Elevator retrofit verticality detection device

Abstract

This invention provides an elevator verticality detection device, belonging to the field of elevator verticality detection technology. The device includes a support plate, with two support rods fixedly connected to both sides of the support plate. A first vertical plate is fixedly connected between the two support rods on the same side of the support plate. Each first vertical plate has four threaded fastening bolts at one corner, and a fastening plate is fixedly connected to one end of each fastening bolt. Two infrared emitters are fixedly connected vertically to one side of one first vertical plate, and two infrared receivers are fixedly connected vertically to one side of the other first vertical plate. Two limiting rods are fixedly connected to the bottom surface of the support plate. Under the action of spring force, this invention ensures that the tip of the detection rod is always in contact with the elevator track, and, in conjunction with a distance sensor, detects changes in the distance between the rod and the stop block, achieving high efficiency and high precision in detecting the verticality of the elevator track.

Description

Technical Field

[0001] This invention belongs to the field of elevator verticality detection technology, specifically a verticality detection device for elevator installation. Background Technology

[0002] Elevator guide rails, as a crucial component of elevators, are a significant factor affecting safety and comfort. Elevator guide rails undergo rigorous quality testing at the factory, ensuring manufacturing errors are controlled within a reasonable range. Therefore, installation errors during the installation process become a factor affecting the final quality level of the elevator guide rails. There are many types of guide rails, but the most widely used are standardized steel structure guide rails, typically 3-5 meters in length. During installation, several guide rails are vertically spliced ​​according to the building height. Excessive vertical deviation of the guide rails can cause elevator swaying and bumping during operation. Therefore, the verticality of the guide rails must be checked during installation to ensure that the deviation is controlled within the standard range.

[0003] Currently, the traditional method for detecting the verticality of elevators is the plumb line test. This method has some shortcomings: 1. It relies on manual reading, which has large reading errors, low accuracy, and low efficiency; 2. The plumb bob is prone to shaking during movement, which affects the detection efficiency and causes inconvenience to the elevator verticality detection.

[0004] Therefore, this invention proposes an elevator verticality detection device to compensate for and improve the deficiencies of the prior art. Summary of the Invention

[0005] To overcome the shortcomings of existing technologies, this invention proposes an elevator verticality detection device.

[0006] To achieve the above objectives, the present invention employs the following technical solution: A verticality detection device for elevators includes a support plate. Two support rods distributed front and back are fixedly connected to both sides of the support plate. A first vertical plate is fixedly connected between the two support rods on the same side of the support plate. Each first vertical plate has four threaded fastening bolts at one corner. A fastening plate is fixedly connected to one end of each fastening bolt. Two infrared transmitters distributed vertically are fixedly connected to one side of one first vertical plate, and two infrared receivers distributed vertically are fixedly connected to one side of the other first vertical plate. Two limiting rods distributed front and rear are fixedly connected to the bottom surface of the support plate. A horizontal plate is slidably connected to the two limiting rods. The horizontal plate is connected to the support plate through a hoisting assembly. Mounting plates are slidably connected to both sides of the horizontal plate. The two mounting plates are connected to the horizontal plate through a transmission assembly. Each mounting plate has two vertically distributed limiting plates fixedly connected to one side. Each limiting plate has a slidably connected detection rod. One end of each detection rod is fixedly connected to a stop block. Each stop block is connected to the corresponding limiting plate via a spring. Each detection rod passes through the corresponding spring. The other end of each detection rod is a pointed tip. Each stop block has a second vertical plate on one side. Each second vertical plate is fixedly connected to the corresponding mounting plate. A distance sensor is fixedly connected to one side of each second vertical plate.

[0007] Preferably, the hoisting assembly includes: four first fixing plates, which are rectangularly distributed and fixedly connected to the top surface of the support plate; motors are fixedly connected to the front of the two first fixing plates located in front of the support plate; a connecting shaft is fixedly connected to the rear end of each motor shaft; the rear end of each connecting shaft is rotatably connected to the corresponding first fixing plate; two hoisting ropes distributed front and rear are fixedly connected to each connecting shaft; four rectangularly distributed through holes are opened on the top surface of the support plate; each hoisting rope passes through the corresponding through hole; the bottom ends of the four hoisting ropes are fixedly connected to the top surface of the horizontal plate; and the hoisting ropes can be wound and stored on the corresponding connecting shafts.

[0008] Preferably, each of the connecting shafts is equipped with an electromagnetic brake, and both electromagnetic brakes are fixedly connected to the top surface of the support plate.

[0009] Preferably, the top surface of the support plate is rotatably connected to four support rollers via a fixing frame. The four support rollers are arranged in a rectangular shape, and each suspension rope passes through the corresponding support roller and slides in contact with the corresponding support roller.

[0010] Preferably, the transmission assembly includes: rectangular through slots on both sides of the top surface of the horizontal plate, each rectangular through slot having a vertical strip block slidably connected therein, the bottom surface of each strip block being fixedly connected to the top surface of a corresponding mounting plate, a second fixing plate being fixedly connected to both sides of the top surface of the horizontal plate, a threaded rod being rotatably connected between the two second fixing plates, one end of the threaded rod penetrating through the second fixing plate, the two ends of the threaded rod having opposite threads, and the two ends of the threaded rod respectively penetrating through the corresponding strip block and being threadedly connected to the corresponding strip block.

[0011] Preferably, the top surface of the horizontal plate is fixedly connected to a support block, and the threaded rod passes through the support block and is rotatably connected to the support block.

[0012] Preferably, the bottom surface of the horizontal plate is fixedly connected to two mounting sleeves distributed front and rear, each limiting rod passes through the corresponding mounting sleeve, and several evenly distributed cleaning brushes are fixedly connected to the inner wall of each mounting sleeve, the cleaning brushes being soft brushes.

[0013] Preferably, the side of each fastening plate away from the fastening bolt is a rough surface.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. This invention, through the cooperation of two infrared transmitters and two infrared receivers, can detect the horizontal position of the support plate, thereby ensuring the horizontal accuracy of the support plate during installation; 2. With the cooperation of the vertical plate, fastening bolts and fastening plate, the present invention can quickly fix the support plate in the elevator shaft, saving installation and disassembly time and improving installation and disassembly efficiency. 3. Under the action of spring force, the tip of the detection rod can always be in contact with the elevator track, and in conjunction with the distance sensor to detect the change in distance between the rod and the stop, the verticality of the elevator track can be detected with high efficiency and high precision. 4. The present invention enables the mounting plate to move up and down along the limit rod by the hoisting component, thereby driving the detection rod to move, and thus enabling detection at different positions of the elevator track. Attached Figure Description

[0015] The invention will now be further described with reference to the accompanying drawings.

[0016] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 yes Figure 1 A bottom view; Figure 3 yes Figure 1 The main view; Figure 4 This is a schematic diagram of the support plate structure; Figure 5 yes Figure 4 The right view; Figure 6 This is a schematic diagram of the transmission component structure; Figure 7 This is a schematic diagram of the mounting plate structure; Figure 8 yes Figure 7 A bottom view; Figure 9 This is a schematic diagram of the detection rod structure; Figure 10 This is a schematic diagram of the cleaning brush structure; The following are the labels shown in the diagram: 1. Support plate; 2. Support rod; 3. First vertical plate; 4. Fastening bolt; 5. Fastening plate; 6. Infrared transmitter; 7. Infrared receiver; 8. Limiting rod; 9. Horizontal plate; 10. Mounting plate; 11. Limiting plate; 12. Detection rod; 13. Stop block; 14. Spring; 15. Second vertical plate; 16. Distance sensor; 17. First fixing plate; 18. Motor; 19. Connecting shaft; 20. Lifting rope; 21. Through hole; 22. Electromagnetic brake; 23. Rectangular through slot; 24. Strip block; 25. Second fixing plate; 26. Threaded rod; 27. Support block; 28. Support roller; 29. ​​Mounting sleeve; 30. Cleaning brush. Detailed Implementation

[0017] To make the technical means, creative features, achieved objectives, and effects of this invention readily understandable, the invention will be further described below in conjunction with the accompanying drawings and specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various modifications or alterations to the invention, and these equivalent forms also fall within the scope defined by this application.

[0018] like Figure 1-10 As shown, the elevator verticality detection device of the present invention includes a support plate 1. Two support rods 2, distributed front and rear, are fixedly connected to both sides of the support plate 1. A first vertical plate 3 is fixedly connected between the two support rods 2 on the same side of the support plate 1. Each first vertical plate 3 has four threaded fastening bolts 4 at one corner of one side. A fastening plate 5 is fixedly connected to one end of each fastening bolt 4. Two infrared emitters 6, distributed vertically, are fixedly connected to one side of one first vertical plate 3, and two infrared receivers 7, distributed vertically, are fixedly connected to one side of the other first vertical plate 3. The two infrared emitters 6 emit infrared light simultaneously. By adjusting the horizontal position of the support plate 1, the two infrared receivers 7 can simultaneously receive the corresponding infrared light, thereby determining that the support plate 1 is in a horizontal position. Then, the fastening bolts 4 are rotated, and the fastening bolts 4 rotate and move horizontally along the first vertical plate 3. The movement of the fastening bolts 4 drives the corresponding fastening plate 5 to move. The fastening plate 5 moves and contacts the inner wall of the elevator shaft, thereby fixing the support plate 1 in the elevator shaft. Two limiting rods 8, distributed front and rear, are fixedly connected to the bottom surface of the support plate 1. A horizontal plate 9 is slidably connected to the two limiting rods 8. The horizontal plate 9 is connected to the support plate 1 through a hoisting assembly. Mounting plates 10 are slidably connected to both sides of the horizontal plate 9. The two mounting plates are connected to the horizontal plate 9 through a transmission assembly. Driven by the hoisting mechanism, the horizontal plate 9 can move along the two limiting rods 8, thereby adjusting the position of the horizontal plate 9 so as to drive the detection rod 12 to move. Adjusting the position of the detection rod 12 completes the verticality detection at different positions of the elevator track. Each mounting plate 10 has two vertically distributed limiting plates 11 fixedly connected to one side. A detection rod 12 is slidably connected to each limiting plate 11. A stop block 13 is fixedly connected to one end of each detection rod 12. Each stop block 13 is connected to the corresponding limiting plate 11 via a spring 14. Each detection rod 12 passes through the corresponding spring 14. The other end of each detection rod 12 is a pointed tip. Each stop block 13 has a second vertical plate 15 on one side. Each second vertical plate 15 is fixedly connected to the corresponding mounting plate 10. A distance sensor 16 is fixedly connected to one side of each second vertical plate 15. The pointed end of the detection rod 12 is connected to the elevator... When one side of the track contacts the rail, the distance sensor 16 operates, recording the distance between itself and the corresponding stop 13 as the initial comparison parameter value. Then, the hoisting assembly operates, causing the horizontal plate 9 to move along the two limit rods 8, thereby adjusting the position of the horizontal plate 9 to drive the detection rod 12 to move. The position of the detection rod 12 is adjusted, and under the elastic force of the spring 13, the tip of the detection rod 12 is always in contact with the elevator track. As the distance sensor 16 records multiple sets of data, these sets of data are compared with the initial reference value. If a difference occurs, it can be determined that the elevator track has a bending deformation, and the verticality of the elevator track can be detected.

[0019] like Figure 1 , Figure 2 and Figure 4 As shown, the hoisting assembly includes: four first fixing plates 17, which are rectangularly distributed and fixedly connected to the top surface of the support plate 1. Two of the first fixing plates 17 located in front of the support plate 1 are fixedly connected to motors 18. The rear end of the rotating shaft of each motor 18 is fixedly connected to a connecting shaft 19. The rear end of each connecting shaft 19 is rotatably connected to the corresponding first fixing plate 17. Two hoisting ropes 20 distributed front and rear are fixedly connected to each connecting shaft 19. Four rectangular through holes 21 are opened on the top surface of the support plate 1. Each hoisting rope 20 passes through the corresponding through hole 21. The bottom ends of the four hoisting ropes 20 are fixedly connected to the top surface of the horizontal plate 9. The hoisting ropes 20 can be wound and stored on the corresponding connecting shaft 19.

[0020] Specifically, when the motor 18 is working, it drives the connecting shaft 19 to rotate. The rotation of the connecting shaft 19 drives the suspension rope 20 to move. The movement of the suspension rope 20 will cause the horizontal plate 9 to slide along the limit rod 8, thereby adjusting the position of the detection rod 12 so as to detect different positions of the elevator track.

[0021] like Figure 1 and Figure 2 As shown, each of the connecting shafts 19 is equipped with an electromagnetic brake 22, and both electromagnetic brakes 22 are fixedly connected to the top surface of the support plate 1.

[0022] Specifically, the electromagnetic brake 22 can brake and limit the connecting shaft 19, thereby stopping the connecting shaft 19 from rotating when the position of the cross plate 9 does not need to be adjusted, thus ensuring the stability of the device.

[0023] like Figure 1 and Figure 2 As shown, the top surface of the support plate 1 is rotatably connected to four support rollers 28 via a fixed frame. The four support rollers 28 are arranged in a rectangular shape, and each suspension rope 20 passes through the corresponding support roller 28 and slides in contact with the corresponding support roller 28.

[0024] Specifically, the support roller 28 provides support and redirection for the suspension rope 20, ensuring that the suspension rope 20 can stably drive the horizontal plate 9 to move.

[0025] like Figure 1 , Figure 3 and Figure 6 As shown, the transmission assembly includes: rectangular through slots 23 on both sides of the top surface of the horizontal plate 9, each rectangular through slot 23 having a vertical strip block 24 slidably connected within it, the bottom surface of each strip block 24 being fixedly connected to the top surface of the corresponding mounting plate 10, a second fixing plate 25 being fixedly connected to both sides of the top surface of the horizontal plate 9, a threaded rod 26 being rotatably connected between the two second fixing plates 25, one end of the threaded rod 26 penetrating through the second fixing plate 25, the two ends of the threaded rod 26 having opposite threads, the two ends of the threaded rod 26 respectively penetrating through the corresponding strip block 24 and being threadedly connected to the corresponding strip block 24.

[0026] Specifically, rotating the threaded rod 26, which is threadedly connected to the strip block 24, causes the strip block 24 to move horizontally along the threaded rod 26. The movement of the threaded rod 26 causes the corresponding mounting plate 10 to slide along the horizontal plate 9, thereby adjusting the position of the mounting plate 10. The movement of the mounting plate 10 causes the detection rod 12 to move, thereby adjusting the position of the detection rod 12 and ensuring that the detection rod 12 is in contact with the elevator track to be tested, thus ensuring the testing effect.

[0027] like Figure 3 and Figure 6 As shown, the top surface of the horizontal plate 9 is fixedly connected to the support block 27, and the threaded rod 26 passes through the support block 27 and is rotatably connected to the support block 27.

[0028] Specifically, the support block 27 provides support for the threaded rod 26, preventing the threaded rod 26 from tilting and thus ensuring the stability of the threaded rod 26 during rotation.

[0029] like Figure 1 and Figure 3As shown, two mounting sleeves 29 distributed front and back are fixedly connected to the bottom surface of the horizontal plate 9. Each limiting rod 8 passes through the corresponding mounting sleeve 29. Several evenly distributed cleaning brushes 30 are fixedly connected to the inner wall of each mounting sleeve 29. The cleaning brushes 30 are soft brushes.

[0030] Specifically, the cleaning brush 30 can clean the dust on the surface of the limit rod 8, thereby avoiding the influence of dust on the position of the horizontal plate 9, reducing the impact of the external environment on the detection accuracy, and improving the detection effect. The cleaning brush 30 is a soft brush, which allows the cleaning brush 30 to fully contact the surface of the limit rod 8, thus improving the cleaning effect.

[0031] like Figure 1 and Figure 2 As shown, the side of each fastening plate 5 away from the fastening bolt 4 is a rough surface.

[0032] Specifically, the side of the fastening plate 5 away from the fastening bolt 4 is a rough surface, which increases the friction between the fastening plate 5 and the elevator shaft contact surface, ensuring the stability of the support plate 1 installation.

[0033] This solution also includes a controller, the location of which is set by the operator according to the actual situation during operation. The controller is used to control the electrical components used in this solution. The controller is one of an Intel processor, AMD processor, PLC controller, ARM processor, or microcontroller. It is used in conjunction with a motherboard, memory modules, storage media, and power supply, which is AC power or a lithium battery. When a display screen is provided, a graphics card is also provided. For the operating principle of the controller, please refer to "Principles of Automatic Control", "Principles and Application Simulation Cases of Microcontrollers", and "Principles and Applications of Sensors" published by Tsinghua University Press. Other books in this field can also be consulted. Other automation control and electrical components not mentioned are knowledge well known to those skilled in the art and will not be described in detail here.

[0034] Working principle: First, the two infrared emitters 6 emit infrared light simultaneously. By adjusting the horizontal position of the support plate 1, the two infrared receivers 7 can receive the corresponding infrared light simultaneously, thus determining that the support plate 1 is in a horizontal position. Then, while keeping the support plate 1 in a stable position, the fastening bolt 4 is rotated. The fastening bolt 4 rotates and moves horizontally along the first vertical plate 3. The movement of the fastening bolt 4 drives the corresponding fastening plate 5 to move. The fastening plate 5 moves and contacts the inner wall of the elevator shaft. With the cooperation of multiple fastening plates 5, the support plate 1 is fixedly installed in the elevator shaft. Then, rotate the threaded rod 26, which is threadedly connected to the strip block 24. Therefore, the rotation of the threaded rod 26 will cause the strip block 24 to move horizontally along the threaded rod 26. The movement of the threaded rod 26 will cause the corresponding mounting plate 10 to slide along the horizontal plate 9, thereby adjusting the position of the mounting plate 10. The movement of the mounting plate 10 will cause the detection rod 12 to move, thereby adjusting the position of the detection rod 12. This ensures that the tip of the detection rod 12 can contact the elevator track to be tested, thus ensuring the detection effect. At the same time, when the tip of the detection rod 12 contacts the elevator track, it will give the spring 14 a thrust, causing the spring 14 to undergo elastic deformation. At this time, the distance sensor 16 is activated to record the distance between itself and the corresponding stop 13 as the initial comparison parameter value. By setting two detection rods 12 on the same side, the same position can be detected from both sides, thus ensuring the accuracy of the detection. Then, motor 18 operates, driving connecting shaft 19 to rotate. The rotation of connecting shaft 19 causes suspension rope 20 to move. The movement of suspension rope 20 causes horizontal plate 9 to slide along limit rod 8, thereby adjusting the position of horizontal plate 9. The movement of horizontal plate 9 causes mounting plate 10 to move, and the movement of mounting plate 10 causes detection rod 12 to move, causing the tip of detection rod 12 to slide along the elevator track. When detection rod 12 moves, under the elastic force of spring 14, the tip of detection rod 12 is always in contact with the elevator track. As distance sensor 16 records multiple sets of data, these sets of data are compared with the initial reference value. If a difference is found, it can be determined that the elevator track has bending deformation, and the verticality of the elevator track can be detected.

[0035] The terms "front," "back," "left," "right," "top," and "bottom" all refer to the figures in the accompanying drawings. Figure 1 Based on the perspective of the observer, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0036] In the description of this invention, it should be understood that the terms "upper," "side," "inner," etc., indicating 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 the invention and simplifying the description, and do not indicate or imply that the elements referred to must have a specific orientation, or be constructed and operated in a specific orientation. In addition, it should be noted that unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; they can refer to the internal communication of two elements or the interaction relationship between two elements. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A verticality detection device for elevator installation, comprising a support plate (1), characterized in that, Two support rods (2) are fixedly connected to both sides of the support plate (1) and are distributed in front and behind. A first vertical plate (3) is fixedly connected between the two support rods (2) on the same side of the support plate (1). Fastening bolts (4) are threaded to the four corners of one side of each first vertical plate (3). A fastening plate (5) is fixedly connected to one end of each fastening bolt (4). Two infrared transmitters (6) are fixedly connected to one side of one first vertical plate (3) and two infrared receivers (7) are fixedly connected to one side of the other first vertical plate (3). The bottom surface of the support plate (1) is fixedly connected to two front and rear distributed limiting rods (8), and the two limiting rods (8) are slidably connected to a horizontal plate (9). The horizontal plate (9) is connected to the support plate (1) through a hoisting assembly. The two sides of the horizontal plate (9) are slidably connected to mounting plates (10), and the two mounting plates are connected to the horizontal plate (9) through a transmission assembly. Two vertically distributed limiting plates (11) are fixedly connected to one side of each mounting plate (10). A detection rod (12) is slidably connected to each limiting plate (11). A stop block (13) is fixedly connected to one end of each detection rod (12). Each stop block (13) is connected to the corresponding limiting plate (11) through a spring (14). The detection rod (12) passes through the corresponding spring (14). The other end of each detection rod (12) is a pointed tip. A second vertical plate (15) is provided on one side of each stop block (13). Each second vertical plate (15) is fixedly connected to the corresponding mounting plate (10). A distance sensor (16) is fixedly connected to one side of each second vertical plate (15).

2. The elevator verticality detection device according to claim 1, characterized in that, The hoisting assembly includes: four first fixing plates (17), which are rectangularly distributed and fixedly connected to the top surface of the support plate (1). Two of the first fixing plates (17) in front of the support plate (1) are fixedly connected to motors (18). The rear end of the shaft of each motor (18) is fixedly connected to a connecting shaft (19). The rear end of each connecting shaft (19) is rotatably connected to the corresponding first fixing plate (17). Two hoisting ropes (20) distributed front and rear are fixedly connected to each connecting shaft (19). The top surface of the support plate (1) has four rectangularly distributed through holes (21). Each hoisting rope (20) passes through the corresponding through hole (21). The bottom ends of the four hoisting ropes (20) are fixedly connected to the top surface of the horizontal plate (9). The hoisting ropes (20) can be wound and stored on the corresponding connecting shafts (19).

3. The elevator verticality detection device according to claim 2, characterized in that, Each of the connecting shafts (19) is provided with an electromagnetic brake (22), and both electromagnetic brakes (22) are fixedly connected to the top surface of the support plate (1).

4. The elevator verticality detection device according to claim 3, characterized in that, The top surface of the support plate (1) is rotatably connected to four support rollers (28) via a fixed frame. The four support rollers (28) are arranged in a rectangular shape. Each suspension rope (20) passes through the corresponding support roller (28) and slides in contact with the corresponding support roller (28).

5. The elevator verticality detection device according to claim 1, characterized in that, The transmission assembly includes: rectangular through slots (23) on both sides of the top surface of the horizontal plate (9), each rectangular through slot (23) is slidably connected to a vertical strip block (24), the bottom surface of each strip block (24) is fixedly connected to the top surface of the corresponding mounting plate (10), the top surface of the horizontal plate (9) is fixedly connected to both sides of the top surface of the horizontal plate (9), and a threaded rod (26) is rotatably connected between the two second fixed plates (25). One end of the threaded rod (26) passes through the second fixed plate (25), and the two ends of the threaded rod (26) are provided with opposite threads. The two ends of the threaded rod (26) pass through the corresponding strip block (24) and are threadedly connected to the corresponding strip block (24).

6. The elevator verticality detection device according to claim 5, characterized in that, The top surface of the horizontal plate (9) is fixedly connected to the support block (27), and the threaded rod (26) passes through the support block (27) and is rotatably connected to the support block (27).

7. The elevator verticality detection device according to claim 1, characterized in that, The bottom surface of the horizontal plate (9) is fixedly connected to two front and rear distributed mounting sleeves (29). Each limiting rod (8) passes through the corresponding mounting sleeve (29). Several evenly distributed cleaning brushes (30) are fixedly connected to the inner wall of each mounting sleeve (29). The cleaning brushes (30) are soft brushes.

8. The elevator verticality detection device according to claim 1, characterized in that, The side of each fastening plate (5) away from the fastening bolt (4) is rough.

Images