CN110671519B - Tubular flow control valve - Google Patents
Tubular flow control valve Download PDFInfo
- Publication number
- CN110671519B CN110671519B CN201910965926.7A CN201910965926A CN110671519B CN 110671519 B CN110671519 B CN 110671519B CN 201910965926 A CN201910965926 A CN 201910965926A CN 110671519 B CN110671519 B CN 110671519B
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- Prior art keywords
- valve
- flow
- valve sleeve
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K15/00—Check valves
- F16K15/02—Check valves with guided rigid valve members
- F16K15/06—Check valves with guided rigid valve members with guided stems
- F16K15/063—Check valves with guided rigid valve members with guided stems the valve being loaded by a spring
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/52—Means for additional adjustment of the rate of flow
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K15/00—Check valves
- F16K15/18—Check valves with actuating mechanism; Combined check valves and actuated valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/20—Excess-flow valves
- F16K17/22—Excess-flow valves actuated by the difference of pressure between two places in the flow line
- F16K17/24—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member
- F16K17/28—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member operating in one direction only
- F16K17/30—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member operating in one direction only spring-loaded
Abstract
The invention relates to a tubular flow regulating valve, which comprises a valve body; the valve sleeve is in threaded connection with the valve body and can be adjusted up and down, and a first interface and a second interface are arranged on the valve sleeve; the plug is fixedly connected in the valve sleeve; the differential pressure compensation valve core is arranged in the valve sleeve in a sliding manner; the one-way spring is arranged in the valve sleeve and is positioned at the upper end of the compensating valve core; and the compensating spring is propped against the differential pressure compensating valve core. The tubular flow structure is simple and compact in size, can realize a one-way function and a flow regulation function, is convenient to regulate and connect, has high regulation precision, and the output flow of the first interface is not influenced by pressure change.
Description
Technical Field
The invention belongs to the technical field of valves, and particularly relates to a tubular flow regulating valve.
Background
The common one-way valve is used for enabling a fluid medium to flow only along one direction and not allowing the fluid medium to flow backwards in the opposite direction, the common flow regulating valve is used for controlling the flow of the fluid through changing the flow area, the flow regulating valve and the one-way valve are connected in parallel to form the one-way flow regulating valve, namely, the one-way valve can be opened in a specific direction, the flow regulating valve has no flow control function, the one-way valve cannot be opened in the direction opposite to the specific direction and only can flow out of the flow regulating valve, and the flow regulating valve has a flow regulating function. The existing universal one-way flow regulating valve is basically composed of two elements, one valve sleeve with the function of a one-way valve and one valve core with a throttling hole are combined, the one-way flow regulating valve is large in external dimension and difficult to install on occasions requiring compact structure, a pressure compensation function is not provided during throttling, flow is unstable when outlet pressure changes, flow is reduced when outlet pressure is increased, and flow is increased when outlet pressure is reduced.
The invention with the name of 201410520938.6 as the one-way throttle valve discloses the one-way throttle valve, which comprises a one-way channel and a throttle channel, wherein the one-way channel flows from a valve port A to a valve port B, and passes through a throttle groove I, a radial hole and an axial hole; the throttling channel flows from the valve port B to the valve port A, and passes through the axial hole, the radial hole, the throttling groove I and the throttling groove II; the throttling groove I, the throttling groove II, the radial hole and the axial hole are all arranged on the valve body, the valve port A and the valve port B are both arranged on the valve seat, a cavity I is arranged in the valve seat, and the valve body is arranged in the cavity I and can slide between the valve port A and the valve port B. Although the patent can realize the one-way throttling function, the size of the flow area is only changed during throttling, the pressure compensation function is not realized, and the output flow changes greatly when the outlet pressure changes; and when the one-way function is realized, fluid also needs to flow through the throttling groove, the flow resistance is large, and the energy consumption loss is large.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a tubular flow regulating valve with simple structure, compact volume, high flow regulating precision and one-way function aiming at the current state of the prior art.
The technical scheme adopted by the invention for solving the technical problems is as follows: a tubular flow control valve which is characterized in that: the valve body through hole comprises a first valve body through hole section, a second valve body through hole section and a third valve body through hole section, wherein the diameters of the first valve body through hole section, the second valve body through hole section and the third valve body through hole section are sequentially increased from top to bottom;
the valve sleeve is connected in the valve body in a threaded manner and can be adjusted up and down and extends to the upper end of the valve body, the valve sleeve comprises an upper valve sleeve section, a connecting section, a middle valve sleeve section and a lower valve sleeve section from top to bottom, an annular first flow passing groove is formed in the middle of the upper valve sleeve section, an annular second flow passing groove is formed between the connecting section and the first valve body through hole section, a conical surface which is matched with the lower opening of the first valve body through hole section to control the size of the communication area of the second flow passing groove and the flow passing groove is arranged on the connecting section, a valve sleeve through hole which penetrates along the axial direction is arranged in the valve sleeve, the valve sleeve through hole comprises a first valve sleeve through hole section, a second valve sleeve through hole section and a third valve sleeve through hole section from top to bottom, the upper opening of the first valve sleeve through hole section forms a second interface, the lower opening of the third valve sleeve through hole section forms a first interface, and an annular third flow passing groove and a fourth flow passing, a first through-flow hole for communicating the first through-flow groove with the first valve sleeve through-hole section, a second through-flow hole for communicating the first through-flow groove with the third through-flow groove, a third through-flow hole for communicating the second through-flow groove with the third valve sleeve through-hole section and a fourth through-flow hole for communicating the fourth through-flow groove with the second through-flow groove are formed in the side wall of the valve sleeve;
blocking, wherein the blocking thread is connected to the bottom of the through hole section of the first valve sleeve;
the differential pressure compensation valve core is arranged in the through hole section of the second valve sleeve in a vertically sliding manner and comprises an upper shoulder section, a reducing section and a lower shoulder section from top to bottom, a control cavity is formed between the upper shoulder section and the plug, a damping hole for communicating the fourth overflow groove with the control cavity is formed in the reducing section, and the communication area of the third overflow groove and the fourth overflow groove can be changed by the vertical movement of the differential pressure compensation valve core;
the check spring is arranged in the control cavity, one end of the check spring is abutted against the plug, the other end of the check spring is abutted against the differential pressure compensation valve core, so that the differential pressure compensation valve core keeps the trend of moving downwards, when a medium flows in from the first interface, the pressure of the first interface acts on the differential pressure compensation valve core, the differential pressure compensation valve core is pushed to move upwards to overcome the acting force of the check spring so that the lower convex shoulder section enters the fourth flow through groove to open the lower opening of the first valve sleeve through hole section, and the third valve sleeve through hole section is communicated with the fourth flow through groove through the lower opening of the first valve sleeve through hole section;
and the upper end of the compensating spring is propped against the lower end surface of the differential pressure compensating valve core, so that the differential pressure compensating valve core keeps the trend of moving upwards.
Preferably, the differential pressure compensator further comprises a first spring seat and a second spring seat, the first spring seat and the second spring seat are located in the third valve sleeve through hole section, the compensating spring is located between the first spring seat and the second spring seat, the upper end of the compensating spring abuts against the first spring seat, the lower end of the compensating spring abuts against the second spring seat, the upper end of the first spring seat abuts against the lower end of the differential pressure compensating valve core, a fifth through hole penetrating along the axial direction is formed in the first spring seat, and a sixth through hole penetrating along the axial direction is formed in the second spring seat.
Preferably, a blocking piece used for limiting the lower position of the second spring seat is arranged in the third valve sleeve through hole section.
Preferably, the first through-flow holes are provided in plurality and are evenly distributed along the circumferential direction of the valve sleeve.
Preferably, the second through-flow holes are provided in plurality and are evenly distributed along the circumferential direction of the valve sleeve.
Preferably, the third through-flow holes are provided in plurality and are uniformly distributed along the circumferential direction of the valve sleeve.
Preferably, a check ring for limiting the valve sleeve downwards is arranged in the through hole section of the third valve body so as to prevent the valve body and the valve sleeve from being separated from threaded connection.
Preferably, the lower end of the valve body is provided with a locking screw for locking the adjustment position of the valve sleeve.
Preferably, the outer end of the valve body is in a regular hexagon shape, and the outer end of the lower valve sleeve section is in a regular hexagon shape.
Preferably, the diameter of the third sleeve through hole section is larger than that of the second sleeve through hole section.
Compared with the prior art, the invention has the advantages that:
1. the unidirectional function and the flow regulation function are integrated into a whole through structural design, the structure is simple, and the volume is compact;
2. the invention is designed for tubular connection, and the first interface and the second interface can be directly connected on a pipeline for use, so that the connection is convenient;
3. when the flow is regulated, the flow can be regulated only by fixing the valve sleeve by using an external hexagonal wrench and then rotating the valve body by using the external hexagonal wrench to change the size of the lower opening of the through hole section of the first valve body without arranging a special flow regulating structure like the prior art;
4. through the built-in differential pressure compensation valve core, when fluid flows into the first interface from the second interface, the flow output stability of the first interface can be guaranteed no matter how the pressure of the first interface changes.
Drawings
FIG. 1 is a cross-sectional view of an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a valve body according to an embodiment of the present invention;
fig. 3 is a schematic view of the structure of a valve sleeve in an embodiment of the invention;
fig. 4 is a schematic structural diagram of a differential pressure compensating valve core in an embodiment of the invention.
Detailed Description
The invention is described in further detail below with reference to the accompanying examples.
As shown in fig. 1-4, is a preferred embodiment of the present invention.
A tubular flow control valve comprises
The valve body 1 is equipped with in the valve body 1 along the valve body through-hole that the axial runs through, the valve body through-hole includes from last first valve body through-hole section 101, second valve body through-hole section 103 and the third valve body through-hole section 104 that increases in proper order down the diameter, and the junction of first valve body through-hole section 101 and second valve body through-hole section 103 is equipped with annular through-flow groove 102, and the outer end of valve body 1 is regular hexagon shape.
The valve sleeve 2 is connected in the valve body 1 by a thread which can be adjusted up and down and extends to the upper end of the valve body 1, the valve sleeve 2 comprises an upper valve sleeve section 2a, a connecting section 2B, a middle valve sleeve section 2c and a lower valve sleeve section 2d from top to bottom, the middle part of the upper valve sleeve section 2a is provided with an annular first through-flow groove 25, an annular second through-flow groove 105 is formed between the connecting section 2B and the first valve body through-hole section 101, the connecting section 2B is provided with a conical surface 2B1 which is matched with the lower opening of the first valve body through-hole section 101 to control the communication area of the second through-flow groove 105 and the through-flow groove 102, a valve sleeve through-hole which penetrates along the axial direction is arranged in the valve sleeve 2, the valve sleeve through-hole comprises a first valve sleeve through-hole section 21, a second valve sleeve through-hole section 22 and a third valve sleeve through-hole section 23 from top to bottom, the diameter of the third sleeve through-hole section 23 is larger than that of the second valve sleeve through, the lower opening of the third valve sleeve through hole section 23 forms a first interface a, the side wall of the first valve sleeve through hole section 21 is provided with a third annular flow passing hole 26 and a fourth annular flow passing hole 28 from top to bottom, the side wall of the valve sleeve 2 is provided with a first flow passing hole 24 for communicating the first flow passing hole 25 with the first valve sleeve through hole section 21, a second flow passing hole 27 for communicating the first flow passing hole 25 with the third flow passing hole 26, a third flow passing hole 20 for communicating the second flow passing hole 105 with the third valve sleeve through hole section 23, and a fourth flow passing hole 29 for communicating the fourth flow passing hole 28 with the second flow passing hole 105, and the first flow passing hole 24, the second flow passing hole 27 and the third flow passing hole 20 are all provided in plurality and are uniformly distributed along the circumferential direction of the valve sleeve 2. A check ring 9 for limiting the valve sleeve 2 downwards to prevent the valve body 1 and the valve sleeve 2 from being separated from threaded connection is arranged in the third valve body through hole section 104, and a locking screw 11 for locking the adjusting position of the valve sleeve 2 is arranged at the lower end of the valve body 1.
A plug 6, the plug 6 being threaded into the bottom of the first valve housing through bore section 21.
The differential pressure compensation valve core 4 is arranged in the second valve sleeve through hole section 22 in a vertically sliding mode, the differential pressure compensation valve core 4 comprises an upper shoulder section 4a, a reducing section 4b and a lower shoulder section 4c from top to bottom, a control cavity 42 is formed between the upper shoulder section 4a and the plug 6, a damping hole 41 used for communicating the fourth overflow groove 28 with the control cavity 42 is formed in the reducing section 4b, and the communicating area of the third overflow groove 26 and the fourth overflow groove 28 can be changed by the up-and-down movement of the differential pressure compensation valve core 4.
The check spring 5 is arranged in the control cavity 42, one end of the check spring 5 is abutted against the plug 6, the other end of the check spring 5 is abutted against the differential pressure compensation valve core 4, the differential pressure compensation valve core 4 keeps the trend of moving downwards, when a medium flows in from the first connector A, the pressure of the first connector A acts on the differential pressure compensation valve core 4 to push the differential pressure compensation valve core 4 to overcome the acting force of the check spring 5 to move upwards so that the lower shoulder section 4c enters the fourth through-flow groove 28 to open the lower opening of the second valve sleeve through-hole section 22, and the third valve sleeve through-hole section 23 is communicated with the fourth through-flow groove 28 through the lower opening of the first valve sleeve through-hole section 21.
Compensating spring 3, first spring holder 7 and second spring holder 8, compensating spring 3, first spring holder 7 and second spring holder 8 are located third valve cover through-hole section 23, compensating spring 3 is located between first spring holder 7 and the second spring holder 8, compensating spring 3's upper end supports on first spring holder 7, compensating spring 3's lower extreme supports on second spring holder 8, the upper end of first spring holder 7 supports the trend that makes pressure differential compensation case 4 keep the rebound with the lower extreme of pressure differential compensation case 4, be equipped with the fifth through-flow hole 71 that runs through along the axial in the first spring holder 7, be equipped with the sixth through-flow hole 81 that runs through along the axial in the second spring holder 8. A blocking piece 10 used for limiting the lower position of the second spring seat 8 is arranged in the third valve sleeve through hole section 23.
The working principle and the process of the invention are as follows:
unidirectional function: when fluid medium flows in from the first interface a, the pressure of the first interface a acts on the differential pressure compensation valve core 4, the differential pressure compensation valve core 4 is pushed to move upwards against the acting force of the one-way spring 5, so that the lower shoulder section 4c enters the fourth through-flow groove 28 to open the lower opening of the second valve sleeve through-hole section 22, the third valve sleeve through-hole section 23 is communicated with the fourth through-flow groove 28 through the lower opening of the first valve sleeve through-hole section 21, the fluid medium of the first interface a sequentially passes through the third valve sleeve through-hole section 23, the sixth through-flow hole 81, the fifth through-flow hole 71, the fourth through-flow groove 28, the third through-flow groove 26, the second through-flow hole 27, the first through-flow groove 25, the first through-flow hole 24 and the first valve sleeve through-hole section 21 and then enters the second interface B, and the one-way function from the first interface a to the second interface B.
The flow regulation function: when the flow rate is adjusted, the flow rate can be adjusted only by fixing the valve sleeve 2 with an external hexagonal wrench and then rotating the valve body 1 with the external hexagonal wrench to move the valve body 1 up and down relative to the valve sleeve 2 so as to change the size of the lower opening of the first valve body through hole section 21 through the conical surface 2b 1. When the fluid medium flows in from the second interface B, the fluid medium of the second interface B sequentially passes through the first valve sleeve through hole section 21, the first through flow hole 24, the first flow passing groove 25, the second through flow hole 27, the third flow passing groove 26, the fourth flow passing groove 28, the fourth flow passing hole 29, the second flow passing groove 105, the flow passing groove 102, the third through flow hole 20 and the sixth through flow hole 81 and then enters the first interface a; at this time, the pressure of the second port a enters the control chamber through the orifice 41, so that the lower shoulder section 4c of the differential pressure compensating valve core 4 extends into the lower opening of the second sleeve through hole section 22, and the communication between the third sleeve through hole section 23 and the fourth flow passing groove 28 is blocked. When the pressure of the first port a is reduced, the differential pressure between the first port a and the fourth overflow groove 28 is increased, the resultant force acting on the differential pressure compensation valve core 2 is increased, the differential pressure pushes the differential pressure compensation valve core 2 to move downwards, the compensation spring 3 is compressed, the communication area of the third overflow groove 26 and the fourth overflow groove 28 is reduced, the pressure of the fourth overflow groove 28 is reduced until an equilibrium state is reached, and the differential pressure between the fourth overflow groove 28 and the first port a is kept constant. If the pressure of the first connection port a is increased, the differential pressure between the first connection port a and the second connection port B is decreased, the resultant force acting on the differential pressure compensation valve core 2 is decreased, the differential pressure compensation valve core 2 moves upwards under the resultant force, the communication area of the third overflow groove 26 and the fourth overflow groove 28 is increased, the pressure of the fourth overflow groove 28 is increased until a balanced state is reached, and the differential pressure between the fourth overflow groove 28 and the first connection port a is kept constant. This ensures that, in the event of a change in the pressure at the first connection a, the pressure difference between the first connection a and the second connection B is constant, and the flow output by the second connection B remains constant.
Claims (10)
1. A tubular flow control valve which is characterized in that: comprises that
The valve body (1) is internally provided with a valve body through hole which penetrates along the axial direction, the valve body through hole comprises a first valve body through hole section (101), a second valve body through hole section (103) and a third valve body through hole section (104) which are sequentially increased in diameter from top to bottom, and an annular through flow groove (102) is arranged at the joint of the first valve body through hole section (101) and the second valve body through hole section (103);
the valve sleeve (2), the thread connection that the valve sleeve (2) can be adjusted from top to bottom is in the valve body (1) and extends out to the upper end of the valve body (1), the valve sleeve (2) comprises an upper valve sleeve section (2a), a connecting section (2b), a middle valve sleeve section (2c) and a lower valve sleeve section (2d) from top to bottom, the middle part of the upper valve sleeve section (2a) is provided with an annular first flow passing groove (25), an annular second flow passing groove (105) is formed between the connecting section (2b) and the first valve body through hole section (101), the connecting section (2b) is provided with a conical surface (2b1) which is matched with a lower opening of the first valve body through hole section (101) to control the size of the communication area of the second flow passing groove (105) and the flow passing groove (102), a valve sleeve through hole which penetrates along the axial direction is arranged in the valve sleeve (2), the valve sleeve through hole comprises a first valve sleeve through hole section (21), a second valve sleeve through hole section (22) and a first sleeve, the upper opening of the first valve sleeve through hole section (21) forms a second interface (B), the lower opening of the third valve sleeve through hole section (23) forms a first interface (A), the side wall of the first valve sleeve through hole section (21) is provided with a third annular through flow groove (26) and a fourth annular through flow groove (28) from top to bottom, the side wall of the valve sleeve (2) is provided with a first through flow groove (24) for communicating the first through flow groove (25) with the first valve sleeve through hole section (21), a second through flow hole (27) for communicating the first through flow groove (25) with the third through flow groove (26), a third through flow hole (20) for communicating the second through flow groove (105) with the third valve sleeve through hole section (23), and a fourth through flow hole (29) for communicating the fourth through flow groove (28) with the second through flow groove (105);
the plug (6), the plug (6) is connected to the bottom of the first valve sleeve through hole section (21) in a threaded mode;
the differential pressure compensation valve core (4) is arranged in the second valve sleeve through hole section (22) in a vertically sliding mode, the differential pressure compensation valve core (4) comprises an upper shoulder section (4a), a reducing section (4b) and a lower shoulder section (4c) from top to bottom, a control cavity (42) is formed between the upper shoulder section (4a) and the plug (6), a damping hole (41) used for communicating the fourth flow through groove (28) with the control cavity (42) is formed in the reducing section (4b), and the size of the communication area of the third flow through groove (26) and the fourth flow through groove (28) can be changed by the vertical movement of the differential pressure compensation valve core (4);
the check spring (5) is arranged in the control cavity (42), one end of the check spring (5) abuts against the plug (6), the other end of the check spring abuts against the differential pressure compensation valve core (4), the differential pressure compensation valve core (4) keeps the trend of moving downwards, when a medium flows in from the first connector (A), the pressure of the first connector (A) acts on the differential pressure compensation valve core (4), the differential pressure compensation valve core (4) is pushed to overcome the acting force of the check spring (5) to move upwards, so that the lower shoulder section (4c) enters the fourth through-flow groove (28) to open the lower opening of the second valve sleeve through-hole section (22), and the third valve sleeve through-hole section (23) is communicated with the fourth through-flow groove (28) through the lower opening of the first valve sleeve through-hole section (21);
the compensation spring (3) is arranged in the third valve sleeve through hole section (23), and the upper end of the compensation spring (3) abuts against the lower end face of the differential pressure compensation valve core (4) so that the differential pressure compensation valve core (4) keeps the trend of moving upwards.
2. The tubular flow control valve according to claim 1, characterized in that: still include first spring holder (7) and second spring holder (8), first spring holder (7) and second spring holder (8) are located third valve cover through-hole section (23), compensating spring (3) are located between first spring holder (7) and second spring holder (8), the upper end of compensating spring (3) supports on first spring holder (7), the lower extreme of compensating spring (3) supports on second spring holder (8), the upper end of first spring holder (7) supports with the lower extreme of pressure differential compensation case (4), be equipped with in first spring holder (7) along the fifth through-flow hole (71) that the axial runs through, be equipped with in second spring holder (8) along the sixth through-flow hole (81) that the axial runs through.
3. The tubular flow control valve according to claim 2, characterized in that: a blocking piece (10) used for limiting the lower part of the second spring seat (8) is arranged in the third valve sleeve through hole section (23).
4. The tubular flow control valve according to claim 1, characterized in that: the first through flow holes (24) are arranged in a plurality and are uniformly distributed along the circumferential direction of the valve sleeve (2).
5. The tubular flow control valve according to claim 1, characterized in that: the second through holes (27) are provided in plurality and are uniformly distributed along the circumferential direction of the valve sleeve (2).
6. The tubular flow control valve according to claim 1, characterized in that: the third through holes (20) are arranged in a plurality and are uniformly distributed along the circumferential direction of the valve sleeve (2).
7. The tubular flow control valve according to claim 1, characterized in that: a check ring (9) used for limiting the valve sleeve (2) downwards is arranged in the third valve body through hole section (104) to prevent the valve body (1) and the valve sleeve (2) from being separated from threaded connection.
8. The tubular flow control valve according to claim 1, characterized in that: the lower end of the valve body (1) is provided with a locking screw (11) used for locking the adjusting position of the valve sleeve (2).
9. The tubular flow control valve according to claim 1, characterized in that: the outer end of the valve body (1) is in a regular hexagon shape, and the outer end of the lower valve sleeve section (2d) is in a regular hexagon shape.
10. The tubular flow control valve according to claim 1, characterized in that: the diameter of the third valve sleeve through hole section (23) is larger than that of the second valve sleeve through hole section (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910965926.7A CN110671519B (en) | 2019-10-12 | 2019-10-12 | Tubular flow control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910965926.7A CN110671519B (en) | 2019-10-12 | 2019-10-12 | Tubular flow control valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110671519A CN110671519A (en) | 2020-01-10 |
| CN110671519B true CN110671519B (en) | 2021-04-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910965926.7A Active CN110671519B (en) | 2019-10-12 | 2019-10-12 | Tubular flow control valve |
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| CN (1) | CN110671519B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114076201B (en) * | 2020-08-21 | 2024-02-13 | 广东博智林机器人有限公司 | Hole grouting device and grouting equipment |
| CN112963590B (en) * | 2021-03-15 | 2022-11-15 | 中国长江电力股份有限公司 | Embedded rapid interception one-way valve sleeve and method |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB8920365D0 (en) * | 1989-09-08 | 1989-10-25 | Warren William E | Check valves |
| AT411923B (en) * | 2000-08-23 | 2004-07-26 | Weber Gisela | HYDRAULIC VALVE |
| CN101994726A (en) * | 2010-11-29 | 2011-03-30 | 广西玉柴重工有限公司 | One-way throttle valve |
| CN203614482U (en) * | 2013-10-14 | 2014-05-28 | 宁波明启液压机械有限公司 | Stacked bidirectional-unidirectional throttling valve |
| CN204403500U (en) * | 2014-12-31 | 2015-06-17 | 无锡纵阳气动制造有限公司 | The anti-skidding exhaust valve of a kind of railroad train with one-way valve |
| CN104912866B (en) * | 2015-06-29 | 2017-05-10 | 宁波精垦液压有限公司 | A compact type fully hydraulic walking pile-up valve |
| CN105397056A (en) * | 2015-12-15 | 2016-03-16 | 重庆纽思塔科技有限公司 | Nozzle |
| CN108131479B (en) * | 2017-12-21 | 2019-05-28 | 绍兴市雅克汽配有限公司 | A kind of one-way throttle valve |
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