CN2139153Y

CN2139153Y - Oppositely pulling screw bolt and wrench thereof

Info

Publication number: CN2139153Y
Application number: CN 92219394
Authority: CN
Inventors: 李四宝; 杨荣森
Original assignee: Jinan No4 Building Engineering Co
Current assignee: Jinan No4 Building Engineering Co
Priority date: 1992-07-22
Filing date: 1992-07-22
Publication date: 1993-07-28
Anticipated expiration: 2002-07-22

Abstract

The utility model discloses an oppositely pulling screw bolt and special wrench thereof in the technical field of the architecture. The oppositely pulling screw bolt has three sections, each two sections can be connected with each other by a conical special nut with screw inner threads, the big cross section side of the conical special nut has poking holes whose amount is in even number, and the radial directions of the poking holes are corresponding with each other. The wrench is formed by that two parallel poking needles are perpendicularly and fixedly connected with a horizontal handle. The oppositely pulling screw bolt which is used for fixing a concrete form panel has the advantages of convenient assembly and disassembly. The screw bolts and the special nuts of the two outer sections can be recovered and repeatedly used, and the construction cost is reduced.

Description

Oppositely pulling screw bolt and wrench thereof

The utility model relates to the split bolt and the special spanner thereof of building field.

At present, in concrete wall, pool wall construction, formboard fastening adopts split bolt.Bolt is an elongated bolt, and it is fastening that the template both sides add plain nut with the butterfly clip.There is following shortcoming in this mode: 1, adopt the geometric thickness of elongated bolt control wall, adopt the welding block usually or on reinforcing bar mode such as welding strut, do like this that the expense of not only taking a lot of work is expected and error is bigger.2, in assembly unit and dismounting template procedure, template will be interted in bolt, construction inconvenience.Particularly in dry concrete wall, pool wall are filled with water architecture construction, because of corrosion seepage takes place for preventing that bolt is exposed in the water, to pick after the form removable and chisel out the bolt redundance, the cutter position be will pick again and the effort of taking a lot of work, 3, in wall, pool wall template construction mended, one less important many struts and the block of consuming, and after the template dismounting, also to slice off the construction cost height being exposed at the outer bolt redundance of wall.

It is a kind of easy to use that the purpose of this utility model is to provide, and reduces the split bolt and the special spanner thereof of construction cost.

Technical solution of the present utility model is: a kind of split bolt, comprise bolt and clamp nut, and bolt is three sections, is threaded by special nut between per two sections adjacent bolts; Special nut is tapped truncated cone-shaped, its heavy in section end have even number radially corresponding pull out the hole.Be used to dismantle the matching used spanner of special nut and split bolt, have parallel two to pull out pin, pull out pin and be connected with the handle vertical fixing, the two two radially corresponding spacings of pulling out the hole of pulling out on pin spacing and the special nut equate, pull out needle tip and pull out hole shape and coincide.

According to technique scheme, in use, earlier the one section bolt in centre and two special nuts are regulated length by drawing, put it into again between two templates, other two sections bolts pass two templates respectively and special nut is fixed, again with clamp nut with the two section bolt of conventional method with template outside.It is dead with the former hold-down nut back of the body to add earlier a plain nut during template in dismounting on the bolt of the outside of clamp nut, turns hold-down nut with spanner again two sections bolts on both sides are unloaded, slightly firmly just can be with form removable to template.Pull out pin with two of special spanner at last and insert radially corresponding two and pull out the hole, firmly rotation can be unloaded special nut standby.Unloading the cave that stays behind the special nut blocks with the concrete mortar and gets final product.It has following advantage: can guarantee that 1, the body of wall geometric thickness is accurate, construction quality is good; 2, easy to operate in template assembly and unloading process, efficient is high, particularly can save after template dismounting and cut off the unnecessary bolt in outside, picks operations such as cutter concrete; 3, two sections bolts and special nut are reusable, have saved a large amount of struts, block, reduce construction cost, and 4, in the concrete-pool-wall construction, only need a small amount of mortar to fill hole, can be made into dry concrete wall, save plastering process.

Accompanying drawing 1 cuts open schematic diagram for the utility model split bolt office;

Accompanying drawing 2 is looked schematic diagram for the utility model spanner master.

According to accompanying drawing, a kind of embodiment of the present utility model is described: a kind of split bolt, comprise bolt and clamp nut 1, bolt is three sections, is threaded by special nut 4 between bolt section 2 and the bolt section 5.Special nut 4 is tapped truncated cone-shaped, and its heavy in section two or more even numbers of end band are radially corresponding pulls out hole 3.With the matching used special spanner of split bolt, two to pull out pin 7 parallel and be connected (welding or casting integrated) with cross handle 6 vertical fixing, and the two two radially corresponding spacings of pulling out hole 3 of pulling out on pin 7 spacings and the special nut 4 are equal.Tip 8 with pull out hole 3 shapes and coincide.

Claims

1, a kind of split bolt, comprise bolt and clamp nut 1, it is characterized in that bolt is three sections, be threaded by special nut 4 between bolt section 2 and the bolt section 5: special nut 4 is tapped truncated cone-shaped, its heavy in section end have even number radially corresponding pull out hole 3.

2, the matching used spanner of the described split bolt of a kind of and claim 1, it is characterized in that two, to pull out pin 7 parallel and be connected with cross handle 6 vertical fixing, the two two radially corresponding spacings of pulling out hole 3 of pulling out on pin 7 spacings and the special nut 4 equate, tip 8 with pull out hole 3 shapes and coincide.