U-shaped antiskid bolt assembly

Abstract

The utility model provides a U-shaped anti-skidding bolt assembly, which comprises a U-shaped screw rod, a screw rod, an anti-skidding screw rod and an anti-skidding screw rod, the U-shaped screw rod comprises a non-threaded section and two threaded sections, the two threaded sections are respectively arranged at two ends of the non-threaded section to form a U-shaped structure, and an anti-loosening tooth groove is arranged on the inner side of the non-threaded section; through holes are formed in the two ends of the holding clamp, and a threaded hole is formed in the middle of the holding clamp; the holding clamp is arranged on the two threaded sections in a sleeving mode through the two through holes, and an anti-loosening tooth groove is formed in the inner side of the holding clamp. The stop bolt is screwed into the threaded hole, and the end of the stop bolt abuts against a fixed part between the U-shaped screw and the holding clamp. The nut assembly is arranged on the threaded section, and the nut assembly is used for achieving the purpose that the holding clamp is matched with the U-shaped screw to clamp the fixed part. The non-threaded section and the inner side wall of the holding clamp serve as the face making contact with a fixed part, the surface roughness of the contact face can be increased after the anti-loosening tooth grooves are added, and the situation that the U-shaped screw, the holding clamp and the fixed part slip, and consequently fastening fails is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of bolt fasteners, in particular to a U-shaped anti-slip bolt assembly. Background Art

[0002] U-bolts are commonly used in circular pipe installations. They are commonly found in disconnectors and earthing switches, where they are used for securing circular pipes, such as earthing shanks, vertical and horizontal connecting rods. Due to their unique application, U-bolts require higher reliability.

[0003] Currently, U-bolts are generally made of round steel. The two ends of the U-bolt are threaded, and the non-threaded section in the middle is circular. This type of U-bolt has a small contact area with the circular pipe and low static friction. When used in outdoor disconnectors and grounding switch equipment, extreme weather can easily cause the U-bolt and the circular pipe to slip, resulting in serious power outages.

[0004] In summary, there is an urgent need for a U-shaped anti-slip bolt assembly to solve the problems existing in the prior art. Utility Model Content

[0005] The purpose of this utility model is to provide a U-shaped anti-slip bolt assembly, aiming to solve the problem of easy slippage between the existing U-shaped bolt and the fixed part. The specific technical solution is as follows:

[0006] A U-shaped anti-slip bolt assembly, comprising:

[0007] A U-shaped screw, comprising a non-threaded section and a threaded section, wherein the two threaded sections are respectively provided at both ends of the non-threaded section to form a U-shaped structure, and an anti-loosening tooth groove is provided on the inner side of the non-threaded section;

[0008] The clamp has through holes at both ends and a threaded hole in the middle. The clamp is sleeved on the two threaded sections through the two through holes, and an anti-loosening tooth groove is provided on the inner side of the clamp.

[0009] A fixing bolt, wherein the fixing bolt is screwed into the threaded hole and an end thereof abuts against a fixed member between the U-shaped screw and the clamp;

[0010] A nut assembly is provided on the threaded section, and the nut assembly is used to clamp the fixed part in cooperation with the U-shaped screw.

[0011] Preferably, in the above technical solution, the inner side surface of the clamp is an arc surface, and the clamp is provided with the anti-loosening tooth groove on the arc surface.

[0012] Preferably in the above technical solution, the cross section of the non-threaded section is flat.

[0013] Preferably in the above technical solution, the threaded section and the non-threaded section are an integrated structure.

[0014] Preferably, in the above technical solution, the raw material of the U-shaped screw is round steel, and the non-threaded section is pressed into a flat shape.

[0015] Preferably, in the above technical solution, a limiting groove is provided on the fixed member, and after the fixing bolt is screwed into the threaded hole, the end portion of the fixing bolt is inserted into the limiting groove.

[0016] Preferably, in the above technical solution, the nut assembly includes a flat washer, an elastic washer and a fastening nut, the flat washer is arranged close to the clamp, and the elastic washer is arranged between the flat washer and the fastening nut.

[0017] Preferably, in the above technical solution, the length direction of the anti-loosening tooth groove is parallel to the axial direction of the U-shaped anti-slip bolt assembly.

[0018] Preferably in the above technical solutions, the anti-loosening grooves on the inner side of the non-threaded segment are arranged along the circumference of its inner wall, and the multiple anti-loosening grooves are arranged at intervals along the axial direction of the non-threaded segment; the anti-loosening grooves on the inner side of the clamp are arranged along the circumference of its inner wall, and the multiple anti-loosening grooves are arranged at intervals along the axial direction of the clamp.

[0019] Preferably in the above technical solution, the inner side of the non-threaded section is provided with an anti-loosening groove parallel to the axial direction of the U-shaped anti-slip bolt assembly, and also provided with an anti-loosening groove along the circumference of the inner wall of the non-threaded section; the inner side of the clamp is provided with an anti-loosening groove parallel to the axial direction of the U-shaped anti-slip bolt assembly, and also provided with an anti-loosening groove along the circumference of the inner wall of the clamp.

[0020] The application of the technical solution of the utility model has the following beneficial effects:

[0021] The U-shaped anti-slip bolt assembly of this utility model clamps and secures the fixed part through the cooperation of the clamp and the U-shaped screw, achieving the effect of fixing the fixed part. Anti-loosening grooves are provided on the inner side of the non-threaded section and the inner side of the clamp. The inner sidewalls of the non-threaded section and the clamp serve as the contact surfaces with the fixed part. The addition of anti-loosening grooves can increase the surface roughness of the contact surface, thereby increasing the friction between the non-threaded section and the clamp and the fixed part, thereby preventing the U-shaped screw, the clamp and the fixed part from slipping and causing the fastening to fail.

[0022] After the end of the stop bolt is pressed against the fixed part and tightened, a clamping force will be applied to the fixed part, so that the fixed part is tightly pressed against the non-threaded section, which increases the friction between the fixed part and the non-threaded section; at the same time, the force reacted by the fixed part to the stop bolt will act between the stop bolt and the clamp, and be transmitted to the nut assembly and the threaded section through the clamp. After the stop bolt and the clamp are tightened, and the nut assembly is tightened on the threaded section, this reaction force can prevent the threaded connection between the stop bolt and the clamp, and between the nut assembly and the threaded section from loosening.

[0023] In addition to the above-described purposes, features and advantages, the present invention has other purposes, features and advantages. The present invention will be further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings, which constitute part of this application, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0025] Figure 1 This is a schematic structural diagram of the U-shaped anti-slip bolt assembly of the utility model;

[0026] Figure 2 yes Figure 1 Cross-sectional view at the middle BB;

[0027] Among them, 1. U-shaped screw, 1.1. Non-threaded section, 1.2. Threaded section, 2. Clamp, 3. Set bolt, 4. Nut assembly, 4.1. Flat washer, 4.2. Elastic washer, 4.3. Fastening nut, 5. Anti-loosening tooth groove. DETAILED DESCRIPTION

[0028] To facilitate understanding of the present invention, the following provides a more comprehensive description of the present invention and presents preferred embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to facilitate a more thorough and comprehensive understanding of the disclosure of the present invention.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0030] Example:

[0031] See also Figure 1-Figure 2, a U-shaped anti-slip bolt assembly, comprising:

[0032] The U-shaped screw 1 comprises a non-threaded section 1.1 and a threaded section 1.2. The two threaded sections 1.2 are respectively provided at both ends of the non-threaded section 1.1. The two threaded sections and one non-threaded section form a U-shaped structure. The inner side of the non-threaded section 1.1 is provided with an anti-loosening tooth groove 5;

[0033] The clamp 2 has through holes at both ends and a threaded hole in the middle. The clamp 2 is sleeved on the two threaded sections 1.2 through the two through holes. The inner side of the clamp 2 is provided with anti-loosening tooth grooves 5.

[0034] A fixing bolt 3, wherein the fixing bolt 3 is screwed into the threaded hole and the end thereof abuts against the fixed member between the U-shaped screw 1 and the clamp 2;

[0035] A nut assembly 4 is provided on the threaded section 1.2, and the nut assembly 4 is used to achieve the clamping 2 and the U-shaped screw 1 to cooperate and clamp the fixed part.

[0036] Specifically, the U-shaped anti-slip bolt assembly in this embodiment achieves the effect of clamping and fixing the fixed part by cooperating with the clamp 2 and the U-shaped screw 1, thereby achieving the effect of fixing the fixed part; tightening the nut assembly 4 on the threaded section 1.2 will push the clamp 2 to move along the threaded section 1.2, thereby achieving the effect of clamping the fixed part by cooperating with the clamp 2 and the U-shaped screw 1. Among them, anti-loosening grooves 5 are provided on the inner side of the non-threaded section 1.1 and the inner side of the clamp 2. The inner side walls of the non-threaded section 1.1 and the clamp 2 serve as the contact surfaces with the fixed part. After adding the anti-loosening grooves 5, the surface roughness of the contact surface can be increased, thereby achieving the effect of increasing the friction between the non-threaded section 1.1, the clamp 2 and the fixed part respectively, and preventing the U-shaped screw 1, the clamp 2 and the fixed part from slipping and causing fastening failure.

[0037] At the same time, after the stop bolt 3 is screwed into the threaded hole, its end portion rests against the fixed part, which will apply a clamping force to the fixed part and an anti-loosening force between the nut assembly 4 and the threaded section 1.2, and between the stop bolt 3 and the clamp 2; specifically, after the end of the stop bolt 3 rests against the fixed part and is tightened, a clamping force will be applied to the fixed part, so that the fixed part is tightly pressed against the non-threaded section 1.1, which increases the friction between the fixed part and the non-threaded section 1.1; at the same time, the force reacted by the fixed part to the stop bolt 3 will act between the stop bolt 3 and the clamp 2, and be transmitted to the nut assembly 4 and the threaded section 1.2 through the clamp 2. After the stop bolt 3 and the clamp 2 are tightened and the nut assembly 4 is tightened on the threaded section 1.2, the reaction force can prevent the threaded connection between the stop bolt 3 and the clamp 2, and between the nut assembly 4 and the threaded section 1.2 from loosening.

[0038] like Figure 1 As shown, the inner side surface of the clamp 2 is a circular arc surface, and the clamp 2 is provided with the anti-loosening tooth groove 5 on the circular arc surface. The inner side surface of the clamp 2 is a circular arc surface, which can better fit the surface of the fixed part, ensuring that the inner side surface of the clamp 2 is better clamped and fits the fixed part.

[0039] Furthermore, in this embodiment, the length direction of the anti-loosening groove 5 is parallel to the axial direction of the U-shaped anti-slip bolt assembly. The axial direction of the U-shaped anti-slip bolt assembly refers to the axial direction of the clamping area formed by the clamp 2 and the non-threaded section 1.1, and the fixed part is clamped in the clamping area. Furthermore, the length direction of the anti-loosening groove 5 is parallel to the axial direction of the U-shaped anti-slip bolt assembly, which can also be understood as: the length direction of the anti-loosening groove 5 is parallel to the thickness direction of the U-shaped anti-slip bolt assembly. This arrangement can achieve the arrangement of multiple anti-loosening grooves 5 at intervals along the circumference, thereby preventing circumferential slippage between the U-shaped anti-slip bolt assembly and the fixed part.

[0040] Furthermore, in some embodiments, the following configurations may be employed: the anti-loosening grooves 5 on the inner side of the non-threaded segment 1.1 are arranged circumferentially along the inner sidewall thereof, with multiple anti-loosening grooves 5 spaced apart along the axial direction of the non-threaded segment 1.1; and the anti-loosening grooves 5 on the inner side of the clamp 2 are arranged circumferentially along the inner sidewall thereof, with multiple anti-loosening grooves 5 spaced apart along the axial direction of the clamp. In this configuration, the anti-loosening grooves 5 on the non-threaded segment 1.1 and the anti-loosening grooves 5 on the clamp 2 are arranged circumferentially around the fixed part, which can better prevent vertical slippage between the U-shaped anti-slip bolt assembly and the fixed part (i.e., the U-shaped anti-slip bolt assembly slides along the axial direction of the fixed part).

[0041] Of course, it is not excluded that in certain embodiments, the arrangement of the anti-loosening grooves 5 is as follows: the inner side of the non-threaded section 1.1 is provided with anti-loosening grooves 5 parallel to the axis of the U-shaped anti-slip bolt assembly, and also provided with anti-loosening grooves 5 along the circumference of the inner side wall of the non-threaded section 1.1; the inner side of the clamp 2 is provided with anti-loosening grooves 5 parallel to the axis of the U-shaped anti-slip bolt assembly, and also provided with anti-loosening grooves 5 along the circumference of the inner side wall of the clamp 2. With this arrangement, axial and / or circumferential slippage between the U-shaped anti-slip bolt assembly and the fixed part can be prevented.

[0042] like Figure 2 As shown, the cross section of the non-threaded section 1.1 is flat, that is, the cross section is elliptical; the non-threaded section 1.1 is set to a flat shape to increase the contact area between the U-shaped screw 1 and the fixed part, thereby achieving a better anti-slip effect.

[0043] Preferably, the threaded section 1.2 and the non-threaded section 1.1 are integrally formed. The U-shaped screw 1 is made from round steel. After threads are machined onto each end of the round steel (i.e., the threaded section 1.2), the center portion is pressed into a flat shape (i.e., the non-threaded section 1.1), and finally bent into the U-shaped screw 1. The integral structure of the U-shaped screw 1 provides excellent structural integrity and simplifies the process compared to welding the threaded and non-threaded sections.

[0044] Preferably, the fixed part is provided with a limiting groove, into which the end of the stop bolt 3 is inserted. Insertion of the end of the stop bolt 3 into the limiting groove can further prevent relative movement (i.e., slipping) between the U-shaped anti-slip bolt assembly and the fixed part. Since the end of the stop bolt 3 is inserted into the fixed part, both axial and circumferential movement between the U-shaped anti-slip bolt assembly and the fixed part is limited, thereby eliminating the possibility of slipping between the U-shaped anti-slip bolt assembly and the fixed part.

[0045] See also Figure 1 The nut assembly 4 includes a flat washer 4.1, an elastic washer 4.2, and a fastening nut 4.3. The flat washer 4.1 is placed against the clamp 2, and the elastic washer 4.2 is placed between the flat washer 4.1 and the fastening nut 4.3. The flat washer 4.1 ensures that the fastening force of the fastening nut 4.3 acts evenly on the clamp 2, while the elastic washer 4.2 prevents the fastening nut 4.3 from loosening. Furthermore, in some embodiments, the fastening nut 4.3 may be a locknut.

[0046] Preferably, the clamp 2 is made of aluminum alloy and is obtained by cutting the aluminum alloy. The aluminum alloy has the characteristics of high strength and corrosion resistance and is lighter than steel, so that the U-shaped anti-slip bolt assembly has smaller mass and higher structural strength.

[0047] Preferably, the U-shaped anti-slip bolt assembly in this embodiment is used to fasten a cylindrical fixed part, which may be a pipe or the like.

[0048] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A U-shaped anti-slip bolt assembly, characterized in that: include: A U-shaped screw (1) comprises a non-threaded section (1.1) and a threaded section (1.2), wherein the two threaded sections (1.2) are respectively arranged at both ends of the non-threaded section (1.1) to form a U-shaped structure, and an anti-loosening tooth groove (5) is provided on the inner side of the non-threaded section (1.1); A clamp (2), both ends of the clamp (2) are provided with through holes, and the center thereof is provided with a threaded hole; the clamp (2) is sleeved on the two threaded sections (1.2) through the two through holes, and an anti-loosening tooth groove (5) is provided on the inner side of the clamp (2); A fixing bolt (3), wherein the fixing bolt (3) is screwed into the threaded hole and an end portion thereof abuts against a fixed part between the U-shaped screw rod (1) and the clamp (2); A nut assembly (4) is provided on the threaded section (1.2), and the nut assembly (4) is used to achieve the clamping (2) and the U-shaped screw (1) to cooperate and clamp the fixed part.

2. The U-shaped anti-slip bolt assembly according to claim 1, characterized in that: The inner side surface of the clamp (2) is an arc surface, and the clamp (2) is provided with the anti-loosening tooth groove (5) on the arc surface.

3. The U-shaped anti-slip bolt assembly according to claim 1, characterized in that: The cross section of the non-threaded section (1.1) is flat.

4. The U-shaped anti-slip bolt assembly according to claim 3, characterized in that: The threaded section (1.2) and the non-threaded section (1.1) are an integrated structure.

5. The U-shaped anti-slip bolt assembly according to claim 4, characterized in that: The raw material of the U-shaped screw (1) is round steel, and the non-threaded section (1.1) is pressed into a flat shape.

6. The U-shaped anti-slip bolt assembly according to claim 1, characterized in that: A limiting groove is provided on the fixed part, and after the fixing bolt (3) is screwed into the threaded hole, its end portion is inserted into the limiting groove.

7. The U-shaped anti-slip bolt assembly according to claim 1, characterized in that: The nut assembly (4) comprises a flat washer (4.1), an elastic washer (4.2) and a fastening nut (4.3); the flat washer (4.1) is arranged close to the clamp (2); and the elastic washer (4.2) is arranged between the flat washer (4.1) and the fastening nut (4.3).

8. The U-shaped anti-slip bolt assembly according to any one of claims 1 to 7, characterized in that: The length direction of the anti-loosening tooth groove (5) is parallel to the axial direction of the U-shaped anti-slip bolt assembly.

9. The U-shaped anti-slip bolt assembly according to any one of claims 1 to 7, characterized in that: The anti-loosening tooth grooves (5) on the inner side of the non-threaded section (1.1) are arranged along the circumference of the inner side wall thereof, and the plurality of anti-loosening tooth grooves (5) are arranged at intervals along the axial direction of the non-threaded section (1.1); the anti-loosening tooth grooves (5) on the inner side of the clamp (2) are arranged along the circumference of the inner side wall thereof, and the plurality of anti-loosening tooth grooves (5) are arranged at intervals along the axial direction of the clamp (2).

10. The U-shaped anti-slip bolt assembly according to any one of claims 1 to 7, characterized in that: The inner side of the non-threaded section (1.1) is provided with an anti-loosening tooth groove (5) parallel to the axial direction of the U-shaped anti-slip bolt assembly, and also provided with an anti-loosening tooth groove (5) along the circumference of the inner side wall of the non-threaded section (1.1); the inner side of the clamp (2) is provided with an anti-loosening tooth groove (5) parallel to the axial direction of the U-shaped anti-slip bolt assembly, and also provided with an anti-loosening tooth groove (5) along the circumference of the inner side wall of the clamp (2).

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