Temperature sensor detachably connected with flame isolation device

Abstract

The invention relates to a temperature sensor detachably connected with a flame isolation device, and the temperature sensor comprises an anti-dry-burning sensor which is vertically installed at the axis of a furnace end through an installation part and is provided with an upward temperature measurement head, and a flame isolation device detachably connected to the anti-dry-burning sensor, and the flame isolation device sleeves the peripheral side of the anti-dry-burning sensor. The top end of the flame isolation device and a temperature measuring head of the dry burning prevention sensor can vertically stretch and move so as to be suitable for pot bottoms of different shapes and different radians. 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 anti-dry burning sensors, and in particular to a temperature sensor detachably connected to a flame isolation device. Background Art

[0002] As a common kitchen appliance, gas stoves are widely used in homes and commercial places. With the improvement of people's living standards, the requirements for the safety and functionality of gas stoves are also increasing. Especially in terms of dry burning prevention, existing gas stoves are usually equipped with dry burning prevention sensors (temperature sensors) to monitor the temperature of the bottom of the pot to prevent fire accidents caused by dry burning of the pot. This safety measure not only improves the safety of gas stoves, but also effectively extends the service life of gas stoves and reduces the economic losses of users.

[0003] In order to reduce the influence of flame 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 contacts the bottom of the pot, thereby achieving the purpose of preventing dry burning.

[0004] However, the above-mentioned related technologies have the following problems: directly fixing the flame isolation device on the anti-dry-burning sensor makes it inconvenient to clean and maintain the anti-dry-burning sensor. Summary of the invention

[0005] In order to achieve the detachability of the flame isolation device to facilitate the cleaning and maintenance of the anti-dry burning sensor, the present application provides a temperature sensor detachably connected to the flame isolation device.

[0006] The present application provides a temperature sensor with a detachable flame isolation device, which adopts the following technical solution: A temperature sensor detachably connected to a flame isolation device comprises an anti-dry-burning sensor which is vertically mounted at the axis of a furnace head through a mounting piece and has a temperature measuring head facing upward, and a flame isolation device detachably connected to the anti-dry-burning sensor. The flame isolation device is sleeved on the circumference of the anti-dry-burning sensor. The top of the flame isolation device and the temperature measuring head of the anti-dry-burning sensor can be telescopically moved vertically to adapt to pot bottoms of different shapes and curvatures.

[0007] By adopting the above technical solution, the flame isolation device and the temperature measuring head of the anti-dry-burning sensor can be telescopically moved vertically to ensure that the two can completely adhere to the bottom of the pot with different shapes and curvatures, so that the flame isolation device can isolate the flame from the anti-dry-burning sensor, so that the anti-dry-burning sensor can completely avoid the interference of the flame and protect the anti-dry-burning sensor from being damaged; 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.

[0008] Preferably, a clamping portion protrudes from the mounting tube of the anti-dry-burning sensor, and the mounting component includes a first mounting body detachably connected to the burner head via an extension portion, a second mounting body detachably connected to the first mounting body, a first clamping block vertically sliding inside the first mounting body and clamped with the clamping portion, and a second clamping block vertically sliding inside the second mounting body and clamped with the clamping portion. A lifting component connected to the first clamping block is provided on the first mounting body, and the lifting component drives the mounting tube and the second clamping block to rise and fall simultaneously via the first clamping block to ensure that the mounting tube is installed at an appropriate height.

[0009] By adopting the above technical solution, during the installation process, the mounting tube is first placed between the first mounting body and the second mounting body, and then the first mounting body is installed on the second mounting body so that the first clamping block and the second clamping block are simultaneously clamped with the clamping portion, and then the extension portion is installed on the bottom surface of the burner head, and then the mounting tube is installed at the axis of the burner head.

[0010] Preferably, the lifting member includes a screw rotatably connected to the inside of the first mounting body and threadedly connected to the first clamping block, a ratchet fixedly sleeved on the circumference of the screw and located below the first mounting body, a pawl rotatably connected to the bottom surface of the first mounting body and abutting against the ratchet, and a leaf spring arranged on the bottom surface of the first mounting body and abutting against the pawl.

[0011] By adopting the above technical solution, after the mounting tube is installed at the axis of the furnace head, the screw can be rotated by a tool. Since the screw is threadedly connected to the first clamping block, and the clamping portion is clamped between the first clamping block and the second clamping block, the first clamping block and the second clamping block jointly drive the mounting tube to move upward, so as to achieve the installation of the mounting tube at a suitable height position; at the same time, since the pawl abuts against the ratchet wheel, the screw cannot rotate in the opposite direction, thereby locking the adjusted screw.

[0012] Preferably, the flame isolation device includes a first spring, a first mounting seat arranged on the anti-dry burning 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 circumferential side of the mounting cover, the first spring is sleeved on the circumferential side of the mounting cover, and the first spring is located between the first fireproof cover and the first limiting ring, 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 anti-dry burning sensor, the bottom surface of the mounting ring abuts against the top surface of the first mounting seat.

[0013] By adopting the above technical solution, the first spring is located between the first fireproof cover and the first limiting ring, ensuring that the first fireproof cover can be compressed downward when subjected to the pressure from the bottom of the pot and return to its original position after the pressure is released, so that the top of the first fireproof cover is always tightly fitted to the bottom of the pot, effectively isolating the influence of the flame on the anti-dry-burning sensor; at the same time, the cooperation between the mounting ring and the first mounting seat realizes the detachable connection between the flame isolation device and the anti-dry-burning sensor, which is convenient for cleaning and maintenance of the anti-dry-burning sensor.

[0014] Preferably, the flame isolation device further comprises an outer cover, the top end of which is fixedly connected to the bottom end of the first fireproof cover.

[0015] By adopting the above technical solution, the provision of the outer cover plays a protective role on the first spring.

[0016] Preferably, a radially extending blocking ring is fixedly connected to the bottom end of the outer cover, and the blocking ring is clamped with the first limiting ring.

[0017] By adopting the above technical solution, the blocking ring is clamped with the first limiting ring, which can effectively prevent the first fireproof cover from falling off the installation cover during the resetting process, ensuring that the flame isolation device is stably and reliably maintained on the surrounding side of the anti-dry burning sensor; this not only improves the safety of the product, but also extends its service life.

[0018] Preferably, a sliding portion is provided at the bottom end of the first fireproof cover for vertical sliding with the mounting cover.

[0019] By adopting the above technical solution, the sliding part guides the vertical movement of the first fireproof cover.

[0020] Preferably, the flame isolation device includes a second fireproof cover whose top end contacts the bottom of the pot, a connecting sleeve fixedly connected to the bottom end of the second fireproof cover, a mounting sleeve sleeved on the connecting sleeve, a second spring arranged in the mounting sleeve and a second mounting seat movably mounted on the circumferential side of the connecting sleeve, a second radially extending limiting ring is fixedly connected to the inner side wall of the mounting sleeve and the bottom end opening of the mounting sleeve, a connecting ring is fixedly mounted on the circumferential side of the connecting sleeve, the second spring is located between the connecting ring and the second limiting ring, a fire cover is mounted on the second mounting seat, and the fire cover is fixedly mounted on the circumferential side of the mounting sleeve.

[0021] By adopting the above technical scheme, the combined design of the second fireproof cover, the connecting sleeve and the mounting sleeve allows the flame isolation device to be telescopically moved 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; thereby being able to effectively isolate the direct impact 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 when the pot bottom is separated from the contact with the second fireproof cover, the reset action of the second spring causes the second fireproof cover to quickly move up and reset, ensuring normal operation next time it is used.

[0022] Preferably, a first inclined surface is provided on the peripheral side of the second mounting seat, and a second inclined surface is provided on the peripheral side of the second fireproof cover, and the inclination direction of the second inclined surface is consistent with the inclination direction of the first inclined surface.

[0023] By adopting the above technical solution, the design of the first inclined surface and the second inclined surface can guide the liquid to be discharged outward along the inclined surfaces, thereby effectively reducing the entry of impurities such as water and oil into the movable gap between the connecting sleeve and the second mounting seat during the use of the cookware, thereby improving the overall reliability and service life of the device.

[0024] Preferably, the second mounting seat is located above the connecting ring, and the bottom surface of the second mounting seat limits the connecting ring.

[0025] By adopting the above technical solution, when the bottom of the pot contacts the top of the second fireproof cover and presses down the second fireproof cover, the connecting ring moves down with the second fireproof cover, but due to the limiting effect of the bottom surface of the second mounting seat on the connecting ring, the connecting ring is prevented from detaching from the mounting sleeve, thereby avoiding the problem of failure of the flame isolation function due to the falling off of the connecting ring; this not only improves the safety of the product, but also extends its service life.

[0026] In summary, the present application includes at least one of the following beneficial technical effects: 1. Both the flame isolation device and the temperature measuring head of the anti-dry-burning sensor can be telescopically moved vertically to ensure that the two can completely fit the bottom of pots of different shapes and curvatures. Thus, the flame isolation device can isolate the flame from the anti-dry-burning sensor, so that the anti-dry-burning sensor can completely avoid the interference of the flame and protect the anti-dry-burning sensor from being damaged. 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. 2. After the installation tube is installed at the axis of the furnace head, the screw rod can be rotated by a tool. Since the screw rod is threadedly connected to the first clamping block, and the clamping portion is clamped between the first clamping block and the second clamping block, the first clamping block and the second clamping block jointly drive the installation tube to move upward, so as to install the installation tube at a suitable height position; at the same time, since the pawl abuts against the ratchet wheel, the screw rod cannot rotate in the opposite direction, which plays a role of locking the adjusted screw rod; 3. The first spring is located between the first fireproof cover and the first limiting ring, ensuring that the first fireproof cover can be compressed downward when subjected to the pressure from the bottom of the pot and return to its original position after the pressure is released, so that the top of the first fireproof cover is always in close contact with the bottom of the pot, effectively isolating the effect of the flame on the anti-dry-burning sensor; at the same time, the cooperation between the mounting ring and the first mounting seat realizes the detachable connection between the flame isolation device and the anti-dry-burning sensor, which is convenient for cleaning and maintenance of the anti-dry-burning sensor; 4. The combined design of the second fireproof cover, the connecting sleeve and the mounting sleeve allows the flame isolation device to be telescopically moved 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; thereby effectively isolating the direct impact 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 when the pot bottom is separated from the contact with the second fireproof cover, the reset action of the second spring causes the second fireproof cover to quickly move up and reset, ensuring normal operation next time it is used. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0028] Figure 2 It is a cross-sectional view of the anti-dry-burning sensor and the first mounting base of the first embodiment of the present application.

[0029] Figure 3 It is a structural schematic diagram of the first mounting base of the first embodiment of the present application.

[0030] Figure 4 It is a cross-sectional view of the flame isolation device of Example 1 of the present application.

[0031] Figure 5 It is an overall cross-sectional view of the first embodiment of the present application.

[0032] Figure 6 It is a schematic diagram of the structure of the overall embodiment of the present application from another perspective.

[0033] Figure 7 yes Figure 6 A partial enlarged view of part A.

[0034] Figure 8 It is a schematic structural diagram of the mounting part, the anti-dry burning sensor and the flame isolation device of the first embodiment of the present application.

[0035] Fig. 9 It is an exploded view of the mounting component of the first embodiment of the present application.

[0036] Fig.10 It is a schematic diagram of the overall structure of the second embodiment of the present application.

[0037] Fig.11It is a cross-sectional view of the flame isolation device and the fire cover of the second embodiment of the present application.

[0038] Fig.12 It is an overall cross-sectional view of the second embodiment of the present application.

[0039] Explanation of reference numerals: 1. temperature measuring element; 11. mounting tube; 111. limiting flange; 112. clamping part; 12. bracket tube; 121. limiting part; 122. heat collecting plate; 13. connecting spring; 14. inner protective tube; 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; 3. second fireproof cover; 31. connecting sleeve ; 311, connecting ring; 32, mounting sleeve; 321, second limiting ring; 33, second spring; 34, second mounting seat; 341, first inclined surface; 35, fire cover; 36, second inclined surface; 4, first mounting body; 41, first clamping block; 411, clamping groove; 42, extension part; 43, flange; 44, sliding groove; 45, screw; 451, turntable; 46, ratchet; 47, pawl; 48, leaf spring; 481, connecting shaft; 5, second mounting body; 51, second clamping block; 52, guide rod. DETAILED DESCRIPTION

[0040] The following is combined with Figure 1-Figure 12 This application is described in further detail.

[0041] Embodiment 1 The embodiment of the present application discloses a temperature sensor with a detachable flame isolation device. Figure 1 and Figure 2 The temperature sensor detachably connected with the flame isolation device comprises an anti-dry burning sensor vertically installed at the axis of the burner head of the gas stove with the temperature measuring head facing upward 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 the flame isolation device is sleeved on the circumference of the anti-dry burning sensor; the top of the flame isolation device and the temperature measuring head of the anti-dry burning sensor are both in contact with the bottom of the pot. The flame isolation device isolates the flame from the anti-dry burning sensor, so that the anti-dry burning sensor can completely avoid the interference of the flame and protect the anti-dry burning sensor from being damaged.

[0042] The top of the flame isolation device and the temperature measuring head of the anti-dry burning sensor can be telescopically moved vertically to adapt to pot bottoms of different shapes and curvatures; so that the top of the flame isolation device and the temperature measuring head of the anti-dry burning sensor can be completely close to pot bottoms of different shapes and curvatures. That is, in the initial state, the top of the flame isolation device is higher than the temperature measuring head of the anti-dry burning 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 of the flame isolation device, and then contacts the temperature measuring head of the anti-dry burning sensor. At this time, the top of the flame isolation device is higher than the temperature measuring head of the anti-dry burning sensor. When the pot bottom is a flat pot bottom, the pot first presses down the top of the flame isolation device, and then contacts the temperature measuring head of the anti-dry burning sensor. At this time, the top of the flame isolation device is flush with the temperature measuring head of the anti-dry burning 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 of the flame isolation device, and then contacts the temperature measuring head of the anti-dry burning sensor. At this time, the top of the flame isolation device is lower than the temperature measuring head of the anti-dry burning sensor.

[0043] Reference Figure 2 and Figure 3 The anti-dry burning sensor includes a temperature measuring element 1, a mounting tube 11 and a bracket tube 12 which are coaxially arranged and distributed in sequence from the inside to the outside, and a connecting spring 13 arranged inside the bracket 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 side wall of the bracket tube 12. The bottom end of the bracket tube 12 is shrunk by a tube shrinking process to form a limiting portion 121. The limiting portion 121 is used to limit the limiting flange 111 so that the mounting tube 11 cannot be detached from the bracket tube 12; one end of the mounting tube 11 away from the limiting flange 111 extends along the bottom end of the bracket tube 12 to the outside of the bracket tube 12, and the mounting tube 11 is installed at the axis of the burner head.

[0044] A heat collecting plate 122 is installed at the top of the bracket tube 12, and the temperature measuring head of the temperature measuring element 1 is installed inside the heat collecting plate 122. The connecting line of the temperature measuring element 1 extends downward to the outside of the mounting tube 11. In the present embodiment, the heat collecting plate 122 is a plate body made of heat-conducting material, which contacts the bottom of the pot through the top surface of the heat collecting plate 122 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.

[0045] In order to protect the connecting wire of the temperature measuring element 1 and minimize the disconnection of the connecting wire of the temperature measuring element 1, an inner protective tube 14 is arranged inside the bracket tube 12, and the top joint of the inner protective tube 14 is fixedly connected to the bottom surface of the heat collecting plate 122, and the tube body of the inner protective tube 14 is located between the mounting tube 11 and the connecting wire of the temperature measuring element 1, and the bottom end of the inner protective tube 14 extends to the outside of the mounting tube 11; the part of the inner protective tube 14 extending to the outside of the mounting tube 11 is formed by an extrusion process to form a clamping portion 141, and the clamping portion 141 clamps the connecting wire of the temperature measuring element 1.

[0046] In this embodiment, the temperature measuring element 1 includes but is not limited to NTC, thermocouple, thermal resistor; the connecting spring 13 is a high temperature resistant spring. The connecting spring 13 is sleeved on the circumference of the inner protection tube 14, and the top end of the connecting spring 13 is connected to the top joint of the inner protection tube 14, and the bottom end of the connecting spring 13 is connected to the top surface of the limit flange 111.

[0047] Therefore, when the bottom of the pot contacts the top surface of the heat collecting plate 122 and presses down the heat collecting plate 122, since the mounting tube 11 is fixed at the axis of the burner, the mounting tube 11 and the limiting flange 111 are fixed, and the bracket tube 12 moves downward. The downward movement of the bracket tube 12 compresses the connecting spring 13, so that the top surface of the heat collecting plate 122 can always be tightly attached to the bottom of the pot; when the bottom of the pot is separated from the abutment with the heat collecting plate 122, under the resetting action of the connecting spring 13, the heat collecting plate 122 moves up to be reset; at the same time, under the limiting action of the limiting flange 111 on the limiting part 121, the bracket tube 12 is prevented from being separated from the mounting tube 11 during the resetting process.

[0048] The temperature measuring element 1 can be set with a corresponding temperature threshold, and the temperature measuring element 1 is electrically connected to the electric valve on the gas pipeline. When the bottom of the pot is dry-burned and the temperature is higher than the temperature threshold of the temperature measuring element 1, the temperature measuring element 1 transmits an electrical signal to the electric valve to close the electric valve, thereby stopping the gas supply to the gas stove and automatically extinguishing the fire on the gas stove.

[0049] Reference Figure 2-Figure 4 The flame isolation device includes a first spring 2, a first mounting seat 21 fixedly sleeved on the peripheral side of the bracket tube 12 at the shrinkage position, and a first fireproof cover 22, an outer cover 23 and a mounting cover 24 which are coaxially arranged from top to bottom; the anti-dry burning sensor is located in the first fireproof cover 22, and the bottom end of the first fireproof cover 22 is shrunk by a shrinking process to form a sliding portion 221, and the bottom end of the sliding portion 221 extends along the upper opening of the mounting cover 24 into the mounting cover 24, and the sliding portion 221 slides vertically with the mounting cover 24; the mounting cover A first limiting ring 241 is fixedly sleeved on the circumferential side of the outer cover 24, the first spring 2 is sleeved on the circumferential side 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, and 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, and the bottom end of the outer cover 23 is fixedly connected to a radially extending blocking ring 231, which is located below the first limiting ring 241, and the blocking ring 231 is clamped with the first limiting ring 241.

[0050] In this embodiment, the first spring 2 is a high temperature resistant spring. The inner side wall of the mounting cover 24 is integrally formed with a radially extending mounting ring 242. After the mounting tube 11 is mounted to the axis of the burner, the mounting cover 24 is sleeved on the anti-dry burning sensor from top to bottom, and the bottom surface of the mounting ring 242 abuts against the top surface of the first mounting seat 21, thereby realizing a detachable connection between the flame isolation device and the anti-dry burning sensor.

[0051] Reference Figure 5 Therefore, when the bottom of the pot contacts the top of the first fireproof cover 22 and presses down the first fireproof cover 22, the first mounting seat 21 limits the mounting ring 242 so that the mounting cover 24 cannot move downward, and the first fireproof cover 22 moves downward. The first fireproof cover 22 that moves downward compresses the first spring 2, so that the top of the first fireproof cover 22 can always be tightly attached to the bottom of the pot, and the anti-dry burning sensor can completely avoid the interference of the flame; when the bottom of the pot is separated from the contact with the first fireproof cover 22, under the resetting action of the first spring 2, the first fireproof cover 22 moves up to reset; at the same time, under the limiting action of the first limiting ring 241 on the blocking ring 231, the first fireproof cover 22 is prevented from separating from the mounting cover 24 during the resetting process.

[0052] Reference Figure 6-Figure 8 The mounting tube 11 is integrally formed with an outwardly protruding clamping portion 112 on the peripheral side thereof, and a mounting piece is clamped on the clamping portion 112. The mounting piece is mounted on the burner head, thereby mounting the mounting tube 11 at the axis of the burner head.

[0053] Reference Figure 7-Figure 9 The mounting member includes a first mounting body 4 detachably connected to the burner head, a second mounting body 5 detachably connected to the first mounting body 4, a first clamping block 41 disposed inside the first mounting body 4 and clamped with the clamping portion 112, and a second clamping block 51 disposed inside the second mounting body 5 and clamped with the clamping portion 112; a horizontally disposed extension portion 42 is integrally formed on the outer side of the first mounting body 4, and the extension portion 42 is detachably connected to the bottom surface of the burner head through a locking member. In this embodiment, the locking member includes but is not limited to a screw or a bolt, and the locking member vertically penetrates the extension portion 42 and is threadedly connected to the bottom surface of the burner head; thereby the extension portion 42 is mounted on the bottom surface of the burner head.

[0054] The edges of one side of the first mounting body 4 and the second mounting body 5 that are close to each other are both bent with flanges 43. When the first mounting body 4 and the second mounting body 5 are spliced, the flanges 43 on the first mounting body 4 fit with the flanges 43 on the second mounting body 5, and the flanges 43 on the first mounting body 4 are detachably connected to the flanges 43 on the second mounting body 5 through a fixing member. In this embodiment, the fixing member includes but is not limited to a screw or a bolt, and the fixing member passes through the flanges 43 of the first mounting body 4 and is threadedly connected to the flanges 43 of the second mounting body 5; thereby the first mounting body 4 is mounted on the second mounting body 5.

[0055] In order to make the first clamping block 41 and the second clamping block 51 more firmly clamped with the clamping portion 112, the inner side of the first clamping block 41 and the inner side of the second clamping block 51 are both provided with a clamping groove 411 matching the profile of the clamping portion 112. Therefore, during the installation process, the mounting tube 11 is first placed between the first mounting body 4 and the second mounting body 5, and then the first mounting body 4 is mounted on the second mounting body 5, so that the first clamping block 41 and the second clamping block 51 are clamped with the clamping portion 112 at the same time, and then the extension portion 42 is mounted on the bottom surface of the burner head, and then the mounting tube 11 is mounted at the axis of the burner head.

[0056] After the mounting tube 11 is installed at the axis of the furnace head, in order to be able to adjust the height of the mounting tube 11 to ensure that the mounting tube 11 is installed at a suitable height position; a lifting member connected to the first clamping block 41 is provided on the first mounting body 4, and the lifting member drives the mounting tube 11 and the second clamping block 51 to rise and fall simultaneously through the first clamping block 41 to ensure that the mounting tube 11 is installed at a suitable height position.

[0057] The inner side of the first mounting body 4 and the inner side of the second mounting body 5 are both provided with a sliding groove 44, and the first clamping block 41 and the second clamping block 51 both slide vertically in the sliding groove 44 corresponding to the position, and the lifting member includes a screw rod 45 which is vertically arranged and rotatably connected to the sliding groove 44 of the first mounting body 4, a ratchet 46 which is fixedly sleeved on the circumference of the screw rod 45 and located below the first mounting body 4, a pawl 47 which is rotatably connected to the bottom surface of the first mounting body 4 and abuts against the ratchet 46, and a leaf spring 48 which is arranged on the bottom surface of the first mounting body 4 and abuts against the pawl 47; a connecting shaft 481 is fixedly connected to the bottom surface of the first mounting body 4, one end of the leaf spring 48 is fixedly connected to the connecting shaft 481, and the end of the leaf spring 48 away from the connecting shaft 481 abuts against the pawl 47, so that the pawl 47 always has a tendency to abut against the ratchet 46.

[0058] The screw rod 45 vertically penetrates the first block 41 and is threadedly connected to the first block 41. The bottom end of the screw rod 45 is fixedly connected to a turntable 451 located below the ratchet 46, and a cross groove is provided on the bottom surface of the turntable 451 so that the turntable 451 can be rotated by a tool. At the same time, in order to enable the second block 51 to slide vertically more smoothly in the sliding groove 44 of the second mounting body 5, a vertically arranged guide rod 52 is fixedly connected in the sliding groove 44 of the second mounting body 5, and the guide rod 52 penetrates the second block 51 and is slidably connected to the second block 51. A dovetail block is fixedly connected to the outer side of the first block 41, and a dovetail groove corresponding to the position of the dovetail block is provided in the sliding groove 44 of the first mounting body 4. The length direction of the dovetail groove is consistent with the length direction of the screw rod 45, and the dovetail block is slidably connected to the dovetail groove, so that the first block 41 can be slidably connected in the sliding groove 44 of the first mounting body 4 more smoothly.

[0059] In the initial state, the first clamping block 41 and the second clamping block 51 are both in contact with the inner bottom wall of the corresponding sliding groove 44. After the installation tube 11 is installed at the axis of the furnace head, the turntable 451 can be rotated by a tool, so that the turntable 451 drives the screw 45 to rotate. Since the screw 45 is threadedly connected with the first clamping block 41, and the clamping portion 112 is clamped between the first clamping block 41 and the second clamping block 51, the first clamping block 41 and the second clamping block 51 jointly drive the installation tube 11 to move upward, so as to install the installation tube 11 at a suitable height position. At the same time, since the pawl 47 is in contact with the ratchet 46, the screw 45 cannot rotate in the opposite direction, which plays a locking role on the adjusted screw 45.

[0060] Embodiment 2 Reference Figure 10-12 Compared with the first embodiment, the difference lies in: the flame isolation device is different. In this embodiment, the flame isolation device includes a second fireproof cover 3 whose top end contacts the bottom of the pot, a connecting sleeve 31 fixedly connected to the bottom end of the second fireproof cover 3, a mounting sleeve 32 sleeved on the connecting sleeve 31, a second spring 33 arranged in the mounting sleeve 32 and a second mounting seat 34 movably sleeved on the circumference of the connecting sleeve 31; the second fireproof cover 3, the connecting sleeve 31 and the mounting sleeve 32 are coaxially arranged, and the anti-dry burning sensor is located in the second fireproof cover 3. A radially extending second limiting ring 321 is fixedly connected to the inner side wall of the mounting sleeve 32 and the bottom opening of the mounting sleeve 32; a connecting ring 311 is fixedly sleeved on the circumferential side of the connecting sleeve 31, and the connecting ring 311 slides vertically with the inner side wall of the mounting sleeve 32; the second spring 33 is sleeved on the circumferential side of the connecting sleeve 31, and the top end of the second spring 33 is connected to the bottom surface of the connecting ring 311, and the bottom end of the second spring 33 is connected to the top surface of the second limiting ring 321.

[0061] The second mounting seat 34 is located above the connecting ring 311 , and the bottom surface of the second mounting seat 34 limits the connecting ring 311 ; a fire cover 35 is installed on the second mounting seat 34 , and the fire cover 35 is fixedly sleeved on the peripheral side of the mounting sleeve 32 . When in use, the fire cover 35 is sleeved on the top of the stove head. When the bottom of the pot contacts the top of the second fireproof cover 3 and presses down the second fireproof cover 3, the fire cover 35 fixes the mounting sleeve 32 so that the mounting sleeve 32 cannot move downward, and the second fireproof cover 3 moves downward. The second fireproof cover 3 that moves downward compresses the second spring 33 through the connecting ring 311, so that the top of the second fireproof cover 3 can always be tightly attached to the bottom of the pot, and the anti-dry burning sensor can completely avoid the interference of the flame; when the bottom of the pot is separated from the abutment with the second fireproof cover 3, the second fireproof cover 3 is moved up to be reset under the resetting action of the second spring 33; at the same time, under the limiting action of the second mounting seat 34 on the connecting ring 311, the connection sleeve 31 is prevented from being separated from the mounting sleeve 32 during the resetting process.

[0062] In this embodiment, the second spring 33 is a high temperature resistant spring. A first inclined surface 341 is provided on the circumferential side of the second mounting seat 34, and the first inclined surface 341 is inclined downwardly away from the connecting sleeve 31; a second inclined surface 36 is provided on the circumferential side of the second fireproof cover 3, and the inclined direction of the second inclined surface 36 is consistent with the inclined direction of the first inclined surface 341. The existence of the second inclined surface 36 and the first inclined surface 341 can reduce the entry of water, oil, etc. into the active gap between the connecting sleeve 31 and the second mounting seat 34.

[0063] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A temperature sensor with a detachable flame isolation device, characterized in that: The invention comprises an anti-dry-burning sensor which is vertically installed at the axis of the furnace head through a mounting part and with a temperature measuring head facing upward, and a flame isolation device which is detachably connected to the anti-dry-burning sensor. The flame isolation device is sleeved on the peripheral side of the anti-dry-burning sensor. The top of the flame isolation device and the temperature measuring head of the anti-dry-burning sensor can be telescopically moved vertically to adapt to pot bottoms of different shapes and curvatures.

2. A temperature sensor with a detachable flame isolation device according to claim 1, characterized in that: A clamping portion (112) protrudes from the mounting tube (11) of the anti-dry burning sensor. The mounting member comprises a first mounting body (4) detachably connected to the burner head via an extension portion (42), a second mounting body (5) detachably connected to the first mounting body (4), a first clamping block (41) vertically sliding inside the first mounting body (4) and clamped with the clamping portion (112), and a second clamping block (51) vertically sliding inside the second mounting body (5) and clamped with the clamping portion (112). The first mounting body (4) is provided with a lifting member connected to the first clamping block (41). The lifting member drives the mounting tube (11) and the second clamping block (51) to be lifted and lowered simultaneously via the first clamping block (41) to ensure that the mounting tube (11) is installed at a suitable height position.

3. A temperature sensor with a detachable flame isolation device according to claim 2, characterized in that: The lifting member comprises a screw rod (45) rotatably connected to the inside of the first mounting body (4) and threadedly connected to the first clamping block (41), a ratchet wheel (46) fixedly sleeved on the circumference of the screw rod (45) and located below the first mounting body (4), a ratchet pawl (47) rotatably connected to the bottom surface of the first mounting body (4) and abutting against the ratchet wheel (46), and a leaf spring (48) arranged on the bottom surface of the first mounting body (4) and abutting against the ratchet pawl (47).

4. A temperature sensor with a detachable flame isolation device according to claim 1, characterized in that: The flame isolation device comprises a first spring (2), a first mounting seat (21) arranged on the anti-dry burning sensor, and a first fireproof cover (22) and a mounting cover (24) arranged in sequence from top to bottom, a first limiting ring (241) is fixedly sleeved on the circumference of the mounting cover (24), the first spring (2) is sleeved on the circumference of the mounting cover (24), and the first spring (2) is located between the first fireproof cover (22) and the first limiting ring (241), the inner side wall of the mounting cover (24) is integrally formed with a radially extending mounting ring (242), and when the mounting cover (24) is sleeved on the anti-dry burning sensor, the bottom surface of the mounting ring (242) abuts against the top surface of the first mounting seat (21).

5. A temperature sensor with a detachable flame isolation device according to claim 4, characterized in that: The flame isolation device further comprises an outer cover (23), the top end of the outer cover (23) being fixedly connected to the bottom end of the first fireproof cover (22).

6. A temperature sensor with a detachable flame isolation device according to claim 5, characterized in that: A radially extending blocking ring (231) is fixedly connected to the bottom end of the outer cover (23), and the blocking ring (231) is clamped with a first limiting ring (241).

7. A temperature sensor with a detachable flame isolation device according to claim 4, characterized in that: The bottom end of the first fireproof cover (22) is provided with a sliding portion (221) that slides vertically with the mounting cover (24).

8. A temperature sensor with a detachable flame isolation device according to claim 1, characterized in that: The flame isolation device comprises a second fireproof cover (3) whose top end contacts the bottom of the pot, a connecting sleeve (31) fixedly connected to the bottom end of the second fireproof cover (3), a mounting sleeve (32) sleeved on the connecting sleeve (31), a second spring (33) arranged in the mounting sleeve (32) and a second mounting seat (34) movably sleeved on the peripheral side of the connecting sleeve (31), a second radially extending second limiting ring (321) is fixedly connected to the inner side wall of the mounting sleeve (32) and located at the bottom end opening of the mounting sleeve (32), a connecting ring (311) is fixedly sleeved on the peripheral side of the connecting sleeve (31), the second spring (33) is located between the connecting ring (311) and the second limiting ring (321), and a fire cover (35) is mounted on the second mounting seat (34), and the fire cover (35) is fixedly sleeved on the peripheral side of the mounting sleeve (32).

9. A temperature sensor with a detachable flame isolation device according to claim 8, characterized in that: A first inclined surface (341) is arranged on the peripheral side of the second mounting seat (34), and a second inclined surface (36) is arranged on the peripheral side of the second fireproof cover (3), wherein the inclination direction of the second inclined surface (36) is consistent with the inclination direction of the first inclined surface (341).

10. A temperature sensor with a detachable flame isolation device according to claim 8, characterized in that: The second mounting seat (34) is located above the connecting ring (311), and the bottom surface of the second mounting seat (34) limits the connecting ring (311).

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