CN201125910Y

CN201125910Y - Novel expanding screw bolts

Info

Publication number: CN201125910Y
Application number: CNU2007201823285U
Authority: CN
Inventors: 蓝子宝
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-10-12
Filing date: 2007-10-12
Publication date: 2008-10-01
Anticipated expiration: 2017-10-12

Abstract

The utility model relates to a novel expanding screw bolt which is composed of a screw bolt, a conical nut, a card groove, an expansion pipe, a hook, an opening strip, a flat washer and a spring washer. The conical nut is two segments of multiple-edge frustum. The expansion tube is the corresponding multiple internal edges. As the utility model is a reverse installed screw bolt, a hexagonal screw cap is exposed on the wall or the ground when the fixed object is fixed. The utility model settles the problem that the exposed part of the expansion bolt is long and the external appearance and safety are affected. Especially the screw bolt is taken out when the expansion bolt is detached, the nut and expansion tube remain in the building, and only a hole can be seen on the wall or ground. The screw bolt settles the problem that the screw bolt is hard to take out when the expanding screw bolt is detached originally. The size and kind of the screw bolt can be selected according to requirement. The expanding screw bolt is used for various buildings and fixed objects on ground. The expanding screw bolt has the advantages of simple producing technique, saved cost, economy, practicability, more safety and convenient use.

Description

A kind of novel setscrew

Technical field:

The utility model and a kind of novel setscrew particularly relate to a kind of improvement to former setscrew.

Background technique:

In our daily life, setscrew is used very extensive, brings great convenience for people's work and life.The setscrew that present people use always also has its not enough here, and on wall or the ground or on the ground of public place, bolt has long screw rod to expose the outside to EXPANSION ANCHOR BOLTS, looks very not attractive in appearance, and is also very dangerous fixation.After particularly fixation was removed, EXPANSION ANCHOR BOLTS was not easy to take out very much, as taking out EXPANSION ANCHOR BOLTS by force, will destroy the surface of buildings such as ground or wall.After removing fixture, EXPANSION ANCHOR BOLTS is stayed among the building, and is also long when the setscrew of this moment is exposed when working than it, to the potential danger of pedestrian.The tapered cup nut setscrew of prior art, complex manufacturing has special processing request to expansion tube and tapered cup nut, and its manufacture cost is than higher.

Summary of the invention:

The technical problems to be solved in the utility model is to overcome the deficiency that prior art exists, and only sees hexagon nut after providing a kind of fixation to be fixed on wall or the ground, and removing this that show on back wall or the ground has a kind of novel setscrew in a hole.

The utility model is achieved by following technical proposals: a kind of novel setscrew of the present utility model, form by screw rod, tapered cup nut, draw-in groove, expansion tube, grab, the rectangular seam of opening, plain washer and spring washer; Described tapered cup nut is the truncate cone of rib more than two sections, and expansion tube is corresponding interior many ribs.

Described expansion tube is that UPVC or the disposable injection moulding of other plastics are made.

Described expansion tube lower end is provided with at least 1 rectangular seam of opening.

Described expansion tube lower end inwardly is provided with grab.

Described tapered cup nut is provided with draw-in groove.

Described tapered cup nut can also be circular even other shape, all right corresponding interior circular even other shape of expansion tube, and the wall thickness of expansion tube is selected between 0.5-2mm according to the size of bolt.

A kind of novel setscrew of the present utility model compared with prior art has following beneficial effect: because the utility model is reverse construction bolt, only see six square nuts on fixation fixing back wall or the ground, solved the setscrew bar expose longer, unsafe again problem neither attractive in appearance; What take out after particularly EXPANSION ANCHOR BOLTS is removed is screw rod, and what stay in the building is nut and expansion tube, and what show on wall or the ground is a hole, has solved former setscrew and has removed the problem that the back screw rod is difficult to taking-up; The size and the kind of bolt be can select as required, all kinds of buildings and ground fixture body are used for.The utility model production technology is simple, saves cost, and is economical and practical, practical safer, easy to use.

Description of drawings:

Fig. 1 is a form structure schematic representation of the present utility model;

Fig. 2 is a package assembly schematic representation of the present utility model.

Wherein: 1, screw rod, 2, tapered cup nut, 3, draw-in groove, 4, expansion tube, 5, grab, 6, the rectangular seam of opening, 7, plain washer, 8, spring washer.

Embodiment:

The utility model is described in further detail below in conjunction with drawings and Examples.Referring to Fig. 1, shown in Figure 2, a kind of novel setscrew of the present utility model, form by screw rod 1, tapered cup nut 2, draw-in groove 3, expansion tube 4, grab 5, the rectangular seam 6 of opening, plain washer 7, spring washer 8, described tapered cup nut 2 is the truncate cone of rib more than two sections, and expansion tube 4 is corresponding interior many ribs; Expansion tube 4 is made for UPVC or the disposable injection moulding of other plastics; Be provided with the rectangular seam 6 of opening in expansion tube 4 lower ends in order easily to expand, the draw-in groove 3 on the inside grab 5 in expansion tube 4 lower ends and the tapered cup nut 2 is grab mutually, makes in use tapered cup nut 2 can not drop from expansion tube 4 is interior.

During use, at first on buildings such as ground or wall, bore one bigger, slightly be longer than the hole of expansion tube 4, general expansion tube 4 can be put in the hole and be advisable, then grab is had the expansion tube 4 of tapered cup nut 2 put into hole, fixation is positioned on the building surface, the hole of fixation is pierced into screw rod 1 in the expansion tube 4 and is tightened with tapered cup nut 2 with after aliging in the hole of expansion tube 4, reaches fixation and is fixed to purpose on the building.

Claims

1, a kind of novel setscrew, form by screw rod (1), tapered cup nut (2), draw-in groove (3), expansion tube (4), grab (5), the rectangular seam of opening (6), plain washer (7), spring washer (8), it is characterized in that: described tapered cup nut (2) is the truncate cone of rib more than two sections, and expansion tube (4) is corresponding interior many ribs.

2, a kind of novel setscrew according to claim 1, it is characterized in that: described expansion tube (4) is made for UPVC or the disposable injection moulding of other plastics.

3, a kind of novel setscrew according to claim 1 is characterized in that: described expansion tube (4) lower end is provided with at least 1 rectangular seam of opening (6).

4, a kind of novel setscrew according to claim 1 is characterized in that: described expansion tube (4) lower end inwardly is provided with grab (5).

5, a kind of novel setscrew according to claim 1, it is characterized in that: described tapered cup nut (2) is provided with draw-in groove (3).