Gas regulating valve

Abstract

The utility model provides a kind of gas regulating valve, to provide a simple operation can be through mechanical control and make gas continuous supply to parent fire combustion, and accurately adjust the control valve of main fire gas flow. The regulating valve includes a main valve seat, a vice valve seat, an inner adjusting rod, a valve plug assembly, a locating seat and an outer operating rod. Wherein, the locating seat is provided with an inner guide ring and an outer guide part, when the user presses the outer operating rod piece and makes it guide through outer guide part and automatically deflect an angle, it can be released, the inner guide ring can be automatically maintained parent fire combustion, and the parent fire gas flow is maintained by a thermocouple solenoid valve heated, then the outer operating rod drives inner adjusting rod and main valve plug close to or away from main valve port, the size of main fire gas flow can be adjusted, with the advantages of reducing cost and safe and reliable.

Description

Technical Field

[0001] This utility model relates to a gas regulating valve, the technical content of which involves the opening and maintenance of the main flame of a water heater, as well as the regulation and control of the gas flow of the main flame. The main feature is that it uses structural design to mechanically control the continuous combustion of the main flame, and maintains the gas flow of the main flame through a thermocouple solenoid valve, which facilitates subsequent adjustment of the main flame size and has the effects of reducing costs and ensuring safety and reliability. Background Technology

[0002] Modern water heaters that emphasize constant temperature and intelligent control require various sensors and magnetic regulating valves to control the gas flow of the main and secondary flames in order to regulate the heat output. While these water heaters offer convenience, they require a stable power supply to operate, which can be inconvenient in areas with relatively unstable power supplies, and can also cause problems with the inability to accurately control the gas flow.

[0003] In addition, the more electronic control components a water heater's gas regulation system uses, the higher the cost. Moreover, electronic components have a shorter lifespan, and when a fault occurs, a professional technician needs to inspect the circuit board, solenoid valve, and sensor one by one before replacing the damaged electronic components. This not only significantly increases maintenance costs, but is also less reliable in terms of durability and stability compared to mechanical control.

[0004] In view of this, the creator has accumulated many years of research and practical experience in related fields and redesigned the gas valve and operation control structure of water heaters. This allows the gas regulating valve to meet usage requirements through precision mechanical design, thereby improving the durability and reliability of parts, saving manufacturing and maintenance costs, and overcoming the shortcomings of known technologies. Utility Model Content

[0005] The purpose of this utility model is to provide a gas regulating valve. This regulating valve uses a precise mechanical transmission method, and only requires simple pressing and rotating actions to continuously supply gas to the main flame. Then, the gas flow of the main flame can be adjusted and stabilized. It has the effects of reducing costs, convenient operation and safety and reliability.

[0006] To achieve the above objectives, this utility model provides a gas regulating valve, comprising a main valve seat having a main valve port and a main flame passage, a secondary valve seat mounted on the main valve seat and having a mother flame passage inside, an inner adjusting rod movably passing through the secondary valve seat, a valve plug assembly, a positioning seat fixed to the outside of the secondary valve seat, and an outer operating rod movably passing through the positioning seat and capable of being pressed and deflected; wherein: the valve plug assembly includes a main valve plug disposed at the front end of the inner adjusting rod and elastically closing the main valve port, the main valve plug having a small valve port communicating with the mother flame passage, the small valve port being elastically closed by a mother flame valve plug and a small valve rod; characterized in that:

[0007] The positioning seat has an outer guide portion obliquely arranged around its outer perimeter, and an inner guide ring protruding from its inner side. The inner guide ring has a correspondingly recessed positioning groove. The outer operating rod has an operating end on its outer side, an outer pin relative to the outer guide portion, and an inner pin relative to the positioning groove and the inner guide ring. The inner pin is elastically embedded in the positioning groove. Pressing the outer operating rod can push the small valve rod and the main flame valve plug to open the main flame channel. The outer pin is guided by the outer guide portion and deflected at an angle, so that the inner pin is disengaged from the positioning groove and elastically abuts against the inner guide ring at a relatively high position to maintain the open state of the main flame valve plug. Then, the outer operating rod drives the inner adjusting rod and the main valve plug to move closer to or further away from the main valve port to adjust the opening, thereby adjusting the gas flow rate of the main flame channel.

[0008] With the above structure, when the user presses the external operating lever, two actuation strokes will be generated. When pressed initially, the small valve rod can be used to move the main flame valve plug away from the small valve port to open the main flame channel, allowing the gas to be released from the main flame channel to supply the main flame for combustion. At the same time, the inner pin of the external operating lever will be moved away from the positioning groove of the positioning seat.

[0009] At this time, continuously pressing the outer operating lever and the outer pin will cause the outer pin to be guided by the oblique direction of the outer guide part, which will automatically deflect the outer operating lever and the inner pin by an angle, causing the inner pin to be misaligned with the positioning groove of the positioning seat. When the user releases the outer operating lever to release the pressure, the rebound of the small valve rod will cause the inner pin to abut against the inner guide ring, and the main flame valve plug will continue to move away from the small valve port, keeping the main flame channel open to maintain the main flame combustion.

[0010] To close the regulating valve, simply deflect the outer operating lever in the opposite direction, and simultaneously deflect the adjusting parts of the inner pin and the inner adjusting lever. When the inner pin is aligned with the positioning groove, the inner pin can elastically embed into the positioning groove to close the small valve port and the main flame channel, while the main valve plug elastically re-closes the main valve port, blocking the gas supply to the main flame channel.

[0011] In other words, with the above structure, the user only needs to press down the external operating lever and release it to ignite the mother flame and maintain it automatically. Then, the user can operate the external operating lever to open the main flame channel, ignite the main flame, and adjust the flame intensity to complete the operation. To close the gas regulating valve, the user only needs to turn the external operating lever in the opposite direction to close the main flame and the mother flame. Not only does the mechanism not require any electricity, but the operation process is also very simple and convenient to use.

[0012] Other embodiments of this utility model are further described below:

[0013] In practice, the inner guide ring of the positioning seat has a wedge-shaped protrusion protruding from the surface of the inner guide ring at the side of the positioning groove. The small valve rod is pushed against the outer operating rod by a small spring, so that the inner pin elastically abuts against the inner guide ring. When the outer operating rod deflects in the opposite direction, the inner pin can elastically pass over the wedge-shaped protrusion through the small spring and then embed into the positioning groove, while pushing the small valve rod and the main valve plug to close the main flame.

[0014] In practice, the valve plug assembly further includes a main spring that elastically abuts against the inner adjusting rod and the main valve plug. A ramp is provided between the auxiliary valve seat and the positioning seat. The ramp has an incline and extends in the circumferential direction. The inner adjusting rod is provided with an adjusting member. The adjusting member elastically abuts against the ramp by the main spring. Rotating the outer operating rod can drive the inner adjusting rod to deflect, causing the adjusting member to move on the slope of the ramp, and causing the main valve plug to move away from or closer to the main valve port. The opening between the main valve plug and the main valve port is adjusted by the position of the adjusting member abutting against the ramp, thereby adjusting the gas flow rate of the main combustion channel.

[0015] In practice, the lifting ramp is set on a plastic sleeve that is fixedly installed on the inner edge of the auxiliary valve seat or positioning seat. The adjusting component is a lifting cam fixed on the outer edge of the inner adjusting rod. The lifting cam abuts against the lifting ramp, so that the main valve plug moves closer to or away from the main valve port by the displacement of the lifting cam on the lifting ramp.

[0016] In practice, the lifting ramp is fixedly installed on the inner edge of the auxiliary valve seat or positioning seat, and its shape is an ascending / descending inclined surface, toothed surface or wave-shaped surface. The adjusting component is a roller or pin installed and fixed on the outer edge of the inner adjusting rod and correspondingly abutting against the lifting ramp. When the roller or pin moves against the toothed surface or wave-shaped surface of the lifting ramp, it forms multiple bouncing and jamming segments by the elastic abutment of the main spring.

[0017] In practice, the auxiliary valve seat is provided with a through hole through which the inner adjusting rod moves. Inside the inner adjusting rod is a small channel through which the small valve rod moves. The small channel connects the small valve port, the through hole and the main flame channel, so that when the main flame valve plug opens the small valve port, the gas can be released from the small valve port through the gap between the small valve rod and the small channel and then from the main flame channel.

[0018] In practice, the inner adjusting rod has a set of connecting parts at its tail end, and the outer operating rod has a corresponding connecting part connected to the set of connecting parts. There is an axial movable gap between the connecting part and the set of connecting parts, so that when the inner adjusting rod axially pushes the main valve plug closer to or away from the main valve port, the outer operating rod is not axially pushed and displaced by the inner adjusting rod through the axial movable gap.

[0019] In practice, the main valve seat is further provided with a thermocouple solenoid valve at the main valve port position to keep the main valve port closed, and when the external operating rod is pressed to displace the small valve rod to open the mother flame plug, the small valve rod can press the thermocouple solenoid valve to open the main valve port.

[0020] In implementation, the positioning seat is externally provided with a fixed frame assembly. The fixed frame assembly has a positioning hole at a position relative to the outer side of the operating end. A sliding groove extends from the positioning hole to both sides of the positioning hole. The fixed frame assembly has a movable rack at a position below the operating end, and a push button connected to the movable rack is provided on the positioning hole. The push button can movably slide within the sliding groove, causing the movable rack to move.

[0021] The outer edge of the operating end of the external operating lever is provided with a gear that meshes with the movable rack. When the main flame is off, the button is aligned with the operating end. Pressing the button on the operating end and the external operating lever turns on the main flame. When the button causes the movable rack to displace relative to the fixed frame assembly and the operating end, it drives the gear and the operating end to rotate, thereby deflecting the external operating lever to adjust the main flame size.

[0022] In practice, the fixed frame assembly further includes a sliding plate for fixing the movable rack and the button. A spring ball is provided on the sliding plate and abuts against the frame assembly. The fixed frame assembly has a plurality of segment holes relative to the position of the spring ball. The plurality of segment holes are arranged parallel to the sliding groove. When the movable rack, the button, the sliding plate and the spring ball slide relative to the fixed frame assembly, the spring ball bounces and enters the plurality of segment holes one by one to create multiple segments.

[0023] Compared to previous technologies, this invention, through the outer and inner pins on the outer operating lever, and the corresponding outer guide part and inner guide ring of the positioning seat, allows the user to ignite the main flame with just one press. The main flame is automatically maintained when the press is released and released. Afterwards, the intensity of the main flame can be adjusted by rotating the outer operating lever. The process does not require the use of electronic components such as electronic sensors that rely on external power to operate. It not only has the advantages of being convenient to use and safe and reliable, but also significantly reduces manufacturing and maintenance costs.

[0024] The following describes embodiments suitable for this utility model, based on the technical means of this utility model, and in conjunction with the accompanying drawings. Attached Figure Description

[0025] Figure 1 This is an exploded perspective view of the overall structure of this utility model.

[0026] Figure 2 This is an exploded perspective view of the gas regulating valve of this utility model.

[0027] Figure 3 This is a partial cross-sectional view of the gas regulating valve of this utility model from another perspective.

[0028] Figure 4 This is a cross-sectional view of the gas regulating valve of this utility model.

[0029] Figure 5 This is a schematic diagram illustrating the action of pressing the external operating lever to open the main flame according to this utility model.

[0030] Figure 6 This is a schematic diagram showing the movement of the inner and outer pins when the outer operating lever is initially pressed.

[0031] Figure 7 This is a schematic diagram illustrating the action of the inner and outer pins after the outer operating lever is continuously pressed.

[0032] Figure 8 This diagram shows the structural relationship between the external operating lever and the positioning seat after the external operating lever is released.

[0033] Figure 9 This is a schematic diagram showing how the mother flame continues to burn after the external operating lever is released.

[0034] Figure 10 This is a schematic diagram illustrating the action of rotating the outer operating lever to drive the inner adjusting lever to deflect.

[0035] Figure 11 This is a schematic diagram illustrating how the main flame size is adjusted after the internal adjusting rod of this utility model is deflected.

[0036] Figure 12 This is a schematic diagram of another embodiment of the lifting slope of the auxiliary valve seat of this utility model.

[0037] Figure 13 for Figure 12 A diagram illustrating the action of adjusting the main flame size.

[0038] Figure 14 This is a schematic diagram of another embodiment of the internal adjusting rod and the auxiliary valve seat of this utility model.

[0039] Figure 15 for Figure 14 A diagram illustrating the action of adjusting the main flame size.

[0040] Figure 16 This is another embodiment of the lifting cam of this utility model.

[0041] Figure 17 for Figure 16 A diagram illustrating the action of adjusting the main flame size.

[0042] Figure 18 This is a schematic diagram of the gas flow after adjusting the main burner according to this utility model.

[0043] Figure 19 This is a schematic diagram illustrating the action of shutting off the mother flame and main flame after the inner and outer adjusting rods of this utility model are rotated.

[0044] Figure 20 An exploded perspective view of a frame component for this utility model.

[0045] Figure 21 This is a schematic diagram showing the structural relationship between the external adjustment rod and the frame assembly of this utility model.

[0046] Figure 22 This is a schematic diagram illustrating the action of pressing the outer adjusting rod in the frame assembly of this utility model.

[0047] Figure 23 This is a schematic diagram illustrating the movement of the external adjusting rod of the frame assembly of this utility model.

[0048] Explanation of reference numerals in the attached drawings: Main valve seat 10; Gas inlet 11; Main valve port 12; Main ignition channel 13; Thermocouple solenoid valve 14; Auxiliary valve seat 20; Through hole 21; Mother ignition channel 22; Rising ramp 23; Stop plate 24; Internal adjusting rod 30; Small channel 31; Adjusting component 32; Assembly part 33; Axial movement clearance 34; Valve plug assembly 40; Main valve plug 41; Main spring 411; Small valve port 42; Small valve stem 43; Mother ignition valve Plug 44; Small spring 441; Top pressing part 45; Positioning seat 50; Through hole 51; Outer guide part 52; Inner guide ring 53; Positioning groove 54; Wedge-shaped protrusion 55; Outer operating rod 60; Operating end 61; Outer pin 62; Connecting part 63; Inner pin 64; Gear 65; Frame assembly 70; Movable rack 71; Positioning hole 72; Sliding groove 73; Press button 74; Sliding piece 75; Spring ball 76; Segment hole 77. Detailed Implementation

[0049] like Figures 1 to 4 As shown, this utility model provides a gas regulating valve suitable for water heaters. Its structure includes a main valve seat 10, a secondary valve seat 20, an inner adjusting rod 30, a valve plug assembly 40, a positioning seat 50, and an outer operating rod 60. The main valve seat 10 has a gas inlet 11, a main valve port 12, and a main burner channel 13. Gas entering the main valve seat 10 from the gas inlet 11 must pass through the main valve port 12 before being released through the main burner channel 13 to supply the main burner of the water heater. The specific structure of each component is further described below.

[0050] The auxiliary valve seat 20 is installed on the outside of the main valve seat 10 relative to the main valve port 12. The auxiliary valve seat 20 has a through hole 21 communicating with the main valve port 12 and a mother flame channel 22 inside. A ramp 23 is provided on the inner edge of the auxiliary valve seat 20 near its end. The ramp 23 extends along the circumference of the through hole 21 and has an incline. In practice, the ramp 23 is not limited to being located inside the auxiliary valve seat 20; it is possible to separately manufacture a plastic sleeve with the ramp 23 and install it between the auxiliary valve seat 20 and the positioning seat 50.

[0051] The inner adjusting rod 30 is movably inserted into the through hole 21 of the auxiliary valve seat 20. The inner part is provided with a small channel 31 that communicates with the through hole 21 and the mother fire channel 22. The outer part is provided with an adjusting member 32 relative to the lifting slope 23, and a set of connecting parts 33 is provided at the outer tail.

[0052] The valve plug assembly 40 includes a main valve plug 41 disposed at the front end of the inner adjusting rod 30. The main valve plug 41 receives a main spring 411 to elastically close the main valve port 12 of the main valve seat 10. The main valve plug 41 has a small valve port 42 in the center, which communicates with the main valve port 12 and the small channel 31. A small valve rod 43 is movably inserted through the small valve port 42. A master valve plug 44 is disposed at the front end of the small valve rod 43. The small valve rod 43 and the master valve plug 44 can receive a small spring 441 to elastically close the small valve port 42. The tail end of the small valve rod 43 passes through the rear side of the small channel 31 of the inner adjusting rod 30 to form a top pressure part 45.

[0053] The positioning seat 50 is installed at the tail end of the auxiliary valve seat 20. A through hole 51 is provided in the center to align with the through hole 21. An outer guide part 52 is obliquely arranged around the outside of the positioning seat 50, and an inner guide ring 53 is provided around the front end of the through hole 51 on the inner side. The inner guide ring 53 protrudes into the through hole 21 in a ring shape and is provided with a recessed positioning groove 54.

[0054] The external operating lever 60 is movably inserted through the through hole 51 of the positioning seat 50, and its outer end forms an operating end 61 for user operation. An external pin 62 is provided at the position relative to the external guide part 52. The inner end of the external operating lever 60 is provided with a connecting part 63 that is connected to the assembly part 33 of the inner adjusting lever 30. An inner pin 64 is provided at the position relative to the inner guide ring 53 and the positioning groove 54 of the positioning seat 50.

[0055] The inner end of the connecting part 63 abuts against the pressing part 45 of the small valve rod 43 of the valve plug assembly 40. Since the small valve rod 43 is provided with a small spring 441, the outer operating rod 60 can receive the elastic pressing part 45 at the tail end of the small valve rod 43 and maintain an outward elastic force, and keep the inner pin 64 in the position of being embedded in the positioning groove 54.

[0056] In this way, such as Figures 5 to 9 As shown, when the user presses the operating end 61 to move the outer operating lever 60 toward the positioning seat 50, the outer operating lever 60 pushes against the small valve rod 43, causing the main flame valve plug 44 to move away from the small valve port 42. This allows the gas from the main valve port 12 on the main valve seat 10 to pass sequentially through the gap between the small valve port 42, the small valve rod 43, and the small channel 31, and then be released from the main flame channel 22 to ignite the main flame. As for the method of igniting the main flame, it can be ignited by using a piezoelectric device (not shown in the figure) to generate an electric arc after a single press, without the need for an external power supply or battery, which will not be described in detail here.

[0057] When the outer operating lever 60 moves toward the positioning seat 50, the inner pin 64 can move away from the positioning groove 54. When the outer operating lever 60 and the outer pin 62 continue to move to touch the obliquely arranged outer guide part 52, the outer pin 62 can be guided by the outer guide part 52, causing the outer operating lever 60 to deflect at an angle, so that the inner pin 64, which has moved away from the positioning groove 54, is misaligned with the positioning seat 50.

[0058] When the pressure is released, the outer operating lever 60 and the inner pin 64 are pushed against each other by the small spring 441 and the small valve rod 43. This allows the inner pin 64 to abut against the inner guide ring 53 of the positioning seat 50. Due to the height difference between the recessed positioning groove 54 and the inner guide ring 53, when the inner pin 64 abuts against the inner guide ring 53 and moves on the inner guide ring 53, the small valve rod 43 and the main flame valve plug 44 cannot return to the position of closing the small valve port 42. Therefore, the main flame valve plug 44 can be kept in the open position, allowing the gas to be continuously supplied to the main flame.

[0059] In practice, as shown in the figure, the main valve seat 10 is further provided with a thermocouple solenoid valve 14 at the relative position of the main valve port 12 to keep the main valve port 12 closed. When the outer operating rod 60 is pressed and displaced, the connecting part 63 of the outer operating rod 60 abuts against the small valve rod 43. The thermocouple solenoid valve 14 can be opened by the small valve rod 43 pressing against it. After that, the thermocouple solenoid valve 14 can automatically maintain the open state when heated, without the need for additional operation or the use of electricity to open the main valve port 12. On the other hand, the thermocouple solenoid valve 14 also has the function of a second safety valve. If the water heater is abnormal and the thermocouple solenoid valve 14 cannot be heated, the thermocouple solenoid valve 14 will automatically close the main valve port 12 to improve safety.

[0060] Figures 10 to 16The main flame adjustment method is explained. When the outer operating lever 60 is pressed to ignite the main flame, and the outer operating lever 60 is released to maintain the main flame, the user can rotate the operating end 61 of the outer operating lever 60. Through the combination of the connecting part 63 and the assembly part 33, the inner adjusting lever 30 and the adjusting member 32 are driven to deflect. The adjusting member 32 deflects on the slope of the rise and fall slope 23, and at the same time, the main valve plug 41 is driven away from the main valve port 12. Thus, the opening between the main valve plug 41 and the main valve port 12 is adjusted by the position of the adjusting member 32 against the rise and fall slope 23, thereby adjusting the gas flow and flame intensity of the main flame channel 13 on the main valve seat 10.

[0061] In practice, there is an axial movement gap 34 between the assembly part 33 of the aforementioned inner adjusting rod 30 and the connection part 63 of the outer operating rod 60. When the inner adjusting rod 30 pushes the main valve plug 41 axially closer to or further away from the main valve port 12 as described above, the inner adjusting rod 30 will not push the outer operating rod 60 to move due to the stroke of the axial movement gap 34.

[0062] It should be noted that when rotating the outer operating lever 60 causes the inner adjusting lever 30 and adjusting component 32 to deflect in order to adjust the fire intensity, as mentioned above, because the inner pin 64 of the outer operating lever 60 is displaced in the inner guide ring 53, the small valve rod 43 and the main flame valve plug 44 cannot return to the position of closing the small valve port 42. Therefore, adjusting the main flame flow will not affect the continuous combustion of the main flame.

[0063] Figures 10 to 13 In the illustrated embodiment, the rising / falling slope 23 within the secondary valve seat 20 is shaped as an ascending / descending slope, a toothed surface, or a wave-like surface, and the adjusting member 32 of the inner adjusting rod 30 is directly fixed to the outer edge of the assembly portion 33 in the form of a pin or roller; it can be understood that, as Figure 12 and Figure 13 In the embodiment shown, when the lifting ramp 23 is toothed or wave-shaped, the adjusting member 32, which is in the form of a pin or roller, is displaced on the lifting ramp 23. Because the main spring 411 elastically presses against the inner adjusting rod 30, the adjusting member 32 will have an intermittent stuck feel due to the tooth or wave shape of the lifting ramp 23. This will result in the main valve plug 41 having multiple positions when adjusting the main fire opening, making it convenient for the user to operate.

[0064] Figures 14 to 18 This paper discloses another embodiment of the lifting slope 23 of the secondary valve seat 20 and the adjusting member 32 of the inner adjusting rod 30. As shown in the figure, in this embodiment, the lifting slope 23 is disposed on a plastic sleeve fixedly installed on the inner edge of the secondary valve seat 20, and the adjusting member 32 is a lifting cam fixed on the outer edge of the inner adjusting rod 30 assembly portion 33, which abuts against the lifting slope 23.

[0065] Similarly, when the inner adjusting rod 30 deflects relative to the secondary valve seat 20, the adjusting member 32, which is in the form of a lifting cam, can slide on the lifting slope 23. The opening between the main valve plug 41 and the main valve port 12 is adjusted by the position of the adjusting member 32 against the lifting slope 23, thereby adjusting the gas flow and firepower of the main fire channel 13 on the main valve seat 10.

[0066] It is worth mentioning that the above Figures 14 to 17 The disclosed implementation of the lifting ramp 23 and adjusting member 32 has the advantage that the lifting ramp 23 in the form of a plastic sleeve and the adjusting member 32 in the form of a lifting cam can both be manufactured by plastic injection molding and installed at the relative positions of the auxiliary valve seat 20 and the inner adjusting rod 30. This not only makes it easy to set a stop and a foolproof mechanism on the plastic part, but also reduces the wear of the adjusting member 32 when it slides against the lifting ramp 23, and has the advantage of easy maintenance and replacement.

[0067] In the accompanying drawings, the lifting ramp 23 in the form of a plastic sleeve is provided with a stop plate 24 with a notch. When the lifting ramp 23 is installed on the secondary valve seat 20, the notch of the stop plate 24 can be used for alignment and fixation, and the stop plate 24 can be used to limit the movement stroke of the adjusting member 32. In addition, in this embodiment, the lifting ramp 23 is installed between the secondary valve seat 20 and the positioning seat 50 in a different way. During installation, it can be fixed in either the secondary valve seat 20 or the positioning seat 50, and is not limited to being fixed in the secondary valve seat 20 as shown in the figure.

[0068] besides, Figure 14 and Figure 15 In the embodiment shown, the adjusting member 32, which is shaped like a lifting cam, has a protrusion that abuts against the inclined surface of the lifting slope 23. When the protrusion of the adjusting member 32 slides on the lifting slope 23, the axial displacement of the inner adjusting rod 30 and the main valve plug 41 can be adjusted by the sliding of the protrusion of the adjusting member 32 on the inclined surface of the lifting slope 23.

[0069] Figure 16 and Figure 17 In the illustrated embodiment, the adjusting member 32, shaped like a lifting cam, has an inclined surface that abuts against the inclined surface of the lifting ramp 23. By sliding the adjusting member 32 along the inclined surface on the lifting ramp 23, the same effect can be achieved. In other words, in actual implementation, except for the tenth to... Figure 14 In addition to the pins or rollers shown, Figures 15 to 17 The lifting cams shown in the figures, which have inclined surfaces or protrusions, are all feasible implementations and are not limited to the shapes depicted in the figures.

[0070] In summary Figures 5 to 18As shown, when the user presses the external operating lever 60, two actuation strokes will be generated; when pressed initially, the inner pin 64 of the external operating lever 60 moves away from the positioning groove 54 of the positioning seat 50, and at the same time, the main flame valve plug 44 moves away from the small valve port 42 to open the main flame channel 22, so that the gas can be released from the main flame channel 22 to supply the main flame for combustion.

[0071] At this time, continuously pressing the outer operating lever 60 and the outer pin 62 will cause the outer pin 62 to be guided by the outer guide part 52, which will cause the outer operating lever 60 and the inner pin 64 to automatically deflect at an angle, thereby causing the inner pin 64 to be misaligned with the positioning groove 54 of the positioning seat 50. When the user releases the outer operating lever 60 to release the pressure, the inner pin 64 will abut against the inner guide ring 53 through the rebound of the small valve rod 43 and the small spring 441, and the main flame valve plug 44 will continue to move away from the small valve port 42, so that the main flame channel 22 remains open to maintain the main flame combustion.

[0072] Then, rotate the outer operating lever 60 to make the inner adjusting lever 30 and the adjusting component 32 deflect synchronously. The adjusting component 32 can move on the slope of the sub-valve seat 20, causing the inner adjusting lever 30 to push the main valve plug 41 away from the main valve port 12. Then, the gas can be supplied to the main fire channel 13 through the main valve port 12, allowing the continuously burning mother flame to ignite the main flame. By adjusting the position of the adjusting component 32 on the slope of the slope 23, the opening of the main valve plug 41 away from the main valve port 12 can be adjusted, thereby adjusting the fire intensity.

[0073] In addition, as the user rotates the external operating lever 60 to adjust the main flame size, the inner pin 64 continuously abuts against the inner guide ring 53 and moves away, so that the main flame valve plug 44 continuously moves away from the small valve port 42, keeping the main flame channel 22 open to maintain the main flame combustion.

[0074] like Figure 19 As shown, to close the regulating valve, simply deflect the outer operating lever 60 in the opposite direction, and simultaneously deflect the inner pin 64 and the adjusting member 32 of the inner adjusting lever 30. When the inner pin 64 is aligned with the positioning groove 54, the inner pin 64 can be elastically embedded in the positioning groove 54 to close the small valve port 42 and the main flame channel 22. At the same time, the position restriction between the adjusting member 32 of the inner adjusting lever 30 and the lifting slope 23 of the auxiliary valve seat 20 is released, so that the main valve plug 41 re-closes the main valve port 12 under the elastic action of the main spring 411, blocking the gas supply to the main flame channel 13.

[0075] In summary, the user only needs to press down the outer operating lever 60 and then release it to ignite the main flame and maintain it automatically. Then, by rotating the outer operating lever 60, the inner adjusting lever 30 and the main valve plug 41 open the main flame channel 13 to ignite the main flame, and the flame intensity can be adjusted by the deflection angle. When the user wants to close the gas regulating valve, they only need to rotate the outer operating lever 60 in the opposite direction to close the main flame and the mother flame. Not only does the mechanism not require any electricity, but the operation process is also very simple and convenient to use.

[0076] Other embodiments of this utility model are further described below:

[0077] like Figure 3 and Figure 19 As shown, during implementation, the inner guide ring 53 of the positioning seat 50 has a wedge-shaped protrusion 55 protruding from the surface of the inner guide ring 53 at the side position of the positioning groove 54. When the inner pin 64 abuts against the inner guide ring 53 and deflects in the opposite direction, it passes over the wedge-shaped protrusion 55 and aligns with the positioning groove 54. After being elastically embedded in the positioning groove 54 by the small spring 441, the main fire is shut off.

[0078] like Figures 20 to 23 As shown, in practice, the operating end 61 of the external operating lever 60 is provided with a frame assembly 70 fixed outside the positioning seat 50. The frame assembly 70 is provided with a movable rack 71 at a position below the operating end 61, and a gear 65 is provided on the outer edge of the operating end 61 to mesh with the movable rack 71, so that when the movable rack 71 is displaced, it can drive the gear 65 and the operating end 61 to rotate, thereby causing the external operating lever 60 to deflect to adjust the main fire size.

[0079] In practice, the frame assembly 70 has a positioning hole 72 on the outer side relative to the operating end 61. The positioning hole 72 extends to both sides with a sliding groove 73, and the positioning hole 72 has a button 74 that is connected to the movable rack 71. The button 74 can slide movably in the sliding groove 73 and drive the movable rack 71 to move. In the case of the main flame being off, the button 74 is aligned with the operating end 61 so that the outer operating lever 60 can be pressed to turn on the main flame.

[0080] In implementation, the frame assembly 70 further includes a sliding piece 75 for fixing the movable rack 71 and the button 74. A spring ball 76 is provided on the sliding piece 75 and abuts against the frame assembly 70. The frame assembly 70 has a plurality of segment holes 77 at a position relative to the spring ball 76. The plurality of segment holes 77 are arranged parallel to the sliding groove 73. When the rack 71, the button 74, the sliding piece 75 and the spring ball 76 slide relative to the frame assembly 70, the spring ball 76 bounces and enters the plurality of segment holes 77 one by one to create multiple segments.

[0081] The above descriptions and accompanying drawings are merely illustrative examples of preferred embodiments of the present utility model and are not intended to limit the patent scope of the present utility model. Any embodiments that are similar or identical to the purpose, structure, device, or features of the present utility model shall fall within the patent scope of the present utility model.

Claims

1. A gas regulating valve, comprising a main valve seat having a main valve port and a main flame passage, a secondary valve seat mounted on the main valve seat and having a main flame passage inside, an inner regulating rod movably passing through the secondary valve seat, a valve plug assembly, a positioning seat fixed to the outside of the secondary valve seat, and an outer operating rod movably passing through the positioning seat and capable of being pressed and deflected; wherein, The valve plug assembly includes a main valve plug disposed at the front end of the inner adjusting rod and elastically closing the main valve port. The main valve plug has a small valve port communicating with the main flame channel, and the small valve port is elastically closed by a main flame valve plug and a small valve rod; characterized in that: The positioning seat has an outer guide portion obliquely arranged around its outer perimeter, and an inner guide ring protruding in an annular shape on its inner side. The inner guide ring has a relatively recessed positioning groove. The outer operating rod has an operating end on its outer side, and an outer pin is provided on the outer operating rod relative to the outer guide portion. An inner pin is provided on the outer operating rod relative to the positioning groove and the inner guide ring. The inner pin is elastically embedded in the positioning groove. Pressing the outer operating rod can push the small valve rod and the main flame valve plug to open the main flame channel. The outer pin is guided by the outer guide portion and deflected at an angle, so that the inner pin is disengaged from the positioning groove and elastically abuts against the inner guide ring at a relatively high position to maintain the open state of the main flame valve plug. Then, the outer operating rod drives the inner adjusting rod and the main valve plug to move closer to or away from the main valve port to adjust the opening, thereby adjusting the gas flow rate of the main flame channel.

2. The gas regulating valve as described in claim 1, characterized in that: The inner guide ring of the positioning seat has a wedge-shaped protrusion protruding from the surface of the inner guide ring at the side of the positioning groove. The small valve rod is pushed against the outer operating rod by a small spring, so that the inner pin elastically abuts against the inner guide ring. When the outer operating rod deflects in the opposite direction, the inner pin can elastically pass over the wedge-shaped protrusion through the small spring and then insert into the positioning groove, while pushing the small valve rod and the main valve plug to close the main flame.

3. The gas regulating valve as described in claim 1, characterized in that: The valve plug assembly includes a main spring that elastically abuts against the inner adjusting rod and the main valve plug. A ramp is provided between the auxiliary valve seat and the positioning seat. The ramp has an incline and extends in the circumferential direction. The inner adjusting rod is provided with an adjusting member. The adjusting member elastically abuts against the ramp by the main spring. Rotating the outer operating rod can drive the inner adjusting rod to deflect, which can cause the adjusting member to move on the slope of the ramp and move the main valve plug away from or closer to the main valve port. The opening between the main valve plug and the main valve port is adjusted by the position of the adjusting member abutting against the ramp, thereby adjusting the gas flow rate of the main combustion channel.

4. The gas regulating valve as described in claim 3, characterized in that: The lifting ramp is mounted on a plastic sleeve fixedly installed on the inner edge of the auxiliary valve seat or positioning seat. The adjusting component is a lifting cam fixed on the outer edge of the inner adjusting rod. The lifting cam abuts against the lifting ramp, so that the main valve plug moves closer to or further away from the main valve port by the displacement of the lifting cam on the lifting ramp.

5. The gas regulating valve as described in claim 3, characterized in that: The lifting ramp is fixedly installed on the inner edge of the auxiliary valve seat or positioning seat, and its shape is an ascending / descending inclined surface, toothed surface or wave-shaped surface. The adjusting component is a roller or pin installed and fixed on the outer edge of the inner adjusting rod and correspondingly abutting against the lifting ramp. When the roller or pin moves against the toothed surface or wave-shaped surface of the lifting ramp, it forms multiple bouncing and jamming segments by the elastic abutment of the main spring.

6. The gas regulating valve as described in claim 1, characterized in that: The secondary valve seat is provided with a through hole through which the inner adjusting rod moves. Inside the inner adjusting rod is a small channel through which the small valve rod moves. The small channel connects the small valve port, the through hole and the main flame channel, so that when the main flame valve plug opens the small valve port, the gas can be released from the small valve port through the gap between the small valve rod and the small channel and then from the main flame channel.

7. The gas regulating valve as described in claim 1, characterized in that: The inner adjusting rod has a set of connecting parts at its tail end. The outer operating rod has a corresponding connecting part that connects to the set of connecting parts. There is an axial movable gap between the connecting part and the set of connecting parts. When the inner adjusting rod axially pushes the main valve plug closer to or away from the main valve port, the axial movable gap prevents the outer operating rod from being axially pushed and displaced by the inner adjusting rod.

8. The gas regulating valve as described in any one of claims 1 to 7, characterized in that: The main valve seat is provided with a thermocouple solenoid valve at the main valve port position to keep the main valve port closed. When the external operating rod is pressed to displace the small valve rod and open the main valve plug, the small valve rod can press the thermocouple solenoid valve to open the main valve port.

9. The gas regulating valve as described in any one of claims 1 to 7, characterized in that: The positioning seat is provided with a fixed frame assembly on the outside. The fixed frame assembly has a positioning hole at the outer side of the operating end. The positioning hole extends to both sides with a sliding groove. The fixed frame assembly has a movable rack at the lower position of the operating end. The positioning hole has a button that is connected to the movable rack. The button can slide in the sliding groove and drive the movable rack to move. The outer edge of the operating end of the external operating lever is provided with a gear, which meshes with the movable rack. When the main flame is off, the button is aligned with the operating end so that the main flame can be turned on by pressing the operating end and the external operating lever. When the button causes the movable rack to move relative to the fixed frame assembly and the operating end, it can drive the gear and the operating end to rotate, thereby causing the external operating lever to deflect to adjust the main flame size.

10. The gas regulating valve as described in claim 9, characterized in that: The fixed frame assembly includes a sliding plate for fixing the movable rack and the button. A spring ball is provided on the sliding plate and abuts against the frame assembly. The fixed frame assembly has a plurality of segment holes relative to the position of the spring ball. The plurality of segment holes are arranged parallel to the sliding groove. When the movable rack, the button, the sliding plate and the spring ball slide relative to the fixed frame assembly, the spring ball bounces and enters the plurality of segment holes one by one to create multiple segments.

Images