JP2010059676A - Equipment insertion and collection apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an equipment insertion and collection apparatus capable of facilitating replacement and maintenance of equipment such as a transmitter, various sensors or the like to be installed in an excavator. <P>SOLUTION: This equipment insertion and collection apparatus 1 is provided with a gate 11 for opening and closing an opening part M4 formed in a bulk head M3 of the excavator, a pipe conduit 12 provided on an inner side of the bulk head M3 and communicated with the opening part M4, a ball valve 13 for opening and closing the pipe conduit 12, an insertion pipe 16 being insertable into the pipe conduit 12, the equipment 17 arranged in a front end part of the insertion pipe 16, and a pushing and pulling means 18 for giving push-out force and pull-in force to the insertion pipe 16. The insertion pipe 16 is inserted into the ball valve 13 being opened and the opening part M4 to arrange the equipment 17 on an outer side of the bulk head M3. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a device insertion / recovery device installed in an excavator or the like.

  In the construction of underground structures such as tunnel construction and boring construction, it is common to proceed with construction according to the planned alignment after accurately grasping the current position in the ground.

As a method for accurately detecting the current position (measurement point) in the ground, for example, Patent Document 1 discloses that a transmitter provided in an excavator is used for three or four reception points whose coordinates are known. An underground position detection method is disclosed in which the position of an excavator is calculated by transmitting an elastic wave and measuring the propagation time to each receiving point.
Japanese Laid-Open Patent Publication No. 2002-129893 ([0013]-[0024], FIG. 1)

  Devices such as transmitters and various sensors installed outside the excavator are vulnerable to vibrations and shocks, and are very likely to break down or break during excavation.

  Maintenance of equipment installed on the outside of such an excavation machine requires an operator to enter the chamber through a manhole provided in the bulkhead. However, it was very difficult to open the bulkhead manhole in the face where sand pressure and water pressure were applied.

  An object of the present invention is to solve the above-mentioned problems, and equipment insertion that enables easy replacement and maintenance of equipment such as a transmitter and various sensors installed in an excavator It is an object to propose a recovery device.

  In order to solve such a problem, the equipment insertion / recovery device of the present invention includes a gate that opens and closes an opening formed in a bulkhead of an excavator, and a pipe that is piped inside the bulkhead and is connected to the opening. A conduit that leads, a ball valve that opens and closes the conduit, an insertion tube that can be inserted through the conduit, devices disposed at the front end of the insertion tube, and a pushing force and a pulling force that are applied to the insertion tube. And a push-pull means for providing the device, and the insertion tube is inserted through the ball valve and the opening in an open state so that the devices are arranged outside the bulkhead. It is a feature.

According to such an apparatus insertion / recovery device, it is possible to extrude the equipment toward the face of the bulkhead, and it is possible to collect the extruded equipment inside the bulkhead.
Therefore, it is possible to repeatedly insert and remove devices, and it is possible to easily replace and maintain the devices.

  Further, a pressurizing valve for adjusting a pressure difference between the inside and outside of the bulkhead may be connected to the pipe line.

  Moreover, if the drain valve for discharging the earth and sand in the pipe line is connected to the pipe line, the inflow earth and sand in the apparatus can be discharged.

  Moreover, if a water stop means is attached to the rear end of the pipe, it is possible to prevent earth and sand from flowing into the excavator.

  According to the equipment insertion / recovery device of the present invention, it is possible to easily replace and maintain equipment installed in the excavator.

  Preferred embodiments of the present invention will be described with reference to the drawings. In the description, the same reference numerals are used for the same elements, and duplicate descriptions are omitted.

  In the present embodiment, as shown in FIG. 1, when a device such as a sound wave transmitter is arranged on the face K side from the inside of the shield machine (digging machine) M and the underground position of the shield machine M is detected. The apparatus insertion collection | recovery apparatus 1 to be used is demonstrated. In this embodiment, the device insertion / recovery device 1 is used for the shield machine M. However, the device insertion / recovery device 1 may be used for a TBM (tunnel boring machine), a propulsion unit, or the like. It is not limited to shield machines.

  As shown in FIG. 1, the shield machine M mainly includes a cutter head M1 for excavating the natural ground G, and a shield part M2 positioned behind the cutter head M1 to protect various facilities inside the shield machine M. It is composed of

The front part of the shield part M2 is partitioned by a bulkhead M3, and a chamber M5 is formed between the cutter head M1 and the bulkhead M3, in which earth and sand excavated by the cutter head M1 are temporarily deposited. .
The bulkhead M3 is formed with an opening M4 so that the devices 17 can be inserted into the face K from the shield M2 (see FIG. 2B).

The device insertion / recovery device 1 is a device that is fixed to the bulkhead M3 and that inserts the devices 17 from the opening M4 to the face K side when detecting the underground position, and collects it after measurement.
As shown in FIG. 2A, the device insertion / recovery device 1 includes a gate 11, a conduit 12, a ball valve 13, a pressurizing valve 14, a drain valve 15, an insertion tube 16, and a device 17. And a push / pull means 18 and a water stop means 19.

  The gate 11 is a member that opens and closes an opening M4 formed in the bulkhead M3 of the shield machine M, and is attached to the outer surface of the bulkhead M3. Inflow of water and earth and sand into the pipe line 12 is prevented during normal times (when the devices 17 are not pushed out).

The gate 11 includes a plate-shaped door portion 11a having an area larger than that of the opening M4, and a rail portion 11b arranged along the bulkhead M3.
The door part 11a opens and closes the opening part M4 by sliding along the rail part 11b. The configuration of the gate 11 is not limited.

  The pipe 12 is formed of a pipe body that is piped so as to communicate with the opening M4 inside the bulkhead M3, and has an inner diameter through which the insertion pipe 16 can be inserted.

  The conduit 12 includes a ball valve 13 that opens and closes the conduit 12, a pressure valve 14 that adjusts the pressure difference between the inside and outside of the bulkhead M3, and a drain valve 15 that discharges the sediment in the conduit 12. It is installed.

  The pipe 12 includes a first pipe 12a and a second pipe 12b that are integrally formed before and after the ball valve 13, and a third pipe (pressure adjusting pipe) that is connected to the rear end of the second pipe 12b. 12c is comprised, and it is comprised so that division | segmentation is possible in the connection part of the 2nd pipe line 12b and the 3rd pipe line 12c.

  A flange 12d is formed at the front end of the first conduit 12a, the rear end of the second conduit 12b, and the front and rear ends of the third conduit 12c. The first pipe 12a is fixed to the bulkhead M3 and the second pipe 12b and the third pipe 12c are fixed through the flange 12d. Moreover, the water stop means 19 is connected to the 3rd pipe line 12c via the flange 12d of the rear end.

  The ball valve 13 includes a valve housing 13a, a valve body 13b, and a lever 13c.

  The valve housing 13a is formed in a substantially spherical shape, and a spherical valve body 13b in which a through hole 13d is formed is rotatably disposed. The inner diameter of the through hole 13 d is equal to the inner diameter of the pipe line 12 and is formed larger than the outer diameter of the insertion pipe 16.

The valve body 13b is connected to a lever 13c disposed at the upper part of the valve housing 13a. By rotating the valve body 13b via the lever 13c so that the through hole 13d is aligned with the pipe line portion 13b, the pipe line 12 can be opened and the insertion pipe 16 can be pushed out (see FIG. 2B). ).
The configuration of the ball valve 13 is not limited, and a known ball valve 13 can be appropriately employed.

  The pressurizing valve 14 is a valve for adjusting the pressure in the pipe line 12. By operating the pressurizing valve 14 to pressurize or depressurize the third pipe 12c, the pressure difference between the inside and outside of the bulkhead M3 can be adjusted, and the equipment 17 can be pushed out and pulled back.

  The drain valve 15 is a valve connected to the third pipe line 12 c and discharges water and earth and sand that have entered the pipe line 12.

The insertion pipe 16 is a steel pipe that can be inserted into the pipe line 12, and a device 17 is disposed at the front end portion, and a rear end portion is connected to the push / pull means 18.
The insertion tube 16 has a length that allows it to protrude from the inside of the bulkhead M3 to the face K.

  Further, as shown in FIG. 3, a partition wall 16 a is provided at the front end portion of the insertion tube 16. A through hole 16b for the wiring 17c of the equipment 17 is formed in the partition wall 16a. The through hole 16b is subjected to a water stop process for preventing water from entering the inside of the insertion tube 16. Thus, the wiring 17c of the devices 17 is prevented from being submerged.

As shown in FIG. 2 (b), the insertion tube 16 is inserted through the ball valve 13 and the opening M4 in the opened state, and is extended to the outside of the bulkhead M3. To place.
The configuration of the insertion tube 16 is not limited and can be set as appropriate.

The equipment 17 is a transmitter disposed at the front end of the insertion tube 16.
As shown in FIG. 3, the devices 17 are disposed inside a case 17 a installed at the front end of the insertion tube 16.

  The case 17a has a plurality of through holes 17b, 17b,... Formed on the peripheral surface thereof, and is configured to be able to transmit elastic waves from the devices 17. The wiring 17c of the equipment 17 is inserted through the insertion tube 16 and extends to the wellhead side. The configuration of the case 17a is not limited, and can be set as appropriate.

The push-pull means 18 is a device that applies an pushing force and a drawing force to the insertion tube 16.
In this embodiment, it shall be comprised with a cylinder jack. In addition, the structure of the pushing / pulling means 18 is not limited, It is possible to employ | adopt a well-known means suitably.

The water stop means 19 is a member that inserts the insertion pipe 16 and prevents water and earth and sand in the pipe 12 from entering the shield part M2.
The water stop means 19 is a tubular member installed at the rear end of the pipe 12, and has an inner diameter larger than the outer diameter of the insertion pipe 16 and is configured to allow the insertion pipe 16 to be inserted.
On the inner peripheral surface of the water stop means 19, packing made of resin or the like that shields the gap with the insertion tube 16 is provided, and water is stopped when the devices 17 are arranged on the face side.

  The structure of the water stop means 19 is not limited to the above-described structure. For example, as shown in FIGS. 4A and 4B, the rear portion of the equipment insertion / recovery means 1 (pressure in FIG. What is necessary is just to select and employ | adopt from well-known water stop means suitably, such as employ | adopting casing 19 'which covers the rear part from the adjustment pipe 14a.

Next, the operation procedure of the equipment insertion / recovery means 1 will be described.
First, excavation by the shield machine M is stopped, and the position of the cutter head M1 is adjusted so that the slit or opening formed in the cutter head M1 corresponds to the position of the opening M4 of the bulkhead M3.

  Next, the drain valve 15 is closed, and the pressure adjusting valve 14 is operated to make the pressure difference in the pipe line 12 equal to the pressure difference on the face K side.

  The ball valve 13 is opened and the gate 11 is opened. And the equipment 17 is arrange | positioned at the face K side by pushing the insertion pipe 16 into the face side by the pushing / pulling means 18.

  When the equipment 17 is arranged at a predetermined position, measurement work by the equipment 17 is performed.

After the measurement, the device 17 is pulled into the bulkhead M3 by operating the push-pull means 18, and the gate 11 is closed and the ball valve 13 is closed.
The drain valve 15 is opened and water and earth and sand in the pipe line 12 are discharged.

  When performing maintenance of the devices 17 and the like, the third pipe 12c and subsequent parts are removed and maintenance is performed.

As described above, according to the device insertion / recovery means 1 according to the present embodiment, it is possible to safely insert the delicate devices 17 such as the underground radar into the face K.
In addition, since the devices 17 can be easily collected, maintenance, replacement, etc. of the devices 17 can be easily performed.

  Further, the shield machine M can be installed in a limited space at the tip. Furthermore, the space can be used effectively by removing it when not in use (other than during measurement).

Further, since it can be configured without requiring a special machine or apparatus, the manufacturing cost is low.
Any device such as sound wave, electromagnetic wave, RI, etc. can be used.

Further, in order to prevent the earth and sand from flowing into the pipe line 12 by the gate 11, the pipe 12 is prevented from being blocked by the earth and sand when the devices 17 are pushed out.
Moreover, even if water, earth or sand flows into the pipe line 12 by opening the gate 11, water or earth and sand may flow out from the pipe line 12 into the shield part M2 when the water stopping means 19 stops. It is prevented.

Further, since the ball valve 13 is provided, the conduit 12 can be completely blocked.
Since the pressure adjusting pipe and the like after the ball valve 13 can be attached and detached, it is possible to secure a work space by removing it except when necessary.

  Since the pressure inside and outside of the bulkhead M3 can be adjusted by the pressurizing valve 14, it is possible to reduce the burden at the time of pushing out and retracting the equipment 17, and the inside of the pipe line 12 by the drain valve 15 It is possible to prevent the water and earth and sand from being ejected when discharging.

  Moreover, since the equipment 17 is protected by the case 17a, it is prevented that the equipment 17 is damaged when inserted into the excavated earth and sand.

As mentioned above, although an example about a suitable embodiment of the present invention was explained, the present invention is not limited to the embodiment, and design change is possible suitably in the range which does not deviate from the meaning of the present invention.
For example, in the above-described embodiment, the pressurization valve is disposed via the pressure adjustment pipe (third pipe line), but the configuration of the pressurization valve is not limited to the above configuration. Further, the pressurizing valve may be arranged as necessary, and may be omitted.

  Moreover, the installation location of the drain valve is not limited and may be appropriately arranged. Further, the drain valve may be arranged as necessary and can be omitted. Similarly, the water stop means may be arranged as necessary.

  Further, the push-pull means, the gate, and the ball valve may be interlocked to open / close the gate, open / close the ball valve, and push / pull the insertion tube by one operation.

It is the schematic which shows the installation condition of the apparatus insertion collection | recovery means which concerns on suitable embodiment of this invention. It is a side view of the same apparatus insertion collection | recovery means, (a) at the time of collection | recovery, (b) has shown the time of insertion. It is a figure which shows the detail of the equipment of the same equipment insertion collection | recovery means, Comprising: It is an enlarged view of A part of FIG.2 (b). It is a side view which shows the modification of the apparatus insertion collection | recovery means shown in FIG. 1, Comprising: (a) is at the time of collection | recovery, (b) At the time of insertion.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Equipment insertion collection means 11 Gate 12 Pipe line 13 Ball valve 14 Pressure valve 15 Drain valve 16 Insertion pipe 17 Equipment 18 Pushing means 19 Water stop means M Shield machine M3 Bulkhead M4 Opening

Claims (4)

A gate for opening and closing the opening formed in the bulkhead of the excavator,
A pipe routed inside the bulkhead and leading to the opening;
A ball valve for opening and closing the conduit;
An insertion tube that can be inserted into the conduit;
Equipment disposed at the front end of the insertion tube;
A push-pull means for applying an extrusion force and a pull-in force to the insertion tube;
The equipment insertion and recovery apparatus, wherein the equipment is disposed outside the bulkhead by inserting the insertion pipe through the ball valve and the opening in an open state.   The apparatus insertion / recovery device according to claim 1, wherein a pressure valve for adjusting a pressure difference between the inside and outside of the bulkhead is connected to the pipe line.   The apparatus insertion / recovery device according to claim 1 or 2, wherein a drain valve for discharging the earth and sand in the pipe is connected to the pipe.   The apparatus insertion / recovery device according to any one of claims 1 to 3, wherein a water stop means is attached to a rear end portion of the pipe line.

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