JP3135246B2 - Camera device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial application field) The present invention relates to a camera device in which a monitoring camera (ITV camera) is installed at a high place.

(Prior Art) An ITV camera for monitoring a discharge state of a dam, a premises, and the like is generally installed above a pole or the like and configured to monitor a monitoring target from a high place.

Such a conventional camera device is shown in FIGS.

In these figures, 1 is a pole erected on a base 2 such as the ground, and 3 is an IT attached to the tip of the pole 1.
V camera, 4 is an inspection deck for maintenance inspection of ITV camera 3,
5 is a handrail.

According to the camera device described above, when performing maintenance and inspection of the ITV camera 3, the worker climbs up the pole 1 with the handrail 5, opens the elevating door 7 provided on the inspection deck 4 and climbs up to the inspection deck 4 for maintenance and inspection. I was working.

However, since the inspection deck 4 is provided at a high place, there is a problem in work safety, and because the space of the inspection deck is narrow, maintenance and inspection work has been difficult.
In particular, when the surface of the inspection deck 4 is frozen, it is a difficult task to further increase the danger. On the other hand, if the space for the inspection deck 4 is widened and the strength of the device is large enough not to be shaken by wind pressure, there is a problem that the equipment becomes large.

(Problems to be Solved by the Invention) As described above, in the above-described apparatus, the operator needs to perform maintenance and inspection work of the camera at a high place where the camera is installed. Had become.

The present invention has been made in view of such conventional disadvantages, and an object of the present invention is to provide a camera device capable of safely and easily performing maintenance work on a camera installed at a high place.

[Structure of the Invention] (Means for Solving the Problems) The camera device of the present invention comprises: a pole erected on a base;
An elevating platform slidably provided on the pole and having a camera mounted thereon, moving means for moving the elevating platform up and down along the pole, fixing means for fixing the elevating platform to the pole, and the camera It is characterized in that a holding mechanism is provided separately from fixing of the fixing means so as not to drop the elevator at a position where imaging is performed, and a stopper mechanism capable of releasing the holding state is provided.

(Operation) In the present invention, at the time of monitoring by the camera, the elevator is raised and the camera is installed above the pole. At this position, the lifting mechanism is held by the stopper mechanism so as not to fall. Further, when performing maintenance and inspection of the camera, the holding state of the stopper mechanism can be released, and the elevator can be lowered to lower the camera below the pole.

(Embodiment) Hereinafter, an embodiment of the present invention will be described in detail with reference to FIG. 1 to FIG.

FIG. 1 is a side view of the camera device, and FIG. 2 is a top view of the camera device.

In these figures, 11 is an ITV camera, 12 is a pole, 1
3 is a lifting platform, 14 is a wire, 15 is a winding device for the wire 14, 16
Is a stopper mechanism.

The pole 12 is formed in a cylindrical shape, and the base 18 such as the ground is
It is erected in. This pole 12 has a flange 19 at the bottom.
A ridge 20 is formed on the peripheral surface from the flange 19 to the upper part of the pole 12.

The elevating table 13 includes a cylindrical portion 22 into which the pole 12 is inserted and a pedestal 23 to which the ITV camera 11 is attached.

The inner wall surface of the cylindrical portion 22 is a wheel that contacts the peripheral surface of the pole 12.
A guide provided with a plurality of 25 and fitted with the ridge 20
26 are provided. Therefore, the cylindrical portion 22 can be smoothly moved up and down along the ridge 20. Also, pedestal 23
, The ITV camera 11 is attached so that the direction can be adjusted vertically.

One end of the wire 14 is fixed to the cylindrical portion 22 of the lift 13, the wire 14 is wound around a pulley 28 provided at the upper end of the pole 12, and the other end is connected to the winding device 15. Accordingly, the take-up device 15 is rotated by using the handle 30 or an electric motor (not shown), and the lift 14 is raised by winding the wire 14.
The lifting platform 13 is lowered by releasing the take-up.
The winding device 15 has a worm and a worm wheel (not shown). The worm rotated by the handle 30 rotates the worm wheel, and the wire 14 is wound by the rotation of the worm wheel. , And release it. Therefore, the elevator 13 can be moved up and down with a small force, and the elevator can be moved at a desired height.
13 is fixed to the pole 12. That is, the wire 14 and the winding device 15 constitute a moving means of the lifting platform 13,
Fixing means for fixing the lifting platform 13 at a desired height of the pole 12 is configured.

As shown in FIG. 3, the stopper mechanism 16 includes a mounting bracket 30 having a U-shaped cross section, a stopper 33 whose intermediate portion is rotatably held on the mounting bracket 30 via a shaft 31, and a tip side of the stopper 33. The spring 35 is provided between the spring 35 and the peripheral surface of the pawl 12 and pulls the distal end of the stopper 33 downward.
Wire 38 fixed to the base end of the
It is composed of In the stopper mechanism 16, the stopper 33 is positioned in a state shown by a solid line in FIG. 3 by the action of the spring 16 in the normal state, and the drop of the elevator 13 is prevented by the stopper 33. Therefore, even if the wire 14 is cut while the elevator 13 is positioned above the pole 12, the elevator 13 does not fall. In addition, when it is desired to lower the platform 13, the platform 13 is slightly raised from the position shown in FIG.
Is moved, and the wire 38 is pulled downward while holding the handle 37, and the stopper 33 is positioned in a state shown by a chain line in FIG. Thus, the lift 13 can be lowered without being hindered by the stopper 33.

 Next, the operation of the camera device will be described.

In the state where the monitoring by the ITV camera 11 is performed, the camera 11 is installed on the pole 12 as shown in FIG. In this case, as described above, since the winding device 15 that winds the wire 14 is locked by the worm that engages with the worm wheel, the elevator 13 is fixed to the upper portion of the pole 12. I have. Further, even if the wire 14 is cut, the drop of the elevator 13 is prevented by the stopper 33.

When performing maintenance and inspection of the ITV camera 11,
Is positioned in the state shown by the chain line shown in FIG.
The take-up device 15 is rotated in a direction in which the lifting device 14 is released, and the elevator 13 is lowered. As a result, the lift 13 descends until it comes into contact with the flange 19, and the ITV camera 11 is positioned at a position where maintenance work can be performed well.

After the maintenance and inspection work is completed, the wire 14 is wound by the winding device 15, and the lift 13 is raised to the position shown in FIG. When the lift 13 is raised, a stopper is provided at the upper end of the cylindrical portion 22.
Since the tip of 33 is pushed up, the lift 13 rises without being hindered by the stopper 33, and is locked by the stopper mechanism 16 when the lift 13 is positioned above the stopper 33.

As described above, in the camera device of this example, during monitoring,
When the ITV camera 11 is positioned at a high place and the ITV camera 11 is to be maintained and inspected, the ITV camera 11 can be lowered. Also, the maintenance and inspection work can be performed safely and easily. Therefore, even if it is necessary to perform regular maintenance of the mechanical unit, for example, when the ITV camera 11 is installed via a camera turning mechanism unit (not shown), the labor required for the periodic maintenance is greatly reduced. Is done.

In this example, the wire 14 and the winding device 15 are used as means for moving the lifting platform 13 up and down.However, the invention is not limited to this, and a method using a chain and a chain gear or a rack and a pinion are used. Various moving means such as a method can be used.

[Effects of the Invention] As described above, in the camera device of the present invention, when the camera is fixed to a high place where the image is taken by the camera by the moving means by the pull-up fixing means, the lifting platform is prevented from falling. Is held by the stopper mechanism for safety. In addition, when performing maintenance of the camera, the holding state of the stopper mechanism is released, and the camera can be lowered to the lower part of the pole by lowering the elevator, and the maintenance and inspection can be performed safely and easily at this position. be able to.

[Brief description of the drawings]

1 to 3 are views for explaining one embodiment of the present invention. FIGS. 1 and 2 are side and top views of a camera device, and FIG. 3 is an enlarged view of a circle A in FIG. FIG. 4 and 5 are a side view and a top view of a conventional camera device. 11 ... Camera, 12 ... Pole 13 ... Elevator, 14 ... Wire 15 ... Winding device, 18 ... Base

Claims (1)

(57) [Claims] A pole erected on a base, a platform slidably mounted on the pole, and on which a camera is mounted; moving means for moving the platform up and down along the pole; Fixing means for fixing a table to the pole, and a stopper capable of holding the fixing means separately from the fixing of the fixing means so as not to drop the elevating table at a position where the image is taken by the camera, and capable of releasing the holding state A camera device, comprising: a mechanism.