CN202324592U - Anti-skidding scaffold fastener - Google Patents

Abstract

An anti-skidding scaffold fastener comprises L-shaped seats (2), screwing bolts (4) and movable buckles (5). The two L-shaped seats (2) are riveted via rivets (7) to form two fixing seats via rivets (7), and axle centers of the fixing seats can rotate mutually and can be perpendicular or parallel mutually; and each L-shaped seat is provided with the corresponding screwing bolt (4) and the corresponding movable buckle (5), one end of each screwing bolt is connected with one end of the corresponding L-shaped seat via a first hinge pin (3), one end of each movable buckle (5) is connected with the other end of the corresponding L-shaped seat via a second hinge pin (6), a free end of each movable buckle can be clamped at a free end of the corresponding screw bolt, and an inner surface (5a) of each movable buckle (5) is a tooth-shaped surface. The problem of feint attachment between the fastener and a surface of a steel tube is eliminated, pressure is increased, an effective anti-skidding function is realized, self rotation of the steel tube is prevented, and stability and safety of erection of a scaffold are further strengthened.

Description

Anti-skidding scaffold clasp

Technical field

It is the scaffold clasp technical field of structures that the utility model belongs to the anti-skidding and spline fastening devices of controlling building scaffold.

Background technology

At present, scaffold erecting base commonly used and right-angle coupler, rotary buckle, to various fasteners such as clasps are surface contact state between its fastener and the steel pipe that scaffolds erecting.In the practical application, owing to receive the influence of Architectural Engineering Environment, steel tube surface tends to have some husky ash particles or corrosion forms the surface variation; Add that the steel pipe that scaffolds erecting is to reuse, steel pipe is often fallen, thrown away in unit in charge of construction in loading and unloading and transportation, cause steel pipe to lose circle; When continuing on for scaffolding erecting, can cause the contact surface applying of steel pipe and fastener to have illusion, it is not tight to fit; Face contacts with face owing to receive the restriction of screwing force, and pressure is big inadequately, and uncertain factors such as sand and dust particle or corrosion are stressed; Can cause between steel pipe and the fastener to produce to relatively move or rotate, bring very big potential safety hazard.

Summary of the invention

In order to overcome the deficiency of existing fastener and the fastening existence of steel pipe contact surface; The utility model provides a kind of new technical scheme; So that the illusion that fastener and steel pipe face are fitted is eliminated, increase pressure, effectively anti-skidding; Prevent the rotation of steel pipe self, further strengthen the stability and the safety of scaffold building.

The technical scheme that the utility model adopted is following.

Anti-skidding scaffold clasp comprises L type seat, tights a bolt and movable hasp, two L type seats is riveted into that two axle center can rotate each other, mutual perpendicular or parallel holder through rivet; On each L type seat, all be equipped with and tight a bolt and movable hasp; The end that tights a bolt is connected with an end of L type seat through first bearing pin; Movable hasp one end is connected with the other end of L type seat through second bearing pin; The free end of movable hasp can be installed in the free end that tights a bolt, and the inner surface of movable hasp is a toothed surface.

The inner surface of the L type seat of the utility model also can be toothed surface.The tooth of said toothed surface is straight-tooth or helical teeth.

Adopt the utility model; Because the inner surface of L type seat and the inner surface of movable hasp are toothed surface, when scaffolding erecting, L type seat and movable fastener no longer are that simple face contacts with the contact surface of steel pipe; But the crest top land of one group of straight-tooth or helical teeth has strengthened pressure.On the one hand; When crest top land and steel pipe are fastening; Because the particle of steel tube surface or established mistake circle are when the extruding that receives fastening force; The mistake boss that makes particle be squeezed into teeth groove or exist rises partly to be interlaced by profile of tooth and compresses, thereby eliminates general face contact because the fastening illusion that particle or various mistake circles cause effectively prevents the relative slip of fastener and steel pipe.On the other hand, there is the mistake circle in steel tube surface, tooth top is extruded in the groove that loses circle, and loses the teeth groove that round bossing is squeezed into the fastener contact surface, has strengthened the spline performance to steel pipe greatly.The utility model can strengthen the pressure that is applied on the steel pipe, prevents the relative slip of scaffold clasp and steel pipe, effectively prevents the rotation of steel pipe, solid and reliable and safety.

Further set forth the content of the utility model below in conjunction with Figure of description.

Description of drawings

Fig. 1 is the sketch map when adopting the utility model to scaffold erecting.

The specific embodiment

As shown in Figure 1, the anti-skidding scaffold clasp of the utility model is riveted into two L type seats 2 through rivet 7 that two axle center can rotate each other, perpendicular or parallel holder, on each L type seat, all be equipped with tight a bolt 4 with movable hasp 5.The end that tights a bolt is connected with an end of L type seat through first bearing pin 3, tights a bolt and can turn an angle along first bearing pin 3.Movable hasp one end is connected with the other end of holder through second bearing pin 6, and movable hasp can turn an angle along second bearing pin 6.The free end of movable hasp can be installed in the free end that tights a bolt.The key of the utility model is that the inner surface 5a of movable hasp 5 is a toothed surface.In order to make fastener whole more reliable, can the inner surface 2a of L type seat 2 also be made toothed surface with the steel pipe interlock.The tooth of toothed surface can be straight-tooth, also can be helical teeth.

During use; Open two movable hasps on the L type seat, respectively L type seat and movable hasp are set on orthogonal two steel pipes 1, then the free end of movable hasp is installed in 4 the free end of tighting a bolt; The clamp nut 4a that screws and tight a bolt clamps steel pipe.At this moment, the tooth of the tooth of movable hasp inner surface and L type base inner surface is engaged in steel tube surface, can prevent effectively that fastener from sliding, getting loose and spin, reliable and stable and safety.

Claims (3)

1. anti-skidding scaffold clasp comprises L type seat (2), tights a bolt (4) and movable hasp (5), two L type seats is riveted into that two axle center can rotate each other, mutual perpendicular or parallel holder through rivet (7); On each L type seat, all be equipped with and tight a bolt (4) and movable hasp (5); The end that tights a bolt is connected with an end of L type seat through first bearing pin (3); Movable hasp one end is connected with the other end of L type seat through second bearing pin (6); The free end of movable hasp can be installed in the free end that tights a bolt, and it is characterized in that the inner surface (5a) of movable hasp (5) is a toothed surface.

2. anti-skidding scaffold clasp according to claim 1 is characterized in that, the inner surface (2a) of L type seat (2) is a toothed surface.

3. anti-skidding scaffold clasp according to claim 1 and 2 is characterized in that, the tooth of said toothed surface is straight-tooth or helical teeth.

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