A type of bamboo-shaped screw with a cap

By designing a bamboo-shaped screw with a cap, the problems of screw length adaptability and aesthetics were solved, enabling flexible length adjustment and efficient installation stability, while also improving the product's protective and aesthetic performance.

CN224433069UActive Publication Date: 2026-06-30广东顶固集创家居股份有限公司

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
广东顶固集创家居股份有限公司
Filing Date
2025-05-23
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

The fixed length design of existing screws limits installation scenarios, requires a large inventory of screws of different specifications, and the exposed screw ends affect the product's aesthetics.

Method used

The design of the capped bamboo screw, with its alternating threaded and unthreaded sections, allows for precise cutting. The combination of the nut and cap design enhances both length adaptability and aesthetics. Torque is transmitted via an adapter post, and the cap achieves self-locking through the connecting pin and the nut's connecting groove.

Benefits of technology

It improves installation compatibility, reduces inventory specifications, enhances installation stability, and improves product aesthetics and protective effect through the protective cap.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224433069U_ABST
    Figure CN224433069U_ABST
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Abstract

A capped bamboo-joint screw includes a screw body with a set of threaded grooves and a set of unthreaded areas on its outer surface. An adapter post is connected to the left side of the screw body, and a nut is connected to the left side of the adapter post. This device utilizes the alternating distribution of threaded grooves and unthreaded areas. When adjusting the screw length, the user can use pipe wrenches or wire cutters to clamp the unthreaded area and precisely cut it off along a preset break point. The threaded grooves remain intact after cutting, not affecting subsequent threaded connections with nuts or installation components, greatly expanding the length adaptability range and reducing the need for stock specifications. Simultaneously, the Phillips head groove on the left side of the nut, in conjunction with the adapter post, ensures that torque is effectively transmitted to the threaded section when tightening the screw with tools, enhancing installation stability. Furthermore, the integrated metal cap design makes this product aesthetically pleasing and provides excellent protection.
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Description

Technical Field

[0001] This utility model relates to the field of screws, and in particular to bamboo-joint screws with caps. Background Technology

[0002] Screws are indispensable industrial necessities in daily life: tiny screws are used in cameras, eyeglasses, clocks, and electronics; general screws are used in televisions, electrical appliances, musical instruments, and furniture; large screws and nuts are used in engineering, construction, and bridges; and various sizes of screws are used in transportation equipment, airplanes, trams, and automobiles. Screws play a vital role in industry, and as long as industry exists on Earth, the function of screws will always be important. Screws are a common invention of human production and life over thousands of years, and in terms of their application fields and scope, they are humankind's greatest invention.

[0003] The current common screw structure has limitations, which restricts its effectiveness in modern assembly applications. The current mainstream screw products adopt a fixed-length integrated design. In terms of specification adaptability, the fixed-length design limits the installation scenarios. In order to meet diverse assembly needs, users have to keep a large inventory of screws of different specifications. At the same time, in terms of product aesthetics, the exposed screw ends seriously affect the appearance quality of the product, especially in fields with strict surface treatment requirements such as high-end furniture and precision instruments.

[0004] Therefore, it is necessary to provide an improved bamboo screw with a cap to overcome the above-mentioned defects of the prior art. Utility Model Content

[0005] The purpose of this utility model is to solve the above-mentioned problems and provide a bamboo-joint screw with a cover.

[0006] To achieve the objectives of this utility model, the following technical solution is adopted:

[0007] A capped bamboo screw includes: a bamboo screw body, wherein a set of threaded grooves are formed on the outer surface of the bamboo screw body, and a set of unthreaded areas are formed on the outer surface of the bamboo screw body.

[0008] Preferably, an adapter post is connected to the left side of the bamboo-joint screw body.

[0009] Preferably, a nut is connected to the left side of the adapter post, and a cap is provided on the left side of the nut.

[0010] Preferably, a connecting pin is connected to the right side of the cap, and a reserved groove is provided inside the connecting pin.

[0011] Preferably, the thread grooves in the bamboo-joint screw body have the same spacing across multiple segments.

[0012] Preferably, in the bamboo-joint screw body, the non-threaded areas are spaced at the same intervals and are staggered with the threaded grooves.

[0013] Preferably, the nut has a cross-shaped groove on its left side.

[0014] Preferably, the cross-section of the unthreaded region is circular.

[0015] Preferably, the left side of the nut has a connecting groove.

[0016] Preferably, the cap is connected to the nut via a connecting pin and a connecting groove.

[0017] Compared with the prior art, the advantages of this utility model are as follows:

[0018] In this invention, the threaded grooves and unthreaded areas are alternately distributed. When the screw length needs to be adjusted, the user can use pipe wrenches or wire cutters to clamp the unthreaded area and apply force along the preset break point to precisely cut it off. After cutting, the threaded groove remains intact and does not affect the subsequent threaded connection with the nut or installation component, greatly improving installation adaptability and significantly expanding the length adaptation range. The requirement for inventory specifications can also be greatly reduced. At the same time, the cross groove on the left side of the nut, together with the adapter post, ensures that the torque is effectively transmitted to the threaded section when tightening the screw with tools, enhancing the stability of the installation. Meanwhile, the integrated metal cap design makes this product aesthetically pleasing and provides outstanding protection. In terms of protection and maintenance, the cap cooperates with the connecting groove of the nut through the connecting pin, and achieves self-locking by relying on the elastic deformation of the reserved groove. This not only prevents dust and impurities from entering the cross groove of the nut, protecting the screw connection part, but also allows for easy disassembly by simply prying open the edge gap of the cap during later maintenance, making the operation simple and quick.

[0019] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and will become apparent from the description or may be learned by practice of the invention. Attached Figure Description

[0020] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, in which:

[0021] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the bamboo-joint screw with a cap.

[0022] Figure 2 This is a three-dimensional structural diagram of the cap in a bamboo-joint screw with a cover.

[0023] Figure 3 This is a front view of the main body of the bamboo joint screw in the capped bamboo joint screw.

[0024] Figure 4This is a top view of the main body of the bamboo joint screw in the capped bamboo joint screw. Detailed Implementation

[0025] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model and should not be construed as limiting this utility model.

[0026] Those skilled in the art will understand that, unless specifically stated otherwise, the singular forms “a,” “an,” “the,” and “the” used herein may also include the plural forms. It should be further understood that the term “comprising” as used in this specification means the presence of the stated features, integers, steps, operations, elements, and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, and / or components, nor does it exclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof. It should be understood that when we say an element is “connected” or “coupled” to another element, it can be directly connected or coupled to the other element, or there may be intermediate elements. Furthermore, “connected” or “coupled” as used herein can include wireless connection or wireless coupling. The term “and / or” as used herein includes all or any unit and all combinations of one or more associated listed items.

[0027] It will be understood by those skilled in the art that, unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. It should also be understood that terms such as those defined in general dictionaries should be understood to have the same meaning as in the context of the prior art, and should not be interpreted in an idealized or overly formal sense unless specifically defined as herein.

[0028] According to one embodiment of the present invention, in conjunction with Figure 1-4The capped bamboo-joint screw includes: a bamboo-joint screw body 1, with a set of threaded grooves 101 on the outer surface of the bamboo-joint screw body 1 and a set of unthreaded areas 102 on the outer surface of the bamboo-joint screw body 1. The unthreaded area 102 is clamped with pipe wrenches or wire cutters, and force is applied along a preset break point to achieve precise cutting. After cutting, the threaded grooves 101 remain intact and do not affect use. The cut screw is then inserted into the mounting hole, and a tool is used to engage the Phillips head groove of the nut 2 and rotate to tighten it. The adapter pin 103 ensures that the torque is effectively transmitted to the threaded section. Then, the connecting pin 203 is aligned... The connecting groove 201 applies axial pressure, causing the reserved groove 204 to undergo elastic deformation. When the connecting pin 203 is fully inserted, the elasticity returns to achieve self-locking, making the product aesthetically pleasing and providing outstanding protection. In terms of protection and maintenance, the cap 202 cooperates with the connecting groove 201 of the nut 2 through the connecting pin 203, and achieves self-locking by relying on the elastic deformation of the reserved groove 204. This not only prevents dust and impurities from entering the cross groove of the nut 2 and protects the screw connection, but also allows for easy disassembly during later maintenance by simply prying open the edge gap of the cap 202 with a pry tool, making the operation simple and quick.

[0029] The left side of the bamboo screw body 1 is connected to an adapter post 103. The adapter post 103 is designed to ensure that the torque is effectively transmitted to the thread section. The left side of the adapter post 103 is connected to a nut 2. The left side of the nut 2 is provided with a cap 202. The cap 202 improves the aesthetics and protective performance of the product. The right side of the cap 202 is connected to a connecting pin 203. The connecting pin 203 has a reserved groove 204 inside. The reserved groove 204 can achieve self-locking by elastic deformation, which can prevent dust and impurities from entering the cross groove of the nut 2. The multiple segments of the thread groove 101 in the bamboo screw body 1 are spaced at the same distance. The multiple segments of the non-threaded area 102 in the bamboo screw body 1 are spaced at the same distance and are staggered with the thread groove 101. Through the above structure, precise cutting can be achieved, and the thread groove 101 remains intact after cutting, without affecting the subsequent threaded connection with the nut or installation component.

[0030] The left side of the nut 2 has a cross groove. The nut 2 allows the operator to easily rotate the bamboo screw body 1. The cross-section of the unthreaded area 102 is circular. The left side of the nut 2 has a connecting groove 201. The cap 202 is connected to the nut 2 through the connecting pin 203 and the connecting groove 201. The cap 202 tightly covers the cross groove on the left side of the nut 2, forming a barrier that can effectively prevent dust and impurities from entering the groove and improve the appearance.

[0031] The working principle of this utility model is as follows: When in use, the target unthreaded area 102 is clamped with pipe wrenches or wire cutters, and force is applied along the preset break point to achieve precise cutting. After cutting, the threaded groove 101 remains intact and does not affect the use. Then, the cut screw is inserted into the mounting hole, and a tool is used to wedge it into the cross groove of the nut 2 and rotate it to tighten it. The adapter post 103 ensures that the torque is effectively transmitted to the threaded section. Then, the connecting pin 203 is aligned with the connecting groove 201, and axial pressure is applied to make the reserved groove 204 elastically deform. When the connecting pin 203 is fully inserted, the elasticity is restored to achieve self-locking. During later maintenance, a pry tool is inserted into the edge gap of the cap 202, and the connecting pin 203 is slightly pried to disengage from the connecting groove 201. The screw can be removed by rotating the nut 2 in the opposite direction.

[0032] Those skilled in the art will understand that the steps, measures, and solutions in the various operations, methods, and processes discussed in this application can be alternated, modified, combined, or deleted. Furthermore, other steps, measures, and solutions in the various operations, methods, and processes discussed in this application can also be alternated, modified, rearranged, decomposed, combined, or deleted. Furthermore, steps, measures, and solutions in the prior art that are similar to those disclosed in this application can also be alternated, modified, rearranged, decomposed, combined, or deleted.

[0033] The above description is only a partial embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A capped, split screw, comprising: The bamboo screw body (1) is characterized in that: a set of threaded grooves (101) are provided on the outer surface of the bamboo screw body (1), and a set of threadless areas (102) are provided on the outer surface of the bamboo screw body (1).

2. The capped split screw of claim 1, wherein: The left side of the bamboo screw body (1) is connected to an adapter post (103).

3. The capped split screw of claim 2, wherein: The left side of the adapter post (103) is connected to a nut (2), and the left side of the nut (2) is provided with a cap (202).

4. The capped split screw of claim 3, wherein: The right side of the cap (202) is connected to a connecting pin (203), and a reserved groove (204) is provided inside the connecting pin (203).

5. The capped split screw of claim 1, wherein: The thread groove (101) of the bamboo screw body (1) has multiple segments with the same spacing.

6. The capped split screw of claim 1, wherein: The non-threaded area (102) of the bamboo screw body (1) has multiple segments with the same spacing and is staggered with the threaded groove (101).

7. The capped split screw of claim 3, wherein: The nut (2) has a cross groove on its left side.

8. The capped split screw of claim 7, wherein: The cross-section of the unthreaded region (102) is circular.

9. The capped split screw of claim 3, wherein: The nut (2) has a connecting groove (201) on its left side.

10. The capped split screw of claim 8, wherein: The cap (202) is connected to the nut (2) via a connecting pin (203) and a connecting groove (201).