CN217055903U

CN217055903U - Anti-loose and anti-theft nut and disassembling tool thereof

Info

Publication number: CN217055903U
Application number: CN202220753643.3U
Authority: CN
Inventors: 钟雷; 曾梓尧; 陈嘉华
Original assignee: Zhuhai Gugu Technology Co ltd
Current assignee: Zhuhai Gugu Technology Co ltd
Priority date: 2022-03-31
Filing date: 2022-03-31
Publication date: 2022-07-26
Anticipated expiration: 2032-03-31

Abstract

The utility model discloses a locking antitheft nut and extracting tool thereof provides an effectual, simple installation of theftproof, easily manufacturing's locking antitheft nut and is used for dismantling this locking antitheft nut's extracting tool. The utility model provides a locking antitheft nut includes main nut and clamping ring, and main nut includes the screw thread bearing part, is equipped with outside extension's shrink screw portion along the coaxial axial of screw thread bearing part, is equipped with deformation connecting portion between shrink screw portion and the screw thread bearing part, and shrink screw portion outward appearance is the conical surface, and the clamping ring is cyclic annular, and the clamping ring internal surface is mutually supported with shrink screw portion surface, and a plurality of extrusion grooves have been seted up to the clamping ring surface, the utility model provides a extracting tool includes main part, screw, and the main part bottom is seted up flutedly, and the recess includes clamping part, cladding portion, and the cladding portion diameter is greater than clamping part, and a plurality of mounting holes have been seted up at clamping part to the main part, is equipped with the screw in the mounting hole, and screw with screw complex has been seted up on the main part top. The utility model discloses be applied to fastener technical field.

Description

Anti-loose and anti-theft nut and disassembling tool thereof

Technical Field

The utility model relates to a fastener technical field especially relates to a locking antitheft nut and extracting tool thereof.

Background

Fasteners such as bolts, nuts, screws and the like are the main structural forms for mechanical part connection. Ordinary fastener is receiving under the condition of vibration, and is becoming flexible easily, leads to equipment trouble, probably causes the incident even, causes loss of property, threatens personal safety, so, the locking problem of fastener receives more and more attention. Meanwhile, for some outdoor installed unattended equipment, such as a part of electric power facilities, rail transit facilities, communication facilities, etc. The fasteners used by the devices also need to have the function of theft prevention, and the accidental disassembly and damage caused by people are prevented.

For bolt and nut connection, various locknuts are available at present, and loosening can be prevented. Such as hadrock nuts in japan, but none have an anti-theft function.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that overcome prior art not enough, provide a locking antitheft nut and extracting tool that not only locking is effectual but also can prevent burglary, simple installation, easily manufacturing.

The utility model aims to solve the technical problem that prior art is not enough overcome, provide a locking antitheft nut, locking antitheft nut includes main nut and clamping ring, main nut includes the screw thread bearing part, follows the coaxial axial of screw thread bearing part is equipped with outside extension's shrink screw portion, shrink screw portion with be equipped with deformation connecting portion between the screw thread bearing part, shrink screw portion outward appearance is the conical surface, the clamping ring is cyclic annular, the clamping ring internal surface with shrink screw portion outward surface mutually supports, a plurality of extrusion grooves have been seted up to the clamping ring surface.

Further optimally, anti-skidding lines are arranged in the extrusion groove.

Further optimally, the openings at the top and the bottom of the compression ring are respectively an opening A and an opening B, and the diameter of the opening A is smaller than that of the opening B.

The utility model also provides a extracting tool for dismantling above-mentioned locking antitheft nut, extracting tool includes main part, screw, the main part bottom is seted up flutedly, the recess includes clamping part, cladding portion, the cladding portion diameter is greater than the clamping part, the main part is in a plurality of mounting holes have been seted up to the clamping part, be equipped with the screw thread in the mounting hole, the main part top seted up with screw complex screw, the screw bottom with the clamping part top is connected.

Further optimally, the depth of the groove is equal to the height of the combination of the thread bearing part of the main nut and the press ring.

Further preferably, the diameter of the screw hole is smaller than the diameter of the clamping portion.

Further optimally, a plurality of mortise holes are formed in the main body, the horizontal height of each mortise hole is higher than that of each mounting hole, and the efficiency of the dismounting tool during dismounting operation is improved.

The utility model has the advantages that: the utility model provides a locking antitheft nut passes through main nut with the clamping ring is mutually supported and is realized the auto-lock, when playing locking effect because the clamping ring surface does not have the edges and corners and hardly dismantles the clamping ring with general purpose tool commonly used, and the clamping ring is not dismantled under the condition that falls main nut can't be dismantled to reach the guarantee of theftproof, simple structure, the easily manufacturing of clamping ring have reduced manufacturing cost.

The utility model provides a disassembling tool is as the special disassembling tool of above-mentioned locking antitheft nut, and it sets up a plurality of mounting holes through the clamping part in the recess that sets up, twist in the mounting hole and lead to the fact inside extrusion to the clamping ring after tight bolt, let the clamping ring with the main nut relieve from the auto-lock, be convenient for dismantle it; through the mortise arranged on the main body, the lever can be inserted when the main body is disassembled, so that the disassembling difficulty is reduced, and the disassembling efficiency is improved.

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 description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the description below are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic view of the structure of the anti-loose and anti-theft bolt of the present invention;

fig. 2 is a cross-sectional view of the main nut of the present invention;

fig. 3 is a schematic structural view of the pressure ring in the present invention;

fig. 4 is a cross-sectional view of the compression ring according to the present invention;

fig. 5 is a schematic structural view of the detaching tool in the present invention;

fig. 6 is a cross-sectional view of the removal tool of the present invention;

FIG. 7 is a schematic view of the middle anti-loosening anti-theft bolt of the present invention during installation;

fig. 8 is a schematic view of the dismounting tool of the present invention for dismounting the anti-loosening and anti-theft bolt.

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.

As shown in fig. 1 to 4, locking antitheft nut includes main nut 1 and clamping ring 2, main nut 1 includes screw thread bearing part 4, follows screw thread bearing part 4 coaxial axial is equipped with outside extension shrink screw portion 5, shrink screw portion 5 with be equipped with deformation connecting portion 6 between the screw thread bearing part 4, shrink screw portion 5 outward surface is the conical surface, clamping ring 2 is cyclic annular, 2 internal surfaces of clamping ring with shrink screw portion 5 surface is mutually supported, a plurality of extrusion grooves 7 have been seted up to 2 external surfaces of clamping ring, be equipped with anti-skidding line in the

extrusion groove

7, 2 tops of clamping ring and bottom opening are A mouth 16, B mouth 17 respectively, the diameter of A mouth 16 is less than the diameter of B mouth 17.

As shown in fig. 5 to 6, the disassembling tool is used as a special disassembling tool for the anti-loose and anti-theft nut, and is used in cooperation with the anti-loose and anti-theft nut, the disassembling tool 3 includes a main body 8 and a screw 9, a groove 10 is formed at the bottom of the main body 8, the groove 10 includes a clamping portion 11 and a cladding portion 12, the diameter of the cladding portion 12 is greater than that of the clamping portion 11, a plurality of mounting holes 13 are formed in the clamping portion 11 of the main body 8, threads are arranged in the mounting holes 13, a screw hole 14 matched with the screw 9 is formed at the top end of the main body 8, the bottom end of the screw hole 14 is connected with the top end of the clamping portion 11, the depth of the groove 10 is equal to the height of the thread bearing portion 4 of the main nut 1 combined with the press ring 2, the diameter of the screw hole 14 is less than that of the clamping portion 11, a plurality of mortise holes 15 are formed in the main body 8, and the horizontal height of the mortise holes 15 is higher than that of the mounting holes 13, the efficiency of the disassembling tool 3 in the disassembling operation is improved.

As shown in fig. 7, when the anti-theft and anti-loosening nut is installed, the main nut 1 is firstly screwed into a matched bolt, the thread bearing part 4 is close to a workpiece to be fastened, after the nut is screwed to a specified torque to reach a required clamping force, one end of the opening B17 of the press ring 2 is sleeved on the contraction thread part 5, an external thread beyond the bolt is screwed in by using a common standard nut, the press ring 2 is pressed downwards, the inner surface of the press ring 2 and the outer surface of the contraction thread part 5 interact with each other to enable the thread contraction part to contract inwards until the external thread of the internal thread of the thread contraction part presses the external thread of the bolt, then the common nut is screwed out, because the inward pressing force of the inner surface of the press ring 2 and the outer surface of the contraction thread part 5 and the outward repelling force of the external thread of the internal thread pressing bolt of the thread contraction part generate strong interaction force, the messenger thereby the clamping ring 2 with thereby main nut 1 realizes the auto-lock and reaches locking purpose, and because 2 surfaces of clamping ring do not have edges and corners, so use the instrument of using commonly used and hardly dismantle, under the condition that clamping ring 2 was not dismantled, because the internal thread that the screw thread constriction produced deformation lasts compression bolt's external screw thread, main nut 1 can't be dismantled to reach the purpose of theftproof.

As shown in fig. 8, when the detaching tool 3 is used for detaching, the bottom of the detaching tool 3 is provided with a groove 10 for covering the main nut 1 and the pressing ring 2, the clamping portion corresponds to the position of the pressing ring 2, then the mounting hole 13 is aligned with the extrusion groove 7, the mounting hole 13 is screwed with a matched bolt for applying an inward extrusion acting force to the pressing ring 2 and fixing the pressing ring 2, then the screw 9 is screwed into the screw hole 14 at the top of the detaching tool 3, the screw 9 abuts against the bolt fixed by the main nut 1 to generate an upward acting force to pull out the pressing ring 2, and then the main nut 1 is detached by using a general tool.

For the efficiency when improving the dismantlement, a plurality of mortise 15 have been seted up to

main part

8, and 15 level heights in the mortise are higher than mounting hole 13, upwards extract can be in during the clamping ring 2 the lever reduces the dismantlement degree of difficulty in the mortise 15, raises the efficiency.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. 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 locking antitheft nut, includes main nut (1) and clamping ring (2), its characterized in that: main nut (1) includes screw thread bearing part (4), follows screw thread bearing part (4) coaxial axis is equipped with outside shrink screw thread portion (5) that extend, shrink screw thread portion (5) with be equipped with deformation connecting portion (6) between screw thread bearing part (4), shrink screw thread portion (5) surface is the conical surface, clamping ring (2) are cyclic annularly, clamping ring (2) internal surface with shrink screw thread portion (5) surface is mutually supported, a plurality of extrusion grooves (7) have been seted up to clamping ring (2) surface.

2. The locknut according to claim 1, characterized in that: anti-skid grains are arranged in the extrusion groove (7).

3. The locknut according to claim 1, characterized in that: the opening at the top and the bottom of the pressure ring (2) is respectively an A port (16) and a B port (17), and the diameter of the A port (16) is smaller than that of the B port (17).

4. A disassembling tool for disassembling the locknut according to claim 1, 2 or 3, characterized in that: extracting tool (3) includes main part (8), screw (9), main part (8) bottom is seted up fluted (10), recess (10) are including clamping part (11), cladding portion (12) diameter is greater than clamping part (11), main part (8) are in a plurality of mounting holes (13) have been seted up in clamping part (11), be equipped with the screw in mounting hole (13), main part (8) top seted up with screw (9) complex screw (14), screw (14) bottom with clamping part (11) top is connected.

5. The removal tool of claim 4, wherein: the depth of the groove (10) is equal to the height of the thread bearing part (4) of the main nut (1) combined with the compression ring (2).

6. The removal tool of claim 4, wherein: the diameter of the screw hole (14) is smaller than that of the clamping part (11).

7. The removal tool of claim 4, wherein: a plurality of mortise holes (15) are formed in the main body (8), and the horizontal height of each mortise hole (15) is higher than that of the mounting hole (13).