A non-slip socket head cap screw

Abstract

The utility model discloses a kind of anti-skid hexagonal socket head cap screws, it is related to mechanical engineering technical field.A kind of anti-skid hexagonal socket head cap screw, including screw body, screw cap and positioning ring, screw cap is fixedly installed in one end of screw body, positioning ring is slidably sleeved in the outer wall of screw body, screw cap is hexagonal, the outer wall of screw body is provided with thread, by plum-blossom type hexagonal socket groove design on screw cap, it is formed by hexagonal socket groove and six arc grooves cooperation, plays core role, compared with traditional hexagonal socket groove, the contact area of plum-blossom type hexagonal socket groove and hexagonal socket wrench is substantially increased, and multiple contact points are formed when the two are embedded, make torque transmission more uniform, when exerting torque, the edge and corner of hexagonal socket wrench and arc groove are tightly engaged, effectively disperses stress, avoids stress concentration in the edge and corner part of groove, to reduce the abrasion deformation of hexagonal socket groove, reduce the risk of skid.

Description

Technical Field

[0001] This utility model relates to the field of mechanical engineering technology, and in particular to an anti-slip internal hexagon screw. Background Technology

[0002] In many fields such as machinery manufacturing, equipment installation and maintenance, hex socket screws have become indispensable fasteners due to their unique structural advantages. Traditional hex socket screws have an internal hex socket in the head. This structural design allows for precise insertion of the matching hex wrench, enabling tightening and loosening of the screw. The internal hex socket design effectively utilizes space. Compared to external hex sockets, hex socket screws have a smoother surface after installation, making them suitable for applications requiring ample installation space and a smooth or aesthetically pleasing surface, such as electronic equipment housings and precision instrument assembly. Furthermore, when operating the hex wrench, the direction of force is aligned with the screw's axis, effectively reducing uneven force on the screw caused by eccentricity and lowering the risk of stripping or damage. Therefore, they are highly favored in practical applications.

[0003] However, with the continuous development of industrial technology and the increasing complexity of application scenarios, the most prominent problem with traditional hex socket screws during use is slippage. In actual operation, when it is necessary to tighten or loosen the screw with high strength, the contact area between the hex wrench and the hex socket is limited, and the friction between the two is relatively insufficient. Once the operator applies too much torque, the hex wrench is easy to come out of the hex socket, which not only leads to operation interruption and affects work efficiency, but may also cause accidental injury to the operator. Utility Model Content

[0004] The purpose of this utility model is to at least solve one of the technical problems existing in the prior art, and to provide an anti-slip hex socket screw. This solves the problem that when a screw needs to be tightened or disassembled with high strength, the contact area between the hex wrench and the hex socket is limited and the friction between the two is relatively insufficient. If the torque applied by the operator is too large, the hex wrench is easy to come out of the hex socket, which not only leads to operation interruption and affects work efficiency, but may also cause accidental injury to the operator.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an anti-slip internal hexagon screw, comprising a screw body, a nut, and a locating ring, wherein the nut is fixedly installed at one end of the screw body, the locating ring is slidably sleeved on the outer wall of the screw body, and the nut is hexagonal;

[0006] The screw body has threads on its outer wall, and the nut has multiple anti-slip grooves on its hexagonal outer wall.

[0007] Preferably, the plurality of anti-slip grooves form an anti-slip area on the outer wall of the nut;

[0008] The lower outer wall of the nut is fixedly connected with multiple tapered anti-slip blocks.

[0009] Preferably, the plurality of the tapered anti-slip blocks form an anti-slip area on the lower outer wall of the nut;

[0010] The upper surface of the positioning ring is in contact with an anti-slip area composed of multiple tapered anti-slip blocks.

[0011] Preferably, the upper surface of the nut has an internal hexagonal groove.

[0012] Preferably, the inner walls of the hexagonal socket are provided with arc-shaped grooves.

[0013] Preferably, the six arc-shaped grooves cooperate with the internal hexagonal grooves to form a plum blossom-shaped internal hexagonal groove.

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

[0015] 1. This anti-slip hex socket screw features a Torx-shaped hex socket design on the nut. The hex socket and six curved grooves work together to form the core of the design. Compared to traditional hex sockets, the Torx-shaped hex socket significantly increases the contact area between the screw and the hex wrench. The multiple contact points formed when the two are engaged make the torque transmission more even. When torque is applied, the edges of the hex wrench mesh tightly with the curved grooves, effectively dispersing stress and preventing stress concentration at the edges of the grooves. This reduces wear and deformation of the hex socket and lowers the risk of slippage. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a schematic diagram of the external structure of the positioning ring of this utility model;

[0019] Figure 3 This is a schematic diagram of the external structure of the nut of this utility model;

[0020] Figure 4 This is a structural schematic diagram of section A in Figure 2 of this utility model.

[0021] Reference numerals in the attached diagram: 1. Screw body; 2. Nut; 3. Anti-slip groove; 4. Socket hexagonal groove; 5. Arc groove; 6. Conical anti-slip block; 7. Locating ring; 8. Thread. Detailed Implementation

[0022] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0023] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this 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. Therefore, they should not be construed as limitations on this utility model.

[0024] In the description of this utility model, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of terms like "first" and "second" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the quantity or sequence of the indicated technical features.

[0025] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0026] Please see Figure 1-4 This utility model provides a technical solution: an anti-slip internal hexagon screw, including a screw body 1, a nut 2, and a positioning ring 7. The nut 2 is fixedly installed at one end of the screw body 1, and the positioning ring 7 is slidably sleeved on the outer wall of the screw body 1. The nut 2 is hexagonal, and the outer wall of the screw body 1 is provided with threads 8. Multiple anti-slip grooves 3 are formed on the hexagonal outer wall of the nut 2, and the multiple anti-slip grooves 3 form an anti-slip area on the outer wall of the nut 2. Multiple conical anti-slip blocks 6 are fixedly connected to the lower outer wall of the nut 2, and the multiple conical anti-slip blocks 6 form an anti-slip area on the lower outer wall of the nut 2. The upper surface of the positioning ring 7 is in contact with the anti-slip area formed by the multiple conical anti-slip blocks 6. An internal hexagonal groove 4 is formed on the upper surface of the nut 2, and an arc-shaped groove 5 is formed on the hexagonal inner wall of the internal hexagonal groove 4. The six arc-shaped grooves 5 cooperate with the internal hexagonal groove 4 to form a plum blossom-shaped internal hexagonal groove.

[0027] The Torx-shaped internal hexagonal groove design on nut 2, formed by the internal hexagonal groove 4 and six arc-shaped grooves 5, plays a crucial role. Compared to traditional internal hexagonal grooves, the Torx-shaped internal hexagonal groove has a significantly increased contact area with the internal hexagonal wrench. The multiple contact points formed when the two are engaged make the torque transmission more uniform. When torque is applied, the edges of the internal hexagonal wrench tightly engage with the arc-shaped grooves 5, effectively dispersing stress and preventing stress concentration at the edges of the grooves. This reduces wear and deformation of the internal hexagonal groove and lowers the risk of slippage.

[0028] Structural Description: Screw Body 1: As the core load-bearing and connecting component of the entire screw, its outer wall is provided with thread 8. Thread 8 adopts a standard or specially designed tooth profile. By cooperating with the screw hole on the connected part, the screw and the connected part are fastened together. The pitch, tooth profile angle and other parameters of thread 8 are precisely designed to ensure that while providing sufficient fastening force, it has good screw-in and screw-out performance.

[0029] Nut 2: Fixedly installed at one end of screw body 1, it has a hexagonal structure and provides a point of force for operation. Multiple anti-slip grooves 3 are formed on the hexagonal outer wall of nut 2. These anti-slip grooves 3 can be rectangular, V-shaped or other shapes. By increasing the surface roughness, an anti-slip area is formed, which increases the friction between the nut 2 and auxiliary tools (such as wrench sleeves) or fingers, making it easier for operators to apply force when tightening or loosening. Multiple conical anti-slip blocks 6 are fixedly connected to the lower outer wall of nut 2. The tips of the conical anti-slip blocks 6 face outward, forming another anti-slip area on the lower outer wall of nut 2. Its special conical structure can be embedded into the surface of the connected parts during installation, increasing the stability of the connection. In addition, an internal hexagonal groove 4 is formed on the upper surface of nut 2. The six inner walls of the internal hexagonal groove 4 are all formed with arc grooves 5. The six arc grooves 5 and the internal hexagonal groove 4 cooperate to form a plum blossom-shaped internal hexagonal groove. This unique groove design changes the way it is used with an internal hexagonal wrench and improves the torque transmission efficiency.

[0030] Locating ring 7: It is slidably sleeved on the outer wall of the screw body 1 and can move freely along the axial direction of the screw body 1. The inner diameter of the locating ring 7 is adapted to the outer diameter of the screw body 1 to ensure that it will not easily fall off during sliding, while also being able to flexibly adjust its position. Its main function is to adjust its own position according to the thickness of the connected parts during installation to limit the depth of screw screw insertion, and to work in conjunction with the tapered anti-slip block 6 at the lower end of the nut 2 to enhance the anti-loosening effect of the screw.

[0031] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A security hexagon socket screw comprising a screw body (1), a nut (2) and a retainer ring (7), characterized in that: The nut (2) is fixedly installed at one end of the screw body (1), and the positioning ring (7) is slidably sleeved on the outer wall of the screw body (1). The nut (2) is hexagonal. Among them, the outer wall of the screw body (1) is provided with threads (8), and the hexagonal outer wall of the nut (2) is provided with multiple anti-slip grooves (3). The upper surface of the nut (2) is provided with an internal hexagonal groove (4); The inner walls of the hexagonal socket (4) are all provided with arc-shaped grooves (5); The six arc-shaped grooves (5) and the internal hexagonal grooves (4) are combined to form a plum blossom-shaped internal hexagonal groove.

2. A cheese head screw according to claim 1, wherein: The multiple anti-slip grooves (3) form an anti-slip area on the outer wall of the nut (2); Among them, the lower outer wall of the nut (2) is fixedly connected with multiple conical anti-slip blocks (6).

3. A chequer head screw according to claim 2, wherein: Multiple tapered anti-slip blocks (6) form an anti-slip area on the lower outer wall of the nut (2); The upper surface of the positioning ring (7) is in contact with the anti-slip area composed of multiple tapered anti-slip blocks (6).

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