JPH0242796Y2 - - Google Patents

Description

[Detailed description of the invention] Industrial field of application This invention involves superimposing multiple cylinders in order to draw the pipes of punched wells in a straight line, and then clamping the pipes inserted into the cylinders and pushing them upward using hydraulic pressure. This invention relates to a lifting device for extracting punched well pipes.

Conventional technology Conventionally, the pipes (metal pipes) of punched wells are pulled out by assembling logs in a Sasuni shape, attaching a chain block to the intersection of the logs, attaching a wire hanging from the chain block to the pipe, and driving the chain block to pull it out. was. In addition, the current state of the art is to use a yunbo to pull out pipes using the pressure of the yunbo.

Problems to be Solved by the Invention However, in the conventional work of pulling out punched well pipes, there is a chain block for pulling out the metal pipe once it has been driven in due to the frictional force caused by the earth pressure or water pressure in the soil. However, there was a problem in that the metal tube was bent and could not be used again, requiring a great deal of labor and expense.

Means for solving the problem This idea was made by focusing on the problems of the conventional method, and it involves fitting an appropriate number of short cylindrical bodies to the pipe depending on the length of the pipe exposed above the ground. The purpose is to push the entire cylindrical body upward from below using hydraulic pressure to solve the above problem.

Therefore, the structure of the present invention for achieving the above object will be explained using FIGS. 1 to 4 corresponding to the embodiments. An adjustable C-shaped tightening outer ring 3 is attached to the upper end of the freely adjustable support column 2, a cylindrical body that can be opened and closed is mounted inside the tightening outer ring 3, and its upper edge protrudes from the outer ring 3. A stepped portion A is formed between the ring 3 and the upper end edge of the cylinder, and a plurality of intermediate cylinders into which the stepped portion I fits are sequentially placed, and a C-shaped clamping ring 10 is attached to the upper end surface of the cylinder. It is placed and formed so that it can be tightened.

Function: Depending on the length of the punched well pipe exposed from the ground, a plurality of circular ring bases and intermediate cylinders are sequentially stacked around the pipe, and the lower circumference of the pipe socket is placed on top of the cylinder at the top end. The clamping ring 10 tightened on the surface is placed, and by driving the hydraulic pump provided on the underside of the base 1, the tube and the ring are pushed up from below together with the base, and the pipe is pulled straight out of the soil. It is something to pull out.

Embodiments Hereinafter, embodiments of this invention will be described in detail with reference to the drawings.

Reference numeral 1 denotes a base, which is formed into a circular ring shape and has an insertion hole 11 in the center thereof. Reference numeral 2 denotes a support, which is erected so as to be swingable so as to face the upper surface of the base 1. Reference numeral 3 denotes a tightening outer ring, which is fixed to the upper end portions of the pillars 2, 2. The outer ring 3 is a C-shaped outer ring having a notch 12, and a tightening rod 13 is attached across the notch 12. crosslink. Reference numeral 4 denotes an inner ring with a hinge 14 that can be opened and closed, and the inner ring 4 is tightened by the tightening rod 13 from the outer circumference by the tightening outer ring 3. A stepped portion A is formed between the inner ring 4 and the outer ring 3. Reference numeral 5 is a cylinder, which is configured to be openable and closable, and has a tightening rod 15 installed thereon so that it can be tightened, and is integrally formed with a stepped washer on the outer peripheral edge of the lower end of the cylinder 5. The inner periphery of washer B and the stepped portion A are adapted to engage with each other. 6,7
is an intermediate cylinder, and fitting portions E and H are formed within the protruding edges C and D of the outer peripheral edges of the lower ends of the cylinders 6 and 7. Reference numeral 8 denotes a tightening inner ring, which is formed into a C-shape from the left and right by hinges, and a C-shaped tightening outer ring 9 of the same shape is attached to the outer periphery.
A tightening rod 16 is installed in the notch of the tightening outer ring 9 and tightened. 17 is a punching pipe, 1
8 is a socket attached to the pipe 17, and 19 is a hydraulic pump that moves the operating rod 20 up and down.
21 is a sleeper 22 is on the ground.

Next, the effect will be explained. According to the length of the punched well pipe 17 that has been driven into the soil and protrudes from the ground 22, sleepers 21 are arranged in parallel on the left and right sides of the pipe 17, and the hydraulic pump 19 is mounted on the sleepers 21. Then, insert the upper end of the pipe 17 into the insertion hole 11 of the base 1, place it on the upper surface of the pump 19, insert the cylinders one after another as shown in FIG. 4, and tighten the inner tightening ring 8 on the upper end surface. The pipe 17 is tightly fitted to the lower peripheral surface of the socket 18 and fixed by tightening with the tightening rod 16 of the outer tightening ring 9. .
Next, to lift this, hold the operating rod 20 with both hands and move it up and down, and use the hydraulic pressure of the hydraulic pump 19 to push up the cylinder stacked on the top surface together with the base 1 from below, and the pipe 17 will be underground. is gradually pulled out. In this case, since the sockets on the pipe 17 also have a locking function and are screwed together at regular intervals, the sockets that have already been pulled out during the pulling operation and are not used are removed from the pipe one by one and placed under the next socket. Similar to the above, a cylinder is attached and the pipe is pulled out intermittently.

FIG. 5 is a diagram showing an embodiment of this invention. In this embodiment, the cylinder 5 and intermediate cylinders 6 and 7 shown in FIG. A ring ring 10 is placed on top of which the support tube 23 is placed continuously, and its purpose and function are the same as those shown in FIGS. 1 to 4.

Effects of the invention As mentioned above, in this invention, the outer periphery of the pipe 17 is surrounded by a plurality of rings and cylindrical bodies, so that the pipe does not bend like in the past during the work of pulling the pipe out of the soil. In addition to being able to always pull out the pipe in a straight line, the support 2 on the base 1 is swingably installed according to the inclination angle of the pipe to be pulled out, so the ring and cylinder also move together. The extraction work is easy and smooth, and there are practical benefits in that it is quick, saves labor, and allows pipes to be reused.

[Brief explanation of the drawing]

The drawings show an embodiment of the invention, in which Fig. 1 is a perspective view of the device of the invention, Fig. 2 is an exploded view of the device of the invention, and Fig. 3 is a plan view of the base of the invention.
FIG. 4 is a partially cutaway explanatory view showing the device of the present invention in use, and FIG. 5 is a perspective view showing another embodiment of the invention. 1... Circular base, 2... Support, 3... Outer tightening ring, 4... Inner ring, 5... Cylinder, 6, 7... Intermediate cylinder, 8... Inner tightening ring, 9... ...Tightening outer ring, 10...
Clamping ring, 11... Hydraulic pump, A... Stepped section, B...
Washer, C, D... ridge, H, H... fitting part.

Claims (1)

[Claims for Utility Model Registration] 1. An adjustable C-shaped tightening outer ring 3 is attached to the upper end of the support column 2 which is erected on the circular ring base 1 so as to face each other in a swinging state.
A stepped portion A is formed between the outer ring 3 and the inner ring 4 by fixing an inner ring 4 that can be opened and closed within the ring 3, and a stepped portion A is formed so that the inner ring 4 can be tightly attached to the stepped portion A. A plurality of intermediate cylinders are fitted with an openable and closable cylinder 5 having a washer RO around the outer periphery of the lower end, and have fitting parts E and H on the upper end edge of the cylinder 5 within the projecting edges C and D of the lower outer periphery. 6 and 7 are engaged, and a clamping ring 10 is placed on the upper end surface of the clamping ring 10, which is formed so that it can be freely tightened with a clamping outer ring 9 from the outer periphery of a clamping inner ring 8 to which a hinge is attached. 1. A device for extracting a punched well pipe, characterized in that it is configured to be lifted upward from below by a hydraulic device. 2. The punched well pipe extracting device according to claim 1, which is characterized in that a hydraulic pump 19 is used as the hydraulic device.