CN206668694U - A kind of Novel expansion bolt - Google Patents

Abstract

A kind of Novel expansion bolt, including screw rod, expansion sleeve, plain cushion and nut are the utility model is related to, the expansion sleeve is enclosed on outside screw rod, and plain cushion and nut are integrally molded so as flange nut by way of casting；The utility model improves the plain cushion and the self-existent present situation of nut of conventional setscrew, plain cushion and nut is integrally molded so as flange nut, ensure that plain cushion is not easy to be lost, even if losing, because volume and quality increase, workmen is also easier to find；Non-slip texture is provided with the outer surface of the plain cushion of the flange nut, nut can be avoided during tightening, screw rod and the nut transfer of setscrew；Concavity decorative pattern is uniformly provided with the expansion piece outer surface, expansion piece is in expansion process, the design of concavity decorative pattern enhances pulling force and frictional force between setscrew and securing objects, the utility model makes easier for installation to prevent plain cushion from losing, preventing screw rod and nut from skidding and providing favourable guarantee.

Description

A kind of Novel expansion bolt

Technical field

It the utility model is related to hardware connection accessory technical field, and in particular to a kind of Novel expansion bolt.

Background technology

At present, fastening, setscrew are generally fixed using setscrew on the field such as architectural engineering, machining Generally be metallic expansive screw, the fixation of setscrew is to promote expansion to produce friction bond stress using wedge-shaped gradient, Reach fixed effect.Screw rod one is screw thread, and other end is tapered.The outer expansion sleeve of bread one of screw rod, expansion sleeve is close to cone Forming head side is provided with some otch, and setscrew generally also includes plain cushion, and the effect of plain cushion is that the pressure of nut is uniformly distributed In on connected part.In use, expansion sleeve is enclosed on screw rod, and fill in together in the hole accomplished fluently on wall, Ran Houfang Upper plain cushion, split nut, nut pull outward screw rod, and conical head pulled in into expansion sleeve, and expansion sleeve is then tightly solid by spreading Determine on the wall, to be generally used for the fastening on the materials such as cement, brick such as guard rail, canopy, air-conditioning.

But in use, the various parts species in job site are more, quantity is big, job site material is put in a jumble, and And plain cushion small volume on screw rod, light weight, during setscrew is installed, it is easy to the situation of plain cushion loss occurs, Workmen is difficult to find that plain cushion, causes damage；In addition, it is likely to setscrew occur in use in situation about not tightening Under, screw rod and the nut transfer of its setscrew, cause trouble.

Utility model content

In view of this, the purpose of this utility model is overcome the deficiencies in the prior art, there is provided one kind prevents plain cushion from losing And anti-skidding setscrew.

To realize object above, the utility model adopts the following technical scheme that：A kind of Novel expansion bolt, including screw rod, Expansion sleeve, plain cushion and nut, the expansion sleeve are enclosed on outside the screw rod, and one of the screw rod is provided with screw thread, another Head is in coniform, and the plain cushion and nut are integrally molded so as flange nut by way of casting.

Preferably, non-slip texture is provided with the outer surface of the plain cushion of the flange nut.

Preferably, the expansion sleeve includes multiple expansion pieces, and when setscrew is installed, the expansion piece, which is arranged on, to be leaned on The side of the nearly nose cone, slot segmentation is equipped between two adjacent expansion pieces.

Preferably, opening is also included on the expansion sleeve, and one end of the opening connects with the slot segmentation.

Preferably, the opening is shaped as circle, and the quantity of the opening is adapted with the quantity of the slot segmentation.

Preferably, it is uniformly provided with concavity decorative pattern on the expansion piece outer surface.

Preferably, described one screw thread being provided with of screw rod uses M6, M8, M10 or M12 specification.

Preferably, the flange nut is hexagon nut with flange.

The utility model uses above technical scheme, and the plain cushion and nut are integrally molded so as flange by way of casting Nut, the plain cushion and the self-existent present situation of nut of conventional setscrew are improved, the plain cushion and nut are integrally molded so as method Blue nut, it ensure that plain cushion is not easy to be lost, even if losing, because volume and quality increase, workmen can also be easier to find, And the plain cushion and nut are integrally molded so as flange nut, make setscrew easier for installation；In the flange nut The outer surface of plain cushion is provided with non-slip texture, increasing friction force, can avoid nut during tightening, the spiral shell of setscrew Bar and nut transfer；Concavity decorative pattern is uniformly provided with the expansion piece outer surface, the expansion piece is in expansion process, concavity flower The design of line enhances pulling force and frictional force between setscrew and securing objects, ensure that bonding strength；In addition, when described When one screw thread being provided with of screw rod uses M8, M10 or M12 specification, when setscrew assembles, torsion is bigger；The utility model is Prevent plain cushion from losing, prevent screw rod and nut from skidding and providing favourable guarantee, and make easier for installation.

Brief description of the drawings

, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, drawings in the following description are only It is some embodiments of the utility model, for those of ordinary skill in the art, is not paying the premise of creative work Under, other accompanying drawings can also be obtained according to these accompanying drawings.

Fig. 1 is the structural representation of the utility model setscrew.

In figure：1st, screw rod；2nd, expansion sleeve；3rd, plain cushion；4th, nut；5th, flange nut；6th, non-slip texture；7th, expansion piece； 8th, slot segmentation；9th, it is open；10th, concavity decorative pattern.

Embodiment

, below will be to technology of the present utility model to make the purpose of this utility model, technical scheme and advantage clearer Scheme is described in detail.Obviously, described embodiment is only the utility model part of the embodiment, rather than all Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not before creative work is made Resulting all other embodiment is put, belongs to the scope that the utility model is protected.

As shown in figure 1, the utility model provides a kind of Novel expansion bolt, including screw rod 1, expansion sleeve 2, the and of plain cushion 3 Nut 4, the expansion sleeve 2 are enclosed on the outside of the screw rod 1, and one of the screw rod 1 is provided with screw thread, other end be in it is coniform, The plain cushion 3 and nut 4 are integrally molded so as flange nut 5 by way of casting.

Further, non-slip texture 6 is provided with the outer surface of the plain cushion 3 of the flange nut 5.

It should be added that the expansion sleeve 2 includes multiple expansion pieces 7, it is described swollen when setscrew is installed Swollen 7 side for being positioned close to the nose cone, slot segmentation 8 is equipped between two adjacent expansion pieces 7.

Specifically, opening 9 is also included on the expansion sleeve 2, and one end of the opening 9 connects with the slot segmentation 8.

Preferably, the opening 9 is shaped as circle, and the quantity and the quantity of the slot segmentation 8 of the opening 9 mutually fits Match somebody with somebody.

Need further to remark additionally, concavity decorative pattern 10 is uniformly provided with the outer surface of expansion piece 7.

In addition, described 1 one screw threads being provided with of screw rod use M6, M8, M10 or M12 specification, the flange nut 5 is six Angle flange face nut.

As a preferred embodiment, the utility model provides a kind of Novel expansion bolt, including screw rod 1, expansion Sleeve pipe 2, plain cushion 3 and nut 4, one of the screw rod 1 are provided with screw thread, and other end is in coniform, and the expansion sleeve 2 is enclosed on institute The outside of screw rod 1 is stated, the plain cushion 3 and nut 4 are integrally molded so as flange nut 5 by way of casting, in the flange nut 5 The outer surface of plain cushion 3 be provided with non-slip texture 6, the nut 4 is hex nut；The expansion sleeve 2 includes three expansions Piece 7, when setscrew is installed, the expansion piece 7 is positioned close to the side of the nose cone, two adjacent expansions Slot segmentation 8 is equipped between piece 7；Also include three openings 9, and one end of the opening 9 and described point on the expansion sleeve 2 Cut groove 8 to connect, the opening 9 is shaped as circle；Concavity decorative pattern is uniformly provided with the outer surface of expansion piece 7.

In use, setscrew is put into the hole accomplished fluently, with the nose cone of spanner turn screw rod 1, flange Nut 5 is gradually moving in the case that screw thread constantly screws into expansion sleeve 2, the outer surface of the plain cushion 3 of the flange nut 5 Non-slip texture 6 is provided with, flange nut 5 can be avoided during tightening, screw rod 1 and the transfer of nut 4 of setscrew；With The continuous rotation of screw rod 1, the continuous extrusion expansion sleeve pipe 2 of flange nut 5 flexes outward expansion piece 7, on the outer surface of expansion piece 7 Concavity decorative pattern is uniformly provided with, for expansion piece 7 in expansion process, concavity decorative pattern enhances the drawing between setscrew and securing objects Power and frictional force, improve the use intensity of setscrew.

To sum up, the plain cushion 3 on Novel expansion bolt and nut 4 are integrally molded so as flange nut by way of casting 5, the 4 self-existent present situation of plain cushion 3 and nut of conventional setscrew is improved, the plain cushion 3 and nut 4 are integrally molded so as method Blue nut 5, it ensure that plain cushion 3 is not easy to be lost, even if losing, because volume and quality increase, workmen can also be easier to look for Arrive, and the plain cushion 3 and nut 4 are integrally molded so as flange nut 5, make setscrew easier for installation；In the flange The outer surface of the plain cushion 3 of nut 5 is provided with non-slip texture 6, increasing friction force, can avoid nut 4 during tightening, swollen The screw rod 1 of swollen screw and the transfer of nut 4；Concavity decorative pattern 10 is uniformly provided with the outer surface of expansion piece 7, the expansion piece 7 exists In expansion process, the design of concavity decorative pattern 10 enhances pulling force and frictional force between setscrew and securing objects, ensure that Bonding strength；The utility model makes to prevent plain cushion 3 from losing, preventing screw rod 1 skids with nut 4 from providing favourable guarantee It is easier for installation.

It is described above, only specific embodiment of the present utility model, but the scope of protection of the utility model is not limited to In this, any one skilled in the art can readily occur in change in the technical scope that the utility model discloses Or replace, it should all cover within the scope of protection of the utility model.Therefore, the scope of protection of the utility model should be with the power The protection domain that profit requires is defined.

Claims (10)

1. a kind of Novel expansion bolt, including screw rod, expansion sleeve, plain cushion and nut, the expansion sleeve are enclosed on the screw rod Outside, it is characterised in that one of the screw rod is provided with screw thread, and other end is in coniform, and the plain cushion and nut pass through casting Mode be integrally molded so as flange nut.

2. Novel expansion bolt according to claim 1, it is characterised in that in the outer surface of the plain cushion of the flange nut It is provided with non-slip texture.

3. Novel expansion bolt according to claim 2, it is characterised in that the expansion sleeve includes multiple expansion pieces.

4. Novel expansion bolt according to claim 3, it is characterised in that be all provided between two adjacent expansion pieces There is slot segmentation.

5. Novel expansion bolt according to claim 4, it is characterised in that also include opening on the expansion sleeve, and One end of the opening connects with the slot segmentation.

6. Novel expansion bolt according to claim 5, it is characterised in that the quantity of the opening and the slot segmentation Quantity is adapted.

7. Novel expansion bolt according to claim 6, it is characterised in that the opening is shaped as circle.

8. according to the Novel expansion bolt described in any one of claim 1 to 7, it is characterised in that on the expansion piece outer surface It is uniformly provided with concavity decorative pattern.

9. according to the Novel expansion bolt described in any one of claim 1 to 7, it is characterised in that what the screw rod one was provided with Screw thread uses M6, M8, M10 or M12 specification.

10. according to the Novel expansion bolt described in any one of claim 1 to 7, it is characterised in that the flange nut is hexagonal Flange surface nut.