Lift car anti-falling detection device

Abstract

The utility model discloses a lift car anti-falling detection device which comprises a U-shaped plate, two clamping wheels are arranged in the U-shaped plate, U-shaped frames are arranged outside the two clamping wheels, the clamping wheels are connected with the U-shaped plate in a rotating mode, an adjusting mechanism used for adjusting the two clamping wheels is arranged on the U-shaped plate, cover plates are installed on two arms of the U-shaped plate in a rotating mode, and the cover plates are connected with the U-shaped plate in a rotating mode. Image collectors are arranged on the inner side walls of the cover plate and the U-shaped plate; and the driving mechanism is used for driving the two clamping wheels, the driving mechanism comprises through holes formed in the U-shaped plate, a sliding block is slidably connected into the two through holes, the sliding block is rotatably connected with two rotating shafts, the two rotating shafts are in transmission connection through a gear set, and a first motor is fixedly connected to the side wall of the sliding block. According to the utility model, the detection range of the steel cable is wide, the whole steel cable can be detected, and the detection efficiency is high.

Description

Technical Field

[0001] The utility model relates to the technical field of elevator car safety, in particular to an elevator car anti-fall detection device. Background Art

[0002] The car is a box-shaped space used by elevators to carry and transport people and materials. The car is generally composed of main components such as the car bottom, car walls, car roof, and car doors. It is the car body component used by the elevator to carry passengers, goods, and other loads. The car uses the upper and lower four guide rails of the car frame column to perform vertical lifting and lowering along the guide rails to complete its carrying function.

[0003] When inspecting the car, due to the long length of the steel cable, the inspection takes a long time. Moreover, during the inspection process, it is difficult to inspect the entire cable. It needs to be repeatedly inspected multiple times to fully inspect it, and the inspection efficiency is low.

[0004] To this end, we propose a car anti-fall detection device to solve the above problems. Utility Model Content

[0005] The purpose of the present utility model is to provide a car anti-fall detection device to solve the problems raised in the above background technology.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] A car anti-fall detection device includes a U-shaped plate, two clamping wheels are provided inside the U-shaped plate, and a U-shaped frame is provided outside the two clamping wheels. The clamping wheels are rotatably connected to the U-shaped plate, and the U-shaped plate is provided with an adjustment mechanism for adjusting the two clamping wheels. Cover plates are rotatably installed on the two arms of the U-shaped plate, and image collectors are provided on the cover plate and the inner wall of the U-shaped plate.

[0008] A driving mechanism is used to drive the two clamping wheels, and the driving mechanism includes a through hole arranged on the U-shaped plate, and sliders are slidably connected in the two through holes, and the sliders are rotatably connected to two rotating shafts, and the two rotating shafts are connected by a gear set. The side wall of the slider is fixedly connected to a first motor, and the driving shaft of the first motor rotates through the slider and is coaxially fixed with one of the rotating shafts. The intermediate shafts of the two clamping wheels both rotate and pass through the U-shaped frame. The rotating shafts on the same side and the intermediate shafts of the clamping wheels are connected by a first transmission mechanism, and the rotating shafts on the same side and the intermediate shafts of the clamping wheels are rotatably connected with the same connecting plate.

[0009] Furthermore, the adjusting mechanism includes two threaded rods, which are respectively fixedly connected to the side walls opposite to the two U-shaped frames, and the ends of the two threaded rods away from the U-shaped frame slide through the U-shaped plate. The external thread sleeve of the U-shaped plate is provided with a threaded sleeve, and the two threaded sleeves are rotatably connected to the U-shaped plate. The U-shaped plate is rotatably provided with a transmission shaft, and the transmission shaft and the two threaded sleeves are connected by a second transmission mechanism. A mounting plate is fixedly connected to the U-shaped plate, and a second motor is installed on the mounting plate. The drive shaft of the second motor is coaxially fixedly connected to the transmission shaft.

[0010] Furthermore, the gear set includes two transmission gears, and the two transmission gears are coaxially fixedly connected to the two rotating shafts respectively, and the two transmission gears are meshedly connected.

[0011] Furthermore, the first transmission mechanism includes a first pulley and a second pulley, the first pulley is coaxially fixedly connected to the rotating shaft, the second pulley is coaxially fixedly connected to the intermediate shaft of the clamping wheel, and the first pulley and the second pulley are connected through a synchronous belt transmission.

[0012] Furthermore, the second transmission mechanism includes a third pulley and a fourth pulley, the third pulley is coaxially fixedly connected to the transmission shaft, the fourth pulley is coaxially fixedly connected to the threaded sleeve, and the third pulley and the fourth pulley are connected via a synchronous belt transmission.

[0013] Furthermore, the external threads of the two threaded rods have opposite rotation directions.

[0014] Furthermore, the two image collectors are fixedly mounted on the cover plate and the slider respectively.

[0015] Compared with the prior art, the beneficial effects of the present invention are at least:

[0016] By setting a driving mechanism and an adjusting mechanism, the second motor drives the transmission shaft to rotate, the transmission shaft drives the two threaded sleeves to rotate, the two threaded sleeves drive the two threaded rods to move relative to each other, and the two threaded rods drive the clamping wheels to move relative to each other through two U-shaped frames until the two clamping wheels are clamped with the steel cable. Even steel cables of different sizes can be detected, and the detection range is wide. Then, the first motor drives the two rotating shafts to move relative to each other, and the two rotating shafts drive the two clamping wheels to rotate. The clamping wheels roll along the steel cable, and the entire steel cable can be detected through two image collectors. There is no need to repeatedly detect the steel cable, and the detection efficiency of the steel cable is high.

[0017] The utility model has a wide detection range for the steel cable, can detect the entire steel cable, and has high detection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1This is a schematic diagram of the front structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the top structure of the utility model;

[0020] Figure 3 This is a rear view structural diagram of the utility model;

[0021] Figure 4 It is a front structural perspective view of the present utility model.

[0022] As shown in the figure: 1. U-shaped plate; 2. Clamping wheel; 3. U-shaped frame; 4. Adjustment mechanism; 5. Cover plate; 6. Image collector; 7. Drive mechanism; 8. Through hole; 9. Slider; 10. Rotating shaft; 11. Gear set; 12. First motor; 13. First transmission mechanism; 14. Connecting plate; 15. Threaded rod; 16. Threaded sleeve; 17. Transmission shaft; 18. Second transmission mechanism; 19. Mounting plate; 20. Second motor; 21. Transmission gear; 22. First pulley; 23. Second pulley; 24. Third pulley; 25. Fourth pulley. DETAILED DESCRIPTION

[0023] The present invention will be described in detail below with reference to the specific embodiments shown in the accompanying drawings. However, these embodiments do not limit the present invention, and any structural, methodological, or functional modifications made by a person skilled in the art based on these embodiments are all within the scope of protection of the present invention.

[0024] See also Figures 1 to 4 , a car anti-fall detection device includes a U-shaped plate 1, two clamping wheels 2 are provided inside the U-shaped plate 1, and U-shaped frames 3 are provided outside the two clamping wheels 2. The clamping wheels 2 are rotatably connected to the U-shaped plate 1, and the U-shaped plate 1 is provided with an adjusting mechanism 4 for adjusting the two clamping wheels 2. Specifically, the adjusting mechanism 4 includes two threaded rods 15. It should be noted that the external threads of the two threaded rods 15 are rotated in opposite directions. The two threaded rods 15 are respectively fixedly connected to the side walls opposite to each other of the two U-shaped frames 3, and the ends of the two threaded rods 15 away from the U-shaped frames 3 are both slid through the U-shaped plate 1. The external thread sleeve of the U-shaped plate 1 is provided with a threaded sleeve 16. The two threaded sleeves 16 are both rotatably connected to the U-shaped plate 1, and the U-shaped plate 1 is rotatably penetrated by a transmission shaft 17.

[0025] In this embodiment, the transmission shaft 17 and the two threaded sleeves 16 are connected by a second transmission mechanism 18. It should be noted that the second transmission mechanism 18 includes a third pulley 24 and a fourth pulley 25. The third pulley 24 is coaxially fixedly connected to the transmission shaft 17, and the fourth pulley 25 is coaxially fixedly connected to the threaded sleeve 16. The third pulley 24 and the fourth pulley 25 are connected by a synchronous belt transmission. A mounting plate 19 is fixedly connected to the U-shaped plate 1, and a second motor 20 is mounted on the mounting plate 19. The drive shaft of the second motor 20 is coaxially fixedly connected to the transmission shaft 17. The two arms of the U-shaped plate 1 are rotatably mounted with a cover plate 5. The cover plate 5 and the inner side wall of the U-shaped plate 1 are provided with an image collector 6. Furthermore, the two image collectors 6 are fixedly mounted to the cover plate 5 and the slider 9 respectively;

[0026] Through the above technical features, the second motor 20 drives the transmission shaft 17 to rotate, the transmission shaft 17 drives the two threaded sleeves 16 to rotate, the two threaded sleeves 16 drive the two threaded rods 15 to move relative to each other, and the two threaded rods 15 drive the clamping wheel 2 to move relative to each other through the two U-shaped frames 3, so that the clamping wheel 2 and the steel cable can be clamped according to the size of the steel cable.

[0027] The driving mechanism 7 is used to drive the two clamping wheels 2. The driving mechanism 7 includes a through hole 8 provided on the U-shaped plate 1. A slider 9 is slidably connected in the two through holes 8. The slider 9 is rotatably connected to two rotating shafts 10. The two rotating shafts 10 are connected by a gear set 11. Further, the gear set 11 includes two transmission gears 21. The two transmission gears 21 are coaxially fixedly connected to the two rotating shafts 10 respectively. The two transmission gears 21 are meshed and connected. The side wall of the slider 9 is fixedly connected to a first motor 12. The drive shaft of the first motor 12 rotates through the slider 9 and is coaxial with one of the rotating shafts 10. The shafts are fixedly connected, and the intermediate shafts of the two clamping wheels 2 rotate and pass through the U-shaped frame 3. The rotating shaft 10 and the intermediate shaft of the clamping wheel 2 on the same side are connected through a first transmission mechanism 13. It should be noted that the first transmission mechanism 13 includes a first pulley 22 and a second pulley 23. The first pulley 22 is coaxially fixedly connected to the rotating shaft 10, and the second pulley 23 is coaxially fixedly connected to the intermediate shaft of the clamping wheel 2. The first pulley 22 and the second pulley 23 are connected through a synchronous belt drive, and the rotating shaft 10 and the intermediate shaft of the clamping wheel 2 on the same side are rotatably connected with the same connecting plate 14.

[0028] Through the above technical features, the first motor 12 drives the two rotating shafts 10 to move relative to each other, and the two rotating shafts 10 drive the two clamping wheels 2 to rotate. The clamping wheels 2 roll along the steel cable, and the steel cable can be detected by the image collector 6.

[0029] Working principle: The transmission shaft 17 is driven to rotate by the second motor 20, and the transmission shaft 17 drives the two threaded sleeves 16 to rotate. The two threaded sleeves 16 drive the two threaded rods 15 to move relative to each other. The two threaded rods 15 drive the clamping wheels 2 to move relative to each other through the two U-shaped frames 3. The clamping wheels 2 and the steel cable can be clamped according to the size of the steel cable. The two rotating shafts 10 are driven to move relative to each other by the first motor 12. The two rotating shafts 10 drive the two clamping wheels 2 to rotate. The clamping wheels 2 roll along the steel cable, and the steel cable can be detected by the image collector 6.

[0030] It should be understood that although this specification is described according to embodiments, not every embodiment contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

[0031] The series of detailed descriptions listed above are only specific descriptions of feasible implementation methods of the present invention. They are not intended to limit the scope of protection of the present invention. Any equivalent implementation methods or changes that do not deviate from the technical spirit of the present invention should be included in the scope of protection of the present invention.

Claims

1. A car anti-fall detection device, characterized in that: include, A U-shaped plate (1), wherein two clamping wheels (2) are provided inside the U-shaped plate (1), and a U-shaped frame (3) is provided outside the two clamping wheels (2), the clamping wheels (2) are rotatably connected to the U-shaped plate (1), and an adjustment mechanism (4) for adjusting the two clamping wheels (2) is provided on the U-shaped plate (1), and a cover plate (5) is rotatably installed on the two arms of the U-shaped plate (1), and an image collector (6) is provided on the cover plate (5) and the inner wall of the U-shaped plate (1); A driving mechanism (7) is used to drive the two clamping wheels (2), the driving mechanism (7) includes a through hole (8) provided on the U-shaped plate (1), a slider (9) is slidably connected in the two through holes (8), the slider (9) is rotatably connected to two rotating shafts (10), the two rotating shafts (10) are connected by a gear set (11), a first motor (12) is fixedly connected to the side wall of the slider (9), the driving shaft of the first motor (12) rotates through the slider (9) and is coaxially fixedly connected to one of the rotating shafts (10), the intermediate shafts of the two clamping wheels (2) are both rotated through the U-shaped frame (3), the rotating shafts (10) on the same side and the intermediate shafts of the clamping wheels (2) are connected by a first transmission mechanism (13), and the rotating shafts (10) on the same side and the intermediate shafts of the clamping wheels (2) are rotatably connected by a same connecting plate (14).

2. The car anti-fall detection device according to claim 1, characterized in that: The adjusting mechanism (4) comprises two threaded rods (15), the two threaded rods (15) are respectively fixedly connected to the side walls opposite to each other of the two U-shaped frames (3), the ends of the two threaded rods (15) away from the U-shaped frame (3) are both slidably penetrated and arranged on the U-shaped plate (1), the U-shaped plate (1) is externally threaded with a threaded sleeve (16), the two threaded sleeves (16) are both rotatably connected to the U-shaped plate (1), the U-shaped plate (1) is rotatably penetrated with a transmission shaft (17), the transmission shaft (17) and the two threaded sleeves (16) are transmission-connected via a second transmission mechanism (18), the U-shaped plate (1) is fixedly connected with a mounting plate (19), the mounting plate (19) is mounted with a second motor (20), and the drive shaft of the second motor (20) is coaxially fixedly connected with the transmission shaft (17).

3. The car anti-fall detection device according to claim 1, characterized in that: The gear set (11) comprises two transmission gears (21), the two transmission gears (21) are coaxially fixedly connected to the two rotating shafts (10), and the two transmission gears (21) are meshedly connected.

4. The car anti-fall detection device according to claim 1, characterized in that: The first transmission mechanism (13) comprises a first pulley (22) and a second pulley (23), wherein the first pulley (22) is coaxially fixedly connected to the rotating shaft (10), and the second pulley (23) is coaxially fixedly connected to the intermediate shaft of the clamping wheel (2), and the first pulley (22) and the second pulley (23) are connected via a synchronous belt transmission.

5. The car anti-fall detection device according to claim 2, characterized in that: The second transmission mechanism (18) includes a third pulley (24) and a fourth pulley (25), wherein the third pulley (24) is coaxially fixedly connected to the transmission shaft (17), and the fourth pulley (25) is coaxially fixedly connected to the threaded sleeve (16), and the third pulley (24) and the fourth pulley (25) are connected via a synchronous belt transmission.

6. The car anti-fall detection device according to claim 2, characterized in that: The external threads of the two threaded rods (15) are screwed in opposite directions.

7. The car anti-fall detection device according to claim 1, characterized in that: The two image collectors (6) are fixedly mounted on the cover plate (5) and the slider (9) respectively.

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