A screw-type anti-detachment tubular structure

Abstract

This utility model discloses a screw-type anti-detachment tubular structure, which includes a first tubular material and a second tubular material telescopically assembled within the first tubular material. The lower sidewall of the first tubular material has a groove, and the bottom end of the second tubular material has a right-angle notch. A limiting screw passing through the groove is provided on the vertical plane of the right-angle notch, and the limiting screw and the upper and lower edges of the groove form a limiting effect. This utility model has a simple structure, occupies less space, is easy and quick to assemble and disassemble, and has higher durability.

Description

Technical Field

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

[0002] Currently, in the field of two-wheeled vehicle technology, the center tube and seat tube or battery tube of the vehicle are generally connected by a sliding assembly and 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 use limiting blocks or fasteners, installed around the seat tube and center tube. This takes up considerable space and volume, is not conducive to the installation of other components, and may even cause interference. Furthermore, due to frequent shaking and friction, they are prone to wear and failure over time, and disassembly and replacement are not convenient. In addition, some anti-fall-off components require additional tools for installation, making the operation cumbersome and the assembly time-consuming and laborious. 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 screw-type anti-loosening tubular structure, which has a simple structure, occupies less space, is easy and quick to assemble and disassemble, and has higher durability.

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

[0005] A screw-type anti-detachment tubular structure, comprising a first tubular material and a second tubular material telescopically assembled within the first tubular material;

[0006] The first tube has a groove on its lower side wall, and the second tube has a right-angle notch formed at its bottom end. A limiting screw passing through the groove is provided on the vertical plane of the right-angle notch, and the limiting screw and the upper and lower edges of the groove form a limiting position.

[0007] Furthermore, a screw hole is provided on the vertical plane of the right-angle notch, and the limiting screw is locked and fixed in the screw hole.

[0008] Furthermore, the limiting screw has two flush parts.

[0009] Furthermore, the limiting screw is an internal hex screw.

[0010] Furthermore, the slot is shaped like a waist hole.

[0011] Furthermore, the bottom end of the second tube is spherical.

[0012] By adopting the above technical solution, this utility model has the following beneficial effects:

[0013] 1. This utility model features a groove at the bottom of the first tube and a limiting screw at the bottom of the second tube. The limiting screw can be positioned with the upper and lower edges of the groove to prevent the second tube from falling out of the first tube. At the same time, the limiting screw is inserted into the vertical plane of the right-angle notch at the bottom of the second tube. This design not only prevents the tube from falling out but also saves space and volume. The limiting screw only needs to have a small part of its head protruding to form a limiting and preventing falling out. This design is more conducive to the installation of other components and is less likely to cause interference.

[0014] 2. This utility model is installed on the vertical plane of the right-angle notch using limiting screws. It only requires tightening to secure it. The screws, along with the upper and lower edges of the notch, create a limiting effect, preventing the screws from falling off. This method is more durable, quicker and easier to install and remove, requires no additional tools, is simple to operate, and has a simple structure, saving costs.

[0015] 3. This utility model has a simple structure, small size and space occupation, and can be applied to vehicles with narrow spaces and closely spaced parts, with a wide range of applications. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0017] Figure 2 This is a partial enlarged structural schematic diagram of an embodiment of the present utility model;

[0018] Figure 3 This is an exploded view of the structure of an embodiment of the present utility model;

[0019] Figure 4 This is a partially enlarged schematic diagram of the bottom end of the second pipe in an embodiment of this utility model;

[0020] Figure 5 This is a usage state diagram of an embodiment of the present utility model;

[0021] Among them, 1. First tube material; 10. Groove; 2. Second tube material; 20. Right angle notch; 200. Screw hole; 3. Limit screw; 4. Locking component; 5. Seat pad; Detailed Implementation

[0022] To make the content 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.

[0023] like Figure 1-4As shown, in this embodiment, a screw-type anti-detachment tubular structure is provided, which mainly consists of a first tube 1, a second tube 2, and a limiting screw 3. 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, and a limiting screw 3 is horizontally arranged at the bottom end of the second tube 2, with the limiting screw 3 and the upper and lower edges of the slot 10 forming a limiting mechanism.

[0024] In order to save space, a right-angle notch 20 is formed at the bottom of the second tube 2 in this embodiment. The limiting screw 3 is horizontally installed on the vertical plane of the right-angle notch 20 and passes through the slot 10. The head of the limiting screw 3 forms a limit with the upper and lower edges of the slot 10.

[0025] Specifically, two screw holes 200 are made on the vertical plane of the right-angle notch 20. Two limit screws 3 are provided and locked in the two screw holes 200 respectively, and the two limit screws 3 are kept flush. The limit screws 3 are internal hex screws, which makes the assembly more convenient and simple.

[0026] refer to Figure 1-5 As shown, with Figure 5 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 5 installed on the seat post. During assembly, first press the second tube 2 down and insert it into the first tube 1. When the right-angle notch 20 at the bottom of the second tube 2 reaches the slot 10, tighten the two limiting screws 3 into the two screw holes 200, and then lock the two tubes together using the locking piece 4. This prevents the second tube 2 from falling out of the first tube 1 during adjustment and also prevents damage when compressing the seat cushion 5.

[0027] In the above design, the limiting screw 3, located at the bottom of the first tube 1 (grooved at the bottom) and the bottom of the second tube 2, forms a limiting position with the upper and lower edges of the groove 10, thus preventing the second tube 2 from falling out of the first tube 1. Simultaneously, the limiting screw 3 is inserted into the vertical plane of the right-angle notch 20 at the bottom of the second tube 2, ensuring both anti-fall-off protection and saving space and volume. Only a small portion of the head of the limiting screw 3 protrudes to form the limiting and anti-fall-off function, which is more conducive to the installation of other components and less prone to interference, thus having a wide range of applications. Furthermore, installing the limiting screw 3 on the vertical plane of the right-angle notch 20 only requires tightening for fixation. By forming a limiting position with the upper and lower edges of the groove 10, the anti-fall-off function is achieved. This method is more durable, quicker and easier to install and remove, requires no other auxiliary tools, is simple to operate, and has a simple structure, saving costs.

[0028] 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.

[0029] 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.

[0030] 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 screw-type anti-drop tubular structure, characterized by: Includes a first tube (1) and a second tube (2) telescopically assembled inside the first tube (1); The first tube (1) has a groove (10) on its lower side wall, and the second tube (2) has a right-angle notch (20) formed at its bottom end. A limiting screw (3) passing through the groove (10) is provided on the vertical plane of the right-angle notch (20), and the limiting screw (3) and the upper and lower edges of the groove (10) form a limiting.

2. A screw-type anti-drop tubular structure according to claim 1, characterized in that: A screw hole (200) is provided on the vertical plane of the right-angle notch (20), and the limiting screw (3) is locked and fixed in the screw hole (200).

3. The screw-type anti-loosening tubular structure according to claim 2, characterized in that: The limiting screw (3) has two flush parts.

4. The screw-type anti-loosening tubular structure according to claim 1, characterized in that: The limiting screw (3) is an internal hex screw.

5. The screw-type anti-loosening tubular structure according to claim 1, characterized in that: The slot (10) is shaped like a waist hole.

6. The screw-type anti-loosening tubular structure according to claim 1, characterized in that: The bottom end of the second pipe (2) is spherical.

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