CN211624206U

CN211624206U - Pipeline smoke-discharging fire-proof valve

Info

Publication number: CN211624206U
Application number: CN201922288748.7U
Authority: CN
Inventors: 丁小军
Original assignee: Jingjiang Lianchuang Air Conditioning Equipment Engineering Co ltd
Current assignee: Jingjiang Lianchuang Air Conditioning Equipment Engineering Co ltd
Priority date: 2019-12-19
Filing date: 2019-12-19
Publication date: 2020-10-02
Anticipated expiration: 2029-12-19

Abstract

The utility model discloses a pipeline smoke exhaust fire prevention valve, its technical scheme main points are: the valve comprises a valve frame, wherein a sliding groove is formed in one side of an opening in the valve frame, a first stop gate is connected in the sliding groove through a plurality of springs, a second stop gate is connected to the other side of the opening in the valve frame in a rotating manner, a placing groove is formed in the valve frame, a servo motor is fixed in the placing groove, a fixed rod is fixed at the end part of a motor shaft of the servo motor and is fixed above the second stop gate and drives the second stop gate to rotate, a first stop strip with a semicircular cross section is fixed on one surface of the first stop gate, a second stop strip is fixed on one surface of the second stop gate, and the second stop strip is provided with an arc-shaped surface matched with the surface of the first stop strip; the valve does not need a complex linkage mechanism for opening and closing, is simple and has good sealing performance.

Description

Pipeline smoke-discharging fire-proof valve

Technical Field

The utility model relates to an air conditioner accessory field, in particular to pipeline smoke exhaust fire prevention valve.

Background

The smoke exhaust fire damper is usually installed in a large air conditioning air supply system for use. It is installed on the air supply pipeline of ventilation and air conditioning system, and is opened at ordinary times. When the temperature of the flue gas in the pipeline reaches a certain temperature in a fire disaster, the flue gas can be closed, the requirements of the smoke leakage amount and the fire resistance integrity can be met within a certain time, and the valve for isolating fire resistance is realized.

Referring to the existing chinese patent with publication number CN209743680U, it discloses a flue fire damper, which includes a flue gas channel composed of a housing, one end of the flue gas channel has an air inlet, the opposite end is an air outlet end, the air outlet end is provided with an end face adapted to the flue gas channel, the end face is provided with an air outlet, the end face is provided with a rotatable valve plate corresponding to the air outlet and only capable of opening in the air outlet direction, the end face is provided with a high temperature closing device capable of forcibly closing the valve plate to the air inlet side at a set temperature and having a locking mechanism, so that the valve plate is always in a closed state.

The high-temperature closing device in the flue fire damper enables the valve plate in the opening state to be forcibly closed, and the valve plate of the fire damper is always in the locking and closing state, so that the life safety of residents is protected, and the safety is high. However, the above-mentioned fire damper for flue still has some disadvantages, such as: the sealing performance is poor, and the structure for automatically closing the fire damper is complex.

SUMMERY OF THE UTILITY MODEL

To the problem mentioned in the background art, the utility model aims at providing a pipeline smoke exhaust fire prevention valve to solve the problem mentioned in the background art.

The above technical purpose of the present invention can be achieved by the following technical solutions:

a pipeline smoke-discharging fire-proof valve comprises a valve frame, wherein a sliding groove is formed in one side of an opening in the valve frame, a first stop gate is connected in the sliding groove through a plurality of springs, a second stop gate is rotatably connected to the other side of the opening in the valve frame, a placing groove is formed in the valve frame, a servo motor is fixed in the placing groove, a fixing rod is fixed at the end part of a motor shaft of the servo motor and is fixed above the second stop gate to drive the second stop gate to rotate, a first stop strip with a semicircular cross section is fixed on one surface of the first stop gate, a second stop strip is fixedly installed on one surface of the second stop gate, an arc-shaped surface matched with the surface of the first stop strip is arranged on the second stop strip, two fixing plates are fixed on the second stop gate, and two threaded columns are fixed on the second stop gate, two notches for the threaded columns to penetrate are formed in the two fixing plates, and fastening sleeves are respectively in threaded connection with the outer portions of the threaded columns.

By adopting the technical scheme, the servo motor positioned in the placing groove can be started when the valve is closed, the servo motor can drive the second stop gate to rotate to close the valve frame, the first stop gate is connected in the sliding groove in a sliding mode under the elastic force action of the spring, so that the first stop gate has an outward extending trend, and the valve frame can be well sealed by utilizing the close fit of the arc-shaped surfaces of the first stop bar and the second stop bar; when the valve is opened again, the servo motor can drive the second stop gate to rotate, and the spring can be driven to compress at the moment to drive the first stop gate to slide in the sliding groove, so that the valve is opened and closed without a complex linkage mechanism, and the valve is simple and good in sealing.

Preferably, the top of the valve frame is fixed with a baffle plate through a plurality of locking bolts.

Through adopting above-mentioned technical scheme, the baffle through locking bolt fastening can protect the servo motor in the standing groove.

Preferably, an inserting plate which can be inserted into the placing groove is fixed on the baffle plate.

Through adopting above-mentioned technical scheme, utilize the picture peg on the baffle can be to the installation location of baffle to increase its installation firm nature.

Preferably, an outer extending pipe is fixed on the valve frame, a connecting disc is fixed at the end part of the outer extending pipe, and a plurality of threaded holes are formed in the connecting disc.

By adopting the technical scheme, the valve can be conveniently installed on the air-conditioning pipeline by utilizing the outer extension pipe and the connecting disc on the outer extension pipe.

Preferably, a plurality of guide rods are fixed at the bottom of the sliding groove, and a plurality of guide holes for the guide rods to slide are formed in the first shutter.

Through adopting above-mentioned technical scheme, utilize the cooperation of guide bar and guiding hole to lead for the slip of first shutter in the sliding tray, improve its stability.

Preferably, a first fireproof soft barrier strip is fixed on one side of the second door close to the rotating shaft of the second door.

Through adopting above-mentioned technical scheme, the soft blend stop of first fire prevention can further increase the sealing performance of second shutter to the valve frame.

Preferably, a second fireproof soft barrier strip is fixed on the second barrier strip.

Through adopting above-mentioned technical scheme, the soft blend stop of second fire prevention can increase the sealed effect between second blend stop and the first blend stop.

Preferably, two rotary lugs are fixed on the fastening sleeve.

Through adopting above-mentioned technical scheme, the rotatory ear on the adapter sleeve can make things convenient for the operator to twist and move the adapter sleeve.

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

when the valve is closed, the servo motor in the placing groove can be started, the servo motor can drive the second stop gate to rotate to close the valve frame, the first stop gate is connected in the sliding groove in a sliding mode under the elastic force action of the spring, so that the valve has an outward extending trend, and the valve frame can be well sealed by utilizing the close fit of the arc-shaped surfaces of the first stop bar and the second stop bar; when the valve is opened again, the servo motor can drive the second stop gate to rotate, and the spring can be driven to compress at the moment to drive the first stop gate to slide in the sliding groove, so that the valve is opened and closed without a complex linkage mechanism, and the valve is simple and good in sealing.

Drawings

FIG. 1 is a schematic diagram showing the construction of a smoke evacuation fire damper for a duct;

FIG. 2 is a sectional view showing the structure of the smoke evacuation fire damper for a duct;

FIG. 3 is a second sectional view showing the structure of the smoke damper;

fig. 4 is an enlarged view of a in fig. 3.

Reference numerals: 1. a valve frame; 2. a sliding groove; 3. a spring; 4. a first shutter; 5. a second shutter; 6. a placement groove; 7. a servo motor; 8. fixing the rod; 9. a first barrier strip; 10. a second barrier strip; 11. a fixing plate; 12. a threaded post; 13. a notch; 14. fastening sleeves; 15. locking the bolt; 16. a baffle plate; 17. inserting plates; 18. an outer extension tube; 19. a connecting disc; 20. a threaded hole; 21. a guide bar; 22. a guide hole; 23. a first fireproof soft barrier strip; 24. a second fireproof soft barrier strip; 25. the ear is rotated.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1

Referring to fig. 2, 3 and 4, a pipeline smoke-discharging fire-proof valve comprises a valve frame 1, wherein a sliding groove 2 is formed in one side of an opening in the valve frame 1, a first shutter 4 is connected to the sliding groove 2 through two springs 3, a second shutter 5 is rotatably connected to the other side of the opening in the valve frame 1, a placing groove 6 is formed in the valve frame 1, a servo motor 7 is fixed in the placing groove 6, a fixing rod 8 is fixed at the end part of a motor shaft of the servo motor 7, wherein the fixing rod 8 is fixed above the second shutter 5, and the servo motor 7 drives the second shutter 5 to rotate; when the valve needs to be closed, the servo motor 7 is started to drive the fixing rod 8 to rotate, and the second shutter 5 is driven to rotate, so that the valve is driven to rotate to the first shutter 4 to seal the valve.

Referring to fig. 2, 3 and 4, in order to improve the tightness after the valve is closed, a first stop strip 9 with a semicircular cross section is fixed on one surface of the first stop door 4 close to the second stop door 5, and a second stop strip 10 is fixed on one surface of the second stop door 5 close to the first stop door 4, wherein the second stop strip 10 is provided with an arc surface matched with the surface of the first stop strip 9; when the valve is closed, the servo motor 7 in the placing groove 6 can be started, the servo motor 7 can drive the second stop door 5 to rotate to close the valve frame 1, the first stop door 4 is connected in the sliding groove 2 in a sliding mode under the elastic force of the spring 3, so that the valve has an outward extending trend, and the valve frame 1 can be well sealed by utilizing the close fit of the arc surfaces of the first stop strip 9 and the second stop strip 10; when the valve is opened again, the servo motor 7 can drive the second stop door 5 to rotate, and at the moment, the spring 3 can be driven to compress to drive the first stop door 4 to slide in the sliding groove 2 to complete the opening of the valve, so that the valve does not need a complex linkage mechanism for opening and closing, and is simple and good in sealing.

Referring to fig. 1 and 4, in order to fix the second stop strip 10 on the second stop gate 5, two fixing plates 11 are fixed on the second stop strip 10, two threaded columns 12 are fixed on the second stop gate 5, two notches 13 for the threaded columns 12 to pass through are formed in the two fixing plates 11, the outer portions of the two threaded columns 12 are respectively in threaded connection with fastening sleeves 14, and the second stop strip 10 can be fixedly installed when the fastening sleeves 14 on the outer portions of the threaded columns 12 are screwed.

Referring to fig. 2, in which a baffle 16 is fixed to the top of the valve frame 1 by four locking bolts 15, the baffle 16 fixed by the locking bolts 15 can protect the servo motor 7 in the placement groove 6; wherein, an inserting plate 17 which can be inserted into the placing groove 6 is fixed on the baffle plate 16, the baffle plate 16 can be installed and positioned by the inserting plate 17 on the baffle plate 16, and the installation firmness is increased.

Referring to fig. 3, an external extension tube 18 is fixed on the valve frame 1, a connection plate 19 is fixed on the end of the external extension tube 18, wherein four threaded holes 20 are opened on the connection plate 19, and the valve can be conveniently installed on the air-conditioning pipeline by using the external extension tube 18 and the connection plate 19 thereon.

Referring to fig. 3 and 4, in order to make the first shutter 4 slide more stably, two guide rods 21 are fixed at the bottom of the sliding groove 2, two guide holes 22 for the guide rods 21 to slide are formed in the first shutter 4, and the first shutter 4 can be guided to slide in the sliding groove 2 by the cooperation of the guide rods 21 and the guide holes 22, so that the stability of the first shutter is improved.

Referring to fig. 3 and 4, in order to further prevent smoke and fire from spreading, a first fireproof soft barrier strip 23 is fixed on the second barrier 5 at a side close to the rotating shaft of the second barrier, and the first fireproof soft barrier strip 23 can further increase the sealing performance of the second barrier 5 on the valve frame 1; and meanwhile, a second fireproof soft barrier strip 24 is fixed on the second barrier strip 10, and the second fireproof soft barrier strip 24 can increase the sealing effect between the second barrier strip 10 and the first barrier strip 9.

Referring to fig. 3 and 4, two rotation lugs 25 are fixed on the fastening sleeve 14 for facilitating the operator to screw the fastening sleeve 14, and the rotation lugs 25 on the fastening sleeve 14 can facilitate the operator to screw the fastening sleeve 14.

The servo motor 7 may be a direct current servo motor.

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 invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a pipeline smoke exhaust fire prevention valve, includes valve frame (1), its characterized in that: a sliding groove (2) is formed in one side of an opening in the valve frame (1), a first stop door (4) is connected in the sliding groove (2) through a plurality of springs (3), a second stop door (5) is rotatably connected to the other side of the opening in the valve frame (1), a placing groove (6) is formed in the valve frame (1), a servo motor (7) is fixed in the placing groove (6), a fixing rod (8) is fixed at the end part of a motor shaft of the servo motor (7), the fixing rod (8) is fixed above the second stop door (5) and drives the second stop door (5) to rotate, a first stop strip (9) with a semicircular cross section is fixed on one side of the first stop door (4) close to the second stop door (5), and a second stop strip (10) is fixedly installed on one side of the second stop door (5) close to the first stop door (4), have on second blend stop (10) with the arcwall face of mutually supporting in first blend stop (9) surface, be fixed with two fixed plates (11) on second blend stop (10), be fixed with two screw thread posts (12) on second shutter (5), two seted up two confession on fixed plate (11) notch (13) that screw thread post (12) passed, two the outside difference threaded connection of screw thread post (12) has adapter sleeve (14).

2. The pipe smoke evacuation fire damper of claim 1, wherein: the top of the valve frame (1) is fixed with a baffle (16) through a plurality of locking bolts (15).

3. The pipe smoke evacuation fire damper of claim 2, wherein: an inserting plate (17) which can be inserted into the placing groove (6) is fixed on the baffle plate (16).

4. The pipe smoke evacuation fire damper of claim 1, wherein: an outer extension pipe (18) is fixed on the valve frame (1), a connecting disc (19) is fixed at the end part of the outer extension pipe (18), and a plurality of threaded holes (20) are formed in the connecting disc (19).

5. The pipe smoke evacuation fire damper of claim 1, wherein: the tank bottom of sliding tray (2) is fixed with a plurality of guide bar (21), it supplies to have seted up a plurality of in first shutter (4) the gliding guiding hole (22) of guide bar (21).

6. The pipe smoke evacuation fire damper of claim 1, wherein: and a first fireproof soft barrier strip (23) is fixed on one side of the second barrier door (5) close to the rotating shaft of the second barrier door.

7. The pipe smoke evacuation fire damper of claim 1, wherein: and a second fireproof soft barrier strip (24) is fixed on the second barrier strip (10).

8. The pipe smoke evacuation fire damper of claim 1, wherein: two rotary ears (25) are fixed on the fastening sleeve (14).