CN2589718Y

CN2589718Y - Expansion screw

Info

Publication number: CN2589718Y
Application number: CN 02279523
Authority: CN
Inventors: 焦正林
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-10-11
Filing date: 2002-10-11
Publication date: 2003-12-03
Anticipated expiration: 2012-10-11

Abstract

The utility model relates to an expansion screw which belongs to the technical field of expansion screws. The utility model mainly solves the problem that the existing expansion screws are difficult to take out from the wall bodies or nail into the wall bodies once the expansion screws are fixed into the wall bodies. The utility model is characterized in that the utility model is composed of a screw rod and a nut which are matched with each other, an expansion pipe sheathed on the screw rod, a washer and a spring washer, wherein the washer and the expansion pipe are connected into integration. The utility model has the characteristics that the utility model can be taken out from wall bodies conveniently and can be used repeatedly. The utility model can be widely used for various expansion screws.

Description

A kind of swell fixture

Technical field

The utility model relates to a kind of swell fixture, particularly a kind of swell fixture that can split out from body of wall, reusable.Belong to the swell fixture technical field.

Background technique

Existing swell fixture generally comprises two kinds.A kind of is to be that bolt, the nut of taper, expansion tube, packing ring and the spring washer that is sleeved on the bolt constitute by afterbody, at present domestic generally employing: another kind is by bolt, outside for the tapered cup nut that cooperates with expansion tube, expansion tube, packing ring and the spring washer that is sleeved on the bolt constitute, and abroad generally adopts at present.The deficiency of these two kinds of swell fixtures is that expansion tube is two parts that separate with packing ring, when using swell fixture fixed protection net, air conditioner fixing frame etc., in case when finding to be fixed on the swell fixture malposition in the body of wall, want to take out it or it is pounded in the body of wall all very difficult, also influence the further installation of protective net, air conditioner fixing frame etc. sometimes.In addition, the swell fixture of taking-up all can not continue to have used again, can only disposablely use, and causes waste.

Summary of the invention

The purpose of this utility model is exactly that a kind of swell fixture that can easily the swell fixture that is fixed in the body of wall be taken out and can continue to use is provided at above-mentioned deficiency.

Technical solution of the present utility model is: a kind of swell fixture, and bolt, nut by cooperating are sleeved on the expansion tube on the bolt, packing ring, spring washer constitutes, and it is characterized in that: described packing ring is to connect all-in-one-piece with expansion tube.

Bolt described in the utility model technical solution can be that afterbody is the bolt of taper; Expansion tube and packing ring are the overall structures that once is stamped to form.

The outside of the nut described in the utility model technical solution can be the taper that cooperates with expansion tube; Expansion tube and packing ring are the overall structures that is welded.

The utility model is owing to the expansion tube with swell fixture is fixedly connected into an integral body with packing ring, after being fixed on swell fixture in the body of wall, when finding the malposition of this swell fixture again, only need loose several lower nuts or bolt, it is several down to move bolt inwards gently with hammer then, outwards spurs the brandreth of being fixed, just can be like a cork with the whole taking-up of swell fixture within the walls, the swell fixture that takes out can be not destroyed, can continue to use and reuse.The utility model has overcome the deficiencies in the prior art part, has conveniently to take out and reusable characteristics in body of wall, thereby has reached the purpose of this utility model.The utility model can be widely used in various swell fixtures.

Description of drawings

Fig. 1 is the utility model embodiment 1 a structural representation;

Fig. 2 is the utility model embodiment 2 a structural representation.

Concrete practical way

Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail.

Embodiment 1 as shown in Figure 1.Swell fixture is made of bolt 1, nut 2, the expansion tube 5 that is sleeved on belt washer 4 on the bolt 1 and spring washer 3.Wherein, bolt 1, nut 2 and spring washer 3 are identical with the at present domestic swell fixture that generally adopts, and different only is that expansion tube 5 is connected into integral body with packing ring 4, once is stamped to form.The afterbody of bolt 1 is taper, matches with the end of expansion tube 5 band expansion joint (E.J.)s 6.

Embodiment 2 as shown in Figure 2.Swell fixture is made of bolt 7, nut 12, the expansion tube 10 that is sleeved on belt washer 9 on the bolt 7 and spring washer 8.Wherein, bolt 7, nut 12 and spring washer 8 are with the external swell fixture that generally adopts is identical at present, and different only is that expansion tube 10 is connected into integral body with packing ring 9, and spot welding forms.Also can once be stamped to form.The outside of nut 12 is taper, matches with the end of expansion tube 10 band expansion joint (E.J.)s 11.

Claims

1, a kind of swell fixture, bolt (1,7), nut (2,12) by cooperating are sleeved on the expansion tube (5,10) on the bolt (1,7), packing ring (4,9), spring washer (3,8) constitutes, and it is characterized in that: described packing ring (4,9) is to connect all-in-one-piece with expansion tube (5,10).

2, a kind of swell fixture according to claim 1 is characterized in that: described bolt (1) is that afterbody is the bolt of taper; Expansion tube (5) and packing ring (4) are the overall structures that once is stamped to form.

3, a kind of swell fixture according to claim 1 is characterized in that: the taper of the outside of described nut (12) for cooperating with expansion tube (10); Expansion tube (10) and packing ring (8) are the overall structures that is welded.