JPH08321975A - Wall mount underwater monitor camera - Google Patents

Abstract

PURPOSE: To easily attach/detach the camera by using a sucker to adsorb the camera onto a wall face of a water tank so as to prevent a picked-up image from being shaken by movement of water. CONSTITUTION: The camera system is made up of an underwater monitor camera 1, motors 2, 3, a transparent semi-spherical dome 4, a stationary plate 10 and a sucker 50 or the like and the system is mounted onto a wall face 60a in a water tank 60 in which water 16 is put by the sucker 50. The motor 2 drives the underwater monitor camera 1 around a vertical shaft and the motor 3 drives the camera around the horizontal shaft to allow the underwater monitor camera 1 to pick up an image in the water tank 60 in every direction. When the system is installed, the sucker 50 is in press contact with the wall face 60a of the water tank, a button 52 is pulled to form a space 51 between the wall face 60a and the sucker 50 to allow a negative pressure to adsorb the camera. Thus, the system is mounted at an optional position in the water tank and the system is simply mounted/dismounted without the use of any special tool.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a means for fixing an underwater surveillance camera for underwater photography in a water tank.

[0002]

2. Description of the Related Art Conventional underwater surveillance cameras are used by suspending them with cables or ropes.

[0003]

However, the method of suspending with a cable or rope has a problem that the camera body is easily affected by the movement of water and the photographed image is blurred and difficult to see.

[0004]

A first aspect of the present invention is a wall-mounted underwater surveillance camera in which an underwater surveillance camera is suction-fixed to a wall of a water tank with a suction cup. The second invention is the wall-mounted underwater monitoring camera according to claim 1, wherein the underwater monitoring camera is rotatable around a horizontal axis or a vertical axis with respect to the wall surface.

[0005]

【Example】

(Embodiment 1) FIG. 1 shows a wall-mounted underwater surveillance camera 100 to which the present invention is applied, which is a wall surface 60 in a water tank 60 containing water 61.
The state attached to a is shown. As shown in FIG. 1, the wall-mounted underwater surveillance camera 100 includes an underwater surveillance camera 1, motors 2, 3, a transparent and hemispherical dome 4, a suction cup 50, and the like. The motor 2 rotates the underwater monitoring camera 1 around a vertical axis as seen in FIG. 1, and the motor 3 drives the underwater monitoring camera 1
Rotate around the horizontal axis.

The dome 4 is made of, for example, an acrylic material, and has a hemispherical shape so that the underwater monitoring camera 1 can take good pictures of underwater, and refraction of light is suppressed as much as possible. As shown in FIG. 2, the dome 4 is screwed into the threaded portion 5 a of the base 5, and is kept watertight by the O-ring 6.

As shown in FIG. 2, the motor 3 is integrated with the base 5 by fixing the cover 30 to the center of the base 5 with the screw 31, and the motor 3 is watertight by the base 5 and the O-ring 19. I keep it. An annular rotary table 7 is fitted on the shaft of the motor 3, and the shaft of the motor 3 and the fixed plate 16 are two screws 1
8 (only one of which is shown in FIG. 2) is fixed, and the annular rotary base 7 and the fixed plate 16 are fixed by screws 17. Brackets 8 and 9 are welded and fixed to the annular turntable 7. The bracket 8 is provided with a hole 8a. The motor 2 is inserted by inserting the motor 2 from the side opposite to the bracket 9 of the hole 8a so as to penetrate the shaft, and fixing the cover 13 to the bracket 8 with the screw 14. Combine 8 The rotation shaft 15 is fixed to the underwater surveillance camera holding portion 15a so as to be concentric with the underwater surveillance camera holding portion 15a so as to sandwich the underwater surveillance camera holding portion 15a. One end of the rotating shaft 15 is fixed to the shaft of the motor 2, and the rotating shaft 15 can rotate integrally with the shaft of the motor 2. A bearing 11 is arranged on the bracket 9 at a position facing the hole 8 a of the bracket 8 and is fixed to the bracket 9 with a screw 12. The bearing 11 supports the other end of the rotating shaft 15. As shown in FIG. 3, the underwater surveillance camera holding portion 15a is provided with a facing flange 15b, and the underwater surveillance camera 1 is firmly held by closing the flange 15b with a bolt nut 21.

The sucker 50 has a threaded portion 55a as shown in FIG.
And the connecting member 55 having the hole 55b is passed through the hole 10a of the fixed plate 10 so that the hole 55b is located on the side of the wall surface 60a in FIG.
The button 52 is screwed and fixed to the. A plastic cover 53 is interposed between the fixed plate 10 and the suction portion 54. Initially, the button 52 of the suction cup 50 is in contact with the fixed plate 16 as shown in FIG. In this state, as shown in FIG. 1, it is put in the water tank 60 and brought into contact with the wall surface 60a. Next, the button 52 is pulled, and the space 5 is formed between the wall surface 60a and the suction portion 54.
1 is formed into the state shown in FIG. Here, the space 51 is not a vacuum, but watertightness is maintained at the contact portion between the wall surface 60a and the adsorption portion 54, and a negative pressure is generated. Due to this negative pressure, the suction cup 50 adheres to the wall surface 60a, and the wall-mounted underwater monitoring camera 100 is fixed to the wall surface 60a. Although four suction cups 50 are used in FIG. 3, three suction cups 50 may be used as long as the suction force to the wall surface 60a is sufficient. Needless to say, five or more suction cups may be used if they do not interfere with each other.

In FIG. 2, the wirings 2a, 3a and 1a of the motors 2 and 3 and the underwater monitoring camera 1 are connected to the water tank 6 respectively.
It is connected to a power source (not shown) arranged outside 0.

As shown in FIG. 1, after the wall-mounted underwater surveillance camera 100 is placed at an appropriate position in the water tank 60, the motors 2 and 3 are driven to rotate the annular rotary table 7 and the rotary shaft 15. The underwater surveillance camera 1 can face any direction in the water tank 60. When changing the shooting direction, the motor 2 or the motor 3 is driven to point the underwater monitoring camera in the desired shooting direction. Therefore, the underwater monitoring camera 1 can take images in all directions in the water tank 60.

(Embodiment 2) In FIG. 2, the motor 3 and the annular rotary base 7 are removed, and the brackets 8 and 9 are directly fixed to the base 5 as shown in FIG. As shown in FIGS. 4 and 5, the fixing plate 10 is provided with a hole 10b, and as shown in FIG. 5, the base 5 is provided with a through hole 5b through which the shaft 90 penetrates.

As shown in FIG. 5, the shaft 90 is fixed to the base 5 by a pin 90a so as not to rotate. As shown in FIG. 5, the bearings 91 are fixed to the fixing plates 10 on both the left and right sides of the base 5 with bolts and nuts 92. The shaft 90 penetrates the through hole 5b and is supported on both sides by two bearings 91. As shown in FIG. 4, a tap hole 93 a is provided in the piece 93 of the bearing 91 on the side closer to the fixed plate 10, and the screw 9 with knob is provided.
By screwing 4 in, the shaft 90 is fixed to the fixed plate 10 so as not to rotate.

In the first embodiment, the motors 2 and 3 shown in FIG. 2 were driven to direct the underwater monitoring camera 1 in the required direction.
In the second embodiment, the motor 2 is driven, the screw 94 with the motor knob is loosened, and the shaft 90 is rotated to direct the underwater monitoring camera 1 in the required direction. When the underwater surveillance camera 1 faces the proper direction, the knob screw 94 is tightened to fix the shaft 90.

In FIGS. 4 and 5, a hinge may be used in place of the bolt nut 92 of the bearing 91. Also,
Instead of using the motor 2, a bearing such as the bearing 91 may be provided on the flange 8 so that the rotating shaft 15 can be manually rotated and fixed.

[0015]

【The invention's effect】

(First invention) When the present invention is applied, since the underwater monitoring camera does not swing or vibrate in the water tank, the image is not shaken, so that the water tank can be monitored well. Also, since the wall-mounted underwater surveillance camera is suction-fixed to the wall using a suction cup, it can be mounted at any position in the water tank.
Further, it is possible to easily attach and detach without requiring any particular device or instrument. (Second Invention) Two motors are required in the first invention, but in the second invention, only one motor is required or one motor may not be provided, and the cost can be reduced by reducing the number of parts.

[Brief description of drawings]

FIG. 1 is a partially longitudinal side view showing a state in which a wall-mounted underwater monitoring camera to which the first invention is applied is adsorbed to a wall surface of a water tank.

FIG. 2 is a partially longitudinal side view of a wall-mounted underwater surveillance camera to which the first invention is applied.

FIG. 3 is a view on arrow III-III in FIG.

FIG. 4 is a schematic vertical sectional side view of a wall-mounted underwater surveillance camera to which the second invention is applied.

5 is a view taken along the line VV of FIG.

[Explanation of symbols]

 1 Underwater monitoring camera 2 Motor 3 Motor 50 Sucker 60 Water tank 60a Wall surface 91 Bearing 100 Wall mount type underwater monitoring camera

Claims (2)

[Claims] 1. A wall-mounted underwater surveillance camera in which an underwater surveillance camera is suction-fixed to a wall of a water tank with a suction cup. 2. The wall-mounted underwater surveillance camera according to claim 1, wherein the underwater surveillance camera is rotatable about a horizontal axis or a vertical axis with respect to the wall surface.