High-strength ball stud

Abstract

The utility model relates to the technical field of ball head bolts, and discloses a high-strength ball head bolt which comprises a threaded column, a reinforcing rod is arranged in the threaded column, the upper end of the reinforcing rod penetrates through the threaded column to the upper end of the reinforcing rod, and a first square block is arranged on the outer side wall of the reinforcing rod at the upper end of the threaded column in a sleeved mode. The outer side wall of the reinforcing rod at the upper end of the first square block is sleeved with a base table, the outer side wall of the reinforcing rod on the upper end face of the base table is sleeved with a supporting column, a chamfer is formed in the upper portion of the outer side wall of the supporting column, a second square block is arranged at the upper end of the first square block, and a storage groove is formed in the center of the lower end face of the second square block. And a splicing structure is arranged in the storage groove. According to the utility model, through the cooperation of the limiting block and the limiting groove, when the threaded column is rotated by rotating the ball head body, the ball head body and the threaded column cannot rotate due to unstable installation, and then the overall strength is improved through the reinforcing rod, so that the use safety is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of ball head bolts, in particular to a high-strength ball head bolt. Background Art

[0002] Bolts are mechanical parts, which are cylindrical threaded fasteners equipped with nuts. Ball head bolts are one of them. They are fasteners with a spherical head on one end and a thread on the other end. They are usually used in assembly positions with more disassembly and friction.

[0003] During the use of existing high-strength ball head bolts, due to frequent disassembly and friction, ball head bolts for replacing the ball head have also appeared on the market. During the process of replacing the ball head, it is inconvenient to replace due to the special structure, and the friction between the entire ball head and the bolt will be reduced, resulting in an unstable connection. Therefore, technical personnel in this field provide a high-strength ball head bolt to solve the problems raised in the above background technology. Utility Model Content

[0004] The utility model aims to solve the shortcomings existing in the prior art and proposes a high-strength ball head bolt. When replacing, the screw rod is rotated in the opposite direction by a screwdriver to separate the end of the screw rod from the threaded hole, and then the screw rod is directly pulled out to pull out the ball head body. When replacing the ball head body, the ball head body is guided and installed by chamfering, two limit blocks enter the inside of the two limit grooves, and then the screw rod passes through the first installation hole, and enters the second installation hole after being guided by the guide groove, and then the screw is rotated by a screwdriver to be threadedly connected to the inside of the threaded hole, so as to facilitate the replacement and installation of the ball head body. While facilitating replacement, the stability of the connection between the ball head body and the connection is improved to prevent the ball head body from rotating.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high-strength ball head bolt, comprising a threaded column, a reinforcing rod is arranged inside the threaded column, the upper end of the reinforcing rod passes through the threaded column to the upper end of the reinforcing rod, a first square block is sleeved on the outer side wall of the reinforcing rod at the upper end of the threaded column, a base is sleeved on the outer side wall of the reinforcing rod at the upper end of the first square block, a pillar is sleeved on the upper side wall of the reinforcing rod on the upper surface of the base, a chamfer is provided on the upper side wall of the pillar, a second square block is provided on the upper end of the first square block, a storage groove is provided at the center of the lower end face of the second square block, a splicing structure is provided inside the storage groove, a ball head body is sleeved at the upper side of the pillar, a groove is provided at the center of the lower end face of the ball head body, a first mounting hole is provided at the center of one side wall of the ball head body, and a mounting structure is provided inside the first mounting hole. Limit blocks are provided at the lower parts of the front and rear inner side walls of the groove, and limit grooves are provided at the upper parts of the center of the front and rear end faces of the pillar;

[0006] Through the above technical solution, through the cooperation of the limit block and the limit groove, after the ball head body is installed, when the threaded column is rotated by rotating the ball head body, the ball head body and the threaded column will not rotate due to unstable installation. The overall strength is improved by the reinforcement rod, thereby improving the safety of use.

[0007] Further, the mounting structure includes a screw rod, a second mounting hole and a threaded hole, the second mounting hole is provided on a side wall of a pillar located on one side of the first mounting hole, and the end portion sequentially passes through a side wall of the pillar and a side wall of the reinforcing rod to pass to the other side wall of the pillar, the threaded hole is provided on an inner side wall of a groove located on one side of the second mounting hole, the screw rod is arranged inside the first mounting hole, the end portion of the screw rod sequentially passes through the first mounting hole and the second mounting hole, and the end portion is threadedly connected inside the threaded hole;

[0008] Through the above technical solution, the ball head body is fixed by passing the screw through the first mounting hole and the second mounting hole and then threading the screw with the threaded hole.

[0009] Furthermore, a guide groove is provided inside the second mounting hole on one side;

[0010] The above technical solution makes it easier to guide the screw.

[0011] Furthermore, the inner side wall of the second mounting hole is a smooth hole wall;

[0012] Through the above technical solution, the thread at the end of the screw rod directly passes through the second mounting hole to be connected with the threaded hole.

[0013] Furthermore, the base and the storage tank are both circular in shape, and the storage tank is sleeved on the outside of the base;

[0014] The above technical solution facilitates the base and the second square block to be joined together.

[0015] Furthermore, the splicing structure includes two inner circle slots and two spheres, the two inner circle slots are arranged at the front and rear ends of the center of the upper end surface of the machine base, and the two spheres are respectively arranged at the upper center of the front and rear inner side walls of the storage tank, and are respectively clamped in the two inner circle slots;

[0016] Through the above technical solution, the first square block and the second square block can be conveniently spliced ​​together by inserting the two spheres into the two inner circle slots.

[0017] Furthermore, the reinforcing rod is made of chromium-nickel alloy steel;

[0018] Through the above technical solution, the chromium-nickel alloy steel has higher impact resistance and shear resistance, and the overall strength is improved.

[0019] The utility model has the following beneficial effects:

[0020] 1. In the utility model, when the high-strength ball head bolt is replaced, the screw rod is rotated in the opposite direction by a screwdriver to separate the end of the screw rod from the threaded hole, and then the screw rod is directly pulled out to pull out the ball head body. When the ball head body is replaced, the ball head body is guided and installed by chamfering, and the two limit blocks enter the two limit grooves. Then the screw rod passes through the first installation hole and enters the second installation hole after being guided by the guide groove. Then the screw rod is rotated by a screwdriver to be threaded and connected to the inside of the threaded hole, which is convenient for replacing and installing the ball head body. While facilitating replacement, the stability of the connection between the ball head body and the connection is improved to prevent the ball head body from rotating.

[0021] 2. In the utility model, during installation, two spheres are inserted into the two inner circle grooves, the first square block and the second square block are spliced ​​together, and then the ball head body is installed. When the first square block and the second square block are worn, the ball head body can be removed and the second square block can be pried up for replacement, which is convenient for long-term use.

[0022] 3. In the present invention, the reinforcing rod made of chromium-nickel alloy steel is finally used to improve the overall shear resistance and impact resistance, thereby effectively improving the service strength of the ball head bolt. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A three-dimensional diagram of a high-strength ball stud proposed by the utility model;

[0024] Figure 2 This is a three-dimensional exploded view of a high-strength ball stud proposed by the utility model;

[0025] Figure 3 This is a front cross-sectional view of a high-strength ball stud proposed by the utility model;

[0026] Figure 4 for Figure 3 A magnified schematic diagram of center A.

[0027] Legend:

[0028] 1. Threaded column; 2. First square block; 3. Second square block; 4. Mounting structure; 401. First mounting hole; 402. Screw; 403. Guide groove; 404. Second mounting hole; 405. Threaded hole; 5. Ball head body; 6. Pillar; 7. Base; 8. Groove; 9. Splicing structure; 901. Inner circle slot; 902. Storage slot; 903. Sphere; 10. Reinforcing rod; 11. Chamfer; 12. Limiting groove; 13. Limiting block. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] Reference Figure 1-4 The utility model provides an embodiment: a high-strength ball head bolt, including a threaded column 1, a reinforcing rod 10 is arranged inside the threaded column 1, and the reinforcing rod 10 is used to improve the overall strength and improve the safety of use. The upper end of the reinforcing rod 10 passes through the threaded column 1 to the upper end of the reinforcing rod 10, and a first square block 2 is sleeved on the outer wall of the reinforcing rod 10 at the upper end of the threaded column 1. A base 7 is sleeved on the outer wall of the reinforcing rod 10 at the upper end of the first square block 2. A pillar 6 is sleeved on the outer wall of the reinforcing rod 10 on the upper end face of the base 7. A chamfer 11 is opened at the upper part of the outer wall of the pillar 6, and a second square block 3 is provided on the upper end of the first square block 2. A storage groove 902 is provided at the center of the lower end face of the second square block 3. The storage groove 90 2 is provided with a splicing structure 9, through which the first square block 2 and the second square block 3 are conveniently spliced, a ball head body 5 is sleeved at the upper part of the outer side of the pillar 6, a groove 8 is opened at the center of the lower end surface of the ball head body 5, a first mounting hole 401 is opened at the center of one side wall of the ball head body 5, and a mounting structure 4 is provided inside the first mounting hole 401, and both the front and rear inner side walls of the groove 8 are provided with a limit block 13 at the lower part, and both the front and rear end surfaces of the pillar 6 are provided with a limit groove 12 at the upper part. Through the cooperation of the limit block 13 and the limit groove 12, after the ball head body 5 is installed, when the threaded column 1 is rotated by rotating the ball head body 5, the ball head body 5 and the threaded column 1 will not rotate due to unstable installation.

[0031] The mounting structure 4 includes a screw rod 402, a second mounting hole 404 and a threaded hole 405. The second mounting hole 404 is provided on a side wall of the support 6 located on one side of the first mounting hole 401, and the end portion thereof sequentially passes through a side wall of the support 6 and a side wall of the reinforcing rod 10 to pass to the other side wall of the support 6. The threaded hole 405 is provided on the inner side wall of the groove 8 located on one side of the second mounting hole 404. The screw rod 402 is provided inside the first mounting hole 401, and the end portion of the screw rod 402 sequentially passes through the first mounting hole 401 and the second mounting hole 401. The ball head body 5 is fixed by passing the screw rod 402 through the first mounting hole 401 and the second mounting hole 404 and then threadedly connected to the threaded hole 405. A guide groove 403 is provided on one side of the second mounting hole 404 to facilitate guiding the screw rod 402. The inner wall of the second mounting hole 404 is a smooth hole wall, so that the thread at the end of the screw rod 402 can directly pass through the second mounting hole 404 and be connected to the threaded hole 405.

[0032] The base 7 and the storage tank 902 are both circular in shape. The storage tank 902 is sleeved on the outside of the base 7 to facilitate the base 7 and the second square block 3 to be spliced ​​together. The reinforcing rod 10 is made of chromium-nickel alloy steel, which has high impact resistance and shear resistance, thereby improving the overall strength.

[0033] The splicing structure 9 includes two inner circular grooves 901 and two spheres 903. The two inner circular grooves 901 are arranged at the front and rear ends of the center of the upper end surface of the machine base 7. The two spheres 903 are respectively arranged at the upper center of the front and rear inner walls of the storage groove 902, and are respectively clamped in the two inner circular grooves 901. It is convenient to splice the first square block 2 and the second square block 3 together by inserting the two spheres 903 into the two inner circular grooves 901.

[0034] Working principle: During installation, insert the two spheres 903 into the two inner circle grooves 901, splice the first square block 2 and the second square block 3 together, and then install the ball head body 5. When the first square block 2 and the second square block 3 are worn, remove the ball head body 5 and then pry up the second square block 3 for replacement, which is convenient for long-term use. Use a screwdriver to rotate the screw rod 402 in the opposite direction to separate the end of the screw rod 402 from the threaded hole 405, and then directly pull out the screw 402 to pull out the ball head body 5. When replacing the ball head body 5, use the chamfer 11 to guide the installation of the ball head body. The ball head body 5 is convenient for replacement and installation. While facilitating replacement, the stability of the connection between the ball head body 5 and the connection is improved to prevent the ball head body 5 from rotating. Finally, the reinforcing rod 10 made of chromium-nickel alloy steel is used to improve the overall shear resistance and impact resistance, thereby effectively improving the strength of the ball head bolt.

[0035] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A high-strength ball stud, comprising a threaded column (1), characterized in that: A reinforcing rod (10) is provided inside the threaded column (1), and the upper end of the reinforcing rod (10) passes through the threaded column (1) to the upper end of the reinforcing rod (10). A first square block (2) is sleeved on the outer wall of the reinforcing rod (10) at the upper end of the threaded column (1), and a base (7) is sleeved on the outer wall of the reinforcing rod (10) at the upper end of the first square block (2). A pillar (6) is sleeved on the outer wall of the reinforcing rod (10) at the upper end face of the base (7), and a chamfer (11) is provided on the upper part of the outer wall of the pillar (6). A second square block (3) is provided on the upper end of the first square block (2), and the second square block (3) is sleeved on the outer wall of the reinforcing rod (10) at the upper end face of the base (7). A storage groove (902) is provided at the center of the lower end surface of the block (3), and a splicing structure (9) is provided inside the storage groove (902). A ball head body (5) is sleeved at the upper outer side of the support (6), and a groove (8) is provided at the center of the lower end surface of the ball head body (5). A first mounting hole (401) is provided at the center of one side wall of the ball head body (5), and a mounting structure (4) is provided inside the first mounting hole (401). Limit blocks (13) are provided at the lower parts of the front and rear inner side walls of the groove (8), and limit grooves (12) are provided at the upper parts of the centers of the front and rear end surfaces of the support (6).

2. A high-strength ball stud according to claim 1, characterized in that: The mounting structure (4) comprises a screw rod (402), a second mounting hole (404) and a threaded hole (405); the second mounting hole (404) is provided on a side wall of a pillar (6) located on one side of the first mounting hole (401), and an end portion thereof sequentially penetrates through a side wall of the pillar (6) and a side wall of a reinforcing rod (10) to reach the other side wall of the pillar (6); the threaded hole (405) is provided on an inner side wall of a groove (8) located on one side of the second mounting hole (404); the screw rod (402) is arranged inside the first mounting hole (401), and an end portion of the screw rod (402) sequentially penetrates through the first mounting hole (401) and the second mounting hole (404), and the end portion is threadedly connected inside the threaded hole (405).

3. A high-strength ball stud according to claim 2, characterized in that: A guide groove (403) is provided inside the second mounting hole (404) on one side.

4. A high-strength ball stud according to claim 2, characterized in that: The inner side wall of the second mounting hole (404) is a smooth hole wall.

5. The high-strength ball stud according to claim 1, characterized in that: The base (7) and the storage tank (902) are both circular in shape, and the storage tank (902) is sleeved on the outside of the base (7).

6. The high-strength ball stud according to claim 1, characterized in that: The splicing structure (9) comprises two inner circular grooves (901) and two spheres (903); the two inner circular grooves (901) are arranged at the front and rear ends of the center of the upper end surface of the machine base (7); the two spheres (903) are respectively arranged at the upper center of the front and rear inner side walls of the storage groove (902), and are respectively clamped inside the two inner circular grooves (901).

7. The high-strength ball stud according to claim 1, characterized in that: The reinforcing rod (10) is made of chromium-nickel alloy steel.

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