CN103924603A

CN103924603A - Tool for preventing pole pit soil collapse and method for using same to dig pole pit

Info

Publication number: CN103924603A
Application number: CN201410087588.9A
Authority: CN
Inventors: 吴新龙; 吴潇潇
Original assignee: State Grid Corp of China SGCC; Huzhou Power Supply Co of State Grid Zhejiang Electric Power Co Ltd
Current assignee: State Grid Corp of China SGCC; Huzhou Power Supply Co of State Grid Zhejiang Electric Power Co Ltd
Priority date: 2014-03-11
Filing date: 2014-03-11
Publication date: 2014-07-16

Abstract

The invention discloses a tool for preventing pole pit soil collapse and a method for using the same to dig a pole pit. The tool comprises a cylindrical tube body. Four hanging hooks are evenly distributed at the top of the tube body. The tube body comprises two cast iron retaining tubes with semi-annular cross sections. The right plane of each of the cast iron retaining tube is provided with at least two groups of clamp blocks. The left plane of each of the cast iron retaining tube is provided with vertical grooves matched with the clamp blocks. A soil discharge groove communicated to the inner side of the tube body is formed at the bottom of each vertical groove. An inlet groove allowing for the insertion or withdrawing of the corresponding clamp block us connected to the upper portion of each vertical groove. The method includes: splicing the tube body, digging the pole hole 1-1.2m in depth, placing the tube body into the pole pit, using a tool to dig the pole pit into 2m in depth in the tube body, inserting an electric pole, hooking the hanging hooks and pulling out the tube body, and back filling soil and tamping the foundation. The tool has the advantages that the tool is simple in structure and convenient in splicing, pole pit collapse can be well prevented during pole pit digging, work efficiency is increased, and labor intensity of workers is lowered.

Description

Anti-bar is cheated earth fall side's instrument and is adopted this instrument to dig the method in bar hole

Technical field

The present invention relates to anti-bar hole earth fall side's instrument and adopt this instrument to dig the method in bar hole.

Background technology

Electric pole is the necessary device installing electric wiring, particularly in rural area, a vertical wire bar need to dig a bar hole at mire, 2 meters of general bar hole needs are dark, digging under normal circumstances a par hole needs the halfhour time, but owing to being subject to underground water and geologic(al) factor impact, in digging 1 meter of left and right, just there will be landslide, will dig like this standard depth often needs time two and one-half-hours, wastes time and energy and has a strong impact on programming.

Summary of the invention

The method that the object of the present invention is to provide anti-bar hole earth fall side's instrument and adopt this instrument to dig bar hole, can effectively solve the existing bar hole of digging and often occur landslide phenomenon, the problem that affects programming and waste time and energy.

In order to solve the problems of the technologies described above, the present invention is achieved by the following technical solutions: anti-bar hole earth fall side instrument, comprise body cylindraceous, on the end face of described body, be evenly equipped with four and be convenient to the suspension hook that body is extracted out, the cast iron gear pipe that described body is semicircle annular by two cross sections forms, and each described cast iron gear Guan Jun has two of left and right plane to contact with another cast iron gear pipe;

It is the fixture block of convex or swallow-tail form that the right plane of each described cast iron gear pipe is equipped with at least two group cross sections, and one end that described fixture block is less is connected with cast iron gear pipe; The left plane of each described cast iron gear pipe is equipped with the vertical slot suitable with fixture block, and the bottom of described vertical slot has leads to mud drainage slot inside body, and described vertical slot top is connected with the inlet slot that stretches into or exit for fixture block.

Preferably, be also provided with the deep-slotted chip breaker of guiding between described mud drainage slot and vertical slot, the angle of described mud drainage slot and perpendicular is 10～20 degree; In the time that fixture block inserts vertical slot, mud residual in vertical slot can be extruded from mud drainage slot smoothly, fixture block can be coordinated and put in place with vertical slot smoothly.

Preferably, described internal diameter of tube body 40cm, high 2m; Internal diameter of tube body leaves certain surplus can insert in body electric pole smoothly, is highly the bar hole degree of depth of standard, has saved the step in workman's measuring stick hole, as long as whole body is all positioned at bar hole, bar hole just reaches depth standards.

A method that adopts anti-bar hole earth fall side instrument to dig bar hole, comprises the following steps successively:

A. two cast iron gear pipes are stitched together, the fixture block of a cast iron gear pipe is snapped in the vertical slot of another cast iron gear pipe;

B. start to excavate bar hole, in the time that bar hole is excavated to 1～1.2 meter or while occurring caving in, the body having spliced in steps A is put into bar hole;

C. in body, utilize instrument continue to excavate bar cheat 2 meters dark, then by electric pole insertion rod hole;

D. after electric pole inserts completely, utilize hook to hook suspension hook, body is extracted from bar hole, finally backfill lay a good foundation again.

Compared with prior art, advantage of the present invention is: adopt body cylindraceous, well protect the earth on side, bar hole, prevent that landslide from producing, and body adopts the cast iron gear pipe of two semicircle annulars, be convenient to transport, reduction takes up room, adopt fixture block and vertical slot to coordinate two cast iron gear pipes can firmly be spliced, mud drainage slot is set simultaneously, in the time that fixture block inserts vertical slot, mud in vertical slot can be discharged in body in mud drainage slot, and the employing of cast iron gear pipe is fixture block while is groove, increase versatility, namely any two cast irons gear pipe can be combined into a body, this apparatus structure is simple, splicing is convenient, in mining process, can well prevent bar to cheat the generation of caving in, improve operating efficiency, reduce labor strength.

Brief description of the drawings

Fig. 1 is the structural representation of the present invention anti-bar hole earth fall side instrument;

Fig. 2 is the structural representation of single cast iron gear pipe in the present invention anti-bar hole earth fall side instrument;

Fig. 3 is A place partial enlarged drawing in Fig. 2.

Detailed description of the invention

Consulting Fig. 1 is the embodiment of the present invention anti-bar hole earth fall side instrument, anti-bar hole earth fall side instrument, comprise body 1 cylindraceous, on the end face of described body 1, be evenly equipped with four and be convenient to the suspension hook 2 that body 1 is extracted out, the cast iron gear pipe 3 that described body 1 is semicircle annular by two cross sections forms, and each described cast iron gear pipe 3 all has two of left and right plane to contact with another cast iron gear pipe 3;

As shown in Figure 2 and Figure 3, the right plane of each described cast iron gear pipe 3 is equipped with the fixture block 4 that at least two group cross sections are convex or swallow-tail form, and one end that described fixture block 4 is less is connected with cast iron gear pipe 3; The left plane of each described cast iron gear pipe 3 is equipped with the vertical slot 5 suitable with fixture block 4, and the bottom of described vertical slot 5 has leads to body 1 inner side mud drainage slot 6, and described vertical slot 5 tops are connected with the inlet slot 7 that stretches into or exit for fixture block 4.

Between described mud drainage slot 6 and vertical slot 5, be also provided with the deep-slotted chip breaker 8 of guiding, described mud drainage slot 6 is 10～20 degree with the angle of perpendicular, described body 1 internal diameter 40cm, high 2m.

The method that anti-bar hole earth fall side instrument digs bar hole, comprises the following steps successively:

A. two cast iron gear pipes 3 are stitched together, the fixture block 4 of a cast iron gear pipe 3 is snapped in the vertical slot 5 of another cast iron gear pipe 3;

B. start to excavate bar hole, in the time that bar hole is excavated to 1～1.2 meter or while occurring caving in, the body having spliced in steps A 1 is put into bar hole;

C. body 1 interior utilize instrument continue to excavate bar cheat 2 meters dark, then by electric pole insertion rod hole;

D. after electric pole inserts completely, utilize hook to hook suspension hook 2, body 1 is extracted from bar hole, finally backfill lay a good foundation again.

Adopt body 1 cylindraceous, well protect the earth on side, bar hole, prevent that landslide from producing, and body 1 adopts the cast iron gear pipe 3 of two semicircle annulars, be convenient to transport, reduction takes up room, adopt fixture block 4 and vertical slot 5 to coordinate two cast iron gear pipes 3 can firmly be spliced, mud drainage slot 6 is set simultaneously, in the time that fixture block 4 inserts vertical slot 5, mud in vertical slot 5 can be discharged in body 1 in mud drainage slot 6, and 3 employings of cast iron gear pipe are fixture block 4 while are groove, increase versatility, namely any two cast irons gear pipe 3 can be combined into a body 1, this apparatus structure is simple, splicing is convenient, in mining process, can well prevent bar to cheat the generation of caving in, improve operating efficiency, reduce labor strength.

The foregoing is only specific embodiments of the invention, but technical characterictic of the present invention is not limited to this, any those skilled in the art is in the field of the invention, and the variation of doing or modification are all encompassed among the scope of the claims of the present invention.

Claims

1. anti-bar hole earth fall side instrument, it is characterized in that: comprise body cylindraceous (1), on the end face of described body (1), be evenly equipped with four and be convenient to the suspension hook (2) that body (1) is extracted out, the cast iron gear pipe (3) that described body (1) is semicircle annular by two cross sections forms, and each described cast iron gear pipe (3) all has two of left and right plane to contact with another cast iron gear pipe (3);

The right plane of each described cast iron gear pipe (3) is equipped with the fixture block (4) that at least two group cross sections are convex or swallow-tail form, and one end that described fixture block (4) is less is connected with cast iron gear pipe (3); The left plane of each described cast iron gear pipe (3) is equipped with the vertical slot (5) suitable with fixture block (4), the bottom of described vertical slot (5) has leads to body (1) inner side mud drainage slot (6), and described vertical slot (5) top is connected with the inlet slot (7) that stretches into or exit for fixture block (4).

2. anti-bar hole as claimed in claim 1 earth fall side instrument, is characterized in that: between described mud drainage slot (6) and vertical slot (5), be also provided with the deep-slotted chip breaker (8) of guiding, described mud drainage slot (6) is 10～20 degree with the angle of perpendicular.

3. anti-bar hole as claimed in claim 1 earth fall side instrument, is characterized in that: described body (1) internal diameter 40cm, high 2m.

4. the employing method that anti-bar hole earth fall side instrument digs bar hole as claimed in claim 1, is characterized in that: comprise the following steps successively:

A. two cast iron gear pipes (3) are stitched together, the fixture block (4) of a cast iron gear pipe (3) is snapped in the vertical slot (5) of another cast iron gear pipe (3);

B. start to excavate bar hole, in the time that bar hole is excavated to 1～1.2 meter or while occurring caving in, the body having spliced in steps A (1) is put into bar hole;

C. in body (1), utilize instrument continue to excavate bar cheat 2 meters dark, then by electric pole insertion rod hole;

D. after electric pole inserts completely, utilize hook to hook suspension hook (2), body (1) is extracted from bar hole, finally backfill lay a good foundation again.