CN218118267U

CN218118267U - Anti-loosening bolt fastener

Info

Publication number: CN218118267U
Application number: CN202222599122.XU
Authority: CN
Inventors: 秦华亮; 秦永强
Original assignee: Jiangsu Lida Industrial Technology Co ltd
Current assignee: Jiangsu Lida Industrial Technology Co ltd
Priority date: 2022-09-29
Filing date: 2022-09-29
Publication date: 2022-12-23
Anticipated expiration: 2032-09-29

Abstract

The utility model relates to a fastener technical field just discloses a bolt fastener that locking takes off, including bolt head and shank of bolt, the shank of bolt is worn to be equipped with the fastening block, the fastening block is seted up flutedly, the fastening block both sides set up threaded hole, screw hole threaded connection has the threaded rod, the threaded rod bottom is rotated and is connected with the stopper, the stopper slides in the recess, accomplishes the back of being connected with nut or the epaxial screw thread at the bolt, twists with the threaded rod of fastening block both sides, and the threaded rod promotes the stopper and removes to the bolt head direction, makes the stopper block jam bolt head through the direction of adjustment fastening block, screws up the threaded rod and accomplishes spacing to the bolt head position, and the bolt also hardly takes place not hard up when making the automobile vibration, and because added the fastening block and made the bolt increase its area of contact, frictional force has also strengthened, can not reduce frictional force because of the interval that the influence of vibration produced, has strengthened automobile parts's stability and holistic security.

Description

Anti-loosening bolt fastener

Technical Field

The utility model relates to a fastener technical field specifically is a bolt fastening spare that locking takes off.

Background

The bolt is a mechanical part, the cylindrical threaded fastener of adapted nut, the fastener of the same kind that comprises head and screw rod (the cylinder that has the external screw thread) two parts, need to cooperate with the nut, be used for the fastening connection two parts 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 parts separate again, so bolted connection belongs to detachable connection, fastening bolt is one of necessary connecting piece among the automobile production assembling process, because can produce the vibration in the course of the work of car, fastening requirement to the bolt is also higher, it has better anti-loosening performance to need the bolt to possess, current bolt relies on the fastening force of the screw thread of bolt member to realize connecting.

The existing bolt has the following problems to be solved in the use process:

when the car is traveling on the road surface of jolting, can produce vibrations, and the bolt is under the operational environment of vibrations for a long time, can lead to the bolt not hard up, make each part of car connect not inseparably enough, bring the potential safety hazard in the car driving process, generally at present can be provided with the gasket between bolt and connecting piece, be used for increasing its area of contact, prevent the junction wearing and tearing, also can play certain relaxation and take off the effect simultaneously, however this kind of solution bolt is when the vibrations pine takes off when using, the rotation of bolt only depends on the frictional force of spring shim, restrict, along with the increase of vibrations time, the interval between bolt and the spring shim increases, frictional force loses gradually, lose and release and take off the effect.

Thus, there is a need for a bolt fastener that is anti-loosening to address the above problems.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the utility model provides a bolt fastener that locking takes off solves the problem that the background art provided for the bolt also hardly takes place not hard up in the time of automobile vibration, has strengthened automobile parts's stability and holistic security.

In order to achieve the purpose, the utility model provides a following technical scheme a bolt fastener that locking takes off, including bolt head and shank of bolt, the shank of bolt wears to be equipped with the holding block, the holding block is seted up flutedly, the screw hole has been seted up to the holding block both sides, screw hole threaded connection has the threaded rod, the threaded rod bottom is rotated and is connected with the stopper, the stopper slides in the recess.

As an optimized technical scheme of the utility model, the stopper is being close to the one side cross section of bolt head and is triangle-shaped.

As an optimized technical scheme of the utility model, hexagonal groove has been seted up to the bolt head bottom surface.

As an optimized technical scheme of the utility model, cross recess has been seted up to hexagonal groove inner wall lower surface.

As an optimal technical scheme of the utility model, spring washer is worn to be equipped with by the shank of bolt, and sets up in the middle of bolt head and fastening block.

As an optimized technical scheme of the utility model, the antiskid groove has been seted up to the grip slipper bottom surface.

As an optimal technical scheme of the utility model, threaded rod bottom cross section is worker's shape, and the middle recessed part is worn to establish inside the stopper.

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

wear to be equipped with the holding block through the shank of bolt, the holding block is seted up flutedly, the threaded hole is seted up to the holding block both sides, screw hole threaded connection has the threaded rod, the threaded rod bottom is rotated and is connected with the stopper, the stopper slides in the recess, accomplish at the bolt and be connected the back with nut or the mechanical screw thread, screw rod with the holding block both sides is twisted and is moved, the threaded rod promotes the stopper and removes to the bolt head direction, the direction through the adjustment holding block makes the stopper block the bolt head, it accomplishes spacing to the bolt head position to screw up the threaded rod, the bolt also hardly takes place to become flexible when making the automobile vibration, automobile parts's stability and holistic security have been strengthened.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.

Fig. 1 is a schematic view of an overall structure of a bolt fastener for preventing loosening according to the present invention;

FIG. 2 is a schematic structural view of a fastening block of a bolt fastener for preventing loosening according to the present invention;

fig. 3 is a schematic view of a cross-sectional structure of the anti-loose bolt fastener of the present invention.

In the figure: 1. a bolt head; 2. a bolt shank; 3. a fastening block; 4. a groove; 5. a threaded hole; 6. a threaded rod; 7. a limiting block; 8. a hexagonal groove; 9. a cross slot; 10. an anti-slip groove; 11. a spring washer.

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.

Please refer to fig. 1-3, a bolt fastener for preventing loosening comprises a bolt head 1 and a bolt rod 2, wherein the bolt rod 2 is provided with a fastening block 3 in a penetrating manner, the fastening block 3 is provided with two grooves 4, which are symmetrically arranged to make the whole spacing more stable, two sides of the fastening block 3 are provided with threaded holes 5, the threaded holes 5 are in threaded connection with threaded rods 6, the effect of pushing the threaded blocks 7 is achieved by rotating the threaded rods 6 in the threaded holes 5, the bottom ends of the threaded rods 6 are rotatably connected with the limiting blocks 7, the limiting blocks 7 slide in the grooves 4, the widths of the limiting blocks 7 are slightly smaller than those of the grooves 4, the limiting blocks 7 are prevented from being brought away from the grooves 4 by the bolt head 1 during spacing, when the bolt needs to be unscrewed, the threaded rods 6 need to be unscrewed first, the limiting blocks 7 are kept away from the bolt head 1, after the bolt is connected with a nut or a mechanical thread, the bolt is screwed on two sides of the fastening block 3, the limiting blocks 6 push the limiting blocks 7 to move towards the direction of the bolt head 1, the bolt head 7 is prevented from being clamped by adjusting the direction, and the bolt head is prevented from being loosened due to the effect that the bolt vibration force of the bolt 3, and the bolt strengthening effect of the bolt is hardly increased.

Further, as shown in fig. 1 and fig. 2, the cross section of the limiting block 7 on the side close to the bolt head 1 is triangular, and the bolt head 1 is hexagonal, and the limiting block 7 with such a shape is provided to better limit the bolt head 1 and clamp two sides of the bolt head 1.

Further, as shown in fig. 1 and 3, the hexagonal groove 8 is formed in the bottom surface of the bolt head 1, and the bolt head 1 may be deformed and slipped due to improper operation or multiple screwing of the bolt head 1 during automobile repair, so that the arrangement of the internal hexagonal groove 8 enables the bolt head 1 to be operated without replacement, and materials are saved.

Further, as shown in fig. 1 and 3, a cross groove 9 is formed in the lower surface of the inner wall of the hexagonal groove 8, and similarly, when the hexagonal groove 8 deforms, the cross groove 9 in the hexagonal groove 8 can be used as a final safety guard to screw out the bolt, so that the service life of the bolt is prolonged.

Further, as shown in fig. 2 and 3, the bolt rod 2 is provided with a spring washer 11 in a penetrating manner, and the spring washer 11 is arranged between the bolt head 1 and the fastening block 3, so that the spring washer 11 plays a role of buffering, a bridge exists between the bolt head 1 and the fastening block 3, and not only is a linkage generated between the bolt head 1 and the fastening block, but also both of the bolt head 1 and the fastening block are not damaged due to excessive extrusion.

Further, as shown in fig. 1, 2 and 3, the bottom surface of the fastening block 3 is provided with an anti-slip groove 10, so that under the condition that sand or oil stains exist on the installation surface, the gripping force on the installation surface is enhanced, and the fastening block 3 can better play a limiting effect.

Further, as shown in fig. 2 and fig. 3, the cross section of the bottom of the threaded rod 6 is in an I shape, the concave part in the middle is arranged inside the limiting block 7 in a penetrating mode, the limiting block 7 is equivalently limited in the setting mode, the limiting block 7 is better controlled, the threaded rod 6 is screwed to move towards the bolt head 1, the threaded rod 6 can push the limiting block 7 to move towards the bolt head 1 while rotating inside the limiting block 7 until the threaded rod 6 is not screwed, and therefore the bolt head 1 is extruded to be limited.

Finally, it should be noted that: in the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate the directions or positional relationships based on the directions or positional relationships shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

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 may be made to the embodiments described above, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a bolt fastener that locking takes off, includes bolt head (1) and shank of bolt (2), its characterized in that, fastening block (3) are worn to be equipped with in shank of bolt (2), fastening block (3) are seted up flutedly (4), threaded hole (5) are seted up to fastening block (3) both sides, threaded hole (5) threaded connection has threaded rod (6), threaded rod (6) bottom is rotated and is connected with stopper (7), stopper (7) slide in recess (4).

2. A release-preventing bolt fastener according to claim 1, characterized in that the stopper (7) is triangular in cross section on the side close to the bolt head (1).

3. The anti-loosening bolt fastener according to claim 1, characterized in that the bottom surface of the bolt head (1) is provided with a hexagonal groove (8).

4. The anti-loosening bolt fastener according to claim 3, characterized in that the lower surface of the inner wall of the hexagonal groove (8) is provided with a cross groove (9).

5. A release-resistant bolt fastener according to claim 1, characterized in that the bolt shank (2) is provided with a spring washer (11) in a penetrating manner and is arranged between the bolt head (1) and the fastening block (3).

6. The anti-loosening bolt fastener according to claim 1, characterized in that the bottom surface of the fastening block (3) is provided with an anti-slip groove (10).

7. The anti-loose bolt fastener according to claim 1, characterized in that the cross section of the bottom of the threaded rod (6) is I-shaped, and the concave part in the middle is arranged inside the limiting block (7).