Flow regulating valve

Abstract

The utility model relates to the technical field of regulating valves, in particular to a flow regulating valve. The flow regulating valve comprises a valve seat, a valve sleeve, a valve element, an elastic reset piece and a butt joint piece, the valve seat and the valve sleeve are fixed in the axial direction, the valve element is movably installed in the valve sleeve, a first cavity is formed between the valve element and the valve sleeve, a second cavity is formed in the valve seat, the elastic reset piece is contained in the second cavity, and the elastic reset piece is used for driving the valve element to move in the axial direction. The butt joint piece is in butt joint with the end, away from the elastic reset piece, of the valve element, a liquid inlet is formed in the butt joint piece, a liquid outlet communicated with the first cavity is formed in the valve sleeve, the opening degree of the liquid outlet can be changed through movement of the valve element, and the valve element is provided with a third cavity. And the third cavity is provided with a first communicating opening communicating with the liquid inlet, a second communicating opening communicating with the first cavity and a third communicating opening communicating with the second cavity, the size of the liquid inlet is adjustable, various flow requirements are met, and the specification of the valve element does not need to be changed.

Description

Technical Field

[0001] The utility model relates to the technical field of regulating valves, in particular to a flow regulating valve. Background Art

[0002] A flow regulating valve is a component used to control the flow rate in a hydraulic system and is a key component in the hydraulic system. The flow regulating valve can precisely regulate and control the flow rate by adjusting the size of the throttle orifice. Different throttle orifice sizes correspond to different flow rates, thereby ensuring the stability and reliability of the hydraulic system.

[0003] In the related art, the throttle orifice in the flow regulating valve is arranged on the valve core. Since the valve core needs to be heat-treated during the production process, the throttle orifice on the valve core needs to be machined before the valve core is heat-treated. This results in that in the subsequent production process, if there are different flow rate requirements, it is necessary to change the size of the throttle orifice on the valve core. However, the throttle orifice on the valve core cannot be machined and adjusted again. Therefore, in actual production, it is necessary to produce valve cores with different sizes of throttle orifices, which greatly increases the production difficulty of the valve core and reduces the production efficiency of the valve core.

[0004] Therefore, it is urgent to invent a flow regulating valve to solve the above problems. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a flow regulating valve, which can adjust the size of the liquid inlet hole according to different flow rate requirements, while ensuring the consistency of the production specifications of the valve core, reducing the production cost of the valve core, and improving the production efficiency of the valve core.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] A flow regulating valve, comprising:

[0008] A valve seat;

[0009] A valve sleeve, the valve seat and the valve sleeve are axially fixed;

[0010] A valve core, movably installed in the valve sleeve;

[0011] An elastic reset member, a first chamber is arranged between the valve core and the valve sleeve, a second chamber is arranged in the valve seat, the elastic reset member is accommodated in the second chamber, and the elastic reset member is used to drive the valve core to move along the axial direction; and

[0012] A docking member, which is docked with one end of the valve core away from the elastic reset member;

[0013] The docking member is provided with a liquid inlet, the valve sleeve is provided with a liquid outlet communicated with the first chamber, the movement of the valve core can change the opening degree of the liquid outlet, the valve core has a third chamber, and the third chamber is provided with a first conduction port communicated with the liquid inlet, a second conduction port communicated with the first chamber, and a third conduction port communicated with the second chamber. The size of the liquid inlet is adjustable.

[0014] As an alternative, the flow regulating valve further includes:

[0015] A filter element, disposed at one end of the docking member away from the valve core, and the filter element blocks the liquid inlet.

[0016] As an alternative, a clamping groove is provided at one end of the docking member away from the valve core, and the filter element is fixed in the clamping groove.

[0017] As an alternative, the valve core includes:

[0018] A valve core body; and

[0019] An abutting member, fixed to the valve core body, the abutting member is disposed at one end of the valve core body close to the elastic reset member, and the abutting member abuts against the elastic reset member;

[0020] The valve core body has a first accommodating cavity, the abutting member has a second accommodating cavity, the valve core body has the first conduction port and the second conduction port communicated with the first accommodating cavity, the abutting member has the third conduction port communicated with the second accommodating cavity, the first accommodating cavity and the second accommodating cavity are communicated, and the first accommodating cavity and the second accommodating cavity together form the third chamber.

[0021] As an alternative, a guiding protrusion is provided at one end of the abutting member close to the elastic reset member, the guiding protrusion extends axially in a direction close to the elastic reset member, and at least a part of the elastic reset member is sleeved on the outer periphery of the guiding protrusion.

[0022] As an alternative, an annular groove is circumferentially provided on the outer peripheral wall of the valve core body, and the groove wall of the annular groove and the inner cavity wall of the valve sleeve together enclose the first chamber, and the second conduction port is provided at the bottom of the annular groove.

[0023] As an alternative, at least two second conduction ports are provided on the valve core body, and at least two second conduction ports are circumferentially spaced apart on the bottom of the annular groove of the valve core body.

[0024] As an alternative, the flow regulating valve further includes:

[0025] The clamping part is arranged between the outer peripheral wall of the valve core main body and the inner cavity wall of the valve sleeve, and is used to limit and fix the extreme position of the valve core main body moving axially away from the elastic reset part.

[0026] As an alternative, the docking part is provided with a docking protrusion which extends into the first conduction port. The outer peripheral wall of the docking protrusion abuts against the inner cavity wall of the first conduction port, and the liquid inlet penetrates through the docking protrusion axially.

[0027] As an alternative, the flow regulating valve further includes:

[0028] A sealing part which is respectively sleeved on the outer peripheral wall of the valve seat and the outer peripheral wall of the valve sleeve.

[0029] The beneficial effects of the present utility model:

[0030] The flow regulating valve provided by the present utility model fixes the valve seat and the valve sleeve axially, movably installs the valve core in the valve sleeve, sets a first chamber between the valve sleeve and the valve core, sets a second chamber in the valve seat, and sets the elastic reset part in the second chamber. The docking part is arranged at one end of the valve core away from the elastic reset part, a liquid inlet is arranged on the docking part, and a liquid outlet is arranged on the valve sleeve, so that the movement of the valve core can change the opening degree of the liquid outlet. A third chamber is arranged in the valve core, and a first conduction port communicated with the liquid inlet, a second conduction port communicated with the first chamber, and a third conduction port communicated with the second chamber are opened on the third chamber, so that the liquid inlet can be respectively communicated with the first chamber and the second chamber. Combining with the elastic drive of the elastic reset part can realize the free movement of the valve core in the valve sleeve, ensure the flow stability of the liquid discharged along the liquid outlet. By adjusting the size of the liquid inlet in the docking part, the specific flow rate of the liquid discharged along the liquid outlet can be changed to meet different flow requirements. Moreover, there is no need to change the specification of the valve core, which ensures the specification consistency of the valve core, reduces the production cost of the valve core, and improves the production efficiency of the valve core. Description of the Drawings

[0031] Figure 1 is a schematic cross-sectional view of the flow regulating valve provided by the embodiment of the present utility model;

[0032] Figure 2 is a schematic structural view of the docking part and the filtering part provided by the embodiment of the present utility model.

[0033] In the figure:

[0034] 1. First chamber; 2. Second chamber; 3. Third chamber;

[0035] 100, valve seat; 200, valve core; 210, valve core body; 211, first conduction port; 212, second conduction port; 213, first accommodation cavity; 214, annular groove; 220, abutting member; 221, guiding protrusion; 222, third conduction port; 223, second accommodation cavity;

[0036] 300, valve sleeve; 310, liquid outlet;

[0037] 400, elastic reset member;

[0038] 500, docking member; 510, liquid inlet; 520, docking protrusion; 530, clamping groove;

[0039] 600, filtering member;

[0040] 700, clamping member;

[0041] 800, sealing member. Detailed implementation manners

[0042] To make the technical problems solved by the present utility model, the technical solutions adopted, and the achieved technical effects clearer, the technical solutions of the present utility model will be further described below with reference to the accompanying drawings and through specific implementation manners.

[0043] In the description of the present utility model, unless otherwise clearly defined and limited, the terms "connected", "connected to", and "fixed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0044] In the present utility model, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features therebetween. Moreover, the first feature being "above", "above the", and "on the" of the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "below the", and "under the" of the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the horizontal height of the first feature is lower than that of the second feature.

[0045] In the description of this embodiment, the orientation or positional relationships such as "upper", "lower", "left", "right", etc. are based on the orientation or positional relationships shown in the drawings. They are only for the convenience of description and simplifying the operations, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0046] The flow regulating valve can achieve precise regulation and control of the flow rate by adjusting the size of the throttle orifice. Different throttle orifice sizes correspond to different flow rates, thereby ensuring the stability and reliability of the hydraulic system. In the related art, the throttle orifice in the flow regulating valve is arranged on the valve core. Since the valve core needs to be heat-treated during the production process, the throttle orifice on the valve core needs to be machined before the valve core is heat-treated. This results in that in the subsequent production process, if there are different flow rate requirements, it is necessary to change the size of the throttle orifice on the valve core. However, the throttle orifice on the valve core cannot be machined and adjusted again. Therefore, in actual production, it is necessary to produce valve cores with different sizes of throttle orifices, which greatly increases the production difficulty of the valve core and reduces the production efficiency of the valve core.

[0047] To solve the above problems, as Figure 1 shown, this embodiment provides a flow regulating valve. The flow regulating valve includes a valve seat 100, a valve core 200, a valve sleeve 300, an elastic resetting member 400, and a docking member 500. Among them, the valve seat 100 and the valve sleeve 300 are axially fixed. The valve core 200 is movably installed in the valve sleeve 300. A first chamber 1 is arranged between the valve core 200 and the valve sleeve 300. A second chamber 2 is arranged in the valve seat 100. The elastic resetting member 400 is accommodated in the second chamber 2. The elastic resetting member 400 is used to drive the valve core 200 to move axially. The docking member 500 is docked with one end of the valve core 200 away from the elastic resetting member 400. A liquid inlet 510 is arranged on the docking member 500. A liquid outlet 310 communicated with the first chamber 1 is arranged on the valve sleeve 300. The movement of the valve core 200 can change the opening degree of the liquid outlet 310. The valve core 200 has a third chamber 3. A first communication port 211 communicated with the liquid inlet 510, a second communication port 212 communicated with the first chamber 1, and a third communication port 222 communicated with the second chamber 2 are arranged on the third chamber 3. The size of the liquid inlet 510 is adjustable.

[0048] The flow regulating valve fixes the valve seat 100 and the valve sleeve 300 axially, movably installs the valve core 200 in the valve sleeve 300, sets a first chamber 1 between the valve sleeve 300 and the valve core 200, sets a second chamber 2 in the valve seat 100, and sets an elastic reset member 400 in the second chamber 2. A docking member 500 is arranged at one end of the valve core 200 away from the elastic reset member 400. A liquid inlet 510 is arranged on the docking member 500, and a liquid outlet 310 is arranged on the valve sleeve 300, so that the movement of the valve core 200 can change the opening degree of the liquid outlet 310. A third chamber 3 is arranged in the valve core 200, and a first conduction port 211 communicating with the liquid inlet 510, a second conduction port 212 communicating with the first chamber 1, and a third conduction port 222 communicating with the second chamber 2 are opened on the third chamber 3, which can realize the conduction of the liquid inlet 510 with the first chamber 1 and the second chamber 2 respectively. Combining with the elastic drive of the elastic reset member 400 can realize the free movement of the valve core 200 in the valve sleeve 300, ensure the flow stability of the liquid discharged along the liquid outlet 310, and by adjusting the size of the liquid inlet 510 in the docking member 500, the specific flow rate of the liquid discharged along the liquid outlet 310 can be changed to meet different flow requirements, and there is no need to change the specification of the valve core 200, ensuring the specification consistency of the valve core 200, reducing the production cost of the valve core 200, and improving the production efficiency of the valve core 200.

[0049] It should be noted that in this embodiment, the liquid flows out of the liquid outlet 310 at a pressure of 110 psi to 3500 psi. In other embodiments, the size of the liquid inlet 510 can also be adjusted according to actual needs, and this embodiment does not make specific limitations.

[0050] To further improve the service life of the flow regulating valve, the flow regulating valve further includes a filter element 600. Specifically, the filter element 600 is arranged at one end of the docking member 500 away from the valve core 200, and the filter element 600 blocks the liquid inlet 510. By arranging the filter element 600 at one end of the docking member 500 away from the valve core 200 and using the filter element 600 to block the liquid inlet 510, the liquid flowing into the flow regulating valve along the liquid inlet 510 can be filtered, effectively preventing impurities in the liquid from entering the flow regulating valve along the liquid inlet 510, solving the problem of impurity blockage of the flow regulating valve, and improving the service life of the flow regulating valve.

[0051] Specifically, such as Figure 2As shown, a clamping groove 530 is provided at one end of the docking member 500 away from the valve core 200, and the filtering member 600 is fixed in the clamping groove 530. By providing the clamping groove 530 at one end of the docking member 500 away from the valve core 200 and fixing the filtering member 600 in the clamping groove 530, the effective fixation of the filtering member 600 and the docking member 500 can be achieved, thereby ensuring the full blockage of the liquid inlet 510 by the filtering member 600 and ensuring the filtering effect of the liquid flowing into the fluid regulating valve through the liquid inlet 510 by the filtering member 600.

[0052] In addition, the docking member 500 is provided with a docking protrusion 520. The docking protrusion 520 extends into the first conduction port 211, the outer peripheral wall of the docking protrusion 520 abuts against the inner cavity wall of the first conduction port 211, and the liquid inlet 510 axially penetrates through the docking protrusion 520. By providing the docking protrusion 520 on the docking member 500 that can extend into the first conduction port 211 and abutting the outer peripheral wall of the docking protrusion 520 against the inner cavity wall of the first conduction port 211, the docking effect between the docking member 500 and the valve core 200 can be improved, and the problem of relative movement between the docking member 500 and the valve core 200 is solved.

[0053] Combined with Figure 1The specific structure of the valve core 200 will be described. The valve core 200 includes a valve core main body 210 and an abutting member 220. Among them, the abutting member 220 is fixed to the valve core main body 210. The abutting member 220 is arranged at one end of the valve core main body 210 close to the elastic reset member 400. The abutting member 220 abuts against the elastic reset member 400. A first accommodation cavity 213 is provided in the valve core main body 210, and a second accommodation cavity 223 is provided in the abutting member 220. The valve core main body 210 is provided with a first conduction port 211 and a second conduction port 212 that are communicated with the first accommodation cavity 213. The abutting member 220 is provided with a third conduction port 222 that is communicated with the second accommodation cavity 223. The first accommodation cavity 213 and the second accommodation cavity 223 are communicated with each other, and the first accommodation cavity 213 and the second accommodation cavity 223 together form a third chamber 3. By setting the valve core 200 to include the valve core main body 210 and the abutting member 220 that are fixed to each other, and arranging the abutting member 220 at one end of the valve core main body 210 close to the elastic reset member 400, the problem that the valve core main body 210 is in direct contact with the elastic reset member 400 is solved, and the protection of the valve core main body 210 is improved; by providing the first accommodation cavity 213 in the valve core main body 210 and providing the second accommodation cavity 223 that is communicated with the first accommodation cavity 213 in the abutting member 220, the first accommodation cavity 213 and the second accommodation cavity 223 together form the third chamber 3, and by providing the first conduction port 211 and the second conduction port 212 that are communicated with the first accommodation cavity 213 on the valve core main body 210, and providing the third conduction port 222 that is communicated with the second accommodation cavity 223 on the abutting member 220, it is possible to realize that the liquid enters the third chamber 3 along the liquid inlet 510, enters the first chamber 1 along the second conduction port 212 and then is discharged from the liquid outlet 310, and the liquid enters the third chamber 3 along the liquid inlet 510 and enters the second chamber 2 along the third conduction port 222. The structure is simple and the design is ingenious.

[0054] As an optional solution, an annular groove 214 is circumferentially provided on the outer peripheral wall of the valve core main body 210. The groove wall of the annular groove 214 and the inner cavity wall of the valve sleeve 300 together enclose the first chamber 1. The second conduction port 212 is provided at the bottom of the annular groove 214. By circumferentially providing the annular groove 214 on the outer peripheral wall of the valve core main body 210, when the valve core main body 210 is installed in the valve sleeve 300, the inner cavity wall of the valve sleeve 300 blocks the opening of the annular groove 214, so that the groove wall of the annular groove 214 and the inner cavity wall of the valve sleeve 300 together enclose the first chamber 1. By providing the second conduction port 212 at the bottom of the annular groove 214, the conduction between the third chamber 3 and the first chamber 1 is realized. The structure is simple and the design is ingenious.

[0055] In an alternative embodiment, at least two second communication ports 212 are provided on the valve core body 210, and the at least two second communication ports 212 are circumferentially spaced apart on the bottom of the annular groove 214 along the valve core body 210. By providing at least two second communication ports 212 on the valve core body 210 and circumferentially spacing the at least two second communication ports 212 on the bottom of the annular groove 214 along the valve core body 210, the inflow efficiency of the liquid in the third chamber 3 flowing into the first chamber 1 through the second communication ports 212 can be further improved. It should be noted that in this embodiment, there are 6 second communication ports 212 provided on the valve core body 210, and the 6 second communication ports 212 are circumferentially spaced apart on the bottom of the annular groove 214 along the valve core body 210. In other embodiments, the specific number of the second communication ports 212 can also be arbitrarily adjusted within the range of two or more according to actual needs, and no specific limitation is made in this embodiment.

[0056] In this embodiment, a guiding protrusion 221 is provided at one end of the abutting member 220 close to the elastic reset member 400. The guiding protrusion 221 extends axially towards the elastic reset member 400, and at least a part of the elastic reset member 400 is sleeved on the outer periphery of the guiding protrusion 221. By providing the axially extending guiding protrusion 221 at one end of the abutting member 220 close to the elastic reset member 400 and sleeving at least a part of the elastic reset member 400 on the outer periphery of the guiding protrusion 221, when the elastic reset member 400 is compressed by force, the guiding protrusion 221 can provide guidance for the deformation of the elastic reset member 400, so that the elastic reset member 400 is axially compressed and deformed, ensuring the driving effect of the elastic reset member 400 on the valve core body 210. It should be noted that in this embodiment, the elastic reset member 400 is a spring, the spring is accommodated in the second chamber 2, one end of the spring abuts against the abutting member 220, and the other end of the spring abuts against the chamber wall of the second chamber 2, and the spring can generate axial deformation. The spring structure is simple and convenient for disassembly and assembly. In other embodiments, the elastic reset member 400 can also be other elastic structures, and no specific limitation is made in this embodiment.

[0057] In an alternative embodiment, the flow regulating valve further includes a clamping member 700. Among them, the clamping member 700 is arranged between the outer peripheral wall of the valve core body 210 and the inner cavity wall of the valve sleeve 300, and the clamping member 700 is used to limit and fix the extreme position of the valve core body 210 moving axially away from the elastic reset member 400. By providing the clamping member 700 to limit the extreme position of the valve core body 210 moving axially away from the elastic reset member 400, the valve core body 210 can be prevented from detaching from the valve sleeve 300, ensuring the normal operation of the valve core body 210.

[0058] As an alternative, the flow regulating valve further includes a seal 800, wherein the seal 800 is sleeved on the outer peripheral wall of the valve seat 100 and the outer peripheral wall of the valve sleeve 300 respectively. By sleeving the seal 800 on the outer peripheral wall of the valve seat 100 and the outer peripheral wall of the valve sleeve 300 respectively, when the flow regulating valve is installed in the actual working position, an effective sealed connection between the flow regulating valve and the external device can be ensured. It should be noted that, in this embodiment, the seal 800 is an O-ring. The O-ring has a simple structure, good sealing effect and is convenient for disassembly and assembly. In other embodiments, the seal 800 can also be other structures with sealing functions, which are not specifically limited in this embodiment.

[0059] Obviously, the above embodiments of the present invention are merely examples for clearly explaining the present invention, rather than limiting the implementation manners of the present invention. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. Flow control valve, characterized in that: include: Valve seat (100); A valve sleeve (300), wherein the valve seat (100) and the valve sleeve (300) are fixed in the axial direction; A valve core (200) is movably mounted in the valve sleeve (300); an elastic return member (400), wherein a first chamber (1) is provided between the valve core (200) and the valve sleeve (300), a second chamber (2) is provided in the valve seat (100), the elastic return member (400) is accommodated in the second chamber (2), and the elastic return member (400) is used to drive the valve core (200) to move along the axial direction; as well as A docking member (500) docking with an end of the valve core (200) away from the elastic return member (400); The docking member (500) is provided with a liquid inlet (510), the valve sleeve (300) is provided with a liquid outlet (310) which is in communication with the first chamber (1), the movement of the valve core (200) can change the opening of the liquid outlet (310), the valve core (200) has a third chamber (3), the third chamber (3) is provided with a first conduction port (211) which is in communication with the liquid inlet (510), a second conduction port (212) which is in communication with the first chamber (1), and a third conduction port (222) which is in communication with the second chamber (2), and the size of the liquid inlet (510) is adjustable.

2. The flow control valve according to claim 1, characterized in that: The flow regulating valve also includes: A filter element (600) is arranged at an end of the docking element (500) away from the valve core (200), and the filter element (600) blocks the liquid inlet (510).

3. The flow control valve according to claim 2, characterized in that: A clamping groove (530) is provided at one end of the docking member (500) away from the valve core (200), and the filter member (600) is fixed in the clamping groove (530).

4. The flow control valve according to any one of claims 1 to 3, characterized in that: The valve core (200) comprises: A valve core body (210); and an abutment member (220) fixed to the valve core body (210), the abutment member (220) being arranged at one end of the valve core body (210) close to the elastic return member (400), the abutment member (220) abutting against the elastic return member (400); The valve core body (210) has a first accommodating chamber (213) therein, the abutting member (220) has a second accommodating chamber (223) therein, the valve core body (210) has the first conducting port (211) and the second conducting port (212) which are in communication with the first accommodating chamber (213), the abutting member (220) has the third conducting port (222) which is in communication with the second accommodating chamber (223), the first accommodating chamber (213) and the second accommodating chamber (223) are in communication with each other, and the first accommodating chamber (213) and the second accommodating chamber (223) together constitute the third chamber (3).

5. The flow control valve according to claim 4, characterized in that: A guide protrusion (221) is provided at one end of the abutment member (220) close to the elastic return member (400), and the guide protrusion (221) extends along the axial direction toward the elastic return member (400), and the elastic return member (400) is at least partially sleeved on the outer periphery of the guide protrusion (221).

6. The flow control valve according to claim 4, characterized in that: An annular groove (214) is circumferentially arranged on the outer peripheral wall of the valve core body (210); the groove wall of the annular groove (214) and the inner cavity wall of the valve sleeve (300) together enclose the first chamber (1); and the second conducting port (212) is arranged at the bottom of the annular groove (214).

7. The flow control valve according to claim 6, characterized in that: At least two second conducting ports (212) are arranged on the valve core body (210), and the at least two second conducting ports (212) are arranged at intervals along the circumference of the valve core body (210) at the bottom of the annular groove (214).

8. The flow control valve according to claim 4, characterized in that: The flow regulating valve also includes: The clamping member (700) is arranged between the outer peripheral wall of the valve core body (210) and the inner cavity wall of the valve sleeve (300), and the clamping member (700) is used to limit and fix the valve core body (210) to an extreme position of movement along the axial direction away from the elastic return member (400).

9. The flow control valve according to any one of claims 1 to 3, characterized in that: The docking piece (500) is provided with a docking protrusion (520), the docking protrusion (520) extends into the first conducting port (211), the outer peripheral wall of the docking protrusion (520) abuts against the inner cavity wall of the first conducting port (211), and the liquid inlet (510) passes through the docking protrusion (520) along the axial direction.

10. The flow control valve according to any one of claims 1 to 3, characterized in that: The flow regulating valve also includes: A sealing member (800) is respectively sleeved on the outer peripheral wall of the valve seat (100) and the outer peripheral wall of the valve sleeve (300).

Images