CN216519640U - Fire prevention valve with explosion-proof function - Google Patents

Abstract

The utility model discloses a fire valve with an explosion-proof function, which comprises a valve body, wherein a ventilation chamber is arranged at the bottom end inside the valve body, a power cavity is arranged inside the valve body above the ventilation chamber, equidistant placing grooves are formed in the inner wall of one side of the ventilation chamber, a transmission body is arranged on the outer wall of one side of the valve body, equidistant movable shafts are arranged inside the ventilation chamber, one end of each movable shaft is rotatably connected with the inner wall of the placing groove, the other end of each movable shaft extends into the transmission body and is provided with a first driven conical tooth, blades are sleeved on the outer wall of each movable shaft, a rotary driving part is arranged on one side of the bottom of the power cavity through a support, a rotating shaft is arranged at one end of the rotary driving part, and a lubricating structure is arranged at the top of the power cavity above the rotating shaft. The utility model not only ensures the fireproof effect of the fireproof valve when in use, improves the safety of the fireproof valve when in use, but also ensures the transmission efficiency of the rotating shaft when the fireproof valve is in use.

Description

Fire prevention valve with explosion-proof function

Technical Field

The utility model relates to the technical field of fire valves, in particular to a fire valve with an explosion-proof function.

Background

The fire damper is generally installed on the pipeline of the air supply, return air or mechanical smoke exhaust system of a ventilation and air conditioning system, is opened at ordinary times, is closed when the temperature of gas in a pipeline reaches a certain temperature during a fire disaster, can meet the requirements of smoke leakage amount and fire resistance integrity within a certain time, and can play a role in separating smoke and fire resistance.

This type of fire prevention valve in the market today is not convenient for carry out synchronous rotation to the blade and handles, leads to the blade to be difficult to fully to the ventilation chamber closed and handle, and then influences its fire prevention effect, puzzles people often.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a fire damper with an explosion-proof function, so as to solve the problem that the fire damper in the background art is inconvenient to synchronously rotate blades.

In order to achieve the purpose, the utility model provides the following technical scheme: a fire-proof valve with an explosion-proof function comprises a valve body, wherein a ventilation chamber is arranged at the bottom end inside the valve body, a power cavity is arranged inside the valve body above the ventilation chamber, equidistant placement grooves are formed in the inner wall of one side of the ventilation chamber, a transmission machine body is arranged on the outer wall of one side of the valve body, equidistant movable shafts are arranged inside the ventilation chamber, one ends of the movable shafts are rotatably connected with the inner wall of the placement grooves, the other ends of the movable shafts extend into the transmission machine body and are provided with first driven conical teeth, blades are sleeved on the outer walls of the movable shafts, a rotary driving piece is mounted on one side of the bottom of the power cavity through a support, a rotating shaft is arranged at one end of the rotary driving piece, a lubricating structure is arranged at the top of the power cavity above the rotating shaft, a guide shaft is arranged at one end of the rotating shaft, which is far away from the rotating shaft, extends into the transmission machine body and is provided with second driving conical teeth, the inside central point of transmission organism puts the department and is equipped with the transmission shaft, the both ends of transmission shaft all rotate with the inner wall at transmission organism both ends and be connected, be fixed with the driven toper tooth of second on the outer wall of transmission shaft one end, the driven toper tooth of second and second initiative toper tooth intermeshing, be fixed with equidistant first initiative toper tooth on the transmission shaft outer wall of the driven toper tooth of second below, first initiative toper tooth and first driven toper tooth intermeshing.

Preferably, the outer walls of the two sides of each blade are provided with second protective gaskets, and the second protective gaskets are symmetrical about the center line of each blade so as to avoid the phenomenon that adjacent blades are directly contacted to generate mutual friction.

Preferably, both ends of the blade are provided with first protective gaskets, and the first protective gaskets are symmetrical about the central line of the blade so as to avoid the phenomenon that the blade is in direct contact with the inner wall of the ventilation chamber to generate friction.

Preferably, a temperature sensing module is installed on the inner wall of the power cavity on the side, far away from the rotating shaft, of the rotary driving member, so that the blades are located inside the ventilation chamber to rotate correspondingly.

Preferably, lubricating structure's inside is equipped with sleeve, honeycomb duct and sealing plug in proper order, the power cavity top of pivot top is equipped with the sleeve, telescopic top extends to the outside of valve body to settle the treatment to the honeycomb duct.

Preferably, a guide pipe is arranged inside the sleeve, the bottom end of the guide pipe extends into the power cavity, and the top end of the guide pipe extends to the outside of the sleeve and is provided with a sealing plug so as to lubricate the rotating shaft.

Compared with the prior art, the utility model has the beneficial effects that: the fire damper with the explosion-proof function not only ensures the fire-proof effect when the fire damper is used, improves the safety when the fire damper is used, but also ensures the transmission efficiency of the rotating shaft when the fire damper is used;

(1) the rotary driving piece is opened, so that the rotary driving piece drives the second driving conical tooth to rotate through the rotating shaft and the guide shaft, the second driving conical tooth is meshed with the second driven conical tooth, the second driving conical tooth drives the transmission shaft to rotate through the second driven conical tooth, and the first driving conical tooth is meshed with the first driven conical tooth, so that the transmission shaft drives the first driven conical tooth to rotate through the first driving conical tooth, and the first driven conical tooth drives the moving blade to rotate through the moving shaft, so that the aim of synchronous rotation is fulfilled, efficient closing treatment of the ventilation chamber can be facilitated, and the fireproof effect of the fireproof valve in use is guaranteed;

(2) the second protective gaskets are arranged on the outer walls at two sides of the blades, and the first protective gaskets are arranged at two ends of the blades, so that the outer walls of the adjacent blades are not in direct contact any more, and the blades are not in direct contact with the inner wall of the ventilation chamber any more, further, the phenomenon that sparks are generated due to mutual friction can be avoided, the explosion-proof purpose can be achieved, and the safety of the fire-proof valve in use is improved;

(3) set up the honeycomb duct in the top of pivot through the sleeve, pull the sealing plug again for the honeycomb duct is the state of opening and shutting, injects lubricated liquid by the top of honeycomb duct this moment, makes lubricated liquid drip to the outer wall of pivot through the bottom of honeycomb duct, so that lubricate the processing to it, and then can reduce its phenomenon because of wearing and tearing produce the passivation, thereby the transmission efficiency of pivot when having ensured the fire prevention valve and using.

Drawings

FIG. 1 is a schematic front sectional view of the present invention;

FIG. 2 is an enlarged schematic view of the structure at A in FIG. 1 according to the present invention;

FIG. 3 is a schematic structural view of a lubricating structure of the present invention;

fig. 4 is a schematic view of the blade structure of the present invention.

In the figure: 1. a valve body; 2. a ventilation chamber; 3. a placing groove; 4. a movable shaft; 5. a blade; 6. a power cavity; 7. a temperature sensing module; 8. a rotary drive member; 9. a rotating shaft; 10. a lubrication structure; 1001. a sleeve; 1002. a flow guide pipe; 1003. a sealing plug; 11. a first driven conical tooth; 12. a first active tapered tooth; 13. a transmission body; 14. a guide shaft; 15. a second active tapered tooth; 16. a second driven conical tooth; 17. a drive shaft; 18. a first protective gasket; 19. a second protective gasket.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. 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.

Referring to fig. 1-4, an embodiment of the present invention is shown: a fire damper with an explosion-proof function comprises a valve body 1, wherein a ventilation chamber 2 is arranged at the bottom end inside the valve body 1, a power cavity 6 is arranged inside the valve body 1 above the ventilation chamber 2, equidistant placement grooves 3 are formed in the inner wall of one side of the ventilation chamber 2, a transmission machine body 13 is arranged on the outer wall of one side of the valve body 1, equidistant movable shafts 4 are arranged inside the ventilation chamber 2, and one ends of the movable shafts 4 are rotatably connected with the inner wall of the placement grooves 3;

the other end of the movable shaft 4 extends into the transmission body 13 and is provided with a first driven conical tooth 11, the outer wall of the movable shaft 4 is sleeved with a blade 5, the outer walls of two sides of the blade 5 are provided with second protective gaskets 19, and the second protective gaskets 19 are symmetrical about the central line of the blade 5;

when in use, the second protective gaskets 19 are arranged on the outer walls of the two sides of the blades 5, so that the phenomenon that the adjacent blades 5 are directly contacted to generate mutual friction is avoided;

the two ends of the blade 5 are both provided with first protective gaskets 18, and the first protective gaskets 18 are symmetrical about the center line of the blade 5;

when in use, the first protective gaskets 18 are arranged on the outer walls of the two ends of the blade 5, so that the phenomenon that the blade 5 is in direct contact with the inner wall of the ventilation chamber 2 to generate friction is avoided;

a rotary driving piece 8 is arranged on one side of the bottom of the power cavity 6 through a support, and a temperature sensing module 7 is arranged on the inner wall of the power cavity 6, which is far away from the rotating shaft 9, of the rotary driving piece 8;

when the device is used, the temperature inside the ventilation chamber 2 is monitored through the temperature sensing module 7, so that the blades 5 are positioned inside the ventilation chamber 2 to rotate correspondingly;

one end of the rotary driving part 8 is provided with a rotating shaft 9, the top of the power cavity 6 above the rotating shaft 9 is provided with a lubricating structure 10, the inside of the lubricating structure 10 is sequentially provided with a sleeve 1001, a flow guide pipe 1002 and a sealing plug 1003, the top of the power cavity 6 above the rotating shaft 9 is provided with the sleeve 1001, the top end of the sleeve 1001 extends to the outside of the valve body 1, the inside of the sleeve 1001 is provided with the flow guide pipe 1002, the bottom end of the flow guide pipe 1002 extends to the inside of the power cavity 6, and the top end of the flow guide pipe 1002 extends to the outside of the sleeve 1001 and is provided with the sealing plug 1003;

when the lubricating device is used, the guide pipe 1002 is arranged above the rotating shaft 9 through the sleeve 1001, the sealing plug 1003 is pulled, the guide pipe 1002 is in an opening and closing state, and lubricating liquid is injected from the top of the guide pipe 1002 at the moment, so that the lubricating liquid drops to the outer wall of the rotating shaft 9 through the bottom of the guide pipe 1002 to lubricate the rotating shaft 9;

a guide shaft 14 is arranged at one end of the rotating shaft 9 far away from the rotary driving part 8, one end of the guide shaft 14 far away from the rotating shaft 9 extends into the transmission body 13 and is provided with a second driving conical tooth 15, a transmission shaft 17 is arranged at the central position in the transmission body 13, and two ends of the transmission shaft 17 are rotatably connected with the inner walls at two ends of the transmission body 13;

a second driven conical tooth 16 is fixed on the outer wall of one end of the transmission shaft 17, and the second driven conical tooth 16 is meshed with the second driving conical tooth 15;

first driving conical teeth 12 with equal intervals are fixed on the outer wall of the transmission shaft 17 below the second driven conical teeth 16, and the first driving conical teeth 12 are meshed with the first driven conical teeth 11.

When the device is used, the rotary driving part 8 is opened to enable the rotary driving part to be driven by the rotating shaft 9 and the guide shaft 14 to drive the second driving conical tooth 15 to rotate, the second driving conical tooth 15 is driven by the second driven conical tooth 16 to drive the transmission shaft 17 to rotate, the transmission shaft 17 is driven by the first driving conical tooth 12 to drive the first driven conical tooth 11 to rotate, the first driven conical tooth 11 is driven by the movable shaft 4 to drive the blades 5 to rotate synchronously, efficient closing treatment can be further performed on the ventilation chamber 2, monitoring treatment is performed on the temperature inside the ventilation chamber 2 through the temperature sensing module 7, so that a corresponding instruction is sent to the rotary driving part 8 according to the temperature to enable the blades 5 to rotate inside the ventilation chamber 2, and further enable the ventilation chamber 2 to be in an opening and closing state, and then the second protective gaskets 19 are arranged on the outer walls on two sides of the blades 5, and the both ends that are located blade 5 are provided with first protection gasket 18, so that the outer wall of adjacent blade 5 no longer direct contact, and make blade 5 and ventilation chamber 2's inner wall no longer direct contact, and then can avoid its looks mutual friction and produce the phenomenon of spark, can reach explosion-proof purpose, set up honeycomb duct 1002 in the top of pivot 9 through sleeve 1001 at last, pull sealing plug 1003 again, make honeycomb duct 1002 be the state of opening and shutting, at this moment pour into lubricated liquid into by the top of honeycomb duct 1002, make lubricated liquid through the bottom drippage of honeycomb duct 1002 to the outer wall of pivot 9, so that lubricate it and handle, thereby accomplish the use of fire prevention valve.

Claims (6)

1. The fire damper with the explosion-proof function is characterized by comprising a valve body (1), wherein a ventilation chamber (2) is arranged at the bottom of the interior of the valve body (1), a power cavity (6) is arranged inside the valve body (1) above the ventilation chamber (2), equidistant placement grooves (3) are formed in the inner wall of one side of the ventilation chamber (2), a transmission machine body (13) is arranged on the outer wall of one side of the valve body (1), equidistant movable shafts (4) are arranged inside the ventilation chamber (2), one end of each movable shaft (4) is rotatably connected with the inner wall of the placement groove (3), the other end of each movable shaft (4) extends to the interior of the transmission machine body (13) and is provided with first driven conical teeth (11), blades (5) are sleeved on the outer wall of each movable shaft (4), a rotary driving piece (8) is mounted on one side of the bottom of the power cavity (6) through a support, the one end of rotatory driving piece (8) is equipped with pivot (9), power cavity (6) top of pivot (9) top is equipped with lubricating structure (10), the one end that rotatory driving piece (8) was kept away from in pivot (9) is equipped with guide shaft (14), the one end that pivot (9) were kept away from in guide shaft (14) extends to the inside of transmission organism (13) and is equipped with second initiative toper tooth (15), the inside central point department of putting of transmission organism (13) is equipped with transmission shaft (17), the both ends of transmission shaft (17) all are connected with the inner wall rotation at transmission organism (13) both ends, be fixed with second driven toper tooth (16) on the outer wall of transmission shaft (17) one end of transmission shaft (17), second driven toper tooth (16) and second initiative toper tooth (15) intermeshing, be fixed with equidistant first initiative toper tooth (12) on transmission shaft (17) outer wall of second driven toper tooth (16) below, the first driving conical tooth (12) is meshed with the first driven conical tooth (11).

2. A fire damper with explosion-proof function according to claim 1, characterized in that: the outer walls of the two sides of the blade (5) are provided with second protective gaskets (19), and the second protective gaskets (19) are symmetrical about the center line of the blade (5).

3. A fire damper with explosion-proof function according to claim 1, characterized in that: both ends of blade (5) all are equipped with first protection gasket (18), first protection gasket (18) are symmetrical about the central line of blade (5).

4. A fire damper with explosion-proof function according to claim 1, characterized in that: and a temperature sensing module (7) is arranged on the inner wall of the power cavity (6) on one side of the rotary driving piece (8) far away from the rotating shaft (9).

5. A fire damper with explosion-proof function according to claim 1, characterized in that: the inside of lubricating structure (10) is equipped with sleeve (1001), honeycomb duct (1002) and sealing plug (1003) in proper order, power cavity (6) top above pivot (9) is equipped with sleeve (1001), the top of sleeve (1001) extends to the outside of valve body (1).

6. A fire damper with explosion-proof function according to claim 5, characterized in that: the inside of sleeve (1001) is equipped with honeycomb duct (1002), the bottom of honeycomb duct (1002) extends to the inside of power cavity (6), the top of honeycomb duct (1002) extends to the outside of sleeve (1001) and installs sealing plug (1003).

Images