Wheelchair convenient to fold and store

Abstract

The utility model relates to the field of wheelchairs, and discloses a wheelchair convenient to fold and unfold, which comprises two frames, two connecting rods are rotatably connected to the inner sides of the frames, the middle parts of the two connecting rods are rotatably connected, supporting rods are fixedly connected to the outer sides of the connecting rods, and locking rods are rotatably connected to the outer parts of the connecting rods. A first supporting groove is rotatably connected to the outer side of the locking rod, two second supporting grooves are fixedly connected to the inner side of the frame, tires are rotatably connected to the outer side of the frame, universal wheels are rotatably connected to the bottom of the front side of the frame, and an adjusting assembly is installed on the front side of the frame and used for adjusting pedals of the wheelchair and comprises a shell. According to the folding and unfolding device, the two supporting rods are pulled at the same time and matched with the locking rods to pull the first supporting grooves so that the two frames can be drawn close to each other, the supporting rods are supported through the second supporting grooves when the folding and unfolding device is used, time and labor are saved when the folding and unfolding device is folded or unfolded, one person can operate the folding and unfolding device, and working efficiency is effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of wheelchair, especially convenient folding of wheelchair of folding. BACKGROUND

[0002] Wheelchair is a kind of auxiliary tool specially designed for people with difficulty in moving, aims at providing convenience and support, it is usually composed of frame, seat, wheel and footboard, wheelchair is divided into manual and electric two types, manual wheelchair relies on the strength of user or assistant to push, is suitable for the user with good physical strength and can operate independently, and electric wheelchair is driven by battery, is suitable for the crowd with weak body or unable to use manual wheelchair, modern wheelchair design pays attention to comfort and adjustability, is equipped with soft cushion and backrest, and many styles also support height adjustment, inclination and rotation to meet the needs of different users.

[0003] The use of wheelchair not only improves the moving ability of user, but also improves their quality of life, makes them more conveniently participate in social activities, work and daily life, with the development of science and technology, many new type wheelchairs also integrate intelligent functions, such as automatic navigation and obstacle detection, further improve the safety and convenience of use, the popularization of wheelchair promotes the construction of barrier-free facilities, promotes the attention and respect of society to the rights and interests of disabled people.

[0004] In traditional wheelchair, most of them have folding function at present, but these wheelchairs need to manually force the fixed clamps to prevent automatic folding when using wheelchair, which is very inconvenient, and the user cannot fold or unfold independently, which is time-consuming and laborious, therefore, a kind of wheelchair convenient to fold is proposed to solve the above problems. UTILITY MODEL CONTENT

[0005] In order to make up for the above shortcomings, the utility model provides a kind of wheelchair convenient to fold, to improve the traditional wheelchair that needs to manually force the fixed clamps to prevent automatic folding when using wheelchair, which is very inconvenient, and the user cannot fold or unfold independently, which is time-consuming and laborious.

[0006] In order to realize the above purpose, the utility model adopts the following technical scheme: a kind of wheelchair convenient to fold, including two frames, the frame inner side is rotatably connected with two connecting rods, two the connecting rod middle part is rotatably connected, the connecting rod outer side is fixedly connected with support rod, the connecting rod outer rotatably connected with lock rod, the lock rod outer side is rotatably connected with support groove one, the frame inner side is fixedly connected with two support grooves two, the frame outer side is rotatably connected with tire, the frame front side bottom rotatably connected with universal wheel, the frame front side is equipped with adjusting assembly, the adjusting assembly is used to adjust the pedal of wheelchair.

[0007] As a further description of the above technical scheme:

[0008] The adjusting assembly comprises an outer shell, the outer shell is slidably connected to the front side of the frame, a pedal is rotatably connected to the inner side of the outer shell, a pull rod is slidably connected to the inner part of the outer shell, a baffle is fixedly connected to the front end of the pull rod, a spring is fixedly connected to the rear side of the baffle, a fixing hole is formed in the inner part of the pull rod, a plug rod is fixedly connected to the rear side of the pull rod, a limiting rod is slidably connected to the rear side of the outer shell, and a blocking ring is fixedly connected to the outer part of the limiting rod.

[0009] As a further description of the above technical solution:

[0010] The outer part of the supporting rod is abutted with the top of the two supporting grooves, and the top of the first supporting groove is fixedly connected to the outer part of the frame.

[0011] As a further description of the above technical solution:

[0012] The outer side of the tire is fixedly connected with a handle.

[0013] As a further description of the above technical solution:

[0014] The outer part of the baffle is slidably connected to the inner wall of the outer shell, and the outer part of the plug rod is slidably connected to the inner part of the outer shell.

[0015] As a further description of the above technical solution:

[0016] The rear end of the spring is fixedly connected to the inner wall of the outer shell, and the inner part of the spring is sleeved on the outer part of the pull rod.

[0017] As a further description of the above technical solution:

[0018] The bottom of the limiting rod is inserted into the inner part of the fixing hole.

[0019] As a further description of the above technical solution:

[0020] The outer part of the plug rod is inserted into the inner part of the front side of the frame, and the bottom of the limiting rod is slidably connected to the top of the pull rod.

[0021] The utility model has the advantages of saving time and effort, being easy to operate by one person, and improving work efficiency.

[0022] 1、The utility model discloses a two-frame folding bicycle, which comprises a frame, two supporting rods, two supporting grooves, a pedal, a pull rod, a baffle, a spring, a plug rod and a limiting rod.

[0023] 2. In the present invention, by pulling the pull rod, the baffle compresses the spring, and at the same time the insertion rod moves backward and is pulled out from the frame, so that the height of the footrest can be quickly adjusted to accommodate users with different leg lengths. At the same time, the limit rod is inserted into the fixing hole to prevent the insertion rod from automatically resetting when the shell is moved. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a three-dimensional schematic diagram of a wheelchair that is easy to fold and store, as proposed by the present invention;

[0025] Figure 2 This is a schematic structural diagram of a wheelchair tire that is easy to fold and store, as proposed by the present invention;

[0026] Figure 3 for Figure 2 A magnified view of point A in the figure;

[0027] Figure 4 This is a schematic structural diagram of a wheelchair footrest that is easy to fold and retract, as proposed by the present invention;

[0028] Figure 5 The present invention is a schematic structural diagram of a wheelchair shell that is easy to fold and store.

[0029] Legend:

[0030] 1. Frame; 2. Connecting rod; 3. Support rod; 4. Locking rod; 5. Support slot 1; 6. Support slot 2; 7. Tire; 8. Universal wheel; 9. Housing; 10. Pull rod; 11. Baffle; 12. Spring; 13. Fixing hole; 14. Insert rod; 15. Limit rod; 16. Retaining ring; 17. Handle; 18. Pedal. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0032] Reference Figure 1 - Figure 5The utility model provides an embodiment: a wheelchair that is easy to fold and store, including two frames 1, the inner side of the frame 1 is rotatably connected to two connecting rods 2, the middle parts of the two connecting rods 2 are rotatably connected, the outer side of the connecting rod 2 is fixedly connected to a support rod 3, the outer side of the connecting rod 2 is rotatably connected to a locking rod 4, the outer side of the locking rod 4 is rotatably connected to a support groove 1 5, the inner side of the frame 1 is fixedly connected to two support grooves 2 6, the outer side of the frame 1 is rotatably connected to a tire 7, and the bottom front side of the frame 1 is rotatably connected to a universal wheel 8. The frame 1 is the support of the entire wheelchair, used to support the weight of the user, the connecting rod 2 is used to control the folding and unfolding of the wheelchair, and the support rod 3 is used to press the weight on the support On the support slot 2 6, the locking rod 4 is used to pull the support slot 1 5 to drive the frame 1 to move. The support slot 1 5 is fixed on the frame 1. The support slot 2 6 is used to support the support rod 3 and bear the weight of the entire user. The tire 7 is used to drive the wheelchair to move forward and backward. The universal wheel 8 is used to control the left and right steering of the wheelchair. An adjustment component is installed on the front side of the frame 1. The adjustment component is used to adjust the pedals of the wheelchair. The outside of the support rod 3 is in contact with the top of the two support slots 2 6 to bear all the weight. The top of the support slot 1 5 is fixedly connected to the outside of the frame 1. The outside of the tire 7 is fixedly connected to a handle 17. The handle 17 is used to facilitate the user to manually rotate the tire 7 to drive the wheelchair to move.

[0033] Reference Figure 1 - Figure 5The adjusting assembly comprises a shell 9, the shell 9 is slidably connected to the front side of the frame 1, a foot pedal 18 is rotatably connected to the inner side of the shell 9, a pull rod 10 is slidably connected to the inner part of the shell 9, a baffle 11 is fixedly connected to the front end of the pull rod 10, a spring 12 is fixedly connected to the rear side of the baffle 11, a fixed hole 13 is formed in the pull rod 10, a plug rod 14 is fixedly connected to the rear side of the pull rod 10, a limiting rod 15 is slidably connected to the rear side of the shell 9, a stop ring 16 is fixedly connected to the outer part of the limiting rod 15, the shell 9 is used for connecting and protecting the internal parts, the pull rod 10 is used for facilitating manual pulling, the baffle 11 is used for compressing the spring 12, the baffle 11 is used for bearing the thrust from the spring 12 and moving the pull rod 10, the spring 12 is used for applying pressure to the baffle 11 and resetting the pull rod 10, the fixed hole 13 is used for cooperating with the limiting rod 15 to lock the pull rod 10 and avoid automatic resetting, the stop ring 16 is used for limiting the movement distance of the limiting rod 15 and avoiding falling off, the foot pedal 18 is used for placing the feet of a user to keep the user stable, the baffle 11 is slidably connected to the inner wall of the shell 9 to limit the movement direction of the baffle 11 and avoid shaking, the plug rod 14 is slidably connected to the inner part of the shell 9 to limit the movement direction of the plug rod 14, the rear end of the spring 12 is fixedly connected to the inner wall of the shell 9, the spring 12 is sleeved on the outer part of the pull rod 10 to keep the spring 12 stable, the bottom of the limiting rod 15 is inserted into the fixed hole 13 to lock the pull rod 10 and facilitate moving the shell 9, the outer part of the plug rod 14 is inserted into the inner part of the front side of the frame 1, the plug rod 14 is inserted into the frame 1 to realize height adjustment, and the bottom of the limiting rod 15 is slidably connected to the top of the pull rod 10.

[0034] Working principle: when the device is used, first, the wheelchair is unfolded, and the frame 1 is pulled to the two sides at the same time, the connecting rod 2 is driven to move the supporting rod 3 downward to contact with the supporting groove two 6, then the height of the foot pedal 18 is adjusted according to the user, the pull rod 10 is pulled first, the baffle 11 compresses the spring 12, at the same time, the plug rod 14 is driven to move backward until the limiting rod 15 falls into the fixed hole 13 to lock the pull rod 10, at this time, the shell 9 can be moved at will, when the shell 9 is moved to the appropriate position, the limiting rod 15 is pulled under the limiting of the stop ring 16, at this time, the spring 12 will instantaneously push the baffle 11, the pull rod 10 is reset, the plug rod 14 is reinserted into the frame 1 to realize height adjustment, when the use is completed, the supporting rod 3 is pulled to the middle at the same time, the lock rod 4 pulls the supporting groove one 5 to drive the two frames 1 to move to the middle at the same time to realize folding, the whole operation is simple and convenient, time and labor are saved.

[0035] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application has been described in detail, for the skilled in the art, it still can be modified, or for part of the technical features of the equivalent replacement, the spirit and principles of the present application, made any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.

Claims

1. A wheelchair that is easy to fold, comprising two frames (1), characterized in that: The frame (1) is rotatably connected with two connecting rods (2), the middle part of the two connecting rods (2) is rotatably connected, the outer side of the connecting rod (2) is fixedly connected with a support rod (3), the outer part of the connecting rod (2) is rotatably connected with a lock rod (4), the outer side of the lock rod (4) is rotatably connected with a support groove (5), the inner side of the frame (1) is fixedly connected with two support grooves (6), the outer side of the frame (1) is rotatably connected with a tire (7), the front bottom of the frame (1) is rotatably connected with a universal wheel (8), the front side of the frame (1) is provided with an adjusting assembly, and the adjusting assembly is used for adjusting the pedal of the wheelchair.

2. The wheelchair of claim 1, wherein: The adjusting assembly comprises an outer shell (9), the outer shell (9) is slidably connected inside the frame (1) and outside the front side, the inner side of the outer shell (9) is rotatably connected with a foot pedal (18), the inner part of the outer shell (9) is slidably connected with a pull rod (10), the front end of the pull rod (10) is fixedly connected with a baffle (11), the rear side of the baffle (11) is fixedly connected with a spring (12), the inner part of the pull rod (10) is provided with a fixed hole (13), the rear side of the pull rod (10) is fixedly connected with a plug rod (14), the rear side of the outer shell (9) is slidably connected with a limiting rod (15), and the outer part of the limiting rod (15) is fixedly connected with a blocking ring (16).

3. The wheelchair of claim 1, wherein: The outer part of the support rod (3) and the top of the two support grooves (6) are abutted, and the top of the support groove (5) is fixedly connected with the outer part of the frame (1).

4. The wheelchair of claim 1, wherein: The outer side of the tire (7) is fixedly connected with a handle (17).

5. The wheelchair of claim 2, wherein: The outer part of the baffle (11) is slidably connected with the inner wall of the outer shell (9), and the outer part of the plug rod (14) is slidably connected with the inner part of the outer shell (9).

6. The wheelchair of claim 2, wherein: The rear end of the spring (12) is fixedly connected with the inner wall of the outer shell (9), and the inner part of the spring (12) is sleeved with the outer part of the pull rod (10).

7. The wheelchair of claim 2, wherein: The bottom of the limiting rod (15) is inserted into the inner part of the fixed hole (13).

8. The wheelchair of claim 2, wherein: The outer part of the plug rod (14) is inserted into the inner part of the frame (1), and the bottom of the limiting rod (15) is slidably connected with the top of the pull rod (10).

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