CN211820772U

CN211820772U - Fire-proof valve

Info

Publication number: CN211820772U
Application number: CN202020017735.6U
Authority: CN
Inventors: 孙金柱; 孙金才; 曲军; 孙朝元; 张希营; 潘继旺; 孙蓬元
Original assignee: Shandong County Shunda Air Conditioning Equipment Co ltd
Current assignee: Shunda air conditioning equipment Group Co.,Ltd.
Priority date: 2020-01-06
Filing date: 2020-01-06
Publication date: 2020-10-30
Anticipated expiration: 2030-01-06

Abstract

A fire damper relates to the technical field of air conditioning equipment and comprises an outer frame body, blades and an execution unit, wherein the blades are positioned inside the outer frame body, the execution unit is positioned outside the outer frame body, the execution unit is in transmission connection with the blades, the fire damper further comprises a protection unit, and the protection unit is covered outside the execution unit; the protection unit comprises a base, a sleeve and a cover body, the base is fixedly connected with the outer frame body, one end of the sleeve is connected with the base in a sealing mode, and the other end of the sleeve is connected with the cover body in a sealing mode. This fire prevention valve puts into protective unit with execution unit in, can avoid meeting water infiltration, plays the fire prevention effect to execution unit.

Description

Fire-proof valve

Technical Field

The utility model relates to an air conditioning equipment technical field, concretely relates to fire prevention valve.

Background

The fire damper is a valve type which is closed by the temperature control of the fusible alloy, utilizing the action of gravity and the action of a spring mechanism. The prior art discloses a square-round fire damper, which comprises a rectangular valve body, a valve blade arranged in the rectangular valve body and a valve blade execution unit arranged on the outer side of the rectangular valve body, wherein a handle is arranged on the execution unit; when the fire damper is installed on an air-conditioning pipeline, the turnover angle of the valve blade can be manually adjusted through the handle; or the execution unit automatically controls the turning angle of the valve blade according to the temperature signal in the air-conditioning pipeline to open and close the air-conditioning pipeline, thereby realizing the opening and closing work of the pipeline.

When above-mentioned fire prevention valve is installed on air conditioner pipeline, its execution unit and handle expose outside air conditioner pipeline, and air conditioner pipeline is generally open-air setting, and when rainy, the rainwater can drip on execution unit, along execution unit's gap infiltration, and its rainwater probably leads to execution unit short circuit or inside to rust, influences fire prevention valve's normal work.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to prior art's not enough, provide a fire prevention valve, this fire prevention valve puts into the protective unit with the execution unit, can avoid meeting water infiltration, plays the fire prevention effect to the execution unit.

The utility model discloses a fire damper, including outer frame body, blade and execution unit, the blade is located the inside of outer frame body, execution unit is located the outside of outer frame body, execution unit with the blade transmission is connected, fire damper still includes the protection unit, the protection unit cover is established in the outside of execution unit; the protection unit comprises a base, a sleeve and a cover body, the base is fixedly connected with the outer frame body, one end of the sleeve is connected with the base in a sealing mode, and the other end of the sleeve is connected with the cover body in a sealing mode.

Preferably, a heat insulation layer is arranged between the protection unit and the outer frame body.

Preferably, one side of the base facing the outer frame body is provided with an accommodating space for accommodating the heat insulation layer, and the base is detachably connected with the outer frame body.

Preferably, the sleeve has a first port and a second port which are arranged oppositely, an annular accommodating groove is formed in the end face of the first port, an annular accommodating groove is also formed in the end face of the second port, and a sealing gasket is arranged at the accommodating groove.

Preferably, the sealing gasket has a filling portion, a first end surface of the filling portion is provided with a first extending portion extending to one side and a second extending portion extending to the other side, the filling portion is located in the accommodating groove, and the first extending portion and the second extending portion are attached to the end surface of the first port or the second port.

Preferably, a first protrusion portion is disposed in a middle portion of the first end surface, and a groove portion is disposed on a second end surface opposite to the first end surface.

Preferably, the side end faces of the first extension part and the second extension part far away from the filling part are provided with a plurality of second protrusion parts.

Preferably, the number of the second protrusions is four, two second protrusions are provided on one side of the first protrusion, and two second protrusions are provided on the other side of the first protrusion.

Preferably, the base is connected with the cover body through a tensioning bolt, one end of the tensioning bolt is hinged with the base, and the other end of the tensioning bolt is connected with the cover body through a hand-tightening nut.

Preferably, the cover body is provided with a fastening groove for accommodating the tightening bolt, and one end of the fastening groove is open and is used for screwing in the tightening bolt.

The utility model relates to a fire prevention valve of embodiment has following beneficial effect at least:

the protection unit cover of this fire prevention valve is established the outside of execution unit plays waterproof effect to execution unit. In the protection unit, the sealing connection structures between the sleeve and the base and between the sleeve and the cover body have better sealing effect. In addition, the protective unit and the heat insulating layer arranged between the outer frame bodies can prevent high-temperature smoke passing through the fireproof valve from damaging the execution unit.

Drawings

Fig. 1 is a front view of a fire damper according to an embodiment of the present invention.

Fig. 2 is a sectional view of a fire damper according to an embodiment of the present invention.

Fig. 3 is a partial enlarged view B in fig. 1.

Fig. 4 is a partial enlarged view C of fig. 3.

Fig. 5 is a schematic structural diagram of a gasket according to an embodiment of the present invention.

Fig. 6 is a schematic structural view of a sleeve according to an embodiment of the present invention.

Description of the reference numerals

10-outer frame body, 20-blade, 30-execution unit, 40-protection unit, 41-base, 410-containing space, 411-first buckling part, 42-sleeve, 421-cavity, 422-containing groove, 423-threading hole, 43-cover body, 431-second buckling part, 432-fastening groove, 44-heat insulation layer, 46-tensioning bolt, 47-hand nut, 48-sealing gasket, 481-filling part, 482-first extending part, 483-second extending part, 484-first protruding part, 485-second protruding part and 486-groove part.

Detailed Description

Other objects and advantages of the present invention will become apparent from the following explanation of the preferred embodiments of the present application.

As shown in fig. 1 to 6, the fire damper includes an outer frame 10, a blade 20, and an actuating unit 30, wherein the blade 20 is located inside the outer frame 10, the actuating unit 30 is located outside the outer frame 10, and the actuating unit 30 is in transmission connection with the blade 20. The prior art fire damper is generally exposed to the outside, and the execution unit 30 thereof has a possibility of permeating water.

In order to avoid rainwater infiltration, the utility model discloses a fire prevention valve still includes protection unit 40, and protection unit 40 covers the outside of establishing at execution unit 30, plays waterproof effect to execution unit 30.

Specifically, the protection unit 40 includes a base 41, a sleeve 42, and a cover 43, the base 41 is fixedly connected to the outer frame 10, one end of the sleeve 42 is hermetically connected to the base 41, and the other end is hermetically connected to the cover 43. A cavity 421 in the sleeve 42 is used to accommodate the actuator unit 30. The threading holes 423 of the lower side of the sleeve 42 are used for passing the cables of the actuating unit 30, and a sealing member of a rubber material may be generally provided between the threading holes 423 and the cables to prevent rainwater from infiltrating from the gaps.

In some embodiments, the sleeve 42 has a first port and a second port disposed opposite to each other, the end surface of the first port is provided with an annular receiving groove 422, the end surface of the second port is also provided with an annular receiving groove 422, and the receiving groove 422 is provided with the sealing gasket 48. In some embodiments, the sealing gasket 48 has a filling part 481, and a first end surface of the filling part 481 is provided with a first extension 482 extending to one side and a second extension 483 extending to the other side. The filling part 481 is located in the receiving groove 422, and the first and second extending

parts

482 and 483 are fitted to end surfaces of the first or second port.

Taking the connection between the base 41 and the sleeve 42 as an example, a first concave engaging portion 411 is disposed on a side of the base 41 away from the outer frame 10, and a first end surface of the sleeve 42 is connected to a bottom surface of the first engaging portion 411. In this embodiment, the filling portion 481 of the sealing gasket 48 is disposed in the receiving groove 422, and the first extending portion 482 and the second extending portion 483 of the sealing gasket 48 are located between the bottom surface of the first engaging portion 411 and the first end surface of the sleeve 42. This structure of the gasket 48 forms triple sealing at least at the first extension 482, the second extension 483, and the filling part 481, improving the sealing effect.

Preferably, a middle portion of the first end surface is provided with a first protrusion portion 484, and a second end surface opposite to the first end surface is provided with a groove portion 486. When the base 41 is connected to the sleeve 42, the bottom surface of the first engaging portion 411 presses the first projecting portion 484, the material in the first projecting portion 484 is pressed toward the filling portion 481, and the groove portions 486 are further pressed, so that the air in the groove portions 486 is pushed out to form a vacuum region, thereby further improving the sealing effect.

In some embodiments, the side end faces of the first and

second extensions

482 and 483 away from the filling section 481 are provided with a plurality of second protrusions 485. Preferably, the number of the second protrusions 485 is four, two second protrusions 485 are provided on one side of the first protrusion 484, and two second protrusions 485 are provided on the other side of the first protrusion 484. By providing the second protruding portion 485, the sealing effect between the first engaging portion 411 or the second engaging portion 431 and the end surface of the sleeve 42 is further improved.

In some embodiments, the base 41 and the cover 43 are connected by a tie bolt 46, and one end of the tie bolt 46 is hinged to the base 41 and the other end is connected to the cover 43 by a hand nut 47. Further, the cover 43 is provided with a fastening groove 432 for receiving the tightening bolt 46, and one end of the fastening groove 432 is opened for screwing the tightening bolt 46. The tightening bolt 46 can be tightened or loosened by rotating the hand nut 47, facilitating the installation and removal of the shielding unit 40.

In addition, in order to prevent the high-temperature flue gas passing through the fire damper from damaging the execution unit 30, a heat insulation layer 44 is provided between the protection unit 40 and the outer frame 10. An accommodating space 410 for accommodating the heat insulating layer 44 is provided on a side of the base 41 facing the outer frame 10, and the base 41 is detachably connected to the outer frame 10. When assembling the fire damper, the heat insulating layer 44 is first placed in the accommodating space 410, and then the base 41 is attached to the outer frame 10. The heat insulating layer 44 may be made of asbestos. Through the arrangement of the accommodating space 410 and the heat insulation layer 44, the influence of high-temperature smoke passing through the fire damper on the execution unit 30 is reduced.

The apparatus of the present application has been described in detail with reference to the preferred embodiments thereof, however, it should be noted that those skilled in the art can make modifications, alterations and adaptations based on the above disclosure without departing from the spirit of the present application. The present application includes the specific embodiments described above and any equivalents thereof.

Claims

1. A fire damper comprises an outer frame body, blades and an execution unit, wherein the blades are positioned inside the outer frame body, the execution unit is positioned outside the outer frame body, and the execution unit is in transmission connection with the blades; the protection unit comprises a base, a sleeve and a cover body, the base is fixedly connected with the outer frame body, one end of the sleeve is connected with the base in a sealing mode, and the other end of the sleeve is connected with the cover body in a sealing mode.

2. The fire damper of claim 1, wherein a thermal insulation layer is disposed between the protective unit and the outer frame.

3. The fire damper of claim 2, wherein a side of the base facing the outer frame is provided with a receiving space for receiving the thermal insulation layer, and the base is detachably connected to the outer frame.

4. The fire damper of claim 1, wherein the sleeve has a first port and a second port disposed opposite to each other, wherein an end surface of the first port is provided with an annular receiving groove, and an end surface of the second port is also provided with an annular receiving groove, and wherein a sealing gasket is disposed at the receiving groove.

5. The fire damper according to claim 4, wherein the packing has a packing portion, a first end surface of the packing portion is provided with a first extending portion extending to one side and a second extending portion extending to the other side, the packing portion is located in the receiving groove, and the first extending portion and the second extending portion are attached to an end surface of the first port or the second port.

6. The fire damper of claim 5, wherein a middle portion of the first end surface is provided with a first protrusion portion, and a second end surface opposite to the first end surface is provided with a groove portion.

7. The fire damper of claim 6, wherein side end faces of the first extension and the second extension away from the filling portion are provided with a plurality of second protrusions.

8. The fire damper of claim 7, wherein the number of the second protrusions is four, two of the second protrusions are provided on one side of the first protrusion, and two of the second protrusions are provided on the other side of the first protrusion.

9. The fire damper according to any one of claims 1 to 8, wherein the base and the cover are connected by a tension bolt, one end of the tension bolt is hinged to the base, and the other end of the tension bolt is connected to the cover by a hand nut.

10. The fire damper of claim 9, wherein the cover has a fastening groove for receiving the tension bolt, and one end of the fastening groove is open for screwing the tension bolt.