Control valve capable of realizing flow regulation through remote control

Abstract

The utility model relates to a control valve capable of realizing flow regulation through remote control. Comprising a valve body B, the valve body B is provided with a first cavity communicated with the air outlet, a first air outlet channel communicated with the first cavity, an air outlet cavity communicated with the other end of the first air outlet channel, an air outlet connector communicated with the air outlet cavity and a second air outlet channel communicated with the first cavity and the first air outlet channel. The minimum flow screw is arranged in the second gas outlet channel and is used for controlling the flow of the fuel gas reaching the first gas outlet channel through the second gas outlet channel; the remote control rotary pressing type controller comprises a second electromagnetic valve, a circular sealing gasket, a rotary pressing rod structure and a movable seat sealing assembly; the movable seat sealing assembly achieves three states of sealing the upper end of the first air outlet channel, sealing the lower end of the first air outlet channel and releasing the two ends of the first air outlet channel under the action of the rotary pressing rod structure and the second electromagnetic valve.

Description

Technical Field

[0001] The utility model relates to a gas control valve, more specifically, a control valve which can remotely control and adjust the flow rate. Background Art

[0002] At present, the control of gas in the combustion system is generally achieved by using a control valve. Installing a solenoid valve on the control valve can only be used to control the opening or closing of the valve channel, and cannot achieve flow regulation.

[0003] The applicant proposed a design in the previous design (CN2024204849350) that realizes the controllable gas flow rate to achieve two states of large and small fire by the joint action of three solenoid valves. In this design, due to the characteristics of the solenoid valve switch (i.e., two states of either energized or closed), it is necessary to rely on three solenoid valves to realize the gas flow control to achieve the main combustion state of large fire, small fire and closed state, and the cost is relatively high. Utility Model Content

[0004] The present application proposes a control valve for adjusting flow rates, the purpose of which is to provide a relatively low-cost control valve to achieve remote control and adjustable air intake flow rate to achieve three states: high fire, low fire and off.

[0005] In order to achieve the above technical objectives, this application adopts the following technical solutions:

[0006] A control valve capable of adjusting flow rate by remote control comprises a valve body A, a valve seat arranged at the bottom of the valve body A, a first solenoid valve connected to the valve seat, a valve core arranged in the valve body A and a control knob connected to the valve core, a gas inlet interface and an ODS interface are arranged on one side of the valve body A and an air outlet is arranged on the other side of the valve body A, and the valve core is provided with an ODS air outlet and an air inlet; further comprising: a valve body B, the valve body B is provided with a first chamber connected to the air outlet, a first air outlet channel connected to the first chamber, an air outlet chamber connected to the other end of the first air outlet channel, an air outlet interface connected to the air outlet chamber, and a second air outlet channel connected to the first chamber and the first air outlet channel; a minimum flow screw arranged in the second air outlet channel to control the flow rate of the gas reaching the first air outlet channel via the second air outlet channel; a remote control rotary press type controller, comprising: A second solenoid valve, which is installed on the valve body B and is directly opposite to the top of the first air outlet channel; the solenoid valve is controlled by a remote control; a circular sealing gasket, which is sealed and fixed on the valve body B by a fixing part and is located below the second solenoid valve; a rotating pressure rod structure, which is arranged below the circular sealing gasket, and the rotating pressure rod structure is controlled by the telescopic rod of the second solenoid valve; a movable seat sealing assembly, which is connected to the bottom of the rotating pressure rod structure and is located in the first air outlet channel; the movable seat sealing assembly, under the action of the rotating pressure rod structure and the second solenoid valve, respectively realizes three states of sealing the upper end of the first air outlet channel, sealing the lower end of the first air outlet channel and releasing both ends of the first air outlet channel; a fixed seat, which is sealingly connected to the valve body B and is located below the first air outlet channel, the fixed seat is connected to the bottom end of the movable seat sealing assembly, and a reset spring is provided between the fixed seat and the movable seat sealing assembly.

[0007] Preferably, the rotating pressure rod structure includes a first pressure rod, a second pressure rod and a pressure rod seat covered on the outside, wherein: the lower end surface of the first pressure rod is provided with evenly distributed teeth, and the side of the first pressure rod is evenly provided with positioning blocks; the side of the second pressure rod is evenly provided with spaced tooth grooves and sliding grooves, and the side of the tooth groove is set as an inclined guide edge; the side of the pressure rod seat is evenly provided with clamping strips.

[0008] Preferably, the movable seat sealing assembly includes a first movable seat sealing assembly and a second movable seat sealing assembly connected together; the first movable seat sealing assembly includes a first sealing gasket for sealing the upper end of the first air outlet channel, and the second movable seat sealing assembly includes a second sealing gasket for sealing the lower end of the first air outlet channel.

[0009] Preferably, the upper end surface of the first sealing gasket is provided with a connecting rod which is inserted into the lower end of the rotating pressure rod structure; the lower end surface of the first sealing gasket is provided with a cross-shaped first supporting plate, and a protruding screw is provided in the middle of the first supporting plate.

[0010] Preferably, the upper end face of the second sealing gasket is provided with a cross-shaped second support plate, and the middle part of the second support plate is provided with a hollow connecting hole with an internal thread for the screw to be screwed on; the lower end face of the second sealing gasket is provided with a push rod, the push rod is inserted into the fixed seat, and the return spring is sleeved on the push rod.

[0011] The present application further proposes a control valve that can remotely adjust the flow rate, including a valve body A, a valve seat arranged at the bottom of the valve body A, a first solenoid valve connected to the valve seat, a valve core arranged in the valve body A and a control knob connected to the valve core, one side of the valve body A is provided with a gas inlet interface and an ODS interface and the other side of the valve body A is provided with an air outlet, and the valve core is provided with an ODS air outlet and an air inlet; it also includes: a valve body C, on which is provided a second chamber adjacent to the air outlet but sealed and isolated; a third chamber arranged below the second chamber and connected to the air outlet; a third air outlet channel connected to the third chamber; a fourth chamber connected to the third air outlet channel; a fourth air outlet channel connecting the fourth chamber, the third air outlet channel and the second chamber, wherein the third air outlet channel is located at the upper end of the fourth chamber; an air outlet connection hole connected to the second chamber; a fifth air outlet channel connecting the third chamber and the fourth chamber; a minimum flow screw, arranged in the third air outlet channel to control the flow of gas going out through the third air outlet channel; a remote control rotary button A pressure-type controller, comprising: a second solenoid valve, which is installed on the valve body B and is directly opposite to the top of the fourth air outlet channel; the solenoid valve is controlled by a remote controller; a circular sealing gasket, which is sealed and fixed on the valve body C by a fixing member and is located below the second solenoid valve; a rotating pressure rod structure, which is arranged below the circular sealing gasket, and the rotating pressure rod structure is controlled by the telescopic rod of the second solenoid valve; a movable seat sealing assembly, which is connected to the bottom of the rotating pressure rod structure and is located in the fourth air outlet channel; the movable seat sealing assembly, under the action of the rotating pressure rod structure and the second solenoid valve, respectively seals the upper end of the fourth air outlet channel; seals the lower end of the fourth air outlet channel without sealing the connection between the third air outlet channel and the fourth air outlet channel; and releases the two ends of the fourth air outlet channel so that the third air outlet channel and the fourth chamber are both connected to the fourth air outlet channel to the second chamber in three states; a fixed seat, which is sealed and connected to the valve body C and is located below the fourth air outlet channel, the fixed seat is connected to the bottom end of the movable seat sealing assembly, and a reset spring is provided between the fixed seat and the movable seat.

[0012] Preferably, the rotating pressure rod structure includes a first pressure rod, a second pressure rod and a pressure rod seat covered on the outside, wherein: the lower end surface of the first pressure rod is provided with evenly distributed teeth, and the side of the first pressure rod is evenly provided with positioning blocks; the side of the second pressure rod is evenly provided with spaced tooth grooves and sliding grooves, and the side of the tooth groove is set as an inclined guide edge; the side of the pressure rod seat is evenly provided with clamping strips.

[0013] Preferably, the movable seat sealing assembly includes a first movable seat sealing assembly and a second movable seat sealing assembly connected together; the first movable seat sealing assembly includes a first sealing gasket for sealing the upper end of the fourth air outlet channel, and the second movable seat sealing assembly includes a second sealing gasket for sealing the lower end of the fourth air outlet channel.

[0014] Preferably, the upper end surface of the first sealing gasket is provided with a connecting rod which is inserted into the lower end of the rotating pressure rod structure; the lower end surface of the first sealing gasket is provided with a cross-shaped first supporting plate, and a protruding screw is provided in the middle of the first supporting plate.

[0015] Preferably, the upper end face of the second sealing gasket is provided with a cross-shaped second support plate, and the middle part of the second support plate is provided with a hollow connecting hole with an internal thread for the screw to be screwed on; the lower end face of the second sealing gasket is provided with a push rod, the push rod is inserted into the fixed seat, and the return spring is sleeved on the push rod.

[0016] In summary, compared with the prior art, the present application achieves three usage states of high fire, low fire and off by adding a remote control rotary push-type controller in combination with the structure of valve body B and the minimum flow screw, thereby meeting consumer needs while reducing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural cross-sectional view of the first embodiment of the present application;

[0018] Figure 2 It is a structural cross-sectional view of the first embodiment in a small flame working state;

[0019] Figure 3 It is a structural cross-sectional view of the main burner of the first embodiment in a high-fire working state;

[0020] Figure 4 It is a structural cross-sectional view of the main burner of the first embodiment in a low-fire working state;

[0021] Figure 5 It is a structural cross-sectional view of the main burner of the first embodiment in a closed state;

[0022] Figure 6 is another cross-sectional view of the first embodiment;

[0023] Figure 7 It is a structural cross-sectional view of the second embodiment of the present application;

[0024] Figure 8 It is a structural cross-sectional view of the second embodiment in a small flame working state;

[0025] Fig. 9 It is a structural cross-sectional view of the main burner of the second embodiment in a high-fire working state;

[0026] Fig.10 It is a structural cross-sectional view of the main burner of the second embodiment in a low-fire working state;

[0027] Fig.11 This is a structural cross-sectional view of the main burner of the second embodiment in a closed state. DETAILED DESCRIPTION

[0028] The technical solution of the utility model is further specifically described below through embodiments and in conjunction with the accompanying drawings.

[0029] First embodiment:

[0030] See also Figures 1 to 6 The figure is a schematic diagram of the structure of the first embodiment of the present application. In this embodiment, the present application mainly includes valve body A, valve body B, minimum flow screw and remote control rotary push-type controller and other main structures. Please refer to the figure and the following description for the specific structure.

[0031] like Figure 1 As shown, in the first embodiment, a gas inlet 101 and an ODS interface 102 are provided on one side of the valve body A1, and an outlet 103 is provided on the other side of the valve body A1. The valve core 3 is arranged in the hollow interior of the valve body A1, and the upper end of the valve core 3 is sealed and fixed by a valve cover 4, and the valve core 3 is driven to rotate by a control knob 5. The valve core 3 is provided with an ODS outlet hole corresponding to the ODS interface 102 and an inlet hole corresponding to the outlet 103. A valve seat 2 is provided at the bottom of the valve body A1. The first solenoid valve 6 is arranged in the valve body A1 and is located between the valve seat 2 and the bottom of the valve core 3. The first solenoid valve 6 opens or closes the passage for the gas to reach the valve core 3 through the gas inlet 101.

[0032] The valve body B7 is connected to the valve body A1 by fasteners, and the connection is sealed by a seal. The valve body B7 is provided with a first chamber 71, a first air outlet channel 72, an air outlet cavity 73, an air outlet interface 74 and a second air outlet channel 75. The first chamber 71 is connected to the air outlet 103 of the valve body A1. The first air outlet channel 72 is connected to the first chamber 71. The air outlet cavity 73 is provided below the first air outlet channel 72, is connected to the first air outlet channel 72, and an air outlet interface 74 is provided on one side of the air outlet cavity 73. One end of the second air outlet channel 75 is provided on the first chamber 71, and the other end of the second air outlet channel 75 is provided on the side wall of the first air outlet channel 72, and the second air outlet channel 75 connects the first chamber 71 and the first air outlet channel 72.

[0033] The minimum flow screw 8 is arranged in the second gas outlet channel 75, and the minimum flow screw 8 can control the flow rate of the gas reaching the first gas outlet channel 72 through the second gas outlet channel 75, ensuring that a single-flow gas supply is always maintained during the switching process.

[0034] The remote control rotary push-type controller includes a second solenoid valve, a circular sealing gasket, a rotary pressure rod structure, a movable seat sealing assembly and a fixed seat. The rotary control push-type controller is used to assist the valve body B to complete the switching of the flow channel and achieve different combustion states. Figure 1 and Figure 6 As shown:

[0035] The second solenoid valve 91 is installed on the valve body B7 and is directly opposite to the top of the first air outlet channel 72. The solenoid valve 91 is controlled by a remote controller. The circular sealing gasket 92 is limited by a clamping nut 93 and a clamping gasket 94 below the second solenoid valve 91 to seal the valve body B7. A rotating pressure rod structure 95 is provided below the circular sealing gasket 92, and the telescopic rod of the second solenoid valve 91 acts on the rotating pressure rod structure 95 through the circular sealing gasket 92. The movable seat sealing assembly 96 is connected below the rotating pressure rod structure 95 and is located in the first air outlet channel 72. Under the action of the rotating pressure rod structure 95 and the second solenoid valve 91, the movable seat sealing assembly 96 respectively realizes three states of sealing the upper end of the first air outlet channel 72, sealing the lower end of the first air outlet channel 72 and releasing both ends of the first air outlet channel 72. The fixed seat 97 is sealingly connected to the valve body B7 and is located below the first air outlet channel 72. The fixed seat 97 is connected to the bottom end of the movable seat sealing assembly 96, and a sealing gasket 98 and a return spring 99 are provided between the fixed seat 97 and the movable seat sealing assembly 96.

[0036] like Figure 6As shown, the rotating pressure rod structure 95 includes a first pressure rod 951, a second pressure rod 952 and a pressure rod seat 953 wrapped on the outside. Among them: the lower end surface of the first pressure rod 951 is provided with uniformly arranged teeth 9511, and the side of the first pressure rod 951 is uniformly arranged with a clamping block 952. The side of the second pressure rod 952 is uniformly arranged with spaced tooth grooves 9521 and slide grooves 9522, and the side of the tooth groove 9521 is set as an inclined guide edge. The existence of the inclined guide edge can guide the second pressure rod to rotate relative to the first pressure rod. The side of the pressure rod seat 953 is uniformly arranged with a clamping strip 9531. Preferably, the bottom edge of the clamping strip 9531 is also set at the inclined edge, so as to cooperate with the inclined guide edge to complete the state switching. The clamping block 952 clamps the clamping strip 9531, so that the first pressure rod moves along the direction of the clamping strip 9531 without disengaging. The movable seat sealing assembly 96 includes a first movable seat sealing assembly 961 and a second movable seat sealing assembly 962. The first movable seat sealing assembly 961 includes a first sealing gasket 9611 for sealing the upper end of the first air outlet channel 72, and the second movable seat sealing assembly 962 includes a second sealing gasket 9621 for sealing the lower end of the first air outlet channel 72. A connecting rod 9612 is provided on the upper end surface of the first sealing gasket 9611, and the connecting rod 9612 is inserted into the lower end of the rotating pressure rod structure 95. A cross-shaped first support plate 9613 is provided on the lower end surface of the first sealing gasket 9611, and a protruding screw 9614 is provided in the middle of the first support plate 9613. A cross-shaped second support plate 9622 is provided on the upper end surface of the second sealing gasket 9621, and a hollow connection hole with internal threads is provided in the middle of the second support plate 9622 for screwing the screw 9614. A push rod 9623 is provided on the lower end surface of the second sealing gasket 9621 . The push rod 9623 is inserted into the fixing seat 97 , and the return spring 99 is sleeved on the push rod 9623 .

[0037] The control of this embodiment is a cycle of high fire (initial state) - low fire - off - low fire - high fire - low fire - off - low fire - high fire. The working principle is explained as follows with the diagram:

[0038] State 1, initial state, that is, the main burner high fire state:

[0039] See also Figure 1 The figure shows a structural cross-sectional view of the first embodiment of the present application, which is also an initial state view. At this time, the ODS air outlet and the air inlet of the valve core 3 are not connected to the ODS interface 102 and the air outlet 103. The first solenoid valve 6 blocks the gas inlet 101. The second solenoid valve 91 is not powered and is in an initial state, that is, a high fire state. The telescopic rod of the second solenoid valve 91 does not push against the first pressure rod 951, and the bottom of the clamping strip 9531 of the pressure rod seat 953 is stuck in a tooth groove 9521, and the movable seat sealing assembly 96 releases the upper and lower ends of the first air outlet channel 72 and is positioned in the middle.

[0040] State 2, small flame state:

[0041] See also Figure 2 As shown, rotating the control knob 5 drives the valve core 3 to rotate, so that the ODS outlet is connected to the ODS interface 102, the first solenoid valve 6 opens the bottom end of the valve core 3, and the gas enters the ODS interface 102 from the valve core 3 to supply the ODS, which is in a small flame working state.

[0042] State three, main burner low fire state:

[0043] After the small flame is in working state, ignite the main burner and switch to Figure 4 The main burner is in low-fire state as shown. At this time, the second solenoid valve is energized for the first time, the telescopic rod of the second solenoid valve 91 moves downward, and the first pressure rod 951 moves downward under the pressure of the telescopic rod. The teeth of the first pressure rod are pressed into the tooth grooves of the second pressure rod, driving the second pressure rod 952 to compress the reset spring 99 and move downward. The first sealing gasket 9611 on the first movable seat sealing assembly 961 moves downward accordingly, sealing the upper end of the first air outlet channel 72, and the second sealing gasket 9621 of the second movable seat sealing assembly 962 also moves downward accordingly, and the movable seat sealing assembly 96 is located at the lowest position, and then the lower end of the first air outlet channel 72 is opened. The gas enters the first air outlet channel 72 from the first chamber 71 through the second air outlet channel 75, and finally flows out from the lower end of the first air outlet channel 72. At this time, the gas supply of the main burner is controlled by the minimum flow screw 8.

[0044] State 4, main burner off state:

[0045] After the main burner is in low-fire state, the second solenoid valve 91 is powered off for the first time, and the telescopic rod of the second solenoid valve 91 moves upward. Due to the effect of the inclined guide edge, the second pressure rod rotates relative to the first pressure rod, and the clamping strip 9531 of the pressure rod seat 953 is aligned with the slide groove 9522 and moves down along the slide groove 9522. The second pressure rod is lifted due to the restoring force of the reset spring 99, and the first pressure rod 951 moves upward. At this time, the first sealing gasket 9611 on the first movable seat sealing assembly 961 opens the upper end of the first air outlet channel 72, and the second sealing gasket 9621 of the second movable seat sealing assembly 962 seals the lower end of the first air outlet channel 72. The movable seat sealing assembly 96 is at the highest position, such as Figure 5 As shown, the gas cannot pass through the first gas outlet passage 72 .

[0046] State 5, main burner low fire state:

[0047] Following state four (main burner closed state), the second solenoid valve 91 is energized for the second time. The telescopic rod of the second solenoid valve 91 moves downward, and the first pressure rod 951 moves downward under the pressure of the telescopic rod. The teeth of the first pressure rod are pressed into the tooth grooves of the second pressure rod, driving the second pressure rod 952 to compress the reset spring 99 and move downward. The first sealing gasket 9611 on the first movable seat sealing assembly 961 moves downward accordingly, sealing the upper end of the first air outlet channel 72, and the second sealing gasket 9621 of the second movable seat sealing assembly 962 also moves downward accordingly, and the movable seat sealing assembly 96 is located at the lowest position, and then the lower end of the first air outlet channel 72 is opened. The gas enters the first air outlet channel 72 from the first chamber 71 through the second air outlet channel 75, and finally flows out from the lower end of the first air outlet channel 72. At this time, the gas supply to the main burner is controlled by the minimum flow screw 8.

[0048] State 6, main burner off state:

[0049] After the main burner is in the low-fire state, the second solenoid valve 91 is powered off for the second time. The principle is the same as in state four above, and the main burner is turned off.

[0050] State seven, main burner low fire state:

[0051] The second solenoid valve 91 is energized for the third time, and the principle is the same as in state three or state five above, and the main burner is in a low-fire state.

[0052] State eight, main burner high fire state:

[0053] After state eight, the second solenoid valve 91 is powered off for the third time, and the first pressure rod 951 moves upward under the drive of the telescopic rod and the force of the return spring 99. Due to the effect of the inclined guide edge, the second pressure rod rotates relative to the first pressure rod, and the bottom of the clamping strip 9531 of the pressure rod seat 953 is clamped into the tooth groove 9521, and the movable seat sealing assembly 96 releases the upper and lower ends of the first air outlet channel 72, and the movable seat sealing assembly 96 is in the middle position, as shown in FIG. Figure 3 At this time, the first sealing gasket 9611 on the first movable seat sealing assembly 961 opens the upper end of the first gas outlet channel 72, and the second sealing gasket 9621 of the second movable seat sealing assembly 962 opens the lower end of the first gas outlet channel 72, and the gas enters from the second gas outlet channel 75 and the gas enters from the upper end of the first gas outlet channel 72 at the same time, increasing the flow rate and meeting the high fire requirement of the main burner.

[0054] Second embodiment:

[0055] See also Figure 7-Figure 11 , which is the second embodiment of the present application. The second embodiment includes main structures such as valve body A1, valve body C11, minimum flow screw and remote control rotary push-type controller.

[0056] The valve body A1, the minimum flow screw 8 and the remote control rotary push-type controller 9 are the same as those in the first embodiment, except that the structure of the valve body C11 is different. Figure 7 As shown, a second chamber 111 adjacent to but sealed and isolated from the gas outlet 103 is provided on the valve body C11, and a third chamber 112 is provided below the second chamber 111, wherein the third chamber 112 is connected to the gas outlet 103, and the gas directly enters the third chamber 112 from the gas outlet 103. A third gas outlet channel 113 is provided in the third chamber 112, and the other end of the third gas outlet channel 113 is connected to a fourth chamber 114. A minimum flow screw 8 is provided in the third gas outlet channel 113 to control the gas flow rate flowing through the third gas outlet channel 113. The valve body C11 is provided with a fourth air outlet channel 115, the upper end of which is connected to the second chamber 111, the lower end of which is connected to the fourth chamber 114, and the side of the fourth air outlet channel 115 near the lower end is connected to the other end of the third air outlet channel 113, the third air outlet channel 113 is located at the upper end of the fourth chamber 114, and the upper end of the fourth chamber 114 is sealed without interfering with the smooth flow of the third air outlet channel 113 and the fourth air outlet channel 115. The valve body C11 is also provided with a fifth air outlet channel 116 that is connected to the third chamber 112 and the fourth chamber 114. Figure 7 As shown, in this embodiment, the fifth gas outlet channel 116 is arranged on the side wall of the third gas outlet channel 113 and avoids the minimum flow screw 8. The fifth gas outlet channel 116 ensures that the gas directly enters the fourth chamber 114 from the third chamber 112, thereby ensuring the gas supply to the fourth chamber 114. A gas outlet connection hole 117 is arranged on the other side of the second chamber 111.

[0057] The remote control rotary push-type controller is as described in the first embodiment, and includes components such as a second solenoid valve 91, a circular sealing pad 92, a rotary pressure rod structure, a movable seat sealing assembly 96 and a fixed seat 97. The rotary control push-type controller is used to assist the valve body C to complete the switching of the flow channel and realize different combustion states.

[0058] The working principle of the rotary controlled push-type controller is the same as that of the first embodiment, and the movable seat sealing assembly is controlled by remote control of the second solenoid valve 91 to seal the upper end of the fourth air outlet channel 115; seal the lower end of the fourth air outlet channel 115 without sealing the connection between the third air outlet channel 113 and the fourth air outlet channel 115; and release the two ends of the fourth air outlet channel 115 so that the third air outlet channel 113 and the fourth chamber 114 are both connected to the fourth air outlet channel 115 to the second chamber 111.

[0059] The control of this embodiment is a cycle of high fire (initial state) - off - low fire - off - high fire - off - low fire - off - high fire. The working principle is explained as follows with the diagram:

[0060] State 1, initial state, that is, the main burner high fire state:

[0061] See also Figure 7 The figure shows a structural cross-sectional view of the second embodiment of the present application, which is also an initial state view (main burner high fire state). At this time, the ODS outlet and air inlet of the valve core 3 are not connected to the ODS interface 102 and the air outlet 103. The first solenoid valve 6 blocks the gas inlet 101. The second solenoid valve 91 is not powered and is in the initial state. The telescopic rod of the second solenoid valve 91 does not push against the first pressure rod 951, and the bottom of the clamping strip 9531 of the pressure rod seat 953 is stuck in a tooth groove 9521, and the movable seat sealing assembly 96 releases the upper and lower ends of the first air outlet channel 72 and is positioned in the middle.

[0062] State 2, small flame state:

[0063] See also Figure 8 As shown, rotating the control knob 5 drives the valve core 3 to rotate, so that the ODS outlet is connected to the ODS interface 102, the first solenoid valve 6 opens the bottom end of the valve core 3, and the gas enters the ODS interface 102 from the valve core 3 to supply the ODS, which is in a small flame working state.

[0064] State three, main burner off state:

[0065] When the second solenoid valve 91 is powered on for the first time, the telescopic rod of the second solenoid valve 91 moves downward to push the first pressure rod. Due to the effect of the inclined guide edge, the second pressure rod rotates relative to the first pressure rod, and the first sealing gasket 9611 on the first movable seat sealing assembly 961 seals the upper end of the fourth gas outlet channel 115, so that the gas cannot go out of the fourth gas outlet channel 115. The main burner is in the closed state.

[0066] State 4, main burner low fire state:

[0067] After the main burner is turned off, the second solenoid valve 91 is powered off for the first time, and the switching mode enters Fig.10 The main burner is shown in a low-fire state. The second solenoid valve 91 is powered off for the first time, and the telescopic rod of the second solenoid valve 91 moves upward. Due to the effect of the inclined guide edge, the second pressure rod rotates relative to the first pressure rod. The clamping strip 9531 of the pressure rod seat 953 is aligned with the slide groove 9522 and moves down along the slide groove 9522. The second pressure rod is lifted due to the restoring force of the reset spring 99, and the first pressure rod 951 moves upward. At this time, the first sealing gasket 9611 on the first movable seat sealing assembly 961 opens the upper end of the fourth air outlet channel 115, and the second sealing gasket 9621 of the second movable seat sealing assembly 962 seals the lower end of the fourth air outlet channel 115. The movable seat sealing assembly 96 is at the highest position, and the gas can only enter the fourth air outlet channel 115 from the third air outlet channel 113. The main burner enters a low-fire state.

[0068] State 5, main burner off state:

[0069] The second solenoid valve 91 is energized for the second time, and the telescopic rod of the second solenoid valve 91 moves downward. Due to the effect of the inclined guide edge, the second pressure rod rotates relative to the first pressure rod, and the first sealing gasket 9611 on the first movable seat sealing assembly 961 seals the upper end of the fourth gas outlet channel 115, so that the gas cannot go out of the fourth gas outlet channel 115. The main burner is turned off.

[0070] State 6, main burner high fire state:

[0071] The second solenoid valve 91 is powered off for the second time, the second pressure rod rotates relative to the first pressure rod, the bottom of the clamping strip 9531 of the pressure rod seat 953 is clamped into the tooth groove 9521, the movable seat sealing assembly 96 releases the upper and lower ends of the fourth air outlet channel 72, and the movable seat sealing assembly 96 is in the middle position again. Fig. 9 As shown, the gas enters the second chamber 112 from the third gas outlet channel 113 and the fourth chamber 114 at the same time.

[0072] In summary, by adding a remote control rotary push-type controller in conjunction with the structure of valve body B and the minimum flow screw, three usage states of high fire, low fire and off can be achieved using only two solenoid valves, thereby meeting consumer needs while reducing costs.

[0073] The above-described embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention. Equivalent changes and modifications made to the present invention by those skilled in the art should all fall within the scope of the claims attached to the present invention.

Claims

1. A control valve capable of adjusting flow rate by remote control, comprising a valve body A, a valve seat arranged at the bottom of the valve body A, a first solenoid valve connected to the valve seat, a valve core arranged in the valve body A, and a control knob connected to the valve core, one side of the valve body A is provided with a gas inlet port and an ODS port, and the other side of the valve body A is provided with an air outlet, and the valve core is provided with an ODS air outlet and an air inlet; characterized in that: Also includes: a valve body B, wherein the valve body B is provided with a first chamber connected to the air outlet, a first air outlet channel connected to the first chamber, an air outlet chamber connected to the other end of the first air outlet channel, an air outlet interface connected to the air outlet chamber, and a second air outlet channel connected to the first chamber and the first air outlet channel; a minimum flow screw, disposed in the second gas outlet channel to control the flow of the gas reaching the first gas outlet channel through the second gas outlet channel; A remote control rotary push-type controller, comprising: a second solenoid valve, which is installed on the valve body B and directly above the first air outlet channel; the solenoid valve is controlled by a remote controller; A circular sealing gasket, which is sealed and fixed on the valve body B through a fixing member and is located below the second solenoid valve; A rotating pressure rod structure, which is arranged below the circular sealing pad, and the rotating pressure rod structure is controlled by the telescopic rod of the second solenoid valve; A movable seat sealing assembly, which is connected to the bottom of the rotating pressure rod structure and is located in the first air outlet channel; the movable seat sealing assembly, under the action of the rotating pressure rod structure and the second solenoid valve, respectively realizes three states of sealing the upper end of the first air outlet channel, sealing the lower end of the first air outlet channel, and releasing both ends of the first air outlet channel; A fixed seat is sealingly connected to the valve body B and is located below the first air outlet channel. The fixed seat is connected to the bottom end of the movable seat sealing assembly, and a return spring is provided between the fixed seat and the movable seat sealing assembly.

2. The control valve capable of remotely controlling flow rate according to claim 1, characterized in that: The rotating pressure rod structure comprises a first pressure rod, a second pressure rod and a pressure rod seat wrapped on the outside, wherein: The lower end surface of the first pressure rod is provided with uniformly distributed teeth, and the side of the first pressure rod is uniformly provided with positioning blocks; the side of the second pressure rod is uniformly provided with spaced tooth grooves and sliding grooves, and the side of the tooth groove is set as an inclined guide edge; the side of the pressure rod seat is uniformly provided with clamping strips.

3. The control valve capable of remotely controlling flow rate according to claim 1, characterized in that: The movable seat sealing assembly includes a first movable seat sealing assembly and a second movable seat sealing assembly connected together; the first movable seat sealing assembly includes a first sealing gasket for sealing the upper end of the first air outlet channel, and the second movable seat sealing assembly includes a second sealing gasket for sealing the lower end of the first air outlet channel.

4. The control valve capable of remotely controlling flow rate according to claim 3 is characterized in that: The upper end surface of the first sealing gasket is provided with a connecting rod which is inserted into the lower end of the rotating pressure rod structure; the lower end surface of the first sealing gasket is provided with a cross-shaped first supporting plate, and a protruding screw is provided in the middle of the first supporting plate.

5. The control valve capable of remotely controlling flow rate according to claim 4 is characterized in that: The upper end surface of the second sealing gasket is provided with a cross-shaped second support plate, and the middle part of the second support plate is provided with a hollow connecting hole with an internal thread for the screw to be screwed on; the lower end surface of the second sealing gasket is provided with a push rod, the push rod is inserted into the fixing seat, and the reset spring is sleeved on the push rod.

6. A control valve capable of adjusting flow rate by remote control, comprising a valve body A, a valve seat arranged at the bottom of the valve body A, a first solenoid valve connected to the valve seat, a valve core arranged in the valve body A, and a control knob connected to the valve core, one side of the valve body A is provided with a gas inlet port and an ODS port, and the other side of the valve body A is provided with an air outlet, and the valve core is provided with an ODS air outlet and an air inlet; characterized in that: Also includes: A valve body C, on which is provided a second chamber adjacent to the air outlet but sealed and isolated; a third chamber arranged below the second chamber and connected to the air outlet; a third air outlet channel connected to the third chamber; a fourth chamber connected to the third air outlet channel; a fourth air outlet channel connected to the fourth chamber, the third air outlet channel and the second chamber, wherein the third air outlet channel is located at the top of the fourth chamber; an air outlet port connected to the second chamber; a fifth air outlet channel connected to the third chamber and the fourth chamber; a minimum flow screw, arranged in the third gas outlet passage to control the flow of the gas flowing out through the third gas outlet passage; A remote control rotary push-type controller, comprising: a second solenoid valve, which is installed on the valve body B and directly above the fourth air outlet channel; the solenoid valve is controlled by a remote controller; a circular sealing gasket, which is sealed and fixed on the valve body C through a fixing member and is located below the second solenoid valve; A rotating pressure rod structure, which is arranged below the circular sealing pad, and the rotating pressure rod structure is controlled by the telescopic rod of the second solenoid valve; A movable seat sealing component, which is connected to the bottom of the rotating pressure rod structure and is located in the fourth air outlet channel; the movable seat sealing component, under the action of the rotating pressure rod structure and the second solenoid valve, respectively seals the upper end of the fourth air outlet channel; seals the lower end of the fourth air outlet channel without sealing the connection between the third air outlet channel and the fourth air outlet channel; and releases the two ends of the fourth air outlet channel so that the third air outlet channel and the fourth chamber are both connected to the fourth air outlet channel to the second chamber. The fixed seat is sealingly connected to the valve body C and is located below the fourth air outlet channel. The fixed seat is connected to the bottom end of the movable seat sealing assembly, and a return spring is provided between the fixed seat and the movable seat sealing assembly.

7. The control valve capable of remotely controlling flow rate according to claim 6, characterized in that: The rotating pressure rod structure comprises a first pressure rod, a second pressure rod and a pressure rod seat wrapped on the outside, wherein: The lower end surface of the first pressure rod is provided with uniformly distributed teeth, and the side of the first pressure rod is uniformly provided with positioning blocks; the side of the second pressure rod is uniformly provided with spaced tooth grooves and sliding grooves, and the side of the tooth groove is set as an inclined guide edge; the side of the pressure rod seat is uniformly provided with clamping strips.

8. The control valve capable of remotely controlling flow rate according to claim 6 is characterized in that: The movable seat sealing assembly includes a first movable seat sealing assembly and a second movable seat sealing assembly connected together; the first movable seat sealing assembly includes a first sealing gasket for sealing the upper end of the fourth air outlet channel, and the second movable seat sealing assembly includes a second sealing gasket for sealing the lower end of the fourth air outlet channel.

9. The control valve capable of remotely controlling flow rate according to claim 8, characterized in that: The upper end surface of the first sealing gasket is provided with a connecting rod which is inserted into the lower end of the rotating pressure rod structure; the lower end surface of the first sealing gasket is provided with a cross-shaped first supporting plate, and a protruding screw is provided in the middle of the first supporting plate.

10. The control valve capable of remotely controlling flow rate according to claim 9, characterized in that: The upper end surface of the second sealing gasket is provided with a cross-shaped second support plate, and the middle part of the second support plate is provided with a hollow connecting hole with an internal thread for the screw to be screwed on; the lower end surface of the second sealing gasket is provided with a push rod, the push rod is inserted into the fixing seat, and the reset spring is sleeved on the push rod.

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