CN2370084Y

CN2370084Y - Positioning clip for steel bar

Info

Publication number: CN2370084Y
Application number: CN 99231465
Authority: CN
Inventors: 胡忠恕; 赵世荣
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-04-22
Filing date: 1999-04-22
Publication date: 2000-03-22
Anticipated expiration: 2009-04-22

Abstract

The utility model relates to a positioning clip for a steel bar, which is characterized in that a protective layer clip and a hogging moment rib supporting clip are arranged. The protective layer clips (1, 2) are staggered stool shapes; each end of the hogging moment rib supporting clip is composed of three single side circular arc clips which are laterally zygomorphic, wherein, two single side clips (5) are opposed to be connected with one single side clip (4). The utility model can accurately control the thickness of the protective layer of the slab rib and the spacing height between the upper layer slab rib and the lower layer slab rib, solves the problem of difficult positioning of the thicknesses of the protective layers of the plate steel bar, the beam steel bar, the column steel bar and the wall steel bar and the spacing between the upper layer slab rib and the lower layer slab rib, and draws the curtain on the rough, original and optional job status existing in the existing construction. The utility model saves construction time, improves job condition, and improves production efficiency.

Description

A kind of bar spacers

The utility model relates to the prefabricated apparatus of building unit, specifically a kind of bar spacers.

The thickness of protection tier of control reinforced concrete structure has several ways at present, but all because of defective of self and the randomness poor effect when constructing.The one, a placing sand slurry prefabricated section: the easy fragmentation in work progress of this method becomes illusory; The 2nd, pad rubble or building stones sheet material fragment: particle shape, size, variable thickness, jammed on or shaken easy landing, inaccessible design protection layer thickness, and building stones sheet material finish bonds not good enough with cast-in-situ concrete; The 3rd, a pad reinforcing bar " short section ": regardless of the size and the length of " short section " diameter, bring i.e. pad during often owing in sight pad of construction, randomness is very outstanding, can not guarantee the topping uniformity, also causes the waste of steel.

In addition, reach the height of design for guaranteeing the spacing of laminate muscle up and down, the job site still adopts " split heads iron " to support at present, and this law limitation is: need wear colligation again behind the pad when 1, prop up pad, construction is relatively more difficult; 2, on-the-spot homemade " malleable iron stool " size and not of uniform size; 3, prop up the pad " split heads iron " though through colligation, easy overturning when being subjected to trampling, the lathe turner personnel trample to make highly and diminish in addition, the difficulty that resets is a difficult problem in the cast-in-situ concrete construction.

The purpose of this utility model provides a kind ofly can control beam, plate, and the post thickness of protection tier can effectively guarantee the bar spacers of laminate muscle spacing up and down again.

The utility model is achieved in that this bar spacers, be sheath card and negative bending moment rib support card, the sheath card is staggered stool shape, and the every end of negative bending moment rib support card is made up of three pedion circular arc cards, wherein two single face cards and opposed attaching of single face card of symmetry up and down.

Locator card of the present utility model has following advantage:

1, the protective layer thickness of control panel muscle and the spacing height of laminate muscle accurately up and down;

2, the protective layer thickness of plate, beam, post, wall reinforcing bar in the cast-in-situ concrete engineering and the difficult problem in laminate muscle spacing location have up and down been solved, extensive, original, the random job status that the existing construction that is through with exists impels above-mentioned link to realize standardization as early as possible;

3, save the engineering time, not colligation, quick and easy for installation, firm, defectives such as the cracked and distortion of no slippage are easy to inspection and manage, and have improved condition of work, have improved production efficiency;

4, save steel, lighter than reinforcing bar " short section ", each locator card is about the 1/5-1/20 of reinforcing bar " short section ".

Fig. 1,2,3 looks for sheath card master of the present utility model, side-looking and vertical view;

Fig. 4,5,6 is for the master of negative bending moment rib support card of the present utility model looks, side-looking and vertical view.

As shown in Figure 1, 2, 3, sheath card 1,2 of the present utility model is staggered stool shape, and height H can determine as required.Be depicted as the negative bending moment rib support card as Fig. 4,5,6, every end is made up of three pedion circular arc cards, and is symmetrical up and down, two single face cards 5 and single face card 4 opposed attachings.

During use, (1) is (or beam, post muscle tie the back) after the top plate muscle ties, according to the requirement of set-point, lower plywood muscle (or stirrup of beam, post) is aimed at this Ka Huxingkaikouchu, firmly one press, reinforcing bar promptly advances in the collar, and footing 2 contact stencil planes are got final product.(2) after the top plate muscle ties, one angle tilts the negative bending moment rib support card earlier in laminate muscle space up and down, two ends arc card opening is aimed at laminate muscle up and down, and this card is got back to the vertical formwork state, the laminate muscle all is pressed in the collar at two ends about this card up and down under the power effect of hanging down.3 and 6 is the reinforcing bar that blocks among the figure.

Claims

1, a kind of bar spacers, it is characterized in that having sheath card and negative bending moment rib support card, sheath card (1,2) is staggered stool shape, and the every end of negative bending moment rib support card is made up of three pedion circular arc cards, wherein two single face cards (5) and the opposed attaching of a single face card (4) of symmetry up and down.