JP3526406B2 - Protective cover and storage method for cable / hose for advanced equipment of small-diameter pipeline propulsion machine - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a small-diameter pipe propulsion device used for burying a communication pipe, a sewer pipe, a gas pipe, etc. in the ground using a non-excavation method that does not excavate the ground surface. The present invention relates to a method for housing cables and hoses for supplying electric power, electric signals, oil, lubricants, etc., to the side device of an underground conduit and a protective cover for protecting the cables and hoses.

[0002]

BACKGROUND ART trenchless construction method, digging a plurality of standing hole in the ground surface 11 as shown in FIG. 4, one with a falling anti tip device 13 consists of the original pressing device 14 small-diameter conduit propulsion unit installed, using the original pressing device 14 toward the other shafts among the standing pit, extruding the tip 13 into the ground 15, undoing the original pressing device 14 only at the time of extrusion 1 span, distal The underground pipe 16 is inserted between the device 13 and the push device 14, and the inserted underground pipe 16 is pushed out into the ground 15 to remove the tip device 13
The underground pipe line 16 is laid in the underground 15 between the shafts.

At the rear end of the tip device 13, the tip device 13
For propelling oil with hydraulic power, electric power and electric signals for driving, pressurized air necessary to prevent ingress of groundwater into the tip device 13 and the underground conduit 16, and liquid required for detecting the position of the tip device 13. A hose and a cable 17 are connected for the purpose of supplying silicon, a tip device 13 for propelling, a lubricant for reducing frictional resistance between the underground conduit 16 and soil, and the like.

Therefore, the tip device 13 and the former pushing device 14
When inserting the underground pipeline 16 in between, after disconnecting the hose and the cable 17 which are connected once on the side of the pushing device 14 and inserting the underground pipe 16 between the tip device 13 and the pushing device 14, It was reconnected through the cable and hose 17 in the inserted underground conduit 16. This connection work is 16 underground pipes.
It was repeated every time you inserted. Reference numeral 18 is a depth position detecting device, 19 is a power unit, and 20 is an operation control panel.

[0005]

As described above, since the cable and the hose are connected to the rear portion of the tip device of the small diameter pipe propulsion device, the underground pipe line is inserted between the tip device and the original pushing device. It is necessary to remove the cables and hoses each time the advanced equipment is propelled, pull the cables and hoses into the underground pipeline, and then reconnect them. Therefore, the work efficiency of burying the underground pipeline was reduced.

The present invention has been made in view of the above circumstances, and a cable for a tip device of a small-diameter pipeline propulsion machine for improving work efficiency when burying an underground pipeline with the small-diameter pipeline propulsion machine. It is intended to provide a hose protective cover and a storage method.

[0007]

In order to achieve the above object, a cable / hose protective cover for a tip device of a small diameter pipeline propulsion device of the present invention is connected to a tip device of a small diameter pipeline propulsion device, In a protective cover that houses cables and hoses for supplying electric power, electric signals, oil, lubricants, etc. to the advanced device, the inner wall of the crescent-shaped cross section of the protective cover is in close contact with the outer wall of the underground pipeline, the outer wall of the cover is in contact with the soil surface, having a structure for accommodating the cables and hoses connecting to the tip device between the protective cover inner and outer walls,且
One of the ends of the protective cover is a wedge-shaped connection
And a wedge-shaped connected part on the other side for connecting the protective covers
It is characterized by being provided as a mechanism .

[0008]

Further, according to the present invention, the method of storing the cable / hose for the tip device of the small-diameter pipe propulsion machine is connected to the tip device of the small-diameter pipe propulsion machine, and the electric power / electric signal / oil and slip are supplied to the tip device. in cables and hoses method accommodating supplying wood, etc., is characterized in that housed in the cable and the protective within cover with underground pipe outer wall hose.

A cable / hose protective cover for a tip device of a small-diameter pipeline propulsion device and a method for accommodating the same according to the present invention are provided with a cable / hose protective cover on an outer side surface which comes into contact with a soil surface of an underground pipeline. By storing the cables and hoses in the protective cover, the work of pulling the cables and hoses connected to the advanced equipment into the underground pipeline is abolished, and the number of cable and hose connections is reduced to reduce the cost of connecting parts. This is achieved and the supply loss at the connection part is reduced, and the work efficiency of underground pipe laying is improved.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described in detail below with reference to the drawings. FIG. 1 is a configuration explanatory view showing an embodiment of the present invention, and FIG. 2 is a protective cover according to the present invention.
An example of a bar connection structure is shown, and (a) is a protective cover configuration theory.
A cross-sectional view taken along the line CC 'of FIG. 6D, and FIG.
Side view (e) cross section, (c) cable and hose
A sectional view taken along the line D-D 'of the storage protection cover configuration diagram (f)
Show. FIG. 3 shows an example of a protective cover connection state according to the present invention.
It is a structure explanatory view shown. In the figure, 31 is a tip device,
32 is a protective cover, 33 is a cable / hose, 34 is a pusher, 35 is a drum, 36 is a control panel, 37 is a propulsion pipe, 38 is a vertical pile , 40 is a reinforcing material, 41 is a connecting portion, 42 is a
It is a connected part . That is, the tip device 3 of the small diameter pipe propulsion device.
In the protective cover 32 which is connected to No. 1 and accommodates the cable and the hose 33 for supplying electric power, electric signals, oil and lubricant to the tip device 31, the inner wall of the crescent-shaped cross section of the protective cover 32 is an underground pipe. The outer wall of the propulsion pipe 37, which is a road, comes into close contact with the outer wall of the protective cover 32 and the soil surface ,
Promotion tube 3 before Symbol cable and hose 33 is an underground pipe
7 is housed in a protective cover 32 provided on the outer wall. By attaching the protective cover 32 to the propulsion pipe 37 by hugging the cable hose 33, the cable hose 3
3 is arranged outside the propulsion pipe 37. Thus, cable hoses 33 exiting from the tip device 31 it is possible to promote the ground and Ku arranged such that through pulling the inside propulsion tube 37.

Further, in this embodiment, the protection cover 32 is attached to the propulsion pipe 37 by utilizing its elasticity, which is one of the methods for preventing the propulsion pipe 37 and the protection cover 32 from being separated during the propulsion. In order to prevent the protective cover 32 and the propulsion pipe 37 from being separated, a protective cover gripping mechanism such as fixing the protective cover 32 using a protrusion or a groove,
Alternatively, a method of attaching the protective cover 32 such as fixing with a band and a mechanism for restraining the propulsion pipe 37 may be used.

[0013] Before SL connecting portion 41 of the wedge type to either end of the protective cover 32 which outer wall is in contact with the soil surface of the protective cover 32, protecting the connected part 42 of the wedge-shaped on the other side cover 32 It is provided as a connection mechanism between them. A mechanism for connecting the first protective cover 32 to the earth pressure and tip device 31 in the ground, and connecting each protective cover 32 to the reinforcing member 40 against the pulling force for pulling the subsequent protective cover 32 group is formed. It is an example of an embodiment provided for itself. In the method of using this embodiment, the protective cover 32 itself is not subjected to an axial compressive force, and the protective cover 32 is not destroyed.

Therefore, there is no need to specify the material of the protective cover 32 itself, and either steel or plastic may be used. Further, even if a hose such as an earth-moving pipe that cannot be taken into the protective cover 32 is generated depending on the propulsion method, another cable / hose 33 can be arranged outside the propulsion pipe 37, which saves labor in the propulsion work and protects the protective cover 32.
It is possible to automatically connect hoses that cannot be taken inside.

[0015]

As described above, according to the present invention, the work of pulling the cable and the hose connected to the tip device into the underground pipeline is eliminated to improve the work efficiency, and the connection of the cable and the hose is achieved. The number of parts is reduced to reduce the cost of connecting parts, and the power, electric signals, oil,
It is possible to provide a protective cover for a cable / hose for a tip device of a small-diameter pipe propulsion device and a storage method that reduce supply loss of pressurized air, lubricant, and the like.

[Brief description of drawings]

FIG. 1 is a configuration explanatory view showing an embodiment of the present invention.

FIG. 2 shows an example of a protective cover connection structure according to the present invention .
It is a block diagram.

FIG. 3 shows an example of a protective cover connection state according to the present invention .
It is a structure explanatory view.

FIG. 4 is a configuration diagram showing a conventional small-diameter pipeline propulsion device.

[Explanation of symbols]

31 Advanced equipment 32 Protective cover 33 Cables and hoses 34 original pusher 35 drums, etc. 36 Control panel, etc. 37 Propulsion tube 38 vertical shafts 40 Reinforcement material 41 Connection 42 Connected part

─────────────────────────────────────────────────── ─── Continuation of the front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) E21D 9/06 E21B 7/04

Claims (2)

(57) [Claims] 1. Connecting to a tip device of a small diameter pipe propulsion device,
In a protective cover that houses cables and hoses that supply power, electric signals, oil, lubricants, etc. to the tip device,
The inner wall of the crescent-shaped cross section of the protective cover is in close contact with the outer wall of the underground conduit, the outer wall of the protective cover comes into contact with the soil surface, and the cable and the hose connected to the tip device between the inner wall and the outer wall of the protective cover. having a structure for housing and pre
Wedge-shaped connection part on either side of the protective cover,
A wedge-shaped connected part on the other side is a connection mechanism between the protective covers.
Protective cover of the tip device cable hoses small bore conduit propulsion unit, characterized in that it comprises a. 2. Connected to a tip device of a small diameter pipe propulsion device,
A method of storing a cable and a hose for supplying electric power, an electric signal, oil, a lubricant, etc. to the tip device, wherein the cable and the hose are provided in an outer wall of an underground conduit, and are stored in a protective cover according to claim 1. A method of storing cables and hoses for the tip equipment of small-diameter pipe propulsion machines.