CN2575355Y

CN2575355Y - Special shape fastening external members and spanner thereof

Info

Publication number: CN2575355Y
Application number: CN 02252797
Authority: CN
Inventors: 张忠志
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-04-24
Filing date: 2002-09-09
Publication date: 2003-09-24
Anticipated expiration: 2012-09-09

Abstract

The utility model discloses an energy saving type expansion bolt of modification PVC manufacture. The utility model is composed of two parts, a screw bolt body ans an inner expansion tube, wherein, the inner expansion tube is gradually sheathed in the root of an expansion wedge (3) under the function of external force. Thereby, an expansion tube is expanded and is extended towards circumference simultaneously, the expansion end of the screw bolt body is caused to be expanded, the effect of dual tube expansion can be reached, and the whole of the screw bolt is fixed on a wall and a warming plate is fixed. The utility model can replace metal fittings, and the utility model has the characteristics of energy saving, corrosion prevention, durability, high intensity, good elasticity and convenient use.

Description

Energy-saving EXPANSION ANCHOR BOLTS

Affiliated technical field

The utility model relates to a kind of building energy conservation accessory of fixedly warming plate.Especially can be fixed on the energy-saving EXPANSION ANCHOR BOLTS of cladding panel on the building outer wall to warming plate.

Background technique

At present, widely popularize the application energy-saving building technology both at home and abroad, key is the building exterior wall heat preserving technology, known existing three kinds: interior insulation, middle insulation and outer insulation.Its China and foreign countries' heat insulation effect the best, but compare with preceding two kinds, factor such as with high content of technology, difficulty is big, cost is high, material and make application surface very narrow.And the work of national requirements building energy conservation must be quickened one's step, and goes into overdrive, and northern area is energy-conservation wants strictness to carry out the JGJ26-95 standard, and for this reason, outer heat preservation technology is imperative.Some developed countries of foreign country use bonding outer heat preservation technology, domesticly also bring into use, and take place but also begun to occur the situation that part outer wall surface crack, partial insulation plate come off.According to the data introduction, World Economics developed country adopts the technology that sticks combination again.In recent years, the domestic outer heat preservation technology of Metal fittings such as expansible anchor of metal enforcement external wall cladding panel that also comes into effect and select for use diameter 6mm reinforcing bar or diameter 10mm.But there are problems such as energy consumption is big, seriously corroded, poor durability.

Summary of the invention

This is suitable for novel purpose and provides a kind of intensity height, the energy-saving EXPANSION ANCHOR BOLTS of thermal conductivity modified PVC little, good endurance, replaces Metal fittings with this.

For achieving the above object, this suitable novel energy-saving EXPANSION ANCHOR BOLTS comprises key and interior expand tube two-part composition.

Adopt said structure, the body of bolt (1) connects hollow tube by back-up ring (5), and the other end is the middle dilation of establishing expansion joint (E.J.) (6), partly is connected with expansion tube at the bottom of the round nose.Bottom portion establishes the screwed bloated wedge of a frustoconic shape (3), and the outside of inflating end is threaded (4).Interior expand tube (2) one ends are closed, and the other end is the middle opening that expansion joint (E.J.) (7) are arranged.

The beneficial effects of the utility model: energy-conservation, its thermal conductivity is one of two percentages of metal, and intensity height, good springiness, in light weight, acid resistant alkali, humidity, weatherability, service life length, easy construction, the Metal fittings that all are better than such as simple to operate.

Description of drawings

Below in conjunction with drawings and Examples the utility model is described in further detail.

Fig. 1 is the vertical planing surface figure of first embodiment of the energy-saving EXPANSION ANCHOR BOLTS of the utility model.

Fig. 2 is the vertical planing surface figure of second embodiment's key of energy-saving EXPANSION ANCHOR BOLTS.

Fig. 3 is the vertical planing surface figure of the interior expand tube of energy-saving EXPANSION ANCHOR BOLTS

1 body of bolt among the figure, 2 interior expand tubes, 3 bloated wedges, 4 screw threads, 5 ring washers, 6 key expansion joint (E.J.)s, 7 interior expand tube expansion joint (E.J.)s.

Embodiment

In Fig. 1, EXPANSION ANCHOR BOLTS (1) one end is that ring washer (5) connects hollow tube, and its rear end is the middle inflating end of establishing expansion joint (E.J.) (6), is connected with the bottom part again, and its bottom is provided with the bloated wedge (3) of threaded round platform.Interior expand tube (2) key mouth of pipe from ring washer inserts, wherein opening end is enclosed within the top of bloated wedge (3), when when closed end applies external force, expand tube prolongs expansion joint (E.J.) and opens and advance to stretch to the bottom in being made by the effect of the wedge that expands, squeeze the key that expands simultaneously, reach the effect of two-tube expansion, with EXPANSION ANCHOR BOLTS fixedly in the body of wall hole.

Claims

1. energy-saving EXPANSION ANCHOR BOLTS, comprise key (1) and interior expand tube (2), it is characterized in that: the back-up ring of key (5) connects hollow tube, its rear end is an inflating end, the outside is provided with screw thread (4), and this part establishes an expansion joint (E.J.) (6) along axial direction in the centre, and its bottom portion is connected with the part of inflating end, disconnect with another part, be connected with screwed bloated wedge (3) in the bottom.

2. energy-saving EXPANSION ANCHOR BOLTS according to claim 1 is characterized in that: the key bottom is provided with the bloated wedge (3) of screwed frustoconic shape in pipe.

3. energy-saving EXPANSION ANCHOR BOLTS according to claim 1, interior expand tube (2) are that an end is closed, and the part of pipe is established an expansion joint (E.J.) (7) along the medial axis direction, will manage five equilibrium.

4. according to any one described energy-saving EXPANSION ANCHOR BOLTS in the claim 1 to 3, its key (1) and interior expand tube (2) form by modified PVC injection molding.