Fastener with anti-scratching function

By incorporating protective components and a highly elastic metal sheet into the fastener, the problem of the fastener scratching items is solved, achieving scratch resistance and a stable connection, thus improving the fastener's protection and service life.

CN224234835UActive Publication Date: 2026-05-15FUJIAN QUANZHOU JIANWEI LUGGAGE ACCESSORIES CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
FUJIAN QUANZHOU JIANWEI LUGGAGE ACCESSORIES CO LTD
Filing Date
2025-07-24
Publication Date
2026-05-15

AI Technical Summary

Technical Problem

Existing fasteners have a simple structure, and their edges and corners come into direct contact with the object, which can easily scratch the surface of the object. At the same time, the surface of the fastener itself is also easily damaged.

Method used

A scratch-resistant fastener was designed, comprising a housing, adjusting block, rotating shaft, metal sheet, locking block, limiting plate, and protective components. In particular, the housing and limiting plate are protected by first and second soft silicone sleeves to prevent the edges and corners from directly contacting the object. The locking block is held by a highly elastic metal sheet, and the metal sheet is supported by a threaded block to ensure stability.

Benefits of technology

It effectively prevents the fastener from scratching other equipment or causing damage to itself, extends its service life, improves user comfort and stability, and enhances the protective effect and durability of the fastener.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model is applicable to the technical field of fasteners, and provides a fastener with an anti-scratch function, which comprises a shell, the multiple adjusting blocks are installed on the inner wall of the top and the inner wall of the bottom of the shell in a sliding mode correspondingly; the plurality of rotating shafts are rotationally mounted on the plurality of adjusting blocks respectively; the two metal sheets are respectively fixed among the plurality of rotating shafts; and the clamping block is clamped between the two metal sheets, and a limiting plate is installed on the side, away from the shell, of the clamping block. According to the scheme, the buckle with the anti-scratching function is high in protection effect, external friction damage to the buckle can be reduced, the service life is long, meanwhile, equipment capable of making contact with the buckle can be protected, and scratching is effectively prevented.
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Description

Technical Field

[0001] This utility model belongs to the field of fastener technology, and in particular relates to a fastener with anti-scratch function. Background Technology

[0002] Buckles are small mechanical devices used to connect or secure two objects. They are widely used in daily life, playing an important role in everything from clothing and footwear accessories to connecting parts for electronic devices. Depending on their function and material, buckles can be divided into various types, such as snap buckles, D-ring buckles, and ladder buckles. These buckles are used in backpacks, bags, electronic devices, and many other applications.

[0003] The existing fastener structure is relatively simple, and the fastener does not have a protective structure. The edges and corners come into direct contact with the object, which can easily scratch the surface of the object. At the same time, the surface of the fastener is also easily damaged. Utility Model Content

[0004] This utility model provides a buckle with anti-scratch function, which aims to solve the problem mentioned in the background art that the buckle does not have a protective structure and the edges and corners are in direct contact with the item, making it easy to scratch the surface of the item.

[0005] To solve the above problems, this utility model is implemented as follows: a fastener with anti-scratch function, comprising: a housing; multiple adjusting blocks, the multiple adjusting blocks being slidably mounted on the top inner wall and bottom inner wall of the housing respectively; multiple rotating shafts, the multiple rotating shafts being rotatably mounted on the multiple adjusting blocks respectively; two metal plates, the two metal plates being fixed between the multiple rotating shafts respectively; a locking block, the locking block being locked between the two metal plates, and a limiting plate being installed on the side of the locking block away from the housing; and a protective component, the protective component being disposed on the housing and the limiting plate, the protective component being used to prevent scratches.

[0006] Preferably, the protective component includes a first soft silicone sleeve and a second soft silicone sleeve, the first soft silicone sleeve and the second soft silicone sleeve being fixedly sleeved on the outer side of the housing and the limiting plate, respectively, and the first soft silicone sleeve being in contact with the second soft silicone sleeve.

[0007] Preferably, a connecting rod is installed on the side of the housing and the limiting plate that are far apart from each other, a restraining strap is installed on the side of the two connecting rods that are far apart from each other, and anti-collision bends are provided on the two connecting rods.

[0008] Preferably, threaded blocks are threadedly installed on the top and bottom of the housing, and the two threaded blocks can respectively contact the two metal plates. A retaining plate is installed on the side of the two threaded blocks that is far apart from each other, and an adjusting plate is installed on the side of the two retaining plates that is far apart from each other. An adjusting port is provided on the top and bottom of the first soft silicone sleeve.

[0009] Preferably, each of the plurality of adjusting blocks is equipped with a slider, and the top inner wall and bottom inner wall of the housing are provided with sliding grooves, and the plurality of sliders are slidably installed in two of the sliding grooves respectively.

[0010] Preferably, two springs are installed in each of the two grooves, and the multiple springs are respectively connected to the multiple sliders, with the multiple springs located on both sides of the two metal sheets.

[0011] Preferably, the first soft silicone sleeve has a groove, and a double-sided adhesive sticker for stabilizing the decorative sticker is pasted in the groove. Both metal pieces are made of highly elastic metal material.

[0012] Compared with related technologies, the anti-scratch fastener provided by this utility model has the following beneficial effects:

[0013] Compared with existing technologies, the anti-scratch buckle provided by this solution can provide more comprehensive protection for the device by setting a first soft silicone sleeve and a second soft silicone sleeve, preventing the device from scratching other equipment or being damaged, and extending the service life of the device. By setting two metal plates, the locking block can be clamped, thereby realizing the connection of the buckle. The metal plates can be stabilized by the threaded block, making them lose their elasticity, thereby ensuring stability. The metal plates can be unlocked by removing the threaded block, which facilitates the installation and removal of the locking block. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the main sectional view of a fastener with anti-scratch function provided by this utility model;

[0015] Figure 2 This is a schematic diagram of the main structure of a fastener with anti-scratch function provided by this utility model;

[0016] Figure 3 for Figure 1 An enlarged structural diagram of part A shown in the figure;

[0017] Figure 4 This is a three-dimensional structural diagram of the adjusting block in this utility model.

[0018] Reference numerals: 1. Housing; 2. Adjusting block; 3. Metal sheet; 4. Locking block; 5. Limiting plate; 6. Connecting rod; 7. Restraint strap; 8. First soft silicone sleeve; 9. Second soft silicone sleeve; 10. Threaded block; 11. Locking plate; 12. Adjusting piece; 13. Adjusting port; 14. Groove; 15. Double-sided adhesive tape; 16. Slider; 17. Rotating shaft. Detailed Implementation

[0019] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings are used to distinguish different objects, not to describe a particular order; the terms "inner," "outer," "left," and "right" indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention 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 of the present invention.

[0020] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0021] This utility model embodiment provides a fastener with anti-scratch function, such as Figure 1-4 As shown, the anti-scratch fastener includes: a housing 1; multiple adjusting blocks 2, which are slidably mounted on the top inner wall and bottom inner wall of the housing 1 respectively; multiple rotating shafts 17, which are rotatably mounted on the multiple adjusting blocks 2 respectively; two metal pieces 3, which are fixed between the multiple rotating shafts 17 respectively; a locking block 4, which is locked between the two metal pieces 3, and a limiting plate 5 is installed on the side of the locking block 4 away from the housing 1; and a protective component, which is disposed on the housing 1 and the limiting plate 5, and is used to prevent scratches.

[0022] In this embodiment, the housing 1 serves as the main structure of the fastener, providing a mounting base for other components. The main function of the adjusting block 2 is to allow the position or tightness of the internal components to be adjusted according to actual needs, increasing the flexibility and adaptability of the fastener. The rotating shaft 17 is a key component for connecting and supporting the metal sheet 3. The presence of the rotating shaft 17 allows the metal sheet 3 to rotate flexibly or adjust its angle, further enhancing the adaptability and functionality of the fastener. The two metal sheets 3 together constitute the main functional parts of the fastener, such as clamping and fixing. The choice of metal material ensures the strength and durability of the fastener. The locking block 4 plays a role in further fixing and enhancing the structural stability. The limiting plate 5 is used to limit the displacement of the locking block 4 or as an additional protective layer. The protective components are designed to prevent the edges and corners of the fastener from directly contacting and scratching the surface of the item.

[0023] In a further preferred embodiment of the present invention, the protective component includes a first soft silicone sleeve 8 and a second soft silicone sleeve 9. The first soft silicone sleeve 8 and the second soft silicone sleeve 9 are respectively fixedly sleeved on the outer side of the housing 1 and the limiting plate 5, and the first soft silicone sleeve 8 can contact the second soft silicone sleeve 9.

[0024] In this embodiment, the first soft silicone sleeve 8 serves as a direct protective layer for the housing 1, preventing the edges and corners of the housing 1 from directly contacting the object, thereby avoiding scratches on the object's surface. Simultaneously, the soft silicone material also protects the housing 1 from external environmental erosion and mechanical damage. The second soft silicone sleeve 9 is also made of soft silicone, ensuring consistency in material properties with the first soft silicone sleeve 8, thus providing a balanced protective effect. Besides protecting the limiting plate 5 from damage, the second soft silicone sleeve 9 can also contact the first soft silicone sleeve 8, further increasing the overall stability and cushioning capacity of the buckle. The use of soft silicone not only enhances the protective effect but also makes the buckle more comfortable and smooth to touch and use, improving the user experience.

[0025] In a further preferred embodiment of this utility model, a connecting rod 6 is installed on the side of the housing 1 and the limiting plate 5 that are far apart from each other, a restraining strap 7 is installed on the side of the two connecting rods 6 that are far apart from each other, and anti-collision bends are provided on the two connecting rods 6.

[0026] In this embodiment, the connecting rod 6 acts as a bridge, connecting the main body of the buckle. This not only enhances the overall structural strength of the buckle but also provides a fixing point for installing the restraint strap 7, allowing the buckle to be more securely fixed to the target object. The introduction of the restraint strap 7 greatly improves the practicality and safety of the buckle, ensuring that the buckle can work stably in various complex environments. The main function of the anti-collision bend is to protect the connecting rod 6 from damage caused by external impacts, while also preventing the connecting rod 6 from causing damage to surrounding objects during collisions, extending the service life of the buckle, and reducing the risks that may arise during use.

[0027] In a further preferred embodiment of the present invention, threaded blocks 10 are threadedly installed on the top and bottom of the housing 1, and the two threaded blocks 10 can respectively contact the two metal sheets 3. A retaining plate 11 is installed on the side of the two threaded blocks 10 that is far apart from each other, and an adjusting plate 12 is installed on the side of the two retaining plates 11 that is far apart from each other. An adjusting port 13 is provided on the top and bottom of the first soft silicone sleeve 8.

[0028] In this embodiment, the main function of the threaded block 10 is to form a contact point with the metal sheet 3. By adjusting its position, the spacing or angle between the metal sheets 3 can be indirectly adjusted, thereby achieving precise control of the clamping force of the fastener. This can meet the requirements of a stable connection with long-term and high strength. When the stability requirements are low, the threaded block 10 does not need to be installed. The clamping plate 11 connects the threaded block 10 to the subsequent adjusting plate 12. The clamping plate 11 not only provides structural support, but also ensures a stable connection between the threaded block 10 and the adjusting plate 12. The adjusting plate 12 is the part that the user directly operates. By rotating it, the position of the threaded block 10 can be adjusted, thereby achieving the adjustment of the spacing or angle of the metal sheets 3.

[0029] In a further preferred embodiment of the present invention, a slider 16 is installed on each of the plurality of adjustment blocks 2, and a sliding groove is provided on the top inner wall and the bottom inner wall of the housing 1, and the plurality of sliders 16 are respectively slidably installed in the two sliding grooves.

[0030] In this embodiment, the slider 16 is designed to allow the adjusting block 2 to slide smoothly within the groove of the housing 1, thereby adjusting the position of the adjusting block 2. The groove provides a sliding track for the slider 16, restricting the direction of movement of the adjusting block 2 and ensuring the stability and accuracy of the adjusting block 2 during the sliding process. The groove restricts the direction of movement of the adjusting block 2, ensuring the stability of the adjusting block 2 during the sliding process and avoiding performance degradation or damage caused by shaking or offset.

[0031] In a further preferred embodiment of the present invention, two springs are installed in each of the two grooves, and the multiple springs are respectively connected to the multiple sliders 16, and the multiple springs are respectively located on both sides of the two metal plates 3.

[0032] In this embodiment, the spring is used to apply a certain elastic force to the slider 16. The main function of the spring is to provide a restoring force, so that when an external force is applied to the slider 16 and changes its position, once the external force disappears, the spring can push the slider 16 to automatically return to the initial position or preset position, thereby improving the clamping effect and durability of the buckle. The elastic force of the spring helps to maintain the clamping force of the metal plate 3, making the buckle more stable and reliable when clamping objects.

[0033] In a further preferred embodiment of the present invention, the first soft silicone sleeve 8 is provided with a groove 14, and a double-sided adhesive sticker 15 for stabilizing the decorative sticker is pasted in the groove 14. Both metal pieces 3 are made of highly elastic metal material.

[0034] In this embodiment, the design of the groove 14 and the double-sided adhesive 15 provides a convenient fixing position for subsequent decoration or marking. The double-sided adhesive 15 is used to stabilize decorative stickers or other elements that need to be fixed. Users can paste personalized decorative stickers in the groove 14 as needed, thereby increasing the aesthetics and recognizability of the fastener. The combination design of the groove 14 and the double-sided adhesive 15 not only facilitates personalized decoration by users, but also ensures the stability of decorative elements, avoiding the situation of falling off or shifting during use. The metal sheets 3 are all made of highly elastic metal material. This material has excellent elasticity and toughness, and can deform under external force and quickly return to its original shape, thereby maintaining a stable clamping force.

[0035] In summary, compared with related technologies, this device can provide more comprehensive protection by setting the first soft silicone sleeve 8 and the second soft silicone sleeve 9, preventing the device from scratching other equipment or being damaged, and extending the service life of the device. By setting two metal plates 3, the locking block 4 can be clamped, thereby realizing the connection of the fastener. The metal plate 3 can be stabilized by supporting the threaded block 10, making it lose its elasticity, thereby ensuring stability. The metal plate 3 can be unlocked by removing the threaded block 10, which facilitates the installation and removal of the locking block 4.

[0036] It should be understood, in the several embodiments provided in this application, that the disclosed apparatus may be implemented in other ways.

[0037] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Although this utility model has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add, delete, or otherwise adjust the features of the various embodiments of this utility model according to the circumstances without conflict or creative effort, thereby obtaining different technical solutions that do not fundamentally depart from the concept of this utility model. These technical solutions are also within the scope of protection of this utility model.

Claims

1. A fastener with anti-scratch function, characterized in that, include: case; Multiple adjusting blocks are slidably mounted on the top inner wall and the bottom inner wall of the housing, respectively. Multiple rotating shafts are respectively rotatably mounted on multiple adjusting blocks; Two metal plates are respectively fixed between the plurality of rotating shafts; A locking block, wherein the locking block is engaged between the two metal plates, and a limiting plate is installed on the side of the locking block away from the housing; A protective component is disposed on the housing and the limiting plate, and the protective component is used to prevent scratches.

2. The fastener with anti-scratch function as described in claim 1, characterized in that, The protective component includes a first soft silicone sleeve and a second soft silicone sleeve, which are respectively fixedly sleeved on the outer side of the housing and the limiting plate, and the first soft silicone sleeve can contact the second soft silicone sleeve.

3. The fastener with anti-scratch function as described in claim 1, characterized in that, A connecting rod is installed on the side of the housing and the limiting plate that are far apart from each other. A restraining strap is installed on the side of the two connecting rods that are far apart from each other. Anti-collision bends are provided on both connecting rods.

4. The fastener with anti-scratch function as described in claim 2, characterized in that, The top and bottom of the housing are threaded with threaded blocks, and the two threaded blocks can contact the two metal plates respectively. A retaining plate is installed on the side of the two threaded blocks that is far apart from each other, and an adjusting plate is installed on the side of the two retaining plates that is far apart from each other. The top and bottom of the first soft silicone sleeve are provided with adjusting ports.

5. The fastener with anti-scratch function as described in claim 1, characterized in that, Each of the multiple adjustment blocks is equipped with a slider, and the top inner wall and bottom inner wall of the housing are provided with sliding grooves, and the multiple sliders are respectively slidably installed in two of the sliding grooves.

6. The fastener with anti-scratch function as described in claim 5, characterized in that, Two springs are installed in each of the two grooves, and the multiple springs are respectively connected to the multiple sliders. The multiple springs are located on both sides of the two metal plates.

7. The fastener with anti-scratch function as described in claim 2, characterized in that, The first soft silicone sleeve has a groove, and double-sided adhesive tape for stabilizing decorative stickers is pasted in the groove. Both metal pieces are made of highly elastic metal material.