Low-pressure large-flow double-spray valve

Abstract

The utility model discloses a low-pressure large-flow double-spray valve which comprises a valve body, an air inlet cavity and an air outlet cavity which are communicated with each other are arranged in the valve body, and a control piece capable of separating the air inlet cavity from the air outlet cavity is arranged in the valve body. A first air outlet channel and a second air outlet channel which are communicated with the air outlet cavity are arranged in the valve body. After the control piece controls the air inlet cavity and the air outlet cavity to be communicated, airflow is sprayed out of the first air outlet channel and the second air outlet channel, a high-pressure valve is omitted, safety is guaranteed, meanwhile, the air outlet flow is increased, and the problem that firepower is insufficient during commercial use is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of gas valves, in particular to a low-pressure and high-flow double-spray valve. Background Art

[0002] A gas stove is a kitchen appliance that uses liquefied petroleum gas (liquid), artificial coal gas, natural gas and other gas fuels for direct heating. The gas valve body is a core component of the gas stove. The user can control the gas valve to turn the gas on, off, high or low. Gas stoves are usually divided into household stoves and commercial stoves according to different usage scenarios.

[0003] Commercial stoves often require greater firepower when in use, and existing commercial stoves usually use high-pressure valves to increase firepower, but high-pressure valves are very risky and prone to explosion. However, the gas valve on existing household stoves uses a pressure reducing valve, which has a small flow rate when in use. When applied to commercial stoves, there will be a problem of insufficient firepower. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] The technical problem to be solved by the utility model is to provide a low-pressure and high-flow double-spray valve, wherein two air outlet channels are arranged on the valve body, thereby increasing the air outlet flow rate and solving the problem of insufficient firepower in commercial use.

[0006] (II) Technical solution

[0007] The solution adopted by the utility model to solve the above-mentioned technical problems is a low-pressure and high-flow double-spray valve, including a valve body, wherein an air inlet chamber and an air outlet chamber that are interconnected are arranged in the valve body, and a control member that can separate the air inlet chamber and the air outlet chamber is arranged in the valve body; wherein a first air outlet channel and a second air outlet channel that are interconnected with the air outlet chamber are arranged in the valve body.

[0008] In some embodiments, the valve body is provided with an air inlet channel communicating with the air inlet cavity, the air inlet channel is connected with an air source, and the first air outlet channel and the second air outlet channel are both connected with a burner.

[0009] By adopting the above scheme, after the control component controls the air inlet chamber and the air outlet chamber to be connected, air will be ejected from the first air outlet channel and the second air outlet channel. While the high-pressure valve is eliminated and safety is ensured, the air outlet flow rate is increased, solving the problem of insufficient firepower in commercial use.

[0010] In some embodiments, the control member is disposed in the air outlet cavity and can rotate around the axial direction of the air outlet cavity; a cavity is disposed in the control member, and the control member is provided with at least one first air vent connected to the cavity on its rotation path; and the first air vent is disposed near the connection between the air inlet cavity and the air outlet cavity, and can connect the air inlet cavity and the air outlet cavity.

[0011] By adopting the above scheme, after the control component is adapted to the air outlet cavity, the cavity inside the control component forms the air outlet cavity, that is, after the first air vent and the air inlet cavity are connected, the airflow entering from the air inlet cavity enters the cavity of the control component through the first air vent, and then flows to the first air outlet channel and the second air outlet channel.

[0012] In some embodiments, the cavity is provided with an open end connected to the first air outlet channel; the control member is provided with two first air vents arranged at intervals on its rotation path; the control member is provided with a second air vent connected to the cavity on its rotation path, the second air vent is arranged close to the air outlet cavity and the second air outlet channel, and can connect the air inlet cavity and the second air outlet channel; when the control member rotates to where one of the first air vents is connected to the air inlet cavity, the second air vent is connected to the second air outlet channel; when the control member rotates to where the other first air vent is connected to the air inlet cavity, the second air vent is not connected to the second air outlet channel.

[0013] In some embodiments, the apertures of the two first air vents are different; and when the control member is rotated to connect the first air vent with a smaller aperture to the air inlet cavity, the second air vent is not connected to the second air outlet channel; when the control member is rotated to connect the first air vent with a larger aperture to the air inlet cavity, the second air vent is connected to the second air outlet channel.

[0014] In some embodiments, the two first air holes are on the same rotation path of the control member, and the rotation path is circular; an angle of 80° is formed between the line connecting the two first air holes and the center of the circle; the second air hole and the first air hole with a larger aperture are symmetrically arranged on both sides of the control member.

[0015] In some embodiments, the aperture of the first air vent with a large aperture is smaller than the aperture at the connection between the air inlet cavity and the air outlet cavity, so that the airflow can completely enter the cavity of the control component, preventing the airflow from leaking at the end face of the first air vent, thereby improving the sealing performance; the control component is recessed around the first air vent with a small aperture to form a groove, and the first air vent with a small aperture is arranged at the bottom of the groove, the edge of the groove is circular, and the aperture is smaller than the aperture at the connection between the air inlet cavity and the air outlet cavity, so that the airflow can completely enter the cavity of the control component, and the setting of the groove allows the airflow entering from the air inlet cavity to be filled in the groove, preventing the airflow from directly rushing into the first air vent with a small aperture and causing a large impact force. It plays a buffering role and is safer.

[0016] By adopting the above scheme, in the initial state, the control member is in a state of closing the air inlet cavity and the air outlet cavity; after the control member is rotated 90° counterclockwise, the first air vent with a small aperture is connected with the air inlet cavity, and the airflow in the air inlet cavity enters its cavity through the first air vent, and then enters the first air outlet channel from the open end of the cavity, thereby realizing a small flow of air out of the first air outlet channel, that is, a low heat state; after continuing to rotate the control member counterclockwise by 80°, the first air vent with a large aperture is connected with the air inlet cavity, and at this time, the second air vent is connected with the second air outlet channel; the airflow in the air inlet cavity enters its cavity through the first air vent, and then enters the first air outlet channel from the open end of the cavity, and at the same time, there will be a second air vent entering the second air outlet channel, thereby realizing a dual-channel air outlet of the first air outlet channel and the second air outlet channel, and at the same time, due to the large aperture of the second air vent, a large flow of air out of the dual channels is realized, that is, a high heat state.

[0017] In some embodiments, the first air outlet channel is arranged along the axial direction of the air outlet cavity, the control member can partially extend into the first air outlet channel, and the portion of the control member extending into the first air outlet channel is provided with the open end; to ensure that after the first air vent with a small aperture is connected to the air inlet cavity, the air flow can completely enter the first air outlet channel.

[0018] In some embodiments, the control member is provided with the first vent hole, the second vent hole and the open end in sequence along its axial direction.

[0019] By adopting the above solution, the air outlet cavity is connected to the air inlet cavity, the second air outlet channel and the first air outlet channel in sequence along its axial direction.

[0020] In some embodiments, the central axis of the first air outlet channel or the second air outlet channel is inclined relative to the central axis of the air outlet cavity and can intersect with each other.

[0021] In some embodiments, the central axis of the first air outlet channel or the second air outlet channel intersects with the central axis of the air outlet cavity at an angle ∠α, and ∠α=60°±5°.

[0022] By adopting the above scheme, the airflow from the air inlet cavity can enter the air outlet cavity and then be directly discharged from the first air outlet channel or the second air outlet channel, so that the air outlet is smoother and the firepower is greater.

[0023] In some embodiments, the valve body is provided with a mounting opening communicating with the air outlet cavity, and one end of the control member can extend out of the mounting opening.

[0024] In some embodiments, the mounting port, the air outlet cavity, and the first air outlet channel are arranged along the same axial direction.

[0025] In some embodiments, a mating portion is provided at one end of the control member extending out of the mounting opening, and a control rod is connected to the mating portion.

[0026] In some embodiments, the matching portion includes a snap-fitting groove, and the control rod includes a snap-fitting portion that can be fitted into the snap-fitting groove to achieve a fixed connection between the control rod and the control member, so that the control member can be rotated by rotating the control rod.

[0027] In some embodiments, the valve body is provided with a mounting end surface formed on the periphery of the mounting port, and a mounting seat is connected to the mounting end surface; an open end is provided at one end of the mounting seat connected to the mounting end surface, and a through hole coaxially arranged with the mounting port is provided at the other end of the mounting seat, and a cavity connecting the open end and the through hole is provided in the mounting seat; the portion of the control member extending out of the mounting port is placed in the cavity, and the control rod can pass through the through hole to be connected to the mating portion.

[0028] In some embodiments, the valve body is provided with an ignition port communicating with the air inlet cavity.

[0029] (III) Beneficial effects

[0030] Compared with the prior art, the utility model designs a low-pressure and high-flow double spray valve.

[0031] (1) After the control element controls the air inlet cavity and the air outlet cavity to communicate with each other, the first air outlet channel and the second air outlet channel will both have airflow ejected, thereby eliminating the high-pressure valve, ensuring safety, and increasing the air outlet flow rate, thereby solving the problem of insufficient firepower in commercial use;

[0032] (2) In the initial state of the utility model, the control member is in a state of closing the air inlet cavity and the air outlet cavity; after the control member is rotated 90° counterclockwise, the first air vent with a small aperture is connected to the air inlet cavity, and the airflow in the air inlet cavity enters its cavity through the first air vent, and then enters the first air outlet channel from the open end of the cavity, thereby realizing a small-flow air outlet from the first air outlet channel, i.e., a low-heat state; after the control member is further rotated 80° counterclockwise, the first air vent with a large aperture is connected to the air inlet cavity, at this time, the second air vent is connected to the second air outlet channel; the airflow in the air inlet cavity enters its cavity through the first air vent, and then enters the first air outlet channel from the open end of the cavity, and at the same time, there will be a second air vent entering the second air outlet channel, thereby realizing a dual-channel air outlet from the first air outlet channel and the second air outlet channel, and at the same time, due to the large aperture of the second air vent, a large-flow air outlet from the dual channels is realized, i.e., a high-heat state;

[0033] (3) The utility model arranges the central axis of the first air outlet channel or the second air outlet channel to be inclined relative to the central axis of the air outlet cavity and to be able to intersect with each other; it enables the airflow from the air inlet cavity to enter the air outlet cavity and then be directly discharged from the first air outlet channel or the second air outlet channel, so that the air outlet is smoother and the firepower is greater. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0035] Figure 1 This is a structural schematic diagram of a low-pressure, high-flow dual-spray valve of the utility model;

[0036] Figure 2 This is a schematic structural diagram of the low-pressure and high-flow dual-spray valve of the utility model from another angle;

[0037] Figure 3 for Figure 2 Sectional view at AA;

[0038] Figure 4 for Figure 2 Cross-sectional view at the middle BB (when the first vent hole with a large aperture is connected to the air inlet cavity);

[0039] Figure 5 It is a cross-sectional view of the valve body of the utility model;

[0040] Figure 6It is a cross-sectional view of the low-pressure and high-flow dual-spray valve of the utility model when the first vent hole with a small aperture is connected to the air inlet cavity;

[0041] Figure 7 It is a structural schematic diagram of the control component of the utility model;

[0042] Figure 8 This is a schematic structural diagram of the control component of the utility model from another angle;

[0043] Fig. 9 It is an exploded view of the low-pressure and high-flow double-spray valve of the utility model.

[0044] The names of the components corresponding to the various figure marks in the figure are: 100, valve body; 101, air inlet cavity; 102, air outlet cavity; 103, first air outlet channel; 104, second air outlet channel; 105, installation port; 106, installation end surface; 107, ignition port; 108, air inlet channel; 200, control member; 201, cavity; 202, first air vent; 203, open end; 204, second air vent; 205, matching part; 205a, snap-fit ​​groove; 206, groove; 300, control rod; 301, snap-fit ​​part; 400, mounting seat; 401, open end; 402, through hole; 403, cavity. DETAILED DESCRIPTION

[0045] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0046] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0047] The following describes the implementation methods of the present application through specific examples, and those skilled in the art can easily understand other advantages and effects of the present application from the contents disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The present application can also be implemented or applied through other different specific implementation methods, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present application. It should be noted that, in the absence of conflict, the following embodiments and the features in the embodiments can be combined with each other. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work belong to the scope of protection of the present application.

[0048] It should be noted that various aspects of the embodiments within the scope of the appended claims are described below. It should be apparent that the aspects described herein can be embodied in a wide variety of forms, and any specific structure and / or function described herein is merely illustrative. Based on the present application, it should be understood by those skilled in the art that an aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number and aspect described herein can be used to implement the device and / or practice the method. In addition, other structures and / or functionalities other than one or more of the aspects described herein can be used to implement this device and / or practice this method.

[0049] It should also be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present application. The drawings only show components related to the present application rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0050] Additionally, in the following description, specific details are provided to facilitate a thorough understanding of the examples. However, it will be understood by those skilled in the art that the examples can be practiced without these specific details.

[0051] The technical solutions provided by various embodiments of the present application are described below in conjunction with the accompanying drawings.

[0052] like Figure 1-Figure 9As shown, the utility model provides a low-pressure, high-flow dual-spray valve, including a valve body 100, wherein the valve body 100 is provided with an air inlet chamber 101 and an air outlet chamber 102 that are interconnected, and the valve body 100 is provided with a control member 200 that can separate the air inlet chamber 101 from the air outlet chamber 102; wherein, the valve body 100 is provided with a first air outlet passage 103 and a second air outlet passage 104 that are interconnected with the air outlet chamber 102. In some embodiments, the valve body 100 is provided with an air inlet passage 108 that is connected with the air inlet chamber 101, the air inlet passage 108 is connected with an air source, and the first air outlet passage 103 and the second air outlet passage 104 are both connected with a burner. By adopting the above scheme, after the control component 200 controls the air inlet chamber 101 and the air outlet chamber 102 to be connected, air will be ejected from the first air outlet channel 103 and the second air outlet channel 104. While the high-pressure valve is eliminated and safety is ensured, the air outlet flow rate is increased, solving the problem of insufficient firepower in commercial use.

[0053] In some embodiments, the control member 200 is disposed in the outlet cavity 102 and can rotate around the axial direction of the outlet cavity 102; a cavity 201 is disposed in the control member 200, and two first vents 202 communicating with the cavity 201 are disposed on the rotation path of the control member 200; and the first vents 202 are disposed near the connection between the inlet cavity 101 and the outlet cavity 102, and can communicate with the inlet cavity 101 and the outlet cavity 102. With the above solution, after the control member 200 is adapted to the outlet cavity 102, the cavity 201 in the control member 200 forms the outlet cavity 102, that is, after the first vents 202 and the inlet cavity 101 are communicated, the airflow entering from the inlet cavity 101 enters the cavity 201 of the control member 200 via the first vents 202, and then flows to the first outlet channel 103 and the second outlet channel 104. In some embodiments, the cavity 201 is provided with an open end 203 connected to the first air outlet channel 103; the control member 200 is provided with two first air vents 202 arranged at intervals on its rotation path; the control member 200 is provided with a second air vent 204 connected to the cavity 201 on its rotation path, the second air vent 204 is arranged close to the air outlet cavity 102 and the second air outlet channel 104, and can connect the air inlet cavity 101 and the second air outlet channel 104; when the control member 200 rotates to where one of the first air vents 202 is connected to the air inlet cavity 101, the second air vent 204 is connected to the second air outlet channel 104; when the control member 200 rotates to where the other first air vent 202 is connected to the air inlet cavity 101, the second air vent 204 is not connected to the second air outlet channel 104. In some embodiments, the apertures of the two first vents 202 are different; and when the control member 200 rotates to the point where the first vent 202 with a smaller aperture is in communication with the air inlet cavity 101, the second vent 204 is not in communication with the second air outlet channel 104; when the control member 200 rotates to the point where the first vent 202 with a larger aperture is in communication with the air inlet cavity 101, the second vent 204 is in communication with the second air outlet channel 104. In some embodiments, the two first vents 202 are on the same rotation path of the control member 200, and the rotation path is circular; an angle of 80° is formed between the line connecting the two first vents 202 and the center of the circle; the second vent 204 and the first vent 202 with a larger aperture are symmetrically arranged on both sides of the control member 200.In some embodiments, the aperture of the first air vent 202 with a large aperture is smaller than the aperture at the connection between the air inlet cavity 101 and the air outlet cavity 102, so that the airflow can completely enter the cavity 201 of the control component 200, preventing the airflow from leaking at the end face of the first air vent 202, thereby improving the sealing performance; the control component 200 is recessed to form a groove 206 around the first air vent 202 with a small aperture, and the first air vent 202 with a small aperture is arranged at the bottom of the groove 206, the edge of the groove 206 is circular, and the aperture is smaller than the aperture at the connection between the air inlet cavity 101 and the air outlet cavity 102, so that the airflow can completely enter the cavity 201 of the control component 200, and the arrangement of the groove 206 enables the airflow entering from the air inlet cavity 101 to be filled in the groove 206, preventing the airflow from directly rushing into the first air vent 202 with a small aperture, causing a problem of large impact force, playing a buffering role, and being safer. By adopting the above scheme, in the initial state, the control member 200 is in a state of closing the air inlet cavity 101 and the air outlet cavity 102; after the control member 200 is rotated counterclockwise by 90°, the first air vent 202 with a small aperture is connected to the air inlet cavity 101, and the airflow in the air inlet cavity 101 enters its cavity 201 through the first air vent 202, and then enters the first air outlet channel 103 through the open end 203 of the cavity 201, so that the first air outlet channel 103 has a small air flow rate, that is, a low-temperature state; after the control member 200 is further rotated counterclockwise by 80°, the first air vent 202 with a large aperture is connected to the air inlet cavity 101, and the airflow in the air inlet cavity 101 enters its cavity 201 through the first air vent 202, and then enters the first air outlet channel 103 through the open end 203 of the cavity 201, so that the first air outlet channel 103 has a small air flow rate, that is, a low-temperature state. A vent hole 202 is connected to the air inlet cavity 101, and at this time, the second air vent hole 204 is connected to the second air outlet channel 104; the airflow in the air inlet cavity 101 enters its cavity 201 through the first air vent hole 202, and then enters the first air outlet channel 103 from the open end 203 of the cavity 201. At the same time, there will be a second air vent hole 204 entering the second air outlet channel 104, realizing dual-channel air outlet of the first air outlet channel 103 and the second air outlet channel 104. At the same time, due to the large aperture of the second air vent hole 204, dual-channel large-flow air outlet, i.e., high-fire state, is realized.

[0054] In some embodiments, the first air outlet channel 103 is arranged along the axial direction of the air outlet cavity 102, and the control member 200 can partially extend into the first air outlet channel 103, and the portion of the control member 200 extending into the first air outlet channel 103 is provided with the open end 203; to ensure that after the first air vent 202 with a small aperture is connected to the air inlet cavity 101, the air flow can completely enter the first air outlet channel 103. In some embodiments, the control member 200 is provided with the first air vent 202, the second air vent 204 and the open end 203 in sequence along its axial direction. With the above solution, the air outlet cavity 102 is connected to the air inlet cavity 101, the second air outlet channel 104 and the first air outlet channel 103 in sequence along its axial direction.

[0055] In some embodiments, the central axis of the second air outlet channel 104 is inclined relative to the central axis of the air outlet cavity 102 and can intersect with each other. In some embodiments, the central axis of the second air outlet channel 104 and the central axis of the air outlet cavity 102 intersect at ∠α, and ∠α=60°. With the above scheme, the airflow from the air inlet cavity 101 can enter the air outlet cavity 102 and then be directly discharged from the first air outlet channel 103 or the second air outlet channel 104, so that the air outlet is smoother, thereby increasing the firepower.

[0056] In some embodiments, the valve body 100 is provided with a mounting port 105 communicating with the air outlet cavity 102, and one end of the control member 200 can extend out of the mounting port 105. In some embodiments, the mounting port 105, the air outlet cavity 102, and the first air outlet channel 103 are arranged along the same axial direction. In some embodiments, a matching portion 205 is provided at one end of the control member 200 extending out of the mounting port 105, and a control rod 300 is connected to the matching portion 205. In some embodiments, the matching portion 205 includes a snap-fitting groove 205a, and the control rod 300 includes a snap-fitting portion 301 that can be adapted in the snap-fitting groove 205a to achieve a fixed connection between the control rod 300 and the control member 200, so that the control member 200 can be rotated by rotating the control rod 300. In some embodiments, the valve body 100 is formed with a mounting end face 106 located around the mounting port 105, and a mounting seat 400 is connected to the mounting end face 106; an end of the mounting seat 400 connected to the mounting end face 106 is provided with an open end 401, and the other end of the mounting seat 400 is provided with a through hole 402 coaxially arranged with the mounting port 105, and a cavity 403 connecting the open end 401 and the through hole 402 is provided in the mounting seat 400; the portion of the control member 200 extending out of the mounting port 105 is placed in the cavity 403, and the control rod 300 can pass through the through hole 402 to be connected to the mating portion 205.

[0057] In some embodiments, the valve body 100 is provided with an ignition port 107 communicating with the air inlet cavity 101 .

[0058] The same and similar parts between the various embodiments in this specification can be referenced to each other, and each embodiment focuses on the differences from other embodiments.

[0059] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. Low-pressure, high-flow dual-spray valve, characterized by: The invention comprises a valve body (100), wherein an air inlet cavity (101) and an air outlet cavity (102) which are interconnected are arranged in the valve body (100), and a control member (200) which can separate the air inlet cavity (101) from the air outlet cavity (102) is arranged in the valve body (100); wherein a first air outlet channel (103) and a second air outlet channel (104) which are interconnected with the air outlet cavity (102) are arranged in the valve body (100).

2. The low-pressure, high-flow dual-spray valve according to claim 1 is characterized in that: The control member (200) is arranged in the air outlet cavity (102) and can rotate around the axial direction of the air outlet cavity (102); a cavity (201) is arranged in the control member (200), and the control member (200) is provided with at least one first air vent (202) connected with the cavity (201) on its rotation path; and the first air vent (202) is arranged close to the connection between the air inlet cavity (101) and the air outlet cavity (102), and can connect the air inlet cavity (101) and the air outlet cavity (102).

3. The low-pressure, high-flow dual-spray valve according to claim 2 is characterized in that: The cavity (201) is provided with an open end (203) communicating with the first air outlet channel (103); the control member (200) is provided with two first air vents (202) arranged at intervals on its rotation path; the control member (200) is provided with a second air vent (204) communicating with the cavity (201) on its rotation path, and the second air vent (204) is arranged near the air outlet cavity (102) and the second air outlet channel (104), and can be connected The control member (200) is connected to the air inlet cavity (101) and the second air outlet channel (104); when the control member (200) is rotated to the point where one of the first air holes (202) is connected to the air inlet cavity (101), the second air hole (204) is connected to the second air outlet channel (104); when the control member (200) is rotated to the point where the other first air hole (202) is connected to the air inlet cavity (101), the second air hole (204) is not connected to the second air outlet channel (104).

4. The low-pressure, high-flow dual-spray valve according to claim 3 is characterized in that: The apertures of the two first air vents (202) are different; and when the control member (200) is rotated so that the first air vent (202) with a smaller aperture is connected to the air inlet cavity (101), the second air vent (204) is not connected to the second air outlet channel (104); and when the control member (200) is rotated so that the first air vent (202) with a larger aperture is connected to the air inlet cavity (101), the second air vent (204) is connected to the second air outlet channel (104).

5. The low-pressure, high-flow dual-spray valve according to claim 3 is characterized in that: The first air outlet channel (103) is arranged along the axial direction of the air outlet cavity (102), the control member (200) can partially extend into the first air outlet channel (103), and the portion of the control member (200) extending into the first air outlet channel (103) is provided with the open end (203).

6. The low-pressure, high-flow dual-spray valve according to claim 3 is characterized in that: The control member (200) is provided with the first vent hole (202), the second vent hole (204) and the open end (203) in sequence along its axial direction.

7. The low-pressure, high-flow dual-spray valve according to claim 1, characterized in that: The central axis of the first air outlet channel (103) or the second air outlet channel (104) is inclined relative to the central axis of the air outlet cavity (102) and can intersect with each other; and the central axis of the first air outlet channel (103) or the second air outlet channel (104) intersects with the central axis of the air outlet cavity (102) at an angle ∠α, and ∠α=60°±5°.

8. The low-pressure, high-flow dual-spray valve according to claim 1, characterized in that: The valve body (100) is provided with an installation opening (105) communicating with the air outlet cavity (102), and one end of the control member (200) can extend out of the installation opening (105); the end of the control member (200) extending out of the installation opening (105) is provided with a matching portion (205), and the matching portion (205) is connected to a control rod (300).

9. The low-pressure, high-flow dual-spray valve according to claim 8, characterized in that: The valve body (100) is formed with a mounting end surface (106) located around the mounting opening (105), and a mounting seat (400) is connected to the mounting end surface (106); an end of the mounting seat (400) connected to the mounting end surface (106) is provided with an open end (401), and the other end of the mounting seat (400) is provided with a through hole (402) coaxially arranged with the mounting opening (105), and a cavity (403) connecting the open end (401) and the through hole (402) is provided in the mounting seat (400); the part of the control member (200) extending out of the mounting opening (105) is placed in the cavity (403), and the control rod (300) can pass through the through hole (402) to be connected with the matching portion (205).

10. The low-pressure, high-flow dual-spray valve according to claim 1, characterized in that: The valve body (100) is provided with an ignition port (107) communicating with the air inlet cavity (101).

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