Hanging ring assembly and foldable bicycle

Abstract

This utility model belongs to the field of foldable vehicle technology, and particularly relates to a hanging ring assembly and a foldable vehicle. It includes: a base, the outer wall of which is arc-shaped and has at least two positioning grooves; a hanging ring, having a pivot end and a free end, the pivot end of which is pivotally connected to the base via a pivot shaft, and a limiting cavity is formed at the pivot end; a push block, slidably disposed within the limiting cavity, with its first end extending outside the limiting cavity and abutting against the positioning grooves; and a spring member, disposed within the limiting cavity, one end of which abuts against the second end of the push block, and the other end of which is fixed to the inner wall of the limiting cavity. The spring member is always in a compressed state and drives the push block to press against the positioning grooves. In this hanging ring assembly, the mechanical cooperation between the push block and the positioning grooves, along with the continuous pressing force of the spring member, makes it difficult for the ring to disengage.

Description

Technical Field

[0001] This utility model belongs to the field of foldable vehicle technology, and in particular relates to a hanging ring assembly and a foldable vehicle. Background Technology

[0002] Foldable vehicles (such as scooters and folding bicycles) are portable short-distance transportation tools that typically require a lifting pole structure after folding for movement or storage (e.g., in a car trunk). To ensure a stable connection between the folded pole structure and the frame, existing technologies usually employ a combination of a hanging loop assembly and a hook: a hanging loop is installed on the pole structure, and a hook is installed on the frame. The folded state is secured by the engagement of the hanging loop and the hook, ensuring the vehicle remains stable when the user lifts the pole.

[0003] The existing hanging ring assembly has the following shortcomings: 1) Some hanging ring components have overly simple structures, such as the hanging rings not being able to be stored and fixed, or the position and angle not being fixed. This may cause the hanging rings to be exposed when the foldable vehicle is unfolded, making them easy to snag on surrounding objects and affecting the safety and aesthetics of use. At the same time, when fixing them to the hook, manual and precise focusing is required, which is cumbersome and inefficient, resulting in a poor user experience.

[0004] 2) Some hanging ring assemblies use a spring-loaded ball bearing structure to limit the hanging ring position. However, this type of structure has a large number of parts, which increases the cost of parts and the difficulty of assembly. In addition, the ball bearing needs to be pressed hard into the mounting hole of the hanging ring seat, which requires extremely high assembly accuracy in terms of hole size and pressing depth. After long-term use, the ball bearing is prone to wear and loosening, resulting in locking failure.

[0005] Based on this, the present invention provides a novel hanging ring assembly and a foldable vehicle to overcome the above-mentioned defects. Utility Model Content

[0006] The purpose of this invention is to provide a hanging ring assembly. This assembly achieves reliable self-locking of the hanging ring in both unfolded and retracted states through the mechanical cooperation between the push block and the positioning groove, as well as the continuous clamping force of the spring. This significantly improves vibration resistance and reduces the likelihood of disengagement. Furthermore, it employs a "push-press-self-locking" operation mode, requiring only rotational force from the user to switch states, making operation simple.

[0007] This utility model adopts the following technical solution: a hanging ring assembly, comprising: The base has an arc-shaped outer wall surface and at least two positioning grooves on the outer wall surface. The hanging ring has a pivot end and a free end. The pivot end of the hanging ring is pivotally connected to the base via a rotating shaft, and a limiting cavity is formed at the pivot end of the hanging ring. A push block is slidably disposed within the limiting cavity, and the first end of the push block extends to the outside of the limiting cavity and abuts against the positioning groove. A spring is disposed within the limiting cavity. One end of the spring abuts against the second end of the push block, and the other end of the spring is fixed to the inner wall of the limiting cavity. The spring is always in a compressed state and drives the push block to press against the positioning groove.

[0008] Furthermore, the positioning groove has an arc-shaped concave structure.

[0009] Furthermore, the first end of the push block is formed with an arc-shaped outward protrusion that is adapted to the arc-shaped concave structure.

[0010] Furthermore, the arc-shaped convex portion is composed of at least two spaced arc-shaped convex strips.

[0011] Furthermore, the outer side wall of the push block is provided with a plurality of axial protrusions, which extend along the length direction of the push block; Correspondingly, a guide groove adapted to the axial protrusion is provided on the inner wall of the limiting cavity. The axial protrusion is placed in the guide groove to realize the sliding connection between the push block and the inner wall of the limiting cavity.

[0012] Furthermore, two axial protrusions are provided, and the two axial protrusions are arranged symmetrically.

[0013] Furthermore, the limiting cavity forms a closed end on the side away from the base, and the other end of the spring abuts against the inner wall surface of the closed end.

[0014] Furthermore, the second end of the push block extends away from the push block to form a boss, and one end of the spring is sleeved on the boss.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: The basic working principle of the hanging ring assembly in this utility model is as follows: When the hanging ring is in the extended state, the push block, under the elastic force of the spring, has its first end abut against a positioning groove in the base, keeping the hanging ring at a fixed angle. At this time, the spring is in a compressed state, providing continuous clamping force to ensure that the hanging ring will not easily rotate due to external force.

[0016] When the hanging ring needs to be stored, the user applies external force to make the hanging ring rotate around the pivot axis towards the side of the upright structure, forcing the push block to rotate around the pivot axis as well, and continuing to compress the spring until it slides into the adjacent positioning groove; after the external force is removed, the push block automatically engages in the new positioning groove under the elastic force of the spring, so that the hanging ring is stably fixed at a new angle (such as the stored state).

[0017] In this invention, the hanging ring assembly achieves reliable self-locking in both unfolded and retracted states through the mechanical cooperation between the push block and the positioning groove, as well as the continuous clamping force of the spring component. This significantly improves vibration resistance and reduces the likelihood of disengagement. Furthermore, the "push-press-self-locking" operation mode allows users to switch states simply by applying rotational force, making operation easy.

[0018] Meanwhile, this hanging ring assembly consists of only four core components: a base, a hanging ring, a push block, and a spring. Its simple and compact structure greatly reduces assembly difficulty, improves production efficiency, and reduces parts manufacturing and assembly costs. Furthermore, in the unfolded state, the hanging ring extends outwards, providing stable support for hanging items, combining practicality and reliability, and is suitable for various scenarios.

[0019] The second objective of this utility model is to provide a foldable vehicle, which includes a frame body and a pole structure that can be folded relative to the frame body. The aforementioned hanging ring assembly is mounted on the upright structure, and the base of the hanging ring assembly is fixedly connected to the upright structure. The frame body is provided with a hook component. When the upright structure is folded relative to the frame body, the hanging ring in the hanging ring assembly is in the unfolded state, and the hanging ring is hooked and connected to the hook component.

[0020] Furthermore, the side of the hook that contacts the hanging ring is an inclined surface. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the foldable vehicle in its open state in a specific embodiment of this utility model; Figure 2 This is a partial structural diagram of the foldable vehicle in its folded state in a specific embodiment of this utility model; Figure 3 This is a schematic diagram of the hanging ring assembly structure in an embodiment of this utility model; Figure 4 for Figure 3 Schematic diagram of the central base structure; Figure 5 for Figure 3 Schematic diagram of the structure after assembly of the central hanging ring, push block, and spring components; Figure 6 for Figure 5 A sectional view; Figure 7 for Figure 3 Schematic diagram of the middle hanging ring structure; Figure 8 for Figure 3 Schematic diagram of the middle pusher block structure; The components include: base 1, rotating shaft 10, positioning groove 11; hanging ring 2, pivot end 20, free end 21, limiting cavity 22, guide slide 221, closed end 222; push block 3, first end 30, second end 31, arc-shaped protrusion 32, axial protrusion 33, boss 34; spring component 4; frame body 5, hook component 50; upright structure 6. Detailed Implementation

[0023] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0024] The following is in conjunction with the appendix Figure 1 To be continued Figure 8 The present invention will be described in detail with reference to specific embodiments: like Figures 1 to 8 As shown, this utility model provides a hanging ring assembly, which includes: The base 1 is used to fix the upright structure 6 of the foldable vehicle. The outer wall surface of the base 1 is arc-shaped and at least two positioning grooves 11 are provided on the outer wall surface of the base 1. Hanging ring 2, the hanging ring 2 has a pivot end 20 and a free end 21, the pivot end 20 of the hanging ring 2 is pivotally connected to the base 1 through a rotating shaft 10, and a limiting cavity 22 is formed in the pivot end 20 of the hanging ring 2; Push block 3, which is slidably disposed in the limiting cavity 22, and the first end 30 of the push block 3 extends to the outside of the limiting cavity 22 and abuts against the positioning groove 11; Spring 4 is disposed in the limiting cavity 22. One end of the spring 4 abuts against the second end 31 of the push block 3, and the other end of the spring 4 is fixed to the inner wall of the limiting cavity 22. The spring 4 is always in a compressed state and drives the push block 3 to press against the positioning groove 11.

[0025] The basic working principle of the hanging ring assembly in this utility model is as follows: When the hanging ring 2 is in the unfolded state, the push block 3, under the elastic force of the spring 4, has its first end abut against a certain positioning groove 11 of the base 1, keeping the hanging ring 2 at a fixed angle. At this time, the spring 4 is in a compressed state, providing continuous clamping force to ensure that the hanging ring 2 will not easily rotate due to external force.

[0026] When the hanging ring 2 needs to be stored, the user applies external force to make the hanging ring 2 rotate around the pivot 10 toward the side closer to the upright structure 6, forcing the push block 3 to rotate around the pivot 10 together and continue to compress the spring 4 until it slides into the adjacent positioning groove 11; after the external force is removed, the push block 3 automatically engages in the new positioning groove 11 under the elastic force of the spring 4, so that the hanging ring 2 is stably fixed at a new angle (such as the stored state).

[0027] In this invention, the hanging ring assembly achieves reliable self-locking of the hanging ring 2 in both unfolded and retracted states through the mechanical cooperation between the push block 3 and the positioning groove 11, and the continuous pressing force of the spring 4. This significantly improves vibration resistance and makes it less prone to disengagement. Furthermore, the "push-press-self-locking" operation mode allows users to switch states simply by applying rotational force, making operation easy.

[0028] Meanwhile, the hanging ring assembly consists of only four core components: base 1, hanging ring 2, push block 3, and spring 4. Its simple and compact structure greatly reduces assembly difficulty, improves production efficiency, and reduces parts manufacturing and assembly costs. Furthermore, in the unfolded state, the hanging ring 2 extends outwards, providing stable support for hanging items, combining practicality and reliability, and is suitable for various scenarios.

[0029] In this embodiment, as Figure 4 As shown, two positioning grooves 11 are provided. One positioning groove is located on the top wall of the base 1. When the push block 3 is placed in this positioning groove 11, the hanging ring 2 is in an unfolded state with a 90-degree angle to the upright structure 6. The other positioning groove is located on the side wall of the base 1 near the frame body 5. When the push block 3 is placed in this positioning groove 11, the hanging ring 2 is in a basically parallel state with the upright structure 6. At this time, the hanging ring 2 is in a retracted state. Similarly, three positioning grooves 11 can be provided, such as two in an unfolded state and one in a retracted state.

[0030] Furthermore, in some specific embodiments, such as Figure 4 As shown, the positioning groove 11 has an arc-shaped concave structure.

[0031] like Figure 5 , 8 As shown, the first end 30 of the pusher block 3 is formed with an arc-shaped convex portion that is adapted to the arc-shaped concave structure.

[0032] When the hanging ring 2 is subjected to vibration or impact, the tangent direction of the arc-shaped contact surface forms a certain angle with the direction of the external force, which can effectively decompose the external force, reduce the risk of the push block 3 dislodging from the positioning groove 11, and improve self-locking stability. At the same time, the large arc-shaped contact area and low pressure per unit area can reduce frictional wear between the push block 3 and the surface of the positioning groove 11, and extend the service life of the parts. In addition, the arc-shaped structure allows the push block 3 to form a continuous curved trajectory when sliding between different positioning grooves 11, avoiding jamming or stuck phenomena, making operation easier for users and providing a better user experience.

[0033] More specifically, in this embodiment, such as Figure 8 As shown, the arc-shaped protrusion is composed of at least two spaced arc-shaped protrusions 32. Compared with the integral structure, it can disperse stress concentration and extend the service life of the push block 3. At the same time, the gaps between the arc-shaped protrusions 32 form a "vibration damping zone", and vibration energy is absorbed through gap deformation, which is especially suitable for scenarios where the hanging ring needs to switch between the unfolded and retracted states at high frequency.

[0034] Furthermore, in some specific embodiments, such as Figure 8 As shown, the outer side wall of the push block 3 is provided with a plurality of axial protrusions 33, which extend along the length direction of the push block 3; Correspondingly, such as Figure 7 As shown, the inner wall of the limiting cavity 22 is provided with a guide groove 221 that is adapted to the axial protrusion 33. The axial protrusion 33 is placed in the guide groove 221 to realize the sliding connection between the push block 3 and the inner wall of the limiting cavity 22.

[0035] When push block 3 moves axially along the limiting cavity 22, axial protrusion 33 is embedded in guide groove 221, forming a "track-slider" constraint to ensure the movement trajectory of push block. When hanging ring 2 rotates and drives push block 3 to move, axial protrusion 33 slides in guide groove 221, while spring 4 drives push block 3 to engage with positioning groove 11, realizing synchronous control of "rotation-sliding" composite motion. When external force is applied to hanging ring, push block 3 transmits the load to the inner wall of limiting cavity 22 through axial protrusion 33, preventing push block 3 from deflecting.

[0036] In this embodiment, the push block 3 is cylindrical, and two axial protrusions 33 are provided on the outer side wall of the cylindrical push block 3. The axial protrusions 33 are elongated, and the two axial protrusions 33 are arranged symmetrically, resulting in good sliding stability.

[0037] Furthermore, in some specific embodiments, the limiting cavity 22 forms a closed end 222 on the side away from the base 1, and the other end of the spring member 4 abuts against the inner wall surface of the closed end 222 to prevent the spring member 4 from coming out from the closed end 222 side. Moreover, by internally installing the spring member 4, the service life and aesthetics can be extended.

[0038] Furthermore, in some specific embodiments, the second end 31 of the push block 3 extends away from the push block 3 to form a boss 34, and one end of the spring member 4 is sleeved on the boss 34 to enhance the connection stability and reliability.

[0039] Based on the aforementioned hanging ring assembly, this utility model also provides a foldable vehicle, which includes a frame body 5 and a vertical pole structure 6 that can be folded relative to the frame body 5, such as... Figure 1 As shown. In this utility model, there is no limitation on how the upright structure 6 and the frame body 5 can be folded. For example, a folding device can be set at the connection between the two, and the folding device can adopt existing technology.

[0040] The aforementioned hanging ring assembly is mounted on the upright structure 6, and the base 1 of the hanging ring assembly is fixedly connected to the upright structure 6. In the above embodiment, the base 1 can be fixedly installed on the upright structure 6 by screws or the like, or it can be integrally formed with the upright structure 6. It should be noted that in this utility model, the upright structure 6 includes both the upright part and the handle part located at the top of the upright part. Correspondingly, the hanging ring assembly can be located either on the upright part or on the handle part; the specific design and selection can be made by those skilled in the art.

[0041] Correspondingly, the frame body 5 is provided with a hook 50. When the upright structure 6 is folded relative to the frame body 5, the hanging ring 2 is in the unfolded state. The hanging ring 2 is hooked and connected to the hook 50, so that the foldable vehicle can maintain its folded state. Figure 2 As shown.

[0042] Specifically, the side of the hook 50 that contacts the hanging ring 2 is inclined, which facilitates the insertion of the hanging ring 2.

[0043] In use, fold the upright structure 6 downwards. When the hanging ring 2 contacts the hook 50 on the frame body 5, continue folding downwards. When the force applied to the hanging ring 2 by the hook 50 is greater than the torsional force of the first torsion spring, the hanging ring 2 rotates a certain angle towards the folded-in state. Continue folding downwards and pressing the upright structure 6. As the angle of the hanging ring 2 changes, the position of the hanging ring 2 relative to the hook 50 moves away from the hook 50. When the hook 50 can be fully inserted into the hanging ring 2, the force applied to the hanging ring 2 by the hook 50 disappears, and the first torsion spring will quickly spring the hanging ring 2 open to the unfolded state. The hanging ring 2 is then locked into the hook 50, achieving automatic locking and fixing between the hanging ring 2 and the hook 50.

[0044] When it is necessary to release the fastener, continue to press down on the upright structure 6 and manually turn the hanging ring 2 away from the hook 50. The hanging ring 2 will rotate a certain angle towards the storage position, and the tail end of the hanging ring 2 will move away from the hook 50 relative to it. At this time, lifting the upright structure 6 will disengage the hanging ring 2 from the hook 50. Continuing to rotate the upright structure 6 upwards will reset it to its initial state.

[0045] This utility model discloses a foldable vehicle, which includes at least all the technical solutions of the above-mentioned hanging ring assembly and has at least all the advantages of the above-mentioned hanging ring assembly, which will not be repeated here.

[0046] The present invention has been further described above with reference to specific embodiments. However, it should be understood that the specific description herein should not be construed as limiting the substance and scope of the present invention. Various modifications made by those skilled in the art to the above embodiments after reading this specification are all within the scope of protection of the present invention.

Claims

1. A hanging ring assembly, characterized in that: It includes: The base has an arc-shaped outer wall surface and at least two positioning grooves on the outer wall surface. The hanging ring has a pivot end and a free end. The pivot end of the hanging ring is pivotally connected to the base via a rotating shaft, and a limiting cavity is formed at the pivot end of the hanging ring. A push block is slidably disposed within the limiting cavity, and the first end of the push block extends to the outside of the limiting cavity and abuts against the positioning groove. A spring is disposed within the limiting cavity. One end of the spring abuts against the second end of the push block, and the other end of the spring is fixed to the inner wall of the limiting cavity. The spring is always in a compressed state and drives the push block to press against the positioning groove.

2. The hanging ring assembly according to claim 1, characterized in that: The positioning groove has an arc-shaped concave structure.

3. The hanging ring assembly according to claim 2, characterized in that: The first end of the pusher has an arc-shaped convex portion that matches the arc-shaped concave structure.

4. The hanging ring assembly according to claim 3, characterized in that: The arc-shaped convex portion is composed of at least two spaced arc-shaped convex strips.

5. The hanging ring assembly according to any one of claims 1 to 4, characterized in that: The outer wall of the push block is provided with a plurality of axial protrusions, which extend along the length direction of the push block; Correspondingly, a guide groove adapted to the axial protrusion is provided on the inner wall of the limiting cavity. The axial protrusion is placed in the guide groove to realize the sliding connection between the push block and the inner wall of the limiting cavity.

6. The hanging ring assembly according to claim 5, characterized in that: Two axial protrusions are provided, and the two axial protrusions are arranged symmetrically.

7. The hanging ring assembly according to claim 1, characterized in that: The limiting cavity forms a closed end on the side away from the base, and the other end of the spring abuts against the inner wall surface of the closed end.

8. The hanging ring assembly according to claim 1, characterized in that: The second end of the push block extends away from the push block to form a boss, and one end of the spring is sleeved on the boss.

9. A foldable vehicle, characterized in that: The foldable vehicle includes a frame body and a pole structure that can be folded relative to the frame body; The hanging ring assembly according to any one of claims 1 to 8 is disposed on the upright structure, and the base of the hanging ring assembly is fixedly connected to the upright structure; The frame body is provided with a hook component. When the upright structure is folded relative to the frame body, the hanging ring in the hanging ring assembly is in the unfolded state, and the hanging ring is hooked and connected to the hook component.

10. The foldable vehicle according to claim 9, characterized in that: The side of the hook that contacts the hanging ring is an inclined surface.

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