Smoke removing device

FIELD: equipment for smoke removal from room through openings made in air funnel.

SUBSTANCE: device has body with side walls, upper and lower bases and sealing belt formed by bent parts of upper and lower bases. Device also comprises gate fitting the belt and connected to the body by hinges having common pin, torsion springs for gate opening and driving electromagnet. Electromagnet armature has end slant and compression spring. Gate is formed as two opposite flaps, namely as adjacent main and additional ones. The main flap has cover strip arranged on back side thereof and having L-shaped upper end to engage the electromagnet armature. Pivot bolt installed on the cover strip is spring-loaded relative lower ear by compression spring, wherein load from compression spring applied to pivot bolt is less than load from electromagnet armature so that after flap closing pivot bolt cooperates with upper end of electromagnet armature and lower end of pivot bolt passes in hole formed in lower base. Each flap is connected to the body in at least 4 points to provide reliably sealing of the device under increased pressure acting from inside and outside.

EFFECT: increased operational performance due to provision of smoke penetration resistance.

5 dwg

 

The invention relates to fire fighting equipment, in particular to devices for removal of smoke from the premises on the floors of the building through openings in the wall of the exhaust shafts. The main requirement for such devices - tightness of the construction, that is, the ability to resist gasproducing.

You know the smoke removal device, comprising a housing including side walls, the top and bottom of the base and formed by their limb sealing zone of the aperture, the flap adjacent to the belt and connected with the housing by a pair of hinge bushings and axles, and electric actuator for fixing the closed valve /inventor's certificate SU 1016625, F 24 F 13/08; F 23 F 13/08, 1983/. In this device, the valve is connected to the frame only 3 points and does not leak when subjected to the valve excess pressure on the outside.

The closest in technical essence is the smoke removal device, comprising a housing including side walls, the top and bottom of the base and formed by their limb sealing zone of the aperture, the flap adjacent to the belt and connected with the housing by a pair of hinge bushings and axles, torsion springs mounted on the axles with the possibility of opening the valve, and fixed to the body above the opening drive of the electromagnet, the armature of which has an edge bevel and the compression spring (the Application is EE 2 to SNiP 2.04.05-91) - the prototype.

This device is also not adapted for the perception of increased pressure both outside and inside, as the flap is connected to the frame only 3 points. In this part of the valve under the action of excess pressure will be squeezed from the body that will cause a gap between the casing and the valve and increases demoralizing. In addition, the valve on the axis of rotation is located asymmetrically, and accordingly, the sealing zone lies in two planes valve, which complicates the sealing device.

The objective of the invention is to provide improved operational characteristics of the device by creating significant resistance to demoralizing.

For this purpose, the smoke removal device includes a housing with side walls, upper and lower bases and educated them limb of the sealing zone, the valve is designed as two separate valves (main and additional related)adjacent to the belt and connected with the housing by at least two hinges, torsion springs mounted on the axes of the hinges for opening the valve and secured to the housing drive the electromagnet, the armature of which has an edge bevel and a compression spring. The main flap is secured in the closed position relative to the housing a spring-loaded anchor electro is agnita in 2 points: in the upper-middle - with the help of flashings with l-shaped upper end and the lower through bolt 2 guide lugs attached to the flashings included under the action of the spring armature of an electromagnet in the slot on the bottom of the base. The bolt is spring-loaded relative to the lower lugs compression spring with a force lower than the force of the spring armature of an electromagnet, but sufficient for the output pin from the socket housing upon actuation of the electromagnet. The main flap is held in the closed position adjacent the sash of his flashings. In addition, the main leaf is associated with an additional claw fastened to the parting line of the flap.

Thus, each of the valves associated with the hull not less than 4 points, which ensures high rigidity and tightness of the device.

The invention is illustrated by drawings, where figure 1 shows a device smoke, rear view; figure 2 is a top view; figure 3 is a section a-a in figure 1; figure 4 is a cross-section B-B in figure 1; figure 5 - node I in figure 1.

The smoke removal device includes a housing comprising side walls 1, top 2 and bottom 3 of the base and formed by their limb sealing zone 4 of the aperture, the flap is made in the form of 2 separate rotary valves - main 12 and 13 adjacent. Each leaf is connected to the frame by at least two hinges is 5. On the axes 6 are the torsion spring 7 to open the valves, and the middle part is installed in contact with the fold rollers 2 or hinges. On the housing at the top of the fixed drive electromagnet 8, the anchor of which 9 has an edge bevel 10 and the compression spring 11. The primary sash 12 on the rear side has flashings 18 with l-shaped upper end 19 for engagement with the armature of the electromagnet 9 in the closed state. The flashings are guide lugs 21, which include a king pin 20. Pin badruinen relative to the lower lugs compression spring 22 with a force lower than the force of the spring compression 10 armature of an electromagnet. In the normal state of the sash are closed. Under the action of the spring anchor pins are lowered and its lower end enters the slot 23 on the lower base 3 of the valve body. To adjust the force of the spring 22 on the bolt installed movable sleeve 24 with a locking screw 25. On the front side of the main flap has a paw 26 connecting both wings to increase the rigidity of the additional leaf. The primary sash 12 is fixed in the closed position, the spring loaded armature of an electromagnet in 2 points: in the upper middle with flashings 18 with l-shaped upper end 19 and the lower through bolt 20 with 2 guides, eyes fixed on the flashings 18, incoming modestiam spring armature of an electromagnet in the slot 23 on the lower base of the housing. The bolt 20 is spring-loaded relative to the lower lugs 21 by a compression spring 22 with a force lower than the force of the spring armature of an electromagnet, but sufficient for the output pin from the slot 23 of the housing upon actuation of the electromagnet. To increase the rigidity of the leaf are connected by a paw 26, fixed on the main door 12 at the parting line. The device is installed in the opening of the mine flush with the wall of the mine. The drive electromagnet 8, limit switch, terminal block and button are in the box and closed the lid.

In this regard, there is no need to install the grille, which is installed in the previously discussed devices to protect these elements. A significant drawback of the gratings is reduced bore valve.

The smoke removal device works in the following way:

The closure device is performed manually by the handles mounted on the frame, with the door 12 is closed last. When the closure device is compressed torsion springs 7 mounted on the axis 6. In the process of closing the upper l-shaped end 19 fixed on the main flap flashings 18 comes into contact with the bevel of the armature of the electromagnet and picks it up. When reaching the sash seal 12 to the chassis anchor electromagnet under the action of cowering when is JaME spring drops down and secures the leaf 12. This flashings 18 holds the related additional shutter 13. When lowering the armature of the electromagnet is lowered and in contact with it the upper face of the bolt 20, moving in 2 mounted on the flashings 18 lugs 21, which enters the slot 23 on the lower base of the housing. The bolt 20 is spring-loaded relative to the lower lugs 21 by a compression spring 22 with a force lower than the force of the spring armature of an electromagnet, but sufficient for the output pin from the slot 23 of the housing upon actuation of the electromagnet. The increase in the rigidity of the valves contributes paw 26 linking basic and additional sash.

Thus, upon actuation of the electromagnet exempt both wings, and under the action of the compressed torsion spring disclosed to another in the shaft or in the housing, the flow area of the mine not overlap. The upper end of the king pin when it abuts against the hook 19 flashings, performing the function of the stroke limiter of the king pin. Manual opening of the valves of the device is performed when the cover drive box by lifting the armature of an electromagnet manually.

The proposed design provides high and stable tightness due to the high stiffness of the device, in which each of the valves associated with the hull not less than 4 points, which provides increased its resistance to deformation when the action is on the device, the excess pressure from the inside as and outside.

The applicant did not know of the device with the specified essential characteristic and providing due to the mentioned factors, namely, the relationship of the valves with the case of 4 points or more, increased rigidity and improved air-tightness of the device, therefore, he believes that the claimed technical solution, namely "the smoke", meets the criterion of "inventive step".

The industrial applications of the smoke removal device can be ventilation systems of residential buildings, offices, underground garages and other objects.

An important design feature of the device is its simplicity and adaptability.

The smoke removal device, comprising a housing with side walls, upper and lower bases and educated them limb of the sealing zone, the valve adjacent to the belt and connected with the casing by hinges, torsion springs mounted on the axes of the hinges for opening the valve, and secured at the top of the housing drive the electromagnet, the armature of which has an edge bevel and a compression spring, wherein the flap is made in the form of two separate valves - primary and secondary adjacent, while the main door is on the back side flashings with l-shaped upper end for engagement with the anchor electroma the Nita and provided with king pin, installed flashings with guide lugs, the bolt is in contact with the anchor by means of a spring compression with a force lower than the force of the spring compression anchors, resulting after closing the valves, the anchor enters the pin into the slot on the bottom of the base.



 

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FIELD: equipment for smoke removal from room through openings made in air funnel.

SUBSTANCE: device has body with side walls, upper and lower bases and sealing belt formed by bent parts of upper and lower bases. Device also comprises gate fitting the belt and connected to the body by hinges having common pin, torsion springs for gate opening and driving electromagnet. Electromagnet armature has end slant and compression spring. Gate is formed as two opposite flaps, namely as adjacent main and additional ones. The main flap has cover strip arranged on back side thereof and having L-shaped upper end to engage the electromagnet armature. Pivot bolt installed on the cover strip is spring-loaded relative lower ear by compression spring, wherein load from compression spring applied to pivot bolt is less than load from electromagnet armature so that after flap closing pivot bolt cooperates with upper end of electromagnet armature and lower end of pivot bolt passes in hole formed in lower base. Each flap is connected to the body in at least 4 points to provide reliably sealing of the device under increased pressure acting from inside and outside.

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