CN217502660U - Diaphragm and solenoid valve - Google Patents

Abstract

The application provides a diaphragm and solenoid valve. The diaphragm includes a first side, a second side, and a balancing portion provided with a balancing hole. The balancing portion includes a first operating state and a second operating state. The balance part allows the fluid on the first side to enter the second side through the balance hole in the first working state. The balance part blocks the flow of the fluid on the two sides when in the second working state. The solenoid valve includes valve gap, valve body, magnetism control assembly and above-mentioned diaphragm of inhaling. The valve cover is connected with the valve body in an abutting mode. The valve gap is equipped with first cavity, and the control assembly activity of magnetism is set up in first cavity. The valve body is provided with a baffle plate, a second chamber and a third chamber which are separated by the baffle plate. The diaphragm is arranged between the valve cover and the valve body and is connected with the magnetic suction control component. The balance part is arranged on the diaphragm, and the diaphragm is applied to the electromagnetic valve, so that the electromagnetic valve is expanded from the original one-way circulation and cut-off function to the two-way circulation and cut-off function, the application range is expanded, the usability of the product is improved, and the cost is low.

Description

Diaphragm and solenoid valve

Technical Field

The application relates to the technical field of electromagnetic valves, in particular to a diaphragm and an electromagnetic valve.

Background

Diaphragm-type solenoid valves are widely used because of their advantages of light weight, small size, and low price. When the diaphragm type solenoid valve is powered on, the electromagnetic coil generates electromagnetic force, the movable iron core is attracted by the electromagnetic force, overcomes the resistance of the spring and the dead weight to rise, the pressure is relieved through the pilot valve, the acting force above the diaphragm is reduced and is lower than the force borne by the lower part of the diaphragm, the diaphragm is opened under the action of differential force, the main valve forms a passage, and the solenoid valve is in an opening state. When the power supply of the electromagnetic valve is cut off, the movable iron core closes the auxiliary valve under the action of spring force, the diaphragm closes the main valve port under the action of downward pressure difference, and the electromagnetic valve is in a closed state.

The existing diaphragm type electromagnetic valve can only be applied to a pipeline with one-way circulation, and the requirement of positive pressure difference operation that the inlet pressure is greater than the outlet pressure needs to be met when the diaphragm type electromagnetic valve is used. When the diaphragm type electromagnetic valve is used in a pipeline with bidirectional circulation or negative pressure difference, the use requirement can be met by matching a one-way valve or using a pair of diaphragm type electromagnetic valves, and the cost burden is greatly increased.

SUMMERY OF THE UTILITY MODEL

The application aims to provide a diaphragm and an electromagnetic valve, and usability of products is improved.

One aspect of the present application provides a diaphragm comprising: the device comprises a first side, a second side and a balancing part, wherein the balancing part is provided with a balancing hole;

the balance part comprises a first working state and a second working state; the balance part allows the fluid on the first side to enter the second side through the balance hole when in the first working state; the balance unit blocks communication between the fluid on the first side and the fluid on the second side in the second operating state. So set up for the diaphragm realizes the one-way circulation function, and simple structure easily realizes.

Further, the balancing part comprises a rotating component which is rotatably arranged at the balancing hole; the rotation position of the rotating assembly comprises a first position and a second position; when the rotating assembly is located at the first position, the balancing part is in the first working state; when the rotating assembly is located at the second position, the balancing part is in the second working state. So set up, simple structure is with low costs.

Furthermore, the balance part comprises a movable chamber arranged at the balance hole and a movable part movably arranged in the movable chamber; the movable position of the movable piece comprises a third position and a fourth position; when the movable piece is located at the third position, the balance part is in the first working state; when the movable piece is located at the fourth position, the balance part is in the second working state. By the arrangement, the balance part has better sealing property in the second working state.

Further, the movable chamber is provided with an opening; when the movable piece is positioned at the third position, the opening is communicated with the balance hole; when the movable piece is located at the fourth position, the opening and the balance hole are blocked. The opening is arranged, so that the flow performance of the balance part is convenient to adjust, and the application range of the diaphragm is expanded.

Further, the balance part also comprises a base part and a shielding part; when the shielding part is separated from the base part, the balancing part is in the first working state; when the shielding part is attached to the base part, the balance part is in the second working state. So set up, the structure is retrencied, easy installation.

Further, the diaphragm includes a central support portion, and the shielding portion is connected to the central support portion. By the arrangement, the original structure of the diaphragm is slightly changed, and the cost is low.

Another aspect of the present application also provides a solenoid valve including: the valve cover, the valve body, the magnetic control assembly and the diaphragm are arranged on the valve body;

the valve cover is abutted with the valve body;

the valve cover is provided with a first cavity, and the magnetic attraction control component is movably arranged in the first cavity;

the valve body is provided with a baffle plate, a second chamber and a third chamber, and the second chamber and the third chamber are separated by the baffle plate; and

the diaphragm is arranged between the valve cover and the valve body and is connected with the magnetic attraction control component. By the arrangement, the electromagnetic valve realizes the functions of bidirectional circulation and cut-off.

Further, the diaphragm includes at least two of the balance portions. By increasing the number of the balancing portions, the efficiency of the fluid passing through the solenoid valve can be improved.

Further, the solenoid valve still includes stop device. Preventing deformation of the diaphragm.

Further, stop device locates control assembly is inhaled to magnetism. By the arrangement, the original structure of the electromagnetic valve is slightly changed, and the cost is low.

This application is through setting up balanced portion on the diaphragm for the function of one-way circulation has been realized to the diaphragm. The diaphragm is applied to the electromagnetic valve, so that the original one-way circulation and cut-off function of the electromagnetic valve is expanded into the two-way circulation and cut-off function, the application range is expanded, and the usability of the product is greatly improved. And the device can be applied to a pipeline with bidirectional circulation or negative pressure difference without being matched with other components, so that the cost is saved.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.

Drawings

FIG. 1 is a schematic structural diagram of one embodiment of a diaphragm of the present application;

FIG. 2 is a schematic structural view of another embodiment of a diaphragm of the present application;

FIG. 3 is a schematic structural view of a further embodiment of a diaphragm according to the present application;

FIG. 4 is a schematic structural view of yet another embodiment of a diaphragm according to the present application;

FIG. 5 is a schematic view of an embodiment of the solenoid valve of the present application in the de-energized state;

fig. 6 is a schematic structural view showing the solenoid valve shown in fig. 5 in an energized state.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of devices consistent with certain aspects of the present application, as detailed in the appended claims.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. Unless otherwise defined, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this application belongs. The use of "first," "second," and similar terms in the description and in the claims does not indicate any order, quantity, or importance, but rather is used to distinguish one element from another. Also, the use of the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one. "plurality" or "a number" means two or more. Unless otherwise indicated, "front", "rear", "lower" and/or "upper" and the like are for convenience of description and are not limited to one position or one spatial orientation. The word "comprising" or "comprises", and the like, means that the element or item listed as preceding "comprising" or "includes" covers the element or item listed as following "comprising" or "includes" and its equivalents, and does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. As used in this specification and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

The present application provides a diaphragm, comprising: first side, second side and balancing part, wherein, balancing part is equipped with balanced hole. The balancing portion includes a first operating state and a second operating state. The balance part allows the fluid on the first side to enter the second side through the balance hole in the first working state. The balance portion blocks communication between the fluid on the first side and the fluid on the second side in the second operation state. The present application further provides a solenoid valve, comprising: valve gap, valve body, magnetism control assembly and above-mentioned diaphragm of inhaling. The valve cover is connected with the valve body in an abutting mode. The valve gap is equipped with first cavity, and the control assembly activity of magnetism is set up in first cavity. The valve body is provided with a baffle, a second chamber and a third chamber, and the second chamber and the third chamber are separated by the baffle. The diaphragm is arranged between the valve cover and the valve body and is connected with the magnetic suction control component. The balance part is arranged on the diaphragm, so that the diaphragm realizes the function of one-way circulation. The diaphragm is used for improving the electromagnetic valve, so that the electromagnetic valve is expanded from the original one-way circulation and cutting-off function to the two-way circulation and cutting-off function, the application range is expanded, other parts are not required to be matched, the diaphragm can be applied to the two-way circulation or negative pressure difference pipeline, and the cost is saved.

The solenoid valve of the present application will be described in detail below with reference to the accompanying drawings. The features of the following examples and embodiments may be combined with each other without conflict.

The embodiment of the present application provides a diaphragm 100, including: a first side 101, a second side 102, and a balance 110. The balance portion 110 is used to make the diaphragm 100 realize one-way circulation. The balancing part 110 is provided with a balancing hole 111. The balance hole 111 is used for fluid communication. The balancing part 110 includes a first operation state and a second operation state. The balancing portion 110 allows fluid from the first side 101 to enter the second side 102 through the balancing hole 111 in the first operating state. The balance part 110 blocks the fluid communication between the first side 101 and the second side 102 in the second operation state. It can be understood that when the fluid flows from the first side 101 to the second side 102, the balance portion 110 is opened, and the fluid can smoothly pass through the balance hole 111; when the fluid flows from the second side 102 to the first side 101, the balancer 110 is closed, and the fluid cannot flow. With the arrangement, the one-way circulation function of the diaphragm is realized with a simple structure, and the cost is low.

Referring to fig. 1, in some embodiments, the balancing part 110 includes a rotating assembly 112 rotatably disposed at the balancing hole 111. The rotational position of the rotating assembly 112 includes a first position (shown in solid lines) and a second position (shown in phantom lines). When the rotating assembly 112 is located at the first position, the balance part 110 is in the first working state. When the rotating assembly 112 is located at the second position, the balance part 110 is in the second working state. The rotation of the rotating assembly 112 switches the operating state of the balancing unit 110, and the simple structure can achieve the function of fluid connection and disconnection. In the embodiment of fig. 1, the rotating assembly 112 is provided as a flap hinged at one end and free at the other end. When fluid flows from the first side 101 to the second side 102, the fluid pushes the rotating assembly 112 open, and the fluid on the first side 101 can flow from the balancing hole 111 to the second side 102, so that the fluid can circulate. When fluid flows from the second side 102 to the first side 101, the fluid pressure acts on the rotating assembly 112 to keep it closed, and fluid cannot flow.

Referring to fig. 2 and 3, in some embodiments, the balancing part 110 includes a movable chamber 113 disposed at the balancing hole 111 and a movable member 114 movably disposed in the movable chamber 113. The active position of moveable member 114 includes a third position (shown in solid lines) and a fourth position (shown in phantom lines). When the movable element 114 is located at the third position, the balance portion 110 is in the first operating state. When the movable element 114 is located at the fourth position, the balance portion 110 is in the second operating state. The operating state of the balance portion 110 is switched by changing the position of the movable element 114 through the displacement of the movable element 114 in the movable chamber 113. With such an arrangement, when the balance portion 110 is in the second operating state, the movable element 114 can better seal the balance hole 111, so that the diaphragm 100 has better sealing performance when the pipeline is disconnected.

The movable chamber 113 is provided with an opening 115. The opening 115 is adapted to communicate with the balance hole 111 for passage of fluid therethrough. When the movable member 114 is in the third position, the opening 115 communicates with the balance hole 111. When the movable member 114 is in the fourth position, the opening 115 is blocked from the balance hole 111. By arranging the opening 115 and adjusting the size and the position of the opening, the flow rate of the balance part 110 in the first working state can be changed, so that the diaphragm 100 can meet the design requirements of different pipelines, and the application range is expanded.

In some embodiments, as shown in fig. 2, the movable chamber 113 is configured as an inverted cone, and the movable member 114 is configured as a sphere, so that the sensitivity of the movable member 114 is high, the sensing of the fluid by the balance portion 110 is improved, and the balance portion 110 can be switched between the first and second operating states more accurately. In other embodiments, as shown in FIG. 3, the movable chamber 113 is configured as a cylinder and the movable member 114 is configured as a baffle, which is simple and inexpensive to manufacture. In other embodiments, movable chamber 113 and movable member 114 may be provided in other configurations, which are not limited in this application. The position of the movable member can be changed by providing an elastic member 116 such as a spring.

When fluid flows from first side 101 to second side 102, the fluid pushes moveable member 114 open against the pressure of elastic element 116, and the fluid in first side 101 can flow from balancing hole 111 to second side 102, so as to achieve fluid communication. When fluid flows from second side 102 to first side 101, the pressure of the fluid and the pressure of elastic element 116 jointly act on movable element 114, so that movable element 114 seals balancing hole 111 and the fluid cannot flow.

Referring to fig. 4, in some embodiments, the balancing portion 110 further includes a base portion 117 and a blocking portion 118. When the shielding portion 118 and the base portion 117 are separated, the balance portion 110 is in the first operating state. When the shielding portion is attached to the base portion 117, the balance portion 110 is in the second operating state. By such arrangement, the structure of the balance part 110 is more simplified, and the balance part is convenient to install in a smaller space. In the embodiment of fig. 4, the shielding portion 118 is made of an elastic material, and when the fluid flows from the first side 101 to the second side 102, the shielding portion 118 is deformed by the impact of the fluid, and the shielding portion 118 is separated from the base portion 117. The fluid on the first side 101 can flow from the balancing hole 111 to the second side 102, and the fluid communication is realized. When the fluid flows from the second side 102 to the first side 101, the pressure of the fluid acts on the shielding portion 118, and the shielding portion 118 seals the equilibrium hole 111, so that the fluid cannot flow therethrough.

Further, the diaphragm 100 includes a center support 119, and the shielding portion 118 is connected to the center support 119. With such an arrangement, the original structure of the diaphragm 100 is utilized to fix the shielding portion 118, and the original structure of the diaphragm 100 does not need to be greatly changed, thereby reducing the cost.

The present application also provides a solenoid valve 200, shown with reference to fig. 5 and 6, comprising: a valve cover 210, a valve body 220, a magnetic attraction control component 230 and the diaphragm 100. Specifically, the valve body 220 and the bonnet 210 abut, both providing support for other components. The valve cover 210 is provided with a first chamber 211. The valve body 220 is provided with a baffle 221, a second chamber 222 and a third chamber 223. The second chamber 222 and the third chamber 223 are separated by a baffle 221. The first chamber 211, the second chamber 222, and the third chamber 223 provide a space for the circulation and the stay of the fluid. The magnetic attraction control component 230 is movably disposed in the first chamber 211. The diaphragm 100 is disposed between the bonnet 210 and the valve body 220, is sandwiched between the bonnet 210 and the valve body 220, and is connected to the magnetically attractive control assembly 230. The balance part 110 of the diaphragm 100 is disposed such that the fluid in the second chamber 222 can flow into the first chamber 211 through the balance holes 111, and the fluid in the third chamber 223 can flow into the first chamber 211 through the balance holes 111. Fluid in the first chamber 211 cannot enter the second chamber 222 and the third chamber 223 through the balance holes 111. By the arrangement, the electromagnetic valve 200 is improved from the original one-way direction from the second chamber 222 to the first chamber 211 to the two-way direction from the second chamber 222 to the first chamber 211 and from the third chamber 223 to the first chamber 211, the structure is simple, the cost is low, and the function improvement is obvious.

In practical applications, when the solenoid valve 200 is de-energized, as shown in fig. 5, the baffle 221 and the diaphragm 100 abut to separate the second chamber 222 from the third chamber 223. When the flow direction of the fluid is the second chamber 222 side to the third chamber 223 side, the fluid enters the first chamber 211 through the balance part 110 of the second chamber 222 side, but cannot enter the third chamber 223 from the first chamber 211 through the balance part 110 of the third chamber 223 side. The fluid stays in the first chamber 211, and generates pressure on the diaphragm 100, which strengthens the contact between the baffle 221 and the diaphragm 100, so that the separation between the second chamber 222 and the third chamber 223 is better, and the pipeline is completely cut off. When the fluid flows in the direction from the third chamber 223 side to the second chamber 222 side, the fluid enters the first chamber 211 through the balance part 110 on the third chamber 223 side, but cannot enter the second chamber 222 from the first chamber 211 through the balance part 110 on the second chamber 222 side, the fluid is blocked in the first chamber 211 and the third chamber 223, and the solenoid valve 200 functions as the same shut-off line. Therefore, the electromagnetic valve is expanded from the original one-way circulation and cut-off function to the two-way circulation and cut-off function, the application range is expanded, and the usability of the product is greatly improved. And the device can be applied to a pipeline with bidirectional circulation or negative pressure difference without being matched with other components, so that the cost is saved.

When the solenoid valve 200 is energized, as shown in fig. 6, the magnetic control assembly 230 moves away from the diaphragm 100, so that the diaphragm 100 and the baffle 221 are separated, the second chamber 222 and the third chamber 223 are communicated, and the fluid can directly flow into the third chamber 223 from the second chamber 222 or directly flow into the second chamber 222 from the third chamber 223, and the pipeline is open.

In some embodiments, the diaphragm 100 in the solenoid valve 200 includes at least two balance parts 110, and by changing the number of the balance parts 110, the passing rate of the fluid and the airtightness of the solenoid valve 200 can be controlled, and the applicable range can be expanded. The more the balance parts 110, the faster the passing rate of the fluid, and the less the balance parts 110, the better the airtightness of the solenoid valve 200. In this embodiment, the diaphragm 100 has two balance portions 110, and has a simple structure and low cost.

In some embodiments, referring to FIG. 1, the solenoid valve 200 further comprises a stop 240. The limiting device 240 is used for preventing the diaphragm 100 from continuously deforming when the diaphragm 100 deforms to a preset limit value, preventing the diaphragm 100 from excessively losing efficacy due to deformation, and ensuring the normal operation of the electromagnetic valve 200. The limiting device 240 can be a stainless steel baffle plate, so that the device is rust-proof and corrosion-resistant and low in cost. The material and shape of the limiting means 240 are not particularly limited in the present application.

In some embodiments, the position limiting device 240 is disposed on the magnetic attraction control component 230, so that the structure of the solenoid valve 200 does not need to be changed greatly, and the solenoid valve is low in cost and easy to implement. In other embodiments, the limiting device 240 may also be disposed on the valve cap 210, so that the limiting effect is more stable.

The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the scope of protection of the present application.

Claims (10)

1. A diaphragm, comprising: the device comprises a first side, a second side and a balancing part, wherein the balancing part is provided with a balancing hole;

the balance part comprises a first working state and a second working state; the balance part allows the fluid on the first side to enter the second side through the balance hole when in the first working state; the balance unit blocks communication between the fluid on the first side and the fluid on the second side in the second operating state.

2. The diaphragm of claim 1, wherein said balance portion comprises a rotating assembly rotatably disposed at said balance hole; the rotation position of the rotating assembly comprises a first position and a second position; when the rotating assembly is located at the first position, the balancing part is in the first working state; when the rotating assembly is located at the second position, the balancing part is in the second working state.

3. The diaphragm of claim 1, wherein said balance portion includes a movable chamber disposed at said balance aperture and a movable member movably disposed within said movable chamber; the movable position of the movable piece comprises a third position and a fourth position; when the movable piece is located at the third position, the balance part is in the first working state; when the movable piece is located at the fourth position, the balance part is in the second working state.

4. A diaphragm according to claim 3, wherein said movable chamber is provided with an opening; when the movable piece is positioned at the third position, the opening is communicated with the balance hole; when the movable piece is located at the fourth position, the opening is blocked from the balance hole.

5. The diaphragm of claim 1, wherein said balance portion further comprises a base portion and a curtain portion; when the shielding part is separated from the base part, the balancing part is in the first working state; when the shielding part is attached to the base part, the balance part is in the second working state.

6. The diaphragm of claim 5, wherein said diaphragm includes a central support portion, said curtain portion being connected to said central support portion.

7. A solenoid valve, comprising: a valve cover, a valve body, a magnetic attraction control component and a diaphragm as claimed in any one of claims 1 to 6;

the valve cover is abutted with the valve body;

the valve cover is provided with a first cavity, and the magnetic attraction control component is movably arranged in the first cavity;

the valve body is provided with a baffle plate, a second chamber and a third chamber, and the second chamber and the third chamber are separated by the baffle plate; and

the diaphragm is arranged between the valve cover and the valve body and is connected with the magnetic attraction control component.

8. The solenoid valve of claim 7 wherein said diaphragm includes at least two of said balance portions.

9. The solenoid valve according to claim 7 or 8, characterized in that it further comprises a stop means.

10. The solenoid valve of claim 9, wherein the limiting device is disposed on the magnetic control assembly.

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