Two-way valve

Abstract

The utility model relates to the technical field of valves, in particular to a two-way valve which comprises a valve body and a valve element, a flow channel is arranged in the valve body, and the valve element is arranged in the flow channel and used for controlling connection or disconnection of the flow channel. The valve element comprises a valve seat, a valve element plug, a valve rod and a driver. The valve seat is provided with a first port and a second port in a penetrating mode. The driver drives the valve rod to drive the valve element plug to move in the valve seat, part of or all channels can be controlled to be opened by controlling the relative distance between the valve element plug and the connecting position of the first port and the second port, flow channel communication and flow adjustment are achieved, and then the flow of fluid in the flow channel is accurately adjusted. And diversified requirements on flow under different working conditions are met.

Description

Technical Field

[0001] This utility model relates to the field of valve technology, and in particular to a two-way valve. Background Technology

[0002] In industrial production, fluid control is a crucial step in numerous processes, spanning multiple fields such as chemical, petroleum, pharmaceutical, and food industries. With the continuous improvement of industrial automation, the performance requirements for fluid control equipment are becoming increasingly stringent. While traditional two-way valves can achieve flow channel connection and disconnection control to a certain extent, they have many shortcomings in practical applications.

[0003] For example, traditional two-way valves have low flow control accuracy, making it difficult to meet the demands of precise flow regulation in modern industrial production. In some chemical reaction processes with extremely strict flow requirements, flow fluctuations can lead to unstable reaction conditions, affecting product quality and reaction efficiency, thus necessitating improvements. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by providing a two-way valve. By driving the valve stem with an actuator, the valve core plug is displaced within the valve seat. By controlling the relative distance between the valve core plug and the connection between the first and second ports, the valve can open part or all of the channels, thereby achieving flow channel connectivity and flow regulation. This enables precise regulation of the fluid flow rate within the flow channel, meeting diverse flow requirements under different operating conditions.

[0005] To achieve the above objectives, this utility model provides a two-way valve, comprising a valve body and a valve core.

[0006] The valve body is provided with a flow channel, and the valve core is disposed in the flow channel to control the connection or disconnection of the flow channel;

[0007] The valve core includes a valve seat, valve core plug, valve stem, and actuator.

[0008] The valve seat is provided with a first port and a second port through it;

[0009] The valve core plug is disposed inside the valve seat and is used to control the opening or closing of the first port and the second port;

[0010] The valve stem is connected between the valve core plug and the actuator;

[0011] The actuator drives the valve core plug to move along the inside of the valve seat via the valve stem.

[0012] Preferably, a stop step is provided in the flow channel, and the valve seat is threadedly connected to the flow channel and abuts against the stop step;

[0013] The outer wall of the valve seat is provided with a circumferential sealing groove, and an outer sealing ring is provided in the circumferential sealing groove. The outer sealing ring abuts against the inner wall of the flow channel.

[0014] Preferably, a control chamber is provided between the first port and the second port of the valve seat, and the actuator drives the valve core plug to move closer to or away from the control chamber through the valve stem.

[0015] Preferably, the valve core plug includes a first fixing part, an abutting part, an interference fit part, and a second fixing part;

[0016] The valve stem is provided with a first fixing groove, a protrusion, and a second fixing groove.

[0017] The first fixing part is fixed to the first fixing groove, the abutting part and the interference part are both fixed to the protrusion, and the second fixing part is fixed to the second fixing groove.

[0018] Preferably, a first sealing groove is provided at both ends of the valve stem, and a first sealing ring is provided in the first sealing groove, and the first sealing ring abuts against the inner wall of the valve seat.

[0019] A return spring is provided at one end of the valve stem near the actuator. The return spring abuts against the outside of the first sealing groove and between the valve seat to reset the valve stem.

[0020] Preferably, the valve seat includes a first valve chamber and a second valve chamber, wherein the first valve chamber and the second valve chamber are threadedly connected;

[0021] A sealing sleeve is provided at the threaded connection between the first valve cavity and the second valve cavity, and the sealing sleeve is threadedly connected to the first valve cavity.

[0022] Preferably, a second sealing groove is provided between the sealing sleeve and the first valve cavity, and a second sealing ring is provided in the second sealing groove, the second sealing ring abutting against the first valve cavity.

[0023] Preferably, the second valve cavity is provided with an inner sleeve, a skeleton, and a sliding sleeve;

[0024] The inner sleeve is disposed inside the second valve cavity;

[0025] The skeleton passes through the inner sleeve, the sliding sleeve is disposed at the end of the skeleton near the first valve cavity, the valve stem is slidably connected to the sliding sleeve, and the actuator is fixed at the end of the skeleton away from the sliding sleeve.

[0026] Preferably, the valve seat includes an end cap, the end cap being provided with a connection terminal, the connection terminal being electrically connected to the driver.

[0027] Preferably, a sealing cap is provided at the end of the valve seat opposite to the end cover, and the sealing cap is threadedly connected to the valve seat;

[0028] The sealing cover is provided with a third sealing groove, and a third sealing ring is provided in the third sealing groove. The third sealing ring abuts against the valve seat.

[0029] The beneficial effects of this utility model are as follows: This utility model drives the valve stem to move the valve core plug in the valve seat by driving the driver. By controlling the relative distance between the valve core plug and the connection between the first port and the second port, it can control the opening of part or all of the channel, realize the flow channel connection and flow regulation, and thus realize the precise regulation of the fluid flow in the flow channel to meet the diverse flow requirements under different working conditions. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the structure of this utility model.

[0031] Figure 2 This is a cross-sectional structural diagram of the present invention.

[0032] Figure 3 This is a cross-sectional view of the valve core of this utility model.

[0033] Figure 4 This is a cross-sectional view of the valve core plug and valve stem of this utility model.

[0034] The reference numerals in the figures include:

[0035] 1. Valve body; 11. Flow channel; 12. Stop step; 13. Circumferential sealing groove; 14. Outer sealing ring; 15. Control chamber;

[0036] 2. Valve core; 21. Valve seat; 201. First port; 202. Second port; 203. First valve chamber; 204. Second valve chamber; 211. Sealing sleeve; 212. Second sealing groove; 2121. Second sealing ring; 213. Inner sleeve; 214. Skeleton; 215. Sliding sleeve; 216. End cap; 217. Connecting terminal; 218. Sealing cover; 2181. Third sealing groove; 2182. Third sealing ring; 22. Valve core plug; 221. First fixing part; 222. Abutment part; 223. Interference fit part; 224. Second fixing part; 23. Valve stem; 231. First fixing groove; 232. Protrusion; 233. Second fixing groove; 234. First sealing groove; 235. First sealing ring; 236. Return spring; 24. Actuator. Detailed Implementation

[0037] The present invention will now be described in detail with reference to the accompanying drawings.

[0038] like Figures 1 to 4As shown, a two-way valve of this utility model includes a valve body 1 and a valve core 2.

[0039] The valve body 1 is provided with a flow channel 11, and the valve core 2 is disposed in the flow channel 11 to control the connection or disconnection of the flow channel 11.

[0040] Valve core 2 includes valve seat 21, valve core plug 22, valve stem 23, and actuator 24.

[0041] The valve seat 21 is provided with a first port 201 and a second port 202 through it;

[0042] The valve core plug 22 is disposed inside the valve seat 21 and is used to control the opening or closing of the first port 201 and the second port 202;

[0043] The valve stem 23 is connected between the valve core plug 22 and the actuator 24;

[0044] The actuator 24 drives the valve core plug 22 to move along the inside of the valve seat 21 via the valve stem 23.

[0045] Specifically, the valve stem 23 is driven by the actuator 24 to move the valve core plug 22 within the valve seat 21. By controlling the relative distance between the valve core plug 22 and the connection between the first port 201 and the second port 202, the opening of part or all of the channel can be controlled, thereby realizing the connection of the flow channel 11 and the flow rate regulation. This enables precise regulation of the fluid flow rate within the flow channel 11, meeting the diverse flow rate requirements under different working conditions.

[0046] The actuator 24 can be a pneumatic, electric, hydraulic or electromagnetic actuator.

[0047] The valve seat 21, valve core plug 22, valve stem 23 and actuator 24 are integrated in the valve core 2 structure and then set in the flow channel 11 of the valve body 1. The overall structure is compact and occupies little space, making it easy to install and use in limited spaces. It is especially suitable for industrial scenarios with strict requirements for installation space.

[0048] The presence of the actuator 24 enables the displacement control of the valve core plug 22 to be automated through electrical signals and other means, without the need for manual intervention. This not only makes operation convenient but also allows for integration with modern automated control systems, enabling remote control and automated production processes, thereby improving production efficiency.

[0049] In use, the actuator 24 acts as a power source, transmitting driving force to the valve core plug 22 via the valve stem 23. The valve core plug 22 moves within the valve seat 21 in a specific direction, changing the relative position of the valve core plug 22 with the connection points of the first port 201 and the second port 202, thereby controlling the opening and closing states of the first port 201 and the second port 202. When the valve core plug 22 abuts against the connection point of the first port 201 and the second port 202, it completely blocks the fluid passage between the first port 201 and the second port 202, thus disconnecting the flow channel 11. Controlling the relative distance between the valve core plug 22 and the connection point of the first port 201 and the second port 202 can control the opening of part or all of the passage, thereby achieving the connection of the flow channel 11 and flow regulation.

[0050] like Figure 2 As shown, in this embodiment, a stop step 12 is provided in the flow channel 11. The valve seat 21 is threadedly connected to the flow channel 11 and abuts against the stop step 12. The threaded connection fixes the valve seat 21 to the flow channel 11, and the stop step 12 provides a precise positioning reference, limiting the axial position of the valve seat 21 in the flow channel 11. This ensures that the valve seat 21 is firmly installed in the flow channel 11 and will not loosen or shift due to external forces such as fluid impact. At the same time, it ensures that the valve seat 21 is accurately positioned in the flow channel 11, which is beneficial to the cooperation between the valve core plug 22 and the valve seat 21, and ensures the stability of fluid control.

[0051] The outer wall of the valve seat 21 is provided with a circumferential sealing groove 13, and an outer edge sealing ring 14 is disposed within the circumferential sealing groove 13. The outer edge sealing ring 14 abuts against the inner wall of the flow channel 11. The circumferential sealing groove 13 provides installation space for the outer edge sealing ring 14, which forms an elastic seal between the valve seat 21 and the inner wall of the flow channel 11, filling the tiny gap between them. This effectively prevents fluid leakage from the connection between the valve seat 21 and the flow channel 11, ensuring normal fluid flow within the flow channel 11, preventing resource waste and environmental pollution caused by leakage, and improving the safety and reliability of the two-way valve.

[0052] like Figure 2 As shown, in this embodiment, the valve seat 21 is provided with a control chamber 15 between the first port 201 and the second port 202. The driver 24 drives the valve core plug 22 to move closer to or away from the control chamber 15 through the valve stem 23, thereby controlling the on / off state between the first port 201 and the second port 202.

[0053] As a critical area for fluid flow, the positional change of the valve core plug 22 in the control chamber 15 directly affects the fluid flow state in this area. By precisely controlling the movement of the valve stem 23 through the actuator 24, the valve core plug 22 can be accurately positioned within the control chamber 15, thereby achieving precise control over the on / off state between the first port 201 and the second port 202, meeting the flexible requirements for fluid on / off control under different operating conditions.

[0054] like Figure 4 As shown, the valve core plug 22 in this embodiment includes a first fixing part 221, an abutting part 222, an interference part 223, and a second fixing part 224;

[0055] The valve stem 23 is provided with a first fixing groove 231, a protrusion 232, and a second fixing groove 233.

[0056] The first fixing part 221 is fixed to the first fixing groove 231, the abutting part 222 and the interference part 223 are both fixed to the protrusion 232, and the second fixing part 224 is fixed to the second fixing groove 233.

[0057] Specifically, the first fixing part 221 of the valve core plug 22 is fixed to the first fixing groove 231 of the valve stem 23, and the second fixing part 224 is fixed to the second fixing groove 233 of the valve stem 23. The first fixing groove 231 and the second fixing groove 233 provide dedicated mounting positions for the first fixing part 221 and the second fixing part 224, and the connection is achieved through the mating structure of the groove and the fixing part. This ensures that the valve core plug 22 is axially fixed on the valve stem 23, prevents axial movement of the valve core plug 22 on the valve stem 23, ensures the stability of the connection between the valve core plug 22 and the valve stem 23, and enables the valve core plug 22 to accurately respond to the driving action of the valve stem 23.

[0058] Both the abutting portion 222 and the interference fit portion 223 of the valve core plug 22 are fixed to the protrusion 232 of the valve stem 23. The abutting portion 222 and the protrusion 232 abut against each other, increasing the contact area, while the interference fit portion 223 and the protrusion 232 generate greater friction. This further improves the connection strength between the valve core plug 22 and the valve stem 23, effectively resisting fluid impact, preventing relative rotation or loosening between the valve core plug 22 and the valve stem 23, and ensuring reliable operation of the valve core plug 22 under complex working conditions.

[0059] like Figure 3 As shown, in this embodiment, both ends of the valve stem 23 are provided with a first sealing groove 234, and a first sealing ring 235 is provided in the first sealing groove 234. The first sealing ring 235 abuts against the inner wall of the valve seat 21. The first sealing groove 234 provides installation space for the first sealing ring 235, and the first sealing ring 235 forms an elastic seal between the valve stem 23 and the inner wall of the valve seat 21, filling the gap. This effectively prevents fluid leakage from the connection between the valve stem 23 and the valve seat 21, ensuring normal fluid flow in the flow channel 11 and improving system safety and reliability.

[0060] A return spring 236 is provided at one end of the valve stem 23 near the actuator 24. The return spring 236 abuts against the outer side of the first sealing groove 234 and the valve seat 21 to reset the valve stem 23.

[0061] Specifically, when the valve stem 23 is moved by the actuator 24, the return spring 236 generates a restoring force due to elastic deformation. When the actuator 24 stops driving, the restoring force of the return spring 236 causes the valve stem 23 to automatically return to its initial position, ensuring that the valve core plug 22 can accurately return to its initial state in the control chamber 15, thus ensuring the stability and reliability of the two-way valve.

[0062] like Figure 3 As shown, the valve seat 21 in this embodiment includes a first valve chamber 203 and a second valve chamber 204, which are threadedly connected. The threaded connection allows the first valve chamber 203 and the second valve chamber 204 to be screwed together, achieving a detachable connection. This facilitates the manufacturing, transportation, installation, and maintenance of the valve seat 21.

[0063] A sealing sleeve 211 is provided at the threaded connection between the first valve chamber 203 and the second valve chamber 204, and the sealing sleeve 211 is threadedly connected to the first valve chamber 203. The sealing sleeve 211 is disposed between the first valve chamber 203 and the second valve chamber 204 to fill the tiny gap between them. This effectively prevents fluid leakage from the connection between the first valve chamber 203 and the second valve chamber 204, ensuring the sealing performance inside the valve seat 21.

[0064] like Figure 3 As shown, in this embodiment, a second sealing groove 212 is provided between the sealing sleeve 211 and the first valve cavity 203. A second sealing ring 2121 is disposed within the second sealing groove 212, and the second sealing ring 2121 abuts against the first valve cavity 203. The second sealing groove 212 provides installation and positioning space for the second sealing ring 2121. The second sealing ring 2121 forms an elastic sealing layer between the sealing sleeve 211 and the first valve cavity 203, filling the tiny gap between them through its own elastic deformation. This further improves the sealing performance at the connection between the sealing sleeve 211 and the first valve cavity 203, effectively preventing fluid leakage from this connection.

[0065] like Figure 2 As shown, the second valve chamber 204 in this embodiment is provided with an inner sleeve 213, a skeleton 214 and a sliding sleeve 215;

[0066] The inner sleeve 213 is disposed within the second valve cavity 204;

[0067] The frame 214 passes through the inner sleeve 213, the sliding sleeve 215 is disposed at one end of the frame 214 near the first valve cavity 203, the valve stem 23 is slidably connected to the sliding sleeve 215, and the driver 24 is fixed to one end of the frame 214 away from the sliding sleeve 215.

[0068] Specifically, the inner sleeve 213 and the skeleton 214 constitute a stable support structure, and the sliding sleeve 215, as the direct contact component of the valve stem 23, has a smooth inner wall that is adapted to the outer diameter of the valve stem 23. This ensures that the valve stem 23 can move stably along a predetermined axial direction during sliding, reducing the offset and wobbling of the valve stem 23, improving the accuracy and reliability of the valve stem 23's action, and ensuring the precision of the valve core plug 22 in controlling the fluid flow.

[0069] The end of the frame 214 furthest from the sliding sleeve 215 serves as the fixed position for the actuator 24. The frame 214 itself possesses sufficient strength and rigidity to withstand the forces and vibrations generated during the operation of the actuator 24. This provides a stable mounting base for the actuator 24, ensuring that the actuator 24 can stably drive the valve stem 23 and preventing malfunctions due to unstable installation during operation.

[0070] like Figure 2 and Figure 3 As shown, the valve seat 21 in this embodiment includes an end cap 216, the end cap 216 is provided with a connection terminal 217, and the connection terminal 217 is electrically connected to the driver 24.

[0071] Specifically, the end cap 216, as part of the valve seat 21, provides a mounting position for the connection terminal 217. The connection terminal 217 establishes an electrical path with the driver 24 via electrical connections such as wires or circuit boards. This enables the driver 24 to be electrically connected to external power supplies, control systems, and other equipment, providing the driver 24 with the necessary power and control signals for operation.

[0072] like Figure 2 As shown, in this embodiment, a sealing cap 218 is provided at the end of the valve seat 21 away from the end cap 216, and the sealing cap 218 is threadedly connected to the valve seat 21.

[0073] The sealing cover 218 is provided with a third sealing groove 2181, and a third sealing ring 2182 is provided in the third sealing groove 2181. The third sealing ring 2182 abuts against the valve seat 21.

[0074] Specifically, the threaded connection ensures a tight fit between the sealing cap 218 and the valve seat 21. The third sealing ring 2182 is deformed by compression within the third sealing groove 2181, filling the minute gap between the sealing cap 218 and the valve seat 21. This effectively prevents fluid leakage from the end of the valve seat 21, ensuring the stability and reliability of fluid flow inside the valve seat 21.

[0075] The threaded connection makes it easier to install and remove the sealing cover 218. The third sealing groove 2181 provides installation positioning for the third sealing ring 2182, which facilitates the installation and replacement of the third sealing ring 2182.

[0076] The above description is only a preferred embodiment of this utility model. For those skilled in the art, there will be changes in the specific implementation method and application scope based on the idea of ​​this utility model. The content of this specification should not be construed as a limitation of this utility model.

Claims

1. A two-way valve, characterized in that, It includes a valve body (1) and a valve core (2). The valve body (1) is provided with a flow channel (11), and the valve core (2) is provided in the flow channel (11) to control the connection or disconnection of the flow channel (11); The valve core (2) includes a valve seat (21), a valve core plug (22), a valve stem (23), and an actuator (24). The valve seat (21) is provided with a first port (201) and a second port (202) through it; The valve core plug (22) is disposed inside the valve seat (21) and is used to control the opening or closing of the first port (201) and the second port (202); The valve stem (23) is connected between the valve core plug (22) and the actuator (24); The actuator (24) drives the valve core plug (22) to move along the inside of the valve seat (21) via the valve stem (23).

2. A two-way valve according to claim 1, characterized in that, A stop step (12) is provided inside the flow channel (11), and the valve seat (21) is threadedly connected to the flow channel (11) and abuts against the stop step (12); The valve seat (21) has a circumferential sealing groove (13) on its outer wall, and an outer sealing ring (14) is provided in the circumferential sealing groove (13). The outer sealing ring (14) abuts against the inner wall of the flow channel (11).

3. A two-way valve according to claim 1, characterized in that, The valve seat (21) is provided with a control chamber (15) between the first port (201) and the second port (202). The driver (24) drives the valve core plug (22) to move closer to or away from the control chamber (15) through the valve stem (23).

4. A two-way valve according to claim 1, characterized in that, The valve core plug (22) includes a first fixing part (221), an abutting part (222), an interference part (223), and a second fixing part (224). The valve stem (23) is provided with a first fixing groove (231), a protrusion (232) and a second fixing groove (233). The first fixing part (221) is fixed to the first fixing groove (231), the abutting part (222) and the interference part (223) are both fixed to the protrusion (232), and the second fixing part (224) is fixed to the second fixing groove (233).

5. A two-way valve according to claim 1, characterized in that, The valve stem (23) is provided with a first sealing groove (234) at both ends, and a first sealing ring (235) is provided in the first sealing groove (234). The first sealing ring (235) abuts against the inner wall of the valve seat (21). A return spring (236) is provided at one end of the valve stem (23) near the actuator (24). The return spring (236) abuts against the outer side of the first sealing groove (234) and the valve seat (21) to reset the valve stem (23).

6. A two-way valve according to claim 1, characterized in that, The valve seat (21) includes a first valve chamber (203) and a second valve chamber (204), wherein the first valve chamber (203) and the second valve chamber (204) are threadedly connected; A sealing sleeve (211) is provided at the threaded connection between the first valve chamber (203) and the second valve chamber (204), and the sealing sleeve (211) is threadedly connected to the first valve chamber (203).

7. A two-way valve according to claim 6, characterized in that, A second sealing groove (212) is provided between the sealing sleeve (211) and the first valve cavity (203), and a second sealing ring (2121) is provided in the second sealing groove (212), and the second sealing ring (2121) abuts against the first valve cavity (203).

8. A two-way valve according to claim 6, characterized in that, The second valve chamber (204) is provided with an inner sleeve (213), a skeleton (214) and a sliding sleeve (215); The inner sleeve (213) is disposed inside the second valve cavity (204); The frame (214) passes through the inner sleeve (213), the sliding sleeve (215) is disposed at one end of the frame (214) near the first valve chamber (203), the valve stem (23) is slidably connected to the sliding sleeve (215), and the driver (24) is fixed at one end of the frame (214) away from the sliding sleeve (215).

9. A two-way valve according to claim 1, characterized in that, The valve seat (21) includes an end cap (216) with a connection terminal (217) electrically connected to the driver (24).

10. A two-way valve according to claim 9, characterized in that, A sealing cap (218) is provided at the end of the valve seat (21) away from the end cap (216), and the sealing cap (218) is threadedly connected to the valve seat (21); The sealing cover (218) is provided with a third sealing groove (2181), and a third sealing ring (2182) is provided in the third sealing groove (2181). The third sealing ring (2182) abuts against the valve seat (21).

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