CN214404726U

CN214404726U - Smoke-discharging fire-proof valve

Info

Publication number: CN214404726U
Application number: CN202120299521.7U
Authority: CN
Inventors: 石万秋
Original assignee: Shandong Universal Air Conditioning Equipment Co ltd
Current assignee: Shandong Universal Air Conditioning Equipment Co ltd
Priority date: 2021-02-02
Filing date: 2021-02-02
Publication date: 2021-10-15
Anticipated expiration: 2031-02-02

Abstract

The utility model relates to a fire prevention valve discharges fume, this fire prevention valve discharges fume relates to the air conditioning technology field, this fire prevention valve discharges fume includes the rectangle connecting pipe, the fixed temperature sensor that is provided with on the rectangle connecting pipe inner wall, the top of rectangle connecting pipe is provided with a cavity work casing, be provided with an actuating mechanism in the cavity work casing, the side is provided with a valve block that is connected with actuating mechanism respectively about in the rectangle connecting pipe, be provided with a stop gear who is used for blocking the valve block and avoids the valve block air current to dash out on every valve block, rectangle connecting pipe inner wall both sides are provided with one respectively and stop gear matched with draw-in groove, when the air current strikes stop gear, stop gear can get into in the draw-in groove.

Description

Smoke-discharging fire-proof valve

Technical Field

The utility model relates to a fire prevention valve technical field, concretely relates to fire prevention valve discharges fume.

Background

At present, ventilation pipelines are installed in high-rise buildings, smoke exhaust fireproof valves are arranged in the ventilation pipelines, the smoke exhaust fireproof valves are installed on smoke exhaust branch pipes of a mechanical smoke exhaust system and are in a closed state at ordinary times, when a fire disaster occurs, the smoke exhaust system is started along with the opening of the smoke exhaust system when the temperature rises to a set value, a large amount of smoke and energy are exhausted, and when the temperature of the smoke in the pipelines reaches 280 ℃, the smoke exhaust fireproof valves can be automatically closed to prevent fire from spreading. The existing smoke-discharging fire-proof valve comprises a valve body and an actuating mechanism fixed outside the valve body (generally fixed above the valve body), wherein a valve block is closed by rotating the valve block in a channel of the valve body, a rotating shaft is arranged in the middle of the valve block, and when the pressure of airflow on two sides of the rotating shaft of the valve block is unequal, the valve block is pushed open to overturn the valve block, so that the smoke cannot be blocked and discharged, and the fire spread is caused.

In order to solve the problem, the utility model discloses in provide a fire prevention valve discharges fume.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art's is not enough, adapts to reality needs, provides a fire damper discharges fume to solve and let the closure plate upset because closure plate wherein one side receives great air current, thereby can't play isolated cigarette exhaust effect.

In order to achieve the technical purpose, the embodiment of the utility model provides a smoke exhaust fire damper, which comprises a rectangular connecting pipe, wherein a hollow working shell is arranged at the top of the rectangular connecting pipe, and an actuating mechanism is arranged in the hollow working shell;

the left side and the right side in the rectangular connecting pipe are respectively provided with a valve plate connected with the actuating mechanism, and each valve plate is provided with a limiting mechanism used for clamping the valve plate to prevent the valve plate from being flushed by airflow;

and the two sides of the inner wall of the rectangular connecting pipe are respectively provided with a clamping groove matched with the limiting mechanism, and when the limiting mechanism is impacted by airflow, the limiting mechanism can enter the clamping grooves.

Preferably, the actuating mechanism comprises a connecting block which is arranged in the hollow working shell and can reciprocate in the horizontal direction, and two sides of the connecting block are respectively and fixedly provided with a rack;

the two valve plates are respectively in transmission connection with a gear, and the gear is meshed with the rack.

Preferably, the actuating mechanism comprises a limiting groove arranged at the bottom of the hollow working shell, an electromagnet is fixedly arranged on the side wall of one side of the limiting groove, a magnet capable of moving back and forth is arranged in the limiting groove, and the magnet is fixedly connected with the connecting block.

Preferably, the two sides of the bottom of the hollow working shell are respectively provided with a matching through hole communicated with the rectangular connecting pipe, a rotating rod is rotatably arranged in the matching through hole, and the rotating rod is fixedly connected with the gear.

Preferably, the valve plate is fixedly arranged on the rotating rod.

Preferably, stop gear is including setting up first recess and the second recess on the valve block side, just first recess with the second recess is located respectively the both sides of rotary rod, be provided with a first briquetting of reciprocating seal removal in the first recess, first briquetting is close to and is fixed on one side of first recess and is provided with first sloping block, be provided with a reciprocating motion's second sloping block on the bottom surface of first recess, and the second sloping block cooperatees with first sloping block, first recess bottom is provided with a logical groove, the fixed L type pole of wearing out logical groove that is provided with on the second sloping block.

Preferably, but be provided with the second briquetting in the second recess reciprocating seal removal, the second briquetting is close to the fixed third sloping block that is provided with in one side of second recess bottom, the bottom of second recess be provided with one reciprocating motion and with third sloping block matched with fourth sloping block, the fixed long slab that runs through the rotary rod and reach first recess that is provided with on the fourth sloping block, and long slab and second sloping block fixed connection, the long slab is located and is fixed being provided with a reset spring between one side of second recess and the second recess lateral wall.

The embodiment of the utility model provides an in one or more technical scheme, following technological effect or advantage have at least: one of them side of valve block receives the pressure of air current too big, and the pressure of the air current that one side received can let limit structure start and draw-in groove cooperate and let the valve block card dead unable upset of letting when too little to can keep all the time completely cut off the discharge of preventing the cigarette with the cigarette, thereby can avoid the air current too big time can be washed away the valve block and lead to the intensity of a fire to spread and cause the loss to the life property, thereby can make the change product use more safe and reliable.

Drawings

Fig. 1 is a perspective view of the present invention (in a valve closed state);

FIG. 2 is a front view of the present invention;

FIG. 3 is a cross-sectional view taken at A-A of FIG. 2;

FIG. 4 is a cross-sectional view taken at B-B of FIG. 2;

fig. 5 is an enlarged view of fig. 4 at C.

The reference numbers are as follows:

rectangular connecting pipe 1, hollow work casing 29, actuating mechanism 2, valve block 3, stop gear 4, draw-in groove 5, spacing groove 201, electro-magnet 202, magnet 203, connecting block 204, rack 205, cooperation through-hole 206, rotary rod 207, gear 208, first recess 401, second recess 402, first briquetting 403, first sloping block 404, second sloping block 405, logical groove 406, L type pole 788, second briquetting 500, third sloping block 501, long board 503, reset spring 506.

Detailed Description

Other objects and advantages of the present invention will become apparent from the following explanation of the preferred embodiments of the present application.

The invention will be further described with reference to the following figures 1-5 and examples:

the utility model provides a fire damper discharges fume, including rectangular connection pipe 1, the fixed temperature sensor that is provided with on the 1 inner wall of rectangular connection pipe, the top of rectangular connection pipe 1 is provided with a cavity work casing 29, be provided with an actuating mechanism 2 in the cavity work casing 29, the side is provided with a valve block 3 that is connected with actuating mechanism 2 respectively about in the rectangular connection pipe 1, be provided with one on every valve block 3 and be used for blocking 3 the valve block and avoid the stop gear 4 that the valve block 3 air current washes away, 1 inner wall both sides of rectangular connection pipe are provided with one respectively and stop gear 4 matched with draw-in groove 5, when the air current strikes stop gear 4, stop gear 4 can get into in the draw-in groove 5, play fixed reinforcing action to valve block 3.

The actuating mechanism 2 comprises a limiting groove 201 arranged at the bottom of the hollow working shell 29, an electromagnet 202 is fixedly arranged on one side wall of the limiting groove 201, a magnet 203 capable of moving back and forth is arranged in the limiting groove 201, a connecting block 204 is fixedly arranged at the top of the magnet 203, a rack 205 is fixedly arranged on each of two sides of the connecting block 204, a matching through hole 206 communicated with the rectangular connecting pipe 1 is respectively arranged on each of two sides of the bottom of the hollow working shell 29, a rotating rod 207 is rotatably arranged in the matching through hole 206, a gear 208 positioned in the hollow working shell 29 is fixedly arranged on the rotating rod 207, and the gear 208 is meshed with the rack 205. When the electromagnet 202 is started, the magnet 203 can be attracted to be close to the electromagnet, the magnet 203 can drive the connecting block 204 and the rack 205 to move together, and the rack 205 can be meshed with the gear 208 to drive the gear 208 to rotate. The valve plate 3 is fixedly arranged on the rotating rod 207.

Limiting mechanism 4 is including setting up first recess 401 and second recess 402 on the valve block 3 side, and first recess 401 and second recess 402 are located the both sides of rotary rod 207 respectively, be provided with a reciprocating seal removal's first briquetting 403 in the first recess 401, first briquetting 403 is close to fixed first sloping block 404 that is provided with on one side of first recess 401, be provided with a reciprocating motion's second sloping block 405 on the bottom surface of first recess 401, and second sloping block 405 cooperatees with first sloping block 404, first recess 401 bottom is provided with a logical groove 406, fixed being provided with one on the second sloping block 405 and wearing out the L type pole 788 in leading to the inslot 406.

The second pressing block 500 is arranged in the second groove 402 in a reciprocating, sealing and moving mode, a third inclined block 501 is fixedly arranged on one side face, close to the bottom of the second groove 402, of the second pressing block 500, a fourth inclined block 502 which can move in a reciprocating mode and is matched with the third inclined block 501 is arranged at the bottom of the second groove 402, a long plate 503 which penetrates through the rotating rod 207 to reach the first groove 401 is fixedly arranged on the fourth inclined block 502, the long plate 503 is fixedly connected with the second inclined block 405, and a reset spring 506 is fixedly arranged between one side face, located on the second groove 402, of the long plate 503 and the side wall of the second groove 402.

Be equipped with temperature sensor in the rectangle connecting pipe 1, temperature sensor and controller electric connection, controller and electro-magnet 202 electric connection, temperature sensor is prior art, so no longer give unnecessary details.

The working principle is as follows: when the temperature sensor senses that the temperature rises to 280 ℃, the electromagnet 202 is started to generate magnetism to attract the magnet 203 to approach, the magnet 203 drives the connecting block 204 and the rack 205 to move together, the rack 205 is meshed with the gear 208 to drive the gear 208 to rotate, the gear 208 drives the valve plate 3 to turn ninety degrees, two valve plates 3 are turned from being parallel to each other to be positioned on the same straight line to enable the valve to be closed and play an isolation role, when the airflow is concentrated on one position of the first pressing block 403 on the valve plate 3, the first pressing block 403 is pushed to move close to the second inclined block 405, the first inclined block 404 pushes the second inclined block 405 to move towards the direction of the clamping groove 5, the second inclined block 405 drives the L-shaped rod 788 to enter the clamping groove 5 to clamp the valve plate 3, when the airflow is concentrated on one position of the second pressing block 500 on the valve plate 3, the second pressing block 500 moves towards the fourth inclined block 502, and the third inclined block 501 pushes the fourth inclined block 502 to move towards the direction of the clamping groove 5, let fourth sloping block 502 take second sloping block 405, L type pole 788 to remove towards the direction of draw-in groove 5, let L type pole 788 get into in the draw-in groove 5 to can concentrate on which side of valve block can't push valve block 3 and overturn no matter the air current, can let this product use more safe and reliable.

The apparatus of the present application has been described in detail with reference to the preferred embodiments thereof, however, it should be noted that those skilled in the art can make modifications, alterations and adaptations based on the above disclosure without departing from the spirit of the present application. The present application includes the specific embodiments described above and any equivalents thereof.

Claims

1. The utility model provides a fire damper discharges fume, includes rectangle connecting pipe (1), its characterized in that: a hollow working shell (29) is arranged at the top of the rectangular connecting pipe (1), and an actuating mechanism (2) is arranged in the hollow working shell (29);

the left side and the right side in the rectangular connecting pipe (1) are respectively provided with a valve plate (3) connected with the actuating mechanism (2), and each valve plate (3) is provided with a limiting mechanism (4) used for clamping the valve plate (3) to prevent the valve plate (3) from being flushed away by airflow;

the two sides of the inner wall of the rectangular connecting pipe (1) are respectively provided with a clamping groove (5) matched with the limiting mechanism (4), and when the limiting mechanism (4) is impacted by air flow, the limiting mechanism (4) can enter the clamping groove (5).

2. A smoke evacuation fire damper as claimed in claim 1 wherein: the actuating mechanism comprises a connecting block (204) which is arranged in the hollow working shell (29) and can reciprocate in the horizontal direction, and two sides of the connecting block (204) are respectively and fixedly provided with a rack (205);

the two valve plates (3) are respectively in transmission connection with a gear (208), and the gear (208) is meshed with the rack (205).

3. A smoke evacuation fire damper as claimed in claim 2 wherein: the actuating mechanism (2) comprises a limiting groove (201) arranged at the bottom of the hollow working shell (29), an electromagnet (202) is fixedly arranged on the side wall of one side of the limiting groove (201), a magnet (203) capable of moving to and fro is arranged in the limiting groove (201), and the magnet (203) is fixedly connected with the connecting block (204).

4. A smoke evacuation fire damper as claimed in claim 3 wherein: the bottom both sides of cavity work casing (29) are provided with one respectively and are linked together cooperation through-hole (206) with rectangle connecting pipe (1), rotatable rotary rod (207) that is provided with in cooperation through-hole (206), rotary rod (207) with gear (208) fixed connection.

5. A smoke evacuation fire damper as claimed in claim 4 wherein: the valve plate (3) is fixedly arranged on the rotating rod (207).

6. A smoke evacuation fire damper as claimed in claim 5 wherein: stop gear (4) are including setting up first recess (401) and second recess (402) on valve block (3) side, just first recess (401) with second recess (402) are located respectively the both sides of rotary rod (207), be provided with a first briquetting (403) that can reciprocating seal and move in first recess (401), first briquetting (403) are close to fixed being provided with first sloping block (404) on one side of first recess (401), be provided with a reciprocating motion's second sloping block (405) on the bottom surface of first recess (401), and second sloping block (405) and first sloping block (404) cooperate, first recess (401) bottom is provided with a logical groove (406), fixed being provided with an L type pole (788) of wearing out logical groove (406) on second sloping block (405).

7. A smoke evacuation fire damper as claimed in claim 6 wherein: but be provided with second briquetting (500) in the second recess (402) to reciprocating seal removal, second briquetting (500) are close to one side fixed third sloping block (501) that is provided with of second recess (402) bottom, the bottom of second recess (402) is provided with one reciprocating motion and with third sloping block (501) matched with fourth sloping block (502), fixed being provided with one on fourth sloping block (502) and running through rotary rod (207) and reach long board (503) of first recess (401), and long board (503) and second sloping block (405) fixed connection, fixed being provided with a reset spring (506) between one side that long board (503) are located second recess (402) and second recess (402) lateral wall.