CN217301788U

CN217301788U - Fire-proof smoke-proof valve

Info

Publication number: CN217301788U
Application number: CN202220541962.8U
Authority: CN
Inventors: 柴佳; 蔡晨
Original assignee: Hubei Province Bao Shuo Technology Co ltd
Current assignee: Hubei Province Bao Shuo Technology Co ltd
Priority date: 2022-03-11
Filing date: 2022-03-11
Publication date: 2022-08-26
Anticipated expiration: 2032-03-11

Abstract

The utility model provides a fire prevention smoke damper belongs to ventilation system technical field. Including the tuber pipe of rectangle, the one end of tuber pipe is provided with the tripe formula valve, the other end of tuber pipe is provided with a sliding valve, sliding valve includes the extension shell of two symmetric distributions in the tuber pipe outside, the extension shell is fixed on the tuber pipe, it has a sliding chamber in the extension shell, sliding chamber sliding connection has a valve plate, it is connected with the pivot parallel with the valve plate to rotate on the extension shell, at least a rack has on the valve plate, fixed being provided with in the pivot with rack toothing's gear, the one end of pivot is provided with the rocking arm of stretching out outside the extension shell. The utility model has the advantages of the reliability is high.

Description

Fire-proof smoke-proof valve

Technical Field

The utility model belongs to the technical field of ventilation system, a fire prevention smoke damper is related to.

Background

Ventilation systems are arranged in large-scale closed factories, hotels, office buildings, shopping malls and the like, and the ventilation systems are mainly used for air replacement, refrigeration or heating, so that the comfort and the safety of public places or places with dense people flows can be kept. Based on the fire control requirement, generally need possess the fire prevention smoke protection function in the tip position of being in charge of, the shutter plate that metal material is mostly adopted to current fire prevention smoke protection blast gate, realizes the switch through the synchronous push rod of electric control, however, when the conflagration takes place, the probability of electron device ageing is not little, makes its reliability relatively poor, has the potential safety hazard.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a fire prevention smoke damper to the above-mentioned problem that prior art exists, the utility model aims to solve the technical problem how to improve the reliability.

The purpose of the utility model can be realized by the following technical proposal: the utility model provides a fire prevention smoke protection valve, its characterized in that, includes the tuber pipe of rectangle, the one end of tuber pipe is provided with shutter type valve, the other end of tuber pipe is provided with a sliding valve, sliding valve includes the extension shell of two symmetric distributions in the tuber pipe outside, the extension shell is fixed on the tuber pipe, a sliding chamber has in the extension shell, sliding chamber sliding connection has a valve plate, rotate on the extension shell and be connected with the pivot parallel with the valve plate, at least a rack has on the valve plate, fixed being provided with in the pivot with rack toothing's gear, the one end of pivot is provided with the rocking arm of stretching out outside the extension shell.

Furthermore, the middle part of the air pipe is provided with a barrier strip, and the two sides of the barrier strip are respectively provided with a slot matched with the inner ends of the two valve plates.

Furthermore, the inner wall surfaces of the two air pipes vertical to the barrier strips are provided with guide sealing strips matched with the valve plate.

The shutter type valve is the traditional fire-proof smoke-proof valve, swing through each shutter of electric control, in order to realize opening or closing of tuber pipe, when the conflagration breaing out, this valve can close the tuber pipe under the normal condition of electron device work, when electron device trouble, can make the sliding type valve as reserve, the control pivot is rotatory, can make two valve plates inwards move and close the tuber pipe, meanwhile, shutter type valve and sliding type valve can use simultaneously, in order to improve the leakproofness and the reliability of fire prevention smoke-proof.

The expansion shell is used for being embedded into a wall body or a semi-embedded cavity body, the overall connection strength and reliability are improved, and the louver type valve located on the inner side of the expansion shell has a certain protection effect. The sliding valve is positioned at the exposed position, so that the manual control is convenient when a disaster occurs, and the overall reliability and the actual effect of the fireproof smoke-proof valve can be improved.

Drawings

Fig. 1 is a schematic perspective view of the fire and smoke prevention valve.

FIG. 2 is an interface view of the air duct at the position of the expansion shell.

In the figure, 1, an air duct; 2. a louvered valve; 3. an expansion shell; 4. a slide chamber; 5. a valve plate; 6. a rotating shaft; 7. a rack; 8. a gear; 9. a rocker arm; 10. blocking strips; 11. and guiding the sealing strip.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1 and 2, including rectangular tuber pipe 1, the one end of tuber pipe 1 is provided with shutter valve 2, the other end of tuber pipe 1 is provided with a sliding valve, sliding valve includes two symmetric distributions at the extension shell 3 in the tuber pipe 1 outside, extension shell 3 is fixed on tuber pipe 1, a sliding cavity 4 has in the extension shell 3, sliding cavity 4 sliding connection has a valve plate 5, it is connected with the pivot 6 parallel with valve plate 5 to rotate on the extension shell 3, at least one rack 7 has on the valve plate 5, the fixed gear 8 that is provided with and rack 7 meshing on the pivot 6, the one end of pivot 6 is provided with stretches out the rocking arm 9 outside extension shell 3.

The middle part of the air pipe 1 is provided with a barrier strip 10, the two sides of the barrier strip 10 are respectively provided with a slot matched with the inner ends of the two valve plates 5, and the inner wall surfaces of the two air pipes 1 vertical to the barrier strip 10 are provided with guide sealing strips 11 matched with the valve plates 5.

Tripe formula valve 2 is traditional fire prevention smoke protection valve promptly, swing through each tripe of electric control, in order to realize opening or closing of tuber pipe 1, when the conflagration breaing out, this valve can close tuber pipe 1 under the normal condition of electron device work, when electron device trouble, can make the sliding valve as reserve, control pivot 6 is rotatory, can make two blocks of valve plates 5 inwards remove and close tuber pipe 1, meanwhile, tripe formula valve 2 and sliding valve can use simultaneously, in order to improve the leakproofness and the reliability of fire prevention smoke protection.

The expansion shell 3 is used for being embedded into a wall body or a semi-embedded cavity body, the overall connection strength and reliability are improved, and the louver type valve 2 located on the inner side of the expansion shell has a certain protection effect. The sliding valve is positioned at the exposed position, so that the manual control is convenient when a disaster occurs, and the overall reliability and the actual effect of the fireproof smoke-proof valve can be improved.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. A fire-proof and smoke-proof valve is characterized by comprising a rectangular air pipe (1), one end of the air pipe (1) is provided with a shutter valve (2), the other end of the air pipe (1) is provided with a sliding valve which comprises two expansion shells (3) which are symmetrically distributed at the outer side of the air pipe (1), the expansion shell (3) is fixed on the air pipe (1), a sliding cavity (4) is arranged in the expansion shell (3), a valve plate (5) is connected in the sliding cavity (4) in a sliding way, a rotating shaft (6) parallel to the valve plate (5) is rotatably connected on the expansion shell (3), the valve plate (5) is provided with at least one rack (7), the rotating shaft (6) is fixedly provided with a gear (8) meshed with the rack (7), one end of the rotating shaft (6) is provided with a rocker arm (9) extending out of the extension shell (3).

2. A fire and smoke prevention valve according to claim 1, wherein the middle of the air pipe (1) is provided with a barrier strip (10), and two sides of the barrier strip (10) are respectively provided with a slot matched with the inner ends of the two valve plates (5).

3. A fire and smoke prevention valve according to claim 2, wherein the inner wall surfaces of the two air ducts (1) perpendicular to the barrier strips (10) are provided with guide sealing strips (11) adapted to the valve plate (5).