CN209067638U - A kind of metal screws cap anti-loose structure - Google Patents

Abstract

The utility model discloses a kind of metal screws cap anti-loose structures, including the first nut, external screw thread is provided on the outside of first nut, and first the bottom end of nut be provided with sealing ring, the first internal screw thread is provided on the inside of first nut, and first the end of internal screw thread be connected with the first antislip ring, first nut is threaded with the second nut.The utility model is by being provided with the first nut and the second nut, it can be achieved to carry out bolt level-one locking anticreep, by being provided with the first antislip ring and the second antislip ring, it can be achieved to lock anticreep to the second level of bolt, pass through the first internal screw thread and the second internal screw thread, it can be achieved to lock anticreep to the three-level of bolt, it can also be realized by being provided with sealing ring and anticreep is locked to the level Four of bolt, level Four escapement can fully ensure that bolt after tightening with nut, sliding absent-mindedness not will do it back, big machinery engineering and close instrument is allowed to run smoothness, part will not occur to fall off and contingency.

Description

A kind of metal screws cap anti-loose structure

Technical field

The utility model relates to handware technical field, specially a kind of metal screws cap anti-loose structure.

Background technique

Cap nut is commonly called as nut, bolts and nuts be by the joining machine components of the helix having between them, By spiral, the screw of nut is become the linear motion along bolt axis, reaches distich by tightening and loosening spiral shell The fastening and dismounting of fitting, if we show their helix, the cooperation between them be effectively equivalent to object with The cooperation on inclined-plane, object be placed on inclined-plane why do not fall down mainly with their material (that is frictional force) and inclined-plane Angle etc. it is related, there are an angle of friction between object and inclined-plane, rub as long as the angle on inclined-plane is less than with object and inclined-plane It wipes angle object and would not slide from inclined-plane, here it is nuts to tighten the rear principle that it will not be loosened automatically, exactly Corkscrews Like with inclined-plane so it is very laborsaving, one very little of the hand of spiral have can be obtained in the axial direction of bolt it is one very big Power, that is, the very tight cause that workpiece can be coupled.

Existing cap nut is because applied widely, and the occasion used is also very more, and existing cap nut is for tight Anticreep after Gu be arranged it is insufficient because the use occasion of cap nut includes some close instruments and great mechanical engineering, The environment often shaken may be faced after retaining element, such vibration results in get loose after fastening parts, It is the injury that may be fatal that part, which loosens for some precision instruments either Important Project,.

Utility model content

The purpose of this utility model is to provide a kind of metal screws cap anti-loose structures, to solve in above-mentioned background technique The problem of proposition.

To achieve the above object, the utility model provides the following technical solutions: a kind of metal screws cap anti-loose structure, packet The first nut is included, is provided with external screw thread on the outside of first nut, and the bottom end of the first nut is provided with sealing ring, described The first internal screw thread is provided on the inside of one nut, and the end of the first internal screw thread is connected with the first antislip ring, first nut It is threaded with the second nut, and the second nut is internally provided with clamping ring, the clamping ring is internally provided in second Screw thread, and the end of the second internal screw thread is connected with the second antislip ring, the top of second nut is connected with anti-theft screw cap, and anti- The top for stealing nut is provided with inside groove, and the inside groove is internally provided with connecting column.

Preferably, the sealing ring is fixedly connected with the first nut, and the cross section of sealing ring is circular ring structure, described close Seal is rubber material.

Preferably, second nut is internally provided with third internal screw thread, and third internal screw thread is located at the outer of clamping ring Side, the third internal screw thread match with external screw thread.

Preferably, first internal screw thread and the second internal thread structure are identical, first antislip ring and the second antislip ring Structure is identical, and the first antislip ring and the second antislip ring are all rubber material.

Preferably, the anti-theft screw cap is fixedly connected with the second nut, and the top end opening diameter of anti-theft screw cap is less than it Bottom end opening diameter.

Preferably, the inside groove is five corner structure of arc, and the connecting column is fixedly connected with anti-theft screw cap.

Compared with prior art, the utility model has the beneficial effects that this kind of metal screws cap anti-loose structure is by setting The first nut and the second nut are equipped with, it can be achieved that level-one locking anticreep is carried out to bolt, by being provided with the first antislip ring and the Two antislip rings are, it can be achieved that the second level to bolt locks anticreep, by the first internal screw thread and the second internal screw thread, it can be achieved that bolt Three-level locks anticreep, can also be realized by being provided with sealing ring and lock anticreep to the level Four of bolt, level Four escapement can fill Code insurance demonstrate,proves bolt after tightening with nut, not will do it back sliding absent-mindedness, big machinery engineering and close instrument are transported Row is smooth, and part will not occur and fall off and contingency, by being provided with anti-theft screw cap and special-shaped inside groove, it can be achieved that part is tight Gu after, stealer will not easily can be opened fastenings using tools such as spanners, to steal important equipment, effectively It ensure that the safety of equipment.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model；

Fig. 2 is the anti-theft screw cap structural schematic diagram of the utility model；

Fig. 3 is the second nut internal view of the utility model.

In figure: 1, the first nut；2, external screw thread；3, sealing ring；4, the first internal screw thread；5, the first antislip ring；6, the second spiral shell Cap；7, clamping ring；8, the second internal screw thread；9, the second antislip ring；10, anti-theft screw cap；11, inside groove；12, connecting column；13, in third Screw thread.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

Fig. 1-3, a kind of metal screws cap anti-loose structure, including the first nut 1 are please referred to, the outside of the first nut 1 is set It being equipped with external screw thread 2, and the bottom end of the first nut 1 is provided with sealing ring 3, the inside of the first nut 1 is provided with the first internal screw thread 4, And first the end of internal screw thread 4 be connected with the first antislip ring 5, the first nut 1 is threaded with the second nut 6, and the second nut 6 Be internally provided with clamping ring 7, clamping ring 7 is internally provided with the second internal screw thread 8, and the end of the second internal screw thread 8 is connected with Second antislip ring 9, the top of the second nut 6 is connected with anti-theft screw cap 10, and the top of anti-theft screw cap 10 is provided with inside groove 11, interior Slot 11 is internally provided with connecting column 12.

The use of the new type effectively carries out locking anticreep to bolt, avoids tight by being provided with level Four disconnecting prevention structure The phenomenon that part occurred on close instrument and major mechanical loosens effectively guarantees people's life safety and property safety, and sets Anti-theft screw cap 10 has been set, effectively stealer has been prevented to be stolen.

Please emphatically refering to fig. 1, sealing ring 3 is fixedly connected with the first nut 1, and the cross section of sealing ring 3 is circular ring structure, Sealing ring 3 is rubber material, and the rubber material of sealing ring 3 can effectively increase the frictional force with bolt, prevent bolt from tightening After loosen, the first internal screw thread 4 is identical with 8 structure of the second internal screw thread, and the first antislip ring 5 is identical with 9 structure of the second antislip ring, and One antislip ring 5 and the second antislip ring 9 are all rubber material, and identical two internal thread structures are to guarantee to carry out bolt twice Nut is tightened, and two antislip rings are to prevent falling off for bolt in order to which bolt is carried out increasing friction force twice.

It please focus on refering to Fig. 3, the second nut 6 is internally provided with third internal screw thread 13, and third internal screw thread 13 is located at company The outside of adapter ring 7, third internal screw thread 13 match with external screw thread 2, and third internal screw thread 13 and external screw thread 2 are to connect the first nut 1 and second nut 6, so that connection relationship is not only bolt and nut, there are also nuts and nut, reinforce fastening effect.

Please be emphatically referring to Fig.2, anti-theft screw cap 10 be fixedly connected with the second nut 6, and the top end opening of anti-theft screw cap 10 is straight Diameter is less than its bottom end opening diameter, and the appearance of anti-theft screw cap 10 is flat and smooth, so frictional force very little, will not be turned by general Spanner is opened, and only just be can be carried out and is turned by the tool that matches, and inside groove 11 is five corner structure of arc, connecting column 12 with it is antitheft Nut 10 is fixedly connected, and inside groove 11 is special-shaped inside groove, and common screwing tool can not be turned, so only maintenance personal makes Special matched tool just can be carried out opening, effectively stealer be prevented to be stolen.

Working principle: in use, bolt is tightened entrance from the bottom end of the first nut 1, bolt enters meeting after the first nut 1 It is locked by the first internal screw thread 4, it can also be by 5 increasing friction force of the first antislip ring, to will not carry out back sliding, then by the second nut 6 First nut 1 to be tightened, the second nut 6 is internally provided with the third internal screw thread 13 to match with external screw thread 2, so the Two nuts 6 can be fastened on the outside of the first nut 1, while the inside of the second nut 6 is additionally provided with the second internal screw thread 8, in second The structure of screw thread 8 is identical as 4 structure of the first internal screw thread, it is possible to the effect of secondary locking, the second antislip ring 9 are played to bolt Also it secondary can increase and the frictional force of bolt, sealing ring 3 can also lock bolt, anti-theft screw cap 10 is smooth structure, institute Can not be turned by general spanner, it is necessary to carry out turning absent-mindedness from special-shaped inside groove 11 by the tool to match, have Effect has reached antitheft purpose.

It is obvious to a person skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and And without departing substantially from the spirit or essential attributes of the utility model, it can realize that this is practical new in other specific forms Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this is practical new The range of type is indicated by the appended claims rather than the foregoing description, it is intended that containing for the equivalent requirements of the claims will be fallen in All changes in justice and range are embraced therein.It should not treat any reference in the claims as limiting Related claim.

Claims (6)

1. a kind of metal screws cap anti-loose structure, including the first nut (1), it is characterised in that: outside first nut (1) Side is provided with external screw thread (2), and the bottom end of the first nut (1) is provided with sealing ring (3), is set on the inside of first nut (1) It is equipped with the first internal screw thread (4), and the end of the first internal screw thread (4) is connected with the first antislip ring (5), the first nut (1) spiral shell Line is connected with the second nut (6), and the second nut (6) is internally provided with clamping ring (7), and the inside of the clamping ring (7) sets It is equipped with the second internal screw thread (8), and the end of the second internal screw thread (8) is connected with the second antislip ring (9), second nut (6) Top is connected with anti-theft screw cap (10), and the top of anti-theft screw cap (10) is provided with inside groove (11), the inside of the inside groove (11) It is provided with connecting column (12).

2. a kind of metal screws cap anti-loose structure according to claim 1, it is characterised in that: the sealing ring (3) with First nut (1) is fixedly connected, and the cross section of sealing ring (3) is circular ring structure, and the sealing ring (3) is rubber material.

3. a kind of metal screws cap anti-loose structure according to claim 1, it is characterised in that: second nut (6) Be internally provided with third internal screw thread (13), and third internal screw thread (13) is located at the outside of clamping ring (7), the third internal screw thread (13) match with external screw thread (2).

4. a kind of metal screws cap anti-loose structure according to claim 1, it is characterised in that: first internal screw thread (4) identical with the second internal screw thread (8) structure, first antislip ring (5) is identical with the second antislip ring (9) structure, and first is anti- Slipping ring (5) and the second antislip ring (9) are all rubber material.

5. a kind of metal screws cap anti-loose structure according to claim 1, it is characterised in that: the anti-theft screw cap (10) It is fixedly connected with the second nut (6), and the top end opening diameter of anti-theft screw cap (10) is less than its bottom end opening diameter.

6. a kind of metal screws cap anti-loose structure according to claim 1, it is characterised in that metal screws cap is anti-loose Structure: the inside groove (11) is five corner structure of arc, and the connecting column (12) is fixedly connected with anti-theft screw cap (10).