Anti-skid hexagon bolt head structure

Abstract

The utility model discloses an anti-skidding hexagon bolt head structure which comprises a stud and a hexagon nut, an anti-skidding assembly is arranged on the outer wall of the nut, a flower head hole and a flower head adaptive assembly are arranged on the top of the nut, the anti-skidding assembly is composed of a fixing plate and anti-skidding grains, the fixing plate vertically extends to six faces of the nut, and the anti-skidding grains are evenly arranged. A triangular connecting block is arranged between the fixing plates to disperse stress, the flower head adapting assembly comprises an adapting base and a boss, an inclined face with an anti-slip strip is arranged between the outer wall of the boss and the base, and hexagonal adapting holes matched with flower head holes are formed in the middle of the base and the middle of the boss. The flower head hole is compatible with various tools, the adaptive base and the anti-slip strip expand the use scene, the adaptive hole ensures that the tools are accurately aligned, the inclined surface of the anti-slip strip is seamlessly connected with the edge, the stress concentration is reduced, a stud thread does not make contact with the bottom of the nut, and the fastening effect is prevented from being influenced by deformation.

Description

TECHNICAL FIELD

[0001] The utility model relates to a hexagonal bolt head structure of anti -skidding. BACKGROUND

[0002] The hexagonal bolt is composed of a hexagonal head and a cylindrical screw rod, and is usually made by pickling, phosphorization, cold upsetting forming, heat treatment, thread rolling and the like, the standard hexagonal bolt is prone to causing the pre-tightening force to drop due to the micro-slippage of the thread pair under the dynamic load or the vibration environment, and causing loosening, and the traditional hexagonal head relies on the friction force of the wrench contact surface to transmit the torque, and the tool is prone to slipping when the surface is lubricated or corroded, the existing hexagonal bolt usually compensates for the pre-tightening force loss by increasing the friction pair or the elastic deformation, such as adding a nut or an elastic washer, but this way increases the installation complexity.

[0003] Therefore, it is necessary to invent a hexagonal bolt head structure of anti -skidding to solve the above problems. CONTENT OF THE UTILITY MODEL

[0004] (I) purpose of the utility model

[0005] To solve the technical problems in the background art, the utility model provides a hexagonal bolt head structure of anti -skidding, which can reduce the sliding of the hexagonal bolt during use.

[0006] (II) technical scheme

[0007] In order to achieve the above object, the utility model provides the following technical scheme: a hexagonal bolt head structure of anti -skidding, comprising a stud and a hexagonal nut installed on the top of the stud, a plurality of anti -skid components are installed on the outer wall of the hexagonal nut, a tap hole is arranged on the top of the hexagonal nut, and a tap adapter component is installed on the top of the hexagonal nut.

[0008] The anti -skid component comprises a fixed plate fixed on the six surfaces of the outer wall of the hexagonal nut, the fixed plate extends vertically along the direction of the outer wall of the hexagonal nut, a plurality of anti -skid lines are installed on the fixed plate, the plurality of anti -skid lines are arranged uniformly, and a connecting block is arranged between each group of fixed plates.

[0009] The tap adapter component comprises an adapter base fixed on the top of the hexagonal nut, a boss extends from the top of the adapter base, an inclined surface is arranged between the outer wall of the boss and the adapter base, a plurality of anti -skid strips are arranged uniformly on the inclined surface, and an adapter hole matched with the tap hole is arranged in the middle of the adapter base and the boss.

[0010] Preferably, the connecting block is arranged between two groups of fixed plates, and the overall transverse section is triangular, the bottom surface faces outward, and the front surface of the adjacent fixed plate is at the same angle, the anti -skid line is wave-shaped, a plurality of anti -skid lines are arranged uniformly, and each group of wave shapes is consistent.

[0011] Preferably, the hexagonal head hole is arranged at the center of the top of the hexagonal nut, and the hexagonal head hole is a hexagonal hole, that is, the shape of the adapter hole is matched with the hexagonal hole, and the inner side of the hexagonal hole is a bevel at each end, matched with an external tool.

[0012] Preferably, the top area of the boss is smaller than the top area of the adapter base and the hexagonal nut, and the top size of the adapter base and the hexagonal nut is consistent, the anti-skid strips are arranged in parallel on the bevel, and are arranged vertically on the upper and lower edges of the bevel.

[0013] Preferably, the anti-skid strips are consistent in shape and size, and the upper and lower ends of the anti-skid strips are bevels, and the bottom end of the bevel is connected with the edge of the bevel.

[0014] Preferably, the outer wall of the stud is provided with threads, and the top of the threads does not contact the bottom of the hexagonal nut.

[0015] Compared with the prior art, the beneficial effects of the above technical scheme of the utility model are:

[0016] 1. The utility model discloses a fixed plate and anti-skid lines of the outer wall of the hexagonal nut significantly increase the friction with a wrench or a tool, prevent slipping, and the triangular connecting block and the fixed plate form a continuous anti-skid surface, further disperse stress, and avoid slipping caused by local stress concentration.

[0017] 2. The utility model discloses a hexagonal head hole compatible with various tools, and the boss and anti-skid strips of the adapter base expand the use scene, the middle adapter hole of the adapter base and the boss ensures accurate alignment of the tool, and reduces abrasion.

[0018] 3. The utility model discloses that the anti-skid strips are seamlessly connected with the edge of the bevel at both ends, avoid stress concentration, prolong service life, the threads of the stud do not contact the bottom of the hexagonal nut, and prevent deformation of the threads from affecting the fastening effect. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical scheme in the embodiments or the prior art, the drawings needed in the embodiments will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments described in the utility model, and other drawings can be obtained by those skilled in the art according to these drawings.

[0020] Figure 1 It is a whole structure schematic view of the utility model;

[0021] Figure 2 It is a split structure schematic view of the hexagonal nut and the head adapter assembly of the utility model;

[0022] Figure 3 Split structure schematic view of the anti-skid assembly of the utility model;

[0023] Figure 4 Split structure schematic view of the adapter block of the utility model;

[0024] Figure 5 Split structure schematic view of the tap adapter assembly of the utility model.

[0025] Mark explanation:

[0026] 1, stud; 11, thread; 2, hex nut; 21, tap hole; 3, anti-skid assembly; 31, fixed plate; 32, anti-skid line; 33, adapter block; 4, tap adapter assembly; 41, adapter base; 42, boss; 43, inclined surface; 44, anti-skid strip; 45, adapter hole. Specific implementation

[0027] In order to make the technical personnel in the field better understand the technical scheme of the utility model, the utility model will be further introduced in detail below in conjunction with the drawings.

[0028] The utility model provides a kind of anti-skid hexagonal bolt head structure as Figures 1-5 As shown in the figure, including stud 1 and the hexagonal nut 2 installed on the top of stud 1, a plurality of anti-skid assemblies 3 are installed on the outer wall of hexagonal nut 2, the top of hexagonal nut 2 is provided with tap hole 21, and tap hole 21 is provided with tap adapter assembly 4 on the top;

[0029] Specifically, the anti-skid assembly 3 includes the fixed plate 31 fixed on the outer wall of the hexagonal nut 2 six faces, the fixed plate 31 extends vertically along the direction of the outer wall of the hexagonal nut 2, and a plurality of anti-skid lines 32 are installed on the fixed plate 31, the plurality of anti-skid lines 32 are uniformly arranged, and the adapter block 33 is further provided between each fixed plate 31;

[0030] Specifically, the tap adapter assembly 4 includes the adapter base 41 fixed on the top of the hexagonal nut 2, the boss 42 is extended on the top of the adapter base 41, the inclined surface 43 is arranged between the outer wall of the boss 42 and the adapter base 41, a plurality of anti-skid strips 44 are arranged on the inclined surface 43, and the adapter hole 45 matched with the tap hole 21 is arranged in the middle of the adapter base 41 and the boss 42.

[0031] Specifically, the adapter block 33 is arranged between the two fixed plates 31, and the overall transverse section is triangular, the bottom surface is outward, and the front surface of the adjacent fixed plate 31 is at the same angle, the anti-skid line 32 is in wave shape, the plurality of anti-skid lines 32 are uniformly arranged, and each group is consistent in wave shape.

[0032] In this embodiment, the outer wall of the stud 1 is provided with a thread 11, and the top of the thread is kept a certain distance from the bottom of the hexagonal nut 2 to avoid deformation of the thread under stress and affect the stability of the nut installation. The top center of the hexagonal nut 2 is provided with a hexagonal socket hole 21, and the hexagonal end faces in the hole are designed as bevels, which are suitable for standard hexagonal tools such as hexagonal wrenches. Six vertical fixed plates are welded on the six faces of the hexagonal nut outer wall of the fixed plate 31, and the material is consistent with the nut. The anti-slip pattern 32 is uniformly processed into a wave-shaped groove on the fixed plate, and the wave crests and troughs are alternately arranged to form multiple groups of uniformly spaced friction surfaces. The triangular section metal block 33 is welded between the two groups of fixed plates, the bottom surface is outward, and the same angle is formed with the front surface of the fixed plate to enhance the overall structure. The adapter base 41 is fixed on the top of the hexagonal nut by welding or one-piece molding, and the size is consistent with the top of the nut to ensure uniform stress. The boss 42 is extended upward to form a cylindrical boss in the center of the adapter base, and the top area is smaller than the base, and the outer wall is inclined 43 between the base. The anti-slip strip 44 is milled or stamped into a parallel strip-shaped protrusion on the inclined surface, and the upper and lower ends of each anti-slip strip form multiple-point engagement when in contact with the tool. The adapter hole 45 penetrates the hexagonal hole of the adapter base and the boss, and is coaxial with the socket hole 21, which is suitable for standard flower-shaped tools.

[0033] Referring to Figure 2 , the socket hole 21 is arranged at the center of the top of the hexagonal nut 2, and the socket hole 21 is a hexagonal hole, that is, the adapter hole 45 is matched as a hexagonal hole, and the hexagonal interior of the socket hole 21 is beveled on each end.

[0034] Specifically, the top area of the boss 42 is smaller than the top area of the adapter base 41 and the hexagonal nut 2, and the top size of the adapter base 41 and the hexagonal nut 2 is consistent, the anti-slip strips 44 are arranged in parallel on the inclined surface 43, and the upper and lower edges of the inclined surface 43 are arranged vertically.

[0035] Referring to Figure 5 , the plurality of anti-slip strips 44 are consistent in shape and size, and the upper and lower ends of the anti-slip strips 44 are beveled, and the beveled bottom end is connected with the edge of the inclined surface 43.

[0036] Specifically, the outer wall of the stud 1 is provided with a thread 11, and the top of the thread 11 does not contact the bottom of the hexagonal nut 2.

[0037] The anti-skid lines 32 are wavy designed to increase the friction coefficient between the operator's hand or tool and the nut, especially in wet or oily environment, the valleys of the anti-skid lines can store lubricating medium to reduce the risk of slipping. The triangular cross-section of the adapter block 33 disperses lateral pressure and prevents the deformation of the fixing plate due to excessive torque, while forming an auxiliary friction surface. The hexagonal hole of the flower hole 21 and the adapter hole 45 is compatible with traditional inner hexagonal tools, and the adapter hole 45 is compatible with flower-shaped tools through the anti-skid strip 44, realizing a double-tool driving mode. When the tool is inserted into the adapter hole, the inclined surface of the anti-skid strip engages with the tool tooth surface, reducing the probability of tool slipping, especially suitable for high-torque scenarios such as heavy machinery. The top of the thread 11 is not in contact with the bottom of the nut 2, avoiding deformation of the thread caused by stress during installation, prolonging the service life. The boss 42 reduces the contact area at the top, reducing the risk of tool deviation; the inclined surface design guides the tool to be accurately inserted into the adapter hole. In a vibrating environment, the engagement effect of the anti-skid lines and the anti-skid strip can offset the loosening trend, reducing the probability of self-loosening of the bolt.

[0038] The above only describes certain exemplary embodiments of the present application by way of illustration, without doubt, for ordinary skilled in the art, without departing from the spirit and scope of the present application, the described embodiments can be modified in various ways. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present application.

Claims

1. A non-slip hex head bolt head structure, characterized by: The utility model provides a hexagonal nut (2) is installed on the top of stud (1), a plurality of anti -skid components (3) are installed on the outer wall of hexagonal nut (2), the top of hexagonal nut (2) is equipped with the socket hole (21), the socket hole (21) top is equipped with the socket adapter assembly (4). The anti -skid component (3) includes the fixed plate (31) fixed on the outer wall six of hexagonal nut (2), the fixed plate (31) extends perpendicularly along the outer wall direction of hexagonal nut (2), and a plurality of anti -skid lines (32) are installed on the fixed plate (31), a plurality of anti -skid lines (32) are uniformly arranged, and the link block (33) is further equipped between each group fixed plate (31). The socket adapter assembly (4) includes the adapter base (41) fixed on the top of hexagonal nut (2), the boss (42) extends on the top of adapter base (41), the inclined surface (43) is equipped between the outer wall of boss (42) and adapter base (41), a plurality of uniformly arranged anti -skid strips (44) are arranged on the inclined surface (43), and the adapter hole (45) matched with the socket hole (21) is arranged in the middle of adapter base (41) and boss (42).

2. A non-slip hexagonal bolt head structure according to claim 1, characterized in that: The link block (33) is arranged between two groups of fixed plate (31), and the overall transverse section is triangular, the bottom surface faces outward, and the front surface of adjacent fixed plate (31) is at the same angle, the anti -skid line (32) is wave-shaped, a plurality of anti -skid lines (32) are uniformly arranged, and each group is wave-shaped.

3. The anti-slip hexagonal bolt head structure according to claim 1, characterized in that: The socket hole (21) is arranged at the top center of hexagonal nut (2), and the socket hole (21) is a hexagonal hole, that is, the adapter hole (45) is matched as a hexagonal hole, and the inner hexagonal end of socket hole (21) is inclined.

4. The anti-slip hexagonal bolt head structure according to claim 1, characterized in that: The top area of boss (42) is less than the top area of adapter base (41) and hexagonal nut (2), and the top size of adapter base (41) and hexagonal nut (2) is consistent, the anti -skid strips (44) are arranged on the inclined surface (43) in parallel, and the upper and lower edges of the inclined surface (43) are arranged vertically.

5. A non-slip hex head bolt head structure according to claim 4, wherein: A plurality of anti -skid strips (44) are consistent in shape and size, and the upper and lower ends of anti -skid strips (44) are inclined, and the inclined bottom end is connected with the edge of inclined surface (43).

6. A non-slip hex head bolt head structure according to claim 1, wherein: The outer wall of stud (1) is provided with a thread (11), and the top of thread (11) does not contact the bottom of hexagonal nut (2).

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