CN211398179U

CN211398179U - High-strength anti-loosening outer hexagon bolt

Info

Publication number: CN211398179U
Application number: CN202020063067.0U
Authority: CN
Inventors: 钱春芳
Original assignee: Shenzhen Jianhui Hardware Products Co ltd
Current assignee: Shenzhen Jianhui Hardware Products Co ltd
Priority date: 2020-01-13
Filing date: 2020-01-13
Publication date: 2020-09-01
Anticipated expiration: 2030-01-13

Abstract

The utility model discloses an anti outer hex bolts that moves of high strength, including hexagonal spiral head, the bottom movable mounting of hexagonal spiral head has the expansion screw, the lower extreme movable mounting of expansion screw has set screw, the mounting groove has been seted up at the top of hexagonal spiral head, the inside screw thread of mounting groove is installed and is strengthened spiral head, the lower extreme fixed mounting who strengthens spiral head has the enhancement screw. The utility model discloses a set the expansion screw to the clamping screw upper end of hexagonal spiral shell head bottom, because the expansion screw will be thicker than clamping screw when installing this bolt, can increase the firm degree of connection when the installation, install the inside at the expansion screw with the clamping screw of other enhancement spiral shell head bottom simultaneously, not only can outwards extrude the both sides of expansion screw, can also increase the fastening degree of being connected between expansion screw and the jointing equipment, make it can not take place to become flexible after receiving vibrations.

Description

High-strength anti-loosening outer hexagon bolt

Technical Field

The utility model relates to a bolt technical field specifically is an anti not hard up outer hexagon bolt of high strength.

Background

Bolt: mechanical articles, the cylindrical threaded fastener of adapted nut, a kind of fastener that comprises head and screw rod (the cylinder that has the external screw thread), need to cooperate with the nut, be used for the fastening connection two articles that have the through-hole, this kind of connection form is called bolted connection, if unscrew the nut from the bolt, can make these two articles separate again, so bolted connection belongs to and can dismantle the connection, the bolt that uses at present includes the spiral shell head and sets up the screw rod under the spiral shell head, but in the actual work in-process, because machinery can produce very big vibrations in the operation, the bolt slowly becomes flexible even drops under the influence of vibrations easily, can become the potential safety hazard even under the circumstances of knowing from this.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an anti outer hex bolts that becomes flexible of high strength possesses the high and difficult advantage that takes place to drop of intensity, has solved because machinery can produce very big vibrations in the operation, and the bolt is easily slowly not hard up the problem that drops even under the influence of vibrations.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an anti outer hex bolts that moves of high strength, includes hexagonal spiral head, the bottom movable mounting of hexagonal spiral head has the expansion screw, the lower extreme movable mounting of expansion screw has set screw, the mounting groove has been seted up at the top of hexagonal spiral head, the internal thread of mounting groove is installed and is strengthened spiral head, the lower extreme fixed mounting who strengthens spiral head has the set screw.

Preferably, the expansion screw rod is provided with two parts, and the left expansion screw rod and the right expansion screw rod are in an open-close type design.

Preferably, the upper end of the reinforcing screw rod and the bottom of the reinforcing screw head are integrally formed, and the reinforcing screw head is arranged in a hexagon socket.

Preferably, the expansion screw is internally provided with a connecting groove, and the lower end of the reinforcing screw extends to the inside of the connecting groove and is in threaded mounting with the inner wall of the expansion screw.

Preferably, the reinforcing screw is arranged in a manner of being thick at the top and thin at the bottom.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the utility model discloses a set the expansion screw to the clamping screw upper end of hexagonal spiral shell head bottom, because expansion screw will be thicker than clamping screw when installing this bolt, can increase the firm degree of connection when the installation, install the inside at expansion screw with the clamping screw of other enhancement spiral shell head bottom simultaneously, not only can outwards extrude expansion screw's both sides, can also increase the fastening degree of being connected between expansion screw and the jointing equipment, it can not take place to become flexible to make it receive vibrations after, solved simultaneously because machinery can produce very big vibrations in the operation, the bolt is easily under the influence of vibrations slowly not hard up the problem that drops even.

2. The utility model discloses a improve the screw rod on original bolt basis, set to the fastness that the inflation screw rod can strengthen the connection, inflation screw rod self can also increase simultaneously with the area of contact of jointing equipment, not only can improve joint strength and can also improve the bulk strength of this bolt through mutually supporting with the enhancement screw rod.

Drawings

FIG. 1 is a front view of the structure of the present invention;

FIG. 2 is a top view of the hexagonal screw head structure of the present invention;

fig. 3 is a front view of the reinforced screw head structure of the present invention.

In the figure: 1. a hexagonal screw head; 2. an expansion screw; 3. fixing the screw rod; 4. mounting grooves; 5. reinforcing the screw head; 6. the screw is reinforced.

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 in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description herein, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings to facilitate the description of the patent and to simplify the description, but do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be considered limiting of the patent. In the description of the present application, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can, for example, be fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.

Referring to fig. 1-3, a high-strength anti-loosening external hexagon bolt comprises a hexagon screw head 1, an expansion screw 2 is provided with two parts, an opening-closing design is provided between a left expansion screw 2 and a right expansion screw 2, the expansion screw 2 is movably installed at the bottom of the hexagon screw head 1, a connecting groove is formed in the expansion screw 2, the lower end of a reinforcing screw 6 extends into the connecting groove and is in threaded installation with the inner wall of the expansion screw 2, the firmness of connection can be enhanced by improving the screws on the basis of the original bolt, meanwhile, the expansion screw 2 can increase the contact area with connecting equipment, the connecting strength can be improved and the overall strength of the bolt can be improved by matching with the reinforcing screw 6, a fixed screw 3 is movably installed at the lower end of the expansion screw 2, a hexagon mounting groove 4 is formed in the top of the hexagon screw head 1, the reinforcing screw head 5 is installed on the internal thread of the installation groove 4, the reinforcing screw 6 is fixedly installed at the lower end of the reinforcing screw head 5, the upper end of the reinforcing screw 6 and the bottom of the reinforcing screw head 5 are integrally formed, the reinforcing screw head 5 is arranged in an inner hexagonal shape, the reinforcing screw 6 is arranged in a thick-top and thin-bottom shape, the upper end of the fixing screw 3 at the bottom of the hexagonal screw head 1 is arranged to be the expansion screw 2, when the bolt is installed, the connection firmness can be increased due to the fact that the expansion screw 2 is thicker than the fixing screw 3, meanwhile, the reinforcing screw 6 at the bottom of the reinforcing screw head 5 is installed in the expansion screw 2, not only can the two sides of the expansion screw 2 be extruded outwards, but also the connection fastening degree between the expansion screw 2 and the connecting equipment can be increased, the looseness can not occur after the bolt is vibrated, and simultaneously, the problem that the machine can generate large vibration in operation is, the bolt is easy to be loosened slowly and even fall off under the influence of vibration.

The utility model provides an all parts are the parts that general standard spare or technical staff in the field know, its structure and principle all are this technical staff all can learn through the technical manual or learn through conventional experimental method, the standard part that uses in this application file all can purchase from the market simultaneously, each part can all be customized according to the record of description and attached drawing in this application file, the concrete joining mode of each part all adopts conventional means such as ripe bolt in the prior art, rivets, welding, machinery, part and equipment all adopt conventional model in the prior art, no longer make specific statement here.

When in use, the upper end of the fixed screw rod 3 at the bottom of the hexagonal screw head 1 is arranged into the expansion screw rod 2, when the bolt is installed, the expansion screw rod 2 is thicker than the fixing screw rod 3, so that the connection firmness can be increased during installation, meanwhile, the reinforcing screw 6 at the bottom of the other reinforcing screw head 5 is arranged in the expansion screw 2, so that not only can two sides of the expansion screw 2 be extruded outwards, but also the fastening degree of the connection between the expansion screw 2 and the connecting equipment can be increased, and the expansion screw cannot be loosened after being vibrated, the expansion screw 2 can strengthen the firmness of connection by improving the screw on the basis of the original bolt, meanwhile, the expansion screw 2 can increase the contact area with the connecting equipment, and the connection strength can be improved and the overall strength of the bolt can also be improved through the mutual matching of the expansion screw and the reinforcing screw 6.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an anti outer hex bolts that moves of high strength, includes hexagonal head (1), its characterized in that: the bottom movable mounting of hexagonal spiral shell head (1) has expansion screw (2), the lower extreme movable mounting of expansion screw (2) has set screw (3), mounting groove (4) have been seted up at the top of hexagonal spiral shell head (1), the internal thread of mounting groove (4) is installed and is strengthened spiral shell head (5), the lower extreme fixed mounting of strengthening spiral shell head (5) has set screw (6).

2. The high-strength anti-loosening hexagon socket head cap screw according to claim 1, wherein: the expansion screw (2) is provided with two parts, and the left expansion screw (2) and the right expansion screw (2) are in an open-close type design.

3. The high-strength anti-loosening hexagon socket head cap screw according to claim 1, wherein: the upper end of the reinforcing screw rod (6) and the bottom of the reinforcing screw head (5) are integrally formed, and the reinforcing screw head (5) is arranged in a hexagon socket.

4. The high-strength anti-loosening hexagon socket head cap screw according to claim 1, wherein: the expansion screw rod (2) is internally provided with a connecting groove, and the lower end of the reinforcing screw rod (6) extends to the inside of the connecting groove and is installed with the inner wall of the expansion screw rod (2) in a threaded manner.

5. The high-strength anti-loosening hexagon socket head cap screw according to claim 1, wherein: the reinforcing screw rods (6) are arranged in a mode that the upper parts are thick and the lower parts are thin.