Detachable gas stove temperature sensor with flame isolation device

Abstract

The utility model relates to a detachable gas stove temperature sensor with a flame isolation device, which comprises an anti-dry-burning sensor which is vertically arranged in the middle of a gas stove burner and is provided with an upward temperature measuring head, and a flame isolation device which is detachably connected to the anti-dry-burning sensor, the flame isolation device comprises a first spring, a first mounting base arranged on the dry burning prevention sensor, a first fireproof cover and a mounting cover, the first fireproof cover and the mounting cover are sequentially arranged from top to bottom, and the peripheral side of the mounting cover is fixedly sleeved with a first limiting ring; the first spring is arranged on the peripheral side of the mounting cover in a sleeving mode and located between the first fireproof cover and the first limiting ring, and the mounting cover abuts against the first mounting base so that the first fireproof cover can be detachably connected to the dry burning prevention sensor. The anti-dry-burning sensor has the advantages that the flame isolation device can be detached, so that the anti-dry-burning sensor can be cleaned and maintained conveniently.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of safety protection devices of gas stoves, in particular to a detachable gas stove temperature sensor with a flame isolation device. BACKGROUND

[0002] As a common kitchen equipment, gas stoves are widely used in families and commercial places; with the improvement of people's living standards, the safety and functionality of gas stoves are also constantly improved. Especially in the aspect of dry burning prevention, the existing gas stoves are usually equipped with dry burning prevention sensors (temperature sensors) to monitor the temperature of the pot bottom to prevent fire accidents caused by dry burning of the pot; such safety measures not only improve the safety of gas stoves, but also effectively prolong the service life of gas stoves and reduce the economic loss of users.

[0003] In order to reduce the influence of flame on the dry burning prevention sensor, the existing flame isolation device is fixed on the dry burning prevention sensor, and then the dry burning prevention sensor with the flame isolation device is installed on the gas stove, so that the temperature measuring head of the dry burning prevention sensor is in contact with the pot bottom, thereby achieving the purpose of dry burning prevention.

[0004] However, the above-mentioned related technology has the following problems: directly fixing the flame isolation device on the dry burning prevention sensor is not convenient for cleaning and maintaining the dry burning prevention sensor. CONTENT OF THE INVENTION

[0005] In order to realize the detachability of the flame isolation device, so as to facilitate the cleaning and maintenance of the dry burning prevention sensor, the present application provides a detachable gas stove temperature sensor with a flame isolation device.

[0006] The detachable gas stove temperature sensor with a flame isolation device provided by the present application adopts the following technical scheme:

[0007] A detachable gas stove temperature sensor with a flame isolation device, comprising a dry burning prevention sensor vertically installed in the middle of the burner of the gas stove and having a temperature measuring head facing upward, and a flame isolation device detachably connected to the dry burning prevention sensor, wherein the flame isolation device comprises a first spring, a first mounting seat arranged on the dry burning prevention sensor, and a first fireproof cover and a mounting cover arranged in sequence from top to bottom, a first limiting ring is fixedly sleeved on the periphery of the mounting cover, the first spring is sleeved on the periphery of the mounting cover and located between the first fireproof cover and the first limiting ring, and the mounting cover abuts against the first mounting seat, so as to realize the detachable connection of the first fireproof cover to the dry burning prevention sensor.

[0008] By adopting the technical scheme, the first spring is located between the first fireproof cover and the first limiting ring, so that the first fireproof cover can be compressed downward when the bottom of the pot exerts pressure and return to the original position after the pressure is released, so that the top end of the first fireproof cover is always tightly attached to the bottom of the pot, so that the flame isolation device plays a role in isolating the flame from the dry-burning prevention sensor, so that the dry-burning prevention sensor can completely avoid the interference of the flame and protect the dry-burning prevention sensor from being damaged; and the detachable connection of the flame isolation device and the dry-burning prevention sensor facilitates the cleaning and maintenance of the dry-burning prevention sensor.

[0009] Preferably, the inner side wall of the mounting cover is integrally formed with a radially extending mounting ring, and when the mounting cover is sleeved on the dry-burning prevention sensor, the bottom surface of the mounting ring abuts against the top surface of the first mounting seat.

[0010] By adopting the technical scheme, the cooperation of the mounting ring and the first mounting seat realizes the detachable connection of the flame isolation device and the dry-burning prevention sensor, which facilitates the cleaning and maintenance of the dry-burning prevention sensor.

[0011] Preferably, the flame isolation device further comprises an outer cover, and the top end of the outer cover is fixedly connected with the bottom end of the first fireproof cover.

[0012] By adopting the technical scheme, the outer cover plays a protective role for the first spring.

[0013] Preferably, the bottom end of the outer cover is fixedly connected with a radially extending blocking ring, and the blocking ring is clamped with the first limiting ring.

[0014] By adopting the technical scheme, the blocking ring is clamped with the first limiting ring, which can effectively prevent the first fireproof cover from being pulled out of the mounting cover during the resetting process, so as to ensure that the flame isolation device is stably and reliably kept on the side of the dry-burning prevention sensor; this not only improves the safety of the product, but also prolongs the service life.

[0015] Preferably, the bottom end of the first fireproof cover is provided with a sliding part vertically sliding with the mounting cover.

[0016] By adopting the technical scheme, the sliding part plays a guiding role for the vertical movement of the first fireproof cover.

[0017] Preferably, the dry-burning prevention sensor comprises a temperature measuring element, a mounting tube and a support tube which are coaxially arranged and sequentially distributed from inside to outside, and a connecting spring arranged in the inside of the support tube, the top end of the mounting tube is provided with a limiting flange, the top end of the support tube is provided with a heat collecting plate, the temperature measuring head of the temperature measuring element is arranged in the inside of the heat collecting plate, the connecting spring is located between the heat collecting plate and the limiting flange, and the first mounting seat is fixedly sleeved on the side of the reduced tube of the support tube.

[0018] By adopting the above technical scheme, when the bottom of the pot contacts the top surface of the heat collecting plate and presses down the heat collecting plate, since the mounting pipe is fixed in the middle of the gas stove burner, the mounting pipe and the limiting flange are fixed, and the support pipe moves downward, the downward movement of the support pipe compresses the connecting spring, so that the top surface of the heat collecting plate can always be tightly attached to the bottom of the pot.

[0019] Preferably, the bottom end of the support pipe forms a limiting part for limiting the limiting flange.

[0020] By adopting the above technical scheme, the limiting part is used to limit the limiting flange to minimize the disengagement of the support pipe from the mounting pipe.

[0021] Preferably, the inside of the support pipe is provided with an inner protection pipe, the top end joint of the inner protection pipe is fixedly connected with the bottom surface of the heat collecting plate, and the pipe body of the inner protection pipe is located between the mounting pipe and the connecting line of the temperature measuring element.

[0022] By adopting the above technical scheme, the setting of the inner protection pipe can protect the connecting line of the temperature measuring element to minimize the disconnection of the connecting line of the temperature measuring element.

[0023] In summary, the present application has at least one of the following beneficial technical effects:

[0024] 1. The first spring is located between the first fireproof cover and the first limiting ring, which ensures that the first fireproof cover can be compressed downward when subjected to the pressure of the bottom of the pot and restored to its original position after the pressure is released, so that the top end of the first fireproof cover is always tightly attached to the bottom of the pot, so that the flame isolation device plays a role in isolating the flame from the dry burning sensor, so that the dry burning sensor can completely avoid the interference of the flame and protect the dry burning sensor from being damaged; and the detachable connection of the flame isolation device and the dry burning sensor facilitates the cleaning and maintenance of the dry burning sensor.

[0025] 2. The cooperation of the mounting ring and the first mounting seat realizes the detachable connection of the flame isolation device and the dry burning sensor, which facilitates the cleaning and maintenance of the dry burning sensor.

[0026] 3. When the bottom of the pot contacts the top surface of the heat collecting plate and presses down the heat collecting plate, since the mounting pipe is fixed in the middle of the gas stove burner, the mounting pipe and the limiting flange are fixed, and the support pipe moves downward, the downward movement of the support pipe compresses the connecting spring, so that the top surface of the heat collecting plate can always be tightly attached to the bottom of the pot. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 is a schematic diagram of the overall structure of the present application.

[0028] Figure 2 is a sectional view of the dry burning sensor and the first mounting seat of the present application.

[0029] Figure 3 is a structural schematic view of a first mounting seat of the present application.

[0030] Figure 4 is a sectional view of a flame isolation device of the present application.

[0031] Figure 5 is an overall sectional view of the present application.

[0032] Explanation of Reference Signs: 1, temperature measuring element; 11, mounting pipe; 111, limiting flange; 12, support pipe; 121, limiting part; 122, heat collecting plate; 13, connecting spring; 14, inner protection pipe; 141, pressing part; 2, first spring; 21, first mounting seat; 22, first fireproof cover; 221, sliding part; 23, outer cover; 231, blocking ring; 24, mounting cover; 241, first limiting ring; 242, mounting ring. DETAILED DESCRIPTION

[0033] The following will be described in detail with reference to the accompanying drawings. Figures 1-5 The present application will be further described in detail.

[0034] The present application discloses a detachable gas stove temperature sensor with a flame isolation device. Referring to Figure 1 and Figure 2 The detachable gas stove temperature sensor with a flame isolation device comprises a dry burning prevention sensor vertically mounted in the middle of a gas stove burner head and with a temperature measuring head facing upward, and a flame isolation device detachably connected to the dry burning prevention sensor. The flame isolation device is coaxially arranged with the dry burning prevention sensor, and is sleeved on the circumferential side of the dry burning prevention sensor. The top end of the flame isolation device and the temperature measuring head of the dry burning prevention sensor are both in abutment with the bottom of a pot. The flame isolation device plays a role of isolating flame for the dry burning prevention sensor, so that the dry burning prevention sensor can completely avoid the interference of flame and is protected from being damaged.

[0035] The top end of the flame isolation device and the temperature measuring head of the dry burning prevention sensor can vertically and telescopically move to adapt to different shapes and different radii of the pot bottom, so that the top end of the flame isolation device and the temperature measuring head of the dry burning prevention sensor can completely adhere to the pot bottom of different shapes and different radii. That is, in the initial state, the top end of the flame isolation device is higher than the temperature measuring head of the dry burning prevention sensor. When the pot bottom is a convex pot bottom (the cross section of the pot bottom is a downward convex arc surface), the pot first presses down the top end of the flame isolation device, and then contacts the temperature measuring head of the dry burning prevention sensor. At this time, the top end of the flame isolation device is higher than the temperature measuring head of the dry burning prevention sensor. When the pot bottom is a flat pot bottom, the pot first presses down the top end of the flame isolation device, and then contacts the temperature measuring head of the dry burning prevention sensor. At this time, the top end of the flame isolation device is flush with the temperature measuring head of the dry burning prevention sensor. When the pot bottom is a concave pot bottom (the cross section of the pot bottom is an upward convex arc surface), the pot first presses down the top end of the flame isolation device, and then contacts the temperature measuring head of the dry burning prevention sensor. At this time, the top end of the flame isolation device is lower than the temperature measuring head of the dry burning prevention sensor.

[0036] With reference to Figure 2 and Figure 3 , the dry burning prevention sensor comprises a temperature measuring element 1, a mounting pipe 11 and a support pipe 12 which are coaxially arranged and sequentially distributed from inside to outside, and a connecting spring 13 arranged inside the support pipe 12; the top end of the mounting pipe 11 is provided with a limiting flange 111 which vertically slides on the inner side wall of the support pipe 12, and the bottom end of the support pipe 12 is shrunk by a shrink pipe process to form a limiting portion 121 for limiting the limiting flange 111 so that the mounting pipe 11 cannot be separated from the support pipe 12; one end of the mounting pipe 11 away from the limiting flange 111 extends to the outside of the support pipe 12 along the bottom end of the support pipe 12, and the mounting pipe 11 is mounted in the middle of the gas stove burner.

[0037] The top end of the support pipe 12 is provided with a heat collecting plate 122, the temperature measuring head of the temperature measuring element 1 is arranged inside the heat collecting plate 122, and the connecting wire of the temperature measuring element 1 extends downward to the outside of the mounting pipe 11; in this embodiment, the heat collecting plate 122 is a plate body made of heat conductive material, and the top surface of the heat collecting plate 122 contacts the pot bottom to transfer the temperature of the pot bottom 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 pot bottom.

[0038] In order to protect the connecting wire of the temperature measuring element 1 and minimize the breakage of the connecting wire of the temperature measuring element 1, an inner protection pipe 14 is arranged inside the support pipe 12, the top end joint of the inner protection pipe 14 is fixedly connected with the bottom surface of the heat collecting plate 122, the pipe body of the inner protection pipe 14 is located between the mounting pipe 11 and the connecting wire of the temperature measuring element 1, and the bottom end of the inner protection pipe 14 extends to the outside of the mounting pipe 11; the part of the inner protection pipe 14 extending to the outside of the mounting pipe 11 is formed into a pressing portion 141 by an extrusion process, and the pressing portion 141 presses the connecting wire of the temperature measuring element 1.

[0039] 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 14, and the top end of the connecting spring 13 is connected to the top end connector of the inner protective tube 14, and the bottom end of the connecting spring 13 is connected to the top surface of the limiting flange 111.

[0040] 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.

[0041] 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.

[0042] Reference Figures 2-4 The flame isolation device includes a first spring 2, a first mounting base 21 fixedly sleeved on the periphery of the reduced tube section of the support tube 12, and a first fireproof cover 22, an outer cover 23, and a mounting cover 24 arranged coaxially from top to bottom. The anti-dry-burning sensor is located inside the first fireproof cover 22. The bottom end of the first fireproof cover 22 is reduced in length using a tube-reducing process to form a sliding part 221. The bottom end of the sliding part 221 extends along the upper opening of the mounting cover 24 into the mounting cover 24, and the sliding part 221 slides vertically with the mounting cover 24. A first limiting ring 241 is fixedly sleeved on the periphery of the mounting cover 24. A first spring 2 is sleeved on the periphery of the mounting cover 24, and the top end of the first spring 2 is connected to the bottom end of the first fireproof cover 22. The bottom end of the first spring 2 is connected to the top surface of the first limiting ring 241. The top end of the outer cover 23 is fixedly connected to the bottom end of the first fireproof cover 22. A radially extending blocking ring 231 is fixedly connected to the bottom end of the outer cover 23. The blocking ring 231 is located below the first limiting ring 241, and the blocking ring 231 is engaged with the first limiting ring 241.

[0043] In this embodiment, the first spring 2 is a high-temperature resistant spring. The inner sidewall of the mounting cover 24 is integrally formed with a radially extending mounting ring 242. When the mounting cover 24 is fitted onto the anti-dry-burning sensor from top to bottom, the bottom surface of the mounting ring 242 abuts against the top surface of the first mounting base 21, thereby realizing a detachable connection between the flame isolation device and the anti-dry-burning sensor.

[0044] Reference Figure 5 Therefore, when the bottom of the pot contacts the top of the first fireproof cover 22 and presses down on the first fireproof cover 22, the first mounting base 21 limits the mounting ring 242, preventing the mounting cover 24 from moving down, while the first fireproof cover 22 moves down. The moving first fireproof cover 22 compresses the first spring 2, ensuring that the top of the first fireproof cover 22 is always tightly attached to the bottom of the pot, and completely avoiding interference from the flame for the anti-dry-burning sensor. When the bottom of the pot detaches from the first fireproof cover 22, the first fireproof cover 22 moves up to reset under the reset action of the first spring 2. At the same time, the first limiting ring 241 limits the blocking ring 231, preventing the first fireproof cover 22 from detaching from the mounting cover 24 during the reset process.

[0045] 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 detachable gas stove temperature sensor with a flame isolation device, characterized in that: The 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 first spring (2), a first mounting base (21) set on the anti-dry-burning sensor, and a first fireproof cover (22) and a mounting cover (24) arranged sequentially from top to bottom. A first limiting ring (241) is fixedly sleeved on the periphery of the mounting cover (24). The first spring (2) is sleeved on the periphery of the mounting cover (24) and located between the first fireproof cover (22) and the first limiting ring (241). The mounting cover (24) abuts against the first mounting base (21) so that the first fireproof cover (22) can be detachably connected to the anti-dry-burning sensor.

2. A detachable gas stove temperature sensor with a flame isolation device according to claim 1, characterized in that: The inner wall of the mounting cover (24) is integrally formed with a radially extending mounting ring (242). When the mounting cover (24) is fitted onto the anti-dry burning sensor, the bottom surface of the mounting ring (242) abuts against the top surface of the first mounting base (21).

3. A detachable gas stove temperature sensor with a flame isolation device according to claim 2, characterized in that: The flame isolation device also includes an outer cover (23), the top of which is fixedly connected to the bottom of the first fireproof cover (22).

4. A detachable gas stove temperature sensor with a flame isolation device according to claim 3, characterized in that: The bottom end of the outer cover (23) is fixedly connected to a radially extending blocking ring (231), which is engaged with the first limiting ring (241).

5. A detachable gas stove temperature sensor with a flame isolation device according to claim 2, characterized in that: The bottom end of the first fireproof cover (22) is provided with a sliding part (221) that slides vertically with the mounting cover (24).

6. A detachable gas stove temperature sensor with a flame isolation device according to claim 2, characterized in that: The anti-dry-burning sensor includes a temperature measuring 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 measuring head of the temperature measuring element (1) is installed inside the heat collection plate (122). The connecting spring (13) is located between the heat collection plate (122) and the limiting flange (111). The first mounting seat (21) is fixedly sleeved on the periphery of the constricted section of the support tube (12).

7. A detachable gas stove temperature sensor with a flame isolation device according to claim 6, characterized in that: The bottom end of the support tube (12) forms a limiting part (121) for limiting the limiting flange (111).

8. A detachable gas stove temperature sensor with a flame isolation device according to claim 6, 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).

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