Diaphragm valve

Abstract

The invention discloses a diaphragm valve, and relates to the field of valves, a valve seat defines a first flow channel and a second flow channel, the second flow channel is provided with a first inlet, and the first inlet is communicated with the first flow channel; the diaphragm is arranged on the valve seat and corresponds to the first inlet; the first magnetic part is arranged on the valve seat, the second magnetic part is arranged on the diaphragm, the first magnetic part and the second magnetic part are correspondingly arranged, and magnetic force can be generated between the first magnetic part and the second magnetic part to drive the diaphragm so as to adjust the opening degree of the first inlet. Therefore, the diaphragm corresponds to the first inlet, the first magnetic part is arranged on the valve seat, and the second magnetic part is arranged on the diaphragm, so that the diaphragm can be driven to act through magnetic force generated between the first magnetic part and the second magnetic part, and the opening degree of the first inlet is adjusted; therefore, the diaphragm valve can respond quickly, the pressure and the flow of fluid in the diaphragm valve can be adjusted, the use reliability of the diaphragm valve can be improved, the diaphragm valve is simple in structure, and the production cost and the maintenance cost of the diaphragm valve can be reduced.

Description

Technical Field

[0001] The invention relates to the field of valves, and in particular to a diaphragm valve. Background Art

[0002] In the related art, the structural design of the diaphragm valve is unreasonable, resulting in a complex structure of the diaphragm valve, making the production and manufacturing of the diaphragm valve difficult and the maintenance cost high. In addition, the diaphragm valve has a slow response speed and low pressure and flow regulation accuracy for the fluid in the pipeline, which seriously affects the reliability of the valve during use. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, one object of the present invention is to provide a diaphragm valve, which has a fast response speed and can accurately adjust the pressure and flow of the fluid in the pipeline.

[0004] The diaphragm valve according to the present invention includes: a valve seat, the valve seat defines a first flow channel and a second flow channel, the second flow channel has a first inlet, and the first inlet is connected to the first flow channel; a diaphragm, the diaphragm is arranged on the valve seat and corresponds to the first inlet; a first magnetic part and a second magnetic part, the first magnetic part is arranged on the valve seat, and the second magnetic part is arranged on the diaphragm, along a first direction, the first magnetic part and the second magnetic part are arranged correspondingly, and a magnetic force can be generated between the first magnetic part and the second magnetic part to drive the diaphragm to move, so as to adjust the opening of the first inlet.

[0005] According to the diaphragm valve of the present invention, by making the diaphragm correspond to the first inlet, and the first magnetic component is arranged on the valve seat, and the second magnetic component is arranged on the diaphragm, the magnetic force generated between the first magnetic component and the second magnetic component can be used to drive the diaphragm to move, so as to adjust the opening of the first inlet, so that the diaphragm valve can respond quickly and adjust the pressure and flow rate of the fluid in the diaphragm valve, which is beneficial to improving the reliability of the diaphragm valve. In addition, the diaphragm valve has a simple structure and can reduce the production cost and maintenance cost of the diaphragm valve.

[0006] In some examples of the present invention, the valve seat includes: a valve body and a valve cover, the valve body and the valve cover are detachably connected, the diaphragm has a first part, a second part and a third part, the second part is connected between the first part and the third part, the first part is clamped between the valve body and the valve cover, the thickness of the second part is smaller than the thickness of the first part and the third part, and the third part can move toward or away from the first inlet under the action of magnetic force to adjust the opening of the first inlet.

[0007] In some examples of the present invention, along the first direction and from the direction where the third portion is close to the first inlet to the direction away from the first inlet, the cross-sectional area of ​​one end of the third portion toward the first inlet gradually increases.

[0008] In some examples of the present invention, the valve seat includes: a valve body, the valve body includes a valve body and a partition, the partition is connected to the valve body and defines the first inlet together with the valve body.

[0009] In some examples of the present invention, the diaphragm valve further includes: a magnet-blocking body, which is disposed on the diaphragm and defines a first mounting groove open toward the first magnetic component, and at least a portion of the second magnetic component is disposed in the first mounting groove; the first mounting groove is located inside the diaphragm or outside the diaphragm.

[0010] In some examples of the present invention, the diaphragm and the valve seat together define a static water chamber, and the diaphragm has a communication hole, and the communication hole connects the static water chamber and the first flow channel.

[0011] In some examples of the present invention, the diaphragm valve further includes: a guide member, the diaphragm has a first guide through hole, the second magnetic member has a second guide through hole corresponding to the first guide through hole, and the guide member is arranged on the valve seat and passes through the first guide through hole and the second guide through hole.

[0012] In some examples of the present invention, the first magnetic member is configured as a permanent magnet or an electromagnet, and the second magnetic member is configured as the permanent magnet or the electromagnet.

[0013] In some examples of the present invention, the first magnetic member is configured as one of the electromagnet or the permanent magnet, and the second magnetic member is configured as the other of the electromagnet or the permanent magnet. The opening of the first inlet is adjusted by changing the direction and / or current intensity of the current passed through the electromagnet to change the direction and / or intensity of the magnetic force between the first magnetic member and the second magnetic member.

[0014] In some examples of the present invention, the first magnetic member and the second magnetic member are both configured as the electromagnet, and the direction of the current passed through the first magnetic member or the second magnetic member is changed to change the direction of the magnetic force between the first magnetic member and the second magnetic member, and the intensity of the current passed through the first magnetic member and / or the second magnetic member is changed to change the intensity of the magnetic force between the first magnetic member and the second magnetic member to adjust the opening of the first inlet.

[0015] In some examples of the present invention, along the first direction, the two opposite ends of the first magnetic member are respectively an N pole and an S pole, and the two opposite ends of the second magnetic member are respectively an N pole and an S pole; or along a direction perpendicular to the first direction, the two opposite ends of the first magnetic member are respectively an N pole and an S pole, and the two opposite ends of the second magnetic member are respectively an N pole and an S pole.

[0016] In some examples of the present invention, the first magnetic member and the second magnetic member are both constructed as the permanent magnet, and the first magnetic member and the second magnetic member both have two opposite ends, one end of the first magnetic member is an N pole, and the other end of the first magnetic member is an S pole, one end of the second magnetic member is an N pole, and the other end of the second magnetic member is an S pole, and the first magnetic member can rotate relative to the valve seat to change the direction and / or strength of the magnetic force between the first magnetic member and the second magnetic member to adjust the opening of the first inlet.

[0017] In some examples of the present invention, the diaphragm valve further includes: a connecting member, which is connected to the first magnetic member; the first magnetic member can be rotated by rotating the connecting member, or the diaphragm valve further includes a driving member, which is transmission-connected to the connecting member and can drive the connecting member to rotate.

[0018] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0020] Figure 1 is a cross-sectional view of a diaphragm valve according to an embodiment of the present invention (the second mounting groove is located outside the diaphragm);

[0021] Figure 2 is a cross-sectional view of a diaphragm valve according to an embodiment of the present invention (the second mounting groove is located in the diaphragm).

[0022] Reference numerals:

[0023] Diaphragm valve 100;

[0024] Valve seat 10; valve body 11; valve body 111; partition 112; valve cover 12; first flow channel 13; second flow channel 14;

[0025] First inlet 141; second mounting slot 15;

[0026] Diaphragm 20; first portion 21; second portion 22; third portion 23; first guide through hole 231;

[0027] First magnetic member 30; second magnetic member 40; second guide through hole 41;

[0028] The magnetic blocking body 50 ; the first mounting groove 51 ; the static water chamber 60 ; and the guide member 70 . DETAILED DESCRIPTION

[0029] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0030] Reference below Figure 1 and Figure 2 A diaphragm valve 100 according to an embodiment of the present invention is described.

[0031] like Figure 1 and Figure 2 As shown, the diaphragm valve 100 according to the embodiment of the present invention includes: a valve seat 10 , a diaphragm 20 , a first magnetic member 30 and a second magnetic member 40 .

[0032] The valve seat 10 defines a first flow channel 13 and a second flow channel 14. The second flow channel 14 has a first inlet 141, and the first inlet 141 is connected to the first flow channel 13. The diaphragm 20 is arranged on the valve seat 10 and corresponds to the first inlet 141. The first magnetic member 30 is arranged on the valve seat 10, and the second magnetic member 40 is arranged on the diaphragm 20. Figure 1 The first magnetic member 30 and the second magnetic member 40 are correspondingly arranged, and a magnetic force can be generated between the first magnetic member 30 and the second magnetic member 40 to drive the diaphragm 20 to move, so as to adjust the opening of the first inlet 141.

[0033] The valve seat 10 defines a first flow channel 13 and a second flow channel 14, and the second flow channel 14 has a first inlet 141, which is connected to the first flow channel 13. That is, the first flow channel 13 and the second flow channel 14 are connected, and after the fluid enters the first flow channel 13, it enters the second flow channel 14 through the first inlet 141, and then flows out of the second flow channel 14. As some embodiments of the present application, the valve seat 10 is constructed by integral molding, and such a configuration can improve the structural strength of the valve seat 10.

[0034] The diaphragm 20 is disposed on the valve seat 10, and the diaphragm 20 is disposed corresponding to the first inlet 141. As some embodiments of the present application, the diaphragm 20 has a connecting hole, and the diaphragm 20 and the valve seat 10 jointly define a static water chamber 60. The fluid in the first flow channel 13 can flow into the static water chamber 60 through the connecting hole, so that the pressure of the fluid in the static water chamber 60 is equal to the pressure of the fluid in the first flow channel 13. As some embodiments of the present application, when the pressure of the fluid in the static water chamber 60 is equal to the pressure of the fluid in the first flow channel 13, the diaphragm 20 can close (or be understood as covering) the first inlet 141 under the action of elastic force to disconnect the first flow channel 13 and the second flow channel 14.

[0035] The first magnetic component 30 is arranged on the valve seat 10, and the second magnetic component 40 is arranged on the diaphragm 20. As some embodiments of the present application, the second magnetic component 40 is located inside the diaphragm 20, and as some embodiments of the present application, the second magnetic component 40 is located outside the diaphragm 20. As some embodiments of the present application, the material of the diaphragm 20 can be but not limited to rubber materials such as natural rubber, chloroprene rubber, and butyl rubber. As some embodiments of the present application, the first magnetic component 30 and the second magnetic component 40 are both constructed as cylindrical structures. As some embodiments of the present application, the first magnetic component 30 and the second magnetic component 40 can also be constructed in other shapes.

[0036] Along the first direction (i.e. Figure 1 The first magnetic member 30 and the second magnetic member 40 are arranged correspondingly. Specifically, a plane is set, and the plane is parallel to the first direction (ie, Figure 1 The normal of the plane is perpendicular to the first direction (i.e. Figure 1 The projection of the first magnetic component 30 on the plane and the projection of the second magnetic component 40 on the plane have an overlapping area. As some embodiments of the present application, the projection of the first magnetic component 30 on the plane and the projection of the second magnetic component 40 on the plane completely overlap.

[0037] A magnetic force can be generated between the first magnetic member 30 and the second magnetic member 40, and the magnetic force can drive the diaphragm 20 to move so as to adjust the opening of the first inlet 141. Specifically, the magnetic force includes attractive force and repulsive force. The magnetic force generated between the first magnetic member 30 and the second magnetic member 40 can be attractive force, or the magnetic force generated between the first magnetic member 30 and the second magnetic member 40 can be repulsive force. When the magnetic force generated between the first magnetic member 30 and the second magnetic member 40 is attractive force, the second magnetic member 40 can move in the first direction (i.e. Figure 1 The Z direction shown in the figure) approaches the first magnetic member 30, thereby driving a part of the structure of the diaphragm 20 along the first direction (i.e. Figure 1 The first magnetic member 30 is moved closer to the first inlet 141 in the Z direction as shown, thereby adjusting the opening of the first inlet 141.

[0038] It should be noted that the opening degree of the first inlet 141 includes a state where the opening degree is 0% (ie, not open) and a state where the opening degree is 100% (ie, fully open).

[0039] When the magnetic force generated between the first magnetic member 30 and the second magnetic member 40 is a repulsive force, the second magnetic member 40 can move in the first direction (i.e. Figure 1 The Z direction shown in the figure) is away from the first magnetic member 30, thereby driving a part of the structure of the diaphragm 20 along the first direction (i.e. Figure 1 The Z direction as shown in the figure) is away from the first magnetic member 30, thereby adjusting the opening of the first inlet 141.

[0040] As some embodiments of the present application, the diaphragm 20 closes (or is understood to cover) the first inlet 141 under the action of elastic force to block the first flow channel 13 and the second flow channel 14. That is to say, the diaphragm valve 100 is closed at this time, and by changing the magnetism of the first magnetic component 30 or the second magnetic component 40 (the first magnetic component 30 and / or the second magnetic component 40 can also generate magnetism), the magnetic force between the first magnetic component 30 and the second magnetic component 40 is made to be a repulsive force, which can further drive the diaphragm 20 downward to close (or is understood to cover) the first inlet 141, so that the diaphragm valve 100 remains closed.

[0041] As some embodiments of the present application, the diaphragm 20 closes (or is understood to cover) the first inlet 141 under the action of elastic force to block the first flow channel 13 and the second flow channel 14. That is to say, at this time, the diaphragm valve 100 is closed, and the magnetic properties of the first magnetic member 30 or the second magnetic member 40 are changed (the first magnetic member 30 and / or the second magnetic member 40 can also be made magnetic), so that the magnetic force between the first magnetic member 30 and the second magnetic member 40 is an attractive force. When the attractive force is greater than the downward elastic force of the diaphragm 20, the diaphragm 20 can be moved in the first direction (i.e. Figure 1 The first magnetic member 30 is approached in the Z direction as shown, so that the first inlet 141 is opened.

[0042] As some embodiments of the present application, by adjusting the magnitude and direction of the magnetic force between the first magnetic component 30 and the second magnetic component 40, the diaphragm 20 can be driven to move, thereby adjusting the opening of the first inlet 141 and further adjusting the opening of the diaphragm valve 100.

[0043] It should be noted that, by providing the first magnetic member 30 on the valve seat 10, the second magnetic member 40 on the diaphragm 20, the first magnetic member 30 and the second magnetic member 40 are provided correspondingly, and by changing the magnetism and magnetic force of the first magnetic member 30 and the second magnetic member 40, the relative position of the first magnetic member 30 and the second magnetic member 40 can be changed, and then the opening of the first inlet 141 can be adjusted by the second magnetic member 40 provided on the diaphragm 20. Such an arrangement can make the opening adjustment response of the first inlet 141 rapid, and the control is sensitive and reliable, which is conducive to improving the reliability of the use of the diaphragm valve 100. In addition, this form of diaphragm valve 100 has a simple structure, and low production cost and maintenance cost.

[0044] Therefore, by making the diaphragm 20 correspond to the first inlet 141, and the first magnetic component 30 is arranged on the valve seat 10, and the second magnetic component 40 is arranged on the diaphragm 20, the magnetic force generated between the first magnetic component 30 and the second magnetic component 40 can be used to drive the diaphragm 20 to move, so as to adjust the opening of the first inlet 141, so as to quickly respond and adjust the pressure and flow rate of the fluid in the diaphragm valve 100, which is beneficial to improve the reliability of the diaphragm valve 100. In addition, the diaphragm valve 100 has a simple structure and can reduce the production cost and maintenance cost of the diaphragm valve 100.

[0045] In some embodiments of the present invention, Figure 1 and Figure 2 As shown, the valve seat 10 includes: a valve body 11 and a valve cover 12, the valve body 11 and the valve cover 12 are detachably connected, the diaphragm 20 has a first part 21, a second part 22 and a third part 23, the second part 22 is connected between the first part 21 and the third part 23, the first part 21 is clamped between the valve body 11 and the valve cover 12, the thickness of the second part 22 is smaller than the thickness of the first part 21 and the third part 23, and the third part 23 can move toward or away from the first inlet 141 under the action of magnetic force to adjust the opening of the first inlet 141.

[0046] The valve seat 10 includes a valve body 11 and a valve cover 12, and the valve body 11 and the valve cover 12 are detachably connected. As some embodiments of the present application, the valve body 11 and the valve cover 12 are connected by bolts, and the diaphragm 20 has a first part 21, a second part 22 and a third part 23, along a first direction (i.e. Figure 1 The second part 22 has two opposite ends, one end of which is connected to the first part 21, and the other end of which is connected to the third part 23, that is, the second part 22 is connected between the first part 21 and the third part 23, and the first part 21 is clamped between the valve body 11 and the valve cover 12. Specifically, the first part 21 has two opposite ends, one end of which is clamped between the valve body 11 and the valve cover 12, and the other end of the first part 21 is connected to the second part 22.

[0047] The thickness of the second part 22 is smaller than that of the first part 21 and the third part 23, that is, the thickness of the second part 22 is smaller than that of the first part 21, and the thickness of the second part 22 is smaller than that of the third part 23. The third part 23 can move toward or away from the first inlet 141 under the action of the magnetic force to adjust the opening of the first inlet 141, that is, the third part 23 can move toward the first inlet 141 under the action of the magnetic force to reduce the opening of the first inlet 141, or the third part 23 can move away from the first inlet 141 under the action of the magnetic force to increase the opening of the first inlet 141.

[0048] As some embodiments of the present application, a sealing groove is provided on the surface where the valve body 11 cooperates with the first part 21, and a partial structure of the first part 21 is provided in the sealing groove so that the first part 21 is clamped between the valve body 11 and the valve cover 12. Such a setting is beneficial to the sealing of the diaphragm valve 100.

[0049] As some embodiments of the present application, one end of the third portion 23 facing the first inlet 141 is configured as a curved surface, so that the third portion 23 can reliably close the first inlet 141 .

[0050] By making the thickness of the second part 22 smaller than the thickness of the first part 21 and the third part 23, the flexibility of the diaphragm 20 can be increased, so that the second part 22 can be more easily elastically deformed, and the third part 23 can move toward or away from the first inlet 141 under the action of the magnetic force to adjust the opening of the first inlet 141. In addition, such an arrangement can make the structure of the diaphragm valve 100 reasonable, which is beneficial to improving the reliability of the diaphragm valve 100.

[0051] In some embodiments of the present invention, Figure 1 and Figure 2 As shown, along the first direction (i.e. Figure 1 The cross-sectional area of ​​the third portion 23 at one end thereof facing the first inlet 141 gradually increases from the direction in which the third portion 23 approaches the first inlet 141 to the direction in which the third portion 23 moves away from the first inlet 141.

[0052] Among them, along the first direction (i.e. Figure 1 The third portion 23 has two opposite ends, one end of which faces the first inlet 141 and the other end faces away from the first inlet 141. Along the direction from the end of the third portion 23 facing the first inlet 141 to the end of the third portion 23 away from the first inlet 141, the cross-sectional area of ​​the end of the third portion 23 facing the first inlet 141 gradually increases.

[0053] By gradually increasing the cross-sectional area of ​​one end of the third part 23 toward the first inlet 141 as the third part 23 approaches the first inlet 141 and moves away from the first inlet 141, the third part 23 can be easily and stably matched with the first inlet 141, thereby reducing the probability of the fluid flowing out through the gap between the diaphragm 20 and the valve seat 10 when the third part 23 closes the first inlet 141, thereby helping to improve the reliability of the diaphragm 20.

[0054] As some embodiments of the present application, an outer surface of one end of the third portion 23 facing the first inlet 141 may be configured as a conical surface.

[0055] In some embodiments of the present invention, Figure 1 and Figure 2 As shown, the valve seat 10 includes a valve body 11 , wherein the valve body 11 includes a valve main body 111 and a partition 112 , wherein the partition 112 is connected to the valve main body 111 and defines a first inlet 141 together with the valve main body 111 .

[0056] Among them, the valve seat 10 includes a valve body 11, and the valve body 11 includes a valve main body 111 and a partition 112. The valve main body 111 and the partition 112 are connected and arranged, and the valve main body 111 and the partition 112 jointly define a first inlet 141. As some embodiments of the present application, the valve main body 111 and the partition 112 are integrally formed, that is, the valve main body 111 and the partition 112 are constructed as an integrally formed part, and the integrally formed part has good structural strength. By integrally forming the valve main body 111 and the partition 112, the connection reliability of the valve main body 111 and the partition 112 can be improved, and the probability of breakage at the connection between the valve main body 111 and the partition 112 can be reduced.

[0057] By connecting the partition 112 to the valve body 111 and jointly defining the first inlet 141 with the valve body 111, the structure of the diaphragm valve 100 can be made reasonable, and the diaphragm 20 can cooperate with the first inlet 141 to adjust the opening of the first inlet 141. Moreover, such a setting has a simple structure and can reduce the maintenance cost of the diaphragm valve 100. In addition, such a setting can make the movement direction of the diaphragm 20 different from the direction of water flowing through the diaphragm valve 100, so as to reduce the impact of large water flow on the diaphragm 20, which is beneficial to improving the reliability of the diaphragm valve 100.

[0058] In some embodiments of the present invention, Figure 1 and Figure 2 As shown, the diaphragm valve 100 also includes: a magnet-blocking body 50, which is disposed on the diaphragm 20 and defines a first mounting groove 51 open toward the first magnetic member 30, and at least a portion of the second magnetic member 40 is disposed in the first mounting groove 51; the first mounting groove 51 is located inside the diaphragm 20 or outside the diaphragm 20.

[0059] The diaphragm valve 100 further includes a magnetic blocking body 50, which is disposed on the diaphragm 20, and the magnetic blocking body 50 defines a first mounting groove 51 open toward the first magnetic member 30, and at least a portion of the second magnetic member 40 is disposed in the first mounting groove 51, that is, a portion of the second magnetic member 40 is disposed in the first mounting groove 51, or the entire second magnetic member 40 is disposed in the first mounting groove 51. The first mounting groove 51 is located inside the diaphragm 20 or outside the diaphragm 20, in other words, the magnetic blocking body 50 is located inside the diaphragm 20, or a portion of the magnetic blocking body 50 is located outside the diaphragm 20, so that the first mounting groove 51 is located outside the diaphragm 20.

[0060] By making the diaphragm valve 100 also include a magnet-blocking body 50, and making the magnet-blocking body 50 define a first installation groove 51 open toward the first magnetic component 30, at least a portion of the second magnetic component 40 can be arranged in the first installation groove 51, and the downward magnetic force of the second magnetic component 40 can be reduced or shielded, thereby reducing the influence of the magnetic force of the second magnetic component 40 on the fluid, which is beneficial to improving the reliability of the diaphragm valve 100.

[0061] By locating the first installation groove 51 inside the diaphragm 20, the second magnetic member 40 can be embedded in the diaphragm 20 to improve the installation stability of the second magnetic member 40. By locating the first installation groove 51 outside the diaphragm 20, the second magnetic member 40 can be exposed outside the diaphragm 20, so that the second magnetic member 40 is easy to replace.

[0062] In some embodiments of the present invention, Figure 1 and Figure 2 As shown, the valve seat 10 defines a second installation groove 15 , and the first magnetic member 30 is disposed in the second installation groove 15 .

[0063] Among them, the valve seat 10 defines a second mounting groove 15, and the first magnetic component 30 is arranged in the second mounting groove 15. As some embodiments of the present application, the valve seat 10 includes a valve body 11 and a valve cover 12, the valve cover 12 defines a second mounting groove 15, and the first magnetic component 30 is arranged on the second mounting groove 15 defined by the valve cover 12.

[0064] By defining the second mounting groove 15 on the valve seat 10 and arranging the first magnetic component 30 in the second mounting groove 15, the structure of the diaphragm valve 100 can be made reasonable, and the first magnetic component 30 and the second magnetic component 40 can be arranged correspondingly, so that the diaphragm 20 can be driven to move by the magnetic force generated between the first magnetic component 30 and the second magnetic component 40 to adjust the opening of the first inlet 141. Moreover, the setting position of the first magnetic component 30 can be made reasonable, and the first magnetic component 30 can be protected by the valve seat 10 to reduce the probability of the first magnetic component 30 being damaged by impact.

[0065] In some embodiments of the present invention, Figure 1 and Figure 2As shown, the diaphragm 20 has a connecting hole, and the diaphragm 20 and the valve seat 10 together define a static water chamber 60, and the fluid in the first flow channel 13 can flow into the static water chamber 60 through the connecting hole, so that the pressure of the fluid in the static water chamber 60 is equal to the pressure of the fluid in the first flow channel 13.

[0066] As some embodiments of the present application, when the pressure of the fluid in the static water chamber 60 is equal to the pressure of the fluid in the first flow channel 13, the diaphragm 20 can close (or be understood as covering) the first inlet 141 under the action of elastic force. Alternatively, it can be designed according to actual application conditions that when the pressure of the fluid in the static water chamber 60 is equal to the pressure of the fluid in the first flow channel 13, the first inlet 141 has a certain opening, so that the diaphragm valve 100 can be applied to a variety of scenarios.

[0067] In some embodiments of the present invention, Figure 1 and Figure 2 As shown, the diaphragm valve 100 also includes: a guide member 70, the diaphragm 20 has a first guide hole 231, the second magnetic member 40 has a second guide hole 41 corresponding to the first guide hole 231, and the guide member 70 is arranged on the valve seat 10 and penetrates the first guide hole 231 and the second guide hole 41.

[0068] Among them, the diaphragm valve 100 also includes a guide member 70, the diaphragm 20 has a first guide hole 231, the second magnetic member 40 has a second guide hole 41, the second guide hole 41 is arranged corresponding to the first guide hole 231, and the guide member 70 is arranged on the valve seat 10. As some embodiments of the present application, the guide member 70 is connected to the valve cover 12 of the valve seat 10 by welding, and the guide member 70 is passed through the first guide hole 231 and the second guide hole 41, so that when the diaphragm 20 moves to adjust the opening of the first inlet 141, the diaphragm 20 and the second magnetic member 40 can move along the guide direction of the guide member 70.

[0069] By making the diaphragm valve 100 include a guide member 70, and making the diaphragm 20 have a first guide hole 231, and the second magnetic member 40 have a second guide hole 41, the guide member 70 can be inserted into the first guide hole 231 and the second guide hole 41, so that when the diaphragm 20 adjusts the opening of the first inlet 141, the diaphragm 20 and the second magnetic member 40 can move along the guide direction of the guide member 70, thereby reducing the probability of the diaphragm 20 and the second magnetic member 40 being displaced, which is beneficial to improving the reliability of the diaphragm valve 100.

[0070] As some embodiments of the present application, the second guide through hole 41 and the above-mentioned connecting hole may be the same hole to reduce the difficulty of producing the diaphragm valve 100 .

[0071] In some embodiments of the present invention, the first magnetic member 30 is configured as a permanent magnet or an electromagnet, and the second magnetic member 40 is configured as a permanent magnet or an electromagnet.

[0072] As some embodiments of the present application, the first magnetic member 30 is configured as a permanent magnet, and the second magnetic member 40 is configured as a permanent magnet.

[0073] As some embodiments of the present application, the first magnetic member 30 is configured as a permanent magnet, and the second magnetic member 40 is configured as an electromagnet.

[0074] As some embodiments of the present application, the first magnetic member 30 is configured as an electromagnet, and the second magnetic member 40 is configured as a permanent magnet.

[0075] As some embodiments of the present application, the first magnetic member 30 is configured as an electromagnet, and the second magnetic member 40 is configured as an electromagnet.

[0076] By configuring the first magnetic component 30 as a permanent magnet or an electromagnet and configuring the second magnetic component 40 as a permanent magnet or an electromagnet, the structures of the first magnetic component 30 and the second magnetic component 40 can be provided with a plurality of options. The first magnetic component 30 and / or the second magnetic component 40 with different structures can be selected according to the required magnetic force size and control method, which is beneficial to increase the selectivity of the diaphragm valve 100.

[0077] In some embodiments of the present invention, the first magnetic member 30 is constructed as an electromagnet or a permanent magnet, and the second magnetic member 40 is constructed as the other of the electromagnet or the permanent magnet. The direction and / or strength of the magnetic force between the first magnetic member 30 and the second magnetic member 40 is changed by changing the direction and / or current intensity of the current passed into the electromagnet to change the direction and / or strength of the magnetic force between the first magnetic member 30 and the second magnetic member 40 to adjust the opening of the first inlet 141.

[0078] In which, the first magnetic part 30 is constructed as one of an electromagnet or a permanent magnet, and the second magnetic part 40 is constructed as the other of an electromagnet or a permanent magnet. As some embodiments of the present application, the first magnetic part 30 is constructed as an electromagnet, and the second magnetic part 40 is constructed as a permanent magnet. By changing the direction of the current passed into the electromagnet, the direction of the magnetic force between the first magnetic part 30 and the second magnetic part 40 can be changed. By changing the intensity of the current passed into the electromagnet, the intensity of the magnetic force between the first magnetic part 30 and the second magnetic part 40 can be changed to adjust the opening of the first inlet 141.

[0079] As some embodiments of the present application, the first magnetic part 30 is constructed as an electromagnet, and the second magnetic part 40 is constructed as a permanent magnet. By passing current in a positive direction into the electromagnet, the magnetic force between the first magnetic part 30 and the second magnetic part 40 can be made a repulsive force. By increasing the current intensity passed into the electromagnet, the repulsive force between the first magnetic part 30 and the second magnetic part 40 can be increased. By reducing the current intensity passed into the electromagnet, the repulsive force between the first magnetic part 30 and the second magnetic part 40 can be reduced, so as to adjust the opening of the first inlet 141.

[0080] As some embodiments of the present application, the first magnetic part 30 is constructed as an electromagnet, and the second magnetic part 40 is constructed as a permanent magnet. By reversely passing current into the electromagnet, the magnetic force between the first magnetic part 30 and the second magnetic part 40 can be made into an attractive force. By reducing the intensity of the current passed into the electromagnet, the attractive force between the first magnetic part 30 and the second magnetic part 40 can be reduced. By increasing the intensity of the current passed into the electromagnet, the attractive force between the first magnetic part 30 and the second magnetic part 40 can be increased, so as to adjust the opening of the first inlet 141.

[0081] Alternatively, the first magnetic component 30 is constructed as a permanent magnet and the second magnetic component 40 is constructed as an electromagnet. This situation is the same as the control situation where the first magnetic component 30 is constructed as an electromagnet and the second magnetic component 40 is constructed as a permanent magnet, and this application will not elaborate on this.

[0082] By making the first magnetic component 30 be constructed as one of an electromagnet or a permanent magnet, and the second magnetic component 40 be constructed as the other of the electromagnet or the permanent magnet, the direction and strength of the magnetic force between the electromagnet and the permanent magnet can be changed by changing the direction and current intensity of the current passed into the electromagnet, thereby adjusting the opening of the first inlet 141, and the electromagnet is regulated by the current, with rapid response and precise adjustment, which can improve the accuracy of adjusting the opening of the diaphragm valve 100, and is beneficial for the diaphragm valve 100 to accurately control the water flow rate and pressure.

[0083] In some embodiments of the present invention, the first magnetic member 30 and the second magnetic member 40 are both constructed as electromagnets. The direction of the current passed through the first magnetic member 30 or the second magnetic member 40 is changed to change the direction of the magnetic force between the first magnetic member 30 and the second magnetic member 40. The intensity of the current passed through the first magnetic member 30 and / or the second magnetic member 40 is changed to change the intensity of the magnetic force between the first magnetic member 30 and the second magnetic member 40 to adjust the opening of the first inlet 141.

[0084] Among them, the first magnetic part 30 and the second magnetic part 40 are both constructed as electromagnets. By changing the direction of the current passed into the first magnetic part 30, the direction of the magnetic force between the first magnetic part 30 and the second magnetic part 40 can be changed. By changing the current intensity passed into the first magnetic part 30 and / or the second magnetic part 40, the intensity of the magnetic force between the first magnetic part 30 and the second magnetic part 40 can be changed to adjust the opening of the first inlet 141.

[0085] By changing the direction of the current passed into the second magnetic component 40, the direction of the magnetic force between the first magnetic component 30 and the second magnetic component 40 can be changed. By changing the intensity of the current passed into the first magnetic component 30 and / or the second magnetic component 40, the intensity of the magnetic force between the first magnetic component 30 and the second magnetic component 40 can be changed to adjust the opening of the first inlet 141.

[0086] Such a setting can improve the accuracy of adjusting the opening of the diaphragm valve 100 by regulating the electromagnet, so as to achieve rapid response and precise regulation, and is beneficial for the diaphragm valve 100 to accurately control the water flow rate and pressure.

[0087] In some embodiments of the present invention, along the first direction (i.e. Figure 1 In the Z direction shown in the figure), the two opposite ends of the first magnetic member 30 are respectively an N pole and an S pole, and the two opposite ends of the second magnetic member 40 are respectively an N pole and an S pole; or along a direction perpendicular to the first direction, the two opposite ends of the first magnetic member 30 are respectively an N pole and an S pole, and the two opposite ends of the second magnetic member 40 are respectively an N pole and an S pole.

[0088] As some embodiments of the present application, along the first direction (i.e. Figure 1 The first magnetic member 30 has two opposite ends, one end of which is an N pole, and the other end of which is an S pole. The second magnetic member 40 has two opposite ends, one end of which is an N pole, and the other end of which is an S pole.

[0089] As some embodiments of the present application, along a direction perpendicular to the first direction (i.e. Figure 1 The first magnetic member 30 has two opposite ends, one end of which is an N pole, and the other end of which is an S pole. The second magnetic member 40 has two opposite ends, one end of which is an N pole, and the other end of which is an S pole.

[0090] It should be noted that, since at least one of the first magnetic member 30 and the second magnetic member 40 can be configured as an electromagnet, the polarity of both ends of the electromagnet can be reversed by changing the direction of the current flowing into the electromagnet, thereby changing the direction of the magnetic force between the first magnetic member 30 and the second magnetic member 40. In addition, the direction perpendicular to the first direction can be Figure 1The X direction shown in the figure, or the direction perpendicular to the first direction can also be a direction perpendicular to both the first direction and the X direction. In this paper, the direction perpendicular to the first direction is Figure 1 The X direction shown is used as an example for description.

[0091] Such a setting can make the magnetic pole directions of the first magnetic component 30 and the second magnetic component 40 of the diaphragm valve 100 reasonable. By changing the direction of the current passed into the electromagnet, the polarity of the two ends of the electromagnet can be reversed, thereby changing the direction of the magnetic force between the first magnetic component 30 and the second magnetic component 40. It responds quickly and is accurate in adjustment, which is beneficial to improving the rationality of the diaphragm valve 100.

[0092] In some embodiments of the present invention, the first magnetic member 30 and the second magnetic member 40 are both constructed as permanent magnets, and the first magnetic member 30 and the second magnetic member 40 both have opposite ends, one end of the first magnetic member 30 is an N pole, and the other end of the first magnetic member 30 is an S pole, one end of the second magnetic member 40 is an N pole, and the other end of the second magnetic member 40 is an S pole, and the first magnetic member 30 can rotate relative to the valve seat 10 to change the direction and / or strength of the magnetic force between the first magnetic member 30 and the second magnetic member 40 to adjust the opening of the first inlet 141.

[0093] The first magnetic member 30 and the second magnetic member 40 are both configured as permanent magnets. The first magnetic member 30 can rotate relative to the valve seat 10. As some embodiments of the present application, the first magnetic member 30 is rotated in a direction perpendicular to the first direction (i.e., Figure 1 The second magnetic member 40 has two opposite ends, one end of the second magnetic member 40 is an N pole, and the other end of the second magnetic member 40 is an S pole. As some embodiments of the present application, along the first direction (i.e. Figure 1 The second magnetic member 40 has two opposite ends, one end of the second magnetic member 40 is an S pole, and the other end of the second magnetic member 40 is an N pole.

[0094] Furthermore, the first magnetic member 30 has two opposite ends, one end of which is an N pole, and the other end of which is an S pole. By rotating the first magnetic member 30, the direction of the magnetic force between the first magnetic member 30 and the second magnetic member 40 can be changed to adjust the opening of the first inlet 141. By rotating the first magnetic member 30, the strength of the magnetic force between the first magnetic member 30 and the second magnetic member 40 can be changed to adjust the opening of the first inlet 141.

[0095] As some embodiments of the present application, the rotation angle of the first magnetic member 30 is between 0-180 degrees. It can be understood that after the first magnetic member 30 rotates 180 degrees, the N pole and the S pole of the first magnetic member 30 are swapped in space.

[0096] By making the first magnetic part 30 and the second magnetic part 40 both constructed as permanent magnets, the direction and / or strength of the magnetic force between the first magnetic part 30 and the second magnetic part 40 can be changed by rotating the first magnetic part 30 to adjust the opening of the first inlet 141, thereby enabling the diaphragm 20 to be positioned accurately, thereby improving the accuracy of adjusting the opening of the diaphragm valve 100, and facilitating the reliability of the use of the diaphragm valve 100.

[0097] In some embodiments of the present invention, the diaphragm valve 100 further includes: a connecting member connected to the first magnetic member 30; the first magnetic member 30 can be rotated by rotating the connecting member, or the diaphragm valve 100 further includes a driving member, which is transmission-connected to the connecting member and can drive the connecting member to rotate.

[0098] The diaphragm valve 100 further includes a connecting member, which is connected to the first magnetic member 30. The connecting member and the first magnetic member 30 are connected by, but not limited to, welding, bolting, etc. In some embodiments of the present application, the connecting member and the first magnetic member 30 are connected by bolting. The first magnetic member 30 can be rotated by rotating the connecting member, and the direction and / or strength of the magnetic force between the first magnetic member 30 and the second magnetic member 40 can be changed to adjust the opening of the first inlet 141.

[0099] As some embodiments of the present application, by manually rotating the connecting member to rotate the first magnetic member 30 , the direction and / or strength of the magnetic force between the first magnetic member 30 and the second magnetic member 40 can be changed to adjust the opening of the first inlet 141 .

[0100] As some embodiments of the present application, the diaphragm valve 100 further includes a driving member, which is transmission-connected to the connecting member, and the driving member can drive the connecting member to rotate, so that the connecting member drives the first magnetic member 30 to rotate. The driving member can be, but is not limited to, a micro motor, a stepper motor, a servo motor, etc. As some embodiments of the present application, by using a micro motor to drive the connecting member to rotate the first magnetic member 30, and by using the diaphragm valve 100 in conjunction with sensors such as pressure sensors, Hall sensors, and travel switches, the water flow rate and pressure of the diaphragm valve 100 can be automatically and accurately controlled. As some embodiments of the present application, the micro motor can be transmission-connected to the connecting member through a speed reduction mechanism.

[0101] By making the diaphragm valve 100 also include a connecting part, the first magnetic part 30 can be rotated manually or automatically, which is beneficial to automatically and accurately control the water flow rate and pressure of the diaphragm valve 100. In addition, such a simple structure can reduce the maintenance cost of the diaphragm valve 100, which is beneficial to improving the reliability of the use of the diaphragm valve 100.

[0102] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0103] In the description of the present invention, "first feature" or "second feature" may include one or more of the features.

[0104] In the description of the present invention, "plurality" means two or more.

[0105] In the description of the present invention, a first feature being “on” or “under” a second feature may include that the first and second features are directly in contact with each other, or may include that the first and second features are not in direct contact with each other but are in contact with each other via another feature therebetween.

[0106] In the description of the present invention, “on”, “over” and “above” a first feature from a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature.

[0107] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0108] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A diaphragm valve, characterized in that: include: a valve seat, the valve seat defining a first flow channel and a second flow channel, the second flow channel having a first inlet, the first inlet selectively communicating with the first flow channel; a diaphragm, the diaphragm being disposed on the valve seat and corresponding to the first inlet; A first magnetic component and a second magnetic component, wherein the first magnetic component is disposed on the valve seat, and the second magnetic component is disposed on the diaphragm. The first magnetic component and the second magnetic component are correspondingly disposed along a first direction, and a magnetic force can be generated between the first magnetic component and the second magnetic component to drive the diaphragm to move, so as to adjust the opening of the first inlet.

2. The diaphragm valve according to claim 1, characterized in that: The valve seat comprises: a valve body and a valve cover, wherein the valve body and the valve cover are detachably connected, the diaphragm comprises a first part, a second part and a third part, the second part is connected between the first part and the third part, the first part is clamped between the valve body and the valve cover, the thickness of the second part is smaller than the thickness of the first part and the third part, and the third part can move toward or away from the first inlet under the action of magnetic force to adjust the opening of the first inlet.

3. The diaphragm valve according to claim 2, characterized in that: Along the first direction and from the direction where the third portion is close to the first inlet to the direction away from the first inlet, the cross-sectional area of ​​one end of the third portion toward the first inlet gradually increases.

4. The diaphragm valve according to claim 1, characterized in that: The valve seat comprises a valve body, wherein the valve body comprises a valve main body and a partition, wherein the partition is connected to the valve main body and defines the first inlet together with the valve main body.

5. The diaphragm valve according to claim 1, characterized in that: Also includes: a magnetic blocking body, the magnetic blocking body being arranged on the diaphragm and defining a first mounting groove open toward the first magnetic member, and at least a part of the second magnetic member being arranged in the first mounting groove; The first mounting groove is located inside the diaphragm or outside the diaphragm.

6. The diaphragm valve according to claim 1, characterized in that: The diaphragm and the valve seat jointly define a static water chamber, and the diaphragm has a communication hole, and the communication hole communicates the static water chamber and the first flow channel.

7. The diaphragm valve according to claim 1, characterized in that: Also includes: The guide member, the diaphragm has a first guide through hole, the second magnetic member has a second guide through hole corresponding to the first guide through hole, and the guide member is arranged on the valve seat and penetrates the first guide through hole and the second guide through hole.

8. The diaphragm valve according to claim 1, characterized in that: The first magnetic member is configured as a permanent magnet or an electromagnet, and the second magnetic member is configured as the permanent magnet or the electromagnet.

9. The diaphragm valve according to claim 8, characterized in that: The first magnetic member is configured as one of the electromagnet or the permanent magnet, and the second magnetic member is configured as the other of the electromagnet or the permanent magnet. The opening of the first inlet is adjusted by changing the direction and / or current intensity of the current passed through the electromagnet to change the direction and / or intensity of the magnetic force between the first magnetic member and the second magnetic member.

10. The diaphragm valve according to claim 8, characterized in that The first magnetic member and the second magnetic member are both constructed as electromagnets. The direction of the current passed through the first magnetic member or the second magnetic member is changed to change the direction of the magnetic force between the first magnetic member and the second magnetic member. The intensity of the current passed through the first magnetic member and / or the second magnetic member is changed to change the intensity of the magnetic force between the first magnetic member and the second magnetic member to adjust the opening of the first inlet.

11. The diaphragm valve according to claim 9 or 10, characterized in that: Along the first direction, two opposite ends of the first magnetic member are respectively an N pole and an S pole, and two opposite ends of the second magnetic member are respectively an N pole and an S pole; Or along a direction perpendicular to the first direction, two opposite ends of the first magnetic member are respectively an N pole and an S pole, and two opposite ends of the second magnetic member are respectively an N pole and an S pole.

12. The diaphragm valve according to claim 8, characterized in that The first magnetic member and the second magnetic member are both constructed as the permanent magnets, and the first magnetic member and the second magnetic member both have two opposite ends, one end of the first magnetic member is an N pole, and the other end of the first magnetic member is an S pole, one end of the second magnetic member is an N pole, and the other end of the second magnetic member is an S pole, and the first magnetic member can rotate relative to the valve seat to change the direction and / or strength of the magnetic force between the first magnetic member and the second magnetic member to adjust the opening of the first inlet.

13. The diaphragm valve according to claim 12, characterized in that: Also includes: A connecting member connected to the first magnetic member; The first magnetic member can be rotated by rotating the connecting member, or the diaphragm valve further includes a driving member, which is transmission-connected to the connecting member and can drive the connecting member to rotate.

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