CN220415972U - High-strength anti-loose hexagonal bolt - Google Patents

Abstract

The utility model discloses a high-strength anti-loose hexagon bolt which comprises a screw head and a screw rod, wherein a mounting cavity is arranged in the screw rod; the middle part of the screw head is provided with a fixed block, the middle part of the fixed block is provided with an inner hexagonal groove, the bottom surface of the inner hexagonal groove is provided with a mounting hole, and the mounting hole is communicated with the mounting cavity; the periphery of the fixed block is provided with an annular groove, and a limiting piece is detachably arranged in the annular groove; a limit mechanism is arranged in the screw rod. The bolt has good looseness resistance and higher wear resistance.

Description

High-strength anti-loose hexagonal bolt

Technical Field

The utility model relates to the technical field of bolts, in particular to a high-strength anti-loose hexagon bolt.

Background

Bolts are commonly used fasteners and are widely used in a variety of fields because of their advantages of self-locking, simplicity in manufacture, mass production, low cost, interchangeability, and the like. The hexagonal bolt is a fastener consisting of a head and a screw, the bolt is divided into an iron bolt and a stainless steel bolt according to materials, the bolt is additionally provided with a T-shaped groove bolt with special use, the most used machine tool clamp is special in shape, two sides of the head need to be cut off, and the foundation bolt is used for connecting and fixing a machine and the ground.

The existing hexagonal bolt is likely to be gradually loosened due to tiny vibration after being used for a long time, so that the fixing effect of the bolt is lost, the connection stability of the hexagonal bolt is greatly reduced, and therefore the high-strength anti-loose hexagonal bolt is provided.

Disclosure of Invention

The utility model mainly aims to provide a high-strength anti-loosening hexagon bolt which is used for solving the technical problems.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the high-strength anti-loosening hexagon bolt comprises a screw head and a screw rod, wherein a mounting cavity is formed in the screw rod; the middle part of the screw head is provided with a fixed block, the middle part of the fixed block is provided with an inner hexagonal groove, the bottom surface of the inner hexagonal groove is provided with a mounting hole, and the mounting hole is communicated with a mounting cavity; an annular groove is formed in the periphery of the fixed block, and a limiting piece is detachably arranged in the annular groove; and a limiting mechanism is arranged in the screw rod.

The above-mentioned scheme is based on and is a preferable scheme of the above-mentioned scheme: the limiting piece comprises a limiting ring, and a plurality of first limiting columns are arranged at the bottom of the limiting ring; a plurality of first limiting holes are formed in the bottom surface of the annular groove, and the first limiting columns are matched with the first limiting holes.

The above-mentioned scheme is based on and is a preferable scheme of the above-mentioned scheme: the limiting mechanism comprises a fixed seat, an elastic column is arranged at the top end of the fixed seat, and a second limiting column is arranged at the top end of the elastic column; and a through hole is formed in the side wall of the screw rod, and the second limiting column is matched with the through hole.

The above-mentioned scheme is based on and is a preferable scheme of the above-mentioned scheme: a jacking column is detachably arranged in the mounting hole, and the jacking column is of an inverted cone structure; one side of the fixing seat is provided with a limiting channel.

The above-mentioned scheme is based on and is a preferable scheme of the above-mentioned scheme: the outer side wall of the screw is coated with a wear-resistant coating.

The beneficial effects of the utility model are as follows: the bolt has good anti-loosening performance and higher wear resistance; the application mode is as follows: the screw is screwed into the object through the screw driver, then the limiting piece is placed into the annular groove, and the first limiting column is knocked into the first limiting hole and inserted into the object, so that the primary fastening effect is achieved; through putting into the mounting hole with the jack-prop, in spacing passageway is put into to the bottom of jack-prop, then also beats into spacing passageway with the jack-prop of back taper structure in, because the deformation of elastic column, the through-hole is stretched out to the spacing post of second, fixes inside with the article, through twice fastening effect, can prevent that the bolt from loosening.

Drawings

FIG. 1 is a schematic view of the overall structure of the present utility model;

fig. 2 is a schematic view of the internal structure of the present utility model.

Detailed Description

For the purposes of clarity, technical solutions and advantages of the present application, the technical solutions in the examples will be clearly and completely described below with reference to the drawings in the examples, however, the detailed description and examples described below are for the purpose of illustration only and not for the purpose of limiting the utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

Referring to fig. 1 to 2 of the drawings, a high-strength anti-loosening hexagonal bolt in the embodiment comprises a screw head 1 and a screw rod 2, wherein a mounting cavity is formed in the screw rod 2; the middle part of the screw head 1 is provided with a fixed block 3, the middle part of the fixed block 3 is provided with an inner hexagonal groove 30, the bottom surface of the inner hexagonal groove 30 is provided with a mounting hole, and the mounting hole is communicated with the mounting cavity; the periphery of the fixed block 3 is provided with an annular groove 4, and a limiting piece is detachably arranged in the annular groove 4; a limit mechanism is arranged in the screw rod 2.

Further, the limiting piece comprises a limiting ring 5, and a plurality of first limiting columns 50 are arranged at the bottom of the limiting ring 5; a plurality of first limiting holes are formed in the bottom surface of the annular groove 4, and the first limiting columns 50 are matched with the first limiting holes.

Further, the limiting mechanism comprises a fixed seat 6, an elastic column 60 is arranged at the top end of the fixed seat 6, and a second limiting column 61 is arranged at the top end of the elastic column 60; the side wall of the screw rod 2 is provided with a through hole 20, and the second limit post 61 is matched with the through hole 20.

Further, a jacking column 7 is detachably arranged in the mounting hole, and the jacking column 7 is of an inverted cone structure; one side of the fixed seat 6 is provided with a limit channel 62.

Preferably, the outer side wall of the screw 2 is coated with a wear resistant coating.

The bolts in this embodiment are used as follows: the screw is screwed into the object by the screw driver, then the limiting piece is placed in the annular groove 4, and the first limiting column 50 is knocked into the first limiting hole and inserted into the object, so that the primary fastening effect is achieved; through placing the jack-prop 7 into the mounting hole, the spacing passageway 62 is put into to the bottom of jack-prop 7, then also knocks into spacing passageway 62 with jack-prop 7 of back taper structure in, because the deformation of elastic column 60, the through-hole is stretched out to the spacing post 61 of second, fixes inside with the article, through twice fastening effect, can prevent that the bolt from loosening.

The above embodiments are only preferred embodiments of the present utility model, and are not intended to limit the scope of the present utility model in this way, therefore: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.

Claims (5)

1. A high strength locking hex bolts, its characterized in that: the device comprises a screw head and a screw rod, wherein a mounting cavity is arranged in the screw rod; the middle part of the screw head is provided with a fixed block, the middle part of the fixed block is provided with an inner hexagonal groove, the bottom surface of the inner hexagonal groove is provided with a mounting hole, and the mounting hole is communicated with a mounting cavity; an annular groove is formed in the periphery of the fixed block, and a limiting piece is detachably arranged in the annular groove; and a limiting mechanism is arranged in the screw rod.

2. The high strength anti-loose hex bolt according to claim 1, wherein: the limiting piece comprises a limiting ring, and a plurality of first limiting columns are arranged at the bottom of the limiting ring; a plurality of first limiting holes are formed in the bottom surface of the annular groove, and the first limiting columns are matched with the first limiting holes.

3. The high strength anti-loose hex bolt according to claim 1, wherein: the limiting mechanism comprises a fixed seat, an elastic column is arranged at the top end of the fixed seat, and a second limiting column is arranged at the top end of the elastic column; and a through hole is formed in the side wall of the screw rod, and the second limiting column is matched with the through hole.

4. A high strength locknut as defined in claim 3, wherein: a jacking column is detachably arranged in the mounting hole, and the jacking column is of an inverted cone structure; one side of the fixing seat is provided with a limiting channel.

5. The high strength anti-loose hex bolt according to claim 1, wherein: the outer side wall of the screw is coated with a wear-resistant coating.