CN210919742U - Rust-proof bolt - Google Patents

Abstract

The utility model provides an antirust bolt, includes the bolt body, and the bolt body includes bolt head and threaded rod, and threaded rod fixed connection is equipped with on the bolt head and is used for spanner male hexagon shrinkage pool in the below of bolt head, and hexagon shrinkage pool middle part is equipped with the oil filler point that runs through to the threaded rod. The anti-rust oil has the advantages that the anti-rust oil gradually diffuses to the threaded hole and the thread meshing position through the oil dispersing hole in the installation process, and the oxidation speed is reduced due to the fact that the whole interior of the anti-rust oil is filled with the anti-rust oil.

Description

Rust-proof bolt

Technical Field

The utility model relates to a bolt especially relates to an antirust bolt.

Background

The bolt can play the effect of connecting two relative independent spare parts, and the wide application is in industrial production.

At present, most bolts are cast iron material, and equipment bolt can keep better state when leaving the factory, but, long-term the back of using, because operational environment is moist, by reasons such as air oxidation, even the bolt does not use, also can slowly rust in the bolt hole, when needs are dismantled, can't follow the bolt hole with the bolt and tear out, cause very big puzzlement.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems, the rust-proof bolt is specially made, the bolt can be prevented from being oxidized and rusted in a bolt hole, and convenience is brought to follow-up disassembly and assembly.

In order to achieve the above object, the present invention provides the following solutions: the utility model provides an antirust bolt includes the bolt body, and the bolt body includes bolt head and threaded rod, and threaded rod fixed connection is equipped with on the bolt head and is used for spanner male hexagon shrinkage pool in the below of bolt head, and hexagon shrinkage pool middle part is equipped with the oil filler point that runs through to the threaded rod.

Furthermore, a plurality of oil scattering holes penetrating from the oil injection holes to the outside of the threaded rod are formed in the inner wall of the oil injection hole.

Furthermore, the bottom surface of the hexagonal concave hole is of a conical surface structure inclined towards the oil filling hole.

Further, the wall thickness between the oil injection hole and the periphery of the threaded rod is more than or equal to 2 mm.

Further, the distance between the bottom of the oil filling hole and the bottom of the threaded rod is more than or equal to 1.5 mm.

Furthermore, a detachable sealing cover is arranged on the bolt head.

Further, the outer contour of the sealing cover is larger than that of the bolt head.

The utility model discloses an useful part lies in:

set up the oil filler point in the bolt head increase, and set up the scattered oilhole that link up around the oil filler point, when the bolt installation, toward filling rust-preventive oil in the oil filler point of bolt head, rust-preventive oil progressively diffuses to screw hole and thread engagement position through scattered oilhole in the installation, because inside whole is filled by rust-preventive oil, set up the sealed lid of detachable on the hexagon shrinkage pool of bolt head, make the bolt whole be in a relatively sealed state, can slow down rust-preventive oil on the one hand and run off, on the other hand also can slow down the oxidation rate.

Drawings

Fig. 1 is a schematic view of a cross-sectional structure of an anti-rust bolt of the present invention.

Reference numerals: the bolt comprises a bolt head 1, a threaded rod 2, a hexagonal concave hole 3, an oil filling hole 4, an oil dispersing hole 5 and a sealing cover 6.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to fig. 1 in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

The utility model provides an antirust bolt, includes the bolt body, and the bolt body includes bolt head 1 and threaded rod 2, and 2 fixed connection of threaded rod are in the below of bolt head 1, are equipped with on the bolt head 1 to be used for spanner male hexagon shrinkage pool 3, and 3 middle parts of hexagon shrinkage pool are equipped with the oil filler point 4 that runs through to threaded rod 2. Oil filler point 4 link up to 2 bottoms of threaded rod, and for the intensity of ensureing the bolt body, oil filler point 4 does not run through 2 bottoms of threaded rod, ensures wall thickness more than or equal to 2 millimeters between oil filler point 4 and the threaded rod 2 simultaneously.

The bottom surface of hexagon shrinkage pool 3 is the conical surface of downward sloping, and conical surface angle is less than 45, because rust-preventive oil is comparatively thick for a bit, needs longer time just can slowly diffuse to oil filler point 4 and oil scattering hole 5, for avoiding rust-preventive oil to be detained at hexagon shrinkage pool 3 bottom surface, consequently, sets the bottom surface to the inclined plane, can help rust-preventive oil to flow.

The oil scattering holes 5 are usually arranged along the outer contour of the threaded rod 2, four oil scattering holes are arranged along the circumference of the outer contour of the threaded rod 2 at equal included angles, and a plurality of oil scattering holes are arranged along the direction of the threaded rod 2 at equal intervals. Can be convenient for the threaded hole all around evenly receive rust-preventive oil.

Sealed lid 6 includes boss and capping, and the boss is the hexagon structure, boss and 3 tight fittings of hexagon shrinkage pool, and the capping covers in bolt head 1, and the capping outline is greater than 1 outline of bolt head slightly, can cover the clearance between screw thread head and the screw hole, promotes airtight effect. The sealing cover 6 is preferably made of rubber, and the rubber has elasticity and is more attached to the bolt head 1.

It is obvious to a person skilled in the art that the invention is not limited to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention, and that the embodiments are therefore to be considered in all respects as exemplary and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Claims (7)

1. The utility model provides an antirust bolt, its characterized in that, includes the bolt body, and the bolt body includes bolt head and threaded rod, and threaded rod fixed connection is equipped with on the bolt head and is used for spanner male hexagon shrinkage pool in the below of bolt head, and hexagon shrinkage pool middle part is equipped with the oil filler point that runs through to the threaded rod.

2. The rust-proof bolt as claimed in claim 1, wherein the inner wall of the oil filling hole is further provided with a plurality of oil scattering holes penetrating from the oil filling hole to the outside of the threaded rod.

3. The rust-preventive bolt according to claim 2, wherein the bottom surface of the hexagonal recess has a tapered surface structure inclined toward the oil filler hole.

4. A rust-inhibiting bolt as claimed in claim 3, characterized in that the wall thickness between the oil filling opening and the periphery of the threaded shank is greater than or equal to 2 mm.

5. The rust-preventive bolt according to claim 4, wherein the bottom of the oil filler hole is 1.5 mm or more from the bottom of the threaded rod.

6. The rust inhibiting bolt of claim 1 wherein the bolt head is further provided with a removable seal cap.

7. The rust-preventive bolt according to claim 6, wherein the outer contour of the seal cover is larger than that of the bolt head.

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