JP2597185Y2 - In-pipe inspection camera device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an in-pipe inspection camera device capable of visually inspecting the inside of a gas pipe, a water pipe, a sewer pipe, and the like, and particularly to an improved camera head structure.

[0002]

2. Description of the Related Art An in-pipe inspection camera apparatus used for inspection of gas pipes, water pipes, and water pipes captures an image of the inside of a pipe by a television camera section (head section) that has entered the pipe, and sends it to an external monitor via a cable. An image signal is transmitted so that the inside of the tube can be visually observed. Thereby, it is possible to detect a damaged state or the like of the pipe inner wall and the pipe connection part.

FIG. 3 is an explanatory view showing a usage form of the in-pipe inspection camera device. The camera head unit 1 is mounted on the tip of a flexible cable 2. The base end of the cable 2 is connected to a camera control unit and a monitor (not shown) on the ground. The camera head 1 is inserted from the opening 12 of the tube 11 buried in the ground, and is operated to be pushed.

[0004]

As described above, the camera head unit 1 is inserted (advanced) or pulled out (retracted) into / from the inside of the tube 11; Impacts or impacts at the seams of the pipe. Inside the camera head unit 1, an imaging camera using a solid-state imaging device, an illumination lamp, and a drive circuit for these electronic devices are incorporated. Some camera driving circuits and the like are relatively resistant to impacts, but illumination lamps have a high temperature filament, so there is a limit to their resistance to impacts and the like, and their life is shortened due to impacts. Therefore, an object of the present invention is to provide an in-pipe inspection camera device that can reduce an external impact on internal components of a camera head unit.

[0005]

According to the present invention, there is provided a component mounting structure in which an imaging camera directed forward at an axial center position, and a plurality of illumination sources which are also directed forward are arranged around the imaging camera. A head cap that covers the imaging camera and the illumination source and that is attached to the structure, and that transmits an imaging signal of the imaging camera to a remote monitor unit via a cable, wherein the structure and the head cap The gap between them has a structure in which a cushioning material for cushioning the impact from the head cap is arranged.

[0006]

According to the above-mentioned means, since the cushioning material is provided inside the head cap, the shock to the electric parts built in the head portion is relieved, which is effective in preventing the shortening of the life and the occurrence of failure.

[0007]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1A is an external view of a camera head unit 100 according to one embodiment of the present invention, and FIG. 1B shows a state where a head cap unit 102 is detached. The camera head unit 100 includes a component mounting structure 101, a head cap unit 102, and a plurality of cushioning members 103 arranged in a gap between the head cap unit 102 and the component mounting structure 101.

The head cap portion 102 is a dome-shaped tip portion. At the center of the axis, a window 20 corresponding to the front of the imaging camera and a plurality of windows 21a, 21b around the window 20 corresponding to illumination lamps. … Has been established.

As shown in FIG. 2, the component mounting structure 101 has an imaging camera 31 disposed at an axial center position and illumination lamps 32a and 32b. In the gap between the component mounting structure 101 and the head cap unit 102, a cushioning material 103 is disposed at a position where it does not interfere with illumination or imaging.

The component mounting structure 101 is provided with an imaging camera mounting portion 41, an optical system mounting portion 42, and a lighting fixture mounting portion 43, and a connection line or the like of these electronic components is connected to a cable ( (Not shown). The cable is led to a camera control unit and a monitor in a remote unit. In order to prevent water from entering from outside, a packing 51 is provided or a glass seal 52 or the like is provided at an electronic component disposition position. When the head cap 102 is covered by covering the structure 101,
There are various fixing means. For example, fixing with an adhesive, or in some cases, fixing with a screw. As the material of the cushioning material, there are a cushioning method using rubber and a cushioning method using a spring. In particular, the material may be selected according to the use environment.

[0012]

[Effect of the invention] As described above, according to the invention,
It is possible to reduce an external impact on the internal components of the camera head, and to prevent a reduction in the life of the electric components built in the head and a failure.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention.

FIG. 2 is a diagram showing a cross section of one embodiment of the present invention.

FIG. 3 is an explanatory view showing a use state of a conventional in-pipe inspection camera device.

[Explanation of symbols]

100: camera head, 101: component mounting structure,
102: head cap portion, 103: cushioning material, 20, 2
1a-4c ... windows.

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁶ , DB name) H04N 5/225

Claims (1)

(57) [Scope of request for utility model registration] An imaging camera directed forward at an axial center position, a component mounting structure around which a plurality of illumination sources also directed forward are arranged and held around the imaging camera, and the imaging camera and the illumination source are arranged. And a head cap attached to the structure, wherein the in-pipe inspection camera transmits an imaging signal of the imaging camera to a remote monitor unit, wherein at least the imaging camera and the imaging of the assembly
Presence of multiple lighting sources set forward around the camera
The gap between the front and surrounding front SL head cap standing, tube inspection camera apparatus characterized in that a buffer material to cushion the impact from the head cap.