Wheelchair

Abstract

The wheelchair comprises a wheelchair body, the wheelchair body comprises a frame, pedals arranged on the front section of the frame in a connected mode and two arc-shaped pipe rods arranged on the rear portion of the frame, sleeve rods are fixedly connected to the ends of the two arc-shaped pipe rods, threaded sleeves are arranged in the arc-shaped pipe rods, threaded heads are fixedly connected to the ends of the sleeve rods, and the threaded heads are fixedly connected to the ends of the threaded heads. And the threaded sleeve is detachably connected with the threaded head. Compared with the prior art, the foldable wheelchair has the advantages that the handlebar is convenient to disassemble and assemble, the horizontal length of the wheelchair in a folded state can be reduced after the handlebar of the wheelchair is disassembled, the size of the folded wheelchair can be further reduced, and the wheelchair can be more conveniently placed in various storage spaces.

Description

Technical Field

[0001] The utility model relates to the technical field of handle disassembly and assembly structures, in particular to a disassembly and assembly structure of a wheelchair handle. Background Art

[0002] With the development of modern society, the use of wheelchairs has greatly facilitated the daily lives of the elderly and disabled. Wheelchairs not only meet the needs of people with limited mobility, but more importantly, they are convenient for family members to move and take care of patients, allowing patients to exercise and participate in social activities with the help of wheelchairs. At present, wheelchairs are equipped with wheelchair handles on the back of the wheelchair to facilitate the caregivers to push them, but there are still some problems with the existing wheelchair handles when using them.

[0003] In the prior art, the handles on the back of the wheelchair are mostly one-piece molded. When the handles are bent or damaged, they are difficult to replace. Some detachable handles are connected to the wheelchair by simply opening matching threads on the handles and the wheelchair body. After long-term use, the threads are prone to stripping, which is not conducive to subsequent use. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the above technical defects and provide a wheelchair handle disassembly and assembly structure which is easy to operate and use, can be disassembled and assembled for maintenance as needed, and is convenient for replacing vulnerable parts.

[0005] In order to solve the above technical problems, the technical solution provided by the utility model is: a disassembly and assembly structure of a wheelchair handle, comprising a wheelchair body, the wheelchair body comprising a frame, a footrest connected to the front section of the frame and two arc-shaped tube rods arranged at the rear section of the frame, the ends of the two arc-shaped tube rods are fixedly connected with a sleeve rod, a screw sleeve is arranged in the arc-shaped tube rod, the end of the sleeve rod is fixedly connected with a threaded head, and the screw sleeve and the threaded head are detachably connected.

[0006] An outer side wall of the sleeve rod is slidably sleeved with an outer protective sleeve, the cross section of the outer protective sleeve is a horizontally arranged I-shaped sleeve, and an anti-slip and breathable group is provided on the outer protective sleeve.

[0007] Furthermore, the anti-slip and breathable group includes external protrusions and grooves, and the external protrusions and grooves are evenly and alternately arranged on the outer protective sleeve.

[0008] Furthermore, the outer protrusions and the grooves are both prismatic in shape.

[0009] Furthermore, a threaded head is fixedly connected to the end of the sleeve rod, and a screw sleeve is threadedly sleeved on the end of the threaded head. The outer wall of the screw sleeve is abutted against the inner wall of the arc-shaped tube rod.

[0010] Furthermore, a welding hole is provided at the end of the sleeve rod, and the threaded head is inserted into the sleeve rod and fixed by welding through the welding hole.

[0011] Furthermore, the screw sleeve is a nut made of metal material, and the screw sleeve is directly interference-fitted in the arc-shaped tube rod, so that the screw sleeve is fixed to the arc-shaped tube rod, and the thread head is fixed with the nut, thereby fixing the wheelchair handle.

[0012] In another embodiment, the threaded sleeve includes an internally threaded sleeve and a matching sleeve sleeved on the outer wall of the internally threaded sleeve. The matching sleeve is made of metal and is inserted into the arc-shaped tube rod to have an interference fit therewith.

[0013] Furthermore, an electric drive wheel is connected to the lower end of the frame, a crossbeam is connected between the two arc-shaped tube rods, and a first controller is connected to the electric drive wheel on the crossbeam.

[0014] Furthermore, handrails are provided on both sides of the frame, and a second controller is provided on any of the handrails and connected to the electric drive wheel.

[0015] The advantages of the utility model compared with the prior art are:

[0016] In the present application, the handle assembly is equipped with a plurality of assembleable components so that components can be replaced during daily maintenance;

[0017] In the present application, the handle is connected to the arc-shaped tube rod through the screw sleeve at the end, which is convenient for disassembly and assembly; at the same time, the outer protective sleeve is set in an I-shaped shape, and the anti-slip breathable group on the upper part is convenient for holding, preventing the hand from slipping;

[0018] In the present application, the threaded connection of the handle connection end is arranged on a detachable threaded head and an internal threaded sleeve, which is convenient for replacing and using vulnerable parts;

[0019] The structure of the present application can realize the rapid disassembly and installation of the wheelchair handle. The removed wheelchair handle can reduce the horizontal length of the wheelchair in the folded state, which helps to further reduce the volume of the wheelchair after folding, making it more convenient to put it into various storage spaces. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The present invention is a structural schematic diagram of a disassembly and assembly structure of a wheelchair handle.

[0021] Figure 2 It is an enlarged schematic diagram of the handle assembly structure.

[0022] As shown in the figure: 1. frame; 2. pedal; 3. arc-shaped tube rod; 4. sleeve rod; 5. outer protective sleeve; 6. outer protrusion; 7. groove; 8. threaded head; 9. internal threaded sleeve; 10. matching sleeve; 11. electric drive wheel; 12. first controller; 13. armrest; 14. second controller. DETAILED DESCRIPTION

[0023] The specific implementation of the utility model is further described below in conjunction with the accompanying drawings, wherein the same parts are represented by the same reference numerals.

[0024] It should be noted that the words "front", "rear", "left", "right", "up" and "down" used in the following description refer to directions in the drawings, and the words "inside" and "outside" refer to directions toward or away from the geometric center of a specific component, respectively.

[0025] It should be noted that when an element is referred to as being "fixed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are for illustrative purposes only.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly connected by technicians in the technical field to which the present invention belongs. The terminology used in the specification of the present invention is for the purpose of describing specific embodiments and is not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0027] In order to make the contents of the present invention more clearly understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention.

[0028] Please refer to the attached Figure 1-2 A disassembly and assembly structure of a wheelchair handle comprises a wheelchair body, wherein the wheelchair body comprises a frame 1, a footrest 2 connected to the front section of the frame 1 and two arc-shaped tube rods 3 arranged at the rear section of the frame 1. In order to facilitate the use of the wheelchair, an electric drive wheel 11 is connected to the lower end of the frame 1, a crossbeam is connected between the two arc-shaped tube rods 3, a first controller 12 is connected to the electric drive wheel 11 on the crossbeam, armrests 13 are provided on both sides of the frame 1, a second controller 14 is connected to the electric drive wheel 11 on any of the armrests 13, and the use of the wheelchair can be controlled by a user or a caregiver through the cooperation of the first controller 12 and the second controller 14.

[0029] In order to facilitate the use of caregivers, the ends of the two arc-shaped tube rods 3 are fixedly connected with a sleeve rod 4, and the outer side wall of the sleeve rod 4 is slidably sleeved with an outer protective sleeve 5. The cross-section of the outer protective sleeve 5 is a horizontally set I-shaped to prevent hands from slipping. The outer protective sleeve 5 is provided with an anti-slip and breathable group, wherein the anti-slip and breathable group includes external protrusions 6 and grooves 7, and the external protrusions 6 and grooves 7 are evenly staggered on the outer protective sleeve 5, and the outer protective sleeve 5 has evenly staggered and evenly distributed external protrusions 6 and grooves 7.

[0030] In order to facilitate the disassembly and assembly of the handle and the replacement and maintenance of parts, a threaded head 8 is fixedly connected to the end of the sleeve rod 4, and a screw sleeve is threadedly sleeved on the end of the threaded head 8. The outer wall of the screw sleeve is set against the inner wall of the arc-shaped tube rod 3.

[0031] For fixing the internal thread head 8 of the sleeve rod 4, a welding hole is provided at the end of the sleeve rod 4, and the thread head 8 is inserted into the sleeve rod 4 and fixed by welding through the welding hole.

[0032] In one embodiment

[0033] The screw sleeve includes an internally threaded sleeve 9 and a matching sleeve 10 which is sleeved on the outer wall of the internally threaded sleeve 9. The outer wall of the matching sleeve 10 abuts against the inner wall of the arc-shaped pipe rod 3 to form an interference fit. By setting the double layer of the screw sleeve, the parts can be further assembled and separated, which is convenient for the replacement and use of individual parts. The nut can also be used instead of the screw sleeve.

[0034] In one embodiment

[0035] The outer protrusions 6 and the grooves 7 are both prism-shaped. The prism-shaped outer protrusions 6 increase the anti-slip effect, and the staggered arrangement increases the hand touch.

[0036] When the utility model is implemented, according to actual needs, when the parts of the handle assembly need to be replaced, the independent components such as the outer protective sleeve, sleeve rod, threaded head, internal threaded sleeve, and matching sleeve can be replaced. When assembled, the outer protective sleeve is sleeved with the sleeve rod, the threaded head is sleeved with the sleeve rod, the threaded head is sleeved with the internal threaded sleeve, and the matching sleeve is sleeved with the outside of the internal threaded sleeve and inserted into the arc-shaped pipe rod to use the handle normally. The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0037] The standard parts used in the utility model can be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt the conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt the conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here. The content not described in detail in this specification belongs to the prior art known to professional and technical personnel in this field.

[0038] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A wheelchair, comprising a wheelchair body, wherein the wheelchair body comprises a frame (1) and two arc-shaped tube rods (3) arranged at the rear of the frame (1), characterized in that: The ends of the two arc-shaped pipe rods (3) are fixedly connected with a sleeve rod (4), a screw sleeve is arranged in the arc-shaped pipe rod (3), and a threaded head (8) is fixedly connected to the end of the sleeve rod (4), and the screw sleeve and the threaded head (8) are detachably connected; the outer wall of the screw sleeve is arranged to abut against the inner wall of the arc-shaped pipe rod (3), and the two are interference fit; a welding hole is arranged on the sleeve rod (4), the threaded head (8) is inserted into the sleeve rod (4), and the threaded head (8) at least partially covers the welding hole, and the threaded head (8) and the sleeve rod (4) are welded and fixed through the welding hole; the screw sleeve comprises an internal threaded sleeve (9) arranged inside and a matching sleeve (10) sleeved on the outer wall of the internal threaded sleeve (9); an outer protective sleeve (5) is arranged outside the sleeve rod (4), and the outer protective sleeve (5) has uniformly staggered and evenly distributed external protrusions (6) and grooves (7).

2. A wheelchair according to claim 1, characterized in that: The threaded sleeve is a nut made of metal material.

3. A wheelchair according to claim 1, characterized in that: The outer protrusion (6) and the groove (7) are both prismatic in shape.

4. A wheelchair according to claim 1, characterized in that: The lower end of the vehicle frame (1) is connected to an electric drive wheel (11), a crossbeam is connected between the two arc-shaped tube rods (3), and a first controller (12) is provided on the crossbeam and connected to the electric drive wheel (11).

5. A wheelchair according to claim 1, characterized in that: Handrails (13) are provided on both sides of the vehicle frame (1), and a second controller (14) is provided on any of the handrails (13) and is connected to the electric drive wheel (11).

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