CN213451250U

CN213451250U - Anti-loosening bolt

Info

Publication number: CN213451250U
Application number: CN202022585868.6U
Authority: CN
Inventors: 孟召文
Original assignee: Yangzhou Sanzhe Fastener Co ltd
Current assignee: Yangzhou Sanzhe Fastener Co ltd
Priority date: 2020-11-10
Filing date: 2020-11-10
Publication date: 2021-06-15
Anticipated expiration: 2030-11-10

Abstract

The utility model discloses a locking bolt, which relates to the technical field of bolts and comprises a bolt body and a nut matched with the bolt body, wherein the bolt body comprises a screw rod and a bolt head integrally formed with the screw rod; the end, far away from the bolt head, of the screw is detachably connected with a retaining cap, the retaining cap is of a hollow cylindrical structure with one open end, the side wall of an inner cavity of the retaining cap is provided with an internal thread which can be in threaded connection with the screw, and a threaded column is coaxially arranged on the end face, opposite to the open end, in the retaining cap; a cylindrical groove is formed in the center of one end face, away from the bolt head, of the screw rod, the groove is coaxial with the screw rod, and an internal thread capable of being in threaded connection with the threaded column is formed in the inner side wall of the groove. The utility model discloses can effectively prevent the not hard up condition of bolt under the vibrations environment.

Description

Anti-loosening bolt

Technical Field

The utility model relates to a bolt technical field specifically is an anti-loosening bolt.

Background

The bolt is a cylindrical threaded fastener matched with a nut, and the cylindrical threaded fastener consists of a head part and a screw rod (a cylinder with an external thread), is required to be matched with the nut and is used for fastening and connecting two parts with through holes, and the connection form is called bolt connection.

Can often use the bolt in the automobile assembling field, nevertheless the car can produce various vibrations at the in-process of traveling, and this can cause certain influence to the bolt, and current bolt simple structure probably makes the bolt not hard up under the influence of long-time vibrations to cause the part to damage, serious also probably leads to the emergence of car accident.

Disclosure of Invention

An object of the utility model is to overcome the not enough of above-mentioned technique, provide an anti-loosening bolt, can effectively prevent the not hard up condition of bolt under the vibrations environment.

In order to realize the purpose of the utility model, the utility model adopts the technical scheme that:

a loosening-preventing bolt comprises a bolt body and a nut matched with the bolt body, wherein the bolt body comprises a screw rod and a bolt head integrally formed with the screw rod; the screw rod is detachably connected with a retaining cap at one end far away from the bolt head, the retaining cap is of a hollow cylindrical structure with one open end, an internal thread capable of being in threaded connection with the screw rod is formed on the side wall of an inner cavity of the retaining cap, and a threaded column is coaxially arranged on the end face, opposite to the open end, in the retaining cap; a cylindrical groove is formed in the center of one end face, away from the bolt head, of the screw rod, the groove is coaxial with the screw rod, and an internal thread capable of being in threaded connection with the threaded column is formed in the inner side wall of the groove.

The utility model discloses a further improvement lies in, the preforming is used for laying a plurality of archs with the surface of being connected the part and laminating mutually, and the preforming passes through the spring pressure on being connected the part, makes the preforming and by the frictional force increase between the part surface through the arch, has effectively prevented the not hard up rotation of bolt.

The utility model discloses a further improvement lies in, be equipped with anti-skidding line on the outer wall of stopping cap, make things convenient for artifical the rotation.

The utility model discloses a further improvement lies in, stopping cap and screw thread post integrated into one piece.

The utility model has the advantages that: the utility model has the advantages that the spring and the pressing sheet are arranged, the pressing sheet is pressed against the connected part through the spring, certain buffering and damping effects are achieved by utilizing the elasticity of the spring, and the problem of bolt looseness caused by continuous small-amplitude impact between a bolt head and the connected part in a vibration environment is solved; the utility model discloses a set up the stopping cap, support the nut through the stopping cap of screwing, effectively prevented not hard up droing between bolt and nut, because the stopping cap is through screw-thread fit between its inner chamber and the screw rod, screw-thread fit between screw thread post and the recess improves fastening ability greatly.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

In the figure: the bolt comprises a bolt body 1, a nut 2, a screw rod 3, a bolt head 4, a pressing sheet 5, a spring 6, a retaining cap 7, a threaded column 8, a groove 9, a connected part 10, a protrusion 11 and anti-skid lines 12.

Detailed Description

In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

As shown in fig. 1, the anti-loosening bolt comprises a bolt body 1 and a nut 2 matched with the bolt body 1, wherein the bolt body 1 comprises a screw rod 3 and a bolt head 4 integrally formed with the screw rod 3, an annular pressing sheet 5 is sleeved on the screw rod 3, a spring 6 is sleeved on the screw rod 3 between the pressing sheet 5 and the bolt head 4, one end of the spring 6 is fixedly connected with the bolt head 4, and the other end of the spring 6 is fixedly connected with the pressing sheet 5; one end of the screw rod 3, which is far away from the bolt head 4, is detachably connected with a retaining cap 7, the retaining cap 7 is of a hollow cylindrical structure with one open end, the side wall of the inner cavity of the retaining cap 7 is provided with an internal thread which can be in threaded connection with the screw rod 3, and a threaded column 8 is coaxially arranged on the end surface, opposite to the open end, in the retaining cap 7; a cylindrical groove 9 is formed in the center of one end face, away from the bolt head 4, of the screw rod 3, the groove 9 is coaxial with the screw rod 3, and an internal thread capable of being in threaded connection with the threaded column 8 is formed in the inner side wall of the groove 9.

The surface of the pressing sheet 5, which is used for being attached to the connected part 10, is provided with a plurality of protrusions 11, the pressing sheet 5 is pressed on the connected part 10 through the spring 6, the friction force between the pressing sheet 5 and the surface of the connected part 10 is increased through the protrusions 11, and the bolt is effectively prevented from loosening and rotating.

The outer wall of the retaining cap 7 is provided with anti-skid grains 12, so that manual rotation is facilitated.

The retaining cap 7 is integrally formed with the threaded post 8.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.

The technical means disclosed by the scheme of the present invention is not limited to the technical means disclosed by the above embodiments, but also includes the technical scheme formed by the arbitrary combination of the above technical features. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications are also considered as the protection scope of the present invention.

Claims

1. A loosening-preventing bolt comprises a bolt body and a nut matched with the bolt body, wherein the bolt body comprises a screw rod and a bolt head integrally formed with the screw rod; the screw rod is detachably connected with a retaining cap at one end far away from the bolt head, the retaining cap is of a hollow cylindrical structure with one open end, an internal thread capable of being in threaded connection with the screw rod is formed on the side wall of an inner cavity of the retaining cap, and a threaded column is coaxially arranged on the end face, opposite to the open end, in the retaining cap; a cylindrical groove is formed in the center of one end face, away from the bolt head, of the screw rod, the groove is coaxial with the screw rod, and an internal thread capable of being in threaded connection with the threaded column is formed in the inner side wall of the groove.

2. The locking bolt of claim 1 wherein the surface of the press plate for engaging the connected component is provided with a plurality of protrusions.

3. The anti-loosening bolt as claimed in claim 1, wherein the outer wall of the retaining cap is provided with anti-slip lines.

4. A locking bolt as defined in claim 1, wherein said retaining cap is formed integrally with the threaded post.