CN116838588B - Pressure controller for water pump - Google Patents

Pressure controller for water pump Download PDF

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Publication number
CN116838588B
CN116838588B CN202310754315.4A CN202310754315A CN116838588B CN 116838588 B CN116838588 B CN 116838588B CN 202310754315 A CN202310754315 A CN 202310754315A CN 116838588 B CN116838588 B CN 116838588B
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CN
China
Prior art keywords
filter screen
water inlet
inlet channel
check valve
flexible filter
Prior art date
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Active
Application number
CN202310754315.4A
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Chinese (zh)
Other versions
CN116838588A (en
Inventor
林曦
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhejiang Monro Machinery & Electronic Co ltd
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Zhejiang Monro Machinery & Electronic Co ltd
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Application filed by Zhejiang Monro Machinery & Electronic Co ltd filed Critical Zhejiang Monro Machinery & Electronic Co ltd
Priority to CN202310754315.4A priority Critical patent/CN116838588B/en
Publication of CN116838588A publication Critical patent/CN116838588A/en
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/22Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by means of valves
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/22Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by means of valves
    • F04B49/225Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by means of valves with throttling valves or valves varying the pump inlet opening or the outlet opening
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B53/00Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B53/00Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/10Valves; Arrangement of valves
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B53/00Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/20Filtering

Abstract

The application discloses water pump pressure controller relates to water pump technical field, and it includes the controller body, and the controller body has the liquid chamber, and the controller body has the passageway of intaking, and the passageway of intaking communicates with the liquid chamber, and the passageway of intaking is equipped with the check valve spare that makes the passageway of intaking unidirectional conduction towards the liquid chamber, still is equipped with the filter element that is used for filtering solid impurity in the liquid in the passageway of intaking, and the filter element is located one side that the liquid chamber was kept away from to the check valve spare. The liquid is filtered through the filtering piece, solid impurities are reduced, the non-return effect of the non-return valve element is reduced due to the fact that impurity particles influence the non-return effect of the non-return valve element, the sealing effect of the non-return valve element on a water inlet channel is more stable, the water pump pressure controller is more stable to use, and the waste of pumped liquid caused by shutdown and disassembly maintenance is reduced, so that the non-return valve element is more energy-saving and environment-friendly.

Description

Pressure controller for water pump
Technical Field
The application relates to the technical field of water pumps, and more particularly, to a water pump pressure controller.
Background
The water pump pressure controller is an element for realizing the start and stop control of the water pump through the pressure change of the flow channel.
The Chinese patent with the patent publication number of CN102767509A discloses an improved electronic pressure controller, which comprises a middle body with a water inlet and a water outlet, a pressure diaphragm assembly arranged in a content cavity of the middle body, a pressure regulating rod assembly pressed on the pressure diaphragm assembly, a check valve assembly arranged in the water inlet and a flow floater assembly arranged at the water outlet; the control circuit board component is provided with a magnetic control element reed pipe at the position corresponding to the magnet arranged in the pressure membrane component and the flow floater component of the pressure controller of the water pump; the upper part of the middle body of the water pump pressure controller is fixedly connected with a pressure regulating head body; the pressure regulating rod assembly is wrapped by the pressure regulating head body of the water pump pressure controller; the manual pressure regulating cap of the water pump pressure controller is rotatably arranged above the pressure regulating head body and at the same time is arranged at the top of the pressure regulating rod assembly; a control box assembly containing a control circuit board assembly is connected below the middle body of the water pump pressure controller.
To above-mentioned technical scheme, when the water pump was closed, check valve assembly was used for shutoff water inlet, but when there was impurity in the liquid of water pump transport, when impurity granule adhesion was influenced laminating leakproofness in check valve assembly and water inlet laminating face, and the non return effect of check valve assembly received the influence, and is more troublesome, remains to improve.
Disclosure of Invention
In order to improve the condition that impurity particles influence the non-return effect of check valve assembly, this application provides a water pump pressure controller.
The application provides a water pump pressure controller adopts following technical scheme:
the utility model provides a water pump pressure controller, includes the controller body, the controller body has the liquid chamber, the controller body has the passageway of intaking, the passageway of intaking with the liquid chamber intercommunication, the passageway of intaking is equipped with the check valve spare that makes the passageway of intaking unidirectional conduction towards the liquid chamber, still be equipped with the filter element that is used for filtering solid impurity in the liquid in the passageway of intaking, the filter element is located one side that the liquid chamber was kept away from to the check valve spare.
Through above-mentioned technical scheme, filter the liquid through the filter, reduce solid impurity and get into, reduced the non return effect that impurity granule influences the non return valve member for the non return valve member is more stable to the closure effect of intake passage, and then makes water pump pressure controller use more stable, reduces because shut down and dismantle the waste that the maintenance leads to the liquid of pumping, more energy-concerving and environment-protective.
Optionally, the non-return valve member includes the lid board that the lid is in the intake passage is close to liquid chamber one end and sets up in the lid board towards the guide part of intake passage one end, the guide part embedding the intake passage is used for the direction the lid board slides along the intake passage extending direction.
Through above-mentioned technical scheme, slide through the lid board of guiding part direction for the operation of non return valve member is more stable.
Optionally, the filter element is including being fixed in ring body in the water inlet channel and being fixed in the flexible filter screen of ring body, flexible filter screen with be connected with the connecting rod between the non return valve member, the connecting rod sets up to drive flexible filter screen and keep away from non return valve member one end and form the recess towards liquid chamber direction is stretched straightly so that flexible filter screen keeps away from non return valve member one end when non return valve member moves towards liquid chamber direction and realizes unidirectional conduction, the recess is the convergent setting towards the direction that is close to non return valve member.
Through the technical scheme, when the check valve piece moves towards the liquid cavity to realize one-way conduction, the flexible filter screen is in a straightened state, so that the filter surface of the flexible filter screen is larger, and the filter effect is better. Connect between non return valve member and flexible filter screen through the connecting rod for flexible filter screen's is straightened more stable.
Optionally, the water inlet channel is equipped with the mounting bracket, the mounting bracket with the ring body is fixed relatively, the mounting bracket is located the flexible filter screen is kept away from one side of non return valve member, the mounting bracket is equipped with supporting part, the supporting part is located the flexible filter screen and is kept away from one side of non return valve member and be used for supplying flexible filter screen to support and lean on.
Through above-mentioned technical scheme, set up supporting part, when the non return valve member switches to the closed inlet channel state from switch-on state, the connecting rod drives flexible filter screen and removes and support and lean on to supporting part, and the removal inertia that forms this moment helps can deviate from flexible filter screen adnexed impurity for whole use is more durable stable.
Optionally, the supporting part with the mounting bracket rotates to be connected, the axis of rotation of supporting part with the axial lead of ring body is parallel, the supporting part has the piece of striking off, the mounting bracket still is equipped with drive structure, drive structure is used for driving the supporting part and rotates so that strike off the piece and right the flexible filter screen is striking off cleanly.
Through above-mentioned technical scheme, strike off the piece through drive structure drive and rotate and clean flexible filter screen for flexible filter screen's use is more durable stable.
Optionally, the driving structure includes a return spring and a screw rod, the screw rod is in threaded connection with the supporting part, and the return spring is arranged between the screw rod and the flexible filter screen; when the check valve piece moves towards the filtering piece and closes the water inlet channel, the return spring is compressed first, and then the spiral rod moves towards the direction far away from the check valve piece under the driving of the elastic force of the return spring to drive the supporting part to rotate.
Through the technical scheme, when the check valve element is converted from the one-way conduction state to the closed state, the flexible filter screen is enabled to be propped against the supporting portion under the driving of the connecting rod, the reset spring is compressed firstly at the moment, then the spiral rod is enabled to move towards the direction far away from the check valve element under the driving of the elastic force of the reset spring to drive the supporting portion to rotate, the supporting portion rotates to enable the scraping piece to scrape the flexible filter screen for cleaning, and the scraping piece is enabled to clean the flexible filter screen every time when the water pump is started to be closed.
Optionally, the screw rod is equipped with two spacing rings, two spacing rings one-to-one are located the axial both ends of supporting part and are used for restricting screw rod and supporting part and break away from.
Through above-mentioned technical scheme, fix a position the hob through the spacing ring for the removal of hob is spacing more stable.
Optionally, when the non-return valve is in a state of closing the water inlet channel, the flexible filter screen is in a state of being straightened towards a direction far away from the non-return valve, and at the moment, the end surface of the flexible filter screen far away from the non-return valve is in a conical surface, and the axis of the flexible filter screen is coincident with the rotation axis of the supporting part; the end face of the support part, which faces the flexible filter screen, is attached to the corresponding end face of the flexible filter screen when the check valve element is positioned in the closed water inlet channel.
Through the technical scheme, when the check valve piece is in the closed water inlet channel, the flexible filter screen is in a state of being stretched straight towards the direction away from the check valve piece, so that the scraping piece has a better cleaning effect on the flexible filter screen.
Optionally, a sliding frame is further arranged in the water inlet channel, the sliding frame is positioned on one side of the mounting frame far away from the filtering piece, a guide hole is formed in the sliding frame, and the guide hole is a non-circular hole; the screw rod has a guide rod portion passing through along the guide hole for restricting rotation of the screw rod.
Through above-mentioned technical scheme, slide the direction and restrict the hob rotation to the hob through guide bar portion and guiding hole cooperation for the hob drives the rotation of supporting part more stable.
In summary, the present application includes at least one of the following beneficial technical effects:
(1) The liquid is filtered through the filtering piece, so that solid impurities are reduced, the non-return effect of the non-return valve piece due to the fact that impurity particles influence is reduced, the sealing effect of the non-return valve piece on a water inlet channel is more stable, and the water pump pressure controller is more stable to use;
(2) Through setting up the supporting part, form the location when the non return valve member drives flexible filter screen deformation, help can deviate from the impurity that flexible filter screen adheres to through the mobile inertia for the whole use is more durable stable;
(3) Through setting up reset spring and hob for the water pump all can make the scraping member clean flexible filter screen from starting to the transition of closing at every turn, make cleaning effect more stable.
Drawings
FIG. 1 is a schematic cross-sectional view of an embodiment of a check valve member in a one-way conduction state;
FIG. 2 is an enlarged schematic view of portion A of FIG. 1;
FIG. 3 is a schematic view of a filter and a driving structure according to an embodiment;
FIG. 4 is a schematic cross-sectional view of an embodiment of a check valve member closed condition;
fig. 5 is an enlarged schematic view of the portion B in fig. 4.
Reference numerals: 1. a controller body; 2. a liquid chamber; 3. a water inlet channel; 31. a mounting groove; 4. a water outlet channel; 5. a check valve member; 51. a cover plate; 52. a guide part; 6. a filter; 61. a ring body; 62. a flexible filter screen; 7. a connecting rod; 8. a mounting frame; 9. a support part; 91. a scraper; 10. a driving structure; 101. a return spring; 102. a screw rod; 11. a limiting ring; 12. a sliding frame; 13. a guide hole; 14. and a guide rod part.
Detailed Description
The present application is described in further detail below with reference to the accompanying drawings.
The embodiment of the application discloses a water pump pressure controller.
Examples:
the utility model provides a water pump pressure controller, as shown in fig. 1 and 2, includes controller body 1, and controller body 1 has liquid chamber 2, and controller body 1 still has inlet channel 3 and outlet channel 4, and inlet channel 3 and outlet channel 4 all communicate with liquid chamber 2. The controller body 1 is also provided with a non-return valve element 5 and a filtering element 6, the non-return valve element 5 is positioned at one end of the water inlet channel 3, which is close to the liquid cavity 2, and the non-return valve element 5 enables the water inlet channel 3 to conduct unidirectionally towards the liquid cavity 2. The filter element 6 is located the one side that check valve element 5 kept away from liquid chamber 2, and filter element 6 is used for filtering the solid impurity that liquid kind mixes, and then has reduced the non return effect that impurity granule influences check valve element 5.
Referring to fig. 1 and 3, the check valve member 5 includes a cover plate 51 and a guiding portion 52, the cover plate 51 is disc-shaped, the guiding portion 52 is fixedly connected to an end face of the cover plate 51 facing the water inlet channel 3 and is embedded into the water inlet channel 3, the guiding portion 52 includes a plurality of rods uniformly distributed around an axis of the cover plate 51, in this example, the number of rods is three, an end face of the three rods, which deviates from the axis of the cover plate 51, is used for being attached to an inner wall of the water inlet channel 3, which is close to one end of the liquid cavity 2, and the guiding portion 52 is used for guiding sliding of the cover plate 51 along an extending direction of the water inlet channel 3. In practice, the end face of the cover plate 51 facing the water inlet channel 3 is further provided with a sealing ring, and the sealing ring surrounds the periphery of the water inlet channel 3, which is close to one end port of the liquid cavity 2, and is used for being attached to the inner wall of the liquid cavity 2 to strengthen sealing.
When the water pump pumps water, liquid flow enters the liquid cavity 2 along the water inlet channel 3, and at the moment, the liquid flow enables the check valve member 5 to slide in the direction away from the water inlet channel 3, so that the water inlet channel 3 and the liquid cavity 2 are in a conducting state. When the water pump stops working, the liquid flow pressure in the liquid cavity 2 pushes the cover plate to close the port of the water inlet channel 3, so that the liquid flow can not flow back into the water inlet channel 3 from the liquid cavity 2. Alternatively, the check valve member 5 may also be provided with a check valve installed in the water inlet channel 3 to achieve one-way communication from the water inlet channel 3 toward the liquid chamber 2.
Referring to fig. 1 and 3, one end of the water inlet channel 3 far away from the liquid cavity 2 is provided with a mounting groove 31, the diameter of the mounting groove 31 is larger than the inner diameter of the water inlet channel 3 near the liquid cavity 2, and a step surface is formed between the bottom of the mounting groove 31 and the inner wall of the water inlet channel 3 near the liquid cavity 2. The filter element 6 comprises a ring body 61 and a flexible filter screen 62, the ring body 61 is in a circular ring shape, the axis of the ring body 61 coincides with the axis of the water inlet channel 3, and the ring body 61 is fixedly arranged at the bottom of the mounting groove 31 through screws. The flexible filter screen 62 is a filter screen cloth or a stainless steel screen, the flexible filter screen 62 is fixedly connected to the ring body 61, the fixing mode can be bonding, the ring body 61 can also be set to be a double-layer structure, and the flexible filter screen 62 is fixed through bolts after being embedded between the double layers of the ring body 61.
Referring to fig. 1 and 3, a connecting rod 7 is connected between the flexible filter screen 62 and the check valve member 5, one end of the connecting rod 7 is fixedly connected to the center of the flexible filter screen 62, and the other end is fixedly connected to the cover plate 51 or the guide portion 52 of the check valve member 5. When the liquid flow drives the check valve element 5 to be in a state of being far away from the water inlet channel 3 to realize one-way conduction, the flexible filter screen 62 is straightened towards the direction of the liquid cavity 2 to form a cone shape, one end of the flexible filter screen 62, which is far away from the check valve element 5, forms a groove, and the groove is gradually reduced towards the direction close to the check valve element 5; when the non-return piece is in the state of being in to seal water inlet channel 3, flexible filter screen 62 is in the state of keeping away from the direction of non-return valve piece 5 and is stretched straight, and the terminal surface that flexible filter screen 62 kept away from non-return valve piece 5 is the conical surface this moment, and the axis of conical surface coincides with the axis of ring body 61, and the terminal surface laminating flexible filter screen 62 of supporting part 9 orientation flexible filter screen 62 corresponds the terminal surface.
Referring to fig. 1 and 3, a mounting frame 8 is further arranged in the water inlet channel 3, and the mounting frame 8 and the ring body 61 are relatively fixed. The mounting frame 8 may be fixedly mounted on the inner wall of the mounting groove 31, or may be directly fixedly mounted on the ring 61, and in this example, the mounting frame 8 is integrally fixed with the ring 61. The mounting frame 8 is provided with a support portion 9, the support portion 9 being located on the side of the flexible filter mesh 62 remote from the non-return valve element 5. The support portion 9 is rotatably connected with the mounting frame 8, the rotation axis of the support portion 9 coincides with the axis of the flexible filter screen 62 when being stretched in the direction away from the check valve member 5, and in order to reduce the rotation friction between the support portion 9 and the mounting frame 8, the support portion 9 and the mounting frame 8 are rotated through bearings, such as oil-free bearings or sealed bearings. The end of the supporting part 9, which is close to the flexible filter screen 62, is annular and is used for being attached to the end face of the flexible filter screen 62, which is in a straightened state in the direction away from the check valve element 5.
The supporting portion 9 has scraping pieces 91, the scraping pieces 91 extend along the outer end face of the flexible filter screen 62 in a state of being straightened away from the check valve element 5, three scraping pieces 91 are distributed around the rotation axis of the supporting portion 9, the scraping pieces 91 are scrapers or brushes, and when the scraping pieces 91 are scrapers, the thickness of the scrapers becomes smaller gradually toward the refresh close to the flexible filter screen 62. The mounting frame 8 is further provided with a driving structure 10, the driving structure 10 being used for driving the support 9 to rotate.
When the check valve is in a closed state, the supporting part 9 is used for abutting the flexible filter screen 62, the scraping piece 91 is attached to the end face of the flexible filter screen 62, and when the driving structure 10 drives the supporting part 9 to rotate at this time, the scraping piece 91 of the supporting part 9 is attached to the flexible filter screen 62 to rotate around the axis of the supporting part 9 so as to scrape and clean the flexible filter screen 62.
Referring to fig. 2 and 3, the driving structure 10 may be a driving motor, and in this example, the driving structure 10 includes a return spring 101 and a screw rod 102, the screw rod 102 is screwed with the supporting portion 9, and a lead angle of the screw rod 102 is greater than or equal to 45 degrees. The screw rod 102 is provided with two limiting rings 11, the limiting rings 11 are snap rings, and the two limiting rings 11 are located at two axial ends of the supporting portion 9 in one-to-one correspondence and are used for limiting the screw rod 102 to be separated from the supporting portion 9. The return spring 101 has one end fixedly connected to the flexible filter screen 62 and the other end fixedly connected to the screw rod 102.
Referring to fig. 4 and 5, when the check valve member 5 is switched from the one-way conduction state to the closed state, the check valve member 5 moves toward the filter member 6 and closes the water inlet channel 3, the return spring 101 is compressed first, and then the screw rod 102 is driven by the elastic force of the return spring 101 to move in a direction away from the check valve member 5, and the screw rod 102 moves to drive the supporting portion 9 to rotate so that the scraping member 91 scrapes and cleans the end surface of the flexible filter screen 62 away from the check valve member 5.
When the check valve member 5 is switched from the closed state to the one-way conduction state, the check valve member 5 moves towards the direction away from the filter member 6, at this time, the return spring 101 is stretched first, then the return spring 101 is driven by the elastic force to move the spiral rod 102 towards the direction close to the check valve member 5, at this time, the movement of the spiral rod 102 drives the supporting part 9 to rotate reversely, so that the impurities attached to the scraping member 91 can be carried out by the liquid flow under the reverse rotation, the adhesion of the solid impurities is reduced, and the scraping of the scraping member 91 is more stable.
Referring to fig. 3 and 5, in order to improve the sliding stability of the screw rod 102, a sliding frame 12 is further provided in the water inlet channel 3, the sliding frame 12 is located at one side of the mounting frame 8 away from the filter element 6, the sliding frame 12 may be fixed on the inner wall of the mounting groove 31, and may also be fixed on the mounting frame 8, in this example, the sliding frame 12 is integrally fixed with the mounting frame 8, the sliding frame 12 is provided with a guiding hole 13, the guiding hole 13 is a non-circular hole, such as a square hole, a regular hexagonal hole, a D-shaped hole, etc., and the penetrating direction of the guiding hole 13 is along the direction of the axis of the screw rod 102. The screw 102 has a guide rod portion 14, a sectional shape of the guide rod portion 14 perpendicular to its own axis is fitted to the guide hole 13, and the guide rod portion 14 passes through the guide hole 13 for restricting rotation of the screw 102.
The working principle of the embodiment is as follows:
the water pump pressure controller is connected to the water outlet end of the water pump when in use, when the water pump runs, the liquid flow enables the check valve member 5 to be in a one-way conduction state from the water inlet channel 3 to the liquid cavity 2, solid impurities in the liquid flow are filtered through the filter element 6 at the moment, large-particle solid impurities are reduced to pass through the filter element 6, and then the check effect of the impurity particles affecting the check valve member 5 is reduced. When the water pump is turned off, when the check valve element 5 is switched from the one-way conduction state to the closed state, the driving structure 10 drives the scraping element 91 to scrape the flexible filter screen 62 for cleaning, when the check valve element 5 is switched from the closed state to the one-way conduction state, the driving structure 10 drives the supporting part 9 to reversely rotate to clean sundries attached to the scraping element 91, so that the cleaning effect is more stable, and the filtering effect of the filtering element 6 is more durable and stable.
The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims (2)

1. A water pump pressure controller, characterized in that: the liquid filter comprises a controller body (1), wherein the controller body (1) is provided with a liquid cavity (2), the controller body (1) is provided with a water inlet channel (3), the water inlet channel (3) is communicated with the liquid cavity (2), the water inlet channel (3) is provided with a check valve element (5) which enables the water inlet channel (3) to be conducted unidirectionally towards the liquid cavity (2), a filter element (6) for filtering solid impurities in liquid is further arranged in the water inlet channel (3), and the filter element (6) is positioned on one side, far away from the liquid cavity (2), of the check valve element (5);
the check valve member (5) comprises a cover plate covered on one end of the water inlet channel (3) close to the liquid cavity (2) and a guide part (52) arranged on one end of the cover plate, which faces the water inlet channel (3), wherein the guide part (52) is embedded into the water inlet channel (3) and used for guiding the cover plate to slide along the extending direction of the water inlet channel (3);
the filtering piece (6) comprises a ring body (61) fixed in the water inlet channel (3) and a flexible filter screen (62) fixed in the ring body (61), a connecting rod (7) is connected between the flexible filter screen (62) and the check valve piece (5), the connecting rod (7) is arranged to drive the flexible filter screen (62) to stretch straight towards the direction of the liquid cavity (2) when the check valve piece (5) moves towards the direction of the liquid cavity (2) to realize unidirectional conduction, so that a groove is formed at one end of the flexible filter screen (62) away from the check valve piece (5), and the groove is gradually reduced towards the direction close to the check valve piece (5);
the water inlet channel (3) is provided with a mounting frame (8), the mounting frame (8) and the ring body (61) are relatively fixed, the mounting frame (8) is positioned on one side of the flexible filter screen (62) away from the check valve element (5), the mounting frame (8) is provided with a supporting part (9), and the supporting part (9) is positioned on one side of the flexible filter screen (62) away from the check valve element (5) and is used for supporting the flexible filter screen (62) to lean against;
the supporting part (9) is rotationally connected with the mounting frame (8), the supporting part (9) is provided with a scraping piece (91), the mounting frame (8) is also provided with a driving structure (10), and the driving structure (10) is used for driving the supporting part (9) to rotate so that the scraping piece (91) scrapes and cleans the flexible filter screen (62);
the driving structure (10) comprises a reset spring (101) and a screw rod (102), the screw rod (102) is in threaded connection with the supporting part (9), and the reset spring (101) is arranged between the screw rod (102) and the flexible filter screen (62); when the check valve element (5) moves towards the direction of the filtering element (6) and closes the water inlet channel (3), the return spring (101) is compressed firstly, and then the screw rod (102) moves towards the direction far away from the check valve element (5) under the driving of the elastic force of the return spring (101) to drive the supporting part (9) to rotate;
when the non-return valve element (5) is positioned to close the water inlet channel (3), the flexible filter screen (62) is positioned in a state of being stretched in a direction far away from the non-return valve element (5), and at the moment, the end surface of the flexible filter screen (62) far away from the non-return valve element (5) is a conical surface, and the axis of the flexible filter screen is coincident with the rotation axis of the supporting part (9); the end face of the supporting part (9) facing the flexible filter screen (62) is attached to the corresponding end face of the flexible filter screen (62) when the check valve element (5) is positioned in the closed water inlet channel (3);
a sliding frame (12) is further arranged in the water inlet channel (3), the sliding frame (12) is positioned on one side, far away from the filter element (6), of the mounting frame (8), a guide hole (13) is formed in the sliding frame (12), and the guide hole (13) is a non-circular hole; the screw rod (102) has a guide rod portion (14), and the guide rod portion (14) passes through along the guide hole (13) for restricting the rotation of the screw rod (102).
2. The water pump pressure controller of claim 1, wherein: the screw rod (102) is provided with two limiting rings (11), and the two limiting rings (11) are located at two axial ends of the supporting portion (9) in one-to-one correspondence and are used for limiting the screw rod (102) to be separated from the supporting portion (9).
CN202310754315.4A 2023-06-25 2023-06-25 Pressure controller for water pump Active CN116838588B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310754315.4A CN116838588B (en) 2023-06-25 2023-06-25 Pressure controller for water pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310754315.4A CN116838588B (en) 2023-06-25 2023-06-25 Pressure controller for water pump

Publications (2)

Publication Number Publication Date
CN116838588A CN116838588A (en) 2023-10-03
CN116838588B true CN116838588B (en) 2024-02-06

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Application Number Title Priority Date Filing Date
CN202310754315.4A Active CN116838588B (en) 2023-06-25 2023-06-25 Pressure controller for water pump

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Citations (4)

* Cited by examiner, † Cited by third party
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CN204664500U (en) * 2015-05-06 2015-09-23 浙江新控泵业有限公司 Structure improved safety check
CN217842037U (en) * 2022-07-21 2022-11-18 湖南恒昇科技有限公司 Integrated pump set
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GB929526A (en) * 1961-03-20 1963-06-26 Avery Hardoll Ltd Improvements in or relating to couplings for flexible conduits
CN204664500U (en) * 2015-05-06 2015-09-23 浙江新控泵业有限公司 Structure improved safety check
CN217842037U (en) * 2022-07-21 2022-11-18 湖南恒昇科技有限公司 Integrated pump set
CN115724559A (en) * 2022-12-27 2023-03-03 四川北方红光特种化工有限公司 Waste water treatment device

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