CN215721066U

CN215721066U - Self-operated differential pressure control valve capable of adjusting sealing pressing force of valve element

Info

Publication number: CN215721066U
Application number: CN202120840464.9U
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 formula of relying on oneself differential pressure control valve of adjustable case sealing packing force belongs to differential pressure control valve technical field. The self-operated differential pressure control valve capable of adjusting the sealing pressing force of the valve core comprises a shell assembly and a pressing force adjusting assembly. The connecting pipe with threaded connection between the inlet tube, go out water piping connection the opposite side of valve body, the mount pad is connected the below of valve body. The buffer connecting rod is connected with the valve body in a sliding mode, the pressing plate is arranged inside the valve body and connected with the buffer connecting rod, the movable block is movably connected below the second spring, the valve core is movably connected below the movable block, and the movable block and the valve core are arranged between the water inlet pipe and the water outlet pipe. The method is favorable for improving the adjustment range of the pressure difference, improves the universality of the pressure difference control valve, improves the service efficiency of the control valve and reduces the replacement of the control valve.

Description

Self-operated differential pressure control valve capable of adjusting sealing pressing force of valve element

Technical Field

The application relates to the field of differential pressure control valves, in particular to a self-operated differential pressure control valve capable of adjusting sealing pressing force of a valve core.

Background

The pressure difference control valve is generally arranged on a water return pipe at a user inlet, however, the existing pressure difference control valve is poor in universality and can only be opened within a fixed pressure range, the range of pressure difference adjustment is small, if the pressure range needs to be changed after the pressure control valve is arranged on a pipeline to open the control valve, the control valve needs to be replaced again, so that the operation is time-consuming and labor-consuming, resources are wasted, how to invent a self-operated pressure difference control valve capable of adjusting the sealing pressing force of a valve core is to improve the problems, and the problems are needed to be solved at present.

SUMMERY OF THE UTILITY MODEL

In order to make up for the defects, the application provides a self-operated pressure difference control valve capable of adjusting the sealing pressing force of a valve core, and aims to improve the problems that the existing pressure difference control valve is poor in universality and can only be opened within a fixed pressure range, the range of pressure difference adjustment is small, if the pressure range needs to be changed after the self-operated pressure difference control valve is installed on a pipeline to enable the control valve to be opened, a new control valve needs to be replaced, and the operation is time-consuming and labor-consuming and wastes resources.

The embodiment of the application provides a self-operated differential pressure control valve capable of adjusting sealing pressing force of a valve core.

The casing subassembly includes valve body, inlet tube, connecting pipe, sealing member, mounting, outlet pipe and mount pad, advance water piping connection and be in one side of valve body, the connecting pipe with threaded connection between the inlet tube, the sealing member sets up the inlet tube with between the connecting pipe, the mounting is fixed the surface of connecting pipe, the mounting with the sealing member contact is connected, it is in to go out water piping connection the opposite side of valve body, the mount pad is connected the below of valve body.

The pressing force adjusting component comprises a threaded rod, an adjusting plate, a pressing block, a buffer connecting rod, a pressing plate, a second spring, a movable block and a valve core, the threaded rod is fixed above the valve body, the adjusting plate is sleeved outside the threaded rod, the pressing block is in threaded connection with the threaded rod and is in contact connection with the adjusting plate, the buffer connecting rod is connected with the two ends below the adjusting plate and is connected with the valve body in a sliding way, the pressure plate is arranged in the valve body, the pressure plate is connected with the buffer connecting rod, the second spring is connected below the pressure plate, the movable block is movably connected below the second spring, the valve core is movably connected below the movable block, and the movable block and the valve core are arranged between the water inlet pipe and the water outlet pipe.

In the implementation process, the bottom of the valve body is fixedly installed through the installation seat, after the installation is completed, the adjusting plate is pressed down by rotating the press block, so that the buffer connecting rod and the press plate are driven to move in the valve body, the position of the second spring can be adjusted, the positions of the movable block and the valve core as well as the water inlet pipe and the water outlet pipe can be changed, the valve body is adjusted in pressure within a certain range, then a water source is connected, after water flows into the water inlet pipe, the valve core is jacked upwards, so that the movable block is driven to move upwards until the valve core is communicated with the water outlet pipe, so that the water inlet pipe is communicated with the water outlet pipe, the compression state of the second spring can be changed by adjusting the position of the press block on the threaded rod, the adjustment range of the pressure difference can be changed, the adjustment range of the pressure difference can be favorably improved, and the universality of the pressure difference control valve is improved, the service efficiency of the control valve is improved, and the replacement of the control valve is reduced.

In a specific embodiment, the sealing element comprises a sealing ring and a sealing gasket, the sealing ring is arranged in the water inlet pipe, and the sealing gasket is arranged between the water inlet pipe and the connecting pipe.

In the implementation process, the sealing performance of connection between the water inlet pipe and the connecting pipe is improved by arranging the sealing ring and the sealing gasket.

In a specific embodiment, a filter screen is connected to the inside of the water inlet pipe, and the filter screen is arranged close to one end of the water inlet pipe.

In the implementation process, the filter screen is arranged to be beneficial to filtering impurities in water, and the water inlet pipe and the valve body are prevented from being blocked.

In a specific embodiment, the diameter of the filter screen is the same as the inner diameter of the water inlet pipe, and the diameter of the filter screen is smaller than the diameter of the sealing ring.

In the above-mentioned realization process, connecting pipe and inlet tube intercommunication, the diameter of filter screen is the same with the internal diameter of inlet tube and is favorable to improving the filter effect of impurity.

In a specific embodiment, the mounting includes first solid fixed ring and the solid fixed ring of second, first solid fixed ring with the solid fixed ring of second is fixed respectively the surface of connecting pipe, sealed the pad setting is in first solid fixed ring, the solid fixed ring of second and between the inlet tube.

In the implementation process, the first fixing ring and the second fixing ring are arranged to be favorable for fixing the position of the sealing gasket, so that the sealing performance between the water inlet pipe and the connecting pipe is further improved.

In a specific implementation scheme, one end of the water inlet pipe and one end of the water outlet pipe are connected with a connecting disc, and a mounting hole is formed in the connecting disc.

In the implementation process, the water inlet pipe and the water outlet pipe are communicated with the external pipeline through the connecting disc and the external pipeline.

In a specific embodiment, the mounting seat comprises a base and a connector, the base is connected below the valve body, and the connector is fixed below the base.

In the implementation process, the base and the connector are arranged to be favorable for fixing the bottom of the valve body.

In a specific embodiment, the buffer connecting rod comprises a rod body and a first spring, the rod body is connected below the adjusting plate, the rod body is in sliding connection with the valve body, and the first spring is wound on the rod body.

In the implementation process, the rod body is favorable for driving the pressing plate to move, and the first spring can limit the position of the adjusting plate moving downwards.

In a specific embodiment, the valve core is provided with a water outlet groove, the valve core is designed to be of a cylindrical structure, and a water outlet is formed above the valve core.

In the implementation process, the water outlet groove is arranged, so that the water inlet pipe is communicated with the water outlet pipe when the water outlet groove is communicated with the water outlet pipe.

In a specific embodiment, a water supply pipe is communicated with the water inlet pipe, and the water supply pipe is connected between the water inlet pipe and the valve core.

In the implementation process, the water inlet pipe is communicated with the valve core through the water supply pipe, so that the balance inside the water supply pipe can be better controlled, and the equipment can work better.

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 self-operated differential pressure control valve capable of adjusting sealing pressing force of a valve core according to an embodiment of the present application;

FIG. 2 is a schematic structural diagram of a housing assembly provided in an embodiment of the present application;

FIG. 3 is a schematic diagram of a pressing force adjustment assembly provided by an embodiment of the present application;

FIG. 4 is a schematic view of a valve core structure provided in an embodiment of the present application;

FIG. 5 is a schematic view of a fastener structure provided in an embodiment of the present application;

fig. 6 is a schematic structural diagram of a sealing member according to an embodiment of the present disclosure.

In the figure: 100-a housing assembly; 110-a valve body; 120-water inlet pipe; 130-connecting tube; 140-a seal; 142-a sealing ring; 144-a gasket; 150-a filter screen; 160-a fastener; 162-a first retaining ring; 164-a second retaining ring; 170-water outlet pipe; 180-connecting disc; 190-a mounting seat; 192-a base; 194-a connecting head; 200-a pressing force adjusting assembly; 210-a threaded rod; 220-adjusting plate; 230-briquetting; 240-buffer connecting rod; 242-rod body; 244-a first spring; 250-a pressing plate; 260-a second spring; 270-active block; 280-valve core; 282-water outlet groove; 290-water supply pipe.

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. 1-6, the present application provides a technical solution: a self-operated differential pressure control valve capable of adjusting sealing pressing force of a valve core comprises a shell assembly 100 and a pressing force adjusting assembly 200.

Referring to fig. 1 to 6, the housing assembly 100 includes a valve body 110, a water inlet pipe 120, a connection pipe 130, a sealing member 140, a fixing member 160, a water outlet pipe 170, and a mounting seat 190, the water inlet pipe 120 is connected to one side of the valve body 110, the connection pipe 130 is in threaded connection with the water inlet pipe 120, the sealing member 140 is disposed between the water inlet pipe 120 and the connection pipe 130, the sealing member 140 includes a sealing ring 142 and a sealing gasket 144, the sealing ring 142 is disposed in the water inlet pipe 120, and the sealing gasket 144 is disposed between the water inlet pipe 120 and the connection pipe 130. The sealing of the connection between the inlet pipe 120 and the connection pipe 130 is facilitated by the provision of the sealing ring 142 and the sealing gasket 144. The inside of the water inlet pipe 120 is connected with a filter screen 150, and the filter screen 150 is disposed near one end of the water inlet pipe 120. The filter screen 150 is provided to facilitate the filtering of impurities in the water, and prevent the water inlet pipe 120 and the valve body 110 from being clogged. The diameter of the filter screen 150 is the same as the inner diameter of the water inlet pipe 120, and the diameter of the filter screen 150 is smaller than the diameter of the sealing ring 142. The fixing member 160 is fixed on the outer surface of the connection pipe 130, the connection pipe 130 is communicated with the water inlet pipe 120, and the diameter of the filter screen 150 is the same as the inner diameter of the water inlet pipe 120, which is beneficial to improving the filtering effect of impurities. The fixing member 160 is in contact with the sealing member 140, the fixing member 160 includes a first fixing ring 162 and a second fixing ring 164, the first fixing ring 162 and the second fixing ring 164 are fixed to the outer surface of the connection pipe 130, respectively, and the packing 144 is disposed between the first fixing ring 162, the second fixing ring 164, and the water inlet pipe 120. The first fixing ring 162 and the second fixing ring 164 are provided to fix the position of the sealing gasket 144, thereby further improving the sealing property between the water inlet pipe 120 and the connection pipe 130. The water outlet pipe 170 is connected to the other side of the valve body 110, one end of the water inlet pipe 120 and one end of the water outlet pipe 170 are connected with a connecting disc 180, and a mounting hole is formed in the connecting disc 180. And is connected with an external pipe through the connection plate 180 so that the inlet pipe 120 and the outlet pipe 170 communicate with the external pipe. The mounting seat 190 is connected below the valve body 110, the mounting seat 190 comprises a base 192 and a connecting head 194, the base 192 is connected below the valve body 110, and the connecting head 194 is fixed below the base 192. The base 192 and the coupling head 194 are provided to facilitate securing the bottom of the valve body 110.

Referring to fig. 1 to 6, the pressing force adjusting assembly 200 includes a threaded rod 210, an adjusting plate 220, a pressing block 230, a buffer connecting rod 240, a pressing plate 250, a second spring 260, a movable block 270, and a valve core 280, the threaded rod 210 is fixed above the valve body 110, the adjusting plate 220 is sleeved outside the threaded rod 210, the pressing block 230 is screwed on the threaded rod 210, the pressing block 230 is in contact connection with the adjusting plate 220, the buffer connecting rod 240 is connected to both ends of the lower portion of the adjusting plate 220, the buffer connecting rod 240 is slidably connected with the valve body 110, the buffer connecting rod 240 includes a rod body 242 and a first spring 244, the rod body 242 is connected to the lower portion of the adjusting plate 220, the rod body 242 is slidably connected with the valve body 110, and the first spring 244 is wound on the rod body 242. The rod 242 is beneficial to moving the pressing plate 250, and the first spring 244 can limit the position of the adjusting plate 220 moving downwards. The pressure plate 250 is arranged inside the valve body 110, the pressure plate 250 is connected with the buffer connecting rod 240, the second spring 260 is connected below the pressure plate 250, the movable block 270 is movably connected below the second spring 260, the valve core 280 is movably connected below the movable block 270, and the movable block 270 and the valve core 280 are arranged between the water inlet pipe 120 and the water outlet pipe 170. The valve core 280 is provided with a water outlet groove 282, the valve core 280 is designed into a cylindrical structure, and a water outlet is arranged above the valve core 280. By providing the water outlet tank 282, the water inlet pipe 120 can be communicated with the water outlet pipe 170 when the water outlet tank 282 is communicated with the water outlet pipe 170. The water inlet pipe 120 is communicated with a water supply pipe 290, and the water supply pipe 290 is connected between the water inlet pipe 120 and the valve core 280. The inlet pipe 120 is communicated with the valve core 280 through the water supply pipe 290, so that the internal balance can be better controlled, and the equipment can work better.

The working principle of the self-operated differential pressure control valve capable of adjusting the sealing pressing force of the valve core is as follows: when the water supply device is used, the connecting disc 180 is connected with an external pipeline, so that the water inlet pipe 120 and the water outlet pipe 170 are communicated with the external pipeline, the base 192 and the connector 194 are used for installing and fixing the bottom of the valve body 110, after the installation is finished, the adjusting plate 220 is pressed down by rotating the pressing block 230, so that the rod body 242 and the pressing plate 250 are driven to move in the valve body 110, the position of the second spring 260 can be adjusted, the positions between the movable block 270 and the valve core 280 and between the water inlet pipe 120 and the water outlet pipe 170 can be changed, so that the pressure of the valve body 110 within a certain range can be adjusted, then a water source is connected, water flows into the water supply pipe 290 from the water inlet pipe 120, then the valve core 280 is jacked upwards by the water in the water supply pipe 290, so that the movable block 270 is driven to move upwards until the water outlet groove 282 is communicated with the water outlet pipe 170, so that the water inlet pipe 120 is communicated with the water outlet pipe 170, through adjusting the position of briquetting 230 on threaded rod 210, thereby can change the compression state of second spring 260, thereby can change pressure differential's adjustment range, it is favorable to filtering the impurity of aquatic to set up filter screen 150, prevent to lead to the fact the jam to inlet tube 120 and valve body 110, through threaded connection between inlet tube 120 and the connecting pipe 130, thereby be convenient for dismantle connecting pipe 130, be favorable to fixing the position of sealed pad 144 through setting up first solid fixed ring 162 and the solid fixed ring 164 of second, thereby be favorable to further improving the leakproofness between inlet tube 120 and the connecting pipe 130. The problem of current differential pressure control valve, the commonality is poor, can only open in fixed pressure range, and the scope of differential pressure adjustment is less, if need change the pressure range after installing in the pipeline and make the control valve open, then need to change new control valve again, the operation is not only wasted time and energy but also waste resources more like this.

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 capable of adjusting the sealing pressing force of a valve core is characterized by comprising

The water inlet pipe sealing device comprises a shell assembly (100), wherein the shell assembly (100) comprises a valve body (110), a water inlet pipe (120), a connecting pipe (130), a sealing element (140), a fixing element (160), a water outlet pipe (170) and a mounting seat (190), the water inlet pipe (120) is connected to one side of the valve body (110), the connecting pipe (130) is in threaded connection with the water inlet pipe (120), the sealing element (140) is arranged between the water inlet pipe (120) and the connecting pipe (130), the fixing element (160) is fixed to the outer surface of the connecting pipe (130), the fixing element (160) is in contact connection with the sealing element (140), the water outlet pipe (170) is connected to the other side of the valve body (110), and the mounting seat (190) is connected to the lower side of the valve body (110);

the pressing force adjusting assembly (200) comprises a threaded rod (210), an adjusting plate (220), a pressing block (230), a buffer connecting rod (240), a pressing plate (250), a second spring (260), a movable block (270) and a valve core (280), the threaded rod (210) is fixed above the valve body (110), the adjusting plate (220) is sleeved outside the threaded rod (210), the pressing block (230) is in threaded connection with the threaded rod (210), the pressing block (230) is in contact connection with the adjusting plate (220), the buffer connecting rod (240) is connected to two ends below the adjusting plate (220), the buffer connecting rod (240) is in sliding connection with the valve body (110), the pressing plate (250) is arranged inside the valve body (110), and the pressing plate (250) is connected with the buffer connecting rod (240), the second spring (260) is connected below the pressure plate (250), the movable block (270) is movably connected below the second spring (260), the valve core (280) is movably connected below the movable block (270), and the movable block (270) and the valve core (280) are arranged between the water inlet pipe (120) and the water outlet pipe (170).

2. The self-operated differential pressure control valve capable of adjusting the sealing pressing force of the valve element according to claim 1, wherein the sealing member (140) comprises a sealing ring (142) and a sealing gasket (144), the sealing ring (142) is arranged in the water inlet pipe (120), and the sealing gasket (144) is arranged between the water inlet pipe (120) and the connecting pipe (130).

3. The self-operated differential pressure control valve capable of adjusting the sealing pressing force of the valve core according to claim 2, characterized in that a filter screen (150) is connected inside the water inlet pipe (120), and the filter screen (150) is arranged near one end of the water inlet pipe (120).

4. The self-operated differential pressure control valve capable of adjusting the sealing pressing force of the valve core as claimed in claim 3, wherein the diameter of the filter screen (150) is the same as the inner diameter of the water inlet pipe (120), and the diameter of the filter screen (150) is smaller than the diameter of the sealing ring (142).

5. The self-operated differential pressure control valve capable of adjusting the sealing pressing force of the valve element according to claim 2, wherein the fixing member (160) comprises a first fixing ring (162) and a second fixing ring (164), the first fixing ring (162) and the second fixing ring (164) are respectively fixed on the outer surface of the connection pipe (130), and the sealing gasket (144) is disposed between the first fixing ring (162), the second fixing ring (164) and the water inlet pipe (120).

6. The self-operated differential pressure control valve capable of adjusting the sealing pressing force of the valve core according to claim 1, wherein one end of the water inlet pipe (120) and one end of the water outlet pipe (170) are connected with a connecting disc (180), and the connecting disc (180) is provided with a mounting hole.

7. The self-operated differential pressure control valve capable of adjusting the sealing pressing force of the valve element according to claim 1, wherein the mounting seat (190) comprises a base (192) and a connecting head (194), the base (192) is connected below the valve body (110), and the connecting head (194) is fixed below the base (192).

8. The self-operated differential pressure control valve capable of adjusting the sealing pressing force of the valve element according to claim 1, wherein the buffer connecting rod (240) comprises a rod body (242) and a first spring (244), the rod body (242) is connected below the adjusting plate (220), the rod body (242) is slidably connected with the valve body (110), and the first spring (244) is wound on the rod body (242).

9. The self-operated differential pressure control valve capable of adjusting the sealing pressing force of the valve core according to claim 1, wherein the valve core (280) is provided with a water outlet groove (282), the valve core (280) is designed in a cylindrical structure, and a water outlet is arranged above the valve core (280).

10. The self-operated differential pressure control valve capable of adjusting the sealing pressing force of the valve core as claimed in claim 1, wherein a water supply pipe (290) is connected to the water inlet pipe (120), and the water supply pipe (290) is connected between the water inlet pipe (120) and the valve core (280).