CN213808421U

CN213808421U - Anti-drop bolt external member

Info

Publication number: CN213808421U
Application number: CN202021841976.9U
Authority: CN
Inventors: 黄太军; 李清波; 陈平; 李征
Original assignee: Hubei Langin Polytron Technologies Inc
Current assignee: Hubei Langin Polytron Technologies Inc
Priority date: 2020-08-28
Filing date: 2020-08-28
Publication date: 2021-07-27
Anticipated expiration: 2030-08-28

Abstract

The utility model discloses an anticreep bolt external member relates to part preparation field, including screw rod head and screw rod, the screw rod surface is carved with forward spiral shell line, reverse spiral shell line has still been carved with on the screw rod surface, forward spiral shell line and reverse screw thread way cross arrangement, the screw rod has forward nut through forward screw thread way threaded connection, the screw rod has reverse nut through reverse screw thread way threaded connection, circular thread connection groove has been seted up to forward nut bottom, reverse nut top fixed mounting have with circular thread connection groove assorted thread connecting ring, the inside screw thread way clearance of carving of circular thread connection groove is the same with the clearance of reverse spiral shell line. The utility model discloses can prevent that two reverse connection's nut and screw rod from droing, and can also prevent that fixed device and screw rod head direct contact from causing the device surface impaired.

Description

Anti-drop bolt external member

Technical Field

The utility model relates to a part preparation field, in particular to anticreep bolt external member.

Background

The bolt is a mechanical part, a cylindrical threaded fastener matched with a nut is composed of a head part and a screw rod, the screw rod is provided with a cylinder with an external thread, and the fastener is matched with the nut and used for fastening and connecting two parts with through holes.

Bolt fastening is a better fixed mode at present, however all need cooperate the nut to fix when using the screw thread to fix, can take place the condition that drops sometimes when bolt cooperation nut is fixed among the prior art to cause the fixed device to drop and take place the potential safety hazard.

Therefore, it is necessary to provide a bolt kit for preventing the falling off to solve the above problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an anticreep bolt external member to can take place the condition that drops sometimes when the bolt cooperation nut that proposes in solving above-mentioned background art is fixed, thereby cause the problem that fixed device drops and takes place the potential safety hazard.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an anticreep bolt external member, includes screw rod head and screw rod, the screw rod surface is carved with forward screw thread line, reverse screw thread line has still been carved on the screw rod surface, forward screw thread line and reverse thread way cross arrangement, the screw rod has forward nut through forward thread way threaded connection, the screw rod has reverse nut through reverse thread way threaded connection, circular thread connection groove has been seted up to forward nut bottom, reverse nut top fixed mounting have with circular thread connection groove assorted thread connection ring, the inside screw thread clearance of carving of circular thread connection groove is the same with the clearance of reverse screw thread line.

Preferably, the bottom of the head of the screw rod is provided with a soft rubber cushion, and the soft rubber cushion is made of rubber.

Preferably, the soft rubber body is fixedly arranged at the center of the soft rubber pad, and the surface of the soft rubber body is provided with a thread nick.

Preferably, the soft colloid is made of rubber.

Preferably, the diameter of the screw is.cm, and the diameter of the head of the screw is.cm.

Preferably, the outer ring of the forward nut and the outer ring of the reverse nut are both regular hexagons, and the outer ring of the head of the screw is designed into a regular hexagon.

The utility model discloses a technological effect and advantage:

1. the screw thread of the forward nut and the screw thread of the reverse nut are connected to the surface of the screw through two reverse threads by installing the forward thread line and the reverse thread line, and the reverse nut is in threaded connection through a circular thread connecting groove at the bottom of the forward nut and a thread connecting ring, so that the two nuts in reverse connection are prevented from falling off from the screw;

2. by installing a software cushion, the fixed device is prevented from being directly contacted with the head of the screw rod to damage the surface of the device;

3. through installing the soft colloid and seting up the screw thread nick on soft colloid surface to reach and prevent to use the sealed purpose of bolted connection's device trompil, prevent that inside entering ponding from causing the screw thread to rust.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic view of the reverse nut in the bottom view.

Fig. 3 is a schematic view of the forward nut of the present invention.

Fig. 4 is an enlarged view of fig. 1A of the present invention.

Fig. 5 is a schematic view of the connection structure of the soft rubber body of the present invention.

In the figure: 1. a screw head; 2. a screw; 3. a positive spiral line; 4. reverse spiral grain; 5. a positive nut; 6. a reverse nut; 7. a circular threaded connecting groove; 8. a threaded connection ring; 9. a soft rubber cushion; 10. a soft gel; 11. and (4) scoring the threads.

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.

The utility model provides an anticreep bolt external member as shown in fig. 1-5, as shown in fig. 1 to 4, including screw head 1 and

screw rod

2, 2 surfaces of screw rod are carved with

forward screw line

3, 2 surfaces of screw rod are still carved with reverse screw line 4, forward screw line 3 and reverse screw line 4 cross arrangement, screw rod 2 has forward nut 5 through 3 threaded connection of forward screw line, screw rod 2 has reverse nut 6 through 4 threaded connection of reverse screw line, circular thread connecting groove 7 has been seted up to forward nut 5 bottom, 6 top fixed mounting of reverse nut have with circular thread connecting groove 7 assorted thread connection ring 8, the inside screw thread clearance of carving of circular thread connecting groove 7 is the same with reverse screw line 4's clearance, prevent that two forward nuts 5 and reverse nut 6 and screw rod 2 from droing.

As shown in fig. 1 and 5, a soft rubber pad 9 is installed at the bottom of the screw head 1, and the soft rubber pad 9 is made of rubber, so that the surface of the device which needs to be fixed by the bolt 2 is protected from being damaged.

As shown in fig. 3, a soft rubber body 10 is fixedly installed at the center of the soft rubber pad 9, a thread notch 11 is formed in the surface of the soft rubber body 10, and water is prevented from entering the threaded hole formed in the device.

As shown in fig. 3, the soft rubber 10 is made of rubber, and has certain elasticity and protection effect.

As shown in FIG. 3, the diameter of the screw 2 is 2.5 cm, and the diameter of the screw head 1 is 3.8 cm, so that the data can be conveniently made by a manufacturer.

As shown in fig. 3, the outer rings of the forward nut 5 and the reverse nut 6 are both regular hexagons, and the outer ring of the screw head 1 is regular hexagons, so that the screw is convenient for workers to fasten and install.

The utility model discloses the theory of operation: the forward nut 5 and the reverse nut 6 are connected to the surface of the screw rod 2 through two reverse grains by the forward thread grains 3 and the reverse thread grains 4, and the reverse nut 6 is in threaded connection with the forward nut 5 through a circular threaded connecting groove 7 at the bottom of the forward nut 5 and a threaded connecting ring 8.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The utility model provides an anticreep bolt external member which characterized in that: including screw rod head (1) and screw rod (2), screw rod (2) surface is carved with forward spiral shell line (3), reverse spiral shell line (4) have still been carved with on screw rod (2) surface, forward spiral shell line (3) and reverse spiral shell line (4) cross arrangement, screw rod (2) have forward nut (5) through forward spiral shell line (3) threaded connection, screw rod (2) have reverse nut (6) through reverse spiral shell line (4) threaded connection, circular screw thread spread groove (7) have been seted up to forward nut (5) bottom, reverse nut (6) top fixed mounting have with circular screw thread spread groove (7) assorted thread connection ring (8), the inside screw thread clearance of carving of circular screw thread spread groove (7) is the same with the clearance of reverse spiral shell line (4).

2. The anti-drop bolt kit according to claim 1, characterized in that: soft rubber mat (9) are installed to screw rod head (1) bottom, soft rubber mat (9) are made for rubber.

3. The anti-drop bolt kit according to claim 2, characterized in that: soft colloid (10) are fixedly installed at the center of the soft rubber cushion (9), and threaded nicks (11) are formed in the surface of the soft colloid (10).

4. The anti-drop bolt kit according to claim 3, characterized in that: the soft colloid (10) is made of rubber.

5. The anti-drop bolt kit according to claim 1, characterized in that: the diameter of the screw (2) is 2.5 cm, and the diameter of the screw head (1) is 3.8 cm.

6. The anti-drop bolt kit according to claim 1, characterized in that: the outer ring of the forward nut (5) and the outer ring of the reverse nut (6) are both regular hexagons, and the outer ring of the screw head (1) is designed into a regular hexagon.