Gas stove temperature sensor provided with detachable flame isolation device
By designing a detachable flame isolation device, the problem of inconvenient cleaning and maintenance of the anti-dry-burning sensor is solved, achieving stable operation and easy disassembly under different pot bottom shapes, thus improving the safety and service life of the gas stove.
Patent Information
- Application Number
- CN202520225457.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-11
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-02-11
AI Technical Summary
The existing flame isolation device is fixed on the anti-dry-burning sensor, which makes it inconvenient to clean and maintain the anti-dry-burning sensor.
Design a detachable flame isolation device, including a combination structure of a fireproof cover, a connecting sleeve, a mounting sleeve and a first spring, which allows the flame isolation device to move vertically and telescopically, is suitable for pot bottoms of different shapes and curvatures, and ensures that the temperature measuring head of the anti-dry burning sensor is in close contact with the pot bottom through the setting of the limiting ring and the connecting ring, and is easy to disassemble and maintain.
The anti-dry-burning sensor can work stably under various pot bottom shapes, isolating itself from the influence of flames, facilitating cleaning and maintenance, and improving the reliability and service life of the device.
Smart Images
Figure CN223896031U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of safety protection devices for gas stoves, and in particular to a gas stove temperature sensor equipped with a detachable flame isolation device. Background Technology
[0002] Gas stoves, as a common kitchen appliance, are widely used in homes and commercial establishments. As people's living standards improve, the requirements for the safety and functionality of gas stoves are also constantly increasing. Especially in terms of preventing dry burning, existing gas stoves are usually equipped with anti-dry-burn sensors (temperature sensors) to monitor the temperature of the pot bottom, preventing fires caused by dry burning. This safety measure not only improves the safety of gas stove use but also effectively extends its lifespan, reducing economic losses for users.
[0003] Currently, in order to reduce the impact of flames on the anti-dry-burning sensor, a flame isolation device is fixed on the anti-dry-burning sensor, and then the anti-dry-burning sensor with the flame isolation device is installed on the gas stove, so that the temperature measuring head of the anti-dry-burning sensor is in contact with the bottom of the pot, thereby achieving the purpose of preventing dry burning.
[0004] However, the aforementioned technologies have the following problems: directly fixing the flame isolation device to the anti-dry-burning sensor makes it inconvenient to clean and maintain the anti-dry-burning sensor. Utility Model Content
[0005] In order to enable the flame isolation device to be detachable, so as to facilitate the cleaning and maintenance of the anti-dry burning sensor, this application provides a gas stove temperature sensor with a detachable flame isolation device.
[0006] The gas stove temperature sensor with a detachable flame isolation device provided in this application adopts the following technical solution:
[0007] A gas stove temperature sensor with a detachable flame isolation device includes an anti-dry-burning sensor vertically installed in the middle of the gas stove burner with the temperature measuring head facing upwards, and a flame isolation device detachably connected to the anti-dry-burning sensor. The flame isolation device includes a fireproof cover whose top end contacts the bottom of the pot, a connecting sleeve fixedly connected to the bottom end of the fireproof cover, an installation sleeve sleeved on the connecting sleeve, a first spring disposed in the installation sleeve for resetting the fireproof cover, and an installation seat movably sleeved on the periphery of the connecting sleeve. A flame cap is installed on the installation seat, and the flame cap is fixedly sleeved on the periphery of the installation sleeve.
[0008] By adopting the above technical solution, the combined design of the fireproof cover, connecting sleeve and mounting sleeve allows the flame isolation device to move vertically, which is suitable for pot bottoms of different shapes and curvatures, ensuring that the temperature measuring head of the anti-dry-burning sensor is always in close contact with the pot bottom; thus, it can effectively isolate the direct influence of the flame on the anti-dry-burning sensor, ensuring that the anti-dry-burning sensor can maintain a stable working state under various pot bottom shapes; and the detachable connection between the flame isolation device and the anti-dry-burning sensor facilitates the cleaning and maintenance of the anti-dry-burning sensor.
[0009] Preferably, a radially extending limiting ring is fixedly connected to the inner side wall of the mounting sleeve and at the bottom opening of the mounting sleeve, and a connecting ring is fixedly sleeved on the circumference of the connecting sleeve, with the first spring located between the connecting ring and the limiting ring.
[0010] By adopting the above technical solution, the setting of the limiting ring and the connecting ring enables the first spring to reset. Thus, when the bottom of the pot is separated from the fireproof cover, the reset action of the first spring causes the fireproof cover to move upward and reset quickly, ensuring normal operation for the next use.
[0011] Preferably, a first inclined surface is provided on the periphery of the mounting base, and a second inclined surface is provided on the periphery of the fireproof cover, wherein the inclination direction of the second inclined surface is consistent with the inclination direction of the first inclined surface.
[0012] By adopting the above technical solution, the design of the first and second inclined surfaces can guide the liquid to drain outward along the inclined surfaces, thereby effectively reducing the entry of impurities such as water and oil into the moving gap between the connecting sleeve and the mounting base during the use of the cookware, and thus improving the overall reliability and service life of the device.
[0013] Preferably, the mounting base is located above the connecting ring, and the bottom surface of the mounting base limits the connecting ring.
[0014] By adopting the above technical solution, when the bottom of the pot contacts the top of the fireproof cover and the fireproof cover is pressed down, the connecting ring moves down with the fireproof cover. However, due to the limiting effect of the bottom surface of the mounting base on the connecting ring, the connecting ring is prevented from detaching from the mounting sleeve, thus avoiding the problem of flame isolation function failure caused by the connecting ring falling off. This not only improves the safety of the product, but also extends its service life.
[0015] Preferably, the anti-dry-burning sensor includes a temperature sensing element, a mounting tube, and a support tube arranged coaxially and distributed sequentially from the inside to the outside, as well as a connecting spring disposed inside the support tube. A limiting flange is installed at the top of the mounting tube, a heat collection plate is installed at the top of the support tube, the temperature sensing head of the temperature sensing element is installed inside the heat collection plate, and the connecting spring is located between the heat collection plate and the limiting flange.
[0016] By adopting the above technical solution: when the bottom of the pot contacts the top surface of the heat collection plate and presses down on the heat collection plate, since the installation pipe is fixed in the middle of the gas stove burner, the installation pipe and the limiting flange remain fixed, while the support pipe moves down. The downward movement of the support pipe compresses the connecting spring, so that the top surface of the heat collection plate can always be tightly attached to the bottom of the pot.
[0017] Preferably, the bottom end of the support tube forms a limiting part for limiting the limiting flange.
[0018] By adopting the above technical solution, the limiting part is used to limit the limiting flange, so as to minimize the occurrence of the support pipe and the installation pipe detaching.
[0019] Preferably, the support tube is provided with an inner protective tube, the top end of the inner protective tube is fixedly connected to the bottom surface of the heat collection plate, and the body of the inner protective tube is located between the mounting tube and the connecting line of the temperature measuring element.
[0020] By adopting the above technical solution, the inner protective tube can protect the connection wire of the temperature sensing element, so as to minimize the occurrence of wire breakage.
[0021] Preferably, the portion of the inner protective tube extending outside the mounting tube is provided with a clamping part, which clamps the connecting wire of the temperature sensing element.
[0022] By adopting the above technical solution, the inner protective tube can be fixed to the connection wire of the temperature sensing element to protect the connection wire of the temperature sensing element.
[0023] In summary, this application includes at least one of the following beneficial technical effects:
[0024] 1. The combined design of the fireproof cover, connecting sleeve, and mounting sleeve allows the flame isolation device to move vertically, making it suitable for pot bottoms of different shapes and curvatures. This ensures that the temperature measuring head of the anti-dry-burning sensor is always in close contact with the pot bottom, effectively isolating the flame from the direct impact of the anti-dry-burning sensor and ensuring that the anti-dry-burning sensor maintains a stable working state under various pot bottom shapes. Furthermore, the detachable connection between the flame isolation device and the anti-dry-burning sensor facilitates the cleaning and maintenance of the anti-dry-burning sensor.
[0025] 2. The setting of the limiting ring and the connecting ring allows the first spring to return to its original position. Thus, when the bottom of the pot is separated from the fireproof cover, the return action of the first spring causes the fireproof cover to move upward and return to its original position quickly, ensuring normal operation for the next use.
[0026] 3. When the bottom of the pot contacts the top surface of the heat collector plate and presses down on the heat collector plate, since the installation pipe is fixed in the middle of the gas stove burner, the installation pipe and the limiting flange remain stationary, while the support pipe moves down. The downward movement of the support pipe compresses the connecting spring, so that the top surface of the heat collector plate can always be tightly pressed against the bottom of the pot. Attached Figure Description
[0027] Figure 1 This is a schematic diagram of the overall structure of this application.
[0028] Figure 2 This is a cross-sectional view of the anti-dry-burning sensor of this application.
[0029] Figure 3 This is a cross-sectional view of the flame isolation device and flame cap of this application.
[0030] Figure 4 This is an overall sectional view of this application.
[0031] Explanation of reference numerals in the attached drawings: 1. Temperature sensing element; 11. Mounting tube; 111. Limiting flange; 12. Support tube; 121. Limiting part; 122. Heat collecting plate; 13. Connecting spring; 2. Inner protective tube; 21. Pressing part; 3. Fireproof cover; 31. Connecting sleeve; 311. Connecting ring; 32. Mounting sleeve; 321. Limiting ring; 33. First spring; 34. Mounting base; 341. First inclined surface; 35. Flame cap; 36. Second inclined surface. Detailed Implementation
[0032] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.
[0033] This application discloses a gas stove temperature sensor equipped with a detachable flame isolation device. (See also...) Figure 1 and Figure 2 The detachable gas stove temperature sensor with a flame isolation device includes an anti-dry-burning sensor vertically mounted in the center of the gas stove burner with the temperature sensor head facing upwards, and a flame isolation device detachably connected to the anti-dry-burning sensor. The flame isolation device is coaxially arranged with the anti-dry-burning sensor and is sleeved around the periphery of the anti-dry-burning sensor; the top of the flame isolation device and the temperature sensor head of the anti-dry-burning sensor are both in contact with the bottom of the pot. The flame isolation device isolates the anti-dry-burning sensor from the flame, allowing the anti-dry-burning sensor to completely avoid flame interference and protecting it from damage.
[0034] Both the top of the flame isolation device and the temperature sensor of the anti-dry-burning sensor can be vertically extended and retracted to accommodate pot bottoms of different shapes and curvatures, ensuring they fit snugly against the pot bottoms. Specifically: initially, the top of the flame isolation device is higher than the temperature sensor's probe. When the pot bottom is convex (its cross-section is a downward-convex arc), the pot first presses down on the top of the flame isolation device before contacting the probe, at which point the top of the flame isolation device is higher than the probe. When the pot bottom is flat, the pot first presses down on the top of the flame isolation device before contacting the probe, at which point the top of the flame isolation device is flush with the probe. When the pot bottom is concave (its cross-section is an upward-convex arc), the pot first presses down on the top of the flame isolation device before contacting the probe, at which point the top of the flame isolation device is lower than the probe.
[0035] Reference Figure 2 and Figure 3 The anti-dry-burning sensor includes a temperature sensing element 1, a mounting tube 11, and a support tube 12 arranged coaxially and distributed from the inside to the outside, as well as a connecting spring 13 disposed inside the support tube 12. A limiting flange 111 is installed at the top of the mounting tube 11, and the limiting flange 111 slides vertically on the inner wall of the support tube 12. The bottom end of the support tube 12 is reduced by a tube reduction process to form a limiting part 121, which is used to limit the limiting flange 111 so that the mounting tube 11 cannot be detached from the support tube 12. The end of the mounting tube 11 away from the limiting flange 111 extends along the bottom end of the support tube 12 to the outside of the support tube 12, and the mounting tube 11 is installed in the middle of the gas stove burner head.
[0036] A heat collection plate 122 is installed at the top of the support tube 12. The temperature measuring head of the temperature measuring element 1 is installed inside the heat collection plate 122. The connecting line of the temperature measuring element 1 extends downward to the outside of the mounting tube 11. In this embodiment, the heat collection plate 122 is a plate made of heat-conducting material. The top surface of the heat collection plate 122 contacts the bottom of the pot to transfer the temperature of the bottom of the pot to the temperature measuring head of the temperature measuring element 1, thereby avoiding direct contact between the temperature measuring head of the temperature measuring element 1 and the bottom of the pot.
[0037] In order to protect the connection wire of the temperature sensing element 1 and minimize the breakage of the connection wire, an inner protective tube 2 is provided inside the support tube 12. The top connector of the inner protective tube 2 is fixedly connected to the bottom surface of the heat collection plate 122. The tube body of the inner protective tube 2 is located between the mounting tube 11 and the connection wire of the temperature sensing element 1, and the bottom end of the inner protective tube 2 extends outside the mounting tube 11. The part of the inner protective tube 2 extending outside the mounting tube 11 is formed into a pressing part 21 by an extrusion process. The pressing part 21 presses the connection wire of the temperature sensing element 1.
[0038] In this embodiment, the temperature sensing element 1 includes, but is not limited to, NTC, thermocouple, and resistance temperature detector; the connecting spring 13 is a high-temperature resistant spring. The connecting spring 13 is sleeved on the periphery of the inner protective tube 2, and the top end of the connecting spring 13 is connected to the top end connector of the inner protective tube 2, and the bottom end of the connecting spring 13 is connected to the top surface of the limiting flange 111.
[0039] Therefore, when the bottom of the pot contacts the top surface of the heat collector plate 122 and presses down on the heat collector plate 122, since the mounting pipe 11 is fixed in the middle of the gas stove burner, the mounting pipe 11 and the limiting flange 111 remain fixed, while the support pipe 12 moves down. The downward movement of the support pipe 12 compresses the connecting spring 13, so that the top surface of the heat collector plate 122 can always be tightly pressed against the bottom of the pot. When the bottom of the pot is separated from the heat collector plate 122, the heat collector plate 122 moves up to reset under the reset action of the connecting spring 13. At the same time, under the limiting action of the limiting flange 111 on the limiting part 121, the support pipe 12 is prevented from separating from the mounting pipe 11 during the reset process.
[0040] Temperature sensing element 1 can be set with a corresponding temperature threshold, and temperature sensing element 1 is electrically connected to the electric valve on the gas pipeline. When the bottom of the pot is dry-burning and the temperature is higher than the temperature threshold of temperature sensing element 1, temperature sensing element 1 sends an electrical signal to the electric valve to close the electric valve, thereby stopping the gas supply to the gas stove and causing the flame on the gas stove to extinguish automatically.
[0041] Reference Figure 2-4 The flame isolation device includes a fireproof cover 3 with its top end in contact with the bottom of the pot, a connecting sleeve 31 fixedly connected to the bottom end of the fireproof cover 3, an mounting sleeve 32 sleeved on the connecting sleeve 31, a first spring 33 disposed inside the mounting sleeve 32, and a mounting base 34 movably sleeved on the periphery of the connecting sleeve 31. The fireproof cover 3, the connecting sleeve 31, and the mounting sleeve 32 are arranged coaxially, and the anti-dry burning sensor is located inside the fireproof cover 3. A radially extending limiting ring 321 is fixedly connected to the inner wall of the mounting sleeve 32 and at the bottom opening of the mounting sleeve 32. A connecting ring 311 is fixedly sleeved on the periphery of the connecting sleeve 31, and the connecting ring 311 slides vertically against the inner wall of the mounting sleeve 32. The first spring 33 is sleeved on the periphery of the connecting sleeve 31, and the top end of the first spring 33 is connected to the bottom surface of the connecting ring 311, and the bottom end of the first spring 33 is connected to the top surface of the limiting ring 321.
[0042] The mounting base 34 is located above the connecting ring 311, and the bottom surface of the mounting base 34 limits the connecting ring 311. A flame cap 35 is installed on the mounting base 34, and the flame cap 35 is fixedly sleeved on the periphery of the mounting sleeve 32. In use, the flame cap 35 is placed on the burner head. When the bottom of the pot contacts the top of the fireproof cover 3 and the fireproof cover 3 is pressed down, the mounting sleeve 32 is fixed by the flame cap 35, preventing the mounting sleeve 32 from moving down, while the fireproof cover 3 moves down. The moving fireproof cover 3 compresses the first spring 33 through the connecting ring 311, so that the top of the fireproof cover 3 can always be tightly pressed against the bottom of the pot, and the anti-dry burning sensor is completely protected from flame interference. When the bottom of the pot is separated from the fireproof cover 3, the fireproof cover 3 moves up to reset under the reset action of the first spring 33. At the same time, the limiting action of the mounting base 34 on the connecting ring 311 prevents the connecting sleeve 31 from separating from the mounting sleeve 32 during the reset process.
[0043] In this embodiment, the first spring 33 is a high-temperature resistant spring. A first inclined surface 341 is provided on the periphery of the mounting base 34, and the first inclined surface 341 is inclined downwards away from the connecting sleeve 31. A second inclined surface 36 is provided on the periphery of the fireproof cover 3, and the inclination direction of the second inclined surface 36 is consistent with the inclination direction of the first inclined surface 341. The presence of the second inclined surface 36 and the first inclined surface 341 can reduce the entry of water, oil, etc., into the movement gap between the connecting sleeve 31 and the mounting base 34.
[0044] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A gas stove temperature sensor equipped with a detachable flame isolation device, characterized in that: It includes an anti-dry-burning sensor that is vertically installed in the middle of the gas stove burner with the temperature measuring head facing upwards, and a flame isolation device that is detachably connected to the anti-dry-burning sensor. The flame isolation device includes a fireproof cover (3) with its top end in contact with the bottom of the pot, a connecting sleeve (31) fixedly connected to the bottom end of the fireproof cover (3), an installation sleeve (32) sleeved on the connecting sleeve (31), a first spring (33) set in the installation sleeve (32) for resetting the fireproof cover (3), and an installation seat (34) movably sleeved on the periphery of the connecting sleeve (31). A flame cap (35) is installed on the installation seat (34), and the flame cap (35) is fixedly sleeved on the periphery of the installation sleeve (32).
2. A gas stove temperature sensor equipped with a detachable flame isolation device according to claim 1, characterized in that: A radially extending limiting ring (321) is fixedly connected to the inner wall of the mounting sleeve (32) and at the bottom opening of the mounting sleeve (32). A connecting ring (311) is fixedly sleeved on the circumference of the connecting sleeve (31). The first spring (33) is located between the connecting ring (311) and the limiting ring (321).
3. A gas stove temperature sensor equipped with a detachable flame isolation device according to claim 1, characterized in that: The mounting base (34) has a first inclined surface (341) on its periphery, and the fireproof cover (3) has a second inclined surface (36) on its periphery. The inclination direction of the second inclined surface (36) is consistent with the inclination direction of the first inclined surface (341).
4. A gas stove temperature sensor equipped with a detachable flame isolation device according to claim 2, characterized in that: The mounting base (34) is located above the connecting ring (311), and the bottom surface of the mounting base (34) limits the connecting ring (311).
5. A gas stove temperature sensor equipped with a detachable flame isolation device according to claim 1, characterized in that: The anti-dry-burning sensor includes a temperature sensing element (1), a mounting tube (11), and a support tube (12) arranged coaxially and distributed from the inside to the outside, as well as a connecting spring (13) disposed inside the support tube (12). A limiting flange (111) is installed at the top of the mounting tube (11), and a heat collection plate (122) is installed at the top of the support tube (12). The temperature sensing head of the temperature sensing element (1) is installed inside the heat collection plate (122), and the connecting spring (13) is located between the heat collection plate (122) and the limiting flange (111).
6. A gas stove temperature sensor equipped with a detachable flame isolation device according to claim 5, characterized in that: The bottom end of the support tube (12) forms a limiting part (121) for limiting the limiting flange (111).
7. A gas stove temperature sensor equipped with a detachable flame isolation device according to claim 5, characterized in that: The support tube (12) is provided with an inner protective tube (14). The top end of the inner protective tube (14) is fixedly connected to the bottom surface of the heat collection plate (122). The tube body of the inner protective tube (14) is located between the connection line of the mounting tube (11) and the temperature measuring element (1).
8. A gas stove temperature sensor equipped with a detachable flame isolation device according to claim 7, characterized in that: The inner protective tube (2) is provided with a clamping part (21) extending outside the mounting tube (11), and the clamping part (21) clamps the connecting wire of the temperature measuring element (1).