CN209892792U

CN209892792U - Flow regulating valve

Info

Publication number: CN209892792U
Application number: CN201920187224.6U
Authority: CN
Inventors: 詹征
Original assignee: TAIZHOU TONGSHENG BRASS Co Ltd
Current assignee: TAIZHOU TONGSHENG BRASS Co Ltd
Priority date: 2019-02-02
Filing date: 2019-02-02
Publication date: 2020-01-03
Anticipated expiration: 2029-02-02

Abstract

The utility model provides a flow control valve belongs to mechanical technical field. The three-way flow regulating valve solves the problem that the liquid outlet flow of two liquid outlet pipes of the existing three-way flow regulating valve cannot be accurately regulated at the same time. This flow control valve is including the valve body that has a feed liquor pipe and two drain pipes, is equipped with water cavity and feed liquor pipe and two drain pipes in the valve body and all is linked together with water cavity, is equipped with the case in the water cavity, is equipped with the liquid channel that is independent of water cavity between feed liquor pipe and one of them drain pipe, leads to being equipped with in the liquid channel and can rotating regulating part, can adjust the medium flow through the liquid channel when the regulating part rotates. The liquid outlet device has the advantages of simple structure, capability of accurately adjusting the liquid outlet flow of the two liquid outlet pipes simultaneously, convenience in adjustment and the like.

Description

Flow regulating valve

Technical Field

The utility model belongs to the technical field of machinery, a flow control valve is related to.

Background

The valve is widely applied in pipeline engineering, and the common valve is a straight-through type and comprises a valve body, a valve core, a valve rod and a hand wheel, wherein the hand wheel drives the valve rod and the valve core to rotate so as to achieve the purpose of opening and closing the valve. However, the straight-through valve can only realize one inlet and one outlet, is suitable for simple household pipeline systems, and is not suitable for industrial pipeline systems with complex design, so that a three-way flow regulating valve appears in the market.

The three-way flow regulating valve generally comprises a valve body with a liquid inlet pipe and two liquid outlet pipes, a water passing cavity is arranged in the valve body, the liquid inlet pipe and the two liquid outlet pipes are communicated with the water passing cavity, a valve core used for controlling the liquid inlet pipe to be communicated or separated with the two liquid outlet pipes is arranged in the water passing cavity, and a worker can realize the regulation of the liquid outlet flow of the two liquid outlet pipes by rotating the valve core, for example, a three-way valve with a micro-regulation function disclosed in the application number 201820165634.6, a flow divider with a flow regulation function disclosed in the application number 201610349846.5, a three-way flow regulating valve disclosed in the application number 201521029643.5 and the like.

However, the three-way flow control valve with the existing structure also has obvious defects: when the liquid outlet flow of one of the liquid outlet pipes is smaller, the general operation should be that a worker rotates the valve core to enable the liquid outlet pipe to distribute more flows, but the rotation of the valve core also inevitably causes the liquid outlet flow of the other liquid outlet pipe to become smaller, that is to say, the existing three-way flow regulating valve cannot accurately regulate the liquid outlet flows of the two liquid outlet pipes at the same time. Therefore, the conventional method is to compromise the liquid outlet flow rate required by the two liquid outlet pipes, namely, the valve core is rotated to a proper position to enable the liquid outlet flow rate of the two liquid outlet pipes to be close to the required flow rate value, but the adjusting mode has the defect that the liquid outlet flow rate of the two liquid outlet pipes is not accurate.

Disclosure of Invention

The utility model aims at the above-mentioned problem that prior art exists, provide a flow control valve, solved the technical problem that the liquid outlet flow of two drain pipes of three-way control valve can't be accurate simultaneously adjusted.

The purpose of the utility model can be realized by the following technical proposal:

the utility model provides a flow control valve, is including the valve body that has a feed liquor pipe and two drain pipes, is equipped with in the valve body and crosses water cavity and feed liquor pipe and two drain pipes and all be linked together with crossing the water cavity, crosses the intracavity and is equipped with the case, its characterized in that, feed liquor pipe and one of them drain pipe between be equipped with the liquid channel that leads to that is independent of the water cavity, be equipped with in the liquid channel and can rotate the regulating part, can adjust the medium flow through the liquid channel when the regulating part rotates.

When the medium distributor is used, a medium is supplied by the liquid inlet pipe, and is divided by the two liquid outlet pipes and is discharged outwards, and meanwhile, a worker can distribute the medium flowing into the water passing cavity by rotating the valve core so that the two liquid outlet pipes supply corresponding medium flow outwards. When the flow is regulated, a worker can firstly utilize the valve core to regulate the liquid outlet flow of the liquid outlet pipe which is not connected with the liquid channel to reach a required value, and the valve core is loosened and kept still after the liquid outlet flow of the liquid outlet pipe is regulated.

If another drain pipe appears after utilizing the case to adjust and the circumstances that the play liquid flow of the drain pipe that links to each other with logical liquid way promptly appears, the staff can rotate the adjusting part and open logical liquid way this moment, because logical liquid way is independent of the water cavity setting, consequently the medium in the inlet pipe just can borrow by leading to in the liquid way directly flows into this drain pipe, the play liquid flow of this drain pipe just can increase like this. Simultaneously, the opening degree that leads to the liquid way when regulating part pivoted angle is different is exactly the medium flow that flows from leading to the liquid way and is different, and the staff so long as just can control the medium flow that directly flows into this drain pipe from the feed liquor pipe through the control to regulating part turned angle to the realization is to this drain pipe play liquid flow's accurate regulation. That is to say, with the help of the use of regulating part in the case cooperation for this staff can carry out the accurate regulation simultaneously to the play liquid flow of two drain pipes of this flow control valve.

In foretell flow control valve, the valve body on be equipped with the mounting hole, lead to the liquid way side to passing the mounting hole, the regulating part is located the mounting hole and regulating part and mounting hole axial spacing, the regulating part includes operating head and the regulating part that links firmly mutually with the operating head, the operating head is located the port department of mounting hole and forms sealedly, the regulating part is located the mounting hole and leads to liquid way coincidence department mutually.

The regulating part includes the operating head and the regulation portion that links firmly with the operating head, and the operating head is located the port of mounting hole and can makes things convenient for the staff to operate, and the regulation portion is located the mounting hole and leads to liquid channel coincidence department mutually, and the staff only needs to rotate the operating head just so can make the regulation portion rotate and open the liquid channel and adjust the medium flow through leading to the liquid channel like this to accurate the regulation when realizing two drain pipes play liquid flow.

In the flow regulating valve, the regulating part is of a square plate-shaped structure, two water stop surfaces arranged in parallel and convex cambered surfaces connected between the two water stop surfaces respectively are arranged on the outer side of the regulating part, the area of each water stop surface is larger than the sectional area of the liquid passage, and the two convex cambered surfaces are abutted against the hole wall of the mounting hole.

The adjusting part is of a square plate-shaped structure, two parallel water stopping surfaces and an outer convex cambered surface connected between the two water stopping surfaces respectively are arranged on the outer side of the adjusting part, and when the two outer convex cambered surfaces abut against the hole wall of the mounting hole, the two water stopping surfaces are opposite to the positions of the liquid passing channels penetrating through the mounting hole respectively, so that the liquid passing channels are closed. When the rotation regulating part makes the evagination cambered surface in the regulating part stagger with the pore wall of mounting hole, two stagnant water faces just also stagger with the position that leads to the liquid way and run through the mounting hole, lead to the liquid way just like this and just opened, the medium flow that leads to the liquid way simultaneously can change according to the turned angle of regulating part, thereby realize the independent control to the drain pipe flow that links to each other with leading to the liquid way, so assist the regulation with combining the regulating part again after the case is adjusted and just can realize the accurate regulation of two drain pipe flows simultaneously.

In foretell flow control valve, the mounting hole be the through-hole, the quantity of operating head is two, the regulating part links firmly between two operating heads, two operating heads are located the two port departments of mounting hole respectively.

Set up the mounting hole into the through-hole, the quantity of operating head sets up to two simultaneously, and the staff rotates the accurate regulation in order to realize two drain pipe flows through two operating head homoenergetic like this to the regulating part.

In the above flow regulating valve, the liquid inlet pipe and the two liquid outlet pipes are circumferentially distributed, the mounting hole is formed in the vertical direction, the upper end of the valve body is connected with the upper end cover, the lower end face of the upper end cover abuts against the face where the upper end opening of the mounting hole is located and shields part of the upper end opening of the mounting hole, the lower end of the valve body is connected with the lower end cover, and the upper end face of the lower end cover abuts against the face where the lower end opening of the mounting hole is located and shields part of the lower end opening of the mounting hole.

Generally speaking, the valve body upper end all can be connected with the upper end cover, the valve body lower extreme all can be connected with the lower extreme cover, the mounting hole is the through-hole and sets up along vertical direction in this flow control valve simultaneously, consequently directly utilize the lower terminal surface of upper end cover to support and lean on the face at mounting hole last port place and shelter from some mounting hole last ports, the up end of lower end cover supports and leans on the face at mounting hole lower port place and shelter from some mounting hole lower ports, the up end that utilizes the lower terminal surface of upper end cover and lower extreme cover just can be spacing the regulating part axial in the mounting hole, thereby ensure that the regulating part can rotate smoothly and come to carry out the accurate regulation simultaneously to the play liquid flow of two drain pipes.

In the flow regulating valve, the end faces of the two operating heads are provided with a straight-line-shaped groove and/or a cross-shaped groove, and the side part of the upper end cover abutting against one of the operating heads and the side part of the lower end cover abutting against the other operating head are provided with arc-shaped notches.

The end surfaces of the two operating heads are respectively provided with a straight-line-shaped groove or a cross-shaped groove, so that a user can directly utilize a straight-line screw or a cross-shaped screw to rotate the adjusting piece to realize the accurate adjustment of the liquid outlet flow. No matter be a style of calligraphy groove or cross type groove, because the regulating part utilizes upper end cover and lower extreme cover to carry out axial spacing, consequently need all be equipped with curved notch at the upper end cover lateral part that leans on with one of them operating head counterbalance and the lower end cover lateral part that leans on with another operating head counterbalance, utilize curved notch to carry out the space to stepping down to a style of calligraphy screw or cross screw, guarantee that the staff has sufficient operating space.

In the above flow rate regulating valve, as another technical scheme, one end of the mounting hole is closed, the bottom wall of the mounting hole is provided with a positioning hole, the regulating part is provided with a positioning head, and the positioning head is inserted into the positioning hole.

One end of the mounting hole is sealed, so that the bottom wall of the mounting hole is provided with the positioning hole, the adjusting part is provided with the positioning head, and the positioning head is inserted into the positioning hole to support the rotation of the adjusting part, so that the adjusting part can smoothly rotate to adjust the liquid outlet flow of the liquid outlet pipe.

In foretell flow control valve, feed liquor pipe and two play liquid pipes distribute along circumference, the mounting hole sets up for vertical direction slope, the valve body lateral part at mounting hole place is equipped with connecting portion, threaded connection has a spacing screw on the connecting portion, the head of spacing screw supports and leans on the partial terminal surface of operating head, and is equipped with the boss on the terminal surface of operating head, is equipped with the straight flute of style of calligraphy on the boss.

The mounting hole is obliquely arranged relative to the vertical direction, so that the side part of the valve body where the mounting hole is located is provided with the connecting part, the connecting part is in threaded connection with the limiting screw, and the head of the limiting screw abuts against the end face of the partial supporting head to axially limit the adjusting piece in the mounting hole.

In foretell flow control valve, as another kind of technical scheme, the valve body on be equipped with the mounting hole, lead to the liquid way lateral and pass the mounting hole, the regulating part is cylindricly, the regulating part wears to establish in the mounting hole and regulating part and mounting hole axial spacing, the regulating part lateral part that is located the mounting hole and leads to liquid way coincidence department runs through and is provided with the water hole, the terminal surface of regulating part is equipped with straight type groove or cross type groove.

The regulating part is cylindricly, and the regulating part lateral part that is located mounting hole and leads to liquid and says coincidence department runs through to be provided with the water hole, so when rotating the regulating part and making the position that crosses the water hole and lead to liquid and say and run through the mounting hole staggers, leads to the liquid and says that in fact to be cut off. When the adjusting part is rotated to make the position of crossing the water hole and leading to the liquid way through the mounting hole just right to the time, it is the biggest to lead to the liquid way and is opened and the flow that the medium passes through the liquid way this moment, just reduce the flow that the medium passes through the liquid way when the adjusting part is rotated to make the position part that crosses the water hole and lead to the liquid way through the mounting hole just right to the time, thereby make the staff can just control the flow accuracy of this drain pipe through the adjusting part under the circumstances that does not relate to the case pivoted, the play liquid flow of two drain pipes accurate regulation simultaneously has been realized from this.

Compared with the prior art, this flow control valve is through setting up the liquid channel that leads to that is independent of the water cavity for the staff can carry out the accurate regulation back to the play liquid flow of a drain pipe through the case, utilize the regulating part to open the liquid channel and come the medium from the feed liquor pipe directly to introduce in another drain pipe with increase play liquid flow, the change of regulating part turned angle is controlled the medium through leading to the liquid channel in the reunion and is realized the accurate regulation of this drain pipe play liquid flow, thereby reach the mesh of carrying out the accurate regulation simultaneously to the play liquid flow of two drain pipes.

Drawings

FIG. 1 is a schematic view of a flow control valve according to an embodiment.

FIG. 2 is a schematic view of another angle of the flow control valve in the first embodiment.

FIG. 3 is a longitudinal sectional view of the flow control valve at the fluid passage in the first embodiment.

FIG. 4 is a transverse sectional view of the flow control valve at the fluid passage in the first embodiment.

FIG. 5 is a schematic view of an adjusting member according to one embodiment.

FIG. 6 is a schematic view of a flow rate adjusting valve in the second embodiment.

FIG. 7 is a schematic view of another angle of the flow rate adjusting valve in the second embodiment.

Fig. 8 is a schematic view of the flow rate adjustment valve of the second embodiment without the adjustment member.

FIG. 9 is a schematic view of an adjusting member according to the second embodiment.

In the figure, 1, a valve body; 1a, a liquid inlet pipe; 1b, a liquid outlet pipe; 1c, a body; 1c1, a water passing cavity; 1d, a liquid passing part; 1d1, liquid passage; 1e, an installation part; 1e1, mounting hole; 1e2, locating holes; 1f, a connecting part; 2. a valve core; 3. an adjustment member; 3a, an operating head; 3a1, a straight-line groove; 3a2, annular groove; 3a3, boss; 3b, an adjusting part; 3b1, water stop surface; 3b2, convex cambered surface; 3b3, positioning head; 4. an upper end cover; 5. a lower end cover; 6. a recess; 7. a limiting screw; 8. and (5) sealing rings.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

Example one

As shown in fig. 1, fig. 2 and fig. 4, a flow control valve, including valve body 1, valve body 1 includes body 1c that is the tube-shape and all links firmly a feed liquor pipe 1a and two drain pipes 1b in the body 1c outside, feed liquor pipe 1a all distributes along body 1 c's circumference with two drain pipes 1b, water passing cavity 1c1 has in body 1c, and feed liquor pipe 1a and two drain pipes 1b all are linked together with water passing cavity 1c1, be equipped with in the water passing cavity 1c1 and can control feed liquor pipe 1a and two spool 2 that communicate or cut off between the drain pipe 1b, the play liquid flow that can distribute and adjust two drain pipes 1b through the rotation of spool 2.

As shown in fig. 1, 2, 3, and 4, the valve body 1 has a liquid passing portion 1d between the liquid inlet pipe 1a and one of the liquid outlet pipes 1b, a liquid passing passage 1d1 is provided in the liquid passing portion 1d to communicate the liquid inlet pipe 1a with the liquid outlet pipe 1b, and the liquid passing passage 1d1 is provided independently of the water passing chamber 1c 1. Be equipped with the regulating part 3 that can rotate in the logical liquid way 1d1, can open and close logical liquid way 1d1 when regulating part 3 rotates and adjust the medium flow through logical liquid way 1d1 when logical liquid way 1d1 opens.

As shown in fig. 1, 2, 3, 4 and 5, the valve body 1 has a mounting portion 1e, the mounting portion 1e is fixedly connected to the outer side of the body 1c, the mounting portion 1e is partially overlapped with the connecting portion 1f, the mounting portion 1e is provided with a mounting hole 1e1, the liquid passage 1d1 laterally penetrates through the mounting hole 1e1, the adjusting member 3 is arranged in the mounting hole 1e1, and the adjusting member 3 is axially limited with the mounting hole 1e 1. The adjusting part 3 comprises an operating head 3a and an adjusting part 3b fixedly connected with the operating head 3a, the operating head 3a is located in a port of the mounting hole 1e1, an annular groove 3a2 is formed in the outer side of the operating head 3a, a sealing ring 8 is arranged in the annular groove 3a2, the outer side wall of the sealing ring 8 abuts against the inner wall of the port of the mounting hole 1e1 to form sealing, and the adjusting part 3b is located at the coincidence position of the mounting hole 1e1 and the liquid passage 1d 1. The adjusting part 3b is of a square plate-shaped structure, two parallel water stop surfaces 3b1 and convex cambered surfaces 3b2 respectively connected between the two water stop surfaces 3b1 are arranged on the outer side of the adjusting part 3b, the area of each water stop surface 3b1 is larger than the sectional area of the liquid passage 1d1, the two convex cambered surfaces 3b2 are abutted against the hole wall of the mounting hole 1e1, and the two convex cambered surfaces 3b2 are flush with part of the outer side wall of the operating head 3 a.

As shown in fig. 1, 2 and 3, the mounting hole 1e1 is a through hole and is arranged along the vertical direction, the number of the operating heads 3a is two, the adjusting portion 3b is fixedly connected between the two operating heads 3a, and the two operating heads 3a are respectively located at two ports of the mounting hole 1e 1. The upper end and the lower end of the body 1c are both open, the upper end of the body 1c is connected with the upper end cover 4, the lower end of the body 1c is connected with the lower end cover 5, the lower end face of the upper end cover 4 abuts against the face where the upper port of the mounting hole 1e1 is located, namely the upper end face of the mounting portion 1e, meanwhile, the lower end face of the upper end cover 4 shields the upper port of a part of the mounting hole 1e1, the upper end face of the lower end cover 5 abuts against the face where the lower port of the mounting hole 1e1 is located, namely the lower end face of the mounting portion 1e, and meanwhile, the upper end face of the lower end cover 5 shields the lower port. The end surfaces of the two operating heads 3a are respectively provided with a straight-line-shaped groove 3a1, and the side part of the upper end cover 4 abutting against one operating head 3a and the side part of the lower end cover 5 abutting against the other operating head 3a are respectively provided with an arc-shaped notch 6. Of course, in addition to the straight-shaped groove 3a1, a cross-shaped groove may be formed on the end surfaces of both operating heads 3 a. Two operating heads 3a are located the both ends mouth department of mounting hole 1e1 respectively, and the staff no matter is from upside or downside can all rotate regulating part 3 like this, all is equipped with a style of calligraphy groove 3a1 or cross type groove on the terminal surface of two operating heads 3a simultaneously for the staff only utilizes a style of calligraphy screwdriver or cross screwdriver alright rotate regulating part 3, has improved the convenience of regulation well.

When the medium distribution valve is used, a medium is supplied by the liquid inlet pipe 1a, and is distributed and outwards distributed by the two liquid outlet pipes 1b, and meanwhile, a worker can distribute the medium flowing into the water passing cavity 1c1 by rotating the valve core 2 so that the two liquid outlet pipes 1b outwards supply corresponding medium flow. When the flow is regulated, a worker can firstly utilize the valve core 2 to regulate the liquid outlet flow of the liquid outlet pipe 1b which is not connected with the liquid passage 1d1 to reach a required value, and after the liquid outlet flow of the liquid outlet pipe 1b is regulated, the valve core 2 is loosened and the valve core 2 is kept still.

If the other liquid outlet pipe 1b, namely the liquid outlet pipe 1b connected with the liquid passage 1d1, has a smaller liquid outlet flow after being adjusted by the valve core 2, at this time, a worker can rotate the adjusting piece 3 to open the liquid passage 1d1, and since the liquid passage 1d1 is independent of the water passage 1c1, a medium in the water inlet pipe directly flows into the liquid outlet pipe 1b through the liquid passage 1d1, so that the liquid outlet flow of the liquid outlet pipe 1b is increased. Meanwhile, because the adjusting part 3b is arranged on the adjusting part 3, and the adjusting part 3b is of a plate-shaped structure, when the rotating angles of the adjusting part 3 are different, the opening degree of the liquid passage 1d1 is different, namely, the medium flow flowing out from the liquid passage 1d1, so that the staff can control the medium flow directly flowing into the liquid outlet pipe 1b from the liquid inlet pipe 1a only by controlling the rotating angle of the adjusting part 3, and the accurate adjustment of the liquid outlet flow of the liquid outlet pipe 1b is realized. That is to say, with the help of the use of adjusting part 3 on the case 2 cooperation for this staff can carry out the accurate regulation simultaneously to the play liquid flow of two drain pipes 1b of this flow control valve.

In addition, when the valve core 2 is rotated to make the liquid outlet pipe 1b connected with the liquid passage 1d1 in a closed state, no medium flows through the pipe connected with the liquid outlet pipe 1b, and at this time, the staff can rotate the adjusting piece 3 to make the liquid passage 1d1 slightly open to ensure that the medium always flows in the pipe connected with the liquid outlet pipe 1b, so that the function of stabilizing the pipe can be achieved.

Example two

The structure and principle of this embodiment are basically the same as those of the first embodiment, except that: as shown in fig. 6, 7, 8 and 9, in the present embodiment, the upper end of the main body 1c is open, the upper end of the main body 1c is connected to the upper end cap 4, one end of the mounting hole 1e1 is closed, the bottom wall of the mounting hole 1e1 is provided with a positioning hole 1e2, the adjusting portion 3b is provided with a positioning head 3b3, and the positioning head 3b3 is inserted into the positioning hole 1e 2. The mounting hole 1e1 is arranged obliquely relative to the vertical direction, the side part of the mounting part 1e is provided with a connecting part 1f, the connecting part 1f is connected with a limiting screw 7 in a threaded manner, and the head part of the limiting screw 7 abuts against part of the end surface of the operating head 3 a. The end face of the operating head 3a is provided with a boss 3a3, and the boss 3a3 is provided with a straight groove.

EXAMPLE III

The structure and principle of this embodiment are basically the same as those of the first embodiment, except that: in this embodiment, the valve body 1 is provided with a mounting hole 1e1, the liquid passage 1d1 laterally penetrates through the mounting hole 1e1, the adjusting piece 3 is cylindrical, the adjusting piece 3 is arranged in the mounting hole 1e1 in a penetrating manner, the adjusting piece 3 and the mounting hole 1e1 are axially limited, a water through hole is arranged at the side part of the adjusting piece 3, which is located at the overlapping position of the mounting hole 1e1 and the liquid passage 1d1, in a penetrating manner, and the end face of the adjusting piece 3 is provided with a straight-shaped groove 3a1 or a cross-shaped groove.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. The utility model provides a flow control valve, includes valve body (1) that has a feed liquor pipe (1a) and two drain pipes (1b), is equipped with in valve body (1) and crosses water cavity (1c1) and feed liquor pipe (1a) and two drain pipes (1b) and all be linked together with crossing water cavity (1c1), is equipped with case (2) in crossing water cavity (1c1), its characterized in that, feed liquor pipe (1a) and one of them drain pipe (1b) between be equipped with through liquid way (1d1) independent of passing water cavity (1c1), be equipped with in through liquid way (1d1) and can rotate regulating part (3), can adjust the medium flow through liquid way (1d1) when regulating part (3) rotate.

2. The flow control valve according to claim 1, characterized in that the valve body (1) is provided with a mounting hole (1e1), the liquid passage (1d1) laterally passes through the mounting hole (1e1), the adjusting member (3) is located in the mounting hole (1e1) and axially limits the adjusting member (3) and the mounting hole (1e1), the adjusting member (3) comprises an operating head (3a) and an adjusting portion (3b) fixedly connected with the operating head (3a), the operating head (3a) is located at the port of the mounting hole (1e1) and forms a seal, and the adjusting portion (3b) is located at the position where the mounting hole (1e1) and the liquid passage (1d1) coincide.

3. The flow control valve according to claim 2, characterized in that the adjusting part (3b) is a square plate-shaped structure, the outer side of the adjusting part (3b) is provided with two parallel water stop surfaces (3b1) and two convex cambered surfaces (3b2) respectively connected between the two water stop surfaces (3b1), the area of the water stop surfaces (3b1) is larger than the sectional area of the liquid through channel (1d1), and the two convex cambered surfaces (3b2) are abutted against the wall of the mounting hole (1e 1).

4. A flow-regulating valve according to claim 2 or 3, characterised in that the mounting hole (1e1) is a through hole, the number of the operating heads (3a) is two, the regulating part (3b) is fixedly connected between the two operating heads (3a), and the two operating heads (3a) are respectively positioned at two ports of the mounting hole (1e 1).

5. The flow control valve according to claim 4, characterized in that the liquid inlet pipe (1a) and the two liquid outlet pipes (1b) are circumferentially distributed, the mounting hole (1e1) is formed in the vertical direction, the upper end of the valve body (1) is connected with the upper end cover (4), the lower end surface of the upper end cover (4) abuts against the surface of the upper end opening of the mounting hole (1e1) and shields part of the upper end opening of the mounting hole (1e1), the lower end of the valve body (1) is connected with the lower end cover (5), and the upper end surface of the lower end cover (5) abuts against the surface of the lower end opening of the mounting hole (1e1) and shields part of the lower end opening of the mounting hole (1e 1).

6. A flow control valve according to claim 5, characterized in that the end faces of the two operating heads (3a) are provided with a straight groove (3a1) and/or a cross-shaped groove, and the side of the upper end cover (4) abutting against one of the operating heads (3a) and the side of the lower end cover (5) abutting against the other operating head (3a) are provided with arc-shaped notches (6).

7. A flow rate adjusting valve according to claim 2 or 3, wherein one end of the mounting hole (1e1) is closed, the bottom wall of the mounting hole (1e1) is provided with a positioning hole (1e2), the adjusting part (3b) is provided with a positioning head (3b3), and the positioning head (3b3) is inserted into the positioning hole (1e 2).

8. The flow regulating valve according to claim 7, characterized in that the liquid inlet pipe (1a) and the two liquid outlet pipes (1b) are distributed along the circumferential direction, the mounting hole (1e1) is arranged obliquely relative to the vertical direction, the side part of the valve body (1) where the mounting hole (1e1) is located is provided with a connecting part (1f), the connecting part (1f) is in threaded connection with a limit screw (7), the head of the limit screw (7) abuts against part of the end face of the operating head (3a), the end face of the operating head (3a) is provided with a boss (3a3), and the boss (3a3) is provided with a straight groove in a straight line shape.

9. The flow regulating valve according to claim 1, wherein the valve body (1) is provided with a mounting hole (1e1), the liquid passage (1d1) laterally penetrates through the mounting hole (1e1), the regulating member (3) is cylindrical, the regulating member (3) is arranged in the mounting hole (1e1) in a penetrating manner, the regulating member (3) is axially limited with the mounting hole (1e1), a water through hole is arranged at the side part of the regulating member (3) at the position where the mounting hole (1e1) and the liquid passage (1d1) are overlapped in a penetrating manner, and the end face of the regulating member (3) is provided with a straight-line-shaped groove (3a1) or a cross-shaped groove.