JP2010096718A - Forcing-type pipe inside inspecting camera device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a forcing-type pipe inside inspecting camera device made compact as a whole which is easy to handle and is capable of attaining simplification of constitution, stabilization of operation and cost reduction. <P>SOLUTION: The winding frame part 11a, of which the inner peripheral part is formed as a winding frame of a hard cable 12, is provided to a bottomed cylindrical body frame 11 and a display monitor 15 is provided fixed in the empty space 11s, provided to the central part surrounded by the winding frame part 11a of the inner base 11c of the body frame 11. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a push-type in-pipe inspection camera device suitable for application to inspection of, for example, water pipes, sewage pipes, gas pipes and the like.

  As an in-pipe inspection camera device for inspecting water pipes, sewer pipes, gas pipes, etc., a camera head is attached to the tip of a hard cable with elasticity, and the camera head is inserted into the pipe to be inspected with a hard cable, There is a push-type in-pipe inspection camera device called a hard cable camera that takes an image of the inside of a tube with a camera head.

  This push-type in-pipe inspection camera device was photographed with a camera head and a cable storage mechanism that can store a hard cable of a predetermined length with rigidity, for example, in a wound state and draw out the amount required for inspection. A display mechanism for displaying an image on a monitor screen is provided.

  Since the cable storage mechanism handles a hard cable having rigidity and a large elasticity, the cable storage mechanism is configured to allow the hard cable to be taken in and out by rotating a large-diameter winding drum. This structure consists of a rotation support mechanism for the take-up drum that rotatably supports the take-up drum, a display mechanism independent of the take-up drum, and a display mechanism for each transmission line of the video signal and the power source contained in the hard cable. Control circuit and slip ring for circuit connection to the power supply circuit, the overall configuration of the apparatus is increased in size, the circuit and configuration are complicated, and the factors of circuit connection instability due to long-term use are attached. There was a problem.

Conventionally, there is a hard cable camera system characterized by the structure of a camera head as an in-pipe inspection camera device including the cable storage mechanism and the display mechanism (see Patent Document 1). In addition, as a technique for storing a hard cable so that it can be fed out in a wound state, there is an optical fiber cable winding frame structure (drop box) characterized by a cable take-out mechanism (see Patent Document 2).
JP 2008-028722 A JP 2008-171003 A

  As described above, the conventional push-type in-pipe inspection camera device has a rotating drum around which a hard cable is wound, and the display monitor is provided at a position separated from the rotating drum. However, there is a problem in that the circuit and the configuration are complicated, and the unstable factor on the circuit connection with respect to the long-term use due to the slip ring is attached.

  It is an object of the present invention to provide a push-in type in-pipe inspection camera device that solves the above problems, makes the entire device compact, facilitates handling, simplifies the configuration, stabilizes operation, and reduces costs. And

  The present invention includes a bottomed cylindrical main body frame having an annular winding frame portion and a circular opening, and a video signal transmission line, and is wound around an inner peripheral portion of the winding frame portion to form the opening. A hard cable having elasticity that is taken in and out from the part, a camera head that is attached to the tip of the hard cable and connected to the transmission line, and is exposed from the opening in the main body frame A push-type in-pipe inspection camera device comprising: a display monitor circuit-connected to the transmission line; and a stand provided on the main body frame and supporting the monitor screen of the display monitor inclined obliquely backward. Features.

  According to the push-type in-pipe inspection camera device of the present invention, the entire device can be made compact and easy to handle, and the configuration including the circuit can be simplified, the operation can be stabilized, and the product can be made inexpensive.

  Embodiments of the present invention will be described below with reference to the drawings. 1 is a perspective view showing a configuration of a push-in type in-pipe inspection camera device 1 according to an embodiment of the present invention, FIG. 2 is a plan view thereof, and FIG. 3 is a side view thereof. 4 is a side view showing the configuration of the stand portion of the in-pipe inspection camera device 1, and FIG. 5 is a plan view thereof.

  As shown in FIG. 1, a push-in tube inspection camera device 1 according to an embodiment of the present invention includes a bottomed cylindrical main body frame 11 having an annular winding frame portion 11a and a circular opening portion 11b, and a video signal. A hard cable 12 having elasticity and enclosing the transmission line and the power supply line, wound around the inner peripheral part of the winding frame part 11a, and taken in and out of the opening part 11b, and the distal end part of the hard cable 12 The camera head 13 attached and circuit-connected to the transmission line and the main body frame 11 are provided to be exposed from the opening 11b, and are connected to the transmission line at the base end of the hard cable 12. A display monitor 15 and a stand 20 provided on the main body frame 11 and supporting the monitor screen 15a of the display monitor 15 in a state where the monitor screen 15a is inclined obliquely rearward. It is made.

  As shown in FIG. 2, the push-type in-pipe inspection camera device 1 shown in FIG. 1 has a central portion (the central portion of the reel portion 11a) surrounded by the reel portion 11a of the inner bottom surface 11c of the main body frame 11. An empty space 11s is provided, and the display monitor 15 is fixedly provided in the empty space 11s.

  As shown in FIG. 3, the monitor screen 15a of the display monitor 15 has a recessed portion recessed from the opening surface of the opening 11b, the opening 11b serving as a display window, and the reel 11a serving as a shielding wall for external incident light. It is provided as. As shown in FIGS. 3 to 5, the display monitor 15 is provided with a monitor screen 15a on the front surface of the box-shaped housing and various external connection interfaces on the side surface. The rear side of the housing includes the external connection interface and is exposed on the outer bottom surface 11e of the main body frame 11. Here, as external connection interfaces, a plug 15f for supplying external power and a plug 15g for outputting video signals are shown. As shown in FIG. 5, a cushion rubber 25 serving as an end stopper is provided on the upper side surface of the housing when the stand 20 is in a standing state.

  In the display monitor 15, one end of each of the video signal transmission line and the power transmission line contained in the hard cable 12 wound around the winding part 11a of the main body frame 11 is plugged in via the plug 15e shown in FIG. Connected. The other end side of each transmission line included in the hard cable 12 is plug-in connected to the plug of the camera head 13.

  On the outer peripheral surface of the annular winding frame portion of the main body frame 11, the monitor screen 15 a of the display monitor 15 is aligned in the vertical direction so that the portable grip portion 23 can be attached to the upper portion. As shown in FIGS. 2 and 3, two fixing legs 19 are provided at the upper part and one fixing leg 19 at the lower part on the outer bottom surface 11 e of the main body frame 11. It is possible.

  Further, the outer bottom surface 11e of the main body frame 11, as shown in FIG. 3 to FIG. 5, is used to tilt the monitor screen 15a of the display monitor 15 diagonally rearward when the push-type in-tube inspection camera device 1 is used. A movable leg) 20 is provided to be rotatable between a folding position substantially parallel to the outer bottom surface 11e and a standing leg position shown in FIG.

  By setting the stand (rotating leg) 20 to the standing state shown in FIG. 3, the monitor screen 15a of the display monitor 15 is inclined obliquely rearward at a predetermined angle with respect to the installation surface (EF), thereby opening 11b. The monitor screen 15a exposed from the screen is easily viewed.

  In the configuration example shown in FIG. 3, a part of the box-shaped housing of the display monitor 15 is attached to the main body frame 11 so as to be exposed from the outer bottom surface 11e of the main body frame 11, and the housing exposed from the outer bottom surface 11e. Various external connection interfaces are provided on the side of the body. Here, as an external connection interface, a plug 15f for supplying external power and a plug 15g for outputting video signals are provided. The external power supply plug 15f is plugged in via the power cable to the external power supply plug 15f, and an external device (for example, an image recording device) (not shown) is transmitted to the video signal output plug 15g. Plug-in connection is made through a cable. The display monitor 15 includes a charging battery that is charged and controlled by an external power source supplied to the plug 15f, and enables operation by the battery power source.

  The cable guide 17 constitutes a cable hook of the hard cable 12 wound around the winding frame portion 11a. The cable hook 17 is opened from the winding frame portion 11a to the opening portion 11b when the hard cable 12 wound around the inner peripheral portion of the winding frame portion 11a is led out from the opening portion 11b to the outside of the winding frame portion. Each time the hard cable 12 for one turn is pulled out from the cable, the hard cable 12 drawn out to the opening 11b is caught by the curved portion (hook-shaped portion) of the cable guide 17, and thereby the inner portion of the winding frame portion 11a. The succeeding hard cable 12 that has been wound out jumps out of the opening portion 11b continuously by the elastic action of the cable, and prevents a problem that it is unnecessarily derived.

  In the push-type in-pipe inspection camera device 1 having the above-described configuration, when the device is not used, the hard cable 12 including the camera head 13 is housed in the reel portion 11a.

  When the inside of the inspection target tube is inspected using the push-type in-pipe inspection camera device 1, the camera head 13 attached to the front end of the hard cable 12 housed in the winding frame portion 11 a of the main body frame 11 together with the hard cable 12. The camera head 13 pulled out from the opening 11b is inserted into the inspection target tube while operating the hard cable 12. The camera head 13 and the hard cable 12 are pushed into the inspection target tube while operating the hard cable 12, and the inside of the inspection target tube is photographed by the camera head 13.

  The video signal in the tube photographed by the camera head 13 is input to the display monitor 15 via the transmission line included in the hard cable 12, and thereby the image in the tube photographed by the camera head 13 is displayed on the monitor screen 15a.

  At the time of this in-pipe inspection, as shown in FIG. 3, the monitor screen 15a of the display monitor 15 is set in a predetermined position with respect to the installation surface (EF) of the in-pipe inspection camera device 1 by placing the stand (rotating leg) 20 in the standing state. It is set to be inclined obliquely backward at an angle of. Further, as shown in FIG. 3, the monitor screen 15a is provided in a recessed portion that is recessed from the opening surface of the opening portion 11b, with the opening portion 11b serving as a display window and the reel portion 11a serving as a shielding wall for external incident light. . As a result, the monitor screen 15a is set at an inclination angle at which it can be easily seen, and is surrounded by the reel portion 11a and is in a position recessed from the opening portion 11b, so that it is not easily affected by external incident light. The image can be confirmed, and the in-pipe inspection with good visibility can be performed.

  In the embodiment described above, the inclination angle of the monitor screen 15a when the stand 20 is in the standing state is constant with respect to the installation surface (EF) of the in-tube inspection camera device 1, but the inclination angle of the monitor screen 15a is adjusted. By making it possible, in-pipe inspection with better visibility can be performed. A specific example in which the inclination angle of the monitor screen 15a is adjustable is shown in FIG. Here, the stand 20 is provided with a mechanism for making the leg length variable so that the tilt angle of the monitor screen 15a can be adjusted. The stand 20 shown in FIG. 6 divides the leg into two parts, is provided with a slide long hole 20s in the installation-side leg 20A, and is provided on the in-tube inspection camera device 1 via the hinge portion 21 so as to be rotatable. The leg 20B is provided with a tightening screw 26 for adjusting and fixing the length of the leg so that the length of the leg can be arbitrarily adjusted within the range of the long hole 20s provided in the leg 20A. By adjusting the length of the legs, it is possible to arbitrarily set the inclination angle (viewing angle) of the monitor screen 15a that is surrounded by the winding frame portion 11a and is recessed from the opening portion 11b. Here, the configuration example in which the inclination angle of the monitor screen 15a is set by adjusting the length of the leg is shown, but the configuration is not limited thereto, and for example, a configuration in which the leg opening angle of the stand 20 can be arbitrarily set may be employed.

  The push-in type in-pipe inspection camera device 1 according to the embodiment of the present invention described above has a configuration in which a reel portion 11a having an annular inner periphery along the outer periphery of a body frame 11 having a bottomed cylindrical shape as a reel is provided. For this reason, a rotating drum around which the hard cable is wound is not required, and the housing portion of the elastic hard cable 12 can be configured compactly. Further, it is surrounded by the winding frame portion 11a of the inner bottom surface 11c of the main body frame 11. Since the empty space 11s is provided in the broken central portion (the central portion of the reel portion 11a) and the display monitor 15 is fixedly provided in the empty space 11s, the slip ring mechanism is not required and the display is performed. The entire system configuration including the monitor is compactly configured to facilitate handling and to enable stable and reliable operation over a long period of time. Furthermore, the monitor screen 15a of the display monitor 15 is configured such that the opening 11b serves as a display window and the reel 11a serves as a shielding wall for external incident light in a recessed portion that is recessed from the opening surface of the opening 11b. Therefore, it is possible to display the in-pipe video with good visibility.

The perspective view which shows the structure of the push-in type in-pipe inspection camera apparatus which concerns on embodiment of this invention. The top view which shows the structure of the push-in type in-pipe inspection camera apparatus which concerns on the said embodiment. The side view which shows the structure of the push type in-pipe inspection camera apparatus which concerns on the said embodiment. The side view which shows the structure of the stand part of the push type in-pipe inspection camera apparatus which concerns on the said embodiment. The top view which shows the structure of the stand part shown in the said FIG. The side view which shows the other structural example of the stand of the pushing type in-pipe inspection camera apparatus which concerns on the said embodiment.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Push-in type tube inspection camera apparatus, 11 ... Main body frame, 11a ... Winding frame part, 11b ... Opening part, 11c ... Inner bottom face, 11e ... Outer bottom face, 11s ... Empty space, 12 ... Hard cable, 13 ... Camera head, DESCRIPTION OF SYMBOLS 15 ... Display monitor, 15a ... Monitor screen, 20 ... Stand (rotating leg), 21 ... Hinge part.

Claims (5)

A bottomed cylindrical body frame having an annular winding frame and a circular opening; and
A hard cable having elasticity, including a transmission line of a video signal, wound around the inner periphery of the winding frame, and taken in and out of the opening;
A camera head attached to the tip of the hard cable and connected to the transmission line by a circuit;
A display monitor provided in the main body frame exposed from the opening, and connected to the transmission line by a circuit;
A stand that is provided on the main body frame and supports the monitor screen of the display monitor in an obliquely inclined state;
A push-type in-pipe inspection camera device characterized by comprising:   2. The push-type in-pipe inspection camera device according to claim 1, wherein an empty space is formed in a central portion surrounded by the winding frame portion of the main body frame, and the display monitor is provided in the empty space.   The push-type in-pipe inspection camera device according to claim 2, wherein the display monitor is provided so that an inclination angle of the monitor screen can be adjusted.   The push-type in-pipe inspection camera device according to claim 1, wherein the stand is foldable on an outer bottom portion of the main body frame.   3. The monitor screen according to claim 2, wherein the opening is provided as a display window and the reel is used as a shielding wall for external incident light in a recessed portion recessed from the opening surface of the opening. 3. The push-type in-pipe inspection camera device according to 3.

Images