Novel wheelchair wheel damping device

Abstract

The utility model provides a novel damping device for wheelchair wheels, which relates to the technical field of wheelchairs and comprises wheels, a rotating shaft is arranged at the center of each wheel, one side of each wheel is connected with a damping device through the rotating shaft, and the wheels are connected with a wheelchair through the damping devices. Wheelchair wheels are connected with the damping device through the rotating shafts, when the wheels encounter a bumpy road surface, the centers of the wheels move upwards, the rotating shafts of the wheels extrude the elastic damping assemblies upwards, the elastic damping assemblies are compressed, part of upward displacement of the connecting base and the wheelchair can be counteracted, and in other words, the upward moving amplitude of the whole wheelchair becomes small. When bumping on the lower side of the wheelchair disappears or becomes small, the wheels drive the rotating shafts and the elastic damping assemblies to gradually reset and rebound to the initial state to achieve the buffering and damping effect, and therefore the damping effect of the wheels is improved, and comfort and user experience are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a wheelchair technical field especially a novel wheelchair wheel damping device. BACKGROUND

[0002] The wheelchair is the walking aid of the special crowd such as the disabled, the old and weak, etc., and the wheelchair is usually composed of a frame, front wheels, rear wheels and the like, and the wheelchair usually adopts the solid tire wheel, and the damping effect is poor, so that the comfort is poor. Most of the users of the wheelchair are the old people, or the people with the inconvenient movement due to the limb disability, and their bones and muscle tissues feel uncomfortable when meeting the bumpy road surface, and the pneumatic wheel can absorb certain impact, but the universal small wheel has high production cost and is not suitable for the wheelchair field. SUMMARY

[0003] The utility model overcomes the shortcoming in the prior art and provides a novel wheelchair wheel damping device.

[0004] In order to solve the above technical problems, the utility model is realized through the following technical schemes:

[0005] A novel wheelchair wheel damping device, comprising a wheel, a rotating shaft is arranged at the center of the wheel, a damping device is connected to one side of the wheel through the rotating shaft, and the wheel is connected with the wheelchair through the damping device.

[0006] Preferably, the damping device comprises a connecting seat, the rotating shaft is movably connected to the lower part of the connecting seat, an elastic damping assembly is arranged at the upper part of the damping device, and the rotating shaft is arranged at the lower side of the elastic damping assembly and can extrude the elastic damping assembly upward to achieve the damping purpose.

[0007] Preferably, the elastic damping assembly comprises a pushing assembly, and a damping spring is sleeved outside the pushing assembly.

[0008] The pushing assembly comprises a pushing rod and a hollow fixing tube, the upper end of the pushing rod is movably sleeved in the fixing tube, the damping spring is sleeved outside the pushing rod and the fixing tube, the rotating shaft is arranged at the lower side of the pushing rod and moves synchronously with the pushing rod.

[0009] The wheel drives the rotating shaft to move up and down, and drives the pushing rod to extrude the damping spring and move up and down in the fixing tube.

[0010] Preferably, the upper end of the fixing tube is fixedly connected with the connecting seat, the outer side of the fixing tube is provided with threads and is connected with a baffle through the threads, the pushing rod is provided with a baffle plate, and the damping spring is arranged between the baffle and the baffle plate.

[0011] Preferably, the rotating shaft is connected with the pushing rod through a mounting piece, the upper end of the mounting piece is fixedly connected with the pushing rod, and the lower end is movably connected with the connecting seat.

[0012] Preferably, both sides of the connecting seat are provided with two upper and lower hole positions, and the pushing rod is movably connected at the upper hole position through bolts penetrating the mounting piece and the upper hole position of the connecting seat.

[0013] The lower end of the mounting piece is movably connected at the lower hole position of the connecting seat through bolts penetrating the lower hole position of the connecting seat.

[0014] The length of the hole position is greater than the diameter of the bolt.

[0015] The pushing rod and the mounting piece are movably connected at the lower side of the connecting seat through bolts.

[0016] Preferably, the connecting seat is provided as a U-shaped structure connecting seat, and the elastic damping assembly and the rotating shaft are connected in the recessed part of the U-shaped structure connecting seat.

[0017] Preferably, the mounting piece is provided as a U-shaped structure connecting piece.

[0018] Preferably, one end of the rotating shaft is mounted in the damping device through a mounting piece, and the other end is connected with the wheel and is provided with a bearing between the wheel.

[0019] Preferably, a wheelchair comprises the wheel damping device structure according to any one of the above.

[0020] Compared with the prior art, the beneficial effects of the present application are:

[0021] A novel wheelchair wheel damping device connects the wheelchair wheel with the damping device through a rotating shaft, when the wheel encounters a bumpy road, the center of the wheel moves upward, the rotating shaft extrudes the elastic damping assembly upward, the elastic damping assembly is compressed, and the upward displacement of the connecting seat and part of the wheelchair can be offset (that is, the upward displacement of the whole wheelchair is reduced), when the bumpy road on the lower side of the wheelchair disappears or becomes smaller, the rotating shaft and the elastic damping assembly driven by the wheel gradually reset and rebound to the initial state, thereby playing a buffering and damping role, thereby improving the damping effect of the wheel and improving the comfort and user experience. BRIEF DESCRIPTION OF DRAWINGS

[0022] The accompanying drawings are used to provide a further understanding of the present application, together with the embodiments of the present application, to explain the present application, and do not constitute a limitation on the present application, in which:

[0023] Figure 1It is the first structure schematic view of the wheel and the damping device.

[0024] Figure 2 It is the second structure schematic view of the wheel and the damping device.

[0025] Figure 3 It is the first structure schematic view of the damping device.

[0026] Figure 4 It is the second structure schematic view of the damping device.

[0027] Figure 5 It is the third structure schematic view of the wheel and the damping device.

[0028] Figure 6 It is the fourth structure schematic view of the wheel and the damping device.

[0029] In the figure: 1-wheel; 2-rotary shaft; 3-damping device; 4-connection seat; 5-elastic damping assembly; 6-push assembly; 7-damping spring; 8-push rod; 9-fixed tube; 10-baffle; 11-baffle; 12-mounting piece; 13-hole site; 14-U-shaped structure connection seat; 15-U-shaped structure connecting piece; 16-bearing. DETAILED DESCRIPTION

[0030] The preferred embodiments of the utility model are described below in combination with the drawings, and it should be understood that the preferred embodiments described here are only for illustrating and explaining the utility model, and are not used for limiting the utility model.

[0031] As Figures 1 to 6 shown, a new wheelchair wheel damping device, including wheel 1, wheel 1 center is equipped with rotary shaft 2, wheel 1 side is connected with damping device 3 through rotary shaft 2, wheel 1 is connected with wheelchair through damping device 3.

[0032] Specifically, damping device 3 includes connection seat 4, rotary shaft 2 is movably connected in the lower part of connection seat 4, damping device 3 upper part is equipped with elastic damping assembly 5, rotary shaft 2 is placed in the lower side of elastic damping assembly 5 and can extrude elastic damping assembly 5 upwards to achieve the purpose of damping.

[0033] As Figure 3 and Figure 4 shown, elastic damping assembly 5 includes push assembly 6, push assembly 6 is sleeved with damping spring 7.

[0034] The pushing assembly 6 comprises a pushing rod 8 and a fixed tube 9 with a hollow, the upper end of the pushing rod 8 is movably sleeved in the fixed tube 9, a damping spring 7 is sleeved outside the pushing rod 8 and the fixed tube 9, and the rotating shaft 2 is arranged at the lower side of the pushing rod 8 and moves synchronously with the pushing rod 8;

[0035] More specifically, the upper end of the fixed tube 9 is fixedly connected with the connecting seat 4, the outer side of the fixed tube 9 is provided with threads and the baffle 10 is connected through the threads, the pushing rod 8 is provided with the baffle 11, and the damping spring 7 is arranged between the baffle 10 and the baffle 11 to limit the connection of the pushing rod 8 and the fixed tube 9.

[0036] The wheel 1 drives the rotating shaft 2 to move up and down, and drives the pushing rod 8 to extrude the damping spring 7 and move up and down in the fixed tube 9.

[0037] The rotating shaft 2 is connected with the pushing rod 8 through the mounting piece 12, the upper end of the mounting piece 12 is fixedly connected with the pushing rod 8, and the lower end is movably connected with the connecting seat 4.

[0038] Two upper and lower hole positions 13 are arranged on both sides of the connecting seat 4, the pushing rod 8 is movably connected at the upper hole position 13 through the bolt passing through the mounting piece 12 and the connecting seat 4;

[0039] The lower end of the mounting piece 12 is movably connected at the lower hole position 13 through the bolt passing through the lower hole position 13 of the connecting seat 4;

[0040] The length of the hole position 13 is greater than the diameter of the bolt;

[0041] The pushing rod 8 and the mounting piece 12 are movably connected at the lower side of the connecting seat 4 through the connection of the bolt and the hole position 13, and the hole position 13 also limits the movement of the rotating shaft 2.

[0042] Further, the connecting seat 4 is arranged as a U-shaped structure connecting seat 14, and the elastic damping assembly 5 and the rotating shaft 2 are connected to the recessed part of the U-shaped structure connecting seat 14, which is more convenient for the installation of the connecting seat 4 and the wheelchair.

[0043] Better, the mounting piece 12 is arranged as a U-shaped structure connecting piece 15.

[0044] One end of the rotating shaft 2 is arranged in the damping device 3 through the mounting piece 12, the other end is connected with the wheel 1 and is provided with a bearing 16 between the wheel 1, and the rotation of the wheel 1 is facilitated.

[0045] As Figure 6 and Figure 6As shown in the figure, the figure is the first embodiment case of the utility model, connecting the wheelchair wheel 1 with the damping device 3 through the rotating shaft 2, when the wheel 1 meets the bumpy road, the wheel 1 center moves upward, the rotating shaft 2 extrudes the elastic damping component 5 upward, the elastic damping component 5 compresses upward, can offset the upward displacement of the connecting seat 4 and the part of the wheelchair (that is, the amplitude of the overall upward movement of the wheelchair is smaller), when the lower side of the wheelchair bounces disappears or becomes smaller, the damping spring 7 rebounds, promotes the rotating shaft 2 and the elastic damping component 5 gradually reset, rebounds to the initial state and plays the role of buffering and damping, thereby improving the damping effect of the wheel 1, improving the comfort and user experience.

[0046] Finally, it should be noted that: the above is only the preferred embodiment of the utility model, and is not used to limit the utility model, although the utility model is described in detail with reference to the embodiment, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or equivalent replacement to part of the technical features, but any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model, should be included in the protection scope of the utility model.

Claims

1. A new wheelchair wheel shock absorbing device characterized by: The utility model provides a kind of shock-absorbing device (3) and wheelchair connection of wheel (1), wheel (1) is provided with rotating shaft (2) in the center, one side of wheel (1) is connected with shock-absorbing device (3) by rotating shaft (2), and wheel (1) is connected with wheelchair by shock-absorbing device (3); The shock-absorbing device (3) includes a connecting seat (4), the rotating shaft (2) is movably connected to the lower part of the connecting seat (4), and the upper part of the shock-absorbing device (3) is provided with an elastic damping assembly (5), the rotating shaft (2) is placed on the lower side of the elastic damping assembly (5) and can extrude the elastic damping assembly (5) upward to achieve the purpose of shock absorption.

2. A new wheelchair wheel shock absorbing device according to claim 1 characterized by: The elastic damping assembly (5) includes a push assembly (6), and the push assembly (6) is sleeved with a damping spring (7). The push assembly (6) includes a push rod (8) and a hollow fixing tube (9), the upper end of the push rod (8) is movably sleeved in the fixing tube (9), the damping spring (7) is sleeved outside the push rod (8) and the fixing tube (9), and the rotating shaft (2) is placed on the lower side of the push rod (8) and moves synchronously with the push rod (8). The wheel (1) drives the rotating shaft (2) to move up and down, and drives the push rod (8) to extrude the damping spring (7) and move up and down in the fixing tube (9).

3. A new wheelchair wheel shock absorbing device according to claim 2, characterized in that: The upper end of the fixing tube (9) is fixedly connected with the connecting seat (4), the outside of the fixing tube (9) is provided with threads and is connected with a baffle (10) through threads, the push rod (8) is provided with a baffle (11), and the damping spring (7) is placed between the baffle (10) and the baffle (11).

4. A new wheelchair wheel shock absorbing device according to claim 2 or 3, characterized in that: The rotating shaft (2) is connected with the push rod (8) through a mounting piece (12), the upper end of the mounting piece (12) is fixedly connected with the push rod (8), and the lower end is movably connected with the connecting seat (4).

5. A new wheelchair wheel shock absorbing device according to claim 4, characterized in that: Both sides of the connecting seat (4) are provided with two hole positions (13) up and down, the push rod (8) is movably connected at the upper hole position (13) by passing through the mounting piece (12) and the connecting seat (4) through bolts. The lower end of the mounting piece (12) is movably connected at the lower hole position (13) by passing through the connecting seat (4) through bolts. The length of the hole position (13) is greater than the diameter of the bolt. The push rod (8) and the mounting piece (12) are movably connected on the lower side of the connecting seat (4) by connecting with the hole position (13) through bolts.

6. A new wheelchair wheel shock absorbing device according to claim 5, characterized in that: The connecting seat (4) is provided as a U-shaped structure connecting seat (14), and the elastic damping assembly (5) and the rotating shaft (2) are connected in the recessed part of the U-shaped structure connecting seat (14).

7. A new wheelchair wheel shock absorbing device according to claim 5, characterized in that: The mounting piece (12) is provided as a U-shaped structure connecting piece (15).

8. A new wheelchair wheel shock absorbing device according to claim 4, characterized in that: One end of the rotating shaft (2) is installed in the shock-absorbing device (3) through the mounting piece (12), the other end is connected with the wheel (1) and is provided with a bearing (16) between the wheel (1).

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