RU2658099C1 - Device of video surveillance of internal volume of sealed object - Google Patents

Abstract

FIELD: CCTV systems.

SUBSTANCE: invention relates to the field of inspection of the internal cavity of hermetic objects of large volume containing highly toxic environmentally hazardous products, in particular after explosion in the cavity of the explosive device. Device of video surveillance of the internal volume of a sealed object contains: hermetic telescopic body, consisting of at least two cylindrical pipes, a movement mechanism installed inside the telescopic body, made in the form of a bellows, having at one end a glass with a video camera fixed in it, connected to the power supply equipment and information processing, and on the other – a flange with a central hole and sealing elements, hermetically connected to the outer end of the inner tube of the telescopic body, fixed to the bottom of the glass with a rod with removable clamps and a handle. Inside the aforementioned bellows, a second bellows is installed, which at one end, having a branch pipe, is tightly fixed to the beaker by means of a threaded sleeve, with the other end of the bellows sealed on the adapter with a central hole. Adapter is hermetically connected to the outer bellows flange. On the end surface of the outer tube, a L-shaped protrusion is formed, which enters the annular groove of the clutch hub located on the end surface of the outer pipe.

EFFECT: technical result is an increase in the reliability of the construction ensuring the safety of the work on video inspection of the hermetic cavity of the facility containing highly toxic environmentally hazardous products after the explosive device is blown up in it.

7 cl, 3 dwg

Description

The invention relates to the field of inspection of the internal cavity of sealed large-volume objects containing highly toxic environmentally hazardous products, in particular, after undermining in the cavity of an explosive device.

A device for video surveillance of the well (p. RF No. 2368774, publ. 09/27/2009), including a sealed remote unit and a sealed enclosure that contains a lamp, a secondary power supply unit, a telemetry unit, an input and sealing unit for a wireline cable, an electrical signal converter. The remote unit contains a video camera and a lens and further comprises a radiator and at least one Peltier-based cooling element in contact with it, interacting with an additionally inserted heat-conducting container into which the video camera is placed. The radiator is connected to the environment. The heat-conducting container may be further insulated.

The disadvantage of this device is that it is unsuitable for examining the internal cavities of sealed objects containing highly toxic environmentally hazardous products, both gaseous and dispersed. Violation of the tightness of such objects during their examination is not allowed.

A device for video surveillance of the internal volume of a sealed object (p. RF No. 2395825, publ. 07.27.10), containing a sealed enclosure consisting of at least two parts and having the ability to connect to the enclosure of a sealed object, while a video camera is installed inside the housing, having a movement mechanism, the sealed housing is made telescopic, the movement mechanism is a corrugated pipe, on the end of which a video camera with an infrared is mounted moving along the axis of the telescopic body backlit.

In the versions of the device:

- the telescopic housing contains at least two cylindrical pipes that enter one into the other;

- on the outer surface of the cylindrical part of the outer pipe of the telescopic housing included in the existing hole of the sealed object, annular grooves are made in which the sealing elements are located;

- the outer and inner pipes of the telescopic housing are made with an outer flange with holes in which studs with nuts and mating sleeves with a threaded hole are respectively installed;

- sealing elements are installed between the pipes of the telescopic body;

- the movement mechanism is made in the form of a corrugated sleeve having a glass at one end in which the video camera is hermetically fixed. At the other end is a flange with a central hole and sealing elements, the corrugated tube is hermetically connected to the outer end of the inner pipe of the telescopic body;

- to the bottom of the cup of the corrugated tube is fixed a rod with removable clamps and a handle, the length of which is sufficient to change the allowable longitudinal strain of the corrugated tube;

- the video camera is connected by a cable to power equipment and information processing;

- the existing central hole in the flange of the corrugated tube may be sealed by a cap.

This video surveillance device is taken as a prototype as the closest in technical essence to the claimed technical solution.

The known video surveillance device has the following disadvantages:

- when using the video surveillance device for its intended purpose, in case of damage to the corrugated pipe of the movement mechanism, the examined sealed cavity of the object will be depressurized, which is unacceptable if highly toxic environmentally hazardous substances are present in the cavity;

- after removing the fastener from the plug, which is installed in the opening of the casing of the sealed object and which is then pushed out of the hole by the end of the outer pipe of the telescopic housing of the video surveillance device, due to the lack of adhesion of the plug to the outer pipe, temporary depressurization of the cavity is possible. For example, before the sealing elements of the outer pipe of the telescopic case enter the hole, the plug may fall out of the hole under its own weight or under the influence of excessive pressure when the pressure in the cavity of the body of the sealed object is less than the external pressure.

The technical result is to increase the reliability of the design, which ensures the safety of video surveillance of the sealed cavity of the object containing highly toxic environmentally hazardous products after the explosion of an explosive device in it.

The technical result is achieved by the fact that in the video surveillance device of the internal volume of the sealed object, containing a sealed telescopic case, consisting of at least two cylindrical pipes, while the outer pipe can go into the existing hole of the body of the sealed object and connected to the body of the sealed object, the mechanism displacement mounted inside the telescopic housing, made in the form of a bellows having at one end a glass with a video camera fixed in it, connected to the device power supply and information processing, and on the other - a flange with a central hole and sealing elements, hermetically connected to the outer end of the inner pipe of the telescopic body, a rod fixed to the bottom of the glass with removable clamps and a handle, sealing elements located between the pipes of the telescopic body, ring grooves on the outer surface of the cylindrical surface of the outer pipe in which the sealing elements are located, flanges on the outer and inner pipes in which are installed fasteners with a sealed object, inside the aforementioned bellows, a second bellows is installed, which at one end having a pipe is sealed to the glass with a threaded sleeve, the other end is sealed to the adapter with the central hole with an o-ring, liner and nut, the adapter is hermetically sealed connected to the flange of the outer bellows, on the end surface of the outer pipe a L-shaped protrusion is made, which is included in the annular groove of the coupling sleeve located on the end face surface of the outer tube.

In options:

- the outer surface of the glass is made stepwise, the first bellows is fixed on the first stage, and the protective cover of the glass on the second;

- part of the first bellows connected to the glass is covered by a protective casing;

- detachable insert, consisting of two or more parts;

- fastening elements of the outer and inner pipes with a sealed object are made in the form of studs with nuts and reciprocal bushings with a threaded hole;

- on the handle there is a movement limiter;

- the central hole in the adapter can be sealed with a cap.

The installation of a second bellows, which at one end having a nozzle is hermetically mounted on the cup, and at the other end is hermetically attached to an adapter, which, in turn, is hermetically connected to the flange of the external bellows, increases the reliability of the tightness of the movement mechanism and, accordingly, the safety of the video surveillance of the cavity sealed facility.

The presence of a clutch sleeve having an annular groove and a L-shaped protrusion on the end surface of the outer pipe allows you to install the sleeve on the threaded end of the plug fixed in the opening of the sealed object with a collapsible fastener, and to engage the outer pipe with a L-shaped protrusion with the clutch sleeve. In this case, after removing the fastener from the plug, it is impossible for the plug to fall out of the hole due to its own weight or from the influence of excessive environmental pressure relative to the pressure in the internal cavity of the body of the object under examination. The release of the outer pipe with the sleeve mounted on the plug occurs after the outer pipe completely ejects the plug with the sleeve from the hole. The cylindrical part of the outer pipe with sealing elements when pushing the plug begins to go into the hole when the sealing elements of the plug have not yet come out of the hole, which eliminates the depressurization of the cavity of the sealed object.

The implementation of the liner detachable, consisting of at least two parts, allows you to install it on the end of the inner bellows, fixed to the adapter, without deforming the bellows corrugation.

The installation of a protective casing on the bellows cup protects the corrugated tube and the fastening elements of the corrugated tube to the cup from damage during video surveillance of the internal cavity of the sealed object.

The presence of a limiter on the handle provides an allowable exit of the glass with a television camera fixed in it from the outer pipe of the telescopic housing.

In FIG. 1 shows a general view of a video surveillance device when it is installed on the body of a sealed object, FIG. 2 - the same, the video camera in the working position, in FIG. 3 is a general view of the video surveillance device when examining the internal cavity of a sealed object.

The sealed object 1 has a hole in the housing in which the plug 2 is installed. From the loss of the hole, the plug 2 is fixed by a folding fastener 3 mounted on the part of the threaded end of the plug 2.

The video surveillance device consists of the following main components:

- a telescopic housing 4, consisting of an outer pipe 5 having a “G” shaped protrusion, and an inner pipe 6, between which sealing elements 7 are installed, also on the outer pipe there are sealing elements 8 and travel stops 9;

- a movement mechanism 10, consisting of:

a) a bellows 11 having a corrugated tube 12, the ends of which are fixed respectively on the glass 13 and on the flange 14 with the help of the bandages 15. The flange 14 is hermetically connected to the inner pipe 6 using the sealing elements 16 and the fastening elements 17;

b) a bellows 18 sealed to the cup 13 using the sealing elements 19 and a threaded sleeve 20. The other end of the bellows 18 is sealed to the adapter with the central hole 21 using the sealing ring 22, the insert 23 and the nut 24. The adapter 21 is hermetically connected to the flange 14 using fasteners 25 and o-rings 26;

c) a rod 27 with removable latches 28 and a handle 29 with a stop 30;

d) a protective casing 31;

- video camera 32 with a cable 33 installed tightly in the glass 13 using the sealing elements 34, the intermediate ring 35 and the flange 36 with fasteners 37;

- studs 38 with nuts 39;

- bushings 40;

- clutch bushings 41;

- power supply and information processing equipment 42.

The installation of the video surveillance device on the body of the sealed object 1 is as follows: on the plug 2, secured from falling out of the hole with a collapsible fastener 3, screw the clutch sleeve 41, install the telescopic body 4 with the movement mechanism 10, while the L-shaped protrusion on the outer pipe 5 lead into the annular groove of the clutch sleeve 41, and into the threaded holes on the housing of the sealed object 1, screw the studs 38 and screw the nuts 39 on them. Then, the collapsible nut is removed from the cap 2 fastening element 3. Wrap nuts 39 until the end surface of the flange of the outer pipe 5 contacts the body of the sealed object 1, while the plug 2 with the clutch sleeve 41 installed on it completely leaves the hole and disconnects from the outer pipe 5, and the free ends of the studs 38 go into the existing holes in the flange of the inner pipe 6. Screw the bushings 40 onto the studs 38, while the inner pipe 6 with the moving mechanism 10 fixed to it moves in the direction of the opening of the housing of the sealed object 1, then connect 33 by cable 32 to the camcorder power supply apparatus 42 and information processing.

Inspection of the internal cavity of the sealed object is as follows: use the power and information processing equipment 42, remove the latches 28 from the rod 27, move the video camera 32 into the cavity of the sealed object 1 by the handle 29 and examine it.

After video surveillance, the following work:

- remove power from the camcorder 32;

- using the handle 29, slide the moving mechanism 10 into the telescopic housing 4 with the video camera 32. Install the latches 28 on the rod 27 and remove the handle 29 from the rod 27;

- hermetically jam the central hole in the adapter 21 with a technological cap.

For a full entry of the moving mechanism 10 into the telescopic housing 4, it is necessary to remove the sleeves 40 from the studs 38 and make the nuts 39 by pulling the inner pipe 6 from the outer pipe 5. The inner pipe 6 is drawn out until an annular mark appears, indicated by an arrow with the inscription "STOP". To exclude the complete exit of the inner pipe 6 from the outer pipe 5, stroke limiters 9 are installed on the outer pipe.

At present, a prototype of a video surveillance device has been manufactured and a laboratory test has been carried out, which confirmed its operability.

Claims (7)

1. The video surveillance device of the internal volume of the sealed object, containing a sealed telescopic case, consisting of at least two cylindrical pipes, while the outer pipe can go into the existing hole of the body of the sealed object and connected to the body of the sealed object, the movement mechanism installed inside the telescopic case, made in the form of a bellows having a glass at one end with a video camera fixed in it, connected to power equipment and information processing, and on ug - a flange with a central hole and sealing elements, hermetically connected to the outer end of the inner pipe of the telescopic case, a rod fixed to the bottom of the glass with removable clamps and a handle, sealing elements located between the pipes of the telescopic case, ring grooves on the outer surface of the cylindrical surface of the outer pipe, in which sealing elements are placed, flanges on the outer and inner pipes, in which fasteners with a sealed object are installed, o characterized by the fact that a second bellows is installed inside the aforementioned bellows, which at one end having a nozzle is sealed to the glass with a threaded sleeve, at the other end the bellows is sealed to the adapter with the central hole using an o-ring, liner and nut, the adapter is hermetically connected to an outer bellows flange, an L-shaped protrusion is made on the end surface of the outer pipe, which enters the annular groove of the clutch sleeve located on the end surface of the outer pipes. 2. The device according to p. 1, characterized in that the outer surface of the glass is made stepwise, the first bellows are fixed on the first stage, and the glass casing on the second. 3. The device according to claim 1, characterized in that the part of the first bellows connected to the glass is covered by a protective casing. 4. The device according to p. 1, characterized in that the liner is detachable, consisting of two or more parts; 5. The device according to claim 1, characterized in that the fastening elements of the outer and inner pipes with a sealed object are made in the form of studs with nuts and reciprocal bushings with a threaded hole. 6. The device according to claim 1, characterized in that the handle has a travel stop. 7. The device according to claim 1, characterized in that the central hole in the adapter can be closed hermetically by a cap.

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