JP5795784B2 - Cross section measuring device for cross pipe in bent pipe and cross section measuring method for cross pipe made using the cross section measuring device - Google Patents

Description

The present invention relates to a cross-section measuring apparatus for a cross pipe in a bent pipe and a cross-section measuring method for a cross pipe made using the cross-section measuring apparatus. More specifically, the present invention relates to a straight line between opposing vertical holes in a fluid pipe. In a bent pipe line connected in a flowing state via a transverse pipe of the same, a crossing pipe whose height and tension are adjusted is arranged in the transverse pipe between the vertical holes, and is used by being connected to the through line This invention relates to a cross-section measuring apparatus and a cross-section measuring method for a transverse pipe made using the cross-section measuring apparatus.
In particular, the present invention relates to the measurement apparatus and the measurement method that are suitable for being applied to a cross pipe of an overhanging part in a sewer pipe.

The manholes in the overlying part of the sewer pipes and the earth and sand collected in the cross pipes obstruct the circulation of the sewer, and various methods have been proposed for the removal.
However, it is obvious that the measurement for grasping the state of sedimentation in the crossing pipe is important prior to the removal of sediment, but the technology related to the measurement in the crossing pipe in the overpass has been Because of the harsh conditions, nothing has been done, and the technology for consistent measurement, measurement, and subsequent removal and cleaning work has not yet been established.
In addition, as a known example of the above-described removal method, Japanese Patent Application Laid-Open No. 10-131278 discloses a deposit in a transverse pipe by attaching a heavy heavy spherical body to a wire and moving the spherical body in a reverse flow in the transverse pipe. However, according to this, a heavy load load is applied to the line, and a load is applied to the pulley installed in the pipe opening, and damage to the pipe opening cannot be avoided. Furthermore, no specific measures are taken as to how to install the pulley at the pipe opening.
Such a problem / situation can occur not only in the sewer pipe but also in other pipes (water pipes, pipelines).

JP-A-10-131278

The present invention has been made in view of the above circumstances, and deposits (sediments) in the cross pipe between the adjacent vertical holes in the fluid pipe, particularly in the cross pipe in the overhanging part of the sewer pipe. It is an object of the present invention to provide a measuring device and a measuring method capable of accurately and quickly (in real time) measuring the state of adhesion of sediments.
For this reason, according to the present invention, a line that is movably installed with a predetermined tension from the vertical hole to the cross pipe is arranged on the line based on the intended position, the desired deflection, and the inclination angle of the line. This is based on the knowledge that this problem can be achieved by positioning the measuring device.

Specifically, the cross-section measurement apparatus for a cross pipe in a bent pipe and the cross-section measurement method for a cross pipe made using the cross-section measurement apparatus of the present invention have the following configurations.
(First invention)
1st of this invention is related with the cross-section measuring apparatus of the crossing pipe used with the communication line distribute | arranged to a curved pipe line, As described in Claim 1,
In the bent pipe line connected to the flow state through the straight transverse pipe between the opposing vertical holes of the fluid pipe line that forms the flow of fluid from the upstream to the downstream,
A cross-section measuring device for the transverse pipe used by being connected to a line that is arranged over the vertical hole and the transverse pipe and moves with an intended tension in an axial direction of the vertical hole and the transverse pipe,
Comprising a mounting plate that is connected to the through wire and a device main body fixed to the mounting plate;
The apparatus main body is
1) a frame body that is substantially box-shaped and has the mounting plate fixed to the outer surface thereof;
2) The rotation support shaft is fixed to the outer surface of the frame body, has a predetermined length, and receives a biasing action so that its distal end radially opens to abut against the inner surface of the transverse tube , maintaining a predetermined interval. Multiple measurement wings arranged radially,
3) an angle sensor for detecting the opening angle of the measuring wing;
4) an attitude sensor for detecting the attitude of the device body;
With
The length measuring wing is moved in the axial direction of the transverse tube by bringing the tip of the length measuring wing into contact with the inner surface of the transverse tube;
It is characterized by that.
The first invention is an inventive concept that is more specifically shown in the following embodiment and extracted from the embodiment.
In the first aspect of the present invention, in the movement of the cross-section measuring apparatus in the crossing tube, automatic operation is performed by an intended automatic operation program.
In the above,
1) “Fluid pipeline” includes water and sewage systems and pipelines.
2) In the operation of the main line, the fluid in the fluid pipe line is in a circulation (water flow) state, but a non-flow (non-water flow) state is not excluded.
3) The “straight line” of the transverse pipe is not limited to the horizontal, and does not exclude the inclined state.
1) The length measurement wings should be arranged radially at 120 ° intervals.
2) The measuring wings should be arranged radially at 60 ° intervals,
3) A paddle that relaxes the contact pressure with the inner surface of the tube wall is fixed to the tip of the measuring wing.
4) The length measurement wing is in a contracted state and the urging is restrained. Therefore, the length measurement wing is to be expanded with the urging released.
5) The connecting line connected to the cross-section measuring device has a pipe port protecting part made up of a bent part with a predetermined curvature at the lower end, and a rail material in which a guiding line of the connecting line is formed in the longitudinal direction, The tube port protection portion is made to face the tube port of the transverse tube, and is erected along each wall surface of the opposite vertical hole, and the wiring is connected to the rail material by each winch arranged above the compatible hole. Guiding with a predetermined tension along the guide path, adjusting the height and tension in the transverse pipe between the vertical holes,
Is an optional matter that is adopted as appropriate. Note that 1) to 5) can be combined with each other as long as there is no contradiction.

(Function)
In the use of the cross-section measuring device, the line in the crossing tube is subjected to the concentrated load of the measuring device at a position where the cross-section measuring device moves, and forms a desired deflection and inclination angle.
In other words, this cross-section measuring device applies its own weight to the line through the mounting plate, but due to its own weight and the line's own weight (buoyancy is also added), the line having the desired tension introduced. Indicates the desired amount of deflection and angle of inclination at that position.
Based on the state of the line (position information), the attitude of the apparatus main body is detected by the attitude sensor in the cross-section measuring apparatus, and the position of the reference point (zero point) of the apparatus main body is determined.
The angle sensor detects the contact state of the tip of the measuring wing and displays the cross-sectional state of the crossing tube at the reference point.
Along with the movement of the line, the cross-sectional status of each cross section of the crossing pipe is displayed.

(Second invention)
A second aspect of the present invention relates to a method for measuring a cross section of a transverse pipe in a curved pipeline, as described in claim 4,
In the bent pipe line connected to the flow state through the straight transverse pipe between the opposing vertical holes of the fluid pipe line that forms the flow of fluid from the upstream to the downstream,
Used across the vertical hole and the transverse pipe and connected to a line that moves with the desired tension in the axial direction of the vertical hole and the transverse pipe,
Comprising a mounting plate that is connected to the through wire and a device main body fixed to the mounting plate;
The apparatus main body is
1) a frame body that is substantially box-shaped and has the mounting plate fixed to the outer surface thereof;
2) The rotation support shaft is fixed to the outer surface of the frame body, has a predetermined length, and receives a biasing action so that its distal end radially opens to abut against the inner surface of the transverse tube , maintaining a predetermined interval. Multiple measurement wings arranged radially,
3) an angle sensor for detecting the opening angle of the measuring wing;
4) an attitude sensor for detecting the attitude of the device body;
A method for measuring the cross section of a transverse pipe, which is made using a cross section measuring device comprising:
The movement of the communication lines, the opening angle of the inner surface in contact with the length measuring wing tip length measuring wing said transverse tube and measures the orientation of the apparatus main body by the orientation sensor by the angle sensor, the through Process the line movement position and the measured value above, and measure the cross-section of the crossing pipe.
It is characterized by that.
The second invention is an invention concept that is more specifically shown in the following embodiment and extracted from the embodiment.
In the second invention,
1) The measurement result of the cross-sectional condition of the crossing tube is displayed as an image on the monitor.
2) The measurement in the cross-section pipe of the cross-section measuring device should be done automatically.
Is an embodiment.
In the above,
1) “Fluid pipeline” includes water and sewage systems and pipelines.
2) In the operation of the main line, the fluid in the fluid pipe line is in a circulation (water flow) state, but a non-flow (non-water flow) state is not excluded.
3) The “straight line” of the transverse tube is not limited to horizontal, and does not exclude the inclined state.
4) The “movement position” of the line includes the amount of axial movement of the line in the crossing tube, the deflection of the line at the position where the cross-section measuring device exists, and the inclination angle.
In the above configuration,
1) The length measurement wings should be arranged radially at 120 ° intervals.
2) The measuring wings should be arranged radially at 60 ° intervals,
3) A paddle that relaxes the contact pressure with the inner surface of the tube wall is fixed to the tip of the measuring wing.
4) The length measurement wing is in a contracted state and the urging is restrained. Therefore, the length measurement wing is to be expanded with the urging released.
5) The connecting line connected to the cross-section measuring device has a pipe port protecting part made up of a bent part with a predetermined curvature at the lower end, and a rail material in which a guiding line of the connecting line is formed in the longitudinal direction, The tube port protection portion is made to face the tube port of the transverse tube, and is erected along each wall surface of the opposite vertical hole, and the wiring is connected to the rail material by each winch arranged above the compatible hole. Guiding with a predetermined tension along the guide path, adjusting the height and tension in the transverse pipe between the vertical holes,
Is an optional matter that is adopted as appropriate. The above items 1) to 5) can be combined with each other as long as no contradiction arises.

(Function)
The line in the transverse pipe is subjected to the concentrated load of the measuring device at the position where the cross-section measuring device moves, and forms the desired deflection and inclination angle.
In other words, this cross-section measuring device applies its own weight to the line through the mounting plate, but due to its own weight and the line's own weight (buoyancy is also added), the line having the desired tension introduced. Indicates the desired amount of deflection and angle of inclination at that position.
Based on the state of the line (position information), the attitude of the apparatus main body is detected by the attitude sensor in the cross-section measuring apparatus, and the position of the reference point (zero point) of the apparatus main body is determined.
The angle sensor detects the contact state of the tip of the measuring wing and displays the cross-sectional state of the crossing tube at the reference point.
Along with the movement of the line, the cross-sectional status of each cross section of the crossing pipe is displayed.

According to the cross-section measurement apparatus for a cross pipe in a bent pipe and the cross-section measurement method for a cross pipe made using the cross-section measurement apparatus according to the present invention, the passage line arranged in the cross pipe moves with the desired position ( Since the position of the measuring device is accurately determined by the posture sensor in conjunction with this, the position of the detection information by the side wing can be easily and quickly determined, and the cross-sectional state of the crossing tube can be determined. Accurate and quick grasp.
The cross section of the crossing tube is reliably measured with the contact of the side wings, the detection information is highly reliable, and contributes to the accuracy of the cross section.
In addition, the measurement by the side wing is a mechanical and simple mechanism, so there are few failures, and it is inexpensive and economical.

The schematic block diagram of the overhanging part of the sewer pipe to which this invention is applied. FIG. The whole rail material side view. It is a fragmentary figure of a rail material, Comprising: (a) is 4-4 sectional view taken on the line of FIG. 3, (b) is a 4-direction arrow directional view of (a). The figure which shows the division | segmentation aspect of a rail material. The lower end part of a rail material is shown, (a) is the side view, (b) is a six-direction arrow view of (a). The partial cross section side view of a working device. The top view of a working device. The assembly figure to the rail material of the attachment trolley | bogie in the measuring apparatus K. FIG. The partial cross section side view which shows the detailed structure of an attachment trolley | bogie (10 direction arrow line view of FIG. 11). The front view of an attachment trolley | bogie (11 direction arrow line view of FIG. 10). FIG. 14 is a longitudinal sectional view showing the configuration of the measuring device K (a sectional view taken along line 12-12 in FIG. 13). Fig. 13 is a cross-sectional view (a cross-sectional view taken along line 13-13 in Fig. 12) in which a part of the measuring device K is omitted. Detailed view showing the structure of the base of the measuring wing. The block diagram which shows the signal processing structure concerning the measuring apparatus K. FIG. The flowchart which shows the work process by the working body K. FIG. The flowchart which shows the work process by the working body K. FIG. The partial cross section whole side view which shows the embodiment in a pipeline.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of a cross-section measuring apparatus for a cross pipe in a bent pipe and a cross-section measuring method for a cross pipe made using the cross-section measuring apparatus according to the present invention will be described with reference to the drawings.
FIGS. 1-17 shows the application to the overhanging part of the sewer pipe which is one Embodiment of this invention.

FIG. 1 shows an overhanging part of a general sewer line. In the figure, 1 is a human hole (1A is an upstream human hole, 1B is a downstream human hole), 2 is a transverse pipe line between the human holes 1A and 1B (an overpass pipe line), 3A is an upstream pipe line, 3B Indicates a downstream pipe line. A curved pipe line is formed from these. In addition, H is a roadbed on the ground surface, and I is deposits such as earth and sand in the overpass manhole.
Thus, in this overhanging portion, the rail material 5 is set up in the human hole 1 and is guided by the rail material 5 to guide the through wire 6. A work device S is disposed on the ground facing the opening 1a of the human hole 1, and winches 7 (7A is an upstream winch and 7B is a downstream winch) mounted on the work device S are connected to both ends of the line 6. Is wound and unwound to move the wire 6 and a necessary tension is introduced into the wire 6.

Hereinafter, the installation of the line 6 will be described according to the procedure.
(1) Conduction of the communication line 6 The communication line 6 is connected to the upstream human hole 1A, the overpass passage 2, the downstream human hole 1B, and the downstream ground from the upstream ground.
As for the conduction of the line 6 into the overpass passage 2, an injection nozzle that has been conventionally used is used in this embodiment, but other aspects are not excluded. Such an injection nozzle is known from the applicant's patent No. 2791502 (in the patent publication, a sewage pipe cleaning device).
FIG. 2 shows one drawing of the patent publication, where S is a cleaning device for a sewer pipe (injection nozzle), H is a high-pressure hose connected to this device S, I is a compressed air hose, J is a reel, and a high-pressure pump A drive unit including a compression unit.
(1a) An injection nozzle, a high-pressure water pump, and a hose are prepared on the ground.
The end of the wire (wire) 6 is connected to the injection nozzle, dropped together with the injection nozzle into the upstream human hole 1A, and the injection nozzle faces the pipe port of the upstream human hole 1A.
Then, the jet nozzle is advanced by the jet (jet flow) propulsion so that the inside of the transverse pipe 2 is advanced toward the downstream side.
When the injection nozzle reaches the downstream side human hole 1B, the line of the injection nozzle is pulled up by the downstream side human hole 1B.
(1b) Attach the line 6 to the electric winch 7 of the work device S on the upstream and downstream ground portions. In this state, the line 6 is in a slack state, but a tension is quickly introduced into the line 6 as needed by driving the winch 7.

(2) Installation of the rail material 5 The rail material 5 with a pipe opening protector is installed in the upstream side human hole 1A and the downstream side human hole 1B.
A level adjusting material 10 is appropriately added to the rail material 5 at the pipe opening portion.
3 to 6 show the detailed structure of the rail member 5 with a tube opening protector.
The rail material 5 is made of a long steel (particularly stainless steel) mold material, a so-called C-type channel, and is composed of vertical parts 5A, bent parts 5B, and horizontal parts 5C from the top.
The cross section of the mold material (C-type channel material) is composed of a back surface portion 12 (dimension A), both side surface portions 13 (dimension B), and a front surface portion 14 (dimension C). A groove space 16 is formed inside the material. As this embodiment, A12cm, B6cm, C2cm, and thickness t3.2mm are taken.

(Vertical part 5A) (refer FIGS. 3-5)
The vertical portion 5A is long and occupies the upper part of the rail member 5, and its length is determined with the human hole depth as a target.
Furthermore, the vertical portion 5A is configured with the divided bodies 100, and is elongated by adding the divided bodies 100 together. For this reason, each divided body 100 is formed with flanges 102 (upper flange 102a and lower flange 102b) at the upper and lower ends of the main body 101, the bolts 104 of the fasteners 103 are inserted into holes formed in the flanges, and nuts 105 are inserted. Tightened and joined. The length of the divided body 100 is 1 m as a standard, and handling by human power is easy.
The lower end of the vertical portion 5A is integrated with a bent portion 5B and a horizontal portion 5C which will be described later.
At the fixed position of the rail member 5, the upper end of the rail member 5, that is, the upper end of the vertical portion 5A protrudes to the ground portion and is fixedly held by the ground portion.
(Bent portion 5B) (see FIGS. 3 and 6)
The bent portion 5B is connected to the vertical portion 5A with a predetermined curvature (curvature radius) R. The R determines the distance (interval) between the rail member 5 and the wall surface of the human hole 1. In the present embodiment, for example, R takes 30 cm.
In the bent portion 5B, a quadrant-shaped flat plate, that is, an R (R) material 18 is fixed on the center line of the back surface of the back surface portion 12 of the rail material 5. 18a is the horizontal side, and 18b is the vertical side. The R material 18 has a predetermined thickness, and performs a stiffening function while maintaining a gap.
In the bent portion 5B, a mode in which a plurality of cylindrical rolling bearings (roller bearings) are arranged side by side facing the groove space 16 on the back surface portion 12 can be adopted. According to this aspect, the through wire 6 arranged in the rail member 5 is smoothly moved.
(Horizontal part 5C) (see FIGS. 3 and 6)
The horizontal portion 5C is connected to the bent portion 5B and abuts on the top of the pipe opening at a fixed position. The length of the horizontal portion 5C is determined by a length that does not hinder the insertion of the rail member 5 from the manhole opening 1a. In the present embodiment, when the opening takes 60 cm, the length is approximately 15 cm.
Therefore, when the rail member 5 receives a required pulling force via the through-wire 6, the maximum bending moment is received at the pipe opening portion of the horizontal portion 5C. For this reason, R material 18 bears reinforcement in the said part, Furthermore, it is used with the level adjustment material 10 shown in FIG. 3, FIG.
At the tip of the horizontal portion 5C, a wide-mouthed portion 20 is formed for the convenience of movement of the line 6 (particularly in a mode in which a moving body is attached to the line 6). The wide-mouthed portion 20 has a so-called trumpet shape, 20a is a portion that spreads to the side (side widened portion), and 20b is a portion that spreads upward (upward spread portion). The upper expanding portion 20b is formed when the level adjusting material 10 is used, and is unnecessary when the level adjusting material 10 is not used.

Level adjustment material 10 (see FIGS. 3 and 6)
The level adjusting material 10 is disposed in contact with the upper surfaces of the bent portion 5B and the horizontal portion 5C. 10a is the upper surface, 10b is the side surface, and 10c is the lower surface. A groove is formed in the R portion of the level adjusting material 10 to receive the R material 18.
The level adjusting material 10 can be used in multiple stages as will be described later. The first stage also functions as a bending reinforcement for the bent portion 5B and the horizontal portion 5C in the rail member 5.

The rail material 5 is installed in the manhole 1 as follows.
(2a)
The lower end of the rail member 5, that is, the lowermost end of the vertical portion 5A, the bent portion 5B, and the horizontal portion 5C are inserted into the human hole 1 through the opening 1a of the human hole 1, and the upper end is once held by the ground portion. Then, the divided body 100 of the vertical portion 5A is added on the flange 102 through the flange 102 and inserted into the human hole 1 again. A level adjusting material 10 is appropriately attached to the lower end of the rail material 5.
Thereafter, the vertical portion 5A of the rail material 5 is sequentially added by the divided body 100, and the long rail material 5 is obtained.
When the lower end of the rail member 5 is at a position facing the pipe opening, the upper surface of the horizontal part 5C is pushed in from the top part of the pipe opening while keeping a certain distance, and then the rail member 5 is pulled up, the upper surface of the horizontal part 5C, Alternatively, the upper surface of the level adjusting material 10 is brought into contact with the top of the pipe opening. (2b)
The vertical portion 5A of the rail member 5 is arranged with a predetermined distance from the inner wall of the human hole 1 by the R member 18 at the lower end thereof. That is, in this embodiment, it is arranged with an interval of 30 cm from the inner wall of the human hole 1.
In the above-ground part, the upper end of the rail material 5 is fixed.

(3) Placement of the line Drive the upstream winch 7A and the downstream winch 7B of the working device S, and connect the loose line 6 to the grooves of the vertical portion 5A and the bent portion 5B of the rail member 5 with the tube opening protector. 15 is guided into the groove space 16 and is wound around the downstream winch 7B along the groove space 16. As a result, the connecting line 6 is consistently stretched in a predetermined state from the upstream side to the downstream side in the curved pipeline.
Here, a steel wire (wire) is used as the through wire 6, the diameter φ12 mm is standard, and the unit length mass w 0.53 kg / m is adopted. The winch 7 is used with 1.3 tons as the standard on both the upstream and downstream sides.

Various functions of the working device S are used in the following work.
7 and 8 show details of the working device S. FIG.
The working device S has a frame 22 as a base and can be moved by front and rear wheels 23 (front wheels 23A and rear wheels 23B). The front outrigger 24 is pulled forward to be fixed on the ground surface. (Ie take the reaction force). The frame 22 has a rectangular box shape, and includes an upper frame 22A, a lower frame 22B, four-round pillars 22C connecting the upper frames 22A and the lower frames 22B, and these frame members (22A, 22B, 22C). It consists of other rigid materials attached to the. The front wheel 23A and the rear wheel 23B of the wheel 23 are caster type, and can be moved laterally. The outrigger 24 has a horizontal portion (horizontal member) 24a that can be stored and pulled out in the upper frame 22A, and a vertical portion (vertical member) 24b is disposed at the end of the horizontal portion 24a.
A winch 7 is installed behind the upper portion of the frame 22 and is rotationally driven by a drive unit (electric motor) 7a. A displacement sensor 25 is disposed in the drive unit 7a, measures the amount of rotation of the winch 7, and measures the amount of winding / rewinding of the line 6, that is, the amount of displacement of the line 6.
A rod-like pulley support 27 is attached to a beam member (frame material) 22A ′, which is horizontally mounted in a rigid contact with the central portion of the upper frame 22A of the frame 22, with a pin connection so as to be rotatable up and down. A pulley 28 is rotatably attached to the tip of the shaft. A load sensor 29 is interposed between the lower surface of the pulley support 27 and the upper surface of the upper frame 22A at the front portion of the frame 22 (lower than the other upper frame 22A). The load to be applied, and hence the tension applied to the line 6 is measured.
With respect to the outrigger 24, a stationary plate 24c with a height adjusting function is disposed at the lower end of the vertical portion (vertical material) 24b. By operating the stationary plate 24c with the height adjusting function, the ground surface is evenly pressed, and the work device S is securely fixed without wobbling.

(Hanging device 120)
In addition to the above configuration, the working device S includes a suspension device 120 that suspends the rail material 5, and the rail material 5 is held (immobilized) via the suspension device 120.
The suspension device 120 includes two pillar members 121 erected on the frame 22 (upper frame 22 </ b> A) of the working device S so as to straddle the pulley support 27, and a beam member placed and fixed on the upper end portion of the pillar member 121. 122, a bracket material 123 protruding forward in a horizontal direction from the beam member 122, a winch 124 disposed on the beam member 122, a pulley 125 disposed on the front end of the bracket 123, The wire 126 fed out from the winch 124 is fixed to the upper end of the rail member 5 via the pulley 125.
The rail material 5 is lifted by the winding of the winch 124, the horizontal portion 5C at the lower end of the rail material 5 is engaged with the top of the tube mouth of the transverse tube 2 and fixed, and a predetermined tension is applied to the wire 126 to provide the rail material 5. Is fixed (immobilized).
In addition, the suspension holding | maintenance of the rail material 5 is made not only by this aspect but by making the upper end of the rail material 5 fixedly hold | grip by a ground part.

The stationary line 6 is fixed as follows.
(3a)
The lower end of the communication line 6 in the upstream human hole 1A and the communication line 6 in the downstream human hole 1B is connected to the lower end of the human hole 1 by using an appropriate jig (for example, a long bar with a hanging metal fitting attached to the lower end). The central portion or the vicinity of the front surface of the rail member 5 is held, the downstream winch 7B is driven, and the through wire 6 is stretched without slackening.
The vertical portions of the communication line 6 in the upstream human hole 1 </ b> A and the communication line 6 in the downstream human hole 1 </ b> B are guided to the groove 15 of the rail member 5 and are inserted into the groove space 16.
(3b)
The downstream winch 7B is further driven to guide the horizontal passage 6 inside the transverse pipe 2 into the groove 15 and the groove space 16 at the lower end portion (bent portion 5B, horizontal portion 5C) of the rail member 5.
As described above, the through wire 6 is inserted into the groove space 16 of the rail material 5 at the position corresponding to the rail material 5, and the installation work of the through wire 6 is completed.

(4) Introduction of tension to the communication line Here, by introducing a predetermined tension to the communication line 6 by the upstream winch 7A and the downstream winch 7B, the communication system in this embodiment is constructed.
That is, the required tension is introduced to the standard line 7 (diameter 12 mm, unit length mass w 0.53 kg / m) by the same standard winch 7 (1.3 tons), and the transverse pipe 2 (20 m ) Is set to a predetermined slope (sag, slope). That is, the predetermined concentrated load acts on the intended line of the suspension curve state and takes a predetermined curve state (sag, inclination) due to superposition.
The main line 6 is provided for movement of the equipment in the transverse pipe 2 after being disposed in the transverse pipe 2, and when the equipment, that is, the moving body is subjected to water resistance, it is broken or greatly bent. It is required to maintain a mechanical situation (strength) that is not subject to this standard, and this standard is based on the mechanical request.
When the main line 6 is subjected to the desired tension, the deflection at the center of the transverse pipe 2 (20 m) of the line 6 is 2.7 cm, and the load of the moving body fixed to the line 6 is 18. When taking 0 kg, the deflection at the center of the line 6 is 11.7 cm, and it does not hinder the work in the transverse pipe 2 attached to the line 6. Further, the bending moment due to the desired tension at the pipe opening is countered by the resistance moment of the cross section of the rail material 5.

(5) Installation of the cross-section measuring device K (see FIGS. 9 to 17)
Subsequent to (3), the cross-section measuring device (hereinafter simply referred to as “measuring device”) K of the present embodiment is installed via the communication line 6, and the cross-section of the transverse tube 2 is measured using the measuring device K. The
The measuring device K is attached to the communication line 6 at the upstream ground part.
The measuring device K is attached via an attachment carriage 32 interposed in the line 6.
9 to 11 show the detailed configuration of the mounting carriage 32. FIG.
The main mounting carriage 32 (left and right front and rear, top and bottom are shown in the drawing) includes a frame body 33 having an elongated box shape, and a rotary shaft 33a rotatably supported by the frame body 33 before and after the frame body 33, The roller 34 is mounted on both ends of the rotating shaft 33 a, the mounting plate 35 is fixed to protrude from the lower surface of the frame body 33, and the mounting ring 36 is fixed to the front and rear portions of the frame body 33. An attachment hole 35a is provided in the attachment plate 35 for attachment to the measuring device K. The height h of the mounting plate 35 is 3 to 4 cm.
The mounting carriage 32 is fitted in the groove space 16 of the rail member 5, and the roller 34 can be moved along the inner surface of the rear surface portion 12 and the front surface portion 14 of the rail material 5. The width of the frame body 33 is slightly smaller than the width of the groove 15 of the rail member 5, and guides the movement of the mounting carriage 32 without shaking.

On the other hand, in the measuring device K, the mounting plate 38 is fixed to the upper part of the main body, and the mounting hole 38a corresponding to the mounting hole 35a of the mounting plate 35 of the mounting carriage 32 is opened.
For mounting the work body A and the mounting carriage 32, the mounting plates 35 and 38 are overlapped with each other, the mounting holes 35a and 38a are aligned, and a fixture (bolt / nut) 39 inserted through the mounting holes 35a and 38a is attached. It is done by tightening.

12 to 14 show the detailed configuration of the measuring device K. FIG.
The measuring device K includes the mounting plate 38 and a device main body 40 fixed to the mounting plate 38. The device main body 40 has a frame body 42 and a rotation support shaft fixed to the frame body 42. A plurality of length measurement wings 43 having a predetermined length and opening radially, with a predetermined interval, an angle sensor 44 for detecting an opening angle of the length measurement wing, and the posture of the apparatus main body , A control board 46 for transmitting and receiving signals and controlling devices inside the apparatus main body 40, and a signal code 47 for communicating with the outside.

  More specifically, the frame body 42 of the apparatus body 40 includes a front (head) frame 50 having a conical shape, an intermediate (neck) frame 51 having a triangular cylindrical shape, and a rear portion (trunk portion) having a straight cylindrical shape. ) Frame 52. The front frame 50 serves as a mudguard for the progress of the apparatus K in the muddy water. The intermediate frame 51 is a part to which the length measuring wing 43 is attached to each side portion, and specifically holds the rotation support shaft of the length measuring wing 43. In the rear frame 52, a cylindrical side plate 52b is fixed to a front disc body 52a, and the rear portion is opened. The diameter of the rear frame 52 is set to a diameter for horizontally receiving the length measurement wing 43 in the contracted state, and two connecting plates 38 and 38 'are attached to the side surface of the rear frame 52 on the upper and lower sides. The release space at the rear of the rear frame 52 is equipped with a fixing mechanism (described later) for the length measuring wing 43.

The length measuring wing 43 is a protruding rod that is pivotally supported by a support shaft holding body 53 fixed to a side of the intermediate frame 51 and has a rigid connection with the rotation support shaft 54. The spring material 55 is locked to 54a. The spring material 55 is interposed between the protruding rod 54a and the support shaft holding body 53, and constantly biases the protruding rod 54a in the opening direction (state shown in FIG. 12). A length measuring rod 43a of the length measuring wing 43 is fixed to the protrusion rod 54a of the rotating spindle 54, and a paddle portion 43b is fixed to the tip thereof. The paddle part 43b makes contact with the muddy deposits. A predetermined distance is maintained from the center of the rotating spindle 54 to the tip of the paddle portion 43b.
At the tip of the length measuring rod 43a of the length measuring wing 43, a flange portion 43c that protrudes further inward is disposed. The flange 43c is interlocked with a fastening mechanism 57 at the rear of the rear frame 52.
The fastening mechanism 57 includes an attachment plate 58 attached to the rear end of the rear frame 52 and an electromagnetic valve 59 attached to the attachment plate 58. The electromagnetic valve 59 is driven in response to an electric signal (described later), and is fixed to the flange portion 43c of the length measuring wing 43 by the axial movement of the drive shaft 59a. The mounting plate 58 also forms a sealed space (watertight space) L at the rear of the rear frame 52.

(Angle sensor 44)
The angle sensor 44 shares the rotation support shaft 54 of the length measurement wing 43 pivotally supported by the support shaft holding body 53 described above, and is attached to the opposite side of the measurement measurement wing 43 mounting portion. The amount of rotation 54 is measured.
That is, 0 ° is taken when the length measurement wing 43 is in the storage position, and the opening angle is detected as the length measurement wing 43 is opened.

(Attitude sensor 45)
The posture sensor 45 uses a so-called acceleration sensor (not excluding the combined use of the gyro sensor), and is disposed at a fixed position in the sealed space J at the rear of the rear frame 52 described above. To detect. The posture sensor 45 is installed in association with the basic position (0 (zero) point) of the main work body A. In the present embodiment, the basic position corresponds to the center axis of the main work body A and the length measurement wing 43. The point of intersection with the plane formed by the three rotation spindles 54 is selected.

(Control board 46)
The control board 46 is also disposed at a fixed position in the sealed space L at the rear of the rear frame 52, and performs transmission and reception of signals and device control within the apparatus main body 40. That is, the signals from the angle sensor 44 and the posture sensor 45 are received and sent to the outside, and the instruction signal is sent to the electromagnetic valve 59 of the fastening mechanism 57 described above in response to the signal from the outside. The signal from the attitude sensor 45 is corrected to an attitude signal at a zero point.
(Communication code 47)
The communication code 47 is connected to the measuring device K, and is sent from the ground part separately from the communication line 6. The communication code 47 is connected to the control board 46 in the main body 40 of the apparatus, transmits a signal of the control board 46 to the ground part, and transmits an instruction signal from the ground part to the control board 46.

  The measuring device K is restricted to a predetermined weight and size (width / height, length). That is, as an example, the weight P of the measuring device K is 18 kg, the diameter φ of the measuring device K is 25 cm, the length L is 60 cm, and the height h of the mounting plate 38 is 3 to 4 cm. Accordingly, the lower bottom of the measuring device K is stored 35 cm from the center position of the rail material 5.

(5a) Attaching the measuring device K At the upstream ground part, an attachment carriage 32 is installed on the line 6. That is, it is attached to the line 6 through the attachment rings 36 at both ends of the attachment carriage 32.
In this state, the mounting plate 35 of the mounting carriage 32 and the mounting plate 38 of the measuring device K are overlapped, and fixing tools (bolts and nuts) 39 are inserted into the mounting holes 35a, 38a, and the fixing tools 39 are tightened. The work body A is attached. A communication cord 47 is connected to the measuring device K.
The measuring device K is disposed above the rail material 5, and the mounting carriage 32 is fitted into the groove space 16 of the rail material 5.
(5b) Lowering / sinking of the measuring device K The unwinding of the upstream winch 7A and the winding of the downstream winch 7B are synchronized, and the work body A is placed in the upstream human hole 1A against the weight of the measuring device K. Lower and sink inside.
(5c) Arrangement of the measuring device K at the tube opening When the measuring device K reaches the bent portion 5B of the rail member 5, the measuring device K draws an arc locus and approaches the tube opening of the transverse tube 2. At this time, since the measuring device K is limited to a predetermined size, the measuring device K faces the tube port of the transverse tube 2 in a predetermined posture without colliding with the wall surface of the tube port.

(6) Operation of the measuring device K The upstream winch 7A and the downstream winch 7B advance the measuring device K from the upstream port through the transverse tube 2 with a predetermined tension and move it to the downstream tube.

(6a) Measurement by the measuring device K At the start of the progress of the measuring device K, the fixing mechanism 57 of the length measuring wing 43 is opened, and the length measuring wing 43 is opened outward by the biasing force of the spring material 55.
As the measuring device K moves along with the movement of the line 6, the length measuring wing 43 has a paddle portion 43b at the tip thereof tracing the surface of the deposit on the wall surface of the transverse tube 2 to maintain a constant opening angle at each position. The rotation support shaft 54 is rotated, and the opening angle is detected by the angle sensor 44.
The acceleration sensor 45 detects the posture (tilt) of the device main body 40 of the measuring device K at each position. These detection values are sent to the processing unit on the ground via the control board 46 and displayed on the monitor.

FIG. 15 shows an internal configuration of the measuring device K and a monitor display configuration on the ground.
As shown in the figure, the measuring device K is equipped with main devices such as an angle sensor 44, an acceleration sensor 45, an electromagnetic valve 59, a sensor 44, an acceleration sensor 44, and a control board 46 for exchanging signals with the electromagnetic valve 59. The The measuring device K exchanges signals with the processing unit (usually a personal computer) 62 on the ground via the signal code 47. The processing device 62 also receives a signal from a displacement sensor 63 (built in the winch 7) that detects the displacement of the communication line 6. The processing device 62 includes or includes an input unit 62a, an image processing unit 62b, and a correction calculation unit 62c, and displays these signals on the monitor 64.
The processing device 62 also receives an information signal from the displacement sensor 63, performs calculation processing, and performs image processing of the inner surface state of the transverse tube 2 as the measuring device K advances.
Information such as the inner diameter and length of the transverse tube 2 is input from the input means 62a. On the monitor 64, the image-processed information is displayed as necessary (usually momentarily).
In this way, as the measuring device K progresses in the transverse pipe 2, the internal state of the transverse pipe 2 is displayed on the monitor 64 every moment.
(6b) Measuring device K for the downstream port
When the measuring device K reaches the downstream port of the transverse pipe 2, the operation of the monitor is finished, and the mounting carriage 32 of the communication line 6 faces the wide opening 20 at the end of the rail material 5, so that the rail material 5 is smooth. It enters into the groove space 16.
(6c) Lifting of the measuring device K By driving the winches 7A and 7B, the measuring device K moves up the vertical portion 5A of the rail material 5 via the bent portion 5B of the rail material 5 and opens the opening 1a of the human hole 1 Is raised to the ground.
Thereafter, the measuring device K is removed from the mounting carriage 32, and the mounting carriage 32 is reversed by the reverse operation of the winches 7A and 7B together with the line 6, and is pulled back to the ground on the upstream side again for the next work.

(7) Second measurement Subsequent to (6c), the measuring device K is rotated by 180 ° around its central axis, and the mounting plate 38 ′ is connected to the mounting plate 35 of the wire 6. Thereby, this measuring device K takes Y arrangement for the radiation angle of the length measuring wing 43. Therefore, the radiation angle of the length measurement wing 43 is set at 60 ° intervals by the first reverse Y arrangement and the Y arrangement.
The measuring device K is subjected to measurement work according to the steps (5a), (5b), (5c), (6a), (6b), and (6c).
In this measurement, the cross-sectional state of the transverse tube 2 is measured at 60 ° intervals from the top of the tube. Note that the second measurement can be omitted as appropriate.

(8) Completion of work The work is completed by the above steps (1) to (7).

16 and 17 show the automatic operation process (including partial manual operation) of the programmed measuring device K. Specifically, the automatic operation process is executed by a program stored in a memory (ROM) built in the processing device 62 and the control board 42.
Before entering automatic operation, the line 6 is fixed as expected, the measuring device K is installed in the line 6 and each device is connected, and then the measuring device K is connected to the upstream side of the cross pipe 2. It is guided by manual operation.
At the start, predetermined measurement conditions (diameter, length, winch speed, once or twice measurement, etc.) are set via the input means 62a such as a keyboard or a touch panel in step S1, and the input is made in step S2. The value is output to a predetermined display (print output means 62b, monitor 64). The specification information (weight, diameter, length) of the measuring device K is input as a predetermined condition.
In step S3, the winch 7 is started based on the measurement condition (winch speed) described above.
In step S4, the tension value of the tension introduced into the through-line 6 in response to the detection value of the load sensor 29 is measured.
In step S5, it is determined whether or not the tension is appropriate. If the tension is lower than the appropriate value, the winding speed of the winch 7 is increased in step S6 (speed increase of the downstream winch 7B or deceleration of the upstream winch 7A). ) If the tension exceeds the appropriate value, the winding speed of the winch 7 is decreased in step S7. When these processes are performed, the process returns to step S5 again. If the tension is an appropriate value, the process proceeds to step S8.
Next, the measurement position is determined in step S8. The measurement position of the measurement device K is calculated based on the detection value of the displacement sensor 25 of the winch 7, and if the measurement device K is a predetermined measurement position, the process proceeds to step S9. If it is not a predetermined measurement position, the above steps S4 to S8 are repeated again. This measurement position takes a continuous value in this embodiment, but does not exclude taking a non-continuous value (for example, every 1 m interval).
If the measurement device K is at a predetermined measurement position, the attachment posture of the measurement device K with respect to the line 6, that is, the posture of the measurement device K is determined based on the detected value of the posture sensor (acceleration sensor) 45 in step S 9. The measurement reference position of the device K is specified.
Next, sludge is measured in step S10. That is, by detecting the attitude of the measuring device K by the acceleration sensor 45 and detecting the opening angle of the measuring wing 43 of the measuring device K by the angle sensor 44, the position of the tip of the measuring wing 43 in the transverse pipe 2 (that is, the sludge surface). Position) is identified.
In step S11, a progress display of measurement data recording is output to a predetermined display (print output means 62b, monitor 64).
In step S12, it is determined whether or not all positions of the measuring device K have been moved. If the measuring device K has not reached the predetermined end position (usually the downstream pipe port), the process returns to step S4, and the above-described steps S4 to S12 are repeated.
When the measuring device K reaches the end position, the process proceeds to step S13 and the winch 7 is stopped. In addition, after the winch 7 stops, the winch 7 is wound up by manual operation and the measuring device K is pulled up to the ground part.
Thereafter, in step S14, predetermined information analysis (cross-sectional position display processing of cross tube 2, graphic display processing, etc.) is performed.
Next, in step S15, it is determined whether it is the first measurement or the second measurement. If it is the first measurement, the process returns to step S3 and the winch 7 is restarted, and steps S3 to S14 are repeated (during this time, the measuring device K). Replacement and further rewinding of the line 6). If it is the second time, the process proceeds to step S16.
In step S16, the information analysis result is appropriately output to the displays 62b and 64.
This is the end.

(Effect of embodiment)
In the present embodiment, the mounting carriage 32 to which the measuring device K is attached is a front and rear two-shaft four wheel, so that the traveling is stable and the measuring device K is not shaken, and the tube port protecting portion (the bent portion 5B, 5C) can be passed stably.
The measuring device K according to the present embodiment has a specified size, length, and weight, and can pass through the transverse tube 2 without obstruction without colliding with the mouth of the transverse tube 2.
According to the measuring device K of the embodiment, the line 6 receives a predetermined tension, and moves with a predetermined deflection amount and a deflection angle at the hanging position of the measuring device K (mainly its weight). By detecting the attitude of the measuring device K with an acceleration sensor built in K, the position of the reference point (zero point) of the measuring device K can be specified accurately and easily. Therefore, the cross-sectional state of the inner surface of the transverse tube at the position of the reference point of the measuring device K is made accurately and easily based on information from the angle sensor.
After the first measurement, the phase is shifted and the second measurement is performed. By combining these results, the cross-sectional condition of the inner surface of the transverse tube 2 with a radiation interval of 60 ° is grasped, and the accuracy of this measurement method is confirmed. Will increase.
Since the accumulation situation in the transverse tube 2 is imaged, it can be visually confirmed and the situation can be easily grasped.
The measurement operation in the cross pipe 2 by the measuring device K is automatic operation except for a part, so that the operator can concentrate on monitoring the monitor, and at the same time as the automatic operation is finished, the precise sediment sediment in the cross pipe 2 is You can get the situation.

(Other aspects 1)
In the above embodiment, the length measurement wings 43 are three. However, by adopting a mode in which the length measurement wings are six at equal intervals, the measurement at intervals of 60 ° can be performed and only one measurement is required. In this aspect, the intermediate part (neck part) frame 51 of the frame body 42 has a hexagonal shape, and a length measuring wing is attached to each side part.
(Other aspect 2)
In the neck frame 51 of the frame body 42, three length measurement wings (120 ° intervals) are arranged with a phase shifted by 60 ° in the front-rear direction. Even in this mode, only one measurement is required.
(Other aspect 3)
In the present embodiment, the two mounting plates 38 and 38 'are arranged. However, in the aspect shown in FIG. 18, the radiation angle of 40 ° from the side surface of the rear frame 52 (the center of the rear frame 52 is set so as not to interfere with the side long wing 43). Three mounting plates 38A, 38B, 38C are arranged.
According to this aspect, by performing measurement three times for each of the three mounting plates 38A, 38B, and 38C, nine measurement points are obtained at 40 ° intervals, which is more accurate than the previous embodiment. Measurements are made.

The present invention is not limited to the underground pipe dredging, and can also be applied to other transverse pipes (underground pipes) in the sewerage system, water pipes, and pipelines.
In pipelines (petroleum, natural gas), the strong adhesion of foreign matter to the pipe wall has become a problem, and the application of the present invention is expected for the investigation and removal of this deposit.
In FIG. 19, P indicates a pipeline arranged on the ground. Upright pipes 200 for the perforations Q are erected at appropriate two locations of the pipeline P, and the gantry 201 is installed. A winch 202 and a pulley 203 are installed on the gantry 201.
In the implementation of the present invention, a perforation Q is formed on the gantry 201, a through wire 205 is arranged through the perforation Q, a rail material 206 is inserted, and the through wire 205 is installed in a desired state by the winch 202. The cross-section measuring device K is arranged, and the cross-section measuring device K is used for measurement.

  The present invention is not limited to the above-described embodiments, and various design changes can be made within the scope of the basic technical idea of the present invention.

  K ... Measuring device, 1 ... Standing hole (human hole), 1A ... Upstream side vertical hole (human hole), 1B ... Downstream side vertical hole (human hole), 2 ... Transverse pipe (passing pipe), 3A ... Upstream side Pipe line, 3B ... downstream pipe line, 5 ... rail material, 5A ... vertical part, 5B ... bent part, 5C ... horizontal part, 6 ... wiring, 7 ... winch, 7A ... upstream winch, 7B ... downstream winch 42 ... Frame body 43 ... Measuring wing 44 ... Angle sensor 45 ... Attitude sensor 46 ... Control board

Claims (7)

In the bent pipe line connected to the flow state through the straight transverse pipe between the opposing vertical holes of the fluid pipe line that forms the flow of fluid from the upstream to the downstream,
A cross-section measuring device for the transverse pipe used by being connected to a line that is arranged over the vertical hole and the transverse pipe and moves with an intended tension in an axial direction of the vertical hole and the transverse pipe,
Comprising a mounting plate that is connected to the through wire and a device main body fixed to the mounting plate;
The apparatus main body is
1) a frame body that is substantially box-shaped and has the mounting plate fixed to the outer surface thereof;
2) The rotation support shaft is fixed to the outer surface of the frame body, has a predetermined length, and receives a biasing action so that its distal end radially opens to abut against the inner surface of the transverse tube , maintaining a predetermined interval. Multiple measurement wings arranged radially,
3) an angle sensor for detecting the opening angle of the measuring wing;
4) an attitude sensor for detecting the attitude of the device body;
With
The length measuring wing is moved in the axial direction of the transverse tube by bringing the tip of the length measuring wing into contact with the inner surface of the transverse tube;
A cross-section measuring device for a transverse pipe used together with a line arranged in a bent pipe line. In the arrangement of the through wire, a rail member having a pipe port protecting portion consisting of a bent portion with a predetermined curvature at the lower end and having a through wire guiding path formed in the longitudinal direction of the rail material is passed through the pipe port protecting portion. And erected along each wall of the opposite vertical hole,
The winch is guided with a predetermined tension along the guide path of the rail material by each winch arranged above the compatible hole,
Adjust the height and tension in the transverse pipe between the vertical holes,
The cross-section measuring device for a transverse pipe used together with the through-wire arranged in the bent pipeline according to claim 1. In the movement of the cross-section measuring device in the transverse pipe, automatic operation is performed by the intended automatic operation program.
The cross-section measuring device for a transverse pipe used together with the through-wire arranged in the bent pipe line according to claim 1 or 2. In the bent pipe line connected to the flow state through the straight transverse pipe between the opposing vertical holes of the fluid pipe line that forms the flow of fluid from the upstream to the downstream,
Used across the vertical hole and the transverse pipe and connected to a line that moves with the desired tension in the axial direction of the vertical hole and the transverse pipe,
Comprising a mounting plate that is connected to the through wire and a device main body fixed to the mounting plate;
The apparatus main body is
1) a frame body that is substantially box-shaped and has the mounting plate fixed to the outer surface thereof;
2) The rotation support shaft is fixed to the outer surface of the frame body, has a predetermined length, and receives a biasing action so that its distal end radially opens to abut against the inner surface of the transverse tube , maintaining a predetermined interval. Multiple measurement wings arranged radially,
3) an angle sensor for detecting the opening angle of the measuring wing;
4) an attitude sensor for detecting the attitude of the device body;
A cross-section measuring method for a cross pipe made using a cross-section measuring device comprising: the tip of the length measuring wing abutting against the inner surface of the cross pipe by the angle sensor as the line moves. Measuring the opening angle of the measuring wing, and the posture of the apparatus main body by the posture sensor, processing the amount of movement of the line and the measured value, and measuring the cross-sectional state of the transverse pipe,
A method for measuring a cross section of a transverse pipe in a bent pipe. The measurement result of the cross-sectional condition of the crossing tube is displayed as an image on the monitor.
The method of measuring a cross section of a transverse pipe in a bent pipe according to claim 4. In the arrangement of the through wire, a rail member having a pipe port protecting portion consisting of a bent portion with a predetermined curvature at the lower end and having a through wire guiding path formed in the longitudinal direction of the rail material is passed through the pipe port protecting portion. And erected along each wall of the opposite vertical hole,
The winch is guided with a predetermined tension along the guide path of the rail material by each winch arranged above the compatible hole,
Adjust the height and tension in the transverse pipe between the vertical holes,
The method of measuring a cross section of a transverse pipe in a bent pipe according to claim 4 or 5. Measurement in the cross pipe of the cross-section measuring device is done by automatic operation,
The method of measuring a cross section of a transverse pipe in a bent pipe according to any one of claims 4 to 6.

Images