A cock valve and gas stove

Abstract

The application provides a cock valve and a gas stove and relates to the technical field of stove parts. The cock valve comprises a valve body, an air inlet channel is arranged on the valve body, a valve core is arranged in the valve body, the bottom of the valve core is provided with an air inlet and a first slot, the air inlet is communicated with the air inlet channel, a rotating plate is arranged on the valve core, a protruding block is arranged on the rotating plate, the protruding block is inserted into the first slot, the rotating plate is provided with a ventilation hole, a gear plate is arranged on the side of the rotating plate away from the valve core and abuts against the rotating plate, the gear plate is provided with an air inlet hole, the valve core is rotated, the rotating plate is driven by the valve core, the overlapping area of the ventilation hole and the air inlet hole is gradually changed, the air inlet amount of the valve core is gradually changed, the air flow passes through the gear plate and then enters the valve core, and then is transmitted out through the valve core, the large fire and small fire channel holes can simultaneously and synchronously discharge air and fire, and the flame size can be accurately controlled by controlling the air inlet amount of the gear plate.

Description

Technical Field

[0001] This invention belongs to the technical field of stove components, specifically relating to a stopcock valve and a gas stove. Background Technology

[0002] The stopcock valve is a core component of household gas stoves. Existing mechanical gas stoves all use stopcock valves for ignition, flame intensity adjustment, and flameout. Household gas stoves generally have inner and outer ring flames; the main and secondary flames are adjusted by rotating the valve core.

[0003] Chinese patent CN110953364A discloses a plug valve, comprising: a valve body having an air inlet channel, a main ignition channel, and a secondary ignition channel; a valve core installed in the valve body, the valve core being rotatable relative to the valve body, a valve cavity extending through the valve core, and a vent on the outer peripheral wall of the valve core that blocks the valve cavity, the vent including: an air inlet communicating with the air inlet channel, a main ignition outlet communicating with the main ignition channel, and a secondary ignition outlet communicating with the secondary ignition channel; a guide groove on the outer peripheral wall of the valve core that blocks the valve cavity; the air inlet, the main ignition outlet, and the secondary ignition outlet respectively communicating with the guide groove.

[0004] The aforementioned plug valve adjusts the air intake by rotating the valve core to regulate the overlap area between the valve core's air outlet and the corresponding channel, thereby controlling the flame size. Because the area of ​​the valve core's air outlet is relatively large, the air intake changes significantly with a slight rotation of the valve core, making it difficult to precisely control the flame size. Summary of the Invention

[0005] The purpose of this invention is to address the aforementioned problems in the prior art by proposing a plug valve that can precisely control the size of the flame.

[0006] The objective of this invention can be achieved through the following technical solution: a plug valve, comprising:

[0007] A valve body, on which an air intake passage is provided;

[0008] A valve core is disposed in the valve body. The bottom of the valve core is provided with an air inlet and a first slot. The air inlet is connected to the air inlet channel.

[0009] A rotating plate, wherein a protrusion is provided on the rotating plate and the protrusion is inserted into the first slot; and a vent hole is provided on the rotating plate.

[0010] A gear plate is provided on the side of the rotating plate away from the valve core and abuts against the rotating plate. An air inlet is provided on the gear plate.

[0011] When the valve core is rotated, the valve core drives the rotating plate to rotate, and the overlapping area of ​​the vent hole and the air inlet hole gradually changes, thus gradually changing the air intake of the valve core.

[0012] As a further improvement of the present invention, the radial dimension of the vent hole varies along the circumference of the gear plate.

[0013] As a further improvement of the present invention, the vent hole is configured as an arc-shaped fan hole.

[0014] As a further improvement of the present invention, it also includes a valve needle, which is disposed in the valve core, and the rotating plate and the stop plate are sleeved on the valve needle.

[0015] As a further improvement of the present invention, it also includes a first sealing ring and a second sealing ring, wherein the first sealing ring is sleeved on the valve needle, the rotating plate and the stop plate are sleeved on the first sealing ring, and the second sealing ring is disposed on the outside of the rotating plate and abuts against the stop plate.

[0016] As a further improvement of the present invention, it also includes a knob rod, which is inserted into the valve body. The knob rod is provided with a pin, the valve core is provided with a second slot, the pin is inserted into the second slot, the bottom of the knob rod is provided with a groove, and one end of the valve needle is provided in the groove.

[0017] As a further improvement of the present invention, the valve body is provided with a detachable fixing frame, the knob rod passes through the fixing frame and is inserted into the valve body, a micro switch is provided on one side of the valve body, and a pressure plate is sleeved on the knob rod. When the knob rod is pressed down, the pressure plate triggers the micro switch.

[0018] As a further improvement of the present invention, the valve body is further provided with a main ignition channel and a secondary ignition channel, which are located on both sides of the air intake channel, and a solenoid valve is provided in the air intake channel.

[0019] As a further improvement of the present invention, it also includes a bottom cover and a lever. The bottom cover is connected to the bottom of the valve body, the lever is disposed in the bottom cover, and a paddle is disposed on the lever. When the valve needle is pressed down, it pushes the paddle, and the lever rotates, thereby pushing the solenoid valve to open.

[0020] The present invention also provides a gas stove, including the stopcock valve described in any of the above claims.

[0021] Based on the above technical solution, the present invention can produce at least the following technical effects:

[0022] 1. The air intake of the valve core is adjusted by setting a baffle plate and a rotating plate. Since the airflow first passes through the baffle plate and then enters the valve core, and then is transmitted out through the valve core, the air intake hole on the baffle plate is much smaller than the air outlet hole on the valve core, so the size of the flame mainly depends on the air intake of the baffle plate. Therefore, the size of the flame can be precisely controlled by controlling the air intake of the baffle plate by rotating the plate, while ensuring that the large and small flame channels simultaneously output air and flame.

[0023] 2. By setting a first groove on the valve core and a protrusion on the rotating plate, with the protrusion inserted into the first groove, the valve core and the rotating plate are in a concave-convex fit, so that the valve core can directly drive the rotating plate to rotate when it rotates, thereby reducing the number of parts used and reducing costs.

[0024] 3. By setting the radial dimension of the vent on the rotating plate to vary along the circumference of the rotating plate, the change in air intake volume when the rotating plate rotates is non-linear, which can achieve more precise control over small changes in air intake volume.

[0025] 4. A first sealing ring is provided to seal the mounting holes in the rotating plate and the stop plate fitted on the valve needle; a second sealing ring is provided to seal the joint where the rotating plate and the stop plate are fitted together.

[0026] 5. By setting a pin on the knob rod and a second groove on the valve core, the knob rod can drive the valve core to rotate when it is turned. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of the plug valve of the present invention.

[0028] Figure 2 This is a front view of the plug valve of the present invention.

[0029] Figure 3 yes Figure 2 AA sectional view.

[0030] Figure 4 This is an exploded view of the plug valve of the present invention.

[0031] Figure 5 This is a schematic diagram of the rotating plate in the plug valve of the present invention.

[0032] Figure 6 This is a schematic diagram of the gear plate in the plug valve of the present invention.

[0033] In the diagram, 100 is the valve body; 110 is the air intake channel; 111 is the solenoid valve; 120 is the main fire channel; 130 is the secondary fire channel; 140 is the mounting bracket; 141 is the pressure plate; 150 is the micro switch; 200 is the valve core; 210 is the air inlet; 220 is the first slot; 230 is the second slot; 300 is the gear plate; 310 is the air inlet; 400 is the rotating plate; 410 is the vent hole; 420 is the protrusion; 510 is the first sealing ring; 520 is the second sealing ring; 600 is the knob rod; 610 is the pin; 620 is the groove; 700 is the valve needle; 800 is the bottom cover; 900 is the lever; and 910 is the paddle. Detailed Implementation

[0034] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of the components in a specific posture (as shown in the attached figure). If the specific posture changes, the directional indication will also change accordingly. Furthermore, descriptions involving "first," "second," or "a" in the present invention are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. In the description of the present invention, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly defined. In the present invention, unless otherwise explicitly specified and defined, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can be a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal communication of two components or the interaction between two components, unless otherwise explicitly defined. For those skilled in the art, the specific meanings of the above terms in this invention can be understood according to the specific circumstances. Furthermore, the technical solutions of the various embodiments of this invention can be combined with each other, but only on the basis that those skilled in the art can implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0035] The following are specific embodiments of the present invention, in conjunction with the appendix. Figure 1-6 The technical solution of the present invention will be further described below, but the present invention is not limited to the following embodiments.

[0036] A plug valve includes: a valve body 100, a valve core 200, a rotating plate 400, and a stop plate 300. The valve body 100 is provided with an air intake channel 110; the valve core 200 is disposed in the valve body 100, and the bottom of the valve core 200 is provided with an air inlet 210 and a first slot 220. The air inlet 210 is connected to the air intake channel 110, which is located on the side of the valve body 100 near the valve core 200; the rotating plate 400 is provided with a protrusion 420, which is inserted into the first slot 220, and the rotating plate 400 is provided with a vent hole 410; the gear plate 300 is located on the side of the rotating plate 400 away from the valve core 200 and abuts against the rotating plate 400, and the gear plate 300 is provided with an air intake hole 310; wherein, when the valve core 200 is rotated, the valve core 200 drives the rotating plate 400 to rotate, and the overlapping area of ​​the vent hole 410 and the air intake hole 310 gradually changes, and the air intake of the valve core 200 gradually changes. The air intake of the valve core 200 is adjusted by setting a baffle plate 300 and a rotating plate 400. Since the airflow first passes through the baffle plate 300 before entering the valve core 200, and then is transmitted out through the valve core 200, the air intake hole 310 on the baffle plate 300 is much smaller than the air outlet hole on the valve core 200. Therefore, the flame size mainly depends on the air intake of the baffle plate 300. Thus, the flame size can be precisely controlled by controlling the air intake of the baffle plate 300 through the rotating plate 400, while simultaneously ensuring that the main fire channel 120 and the secondary fire channel 130 simultaneously and synchronously output air and flame. Furthermore, by setting a first groove 620 on the valve core 200 and a protrusion 420 on the rotating plate 400, with the protrusion 420 inserted into the first groove 620, the rotation of the valve core 200 directly drives the rotation of the rotating plate 400, thereby reducing the number of parts used and lowering costs.

[0037] Specifically, the valve body 100 is also provided with a main flame channel 120 and a secondary flame channel 130, which are located on both sides of the intake channel 110. A solenoid valve 111 is installed in the intake channel 110 to control the opening and closing of the intake channel 110. The valve core 200 is installed inside the valve body 100 and can rotate relative to the valve body 100. A valve cavity is provided through the valve core 200. The outer peripheral wall of the valve core 200 is provided with a main flame outlet communicating with the main flame channel 120 and a secondary flame outlet communicating with the secondary flame channel 130. After the solenoid valve 111 is opened, the gas reaches the bottom of the valve core 200 through the intake channel 110, passes through the intake hole 310 on the baffle plate 300 and the vent hole 410 on the rotating plate 400 in sequence, enters the valve cavity, and then enters the main flame channel 120 and the secondary flame channel 130 from the main flame outlet and the secondary flame outlet, respectively. The main burner channel 120 and the secondary burner channel 130 are positioned on both sides of the air intake channel 110 to be compatible with the installation method of the matching gas stove.

[0038] Preferably, the radial dimension of the vent 410 varies along the circumference of the rotating plate 400. In this embodiment, the vent 410 is configured as an arc-shaped sector hole, and the radial dimension of the arc-shaped sector hole continuously varies along the circumference of the rotating plate 400. The air inlet 310 is configured as multiple circular holes arranged along the circumference of the gear plate 300. The size of the circular holes is divided into three categories: in the initial position, there is a medium-sized circular hole with a diameter of 1 mm; in the middle part, there are multiple small circular holes with a diameter of 0.3 mm; and at 90° of the gear plate 300, there is an elliptical hole with an area approximately twice that of the first middle hole. This design is based on the following considerations: in the initial position, the ignition of the plug valve requires a certain air intake, so the size of the first hole is slightly larger to meet the ignition requirements; in the middle part, in order to meet the purpose of accurately controlling the change of air intake, the hole diameter needs to be designed to be smaller; and at 90°, the firepower is the greatest, so the largest air inlet 310 is set. During the rotation of the rotating plate 400, the overlapping area of ​​the vent hole 410 and the air inlet hole 310 gradually increases, and the air intake of the valve core 200 gradually increases. However, since the vent hole 410 is set as an arc-shaped fan hole and its radial dimension gradually increases along the rotation direction, the rate of increase of the overlapping area gradually accelerates, and the rate of increase of the air intake of the valve core 200 gradually accelerates. This allows for precise control of the flame size near the initial position. When the rotating plate 400 rotates to 90°, the air intake reaches its maximum. As the rotating plate 400 continues to rotate, the air intake gradually decreases. By setting the radial dimension of the vent hole 410 on the rotating plate 400 to vary along the circumference of the rotating plate 400, the change in air intake during the rotation of the rotating plate 400 is non-linear, enabling more precise control of the flame size near the initial position.

[0039] The plug valve of the present invention further includes a valve needle 700, a first sealing ring 510, and a second sealing ring 520. The valve needle 700 is disposed in the valve core 200, and a rotating plate 400 and a stop plate 300 are sleeved on the valve needle 700. The first sealing ring 510 is sleeved on the valve needle 700, and the rotating plate 400 and the stop plate 300 are sleeved on the first sealing ring 510. The second sealing ring 520 is disposed on the outside of the rotating plate 400 and abuts against the stop plate 300. The first sealing ring 510 is used to seal the mounting holes in the rotating plate 400 and the stop plate 300 sleeved on the valve needle 700; the second sealing ring 520 is used to seal the contact area after the rotating plate 400 and the stop plate 300 are fitted together.

[0040] The present invention also includes a knob 600 and a bottom cover 800. The knob 600 is inserted into the valve body 100, and a pin 610 is provided on the knob 600. A second slot 230 is provided on the valve core 200, and the pin 610 is inserted into the second slot 230. A groove 620 is provided at the bottom of the knob 600. The bottom cover 800 seals the valve body 100 from the bottom. A rotatable lever 900 is provided inside the bottom cover 800, and a paddle 910 is provided on the lever 900. One end of the valve needle 700 is inserted into the groove 620 at the bottom of the knob 600, and the other end of the valve needle 700 has a gap with the paddle 910. When opening the stopcock valve, the operator needs to press down the knob lever 600 to move the valve needle 700 downward. The valve needle 700 then presses down the paddle 910, causing the paddle 910 to rotate the lever 900. After the lever 900 rotates, the solenoid valve 111 opens, thereby opening the air intake passage 110.

[0041] A detachable mounting bracket 140 is provided on the valve body 100, and a knob rod 600 is inserted into the valve body 100 through the mounting bracket 140. A spring is fitted on the knob rod 600, and a pressure plate 141 is fitted on the side of the mounting bracket 140 facing the valve body 100, with the pressure plate 141 abutting against a micro switch 150. The micro switch 150 is fixedly mounted on one side of the valve body 100. When the knob rod 600 is pressed down, the pressure plate 141 simultaneously presses the micro switch 150, igniting the stopcock valve.

[0042] The working principle of this plug valve is as follows:

[0043] Ignition: Press down the knob lever 600. The knob lever 600 moves the valve needle 700 downward. The valve needle 700 pushes the paddle 910. The paddle 910 drives the lever 900 to rotate. The rotation of the lever 900 opens the solenoid valve 111, thereby opening the intake passage 110. When the knob lever 600 moves, it drives the pressure plate 141 to move. The pressure plate 141 presses the micro switch 150, and the plug valve ignites.

[0044] Adjusting the flame intensity: Rotate the knob 600, which drives the valve core 200 and valve needle 700 to rotate. The valve needle 700 drives the rotating plate 400 to rotate via the protrusion 420. The overlapping area of ​​the vent hole 410 and the air inlet hole 310 gradually changes, and the air intake of the valve core 200 gradually changes. Because the airflow first passes through the baffle plate 300 and then enters the valve core 200, and then is transmitted out through the valve core 200, the air inlet hole 310 on the baffle plate 300 is much smaller than the air outlet hole on the valve core 200, so the flame size mainly depends on the air intake of the baffle plate 300. Therefore, the flame size can be precisely controlled by controlling the air intake of the baffle plate 300 through the rotating plate 400, while ensuring that the large and small fire channels simultaneously release air and flame.

[0045] The present invention also provides a gas stove including the above-mentioned stopcock valve. The present invention adjusts the air intake of the valve core 200 by setting a baffle plate 300 and a rotating plate 400. The size of the air vent 410 of the rotating plate 400 is set to vary circumferentially. The valve core 200 and the rotating plate 400 are in a concave-convex fit. When the valve core 200 rotates, it drives the rotating plate 400 to rotate, thereby controlling the air intake of the baffle plate 300 to precisely control the flame size.

[0046] The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of the invention or exceeding the scope defined by the appended claims.

Claims

1. A plug valve, characterized in that, include: A valve body, on which an air intake passage is provided; A valve core is disposed in the valve body. The bottom of the valve core is provided with an air inlet and a first slot. The air inlet is connected to the air inlet channel. A rotating plate, wherein a protrusion is provided on the rotating plate and the protrusion is inserted into the first slot; and a vent hole is provided on the rotating plate. A gear plate is provided on the side of the rotating plate away from the valve core and abuts against the rotating plate. An air inlet is provided on the gear plate. When the valve core is rotated, the valve core drives the rotating plate to rotate, the overlapping area of ​​the vent hole and the air inlet hole gradually changes, the air intake of the valve core gradually changes, and the change of the air intake is non-linear. The vent is configured as an arc-shaped fan-shaped hole, and the radial dimension of the vent changes continuously along the circumference of the rotating plate; The air intake is arranged circumferentially along the gear shift plate and includes a first circular hole, a plurality of second circular holes, and an elliptical hole; the first circular hole is located at the initial position of the gear shift plate circumferentially; the plurality of second circular holes are located in the middle part of the gear shift plate circumferentially, and the diameter of the second circular holes is smaller than that of the first circular hole; the elliptical hole is located at a 90° position of the gear shift plate circumferentially, and its area is approximately twice the area of ​​the first circular hole.

2. A plug valve according to claim 1, characterized in that, It also includes a valve needle, which is disposed in the valve core, and the rotating plate and the stop plate are sleeved on the valve needle.

3. A plug valve according to claim 2, characterized in that, It also includes a first sealing ring and a second sealing ring. The first sealing ring is sleeved on the valve needle, the rotating plate and the stop plate are sleeved on the first sealing ring, and the second sealing ring is disposed on the outside of the rotating plate and abuts against the stop plate.

4. A plug valve according to claim 2, characterized in that, It also includes a knob rod, which is inserted into the valve body. The knob rod is provided with a pin, and the valve core is provided with a second slot. The pin is inserted into the second slot, and the bottom of the knob rod is provided with a groove. One end of the valve needle is provided in the groove.

5. A plug valve according to claim 4, characterized in that, The valve body is provided with a detachable fixing frame. The knob rod passes through the fixing frame and is inserted into the valve body. A micro switch is provided on one side of the valve body. A pressure plate is sleeved on the knob rod. When the knob rod is pressed down, the pressure plate triggers the micro switch.

6. A plug valve according to claim 2, characterized in that, The valve body is also provided with a main ignition channel and a secondary ignition channel, which are located on both sides of the air intake channel. A solenoid valve is installed in the air intake channel.

7. A plug valve according to claim 6, characterized in that, It also includes a bottom cover and a lever. The bottom cover is connected to the bottom of the valve body. The lever is disposed in the bottom cover and has a paddle on it. When the valve needle is pressed down, it pushes the paddle, and the lever rotates, thereby pushing the solenoid valve to open.

8. A gas stove, characterized in that, The plug valve includes any one of claims 1-7.

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