阅读说明：本技术 一种螺栓防松脱结构 (Bolt anti-loosening structure ) 是由 朱汉华 朱进 于 2019-09-24 设计创作，主要内容包括：本发明公开了一种螺栓防松脱结构,防脱离本体上设有螺孔,在螺孔的底面设有限位孔,在防脱离本体的侧壁上均匀设有若干个安装孔,在限位孔内设有第一弹簧和挡块,挡块通过第一弹簧弹性支撑在限位孔内,且挡块的上端面伸于螺孔内；在每个安装孔的外孔口处螺纹连接一个拆卸头,每个安装孔的孔内插接有第二弹簧和锁紧防掉块,且第二弹簧的一端抵触在拆卸头上,另一端抵触在锁紧防掉块上,锁紧防掉块的一端面抵触在挡块的外壁面上。本发明结构简单,在使用时,即使螺栓与螺帽(防脱离本体)之间发生松动的现象,螺栓也不会与螺帽之间松脱,安全系数高,且结构便于拆卸,使用时,无需通过暴力破坏结构去旋开螺栓,使用效果。(The invention discloses a bolt anti-loosening structure.A screw hole is arranged on an anti-loosening body, a limiting hole is arranged on the bottom surface of the screw hole, a plurality of mounting holes are uniformly arranged on the side wall of the anti-loosening body, a first spring and a stop block are arranged in the limiting hole, the stop block is elastically supported in the limiting hole through the first spring, and the upper end surface of the stop block extends into the screw hole; the outer orifice department threaded connection of every mounting hole dismantles the head, and the downthehole grafting of every mounting hole has the second spring and locks to prevent falling the piece, and the one end of second spring is contradicted on dismantling the head, and the other end is contradicted on locking prevents falling the piece, and locking prevents falling a terminal surface of piece and contradicts on the outer wall of dog. The anti-loosening bolt has the advantages that the structure is simple, the bolt cannot be loosened from the nut even if the bolt is loosened from the nut (the anti-loosening body) in use, the safety coefficient is high, the structure is convenient to disassemble, the bolt does not need to be unscrewed through violence damage in use, and the use effect is achieved.)

1. The utility model provides a bolt locking structure that takes off which characterized in that: the anti-separation device comprises an anti-separation body (2), wherein a screw hole (21) is formed in the anti-separation body (2), the screw hole (21) is of a blind hole structure, a limiting hole (22) is formed in the bottom surface of the screw hole (21), a plurality of mounting holes (20) are uniformly formed in the side wall of the anti-separation body (2), and the mounting holes (20) are perpendicular to and communicated with the limiting hole (22);

a first spring (221) and a stop block (222) are arranged in the limiting hole (22), the stop block (222) is elastically supported in the limiting hole (22) through the first spring (221), and the upper end face of the stop block (222) extends into the screw hole (21);

the outer orifice department threaded connection of every mounting hole (20) dismantles head (201), and the downthehole grafting of every mounting hole (20) has second spring (202) and locking to prevent falling piece (203), and the one end of second spring (202) is contradicted on dismantling head (201), and the other end is contradicted on locking prevents falling piece (203), and the locking prevents falling a terminal surface of piece (203) and stretches out outside mounting hole (20) and contradicts on the outer wall of dog (222).

2. The bolt loosening prevention structure according to claim 1, wherein: the bottom surface of the stop block (222) is provided with a first limiting table (223), the bottom surface of the limiting hole (22) is provided with a second limiting table (224), and the upper end and the lower end of the first spring (221) are respectively clamped in the first limiting table (223) and the second limiting table (224).

3. The bolt loosening prevention structure according to claim 1, wherein: the mounting hole (20) is of a step hole structure with a large hole part and a small hole part, the dismounting head (201) is in threaded connection with the small hole part, and the locking anti-falling block (203) is inserted in the large hole part.

4. The bolt loosening prevention structure according to claim 1, wherein: be equipped with spacing post (2011) on the inner wall of dismantlement head (201), be equipped with on the inner terminal surface that locking prevented falling piece (203) and dismantle post (2031), the pot head of second spring (202) is established on spacing post (2011), and another pot head is established on dismantling post (2031).

5. The bolt loosening prevention structure according to claim 4, wherein: and a threaded hole is formed in the axis direction of the outer end face of the dismounting column (2031).

The technical field is as follows:

the invention relates to a bolt anti-loosening structure.

Background art:

contact surface between current bolt and the nut is mostly the plane, when the great use occasion of vibrations uses, can appear not hard up phenomenon between bolt and the nut, if the discovery is untimely, easily causes equipment trouble or potential safety hazard, consequently, really has necessary to improve prior art in order to solve prior art not enough.

The invention content is as follows:

the invention provides a bolt anti-loosening structure for solving the problems in the prior art.

The technical scheme adopted by the invention is as follows: a bolt anti-loosening structure comprises an anti-loosening body, wherein a screw hole is formed in the anti-loosening body, the screw hole is of a blind hole structure, a limiting hole is formed in the bottom surface of the screw hole, a plurality of mounting holes are uniformly formed in the side wall of the anti-loosening body, and the mounting holes are perpendicular to and communicated with the limiting hole;

a first spring and a stop block are arranged in the limiting hole, the stop block is elastically supported in the limiting hole through the first spring, and the upper end face of the stop block extends into the screw hole;

the outer orifice department threaded connection of every mounting hole dismantles the head, and the downthehole grafting of every mounting hole has the second spring and locks to prevent falling the piece, and the one end of second spring is contradicted on dismantling the head, and the other end is contradicted on locking prevents falling the piece, and locking prevents that a terminal surface that falls the piece stretches out outside the mounting hole and contradicts on the outer wall of dog.

Furthermore, a first limiting table is arranged on the bottom surface of the stop block, a second limiting table is arranged on the bottom surface of the limiting hole, and the upper end and the lower end of the first spring are respectively clamped in the first limiting table and the second limiting table.

Furthermore, the mounting hole is of a step hole structure with a large hole part and a small hole part, the dismounting head is connected in the small hole part in a threaded mode, and the locking anti-falling block is inserted in the large hole part in a plugged mode.

Furthermore, the inner wall of the disassembling head is provided with a limiting column, the inner end face of the locking anti-falling block is provided with a disassembling column, one end of the second spring is sleeved on the limiting column, and the other end of the second spring is sleeved on the disassembling column.

Further, a threaded hole is formed in the axial direction of the outer end face of the disassembling column.

The invention has the following beneficial effects:

the anti-loosening bolt has the advantages that the structure is simple, the bolt cannot be loosened from the nut even if the bolt is loosened from the nut (the anti-loosening body) in use, the safety coefficient is high, the structure is convenient to disassemble, the bolt does not need to be unscrewed through violence damage in use, and the use effect is achieved.

Description of the drawings:

FIG. 1 is a block diagram of the present invention.

Fig. 2 is a partially enlarged view structural view of the present invention.

Fig. 3 is a diagram illustrating an application structure of the present invention.

Fig. 4 to 6 are diagrams illustrating application steps of the present invention.

The specific implementation mode is as follows:

the invention will be further described with reference to the accompanying drawings.

Referring to fig. 1 and 2, the bolt anti-loosening structure of the present invention includes an anti-loosening body 2 having a cylindrical structure, wherein a blind hole is formed in the axial direction of the anti-loosening body 2, the blind hole has a stepped hole structure and includes a screw hole 21 and a limiting hole 22, the screw hole 21 has a diameter larger than that of the limiting hole 22.

Evenly be equipped with a plurality of mounting hole 20 (at least three) on the lateral wall of anticreep body 2, mounting hole 20 sets up along the radial direction of anticreep body 2, and mounting hole 20 link up with spacing hole 22 mutually. The first spring 221 and the stopper 222 are disposed in the stopper hole 22, the stopper 222 is elastically supported in the stopper hole 22 by the first spring 221, and the upper end surface of the stopper 222 extends into the screw hole 21.

The outer orifice of each mounting hole 20 is in threaded connection with a dismounting head 201, a second spring 202 and a locking anti-falling block 203 are inserted into the hole of each mounting hole 20, one end of the second spring 202 in each mounting hole 20 abuts against the dismounting head 201, the other end of the second spring 202 abuts against the locking anti-falling block 203, and one end face of the locking anti-falling block 203 extends out of the mounting hole 20 and abuts against the outer wall face of the stop block 222.

A magnet piece 204 is fixed to the outer end surface of the locking anti-drop block 203 (or the outer end surface of the locking anti-drop block 203 is magnetized), and the magnet piece 204 abuts against the outer end surface of the stopper 222.

The stopper 222 is made of a non-magnetic metal material (e.g., copper, aluminum, etc.), and the stopper 222 and the magnet piece 204 are not attracted to each other, so that the stopper 222 slides downward against the magnet piece 204.

In order to facilitate the limit installation of the first spring 221, a first limit stage 223 is arranged on the bottom surface of the stopper 222, a second limit stage 224 is arranged on the bottom surface of the limit hole 22, and the upper end and the lower end of the first spring 221 are respectively clamped in the first limit stage 223 and the second limit stage 224.

The mounting hole 20 of the invention is a step hole structure with a big hole part and a small hole part, the dismounting head 201 is screwed in the small hole part, and the locking anti-falling block 203 is inserted in the big hole part. In order to facilitate the installation of the second spring 202, a limiting post 2011 is arranged on the inner wall of the detaching head 201, a detaching post 2031 is arranged on the inner end face of the locking anti-falling block 203, one end of the second spring 202 is sleeved on the limiting post 2011, and the other end of the second spring 202 is sleeved on the detaching post 2031.

A screw hole for removal is provided in the axial direction of the outer end surface provided on the removal column 2031.

As shown in fig. 3, in order to be used in conjunction with a drop-off prevention bolt having a specific structure, the bolt 1 has a structure as shown in fig. 3, in which a cylindrical locking piece 13 is provided on a bottom surface of the bolt 1, and a diameter of the locking piece 13 is equal to a diameter of the stopper 222. A locking groove 131 is provided on an outer wall surface of the locking block 13.

The use of the present invention is described in detail below with reference to fig. 4 to 6:

the threaded connection portion 11 of the bolt 1 is first screwed into the screw hole 21, the hexagonal bolt head 12 is rotated to move the threaded connection portion 11 toward the bottom of the screw hole 21, and the locking block 13 is brought into contact with the stopper 222. The hexagonal bolt head 12 continues to rotate, the locking block 13 gradually presses the stop block 222 downwards, the stop block 222 overcomes the spring force and moves towards the limiting hole 22, and the locking anti-falling block 203 always abuts against the outer wall of the stop block 222 in the downward movement process of the stop block 222. When the click sound is heard, the locking anti-drop block 203 is clamped in the locking groove 131 on the locking block 13, at the moment, the bottom surface of the threaded connecting part 11 just abuts against the bottom surface of the screw hole 21, and the assembly between the whole bolt 1 and the anti-drop body 2 is completed.

When the bolt 1 needs to be disassembled, the disassembling head 201 is unscrewed firstly, the second spring 202 is poured out, then a screw rod is screwed into the threaded hole in the disassembling column 2031, and then the locking anti-falling block 203 is pulled out outwards, so that the locking anti-falling block 203 can be separated from the locking block 13. When the screw rod is loosened, the screw rod is pulled outwards, the locking anti-falling block 203 is enabled to tightly abut against the stepped hole surface of the mounting hole 20, and then the screw rod is rotated reversely, so that the screw rod can be loosened and detached.

After the bolt 1 is detached, the stopper 222 is restored to the initial position under the action of the spring force, and then the second spring 202 is placed in the bolt 1, and the detaching head 201 is mounted.

After the bolt 1 is locked and fixed with the anti-separation body 2, when large vibration is encountered, the locking anti-separation block 203 is provided with the magnet, so that the locking anti-separation block is always adsorbed in the locking groove 131 of the locking block 13, and the bolt 1 cannot be separated from the anti-separation body 2.

The foregoing is only a preferred embodiment of this invention and it should be noted that modifications can be made by those skilled in the art without departing from the principle of the invention and these modifications should also be considered as the protection scope of the invention.