CN2276532Y

CN2276532Y - Safety quick clamping self-locking contacting piece

Info

Publication number: CN2276532Y
Application number: CN 96219753
Authority: CN
Inventors: 诸葛建兴
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-10-16
Filing date: 1996-10-16
Publication date: 1998-03-18
Anticipated expiration: 2006-10-16

Abstract

The utility model relates to a safety quick clamping self-locking contacting piece, which is mainly used for a scaffold in building trade. The utility model is composed of a basal body, an upper press cover, pins and a fastener, wherein, the fastener adopts a position self-locking fastener composed of a concentric flat self-locking shaft and a T-shaped self-locking rod, the upper press cover adopts a resupinate structure design to enhance the strength of the upper press cover, the upper press cover is provided with an anti-skid reinforce nail to play function of double-fuse. The utility model has the characteristics of time saving, labor saving and safety.

Description

Safety fast clamping direct rotary contacting piece

The invention belongs to general building buckle, particularly be serial safety fast clamping reducing scaffold clasp.

Because the steel pipe scaffold fastening clip that generally uses in the present building trade, what adopt is the screw and nut fastening structure, when installation or removal, generally all to rotate tens times clamp nuts or unclamp nut with spanner, (generally tighten or loosen a nut and approximately need 55 seconds-1 minute 30 seconds), and labor strength is too big, and is tired easily.Fastening degree is often with scaffolder's feel, and is firmly excessive, makes thread stripping easily.And firmly not enough, tend to cause the fastener landing, can cause the balladeur train accident when serious.In addition in work progress owing to expose to the sun and rain, mud spills and solidifies, and can cause screw, nut corrosion, influences mechanical strength after the screw corrosion, the carrying gravitational low is dangerous.And when dismounting, be difficult to take apart, have to adopt sawing method devastatingly sometimes, be unfavorable for that like this recovery of fastener is reused, and cause fastener damage and nut to lose easily.Therefore, each engineering its loss late after installing and using reaches more than 30% the maintenance cost height.

The purpose of this utility model provide a kind of simple in structure, installing/dismounting is easily quick, fastening fireballing safety fast clamping direct rotary contacting piece.

At the shortcoming that exists in the prior art, the utility model provides a kind of safety fast clamping direct rotary contacting piece.The direct rotary contacting piece is meant and comprises right angle, three kinds of similar steel pipe scaffold fastening clips of rotation and butt joint.

Safety fast clamping direct rotary contacting piece of the present utility model is by matrix, upper press cover, pin and securing member constitute, matrix is connected by the pin loose-leaf with upper press cover one end, also can adopt other conventional movable connection method, the other end of upper press cover is fastenedly connected through securing member and matrix, be different from the T shape screw and nut structure that securing member adopts in the prior art, securing member adopts a T shape self-lock rod, one end of self-lock rod is the crosspiece piece, the other end has an axis hole, in axis hole, wear a concentric flat self-locking shaft, self-locking axostylus axostyle middle part is concentric flat structure with T shape bar relative position, the width of flat structure should be more than or equal to the hole depth of T shape self-lock rod axis hole with one heart, and a termination of self-locking shaft is provided with one and revolves an axle spoon part.Utilize rotation spoon part that self-locking shaft is rotated, the rotation of flat locations of structures is moved the T shape bar relative with it on the self-locking shaft, reaches upper press cover and the fastening purpose of matrix.

It is simple to the utlity model has theory structure, and production process is few, safe and reliable, in light weight, cost is low, and torque resistant, antiskid fall, anti-ly destroy (tearing open not open with general tool), installing/dismounting is easily quick.It is compared with the fastener of prior art, have laborsaving (only need pull), fastening speed fast (only needed for 2 seconds, raise the efficiency more than 25 times), do not have maintenance cost, long service life, the proportion of goods damageds extremely low, have a better skid resistance, and have auto-lock function, thereby improved safety in utilization.

Fig. 1 is a right-angle coupler structural representation of the present utility model.

Fig. 2 is a butt joint fastener structures schematic diagram of the present utility model.

Doing one below in conjunction with 1,2 pairs of structures of the present utility model of accompanying drawing, embodiment and operating principle describes in detail.Fig. 1 has provided right-angle coupler example structure schematic diagram of the present utility model, be by matrix 5, upper press cover 2, pin 6 and self-lock rod 8,10, self-locking shaft 4,9 constitutes, upper press cover 2 adopts the hyperbolical structure, but on upper press cover 2, be provided with the antiskid strengthening nail 1 that turn presses down upper press cover in addition, to prevent to be stuck in the pole steel tube 3 in the fastener and the slip of cross bar steel pipe 7.A termination at self-locking shaft 4,9 is provided with spoonful, and the spoon part has adopted triangle, also can adopt other shape.T shape self-lock rod crosspiece piece inner surface is the V-arrangement inclined-plane.Its operating principle is: hyperbolic type upper press cover 2 connects as one by pin 6 and matrix 5, and the axis hole that concentric flat self-locking shaft 4,9 passes T shape self-lock rod 8,10 is connected with matrix 5.After steel pipe 3 (or 7) is installed on the matrix 5, hyperbolical upper press cover 2 is anchored on the steel pipe 3 (or 7), then T shape self-lock rod 8,10 is advanced in the locating slot of hyperbolical upper press cover 2, utilize special unlocking tool to make the self-locking shaft rotation by the spoon part of pulling on the self-locking shaft 4,9, when the recess surface of the flat of self-locking shaft 4,9 part during towards this termination of axis hole of T shape self-lock rod 8,10, axis hole wall near this termination on recess surface and the T shape self-lock rod 8,10 contacts, self-lock rod 8,10 is extended, and fastener is in releasing orientation.When the recess surface of self-locking shaft 4,9 during towards that end of crosspiece piece of T shape self-lock rod 8,10, the recess surface does not contact with axis hole wall on the self-lock rod 8,10, and fastener is in locking state.On the two ends axial plane of self-locking shaft 4,9, can also slot, the spring catch sheet is set in groove can prevent that then self-locking shaft 4,9 from dropping out from axis hole, also witness marker can be set on the end face of self-locking shaft 4,9, with clear and definite its location status.

Fig. 2 is of the present utility model to clasp example structure figure, be that two steel pipes 13,17 are placed in matrix 15 and the upper press cover 12, with its locking, be provided with two strengthening nails 11 with self-locking shaft 14, self-lock rod 18 on the upper press cover 12, self-lock rod 18 adopts the structure identical with Fig. 1.Also be installed with center-pole connecting ring 19 on the pin 16.

Claims

1, a kind of safety fast clamping direct rotary contacting piece, constitute by pedestal, upper press cover, pin and securing member, pedestal is connected by the pin loose-leaf with upper press cover one end, the other end of upper press cover is fastenedly connected through securing member and pedestal, it is characterized in that securing member is a T shape self-lock rod, one end of self-lock rod is the crosspiece piece vertical with self-lock rod, the other end have one with the identical axis hole of crosspiece piece direction, in axis hole, wear a self-locking shaft, self-locking shaft axostylus axostyle middle part is concentric flat structure with T shape self-lock rod axis hole opposite position, and the termination of self-locking shaft is provided with one and revolves an axle spoon part.

2, safety fast clamping direct rotary contacting piece according to claim 1 is characterized in that upper press cover is the hyperbolical structure.

3, safety fast clamping direct rotary contacting piece according to claim 2, but it is characterized in that upper press cover is provided with the antiskid strengthening nail that turn presses down upper press cover.

4, safety fast clamping direct rotary contacting piece according to claim 1 is characterized in that T shape self-lock rod crosspiece piece inner surface is the V-arrangement inclined-plane.

5, safety fast clamping direct rotary contacting piece according to claim 1 is characterized in that having draw-in groove on the axial plane of the both ends of self-locking shaft, and the spring catch sheet is set in draw-in groove.