exhaust valve

Abstract

The present application relates to a kind of exhaust valves, solve the problem of oil liquid aggregation in flexible pipe.The exhaust valve includes: valve body, the valve body is equipped with the exhaust passage for flowing gas, the exhaust passage is equipped with air inlet and air outlet, the air inlet is located at the first end of the exhaust passage, the air outlet is located at the end of the exhaust passage;Smoke valve piece unit, the smoke valve piece unit includes at least one smoke valve piece, each smoke valve piece is movably arranged in the valve body, the smoke valve piece unit moves relative to the valve body, to connect or disconnect the gas flow path between the air inlet and the air outlet;Wherein, the air inlet and the horizontal plane exist angle.

Description

Technical Field

[0001] This invention relates to an exhaust valve. Background Technology

[0002] join Figure 6 The existing exhaust valve 01 includes a valve body 011 and a valve plate 012. The valve body 011 is provided with an air inlet 0112 and an exhaust outlet 0111. The valve plate 012 is located on the valve body 011 and is used to open or close the exhaust outlet 0111. The exhaust valve 01 is located in the flue 03 through the valve body 011. The flexible pipe 021 on the range hood 02 is sleeved on the valve body 011. The oil fumes discharged from the range hood 02 pass through the flexible pipe 021 and the exhaust valve 01 in sequence and then enter the flue 03.

[0003] from Figure 6 As can be seen, since the air inlet 0112 is perpendicular to the horizontal plane, the flexible pipe 021 includes at least a horizontal section 0211 that is parallel to the horizontal plane. When the flexible pipe 021 includes at least a horizontal section 0211 that is parallel to the horizontal plane, the oil fumes discharged from the range hood 02 and entering the flexible pipe 021 will turn into oil upon cooling and accumulate on the horizontal section 0211. The accumulation of oil on the horizontal section 0211 has the following disadvantages: 1. After the oil on the horizontal section 0211 accumulates to a certain amount, the oil will flow back into the range hood 02 through the flexible pipe 021; 2. The horizontal section 0211 with accumulated oil will cause the flexible pipe 021 to separate from the valve body 011. Summary of the Invention

[0004] The problem to be solved by this invention is to provide a flue that solves the problem of oil accumulation inside a flexible pipe.

[0005] To address the above problems, the present invention provides the following technical solution:

[0006] An exhaust valve, characterized in that it comprises:

[0007] The valve body is provided with an exhaust passage for flowing gas. The exhaust passage is provided with an inlet and an outlet. The inlet is located at the beginning of the exhaust passage, and the outlet is located at the end of the exhaust passage.

[0008] The smoke exhaust valve plate unit includes at least one smoke exhaust valve plate, each smoke exhaust valve plate is movably disposed on the valve body, and the smoke exhaust valve plate unit moves relative to the valve body to connect or disconnect the gas flow path between the air inlet and the air outlet;

[0009] There is an angle between the air inlet and the horizontal plane.

[0010] In this invention, the exhaust valve is provided with an exhaust channel, and an air inlet is provided at the beginning of the exhaust channel. The air inlet is at an angle to the horizontal plane. When the air inlet is at an angle to the horizontal plane and the flexible pipe of the range hood is inserted into the valve body, the flexible pipe is tilted. This design solves the problem of oil accumulation in the flexible pipe.

[0011] Furthermore, the exhaust channel is angled. This design prevents oil from accumulating within the exhaust channel.

[0012] Furthermore, the exhaust channel is also provided with an exhaust port located between the air inlet and the air outlet. The exhaust port is inclined downwards towards the air outlet, and each smoke exhaust valve is located above the exhaust port and is used to open or close the exhaust port. With this design, the smoke exhaust valve will close the exhaust port under its own gravity.

[0013] Furthermore, the valve body includes an annular baffle, and the exhaust port is located on the annular baffle; each smoke exhaust valve plate is hinged to the outer side of the annular baffle. This design facilitates the installation of the smoke exhaust valve plates.

[0014] Furthermore, the valve body also includes an annular cylinder and a base. The air inlet and the annular baffle are located on the annular cylinder, and the air outlet is located on the base. The annular cylinder is detachably mounted on the base. This design facilitates cleaning of the exhaust valve plate and the annular cylinder, as well as the replacement of new exhaust valve plates and new annular cylinders.

[0015] Furthermore, by replacing the annular cylinder, the angle between the air inlet and the horizontal plane can be changed. This design allows the exhaust valve to adapt to range hoods of different heights.

[0016] Furthermore, the base is provided with an air inlet and an air outlet, the air outlet is the air outlet, the air inlet and the air outlet are parallel, and when the air inlet and the air outlet are parallel, there is an angle between the air inlet and the air inlet.

[0017] Alternatively, the base may have an air inlet and an air outlet, with the air outlet being the air outlet end. An angle exists between the air inlet and the air outlet end. When this angle exists, the air inlet end is parallel to the air inlet. The base and the annular cylinder are manufactured in different sizes at the factory. When the base is installed on a wall or flue, the annular cylinder is mounted on the base, thus controlling the angle between the air inlet and the horizontal plane. This design avoids the need to adjust the angle between the air inlet and the horizontal plane during on-site installation of the exhaust valve.

[0018] Furthermore, the first end of the annular cylinder is bent inward to form a first flange; and / or, the first end of the base is bent outward to form a second flange. The first flange is used to enhance the deformation resistance of the first end of the annular cylinder, and the second flange is used to enhance the deformation resistance of the first end of the base.

[0019] Furthermore, the smoke exhaust valve plate unit includes two smoke exhaust valve plates, each of which is movably disposed on the outer side of the annular baffle and / or the base; the smoke isolation valve plate unit includes two smoke isolation valve plates, the two smoke isolation valve bodies are fixedly connected by a locking mechanism, when the smoke isolation valve plate unit closes the smoke isolation port and the smoke exhaust valve plate unit closes the exhaust port, the smoke isolation valve plate unit, the smoke exhaust valve plate unit and the annular baffle form a smoke isolation chamber.

[0020] Furthermore, the exhaust channel is also equipped with a smoke-proof opening.

[0021] The exhaust valve also includes:

[0022] A smoke-proof valve plate unit is located between the air inlet and the smoke exhaust valve plate unit. The smoke-proof valve plate unit includes at least one smoke-proof valve plate, and each smoke-proof valve plate is movably disposed on the inner side of the annular baffle and / or the base to open or close the smoke-proof port.

[0023] When the smoke exhaust valve plate and the smoke isolation valve plate are installed on the same annular cylinder, since the smoke exhaust valve plate is movably installed on the outer side of the annular cylinder and the smoke isolation valve plate is movably installed on the inner side of the annular cylinder, the deformation resistance of the annular cylinder will be enhanced when both its inner and outer sides are subjected to force.

[0024] Furthermore, the annular cylinder includes a step, the step including a small diameter section, a large diameter section and a connecting section for connecting the small diameter section and the large diameter section, the small diameter section is inserted into the base, when the small diameter section is inserted into the base and the outer wall of the connecting section abuts against the base, the annular cylinder and the base are fixedly connected by one or more of fasteners, latches, rivets and pins;

[0025] Alternatively, the annular cylinder includes a step, the step including a small diameter section, a large diameter section and a connecting section for connecting the small diameter section and the large diameter section, the small diameter section is inserted into the base, and when the small diameter section is inserted into the base and the outer wall of the connecting section abuts against the base, the annular cylinder is threadedly connected to the base;

[0026] Alternatively, the annular cylinder includes a step, the step including a small diameter section, a large diameter section, and a connecting section for connecting the small diameter section and the large diameter section. The small diameter section is inserted into the base. When the small diameter section is inserted into the base and the outer wall of the connecting section abuts against the base, the annular cylinder is snapped into connection with the base.

[0027] The small-diameter section is used to increase the contact area between the annular cylinder and the base, the connecting section is used to control the depth of the annular cylinder inserted into the base, and fasteners, locks, rivets, pins, threaded connections and snap-fit ​​connections are used to achieve secondary fixation between the annular cylinder and the base. Attached Figure Description

[0028] Figure 1 This is a perspective view of the exhaust valve in a preferred embodiment of the present invention;

[0029] Figure 2 This is a front view of the exhaust valve in a preferred embodiment of the present invention;

[0030] Figure 3 for Figure 2 Sectional view at point AA;

[0031] Figure 4 for Figure 3 A magnified view of a section at point B in the middle;

[0032] Figure 5 This is a schematic diagram of the structure of the range hood with the flexible pipe and flue connected by an exhaust valve in a preferred embodiment of the present invention;

[0033] Figure 6 This is a schematic diagram of the structure of an existing range hood where the flexible pipe is connected to the flue via an exhaust valve. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be explained and described below with reference to the accompanying drawings. However, the following embodiments are only preferred embodiments of the present invention and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments in the implementation methods without creative effort are all within the protection scope of the present invention.

[0035] Example 1

[0036] See Figure 1 , Figure 2 and Figure 3 The exhaust valve includes:

[0037] The valve body 100 is provided with an exhaust passage 400 for flowing gas. The exhaust passage 400 is provided with an air inlet 401 and an air outlet 404. The air inlet 401 is located at the beginning of the exhaust passage 400, and the air outlet 404 is located at the end of the exhaust passage 400.

[0038] The smoke exhaust valve plate unit includes at least one smoke exhaust valve plate 200. Each smoke exhaust valve plate 200 is movably disposed on the valve body 100. The smoke exhaust valve plate unit moves relative to the valve body 100 to connect or disconnect the gas flow path between the air inlet 401 and the air outlet 404.

[0039] There is an angle α between the air inlet 401 and the horizontal plane.

[0040] like Figure 3 As shown, the exhaust channel is set at a 400° angle.

[0041] See Figure 1 and Figure 3 The exhaust passage 400 is also provided with an exhaust port 402 located between the air inlet 401 and the air outlet 404. The exhaust port 402 is inclined from top to bottom toward the air outlet 404. Each smoke exhaust valve plate 200 is located above the exhaust port 402 and is used to open or close the exhaust port 402.

[0042] See Figure 1 , Figure 3 and Figure 4 The valve body 100 includes an annular baffle 104, and the exhaust port 402 is located on the annular baffle 104; each exhaust valve plate 200 is hinged to the outer side of the annular baffle 104.

[0043] See Figure 1 and Figure 3 The valve body 100 also includes an annular cylinder 1 and a base 2. An air inlet 401 and an annular baffle 104 are disposed on the annular cylinder 1, wherein the air inlet 401 is located at the first end of the annular cylinder 1 and the annular baffle 104 is located at the end of the annular cylinder 1. The air outlet 404 is disposed on the base 2, and the annular cylinder 1 is detachably disposed on the base 2.

[0044] like Figure 3 As shown, the base 2 is provided with an air inlet and an air outlet, with the air outlet 404 being the air outlet. An angle exists between the air inlet and the air outlet. When an angle exists between the air inlet and the air outlet, the air inlet is parallel to the air inlet 401. In other embodiments of the present invention, the base is provided with an air inlet and an air outlet, with the air outlet being the air outlet. The air inlet and the air outlet are parallel. When the air inlet and the air outlet are parallel, an angle exists between the air inlet and the air inlet.

[0045] See Figure 3 and Figure 4 The annular cylinder 1 is bent inward at its first end to form a first flange 12, and the base 2 is bent outward at its first end to form a second flange 23. In other embodiments of the present invention, the annular cylinder is bent inward at its first end to form a first flange; or, the base is bent outward at its first end to form a second flange.

[0046] See Figure 1 and Figure 3 The exhaust passage 400 is also equipped with a smoke-proof opening 403.

[0047] The exhaust valve also includes:

[0048] A smoke-blocking valve unit is located between the air inlet 401 and the smoke exhaust valve unit. The smoke-blocking valve unit includes at least one smoke-blocking valve 300, each movably disposed on the inner side of the annular baffle 104 to open or close the smoke-blocking port 403. In other embodiments of the invention, each smoke-blocking valve is movably disposed on a base; or, each smoke-blocking valve is movably disposed on both the inner side of the annular baffle and the base.

[0049] See Figure 1 The smoke exhaust valve plate unit includes two smoke exhaust valve plates 200, each smoke exhaust valve plate 200 being movably disposed on the outer side of the annular baffle 104. In other embodiments of the present invention, each smoke exhaust valve plate is movably disposed on the base; or, each smoke exhaust valve plate is movably disposed on both the outer side of the annular baffle and the base.

[0050] In this embodiment, the smoke isolation valve plate unit includes two smoke isolation valve plates 300. The two smoke isolation valve bodies 300 are fixedly connected by a locking mechanism. When the smoke isolation valve plate unit closes the smoke isolation port 403 and the smoke exhaust valve plate unit closes the exhaust port 402, the smoke isolation valve plate unit, the smoke exhaust valve plate unit, and the annular baffle 104 form a smoke isolation chamber.

[0051] It should be noted that the locking mechanism includes a brazing ring, and each smoke-proof valve plate is provided with a rod. When two smoke-proof valve plates are fixedly connected by the locking mechanism, the rod is inserted into the brazing ring. In other embodiments of the present invention, the locking mechanism includes a first connecting plate, a second connecting plate, and brazing material for connecting the first connecting plate and the second connecting plate. The first connecting plate is disposed on one of the smoke-proof valve plates, and the second connecting plate is disposed on the other smoke-proof valve plate; or, the locking mechanism includes a first connecting plate and brazing material. The first connecting plate is disposed on one of the smoke-proof valve plates, and the first connecting plate is fixedly connected to the other smoke-proof valve body by brazing material; or, the locking mechanism includes brazing material, and the two smoke-proof valve bodies are fixedly connected by brazing material.

[0052] In this embodiment, the smoke exhaust valve plate 200 is rotatably connected to the outer side of the annular baffle 104, and the smoke isolation valve plate 300 is rotatably connected to the inner side of the annular baffle 104. In other embodiments of the present invention, the smoke exhaust valve plate is rotatably connected to one end of the first connecting rod, and the other end of the first connecting rod is rotatably connected to the outer side of the annular baffle; the smoke isolation valve plate is rotatably connected to one end of the second connecting rod, and the other end of the second connecting rod is rotatably connected to the outer side of the annular baffle.

[0053] See Figure 1 and Figure 4The annular cylinder 1 includes a first step, which includes a first small diameter section 101, a first large diameter section 103, and a first connecting section 102 for connecting the first small diameter section 101 and the first large diameter section 103. The first small diameter section 101 is inserted into the base 2. When the first small diameter section 101 is inserted into the base 2 and the outer wall of the first connecting section 102 abuts against the base 2, the annular cylinder 1 and the base 2 are fixedly connected by one or more of fasteners, latches 500, rivets, and pins. Preferably, the annular cylinder 1 and the base 2 are fixedly connected by latches 500. In other embodiments of the present invention, the annular cylinder includes a first step, the first step including a first small diameter section, a first large diameter section and a first connecting section for connecting the first small diameter section and the first large diameter section, the first small diameter section being inserted into the base, and when the first small diameter section is inserted into the base and the outer wall of the first connecting section abuts against the base, the annular cylinder is threadedly connected to the base; or, the annular cylinder includes a first step, the first step including a first small diameter section, a first large diameter section and a first connecting section for connecting the first small diameter section and the first large diameter section, the first small diameter section being inserted into the base, and when the first small diameter section is inserted into the base and the outer wall of the first connecting section abuts against the base, the annular cylinder is snap-fitted to the base.

[0054] See Figure 4 The base 2 includes a second step, which includes a second small diameter section 201, a second large diameter section 203, and a second connecting section 202 for connecting the second small diameter section 201 and the second large diameter section 203. A sealing ring is inserted into the second large diameter section 203. When the sealing ring is inserted into the second large diameter section 203 and abuts against the inner wall of the second connecting section 202, at least a portion of the sealing ring extends outside the second large diameter section 203.

[0055] In this embodiment, the base 2 is also provided with a third flange 22, which is formed by bending the second large-diameter section 203 outward. When the third flange 22 abuts against the wall or flue, the sealing ring is clamped between the inner wall of the second connecting section 202 and the wall (or flue). This design avoids the phenomenon of flue gas leakage between the base 2 and the wall or flue.

[0056] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Those skilled in the art should understand that the present invention includes, but is not limited to, the contents described in the accompanying drawings and the specific embodiments above. Any modifications that do not depart from the functional and structural principles of the present invention will be included within the scope of the claims.

Claims

1. An exhaust valve, characterized in that... include: A valve body is provided with an exhaust channel for flowing gas. The exhaust channel has an air inlet, an air outlet, a smoke barrier, and an exhaust port. The air inlet is located at the beginning of the exhaust channel, and the air outlet is located at the end of the exhaust channel. The valve body includes an annular baffle, an annular cylinder, and a base. The annular cylinder is detachably mounted on the base, and the exhaust port is located on the annular baffle. Each smoke exhaust valve plate is hinged to the outer side of the annular baffle. The air inlet and the annular baffle are located on the annular cylinder, and the air outlet is located on the base. The annular cylinder includes a step, which includes a small-diameter section, a large-diameter section, and a connecting section for connecting the small-diameter section and the large-diameter section. The small-diameter section is inserted into the base, and the outer wall of the connecting section abuts against the base. The smoke exhaust valve plate unit includes at least one smoke exhaust valve plate, each smoke exhaust valve plate is movably disposed on the valve body, and the smoke exhaust valve plate unit moves relative to the valve body to connect or disconnect the gas flow path between the air inlet and the air outlet; A smoke-proof valve plate unit is located between the air inlet and the smoke exhaust valve plate unit. The smoke-proof valve plate unit includes at least one smoke-proof valve plate, and each smoke-proof valve plate is movably disposed on the inner side of the annular baffle and / or the base to open or close the smoke-proof port. When the smoke-proof valve unit closes the smoke-proof port and the smoke-exhaust valve unit closes the exhaust port, the smoke-proof valve unit, the smoke-exhaust valve unit, and the annular baffle form a smoke-proof cavity; There is an angle between the air inlet and the horizontal plane.

2. The exhaust valve as described in claim 1, characterized in that, The exhaust channel is set at an angle.

3. The exhaust valve as described in claim 1, characterized in that, The exhaust passage is also provided with an exhaust port located between the air inlet and the air outlet. The exhaust port is inclined from top to bottom toward the air outlet. Each smoke exhaust valve is located above the exhaust port and is used to open or close the exhaust port.

4. The exhaust valve as described in claim 1, characterized in that, The base is provided with an air inlet and an air outlet, the air outlet is the air outlet, the air inlet and the air outlet are parallel, and when the air inlet and the air outlet are parallel, there is an angle between the air inlet and the air inlet. Alternatively, the base may have an air inlet and an air outlet, with the air outlet being the air outlet. An angle may exist between the air inlet and the air outlet. When an angle exists between the air inlet and the air outlet, the air inlet is parallel to the air inlet.

5. The exhaust valve as described in claim 1, characterized in that, The first end of the annular cylinder is bent inward to form a first flange; and / or, the first end of the base is bent outward to form a second flange.

6. The exhaust valve as described in claim 1, characterized in that, The smoke exhaust valve plate unit includes two smoke exhaust valve plates, each of which is movably disposed on the outer side of the annular baffle and / or the base; the smoke isolation valve plate unit includes two smoke isolation valve plates, and the two smoke isolation valve bodies are fixedly connected by a locking mechanism.

7. The exhaust valve as described in claim 1, characterized in that, When the small-diameter section is inserted into the base and the outer wall of the connecting section abuts against the base, the annular cylinder and the base are fixedly connected by one or more of fasteners, latches, rivets, and pins. Alternatively, when the small-diameter section is inserted into the base and the outer wall of the connecting section abuts against the base, the annular cylinder is threadedly connected to the base; Alternatively, when the small-diameter section is inserted into the base and the outer wall of the connecting section abuts against the base, the annular cylinder is snapped into connection with the base.

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