CN120537454A - A gas trailer fixed control system with earthquake monitoring and gas leak cut-off functions - Google Patents

Abstract

The invention relates to the technical field of trailer equipment, in particular to a gas trailer fixed control system with earthquake monitoring and gas leakage cutting-off functions. The gas trailer fixing control system comprises a vibration isolation device for absorbing vibration energy, a supporting structure for supporting the trailer, a fixing structure and a weighing device, wherein the fixing structure and the weighing device are arranged on the supporting structure, an acceleration sensor for sensing vibration in the X-axis, Y-axis and z-axis directions, and a control unit respectively electrically connected with the fixing structure, the weighing device and the acceleration sensor. The vibration isolation device is arranged at the bottom of the supporting structure, and the supporting structure is positioned between the vibration isolation device and the weighing device. The control unit controls the fixed structure to move in a rotary or sliding manner so that the fixed structure fixes the side of the trailer. The gas trailer fixing control system solves the technical problems that the existing trailer fixing technology is poor in fixing effect and poor in coping capability when external force vibrates.

Description

Gas trailer fixed control system with earthquake monitoring and gas leakage cutting-off functions

Technical Field

The invention relates to the technical field of trailer equipment, in particular to a gas trailer fixed control system with earthquake monitoring and gas leakage cutting-off functions.

Background

In industrial sites such as semiconductor factories, chemical factories, hydrogen gas stations, etc., trailer vehicles are widely used for mass transportation and supply of specialty gases. These trailers are typically loaded with large volumes of high-risk gas, located at the periphery of the facility, and run in a fixed location for several hours to days after installation. At this time, the firm and safe fixing of the trailer is an important task directly related to the safety and working efficiency of the facility.

However, most sites still use manual means to install and remove the fixtures. This approach requires the operator to manually operate the steel chain, bolt clamps, fixed brackets, etc., and make adjustments depending on the structure of the trailer. Repeated operation of multiple fixed points is required each time a truck is changed. Such repetitive work is time consuming, can also increase the fatigue of the operator, and increases the risk of the work.

Especially in case of inconsistent shapes of the trailer frame or fixing points, the fixing work will become more complicated and the possibility of erroneous operation will increase.

Furthermore, trailers are often installed in environments where working space is small or where a weighing platform is provided, such a construction may affect the center of gravity of the trailer due to the position or weight distribution of existing fixtures, thereby reducing the accuracy of gas usage measurement. Such errors can affect the accuracy of the prediction of the trailer replacement cycle and thus the operating efficiency of the overall system.

Thus, the prior art approaches lack uniformity in the securement forces in different environments, and the securement effect is dependent on the skill of the installer, with structural limitations. This means that even if the trailer is in a fixed position, it may cause safety hazards due to minor vibrations, shocks or unstable movements when the equipment is disconnected.

That is, the conventional method can achieve the basic fixing purpose under normal conditions, but cannot provide effective coping capability when an earthquake or an external shock occurs.

Based on the above background, there is a need to introduce an automated system capable of rapidly and automatically completing the fixing and releasing of a trailer, not only providing a daily stable fixing function, but also actively preventing the trailer from toppling over and leaking gas when an earthquake occurs.

Disclosure of Invention

The invention aims to overcome the defects of the prior art, provides a gas trailer fixing control system with earthquake monitoring and gas leakage cutting-off functions, and solves the technical problems of poor fixing effect and poor coping ability in external vibration existing in the conventional trailer fixing technology.

In order to achieve the above purpose, the invention adopts the following technical scheme:

The invention provides a gas trailer fixing control system with earthquake monitoring and gas leakage cutting-off functions, which comprises a vibration isolation device for absorbing vibration energy, a supporting structure for supporting a trailer, a fixing structure and a weighing device which are arranged on the supporting structure, acceleration sensors for sensing vibration in X-axis, Y-axis and z-axis directions, and a control unit which is electrically connected with the fixing structure, the weighing device and the acceleration sensors respectively. The vibration isolation device is arranged at the bottom of the supporting structure, and the supporting structure is positioned between the vibration isolation device and the weighing device. The control unit controls the fixing structure to move in a rotating or sliding manner so that the fixing structure fixes the side surface of the trailer.

When the vibration sensed by the acceleration sensor exceeds a preset threshold value, an alarm signal is generated and sent to the control unit, and the control unit executes the operation of closing the valve of the gas control device and sends information sensed by the acceleration sensor, information monitored by the weighing device and gas cut-off state information to the central monitoring server.

In one possible implementation manner, the fixing structure includes a central shaft, a fixing rod and a rotating shaft, the central shaft and the fixing rod are rotationally connected through the rotating shaft, one end of the central shaft away from the rotating shaft is installed on the supporting structure, and the central shaft is arranged along the vertical direction of the supporting structure. The control unit controls the rotation shaft to rotate and drives the fixing rod to rotate and move to the side face of the trailer by taking the central shaft as a reference, so that the fixing rod fixes the side face of the trailer.

In one possible implementation manner, the fixing structure includes a central shaft and a fixing rod, the fixing rod is arranged on the central shaft in a protruding manner, the central shaft is arranged along the vertical direction of the supporting structure, and the central shaft is embedded in the supporting structure in a telescopic manner. The control unit controls the central shaft to move telescopically in the vertical direction of the supporting structure so that the fixing rod fixes the side surface of the trailer.

In one possible implementation manner, the supporting mechanism is provided with a storage cavity, and the central shaft is retractably embedded in the storage cavity. When the central shaft is in a contracted state, the central shaft can be contained in the containing cavity.

In one possible implementation manner, the fixing structure includes a central shaft and a fixing rod, the fixing rod is arranged on the central shaft in a protruding manner along the horizontal direction of the supporting structure, the fixing rod is embedded in the central shaft in a telescopic manner, and the central shaft is arranged along the vertical direction of the supporting structure. The control unit controls the fixing rod to move in a telescopic manner in the horizontal direction of the supporting structure, so that the fixing rod fixes the side face of the trailer.

In one possible implementation, the central shaft is telescopically embedded in the support structure. The control unit controls the central shaft to move along the vertical direction of the supporting structure to drive the fixing rod to move to the side face of the trailer, and/or controls the fixing rod to move in a telescopic manner along the horizontal direction of the supporting structure so that the fixing rod can fix the side face of the trailer.

In one possible implementation manner, the fixing structure includes a central shaft, a fixing rod and a rotating shaft, the central shaft and the fixing rod are rotationally connected through the rotating shaft, the central shaft is arranged along the vertical direction of the supporting structure, the central shaft is retractably buried in the supporting structure, and the fixing rod is protrusively arranged at the upper end of the central shaft. The control unit controls the central shaft to move along the vertical direction of the supporting structure to drive the fixing rod to move to the side face of the trailer, and/or controls the rotating shaft to rotate to drive the fixing rod to rotate and move to the side face of the trailer by taking the central shaft as a reference, so that the fixing rod is used for fixing the side face of the trailer.

In one possible implementation, a seal is provided on the securing lever to enhance the engagement of the securing lever with the trailer side.

In one possible implementation, the gas trailer stationary control system further comprises a stationary support table movably embedded in the support structure, and the stationary support table is electrically connected with the control unit. When the trailer is separated from the vehicle body, the control unit controls the fixed supporting table to ascend from the embedded position so that the fixed supporting table supports the bottom of the trailer.

In one possible implementation, the gas trailer stationary control system further comprises a display panel disposed on the stationary structure, the display panel being electrically connected to the control unit. The display panel displays the working state of the gas fixed control system through visual information in the form of preset colors and characters. .

Compared with the prior art, the trailer fixing device has the beneficial effects that the functions of automatically fixing and releasing the trailer are realized through the cooperation among the supporting structure, the fixing structure, the weighing device and the control unit, the working efficiency is improved, and the workload of operators is reduced, wherein the design form and the working mode of the fixing structure can realize stable and reliable trailer fixing operation so as to improve the stability and the accuracy of the trailer fixing effect. In addition, through the cooperation of shock insulation device, acceleration sensor and control unit, can detect the external force vibrations including the earthquake and take the safe operation of closing the valve to the security of gas fixed control system has been improved, and then has solved the fixed technique of current trailer and has had the technological problem that the fixed effect is not good and the coping ability is not good when external force shakes.

Drawings

Fig. 1 is a schematic structural diagram of a gas trailer fixing control system provided by the invention.

Fig. 2 is a schematic diagram of a fixing structure and driving method according to an embodiment of the invention.

Fig. 3 is a schematic structural diagram of a fixing structure in a buried state according to a second embodiment of the present invention.

Fig. 4 is a schematic structural diagram of a fixing structure in a sliding and extending state according to a second embodiment of the present invention.

Fig. 5 is a schematic diagram of a fixing structure and driving method according to a third embodiment of the present invention.

Fig. 6 is a schematic diagram of a fixing structure and driving method according to a fourth embodiment of the present invention.

Fig. 7 is an assembly schematic diagram of a display panel according to the present invention.

Fig. 8 is a schematic diagram of a structure and a driving manner of a fixed support table according to the present invention.

Fig. 9 is a schematic diagram of another structure and driving method of the fixed support table according to the present invention.

Fig. 10 is a schematic diagram of an assembly structure of a shock insulation device and an acceleration sensor according to the present invention.

Fig. 11 is a schematic view of a fixed state of a trailer according to the present invention.

The attached drawings are identified:

1. the gas trailer fixing control system comprises 100 parts of a supporting structure, 110 parts of a storage cavity, 200 parts of a fixing structure, 210 parts of a central shaft, 220 parts of a fixing rod, 221 parts of a sealing piece, 230 parts of a rotating shaft, 240 parts of an indication panel, 300 parts of a fixing supporting table, 310 parts of a supporting shaft, 320 parts of a supporting part, 400 parts of a control unit, 500 parts of a shock insulation device, 600 parts of a weighing device, 700 parts of an acceleration sensor, 10 parts of a vehicle body, 20 parts of a trailer, 21 parts of a high-pressure container, 22 parts of a trailer frame.

Detailed Description

In order to solve the technical problems, the invention provides a gas trailer fixing control system with functions of earthquake monitoring and gas leakage cutting, and the technical scheme and the embodiment of the invention are described in detail with reference to the accompanying drawings.

In the description of the present application, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present application and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application.

In the description of the present application, it should be noted that the terms "mounted," "connected," "coupled," and "connected," are to be construed broadly, as well as, for example, fixedly connected, detachably connected, or integrally connected, unless otherwise specifically defined and defined, and that the specific meaning of the terms in the present application is understood as appropriate to a person of ordinary skill in the art.

The terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, unless otherwise indicated, the meaning of "a plurality" is two or more.

The invention provides a gas trailer fixing control system which is used for a gas trailer used in places such as a semiconductor factory, a chemical factory, a hydrogen filling station and the like, and can realize automatic fixing and releasing of the trailer, so that the working efficiency and the fixing safety are improved simultaneously.

Fig. 1 is a schematic structural diagram of a gas trailer fixing control system 1 provided by the invention.

First, an environment in which the gas trailer fixed control system 1 of fig. 1 is configured will be described.

The gas trailer fixing control system 1 shown in fig. 1 is applied to industrial sites such as semiconductor factories, factory equipment, hydrogen filling stations, and the like, and is used for safely fixing a trailer 20 when the trailer 20 for transporting a special gas is parked.

At this time, the object to be fixed by the gas trailer fixing control system 1 in fig. 1 is a trailer 20 vehicle composed of a vehicle body 10 and a trailer 20.

Wherein the vehicle body 10 functions as a towing trailer 20 and may be coupled to or decoupled from the trailer 20. The trailer 20 is constituted by a loadable high-pressure container 21 and a trailer 20 frame for loading the high-pressure container 21.

Specifically, the high-pressure vessel 21 may be a gas cylinder or a plurality of gas cylinders storing a high-pressure state or liquid-state specialty gas, and is installed inside the frame of the trailer 20 for industrial gas transportation. The trailer 20 frame is a structure that supports the high-pressure vessel 21, and can be coupled to or decoupled from the vehicle body 10.

In this specification, the term "trailer 20" may refer to either the high pressure vessel 21 or the frame of the trailer 20, or both, as commonly understood and applicable.

Next, the configuration of the gas trailer fixing control system 1 and the driving method of each component will be specifically described.

Fig. 1 is a schematic structural diagram of a gas trailer fixing control system provided by the invention.

Referring to fig. 1, in an alternative embodiment, a gas trailer stationary control system 1 may include a support structure 100, a stationary structure 200, a stationary support table 300, and a control unit 400. In addition, according to various embodiments described later, the gas trailer fixing control system 1 may further include a shock insulation device 500, a weighing device 600, and an acceleration sensor 700.

The support structure 100 is a structure located below the trailer 20 for supporting the trailer 20 while providing a foundation platform for the installation of various components in the gas trailer stationary control system 1.

Alternatively, the support structure 100 may be constructed of concrete, steel, or composite materials that provide a stable mounting base for the trailer 20 for position fixation and load dispersion. The support structure 100 may be built on the foundation of the site where the trailer 20 is installed or on a fixed structure.

The support structure 100 is designed in consideration of the operating range of the fixed structure 200, the lifting position of the fixed support table 300, the installation depth of the vibration isolation device, and the like according to the replacement work of the trailer 20 and the installation environment. The support structure 100 is one of the core components that determines the stability, positional accuracy, and vibration absorbing effect of the overall structure of the gas trailer fixing control system 1.

In the description of the present specification, the side to which the fixing structure 200 is attached is referred to as a "side face portion" of the support structure 100, one end of the vehicle body 10 in the direction of backing into the support structure 100 is referred to as a "front face portion", the bottom portion of the support structure 100 is referred to as a "lower end portion", and the upper portion is referred to as an "upper end portion", in accordance with the embodiment shown in fig. 1.

The fixing structure 200 is mounted on a side surface portion of the support structure 100, and serves to fix the trailer 20 from the side surface, and is a mechanical fixing member for preventing the trailer 20 from rocking or shifting.

The fixing structure 200 may be constructed in various exemplary ways in fig. 2 to 7 as shown enlarged according to the region a in fig. 1.

Example 1

Fig. 2 is a schematic diagram of a fixing structure and driving method according to an embodiment of the invention.

Referring to fig. 2, in an alternative embodiment, the fixing structure 200 includes a central shaft 210 disposed in a vertical direction of the support structure 100, a fixing rod 220 disposed at an upper end of the central shaft 210 to protrude in a horizontal direction, and a rotation shaft 230 connecting the central shaft 210 and the fixing rod 220.

The fixing lever 220 is designed to perform a rotational movement with respect to the center shaft 210. The securing lever 220 may remain parallel to the longitudinal direction of the trailer 20 during installation of the trailer 20 so as not to interfere with movement of the trailer 20. After the trailer 20 is installed and the vehicle body 10 is withdrawn, the fixing lever 220 is rotated and brought into contact with the side of the trailer 20, thereby stably fixing the side of the trailer 20.

In this process, the central shaft 210 is connected to the fixing lever 220 through the rotation shaft 230, and the rotation shaft 230 is driven according to the control signal of the control unit 400, thereby achieving the rotation control of the fixing lever 220.

Alternatively, the driving of the fixed structure 200 may be achieved by applying the working principle of a rotary clamping cylinder (rotation CLAMP CYLINDER). In this structure, the fixing rod 220 mounted on the upper end of the center shaft 210 is rotatably moved at a certain angle (e.g., 90 degrees) by a rotation stroke of the rotary clamping cylinder, thereby pressing and fixing the side of the trailer 20. In this process, the rotation shaft 230 may be driven by means of an electric actuator, a pneumatic cylinder, a cam mechanism, or the like.

By the above structure, the technical solution of the first embodiment can realize the function of tightly adhering and fixing from the side of the trailer 20, and can automatically perform the fixing action after the trailer 20 is in place.

In addition, in order to raise the fixing force between the fixing structure 200 and the trailer 20, the fixing rod 220 may be provided with a sealing member 221 directly contacting the trailer 20. The sealing member 221 plays a role of preventing slip and absorbing vibration when contacting with the outer edge or side of the trailer 20, thereby improving the stability of the fixed state.

Example two

Fig. 3 is a schematic structural view of a fixing structure in a buried state according to a second embodiment of the present invention, and fig. 4 is a schematic structural view of a fixing structure in a sliding and extending state according to a second embodiment of the present invention.

Referring to fig. 3 and 4, in an alternative embodiment, the fixing structure 200 is composed of a central shaft 210 buried in the support structure 100 and slidably extended and vertically lifted according to a control signal. The structure further includes a fixing rod 220 horizontally disposed at an upper end of the central shaft 210, a sealing member 221 covering one side of the fixing rod 220, and a rotation shaft 230 connecting the central shaft 210 and the fixing rod 220.

At this time, the center shaft 210 may have a multi-stage sliding structure and its vertical length is adjusted by an internal driving mechanism to match the height of the side of the trailer 20.

Accordingly, after the trailer 20 is mounted, the fixing rod 220 is moved to a position corresponding to the side of the trailer 20 by the elevation of the central shaft 210, and then, is rotated based on the central shaft 210 after the elevation according to the control signal, thereby being closely attached to the side of the trailer 20. Thereby, the fixation of the side surface of the trailer 20 can be effectively realized.

At this time, the support structure 100 is provided with a receiving cavity 110 for completely receiving the fixing rod 220 therein without being exposed when the central shaft 210 is lowered and is in a buried state.

Such a design may provide protection for the fixed structure 200 when it is not in use and may avoid occupying or interfering with the working space when the trailer 20 is in and out of the yard.

Alternatively, the driving mode of the fixing structure 200 may be implemented by a combination of a sliding cylinder structure and a rotary clamping cylinder mechanism, which integrates two action mechanisms of vertical lifting and rotary clamping.

First, the central shaft 210 of the fixed structure 200 is raised in the vertical direction in a sliding cylinder manner after receiving a driving signal of the control unit 400 from a state of being buried in the support structure 100. At this time, the lifting operation may be performed by a hydraulic multistage cylinder structure similar to that used in the dump trailer 20, and the center shaft 210 may be lifted from the ground by expanding the multistage cylinder from bottom to top. Thereby, the center shaft 210 can be precisely raised to a height corresponding to the fixed position of the side of the trailer 20.

Subsequently, the fixing rod 220 horizontally disposed at the upper end of the central shaft 210 performs a rotating action around the rotation shaft 230, which can be achieved by the principle of a rotation stroke of the rotary clamping cylinder. That is, the fixing rod 220 rotates at an angle (e.g., 90 degrees) at the top end of the central shaft 210 to contact the side of the trailer 20, thereby constructing a fixed state that mechanically prevents the trailer 20 from shaking or shifting.

The second embodiment can not only flexibly cope with the deviation in the installation height and position of the trailer 20, but also ensure the stability of fixation by the rotation and clamping actions. Meanwhile, the precision of repeated actions is improved, and the space utilization efficiency and other advantages are excellent.

Example III

Fig. 5 is a schematic diagram of a fixing structure and driving method according to a third embodiment of the present invention.

Referring to fig. 5, in an alternative embodiment, the fixing structure 200 includes a central shaft 210 fixedly provided on the support structure 100 in a vertical direction, a fixing rod 220 standing by in a buried state inside an upper end of the central shaft 210 and extending in a horizontal direction in a sliding manner under a control command, and a sealing member 221 coated on one side of the fixing rod 220.

After the trailer 20 is mounted, the fixing rod 220 is extended horizontally from the inside of the central shaft 210 under the control of the control unit 400, and is mechanically fixed by being in close contact with the side of the trailer 20 by a linear movement.

Alternatively, the driving manner of the fixing structure 200 may be implemented by a hydraulic cylinder structure applied to the dump trailer 20. In this structure, the fixing rod 220 is buried in advance inside the upper end of the center shaft 210, and is driven by the hydraulic cylinder to slide out in the horizontal direction according to the triggering of the control signal. The slide cylinder may be constructed in a multi-stage structure or a linear driving type actuator, and the protruded fixing rod 220 contacts the side of the trailer 20, thereby accomplishing a mechanical fixing operation.

In the third embodiment, the rotation or lifting operation is not added to the main body of the central shaft 210, and the fixing rod 220 is linearly moved in the horizontal direction only by the sliding mechanism inside. Therefore, the scheme is particularly suitable for a narrow space environment in which space utilization is important and a rotating structure is difficult to adopt. Meanwhile, under the conditions of constant installation height and standardized fixed position of the trailer 20, the structure has the advantages of simplicity, easiness in maintenance and high stability.

Example IV

Fig. 6 is a schematic diagram of a fixing structure and driving method according to a fourth embodiment of the present invention.

Referring to fig. 6, in an alternative embodiment, the fixing structure 200 includes a central shaft 210 buried in the supporting structure 100 and slidably raised in a vertical direction according to a control command, a fixing rod 220 buried inside an upper end of the central shaft 210 and slidably protruded in a horizontal direction according to a control signal, and a sealing member 221 coated on one side of the fixing rod 220.

Alternatively, the fixed structure 200 is actuated in a sequential manner by a multi-section sliding structure (multi-STAGE SLIDING structure).

At this time, the sequence of the actions of the central shaft 210 and the fixing rod 220 may be controlled as follows according to the instruction of the control unit 400:

First, the central shaft 210 is stepped up from the support structure 100 in the vertical direction to a height corresponding to the fixed portion of the trailer 20. Subsequently, the fixing rod 220 buried in the upper end of the center shaft 210 slides out in the horizontal direction and contacts the side of the trailer 20, thereby mechanically fixing the trailer 20.

Alternatively, the fixed structure 200 may be driven by a multi-stage hydraulic cylinder or linear actuator structure used to lift the cargo box of the dump trailer 20.

Specifically, the central shaft 210 embedded in the support structure 100 may constitute a sliding cylinder or a multi-stage hydraulic cylinder structure, which is stepped up in a vertical direction according to a control signal. This lifting action operates on the principle of lifting the dump truck bed, enabling the fixed structure 200 to reach precisely the height of the side fixed part of the trailer 20.

In addition, the fixing rod 220 located inside the upper end of the central shaft 210 may be slid out in a horizontal direction by a sliding cylinder or a linear actuator. Thus, the fixing rod 220 contacts the side surface of the trailer 20, and mechanical fixation is achieved from the side surface.

The structure of the fourth embodiment can not only finely adjust the fixed position of the trailer 20 in both the height and width directions, but also flexibly adapt to trailers 20 of various specifications by independently combining the action mechanisms of vertical lifting and horizontal sliding. The structure is particularly suitable for industrial environments with limited installation space and diverse fixed position changes, can simultaneously ensure the fixed precision and the reliability of automatic control, and is an efficient and practical fixed solution.

In addition, as in the fixing rod 220 of the above embodiment, a sealing member 221 may be disposed on a surface directly contacting the trailer 20 to enhance the fixing force with the trailer 20.

The sealing member 221 can play a role of preventing slip and absorbing shock when contacting the outside or side of the trailer 20, thereby improving the stability of the fixed state.

For example, the sealing members 221 may be made of rubber pads with high friction coefficient, polyurethane, silica gel, etc. to prevent abrasion and sliding caused by direct contact of metal, or may be built-in with a buffer spring pad or a shock-absorbing layer to effectively alleviate excessive force transmission or vibration generated during fixing.

The sealing member 221 may be mounted on the fixing rod 220 by a bolt fixing method, an insert molding method or a sliding insertion method, and may be replaced according to the specification of the trailer 20 to be designed as a detachable modular structure.

The sealing member 221 can be firmly attached to the side of the trailer 20 after the fixing operation is completed, so that not only the fixing reliability is improved, but also damage and noise caused by contact between metals can be prevented, and the reproducibility of the position is ensured during repeated use, thereby further improving the stability and durability of the system.

Fig. 7 is an assembly schematic diagram of a display panel according to the present invention.

Referring to fig. 7, further, the fixing structure 200 includes an indication panel 240 which outputs status information including an operation status, a standby status, a vehicle entrance status, a replacement status, a safety status, and a dangerous status according to the operation status of the fixing structure 200 controlled by the control unit 400, and prompts with preset colors and characters as visual information.

For example, the indication panel 240 may be disposed on the front or side of the fixing structure 200 (such as the central shaft 210 or the fixing rod 220), and may take the form of LEDs or digital display, and display preset color and text information according to the status signal transmitted by the control unit 400.

For example, when the gas trailer stationary control system 1 is running, the indication panel 240 displays the word "in-motion-inhibit access" while illuminating a red light indicating that the equipment is in a dangerous condition and should be absolutely inhibited from approaching, and a red warning will be maintained to prevent false entry even if the equipment is in part replacement or maintenance.

When the device is in standby state, the words "standby-no access" are displayed and the yellow warning light is lit, suggesting that although the device is not active, there is a possibility of sudden action, and vigilance must be maintained.

If the vehicle is driving in, a yellow light warning of 'vehicle entering-forbidden entering' is displayed, the vehicle is prompted to enter the control area, and the safety distance is ensured.

If the device is completely stopped and the operation is allowed, a word of 'safe state-start operation' is displayed and a green indicator light is lighted to indicate that the device is in a safe state currently, and the operation can be performed.

Upon emergency or detection of an accident risk, the indicator panel 240 will flash a strong red light and display a "danger-prohibited access" word, immediately providing a visual alarm, ensuring timely prevention of access and emergency treatment.

Such an indication panel 240 can intuitively guide judgment of "whether or not it is accessible", "whether or not it is workable", etc. by being installed at a conspicuous position in the line of sight of the operator, thereby assisting decision. And according to the action stage of the fixing device, the external false approach or safety accidents can be effectively prevented.

Next, the fixed support 300 is a mechanical fixing member for supporting the weight of the trailer 20 from below in a state where the trailer 20 is separated from the vehicle body 10.

It is generally buried in the supporting structure 100 in a standby state, and is lifted upward in a curved or straight line manner to contact with the lower end of the trailer 20 after receiving a control signal, thereby realizing the anti-overturning and anti-falling functions.

The fixed support 300 is constructed as shown in region B of fig. 1 and can refer to the embodiment of fig. 8 or 9.

Fig. 8 is a schematic diagram of a structure and a driving manner of a fixed support table according to the present invention.

As shown in fig. 8, the fixed support table 300 includes a support shaft 310 buried in the support structure 100 and automatically unfolded upward in a standby state according to a signal from the control unit 400, and a support part 320 installed at the top of the support shaft 310 and capable of stably transmitting the weight of the trailer 20 to the support shaft 310 when contacting the bottom of the trailer 20.

For example, the support shaft 310 may be rotatably unfolded by a hinge connection or a hydraulic driving mechanism, and the support portion 320 may be moved upward as the support shaft 310 is lifted up, contact with the bottom frame of the trailer 20, and vertically transfer the weight thereof.

In this process, the supporting portion 320 may be fixed at the end of the supporting shaft 310 to support at a set angle or in a vertical state, or may be provided with an additional hinge or buffer structure to achieve an automatic alignment function with the contact surface of the trailer 20.

Accordingly, when the trailer 20 is separated from the vehicle body 10, the supporting shaft 310 is unfolded upward, and the weight of the trailer 20 is directly supported from below by the supporting portion 320, so that the forward tilting, the overturning, or the displacement and falling of the connecting surface are effectively prevented.

The structure can increase the grounding area and improve the supporting stability by adopting a bending and rising design. Meanwhile, the device can be stored underground, so that the device has good adaptability and convenience in an environment with limited installation space.

Fig. 9 is a schematic diagram of another structure and driving method of the fixed support table according to the present invention.

Referring to fig. 9, the fixed support 300 is in a standby state in a state of being buried in the support structure 100, and is lifted up above the ground by a sliding manner upon receiving a control signal from the control unit 400, and includes a support shaft 310 and a support portion 320 provided at an upper end of the support shaft 310 to stably transfer a load of the trailer 20 to the support shaft 310 by contacting a lower end of the trailer 20.

For example, the fixed support table 300 may be driven by a multi-stage hydraulic cylinder or a linear actuator structure for lifting the bucket on the dump trailer 20.

Specifically, the support shaft 310 buried in the support structure 100 may take the form of a sliding cylinder or a multi-stage hydraulic cylinder, which may be stepped up in the vertical direction according to a control signal. This lifting action is the same principle as the lifting of the bucket on the dump truck, allowing the support shaft 310 to be lifted to a position where it contacts the lower end of the trailer 20. Thus, the support portion 320 contacts the lower end of the trailer 20, and functions to support the trailer 20.

In the above embodiment, if the weighing device 600 is provided above the support structure 100, the fixed support table 300 may be installed inside or at the side of the weighing device 600.

The control unit 400 can receive event signals generated by various components in the gas trailer fixing control system 1, and control the operation states of the fixing structure 200 and the fixing support 300 accordingly. For example, the support structure 100 may include one or more sensing devices for detecting whether the trailer 20 is in or out, and upon detection of an event associated with the trailer 20, a corresponding signal may be sent to the control unit 400.

For example, when the control unit 400 receives a signal to detect whether the trailer 20 is mounted on the support structure 100, the securing structure 200 may be activated to actuate it by rotating or sliding, thereby securing the sides of the trailer 20.

For another example, when the control unit 400 detects that the trailer 20 has been separated from the vehicle body 10, the fixed support table 300 may be activated to be lifted from the buried state, supporting the weight of the trailer 20 from below.

For example, the control unit 400 may selectively perform various operations in conjunction with the shock insulation device 500, the weighing device 600, the acceleration sensor 700, and the like, which may be additionally included in the gas trailer stationary control system 1.

The control unit 400 may be driven by a processor running based on stored control instructions or software. The processor is an arithmetic hardware device that controls the overall operation of the unit 400. For example, the control unit 400 may be implemented by a microcontroller (such as STM 32), a relay, an emergency power supply (DC 24V or UPS), etc. circuit, and may include an internet of things (IoT) module to perform remote monitoring and administrator notification functions. The control unit 400 may be coupled with each component of the gas trailer fixing control system 1 through wired or wireless communication, so that flexible network configuration may be realized according to installation environments or equipment arrangement conditions, and real-time control and status monitoring functions may be reliably performed. Thus, the control unit 400 can realize real-time control by linking with each component of the gas trailer fixing control system 1 through digital or analog input/output (I/O). Meanwhile, the control unit 400 may also visually display the operation state of the gas trailer stationary control system 1 through a real-time monitoring User Interface (UI) based on multi-channel screen output, and provide remote monitoring and administrator notification functions. In addition, the control unit 400 may also store log information for various components of the gas trailer stationary control system 1.

The following is a description of the shock isolation device 500, the weighing device 600, and the acceleration sensor 700 that may be additionally coupled to the gas trailer stationary control system 1 according to various embodiments.

The shock insulation device 500 is installed at the bottom of the supporting structure 100, and can absorb or disperse horizontal vibration transferred from the foundation through the elastic moving structure while stably supporting the vertical load acting on the whole supporting structure 100.

For example, the shock insulation device 500 may be made of a rubber composite material, a metal spring, a sliding pad, or the like, and functions to buffer the entire strong shock transmission of the trailer 20 and the support structure 100 when an external shock such as an earthquake occurs, thereby reducing the risk of the trailer 20 tipping over and structural damage.

A weighing device 600 is mounted on top of the support structure 100 for detecting the total weight of the trailer 20 mounted on the support structure 100 and may transmit weight data to the control unit 400. For example, the weighing apparatus 600 may be implemented as a Strain Gauge based load cell, may be used to infer the gas balance from the load change, or may be used to verify proper installation at the time of installation. A trailer 20 change alert may also be generated when the weight is below a certain threshold.

The weighing device 600 is used for the trailer 20 loaded with liquefied gas, and the residual liquefied gas amount is confirmed by measuring the weight to determine the replacement timing of the trailer 20. In contrast, when using the trailer 20 of gaseous gas, the weighing device 600 may be omitted, and instead the amount of remaining gas is confirmed by the barometer to determine the timing of the trailer 20 replacement.

The acceleration sensor 700 is installed at a plurality of positions such as a lower part (e.g., the ground) and an upper part (e.g., the ceiling of a structure) of a facility where the gas trailer fixing control system 1 is located, and is capable of sensing three-dimensional vibrations in X-axis, Y-axis, and Z-axis directions in real time.

In this way, each acceleration sensor 700 may detect a severe vibration caused by an earthquake or an external force and transmit an alarm signal to the control unit 400 when its amplitude or frequency exceeds a preset threshold. After receiving the alarm signal, the control unit 400 will immediately close the valve of the gas control device, and integrate the data collected by each sensor at the same time, and report the real-time status to the central monitoring server. For example, when the acceleration sensor 700 detects an earthquake (0.1 g to 0.12 g), the control unit 400 may close the valve of the gas control device within 0.3 seconds, thereby preventing leakage.

The system based on the sensor not only ensures the stability of the gas trailer fixed control system 1 in daily operation, but also has the automatic response capability to emergency conditions, thereby being beneficial to improving the safety, fireproof capability and operation efficiency of industrial field operators. A single control unit 400 can manage the fixing, replacement and earthquake response of the trailer 20 at the same time, and can realize remote monitoring and alarm support by additionally providing the internet of things module.

Fig. 10 is a schematic diagram of an assembly structure of a shock insulation device and an acceleration sensor according to the present invention.

Referring to fig. 10, the support structure 100 of the gas trailer fixing control system 1 is provided at a lower end thereof with a plurality of shock-absorbing devices 500 for effectively absorbing and dispersing vertical and horizontal vibration energy transferred from the ground, thereby stably maintaining the fixed state of the trailer 20.

The acceleration sensor 700 is attached to the lower end and the upper end of the ground structure on which the gas trailer fixed control system 1 is disposed, respectively, and can sense the vibration state of the entire trailer 20 and the peripheral devices in three directions (X, Y, Z) in real time.

Such an arrangement allows for comparative analysis of the relative vibration differences between the sensors and the acceleration changes at each location, thereby helping the control unit 400 to more accurately determine whether an earthquake has occurred and the vibration intensity. When the detected acceleration value exceeds a preset threshold value (for example, the earthquake intensity is 6.0, or the acceleration range in the horizontal direction is 0.12 g-0.15 g), the control unit 400 will perform emergency response operations including closing the gas control valve, displaying a warning, or automatically locking the fixing structure 200, etc., in conjunction with the national earthquake information API.

In this case, the control unit 400 includes an emergency stop interface configuration of the gas control device, and can control the gas valve through the emergency stop interface.

The gas control device emergency stop interface is a control module that controls the opening and closing of a gas valve mounted on the trailer 20 to shut off the flow of gas. For example, when the gas control device emergency stop interface receives a signal from the control unit 400, it acts by closing the solenoid valve to quickly shut off the gas supply to the trailer 20.

For example, the gas control emergency stop interface may be mounted in the control box of the trailer 20 or on an external gas control panel, controlled by the control unit 400, and may include LEDs that provide visual status display during emergency stop operation, as well as the ability to record the time and history of occurrence of an emergency stop. For example, the interface may be connected to and controlled by a relay module of the control unit 400, and may rapidly operate within 0.3 seconds when an event such as an earthquake is detected, completing a gas shut-off operation.

As shown in fig. 10, the shock insulation device 500 and the acceleration sensor 700 operate as key components of the basic safety guarantee of the whole gas trailer fixing control system 1, so that the trailer 20 fixing control system 1 can stably and automatically perform the coping function even in the case of earthquake and external impact.

Fig. 11 is a schematic view of a fixed state of a trailer according to the present invention.

As shown in fig. 11, the gas trailer stationary control system 1 is in an operating state by a plurality of stationary structures 200 and stationary support tables 300 to fix the sides and bottom of the trailer 20. The trailer 20 includes a high pressure vessel 21 and a trailer 20 frame, and a plurality of fixing structures 200 are arranged at the sides of the support structure 100, and fixing rods 220 of the respective fixing structures 200 are in contact with and fixed to the sides of the trailer 20 frame. Each of the fixing structures 200 tightly fixes the side of the trailer 20 through a rotating or sliding action according to the control of the control unit 400 to provide a sufficient supporting force to prevent the trailer 20 from being easily detached under an earthquake or an external force impact.

Further, the fixed support 300 is an operating state shown in a state in which it is assumed that the trailer 20 has been separated from the vehicle. The fixed support table 300 is originally accommodated inside the support structure 100, and rises when needed and safely supports the bottom of the frame of the trailer 20 from below, thereby realizing the function of preventing toppling and falling. Or when used to measure the weight of the liquefied gas trailer 20, such as when the weighing device 600 is installed, it is necessary to accurately measure the weight of the trailer 20 even in a state of being supported by the fixed support table 300, and thus the fixed support table 300 may be designed to be installed inside or at the side of the weighing device 600.

The lower portion of the support structure 100 incorporates a shock isolation device 500 to absorb or disperse vibrations from the ground, thereby improving the structural stability of the overall gas trailer stationary control system 1 and supporting vibration damping over a range of conditions with the trailer 20 stationary. Furthermore, a weighing device 600 may be provided above the support structure 100, in which case the system design ensures that the securement of the trailer 20 does not cause a center of gravity shift, thereby improving the accuracy of the fuel gas usage measurement and enhancing the predictability of the trailer 20 replacement cycle.

In one embodiment, the fixed structure 200 may be modular in design to accommodate trailers 20 of different sizes (2 tons to 5 tons) and different foundation conditions (e.g., concrete foundation or soft foundation). In addition, the gas trailer stationary control system 1 meets KOSHA anti-seismic guidelines and the ISO 45001 standard and employs a waterproof/dustproof design of over IP66 class to ensure semi-permanent use in an outdoor environment.

The fixing structure 200 is not directly fixed to the concrete floor but is mounted on the supporting structure 100 having the shock-insulating means 500 (Seismic Isolation Bearing) built therein, in such a manner that vibration absorption, equipment protection and prevention of pipe breakage can be simultaneously achieved at the time of an earthquake. The shock insulation device 500 may take the form of a rubber laminate or lead-containing core (LRB, lead Rubber Bearing) or the like, and may be disposed below the fixing structure 200 at a certain interval.

The application possibilities of the above-described embodiments will be exemplified below by the case of a practically applicable environment.

For example, the invention may be applied to semiconductor manufacturing factory sites on concrete foundations. In this case, the gas trailer stationary control system 1 may be installed based on a pneumatic cylinder (operating pressure of 5bar or more and 7bar or less, stroke of 200mm specification) to fit the 2-ton trailer 20. In particular, the support structure 100 is designed to support a2 ton load and, in conjunction with an acceleration sensor 700 having a sensitivity of 0.12g, sense the seismic conditions in real time. The results of the simulation test under the conditions that the seismic intensity is 6.0 or more and the horizontal acceleration is 0.12g to 0.15g show that the movement of the trailer 20 is suppressed by at most about 95%, thereby verifying that the trailer 20 can be stably fixed.

Another example is the application of the invention in a hydrogen filling station environment built on a soft foundation. In this case, in order to fix the 5-ton trailer 20, the gas trailer fixing control system 1 may be installed based on a reinforcing structure including an anchoring reinforcement. In particular, the support structure 100 is reinforced to withstand settling or horizontal deformation of soft foundations and provide structural flexibility to accommodate trailers 20 of different sizes and weights. The result of operating the gas trailer fixing control system 1 in this environment shows that no operational disturbance occurs in the process of entering and exiting the trailer 20 and replacing the trailer, and the operational efficiency is maintained by the automatic action function.

As is clear from the above-described practical environment, the gas trailer fixing control system 1 of the present invention can adjust the specifications of each component according to the load of the trailer 20, the foundation characteristics, and the industrial field environment, thereby providing a stable fixing function under various working field conditions.

According to the embodiment, the high-capacity special gas trailer 20 can be automatically fixed and released by utilizing a pneumatic or electric rotating mechanism, so that manual operation is replaced, and the working efficiency is remarkably improved. In particular, in a work environment with a small space, by automating the repetitive fixing work, it is possible to reduce the labor burden on the industrial site and prevent the risk of overturning or shifting the trailer 20 in advance.

In addition, the invention can not only keep the fixed state of the trailer 20 when an earthquake occurs, but also sense external impact and automatically cut off the gas control device within a few seconds, thereby effectively preventing secondary accidents caused by pipeline falling, gas leakage, explosion, fire and the like. In addition to the structural design including the shock isolation device 500, vibrations from the foundation are absorbed and dispersed, minimizing damage to the trailer 20 and the fixed structure 200.

In addition, since the present invention is applicable to various trailers 20 of various sizes and various installation environments, it is possible to provide a high level of safety and operational convenience in the field of high risk gas transportation in semiconductor factories, chemical factories, hydrogen filling stations, etc. on the whole.

The foregoing description is only of the preferred embodiments of the invention, and the above-described embodiments are not intended to limit the invention. Various changes and modifications may be made within the scope of the technical idea of the present invention, and any person skilled in the art may make any modification, modification or equivalent substitution according to the above description, which falls within the scope of the present invention.

Claims (10)

1. A gas trailer fixed control system with earthquake monitoring and gas leak shutoff functions, characterized by comprising a seismic isolation device for absorbing vibration energy, a support structure for supporting the trailer, a fixed structure and a weighing device disposed on the support structure, acceleration sensors for sensing vibration in the X-axis, Y-axis, and Z-axis directions, and a control unit electrically connected to the fixed structure, the weighing device, and the acceleration sensor, respectively; The seismic isolation device is arranged at the bottom of the supporting structure, and the supporting structure is located between the seismic isolation device and the weighing device; The control unit controls the fixing structure to move by rotating or sliding so that the fixing structure fixes the side of the trailer; When the vibration sensed by the acceleration sensor exceeds a preset threshold, an alarm signal is generated and sent to the control unit. The control unit will execute the operation of closing the valve of the gas control device and send the information sensed by the acceleration sensor, the information monitored by the weighing device and the gas cut-off status information to the central monitoring server. 2. The gas trailer fixing control system according to claim 1, wherein the fixing structure comprises a central shaft, a fixing rod, and a rotating shaft, the central shaft and the fixing rod being rotatably connected via the rotating shaft, an end of the central shaft away from the rotating shaft being mounted on the supporting structure, and the central shaft being arranged along a vertical direction of the supporting structure; The control unit controls the rotation shaft to rotate, driving the fixing rod to rotate and move to the side of the trailer with the central axis as a reference, so that the fixing rod fixes the side of the trailer. 3. The gas trailer fixing control system according to claim 1, wherein the fixing structure comprises a central shaft and a fixing rod, the fixing rod is protrudingly provided on the central shaft, the central shaft is provided along a vertical direction of the supporting structure, and the central shaft is telescopically embedded in the supporting structure; The control unit controls the central shaft to telescopically move in a vertical direction of the support structure so that the fixing rods fix the sides of the trailer. 4. The gas trailer fixing control system according to claim 3, wherein the support mechanism is provided with a receiving cavity, and the central shaft is telescopically embedded in the receiving cavity; When the central shaft is in a contracted state, the central shaft can be received in the receiving cavity. 5. The gas trailer fixing control system according to claim 1, wherein the fixing structure comprises a central shaft and a fixing rod, wherein the fixing rod protrudes from the central shaft in a horizontal direction of the supporting structure and is telescopically embedded in the central shaft, and the central shaft is arranged in a vertical direction of the supporting structure; The control unit controls the fixing rod to telescopically move in a horizontal direction of the supporting structure so that the fixing rod fixes the side surface of the trailer. 6. The gas trailer fixing control system according to claim 1, wherein the central shaft is telescopically embedded in the supporting structure; The control unit controls the central axis to move in the vertical direction of the support structure, driving the fixing rod to move to the side of the trailer, and/or the control unit controls the fixing rod to move telescopically in the horizontal direction of the support structure, so that the fixing rod fixes the side of the trailer. 7. The gas trailer fixing control system according to claim 1, wherein the fixing structure comprises a central shaft, a fixing rod, and a rotating shaft, the central shaft and the fixing rod being rotatably connected via the rotating shaft, the central shaft being arranged along a vertical direction of the supporting structure and being telescopically embedded in the supporting structure, and the fixing rod being protrudingly arranged at an upper end of the central shaft; The control unit controls the central axis to move in the vertical direction of the support structure, driving the fixing rod to move to the side of the trailer, and/or the control unit controls the rotation axis to rotate, driving the fixing rod to rotate and move to the side of the trailer with the central axis as the reference, so that the fixing rod fixes the side of the trailer. 8. The gas trailer fixing control system according to any one of claims 1 to 7, characterized in that a sealing member is provided on the fixing rod to enhance the adhesion between the fixing rod and the side of the trailer. 9. The gas trailer fixed control system according to claim 1, characterized in that the gas trailer fixed control system further comprises a fixed support platform, the fixed support platform is movably embedded in the support structure, and the fixed support platform is electrically connected to the control unit; When the trailer is separated from the vehicle body, the control unit controls the fixed support platform to rise from the buried position so that the fixed support platform supports the bottom of the trailer. 10. The gas trailer fixed control system according to claim 1, characterized in that the gas trailer fixed control system further comprises a display panel provided on the fixed structure, wherein the display panel is electrically connected to the control unit; The display panel displays the working status of the gas fixed control system through visual information in preset colors and text forms.