Push cone push-through stopcock
The push-cone type plug valve with inclined structure and push rod abutment solves the problems of complex opening of solenoid valve, unclear operation logic and complex structure of integrated stove plug valve. It realizes gas control with high safety and clear operation logic, reduces manufacturing cost and improves reliability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- NINGBO JIADA GAS APPLIANCE CO LTD
- Filing Date
- 2026-04-13
- Publication Date
- 2026-05-29
AI Technical Summary
Existing integrated stove stopcock valves suffer from problems such as complex solenoid valve opening methods, unclear operating logic, complex structure, high manufacturing costs, and uncoordinated component matching, resulting in insufficient safety and reliability.
The inclined surface structure abuts against the push rod, converting the axial pressing motion of the knob rod into the axial movement of the push rod. The simple mechanical structure integrates safety locking and fire control. The tapered surface and limiting flange ensure the reliability and coaxiality of the movement, and the reset component ensures the reliable reset of each component.
It achieves gas control with clear operating logic and high safety, avoids misoperation, reduces manufacturing costs and improves reliability and feel, and ensures that the gas is cut off immediately after releasing the hand to prevent gas leakage.
Smart Images
Figure CN122107160A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the technical field of plug valves, and more particularly to a push-button cone-shaped plug valve. Background Technology
[0002] Plug valves are core components in kitchen appliances such as integrated cooktops and gas stoves, controlling the gas supply and adjusting the flame. As consumers' demands for the safety and ease of use of kitchen appliances continue to rise, the technology of plug valves for integrated cooktops is also constantly evolving. Currently, plug valves for integrated cooktops on the market are mainly divided into two categories: purely mechanical plug valves and plug valves with solenoid valves.
[0003] A purely mechanical plug valve directly controls the on / off state and flow of gas by rotating the valve core. This type of valve has a simple structure and low cost, but its main drawback is the lack of flameout protection. When the flame is extinguished due to wind, spilled soup, or other unexpected events, the valve cannot automatically cut off the gas supply, leading to continuous gas leakage and posing a serious safety hazard.
[0004] A plug valve with a solenoid valve adds a solenoid valve and a thermocouple (or ionization sensing needle) to a mechanical valve core, enabling it to automatically cut off the gas supply in the event of accidental flameout, thus meeting safety standards. However, existing plug valves with solenoid valves still have the following technical problems: First, the opening mechanism of solenoid valves is complex. In existing technologies, the opening of solenoid valves usually requires independent electrical control or complex linkage mechanisms. For example, some products use microswitches to detect the knob's pressed state to control the solenoid valve's energization, which increases the number of electrical components, raises the failure rate, and increases manufacturing costs. Other products, while using mechanical means to actuate the solenoid valve, typically design their actuation mechanism as an independent lever or cam structure, resulting in a large number of parts, complex assembly, and a large footprint.
[0005] Secondly, the operational logic is not clear enough. In existing products, the linkage between the operation steps such as pressing, rotating, igniting, and releasing is not intuitive enough. Some products require rotating before pressing, or requiring continuous pressing for a long time after pressing before releasing, resulting in a poor user experience. Especially when closing the valve, users often need to rotate to close the gas outlet before releasing, which is cumbersome and prone to failure to cut off the gas supply in time due to incorrect operation sequence.
[0006] Third, the valve body has a complex structure and high manufacturing cost. Existing plug valves mostly use metal materials formed through multiple machining processes. Internal channels require multiple drilling and tapping operations, resulting in long processing cycles, high costs, and heavy weight. Furthermore, metal valve bodies are prone to rust and corrosion in humid environments, affecting their service life.
[0007] Fourth, the reset coordination between various moving parts is not coordinated enough. In existing valves, multiple moving parts such as knobs, valve cores, inclined plane structures, and solenoid valve push rods are prone to jamming or asynchronous operation during pressing and reset, resulting in stiff operation or incomplete reset, affecting the reliability of use. Summary of the Invention
[0008] (a) Technical problems to be solved The technical problem this invention aims to solve is to provide a push-button cone-shaped plug valve. Through a beveled structure that abuts against the push rod, the axial pressing motion of the knob is converted into the axial movement of the push rod. This provides reliable mechanical transmission, eliminates the need for electrical control, and integrates safety locking and firepower adjustment. The operation logic is clear and the safety is high. When pressed, the push rod moves away from the valve core cavity, opening the solenoid valve and connecting the gas path. Releasing the knob immediately cuts off the gas supply, preventing misoperation. The simple mechanical structure enables the functions of pressing to open the solenoid valve and rotating to select the gas outlet channel, while ensuring that all components reliably reset after release.
[0009] (II) Technical Solution The solution adopted by the present invention to solve the above-mentioned technical problem is a push-button cone-shaped plug valve, including... Valve body, wherein the valve body is provided with One air intake channel; At least one air outlet; A valve core receiving cavity; A solenoid valve receiving cavity is located between the air intake passage and the valve core receiving cavity and is in communication with both; A solenoid valve is disposed within the solenoid valve accommodating cavity and is used to control the opening and closing of the air intake passage and the valve core accommodating cavity; A valve core is rotatably disposed within the valve core receiving cavity, and the valve core is provided with at least one venting channel for selectively communicating the valve core receiving cavity with at least one of the venting channels; A knob rod is connected to the valve core and is axially movable through the valve core receiving cavity; The knob lever has a beveled structure at its bottom end, and the solenoid valve has a push rod at one end near the valve core cavity. The beveled surface of the beveled structure abuts against the end of the push rod. When the knob lever is axially pressed, the beveled surface of the beveled structure pushes the push rod downward, causing the push rod to move away from the valve core cavity.
[0010] In some embodiments, the number of air outlet channels is two; the valve core is provided with two air outlet channels to achieve control of dual ring fire or dual burners.
[0011] The above solution uses a sloping structure to abut against the push rod, converting the axial pressing motion of the knob into the axial movement of the push rod. The mechanical transmission is reliable and requires no electrical control, achieving the integration of safety locking and firepower adjustment. The operation logic is clear and the safety is high. When pressed, the push rod moves away from the valve core cavity, opening the solenoid valve and connecting the gas path. Releasing the hand cuts off the gas supply, preventing misoperation.
[0012] In some embodiments, the inclined structure is a tapered structure, and its tapered surface abuts against the end of the push rod.
[0013] Specifically, the conical surface is a 360° continuous annular inclined surface, so that no matter what angle the knob is rotated to, the end of the push rod can make good contact with the conical surface, ensuring the reliability of pressing and pushing.
[0014] In some embodiments, the outer surface of the tapered structure forms the tapered surface; the tapered surface gradually tapers from top to bottom along the axial direction of the knob rod, and the upper diameter of the tapered surface is larger than the lower diameter.
[0015] Using the above scheme, the conical surface gradually tapers from top to bottom, so that when pressed down, the conical surface generates an inward radial squeezing force on the push rod, efficiently converting the axial motion into the axial movement of the push rod; the upper diameter is larger than the lower diameter, so that when the end of the push rod slides down on the conical surface, the contact point gradually moves inward, and the push rod is gradually pushed into the solenoid valve, resulting in smooth movement.
[0016] In some embodiments, the bottom end of the conical surface is provided with a limiting flange extending radially outward, and the end of the push rod is located above the limiting flange; the limiting flange is used to abut against the push rod during pressing to restrain the radial sway of the conical structure.
[0017] In some embodiments, the limiting flange is an annular sheet structure.
[0018] In some embodiments, the connection between the limiting flange and the tapered surface is an inwardly concave arc-shaped surface.
[0019] Specifically, the limiting flange extends radially outward from the bottom end of the conical surface. When the user presses the knob, the conical structure moves downward, and the conical surface pushes the push rod to move inward along the axial direction of the push rod into the solenoid valve. During this process, the conical structure is prone to radial wobbling when pressed eccentrically. To solve this problem, the present invention provides a limiting flange at the bottom end of the conical surface. After the push rod is pushed inward, the upper surface or outer edge of the limiting flange forms a sliding contact with the end or side wall of the push rod, providing a radial support point near the bottom end of the conical structure. This support point, together with the connection point at the top of the conical structure, effectively constrains the radial degree of freedom of the conical structure, preventing it from tilting and wobbling during pressing, thereby avoiding abnormal contact or jamming between the conical surface and the push rod, ensuring the smoothness of the pressing action and the reliability of the reset.
[0020] In some embodiments, the tapered structure is arranged from top to bottom along the axial direction of the knob rod, including an annular portion, a tapered portion, and a limiting flange; the outer surface of the tapered portion forms the tapered surface, and the outer surface of the annular portion and the inner wall of the valve core receiving cavity are in clearance fit.
[0021] In some embodiments, the outer diameter of the annular portion and the outer diameter of the limiting flange are the same, forming upper and lower double guide points to improve the coaxiality of the conical structure during axial movement; and both the annular portion and the limiting flange are clearance-fitted with the inner wall of the valve core accommodating cavity, so that the guidance is smooth and without jamming.
[0022] The above solution uses a clearance fit between the annular part and the inner wall of the valve core cavity to provide radial guidance and ensure the coaxiality of the knob rod when it is pressed and reset.
[0023] In some embodiments, the bottom end of the inclined structure is connected to a first reset member, which gives the inclined structure a tendency to always move upward along the axial direction of the knob rod.
[0024] Using the above scheme, the first reset component acts directly on the inclined structure, providing axial reset force to ensure that the inclined structure can automatically reset upward after release; the first reset component gives the inclined structure a constant upward tendency, so that the push rod and the conical surface maintain continuous contact, eliminating gaps and avoiding empty strokes during pressing.
[0025] In some embodiments, the knob rod extends partially out of the valve core receiving cavity and partially rests within the valve core receiving cavity to engage with the valve core; a valve needle is disposed within the valve core and arranged axially along the knob rod, the valve needle passing through both ends of the valve core, one end being connected to the portion of the knob rod located within the valve core receiving cavity, and the other end being connected to the inclined structure; a second reset member is disposed between the top end of the valve needle and the valve core, the second reset member giving the valve needle a tendency to move upward along the axial direction; a third reset member is disposed between the portion of the knob rod extending out of the valve core receiving cavity and the outer end face of the valve body, the third reset member giving the knob rod a tendency to move upward along the axial direction.
[0026] In some embodiments, the central axes of the knob, the valve needle, the valve core, and the inclined structure are on the same straight line to ensure coaxiality.
[0027] In some embodiments, the first reset member, the second reset member, and the third reset member are all compression springs.
[0028] In some embodiments, the outer wall of the portion of the knob rod that is placed inside the valve core receiving cavity is provided with two symmetrical ribs, and the top of the valve core is provided with two grooves that can cooperate with the two ribs, so that the knob rod can drive the valve core to rotate synchronously, and the ribs are always partially placed in the grooves.
[0029] In some embodiments, the bottom end of the knob rod is provided with a first mounting groove, and the top end of the valve core is provided with a second mounting groove; the knob rod portion is placed in the second mounting groove; the valve needle portion extends into the first mounting groove, and its top end is provided with a flange; one end of the second reset member abuts against the flange, and the other end abuts against the bottom end of the second mounting groove; a limiting piece is provided on the portion of the knob rod extending out of the valve core receiving cavity; one end of the third reset member abuts against the limiting piece, and the other end abuts against the top end of the valve body located in the valve core receiving cavity; the bottom end of the inclined structure is provided with a third mounting groove, the first reset member portion is placed in the third mounting groove, and the other end abuts against the bottom end of the valve core receiving cavity of the valve body.
[0030] The above scheme connects the valve needle through the valve core to the knob rod and the inclined structure, reliably transmitting the pressing and resetting force to the inclined structure. The second resetting component provides the resetting force, ensuring smooth relative movement between the valve needle and the valve core. The third resetting component provides the resetting force, enabling the knob rod to automatically pop out and reset. The coordinated work of the first, second, and third resetting components allows the pressing and resetting processes to be applied in stages, resulting in a smooth feel and stable movement. This ensures that each moving part returns to its independent position, avoiding mutual interference and improving the feel and reliability of operation.
[0031] In some embodiments, the solenoid valve includes an axially movable push rod, a sealing block disposed at one end of the push rod away from the valve core receiving cavity, and a fourth reset member capable of giving the sealing block a tendency to always move toward the valve core receiving cavity, the sealing block being used to switch the solenoid valve receiving cavity and the valve core receiving cavity on and off.
[0032] In some embodiments, the push rod and the sealing block are detachably connected, or the push rod is integrally formed on the sealing block.
[0033] In some embodiments, the fourth reset element is a compression spring.
[0034] Specifically, when the knob is axially pressed, the inclined surface of the inclined structure pushes the push rod downwards, causing the push rod to move axially away from the valve core accommodating cavity. The solenoid valve is opened, thereby connecting the solenoid valve accommodating cavity and the valve core accommodating cavity. Rotating the knob causes the valve core to rotate 90° forward, connecting the two ventilation channels on the valve core with the two outlet channels. Since the intake channel and the solenoid valve accommodating cavity are always connected, the gas can enter the two outlet channels via the intake channel, the solenoid valve accommodating cavity, the valve core accommodating cavity, and the two ventilation channels on the valve core. After releasing the knob, in the first... Under the action of the positioning element, the second reset element, and the third reset element, the inclined structure, the valve needle and the valve core fixedly connected thereto, and the knob rod can move upward axially to reset under the action of the reset force. At the same time, under the reset force of the fourth reset element, the sealing block and the push rod move axially towards the direction close to the valve core accommodating cavity. When the limiting flange of the inclined structure abuts against the bottom end of the push rod, the inclined structure, the valve needle and the valve core fixedly connected thereto, and the knob rod stop moving and reset to the position. Then, after rotating the knob rod to make it drive the valve core to rotate 90° in the opposite direction, the two ventilation channels and the two exhaust channels on the valve core will be cut off.
[0035] In some embodiments, a limiting structure is provided on the valve body, and another limiting structure that cooperates with the limiting structure is provided on the knob rod or valve core, so that the range of forward or reverse rotation of the knob rod to the valve core is 90°.
[0036] Using the above scheme, the push rod and the sealing block are linked, so that when the inclined structure pushes the push rod, the sealing block moves synchronously to open / close the gas circuit; the fourth reset component makes the sealing block always move towards the valve core accommodating cavity, so that when there is no external force pressing, the sealing block automatically closes the gas circuit to achieve flameout protection.
[0037] In some embodiments, the valve body is provided with a connecting portion between the solenoid valve accommodating cavity and the valve core accommodating cavity, the connecting portion being provided with at least one through hole for communicating the solenoid valve accommodating cavity and valve core accommodating cavity; and the connecting portion being provided with a through hole for the push rod to extend into the valve core accommodating cavity and engage with the inclined surface of the inclined structure.
[0038] In some embodiments, the connecting part has a through hole at its center, and the push rod is always partially placed inside the through hole; the connecting part has three through holes evenly spaced around the through hole to ensure sufficient ventilation cross-sectional area; when the knob is axially pressed, the inclined surface of the inclined structure pushes the push rod downward, causing the push rod to move axially away from the valve core receiving cavity, the solenoid valve is opened, the sealing block disengages from the connecting part, and the through hole is exposed, thereby connecting the solenoid valve receiving cavity and the valve core receiving cavity; after the knob is released, the sealing block and the push rod move axially towards the valve core receiving cavity under the reset force of the fourth reset member, until the sealing block abuts against the connecting part, sealing the through hole, thus cutting off the solenoid valve receiving cavity and the valve core receiving cavity.
[0039] The above solution separates the gas flow channel from the push rod movement channel in the connecting part, ensuring smooth push rod movement and sufficient gas flow.
[0040] In some embodiments, the valve body is a one-piece molded structure.
[0041] In some embodiments, the valve body is a one-piece molded plastic structure, eliminating the need for separate assembly, thus eliminating the risk of leakage at the connection surfaces, reducing the number of parts and assembly steps, lowering manufacturing costs, and, being made of plastic, being lightweight, corrosion-resistant, and highly efficient in production.
[0042] Working principle of the invention: (a) Start-up process Press: The user presses the knob down, and the knob moves downward against the elastic force of the third reset component. At the same time, the valve needle drives the conical structure to move downward, overcoming the elastic force of the first reset component.
[0043] Pushing the solenoid valve: When the conical structure moves downward, its conical surface pushes the push rod downward; as the conical surface gradually contracts from top to bottom, the downward-moving conical surface will squeeze the push rod inward, causing the push rod to overcome the elastic force of the fourth reset element and move away from the valve core accommodating cavity.
[0044] Open the gas path: The push rod moves the sealing block away from the connection part, exposing the through hole; at this time, the solenoid valve is opened, and the air intake channel is connected to the valve core cavity; the gas flows through the air intake channel, the solenoid valve cavity, the through hole, and the valve core cavity in sequence, and arrives at the valve core to wait.
[0045] Rotary ignition: The user rotates the knob while holding it down; the knob rotates synchronously with the valve core through the cooperation of the rib and the groove; when the valve core rotates to the preset position (such as rotating 90° forward), the two air passages on the valve core are aligned and connected with the two air outlet passages respectively.
[0046] Combustion: The gas flows out from the gas outlet and is ignited and burned by the burner head.
[0047] Hold the press: The user holds the press for about 3-5 seconds to allow the thermocouple to be heated by the flame, generating enough current to keep the solenoid valve engaged.
[0048] Release: The user releases the knob; at this time, the solenoid valve is kept open by the current generated by the thermocouple, and the gas supply continues.
[0049] (ii) Shutdown process Gas shut-off upon release: When the user needs to shut off the gas, release the knob; at this time, the holding current of the solenoid valve disappears, and under the elastic force of the fourth reset component, the sealing block and push rod move towards the valve core cavity. The sealing block abuts against the connecting part, sealing the through hole, cutting off the connection between the solenoid valve cavity and the valve core cavity, and the gas supply is immediately interrupted, and the flame is extinguished.
[0050] Component reset: Simultaneously, under the combined action of the first reset component, the second reset component, and the third reset component, the inclined structure, valve needle, valve core, and knob rod move upward to reset; when the limiting flange abuts against the end of the push rod, the reset stops, and the knob rod returns to its initial position.
[0051] Rotation to return to center: The user rotates the knob in the opposite direction (e.g., 90° in the opposite direction) to disconnect the air passage from the air outlet on the valve core, preparing it for the next use.
[0052] (III) Beneficial Effects Compared with the prior art, the present invention designs a push-cone type plug valve. (1) The present invention uses a sloping structure to abut against the push rod, which converts the axial pressing motion of the knob rod into the axial movement of the push rod. The mechanical transmission is reliable and no electrical control is required. It realizes the integration of safety locking and firepower adjustment. The operation logic is clear and the safety is high. When pressing, the push rod moves away from the valve core cavity, opens the solenoid valve and connects the gas path. Releasing the hand cuts off the gas and prevents misoperation. The simple mechanical structure realizes the function of pressing to open the solenoid valve and rotating to select the gas outlet channel, and ensures that each component can reliably reset after being released. (2) The tapered surface of the present invention gradually tapers from top to bottom, so that when pressed down, the tapered surface generates an inward radial squeezing force on the push rod, which efficiently converts the axial motion into the axial movement of the push rod; the upper diameter is larger than the lower diameter, so that when the end of the push rod slides down on the tapered surface, the contact point gradually moves inward, and the push rod is gradually pushed into the solenoid valve, and the movement is smooth. (3) The end of the push rod of the present invention is located above the limiting flange, which effectively constrains the radial degree of freedom of the conical structure and prevents it from deflecting and shaking during the pressing process, thereby avoiding abnormal contact or jamming between the conical surface and the push rod, and ensuring the smoothness of the pressing action and the reliability of the reset. (4) The annular part of the present invention contacts the inner wall of the valve core receiving cavity, which plays a radial guiding role and ensures the coaxiality of the knob rod when it is pressed and reset; (5) The first reset component of the present invention acts directly on the inclined structure, providing axial reset force to ensure that the inclined structure can automatically reset upward after release; the first reset component gives the inclined structure a constant upward tendency, so that the push rod and the conical surface maintain continuous contact, eliminating gaps and avoiding empty stroke of pressing; and the valve needle passes through the valve core to connect the knob rod and the inclined structure, reliably transmitting the pressing force and reset force to the inclined structure; the second reset component provides reset force to make the relative movement between the valve needle and the valve core smooth; the third reset component provides reset force to enable the knob rod to automatically pop out and reset; the coordinated work of the first reset component, the second reset component and the third reset component makes the pressing and reset process subjected to force in stages, with a soft feel and smooth movement; ensuring that each moving part returns to its position independently, avoiding mutual interference, and improving the operating feel and reliability; (6) The push rod and the sealing block of the present invention are linked, so that when the inclined structure pushes the push rod, the sealing block moves synchronously to open / close the gas path; the fourth reset member makes the sealing block always move toward the valve core accommodating cavity, so that when there is no external force pressing, the sealing block automatically closes the gas path to achieve flameout protection; (7) The connecting part of the present invention separates the gas passage from the push rod movement passage to ensure smooth push rod movement and sufficient gas flow; and the design of three through holes can ensure sufficient ventilation cross-sectional area. Attached Figure Description
[0053] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0054] Figure 1 This is a schematic diagram of the first angle structure of a push-cone type plug valve according to the present invention; Figure 2This is a schematic diagram of the second angle structure of a push-cone type plug valve according to the present invention; Figure 3 for Figure 2 Sectional view at point AA; Figure 4 for Figure 3 Enlarged view of point B in the middle; Figure 5 for Figure 3 Enlarged view of point C in the middle; Figure 6 This is a schematic diagram of the third angle structure of a push-cone type plug valve according to the present invention; Figure 7 for Figure 6 Sectional view at point DD; Figure 8 for Figure 6 Sectional view at EE; Figure 9 for Figure 6 Sectional view at FF; Figure 10 This is a schematic diagram of the valve body of the present invention; Figure 11 for Figure 10 Enlarged diagram of point G in the middle.
[0055] The component names corresponding to the various reference numerals in the figure are as follows: 100, valve body; 101, air inlet passage; 102, air outlet passage; 103, valve core receiving cavity; 104, solenoid valve receiving cavity; 105, connecting part; 1051, through hole; 1052, perforation; 200, solenoid valve; 201, push rod; 202, sealing block; 203, fourth reset component; 300, valve core; 301, air passage; 302, groove; 3 03. Second mounting groove; 400. Knob rod; 401. Rib; 402. First mounting groove; 403. Limiting piece; 500. Conical structure; 501. Conical surface; 502. Limiting flange; 503. Annular part; 504. Conical part; 505. Arc-shaped surface; 506. Third mounting groove; 600. First reset component; 700. Valve needle; 701. Flange; 800. Second reset component; 900. Third reset component. Detailed Implementation
[0056] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of the invention.
[0057] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.
[0058] The following specific examples illustrate the implementation of this application. Those skilled in the art can easily understand other advantages and effects of this application from the content disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. This application can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this application. It should be noted that, in the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0059] It should be noted that the following description covers various aspects of embodiments within the scope of the appended claims. It will be apparent that the aspects described herein can be embodied in a wide variety of forms, and any particular structure and / or function described herein is merely illustrative. Based on this application, those skilled in the art will understand that one aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number and aspects set forth herein can be used to implement the device and / or practice the method. Additionally, this device and / or method can be implemented using structures and / or functionalities other than one or more of the aspects set forth herein.
[0060] It should also be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of this application. The drawings only show the components related to this application and are not drawn according to the actual number, shape and size of the components in the actual implementation. In the actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.
[0061] Additionally, specific details are provided in the following description to facilitate a thorough understanding of the examples. However, those skilled in the art will understand that practice can be carried out without these specific details.
[0062] The technical solutions provided by the various embodiments of this application are described below with reference to the accompanying drawings.
[0063] like Figures 1-11 As shown, the present invention provides a push-button cone-shaped plug valve, comprising a valve body 100, wherein the valve body 100 is provided with an air inlet channel 101; two air outlet channels 102; a valve core receiving cavity 103; a solenoid valve receiving cavity 104 located between the air inlet channel 101 and the valve core receiving cavity 103 and communicating with both; a solenoid valve 200 disposed in the solenoid valve receiving cavity 104 for controlling the opening and closing of the air inlet channel 101 and the valve core receiving cavity 103; and a valve core 300 rotatably disposed in the valve core receiving cavity 103, wherein the valve core 300 is provided with two air passages 301. The valve core accommodating cavity 103 is used to selectively connect the valve core 300 to the two air outlet channels 102; a knob 400 is connected to the valve core 300 and is axially movable through the valve core accommodating cavity 103; wherein, the bottom end of the knob 400 is provided with a bevel structure, and the end of the solenoid valve 200 near the valve core accommodating cavity 103 is provided with a push rod 201, the bevel of the bevel structure abuts against the end of the push rod 201; when the knob 400 is axially pressed, the bevel of the bevel structure pushes the push rod 201 downward, causing the push rod 201 to move in a direction away from the valve core accommodating cavity 103. Specifically, there are two air outlet channels 102; the valve core 300 is provided with two air passages 301 to realize the control of dual ring fire or dual burners. By adopting the above scheme, the axial pressing motion of the knob 400 is converted into the axial movement of the push rod 201 through the abutment of the inclined structure. The mechanical transmission is reliable and no electrical control is required. It realizes the integration of safety locking and fire adjustment, with clear operation logic and high safety. When pressed, the push rod 201 moves away from the valve core receiving cavity 103, opens the solenoid valve 200, and connects the gas circuit. Releasing the hand cuts off the gas supply to prevent misoperation.
[0064] In some embodiments, the inclined structure is a conical structure 500, whose conical surface 501 abuts against the end of the push rod 201. Specifically, the conical surface 501 is a 360° continuous annular inclined surface, ensuring good contact between the end of the push rod 201 and the conical surface 501 regardless of the angle to which the knob rod 400 is rotated, thus guaranteeing the reliability of the pressing and pushing action. In some embodiments, the outer surface of the conical structure 500 constitutes the conical surface 501; the conical surface 501 gradually tapers from top to bottom along the axial direction of the knob rod 400, and the upper diameter of the conical surface 501 is larger than the lower diameter. Using the above scheme, the conical surface 501 gradually tapers from top to bottom, so that when pressed down, the conical surface 501 generates an inward radial squeezing force on the push rod 201, efficiently converting axial motion into axial movement of the push rod 201; the upper diameter is larger than the lower diameter, so that when the end of the push rod 201 slides downward on the conical surface 501, the contact point gradually moves inward, and the push rod 201 is gradually pushed into the solenoid valve 200, resulting in smooth movement. In some embodiments, the bottom end of the conical surface 501 is provided with a limiting flange 502 extending radially outward, and the end of the push rod 201 is located above the limiting flange 502; the limiting flange 502 is used to abut against the push rod 201 when the knob rod 400 moves axially upward, thereby limiting the maximum axial travel of the knob rod 400. In some embodiments, the limiting flange 502 is an annular plate structure. In some embodiments, the connection between the limiting flange 502 and the conical surface 501 is an inwardly recessed arc-shaped surface 505. Specifically, the limiting flange 502 extends radially outward from the bottom end of the conical surface 501. When the user presses the knob lever 400, the conical structure 500 moves downward, and the conical surface 501 pushes the push rod 201 to move inward along the axial direction of the push rod 201 into the solenoid valve 200. During this process, the conical structure 500 is prone to radial wobble when pressed eccentrically. To solve this problem, the present invention provides a limiting flange 502 at the bottom end of the conical surface 501. After the push rod 201 is pushed inward, the upper surface or outer edge of the limiting flange 502 forms a sliding contact with the end or sidewall of the push rod 201, providing a radial support point for the conical structure 500 near its bottom end. The support point, together with the connection point at the top of the conical structure 500, effectively constrains the radial degree of freedom of the conical structure 500, preventing it from tilting and wobbling during pressing. This avoids abnormal contact or jamming between the conical surface 501 and the push rod 201, ensuring the smoothness of the pressing action and the reliability of the reset. In some embodiments, the conical structure 500 is arranged sequentially from top to bottom along the axial direction of the knob rod 400, including an annular portion 503, a conical portion 504, and a limiting flange 502; the outer surface of the conical portion 504 forms the conical surface 501, and the outer surface of the annular portion 503 and the inner wall of the valve core receiving cavity 103 are in clearance fit.In some embodiments, the outer diameter of the annular portion 503 and the outer diameter of the limiting flange 502 are the same, forming upper and lower double guide points to improve the coaxiality of the tapered structure 500 during axial movement; furthermore, both the annular portion 503 and the limiting flange 502 are clearance-fitted with the inner wall of the valve core accommodating cavity 403, ensuring smooth guidance without jamming. Using the above scheme, the clearance fit between the annular portion 503 and the inner wall of the valve core accommodating cavity 103 provides radial guidance, ensuring the coaxiality of the knob lever 400 during pressing and resetting. In some embodiments, a first reset member 600 is connected to the bottom end of the inclined structure, and the first reset member 600 gives the inclined structure a tendency to always move upward along the axial direction of the knob lever 400. Using the above scheme, the first reset component 600 acts directly on the inclined structure, providing axial reset force to ensure that the inclined structure can automatically reset upward after release; the first reset component 600 gives the inclined structure a constant upward tendency, so that the push rod 201 and the conical surface 501 maintain continuous contact, eliminate gaps, and avoid empty stroke of pressing.
[0065] In some embodiments, the knob lever 400 extends partially out of the valve core receiving cavity 103 and partially rests within the valve core receiving cavity 103 to engage with the valve core 300; a valve needle 700 is disposed within the valve core 300 and arranged axially along the knob lever 400, the valve needle 700 passing through both ends of the valve core 300, one end being connected to the portion of the knob lever 400 located within the valve core receiving cavity 103, and the other end being connected to the inclined structure; a second reset member 800 is disposed between the top end of the valve needle 700 and the valve core 300, the second reset member 800 giving the valve needle 700 a tendency to move upward along the axial direction; a third reset member 900 is disposed between the portion of the knob lever 400 extending out of the valve core receiving cavity 103 and the outer end face of the valve body 100, the third reset member 900 giving the knob lever 400 a tendency to move upward along the axial direction. In some embodiments, the central axes of the knob 400, the valve needle 700, the valve core 300, and the inclined structure are on the same straight line to ensure coaxiality. In some embodiments, the first reset member 600, the second reset member 800, and the third reset member 900 are all compression springs. In some embodiments, the outer wall of the portion of the knob 400 that is located within the valve core receiving cavity 103 is provided with two symmetrical protrusions 401, and the top end of the valve core 300 is provided with two grooves 302 that can cooperate with the two protrusions 401, so that the knob 400 can drive the valve core 300 to rotate synchronously, and the protrusions 401 are always partially placed within the grooves 302. In some embodiments, the bottom end of the knob 400 is provided with a first mounting groove 402, and the top end of the valve core 300 is provided with a second mounting groove 303; a portion of the knob 400 is placed in the second mounting groove 303; a portion of the valve needle 700 extends into the first mounting groove 402, and a flange 701 is provided at its top end; one end of the second reset member 800 abuts against the flange 701, and the other end abuts against the bottom end of the second mounting groove 303; a limiting piece 403 is provided on the portion of the knob 400 extending out of the valve core receiving cavity 103; one end of the third reset member 900 abuts against the limiting piece 403, and the other end abuts against the top end of the valve body 100 located in the valve core receiving cavity 103; a third mounting groove 506 is opened at the bottom end of the inclined structure; a portion of the first reset member 600 is placed in the third mounting groove 506, and the other end abuts against the bottom end of the valve core receiving cavity 103 of the valve body 100.Using the above scheme, the valve needle 700 passes through the valve core 300 and connects the knob lever 400 to the inclined structure, reliably transmitting the pressing pressure and reset force to the inclined structure; the second reset component 800 provides the reset force, making the relative movement between the valve needle 700 and the valve core 300 smooth; the third reset component 900 provides the reset force, enabling the knob lever 400 to automatically pop out and reset; the coordinated work of the first reset component 600, the second reset component 800, and the third reset component 900 makes the pressing and reset process subject to force in stages, resulting in a smooth feel and stable movement; ensuring that each moving part returns to its independent position, avoiding mutual interference, and improving the operating feel and reliability.
[0066] In some embodiments, the solenoid valve 200 includes an axially movable push rod 201, a sealing block 202 disposed on the end of the push rod 201 away from the valve core receiving cavity 103, and a fourth reset member 203 capable of giving the sealing block 202 a tendency to always move toward the valve core receiving cavity 103. The sealing block 202 is used to open and close the solenoid valve receiving cavity 104 and the valve core receiving cavity 103. In some embodiments, the push rod 201 is integrally formed on the sealing block 202. In some embodiments, the fourth reset member 203 is a compression spring. Specifically, when the knob 400 is axially pressed, the inclined surface of the inclined structure pushes the push rod 201 downward, causing the push rod 201 to move axially away from the valve core receiving cavity 103. The solenoid valve 200 is opened, thereby connecting the solenoid valve receiving cavity 104 and the valve core receiving cavity 103. After rotating the knob 400 to drive the valve core 300 to rotate 90° forward, the two ventilation channels 301 on the valve core 300 are connected to the two outlet channels 102. Since the intake channel 101 and the solenoid valve receiving cavity 104 are always connected, the gas can enter the two outlet channels 102 through the intake channel 101, the solenoid valve receiving cavity 104, the valve core receiving cavity 103, and the two ventilation channels 301 on the valve core 300. After releasing the knob 400, the second... Under the action of the first reset component 600, the second reset component 800, and the third reset component 900, the inclined structure, the valve needle 700 and the valve core 300 fixedly connected thereto, and the knob rod 400 can be axially moved upward and reset under the action of the reset force. At the same time, under the reset force of the fourth reset component 203, the sealing block 202 and the push rod 201 move axially toward the direction close to the valve core accommodating cavity 103. When the limiting flange 502 of the inclined structure abuts against the bottom end of the push rod 201, the inclined structure, the valve needle 700 and the valve core 300 fixedly connected thereto, and the knob rod 400 stop moving and are reset in place. After rotating the knob rod 400 to make it drive the valve core 300 to rotate 90° in the opposite direction, the two ventilation channels 301 and the two air outlet channels 102 on the valve core 300 will be cut off. In some embodiments, a limiting structure (not shown in the figure) is provided on the valve body 100, and another limiting structure (not shown in the figure) that cooperates with the limiting structure is provided on the knob rod 400 or the valve core 300, so that the range of forward or reverse rotation of the knob rod 400 to the valve core 300 is 90°.Using the above scheme, the push rod 201 and the sealing block 202 are linked, so that when the inclined structure pushes the push rod 201, the sealing block 202 moves synchronously to open / close the gas passage; the fourth reset member 203 makes the sealing block 202 always move towards the valve core accommodating cavity 103, so that when there is no external force pressing, the sealing block 202 automatically closes the gas passage to achieve flameout protection.
[0067] In some embodiments, the valve body 100 is provided with a connecting portion 105 between the solenoid valve accommodating cavity 104 and the valve core accommodating cavity 103. The connecting portion 105 is provided with three through holes 1051 for connecting the solenoid valve accommodating cavity 104 and the valve core accommodating cavity 103; and the connecting portion 105 is provided with a through hole 1052 for the push rod 201 to extend into the valve core accommodating cavity 103 and cooperate with the inclined surface of the inclined structure. In some embodiments, the connecting portion 105 has a through hole 1052 at its center, and the push rod 201 is always partially placed inside the through hole 1052; the connecting portion 105 has three through holes 1051 arranged at equal intervals around the through hole 1052 to ensure sufficient ventilation cross-sectional area; when the knob rod 400 is axially pressed, the inclined surface of the inclined structure pushes the push rod 201 downward, causing the push rod 201 to move axially away from the valve core receiving cavity 103, and the solenoid valve 200 is opened. When the sealing block 202 disengages from the connecting part 105, the through hole 1051 is exposed, thereby connecting the solenoid valve receiving cavity 104 and the valve core receiving cavity 103. After releasing the knob rod 400, the sealing block 202 and the push rod 201 move axially towards the valve core receiving cavity 103 under the reset force of the fourth reset member 203, until the sealing block 202 abuts against the connecting part 105, sealing the through hole 1051, thus cutting off the connection between the solenoid valve receiving cavity 104 and the valve core receiving cavity 103. Using the above scheme, the connecting part 105 separates the gas passage from the push rod 201 movement passage, ensuring smooth movement of the push rod 201 and sufficient gas flow. In some embodiments, the valve body 100 is a one-piece molded plastic structure, eliminating the need for separate assembly, eliminating the risk of leakage at the connection surface, reducing the number of parts and assembly steps, lowering manufacturing costs, and using plastic, which is lightweight, corrosion-resistant, and has high production efficiency.
[0068] Working principle of the invention: (a) Start-up process Press: The user presses down the knob lever 400, and the knob lever 400 moves downward against the elastic force of the third reset member 900. At the same time, the valve needle 700 drives the conical structure 500 to move downward, overcoming the elastic force of the first reset member 600.
[0069] When the solenoid valve 200 is pushed downward, the conical structure 500 pushes the push rod 201 downward. As the conical surface 501 gradually contracts from top to bottom, the downward-moving conical surface 501 will squeeze the push rod 201 inward, so that the push rod 201 overcomes the elastic force of the fourth reset member 203 and moves away from the valve core accommodating cavity 103.
[0070] Open the gas path: Push rod 201 moves sealing block 202 away from connection part 105, exposing through hole 1051; at this time, solenoid valve 200 is opened, and air intake passage 101 is connected to valve core receiving cavity 103; gas flows sequentially through air intake passage 101, solenoid valve receiving cavity 104, through hole 1051, valve core receiving cavity 103, and reaches valve core 300 to wait.
[0071] Rotary ignition: The user rotates the knob 400 while holding it down; the knob 400 drives the valve core 300 to rotate synchronously through the cooperation of the rib 401 and the groove 302; when the valve core 300 rotates to the preset position (such as rotating 90° forward), the two ventilation channels 301 on the valve core 300 are aligned and connected with the two exhaust channels 102 respectively.
[0072] Combustion: The gas flows out from the gas outlet 102 and is ignited and burned by the burner head.
[0073] Hold the pressure: The user holds the pressure for about 3-5 seconds to allow the thermocouple to be heated by the flame, generating sufficient current to keep the solenoid valve 200 engaged.
[0074] Release: The user releases the knob 400; at this time, the solenoid valve 200 is kept open by the current generated by the thermocouple, and the gas supply continues.
[0075] (ii) Shutdown process Gas shut-off upon release: When the user needs to shut off the gas, release the knob 400; at this time, the holding current of the solenoid valve 200 disappears, and under the elastic force of the fourth reset member 203, the sealing block 202 and the push rod 201 move towards the valve core receiving cavity 103. The sealing block 202 abuts against the connecting part 105, sealing the through hole 1051, cutting off the connection between the solenoid valve receiving cavity 104 and the valve core receiving cavity 103, and the gas supply is immediately interrupted, and the flame is extinguished.
[0076] Each component resets: Simultaneously, under the combined action of the first reset component 600, the second reset component 800, and the third reset component 900, the inclined structure, valve needle 700, valve core 300, and knob rod 400 move upwards to reset; when the limiting flange 502 abuts against the end of the push rod 201, the reset stops, and the knob rod 400 returns to its initial position.
[0077] Rotation to return to center: The user rotates the knob 400 in the opposite direction (e.g., 90° in the opposite direction) to disconnect the air passage 301 on the valve core 300 from the air outlet passage 102, preparing it for the next use.
[0078] The same or similar parts between the various embodiments in this specification can be referred to mutually. Each embodiment focuses on describing the differences from other embodiments.
[0079] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.
Claims
1. A push-button cone-shaped rotary valve, characterized in that: include Valve body (100), wherein the valve body (100) is provided with One air intake passage (101); At least one air outlet (102); A valve core receiving cavity (103); An electromagnetic valve receiving cavity (104) is located between the air intake channel (101) and the valve core receiving cavity (103) and communicates with both; A solenoid valve (200) is disposed in the solenoid valve accommodating cavity (104) for controlling the opening and closing between the air intake channel (101) and the valve core accommodating cavity (103); A valve core (300) is rotatably disposed within the valve core receiving cavity (103), and the valve core (300) is provided with at least one venting channel (301) for selectively communicating the valve core receiving cavity (103) with at least one of the venting channels (102); A knob (400) is connected to the valve core (300) and is axially movable through the valve core receiving cavity (103); The knob (400) has a beveled structure at its bottom end, and the solenoid valve (200) has a push rod (201) at one end near the valve core cavity (103). The beveled surface of the beveled structure abuts against the end of the push rod (201). When the knob (400) is axially pressed, the beveled surface of the beveled structure pushes the push rod (201) downward, causing the push rod (201) to move away from the valve core cavity (103).
2. The push-button cone-shaped rotary valve according to claim 1, characterized in that: The inclined structure is a conical structure (500), and its conical surface (501) abuts against the end of the push rod (201); the outer surface of the conical structure (500) forms the conical surface (501); the conical surface (501) gradually tapers from top to bottom along the axial direction of the knob rod (400), and the upper diameter of the conical surface (501) is larger than the lower diameter.
3. The push-button cone-shaped rotary valve according to claim 2, characterized in that: The bottom end of the conical surface (501) is provided with a limiting flange (502) extending radially outward, and the end of the push rod (201) is located above the limiting flange (502); the limiting flange (502) is used to abut against the push rod (201) during the pressing process to restrain the radial sway of the conical structure (500).
4. The push-button cone-shaped rotary valve according to claim 3, characterized in that: The conical structure (500) has an annular portion (503), a conical portion (504) and a limiting flange (502) arranged sequentially from top to bottom along the axial direction of the knob rod (400); the outer surface of the conical portion (504) forms the conical surface (501), and the outer surface of the annular portion (503) and the inner wall of the valve core receiving cavity (103) are in clearance fit.
5. The push-button cone-shaped rotary valve according to claim 1, characterized in that: The bottom end of the inclined structure is connected to a first reset member (600), which gives the inclined structure a tendency to always move upward along the axis of the knob rod (400).
6. The push-button cone-shaped plug valve according to claim 5, characterized in that: The knob (400) extends partially out of the valve core receiving cavity (103) and partially rests within the valve core receiving cavity (103) to engage with the valve core (300); a valve needle (700) is inserted into the valve core (300) and arranged axially along the knob (400). The valve needle (700) passes through both ends of the valve core (300), with one end connected to the portion of the knob (400) located within the valve core receiving cavity (103) and the other end connected to the inclined structure. A second reset member (800) is provided between the top end of the valve needle (700) and the valve core (300), the second reset member (800) giving the valve needle (700) a tendency to move upward along the axial direction; a third reset member (900) is provided between the part of the knob rod (400) that extends out of the valve core receiving cavity (103) and the outer end face of the valve body (100), the third reset member (900) giving the knob rod (400) a tendency to move upward along the axial direction.
7. The push-button cone-shaped rotary valve according to claim 1, characterized in that: The solenoid valve (200) includes an axially movable push rod (201), a sealing block (202) disposed at one end of the push rod (201) away from the valve core receiving cavity (103), and a fourth reset member (203) capable of giving the sealing block (202) a tendency to always move toward the valve core receiving cavity (103), the sealing block (202) being used to open and close the solenoid valve receiving cavity (104) and the valve core receiving cavity (103).
8. The push-button cone-shaped rotary valve according to claim 1, characterized in that: The valve body (100) is provided with a connecting part (105) between the solenoid valve accommodating cavity (104) and the valve core accommodating cavity (103). The connecting part (105) is provided with at least one through hole (1051) for connecting the solenoid valve accommodating cavity (104) and the valve core accommodating cavity (103); and the connecting part (105) is provided with a through hole (1052) for the push rod (201) to extend into the valve core accommodating cavity (103) and cooperate with the inclined surface of the inclined structure.
9. The push-button cone-shaped rotary valve according to claim 7, characterized in that: The push rod (201) and the sealing block (202) can be detachably connected, or the push rod (201) can be integrally formed on the sealing block (202).
10. The push-button cone-shaped rotary valve according to any one of claims 1-9, characterized in that: The valve body (100) is a one-piece molded structure.