CN218992491U - Draw-out fire control fire prevention valve - Google Patents

Abstract

The utility model discloses a draw-out fire-fighting fire-proof valve, which relates to the technical field of fire-proof valves and comprises an air box, wherein one side of the air box is communicated with an accommodating box, the end part of the accommodating box is fixedly connected with a transmission box, a rotating shaft is rotationally embedded between the inner walls of two sides of the accommodating box, the outer side of the rotating shaft is fixedly connected with a fire-proof rolling curtain, one side of the transmission box is rotationally embedded with a handle, a reset component is in transmission connection between the handle and the rotating shaft, and the reset component is connected with an electromagnetic valve, so that the electromagnetic valve can control the locking state of the reset component.

Description

Draw-out fire control fire prevention valve

Technical Field

The utility model relates to the technical field of fire valves, in particular to a pull-out fire valve.

Background

The fire-proof valve is a normally closed valve, which is opened or manually opened by a control center through 24V direct current, and is automatically closed at 280 ℃, and the reset is needed to be manually operated, and the fire-proof valve has the functions that: when the temperature of the smoke reaches 280 ℃, people are basically evacuated, smoke is exhausted without practical significance, the smoke is exhausted, a fire is carried in the smoke at the moment, a valve is automatically closed to avoid the spread of fire, a smoke exhaust port of the system can also use a normally closed type fireproof smoke exhaust port, a smoke exhaust fireproof valve on a branch pipe is canceled, when in fire, the port is opened or manually opened by a control center through 24V direct current, when the temperature of the smoke reaches 280 ℃, the smoke is automatically closed, the reset is also required to be manual, and a smoke exhaust fireproof valve is also arranged at an inlet of a smoke exhaust fan room to spread to a layer where the fan room is located in a fireproof mode;

chinese patent publication No. 202020782178.7 discloses a high leakproofness high temperature fire damper, including the fire damper housing, the left side front and back symmetry of fire damper housing inner wall is equipped with first slide rail, the right side of fire damper housing inner wall just corresponds the position fixedly connected with second slide rail of first slide rail, the inboard fixedly connected with gag lever post of fire damper housing inner wall bottom just corresponding second slide rail, the top and the fire damper housing inner wall top fixedly connected with of gag lever post, the surface sliding connection of gag lever post has first sliding sleeve, the left side at fire damper housing top is through four vaulting pole fixedly connected with fixed plates, the fixed plate top just corresponds the position fixed mounting of the first slide rail of front side has driving motor. The high-temperature fireproof valve with high tightness has reasonable structural design and convenient use, adopts a two-layer airtight opening and closing structure, greatly improves the tightness of the fireproof valve in use, reduces the labor by adopting an electric driving mode, and brings great convenience to users;

however, utilize the driving motor of sustainable output as opening and close the subassembly, when the conflagration takes place, the high temperature environment arouses circuit breaking very easily, the condition of outage, and the application security is low, and on the other hand, traditional board-turning fire control fire damper, the valve plate can occupy the wind channel space, influences the output effect in wind channel, and the high pressure effect appears in the condition that the valve plate activity direction led to the valve plate to overturn easily, and sealed security is low, and this the utility model provides a pull-out fire control fire damper is used for solving above-mentioned problem.

Disclosure of Invention

The utility model provides a draw-out fire-fighting fire-proof valve, which solves the technical problems that when a driving motor with continuous output is used as an opening and closing component, particularly when a fire disaster occurs, the high-temperature environment is very easy to cause the conditions of circuit breaking and power failure, the application safety is low, on the other hand, the traditional flap-type fire-fighting fire-proof valve occupies the space of an air duct to influence the output effect of the air duct, and the high pressure acts on the movable direction of the valve plate, so that the condition of overturning the valve plate is easy to occur, and the sealing safety is low.

In order to solve the technical problems, the extraction type fire-fighting fire-proof valve comprises an air box, one side of the air box is communicated with an accommodating box, the end part of the accommodating box is fixedly connected with a transmission box, a rotating shaft is rotationally embedded between the inner walls of two sides of the accommodating box, a fire-proof rolling curtain is fixedly connected to the outer side of the rotating shaft, a handle is rotationally embedded on one side of the transmission box, a reset component is in transmission connection between the handle and the rotating shaft, and the reset component is connected with an electromagnetic valve, so that the electromagnetic valve can control the locking state of the reset component.

Preferably, the reset assembly comprises a first circular shaft and a second circular shaft which are rotationally embedded between the inner walls of the two sides of the transmission case, wherein one end of the first circular shaft is fixedly connected with the handle, one end of the second circular shaft is fixedly connected with the rotating shaft, a locking ring is fixedly sleeved on the outer side of the first circular shaft, and a lock hole is formed in the outer wall of the locking ring.

Preferably, the outside of first round axle and second round axle is fixedly connected with gear wheel and pinion respectively, gear wheel and pinion meshing are connected, gear wheel keeps away from pinion one side meshing and is connected with the rack, the slip inlays in the rack and is equipped with the slide bar, slide bar fixed connection is between the inner wall of transmission case both sides, the slide bar outside just is located the cover between rack and the transmission case inner wall and is equipped with big spring.

Preferably, the electromagnetic valve is fixedly connected to the inner wall of the transmission case, a magnetic iron core is embedded in the electromagnetic valve in a sliding manner, a lock rod is fixedly connected to one side of the magnetic iron core, the lock rod penetrates out of the electromagnetic valve and then is arranged corresponding to the lock hole, and a plurality of small springs are fixedly connected between one side of the magnetic iron core and the inner wall of the electromagnetic valve.

Preferably, an electromagnet is fixedly connected to the inner wall of one side of the electromagnetic valve, the same plane of the electromagnet and the magnet core are opposite to each other, and a closed loop is formed between the electromagnet and a fuse wire arranged in the inner wall of the bellows.

Preferably, flange plates are fixedly connected to the outer sides of two ends of the bellows, sliding rails are fixedly connected to the inner walls of two sides of the bellows, and fireproof rolling curtains are embedded between the sliding rails in a sliding mode.

Compared with the related art, the utility model provides a pull-out fire-fighting fire-proof valve which has the following structure

The beneficial effects are that:

according to the extraction type fire protection valve, due to the arrangement of the fire protection rolling curtain and the sliding rail, the airflow direction in the bellows is perpendicular to the extending direction of the fire protection rolling curtain, so that the sealing effect of the fire protection rolling curtain can be guaranteed, the fire protection rolling curtain is prevented from spreading, and in a normally open state of the fire protection valve, the fire protection rolling curtain is contained in the containing box, so that the air duct space is not occupied, the air exhaust is smoother, and the space utilization rate of the fire protection valve is improved;

according to the extraction fire-fighting fire-proof valve, through the arrangement of the reset component, the transmission case and the electromagnetic valve, if the fuse wire is fused, the electromagnet connected with the fuse wire in series can be powered off, the magnetic field disappears, the magnet core is reset under the action of the elasticity of the small spring, the lock rod can be pulled out from the lock hole, under the action of the elasticity of the large spring, the rack is meshed with the transmission large gear, the large gear is meshed with the transmission small gear to rotate for a plurality of weeks, the small gear drives the rotating shaft to rotate, the rotating shaft is used for unreeling the fire-proof rolling curtain, the fire-proof rolling curtain can slide along the sliding rail until the end part of the fire-proof rolling curtain is attached to the inner wall of the bellows, and the structure does not need to use an electric control component with continuous output, so that the operation is safer, and the reaction is quicker in an emergency state.

Drawings

FIG. 1 is an external view of a pull-out fire valve according to the present utility model;

FIG. 2 is a front cross-sectional view of a pull-out fire valve according to the present utility model;

FIG. 3 is an enlarged view of the structure A of the drawing-out fire valve of FIG. 2 according to the present utility model;

fig. 4 is a partial top cross-sectional view of a pull-out fire damper according to the present utility model.

Reference numerals in the drawings: 1. a wind box; 11. a housing case; 12. a transmission case; 13. a flange plate; 14. a slide rail; 2. a rotating shaft; 3. fireproof roller shutter; 4. a handle; 5. a reset assembly; 51. a first circular shaft; 52. a second circular shaft; 53. a locking ring; 54. a lock hole; 55. a large gear; 56. a pinion gear; 57. a rack; 58. a slide bar; 59. a large spring; 6. an electromagnetic valve; 61. a magnetic core; 62. a lock lever; 63. a small spring; 64. an electromagnet.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model; all other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Examples: the utility model provides a drawing-out fire-fighting fire-proof valve, which comprises a bellows 1, wherein one side of the bellows 1 is communicated with an accommodating box 11, the end part of the accommodating box 11 is fixedly connected with a transmission box 12, the outer sides of the two ends of the bellows 1 are fixedly connected with flange plates 13, the inner walls of the two sides of the bellows 1 are fixedly connected with slide rails 14, a fire-proof rolling curtain 3 is slidably embedded between the two slide rails 14, the slide rails 14 are used for guiding the fire-proof rolling curtain 3, the section of the slide rails 14 is of a concave structure, so that a tortuous contact surface is formed between the fire-proof rolling curtain 3 and the slide rails 14, and the sealing effect is improved.

Further, the rotating shaft 2 is rotationally embedded between the inner walls of the two sides of the accommodating box 11, the fireproof roller shutter 3 is fixedly connected to the outer side of the rotating shaft 2, the handle 4 is rotationally embedded on one side of the transmission case 12, the reset component 5 is in transmission connection with the rotating shaft 2, the reset component 5 comprises a first round shaft 51 and a second round shaft 52 which are rotationally embedded between the inner walls of the two sides of the transmission case 12, one end of the first round shaft 51 is fixedly connected with the handle 4, one end of the second round shaft 52 is fixedly connected with the rotating shaft 2, a locking ring 53 is fixedly sleeved on the outer side of the first round shaft 51, a lock hole 54 is formed in the outer wall of the locking ring 53, and the lock rod 62 is correspondingly inserted into the lock hole 54 only when the fireproof roller shutter 3 is in a completely rolled state.

Further, the outside of the first circular shaft 51 and the second circular shaft 52 are fixedly connected with a large gear 55 and a small gear 56 respectively, the large gear 55 and the small gear 56 are in meshed connection, one side, far away from the small gear 56, of the large gear 55 is in meshed connection with a rack 57, a sliding rod 58 is in sliding embedding connection with the rack 57, the sliding rod 58 is fixedly connected between the inner walls of the two sides of the transmission case 12, a large spring 59 is sleeved outside the sliding rod 58 and between the rack 57 and the inner wall of the transmission case 12, under the elastic force of the large spring 59, the rack 57 is meshed with the large gear 55, the large gear 55 is meshed with the small gear 56 to rotate for a plurality of weeks, the small gear 56 drives the rotating shaft 2 to rotate, and the rotating shaft 2 unreels the fireproof roller blind 3, so that automatic closing can be realized without an additional power element.

Further, the reset component 5 is connected with the electromagnetic valve 6, so that the electromagnetic valve 6 can control the locking state of the reset component 5, the electromagnetic valve 6 is fixedly connected to the inner wall of the transmission case 12, the magnetic iron core 61 is embedded in the electromagnetic valve 6 in a sliding manner, one side of the magnetic iron core 61 is fixedly connected with the lock rod 62, the lock rod 62 penetrates out of the electromagnetic valve 6 and then is arranged corresponding to the lock hole 54, a plurality of small springs 63 are fixedly connected between one side of the magnetic iron core 61 and the inner wall of the electromagnetic valve 6, after fuse wire is melted, the electromagnet 64 is powered off, a magnetic field disappears, the magnetic iron core 61 is reset under the elastic force of the small springs 63, and the lock rod 62 is pulled out from the lock hole 54, so that the locking state of the fire valve can be relieved.

Further, an electromagnet 64 is fixedly connected to the inner wall of one side of the electromagnetic valve 6, the same plane of the electromagnet 64 and the same plane of the magnet core 61 are opposite to each other, a closed loop is formed between the electromagnet 64 and a fuse wire arranged in the inner wall of the bellows 1, a closed loop is formed between the electromagnet 64 and the fuse wire, the electromagnet 64 is electrified to generate a magnetic field, the magnet core 61 is far away from the electromagnet 64 under the action of repulsive force of the same magnetic field, the lock rod 62 is inserted into the lock hole 54, and the fire protection valve can be kept in a normally open state.

Working principle: when the device is used, a closed loop is formed between the electromagnet 64 and the fuse, the electromagnet 64 is electrified to generate a magnetic field, under the action of repulsive force of the like magnetic fields, the magnet core 61 is far away from the electromagnet 64, the lock rod 62 can be inserted into the lock hole 54, the fire-fighting fire-proof valve can be kept in a normally open state, if high-temperature gas flows in the bellows 1, the fuse can be quickly fused, after the fuse is fused, the electromagnet 64 is powered off, the magnetic field disappears, under the action of the elasticity of the small spring 63, the magnet core 61 is reset, the lock rod 62 can be pulled out from the lock hole 54, under the action of the elasticity of the large spring 59, the rack 57 is meshed with the transmission large gear 55, the large gear 55 is meshed with the transmission small gear 56 to rotate for a plurality of weeks, the small gear 56 drives the rotating shaft 2 to rotate, the rotating shaft 2 unreels the fire-proof rolling curtain 3, the fire-proof rolling curtain 3 can slide along the slide rail 14 until the end part of the fire-proof rolling curtain is attached to the inner wall of the bellows 1, and the sealing effect of the fire-proof rolling curtain 3 can be guaranteed due to the fact that the airflow direction in the bellows 1 is mutually perpendicular to the extending direction of the fire-proof rolling curtain 3.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The utility model provides a pull-out fire control fire prevention valve, includes bellows (1), its characterized in that, one side intercommunication of bellows (1) is provided with holds box (11), the tip fixedly connected with transmission case (12) that holds box (11), it inlays to rotate between the both sides inner wall that holds box (11) is equipped with pivot (2), the outside fixedly connected with fire prevention rolling screen (3) of pivot (2), one side rotation of transmission case (12) is inlayed and is equipped with handle (4), the transmission is connected with reset subassembly (5) between handle (4) and pivot (2), reset subassembly (5) are connected with solenoid valve (6), make solenoid valve (6) steerable reset subassembly (5) locking state.

2. The extraction fire protection valve according to claim 1, wherein the reset assembly (5) comprises a first circular shaft (51) and a second circular shaft (52) which are rotationally embedded between two side inner walls of the transmission case (12), one end of the first circular shaft (51) is fixedly connected with the handle (4), one end of the second circular shaft (52) is fixedly connected with the rotating shaft (2), a locking ring (53) is fixedly sleeved on the outer side of the first circular shaft (51), and a lock hole (54) is formed in the outer wall of the locking ring (53).

3. The extraction fire protection valve according to claim 2, wherein the outer sides of the first circular shaft (51) and the second circular shaft (52) are respectively fixedly connected with a large gear (55) and a small gear (56), the large gear (55) and the small gear (56) are in meshed connection, one side, away from the small gear (56), of the large gear (55) is in meshed connection with a rack (57), a sliding rod (58) is embedded in the rack (57), the sliding rod (58) is fixedly connected between inner walls on two sides of the transmission case (12), and a large spring (59) is sleeved outside the sliding rod (58) and between the rack (57) and the inner walls of the transmission case (12).

4. A draw-out fire protection valve according to claim 3, wherein the electromagnetic valve (6) is fixedly connected to the inner wall of the transmission case (12), a magnetic iron core (61) is embedded in the electromagnetic valve (6) in a sliding manner, a lock rod (62) is fixedly connected to one side of the magnetic iron core (61), the lock rod (62) is arranged corresponding to the lock hole (54) after penetrating out of the electromagnetic valve (6), and a plurality of small springs (63) are fixedly connected between one side of the magnetic iron core (61) and the inner wall of the electromagnetic valve (6).

5. The extraction fire protection valve according to claim 1, wherein an electromagnet (64) is fixedly connected to the inner wall of one side of the electromagnetic valve (6), the same plane of the electromagnet (64) and the same plane of the magnet core (61) are opposite, and a closed loop is formed between the electromagnet (64) and a fuse wire arranged in the inner wall of the bellows (1).

6. The extraction fire protection and fire prevention valve according to claim 1, wherein flange plates (13) are fixedly connected to the outer sides of two ends of the air box (1), sliding rails (14) are fixedly connected to the inner walls of two sides of the air box (1), and a fire protection rolling curtain (3) is embedded between the two sliding rails (14) in a sliding mode.

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