Stud fixing device for thin-wall part

By designing a stud fixing device that matches irregular grooves and protrusions, the problem of stable connection of thin-walled parts in seamless splicing or space-constrained situations is solved, achieving efficient and stable connection effect, improving installation efficiency and the durability of parts.

CN223511262UActive Publication Date: 2025-11-04SHAANXI GREEN ENERGY ELECTRONIC TECH CO LTD
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Patent Information

Application Number
CN202423216350.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-25
Publication Date
2025-11-04
Estimated Expiration
2034-12-25

AI Technical Summary

Technical Problem

In the present technology, thin-walled plastic parts are difficult to connect securely when faced with seamless splicing or limited space. Traditional screw fixing methods cannot meet the installation requirements and may result in unstable connections, leave marks, and be difficult to adapt to different installation conditions.

Method used

A stud fixing device is designed, which adopts a structure of irregular groove and irregular protrusion. The upper cover and the lower cover are connected by stud and nut. The irregular protrusion is embedded in the irregular groove to ensure stability. It is suitable for thin-walled parts of various shapes and sizes.

Benefits of technology

It improves installation efficiency and accuracy, enhances connection strength, reduces loosening or misalignment issues, simplifies the installation process, and improves the durability and service life of thin-walled components.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a stud fixing device for a thin-wall part, and belongs to the technical field of structural design of connecting pieces. Comprising a connecting piece and a fixing piece, an upper cover connecting block is arranged on the upper cover, and a lower cover connecting block is oppositely arranged on the lower cover; a special-shaped groove is formed in the lower side of the upper cover connecting block; a special-shaped protrusion matched with the special-shaped groove is arranged on the upper side of the fixing piece. Connecting holes matched with the connecting pieces are formed in the wall surface of the lower cover, the fixing pieces and the lower cover connecting blocks; the special-shaped protrusion of the fixing piece is upwards placed between the inner wall of the lower cover and the lower cover connecting block, the upper cover is placed at the corresponding position, the connecting piece sequentially penetrates through the wall face of the lower cover, the fixing piece and the connecting hole in the lower cover connecting block, and the connecting piece drives the fixing piece to move when rotating. Damage caused by uneven stress or vibration and the like in the using process of the thin-wall part is effectively reduced.
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Description

Technical Field

[0001] This utility model belongs to the technical field of connector structure design, and relates to a stud fixing device for thin-walled parts. Background Technology

[0002] In today's manufacturing environment, with consumers demanding increasing levels of functionality, aesthetics, and durability from their products, every detail in the product design and manufacturing process becomes paramount. Plastic parts, as key components in many products, are directly affected by their installation methods, impacting overall product performance, assembly efficiency, and the end-user experience. Traditionally, thin-walled plastic parts have relied on stacked screws for fastening. While effective in most cases, this method falls short when faced with specific installation requirements, such as seamless joints or situations with limited space (e.g., where direct contact with the back and interior is not possible for fixation).

[0003] Seamless splicing is a key trend in modern product design, requiring components to fit tightly together without additional gaps or connectors, resulting in a smoother, more aesthetically pleasing appearance while reducing assembly errors and complexity. However, this installation method places higher demands on the strength and concealment of fasteners. Traditional screw fastening often leaves noticeable marks on the surface of parts and struggles to guarantee sufficient connection strength, especially under dynamic loads or environmental stresses. Furthermore, traditional fastening methods face significant challenges when the front and back of plastic components cannot be directly fitted with fasteners due to design or space limitations. In such cases, finding a solution that can flexibly adapt to different installation conditions while ensuring connection strength becomes particularly urgent. Utility Model Content

[0004] The purpose of this invention is to solve the technical problem that the connectors of thin-walled plastic parts cannot meet the installation requirements when facing some special installation needs, and to provide a stud fixing device for thin-walled parts.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] In a first aspect, this utility model discloses a stud fixing device for thin-walled parts, including a connector and a fixing member; an upper cover connecting block is provided on the upper cover, and a lower cover connecting block is provided opposite to it on the lower cover; a shaped groove is provided on the lower side of the upper cover connecting block; a shaped protrusion that mates with the shaped groove is provided on the upper side of the fixing member; connecting holes that mate with the connector are provided on the wall surface of the lower cover, the fixing member, and the lower cover connecting block;

[0007] During installation, place the irregular protrusion of the fastener facing upward between the inner wall of the lower cover and the lower cover connecting block, place the upper cover in the corresponding position, and pass the connector through the wall of the lower cover, the fastener, and the connecting hole on the lower cover connecting block in sequence. When the connector rotates, it drives the fastener to move, so that the irregular protrusion on it is embedded in the irregular groove on the upper cover connecting block, thus connecting the upper cover and the lower cover together.

[0008] Further improvements are made in the following aspects:

[0009] The connector is a stud.

[0010] The stud passes through the lower cover connecting block and is connected to a nut.

[0011] The top cover and the top cover connecting block are integrally formed.

[0012] The lower cover and the lower cover connecting block are integrally formed.

[0013] The irregular protrusions are T-shaped protrusions, U-shaped protrusions, V-shaped protrusions, or dovetail protrusions.

[0014] The connecting block is made of plastic.

[0015] The stud is a high-strength stud.

[0016] The upper cover is provided with upper cover connecting blocks on both sides, and the lower cover is provided with lower cover connecting blocks on both sides.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] This utility model discloses a stud fixing device for thin-walled parts. Through a uniquely designed structure of irregularly shaped grooves and protrusions, the device ensures a tight and stable connection between the upper and lower covers during installation. The process of the irregularly shaped protrusions embedding into the irregularly shaped grooves not only enhances the strength of the connection but also improves installation efficiency and accuracy, avoiding loosening or misalignment problems that may occur in traditional connection methods. The connector design allows it to rotate during installation, thereby moving the fixing component and enabling the irregularly shaped protrusions to smoothly embed into the irregularly shaped grooves. This design makes the device applicable to thin-walled parts of various shapes and sizes, improving its versatility and flexibility. Compared to traditional fixing methods, the installation process of this device is simpler and faster. The user only needs to place the irregularly shaped protrusion of the fixing component upwards between the inner wall of the lower cover and the lower cover connecting block, then place the upper cover and fix it using the connector. This design greatly reduces installation time and labor costs, improving work efficiency. Because the device uses a tight and stable connection method, it can effectively reduce damage to thin-walled parts caused by uneven stress or vibration during use. This helps improve the durability and lifespan of components, and reduces maintenance and replacement costs. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the installation of the stud fixing device in this utility model;

[0021] Figure 2 This is a front view of the installation of the stud fixing device in this utility model.

[0022] Wherein: 1-Top cover; 2-Top cover connecting block; 3-Fixing component; 4-Lower cover; 5-Lower cover connecting block; 6-Stud; 7-Nut. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, 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. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0024] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0025] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0026] In the description of the embodiments of this utility model, it should be noted that if terms such as "upper," "lower," "horizontal," or "inner" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use, they are only for the convenience of describing the utility model 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, and therefore should not be construed as a limitation on the utility model. Furthermore, terms such as "first" and "second" are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0027] Furthermore, the use of the term "horizontal" does not imply that the component must be absolutely horizontal, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0028] In the description of the embodiments of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0029] The present invention will now be described in further detail with reference to the accompanying drawings:

[0030] See Figure 1 and Figure 2This utility model discloses a stud fixing device for thin-walled parts, including a connector and a fixing member 3; an upper cover 1 is provided with an upper cover connecting block 2, and a lower cover 4 is provided with a lower cover connecting block 5 opposite to it; the lower side of the upper cover connecting block 2 is provided with a shaped groove; the upper side of the fixing member 3 is provided with a shaped protrusion that mates with the shaped groove; the wall surface of the lower cover 4, the fixing member 3, and the lower cover connecting block 5 are all provided with connecting holes that mate with the connector; during installation, the shaped protrusion of the fixing member 3 is placed upwards between the inner wall of the lower cover 4 and the lower cover connecting block 5, the upper cover 1 is placed in the corresponding position, and the connector is passed through the connecting holes on the wall surface of the lower cover 4, the fixing member 3, and the lower cover connecting block 5 in sequence. When the connector rotates, it drives the fixing member 3 to move, so that the shaped protrusion on it is embedded in the shaped groove on the upper cover connecting block 2, connecting the upper cover 1 and the lower cover 4 together. The connector is a stud 6. The stud 6 passes through the lower cover connecting block 5 and is connected to a nut 7. The upper cover 1 and the upper cover connecting block 2 are integrally formed. The lower cover 4 and the lower cover connecting block 5 are integrally formed. The irregular protrusion is a dovetail protrusion. The connecting block 3 is made of plastic. The stud 6 is a high-strength stud. Upper cover connecting blocks 2 are provided on both sides of the upper cover 1, and lower cover connecting blocks 5 are provided on both sides of the lower cover 4.

[0031] Example 2

[0032] The difference between Embodiment 1 and Embodiment 2 is that the irregular protrusion is a T-shaped protrusion, a U-shaped protrusion, or a V-shaped protrusion.

[0033] This utility model discloses a stud fixing device for thin-walled parts. Through a uniquely designed structure of irregularly shaped grooves and protrusions, the device ensures a tight and stable connection between the upper and lower covers during installation. The process of the irregularly shaped protrusions embedding into the irregularly shaped grooves not only enhances the strength of the connection but also improves installation efficiency and accuracy, avoiding loosening or misalignment problems that may occur in traditional connection methods. The connector design allows it to rotate during installation, thereby moving the fixing component and enabling the irregularly shaped protrusions to smoothly embed into the irregularly shaped grooves. This design makes the device applicable to thin-walled parts of various shapes and sizes, improving its versatility and flexibility. Compared to traditional fixing methods, the installation process of this device is simpler and faster. The user only needs to place the irregularly shaped protrusion of the fixing component upwards between the inner wall of the lower cover and the lower cover connecting block, then place the upper cover and fix it using the connector. This design greatly reduces installation time and labor costs, improving work efficiency. Because the device uses a tight and stable connection method, it can effectively reduce damage to thin-walled parts caused by uneven stress or vibration during use. This helps improve the durability and lifespan of components, and reduces maintenance and replacement costs.

[0034] The working process of this utility model is as follows:

[0035] This utility model relates to a highly efficient and stable stud fixing device specifically designed for thin-walled components. This device aims to solve problems such as easy deformation and unstable connection of thin-walled components during installation. Through innovative structural design, this device not only ensures a tight connection between components but also greatly simplifies the installation process and improves work efficiency. Specifically, the core components of this fixing device include an upper cover 1 and a lower cover 4, which are stably connected by a clever connection mechanism. The top of the upper cover 1 integrates an upper cover connecting block 2, while the corresponding position of the lower cover 4 is provided with a lower cover connecting block 5. This design not only enhances the stability of the structure but also provides a reliable support point for subsequent fixing operations. Particularly noteworthy is the carefully designed irregular groove on the lower side of the upper cover connecting block 2, a unique design intended to perfectly match the irregular protrusion on the fixing component 3. As a key component connecting the upper and lower covers, the shape of the irregular protrusion on the upper side of the fixing component 3 matches the irregular groove of the upper cover connecting block 2, ensuring accurate positioning and locking during installation. During installation, the irregularly shaped protrusion of the fixing component 3 is first placed with its upward-facing end between the inner wall of the lower cover 4 and the lower cover connecting block 5. Then, the upper cover 1 is accurately placed in the predetermined position, ensuring that the upper cover connecting block 2 and the irregularly shaped protrusion of the fixing component 3 are in a ready-to-connect state. At this point, the connector is used to sequentially pass through the connecting holes on the wall of the lower cover 4, the fixing component 3, and the lower cover connecting block 5. As the connector rotates and advances, the fixing component 3 is moved until its irregularly shaped protrusion is completely embedded in the irregularly shaped groove of the upper cover connecting block 2, thus achieving a tight connection between the upper cover 1 and the lower cover 4. Furthermore, this device also demonstrates ingenuity in its detailed design. For example, the connector uses a high-strength stud 6, and a nut 7 is connected after the stud passes through the lower cover connecting block 5 to further enhance the stability of the connection. The upper cover 1 and upper cover connecting block 2, and the lower cover 4 and lower cover connecting block 5, all adopt an integral molding structure, which not only improves the overall structural strength and stability but also simplifies the manufacturing process and reduces costs.

[0036] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A stud fixing device for thin-walled parts, characterized in that, Includes connectors and fasteners (3); an upper cover connecting block (2) is provided on the upper cover (1), and a lower cover connecting block (5) is provided on the lower cover (4); a shaped groove is provided on the lower side of the upper cover connecting block (2); a shaped protrusion that matches the shaped groove is provided on the upper side of the fastener (3); connecting holes that match the connectors are provided on the wall of the lower cover (4), the fastener (3), and the lower cover connecting block (5); During installation, the irregular protrusion of the fixing member (3) is placed facing upward between the inner wall of the lower cover (4) and the lower cover connecting block (5). The upper cover (1) is placed in the corresponding position. The connecting member is passed through the wall of the lower cover (4), the fixing member (3), and the connecting hole on the lower cover connecting block (5) in sequence. When the connecting member rotates, it drives the fixing member (3) to move, so that the irregular protrusion on it is embedded in the irregular groove on the upper cover connecting block (2), and the upper cover (1) and the lower cover (4) are connected together.

2. The stud fixing device for thin-walled parts according to claim 1, characterized in that, The connector is a stud (6).

3. The stud fixing device for thin-walled parts according to claim 2, characterized in that, The stud (6) passes through the lower cover connecting block (5) and is connected to a nut (7).

4. The stud fixing device for thin-walled parts according to claim 1, characterized in that, The upper cover (1) and the upper cover connecting block (2) are integrally formed.

5. The stud fixing device for thin-walled parts according to claim 1, characterized in that, The lower cover (4) and the lower cover connecting block (5) are integrally formed.

6. The stud fixing device for thin-walled parts according to claim 1, characterized in that, The irregular protrusions are T-shaped protrusions, U-shaped protrusions, V-shaped protrusions, or dovetail protrusions.

7. The stud fixing device for thin-walled parts according to claim 1, characterized in that, The fastener (3) is made of plastic.

8. The stud fixing device for thin-walled parts according to claim 1, characterized in that, The stud (6) is a high-strength stud.

9. The stud fixing device for thin-walled parts according to claim 1, characterized in that, The upper cover (1) is provided with upper cover connecting blocks (2) on both sides, and the lower cover (4) is provided with lower cover connecting blocks (5) on both sides.