CN214404304U

CN214404304U - Bolt capable of preventing loosening

Info

Publication number: CN214404304U
Application number: CN202120249866.1U
Authority: CN
Inventors: 熊雪宁
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-01-29
Filing date: 2021-01-29
Publication date: 2021-10-15
Anticipated expiration: 2031-01-29

Abstract

The utility model discloses a can prevent not hard up bolt relates to bolt technical field. The utility model discloses a bolt body, upper nut and lower nut, bolt body include upper segment and lower segment, and upper segment constitutes as an organic whole with lower segment, and the diameter of upper segment is less than the diameter of lower segment, and upper segment week side is provided with the screw thread, and lower segment week side is provided with the lower screw thread, and the interval of going up the screw thread is less than the interval of lower screw thread, and upper segment week side cover has inlayed the upper nut, and lower segment week side cover has inlayed the lower nut. The utility model discloses an go up wedge profile, lower wedge profile, go up stripe and lower stripe structure, friction when increasing nut and bolt rotation each other, the interval through last screw thread is less than the interval of screw thread down simultaneously for nut and lower nut hardly take place to rotate simultaneously, prevent to become flexible, through drainage tube, drainage branch pipe and oil-out structure, convenient timely lubricated bolt body avoids long-time use to lead to the bolt body to rust, influences the use in equipment later stage.

Description

Bolt capable of preventing loosening

Technical Field

The utility model belongs to the technical field of the bolt, especially, relate to a can prevent not hard up bolt.

Background

A bolt is a mechanical part, and a cylindrical threaded fastener matched with a nut. A fastener consisting of a head part and a screw (a cylinder with external threads) needs to be matched with a nut and is used for fastening and connecting two parts with through holes. This form of connection is known as a bolted connection. If the nut is unscrewed from the bolt, the two parts can be separated, so that the bolt connection belongs to detachable connection.

The existing bolt structure can cause vibration between the bolt and the nut due to continuous vibration of a machine when in use, and the condition of looseness can slowly appear between the bolt and the nut after a long time, so that the working performance in the later period of equipment is influenced, and meanwhile, the danger is increased.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a can prevent not hard up bolt, through last wedge profile, lower wedge profile, go up stripe and lower stripe structure, the convenience is with interconnect between upper nut and the lower nut, friction when increasing nut and bolt rotation each other, interval through last screw thread is less than the interval of lower screw thread simultaneously, make upper nut and lower nut hardly take place to rotate simultaneously, prevent to become flexible, through the drainage tube, drainage branch pipe and oil-out structure, conveniently in time lubricate bolt body, avoid long-time use to lead to the bolt body to rust, influence the use in equipment later stage, solve current easy not hard up and rusty problem.

In order to solve the technical problem, the utility model discloses a realize through following technical scheme:

the utility model relates to a can prevent not hard up bolt, including bolt body, upper nut and lower nut, the bolt body includes upper segment and lower segment, upper segment constitutes as an organic whole with lower segment, the diameter of upper segment is less than the diameter of lower segment for hardly take place to rotate simultaneously between upper nut and the lower nut, prevent not hard up, upper segment week side is provided with the screw thread, lower segment week side is provided with the lower screw thread, the interval of going up the screw thread is less than the interval of lower screw thread, upper segment week side cover has inlayed the upper nut, lower segment week side cover has inlayed the lower nut.

Further, go up and mutually support between screw thread and the last nut, mutually support between screw thread and the lower nut down, it has all set the cover to inlay with lower nut week side to go up the nut and has had the protective sheath, makes things convenient for operating personnel to screw up, improves its convenience.

Further, the lower surface of the upper nut is provided with an upper wedge profile, the upper surface of the lower nut is provided with a lower wedge profile, and the upper wedge profile and the lower wedge profile are matched with each other.

Furthermore, a plurality of upper stripes are arranged on the surface of the upper wedge profile, a plurality of lower stripes are arranged on the surface of the lower wedge profile, and the upper stripes and the lower stripes are matched with each other to increase friction when the nut and the bolt rotate mutually.

Further, bolt body upper surface is provided with the oil filler point, oil filler point internally mounted has the drainage tube, upper limb week side is provided with a plurality of oil-outs, lower limb week side also is provided with a plurality of oil-outs.

Further, the lateral surface is provided with a plurality of drainage branch pipes around the drainage tube, mutually support between drainage branch pipe and the oil-out, the convenient timely lubricating bolt body avoids long-time use to lead to the bolt body to rust, influences the use in equipment later stage.

The utility model discloses following beneficial effect has:

1. the utility model discloses an go up wedge profile, lower wedge profile, go up stripe and lower stripe structure, the friction when increasing nut and bolt rotation each other between convenient with interconnect between nut and the lower nut, is less than the interval of lower screw thread through the interval of last screw thread simultaneously for nut and lower nut hardly take place to rotate simultaneously, prevent not hard up.

2. The utility model discloses a drainage tube, drainage branch pipe and oil-out structure, the convenient timely lubricating bolt body avoids long-time use to lead to the bolt body to rust, influences the use in equipment later stage.

Of course, it is not necessary for any particular product to achieve all of the above-described advantages at the same time.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of a bolt capable of preventing loosening according to the present invention;

fig. 2 is a schematic view of a horizontal structure of the bolt capable of preventing loosening according to the present invention;

fig. 3 is a schematic view of the connection structure of the upper nut and the lower nut of the present invention;

fig. 4 is a schematic top view of the bolt of the present invention for preventing loosening;

fig. 5 is a schematic view of a bottom structure of a bolt capable of preventing loosening according to the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

1. a bolt body; 2. an upper edge section; 3. a lower edge section; 4. screwing; 5. lower threads; 6. screwing a nut; 7. a lower nut; 8. a protective sleeve; 9. an upper wedge profile; 10. a lower wedge profile; 11. coating stripes; 12. lower stripes; 13. an oil filler hole; 14. a drainage tube; 15. a drainage branch pipe; 16. and an oil outlet.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings 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. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "middle", "outer", "inner", and the like, indicate positional or positional relationships, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referenced components or elements must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Please refer to fig. 1-5, the utility model relates to a can prevent not hard up bolt, including bolt body 1, upper nut 6 and lower nut 7, bolt body 1 includes upper segment 2 and lower segment 3, upper segment 2 constitutes as an organic whole with lower segment 3, the diameter of upper segment 2 is less than the diameter of lower segment 3, make hardly take place to rotate simultaneously between upper nut 6 and the lower nut 7, prevent to become flexible, 2 side of upper segment are provided with

upper thread

4, 3 side of lower segment are provided with lower thread 5, the interval of upper thread 4 is less than the interval of

lower thread

5, 2 side of upper segment overlaps to have inlayed

upper nut

6, 3 side of lower segment overlaps to have inlayed lower nut 7.

Go up and mutually support between screw thread 4 and the last nut 6, mutually support between lower screw thread 5 and the lower nut 7, go up

nut

6 and 7 week sides of lower nut and all overlap and have inlayed protective sheath 8, make things convenient for operating personnel to screw up, improve its convenience.

The lower surface of the upper nut 6 is provided with an upper wedge surface 9, the upper surface of the lower nut 7 is provided with a lower wedge surface 10, and the upper wedge surface 9 and the lower wedge surface 10 are matched with each other.

A plurality of upper strips 11 are arranged on one surface of the upper wedge-shaped surface 9, a plurality of lower strips 12 are arranged on one surface of the lower wedge-shaped surface 10, the upper strips 11 are matched with the lower strips 12, and friction is increased when the nut and the bolt rotate mutually.

The upper surface of the bolt body 1 is provided with an oil filling hole 13, a drainage tube 14 is arranged in the oil filling hole 13, a plurality of oil outlets 16 are arranged on the side surface of the periphery of the upper section 2, and a plurality of oil outlets 16 are also arranged on the side surface of the periphery of the lower section 3.

14 all sides of drainage tube are provided with a plurality of drainage branch pipes 15, mutually support between drainage branch pipe 15 and the oil-out 16, and convenient timely lubricating bolt body 1 avoids long-time use to lead to bolt body 1 to rust, influences the use in equipment later stage.

Referring to fig. 1-5, the present invention relates to a bolt capable of preventing loosening, which is used by the following steps: when screwing up between upper nut 6 and lower nut 7, through last wedge profile 9, lower wedge profile 10, go up stripe 11 and lower stripe 12 structure, the convenience is with interconnect between upper nut 6 and the lower nut 7, friction when increasing nut and bolt rotation each other, interval through last screw thread 4 is less than the interval of lower screw thread 5 simultaneously, make upper nut 6 and lower nut 7 hardly take place to rotate simultaneously, prevent not hard up, through drainage tube 14, drainage branch pipe 15 and oil-out 16 structure, convenient timely lubricated bolt body 1, avoid long-time use to lead to bolt body 1 to rust, influence the use in equipment later stage.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. The utility model provides a can prevent not hard up bolt, includes bolt body (1), upper nut (6) and lower nut (7), its characterized in that: bolt body (1) includes superior border section (2) and lower border section (3), superior border section (2) constitutes as an organic whole with lower border section (3), the diameter of superior border section (2) is less than the diameter of lower border section (3), superior border section (2) week side is provided with screw thread (4), lower border section (3) week side is provided with down screw thread (5), the interval of going up screw thread (4) is less than the interval of lower screw thread (5), superior border section (2) week side cover has inlayed last nut (6), lower border section (3) week side cover has inlayed lower nut (7).

2. The bolt capable of preventing loosening according to claim 1, wherein the upper thread (4) and the upper nut (6) are matched with each other, the lower thread (5) and the lower nut (7) are matched with each other, and the peripheral sides of the upper nut (6) and the lower nut (7) are sleeved with a protective sleeve (8).

3. A bolt against loosening according to claim 1, characterised in that the lower surface of the upper nut (6) is provided with an upper wedge profile (9) and the upper surface of the lower nut (7) is provided with a lower wedge profile (10), the upper wedge profile (9) and the lower wedge profile (10) cooperating with each other.

4. A bolt capable of preventing loosening according to claim 3, wherein the upper wedge profile (9) is provided with a plurality of upper bars (11) on one surface, the lower wedge profile (10) is provided with a plurality of lower bars (12) on one surface, and the upper bars (11) and the lower bars (12) are mutually matched.

5. The bolt capable of preventing loosening according to claim 1, wherein the bolt body (1) is provided with an oil hole (13) on the upper surface, a drainage tube (14) is installed inside the oil hole (13), a plurality of oil outlets (16) are arranged on the peripheral side surface of the upper section (2), and a plurality of oil outlets (16) are also arranged on the peripheral side surface of the lower section (3).

6. A bolt capable of preventing looseness according to claim 5, wherein a plurality of branch drainage pipes (15) are arranged on the peripheral side face of the drainage pipe (14), and the branch drainage pipes (15) are matched with the oil outlet (16).