Valve body of proportional valve, proportional valve and gas device

Abstract

The application discloses a valve body of a proportional valve, the proportional valve with the valve body and a gas equipment with the proportional valve, the valve body has a first interface, a plurality of valve cavities and a plurality of second interfaces corresponding to the plurality of valve cavities, the first interface is arranged on a peripheral wall of the valve body and communicates with the plurality of valve cavities, the plurality of second interfaces are arranged on the same end of the valve body, and the plurality of second interfaces respectively communicate with corresponding valve cavities, each second interface can communicate with the first interface through the corresponding valve cavity, the first interface comprises a first section and a second section, the first section communicates with the second section, the second section communicates with the plurality of valve cavities, and the second section is offset relative to the first section in a direction away from the second interface. According to the valve body of the proportional valve in the embodiment of the application, the structure of the valve body is more compact by offsetting the second section relative to the first section, the volume of the proportional valve is reduced, and therefore the arrangement space in the gas equipment can be saved.

Description

Technical Field

[0001] This invention relates to the field of gas equipment technology, and more particularly to a proportional valve body, a proportional valve having the valve body, and a gas equipment having the proportional valve. Background Technology

[0002] A proportional valve is a type of valve that can automatically adjust and control the on / off state of gas and precisely control the gas flow rate. Its working principle is as follows: gas enters the proportional valve chamber through the inlet. After receiving a signal, the proportional valve opens the ball valve. At this time, the gas enters the main chamber through the ball valve. The main chamber is directly connected to the inner ring. Therefore, when the ball valve is opened, there is gas in the inner ring. A shut-off valve is installed between the outlet of the outer ring and the middle ring and the main chamber for on / off control.

[0003] Currently, proportional valves on the market are large in size, thick, and complex in structure, resulting in poor overall assembly efficiency and low modularity. In addition, multi-ring gas equipment connected to proportional valves cannot achieve free combination control in each ring. Summary of the Invention

[0004] This invention aims to at least partially solve one of the technical problems in the related art. Therefore, one object of this invention is to provide a proportional valve body that can reduce the volume of the proportional valve, thereby saving layout space within gas equipment.

[0005] Another object of the present invention is to provide a proportional valve, the proportional valve comprising the aforementioned valve body.

[0006] Another object of the present invention is to provide a gas appliance comprising the aforementioned proportional valve.

[0007] According to an embodiment of the present invention, the valve body of a proportional valve has a first interface, a plurality of valve chambers, and a plurality of second interfaces corresponding to the plurality of valve chambers. The first interface is disposed on the peripheral wall of the valve body and communicates with the plurality of valve chambers. The plurality of second interfaces are disposed at the same end of the valve body and communicate with the corresponding valve chambers. Each second interface can communicate with the first interface through the corresponding valve chamber. The first interface includes a first segment and a second segment. The first segment communicates with the second segment and communicates with the plurality of valve chambers. The second segment is offset away from the second interface relative to the first segment.

[0008] According to the embodiments of the present invention, the valve body of the proportional valve is offset relative to the first section, making the structure of the valve body more compact and reducing the volume of the proportional valve, thereby saving the arrangement space in the gas equipment.

[0009] In addition, the valve body of the proportional valve according to the above embodiments may also have the following additional technical features:

[0010] Optionally, a plurality of valve chambers are arranged side by side along the axis of the second segment, and the second segment penetrates the wall between adjacent valve chambers to connect the plurality of valve chambers.

[0011] Optionally, the axis of the valve cavity is perpendicular to the axis of the second segment, and the axis of the second interface is collinear with the axis of the valve cavity.

[0012] Optionally, in the projection along the axis of the first segment, the second segment falls within the coverage area of ​​the first segment.

[0013] Optionally, the axis of the first segment and the axis of the second segment are parallel to each other.

[0014] Optionally, the axis of the first segment, the axis of the second segment, and the axis of the second interface are located on the same plane.

[0015] Optionally, the axis of the first segment and the axis of the second segment are collinear, and the dimension of the valve body along the thickness direction is less than or equal to 18 mm, wherein the thickness direction is perpendicular to the axis of the first segment, the axis of the second segment, and the axis of the second interface.

[0016] Optionally, the axis of the second segment is offset away from the axis of the first segment in a direction away from the second interface.

[0017] Optionally, the inner peripheral surface of the first interface further includes a first stepped surface, which connects the inner peripheral surface of the first segment and the inner peripheral surface of the second segment. A groove is provided on the first stepped surface, the opening of which is opposite to the first segment and communicates with the second segment.

[0018] Optionally, the inner circumferential surface of the settling trough is connected to the inner circumferential surface of the second section, and the inner bottom surface of the settling trough is lower than the first step surface, so that the settling trough is connected to the second section.

[0019] Optionally, the valve body includes a valve body, a first cover, and a second cover. The valve body has a valve cavity formed inside and is open at both ends. The first interface is located on the peripheral wall of the valve body. The first cover is connected to one end of the valve body. The second interface is located on the first cover. The second cover is connected to the other end of the valve body. The valve body is integrally formed.

[0020] According to an embodiment of the present invention, a proportional valve includes a valve body as described in the above embodiment, a plurality of sealing gaskets, and a plurality of drive components. The plurality of sealing gaskets correspond to a plurality of valve chambers. The sealing gaskets are disposed in the corresponding valve bodies and are movable to change the opening degree between the first interface and the corresponding second interface. The plurality of drive components correspond to a plurality of sealing gaskets and are connected to the corresponding sealing gaskets to drive the sealing gaskets to move.

[0021] Optionally, the drive assembly includes an electromagnetic drive, a diaphragm, and a magnetic component. The electromagnetic drive is connected to the other end of the valve body. The diaphragm is connected to the valve body and closes the other end of the valve body. The first interface and the second interface are located on the same side of the diaphragm. The magnetic component is connected to the sealing gasket and is adapted to drive the sealing gasket to move under the driving action of the electromagnetic drive.

[0022] Optionally, the drive assembly further includes a first seat and a second seat, the first seat being connected to the sealing gasket, the second seat being inserted into the first seat through the diaphragm, and the second seat and the first seat cooperating to clamp and fix the diaphragm.

[0023] Optionally, the magnetic component is sleeved on the second base and clamped and fixed by the first base and the second base.

[0024] Optionally, the axis of the electromagnetic drive extends along the axial direction of the valve body and is disposed opposite to the second interface.

[0025] According to an embodiment of the present invention, a gas device includes a proportional valve as described in the above embodiment. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of a proportional valve in some embodiments of the present invention.

[0027] Figure 2 This is a cross-sectional view of a proportional valve in some embodiments of the present invention.

[0028] Figure 3 This is a cross-sectional view of the valve body in some embodiments of the present invention.

[0029] Figure 4 This is a schematic diagram of the valve body in some embodiments of the present invention.

[0030] Figure 5 This is a schematic diagram of the first cover in some embodiments of the present invention.

[0031] Figure 6 This is a schematic diagram of the second cover in some embodiments of the present invention.

[0032] Figure 7 This is a schematic diagram of the installation of the proportional valve in some embodiments of the present invention.

[0033] Figure label:

[0034] Proportional valve 1000, valve body 100, valve chamber 10, first interface 20, first section 21, second section 22, settling groove 23, second interface 30, valve body 40, first cover 50, second cover 60, first stepped surface 70, sealing gasket 200, electromagnetic drive component 310, diaphragm 320, magnetic component 330, first seat 340, second seat 350. Detailed Implementation

[0035] The present invention proposes a valve body 100 of a proportional valve 1000, a proportional valve 1000 having the valve body 100, and a gas equipment having the proportional valve 1000, which can reduce the volume of the proportional valve 1000, thereby saving the arrangement space in the gas equipment.

[0036] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0037] like Figures 1 to 7 As shown, in an embodiment of the present invention, the valve body 100 of the proportional valve 100 has a first interface 20, a plurality of valve chambers 10, and a plurality of second interfaces 30 corresponding to the plurality of valve chambers 10. The first interface 20 is disposed on the peripheral wall of the valve body 100 and can communicate with the plurality of valve chambers 10. The plurality of second interfaces 30 are disposed at the same end of the valve body 100 and can communicate with the corresponding valve chambers 10 respectively. Each second interface 30 can communicate with the first interface 20 through the corresponding valve chamber 10. The first interface 20 includes a first segment 21 and a second segment 22. The first segment 21 communicates with the second segment 22, and the second segment 22 communicates with the plurality of valve chambers 10. The second segment 22 is offset away from the second interface 30 relative to the first segment 21, thereby reducing the volume of the proportional valve 1000 and saving the internal layout space of the gas equipment.

[0038] The first port 20 is used for air intake, and the second port 30 is used for air exhaust. That is, the gas enters the valve body 100 from the first port 20, passes through multiple valve chambers 10, and can leave from the second port 30 corresponding to the valve chamber 10.

[0039] Specifically, multiple sealing gaskets 200 can be provided in multiple valve chambers 10. Each sealing gasket 200 has a certain amount of space to move within its corresponding valve chamber 10, allowing it to change the opening between the first interface 20 and the corresponding second interface 30. Typically, the sealing gasket 200 is positioned between the first interface 20 and the corresponding second interface 30, and the opening is adjusted by moving the sealing gasket 200. In this invention, the second segment 22 is offset relative to the first segment 21 in a direction away from the second interface 30. During this process, the space for movement of the multiple sealing gaskets 200 can shift with the offset of the second segment 22, making the internal structure of the valve chamber 10 more compact. This reduces the volume of the valve body 100, improves its integration, and saves internal space in the gas equipment.

[0040] Therefore, according to the embodiment of the present invention, the valve body 100 of the proportional valve 100 is offset relative to the first segment 21 by the second segment 22, making the structure of the valve body 100 more compact and reducing the volume of the proportional valve 1000, thereby saving the arrangement space in the gas equipment.

[0041] like Figure 2 , Figure 3 and Figure 4 As shown, in some embodiments of the present invention, multiple valve chambers 10 are arranged side by side along the axis of the second segment 22, and the second segment 22 penetrates the wall between adjacent valve chambers 10 to connect multiple valve chambers 10, which facilitates the processing and manufacturing of the valve body 100.

[0042] The multiple valve chambers 10 are arranged side by side along the axis of the second segment 22, which facilitates the processing and manufacturing of the valve body 100. In other words, when the processing tool processes the valve body 100, it only needs to process the valve body 100 along the direction of the axis of the second segment 22 to penetrate the adjacent valve chambers 10. The processing direction of the multiple valve chambers 10 is consistent, which facilitates the processing and manufacturing of the valve body 100 and can save processing costs.

[0043] In addition, when gas enters valve body 100 from second section 22, due to the inertia of gas flow, the gas will continue to flow along the axis of second section 22. Multiple valve chambers 10 are arranged side by side along the axis of second section 22. Therefore, gas can quickly fill multiple valve chambers 10, which makes it easy for gas to flow out from multiple second ports 30, ensuring the normal use of proportional valve 1000.

[0044] Of course, in this invention, the first segment 21 can be connected to the second segment 22, and the second segment 22 can be connected to multiple valve chambers 10. That is, the second segment 22 can be connected to multiple valve chambers 10 at the same time; the second segment 22 can also be connected to at least one valve chamber 10, and adjacent valve chambers 10 can be connected to each other, so that the second segment 22 can connect to multiple valve chambers 10, etc. However, this is not a limitation on the scope of protection of this invention.

[0045] like Figure 3 As shown, in some embodiments of the present invention, the axis of the valve chamber 10 is perpendicular to the axis of the second segment 22, and the axis of the second interface 30 is collinear with the axis of the valve chamber 10. That is, the axis of the second segment 22 is perpendicular to the axis of the second interface 30. Therefore, compared with the case where the axis of the second segment 22 is parallel to the axis of the second interface 30, the perpendicularity of the axis of the second segment 22 to the axis of the second interface 30 can make the structure more compact. In addition, when the first interface 20 and the second interface 30 are connected to the gas pipe, the gas pipe can be arranged more reasonably and the wiring can be smoother within the limited internal space of the gas equipment.

[0046] like Figure 2 and Figure 3 As shown, in some embodiments of the present invention, in the projection along the axis of the first segment 21, the second segment 22 falls within the coverage area of ​​the first segment 21, which can cause the second segment 22 to shift within the projection range along the axis of the first segment 21, thereby reducing the projection of the valve body 100 along the axis of the first segment 21 and reducing the design size of the proportional valve 1000.

[0047] In the first interface 20, the size of the second segment 22 can be smaller than the size of the first segment 21. Therefore, when the second segment 22 is offset away from the first segment 21 in a direction away from the second interface 30, the second segment 22 can fall into the projection of the first segment 21 along the axis of the first segment 21. This can reduce the projected area of ​​the valve body 100 along the axis of the first segment 21, thereby reducing the volume of the proportional valve 1000 and saving the internal layout space of the gas equipment.

[0048] like Figure 2 and Figure 3 As shown, in some embodiments of the present invention, the axis of the first segment 21 and the axis of the second segment 22 are parallel to each other. That is, in the first interface 20, the extension directions of the first segment 21 and the second segment 22 are consistent, which facilitates the processing and manufacturing of the proportional valve 1000.

[0049] Therefore, in conjunction with the foregoing embodiments, such as Figure 2 and Figure 3As shown, in the projection along the axis of the first segment 21, the second segment 22 falls within the coverage area of ​​the first segment 21, and the axes of the first segment 21 and the second segment 22 are parallel to each other. During the manufacturing process of the valve body 100, the feed and retraction directions of the first segment 21 and the second segment 22 can be aligned. Since the size of the second segment 22 can be smaller than the size of the first segment 21, the second segment 22 can be processed first, and then the first segment 21 can be processed, which facilitates the retraction of the machining tool.

[0050] like Figures 1 to 4 As shown, in some embodiments of the present invention, the axis of the first segment 21, the axis of the second segment 22, and the axis of the second interface 30 are located on the same plane, or the axis of the first segment 21 and the axis of the second segment 22 are collinear, and the dimension of the valve body 100 along the thickness direction can be less than or equal to 18 mm, and the thickness direction is perpendicular to the axis of the first segment 21, the axis of the second segment 22, and the axis of the second interface 30. This can reduce the volume of the proportional valve 1000, thereby saving internal layout space in the gas equipment.

[0051] Among them, such as Figure 4 As shown, the dimension of the valve body 100 along the thickness direction can be H.

[0052] Specifically, the axis of the first segment 21, the axis of the second segment 22, and the axis of the second interface 30 are located on the same plane. That is, the dimensions of the valve body 100 along the thickness direction can remain unchanged. When the second segment 22 is offset relative to the first segment 21 in a direction away from the second interface 30, the moving space of the sealing gasket 200 inside the valve body 100 is also offset, making the internal space of the valve body 100 more compact and reducing the volume of the proportional valve 1000.

[0053] Furthermore, the axis of the first segment 21 and the axis of the second segment 22 are collinear, that is, the axis of the first segment 21 and the axis of the second segment 22 coincide and / or are parallel. When the second segment 22 is offset relative to the first segment 21 in a direction away from the second interface 30, the dimension of the valve body 100 in the thickness direction can be less than or equal to 18 mm (for example, the thickness of the valve body 100 can be 10 mm, 11 mm, etc.), thereby reducing the size of the proportional valve 1000. Of course, the dimension of the valve body 100 in the thickness direction can be greater than 18 mm and less than 38 mm, or greater than 38 mm; this is not a limitation on the scope of protection of this invention.

[0054] like Figure 2 and Figure 3As shown, in some embodiments of the present invention, the axis of the second segment 22 is offset away from the axis of the first segment 21 in a direction away from the second interface 30. That is, the axis of the second segment 22 is parallel to the axis of the first segment 21, and the second segment 22 is offset away from the second interface 30 in a direction away from the first segment 21. This causes the moving space of the sealing gasket 200 to also shift. Therefore, the projection of the valve body 100 along the axial direction of the first segment 21 can be reduced, thereby reducing the design size of the proportional valve 1000 and saving the internal layout space of the gas equipment.

[0055] like Figure 2 and Figure 3 As shown, in some embodiments of the present invention, the inner peripheral surface of the first interface 20 further includes a first stepped surface 70. The first stepped surface 70 is connected between the inner peripheral surface of the first segment 21 and the inner peripheral surface of the second segment 22. For example, since the axis of the second segment 22 is offset relative to the axis of the second segment 22, the aforementioned first stepped surface 70 can be formed. A groove 23 can be provided on the first stepped surface 70. The opening of the groove 23 can be opposite to the first segment 21, and the groove 23 can communicate with the second segment 22. When the second segment 22 is offset relative to the first segment 21 in a direction away from the second interface 30, it is ensured that the airflow rate entering the valve cavity 10 can reach a predetermined value.

[0056] Because the size of the second segment 22 is smaller than the size of the first segment 21, and there is an offset between the second segment 22 and the first segment 21, there will be an obstruction to the fluid flowing through the first interface 20, for example, as... Figure 2 and Figure 3 As shown, when the airflow enters the second section 22 from the first section 21, it is blocked by the first stepped surface 70, resulting in increased flow resistance. Therefore, by setting a settling tank 23 connected to the second section 22, the flow resistance can be effectively reduced.

[0057] Specifically, multiple sinks 23 can be provided on the first step surface 70. These sinks 23 can be connected to the second section 22. For example, multiple channels can be provided to connect the sinks 23 to the second section 22, or multiple through holes can be provided to connect the sinks 23 to the second section 22. Therefore, when gas flows from the first section 21 to the second section 22, at least a portion of the gas can flow from the sinks 23 to the second section 22, thereby ensuring that the gas flow rate entering the valve chamber 10 can reach the predetermined value, so that the gas equipment can be used normally.

[0058] like Figure 2 and Figure 3As shown, in some embodiments of the present invention, the inner circumferential surface of the settling trough 23 can be connected to the inner circumferential surface of the second segment 22, and the inner bottom surface of the settling trough 23 is lower than the first step surface 70, so that the settling trough 23 is connected to the second segment 22. In other words, an outlet connected to the first segment 21 is constructed on the circumferential surface of the settling trough 23, which can ensure that the gas flow rate entering the valve chamber 10 reaches a predetermined value and ensure the normal use of the gas equipment.

[0059] like Figure 4 , Figure 5 and Figure 6 As shown, in some embodiments of the present invention, the valve body 40 includes a valve body 40, a first cover 50, and a second cover 60. A valve cavity 10 is formed within the valve body 40 and is open at both ends. A first interface 20 is disposed on the peripheral wall of the valve body 40. The first cover 50 is connected to one end of the valve body 40, a second interface 30 is disposed on the first cover 50, and the second cover 60 is connected to the other end of the valve body 40. The valve body 40 is integrally formed, which facilitates the processing and manufacturing of the valve body 100.

[0060] In addition, a sealing element can be provided on the valve body 40 to improve the sealing performance of the valve body 100 and ensure that the proportional valve 1000 can be used normally. For example, the first cover 50 is connected to one end of the valve body 40, and a sealing element can be provided between the first cover 50 and the valve body 40 to improve the sealing performance of the valve body 100. Similarly, the second cover 60 is connected to the other end of the valve body 40, and a sealing element can be provided between the second cover 60 and the valve body 40 to improve the sealing performance of the valve body 100.

[0061] According to an embodiment of the present invention, a proportional valve 1000 includes a valve body 100 according to any of the above embodiments, a plurality of sealing gaskets 200, and a plurality of drive components. The plurality of sealing gaskets 200 correspond to a plurality of valve chambers 10. The sealing gaskets 200 are disposed in the corresponding valve bodies 100 and are movable to change the opening degree between the first interface 20 and the corresponding second interface 30. The plurality of drive components correspond to the plurality of sealing gaskets 200 and are connected to the corresponding sealing gaskets 200 to drive the sealing gaskets 200 to move, thereby controlling the gas flow rate through the proportional valve 1000. In addition, when connected to a multi-ring gas stove, the heat of each ring in the gas stove can be freely combined and controlled.

[0062] Specifically, when gas enters the valve body 100 from the first port 20, the drive assembly can drive the sealing gasket 200 in the corresponding valve cavity 10 to move, so that the first port 20 and the corresponding second port 30 are connected. Gas can then enter the valve body 100 from the first port 20, pass through the valve cavity 10, and leave the valve body 100 from the corresponding second port 30. During this process, the corresponding sealing gasket 200 can be set in the corresponding valve cavity 10 inside the valve body 100 and can move in a certain space, thereby changing the opening between the first port 20 and the second port 30, so that the flow rate of gas passing through the proportional valve 1000 changes.

[0063] Furthermore, when the second segment 22 is offset away from the second interface 30 relative to the first segment 21, since the second segment 22 can communicate with multiple valve chambers 10, the range of movement of the sealing gasket 200 will also be offset with the offset of the second segment 22. In the projection of the axis of the first segment 21, when the projection plane of the first segment 21 is tangent to the projection plane of the second segment 22, the projection area of ​​the valve body 100 along the axis of the first segment 21 can be minimized, thereby reducing the design size of the proportional valve 1000.

[0064] Secondly, the multiple sealing gaskets 200 and their corresponding drive components are independent of each other. Combined control of the gas appliances can be achieved by controlling the different gas flow rates discharged from the multiple second ports 30. For example, a proportional valve 1000 is used to connect to a dual-ring gas stove, allowing the dual-ring gas stove to produce different combinations of gas flow. For instance, the proportional valve 1000 has a dual-chamber structure 10, where one of the two second ports 30 connects to the inner ring of the gas stove, and the other connects to the outer ring. By controlling the corresponding drive components of the valve body 100, the opening degree between the first port 20 and the corresponding second port 30 is adjusted, ensuring that the gas flow rates through the two second ports 30 are the same. This allows the dual rings on the gas stove to generate the same amount of heat, achieving uniform heating of the substance. Of course, the gas flow rates through the two second ports 30 can also be different, resulting in different amounts of heat generated by the dual rings on the gas stove.

[0065] like Figure 1 , Figure 2 and Figure 7 As shown, in some embodiments of the present invention, the driving component includes an electromagnetic drive 310, a diaphragm 320, and a magnetic component 330. The electromagnetic drive 310 is connected to the other end of the valve body 100. The diaphragm 320 can be connected to the valve body 100 and close the other end of the valve body 100. The first interface 20 and the second interface 30 are disposed on the same side of the diaphragm 320. The magnetic component 330 can be connected to the sealing gasket 200, and the magnetic component 330 is adapted to drive the sealing gasket 200 to move under the driving action of the electromagnetic drive 310, so as to achieve precise control of the opening degree between the first interface 20 and the second interface 30.

[0066] The connection between the electromagnetic drive component 310 and the valve body 100 can be a threaded connection, etc.

[0067] Specifically, when the electromagnetic drive 310 is in operation, it can drive the magnetic component 330 to move within the valve body 100, thereby indirectly driving the sealing gasket 200 to move within the valve body 100. This changes the opening between the first port 20 and the second port 30, allowing gas to pass through the proportional valve 1000. When the electromagnetic drive 310 is not in operation, the sealing gasket 200 can separate the valve chamber 10, disconnecting the first port 20 and the second port 30. In this case, gas cannot pass through the proportional valve 1000.

[0068] In addition, the magnitude of the magnetic force generated by the electromagnetic drive 310 can cause the magnetic component 330 to be subjected to different forces, thereby changing the opening degree between the first interface 20 and the second interface 30, and achieving precise control of the opening degree.

[0069] Of course, depending on the actual situation, the electromagnetic drive component 310 can generate an attractive force, which can attract the magnetic component 330 to change the opening degree of the valve body 100. The electromagnetic drive component 310 can also generate a repulsive force, which can repel the magnetic component 330 to change the opening degree of the valve body 100.

[0070] like Figure 2 As shown, in some embodiments of the present invention, the drive assembly further includes a first seat 340 and a second seat 350. The first seat 340 is connected to the sealing gasket 200, and the second seat 350 is inserted into the first seat 340 through the diaphragm 320. The second seat 350 and the first seat 340 cooperate to clamp and fix the diaphragm 320, so that the first interface 20 and the second interface 30 are kept in the disconnected state.

[0071] Specifically, the diaphragm 320 is indirectly connected to the sealing gasket 200 through the first seat 340 and the second seat 350, and the diaphragm 320 can be connected to the valve body 100. When the electromagnetic drive 310 is not in operation, the diaphragm 320 has a certain elasticity, which can keep the sealing gasket 200 and the second step surface in a mutually abutting state, thereby disconnecting the first interface 20 and the second interface 30.

[0072] Of course, depending on the actual needs, the second seat 350 can also be configured to pass through the diaphragm 320 and be inserted into the outside of the first seat 340.

[0073] like Figure 2 As shown, in some embodiments of the present invention, the magnetic element 330 is sleeved on the second seat 350 and clamped and fixed by the first seat 340 and the second seat 350, which can improve the connection stability between the sealing gasket 200 and the magnetic element 330.

[0074] Specifically, when the electromagnetic drive 310 is working, it can drive the magnetic component 330 to move within the valve body 100. Since the magnetic component 330 is sleeved on the second seat 350 and clamped and fixed by the first seat 340 and the second seat 350, the electromagnetic drive 310 can indirectly drive the sealing gasket 200 to move within the valve body 100, thereby changing the opening between the first interface 20 and the second interface 30, so that the airflow passes through the proportional valve 1000.

[0075] In addition, the magnetic component 330 and the sealing gasket 200 are stably connected through the first seat 340 and the second seat 350, which can improve the stability of force transmission between the magnetic component 330 and the sealing gasket 200 and ensure the control of the valve body 100 opening degree.

[0076] like Figure 2 As shown, in some embodiments of the present invention, the axis of the electromagnetic drive 310 extends along the axial direction of the valve body 100 and is arranged opposite to the second interface 30 to ensure the stability of the operation of the proportional valve 1000.

[0077] The axis of the electromagnetic drive 310 extends along the axial direction of the valve body 100. That is, the direction of the magnetic force generated by the electromagnetic drive 310 is the axial direction of the valve body 100. Therefore, when the electromagnetic drive 310 drives the magnetic component 330, the magnetic component 330 can move along the axial direction of the valve body 100 to indirectly drive the sealing gasket 200 to control the opening degree of the valve body 100 and ensure the stability of the proportional valve 1000 operation.

[0078] According to an embodiment of the present invention, a gas appliance includes a proportional valve 1000 as described in any of the above embodiments. The second segment 22 of the proportional valve 1000 can be offset relative to the first segment 21 in a direction away from the second interface 30, causing the moving space of the sealing gasket 200 within the proportional valve 1000 to also shift, reducing the projected area of ​​the proportional valve 1000 along the axis of the first segment 21, thereby reducing the overall volume of the proportional valve 1000. This ultimately saves internal space within the gas appliance. Furthermore, the gas appliance can be freely combined and controlled according to user needs. For example, when the gas appliance is a multi-ring gas stove, the heat of each ring in the gas appliance can be controlled in various free combinations through the proportional valve 1000 to meet user requirements.

[0079] In addition, the proportional valve 1000 also has multiple second interfaces 30 and corresponding devices, which can realize various gas flow control methods for gas equipment.

[0080] Secondly, the proportional valve 1000 can be threaded and / or snap-fit ​​connected to the gas equipment to strengthen the connection between the proportional valve 1000 and the gas equipment.

[0081] For example, when the gas appliance is a dual-ring gas stove, and the proportional valve 1000 has a dual-chamber structure 10, one of the two second ports 30 in the proportional valve 1000 can be connected to the inner ring of the gas stove, and the other of the two second ports 30 can be connected to the outer ring of the gas stove. The magnetic element 330 can be driven by controlling the magnetic force of the electromagnetic drive element 310 to achieve the opening degree of the first port 20 and the corresponding second port 30. Therefore, the opening degree of the corresponding valve chamber 10 can be controlled by controlling the electromagnetic drive element 310, so that the gas flow rates through the two valve chambers 10 are the same or different. This allows the flame sizes produced by the two rings on the gas stove to be the same or different, enabling various combined control methods for the dual-ring gas stove.

[0082] According to some specific examples of the present invention, the air inlet (i.e., the first interface 20) and the air outlet (i.e., the second interface 30) are perpendicular to each other, and the coil assembly (i.e., the electromagnetic drive 310) and the air outlet (i.e., the second interface 30) are arranged in the same direction, all three being on the same horizontal plane. The proportional valve 1000 is horizontally mounted on the bottom shell of the whole unit (i.e., the gas equipment). The thickness of the proportional valve 1000 does not exceed 18mm, and other components that cooperate with the proportional valve 1000 are made smaller accordingly, reducing the overall volume of the proportional valve 1000 while ensuring strength.

[0083] According to some specific examples of the present invention, the bottom of the proportional valve 1000 is provided with a buckle and a screw hole. The bottom shell of the whole machine (i.e., gas equipment) can be opened with an opening and a screw fixing hole to cooperate with it. When fixing the proportional valve 1000, the buckle can be passed through the opening first, and then pushed in horizontally so that the screw hole is aligned. Then, the proportional valve 1000 is fixed on the bottom shell by tightening the screw.

[0084] According to some specific examples of the present invention, the cross-sectional diameter of the upper plastic seat (i.e., the second seat 350) is smaller than that of the lower plastic seat (i.e., the first seat 340). The upper plastic seat (i.e., the second seat 350) passes through the diaphragm 320 and the magnet (i.e., the magnetic element 330) and is inserted into the lower plastic seat (i.e., the first seat 340). The magnet (i.e., the magnetic element 330) does not need to occupy the space between the upper plastic seat (i.e., the second seat 350) and the upper cover (i.e., the second cover 60), which greatly reduces the height of the upper cover (i.e., the second cover 60) and reduces the overall volume of the proportional valve 1000.

[0085] According to specific examples of the present invention, both the air inlet (i.e., the first interface 20) and the air outlet (i.e., the second interface 30) of the valve body 100 are quick-connect structures, avoiding the air leakage problem that easily occurs when twisting pipes, and greatly improving installation efficiency. The air inlet channel is a parallel core-pulling structure, which allows for simplified mold design when there are two or more rings, eliminating the need for post-processing drilling. The central axis of the air inlet pipe is offset from the central axis of the air inlet channel (i.e., the first interface 20) of the valve body 100, reducing the total length in the air outlet direction while meeting the flow channel area requirements, thus reducing the overall volume of the proportional valve 1000.

[0086] According to some specific examples of the present invention, the working principle of the proportional valve 1000 is as follows: First, the gas enters the first chamber (i.e., valve chamber 10) of the valve body 100 through the gas pipe assembly via the inlet (i.e., the first interface 20). When the coil assembly (i.e., the electromagnetic drive 310) receives a current signal, it causes the soft magnetic rod to generate magnetic force, which repels the magnet below (i.e., the magnetic element 330). The ball valve (i.e., the sealing gasket 200) formed by the plastic lower seat (i.e., the first seat 340) and the sealing rubber element moves downward, and the gas enters the second chamber from the first chamber, and then enters the gas pipe assembly at the outlet (i.e., the second interface 30) for output.

[0087] According to some specific examples of the invention, the protrusion of the tracheal assembly may be retained only on the right side, while the left side may be omitted; alternatively, a slope may be present to facilitate the gradual expansion and sliding of the sealing ring into the corresponding position. The sealing surface may accommodate one or more sealing rings.

[0088] According to some specific examples of the present invention, the inner diameter of the sealing ring is smaller than the outer diameter of the sealing surface of the air tube assembly, and the outer diameter of the sealing ring is larger than the inner diameter of the air outlet (i.e., the second interface 30) of the valve body 100 assembly. The sealing surface is formed by compression deformation of both.

[0089] According to some specific examples of the present invention, an ultra-thin structure is proposed, in which the air intake channel (i.e., the first interface 20), the air outlet channel (i.e., the second interface 30), and the proportional valve 1000 are all on the same horizontal plane, with an overall thickness not exceeding 18mm; the air intake channel (i.e., the first interface 20) and the air outlet channel (i.e., the second interface 30) adopt a quick-connect structure, which improves the overall pipe connection efficiency while ensuring the gas passage area, and is equipped with a snap-fit ​​connection, which facilitates the assembly with the bottom shell of the whole machine; the proportional valve 1000 has a high degree of modularity and strong compatibility, and can realize the dual-ring, triple-ring, and more passage settings, and the control between each ring can be freely combined.

[0090] In the description of this invention, it should be understood that the terms "length", "thickness", "upper", "lower", "front", "rear", "left", "right", "horizontal", "top", "bottom", "inner", "outer", "axial", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0091] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0092] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0093] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0094] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0095] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A valve body for a proportional valve, characterized in that, The valve body has a first interface (20), a plurality of valve chambers (10) and a plurality of second interfaces (30) corresponding to the plurality of valve chambers (10). The first interface (20) is disposed on the peripheral wall of the valve body and communicates with the plurality of valve chambers (10). The plurality of second interfaces (30) are disposed at the same end of the valve body and communicate with the corresponding valve chambers (10). Each second interface (30) can communicate with the first interface (20) through the corresponding valve chamber (10). The first interface (20) includes a first segment (21) and a second segment (22). The first segment (21) communicates with the second segment (22), and the second segment (22) communicates with the plurality of valve chambers (10). The second segment (22) is offset away from the second interface (30) relative to the first segment (21). The axis of the second segment (22) is offset away from the second interface (30) compared to the axis of the first segment (21); The inner peripheral surface of the first interface (20) further includes a first stepped surface (70), which is connected between the inner peripheral surface of the first segment (21) and the inner peripheral surface of the second segment (22). A groove (23) is provided on the first stepped surface (70), the opening of the groove (23) is opposite to the first segment (21), and the groove (23) is connected to the second segment (22). In the projection along the axis of the first segment (21), the second segment (22) falls within the coverage area of ​​the first segment (21).

2. The valve body of the proportional valve according to claim 1, characterized in that, The plurality of valve chambers (10) are arranged side by side along the axis of the second segment (22), and the second segment (22) penetrates the wall between adjacent valve chambers (10) to connect the plurality of valve chambers (10).

3. The valve body of the proportional valve according to claim 2, characterized in that, The axis of the valve chamber (10) is perpendicular to the axis of the second segment (22), and the axis of the second interface (30) is collinear with the axis of the valve chamber (10).

4. The valve body of the proportional valve according to claim 2, characterized in that, The axis of the first segment (21) and the axis of the second segment (22) are parallel to each other.

5. The valve body of the proportional valve according to claim 1, characterized in that, The axis of the first segment (21), the axis of the second segment (22), and the axis of the second interface (30) are located on the same plane.

6. The valve body of the proportional valve according to claim 1, characterized in that, The axis of the first segment (21) and the axis of the second segment (22) are collinear, and the dimension of the valve body along the thickness direction is less than or equal to 18 mm, the thickness direction being perpendicular to the axis of the first segment (21), the axis of the second segment (22) and the axis of the second interface (30).

7. The valve body of the proportional valve according to claim 1, characterized in that, The inner circumferential surface of the sinking trough (23) is connected to the inner circumferential surface of the second section (22), and the inner bottom surface of the sinking trough (23) is lower than the first step surface (70) so that the sinking trough (23) is connected to the second section (22).

8. The valve body of the proportional valve according to any one of claims 1-6, characterized in that, include: The valve body (40) has the valve cavity (10) formed inside it and is open at both ends. The first interface (20) is provided on the peripheral wall of the valve body (40). A first cover (50) is connected to one end of the valve body (40), and a second interface (30) is provided on the first cover (50); The second cover (60) is connected to the other end of the valve body (40), wherein the valve body (40) is integrally formed.

9. A proportional valve, characterized in that, include: Valve body according to any one of claims 1-8; Multiple sealing gaskets (200) are provided in the corresponding valve bodies and are movable to change the opening between the first interface (20) and the corresponding second interface (30). Multiple drive components are provided, each corresponding to a plurality of the sealing gaskets (200), and the drive components are connected to the corresponding sealing gaskets (200) to drive the sealing gaskets (200) to move.

10. The proportional valve according to claim 9, characterized in that, The driving component includes: An electromagnetic drive unit (310) is connected to the other end of the valve body; A diaphragm (320) is connected to the valve body and closes the other end of the valve body. The first interface (20) and the second interface (30) are located on the same side of the diaphragm (320). A magnetic component (330) is connected to the sealing gasket (200), and the magnetic component (330) is adapted to drive the sealing gasket (200) to move under the driving action of the electromagnetic drive component (310).

11. The proportional valve according to claim 10, characterized in that, The driving component also includes: A first seat (340) is connected to the sealing gasket (200); The second seat (350) passes through the diaphragm (320) and is inserted into the first seat (340), and the second seat (350) and the first seat (340) cooperate to clamp and fix the diaphragm (320).

12. The proportional valve according to claim 11, characterized in that, The magnetic component (330) is sleeved on the second base (350) and is clamped and fixed by the first base (340) and the second base (350).

13. The proportional valve according to claim 10, characterized in that, The axis of the electromagnetic drive (310) extends along the axial direction of the valve body and is disposed opposite to the second interface (30).

14. A gas-fired appliance, characterized in that, Includes the proportional valve according to any one of claims 9-13.

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