CN211648755U

CN211648755U - Novel anti-theft bolt

Info

Publication number: CN211648755U
Application number: CN202020228525.1U
Authority: CN
Inventors: 唐睿; 罗东; 张瑞
Original assignee: Yan'an Power Supply Branch Of Shaanxi Local Power Group Co ltd
Current assignee: Yan'an Power Supply Branch Of Shaanxi Local Power Group Co ltd
Priority date: 2020-02-28
Filing date: 2020-02-28
Publication date: 2020-10-09
Anticipated expiration: 2030-02-28

Abstract

The utility model discloses a novel anti-theft bolt, which comprises a screw body and a nut body in threaded fit with the screw body, wherein the bottom end of the screw body is provided with an anti-theft groove which is axially arranged along the screw body and runs through the outer side surface of the screw body; an anti-theft expansion body is movably inserted in the anti-theft groove, and the screw and the nut body are installed and matched to play an anti-theft role through the anti-theft expansion body, so that the nut body cannot be screwed out, and the bolt is prevented from being disassembled; thereby realizing theft prevention.

Description

Novel anti-theft bolt

Technical Field

The utility model relates to a bolt technical field, concretely relates to novel anti-theft bolt.

Background

The bolt is a standard part commonly used in life and is applied to various fields, the conventional bolt is a straight, cross or hexagonal bolt, conventional tools may be used for disassembly, however, some outdoor machines, or outdoor fitness equipment, etc. are easily damaged or stolen by a person, and in addition, in some occasions with vibration, bolts used for fastening are often loosened, so that connection and disconnection are caused, machines fail, and even safety accidents are caused, so that the manufacture of bolts capable of effectively preventing loosening is extremely urgent, the currently used expansion screw with looseness prevention generally comprises a nut, a conical head screw rod and an expansion sleeve pipe with a plurality of notches at the tail part, when in use, the conical head screw rod is gradually withdrawn from the expansion sleeve pipe by screwing the nut, in the process that the conical head screw rod gradually withdraws, the tail part of the sleeve is extruded by the conical head at the tail part of the screw rod and is expanded and deformed, so that the aim of fastening in the reserved drill hole on the wall body is fulfilled. The disadvantage of such expansion bolts is that they do not provide security and once fastened to the mounting surface, the bolts are easily removed.

SUMMERY OF THE UTILITY MODEL

To the defect among the prior art, the utility model provides a novel theftproof bolt has simple structure, characteristics such as theftproof effect is good.

The utility model adopts the technical proposal that: a novel anti-theft bolt comprises a screw body and a nut body in threaded fit with the screw body, wherein an anti-theft groove is formed in the bottom end of the screw body and is axially arranged along the screw body, and the anti-theft groove penetrates through the outer side surface of the screw body; the anti-theft expansion screw is characterized in that an anti-theft expansion body is movably inserted into the anti-theft groove, the length L of the anti-theft expansion body is smaller than the depth D of the anti-theft hole, an expansion supporting part capable of expanding the bottom end of the screw body is arranged at the bottom end of the anti-theft expansion body, and when the screw nut body is screwed on the screw body, the expansion supporting part expands under pressure and expands to expand the front end of the screw body, so that the screw nut body cannot be screwed out.

In the technical scheme: after the screw and the nut body are installed and matched, the nut body cannot be screwed out through the anti-theft expansion body, so that the bolt is prevented from being disassembled; when the anti-theft expansion body is installed, the anti-theft expansion body is completely inserted into the anti-theft groove, the expansion supporting part is arranged at the bottom end of the anti-theft expansion body, after the nut body is screwed into the screw body, the nut body is expanded and deformed along with the screw rotation of the nut body, so that the nut body cannot rotate when being unscrewed in the opposite direction, and therefore the anti-theft effect is achieved, and the nut body can be prevented from being detached after being installed through the structure.

Preferably, the anti-theft groove is arranged in a cross shape, and the anti-theft expansion body is in plug fit with the anti-theft groove.

Preferably, the top end of the screw body is provided with a mounting head which is arranged in a regular polygonal prism shape.

Preferably, the screw body is integrally formed with the mounting head.

Preferably, one end of the anti-theft expansion body, which is far away from the expansion supporting part, is provided with a mounting ring which movably penetrates through the screw body.

Preferably, the mounting ring and the anti-theft expansion body are integrally formed.

Preferably, the expansion supporting part is arranged in a cone shape, and the anti-theft expansion body and the expansion supporting part are integrally formed.

Preferably, the edges of the expansion support are rounded.

Preferably, the end face of the bottom end of the screw body is provided with a positioning groove, and after the anti-theft expansion body is inserted into the anti-theft groove, the expansion supporting part penetrates into the anti-theft groove from the positioning groove.

The utility model has the advantages that: the utility model provides a novel theftproof bolt passes through the cooperation of parts such as screw rod body, nut body and theftproof inflation body, back on nut body screw in screw rod body, along with the spiral rotation fastening of nut body, the inflation supporting part props big and take place to warp with the screw rod body, makes the nut body can not rotate when unscrewing in the opposite direction, not only realizes the theftproof to bolted connection's steadiness can be improved. The utility model discloses it is rational in infrastructure, higher practical value has.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

Fig. 1 is an exploded view of a novel anti-theft bolt according to an embodiment of the present invention.

Fig. 2 is an installation schematic view of the novel anti-theft bolt provided by the embodiment of the present invention.

Reference numerals: the anti-theft nut comprises a screw body 100, an anti-theft groove 110, a mounting head 120, a positioning groove 130, a nut body 200, an anti-theft expansion body 300, an expansion supporting part 310 and a mounting ring 320.

Detailed Description

Here, it is to be noted that the functions, methods, and the like related to the present invention are only conventional adaptive applications of the related art. Therefore, the present invention is an improvement of the prior art, which substantially lies in the connection relationship between hardware, not in the functions and methods themselves, that is, the present invention relates to a few functions and methods, but does not include the improvements proposed in the functions and methods themselves. The present invention is described for better illustration of the function and method for better understanding of the present invention.

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

It is to be noted that unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the present invention belongs.

Referring to fig. 1 and fig. 2, the novel anti-theft bolt provided in this embodiment includes a bolt body 100 and a nut body 200 in threaded fit with the bolt body 100, wherein an anti-theft slot 110 is formed at the bottom end of the bolt body 100 and axially arranged along the bolt body 100, and the anti-theft slot 110 penetrates through the outer side surface of the bolt body 100; an anti-theft expansion body 300 is movably inserted in the anti-theft groove 110, the length L of the anti-theft expansion body 300 is smaller than the depth D of the anti-theft hole, an expansion supporting part 310 capable of expanding the bottom end of the screw body 100 is arranged at the bottom end of the anti-theft expansion body 300, and after the screw nut body 200 is screwed on the screw body 100, the expansion supporting part expands under pressure and expands to expand the front end of the screw body 100, so that the screw nut body 200 cannot be screwed out. In this embodiment, the screw and the nut body 200 are installed and matched to prevent the nut body 200 from being unscrewed due to the anti-theft function of the anti-theft expansion body 300, thereby preventing the bolt from being detached.

As shown in fig. 1 and 2, when the nut body 200 is screwed into the screw body 100, the expansion support portion 310 is formed at the bottom end of the anti-theft expansion body 300, and the nut body 200 is screwed into the screw body 100, and then the nut body 200 is screwed and tightened, so that the expansion support portion 310 expands and deforms the screw body 100, and the nut body 200 cannot rotate when being unscrewed in the opposite direction, thereby preventing the nut body 200 from being removed after being mounted.

As shown in fig. 1 and fig. 2, as mentioned above, the anti-theft groove 110 needs to accommodate the anti-theft expansion body 300, and on the other hand, after the anti-theft expansion body 300 is inserted, the screw body 100 needs to be expanded, in this embodiment, the anti-theft groove 110 is set to be cross-shaped, and the anti-theft expansion body 300 is inserted into the anti-theft groove 110. The anti-theft groove 110 arranged in a cross shape can divide the screw body 100 into a plurality of columns, and when the anti-theft expansion body 300 is inserted into the opening of the anti-theft groove 110, the screw body 100 can expand under the supporting action of the expansion supporting part, so that the anti-theft effect is improved.

As shown in fig. 1 and 2, in order to facilitate installation of the fastening bolt, the screw body 100 of the present embodiment is provided with an installation head 120 at the top end thereof, and the installation head 120 is arranged in a regular polygonal prism. The mounting head 120 can be used to fasten an anti-theft bolt, and is used to fix the screw body 100 with a fastening tool such as a wrench during mounting, thereby facilitating the rotation of the nut body 200 for fixing. Further, the screw body 100 in the present embodiment is integrally formed with the mounting head 120. The screw body 100 is integrally formed with the mounting head 120 to ensure structural strength of the bolt.

As shown in fig. 1 and fig. 2, since the anti-theft expansion body 300 needs to be inserted into the anti-theft slot 110 before being fixed by the bolt, in order to facilitate installation, an installation ring 320 movably penetrating through the screw body 100 is disposed at an end of the anti-theft expansion body 300 away from the expansion support portion 310. The installation ring 320 is provided to facilitate the insertion and installation of the expansion support portion 310 into the anti-theft slot 110. Further, the mounting ring 320 is integrally disposed with the antitheft expansion body 300. The mounting ring 320 is integrally formed with the anti-theft expansion body 300 to improve the structural strength of the anti-theft expansion body.

As shown in fig. 1 and fig. 2, the expansion support 310 provided on the expansion body 300 for preventing theft in this embodiment is used for expanding the screw body 100, the expansion support 310 in this embodiment is arranged in a cone, and the expansion body 300 and the expansion support 310 are integrally formed. The expansion support part 310 can support the screw body 100 under pressure. Further, the edges of the expansion support 310 are rounded. Damage to the screw body 100 may be reduced when the expansion support 310 supports the screw body 100. In addition, the positioning groove 130 is further disposed on the end surface of the bottom end of the screw body 100, so that when the anti-theft expansion body 300 is inserted into the anti-theft groove 110, the expansion supporting portion 310 penetrates into the anti-theft groove 110 from the positioning groove 130.

In the description of the present application, it is to be understood that the terminology used herein is for the purpose of description only and is not intended to be interpreted as indicating or implying any relative importance or implicit indication of the number of technical features indicated. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral combinations thereof; may be an electrical connection; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the specification of the present invention, a large number of specific details are explained. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, systems, and techniques have not been shown in detail in order not to obscure an understanding of this description.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.

Claims

1. The utility model provides a novel anti-theft bolt, includes screw rod body (100) and with screw rod body (100) screw-thread fit's nut body (200), its characterized in that: the bottom end of the screw body (100) is provided with an anti-theft groove (110) which is axially arranged along the screw body (100), and the anti-theft groove (110) penetrates through the outer side surface of the screw body (100); an anti-theft expansion body (300) is movably inserted into the anti-theft groove (110), the length L of the anti-theft expansion body (300) is smaller than the depth D of the anti-theft hole, an expansion supporting portion (310) capable of expanding the bottom end of the screw body (100) is arranged at the bottom end of the anti-theft expansion body (300), and when the screw cap body (200) is screwed on the screw body (100), the expansion supporting portion (310) expands under pressure and expands the front end of the screw body (100) to enable the screw cap body (200) to be incapable of being screwed out.

2. The new anti-theft bolt according to claim 1, characterized in that: the anti-theft groove (110) is arranged in a cross shape, and the anti-theft expansion body (300) is in splicing fit with the anti-theft groove (110).

3. The new anti-theft bolt according to claim 1, characterized in that: the screw rod body (100) top is equipped with installation head (120), installation head (120) are the regular polygon prism and arrange.

4. The new anti-theft bolt according to claim 3, characterized in that: the screw body (100) and the mounting head (120) are integrally formed.

5. The new anti-theft bolt according to claim 1, characterized in that: and one end of the anti-theft expansion body (300) far away from the expansion supporting part (310) is provided with a mounting ring (320) movably penetrating through the screw body (100).

6. The new anti-theft bolt according to claim 5, characterized in that: the mounting ring (320) and the anti-theft expansion body (300) are integrally formed and arranged.

7. The new anti-theft bolt according to claim 1, characterized in that: the expansion supporting part (310) is arranged in a cone shape, and the anti-theft expansion body (300) and the expansion supporting part (310) are integrally formed.

8. The new anti-theft bolt according to claim 1, characterized in that: the edges of the expansion support (310) are rounded.

9. The new anti-theft bolt according to claim 1, characterized in that: be equipped with constant head tank (130) on screw rod body (100) bottom end face, after theftproof inflation body (300) peg graft into theftproof groove (110), inflation supporting part (310) penetrate in theftproof groove (110) from constant head tank (130).