Exhaust valve

Abstract

The invention relates to an exhaust valve. The structure of the exhaust valve is further optimized. The exhaust valve comprises a valve body, the valve body comprises a body and a base plate, the base plate is provided with at least one exhaust port, the body is provided with an exhaust channel, the base plate is arranged on the body and extends from the body to the center of the exhaust channel, the exhaust channel is provided with a medium inlet and a medium outlet, and the medium inlet and the medium outlet are communicated with each other. All the exhaust ports are positioned between the medium inlet and the medium outlet; each valve plate is movably arranged on the valve body and is used for opening or closing one exhaust port; the base plate is provided with a guiding piece used for guiding a medium to flow towards the exhaust port. And / or a detachable base is arranged on the valve body, and when the base is arranged on the valve body, a mounting hole for mounting the valve plate is defined by the base and the valve body.

Description

Technical Field

[0001] The invention relates to an exhaust valve. Background Art

[0002] The existing exhaust valve includes a valve body, a valve plate, a connecting rod and a torsion spring. The valve body is provided with an exhaust port. One end of the connecting rod is rotatably connected to the valve plate, and the other end of the connecting rod is rotatably connected to the valve body. One torsion arm of the torsion spring is provided on the connecting rod, and the other torsion arm of the torsion spring is provided on the valve body. The torsion spring is used to drive the connecting rod to drive the valve plate to move relative to the valve body, so as to realize that the valve plate opens or closes the exhaust port.

[0003] However, existing exhaust valves still have defects, including but not limited to: poor exhaust effect of the exhaust valve, complex structure of the exhaust valve, difficulty in disassembling and assembling the exhaust valve, the exhaust valve cannot change its exhaust effect after installation, and the exhaust valve cannot automatically change its exhaust effect. Summary of the invention

[0004] The problem to be solved by the present invention is to provide an exhaust valve and further optimize its structure.

[0005] To solve the above problems, the present invention provides the following technical solutions:

[0006] The exhaust valve includes:

[0007] A valve body, wherein the valve body comprises a main body and a substrate, wherein the substrate is provided with at least one exhaust port, wherein the main body is provided with an exhaust channel, wherein the substrate is provided on the main body and extends from the main body toward the center of the exhaust channel, wherein the exhaust channel is provided with a medium inlet and a medium outlet, and wherein all the exhaust ports are located between the medium inlet and the medium outlet;

[0008] At least one valve plate, each valve plate is movably disposed on the valve body and is used to open or close one of the exhaust ports;

[0009] Among them, the substrate is provided with a guide member for guiding the medium (the medium includes but is not limited to oil smoke, odorous gas, water vapor) to flow toward the exhaust port; and / or, the valve body is provided with a detachable base, when the base is arranged on the valve body, the base and the valve body form a mounting hole for mounting the valve plate.

[0010] In the present invention, each valve plate is movably arranged on the valve body. This structure simplifies the structure of the exhaust valve by omitting the connecting rod.

[0011] In the present invention, a guide member for guiding the medium to flow toward the exhaust port is provided on the substrate. When the guide member for guiding the medium to flow toward the exhaust port is provided on the substrate, the guide member can reduce the time the medium stays in the exhaust valve. This design solves the problem of poor exhaust effect of the exhaust valve.

[0012] In the present invention, a detachable base is provided on the valve body. When the base is provided on the valve body, the base and the valve body form a mounting hole for mounting the valve plate. In other words, after the base is removed from the valve body, the valve plate can be removed from the valve body. This design solves the problem of difficult assembly and disassembly of the exhaust valve, especially the problem of difficult assembly and disassembly of the valve plate.

[0013] Furthermore, the exhaust valve also includes a transformer tube, a transformer tube is provided with a transformer channel, the transformer tube is detachably arranged in the exhaust channel, the transformer tube includes a pressure taking section and a transformer section, the cross-sectional area of ​​the pressure taking section is different from the cross-sectional area of ​​the transformer section, and the transformer section is located between the pressure taking section and all exhaust ports.

[0014] In the present invention, the transformer includes a pressure-taking section and a transformer section, the cross-sectional area of ​​the pressure-taking section is different from the cross-sectional area of ​​the transformer section, and the transformer section is located between the pressure-taking section and all exhaust ports. When the cross-sectional area of ​​the pressure-taking section is different from the cross-sectional area of ​​the transformer section, and the transformer section is located between the pressure-taking section and all exhaust ports, at least one of the pressure-taking section, the transformer section, and the exhaust port generates a Venturi effect. With such a design, the transformer achieves enhanced exhaust effect of the exhaust valve by changing the gas pressure of the medium in the exhaust valve.

[0015] In the present invention, the transformer tube is detachably arranged in the exhaust passage. When the transformer tube is detachably arranged in the exhaust passage, even if the exhaust valve is installed in a building, the transformer tube can be removed from the exhaust valve. Such a design solves the problem that the exhaust valve cannot change its smoke exhaust effect after installation.

[0016] Furthermore, the transformer tube is fixedly connected to the valve body via a sealing ring, and the sealing ring is located between the transformer section and all exhaust ports;

[0017] And / or, the cross-sectional area of ​​the pressure taking section is different from the cross-sectional area of ​​the exhaust port, the cross-sectional area of ​​the voltage transformation section is different from the cross-sectional area of ​​the exhaust port, and the cross-sectional area of ​​the voltage transformation section>the cross-sectional area of ​​the pressure taking section>the cross-sectional area of ​​the exhaust port.

[0018] In the present invention, when the transformer tube and the valve body are fixedly connected by a sealing ring, and the sealing ring is located between the transformer section and all exhaust ports, the space between the transformer tube and the exhaust channel will be isolated from all exhaust ports, that is, the second cavity is not connected to all exhaust ports. This design prevents the medium in the space between the transformer tube and the valve body from entering the exhaust port and affecting the exhaust effect of the exhaust port.

[0019] In the present invention, when the cross-sectional area of ​​the transformer section is greater than the cross-sectional area of ​​the pressure-taking section and greater than the cross-sectional area of ​​the exhaust port, the pressure of the transformer section is greater than the pressure of the pressure-taking section and greater than the pressure of the exhaust port. According to the Bernoulli principle, a negative pressure will be formed at the exhaust port, that is, the medium will produce a Venturi effect at the exhaust port. With such a design, a negative pressure is formed at the exhaust port to achieve an enhanced smoke exhaust effect at the exhaust port (the smoke exhaust effect at the exhaust port includes the medium flow rate flowing through the exhaust port per unit time).

[0020] Further, when the transformer tube is fixedly connected to the valve body via a sealing ring, the sealing ring is located between the outer wall of the transformer tube and the wall of the exhaust passage; and / or a pressure relief groove is provided on the side wall of the transformer tube.

[0021] In the present invention, when the sealing ring is located between the outer wall of the transformer tube and the wall of the exhaust channel, the transformer tube will hardly move axially relative to the valve body; when the sealing ring is located between the side wall of the transformer tube and the side wall of the substrate, the transformer tube will hardly move radially relative to the valve body.

[0022] Furthermore, the transformer tube further comprises a tapered section, the transformer section is a gradually expanding section, the pressure taking section is arranged between the tapered section and the gradually expanding section, the gradually expanding section is provided with a convex rib extending outward, and the sealing ring is arranged between the convex rib and the valve body;

[0023] The cross-sectional area of ​​the tapered section is greater than the cross-sectional area of ​​the pressure taking section and greater than the cross-sectional area of ​​the exhaust port.

[0024] In the present invention, when the gradually expanding section is provided with convex ribs extending outward, the convex ribs are used to increase the deformation resistance of the gradually expanding section.

[0025] In the present invention, when the cross-sectional area of ​​the tapered section is greater than the cross-sectional area of ​​the pressure-taking section and greater than the cross-sectional area of ​​the exhaust port, the pressure of the tapered section is greater than the pressure of the pressure-taking section and greater than the pressure of the exhaust port. According to the Bernoulli principle, a negative pressure will be formed at the exhaust port, that is, the medium will produce a Venturi effect at the exhaust port. With such a design, the exhaust valve forms a secondary negative pressure to enhance the smoke exhaust effect at the exhaust port.

[0026] Furthermore, the tapered section is provided with a protrusion extending outward, at least part of the protrusion is located outside the convex rib, and when the sealing ring is arranged between the convex rib and the valve body, the protrusion abuts against the side wall of the valve body;

[0027] And / or, the base is detachably provided on the substrate. When the substrate is provided with a detachable base, the base is fixedly connected to the substrate by screws.

[0028] In the present invention, the protrusion is used to increase the deformation resistance of the tapered section. When the protrusion abuts against the side wall of the valve body, the protrusion can be used to limit the axial position of the transformer on the valve body.

[0029] In the present invention, the first magnetic member and the second magnetic member are used to ensure the reliability of the valve plate closing the exhaust port.

[0030] Furthermore, at least one of the transformer tube and the valve body is provided with a mounting channel, and when the transformer tube is provided in the exhaust channel, and the transformer tube is fixedly connected to the valve body via a sealing ring, the sealing ring and the mounting channel are located on both sides of the transformer tube;

[0031] And / or, a connecting portion is provided on the valve body, the connecting portion comprises a vertically arranged guide section and a transversely arranged locking section, and the guide section is connected with the locking section.

[0032] In the present invention, the installation channel can connect the second cavity with the external environment, that is, the second cavity obtains the ambient air pressure; the installation channel can also be used to place the data line of the ambient air pressure sensor; when the sealing ring and the installation channel are located on both sides of the transformer tube, the reliability of the sealing ring can be increased by setting the installation channel at a position away from the sealing ring.

[0033] Furthermore, at least part of the pressure-changing channel corresponds to the exhaust port, and a sealing ring is provided on the valve plate;

[0034] Wherein, a pressure taking hole is provided on the pressure taking section, and a real-time air pressure sensor is provided in the pressure taking hole; and / or, an ambient air pressure sensor is provided between the transformer tube and the exhaust passage.

[0035] Furthermore, the exhaust valve further comprises a driver, which is disposed on the valve body, and the driver directly or indirectly drives the valve plate to rotate relative to the valve body;

[0036] Or, at least one first magnetic member is disposed on the valve body, and at least one second magnetic member is disposed on the valve plate, and when each valve plate is movably disposed on the valve body to close one of the exhaust ports, the second magnetic member is attracted to the first magnetic member;

[0037] Or, the valve body is provided with at least one first step hole, the first step hole is provided with a first magnetic member, the first step hole includes a first step surface arranged vertically, the first magnetic member can abut against the first step surface, and the first step surface faces away from the valve plate; the valve plate is provided with at least one second magnetic member, when each valve plate is movably provided on the valve body to close one of the exhaust ports, the second magnetic member is adsorbed on the first magnetic member;

[0038] Or, at least one second step hole is provided on the valve plate, the second step hole is provided with a second magnetic component, the second step hole includes a second step surface arranged vertically, the second magnetic component can abut the second step surface, and the second step surface is facing away from the transformer; at least one first magnetic component is provided on the valve body, and when each valve plate is movably arranged on the valve body to close one of the exhaust ports, the second magnetic component is adsorbed on the first magnetic component.

[0039] Furthermore, the exhaust valve further comprises:

[0040] Real-time air pressure sensor, used to detect real-time air pressure value;

[0041] A driver, the driver being arranged on the valve body;

[0042] A transmission mechanism, wherein at least one valve plate is connected to the driver through the transmission mechanism;

[0043] A controller, wherein the real-time air pressure sensor is electrically connected to the controller, and after the real-time air pressure sensor converts the detected real-time air pressure value into an electrical signal and transmits it to the controller, the controller controls the driver to work or stop working;

[0044] After the controller controls the driver to work, the driver drives all valve plates to move relative to the valve body through the transmission mechanism to change the opening of each valve plate relative to one of the exhaust ports. With this design, the exhaust valve can automatically change its exhaust effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 It is a three-dimensional diagram of the exhaust valve in the preferred embodiment of the present invention (a valve plate and a housing are omitted);

[0046] Figure 2 It is a front view of the exhaust valve in the preferred embodiment of the present invention;

[0047] Figure 3 for Figure 2 Sectional view at AA in the middle;

[0048] Figure 4 A three-dimensional diagram of an exhaust valve in a preferred embodiment of the present invention;

[0049] Figure 5 It is a three-dimensional diagram of the exhaust valve in the preferred embodiment of the present invention (two valve plates are omitted);

[0050] Figure 6 A top view of an exhaust valve in a preferred embodiment of the present invention;

[0051] Figure 7 for Figure 6 Sectional view at the middle BB;

[0052] Figure 8 It is a top view of the exhaust valve in a preferred embodiment of the present invention (housing is omitted);

[0053] Fig. 9 for Figure 8 Sectional view at CC;

[0054] Fig.10 A rear view of an exhaust valve in a preferred embodiment of the present invention;

[0055] Fig.11 for Fig.10 Sectional view at DD in the middle;

[0056] Fig.12 It is a stereoscopic diagram of a transformer in a preferred embodiment of the present invention. DETAILED DESCRIPTION

[0057] The technical solutions of the embodiments of the present invention are explained and described below in conjunction with the drawings of the embodiments of the present invention, but the following embodiments are only preferred embodiments of the present invention, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the protection scope of the present invention.

[0058] See also Figure 1 , Figure 2 and Figure 3 , the exhaust valve includes:

[0059] The valve body 1 comprises a body 101 and a substrate 102. The substrate 102 is provided with at least one exhaust port 111. The body 101 is provided with an exhaust channel 11. The substrate 102 is provided on the body 101 and extends from the body 101 toward the center of the exhaust channel 11. The exhaust channel 11 is provided with a medium inlet 113 and a medium outlet 114. All the exhaust ports 111 are located between the medium inlet 113 and the medium outlet 114.

[0060] At least one valve plate 2, each valve plate 2 is movably disposed on the valve body 1 and is used to open or close one of the exhaust ports 111;

[0061] The base plate 102 is provided with a guide member 112 for guiding the medium to flow toward the exhaust port 111 ; the valve body 1 is provided with a detachable base 103 , and when the base 103 is arranged on the valve body 1 , the base 103 and the valve body 1 form a mounting hole 1031 for mounting the valve plate 2 .

[0062] In other embodiments of the present invention, a guide member for guiding the medium to flow toward the exhaust port is provided on the substrate; or a detachable base is provided on the substrate, and when the base is provided on the substrate, the base and the substrate form a mounting hole for mounting the valve plate.

[0063] Preferably, the base 103 is detachably mounted on the substrate 102. When the base 103 is mounted on the substrate 102, the base 103 and the substrate 102 form a mounting hole 1031 for mounting the valve plate 2. In other embodiments of the present invention, a detachable base is provided on the body; the base is detachably mounted on the substrate and the body.

[0064] In the present invention, each valve plate 2 is movably arranged on the valve body 1. This structure omits the connecting rod to simplify the structure of the exhaust valve. A guide 112 for guiding the medium to flow toward the exhaust port 111 is provided on the substrate 102. When the guide 112 for guiding the medium to flow toward the exhaust port 111 is provided on the substrate 102, the guide 112 can reduce the time the medium stays in the exhaust valve. This structure is used to solve the problem of poor smoke exhaust effect of the exhaust valve. A detachable base 103 is provided on the valve body 1. When the base 103 is provided on the valve body 1, the base 103 and the valve body 1 form a mounting hole 1031 for mounting the valve plate 2; in other words, after the base 103 is removed from the substrate 102, the valve plate 2 can be removed from the valve body 1. This structure is used to solve the problem of difficult disassembly and assembly of the exhaust valve.

[0065] See also Figure 5 , Figure 6 and Figure 7 The exhaust valve further comprises a transformer tube 3, on which a transformer channel 31 is provided, and the transformer tube 3 is detachably provided in the exhaust channel 11, and the transformer tube 3 comprises a pressure taking section 302 and a transformer section, and the transformer section is a gradually expanding section 303, and the cross-sectional area of ​​the pressure taking section 302 is different from the cross-sectional area of ​​the gradually expanding section 303, and the gradually expanding section 303 is located between the pressure taking section 302 and all the exhaust ports 111. In other embodiments of the present invention, the transformer section is a gradually contracting section; or, the transformer section is a straight section.

[0066] In the present invention, the transformer 3 includes a pressure taking section 302 and a gradually expanding section 303. The cross-sectional area of ​​the pressure taking section 302 is different from the cross-sectional area of ​​the gradually expanding section 303. The gradually expanding section 303 is located between the pressure taking section 302 and all the exhaust ports 111. When the cross-sectional area of ​​the pressure taking section 302 is different from the cross-sectional area of ​​the gradually expanding section 303, and the gradually expanding section 303 is located between the pressure taking section 302 and all the exhaust ports 111, at least one of the pressure taking section 302, the pressure transformer section 303 and the exhaust ports 111 produces a Venturi effect.

[0067] In this embodiment, the cross-sectional area of ​​the transformer channel 31 at the pressure-taking section 302 is A, and the sum of the cross-sectional areas of all exhaust ports 111 is B, A>B, and AB≤0.35B; when A>B, the pressure at A>the pressure at B, so as to achieve the adsorption force at the exhaust port>the adsorption force at the transformer channel A; this structure enables the adsorption force of the exhaust valve at its exhaust port 111 to reach the maximum, so as to minimize the retention of the medium at the transformer tube 3.

[0068] See also Figure 3 , the exhaust channel 11 is provided with a medium inlet 113 on one side of the valve body 1, and all exhaust ports 111 are provided on the other side of the valve body 1 on the exhaust channel 11. The transformer tube 3 is inserted into the exhaust channel 11 through the medium inlet 113. When the exhaust valve is installed in a building, the transformer tube 3 can exit the exhaust channel 11 through the medium inlet 113. This structure has the following advantages:

[0069] 1. It can reduce the number of exhaust valve specifications required for the same building; exhaust valves on different floors can use uniform specifications, and only by setting different transformers 3, the problem of different smoke exhaust difficulties in residences on different floors can be solved;

[0070] 2. After the exhaust valve is installed, its smoke exhaust effect is changed by the transformer tube 3; the transformer tube 3 is arranged in front of the exhaust port 111. Therefore, there is no need to disassemble the exhaust valve, and the transformer tube 3 can be installed or replaced with the assistance of external tools. In other words, the transformer tube 3 is particularly suitable for the exhaust valve modification in old communities.

[0071] See also Figure 5 , Figure 6 and Figure 7 The transformer tube 3 is fixedly connected to the valve body 1 through the sealing ring 304, and the sealing ring 304 is located between the gradually expanding section 303 and all the exhaust ports 111; when the transformer tube 3 is fixedly connected to the valve body 1 through the sealing ring 304, and the sealing ring 304 is located between the gradually expanding section 303 and all the exhaust ports 111, the transformer tube 3 and the exhaust channel 11 form a second cavity 10, and the sealing ring 304 separates the second cavity 10 from all the exhaust ports 111.

[0072] See also Fig.10 , Fig.11 and Fig.12 , the cross-sectional area of ​​the pressure-taking section 302 is different from the cross-sectional area of ​​the exhaust port 111, the cross-sectional area of ​​the gradually expanding section 303 is different from the cross-sectional area of ​​the exhaust port 111, the cross-sectional area of ​​the gradually expanding section 303 is greater than the cross-sectional area of ​​the pressure-taking section 302, and the cross-sectional area of ​​the exhaust port 111; when the cross-sectional area of ​​the gradually expanding section 303 is greater than the cross-sectional area of ​​the pressure-taking section 302, and the cross-sectional area of ​​the exhaust port 111, the pressure of the gradually expanding section 303 is greater than the pressure of the pressure-taking section 302, and the pressure of the exhaust port 111. According to Bernoulli's principle, a negative pressure will be formed at the exhaust port 111, that is, the medium will produce a Venturi effect at the exhaust port 111.

[0073] See also Figure 8 , Fig. 9 and Fig.12, the outer wall of the transformer tube 3 is provided with a mounting groove 33, and the mounting groove 33 can be used to install a sealing ring 304. When the transformer tube 3 is fixedly connected to the valve body 1 through the sealing ring 304, the sealing ring 304 is located between the outer wall of the transformer tube 3 and the wall of the exhaust passage 11; when the sealing ring 304 is located between the outer wall of the transformer tube 3 and the wall of the exhaust passage 11, the transformer tube 3 will be difficult to move axially relative to the valve body 1. In other embodiments of the present invention, when the transformer tube is fixedly connected to the valve body through the sealing ring, the sealing ring is located between the side wall of the transformer tube and the side wall of the substrate; or, when the transformer tube is fixedly connected to the valve body through the sealing ring, the sealing ring is located between the outer wall of the transformer tube and the wall of the exhaust passage, and when the transformer tube is fixedly connected to the valve body through the sealing ring, the sealing ring is located between the side wall of the transformer tube and the side wall of the substrate.

[0074] Preferably, a pressure relief groove 3032 is provided on the side wall of the transformer 3. The pressure relief groove 3032 is used to reduce the resistance when the transformer 3 and the substrate 102 are separated.

[0075] See also Figure 4 , Figure 7 and Fig.11 The transformer 3 further comprises a tapered section 301, a pressure-taking section 302 is arranged between the tapered section 301 and the gradually expanding section 303, a convex rib 3031 extending outward is arranged on the gradually expanding section 303, and a sealing ring 304 is arranged between the convex rib 3031 and the valve body 1; wherein the cross-sectional area of ​​the tapered section 301 is greater than the cross-sectional area of ​​the pressure-taking section 302 and greater than the cross-sectional area of ​​the exhaust port 111. When the gradually expanding section 303 is provided with the convex rib 3031 extending outward, the convex rib 3031 is used to increase the anti-deformation capability of the gradually expanding section 303.

[0076] In the present invention, the transformer 3 may also include other structures. For example, in other embodiments of the present invention, the transformer includes a tapered section and a pressure-taking section connected in sequence; or, the transformer includes a pressure-taking section and a gradually expanding section connected in sequence; or, the transformer includes a gradually expanding section, a pressure-taking section and a tapered section connected in sequence; or, the transformer includes a tapered section, a pressure-taking section, a gradually expanding section and a connecting section connected in sequence.

[0077] In the present invention, when the cross-sectional area of ​​the tapered section 301 is greater than the cross-sectional area of ​​the pressure-taking section 302 and greater than the cross-sectional area of ​​the exhaust port 111, the pressure of the tapered section 301 is greater than the pressure of the pressure-taking section 302 and greater than the pressure of the exhaust port 111. According to Bernoulli's principle, a negative pressure will be formed at the exhaust port 111, that is, the medium will produce a Venturi effect at the exhaust port 111.

[0078] Preferably, Fig.12As shown, the axial dimension of the tapered section 301 gradually decreases, the axial dimension of the pressure-taking section 302 remains unchanged, and the axial dimension of the gradually expanding section 303 gradually increases. In other embodiments of the present invention, the axial dimension of the tapered section far from one end of the pressure-taking section is greater than the axial dimension of the tapered section near one end of the pressure-taking section; or, the axial dimension of the gradually expanding section far from one end of the pressure-taking section is greater than the axial dimension of the gradually expanding section near one end of the pressure-taking section.

[0079] See also Figure 7 The tapered section 301 is provided with a protrusion 3011 extending outward, at least part of the protrusion 3011 is located on the outside of the rib 3031, when the sealing ring 304 is arranged between the rib 3031 and the valve body 1, the protrusion 3011 abuts against the side wall of the valve body 1; the protrusion 3011 is used to increase the deformation resistance of the tapered section 301, when the protrusion 3011 abuts against the side wall of the valve body 1, the protrusion 3011 can be used to limit the axial position of the transformer 3 on the valve body 1.

[0080] See also Fig.10 and Fig.11 When a detachable base 103 is provided on the base plate 102, the base 103 is fixedly connected to the base plate 102 by screws (not marked). This structure facilitates the replacement of the valve plate 2.

[0081] See also Figure 7 and Fig.12 , at least one of the transformer 3 and the valve body 1 is provided with a mounting channel 34. When the transformer 3 is provided in the exhaust channel 11, and the transformer 3 and the valve body 1 are fixedly connected by the sealing ring 304, the sealing ring 304 and the mounting channel 34 are located on both sides of the transformer 3. Specifically: in this embodiment, the mounting channel 34 is provided in the transformer 3. In the present invention, the mounting channel 34 can make the second cavity 10 communicate with the external environment, that is, the second cavity 10 obtains the ambient air pressure; the mounting channel 34 can also be used to place the data line of the ambient air pressure sensor 8; when the sealing ring 304 and the mounting channel 34 are located on both sides of the transformer 3, by setting the mounting channel 34 at a position away from the sealing ring 304, the reliability of the sealing ring 304 can be increased.

[0082] See also Figure 6 The valve body 1 is provided with a connecting portion 12, which includes a vertically arranged guide section and a horizontally arranged locking section, and the guide section is connected with the locking section.

[0083] See also Figure 3 , Figure 4 and Figure 7 At least part of the pressure-changing channel 31 corresponds to the exhaust port 111 , and a sealing ring 25 is provided on the valve plate 2 ; the valve plate 2 abuts against the valve body 1 through the sealing ring 25 , so that the valve plate 2 closes the exhaust port 111 .

[0084] See also Figure 7 , Figure 8and Fig. 9 A pressure taking hole 32 is provided on the pressure taking section 302 , a real-time air pressure sensor 7 is provided in the pressure taking hole 32 , and an ambient air pressure sensor 8 is provided between the transformer tube 3 and the exhaust passage 11 .

[0085] See also Fig.11 The exhaust valve further includes a driver 4 , which is disposed on the valve body 1 , and the driver 4 directly or indirectly drives the valve plate 2 to rotate relative to the valve body 1 .

[0086] In the present invention, the exhaust valve also includes a driver 4, a transmission mechanism 5 and a limit mechanism (not marked), the transmission mechanism 5 includes a driving gear, a driven gear and at least one intermediate gear, the driving gear is arranged on the driver 4, the driving gear is meshed with an intermediate gear, one of the intermediate gears is meshed with the driven gear, the driven gear is arranged on one of the valve plates 2, after the driver 4 drives an intermediate gear to rotate through the driving gear, one of the intermediate gears drives the driven gear to rotate, so that the driven gear drives the valve plate 2 to move relative to the valve body 1; the limit mechanism includes a limit shaft, a limit groove, a first limit switch and a second limit switch, the limit shaft is arranged on the driven gear, and the valve body also includes a plate body, a limit groove, a first limit switch and a second limit switch It is arranged on the plate body, and the limit shaft is inserted in the limit groove. The driven gear drives the limit shaft to move along the limit groove to control the opening of each valve plate 2 relative to one of the exhaust ports 111 (the opening of the exhaust port 111 is the rotation angle of the valve plate 2 relative to the valve body 1); the first limit switch and the second limit switch are arranged on the plate body on both sides of the limit groove, and the first limit switch and the second limit switch are electrically connected to the controller 6 respectively. The driven gear drives the limit shaft to move along the limit groove, so that the limit shaft can contact the first limit switch or the second limit switch. When the limit shaft contacts the first limit switch or the second limit switch, the first limit switch or the second limit switch will transmit an electrical signal to the controller 6, so that the controller 6 controls the driver 4 to work or stop working. In other embodiments of the present invention, the limit mechanism includes a limit shaft and a limit groove, the limit shaft is arranged on the valve body, and the limit groove is arranged on the intermediate gear or the driven gear; or, the limit mechanism includes a limit shaft, a first limit switch and a second limit switch, the limit shaft is arranged on the driven gear, the first limit switch and the second limit switch are arranged on the valve body, and the first limit switch and the second limit switch are electrically connected to the controller respectively; or, the limit mechanism includes an encoder, the encoder is arranged on the driver, and the encoder is electrically connected to the controller; or, the limit mechanism includes a limit shaft and a limit groove, the limit shaft is arranged on the driven gear, the valve body also includes a plate body, the limit groove is arranged on the plate body, the limit shaft is inserted in the limit groove, and the driven gear drives the limit shaft to move along the limit groove.

[0087] In addition, in other embodiments of the present invention, there can be one intermediate gear or two intermediate gears; or, the transmission mechanism includes a driving gear and a driven gear, the driving gear is arranged on the driver, and the driven gear is arranged on the valve plate; or, the transmission mechanism includes a driving wheel, and the valve plate is arranged on the driving wheel; or, the driver can be a motor, the transmission mechanism includes a gear and a rack, the rack is arranged on the valve plate, and the gear is arranged on the driver; or, the driver includes two motors, the transmission mechanism includes a chain, one end of the chain is arranged on one motor, the other end of the chain is arranged on the other motor, and the valve plate is arranged on the chain; or, the transmission mechanism includes one or two gears.

[0088] See also Figure 1 , Figure 3 and Fig.10 , at least one first magnetic member 16 is provided on the valve body 1, and at least one second magnetic member 23 is provided on the valve plate 2. When each valve plate 2 is movably arranged on the valve body 1 to close one of the exhaust ports 111, the second magnetic member 23 is adsorbed on the first magnetic member 16; the first magnetic member 16 and the second magnetic member 23 are used to ensure the reliability of the valve plate 2 closing the exhaust port 111. Specifically: at least one first step hole 104 is provided on the valve body 1, and the first step hole 104 is provided with a first magnetic member 16. The first step hole 104 includes a first step arranged vertically. The valve body 2 has a first step surface 1041, the first magnetic member 16 can abut against the first step surface 1041, and the first step surface 1041 faces away from the valve plate 2; the valve plate 2 is provided with at least one second step hole 24, the second step hole 24 is provided with a second magnetic member 23, the second step hole 24 includes a second step surface (not marked) arranged vertically, the second magnetic member 23 can abut against the second step surface, and the second step surface faces away from the transformer 3; when each valve plate 2 is movably arranged on the valve body 1 to close one of the exhaust ports 111, the second magnetic member 23 is adsorbed on the first magnetic member 16. The first step surface 1041 and the second step surface are used for positioning, and for increasing the connection strength between the first magnetic member 16 and the second magnetic member 23.

[0089] In other embodiments of the present invention, at least one first step hole is provided on the valve body, the first step hole is provided with a first magnetic component, the first step hole includes a vertically arranged first step surface, the first magnetic component can abut the first step surface, and the first step surface is facing away from the valve plate; at least one second magnetic component is provided on the valve plate, when each valve plate is movably arranged on the valve body to close one of the exhaust ports, the second magnetic component is adsorbed on the first magnetic component; or, at least one first magnetic component is provided on the valve body; at least one second step hole is provided on the valve plate, the second step hole is provided with a second magnetic component, the second step hole includes a vertically arranged second step surface, the second magnetic component can abut the second step surface, and the second step surface is facing away from the transformer; when each valve plate is movably arranged on the valve body to close one of the exhaust ports, the second magnetic component is adsorbed on the first magnetic component.

[0090] See also Fig.10 and Fig.11 The exhaust valve includes a driver 4, at least one valve plate 2 includes two valve plates 2, one of which is provided with a driving shaft 21 detachably arranged on the valve body 1, and the driving shaft 21 is provided with a first gear 211, and the other valve plate 2 is provided with a driven shaft 22 detachably arranged on the valve body 1, and the driven shaft 22 is provided with a second gear 221 meshing with the first gear 211, wherein the driving shaft 21 is directly or indirectly connected to the driver 4, when the driver 4 is working, the driver 4 will drive the driving shaft 21 to rotate, during the rotation of the driving shaft 21, the first gear 211 drives the second gear 221 to rotate, so that the two valve plates 2 rotate synchronously relative to the valve body 1.

[0091] In the present invention, when the first gear 211 is meshed with the second gear 221, the driving shaft 21 and the driven shaft 22 will move synchronously to achieve the same opening of the two valve plates 2. When the openings of the two valve plates 2 are the same, the pressures from the medium on the two valve plates 2 are substantially the same. This structure prevents the pressure difference between different exhaust ports 111 from being too large, which results in the exhaust port 111 with a larger pressure value being unable to be opened.

[0092] See also Figure 7 , Fig. 9 and Fig.11 , the exhaust valve also includes:

[0093] A real-time air pressure sensor 7, used to detect the real-time air pressure value;

[0094] A driver 4, which is arranged on the valve body 1;

[0095] A transmission mechanism 5, wherein at least one valve plate 2 is connected to a driver 4 via the transmission mechanism 5;

[0096] The controller 6 and the real-time air pressure sensor 7 are electrically connected to the controller 6. After the real-time air pressure sensor 7 converts the detected real-time air pressure value into an electrical signal and transmits it to the controller 6, the controller 6 controls the driver 4 to work or stop working;

[0097] After the controller 6 controls the driver 4 to work, the driver 4 drives all valve plates 2 to move relative to the valve body 1 through the transmission mechanism 5 to change the opening of each valve plate 2 relative to one of the exhaust ports 111 .

[0098] Specifically, the preferred structures of the exhaust valve include the following three types:

[0099] In a first preferred structure, the exhaust valve further comprises:

[0100] A real-time air pressure sensor 7, used to detect the real-time air pressure value;

[0101] Ambient air pressure sensor 8, used to detect the ambient air pressure value;

[0102] A driver 4, wherein the driver 4 is disposed on the valve body 1;

[0103] A transmission mechanism 5, wherein at least one valve plate 2 is connected to a driver 4 via the transmission mechanism 5;

[0104] The controller 6, the real-time air pressure sensor 7 and the ambient air pressure sensor 8 are electrically connected to the controller 6 respectively. After the real-time air pressure sensor 7 converts the detected real-time air pressure value into an electrical signal and transmits it to the controller 6, and the ambient air pressure sensor 8 converts the detected ambient air pressure value into an electrical signal and transmits it to the controller 6, the controller 6 controls the driver 4 to work or stop working according to the difference between the real-time air pressure value and the ambient air pressure value;

[0105] After the controller 6 controls the driver 4 to work, the driver 4 drives all valve plates 2 to move relative to the valve body 1 through the transmission mechanism 5, so as to change the opening of each valve plate 2 relative to one of the exhaust ports 111;

[0106] In the second preferred structure, the exhaust valve further comprises:

[0107] A real-time air pressure sensor 7, used to detect the real-time air pressure value;

[0108] Ambient air pressure sensor 8, used to detect the ambient air pressure value;

[0109] A driver 4, wherein the driver 4 is disposed on the valve body 1;

[0110] A transmission mechanism 5, wherein at least one valve plate 2 is connected to a driver 4 via the transmission mechanism 5;

[0111] The controller 6 presets a standard deviation value, the real-time air pressure sensor 7 and the ambient air pressure sensor 8 are electrically connected to the controller 6 respectively, after the real-time air pressure sensor 7 converts the detected real-time air pressure value into an electrical signal and transmits it to the controller 6, and the ambient air pressure sensor 8 converts the detected ambient air pressure value into an electrical signal and transmits it to the controller 6, the controller 6 obtains a real-time difference value through the real-time air pressure value and the ambient air pressure value, and the controller 6 controls the driver 4 to work or stop working according to the difference between the real-time difference value and the standard deviation value;

[0112] After the controller 6 controls the driver 4 to work, the driver 4 drives all valve plates 2 to move relative to the valve body 1 through the transmission mechanism 5, so as to change the opening of each valve plate 2 relative to one of the exhaust ports 111;

[0113] In a third preferred structure, the exhaust valve further comprises:

[0114] A real-time air pressure sensor 7, used to detect the real-time air pressure value;

[0115] A driver 4, wherein the driver 4 is disposed on the valve body 1;

[0116] A transmission mechanism 5, wherein at least one valve plate 2 is connected to a driver 4 via the transmission mechanism 5;

[0117] The controller 6 has a preset standard value, and the real-time air pressure sensor 7 is electrically connected to the controller 6. After the real-time air pressure sensor 7 converts the detected real-time air pressure value into an electrical signal and transmits it to the controller 6, the controller 6 controls the driver 4 to work or stop working according to the difference between the real-time air pressure value and the standard value;

[0118] After the controller 6 controls the driver 4 to work, the driver 4 drives all valve plates 2 to move relative to the valve body 1 through the transmission mechanism 5 to change the opening of each valve plate 2 relative to one of the exhaust ports 111 .

[0119] In the present invention, the controller 6 can compare the real-time pressure value of the real-time pressure sensor 7 with at least one of the ambient pressure value of the ambient pressure sensor 8, the preset standard deviation value of the controller 6, and the preset standard value of the controller 6 to output the control signal of the driver 4. This structure enables the controller to control the opening of the exhaust port 111 on different floors. In the present invention, the driver 4 is a motor. In other embodiments of the present invention, the driver is a cylinder; or, the driver is an oil cylinder.

[0120] The exhaust valve of this embodiment is used in an exhaust volume balanced distribution system, that is, the exhaust volume balanced distribution system includes a flue and at least two exhaust valves, each exhaust valve is arranged in the flue.

[0121] The above is only a specific embodiment of the present invention, but the protection scope 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 drawings and the above specific embodiments. Any modification that does not deviate from the functional and structural principles of the present invention will be included in the scope of the claims.

Claims

1. Exhaust valve, characterized in that include: A valve body, wherein the valve body comprises a main body and a substrate, wherein the substrate is provided with at least one exhaust port, wherein the main body is provided with an exhaust channel, wherein the substrate is provided on the main body and extends from the main body toward the center of the exhaust channel, wherein the exhaust channel is provided with a medium inlet and a medium outlet, and wherein all the exhaust ports are located between the medium inlet and the medium outlet; At least one valve plate, each valve plate is movably disposed on the valve body and is used to open or close one of the exhaust ports; Wherein, the substrate is provided with a guide member for guiding the medium to flow toward the exhaust port; and / or, the valve body is provided with a detachable base, and when the base is arranged on the valve body, the base and the valve body form a mounting hole for mounting the valve plate.

2. The exhaust valve according to claim 1, characterized in that The exhaust valve also includes a transformer tube, on which a pressure transformation channel is provided. The transformer tube is detachably arranged in the exhaust channel. The transformer tube includes a pressure taking section and a pressure transformation section. The cross-sectional area of ​​the pressure taking section is different from the cross-sectional area of ​​the pressure transformation section. The pressure transformation section is located between the pressure taking section and all exhaust ports.

3. The exhaust valve according to claim 2, characterized in that The transformer tube is fixedly connected to the valve body via a sealing ring, and the sealing ring is located between the transformer section and all exhaust ports; And / or, the cross-sectional area of ​​the pressure taking section is different from the cross-sectional area of ​​the exhaust port, the cross-sectional area of ​​the voltage transformation section is different from the cross-sectional area of ​​the exhaust port, and the cross-sectional area of ​​the voltage transformation section>the cross-sectional area of ​​the pressure taking section>the cross-sectional area of ​​the exhaust port.

4. The exhaust valve according to claim 3, characterized in that When the transformer tube is fixedly connected to the valve body via a sealing ring, the sealing ring is located between the outer wall of the transformer tube and the wall of the exhaust passage; and / or a pressure relief groove is provided on the side wall of the transformer tube.

5. The exhaust valve according to claim 3, characterized in that The transformer tube further comprises a gradually contracting section, the transformer section is a gradually expanding section, the pressure taking section is arranged between the gradually contracting section and the gradually expanding section, a convex rib extending outward is arranged on the gradually expanding section, and the sealing ring is arranged between the convex rib and the valve body; The cross-sectional area of ​​the tapered section is greater than the cross-sectional area of ​​the pressure taking section and greater than the cross-sectional area of ​​the exhaust port.

6. The exhaust valve according to claim 5, characterized in that The tapered section is provided with a protrusion extending outward, at least part of which is located outside the convex rib, and when the sealing ring is arranged between the convex rib and the valve body, the protrusion abuts against the side wall of the valve body; And / or, the base is detachably provided on the substrate. When the substrate is provided with a detachable base, the base is fixedly connected to the substrate by screws.

7. The exhaust valve according to claim 3, characterized in that At least one of the transformer tube and the valve body is provided with a mounting channel. When the transformer tube is arranged in the exhaust channel and the transformer tube is fixedly connected to the valve body via a sealing ring, the sealing ring and the mounting channel are located on both sides of the transformer tube. And / or, a connecting portion is provided on the valve body, the connecting portion comprises a vertically arranged guide section and a transversely arranged locking section, and the guide section is connected with the locking section.

8. The exhaust valve according to claim 2, characterized in that At least part of the pressure-changing channel corresponds to the exhaust port, and a sealing ring is provided on the valve plate; Wherein, a pressure taking hole is provided on the pressure taking section, and a real-time air pressure sensor is provided in the pressure taking hole; and / or, an ambient air pressure sensor is provided between the transformer tube and the exhaust passage.

9. The exhaust valve according to claim 1, characterized in that The exhaust valve further comprises a driver, which is arranged on the valve body and directly or indirectly drives the valve plate to rotate relative to the valve body; Or, at least one first magnetic member is disposed on the valve body, and at least one second magnetic member is disposed on the valve plate, and when each valve plate is movably disposed on the valve body to close one of the exhaust ports, the second magnetic member is attracted to the first magnetic member; Or, the valve body is provided with at least one first step hole, the first step hole is provided with a first magnetic member, the first step hole includes a first step surface arranged vertically, the first magnetic member can abut against the first step surface, and the first step surface faces away from the valve plate; the valve plate is provided with at least one second magnetic member, when each valve plate is movably provided on the valve body to close one of the exhaust ports, the second magnetic member is adsorbed on the first magnetic member; Or, at least one second step hole is provided on the valve plate, the second step hole is provided with a second magnetic component, the second step hole includes a second step surface arranged vertically, the second magnetic component can abut the second step surface, and the second step surface is facing away from the transformer; at least one first magnetic component is provided on the valve body, and when each valve plate is movably arranged on the valve body to close one of the exhaust ports, the second magnetic component is adsorbed on the first magnetic component.

10. The exhaust valve according to any one of claims 1 to 7, characterized in that The exhaust valve further comprises: Real-time air pressure sensor, used to detect real-time air pressure value; A driver, wherein the driver is arranged on the valve body; A transmission mechanism, wherein at least one valve plate is connected to the driver through the transmission mechanism; A controller, wherein the real-time air pressure sensor is electrically connected to the controller, and after the real-time air pressure sensor converts the detected real-time air pressure value into an electrical signal and transmits it to the controller, the controller controls the driver to work or stop working; After the controller controls the driver to work, the driver drives all valve plates to move relative to the valve body through the transmission mechanism to change the opening of each valve plate relative to one of the exhaust ports.

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