CN216643101U

CN216643101U - A fire prevention valve for fire control system of discharging fume

Info

Publication number: CN216643101U
Application number: CN202123073393.3U
Authority: CN
Inventors: 林伟聪; 林新明; 邱新平
Original assignee: Hubei Xinlinfeng Sanli Fire Fighting Equipment Manufacturing Co ltd
Current assignee: Hubei Xinlinfeng Sanli Fire Fighting Equipment Manufacturing Co ltd
Priority date: 2021-12-08
Filing date: 2021-12-08
Publication date: 2022-05-31
Anticipated expiration: 2031-12-08

Abstract

The utility model discloses a fire-proof valve for a fire-fighting smoke discharging system, which belongs to the technical field of fire-fighting equipment and comprises a box body and a temperature sensor, wherein one side of the box body is in bolted connection with a fixed box, an inner cavity of the fixed box is provided with a blocking mechanism, the front side of the fixed box is in bolted connection with a sealing box, the inner cavity of the sealing box is provided with a sealing mechanism, the back side of the fixed box is provided with a first ventilation opening, the top and the bottom of the front side of the fixed box are both provided with second ventilation openings, the back side of the sealing box is provided with a third ventilation opening matched with the second ventilation openings for use, the top and the bottom of the front side of the sealing box are both provided with fourth ventilation openings, and the front side of the box body is hinged with a box door through a hinge. Through blocking the mechanism when the conflagration breaing out, automatically close the valve plate, prevent that the conflagration from stretching, it is strong to improve the leakproofness through sealing mechanism to improve the practicality of device.

Description

A fire prevention valve for fire control system of discharging fume

Technical Field

The utility model relates to the technical field of fire-fighting equipment, in particular to a fire-fighting valve for a fire-fighting smoke exhaust system.

Background

The larger and more complex the building, the more important it is to ventilate and prevent fires. Along with the continuous expansion of cities, tall and big buildings are more and more, the life and death of people are determined in many times of ventilation and fire prevention of the buildings, and the ventilation is generally completed through a pipeline, so that a fire prevention valve is very necessary to be additionally arranged on a fire-fighting smoke exhaust pipe.

Common fire prevention valve on the market intensity is lower, and the air leakage is great, has certain potential safety hazard, and the inside sealing washer of valve plate has certain potential safety hazard owing to receive roasting of firework for a long time, the condition that the sealing washer drops very easily appears simultaneously.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a fire-proof valve for a fire-fighting smoke exhaust system, which can automatically close a valve plate to prevent the fire from spreading when a blocking mechanism is in fire, improve the sealing degree through a sealing mechanism, and improve the practicability of the device so as to solve the problems in the background art.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a fire prevention valve for fire control system of discharging fume, includes box and temperature-sensing ware, one side bolt joint of box has the fixed case, the inner chamber of fixed case is provided with blocks the mechanism, the front bolt joint of fixed case has the seal box, the inner chamber of seal box is provided with sealing mechanism, first vent has been seted up at the back of fixed case, the second vent has all been seted up to the positive top of fixed case and bottom, the third vent that uses with the cooperation of second vent is seted up at the back of seal box, fourth vent has all been seted up to the positive top of seal box and bottom, the front of box articulates through the hinge has the chamber door.

Preferably, block the mechanism and include motor, lead screw, thread bush, slider, spout, rack plate, rotary gear, rotation axis and valve plate, the inner chamber upper wall of box is furnished with the motor, motor and temperature-sensing ware electric connection.

Preferably, the output shaft of the motor is bolted with a screw rod, and the bottom of the screw rod is rotatably connected to the lower wall of the inner cavity of the box body through a bearing.

Preferably, the top and the bottom of the surface of the screw rod are both in threaded connection with threaded sleeves, the back of each threaded sleeve is bolted with a sliding block, and the back of the inner cavity of the box body is provided with a sliding groove matched with the sliding block for use.

Preferably, the front faces of the thread sleeves are bolted with rack plates, and the front faces of the rack plates are meshed with rotating gears.

Preferably, the inner cavity leveling key of the rotary gear is connected with a rotary shaft, one side of the rotary shaft is rotatably connected to one side of the inner cavity of the box body through a bearing, and the other side of the rotary shaft sequentially penetrates through the box body and the fixed box and is rotatably connected to one side of the inner cavity of the fixed box through the bearing.

Preferably, the surface of the rotating shaft is bolted with a valve plate, and the size of the valve plate is the same as that of the second ventilation opening.

Preferably, the sealing mechanism comprises an air cylinder, a sealing plate, a sealing ring, a limiting block and a limiting groove, the air cylinder is assembled on the front side of the inner cavity of the sealing box, the sealing plate is bolted to a piston rod of the air cylinder, the sealing ring is assembled on the back side of the sealing plate, and the sealing plate and the sealing ring are the same in size as the third ventilation opening.

Preferably, both sides of the sealing plate are bolted with limiting blocks, and both sides of the inner cavity of the sealing box are provided with limiting grooves matched with the limiting blocks for use.

Preferably, a temperature sensor is mounted on the upper wall of the inner cavity of the fixing box, and the air cylinder is electrically connected with the temperature sensor.

Compared with the prior art, the utility model has the beneficial effects that:

1. the utility model provides a fire-proof valve for a fire-fighting smoke exhaust system, which is convenient for adjusting the opening and closing angle of a valve plate through the matching of a motor, a screw rod, a threaded sleeve, a sliding block, a sliding chute, a rack plate, a rotating gear, a rotating shaft and the valve plate, thereby controlling the opening area of a second ventilation opening; through the cooperation of temperature-sensing ware and motor, when the conflagration breaing out when the temperature reaches the upper limit that sets up, send a signal to the motor through the temperature-sensing ware to close the valve plate, prevent that the conflagration from stretching, play the effect of blocking, overall structure is simple, and the practicality is stronger.

2. The utility model provides a fire-proof valve for a fire-fighting smoke exhaust system, which is convenient for sealing a third vent hole by matching an air cylinder, a sealing plate, a sealing ring, a limiting block and a limiting groove, thereby plugging the second vent hole, effectively preventing air leakage and smoke, and preventing the sealing ring from being directly roasted by smoke and fire due to the blockage of a valve plate, thereby prolonging the service life of the sealing ring, improving the safety of the device and eliminating the potential safety hazard when a fire disaster occurs.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a perspective view of the case and retaining case structure of the present invention;

FIG. 3 is a sectional view of the structure of the case and the fixing case of the present invention;

FIG. 4 is a sectional view of the side view of the case of the present invention;

fig. 5 is a sectional view of the seal box of the present invention.

Reference numbers in the figures: 1. a box body; 2. a temperature sensor; 3. a fixed box; 4. a blocking mechanism; 41. a motor; 42. a screw rod; 43. a threaded sleeve; 44. a slider; 45. a chute; 46. a rack plate; 47. a rotating gear; 48. a rotating shaft; 49. a valve plate; 5. a sealing box; 6. a sealing mechanism; 61. a cylinder; 62. a sealing plate; 63. a seal ring; 64. a limiting block; 65. a limiting groove; 7. a second vent; 8. a fourth vent; 9. and (4) a box door.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The utility model provides a fire-proof valve for a fire-fighting smoke discharging system as shown in figures 1-5, which comprises a box body 1 and a temperature sensor 2, wherein one side of the box body 1 is bolted with a fixed box 3, the inner cavity of the fixed box 3 is provided with a blocking mechanism 4, the front surface of the fixed box 3 is bolted with a sealing box 5, the inner cavity of the sealing box 5 is provided with a sealing mechanism 6, the back surface of the fixed box 3 is provided with a first ventilation opening, the top and the bottom of the front surface of the fixed box 3 are both provided with a second ventilation opening 7, the back surface of the sealing box 5 is provided with a third ventilation opening matched with the second ventilation opening 7 for use, the top and the bottom of the front surface of the sealing box 5 are both provided with a fourth ventilation opening 8, smoke enters from the first ventilation opening, and the air is discharged outwards through a second vent 7, a third vent and a fourth vent 8 in sequence, the front surface of the box body 1 is hinged with a box door 9 through a hinge, and the daily maintenance is facilitated through the box door 9.

The blocking mechanism 4 comprises a motor 41, a screw rod 42, a threaded sleeve 43, a slide block 44, a sliding chute 45, a rack plate 46, a rotating gear 47, a rotating shaft 48 and a valve plate 49, the motor 41 is arranged on the upper wall of the inner cavity of the box body 1, the motor 41 is electrically connected with the temperature sensor 2, and when the temperature reaches a set value, the temperature sensor 2 transmits a signal to the motor 41 so as to close the valve plate 49.

The output shaft of the motor 41 is bolted with a screw rod 42, the motor 41 drives the screw rod 42 to rotate, and the bottom of the screw rod 42 is rotatably connected to the lower wall of the inner cavity of the box body 1 through a bearing.

Thereby the equal threaded connection in top and bottom on lead screw 42 surface has thread bush 43, and the rotation through lead screw 42 drives thread bush 43 and removes, and the back of thread bush 43 all is bolted to have slider 44, and the spout 45 that uses with slider 44 cooperation is seted up at the back of 1 inner chamber of box, and slider 44 and spout 45 play spacing and the effect that supports thread bush 43.

The front surfaces of the threaded sleeves 43 are bolted with rack plates 46, the front surfaces of the rack plates 46 are meshed with rotating gears 47, and the rack plates 46 drive the rotating gears 47 to rotate.

The rotation axis 48 is connected to the even key in inner chamber of rotary gear 47, drives rotation axis 48 through rotary gear 47 and rotates, and one side of rotation axis 48 rotates through the bearing and connects in inner chamber one side of box 1, and the opposite side of rotation axis 48 runs through box 1 and fixed case 3 in proper order and rotates through the bearing and connect in fixed case 3's inner chamber one side.

The valve plate 49 is bolted to the surface of the rotating shaft 48, the valve plate 49 is driven to rotate through the rotating shaft 48, and the size of the valve plate 49 is the same as that of the second ventilation opening 7, so that the second ventilation opening 7 is opened and closed.

Sealing mechanism 6 includes cylinder 61, closing plate 62, sealing washer 63, stopper 64 and spacing groove 65, and the front of 5 inner chambers of seal box is equipped with cylinder 61, and the piston rod bolt of cylinder 61 has connect closing plate 62, and the back of closing plate 62 is equipped with sealing washer 63, and the size of closing plate 62 and sealing washer 63 is the same with the size of third ventilation opening, seals the third ventilation opening through sealing washer 63, avoids the flue gas to get into.

Both sides of the sealing plate 62 are bolted with limiting blocks 64, limiting grooves 65 matched with the limiting blocks 64 for use are formed in both sides of the inner cavity of the sealing box 5, and the limiting blocks 64 and the limiting grooves 65 play a limiting and supporting role on the sealing plate 62.

The wall is furnished with temperature-sensing ware 2 on the inner chamber of fixed box 3, monitors the temperature through temperature-sensing ware 2, and

cylinder

61 and 2 electric connection of temperature-sensing ware when the temperature reaches the setting value, send signal to cylinder 61 through temperature-sensing ware 2 to seal third ventilation opening.

During the specific use, when the temperature reaches the setting value, temperature-sensing ware 2 gives motor 41 signals, make motor 41 drive lead screw 42 and rotate, thereby drive thread bush 43 and rack plate 46 and remove, and drive rotary gear 47, rotation axis 48 and valve plate 49 rotate, and then make second ventilation opening 7 seal, play the effect of blocking, temperature-sensing ware 2 signals for cylinder 61 simultaneously, make closing plate 62 and sealing washer 63 remove and seal up the third ventilation opening, thereby prevent that the conflagration from spreading.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments 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

1. The utility model provides a fire prevention valve for fire control smoke exhaust system, includes box (1) and temperature-sensing ware (2), its characterized in that: one side bolt of box (1) has connect fixed case (3), the inner chamber of fixed case (3) is provided with blocks mechanism (4), the front bolt of fixed case (3) has connect seal box (5), the inner chamber of seal box (5) is provided with sealing mechanism (6), first vent has been seted up at the back of fixed case (3), second vent (7) have all been seted up at the positive top of fixed case (3) and bottom, the third vent that uses with second vent (7) cooperation is seted up at the back of seal box (5), fourth vent (8) have all been seted up at the positive top of seal box (5) and bottom, the front of box (1) articulates through the hinge has chamber door (9).

2. A fire damper for a fire protection and smoke evacuation system as claimed in claim 1, wherein: block mechanism (4) and include motor (41), lead screw (42), thread bush (43), slider (44), spout (45), rack plate (46), rotating gear (47), rotation axis (48) and valve plate (49), the inner chamber upper wall of box (1) is equipped with motor (41), motor (41) and temperature-sensing ware (2) electric connection.

3. A fire damper for a fire protection and smoke evacuation system as claimed in claim 2, wherein: the output shaft of the motor (41) is in bolted connection with a screw rod (42), and the bottom of the screw rod (42) is rotatably connected to the lower wall of the inner cavity of the box body (1) through a bearing.

4. A fire damper for a fire protection and smoke evacuation system as claimed in claim 3, wherein: the top and the bottom of the surface of the screw rod (42) are both in threaded connection with a threaded sleeve (43), the back of the threaded sleeve (43) is both in bolted connection with a sliding block (44), and the back of the inner cavity of the box body (1) is provided with a sliding groove (45) matched with the sliding block (44) for use.

5. A fire damper for a fire protection and smoke evacuation system as claimed in claim 4, wherein: the front surfaces of the thread sleeves (43) are bolted with rack plates (46), and the front surfaces of the rack plates (46) are meshed with rotating gears (47).

6. A fire damper for a fire protection and smoke evacuation system as claimed in claim 5, wherein: the inner chamber average key of rotary gear (47) is connected with rotation axis (48), one side of rotation axis (48) is passed through the bearing and is rotated and connect in inner chamber one side of box (1), the opposite side of rotation axis (48) runs through box (1) and fixed case (3) in proper order and rotates through the bearing and connect in inner chamber one side of fixed case (3).

7. A fire damper for a fire protection and smoke evacuation system as claimed in claim 6, wherein: the valve plates (49) are bolted to the surfaces of the rotating shafts (48), and the sizes of the valve plates (49) are the same as those of the second ventilation openings (7).

8. A fire damper for a fire protection and smoke evacuation system as claimed in claim 1, wherein: sealing mechanism (6) include cylinder (61), sealing plate (62), sealing washer (63), stopper (64) and spacing groove (65), the front of seal box (5) inner chamber is equipped with cylinder (61), the piston rod bolt of cylinder (61) has connect sealing plate (62), the back of sealing plate (62) is equipped with sealing washer (63), the size of sealing plate (62) and sealing washer (63) is the same with the size of third ventilation opening.

9. A fire damper for a fire protection and smoke evacuation system as claimed in claim 8, wherein: both sides of the sealing plate (62) are bolted with limiting blocks (64), and both sides of the inner cavity of the sealing box (5) are provided with limiting grooves (65) matched with the limiting blocks (64).

10. A fire damper for a fire protection and smoke evacuation system as claimed in claim 9, wherein: the inner cavity upper wall of the fixed box (3) is provided with a temperature sensor (2), and the air cylinder (61) is electrically connected with the temperature sensor (2).