CN216705713U - Tube expansion device - Google Patents

Abstract

The utility model relates to the technical field of pipe processing, in particular to pipe processing equipment; the technical problem to be solved by the utility model is to provide a pipe expanding device capable of controlling the expansion force. The pipe expansion device includes a bottom plate, a top pipe, a mandrel, a handle and a rubber sleeve; the end of the handle is provided with a cam; the rubber sleeve is located between the top pipe and the bottom plate; the handle is located above the bottom plate; The top pipes are slidingly matched, one end of the mandrel is hinged with the cam, and the other end of the mandrel is provided with a block; the rubber sleeve and the top pipe are located between the block and the bottom plate.

Description

Tube expansion device

technical field

The utility model relates to the technical field of pipe processing, in particular to pipe processing equipment.

Background technique

In the existing pipe expansion device, the plug head is inserted into the pipe, the plug head is pushed in a straight line, and the pipe is expanded by mechanical hard extrusion. For thin-walled pipes, the use of plugs to expand the pipe cannot easily control the strength of the expansion, and thus cannot control the deformation of the pipe, which is easy to cause the pipe to burst.

Utility model content

The technical problem to be solved by the utility model is to provide a tube expanding device capable of controlling the expansion force.

The technical scheme adopted by the utility model to solve the technical problem is as follows: a pipe expansion device includes a bottom plate, a jacking pipe, a mandrel, a handle and a rubber sleeve;

The end of the handle is provided with a cam;

The rubber sleeve is located between the top pipe and the bottom plate;

The handle is located above the bottom plate;

The mandrel is slidingly matched with the bottom plate, the rubber sleeve and the top pipe, one end of the mandrel is hinged with the cam, and the other end of the mandrel is provided with a stopper;

The boot and top tube are located between the stop and the base plate.

Further, a wear-resistant plate is also included, and the wear-resistant plate is arranged between the cam and the bottom plate.

Further, a support tube is also included, the support tube is connected to and communicated with the bottom plate, the support tube is located between the rubber sleeve and the bottom plate, and the mandrel is slidably matched with the support tube.

Further, the support tube is detachably connected to the bottom plate.

Further, the bottom plate is provided with connecting holes.

Further, the handle is provided with non-slip threads.

Further, the stopper is detachably connected with the mandrel.

Further, the stopper is a nut, and the nut is threadedly connected with the mandrel.

The beneficial effects of the utility model are: compared with the existing pipe expanding device, the pipe expanding device comprises a bottom plate, a jacking pipe, a mandrel, a handle and a rubber sleeve;

The end of the handle is provided with a cam;

The rubber sleeve is located between the top pipe and the bottom plate;

The handle is located above the bottom plate;

The mandrel is slidingly matched with the bottom plate, the rubber sleeve and the top pipe, one end of the mandrel is hinged with the cam, and the other end of the mandrel is provided with a stopper;

The boot and top tube are located between the stop and the base plate.

When the utility model is used, the rubber sleeve is inserted into the pipe, the handle is turned, and the mandrel pulls the block to move through the lever principle, so that the rubber sleeve is squeezed and deformed, and the rubber sleeve is pushed along the radial direction of the mandrel. Wall deformation. When the cam rotates to different positions, the deformation amount of the rubber sleeve is different, and the profile line of the cam can be used to control the strength of the expansion tube, and then control the deformation amount of the expansion tube. And before the tube expansion starts, the rubber sleeve is in a contracted state, which can enter the tube more conveniently, and you can choose to expand the pipeline at different positions without the need for continuous expansion of the pipeline.

Description of drawings

Fig. 1 is the structural front view of the present utility model;

Fig. 2 is the structure top view of the present utility model;

Figure 3 is a structural cross-sectional view of the rubber sleeve of the present invention when it is in a compressed state;

Figure 4 is a structural cross-sectional view of the rubber sleeve of the present invention when it is in a stretched state;

Parts, parts and numbers in the picture: bottom plate 1, support tube 2, rubber sleeve 3, top tube 4, stopper 5, mandrel 6, wear-resistant plate 7, handle 8, cam 801.

Detailed ways

The utility model will be further described below in conjunction with the accompanying drawings.

As shown in Figures 1 to 4, the tube expanding device includes a bottom plate 1, a jacking tube 4, a mandrel 6, a handle 8 and a rubber sleeve 3;

The end of the handle 8 is provided with a cam 801, and the profile of the cam 801 can be selected according to the demand of the expansion tube deformation amount and the expansion tube strength;

The rubber sleeve 3 is located between the top pipe 4 and the bottom plate 1;

The handle 8 is located above the bottom plate 1;

The mandrel 6 is slidingly matched with the bottom plate 1, the rubber sleeve 3 and the top tube 4, one end of the mandrel 6 is hinged with the cam 801, and the other end of the mandrel 6 is provided with a block 5; the block can be a block, a nut, a block Plates and other parts, the function is to push the top pipe 4 to move.

The rubber sleeve 3 and the top pipe 4 are located between the block 5 and the bottom plate 1 .

In order to prevent the bottom plate 1 from being worn when the cam 801 rotates, a wear-resistant plate 7 is also included, and the wear-resistant plate 7 is arranged between the cam 801 and the bottom plate 1 . The wear-resistant plate is made of wear-resistant materials such as rubber and plastic.

In order to save the stroke of the mandrel 6, the present invention also includes a support pipe 2, which is connected to the bottom plate 1 and communicated with the bottom plate 1, the support pipe 2 is located between the rubber sleeve 3 and the bottom plate 1, the mandrel 6 and the support pipe 2 Slip fit. The longer the support tube 2 is, the shorter the stroke of the mandrel required for the rubber sleeve 3 to achieve the same amount of deformation, and the material of the rubber sleeve 3 is also saved.

In order to facilitate the disassembly and assembly of the support pipe 2, the support pipe 2 and the bottom plate 1 are connected in a detachable manner such as bolt connection, screw connection or snap connection.

In order to facilitate fixing the device on the operating table, the bottom plate 1 is provided with connecting holes. The unit can be fixed in place as a whole using bolts through the attachment holes.

In order to avoid slippage during manual operation, the handle 8 is provided with anti-skid threads.

In order to facilitate disassembly and assembly of the block 5, the block 5 and the mandrel 6 are detachably connected by means of threads, snaps or pin connections.

In order to make the structure of the utility model simple, easy to maintain and disassemble, the stopper 5 is a nut, and the nut is connected with the mandrel 6 by thread.

Claims (8)

1. The expand tube device, its characterized in that: comprises a bottom plate (1), a top pipe (4), a mandrel (6), a handle (8) and a rubber sleeve (3);

a cam (801) is arranged at the end part of the handle (8);

the rubber sleeve (3) is positioned between the top pipe (4) and the bottom plate (1);

the handle (8) is positioned above the bottom plate (1);

the mandrel (6) is in sliding fit with the bottom plate (1), the rubber sleeve (3) and the top pipe (4), one end of the mandrel (6) is hinged with the cam (801), and the other end of the mandrel (6) is provided with a stop block (5);

the rubber sleeve (3) and the top pipe (4) are positioned between the stop block (5) and the bottom plate (1).

2. A tube expansion device according to claim 1, wherein: the wear-resisting plate (7) is arranged between the cam (801) and the base plate (1).

3. A tube expansion device according to claim 1, wherein: still include stay tube (2), stay tube (2) are connected and communicate with bottom plate (1), and stay tube (2) are located between gum cover (3) and bottom plate (1), dabber (6) and stay tube (2) sliding fit.

4. A tube expansion device according to claim 3, wherein: the supporting tube (2) is detachably connected with the bottom plate (1).

5. A tube expansion device according to any one of claims 1 to 4, wherein: the bottom plate (1) is provided with a connecting hole.

6. A tube expansion device according to claim 4, wherein: the handle (8) is provided with anti-skid threads.

7. A tube expansion device according to claim 4, wherein: the stop block (5) is detachably connected with the mandrel (6).

8. A tube expansion device according to claim 7, wherein: the stop block (5) is a nut, and the nut is in threaded connection with the mandrel (6).

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