Mud guard structure and wheelchair

By employing a bolt-fastening structure and an eccentric threaded hole design in the mudguard structure of the wheelchair, the angle of the mudguard can be finely adjusted, solving the problem of concentric setting of the rear wheels of the wheelchair and improving the mudguarding effect and aesthetics.

CN224039494UActive Publication Date: 2026-03-27BOAI FANGTE INT TRADE (BEIJING) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-27
Publication Date
2026-03-27

AI Technical Summary

Technical Problem

The existing mudguard structure of wheelchairs cannot be concentrically set with the rear wheels when the front and rear height of the wheelchair is changed or different sizes of rear wheels are replaced, which affects the aesthetics and the mud-blocking effect is poor.

Method used

The connecting assembly consists of a bolt-fastening structure, including a waist-shaped washer and a circular washer. The mudguard installation angle can be finely adjusted through an eccentric threaded hole to ensure that the outer contour of the mudguard is concentrically set with the outer circumference of the rear wheel.

Benefits of technology

When adjusting the height of the front wheels of the wheelchair or replacing the rear wheels, the angle can be finely adjusted without replacing the mudguards, meeting different usage needs and maintaining mud-blocking effect and aesthetics.

✦ Generated by Eureka AI based on patent content.

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Abstract

A mudguard structure comprises a connecting seat, a mudguard body and a mudguard body, the connecting seat comprises a socket and a hoop, the hoop is arranged on the inner side of the socket, and the hoop is used for being connected with a vehicle frame; the plug connector comprises a plug and a connecting plate, the plug is arranged on the bottom side of the connecting plate, and the plug is detachably inserted into the socket; the mud guard is detachably connected with the connecting plate through a connecting assembly, and the connecting assembly is configured to be capable of adjusting the mounting angle of the mud guard relative to the plug connector. According to the mudguard structure and the wheelchair, the eccentric threaded hole is formed in the circular gasket, fine adjustment of the installation angle of the mudguard is achieved by rotating the circular gasket, and then the outline of the mudguard and the periphery of a rear wheel are concentrically arranged; when a user adjusts the height of front wheels of the wheelchair or replaces rear wheels of different sizes, fine adjustment of the installation angle of the mudguard can be achieved through the structure under the condition that the mudguard is not replaced, and different use requirements are met.
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Description

TECHNICAL FIELD

[0001] The utility model relates to a wheelchair technical field, especially a fender structure and wheelchair. BACKGROUND

[0002] Wheelchair as the walking aid of the old people, it usually will be taken to the outdoor to use, ground environment will contaminate rear wheel and manual wheel, if it does not install the appropriate fender, rear wheel will dirty user's clothes, and manual wheel will also dirty user's both hands, at the same time, finger can possibly stretch to the gap in the motion spoke, and then will hurt user's finger.

[0003] The fender structure in the prior art is fixedly arranged, when the height of the wheelchair is changed or the rear wheel of different sizes is replaced, the outer contour of the fender cannot be arranged concentrically with the rear wheel, which affects the appearance and the fender effect.

[0004] Therefore, in view of the deficiencies in the prior art, it is necessary to design a fender structure and wheelchair to solve the above problems. INVENTION CONTENTS

[0005] In order to overcome the deficiencies in the prior art, the utility model aims at providing a fender structure and wheelchair.

[0006] In order to achieve the above object and other related objects, the utility model provides a technical scheme, which is a fender structure, comprising:

[0007] The connecting seat comprises a socket and a clamp, the clamp is arranged on the inner side of the socket, and the clamp is connected with the frame;

[0008] The plug-in part comprises a plug and a connecting plate, the plug is arranged on the bottom side of the connecting plate, and the plug is detachably arranged in the socket;

[0009] The fender is detachably connected with the connecting plate through the connecting assembly, and the connecting assembly is configured to adjust the installation angle of the fender relative to the plug-in part.

[0010] The preferred technical scheme is that the connecting assembly is composed of two groups of bolt fastening structures, the bolt fastening structure is composed of a bolt, a waist-shaped gasket, a circular gasket, a waist-shaped embedded hole formed on the outer side of the fender, and a circular stepped hole formed on the inner side of the connecting plate, the waist-shaped gasket is embedded in the waist-shaped embedded hole, the circular gasket is rotatably embedded in the circular stepped hole, one side of the waist-shaped gasket is provided with a through hole, the circular gasket is provided with an eccentric threaded hole, and the bolt is screwed in the eccentric threaded hole through the through hole.

[0011] The waist-shaped embedding holes are preferably arranged in at least two groups and are arranged in an upper and lower interval mode.

[0012] The top side of the socket is provided with a slot, and the inner wall of the slot is provided with a positioning block arranged in the plug-in direction, the positioning block is in the wedge-shaped block structure of being narrow at the top and wide at the bottom.

[0013] The outer wall of the socket is provided with a pull rod mounting hole connected with the slot, the outer wall of the plug is provided with a lock groove corresponding to the pull rod mounting hole, and the elastic pull rod is mounted in the pull rod mounting hole and is provided at the end corresponding to the lock groove.

[0014] A wheelchair adopts the mudguard structure.

[0015] Due to the above technical scheme, the mudguard structure and the wheelchair have the beneficial effects that:

[0016] The mudguard structure and the wheelchair are provided with an eccentric threaded hole on the circular gasket, the installation angle of the mudguard is fine-tuned by rotating the circular gasket, and then the outer contour of the mudguard is concentrically arranged with the outer periphery of the rear wheel. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 The figure is a structural schematic view of the mudguard from one perspective.

[0018] Figure 2 The figure is a structural schematic view of the mudguard from another perspective.

[0019] Figure 3 The figure is an explosion view of the mudguard from one perspective.

[0020] Figure 4 The figure is an explosion view of the mudguard from another perspective.

[0021] Fig. 1 is a connecting seat; 11 is a socket; 111 is a slot; 1111 is a positioning block; 112 is a pull rod mounting hole; 12 is a hoop; 2 is a plug-in piece; 21 is a plug; 211 is a positioning groove; 212 is a locking groove; 22 is a connecting plate; 221 is a circular stepped hole; 3 is a fender; 31 is a waist-shaped embedded hole; 4 is a waist-shaped gasket; 41 is a via hole; 5 is a circular gasket; 51 is an eccentric threaded hole; 6 is an elastic pull rod. DETAILED DESCRIPTION

[0022] The implementation of the present application will be described by specific embodiments, and those skilled in the art can easily understand other advantages and effects of the present application from the content disclosed in the description.

[0023] Please refer to Figures 1-4 It should be noted that in the description of the present application, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly used when the product of the present application is used, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" and the like are only used for differentiation and cannot be understood as indicating or implying relative importance. The terms "horizontal", "vertical", "overhanging" and the like do not mean that the components must be absolutely horizontal or overhanging, but can be slightly inclined. For example, "horizontal" only means that its direction is relatively more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0024] In the description of the present application, it should also be noted that unless otherwise explicitly specified and limited, the terms "provided", "mounted", "connected", "connected" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrally connected, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or it can be indirectly connected through an intermediate medium, it can be the communication between the two elements inside. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0025] Embodiment:

[0026] As Figures 1 to 4As shown, according to one overall technical concept of the utility model, provide a fender structure, including: connecting seat (1), including socket (11) and clamp (12), clamp (12) is located in the inner side of socket (11), clamp (12) is connected with frame;Plug-in part (2), including plug (21) and connecting plate (22), plug (21) is located at the bottom side of connecting plate (22), plug (21) is detachably inserted in socket (11);Fender (3), fender (3) and connecting plate (22) are detachably connected through connecting assembly, and the connecting assembly is configured to be able to adjust the installation angle of fender (3) relative to plug-in part (2).

[0027] As Figures 1 to 4 Shown in one example embodiment of the utility model, the connecting assembly is composed of two groups of bolt fastening structures, the bolt fastening structure is composed of bolt (not drawn), waist-shaped gasket (4), round gasket (5), waist-shaped embedded hole (31) formed on the outer side of fender (3), round stepped hole (221) formed on the inner side of connecting plate (22), waist-shaped gasket (4) is embedded in waist-shaped embedded hole (31), round gasket (5) is rotatably embedded in round stepped hole (221), one side of waist-shaped gasket (4) is provided with a through hole (41), eccentric threaded hole (51) is provided on round gasket (5), and the bolt is screwed into eccentric threaded hole (51) through hole (41). By rotating round gasket (5), the angle of eccentric threaded hole (51) changes, and the installation angle of fender (3) can be finely adjusted to adapt to different use requirements.

[0028] As Figures 1 to 4 Shown in one example embodiment of the utility model, the waist-shaped embedded hole (31) has at least two groups, and is arranged in an upper and lower interval;Waist-shaped gasket (4) can be optionally arranged in the two groups of waist-shaped embedded holes (31);The upper and lower two groups of waist-shaped embedded holes (31) can meet the use of different users, and the applicability of the wheelchair is improved.

[0029] As Figures 1 to 4 Shown in one example embodiment of the utility model, the top side of socket (11) is provided with a slot (111), and the inner wall of slot (111) is provided with a positioning block (1111) arranged along the plug-in direction, and the positioning block (1111) is configured as a wedge-shaped block structure which is narrow at the top and wide at the bottom;The outer wall of plug (21) is provided with a positioning groove (211) arranged along the plug-in direction, and the positioning groove (211) is configured as a wedge-shaped groove structure with wide notch and narrow groove bottom, and the positioning block (1111) and the positioning groove (211) are correspondingly matched. This structure can keep the stability of plug (21) after being inserted into slot (111), and avoid the condition of shaking back and forth.

[0030] As Figures 1 to 4As shown, in an example embodiment of the utility model, still include elastic pull rod (6), the outer wall of socket (11) is equipped with the pull rod installation hole (112) that communicates the slot (111), the outer wall of plug (21) is equipped with the lock slot (212) corresponding with pull rod installation hole (112), elastic pull rod (6) is installed in pull rod installation hole (112) and the end with lock slot (212) corresponding arrangement.This structure is used to realize the detachable fixed connection between plug connector (2) and connecting seat (1).

[0031] The application also relates to a wheelchair adopting the mudguard structure.

[0032] Therefore, the utility model has the following advantages:

[0033] The utility model discloses a kind of mudguard structure and wheelchair, eccentric screw hole is provided on circular gasket, by rotating circular gasket, the fine adjustment of the installation angle of mudguard is realized, and then make the mudguard contour and rear wheel periphery concentric arrangement;When user adjusts wheelchair front wheel height, or replaces different size rear wheel, in the case where mudguard is not replaced, the fine adjustment of the installation angle of mudguard can be realized by above-mentioned structure, to meet different use needs.

[0034] The above embodiment is only illustrative of the principle and effect of the utility model, and is not used to limit the utility model. Any person skilled in the art can modify or change the above embodiment without departing from the spirit and scope of the utility model. Therefore, all equivalent modifications or changes completed by those skilled in the art without departing from the spirit and technical thought disclosed by the utility model should be covered by the claims of the utility model.

Claims

1. A mudguard structure characterized by comprising: The utility model relates to a wheelchair mudguard structure, comprising: a connecting seat, comprising a socket and a clamp, the clamp is arranged on the inner side of the socket, and the clamp is connected with the frame; a plug-in part, comprising a plug and a connecting plate, the plug is arranged on the bottom side of the connecting plate, and the plug is detachably inserted into the socket; a fender, which is detachably connected with the connecting plate through a connecting assembly, the connecting assembly is configured to adjust the mounting angle of the fender relative to the plug-in part.

2. A mudguard structure according to claim 1, characterised in that: The connecting assembly is composed of two groups of bolt fastening structures, the bolt fastening structure is composed of a bolt, a waist-shaped gasket, a circular gasket, a waist-shaped embedded hole formed on the outer side of the fender, and a circular stepped hole formed on the inner side of the connecting plate, the waist-shaped gasket is embedded in the waist-shaped embedded hole, the circular gasket is rotatably embedded in the circular stepped hole, one side of the waist-shaped gasket is provided with a through hole, and the circular gasket is provided with an eccentric threaded hole, the bolt is screwed into the eccentric threaded hole through the through hole.

3. A mudguard structure according to claim 2, wherein: The waist-shaped embedded hole has at least two groups and is arranged in an upper and lower interval; the waist-shaped gasket is optionally arranged in the two groups of waist-shaped embedded holes.

4. The mudguard structure according to claim 1, characterized by: The top side of the socket is provided with a slot, the inner wall of the slot is provided with a positioning block arranged in the plug-in direction, the positioning block is in the shape of a wedge-shaped block with a narrow top and a wide bottom; the outer wall of the plug is provided with a positioning groove arranged in the plug-in direction, the positioning groove is in the shape of a wedge-shaped groove with a wide slot opening and a narrow slot bottom, and the positioning block and the positioning groove are correspondingly matched.

5. A mudguard structure according to claim 4, wherein: Further comprising an elastic pull rod, the outer wall of the socket is provided with a pull rod mounting hole communicating with the slot, the outer wall of the plug is provided with a lock groove corresponding to the pull rod mounting hole, and the elastic pull rod is mounted in the pull rod mounting hole and the end portion is correspondingly arranged with the lock groove.

6. A wheelchair characterized by: The wheelchair adopts the fender structure of any one of claims 1-5.