CN209800477U

CN209800477U - Novel expansion bolt

Info

Publication number: CN209800477U
Application number: CN201920411411.8U
Authority: CN
Inventors: 高攀
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-03-28
Filing date: 2019-03-28
Publication date: 2019-12-17
Anticipated expiration: 2029-03-28

Abstract

The embodiment of the utility model discloses a novel expansion bolt, which comprises a bolt, an expansion sleeve and an expansion nut matched with the bolt, wherein the expansion sleeve is sleeved on a screw rod of the bolt, and an expansion end of the expansion sleeve is far away from the head of the bolt; the expansion end of the expansion sleeve is provided with a notch, the periphery of the expansion nut is provided with a tip part matched with the notch, and the expansion nut is clamped into the notch under the action of a bolt, so that the expansion end of the expansion sleeve expands. According to the novel expansion bolt provided by the embodiment of the utility model, the tip part is arranged on the peripheral side of the expansion nut and is matched with the notch of the expansion sleeve, so that the expansion bolt is more firmly fixed; one end of the expansion sleeve is in contact with the head, so that the screw is prevented from rusting; the head of the bolt is fixed with the screw, so that the bolt can be screwed in and out conveniently, and the expansion bolt can be mounted and dismounted conveniently.

Description

novel expansion bolt

Technical Field

the embodiment of the utility model provides a relate to bolt technical field, concretely relates to novel expansion bolts.

Background

at present, in equipment installation engineering, expansion bolts are often used, and in the use of the traditional expansion bolts, after the equipment is fixed on a wall or the ground through the expansion bolts, along with the prolonging of the service life of the equipment, the screws of the expansion bolts rotate in the sleeves, so that the fixing parts of the expansion bolts are stable; in addition, traditional bolt is at the in-process that uses, exposes between the nut in the outside and the bolt screw rod, leads to nut and screw rod to rust easily, leads to dismantling inconvenient, and reuse rate is lower, and fixed fastness is poor.

SUMMERY OF THE UTILITY MODEL

therefore, the embodiment of the utility model provides a novel expansion bolt to solve among the prior art because expansion bolt fixity fastness is poor, dismantle inconvenient problem.

In order to achieve the above object, the embodiment of the present invention provides the following technical solutions:

the novel expansion bolt comprises a bolt, an expansion sleeve and an expansion nut matched with the bolt, wherein the expansion sleeve is sleeved on a screw rod of the bolt, and an expansion end of the expansion sleeve is far away from the head of the bolt;

The expansion end of the expansion sleeve is provided with a notch, the periphery of the expansion nut is provided with a tip part matched with the notch, and the expansion nut is clamped into the notch under the action of a bolt, so that the expansion end of the expansion sleeve expands.

preferably, the number of the gaps arranged at the expansion end of the expansion sleeve is at least 1, and correspondingly, the number of the tips is at least 1.

Preferably, the expansion nut is in a truncated cone shape, so that the nut can conveniently enter the expansion end of the expansion sleeve under the action of the bolt, and the expansion sleeve is expanded under the matching of the tip end and the notch.

Preferably, the diameter of the end of the expansion nut near the expansion end is smaller than the diameter of the expansion end.

Preferably, a spring washer is sleeved between the head of the bolt and the expansion sleeve.

preferably, a flat washer is sleeved between the spring washer and the sleeve.

preferably, the head of the bolt is a hexagonal head, a round head, a square head or a countersunk head.

Preferably, the head of the bolt and the screw are of an integral structure or the head is rotationally connected with the screw.

The embodiment of the utility model provides a have following advantage:

According to the novel expansion bolt provided by the embodiment of the utility model, the tip part is arranged on the peripheral side of the expansion nut and is matched with the notch of the expansion sleeve, so that the expansion bolt is more firmly fixed; one end of the expansion sleeve is in contact with the head, so that the screw is prevented from rusting; the head of the bolt is fixed with the screw, so that the bolt can be screwed in and out conveniently, and the expansion bolt can be mounted and dismounted conveniently.

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 should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.

The structure, ratio, size and the like shown in the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention has no technical essential significance, and any structure modification, ratio relationship change or size adjustment should still fall within the scope which can be covered by the technical content disclosed by the present invention without affecting the efficacy and the achievable purpose of the present invention.

fig. 1 is a schematic side view of a novel expansion bolt provided by an embodiment of the present invention;

Fig. 2 is an exploded view of the novel expansion bolt provided by the embodiment of the invention;

Fig. 3 is a schematic structural diagram of an expansion nut according to an embodiment of the present invention;

Fig. 4 is a schematic structural view of the expansion sleeve and the expansion nut according to the embodiment of the present invention;

Fig. 5 is a schematic view of a use state of the novel expansion bolt provided by the embodiment of the invention;

in the figure: 100-bolt; 110-a head; 120-screw rod; 200-expanding the casing; 210-an expansion end; 220-notch; 300-expansion nut; 310-tip portion.

Detailed Description

The present invention is described in terms of specific embodiments, and other advantages and benefits of the present invention will become apparent to those skilled in the art from the following disclosure. 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 and 2, the embodiment of the present invention provides a novel expansion bolt, which includes a bolt 100, an expansion sleeve 200 and an expansion nut 300 engaged with the bolt 100, wherein the expansion sleeve 200 is sleeved on a threaded rod 120 of the bolt 100, and an expansion end 210 of the expansion sleeve 200 is far away from a head 110 of the bolt 100; the expansion end 210 of expansion sleeve 200 is equipped with breach 220, be equipped with tip portion 310 with breach 220 complex on the week side of expansion nut 300, tip portion 310 is the wedge, its most advanced point is to the breach 220 department of expansion end 210 of expansion sleeve 200, expansion nut 300 is under the effect of bolt 100, make tip portion 310 block in breach 220, make expansion sleeve 200's expansion end 210 inflation, thereby firmly be fixed in the wall with expansion bolt 100, simultaneously, tip portion and breach cooperation, it is more firm to make the relative rotation fixed not take place between expansion nut and the expansion sleeve.

As shown in fig. 3 and 4, the number of indentations 220 provided at the expansion end 210 of the expansion sleeve 200 is at least 1, and correspondingly, the number of tip portions 310 is at least 1. When the expansion bolt 100 is pierced into the wall, the tip portion 310 of the notch 220 of the expansion nut 200 needs to be aligned first, which is beneficial for the tip portion 310 to enter the notch 220, so that the expansion end 210 expands, and the arrangement of the tip portion 310 increases the stability and firmness of the combination of the expansion nut 300 and the expansion nut 200.

As shown in fig. 5, the expansion nut 300 is truncated so that the nut can enter the expansion end 210 of the expansion shell 200 under the action of the bolt 100, and the expansion shell 200 can expand under the engagement of the tip 310 and the notch 220. The diameter of the expansion nut 300 at the end close to the expansion end 210 of the expansion casing 200 is smaller than that of the expansion end 210, so that the expansion nut 300 can enter the expansion end 210 of the expansion casing 200, and as the expansion nut 300 enters the depth of the expansion casing 200, the expansion casing 200 will expand more and more, and the combination between the expansion bolt 100 and the wall body is firmer. In addition, the end of the expansion sleeve away from the expansion end 210 directly contacts the head 110, which can effectively prevent the screw at the head from rusting.

a spring washer (not shown) is sleeved between the head 110 of the bolt 100 and the expansion sleeve 200, and a flat washer (not shown) is arranged between the spring washer and the sleeve. During the tightening of the rotation of bolt 100, the coupling between head 110 of bolt 100 and expansion sleeve 200 is made tighter.

Preferably, head 110 of bolt 100 is a hex head, round head, square head or countersunk head, and the shape of head 110 of bolt 100 is selected to correspond to the shape of head 110 of the particular installation device.

The head 110 of the bolt 100 and the screw rod 120 are of an integral structure, so that the expansion bolt is conveniently recycled, and the bolt is screwed out of the preset hole by rotating the head of the expansion bolt, so that the bolt can be recycled.

In the use process of the novel expansion bolt 100 of the embodiment of the present invention, firstly, the expansion bolt 100 is prepared, the expansion sleeve 200 is sleeved on the screw rod 120 of the bolt 100, and the expansion nut 300 is screwed to the end of the screw rod 120; then, a through hole of the device to be fixed is drilled with a preset hole aligned with the ground or the wall, an expansion bolt is inserted into the preset hole, then, the bolt 100 is rotated, under the rotation action of the bolt 100, the expansion nut 300 is close to the expansion end 210 of the expansion casing 200, the tip 310 is inserted into the notch 220 of the expansion end 210, under the matching of the tip 310 and the notch 220 of the expansion end 210, the expansion end 210 is expanded, the tip 310 and the notch 220 are matched, relative rotation between the screw rod 120 of the bolt 100 and the expansion casing 200 is prevented, and finally, the expansion bolt is stably fixed in the preset hole. When the expansion sleeve is disassembled, the bolt is screwed out, and the expansion sleeve and the expansion nut are taken out, so that the expansion sleeve and the expansion nut can be repeatedly used.

although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made based on the invention. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.

Claims

1. The novel expansion bolt is characterized by comprising a bolt, an expansion sleeve and an expansion nut matched with the bolt, wherein the expansion sleeve is sleeved on a screw rod of the bolt, and an expansion end of the expansion sleeve is far away from the head of the bolt;

2. The new expansion bolt as claimed in claim 1,

the number of the gaps arranged at the expansion end of the expansion sleeve is at least 1, and correspondingly, the number of the tip parts is at least 1.

3. The new expansion bolt as claimed in claim 1,

The expansion nut is in a round table shape, so that the nut can conveniently enter the expansion end of the expansion sleeve under the action of the bolt, and the expansion sleeve is expanded under the matching of the tip end and the notch.

4. The new expansion bolt as claimed in claim 3,

the diameter of one end of the expansion nut close to the expansion end is smaller than that of the expansion end.

5. The new expansion bolt as claimed in claim 1,

And a spring washer is sleeved between the head of the bolt and the expansion sleeve.

6. the new expansion bolt as claimed in claim 5,

And a flat washer is sleeved between the spring washer and the sleeve.

7. The new expansion bolt as claimed in claim 1,

The head of the bolt is a hexagonal head, a round head, a square head or a countersunk head.

8. The new expansion bolt as claimed in claim 1,

The head of the bolt and the screw rod are of an integral structure.