CN2651342Y

CN2651342Y - Plastic cards

Info

Publication number: CN2651342Y
Application number: CN 03201680
Authority: CN
Inventors: 唐善祥
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-01-17
Filing date: 2003-01-17
Publication date: 2004-10-27
Anticipated expiration: 2013-01-17

Abstract

The utility model relates to a plastic card for construction work, which can substitute cement mortar protective layer pads that are used in prior reinforced concrete work. The utility model is made through injection molding with plastics or composite material, or made of metal materials. The plastic card has advantages of low cost, large bearing capacity, simple, quick and reliable fabrication and installation. The thickness of the protective layer can completely meet design requirements, so as to guarantee service life and structure safety of the reinforced concrete.

Description

Plastic clip

Affiliated technical field

The utility model relates to employed plastic clip in the building engineering field.

Background technology

In the prior art, be with prefabricated cement mortar cushion block for a long time, fill up between reinforcing bar and template, and then build concrete.Do not exposed and corrosion after making reinforcing bar by the concrete parcel.In reality, the unit in charge of construction that often has follows the line of least resistance economical, picks up some broken (ovum) stones or the random choker block of aggregate chips, and the protective layer thickness of Xing Chenging does not reach the thickness of design code therefrom.As everyone knows, using the shortcoming of mortar cushion block is to need prefabricated long curing time.And when the mortar cushion block is installed, need with manually using pre-buried bundle silk colligation one by one on reinforcing bar, time-consuming.Chang Yin builds concrete and wipes to sop up liquid when smashing concrete, and the mortar cushion block is moved, misplaces, drops or crushes.Like this, the protective layer thickness of design drawing regulation can not get guaranteeing that the serious quality accident that muscle also occurs revealing is if its consequence of untimely processing is very serious.Reinforcing bar exposes corrosion makes the concrete structural deterioration, does not reach rated wear.When protective layer thickness was blocked up, the bearing capacity of its concrete works can reduce, and had reduced the reliability of engineering.

Summary of the invention

The purpose of this utility model provides a kind of plastic clip, substitutes existing prefabricated cement mortar cushion block, overcomes the shortcoming of prior art, makes topping reach the thickness of design code fully.

The technical scheme that its technical problem that solves the utility model adopts is: be to make top with plastics, composite material, metal material unsealed circular, and the plastic clip that the bottom has the pin of support to link to each other.During use, annulus is stuck on the main muscle, and by the feet load-bearing, pin can be made unipods, and its bearing capacity is less, is mainly used on the side form of reinforced concrete beam, plate, post.When bearing capacity is big, available two pin.Two pin can be made parallel shape, also can be " eight " word shapes, look the bearing capacity size, and in two pin, the bottom can establish a lateral tie and connect, bearing capacity hour can not established lateral tie.Two pin plastic clips are usually used on concrete beam, post, the plate bed die.The plastics of injection mo(u)lding are optional, and its cost of production is low with engineering plastics (ABS) polyethylene, polypropylene, composite material etc., and technology is simple, makes of metal material processing that then cost is higher.

The beneficial effects of the utility model are:

One, making is simple, quick.Can produce in a large number in factory, overcome prior art home built shortcoming at the construction field (site).

Two, installation is simple, reliable.Only need during installation plastic clip directly is stuck on the reinforcing bar, promptly be fixed on the reinforcing bar firmly.Pin is bearing on the template, and the height of pin is the protective layer thickness that needs, and its size is very accurate.Its service speed is fixedly compared fast several times with the colligation of mortar cushion block.

Three, cost is low, each plastic clip is lower more than 40% than mortar cushion block cost.

The utility model is described in further detail below in conjunction with drawings and Examples

Description of drawings

Fig. 1 is the plastic clip elevation.

Fig. 2 is the A-A sectional drawing of Fig. 1

Fig. 3 is " eight " word pin plastic clip elevation

Fig. 4 is the A-A sectional drawing of Fig. 3

Fig. 5 is the plastic clip elevation of no lateral tie

Fig. 6 is the A-A sectional drawing of Fig. 5

Referring to Fig. 3: 1. annular plastic clip.The bar diameter of its internal diameter and use is complementary.2. pin, the height of pin is the protective layer thickness of designing requirement.3. lateral tie increases the bearing capacity of plastic clip.

Claims

1, plastic clip.It is characterized in that the clamp that a unsealed annulus in top links to each other with the feet of bottom.

2, plastic clip according to claim 1 is characterized in that being made with plastics, composite material.

3, plastic clip according to claim 1 is characterized in that also the available metal material forms.

4, plastic clip according to claim 1 is characterized in that the shape of pin can be rectangle, and is trapezoidal.

5, plastic clip according to claim 1 is characterized in that pin can be that single pin also can be two pin.According to instructions for use in pin, the bottom establishes a tie rod and couples together, and also can not establish tie rod.