JP3492845B2 - Mobile plug device for sewer sewers equipped with working equipment - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a moving work device for a pipe, which is movably loaded into the pipe and performs various operations in the pipe, and particularly to a sewer pipe applied to a sewer pipe. It relates to a moving plug device for a culvert. More specifically, the present invention provides a movable plug device for sewer pipes, which includes a plug of a rubber bag that is inserted into a flow path and is inflatable, and a work device that works with a work tool while blocking a water flow. Regarding

[0002]

2. Description of the Related Art The present applicants previously filed Japanese Patent Application No. 6-825.
No. 71, Japanese Patent Application No. 6-82572 and Japanese Patent Application No. 6-167
No. 439 (hereinafter, referred to as "prior art") is inserted into a sewer pipe through which a water flow flows, the rubber bag expands to block the water flow in the sewer pipe, and the stored water retains the pipe wall. We proposed a device for cleaning the sediment deposited on the bottom of the sand. According to these prior arts, due to its unique configuration, it is possible to carry out the removal work toward the sludge at the pipe bottom, thereby realizing an efficient and inexpensive equipment cleaning system for sewer pipes. Is.

However, in the prior art, all of them depend on the force of the flowing water flow.
The removal of adhered substances that firmly adhere to the bottom of the tube is not covered. For this reason, it is unavoidable to remove the adhered substances by hand.

[0004]

DISCLOSURE OF THE INVENTION The present invention is a further development of the above-mentioned prior art, in which the movable plug is equipped with a working tool to manually remove adhered substances firmly attached to the wall surface of the pipe. It is an object of the present invention to provide a moving plug device for a sewer pipe that can be easily carried out without going through. Further, the present invention is not limited to a sewer pipe, nor is it limited to cleaning, and it is another object to have other functions.

[0005]

The moving plug device for a sewer pipe of the present invention has the following constitution in order to achieve the above object. In other words, the main composition is sewage from which water flows.
The sewer pipe is inserted into the conduit and the rubber bag expands.
A device for closing the cross section of a hollow shaft
A stopper made of a rubber bag arranged around the shaft and the inside of the stopper.
It has a hollow shaft connected to the hollow shaft, and is arranged radially from the hollow shaft.
Front wheels, which are provided in front of and behind the stopper, and
And rear wheeled travel unit, equipped to the following (i) not to (iv)
It is characterized by comprising an operating part. (i) The front wheel-equipped traveling section is provided with the wheels
Cylindrical shaft that is connected to the hollow shaft of the running part. (ii) A rotary mount ring that is rotatably fitted onto the cylindrical shaft portion. (iii) Mounted on the rotary mount ring and mounted on its drive shaft.
Fluid actuated motor that takes the reaction force of the driven body to the cylindrical shaft.
Ta. (iv) Similarly, the fluid-operated cylinder mounted on the rotary mount ring
Operates in the direction of the pipe wall with the extension of the da
Work tool operated by. The moving plug device for a sewer pipe of the present invention is further added to the above configuration.
The plug and the hollow part of the hollow shaft of the running part with wheels.
The piping of the fluid actuating device of the actuating section is arranged in the
The cylindrical shaft of the moving part and the rotary gantry ring constitute a rotary joint,
It is characterized by In the above configuration, the fluid actuating motor, the fluid actuating cylinder, and the fluid actuating working tool as actuators can adopt any of pneumatic and hydraulic drive systems.

(Operation) In use, the moving plug device for the sewer pipe is moved to a predetermined position in the pipe, the rubber bag of the plug is inflated, the water flow is shut off, and the rotary mount ring is rotated by the fluid actuated motor. The working tool is rotationally moved to a predetermined position via the, and the working tool is set in a predetermined posture toward the pipe wall by the extension of the fluid actuated cylinder.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of a moving plug device for a sewer pipe according to the present invention will be described with reference to the drawings. (Structure of Embodiment) FIGS. 1 to 9 show a moving plug device for a sewer pipe according to one embodiment thereof. That is, FIG. 1 shows the entire structure of the moving plug device for the sewer pipe, and FIGS. 2 to 9 show the partial structures of the respective parts. In the figure, the work advancing direction (direction A) of the apparatus S is referred to as the front portion.

With reference to FIG. 1, the movable stopper device S is
A plug 1 having a hollow shaft and having an inflatable / contractible rubber bag disposed around the hollow shaft, and a hollow shaft connected to the hollow shaft of the plug are provided. Wheeled traveling section 2 provided with wheels to be arranged and arranged before and after the plug body 1.
(Front traveling portion 2A, rear traveling portion 2B) and a cylindrical shaft portion that is connected to the hollow shaft of the traveling portion 2 with wheels and has a working gas passage formed therein, and is fitted onto the cylindrical shaft portion. An operating part 3 in which a rotary drive part and a working device are mounted on a rotary gantry ring which both have an operating gas passage that rotatably communicates with the operating gas passage in the outer cylindrical shaft part, and piping for sending the operating gas to the operating part 3. System 4 and. Then, in the movable stopper device S, the index rope 7 is connected to the fixture 6 arranged at the rear portion.

The detailed configuration of each part will be described below. Plug 1 (see FIG. 1) The plug 1 includes a hollow shaft portion 10 and a bag body 11 mounted around the shaft portion 10. The shaft portion 10 has a hollow shape, and flanges 10a are stretched on both ends. The bag 11 is made of rubber and has a double cylindrical structure, and is attached by sandwiching each mounting plate 12 on the flange 10 a of the shaft 10. A working gas, usually compressed air, is sucked into the bag body 11 and expanded to a predetermined diameter. The inlet / outlet port for this purpose is attached to the bag body 11 via the attachment plate 12 / flange 10a or directly.

Wheeled Traveling Section 2 (See FIGS. 1 to 4) The wheeled traveling section 2 is attached to the front and rear of the plug 1 by attaching its mounting flanges to the mounting plate 12 of the plug 1. That is, the traveling unit 2 with wheels includes a hollow cylindrical base body 14, a mounting body 16 rotatably mounted around the cylindrical base body 14 via a bearing 15, and further, the mounting body 1.
6 and a pair of two wheel portions 17 arranged radially. The cylindrical substrate 14 has a hollow cylindrical shape, has a large diameter on the plug body 1 side, and reduces the diameter on the working portion 3 side. Mounting flanges 19 (19a, 19b) are stretched at both ends thereof, and one large-diameter flange 19a is attached to the mounting plate 12 of the plug body 1.
Abut, and are joined by bolting. The other small-diameter flange 19b abuts on the operating portion 3 side. Mounting body 16
Is externally fitted to the cylindrical base 14 via a bearing 15 and is rotatably mounted around the cylindrical base 14. Wheel part 17
Is a mounting rib 2 fixed directly to the mounting body 16.
1, a leg portion 22 having an upper portion sandwiched between the mounting ribs 21 and a wheel mounting frame 22a at the lower portion thereof, and a wheel 24 mounted to the wheel mounting frame 22a with a rotation support pin 23.

The plug 1 and the traveling section 2 with wheels are used.
Is essential to the hollow portion for accommodating the pipe 4 to the operating portion 3, and other configurations are free within the scope of the present invention as long as this is satisfied.

Actuating Part 3 (See FIGS. 1 to 3 and 5 to 9) The actuating part 3 functions as a so-called actuator, a working gas passage is formed, and is fixed directly to the traveling part 2. Cylindrical cylindrical shaft portion 25, fixed gear 26 fixed to the outside of the cylindrical shaft portion 25, and rotation in which a working gas passage that is fitted around the cylindrical shaft portion 25 and rotates around the cylindrical shaft portion 25 is formed. A gantry ring 27, a rotary drive unit 29 mainly composed of a pneumatic motor 28 mounted on the rotary gantry ring 27, and
Similarly, it includes an air cylinder 30 mounted on the rotary gantry ring 27 and a working part 32 having an air chipper 31 as a working tool (attachment) driven by a working gas, and further mounted on the front end part of the cylindrical shaft part 25. The image pickup device 34 is included. Of the above, the cylindrical shaft portion 25, the fixed gear 26, and the imaging device 34 constitute a fixed system, and the other components constitute a movable system.

(Cylindrical Shaft 25) (See FIG. 2) The cylindrical shank 25 has a hollow cylindrical shape having a predetermined wall thickness, and a rear portion thereof has a flange 36 protruding outward. The flange 36 comes into contact with the flange 19 of the cylindrical base 15 of the traveling portion 2 and is fixed with a tightening bolt 37. In the cylindrical shaft portion 25, the diameter of the hollow portion 25a is made smaller than the diameter of the cylindrical base body 14 of the traveling portion 2, so that the rear end surface of the cylindrical shaft portion 25 opens toward the hollow portion of the cylindrical base body 14. Further, the wiring to the front monitor camera is inserted through the hollow portion 25a of the cylindrical shaft portion 25. A working fluid passage 38 is formed in the cylindrical shaft portion 25. In the present embodiment, three working gas passages 38A, 38B, 38C are formed respectively. Working gas passage 38A is for a pneumatic motor, working gas passage 38B is for an air cylinder, working gas passage 3
8C is used for an air chipper. Each of the working gas passages 38 (38A, 38B, 38C) has an inlet portion 38a directed toward the rear end surface of the cylindrical shaft portion 25, and a passage hole 38b bored in the axial direction, and an outer periphery from an end portion of the passage hole 38b. To the communication hole 38c, the annular groove 38d formed in the outer periphery of the cylindrical shaft portion 25, which communicates with the communication hole 38c.
Formed from. The passage hole 38b may penetrate the cylindrical shaft portion 25 back and forth. In this case, it is plugged at the end point. The communication hole 38c and the annular groove 38d are not necessarily the passage holes 38.
Not limited to the end point position of b, it may be provided at an appropriate position on the way. Three working gas passages 38A, 38B, 38C
The four O-ring grooves 39 (39
A, 39B, 39C, 39D) have been established, and O
The ring 40 is loaded. The passage holes 38b are arranged at 120 ° intervals, but not limited to this.

(Fixed Gear 26) The fixed gear 26 has gear teeth 26a on its outer circumference, and its side surface is brought into contact with the inner side surface of the flange 36 of the cylindrical shaft portion 25, and an appropriate fixing means including welding (for example, a bolt). Fixed).

(Rotating Base Ring 27) (See FIG. 2) The rotating base ring 27 has a cylindrical shape and is rotatably fitted to the cylindrical shaft portion 25. Communication holes 42 (42A, 42B, 42C) are opened in the rotary mount ring 27 at positions corresponding to the three annular grooves 38d of the cylindrical shaft portion 25 so as to exchange the working gas. The cylindrical shaft portion 25 and the rotary gantry ring 27 are provided with front and rear rotary bearings 43 and 44 to facilitate the rotation thereof.
In addition, retaining members 45, 46, and 47, which prevent the bearings 43 and 44 from retaining and restrict the axial movement of the bearings 43 and 44, are arranged.

(Rotation Driving Unit 29) (See FIG. 2) The rotation driving unit 29 is operated by the supply of the working gas from the working gas passage 42A, and the rotary shaft 28a of the pneumatic motor 28. And a gear 49 fixed to the.

(Working unit 32) (See FIG. 3) The working unit 32 is provided with the pneumatic motor 2 in the rotary mount ring 27.
The operation mechanism of the air cylinder 30 and the air chipper 31 is attached via the attachment ribs 51 arranged symmetrically with respect to FIG. That is, the swing arm 53 is attached to the tip of the attaching rib 51 via the pin 52, and the piston rod 30a of the air cylinder 30 pivotally attached to the attaching rib 51 is pivotally attached to one end of the swing arm 53. A tension spring member 54 having one end fixed to a mounting rib 51 is pivotally attached to the other end of the swing arm 53. The air chipper 31 is attached to the swing arm 53 with or without the attachment member 55. In the illustrated example, 54 is a tension spring member,
It may be a compression spring.

(Imaging Device 34) The imaging device 34 is attached to the front end of the cylindrical shaft portion 25 via an appropriate attachment member 57. The image pickup device 34 is of an electric type, its camera head is capable of wide-angle and / or swinging, and monitors the tip position of the working part 32, in particular, the chipper 31. Then, like the piping system 4, the electric wiring is inserted through the inside of the hollow shaft of the moving plug device S for the sewer pipe.

Piping system 4 The piping system 4 is composed of three working gas pipes 4A, 4B, 4C for sending working gas to the respective actuating devices 28, 30, 31 of the actuating section 3. The starting ends of these piping systems 4 are guided to the working gas pressure generator, pass through the hollow shafts of the plug 1 and the traveling part 2 with wheels, and their ends are joined to the inlet part 38a of the working gas passage 38. To be done.

(Operation of the moving plug device S for the sewer pipe) The constituent parts of the moving plug device S for the sewer pipe of the present embodiment operate as follows. In the plug 1, the working gas is sucked into the rubber bag 11 and expanded to a predetermined diameter. In the traveling unit 2 with wheels, the wheels 24 move along the pipe wall, move the moving plug device S for the sewer pipe in the pipe axial direction, and hold the shaft portion 10 at the center of the pipe P. In the operating portion 3, the working gas is sent to the pneumatic motor 28 through the working gas passages 38A and 42A, the rotation of the pneumatic motor 28 causes the gear 49 to rotate, and the fixed gear 26 receives a reaction force. The rotary mount ring 27 rotates around the cylindrical shaft portion 25. Further, the working gas is sent to the air cylinder 30 through the working gas passages 38B and 42B, and the piston rod 30a of the working gas is expanded and contracted to push the chipper 31 in the outer diameter direction against the spring biasing force of the tension spring member 54. When the working gas of the air cylinder 30 is discharged, the chipper 31 returns to the original state by the spring biasing force of the tension spring member 54. Working gas passage 3
The working gas is sent to the chipper 31 via 8C and 42C, and the tapping rod 31b moves back and forth. Rotating mount ring 27
In the rotating state of the cylinder shaft portion 25 and the rotary mount ring 27.
Since, and constitute a rotary joint, the working gas is constantly supplied to operate the pneumatic motor 28, the air cylinder 30, and the air chipper 31.

(Operation / Effect of Embodiment) The cleaning work inside the sewer pipe, which is performed by using the moving plug device S for the sewer pipe of this embodiment, will be described. Figure 1
Shows this working state, in which a solidified substance T adheres to the pipe bottom of the sewer pipe P buried in the ground, and running water flows down into the pipe P. Further, an air supply device including an air compressor connected to the moving plug device S for the sewer pipe is arranged in the above-ground portion outside the drawing.

The following is a description based on the work procedure. (1) The main plug device S for the sewer pipe is carried in from the human hole on the upstream side of the sewer pipe P to be cleaned. That is,
In this moving sewer pipe moving device S for sewer, the plug 1, the traveling part with wheels 2 and the operating part 3 are separated from each other, and are sequentially carried in from the manhole from the operating part 3, and then the manhole part or the manhole. It is assembled in the sewer pipe including the parts.

(2) The pipe system 4 is connected to the connecting portions of the pipes of the respective actuating devices 28, 30, 31 of the main sewer pipe movable plug device S, and then the main sewer pipe movable plug device is connected. S is advanced to the predetermined position of the pipe P toward the downstream side.

(3) Compressed gas is supplied to the rubber bag 11 of the plug 1 to expand the rubber bag 11 and close the pipe P. As a result, the water flow that flows down the sewer pipe P is blocked by the rubber bag 11, and the water level on the upstream side rises.

(4) While monitoring by the monitor camera 34, the pneumatic motor 2 is moved so that the chipper 31 comes to the position of the fixed object T.
8 is actuated, and thereafter, working gas is sent to the air cylinder 30 to extend the piston rod 30a thereof. In this state, the chipper 31 is operated to crush the adhered material T with the tapping rod 31b.

(5) The working gas in the rubber bag 11 of the stopper 1 is slightly discharged, so that the adhered matter T crushed by the outflow of the stored water blocked by the rubber bag 11 is pushed downstream.

(6) For the adhered matter T further downstream, the above-mentioned process
(2) to (5) are repeated to remove the adhered substance T.

A moving plug device S for a sewer pipe of this embodiment
According to the above, the adhered matter T accumulated in the sewer pipe P is crushed and removed by the chipper 31, and the crushed pieces are washed away by the blocking action and the flow-down action of the plug body 1, so that the cleaning work can be performed without manpower. it can. Further, by the operation of the rotation drive unit 29, the chipper 31 can be moved to any position, and the versatility of the work can be ensured regardless of the position of the fixed object T. Furthermore, each actuating device in the actuating portion 3 is actuated by the working gas, and only the feeding passage (outgoing route) is sufficient.
The passage structure is simplified and the mechanism is simplified. in addition,
Does not cause environmental pollution.

The present invention is not limited to the above embodiments, and various design changes can be made within the scope of the basic technical idea of the present invention. That is, the following aspects are included in the technical scope of the present invention. 1) In the operating part 3, connect the pipe 4 to the hollow part 2 of the cylindrical shaft part 25.
It is possible to adopt a mode in which it is guided to the front end portion via 5 and is connected to the inlet portion of the working gas passage 38 provided in the front end surface. 2) In the embodiment, the working gas is used, and the working gas passage 38
Was only on the outward path, but the actuators (motor, cylinder,
It is also possible to adopt hydraulic drive for the work implement, and in this case, the working fluid passage is made to be a forward path and a return path. 3) In the rotary drive unit 29 of the operating unit 3, the fixed gear 2 is replaced by a roller body instead of the gear 49 mounted on the rotary shaft 28a.
It is possible to adopt a mode in which a disk body that contacts the roller body is used instead of No. 6. Alternatively, the roller body may directly contact the outer circumference of the cylindrical shaft portion 25. 4) In the working unit 32, the tension spring 54 is not always necessary and can be omitted if the cylinder 30 has a returning mechanism. 5) The chipper 31 as a work implement can be replaced according to various work purposes. That is, a drilling machine is attached when making a perforation on a pipe wall, and a marking machine is attached when making a marking on a pipe wall.

[0030]

According to the moving plug device for a sewer pipe of the present invention, the adhered matter accumulated in the sewer pipe when the chipper is attached is crushed and removed by the chipper, and the plugging action and The falling action pushes away the crushed pieces, and cleaning work can be performed without human intervention. Also, the operation of the rotary drive allows the chipper to move to any position,
The versatility of the work is ensured regardless of the position of the fixed matter. Further, the supply of the working fluid to each fluid actuating device (actuator) of the actuating section is made smooth by the cylindrical shaft section and the rotary mount ring which constitute the rotary joint, and pneumatic driving and hydraulic driving can be realized.

[Brief description of drawings]

FIG. 1 is a partial cross-sectional side view showing the overall configuration of an embodiment of a moving plug device for a sewer pipe of the present invention.

FIG. 2 is an enlarged cross-sectional view of a main part.

FIG. 3 is another enlarged cross-sectional view of the main part.

FIG. 4 is a view on arrow IV in FIG.

5 is a sectional view taken along line VV of FIG.

FIG. 6 is an enlarged view of the image pickup apparatus.

FIG. 7 is a side view of a cylindrical shaft portion.

FIG. 8 is a vertical cross-sectional view of a cylindrical shaft portion (cross-sectional view taken along the line IIX-IIX in FIG. 9).

9 is a sectional view taken along line IX-IX in FIGS. 7 and 8. FIG.

[Explanation of symbols]

S: Moving plug device for sewer pipe, P ... Sewer pipe, 1 ...
Plug body, 2 ... Wheel running part, 3 Actuating part, 10 Hollow shaft (plug), 11 ... Rubber bag, 14 Hollow shaft (wheel running part), 25 Cylindrical shaft part, 27 ... Rotating mount Ring, 28 ... Fluid operated motor, 30 ... Fluid operated cylinder, 31 ... Working tool (chipper)

Continuation of front page (56) Reference JP-A-4-83034 (JP, A) JP-A-7-291126 (JP, A) JP-A-2-74735 (JP, A) JP-A-8-13604 (JP , A) JP-A-6-341163 (JP, A) JP-A-7-90921 (JP, A) (58) Fields investigated (Int.Cl. ⁷ , DB name) E03F 9/00 B08B 9/04

Claims (5)

(57) [Claims] 1. Inserted into a sewer pipe where water flows down,
In a device for closing the cross section of a sewer pipe by expansion of a rubber bag, a plug having a hollow shaft and made of a rubber bag arranged around the hollow shaft, and a hollow shaft connected to the hollow shaft of the plug body. A front and rear wheel-equipped traveling section disposed in front of and behind the stopper, and (i) disposed in front of the front wheel-equipped traveling section. With the wheel
A cylindrical shaft portion connected to the hollow shaft of the running portion, and (ii) the cylinder.
A rotating gantry ring rotatably fitted on the shaft portion, (iii) the
A drive unit attached to the rotary mount ring and attached to its drive shaft
A fluid operated motor for the take reaction forces on the cylindrical shaft portion, the (iv)
It is mounted on the rotary base ring and extends the fluid working cylinder.
With a long working posture toward the pipe wall, by fluid operation
A moving plug device for a sewer pipe , comprising: an operating part having an operating work implement . 2. Inserted in a sewer pipe where water flows down,
In a device for closing the cross section of a sewer pipe by expansion of a rubber bag, a plug having a hollow shaft and made of a rubber bag arranged around the hollow shaft, and a hollow shaft connected to the hollow shaft of the plug body. A front and rear wheel-equipped traveling section disposed in front of and behind the stopper, and (i) disposed in front of the front wheel-equipped traveling section. With the wheel
A cylindrical shaft portion connected to the hollow shaft of the running portion, and (ii) the cylinder.
A rotating gantry ring rotatably fitted on the shaft portion, (iii) the
A drive unit attached to the rotary mount ring and attached to its drive shaft
A fluid operated motor for the take reaction forces on the cylindrical shaft portion, the (iv)
It is mounted on the rotary base ring and extends the fluid working cylinder.
With a long working posture toward the pipe wall, by fluid operation
A work implement that operates , and an operating part including: a pipe of a fluid actuating device of the operating part is arranged in a hollow part of the hollow shaft of the stopper and the traveling part with wheels. A movable plug device for a sewer pipe, characterized in that the cylindrical shaft portion and the rotary gantry ring constitute a rotary joint. 3. The moving plug device for a sewer pipe according to claim 1, wherein the work implement is a chipper. 4. The moving plug device for a sewer pipe according to claim 1, wherein the work implement is a punching machine. 5. The moving plug device for a sewer pipe according to claim 1, wherein the work implement is a marker.