CN210290434U

CN210290434U - Anti-loosening bolt

Info

Publication number: CN210290434U
Application number: CN201920901364.5U
Authority: CN
Inventors: 陆畅
Original assignee: Individual
Current assignee: Jiaxing Chuanhua Hardware Co Ltd
Priority date: 2019-06-17
Filing date: 2019-06-17
Publication date: 2020-04-10
Anticipated expiration: 2029-06-17

Abstract

The utility model discloses a locking bolt that moves, including spiral shell head, screw rod and nut linkage segment, spiral shell head, nut linkage segment, screw rod constitute a bolt, just spiral shell head, nut linkage segment, screw rod distribute in proper order from the top down, and integrated into one piece, be equipped with the fastening groove on the nut linkage segment, through the screw-thread fit installation between fastening groove between nut linkage segment and the nut, just the top of nut is equipped with the fastening limit, just the fastening limit with integrated into one piece between the nut, the outer fringe of screw rod all is equipped with first screw thread portion. The utility model discloses the design has one section nut linkage segment between spiral shell head and screw rod, and the diameter size of nut linkage segment is greater than the diameter size of screw rod, and screw-thread fit installs between nut linkage segment and the nut to fastening chamber fastening connection in fastening limit on the nut and the spiral shell head, thereby can increase the fixity of bolt, improve the locking effect that moves of bolt.

Description

Anti-loosening bolt

Technical Field

The utility model relates to a bolt field, in particular to locking bolt that moves.

Background

Bolt: mechanical parts, cylindrical threaded fasteners fitted with nuts. 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.

Then, when the existing bolt is fixed on a machine or an object, certain vibration can be generated when the machine runs or the object generates positive vibration, and the bolt can be loosened when the bolt is vibrated, so that the bolt is required to be prevented from loosening.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main aim at provides an anti-loosening bolt, can effectively solve the problem in the background art.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides an anti-loosening bolt, includes spiral shell head, screw rod and nut linkage segment, spiral shell head, nut linkage segment, screw rod constitute a bolt, just spiral shell head, nut linkage segment, screw rod distribute in proper order under to by last, and integrated into one piece, be equipped with the fastening groove on the nut linkage segment, through the screw-thread fit installation between the fastening groove between nut linkage segment and the nut, just the top of nut is equipped with the fastening limit, just the fastening limit with integrated into one piece between the nut, the outer fringe of screw rod all is equipped with first screw thread portion.

Further, the screw head is regular hexagon shape, and the top of screw head position in the middle is equipped with a word recess.

Further, the fastening edge is in the shape of a hollow ring, and the fastening edge is placed in the fastening cavity and is installed in threaded fit with the second threaded portion in the fastening cavity.

Furthermore, two symmetrically distributed fixing edges are welded on two sides of the nut, and second positioning holes are formed in the fixing edges.

Furthermore, the top surface of the screw head is provided with a concave cavity at the side position, a first positioning hole is formed in the concave cavity, and the first positioning hole penetrates through the screw head.

Furthermore, the first positioning hole and the second positioning hole are located on the same vertical plane and are fixed by screws.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. the utility model is provided with a section of nut connecting section between the screw head and the screw rod, the diameter of the nut connecting section is larger than that of the screw rod, the nut connecting section and the nut are installed in a thread fit way, and the fastening edge on the nut is fastened and connected with the fastening cavity in the screw head, thereby increasing the fixity of the bolt and improving the anti-loosening effect of the bolt;

2. the utility model has the advantages that the fixing edges are welded on the two side edges of the nut, and the second positioning space on the fixing edges is fixed with the first positioning hole on the screw head by the screw, so that the anti-loosening effect of the bolt can be better increased;

3. the utility model discloses the design has the cavity on the top of spiral shell head, and the cavity can be accomodate the screw in the cavity to do not influence the use of bolt.

Drawings

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

Fig. 2 is a schematic view of a partial structure of the present invention.

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

Fig. 4 is a schematic structural view of the screw head of the present invention.

In the figure: 1. a screw head; 101. a straight groove; 2. a screw; 3. a first threaded portion; 4. a nut; 401. fastening the edges; 5. fixing the edge; 501. a second positioning hole; 6. a nut connecting section; 7. a fastening groove; 8. a concave cavity; 9. a first positioning hole; 10. a fastening cavity; 11. and a second threaded portion.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

Referring to fig. 1-4, an anti-loosening bolt includes a bolt head 1, a screw rod 2 and a nut connection section 6, wherein the bolt head 1, the nut connection section 6 and the screw rod 2 form a bolt, the bolt head 1, the nut connection section 6 and the screw rod 2 are sequentially distributed from top to bottom and are integrally formed, a fastening groove 7 is formed in the nut connection section 6, the nut connection section 6 and the nut 4 are installed in a threaded fit manner through the fastening groove 7, a fastening edge 401 is arranged at the top of the nut 4, the fastening edge 401 and the nut 4 are integrally formed, and a first thread portion 3 is arranged on the outer edge of the screw rod 2.

Specifically, as shown in fig. 1, the screw head 1 is in a regular hexagonal shape, and a straight groove 101 is formed in the center of the top of the screw head 1.

Through adopting above-mentioned scheme, spiral shell head 1 is regular hexagon shape, and the top position department placed in the middle of spiral shell head 1 is equipped with a word recess 101, can rotate the effect through a word recess 101 to the bolt.

Specifically, as shown in fig. 3, the fastening edge 401 has a hollow ring shape, and the fastening edge 401 is disposed in the fastening cavity 10 and is installed in threaded engagement with the second threaded portion 11 in the fastening cavity 10.

By adopting the scheme, the fastening edge 401 is in the shape of a hollow ring, the fastening edge 401 is arranged in the fastening cavity 10, and the second thread part 11 in the fastening cavity 10 is installed in a thread fit mode to fix the fastening edge 401.

Specifically, as shown in fig. 3, two symmetrically distributed fixing edges 5 are welded to two sides of the nut 4, and the fixing edges 5 are provided with second positioning holes 501.

Through adopting above-mentioned scheme, the both sides welding of nut 4 has two symmetric distribution's fixed limit 5, has seted up second locating hole 501 on the fixed limit 5, uses the screw to carry out the fixed action to fixed limit 5.

Specifically, as shown in fig. 2, a concave cavity 8 is formed in the top surface of the screw head 1 at the side position, a first positioning hole 9 is formed in the concave cavity 8, and the first positioning hole 9 penetrates through the screw head 1.

Through adopting above-mentioned scheme, the top surface of spiral shell head 1 is located avris position department and is equipped with cavity 8, has seted up first locating hole 9 in cavity 8, and first locating hole 9 runs through in spiral shell head 1, increases the fixed effect to the bolt.

Specifically, as shown in fig. 2, the first positioning hole 9 and the second positioning hole 501 are located on the same vertical plane and are fixed by screws.

It should be noted that, the utility model relates to a locking bolt that moves, when using this well bolt, at first, pass first screw thread portion 3 on the screw rod 2 with nut 4, screw-thread fit installation between the internal thread in the nut 4 and the fastening groove 7 on the nut linkage segment 6, and screw-thread fit installation between the internal thread in the fastening limit 401 that constitutes with nut 4 an organic whole and the second screw thread portion 11 in the fastening chamber 10, make fastening limit 401 arrange the fastening chamber 10 in the spiral shell head 1 in, and the second locating hole 501 and the first locating hole 9 on the fixed limit 5 on the nut 4 are in on the same perpendicular, adopt the screw to fix, can increase bolted connection's pretightning force, further improve the steadiness of bolt.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides an anti-loosening bolt, includes spiral shell head (1), screw rod (2) and nut linkage segment (6), its characterized in that: the utility model discloses a nut, screw rod, nut and nut connecting section, screw rod and nut, screw head (1), nut connecting section (6), screw rod (2) constitute a bolt, just screw head (1), nut connecting section (6), screw rod (2) distribute in proper order under to by last, and integrated into one piece, be equipped with fastening groove (7) on nut connecting section (6), through screw-thread fit installation between fastening groove (7) between nut connecting section (6) and nut (4), just the top of nut (4) is equipped with fastening limit (401), just fastening limit (401) with integrated into one piece between nut (4), the outer fringe of screw rod (2) all is equipped with first screw thread portion (3).

2. A locking bolt as defined in claim 1, wherein: the screw head (1) is in a regular hexagon shape, and a straight groove (101) is formed in the center of the top of the screw head (1).

3. A locking bolt as defined in claim 1, wherein: the fastening edge (401) is in the shape of a hollow ring, and the fastening edge (401) is arranged in the fastening cavity (10) and is in threaded fit with the second threaded part (11) in the fastening cavity (10).

4. A locking bolt as defined in claim 1, wherein: two symmetrically distributed fixing edges (5) are welded on two sides of the nut (4), and second positioning holes (501) are formed in the fixing edges (5).

5. A locking bolt as defined in claim 1, wherein: the top surface of spiral shell head (1) is located avris position department and is equipped with cavity (8), just first locating hole (9) have been seted up in cavity (8), first locating hole (9) run through in spiral shell head (1).

6. A locking bolt as defined in claim 5, wherein: the first positioning hole (9) and the second positioning hole (501) are located on the same vertical plane and are fixed through screws.