A portable two-way control valve

Abstract

This utility model relates to the field of valve technology, and in particular discloses a lightweight dual-channel control valve, including a valve body and a knob rotatably connected to the valve body. The valve body has a first channel and a second channel, and the valve body has a mounting cavity connecting the first channel and the second channel. The knob is inserted into the mounting cavity and interferes with the valve body. The knob has two sets of through holes, which respectively connect to and conduct the first channel and the second channel. The knob can be rotated to control the connection or disconnection of the through holes with the first and second channels, thereby realizing the opening and closing control of the dual channels. This utility model achieves simultaneous or independent control of two air paths with a single knob. It has a compact structure and an intuitive control method, and is suitable for applications involving fluid diversion and switching. Unlike traditional single-channel valve body structures or dual-knob control methods, this invention adopts an integrated structural design, achieving dual-channel control while maintaining portability, reducing space occupation and operational complexity.

Description

Technical Field

[0001] This utility model relates to the field of valve technology, and in particular discloses a lightweight dual-channel control valve. Background Technology

[0002] Existing control valves are widely used in fluid control systems, especially in medical devices, laboratory equipment, and small household systems. They often adopt a single-channel or dual-channel structure and can be adjusted by a knob to open or close two independent fluid paths or regulate the flow rate.

[0003] However, traditional dual-channel control valves have the following problems: inaccurate positioning: the knob often lacks an effective limit or locking structure during operation, making it difficult for users to quickly and accurately judge the position of the knob during adjustment, which can easily lead to misoperation; complex structure and large size: some high-precision dual-channel control valves use multi-stage sealing or metal spring mechanisms, resulting in complex structure and increased size, which is not conducive to installation and use in lightweight equipment.

[0004] Therefore, there is an urgent need for a lightweight dual-channel control valve with a more compact structure, more intuitive operation, and more reliable use, especially a knob locking mechanism with clear positioning feedback, to meet the dual requirements of portability and precise control. Utility Model Content

[0005] In order to overcome the shortcomings and deficiencies of the existing technology, the purpose of this utility model is to provide a lightweight dual-channel control valve with a more compact structure, more intuitive operation, and more reliable use.

[0006] To achieve the above objectives, this utility model provides a lightweight dual-channel control valve, comprising a valve body and a knob rotatably connected to the valve body. The valve body has a first channel and a second channel, and the valve body has a mounting cavity connecting the first and second channels. The knob is inserted into the mounting cavity and interferes with the valve body. The knob has two sets of through holes, which respectively connect the first channel to the mounting cavity and the second channel to the mounting cavity. The valve body has a connecting cavity connecting the first and second channels. External fluid sequentially enters the connecting cavity through the first channel and the through holes, and the fluid in the connecting cavity sequentially flows out of the valve body through the through holes and the second channel. The knob can be rotated to control the connection or disconnection of the through holes and channels, thereby achieving dual-channel opening and closing control. This structure allows for simultaneous or independent control of two air paths with a single knob. It is compact, intuitive in control, and suitable for applications involving fluid diversion and switching. Unlike traditional single-channel valve body structures or dual-knob control methods, this invention adopts an integrated structural design, achieving dual-channel control while maintaining portability, reducing space occupation and operational complexity.

[0007] Specifically, the first channel has a first air inlet and a first air outlet at each end, and the second channel has a second air inlet and a second air outlet at each end. The first air inlet and the second air outlet are located at opposite ends of one side of the valve body, while the first air outlet and the second air inlet are located on the other side of the valve body. This cross-layout facilitates symmetrical pipe arrangement, is particularly suitable for bidirectional cross-control scenarios, and improves the rationality and aesthetics of pipeline routing. Compared to traditional same-side air inlet and outlet designs, this structure, through its cross-layout, ensures that the two channels do not interfere with each other on the same side, which is beneficial for system integration and maintenance.

[0008] Specifically, the valve body has a mounting groove on the side near the first air outlet. The valve body connects to external equipment via the mounting groove, and a sealing ring is installed at the bottom of the groove. This ensures a reliable airtight connection between the valve body and the external equipment, prevents leakage, and improves safety performance. Traditional structures often use adhesive or rigid fitting methods for installation, resulting in poor sealing. This design, by reserving a mounting groove and embedding a sealing ring, effectively compensates for assembly errors and improves the overall sealing quality.

[0009] Specifically, the knob has a cylindrical structure with its rotation axis perpendicular to both the first and second channels. The cylindrical structure facilitates smooth 360° rotation of the knob, and combined with the vertically arranged dual channels, it allows for precise control of the on / off state. The channel connection area can be adjusted by rotating the knob, achieving an "adjustable flow rate" function. Compared to traditional flat push-pull or planar rotating structures, the vertical axis arrangement enhances the knob's lever arm effect, making operation more effortless and providing clearer feedback.

[0010] Specifically, both the first air inlet and the second air outlet are equipped with connectors. These connectors are threaded to the valve body, and their hollow interiors communicate with a channel, which in turn connects to an external pipeline. The connector type can be flexibly changed as needed (e.g., external thread, quick-connect, snap-fit), adapting to various equipment interface standards and expanding its applicability. Traditional air valve connections are mostly fixed welded structures with poor versatility; this invention uses a standard threaded structure, allowing for easy replacement and maintenance, and is suitable for modular installation.

[0011] Specifically, a sealing element is provided between the connector and the valve body. Both ends of the sealing element have inclined guide surfaces. Both the valve body and the connector have transition sections adapted to these inclined guide surfaces. The interference fit between the inclined guide surfaces and the transition sections enhances the airtightness of the valve body. This improves sealing performance and facilitates automatic guidance during connector installation, reducing assembly difficulty. Traditional seals use a planar pressing method, which is easily affected by machining accuracy. This design strengthens the interference sealing capability through a double-inclined guide structure, improving vibration resistance and durability.

[0012] Specifically, the valve body is a one-piece molded structure. This one-piece molding structure improves the valve body's strength and sealing performance, reducing the risk of potential leakage. Unlike assembled valve body structures, the one-piece molding reduces fitting errors, lowers manufacturing costs, and improves product consistency and lifespan.

[0013] Specifically, the valve body's mounting cavity has a hemispherical positioning groove, and the knob has a locking groove. An elastic element and a steel ball adapted to the positioning groove are installed in the locking groove. When the knob is rotated to a predetermined angle, the steel ball springs into the positioning groove and locks the knob. This effectively prevents the knob from deflecting due to vibration or accidental contact, improving control accuracy and operational reliability. Compared to a continuous rotation structure without positioning, the added locking structure provides clear feedback on the operating position, making it suitable for segmented control scenarios and enhancing the human-machine interface experience.

[0014] Specifically, the positioning slots are provided in multiple sets, with equal spacing between the sets along the circumference of the knob. Multiple control positions can be achieved according to system requirements, such as 0°, 45°, 90°, and 180°, offering flexible and versatile operation. Compared to traditional single-positioning structures, this design enables multi-state control and is suitable for scenarios involving multi-segment airflow adjustment or complex function switching.

[0015] Specifically, the through hole is provided with an annular groove, and a sealing ring is installed in the annular groove. The sealing ring is used to seal the gap between the valve body and the knob. It maintains a seal during knob rotation, ensuring the airtightness of the valve throughout its operation. The embedded sealing ring structure is more durable and reliable than traditional adhesive sealing or gap pressing methods, adaptable to frequent operation scenarios, and facilitates future replacement and maintenance.

[0016] The beneficial effects of this utility model are: compact structure and light weight, suitable for application scenarios with limited installation space or frequent relocation; dual-channel independent control, realizing the operation of two fluids without interference, improving control flexibility; symmetrical arrangement of inlet and outlet, simplifying the connection process and strong adaptability; equipped with an operation marking area, making it convenient for users to quickly identify the valve opening and closing status, improving operational safety; good sealing performance and high conduction efficiency, effectively improving the system's working stability and energy saving. Attached Figure Description

[0017] Figure 1 This is an exploded view of a portable dual-channel control valve according to the present invention.

[0018] Figure 2 This is a schematic diagram of the structure of a lightweight dual-channel control valve according to the present invention;

[0019] Figure 3 This is a cross-sectional schematic diagram of the valve body, connector, and seal of this utility model;

[0020] Figure 4 This is a cross-sectional schematic diagram of the valve body of this utility model;

[0021] Figure 5 This is a cross-sectional schematic diagram of the knob of this utility model.

[0022] The reference numerals in the figures include:

[0023] 1. Valve body; 2. Knob; 3. First channel; 4. Second channel; 5. Mounting cavity; 6. Through hole; 7. First air inlet; 8. First air outlet; 9. Second air inlet; 10. Second air outlet; 11. Mounting groove; 12. Sealing ring; 13. Connector; 14. Seal; 15. Inclined guide surface; 16. Transition section; 17. Positioning groove; 18. Locking groove; 19. Elastic element; 20. Steel ball; 21. Annular groove; 22. Sealing ring; 23. Connecting cavity. Detailed Implementation

[0024] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0025] Please see Figures 1 to 5 As shown, this utility model discloses a lightweight dual-channel control valve. The valve body 1 has a first channel 3 and a second channel 4. The valve body 1 has a mounting cavity 5 connecting the first channel 3 and the second channel 4. A knob 2 is inserted into the mounting cavity 5 and interferes with the valve body 1. The knob 2 has two sets of through holes 6, which are used to connect the first channel 3 and the mounting cavity 5, and the second channel 4 and the mounting cavity 5, respectively. The valve body 1 has a connecting cavity 23 connecting the first channel 3 and the second channel 4. External fluid enters the connecting cavity 23 sequentially through the first channel 3 and the through holes 6, and the fluid in the connecting cavity 23 flows out of the valve body 1 sequentially through the through holes 6 and the second channel 4. The knob 2 can be rotated to control the connection or disconnection of the through holes 6 and the channels, thereby realizing the opening and closing control of the dual channels. This structure allows for simultaneous or independent control of two air paths via a single knob 2. It features a compact structure and intuitive control, making it suitable for applications involving fluid diversion and switching. Unlike traditional single-channel valve body 1 structures or dual-knob 2 control methods, this invention adopts an integrated structural design, achieving dual-channel control while maintaining portability, thus reducing space occupation and operational complexity.

[0026] The first channel 3 has a first air inlet 7 and a first air outlet 8 at each end, and the second channel 4 has a second air inlet 9 and a second air outlet 10 at each end. The first air inlet 7 and the second air outlet 10 are located at opposite ends of one side of the valve body 1, while the first air outlet 8 and the second air inlet 9 are located on the other side of the valve body 1. This cross-layout facilitates symmetrical pipe arrangement and is particularly suitable for bidirectional cross-control scenarios, improving the rationality and aesthetics of the pipeline routing. Compared to traditional same-side air inlet and outlet designs, this structure, through its cross-layout, ensures that the two channels do not interfere with each other on the same side, which is beneficial for system integration and maintenance.

[0027] The valve body 1 has a mounting groove 11 on the side near the first air outlet 8. The valve body 1 is connected to external equipment via the mounting groove 11, and a sealing ring 12 is provided at the bottom of the mounting groove 11. This ensures a reliable airtight connection between the valve body 1 and the external equipment, prevents leakage, and improves safety performance. Traditional structures often use adhesive or rigid fitting methods for installation, resulting in poor sealing. This design, by reserving the mounting groove 11 and embedding the sealing ring 12, effectively compensates for assembly errors and improves the overall sealing quality.

[0028] The knob 2 has a cylindrical structure, with its rotation axis perpendicular to the first channel 3 and the second channel 4. The cylindrical structure facilitates smooth 360° rotation of the knob 2. Combined with the vertically arranged dual channels, it allows for precise control of the on / off state. The channel connection area can be adjusted by rotating the knob, achieving an "adjustable flow rate" function. Compared to traditional flat push-pull or planar rotating structures, the vertical axis arrangement enhances the lever arm effect of the knob 2, making operation more effortless and providing clear feedback.

[0029] Both the first air inlet 7 and the second air outlet 10 are equipped with connectors 13. Connectors 13 are threaded to the valve body 1. The interior of connector 13 is hollow and communicates with a channel, which connects to an external pipeline via connector 13. The type of connector 13 can be flexibly changed as needed (e.g., external thread, quick-connect, snap-fit), adapting to various equipment interface standards and expanding its applicability. Traditional air valve connections are mostly fixed welded structures with poor versatility; this invention adopts a standard threaded structure, which is replaceable, convenient for maintenance, and suitable for modular installation.

[0030] A sealing element 14 is provided between the connector 13 and the valve body 1. Both ends of the sealing element 14 have inclined guide surfaces 15. Both the valve body 1 and the connector 13 have transition sections 16 adapted to the inclined guide surfaces 15. The interference fit between the inclined guide surfaces 15 and the transition sections 16 enhances the airtightness of the valve body 1. This improves sealing performance and facilitates automatic guidance during connector 13 installation, reducing assembly difficulty. Traditional seals use a planar pressing method, which is easily affected by machining accuracy. This design strengthens the interference sealing capability through a double-inclined guide structure, improving vibration resistance and durability.

[0031] The valve body 1 is a one-piece molded structure. This one-piece molding improves the strength and sealing performance of the valve body 1, reducing the risk of potential leakage. Unlike assembled valve bodies, the integral molding reduces fitting errors, lowers manufacturing costs, and improves product consistency and lifespan.

[0032] The valve body 1 has a hemispherical positioning groove 17 in its mounting cavity 5, and a locking groove 18 on the knob 2. An elastic element 19 and a steel ball 20 adapted to the positioning groove 17 are installed in the locking groove 18. When the knob 2 rotates to a predetermined angle, the steel ball 20 springs into the positioning groove 17 and locks the knob 2. This effectively prevents the knob 2 from deflecting due to vibration or accidental contact, improving control accuracy and operational reliability. Compared to a continuous rotation structure without positioning, the added locking structure provides clear feedback on the operating position, making it suitable for segmented control scenarios and enhancing the human-machine interface experience.

[0033] The positioning slots 17 are provided in multiple sets, and the multiple sets of positioning slots 17 are equally spaced along the circumference of the knob. This allows for multi-level control according to system requirements, providing flexible and versatile operation. Compared with traditional single-positioning structures, this design enables multi-state control and is suitable for scenarios involving multi-stage airflow adjustment or complex function switching.

[0034] The through hole 6 is provided with an annular groove 21, and a sealing ring 22 is installed in the annular groove 21. The sealing ring 22 is used to seal the gap between the valve body 1 and the knob 2. It maintains a seal during the rotation of the knob 2, ensuring the airtightness of the valve throughout its operation. The embedded structure of the sealing ring 22 is more durable and reliable than traditional glue sealing or gap pressing methods, adaptable to frequent operation scenarios, and facilitates later replacement and maintenance.

[0035] In practical use, the valve body 1 is connected to the external equipment via the mounting groove 11, and the sealing ring 12 abuts against the external equipment to ensure sealing. The first air inlet 7 and the second air outlet 10 are respectively installed with connectors 13. The inclined guide surfaces 15 at both ends of the sealing element 14 are interference-fitted with the transition section 16 between the valve body 1 and the connector 13 to enhance the airtightness of the valve body 1. The first air inlet 7 and the second air outlet 10 are connected to the external pipeline via the connectors 13. When air is supplied, the knob 2 is rotated, and the steel ball 20 abuts against the compression elastic element 19. The knob 2 rotates, and the steel ball 20 disengages from the positioning groove 17. When the knob 2 is rotated to a predetermined angle, the steel ball 20 springs into the next positioning groove 17 to lock the knob 2. The two sets of through holes 6 are respectively connected to the first channel 3 and the second channel 4 to open the control valve.

[0036] In the first embodiment, the first air inlet 7 and the second air outlet 10 are respectively connected to external pipes. The first channel 3 and the second channel 4 are connected through the connecting cavity 23. The valve body 1 is connected to an external device through the mounting groove 11. The external device is connected to block the connecting cavity 23. External fluid enters the first channel 3 through the first air inlet 7, flows into the connecting cavity 23 through the through hole 6 from the first air outlet 8, and the fluid in the connecting cavity 23 flows into the second channel 4 through the second air inlet 9 and flows out of the valve body 1 through the through hole 6 from the second air outlet 10.

[0037] In the second embodiment, the first air inlet 7, the first air outlet 8, the second air inlet 9 and the second air outlet 10 are respectively connected to an external pipe. External fluid enters the first channel 3 through the first air inlet 7 and flows out from the first air outlet 8 through the through hole 6, forming a first fluid channel. External fluid flows into the second channel 4 through the second air inlet 9 and flows out from the second air outlet 10 through the through hole 6, forming a second fluid channel.

[0038] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A portable dual-channel control valve, comprising a valve body (1) and a knob (2) rotatably connected to the valve body (1); characterized in that: The valve body (1) is provided with a first channel (3) and a second channel (4). The valve body (1) is provided with an installation cavity (5) that connects the first channel (3) and the second channel (4). The knob (2) is inserted into the installation cavity (5) and interferes with the valve body (1). The knob (2) is provided with two sets of through holes (6). The two sets of through holes (6) are used to connect the first channel (3) and the installation cavity (5) and the second channel (4) and the installation cavity (5), respectively. The valve body (1) is provided with a connecting cavity (23) that connects the first channel (3) and the second channel (4). External fluid enters the connecting cavity (23) sequentially through the first channel (3) and the through hole (6). The fluid in the connecting cavity (23) flows out of the valve body (1) sequentially through the through hole (6) and the second channel (4). The knob (2) can be rotated to control the connection or disconnection of the through hole (6) and the channel, thereby realizing the opening and closing control of the dual channels.

2. The portable dual-channel control valve according to claim 1, characterized in that: The first channel (3) is provided with a first air inlet (7) and a first air outlet (8) at both ends, and the second channel (4) is provided with a second air inlet (9) and a second air outlet (10) at both ends. The first air inlet (7) and the second air outlet (10) are located at opposite ends of one side of the valve body (1), and the first air outlet (8) and the second air inlet (9) are located on the other side of the valve body (1).

3. The portable dual-channel control valve according to claim 2, characterized in that: The valve body (1) has an installation groove (11) on the side near the first air outlet (8). The valve body (1) is connected to external equipment through the installation groove (11). A sealing ring (12) is provided at the bottom of the installation groove (11).

4. The portable dual-channel control valve according to claim 1, characterized in that: The knob (2) has a cylindrical structure, and the rotation axis of the knob (2) is perpendicular to the first channel (3) and the second channel (4).

5. A portable dual-channel control valve according to claim 2, characterized in that: Both the first air inlet (7) and the second air outlet (10) are equipped with connectors (13). The connectors (13) are threadedly connected to the valve body (1). The connectors (13) are hollow inside and connected to the channel. The channel is connected to the external pipeline through the connectors (13).

6. A portable dual-channel control valve according to claim 5, characterized in that: A sealing element (14) is provided between the connector (13) and the valve body (1). Both ends of the sealing element (14) are provided with inclined guide surfaces (15). Both the valve body (1) and the connector (13) are provided with transition sections (16) that are adapted to the inclined guide surfaces (15). The inclined guide surfaces (15) and the transition sections (16) are interference-fitted to enhance the airtightness of the valve body (1).

7. A portable dual-channel control valve according to claim 1, characterized in that: The valve body (1) is a one-piece molded structure.

8. A portable dual-channel control valve according to claim 4, characterized in that: The valve body (1) has a hemispherical positioning groove (17) in the mounting cavity (5) and a locking groove (18) on the knob (2). An elastic element (19) and a steel ball (20) that matches the positioning groove (17) are installed in the locking groove (18). When the knob (2) is turned to a predetermined angle, the steel ball (20) springs into the positioning groove (17) to lock the knob (2).

9. A portable dual-channel control valve according to claim 8, characterized in that: The positioning groove (17) is provided in multiple sets, and the multiple sets of positioning grooves (17) are equally spaced along the circumference of the knob (2).

10. A portable dual-channel control valve according to claim 1, characterized in that: The through hole (6) is provided with an annular groove (21), and a sealing ring (22) is installed in the annular groove (21). The sealing ring (22) is used to seal the gap between the valve body (1) and the knob (2).

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