Elevator earthquake detection device

Abstract

The invention relates to the technical field of earthquake detection devices, in particular to an elevator earthquake detection device which comprises a stand column, a protective cover shell is fixedly installed at the upper end of the stand column, an earthquake detector is installed on the inner side of the protective cover shell and comprises a shell and a sensor, and a supporting frame is fixedly installed at the lower end of the sensor. By adopting the optimized design of the take-up mechanism, cable limiting of multiple sets of wiring assemblies is achieved, cables from multiple directions are folded through the combined limiting piece, and by combining with thread adaptation of the wire protection sleeve and the bottom end of the limiting piece, double locking of the limiting piece for folding of the cables in the multiple directions is achieved, and in the assembling process, the assembly efficiency is greatly improved. When the cable is folded, the upward-pushing bunching mechanism is triggered to further abut against the folded cable and prevent the cable from being scattered, so that the problem of electromagnetic interference caused by cable winding of the earthquake detection device is avoided, and loosening and influence on the precision of a sensor are not easy to occur.

Description

Technical Field

[0001] This invention relates to the field of earthquake detection device technology, specifically an elevator earthquake detection device. Background Technology

[0002] An elevator earthquake detector is a seismic sensing device specifically designed for elevator safety. This device works in conjunction with an elevator control system to control the elevator. It can quickly detect seismic waves during an earthquake and output alarm contacts for the elevator control system to use. Based on the contact status, the elevator control system controls the elevator to level with the nearest floor and open the doors, releasing passengers and maximizing their safety. Existing elevator earthquake detectors require connecting power and signal lines to the elevator control box, involving multiple cables such as DC24V power supply and primary / secondary alarm output lines. If these cables become tangled, it can easily cause electromagnetic interference, affecting the sensor's accuracy.

[0003] In the prior art, such as the automatic alarm earthquake detector disclosed in CN209248028U, there is a base plate. Support blocks are fixed to the left and right sides of the top of the base plate. Top blocks are fixed to the left and right sides of the top of the outer wall of the slot. A pull rod is fixed between the inner ends of the top blocks. Bottom blocks are fixed to the left and right sides of the bottom of the base plate. A base is fixed to the bottom of the bottom blocks. Grooves are fixed to the center of the left and right ends of the inner wall of the base plate. Ball bearings are fitted into the inner walls of the grooves. A first connecting block is fixed to the center of the top of the center block. A handle is fixed to the top of the first connecting block. A second connecting block is fixed to the center of the bottom of the center block. A threaded rod is fixed to the bottom of the second connecting block. A threaded sleeve is threaded to the bottom of the outer wall of the threaded rod. When this automatic alarm earthquake detector needs to be fixed, the cooperation between the slot and the base plate makes the connection more secure, while also adding a protective device to prevent damage during operation.

[0004] However, in actual use, traditional earthquake detection devices require manual connection of power and signal lines to the elevator control box. Retrofitting old elevators requires damaging the original wiring. The multiple signal lines of the earthquake sensor are connected to the elevator control box and are bundled with cable ties. The tangling of multiple cables may cause electromagnetic interference and affect the accuracy of the sensor.

[0005] Therefore, this invention proposes an elevator seismic detection device to solve the problem that the existing seismic detection devices have a single wiring method that easily leads to loose or detached wires, thus affecting the accuracy of elevator seismic detection. Summary of the Invention

[0006] In view of the shortcomings of the existing technology, the purpose of this invention is to provide an elevator earthquake detection device to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: an elevator earthquake detection device, comprising a column, a protective cover fixedly installed at the upper end of the column, an earthquake detector installed inside the protective cover, the earthquake detector comprising a housing and a sensor, a support frame fixedly installed at the lower end of the sensor, a wiring assembly provided inside the support frame, and a wire take-up mechanism provided below the support frame, the wire take-up mechanism comprising a wire guard sleeve, a limiting member and a narrowing member, an upward wire harness mechanism movably connected inside the limiting member, the upward wire harness mechanism comprising a limiting ring plate and a meshing toothed rod, the limiting ring plate being slidably installed inside the limiting member.

[0008] Preferably, the limiting component includes a first insert wing plate, a second insert wing plate, and a flange ring. The inner sides of the first insert wing plate and the second insert wing plate are respectively fixedly connected to a first threaded collar and a second threaded collar. The outer surface of the end of the first insert wing plate and the second insert wing plate away from the first threaded collar and the second threaded collar is movably engaged with the inner side of the lower end of the support frame. The first threaded collar and the second threaded collar combine to form a hollow column structure that is narrow at the top and wide at the bottom.

[0009] Preferably, the narrowing member includes a narrowing sleeve plate, and the narrowing sleeve plate is provided in two sets and is distributed in a mirror image about the central axis of the limiting member. The two sets of narrowing sleeve plates are combined to form a cone structure that is narrow at the top and wide at the bottom.

[0010] Preferably, the narrowing component further includes a limiting guard plate, which is fixedly installed on the inner surface of the narrowing sleeve plate. A receiving groove is provided on the inner side of the limiting guard plate, and a transmission component is provided on the inner side of the receiving groove.

[0011] Preferably, the transmission component includes a curved elastic bar, a swing rod, and an incomplete gear. The incomplete gear and the swing rod are integrally formed. A shaft is fixedly connected to the inner surface of the center of the incomplete gear. The outer surfaces of both ends of the shaft are rotatably connected to the lower inner wall of the limiting guard plate. The upper outer surface of the swing rod is fixedly connected to one end of the curved elastic bar, and the other end of the curved elastic bar is fixedly connected to the inner surface of the narrowing sleeve plate.

[0012] Preferably, the upper inner ring surface of the cable sleeve is provided with a threaded groove, and the inner wall of the threaded groove is adapted to the outer surface thread when the threaded collar one and the threaded collar two are combined.

[0013] Preferably, a guide rod is fixedly connected to the inner surface of the cable sleeve, and a lifting ring is fixedly connected to the upper end of the guide rod. The upper outer surface of the lifting ring is in contact with the lower bottom surface of the limiting ring plate.

[0014] Preferably, the inner wall of the limiting ring plate is uniformly provided with an insert groove, and a retaining member is movably inserted into the insert groove. The retaining member includes a locking block, and a petal-shaped claw is rotatably connected to the upper surface of the locking block. A retaining block is rotatably connected to the end of the petal-shaped claw away from the locking block, and one side surface of the retaining block movably abuts against the outer surface of the swing rod.

[0015] Preferably, a pin is fixedly connected to the inner wall of the supporting block, the pin is rotatably mounted on the upper inner wall of the petal-shaped claw, and torsion springs are respectively sleeved on both ends of the pin.

[0016] Compared with the prior art, the beneficial effects of the present invention are: This invention proposes an elevator earthquake detection device. Through an optimized design of the cable take-up mechanism, it achieves cable limiting of multiple sets of wiring components, allowing cables from multiple directions to be gathered together by the combined limiting components. Combined with the threaded fit between the cable sleeve and the bottom of the limiting component, it not only satisfies the double locking of the limiting components for gathering multi-directional cables, but also triggers the upward cable-binding mechanism during assembly to further hold the gathered cables in place, preventing them from becoming tangled. This avoids the problem of electromagnetic interference caused by cable entanglement in the earthquake detection device, and also prevents the cables from loosening and affecting the accuracy of the sensor. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the protective cover of the present invention in the open state; Figure 3 This is a schematic diagram of a partial connection between the column and the seismic detector of the present invention; Figure 4 This is a schematic diagram of the wiring assembly of the present invention in the coiled state by the take-up mechanism; Figure 5 This is a schematic diagram of a partial connection between the limiting member and the cable sleeve of the present invention; Figure 6 For the present invention Figure 5 A schematic diagram of the cross-sectional structure at point aa; Figure 7 For the present invention Figure 6 A magnified structural diagram at point B; Figure 8 For the present invention Figure 6 Schematic diagram of the disassembled structure of the middle protective sleeve and limiting component; Figure 9 For the present invention Figure 8 A magnified structural diagram at point A; Figure 10 This is a schematic diagram of the internal structure of the limiting member and the wire protection sleeve of the present invention; Figure 11 This is a schematic diagram of the swing rod in the state where it does not contact the holding block according to the present invention; Figure 12 This is a schematic diagram of the swing rod contacting the holding block in the state of the present invention; Figure 13 This is a schematic diagram of the disassembled structure of the limiting guard plate and the swing rod of the present invention; Figure 14 This is a partial three-dimensional structural diagram of the supporting member of the present invention.

[0018] In the diagram: 1. Column; 11. Protective casing; 2. Seismic detector; 21. Outer casing; 22. Sensor; 221. Sensor wing plate; 222. Support frame; 223. Wiring assembly; 23. Cable sleeve; 231. Guide inner rod; 232. Lifting ring; 24. Inserting wing plate one; 241. Threaded collar one; 25. Inserting wing plate two; 251. Threaded collar two; 26. Narrowing sleeve plate; 261. Limiting guard plate; 2610. Receiving groove; 262. Curved elastic bar; 263. Swing rod; 2631. Incomplete gear; 27. Limiting ring plate; 270. Inserting groove; 2701. Locking block; 2702. Petal-shaped gripper; 2703. Supporting block; 271. Meshing toothed rod. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the present invention clear and complete, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of the present invention, and are merely illustrative of the embodiments of the present invention. They are not intended to limit the embodiments of the present invention. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Example 1, please refer to Figures 1-14This invention provides a technical solution: an elevator earthquake detection device, including a column 1, a protective cover 11 fixedly installed on the upper end of the column 1, an earthquake detector 2 installed inside the protective cover 11, the earthquake detector 2 including a housing 21 and a sensor 22, a support frame 222 fixedly installed on the lower end of the sensor 22, a wiring assembly 223 provided inside the support frame 222, and a wire take-up mechanism provided below the support frame 222, the wire take-up mechanism including a wire guard sleeve 23, a limiting member and a narrowing member, an upward wire pulling mechanism movably connected inside the limiting member, the upward wire pulling mechanism including a limiting ring plate 27 and a meshing toothed rod 271, the limiting ring plate 27 being slidably installed on the limiting member... The sensor 22 is electrically connected to the wiring assembly 223 on the inner side of the device, and the sensor 22 is electrically connected to the sensing wing plate 221 on the inner side of the sensor 22. When the sensing wing plate 221 is pushed up, it indicates that the elevator signal is abnormal. After the abnormal state is cleared, it needs to be manually reset. The device collects the ground motion acceleration in the X, Y, and Z directions during an earthquake to accurately detect the occurrence of the earthquake. When the P wave arrives, the acceleration sensor detects the vibration in the vertical direction in the early stage of the earthquake and outputs the corresponding electrical signal. After filtering and amplification, the signal is sent to the microprocessor for corresponding processing via an analog-to-digital converter. Similarly, when the S wave arrives, the earthquake detector 2 detects the vibration in the horizontal direction and outputs the corresponding electrical signal. After filtering and amplification, the signal is sent to the microprocessor for corresponding processing via an analog-to-digital converter. It's important to note that the seismic detector 2 has two relay outputs: a primary alarm output and a secondary alarm output. These are connected to the elevator control system for data acquisition. The primary alarm output is triggered when the instrument detects early P-wave vibrations or low ground acceleration; it's a lower-level output used to indicate a potential earthquake. The secondary alarm output corresponds to higher ground acceleration and requires manual reset by a professional elevator operator after inspecting the elevator and confirming there are no malfunctions. By setting the primary and secondary alarm outputs, a tiered early warning mechanism is established. When an earthquake occurs, the equipment automatically detects seismic waves, and if the detected seismic wave acceleration is below 0.2 m / s², it triggers the alarm. ² ~1m / s ² At that time, the Level 1 alarm indicator light illuminates, and the Level 1 alarm is output; a seismic wave acceleration of 0.4 m / s² is detected. ² ~3m / s ²When a seismic wave is detected, the secondary alarm indicator light illuminates, and a secondary alarm is output. The stronger the seismic wave, the faster the status indicator light flashes. After receiving the signal, the elevator control system automatically executes the earthquake emergency procedure, including stopping the elevator and opening the car door. After the elevator stops, passengers should remain calm and evacuate in an orderly manner according to the emergency procedure. Once the abnormal state caused by the earthquake is resolved, for a primary alarm, if no further abnormality is detected, normal operation can continue. For a secondary alarm, a professional elevator operator must inspect the elevator and, after confirming that there are no faults, manually reset it to put the elevator back into a safe and reliable operating state, further ensuring the safety of passengers.

[0021] Example 2, see attached document Figures 1-14 Based on Embodiment 1, in order to achieve the bundled gathering of cables connecting multiple sets of wiring components 223: the limiting component includes a first insert wing plate 24, a second insert wing plate 25 and a flange ring. The flange ring penetrates the bottom surface of the inner cavity of the outer shell 21 and is fixedly connected thereto. The inner sides of the first insert wing plate 24 and the second insert wing plate 25 are respectively fixedly connected to the threaded collar 241 and the threaded collar 251. The outer surface of the end of the first insert wing plate 24 and the second insert wing plate 25 away from the threaded collar 241 and the threaded collar 251 is movably engaged with the inner side of the lower end of the support frame 222. The threaded collar 241 and the threaded collar 251 are combined to form a hollow column structure that is narrow at the top and wide at the bottom. The narrowing component includes a narrowing sleeve plate 26. Two sets of narrowing sleeve plates 26 are provided and are mirror-distributed about the central axis of the limiting component. The two sets of narrowing sleeve plates 26 are combined to form a cone structure that is narrow at the top and wide at the bottom. Before installing the limiting component and support frame 222, one end of the wiring assembly 223 is connected to the terminal of the sensor 22 via a terminal block. The operator pulls the connected wiring part of the wiring assembly 223 towards the middle. Here, the first embedded wing plate 24 and the first threaded collar 241, and the second embedded wing plate 25 and the second threaded collar 251 form two opposing ring structures without inserting the flange ring, thus gathering the cable. After the first threaded collar 241 and the second threaded collar 251 are joined together, they pass through the flange ring and extend to the inner bottom surface of the outer shell 21. At the same time, the two ends of the first embedded wing plate 24 and the second embedded wing plate 25 are respectively fitted and engaged with the bottom end of the support frame 222, thus achieving the initial limiting of the multi-directional cable. It should be noted that the inner sides of the first threaded collar 241 and the second threaded collar 251 are respectively equipped with narrowing sleeve plates 26. The two sets of narrowing sleeve plates 26 form a cone structure that is narrow at the top and wide at the bottom, further increasing the gathering effect of the multi-directional cable.

[0022] Example 3, refer to Appendix Figures 1-14Based on Embodiment 2, in order to achieve double locking of the limiting component: the upper inner ring surface of the cable sleeve 23 is provided with a threaded groove, and the inner wall of the threaded groove is adapted to the outer surface thread when the threaded collar 1 241 and the threaded collar 251 are combined; the inner surface of the cable sleeve 23 is fixedly connected to the guide inner rod 231, and the upper end of the guide inner rod 231 is fixedly connected to the lifting ring 232, and the upper outer surface of the lifting ring 232 is in movable contact with the lower bottom surface of the limiting ring plate 27; the inner ring surface of the cable sleeve 23 is provided with an inner protrusion, and the inner diameter of the inner protrusion is smaller than the inner diameter of the threaded collar 1 241 and the threaded collar 251. Reference Figures 5-6 As shown, when the multi-directional cable is gathered by the limiting component and initially limited by the support frame 222, the handheld cable protection sleeve 23 is threaded from the bottom end of the outer shell 21 to the lower outer surface of the threaded collar 241 and the threaded collar 251, thus achieving the locking state after the threaded collar 241 and the threaded collar 251 are combined; when the cable protection sleeve 23 is tightened, the guide inner rod 231 and the lifting ring 232 installed on the inner convex edge rotate upward and abut against the bottom of the limiting ring plate 27, so that the limiting ring plate 27 moves upward as a whole.

[0023] Example 4, see attached document Figures 1-14 Based on Embodiment 3, in order to achieve multiple locking of the limiting component while simultaneously triggering auxiliary support for the central cable gathering to prevent loosening: the narrowing component also includes a limiting guard plate 261, which is fixedly installed on the inner surface of the narrowing sleeve plate 26. A receiving groove 2610 is provided on the inner side of the limiting guard plate 2610, and a transmission component is provided on the inner side of the receiving groove 2610. The transmission component includes a curved elastic bar 262, a swing rod 263, and an incomplete gear 2631. The incomplete gear 2631 and the swing rod 263 are integrally formed. A shaft is fixedly connected to the central inner surface of the incomplete gear 2631, and the outer surfaces of both ends of the shaft are rotatably connected to the lower inner wall of the limiting guard plate 261. The upper outer surface of the swing rod 263... One end of the curved elastic bar 262 is fixedly connected to the surface, and the other end of the curved elastic bar 262 is fixedly connected to the inner surface of the narrowing sleeve plate 26; the inner wall of the limiting ring plate 27 is evenly provided with an inserting groove 270, and a supporting member is movably inserted inside the inserting groove 270. The supporting member includes a locking block 2701, and a petal-shaped gripper 2702 is rotatably connected to the upper surface of the locking block 2701. A supporting block 2703 is rotatably connected to the end of the petal-shaped gripper 2702 away from the locking block 2701. One side surface of the supporting block 2703 movably abuts against the outer surface of the swing rod 263; a pin is fixedly connected to the inner wall of the supporting block 2703. The pin is rotatably installed on the upper inner wall of the petal-shaped gripper 2702, and torsion springs are respectively sleeved on both ends of the pin. Reference Figures 6-9As shown, when the cable sleeve 23 is fitted and locked with the limiting member, the lifting ring 232 pushes the limiting ring plate 27 upward. At this time, multiple sets of meshing racks 271 move upward simultaneously. When the meshing racks 271 are not engaged with the incomplete gear 2631, the swing rod 263 retracts to the inner side of the limiting guard plate 261, compensating for the notch at the receiving groove 2610. At this time, the petal-shaped gripper 2702 and the abutment block 2703 are not resisted by the external force of the swing rod 263, forming a situation as follows: Figure 9 As shown, multiple sets of abutment blocks 2703 form an flared state and are temporarily not in contact with the center cable; when the cable sleeve 23 is screwed into place, the lifting ring 232 abuts against the limiting ring plate 27, and the meshing gear 271 meshes with the incomplete gear 2631, specifically as follows. Figure 7 As shown, at this time, the meshing gear 271 rises, and the incomplete gear 2631 rotates clockwise, driving the swing rod 263 to swing outwards. At this time, the curved elastic bar 262 is stretched. When the swing rod 263 swings outwards, the petal-shaped gripper 2702 and the abutment block 2703 are subjected to external force to abut the cable inwards. In this way, the cable is abutted in multiple directions to prevent loosening and accidental loosening, and further ensure the electromagnetic effect of the seismic detector 2 during use.

[0024] The working principle and usage process of this invention are as follows: In actual use, firstly, before installing the limiting component and support frame 222, one end of the wiring assembly 223 is connected to the wiring terminal of the sensor 22 via a wiring terminal. The operator pulls the wiring part of the connected wiring assembly 223 towards the middle. At this time, the first interlocking wing plate 24 and the first threaded collar 241, and the second interlocking wing plate 25 and the second threaded collar 251, without the flange ring inserted, form two opposing clamping ring structures to gather the cable. At the same time, the two ends of the first interlocking wing plate 24 and the second interlocking wing plate 25 are respectively adapted and interlocked with the bottom end of the support frame 222 to achieve the initial limiting of the multi-directional cable. Furthermore, after the multi-directional cable is gathered by the limiting component and achieves the initial limiting with the support frame 222, the handheld cable protection sleeve 23 is adapted to the threads on the lower outer surface of the threaded collar 241 and the second threaded collar 251 from the bottom end of the outer shell 21 to achieve the combination of the threaded collar 241 and the second threaded collar 251. In the locked state, during the tightening action of the cable sleeve 23, the guide inner rod 231 and the lifting ring 232 installed on the inner convex edge rotate upward and abut against the bottom of the limiting ring plate 27, causing the limiting ring plate 27 to move upward relatively as a whole; subsequently, when the cable sleeve 23 is fitted and locked with the limiting component, the lifting ring 232 pushes the limiting ring plate 27 upward, at which time multiple sets of meshing toothed rods 271 move upward simultaneously. When the cable sleeve 23 is screwed into place, the lifting ring 232... Ring 232 abuts against limiting ring plate 27, causing meshing rack 271 and incomplete gear 2631 to mesh with each other. Meshing rack 271 rises, and incomplete gear 2631 rotates clockwise, causing swing rod 263 to swing outwards. Petal-shaped claw 2702 and holding block 2703 are subjected to external force to hold the cable inwards, providing auxiliary clamping to the cable in multiple directions to prevent loosening and accidental loosening, and ensuring the electromagnetic effect of seismic detector 2 during use.

[0025] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An elevator earthquake detection device, comprising a column (1), wherein a protective cover (11) is fixedly installed on the upper end of the column (1), characterized in that: An earthquake detector (2) is installed inside the protective cover (11). The earthquake detector (2) includes a shell (21) and a sensor (22). A support frame (222) is fixedly installed at the lower end of the sensor (22). A wiring assembly (223) is provided inside the support frame (222). A wire take-up mechanism is provided below the support frame (222). The wire take-up mechanism includes a wire sleeve (23), a limiting member, and a narrowing member. An upward wire pulling mechanism is movably connected inside the limiting member. The upward wire pulling mechanism includes a limiting ring plate (27) and a meshing toothed rod (271). The limiting ring plate (27) is slidably installed inside the limiting member.

2. The elevator seismic detection device according to claim 1, characterized in that: The limiting component includes a first insert wing plate (24), a second insert wing plate (25), and a flange ring. The inner sides of the first insert wing plate (24) and the second insert wing plate (25) are respectively fixedly connected to a first threaded collar (241) and a second threaded collar (251). The outer surface of the first insert wing plate (24) and the second insert wing plate (25) away from the first threaded collar (241) and the second threaded collar (251) is movably engaged with the inner side of the lower end of the support frame (222). The first threaded collar (241) and the second threaded collar (251) are combined to form a hollow column structure that is narrow at the top and wide at the bottom.

3. The elevator seismic detection device according to claim 1, characterized in that: The narrowing component includes a narrowing sleeve (26), which is provided in two sets and is distributed in a mirror image about the central axis of the limiting component. The two sets of narrowing sleeves (26) are combined to form a cone structure that is narrow at the top and wide at the bottom.

4. The elevator seismic detection device according to claim 3, characterized in that: The narrowing component also includes a limiting guard plate (261), which is fixedly installed on the inner surface of the narrowing sleeve plate (26). The inner side of the limiting guard plate (261) is provided with a receiving groove (2610), and the inner side of the receiving groove (2610) is provided with a transmission component.

5. The elevator seismic detection device according to claim 4, characterized in that: The transmission component includes a curved elastic bar (262), a swing rod (263), and an incomplete gear (2631). The incomplete gear (2631) and the swing rod (263) are integrally formed. A shaft is fixedly connected to the inner surface of the center of the incomplete gear (2631). The outer surfaces of both ends of the shaft are rotatably connected to the lower inner wall of the limiting guard plate (261). The upper outer surface of the swing rod (263) is fixedly connected to one end of the curved elastic bar (262), and the other end of the curved elastic bar (262) is fixedly connected to the inner surface of the narrowing sleeve plate (26).

6. The elevator seismic detection device according to claim 2, characterized in that: The upper inner ring surface of the wire sleeve (23) is provided with a threaded groove, and the inner wall of the threaded groove is adapted to the outer surface thread when it is combined with the threaded collar one (241) and the threaded collar two (251).

7. The elevator seismic detection device according to claim 6, characterized in that: The inner surface of the protective sleeve (23) is fixedly connected to a guide rod (231), and the upper end of the guide rod (231) is fixedly connected to a lifting ring (232). The upper outer surface of the lifting ring (232) is in contact with the lower bottom surface of the limiting ring plate (27).

8. The elevator seismic detection device according to claim 7, characterized in that: The inner wall of the limiting ring plate (27) is uniformly provided with an insert groove (270). The insert groove (270) is movably fitted with a support member. The support member includes a locking block (2701). The upper surface of the locking block (2701) is rotatably connected with a petal-shaped claw (2702). The end of the petal-shaped claw (2702) away from the locking block (2701) is rotatably connected with a support block (2703). One side surface of the support block (2703) is in active contact with the outer surface of the swing rod (263).

9. The elevator seismic detection device according to claim 8, characterized in that: A pin is fixedly connected to the inner wall of the abutment block (2703). The pin is rotatably installed on the upper inner wall of the petal-shaped claw (2702), and torsion springs are respectively sleeved on both ends of the pin.

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