CN223275897U - A hydraulically controlled collapse mechanism - Google Patents
A hydraulically controlled collapse mechanismInfo
- Publication number
- CN223275897U CN223275897U CN202422441110.3U CN202422441110U CN223275897U CN 223275897 U CN223275897 U CN 223275897U CN 202422441110 U CN202422441110 U CN 202422441110U CN 223275897 U CN223275897 U CN 223275897U
- Authority
- CN
- China
- Prior art keywords
- oil
- valve
- circuit
- hydraulic
- collapse
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Fluid-Pressure Circuits (AREA)
Abstract
The utility model discloses a hydraulic control collapse mechanism, and belongs to the field of performance show field equipment. The utility model discloses a hydraulic control collapse mechanism, which comprises a hydraulic system and a collapse assembly, wherein the output end of the hydraulic system is connected with the collapse assembly in an installation manner to control the starting and the resetting of the collapse assembly, the hydraulic system also comprises a hydraulic cylinder, the hydraulic cylinder is an actuating element of the hydraulic system, the collapse assembly comprises a movable pulley, a first fixed pulley, a second fixed pulley, a steel wire rope and a collapse body, the first fixed pulley is fixedly arranged above and below the hydraulic cylinder respectively, the movable pulley is rotatably arranged at the top of the hydraulic cylinder, the hydraulic cylinder is connected with the steel wire rope through the movable pulley, and the steel wire rope is connected with the collapse body through the first fixed pulley.
Description
Technical Field
The utility model belongs to the field of performance court equipment, and particularly relates to a hydraulic control collapse mechanism.
Background
The hydraulic control collapse mechanism for the stage performance is a device designed for the stage effect, and can accurately control the movement of the collapse body through a hydraulic system so as to simulate the collapse situation of a wall body, a building structure or other large objects;
If the hydraulic system is required to realize high-precision control of collapse and resetting actions and is also required to meet the requirement of complex stage performance, the hydraulic system needs to output and control ultra-large flow, and if a hydraulic pump matched with the requirement of large flow is adopted, the matched motor, oil tank, control valve and the like are required to be increased by 5-10 times, and meanwhile, the electric control system is correspondingly configured to be improved, so that the cost of the system is very high.
Disclosure of utility model
The utility model aims to solve the technical problem of providing a hydraulic control collapse mechanism which can reduce equipment cost on the premise of not affecting equipment performance.
The utility model relates to a hydraulic control collapse mechanism, which comprises a hydraulic system and a collapse assembly, wherein the output end of the hydraulic system is connected with the collapse assembly in an installation way so as to control the starting and resetting of the collapse assembly;
the hydraulic system also comprises a hydraulic cylinder, and the hydraulic cylinder is an executive component of the hydraulic system;
The collapse assembly comprises a movable pulley, a first fixed pulley, a second fixed pulley, a steel wire rope and a collapse body, wherein the first fixed pulley is fixedly arranged above and below the hydraulic cylinder respectively;
the steel wire rope sequentially passes through the first fixed pulley and the second fixed pulley, and the steel wire rope links the collapse body with the hydraulic system through the first fixed pulley and the second fixed pulley.
The hydraulic system comprises an oil tank, a first oil outlet passage and an oil suction passage, wherein one end of the first oil outlet passage is connected with the oil tank in a penetrating way, one end of the oil suction passage is connected with the oil tank in a penetrating way, a first cartridge valve, a first reversing valve and a throttle valve are sequentially arranged on the first oil outlet passage, the first oil outlet passage is a passage for oil outlet of the oil tank when the system collapses, the oil suction passage is a passage for oil suction when the system collapses, the first cartridge valve is an on-off control valve on the first oil outlet passage when the system collapses suddenly, the first reversing valve is a pilot control valve of the first cartridge valve, and the throttle valve is used for controlling the speed when the system collapses.
The hydraulic system further comprises an electromagnetic reversing valve, a hydraulic control one-way valve, a one-way throttle valve and a balance valve, wherein the electromagnetic reversing valve is a direction control valve for the electric ascending reset and descending of the collapse system;
The hydraulic cylinder comprises a rod cavity and a rodless cavity, a first branch oil way and a second branch oil way are arranged at the tail end of a first oil outlet oil way, the tail end of the first branch oil way is connected with the rodless cavity of the hydraulic cylinder in an installation mode, the second branch oil way is connected with a balance valve, a one-way throttle valve and a hydraulic control one-way valve in an installation mode in sequence, the tail end of the second branch oil way is connected with a first output port arranged on an electromagnetic directional valve in an installation mode, a second cartridge valve and a second directional valve are arranged between the second branch oil way between the electromagnetic directional valve and the hydraulic control one-way valve and the second branch oil way at the front end of the balance valve in an installation mode in sequence, the second cartridge valve is a control valve on an auxiliary control loop when the system collapses, and the second directional valve is a pilot control valve of the second cartridge valve.
The hydraulic oil pump is further improved in that a third cartridge valve and a third reversing valve are sequentially arranged at one end of an oil suction oil path, which is far away from an oil tank, the third cartridge valve is an on-off control valve of the oil suction oil path, the third reversing valve is a pilot control valve of the third cartridge valve, the oil suction oil path is respectively provided with a third branch oil path and a fourth branch oil path through the third cartridge valve, the tail end of the third branch oil path is connected with a rod cavity of a hydraulic cylinder in an installation manner, the fourth branch oil path is sequentially connected with a balance valve, a one-way throttle valve and a hydraulic control one-way valve in an installation manner, and the tail end of the fourth branch oil path is connected with a second output port of the electromagnetic reversing valve in an installation manner.
The utility model further improves that a first pressure measuring joint is arranged on a third branch oil path between the third cartridge valve and the hydraulic cylinder and used for observing the pressure of a rod cavity of the hydraulic cylinder when the first pressure measuring joint is debugged, and a second pressure measuring joint is arranged on the first branch oil path and used for observing the pressure of a rodless cavity of the hydraulic cylinder when the second pressure measuring joint is debugged.
The hydraulic system further comprises a second oil outlet path, an oil suction filter is arranged in the oil tank, one end of the second oil outlet path penetrates through the oil tank and is connected with the oil suction filter in a mounting mode, a hydraulic pump, a one-way valve, a pressure gauge and a pressure sensor are sequentially arranged on the second oil outlet path, the output end of the hydraulic pump is connected with the input end of the one-way valve in a mounting mode, the one-way valve prevents high-pressure oil from flowing back, and the pressure gauge and the pressure sensor are used for observing real-time pressure of the system.
As a further improvement of the utility model, a second oil outlet circuit is connected with the balance valve, the one-way throttle valve and the hydraulic control one-way valve in sequence, and the tail end of the second oil outlet circuit is connected with an oil inlet arranged on the electromagnetic directional valve in a mounting way.
The hydraulic system further comprises an oil return passage, one end of the oil return passage is connected with the oil tank in a penetrating mode, an oil filter is arranged on the oil return passage and is a hydraulic accessory for guaranteeing the cleanliness of a hydraulic medium of the system, the oil return passage is sequentially connected with the balance valve, the one-way throttle valve and the hydraulic control one-way valve in an installation mode, and the tail end of the oil return passage is connected with an oil return port arranged on the electromagnetic reversing valve in an installation mode.
As a further improvement of the utility model, an electromagnetic relief valve is arranged between the second oil outlet passage between the one-way valve and the pressure sensor and the oil return passage between the oil filter and the balance valve, and is used for adjusting the rated pressure of the system.
The hydraulic system further comprises a pump sleeve coupler and a motor, wherein the hydraulic pump is connected with the motor through the pump sleeve coupler, and the motor drives the hydraulic pump to absorb oil from an oil tank through an oil absorbing filter.
Compared with the prior art, the hydraulic control collapse performance system has the advantages that the hydraulic control collapse performance system has the scene of simulating the rapid and sudden collapse of similar objects such as walls and frames in real life, and simultaneously has the performance of realizing slow rising, resetting and descending;
The utility model adopts the dead weight of the equipment as the driving force for collapse, utilizes the collapse process of a combined orderly opening and closing control system of different types of hydraulic control valves, and the hydraulic system only increases the diameters of the control valves and the pipelines to realize the function of sudden collapse, and does not increase hydraulic pumps, motors, oil tanks and the like, and only meets the requirements of slow rising and resetting, thereby greatly reducing the cost of the equipment and greatly improving the cost performance of the equipment on the premise of not influencing the performance of the equipment.
Drawings
FIG. 1 is a schematic diagram of a hydraulic system according to the present invention;
fig. 2 is one of the schematic structural views of the collapse performance system of the present invention;
Fig. 3 is a second schematic structural view of the collapse performance system of the present invention;
fig. 4 is a third schematic structural view of the collapse performance system of the present invention.
The reference numerals in the figures illustrate:
1. An oil tank; 2, a liquid level meter; 3, an air filter; 4, an oil suction filter, 5, a motor, 6, a pump sleeve coupler, 7, a hydraulic pump, 8, a one-way valve, 9, an electromagnetic relief valve, 10, an electromagnetic directional valve, 11, a hydraulic one-way valve, 12, a one-way throttle valve, 13, a balance valve, 14, a pressure gauge, 15, a pressure sensor, 16, an oil filter, 17, a first cartridge valve, 18, a first directional valve, 19, a throttle valve, 20, a second cartridge valve, 21, a second directional valve, 22, a third cartridge valve, 23, a third directional valve, 24, a first pressure measuring joint, 25, a second pressure measuring joint, 26, a hydraulic cylinder, 27, a movable pulley, 28, a first fixed pulley, 29, a wire rope, 30, a collapse body, 31, a first oil outlet path, 311, a first branch oil path, 312, a second branch oil path, 32, an oil suction oil path, 321, a third branch oil path, 322, a fourth branch oil path, 33, a second oil outlet path, 34, an oil return path, 35, a collapse body, 36, a wire rope, a jack bracket, a jack-up bracket, a seat, a jack-down assembly, a seat, a jack-up assembly, a jack-down assembly, a jack-up assembly, a jack assembly, a seat assembly, a stand support, a seat assembly, a stand, a seat assembly, a jack assembly, a seat assembly, a support, a seat assembly, a support, a support, and.
Detailed Description
The present invention will be described in further detail with reference to the following examples, which are illustrative of the present invention and are not intended to limit the present invention thereto.
The hydraulic control efficient collapse performance system comprises a hydraulic system and a collapse assembly, wherein an output end of the hydraulic system is connected with the collapse assembly in a mounting manner so as to control starting and resetting of the collapse assembly.
The hydraulic system comprises an oil tank 1, a first oil outlet path 31 and an oil suction path 32, wherein one end of the first oil outlet path 31 is connected with the oil tank 1 in a penetrating way, one end of the oil suction path 32 is connected with the oil tank 1 in a penetrating way, a first cartridge valve 17, a first reversing valve 18 and a throttle valve 19 are sequentially arranged on the first oil outlet path 31, the first oil outlet path 31 is a path for oil outlet of the oil tank when the system collapses, the oil suction path 32 is a path for oil suction when the system collapses, the first cartridge valve 17 is an on-off control valve on the first oil outlet path 31 when the system collapses suddenly, the first reversing valve 18 is a pilot control valve of the first cartridge valve 17, and the throttle valve 19 is used for controlling the speed when the system collapses.
The hydraulic system further comprises a hydraulic cylinder 26, wherein the hydraulic cylinder 26 comprises a rod cavity and a rodless cavity, and the hydraulic cylinder 26 is an executive component of the hydraulic system.
The hydraulic system further comprises an electromagnetic directional valve 10, a hydraulic control one-way valve 11, a one-way throttle valve 12 and a balance valve 13, wherein the electromagnetic directional valve 10 comprises a first output port, a second output port, an oil inlet and an oil return port, is a directional control valve for the electric ascending reset and descending of the collapse system, the hydraulic control one-way valve 11 is a control element for the equipment to keep the position when the equipment stops, the one-way throttle valve 12 is an electric ascending reset and descending speed regulating valve, and the balance valve 13 is used for keeping the running stability of the system when the system is electrically descended.
The tail end of the first oil outlet oil path 31 is provided with a first branch oil path 311 and a second branch oil path 312, the tail end of the first branch oil path 311 is connected with a rodless cavity of the hydraulic cylinder 26 in a mounting way, the second branch oil path 312 is sequentially connected with the balance valve 13, the one-way throttle valve 12 and the hydraulic control one-way valve 11 in a mounting way, the tail end of the second branch oil path 312 is connected with a first output port arranged on the electromagnetic directional valve 10 in a mounting way, a second cartridge valve 20 and a second directional valve 21 are sequentially arranged between the second branch oil path 312 between the electromagnetic directional valve 10 and the hydraulic control one-way valve 11 and the second branch oil path 312 at the front end of the balance valve 13 in a mounting way, the second cartridge valve 20 is a control valve on an auxiliary control loop when the system collapses, and the second directional valve 21 is a pilot control valve of the second cartridge valve 20.
The oil suction line 32 is provided with a third cartridge valve 22 and a third reversing valve 23 in sequence at one end far away from the oil tank 1, the third cartridge valve 22 is an on-off control valve on the oil suction line 32, the third reversing valve 23 is a pilot control valve of the third cartridge valve 22, the oil suction line 32 is respectively provided with a third branch oil line 321 and a fourth branch oil line 322 through the third cartridge valve 22, the tail end of the third branch oil line 321 is connected with a rod cavity of the hydraulic cylinder 26 in an installation manner, and the fourth branch oil line 322 is connected with the balance valve 13, the one-way throttle valve 12 and the hydraulic control one-way valve 11 in an installation manner in sequence, and the tail end of the fourth branch oil line 322 is connected with a second output port arranged on the electromagnetic reversing valve 10 in an installation manner.
The third branch oil path 321 between the third cartridge valve 22 and the hydraulic cylinder 26 is provided with a first pressure measuring joint 24, the first pressure measuring joint 24 is used for observing the pressure of the rod cavity of the hydraulic cylinder during debugging, the first branch oil path 311 is provided with a second pressure measuring joint 25, and the second pressure measuring joint 25 is used for observing the pressure of the rodless cavity of the hydraulic cylinder during debugging.
The oil tank 1 is fixedly provided with a liquid level meter 2 for observing the oil quantity and the oil temperature in the oil tank 1, the top of the oil tank 1 is fixedly provided with an air filter 3 for communicating the inside and the outside of the oil tank 1, and the air filter 3 is provided with an oil filling port through which oil is filled into the oil tank 1.
The hydraulic system further comprises a second oil outlet path 33 and an oil return path 34, the oil tank 1 is internally provided with an oil suction filter 4, one end of the second oil outlet path 33 penetrates through the oil tank 1 and is connected with the oil suction filter 4 in a mounting mode, the second oil outlet path 33 is sequentially provided with a hydraulic pump 7, a one-way valve 8, a pressure gauge 14 and a pressure sensor 15, the output end of the hydraulic pump 7 is connected with the input end of the one-way valve 8 in a mounting mode, the one-way valve 8 prevents high-pressure oil from flowing back, and the pressure gauge 14 and the pressure sensor 15 are used for observing real-time pressure of the system.
The second oil outlet path 33 is sequentially connected with the balance valve 13, the one-way throttle valve 12 and the hydraulic control one-way valve 11 in an installation way, the tail end of the second oil outlet path 33 is connected with an oil inlet arranged on the electromagnetic reversing valve 10 in an installation way, one end of the oil return path 34 is connected with the oil tank 1 in a penetrating way, the oil return path 34 is provided with an oil filter 16, the oil filter 16 is a hydraulic accessory for ensuring the cleanliness of a hydraulic medium of the system, the oil return path 34 is sequentially connected with the balance valve 13, the one-way throttle valve 12 and the hydraulic control one-way valve 11 in an installation way, and the tail end of the oil return path 34 is connected with an oil return port T arranged on the electromagnetic reversing valve 10 in an installation way.
An electromagnetic relief valve 9 is arranged between a second oil outlet path 33 between the check valve 8 and the pressure sensor 15 and an oil return path 34 between the oil filter 16 and the balance valve 13, and the electromagnetic relief valve 9 is used for adjusting the rated pressure of the system.
The hydraulic system also comprises a pump sleeve coupler 6 and a motor 5, wherein the hydraulic pump 7 is connected with the motor 5 through the pump sleeve coupler 6, and the motor 5 drives the hydraulic pump 7 to absorb oil from an oil tank through the oil absorbing filter 4.
The collapse assembly comprises a movable pulley 27, a first fixed pulley 28, a steel wire rope 29 and a collapse body 30, wherein the first fixed pulley 28 is fixedly arranged above and below the hydraulic cylinder 26 respectively, the movable pulley 27 is rotatably arranged at the top of the hydraulic cylinder 26, the hydraulic cylinder 26 is connected with the steel wire rope 29 through the movable pulley 27, and the steel wire rope 29 is connected with the collapse body 30 through the first fixed pulley 28.
The collapse assembly further comprises a second fixed pulley fixedly arranged on one side of the collapse body 30 facing the hydraulic cylinder 26, a steel wire rope 29 sequentially penetrates through the first fixed pulley 28 and the second fixed pulley, and the steel wire rope 29 links the collapse body 30 and the hydraulic system through the first fixed pulley 28 and the second fixed pulley.
Optionally, a pulley seat is arranged at the top of the free end of the piston rod arranged in the rod cavity of the hydraulic cylinder 26 and positioned outside the hydraulic cylinder 26, a movable pulley 27 is arranged on the pulley seat, and the hydraulic system works to drive the piston to operate so as to drive the pulley to operate up and down.
Optionally, a collar 46 is provided around the outer circumference of the end of the cable 29 that is attached to the collapsed body 30, and a cable clip is provided to further secure the cable 29.
The collapse body 30 comprises two groups of collapse upright post assemblies 35, upright post connecting frames 36 and upright post table top supports 37, wherein the two groups of collapse upright post assemblies 35 are connected through the upright post connecting frames 36 in an installation mode, the collapse upright post assemblies 35 are respectively and fixedly arranged at two ends of the upright post connecting frames 36, the upright post table top supports 37 are arranged between the two groups of collapse upright post assemblies 35, and the upright post table top supports 37 are arranged below the upright post connecting frames 36.
The bottom of the collapse upright post assembly 35 is provided with a rotary support assembly 39, the collapse upright post assembly 35 is rotationally connected with the rotary support assembly 39, and a rotary protection assembly 45 is arranged at the joint of the collapse upright post assembly 35 and the rotary support assembly 39 so as to play a role in protection when the collapse upright post assembly 35 rotates and operates.
Optionally, the collapse assembly further comprises an embedded assembly 48 and a base steel frame assembly 49, wherein the base steel frame assembly 49 is fixed to a target position through the embedded assembly 48, and the rotary support assembly 39 is fixedly arranged on the top of the base steel frame assembly 49.
Optionally, a locking mechanism 40 is mounted on top of the collapsed body 30 for locking the collapsed body 30.
Optionally, the collapse assembly further comprises a wire rope tensioning assembly 52 through which the wire rope 29 passes through the wire rope tensioning assembly 52 for installation connection thereto, and the tension of the wire rope 29 is controlled by the wire rope tensioning assembly 52.
Working principle:
1. realization of rapid collapse scene of collapse performance system
Firstly, the third reversing valve 23 is electrified, and the third cartridge valve 22 is controlled to be in an open state, so that a rod cavity of the hydraulic cylinder 26 is directly communicated with an oil tank, wherein the third cartridge valve 22 and a pipeline thereof are all large in diameter, and the requirement of oil absorption of the rod cavity of the hydraulic cylinder 26 is met. Then, the first reversing valve 18 is powered on, the first cartridge valve 17 is controlled to be in an open state, at this time, the eccentric moment of the collapse body 30 and the weight of pulleys and the like connected to the upper portion of the hydraulic cylinder 26 can meet the requirement of starting the hydraulic cylinder 26, as the collapse degree of the collapse body 30 increases, the acting force applied to the hydraulic cylinder 26 by the collapse body through the steel wire rope 29 is continuously increased, the collapse body 30 continuously accelerates and collapses, the fastest collapse speed of the collapse body 30 can be regulated through the throttle valve 19, and at the starting stage, if the starting force of the hydraulic cylinder 26 is insufficient to overcome the static friction force of the hydraulic cylinder piston and the piston rod at the sealing position, the second reversing valve 21 can be powered on for reversing, so that the third cartridge valve 22 is opened, the hydraulic cylinder is actively driven by the oil supply of the hydraulic pump 7, and when the hydraulic cylinder can be automatically lowered, the second reversing valve 21 is powered off, the third cartridge valve 22 is closed, and the active driving of the hydraulic cylinder is stopped.
The hydraulic control principle is that the third reversing valve 23 is powered off, the third cartridge valve 22 is controlled to be in a closed state, so that a rod cavity of the hydraulic cylinder 26 is disconnected from an oil tank, the rod cavity of the hydraulic cylinder loses oil absorption, and the piston rod of the hydraulic cylinder is forced to perform rapid speed reduction;
After a certain time delay, the first reversing valve 18 is deenergized, the first cartridge valve 17 is controlled to be in a closed state immediately, at the moment, an oil way of a rodless cavity of the hydraulic cylinder is cut off, and a piston rod of the hydraulic cylinder immediately stops running, so that a collapse body immediately stops through a steel wire rope, but at the moment, the impact pressure during stopping is reduced due to the extensibility of the steel wire rope, and the impact pressure of a hydraulic system is prevented from exceeding a limiting pressure;
Furthermore, if the mass of the collapse body is large, a plurality of groups of valves can be connected in parallel at the position of the first cartridge valve 17, when the collapse is required to be stopped, the valves connected in parallel can be closed one by one or in combination, so that the oil way of the rodless cavity of the hydraulic cylinder is gradually cut off, the impact is reduced, the collapse body 30 is quickly and stably stopped, and the first cartridge valve 17, the second cartridge valve 20 and the third cartridge valve 22, which correspond to the first reversing valve 18, the second reversing valve 21 and the third reversing valve 23 respectively, are all power-off and cut off the oil way, so that the safety and the effectiveness of the hydraulic system in controlling the collapse stop of the collapse body are ensured to a certain extent.
2. Electric slow rising reset and descent of collapse system
The hydraulic control principle of the lifting and resetting of the collapse system is that a motor 5 drives a hydraulic pump 7 to rotate through a pump sleeve coupler 6, the pressure of the system is selected to be higher, at the moment, when an electromagnet DT3 arranged on the electromagnetic reversing valve 10 is powered on, hydraulic pump outlet pressure oil is supplied to a rodless cavity of a hydraulic cylinder to push a piston rod of the hydraulic cylinder out, meanwhile, the oil with the rod cavity returns to an oil tank 1 through a one-way throttle valve 12, the lifting and resetting speed of the collapse system can be adjusted through the one-way throttle valve 12, when the collapse system is lifted and reset to a preset position, the electromagnet DT3 arranged on the electromagnetic reversing valve 10 is powered off, at the moment, the hydraulic cylinder stops running, and the position retention of the hydraulic cylinder is realized by utilizing the good sealing property of a hydraulic control one-way valve 11 under the stop state of the collapse system.
When the system is debugged or maintained, the hydraulic control principle of the electric falling of the collapse system is that the motor 5 drives the hydraulic pump 7 to rotate through the pump sleeve coupler 6, the lower system pressure set by the electromagnetic relief valve 9 is selected, at the moment, when the electromagnet DT4 of the electromagnetic reversing valve 10 is powered on, the hydraulic pump outlet pressure oil is supplied to the rod cavity of the hydraulic cylinder to push the piston rod of the hydraulic cylinder to retract, at the moment, the oil in the rodless cavity returns to the oil tank 1 through the balance valve 13 and the one-way throttle valve 12, the electric falling speed of the collapse system can be regulated through the one-way throttle valve 12, the balance valve 13 can stabilize the creeping phenomenon caused by gravity in the falling process, and when the collapse system is slowly fallen to a preset position, the electromagnet DT4 of the electromagnetic reversing valve 10 is powered off, at the moment, the hydraulic cylinder stops running, and thus the collapse system stops running through a steel wire rope
The above description is only of the preferred embodiments of the present application, but the protection scope of the present application is not limited thereto, any person skilled in the art should be able to make equivalent substitutions or modifications according to the technical solution and the modified concept thereof within the scope of the present application.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202422441110.3U CN223275897U (en) | 2024-10-09 | 2024-10-09 | A hydraulically controlled collapse mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202422441110.3U CN223275897U (en) | 2024-10-09 | 2024-10-09 | A hydraulically controlled collapse mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN223275897U true CN223275897U (en) | 2025-08-29 |
Family
ID=96838861
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202422441110.3U Active CN223275897U (en) | 2024-10-09 | 2024-10-09 | A hydraulically controlled collapse mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN223275897U (en) |
-
2024
- 2024-10-09 CN CN202422441110.3U patent/CN223275897U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH08502568A (en) | Reciprocating engine | |
| CN100572255C (en) | The opening-closing control mechanism of single rope grab | |
| CN107542725A (en) | single-acting reciprocating hydraulic actuator | |
| CN110056548A (en) | A kind of fracture manifold Quick Connect Kit hydraulic control system | |
| CN223275897U (en) | A hydraulically controlled collapse mechanism | |
| CN112879364A (en) | Energy-saving hydraulic system for hydraulic pumping unit | |
| CN111734706A (en) | One-way buffer valve | |
| CN100535439C (en) | Mechanical automatic control hydraulic driving pumping unit | |
| CN203176453U (en) | Slowly-closed device for check valve | |
| CN204096842U (en) | A kind of composite flooding hydraulic elevator system | |
| CN115303968A (en) | A kind of tower ceiling section power failure protection device and protection method | |
| CN204591232U (en) | Walking beam hydraulic-driven balance oil extractor | |
| CN106494961A (en) | A kind of deep-well lift system overtravel protection method and apparatus | |
| CN119267351A (en) | A hydraulically controlled efficient collapse performance system | |
| CN207161404U (en) | The master winch control system and rotary drilling rig of rotary drilling rig | |
| CN103979388A (en) | Room-free pit-free barrier-free elevator | |
| CN108759562A (en) | A kind of large-tonnage solid-rocket quickly plays perpendicular method and device | |
| CN207161425U (en) | single-acting reciprocating hydraulic actuator | |
| CN115163467B (en) | Reciprocating pump capable of timely supplementing oil | |
| CN104495586A (en) | Pneumatic telescopic elevator | |
| RU2577681C1 (en) | Hydraulic ram | |
| KR200170011Y1 (en) | Rotary 2-speed damping check valve | |
| RU2652596C1 (en) | Hydraulic drive of the manipulator boom load-lifting mechanism | |
| CN222836262U (en) | A high stability regulating valve assembly | |
| WO2021115025A1 (en) | Suspended unit hydraulic apparatus for mining |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant |