Alarm mechanism, lead plate oxidation degree monitoring device and anti-radiation lead plate door

Abstract

The invention belongs to the field of alarm devices, and particularly relates to an alarm mechanism, a lead plate oxidation degree monitoring device and an anti-radiation lead plate door. The alarm mechanism comprises a roller unit, a sliding plate, a rocker, a detection unit and a driving unit. The roller units are arranged on the left side of the sliding plate in a front-back spaced mode and comprise U-shaped frames matched with rollers in a pivoted mode, guide parts and elastic pushing parts, the guide parts and the elastic pushing parts are arranged on the U-shaped frames and matched with the sliding plate, and the U-shaped frames can move in the vertical direction relative to the sliding plate. The detection units are arranged on the right side of the sliding plate, are arranged in rows front and back, are opposite to the roller units left and right, and comprise sensing parts and integrated circuit parts. The left end of the rocker is matched with the U-shaped frame, the near left end of the rocker is matched with the sliding plate in a pivot mode, the right end of the rocker is connected with the detection unit and can rotate around the pivot in the vertical plane, and the right end can promote the sensing part to generate physical quantity changes. The driving unit can drive the sliding plate to move leftwards and rightwards. The anti-radiation lead plate door can effectively monitor the oxidation degree of the lead plate and reduce the frequency of dismounting the anti-radiation lead plate door.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of early warning devices, in particular to an alarm mechanism, a lead plate oxidation degree monitoring device and a radiation-proof lead plate door. BACKGROUND

[0002] Lead plates are often used in radiation-proof products due to their special physical properties. The radiation-proof plate material used in radiation protection doors is mostly lead plates and their alloys. The manufacture of radiation-proof lead plate doors mainly includes the processing of lead plates and the fixed installation between the lead plates and the supporting plates, the pressing frames, etc. The processing of lead plates requires very strict accuracy of thickness and size, and the surface should be flat and free of significant defects. After the lead plates are assembled with the supporting plates, the pressing frames, etc. to form a complete radiation-proof lead plate door, the lead plates are clamped between the supporting plates and the pressing frames and are kept flat between the supporting plates and the pressing frames.

[0003] During use, due to the defects in the sealing structure of the radiation-proof lead plate door, the lead plates fixed inside are often affected by external factors such as air humidity, acidity and alkalinity, and are subjected to oxidation and corrosion. Oxidation spots often form on the surface of the lead plates, especially at the edge positions, which changes the physical properties of the surface of the lead plates and affects the static friction contact state between the lead plates and the supporting plates, the pressing frames, etc., and aggravates the tendency of the lead plates to sink. At the same time, due to the irregularity of the process and degree of oxidation of the lead plates, it is not easy to grasp the maintenance frequency of the appropriate interval, and it is easy to cause the lead plates to produce significant sinking too early due to excessive oxidation of the surface, forming a safety risk.

[0004] Currently, in order to ensure the radiation-proof effect of the radiation-proof lead plate door and ensure the safety of its use, the frequency of checking the sinking state of the lead plates has to be increased, so the radiation-proof lead plate door has to be frequently disassembled to check the oxidation state and sinking state of the lead plates, etc. This not only wastes labor and time, but also easily accelerates the deterioration of the sealing property of the radiation-proof lead plate door due to frequent disassembly of the protective door, and further easily accelerates and aggravates the oxidation degree of the lead plates. SUMMARY

[0005] In order to reduce the frequency of disassembling the radiation-proof lead plate door, the present application provides an alarm mechanism, a lead plate oxidation degree monitoring device and a radiation-proof lead plate door, which can monitor and judge the oxidation degree of the lead plates by detecting the concave-convex state of the oxidation layer on the surface of the lead plates without disassembling the radiation-proof lead plate door, so as to reduce the frequency of disassembling the radiation-proof lead plate door.

[0006] The technical solution adopted by the present application to solve its technical problems is: An alarm mechanism, comprising a plurality of roller units, a sliding plate, a rocker matched with each roller unit, a detection unit and a driving unit, and a control unit.

[0007] The roller units are arranged alternately in front and back, and each includes a U-shaped frame matched with a roller pivot, and a guide member and an elastic pushing member arranged on the top of the U-shaped frame.

[0008] The roller units are arranged on the left side of the slide plate, and the detection units are arranged on the right side of the slide plate, and each roller unit and each detection unit are arranged opposite to each other in left and right directions, i.e. one-to-one opposite arrangement in left and right directions.

[0009] Each roller unit is matched with the slide plate through the guide member and the elastic pushing member arranged on the U-shaped frame, so that each roller unit can move reciprocally in a vertical direction relative to the slide plate, and can be connected with the slide plate together and move synchronously with the slide plate in a plane.

[0010] The left end of each rocker is matched with the U-shaped frame, the near left end is matched with the slide plate pivotally, and the right end is matched with the detection unit, so that the rocker can rotate around the pivot in a vertical plane with the movement of the roller unit / U-shaped frame.

[0011] The detection unit includes a sensing part and an integrated circuit part. When the right end of the rocker moves in a vertical direction, the sensing part on the detection unit corresponding to the rocker can change the physical quantity, and the sensing part can feed back the sensing signal to the integrated circuit part in real time. The integrated circuit part can process the sensing signal.

[0012] The driving unit is matched with the upper part of the slide plate, and can drive the slide plate loaded with the roller unit, the rocker and the detection unit to move reciprocally in left and right directions synchronously. The control unit is connected with the driving unit, and can control the driving unit to drive the slide plate to move.

[0013] Optionally, a protruding column is arranged on the top of the U-shaped frame, and the elastic pushing member is arranged on the protruding column.

[0014] The elastic pushing member includes a spring and a light column body formed on the top surface of the protruding column and extending vertically upward.

[0015] The spring is sleeved on the light column body, and the lower end of the spring is matched with the top surface of the protruding column, the upper end of the spring is matched with the lower end surface of the slide plate, and the spring can be deformed in extension and contraction during the movement of the roller unit in a vertical direction.

[0016] Optionally, a spherical part is formed on the left end of the rocker, and a spherical groove is formed on the protruding column and a through hole extending in left and right directions is formed on the bottom surface of the spherical groove.

[0017] The right end of the rocker extends to the right after passing through the through hole, so that the spherical part is matched with the spherical groove in the form of surface contact.

[0018] Optionally, a plurality of end blocks are formed on the left side of the lower end surface of the slide plate, and are arranged alternately in front and back directions, and are arranged in left and right directions opposite to the plurality of detection units one by one.

[0019] On the lower end surface of the end block, a plurality of stepped holes are formed on the left end side, and a plurality of pivot arms are formed on the right end side.

[0020] The upper end of the spring is inserted into the port of the stepped hole, and the light column body is inserted into the stepped hole.

[0021] The proximal left end of the rocker is matched with the pivot arm, so that the rocker can rotate in the vertical plane relative to the slide plate.

[0022] Optionally, the detection unit includes a sensor body fixedly arranged at the right end of the slide plate, and a movable part fixedly arranged at the right end of the rocker. The movable part is matched with the sensor body in association, and can cause the sensor body to change in physical quantity during movement of the right end of the rocker, so as to generate a sensing signal.

[0023] Optionally, the sensor of the detection unit is a capacitive sensor, and the sensor body is a capacitive sensor body.

[0024] The polar plate part of the capacitive sensor extends vertically downward relative to the capacitive sensor body; both polar plates of the polar plate part are formed into trapezoidal plates with short sides downward, and the two polar plates are opposite in front and back directions.

[0025] The movable part is a rectangular plate body provided with polar plate medium, and extends to between the two polar plates of the polar plate part.

[0026] Optionally, on the upper end surface of the slide plate, track structures extending in left and right directions are formed on the front and back sides, and a rim block protruding upward is formed at the center. The track structures are matched with the lead plate door, and the slide plate can move in left and right directions relative to the lead plate door.

[0027] The driving unit includes a lead screw lever matched with the rim block and a motor unit matched with the lead screw lever.

[0028] Based on the above-mentioned alarm mechanism, a lead plate oxidation degree monitoring device is provided, so that the wheel surface of the roller can be in contact with the surface of the lead plate, and can move left and right relative to the lead plate in the plane.

[0029] During movement of the roller relative to the lead plate in the left and right directions, the wheel surface of the roller can be in contact with the outer exposed surface of the lead plate. In other words, between the wheel surface of the roller and the surface of the lead plate, there is always an interaction and an approximately vertical force, i.e. an interaction pressure. With the change of the concave-convex condition of the oxidation layer on the lead plate, the contact height between the roller and the lead plate changes, so that the U-shaped frame moves in the vertical direction, and further causes the rocking motion of the rocker.

[0030] A radiation protection lead plate door based on the above-mentioned alarm mechanism comprises a support plate capable of being fixedly connected with a pressing frame and clamping the lead plate therebetween, and the lead plate is horizontally arranged. The pressing frame comprises a plurality of horizontal beams and a plurality of vertical beams arranged in a cross manner. The inner side of the horizontal beam arranged at the front side and the rear side is formed with a front or right extending edge plate. A vertical spacing is formed between the edge plate and the lead plate, and a left and right extending strip-shaped through hole is formed on the edge plate.

[0031] The number of alarm mechanisms arranged on each side of the edge plate is multiple, and the multiple alarm mechanisms on each side are arranged in a left and right direction in a link manner. The sliding plate in each alarm mechanism is matched with the lower end surface of the edge plate through a sliding rail structure arranged in a left and right direction, and a transmission component corresponding to the strip-shaped through hole is arranged on the sliding plate. The driving unit is fixedly arranged on the upper end surface of the edge plate, can be matched with the transmission component, and can drive the sliding plate to move relative to the horizontal beam in the left and right direction.

[0032] Optionally, the driving unit is arranged above the vertical beam. The vertical beam is formed with a left and right through cavity, and when the sliding plate carrying the rocker and the detection unit approaches the vertical beam, the rocker and the detection unit can be inserted into the cavity.

[0033] The alarm mechanism of the present application has the advantages that: the alarm mechanism is simple in structure, the roller in contact with the surface of the lead plate is arranged, and the roller is intermittently driven to move relative to the lead plate, so that the roller and the surface of the lead plate maintain good contact during relative movement, the phenomenon of the roller bumping is caused by the concave-convex change of the surface of the lead plate after oxidation, the vibration signal related to the parameters such as the concave-convex condition and / or distribution condition of the oxidation spot is obtained, and the oxidation degree / flatness of the surface of the lead plate is analyzed and judged according to the change of the vibration signal, which helps to monitor and evaluate the oxidation degree of the surface of the lead plate and realize the purpose of timely warning.

[0034] In addition, the radiation protection lead plate door of the present application can monitor the flatness of the surface of the lead plate in the radiation protection lead plate door in the daily use state, so as to obtain the real-time situation of the oxidation degree of the surface of the lead plate, and promote the real-time monitoring and timely warning of the oxidation degree of the lead plate. Therefore, the present application helps to realize the evaluation of the oxidation degree of the lead plate by analyzing and obtaining the vibration data parameters or waveform diagram capable of representing the concave-convex condition and / or distribution condition of the oxidation spot formed on the surface of the lead plate, and provides warning support, which helps to significantly reduce the number of times of disassembling the radiation protection lead plate door for checking the settlement condition of the lead plate in the radiation protection lead plate door. BRIEF DESCRIPTION OF DRAWINGS

[0035] Figure 1 It is a sectional structure schematic diagram of the present application.

[0036] Figure 2 For Figure 1 Local enlarged structure schematic view at A in the figure.

[0037] Figure 3 For Figure 2 In the structure shown, the state schematic diagram when the rocker rotates with the action of the roller unit.

[0038] Figure 4 The schematic diagram of the bottom structure of the slide plate.

[0039] Figure 5 The schematic diagram of the top structure when the roller unit matches the rocker.

[0040] Figure 6 The schematic diagram of the application laid in the use scene.

[0041] In the figure: 100 lead plate; 200 support plate, 201 honeycomb support plate; 300 pressure frame, 301 transverse beam, 3011 straight slot, 302 longitudinal beam, 3021 cavity; 10 roller unit, 11 roller, 12 U-shaped frame, 121 column, 122 spring, 123 light column; 20 slide plate, 21 end block, 211 pivot arm, 212 multi-stage counterbore, 22 rim block; 30 rocker, 31 movable part, 32 pivot part; 40 detection unit, 41 capacitor sensor body, 42 plate part; 50 screw lever; 60 motor unit. DETAILED DESCRIPTION

[0042] The structure, proportion, size, etc. shown in the drawings of the specification are only used to cooperate with the content disclosed in the specification for understanding and reading by those skilled in the art, and do not define the limiting conditions for the implementation of the application, so they do not have technical substantive significance. Any modification of the structure, change of the proportional relationship or adjustment of the size, without affecting the effect and purpose that the application can produce, should still fall within the scope of the technical content disclosed by the application. At the same time, the terms such as "upper", "lower", "front", "rear", "intermediate" and the like in the specification are only for the convenience of clear description, and are not used to limit the scope of the application. The change or adjustment of the relative relationship, without substantial change of the technical content, is also considered as the implementation scope of the application.

[0043] As Figures 1 to 6The alarm mechanism comprises seven roller units 10, a slide plate 20, seven corresponding matching rocker arms 30, detection units 40 and driving units, and a control unit. The number of the rocker arms 30, the detection units 40 and the driving units is consistent, all being seven. The roller units 10 can be simultaneously matched with the rocker arms 30, the detection units 40 and the driving units one by one.

[0044] The roller units 10 are arranged alternately in front and back, and each comprises a U-shaped frame 12 pivotally matched with a roller 11, and a guide part and an elastic pushing part arranged on the top of the U-shaped frame 12.

[0045] The roller units 10 are arranged on the left side of the lower end surface of the slide plate 20, and the detection units 40 are arranged on the right side of the lower end surface of the slide plate 20, so that the seven roller units 10 and the seven detection units 40 are arranged left and right one by one.

[0046] The roller units 10 are matched with the slide plate 20 through the guide part and the elastic pushing part arranged on the U-shaped frame 12, so that the roller units 10 can move reciprocally along the vertical direction relative to the slide plate 20, and the maximum moving stroke is generally controlled within 10 mm, preferably within 5 mm.

[0047] A protruding column 121 can be arranged on the top of the U-shaped frame 12, and the elastic pushing part is arranged on the protruding column 121. The elastic pushing part comprises a spring 122 and a light column body 123 formed on the top of the protruding column 121 and extending vertically upward.

[0048] The spring 122 is sleeved on the light column body 123, and the lower end of the spring 122 is in contact with the top surface of the protruding column 121, and the upper end is in contact with the lower end surface of the slide plate 20, so that the spring 122 can be deformed in extension and contraction during the movement of the roller unit 10 along the vertical direction.

[0049] The left end of the rocker 30 is matched with the U-shaped frame 12, the near left end is pivotally matched with the slide plate 20, and the right end is matched with the detection unit 40, so that the rocker 30 can rotate in the vertical plane around the pivot position with the vertical movement of the roller unit 10 / U-shaped frame 12. The pivotally matched position of the rocker 30 with the slide plate 20 is between the matched position of the rocker 30 with the U-shaped frame 12 and the matched position of the rocker 30 with the detection unit 40, so that the rocker 30 is formed as a lever structure, the position on the left end side is amplified on the right end side, and the sensitivity of the detection of the vertical movement of the roller unit 10 / U-shaped frame 12 can be improved, that is, the movement of the roller unit 10 / U-shaped frame 12 in the vertical direction can be amplified and fed back to the detection unit 40.

[0050] The detection unit 40 includes a sensing part and an integrated circuit part (or a chip part, a signal processing part).

[0051] When the right end of the rocker 30 moves in the vertical direction, the sensing part on the detection unit 40 corresponding to the matched position can change the physical quantity, and the sensing part can feed back the sensing signal to the integrated circuit part in real time. The integrated circuit part can process the sensing signal.

[0052] The detection unit 40 includes a sensor body fixedly arranged at the right end of the slide plate 20 and a movable part 31 fixedly arranged at the right end of the rocker 30. The movable part 31 is matched with the sensor body in association, and can change the physical quantity of the sensor body and generate the sensing signal during the movement of the right end of the rocker 30 (in the vertical plane).

[0053] The movable part 31 is a part / accessory of the sensing part. The sensor body includes the main body of the sensing part and the integrated circuit part. The integrated circuit part includes one or more of a processing module, a communication module, a power module, a programming module, and an alarm module.

[0054] The driving unit is matched with the upper part of the slide plate 20, and can drive the slide plate 20 to move back and forth in the left-right direction synchronously with the roller unit 10, the rocker 30, and the detection unit 40.

[0055] The control unit is connected with the driving unit, and can control the driving unit to move the slide plate 20 (according to the set requirements / programs).

[0056] The roller units 10 are arranged in rows in front and back, and the wheel leads of the rollers 11 can cover the surface during movement in the left-right direction. Because the components and structures in the present application can achieve narrow design in the front-back direction, the thickness (axial dimension) of the rollers 11 can be reduced, and the rollers 11 in two adjacent roller units 10 can be as close as possible, the axial distance between the two adjacent rollers 11 can be controlled within 5 mm, and the minimum can be controlled within 2 mm, so the tightness of the roller 11 covering surface is relatively good, and multiple rows arranged in left and right intervals are not required, which helps to make the technical solution of the present application indirect and reliable.

[0057] A plurality of end blocks 21 are arranged in front and back on the left side of the lower end surface of the slide plate 20, and a plurality of (seven) end blocks 21 are arranged in front and back on the left side of the lower end surface of the slide plate 20.

[0058] A plurality of stepped holes 212 are formed on the left end side of the lower end surface of the end block 21, and a pivot arm 211 is formed on the right end side. The upper end of the spring 122 extends into the lower end of the stepped hole 212, and the light column 123 is inserted into the inner end side of the stepped hole 212, and the outer periphery of the light column 123 is matched with the inner end side of the stepped hole 212 in the form of surface contact, and the light column 123 can slide / move in the vertical direction relative to the stepped hole 212. The guide component can include two vertically upward extending arm, and the two arms are arranged in front and back. The light column 123 can be arranged between the two arms. A pair of type holes are arranged on the slide plate 20 corresponding to the arms, and the two arms are inserted into the two type holes one by one to establish a surface contact matching relationship, so that the upper part of the roller unit 10 or the U-shaped frame 12 can be firmly connected with the slide plate 20, and can move in the vertical direction and synchronously move in the left-right direction.

[0059] The proximal left end of the rocker 30 is matched with the pivot arm 211, so that the rocker 30 can rotate in the vertical plane relative to the slide plate 20. Specifically, a pivot part 32 is formed on the proximal left end side of the rocker 30, and the pivot part 32 is matched with the pivot arm 211. The pivot arm 211 includes two arm plates arranged in front and back, and the two ends of the pivot part 32 are matched with the two arm plates respectively, so that the rocker 30 can rotate in the vertical plane (around the front-back extending axis) relative to the pivot arm 211.

[0060] As Figures 1 to 5As shown, the sensor of the detection unit 40 is a capacitive sensor, and the sensor body is a capacitive sensor body 41. The polar plate part 42 of the capacitive sensor extends vertically downward relative to the capacitive sensor body 41. Both polar plates of the polar plate part 42 are formed into trapezoidal plates with the short side facing downward, and the two polar plates are opposite each other. The movable part 31 is a rectangular plate body provided with polar plate medium, and extends between the two polar plates of the polar plate part 42. The polar plate medium is distributed on the entire surface of the rectangular plate body.

[0061] The length (dimension in the left-right direction) of the movable part 31 is greater than the maximum width (dimension in the left-right direction) of the polar plate, so that both ends of the movable part 31 can remain partially exposed outside the two polar plates, as shown in Figure 2 、 Figure 3 When the rocker 30 rotates, at least one end of the movable part 31 can be partially exposed outside the two polar plates. Obviously, in the illustrated manner, the rocker 30 rotates downward, and the portion of the left end of the movable part 31 exposed outside the polar plate increases in size. Because the relative area between the two polar plates decreases as it moves downward, the portion / area / volume of the polar plate medium on the movable part 31 corresponding to the space between the two polar plates gradually decreases as the rocker 30 rotates downward.

[0062] By using a capacitive sensor and matching the movable part 31 to form a non-contact association, the interference caused by the movement of the right end of the rocker 30 can be reduced, the sensitivity of the vertical movement of the roller unit 10 fed back by the rocker 30 can be ensured / improved, and the detection sensitivity of the detection unit 40 can be improved. By forming the polar plates of the polar plate part 42 into trapezoidal plates, the volume of the polar plate medium corresponding to the space between the two polar plates can be significantly changed, and the detection sensitivity and accuracy can be further ensured.

[0063] In addition, the series of structural features of the capacitive sensor combined with the rocker 30 formed as a lever structure (with the fulcrum significantly left-biased) can further improve and ensure the detection sensitivity of the detection unit 40, and help to ensure the accuracy of the surface oxide layer thickness and the concave-convex variation of the lead plate 100, and help to better achieve accurate monitoring of the oxidation degree of the lead plate 100, with better reliability.

[0064] On the upper end surface of the slide plate 20, track structures extending left and right are formed on the front and rear sides, and a rim block 22 protruding upward is formed in the middle.

[0065] The driving unit includes a screw lever 50 matched with the edge block 22 and a motor unit 60 matched with the screw lever 50. When the motor unit 60 drives the screw lever 50 to rotate, the slide plate 20 can be driven to slide in the left-right direction, forming a screw sliding block / screw sliding plate transmission mechanism. The track structure provided on the slide plate 20 is matched with the horizontal truss 301 in the pressing frame 300 of the radiation-proof lead plate door, so that the slide plate 20 can move relative to the pressing frame 300 in the left-right direction under the driving of the motor unit 60, achieving the action purpose that the roller 11 can move relative to the lead plate 100.

[0066] To improve the free movement degree between the right end of the rocker 30 and the U-shaped frame 12 (i.e. the protruding column 121), inhibit the adverse effect of the matching structure of the two on the rotation of the rocker 30 in the vertical plane, and reduce the stress on the rocker 30 during action, a spherical part can be formed at the left end of the rocker 30, and a spherical groove is correspondingly formed on the protruding column 121, and a through hole extending in the left-right direction is formed on the bottom surface of the spherical groove. The right end of the rocker 30 can continue to extend to the right after passing through the through hole. The spherical part and the spherical groove can be matched in the form of surface contact. In this way, the diameter of the rocker 30 can be reduced, the service life of the rocker 30 can be ensured, and the rocker 30 can be prevented from being broken at the left end side.

[0067] As shown in Figure 1 , Figure 2 , Figure 6 The radiation-proof lead plate door based on the above-mentioned alarm mechanism includes a supporting plate 200 capable of horizontally supporting the lead plate 100 and fixedly connected with the pressing frame 300, so as to fix the lead plate 100 in the middle. The pressing frame 300 includes a plurality of horizontal trusses 301 and a plurality of vertical trusses 302 arranged in a cross manner. Among them, the horizontal trusses 301 are arranged in multiple in the front-rear direction (Y direction in Figure 6 ) and one is arranged at the most front side and the most rear side, so that the horizontal trusses 301 all extend in the left-right direction (X direction in Figure 6 ). The vertical trusses 302 are arranged in multiple in the left-right direction and one is arranged at the most left side and the most right side.

[0068] The width (front-rear dimension) of the transverse beams 301 arranged at the frontmost and rearmost sides can be greater than that of the other transverse beams 301 arranged in the middle. In addition, the inner side (i.e. the rear side) of the transverse beam 301 arranged at the frontmost side is formed with a rearwardly extending flange plate, and the inner side (i.e. the front side) of the transverse beam 301 arranged at the rearmost side is formed with a forwardly extending flange plate. A vertical spacing is formed between the lower end surface of the flange plate and the outer surface of the lead plate 100, and a left-right extending strip-shaped through hole is formed in the flange plate.

[0069] A straight groove 3011 is formed in the upper end surface of the transverse beam 301 and extends in the left-right direction, and the straight groove 3011 corresponds to the upper side of the flange plate.

[0070] The alarm mechanism corresponds to the flange plate on both sides, and the number of alarm mechanisms arranged on each side of the flange plate is four, and the four alarm mechanisms on each side are distributed in the left-right direction.

[0071] The slide plate 20 in each alarm mechanism corresponds to the lower end surface of the flange plate through a slide rail structure arranged in the left-right direction, and a transmission component (e.g. a flange block 22) corresponding to the strip-shaped through hole is arranged on the slide plate 20. The drive unit is fixedly arranged on the upper end surface of the flange plate, can correspond to the transmission component, and can drive the slide plate 20 to move in the left-right direction relative to the transverse beam 301 or the flange plate.

[0072] The flange block 22 arranged on the upper end surface of the slide plate 20 can extend upward through the strip-shaped through hole to the straight groove 3011 formed in the upper end surface of the transverse beam 301. The lead screw lever 50 and the motor unit 60 (including a driving motor) in the drive unit are arranged in the straight groove 3011, the lead screw lever 50 corresponds to the flange block 22, and can form a lead screw and slide block transmission mechanism with the slide plate 20, and can drive the slide plate 20 to reciprocate in the left-right direction under the drive of the driving motor. A support arm supporting both ends of the lead screw lever 50 is arranged on the bottom surface of the straight groove 3011, and a shaft coupling is arranged between the lead screw lever 50 and the driving motor.

[0073] The drive unit (driving motor) is arranged above the longitudinal beam 302, i.e. the drive unit is physically and directly connected to the transverse beam 301, so that the driving motor is indirectly arranged above the longitudinal beam 302.

[0074] A left-right extending cavity 3021 is formed in the longitudinal beam 302. Referring to Figure 1The slide plate 20 carries the rocker 30 and the detection unit 40 (moving to the right) close to the longitudinal beam 302, and the rocker 30 and the detection unit 40 can both extend into the cavity 3021, so that the roller 11 can be close to the surface of the lead plate 100 near the longitudinal beam 302.

[0075] The honeycomb support plate 201 is arranged between the lead plate 100 and the support plate 200. By arranging the honeycomb support plate 201, the flatness of the lead plate 100 fixedly arranged on the support plate 200 can be improved, and the lead plate 100, the support plate 200 and the pressing frame 300 are combined to form a firm and reliable whole.

[0076] The technical scheme of the present application can cause the roller unit 10 to reciprocate in the vertical direction in the process of the wheel surface of the roller 11 and the body surface of the lead plate 100 and the oxidation spots formed on the surface of the lead plate 100 alternatingly contacting each other, and form a motion state of moving left and right in the horizontal direction and moving up and down in the vertical direction, which can promote the rocker 30 to continuously swing in the vertical plane, change the height position of the movable part 31 between the pole plate parts 42, promote the detection unit 40 to continuously change the physical quantity, and further change the sensing signal of the capacitor sensor body 41. The integrated circuit part analyzes and processes the received sensing signal to obtain the real-time frequency and / or real-time amplitude (including the fluctuation value and / or waveform diagram of the frequency and amplitude) reflecting the motion state of the roller unit 10 (vertical), and compares the real-time frequency and / or real-time amplitude with the preset frequency warning threshold (interval) and / or amplitude warning threshold (interval), and determines whether to issue a warning according to the comparison result. Therefore, in the comparison of the frequency and amplitude, the comparison of some discrete values can be included, and the coincidence degree comparison of the waveform diagram can also be included.

[0077] The above embodiments only exemplarily illustrate the principles and effects of the present application, and are not used to limit the present application. The present application can be improved in many aspects without departing from the general idea, and those skilled in the art can modify or change the above embodiments without departing from the spirit and scope of the present application. Therefore, all equivalent modifications or changes made by those skilled in the art without departing from the spirit and technical idea of the present application should be covered by the claims of the present application.

Claims

1. An alarm mechanism, characterized by: The application relates to a rolling wheel unit (10), a sliding plate (20), a rocker (30), a detection unit (40) and a driving unit. The rolling wheel unit (10) is arranged on the left side of the sliding plate (20) and is arranged in front of and behind each other; the rolling wheel unit (10) comprises a U-shaped frame (12) which is pivotally matched with a rolling wheel (11) arranged on the U-shaped frame (12), a guide component and an elastic pushing component arranged on the top of the U-shaped frame (12), and the rolling wheel unit (10) is matched with the sliding plate (20) through the guide component and the elastic pushing component arranged on the U-shaped frame (12), so that the rolling wheel unit (10) can move along the vertical direction relative to the sliding plate (20) respectively. The detection unit (40) is arranged on the right side of the sliding plate (20) and is arranged in a row in front of and behind each other, and is arranged opposite to each rolling wheel unit (10) respectively, and each detection unit (40) comprises a sensing part and an integrated circuit part. The left end of the rocker (30) is matched with the U-shaped frame (12), the near-left end is pivotally matched with the sliding plate (20), and the right end is matched with the detection unit (40), so that the rocker (30) can rotate around the pivot in the vertical plane with the movement of the rolling wheel unit (10), and when the right end moves, the corresponding matched sensing part can be caused to change in physical quantity, so that the sensing part can feed back the sensing signal to the integrated circuit part in real time. The driving unit is matched with the sliding plate (20) and can drive the sliding plate (20) to move along the left-right direction synchronously with the rolling wheel unit (10), the rocker (30) and the detection unit (40).

2. The alerting mechanism of claim 1, wherein: A protruding column (121) is arranged on the top of the U-shaped frame (12), and the elastic pushing component is arranged on the protruding column (121). The elastic pushing component comprises a spring (122) and a light column body (123) arranged on the top of the protruding column (121) and extending vertically upward. The spring (122) is sleeved on the light column body (123), the lower end of the spring (122) is in contact with the top surface of the protruding column (121), the upper end of the spring (122) is in contact with the lower end surface of the sliding plate (20), and the spring (122) can be deformed in extension and contraction during the movement of the rolling wheel unit (10) along the vertical direction.

3. The alarm mechanism of claim 2, wherein: A plurality of end blocks (21) are arranged in front of and behind each other on the left side of the lower end surface of the sliding plate (20), so that the end blocks (21) are arranged opposite to each other in the left-right direction corresponding to the detection units (40). A plurality of stepped holes (212) are formed on the left end side of the lower end surface of the end block (21), and a pivot arm (211) is formed on the right end side; the upper end of the spring (122) is inserted into the port of the stepped hole (212), and the light column body (123) is inserted into the stepped hole (212); the near-left end of the rocker (30) is matched with the pivot arm (211).

4. The alerting mechanism of claim 2, wherein: A spherical body part is formed on the left end of the rocker (30); a spherical surface groove is formed on the protruding column (121), and a through hole extending in the left-right direction is formed on the bottom surface of the spherical surface groove; The right end of the rocker (30) can continue to extend to the right after passing through the through hole; the spherical body part and the spherical surface groove are matched in the form of surface contact.

5. The alerting mechanism of claim 1, wherein: The detection unit (40) comprises a sensor body fixed at the right end of the slide plate (20) and a movable part (31) fixed at the right end of the rocker (30); the movable part (31) is matched with the sensor body in association, and can cause the sensor body to change in physical quantity and generate a sensing signal in the process of moving with the right end of the rocker (30).

6. The alarm mechanism of claim 5, wherein: When the sensor of the detection unit (40) is a capacitive sensor, the sensor body is a capacitive sensor body (41). The polar plate part (42) in the capacitive sensor extends vertically downward relative to the capacitive sensor body (41); both polar plates of the polar plate part (42) are formed into trapezoidal plates with short sides downward, and are arranged in front and back opposition. The movable part (31) is a rectangular plate body provided with polar plate medium and extends between the two polar plates of the polar plate part (42).

7. The alerting mechanism of claim 1, wherein: On the upper end surface of the slide plate (20), track structures extending left and right are formed on the front and rear sides, and a rim block (22) protruding upward is formed at the center; The drive unit comprises a lead screw lever (50) matched with the rim block (22) and a motor unit (60) matched with the lead screw lever (50).

8. The device for monitoring the degree of oxidation of the lead sheet of the alarm mechanism according to any one of claims 1 to 7, characterized in that: The wheel surface of the roller (11) can be kept in contact with the surface of the lead plate (100) and can move left and right in the plane relative to the lead plate (100).

9. The radiation protection lead sheet door of the alarm mechanism according to any one of claims 1 to 7, comprising a plurality of lead sheets (100) laid flat and fixedly connected with a pressing frame (300), a plurality of supporting plates (200) capable of fixing and clamping the lead sheets (100) in the middle; the pressing frame (300) comprises a plurality of transverse beams (301) and a plurality of longitudinal beams (302) arranged in a crisscross manner; characterized in that: A rim plate extending forward or rightward is formed on the inner side of each of the transverse girders (301) arranged at the most front side and the most rear side; a vertical spacing is formed between the rim plate and the lead plate (100), and a strip-shaped through hole extending left and right is formed on the rim plate; The number of alarm mechanisms arranged on each side of the rim plate is multiple, and the multiple alarm mechanisms on each side are arranged in linkage in the left-right direction; The slide plate (20) is matched with the lower end surface of the rim plate through a slide rail structure extending in the left-right direction, and a transmission component corresponding to the strip-shaped through hole is arranged on the slide plate (20); the drive unit is fixedly arranged on the upper end surface of the rim plate, can be matched with the transmission component, and can drive the slide plate (20) to move in the left-right direction relative to the transverse girder (301).

10. The lead door of claim 9, wherein: The drive unit is arranged above the longitudinal girder (302); the longitudinal girder (302) is formed with a cavity (3021) extending left and right; when the slide plate (20) carrying the rocker (30) and the detection unit (40) approaches the longitudinal girder (302), the rocker (30) and the detection unit (40) can extend into the cavity (3021).

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