CN215721210U

CN215721210U - Self-operated differential pressure control valve with adjustable differential pressure

Info

Publication number: CN215721210U
Application number: CN202120840716.8U
Authority: CN
Inventors: 陈彪
Original assignee: Tianjin Langken Energy Technology Co ltd
Current assignee: Tianjin Langken Energy Technology Co ltd
Priority date: 2021-04-22
Filing date: 2021-04-22
Publication date: 2022-02-01
Anticipated expiration: 2031-04-22

Abstract

The application provides a self-operated differential pressure control valve with adjustable differential pressure, and belongs to the field of self-operated differential pressure control valves. This control valve includes pressure differential control valve body and wiper mechanism, pressure differential control valve body one end is provided with the outlet pipe, the inside delivery port of outlet pipe is provided with the filter screen, wiper mechanism includes first electric putter, second electric putter and sludge pump, first electric putter output shaft runs through outlet pipe and perpendicular connection have the scraper blade, the outlet pipe top is provided with time switch, time switch with first electric putter electric connection, second electric putter pass through the mounting bracket set up in the top of outlet pipe water outlet end, second electric putter output shaft has the fan, sludge pump one end intercommunication has the blow off pipe, the blow off pipe with the outlet pipe intercommunication, sludge pump other end intercommunication has the blow off case, and this formula of relying on oneself pressure differential control valve is convenient for wash the filter screen in the valve body is inside.

Description

Self-operated differential pressure control valve with adjustable differential pressure

Technical Field

The application relates to the field of self-operated differential pressure control valves, in particular to a self-operated differential pressure control valve with adjustable differential pressure.

Background

The self-operated pressure difference control valve can automatically eliminate the residual pressure head of a pipe network and the pressure difference of the inlet and the outlet of a user with constant flow deviation caused by pressure fluctuation, is favorable for stabilizing the operation of the system, and is particularly suitable for household metering or automatic control systems. A filter screen is often required to be installed at the water outlet of the self-operated differential pressure control valve so as to filter impurities. After the self-operated differential pressure control valve is used for a long time, more impurities can be accumulated on the filter screen, and the filtering effect of the water outlet can be influenced if the impurities are not cleared in time. The traditional cleaning mode is usually to detach the filter screen for cleaning, and the mode is troublesome and has certain limitation.

How to invent a differential pressure adjustable self-operated differential pressure control valve to improve the problems becomes a problem to be solved urgently by the technical personnel in the field.

SUMMERY OF THE UTILITY MODEL

In order to make up for above not enough, the application provides a self-operated differential pressure control valve of adjustable type of pressure differential, aims at improving the inconvenient abluent problem of filter screen of self-operated differential pressure control valve.

The embodiment of the application provides a pressure difference adjustable self-operated pressure difference control valve, which comprises a pressure difference control valve body and a cleaning mechanism, wherein one end of the pressure difference control valve body is provided with a water outlet pipe, a water outlet in the water outlet pipe is provided with a filter screen, the cleaning mechanism comprises a first electric push rod, a second electric push rod and a sludge pump, the first electric push rod is arranged at the top of the water outlet pipe, an output shaft of the first electric push rod penetrates through the water outlet pipe and is vertically connected with a scraper, the scraper is in sliding connection with the filter screen, the top of the water outlet pipe is provided with a timing switch, the timing switch is electrically connected with the first electric push rod, the second electric push rod is arranged at the top of the water outlet end of the water outlet pipe through a mounting frame, the output shaft of the second electric push rod is connected with a fan, one end of the sludge pump is communicated with a sewage discharge pipe, and the sewage discharge pipe is communicated with the water outlet pipe, the other end of the sludge pump is communicated with a sewage draining tank.

In the implementation process, when more sundries are accumulated on the filter screen, the first electric push rod is started, the output shaft of the first electric push rod extends to drive the scraper blade to move from top to bottom along the filter screen, so that the sundries on the filter screen drop, the scraper blade can reciprocate through the first electric push rod to clean the filter screen for multiple times, the timing switch can start the first electric push rod at intervals, the second electric push rod can be started while the scraper blade moves, the output shaft of the second electric push rod extends or retracts to drive the fan to move up and down, the fan is positioned outside the water outlet pipe and faces the filter screen, so that the sundries breaking away is accelerated, the broken-away sundries or sludge are positioned below one side of the filter screen, the sludge pump is started, the sundries or sludge are sucked into the sewage discharge box through the sewage discharge pipe to be stored, and the self-operated pressure difference control valve is convenient for cleaning the filter screen inside the valve body.

In a specific embodiment, a sealing ring is arranged between the output shaft of the first electric push rod and the inner wall of the water outlet pipe, and the inner surface of the sealing ring is movably connected with the outer surface of the output shaft of the first electric push rod.

In the implementation process, in the process that the first electric push rod output shaft stretches, the sealing ring enables water in the water outlet pipe to flow outside the water outlet pipe difficultly through a gap between the first electric push rod output shaft and the inner wall of the water outlet pipe.

In a specific embodiment, filter screen top and bottom all are provided with the connecting seat, the spacing groove has been seted up to the connecting seat, outlet pipe inner wall top and inner wall bottom all seted up flutedly, the recess inner wall has the connecting block through spring coupling, connecting block one end be provided with the stopper of spacing groove looks adaptation, the connecting block other end is provided with the pull rod, the pull rod activity run through extremely the outlet pipe is outside.

In the above-mentioned realization process, because the filter screen is close to the delivery port of outlet pipe, the personnel of being convenient for contact, if the filter screen damages or ages, pulling pull rod this moment, the spring compression, the stopper breaks away from the spacing groove to relieve being connected of filter screen and outlet pipe, the staff can stretch into the delivery port of outlet pipe with the hand and take off the filter screen.

In a specific implementation scheme, the end part of the connecting seat is positioned on two sides of the limiting groove and is provided with a first magnetic block, the end part of the connecting block is positioned on two sides of the limiting groove and is provided with a fixing groove, and the inner wall of the fixing groove is provided with a second magnetic block which is mutually adsorbed with the first magnetic block.

In the above-mentioned realization process, when the filter screen was installed again, hold the pull rod and make the spring compression, put into the play water pipe with the filter screen again, loosen the pull rod, under the reaction force's of spring the condition, the stopper gets into the spacing groove, and the connecting block is close to the connecting seat simultaneously, and first magnetic path gets into the fixed slot and adsorbs each other with the second magnetic path this moment, has strengthened the connection effect of connecting seat and connecting block.

In a specific embodiment, the sum of the thicknesses of the first magnetic block and the second magnetic block is equal to the height of the fixing groove.

In the implementation process, after the first magnetic block completely enters the fixing groove, the end parts of the connecting block and the connecting base, which are close to each other, can be kept parallel, so that the connecting block is tightly attached to the connecting base.

In a specific embodiment, a handle is arranged at one end of the pull rod, which is positioned outside the water outlet pipe.

In the implementation process, the handle is convenient for pulling the pull rod.

In a specific embodiment, the air outlet of the fan is connected with a sealing cover through a pull rope.

In the above-mentioned realization process, when the control valve used, fan accessible second electric putter removed the top of outlet pipe delivery port, and the sealed lid of rethread covers in the air outlet of fan, and when rivers passed through the delivery port of outlet pipe, rivers were difficult for entering into inside the fan through the air outlet of fan, have protected the fan to a certain extent.

In a specific implementation scheme, the plurality of the sewage discharge pipes are uniformly distributed below one side, far away from the water outlet of the water outlet pipe, of the filter screen.

In the implementation process, the plurality of sewage discharge pipes are convenient for collecting sludge or impurities at different positions in the water outlet pipe.

In a specific embodiment, each of the drain pipes is provided with a one-way valve.

In the implementation process, the one-way valve prevents the sludge or impurities entering the sewage discharge pipe from flowing back to the inside of the water outlet pipe.

In a specific embodiment, the mounting frame and the water outlet pipe are detachably designed.

In the realization process, the mounting frame can be disassembled by the design, so that the fan can be taken down to be maintained in the later period.

Drawings

In order to more clearly explain the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and that for those skilled in the art, other related drawings can be obtained from these drawings without inventive effort.

Fig. 1 is a schematic structural diagram of a differential pressure adjustable self-operated differential pressure control valve according to an embodiment of the present disclosure;

FIG. 2 is a partial cross-sectional view of a differential pressure control valve provided in accordance with an embodiment of the present application;

FIG. 3 is an enlarged view of FIG. 2 at A provided in accordance with an embodiment of the present application;

fig. 4 is an enlarged view of a portion B in fig. 2 according to an embodiment of the present disclosure.

In the figure: 100-differential pressure control valve body; 110-a water outlet pipe; 111-a screen; 112-a time switch; 113-sealing ring; 114-a connecting seat; 1141 — a first magnetic block; 115-a limiting groove; 116-a groove; 117-connecting block; 1171-a limiting block; 1172-a pull rod; 118-a fixation groove; 1181-a second magnetic block; 200-a cleaning mechanism; 210-a first electric putter; 211-a scraper; 220-a second electric push rod; 221-a mounting frame; 222-a fan; 223-a sealing cover; 230-sludge pump; 231-a sewage draining pipe; 232-a sewage draining tank; 233-one-way valve.

Detailed Description

The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.

To make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art without any inventive work based on the embodiments in the present application are within the scope of protection of the present application.

Thus, the following detailed description of the embodiments of the present application, as presented in the figures, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments obtained by a person of ordinary skill in the art without any inventive work based on the embodiments in the present application are within the scope of protection of the present application.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and thus should not be considered limiting.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Referring to fig. 1, the present application provides a differential pressure control valve body 100 and a purge mechanism 200.

Referring to fig. 2-4, one end of the differential pressure control valve body 100 is provided with a water outlet pipe 110, a water outlet inside the water outlet pipe 110 is provided with a filter screen 111, the cleaning mechanism 200 includes a first electric push rod 210, a second electric push rod 220 and a sludge pump 230, the first electric push rod 210 is arranged at the top of the water outlet pipe 110, an output shaft of the first electric push rod 210 penetrates through the water outlet pipe 110 and is vertically connected with a scraper 211, the scraper 211 is slidably connected with the filter screen 111, the top of the water outlet pipe 110 is provided with a timing switch 112, the timing switch 112 is electrically connected with the first electric push rod 210, the second electric push rod 220 is arranged at the top of the water outlet end of the water outlet pipe 110 through an installation frame 221, an output shaft of the second electric push rod 220 is connected with a fan 222, one end of the sludge pump 230 is communicated with a sewage discharge pipe 231, the sewage discharge pipe 231 is communicated with the water outlet pipe 110, and the other end of the sludge pump 230 is communicated with a sewage tank 232.

In some specific embodiments, a sealing ring 113 is disposed between the output shaft of the first electric push rod 210 and the inner wall of the water outlet pipe 110, the inner surface of the sealing ring 113 is movably connected to the outer surface of the output shaft of the first electric push rod 210, and in the process of extending and retracting the output shaft of the first electric push rod 210, the sealing ring 113 prevents water in the water outlet pipe 110 from flowing to the outside of the water outlet pipe 110 through a gap between the output shaft of the first electric push rod 210 and the inner wall of the water outlet pipe 110.

In some specific embodiments, the top and the bottom of the filter screen 111 are both provided with the connecting seat 114, the connecting seat 114 has been provided with a limiting groove 115, the top and the bottom of the inner wall of the water outlet pipe 110 have been provided with grooves 116, the inner wall of the groove 116 is connected with a connecting block 117 through a spring, one end of the connecting block 117 is provided with a limiting block 1171 matched with the limiting groove 115, the other end of the connecting block 117 is provided with a pull rod 1172, the pull rod 1172 movably penetrates to the outside of the water outlet pipe 110, because the filter screen 111 is close to the water outlet of the water outlet pipe 110, the personnel can contact the water outlet, if the filter screen 111 is damaged or aged, the pull rod 1172 is pulled at the moment, the spring is compressed, the limiting block 1171 is separated from the limiting groove 115, so as to remove the connection between the filter screen 111 and the water outlet pipe 110, and the personnel can stretch hands into the water outlet of the water outlet pipe 110 to take down the filter screen 111.

In some specific embodiments, the first magnetic blocks 1141 are disposed at the end of the connecting base 114 and at the two sides of the limiting groove 115, the fixing grooves 118 are disposed at the end of the connecting block 117 and at the two sides of the limiting block 1171, the second magnetic blocks 1181 mutually adsorbed with the first magnetic blocks 1141 are disposed on the inner wall of the fixing grooves 118, when the filter screen 111 is remounted, the pull rod 1172 is pulled to compress the spring, the filter screen 111 is placed in the water outlet pipe 110, the pull rod 1172 is released, under the reaction force of the spring, the limiting block 1171 enters the limiting groove 115, meanwhile, the connecting block 117 is close to the connecting base 114, at this time, the first magnetic blocks 1141 enter the fixing grooves 118 and are mutually adsorbed with the second magnetic blocks 1181, and the connecting effect of the connecting base 114 and the connecting block 117 is enhanced.

In some specific embodiments, the sum of the thicknesses of the first magnetic block 1141 and the second magnetic block 1181 is equal to the height of the fixing groove 118, and after the first magnetic block 1141 completely enters the fixing groove 118, the end portions of the connecting block 117 and the connecting block 114, which are close to each other, may be kept parallel, so that the connecting block 117 is tightly attached to the connecting block 114.

In some embodiments, the end of the pull rod 1172 external to the outlet tube 110 is provided with a handle that facilitates pulling of the pull rod 1172.

In some specific embodiments, the air outlet of the blower 222 is connected to the sealing cover 223 through a pull rope, when the control valve is used, the blower 222 can move above the water outlet of the water outlet pipe 110 through the second electric push rod 220, and then the sealing cover 223 covers the air outlet of the blower 222, when water flows through the water outlet of the water outlet pipe 110, the water flow is not easy to enter the blower 222 through the air outlet of the blower 222, and the blower 222 is protected to a certain extent.

In some specific embodiments, the plurality of drain pipes 231 are provided, the plurality of drain pipes 231 are uniformly distributed below one side of the filter screen 111 far away from the water outlet of the water outlet pipe 110, and the plurality of drain pipes 231 are convenient for collecting sludge or impurities at different positions in the water outlet pipe 110.

In some embodiments, a check valve 233 is disposed on each of the sewage pipes 231, and the check valve 233 prevents the sludge or impurities entering the sewage pipes 231 from flowing back into the outlet pipe 110.

In some embodiments, the mounting bracket 221 and the outlet pipe 110 are detachable, and the mounting bracket 221 can be detached to remove the fan 222 for later maintenance.

The working principle of the pressure difference adjustable self-operated pressure difference control valve is as follows: when more impurities are accumulated on the filter screen 111, the first electric push rod 210 is started, the output shaft of the first electric push rod 210 extends to drive the scraper 211 to move along the filter screen 111 from top to bottom, so that the impurities on the filter screen 111 fall off, the scraper 211 can reciprocate through the first electric push rod 210, so as to clean the filter screen 111 a plurality of times, the timing switch 112 may activate the first electric push rod 210 at intervals, the second electric push rod 220 can be started while the scraper 211 moves, the output shaft of the second electric push rod 220 extends or contracts to drive the fan 222 to move up and down, the fan 222 is positioned outside the water outlet pipe 110, the air outlet faces the filter screen 111, so as to accelerate the speed of the detachment of the impurities, the detached impurities or sludge are positioned below one side of the filter screen 111, the sludge pump 230 is started, foreign materials or sludge are sucked into the soil box 232 through the soil pipe 231 for storage, and the self-operated differential pressure control valve facilitates cleaning of the filter screen 111 inside the valve body.

The above description is only an example of the present application and is not intended to limit the scope of the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A self-operated differential pressure control valve with adjustable differential pressure is characterized by comprising

The pressure difference control valve comprises a pressure difference control valve body (100), wherein one end of the pressure difference control valve body (100) is provided with a water outlet pipe (110), and a water outlet in the water outlet pipe (110) is provided with a filter screen (111);

cleaning mechanism (200), cleaning mechanism (200) includes first electric putter (210), second electric putter (220) and sludge pump (230), first electric putter (210) are located outlet pipe (110) top, first electric putter (210) output shaft runs through outlet pipe (110) and is connected with scraper blade (211) perpendicularly, scraper blade (211) with filter screen (111) sliding connection, outlet pipe (110) top is provided with time switch (112), time switch (112) with first electric putter (210) electric connection, second electric putter (220) through mounting bracket (221) set up in the top of outlet pipe (110) water outlet end, second electric putter (220) output shaft has fan (222), sludge pump (230) one end intercommunication has blow off pipe (231), blow off pipe (231) with outlet pipe (110) intercommunication, the other end of the sludge pump (230) is communicated with a sewage draining tank (232).

2. The differential pressure adjustable self-operated differential pressure control valve according to claim 1, wherein a sealing ring (113) is arranged between the output shaft of the first electric push rod (210) and the inner wall of the water outlet pipe (110), and the inner surface of the sealing ring (113) is movably connected with the outer surface of the output shaft of the first electric push rod (210).

3. The self-operated differential pressure control valve with the adjustable differential pressure according to claim 1, wherein the top and the bottom of the filter screen (111) are provided with connecting seats (114), the connecting seats (114) are provided with limiting grooves (115), the top and the bottom of the inner wall of the water outlet pipe (110) are provided with grooves (116), the inner wall of each groove (116) is connected with a connecting block (117) through a spring, one end of each connecting block (117) is provided with a limiting block (1171) matched with the corresponding limiting groove (115), the other end of each connecting block (117) is provided with a pull rod (1172), and each pull rod (1172) movably penetrates through the outside of the water outlet pipe (110).

4. The self-operated differential pressure control valve with adjustable differential pressure according to claim 3, wherein a first magnetic block (1141) is arranged at the end of the connecting base (114) and located on two sides of the limiting groove (115), a fixing groove (118) is arranged at the end of the connecting block (117) and located on two sides of the limiting block (1171), and a second magnetic block (1181) mutually adsorbed with the first magnetic block (1141) is arranged on the inner wall of the fixing groove (118).

5. The differential pressure adjustable self-operated differential pressure control valve as claimed in claim 4, wherein the sum of the thicknesses of the first magnetic block (1141) and the second magnetic block (1181) is equal to the height of the fixing groove (118).

6. The self-operated differential pressure control valve with adjustable differential pressure according to claim 3, wherein the end of the pull rod (1172) outside the water outlet pipe (110) is provided with a handle.

7. The self-operated differential pressure control valve with adjustable differential pressure according to claim 1, wherein the air outlet of the blower (222) is connected with a sealing cover (223) through a pull rope.

8. The pressure difference adjustable self-operated pressure difference control valve according to claim 1, wherein a plurality of sewage pipes (231) are arranged, and the plurality of sewage pipes (231) are uniformly distributed below one side of the filter screen (111) far away from the water outlet of the water outlet pipe (110).

9. The self-operated differential pressure control valve with adjustable differential pressure according to claim 8, wherein each sewage draining pipe (231) is provided with a one-way valve (233).

10. The differential pressure adjustable self-operated differential pressure control valve according to claim 1, wherein the mounting bracket (221) and the outlet pipe (110) are detachably arranged.