An elevator buffer structure detection device and method

Abstract

The application discloses a detection device and method for elevator buffer structure, and relates to the technical field of elevator detection.The application comprises a base, four corners of the top of the base are fixedly connected with mounting racks, the surface of the mounting rack is provided with a protection door, and the surface of the protection door is fixedly connected with a locking mechanism.The application can remove the limitation on the protection door by rotating the rotating rod, driving the gear to rotate, driving the gear plate to move, driving the limiting plate to move, and making the limiting plate separate from the inner cavity of the mounting rack, so that the protection door can be opened to place the buffer structure on the detection table for detection work.In the detection process, the protection door is closed and reinforced by the locking mechanism, which can effectively avoid the risk of splashing of parts, damage of structure and ejection of fragments during simulation impact, thereby improving the safety in the detection process.

Description

Technical Field

[0001] This invention belongs to the field of elevator testing technology, and in particular relates to a testing device and method for elevator buffer structures. Background Technology

[0002] Elevators are widely used in construction, logistics warehousing, and high-altitude operations. Their safety is of paramount importance. As a key part of the elevator safety system, the buffer structure can absorb and dissipate energy, reduce impact, and avoid or mitigate personal injury and equipment damage when the elevator falls unexpectedly or descends at excessive speed.

[0003] The existing testing devices for elevator buffer structures have an unstable connection between the overall structure and the buffer structure. This results in additional vibrations and deviations during simulated impacts, leading to inaccurate test data. More importantly, the existing testing devices lack effective protective functions during the testing process. During simulated impacts, there may be risks such as parts flying off, structural damage causing fragments to be ejected, posing a threat to the personal safety of testing personnel.

[0004] To address these issues, we provide a detection device and method for the buffer structure of an elevator, which can solve the problems mentioned above. Summary of the Invention

[0005] The purpose of this invention is to provide a detection device and method for the buffer structure of an elevator. By cooperating with the locking mechanism, positioning component and buffer component, the invention solves the problems of insufficient stability in the connection between the overall structure of the detection device and the buffer structure in the prior art, as well as the lack of effective protection function.

[0006] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution.

[0007] This invention relates to a testing device for a lift's buffer structure, comprising a base, with mounting brackets fixedly connected to the four corners of the top of the base. A protective door is provided on the surface of each mounting bracket, and a locking mechanism is fixedly connected to one side of each protective door. A testing platform is provided on the top of the base, and a positioning component is provided within the inner cavity of the testing platform. A buffer component is fixedly connected to the bottom of the inner cavity of the base, and the top of the buffer component is fixedly connected to the testing platform. The locking mechanism includes a housing, one side of which is fixedly connected to the protective door. A toothed plate is provided within the inner cavity of the housing, and a limit plate is fixedly connected to one side of the toothed plate. A sliding rod is slidably connected to the other side of the toothed plate, one side of which is fixedly connected to the inner wall of the housing. A first spring is slidably connected to the surface of the sliding rod, and one side of the first spring is fixedly connected to the inner wall of the housing. A rotating rod is installed through the bottom of the outer shell surface, and a gear is fixedly connected to one side of the rotating rod. The gear meshes with a gear plate, and one side of the limiting plate is engaged with the mounting bracket. A protective structure is set around the detection device to effectively ensure protection during the detection process and avoid the risk of parts flying or structural damage causing fragments to pop out during simulated impact. At the same time, a positioning component is set above the detection platform to quickly install and position the buffer structure. It can be quickly adjusted according to the shape and size of different buffer structures to ensure a stable connection during simulated impact and reduce additional vibration and deviation. The clamping range of the first and second limiting seats can be freely adjusted within a certain range. Their surfaces are made of rubber material, which can ensure the tightness of the connection and effectively buffer the small displacement during the impact process.

[0008] The invention is further configured such that the positioning component includes a motor, one side of which is fixedly connected to the detection platform, and the output end of the motor is fixedly connected to a threaded rod. One side of the threaded rod penetrates the surface of the detection platform and extends into the inner cavity of the detection platform. A threaded sleeve is threadedly connected to the surface of the threaded rod, and connecting frames are fixedly connected to both sides of the threaded sleeve. The top of the connecting frame penetrates the top of the detection platform and is fixedly connected to a first limiting seat. A second limiting seat is fixedly connected to the rear end of the top of the detection platform. Displacement sensors are fixedly connected to both sides of the surface of the second limiting seat. By using a motor to drive the threaded rod to rotate, the threaded sleeve can be driven to perform linear motion. A sliding sleeve is fixedly connected to the top of the threaded sleeve, and a limiting rod is slidably connected to the inner cavity of the sliding sleeve, which can ensure that the threaded sleeve performs stable linear motion, thereby driving the first limiting seat above to move and firmly fixing the buffer structure above the detection platform, thus improving the stability of its structural installation. During the impact process of simulating the fall or overspeed descent of an elevator, the displacement sensor can accurately measure the entire displacement change of the buffer structure from the initial impact to reaching the maximum compression state and then to the rebound. By recording these data, the specific value of the buffer stroke can be accurately obtained.

[0009] The invention is further configured such that the buffer assembly includes a base plate, the bottom of which is fixedly connected to the bottom of the base cavity, and a second spring is fixedly connected to both sides of the top of the base plate. A support plate is fixedly connected to the top of the second spring, and a damper is fixedly connected to the bottom of the support plate. The bottom of the damper is fixedly connected to the base plate, and a pressure sensor is fixedly connected to the top of the support plate. The top of the pressure sensor contacts the bottom of the detection platform. The cooperation of the second spring and the damper ensures the stability of the overall structure of the detection device and improves the buffering performance of the device during impact. When simulating the impact condition of an elevator, the pressure sensor can accurately measure the magnitude and change of the force borne by the buffer structure throughout the process.

[0010] The present invention is further configured such that limiting grooves are provided on both sides of the top of the base, and limiting blocks that cooperate with the limiting grooves are fixedly connected to the bottom of both sides of the detection platform. The limiting blocks on both sides of the detection platform extend into the inner cavity of the limiting groove and are slidably connected thereto, which can ensure that the detection platform can move up and down inside the base.

[0011] The present invention is further configured such that a connecting seat is fixedly connected to the rear end of the top of the mounting bracket, and a high-speed camera is fixedly connected to the top of the connecting seat. By setting the connecting seat and the high-speed camera, the detection process of the external detection device can be recorded in real time, thereby improving the detection effect.

[0012] The invention is further configured such that a handwheel is fixedly connected to the surface of the threaded rod, and the surface of the handwheel is provided with anti-slip texture. The handwheel drives the threaded rod to rotate, and the position of the limiting plate is adjusted by the threaded rod to achieve the effect of locking the protective door.

[0013] The invention is further configured such that an observation window is fixedly connected to one side of the surface of the protective door. The observation window is made of acrylic material, which allows staff to conveniently view the testing process in real time.

[0014] The present invention is further configured such that side plates are fixedly connected to both sides of the top of the testing platform, and the side plates are symmetrically arranged. The side plates can protect the buffer structure and improve the stability during the testing process.

[0015] The present invention has the following beneficial effects.

[0016] 1. This invention utilizes a rotating rod to drive a gear, which in turn moves a toothed plate, which in turn moves a limiting plate. The limiting plate disengages from the inner cavity of the mounting frame, thereby releasing the restriction on the protective door. This allows the protective door to be opened and the buffer structure placed on the testing table for testing. During testing, the protective door is closed and reinforced with a locking mechanism. This effectively prevents the risk of parts flying or structural damage causing fragments to eject during simulated impacts, thus improving safety during the testing process.

[0017] 2. This invention places the buffer structure above the testing platform. By starting the motor, the motor drives the threaded rod to rotate, the threaded rod drives the threaded sleeve to move, the threaded sleeve drives the connecting frame to move, and the connecting frame drives the first limiting seat to move. The cooperation between the first limiting seat and the second limiting seat can firmly position the buffer structure, ensuring the stability of the buffer structure during the testing process. This can avoid additional vibration and deviation during simulated impact, thus preventing inaccurate test data and improving the accuracy of the test. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0019] Figure 1 This is a perspective view of a testing device for a lift buffer structure.

[0020] Figure 2 This is a three-dimensional view of the base in a testing device for a lift buffer structure.

[0021] Figure 3 This is a three-dimensional view of the testing platform in a testing device for a lifting platform buffer structure.

[0022] Figure 4 This is a three-dimensional view of the motor and its connection structure in a testing device for a lift buffer structure.

[0023] Figure 5 This is a cross-sectional view of the outer casing of a testing device for a lift buffer structure.

[0024] Figure 6 This is a three-dimensional view of the internal structure of the base in a testing device for a lift buffer structure.

[0025] In the attached diagram: 1. Base; 2. Mounting bracket; 3. Protective door; 4. Locking mechanism; 401. Housing; 402. Toothed plate; 403. Limiting plate; 404. Sliding rod; 405. First spring; 406. Rotating rod; 407. Gear; 5. Detection table; 6. Positioning assembly; 601. Motor; 602. Threaded rod; 603. Threaded sleeve; 604. Connecting frame; 605. First limiting seat; 607. Second limiting seat; 608. Displacement sensor; 7. Buffer assembly; 701. Base plate; 702. Second spring; 703. Support plate; 704. Damper; 705. Pressure sensor; 8. Limiting groove; 9. Limiting block; 10. Connecting seat; 11. High-speed camera; 12. Handwheel; 13. Observation window; 14. Side plate. Detailed Implementation

[0026] The technical solutions of the present invention will be described below with reference to the accompanying drawings. The described embodiments are only some embodiments of the present invention, and not all embodiments.

[0027] Example 1

[0028] Please see Figure 1-6 This invention relates to a testing device for a lift buffer structure, comprising a base 1, with mounting brackets 2 fixedly connected to the four corners of the top of the base 1, protective doors 3 on the surface of the mounting brackets 2, a locking mechanism 4 fixedly connected to one side of the protective door 3, a testing platform 5 on the top of the base 1, a positioning component 6 inside the testing platform 5, a buffer component 7 fixedly connected to the bottom of the inner cavity of the base 1, the top of the buffer component 7 being fixedly connected to the testing platform 5, and the locking mechanism 4 comprising a housing 401, one side of the housing 401 being fixedly connected to the protective door 3, and the inner cavity of the housing 401 being... A toothed plate 402 is provided, with a limiting plate 403 fixedly connected to one side of the toothed plate 402 and a sliding rod 404 slidably connected to the other side of the toothed plate 402. One side of the sliding rod 404 is fixedly connected to the inner wall of the outer shell 401, and a first spring 405 is slidably connected to the surface of the sliding rod 404. One side of the first spring 405 is fixedly connected to the inner wall of the outer shell 401. A rotating rod 406 is provided through the bottom of the surface of the outer shell 401, and a gear 407 is fixedly connected to one side of the rotating rod 406. The gear 407 meshes with the toothed plate 402, and one side of the limiting plate 403 is engaged with the mounting bracket 2.

[0029] Specifically: A protective structure is set around the detection device to effectively ensure protection during the detection process and avoid risks such as component splashing, structural damage leading to fragment ejection, etc. during simulated impact. At the same time, a positioning component 6 is set above the detection platform 5 to quickly install and position the buffer structure. It can be quickly adjusted according to the shape and size of different buffer structures to ensure a stable connection during simulated impact and reduce additional vibration and deviation. The clamping range of the first limit seat 605 and the second limit seat 607 can be freely adjusted within a certain range. Their surfaces are made of rubber material, which can ensure the tightness of the connection and effectively buffer the small displacement during the impact process.

[0030] Example 2

[0031] Please see Figure 1-6 Based on Embodiment 1, the positioning component 6 includes a motor 601. One side of the motor 601 is fixedly connected to the detection table 5. A threaded rod 602 is fixedly connected to the output end of the motor 601. One side of the threaded rod 602 penetrates the surface of the detection table 5 and extends into the inner cavity of the detection table 5. A threaded sleeve 603 is threadedly connected to the surface of the threaded rod 602. A connecting frame 604 is fixedly connected to both sides of the threaded sleeve 603. The top of the connecting frame 604 penetrates the top of the detection table 5 and is fixedly connected to a first limiting seat 605. A second limiting seat 607 is fixedly connected to the rear end of the top of the detection table 5. Displacement sensors 608 are fixedly connected to both sides of the surface of the second limiting seat 607. The buffer component 7 includes a base plate 701. The bottom of the base plate 701 is fixedly connected to the bottom of the inner cavity of the base 1. A second spring 702 is fixedly connected to both sides of the top of the base plate 701. The top of the second spring 702... A support plate 703 is fixedly connected to the base 1. A damper 704 is fixedly connected to the bottom of the support plate 703. The bottom of the damper 704 is fixedly connected to the base plate 701. A pressure sensor 705 is fixedly connected to the top of the support plate 703. The top of the pressure sensor 705 contacts the bottom of the testing platform 5. Limiting grooves 8 are opened on both sides of the top of the base 1. Limiting blocks 9 that cooperate with the limiting grooves 8 are fixedly connected to the bottom of both sides of the testing platform 5. A connecting seat 10 is fixedly connected to the rear end of the top of the mounting bracket 2. A high-speed camera 11 is fixedly connected to the top of the connecting seat 10. A handwheel 12 is fixedly connected to the surface of the threaded rod 602. The surface of the handwheel 12 is provided with anti-slip texture. An observation window 13 is fixedly connected to one side of the surface of the protective door 3. The observation window 13 is made of acrylic material. Side plates 14 are fixedly connected to both sides of the top of the testing platform 5. The side plates 14 are symmetrically arranged.

[0032] Specifically: The threaded rod 602 is driven by a motor 601 to rotate, which in turn drives the threaded sleeve 603 to move linearly. A sliding sleeve is fixedly connected to the top of the threaded sleeve 603, and a limit rod is slidably connected to the inner cavity of the sliding sleeve, ensuring stable linear movement of the threaded sleeve 603. This, in turn, moves the first limit seat 605 above, firmly fixing the buffer structure above the detection platform 5, thus improving the stability of its installation. During the simulated impact of a lift falling or descending at excessive speed, the displacement sensor 608 can accurately measure the entire displacement change of the buffer structure from the initial impact to reaching maximum compression and then rebounding. By recording these data, the specific value of the buffer stroke can be accurately determined. The cooperation of the second spring 702 and the damper 704 ensures the overall stability of the detection device. This improves the buffering performance of the device during the impact process. When simulating the impact condition of an elevator, the pressure sensor 705 can accurately measure the magnitude and change of the force borne by the buffer structure throughout the process. The limiting blocks 9 on both sides of the detection platform 5 extend into the inner cavity of the limiting groove 8 and slide therewith, which can ensure that the detection platform 5 can move up and down inside the base 1. By setting the connecting seat 10 and the high-speed camera 11, the detection process of the external detection device can be recorded in real time, thereby improving the detection effect. The handwheel 12 drives the threaded rod 602 to rotate, and the position of the limiting plate 403 is adjusted by the threaded rod 602 to achieve the effect of locking the protective door 3. The observation window 13 allows the staff to view the detection process in real time. The side plate 14 can protect the buffer structure and improve the stability during the detection process.

[0033] The working principle of this invention is as follows: By placing the buffer structure above the testing platform 5, the motor 601 is started by an external controller. The motor 601 drives the threaded rod 602 to rotate, the threaded rod 602 drives the threaded sleeve 603 to move, the threaded sleeve 603 drives the connecting frame 604 to move, and the connecting frame 604 drives the first limiting seat 605 to move. The cooperation between the first limiting seat 605 and the second limiting seat 607 can firmly position the buffer structure, ensuring the stability of the buffer structure during the testing process. By rotating the handwheel 12, the handwheel 12 drives the rotating rod 406 to rotate, the rotating rod 406 drives the gear 407 to rotate, the gear 407 drives the toothed plate 402 to move, and the toothed plate 402 drives the limiting plate 403 to move. The limiting plate 403 disengages from the inner cavity of the mounting frame 2, thereby releasing the restriction on the protective door 3. The protective door 3 can be opened to place the buffer structure on the testing platform 5 for testing. During the testing process, the protective door 3 is closed and reinforced by the locking mechanism 4, which can ensure the protective performance of the buffer structure during the testing process.

[0034] The present invention also provides a method for using the detection device for the elevator buffer structure, as follows:

[0035] S100. Inspect all components of the device for damage, including the base 1, mounting bracket 2, protective door 3, locking mechanism 4, detection table 5, positioning component 6, and buffer component 7. Confirm that the electrical equipment, such as motor 601, displacement sensor 608, pressure sensor 705, and high-speed camera 11, is properly connected and functioning. Place the device in a stable and safe working area, ensuring there are no obstructions affecting operation. The innovation of this device lies in its unique locking mechanism 4. Compared to traditional detection devices, it uses the cooperation of toothed plate 402, limit plate 403, rotating rod 406, and gear 407 to more conveniently and stably open and close the protective door 3, greatly improving operational convenience and safety during the detection process.

[0036] S200, rotate handwheel 12, which drives rotating rod 406 to rotate. Rotating rod 406 drives gear 407 to rotate, gear 407 drives toothed plate 402 to move, and toothed plate 402 drives limiting plate 403 to disengage from the inner cavity of mounting bracket 2, opening protective door 3. Place the elevator buffer structure to be tested on the testing platform 5, trying to center it on the testing platform 5. The innovative positioning component 6 of this device can be quickly adjusted according to the shape and size of different buffer structures. For example, motor 601 drives threaded rod 602 to rotate, driving threaded sleeve 603 to move, thereby accurately adjusting the position of first limiting seat 605. Compared with the traditional fixed limiting method, it can adapt to more types of buffer structures, ensuring a stable connection during simulated impact and reducing additional vibration and deviation.

[0037] S300, start motor 601. Motor 601 drives threaded rod 602 to rotate, threaded rod 602 drives threaded sleeve 603 to move, threaded sleeve 603 drives connecting bracket 604 to move, connecting bracket 604 drives first limit seat 605 to move. Adjust the position of first limit seat 605 to match second limit seat 607, firmly positioning the buffer structure. According to the shape and size of the buffer structure, fine-tune the position of first limit seat 605 through motor 601 to ensure a stable connection and reduce vibration and deviation during testing. The surfaces of first limit seat 605 and second limit seat 607 in positioning assembly 6 are made of rubber material. This innovative design not only ensures the tightness of the connection but also effectively buffers small displacements during impact, further improving the accuracy of testing.

[0038] S400: Close the protective door 3, turn the handwheel 12 again to re-engage the limit plate 403 into the inner cavity of the mounting bracket 2, and reinforce the protective door 3 through the locking mechanism 4. Start the detection program to simulate the lifting platform falling or descending at excessive speed. At this time, the displacement sensor 608 measures the displacement change of the buffer structure, the pressure sensor 705 measures the force, and the high-speed camera 11 records the detection process. During the detection process, the staff can view the detection situation in real time through the observation window 13. The buffer component 7 of the device is a major innovation. It is composed of a second spring 702 and a damper 704. It can effectively ensure the stability of the overall structure of the device during simulated impact, improve the buffer performance of the device, and ensure more accurate detection data. At the same time, the setting of the high-speed camera 11 can record the detection process in real time, providing more comprehensive data for subsequent analysis. This is also an important innovation that distinguishes it from traditional detection devices.

[0039] S500. After the test is completed, turn handwheel 12 to open protective door 3 and remove the tested buffer structure. Organize the device and turn off the power to motor 601, high-speed camera 11, and other equipment. Analyze and process the test data, recording key data such as buffer stroke, force magnitude and changes, and evaluate the performance of the buffer structure. The observation window 13 on protective door 3 is made of acrylic material, which has higher strength and better transparency than ordinary glass, allowing staff to observe the internal situation more clearly during the test. This innovative detail improves operational convenience.

[0040] The preferred embodiments of the present invention disclosed above are only for the purpose of illustrating the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to specific implementation methods. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can better understand and utilize the present invention.

Claims

1. A detection device for a lift buffer structure, comprising a base (1), characterized in that: Mounting brackets (2) are fixedly connected to the four corners of the top of the base (1). A protective door (3) is provided on the surface of the mounting bracket (2). A locking mechanism (4) is fixedly connected to one side of the surface of the protective door (3). A testing platform (5) is provided on the top of the base (1). A positioning component (6) is provided in the inner cavity of the testing platform (5). A buffer component (7) is fixedly connected to the bottom of the inner cavity of the base (1). The top of the buffer component (7) is fixedly connected to the testing platform (5). The locking mechanism (4) includes a housing (401), one side of which is fixedly connected to the protective door (3). The inner cavity of the housing (401) is provided with a toothed plate (402). One side of the toothed plate (402) is fixedly connected to a limiting plate (403). The other side of the toothed plate (402) is slidably connected to a slide rod (404). One side of the slide rod (404) is fixedly connected to the inner wall of the housing (401). A first spring (405) is slidably connected to the surface of the slide rod (404). One side of the first spring (405) is fixedly connected to the inner wall of the housing (401). A rotating rod (406) is provided through the bottom of the surface of the housing (401). A gear (407) is fixedly connected to one side of the rotating rod (406). The gear (407) meshes with the toothed plate (402). One side of the limiting plate (403) is engaged with the mounting bracket (2). The positioning component (6) includes a motor (601), one side of which is fixedly connected to the detection table (5). A threaded rod (602) is fixedly connected to the output end of the motor (601). One side of the threaded rod (602) penetrates the surface of the detection table (5) and extends into the inner cavity of the detection table (5). A threaded sleeve (603) is threadedly connected to the surface of the threaded rod (602). A connecting frame (604) is fixedly connected to both sides of the threaded sleeve (603). The top of the connecting frame (604) penetrates the top of the detection table (5) and is fixedly connected to a first limiting seat (605). A second limiting seat (607) is fixedly connected to the rear end of the top of the detection table (5). Displacement sensors (608) are fixedly connected to both sides of the surface of the second limiting seat (607). The buffer assembly (7) includes a base plate (701), the bottom of which is fixedly connected to the bottom of the inner cavity of the base (1). A second spring (702) is fixedly connected to both sides of the top of the base plate (701). A support plate (703) is fixedly connected to the top of the second spring (702). A damper (704) is fixedly connected to the bottom of the support plate (703). The bottom of the damper (704) is fixedly connected to the base plate (701). A pressure sensor (705) is fixedly connected to the top of the support plate (703). The top of the pressure sensor (705) is in contact with the bottom of the detection platform (5).

2. The detection device for the elevator buffer structure according to claim 1, characterized in that: The base (1) has limit grooves (8) on both sides of the top, and the bottom of both sides of the testing platform (5) is fixedly connected with limit blocks (9) that cooperate with the limit grooves (8).

3. The detection device for the elevator buffer structure according to claim 1, characterized in that: The mounting bracket (2) has a connecting seat (10) fixedly connected to its rear end, and a high-speed camera (11) is fixedly connected to the top of the connecting seat (10).

4. The detection device for the elevator buffer structure according to claim 1, characterized in that: A handwheel (12) is fixedly connected to the surface of the threaded rod (602), and the surface of the handwheel (12) is provided with anti-slip texture.

5. The detection device for the elevator buffer structure according to claim 1, characterized in that: An observation window (13) is fixedly connected to one side of the surface of the protective door (3), and the observation window (13) is made of acrylic material.

6. The detection device for the elevator buffer structure according to claim 1, characterized in that: The top of the testing platform (5) is fixedly connected to two side plates (14), and the side plates (14) are arranged symmetrically.

7. The detection device for the elevator buffer structure according to any one of claims 1-6, the present invention also provides a method of using the device: S100. Check whether each component of the device is intact, including whether the base (1), mounting bracket (2), protective door (3), locking mechanism (4), detection table (5), positioning component (6), buffer component (7), etc. are damaged. Confirm that the motor (601), displacement sensor (608), pressure sensor (705), and high-speed camera (11) are connected normally and can work normally. S200, rotate the handwheel (12), the handwheel (12) drives the rotating rod (406) to rotate, the rotating rod (406) drives the gear (407) to rotate, the gear (407) drives the toothed plate (402) to move, the toothed plate (402) drives the limiting plate (403) to disengage from the inner cavity of the mounting frame (2), open the protective door (3), place the elevator buffer structure to be tested on the test platform (5) and try to place it in the center of the test platform (5). The innovative positioning component (6) of this device can be quickly adjusted according to the shape and size of different buffer structures; S300, Start the motor (601). The motor (601) drives the threaded rod (602) to rotate. The threaded rod (602) drives the threaded sleeve (603) to move. The threaded sleeve (603) drives the connecting frame (604) to move. The connecting frame (604) drives the first limit seat (605) to move. Adjust the position of the first limit seat (605) so that it cooperates with the second limit seat (607) to firmly position the buffer structure. According to the shape and size of the buffer structure, the position of the first limit seat (605) is finely adjusted by the motor (601) to ensure a stable connection and reduce vibration and deviation during testing. S400, close the protective door (3), turn the handwheel (12) again to make the limit plate (403) re-lock into the inner cavity of the mounting bracket (2), reinforce the protective door (3) through the locking mechanism (4), start the detection program, simulate the elevator falling or overspeed descent, at this time the displacement sensor (608) measures the displacement change of the buffer structure, the pressure sensor (705) measures the force, and the high-speed camera (11) records the detection process. During the detection process, the staff can view the detection situation in real time through the observation window (13); S500. After the test is completed, turn the handwheel (12) to open the protective door (3), take out the tested buffer structure, tidy up the device, turn off the power of the motor (601), high-speed camera (11) and other equipment, analyze and process the test data, record key data such as buffer stroke, force magnitude and changes, and evaluate the performance of the buffer structure.

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