Freely separated and spliced side-by-side double child-mother wheelchair

Abstract

The invention belongs to the technical field of wheelchairs, and provides a freely separated and spliced side-by-side double child-mother wheelchair which comprises a splice plate and a free clamping structure, the splice plate is arranged between the child-mother wheelchair and comprises a main plate and an auxiliary plate, the main plate and the auxiliary plate are arranged on wheelchair frames of the mother wheelchair and the child wheelchair respectively, and the free clamping structure is arranged between the main plate and the auxiliary plate. Hook arms are arranged on the opposite faces of the main plate and the auxiliary plate, the head ends of the hook arms are perpendicularly in butt joint with the main plate or the auxiliary plate, the tail ends of the hook arms extend in the direction parallel to the main plate or the auxiliary plate, inserting openings are reserved between the extending sections of the hook arms and the main plate or the auxiliary plate, and the hook arms are divided into main hook arms and auxiliary hook arms corresponding to the main plate and the auxiliary plate. And the tail ends of the main hook arm and the auxiliary hook arm face opposite directions. According to the invention, two persons can walk together side by side, the two persons are matched to manually and reasonably control the longitudinal running of the primary and secondary wheelchairs, so that the primary and secondary wheelchairs can be randomly separated and spliced together, the flexibility is high, the operation space is large, and better driving experience can be brought to users, especially young groups.

Description

Technical Field

[0001] The invention belongs to the technical field of wheelchairs, and in particular relates to a freely separable and splicable side-by-side double-child wheelchair. Background Art

[0002] The wheelchair is an important tool for rehabilitation. It is not only a means of transportation for the physically disabled, but more importantly, it enables them to exercise and participate in social activities with the help of a wheelchair.

[0003] At present, most traditional double wheelchairs are arranged one in front and one in the back, that is, the front wheelchair drives the rear wheelchair, and the two are connected by some conventional rigid or flexible connectors. Although this method can meet the purpose of two users traveling together, during the driving process, the interaction and communication between the two people in the front and rear wheelchairs is not convenient enough. Moreover, the users are not limited to elderly partners, but may also be young friends, patients or relatives of the same group, etc. In this regard, the travel mode of the traditional double wheelchair seems too monotonous and boring, and the use effect is not good.

[0004] Therefore, it is necessary to provide an improved technical solution to address the above-mentioned deficiencies in the prior art. Summary of the invention

[0005] The purpose of the present invention is to overcome the problem that the travel mode of a traditional double wheelchair is too monotonous and boring, and to provide a side-by-side double-child wheelchair that can be separated and spliced ​​freely.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] A freely separable and splicable side-by-side double-child wheelchair, comprising: a splicing plate and a free clamping structure, wherein the splicing plate is arranged between the mother-child wheelchair, and the splicing plate comprises: a main plate and a sub-plate, wherein the main plate and the sub-plate are respectively arranged on the wheelchair frames of the mother wheelchair and the child wheelchair, and hook arms are arranged on opposite sides of the main plate and the sub-plate, and the head end of the hook arm is vertically connected to the main plate or the sub-plate, and the end of the hook arm is extended in a direction parallel to the main plate or the sub-plate, and the extended section of the hook arm is connected to the main plate or the sub-plate. A socket is reserved between the auxiliary plates, and the hook arm is divided into a main hook arm and an auxiliary hook arm corresponding to the main plate and the auxiliary plate. The ends of the main hook arm and the auxiliary hook arm face oppositely, so that when the mother-and-child wheelchair travels longitudinally relative to each other, the main hook arm is inserted into the socket between the auxiliary hook arm and the auxiliary plate, and the auxiliary hook arm is inserted into the socket between the main hook arm and the main plate; the free clamping structure is arranged between the extension sections of the main hook arm and the auxiliary hook arm, and the connection and separation of the main hook arm and the auxiliary hook arm are controlled by the free clamping structure.

[0008] In the freely separable and splicable side-by-side double-child wheelchair as described above, preferably, a receiving cavity and a transmission cavity are provided inside the extension section of the main hook arm;

[0009] The free clamping structure comprises: a clamping arm and a transmission arm, wherein the clamping arm is composed of a clamping column, a clamping head and a gear, the clamping column is horizontally placed in the accommodating cavity, and the clamping head and the gear are respectively arranged at two ends of the clamping column.

[0010] Preferably, one end of the clamping column extends into the transmission cavity and docks with the middle part of the gear, and the other end docks with the middle part of the rear end of the clamping head.

[0011] Preferably, the front end of the clamp head is exposed outside the accommodating cavity, and the front end surface of the clamp head is an inclined surface;

[0012] A positioning hole corresponding to and fitting with the front end of the clamping head is provided on the inner side of the extending end of the auxiliary hook arm.

[0013] Preferably, the clamp head and the clamp column are both cylindrical;

[0014] The accommodating cavity is matched with the clamping head.

[0015] Preferably, a circular spring is sleeved on the outside of the clamping column;

[0016] The circular spring is completely located in the accommodating cavity.

[0017] Preferably, the diameter of the gear is larger than the diameter of the clamping column.

[0018] Preferably, the transmission arm is arranged vertically;

[0019] The main board is provided with an extension plate toward the sub-board, so that the upper end of the transmission arm passes through the extension plate;

[0020] The lower end of the transmission arm passes through the main hook arm, and the transmission arm passes through the transmission cavity.

[0021] Preferably, a rack is provided on one side of the transmission arm, so that the portion of the transmission arm located inside the transmission cavity is meshed and connected with the gear, and the gear is driven to rotate by the up and down displacement of the transmission arm;

[0022] A limit plate is convexly provided on the other side of the transmission arm, and the upper plate surface of the limit plate abuts against the top of the transmission cavity. A rectangular spring is provided below the limit plate, and the top of the rectangular spring abuts against the lower plate surface of the limit plate, and the bottom of the rectangular spring abuts against the bottom of the transmission cavity.

[0023] Preferably, a vertical frame is provided on the top of the extension plate;

[0024] The upper end of the transmission arm is located in the frame opening of the vertical frame, and the height of the upper end of the transmission arm does not exceed the vertical frame.

[0025] Beneficial effect: The present invention can enable two people to walk side by side, and through the cooperation of two people, the parent-child wheelchair can be manually and reasonably controlled to travel longitudinally, and can be separated and spliced ​​together at will. It has strong flexibility and large operating space, and can bring better driving experience to users, especially young groups. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The drawings constituting a part of the present application 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 and do not constitute an improper limitation of the present invention. Among them:

[0027] Figure 1 It is an overall schematic diagram of the present invention;

[0028] Figure 2 for Figure 1 Schematic diagram from top view;

[0029] Figure 3 It is an overall schematic diagram of the structure of the mother wheelchair of the present invention;

[0030] Figure 4 It is an overall schematic diagram of the structure of the wheelchair of the present invention;

[0031] Figure 5 It is a side view schematic diagram of the structure of the mother wheelchair of the present invention;

[0032] Figure 6 for Figure 5 The enlarged schematic diagram at A in the middle;

[0033] Figure 7 It is an overall schematic diagram of the auxiliary hook arm structure of the present invention;

[0034] Figure 8 It is a cross-sectional view of the main hook arm structure of the present invention;

[0035] Fig. 9 for Figure 8 Enlarged schematic diagram of point B in the middle.

[0036] In the figure: 1. main board; 2. auxiliary board; 3. mother wheelchair; 4. child wheelchair; 5. main hook arm; 6. auxiliary hook arm; 7. accommodating chamber; 8. transmission chamber; 9. clamping column; 10. clamping head; 11. gear; 12. positioning hole; 13. circular spring; 14. extension plate; 15. limit plate; 16. rectangular spring; 17. vertical frame; 18. transmission arm. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the present invention.

[0038] In the description of the present invention, the terms "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and do not require that the present invention must be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on the present invention. The terms "connected" and "connected" used in the present invention should be understood in a broad sense. For example, they can be fixed connections or detachable connections; they can be directly connected or indirectly connected through intermediate components. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0039] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments. It should be noted that the embodiments and features in the embodiments of the present invention can be combined with each other without conflict.

[0040] Embodiment, this embodiment aims to provide a side-by-side double-child wheelchair that can be freely separated and spliced, and its main function is that the longitudinal movement of the double-child wheelchair can be manually and reasonably controlled by two people cooperating to separate and splice it together at will.

[0041] Reference Figure 1-4 , including: a splicing plate and a free card connection structure, the splicing plate is arranged between the mother-child wheelchair 3, the child wheelchair 4 is located on the right, and the mother wheelchair 3 is located on the left. The mother-child wheelchair 3 is electric or non-electric. The splicing plate includes: a main board 1 and a sub-board 2. The main board 1 and the sub-board 2 are both semicircular wheel covers, which are fixed on the wheelchair frames of the mother wheelchair 3 and the child wheelchair 4 in an inclined state; an L-shaped hook arm is provided on the opposite side of the main board 1 and the sub-board 2, the head end of the hook arm is vertically connected to the main board 1 or the sub-board 2, and the end of the hook arm is extended in a direction parallel to the main board 1 or the sub-board 2, and a socket is reserved between the extended section of the hook arm and the main board 1 or the sub-board 2, and the socket is matched with the extended section of the hook arm.

[0042] Reference Figure 3 and Figure 4The hook arms are divided into a main hook arm 5 and a secondary hook arm 6 corresponding to the main board 1 and the secondary board 2, and the main hook arm 5 is at the same height as the secondary hook arm 6, and the ends of the main hook arm 5 and the secondary hook arm 6 are facing oppositely, the end of the main hook arm 5 faces backward, and the end of the secondary hook arm 6 faces forward, so that when the mother-and-child wheelchair 3 moves longitudinally relative to each other, the main hook arm 5 is inserted into the socket between the secondary hook arm 6 and the secondary board 2, and the secondary hook arm 6 is inserted into the socket between the main hook arm 5 and the main board 1, thereby preliminarily splicing the mother-and-child wheelchair 3 side by side.

[0043] Reference Figure 5-9 The free clamping structure is arranged between the extension section of the main hook arm 5 and the auxiliary hook arm 6, and the connection and separation of the main hook arm 5 and the auxiliary hook arm 6 are controlled by the free clamping structure. Specifically, a receiving chamber 7 and a transmission chamber 8 are arranged inside the extension section of the main hook arm 5. The free clamping structure includes: a clamping arm and a transmission arm 18. The clamping arm is composed of a clamping column 9, a clamping head 10 and a gear 11. The clamping column 9 is horizontally placed in the receiving chamber 7. The clamping head 10 and the gear 11 are respectively fixed at both ends of the clamping column 9. A through hole that matches the clamping column 9 is arranged between the receiving chamber 7 and the transmission chamber 8. One end of the clamping column 9 passes through the through hole and extends into the transmission chamber 8 and is fixedly connected to the middle part of the gear 11. The other end of the clamping column 9 It is fixedly docked with the middle part of the rear end of the clamping head 10, the front end of the clamping head 10 is exposed in the accommodating cavity 7, and the front end surface of the clamping head 10 is an inclined surface, and the inner side of the extended end of the auxiliary hook arm 6 is provided with a positioning hole 12 corresponding to and fitting with the front end of the clamping head 10, wherein the clamping head 10 and the clamping column 9 are both cylindrical to avoid limiting the overall rotation of the clamping arm, and the accommodating cavity 7 fits with the clamping head 10, so that the clamping head 10 can stably rotate and slide in the accommodating cavity 7, and the outside of the clamping column 9 is provided with a circular spring 13, which is completely in the accommodating cavity 7, and when the front end inclined surface of the clamping head 10 is pressurized, it will automatically retract into the accommodating cavity 7, and the circular spring 13 will also be pressurized.

[0044] The transmission arm 18 is arranged vertically, so that the upper end of the transmission arm 18 passes through the extension plate 14. The main board 1 is provided with an extension plate 14 toward the sub-board 2, and the lower end of the transmission arm 18 passes through the main hook arm 5, and the transmission arm 18 passes through the transmission cavity 8. A rack is provided on the side of the transmission arm 18 facing the gear 11, so that the part of the transmission arm 18 inside the transmission cavity 8 is meshed and connected with the gear 11, and the gear 11 can be driven to rotate by the up and down displacement of the transmission arm 18. The rotation of the gear 11 can change the direction of the front inclined surface of the chuck 10. The front of the chuck 10 in the initial state The direction of the end bevel is consistent with the direction of the end of the main hook arm 5; a limit plate 15 is laterally protruded from the other side of the transmission arm 18, and the end of the limit plate 15 is against the side wall of the transmission cavity 8. A rectangular spring 16 is provided below the limit plate 15, and the top of the rectangular spring 16 is against the lower plate surface of the limit plate 15, and the bottom of the rectangular spring 16 is against the bottom of the transmission cavity 8. The limit plate 15 is pushed up by the rectangular spring 16, so that the upper plate surface of the limit plate 15 is against the cavity top of the transmission cavity 8. No matter how the transmission arm 18 moves up and down, the rectangular spring 16 can be used to reset it.

[0045] In this embodiment, the diameter of the gear 11 must be larger than the diameter of the post 9 to prevent the post 9 from interfering with the transmission arm 18 when the gear 11 moves in the transmission cavity 8 in the opposite direction of the post 9 .

[0046] In this embodiment, a vertical frame 17 is provided on the top of the extension plate 14, and the upper end of the transmission arm 18 is located in the frame opening of the vertical frame 17, and the upper end height of the transmission arm 18 does not exceed the vertical frame 17. The vertical frame 17 can prevent external force from accidentally touching the upper end of the transmission arm 18.

[0047] When in use, if you want to splice the mother-child wheelchair 3 together, it is best to ensure that the mother wheelchair 3 is stationary first. If splicing is performed in a parallel state, the speed of the mother wheelchair 3 must be reduced to ensure that the child wheelchair 4 can catch up. Assuming that the mother wheelchair 3 is stationary, at this time, the mother wheelchair 3 must be located in front of the child wheelchair 4, and the user of the child wheelchair 4 controls it to move longitudinally toward the mother wheelchair 3. Through the user's reasonable control, the extension section of the auxiliary hook arm 6 on the child wheelchair 4 is fully extended into the socket reserved between the main hook arm 5 and the main board 1. During this period, the front end of the clamping head 10 will be squeezed into the accommodating cavity 7, and the gear 11 will also move laterally along the rack on the transmission arm 18. It should be noted that the width of the transmission arm 18 is much larger than the thickness of the gear 11, ensuring that the gear 11 has a certain amount of space to move backward in the transmission cavity 8. When the positioning hole 12 on the auxiliary hook arm 6 corresponds to the clamping head 10, the clamping head 10 The front end will be ejected from the accommodating cavity 7 and enter the positioning hole 12 under the action of the circular spring 13, thereby completing the parallel splicing of the mother-child wheelchair 3. Only one person is needed to control the synchronous travel of the mother-child wheelchair 3. The gear 11 plays a limiting role in this process, that is, it limits the distance that the front end of the clamping head 10 extends out of the accommodating cavity 7. When the mother-child wheelchair 3 needs to be separated, one of them presses the upper end of the transmission arm 18 with the index finger or middle finger. Specifically, the transmission arm 18 is pressed downward to drive the gear 11 to rotate clockwise, thereby causing the clamping head 10 to rotate half a circle, so as to adjust the inclined surface of the front end of the clamping head 10 to be consistent with the end of the auxiliary hook arm 6. At this time, it is only necessary for the mother wheelchair 3 to accelerate forward. To ensure safety, the child wheelchair 4 can be braked. After the mother-child wheelchair 3 is separated, release the finger pressing the transmission arm 18, and the transmission arm 18 will be reset under the action of the rectangular spring 16.

[0048] The mother-and-child wheelchair 3 provided in this embodiment can enable two people to walk side by side, and the mother-and-child wheelchair 3 can be manually and reasonably controlled to travel longitudinally through the cooperation of two people, and can be separated and spliced ​​together at will, with strong flexibility and large operating space, which can bring a better driving experience to users, especially young groups.

[0049] It should be understood that the above description is merely exemplary and the embodiments of the present application do not limit this.

[0050] 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 are within the scope of protection of the pending claims of the present invention.

Claims

1. A freely separable and splicable side-by-side double-child wheelchair, characterized in that: include: A splicing plate, arranged between a mother-and-child wheelchair, the splicing plate comprises: a main plate and a sub-plate, the main plate and the sub-plate are respectively arranged on the wheelchair frames of the mother wheelchair and the child wheelchair, hook arms are arranged on opposite sides of the main plate and the sub-plate, the head end of the hook arm is vertically connected to the main plate or the sub-plate, the end of the hook arm is extended in a direction parallel to the main plate or the sub-plate, and a socket is reserved between the extended section of the hook arm and the main plate or the sub-plate, the hook arm is divided into a main hook arm and a sub-hook arm corresponding to the main plate and the sub-plate, the ends of the main hook arm and the sub-hook arm face oppositely, so that when the mother-and-child wheelchair travels longitudinally relative to each other, the main hook arm is inserted into the socket between the sub-hook arm and the sub-plate, and the sub-hook arm is inserted into the socket between the main hook arm and the main plate; The free clamping structure is arranged between the extension sections of the main hook arm and the auxiliary hook arm, and the connection and separation of the main hook arm and the auxiliary hook arm are controlled by the free clamping structure.

2. A freely separable and splicable side-by-side double-child wheelchair according to claim 1, characterized in that: The extension section of the main hook arm is provided with a receiving chamber and a transmission chamber; The free clamping structure comprises: a clamping arm and a transmission arm, wherein the clamping arm is composed of a clamping column, a clamping head and a gear, the clamping column is horizontally placed in the accommodating cavity, and the clamping head and the gear are respectively arranged at two ends of the clamping column.

3. The freely separable and splicable side-by-side double-child wheelchair according to claim 2, characterized in that: One end of the clamping column extends into the transmission cavity and butts with the middle part of the gear, and the other end butts with the middle part of the rear end of the clamping head.

4. The freely separable and splicable side-by-side double-child wheelchair according to claim 3, characterized in that: The front end of the clamp head is exposed in the accommodating cavity, and the front end surface of the clamp head is an inclined surface; A positioning hole corresponding to and fitting with the front end of the clamping head is provided on the inner side of the extending end of the auxiliary hook arm.

5. The freely separable and splicable side-by-side double-child wheelchair according to claim 4, characterized in that: The clamp head and the clamp column are both cylindrical; The accommodating cavity is matched with the clamping head.

6. The freely separable and splicable side-by-side double-child wheelchair according to claim 5, characterized in that: The outside of the clamping column is sleeved with a circular spring; The circular spring is completely located in the accommodating cavity.

7. The freely separable and splicable side-by-side double-child wheelchair according to claim 3, characterized in that: The diameter of the gear is greater than the diameter of the clamping column.

8. The freely separable and splicable side-by-side double-child wheelchair according to claim 7, characterized in that: The transmission arm is arranged vertically; The main board is provided with an extension plate toward the sub-board, so that the upper end of the transmission arm passes through the extension plate; The lower end of the transmission arm passes through the main hook arm, and the transmission arm passes through the transmission cavity.

9. The freely separable and splicable side-by-side double-child wheelchair according to claim 8, characterized in that: A rack is provided on one side of the transmission arm, so that the part of the transmission arm inside the transmission cavity is meshed and connected with the gear, and the gear is driven to rotate by the up and down displacement of the transmission arm; A limit plate is convexly provided on the other side of the transmission arm, and the upper plate surface of the limit plate abuts against the top of the transmission cavity. A rectangular spring is provided below the limit plate, and the top of the rectangular spring abuts against the lower plate surface of the limit plate, and the bottom of the rectangular spring abuts against the bottom of the transmission cavity.

10. The freely separable and associable side-by-side double-child wheelchair according to claim 8, characterized in that: A vertical frame is provided on the top of the extension plate; The upper end of the transmission arm is located in the frame opening of the vertical frame, and the height of the upper end of the transmission arm does not exceed the vertical frame.

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