CN113464714B - Pump export minimum flow valve - Google Patents

Pump export minimum flow valve Download PDF

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Publication number
CN113464714B
CN113464714B CN202110881750.4A CN202110881750A CN113464714B CN 113464714 B CN113464714 B CN 113464714B CN 202110881750 A CN202110881750 A CN 202110881750A CN 113464714 B CN113464714 B CN 113464714B
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China
Prior art keywords
plate
pipe
main flow
flow pipe
flow valve
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CN202110881750.4A
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Chinese (zh)
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CN113464714A (en
Inventor
郑德宠
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Jiutong Group Co ltd
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Jiutong Group Co ltd
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Publication of CN113464714A publication Critical patent/CN113464714A/en
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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
    • F16K47/00—Means in valves for absorbing fluid energy
    • F16K47/02—Means in valves for absorbing fluid energy for preventing water-hammer or noise
    • 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
    • F16K1/34—Cutting-off parts, e.g. valve members, seats
    • F16K1/36—Valve members
    • 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
    • F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
    • F16K11/10—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit
    • F16K11/14—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit operated by one actuating member, e.g. a handle
    • F16K11/16—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit operated by one actuating member, e.g. a handle which only slides, or only turns, or only swings in one plane
    • 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
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/02—Construction of housing; Use of materials therefor of lift valves
    • F16K27/0263—Construction of housing; Use of materials therefor of lift valves multiple way valves
    • 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
    • F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
    • F16K37/0075—For recording or indicating the functioning of a valve in combination with test equipment
    • F16K37/0091—For recording or indicating the functioning of a valve in combination with test equipment by measuring fluid parameters
    • 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
    • F16K47/00—Means in valves for absorbing fluid energy
    • F16K47/02—Means in valves for absorbing fluid energy for preventing water-hammer or noise
    • F16K47/023—Means in valves for absorbing fluid energy for preventing water-hammer or noise for preventing water-hammer, e.g. damping of the valve movement

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Lift Valve (AREA)

Abstract

The invention relates to a minimum flow valve, in particular to a pump outlet minimum flow valve. The utility model provides a pump export minimum flow valve, includes mainstream pipe and shunt tubes, links firmly the shunt tubes on the mainstream pipe, and the time flow pipe is closed when the mainstream pipe is opened completely, and the time flow pipe is opened when the mainstream pipe part is opened, and the mainstream is intraductal to be linked firmly the amortization structure. The utility model provides a pump export minimum flow valve still includes inner ring seat and flashboard, has linked firmly the inner ring seat in the mainstream pipe, and the flashboard links firmly at inner ring seat department, and the mainstream pipe is closed when the flashboard is pressed at inner ring seat department. The utility model provides a pump export minimum flow valve still includes round bar, portal and disk, and the upper portion of mainstream pipe has linked firmly the portal, and the upside of flashboard has linked firmly the round bar, and the vertical sliding connection of round bar has cup jointed compression spring I on the round bar on the portal, and compression spring I is located between portal and the flashboard, and the upper end of round bar has linked firmly the disk. The minimum flow valve at the outlet of the pump further comprises a circular ring and a stop head, and the center of the upper side of the flashboard is fixedly connected with the circular ring.

Description

Pump export minimum flow valve
Technical Field
The invention relates to a minimum flow valve, in particular to a pump outlet minimum flow valve.
Background
The minimum flow valve is generally installed in a branch pipe at the outlet of the water pump, and is closed when the water pump is in normal operation and the outer pipe supplies water. When the water pump is normally operated and water is not supplied to the outside, the pump is not stopped, the minimum flow valve is controlled to be opened and closed by one of three modes of temperature, pressure and linkage with the outlet valve, a part of high-temperature water with small flow is discharged, the cavitation of the water pump is prevented, and the normal and continuous operation of the water pump is ensured.
However, when water flows through the interior of the traditional minimum flow valve, the sound is loud, no buffer exists for the flow of the water, and the service life of the minimum flow valve cannot be prolonged.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides the minimum flow valve at the outlet of the pump, which has the beneficial effects that a silencing structure is fixedly connected, and the water flow noise is reduced.
The utility model provides a pump export minimum flow valve, includes mainstream pipe and shunt tubes, links firmly the shunt tubes on the mainstream pipe, and the time flow pipe is closed when the mainstream pipe is opened completely, and the time flow pipe is opened when the mainstream pipe part is opened, and the mainstream is intraductal to be linked firmly the amortization structure.
The minimum flow valve further comprises an inner ring seat and a flashboard, the main flow pipe is fixedly connected with the inner ring seat, the flashboard is fixedly connected to the inner ring seat, and the main flow pipe is closed when the flashboard is pressed to the inner ring seat.
The minimum flow valve further comprises a round rod, a portal frame and a wafer, the portal frame is fixedly connected to the upper portion of the main flow pipe, the round rod is fixedly connected to the upper side of the gate plate, the round rod is vertically connected to the portal frame in a sliding mode, a compression spring I is sleeved on the round rod and located between the portal frame and the gate plate, and the wafer is fixedly connected to the upper end of the round rod.
Minimum flow valve still includes ring and fender head, and the upside center of flashboard has linked firmly the ring, and the central point of annular seat puts the rotation connection on the ring, and the upside of ring has linked firmly the fender head.
The minimum flow valve also comprises a convex block and a storage tank, the lower side of the flashboard is fixedly connected with the convex block, and the front side of the convex block is fixedly connected with the storage tank.
The minimum flow valve also comprises a disassembly plate, and the storage groove on the lug is detachably connected with the disassembly plate through a screw.
Minimum flow valve still includes the butterfly groove, the stationary blade, L shape post, the fixed axle, the round hole board, the square column, spring catch and mounting plate, the butterfly groove has been linked firmly to the front side of lug, the left part of shunt tubes has linked firmly the fixed axle, the one end of L shape post is rotated and is connected on the fixed axle, the other end of L shape post is inserted on the butterfly groove, the right part of shunt tubes has linked firmly the round hole board, the round hole has been linked firmly on the round hole board, the stationary blade has been linked firmly at the middle part of shunt tubes, square column lateral sliding connects on the stationary blade, the right-hand member of square column has linked firmly the mounting plate, the mounting plate is located the left side of round hole on the round hole board, spring catch has been linked firmly on the square column, compression spring II has been cup jointed on the square column, compression spring II is located between stationary blade and the spring catch, the left end top of square column is on the right side of L shape post.
Minimum flow valve still includes chute and cylinder sprue, and the right side of mounting has linked firmly the cylinder sprue, and cylinder sprue sliding connection is the annular on the cylinder sprue and has linked firmly a plurality of chutes on the round hole board, and the wide left end of right-hand member in chute is narrow.
The sound attenuation structure includes annular seat, buffer seat and parallel groove, and the upside of flashboard has linked firmly annular seat, has linked firmly a plurality of buffer seats on the annular seat, has all linked firmly a plurality of parallel grooves from last to down on a plurality of buffer seats.
The amortization structure still includes perpendicular hole, has linked firmly the perpendicular hole of a plurality of vertical links firmly on the buffer seat, and perpendicular hole passes a plurality of parallel grooves.
Drawings
The invention is described in further detail below with reference to the accompanying drawings and specific embodiments.
FIG. 1 is a first structural diagram of a minimum flow valve at an outlet of a pump;
FIG. 2 is a schematic structural diagram II of a pump outlet minimum flow valve;
FIG. 3 is a first schematic structural view of the main flow pipe;
FIG. 4 is a second schematic structural view of the main flow pipe;
FIG. 5 is a schematic view of the structure of the gate plate and the round bar;
FIG. 6 is a schematic view of the shutter arrangement;
FIG. 7 is a schematic view of the annular seat;
FIG. 8 is a schematic view of the shunt tube and the square column;
fig. 9 is a schematic view of a shunt;
fig. 10 is a schematic structural view of a square column.
In the figure: a main flow pipe 101; an inner ring seat 102; a nose bar 103; a hand screw 104; a rubber sleeve 105; a square tube 106; a lever 107;
a shutter plate 201; a circular ring 202; a bump 203; disassembling the plate 204; a butterfly slot 205; a storage tank 206; a stopper 207;
a round bar 301; a gantry 302; a wafer 303; a rib 304;
an annular seat 401; a buffer base 402; parallel grooves 403; a vertical bore 404;
a shunt pipe 501; a fixing piece 502; an L-shaped post 503; a stationary shaft 504; a circular orifice plate 505;
a square column 601; a spring catch 602; a sealing sheet 603; a chute 604; a cylindrical block 605.
Detailed Description
Referring to fig. 1-2, an embodiment of the present invention is provided to reduce the noise of water flow in the minimum flow valve, and further,
because the minimum flow valve at the outlet of the pump comprises the main flow pipe 101 and the diversion pipe 501, the diversion pipe 501 is arranged on the main flow pipe 101, the main flow pipe 101 mainly feeds water in and out from the pump, the flow pipe 501 is closed when the main flow pipe 101 is completely opened, the water inlet is arranged below the main flow pipe 101, the flow pipe 501 is opened when the main flow pipe 101 is partially opened, and the flow pipe 501 is still opened when the main flow pipe 101 is completely closed, so that the pump does not stop working, and the normal and continuous operation of the pump is ensured; the silencing structure can be used for silencing water at the main flow pipe 101 at the minimum flow valve, so that the water flow noise in the minimum flow valve is reduced.
Referring to fig. 1-6, an embodiment of the present invention is provided, which solves the main technical problem of controlling the opening and closing of the main flow pipe 101 by adjusting the distance between the gate plate 201 and the inner ring seat 102, and further,
because pump outlet minimum flow valve still includes inner ring seat 102 and flashboard 201, inner ring seat 102 sets up in the inboard middle part of main flow pipe 101, and flashboard 201 sets up the upside at the inner ring seat, and then can control opening and closing of main flow pipe 101 through the interval of adjustment flashboard 201 and inner ring seat 102.
Referring to fig. 1-6, an embodiment of the present invention is provided to solve the main technical problem that when the water pressure reaches a certain level, a gap is generated between the inner ring seat 102 and the gate plate 201 to open the main flow pipe 101, and further,
the minimum flow valve further comprises a round rod 301, a door frame 302 and a wafer 303, the door frame 302 is arranged at the upper part of the main flow pipe 101, the round rod 301 is fixedly connected to the upper side of the gate plate 201, the round rod 301 is connected to the door frame 302 in a sliding mode, a compression spring I is sleeved on the round rod 301 and located between the door frame 302 and the gate plate 201, and the wafer 303 is fixedly connected to the upper end of the round rod 301; when water flows upwards from the lower part of the main flow pipe 101, when the water pressure reaches a certain degree, the gate plate 201 can be driven to move upwards by overcoming the elastic force of the compression spring I, at this time, the round rod 301 moves upwards on the door frame 302, and at this time, a gap is generated between the inner ring seat 102 and the gate plate 201 to open the main flow pipe 101.
Referring to fig. 7, an embodiment of the present invention is provided to solve the main technical problems of reducing the pressure of water, silencing the water flowing through the main flow pipe 101, and further,
since the silencing structure includes the annular seat 401, the buffer seat 402 and the parallel groove 403, the annular seat 401 is disposed on the upper side of the shutter plate 201, the plurality of buffer seats 402 are disposed on the annular seat 401, when water flows through a gap between the inner annular seat 102 and the shutter plate 201, the water flows into the parallel groove 403 on the plurality of buffer seats 402 on the annular seat 401, the pressure of the first pair of water is reduced, and the water flowing at the second pair of main flow pipe 101 is silenced.
Referring to fig. 7, an embodiment of the present invention is provided, which solves the main technical problems of further reducing the pressure of water and silencing the water flowing in the main flow pipe 101, and further,
because the silencing structure also comprises the vertical holes 404, a plurality of vertical holes 404 are arranged on the buffer seat 402, and a plurality of vertical holes 404 penetrate through the corresponding parallel grooves 403, the pressure of water is further reduced and the water flowing at the main flow pipe 101 is silenced through the staggered arrangement of the vertical holes 404 and the parallel grooves 403.
Referring to fig. 7, an embodiment of the present invention is provided to solve the main technical problem of energy dissipation and noise reduction for water flows at different positions, and further,
because pump export minimum flow valve still includes ring 202 and fender head 207, ring 202 sets up the upside central point at flashboard 201 and puts, annular seat 401 rotates to be connected on ring 202, fender head 207 sets up the upside at ring 202, annular seat 401 can use the axis of self to rotate on ring 202 as the axle, fender head 207 can prevent that annular seat 401 from breaking away from ring 202, and then make the position of buffer seat 402, parallel groove 403 and vertical hole 404 constantly change, all carry out energy dissipation and amortization to the rivers of different positions, and further promote the effect of energy dissipation and amortization through the rotation of buffer seat 402, parallel groove 403 and vertical hole 404.
Referring to fig. 5-6, an embodiment of the present invention is provided to solve the main technical problem of disposing a wireless microphone in the main flow pipe 101, and further,
because minimum flow valve still includes lug 203 and holding tank 206, lug 203 sets up the downside at flashboard 201, and holding tank 206 sets up the front side at lug 203, is used for setting up wireless microphone in the holding tank 206, and wireless microphone passes through the bluetooth sound transmission, effectively judges the rivers condition in the main flow pipe 101.
Referring to fig. 5-6, the present invention provides an embodiment that solves the main technical problem of conveniently closing the storing groove 206, and further,
because the minimum flow valve also comprises a disassembling plate 204, the disassembling plate 204 is detachably connected at the storage groove 206 through screws, so that the storage groove 206 is conveniently closed, the wireless microphone is prevented from sliding out of the storage groove 206, and the disassembling plate 204 is made of rubber materials, so that the storage groove 206 can be sealed.
Referring to fig. 1-10, an embodiment of the present invention is provided to solve the main technical problem of ensuring that when the water pressure of the main pipe 101 is insufficient, water always flows through the branch pipe 501, so as to ensure the normal and continuous operation of the water pump, and further,
the minimum flow valve at the outlet of the pump further comprises a butterfly-shaped groove 205, a fixing plate 502, an L-shaped column 503, a fixing shaft 504, a round hole plate 505, a square column 601, a spring retaining sheet 602 and a sealing sheet 603, wherein the butterfly-shaped groove 205 is arranged on the front side of the convex block 203, the fixing shaft 504 is fixedly connected to the left part of the flow dividing pipe 501, one end of the L-shaped column 503 is inserted into the butterfly-shaped groove 205, the other end of the L-shaped column 503 is rotatably connected to the fixing shaft 504, the round hole plate 505 is arranged at the right end of the flow dividing pipe 501, a round hole is arranged in the middle of the round hole plate 505, the fixing plate 502 is arranged in the middle of the flow dividing pipe 501, the square column 601 is slidably connected to the fixing plate 502, the sealing sheet 603 is fixedly connected to the right end of the square column 601, the sealing sheet 603 is located on the left side of the round hole in the round hole plate 505, the spring retaining sheet 602 is fixedly connected to the square column 601, a compression spring II is sleeved on the square column 601, the compression spring II is arranged between the fixing plate 502 and the spring retaining sheet 602, and the left part of the square column 601 is pressed on the right side of the L-shaped column 503; when water flows from the main flow pipe 101 from bottom to top, the larger the pressure of the water is, the larger the upward movement distance of the gate plate 201 is, at this time, the gate plate 201 drives the protrusion 203 to move upward, the protrusion 203 drives the left part of the L-shaped column 503 to lift upward through the butterfly groove 205, at this time, the L-shaped column 503 rotates counterclockwise by taking the axis of the fixed shaft 504 as the shaft, the pushing square column 601 moves rightward by overcoming the elastic force of the compression spring II, at this time, the sealing piece 603 moves toward the circular hole plate 505, when the gate plate 201 moves upward to the maximum, the sealing piece 603 presses on the circular hole plate 505 to seal the diversion pipe 501, and when the gate plate 201 is not opened to the maximum or even closed at the rest time, the sealing piece 603 does not press on the circular hole plate 505, and further, when the water pressure of the main flow pipe 101 is insufficient, the diversion pipe 501 always has water flow through, and the normal and continuous operation of the water pump is ensured.
Referring to fig. 8-10, an embodiment of the present invention is provided, which solves the main technical problem that the flow rate at the branch pipe 501 is adapted to decrease after the flow rate at the main flow pipe 101 increases, and further,
because the minimum flow valve still includes chute 604 and cylinder sprue 605, the right side of mounting plate 603 is provided with cylinder sprue 605, cylinder sprue 605 can slide left and right on the round hole board 505, the wide left end of right-hand member of chute 604 is narrow, it is provided with a plurality of chute 604 to be the annular on the cylinder sprue 605, the wide left end of right-hand member of chute 604 is narrow, and then make mounting plate 603 be close to more to round hole board 505, the chute 604 on the cylinder sprue 605 and the chute 604 of the coincidence department of round hole board 505 flow is the less, realize the flow of linear change shunt tubes 501 department, the flow of shunt tubes 501 department can adapt to and reduce after the flow of mainstream pipe 101 department increases.
The pump outlet minimum flow valve further comprises a rubber sleeve 105, a square barrel 106 and a lever 107, the square barrel 106 is arranged on the left side of the lower portion of the main flow pipe 101, the lever 107 penetrates through the square barrel 106, the middle of the lever 107 is hinged to the square barrel 106, the right end of the lever 107 is located below the bump 203, the left end of the rubber sleeve 105 is bonded to the lever 107, and the right end of the rubber sleeve 105 is bonded to the outer side of the left portion of the square barrel 106.
Referring to fig. 1-4, an embodiment of the present invention is provided to solve the main technical problem of forcibly moving the protrusion 203 and the gate 201 upward to completely open the main flow pipe 101, and further,
can stir lever 107 with the hand and rotate, and then drive the right-hand member of lever 107 upwards and lift, and then can drive lug 203 and flashboard 201 upward movement by force when needing, and then thoroughly open main flow pipe 101, rubber sleeve 105 is sealed between square tube 106 and the lever 107 under the circumstances that does not influence lever 107 pivoted.
Pump export minimum flow valve still includes nose bar 103 and hand screw 104, and the left side fixedly connected with nose bar 103 of main flow pipe 101, threaded connection has hand screw 104 on the nose bar 103, and the lower extreme of hand screw 104 pushes up the left part at lever 107.
When the hand screw 104 moves downward relative to the protruding rod 103, the left portion of the lever 107 can be pressed downward to descend, so as to drive the right portion of the lever 107 to ascend, and forcibly drive the protrusion 203 and the shutter 201 to move upward, so as to completely open the main flow pipe 101.

Claims (2)

1. A pump outlet minimum flow valve comprising a main flow pipe (101) and a shunt pipe (501), characterized in that: the flow dividing pipe (501) is arranged on the main flow pipe (101), the flow dividing pipe (501) is closed when the main flow pipe (101) is completely opened, the flow dividing pipe (501) is opened when the main flow pipe (101) is partially opened, and a silencing structure is arranged in the main flow pipe (101);
the main flow pipe is characterized by further comprising an inner ring seat (102) and a gate plate (201), wherein the inner ring seat (102) is arranged in the main flow pipe (101), the gate plate (201) is arranged at the inner ring seat (102), and the main flow pipe (101) is closed when the gate plate (201) is pressed at the inner ring seat (102);
the gate valve is characterized by further comprising a round rod (301), a gate frame (302) and a wafer (303), the gate frame (302) is arranged on the upper portion of the main flow pipe (101), the round rod (301) is fixedly connected to the upper side of the gate plate (201), the round rod (301) is vertically connected to the gate frame (302) in a sliding mode, a compression spring I is sleeved on the round rod (301) and located between the gate frame (302) and the gate plate (201), and the wafer (303) is fixedly connected to the upper end of the round rod (301);
the silencing structure comprises an annular seat (401), a buffer seat (402) and parallel grooves (403), wherein the annular seat (401) is arranged on the upper side of the flashboard (201), the buffer seats (402) are arranged on the annular seat (401), and the parallel grooves (403) are arranged on the buffer seats (402) from top to bottom;
the silencing structure further comprises vertical holes (404), a plurality of vertical holes (404) which are vertically arranged are formed in the buffer seat (402), and the vertical holes (404) penetrate through the parallel grooves (403);
the gate plate is characterized by further comprising a circular ring (202) and a blocking head (207), wherein the circular ring (202) is arranged in the center of the upper side of the gate plate (201), the center of the annular seat (401) is rotatably connected to the circular ring (202), and the blocking head (207) is arranged on the upper side of the circular ring (202);
the device also comprises a lug (203) and a storage groove (206), wherein the lug (203) is arranged on the lower side of the flashboard (201), and the storage groove (206) is arranged on the front side of the lug (203);
the device also comprises a disassembly plate (204), wherein the storage groove (206) on the lug (203) is detachably connected with the disassembly plate (204) through a screw;
the improved structure of the square column compression spring is characterized by further comprising a butterfly-shaped groove (205), a fixing plate (502), an L-shaped column (503), a fixing shaft (504), a round hole plate (505), a square column (601), a spring retaining sheet (602) and a sealing sheet (603), wherein the butterfly-shaped groove (205) is formed in the front side of the bump (203), the fixing shaft (504) is fixedly connected to the left portion of the shunt tube (501), one end of the L-shaped column (503) is rotatably connected to the fixing shaft (504), the other end of the L-shaped column (503) is inserted into the butterfly-shaped groove (205), the round hole plate (505) is arranged on the right portion of the shunt tube (501), a round hole is formed in the round hole plate (505), the fixing plate (502) is arranged in the middle of the shunt tube (501), the square column (601) is transversely slidably connected to the fixing plate (502), the sealing sheet (603) is fixedly connected to the right end of the square column (601), the sealing sheet (603) is located on the left side of the round hole in the round hole plate (505), the square column (601), a spring (602) is fixedly connected to the spring retaining sheet (602), a compression spring II) is sleeved on the right side of the square column (601).
2. A pump outlet minimum flow valve according to claim 1, wherein: still include chute (604) and cylinder sprue (605), the right side fixedly connected with cylinder sprue (605) of mounting plate (603), cylinder sprue (605) sliding connection is on the round hole on round hole board (505), is the annular on cylinder sprue (605) and is provided with a plurality of chutes (604), and the wide left end of right-hand member of chute (604) is narrow.
CN202110881750.4A 2021-08-02 2021-08-02 Pump export minimum flow valve Active CN113464714B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110881750.4A CN113464714B (en) 2021-08-02 2021-08-02 Pump export minimum flow valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110881750.4A CN113464714B (en) 2021-08-02 2021-08-02 Pump export minimum flow valve

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Publication Number Publication Date
CN113464714A CN113464714A (en) 2021-10-01
CN113464714B true CN113464714B (en) 2023-02-24

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JPH1054746A (en) * 1987-06-17 1998-02-24 Hitachi Ltd Air flow meter and internal combustion engine using the same
JP2003336763A (en) * 2002-05-22 2003-11-28 Yoshitake Inc Check valve with thermal float switch
CN201818559U (en) * 2010-09-29 2011-05-04 北京航天动力研究所 Automatic exhaust reflux valve
CN203335957U (en) * 2013-06-28 2013-12-11 温州蓝天管件阀门有限公司 Automatic circulating pump protective valve
CN203892638U (en) * 2014-06-18 2014-10-22 浙江诚一阀门有限公司 Multifunctional automatic recirculating pump protection valve
CN204591661U (en) * 2015-01-24 2015-08-26 浙江华大阀门有限公司 A kind of self-powering type automatic recirculating pump-protecting valve
CN209325066U (en) * 2018-12-27 2019-08-30 北京星光沃特传动研究所 A kind of automatic minimum flow valve
CN209340576U (en) * 2018-12-26 2019-09-03 沈阳水泵制造有限责任公司 Self-supporting minimum flow valve
CN210715974U (en) * 2019-10-31 2020-06-09 北京昌佳泵业有限公司 Sealing structure of minimum flow valve bypass pipeline

Patent Citations (11)

* Cited by examiner, † Cited by third party
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