CN201223906Y - U-shaped pipe locking device - Google Patents

Abstract

The utility model relates to a U-shaped pipe locking device, which includes a base, a U-shaped groove matched with the U-shaped pipe is provided at the head of the base, and is characterized in that a clamping device that can clamp the pipe placed in the U-shaped groove and matches the pipe is provided in the base, and includes a positioning shaft provided on the base, and two symmetrical left and right clamping blocks are hinged on the positioning shaft, and grooves that match the U-shaped pipe are provided at the heads of the left and right clamping blocks, respectively, and push rod assemblies that can push the left and right clamping blocks to open and close are provided at the tails of the left and right clamping blocks. The purpose of the utility model is to provide a U-shaped pipe locking device with a simple structure and very convenient for clamping pipes placed in the U-shaped groove.

Description

A U-shaped pipe locking device

【Technical field】

The invention relates to a U-shaped tube locking device, in particular to a U-shaped tube locking device applied in a tube expander.

【Background technique】

At present, the bases that cooperate with U-shaped pipes generally only have a U-shaped groove that is matched with the U-shaped pipe on the base, but because the bottom of the pipe is only placed in the U-shaped groove, the pipe fittings cannot be clamped, and the pipe fittings are very It is easy to change the length, so that the pipe fittings are separated from the U-shaped groove, and the use effect is not good.

【Content of invention】

The invention overcomes the disadvantages of the prior art and provides a U-shaped pipe locking device which is simple in structure and conveniently clamps the pipe fittings placed in the U-shaped groove.

In order to solve the above-mentioned technical problems, the present invention adopts the following technical solutions:

A U-shaped tube locking device, including a base, and a U-shaped groove matching with the U-shaped tube is arranged on the head of the base, and it is characterized in that a A clamping device for fittings that fits over the fittings.

A U-shaped pipe locking device as described above is characterized in that the clamping device includes a positioning shaft arranged on the base, and two symmetrical left and right clamping blocks are hinged on the positioning shaft. The heads of the left and right clamping blocks are respectively provided with grooves to cooperate with the U-shaped pipes, and the tails of the left and right clamping blocks are provided with push rod assemblies that can push the left and right clamping blocks to open and close.

A U-shaped pipe locking device as described above is characterized in that the push rod assembly includes straight grooves arranged on both sides of the base, left and right inclined grooves on the left and right clamping blocks respectively, The inclination directions of the left chute and the right chute are opposite, and a push rod is arranged at the tail of the base. The straight slots on both sides of the base are also fitted with a spring on the push rod to enable the left and right clips to realize self-locking.

A U-shaped tube locking device as described above is characterized in that a stepped through hole is provided at the tail of the base, and a protruding ring is provided on the push rod, and the push rod is connected to the moving shaft through the stepped through hole, so that The above-mentioned spring is arranged between the stepped through hole and the protruding ring.

A U-shaped pipe locking device as described above is characterized in that the push rod includes a rod body and a connecting block screwed on the head of the rod body, a through hole is provided on the connecting block, and the moving shaft passes through Through the through hole, the protruding ring is arranged on the rod body.

Compared with the prior art, the present invention has the following advantages:

Since the present invention is provided with a clamping device that can clamp the pipe fittings placed in the U-shaped groove on the basis of the original base, it can clamp the U-shaped pipe well and prevent the U-shaped pipe from leaving the U-shaped groove;

Secondly, the clamping device only needs to combine two symmetrical clamping blocks and a push rod assembly that can push the clamping blocks to open and close, so that the function of clamping or releasing the pipe fittings can be solved, and the structure is simple.

【Description of drawings】

Fig. 1 is the perspective view when the present invention is clamped;

Fig. 2 is a perspective view when the present invention is opened;

Figure 3 is a perspective view of the clamping rod and the clamping device;

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

Fig. 5 is the A-A sectional view of Fig. 4;

Figure 6 is a perspective view of two clamping blocks;

Figure 7 is a perspective view of the present invention with a part of the base cut away;

Figure 8 is a state diagram of the present invention installed on a tube expander;

Fig. 9 is an enlarged view of part A of Fig. 8 .

【Detailed ways】

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

A U-shaped tube locking device, as shown in Figures 1, 7, and 8, is arranged on a tube expander and includes a base 1, and a U-shaped tube that cooperates with the U-shaped tube 8 is provided on the head of the base 1. Groove 2, in the base 1, is provided with clamping device 3 that can clamp the pipe fittings placed in the U-shaped groove 2 and coincides with the pipe fittings, so that the bottom of the U-shaped pipe 8 can be placed in the U-shaped groove 2, and at the same time The clamping device 3 can clamp the bottom of the U-shaped pipe 8 .

As shown in Figures 2, 3 and 6, the clamping device 3 includes a positioning shaft 36 arranged on the base 1, and two symmetrical left and right clamping blocks 31, 32 are hinged on the positioning shaft 36, At the head of the left and right clamping blocks 31 and 32, respectively, a groove 33 is provided to cooperate with the U-shaped pipe 8; Combined push rod assembly 4.

As shown in Figures 1, 2, 3, 4, and 5, the push rod assembly 4 includes straight grooves 47 arranged on both sides of the base 1, and the left and right clamping blocks 31, 32 are inclined respectively. Right chute 34,35, the inclination direction of described left chute 34, right chute 35 is opposite, is X shape, is provided with a push rod 41 at the tail of base 1, and the head of push rod 41 is hinged with a moving shaft 42, The moving shaft 42 slidably passes through the chute 34 of the two clamping blocks 32 and the straight groove 47 on both sides of the base 1, the moving shaft 42 slides in the chute 34 and the straight groove 47 and drives the left and right clamping blocks 31,32 opening and closing, on the push rod 41 also suit a spring 43 that can make the left and right clips 31,32 realize self-locking. Especially when the moving shaft 42 fell to the bottom of the left and right chute 34,35, the moving shaft 42 stopped at the bottom of the left and right chute 34,35 under the action of the push rod 41's own gravity. 42 slides, at this moment even without spring 43, it is also difficult for two clip blocks 32 to be opened.

As shown in Figures 3 and 5, a stepped through hole 6 is provided at the tail of the base 1, and a protruding ring 7 is provided on the push rod 41. The push rod 41 passes through the stepped through hole 6 and is connected to the moving shaft 42. The spring 43 is arranged between the stepped through hole 6 and the protruding ring 7 . The push rod 41 includes a rod body 44 and a connecting block 45 screwed on the head of the rod body 44. A through hole 46 is provided on the connecting block 45, and the moving shaft 42 passes through the through hole 46. The convex The ring 7 is arranged on the rod body 44, so that the rod body 44 is composed of two parts, which is convenient for assembling in terms of technology.

The U-shaped tube locking device can be used in multiple combinations, so that when it is installed on the tube expander, its work efficiency will be greatly improved, and it is very convenient to use.

Its working process is like this: Push the push rod 41 upwards, and the moving shaft 42 hinged on the head of the push rod 41 will slide in the corresponding left and right chute 34, 35 of the left and right clamping blocks 31, 32, And the moving shaft 42 also slides linearly in the straight groove 47 on the base 1 at the same time, because the inclined directions of the left and right chute 34, 35 are opposite, and are X-shaped, the limiting effect of the moving shaft 42 on the straight groove 47 is like this. Down, make the afterbody of left and right clamping block 31,32 do the rotation of opposite direction, make the head of left and right clamping block 31,32 open, pipe fitting is put into the head of left and right clamping block 31,32 afterwards, The U-shaped bottom of the pipe fitting is clamped in the U-shaped groove 2 . Release push rod 41 afterwards, and push rod 41 is under the spring force effect of spring 43, and push rod 41 moves back down, and the moving shaft 42 of push rod 41 head is also respectively in left and right clamp block 31,32 corresponding. The sliding of the straight groove 47 on the chute 34,35 and the base 1 will drive the left and right clamping blocks 31,32 together to clamp the pipe, that is, the spring force of the spring 43 makes the left and right clamping blocks 31, 32 32 realizes the effect of self-locking, realizes the effect of clamping and preventing the pipe fitting from breaking away from the U-shaped 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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