JPH05106763A - Self-propelled pipe joining device - Google Patents

Abstract

PURPOSE:To provide a self-propelled pipe joining device which is capable of self-running along a pipe arranged in a groove open-cut from the ground surface to join pipes to each other. CONSTITUTION:A first clamping device 3, on the tip of which a pipe clamping claw 4 is provided, is fixed on one end side of a main body frame 1, and a second clamping device 5, on the tip of which a pipe clamping claw 6 is provided, is provided along slide rails 7 fixed-installed on the other end side of the main body frame 1 so that it can freely approach or separate from the first clamping device. Further, a cylinder device 8 is located between the second clamping device 5 and the first clamping device 3. Thus, the pipe clamping claws 4, 6 and the cylinder device 8 are selectively operated to allow the pipe joining device to perform both self-running operation and pipe-joining operation.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pipe joining apparatus for joining pipes arranged in a groove when laying the pipe in an open cut groove.

[0002]

2. Description of the Related Art Conventionally, when a pipe is laid in a groove excavated from the surface by the excavation method, a pipe joining device for sequentially joining pipes arranged in the excavated groove is used. The wire rope type and the one using an instrument are typical. Of these, the wire rope type is one in which a wire rope is hung over both the pipe on the side to be joined and the pipe on the side to be joined, and this is pulled by hand with a lever block or the like. Further, in the case of using a device, both pipes are mechanically clamped, and both clamp parts are drawn together by a manual jack device or the like to be connected.

[0003]

In such a conventional pipe joining apparatus, an operator enters the groove to perform work.
This is dangerous and requires skill in centering and joining both pipes.

The present invention solves the above-mentioned problems, does not pose a danger to an operator, requires no skill, and is self-propelled so that the device can be moved easily and easily. It is an object of the present invention to provide a self-propelled pipe joining device that can be implemented in any of the following.

[0005]

In order to solve the above-mentioned problems, a self-propelled pipe joining device of the present invention is provided with a first clamp device having a pipe clamp claw at its tip fixed to a body frame. A second clamp device having a pipe clamp claw at its tip is provided on the body frame so as to be movable toward and away from the first clamp device, and the second clamp device and the first clamp device or the body frame. A driving device for moving the clamp device is interposed between the two, and the driving device can be used for self-propelling of a pipe joining device for joining pipes.

[0006]

With the above construction, in the case of self-propelled, the clamp operation of the first and second clamp devices to the pipe by the respective pipe clamp claws is alternately repeated, and the first and second clamp devices by the drive device. The device can be self-propelled like a scale insect by repeating the approaching / separating operation of. Further, the pipe clamp claws of the first and second clamp devices are clamped to the pipe on the side to be joined and the pipe on the side to be joined, respectively, and the drive device is moved in the direction in which the first and second clamp devices approach each other. By driving, the pipe to be joined can be drawn to the pipe to be joined. Moreover, both pipes are easily centered by simply clamping the respective pipes with the first and second clamping devices, and no skill is required, and their work is dangerous. Nor.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view of a self-propelled pipe joining device according to an embodiment of the present invention, and FIG. 2 is a perspective view showing a state where the same self-propelled pipe joining device is applied to a pipe arranged in an excavation groove, FIG. FIG. 4 is a diagram for explaining a self-propelled operation of the self-propelled pipe joining device, and FIG. 4 is a diagram for explaining a pipe joining action by the self-propelled pipe joining device.

In FIGS. 1 and 2, reference numeral 1 denotes a main body frame, which is long along the pipe axis direction of the pipe 2 to be laid. Reference numeral 3 denotes a first clamp device having a centripetal function, which is fixed to one end of the main body frame 1, and has a pair of pipe clamp claws 4 on both sides of the lower end of the pipe, and the inside of the first clamp device 3 is appropriately arranged. The function of the tube 2 allows the tube 2 to be horizontally separated from each other.
It is configured so that it can be held and positioned. Reference numeral 5 is a second clamp device with a centripetal function provided at the other end of the main body frame 1, similarly having a pair of pipe clamp claws 6 on both sides of the lower end to sandwich the pipe. It is configured to be able to hold and position the tube 2 horizontally close to and away from each other by an appropriate mechanism therein, and to be movable along a slide rail 7 fixed to the body frame 1 in the length direction thereof. It is attached to the first clamp device 3 so that it can be moved toward and away from the first clamp device 3. A cylinder device 8 is interposed between the first clamp device 3 and the second clamp device 5, and constitutes a drive device for causing the first and second clamp devices 3 and 5 to perform the approaching / separating operation. As described later, it has both a self-propelled function and a pipe joining function. Further, the first and second clamp devices 3 and 5 are capable of automatically centering both pipes 2 when they hold different pipes 2 respectively.

Next, using the pipe joining device 9 having the above-described structure, as shown in FIG.
As shown in, in order to sequentially join the pipes 2 arranged in a line in the excavation groove 10 excavated from the ground surface, the self-propelled operation of the pipe joining device 9 that moves along the pipe 2 in the A direction, This will be described with reference to FIG. In FIG. 3 (a), the tube 2 is first clamped by the first clamp device 3 and the second clamp device 5 is unclamped. Next, FIG. 3 (b)
As shown in, the cylinder device 8 is extended and the second clamp device 5 is moved in the A direction along the slide rail 7. Next, in FIG. 3 (c), the tube 2 is clamped by the second clamp device 5, the first clamp device 3 is unclamped, and the cylinder device 8 is further contracted. As a result, the first clamp device 3 moves in the A direction together with the body frame 1. By repeating this, the pipe joining device 9
It is possible to make a worm take a worm and let it run along the tube 2.

Next, the pipe joining operation by the pipe joining device 9 will be described with reference to FIG. In FIG. 4 (a), the pipe joining device 9 is self-propelled while the receiving end of the pipe to be joined and the insertion port of the pipe to be joined are arranged to face each other. When the second clamping device 5 is located corresponding to the receiving port 11 and the second clamping device 5 is located corresponding to the insertion port 12, the first and second clamping devices 3 and 5 cause the receiving port 11 and Clamp each spigot 12. At this time,
Both tubes 2 are positioned by the respective tube clamping pawls 4, 6 of the first and second clamping devices 3, 5 and the centering is complete. Then, as shown in FIG. 4 (b), by contracting the cylinder device 8, the second clamp device 5 moves to the first clamp device 3 side along the slide rail 7 and the side to be joined. The tube insertion opening 12 is inserted into the tube receiving opening 11 on the side to be joined, and the joining of the tubes is completed.

In this embodiment, it is explained that the pipe on the side to be joined is inserted into the receiving end of the pipe on the side to be joined, but conversely, the pipe on the side to be joined is inserted. The present invention can also be applied to a case where pipes are joined by moving to the insertion port of the pipe on the side to which the receptacle is joined.

[0012]

As described above, according to the present invention, the tube clamp claws of the first and second clamp devices alternately repeat the clamp operation on the pipe, and the drive device drives the first and second clamp devices. By alternately repeating the approaching / separating operation of the clamping device, the pipe joining device can be self-propelled along the pipes arranged in a row, and the pipe clamping claws of the first and second clamping devices will be joined together. The pipe joining is performed by separately clamping the pipe on the side to be joined with the pipe on the side to be joined and driving the driving device in the direction in which the first and second clamping devices approach each other. When moving the device to the next pipe joining point, it is not necessary to put it in and out of the open groove every time to position it, and it is possible to work efficiently without danger. Are only carried out centering of both the tube to clamp the respective tube in the second clamping device has the advantage of not requiring skill.

[Brief description of drawings]

FIG. 1 is a perspective view of a self-propelled pipe joining device according to an embodiment of the present invention.

FIG. 2 is a perspective view illustrating a usage state of the self-propelled pipe joining device.

FIG. 3 is a diagram illustrating a self-propelled operation of the self-propelled pipe joining device.

FIG. 4 is a view for explaining a pipe joining operation of the self-propelled pipe joining device.

[Explanation of symbols]

 1 main body frame 2 pipe 3 first clamp device 4 pipe clamp claw 5 second clamp device 6 pipe clamp claw 7 slide rail 8 cylinder device (drive device) 10 excavation groove

Claims (1)

[Claims] 1. A first clamp device fixed to a body frame and having a tube clamp claw at its tip, and a first clamp device attached to the body frame so as to be able to approach and separate from said first clamp device, and a tube clamp claw is provided at the tip. A self-propelled drive device for moving the clamp device, which is interposed between the second clamp device having the second clamp device and the second clamp device and the first clamp device or the main body frame; Traveling pipe joining device.