Elevator safety tongs testing equipment
By using the combination of guide columns, guide grooves, and inclined plates, the activation of the safety clamp and its contact with the elevator guide rail during the descent of the elevator car are simulated. This solves the problem that existing technologies cannot simulate the descent process of the elevator car, and enables effective evaluation of the safety clamp's performance and model adaptability testing.
Patent Information
- Application Number
- CN202423264705.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2025-11-14
- Estimated Expiration
- 2034-12-30
AI Technical Summary
Existing elevator safety clamp testing devices cannot simulate the activation of the safety clamp and its contact with the elevator guide rail during the descent of the elevator car, and the operation is cumbersome when changing different models of safety clamps or elevator guide rails.
An elevator safety clamp testing device was designed. Through the cooperation of guide column, guide groove and inclined plate, the device simulates the activation of the safety clamp and its contact with the elevator guide rail during the descent of the elevator car. The device drives the sliding seat to slide through the drive component, uses a tension sensor to detect the clamping force, and combines the adjustment component to adjust the position of the inclined plate to accommodate different models of safety clamps.
It enables effective evaluation of the safety clamp performance, simulates the clamping state during elevator descent, and facilitates the replacement of different models of safety clamps and elevator guide rails, improving the convenience and accuracy of testing.
Smart Images
Figure CN223551323U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of elevator safety clamp technology, specifically to an elevator safety clamp testing device. Background Technology
[0002] Safety clamps are safety protection devices for elevators. Under the control of the speed governor, when the elevator speed exceeds the speed limit set by the speed governor, or in the event of a breakage or slack in the suspension rope, the safety clamp will bring the car to an emergency stop and clamp it onto the guide rails. It provides effective protection for the safe operation of the elevator.
[0003] During the production and R&D phases, safety clamps typically undergo testing to ensure they can securely clamp the elevator guide rails and provide sufficient clamping force to stop the elevator car's movement. Currently, existing testing equipment usually involves directly clamping the safety clamps to the elevator guide rails, which are then connected to a tension sensor. The performance of the safety clamp is evaluated by observing whether it maintains its clamping position or experiences relative slippage after reaching a preset tension value. However, this testing method cannot simulate the activation of the safety clamps and their contact with the elevator guide rails during elevator car descent, and the process is cumbersome when testing with different models of safety clamps or elevator guide rails. Utility Model Content
[0004] The purpose of this utility model is to provide an elevator safety clamp testing device. Through the cooperation of guide column, guide groove and inclined plate, the safety clamp clamps the elevator guide rail during the test and simulates the elevator car descending process. The safety clamp starts to contact the elevator guide rail. This design is highly practical.
[0005] To achieve the above objectives, this utility model provides the following technical solution: an elevator safety clamp testing device, comprising a mounting base with a mounting groove, a sliding seat vertically slidably disposed within the mounting groove, and a safety clamp disposed on the sliding seat; a driving assembly disposed on the mounting base for driving the sliding seat to slide; a fixed base disposed on the mounting base, a tension sensor disposed on the fixed base, and an elevator guide rail disposed below the tension sensor; a guiding assembly disposed on the mounting base and located in front of the mounting groove, the guiding assembly including a guide post disposed on the eccentric wheel of the safety clamp, a plurality of fixed posts disposed on the mounting base, a guide plate commonly disposed on the plurality of fixed posts, a vertically arranged guide groove being formed on the guide plate, the guide post slidingly engaging with the guide groove, and an inclined plate slidably disposed below the guide plate; and an adjusting assembly disposed on the guide plate for adjusting the sliding position of the inclined plate.
[0006] Preferably, mounting plates are provided on both sides of the guide plate, and two inclined guide rods are vertically spaced between the two mounting plates. A connecting block is provided on the inclined plate, and two guide holes are provided on the connecting block. The guide holes are slidably connected to the corresponding guide rods.
[0007] Preferably, the adjusting assembly includes: a first threaded rod, which is rotatably disposed between the two mounting plates and parallel to the guide rod, and the connecting block is helically connected to the first threaded rod through a threaded hole; and a handle, one end of the first threaded rod passing through the mounting plate, and the handle being connected to the end of the first threaded rod passing through the mounting plate.
[0008] Preferably, a slide rail is vertically arranged on the mounting base between the fixed base and the mounting groove, a sliding block is slidably arranged on the slide rail, the sliding block is connected to the tension sensor, and the upper end of the elevator guide rail is connected to the sliding block.
[0009] Preferably, the sliding block is provided with a plurality of first screw holes, and the elevator guide rail is provided with through holes corresponding to the first screw holes. Screws pass through the through holes and are screwed into the corresponding first screw holes to fix the elevator guide rail and the sliding block. The sliding seat is provided with a plurality of second screw holes, and the safety clamp is provided with a plurality of mounting holes. Screws pass through the mounting holes and are screwed into the corresponding second screw holes to fix the safety clamp and the sliding seat.
[0010] Preferably, two vertically arranged slide rods are horizontally spaced within the mounting groove, and two vertically formed sliding holes are provided on the sliding seat, with the sliding holes slidably connected to the corresponding slide rods.
[0011] Preferably, the drive assembly includes: a second threaded rod, which is rotatably disposed in the mounting groove and parallel to the slide rod, and the sliding seat is helically engaged with the second threaded rod through a threaded hole; and a drive motor, which is vertically disposed on the mounting seat, and the output axis of the drive motor is axially upward and connected to the end of the second threaded rod.
[0012] Compared with existing technologies, the beneficial effects of this utility model are as follows: When the safety clamp is tested, the elevator guide rail is located between the eccentric wheel and the brake plate. The sliding seat is driven downward by the drive assembly. At this time, the guide column slides in the guide groove. When the guide column contacts the inclined plate, the guide column slides along the upper edge of the inclined plate, driving the eccentric wheel to rotate, so that the eccentric wheel and the brake plate clamp the elevator guide rail. At this time, the guide column contacts the side edge of the inclined plate, simulating the safety clamp starting and contacting the elevator guide rail during the descent of the elevator car. The drive assembly continues to drive the sliding seat to slide downward. The tension sensor detects the tension on the guide rail. After reaching the specified tension value, the operator observes whether the safety clamp can still maintain the clamped state or whether relative sliding occurs, thereby testing whether the friction between the safety clamp and the elevator guide rail is sufficient and evaluating the performance of the safety clamp. The position of the inclined plate can be adjusted by adjusting the assembly, thereby adjusting the rotation range of the guide column, which is convenient for adjustment according to different models of safety clamps. Attached Figure Description
[0013] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0014] Figure 2 This is a schematic diagram of the structure of the mounting base and sliding base of this utility model;
[0015] Figure 3 This is a schematic diagram of the structure of the guide component of this utility model.
[0016] In the diagram: 10. Mounting base; 11. Mounting groove; 12. Sliding seat; 13. Sliding rod; 20. Safety clamp; 21. Mounting component; 22. Eccentric wheel; 23. Brake plate; 24. Mounting hole; 30. Drive assembly; 31. Second threaded rod; 32. Drive motor; 40. Fixed seat; 41. Tension sensor; 50. Elevator guide rail; 51. Through hole; 60. Guide assembly; 61. Guide column; 62. Fixed column; 63. Guide plate; 64. Guide groove; 65. Inclined plate; 70. Adjustment assembly; 71. First threaded rod; 72. Handle; 80. Mounting plate; 81. Guide rod; 82. Connecting block; 90. Slide rail; 91. Sliding block; 92. First screw hole. Detailed Implementation
[0017] In the description of this utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. The various embodiments of this utility model are described in detail below with reference to the accompanying drawings.
[0018] Please see Figures 1 to 3 The present invention preferably provides the following technical solution: an elevator safety clamp testing device, comprising a mounting base 10, a mounting groove 11 on the mounting base 10, a sliding seat 12 vertically slidably disposed within the mounting groove 11, and a safety clamp 20 disposed on the sliding seat 12; a drive assembly 30 disposed on the mounting base 10 for driving the sliding seat 12 to slide; a fixed base 40 disposed on the mounting base 10, a tension sensor 41 disposed on the fixed base 40, and an elevator guide rail 50 disposed below the tension sensor 41; and a guide assembly 60 for guiding... The guide assembly 60 is mounted on the mounting base 10 and located in front of the mounting groove 11. The guide assembly 60 includes a guide post 61 mounted on the eccentric wheel 22 of the safety clamp 20. The mounting base 10 is provided with a plurality of fixed posts 62, and a guide plate 63 is provided on the plurality of fixed posts 62. The guide plate 63 is provided with a vertically arranged guide groove 64. The guide post 61 is slidably engaged with the guide groove 64. An inclined plate 65 is slidably mounted on the lower side of the guide plate 63. An adjustment assembly 70 is provided on the guide plate 63 for adjusting the sliding position of the inclined plate 65.
[0019] The safety clamp 20 includes a mounting component 21, an eccentric wheel 22, and a brake plate 23. The eccentric wheel 22 is rotatably mounted on the mounting component 21, and the brake plate 23 is fixedly mounted on the mounting component 21. The height of the side of the upper edge of the inclined plate 65 adjacent to the elevator guide rail 50 is lower than the height of the side away from the elevator guide rail 50, and the side edge of the inclined plate 65 is vertical.
[0020] In this invention, during the testing of the safety clamp 20, the elevator guide rail 50 is positioned between the eccentric wheel 22 and the brake plate 23. The sliding seat 12 is driven downwards by the drive assembly 30. At this time, the guide post 61 slides within the guide groove 64. When the guide post 61 contacts the inclined plate 65, it slides along the upper edge of the inclined plate 65, causing the eccentric wheel 22 to rotate. This causes the eccentric wheel 22 and the brake plate 23 to clamp the elevator guide rail 50. Simulating the descent of the elevator car, the safety clamp 20 initiates contact with the elevator guide rail 50. The drive assembly 30 continues to drive the sliding seat 12 downwards. The tension sensor 41 detects the tension on the elevator guide rail 50. After reaching a specified tension value, the operator observes whether the safety clamp 20 can maintain its clamped state or whether relative sliding occurs, thus testing whether the friction between the safety clamp 20 and the elevator guide rail 50 is sufficient, and evaluating the performance of the safety clamp 20. The position of the inclined plate 65 can be adjusted by adjusting the component 70, thereby adjusting the rotation range of the guide post 61, which is convenient for adjusting according to different models of safety clamps 20.
[0021] Furthermore, mounting plates 80 are provided on both sides of the guide plate 63, and two inclined guide rods 81 are vertically spaced between the two mounting plates 80. A connecting block 82 is provided on the inclined plate 65, and two guide holes are opened on the connecting block 82. The guide holes are slidably connected to the corresponding guide rods 81.
[0022] The guide rod 81 is parallel to the upper edge of the inclined plate 65.
[0023] Combination Figure 3 As shown, the guide rod 81 is disposed between the mounting plates 80 to limit the sliding of the connecting block 82, thereby ensuring the stability of the sliding of the inclined plate 65.
[0024] Furthermore, the adjustment assembly 70 includes: a first threaded rod 71, which is rotatably disposed between two mounting plates 80 and parallel to the guide rod 81, and a connecting block 82 is helically connected to the first threaded rod 71 through a threaded hole; and a handle 72, one end of the first threaded rod 71 passing through the mounting plate 80, and the handle 72 being connected to the end of the first threaded rod 71 passing through the mounting plate 80.
[0025] The first threaded rod 71 is rotatably connected to the corresponding mounting plate 80 on both sides.
[0026] like Figure 3 As shown, rotating the handle 72 causes the first threaded rod 71 to rotate. Since the connecting block 82 is spirally connected to the first threaded rod 71 through the threaded hole, the connecting block 82 causes the inclined plate 65 to move.
[0027] Furthermore, a slide rail 90 is vertically arranged on the mounting base 10 between the fixed base 40 and the mounting groove 11, and a sliding block 91 is slidably arranged on the slide rail 90. The sliding block 91 is connected to the tension sensor 41, and the upper end of the elevator guide rail 50 is connected to the sliding block 91.
[0028] like Figure 1 As shown, the safety clamp 20 pulls the elevator guide rail 50 downward. When the tension sensor 41 detects the tension on the elevator guide rail 50, the elevator guide rail 50 will move slightly downward. The slide rail 90 and the sliding block 91 restrict the movement of the elevator guide rail 50 to ensure the stability of the elevator guide rail 50.
[0029] Furthermore, the sliding block 91 is provided with a plurality of first screw holes 92, and the elevator guide rail 50 is provided with through holes 51 corresponding to the first screw holes 92. Screws pass through the through holes 51 and are screwed into the corresponding first screw holes 92 to fix the elevator guide rail 50 and the sliding block 91. The sliding seat 12 is provided with a plurality of second screw holes, and the safety clamp 20 is provided with a plurality of mounting holes 24. Screws pass through the mounting holes 24 and are screwed into the corresponding second screw holes to fix the safety clamp 20 and the sliding seat 12.
[0030] Mounting hole 24 is provided on mounting part 21.
[0031] like Figure 1 , 2 As shown, screws pass through through hole 51 and are screwed into corresponding first screw hole 92 to fix elevator guide rail 50 and sliding block 91, facilitating the installation and removal of elevator guide rail 50 and sliding block 91, thus making it more convenient to replace different models of elevator guide rail 50. Screws pass through mounting hole 24 and are screwed into corresponding second screw hole to fix safety clamp 20 and sliding seat 12, facilitating the installation and removal of safety clamp 20 and sliding seat 12, thus making it more convenient to replace different models of safety clamp 20.
[0032] Furthermore, two vertically arranged slide rods 13 are horizontally spaced within the mounting groove 11, and two vertically opened slide holes are provided on the sliding seat 12, with the slide holes slidably connected to the corresponding slide rods 13.
[0033] like Figure 1 , 2 As shown, the slide bar 13 restricts the sliding direction of the sliding seat 12 to ensure the sliding stability of the sliding seat 12.
[0034] Furthermore, the drive assembly 30 includes: a second threaded rod 31, which is rotatably disposed in the mounting groove 11 and parallel to the slide rod 13, and the sliding seat 12 is screwed into the second threaded rod 31 through a threaded hole; and a drive motor 32, which is vertically disposed on the mounting seat 10, and the output axis of the drive motor 32 is axially upward and connected to the end of the second threaded rod 31.
[0035] Both sides of the second threaded rod 31 are rotatably connected to the wall of the mounting groove 11.
[0036] like Figure 1 , 2 As shown, the drive motor 32 drives the second threaded rod 31 to rotate. Since the sliding seat 12 is screwed into the second threaded rod 31 through the threaded hole, the sliding seat 12 slides.
[0037] The operating principle of the elevator safety clamp testing device in this embodiment is as follows: The safety clamp 20 to be tested is installed on the sliding seat 12, and the elevator guide rail 50 to be tested is installed on the sliding block 91. Then, the drive motor 32 is started to drive the second threaded rod 31 to rotate, so that the sliding seat 12 and the safety clamp 20 slide downward. At this time, the guide column 61 slides in the guide groove 64. When the guide column 61 contacts the inclined plate 65, the guide column 61 slides along the upper edge of the inclined plate 65, driving the eccentric wheel 22 to rotate, so that the eccentric wheel 22 and the brake plate 23 clamp the elevator guide rail 50. At this time, the guide column 61 contacts the side edge of the inclined plate 65. The drive motor 32 continues to drive the safety clamp 20 to slide downward. The tension sensor 41 detects the tension on the elevator guide rail 50. After reaching the specified tension value, the staff observes whether the safety clamp 20 can still maintain the clamped state or whether relative sliding occurs, thereby testing whether the friction between the safety clamp 20 and the elevator guide rail 50 is sufficient, and evaluating the performance of the safety clamp 20.
[0038] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "connection", "fixation" and other terms should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral part. There are various ways to install detachably, such as by using a plug-in and snap-fit method, or by using a bolt connection, etc.
[0039] The above description of the specific embodiments of this utility model is only used to further illustrate this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-essential improvements and adjustments made to this utility model by technical engineers based on the above description of the utility model shall fall within the scope of protection of this utility model.
Claims
1. An elevator safety clamp testing device, characterized in that, include: Mounting base (10), the mounting base (10) is provided with mounting groove (11), a sliding seat (12) is vertically slidably arranged in the mounting groove (11), and a safety clamp (20) is provided on the sliding seat (12); A drive assembly (30) is disposed on the mounting base (10) for driving the sliding base (12) to slide; A fixed base (40) is provided on the mounting base (10), and a tension sensor (41) is provided on the fixed base (40). An elevator guide rail (50) is provided on the lower side of the tension sensor (41). A guide assembly (60) is disposed on the mounting base (10) and located in front of the mounting groove (11). The guide assembly (60) includes a guide post (61) disposed on the eccentric wheel (22) of the safety clamp (20). A plurality of fixed posts (62) are disposed on the mounting base (10). A guide plate (63) is disposed on the plurality of fixed posts (62). A vertically arranged guide groove (64) is opened on the guide plate (63). The guide post (61) is slidably engaged with the guide groove (64). An inclined plate (65) is slidably disposed on the lower side of the guide plate (63). An adjustment component (70) is disposed on the guide plate (63) for adjusting the sliding position of the inclined plate (65).
2. The elevator safety clamp testing device according to claim 1, characterized in that: The guide plate (63) is provided with mounting plates (80) on both sides. Two inclined guide rods (81) are vertically spaced between the two mounting plates (80). A connecting block (82) is provided on the inclined plate (65). Two guide holes are opened on the connecting block (82). The guide holes are slidably connected to the corresponding guide rods (81).
3. The elevator safety clamp testing device according to claim 2, characterized in that, The adjustment component (70) includes: The first threaded rod (71) is rotatably disposed between the two mounting plates (80) and parallel to the guide rod (81), and the connecting block (82) is helically connected to the first threaded rod (71) through a threaded hole; The handle (72) has one end of the first threaded rod (71) passing through the mounting plate (80), and the handle (72) is connected to the end of the first threaded rod (71) passing through the mounting plate (80).
4. The elevator safety clamp testing device according to claim 1, characterized in that: A slide rail (90) is vertically arranged on the mounting base (10) between the fixed base (40) and the mounting groove (11). A sliding block (91) is slidably arranged on the slide rail (90). The sliding block (91) is connected to the tension sensor (41). The upper end of the elevator guide rail (50) is connected to the sliding block (91).
5. The elevator safety clamp testing device according to claim 4, characterized in that: The sliding block (91) is provided with a plurality of first screw holes (92), and the elevator guide rail (50) is provided with through holes (51) corresponding to the first screw holes (92). Screws pass through the through holes (51) and are screwed into the corresponding first screw holes (92) to fix the elevator guide rail (50) and the sliding block (91). The sliding seat (12) is provided with a plurality of second screw holes, and the safety clamp (20) is provided with a plurality of mounting holes (24). Screws pass through the mounting holes (24) and are screwed into the corresponding second screw holes to fix the safety clamp (20) and the sliding seat (12).
6. The elevator safety clamp testing device according to claim 1, characterized in that: The mounting groove (11) has two vertically arranged sliding rods (13) arranged horizontally at intervals. The sliding seat (12) has two vertically opened sliding holes, and the sliding holes are slidably connected to the corresponding sliding rods (13).
7. The elevator safety clamp testing device according to claim 6, characterized in that, The driving component (30) includes: The second threaded rod (31) is rotatably disposed in the mounting groove (11) and parallel to the slide rod (13). The sliding seat (12) is screwed into the second threaded rod (31) through a threaded hole. A drive motor (32) is vertically mounted on a mounting base (10), and the output axis of the drive motor (32) is upward and connected to the end of the second threaded rod (31).