JP3023680U - In-pipe imager - Google Patents

Abstract

(57) An object of the present invention is to provide a photographing device capable of photographing even inside a pipe whose inner diameter extending in the horizontal direction does not reach 100 mm. SOLUTION: In a cylindrical outer cylinder 3 in which a window portion 2 is formed,
A see-through cylindrical inner cylinder 4 is fitted and both ends are watertightly closed by caps 5 and 6 to form a main body 1. Inside the inner cylinder 4, the outside of the main body 1 is illuminated at a position corresponding to a window 2. Lamp 11
It is fixed on a reflecting mirror 13 which is located at a position corresponding to the window portion 2 and reflects light from the outside of the main body 1 to the side opposite to the lamp 11, and a substrate 15 which is movably provided in the contacting and separating direction with respect to the reflecting mirror 13. A camera 16 which is fixed by a band 17 and takes an image of the outside of the main body 1 via the reflecting mirror 13 is provided.

Description

[Detailed description of the device]

[0001]

[Technical field to which the device belongs]

 The present invention relates to a camera for photographing the inside of a pipe having a relatively small diameter extending in the horizontal direction, specifically, the inner diameter of which does not reach 100 mm, such as a drainage pipe for preventing landslides in a constructed land.

[0002]

[Prior art]

 Conventionally, as a camera for shooting the inside of a pipe, a camera for shooting inside a pipe with a relatively large diameter extending in the vertical direction is known, but this camera is large, and it is lowered by its own weight and is taken at the shooting position. The camera was rotated to take a picture inside the pipe, and the photographer pulled up the camera after the picture was taken.

[0003]

[Problems to be solved by the device]

 For this reason, some conventional cameras cannot be inserted into pipes with an inner diameter of less than 100 mm because they are large and do not have small turns. Especially, in the case of pipes that extend in the horizontal direction, even if they can be inserted. It was too heavy to move smoothly in the pipe. Moreover, because the watertightness was not taken into consideration, it was not possible to use it for photographing inside a pipe where water is present, such as a drainage pipe for preventing landslides in a constructed land. The in-pipe imaging device of the present invention aims to solve many of these problems.

[0004]

[Means for Solving the Problems]

 In order to achieve this object, the in-pipe image capturing device according to claim 1 of the present invention comprises a tubular main body having a transparent window and closed at both ends, and a position corresponding to the transparent window in the main body. A lamp provided to illuminate the outside of the main body, a reflecting mirror also provided inside the main body at a position corresponding to the transparent window, and a lamp also provided inside the main body so as to be movable in the contact and separation directions with respect to the reflecting mirror It is characterized by comprising a camera for taking a picture outside the main body via the.

According to the second aspect of the present invention, there is provided a pipe-shaped photographing device, wherein a cylindrical and transparent inner cylinder is fitted in a cylindrical outer cylinder having a window portion, and both ends are It is watertightly closed to form a main body, and a lamp for illuminating the outside of the body at a position corresponding to the window part and a light from the outside of the main body at a position corresponding to the window part are provided in an inner cylinder of the main body. Is fixed to a reflecting mirror that reflects in a direction opposite to the lamp, and a camera that is fixed on a substrate that is movable in the contacting and separating directions with respect to the reflecting mirror, and that shoots the outside of the main body through the reflecting mirror. Are respectively provided.

Furthermore, in addition to the configuration described in claim 2 described above, the in-pipe image capturing device according to claim 3 of the present invention has an electrical connection line (a power supply line and a signal in this specification) for the camera and the lamp. (Including the meaning of all electrical connection lines such as wires) is drawn in from the camera side end of the main body into the main body in a watertight manner, and the electric connection line to the lamp is connected to the substrate to which the camera is fixed. It is characterized in that it is connected to the lamp through a gap with the tube.

[0007]

[Embodiment of device]

 Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Here, FIG. 1 is a side view showing the photographing device, FIG. 2 is a vertical side view showing the inside of the photographing device, FIG. 3 is a vertical front view showing the same, and FIG. 4 is a block diagram showing a connection state of an electric system.

As shown in FIGS. 1 to 3, a cylindrical main body 1 of the image capturing apparatus has a cylindrical outer cylinder 3 formed of a stainless steel and having a window 2 formed therein. The inner cylinder 4 of the outer cylinder 3 is fitted in, and O-rings (not shown) are interposed at both ends of each of the cylinders 3 and 4 and screwed into female screws provided on the inner peripheral surfaces of both ends of the outer cylinder 3. Both ends of the main body 1 are closed by water-tightly providing stainless steel caps 5 and 6 provided with external male screws on the outer circumferences of the screw cylinders 5a and 6a. The window 2 and the inner cylinder 4 portion corresponding to the window 2 constitute a transparent window.

A fixing plate 8 is fixed in the inner cylinder 4 of the main body 1, a socket 10 is fixed to the fixing plate 8 via a bracket 9, and the socket 10 is fixed to the socket 10 at a position corresponding to the window 2. A lamp 11 for illuminating the outside of the body 1 is attached. Further, a support plate 12 is fixed to the fixed plate 8, and the light from the outside of the main body 1 is reflected on the support plate 12 at the position corresponding to the window portion 2 to the side opposite to the lamp 11. The reflecting mirror 13 composed of a convex mirror is fixed in a state of being inclined at about 45 degrees.

As shown in FIGS. 2 and 3, a pair of guide grooves 14 a, 14 b provided in the inner cylinder 4 are engaged with engagement protrusions 15 a, 15 b provided at four corners of the substrate 15 to provide appropriate friction. Is provided so as to be slidable, and the substrate 15 is provided so as to be movable in the contact and separation directions with respect to the reflecting mirror 13. A camera 16 is arranged on the substrate 15 so that the lens 16a faces the reflecting mirror 13 and is fixed by a fixing belt 17, and the outside of the main body 1 is photographed through the reflecting mirror 13. ing.

The cord 20 having the electrical connection wires 18 and 19 for the camera 16 and the lamp 11 is watertightly drawn into the main body 1 from the cap 6 at the camera-side end of the main body 1 (see FIG. 1). An electrical connection line 19 for 11 is connected to the socket 10 of the lamp 11 through a gap between the substrate 15 and the inner cylinder 4. As shown in FIG. 4, the code 20 is connected to the power supply device 22 via the control unit 21, while the operation unit 23 and the monitor display unit 24 are connected to the control unit 21.

Next, a specific example of the main body 1 will be described. The outer cylinder 3 is made of stainless steel with a thickness of 2 mm and has an outer diameter of 28 mm, the inner cylinder 4 is made of transparent acrylic with a thickness of 2 mm and has an outer diameter of 22 mm, and both end surfaces of the inner cylinder 4 have an outer diameter of 19 mm and an inner diameter of 18 mm. The O-rings are placed through the ring groove, and the female threads provided on the inner peripheral surfaces of both ends of the outer cylinder 3 are connected to the male threads of the stainless steel caps 5 and 6 with a maximum outer diameter of 32 mm. Are tightly screwed together to form a watertight body 1. The length of the main body 1 is 370 mm, the maximum outer diameter is 32 mm, the maximum opening length in the longitudinal direction of the window 2 provided in the outer cylinder 3 is 90 mm, and the minimum opening length is 80 mm.

Subsequently, a method of using the above-described image capturing apparatus will be described. First, in order to match the focal length of the lens 16a with the inner peripheral surface of the pipe extending in the horizontal direction, which is the object of photographing, the substrate 15 is moved in the direction of contact with and away from the reflecting mirror 13, and the reflecting mirror 13 and the camera 16 are separated from each other. Adjust the distance of. Next, the lamp 11 is turned on by the operation unit 23, the camera 16 is set in a photographing state, the cord 20 is fed out, and the main body 1 is inserted into the pipe from the front end direction. Is to be taken. Then, by rotating the main body 1, it is possible to photograph the inside of the pipe without exception.

It should be noted that the present invention is not limited to the above-described embodiment, and for example, the reflecting mirror 13 is not limited to the convex mirror and may be a flat mirror. The material of the outer cylinder 3 and the inner cylinder 4 is not limited to the combination of stainless steel and acrylic as described above.

[0015]

[Effect of device]

 As described above, according to the present invention, it is possible to take an image in a small pipe whose inner diameter extending in the horizontal direction does not reach 100 mm.

Further, according to the invention described in claim 2, since it has watertightness, it can be used even when water is present in the pipe, and there is an effect that it is possible to reliably take an image.

Further, according to the invention as set forth in claim 3, since it is possible to effectively use the gap in the main body to supply electric power to the lamp, there is an effect that the miniaturization of the main body can be realized more reliably.

[Brief description of drawings]

FIG. 1 is a side view showing a photographing device.

FIG. 2 is a vertical cross-sectional side view showing the inside of the photographing apparatus.

FIG. 3 is a vertical sectional front view showing the inside of the image capturing apparatus.

FIG. 4 is a block diagram showing a connection state of an electric system.

[Explanation of symbols]

 1 Main Body 2 Window Part 3 Outer Cylinder 4 Inner Cylinder 5, 6 Cap 8 Fixing Plate 9 Bracket 10 Socket 11 Lamp 12 Supporting Plate 13 Reflecting Mirrors 14a, 14b Guide Groove 15 Substrate 15a, 15b Engaging Projection 16 Camera 16a Lens 17 Fixing Belt 18,19 Electrical connection wire 20 Cord

Claims (3)

[Scope of utility model registration request] 1. A tubular main body having a transparent window and both ends closed, a lamp for illuminating the outside of the main body which is provided in the main body at a position corresponding to the transparent window, and a corresponding main body corresponding to the transparent window. A pipe comprising a reflecting mirror provided at a position, and a camera which is also provided in the main body so as to be movable in the direction of approaching and separating from the reflecting mirror, and which takes an image outside the main body through the reflecting mirror. Inside shooting device. 2. A cylindrical outer tube having a window portion formed therein is fitted with a cylindrical transparent inner tube, and both ends are watertightly closed to form a cylindrical main body. Inside the inner cylinder, a lamp that faces the window portion to illuminate the outside of the main body, a reflecting mirror that also faces the window portion and reflects light from the outside of the main body to the opposite side of the lamp, and this reflection An in-pipe image pickup device, comprising: a camera fixed to a substrate movably in a direction of approaching and separating from a mirror, and a camera for taking an image of the outside of the main body through the reflecting mirror. 3. An electrical connection line for the camera and the lamp is drawn in a watertight manner from the end of the main body on the camera side into the main body, and the electrical connection line for the lamp is formed between a substrate to which the camera is fixed and an inner cylinder. The pipe photographing apparatus according to claim 2, wherein the lamp is connected to the lamp through a gap.