Gas valve and stove

Abstract

The utility model relates to a gas valve and a stove, and the gas valve comprises a valve body which is provided with a valve core cavity, a gas inlet channel and a gas outlet channel, and the gas inlet channel and the gas outlet channel intersect in the valve core cavity; the valve element is rotationally mounted in the valve element cavity so as to adjust the air outlet flow; one end of the valve rod extends into the valve body and is combined with the valve element, and the valve rod is used for controlling the valve element to rotate; the operating part is arranged on the valve rod in a sleeving manner and can freely rotate around the valve rod; the angle sensor is provided with a rotatable detection head, the angle sensor is used for correspondingly outputting a detection signal according to the rotation angle of the detection head, and a gear transmission assembly is arranged between the operation piece and the detection head. When the gas valve is used, a user can rotate the operation piece to enable the angle sensor to output detection signals representing different rotation angles. The detection signals of different rotation angles can be used for indicating the fan to set different wind speed gears and can also be used for indicating the timer to set different timing lengths.

Description

Technical Field

[0001] The present application relates to the field of gas appliances, and in particular to a gas valve and a stove. Background Art

[0002] A gas valve is one of the most important components in a gas appliance. It generally consists of a valve body, a valve core, and a valve stem. The valve body has a valve core cavity, within which the valve core is rotatably mounted. The inlet and outlet passages converge at the valve core cavity. One end of the valve stem extends into the valve body and engages the valve core, controlling its rotation. As the valve stem rotates with the valve core, the flow area of ​​the inlet and outlet passages changes, causing the gas output from the valve body to change accordingly.

[0003] After the gas valve is pressed and rotated open by the user, it is generally necessary to turn on the fan that absorbs the oil smoke and the timer that regularly shuts off the air intake channel. Since devices such as fans or timers have different setting levels, such as different wind speed gears and different timing lengths, it is difficult to freely control them by directly triggering the opening or closing through the valve stem linkage. Utility Model Content

[0004] Based on this, it is necessary to provide a gas valve and a stove to address the above technical problems.

[0005] The gas valve of this application includes:

[0006] The valve body comprises a valve core cavity and an air inlet channel and an air outlet channel intersecting the valve core cavity;

[0007] A valve core is rotatably mounted in the valve core cavity to adjust the outlet flow rate;

[0008] A valve stem, one end of which extends into the valve body and is coupled to the valve core, for manipulating the rotation of the valve core;

[0009] An operating member is sleeved on the valve stem and can rotate freely around the valve stem;

[0010] The angle sensor comprises a rotatable detection head, the angle sensor being configured to output a detection signal corresponding to the rotation angle of the detection head, and a gear transmission assembly being provided between the operating member and the detection head. Several optional embodiments are provided below, but these are not intended to be additional limitations of the overall scheme described above, but rather to provide further supplements or optimizations. Each optional embodiment may be combined with the overall scheme described above, or multiple optional embodiments may be combined, provided there are no technical or logical inconsistencies.

[0011] Optionally, the operating member has a ring gear engaged with the gear transmission assembly.

[0012] Optionally, the gear transmission assembly includes a transmission gear that is sleeved on the outer circumference of the detection head and rotates synchronously with the detection head.

[0013] Optionally, the gas valve includes a circuit board, the circuit board is provided with the angle sensor, and a circuit slot electrically connected to the angle sensor, and the circuit slot is used to output the detection signal to an external device.

[0014] Optionally, the gas valve includes a mounting box that is sleeved on the valve stem, the mounting box includes a box seat and a box cover, and the circuit board and the gear transmission assembly are both mounted on the box seat and shielded by the box cover.

[0015] Optionally, the circuit slot is exposed outside the installation box.

[0016] Optionally, the box cover is provided with a mounting hole for at least a portion of the operating member to extend into the interior of the mounting box, and a boss is provided on the surface of the box cover at the periphery of the mounting hole.

[0017] Optionally, the valve body is provided with a cover plate for closing the valve core cavity, and the mounting box is directly or indirectly fixed to the cover plate.

[0018] Optionally, the operating member includes an inner sleeve and an outer sleeve that rotate synchronously, the inner sleeve has a gear ring that engages with the gear transmission assembly, the inner sleeve and the outer sleeve are connected by a keyway structure arranged along the axial direction, and the outer sleeve is used for user operation and rotation.

[0019] The present application provides a cooker, comprising a main controller and a gas valve as described in the present application, wherein the gas valve has a solenoid valve for controlling the opening and closing of the air intake passage, and the main controller is configured to receive the detection signal and control the solenoid valve accordingly at a fixed time to close the air intake passage.

[0020] The gas valve and stove of this application have at least the following technical effects:

[0021] When using the gas valve of this application, the user rotates the operating member to cause the angle sensor to output detection signals representing different rotation angles. The detection signals of different rotation angles can be used to instruct the fan to set different wind speed gears, or to instruct the timer to set different timing lengths, so as to control the closing of the air inlet passage of the valve core cavity after the timing is reached, thereby improving the safety of the gas appliance. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a structural diagram of a gas valve in one embodiment of the present application;

[0023] Figure 2 for Figure 1 Assembly diagram of the gas valve;

[0024] Figure 3 for Figure 2 Schematic diagram of the structure of the middle valve body;

[0025] Figure 4 This is a schematic diagram of the modular structure of a stove in one embodiment of the present application;

[0026] Figure 5 This is a schematic diagram of the structure of the gas valve excluding the valve body in one embodiment of the present application;

[0027] Figure 6 for Figure 5 sectional view of

[0028] Figure 7 for Figure 5 Assembly diagram of

[0029] Figure 8 for Figure 7 Schematic diagram from another angle;

[0030] The reference numerals in the figures are described as follows:

[0031] 010, gas valve; 011, solenoid valve; 020, main controller; 030, display unit;

[0032] 100, valve body; 103, cover plate; 104, bracket;

[0033] 200, valve stem; 201, shift fork; 210, waterproof cover;

[0034] 300, operating member; 310, inner sleeve; 311, gear ring; 312, connecting groove; 313, mating section; 314, reduced diameter section; 315, gear ring section; 320, outer sleeve; 321, connecting key;

[0035] 400, circuit board; 401, circuit slot; 410, angle sensor; 411, detection head; 420, gear transmission assembly; 421, transmission gear;

[0036] 500, mounting box; 510, box seat; 511, clamping piece; 520, box cover; 521, mounting hole; 522, boss. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0038] It should be noted that when a component is referred to as being "connected" to another component, it may be directly connected to the other component or there may be an intermediate component. When a component is referred to as being "disposed on" another component, it may be directly disposed on the other component or there may be an intermediate component.

[0039] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application pertains. The terms used herein in the specification of this application are for the purpose of describing specific embodiments only and are not intended to limit this application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0040] In this application, the terms "comprises" and "comprising" and any variations thereof are intended to cover non-exclusive inclusions, for example, a system, product or apparatus comprising a list of elements is not necessarily limited to those elements expressly listed but may include other elements not expressly listed or inherent to such products or apparatuses.

[0041] In this application, the terms "corresponding," "corresponding," "matching," and "adapting," such as "B corresponding to A," "B corresponding to A," "A corresponds to B," or "B corresponds to A," indicate that B corresponds to A in shape, position, or function, and that B can be determined based on A. Determining B based on A does not mean determining B solely based on A; B can also be determined based on A and / or other information.

[0042] In this application, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood broadly. For example, they can mean fixed connection, detachable connection, or integration; they can mean mechanical connection, electrical connection, or mutual communication; they can mean direct connection or indirect connection through an intermediate medium, and they can enable internal communication between two elements or interaction between two elements. For those skilled in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0043] See also Figures 1 to 8 One embodiment of the present application provides a gas valve 010 comprising a valve body 100, a valve core, and a valve stem 200. The valve body 100 comprises a valve core cavity and an inlet and outlet passages that intersect the valve core cavity. The valve core is rotatably mounted within the valve core cavity to regulate the outlet gas flow. One end of the valve stem 200 extends into the valve body 100 and engages with the valve core, controlling the valve core's rotation. The valve stem 200 specifically includes a shift fork 201 for engaging the valve core.

[0044] The gas valve 010 includes an operating member 300 and an angle sensor 410. The operating member 300 is mounted on the valve stem 200 and can rotate freely around the valve stem 200. The angle sensor 410 can be an encoder or a potentiometer. The angle sensor 410 has a rotatable detection head 411, which outputs a detection signal based on the rotation angle of the detection head 411. A gear transmission assembly 420 is located between the operating member 300 and the detection head 411.

[0045] In this embodiment, after the user presses and rotates the gas valve 010 to open it, the user can rotate the operating member 300 to cause the angle sensor 410 to output detection signals indicating different rotation angles. These detection signals can be used to instruct the fan to set different wind speed levels or to set a timer to different timer durations, thereby controlling the valve core chamber's air intake passageway to shut off after the timer expires, thereby improving the safety of the gas appliance.

[0046] See also Figure 4 One embodiment of the present application provides a cooker, comprising a main controller 020 and a gas valve 010 as provided in various embodiments. Gas valve 010 includes a solenoid valve 011 that controls the opening and closing of an air intake passage. Main controller 020 is configured to receive a detection signal and, accordingly, time the solenoid valve 011 to close the air intake passage. In this case, main controller 020 functions as a timer. The cooker may further include a display unit 030, such as a liquid crystal display, connected to main controller 020. Main controller 020 is configured to control display unit 030 to display the current remaining time on the timer upon receiving the detection signal.

[0047] See also Figures 5 to 8 In some embodiments, the operating member 300 of the gas valve 010 includes a ring gear 311 that meshes with the gear transmission assembly 420. Specifically, the operating member 300 includes an inner sleeve 310 and an outer sleeve 320 that rotate synchronously. The outer sleeve 320 is configured for user operation and rotation. The inner sleeve 310 includes a ring gear 311 that meshes with the gear transmission assembly 420. The inner sleeve 310 and the outer sleeve 320 are connected by an axially arranged keyway structure. The inner sleeve 310 is provided with a connecting groove 312, and the outer sleeve 320 is provided with a connecting key 321. The connecting groove 312 and the connecting key 321 are detachably engaged along the axial direction of the valve stem 200, forming a mating keyway structure. The gear transmission assembly 420 includes a transmission gear 421, which is sleeved around the outer periphery of the detection head 411 and rotates synchronously with the detection head 411. The transmission gear 421 can directly or indirectly mesh with the ring gear 311 for transmission.

[0048] Furthermore, gas valve 010 includes a circuit board 400, which is equipped with an angle sensor 410 and a circuit slot 401 electrically connected to angle sensor 410. Circuit slot 401 is used to output detection signals to external devices. Circuit slot 401 is specifically exposed outside of the installation box 500 to facilitate connection with external devices.

[0049] The gas valve 010 includes a mounting box 500 that fits over the valve stem 200. The mounting box 500 comprises a base 510 and a cover 520. The circuit board 400 and the gear transmission assembly 420 are both mounted on the base 510 and shielded by the cover 520. The cover 520 defines a mounting hole 521, through which at least a portion of the operating member 300 extends. A boss 522 is formed on the surface of the cover 520, surrounding the mounting hole 521. The inner sleeve 310 includes a mating section 313 that engages with the outer sleeve 320 via a keyway structure; a reduced diameter section 314 formed by the mating section 313 tapering toward the valve body 100; and a gear ring 311 formed by the expanded diameter of the reduced diameter section 314 and extending into the mounting box 500. The radial dimension of the gear ring 311 is larger than that of the mounting hole 521. The mounting hole 521 is open along one side of the cover 520 to facilitate installation of the inner sleeve 310 relative to the mounting box 500.

[0050] A waterproof sleeve 210 is partially secured to the valve stem 200 within the outer sleeve 320. The waterproof sleeve 210 forms a clearance fit within the inner wall of the outer sleeve 320, allowing the outer sleeve 320 to rotate freely relative to the waterproof sleeve 210. The radial dimension of the waterproof sleeve 210 is greater than the radial dimension of the mating section 313 (in the radial direction of the valve stem 200). The waterproof sleeve 210 and the inner sleeve 310 have a clearance relative to the mating section 313 along the axial direction of the valve stem 200, facilitating unlocking of the valve stem 200 by pushing it toward the valve body 100.

[0051] See also Figure 3 ,as well as Figures 5 to 8 The valve body 100 is provided with a cover plate 103 for sealing the valve core cavity, and the mounting box 500 is directly or indirectly fixed to the cover plate 103. In the indirect fixing method, a bracket 104 is fixed to the cover plate 103, and the mounting box 500 is fixed to the bracket 104 to indirectly fix to the cover plate 103. For example, a clamping member 511 for clamping and fixing the bracket 104 is fixed to the outer periphery of the box seat 510 of the mounting box 500.

[0052] The technical features of the above-described embodiments may be combined in any manner. To simplify the description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as no contradiction exists between these combinations of technical features, they should be considered to be within the scope of this specification. When technical features of different embodiments are embodied in the same drawing, it can be deemed that the drawing also discloses examples of combinations of the various embodiments involved.

[0053] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that a person skilled in the art may make various modifications and improvements without departing from the spirit of the present application, and such modifications and improvements are all within the scope of protection of the present application.

Claims

1. Gas valve, characterized in that, include: The valve body comprises a valve core cavity and an air inlet channel and an air outlet channel intersecting the valve core cavity; A valve core is rotatably mounted in the valve core cavity to adjust the outlet flow rate; A valve stem, one end of which extends into the valve body and is coupled to the valve core, for manipulating the rotation of the valve core; An operating member is sleeved on the valve stem and can rotate freely around the valve stem; The angle sensor has a rotatable detection head, and the angle sensor is used to output a detection signal according to the rotation angle of the detection head. A gear transmission component is provided between the operating member and the detection head.

2. The gas valve according to claim 1, characterized in that The operating member has a ring gear engaged with the gear transmission assembly.

3. The gas valve according to claim 2, characterized in that: The gear transmission assembly includes a transmission gear sleeved on the outer periphery of the detection head and rotating synchronously with the detection head.

4. The gas valve according to claim 1, characterized in that The gas valve includes a circuit board, the circuit board is provided with the angle sensor, and a circuit slot electrically connected to the angle sensor, and the circuit slot is used to output the detection signal to an external device.

5. The gas valve according to claim 4, characterized in that: The gas valve comprises an installation box which is sleeved on the valve stem. The installation box comprises a box seat and a box cover. The circuit board and the gear transmission assembly are both installed on the box seat and shielded by the box cover.

6. The gas valve according to claim 5, characterized in that The circuit slot is exposed outside the installation box.

7. The gas valve according to claim 5, characterized in that The box cover is provided with a mounting hole for at least a portion of the operating member to extend into the interior of the mounting box, and a boss is provided on the surface of the box cover at the periphery of the mounting hole.

8. The gas valve according to claim 5, characterized in that The valve body is provided with a cover plate for closing the valve core cavity, and the mounting box is directly or indirectly fixed to the cover plate.

9. The gas valve according to claim 1, characterized in that The operating member includes an inner sleeve and an outer sleeve that rotate synchronously. The inner sleeve has a gear ring that engages with the gear transmission assembly. The inner sleeve and the outer sleeve are connected by a keyway structure arranged along the axial direction. The outer sleeve is used for the user to operate and rotate.

10. A cooking appliance, characterized in that: It comprises a main controller and a gas valve according to any one of claims 1 to 9, wherein the gas valve has a solenoid valve for controlling the on-off of the air intake passage, and the main controller is configured to receive the detection signal and control the solenoid valve accordingly to close the air intake passage.

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