CN201223906Y - Locking device for U-tube - Google Patents

Abstract

The utility model relates to a U-tube locking device, which comprises a base; the head part of the base is provided with a U-slot matched with the U-tube; the locking device is characterized in that a clamp device which can clamp the tube placed in the U-slot and is tallied with the tube is arranged in the base; the clamp device comprises a positioning shaft arranged on the base; a left clamp block and a right clamp block which are symmetrical are hinged on the positioning shaft; the head parts of the left and right clamp blocks are respectively provided with grooves matched with the U-tube; and the tail parts of the left and right clamp blocks are respectively provided with handspike components which can push the left and right clamp blocks to be opened and closed. The utility model aims to provide a U-tube locking device which has simple structure and can easily clamp the tubes placed in U-slots.

Description

A kind of U type pipe locking device

[technical field]

The present invention relates to a kind of U type pipe locking device, in particular a kind of U type pipe locking device that is applied in the electric tube expander.

[background technology]

The pedestal that cooperates with U type pipe at present generally all is to have a U type groove that cooperates with U type pipe on pedestal, but owing to the bottom of pipe just is placed in the U type groove, can not clamp pipe fitting, and pipe fitting is easy to take place length variations, makes pipe fitting break away from U type groove, and result of use is also bad.

[summary of the invention]

The present invention has overcome the deficiencies in the prior art, provide a kind of simple in structure, easily clamp the U type pipe locking device that is placed on pipe fitting in the U type groove.

In order to solve the technical problem of above-mentioned existence, the present invention adopts following technical proposal:

A kind of U type pipe locking device includes pedestal, is provided with the U type groove that cooperates with U type pipe at the head of pedestal, it is characterized in that being provided with in pedestal clamping being placed on clamping device pipe fitting in the U type groove and that match with pipe fitting.

Aforesaid a kind of U type pipe locking device, it is characterized in that described clamping device includes the locating shaft that is arranged on the pedestal, on locating shaft, be hinged with the left and right fixture block of two symmetries, be respectively equipped with and U type pipe fit at described left and right fixture block head, be provided with the push-rod assembly that can promote left and right fixture block opening and closing at left and right fixture block afterbody.

Aforesaid a kind of U type pipe locking device, it is characterized in that described push-rod assembly includes the straight trough that is arranged on the pedestal both sides, the left and right skewed slot that on left and right fixture block, tilts respectively, the incline direction of described left skewed slot, right skewed slot is opposite, be provided with a push rod at the pedestal afterbody, the head of push rod is hinged with a shifting axle, and this shifting axle passes the skewed slot of two fixture blocks and the straight trough of pedestal both sides slidably respectively, goes back suit one and can make left and right fixture block realize the spring of self-locking on push rod.

Aforesaid a kind of U type pipe locking device is characterized in that being provided with a ladder through hole at the pedestal afterbody, is provided with a bulge loop on push rod, and described push rod passes ladder hole and is connected with shifting axle, and described spring is arranged between ladder hole and the bulge loop.

Aforesaid a kind of U type pipe locking device is characterized in that described push rod includes the body of rod and the contiguous block that is screwed onto body of rod head, is provided with a through hole on contiguous block, and described shifting axle passes through hole, and described bulge loop is located on the body of rod.

The present invention compared with prior art has following advantage:

Because the present invention is provided with and can clamps the clamping device that is placed on pipe fitting in the U type groove, can clamp U type pipe well, prevent that U type pipe breaks away from U type groove on the basis of original pedestal;

Secondly clamping device only combines with the push-rod assembly that can promote the fixture block opening and closing with the fixture block of two symmetries, just can solve the function of clamping pipe fitting or decontroling pipe fitting, and is simple in structure.

[description of drawings]

Fig. 1 is the stereogram of the present invention when clamping;

Fig. 2 is the stereogram of the present invention when opening;

Fig. 3 is the stereogram of clamping bar and clamping device;

Fig. 4 is a front view of the present invention;

Fig. 5 is the A-A profile of Fig. 4;

Fig. 6 is the stereogram of two fixture blocks;

Fig. 7 the present invention cuts the stereogram of a part of pedestal;

Fig. 8 the present invention is installed in the state diagram on the electric tube expander;

Fig. 9 is the A portion enlarged drawing of Fig. 8.

[specific embodiment]

Below in conjunction with the accompanying drawing and the specific embodiment the present invention is described in further detail:

A kind of U type pipe locking device, shown in Fig. 1,7,8, it is arranged on the electric tube expander, include pedestal 1, head at pedestal 1 is provided with the U type groove 2 that cooperates with U type pipe 8, pedestal be provided with for 1 li can clamp be placed on pipe fitting in the U type groove 2 and with the clamping device 3 that pipe fitting matches, U type pipe 8 bottoms can be put into 2 li of U type grooves, clamping device 3 can be clamped U type pipe 8 bottoms simultaneously.

Shown in Fig. 2,3,6, described clamping device 3 includes the locating shaft 36 that is arranged on the pedestal 1, on locating shaft 36, be hinged with the left and right fixture block 31,32 of two symmetries, be respectively equipped with and U type pipe 8 fit 33 at described left and right fixture block 31,32 heads, be provided with the push-rod assembly 4 that can promote left and right fixture block 31,32 opening and closing at left and right fixture block 31,32 afterbodys.

As Fig. 1,2,3,4, shown in 5, described push-rod assembly 4 includes the straight trough 47 that is arranged on pedestal 1 both sides, on a left side, right fixture block 31, a left side that tilts respectively on 32, right skewed slot 34,35, described left skewed slot 34, the incline direction of right skewed slot 35 is opposite, be X-shaped, be provided with a push rod 41 at pedestal 1 afterbody, the head of push rod 41 is hinged with a shifting axle 42, this shifting axle 42 passes the skewed slot 34 of two fixture blocks 32 and the straight trough 47 of pedestal 1 both sides slidably respectively, shifting axle 42 slides in skewed slot 34 and straight trough 47 and drives a left side, right fixture block 31,32 foldings are gone back suit one and can be made a left side on push rod 41, right fixture block 31,32 realize the spring 43 of self-locking.Particularly when shifting axle 42 is fallen the bottom of left and right skewed slot 34,35, shifting axle 42 stops at the bottom of left and right skewed slot 34,35 under the effect of push rod 41 self gravitations, do not slide if do not promote shifting axle 42,, be difficult to two fixture blocks 32 are opened yet at this moment even without spring 43.

Shown in Fig. 3,5, be provided with a ladder through hole 6 at pedestal 1 afterbody, on push rod 41, be provided with a bulge loop 7, described push rod 41 passes ladder hole 6 and is connected with shifting axle 42, and described spring 43 is arranged between ladder hole 6 and the bulge loop 7.Described push rod 41 includes the body of rod 44 and is screwed onto the contiguous block 45 of the body of rod 44 heads, be provided with a through hole 46 on contiguous block 45, described shifting axle 42 passes through hole 46, and described bulge loop 7 is located on the body of rod 44, the body of rod 44 is made up of two parts like this, convenient on technology aspect assembling.

Described U type pipe locking device can a plurality ofly combine use, and when being arranged on the electric tube expander like this, its operating efficiency will improve widely, uses also very convenient.

Its course of work is such: push rod 41 is upwards pushed away, the shifting axle 42 that is hinged on push rod 41 heads will be on a left side, right fixture block 31,32 corresponding left sides, right skewed slot 34, slide in 35, and shifting axle 42 simultaneously also the straight trough on pedestal 1 make linear slide for 47 li, a because left side, right skewed slot 34,35 directions that tilt are opposite, be X-shaped, shifting axle 42 is under the position-limiting action of straight trough 47 like this, make a left side, right fixture block 31,32 afterbody is done rightabout rotation, make a left side, right fixture block 31,32 head is opened, afterwards pipe fitting is put into a left side, right fixture block 31,32 head, the U type bottom of pipe fitting just is sandwiched in 2 li of U type grooves.Decontrol push rod 41 afterwards, push rod 41 is under the spring force effect of spring 43, push rod 41 down moves back, the shifting axle 42 of push rod 41 heads is also slided at left and right fixture block 31,32 corresponding skewed slot 34,35 and the straight troughs on the pedestal 1 47 respectively, then can drive left and right fixture block 31,32 makes it clamp pipe fitting together altogether, the spring force that is spring 43 makes left and right fixture block 31,32 realize the effect of self-locking, realizes clamping and preventing that pipe fitting breaks away from the effect of U type groove 2.

Claims (5)

1, a kind of U type pipe locking device, include pedestal (1), head at pedestal (1) is provided with the U type groove (2) that cooperates with U type pipe (8), it is characterized in that being provided with in pedestal (1) lining clamping being placed on clamping device (3) pipe fitting in the U type groove (2) and that match with pipe fitting.

2, a kind of U type pipe locking device according to claim 1, it is characterized in that described clamping device (3) includes the locating shaft (36) that is arranged on the pedestal (1), on locating shaft (36), be hinged with the left and right fixture block (31,32) of two symmetries, be respectively equipped with and U type pipe (8) fit (33) at described left and right fixture block (31,32) head, be provided with the push-rod assembly (4) that can promote left and right fixture block (31,32) opening and closing at left and right fixture block (31,32) afterbody.

3, a kind of U type pipe locking device according to claim 2, it is characterized in that described push-rod assembly (4) includes the straight trough (47) that is arranged on pedestal (1) both sides, on a left side, right fixture block (31,32) left side that tilts respectively on, right skewed slot (34,35), described left skewed slot (34), the incline direction of right skewed slot (35) is opposite, be provided with a push rod (41) at pedestal (1) afterbody, the head of push rod (41) is hinged with a shifting axle (42), this shifting axle (42) passes the skewed slot (34) of two fixture blocks (32) and the straight trough (47) of pedestal (1) both sides slidably respectively, goes back suit one and can make a left side on push rod (41), right fixture block (31,32) spring (43) of realization self-locking.

4, a kind of U type pipe locking device according to claim 3, it is characterized in that being provided with a ladder through hole (6) at pedestal (1) afterbody, on push rod (41), be provided with a bulge loop (7), described push rod (41) passes ladder hole (6) and is connected with shifting axle (42), and described spring (43) is arranged between ladder hole (6) and the bulge loop (7).

5, a kind of U type pipe locking device according to claim 4, it is characterized in that described push rod (41) includes the body of rod (44) and is screwed onto the contiguous block (45) of the body of rod (44) head, on contiguous block (45), be provided with a through hole (46), described shifting axle (42) passes through hole (46), and described bulge loop (7) is located on the body of rod (44).

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