JPH035480B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to an intra-pipe movable propulsion device used in a propulsion construction method in which pipe bodies are laid linearly or curved along a planned laying route.

<Conventional technology> Medium push device 3 conventionally used in the tube propulsion method
As shown in FIG. 8, the tube 0 was installed between the end faces of the adjacent hume tubes TF and TR at a specific location in the tube row.

<Problems to be Solved by the Invention> For this reason, it is impossible to move or add an intermediate pushing device after the tube array starts to be propelled, and it is particularly difficult to propel the tubes sequentially from the straight section.

<Means for Solving the Problems> In view of the above, the present invention is an intra-pipe mobile propulsion device that freely travels within the pipe row and enables the propulsion of the pipe body at any joint. A frame with wheels installed in front and rear is connected in a telescopic manner,
A pressure jack installed on the frame presses the pressure contact member against the inner wall surface of the preceding and subsequent pipe bodies, and a plurality of propelling jacks arranged between the pressure contact members press the pressure member between the preceding pipe body and the following pipe body. Since a predetermined opening amount can be set between the end faces, when the pressure member is pressed against the inner wall surface of the pipe body using the pressure jack, the stroke of the propulsion jack is adjusted to the same extent to move the preceding pipe body to the straight section. It is possible to propel the preceding tube body toward a curved portion by adjusting the stroke so that it has a predetermined opening amount.

<Embodiments> (A) First Embodiment In the intra-tube mobile propulsion device 1 shown in FIGS. 1 and 2, 1A and 1B are connected mouth-shaped mounts. 1A
1 is a through hole drilled in the corner of the mouth-shaped pedestal 1A, 2
is a round bar-shaped guide member fixed to the opening-shaped pedestal 1B, and its tip slides inside the through-hole 1A1, so that the opening-shaped pedestal 1A and the opening-shaped pedestal 1B can be expanded and contracted. 3A and 3B are mouth-shaped mounts 1A and 1B, respectively.
3A1, 3B1 are the fixed shafts fixed to the brackets 3A, 3B, 3A
Reference numerals 2 and 3B2 denote rubber tire wheels, which are rotatably supported on fixed shafts 3A1 and 3B1, respectively. 4A and 4B are pressure contact jacks, the tail ends of which are fixed to the mouth-shaped frames 1A and 1B, and the tip ends of which are locked to pressure contact members 5A and 5B. The arcuate surfaces of the pressure contact members 5A and 5B are both formed into an arcuate shape having the same radius as the inner wall surface radius of the hume tube T, and a rubber pad (not shown) is attached thereto. 6A,
6B, 6C, 6D, etc. are propulsion jacks installed between the pressure contact members 5A and 5B. 7A and 7B are guide plates fixed to the pressure contact members 5A and 5B.

In-tube mobile propulsion device 1 having such a configuration
When the pressure jacks 4A and 4B are contracted, the rubber tire wheels 3A2 and 3B2 are used to connect the fume pipe.
It is possible to drive within TF and TR. Therefore, move the intra-pipe mobile propulsion device 1 to a predetermined position, then use the pressure jack 4A to press the pressure contact member 5A against the inner wall surface of the preceding hume pipe TF, and use the pressure contact jack 4B to press the pressure contact member 5B against the subsequent fume pipe TF. Press against the inner wall of the TR. When propelling the preceding Huum pipe TF toward a straight section, all the propelling jacks 6A to 6D are extended in the same stroke. In this way, the preceding hume tube TF is propelled along the straight portion by the stroke of the propulsion jacks 6A to 6D. Thereafter, the following hume tube TR is propelled forward by a predetermined distance using a push jack (not shown).

In addition, when the front end surface of the preceding Huum tube TF is propelled from the straight section to the starting point of the curved section, the predetermined opening calculated from the radius of curvature of the curved section, the outer diameter and length of the Huum tube In order to make a difference, the third
As shown in the figure, the propulsion jack 6 on the outside of the curve
After adjusting the opening by increasing the strokes of C, 6D, etc. by a predetermined length, the preceding hume tube TF is propelled into the curved section. Below, if you adjust the opening using the same method as this, the Huum tube TF and TR will change from the straight part to the curved part.
It is propelled into a curved section, from a curved section to a straight section, etc.

(b) Second Embodiment In the intra-tube mobile propulsion device 11 shown in FIGS. 4 and 5, 11A and 11B are connected annular frames.
12.1 is a rectangular tube member provided around the inner wall surface of the annular mount 11A, and 12.2 is a rectangular guide member provided around the inner wall surface of the annular mount 11B, the tip of which slides inside the rectangular tube member 12.1. The annular mount 11A and the annular mount 11B can be expanded and contracted by moving. 13A and 13B are brackets fixed to the bottom surfaces of annular frames 11A and 11B, respectively, and 13A1 and 13B1 are brackets 1
Fixed shaft fixed to 3A, 13B, 13A2, 13
B2 is a rubber tire wheel, each with a fixed shaft 13
It is rotatably supported by A1 and 13B1. 14A and 14B are pressure contact jacks whose tail ends are radially fixed to the annular frames 11A and 11B,
Further, the tip portions are locked to the inner circumferential surfaces of the arcuate press members 15A and 15B which are linked together. The arcuate surfaces of the pressing members 15A, 15B are both formed into an arcuate shape having the same radius as the inner wall surface radius of the hume tube T, and a rubber pad (not shown) is attached thereto.
16A, 16B, 16C, 16D, 16E, 16
F, 16G, 16H, etc. are pressure contact members 15A-15B
A propulsion jack is installed between the two via annular contact plates 17A and 17B.

In-tube mobile propulsion device 1 having such a configuration
1 is able to run inside the fume pipes TF and TR using the rubber tire wheels 13A2 and 13B2 when the pressure jacks 14A and 14B are contracted.
Therefore, the intra-pipe mobile propulsion device 11 is moved to a predetermined device, and then the pressure contact member 15A is pressed against the inner wall surface of the preceding hume pipe TF by the pressure contact jack 14A,
The pressure contact member 15B is pressed against the inner wall surface of the subsequent hume pipe TR by the pressure contact jack 14B. When propelling the preceding hume tube TF toward a straight section, all of the propulsion jacks 16A to 16H are extended in the same stroke. In this way, the preceding hume tube TF is propelled forward by the stroke of the propulsion jacks 16A to 16H. Thereafter, the following hume tube TR is propelled forward by a predetermined distance by a push jack (not shown).

In addition, when the front end surface of the preceding Huum tube TF is propelled to the starting point of the curved section, a predetermined opening difference calculated based on the radius of curvature of the curved section, the outer diameter and length of the Huum tube is set. Therefore, as shown in FIG.
After adjusting the opening by increasing the stroke of E, 16F, 16G, 16H etc. by a predetermined length,
The TF is propelled into the curve. Below, if the aperture is adjusted using the same method as this, Huyum canal TF,
TR is propelled from a straight section to a curved section, within a curved section, from a curved section to a straight section, etc.

(C) Third Embodiment In the intra-tube mobile propulsion device 21 shown in Figs. 6 and 7, 21A, 21B, 21C, and 21D are consecutive trapezoidal mounts, and 22.1 is a trapezoidal mount 21A, 21B.
22.2 is the trapezoidal pedestal 21
C, 21D is a rectangular guide member whose tip slides inside the rectangular tube member 22.1 and connects to the trapezoidal pedestal 2.
1B and the trapezoidal frame 21C are expandable and contractible. 23
A and 23B are brackets fixed to the square tube member 22.1 and the square guide member 22.2, respectively; 23A;
1 and 23B1 are fixed shafts fixed to the brackets 23A and 23B, and 23A2 and 23B2 are rubber tire wheels, which are rotatably supported on the fixed shafts 23A1 and 23B1, respectively. 24A is a fixed shaft fixed to the trapezoidal pedestal 21A and the trapezoidal pedestal 21B;
4B is a fixed shaft fixed to the trapezoidal pedestal 21C and the trapezoidal pedestal 21D, each of which has a pair of pressure contact members 25A.
and a pair of pressure contact members 25D are pivotably supported. Reference numerals 26A, 26B and 26C are pressure jacks, and the four pressure jacks 26A are connected to a pair of pressure contact members 25A and a pair of pressure contact members 25B.
The base pressure contact jack 26B connects the pressure contact member 25B and the pair of pressure contact members 25C, and the four pressure contact jacks 26C connect the pressure contact member 25C and the pair of pressure contact members 2.
5D, respectively. The arcuate surfaces of these pressing members 25A, 25B, 25C, and 25D are all formed into an arcuate shape with the same radius as the inner wall surface radius of the fume tube T, and rubber pads (not shown) are adhered thereto. 27.1 is a support rod fixed to the trapezoidal mounts 21A, 21B, 27.2 is the trapezoidal mounts 21C, 2
Pressing members 25 are connected to each other by support rods fixed to 1D.
A, 25B, 25C and 25D are supported. 28A, 28B, 28C, 28D, 28E,
28F, 28G and 28H are propulsion jacks,
Among these, the propulsion jacks 28A and 28B are connected between the pressure contact members 25A and 25B, and the propulsion jacks 28C and 28
D is between the pressure contact members 25B-25B, propulsion jacks 28E, 28F are between the pressure contact members 25C-25C,
Propulsion jacks 28G, 28H are pressure contact members 25D-
Each is constructed between 25D.

In-tube mobile propulsion device 2 having such a configuration
1 is a rubber tire wheel when pressure jacks 26A, 26B and 26C are contracted.
2, 23B2 allows it to travel inside Huyum pipe T. Therefore, the intra-pipe moving device type propulsion device 21 is moved to a predetermined position, and then, for example, the first and second
Similarly to the embodiment, the pressure jacks 26A, 26B and 26C are extended by a predetermined stroke. As a result, the pressure contact members 25A, 25B, 25C, and 25D are connected to the preceding hume tube TF and the following hume tube TR.
is pressed against the inner wall surface. and the preceding Huyum tube.
When propelling the TF to a straight section, use the propulsion jack 28
All A to 28H are extended by the same stroke.
In this way, the preceding hume tube TF is propelled forward by the stroke of the propulsion jacks 28A to 28H. Thereafter, the following hume tube TR is propelled forward by a predetermined distance by a push jack (not shown).

In addition, when the front end surface of the preceding Huum tube TF is propelled to the starting point of the curved section, a predetermined opening difference calculated from the radius of curvature of the curved section, the outer diameter and length of the Huum tube is set. Therefore, as in FIG. 3, the propulsion jack 28E on the outside of the curve,
After adjusting the opening by increasing the strokes of 28F, 28G, 28H, etc. by a predetermined length, the preceding hume tube TF is propelled into the curved section. Thereafter, if the opening is adjusted in the same manner as above, the hume tubes TF and TR are propelled from the straight section to the curved section, within the curved section, from the curved section to the straight section, etc.

<Effects of the Invention> As described above, the in-tube movable propulsion device according to the present invention uses a plurality of propulsion jacks to move the preceding hume through the pressure member in a state in which the inner wall surface of the hume pipe is in pressure contact with the pressure member by the pressure contact jack. Because the pipe is propelled into a straight section or the opening is adjusted to propel the preceding hume pipe into a curved section, the conventional intermediate push device and opening adjustment member are no longer required, and it can be moved inside the hume pipe, and installation and removal operations are easy. To make it easier,
This has the effect of significantly improving the propulsion efficiency of the pipe in the shaft.

[Brief explanation of the drawing]

1 to 7 show embodiments of the present invention, FIG. 1 is a longitudinal cross-sectional side view of the intra-tube mobile propulsion device according to the first embodiment, FIG. 2 is a view taken along the line A-A shown in FIG. 1, Third
The figure is a plan view showing a state in which the leading hume tube is propelled toward a curved section by adjusting the aperture, FIG. 6 is a vertical cross-sectional side view of the intra-tube mobile propulsion device according to the third embodiment, the left half of FIG. 7 is a view taken along C-C shown in FIG. 7, and the right half is FIG. 8 is a longitudinal sectional side view showing a conventional intermediate push device. 1, 11, 21... In-tube mobile propulsion device, 1
A, 1B, 11A, 11B, 21A, 21B, 2
1C, 21D... Frame, 2, 12, 22... Guide member, 3A2, 3B2, 13A2, 13B2,
23A2, 23B2...Wheel (rubber tire wheel), 4A, 4B, 14A, 14B, 26A, 2
6B, 26C...pressure jack, 5A, 5B, 1
5A, 15B, 25A, 25B, 25C, 25D
... Pressure contact member, 6A to 6D, 16A to 16H, 2
8A~28H...propulsion jack, TR, TF...
Tube body (Huyume's canal).

Claims (1)

[Claims] 1. A pedestal with wheels arranged in front and rear is connected in an extensible and retractable manner by a guide member, a pressure jack for pressing a pressure member against the inner wall surface of the tube body is disposed on the mount, and a plurality of propulsion jacks are provided between the pressure contact members. An in-tube mobile propulsion device characterized by a jack.