CN213332556U - Locking device for oil smoke discharging fireproof check valve - Google Patents

Abstract

The utility model provides a locking device for oil extraction cigarette fire prevention check valve relates to oil extraction cigarette fire prevention check valve technical field, and it is little to have solved the effort between valve block and the valve body among the prior art, easily makes the valve block rotate to open the technical problem that causes the conflagration to stretch. This locking device is including the temperature sensing control element who is used for the temperature in the perception pipeline, set up the elastic component on the valve body and set up in the extension in the valve block outside, temperature sensing control element sets up in the valve body lower part, elastic component's elasticity end is connected with temperature sensing control element, when temperature sensing control element reaches nominal action temperature, elastic component's elasticity end and temperature sensing control element separation and resume deformation support tight extension, and then the valve block is closed in the locking, the effort between valve block and the valve body has greatly been increased, avoided wind-force to make the valve block rotate to open the condition emergence that causes the conflagration to stretch, moreover, the steam generator is simple in structure, high durability and convenient use, the utility model is used for making the use of oil extraction cigarette.

Description

Locking device for oil smoke discharging fireproof check valve

Technical Field

The utility model belongs to the technical field of the oil extraction cigarette fire prevention check valve technique and specifically relates to a locking device for oil extraction cigarette fire prevention check valve is related to.

Background

The oil smoke discharging fireproof check valve is installed at the rear end of a kitchen range hood or a toilet exhaust fan to the inlet of a shared exhaust pipeline with fire resistance grade, the fan is in an opening state during working, waste gas is discharged, the fan is in a natural closing state during non-working, waste gas backflow is prevented, when the temperature reaches a specified value in a room or a shared air channel, the check valve can be automatically closed, the requirement on fire resistance can be met within a specified time, and the function of smoke separation and fire retardation is achieved. The oil smoke discharging fireproof check valve comprises a valve body and a valve plate arranged on the valve body, and when the oil smoke discharging fireproof check valve works normally, smoke is introduced into the oil smoke discharging fireproof check valve through a ventilating duct by a range hood or an exhaust fan, blows the valve plate open and then is discharged into a public exhaust duct; after the range hood or the exhaust fan is closed, the valve plate is automatically closed and covers the opening of the valve body under the action of gravity.

However, the acting force between the valve plate and the valve body of the existing oil smoke discharging fireproof check valve is small, the valve plate is easy to rock and open again under the action of wind power, the sealing effect is poor, and particularly when a fire disaster occurs in a public flue, the valve plate rotates relative to the valve body, so that the fire disaster is easily spread indoors, and the result is unreasonable.

Therefore, how to solve the technical problem that the acting force between the valve plate and the valve body is small and the valve plate is easy to rotate and open to cause fire spreading in the prior art becomes an important technical problem to be solved by the personnel in the field.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a locking device for oil extraction cigarette fire prevention check valve, it is little to have solved the effort between valve block and the valve body among the prior art, easily makes the valve block rotate to open the technical problem who causes the conflagration to stretch. The utility model provides a plurality of technical effects that preferred technical scheme among a great deal of technical scheme can produce see the explanation below in detail.

In order to achieve the above purpose, the utility model provides a following technical scheme:

the utility model provides a locking device for oil extraction gas fire prevention check valve, include: the temperature sensing control element is used for sensing the temperature in the pipeline and is arranged outside the valve body; the elastic end of the elastic component is connected with the temperature sensing control element; the extension piece is arranged on the outer side of the valve plate; when the temperature sensing control element reaches the nominal action temperature, the elastic end of the elastic component is separated from the temperature sensing control element and recovers deformation to abut against the extending piece, and then the valve plate is locked and closed.

Preferably, the elastic component comprises a first support and a second support which are rotatably connected, and a torsion spring which is arranged between the first support and the second support in an abutting mode, the first support is fixedly connected with the valve body, and the second support is detachably connected with the temperature sensing control element.

Preferably, the first bracket and the second bracket are both U-shaped plate structures with hinged end parts.

Preferably, the temperature sensitive control element comprises a fuse connected to the valve body.

Preferably, the fuse link is provided with a connecting hole, and the elastic end of the elastic component is provided with a pull rod hooked and connected with the connecting hole.

Preferably, the pull rod is detachably connected with the elastic end of the elastic component.

Preferably, the valve plate is rotatably connected with the valve body, the extending piece is arranged at the position of the rotatable connection of the valve plate, and the extending piece extends outwards from the rear part of the valve plate.

Preferably, the extension piece comprises a fixing part and an extension part, wherein the fixing part is fixedly connected with the valve plate, and an opening groove for screwing and abutting an elastic end of the elastic component is formed in one side of the extension part, which is close to the elastic component.

Preferably, a protection component for preventing the temperature sensing control element and the elastic component from being damaged by foreign objects and a joint of the temperature sensing control element and the elastic component is arranged at the position close to the lower part of the valve body, and the protection component covers the outer sides of the temperature sensing control element and the elastic component.

Preferably, the protection assembly includes a first baffle and a second baffle which are respectively and oppositely arranged on two sides of the temperature sensing control element and the elastic assembly, the lower parts of the first baffle and the second baffle are fixedly connected with the valve body, and the upper parts of the first baffle and the second baffle are both extended towards the opposite position.

The utility model discloses compare in prior art and have following beneficial effect:

(1) the utility model discloses in, with temperature sensing control element, elastic component and extension set up in the outside of valve body, can sense the pipeline temperature more sensitively and carry out corresponding locking action of tightly supporting, under the normal conditions, the valve block can freely open and shut, only when the conflagration takes place in public flue or the exhaust pipe, when the temperature reaches temperature sensing control element's nominal action temperature, elastic component just can lock dead fixed valve block with the extension, greatly increased the connecting force between valve block and the valve body, avoided wind-force to make the valve block rotate to open and cause the condition emergence that the conflagration stretchs, moreover, the steam generator is simple in structure, high durability and convenient use.

(2) In the utility model, the elastic component comprises a first support, a second support and a torsion spring, when the second support is connected with the temperature sensing control element, the torsion spring is twisted, deformed and stored with energy, and the valve plate can be freely opened and closed; when the second support is separated from the temperature sensing control element, the torsional spring is restored to deform to drive the second support to rotate, and then the second support is abutted against the extending piece to lock the valve plate.

(3) The utility model discloses in, extension includes fixed part and extension, and fixed part fixed connection has seted up the open slot at the rear portion of valve block in one side that the bottom of extension is close to elastic component for supply elastic component's elasticity end, it is fixed to carry out the screw in butt, and then compresses tightly valve block laminating valve body through extension, has greatly increased the effort between valve block and the valve body.

(4) The utility model discloses in, the temperature sensing control element includes the fuse, and the first end of fuse and valve body fixed connection, the connecting hole has been seted up to the second end, hooks through the pull rod between second support and the connecting hole and establish the connection to when making fuse fusing or warp, second support and pull rod are changeed and are broken away from with the fuse and move.

(5) The utility model discloses in, the valve body lower part is close to the position department that is close to in temperature sensing control element and elastic component and is provided with the protection component for in avoiding valve body transportation and use, the foreign object touching or striking elastic component and temperature sensing control element and the coupling part between the two lead to the condition of whole locking device inefficacy to take place.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a front view of a valve body provided in an embodiment of the present invention;

fig. 2 is a schematic view of the overall structure of the locking device for the oil smoke exhaust fireproof check valve when the valve body provided by the embodiment of the invention is placed upside down;

fig. 3 is a schematic view of the overall structure of the locking device after the first baffle is hidden according to the embodiment of the present invention;

fig. 4 is a side view of the locking device after the first baffle is hidden according to the embodiment of the present invention.

FIG. 1-elastic component; 2-an extension; 3-a valve body; 4, valve plates; 5-a first scaffold; 6-a second bracket; 7-a fuse; 8-connecting holes; 9-a pull rod; 10-a fixed part; 11-an extension; 12-an open slot; 13-a protective component; 14-a first baffle; 15-second baffle.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

An object of the utility model is to provide a locking device for oil extraction cigarette fire prevention check valve, it is little to have solved the effort between valve block and the valve body among the prior art, easily makes the valve block rotate to open the technical problem who causes the conflagration to stretch.

Hereinafter, embodiments will be described with reference to the drawings. The embodiments described below do not limit the scope of the invention described in the claims. Further, the entire contents of the configurations shown in the following embodiments are not limited to those necessary as a solution of the invention described in the claims.

Referring to fig. 1-4, the utility model provides a locking device for oil extraction flue gas fire prevention check valve, including temperature sensing control element, elastic component 1 and extension 2, temperature sensing control element connects the bottom that sets up at valve body 3 for the temperature in the perception pipeline, it needs to explain that, the pipeline here indicates air pipe in valve body 3 and the outer public flue of valve body 3, specifically, the bottom of valve body 3 is provided with the through-hole, and temperature sensing control element connects and covers in through-hole department, can perceive the inside and outside temperature of valve body 3 simultaneously. The temperature sensing control element can be integrally arranged at the bottom of the valve body 3, so that the temperature sensing in the public flue is more sensitive. The fixed end of the elastic component 1 is fixedly connected to the valve body 3, and the elastic end is connected with the temperature sensing control element. The extension piece 2 is fixedly connected to the outer side of the rear part of the valve body 3, when the temperature sensing control element does not reach the nominal action temperature, the elastic end of the elastic component 1 is connected with the temperature sensing control element, the elastic component 1 stores force, at the moment, the extension piece 2 is a free end, and the valve plate 4 can be freely opened and closed. When the temperature sensing control element reaches the nominal action temperature, the elastic end of the elastic component 1 is separated from the temperature sensing control element and recovers deformation to abut against the extension piece 2, and then the valve plate 4 is locked and closed, so that the valve plate 4 is tightly attached to the valve body 3, and the valve plate 4 cannot be blown open by the gas inside and outside the valve body 3. According to the configuration, the utility model discloses with temperature sensing control element, elastic component 1 and extension 2 set up in the outside of valve body 3, can sense the pipeline temperature more sensitively and carry out corresponding locking action of tightly supporting, under the normal conditions, valve block 4 can freely open and shut, only when the conflagration takes place in public flue or the exhaust pipe, when the temperature reaches temperature sensing control element's nominal action temperature, elastic component 1 just can lock fixed valve block 4 with extension 2, greatly increased the connecting force between valve block 4 and the valve body 3, avoided wind-force to make valve block 4 rotate to open the condition emergence that causes the conflagration to stretch, moreover, the steam generator is simple in structure, high durability and convenient use, the effort of valve block between valve block and the valve body is little among the prior art has been solved, easily make the valve block rotate to open the technical problem that causes the conflagrat.

As the embodiment of the utility model provides an optional embodiment, elastic component 1 includes first support 5, second support 6 and torsional spring (not shown in the figure), be rotatable coupling between the tip of first support 5 and second support 6, its direction of rotation sets up along the direction parallel with the axis of rotation of valve block 4, the main part of torsional spring can overlap and establish the axis of rotation department of installing at first support 5 and second support 6, the both ends of torsional spring can respectively the butt on first support 5 and second support 6, the connection of torsional spring is close with prior art and is no longer repeated here. The first support 5 is fixedly connected with the valve body 3 to support and fix the elastic component 1 and the valve body 3, and the connection can be, but is not limited to, welding. The second support 6 is detachably connected with the temperature sensing control element, so that the temperature sensing control element and the temperature sensing control element are more easily separated when the temperature sensing control element acts, and in this arrangement, when the second support 6 is connected with the temperature sensing control element, the torsion spring is twisted, deformed and stored with energy, and the valve plate 4 can be freely opened and closed; when the second support 6 is separated from the temperature sensing control element, the torsion spring returns to deform to drive the second support 6 to rotate, and then the torsion spring is abutted against the extension piece 2 to lock the valve plate 4.

Further, the first support 5 and the second support 6 are both U-shaped plate structures with hinged ends, specifically, the two side plates of the first support 5 and the second support 6 are hinged respectively, one end of the first support 5 close to the bottom plate is used for being connected with the temperature sensing control element, and the bottom plate of the second support 6 is fixedly connected with the valve body 3, so that the connection support is more stable.

As the embodiment of the utility model provides an optional implementation mode, temperature sensing control element includes fuse 7, fuse 7 and valve body 3 fixed connection, specifically, fuse 7 can be "L" type plate structure, its first end and valve body 3 fixed connection, the second end perk is connected with second support 6, when fuse 7 reaches nominal operating temperature, fuse 7 can be heated fusing or be out of shape to make its second end break away from with second support 6, wherein, fuse 7 can be but not limited to for brazing filler metal or two temperature sheetmetals. The nominal operation temperature value range of the temperature sensing control element is 69.5-70.5 ℃ or 149.5-150.5 ℃, and preferably, the nominal operation temperature value range of the temperature sensing control element is 70 ℃ or 150 ℃, so that the temperature sensing control element is better suitable for an exhaust pipeline of a toilet or a kitchen fume exhaust pipeline.

Further, the second end of fuse-link 7 can be opened and be equipped with connecting hole 8, and the elasticity end of elastic component 1 is provided with pull rod 9, and pull rod 9 hooks and establishes in connecting hole 8, is connected through the connecting rod hook between second support 6 and the fuse-link 7 promptly to when making fuse-link 7 fuse or warp, second support 6 and pull rod 9 are changeed and are broken away from with fuse-link 7 and move.

Further, the pull rod 9 is detachably connected with the elastic end of the elastic component 1, specifically, two sides of the second support 6 can be respectively provided with a side hole, the pull rod 9 can be provided with two pull rods, and the end portion of any one pull rod 9 is respectively hooked at the side hole of the second support 6 and the connecting hole 8 of the fuse link 7, so that the pull rod 9 and the fuse link 7 as well as the pull rod 9 and the second support 6 can be separated.

As the embodiment of the utility model provides an optional embodiment, be rotatable coupling between valve block 4 and the valve body 3, extension 2 sets up in the rotatable coupling position department of valve block 4 and extension 2 is outwards extended by 4 rear portions of valve block, and extension 2 is the free end to the outside extension of valve block 4 promptly, and extension 2 can be with 4 integrated into one piece of valve block or extension 2 can be the shaft-like structure with 4 fixed connection of valve block.

Further, extension 2 includes fixed part 10 and extension 11, and fixed part 10 can be integrated into one piece with extension 11, and fixed part 10 fixed connection has seted up open slot 12 at the rear portion of valve block 4, and the bottom of extension 11 is close to one side of elastic component 1 for supply elastic component 1's elasticity end, second support 6 promptly, it is fixed to carry out the screw in butt, and then compresses tightly valve block 4 laminating valve body 3 through extension 2.

As the embodiment of the utility model provides an optional implementation mode, the position department that valve body 3 lower part is close to in temperature sensing control element and elastic component 1 is provided with protection component 13, and protection component 13 covers the outside that sets up at temperature sensing control element and elastic component 1 for in avoiding valve body 3 transportation and use, the condition that foreign object touching or striking elastic component 1 and temperature sensing control element and junction between the two lead to whole locking device to become invalid takes place.

Further, protection component 13 includes first baffle 14 and second baffle 15, first baffle 14 and second baffle 15 are the relatively fixed both sides that set up at temperature sensing control element and elastic component 1 respectively, the lower part and the valve body 3 fixed connection of first baffle 14 and second baffle 15, the upper portion of first baffle 14 and second baffle 15 all extends the setting towards other side position department, first baffle 14 and second baffle 15 all can be the long slat column structure of "S" type that sets up relatively promptly, can play when sheltering from the guard action, it is equipped with apart from the space to leave between two baffles, the circulation of the flue gas of being convenient for, so that the temperature in the timely perception public flue of temperature sensing control element.

In the description of the present invention, it is to be noted that, unless otherwise specified, "a plurality" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood as the case may be, by those of ordinary skill in the art.

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

Claims (10)

1. The utility model provides a locking device for oil extraction cigarette fire prevention check valve which characterized in that includes:

the temperature sensing control element is used for sensing the temperature in the pipeline and is arranged at the lower part of the valve body (3);

the elastic component (1) is arranged on the valve body (3), and the elastic end of the elastic component is connected with the temperature sensing control element;

an extension piece (2) arranged on the outer side of the valve plate (4);

when the temperature sensing control element reaches the nominal action temperature, the elastic end of the elastic component (1) is separated from the temperature sensing control element and recovers deformation to abut against the extension piece (2), and then the valve plate (4) is locked and closed.

2. The locking device for a fire check valve for extractor hood according to claim 1, wherein the elastic assembly (1) comprises a first bracket (5) and a second bracket (6) which are rotatably connected, and a torsion spring which is disposed between the first bracket (5) and the second bracket (6) in an abutting manner, the first bracket (5) is fixedly connected with the valve body (3), and the second bracket (6) is detachably connected with the temperature-sensitive control element.

3. Locking device for a fire check valve for extractor hood according to claim 2, characterized in that said first bracket (5) and said second bracket (6) are both "U" -shaped plate-like structures hinged at the ends.

4. Locking device for a fire check valve for extractor hood gases according to claim 1, characterized in that said temperature-sensitive control element comprises a fuse (7) fixedly connected to said valve body (3).

5. Locking device for a fire check valve for extractor hood smoke according to claim 4, characterized in that said fuse element (7) is provided with a connection hole (8), the elastic end of said elastic assembly (1) being provided with a tie rod (9) hooked in connection with said connection hole (8).

6. Locking device for a fire check valve for extractor hood gases according to claim 5, characterized in that said tie rod (9) is removably connected to the elastic end of said elastic assembly (1).

7. Locking device for a smoke-exhaust fire-check valve according to claim 1, wherein said valve plate (4) is rotatably connected to said valve body (3), said extension member (2) is provided at the position of rotatable connection of said valve plate (4) and said extension member (2) extends outwards from the rear of said valve plate (4).

8. Locking device for a smoke-exhaust fire-check valve according to claim 7, wherein said extension piece (2) comprises a fixing portion (10) fixedly connected to said valve plate (4) and an extension portion (11), and an opening groove (12) for screwing and abutting an elastic end of said elastic assembly (1) is provided on a side of said extension portion (11) close to said elastic assembly (1).

9. The locking device for a fire check valve for range hood according to claim 1, wherein a protection member (13) for preventing foreign objects from damaging the temperature sensitive control element and the elastic member (1) and a joint therebetween is provided at a position close to the lower portion of the valve body (3), and the protection member (13) covers the outside of the temperature sensitive control element and the elastic member (1).

10. The locking device for the fire check valve of the range hood according to claim 9, wherein the protection assembly (13) comprises a first baffle plate (14) and a second baffle plate (15) which are respectively oppositely arranged at two sides of the temperature-sensitive control element and the elastic assembly (1), the lower parts of the first baffle plate (14) and the second baffle plate (15) are fixedly connected with the valve body (3), and the upper parts of the first baffle plate (14) and the second baffle plate (15) are respectively arranged to extend towards the opposite position.

Images