Dry burning protection structure and stove

Abstract

The application belongs to the technical field of kitchen utensils, and particularly relates to a dry burning protection structure and a stove. The dry burning protection structure comprises a fixing part, a stop part and a avoiding part provided on the fixing part; a movable part sleeved on the fixing part, the movable part being provided with a connecting part used for being in sliding connection with the avoiding part, the movable part being capable of moving along an axial direction relative to the fixing part to switch between a first position and a second position; when the movable part is located at the second position, the movable part is used for rotating relative to the fixing part, the connecting part is connected with the stop part, and the movable part is kept at the second position; and a heat collecting part provided at a top end of the movable part, the heat collecting part being used for being in contact with a bottom of a pot to collect heat of the bottom of the pot when the movable part is located at the first position. The dry burning protection structure and the stove provided in the application are used to solve the problem that a probe of a dry burning sensor is prone to colliding with a pot body, and ensure normal operation of a dry burning function.

Description

Technical Field

[0001] This application belongs to the field of kitchenware technology, specifically relating to an anti-dry-burning protection structure and a stove. Background Technology

[0002] Stove appliances are prone to fires when simmering for a long time or when left unattended, due to reasons such as the soup boiling dry or the oil temperature being too high.

[0003] In related technologies, anti-dry-burning sensors are typically installed on the burners of cooktops. The probe of the anti-dry-burning sensor rests directly against the bottom of the pot to monitor the temperature of the pot bottom in real time. When the temperature exceeds a set threshold, it can automatically cut off the gas supply, improving the safety of the cooking process.

[0004] However, the probe of the anti-dry-burning sensor is prone to collision with the pot body, affecting the normal operation of the anti-dry-burning function. Utility Model Content

[0005] This application provides an anti-dry-burning protection structure and stove to solve the problem that the probe of the anti-dry-burning sensor is prone to collision with the pot body, and to ensure the normal operation of the anti-dry-burning function.

[0006] In a first aspect, embodiments of this application provide an anti-dry-burning protection structure, including:

[0007] A fastener for connection to a burner, the fastener being provided with a stop portion and a clearance portion;

[0008] A movable component is sleeved on the fixed component. The movable component is provided with a connecting part, which is used to slide with the clearance part. The movable component can move axially relative to the fixed component to switch between a first position and a second position. The second position is closer to the fixed component than the first position.

[0009] When the movable member is in the second position, the movable member is used to rotate relative to the fixed member, the connecting part is connected to the stop part, and the movable member is held in the second position;

[0010] A heat collector is disposed at the top of the movable component. When the movable component is in the first position, the heat collector is used to contact the bottom of the pot to collect the heat from the bottom of the pot.

[0011] In one possible design, the connecting portion is a first protrusion protruding toward the fixing member, the extension direction of the first protrusion being parallel to the axial direction of the movable member;

[0012] The side wall of the fixing member is provided with a boss protruding toward the movable member, the first protrusion abuts against the boss, and the movable member is held in the second position.

[0013] In one possible design, the boss is an annular boss, and the outer side wall of the boss is provided with a first groove and a second groove, which are spaced apart along the circumference of the boss.

[0014] The first groove forms the clearance portion, and the first protrusion is used for sliding connection to the first groove;

[0015] The second groove is used to form the stop portion, and the first protrusion is used to abut against the groove wall of the second groove.

[0016] In one possible design, the groove depth of the first groove is greater than the maximum height of the first protrusion, and the groove width of the first groove is greater than the maximum width of the first protrusion.

[0017] The depth of the second groove is less than or equal to the minimum height of the first protrusion, and / or the width of the second groove is less than or equal to the minimum width of the first protrusion.

[0018] In one possible design, the first convex strip is a tapered convex strip;

[0019] The width of the end of the first protrusion away from the fixing member is smaller than the width of the end of the first protrusion near the fixing member;

[0020] The height of the end of the first protrusion away from the fixing member is less than the height of the end of the first protrusion close to the fixing member.

[0021] In one possible design, the movable component is further provided with a guide portion, and the guide portion and the connecting portion are spaced apart along the circumferential direction of the movable component;

[0022] When the connecting part is connected to the stop part, the guide part is connected to the avoidance part;

[0023] When the connecting part is slidably connected to the avoidance part, the guide part is slidably connected to the stop part.

[0024] In one possible design, the movable part includes a first sleeve section and a second sleeve section connected to each other, wherein the inner diameter of the first sleeve section is larger than the outer diameter of the boss, and the inner diameter of the second sleeve section is smaller than the outer diameter of the boss.

[0025] The junction of the first sleeve segment and the second sleeve segment forms an abutment surface. When the movable part is in the first position, the abutment surface abuts against the surface of the boss that is away from the movable part.

[0026] In one possible design, the anti-dry-burning protection structure further includes an elastic drive member disposed within the movable member. One end of the elastic drive member is connected to the fixed member, and the other end of the elastic drive member is connected to the movable member. The elastic drive member is used to drive the movable member to move axially away from the fixed member.

[0027] In one possible design, the anti-dry-burning protection structure further includes a protective cover, which is fitted over the outside of the movable part and connected to the movable part;

[0028] The protective cover has an opening at one end away from the fixing member, and the heat collection member includes a heat collection plate, which is disposed on the outside of the protective cover and covers the opening.

[0029] Secondly, this application provides a stove, including at least one burner, wherein the burner is provided with a burner and a heat insulation ring is provided in the middle of the burner;

[0030] The burner is equipped with any of the above-mentioned anti-dry-burning protection structures in its middle part, and the anti-dry-burning protection structure is located inside the heat insulation ring.

[0031] When the movable component is in the first position, the heat collecting component is higher than the upper surface of the heat insulation ring and is used to contact the bottom of the pot;

[0032] When the movable component is in the second position, the heat collection component is lower than the upper surface of the heat insulation ring.

[0033] The anti-dry-burning protection structure and stove provided in this application embodiment include a fixing member for connecting to the burner, the fixing member having a stop part and a clearance part; a movable member sleeved on the fixing member, the movable member having a connecting part for sliding connection with the clearance part, the movable member being able to move axially relative to the fixing member to switch between a first position and a second position, the second position being closer to the fixing member than the first position; when the movable member is in the second position, the movable member is used to rotate relative to the fixing member, the connecting part is connected to the stop part, and the movable member is held in the second position; a heat collector is disposed at the top of the movable member, when the movable member is in the first position, the heat collector is used to contact the bottom of the pot to collect heat from the bottom of the pot.

[0034] By setting stop and avoidance parts in the fixed parts to form functional zones, and in conjunction with the axial sliding and rotation locking mechanism of the moving parts, the heat collection element can switch between two modes: contact monitoring and avoidance protection.

[0035] When anti-dry-burning protection is required, the movable part can be in the first position so that the heat collector is in contact with the bottom of the pot to collect temperature; when anti-dry-burning protection is not required, the movable part can be in the second position so that the heat collector is away from the bottom of the pot to avoid the risk of physical collision.

[0036] The anti-dry-burning protection structure and stove provided in this application embodiment can effectively avoid the deformation and misjudgment problems caused by the collision between the traditional anti-dry-burning sensor and the bottom of the pot, ensure the normal operation of the anti-dry-burning function, and extend the service life of the anti-dry-burning sensor. Attached Figure Description

[0037] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0038] Figure 1 This is a schematic diagram of the anti-dry-burning protection structure provided in the embodiments of this application;

[0039] Figure 2 for Figure 1 Explosion of the central anti-dry-burning protective structure Figure 1 ;

[0040] Figure 3 for Figure 1 Explosion of the central anti-dry-burning protective structure Figure 2 ;

[0041] Figure 4 A schematic diagram of the movable component of the anti-dry-burning protection structure provided in the embodiments of this application, with the component in the first position;

[0042] Figure 5 A schematic diagram of the movable component of the anti-dry-burning protection structure provided in the embodiment of this application, in the second position;

[0043] Figure 6 A schematic diagram of the connection between the connecting part and the first groove of the anti-dry burning protection structure provided in this application embodiment;

[0044] Figure 7 A schematic diagram showing the connection between the guide portion and the second groove of the anti-dry-burning protection structure provided in this application embodiment;

[0045] Figure 8 for Figure 1 A schematic diagram of the fasteners of the anti-dry-burning protection structure;

[0046] Figure 9 This is a schematic diagram of the structure of the stove provided in the embodiments of this application;

[0047] Figure 10 This is a schematic diagram of the anti-dry-burning protection structure installed inside the burner in the stove provided in this application embodiment.

[0048] Explanation of reference numerals in the attached figures:

[0049] 100 - Fastener;

[0050] 110 - Support rod; 111 - Clip protrusion;

[0051] 120 - Boss; 121 - Stop; 122 - Clearance section;

[0052] 200 - Activity items;

[0053] 210 - First set of sections; 211 - Connecting part; 212 - Guide part;

[0054] 220 - Second set of sections;

[0055] 230 - Abutment surface;

[0056] 300 - Heat collector;

[0057] 310-Heat collector plate;

[0058] 400 - Flexible drive component;

[0059] 500 - Protective cover; 501 - Opening;

[0060] 900-burner;

[0061] 910 - Thermal insulation ring.

[0062] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concepts of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0063] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0064] The terms "first," "second," "third," "fourth," etc. (if present) in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a particular order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented, for example, in orders other than those illustrated or described herein.

[0065] In this application, the terms "exemplary" or "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design described as "exemplary" or "for example" in this application should not be construed as being more preferred or advantageous than other embodiments or designs. Specifically, the use of terms such as "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0066] Furthermore, the terms "set up," "connect," and "fix" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this disclosure according to the specific circumstances.

[0067] Unless otherwise stated, the term "multiple" means two or more.

[0068] As can be seen from the background technology, stoves are very prone to fires when simmering for a long time or when left unattended, due to reasons such as the soup boiling dry or the oil temperature being too high.

[0069] In related technologies, anti-dry-burning sensors are typically installed on the burners of cooktops. The probe of the anti-dry-burning sensor rests directly against the bottom of the pot to monitor the temperature of the pot bottom in real time. When the temperature exceeds a set threshold, it can automatically cut off the gas supply, improving the safety of the cooking process.

[0070] Anti-dry-burning sensors are typically installed in the center of the burner, and their height cannot be adjusted. The sensor probe always extends outside the burner to rest against the bottom of the pot. When the user switches to cooking methods that require frequent lifting and shaking of the pot, such as stir-frying or tossing, the probe remains in a high position, making it highly susceptible to continuous collisions with the pot.

[0071] On the one hand, collisions can interfere with the accuracy of temperature detection and easily cause false alarms and engine shutdown; on the other hand, the tip of the probe is prone to plastic deformation or even cracks under repeated impacts, which leads to a decrease in sensitivity and affects the normal operation of the anti-dry burning function.

[0072] To address the aforementioned problems, this application provides an anti-dry-burning protection structure and a stove. The anti-dry-burning protection structure includes a fixing member for connection to the burner, the fixing member having a stop and a clearance portion; a movable member sleeved on the fixing member, the movable member having a connecting portion for sliding connection with the clearance portion, the movable member being axially movable relative to the fixing member to switch between a first position and a second position, the second position being closer to the fixing member than the first position; when the movable member is in the second position, the movable member is used to rotate relative to the fixing member, the connecting portion is connected to the stop portion, and the movable member remains in the second position; a heat collector is disposed at the top of the movable member, when the movable member is in the first position, the heat collector is used to contact the bottom of the pot to collect heat from the bottom of the pot.

[0073] By setting stop and avoidance parts in the fixed parts to form functional zones, and in conjunction with the axial sliding and rotation locking mechanism of the moving parts, the heat collection element can switch between two modes: contact monitoring and avoidance protection.

[0074] In cooking modes requiring anti-dry-burn protection (such as stewing), the moving part can be in the first position to ensure the heat collector is in contact with the bottom of the pot for temperature collection. In cooking modes not requiring anti-dry-burn protection (such as stir-frying or tossing), the moving part can be in the second position to keep the heat collector away from the bottom of the pot and avoid the risk of physical collision.

[0075] This design avoids the deformation and misjudgment problems caused by continuous collisions in traditional anti-dry-burning sensors, ensuring the normal operation of the anti-dry-burning function and extending the service life of the anti-dry-burning sensor.

[0076] The technical solutions of this application and how they solve the aforementioned technical problems are described in detail below with specific embodiments. These specific embodiments may exist independently or in combination with each other. Identical or similar concepts or processes may not be repeated in some embodiments. The embodiments of this application will now be described with reference to the accompanying drawings.

[0077] Combination Figures 1 to 5 As shown, one embodiment of this application provides an anti-dry-burning protection structure, including a fixing member 100, a movable member 200, and a heat collector 300. The fixing member 100 is used to connect to the burner 900 and is provided with a stop portion 121 and a clearance portion 122. The movable member 200 is sleeved on the fixing member 100 and is provided with a connecting portion 211, which is used to slide with the clearance portion 122. The movable member 200 can move axially relative to the fixing member 100 to switch between a first position and a second position, with the second position being closer to the fixing member 100 than the first position.

[0078] When the movable member 200 is in the second position, it is used to rotate relative to the fixed member 100. The connecting part 211 is connected to the stop part 121, and the movable member 200 is held in the second position. The heat collector 300 is disposed at the top of the movable member 200. When the movable member 200 is in the first position, the heat collector 300 is used to contact the bottom of the pot to collect heat from the bottom of the pot.

[0079] The fixing component 100 serves as the foundation of the entire anti-dry-burning protection structure, connecting with the burner 900 to ensure the stability and reliability of the overall structure. The stop part 121 and the clearance part 122 provided on the fixing component 100 provide the necessary mechanical interface for the movement and rotation of the movable part 200, allowing the movable part 200 to switch between different positions, thereby realizing the activation and deactivation of the anti-dry-burning protection function.

[0080] The movable component 200 is fitted onto the fixed component 100 and can move axially relative to the fixed component 100 to switch between a first position and a second position. This design allows the heat collector 300 to be positioned closer to or further away from the bottom of the pot according to the cooking mode, thus providing appropriate protection in different cooking modes. The movement and rotation mechanism of the movable component 200 allows users to flexibly adjust the state of the anti-dry-burning protection structure according to their cooking needs.

[0081] A connecting portion 211 is provided on the movable member 200 for sliding connection with the clearance portion 122 on the fixed member 100. This sliding connection allows the movable member 200 to move axially. In the second position, the connecting portion 211 can connect with the stop portion 121 to hold the movable member 200 in the second position. This design ensures that the movable member 200 can be stably held in the proper position when needed, avoiding interference with the anti-dry-burning protection function due to accidental movement.

[0082] The heat collector 300 is located at the top of the movable part 200 and is designed to contact the bottom of the pot in the first position to collect heat from the bottom. The heat collection function of the heat collector 300 is crucial for achieving the anti-dry-burning protection; it can monitor the temperature of the pot bottom in real time, providing accurate temperature information for the anti-dry-burning protection. Through the contact between the heat collector 300 and the pot bottom, abnormally high temperatures can be detected promptly, triggering an automatic gas shut-off mechanism to prevent fire.

[0083] The switching mechanism between the first and second positions allows users to flexibly adjust the state of the anti-dry-burn protection structure according to different cooking modes. In the first position, the heat collector 300 is in contact with the bottom of the pot, providing anti-dry-burn protection; in the second position, the heat collector 300 is away from the bottom of the pot, avoiding collisions with the pot body during cooking modes such as stir-frying and tossing. This design improves the adaptability and practicality of the anti-dry-burn protection structure, ensuring appropriate protection in different cooking modes, while also extending the lifespan of the anti-dry-burn sensor.

[0084] Specifically, the anti-dry-burning protection structure provided in this application embodiment forms a functional partition by setting a stop part 121 and a clearance part 122 on the fixing part 100. With the axial sliding and rotation locking mechanism of the moving part 200, the heat collection part 300 can switch between two modes: contact monitoring and clearance protection.

[0085] When anti-dry-burning protection is required, the movable part 200 can be in the first position so that the heat collector 300 is in contact with the bottom of the pot to collect temperature; when anti-dry-burning protection is not required, the movable part 200 can be in the second position so that the heat collector 300 is away from the bottom of the pot to avoid the risk of physical collision.

[0086] This design effectively avoids the deformation and misjudgment problems caused by continuous collisions in traditional anti-dry-burning sensors, ensuring the normal operation of the anti-dry-burning function and extending the service life of the anti-dry-burning sensor.

[0087] For example, the heat collector 300 is a dry-burning sensor.

[0088] Combination Figure 3 As shown, in some embodiments, the connecting part 211 is a first protrusion protruding toward the fixing member 100, and the extension direction of the first protrusion is parallel to the axial direction of the movable member 200; the side wall of the fixing member 100 is provided with a boss 120 protruding toward the movable member 200, the first protrusion abuts against the boss 120, and the movable member 200 is held in the second position.

[0089] The first protrusion serves as the mechanical transmission interface between the movable part 200 and the fixed part 100. Its protruding structure provides a clear physical contact point, enabling the movable part 200 to accurately abut against the boss 120 of the fixed part 100 when rotating.

[0090] The first protrusion protrudes towards the fixing member 100, which also reduces the fitting gap between the moving member 200 and the fixing member 100, avoids the axial wobbling of the moving member 200, and improves the stability of the locking state.

[0091] If the extension direction of the first protrusion is parallel to the axial direction of the movable member 200, the first protrusion can form line contact or surface contact with the avoidance part 122 (such as the groove) of the fixed member 100 during the axial sliding stage, thereby reducing the sliding friction resistance and ensuring that the movable member 200 moves smoothly and without jamming from the first position to the second position.

[0092] During the rotation locking phase, the end of the first protrusion away from the fixing member 100 can abut against the boss 120, thereby restricting the movement of the first protrusion away from the fixing member 100, thereby restricting the movement of the movable member 200, so that the movable member 200 is kept in the second position, and the heat collector 300 is in a low position, which can avoid collision with the bottom of the pot.

[0093] Specifically, the fastener 100 can be a support rod 110, with the boss 12 sleeved on the top of the support rod 110. The support rod 110 is used to connect with the burner 900. For example, the support rod 110 can be connected to the burner 900 by means of plug-in, snap-fit, or threaded connection.

[0094] The boss 120 protrudes from the side wall of the support rod 110 and can serve as a rigid stop structure for the movable member 200. The design of the boss 120 protruding from the support rod 110 provides a limiting function. That is, when the first protrusion rotates to below the boss 120, the boss 120 can block the axial reset path of the first protrusion, so that the movable member 200 is reliably held in the second position.

[0095] Specifically, the top end of the support rod 110 may be provided with a mounting part extending radially toward the boss 120 along the support rod 110. The upper surface of the boss 120 is provided with a receiving groove adapted to the mounting part. The mounting part is inserted into the boss 120 and bent outward toward the boss 120, and embedded in the receiving groove, so that the support rod 110 and the boss 120 are fixedly connected.

[0096] More specifically, the mounting portion of the support rod 110 can be welded to the boss 120 to withstand high-temperature operating environments.

[0097] The anti-dry-burning protection structure provided in this application embodiment achieves unidirectional sliding and rotational self-locking mechanical logic through the simple cooperation between the boss 120 and the first protrusion. This makes the moving part 200 have low resistance in the sliding stage and high stability in the locking stage. The structure is simple, which can simplify the assembly process and reduce the probability of failure. It can effectively avoid the risk of collision between the anti-dry-burning sensor and the pot, and solve the problems of false alarm and plastic deformation caused by continuous collision of traditional probes in stir-frying and tossing scenarios.

[0098] Combination Figures 6 to 8 As shown, in some embodiments, the boss 120 is an annular boss, and the outer side wall of the boss 120 is provided with a first groove and a second groove, which are spaced apart along the circumference of the boss 120; the first groove forms a relief portion 122, and the first protrusion is used to slide and connect to the first groove; the second groove forms a stop portion 121, and the first protrusion is used to abut against the groove wall of the second groove.

[0099] Understandably, the boss 120 is set as an annular boss 120, and a first groove and a second groove are provided on the outer side wall of the boss 120. The first groove forms a relief part 122 and the second groove forms a stop part 121. This is equivalent to integrating the functions of relief and stop on the same annular boss 120, without having to mill a long groove or weld a stop block on the support rod 110. This makes the structure of the fastener 100 simple and easy to process and form.

[0100] Furthermore, the first groove and the second groove are spaced apart along the circumference of the boss 120, which also has a foolproof effect. The first protrusion must be aligned with the first groove (i.e., the avoidance part 122) before it can be pressed down, so as to prevent the user from damaging the structure by brute force.

[0101] The angle between the first and second grooves can be greater than or equal to 20° and less than or equal to 180°. For example, the angle between the first and second grooves can be 120°. The angle between the first and second grooves is the rotation locking angle. By setting the angle within the above range, it is convenient for the user to operate in one go.

[0102] In practice, the first protrusion is aligned with the first groove, allowing it to slide and connect to the first groove, thus enabling the movable member 200 to switch between a first position and a second position. When the movable member 200 is pressed down to the second position and rotated, causing the first protrusion to align with the second groove, the first protrusion cannot move within the second groove. The surface of the first boss 120 then abuts against the wall of the second groove, thus maintaining the movable member 200 in the second position.

[0103] In some embodiments, the groove depth of the first groove is greater than the maximum height of the first protrusion, and the groove width of the first groove is greater than the maximum width of the first protrusion.

[0104] By controlling the depth and width of the first groove to be greater than the maximum height and width of the first protrusion, the first protrusion can be completely submerged in the first groove during the axial sliding phase of the movable part 200, without interfering with the bottom of the groove. This ensures that the movable part 200 moves up and down without damping or jamming, which helps reduce the user's operating force and improves the feel. In addition, there can be a gap between the first protrusion and the first groove, which can be used to compensate for manufacturing tolerances and differences in thermal expansion, preventing the first protrusion from jamming against the groove wall at high temperatures.

[0105] In some embodiments, the groove depth of the second groove is less than or equal to the minimum height of the first protrusion.

[0106] By controlling the depth of the second groove to be less than or equal to the minimum height of the first protrusion, when the movable part 200 rotates to the locking angle, the first protrusion cannot fall completely into the second groove, and the first protrusion will be higher than the first groove. The first groove can form an interference or partial interference with the first protrusion, thereby generating an axial preload force to prevent the movable part 200 from returning to the first position.

[0107] Specifically, when the depth of the second groove is less than the minimum height of the first protrusion, the top of the first protrusion abuts against the bottom wall of the boss 120 to restrict the upward movement of the movable part 200.

[0108] When the depth of the second groove is equal to the minimum height of the first protrusion, part of the surface of the first protrusion can abut against the bottom wall of the second groove, which can also resist the movement of the first protrusion and limit the upward movement of the movable part 200.

[0109] In some embodiments, the width of the second groove is less than or equal to the minimum width of the first protrusion.

[0110] By controlling the width of the second groove to be less than or equal to the minimum width of the first protrusion, the first protrusion can be press-fitted with the sidewall of the second groove. Combined with the locking effect in the depth direction of the first groove, the first protrusion can be prevented from wobbling, and it can maintain its second position without loosening under the impact of tossing or transportation vibration.

[0111] Combination Figure 3 , Figure 5 and Figure 6 As shown, in some embodiments, the first protrusion is a tapered protrusion; the width of the end of the first protrusion away from the fixing member 100 is less than the width of the end of the first protrusion close to the fixing member 100; the height of the end of the first protrusion away from the fixing member 100 is less than the height of the end of the first protrusion close to the fixing member 100.

[0112] Understandably, along the axial direction of the movable part 200, the width and height of the first protrusion gradually increase from the end away from the fixed part 100 (upper end) to the end closer to the fixed part 100 (lower end).

[0113] It should be noted that, in this embodiment, the height of the first protrusion is the height by which the first protrusion protrudes toward the fixed member 100 along the axial direction of the movable member 200; the width of the first protrusion is the width of the first protrusion perpendicular to the axial direction of the movable member 200.

[0114] The upper end of the first protrusion is thinner and the height is smaller, so the lateral gap in the first groove is larger. High temperature expansion or manufacturing errors will not cause the sidewall to jam, thus avoiding jamming during the sliding stage.

[0115] The lower end of the first protrusion is wider. When rotated to the second groove, the wider portion forms a lateral interference fit with the groove wall of the second groove, generating elastic preload, which can eliminate circumferential wobbling and ensure locking stability. The higher part of the first protrusion can also make interference contact with the bottom wall of the second groove, improving stability in the second position.

[0116] In some embodiments, the movable member 200 is further provided with a guide portion 212. The guide portion 212 and the connecting portion 211 are spaced apart along the circumference of the movable member 200. When the connecting portion 211 is connected to the stop portion 121, the guide portion 212 is connected to the clearance portion 122, that is, the guide portion 212 can be located in the first groove. When the connecting portion 211 is slidably connected to the clearance portion 122, the guide portion 212 is slidably connected to the stop portion 121, that is, the guide portion 212 can be slidably connected to the second groove.

[0117] The guide portion 212 may be a second protrusion protruding toward the fixing member 100, and the extension direction of the second protrusion is parallel to the axial direction of the moving member 200.

[0118] Specifically, the included angle between the guide portion 212 and the connecting portion 211 corresponds to the included angle between the first groove and the second groove.

[0119] When the connecting part 211 is connected to the stop part 121 (i.e., in the locked state), the guide part 212 is located in the first groove. The guide part 212 is in a zero-force state in the first groove, which can play a radial positioning role and prevent the movable part 200 from being accidentally unlocked due to the impact of the pot after locking.

[0120] When the connecting part 211 and the clearance part 122 are slidably connected (i.e., in the sliding stage), the guide part 212 is slidably connected to the second groove. Since the second groove is small, the guide part 212 can act as a guide rail in this stage and is slidably connected in the second groove.

[0121] Specifically, the guide part 212 can provide guidance for the movement of the movable part 200, realize the trajectory correction and error prevention limit of the movable part 200. The guide part 212 and the connecting part 211 are complementary in the circumferential direction of the fixed part 100, which helps to keep the movable part 200 from tilting or shaking throughout the entire process and helps to avoid misoperation.

[0122] Combination Figure 4 and Figure 5 As shown, in some embodiments, the movable member 200 includes a first sleeve segment 210 and a second sleeve segment 220 connected to each other. The inner diameter of the first sleeve segment 210 is larger than the outer diameter of the boss 120, and the inner diameter of the second sleeve segment 220 is smaller than the outer diameter of the boss 120. The junction of the first sleeve segment 210 and the second sleeve segment 220 forms an abutment surface 230. When the movable member 200 is in the first position, the abutment surface 230 abuts against the surface of the boss 120 away from the movable member 200.

[0123] Specifically, the movable part 200 is a sleeve-type structure, sleeved on the outside of the fixed part 100. The first and second protrusions can be pressed structures provided on the side wall of the first sleeve section 210, which protrude toward the fixed part 100.

[0124] If the inner diameter of the first set section 210 of the movable part 200 is larger than the outer diameter of the boss 120, then when the movable part 200 switches between the first position and the second position, the inner side wall of the first set section 210 can avoid contact with the side wall of the boss 120 to prevent seizing or scraping caused by high temperature expansion, and ensure smooth movement.

[0125] The second set of the movable part 200, segment 220, has an inner diameter smaller than the outer diameter of the boss 120, but an inner diameter larger than the outer diameter of the support rod 110. This arrangement allows the second set of the movable part 200 to slide only outside the support rod 110, without going beyond the position of the boss 120.

[0126] When the movable part 200 is in the first position, the abutting surface 230 abuts against the surface of the boss 120 away from the movable part 200, which can prevent the movable part 200 from moving too high and thus disengaging from the fixed part 100, thereby achieving the stability of the movable part 200 in the first position.

[0127] Combination Figures 2 to 7 As shown, in some embodiments, the anti-dry-burning protection structure further includes an elastic drive member 400, which is disposed within the movable member 200. One end of the elastic drive member 400 is connected to the fixed member 100, and the other end of the elastic drive member 400 is connected to the movable member 200. The elastic drive member 400 is used to drive the movable member 200 to move axially away from the fixed member 100.

[0128] Understandably, the elastic drive component 400 is set inside the movable component 200, which can protect the elastic drive component 400 from soup and oil droplets, preventing them from falling directly onto the elastic drive component 400 and preventing it from getting stuck.

[0129] One end of the elastic drive member 400 is connected to the fixed member 100, and the other end is connected to the movable member 200. The elastic force of the elastic drive member 400 only acts on the axial direction of the movable member 200, which facilitates the axial movement of the movable member 200.

[0130] Specifically, the elastic drive member 400 can always be in a compressed state within the movable member 200, and under the elastic force of the elastic drive member 400, it has the tendency to drive the movable member 200 to move away from the fixed member 100 along the axial direction.

[0131] In practical implementation, when the self-locking mechanism of the anti-dry-burning protection structure is disabled, the connecting part 211 connects with the avoidance part 122. At this time, the movable part 200 can move smoothly up and down, while the guide part 212 slides within the avoidance part 122 to provide guidance. The elastic drive member 400 can drive the movable part 200 to move axially away from the fixed part 100 to the first position, and maintain the first position under the abutment action of the contact surface 230 and the boss 120. At this time, the heat collector 300 is in a high position. When the user performs stewing or other operations, the heat collector 300 can fit against the bottom of the pot to achieve effective anti-dry-burning monitoring.

[0132] When the user presses down the movable part 200 to the second position and rotates it, the connecting part 211 connects with the stop part 121. Under the stopping action of the stop part 121, the movable part 200 is restricted to the second position, and the heat collector 300 is in the low position. When the user needs to perform operations such as stir-frying or tossing, the heat collector 300 in the low position will not contact the bottom of the pot.

[0133] For example, the elastic drive element 400 may be a spring or an elastic sleeve, etc.

[0134] Combination Figures 1 to 7 As shown, in some embodiments, the anti-dry-burning protection structure further includes a protective cover 500, which is sleeved on the outside of the movable member 200 and connected to the movable member 200; the protective cover 500 has an opening 501 at one end away from the fixed member 100, and the heat collection member 300 includes a heat collection plate 310, which is disposed on the outside of the protective cover 500 and covers the opening 501.

[0135] Understandably, the protective cover 500 is installed on the outside of the movable part 200 to protect the movable part 200 and the heat collection element 300 installed on the movable part 200. At the same time, it provides a manual operation point so that the user can manually press down the movable part 200.

[0136] For example, the protective cover 500 can be connected to the outside of the movable part 200 by means of snap-fit, riveting or laser spot welding.

[0137] The protective cover 500 has an opening 501 at the end opposite to the fixing member 100, that is, the opening 501 faces the bottom of the pot, which can provide a direct radiation channel for the heat collection plate 310 and avoid the heat response delay caused by the cover blocking the heat. In addition, the edge of the opening 501 can form a positioning stop, which serves as a reference for the heat collection plate 310, helping to ensure that the heat collection plate 310 is at the same height every time it is assembled, which facilitates temperature calibration.

[0138] It should be noted that the heat collector 310 is located on top of the anti-dry-burning sensor and is used to directly contact the bottom of the pot to quickly collect heat from the bottom of the pot. The heat collector 310 can be a thin cap-shaped or disc-shaped structure made of copper, aluminum, or stainless steel.

[0139] The heat collector 300 also includes a temperature probe (such as a thermistor or thermocouple), which can be positioned below the heat collector 310 to receive the heat transferred from the heat collector 310. When the temperature measured by the temperature probe exceeds a set value, it can send a signal to other components so that the gas system can automatically cut off the gas supply and achieve anti-dry burning protection.

[0140] Combination Figure 9 and Figure 10 As shown, another aspect of this application provides a stove, including at least one burner, the burner being provided with a burner 900, and a heat insulation ring 910 being provided in the middle of the burner 900; the burner 900 is provided with an anti-dry-burning protection structure provided in any of the above embodiments, the anti-dry-burning protection structure being located inside the heat insulation ring 910.

[0141] The anti-dry-burning protection structure has been described in detail in the above embodiments and will not be repeated here.

[0142] Specifically, a protrusion 111 can be provided on the side wall of the support rod 110, and a corresponding slot can be provided on the burner 900. The protrusion 111 is embedded in the slot, so that the anti-dry burning protection structure can be installed on the burner 900.

[0143] Among them, the heat insulation ring 910 can physically isolate the central air of the burner 900 from the outer main flame. The anti-dry burning protection structure is located inside the heat insulation ring 910, which allows the heat collector 300 to be only radiated by the bottom of the pot, and not to be directly scourd by the flame, so as to avoid misjudgment and flameout caused by flame licking.

[0144] In practice, when the movable part 200 is in the first position, the heat collection part 300 is higher than the upper surface of the heat insulation ring 910 and is used to contact the bottom of the pot. At this time, the thermal resistance is minimal, the dry burning response time is short, and it is convenient to quickly detect the dry burning situation.

[0145] When the movable part 200 is in the second position, the heat collector 300 is lower than the upper surface of the heat insulation ring 910. The heat collector 300 is completely submerged in the ring, and the heat insulation ring 910 can form a collision-proof barrier. When the pot moves to the side or the ladle shakes, it will hit the heat insulation ring 910 first, instead of directly hitting the heat collector 300. This can solve the problems of plastic deformation and cracking of the heat collector 310 and extend the service life of the heat collector 300.

[0146] It should be noted that for common dual-burner gas stoves, by setting anti-dry-burning protection structures in the middle of each burner 900, users can easily choose which burner to use as the anti-dry-burning burner according to their own cooking habits.

[0147] For stove heads requiring anti-dry-burning protection, the user only needs to move the movable part 200 down to the second position and rotate it so that the connecting part 211 connects with the stop part 121 to achieve the locked state of the anti-dry-burning protection structure (e.g. Figure 9 (As shown on the right side of the burner). The heat collector 300 can retract below the heat insulation ring 910 to avoid colliding with the bottom of the pot.

[0148] For stove heads that do not require anti-dry-burning protection, the user only needs to rotate the movable part 200 to connect the connecting part 211 with the clearance part 122, thereby canceling the locking of the anti-dry-burning protection structure. The movable part 200 and the heat collector 300 can be in the first position under the action of the elastic drive part 400 (e.g., Figure 9 (As shown on the left side of the stove), and it can move up and down adaptively when the pot is pressed down, so as to fit different shaped pot bottoms.

[0149] The technical solutions of this application have been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it is readily understood by those skilled in the art that the scope of protection of this application is obviously not limited to these specific embodiments. The above embodiments are only used to illustrate the technical solutions of this application and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A dry-burn protection structure, characterized in that, include: A fastener (100) is used to connect to a burner (900), the fastener (100) being provided with a stop (121) and a clearance (122); A movable part (200) is sleeved on the fixed part (100). The movable part (200) is provided with a connecting part (211). The connecting part (211) is used to slide with the clearance part (122). The movable part (200) can move axially relative to the fixed part (100) to switch between a first position and a second position. The second position is closer to the fixed part (100) relative to the first position. When the movable member (200) is in the second position, the movable member (200) is used to rotate relative to the fixed member (100), the connecting part (211) is connected to the stop part (121), and the movable member (200) is held in the second position; A heat collector (300) is disposed at the top of the movable member (200). When the movable member (200) is in the first position, the heat collector (300) is used to contact the bottom of the pot to collect the heat from the bottom of the pot.

2. The anti-dry-burning protection structure according to claim 1, characterized in that, The connecting part (211) is a first protrusion protruding toward the fixing member (100), and the extending direction of the first protrusion is parallel to the axial direction of the movable member (200). The fixing member (100) is provided with a boss (120) protruding toward the movable member (200), the first protrusion abuts against the boss (120), and the movable member (200) is held in the second position.

3. The anti-dry-burning protection structure according to claim 2, characterized in that, The boss (120) is an annular boss. The outer side wall of the boss (120) is provided with a first groove and a second groove. The first groove and the second groove are spaced apart along the circumference of the boss (120). The first groove forms the clearance portion (122), and the first protrusion is used to slide in the first groove; The second groove forms the stop portion (121), and the first protrusion is used to abut against the groove wall of the second groove.

4. The anti-dry-burning protection structure according to claim 3, characterized in that, The groove depth of the first groove is greater than the maximum height of the first protrusion, and the groove width of the first groove is greater than the maximum width of the first protrusion. The depth of the second groove is less than or equal to the minimum height of the first protrusion, and / or the width of the second groove is less than or equal to the minimum width of the first protrusion.

5. The anti-dry-burning protection structure according to claim 3, characterized in that, The first convex strip is a tapered convex strip; The width of the end of the first protrusion away from the fixing member (100) is smaller than the width of the end of the first protrusion close to the fixing member (100); The height of the end of the first protrusion away from the fixing member (100) is less than the height of the end of the first protrusion close to the fixing member (100).

6. The anti-dry-burning protection structure according to any one of claims 1-5, characterized in that, The movable part (200) is also provided with a guide part (212), and the guide part (212) and the connecting part (211) are spaced apart along the circumference of the movable part (200); When the connecting part (211) is connected to the stop part (121), the guide part (212) is connected to the avoidance part (122); When the connecting part (211) is slidably connected to the avoidance part (122), the guide part (212) is slidably connected to the stop part (121).

7. The anti-dry-burning protection structure according to any one of claims 2-5, characterized in that, The movable part (200) includes a first sleeve section (210) and a second sleeve section (220) connected to each other. The inner diameter of the first sleeve section (210) is larger than the outer diameter of the boss (120), and the inner diameter of the second sleeve section (220) is smaller than the outer diameter of the boss (120). The junction of the first sleeve section (210) and the second sleeve section (220) forms an abutment surface (230). When the movable part (200) is in the first position, the abutment surface (230) abuts against the surface of the boss (120) away from the movable part (200).

8. The anti-dry-burning protection structure according to any one of claims 1-5, characterized in that, It also includes an elastic drive member (400), which is disposed within the movable member (200). One end of the elastic drive member (400) is connected to the fixed member (100), and the other end of the elastic drive member (400) is connected to the movable member (200). The elastic drive member (400) is used to drive the movable member (200) to move axially away from the fixed member (100).

9. The anti-dry-burning protection structure according to any one of claims 1 to 5, characterized in that, It also includes a protective cover (500), which is fitted over the outside of the movable part (200) and connected to the movable part (200); The protective cover (500) has an opening (501) at one end away from the fixing member (100), and the heat collection member (300) includes a heat collection plate (310), which is disposed on the outside of the protective cover (500) and covers the opening (501).

10. A stove, characterized in that, It includes at least one burner, the burner being provided with a burner (900), and a heat insulation ring (910) being provided in the middle of the burner (900); The burner (900) is equipped with a dry-burn protection structure as described in any one of claims 1-9 at its center, and the dry-burn protection structure is located inside the heat insulation ring (910); When the movable part (200) is in the first position, the heat collection part (300) is higher than the upper surface of the heat insulation ring (910) and is used to contact the bottom of the pot; When the movable part (200) is in the second position, the heat collection part (300) is lower than the upper surface of the heat insulation ring (910).

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