Hexagonal head bolt capable of preventing thread from slipping

Abstract

The utility model discloses a hexagon head bolt capable of preventing thread slipping, which comprises a bolt cap, a bolt rod is fixedly connected to the lower surface of the bolt cap, an inner hexagonal groove and a cross groove are arranged on the upper surface of the bolt cap, an oil filling hole is arranged in the inner hexagonal groove of the bolt cap, a connecting groove is arranged in the bolt rod, and the cross groove is arranged in the connecting groove. The outer surface of the bolt rod is movably connected with a balance block, the upper surface of the balance block is provided with an open hole, the balance block is provided with a threaded groove, and the lower surface of the bolt cap is fixedly connected with an annular plate. By means of the components, when the bolt is installed, the normal position of the bolt does not deflect; lubricating oil can be injected into the threaded parts of the bolt and the nut through the oil injection hole, friction and abrasion are reduced, thread slipping is prevented, and the service life of the bolt is prolonged by reducing abrasion and providing better lubrication. And multiple disassembly and assembly are carried out through an internal hexagonal wrench or a cross screwdriver, so that the disassembly multiplicity is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of anti-thread stripping bolts, in particular to a hexagon head bolt for preventing thread stripping. Background Art

[0002] Bolt: A mechanical part, a cylindrical threaded fastener used with a nut. A type of fastener composed of a head and a screw rod, which needs to cooperate with a nut to be used for firmly connecting two parts with through holes. This connection form is called bolt connection. If the nut is unscrewed from the bolt, the two parts can be separated, so the bolt connection belongs to a detachable connection. Bolts are convenient and fast to use and can play a firm and stable connection role. Therefore, they have played an indispensable role in daily life and industrial production. Bolts of all sizes use their stable thread connection effect to provide the function of connecting components for various products. When the existing bolts are used, there may be a situation of thread stripping due to skew during tightening installation or excessive tightening force. Once the bolt threads are stripped, not only the fastening effect is greatly reduced, but it is also very troublesome to disassemble the stripped bolt, which will cause great inconvenience to people's production and life.

[0003] The Chinese Patent Network discloses a hexagon head bolt for preventing thread stripping with the label "CN203548490U". By designing a guiding smooth rod with a diameter smaller than the outer thread diameter of the bolt at one end of the thread engagement part away from the bolt head, the guiding smooth rod conducts vertical guiding before the bolt and the threaded hole are engaged, ensuring the vertical force of the bolt and reducing the probability of thread stripping. However, the anti-thread stripping effect is limited during use, and it is difficult to screw out after the bolt has been used for a long time. Content of the Utility Model

[0004] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art, and provide a hexagon head bolt for preventing thread stripping. Through the cooperation of the bolt cap, bolt rod, internal hexagon groove, cross groove, oil injection hole, connection groove, balance block, opening, thread groove and annular plate, the bolt can be kept in a correct position without skew during installation; through the oil injection hole, lubricating oil can be injected into the threaded parts of the bolt and the nut to reduce friction and wear, prevent thread stripping, extend the service life of the bolt by reducing wear and providing better lubrication; it can be disassembled and assembled multiple times with an internal hexagon wrench or a cross screwdriver, improving the multiplicity of disassembly.

[0005] The present utility model also provides a hexagon head bolt with the above anti-thread slipping function, including: a bolt head, a bolt rod is fixedly connected to the lower surface of the bolt head, an internal hexagon groove and a cross groove are provided on the upper surface of the bolt head, an oil injection hole is arranged in the internal hexagon groove of the bolt head, a connecting groove is arranged in the bolt rod, the connecting groove is communicated with the oil injection hole, a balance block is movably connected to the outer surface of the bolt rod, an opening is arranged on the upper surface of the balance block, a thread groove is arranged on the balance block, and an annular plate is fixedly connected to the lower surface of the bolt head. Through the above components, a horizontal balance block is provided, which can keep the bolt in a correct position without deviation during bolt installation; lubricating oil can be injected into the threaded parts of the bolt and nut through the oil injection hole, reducing friction and wear, preventing thread slipping, and prolonging the service life of the bolt by reducing wear and providing better lubrication; multiple disassembly and assembly can be carried out with an internal hexagon wrench or a cross screwdriver, improving the multiplicity of disassembly.

[0006] For the hexagon head bolt with anti-thread slipping according to the present utility model, a first thread is arranged in the opening, and the balance block is threadedly connected to the bolt rod. Through the above components, the bolt rod can be inserted smoothly.

[0007] For the hexagon head bolt with anti-thread slipping according to the present utility model, anti-slip threads are arranged in the internal hexagon groove and the cross groove. Through the above components, the disassembly work is facilitated and the thread slipping phenomenon is reduced.

[0008] For the hexagon head bolt with anti-thread slipping according to the present utility model, a protective cover is movably connected to the outer surface of the bolt head, and a handle is fixedly connected to the upper surface of the protective cover. Through the above components, it is convenient to protect the bolt head.

[0009] For the hexagon head bolt with anti-thread slipping according to the present utility model, a second thread is arranged on the outer surface of the annular plate, and the annular plate is movably connected to the thread groove. Through the above components, it is convenient to stabilize the balance block.

[0010] For the hexagon head bolt with anti-thread slipping according to the present utility model, several oil leakage holes are arranged on the outer surface of the bolt rod, and the oil leakage holes are communicated with the connecting groove. Through the above components, it is convenient to inject lubricating oil into the bolt rod and cover the surface.

[0011] For the hexagon head bolt with anti-thread slipping according to the present utility model, a conical head is fixedly connected to the lower surface of the bolt rod, and the conical head is in the shape of a cone. Through the above components, it is convenient to insert the bolt.

[0012] For the hexagon head bolt with anti-thread slipping according to the present utility model, an anti-rust layer is arranged on the outer surfaces of the bolt rod and the bolt head. Through the above components, it is convenient to protect the bolt and prevent the bolt from rusting, which is not convenient for disassembly work.

[0013] Beneficial effects

[0014] 1. Compared with the prior art, for this hexagon head bolt that prevents screw thread from slipping, through the cooperation of the bolt head, bolt rod, inner hexagonal groove and cross groove, it can be disassembled and assembled multiple times with an inner hexagonal wrench or a cross screwdriver, improving the multiplicity of disassembly and facilitating disassembly.

[0015] 2. Compared with the prior art, for this hexagon head bolt that prevents screw thread from slipping, through the cooperation of the bolt head, bolt rod, oil injection hole, connection groove, balance block, opening, thread groove and annular plate, the balance block that can be set can keep the bolt in the correct position without skew during bolt installation; through the oil injection hole, lubricating oil can be injected into the thread parts of the bolt and nut, reducing friction and wear, preventing screw thread from slipping, and possibly extending the service life of the bolt by reducing wear and providing better lubrication. Description of the drawings

[0016] The following further illustrates the present utility model in conjunction with the drawings and embodiments;

[0017] Figure 1 It is the overall structure diagram of the hexagon head bolt that prevents screw thread from slipping of the present utility model;

[0018] Figure 2 It is the schematic diagram of the balance block connection structure of the hexagon head bolt that prevents screw thread from slipping of the present utility model;

[0019] Figure 3 It is the schematic diagram of the internal connection structure of the hexagon head bolt that prevents screw thread from slipping of the present utility model;

[0020] Figure 4 It is the schematic diagram of the top view connection structure of the hexagon head bolt that prevents screw thread from slipping of the present utility model;

[0021] Figure 5 It is the schematic diagram of the protective cover connection structure of the hexagon head bolt that prevents screw thread from slipping of the present utility model.

[0022] Legend description:

[0023] 1. Bolt head; 2. Bolt rod; 3. Inner hexagonal groove; 4. Cross groove; 5. Oil injection hole; 6. Connection groove; 7. Balance block; 8. Opening; 9. Thread groove; 10. Annular plate; 11. First thread; 12. Anti-slip pattern; 13. Protective cover; 14. Handle; 15. Second thread; 16. Oil leakage hole; 17. Conical head. Detailed implementation manners

[0024] 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 function of the drawings is to supplement the description in the text part of the specification, enabling people to intuitively and vividly understand each technical feature and the overall technical solution of the present utility model. However, it should not be construed as a limitation on the protection scope of the present utility model.

[0025] Refer to Figures 1-3 , the hexagon head bolt for preventing screw thread from slipping in the embodiment of the present utility model, as Figure 1 shown, includes: a bolt head 1 for tightening or loosening the bolt. A protective cover 13 is movably connected to the outer surface of the bolt head 1 for protecting the bolt head 1. A handle 14 is fixedly connected to the upper surface of the protective cover 13 for pulling out the protective cover 13. A bolt rod 2 is fixedly connected to the lower surface of the bolt head 1 for connection. An internal hexagon groove 3 and a cross groove 4 are provided on the upper surface of the bolt head 1 for tightening or loosening the bolt. Anti-slip threads 12 are provided in the internal hexagon groove 3 for preventing slipping of the thread. Anti-slip threads 12 are provided in the cross groove 4. A conical head 17 is fixedly connected to the lower surface of the bolt rod 2 for facilitating the insertion of the bolt. The conical head 17 is in the shape of a cone. An anti-rust layer is provided on the outer surfaces of the bolt rod 2 and the bolt head 1 to prevent the bolt rod 2 and the bolt head 1 from rusting, which is not convenient for tightening or loosening.

[0026] An oil injection hole 5 is provided in the internal hexagon groove 3 of the bolt head 1 for injecting lubricating oil. A connection groove 6 is provided in the bolt rod 2 for transporting the lubricating oil. The connection groove 6 is communicated with the oil injection hole 5 to facilitate the transportation of the lubricating oil. A plurality of oil leakage holes 16 are provided on the outer surface of the bolt rod 2 for the lubricating oil to be discharged on the surface of the bolt rod 2. The oil leakage holes 16 are communicated with the connection groove 6 for the lubricating oil to be discharged. A balance block 7 is movably connected to the outer surface of the bolt rod 2 for ensuring that the bolt is in the correct position and does not tilt during installation. An opening 8 is provided on the upper surface of the balance block 7 for the bolt rod 2 to move. A first thread 11 is provided in the opening 8 to facilitate the downward movement of the bolt rod 2. The balance block 7 is threadedly connected to the bolt rod 2. A thread groove 9 is provided on the balance block 7 for the movement of the annular plate 10. An annular plate 10 is fixedly connected to the lower surface of the bolt head 1. A second thread 15 is provided on the outer surface of the annular plate 10. The annular plate 10 is movably connected to the thread groove 9.

[0027] Working principle: When using this device, by placing the balance block 7 in a suitable position to keep the bolt from shifting during screwing, screwing the bolt head 1 to insert the bolt rod 2 into the required place, the threaded cap 1 moves downward, putting the annular plate 10 into the thread groove 9. After installation, the bottom of the threaded cap 1 fits against the upper surface of the balance block 7. After the bolt is installed, cover the protective cover 13. When disassembling the bolt, pick up the protective cover 13 through the handle 14, inject lubricating oil into the bolt rod 2 from the oil injection hole 5, and it leaks out from the oil leakage holes 16 to cover the surface of the bolt rod 2, facilitating the disassembly work. Disassembly and assembly are carried out by using an internal hexagon wrench or a cross screwdriver.

[0028] The embodiments of the present utility model have been described in detail above in conjunction with the accompanying drawings. However, the present utility model is not limited to the above embodiments, and various changes can be made without departing from the gist of the present utility model within the scope of knowledge possessed by those of ordinary skill in the relevant art.

Claims

1. Hexagon head bolt for preventing screw thread stripping, characterized in that Comprising: A bolt cap (1), a bolt rod (2) is fixedly connected to the lower surface of the bolt cap (1), an internal hexagonal groove (3) and a cross groove (4) are formed on the upper surface of the bolt cap (1), an oil injection hole (5) is arranged in the internal hexagonal groove (3) of the bolt cap (1), a connection groove (6) is arranged in the bolt rod (2), the connection groove (6) is communicated with the oil injection hole (5), a balance weight (7) is movably connected to the outer surface of the bolt rod (2), an opening (8) is arranged on the upper surface of the balance weight (7), a threaded groove (9) is arranged on the balance weight (7), and an annular plate (10) is fixedly connected to the lower surface of the bolt cap (1).

2. The hexagon head bolt for preventing screw thread from slipping as claimed in claim 1, wherein, A first thread (11) is arranged in the opening (8), and the balance weight (7) is threadedly connected to the bolt rod (2).

3. The hexagon head bolt for preventing screw thread from slipping as claimed in claim 1, characterized in that, Anti-slip threads (12) are arranged in the internal hexagonal groove (3), and anti-slip threads (12) are arranged in the cross groove (4).

4. The hexagon head bolt for preventing screw thread from slipping as claimed in claim 1, wherein, A protective cover (13) is movably connected to the outer surface of the bolt cap (1), and a handle (14) is fixedly connected to the upper surface of the protective cover (13).

5. The hexagon head bolt for preventing screw thread slipping as claimed in claim 1, wherein A second thread (15) is arranged on the outer surface of the annular plate (10), and the annular plate (10) is movably connected to the threaded groove (9).

6. The hexagon head bolt for preventing screw thread from slipping as claimed in claim 1, wherein, A plurality of oil leakage holes (16) are arranged on the outer surface of the bolt rod (2), and the oil leakage holes (16) are communicated with the connection groove (6).

7. The hexagon head bolt for preventing screw thread from slipping as claimed in claim 1, characterized in that, A conical head (17) is fixedly connected to the lower surface of the bolt rod (2), and the conical head (17) is in a conical shape.

8. The hexagon head bolt for preventing screw thread from slipping as claimed in claim 1, characterized in that, An anti-rust layer is arranged on the outer surfaces of the bolt rod (2) and the bolt cap (1).

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