CN218598887U

CN218598887U - Improved fireproof check valve

Info

Publication number: CN218598887U
Application number: CN202223228482.5U
Authority: CN
Inventors: 请求不公布姓名
Original assignee: Xi'an Lanqiao Ventilation Equipment Co ltd
Current assignee: Xi'an Lanqiao Ventilation Equipment Co ltd
Priority date: 2022-10-13
Filing date: 2022-12-03
Publication date: 2023-03-10
Anticipated expiration: 2032-12-03

Abstract

The utility model relates to an exhaust valve technical field especially relates to a modified fire prevention check valve, including the check valve main part, the valve, the connecting piece, the mounting bracket assembly is on the inboard of check valve main part, the one end of connecting piece is connected on the valve, the other end of connecting piece articulates on the mounting bracket through first articulated elements, still include the stop block, the stop block articulates on the mounting bracket through the second articulated elements, the connecting piece is provided with block portion with the corresponding department of stop block, the stop block is close to connecting piece department with the temperature-sensing element setting at the rear side of valve, compare current fire prevention check valve, shorten the stop block, distance between the connecting piece on temperature-sensing element and the valve, make when taking place the condition of a fire, temperature-sensing element contact high temperature melts the back, rapid bounce of stop block and with block portion block, in time prevent the condition of a fire in the public flue from spreading to home, connection structure is comparatively simple, after the temperature-sensing element melts, be convenient for install the temperature-sensing element once more, make the check valve can have the fire prevention function once more.

Description

Improved fireproof check valve

Technical Field

The utility model relates to an exhaust valve technical field especially relates to a modified fire prevention check valve.

Background

The fire-proof flue check valve is a valve which is installed on a public flue and used for preventing oil smoke from tainting odor, has the functions of fire prevention and preventing smoke from flowing backwards and guiding air upwards out, when a fire disaster occurs in a building and the fire condition extends to the common flue, the check valve can be automatically closed to timely prevent the fire condition from spreading to home, a stop block and a temperature sensing element in the conventional fire-proof check valve are usually arranged on a flow guide wall of a check valve main body, so that the distance between the stop block and a connecting piece of the valve is far, and the stop block is difficult to quickly support the connecting piece after the temperature sensing element is melted when the fire condition occurs, so that the fire condition spreads to home, and the potential safety hazard is formed.

Disclosure of Invention

The utility model aims at providing a solve in the background art an improved fire prevention check valve of at least one technical problem design.

In order to achieve the above purpose, the utility model adopts the following scheme: the utility model provides an improved fire prevention check valve, includes check valve main part, valve, connecting piece, mounting bracket, the mounting bracket assembly is in on the inboard of check valve main part, the one end of connecting piece is connected on the valve, the other end of connecting piece articulates through first articulated elements on the mounting bracket, still includes the stop block, the stop block articulates through the second articulated elements on the mounting bracket, the connecting piece with the corresponding department of stop block is provided with block portion.

One end of the temperature sensing element is abutted against the stop block, and the other end of the temperature sensing element is connected to the check valve main body.

The second hinge piece is hinged to a first torsion spring, a side torsion arm of the first torsion spring is assembled on the mounting frame, and a middle torsion arm of the first torsion spring is arranged below the stop block.

One end of the temperature sensing element comprises a longitudinal part which is used for being connected with the check valve main body, a hollow part is arranged on the check valve main body, and the longitudinal part is arranged in the hollow part.

Wherein, the outside of check valve main part is equipped with the stopper, the stopper is located the place ahead of vertical portion.

And a clamping space matched with the stop block is formed between the clamping part and the connecting piece.

The limiting block is provided with a through hole corresponding to the temperature sensing element, and the height of the through hole is smaller than that of the hollow part.

Wherein, the mounting bracket is located the rear side of connecting piece is provided with third hinge joint spare, it has the second torsional spring to articulate on the third hinge joint spare, the side torque arm of second torsional spring support press in the bottom of mounting bracket, the centre torque arm cover of second torsional spring is established on the connecting piece.

The connecting piece is provided with a protruding part protruding from the rear side surface of the connecting piece to the direction of the stop block, and the clamping part is positioned on the protruding part.

Wherein, the rear side of mounting bracket is the slope setting, the stop block assembly is in on the rear side of mounting bracket.

The utility model has the advantages of the stopper is close to connecting piece department with the temperature-sensing element setting at the rear side of valve, compare current fire prevention check valve, shorten the stopper, the distance between the connecting piece on temperature-sensing element and the valve, when taking place the condition of a fire, temperature-sensing element contact high temperature melts the back, the stopper can be rapid bounce and with block portion block, in time prevent the condition of a fire in the public flue to spread to the family in, and temperature-sensing element one end directly inlays and establishes in the check valve main part, the other end supports presses on the stopper, connection structure is comparatively simple, after the temperature-sensing element melts, be convenient for install the temperature-sensing element once more, make the check valve can have the fire prevention function once more.

Drawings

FIG. 1 is a first perspective view of an improved fire check valve;

FIG. 2 is a second perspective view of an improved fire check valve;

FIG. 3 is a partial perspective view of a first improved fire check valve;

FIG. 4 is a second schematic perspective view of a portion of an improved fire check valve;

FIG. 5 is a schematic side view of a portion of an improved fire check valve;

FIG. 6 is a schematic front view of a temperature sensing element;

FIG. 7 is a third schematic perspective view of a portion of an improved fire check valve;

FIG. 8 is a fourth schematic perspective view of a portion of an improved fire check valve;

FIG. 9 is a third schematic perspective view of an improved fire check valve;

FIG. 10 is a fourth schematic perspective view of an improved fire check valve;

the parts in the drawings are numbered as follows:

1-a check valve body; 11-a valve; 12-a connector; 13-a mounting frame; 14-an engaging portion; 15-a first torsion spring; 16-a limiting block; 17-a through hole; 18-a second torsion spring; 19-a hollowed-out portion; 101-a projection; 102-a limit torsion spring; 2-a stopper; 3-a temperature-sensing element; 31-a transverse portion; 32-a longitudinal portion; 33-a first temperature-sensing tablet; 34-second temperature-sensing tablet.

Detailed Description

This section will describe in detail the specific embodiments of the present invention, the preferred embodiments of which are shown in the attached drawings, which function is to supplement the description of the text part of the description with figures, so that each technical feature and the whole technical solution of the present invention can be understood visually and vividly, but it cannot be understood as a limitation to the scope of the present invention.

In the description of the present invention, if an orientation description is referred to, for example, the directions or positional relationships indicated by "upper", "lower", "front", "rear", "left", "right", etc. are based on the directions or positional relationships shown in the drawings, it is only for convenience of description of the present invention and simplification of description, but not to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. When a feature is referred to as being "disposed," "secured," or "connected" to another feature, it can be directly disposed, secured, or connected to the other feature or be indirectly disposed, secured, or connected to the other feature.

In the description of the present invention, if "a plurality" is referred to, it means one or more, if "a plurality" is referred to, it means two or more, if "more than", "less than" or "more than" is referred to, it is understood that the number is not included, and if "more than", "less than" or "within" is referred to, it is understood that the number is included. If reference is made to "first" or "second", this should be understood to distinguish between features and not to indicate or imply relative importance or to implicitly indicate the number of indicated features or to implicitly indicate the precedence of the indicated features.

In addition, unless defined otherwise, technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. It will be understood that the terms "comprises" and/or "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.

The embodiment is as follows: as shown in fig. 1 to 10, an improved fire-proof check valve comprises a check valve main body 1, a valve 11, a connecting piece 12, an installation frame 13, wherein the installation frame 13 is assembled on the inner side of the check valve main body 1, one end of the connecting piece 12 is connected to the valve 11, the other end of the connecting piece 12 is hinged to the installation frame 13 through a first hinge, the improved fire-proof check valve further comprises a stop block 2, the stop block 2 is hinged to the installation frame 13 through a second hinge, a clamping portion 14 is arranged at a position, corresponding to the stop block 2, of the connecting piece 12, when smoke blows to the check valve, the valve is opened under the action of smoke pressure, and after the smoke is exhausted, the valve is automatically closed, so that the smoke in a public flue can be prevented from flowing back into a room and affecting a home environment, and when a fire occurs, the stop block is pressed on the clamping portion, so that the valve is in a normally closed state, and the fire can be prevented from spreading to a home.

Wherein, the check valve main body 1 includes a mounting frame, a guide part, the guide part is assembled on the mounting frame, the mounting frame 13 and the valve 11 are assembled on the mounting frame.

Wherein, the both sides of water conservancy diversion portion are equipped with spacing torsional spring 102, the side torque arm of spacing torsional spring 102 is fixed between water conservancy diversion portion and the installation frame, the middle torque arm butt of spacing torsional spring 102 is in on the both sides of installation frame, when the installation check valve, clamp the installation frame in the flue opening one side inwards, the middle torque arm butt of spacing torsional spring is in the flue opening one side outwards for the more firm installation on the flue opening of check valve.

Wherein, first articulated elements is first articulated shaft, be equipped with first hinge hole on the mounting bracket 13, be equipped with the second hinge hole on the connecting piece 12, first articulated shaft wears to establish respectively first hinge hole with on the second hinge hole for the rotatable assembly of valve makes things convenient for the valve to open and shut on the mounting bracket.

The second hinge element is a second hinge shaft, a third hinge hole is formed in the mounting frame, a fourth hinge hole is formed in the stop block 2, and the second hinge shaft is respectively arranged in the third hinge hole and the fourth hinge hole in a penetrating mode, so that the stop block can be rotatably assembled on the mounting frame, and the stop block can conveniently rotate upwards.

The check valve further comprises a temperature sensing element 3, one end of the temperature sensing element 3 is abutted against the stop block 2, the other end of the temperature sensing element 3 is connected to the check valve body 1, when a high-temperature fire occurs, the temperature sensing element is fused, the stop block which loses the abutment of the temperature sensing element is upwards rotated and abutted against the clamping part, so that the valve is in a normally closed state, and the temperature sensing element is abutted against the stop block, and once the high-temperature stop block is encountered, the valve can be quickly upwards rotated.

The second hinge member is hinged with a first torsion spring 15, side torsion arms of the first torsion spring 15 are assembled on the mounting frame 13, a middle torsion arm of the first torsion spring 15 is arranged below the stop block 2, after the temperature sensing element is fused, the temperature sensing element is disconnected from the stop block, the first torsion spring acts on the stop block with elasticity, and the stop block is automatically sprung upwards and matched with the clamping part, so that the valve is in a normally closed state.

One end of the temperature sensing element 3 comprises a longitudinal portion 32 used for being connected with the check valve main body, a hollow portion 19 is arranged on the check valve main body 1, the longitudinal portion 32 is arranged in the hollow portion 19, and the hollow portion is used for placing the longitudinal portion.

The temperature sensing element comprises a first temperature sensing piece 33 and a second temperature sensing piece 34, the first temperature sensing piece 33 comprises a longitudinal portion 32 and a transverse portion 31, the second temperature sensing piece 34 is Z-shaped, the transverse portion 31 of the first temperature sensing piece 34 is connected with one transverse edge of the second temperature sensing piece 34, the stop block 2 is abutted against the other transverse edge of the second temperature sensing piece 34, the first temperature sensing piece is welded on the second temperature sensing piece, when a fire disaster occurs and reaches a certain temperature, the connection between the first temperature sensing piece and the second temperature sensing piece melts and is disconnected, and the first torsion spring drives the stop block to bounce upwards and prop against the valve.

The outer side of the check valve main body 1 is provided with a limit block 16, the limit block 16 is located in front of the longitudinal portion 32, the limit block is used for fixing the temperature sensing element, and the limit block is detachably mounted on the check valve main body, so that the temperature sensing element is convenient to replace.

The front end face of the longitudinal portion 32 is attached to the rear end face of the limiting block 16, the rear end face of the longitudinal portion 32 is attached to the front end face of the mounting frame 13, the longitudinal portion is embedded in the hollow portion, the limiting blocks and the mounting frame are respectively arranged on two sides of the longitudinal portion to limit the position of the longitudinal portion, the temperature sensing element does not fall off, the mounting mode of the temperature sensing element is simple, and replacement of the temperature sensing element is facilitated.

A clamping space for matching with the stop block 2 is formed between the clamping part 14 and the connecting piece 12, so that the stop block is more stably pressed against the bottom of the clamping part, and the valve is in a normally closed state.

The engaging portion 14 protrudes from the rear sidewall of the connecting member 12 toward the direction of the stop block 2, and is configured to cooperate with the stop block.

The limiting block 16 is provided with a through hole 17 corresponding to the temperature sensing element 3, the height of the through hole 17 is smaller than that of the hollow part 19, the through hole is arranged so that the temperature sensing element arranged between the limiting block and the mounting rack can rapidly feel high temperature and can be fused, and meanwhile, the height of the through hole is smaller than that of the hollow part so that the temperature sensing element is not easily disconnected from the check valve body.

Wherein, mounting bracket 13 is located the rear side of connecting piece 12 is provided with the third hinge union piece, it has the second torsional spring to articulate on the third hinge union piece, the side torque arm of second torsional spring supports and presses the mounting bracket bottom, the centre torque arm cover of second torsional spring is established on the connecting piece, set up the second torsional spring and make the valve can open and shut automatically in daily use.

The connecting piece 12 is provided with a protruding part 101 protruding from the rear side of the connecting piece 12 towards the direction of the stop block 2, and the engaging part 14 is located on the protruding part 101, so that the stop block can be matched with the engaging part more quickly when being bounced, and the fire can be prevented from spreading to home quickly.

The convex part 101 is provided with arc surfaces at two sides of the engaging part 14, so that the stopper is more smoothly engaged with the engaging part when the stopper is sprung upward.

The rear side of the mounting frame 13 is arranged obliquely, the stopper 2 is assembled on the rear side of the mounting frame 13, the rear side of the mounting frame gradually inclines upwards, the distance between the stopper and the clamping part is further shortened, and once the temperature sensing element is fused, the stopper can be matched with the clamping part more quickly.

Wherein, the mounting frame 13 is provided with an avoiding part corresponding to the temperature sensing element 3, so that the transverse part of the temperature sensing element can be assembled on the mounting frame.

Wherein, the cover is equipped with the sealing washer on the outward flange of valve 11, the sealing washer is kept away from the one side of connecting piece with the installation frame is laminated mutually and is set up the leakproofness that the sealing washer can strengthen the check valve, reduces the flue gas and flows into indoorly from the flue backflow, influences the house environment.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of various equivalent modifications or replacements within the technical scope of the present invention, and these modifications or replacements should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. The utility model provides a modified fire prevention check valve, includes check valve main part, valve, connecting piece, mounting bracket, the mounting bracket assembly is in on the inboard of check valve main part, the one end of connecting piece is connected on the valve, the other end of connecting piece articulates through first articulated elements on the mounting bracket, its characterized in that: the connecting piece is hinged to the mounting frame through a first hinge piece, and the connecting piece is provided with a clamping part corresponding to the stop block.

2. An improved fire resistant check valve as defined in claim 1, wherein: the check valve further comprises a temperature sensing element, one end of the temperature sensing element is pressed against the stop block, and the other end of the temperature sensing element is connected to the check valve main body.

3. An improved fire check valve as defined in claim 1, wherein: the second hinge piece is hinged with a first torsion spring, a side torsion arm of the first torsion spring is assembled on the mounting frame, and a middle torsion arm of the first torsion spring is arranged below the stop block.

4. An improved fire check valve as defined in claim 2, wherein: one end of the temperature sensing element comprises a longitudinal part which is used for being connected with the check valve main body, a hollow part is arranged on the check valve main body, and the longitudinal part is arranged in the hollow part.

5. An improved fire check valve as defined in claim 4, wherein: the outer side of the check valve main body is provided with a limiting block which is positioned in front of the longitudinal part.

6. An improved fire check valve as defined in claim 1, wherein: and a clamping space used for being matched with the stop block is formed between the clamping part and the connecting piece.

7. An improved fire check valve as defined in claim 5, wherein: the limiting block is provided with a through hole corresponding to the temperature sensing element, and the height of the through hole is smaller than that of the hollow part.

8. An improved fire check valve as defined in claim 1, wherein: the mounting bracket is located the rear side of connecting piece is provided with third hinge union piece, it has the second torsional spring to articulate on the third hinge union piece, the side torque arm of second torsional spring support press in the bottom of mounting bracket, the centre torque arm cover of second torsional spring is established on the connecting piece.

9. An improved fire check valve as defined in claim 1, wherein: the connecting piece is provided with a protruding part protruding from the rear side surface of the connecting piece to the direction of the stop block, and the clamping part is positioned on the protruding part.

10. An improved fire check valve as defined in any one of claims 1 to 9, wherein: the rear side of the mounting frame is obliquely arranged, and the stop block is assembled on the rear side of the mounting frame.