JP3099148U - Underground pipe extraction tool - Google Patents

Abstract

[PROBLEMS] In a geological survey, a number of metal pipes for investigation must be buried in the ground, and the buried pipes must be pulled out at the end of the survey. Conventional large-scale tools and machines are inferior in mobility and efficiency and have a large economic burden. Therefore, tools that can be used more easily and reduce the burden on workers have become necessary.
The present invention comprises a buried pipe, a hook handle, and a lever. Hook claw 2a of hook handle 2 is hooked into elongated hole 3b of buried pipe 3, and handle 1a is pushed down by fulcrum shaft 1b which sandwiches groove 2c of hook handle 2 between tip end portion 1j and buoy block 1e. A force is applied to the working shaft 1h based on the principle of leverage, and the buried pipe 3 is pulled out. As described above, the use of the three tools not only reduces the burden on the worker, but also solves the problem of efficiency and economy without requiring an energy source such as electricity.
[Selection diagram] Fig. 1

Description

Detailed description of the invention

The present invention relates to a tool for extracting a metal pipe buried in the ground using the principle of leverage and the like, which is used for a geological survey.

The rules on geological surveys have changed this time, and it is necessary to bury a large number of survey pipes of about 500 mm in length and pull them out, and there were large tools and machinery when pulling out survey pipes buried deep underground. However, there was no special tool when the ground was shallow and the ground was hard.

Issues that the device is trying to solve

In the operation, many buried pipes need to be pulled out, and large tools and machines are economically burdensome and inefficient and inefficient. In addition, using ready-made tools such as scoops and pliers puts a heavy burden on workers and takes time. Therefore, by using a combination of a buried pipe, a hook handle, and a lever, it is intended to reduce the burden on the operator and to solve the above-mentioned disadvantages safely.

Means for solving the problem

The present invention consists of three parts: a buried pipe for inspection, a hook handle, and a lever. A plate is provided on the top of the buried pipe, and a hook hole is formed in the plate so that a hook of the hook handle can be inserted. In addition, there are several grooves in the pillar body of the hook handle, and the pillar body is sandwiched between the buoy block at the same time as the rotating claw of the lever enters the groove of the hook handle, pulling the buried pipe according to the principle of lever. The problem is solved by unplugging.

Hereinafter, embodiments will be described with reference to the accompanying drawings. Reference numeral 1 denotes a metal lever. Reference numeral 2 denotes a metal hanging handle. Reference numeral 3 denotes a metal buried pipe.

At the beginning of the work, the buried pipe 3 is already buried. Holding the handle 2d of the hooking handle 2, inserting the guide 2b into the inspection hole 3d of the plate 3a, then inserting the hooking claw 2a into the two long holes 3b of the plate 3a and rotating the handle 2f, the plate 3a The hook 2a enters between the plate 3a and the ground by the chamfered portion 3c provided at the bottom, so that the buried pipe can be pulled out.

FIG.

reference. At this point, the lever 1 is used if the handle 2f is not pulled out easily by hand.

The lever 1 has a rotating claw 1g that rotates by the rotating claw shaft 1f.

FIG.

The reference rotary claw 1g is gently rotated upward with a fingertip, the support main body 2g of the hook handle 2 is sandwiched between the buoy block 1e, and the tip round portion of the rotary claw 1g is fitted into the groove 2c of the hook handle 2. . Since the upper end of the groove 2c is an edge 2e and the lower side is a taper 2d.

FIG.

When the handle 1a of the lever 1 is depressed downward by entering the rounded end 1j of the rotating claw 1g, the fulcrum shaft 1b is strongly caught on the edge 2e of the groove 2c by the lever principle, and the hooking handle 2 is pulled up. At the same time, the buried pipe 3 is withdrawn from the ground. Further, by sequentially moving to the lower groove 2c and returning the handle 1a of the lever 1 upward, the tip round portion 1j of the rotating claw 1g is easily separated by the tapered portion 2d of the groove 2c, and the transition to the lower groove 2c is performed. Will be possible. Furthermore, in order to make this operation smoother, a rotating force is applied to the rotating claw 1g and the rotating claw shaft 1f lightly by a spring 1i in a rotating direction sandwiching the groove 2c.

The effect of the invention

As described above, in the present invention, the buried pipe, the hook handle, and the lever are used to pull out with only the strength using the hook handle when the ground is soft, and use the lever further when the ground is hard. Can be easily pulled out by the principle of As a result, mobility, efficiency, and economy are superior to large-scale tools and machines, and physical fatigue of the operator can be greatly reduced.

FIG. 2 is a perspective view showing an embodiment of the underground pipe pulling tool of the present invention. It is a perspective view of a buried pipe. It is sectional drawing CC of the buried pipe long hole 3b. It is a perspective view of a hook handle. It is AA sectional drawing of a hook handle perspective view. It is BB sectional drawing of a hook handle perspective view. It is a perspective view which shows implementation of a buried pipe and a hook handle. It is a perspective view of a lever tool. It is an enlarged detailed view of a lever tool.

Explanation of reference numerals

Reference Signs 1 lever body 1a lever handle 1b fulcrum shaft 1c column 1d seat plate 1e buoy block 1f rotating claw shaft 1g rotating claw 1h working shaft 1i spring 1j tip radius portion 1k working portion holder 2 hook handle body 2a hook claw 2b guide 2c Groove 2d Taper 2e Edge 2f Handle 2g Support 3 Embedded pipe body 3a Plate 3b Slot 3c Chamfered part 3d Inspection hole 3e Pipe body

Claims (1)

This tool consists of three parts: a buried underground pipe, a hook handle, and a lever. The hook of the handle is hooked into the hole of the plate of the underground pipe, and the groove of the hook handle body support is levered. It is a tool for pulling out a pipe buried underground, characterized in that it is a tool for pulling out a pipe buried in hard ground according to the principle of leverage and that can work easily, efficiently and safely.

Images