A reliability and safety detection device for elevator components

Abstract

The present invention relates to the technical field of elevator parts inspection, and more particularly to a device for inspecting the reliability and safety of elevator parts, comprising a mounting base connected to an elevator shaft support; a cable limiter assembly, two of which are symmetrically arranged above and below and simultaneously connected to the mounting base; the cable limiter assembly comprising a sliding channel defined at the right end of the mounting base, with a sliding portion connected thereto. The mounting base employed in the present invention is used to secure the cable limiter assembly, a distance adjustment assembly, and a cable pushing assembly, effectively preventing the operator from tilting the cable during inspection due to an unstable holding of the inspection device, thereby ensuring the accuracy of the inspection results.

Description

Technical Field

[0001] The present invention relates to the technical field of elevator parts detection, and in particular to a device for detecting the reliability and safety of elevator parts. Background Art

[0002] An elevator is a complex electromechanical device that consists of many different components to ensure its proper operation. These components primarily include the car, door system, traction motor, guide rails, speed governor, buffer, control system, safety gear, counterweight, etc.

[0003] The elevator traction machine is mainly composed of a cable and a pulley group. In order to ensure the safe operation of the elevator, the cable needs to be tested after a period of use. The main purpose is to test the force and deformation of the cable, that is, tension detection. The existing technology usually uses a movable detection equipment to test the cable tension. During the test, the operator connects the detection equipment to the cable and manually rotates the feed bolt. The feed bolt drives the pressure sensor to push the cable to detect the cable tension. However, the operator holds the detection equipment for testing, and the detection equipment has low stability. The cable is prone to tilt during testing, resulting in low accuracy of the test results. In addition, the length of the cable test is fixed, the test data is single and has low applicability.

[0004] Therefore, there is an urgent need to provide a cable tension detection device that can fix the detection cable and adjust the detection length. Summary of the Invention

[0005] Based on this, it is necessary to provide a device for detecting the reliability and safety of elevator components, which aims to solve the problems caused by the tension of existing cables during tension detection.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions: an elevator component reliability and safety detection device, including: a mounting base connected to an elevator shaft bracket.

[0007] It also includes a cable limiting group, two of which are symmetrically arranged above and below and are simultaneously connected to the mounting seat, the cable limiting group includes a sliding channel opened at the right end of the mounting seat, a sliding part is connected in the sliding channel, a support rod in a horizontal state is installed on the sliding part, a limiting part for cable limiting is connected to the support rod, and a lifting part is connected to the rear end of the support rod.

[0008] The sliding channel is in a convex structure, and a plurality of limiting grooves are provided on two middle sections of the sliding channel.

[0009] The sliding portion includes a sliding plate slidably connected in the sliding channel, a sliding groove is provided at the right end of the sliding plate, a moving plate is slidably connected in the sliding groove, and a plurality of limiting protrusions that cooperate with corresponding limiting grooves are installed at the right end of the moving plate.

[0010] The limiting part includes a moving channel opened on the support rod, a traction plate is slidably connected through the moving channel, the left end of the traction plate is fixedly connected to the moving plate, and a connecting frame is installed on the right end of the traction plate, and a limiting roller is rotatably connected to the connecting frame.

[0011] It also includes a distance adjustment group, which is connected to the mounting seat and is used to adjust the distance between the two cable limiting groups.

[0012] Also included is a cable pushing group, which is arranged between the two cable limiting groups and is used to push the cables.

[0013] Preferably, the cable limiting group further includes a reinforcement rod whose two ends are respectively fixedly connected to the sliding plate and the support rod and are in an inclined state.

[0014] Preferably, the distance adjustment group includes a bidirectional drive motor fixedly connected to the mounting base via a motor base, and both output shafts of the bidirectional drive motor are equipped with pitch-adjusting screws.

[0015] Preferably, the cable pushing group includes a hydraulic push rod installed in the middle of the right end of the mounting seat, the hydraulic push rod is located between the two support rods, a pressure sensor is installed at the right end of the hydraulic push rod, the right end of the pressure sensor is rotatably connected to a pushing roller through a roller frame, and a blocking part is connected to the front end of the roller frame.

[0016] Preferably, the sliding portion further comprises two guide grooves provided on the front and rear walls of the sliding groove, wherein a guide block is slidably connected in the guide groove, the guide block is fixedly connected to the movable plate, and a plurality of reset springs are installed between the movable plate and the left wall of the sliding groove.

[0017] Preferably, the limiting portion further includes a limiting seat installed at the right end of the middle section of the connecting frame.

[0018] Preferably, the lifting part includes a lifting plate installed at the rear end of the support rod, an adjustment through hole is opened on the lifting plate, a fine-tuning groove is opened in the middle section of the adjustment through hole, an adjustment plate is slidably connected in the fine-tuning groove, and a plurality of stabilizing springs are installed between the upper and lower ends of the adjustment plate and the upper and lower groove walls of the fine-tuning groove respectively, a threaded sleeve is installed through the middle of the adjustment plate, and the threaded sleeve is threadedly connected to the pitch adjusting screw.

[0019] Preferably, the blocking part includes two sliding through holes opened at the left end of the mounting seat and symmetrically distributed up and down, the sliding through holes are connected to the corresponding sliding channels, a positioning seat is installed at the front end of the mounting seat, the middle part of the positioning seat slides horizontally through the limiting rod, and a limiting block is provided on the sliding sleeve at the right side of the limiting rod, and the limiting block is fixedly connected to the front end of the roller frame.

[0020] Preferably, the blocking part also includes a transverse plate fixedly connected to the left end of the limiting rod, and the upper and lower ends of the transverse plate are hinged with connecting rods, and the end of the connecting rod away from the transverse plate passes through the corresponding sliding hole and is hinged to the corresponding sliding plate.

[0021] Preferably, connecting ear seats for fixed connection with the elevator shaft bracket are respectively installed at the upper and lower ends of the mounting seat.

[0022] In summary, the present invention includes the following beneficial technical effects: 1. The distance adjustment group used in the present invention cooperates with the cable limit group to adjust the detection length, which not only increases the diversity of cable detection data, but also improves the applicability of the detection device.

[0023] 2. The mounting seat used in the present invention is used to fix the cable limit group, the distance adjustment group and the cable pushing group, which effectively avoids the phenomenon of tilting of the cable during detection due to the operator's unstable hand-held detection device, thereby ensuring the accuracy of the detection results.

[0024] 3. The cable limiter group used in the present invention further accurately adjusts and limits the position during cable detection, effectively improving the stability of the cable force during detection, and can avoid the phenomenon of cable cornering, thereby improving the effect of cable detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0026] Figure 1 A schematic diagram of the three-dimensional structure of the present invention from a first viewing angle is shown.

[0027] Figure 2 A schematic diagram of the three-dimensional structure of the present invention from a second viewing angle is shown.

[0028] Figure 3 A front view of the present invention is shown.

[0029] Figure 4 A left side view of the present invention is shown.

[0030] Figure 5 Shown Figure 3 Cross-sectional view of AA in the figure.

[0031] Figure 6 Shown Figure 5 Magnified view of area D in the middle.

[0032] Figure 7 Shown Figure 3 Cross-sectional view of the BB.

[0033] Figure 8 Shown Figure 4 Cross-sectional view of CC.

[0034] Figure 9 A top cross-sectional view of a sliding portion of the present invention is shown.

[0035] The above drawings include the following reference numerals: 1. mounting seat; 10. connecting ear seat; 2. cable limiting group; 20. sliding channel; 200. limiting groove; 21. sliding portion; 210. sliding plate; 211. sliding groove; 212. moving plate; 213. limiting protrusion; 214. guide groove; 215. guide block; 216. return spring; 22. support rod; 23. limiting portion; 230. moving channel; 231. traction plate; 232. connecting frame; 233. limiting roller; 234. limiting Position seat; 24. Lifting part; 240. Lifting plate; 241. Adjusting plate; 242. Stabilizing spring; 243. Threaded sleeve; 244. Fine-tuning slot; 25. Reinforcement rod; 3. Distance adjustment group; 30. Bidirectional drive motor; 31. Pitch adjustment screw; 4. Cable pushing group; 40. Hydraulic push rod; 41. Pressure sensor; 42. Pushing roller; 43. Blocking part; 430. Sliding through hole; 431. Limit block; 432. Limit rod; 433. Positioning seat; 434. Transverse plate; 435. Connecting rod. DETAILED DESCRIPTION

[0036] To make the above-mentioned objects, features, and advantages of the present invention more readily apparent, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings. The following description sets forth numerous specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0037] See Figures 1-4 A device for detecting the reliability and safety of elevator components includes a mounting base 1 connected to an elevator shaft bracket, wherein the upper and lower ends of the mounting base 1 are respectively provided with connecting ear seats 10 for fixed connection with the elevator shaft bracket.

[0038] In the specific work, before installing the elevator, the two connecting ear seats 10 on the mounting seat 1 are fixedly connected to the brackets fixed on the elevator shaft through existing bolts, so as to fix and limit the mounting seat 1, and then the elevator is installed in the elevator shaft.

[0039] See Figure 1 、 Figure 2 and Figure 8 The elevator component reliability and safety detection device also includes a cable limiting group 2, two of which are symmetrically arranged above and below and are simultaneously connected to the mounting seat 1. The cable limiting group 2 includes a sliding channel 20 opened at the right end of the mounting seat 1, and a sliding part 21 is connected to the sliding channel 20. A support rod 22 in a horizontal state is installed on the sliding part 21, and a limiting part 23 for cable limiting is connected to the support rod 22.

[0040] See Figure 1 、 Figure 2 and Figure 8 The limiting portion 23 includes a moving channel 230 opened on the support rod 22, and a traction plate 231 is slidably connected in the moving channel 230. A connecting frame 232 is installed at the right end of the traction plate 231, and a limiting roller 233 is rotatably connected to the connecting frame 232. The limiting portion 23 also includes a limiting seat 234 installed at the right end of the middle section of the connecting frame 232, and an arc groove is opened at the right end of the limiting seat 234.

[0041] In specific operation, when the elevator is installed, the cable used in the elevator car is passed between the upper limit seat 234 and the limit roller 233, and then passed out between the lower limit seat 234 and the limit roller 233. When not tested, the two limit seats 234 and the two limit rollers 233 guide the sliding of the cable. The diameter of the channel formed by the arc groove at the right end of the limit seat 234 and the limit roller 233 is larger than the diameter of the cable, avoiding friction loss during the use of the cable. The detection device fixedly installed on the elevator shaft can reduce the steps of connecting the cable during each test, and the operator holding the detection equipment causes the cable to tilt during detection, thereby ensuring the accuracy of the test results.

[0042] See Figure 1 The elevator component reliability and safety detection device also includes a cable pushing group 4 for pushing the cable, and the cable pushing group 4 is arranged between the two cable limit groups 2.

[0043] See Figure 1 、 Figure 2 and Figure 7 The cable pushing group 4 includes a hydraulic push rod 40 installed in the middle of the right end of the mounting seat 1. The hydraulic push rod 40 is located between the two support rods 22. A pressure sensor 41 is installed at the right end of the hydraulic push rod 40. The right end of the pressure sensor 41 is rotatably connected to a pushing roller 42 through a roller frame, and a blocking part 43 is connected to the front end of the roller frame.

[0044] During specific operation, the hydraulic push rod 40 is connected to the existing hydraulic pump, and then the pressure sensor 41 is connected to the existing power supply, controller and display electrical signal. When the cable passes through the two limit seats 234 and the two limit rollers 233, it is in contact with the pushing roller 42. When not detected, the pushing roller 42 cooperates with the two limit seats 234 and the two limit rollers 233, and at the same time guides the sliding of the cable. After the elevator has been used for a period of time, the initial length of the cable is detected, and the hydraulic push rod 40 is started. The hydraulic push rod 40 drives the roller frame to move through the pressure sensor 41, and the roller frame drives the pushing roller 42 to push the cable. The cable is subjected to force to push the two limit rollers 233, and the two limit rollers 233 drive the two traction plates 231 to move.

[0045] See Figure 2 and Figure 8 The sliding channel 20 is a convex structure, and a plurality of limiting grooves 200 are provided on the two middle sections of the sliding channel 20.

[0046] See Figure 8 and Figure 9 The sliding portion 21 includes a sliding plate 210 that is slidably connected to the sliding channel 20. A sliding groove 211 is provided at the right end of the sliding plate 210. A movable plate 212 is slidably connected to the sliding groove 211. A plurality of limiting protrusions 213 that cooperate with the corresponding limiting grooves 200 are installed at the right end of the movable plate 212. The left end of the traction plate 231 is fixedly connected to the movable plate 212.

[0047] See Figure 8 and Figure 9 The sliding portion 21 also includes two guide grooves 214 opened on the front and rear groove walls of the sliding groove 211, and a guide block 215 is slidably connected in the guide groove 214. The guide block 215 is fixedly connected to the movable plate 212, and a plurality of return springs 216 are installed between the movable plate 212 and the left groove wall of the sliding groove 211.

[0048] See Figure 1 and Figure 8 The cable limiting group 2 also includes a reinforcement rod 25 whose two ends are fixedly connected to the sliding plate 210 and the support rod 22 and are in an inclined state.

[0049] During specific operation, the two traction plates 231 drive the two moving plates 212 to slide in the corresponding two sliding grooves 211, and the moving plate 212 moves in the corresponding two guide grooves 214 through the two guide blocks 215 at the same time. The moving plate 212 drives the corresponding multiple limiting protrusions 213 to engage with the corresponding limiting grooves 200 and stretch the multiple return springs 216, further realizing the function of limiting the sliding plate 210, effectively improving the accuracy of the position of the support rod 22 and the limiting part 23, ensuring the accuracy of the cable detection length, thereby improving the accuracy of the detection result. At the same time, a stable triangular structure is formed between the support rod 22, the reinforcement rod 25 and the sliding plate 210 to achieve the stability of the support of the limiting part 23, thereby improving the stability of the force applied to the cable during detection. During cable detection, the limiting roller 233 can effectively adapt to the degree of cable bending during the detection process and increase the contact area with the cable, effectively avoiding the phenomenon of cable corner folding, thereby avoiding damage to the cable during the detection process.

[0050] When multiple limiting protrusions 213 are engaged with the corresponding limiting grooves 200, the position of the limiting roller 233 no longer moves, and then the pushing roller 42 continues to push the cable. The cable is bent under force and exerts pressure on the pressure sensor 41. The pressure sensor 41 is stressed and sends an electrical signal to the controller. The controller controls the display to display the corresponding value through the electrical signal. This is the existing technology. When the pressure sensor 41 reaches the preset threshold, the condition of the cable is observed and the detection results are recorded. If the cable does not change, the cable continues to be used. If the cable shrinks, the cable is replaced.

[0051] See Figure 1 、 Figure 2 and Figure 7 The blocking portion 43 includes two sliding through holes 430 that are opened at the left end of the mounting seat 1 and are symmetrically distributed up and down. The sliding through holes 430 are connected to the corresponding sliding channels 20. A positioning seat 433 is installed at the front end of the mounting seat 1. The middle part of the positioning seat 433 slides horizontally through the limiting rod 432. A limiting block 431 is provided on the sliding sleeve on the right side of the limiting rod 432. The limiting block 431 is fixedly connected to the front end of the roller frame.

[0052] See Figure 1 、 Figure 2 and Figure 7 The blocking part 43 also includes a transverse plate 434 fixedly connected to the left end of the limiting rod 432, and the upper and lower ends of the transverse plate 434 are hinged with connecting rods 435. The end of the connecting rod 435 away from the transverse plate 434 passes through the corresponding sliding hole 430 and is hinged to the corresponding sliding plate 210.

[0053] During specific operation, the limit rod 432 is a horizontal T-shaped structure. The distance of the right end of the limit rod 432 in the initial state is the farthest distance that the pushing roller 42 moves in this inspection, and it is also the maximum value of the force on the cable in the cable tension test, so as to avoid damage to the qualified cable during the test. The hydraulic push rod 40 drives the roller frame to move through the pressure sensor 41 and drives the limit block 431 to move at the same time. The limit block 431 cooperates with the vertical section of the limit rod 432 to realize the function of limiting the length of the roller frame movement.

[0054] When the cable tension test of the detection length is completed, the hydraulic push rod 40 drives the roller frame to reset through the pressure sensor 41, and then drives the pushing roller 42 to reset. The multiple reset springs 216 in the stretched state reset and drive the movable plate 212 to reset, thereby releasing the clamping state between the limit protrusion 213 and the corresponding limit groove 200, facilitating the subsequent sliding of the sliding plate 210.

[0055] See Figure 1 、 Figure 2 and Figure 5 The elevator component reliability and safety detection device also includes a distance adjustment group 3, which is connected to the mounting seat 1 and is used to adjust the distance between the two cable limit groups 2.

[0056] See Figure 1 、 Figure 2 and Figure 5 The distance adjustment group 3 includes a bidirectional drive motor 30 fixedly connected to the mounting base 1 through a motor base, and a distance adjustment screw 31 is installed on both output shafts of the bidirectional drive motor 30.

[0057] See Figure 1 、 Figure 2 、 Figure 5 and Figure 6 The rear end of the support rod 22 is connected to a lifting part 24, and the lifting part 24 includes a lifting plate 240 installed at the rear end of the support rod 22. An adjustment through hole is opened on the lifting plate 240, and a fine-tuning groove 244 is opened in the middle section of the adjustment through hole. An adjustment plate 241 is slidably connected in the fine-tuning groove 244. A plurality of stabilizing springs 242 are installed between the upper and lower ends of the adjustment plate 241 and the upper and lower groove walls of the fine-tuning groove 244 respectively. A threaded sleeve 243 is installed through the middle of the adjustment plate 241, and the threaded sleeve 243 is threadedly connected to the pitch adjustment screw 31.

[0058] During specific operation, the bidirectional drive motor 30 is an existing dual-axis motor. The bidirectional drive motor 30 is connected to the existing power supply. After the initial length detection of the cable is completed, the bidirectional drive motor 30 is started. The bidirectional drive motor 30 drives the two pitch-adjusting screws 31 to rotate, and the two pitch-adjusting screws 31 drive the two threaded sleeves 243 to move. The threaded sleeves 243 push the lifting plate 240 through the adjusting plate 241, and the lifting plate 240 drives the corresponding support rod 22 to move. The support rod 22 drives the sliding plate 210 to slide in the sliding channel 20. The two sliding plates 210 slide while driving the two connecting rods 435 to move. The two connecting rods 435 drive the limit rod 432 to move on the positioning seat 433 and the limit block 431 through the transverse plate 434, so that it meets the requirements of the maximum force of the cable in the subsequent tension detection.

[0059] When the support rod 22 moves to the desired position, the previous cable tension detection steps are repeated. During the process of re-engaging the multiple limit protrusions 213 with the corresponding limit grooves 200, if the bidirectional drive motor 30 drives the support rod 22 to stop moving, and the position of the support rod 22 is inaccurate due to the bidirectional drive motor 30 itself, the sliding plate 210 drives the support rod 22 to move, and the support rod 22 drives the fine-tuning groove 244 to move on the adjustment plate 241 through the lifting plate 240, thereby achieving fine-tuning of the position of the support rod 22 to ensure that it is in the precise position for detection, and then repeat the previous cable detection steps and record the detection results.

[0060] Then repeat the previous steps of adjusting the distance between the two support rods 22 and the cable detection steps until the cable tension at different lengths is tested, which effectively increases the test samples and further improves the accuracy of the test results. At the same time, the cable detection position can be adjusted, which effectively improves the applicability of the detection equipment and the detection is completed.

[0061] In the description of the embodiments of the present invention, it should be noted that the terms "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "top", "bottom", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the embodiments of the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance. In addition, in the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0062] In the description of the present invention, it should also be noted that, unless otherwise expressly specified or limited, the terms "disposed," "installed," and "connected" should be understood broadly. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0063] The embodiments of this specific implementation method are all preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. An elevator component reliability safety detection device, characterized in that: include: A mounting base connected to the elevator shaft bracket; The cable limiting group is symmetrically provided with two cables, and is connected to the mounting seat at the same time. The cable limiting group includes a sliding channel opened at the right end of the mounting seat, a sliding part is connected in the sliding channel, a support rod in a horizontal state is installed on the sliding part, a limiting part for limiting the cable is connected to the support rod, and a lifting part is connected to the rear end of the support rod; The sliding channel is a convex structure, and a plurality of limiting grooves are provided on the two middle sections of the sliding channel; The sliding portion includes a sliding plate slidably connected to the sliding channel, a sliding groove is provided at the right end of the sliding plate, a movable plate is slidably connected in the sliding groove, and a plurality of limiting protrusions that cooperate with corresponding limiting grooves are installed at the right end of the movable plate; The limiting part includes a moving channel opened on the support rod, a traction plate is slidably connected through the moving channel, the left end of the traction plate is fixedly connected to the moving plate, and a connecting frame is installed on the right end of the traction plate, and the connecting frame is rotatably connected to the limiting roller; A distance adjustment group, connected to the mounting base and used to adjust the distance between the two cable limit groups; A cable pushing group is provided between the two cable limiting groups and is used to push the cable; The distance adjustment group includes a bidirectional drive motor fixedly connected to the mounting base via a motor base, and both output shafts of the bidirectional drive motor are equipped with a pitch adjustment screw; The lifting part includes a lifting plate installed at the rear end of the support rod, an adjustment through hole is opened on the lifting plate, a fine-tuning groove is opened in the middle section of the adjustment through hole, an adjustment plate is slidably connected in the fine-tuning groove, and a plurality of stabilizing springs are installed between the upper and lower ends of the adjustment plate and the upper and lower groove walls of the fine-tuning groove respectively, a threaded sleeve is installed through the middle of the adjustment plate, and the threaded sleeve is threadedly connected to the pitch adjustment screw.

2. The elevator component reliability safety detection device according to claim 1, characterized in that: The cable limiting group also includes a reinforcement rod with two ends respectively fixedly connected to the sliding plate and the support rod and in an inclined state.

3. The elevator component reliability safety detection device according to claim 1, characterized in that: The cable pushing group includes a hydraulic push rod installed in the middle of the right end of the mounting seat, the hydraulic push rod is located between the two support rods, a pressure sensor is installed on the right end of the hydraulic push rod, the right end of the pressure sensor is rotatably connected to a pushing roller through a roller frame, and a blocking part is connected to the front end of the roller frame.

4. The elevator component reliability safety detection device according to claim 1, characterized in that: The sliding part also includes two guide grooves opened on the front and rear groove walls of the sliding groove, and a guide block is slidably connected in the guide groove. The guide block is fixedly connected to the moving plate, and multiple reset springs are installed between the moving plate and the left groove wall of the sliding groove.

5. The elevator component reliability safety detection device according to claim 1, characterized in that: The limiting portion also includes a limiting seat installed at the right end of the middle section of the connecting frame.

6. The elevator component reliability safety detection device according to claim 3, characterized in that: The blocking part includes two sliding through holes which are opened at the left end of the mounting seat and are symmetrically distributed up and down. The sliding through holes are connected to the corresponding sliding channels. A positioning seat is installed at the front end of the mounting seat. The middle part of the positioning seat slides horizontally through the limiting rod. A limiting block is provided on the sliding sleeve at the right side of the limiting rod. The limiting block is fixedly connected to the front end of the roller frame.

7. The elevator component reliability safety detection device according to claim 6, characterized in that: The blocking part also includes a transverse plate fixedly connected to the left end of the limiting rod, and the upper and lower ends of the transverse plate are hinged with connecting rods, and the end of the connecting rod away from the transverse plate passes through the corresponding sliding through hole and is hinged to the corresponding sliding plate.

8. The elevator component reliability safety detection device according to claim 1, characterized in that: The upper and lower ends of the mounting seat are respectively provided with connecting ear seats for fixed connection with the elevator shaft bracket.

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