Fluid control structure

Abstract

The utility model provides a kind of fluid control structure, it is related to automation control technical field, the fluid control structure includes: fluid mixing structure, first cavity and second cavity are formed in it, first flow inlet, second flow inlet and flow outlet are additionally provided on it and protrude outward;First flow inlet is communicated with first cavity, second flow inlet and flow outlet are all communicated with second cavity;First flow inlet is used to input gas phase fluid to first cavity;Second flow inlet is used to input liquid phase fluid to second cavity;Flow outlet is used to output at least one in second cavity: gas phase fluid, liquid phase fluid, mixed fluid;First control structure is used to close or open the output port of first cavity, and first control structure is connected with fluid mixing structure;Second is used to close or open the second flow inlet.The utility model scheme saves installation space, reduces connecting piece and easy leakage point, and reduces the control delay of fluid on-off or mixing.

Description

Technical Field

[0001] This utility model relates to the field of automation control technology, and in particular to a fluid control structure. Background Technology

[0002] In existing technologies, for the mixed control of gas and liquid channel on / off states, separate control structures (such as separate valves) are usually used. Alternatively, to simplify the structure, the control structures that control the gas and liquid channels are simply connected, for example, by using a pipe to connect the valves that control the gas and liquid channels respectively. However, the above control structures have problems such as many connection points, many potential leakage points, large installation space requirements, additional cost of connecting parts, and delay in fluid on / off control within the channels. Utility Model Content

[0003] This invention provides a fluid control structure to solve the problems of existing control structures for mixed control of gas channel on / off and liquid channel on / off, which have large installation space, many leakage points, and control delay.

[0004] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0005] In a first aspect, embodiments of the present invention provide a fluid control structure, comprising:

[0006] A fluid mixing structure is provided, comprising a first cavity and a second cavity, the first cavity being in communication with the second cavity. The fluid mixing structure also has an outwardly protruding first inlet, a second inlet, and an outlet. The first inlet is in communication with the first cavity, and both the second inlet and the outlet are in communication with the second cavity. The first inlet is used to input a gaseous fluid into the first cavity; the second inlet is used to input a liquid fluid into the second cavity; and the outlet is used to output at least one of the following from the second cavity: the gaseous fluid, the liquid fluid, and a mixture of the gaseous fluid and the liquid fluid.

[0007] A first control structure is used to close or open the output port of the first cavity, and the first control structure is connected to the fluid mixing structure.

[0008] The second control structure is used to close or open the second flow inlet.

[0009] In some embodiments, the first inlet, the second inlet, and the outlet all protrude outwards from the outside of the fluid mixing structure.

[0010] In some embodiments, a limiting block is provided on the outer surface of the fluid mixing structure, and a limiting groove that cooperates with the limiting block is provided on the outer surface of the first control structure;

[0011] And / or,

[0012] The outer surface of the fluid mixing structure is provided with a limiting groove, and the outer surface of the first control structure is provided with a limiting block that cooperates with the limiting groove.

[0013] In some embodiments, the first control structure is fixedly connected to the fluid mixing structure.

[0014] In some embodiments, the first control structure and the fluid mixing structure are fixedly connected by at least one of the following methods:

[0015] Flange connection;

[0016] Threaded connection;

[0017] Pin connection;

[0018] Key connection;

[0019] SIM card;

[0020] welding.

[0021] In some embodiments, the first cavity includes a first cavity portion and a second cavity portion communicating with the first cavity portion;

[0022] The first control structure includes a sealing head and a sealing ring;

[0023] The sealing head is positioned towards the first cavity, and the first control structure closes or opens the first cavity via the sealing head. The outer wall surface of the sealing ring is in contact with the inner wall surface of the second cavity.

[0024] In some embodiments, the first control structure includes a fixed end for fixing the sealing head;

[0025] The shape of the fixed end includes at least one of the following:

[0026] T-shape;

[0027] I-shaped.

[0028] In some embodiments, the second inlet is internally threaded;

[0029] The fluid control structure also includes a check valve, which is connected to the second inlet via the thread.

[0030] In some embodiments, the diameter of the second inlet is larger than the diameter of the first inlet;

[0031] The diameter of the second inlet is larger than the diameter of the outlet.

[0032] The beneficial effects of this utility model are:

[0033] The fluid control structure provided by this utility model includes a fluid mixing structure. A first cavity and a second cavity communicating with the first cavity are formed within the fluid mixing structure. A first inlet, a second inlet, and an outlet are also formed on the fluid mixing structure. The first inlet communicates with the first cavity and is used to input gaseous fluid into the first cavity, i.e., the first cavity serves as a storage cavity for gaseous fluid. The second inlet and outlet communicate with the second cavity. The second inlet is used to input liquid fluid into the second cavity, and the outlet is used to output at least one of the following from the second cavity: gaseous fluid, liquid fluid, gaseous fluid, and a mixture of gaseous fluids. That is, the second cavity serves as a storage cavity for liquid fluid and as a mixing cavity for gaseous and liquid fluids. The fluid control structure also includes... A first control structure for closing or opening the output port of the first cavity and a second control structure for closing or opening the second inlet are provided. The first control structure is connected to the fluid mixing structure. In this embodiment of the invention, the fluid mixing structure, which is integrated as a whole, simultaneously achieves fluid storage and fluid mixing, saving installation space. Only the first and second control structures for control are designed and connected to the fluid mixing structure respectively, reducing the number of connecting parts and potential leakage points. Furthermore, the first control structure closes or opens the output port of the first cavity to control whether the gaseous fluid enters the second cavity, and the second control structure closes or opens the second inlet to control whether the liquid fluid enters the second cavity, thereby controlling whether the gaseous fluid and liquid fluid are mixed, reducing the control delay of fluid on / off or mixing. Attached Figure Description

[0034] Figure 1 This is a schematic diagram showing the overall structure of the fluid control structure provided in this embodiment of the present invention.

[0035] Figure 2 This is a side view of the fluid control structure provided in an embodiment of the present invention;

[0036] Figure 3 A cross-sectional view along the BB direction of the fluid control structure provided in an embodiment of this utility model;

[0037] Figure 4 This is a schematic diagram showing the structure of the fluid mixing structure provided in an embodiment of the present invention;

[0038] Figure 5 This is a schematic diagram of the first control structure provided in an embodiment of the present invention;

[0039] Figure 6 This is a schematic diagram showing the structure of the fixed end and sealing head of the first control structure provided in this embodiment of the present invention.

[0040] Explanation of reference numerals in the attached figures:

[0041] 1-Fluid mixing structure; 11-First cavity; 111-First cavity section; 112-Second cavity section; 12-Second cavity; 13-First inlet; 14-Second inlet; 15-Outlet; 16-Limiting block; 2-First control structure; 21-Limiting groove; 22-Threaded hole; 23-Sealing head; 24-Sealing ring; 25-Fixed end. Detailed Implementation

[0042] To make the technical problems, technical solutions, and advantages of this application clearer, a detailed description will be provided below in conjunction with the accompanying drawings and specific embodiments. In the following description, specific details such as particular configurations and components are provided merely to aid in a comprehensive understanding of the embodiments of this application. Therefore, those skilled in the art should understand that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of this application. Furthermore, for clarity and brevity, descriptions of known functions and structures have been omitted.

[0043] It should be understood that the phrase "one embodiment" or "an embodiment" throughout the specification means that a specific feature, structure, or characteristic related to the embodiment is included in at least one embodiment of this application. Therefore, "in one embodiment" or "in an embodiment" appearing throughout the specification does not necessarily refer to the same embodiment. Furthermore, these specific features, structures, or characteristics can be combined in any suitable manner in one or more embodiments.

[0044] In the various embodiments of this application, it should be understood that the sequence number of each process described below does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application.

[0045] The terms "first," "second," etc., used in this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such terms can be used interchangeably where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first" and "second" are generally of the same class, without limiting the number of objects; for example, the first object can be one or more. Furthermore, "or" in this application indicates at least one of the connected objects. For example, "A or B" covers three scenarios: Scenario 1: including A but not B; Scenario 2: including B but not A; Scenario 3: including both A and B. The character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0046] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0047] To address the problems of large installation space, numerous leakage points, and control delays in existing hybrid control structures that control both gas and liquid channels, this invention provides a fluid control structure.

[0048] Figure 1 This is a schematic diagram of the overall structure of the fluid control structure provided in this embodiment of the utility model. Figure 2 This is a side view of the fluid control structure provided in an embodiment of the present invention. Figure 3 This is a cross-sectional view along the BB direction of the fluid control structure provided in this embodiment of the utility model. (In conjunction with...) Figures 1 to 3 This utility model provides a fluid control structure, including:

[0049] Fluid mixing structure 1, wherein a schematic diagram of the structure of fluid mixing structure 1 is shown below. Figure 4 As shown, the fluid mixing structure 1 has a first cavity 11 and a second cavity 12 formed therein. The first cavity 11 is connected to the second cavity 12. The fluid mixing structure 1 also has a first inlet 13, a second inlet 14 and an outlet 15. The first inlet 13 is connected to the first cavity 11, and the second inlet 14 and the outlet 15 are both connected to the second cavity 15.

[0050] The first cavity 11 and the second cavity 12 can both be understood as hollow structures or accommodating spaces formed within the fluid mixing structure 1.

[0051] The connection between the first cavity 11 and the second cavity 12 can be understood as the first cavity 11 and the second cavity 12 forming a complete cavity structure. A part of this complete cavity structure serves as the first cavity 11, and the other part serves as the second cavity 12. Preferably, there is a clear interface between the first cavity 11 and the second cavity 12 to facilitate the distinction between the first cavity 11 and the second cavity 12.

[0052] The fluid mixing structure 1 also includes a first inlet 13, a second inlet 14, and an outlet 15, which are implemented in two ways:

[0053] Method 1: Three through holes are directly opened on the wall of the fluid mixing structure 1, which serve as the first flow inlet 13, the second flow inlet 14, and the flow outlet 15, respectively;

[0054] Method 2: For example Figure 1 or Figure 3 As shown, the first inlet 13, the second inlet 14, and the outlet 15 all protrude outwards from the outside of the fluid mixing structure 1. That is, the first inlet 13, the second inlet 14, and the outlet 15 are formed outwardly on the outside of the fluid mixing structure 1. The formation of the outwardly protruding first inlet 13, second inlet 14, and outlet 15 on the outside of the fluid mixing structure 1 can be understood as three pipes being provided outside the fluid mixing structure 1. One of the three pipes serves as the first inlet 13, with one end connected to the first cavity 11 and the other end extending to the outside of the fluid mixing structure 1 for inputting fluid. Another of the three pipes serves as the second inlet 14, with one end connected to the second cavity 12 and the other end extending to the outside of the fluid mixing structure 1 for inputting fluid. The third of the three pipes serves as the outlet 15, with one end connected to the second cavity 12 and the other end extending to the outside of the fluid mixing structure 1 for outputting fluid.

[0055] Preferably, in order to reduce connectors and potential leakage points, the fluid mixing structure 1 is manufactured using a one-piece molding process.

[0056] The first inlet 13 is used to input gaseous fluid into the first cavity 11. That is, the first cavity 11 is a pressure-holding gas cavity. The first cavity 11 is used to input gaseous fluid into the second cavity 12, and the outlet 15 leaves out the gaseous fluid in the second cavity 12. The first cavity 11 can also be used to store (or temporarily store) gaseous fluid.

[0057] The gaseous fluid is a high-pressure gas flow.

[0058] The second inlet 14 is used to input liquid fluid into the second cavity 12. It is understood that the second cavity 12 can also be used to store (or temporarily store) liquid fluid. Alternatively, when gaseous fluid is input into the second cavity 12 from the first cavity 11 and liquid fluid is input into the second cavity 12 from the second inlet 14, the second cavity 12 can also be used to store (or temporarily store) gaseous fluid and liquid fluid. Alternatively, the second cavity 12 can also be used to mix gaseous fluid and liquid fluid to obtain a mixed fluid and to store (or temporarily store) the mixed fluid. That is, the second cavity 12 can also be called a mixing cavity.

[0059] The outlet 15 is used to output at least one of the following from the second cavity 12: the gaseous fluid, the liquid fluid, and the mixture of the gaseous fluid and the gaseous fluid. Specifically, when only the first inlet 13 inputs gaseous fluid (or high-pressure airflow) into the first cavity 11, the first cavity 11 inputs the gaseous fluid (or high-pressure airflow) into the second cavity 12, and the outlet 15 outputs the gaseous fluid (or high-pressure airflow) from the second cavity 12, that is, only airflow is allowed in the fluid mixing structure 1; when only the second inlet 14 inputs liquid fluid into the second cavity 12, the outlet 15 outputs the liquid fluid from the second cavity 12, that is, only liquid flow is allowed in the fluid mixing structure 1; when the first inlet 13 inputs gaseous fluid (or high-pressure airflow) into the first cavity 11, and simultaneously the second inlet 14 inputs liquid fluid into the second cavity 12, the first cavity 11 inputs the gaseous fluid (or high-pressure airflow) into the second cavity 12, and the gaseous fluid (or high-pressure airflow) and liquid fluid mix in the second cavity 12 to form a mixed fluid, and the outlet 15 outputs the mixed fluid from the second cavity 12, thus realizing fluid mixing on / off control.

[0060] The mixed fluid can also be understood as an aerosol-like fluid or an air curtain-like fluid.

[0061] The first control structure 2, wherein a schematic diagram of the first control structure 2 is shown below. Figure 5 As shown, the first control structure 2 is connected to the fluid mixing structure 1, and the first control structure 2 is used to close or open the output port of the first cavity 11. Closing the output port of the first cavity 11 can also be understood as the first control structure 2 blocking the output port of the first cavity 11 or blocking the space within the first cavity 11, thereby closing the output port of the first cavity 11. Opening the output port of the first cavity 11 can also be understood as the first control structure 2 releasing the output port of the first cavity 11 or releasing the space within the first cavity 11, thereby opening the output port of the first cavity 11.

[0062] The output port of the first cavity 11 can be understood as the connection port between the first cavity 11 and the second cavity 12.

[0063] The first control structure 2 closes the output port of the first cavity 11, preventing the gaseous fluid (or high-pressure airflow) input through the first inlet 13 from entering the second cavity 12 through the output port of the first cavity 11, and preventing the gaseous fluid (or high-pressure airflow) or mixed fluid from being output through the outlet 15. The first control structure 2 opens the output port of the first cavity 11, controlling the gaseous fluid (or high-pressure airflow) input through the first inlet 13 to enter the second cavity 12 through the first cavity 11, and to be output through the outlet 15 or mixed fluid.

[0064] Preferably, the first control structure 2 is fixedly connected to the fluid mixing structure 1, which can ensure the firmness of the connection between the first control structure 2 and the fluid mixing structure 1, increase the sealing and connection reliability between the first control structure 2 and the fluid mixing structure 1, and reduce the risk of fluid leakage.

[0065] The second control structure is used to close or open the second inlet 14. Closing the second inlet 14 can be understood as the second control structure controlling the cessation of liquid fluid input into the second inlet 14, or blocking one end of the liquid fluid input into the second inlet 14, or blocking the space within the second inlet 14. Opening the second inlet 14 can be understood as the second control structure controlling the commencement of liquid fluid input into the second inlet 14, or releasing one end of the liquid fluid input into the second inlet 14, or releasing the space within the second inlet 14.

[0066] The second control structure closes the second inlet 14, preventing liquid fluid from entering the second cavity 12 and preventing liquid fluid from exiting the outlet 15. The second control structure opens the second inlet 14, preventing liquid fluid from entering the second cavity 12 and exiting the outlet 15.

[0067] The first control structure 2 opens the output port of the first cavity 11. At the same time, the second control structure opens the second inlet 14. The gaseous fluid (or high-pressure gas flow) input by the first inlet 13 enters the first cavity 11 and then enters the second cavity 12 through the first cavity 11. The liquid fluid is input into the second cavity 12 through the second inlet 14. The gaseous fluid (or high-pressure gas flow) and the liquid fluid mix in the second cavity 12 to form a mixed fluid. The mixed fluid in the second cavity 12 is output from the outlet 15.

[0068] In this embodiment, the first inlet 13 can also be called the gas inlet or the high-pressure gas flow inlet, the second inlet 14 can be called the liquid inlet, and the outlet 15 can also be called the fluid outlet.

[0069] The specific working principle of the fluid control structure in this embodiment is as follows:

[0070] When only gaseous fluid needs to be output, the second control structure closes the second inlet 14, and the first control structure 2 opens the outlet of the first cavity 11. The gaseous fluid (or high-pressure airflow) input by the first inlet 13 enters the first cavity 11, and then enters the second cavity 12 through the outlet of the first cavity 11, and is output from the outlet 15.

[0071] When only liquid fluid needs to be output, the second control structure opens the second inlet 14, the first control structure 2 closes the output port of the first cavity 11, and the liquid fluid input through the second inlet 14 enters the second cavity 12 and is output from the outlet 15.

[0072] When a mixed fluid needs to be output, the first control structure 2 opens the output port of the first cavity 11, and the second control structure closes the second inlet 14. The gaseous fluid (or high-pressure gas flow) input by the first inlet 13 enters the first cavity 11 and then enters the second cavity 12 through the output port of the first cavity 11. The liquid fluid input by the second inlet 14 enters the second cavity 12. In the second cavity 12, the gaseous fluid (or high-pressure gas flow) and the liquid fluid mix to form a mixed fluid, and the mixed fluid is output from the outlet 15.

[0073] This embodiment of the invention, through a fluid mixing structure that functions as a whole, simultaneously achieves fluid storage and mixing, simplifying the structure of fluid input, output, and storage, reducing structural volume, saving installation space, and improving installation efficiency. Only a first control structure and a second control structure are designed to connect to the fluid mixing structure, reducing connectors and potential leakage points, thus improving installation reliability. Furthermore, the first control structure controls whether the gaseous fluid enters the second cavity by closing or opening the output port of the first cavity, and the second control structure controls whether the liquid fluid enters the second cavity by closing or opening the second inlet, thereby controlling whether the gaseous and liquid fluids mix. This reduces the control delay for fluid on / off or mixing, achieving a rapid response effect. It is suitable for fluid pipeline control scenarios with specific control logic. In other words, this embodiment provides a more reliable, simpler, and more economical control structure.

[0074] In some embodiments, three ways of cooperating when the first control structure 2 is fixedly connected to the fluid mixing structure 1 are provided:

[0075] Method 1: The outer surface of the fluid mixing structure 1 is provided with a limiting block 16, and the outer surface of the first control structure 2 is provided with a limiting groove 21 that cooperates with the limiting block 16.

[0076] By matching the limiting block 16 of the fluid mixing structure 1 with the limiting groove 21 of the first control structure 2 (i.e., the limiting block 16 extends into the limiting groove 21), the installation and positioning of the fluid mixing structure 1 and the first control structure 2 can be achieved. After the installation and positioning are completed, the first control structure 2 and the fluid mixing structure 1 are fixedly connected, which can improve the installation efficiency of the first control structure 2 and the fluid mixing structure 1. Furthermore, the matching of the limiting block 16 of the fluid mixing structure 1 with the limiting groove 21 of the first control structure 2 can also prevent relative displacement after the first control structure 2 and the fluid mixing structure 1 are fixedly connected, thus ensuring the reliability of the connection.

[0077] It should be noted that the number of limiting blocks 16 provided on the outer surface of the fluid mixing structure 1 is one, two or more, and the number of limiting grooves 21 provided on the outer surface of the first control structure 2 is one, two or more, and the number of limiting blocks 16 and the number of limiting grooves 21 are equal, that is, one limiting block 16 is matched with one limiting groove 21.

[0078] Method 2: The outer surface of the fluid mixing structure 1 is provided with a limiting groove, and the outer surface of the first control structure 2 is provided with a limiting block that cooperates with the limiting groove.

[0079] By matching the limiting groove of the first control structure 2 with the limiting groove of the fluid mixing structure 1 (i.e., the limiting block extends into the limiting groove), the installation and positioning of the fluid mixing structure 1 and the first control structure 2 can be achieved. After the installation and positioning are completed, the first control structure 2 and the fluid mixing structure 1 are fixedly connected, which can improve the installation efficiency of the first control structure 2 and the fluid mixing structure 1. Furthermore, the matching of the limiting block of the first control structure 2 with the limiting groove of the fluid mixing structure 1 can also prevent relative displacement after the first control structure 2 and the fluid mixing structure 1 are fixedly connected, thus ensuring the reliability of the connection.

[0080] It should be noted that the number of limiting blocks provided on the outer surface of the first control structure 2 is one, two or more, and the number of limiting grooves provided on the outer surface of the fluid mixing structure 1 is one, two or more, and the number of limiting blocks and the number of limiting grooves are equal, that is, one limiting block is matched with one limiting groove.

[0081] Method 3: The outer surface of the fluid mixing structure 1 is provided with a limiting block 16, and the outer surface of the first control structure 2 is provided with a limiting groove 21 that cooperates with the limiting block 16. In addition, the outer surface of the fluid mixing structure 1 is provided with a limiting groove, and the outer surface of the first control structure 2 is provided with a limiting block that cooperates with the limiting groove.

[0082] By matching the limiting block 16 of the fluid mixing structure 1 with the limiting groove 21 of the first control structure 2 (i.e., the limiting block 16 extends into the limiting groove 21), and matching the limiting groove of the first control structure 2 with the limiting groove of the fluid mixing structure 1 (i.e., the limiting block extends into the limiting groove), the installation and positioning of the fluid mixing structure 1 and the first control structure 2 can be achieved. After the installation and positioning are completed, the first control structure 2 and the fluid mixing structure 1 are fixedly connected, which can improve the installation efficiency of the first control structure 2 and the fluid mixing structure 1. Furthermore, the matching of the limiting block of the first control structure 2 with the limiting groove of the fluid mixing structure 1 can also prevent relative displacement after the first control structure 2 and the fluid mixing structure 1 are fixedly connected, thus ensuring the reliability of the connection.

[0083] It should be noted that the number of limiting blocks can be one, two, or more, and the number of limiting slots can be one, two, or more, and the number of limiting blocks and the number of limiting slots are equal, that is, one limiting block is matched with one limiting slot. Furthermore, the number of limiting blocks 16 in the fluid mixing structure 1 and the number of limiting blocks in the first control structure 2 can be equal or unequal, and the number of limiting slots in the fluid mixing structure 1 and the number of limiting slots in the first control structure 2 can also be equal or unequal.

[0084] In some embodiments, the fixed connection between the first control structure 2 and the fluid mixing structure 1 includes the following fixed connection methods:

[0085] Fixed connection method one: The first control structure 2 and the fluid mixing structure 1 are fixedly connected by a flange. It can be understood that the first control structure 2 and the fluid mixing structure 1 are fixedly connected by a flange, eliminating the need for other connecting parts (such as pipelines) between the first control structure 2 and the fluid mixing structure 1, saving installation space and reducing installation costs.

[0086] Fixed connection method two: The first control structure 2 and the fluid mixing structure 1 are connected by threads.

[0087] The specific implementation method can be as follows: a screw is provided on the fluid mixing structure 1, and a threaded hole 22 is provided on the first control structure 2; the first control structure is fixedly connected to the fluid mixing structure by screwing the screw to the threaded hole.

[0088] The screw installed on the fluid mixing structure 1 can be understood as a detachable connection between the screw and the fluid mixing structure 1. The screw is made using an integral molding process and is then installed on the fluid mixing structure 1. It then passes through the threaded hole on the first control structure 2 and is screwed into the threaded hole to fix the first control structure 2 to the fluid mixing structure 1. This eliminates the need for other connecting parts (such as pipelines) between the first control structure 2 and the fluid mixing structure 1, saving installation space and reducing installation costs.

[0089] Preferably, two threaded holes 22 are symmetrically provided on the first control structure 2 to further ensure the firmness of the connection between the first control structure 2 and the fluid mixing structure 1.

[0090] Fixed connection method three: The first control structure 2 and the fluid mixing structure 1 are connected by a pin.

[0091] Specifically, this can be achieved by creating pin holes in both the first control structure 2 and the fluid mixing structure 1, and then inserting cylindrical pins, conical pins, cotter pins, or similar pins into these holes to securely connect the first control structure 2 and the fluid mixing structure 1. This method of connection is convenient to install and facilitates disassembly and maintenance should either the first control structure 2 or the fluid mixing structure 1 malfunction.

[0092] Preferably, two or more pin holes are symmetrically opened on the first control structure 2 and the fluid mixing structure 1, respectively, to further ensure the firmness of the connection between the first control structure 2 and the fluid mixing structure 1.

[0093] Fixed connection method four: The first control structure 2 and the fluid mixing structure 1 are connected by a key.

[0094] The specific implementation method can be: the first control structure 2 and the fluid mixing structure 1 are circumferentially fixed and connected by a flat key, a semi-circular key, etc., to prevent the first control structure 2 and the fluid mixing structure 1 from rotating relative to each other.

[0095] It should be noted that, preferably, the above-mentioned fixed connection method three and fixed connection method four can be used in conjunction with other fixed connection methods. For example, after the first control structure 2 is keyed to the fluid mixing structure 1, the first control structure 2 is then connected to the fluid mixing structure 1 by a thread.

[0096] Fixed connection method five: The first control structure 2 and the fluid mixing structure 1 are snapped together (or called snap-fit ​​connection).

[0097] Specifically, this can be achieved by: setting a buckle on the outside of the first control structure 2 and a slot on the outside of the fluid mixing structure 1, with the buckle and slot engaging to achieve a fixed connection; or, setting a buckle on the outside of the fluid mixing structure 1 and a slot on the outside of the first control structure 2, with the buckle and slot engaging to achieve a fixed connection. This fixing method has the advantage of convenient assembly and disassembly.

[0098] Fixed connection method six: Welding between the first control structure 2 and the fluid mixing structure 1. This fixing method reduces potential leakage points.

[0099] In some embodiments, the first cavity 11 includes a first cavity 111 and a second cavity 112 communicating with the first cavity 111.

[0100] The first cavity 11 includes a first cavity portion 111 and a second cavity portion 112 communicating with the first cavity portion 111. This can be understood as the first cavity portion 111 and the second cavity portion 112 forming a single cavity structure. A portion of this cavity structure serves as the first cavity portion 111, and another portion serves as the second cavity portion 112. The first cavity portion 111 is located on the side closer to the second cavity 12. Preferably, there is a clear interface between the first cavity portion 111 and the second cavity portion 112 to facilitate differentiation between them.

[0101] Optionally, the diameter of the first cavity 111 is smaller than that of the second cavity 112.

[0102] It is understandable that the first cavity 111 can serve as the output port of the first cavity 11.

[0103] The first control structure 2 includes a sealing head 23 and a sealing ring 24; wherein, the sealing head 23 is disposed toward the first cavity 111, and the first control structure 2 closes or opens the first cavity 111 through the sealing head 23, and the outer wall surface of the sealing ring 24 is in contact with the inner wall surface of the second cavity 112.

[0104] Understandably, after the first control structure 2 is fixedly connected to the fluid mixing structure 1, the sealing head 23 and sealing ring 24 on the first control structure 2 penetrate into the first cavity 11. The sealing head 23 closes the first cavity 111, thereby closing the output port of the first cavity 11. This prevents the gaseous fluid (or high-pressure airflow) flowing in from the first inlet 13 from entering the first cavity 11, and also prevents it from entering the second cavity 12 through the first cavity 11, and prevents the gaseous fluid (or high-pressure airflow) from being output from the outlet 15. The sealing head 23 opens the first cavity 111, thereby opening the output port of the first cavity 11, controlling the gaseous fluid (or high-pressure airflow) input from the first inlet 13 to enter the first cavity 11, and then enter the second cavity 12 through the first cavity 11, with the gaseous fluid (or high-pressure airflow) being output from the outlet 15.

[0105] Furthermore, by ensuring that the outer wall surface of the sealing ring 24 is in contact with the inner wall surface of the second cavity 112, the sealing performance of the cavity structure can be maintained. That is, it prevents the gaseous fluid (or high-pressure airflow) input from the first inlet 13 from entering the first cavity 11 and then leaking through the second cavity 112 to the first control structure 2, thus preventing leakage risk. Moreover, by ensuring that the outer wall surface of the sealing ring 24 is in contact with the inner wall surface of the second cavity 112, the first cavity 11 can be a pressure-holding chamber when it is open, ensuring the pressure of the high-pressure airflow.

[0106] In some embodiments, the first control structure 2 includes a fixed end 25 for fixing the sealing head 23.

[0107] It is understood that the end of the first control structure 2 facing the fluid mixing structure 1 is formed as a fixed end 25, wherein the fixed end 25 fixes the sealing head 23 by being sleeved on the fixed end 25.

[0108] By fitting the sealing head 23 onto the fixed end 25, the risk of the sealing head 23 falling off during the opening or closing of the first cavity 111 by moving the sealing head 23 can be reduced.

[0109] The shape of the fixed end 25 includes at least one of the following:

[0110] T-shape;

[0111] I-shaped.

[0112] like Figure 6 The sealing head shown is T-shaped. By designing the shape of the fixed end 25 as T-shaped or I-shaped, after the sealing head 23 is fitted onto the fixed end 25, the sealing head 23 fits tightly with the fixed end 25 and is snapped together, which can ensure that the sealing head 23 is firmly fitted onto the fixed end 25.

[0113] In some embodiments, the second inlet 14 is internally threaded;

[0114] The fluid control structure also includes a check valve, which is connected to the second inlet 14 via the thread.

[0115] Alternatively, threads may be provided only inside the second inlet 14, on the side near the input end of the liquid phase fluid, or the entire inside the second inlet 14 may be threaded.

[0116] In order to achieve a threaded connection, the check valve is also threaded on the outside, that is, the check valve is set in the form of a screw, so as to achieve a threaded connection between the check valve and the thread inside the second inlet 14.

[0117] In this embodiment, a check valve is connected to the input end of the liquid fluid at the second inlet 14. The check valve is activated by its own weight and the pressure of the liquid fluid to block the backflow of the liquid fluid.

[0118] In some embodiments, the diameter of the second inlet 14 is larger than the diameter of the first inlet 13. The diameter of the second inlet 14 is larger than the diameter of the outlet 15.

[0119] Since the second inlet 14 is the liquid inlet and the first inlet 13 is the high-pressure gas inlet, and in order to ensure that the outlet 15 can spray out a mist-like fluid or a curtain-like fluid, in order to ensure the flow rate of the liquid phase fluid and the pressure of the high-pressure gas inlet, the second inlet 14 is designed to be a passage with a larger diameter, the first inlet 13 is designed to be a passage with a smaller diameter, and the outlet 15 is designed to be a passage with a smaller diameter.

[0120] In this embodiment, the relationship between the diameter of the first inlet 13 and the diameter of the outlet is not limited.

[0121] The specific values ​​of the diameter of the first inlet 13, the diameter of the second inlet 14, and the diameter of the outlet 15 can be set according to requirements.

[0122] In one implementation, the first control structure 2 is a solenoid valve; the second control structure is a liquid pump.

[0123] That is, the solenoid valve controls whether the gaseous fluid (or high-pressure gas flow) input into the first inlet 13 enters the second chamber 12 from the first chamber 11, and the liquid pump controls whether the liquid gas enters the second chamber 12 from the second inlet 14.

[0124] The working principle of the solenoid valve is as follows: The solenoid valve includes an electromagnetic coil, an elastic element, and an armature. The end of the armature facing the first cavity is the fixed end, and a sealing head is fitted over the fixed end. The electromagnetic coil generates magnetic force on the armature, and the elastic element generates elastic force on the armature. The input end of the solenoid valve is an electrical signal interface. When the solenoid valve is energized, the electromagnetic coil inside the solenoid valve receives magnetic force. When the magnetic force is greater than the elastic force, the armature moves away from the first cavity 111 of the first cavity 11, and the sealing head on the fixed end of the armature opens the first cavity 111 of the first cavity 11. When the solenoid valve is de-energized, the magnetic force of the electromagnetic coil inside the solenoid valve disappears. When the magnetic force is less than the elastic force, the armature moves towards the first cavity 111 of the first cavity 11, and the sealing head on the fixed end of the armature closes the first cavity 111 of the first cavity 11.

[0125] The fluid control structure provided in this embodiment of the invention, through the design of an integral fluid mixing structure, includes a first cavity and a second cavity, and integrates a first inlet, a second inlet, and an outlet externally. The design also features a fixed connection between the first control structure and the fluid mixing structure, significantly reducing the overall volume, saving installation space, and resulting in a compact structure with high integration. Furthermore, the design connects the first inlet to the first cavity, and both the second inlet and outlet to the second cavity, eliminating or shortening intermediate connecting pipes, reducing fluid volume and flow resistance, and enabling a faster response from the fluid control structure. The structure also eliminates external connecting pipes and joints, fundamentally reducing potential leakage points, improving system sealing and long-term operational reliability. It fully leverages the advantages of solenoid valves (low power, fast response, easy control) and the fluid mixing structure (high pressure resistance, integral molding, zero leakage points), achieving sealed on / off control of high-pressure fluid and liquid phase fluid with small signals. Finally, installation only requires connecting the fluid mixing structure and the first control structure; installation only requires connecting the power cord and the main fluid pipeline. Maintenance is also easy, reducing the cost of purchasing and installing connecting parts.

[0126] The above describes the preferred embodiments of this utility model. It should be noted that those skilled in the art can make several improvements and modifications without departing from the principles of this utility model, and these improvements and modifications are also within the protection scope of this utility model.

Claims

1. A fluid control structure, characterized in that, include: A fluid mixing structure is provided, comprising a first cavity and a second cavity, the first cavity being connected to the second cavity. The fluid mixing structure also includes a first inlet, a second inlet, and an outlet. The first inlet is connected to the first cavity, and both the second inlet and the outlet are connected to the second cavity. The first inlet is used to input gaseous fluid into the first cavity. The second inlet is used to input liquid fluid into the second cavity; The outlet is used to output at least one of the following from the second cavity: the gaseous fluid, the liquid fluid, and a mixture of the gaseous fluid and the gaseous fluid; A first control structure is used to close or open the output port of the first cavity, and the first control structure is connected to the fluid mixing structure. The second control structure is used to close or open the second flow inlet.

2. The fluid control structure according to claim 1, characterized in that, The first inlet, the second inlet, and the outlet all protrude outwards from the outside of the fluid mixing structure.

3. The fluid control structure according to claim 1, characterized in that, The outer surface of the fluid mixing structure is provided with a limiting block, and the outer surface of the first control structure is provided with a limiting groove that cooperates with the limiting block. And / or, The outer surface of the fluid mixing structure is provided with a limiting groove, and the outer surface of the first control structure is provided with a limiting block that cooperates with the limiting groove.

4. The fluid control structure according to claim 1 or 3, characterized in that, The first control structure is fixedly connected to the fluid mixing structure.

5. The fluid control structure according to claim 4, characterized in that, The first control structure and the fluid mixing structure are fixedly connected by at least one of the following methods: Flange connection; Threaded connection; Pin connection; Key connection; SIM card; welding.

6. The fluid control structure according to claim 1, characterized in that, The first cavity includes a first cavity portion and a second cavity portion communicating with the first cavity portion; The first control structure includes a sealing head and a sealing ring; The sealing head is positioned towards the first cavity, and the first control structure closes or opens the first cavity via the sealing head. The outer wall surface of the sealing ring is in contact with the inner wall surface of the second cavity.

7. The fluid control structure according to claim 6, characterized in that, The first control structure includes a fixed end, which is used to fix the sealing head; The shape of the fixed end includes at least one of the following: T-shape; I-shaped.

8. The fluid control structure according to claim 1, characterized in that, The second inlet has internal threads; The fluid control structure also includes a check valve, which is connected to the second inlet via the thread.

9. The fluid control structure according to claim 1, characterized in that, The diameter of the second inlet is larger than the diameter of the first inlet; The diameter of the second inlet is larger than the diameter of the outlet.

10. The fluid control structure according to claim 1, characterized in that, The first control structure is a solenoid valve; The second control structure is a liquid pump.

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