Quincunx groove with anti-skid textures and micro fastener

Abstract

The utility model provides a quincuncial groove with anti-skid textures and a miniature fastener, which relate to the technical field of mechanical fasteners and comprise a driving head, an outer hexagon bolt head, a stud, a gasket and a nut. The outer hexagon bolt head movably sleeves the outer wall of the driving head, the outer hexagon bolt head and the driving head are detachably connected with the pin through the through hole, and the top surface of the driving head is provided with a plum blossom groove and anti-skid lines to support double-tool driving of a wrench or a plum blossom screwdriver, so that the operation flexibility is improved. The first anti-sliding block is arranged at the bottom of the driving head, the second anti-sliding blocks are arranged on the upper side and the lower side of the gasket, and the third anti-sliding block is arranged at the top of the nut. An anti-disengaging groove is formed in the outer wall of the stud, a flexible clamping rod is arranged on the inner wall of the nut, the clamping rod is embedded into the anti-disengaging groove and a clamping groove of a connected piece, a double-thread and mechanical limiting anti-loosening structure is formed, and the nut is prevented from loosening. The fastener is diversified in function, stable in installation, reliable in looseness prevention and suitable for various scenes, and operation convenience and fastening reliability are both considered.

Description

Technical Field

[0001] This utility model relates to the field of mechanical fastener technology, and in particular to a plum blossom groove with anti-slip texture and a miniature fastener. Background Technology

[0002] Miniature fasteners are widely used in electronic equipment, mechanical connections, and other fields to reliably secure components. In existing technologies, traditional fasteners often employ a single external hexagonal or internal hexagonal drive structure, resulting in poor tool compatibility and difficulty in operation when space is limited or tools slip. While some designs incorporate a perforated groove to expand the drive options, the anti-slip texture is limited, providing insufficient friction with the tool and leading to slippage. Furthermore, existing fastener anti-loosening structures largely rely on thread friction, making them prone to loosening under long-term vibration or impact conditions, resulting in insufficient reliability.

[0003] Therefore, this utility model provides a plum blossom groove with anti-slip texture and a miniature fastener to solve one or more of the above problems. Utility Model Content

[0004] This invention provides a plum blossom groove with anti-slip texture and a miniature fastener to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: including a drive head and a stud, wherein an external hexagonal bolt head is movably sleeved on the outer wall of the drive head, and a stud is fixedly provided at the center of the bottom of the drive head, and a washer and a nut are movably sleeved on the outer wall of the stud.

[0006] Preferably, both the external hexagonal bolt head and the drive head have the same through hole, and the external hexagonal bolt head and the drive head are connected by a pin.

[0007] Preferably, a ring of anti-slip blocks is fixedly provided at the bottom of the drive head.

[0008] Preferably, several sets of identical anti-slip blocks are fixedly provided on both the upper and lower sides of the gasket.

[0009] Preferably, the top of the nut is fixed with several sets of anti-slip blocks.

[0010] Preferably, the outer wall of the stud is provided with an anti-detachment groove.

[0011] Preferably, a retaining rod is provided on the inner wall of the nut.

[0012] Preferably, the locking rod is installed in the anti-disengagement groove and the locking slot.

[0013] A plum blossom groove with anti-slip texture is used to assist in the installation of a miniature fastener, comprising: a plum blossom groove, a plum blossom groove provided on the top of the drive head, and a number of sets of anti-slip textures provided in the plum blossom groove.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This utility model features a detachable connection design between the external hexagonal bolt head and the drive head, enabling flexible tool switching (wrench or Torx screwdriver) and improving operational adaptability. The anti-slip block one at the bottom of the drive head, the anti-slip blocks two on both sides of the washer, and the anti-slip block three on the top of the nut work together to increase contact friction, preventing rotational slippage and displacement. The anti-loosening groove of the stud and the nut clamping rod form a double anti-loosening structure, which, combined with the elastic adaptation of the flexible clamping rod, effectively prevents the nut from loosening, balancing installation stability and disassembly convenience. The overall structure is compact, multifunctional, and significantly improves tightening efficiency and reliability. Attached Figure Description

[0016] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0017] In the attached diagram:

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a schematic diagram of the exploded structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the plum blossom groove and anti-slip texture structure in this utility model.

[0021] In the diagram: 1. External hex bolt head; 2. Drive head; 3. Anti-slip block one; 4. Washer; 5. Anti-slip block two; 6. Stud; 7. Nut; 8. Anti-slip block three; 9. Anti-disengagement groove; 10. Locking rod; 11. Through hole; 12. Locking groove; 13. Torx groove; 14. Anti-slip texture. Detailed Implementation

[0022] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0023] Furthermore, in this utility model, the use of terms such as "first" and "second" is for descriptive purposes only and does not specifically refer to any order or sequence, nor is it intended to limit the utility model. They are merely used to distinguish components or operations described using the same technical terms, and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions and features of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, such a combination should be considered non-existent and not within the scope of protection claimed by this utility model.

[0024] This utility model provides a technical solution; please refer to [link / reference]. Figure 1-3 The fastener includes a drive head 2 and a stud 6. An external hexagonal bolt head 1 is movably fitted onto the outer wall of the drive head 2, and the stud 6 is fixedly located at the center of the bottom of the drive head 2. A washer 4 and a nut 7 are movably fitted onto the outer wall of the stud 6. This structure, by movably fitting the external hexagonal bolt head 1 onto the outer wall of the drive head 2 and fixing the stud 6 at the bottom of the drive head 2, along with the movable fitting design of the washer 4 and nut 7, achieves the multi-functionality of the fastener. It can be driven either by the external hexagonal bolt head 1 with a wrench or by the Torx screwdriver with a Torx screwdriver via the Torx groove 13 on the top of the drive head 2, providing two different installation tool options to adapt to the needs of different work scenarios and improve the flexibility of fastener use.

[0025] Preferably, both the external hexagonal bolt head 1 and the drive head 2 have the same through hole 11, and the external hexagonal bolt head 1 and the drive head 2 are connected by a pin. This structure, where the external hexagonal bolt head 1 and the drive head 2 are connected by the same through hole 11 and pin 11, allows for quick disassembly and replacement of the external hexagonal bolt head 1 when it is damaged, simply by pulling out the pin. This simple operation and low maintenance cost significantly improve the reliability and service life of the fasteners.

[0026] Preferably, a ring of anti-slip blocks 3 is fixedly provided at the bottom of the drive head 2. The anti-slip blocks 3 at the bottom of the drive head 2 effectively prevent slippage caused by the smooth contact surface during the rotation of the drive head 2 by increasing the friction with the surface of the connected part.

[0027] Preferably, several sets of identical anti-slip blocks 5 are fixedly provided on both the upper and lower sides of the gasket 4. The anti-slip blocks 5 on the upper and lower sides of the gasket 4 form multi-point contact friction between the gasket 4 and the connected parts, which effectively prevents the gasket 4 from sliding off due to uneven force or vibration during the tightening of the stud 6.

[0028] Preferably, the top of the nut 7 is fixedly provided with several sets of anti-slip blocks 8. The anti-slip blocks 8 on the top of the nut 7 effectively prevent the nut 7 from loosening due to vibration or external impact after tightening by limiting the movement through friction with the surface of the washer 4.

[0029] Preferably, the stud 6 has an anti-disengagement groove 9 on its outer wall. The anti-disengagement groove 9 on the outer wall of the stud 6, through its cooperation with the retaining rod 10 on the inner wall of the nut 7, provides an axial limiting function for the nut 7.

[0030] Preferably, a retaining rod 10 is provided on the inner wall of the nut 7. The retaining rod 10 on the inner wall of the nut 7 is a key component of the anti-loosening structure. Through its insertion and engagement with the anti-loosening groove 9, it directly restricts the rotational movement of the nut 7.

[0031] Preferably, the locking rod 10 is installed within the anti-loosening groove 9 and the locking slot 12. The locking rod 10 is simultaneously embedded in both the anti-loosening groove 9 and the locking slot 12 of the connected part, forming a composite anti-loosening structure of "threaded + mechanical limit". This design restricts the rotation and axial displacement of the nut 7 in all possible loosening directions through physical locking.

[0032] Preferably, the locking lever 10 is made of a flexible material. For example, a locking lever 10 made of rubber or plastic combines elasticity and strength. It can adapt to the small gap between the stud 6 and the nut 7 through its own deformation to ensure a tight connection. It can also absorb energy through elastic deformation when subjected to vibration and impact, avoiding breakage or thread damage to the locking lever 10 caused by rigid collisions. In addition, the cuttable nature of the flexible material allows its length to be adjusted according to actual working conditions, making it suitable for studs 6 and nuts 7 of different specifications, thus expanding the applicability of the fastener.

[0033] A type of Torx groove with anti-slip texture is used to assist in the installation of a miniature fastener. It includes a Torx groove 13, a drive head 2 with the Torx groove 13 on its top, and several sets of anti-slip patterns 14 within the Torx groove 13. The Torx groove 13 and anti-slip patterns 14 on the top of the drive head 2 provide a driving method for the fastener independent of the external hexagonal bolt head 1. Especially when the external hexagonal bolt head 1 is damaged or tools are inconvenient to use, such as in confined spaces, it can be directly driven by a Torx screwdriver, ensuring the continuity of the installation operation. The anti-slip patterns 14 within the Torx groove 13 increase the contact friction between the tool and the drive head 2, effectively preventing the Torx screwdriver from slipping during tightening, improving installation efficiency and accuracy, and avoiding thread damage or workpiece destruction caused by tool slippage.

[0034] The working principle and beneficial effects of the above solution are as follows: Depending on the site conditions, during use, the external hexagonal bolt head 1 can be selectively fitted onto the outer wall of the drive head 2, and then a pin is inserted into the through hole 11 to connect the external hexagonal bolt head 1 and the drive head 2, thereby preventing the external hexagonal bolt head 1 and the drive head 2 from slipping off. At this time, only a wrench is needed to rotate the drive head 2 by using the setting of the external hexagonal bolt head 1. When the external hexagonal bolt head 1 is damaged, the pin can be removed, and the damaged external hexagonal bolt head 1 can be disassembled and a new external hexagonal bolt head 1 can be installed at any time. The operation is flexible and convenient.

[0035] When the external hex bolt head 1 is not needed, a tool (such as a Torx screwdriver) can be directly inserted into the Torx groove 13 (the anti-slip texture 14 can improve the friction between the tool and the fastener during installation). The tool drives the stud 6 to rotate through the drive head 2 until the anti-slip block 3 at the bottom of the drive head 2 abuts against one side of the connected part, thereby increasing the friction between the drive head 2 and the connected part. Then, the washer 4 and nut 7 are sequentially fitted onto the outer wall of the stud 6, so that one side of the anti-slip block 5 abuts against the other side of the connected part. Rotate the nut 7 until the anti-slip block 3 8 on the surface of the nut 7 abuts against the anti-slip block 2 5 on the other side of the washer 4. The initial use of this miniature fastener is completed. In order to prevent the nut 7 from loosening after installation, the locking rod 10 needs to be inserted into the anti-disengagement groove 9 through the locking groove 12 to limit and fix the nut 7, so that the nut 7 has good anti-loosening ability and improves stability. When disassembly is required, the locking rod 10 can be pulled out in advance.

[0036] The lever 10 is made of flexible materials such as rubber and plastic, which gives it a certain supporting performance while allowing it to be cut to size for different occasions.

[0037] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A miniature fastener, characterized in that: include: The drive head (2) and stud (6) are provided. The outer wall of the drive head (2) is movably fitted with an external hexagonal bolt head (1). The stud (6) is fixed at the center of the bottom of the drive head (2). The washer (4) and nut (7) are movably fitted on the outer wall of the stud (6).

2. A miniature fastener as described in claim 1, characterized in that: Both the external hexagonal bolt head (1) and the drive head (2) have the same through hole (11), and the external hexagonal bolt head (1) and the drive head (2) are connected by a pin.

3. A miniature fastener as described in claim 1, characterized in that: The bottom of the drive head (2) is fixed with a ring of anti-slip blocks (3).

4. A miniature fastener as described in claim 1, characterized in that: The gasket (4) has several sets of identical anti-slip blocks (5) fixed on both the upper and lower sides.

5. A miniature fastener as described in claim 1, characterized in that: The top of the nut (7) is fixed with several sets of anti-slip blocks (8), and the nut (7) and the stud (6) are connected by threads.

6. A miniature fastener as described in claim 1, characterized in that: The stud (6) has an anti-detachment groove (9) on its outer wall.

7. A miniature fastener as described in claim 6, characterized in that: A retaining rod (10) is provided on the inner wall of the nut (7).

8. A miniature fastener as described in claim 7, characterized in that: The lever (10) is installed in the anti-detachment groove (9) and the slot (12).

9. A miniature fastener as described in claim 8, characterized in that: The lever (10) is made of flexible material.

10. A plum blossom groove with anti-slip texture, used to assist in the installation of a miniature fastener as described in any one of claims 1-9, characterized in that: include: The top of the drive head (2) is provided with a plum blossom groove (13), and the plum blossom groove (13) is provided with several sets of anti-slip patterns (14).

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