Supporting mechanism and four-wheel walking-aid cart

Abstract

The supporting mechanism comprises a first supporting rod and a connecting seat, the connecting seat is arranged on the first supporting rod and comprises a first connecting block and a second connecting block, the first connecting block is detachably connected to the second connecting block, and the second connecting block is detachably connected to the first supporting rod. A mounting hole for the first supporting rod to penetrate through is formed between the first connecting block and the second connecting block. Besides, the four-wheel walking-aid cart comprises a connecting rod and the supporting mechanisms, the number of the supporting mechanisms is two, the two supporting mechanisms are arranged in a spaced mode, and the two ends of the connecting rod are detachably connected to the two supporting mechanisms respectively. The supporting mechanism and the four-wheel walking-aid cart can be mounted and dismounted more conveniently, operation is more convenient, and the use experience feeling is better.

Description

Technical Field

[0001] The utility model relates to the technical field of shopping carts, in particular to a support mechanism and a four-wheel walking aid cart. Background Art

[0002] A walking aid cart is a device for assisting the elderly, the weak or the disabled with inconvenient movement to walk. The user can push the walking aid cart to walk, or sit on the walking aid cart to rest. The user can also place daily purchased items on the walking aid cart. Due to its characteristic of integrating multiple functions, it has been widely used in daily life.

[0003] At present, the connection between the support rods of the four-wheel walking aid cart is all welded and cannot be disassembled, which will occupy a large space during packaging, storage and transportation, indirectly increasing the production cost. In addition, the chair frame and related structures of the current four-wheel walking aid cart are mostly connected by welding. Welding connection is not convenient for later maintenance and replacement, and also causes the production to rely too much on professional welding workers, resulting in high production costs. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a support mechanism and a four-wheel walking aid cart, aiming to solve the problems of inconvenient later maintenance and replacement and high production cost caused by the use of welding connection in the support mechanism of the existing four-wheel walking aid cart.

[0005] To achieve the above purpose, the utility model adopts the following technical solutions:

[0006] In the first aspect, a support mechanism is provided, including:

[0007] A first support rod;

[0008] A connecting seat, the connecting seat is arranged on the first support rod, the connecting seat includes a first connecting block and a second connecting block, the first connecting block is detachably connected to the second connecting block, and an installation hole for the first support rod to pass through is formed between the first connecting block and the second connecting block.

[0009] Optionally, the support mechanism further includes a locking bolt, and the locking bolt is sequentially threadedly connected to the first connecting block and the second connecting block.

[0010] Optionally, the support mechanism further includes a limiting protrusion, the inner sides of the first connecting block and the second connecting block are both provided with the limiting protrusion, the first support rod (1) is provided with a limiting hole, and the limiting protrusion (3) is inserted into the limiting hole.

[0011] Optionally, the first connecting block is provided with a guiding groove, and the second connecting block is provided with a guiding protrusion adapted to the guiding groove.

[0012] Optionally, the first connection block is provided with an anti - detachment groove, and the second connection block is provided with an anti - detachment protrusion adapted to the anti - detachment groove.

[0013] Optionally, the support mechanism further includes a second support rod, and the second support rod is rotatably connected to the connection seat.

[0014] Optionally, the support mechanism further includes a first connecting rod and a second connecting rod. One end of the first connecting rod is rotatably connected to the first support rod, the other end of the first connecting rod is rotatably connected to one end of the second connecting rod, and the other end of the second connecting rod is rotatably connected to the second support rod.

[0015] In a second aspect, a four - wheel walking cart is provided, which includes a connecting rod and the above - mentioned support mechanism. The number of the support mechanisms is two, and the two support mechanisms are arranged at intervals. Both ends of the connecting rod are detachably connected to the two support mechanisms respectively.

[0016] Optionally, the four - wheel walking cart further includes a seat cushion, moving wheels and a handle. The seat cushion is arranged between the two support mechanisms, the seat cushion is detachably connected to the connecting rod, the moving wheels are connected to the bottom of the support mechanism, and the handle is connected to the top of the support mechanism.

[0017] Optionally, the four - wheel walking cart further includes a backrest cushion, and the backrest cushion is detachably connected to the connection seat.

[0018] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0019] 1. In the support mechanism provided by the present utility model, different from the existing installation method, that is, different from the existing method of fixing the support rod and the connection seat by welding, the connection seat provided by the present utility model adopts a separated design and is installed on the first support rod by the combination of the first connection block and the second connection block. It is spliced in a detachable way, which can be disassembled more conveniently, and the later maintenance and replacement are more convenient. Moreover, compared with welding, the present utility model adopts a splicing method for installation, which can reduce the occupied space during packaging, storage and transportation, indirectly reduce the production cost, and is also convenient for users to splice and more convenient to store.

[0020] 2. In the four - wheel walking cart provided by the present utility model, a detachable connection seat is adopted to connect the first support rod and the second support rod, and the support force - bearing effect is better. In addition, the connection seat is arranged at the connection of the first support rod and the hand - pushing tube, which can better adapt to the gap between the first support rod and the hand - pushing tube and can more conveniently adjust the position of the hand - pushing tube.

[0021] 3. In the four-wheel walking cart provided by the present utility model, the above-mentioned support mechanism is adopted for support, which can be more conveniently installed and disassembled, is more convenient to operate, and has a better use experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the following-described drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0023] Figure 1 is a schematic structural diagram of the four-wheel walking cart of the present utility model;

[0024] Figure 2 is a schematic structural diagram of the support mechanism and the connecting rod of the present utility model;

[0025] Figure 3 is an exploded schematic diagram of the support mechanism of the present utility model;

[0026] Figure 4 is a schematic structural diagram of the connecting seat of the support mechanism of the present utility model.

[0027] In the figure: 1, the first support rod; 2, the connecting seat; 21, the first connecting block; 22, the second connecting block; 23, the mounting hole; 24, the guiding groove; 25, the guiding protrusion; 26, the anti-disengagement groove; 27, the anti-disengagement protrusion; 3, the limiting protrusion; 4, the second support rod; 5, the first connecting rod; 6, the second connecting rod; 7, the connecting rod; 8, the seat cushion; 9, the moving wheel; 10, the handle; 11, the backrest cushion; 12, the buckle; 13, the storage bag. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model. Obviously, the described embodiments are only some of the embodiments of the present utility model, rather than all of them. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.

[0029] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0030] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features.

[0031] The following Figures 1 to 4 describes the support mechanism and four-wheel walking cart of the present utility model.

[0032] As Figures 1 to 4 shown, the present utility model provides a support mechanism, including a first support rod 1 and a connecting seat 2. The connecting seat 2 is provided on the first support rod 1. The connecting seat 2 includes a first connecting block 21 and a second connecting block 22. The first connecting block 21 is detachably connected to the second connecting block 22. An installation hole 23 for the first support rod 1 to pass through is formed between the first connecting block 21 and the second connecting block 22.

[0033] In the support mechanism provided in this embodiment, different from the existing installation method, that is, different from the existing method of fixing the support rod and the connecting seat 2 by welding, the connecting seat 2 provided by the present utility model adopts a separated design and is installed on the first support rod 1 by the combination of the first connecting block 21 and the second connecting block 22. It is spliced in a detachable manner, which can be disassembled more conveniently, and the later maintenance and replacement are more convenient. Moreover, compared with welding, the present utility model adopts a splicing method for installation, which can reduce the occupied space during packaging, storage and transportation, indirectly reduce the production cost, and is also convenient for users to splice and more convenient to store.

[0034] In some embodiments, the support mechanism further includes a locking bolt. The locking bolt is sequentially threadedly connected to the first connecting block 21 and the second connecting block 22. By fixing with the locking bolt, the first connecting block 21 and the second connecting block 22 can be firmly combined, the installation stability is stronger, and it is also convenient for disassembly and later maintenance and replacement.

[0035] In some embodiments, the support mechanism further includes a limiting protrusion 3. Limiting protrusions 3 are provided on the inner sides of the first connecting block 21 and the second connecting block 22 respectively. The first support rod 1 is provided with a limiting hole, and the limiting protrusion 3 is inserted into the limiting hole. By providing the limiting protrusion 3, the first connecting block 21 and the second connecting block 22 can be fixed to the first support rod 1, preventing the first support rod 1 from axially disengaging from the connecting seat 2, further improving the overall installation stability of the support mechanism and enhancing the safety during use.

[0036] More specifically, by using the limiting protrusion 3 for fixation, the connecting seat 2 can be fixed to the first support rod 1 without the need for adhesive, and it can be assembled in place at one time, making the installation more convenient.

[0037] In some embodiments, the first connecting block 21 is provided with a guiding groove 24, and the second connecting block 22 is provided with a guiding protrusion 25 adapted to the guiding groove 24. Specifically, the guiding groove 24 extends along the axial direction of the first support rod 1, and the guiding protrusion 25 can be slidably connected to the guiding groove 24 along the axial direction of the first support rod 1, making the installation more convenient.

[0038] In some embodiments, the first connecting block 21 is provided with an anti - detachment groove 26, and the second connecting block 22 is provided with an anti - detachment protrusion 27 adapted to the anti - detachment groove 26. Specifically, the anti - detachment groove 26 extends along the axial direction of the first support rod 1, and the anti - detachment protrusion 27 can be slidably connected to the anti - detachment groove 26 along the axial direction of the first support rod 1 but cannot radially disengage from the anti - detachment groove 26 along the first support rod 1. After installation, it can prevent the second connecting block 22 from radially disengaging from the first connecting block 21, making the overall installation structure more stable.

[0039] In some embodiments, the support mechanism further includes a second support rod 4, and the second support rod 4 is rotatably connected to the connecting seat 2. By providing the second support rod 4, the support stability of the entire support mechanism can be improved.

[0040] In some embodiments, the support mechanism further includes a first connecting rod 5 and a second connecting rod 6. One end of the first connecting rod 5 is rotatably connected to the first support rod 1, the other end of the first connecting rod 5 is rotatably connected to one end of the second connecting rod 6, and the other end of the second connecting rod 6 is rotatably connected to the second support rod 4. Specifically, by providing the first connecting rod 5 and the second connecting rod 6 between the first support rod 1 and the second support rod 4, the rotation angle between the first support rod 1 and the second support rod 4 can be limited, preventing unrestricted rotation between the first support rod 1 and the second support rod 4. At the same time, it is also convenient for storage and more convenient to operate.

[0041] The present utility model also provides a four - wheel walking cart, which includes a connecting rod 7 and the above - mentioned support mechanism. The number of the support mechanisms is two, and the two support mechanisms are arranged at intervals. The two ends of the connecting rod 7 are respectively detachably connected to the two support mechanisms.

[0042] In the four-wheel walking cart provided in this embodiment, the above-mentioned support mechanism is adopted for support, which can be more conveniently installed and disassembled, is more convenient to operate, and has a better user experience.

[0043] In some embodiments, the four-wheel walking cart further includes a seat cushion 8, moving wheels 9 and a handle 10. The seat cushion 8 is arranged between the two support mechanisms. The seat cushion 8 is detachably connected to the connecting rod 7. The moving wheels 9 are connected to the bottom of the support mechanism, and the handle 10 is connected to the top of the support mechanism. Specifically, the number of the connecting rods 7 is also two. The seat cushion 8 is detachably connected to the two connecting rods 7. The moving wheels 9 are connected to the first support rod 1 and the second support rod 4, and the handle 10 is connected to the first support rod 1. By providing the seat cushion 8, the user experience can be improved. By providing the moving wheels 9, it can be more conveniently moved. And by providing the armrest, it can be more convenient for the user to push the four-wheel walking cart, and it is more convenient to use.

[0044] Furthermore, the four-wheel walking cart further includes a hand push tube. One end of the hand push tube is connected to the handle 10, and the other end of the hand push tube is connected to the first support rod 1. In the four-wheel walking cart provided in this embodiment, a detachable connecting seat 2 is used to connect the first support rod 1 and the second support rod 4, and the support force-bearing effect is better. In addition, the connecting seat 2 is arranged at the connection of the first support rod 1 and the hand push tube, which can better adapt to the gap between the first support rod 1 and the hand push tube, and can more conveniently adjust the position of the hand push tube.

[0045] In some embodiments, the four-wheel walking cart further includes a backrest cushion 11. The backrest cushion 11 is detachably connected to the connecting seat 2. Specifically, buckles 12 are provided on both sides of the backrest cushion 11, and buckle holes adapted to the buckles 12 are provided on the connecting seat 2. The backrest cushion 11 is snap-fitted to the connecting seat 2, which can more conveniently complete the splicing, is more convenient to operate, and the overall structure is more firm.

[0046] In some embodiments, the four-wheel walking cart further includes a storage bag 13. The storage bag 13 is detachably connected to the two connecting rods 7. The storage bag 13 is located below the seat cushion 8. By providing the storage bag 13, the user can place sundries in the storage bag 13, and it is more convenient to use.

[0047] In some embodiments, both the first support rod 1 and the second support rod 4 are telescopic rods, which can more conveniently adjust the height of the entire four-wheel walking cart, have better adaptability, and are more convenient to use.

[0048] The above are only embodiments of the present utility model, and thus do not limit the patent scope of the present utility model. Any equivalent structure or equivalent process transformation made by using the content of the specification of the present utility model, or directly or indirectly applied in other related technical fields, shall similarly be included within the patent protection scope of the present utility model.

Claims

1. A support mechanism, characterized in that: include: A first support rod (1); A connecting seat (2), the connecting seat (2) being arranged on the first supporting rod (1), the connecting seat (2) comprising a first connecting block (21) and a second connecting block (22), the first connecting block (21) being detachably connected to the second connecting block (22), and a mounting hole (23) for the first supporting rod (1) to pass through being formed between the first connecting block (21) and the second connecting block (22).

2. The support mechanism according to claim 1, characterized in that: The supporting mechanism further comprises a locking bolt, which is threadedly connected to the first connecting block (21) and the second connecting block (22) in sequence.

3. The support mechanism according to claim 1, characterized in that: The support mechanism further comprises a limiting protrusion (3), the inner sides of the first connecting block (21) and the second connecting block (22) are both provided with the limiting protrusion (3), the first supporting rod (1) is provided with a limiting hole, and the limiting protrusion (3) is inserted into the limiting hole.

4. The support mechanism according to claim 1, characterized in that: The first connecting block (21) is provided with a guide groove (24), and the second connecting block (22) is provided with a guide protrusion (25) matched with the guide groove (24).

5. The support mechanism according to claim 1, characterized in that: The first connection block (21) is provided with an anti-slip groove (26), and the second connection block (22) is provided with an anti-slip protrusion (27) matched with the anti-slip groove (26).

6. The support mechanism according to claim 1, characterized in that: The support mechanism further comprises a second support rod (4), wherein the second support rod (4) is rotatably connected to the connection seat (2).

7. The support mechanism according to claim 6, characterized in that: The support mechanism further comprises a first connecting rod (5) and a second connecting rod (6), one end of the first connecting rod (5) being rotatably connected to the first support rod (1), the other end of the first connecting rod (5) being rotatably connected to one end of the second connecting rod (6), and the other end of the second connecting rod (6) being rotatably connected to the second support rod (4).

8. A four-wheeled walking cart, characterized in that: It comprises a connecting rod (7) and the support mechanism according to any one of claims 1 to 7, wherein the number of the support mechanisms is two, the two support mechanisms are arranged at an interval, and the two ends of the connecting rod (7) are respectively detachably connected to the two support mechanisms.

9. The four-wheeled walking stroller according to claim 8, characterized in that: The four-wheeled walking cart further comprises a seat cushion (8), moving wheels (9) and a handle (10); the seat cushion (8) is arranged between the two supporting mechanisms, the seat cushion (8) is detachably connected to the connecting rod (7), the moving wheels (9) are connected to the bottom of the supporting mechanism, and the handle (10) is connected to the top of the supporting mechanism.

10. The four-wheeled walking stroller according to claim 8, characterized in that: The four-wheeled walking stroller further comprises a backrest pad (11), and the backrest pad (11) is detachably connected to the connecting seat (2).

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