CN2155460Y

CN2155460Y - Tight nut

Info

Publication number: CN2155460Y
Application number: CN 93230311
Authority: CN
Inventors: 张来芳
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-03-02
Filing date: 1993-03-02
Publication date: 1994-02-09
Anticipated expiration: 2003-03-02

Abstract

The utility model discloses an unciform nut. One end of the utility model is unciform, the other end of the utility model is provided with internal threads, and the utility model can be used as a clamping piece for fixing template in the construction of he template; besides, the utility model can be used as the fixing piece of a bracing frame in the erection of a scaffold, can be used as a hanging hook in installing a safety net, and can be used for fixing decorative materials in decoration operation. The utility model has the advantages of simple fabrication, less investment and easy operation in construction; besides, a great amount of human power and materials are saved, and the utility model is convenient to apply and popularize.

Description

Tight nut

The utility model belongs to the fastening piece of using in the building industry steel concrete construction, particularly prop up template, sets up the nut that operation such as scaffold is used in constructing.

In the building industry steel concrete construction now, as tall building, engineerings such as chimney, pond, bridge pier, dam when propping up template, mostly adopt traditional formwork method, or use the sliding formwork method.The reverse mould method all needs to make huge support system with steel and timber, when for example finishing one section concrete wall, fixed die plate, need the in-and-out bolt of usefulness, often just stay concrete within the walls, can not use again, when scaffolding or safety net, need a large amount of steel or timber and various link again, time-consuming again during construction, cause a large amount of wastes.

The purpose of this utility model is to manufacture a kind of tightening nut, makes fastening piece in template construction, as link, uses as fixed block in decorative engineering in the time of can or propping up safety net at scaffolding again.

The utility model is design like this, manufactures a kind of tightening nut, and an end is a hook-type, and the other end is processed with internal thread.

Fig. 1 is the sectional drawing of hook-type nut.

Fig. 2 makes the schematic representation of fastening piece in template construction for the hook-type nut.

Fig. 3 is hook-type nut schematic representation as link in scaffolding.

Fig. 4 is the schematic representation of the fixed block of hook-type nut when propping up safety net.

Illustrate: the hook portion of (1) nut, (2) internal thread of the inner chamber of nut, (3) nut, (4) reinforcing bar in the concrete, (5) bolt, (6) nut, (7) major part screw, (8) tool type scaffold, the supporting part of (9) tool type scaffold, (10) connecting plate, (11) template, (12) concrete.

In conjunction with the accompanying drawings the utility model is done concrete the introduction: the hook-type nut can be cast with irony, and again through the machining internal thread, the above thick reinforcing bar processing of also available φ 20mm is manufactured, and the internal thread bore of hook-type nut is generally φ 14-φ 25mm.Use condition is as follows: as shown in Figure 2, hook portion (1) with nut, be hooked on the reinforcing bar (4), boring is passed pattern hole to bolt (5) in template (11), screw in the internal thread (3) of hook-type nut, again nut (6) and bolt (5) are screwed, clamp template (11), the pouring concrete screws off nut (6) after waiting to solidify, extract bolt (5) out, template (11) just can remove, and the hook-type nut is just buried in the concrete (12), and construction has the screw mouth that should note the hook-type nut should be parallel with the concrete surface, so that the change screw is done him in addition and is used.

The effect of hook-type nut in pressing holding tool formula scaffold as shown in Figure 3, because behind the form removal, the screw mouth of hook-type nut is exposed at concrete (12) surface, can abut against the concrete surface of hook-type nut to the supporting frame of tool type scaffold (ladder frame that is welded into two bar reinforcements), use major part screw (7) to pass the gap of ladder frame again, be screwed in the internal thread (3) of hook-type nut, tool type scaffold (8) just is fixed on the concrete surface, and it is just easier to set up frame plate again.

The usage that installs safety net is used plain screw as shown in Figure 4, passes connecting plate with holes (10) and is screwed in the internal thread of hook-type nut, utilizes connecting plate (10) just can hang safety net.

The utility model hook-type nut has been imbedded in the concrete, has many uses in construction, for example in decorative engineering, joins different links and just can play different function or the like.

The utility model little investment is made simply, and it is convenient to use, and purposes is various, in construction, prop up template, scaffolding, install in safety net, the decorative engineering, can both save great amount of manpower, material resources (steel, timber etc.) guarantee construction quality, shorten the construction period, and are easy to apply.

Claims

A kind of construction tightening nut is characterized in that its end is a hook-type, and the other end has internal thread.