CN210128087U

CN210128087U - Fire control air supplement valve

Info

Publication number: CN210128087U
Application number: CN201920950106.6U
Authority: CN
Inventors: 刘泽
Original assignee: Tianjin Xinbin Ping'an Fire Safety Testing Service Co Ltd
Current assignee: Tianjin Xinbin Ping'an Fire Safety Testing Service Co Ltd
Priority date: 2019-06-22
Filing date: 2019-06-22
Publication date: 2020-03-06
Anticipated expiration: 2029-06-22

Abstract

The utility model relates to a fire control is mended wind valve belongs to the technical field of fire-fighting equipment, and it includes frame, valve leaf and blade axle, a side of valve leaf is provided with the flexure strip, the one end and the valve leaf fixed connection of flexure strip, one end along extending to the direction of keeping away from the valve leaf, the flexure strip stretches out the tip of keeping away from the valve leaf that it is connected and extends to the another side of valve leaf, two gaskets of the inboard fixedly connected with of frame, the different side butts of two valve leaves at gasket and both ends, the utility model discloses have the better effect of leakproofness.

Description

Fire control air supplement valve

Technical Field

The utility model belongs to the technical field of the technique of fire-fighting equipment and specifically relates to a fire control is mended blast gate.

Background

At present, a smoke exhaust and air supplement system is arranged in a fire-proof smoke-proof subarea, and air supplement is to supplement fresh air to the fire-proof smoke-proof subarea when a smoke exhaust fan is started, so that vacuum is not generated, and smoke is discharged more rapidly.

The traditional Chinese patent with reference to publication number CN207999510U discloses a fire-fighting air supply valve, which is installed in an air supply channel between a basement and the outside and comprises an outer frame with a hole in the middle, a plurality of valve blades rotatably connected to the inner side of the outer frame, a driving piece for driving the valve blades to rotate and a fuse, wherein the valve blades are parallelly distributed on the inner side of the outer frame in parallel and seal the outer frame.

The above prior art solutions have the following drawbacks: the machining precision of the outer frame and the valve leaf is difficult to guarantee completely, namely when the air supply valve is closed, a gap still exists between the outer frame and the valve leaf, fire or smoke cannot be blocked completely when a fire disaster occurs, and the potential safety hazard of a large degree exists.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a better fire control of leakproofness mends blast gate.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

the utility model provides a fire control air supplement valve, includes frame, valve leaf and blade axle, a side of valve leaf is provided with the flexure strip, the one end and the valve leaf fixed connection of flexure strip, one end along extending to the direction of keeping away from the valve leaf, the flexure strip stretches out the tip of keeping away from the valve leaf that it is connected and extends to the another side of valve leaf, two gasket of inboard fixedly connected with of frame, the gasket and the different side butt of two valve leaves at both ends.

By adopting the technical scheme, when the valve blade is driven to close by rotating the blade shafts, the elastic sheet is firstly abutted against the valve sheet adjacent to the valve sheet connected with the elastic sheet, and the elastic sheet is gradually pushed by the valve sheet adjacent to the valve sheet connected with the elastic sheet along with the gradual closing of the valve blade until the valve blade is completely closed, and at the moment, the elastic sheet is tightly abutted against the valve blade, so that a gap between two adjacent valve sheets is blocked by the elastic sheet, and the sealing property between the valve sheets is better; simultaneously along with closing gradually of valve block, the inseparable butt of valve block and gasket to the leakproofness of valve block and frame both sides is better, and is better when whole messenger's fire control air supplement valve closes, and fire behavior and smog are difficult for passing through fire control air supplement valve in following the gap, have reduced the potential safety hazard.

The utility model discloses further set up to: the elastic sheet is provided with a stretching part, the stretching part is positioned in the middle of the elastic sheet, the stretching part is formed by arc-shaped bulges of the middle of the elastic sheet towards the direction of the valve leaf far away from the fixed connection of the elastic sheet, and the stretching part and other parts of the elastic sheet are in arc transition.

Through adopting above-mentioned technical scheme, when rotating between the blade axle and driving the valve leaf and close, the flexure strip is at first rather than the adjacent valve block butt of valve block that connects, close gradually along with the valve leaf, the flexure strip is by the in-process that the adjacent valve block of self connected promoted gradually, thrust transmits tensile portion, tensile portion produces certain deformation, it receives great stress to have avoided flexure strip and valve block fixed connection department, make the connection that can stabilize between flexure strip and the valve block, the setting of arc transition simultaneously, the flexure strip department of buckling stress concentration has been avoided, it is not fragile to make the flexure strip.

The utility model discloses further set up to: and a sealing spring is fixedly connected between the stretching part and the valve leaf and is vertical to the plane of the valve leaf.

Through adopting above-mentioned technical scheme, sealing spring further provides the pulling force to the flexure strip, makes the tip of flexure strip can with the valve block inseparable butt that the valve block that self is connected is adjacent.

The utility model discloses further set up to: one side of the elastic sheet facing the valve leaf is fixedly connected with a sealing strip, and the sealing strip is opposite to a gap between two adjacent valve leaves.

Through adopting above-mentioned technical scheme, the valve leaf is thoroughly closed, and when the flexure strip was closely abutted with the valve leaf this moment, the sealing strip was closely abutted with the tip that two adjacent valve blocks are close to mutually to the leakproofness between adjacent valve block is further improved to the sealing strip.

The utility model discloses further set up to: the gasket extends along the inner wall of frame, and the gasket is close to the one end of valve leaf and extends to the central direction arc of frame, and the gasket is towards one side fixed connection sealing strip of valve leaf, the inner wall butt of sealing strip and frame.

By adopting the technical scheme, the valve plate is firstly abutted against the sealing piece along with the gradual closing of the valve plate, and then the valve plate gradually pushes the sealing piece, so that the elastic piece and the valve plate are tightly abutted, and the sealing property is ensured; when the arc of gasket extended and made the valve block promoted, the thrust that the valve block received can extend comparatively even distribution at the arc of gasket, had avoided the flexure strip stress concentration to appear and reduced life.

The utility model discloses further set up to: two inner sides of the outer frame, which are perpendicular to the blade shaft, are provided with grooves, rotating shafts are connected in the grooves in a rotating mode, the rotating shafts are abutted to one vertical side face and the bottom of each groove, and the rotating shafts are fixedly connected with blocking pieces.

Through adopting above-mentioned technical scheme, when the valve leaf was in the closed condition, rotate the pivot, made separation blade and the inseparable butt of valve leaf, the separation blade can be sealed tightly between the both ends of valve leaf along blade axle axis direction and the frame, further improves the leakproofness of fire control air supplement valve.

The utility model discloses further set up to: the frame is stretched out to the tip of pivot, and the tip fixedly connected with stationary blade of pivot, stationary blade fixedly connected with reset spring, the both sides of frame fixedly connected with middle part trompil's mounting panel respectively, and reset spring keeps away from the one end and the mounting panel fixed connection of pivot.

By adopting the technical scheme, when the rotating shaft rotates to drive the valve leaf to open, the valve leaf pushes the blocking piece until the valve leaf is completely opened, and the blocking piece is pushed in the groove by the valve leaf; when the rotating shaft rotates to drive the valve leaf to be closed, the reset spring is in a stretching state, and along with gradual closing of the valve leaf, the reset spring pulls the blocking piece to be tightly abutted with the valve leaf all the time, so that the blocking piece seals the valve leaf, the two ends in the axial direction of the blade shaft and the outer frame tightly, and meanwhile, the automatic sealing of the blocking piece is realized.

The utility model discloses further set up to: one end fixedly connected with driven gear of blade axle, the outside sliding connection of frame has two-sided rack, and two-sided rack and driven gear mesh rotate to be connected with the driving gear, and the driving gear meshes with two-sided rack, and the driving gear is connected with the motor.

Through adopting above-mentioned technical scheme, the motor drives the driving gear and rotates, and the driving gear drives two-sided rack and rotates, and two-sided rack drives driven gear and rotates, and driven gear drives the blade axle and rotates, and the blade axle drives the valve leaf and rotates to realize the switching of valve leaf, make the transmission more accurate.

To sum up, the utility model discloses a beneficial technological effect does:

1. by arranging the elastic sheet and the sealing sheet, the sealing performance between the valve sheets and the two sides of the outer frame is better, so that the sealing performance is better when the fire-fighting air supplement valve is closed integrally, fire and smoke are not easy to pass through the fire-fighting air supplement valve from gaps, and potential safety hazards are reduced;

2. by arranging the sealing spring, the sealing spring further provides tension for the elastic sheet, so that the end part of the elastic sheet can be tightly abutted with the adjacent valve sheet of the valve sheet connected with the elastic sheet;

3. through setting up pivot, separation blade, stationary blade, reset spring, the separation blade is sealed inseparable to between valve leaf and the both ends and the frame along blade axle axis direction, has realized the self-sealing of separation blade simultaneously.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a cross-sectional view of the present invention taken perpendicular to the blade axis;

FIG. 3 is an enlarged partial schematic view of portion A of FIG. 2;

fig. 4 is a cross-sectional view perpendicular to the rotation axis of the present invention.

In the figure, 1, an outer frame; 11. sealing the sheet; 12. a groove; 13. mounting a plate; 14. a valve leaf; 15. a blade shaft; 2. a first seal assembly; 21. an elastic sheet; 211. a stretching section; 22. a seal spring; 221. a sealing strip; 3. a second seal assembly; 31. a rotating shaft; 311. a fixing sheet; 32. a baffle plate; 33. a return spring; 4. a drive assembly; 41. a driven gear; 42. a double-sided rack; 43. a driving gear; 431. an electric motor.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1 and 2, for the utility model discloses a fire control is mended wind valve, including frame 1, valve leaf 14 and blade axle 15, valve leaf 14 is provided with first seal assembly 2, and frame 1 side inboard is provided with second seal assembly 3 (refer to fig. 4) and gasket 11, and first seal assembly 2 makes the leakproofness between the valve leaf 14 better, and second seal assembly 3 and gasket 11 make the leakproofness between frame 1 and the valve leaf 14 better to the leakproofness is better when making fire control mend wind valve close.

Referring to fig. 1, the driving assembly 4 includes a driven gear 41, a double-sided rack 42 and a driving gear 43, the driven gear 41 is fixedly connected to one end of the vane shaft 15, the double-sided rack 42 is slidably connected to the outside of the outer frame 1, the double-sided rack 42 is engaged with all the driven gears 41 simultaneously, the outer frame 1 is rotatably connected with the driving gear 43, the driving gear 43 is engaged with the double-sided rack 42, and the driving gear 43 is connected with a motor 431 for driving the driving gear to rotate. When the motor 431 is started, the motor 431 drives the driving gear 43 to rotate the driving gear 43 to drive the double-sided rack 42 to slide, the double-sided rack 42 slides to drive the driven gear 41 to rotate, the driven gear 41 drives the vane shaft 15 to rotate, the vane shaft 15 rotates to drive the valve vane 14 to rotate, so that the valve vane 14 is opened, the motor 431 rotates reversely, and the valve vane 14 is closed.

Referring to fig. 2 and 3, the first sealing assembly 2 includes an elastic sheet 21 and a sealing spring 22, the elastic sheet 21 is disposed at one end of the elastic sheet 21 on one side of the valve vane 14 and fixedly connected to the valve vane 14, the one end extends along a plane of the valve vane 14 in a direction away from the valve vane 14, when the elastic sheet 21 extends to a middle position of the elastic sheet 21 itself, the elastic sheet 21 extends in a direction away from the valve vane and then extends in a direction close to the valve vane to form an arc-shaped protrusion, and an end of the elastic sheet 21 extending away from the valve vane 14 connected thereto extends to the other side of the valve vane 14. The arc-shaped protrusion is a stretching part 211, and the stretching part 211 and the other parts of the elastic sheet 21 form an arc-shaped transition. A sealing spring 22 is fixedly connected between the stretching part 211 and the valve leaf 14, and the sealing spring 22 is perpendicular to the plane of the valve leaf 14. One side of the elastic sheet 21 facing the valve leaf 14 is fixedly connected with a sealing strip 221, and the sealing strip 221 directly faces the gap between two adjacent valve leaves 14. When the motor 431 rotates reversely, and the valve vane 14 is closed, the elastic piece 21 gradually approaches to the adjacent valve vane 14 and is tightly abutted to the valve vane 14, and meanwhile, the sealing strip 221 seals a gap between the two valve vanes 14, so that the sealing performance between the valve vanes 14 is ensured.

Referring to fig. 2 and 3, two sealing pieces 11 are fixedly connected to the inner side of the outer frame 1, and the sealing pieces 11 are in contact with different side surfaces of two valve leaves 14 at both ends. The sealing strip 11 extends along the inner wall of the outer frame 1, one end of the sealing strip 11 close to the valve leaf 14 extends in an arc shape towards the center direction of the outer frame 1, the sealing strip 11 is fixedly connected with a sealing strip 221 towards one side of the valve leaf 14, and the sealing strip 221 is abutted against the inner wall of the outer frame 1. The valve plates are gradually closed, the sealing sheet 11 is firstly abutted to the valve blades 14, along with the gradual closing of the valve blades 14, the sealing sheet 11 is gradually pushed by the valve plates adjacent to the valve plates connected with the sealing sheet 11 until the valve blades 14 are completely closed, the valve blades 14 are tightly abutted to the valve blades 14 at the moment, meanwhile, the sealing strips 221 are abutted to the end portions, close to the outer frame 1, of the valve blades 14, and the sealing of the two sides of the outer frame 1 is guaranteed to be tight.

Referring to fig. 4, the second sealing assembly 3 includes a rotating shaft 31 and a blocking piece 32, two inner sides of the outer frame 1 perpendicular to the blade shaft 15 are provided with grooves 12, the rotating shaft 31 is rotatably connected in the grooves 12, the rotating shaft 31 abuts against a vertical side surface and a bottom of the groove 12 close to the blade shaft 15, smoke generated by fire is prevented from passing through a gap between the rotating shaft 31 and the groove 12, and sealing performance is ensured. The end of the rotating shaft 31 extends out of the outer frame 1, the end of the rotating shaft 31 is fixedly connected with a fixing piece 311, the fixing piece 311 is coplanar with the rotating axis of the rotating shaft 31, the fixing piece 311 is fixedly connected with a return spring 33, two sides of the outer frame 1 are respectively fixedly connected with a mounting plate 13 with a hole in the middle, and one end, far away from the rotating shaft 31, of the return spring 33 is fixedly connected with the mounting plate 13. When the rotating shaft 31 rotates to drive the valve vane 14 to open, the valve vane 14 pushes the blocking piece 32 until the valve vane 14 is completely opened, and the blocking piece 32 is pushed into the groove 12 by the valve vane 14; when the rotating shaft 31 rotates to drive the valve vane 14 to close, the return spring 33 is in a stretching state, and along with the gradual closing of the valve vane 14, the return spring 33 pulls the blocking piece 32 to be always and tightly abutted to the valve vane 14, so that the blocking piece 32 is tightly sealed between the valve vane 14 and the two ends of the outer frame 1 along the axial direction of the vane shaft 15, and the automatic sealing of the blocking piece 32 is realized.

The implementation principle of the embodiment is as follows: when the valve vane 14 is in an open state, the motor 431 is started, the motor 431 drives the driving gear 43 to rotate, the driving gear 43 drives the double-sided rack 42 to rotate, the double-sided rack 42 drives the driven gear 41 to rotate, the driven gear 41 drives the vane shaft 15 to rotate, the vane shaft 15 drives the valve vane 14 to rotate, the valve vane 14 is gradually driven to close, along with the gradual closing of the valve vane 14, the elastic sheet 21 is firstly abutted against a valve sheet adjacent to the connected valve sheet, along with the gradual closing of the valve vane 14, the elastic sheet 21 is gradually pushed by a valve sheet adjacent to the valve sheet connected with the elastic sheet 21 until the valve vane 14 is completely closed, at the moment, the elastic sheet 21 is tightly abutted against the valve vane 14, the sealing strip 221 is abutted against a gap between the adjacent valve vanes 14, so that a gap between two adjacent valve sheets is blocked by the elastic sheet 21, and the sealing; meanwhile, with the gradual closing of the valve plates, the sealing plate 11 is firstly abutted against the valve blade 14, with the gradual closing of the valve blade 14, the sealing plate 11 is gradually pushed by the valve plate adjacent to the valve plate connected with the sealing plate 11 until the valve blade 14 is completely closed, and at the moment, the valve blade 14 is tightly abutted against the valve blade 14, so that the sealing performance of the valve blade 14 and the two sides of the outer frame 1 is better; simultaneously, when valve leaf 14 was in the open mode, reset spring 33 was in tensile state, along with closing gradually of valve leaf 14, reset spring 33 pulling separation blade 32 closely butt always with valve leaf 14, thereby separation blade 32 is sealed inseparable between valve leaf 14 and the both ends and the frame 1 along blade shaft 15 axis direction, the self sealing of separation blade 32 has been realized simultaneously, thereby the leakproofness is better when wholly making fire control air supplement valve close, fire behavior and smog are difficult for following the gap through fire control air supplement valve, potential safety hazard has been reduced.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a fire control air supplement valve, includes frame (1), valve leaf (14) and blade axle (15), its characterized in that: one side of valve leaf (14) is provided with flexure strip (21), the one end and the valve leaf (14) fixed connection of flexure strip (21), one end is along extending to the direction of keeping away from valve leaf (14), flexure strip (21) stretch out the tip of keeping away from valve leaf (14) that it is connected and extend to the another side of valve leaf (14), two sealing pieces (11) of inboard fixedly connected with of frame (1), sealing piece (11) and the different side butt of two valve leaves (14) at both ends.

2. A fire fighting air supply valve according to claim 1, characterized in that: the elastic sheet (21) is provided with a stretching part (211), the stretching part (211) is positioned in the middle of the elastic sheet (21), the stretching part (211) is formed by the arc-shaped bulge of the middle of the elastic sheet (21) towards the direction far away from the fixedly connected valve leaf (14), and the stretching part (211) and the other parts of the elastic sheet (21) are in arc-shaped transition.

3. A fire fighting air supply valve according to claim 2, characterized in that: and a sealing spring (22) is fixedly connected between the stretching part (211) and the valve leaf (14), and the sealing spring (22) is vertical to the plane of the valve leaf (14).

4. A fire fighting air supply valve according to claim 1, characterized in that: one side of the elastic sheet (21) facing the valve leaf (14) is fixedly connected with a sealing strip (221), and the sealing strip (221) is over against a gap between two adjacent valve leaves (14).

5. A fire fighting air supply valve according to claim 1, characterized in that: the sealing strip (11) extends along the inner wall of the outer frame (1), one end of the sealing strip (11) close to the valve leaf (14) extends towards the center direction arc of the outer frame (1), the sealing strip (11) is fixedly connected with a sealing strip (221) towards one side of the valve leaf (14), and the sealing strip (221) is abutted to the inner wall of the outer frame (1).

6. A fire fighting air supply valve according to claim 1, characterized in that: two insides of the outer frame (1) perpendicular to the blade shaft (15) are provided with grooves (12), the grooves (12) are rotatably connected with rotating shafts (31), the rotating shafts (31) are abutted to one vertical side face and the bottom of the grooves (12), and the rotating shafts (31) are fixedly connected with blocking pieces (32).

7. A fire fighting air supply valve according to claim 6, characterized in that: the end of the rotating shaft (31) extends out of the outer frame (1), the end of the rotating shaft (31) is fixedly connected with a fixing piece (311), a reset spring (33) is fixedly connected with the fixing piece (311), the two sides of the outer frame (1) are respectively fixedly connected with a mounting plate (13) with a hole in the middle, and one end, far away from the rotating shaft (31), of the reset spring (33) is fixedly connected with the mounting plate (13).

8. A fire fighting air supply valve according to claim 1, characterized in that: one end fixedly connected with driven gear (41) of leaf axle (15), the outside sliding connection of frame (1) has two-sided rack (42), and two-sided rack (42) and driven gear (41) mesh, frame (1) rotate and are connected with driving gear (43), and driving gear (43) and two-sided rack (42) mesh, and driving gear (43) are connected with motor (431).