CN218670649U - Valve body of proportional valve, proportional valve and gas equipment - Google Patents

Abstract

The utility model discloses a valve body of a proportional valve, a proportional valve with the valve body and gas equipment with the proportional valve. The valve body has a valve cavity, a first interface and a second interface. The first interface It is arranged on the peripheral wall of the valve body, and the second interface is arranged at one end of the valve body, the first interface and the second interface can communicate through the valve cavity, and the first interface includes A first section and a second section, the first section communicates with the second section, and the second section communicates with the valve chamber, the second section is closer to the first section than the first section The valve cavity, 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 present invention, the volume of the proportional valve can be reduced, thereby saving the arrangement space in the gas equipment.

Description

Proportional valve body, proportional valve and gas equipment

technical field

The utility model relates to the technical field of gas equipment, in particular to a valve body of a proportional valve, a proportional valve and gas equipment.

Background technique

The proportional valve is a valve body that can automatically adjust, automatically control the gas on and off, and automatically and accurately control the gas flow. Its working principle is that the gas passes through the air inlet and first enters the proportional valve chamber. After the proportional valve receives the signal, Open the ball valve, at this time, the gas enters the main chamber through the ball valve, and the main chamber is directly connected to the inner ring, so when the ball valve is opened, the inner ring has gas; a cut-off is set between the gas outlets of the outer ring and the middle ring and the main chamber The valve performs on-off control.

At present, proportional valves on the market are large in size, thick in thickness, complex in structure, poor in assembly efficiency, and low in modularization.

Utility model content

The utility model aims to solve one of the technical problems in the related art at least to a certain extent. Therefore, an object of the present invention is to provide a valve body of a proportional valve, which can reduce the volume of the proportional valve, thereby saving the arrangement space in the gas equipment.

Another object of the present utility model is to provide a proportional valve, which includes the aforementioned valve body.

Another object of the present utility model is to provide a gas appliance, which includes the aforementioned proportional valve.

According to the valve body of the proportional valve in the embodiment of the present utility model, the valve body has a valve cavity, a first interface and a second interface, the first interface is arranged on the peripheral wall of the valve body, and the second The interface is arranged at one end of the valve body, the first interface and the second interface can communicate through the valve cavity, the first interface includes a first section and a second section, the first section and the The second section communicates with the valve chamber, the second section is closer to the valve chamber than the first section, and the second section is closer to the valve chamber than the first section. A section is offset in a direction away from the second interface.

According to the valve body of the proportional valve in the embodiment of the present invention, the volume of the proportional valve can be reduced, thereby saving the arrangement space in the gas equipment.

In addition, according to the valve body of the proportional valve in the above embodiments of the present invention, it can also have the following additional technical features:

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

Optionally, the inner peripheral surface of the first interface further includes a first stepped surface, and the first stepped surface is connected between the inner peripheral surface of the first section and the inner peripheral surface of the second section, A sunken groove is provided on the surface of the first step, the opening of the sunken groove is opposite to the first section, and the sunken groove communicates with the second section.

Optionally, the inner peripheral surface of the sinking groove is connected to the inner peripheral surface of the second section, and the inner bottom surface of the sinking groove is lower than the first stepped surface, so that the sinking groove and the second segment Two-stage connection.

Optionally, in projection along the axis of the first segment, the second segment falls within the coverage of the first segment.

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

Optionally, it includes a valve main body, a first cover and a second cover, the valve cavity is configured inside the valve main body and both ends are open, the first interface is provided on the peripheral wall of the valve main body, the The first cover is connected to one end of the valve body, the second interface is provided on the first cover, and the second cover is connected to the other end of the valve body.

Optionally, the second cover is provided with ventilation holes.

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.

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

According to a proportional valve in an embodiment of the present invention, the proportional valve includes the valve body, the sealing gasket and the driving assembly in the above embodiments, the sealing gasket is arranged in the valve body and can move to change the The opening between the first interface and the second interface, the driving assembly is connected with the sealing gasket to drive the sealing gasket to move.

Optionally, the inner peripheral surface of the valve body includes a second stepped surface, the second stepped surface extends along the circumferential direction of the valve body and faces the second interface, and the second stepped surface is located at On one side of the first interface close to the second interface, the gasket is adapted to move between the second stepped surface and the second interface to adjust the first interface and the second interface. The opening between the interfaces.

Optionally, the drive assembly includes an electromagnetic drive, a diaphragm and a magnetic member, the electromagnetic drive member is connected to the other end of the valve body, the diaphragm is connected to the valve body, and closes the valve body The other end, the first port and the second port are located on the same side of the diaphragm, the magnetic part is connected to the gasket, and the magnetic part is suitable for the electromagnetic drive Under the driving action of the parts, the sealing gasket is driven to move.

Optionally, the drive assembly further includes a first seat and a second seat, the first seat is connected to the gasket, and the second seat is inserted into the first seat through the diaphragm. The second seat and the first seat cooperate to clamp and fix the diaphragm.

Optionally, the magnetic member is sleeved on the second seat, and clamped and fixed by the first seat and the second seat.

Optionally, the axis of the electromagnetic driver extends along the axial direction of the valve body and is arranged opposite to the second interface.

Optionally, the proportional valve further includes a first connecting pipe and a second connecting pipe, the first connecting pipe is inserted into the first section of the first interface, and the second connecting pipe is inserted into the second interface.

Optionally, at least one of the first connecting pipe and the second connecting pipe includes a pipe body and a first flange, and the first flange protrudes from the outer peripheral surface of the pipe body for positioning sealing ring.

Optionally, the connecting pipe further includes a second flange, the second flange is opposite to the first flange, and the first flange and the second flange cooperate to form a sealing ring. An annular groove, wherein, the surface of the second flange facing away from the first flange is configured such that the height of the protrusion relative to the outer peripheral surface of the pipe body gradually decreases in a direction away from the first flange guide slope.

Optionally, the connecting pipe is integrally formed.

According to a gas appliance in an embodiment of the present utility model, the gas appliance includes the proportional valve in the above embodiment.

Description of drawings

Fig. 1 is a schematic diagram of a proportional valve in some embodiments of the present invention.

Fig. 2 is a cross-sectional view of a proportional valve in some embodiments of the present invention.

Fig. 3 is a cross-sectional view of the valve body in some embodiments of the present invention.

Fig. 4 is a schematic diagram of a valve body in some embodiments of the present invention.

Fig. 5 is a schematic diagram of the first cover in some embodiments of the present invention.

Fig. 6 is a schematic diagram of the second cover in some embodiments of the present invention.

Fig. 7 is a schematic diagram of installation of a proportional valve in some embodiments of the present invention.

Reference signs:

Proportional valve 1000, valve body 100, valve cavity 10, first port 20, first segment 21, second segment 22, sinker 23, second port 30, valve body 40, first cover 50, second cover 60, vent hole 61, first step surface 70, second step surface 80, gasket 200, electromagnetic drive part 310, diaphragm 320, magnetic part 330, first base 340, second base 350, first connection 400 , the second connecting pipe 500 , the first flange 600 , the second flange 700 , and the sealing ring 800 .

Detailed ways

The utility model proposes a valve body 100 of a proportional valve 1000, a proportional valve 1000 with the valve body 100 and a gas equipment with the proportional valve 1000, which can reduce the volume of the proportional valve 1000, thereby saving energy in the gas equipment. Arrange the space.

Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention, but should not be construed as limiting the present invention.

As shown in Figures 1 to 7, according to the valve body 100 of the proportional valve 1000 in the embodiment of the present utility model, the valve body 100 has a valve cavity 10, a first interface 20 and a second interface 30, and the first interface 20 is arranged on the valve On the peripheral wall of the body 100, and the second port 30 is arranged at one end of the valve body 100, the first port 20 and the second port 30 can communicate through the valve chamber 10, the first port 20 includes a first segment 21 and a second segment 22, The first section 21 can communicate with the second section 22, and the second section 22 can communicate with the valve cavity 10, the second section 22 is closer to the valve cavity 10 than the first section 21, and the second section 22 is relatively close to the first section 22. The section 21 is offset in a direction away from the second port 30, so that the volume of the proportional valve 1000 can be reduced, and the arrangement space inside the gas equipment can be saved.

Wherein, the first port 20 can be used for intake, and the second port 30 can be used for gas outlet, that is, gas enters the valve body 100 from the first port 20 , passes through the valve cavity 10 , and exits from the second port 30 . Of course, the flow direction of the airflow can be reversed, in other words, the first interface 20 can also be set to be used for air outlet, and the second interface 30 can be used for air intake. In order to simplify the description, if there is no special explanation, the utility model will be described below mainly by taking the first port 20 to take in the air and the second port 30 to take the air out as an example.

In addition, the first interface 20 includes a first section 21 and a second section 22, and the second section 22 is closer to the valve chamber 10 than the first section 21. The first segment 21 and the second segment 22 then enter the valve cavity 10 .

Specifically, a gasket 200 may be provided in the valve body 100, and the gasket 200 has a certain movable space in the valve cavity 10, which can facilitate the movement of the gasket 200 in the valve cavity 10 to change the first interface 20 and the second interface. The opening between the two interfaces 30. Generally speaking, the sealing gasket 200 will be arranged between the first interface 20 and the second interface 30, and the adjustment of the opening degree will be realized through the movement of the sealing gasket 200. In the utility model, the second section 22 is compared with the first section 21 is shifted away from the second interface 30, so that the movable space of the gasket 200 is shifted with the shift of the second section 22, so that the internal structure of the valve chamber 10 is more compact, and the volume of the valve body 100 is reduced. At the same time, the integration degree of the valve body 100 is improved, and the layout space inside the gas equipment is saved.

Therefore, according to the valve body 100 of the proportional valve 1000 in the embodiment of the present utility model, the volume of the proportional valve 1000 can be reduced, thereby saving the arrangement space in the gas equipment.

In order to realize the offset of the second section 22 relative to the first section 21, the axes of the second section 22 and the first section 21 can be tilted or misaligned, etc. In the utility model, the distance between the second section 22 and the first section 21 is mainly used. The axis is misaligned to realize the offset of the second section 22 relative to the first section 21, but this is not a limitation to the protection scope of the present invention.

As shown in Figures 2 and 3, in some embodiments of the present invention, the axis of the second section 22 can be offset in a direction away from the second interface 30 compared to the axis of the first section 21, which can make the gasket The movable space of 200 is offset with the offset of the axis of the second section 22, thereby reducing the volume of the valve body 100, making the internal structure of the valve cavity 10 more compact, and improving the integration of the valve body 100, thereby saving Arrangement space inside the gas appliance.

In some embodiments of the present utility model, the inner peripheral surface of the first interface 20 further includes a first stepped surface 70, and the first stepped surface 70 is connected to the inner peripheral surface of the first segment 21 and the inner peripheral surface of the second segment 22 Between, for example, since the axis of the second section 22 is offset from the axis of the first section 21 , the aforementioned first stepped surface 70 may be formed. A sinking groove 23 can be provided on the first step surface 70, and the opening of the sinking groove 23 can be opposite to the first section 21, and the sinking groove 23 can be communicated with the second section 22, so that the second section 22 can be connected to the first section. When 21 deviates in a direction away from the second port 30, it is ensured that the gas flow rate entering the valve cavity 10 reaches a predetermined value.

Specifically, there is an offset between the second section 22 and the first section 21, which will hinder the fluid flowing through the first interface 20. For example, as shown in FIG. 2, the airflow enters the second section from the first section 21 22, a part of the lower end of the first section 21 is covered by the first stepped surface 70, resulting in an increase in the flow resistance of the fluid. Therefore, in the present invention, the flow resistance can be effectively reduced by setting the sinker 23 connected to the second section 22 .

Specifically, a sinker 23 may be provided on the first step surface 70, and a plurality of sinker 23 may be provided, and the plurality of sinker 23 may be communicated with the second section 22, wherein the sinker 23 may be connected by setting a plurality of passages. It communicates with the second section 22, and a plurality of through holes can also be set to communicate the sinking tank 23 with the second section 22. Therefore, when the gas flows from the first section 21 to the second section 22, part of the gas can enter through the sinking tank 23 The second section 22 ensures that the gas flow rate entering the valve chamber 10 can reach a predetermined value.

As shown in Figure 2 and Figure 3, in some embodiments of the present invention, the inner peripheral surface of the sinking groove 23 can be connected with the inner peripheral surface of the second section 22, and the inner bottom surface of the sinking groove 23 is lower than the first step surface 70, so that the sinker 23 can communicate with the second section 22. In other words, an opening communicating with the first segment 21 is configured on the peripheral surface of the sinker 23 . Therefore, the flow area of the gas entering the second section 22 can be guaranteed to be a predetermined value, so that the flow rate of the gas entering the valve cavity 10 can meet the usage requirements.

As shown in Figures 2 and 3, in some embodiments of the present invention, in the projection along the axis of the first section 21, the second section 22 falls within the coverage of the first section 21, which can ensure that the first section 22 The offset range of the second section 22 does not exceed the projection on the axis of the first section 21 , so that the projection of the valve body 100 along the axis of the first section 21 is reduced, thereby reducing the design size of the proportional valve 1000 .

Wherein, in the first interface 20, the size of the first section 21 is larger than the size of the second section 22, therefore, when the axis of the second section 22 deviates from the axis of the first section 21 toward the direction away from the second interface 30 Time shift, in the projection along the axis of the first section 21, the projection of the second section 22 can fall into the projection of the first section 21, thereby reducing the projected area of the valve body 100 along the axis of the first section 21 , thereby reducing the volume of the proportional valve 1000 and saving the layout space inside the gas equipment.

As shown in FIGS. 2 and 3 , in some embodiments of the present invention, the axis of the first section 21 and the axis of the second section 22 are parallel to each other, that is, in the first interface 20, the first section 21 The extension direction of the second section 22 is the same, which can facilitate the manufacturing and processing of the proportional valve 1000 . Wherein, the axis of the first segment 21 may have an angle less than 90° with the peripheral wall of the valve body 100 , and the axis of the first segment 21 may also be perpendicular to the peripheral wall of the valve body 100 .

As shown in Figures 2 and 3, in combination with the aforementioned embodiments, in the projection along the axis of the first section 21, the second section 22 falls within the coverage of the first section 21, and the axis of the first section 21 and the second section The axes of the two sections 22 are parallel to each other, which can facilitate the processing of the valve body 100, that is, during the processing of the valve body 100, the processing tools of the first section 21 and the second section 22 have the same feed direction, and can follow the second section 22, The sequential processing of the first segment 21 is convenient for the processing tool to retreat.

As shown in Fig. 1, Fig. 2, Fig. 4, Fig. 5 and Fig. 6, in some embodiments of the present invention, including a valve body 40, a first cover body 50 and a second cover body 60, the internal structure of the valve body 40 Out of the valve cavity 10, and both ends of the valve body 40 are open, the first port 20 is set on the peripheral wall of the valve body 40, the first cover 50 is connected to one end of the valve body 40, and the second port 30 is set on the first cover 50 , the second cover 60 is connected to the other end of the valve body 40 , which facilitates the processing and assembly of the valve body 100 .

In addition, a seal can be provided on the valve body 40 to improve the sealing performance of the valve body 100 and ensure the normal operation of the proportional valve 1000. For example, the first cover 50 is connected to one end of the valve body 40, which can be A seal is set between a cover body 50 and the valve body 40 to improve the sealing performance of the valve body 100. Similarly, the second cover body 60 is connected to the other end of the valve body 40, and can be connected between the second cover body 60 and the valve body. A seal is provided between the main bodies 40 to improve the sealing performance of the valve body 100 .

As shown in FIG. 6 , in some embodiments of the present invention, the second cover 60 is provided with a vent hole 61 , and the vent 61 can maintain the balance of internal and external pressure on both sides of the second cover 60 . Specifically, the inner side of the second cover 60 can be provided with a diaphragm 320, and the inner side of the second cover 60 can be closed by the diaphragm 320, and the diaphragm 320 can be used to connect and position the sealing gasket 200 (the sealing gasket 200 uses to adjust the opening), since the gasket 200 needs to move to adjust the opening, the diaphragm 320 also needs to move with the gasket 200, the air pressure between the diaphragm 320 and the second cover 60 will change, therefore, by The second cover 60 is provided with air holes 61 to facilitate the movement of the diaphragm 320 .

As shown in Figure 1, Figure 2, Figure 4 and Figure 7, 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 section 21 and the axis of the second section 22 are collinear, and the dimension of the valve body 100 along the thickness direction is less than or equal to 18 millimeters, and the thickness direction is perpendicular to the axis of the first section 21, the axis of the second section 22 and The axis of the second interface 30 can reduce the volume of the proportional valve 1000, thereby saving the arrangement space inside the gas equipment.

Wherein, as shown in FIG. 4 , the dimension of the valve body 100 along the thickness direction may be H.

Specifically, the axis of the first section 21, the axis of the second section 22 and the axis of the second interface 30 are located on the same plane, that is, when the second section 22 moves away from the second interface 30 relative to the first section 21 When the direction is shifted, the size of the valve body 100 in the thickness direction remains unchanged. At the same time, with the shift of the second section 22, the movable space of the gasket 200 in the valve body 100 also shifts accordingly, which can be reduced. The volume of the valve body 100 is reduced, thereby reducing the volume of the proportional valve 1000 and saving the layout space inside the gas equipment.

In addition, the axis of the first segment 21 and the axis of the second segment 22 are collinear, in other words, the axis of the first segment 21 and the axis of the second segment 22 are coincident and/or parallel, when the second segment 22 is relatively When the first section 21 is shifted away from the second interface 30, the dimension of the valve body 100 in the thickness direction is less than or equal to 18 millimeters (for example, the thickness of the valve body 100 can be 15 millimeters, 16 millimeters, etc.), thereby realizing a proportional valve. 1000 volume reduction.

Certainly, the dimension of the valve body 100 along the thickness direction may be greater than 18 mm and less than 38 mm, or greater than 38 mm, which is not a limitation to the protection scope of the present invention.

As shown in Figure 2, according to a proportional valve 1000 in an embodiment of the present invention, the proportional valve 1000 includes a valve body 100, a gasket 200 and a drive assembly according to any one of the above embodiments, and the gasket 200 is arranged on the valve body 100 is movable to change the opening between the first port 20 and the second port 30 , and the driving assembly is connected to the gasket 200 to drive the gasket 200 to move so as to control the flow of gas passing through the proportional valve 1000 .

Specifically, when the gas enters the valve body 100 from the first port 20, the driving assembly can drive the gasket 200 to move so that the first port 20 and the second port 30 communicate, and the gas can enter the valve body 100 from the first port 20 , after passing through the valve cavity 10, leave the valve body 100 from the second interface 30, during this process, the gasket 200 is set in the valve body 100, and can move within a certain range, thereby changing the first interface 20 and the second interface The opening between 30 makes the flow rate of the gas passing through the proportional valve 1000 change.

In addition, when the second section 22 deviates away from the second interface 30 relative to the first section 21, since the second section 22 can communicate with the valve chamber 10, the moving range of the gasket 200 also follows the second section 21. The offset of the second section 22 is offset, and in the projection of the axis of the first section 21, when the projected plane of the first section 21 is inscribed on the projected plane of the second section 22, the valve body 100 along the first section 21 The projected area on the axis can be minimized, so that the volume of the proportional valve 1000 can be reduced.

As shown in FIGS. 2 and 3 , in some embodiments of the present invention, the inner peripheral surface of the valve body 100 includes a second stepped surface 80 , and the second stepped surface 80 may extend along the circumferential direction of the valve body 100 and face the first Two interfaces 30, and the second stepped surface 80 is arranged on the side of the first interface 20 close to the second interface 30, the gasket 200 is suitable for moving between the second stepped surface 80 and the second interface 30 to adjust the first interface The opening between 20 and the second interface 30 can provide a certain activity space for the movement of the gasket 200, and the second stepped surface 80 can stop against the gasket 200 so that the first interface 20 and the second interface 30 disconnected.

Specifically, in a normal state, the sealing gasket 200 and the second stepped surface 80 can abut against each other, so that the first port 20 and the second port 30 are disconnected, and at this time, gas cannot pass through the proportional valve 1000 . When the driving assembly is working, the sealing gasket 200 can be driven to move away from the second stepped surface 80 , so that the first port 20 and the second port 30 communicate, so that the gas can pass through the proportional valve 1000 .

In addition, the gasket 200 can move between the second stepped surface 80 and the second interface 30 to adjust the opening between the first interface 20 and the second interface 30, as shown in FIG. 2 , when the second stepped surface 80 It can be offset with the offset of the second section 22, and when the activity space of the gasket 200 remains unchanged, the activity space also offset with the offset of the second section 22, and when moving along the second section 22 In the projection of the axis of one section 21, when the projection of the second section 22 is inscribed in the projection of the first section 21, the projected area of the valve body 100 along the axis of the first section 21 can be reduced to the minimum, therefore, it can be reduced The volume of the proportional valve 1000 realizes thinning and thinning of the proportional valve 1000 .

As shown in FIG. 2 , in some embodiments of the present utility model, the driving assembly includes an electromagnetic driver 310 , a diaphragm 320 and a magnetic member 330 , wherein the electromagnetic driver 310 is connected to the other end of the valve body 100 , and the diaphragm 320 It can be connected with the valve body 100 and close the other end of the valve body 100, the first port 20 and the second port 30 are arranged on the same side of the diaphragm 320, the magnetic part 330 can be connected with the gasket 200, and the magnetic part 330 is suitable for The sealing pad 200 is driven to move under the driving action of the electromagnetic driving member 310 , so that the opening between the first interface 20 and the second interface 30 can be precisely controlled.

Wherein, the connection manner between the electromagnetic driver 310 and the valve body 100 may be threaded connection or the like.

Specifically, when the electromagnetic driving part 310 is in the working state, it can drive the magnetic part 330 to move in the valve body 100, thereby indirectly driving the gasket 200 to move in the valve body 100, so that the gap between the first port 20 and the second port 30 The opening of the valve is changed so that the gas can pass through the proportional valve 1000. When the electromagnetic driver 310 is in a non-working state, the sealing gasket 200 can separate the valve cavity 10 so that the first interface 20 and the second interface 30 are disconnected, and at this time, gas cannot pass through the proportional valve 1000 .

In addition, through the magnitude of the magnetic force generated by the electromagnetic driving part 310, the magnetic part 330 can be subjected to different forces, so that the opening between the first interface 20 and the second interface 30 can be changed to achieve precise control of the opening.

Of course, according to the actual situation, the electromagnetic driving part 310 can generate an attractive force, thereby attracting the magnetic part 330 to realize the change of the opening of the valve body 100, and the electromagnetic driving part 310 can also generate a repulsive force, thereby repelling each other with the magnetic part 330. Realize the change of the opening degree of the valve body 100 .

Secondly, in combination with the foregoing embodiment, as shown in FIG. 2 , the second cover 60 is connected to the other end of the valve body 40, the second cover 60 is provided with a vent hole 61, and the diaphragm 320 is connected to the valve body 100, and The other end of the valve body 100 is closed. Therefore, through the cooperation of the diaphragm 320 and the vent hole 61 , the pressure balance inside and outside the valve body 100 can be maintained while ensuring the sealing performance of the valve body 100 .

As shown in FIG. 2 , in some embodiments of the present utility model, the drive assembly further includes a first seat 340 and a second seat 350 , the first seat 340 is connected to the gasket 200 , and the second seat 350 passes through the membrane The sheet 320 is plugged into the first seat body 340 , and the second seat body 350 and the first seat body 340 cooperate to clamp and fix the connection diaphragm 320 , so that the first interface 20 and the second interface 30 can be kept in a disconnected state.

Specifically, the diaphragm 320 is indirectly connected to the gasket 200 through the first seat body 340 and the second seat body 350, and the diaphragm 320 can be connected to the valve body 100. When the electromagnetic driver 310 is in a non-working state, the diaphragm 320 has a certain degree of elasticity, which can keep the gasket 200 and the second stepped surface 80 in a state of mutual abutment, so that the first interface 20 and the second interface 30 are disconnected.

In addition, when the electromagnetic driver 310 finishes working, the elasticity of the diaphragm 320 can make the gasket 200 stop against the second stepped surface 80 again, so as to disconnect the first interface 20 and the second interface 30 .

Of course, according to actual needs, it can also be configured that the second base body 350 is plugged outside the first base body 340 through the diaphragm 320 .

As shown in Figure 2, in some embodiments of the present utility model, the magnetic member 330 is sleeved on the second base body 350, and is clamped and fixed by the first base body 340 and the second base body 350, which can improve the sealing gasket The connection stability between 200 and magnetic member 330.

Specifically, when the electromagnetic driving part 310 works, the magnetic part 330 can be driven to move in the valve body 100, because the magnetic part 330 is sleeved on the second seat body 350, and is clamped by the first seat body 340 and the second seat body. Therefore, the electromagnetic driver 310 can indirectly drive the gasket 200 to move in the valve body 100 to change the opening between the first port 20 and the second port 30 , so that the air flow passes through the proportional valve 1000 .

In addition, the stable connection between the magnetic part 330 and the gasket 200 through the first seat body 340 and the second seat body 350 can improve the stability of the force transmission between the magnetic part 330 and the gasket 200 and ensure the opening of the valve body 100 control.

As shown in FIG. 2 , in some embodiments of the present invention, the axis of the electromagnetic driver 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 proportional valve 1000 in operation.

Wherein, the axis of the electromagnetic driver 310 extends along the axial direction of the valve body 100, that is, the direction in which the electromagnetic driver 310 generates magnetic force is the axial direction of the valve body 100. Therefore, when the electromagnetic driver 310 drives the magnetic member 330, The magnetic member 330 can be moved along the axial direction of the valve body 100 to indirectly drive the gasket 200 to control the opening of the valve body 100 and ensure the stability of the proportional valve 1000 in operation.

As shown in FIG. 1 , FIG. 2 and FIG. 7 , in some embodiments of the present utility model, the proportional valve 1000 further includes a first connecting pipe 400 and a second connecting pipe 500 , and the first connecting pipe 400 is plugged into the second connecting pipe of the first interface 20 A section 21 , the second connecting pipe 500 is plugged into the second interface 30 . Wherein, in combination with the foregoing embodiments, when the first connecting pipe 400 is plugged into the first segment 21 of the first interface 20, the first stepped surface 70 can stop against the first connecting pipe 400, so that the first connecting pipe 400 can extend into a predetermined length to ensure the passage of the first connecting pipe 400. The flow rate of the proportional valve 1000 is not lower than a predetermined value.

As shown in FIG. 2, in some embodiments of the present invention, at least one of the first connecting pipe 400 and the second connecting pipe 500 includes a pipe body and a first flange 600, and the first flange 600 protrudes from the pipe body. The outer peripheral surface of the part is used for positioning the sealing ring 800 , which can ensure the sealing performance of the connection between the first connecting pipe 400 and the second connecting pipe 500 and the valve body 100 .

Wherein, the first adapter 400 may include a pipe body and a first flange 600, the second adapter 500 may include a pipe body and a first flange 600, the first adapter 400 and the second adapter 500 may include a pipe body and a second flange 600 A flange 600, the following will be described by taking the first connecting pipe 400 and the second connecting pipe 500 including the pipe body and the first flange 600 as an example:

Specifically, the sealing ring 800 can be sleeved on the first joint 400 close to the first interface 20, and the second joint 500 is close to the side of the second joint 30, so that the first flange 600 can position the sealing ring 800, that is, when When the first adapter 400 is inserted into the first interface 20 and the second adapter 500 is inserted into the second interface 30, the first flange 600 can stop the sealing ring 800 to prevent the sealing ring 800 from the first adapter 400 and the second interface 30. The other side of the second connecting pipe 500 falls off, so that the sealing ring 800 can improve the sealing performance of the proportional valve 1000 .

In addition, the inner diameter of the sealing ring 800 can be smaller than the outer diameter of the first connecting pipe 400 and the second connecting pipe 500. In other words, when the sealing ring 800 can be matched with the first connecting pipe 400 and the second connecting pipe 500, the sealing ring 800 will be squeezed, thereby The contact area between the sealing ring 800 and the first connecting pipe 400 and the second connecting pipe 500 can be increased to improve the sealing performance of the proportional valve 1000 .

Similarly, the outer diameter of the sealing ring 800 can be larger than the inner diameter of the first interface 20 and the second interface 30, in other words, when the sealing ring 800 can be matched with the first interface 20 and the second interface 30, the sealing ring 800 will be squeezed, Therefore, the contact area between the sealing ring 800 and the first port 20 and the second port 30 can be increased to improve the sealing performance of the proportional valve 1000 .

Therefore, the first connecting pipe 400 and the second connecting pipe 500 can be quickly plugged on the valve body 100 to improve the installation efficiency of the proportional valve 1000 and at the same time ensure good sealing performance of the proportional valve 1000 .

As shown in FIG. 2 , in some embodiments of the present utility model, the adapter further includes a second flange 700 , the second flange 700 is opposite to the first flange 600 , and the first flange 600 and the second flange 700 cooperate An annular groove for accommodating the sealing ring 800 is formed, wherein the surface of the second flange 700 facing away from the first flange 600 is configured to protrude relative to the outer peripheral surface of the pipe body in a direction away from the first flange 600 The height of the guide slope gradually decreases, so the setting of the sealing ring 800 can be fixed, and the guide slope can also be provided for the connecting pipe, so as to facilitate the insertion of the connecting pipe.

In some embodiments of the present utility model, the connecting pipe is integrally formed, which can simplify the installation steps of the proportional valve 1000 , ensure the structural strength of the connecting pipe, and improve the durability of the proportional valve 1000 .

As shown in Figures 1 and 7, according to a gas appliance in an embodiment of the present invention, the gas appliance includes a proportional valve 1000 in any one of the above embodiments, and the second section 22 of the proportional valve 1000 can be compared to The first section 21 is shifted away from the second port 30, so that the moving space of the sealing gasket 200 inside the proportional valve 1000 is shifted accordingly, and the projected area of the proportional valve 1000 on the axis along the first section 21 is reduced. , so that the volume of the proportional valve 1000 as a whole is reduced, and finally the layout space inside the gas equipment can be saved.

In addition, the proportional valve 1000 can be screwed and/or buckled connected with the gas equipment, so as to strengthen the connection strength between the proportional valve 1000 and the gas equipment.

According to some specific examples of the present utility model, 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 driver 310) is connected to the air outlet (i.e. the second interface 30). ) are set in the same direction, the three are all on the same horizontal plane, and the proportional valve 1000 and the bottom shell of the complete machine (ie gas equipment) are set horizontally. The thickness of the proportional valve 1000 is not more than 18mm, and other components matching the proportional valve 1000 are made smaller accordingly, reducing the overall volume of the proportional valve 1000 while ensuring the strength.

According to some specific examples of the present invention, the bottom of the proportional valve 1000 is provided with buckles and screw holes, and the bottom shell of the complete machine (i.e. gas equipment) can be provided with openings and screw fixing holes. When the proportional valve 1000 is fixed, The buckle can be passed through the opening first, and then pushed in horizontally so that the screw holes are aligned, and the proportional valve 1000 is fixed on the bottom case by fastening the screws.

According to some specific examples of the present utility model, the cross-sectional diameter of the plastic upper seat (ie, the second seat body 350) is smaller than the cross-sectional diameter of the plastic lower seat (ie, the first seat body 340), and the plastic upper seat (ie, the second seat body 350) passes through The diaphragm 320 and the magnet (i.e. the magnetic part 330) are inserted into the plastic lower seat (i.e. the first seat body 340), and the magnet (i.e. the magnetic part 330) does not need to occupy the plastic upper seat (i.e. the second seat body 350) and the upper cover (i.e. The space between the second cover body 60) greatly reduces the height of the upper cover (ie, the second cover body 60), and reduces the volume of the proportional valve 1000 as a whole.

According to some specific examples of the present utility model, 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 both quick-plug structures, which avoid the air leakage problem that is easy to occur when the tube is twisted, and The installation efficiency is greatly improved. The air inlet channel is a parallel core-pulling structure, and the simple design of the mold can be realized for double rings and above, without the need for post-processing drilling. The central axis of the air intake pipe (i.e. the first connecting pipe 400) and the central axis of the air intake passage (i.e. the first interface 20) of the valve body 100 are misaligned, and the total length of the air outlet direction is reduced when the area of the flow passage is satisfied. The volume of the proportional valve 1000 is reduced.

According to some specific examples of the present utility model, the working principle of the proportional valve 1000 is as follows: firstly, the gas enters the cavity of the valve body 100 (ie, valve cavity) 10) In the interior, when the coil assembly (ie, the electromagnetic drive part 310) receives the current signal, the soft magnetic rod generates a magnetic force, which repels magnetically with the magnet below (ie, the magnetic part 330), and the plastic lower seat (ie, the first seat body) 340) and the ball valve (i.e. the gasket 200) formed by the sealing rubber part will move downward, and the gas will enter the second chamber from the first chamber, and then enter the air pipe assembly (i.e. the second connecting pipe) at the end of the gas outlet (i.e. the second interface 30) 500) output.

According to some specific examples of the present utility model, the protrusions of the trachea assembly (that is, the first connecting pipe 400 and the second connecting pipe 500) can only be kept on the right side, and the left side can be canceled, or there is an inclined surface, which is convenient for the sealing ring 800 to gradually expand and slide. into the corresponding position. The sealing surface can accommodate one or more sealing rings 800 .

According to some specific examples of the present utility model, the inner diameter of the sealing ring 800 is smaller than the outer diameter of the sealing surface of the trachea assembly (i.e., the second connecting pipe 500), and the outer diameter of the sealing ring 800 is larger than the air outlet of the valve body 100 assembly (i.e., the second interface 30 ) inner diameter. Squeeze and deform with the two to form a sealing surface.

According to some specific examples of the utility model, a kind of ultra-thin structure is proposed, the air inlet passage (i.e. the first interface 20), the air outlet passage (i.e. the second interface 30) and the proportional valve 1000 are all on the same horizontal plane, and the overall thickness does not exceed 18mm; the air intake channel (ie the first interface 20) and the gas outlet channel (ie the second interface 30) adopt a quick-plug structure, which improves the efficiency of the whole machine taking over while ensuring the area of the gas channel, and sets a snap connection to connect with the whole The assembly of the machine bottom case is convenient; the proportional valve 1000 has a high degree of modularization and strong compatibility, which can realize the setting of double-loop, triple-loop and above passages, and the control between each loop can be freely combined.

In the description of the present utility model, it should be understood that the terms "length", "thickness", "upper", "lower", "front", "rear", "left", "right", "horizontal", The orientations or positional relationships indicated by "top", "bottom", "inner", "outer", "axial" and "circumferential" are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention. Novel and simplified descriptions do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be construed as limiting the utility model.

In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of these features. In the description of the present utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

In this utility model, unless otherwise specified and limited, terms such as "installation", "connection", "connection" and "fixation" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrated; may be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediary, and may be an internal communication between two elements or an interactive relationship between two elements, unless otherwise stated Clearly defined. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present utility model according to specific situations.

In the present invention, unless otherwise clearly specified and limited, the first feature may be in direct contact with the first feature or the first feature and the second feature through an intermediary indirect contact. Moreover, "above", "above" and "above" the first feature on the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. "Below", "beneath" and "beneath" the first feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is less horizontally than the second feature.

In the description of this specification, descriptions with reference to the terms "one embodiment", "some embodiments", "example", "specific examples", or "some examples" mean that specific features described in connection with the embodiment or example , structures, materials or features are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the described specific features, structures, materials or characteristics may be combined in any suitable manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine different embodiments or examples and features of different embodiments or examples described in this specification without conflicting with each other.

Although the embodiments of the present invention have been shown and described above, it can be understood that the above-mentioned embodiments are exemplary and should not be construed as limitations of the present invention, and those skilled in the art are within the scope of the present invention. Variations, modifications, substitutions and variations can be made to the above-described embodiments.

Claims (18)

1. A valve body of a proportional valve, characterized in that the valve body has a valve chamber (10), a first interface (20) and a second interface (30), the first interface (20) is arranged on the peripheral wall of the valve body, and the second interface (30) is arranged at one end of the valve body, the first interface (20) and the second interface (30) can be communicated through the valve chamber (10), the first interface (20) comprises a first section (21) and a second section (22), the first section (21) is communicated with the second section (22), and the second section (22) is communicated with the valve chamber (10), the second section (22) is closer to the valve chamber (10) than the first section (21), and the second section (22) is offset relative to the first section (21) in a direction away from the second interface (30).

2. Valve body of a proportional valve according to claim 1, characterized in that the axis of the second section (22) is offset in a direction away from the second port (30) compared to the axis of the first section (21).

3. The valve body of the proportional valve according to claim 2, wherein the inner peripheral surface of the first port (20) further comprises a first step surface (70), the first step surface (70) is connected between the inner peripheral surface of the first section (21) and the inner peripheral surface of the second section (22), a sink groove (23) is formed on the first step surface (70), the opening of the sink groove (23) is opposite to the first section (21), and the sink groove (23) is communicated with the second section (22).

4. The valve body of the proportional valve according to claim 3, wherein an inner circumferential surface of the sink groove (23) is connected to an inner circumferential surface of the second section (22), and an inner bottom surface of the sink groove (23) is lower than the first step surface (70) to communicate the sink groove (23) with the second section (22).

5. Valve body of a proportional valve according to claim 2, characterized in that the second section (22), in projection on the axis of the first section (21), falls within the coverage of the first section (21);

and/or the axis of the first section (21) and the axis of the second section (22) are parallel to each other.

6. The valve body of a proportional valve according to any of claims 1-5, comprising:

the valve body (40), construct the said valve chamber (10) in the said valve body (40) and both ends are open, the said first interface (20) is set in the peripheral wall of the said valve body (40);

a first cover (50), wherein the first cover (50) is connected to one end of the valve main body (40), and the second port (30) is arranged on the first cover (50);

a second cover body (60), the second cover body (60) being connected to the other end of the valve main body (40).

7. The valve body of the proportional valve according to claim 6, wherein the second cover body (60) is provided with a vent hole (61).

8. Valve body of a proportional valve according to any of claims 1 to 5, characterized in that the axis of the first section (21), the axis of the second section (22) and the axis of the second port (30) are located on the same plane;

and/or the axis of the first section (21) and the axis of the second section (22) are collinear, and the size of the valve body along the thickness direction is less than or equal to 18mm, wherein the thickness direction is perpendicular to the axis of the first section (21), the axis of the second section (22) and the axis of the second interface (30).

9. A proportional valve, comprising:

the valve body of any one of claims 1-8;

the sealing gasket (200) is arranged in the valve body and can move so as to change the opening degree between the first port (20) and the second port (30);

the driving assembly is connected with the sealing gasket (200) to drive the sealing gasket (200) to move.

10. The proportioning valve of claim 9 wherein an inner peripheral surface of said valve body includes a second step surface (80), said second step surface (80) extending in a circumferential direction of said valve body and facing said second port (30), and said second step surface (80) being provided on a side of said first port (20) adjacent to said second port (30), said packing (200) being adapted to move between said second step surface (80) and said second port (30) to adjust an opening degree between said first port (20) and said second port (30).

11. The proportioning valve of claim 9 wherein said drive assembly includes:

an electromagnetic driving member (310), wherein the electromagnetic driving member (310) is connected to the other end of the valve body;

the diaphragm (320) is connected with the valve body and seals the other end of the valve body, and the first interface (20) and the second interface (30) are arranged on the same side of the diaphragm (320);

the magnetic part (330), the magnetic part (330) with sealed the pad (200) link to each other, just the magnetic part (330) are suitable for under the drive effect of electromagnetic drive spare (310) drive sealed pad (200) and remove.

12. The proportioning valve of claim 11 wherein said drive assembly further comprises:

the first seat body (340), the first seat body (340) is connected with the sealing gasket (200);

the second seat body (350), the second seat body (350) passes through the diaphragm (320) and is inserted into the first seat body (340), and the second seat body (350) and the first seat body (340) are matched, clamped and fixedly connected with the diaphragm (320).

13. The proportioning valve of claim 12 wherein said magnetic member (330) is sleeved on said second seat (350) and is held and fixed by said first seat (340) and said second seat (350).

14. The proportioning valve of claim 11 wherein an axis of the electromagnetic drive (310) extends in an axial direction of the valve body and is disposed opposite the second port (30).

15. The proportioning valve of claim 11 further comprising:

a first connecting pipe (400), wherein the first connecting pipe (400) is connected to a first section (21) of the first connector (20) in an inserting mode;

a second connection pipe (500), wherein the second connection pipe (500) is connected to the second interface (30) in an inserting mode.

16. The proportioning valve of claim 15 wherein at least one of the first and second nozzles (400, 500) comprises:

a body portion;

a first flange (600), the first flange (600) protruding the outer circumferential surface of the body portion for positioning a seal ring (800).

17. The proportioning valve of claim 16 wherein,

the adapter further comprises a second flange (700), the second flange (700) is opposite to the first flange (600), the first flange (600) and the second flange (700) are matched to form an annular groove for placing a sealing ring (800), wherein the surface of the second flange (700) facing away from the first flange (600) is configured into a guide inclined surface with gradually reduced height relative to the projection of the outer periphery of the pipe body in the direction away from the first flange (600);

and/or the adapter tube is integrally formed.

18. A gas-fired apparatus, characterized in that it comprises a proportioning valve according to any of claims 9-17.

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