Hand-pinching brake type stair climbing wheelchair

Abstract

The utility model relates to the technical field of stair-climbing wheelchairs, in particular to a hand-pinching brake type stair-climbing wheelchair which comprises a stair-climbing wheelchair body, a brake grip, a brake cable, an elastic pusher, a hinge seat and a rotating rod, the brake grip is fixedly mounted on a pushing handle of the stair-climbing wheelchair body, the hinge seat is fixedly mounted on the stair-climbing wheelchair body, and the rotating rod is fixedly mounted on the stair-climbing wheelchair body. According to the hand pinching brake type stair climbing wheelchair, a user operates the brake grip to enable the rotary rod to abut against the surface of a tire, braking of the stair climbing wheelchair is achieved, and the hand pinching brake type stair climbing wheelchair has the advantages that the hand pinching brake type stair climbing wheelchair is convenient to use and high in practicability. By means of the braking mode, larger friction force can be achieved. And after the user presses the handle, the brake locking device can lock the position of the handle after movement, that is, long-term locking use is achieved, the user can leave the handle with the two hands in a short time, and when the wheelchair is not used and stored in a short time, the wheelchair does not need to be blocked through objects.

Description

TECHNICAL FIELD

[0001] The utility model relates to a stair -climbing wheelchair technical field, concretely relates to a hand pinch brake type stair -climbing wheelchair. BACKGROUND

[0002] The stair -climbing wheelchair is used for the patient who cannot walk to use, and the family member can transport the patient to the unit building without elevator through the stair -climbing wheelchair. Although the prior art also has the stair -climbing wheelchair with hand pinch brake, but the brake mode is different when braking, and the brake mode through the surface of the walking wheel is not adopted, and most of the brake mode is adopted to the side of the walking wheel, and the traditional stair -climbing wheelchair does not have long-term brake, so that the user cannot leave the handle when pushing the wheelchair, and the wheelchair needs to be blocked by the article when the wheelchair is not used for a short time, to avoid the movement of the wheelchair. Therefore, the hand pinch brake type stair -climbing wheelchair needs to be designed, which can brake through the surface of the walking wheel, and also has long-term locking function. SUMMARY

[0003] In view of the above technical deficiencies, the utility model aims at providing a hand pinch brake type stair -climbing wheelchair, which can brake through the surface of the walking wheel, and also has long-term locking function.

[0004] In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a hand pinch brake type stair -climbing wheelchair, which comprises a stair -climbing wheelchair body, a brake handle, a brake wire, an elastic pusher, a hinged seat and a rotating rod, the brake handle is fixedly installed on the pushing handle of the stair -climbing wheelchair body, the hinged seat is fixedly installed on the stair -climbing wheelchair body, and the hinged seat is located above the walking wheel of the stair -climbing wheelchair body, the middle part of the rotating rod is rotatably installed on the hinged seat, the brake wire comprises a steel cable and a steel cable sleeve, the steel cable is slidably inserted into the steel cable sleeve, one end of the steel cable sleeve is fixedly connected with the shell of the brake handle, the other end of the steel cable sleeve is fixedly connected with the hinged seat, one end of the steel cable is fixedly connected with the left side of the rotating rod, and the other end of the steel cable is fixedly connected with the handle of the brake handle, the elastic pusher is installed on the hinged seat, and the elastic pusher is used to exert a downward elastic force on the left side of the rotating rod, so that the right side of the rotating rod is away from the walking wheel.

[0005] Preferably, the brake handle is a brake handle with brake lock, which is used to lock the position of the handle after pressing.

[0006] Preferably, the elastic pusher is a spring, one end of the spring is in contact with the hinged seat, and the other end of the spring is in contact with the left side of the rotating rod.

[0007] Preferably, a limiting baffle is fixedly installed on the hinged seat, and the limiting baffle is used to limit the left side of the rotating rod.

[0008] Preferably, the right side of the rotating rod is fixedly provided with a bending part for contacting the outer edge of the walking wheel, the bottom of the rotating rod is fixedly provided with a turned-up edge, the bottom of the elastic pusher abuts against the top of the turned-up edge, and one end of the steel cable is fixedly connected with the turned-up edge.

[0009] Preferably, the hinge seat is fixedly provided with a mounting plate, the bottom of the steel cable sleeve is fixedly connected with the mounting plate, and the top of the elastic pusher abuts against the mounting plate.

[0010] Preferably, the stair climbing wheelchair body further comprises a front wheel, a seat, a handrail, a track walking mechanism and an angle adjusting mechanism, the two push handles are fixedly installed on the two sides of the vertical frame body, the push handle is fixedly installed on the top of the vertical frame body, the seat is fixedly installed on the left side of the vertical frame body, the track walking mechanism is located on the right side of the vertical frame body, the bottom of the track walking mechanism is hingedly connected with the vertical frame body, and the angle adjusting mechanism is fixedly installed on the vertical frame body.

[0011] The stair climbing wheelchair has the advantages that: the brake handle is operated by a user, the rotating rod is in abutment with the surface of the tire, the brake of the stair climbing wheelchair is realized, and the brake mode can have greater friction force. After the handle is pressed by the user, the brake lock can lock the position after the movement of the handle, that is, the long-term locking is realized, the user can leave the handle for a short time with both hands, and the wheelchair does not need to be blocked by an article when the wheelchair is stored for a short time. BRIEF DESCRIPTION OF DRAWINGS

[0012] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description only show some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without any creative effort.

[0013] Figure 1 It is a front view of the present application.

[0014] Figure 2 It is a front view of the present application. Figure 1 It is an enlarged view of A in the front view.

[0015] Figure 3 It is a partial three-dimensional structure schematic view of the present application.

[0016] Explanation of reference numerals in the attached drawings: 1. Stair-climbing wheelchair body; 1a. Walking wheel; 1b. Front wheel; 1c. Seat; 1d. Push handle; 1e. Armrest; 1f. Tracked walking mechanism; 1h. Angle adjustment mechanism; 1j. Vertical frame; 2. Brake handle; 2a. Handle; 2b. Brake lock; 3. Brake cable; 3a. Steel cable; 3b. Steel cable sleeve; 4. Elastic pusher; 5. Hinge seat; 5a. Limiting stop; 5b. Mounting plate; 6. Rotating rod; 6a. Bending part; 6b. Flanged edge. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Example: This utility model provides a hand-operated brake stair-climbing wheelchair, such as... Figures 1-3 As shown, the stair-climbing wheelchair includes a main body 1, a brake handle 2, a brake cable 3, an elastic pusher 4, a hinge seat 5, and a rotating rod 6. The brake handle 2 is fixedly installed on the push handle 1d of the stair-climbing wheelchair main body 1. The hinge seat 5 is fixedly installed on the stair-climbing wheelchair main body 1 and is located above the walking wheel 1a of the stair-climbing wheelchair main body 1. The middle part of the rotating rod 6 is rotatably installed on the hinge seat 5. The brake cable 3 includes a steel cable 3a and a steel cable sleeve 3b. The steel cable 3a is slidably inserted into the steel cable sleeve 3b. One end of the steel cable sleeve 3b is fixedly connected to the outer shell of the brake handle 2, and the other end of the steel cable sleeve 3b is fixedly connected to the hinge seat 5. One end of the steel cable 3a is fixedly connected to the left side of the rotating rod 6, and the other end of the steel cable 3a is fixedly connected to the handle 2a of the brake handle 2. The elastic pusher 4 is installed on the hinge seat 5. The elastic pusher 4 is used to apply a downward elastic force to the left side of the rotating rod 6, so that the right side of the rotating rod 6 moves away from the walking wheel 1a. The stair-climbing wheelchair 1 can be pushed to walk on the ground. When braking is required, the user can press the handle 2a of the brake lever 2, which will pull the left side of the rotating rod 6 upward and rotate it upward, so that the right side of the rotating rod 6 comes into contact with the walking wheel 1a, thus decelerating and braking the stair-climbing wheelchair 1.

[0019] The brake grip 2 is a brake grip 2 equipped with a brake lock 2b. When the handle 2a is pressed, the brake lock 2b locks the position of the handle 2a after movement. The specific structural principle of the brake grip 2 equipped with the brake lock 2b is equivalent to that of Chinese patent application CN201821375778.0, a self-locking device for a brake lever. In this way, when the wheelchair is not in use, the wheels 1a can be locked permanently, preventing the wheelchair from wobbling or shifting.

[0020] The elastic pusher 4 is a spring. One end of the spring abuts against the hinge seat 5, and the other end of the spring abuts against the left side of the rotating rod 6. In this way, the right side of the rotating rod 6 can be moved away from the traveling wheel 1a.

[0021] A limit stop 5a is fixedly installed on the hinge seat 5. The limit stop 5a is used to limit the left side of the rotating rod 6 from contacting the wheel 1a. By setting the limit stop 5a, after the elastic pusher 4 is pushed, the left side of the rotating rod 6 will not contact the wheel 1a, thus avoiding frictional contact between the left side of the rotating rod 6 and the wheel 1a. Figure 2 As shown, when the limiting stop 5a contacts the rotating rod 6, the rotating rod 6 is in a horizontal state. However, the position of the limiting stop 5a can also be in other states, as long as it is ensured that the rotating rod 6 does not contact the traveling wheel 1a when it is in contact with the limiting stop 5a.

[0022] A bent portion 6a is fixedly provided on the right side of the rotating rod 6, which is used to contact the outer edge of the traveling wheel 1a. A flange 6b is fixedly provided on the bottom of the rotating rod 6, and the bottom of the elastic pusher 4 abuts against the top of the flange 6b. By providing the bent portion 6a, when the right side of the flange 6b is rotated downward, the bent portion 6a will abut against the traveling wheel 1a, thereby locking the traveling wheel 1a. The bent portion 6a also increases the contact area. The flange 6b serves to connect the steel cable 3a and the flange 6b, with one end of the steel cable 3a fixedly connected to the flange 6b.

[0023] A mounting plate 5b is fixedly installed on the hinge seat 5. The bottom of the steel cable sleeve 3b is fixedly connected to the mounting plate 5b, and the top of the elastic pusher 4 abuts against the mounting plate 5b. The mounting plate 5b serves to extend and connect the components.

[0024] The stair-climbing wheelchair body 1 also includes front wheels 1b, a seat 1c, armrests 1e, a tracked walking mechanism 1f, and an angle adjustment mechanism 1h. Two push handles 1d are fixedly installed on both sides of the vertical frame 1j, and the push handles 1d are fixedly installed on the top of the vertical frame 1j. The seat 1c is fixedly installed on the left side of the vertical frame 1j, and the tracked walking mechanism 1f is located on the right side of the vertical frame 1j. The bottom of the tracked walking mechanism 1f is hinged to the vertical frame 1j. The angle adjustment mechanism 1h is fixedly installed on the vertical frame 1j. The armrests 1e are for the patient to hold onto, and the push handles 1d are for the user to push the wheelchair. The angle adjustment mechanism 1h is used to adjust the top angle of the tracked walking mechanism 1f. The front wheels 1b are fixedly installed on the bottom of the seat 1c. The angle adjustment mechanism 1h is used to adjust the tracked walking mechanism 1f to the required angle. The tracked walking mechanism 1f includes tracks, a track frame, and a drive for driving the tracks to move on the track frame. By tilting the tracked walking mechanism 1f onto the stairs, the tracked walking mechanism 1f can propel the stair-climbing wheelchair upwards along the stairs. The front wheel 1b and the walking wheels 1a are used to support the wheelchair.

[0025] This hand-operated brake stair-climbing wheelchair uses a lever operated by the user to engage the brake handle, causing the rotating rod to contact the tire surface and brake the wheelchair. This braking method provides greater friction. Furthermore, pressing the handle locks the brake lever to its original position, ensuring long-term locking. Users can briefly remove their hands from the handles, and the wheelchair does not need to be obstructed by objects when not in use.

[0026] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A hand-operated brake-type stair-climbing wheelchair, characterized in that: The stair-climbing wheelchair includes a main body (1), a brake handle (2), a brake cable (3), a flexible pusher (4), a hinge seat (5), and a rotating rod (6). The brake handle (2) is fixedly installed on the push handle (1d) of the stair-climbing wheelchair main body (1). The hinge seat (5) is fixedly installed on the stair-climbing wheelchair main body (1) and is located above the walking wheels (1a) of the stair-climbing wheelchair main body (1). The middle part of the rotating rod (6) is rotatably installed on the hinge seat (5). The brake cable (3) includes a steel cable (3a) and a steel cable sleeve (3b). The steel cable (3a) can... The cable is slidably inserted into the cable sleeve (3b). One end of the cable sleeve (3b) is fixedly connected to the outer shell of the brake lever (2), and the other end of the cable sleeve (3b) is fixedly connected to the hinge seat (5). One end of the cable (3a) is fixedly connected to the left side of the rotating rod (6), and the other end of the cable (3a) is fixedly connected to the handle (2a) of the brake lever (2). The elastic pusher (4) is installed on the hinge seat (5). The elastic pusher (4) is used to apply a downward elastic force to the left side of the rotating rod (6), so that the right side of the rotating rod (6) moves away from the walking wheel (1a).

2. The hand-operated brake stair-climbing wheelchair as described in claim 1, characterized in that, The brake grip (2) is a brake grip (2) carrying a brake lock (2b). When the handle (2a) is pressed, the brake lock (2b) is used to lock the position of the handle (2a) after it moves.

3. The hand-operated brake stair-climbing wheelchair as described in claim 1, characterized in that, The elastic pusher (4) is a spring, one end of which abuts against the hinge seat (5), and the other end of the spring abuts against the left side of the rotating rod (6).

4. The hand-operated brake stair-climbing wheelchair as described in claim 3, characterized in that, A limit stop (5a) is fixedly installed on the hinge seat (5). The limit stop (5a) is used to limit the left side contact of the rotating rod (6).

5. The hand-operated brake stair-climbing wheelchair as described in claim 1, characterized in that, A bent part (6a) is fixedly provided on the right side of the rotating rod (6). The bent part (6a) is used to contact the outer edge of the walking wheel (1a). A flange (6b) is fixedly provided at the bottom of the rotating rod (6). The bottom of the elastic pusher (4) abuts against the top of the flange (6b). One end of the steel cable (3a) is fixedly connected to the flange (6b).

6. The hand-operated brake stair-climbing wheelchair as described in claim 1, characterized in that, A mounting plate (5b) is fixedly installed on the hinge seat (5), the bottom of the steel cable sleeve (3b) is fixedly connected to the mounting plate (5b), and the top of the elastic pusher (4) abuts against the mounting plate (5b).

7. The hand-operated brake stair-climbing wheelchair as described in claim 1, characterized in that, The stair-climbing wheelchair body (1) also includes a front wheel (1b), a seat (1c), armrests (1e), a tracked walking mechanism (1f), and an angle adjustment mechanism (1h). Two push handles (1d) are fixedly installed on both sides of the vertical frame (1j), and the push handles (1d) are fixedly installed on the top of the vertical frame (1j). The seat (1c) is fixedly installed on the left side of the vertical frame (1j). The tracked walking mechanism (1f) is located on the right side of the vertical frame (1j). The bottom of the tracked walking mechanism (1f) is hinged to the vertical frame (1j). The angle adjustment mechanism (1h) is fixedly installed on the vertical frame (1j).

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