Enhanced bicycle rear storage rack

By designing a locking component on the bicycle rear rack, and utilizing a wedge-shaped fit and elastic structure to lock the nut, the problem of loosening caused by bumps is solved, thereby improving the stability and strength of the bicycle rear rack.

CN224117428UActive Publication Date: 2026-04-14NINGHAI XIANGHUA CAR MATERIAL CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGHAI XIANGHUA CAR MATERIAL CO LTD
Filing Date
2025-05-13
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

The threaded connection of the bicycle rear rack may loosen due to bumps during riding, making it impossible to install stably for a long time, which affects the load-bearing capacity and riding stability.

Method used

A bicycle rear rack with a locking component was designed. The locking element locks the rotation of the nut through a wedge-shaped engagement and elastic structure, preventing loosening.

Benefits of technology

It improves the stability and strength of the bicycle rear rack, ensuring that the nuts do not loosen during bumpy rides, thus enhancing load capacity and riding stability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an enhanced bicycle rear goods shelf which comprises a goods shelf body, a rotating shaft, a nut and a locking assembly. The goods shelf main body is suitable for being in threaded connection with the nuts through the rotating shafts so as to be mounted on an external frame; the locking assembly is installed on the goods shelf body in a matched mode, and the locking assembly is suitable for locking or unlocking rotation of the nuts after the nuts are connected. The bicycle rear storage rack has the beneficial effects that compared with an existing bicycle rear storage rack, the locking assembly can lock or unlock rotation of the nut, so that the nut cannot rotate after the nut is locked by the locking assembly, the nut cannot be loosened due to bumping generated in the riding process, and the bicycle rear storage rack is more convenient to use. Therefore, the strength and the stability of the bicycle rear storage rack are improved.
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Description

Technical Field

[0001] This application relates to the field of bicycles, and more specifically to an enhanced bicycle rear rack. Background Technology

[0002] The main function of a bicycle rear rack is to expand the bicycle's carrying capacity, improve riding stability, and meet the needs of long-distance riding. Usually, a bicycle rear rack is installed on the bicycle frame by being threaded to the bicycle axle. Bicycles are easily bumped during riding due to road conditions. Over a long period of riding, the threaded connection between the bicycle rear rack and the bicycle axle can loosen due to the bumps generated during riding, which will cause the bicycle rear rack to be unable to be stably installed on the bicycle frame for long-term use.

[0003] Therefore, improvements to the existing bicycle rear racks are now needed. Utility Model Content

[0004] The purpose of this application is to provide a bicycle rear rack that can solve at least one of the defects in the above-mentioned background art.

[0005] To achieve at least one of the above objectives, the technical solution adopted in this application is as follows: an enhanced bicycle rear rack, comprising a rack body, a pivot, a nut, and a locking assembly; the rack body is adapted to be threadedly connected to an external frame via the pivot and the nut; the locking assembly is fitted onto the rack body, and the locking assembly is adapted to lock or unlock the rotation of the nut after the nut is connected.

[0006] Preferably, the locking assembly includes a locking member; the locking member is elastically slidably mounted on the shelf body; the locking member is adapted to engage with the nut to lock the rotation of the nut.

[0007] Preferably, the shelf body includes a connecting rod, the pivot is adapted to pass through the connecting end of the connecting rod and connect with the nut; the locking member is elastically slidably mounted on the connecting end and the locking end of the locking member extends out of the connecting end; the nut is provided with a locking groove; the locking end is adapted to wedge with the locking groove in the tightening direction of the nut, so that the locking member is continuously pressed into the connecting end when the nut is tightened; the locking end is adapted to limit the locking groove in the opposite tightening direction of the nut, so that the nut is limited by the locking member after tightening.

[0008] Preferably, the locking end is provided with a first vertical surface and a first inclined surface; the locking groove is provided with a second vertical surface; when the nut is tightened, the nut is adapted to engage with the first inclined surface in a wedge-shaped fit; after the nut is tightened, the first vertical surface is adapted to abut against the second vertical surface to form the limiting fit.

[0009] Preferably, the locking groove is further provided with a second inclined surface; the first inclined surface is adapted to engage with the second inclined surface in the wedge-shaped fit.

[0010] Preferably, the locking component further includes an unlocking component; the unlocking component is slidably mounted on the connecting end and engages with the locking component, and the unlocking component is adapted to drive the locking end of the locking component to retract into the connecting end.

[0011] Preferably, the unlocking element is adapted to engage with the locking element in a wedge-shaped manner.

[0012] Preferably, the unlocking end of the unlocking member is provided with a wedge-shaped surface; the locking member is provided with a hollow groove; the wedge-shaped surface is adapted to cooperate with the groove to form the wedge-shaped fit.

[0013] Preferably, the unlocking element is adapted to be elastically slidably mounted on the connecting end via an elastic element.

[0014] Compared with the prior art, the beneficial effects of this application are as follows:

[0015] Compared to existing bicycle rear racks, the locking component in this application can lock or unlock the rotation of the nut, so that the nut cannot rotate after the locking component locks it, thus preventing the nut from loosening due to bumps during riding, thereby improving the strength and stability of the bicycle rear rack. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0017] Figure 2 This is a schematic diagram showing the structure of the locking component and the nut in this utility model.

[0018] Figure 3 This is a cross-sectional schematic diagram showing the wedge-shaped fit between the unlocking and locking components in this utility model.

[0019] Figure 4 This is a cross-sectional schematic diagram of the elastic sliding installation of the unlocking component in this utility model.

[0020] In the diagram: Shelf body 1, connecting rod 10, connecting end 100, nut 2, locking groove 20, second vertical surface 200, rotating shaft 3, locking assembly 4, locking component 40, locking end 400, first inclined surface 4000, first vertical surface 4001, groove 401, first elastic component 402, unlocking component 41, wedge surface 410, second elastic component 412. Detailed Implementation

[0021] The present application will be further described below with reference to specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0022] In the description of this application, it should be noted that the directional terms such as "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limiting the specific protection scope of this application.

[0023] It should be noted that the terms "first," "second," etc., in the specification and claims of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0024] The terms “comprising” and “having”, and any variations thereof, in the specification and claims of this application are intended to cover non-exclusive inclusion, for example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or device.

[0025] One preferred embodiment of this application, such as Figure 1 and Figure 2 As shown, an enhanced bicycle rear rack includes a rack body 1, a pivot 3, a nut 2, and a locking component 4. The rack body 1 is adapted to be threadedly connected to an external frame via the pivot 3 and the nut 2. The locking component 4 is fitted onto the rack body 1 and is adapted to lock or unlock the rotation of the nut 2 after the connection is completed.

[0026] It should be understood that the main function of a bicycle rear rack is to expand the bicycle's carrying capacity, improve riding stability, and adapt to the needs of long-distance riding. Usually, the bicycle rear rack is installed on the bicycle frame by being threaded to the bicycle axle. Bicycles are easily bumped during riding due to road conditions. Over a long period of riding, the threaded connection between the bicycle rear rack and the bicycle axle can loosen due to the bumps generated during riding, which will cause the bicycle rear rack to be unable to be stably installed on the bicycle frame for a long time.

[0027] Compared to traditional solutions, the advantage of this solution lies in the locking component 4. After the nut 2 and the shaft 3 are connected, the locking component 4 can lock the rotation of the nut 2, preventing the nut 2 from rotating in the opposite direction. This prevents the nut 2 from moving away from the shelf body 1, thus ensuring that the nut 2 will not loosen even after long-term use. Therefore, the setting of the locking component 4 improves the stability and strength of the shelf body 1.

[0028] In this embodiment, as Figure 2 As shown, the locking component 4 includes a locking element 40; the locking element 40 is elastically slidably mounted on the shelf body 1; the locking element 40 is adapted to engage with the nut 2 to lock the rotation of the nut 2.

[0029] It should be understood that the main body 1 of the shelf includes a connecting rod 10, and a rotating shaft 3 is adapted to pass through the connecting end 100 of the connecting rod 10 and connect with the nut 2; a locking member 40 is elastically slidably installed on the connecting end 100 and the locking end 400 of the locking member 40 extends out of the connecting end 100; a locking groove 20 is provided on the nut 2; the locking end 400 is adapted to wedge with the locking groove 20 in the tightening direction of the nut 2, so that the locking member 40 is continuously pressed into the connecting end 100 when the nut 2 is tightened; the locking end 400 is adapted to limit the locking groove 20 in the opposite tightening direction of the nut 2, so that the nut 2 is limited by the locking member 40 after tightening.

[0030] For the aforementioned limiting fit, the locking end 400 is provided with a first vertical surface 4001 and a first inclined surface 4000; the locking groove 20 is provided with a second vertical surface 200; when the nut 2 is tightened, the nut 2 is adapted to engage with the first inclined surface 4000 in a wedge shape; after the nut 2 is tightened, the first vertical surface 4001 is adapted to abut against the second vertical surface 200 to form the aforementioned limiting fit.

[0031] In this embodiment, as Figure 2 and Figure 3 As shown, a second inclined surface is also provided on the locking groove 20; the first inclined surface 4000 is adapted to engage with the second inclined surface in a wedge-shaped manner.

[0032] Specifically, the connecting rods 10 include a pair. The rack body 1 is connected to the external frame by a pair of connecting rods 10. After the installation positions of the pair of connecting rods 10 and the external frame are aligned, the rotating shaft 3 passes through the installation points of the pair of connecting rods 10 and is threadedly connected to the nut 2, so that the rack body 1 is fixedly installed on the external frame; for example... Figure 2 As shown, the locking end 400 of the locking member 40 is provided with a first inclined surface 4000, and the locking member 40 is elastically slidably mounted on the connecting end 100 by the first elastic member 402. It should be noted that in the initial state, the locking end 400 of the locking member 40 extends out of the connecting end 100. When the nut 2 and the rotating shaft 3 are threaded together and tightened to a certain extent, the nut 2 will engage with the first inclined surface 4000 through the second inclined surface, causing the locking end 400 of the locking member 40 to retract into the connecting end 100. The nut 2 continues to rotate and threadedly connects with the rotating shaft 3, and the locking end 400 retracts into the connecting end 100. When the position of the fixed end 400 corresponds to the position of the locking groove 20 on the nut 2, the locking end 400 will be reset under the action of the elastic force of the first elastic element 402, so that the locking end 400 extends out and is located in the locking groove 20. It can be understood that the locking end 400 and the locking groove 20 are respectively provided with a first vertical surface 4001 and a second vertical surface 200. When the locking end 400 extends out and is located in the locking groove 20, the first vertical surface 4001 will abut against the second vertical surface 200, so that the nut 2 cannot rotate in the opposite direction of tightening, thereby preventing the nut 2 from loosening.

[0033] It should be understood that after the locking member 40 is compressed and contracted by the nut 2, it is reset under the elastic force of the first elastic member 402. When the main body of the shelf 1 needs to be disassembled, the nut 2 must be able to rotate in the opposite direction of tightening. At this time, the locking member 40 needs to be able to actively retract into the connecting end 100, so that the locking end 400 and the locking groove 20 are disengaged, thereby allowing the nut 2 to rotate in the opposite direction.

[0034] Therefore, in this embodiment, as Figure 2 As shown, the locking component 4 also includes an unlocking component 41; the unlocking component 41 is slidably mounted on the connecting end 100 and is connected to the locking component 40; the unlocking component 41 is adapted to drive the locking end 400 of the locking component 40 to retract into the connecting end 100.

[0035] Specifically, such as Figure 4 As shown, the unlocking member 41 is elastically slidably installed on the connecting end 100 through the second elastic member 412 and is connected to the locking member 40 to drive the locking end 400 of the locking member 40 to retract into the connecting end 100; when the shelf body 1 needs to be disassembled, only the unlocking member 41 needs to be driven.

[0036] For the mating connection between the unlocking member 41 and the locking member 40, it is only necessary to drive the locking member 40 through the unlocking member 41 to retract the locking end 400 of the locking member 40 into the connecting end 100. There are various connection methods, and those skilled in the art can choose according to actual needs; in this embodiment, such as... Figure 3 As shown, a wedge fit is preferably used between the unlocking member 41 and the locking member 40; the unlocking end of the unlocking member 41 is provided with a wedge-shaped surface 410; the locking member 40 is provided with a hollow groove 401; the wedge-shaped surface 410 is adapted to fit with the groove 401 to form a wedge fit.

[0037] Specifically, such as Figure 3 As shown, the unlocking end of the unlocking member 41 is provided with a wedge-shaped surface 410, and the locking member 40 is provided with a hollow groove 401. The unlocking end of the unlocking member 41 extends into the groove 401, so that the wedge-shaped surface 410 abuts against one side of the groove 401. Pressing the unlocking member 41 causes the unlocking member 41 and the locking member 40 to engage in a wedge shape, so that the locking member 40 can retract into the connecting end 100, thereby allowing the nut 2 to rotate.

[0038] To facilitate understanding, the overall workflow of this embodiment will be described in detail below.

[0039] When the nut 2 is threaded and locked to allow the main body 1 of the shelf to be installed stably, firstly, the nut 2 is threaded and tightened to the shaft 3. At this time, the locking end 400 of the locking member 40 is located outside the connecting end 100. When the nut 2 needs to be locked, the nut 2 will first contact the inclined surface 4000. If the nut 2 is rotated, the nut 2 will abut against the inclined surface 4000, causing the locking end 400 to retract into the connecting end 100. If the nut 2 is rotated again, when the locking end 400 and the locking groove 20 are aligned, the locking end 400 will be reset under the elastic force of the first elastic member 402. The first vertical surface 4001 will abut against the second vertical surface 200, so that the nut 2 can no longer rotate in the opposite direction of tightening, thereby locking the nut 2.

[0040] When nut 2 needs to be rotated in the opposite direction of tightening to allow the shelf body 1 to be disassembled, first press the unlocking part 41 so that the wedge-shaped surface 410 on the unlocking part 41 and the groove 401 on the locking part 40 engage in a wedge-shaped fit. This causes the locking part 40 to retract into the connecting end 100 under the drive of the unlocking part 41, thus disengaging the locking end 400 from the locking groove 20. At this time, nut 2 is no longer restricted by the locking part 40, and nut 2 can be rotated in the opposite direction of tightening, allowing the shelf body 1 to be disassembled.

[0041] The basic principles, main features, and advantages of this application have been described above. Those skilled in the art should understand that this application is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of this application. Various changes and modifications can be made to this application without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection claimed by this application is defined by the appended claims and their equivalents.

Claims

1. An enhanced bicycle rear rack, characterized in that, The device includes a shelf body, a pivot, a nut, and a locking assembly; the shelf body is adapted to be threadedly connected to an external frame via the pivot and the nut; the locking assembly is fitted onto the shelf body and is adapted to lock or unlock the rotation of the nut after the nut is connected.

2. The enhanced bicycle rear rack as described in claim 1, characterized in that, The locking assembly includes a locking element; the locking element is elastically slidably mounted on the shelf body; the locking element is adapted to engage with the nut to lock the rotation of the nut.

3. The enhanced bicycle rear rack as described in claim 2, characterized in that, The main body of the shelf includes a connecting rod, and the rotating shaft is adapted to pass through the connecting end of the connecting rod and connect with the nut; the locking member is elastically slidably installed on the connecting end and the locking end of the locking member extends out of the connecting end; the nut is provided with a locking groove; the locking end is adapted to engage with the locking groove in a wedge-shaped fit along the tightening direction of the nut, so that the locking member is continuously pressed into the connecting end when the nut is tightened; the locking end is adapted to engage with the locking groove in the opposite tightening direction of the nut in a limiting fit, so that the nut is limited by the locking member after tightening.

4. The enhanced bicycle rear rack as described in claim 3, characterized in that, The locking end is provided with a first vertical surface and a first inclined surface; the locking groove is provided with a second vertical surface; when the nut is tightened, the nut is adapted to engage with the first inclined surface in a wedge-shaped fit; after the nut is tightened, the first vertical surface is adapted to abut against the second vertical surface to form the limiting fit.

5. An enhanced bicycle rear rack as described in claim 4, characterized in that, The locking groove is further provided with a second inclined surface; the first inclined surface is adapted to engage with the second inclined surface in the wedge shape.

6. An enhanced bicycle rear rack as described in claim 3, characterized in that, The locking assembly further includes an unlocking component; the unlocking component is slidably mounted on the connecting end and engages with the locking component, and the unlocking component is adapted to drive the locking end of the locking component to retract into the connecting end.

7. An enhanced bicycle rear rack as described in claim 6, characterized in that, The unlocking component is adapted to engage with the locking component in a wedge shape.

8. An enhanced bicycle rear rack as described in claim 7, characterized in that, The unlocking end of the unlocking component is provided with a wedge-shaped surface; the locking component is provided with a hollow groove; the wedge-shaped surface is adapted to cooperate with the groove to form the wedge-shaped fit.

9. An enhanced bicycle rear rack as described in claim 8, characterized in that, The unlocking element is adapted to be elastically slidably installed on the connecting end via an elastic element.