A shock-absorbing spoke structure and wheel

Abstract

This utility model discloses a shock-absorbing spoke structure and a wheel. The shock-absorbing spoke includes a tubular spoke, a guide seat, a wear-resistant bushing, and an elastic element. At least one end of the tubular spoke is slidably connected to a guide seat before being connected and fixed to the hub and rim respectively. The guide seat has a guide hole for the tubular spoke to pass through, and the wear-resistant bushing is installed in the gap between the guide hole and the tubular spoke. The wear-resistant bushing has a sliding hole for the tubular spoke to slide through. The elastic element connects the tubular spoke and the guide seat, and provides elastic force to separate the tubular spoke from the guide seat. By setting the wear-resistant bushing between the guide hole and the tubular spoke, a limiting function can be provided to prevent the tubular spoke from shifting or tilting as the wheel rotates. At the same time, the wear-resistant bushing also provides lateral support force to ensure that the tubular spoke can reciprocate and extend along the guide seat and the wear-resistant bushing in the axial direction, and achieves a good shock absorption and buffering effect in conjunction with the elastic element.

Description

Technical Field

[0001] This utility model relates to the technical field of wheels, and in particular to a shock-absorbing spoke structure and a wheel. Background Technology

[0002] Wheels are rotating components that bear the load between tires and axles, and are typically mounted on transportation vehicles such as bicycles, wheelchairs, strollers, trailers, and trolleys.

[0003] Ordinary wheels are not equipped with good shock absorption measures. When encountering uneven road surfaces, the impact force on the wheels will be transmitted to the vehicle and the user, which can easily cause the goods to bounce and be damaged, or affect the comfort of the driver and passengers.

[0004] Therefore, solutions such as the shock absorber, bicycle shock-absorbing wheel, and shock-absorbing bicycle disclosed in Chinese Patent Publication No. CN209776031U, and the bicycle tire shock-absorbing steel rim disclosed in Chinese Patent Publication No. CN213831215U, replace the common spokes with piston-type spring shock absorbers to achieve a shock absorption effect during riding. However, in actual use, the piston shaft of commonly used shock absorbers will also experience lateral displacement and misalignment as the vehicle rotates during axial shock absorption extension and contraction. Since the piston shaft requires clearance fit with the piston chamber for movement, lateral displacement will affect the shock absorption effect and result in a poor user experience. Utility Model Content

[0005] The purpose of this invention is to provide a shock-absorbing spoke structure and wheel, which has the advantage of improving the shock absorption effect.

[0006] To achieve the above objectives, the solution of this utility model is:

[0007] A shock-absorbing spoke structure is installed between the hub and the rim of a wheel;

[0008] The damping spokes include tubular spokes, guide seats, wear-resistant bushings, and elastic elements;

[0009] At least one end of the spoke is slidably connected to a guide seat before being connected and fixed to the hub and rim respectively;

[0010] The guide seat has a guide hole for the spokes to pass through, and the wear-resistant bushing is installed in the gap between the guide hole and the spokes. The wear-resistant bushing has a sliding hole for the spokes to slide through.

[0011] The elastic element connects the spokes and the guide seat, providing elastic force to separate the spokes from the guide seat.

[0012] Furthermore, the guide seat has a guide hole at one end, and an upper cover is provided on the outside of the guide hole, and the upper cover has a through hole for the spokes to pass through; the wear-resistant bushing is installed between the guide hole and the spokes and is also clamped between the upper cover and the guide seat.

[0013] Furthermore, the upper cover includes a cover plate and a cover body circumferentially disposed on one side of the cover plate. The cover plate is provided with the through hole, and the cover body covers and screws onto the outer periphery of the guide seat end. The wear-resistant bushing includes an inner insert portion inserted into the guide hole and a limiting portion snapped between the upper cover cover plate and the guide seat end.

[0014] Furthermore, the sliding hole is filled with grease; a rubber gasket is provided at the through hole of the cover plate, the rubber gasket is sleeved on the spoke to seal the through hole of the cover plate, and the rubber gasket has a snap-fit ​​part that is limited to the inside of the through hole of the cover plate.

[0015] Furthermore, the elastic element is a spring disposed in the guide hole, with its two ends abutting against the ends of the tube spokes and the bottom of the guide hole, respectively.

[0016] Furthermore, the spoke end is provided with a "T" type connector, one end of which abuts against the spoke end, and the middle protrusion of the other end is inserted into the spring hole of the elastic element; a metal gasket is also provided between the elastic element and the bottom of the guide hole.

[0017] Furthermore, the guide seat has a connecting part at the other end away from the guide hole. The connecting part is a first connecting part for connecting with the hub or a second connecting part for connecting with the rim. The hub has a connecting protrusion with a connecting hole. The first connecting part is a fixing part that is fixed in the connecting hole. The second connecting part is a connector that is adapted to and fits against the inner ring surface of the rim. The connector is locked and fixed to the rim.

[0018] Furthermore, each end of the spoke is slidably connected to a guide seat, and the spoke is divided into two sections with different inner and outer diameters.

[0019] Furthermore, the wear-resistant bushing is made of POM, PEEK, PA, UHMW, aluminum alloy, iron-based alloy or tungsten steel.

[0020] This utility model also provides a wheel, including a hub, a rim, and the aforementioned shock-absorbing spokes; at least three shock-absorbing spokes are provided between the hub and the rim, and the shock-absorbing spokes are eccentrically arranged.

[0021] By adopting the above technical solution, the wear-resistant bushing between the guide hole and the spoke can play a limiting role, preventing the spoke from shifting or tilting as the wheel rotates. At the same time, the wear-resistant bushing also provides lateral support, ensuring that the spoke can reciprocate along the guide seat and the wear-resistant bushing in the axial direction. Combined with the elastic element, it achieves a good shock absorption and buffering effect, which can have a better shock absorption effect than existing shock absorbers. Attached Figure Description

[0022] Figure 1 This is a perspective view of Embodiment 1 of the present utility model;

[0023] Figure 2 This is a front view of Embodiment 1 of the present utility model;

[0024] Figure 3 This is a side view of Embodiment 1 of the present invention;

[0025] Figure 4 for Figure 3 Sectional view at point AA;

[0026] Figure 5 for Figure 4 Enlarged view of point B;

[0027] Figure 6 This is an exploded view of the shock-absorbing spoke structure of Embodiment 1 of this utility model;

[0028] Figure 7 This is a perspective view of Embodiment 2 of the present invention;

[0029] Figure 8 This is a cross-sectional view of Embodiment 2 of the present invention;

[0030] Figure 9 This is a perspective view of Embodiment 3 of the present invention;

[0031] Figure 10 This is a cross-sectional view of Embodiment 3 of the present invention.

[0032] Labeling: Hub 10, Connecting Protrusion 11, Connecting Hole 111, Rim 20, Shock Absorber Spoke 30, Tubular Spoke 31, Guide Seat 32, Guide Hole 321, Wear-resistant Bushing 33, Sliding Hole 331, Inner Insertion 332, Limiting Part 333, Elastic Member 34, Spring Hole 341, Top Cover 35, Through Hole 351, Cover Plate 352, Cover Body 353, Rubber Washer 36, Snap-fit ​​Part 361, "T" Type Connector 37, Middle Protrusion 371, Metal Washer 38, Connecting Part 39, First Connecting Part 391, Fixing Part 3911, Second Connecting Part 392, Connector 3921, Screw 40. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0034] Example 1

[0035] like Figures 1 to 4 As shown, this embodiment provides a wheel structure, including a hub 10, a rim 20, and shock-absorbing spokes 30.

[0036] At least three circumferentially spaced damping spokes 30 may be provided between the hub 10 and the rim 20; the damping spokes 30 are eccentrically arranged. These damping spokes 30 can reduce the bumps of the transport vehicle during wheel rotation, providing good shock absorption for transported goods or passengers, and improving the user experience.

[0037] For details, please refer to [link / reference]. Figure 5 and Figure 6 The shock-absorbing spoke 30 includes a tubular spoke 31, a guide seat 32, a wear-resistant bushing 33, and an elastic element 34.

[0038] At least one of the two ends of the spoke 31 is slidably connected to a guide seat 32 before being connected and fixed to the hub 10 and the rim 20 respectively; this embodiment is illustrated by taking the example where both ends of the spoke 31 are slidably connected to guide seats 32.

[0039] The guide seat 32 has a guide hole 321 for the spoke 31 to pass through, and the wear-resistant bushing 33 is installed in the gap between the guide hole 321 and the spoke 31. The wear-resistant bushing 33 has a sliding hole 331 for the spoke 31 to slide through.

[0040] The elastic element 34 connects the spokes 31 and the guide seat 32, and is used to provide elastic force to separate the spokes 31 and the guide seat 32 from each other.

[0041] Therefore, by setting the wear-resistant bushing 33 between the guide hole 321 and the spoke 31, it can play a limiting role, preventing the spoke 31 from deviating or tilting as the wheel rotates. At the same time, the wear-resistant bushing 33 also provides lateral support force, ensuring that the spoke 31 can reciprocate and extend along the guide seat 32 and the wear-resistant bushing 33 in the axial direction, and achieve a good shock absorption and buffering effect in conjunction with the elastic element 34.

[0042] In this embodiment, the guide seat 32 has a guide hole 321 at one end, and a top cover 35 is provided on the outside of the guide hole 321. The top cover 35 has a through hole 351 for the spokes 31 to pass through. The wear-resistant bushing 33 is installed between the guide hole 321 and the spokes 31, and is also clamped between the top cover 35 and the guide seat 32. By providing the top cover 35, the assembly operation of the product can be facilitated, and the wear-resistant bushing 33 can be easily fixed.

[0043] Specifically, the upper cover 35 may include a cover plate 352 and a cover body 353 circumferentially disposed on one side of the cover plate 352. The cover plate 352 is provided with the through hole 351, and the cover body 353 covers and can be screwed onto the outer periphery of the end of the guide seat 32 (thread structure not shown). Thus, in this embodiment, the upper cover 35 is detachably screwed onto the guide seat 32, which facilitates the replacement of the severely worn wear-resistant bushing 33 in the later stage, maintaining the shock absorption effect.

[0044] The wear-resistant bushing 33 includes an inner insertion part 332 inserted into the guide hole 321 and a limiting part 333 that is snapped between the cover plate 352 of the upper cover 35 and the end of the guide seat 32. This prevents the wear-resistant bushing 33 from sliding with the spokes 31 in the guide hole 321, ensuring lateral support and facilitating later replacement.

[0045] In this embodiment, the sliding hole 331 can be filled with lubricant such as grease to facilitate the sliding of the spoke 31 and reduce the wear of the wear-resistant bushing 33. A rubber washer 36 can also be provided at the through hole 351 of the cover plate 352. The rubber washer 36 is fitted onto the spoke 31 to seal the through hole 351 of the cover plate 352 for dust protection and to prevent grease leakage. Furthermore, the rubber washer 36 has a locking portion 361 that is limited to the inside of the through hole 351 of the cover plate 352 to prevent the rubber washer 36 from sliding out of the through hole 351.

[0046] In this embodiment, the spokes 31 can be made of titanium tubing. The top cover 35 can be made of aluminum alloy to provide good structural strength. The wear-resistant bushing 33 can be made of non-metallic polymers such as POM (polyoxymethylene), PEEK (polyetheretherketone), PA (polyamide), UHMW (ultra-high molecular weight polyethylene), or wear-resistant materials such as aluminum alloy, iron-based alloy, or hard alloy (tungsten carbide).

[0047] In this embodiment, the elastic element 34 is a spring disposed within the guide hole 321, with its two ends abutting against the end of the spoke 31 and the bottom of the guide hole 321, respectively. Of course, the elastic element 34 can also be configured as an external sleeve on the spoke 31, referring to other existing technologies, and is not limited to this embodiment. In this embodiment, placing the spring within the guide hole 321 avoids damage to the spring and improves product reliability and service life.

[0048] Furthermore, the end of the spoke 31 may be provided with a "T" type connector 37, one end of the "T" type connector 37 abuts against the end of the spoke 31, and the middle protrusion 371 of the other end is inserted into the spring hole 341 of the elastic member 34; thereby, the compression effect of the spoke 31 on the spring can be improved, and the middle protrusion 371 can prevent the spring from shifting when compressed.

[0049] A metal gasket 38, such as a stainless steel gasket, is also provided between the elastic element 34 and the bottom of the guide hole 321 to make it more wear-resistant and increase its strength.

[0050] In this embodiment, a guide seat 32 is slidably connected to both ends of the spoke 31, allowing both ends of the spoke 31 to extend and retract, thus achieving optimal shock absorption. Furthermore, the spoke 31 can be divided into two sections with different inner and outer diameters, reducing the volume of one of the guide seats 32 and facilitating product assembly and use. For example, the section of the spoke 31 closer to the rim 20 can have a smaller diameter.

[0051] Specifically, the other end of the guide seat 32 away from the guide hole 321 may be provided with a connecting part 39, which may be a first connecting part 391 for connecting with the hub 10 or a second connecting part 392 for connecting with the wheel rim 20.

[0052] In this embodiment, the hub 10 has three circumferentially spaced connecting protrusions 11 on its side wall, and each connecting protrusion 11 has a connecting hole 111. The first connecting part 391 is a fixing part 3911 that is fixed within the connecting hole 111. In this embodiment, the fixing part 3911 is a threaded connector, which is fixed by threaded connection with the connecting hole 111, making assembly convenient and quick. Thread fastening adhesive can be added to improve the connection and fixing effect. The second connecting part 392 is a connector 3921 that fits and conforms to the inner ring surface of the rim 20. The connector 3921 can be locked and fixed to the rim 20 by multiple screws 40 to ensure a stable connection between the spokes 31 and the rim 20.

[0053] Example 2

[0054] like Figure 7 and Figure 8 As shown, the structure of this embodiment is basically the same as that of the above embodiments. The main difference is that in this embodiment, the spoke 31 only slides onto the guide seat 32 at one end near the hub 10. The guide seat 32 is connected to the hub 10 through the first connecting part 391, while the spoke 31 at the end near the rim 20 is directly connected to the rim 20 via the connector 3921. This shows that the shock-absorbing spoke 30 of this utility model can achieve the shock-absorbing effect even if it only slides onto the guide seat 32 at one end.

[0055] Example 3

[0056] like Figure 9 and Figure 10 As shown, the structure of this embodiment is basically the same as that of the above embodiments. The main difference is that in this embodiment, the spoke 31 only slides onto the guide seat 32 at one end near the rim 20. The guide seat 32 is connected to the rim 20 through the second connecting part 392, while the spoke 31 at the end near the hub 10 is directly connected to the hub 10 via the first connecting part 391. This shows that the shock-absorbing spoke 30 of this utility model can achieve the shock-absorbing effect even if it only slides onto the guide seat 32 at one end.

[0057] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected by this utility model. It should be noted that for those skilled in the art, equivalent changes and modifications without departing from the principle of this utility model should still fall within the protection scope of this utility model.

[0058] In the description of the embodiments of this application, it should be understood that the indicated orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, or the orientations or positional relationships commonly used when the product is in use, or the orientations or positional relationships commonly understood by those skilled in the art. These are only for the convenience of describing this application and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. In the description of this application, "a plurality of" and "several" mean two or more, unless otherwise explicitly specified.

Claims

1. A shock-absorbing spoke structure, installed between the hub and rim of a wheel; characterized in that: The damping spokes include tubular spokes, guide seats, wear-resistant bushings, and elastic elements; At least one end of the spoke is slidably connected to a guide seat before being connected and fixed to the hub and rim respectively; The guide seat has a guide hole for the spokes to pass through, and the wear-resistant bushing is installed in the gap between the guide hole and the spokes. The wear-resistant bushing has a sliding hole for the spokes to slide through. The elastic element connects the spokes and the guide seat, providing elastic force to separate the spokes from the guide seat.

2. The damping spoke structure according to claim 1, characterized in that: The guide seat has a guide hole at one end, and an upper cover is provided on the outside of the guide hole. The upper cover has a through hole for the spokes to pass through. The wear-resistant bushing is installed between the guide hole and the spokes and is also clamped between the upper cover and the guide seat.

3. The damping spoke structure according to claim 2, characterized in that: The upper cover includes a cover plate and a cover body circumferentially disposed on one side of the cover plate. The cover plate is provided with the through hole, and the cover body covers and screws onto the outer periphery of the guide seat end. The wear-resistant bushing includes an inner insert portion inserted into the guide hole and a limiting portion snapped between the upper cover cover plate and the guide seat end.

4. The damping spoke structure according to claim 2, characterized in that: The sliding hole is filled with grease; a rubber gasket is provided at the through hole of the cover plate, the rubber gasket is sleeved on the spoke to seal the through hole of the cover plate, and the rubber gasket has a snap-fit ​​part that is limited to the inside of the through hole of the cover plate.

5. The damping spoke structure according to claim 1, characterized in that: The elastic element is a spring installed in the guide hole, with its two ends abutting against the ends of the spokes and the bottom of the guide hole, respectively.

6. The damping spoke structure according to claim 5, characterized in that: The spoke end is provided with a "T" type connector, one end of which abuts against the spoke end, and the middle protrusion of the other end is inserted into the spring hole of the elastic element; a metal gasket is also provided between the elastic element and the bottom of the guide hole.

7. The damping spoke structure according to claim 1, characterized in that: The guide seat has a connecting part at the other end away from the guide hole. The connecting part is a first connecting part for connecting with the hub or a second connecting part for connecting with the rim. The hub has a connecting protrusion with a connecting hole. The first connecting part is a fixing part that is fixed in the connecting hole. The second connecting part is a connector that is adapted to and fits into the inner ring surface of the rim. The connector is locked and fixed to the rim.

8. The damping spoke structure according to claim 1, characterized in that: Both ends of the spoke are slidably connected to a guide seat, and the spoke is divided into two sections with different inner and outer diameters.

9. A shock-absorbing spoke structure according to claim 1, characterized in that: The wear-resistant bushing is made of POM, PEEK, PA, UHMW, aluminum alloy, iron-based alloy or tungsten steel.

10. A wheel, characterized in that: It includes a hub, a rim, and a shock-absorbing spoke as described in any one of claims 1-9; at least three shock-absorbing spokes are provided between the hub and the rim, and the shock-absorbing spokes are eccentrically arranged.

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