JP7333909B2 - Observation device and observation method in pipeline - Google Patents

Description

TECHNICAL FIELD The present invention relates to an observation device and an observation method inside a pipeline.

Patent Documents 1 and 2 describe techniques for photographing the inside of a pipeline to observe the state of damage, etc., for the maintenance of fluid pipelines installed underground, such as water supply and sewage pipes and agricultural pipelines. technology is known. In the technique described in Patent Literature 1, a camera is mounted on a moving body that moves inside a pipeline to photograph the inside of the pipeline. Further, in the technique described in Patent Document 2, a float is integrated with a shell containing a camera, and the float is run along with the flow of tap water in the water pipe to photograph the inside of the water pipe.

Japanese Patent Application Laid-Open No. 2004-333285 (published on November 25, 2004) JP 2019-74497 A (published on May 16, 2019)

With the technique described in Patent Document 1, there is a limit to the length of the cords connected to the moving body and the camera, making it difficult to observe a wide range. In addition, in the technique described in Patent Document 1, it is necessary to stop the flow of the fluid in the pipeline before introducing the mobile body into the pipeline, and the pipeline cannot be used during observation, and in addition, normal use is difficult. It is not possible to observe the inside of the pipeline in the state of time. Furthermore, the technique described in Patent Document 2 is not configured to observe, for example, a small-diameter, high-pressure pipeline for delivering irrigation water to a field, so a camera is introduced into the pipeline. In addition, it is difficult to observe the inside of the pipeline while maintaining the high pressure. Furthermore, such small diameter pipelines are difficult for humans to enter from the end.

The small-diameter, high-pressure pipelines used to deliver irrigation water to fields are laid over an extremely wide area, and the length of these pipelines is enormous when branch waterways are included. Such pipelines are prone to accidental breakage as they age. In particular, small-diameter, high-pressure pipelines used to deliver irrigation water to fields are more susceptible to breakage.

If the pipeline is damaged, the road will collapse, the soil will run off into the surrounding farmland, etc., and the burden of repair costs will increase. Since it is necessary to restore damaged pipelines as soon as possible, the current situation is that post-maintenance restoration work is prioritized over equipment replacement for preventive maintenance. However, as pipeline damage is expected to increase in the future as it ages, it is urgent to switch from corrective maintenance to preventive maintenance. Surveillance technology is needed.

One aspect of the present invention is made to solve the above-described problems, and is an observation apparatus for inside a pipeline that can photograph the inside of a pipeline while a fluid is circulating, even in a high-pressure pipeline. And the purpose is to realize the observation method.

In order to solve the above problems, the present invention includes the following aspects.
1) A body that can be connected to a fluid line via a valve provided in the fluid line, a camera capsule that can be accommodated in the body and that houses a camera, and the camera capsule that can be inserted from the body into the outside. A viewing device in a pipeline, comprising a pusher mechanism for moving and a reel for feeding and rewinding a thread connected to the camera capsule.
2) The apparatus for observing inside a pipeline according to 1), wherein the body has a sealed structure that seals the inside thereof when connected to the fluid pipeline.
3) The tube according to 1) or 2), wherein the camera capsule is suspended in the fluid conduit by feeding the thread from the reel while the fluid is circulating in the fluid conduit. Observation device in the road.
4) The push-out mechanism has a recess that accommodates at least a portion of the camera capsule in the abutting portion that abuts on the camera capsule. Observation device.
5) The camera capsule has a rear portion connected to the string, a body portion for fixing the camera inside, a front portion facing the lens of the camera, and a disc-shaped portion provided around the body portion. 4).
6) The apparatus for observing pipes according to any one of 1) to 5), wherein the body is connected to a control valve of an air valve provided in a fluid pipe through which fluid is circulated. .
7) A method for observing the inside of a pipeline using the observation device for the inside of a pipeline according to any one of 1) to 6), which is connected to the fluid pipeline via a valve provided in the fluid pipeline. A method for observing the inside of a pipeline, comprising a photographing step of introducing the camera capsule into the fluid pipeline and photographing the inside of the fluid pipeline while the fluid is circulating in the fluid pipeline. .

According to one aspect of the present invention, for example, even in a small-diameter, high-pressure pipeline for delivering irrigation water to a farmland, it is possible to photograph the inside of the pipeline while the fluid is being circulated.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic diagram showing an overview of a device for observing inside a pipeline according to an embodiment of the present invention; It is a figure explaining the installation state of the observation apparatus in the pipeline which concerns on one Embodiment of this invention. FIG. 2 is a diagram illustrating a part of a method for observing inside a pipeline using the apparatus for observing inside a pipeline according to an embodiment of the present invention; FIG. 5 is a diagram illustrating another part of the method for observing inside a pipeline using the apparatus for observing inside a pipeline according to one embodiment of the present invention. 1 is a schematic exploded view showing an example of a camera capsule provided in an intraduct observation device according to an embodiment of the present invention; FIG. 1 is an exploded view showing an example of a camera capsule provided in an intraduct observation device according to an embodiment of the present invention; FIG.

One embodiment of the invention will be described with reference to FIGS. FIG. 1 is a schematic diagram showing an outline of an observation device for inside a pipeline according to one embodiment of the present invention, and FIG. It is a figure to do. FIG. 3 is a diagram for explaining a part of a method for observing the inside of a pipeline using the apparatus for observing inside a pipeline according to an embodiment of the present invention, and FIG. It is a figure explaining a part of observation method in a pipeline using the observation apparatus in a pipeline.

As shown in FIGS. 1-4, an in-line viewing device 100 is used by attaching to a valve in a fluid line 101 . The observation device 100 includes a body 20 , a rod (extrusion mechanism) 30 and a reel 40 . In this embodiment, the control valve 103 of the air valve 102 will be described as an example of the valve to which the observation device 100 is attached. Fluid flows through the fluid conduit 101 in the direction indicated by the arrow in FIG. Observation device 100 is used to introduce camera capsule 10 into fluid line 101 and to remove camera capsule 10 from fluid line 101 .

The inside of the fluid pipeline 101 can be observed by photographing the inside of the fluid pipeline 101 with the camera in the camera capsule 10 introduced by the observation device 100 . Many of the breakages occurring in the fluid conduit 101 can be easily found by observing the inside thereof. By using the observation device 100, the inside of the fluid conduit 101 can be observed while the fluid is continuously flowing through the fluid conduit 101, so that the state of the fluid conduit 101 during normal use can be observed. . Further, by using the observation device 100, the inside of the fluid conduit 101 can be observed while the inside of the fluid conduit 101 is maintained at a high pressure.

(fluid conduit)
A fluid pipeline 101 in which the observation device 100 is installed to observe the inside of the pipeline is, for example, a small-diameter, high-pressure pipeline for delivering irrigation water to a field. The diameter of the fluid conduit 101 in which the observation device 100 is installed is preferably 600 mm or less, more preferably 500 mm or less, and even more preferably 300 mm or less. The observation device 100 can be installed through a valve even in a fluid conduit 101 with a small diameter of 600 mm or less, and the camera capsule 10 can be reliably introduced into the conduit.

The pressure in the fluid conduit 101 in which the observation device 100 is installed is preferably 0.1 MPa or more and 0.6 MPa or less, more preferably 0.4 MPa or more and 0.6 MPa or less, and 0.4 MPa or more. , 0.5 MPa or less. The pressure inside the water supply pipe is usually about 0.3 MPa, and the inside of the sewage pipe is not supplied with water at full flow, so almost no pressure is applied. The observation device 100 can be installed even if the inside of the pipeline is at a high pressure of 0.1 MPa or more and 0.6 MPa or less, and the camera capsule 10 can be reliably introduced into the pipeline.

As shown in an external view 1001 of FIG. 2, an air valve 102 is provided in a fluid pipeline 101 in which the observation device 100 is installed. A control valve 103 is provided between the air valve 102 and the fluid line 101 . An external view 1001 of FIG. 2 shows the fluid conduit 101 before the observation device 100 is installed. The air valve 102 is provided to remove air generated in the fluid conduit 101 and to introduce air into the fluid conduit 101 . The management valve 103 is a valve that controls the flow of fluid into and out of the air valve 102 .

The air valve 102 is provided in a straight section of the fluid pipeline 101 at a position with a higher gradient than the other sections. The fluid conduit 101 provided with the observation device 100 is most preferably a conduit consisting only of straight sections, but may be a conduit having a relatively gently curved section. Even if the fluid pipeline 101 is installed at a depth of 1 m to 2 m underground, the air valve 102 is located at a depth of several tens of centimeters underground. Since the air valve 102 is provided inside the manhole, there is no need to dig up the ground to install the observation device 100 .

When the fluid pipeline 101 is installed to extend very long, such as several kilometers to several thousand kilometers, the air valves 102 are provided at intervals of 200 m to 400 m, for example. Therefore, the observation device 100 may be provided in the control valves 103 of all the air valves 102 provided in the fluid pipeline 101, or may be provided in every few control valves 103. FIG.

When installing the observation device 100 in the fluid pipeline 101, first, the control valve 103 is closed and then the air valve 102 is removed. As shown in the external view 1002 of FIG. 2, the observation device 100 is installed on the control valve 103 after removing the air valve 102 . The control valve 103 is preferably a ball valve having a spherical valve body. For example, if the control valve 103 is a valve such as a butterfly valve that does not have a spherical valve body, the observation device 100 is installed on the control valve 103 after changing to a ball valve. The diameter of the control valve 103 is preferably 75 mm or more.

(body)
The body 20 can be connected to the fluid conduit 101 via a valve provided on the fluid conduit 101 . The body 20 is installed via its connecting portion 21 on the control valve 103 after removing the air valve 102 . The connecting portion 21 is screwed to the control valve 103, for example. The control valve 103 protrudes in the extending direction of the fluid conduit 101, that is, in a direction intersecting the fluid circulation direction. The body 20 is provided so as to protrude from the control valve 103 .

It is preferable that the body 20 has a cylindrical shape with an open connecting portion 21 . That is, when the body 20 is connected to the fluid conduit 101, the end of the fluid conduit 101 on the valve side is open. The diameter of the body 20 is appropriately set according to the diameter of the control valve 103, preferably 75 mm or more, more preferably 100 mm or more, and even more preferably 150 mm or more. The fuselage 20 can be made of stainless steel, for example. The length of the body 20 is, for example, 1000 mm.

At least one of the top end portion 22 and the side portion 23 of the body 20 is provided with a flange lid. The top end portion 22 is provided with an air release valve 24 for releasing the air inside the body 20 . The flange lid is preferably transparent so that the inside of the body 20 can be seen, and is made of acrylic resin, for example. Since at least one of the top end portion 22 and the side portion 23 can be opened and closed by the flange lid, the camera capsule 10 can be easily moved in and out of the body 20 . In addition, since the flange lid is made of transparent acrylic resin and the inside of the body 20 can be seen, it is possible to check whether there is any problem such as the camera capsule 10 being caught in the body 20. .

It is preferable that the body 20 have a sealed structure that seals the inside thereof when connected to the fluid conduit 101 . The state in which the interior of the body 20 is sealed is intended to be a state in which the fluid in the fluid conduit 101 connecting the body 20 is not allowed to flow out and the pressure in the fluid conduit 101 is not changed. . It is preferable that the connecting portion between the connecting portion 21 and the fluid conduit 101 is sealed by packing, for example, so that the body 20 has a sealed structure when connected to the fluid conduit 101 .

If the fluid in the fluid line 101 flows out or the pressure changes when the body 20 is connected, the normal use state of the fluid line 101 cannot be observed. Since the body 20 has a sealed structure in which the interior is sealed when connected to the fluid conduit 101, the fluid in the fluid conduit 101 does not flow out or the pressure changes. Normal use of the fluid line 101 can be observed. That is, the body 20 may be connected to a control valve of an air valve provided in the fluid conduit 101 through which fluid is circulated at high pressure.

(rod)
The rod 30 is a push-out mechanism that pushes the camera capsule 10 out of the body 20 , ie into the fluid conduit 101 . Any mechanism having a function of pushing out the camera capsule 10 from the interior of the body 20 to the outside can be used as the pushing mechanism instead of the rod 30 .

The rod 30 is positioned between the inside of the body 20 and the inside of the fluid conduit 101, and has a contact portion 32 that contacts the camera capsule 10 that houses a camera for photographing the inside of the fluid conduit 101, and an abutment portion 32 that extends from the contact portion 32. and an operation unit 31 at least a part of which is positioned outside the body 20 . The rod 30 can move the camera capsule 10 between the inside of the body 20 and the inside of the fluid conduit 101 by operating the operation part 31 with the camera capsule 10 in contact with the contact part 32 . It is attached to the body 20 as follows.

The rod 30 has an operation portion 31 at one end thereof. The operating portion 31 protrudes outside the body 20 through a hole provided in the top end portion 22 of the body 20 . The rod 30 has a contact portion 32 which is a push-in end portion at the end portion opposite to the operation portion 31 . The contact portion 32 is located between the inside of the body 20 and the inside of the fluid conduit 101 .

The operator grips the operation portion 31 and pushes the rod 30 into or out of the body 20 through the hole provided in the top end portion 22 , so that the contact portion 32 moves into the body 20 and the fluid conduit 101 . can move in and out. Therefore, by operating the operating portion 31 while the camera capsule 10 is in contact with the contact portion 32 , the camera capsule 10 can be moved between the inside of the body 20 and the inside of the fluid conduit 101 . It is preferable to fill the gap between the hole provided in the top end portion 22 and the rod 30 with, for example, silicon to ensure the airtightness inside the body 20 without interfering with the operation of the rod 30 .

Merely introducing the camera capsule 10 into the body 20 may not properly introduce the camera capsule 10 into the fluid conduit 101 . In particular, when the pressure inside the fluid conduit 101 is high, it is necessary to push the camera capsule 10 toward the fluid conduit 101 . Since the observation device 100 has a rod 30 , the camera capsule 10 introduced into the body 20 can be properly pushed into the fluid conduit 101 .

The rod 30 including the operation portion 31 is made of, for example, vinyl chloride resin, and may be integrally formed. The contact portion 32 is preferably made of Teflon (registered trademark), a resin having a low coefficient of friction, in order to prevent the thread 41 from breaking. Since the contact portion 32 is introduced into the fluid conduit 101 via the control valve 103 , the diameter of the contact portion 32 is smaller than the diameter of the control valve 103 . Also, the abutting portion 32 preferably has a diameter larger than the camera capsule 10 so as to properly abut on the camera capsule 10 . The contact portion 32 may be provided with a through-hole (guide) capable of accommodating the thread 41 of the reel 40, which will be described later. As a result, the feeding and rewinding of the yarn from the reel 40 are properly guided and are not obstructed by the contact portion 32 .

The abutment portion 32 preferably has a recess 33 that accommodates a portion of the camera capsule 10 . The recess 33 may have any shape and size that can accommodate the end portion of the camera capsule 10, such as a hemispherical shape. As shown in state 1006 in FIG. 4, after the camera capsule 10 whose end is accommodated in the recess 33 is introduced into the fluid conduit 101, the thread 41 is loosened by the reel 40, and the camera capsule connected to the thread 41 is loosened. The rear part of 10 rotates with the depression 33 as a fulcrum. As a result, as shown in state 1007 in FIG. 4, the orientation of the camera capsule 10 is changed so that the longitudinal direction of the camera capsule 10 is aligned with the flow direction of the fluid indicated by the arrow. As a result, the photographing range R of the camera inside the camera capsule 10 becomes wider inside the fluid conduit 101 .

When the camera capsule 10 is recovered, the thread 41 is wound by the reel 40 until the end of the camera capsule 10 is accommodated in the recess 33 . rotate around the fulcrum. As a result, the orientation of the camera capsule 10 changes so that the longitudinal direction of the camera capsule 10 is aligned with the extending direction of the body 20 . As a result, the camera capsule 10 can be retrieved without being caught in the body 20. - 特許庁

(reel)
A reel 40 feeds and rewinds a thread 41 connected to the camera capsule 10 . The reel 40 controls the position of the camera capsule 10 within the fluid conduit 101 by controlling the slackness of the thread 41 by tensioning and loosening the thread 41 . A reel 40 is provided on the outer surface of the body 20 . After the camera capsule 10 is pushed up to the fluid conduit 101 by the rod 30, the camera capsule 10 flows down according to the flow in the fluid conduit 101, so that the reel 40 is operated to send out and rewind the thread 41 to rewind the thread. 41 relaxation. Thereby, the position of the camera capsule 10 within the fluid conduit 101 can be controlled.

The observation device 100 causes the camera capsule 10 to float inside the fluid conduit 101 by sending the thread 41 from the reel 40 while the fluid is circulating inside the fluid conduit 101 . If the thread 41 is further fed out while the camera capsule 10 is suspended in the fluid pipeline 101, the camera capsule 10 will flow farther in the fluid pipeline 101 along with the flow of the fluid. Accordingly, it is possible to photograph a wide range of the fluid pipeline 101 .

After the thread 41 is continuously sent out from the reel 40 and flowed until the camera capsule 10 passes through the observation section in the fluid conduit 101, the thread 41 is slowly rewound and tension is applied to the fluid conduit 101 of the camera capsule 10. Stabilize your posture inside. As a result, the image captured by the camera in the camera capsule 10 is less likely to be blurred.

The thread 41 is preferably pulled out from the recess 33 through a through hole provided in the contact portion 32 of the rod 30 . As a result, the feeding and rewinding of the thread 41 by the reel 40 are not hindered by the contact portion 32 . Also, by controlling the loosening of the thread 41 by the reel 40, the direction of the camera capsule 10 can be changed with the depression 33 as a fulcrum.

(Observation method)
A method for observing the inside of a pipeline using the observation device 100 according to one embodiment of the present invention will be described. The method for observing the inside of a pipeline is to use the observation device 100 for the inside of a pipeline according to one embodiment of the present invention, which is connected to the fluid pipeline 101 via a valve provided in the fluid pipeline 101. This observation method includes a photographing step of introducing the camera capsule 10 into the fluid conduit 101 to photograph the inside of the fluid conduit 101 while the fluid is circulating in the fluid conduit 101 .

As shown in state 1003 in FIG. 3, when the observation device 100 is connected to the fluid conduit 101, the control valve 103 is closed, so the fluid flowing through the fluid conduit 101 exists above the control valve 103. do not. In state 1003 , the flange lid of the side portion 23 is opened, the camera capsule 10 can be attached to the tip of the thread 41 , or the camera can be housed in the camera capsule 10 attached to the thread 41 .

Next, as shown in state 1004 in FIG. 3, the flange lid of the side portion 23 is closed and the control valve 103 is opened. Next, by removing air from the air vent valve 24 attached to the upper portion of the observation device 100 , the body 20 is filled with the fluid flowing through the fluid conduit 101 up to the top end 22 .

Then, as shown in state 1005 in FIG. Furthermore, as shown in states 1006 and 1007 in FIG. 4, by feeding the thread 41 from the reel 40, the camera capsule 10 can be placed further downstream than the place where the user wants to observe the camera capsule 10 along with the flow of fluid flowing through the fluid conduit 101. Float to the side. In this way, when the reel is reeled up with the camera capsule 10 floating in the fluid conduit 101, the camera capsule 10 receives the fluid force from the upstream side of the fluid conduit 101 and acts on the blades of the camera capsule 10, which will be described later. 15 receives concentrically. This makes it possible to direct the lens of the camera housed in the camera capsule 10 in the extension direction of the fluid conduit 101 . In this state, by photographing the interior of the fluid conduit 101 with the camera housed in the camera capsule 10, the state of the interior of the fluid conduit 101 during normal use can be observed.

If the thread 41 is colored with a different color for each predetermined length, the position of the camera capsule 10 in the fluid conduit 101 can be specified by the length of the thread 41 that is sent out. Alternatively, the position of the camera capsule 10 in the fluid conduit 101 may be identified by using the joint of the fluid conduit 101 in the image captured by the camera as a mark. Since the position of the camera capsule 10 in the fluid conduit 101 can be specified in this way, it is possible to easily specify the defect site observed in the image taken by the camera.

ADVANTAGE OF THE INVENTION According to the observation device in a pipeline and the observation method in a pipeline according to an embodiment of the present invention, the observation device can be installed using the valve provided in the fluid pipeline, and the observation device and the A high degree of sealing between the observation device and the fluid conduit can be ensured. Therefore, according to the observation device and the observation method for inside a pipeline according to an embodiment of the present invention, even a small-diameter, high-pressure pipeline for delivering irrigation water to a field, for example, , the inside of the pipeline can be photographed while the fluid is circulating.

(camera capsule)
The configuration of the camera capsule 10 provided in the observation device 100 will be described with reference to FIGS. 5 and 6. FIG. FIG. 5 is a schematic exploded view showing an example of a camera capsule provided in an observation device according to one embodiment of the present invention. FIG. 6 is an exploded view showing an example of a camera capsule provided in an intraduct observation device according to an embodiment of the present invention. For convenience of explanation, FIG. 6 shows a state in which the blade portion 15 is removed. In FIG. 6, state 1008 shows the disassembled state of the entire camera capsule 10, state 1009 shows the partially assembled state of the camera capsule 10, and state 1010 shows the assembled state of the camera capsule 10. Shows the finished product.

The camera capsule 10 can be introduced through the valve of the fluid conduit 101 and has a size that allows it to suitably float within the fluid conduit 101 . The diameter of the largest diameter portion of the camera capsule 10 is preferably 75 mm or less. Also, the length of the camera capsule 10 is preferably 65 mm or less, more preferably 100 mm or less.

The camera capsule 10 has a rear portion 11 , a body portion 12 , a front portion 13 and wings 15 . In the camera capsule 10 , elastic members 14 seal between the rear portion 11 and the body portion 12 and between the body portion 12 and the front portion 13 . Further, the blade portion 15 is provided between the body portion 12 and the front portion 13 . The rear portion 11, body portion 12 and front portion 13 have cavities therein.

The rear part 11 is a member connected to the thread 41 . The rear portion 11 is a starting point from which the camera capsule 10 rotates and changes direction while in contact with the contact portion 32 . The rear portion 11 is provided with a hole for connecting the thread 41 . The rear portion 11 is preferably conical with no corners. If the rear portion is conical, a thread 41 is connected to the apex side of the conical shape. The rear portion 11 may be composed of, for example, a cap 11a and a cap nut 11b. Since the rear portion 11 may come into contact with the inner wall of the fluid conduit 101, it is preferably made of a material having a predetermined elasticity. The rear part 11 can be made of polypropylene, for example.

Body 12 is a member for fixing camera 16 therein. The body part 12 has a fixing part 19 for fixing the camera 16 therein. As with the rear part 11, the body part 12 is also likely to come into contact with the inner wall of the fluid conduit 101, so it is preferably made of a material having a predetermined elasticity. Body 12 may be made of polypropylene, for example.

The fixed part 19 is preferably adapted to accommodate the light 18 . Light 18 is, for example, an LED light. A light-shielding lens cover 17 is preferably provided at the end of the camera 16 on the lens side so that the light from the light 18 does not directly enter the lens.

The front part 13 is a member facing the lens of the camera 16 . Therefore, it is preferable that the front portion 13 be made of a highly translucent material. The front part 13 can be made of acrylic resin, for example.

The rear portion 11, the body portion 12, and the front portion 13 are preferably independent members from the viewpoint of ease of manufacture. The rear part 11, the body part 12 and the front part 13 can be manufactured, for example, using a three-dimensional printing machine. Since the camera capsule 10 is introduced into the fluid conduit 101 in which fluid is circulated, it is preferable that the camera capsule 10 has a highly watertight structure. Between the rear part 11 and the body part 12 and between the body part 12 and the front part 13 are sealed by elastic members 14, for example the connections are screwed. Since the camera capsule 10 is introduced into a fluid conduit 101 that circulates fluid at high pressure, it preferably has a pressure-resistant structure. By making the rear portion 11 and the body portion 12, for example, of polypropylene, the pressure resistance of the camera capsule 10 can be enhanced.

The blade portion 15 is a disk-shaped or collar-shaped member provided around the body portion 12 . The vanes 15 are for stabilizing the posture of the camera capsule 10 floating in the fluid conduit 101 . The blade portion 15 is made of an elastic member such as rubber. Preferably, the blade portion 15 is provided with a plurality of small-diameter holes for allowing fluid to pass through the disc-shaped or collar-shaped portion.

(camera)
The camera 16 accommodated in the camera capsule 10 is preferably a compact and wireless digital camera, and more preferably a so-called action camera having a waterproof function equivalent to that of a household waterproof function. Also, the camera 16 may be capable of wireless communication, so that recording of the camera can be started and stopped while the camera 16 is built into the camera capsule 10 .

The present invention is not limited to the above-described embodiments, but can be modified in various ways within the scope of the claims, and can be obtained by appropriately combining technical means disclosed in different embodiments. is also included in the technical scope of the present invention. Furthermore, new technical features can be formed by combining the technical means disclosed in each embodiment.

INDUSTRIAL APPLICABILITY The present invention can be used in the agricultural field.

10 camera capsule 20 body 30 neck (extrusion mechanism)
33 recess 40 reel 41 thread 100 observation device (observation device in pipe)
101 fluid line 102 air valve 103 control valve (valve)

Claims (6)

a body connectable to the fluid conduit via a valve provided in the fluid conduit;
a camera capsule housing a wireless camera, receivable within the torso;
a pushing mechanism for moving the camera capsule out of the fuselage;
A reel for feeding and rewinding the thread connected to the end of the camera capsule ,
The observation device for inside a pipeline , wherein the push-out mechanism has a recess for accommodating an end portion of the camera capsule in a contact portion that contacts the camera capsule . 2. The apparatus for observing inside a pipeline according to claim 1, wherein the body has a sealed structure that seals the inside thereof when connected to the fluid pipeline. 3. The inside of the conduit according to claim 1, wherein the camera capsule is floated in the fluid conduit by feeding the thread from the reel while the fluid is circulating in the fluid conduit. observation device. The camera capsule includes a rear portion connected to the thread, a body portion in which the wireless camera is fixed, a front portion facing the lens of the wireless camera, and a disc-shaped portion provided around the body portion. 4. The intraduct observation device according to any one of claims 1 to 3, comprising a wing portion. 5. The pipeline according to any one of claims 1 to 4, wherein the body is connected to a control valve after removing an air valve provided in a fluid pipeline through which fluid is circulated. Observation device inside. A method for observing inside a pipeline using the apparatus for observing inside a pipeline according to any one of claims 1 to 5, which is connected to the fluid pipeline via a valve provided in the fluid pipeline. There is
A method of observing the inside of a pipeline, comprising a photographing step of introducing the camera capsule into the fluid pipeline and photographing the inside of the fluid pipeline while the fluid is circulating in the fluid pipeline.

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