Spring type anti-falling tubular structure

Abstract

The utility model discloses a spring type anti-falling tubular structure. The spring type anti-falling tubular structure comprises a first tube material and a second tube material which is telescopically assembled in the first tube material, a groove is formed in the side wall of the lower portion of the first pipe material, a mounting support is arranged at the lower end of the second pipe material, a limiting column capable of transversely and telescopically sliding is elastically assembled on the mounting support, and the limiting column is limited by the mounting support when returning. The second pipe material can be loaded into the first pipe material by pressing the limiting column, and when the limiting column reaches the slotting position, the limiting column can automatically rebound and form up-down limiting. After being assembled in place, the anti-falling device can automatically rebound to achieve the anti-falling function, locking response is rapid, and time and labor are saved.

Description

Technical Field

[0001] This utility model relates to the field of vehicle parts technology, and in particular to a spring-loaded anti-detachment tubular structure. Background Technology

[0002] Currently, in the field of two-wheeled vehicle technology, the center tube and seat tube or battery tube of a vehicle generally use a sliding assembly locking mechanism for easy height adjustment. To prevent the seat tube from suddenly falling off during height adjustment, especially if pulled too forcefully or pressed too hard, causing damage to the tube material and seat cushion, an anti-fall-off limiting structure needs to be added between the two tubes. However, existing anti-fall-off devices for tubular connection structures generally require manual locking, which limits their use in scenarios where manual operation is inconvenient, such as in confined spaces or locations obstructed by other vehicle components, where manual assembly is very difficult. Furthermore, some structures have slow locking response and insufficient anti-fall-off timeliness, requiring repeated attempts, which is quite troublesome; some anti-fall-off structures are too large, taking up considerable space and hindering the installation of other components or manual operation. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a spring-type anti-fall-off tubular structure that can automatically rebound after being assembled into place to achieve the anti-fall-off function. The locking response is fast and quick, saving time and effort.

[0004] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows:

[0005] A spring-loaded anti-detachment tubular structure includes a first tubular material and a second tubular material telescopically assembled within the first tubular material;

[0006] The first pipe has a groove on its lower side wall, and the second pipe has a mounting bracket at its lower end. The mounting bracket is elastically fitted with a limiting post that can slide laterally. When the limiting post returns to its original position, it is limited by the mounting bracket.

[0007] Pressing the limiting post allows the second tube to be inserted into the first tube. When the limiting post reaches the slotted position, it can automatically spring back and form upper and lower limits.

[0008] Furthermore, the bottom end of the second tube has a right-angle notch, the mounting bracket is horizontally assembled on the vertical plane of the right-angle notch, the limiting post slides through the mounting bracket and a limiting baffle is provided in the middle, the limiting baffle and the inner wall of the mounting bracket form a fitting limiting, and a spring sleeved on the limiting post is also provided between the limiting baffle and the vertical plane of the right-angle notch.

[0009] Furthermore, a telescopic sliding hole is provided on the vertical plane of the right-angle notch, and one end of the limiting post is slidably assembled in the telescopic sliding hole.

[0010] Furthermore, the mounting bracket has a limiting through hole, and the limiting post slides through the limiting through hole.

[0011] Furthermore, the diameter of the limiting baffle is larger than that of the limiting through hole.

[0012] Furthermore, an anti-detachment stop is also provided at the outer end of the limiting post.

[0013] Furthermore, screw holes are provided on the vertical plane of the right-angle notch, and corresponding assembly holes are provided on both sides of the mounting bracket. The mounting bracket is assembled and fixed by screws passing through the assembly holes and screw holes.

[0014] Furthermore, the slot is shaped like a waist hole.

[0015] Furthermore, the bottom end of the second tube is spherical.

[0016] By adopting the above technical solution, this utility model has the following beneficial effects:

[0017] 1. This utility model, through the design of a groove at the lower part of the first tube and a bracket and elastically assembled limiting post at the lower end of the second tube, allows the limiting post to be pressed before the second tube is inserted into the first tube. When the limiting post reaches the groove position, it can automatically pop out under the return action of the spring, forming a locking limit. This, together with the groove limit, can prevent the second tube from falling out of the first tube. Thus, there is no need for manual locking, which can be used in some scenarios where manual operation is inconvenient. The operation and assembly are more convenient and quick, saving time and effort.

[0018] 2. This utility model uses the automatic rebound and slotting of the limiting post to form a locking limit. This design makes the locking response quick and fast, and it can be successful in one go. There is no need to repeat the locking operation, which saves time and effort.

[0019] 3. This utility model uses the limiting post and the upper and lower positions of the slot to form a restriction, and adds an anti-slip stop to prevent the limiting post from slipping out. It can effectively withstand axial tensile force and is reliable in preventing slippage.

[0020] 4. The automatic spring-loaded structure of this utility model is installed by opening a right-angle notch, which saves volume and space. It is not only suitable for scenarios where manual operation is inconvenient, but also for situations such as narrow spaces and interference parts, and has a wide range of applications. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0022] Figure 2This is a partial enlarged structural schematic diagram of an embodiment of the present utility model;

[0023] Figure 3 This is an exploded view of the structure of an embodiment of the present utility model;

[0024] Figure 4 This is a partially enlarged schematic diagram of the bottom end of the second pipe in an embodiment of this utility model;

[0025] Figure 5 This is a schematic diagram of the structure of the limiting post according to an embodiment of the present invention;

[0026] Figure 6 This is a schematic diagram of the structure of the mounting bracket in an embodiment of the present utility model;

[0027] Figure 7 This is a usage state diagram of an embodiment of the present utility model;

[0028] Among them, 1. First tube material; 10. Groove; 2. Second tube material; 20. Right angle notch; 201. Telescopic sliding hole; 202. Screw hole; 3. Mounting bracket; 301. Limiting through hole; 302. Assembly hole; 4. Limiting post; 41. Limiting baffle; 42. Anti-detachment stop; 5. Spring; 6. Locking component; 7. Seat cushion; Detailed Implementation

[0029] To make the contents of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0030] like Figure 1-6 As shown, in this embodiment, a spring-loaded anti-detachment tubular structure is provided, which mainly consists of a first tube 1, a second tube 2, and an automatic rebound component. The second tube 2 is telescopically assembled inside the first tube 1. To prevent detachment, a slot 10 is provided on the lower side wall of the first tube 1. A mounting bracket 3 is provided at the lower end of the second tube 2. A limiting post 4 that can slide laterally is elastically mounted on the mounting bracket 3. When the limiting post 4 returns to its original position, it is limited by the mounting bracket 3.

[0031] Specifically, in this embodiment, a right-angled notch 20 is formed at the bottom end of the second pipe 2. The mounting bracket 3 is convex and is horizontally mounted on the vertical plane of the right-angled notch 20. The limiting post 4 slides through the mounting bracket 3 and has a limiting baffle 41 formed in the middle. The limiting baffle 41 fits and limits the inner wall of the mounting bracket 3, thus limiting the return of the limiting post 4. A spring 5 is also provided between the limiting baffle 41 and the vertical plane of the right-angled notch 20, and the spring 5 is sleeved on the limiting post 4. At the same time, an anti-slip stop 42 is formed at the outer end of the limiting post 4 to prevent the limiting post 4 from slipping out. It can effectively withstand axial tension and is reliable in preventing slippage.

[0032] refer to Figure 1-7 As shown, with Figure 7 Taking the usage state as an example, the first tube 1 is the bicycle's center tube, and the second tube 2 is the bicycle's seat post, with the seat cushion 7 installed on the seat post. Before assembly, press the anti-slip stop 42 of the limiting post 4 to retract the limiting post 4 and compress the spring 5. Then, press the second tube 2 down and insert it into the first tube 1. When the limiting post 4 reaches the slot 10 position, under the return action of the spring 5, the limiting post 4 will automatically spring back and form an upper and lower limit with the slot 10. The limiting stop 41 ensures the springback position of the limiting post 4. Finally, the two tubes are locked together by the locking piece 6. This prevents the second tube 2 from falling out of the first tube 1 during adjustment and also prevents damage caused by compressing the seat cushion 7. This eliminates the need for manual locking and can be used in scenarios where manual operation is inconvenient. The operation and assembly are more convenient and quick, saving time and effort. Furthermore, the automatic rebound of the limiting post 4 and the slot 10 form a locking limit, which ensures a rapid and quick locking response, achieving success on the first attempt without the need for repeated locking operations, saving time and effort. The automatic rebound structure is installed through a right-angle notch 20, saving volume and space. This design is suitable not only for scenarios where manual operation is inconvenient but also for confined spaces and situations involving interfering components, making it widely applicable.

[0033] To ensure the sliding stability of the limiting post 4, a telescopic sliding hole 201 is provided on the vertical plane of the right-angle notch 20 in this embodiment. One end of the limiting post 4 is slidably fitted into the telescopic sliding hole 201, and a limiting through hole 301 is provided on the mounting bracket 3, through which the limiting post 4 slidably passes. At the same time, the diameter of the limiting baffle 41 is larger than that of the limiting through hole 301 to ensure that the limiting baffle 41 limits the rebound of the limiting post 4.

[0034] Specifically, to facilitate disassembly and assembly, screw holes 202 are provided on the vertical plane of the right-angle notch 20 in this embodiment, and corresponding assembly holes 302 are provided on both sides of the mounting bracket 3. The mounting bracket 3 is assembled and fixed with the screw holes 202 by screws passing through the assembly holes 302.

[0035] In addition, to facilitate the second tube 2 in maintaining its orientation when adjusted to the upper and lower limits, the slot 10 in this embodiment is designed as a waist-shaped hole. Furthermore, to facilitate the insertion of the second tube 2, the bottom end of the second tube 2 is designed as a spherical shape.

[0036] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0037] The above specific embodiments further illustrate the technical problems, technical solutions, and beneficial effects of this utility model. It should be understood that the above descriptions are merely specific embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A spring-loaded anti-detachment tubular structure, characterized in that: Includes a first tube (1) and a second tube (2) telescopically assembled inside the first tube (1); The first pipe (1) has a groove (10) on its lower side wall, and the second pipe (2) has an installation bracket (3) at its lower end. The installation bracket (3) is elastically fitted with a limiting post (4) that can slide laterally. When the limiting post (4) returns to its original position, it is limited by the installation bracket (3). Pressing the limiting post (4) allows the second tube (2) to be inserted into the first tube (1). When the limiting post (4) reaches the slot (10) position, it can automatically spring back and form upper and lower limits.

2. The spring-loaded anti-detachment tubular structure according to claim 1, characterized in that: The second tube (2) has a right-angle notch (20) formed at the bottom end. The mounting bracket (3) is horizontally assembled on the vertical plane of the right-angle notch (20). The limiting post (4) slides through the mounting bracket (3) and a limiting baffle (41) is provided in the middle. The limiting baffle (41) and the inner wall of the mounting bracket (3) form a close-fitting limiting. A spring (5) is also provided between the limiting baffle (41) and the vertical plane of the right-angle notch (20) and sleeved on the limiting post (4).

3. The spring-loaded anti-detachment tubular structure according to claim 2, characterized in that: A telescopic sliding hole (201) is provided on the vertical plane of the right-angle notch (20), and one end of the limiting post (4) is slidably assembled in the telescopic sliding hole (201).

4. The spring-loaded anti-detachment tubular structure according to claim 2, characterized in that: The mounting bracket (3) has a limiting through hole (301), and the limiting post (4) slides through the limiting through hole (301).

5. The spring-loaded anti-detachment tubular structure according to claim 4, characterized in that: The diameter of the limiting baffle (41) is larger than that of the limiting through hole (301).

6. The spring-loaded anti-detachment tubular structure according to claim 1, characterized in that: The outer end of the limiting post (4) is also provided with an anti-detachment stop (42).

7. A spring-loaded anti-detachment tubular structure according to claim 2, characterized in that: The right-angle notch (20) has a screw hole (202) on its vertical plane, and the mounting bracket (3) has corresponding assembly holes (302) on both sides. The mounting bracket (3) is assembled and fixed with the screw hole (202) by screws passing through the assembly hole (302).

8. The spring-loaded anti-detachment tubular structure according to claim 1, characterized in that: The slot (10) is shaped like a waist hole.

9. The spring-loaded anti-detachment tubular structure according to claim 1, characterized in that: The bottom end of the second pipe (2) is spherical.

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