Antiskid device for electric stair-climbing wheelchair

Abstract

The invention belongs to the field of electric stair-climbing wheelchairs, and particularly relates to an anti-skid device for an electric stair-climbing wheelchair, which comprises a mounting plate, a sleeve is fixedly connected to one side of the lower end face of the mounting plate, a second sliding rod is slidably connected to the sleeve, a fixing plate is fixedly connected to the lower end of the second sliding rod, and a fixing column is fixedly connected to the lower end face of the fixing plate. The fixing plate is further provided with an elastic scraping mechanism used for removing foreign matter arranged on the fixing columns and the anti-skid cones in a sleeving mode. When the electric stair-climbing wheelchair slips on the icy ground, the anti-skid cones are driven to descend, the ends of the anti-skid cones penetrate through the ice surface and make contact with the ground, the ends of the anti-skid cones are kept tightly attached to the ground under the action of the springs, braking and skid resistance of the electric stair-climbing wheelchair can be achieved, and therefore the situation that when a crawler belt is adopted for skid resistance, the electric stair-climbing wheelchair cannot slip easily is avoided. And the friction force between the crawler belt and the ice surface is small, so that the anti-skid effect is weakened, and potential safety hazards exist.

Description

Technical Field

[0001] The invention belongs to the field of electric stair-climbing wheelchairs, in particular to an anti-slip device for an electric stair-climbing wheelchair. Background Art

[0002] An electric stair-climbing wheelchair is an assistive device designed to help people with limited mobility go up and down stairs. The design of this wheelchair takes into account both the functions of climbing stairs and walking on flat ground. Since electric stair-climbing wheelchairs need to be used in a variety of environments, including ramps, flat ground, etc., the anti-slip design can make the wheelchair better adapt to these different terrains and conditions, ensuring a stable and safe driving experience in various environments.

[0003] The patent with announcement number CN204233314U discloses an anti-skid device for an electric stair climbing wheelchair. The five-star wheel for stair climbing is installed on the power spindle. A cylinder is provided on the wheelchair chassis. The bottom end of the cylinder's top rod is fixed to the track frame. The track frame is located below the wheelchair chassis. The track frame is equipped with a driving wheel and a passive wheel. The driving wheel and the passive wheel are respectively located at the two ends of the inner side of the track and mesh with the track. A driving sprocket is also installed on the power spindle, and the passive sprocket is fixed on the axle of the driving wheel. The driving power of this patent comes from the power spindle of the existing electric wheelchair, and no additional power device is required. The structural design is reasonable.

[0004] However, the above technical solution still has the following deficiencies in practical application:

[0005] Although the electric stair climbing wheelchair can use the cylinder to drive the track to move down and contact the stairs, and then the active wheel drives the track to roll along the building to achieve anti-skid when going up and down stairs, but when the electric stair climbing wheelchair is driving on icy ground, its anti-skid function mainly depends on the friction between the track and the ground, and the ice surface is very smooth. When the track contacts the ice surface, the friction will be greatly reduced, so that the anti-skid effect is weakened, and there is a certain safety hazard.

[0006] To this end, the present invention provides an anti-skid device for an electric stair climbing wheelchair. Summary of the invention

[0007] In order to make up for the deficiencies of the prior art and solve at least one technical problem raised in the background technology, the present invention proposes an anti-slip device for an electric stair-climbing wheelchair.

[0008] The technical solution adopted by the present invention to solve the technical problem is: an anti-skid device for an electric stair-climbing wheelchair, comprising a mounting plate, a sleeve fixedly connected to one side of the lower end surface of the mounting plate, a second slide bar slidably connected to the sleeve, a fixing plate fixedly connected to the lower end of the second slide bar, a fixing column fixedly connected to the lower end surface of the fixing plate, an anti-skid cone plugged and slidably connected to the lower end of the fixing column, and an elastic scraping mechanism for removing foreign matter sleeved on the fixing column and the anti-skid cone is also provided on the fixing plate;

[0009] The elastic scraping mechanism includes a plurality of sliding rods slidably connected to a fixed plate, a lower end of the sliding rod is fixedly connected to an elastic cloth, the elastic cloth is sleeved on a fixed column through a through hole in the middle, and the through hole of the elastic cloth fits with the surface of the fixed column, and the elastic cloth can slide on the surface of the fixed column and the anti-slip cone.

[0010] Preferably, fastening bolts are provided at the four corners of the mounting plate.

[0011] Preferably, a threaded rod three is fixedly connected to one side of the upper end surface of the fixed plate, and the threaded rod three is threadedly connected to a threaded barrel. The upper end of the threaded barrel is rotatably set on the mounting plate, and a motor one is fixedly connected to one side of the lower end surface of the mounting plate, and the output end of the motor one is fixedly connected to the upper end of the threaded barrel.

[0012] Preferably, the upper end of the sliding rod is fixedly connected to a rectangular plate, a threaded rod four is threadedly connected to one side of the rectangular plate, the lower end of the threaded rod four is rotatably set on the fixed plate, a motor six is ​​fixedly connected to one side of the upper end surface of the fixed plate, and the output end of the motor six is ​​fixedly connected to one end of the threaded rod four.

[0013] Preferably, a spring is fixedly connected to the upper end of the anti-slip cone, and the upper end of the spring is fixedly connected to the inner side of the fixing column.

[0014] Preferably, one side of the lower end surface of the mounting plate is slidably connected to a frame body, flip plates are rotatably provided at both ends of the lower side of the frame body, both sides of the upper end surface of the flip plate are slidably connected to sliders, one side of the upper end of the slider is rotatably provided with a turntable, and one side of the turntable is rotatably provided with two clamping claws.

[0015] Preferably, the upper end of the frame is threadedly connected with a threaded rod 2, both ends of the threaded rod 2 are rotatably set on the mounting plate, one side of the lower end surface of the mounting plate is fixedly connected with a motor 3, the output end of the motor 3 is fixedly connected to one end of the threaded rod 2, and one side of the lower end of the frame is fixedly connected with a motor 7, and the output end of the motor 7 is fixedly connected to one side of the flip plate.

[0016] Preferably, electric push rods are fixedly connected on both sides of the upper end surface of the flip plate, the piston end of the electric push rod is fixedly connected to one side of the slider, one side of the slider is fixedly connected to motor four, the output end of motor four is fixedly connected to the middle part of one side of the turntable, one end of the clamp is fixedly connected to a fan wheel, the fan wheel is rotatably set on the turntable, one side of the turntable is fixedly connected to motor five, the output end of motor five is fixedly connected to one end of the clamp, and the two fan wheels are meshed with each other.

[0017] Preferably, a connecting plate is slidably connected to one side of the lower end surface of the mounting plate, and a box body is fixedly connected to the lower end of the connecting plate.

[0018] Preferably, the upper end of the connecting plate is threadedly connected to a threaded rod 1, both ends of the threaded rod 1 are rotatably arranged on the mounting plate, one side of the lower end surface of the mounting plate is fixedly connected to a motor 2, and the output end of the motor 2 is fixedly connected to one end of the threaded rod 1.

[0019] The beneficial effects of the present invention are as follows:

[0020] 1. The anti-skid device for an electric stair-climbing wheelchair described in the present invention can, when the electric stair-climbing wheelchair slips on an icy ground, drive the anti-skid cone to descend so that the end of the anti-skid cone penetrates the ice surface and contacts the ground, and keep the end of the anti-skid cone in close contact with the ground under the action of the spring, so as to achieve braking and anti-skid of the electric stair-climbing wheelchair, thereby avoiding the situation that when the track is used for anti-skid, the friction between the track and the ice surface is small, resulting in weakened anti-skid effect and potential safety hazards, and by utilizing the elastic scraping mechanism, each time the anti-skid cone completes an ice penetration work and resets upward, the elastic cloth can be driven down to scrape down foreign matter attached to the fixed column and the surface of the anti-skid cone, thereby achieving the removal of foreign matter attached to the fixed column and the surface of the anti-skid cone, avoiding the situation that the subsequent penetration effect is affected by the foreign matter attached to the surface of the anti-skid cone, and at the same time, avoiding the situation that when the foreign matter is a plastic bag, the plastic bag is entangled with the roller of the electric stair-climbing wheelchair, thereby affecting the normal travel of the electric stair-climbing wheelchair.

[0021] 2. The anti-skid device for an electric stair-climbing wheelchair described in the present invention, when foreign matter falls off through the end of the anti-skid cone, the box body and the flip plate are placed under the anti-skid cone, and the plastic bag will first fall to the upper end of the flip plate, and the plastic bag will be clamped by two claws to twist and form a ball, and then the flip plate is driven to rotate one hundred and eighty degrees, and the clamps will release the plastic bag, so that the plastic bag can fall into the box body, so that the collection of the plastic bag is achieved, thereby avoiding the situation that after the plastic bag falls from the anti-skid cone to the ground, the plastic bag is avoided from floating to the roller due to wind, and then the roller is entangled by the plastic bag again. In addition, since the plastic bag is balled up under the action of the clamps, the collection space of the box body is saved, and the plastic bag is not easy to be removed from the box body, which further improves the collection effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention will be further described below in conjunction with the accompanying drawings.

[0023] Figure 1 The three-dimensional structure of the present invention is shown in FIG. Figure 1 ;

[0024] Figure 2 The three-dimensional structure of the present invention is shown in FIG. Figure 2 ;

[0025] Figure 3 yes Figure 2 A partial enlarged view of the middle part;

[0026] Figure 4 It is a schematic diagram of the three-dimensional structure at the fixed plate;

[0027] Figure 5 The three-dimensional structure of the present invention is shown in FIG. Figure 3 ;

[0028] Figure 6 It is a schematic diagram of the three-dimensional structure at the connecting plate;

[0029] Figure 7 It is a schematic diagram of the three-dimensional structure of the slider;

[0030] Figure 8 It is a schematic diagram of the three-dimensional structure of the clamping jaw;

[0031] Fig. 9 It is a schematic diagram of the half-section structure of the fixed column.

[0032] In the figure: 1. mounting plate; 2. fastening bolts; 3. frame; 4. connecting plate; 5. box body; 6. motor one; 7. threaded barrel; 8. threaded rod one; 9. motor two; 10. motor three; 11. threaded rod two; 12. sleeve; 13. rectangular plate; 14. slide bar one; 15. fixed column; 16. elastic cloth; 17. threaded rod three; 18. flip plate; 19. slider; 20. motor four; 21. electric push rod; 22. turntable; 23. clamping claw; 24. motor five; 25. fan wheel; 26. fixed plate; 27. threaded rod four; 28. motor six; 29. ​​slide bar two; 30. motor seven; 31. anti-slip cone; 32. spring. DETAILED DESCRIPTION

[0033] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] Please refer to Figure 1-Figure 9 The present invention provides a technical solution: an anti-skid device for an electric stair-climbing wheelchair, comprising a mounting plate 1, a sleeve 12 is fixedly connected to one side of the lower end surface of the mounting plate 1, a sliding rod 29 is slidably connected to the sleeve 12, a fixing plate 26 is fixedly connected to the lower end of the sliding rod 29, a fixing column 15 is fixedly connected to the lower end surface of the fixing plate 26, an anti-skid cone 31 is inserted and slidably connected to the lower end of the fixing column 15, and an elastic scraping mechanism for removing foreign matter sleeved on the fixing column 15 and the anti-skid cone 31 is also provided on the fixing plate 26;

[0035] The elastic scraping mechanism includes a plurality of slide rods 14 slidably connected to a fixed plate 26, and an elastic cloth 16 is fixedly connected to the lower end of the slide rod 14. The elastic cloth 16 is sleeved on the fixed column 15 through a through hole in the middle, and the through hole of the elastic cloth 16 is in contact with the surface of the fixed column 15. The elastic cloth 16 can slide on the surface of the fixed column 15 and the anti-slip cone 31.

[0036] In this embodiment, Figure 1-Figure 6 , Fig. 9 As shown, fastening bolts 2 are arranged at the four corners of the mounting plate 1 .

[0037] A threaded rod 3 17 is fixedly connected to one side of the upper end surface of the fixed plate 26, and the threaded rod 3 17 is threadedly connected to the threaded barrel 7. The upper end of the threaded barrel 7 is rotatably set on the mounting plate 1, and a motor 6 is fixedly connected to one side of the lower end surface of the mounting plate 1, and the output end of the motor 6 is fixedly connected to the upper end of the threaded barrel 7.

[0038] The upper end of the slide rod 14 is fixedly connected to the rectangular plate 13, and a threaded rod 4 27 is threadedly connected to one side of the rectangular plate 13. The lower end of the threaded rod 4 27 is rotatably set on the fixed plate 26, and a motor 6 28 is fixedly connected to one side of the upper end surface of the fixed plate 26. The output end of the motor 6 28 is fixedly connected to one end of the threaded rod 4 27.

[0039] The upper end of the anti-slip cone 31 is fixedly connected with a spring 32 , and the upper end of the spring 32 is fixedly connected to the inner side of the fixing column 15 .

[0040] Specifically, the anti-skid device of the existing electric stair climbing wheelchair is used to drive the track to move downward and contact the stairs when the electric stair climbing wheelchair goes up and down the stairs, and then the active wheel drives the track to roll along the building body, so as to achieve anti-skid. However, when the electric stair climbing wheelchair is traveling on an icy ground, since its anti-skid function mainly depends on the friction between the track and the ground, and the ice surface is very smooth, when the track contacts the ice surface, the friction will be greatly reduced, so that the anti-skid effect is weakened, and there is a certain safety hazard.

[0041] Therefore, in order to solve the above problems, when the electric stair climbing wheelchair is in use, once the rollers of the electric stair climbing wheelchair slip, the motor 1 6 can be started by the control button on the electric stair climbing wheelchair, and the motor 1 6 drives the threaded cylinder 7 to rotate, so that the threaded rod 3 17 and the sliding rod 29 move downward at the same time, so that the fixing plate 26 can be lowered, and the end of the anti-skid cone 31 can penetrate the ice surface and contact the ground. At the same time, under the action of the spring 32, the end of the anti-skid cone 31 can be kept in close contact with the ground, so that the electric stair climbing wheelchair can be braked and prevented from slipping, thereby avoiding the situation where the anti-skid effect is weakened due to the small friction between the crawler track and the ice surface when the crawler track is used for anti-skid, and then there is a safety hazard;

[0042] Furthermore, since there may be foreign objects such as plastic bags on the ground, when the anti-skid cone 31 penetrates the ice surface, it may also penetrate these foreign objects, causing the foreign objects to adhere to the anti-skid cone 31 or the surface of the fixed column 15, which not only affects the subsequent penetration effect of the anti-skid cone 31, but also, when the foreign object is a plastic bag, it may be entangled with the roller, thereby affecting the normal travel of the electric stair climbing wheelchair. Therefore, in order to solve this problem, each time the anti-skid cone 31 completes a penetration work and resets upward, the motor 6 28 can be used to drive the threaded rod 4 27 to rotate, so that the rectangular plate 13 and the plurality of sliding rods 14 are simultaneously lowered, and the elastic cloth 16 and the fixed column 1 5, the foreign matter attached to the surface of the fixing column 15 is scraped down, and when the elastic cloth 16 moves to the anti-skid cone 31, the through hole in the middle of the elastic cloth 16 will be reduced to fit the surface of the anti-skid cone 31, and the foreign matter attached to the surface of the anti-skid cone 31 can be scraped off, thereby achieving the removal of foreign matter attached to the surface of the fixing column 15 and the anti-skid cone 31, avoiding the situation that the foreign matter attached to the surface of the anti-skid cone 31 affects the subsequent penetration effect, and at the same time, avoiding the situation that when the foreign matter is a plastic bag, the plastic bag is entangled with the roller of the electric stair climbing wheelchair, thereby affecting the normal travel of the electric stair climbing wheelchair.

[0043] In this embodiment, Figure 1-Figure 5 , Figure 7-Figure 8 As shown, one side of the lower end surface of the mounting plate 1 is slidably connected to a frame body 3, and both ends of the lower side of the frame body 3 are rotatably provided with flip plates 18, both sides of the upper end surface of the flip plate 18 are slidably connected to sliders 19, one side of the upper end of the slider 19 is rotatably provided with a turntable 22, and one side of the turntable 22 is rotatably provided with two clamping claws 23.

[0044] A threaded rod 2 11 is threadedly connected to the upper end of the frame body 3, and both ends of the threaded rod 2 11 are rotatably set on the mounting plate 1, a motor 3 10 is fixedly connected to one side of the lower end surface of the mounting plate 1, and the output end of the motor 3 10 is fixedly connected to one end of the threaded rod 2 11, and a motor 7 30 is fixedly connected to one side of the lower end of the frame body 3, and the output end of the motor 7 30 is fixedly connected to one side of the flip plate 18.

[0045] Electric push rods 21 are fixedly connected to both sides of the upper end surface of the flip plate 18, the piston end of the electric push rod 21 is fixedly connected to one side of the slider 19, a motor 20 is fixedly connected to one side of the slider 19, the output end of the motor 20 is fixedly connected to the middle part of one side of the turntable 22, one end of the clamp 23 is fixedly connected to a fan wheel 25, the fan wheel 25 is rotatably set on the turntable 22, one side of the turntable 22 is fixedly connected to a motor 5 24, the output end of the motor 5 24 is fixedly connected to one end of the clamp 23, and the two fan wheels 25 are meshed with each other.

[0046] A connecting plate 4 is slidably connected to one side of the lower end surface of the mounting plate 1 , and a box body 5 is fixedly connected to the lower end of the connecting plate 4 .

[0047] The upper end of the connecting plate 4 is threadedly connected to a threaded rod 8, both ends of the threaded rod 8 are rotatably set on the mounting plate 1, and one side of the lower end surface of the mounting plate 1 is fixedly connected to a motor 2 9, and the output end of the motor 2 9 is fixedly connected to one end of the threaded rod 8.

[0048] Specifically, in the above embodiment, although the elastic cloth 16 can be used to remove foreign objects attached to the surface of the fixing column 15 and the anti-slip cone 31, the foreign objects will fall to the ground. When the foreign objects are plastic bags, the plastic bags may float to the rollers due to the wind, and the rollers will be entangled by the plastic bags again. Therefore, in order to avoid this problem, when the foreign objects fall off through the end of the anti-slip cone 31, the motors 2 9 and 3 10 on both sides can be used to rotate the threaded rods 1 8 and 2 11 respectively, so that the frame 3 and the connecting plate 4 slide at the same time and approach each other until the box body 5 and the flip plate 18 are under the anti-slip cone 31. The plastic bag will first fall to the upper end of the flip plate 18. At this time, the electric push rods 21 on both sides can be used to drive the two sliders 19 to approach each other, and the motor 5 24 can be used to drive the clamping claws 23 on one side to rotate, and the two fan wheels 2 5, the two clamping claws 23 are brought close to each other to clamp the plastic bag, and then the two motors 20 simultaneously drive the turntables 22 on both sides to rotate in different directions, so that the plastic bag can be made more compact by twisting. At the same time, the two turntables 22 are also brought close to each other to make the plastic bag form a ball. When the plastic bag forms a ball, the motor 7 30 is used to drive the flip plate 18 to rotate 180 degrees, and then the clamping claws 23 loosen the plastic bag, so that the plastic bag can fall into the box body 5. At this point, the collection of the plastic bag is achieved, thereby avoiding the plastic bag from falling from the anti-slip cone 31 to the ground, and then the plastic bag is floated to the roller due to wind, and then the roller is entangled by the plastic bag again. In addition, because the plastic bag is formed into a ball under the action of the clamping claws 23, the collection space of the box body 5 is saved, and the plastic bag is not easy to be removed from the box body 5, which further improves the collection effect.

[0049] After the collection work is completed, the frame 3 and the box body 5 are reset to the initial position.

[0050] Working principle: When the electric stair climbing wheelchair is traveling on an icy ground, once the rollers of the electric stair climbing wheelchair slip, the motor 16 can be started by the control button on the electric stair climbing wheelchair, and the motor 16 drives the threaded cylinder 7 to rotate, so that the threaded rod 3 17 and the sliding rod 29 move downward at the same time, so that the fixed plate 26 can be lowered, and the end of the anti-skid cone 31 can penetrate the ice surface and contact the ground. At the same time, under the action of the spring 32, the end of the anti-skid cone 31 can be kept in close contact with the ground, so that the electric stair climbing wheelchair can be braked and prevented from slipping, thereby avoiding the use of track anti-skid. When the anti-skid cone 31 penetrates the ice surface, the anti-skid cone 31 may also penetrate the anti-skid cone 31 or the surface of the fixing column 15, which not only affects the subsequent penetration effect of the anti-skid cone 31, but also may be entangled with the roller when the foreign object is a plastic bag, thereby affecting the normal travel of the electric stair climbing wheelchair. Therefore, in order to solve this problem, each time the anti-skid cone 31 completes a penetration work and returns upward, the anti-skid cone 31 is placed on the ice surface. After the anti-skid cone 31 is in position, the motor 6 28 can be used to drive the threaded rod 4 27 to rotate, so that the rectangular plate 13 and the plurality of sliding rods 14 are simultaneously lowered, and the foreign matter attached to the surface of the fixed column 15 can be scraped down by scraping the elastic cloth 16 against the surface of the fixed column 15, and when the elastic cloth 16 moves to the anti-skid cone 31, the through hole in the middle of the elastic cloth 16 will be reduced to fit the surface of the anti-skid cone 31, and the foreign matter attached to the surface of the anti-skid cone 31 can be scraped off, thereby realizing the removal of foreign matter attached to the surface of the fixed column 15 and the anti-skid cone 31, avoiding the foreign matter from being The foreign matter attached to the surface of the anti-slip cone 31 will affect the subsequent penetration effect. At the same time, it also avoids the situation that when the foreign matter is a plastic bag, the plastic bag and the roller of the electric stair climbing wheelchair are entangled, thereby affecting the normal travel of the electric stair climbing wheelchair. Although the elastic cloth 16 can be used to remove the foreign matter attached to the fixed column 15 and the surface of the anti-slip cone 31, the foreign matter will fall to the ground. When the foreign matter is a plastic bag, the plastic bag may float to the roller due to the wind, and the roller will be entangled by the plastic bag again. Therefore, in order to avoid this problem, this embodiment is used;When the foreign matter falls off through the end of the anti-slip cone 31, the motors 2 9 and 3 10 on both sides can be used to rotate the threaded rod 1 8 and the threaded rod 2 11 respectively, so that the frame 3 and the connecting plate 4 slide and approach each other at the same time, until the box body 5 and the flip plate 18 are under the anti-slip cone 31, and the plastic bag will first fall to the upper end of the flip plate 18. At this time, the electric push rods 21 on both sides can be used to drive the two sliders 19 to approach each other, and the motor 5 24 can be used to drive the clamping claws 23 on one side to rotate, and with the cooperation of the two fan wheels 25, the two clamping claws 23 are brought close to each other to clamp the plastic bag, and then the two motors 4 20 simultaneously drive the turntables 22 on both sides to rotate in different directions, so that the plastic bag can be made more compact by twisting, and at the same time At the same time, the two rotating disks 22 also approach each other to make the plastic bag form a ball. When the plastic bag forms a ball, the motor 7 30 is used to drive the flip plate 18 to rotate 180 degrees, and then the clamping claw 23 loosens the plastic bag, so that the plastic bag can fall into the box body 5. At this point, the collection of the plastic bag is realized, thereby avoiding the situation that after the plastic bag falls from the anti-slip cone 31 to the ground, the plastic bag is drifted to the roller due to wind force, and then the roller is entangled by the plastic bag again. In addition, because the plastic bag is formed into a ball under the action of the clamping claw 23, the collection space of the box body 5 is saved, and the plastic bag is not easy to be removed from the box body 5, which further improves the collection effect; after the collection work is completed, the frame 3 and the box body 5 are reset to the initial position. ;

[0051] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An anti-slip device for an electric stair-climbing wheelchair, comprising a mounting plate (1), characterized in that: A sleeve (12) is fixedly connected to one side of the lower end surface of the mounting plate (1), and a second slide rod (29) is slidably connected to the sleeve (12), and a fixing plate (26) is fixedly connected to the lower end of the second slide rod (29), and a fixing column (15) is fixedly connected to the lower end of the fixing plate (26), and an anti-slip cone (31) is inserted and slidably connected to the lower end of the fixing column (15), and an elastic scraping mechanism for removing foreign matter sleeved on the fixing column (15) and the anti-slip cone (31) is also provided on the fixing plate (26); The elastic scraping mechanism comprises a plurality of sliding rods (14) slidably connected to a fixed plate (26); an elastic cloth (16) is fixedly connected to the lower end of the sliding rod (14); the elastic cloth (16) is sleeved on a fixed column (15) through a through hole in the middle; the through hole of the elastic cloth (16) is in contact with the surface of the fixed column (15); the elastic cloth (16) can slide on the surface of the fixed column (15) and the anti-slip cone (31).

2. The anti-slip device for an electric stair climbing wheelchair according to claim 1, characterized in that: The four corners of the mounting plate (1) are each provided with fastening bolts (2).

3. The anti-slip device for an electric stair climbing wheelchair according to claim 1, characterized in that: A threaded rod three (17) is fixedly connected to one side of the upper end surface of the fixing plate (26), and a threaded barrel (7) is threadedly connected to the threaded rod three (17). The upper end of the threaded barrel (7) is rotatably arranged on the mounting plate (1), and a motor one (6) is fixedly connected to one side of the lower end surface of the mounting plate (1), and the output end of the motor one (6) is fixedly connected to the upper end of the threaded barrel (7).

4. The anti-slip device for an electric stair climbing wheelchair according to claim 1, characterized in that: The upper end of the sliding rod 1 (14) is fixedly connected to a rectangular plate (13), one side of the rectangular plate (13) is threadedly connected to a threaded rod 4 (27), the lower end of the threaded rod 4 (27) is rotatably arranged on a fixed plate (26), one side of the upper end surface of the fixed plate (26) is fixedly connected to a motor 6 (28), and the output end of the motor 6 (28) is fixedly connected to one end of the threaded rod 4 (27).

5. The anti-slip device for an electric stair climbing wheelchair according to claim 4, characterized in that: The upper end of the anti-slip cone (31) is fixedly connected to a spring (32), and the upper end of the spring (32) is fixedly connected to the inner side of the fixing column (15).

6. The anti-slip device for an electric stair climbing wheelchair according to claim 1, characterized in that: One side of the lower end surface of the mounting plate (1) is slidably connected to a frame body (3), and both ends of the lower side of the frame body (3) are rotatably provided with flip plates (18), and both sides of the upper end surface of the flip plate (18) are slidably connected to sliders (19), and one side of the upper end of the slider (19) is rotatably provided with a turntable (22), and one side of the turntable (22) is rotatably provided with two clamping claws (23).

7. The anti-slip device for an electric stair climbing wheelchair according to claim 6, characterized in that: The upper end of the frame body (3) is threadedly connected to a threaded rod 2 (11), and both ends of the threaded rod 2 (11) are rotatably arranged on the mounting plate (1). One side of the lower end surface of the mounting plate (1) is fixedly connected to a motor 3 (10), and the output end of the motor 3 (10) is fixedly connected to one end of the threaded rod 2 (11). One side of the lower end of the frame body (3) is fixedly connected to a motor 7 (30), and the output end of the motor 7 (30) is fixedly connected to one side of the flip plate (18).

8. The anti-slip device for an electric stair climbing wheelchair according to claim 6, characterized in that: Both sides of the upper end surface of the flip plate (18) are fixedly connected with electric push rods (21), the piston end of the electric push rod (21) is fixedly connected to one side of the slider (19), the one side of the slider (19) is fixedly connected with a motor four (20), the output end of the motor four (20) is fixedly connected to the middle part of one side of the turntable (22), one end of the clamp (23) is fixedly connected with a fan wheel (25), the fan wheel (25) is rotatably arranged on the turntable (22), one side of the turntable (22) is fixedly connected with a motor five (24), the output end of the motor five (24) is fixedly connected to one end of the clamp (23), and the two fan wheels (25) are meshed with each other.

9. The anti-slip device for an electric stair climbing wheelchair according to claim 1, characterized in that: One side of the lower end surface of the mounting plate (1) is slidably connected to a connecting plate (4), and the lower end of the connecting plate (4) is fixedly connected to a box body (5).

10. The anti-slip device for an electric stair climbing wheelchair according to claim 9, characterized in that: The upper end of the connecting plate (4) is threadedly connected to a threaded rod (8), both ends of the threaded rod (8) are rotatably arranged on the mounting plate (1), and one side of the lower end surface of the mounting plate (1) is fixedly connected to a motor (9), and the output end of the motor (9) is fixedly connected to one end of the threaded rod (8).

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