CN2124968U

CN2124968U - Quick steel pipe clamp

Info

Publication number: CN2124968U
Application number: CN 91228071
Authority: CN
Inventors: 陆英亮; 陈颂华
Original assignee: Nanjing Copper Plant
Current assignee: Nanjing Copper Plant
Priority date: 1991-11-03
Filing date: 1991-11-03
Publication date: 1992-12-16

Abstract

The utility model relates to a quick steel pipe clamp, which belongs to the building industry. In the utility model, that a screw rod of the original clamp and a screw cap of the original clamp are used as fastening devices is changed into that an upright post and a cam are used as the fastening devices. Therefore, at the time of operatiion, the course of screwing the screw cap is changed to the course that the cam is fastened, which simplifies operation, saves time and labor, and increases the work efficiency. The cam profile adopts the Archimedes uniform speed involute curved face. After the utility model is locked tightly, the self-locking action can be generated, and the utility model which can not be loosened automatically safely and reliably works.

Description

Quick steel pipe clamp

The utility model is to belong to the fastener that building trade is used to set up support.

At present, when in building and maintenance industry, setting up scaffold or other supports, connect and the fixing fastener used of steel pipe, be to constitute by buckle and base, one end of buckle becomes hinge type to be connected through bearing pin and base, the other end of fastener is to adopt the screw rod nut as fastener steel pipe to be clamped with being connected of base, but use the screw rod nut to make fastener, when setting up with removal bracket, because the quantity of fastener is very big, so tighten or unscrew nut and relatively require great effort time-consumingly, and dry as dust, influence the progress and the round-off work of engineering.In addition, because the building site inclement condition, the silt particle water slurry usually pollutes fastener, causes corrosion and stuck.Need again after pulling down to lubricate at screw rod nut place topping-up, rotating screw cap prevents that rust is dead back and forth, and maintenance load is quite heavy.

The purpose of this utility model provides a kind of steel tube fastener that does not adopt the screw rod nut to make fastener, uses this fastener when setting up and remove steel pipe scaffold, can realize quick operation, not only can speed up the work, and can reduce labor intensity greatly.

The purpose that the utility model proposes is achieved in that two screw rod nut fasteners with original steel tube fastener, change two fasteners that constitute by column, cam and axle thereof into, one end of column is connected with base, and cam is contained in a side of the column other end by it.Cam has handle hole.Column and cam are all rotatable, press or unclamp buckle with rotating cam, thereby reach the purpose that tightens or loosens steel pipe.

As seen by above-mentioned, the steel tube fastener that the utility model proposes is when setting up and dismantle steel pipe support, its fastener can be operated fast, has improved operating efficiency, has alleviated labour intensity, even it is stuck that corrosion also is difficult for, the maintenance amount after pulling down also can greatly alleviate.

The utility model is described in further detail below in conjunction with accompanying drawing.

Fig. 1 is a kind of structural representation of the present utility model.

Fig. 2 is an another kind of structural representation of the present utility model.

Fig. 3 is another structural representation of the present utility model.

With reference to Fig. 1, an end of buckle 1,4 is connected by 3 one-tenth hinge types of bearing pin 2,5 and base respectively, and can be 180 ° rotation, buckle 1,4 respectively with base 3 clamping steel pipes.Buckle 1,4 is orthogonal, so be cross with buckle 1,4 corresponding bases 3.Column 8 passes from the locating hole of base 3, and card jail in rear end is also rotatable.Cam 9 is by its 6 side that is connected column 8 upper ends, and can around its axle 6 rotate or and then axle 6 rotate.Have handle hole 7 on the cam 9.The contour surface of cam 9 is to adopt Archimedes's constant speed spiral involute curved surface.This curved surface clamps the back and produces a tangential component because its tangent line is a certain inclination angle, thereby once locking, between cam and the buckle except producing the self-locking because of friction, still because of tangential component produces self-lock force, so reliable operation, the anti-vibration ability that is necessary.Be used for two steel pipes and become cross fixedly connected, can be described as cross formula fastener.

With reference to Fig. 2, be to become to be rotationally connected between the base 3 of the base 3 of buckle 1 and buckle 4 with Fig. 1 difference.Be used for two steel pipes and become arbitrarily angled fixedly connected, can be described as rotary fastener.

With reference to Fig. 3, with Fig. 1 difference be that buckle 1,4 and base 3 thereof fuse respectively side by side, i.e. buckle and buckle, base and base and connect, and between buckle and base, be provided with the steel pipe positioner of forming by diaphragm and tongue core 10.Be to be used for two steel pipes to be in line fixedly connectedly, can be described as the I-shaped fastener or clasp.

When setting up support, rotate column 8, forward the cam 9 of fastener to buckle 1 outer end, pull open buckle 1, steel pipe is placed the groove of base 3, cover buckle 1, buckle steel pipe, again the cam on the column 89 is turned to the direction of buckle 1, inject handle hole 7 with the spanner rod then, pull cam 9, the characteristic of utilizing the gradually open surface of cam 9 to launch gradually forces buckle 1 that steel pipe is fixedly clamped.With same method of operating, with buckle 4 another root steel pipe that is fixedly clamped.Counter-rotation cam 9 during dismounting, unclamp buckle 1,4 after, again cam 9 is forwarded to the outer end of buckle 1,4 respectively, pull open buckle 1,4, promptly unload steel pipe.Operating process is simple and direct fast, thereby has improved operating efficiency.

Claims

1, a kind of quick steel tube fastener, comprise buckle [1,4], base [3], one end of buckle [1,4] becomes hinge type to be connected by bearing pin [2,5] and base [3] respectively, be provided with a fastener that constitutes by column [8], cam [9] and axle [6] thereof between the other end that is characterized as buckle [1,4] of the present utility model and the base [3] respectively, one end of column [8] is connected with base [3], cam [9] with handle hole [7] is contained in a side of column [8] other end by its axle [6], and column [8] and cam [9] turn.

2, quick steel tube fastener according to claim 1 is characterized by between the base (3) of the base (3) of buckle (1) and buckle (4) to become to be rotationally connected.

3, quick steel tube fastener according to claim 1 and 2, the contour surface that it is characterized by cam (9) are Archimedes's constant speed spiral involute curved surfaces.