A flat position square neck bolt structure

Abstract

A kind of flat position square neck bolt structure, including: bolt and sleeve and rubber plug;The bolt includes nut and screw rod.The screw rod is arranged in the center of the bottom of the nut, square screw neck is arranged between the nut and screw rod, and the rod body of the screw rod is provided with screw thread along horizontal transverse equidistance;The central part of the sleeve body is provided with square opening, the central part of the bottom of the sleeve is provided with square step, the bottom of the square step is provided with hollow rubber ring body, and the inner cavity of the hollow rubber ring body is provided with glue storage groove.The utility model discloses a kind of flat position square neck bolt structure, through design in the hollow rubber ring body of square step bottom, and the glue storage groove designed in its inner cavity and glue inside it, let glue can directly flow out in screw rod and screw hole, make the connection between screw rod and screw hole more closely, and realize the simultaneous smearing of glue of variable thread connection.

Description

Technical Field

[0001] This utility model relates to the technical field of square neck bolts, and in particular to a flat square neck bolt structure. Background Technology

[0002] The national standard GB / T12-2013 for round head square neck bolts was jointly issued by the General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China and the Standardization Administration of China, and officially implemented on March 1, 2014. This standard is under the jurisdiction of the China Machinery Industry Federation and belongs to the fastener technical specification system (Chinese Standard Classification J13) in the machinery industry. As the current effective version, it replaces earlier versions such as GB / T14-1998 issued in 1998 and is aligned with International Standard Classification 21.060.10. The standard covers the structural parameters, performance requirements, and testing specifications of bolts, and is applicable to the design and application of fasteners in the field of mechanical equipment manufacturing.

[0003] Currently, after the existing flat-position square neck bolts are threaded into the threaded hole, glue is applied to the connection to enhance its tightness and prevent loosening. However, it is difficult to guide the glue into the threaded hole after the connection is completed. Therefore, a flat-position square neck bolt structure is designed to guide the glue into the threaded hole and the bolt during the threaded connection, making the connection tighter. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a flat-position square neck bolt structure.

[0005] The objective of this utility model is achieved through the following technical solution:

[0006] A flat-position square neck bolt structure includes: a bolt, a threaded sleeve, and a rubber plug; the bolt includes a nut and a shank. The shank is located at the center of the bottom of the nut, and a square threaded neck is provided between the nut and the shank. Threads are provided at equal intervals along the horizontal transverse direction on the shank. A square opening is provided at the center of the threaded sleeve, and a square step is provided at the center of the bottom of the threaded sleeve. A hollow rubber ring is provided at the bottom of the square step, and a rubber storage groove is provided in the inner cavity of the hollow rubber ring. A first nozzle and a second nozzle are provided at equal intervals on the bottom and inner ring of the hollow rubber ring.

[0007] In one embodiment, the square screw neck is located at the bottom of the nut and the top of the screw, and is integrally formed therewith. The side of the square screw neck near the nut is square, while the side near the screw is round.

[0008] In one embodiment, the top view of the threaded sleeve is circular, and the shape and size of the square opening in the center of the top view match the shape and size of the square top view of the top of the square threaded neck.

[0009] In one embodiment, the shape and size of the top view of the square step are the same as the shape and size of the top view of the square opening, and the square step and the square opening are perpendicular to each other.

[0010] In one embodiment, the shape and size of the top view of the hollow rubber ring are the same as the shape and size of the top view of the square step, and the thickness of the hollow rubber ring is 0.7cm to 1cm.

[0011] In one embodiment, the first nozzle is disposed on the back of the square step and is equidistantly disposed on the left and right sides of the back of the square step, while the second nozzle is disposed in the inner wall of the hollow rubber ring and is equidistantly disposed on its inner wall.

[0012] In one embodiment, the first nozzle and the second nozzle have the same diameter, and both the first nozzle and the second nozzle are made of rubber.

[0013] In one embodiment, the first nozzle and the second nozzle are provided with a stopper on the side away from the hollow rubber ring. The inner cavity of the stopper is provided with an annular groove. The diameter of the side of the rubber stopper matches the diameter of the side of the stopper. A sealing ring is provided on the column of the rubber stopper near the stopper.

[0014] Compared with the prior art, the present invention has at least the following advantages:

[0015] This utility model discloses a flat-position square neck bolt structure. Through the design of a hollow rubber ring at the bottom of a square step, and the glue storage groove and glue inside its cavity, combined with the design of a first and second spray nozzle, when the bolt is threaded into the threaded hole at its top, the bottom of the threaded sleeve is subjected to pressure from both above and below. This forces the glue in the hollow rubber ring cavity to be squeezed out from the first and second spray nozzles, allowing the glue to flow directly into the screw and threaded hole. This results in a tighter connection between the screw and the threaded hole, and achieves simultaneous application of glue while making the threaded connection more flexible. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a three-dimensional structural diagram of the bolt from the front of this utility model;

[0018] Figure 2 This is a three-dimensional structural diagram of the front of the screw sleeve of this utility model;

[0019] Figure 3 This is a three-dimensional structural diagram of the back of the screw sleeve of this utility model;

[0020] Figure 4 This is a front sectional view of the screw sleeve of this utility model;

[0021] Figure 5 This utility model Figure 4 A schematic diagram of the structure at point A.

[0022] In the diagram: 1. Bolt; 11. Nut; 12. Square threaded neck; 13. Threaded rod; 2. Threaded sleeve; 21. Square opening; 22. Hollow rubber ring; 221. First nozzle; 222. Second nozzle; 223. Glue storage tank; 224. Rubber plug; 225. Annular groove; 226. Sealing ring; 23. Square step. Detailed Implementation

[0023] To facilitate understanding of this utility model, a more comprehensive description will be provided below with reference to the accompanying drawings. The drawings illustrate preferred embodiments of this utility model.

[0024] like Figure 1-5 As shown, a flat-position square neck bolt structure includes: a bolt 1, a threaded sleeve 2, and a rubber plug 224; the bolt 1 includes a nut 11 and a screw 13; a square threaded neck 12 is provided between the nut 11 and the screw 13, and threads are provided at equal intervals along the horizontal direction on the body of the screw 13; a square opening 21 is provided in the center of the sleeve body of the threaded sleeve 2, a square step 23 is provided in the center of the bottom of the threaded sleeve 2, a hollow rubber ring 22 is provided on the bottom of the square step 23, a rubber storage groove 223 is provided in the inner cavity of the hollow rubber ring 22, and a first nozzle 221 and a second nozzle 222 are provided at equal intervals on the bottom and inner ring of the hollow rubber ring 22.

[0025] It should be noted that when the bolt needs to be threaded into the threaded hole, the user first puts the threaded sleeve 2 on the top of the bolt 13, so that the square opening 21 can engage with the square threaded neck 12. At this time, rotate the nut 11 to thread it into the threaded hole. When it is rotated to a position close to the square threaded neck 12, the hollow rubber ring 22 at the bottom of the threaded sleeve 2 will be squeezed by the upper and lower pressure and deformed. This causes the glue inside to be sprayed directly from the first nozzle 221 and the second nozzle 222 into the bolt 13 and the threaded hole due to the pressure. At the same time, it is sprayed onto the top of the hollow rubber ring 22 and the threaded hole body to enhance the tightness of the connection.

[0026] like Figure 1-5 As shown in one embodiment, a square screw neck 12 is located at the bottom of the nut 11 and the top of the screw 13, and is integrally formed with them. The side of the square screw neck 12 near the nut 11 is square, while the side near the screw 13 is round. The top view of the screw sleeve 2 is circular, and the shape and size of the square opening 21 in its center matches the shape and size of the square top view of the top of the square screw neck 12. It should be noted that the connection between the square screw neck 12 and the screw 13 is tapered. This design allows the screw sleeve 2 and the screw 13 to cooperate, making the overall structure more resilient. Even if the head breaks off, the tapered square neck will still bear the force, preventing structural failure.

[0027] like Figure 1-5 As shown, in one embodiment, the shape and size of the top view of the square step 23 are the same as the shape and size of the top view of the square opening 21, and the square step 23 and the square opening 21 are perpendicularly corresponding to each other. It should be noted that this design allows the threaded sleeve 2 to be fitted onto the square threaded neck 12.

[0028] like Figure 1-5 As shown, in one embodiment, the shape and size of the hollow rubber ring 22 in top view are the same as the shape and size of the square step 23 in top view, and the thickness of the hollow rubber ring 22 is 0.7cm to 1cm. A first nozzle 221 is disposed on the back of the square step 23 and is equidistantly arranged along the left and right sides of the back of the square step 23. A second nozzle 222 is disposed in the inner wall of the hollow rubber ring 22 and is equidistantly arranged along its inner wall. The first nozzle 221 and the second nozzle 222 have the same diameter, and both are made of rubber. It should be noted that this design allows the hollow rubber ring 22 to deform when subjected to external pressure, causing the glue inside to be ejected from the first nozzle 221 and the second nozzle 222 due to pressure, and it can return to its original shape when no external pressure is applied.

[0029] like Figure 1-5As shown in one embodiment, the first nozzle 221 and the second nozzle 222 have a stopper on the side away from the hollow rubber ring 22. An annular groove 225 is provided in the inner cavity of this stopper. The diameter of the side of the rubber stopper 224 matches the diameter of the side of the stopper, and a sealing ring 226 is provided on the column of the rubber stopper 224 near the stopper. It should be noted that the sealing ring 226 on the rubber stopper 224 and the annular groove 225 are connected by an interference fit, thus blocking the nozzle. When pressure is applied and the rubber stopper 224 is deformed, it can be forced open, allowing the adhesive to be sprayed from the nozzle.

[0030] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A flat-position square neck bolt structure, characterized in that, include: Bolt (1) and threaded sleeve (2) and rubber plug (224); the bolt (1) includes a nut (11) and a screw (13); the screw (13) is located at the center of the bottom of the nut (11), and a square thread neck (12) is provided between the nut (11) and the screw (13), and threads are provided at equal intervals along the horizontal direction on the body of the screw (13); a square opening (21) is provided in the center of the sleeve body of the threaded sleeve (2), a square step (23) is provided at the center of the bottom of the threaded sleeve (2), a hollow rubber ring (22) is provided on the bottom of the square step (23), a rubber storage groove (223) is provided in the inner cavity of the hollow rubber ring (22), and a first nozzle (221) and a second nozzle (222) are provided at equal intervals on the bottom and inner ring of the hollow rubber ring (22).

2. The flat-position square neck bolt structure according to claim 1, characterized in that, The square screw neck (12) is located at the bottom of the nut (11) and the top of the screw (13), and is integrally formed with it. The side of the square screw neck (12) near the nut (11) is square, while the side near the screw (13) is round.

3. The flat-position square neck bolt structure according to claim 1, characterized in that, The top view of the threaded sleeve (2) is circular, and the shape and size of the top view of the square opening (21) in the center of it are consistent with the shape and size of the square top view of the top of the square threaded neck (12).

4. The flat-position square neck bolt structure according to claim 1, characterized in that, The shape and size of the top view of the square step (23) are the same as the shape and size of the top view of the square opening (21), and the square step (23) and the square opening (21) are perpendicular to each other.

5. The flat-position square neck bolt structure according to claim 1, characterized in that, The shape and size of the top view of the hollow rubber ring (22) are the same as the shape and size of the top view of the square step (23), and the thickness of the hollow rubber ring (22) is 0.7cm~1cm.

6. The flat-position square neck bolt structure according to claim 1, characterized in that, The first nozzle (221) is disposed on the back of the square step (23) and is disposed at equal distances along the left and right sides of the back of the square step (23). The second nozzle (222) is disposed in the inner wall of the hollow rubber ring (22) and is disposed at equal distances along its inner wall.

7. The flat-position square neck bolt structure according to claim 1, characterized in that, The first nozzle (221) and the second nozzle (222) have the same diameter, and both the first nozzle (221) and the second nozzle (222) are made of rubber.

8. The flat-position square neck bolt structure according to claim 1, characterized in that, The first nozzle (221) and the second nozzle (222) are provided with a plug on the side away from the hollow rubber ring (22). The inner cavity of the plug is provided with an annular groove (225). The diameter of the side of the rubber plug (224) matches the diameter of the side of the plug. A sealing ring (226) is provided on the column of the rubber plug (224) near the plug.

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