CN213017943U

CN213017943U - Novel smoke-discharging fire-proof valve

Info

Publication number: CN213017943U
Application number: CN202021798610.8U
Authority: CN
Inventors: 樊德泗
Original assignee: Shaoxing Hangyu Xingrong Fan Co ltd
Current assignee: Shaoxing Hangyu Xingrong Fan Co ltd
Priority date: 2020-08-25
Filing date: 2020-08-25
Publication date: 2021-04-20
Anticipated expiration: 2030-08-25

Abstract

The utility model discloses a novel fire damper discharges fume relates to ventilation equipment, and the impact that flue gas and intensity of a fire produced when aiming at solving the conflagration and taking place leads to the blade subassembly to take place to deflect under the high pressure easily to influence the problem of the gas tightness of fire damper discharges fume, its technical scheme main points are: including the valve body, rotate on the valve body and be connected with a plurality of pivots that run through the valve body, can dismantle in the pivot and be connected with the blade, one side of valve body is equipped with the actuating mechanism who is used for synchronous rotor blade with a plurality of pivot fixed connection, and swing joint has the slide between actuating mechanism's the one end is kept away from in a plurality of pivots. The utility model discloses a thereby the blade of valve body is sealed in the restriction of the end of the piece of contradicting slide in the locking mechanism takes place to deflect under the hot pressing, improves the stability of blade and the gas tightness each other, improves the ability of separating the cigarette back-fire relief of smoke damper, and the blade passes through centre gripping groove and holding piece and can dismantle with the pivot simultaneously and be connected, reduces the cost of maintenance of smoke damper, economical and practical.

Description

Novel smoke-discharging fire-proof valve

Technical Field

The utility model relates to a ventilation equipment, more specifically say, it relates to a novel fire prevention valve discharges fume.

Background

Fire dampers are widely used in various industries, but a smoke exhaust fire damper is the most used one in daily life. The smoke exhaust fire damper plays a role in automatically reducing the fire in the fire occurrence process, is generally installed on a pipeline of a mechanical smoke exhaust system and is in an open state at ordinary times, smoke exhaust is opened when a fire occurs, the smoke exhaust fire damper is closed when the temperature of smoke in a smoke exhaust pipeline reaches 280 ℃, the smoke exhaust fire damper meets the requirements of smoke leakage amount and fire resistance integrity within a certain time, and the smoke exhaust fire damper plays a role in isolating smoke and fire retardation.

General smoke exhaust fire prevention valve comprises the valve body and the blade subassembly of rotation connection in the valve body, drives the blade subassembly through fusing pole or actuating mechanism and deflects to reach and seal the valve body and play and separate the effect of cigarette back-fire relief, but the impact that flue gas and intensity of a fire produced when the conflagration takes place leads to the blade subassembly to take place to deflect under the high pressure easily, thereby influences smoke exhaust fire prevention valve's gas tightness.

Therefore, a new solution is needed to solve this problem.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a novel smoke exhaust fire prevention valve, thereby the blade of the restriction closed valve body of the end through the support piece conflict slide in the locking mechanism deflects under the hot pressing, improves the stability of blade and gas tightness each other, improves smoke exhaust fire prevention valve's the ability that separates the cigarette back-fire relief, and the blade passes through centre gripping groove and holding piece can be dismantled with the pivot simultaneously and be connected, reduces smoke exhaust fire prevention valve's cost of maintenance, economical and practical.

The above technical purpose of the present invention can be achieved by the following technical solutions: the utility model provides a novel smoke exhaust fire prevention valve, includes the valve body, it is connected with a plurality of pivots that run through the valve body to rotate on the valve body, can dismantle in the pivot and be connected with the blade, one side of valve body is equipped with the actuating mechanism who is used for synchronous rotor blade with a plurality of pivot fixed connection, and is a plurality of swing joint has the slide between actuating mechanism's the one end is kept away from in the pivot, be equipped with on the valve body and be used for holding the lock piece that the slide runs through, sliding connection has the slide end of contradicting in order to restrict blade pivoted locking mechanism when.

Through adopting above-mentioned technical scheme, the blade can be dismantled in the valve body through the pivot, when the blade because high temperature and high-pressure effect take place deformation and damage, reduce the cost of maintenance of the fire prevention valve of discharging fume, actuating mechanism directly drives a plurality of pivots and rotates in step simultaneously, improve the efficiency that the valve body was sealed to the blade, and then improve the effect that separates the cigarette back-fire relief of the fire prevention valve of discharging fume, in the pivot pivoted, can drive the slide and carry out the displacement, when the slide slides in the locking piece, thereby the blade rotation of the end restriction closed valve body through locking mechanism conflict slide, improve stability and leakproofness between the blade, and then improve the effect that separates the cigarette back-fire relief of the fire prevention valve of discharging fume.

The utility model discloses further set up to: actuating mechanism includes a plurality of and pivot fixed connection's bull stick and telescopic cylinder, and is a plurality of the one end of bull stick articulates jointly has the connecting rod that sets up along valve body length direction, one the connecting rod is kept away from to the bull stick one end is passed through the articulated elements and is connected with telescopic cylinder's expansion end rotation, telescopic cylinder's stiff end is articulated with the periphery wall of valve body.

Through adopting above-mentioned technical scheme, drive a bull stick through telescopic cylinder's flexible and take place to deflect, because the one end of a plurality of bull sticks articulates the connecting rod jointly, and then drives the connecting rod and deflect, realize a plurality of pivots synchronous rotation, the adjusting vane of being convenient for seals the valve body.

The utility model discloses further set up to: one end fixedly connected with that actuating mechanism was kept away from in the pivot and slide sliding connection's driving plate, set up the logical groove that sets up along its length direction on the driving plate, fixedly connected with runs through the guide post that leads to the groove on the slide, fixedly connected with and slide sliding connection's deflector on the valve body.

Through adopting above-mentioned technical scheme, through driving plate and pivot fixed connection to when the pivot rotates, enable the driving plate and take place to deflect, because the slide runs through logical groove and driving plate sliding connection through the guide post, and then when the pivot rotates, can high-efficient smooth and easy drive slide carry out the displacement.

The utility model discloses further set up to: the locking mechanism comprises a supporting block and an elastic piece, a sliding groove used for accommodating the supporting block and the elastic piece and communicated with the accommodating groove is formed in the locking piece, and the elastic piece always provides acting force towards the accommodating groove.

Through adopting above-mentioned technical scheme, provide through the elastic component and support the piece and push to the holding tank, when the pivot drove the blade and rotate closed valve body, support the piece and can be located the holding tank under the impetus of elastic component, contradict the end of slide, and then to the displacement of restriction slide, and then improve the intensity that the blade closed valve body.

The utility model discloses further set up to: the locking piece is provided with a guide groove communicated with the sliding groove, and the guide groove is internally and slidably connected with a shifting block fixedly connected with the abutting block.

By adopting the technical scheme, through the shifting block connected with the abutting block, people can conveniently displace the abutting block through the sliding shifting block, and the state that the blade seals the valve body can be conveniently released.

The utility model discloses further set up to: one side of the shifting block, which is back to the abutting block, is concavely provided with an arc-shaped part.

Through adopting above-mentioned technical scheme, through the setting of arc portion, increase hand and support the area of contact between the piece to increase hand and support the frictional force between the piece, be convenient for people slide and support the piece.

The utility model discloses further set up to: offer in the pivot and be used for holding the centre gripping groove that the blade passed, fixedly connected with is used for the centre gripping piece of centre gripping blade on the periphery wall of pivot, and is adjacent the centre gripping piece passes through fastening bolt and blade fixed connection.

Through adopting above-mentioned technical scheme, hold the blade through the centre gripping groove and pass the pivot to carry out the centre gripping through the centre gripping piece to the both sides of blade, and fix the blade through fastening bolt, improve the joint strength between blade and the pivot, and then improve the anti deformability and the life of blade.

The utility model discloses further set up to: the end of the rotating shaft penetrating through the valve body is provided with a threaded section, and an upper nut and a lower nut which are used for clamping the rotating rod or the transmission plate are connected to the threaded section in a threaded mode.

Through adopting above-mentioned technical scheme, bull stick and driving plate carry out the centre gripping through last nut with pivot threaded connection and lower nut, and the people of being convenient for dismantle the change pivot in the same direction as bad, and improve the joint strength between bull stick and driving plate and the pivot.

To sum up, the utility model discloses following beneficial effect has:

the blade can be dismantled in the valve body through the pivot, when the blade is damaged because deformation takes place under high temperature and the high-pressure effect, reduce the cost of maintenance of fire damper of discharging fume, actuating mechanism directly drives a plurality of pivots and rotates in step simultaneously, improve the efficiency that the valve body was sealed to the blade, and then improve the effect that separates the cigarette back-fire relief of fire damper of discharging fume, in pivot pivoted, can drive the slide and carry out the displacement, when the slide slides in the lock piece, thereby the blade rotation of the valve body is sealed in the restriction of the end through the conflict slide of locking mechanism, improve stability and leakproofness between the blade, and then improve the cigarette back-fire relief effect that separates of fire damper of discharging fume.

Drawings

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

FIG. 2 is an enlarged view of portion A of FIG. 1;

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

FIG. 4 is an enlarged view of portion B of FIG. 3;

FIG. 5 is a schematic structural view of the middle shaft and the blades of the present invention;

FIG. 6 is an enlarged view of portion C of FIG. 5;

fig. 7 is a schematic structural diagram of the locking mechanism of the present invention.

In the figure: 1. a valve body; 2. a rotating shaft; 3. a blade; 4. a slide plate; 5. a locking member; 6. a rotating rod; 7. a telescopic cylinder; 8. a connecting rod; 9. an articulation member; 10. a drive plate; 11. a through groove; 12. a guide post; 13. a guide plate; 14. a resisting block; 15. an elastic member; 16. a chute; 17. a guide groove; 18. shifting blocks; 19. a clamping groove; 20. a clamping piece; 21. screwing a nut; 22. and (5) a lower nut.

Detailed Description

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

The utility model provides a novel smoke exhaust fire prevention valve, as shown in fig. 1 and fig. 3, including valve body 1, it is connected with a plurality of pivots 2 that run through valve body 1 to rotate on the valve body 1, can dismantle in the pivot 2 and be connected with blade 3, one side of valve body 1 articulates there is the actuating mechanism who is used for synchronous rotor blade 3 with a plurality of 2 fixed connections in pivot, swing joint has slide 4 between actuating mechanism's the one end is kept away from in a plurality of pivots 2, fixedly connected with is used for holding slide 4 lock piece 5 that runs through on the valve body 1, sliding connection has 4 ends of slide of contradicting in order to restrict 3 pivoted locking mechanism of blade when 3 seals valve body.

As shown in fig. 2, one end of the rotating shaft 2 far from the driving mechanism is fixedly connected with a transmission plate 10 connected with the sliding plate 4 in a sliding manner, the transmission plate 10 is provided with a through groove 11 arranged along the length direction thereof, the sliding plate 4 is welded with a guide post 12 penetrating through the through groove 11 to realize the sliding connection of the guide post 12 in the through groove 11, the valve body 1 is fixedly connected with a guide plate 13 connected with the sliding plate 4 in a sliding manner, the guide plate 13 is arranged in parallel with the sliding plate 4 and is positioned at one side of the sliding plate 4 facing the rotating shaft 2, the edge of the valve body 1 is welded on the locking piece 5, a sliding groove 16 used for accommodating the sliding plate 4 to penetrate through the accommodating groove and horizontally and vertically arranged with the accommodating groove is arranged in the locking piece 5, the locking mechanism comprises a resisting block 14 and an elastic piece 15, the resisting block 14 is connected in the sliding groove 16 in a sliding manner, a compression spring as the elastic piece, when the abutting block 14 is located in the sliding groove 16, the compression spring is in a compressed state, and the elastic piece 15 always provides acting force of the abutting block 14 towards the direction of the accommodating groove.

As shown in fig. 7, a guide groove 17 communicated with the sliding groove 16 is formed in the locking member 5, the longitudinal section of the guide groove 17 is T-shaped, the small end of the guide groove 17 is communicated with the sliding groove 16, a shifting block 18 bonded with the abutting block 14 is slidably connected in the guide groove 17, an arc-shaped portion is formed by recessing one side of the shifting block 18, which is opposite to the abutting block 14, and a plurality of anti-skid threads arranged along the width direction of the arc-shaped portion are formed on the outer surface of the arc-shaped portion.

As shown in fig. 4 and 7, the driving mechanism includes a plurality of rotating rods 6 and telescopic cylinders 7 which are fixedly connected with the rotating shaft 2, one end of each rotating rod 6 is hinged with a connecting rod 8 which is arranged along the length direction of the valve body 1, one end of each rotating rod 6, which is far away from the connecting rod 8, is rotatably connected with the movable end of each telescopic cylinder 7 through an articulated piece 9, the fixed end of each telescopic cylinder 7 is hinged with the peripheral wall of the valve body 1, and particularly, the movable end of each telescopic cylinder 7 is fixedly connected with the articulated piece 9 through a threaded connection mode, the telescopic cylinder 7 adopts a servo telescopic cylinder and is connected with a temperature controller, and when the temperature reaches 208 ℃, the telescopic cylinder 7 is driven to act.

As shown in fig. 5 and 6, a clamping groove 19 for accommodating the blade 3 to pass is formed in the rotating shaft 2, the clamping groove 19 is located in the middle position of the rotating shaft 2 and has the same length as the inside of the valve body 1, the groove width of the clamping groove 19 is the same as the thickness of the blade 3, the blade 3 is in interference fit with the rotating shaft 2 when passing through the clamping groove 19, clamping pieces 20 located on two sides of the blade 3 and used for clamping the blade 3 are welded on the outer peripheral wall of the rotating shaft 2, the adjacent clamping pieces 20 penetrate through the blade 3 through fastening bolts to realize the fixed connection of the blade 3, a threaded section is formed at the end of the rotating shaft 2 penetrating through the valve body 1, and an upper nut 21 and a lower nut 22 for clamping the rotating rod 6 or the transmission plate 10 are connected to.

The working process is as follows: open the smoke evacuation during the conflagration, when the personnel evacuation and smoke temperature reach 280 degrees in the exhaust pipe, make telescopic cylinder 7 action through the temperature controller, when telescopic cylinder 7 is elongated, because telescopic cylinder 7 articulates on valve body 1, and telescopic cylinder 7's expansion end passes through articulated elements 9 and is connected with the bull stick 6 rotation, thereby make bull stick 6 use pivot 2 to rotate as the axle center, because the both ends of pivot 2 are through last nut 21 and lower nut 22 threaded connection in the screw thread section, it is fixed to carry out the centre gripping to bull stick 6 and driving plate 10, when realizing rotating with telescopic cylinder 7 articulated bull stick 6, make driving plate 10 and with connecting rod 8 and the slide 4 of bull stick 6 and driving plate 10 being connected carry out the displacement, thereby drive all the other pivot 2 synchronous rotations.

Because the rotating shaft 2 is provided with the clamping groove 19, the blade 3 is clamped with the rotating shaft 2 through the clamping sheet 20 and the clamping groove 19, and penetrates through the clamping sheet 20 and the blade 3 through the fastening bolt, the connection strength between the blade 3 and the rotating shaft 2 is improved, when the rotating shaft 2 rotates, the blade 3 can be driven to rotate, so that a channel in the valve body 1 is sealed, when the rotating shaft 2 rotates, the sliding plate 4 slides along the length direction of the guide plate 13 due to the through groove 11 formed in the transmission plate 10 and the guide post 12 fixedly connected and sliding in the through groove 11 on the transmission plate 10, meanwhile, the resisting block 14 is always contacted with the surface of the sliding plate 4 under the extrusion action of the elastic piece 15 and the guide action of the sliding groove 16, and when the sliding plate 4 displaces and the blade 3 seals the valve body 1, the resisting block 14 extends into the accommodating groove under the extrusion action of the elastic piece 15 to contact with the end of the sliding plate 4, thereby the displacement of restriction slide 4 to the rotation of restriction pivot 2 makes blade 3 keep the closure to valve body 1, improves the gas tightness between the blade 3 in the valve body 1, improves blade 3's shock resistance simultaneously, improves the effect that separates the cigarette back-fire relief of smoke exhaust fire damper.

When blade 3 because long-term use appears deformation and damages, can be through dismantling fixing bolt to take out blade 3 from pivot 2 in, change the blade 3 of damage, reduce the cost of fire damper maintenance of discharging fume.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a novel fire damper discharges fume which characterized in that: including valve body (1), it is connected with a plurality of pivot (2) that run through valve body (1) to rotate on valve body (1), can dismantle in pivot (2) and be connected with blade (3), one side of valve body (1) is equipped with the actuating mechanism who is used for synchronous rotor blade (3) with a plurality of pivot (2) fixed connection, and is a plurality of swing joint has slide (4) between actuating mechanism's the one end is kept away from in pivot (2), be equipped with on valve body (1) and be used for holding lock piece (5) that slide (4) run through, sliding connection has slide (4) end in order to restrict blade (3) pivoted locking mechanism in lock piece (5) when blade (3) seal valve body (1).

2. A novel smoke exhaust fire damper as claimed in claim 1, wherein: actuating mechanism includes a plurality of bull stick (6) and telescopic cylinder (7) with pivot (2) fixed connection, and is a plurality of the one end of bull stick (6) articulates jointly has connecting rod (8) that sets up along valve body (1) length direction, one the one end that connecting rod (8) were kept away from in bull stick (6) is passed through articulated elements (9) and is connected with the expansion end rotation of telescopic cylinder (7), the stiff end of telescopic cylinder (7) is articulated with the periphery wall of valve body (1).

3. A novel smoke exhaust fire damper as claimed in claim 1, wherein: one end fixedly connected with and slide (4) sliding connection's driving plate (10) are kept away from actuating mechanism in pivot (2), set up logical groove (11) that set up along its length direction on driving plate (10), fixedly connected with runs through guide post (12) that lead to groove (11) on slide (4), fixedly connected with and slide (4) sliding connection's deflector (13) are gone up in valve body (1).

4. A novel smoke exhaust fire damper as claimed in claim 1, wherein: the sliding plate locking mechanism is characterized in that an accommodating groove used for accommodating the sliding plate (4) to penetrate is formed in the locking piece (5), the locking mechanism comprises a supporting block (14) and an elastic piece (15), a sliding groove (16) used for accommodating the supporting block (14) and the elastic piece (15) and communicated with the accommodating groove is formed in the locking piece (5), and the elastic piece (15) always provides acting force of the supporting block (14) towards the direction of the accommodating groove.

5. A novel smoke exhaust fire damper as claimed in claim 4, wherein: the locking piece (5) is provided with a guide groove (17) communicated with the sliding groove (16), and the guide groove (17) is internally and slidably connected with a shifting block (18) fixedly connected with the abutting block (14).

6. A novel smoke exhaust fire damper as claimed in claim 5, wherein: one side of the shifting block (18) back to the abutting block (14) is concavely provided with an arc-shaped part.

7. A novel smoke exhaust fire damper as claimed in claim 1, wherein: offer on pivot (2) and be used for holding centre gripping groove (19) that blade (3) passed, fixedly connected with is used for centre gripping piece (20) of centre gripping blade (3) on the periphery wall of pivot (2), and is adjacent centre gripping piece (20) pass through fastening bolt and blade (3) fixed connection.

8. A novel smoke exhaust fire damper as claimed in claim 2 or 3, wherein: the end of the rotating shaft (2) penetrating through the valve body (1) is provided with a threaded section, and the threaded section is connected with an upper nut (21) and a lower nut (22) which are used for clamping the rotating rod (6) or the transmission plate (10) in a threaded mode.