Static settlement monitoring alarm mechanism and radiation-proof lead plate door capable of realizing Internet of things
Technical Field
The invention relates to the technical field of static balance monitoring and alarming devices, in particular to a static settlement monitoring and alarming mechanism and an anti-radiation lead plate door capable of realizing networking, wherein the static settlement monitoring and alarming mechanism can be arranged in the anti-radiation lead plate door, can realize real-time monitoring of the settlement state of a lead plate in the anti-radiation lead plate door, and can realize the alarming purpose of sending an alarming signal when the settlement value of the lead plate reaches an early warning threshold value.
Background
Radiation protection lead doors (also referred to as lead radiation protection doors) are composed primarily of materials such as lead and steel. Lead is a heavy metal element, has good protective performance, and can effectively absorb and weaken electromagnetic waves and radioactive rays. The steel is a skeleton of the radiation-proof lead plate door, has higher strength and durability, and can ensure that the door is not easy to deform and damage in the use process.
The radiation-proof lead plate door is widely applied to the fields of hospitals, laboratories, nuclear facilities and the like. In hospitals, the radiation-proof lead plate door can effectively protect electromagnetic waves and radioactive rays generated by medical equipment and protect health of medical staff and patients. In the laboratory, the radiation protection lead plate door can protect the radioactive rays generated by experimental equipment, and the health and safety of experimental staff are protected. In nuclear facilities, the radiation-proof lead plate door can protect radioactive rays generated by nuclear reactors and related facilities, and the life safety of staff is guaranteed.
The manufacturing process of the radiation-proof lead plate door mainly comprises the steps of lead plate processing and steel skeleton welding. The lead plate has strict processing requirements, ensures thickness and size accuracy, and has smooth and flawless surface. Welding of steel skeletons requires a very exquisite process to ensure stability and strength of the skeletons. And finally, assembling the lead plate and the steel skeleton together to form the complete radiation-proof lead plate door. Referring to fig. 1 and 2, the steel skeleton includes a steel plate 200 and a frame 300, and the lead plate 100 is fixed between the steel plate 200 and the frame 300 to be maintained in a flat state.
Because the lead metal has high density, soft texture and high strength and hardness, and is fixed on the steel skeleton and installed in the protective door, the door body continuously bears the vibration action along with the repeated opening and closing actions of the radiation-proof lead plate door, so that the phenomenon that the lead plate is likely to statically subside relative to the steel skeleton easily occurs. The lead plate is supported by the steel skeleton, the sedimentation speed is relatively slow, and the sedimentation speed is also related to various factors such as the frequency of opening and closing the door, the installation condition and the like. Generally, when the sedimentation value of the lead plate is smaller, the normal play of the protection function of the radiation-proof lead plate door is not influenced. However, when the sedimentation value of the lead plate is relatively large, rays are diffracted from gaps generated between the lead plate and the door frame, and the risks of harm to human health and life safety exist. Because the lead plate is fixedly arranged in the radiation-proof lead plate door, the sedimentation value/sedimentation condition of the lead plate cannot be seen, and the door body is disassembled to check the sedimentation condition, so that the labor and time are wasted, and the lead plate door is easy to damage. Therefore, there is a need to design a mechanism capable of monitoring the sedimentation state of the lead plate in the radiation-proof lead plate door so as to send out an alarm signal in advance and intervene in time when the sedimentation value of the lead plate is adjacent to the risk position, thereby better ensuring the life health and safety of staff, patients and the like.
Disclosure of Invention
In order to achieve the above purpose, the invention provides the static settlement monitoring and alarming mechanism and the radiation-proof lead plate door capable of realizing real-time supervision of the settlement state of the lead plate in the radiation-proof lead plate door, which is beneficial to realizing timely and effective supervision of the settlement state of the lead plate, timely alarming when the settlement value of the lead plate is adjacent to a risk position, timely reminding maintenance personnel to intervene, and better preventing injury to life health and safety of people due to the settlement of the lead plate.
The technical scheme adopted by the invention for realizing the technical purpose is as follows.
A static settlement monitoring and alarming mechanism comprises an arm plate, a U-shaped piece, a roller rotating part and a strain sensing part.
The end plate of the U-shaped piece is provided with studs which can fix the U-shaped piece on the vertical surface of the arm plate.
The two arm parts of the U-shaped piece are respectively provided with an elastic part, and the elastic parts can elastically deform the arm parts, so that the free ends of the arm parts can have a reciprocating stroke space along the length direction of the arm parts.
The roller rotating part comprises a roller and a roller shaft, and the roller is sleeved on the roller shaft and can rotate relative to the roller shaft. The two ends of the roll shaft are respectively and fixedly matched with the two arm parts of the U-shaped piece, so that the roll shaft cannot rotate relative to the U-shaped piece. The roll surface of one side of the rotating roll, which is away from the U-shaped piece end plate, extends to the outer side of the free end surface of the arm part.
One end of the strain sensing part is fixedly connected to the roller surface of the roller, and the other end of the strain sensing part is fixedly connected to the vertical surface of the arm plate.
When the rotary roller rotates relative to the roller shaft, the strain sensing part can be caused to send out a strain sensing signal.
Optionally, the top of the rotating roller is formed with a groove.
One end of the substrate of the strain sensing part is provided with a first connecting part, and the other end is provided with a second connecting part.
Two shaft protrusions are formed on the first connection portion and match the shaft protrusions with the side walls of the groove, and one end of the base is connected to the rotating roller.
A strip-shaped plate is fixedly connected to the second connecting portion, a through hole is formed in the middle of the plate surface of the strip-shaped plate, a stud is arranged on the through hole, and the strip-shaped plate is fixed to the arm plate, so that the other end of the substrate and the arm plate are fixedly connected.
Preferably, a cavity is formed in the middle of the opposite surface of the second connecting part and the strip-shaped plate, the cap body of the stud matched with the strip-shaped plate is positioned in the cavity, and the length of the stud screwed into the arm plate can be regulated and controlled by screwing the cap body, so that the regulation and control purpose of the initial state of the strain sensing part is realized.
Optionally, a sink groove is formed on the inner wall of the rotating roller. A strip-shaped through hole extending along the axial direction is formed at one end of the sinking groove. Notches extending along the axial direction are respectively formed at the other end and the axial edge of the sinking groove.
The axial middle part of roller is the intermediate section, and the axial both ends of intermediate section are the intermediate section, and the free end department of intermediate section all is equipped with the prism section. The inner diameter of the rotating roller is consistent with the outer diameter of the middle section, and the outer diameter of the middle section is larger than that of the middle section.
The prism segments mate with the arms of the U-shaped member. After the roller is sleeved on the roller shaft, the strip-shaped through holes at least correspond to the middle section and enable the two notches to correspond to the two middle sections respectively.
The middle sections are respectively fixedly provided with a connecting block. The connecting block is provided with a protruding arm which extends out of the notch along the radial direction of the roll shaft. A gap extending in the circumferential direction is formed between the projecting arm and the opposite face of the notch. A channel is formed at the free end of the protruding arm.
One end of the strain sensing part is provided with a hook body, and the other end is provided with a pull rod part. Nuts are arranged on the two pull rods of the pull rod part.
The hook body is matched with the strip-shaped through hole on the rotary roller, so that one end of the strain sensing part is connected with the rotary roller.
The two pull rods of the pull rod part are correspondingly matched with the two protruding arms, and the middle parts of the pull rods are clamped in the channels. The nut arranged at the end part of the pull rod can be screwed to drive the pull rod to move relative to the channel so as to realize the purpose of regulating and controlling the initial state of the strain sensing part. Obviously, the outer diameter of the nut is greater than the width of the channel.
In the above scheme, one end of the strain sensing part is connected with the rotary roller to form a movable end, and the other end is connected with the roller shaft to form a fixed end. When the lead plate sinks to drive the rotary roller to rotate relative to the roller shaft, the strain sensing part is stretched to send out a sensing signal.
Optionally, a processor is also included. The processor comprises a communication module, can establish communication connection with an external supervision system, and the external supervision system comprises an alarm.
When the rotating roller rotates relative to the roller shaft, the strain sensing signal sent by the strain sensing part can be fed back to the processor, and the processor sends a corresponding instruction signal to an external supervision system after analysis and processing. The alarm can send out alarm prompts including sound or light after receiving alarm instructions. The alarm instruction is only one kind of instruction signal sent by the processor to the external supervision system.
Optionally, the external supervisory system contains a scrolling screen. After the processor analyzes and processes the strain sensing signals, the corresponding sedimentation value can be calculated, and the sedimentation value is transmitted to the supervisory system in the form of an instruction signal and displayed through a rolling screen.
The supervision system can be connected with a plurality of static settlement monitoring alarm mechanisms and can display a plurality of corresponding settlement values in a circulating way through the rolling screen. When the sedimentation value is analyzed by the processor to reach the early warning threshold value, the corresponding sedimentation value number can change color and/or flash on the rolling screen.
And an alarm lamp can be correspondingly arranged corresponding to each row of sedimentation values on the rolling screen. When the sedimentation value of a certain row on the rolling screen exceeds the early warning threshold value, the alarm lamp corresponding to the row sends out alarm sound and/or flash light so as to quickly find out the static sedimentation monitoring alarm mechanism which sends out alarm.
The external supervision system can be a remote supervision system connected through the internet of things communication network management.
An anti-radiation lead plate door capable of realizing Internet of things comprises a lead plate fixed on a steel skeleton and at least one static settlement monitoring and alarming mechanism. The steel skeleton comprises a frame formed by cross connection of a plurality of upright posts and a plurality of cross bars.
The arm plate is fixed on a certain cross bar positioned at the upper part of the frame and extends downwards along the vertical direction. The surface of the arm plate facing the lead plate is a vertical surface.
After the U-shaped piece is fixed on the arm plate, the elastic part can elastically deform to press the roller surface of the rotary roller on the plate surface of the lead plate.
Optionally, the static settlement monitoring alarm mechanism is connected with a processor. The processor comprises a communication module which can establish communication connection with the supervision system and the supervision system comprises an alarm.
When the lead plate is settled, the rotary roller can be driven to rotate relative to the roller shaft, so that the strain sensing part sends out a strain sensing signal. After the strain sensing signals are analyzed and processed by the processor, the processor can send instruction signals to the supervision system. The alarm can send out an alarm prompt after receiving the alarm instruction signal.
Optionally, the supervisory system contains a scrolling screen. After the processor analyzes and processes the strain sensing signals, the sedimentation value of the corresponding lead plate can be calculated, and the sedimentation value is transmitted to the supervision system in the form of an instruction signal and displayed through the rolling screen.
The supervision system can be connected with a plurality of radiation-proof lead plate doors provided with the static settlement monitoring and alarming mechanism, and a plurality of corresponding settlement values can be displayed in a circulating way through the rolling screen. When the processor analyzes that the sedimentation value reaches the (preset) early warning threshold value, the corresponding sedimentation value number changes color and/or flashes on the rolling screen.
Optionally, a warning lamp is respectively arranged corresponding to each row of sedimentation values on the rolling screen. When the sedimentation value of a certain row on the rolling screen exceeds the early warning threshold value, the alarm lamp corresponding to the row emits sound and/or flash alarm signals.
The static settlement monitoring alarm mechanism and the radiation-proof lead plate door capable of realizing the internet of things have the advantages that the settlement state of the lead plate in the radiation-proof lead plate door can be monitored in real time, the effective supervision on the settlement state of the lead plate can be realized, and an alarm can be sent out timely when the settlement value of the lead plate is close to a risk position (namely reaches an early warning threshold value), so that maintenance personnel can be reminded to intervene timely, and the damage to the life health and safety of people due to the settlement of the lead plate can be prevented better.
Drawings
Fig. 1 is a schematic front view of an assembly structure of a monitoring alarm mechanism and a radiation protection lead door (lead door housing not shown).
Fig. 2 is a schematic top view of the assembly of the monitoring alarm mechanism and the radiation protection lead door (lead door housing not shown).
Fig. 3 is a schematic top view of the U-shaped member.
Fig. 4 is a schematic plan view of the roller portion (first embodiment of the roller portion).
Fig. 5 is a schematic top view of the strain sensor.
Fig. 6 is a schematic diagram of an assembly structure of the U-shaped member, the roller portion, and the strain sensing portion.
Fig. 7 is a schematic plan view of a rotor in which a rotor portion is disposed in a second embodiment thereof.
FIG. 8 is a split schematic diagram of the strain sensing portion corresponding to the cross-sectional structure at A-A in FIG. 7.
Fig. 9 is a schematic plan view of a roll shaft of the roller portion disposed in the second embodiment thereof.
FIG. 10 is a split schematic diagram of the connection block correspondingly matched with the cross-sectional structure at B-B in FIG. 9.
Fig. 11 is a schematic sectional structure of a roller, a roller shaft, and a strain sensor assembly structure (second embodiment of the roller portion).
FIG. 12 is a schematic diagram of associating a monitoring alarm with a remote supervisory system.
In the drawing, a lead plate 100, a steel plate 200, a frame 300, a column 302, a cross rod 400, a monitoring alarm mechanism 10, a arm plate 20, a U-shaped piece 21, a end plate 22, an arm 23, an elastic part 24, a first stud 30, a roller rotating part 31, a roller rotating part 311, a slot 312, a strip through hole 313, a slot 32, a rubber layer 33, a roller shaft 34, a middle section 341, a middle section 342, a 343 prism section 35, a connecting block 351, a bottom plate 352, a protruding arm 353, a strain sensing part 40, a substrate 41, a cover plate 42, a first connecting part 43, a second connecting part 44, a 45 strip plate 46, a second stud 461, a cavity 47, a hook 48, a pull rod 49, a pull rod 491, a 492 nut 50, a processor 60 remote monitoring system 61 rolling screen, and a radiation-proof lead plate door 70 are arranged.
Detailed Description
The structures, proportions, sizes, etc. shown in the drawings are shown only in connection with the disclosure of the present invention, and are not intended to limit the scope of the invention, which is defined by the claims, but rather by the terms of modification, variation of proportions, or adjustment of sizes, without affecting the efficacy or achievement of the present invention, should be understood as falling within the scope of the present invention. While the terms such as "upper", "lower", "front", "rear", "middle", etc. are used in this specification for convenience of description, they are not intended to limit the scope of the invention, but rather to limit the scope of the invention, which is to be construed as being applicable to the present invention without substantial modification of the technical content.
A static settlement monitoring alarm mechanism as shown in fig. 1 to 11 includes an arm plate 10, a U-shaped member 20, a roller portion 30 and a strain sensing portion 40. At least one side of the arm plate 10 is formed as a vertical surface distributed in the vertical direction.
The end plate 21 of the U-shaped member 20 is provided with a first stud 24, by means of which first stud 24 the U-shaped member 20 can be fixed to a vertical surface on the arm plate 10. The two arm portions 22 of the U-shaped member 20 are each formed with a length of an elastic portion 23 and the elastic portion 23 is elastically deformed in the length direction of the arm portion 22 (the extending direction along the X-axis is shown), so that the arm portion 22 can exert an elastic force in the length direction of the arm portion 22 on a roller shaft 34 (the following section will be mentioned).
The roller portion 30 includes a roller 31 and a roller shaft 34. The roller 31 is sleeved on the roller shaft 34 and can rotate relative to the roller shaft 34. The two ends of the roll shaft 34 are respectively fixedly matched with the two arm parts 22 of the U-shaped piece 20, so that the roll shaft 34 cannot rotate relative to the U-shaped piece 20. The roller 31 has a side facing away from the end plate 21 of the U-shaped element 20 which extends beyond the free end face of the arm 22, i.e. the roller 31 has a left side facing beyond the left end face of the arm 22 in fig. 1,2 and 6.
A rubber layer 33 may be fixedly disposed on at least one side of the roller 31 facing away from the end plate 21 of the U-shaped member 20, so as to increase the contact friction between the roller surface and the lead plate 100 (see fig. 1 and 2), so as to enhance the transmission effect between the roller 31 and the lead plate 100, i.e. the transmission capability which can occur during the static friction sedimentation process.
One end of the strain sensor 40 is fixedly connected to the roller surface of the roller 31, and the other end is fixedly connected to the vertical surface of the arm plate 10.
When the rotation roller 31 rotates relative to the roller shaft 34, the strain sensor 40 is caused to generate/emit a strain sensing signal.
In the first embodiment, as shown in fig. 1 to 6, a groove 32 is formed at the top of the rotating roller 31. The left end of the substrate 41 of the strain sensing portion 40 is provided with a first connecting portion 43, and the right end is provided with a second connecting portion 44. The strain element is coated on the substrate 41 and is internally capped with a cover plate 42. The leads of the strain sensing portion 40 are connected to an external processor 50 (see fig. 12).
The first connection part 43 is formed with two axial protrusions, which are matched with the front and rear sidewalls of the groove 32, and fixedly connects the left end of the base 41 to the roller 31.
The second connecting portion 44 is fixedly connected with a strip-shaped plate 45. A through hole is formed in the middle of the plate surface of the strip-shaped plate 45, and a second stud 46 is disposed on the through hole, so that the strip-shaped plate 45 is fixed on the arm plate 10, and the other end of the base 41 is in a fixed connection relationship with the arm plate 10.
A cavity 47 is formed in the middle of the opposite surfaces of the second connection portion 44 and the strip-shaped plate 45, and a cap 461 of a second stud 46 matched with the strip-shaped plate 45 is positioned in the cavity 47, so that the length of the second stud 46 screwed into the arm plate 10 can be regulated by screwing the cap 461, and the purpose of regulating the initial state of the strain sensing portion 40 is achieved.
In the second embodiment, as shown in fig. 7 to 11, the roller portion 30 includes a roller 31 and a roller shaft 34. The inner wall of the roller 31 is formed with a sink 311, and the sink 311 extends along the inner circumferential surface of the roller 31 and penetrates to the axial both end portions of the roller 31.
Assuming that the roller 31 is rotated counterclockwise with respect to the roller shaft 34 and the sinking groove 311 is rotated to an upper right position as shown in fig. 11, a bar-shaped through hole 312 extending in the axial direction of the roller 31 is formed at an upper end of the sinking groove 311 and at a middle position in the axial direction. Notches 313 extending in the axial direction of the roller 31 are formed at the lower end of the sinking groove 311 at positions corresponding to the edges in the axial direction.
The axial middle part of the roll shaft 34 is a centering section 341, two axial ends of the centering section 341 are middle sections 342, and the free ends of the middle sections 342 are provided with prismatic sections 343. The inner diameter of the roller 31 corresponds to the outer diameter of the centering section 341, the outer diameter of the centering section 341 being greater than the outer diameter of the intermediate section 342. In this way, after the roller 31 is fitted around the roller shaft 34, a radial distance is formed between the inner peripheral surface of the roller 31 and the outer peripheral surface of the intermediate section 342.
The prismatic sections 343 mate with the arms 22 of the U-shaped member 20 such that the roller 34 cannot rotate relative to the U-shaped member 20. After the roller portion 30 is mounted on the U-shaped member 20, the bar-shaped through holes 312 are located at the top of the roller 31 as much as possible, and the notches 313 are provided so as to be distributed on one side in a direction (i.e., clockwise direction) opposite to a direction (counterclockwise direction in the drawing) in which the roller 31 rotates with respect to the roller shaft 34.
After the roller 31 is sleeved on the roller shaft 34, the strip-shaped through holes 312 at least correspond to the middle section 341 and enable the two notches 313 to respectively correspond to the two middle sections 342.
The middle sections 342 are fixedly provided with a connecting block 35 respectively. The connection block 35 includes a bottom plate 351 having an arc shape and a protruding arm 352 fixed at a middle portion of a plate surface of the bottom plate 351. A groove 353 is formed on the free end face of the protruding arm 352.
The bottom plate 351 is fixed to the outer wall of the middle section 342 by screws. The tab 352 extends radially of the roller 34/intermediate section 342 and extends the free end of the tab 352 to the outside of the slot 313. A space around the circumferential direction (counterclockwise direction) is formed between the protruding arm 352 and the opposite face of the notch 313, see a partial enlargement in fig. 11. A channel 353 is formed at the free end of the projecting arm 352 and has a depth along the radial direction of the intermediate section 342.
The base 41 of the strain sensor 40 has a hook 48 at one end and a pull rod 49 at the other end. Nuts 492 are disposed on both the tie rods 491 of the tie rod portion 49.
The hook 48 is matched with the strip-shaped through hole 312 on the roller 31, so that one end of the strain sensing portion 40 is connected with the roller 31. To facilitate the hooking of the hook 48 to the strip-shaped through hole 312, the width of the strip-shaped through hole 312 around the circumference is larger than the width of the hook 48, so that the hook 48 can be conveniently inserted into the strip-shaped through hole 312, and the hook portion of the hook 48 is connected with one side edge of the strip-shaped through hole 312 in a matching manner, as shown in fig. 11.
The two tie rods 491 of the tie rod portion 49 are correspondingly matched with the two protruding arms 352 and the tie rods 491 are inserted into the channel 353 from the radial ports of the channel 353. The middle part of the pull rod 491 is clamped in the channel 353, the end part of the pull rod 491 extends out of the channel 353, and the end part of the pull rod 491 is positioned at one side opposite to one end of the connecting base 41 on the pull rod part 49. The outer diameter of the nut 492 is greater than the width of the channel 353. The nut 492 disposed on the end of the tension rod 491 is screwed to cause the tension rod 491 to move relative to the channel 353, thereby regulating the initial state of the strain sensor 40. Further, screwing the nut 492 pulls the base 41 against the outer peripheral surface of the roller 31 while urging the hook 48 provided at one end of the base 41 into a fixed connection with the strip-shaped through hole 312.
In the second embodiment, one end of the strain sensor 40 is connected to the roller 31 to form a movable end, and the other end of the strain sensor 40 is connected to the roller shaft 34 (upper intermediate section 342) to form a fixed end. When the lead plate 100 is sunk to drive the rotary roller 31 to rotate relative to the roller shaft 34, the strain sensing portion 40 is stretched to generate a sensing signal, and the sensing signal is a signal which changes in real time and has no regularity in change.
In the embodiment, compared with the embodiment, the strain sensing portion 40 is almost attached to the outer wall/outer peripheral surface of the roller 31, but not in a suspended state, so that the remarkable adverse effect of gravity or vibration generated along the vertical direction on the strain signal can be avoided, and in addition, the maximum stroke amount of deformation of the strain sensing portion 40 can be controlled by virtue of the gap formed between the opposite surfaces of the protruding arm 352 and the notch 313 around the circumferential direction, so that the strain sensing portion 40 can be protected, and the situation that the strain sensing portion 40 is damaged due to excessive deformation can be effectively avoided.
As shown in fig. 12, a processor 50 is connected to a monitoring alarm 400 provided in the radiation protection lead door 70. The processor 50 may be built in the radiation proof lead door 70 or may be disposed outside the radiation proof lead door 70. The processor 50 contains a communication module and the communication module may have wireless communication capabilities. The processor 50 can be in communication with the external remote monitoring system 60 via the communication module, and the external remote monitoring system 60 comprises a rolling screen 61 and an alarm.
When the roller 31 rotates relative to the roller shaft 34, the strain sensing signal generated by the strain sensing portion 40 can be fed back to the processor 50, and the processor 50 performs analysis processing and then sends a corresponding command signal to an external monitoring system. The alarm can send out one or more alarm prompts comprising sound, flashing light and the like after receiving the alarm instruction.
After the processor 50 analyzes the strain sensor signal, a sedimentation value (which is an accumulated value that gradually increases) corresponding to the current sedimentation of the lead plate 100 can be calculated, and the sedimentation value is transmitted to the remote monitoring system 60 in the form of a command signal, and finally displayed through the scroll screen 61.
The remote monitoring system 60 can be connected to a plurality of radiation-proof lead doors 70 provided with the monitoring alarm mechanism 400, and can display the sedimentation status of the lead plates 100 on the plurality of radiation-proof lead doors 70 (for example, display the sedimentation value corresponding to the sedimentation of the lead plates 100) through the rolling screen 61 in a circulating way. When the sedimentation value of the lead plate 100 reaches the warning threshold, the corresponding sedimentation value (number) may change color and/or flash on the scroll screen 61.
In addition, as shown in fig. 12, a warning lamp may be provided corresponding to each row of sedimentation values on the scroll screen 61. When there is a case where the sedimentation value of a certain row on the scroll screen 61 exceeds the warning threshold value, the warning lamp corresponding to the row emits a warning sound and/or a flashing light.
As shown in fig. 1,2 and 12, the present patent further relates to a radiation-proof lead door capable of being networked with things, where the radiation-proof lead door 70 includes a lead plate 100 fixed on a steel skeleton and the above-mentioned static settlement monitoring and alarm mechanism (i.e. the illustrated monitoring and alarm mechanism 400, hereinafter referred to as the monitoring and alarm mechanism 400). The steel skeleton comprises a frame 300 formed by cross-connecting a plurality of upright posts 301 and a plurality of cross bars 302 and a steel plate 200. The illustrated cross bars 302 extend along an X-Y plane and a plurality of cross bars 302 are disposed in spaced relation within the X-Z vertical plane, the posts 301 extend along the X-Z vertical plane and a plurality of posts 301 are disposed in spaced relation within the Z-Y vertical plane. After the outer shell of the radiation-proof lead door 70 is arranged on the steel skeleton, the lead 100 is extruded by the steel plate 200 and the frame 300, and the surface of the lead is subjected to pressure force F.
The arm plate 10 of the monitoring alarm 400 is fixed to the cross bar 302 at the upper portion of the frame 300 and extends vertically downward. The side of the arm plate 10 facing the lead plate 100 is a vertical surface (i.e., a surface that establishes a connection with the first stud 24 and the second stud 46).
After the U-shaped member 20 is fixed to the arm plate 10, the elastic portion 23 is elastically deformed to press the left roller surface of the roller 31 against the plate surface of the lead plate 100. In the illustrated embodiment, a rubber layer 33 is fixedly provided on the roll surface at this point to increase the static driving capability existing between the lead plate 100 and the rotating roll 31.
In the solution shown in fig. 1, the monitoring and alarming mechanism 400 is disposed on the two layers of cross bars 302 at the upper part of the frame 300. In practice, the monitoring and warning mechanism 400 may be disposed only on the uppermost cross bar 302.
Only one monitoring and alarming mechanism 400 may be disposed on the same cross bar 302, or a plurality of monitoring and alarming mechanisms 400 may be disposed alternately along the length direction of the cross bar 302, as shown in fig. 2.
As shown in fig. 12, the monitoring alarm 400 is connected to an external processor 50, and the external processor 50 includes a communication module. The processor 50 having a communication module is understood to include both cases where the processor 50 itself has a communication module and where the processor 50 is connected to an external communication module.
With the aid of the communication module, the processor 50 can establish a communication connection with the remote supervisory system 60 through the internet of things communication gateway. The remote supervision system 60 comprises at least a scroll screen 61 and an alarm device.
When the lead plate 100 is subjected to the sedimentation operation, the sedimentation operation of the lead plate 100 can drive the matched rotary roller 31 to rotate relative to the roller shaft 34, so that the strain sensing part 40 generates a variable strain sensing signal. After the sent strain sensing signal is transmitted to the processor 50 and analyzed and processed by the processor 50, the processor 50 sends command signals (including various command signals such as analysis result command signals and alarm command signals) to the remote monitoring system 60.
The alarm device can send out alarm prompt signals such as sound and/or flashing after receiving the alarm command signals.
After the processor 50 analyzes the strain sensor signal, a (cumulative) sedimentation value corresponding to the lead plate 100 can be calculated, and the analysis result (in the form of an instruction signal) is transmitted to the remote monitoring system 60, and finally updated and displayed through the scroll screen 61.
The remote supervisory system 60 can access a plurality of radiation-proof lead doors 70 on which the monitoring alarm mechanism 400 is mounted, and can cyclically display a corresponding plurality of sedimentation values through the rolling screen 61.
When the processor 50 analyzes that the sedimentation value of the lead plate 100 with the radiation-proof lead plate door 70 is accumulated to reach/exceed the preset early warning threshold value, the sedimentation value number corresponding to the radiation-proof lead plate door 70 changes color and/or flashes on the rolling screen 61 to give an alarm prompt.
A warning lamp is provided corresponding to each row of sedimentation values on the rolling screen 61. When the sedimentation value of a certain row on the rolling screen 61 exceeds the early warning threshold value, the alarm lamp corresponding to the row sends out alarm sound and/or flash alarm prompt.
The above embodiments are merely illustrative of the principles of the present invention and its effectiveness, and are not intended to limit the invention. The present invention is capable of modifications in the foregoing embodiments, as obvious to those skilled in the art, without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications and variations of the invention be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.