CN110693655B - Dismounting structure between auxiliary walking device and wheelchair main body and wheelchair - Google Patents

Abstract

The invention provides a disassembly and assembly structure between an auxiliary walking device and a wheelchair main body and a wheelchair. The first assembly part is arranged between the frame of the wheelchair main body and the auxiliary walking device, comprises a positioning part constructed on the frame and a positioning matching part constructed on the auxiliary walking device, and is internally provided with a locking mechanism which can be triggered by the entering of the positioning part to lock the positioning part in the positioning matching part; and an operating device capable of unlocking the locking mechanism is arranged on the auxiliary walking device. The dismounting structure between the auxiliary walking device and the wheelchair main body can improve the convenience of dismounting operation of the auxiliary walking device on the wheelchair.

Description

Disassembly and assembly structure between auxiliary walking device and wheelchair main body and wheelchair

Technical Field

The present invention relates to the technical field of medical rehabilitation products, and in particular to a disassembly and assembly structure between an auxiliary walking device and a wheelchair body. The present invention also relates to a wheelchair.

Background Art

In the prior art, in order to facilitate wheelchair users to exercise independently and prevent muscle atrophy, most people need to use auxiliary walking devices, such as crutches. The crutches have a simple structure and are easy to use, but they are large in size and inconvenient to carry. It is difficult for wheelchair users to carry crutches.

A walking-assist device can assist users with mobility impairments in walking and exercising through hand support, while a wheelchair is a means of transportation for those with mobility impairments, and the two often need to be used in conjunction with each other.

Existing wheelchairs and assisted walking devices are produced separately, and both need to be carried separately. It is very difficult for users of wheelchairs or assisted walking devices to carry both at the same time, and both need to be used frequently. Therefore, designing a wheelchair with an integrated assisted walking device that can be easily disassembled and assembled on the wheelchair has become an important direction of wheelchair research and development.

Summary of the invention

In view of this, the present invention aims to provide a disassembly and assembly structure between an auxiliary walking device and a wheelchair body, so as to improve the convenience of disassembly and assembly operation of the auxiliary walking device on the wheelchair.

To achieve the above object, the technical solution of the present invention is achieved as follows:

A disassembly and assembly structure between an auxiliary walking device and a wheelchair body, comprising:

The first assembly part is arranged between the frame of the wheelchair body and the auxiliary walking device, and includes a positioning part constructed on the frame and a positioning matching part constructed on the auxiliary walking device. A locking mechanism is arranged in the positioning matching part, which can be triggered by the entry of the positioning part to lock the positioning part in the positioning matching part; and an operating device for unlocking the locking mechanism is arranged on the auxiliary walking device.

Furthermore, magnetic materials are disposed in the positioning portion and the positioning matching portion; when the positioning portion is close to the positioning matching portion, the positioning portion can be adsorbed into the positioning matching portion due to magnetic force.

Furthermore, the positioning matching part is a positioning groove constructed on the supporting part of the auxiliary walking device, and a trigger pin that can trigger the locking mechanism due to the pressing of the positioning part is arranged at the bottom of the positioning groove; the positioning part is a protrusion constructed on the bonding platform of the frame, and a neck groove is constructed at the connecting part between the positioning part and the bonding platform; the locking mechanism has a claw that can be clamped in the neck groove.

Furthermore, the positioning portion is arranged at the front or both sides of the wheelchair body, and the outer shape of the positioning portion is a shrinking shape with a gradually smaller size from the neck groove to the end of the positioning portion.

Furthermore, it also includes a second assembly part; the second assembly part includes a fixed hook constructed on the frame, and a movable hook constructed on the auxiliary walking device; the movable hook is hinged to the auxiliary walking device and is equipped with a tension spring; the tension spring constitutes a pre-tightening force for the movable hook and the fixed hook to be hooked.

Furthermore, the second assembly part also includes a connecting part arranged above the fixed hook, and a connecting matching part corresponding to the connecting part and arranged above the movable hook; a plurality of metal elastic protrusions insulated from the frame are arranged on the connecting part, and metal connecting points insulated from the connecting matching part and corresponding to the number of the elastic protrusions are constructed on the connecting matching part; when the auxiliary walking device is assembled on the wheelchair body, the elastic protrusions and the connecting points can constitute electrical connection between the auxiliary walking device and the wheelchair body.

Furthermore, the operating device includes a pull wire connected to the locking mechanism and the movable hook, and an operating rod capable of pulling the pull wire.

Furthermore, the second assembly portion is arranged above the first assembly portion.

Compared with the prior art, the present invention has the following advantages:

The assembly and disassembly structure between the auxiliary walking device and the wheelchair body of the present invention can facilitate the introduction and positioning of the auxiliary walking device during the assembly process of the wheelchair through the arrangement of the positioning part and the positioning matching part. The locking mechanism and the operating device are arranged on the auxiliary walking device to facilitate the locking and disassembly of the auxiliary walking device on the wheelchair, thereby improving the convenience of the assembly and disassembly operation of the auxiliary walking device on the wheelchair, making the wheelchair integrated with the auxiliary walking device more suitable for wheelchair users with poor operating ability. The use of magnetic adsorption positioning can make the assembly and introduction positioning of the auxiliary walking device on the wheelchair more convenient, thereby further improving the convenience of the assembly and operation of the auxiliary walking device on the wheelchair.

At the same time, by setting a neck groove on the positioning part, the wheelchair and the auxiliary walking device are clamped and connected by the claws on the auxiliary walking device, and the claws can be in a standby state by using the support plate. When the trigger pin is pressed and triggered, the locking mechanism can be automatically locked. The structure is simple and ingenious, and has good technical feasibility. The second assembly part using a hook method is set between the wheelchair and the auxiliary walking device, which can further strengthen the assembly firmness of the auxiliary walking device on the wheelchair.

In addition, an electrical connection mechanism is provided between the wheelchair and the auxiliary walking device, which can form a circuit connection between the two when the assembly is completed, facilitating the installation of electrical components, intelligent equipment, etc. on the wheelchair and the auxiliary walking device. By using a pull wire as an operating connection, the claw and the movable hook can be operated at the same time, and the connection locks of the second assembly part and the first assembly part can be released synchronously by controlling the operating lever, making the disassembly between the auxiliary walking device and the wheelchair very convenient.

Another object of the present invention is to provide a wheelchair, comprising a wheelchair body and an auxiliary walking device that can be detached from the wheelchair body, wherein the disassembly and assembly structure between the auxiliary walking device and the wheelchair body described in the present invention is adopted between the wheelchair body and the auxiliary walking device.

Furthermore, the auxiliary walking device has two supporting parts that can be symmetrically arranged on the left and right sides of the wheelchair body. When the auxiliary walking device is assembled on the wheelchair body, the two supporting parts can constitute support for the arms of a person sitting on the wheelchair body.

Compared with the prior art, the wheelchair proposed by the present invention makes it very convenient to disassemble and assemble the auxiliary walking device on the wheelchair, and is suitable for wheelchair or auxiliary walking device users with weak operating ability. At the same time, the two supporting parts used for the auxiliary walking device to assist walking are exactly located at the supporting part position of the wheelchair when the auxiliary walking device is assembled on the wheelchair, thereby realizing the dual purpose of the auxiliary walking device; making the design of the wheelchair integrated with the auxiliary walking device more scientific and the performance better.

BRIEF DESCRIPTION OF THE DRAWINGS

The accompanying drawings, which constitute part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention. The directional terms such as front and back, up and down, etc. involved therein are only used to indicate relative positional relationships and do not constitute improper limitations on the present invention. In the accompanying drawings:

FIG1 is a schematic diagram of the overall three-dimensional structure of an auxiliary walking device and a wheelchair body assembled as one according to Embodiment 1 of the present invention;

FIG2 is a schematic diagram of the three-dimensional structure of the wheelchair body according to the first embodiment of the present invention;

FIG3 is a schematic diagram of the three-dimensional structure of the auxiliary walking device according to the first embodiment of the present invention;

FIG4 is a schematic diagram of an assembly of two separate parts of the auxiliary walking device according to the first embodiment of the present invention connected as one by a first connecting rod and a second connecting rod;

FIG5 is a schematic cross-sectional view of the first connecting rod according to the first embodiment of the present invention;

FIG6 is a schematic cross-sectional view of the second connecting rod according to the first embodiment of the present invention;

FIG7 is a partial enlarged view of the portion shown at point A in FIG1 ;

Fig. 8 is a schematic diagram of the cross-sectional structure of the portion indicated by B-B in Fig. 7;

Fig. 9 is a schematic diagram of the cross-sectional structure of the portion shown by C-C in Fig. 8;

10 is a schematic diagram of the partial structure of a supporting portion of a monitoring device installed on the auxiliary walking device according to the second embodiment of the present invention;

Description of reference numerals:

1- wheelchair body, 100- frame, 101- seat cushion, 102- backrest, 103- push handle, 104- main wheel, 105- secondary wheel, 106- folding rod, 107- foot support, 108- foot support shaft;

2-auxiliary walking device, 200-support part, 201-foot beam, 202-inclined beam, 203-ratchet shaft, 204-ratchet, 2040-ratchet rod, 205-support part, 206-operating rod, 207-pull wire, 208-roller, 210-connecting groove, 220-storage groove, 221-transfer groove;

3-second assembly part, 301-fixed hook, 302-communication part, 303-elastic protrusion, 310-second assembly seat, 311-movable hook, 3110-movable hook shaft, 3111-connecting plate, 3112-tension spring, 312-communication matching part, 313-communication point;

4-first assembly part, 401-fitting platform; 402-positioning part, 4020-neck groove, 410-first assembly seat, 411-claw, 412-claw rotating shaft, 413-claw tension spring, 414-positioning matching part, 420-trigger pin, 421-trigger plate, 422-trigger plate shaft, 430-supporting plate, 431-supporting plate shaft, 432-supporting block, 433-spring seat;

5-first connecting rod, 501-connecting head;

6-second connecting rod, 600-connecting rod shaft, 601-rotating end, 602-sliding end, 603-locating pin;

701-telescopic rod, 702-telescopic rod piston, 703-conducting hole, 704-telescopic cavity, 705-telescopic rod receiving body, 7050-sealing ring, 7051-positioning groove;

8-Monitoring device.

DETAILED DESCRIPTION

It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

In addition, in the description of the present invention, the directional nouns such as left, right, up, and down are used for the convenience of description and are based on the terms in the illustrated state, and should not be understood as constituting a limitation on the structure of the present invention; the first, second, third, etc. mentioned are also for the convenience of description and should not be understood as indicating or implying relative importance. In the embodiments of the present invention, the auxiliary walking device mentioned refers to a device that assists the user in walking exercise, which can be a crutch, a frame-type walker, or the like, and can be a device with rollers or a device without rollers.

The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

Embodiment 1

The present embodiment relates to a disassembly and assembly structure between an auxiliary walking device and a wheelchair body, which can improve the convenience of disassembly and assembly of the auxiliary walking device on the wheelchair. The disassembly and assembly structure between the auxiliary walking device and the wheelchair body has a first assembly part, which is arranged between the frame of the wheelchair and the auxiliary walking device, and includes a positioning part constructed on the frame, and a positioning matching part constructed on the auxiliary walking device, and a locking mechanism is arranged in the positioning matching part, which can be triggered by the entry of the positioning part and lock the positioning part in the positioning matching part; and an operating device for unlocking the locking mechanism is arranged on the auxiliary walking device.

Based on the above-mentioned overall structural principle, this embodiment uses the following exemplary structural description to illustrate the technical solution and implementation methods of the present invention.

As shown in Figure 1, the disassembly and assembly structure between the auxiliary walking device and the wheelchair body is arranged between the frame 100 of the wheelchair body 1 and the supporting part 200 of the auxiliary walking device 2. Only the first assembly part 4 can be set, or the second assembly part 3 and the first assembly part 4 can be set at the same time.

It should be noted in advance that the wheelchair body 1 can be an ordinary push-type wheelchair or an electric wheelchair. Similarly, the disassembly and assembly structure between the auxiliary walking device and the wheelchair body is also applicable to a foldable wheelchair. When the wheelchair needs to be folded, the auxiliary walking device 2 can be removed first, and then the wheelchair body 1 can be folded.

FIG2 shows the overall structure of a common wheelchair body 1, which includes a seat cushion 101 for people to sit on and a backrest 102 for people to lean on; a push handle 103 is used for caregivers to push the wheelchair, and a main wheel 104 and a secondary wheel 105 are used for walking and rolling; a folding rod 106 is put together and folded when the wheelchair body 1 is folded, and the seat cushion 101 is folded in it at the same time. It should be noted that as a foldable wheelchair, the seat cushion 101 must be made of materials such as cloth and fiber fabrics that are easy to fold. In addition, a footrest 107 is used to place the feet of the passenger, and a footrest shaft 108 is used to rotate and fold the footrest 107 to facilitate the folding of the wheelchair body 1.

As shown in FIG. 1 in combination with FIG. 2 and FIG. 3 , the second assembly portion 3 and the first assembly portion 4 are disposed between a frame 100 for connecting components on the wheelchair body 1 and a support portion 200 of the auxiliary walking device 2 .

FIG3 shows a split-type auxiliary walking device, which consists of two auxiliary walking parts symmetrically arranged and assembled on the wheelchair body 1. When used for walking assistance, as shown in FIG4, the auxiliary walking device can be connected as a whole through the first connecting rod 5 and the second connecting rod 6, so that when it is assembled on the wheelchair body 1, it does not affect the normal use of the wheelchair body 1. Of course, the disassembly and assembly structure between the auxiliary walking device and the wheelchair body of the present invention is also applicable to a single-body auxiliary walking device similar to a crutch, or an integrated auxiliary walking device used by holding on to both hands.

In this embodiment, the auxiliary walking device 2 includes a supporting portion 205 and a supporting portion 200, and the supporting portion 200 can be designed in a frame form or a vertical pole form. In this embodiment, a vertical pole form is adopted, and a foot beam 201 is connected below the vertical pole, and an inclined beam 202 connected between the vertical pole and the foot beam 201 can also be provided. In order to increase the mobility of the walking aid split 2, a roller 208 can be installed at the bottom of the foot beam 201. The supporting portion 205 is supported above the supporting portion 200, and is used to support the hands or arms of the body. For example, it can be constructed in the form of an armrest.

In order to meet different height requirements, as shown in FIG4 , the supporting part 205 and the supporting part 200 of the auxiliary walking device 2 can be connected by a ratchet shaft 203, and a ratchet 204 can be provided; other adjustment structures can also be used to make the height of the supporting part 205 adjustable, thereby facilitating the improvement of the performance of the split-type walking device adapted to the wheelchair under different use conditions. In this embodiment, as a preferred solution, the supporting part 205 can be hinged to the top of the supporting part 200 via the ratchet shaft 203, a ratchet 204 is provided on the ratchet shaft 203, and an elastic member is added between the ratchet 204 and the supporting part 205 or the supporting part 200, and the locking block driven by the elastic member constitutes a rotation lock for the rotation of the ratchet 204. At the same time, a ratchet rod 2040 is provided on the supporting part 205, and the ratchet rod 2040 can constitute the release of the rotation lock under operation.

In this embodiment, as shown in Figures 3 and 4, the split walking aid device adapted for the wheelchair includes two symmetrically arranged auxiliary walking devices 2, the auxiliary walking device 2 has a supporting portion 205 for the user to hold on to, and a supporting portion 200 supported below the supporting portion 205; it also includes a first connecting rod 5, and both ends of the first connecting rod 5 are configured with "T"-shaped connecting heads 501; a connecting groove 210 is configured on the supporting portion 200, and the connecting head 501 can be assembled in the connecting groove 210, so that the first connecting rod 5 connects the two auxiliary walking devices 2 into one.

As shown in FIG4 and FIG5 , in order to reduce the possibility of the first connecting rod 5 falling off, the upper half of the support portion 200 is curved, and the connecting groove 210 is provided on the side wall of the supporting portion 200 on the outer side of the arc that is inclined upward. The two connecting grooves 210 for assembling the first connecting rod 5 are arranged on the side wall above the inclined surface, so that the first connecting rod 5 can be well connected between the two auxiliary walking devices 2 due to gravity.

As shown in FIG. 4 in combination with FIG. 5 and FIG. 6 , the split-type walking aid device adapted for the wheelchair further includes a second connecting rod 6 disposed between the two walking aid devices 2; one end of the second connecting rod 6 is hinged to one of the two supporting parts 200, and the other end of the second connecting rod 6 is a "T"-shaped sliding end 602, which can slide into a transfer groove 221 provided on the other of the two supporting parts 200. At the same time, the second connecting rod 6 is connected between the two walking aid devices 2, so that the overall firmness of the walking aid device can be improved, thereby improving its performance.

It should be noted that the side edges of the "T" ends of the connector 501 and the sliding end 602 may be provided with arc chamfers to facilitate assembly and avoid possible scratches on the human body.

In order to facilitate the connection and assembly operation of the second connecting rod 6 and effectively reduce the possibility of the sliding end 602 coming out, as shown in FIG6 , a positioning pin 603 is provided between the transfer groove 221 and the sliding end 602. Obviously, the positioning pin 603 can be provided on the sliding end 602, and the corresponding positioning groove can be provided on the inner wall of the transfer groove 221, and the positions of the two can also be interchanged.

In addition, in order to facilitate storage when the second connecting rod 6 is not in use, as shown in Figure 3 and in combination with Figure 6, a foot beam 201 is provided at the lower portion of the support portion 200, and a storage groove 220 is provided on the foot beam 201 located on the same side as the rotating end 601 of the second connecting rod 6, and the second connecting rod 6 can be rotatably stored in the storage groove 220.

In order to solve the problem that the width of the wheelchair body 1 is inconsistent with the width of the split-type walking aid device adapted to the wheelchair when in use, a telescopic portion is provided for the first connecting rod 5 and the second connecting rod 6, so that when the walking aid device is mounted on the wheelchair body 1, its supporting portion 205 can be used as the supporting portion of the wheelchair body 1; when the device needs to be removed for walking assistance, the first connecting rod 5 can be first assembled on the wheelchair body 1, and the second connecting rod 6 can be assembled after the device is removed, and then the width of the device can be adjusted according to the width of use, so as to make the use effect of the device better. The middle part of the first connecting rod 5 and the second connecting rod 6 are both provided with a telescopic portion, which can constitute the adjustment of the width of the split-type walking aid device adapted to the wheelchair.

Specifically, as shown in Fig. 5 and Fig. 6, the telescopic part includes a telescopic rod 701, a telescopic rod piston 702 arranged on the telescopic rod 701, a telescopic cavity 704 sleeved outside the telescopic rod 701 and the telescopic rod piston 702, and a telescopic rod receiving body 705 sleeved on the free end of the telescopic rod 701 and connected to the telescopic cavity 704; a sliding cavity is formed inside the telescopic cavity 704, and the sliding cavity is filled with liquid, and a conducting hole 703 is opened on the telescopic rod piston 702; when the telescopic rod 701 is telescoped in the telescopic cavity 704, the liquid on both sides of the telescopic rod piston 702 flows through the conducting hole 703. The use of a liquid damping telescopic structure can make the width adjustment of the device have better operational performance.

As shown in Fig. 6, the second connecting rod 6 is hinged to the supporting part 200 of the auxiliary walking device 2 through the connecting rod rotating shaft 600, and the free end of the telescopic part, that is, the end on the right side in the figure, is inserted into the telescopic rod receiving body 705, and a sealing ring 7050 is provided between the two to prevent the liquid in the telescopic cavity 704 from overflowing to the telescopic rod receiving body 705. The above-mentioned liquid can be hydraulic oil, lubricating oil, etc.

In order to form a certain degree of positioning lock at different telescopic positions of the telescopic part, so as to make the width adjustment performance of the device better, a plurality of telescopic positioning pins 7011 are arranged between the free end of the telescopic rod 701 and the inner wall of the telescopic rod receiving body 705, and each telescopic positioning pin 7011 is evenly spaced along the telescopic direction of the telescopic part. Similarly, the telescopic positioning pin 7011 can be arranged on the telescopic rod 701, and each positioning groove 7051 corresponding to the telescopic positioning pin 7011 can be arranged on the inner wall of the telescopic rod receiving body 705. Of course, the positions of the two can also be interchanged.

The structures of the first assembly portion 4 and the second assembly portion 3 are described in detail as follows.

As shown in Figure 7 in combination with Figures 8 and 9, the first assembly part 4 includes a positioning part 402 constructed on the frame 100, and a positioning matching part 414 constructed on the support part 200; the positioning matching part 414 can be designed in the form of a positioning groove, a trigger pin 420 is provided at the bottom of the positioning groove, and a locking mechanism is provided in the support part 200; when the positioning part 402 enters the positioning matching part 414, the trigger pin 420 can be pressed to trigger the locking mechanism to lock the positioning part 402 in the positioning matching part 414; and an operating device for releasing the lock is provided on the auxiliary walking device 2.

In order to facilitate the assembly, introduction and positioning of the auxiliary walking device 2 on the wheelchair body 1, thereby further improving the convenience of the assembly operation of the auxiliary walking device 2 on the wheelchair body 1, one of the positioning part 402 and the positioning matching part 414 can be a magnet, and the other can be steel or iron; when the positioning part 402 is close to the positioning matching part 414, the positioning part 402 can be sucked into the positioning matching part 414 due to the magnetic force.

The shapes of the positioning portion 402 and the positioning matching portion 414 are matched with each other, and there are many optional forms of the shapes of the two, as long as the positioning portion 402 can smoothly slide into the positioning matching portion 414. Preferably, in this embodiment, the positioning portion 402 is in the shape of a section of a cone, that is, its side surface is a conical surface.

In order to achieve good locking of the wheelchair body 1 and the auxiliary walking device 2, as a preferred form, the positioning part 402 is constructed on the bonding platform 401 of the frame 100, and a neck groove 4020 is constructed at the connection part between the positioning part 402 and the bonding platform 401; the locking mechanism includes a claw 411 that can be clamped in the neck groove 4020, and a supporting plate 430 acting on the claw 411; the claw 411 is hinged on the support part 200, and can be separated from the neck groove 4020 due to the support of the supporting plate 430; the triggered trigger pin 420 can transmit the action on the supporting plate 430, which can constitute the elimination of the support, and the claw 411 is clamped into the neck groove 4020 due to the action of the claw tension spring 413. By setting a neck groove 4020 on the positioning part 402, the wheelchair body 1 and the auxiliary walking device 2 are clamped and connected through the claw 411 located on the auxiliary walking device 2, and the claw 411 can be in a standby state by supporting the supporting plate 430. When the trigger pin 420 is pressed and triggered, the locking mechanism can be automatically locked. The structure is simple and ingenious, and has good technical feasibility.

Specifically, as shown in FIG8 and FIG9, when the auxiliary walking device 2 approaches the assembly position on the wheelchair body 1, the positioning portion 402 is first sucked into the positioning matching portion 414 due to the magnetic force, and the trigger pin 420 in the standby state protrudes out of the bottom surface of the positioning matching portion 414 under the action of the spring seat 433. At this time, it is pressed by the positioning portion 402 and retracted into the first assembly seat 410, thereby driving the trigger plate 421 to rotate around the trigger plate shaft 422. The other end of the trigger plate shaft 422 drives the support plate 430 to rotate around the support plate shaft 431, and drives the support block 432 integrally connected to the support plate 430 to move below the claw 411. When the supporting block 432, which was originally in the position of supporting the claw 411, leaves the supporting position, the claw 411 rotates under the tension of the claw tension spring 413, so that the semicircular fork-shaped end of the claw 411 is inserted into the neck groove 4020 of the positioning portion 402, thereby locking the auxiliary walking device 2 on the wheelchair body 1.

It should be noted that the above-mentioned locking structure is only an example, and other locking structures may also be used under the design principles of the present invention.

In order to further strengthen the assembly firmness of the auxiliary walking device 2 on the wheelchair body 1, the disassembly and assembly structure between the auxiliary walking device and the wheelchair body of this embodiment is also provided with a second assembly part 3, as shown in Figures 3 and 8, the second assembly part 3 includes a fixed hook 301 constructed on the frame 100, and a movable hook 311 constructed on the support part 200; the movable hook 311 is hinged on the support part 200 and is equipped with a tension spring 3112; the tension spring 3112 constitutes the pre-tightening force of the movable hook 311 and the fixed hook 301. Specifically, a second assembly seat 310 is constructed on the support part 200, and the movable hook 311 is arranged in the second assembly seat 310, and is hinged in the hollow cavity of the support part 200 through a movable hook shaft 3110 fixedly connected thereto; in addition, a connecting plate 3111 is connected to the left end of the movable hook shaft 3110 to facilitate the operation of rotating the movable hook 311 to disengage the hook. Obviously, when the auxiliary walking device 2 needs to be removed, the movable hook 311 can be operated to be disengaged. For the convenience of operation, a separate operating device can be provided or the same operating device can be shared with the claw 411.

In order to provide good conditions for the functional expansion of the wheelchair body 1 or the auxiliary walking device 2, as shown in FIG2 and FIG8, the second assembly part 3 also includes a connecting part 302 arranged above the fixed hook 301, and a connecting matching part 312 arranged above the movable hook 311 corresponding to the connecting part 302; a plurality of metal elastic protrusions 303 insulated from the frame 100 are arranged on the connecting part 302, and metal connecting points 313 insulated from the supporting part 200 and corresponding to the number of the elastic protrusions 303 are constructed on the connecting matching part 312; when the auxiliary walking device 2 is assembled on the wheelchair body 1, the elastic protrusions 303 and the connecting points 313 can constitute electrical connection between the auxiliary walking device 2 and the wheelchair body 1. The electrical connection mechanism is arranged between the wheelchair body 1 and the auxiliary walking device 2, which can constitute the circuit connection between the two when the assembly is completed, and facilitate the arrangement of electrical components, intelligent equipment, etc. on the wheelchair body 1 and the auxiliary walking device 2.

There are many options for the above-mentioned operating device; however, due to the arrangement of the roller 208 on the auxiliary walking device 2, the auxiliary walking device 2 is generally equipped with an operating rod 206, which is generally arranged below the supporting portion 205, hinged to the supporting portion 205 through a rotating shaft, and equipped with a pull wire 207 to brake each roller 208. Based on the arrangement of the pull wire 207, in this embodiment, the operating device is implemented using the operating rod 206 and the pull wire 207. As shown in FIG8 , the left end of the claw 411 is connected to the pull wire 207, and the end of the connecting plate 3111 is simultaneously connected to the pull wire 207; when the operating rod 206 is operated, the second assembly portion 3 and the first assembly portion 4 can be unlocked at the same time. By using the pull wire 207 as the operating connection piece, the claw 411 and the movable hook 311 can be operated at the same time. By controlling the operating lever 206, the connection locks between the second assembly part 3 and the first assembly part 4 can be released synchronously, making the disassembly between the auxiliary walking device 2 and the wheelchair body 1 very convenient.

Regarding the relative positions of the second assembly portion 3 and the first assembly portion 4 , on the same auxiliary walking device 2 , the two can be arranged separately and at an interval. Preferably, the second assembly portion 3 is arranged above the first assembly portion 4 .

Based on the connection between the second assembly part 3 and the first assembly part 4, the auxiliary walking device 2 can be firmly assembled on the wheelchair body 1. At the same time, as shown in FIG. 1 and in combination with FIG. 2 and FIG. 3, the support part 200 and the first assembly seat 410 arranged thereon form a right angle, which can be tightly fitted on the fitting platform 401 of the frame 100, thereby limiting the left and right swing of the auxiliary walking device 2 on the wheelchair body 1. If you want to further improve the assembly firmness of the auxiliary walking device 2 on the wheelchair body 1, you can also increase the number of the second assembly part 3 and/or the first assembly part 4 to form a fixed connection of three points or more.

It should be noted that after the auxiliary walking device 2 is installed on the wheelchair body 1 through the second assembly part 3 and the first assembly part 4, a certain gap should be maintained between the bottom of the auxiliary walking device 2 and the ground, so that when the wheelchair is moving, turning or moving backward, the bottom of the auxiliary walking device 2 will not rub against the ground. When the bottom of the auxiliary walking device 2 is equipped with universal wheels, the contact with the ground will not hinder the movement of the wheelchair; when the bottom of the auxiliary walking device 2 does not have rollers 208, after it is installed on the wheelchair body 1, if its bottom contacts the ground, it will affect the normal movement of the wheelchair.

Therefore, when the auxiliary walking device 2 supported on the ground in use is close to the wheelchair body 1, the second assembly portion 3 and the first assembly portion 4 located on the wheelchair body 1 should be slightly higher than the portion located on the auxiliary walking device 2; for example, the positioning portion 402 on the wheelchair body 1 should be slightly higher than the positioning matching portion 414 on the auxiliary walking device 2. By gently lifting the auxiliary walking device 2 with both hands, the positioning portion 402 and the positioning matching portion 414 can be aligned, thereby completing the suction locking of the first assembly portion 4, and then completing the hooking and fixing of the second assembly portion 3.

The disassembly and assembly structure between the auxiliary walking device and the wheelchair body described in this embodiment, through the arrangement of the positioning portion 402 and the positioning matching portion 414, can facilitate the introduction and positioning of the auxiliary walking device 2 during the assembly to the wheelchair body 1. A locking mechanism and an operating device are arranged on the auxiliary walking device 2 to facilitate the locking and disassembly of the auxiliary walking device 2 on the wheelchair body 1, thereby improving the convenience of the disassembly and assembly operation of the auxiliary walking device 2 on the wheelchair body 1, making the wheelchair integrated with the auxiliary walking device more suitable for users of the wheelchair body 1 with poor operating ability.

Embodiment 2

The present embodiment relates to a wheelchair integrated with an auxiliary walking device, which comprises a wheelchair body 1 and an auxiliary walking device 2 which can be detachably mounted on the wheelchair body 1. Meanwhile, between the wheelchair body 1 and the auxiliary walking device 2, a disassembly and assembly structure between the auxiliary walking device and the wheelchair body as described in the first embodiment is adopted.

As shown in FIG. 1 and FIG. 4 of the first embodiment, the auxiliary walking device 2 has two symmetrically arranged supporting parts 205. When the auxiliary walking device 2 is mounted on the wheelchair body 1, the two supporting parts 205 are respectively placed on both sides of the upper part of the wheelchair body 1, and can support the two arms of the person sitting on the wheelchair body 1. The two supporting parts 205 used for the auxiliary walking device 2 to assist walking are exactly located at the supporting part position of the wheelchair body 1 when the auxiliary walking device 2 is mounted on the wheelchair body 1, thereby realizing the dual purpose of the auxiliary walking device 2. This makes the design of the wheelchair integrated with the auxiliary walking device more scientific and the performance better.

In addition, as shown in FIG1 and in combination with FIG10, the wheelchair integrated with the auxiliary walking device is equipped with good basic conditions for the expansion of its functions. For example, a monitoring device 8 can be installed on the supporting portion 205 of the auxiliary walking device 2, so as to realize remote monitoring of the user of the auxiliary walking device 2, such as position positioning, tipping alarm, video and audio information collection, etc. At the same time, a battery can be set on the wheelchair body 1. When the wheelchair is an electric wheelchair, the power battery of the wheelchair body 1 can be directly used; through the elastic protrusion 303 and the connection point 313 between the wheelchair body 1 and the auxiliary walking device 2, the monitoring device 8 can be powered and charged, and the line communication between the detection device on the wheelchair body 1 and the monitoring device 8 can be realized.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims (6)

1. A disassembly and assembly structure between an auxiliary walking device and a wheelchair body, characterized by comprising: A first assembly portion (4) is arranged between the frame (100) of the wheelchair body (1) and the auxiliary walking device (2), comprising a positioning portion (402) constructed on the frame (100) and a positioning matching portion (414) constructed on the auxiliary walking device (2), wherein a locking mechanism is arranged in the positioning matching portion (414) and can be triggered by the entry of the positioning portion (402) to lock the positioning portion (402) in the positioning matching portion (414); and an operating device is arranged on the auxiliary walking device (2) to unlock the locking mechanism; The positioning portion (402) and the positioning matching portion (414) are provided with magnetic materials; when the positioning portion (402) is close to the positioning matching portion (414), the positioning portion (402) can be adsorbed into the positioning matching portion (414) due to magnetic force; The positioning matching portion (414) is a positioning groove constructed on the support portion (200) of the auxiliary walking device (2), and a trigger pin (420) is arranged at the bottom of the positioning groove, which can trigger the locking mechanism due to the pressing of the positioning portion (402); the positioning portion (402) is a protrusion constructed on the bonding platform (401) of the frame (100), and a neck groove (4020) is constructed at the connection portion between the positioning portion (402) and the bonding platform (401); the locking mechanism has a claw (411) that can be clamped in the neck groove (4020); The invention also comprises a second assembly part (3); the second assembly part (3) comprises a fixed hook (301) constructed on the frame (100) and a movable hook (311) constructed on the auxiliary walking device (2); the movable hook (311) is hinged to the auxiliary walking device (2) and is equipped with a tension spring (3112); the tension spring (3112) constitutes a pre-tightening force for the movable hook (311) to be hooked with the fixed hook (301); The operating device comprises a pull wire (207) connected to the locking mechanism and the movable hook (311), and an operating rod (206) capable of pulling the pull wire (207). 2. The disassembly and assembly structure between the auxiliary walking device and the wheelchair body according to claim 1 is characterized in that: the positioning part (402) is arranged at the front or both sides of the wheelchair body (1), and the outer shape of the positioning part (402) is a shrinking shape with a gradually smaller size from the neck groove (4020) to the end of the positioning part (402). 3. The disassembly and assembly structure between the auxiliary walking device and the wheelchair body according to claim 1 is characterized in that: the second assembly part (3) also includes a connecting part (302) arranged above the fixed hook (301), and a connecting matching part (312) corresponding to the connecting part (302) and arranged above the movable hook (311); a plurality of metal elastic protrusions (303) insulated from the frame (100) are arranged on the connecting part (302), and metal connecting points (313) insulated from the connecting matching part (312) and corresponding to the number of the elastic protrusions (303) are constructed on the connecting matching part (312); when the auxiliary walking device (2) is assembled on the wheelchair body (1), the elastic protrusions (303) and the connecting points (313) can constitute electrical connection between the auxiliary walking device (2) and the wheelchair body (1). 4. The disassembly and assembly structure between the auxiliary walking device and the wheelchair body according to any one of claims 1 to 3, characterized in that the second assembly part (3) is arranged above the first assembly part (4). 5. A wheelchair, comprising a wheelchair body (1) and an auxiliary walking device (2) that can be detachably mounted on the wheelchair body (1), characterized in that the detachable structure between the auxiliary walking device and the wheelchair body as described in any one of claims 1 to 4 is adopted between the wheelchair body (1) and the auxiliary walking device (2). 6. The wheelchair according to claim 5 is characterized in that: the auxiliary walking device (2) has two supporting parts (205) that can be symmetrically arranged on the left and right sides of the wheelchair body (1); when the auxiliary walking device (2) is assembled on the wheelchair body (1), the two supporting parts (205) can constitute support for the arms of a person sitting on the wheelchair body (1).