Dry-burning-resistant temperature sensor and processing equipment thereof

Abstract

The invention discloses an anti-dry-burning temperature sensor and processing equipment thereof, and relates to the technical field of anti-dry-burning temperature sensors, the anti-dry-burning temperature sensor comprises a protective heat insulation cover, a temperature sensing cover plate is arranged at the lower end of the protective heat insulation cover, a thermosensitive element is arranged in the temperature sensing cover plate, and the upper end of the thermosensitive element is connected with a wire. A limiting end cover is arranged at the upper end of the protective heat insulation cover, and a guide rod capable of being adjusted in a telescopic mode is arranged on the inner side of the limiting end cover. The temperature sensing cover plate and the limiting end cover are both connected with the protective heat insulation cover through external threads in a threaded mode. The problems that an existing anti-dry-burning temperature sensor may be thermalized in the using process due to the poor heat-resisting effect of a shell, overheating protection is inconvenient, and the using effect of the anti-dry-burning temperature sensor is affected, and meanwhile in the process of spraying a heat-resisting material on the shell, paint is prone to splashing or dripping, and flattening and drying operation is difficult to conduct on the shell are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of anti-dry-burning temperature sensors, and particularly relates to an anti-dry-burning temperature sensor and its processing equipment. Background Art

[0002] An anti-dry-burning temperature sensor is a safety device used to prevent equipment from overheating in a state of no water or insufficient liquid. It is widely used in liquid heating equipment such as water heaters, electric kettles, coffee machines, boilers, etc. Its core function is to monitor the temperature of the heating area and automatically cut off the power supply when an abnormal high temperature is detected, preventing equipment damage or fire.

[0003] Compared with the existing processing equipment, there are still the following defects: for the existing anti-dry-burning temperature sensors, the heat resistance effect of the housing may be poor, and it will heat up during use, which is not convenient for overheat protection and affects the use effect of the anti-dry-burning temperature sensor. At the same time, during the spraying process of heat-resistant materials on the housing, it is easy to cause paint splashing or dripping, and it is difficult to carry out the operations of smoothing and drying. Summary of the Invention

[0004] The purpose of the present invention is to provide an anti-dry-burning temperature sensor and its processing equipment to solve the following technical problems: for the existing anti-dry-burning temperature sensors, the heat resistance effect of the housing may be poor, and it will heat up during use, which is not convenient for overheat protection and affects the use effect of the anti-dry-burning temperature sensor. At the same time, during the spraying process of heat-resistant materials on the housing, it is easy to cause paint splashing or dripping, and it is difficult to carry out the operations of smoothing and drying.

[0005] The purpose of the present invention can be achieved by the following technical solutions:

[0006] An anti-dry-burning temperature sensor includes: a protective heat-insulating cover, a temperature-sensing cover plate is arranged at the lower end of the protective heat-insulating cover, a thermosensitive element is arranged inside the temperature-sensing cover plate, a wire is connected to the upper end of the thermosensitive element, a limiting end cover is arranged at the upper end of the protective heat-insulating cover, and a telescopically adjustable guide rod is arranged inside the limiting end cover.

[0007] As a further scheme of the present invention: external threads are arranged on the inner end outer surfaces of the temperature-sensing cover plate and the limiting end cover, and both the temperature-sensing cover plate and the limiting end cover are connected to the protective heat-insulating cover by means of threads through the external threads;

[0008] The wire welded to the upper end of the thermosensitive element penetrates through the middle of the guide rod and extends upward, and a limiting spring that is snap-fitted with the temperature-sensing cover plate is arranged at the lower end of the guide rod for telescopic adjustment of the guide rod;

[0009] Multiple groups of structures are distributed inside the guide rod, and they are nested and slidably connected to each other.

[0010] As a further solution of the present invention: a protective frame is installed at the rear side inside the spraying box, an adjusting rod is arranged at the upper side inside the protective frame, and a first adjusting disc connected to the protective frame is arranged at the lower end of the adjusting rod;

[0011] A first electric telescopic rod is arranged at the front end of the first adjusting disc, a limiting clamping plate is arranged at the front end of the first electric telescopic rod, and a rubber seal for limiting and clamping the protective heat insulation cover is arranged on the front surface of the limiting clamping plate;

[0012] A second adjusting disc is arranged at the right end inside the spraying box.

[0013] As a further solution of the present invention: the adjusting rod and the first adjusting disc are connected in a meshing manner, and the first electric telescopic rod fixedly connected to the front end of the first adjusting disc forms a rotating structure on the protective frame through a built-in bearing;

[0014] The limiting clamping plate arranged at the front end of the first electric telescopic rod and the rubber seal are connected in an adhesive manner, and a second electric telescopic rod is arranged at the symmetrical position of the first electric telescopic rod with respect to the protective heat insulation cover.

[0015] As a further solution of the present invention: a second connecting ring member is connected to the left end of the second adjusting disc, a first connecting ring member is arranged on the left side of the second connecting ring member, and a docking fastener is arranged at the connection part of the first connecting ring member and the second connecting ring member;

[0016] Both the first connecting ring member and the second connecting ring member are threadedly connected to the docking fastener through adjusting bolts, so as to combine and connect the first connecting ring member and the second connecting ring member into a circular ring structure.

[0017] As a further solution of the present invention: limiting groove bodies are respectively arranged on the front and rear sides inside the first connecting ring member and the second connecting ring member, and limiting wheels fixedly connected to the support leg frames are arranged on the outer sides of the limiting groove bodies;

[0018] The limiting wheels respectively form a fitting sliding structure in the first connecting ring member and the second connecting ring member through the limiting groove bodies, so as to limit the movement of the first connecting ring member and the second connecting ring member.

[0019] As a further solution of the present invention: the support leg frames are arranged in a trisecting manner with respect to the center point of the circular ring formed by the combination of the first connecting ring member and the second connecting ring member, and the included angle between the support leg frames is 120°, so as to pull the first connecting ring member and the second connecting ring member outwards and center them.

[0020] As a further solution of the present invention: both the first connecting ring member and the second connecting ring member are connected to the second adjusting disk in a meshing manner, and the diameter of the second adjusting disk is smaller than the diameter of the circular ring structure formed by the combination of the first connecting ring member and the second connecting ring member, and is used for uniformly rotating the circular ring structure formed by the combination of the first connecting ring member and the second connecting ring member.

[0021] As a further solution of the present invention: a notched circular plate is provided at the inner end of the first connecting ring member for shielding the sprayed material;

[0022] Both the upper and lower sides of the left end of the notched circular plate are fixedly provided with auxiliary support frames connected to the first connecting ring member for supporting and fixing the notched circular plate.

[0023] As a further solution of the present invention: a third electric telescopic rod is provided at the inner end of the second connecting ring member, a support plate frame is installed at the inner end of the third electric telescopic rod, a storage tank is provided at the upper side of the inner end of the support plate frame, and nozzles for spraying the outer surface of the protective heat insulation cover are equidistantly distributed at the left end of the storage tank;

[0024] A scraper with an inner surface having the same curvature as the outer surface of the protective heat insulation cover is provided at the lower side of the left end of the support plate frame, and the horizontal distance of the scraper is greater than the horizontal distance of the nozzles.

[0025] The beneficial effects of the present invention:

[0026] 1. Through the threaded connection of the temperature-sensing cover plate and the limit end cover with the protective heat insulation cover, the overall disassembly and installation of the protective heat insulation cover can be made stable, and in combination with the combined structure, dry-burning prevention and truncation can be carried out. Through spraying on the outer surface of the protective heat insulation cover, the overall heat resistance effect of the protective heat insulation cover is better, and thermalization is avoided;

[0027] 2. Through the combined structure of the support leg frame and the third electric telescopic rod for spraying on the outer surface of the protective heat insulation cover, the heat resistance effect can be increased. When the uniformly distributed nozzles are opened to spray the protective heat insulation cover, the overflowing paint can be shielded under the action of the notched circular plate to avoid splashing. Then, when the third electric telescopic rod is opened, the support plate frame can be telescoped and moved inward, and through the reverse rotation of the protective heat insulation cover, the sprayed paint can be evenly leveled by the scraper. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The present invention will be further described below with reference to the drawings.

[0029] Figure 1 is the overall structural schematic diagram of the connection between the guide rod and the limit end cover of the present invention;

[0030] Figure 2 is the front sectional structural schematic diagram of the connection between the protective heat insulation cover and the limit end cover of the present invention;

[0031] Figure 3 It is a front view sectional structure diagram of the spraying box of the present invention connected to the second adjusting disk;

[0032] Figure 4 It is an overall structure diagram of the connection between the first connecting ring part and the second connecting ring part of the present invention;

[0033] Figure 5 It is a side view sectional structure diagram of the spraying box of the present invention connected to the visual sealing door panel;

[0034] Figure 6 It is an overall structure diagram of the adjusting rod of the present invention connected to the first adjusting disk;

[0035] Figure 7 It is a top view sectional structure diagram of the spraying box of the present invention connected to the support leg frame;

[0036] Figure 8 It is an overall structure diagram of the material storage box of the present invention connected to the nozzle.

[0037] In the figure: 1. Spraying box; 101. Protection frame; 1011. First servo motor; 1012. Adjusting rod; 1013. First adjusting disk; 1014. First electric telescopic rod; 1015. Limit clamping plate; 1016. Rubber seal; 102. Fixed support frame; 103. Second servo motor; 104. Second adjusting disk; 105. Visual sealing door panel; 106. Quick-release connection buckle; 107. Second electric telescopic rod; 2. Protection and heat insulation cover; 201. Temperature sensing cover plate; 202. Thermal sensitive element; 203. Conducting wire; 204. Limit spring; 205. Guide rod; 206. Limit end cover; 2061. External thread; 3. Support leg frame; 301. Limit wheel; 3011. Limit groove body; 302. First connecting ring part; 303. Second connecting ring part; 304. Docking fastener; 305. Adjusting bolt; 306. Notched circular plate; 3061. Auxiliary support frame; 4. Third electric telescopic rod; 401. Support plate frame; 402. Material storage box; 403. Nozzle; 404. Scraper. Detailed implementation manners

[0038] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0039] Please refer to Figure 1-8 As shown, the present invention is a dry-burning prevention temperature sensor and its processing equipment.

[0040] Embodiment 1

[0041] Please refer to Figure 1 and Figure 2 In [references], the present invention provides a technical solution: a protective heat shield 2, a temperature-sensitive cover plate 201 is provided at the lower end of the protective heat shield 2, a thermosensitive element 202 is provided inside the temperature-sensitive cover plate 201, a wire 203 is connected to the upper end of the thermosensitive element 202, a limit end cover 206 is provided at the upper end of the protective heat shield 2, and a telescopically adjustable guide rod 205 is provided inside the limit end cover 206.

[0042] Furthermore, external threads 2061 are provided on the inner end outer surfaces of both the temperature-sensitive cover plate 201 and the limit end cover 206, and both the temperature-sensitive cover plate 201 and the limit end cover 206 are connected to the protective heat shield 2 by means of threads through the external threads 2061;

[0043] The wire 203 welded to the upper end of the thermosensitive element 202 passes through the middle of the guide rod 205 and extends upward. A limit spring 204 that is snap-fitted to the temperature-sensitive cover plate 201 is provided at the lower end of the guide rod 205 for telescopic adjustment of the guide rod 205;

[0044] Multiple sets of structures are distributed inside the guide rod 205, and they are nested and slidably connected to each other.

[0045] Specifically, the welding connection between the thermosensitive element 202 and the wire 203 has a conductive transmission effect. When a cooking pot is placed on the gas stove, the cooking utensil will press on the temperature-sensitive cover plate 201 of the temperature measuring head. Since multiple sets of structures are distributed inside the guide rod 205 and they are nested and slidably connected to each other, and the guide rod 205 forms an elastic telescopic structure inside the temperature-sensitive cover plate 201 through the limit spring 204, it can make the temperature-sensitive cover plate 201 closely adhere to the bottom of the pot under the action of elasticity. When the gas stove is burning, at this time, the temperature-sensitive cover plate 201 will directly sense the temperature at the bottom of the cooking utensil, and then the temperature is transmitted from the temperature-sensitive cover plate 201 to the thermosensitive element 202. When the pot is dry-burning, the temperature at the bottom of the pot will rise rapidly. When the temperature exceeds the specified limit, the high-temperature signal transmitted by the thermosensitive element 202 will be converted into an electrical signal and then transmitted to the gas stove top through the wire 203 to automatically cut off the gas supply, thereby stopping heating and preventing dry-burning.

[0046] Embodiment 2

[0047] Please refer to Figures 3-7 In [references], the present invention provides a technical solution: a protective frame 101 is installed at the rear side inside the spraying box 1, an adjusting rod 1012 is provided at the upper side inside the protective frame 101, and a first adjusting disk 1013 connected to the protective frame 101 is provided at the lower end of the adjusting rod 1012;

[0048] A first electric telescopic rod 1014 is provided at the front end of the first adjusting disc 1013. A limit clamping plate 1015 is provided at the front end of the first electric telescopic rod 1014. A rubber seal 1016 for limiting and clamping the protective heat insulation cover 2 is provided on the front surface of the limit clamping plate 1015;

[0049] A second adjusting disc 104 is provided at the right end inside the spraying box 1.

[0050] Furthermore, the adjusting rod 1012 is connected to the first adjusting disc 1013 in a meshing manner. The first electric telescopic rod 1014 fixedly connected to the front end of the first adjusting disc 1013 forms a rotating structure on the protective frame 101 through a built-in bearing;

[0051] The limit clamping plate 1015 provided at the front end of the first electric telescopic rod 1014 is connected to the rubber seal 1016 in an adhesive manner. A second electric telescopic rod 107 is provided at a symmetrical position of the first electric telescopic rod 1014 with respect to the protective heat insulation cover 2;

[0052] A second connecting ring member 303 is connected to the left end of the second adjusting disc 104. A first connecting ring member 302 is provided on the left side of the second connecting ring member 303. A docking fastener 304 is provided at the connection between the first connecting ring member 302 and the second connecting ring member 303;

[0053] Both the first connecting ring member 302 and the second connecting ring member 303 are threadedly connected to the docking fastener 304 through adjusting bolts 305, for combining and connecting the first connecting ring member 302 and the second connecting ring member 303 into a circular ring structure.

[0054] Furthermore, limiting groove bodies 3011 are provided on the front and rear sides inside both the first connecting ring member 302 and the second connecting ring member 303. Limiting wheels 301 fixedly connected to the support leg frame 3 are provided on the outer sides of the limiting groove bodies 3011;

[0055] The limiting wheels 301 respectively form a fitting sliding structure within the first connecting ring member 302 and the second connecting ring member 303 through the limiting groove bodies 3011, for limiting the movement of the first connecting ring member 302 and the second connecting ring member 303.

[0056] Furthermore, the support leg frame 3 is arranged in a trisecting manner with respect to the center point of the circular ring formed by the combination of the first connecting ring member 302 and the second connecting ring member 303, and the included angle between the support leg frames 3 is 120°, for pulling the first connecting ring member 302 and the second connecting ring member 303 outward and centering them.

[0057] Further, both the first connecting ring member 302 and the second connecting ring member 303 are connected to the second adjusting disk 104 in a meshing manner. The diameter of the second adjusting disk 104 is smaller than the diameter of the circular ring structure formed by the combination of the first connecting ring member 302 and the second connecting ring member 303, and is used to rotate the combined circular ring structure of the first connecting ring member 302 and the second connecting ring member 303 at a uniform speed.

[0058] Specifically, in combination with Embodiment 1, first place the first connecting ring member 302 on the left side of the support leg frame 3. Then, after docking the second connecting ring member 303 with the first connecting ring member 302, pass the adjusting bolt 305 through the docking fastener 304 and then thread-connect it to the first connecting ring member 302 and the second connecting ring member 303 respectively, so that the first connecting ring member 302 and the second connecting ring member 303 are combined into an integrated circular ring structure. There are limit wheels 301 provided at the inner ends of the support leg frame 3, and the limit wheels 301 are respectively in a fitting sliding connection within the first connecting ring member 302 and the second connecting ring member 303 through the limit groove bodies 3011, which can limit the integrated circular ring structure of the first connecting ring member 302 and the second connecting ring member 303. In cooperation with the fact that the support leg frame 3 is trisected with respect to the center point of the integrated circular ring structure of the first connecting ring member 302 and the second connecting ring member 303, and the included angle between the support leg frames 3 with respect to each other is 120°, it can effectively pull the integrated circular ring structure outwards, preventing the first connecting ring member 302 and the second connecting ring member 303 from falling as a whole and affecting the subsequent operation state;

[0059] At this time, open the visual sealing door panel 105, and clamp the protective heat-insulating cover 2 to be processed inside the limit clamping plate 1015 through the rubber seal 1016. When closing the visual sealing door panel 105, use the quick-release connection buckle 106 for threaded fixation. At this time, respectively open the first electric telescopic rod 1014 and the second electric telescopic rod 107 to extend inwards to tightly clamp both ends of the protective heat-insulating cover 2. And the cross-sectional dimension of the limit clamping plate 1015 is the same as the cross-sectional dimension of the protective heat-insulating cover 2. This setting can prevent the paint from entering the inner tube wall of the protective heat-insulating cover 2. The adjusting rod 1012 and the first adjusting disk 1013 are connected in a meshing manner (a worm and worm gear structure). When the first servo motor 1011 installed at the left end of the protective frame 101 rotates the adjusting rod 1012, it can drive the first adjusting disk 1013 to rotate synchronously, so that the first electric telescopic rod 1014 rotates isocentrically inside the protective frame 101 through the built-in bearing, so as to drive the protective heat-insulating cover 2 to rotate centrically; among them, the model of the quick-release connection buckle 106 is Häfele H1001; the surface of the visual sealing door panel 105 is set as high-definition glass.

[0060] Embodiment 3

[0061] Please refer toFigure 3 , Figure 5 , Figure 7 and Figure 8 In Figure 7 and Figure 8 , the present invention provides a technical solution: a notched circular plate 306 is provided at the inner end of the first connecting ring member 302 for shielding the sprayed material;

[0062] Auxiliary support frames 3061 connected to the first connecting ring member 302 are fixedly provided on both the upper and lower sides of the left end of the notched circular plate 306 for supporting and fixing the notched circular plate 306.

[0063] Furthermore, a third electric telescopic rod 4 is provided at the inner end of the second connecting ring member 303. A support plate frame 401 is installed at the inner end of the third electric telescopic rod 4. A storage tank 402 is provided on the upper side of the inner end of the support plate frame 401. Spray nozzles 403 for spraying the outer surface of the protective heat insulation cover 2 are equidistantly distributed at the left end of the storage tank 402;

[0064] A scraping plate 404 with an inner surface having the same curvature as the outer surface of the protective heat insulation cover 2 is provided at the lower side of the left end of the support plate frame 401. The horizontal distance of the scraping plate 404 is greater than the horizontal distance of the spray nozzles 403.

[0065] Specifically, in combination with Embodiment 1 and Embodiment 2, when the second servo motor 103 installed at the rear end of the fixed support frame 102 is turned on to rotate the second adjusting disk 104, it can drive the integrated circular ring structure of the first connecting ring member 302 and the second connecting ring member 303 to rotate synchronously, so that the integrated circular ring structure of the first connecting ring member 302 and the second connecting ring member 303 can rotate in the limiting wheel 301 through the limiting groove body 3011, enabling accurate limiting rotation of the integrated circular ring structure. At this time, after the spray nozzles 403 are opened to spray the paint in the storage tank 402 onto the outer surface of the protective heat insulation cover 2, the third electric telescopic rod 4 is opened to move the support plate frame 401 inward and make the inner surface of the scraping plate 404 closely adhere to the outer surface of the protective heat insulation cover 2, so as to perform a uniform scraping and leveling operation after spraying the refractory and heat-resistant material. Here, the horizontal distance of the scraping plate 404 is greater than the horizontal distance of the spray nozzles 403, which can prevent the spray nozzles 403 from being too close to the outer surface of the protective heat insulation cover 2, resulting in paint splashing and wasting resources;

[0066] In addition, a notched circular plate 306 is fixedly installed at the inner end of the first connecting ring member 302 through the auxiliary support frame 3061. Before use, the inner wall of the notched circular plate 306 is sandblasted to increase the rough effect of the inner wall of the notched circular plate 306, which can avoid the possibility of material dripping or leakage during spraying of the refractory and heat-resistant material. The notched circular plate 306 is integrally in the shape of two-thirds of a circle, and both ends extend inward to form a state of a hollow cylinder cut edge, which can effectively collect the splashed paint;

[0067] During the spraying and troweling operations, rotate the integrated circular ring structure of the first connecting ring member 302 and the second connecting ring member 303 to the left, and rotate the overall protective heat insulation cover 2 to the right under the action of the first adjusting disc 1013. Under their interaction, effective spraying of the refractory and heat-resistant material can be carried out, and a smooth troweling operation can be performed to make the material more uniform.

[0068] The above has described in detail an embodiment of the present invention, but the content described is only the preferred embodiment of the present invention and cannot be considered as limiting the scope of implementation of the present invention. All equivalent changes and improvements made according to the scope of the application of the present invention should still fall within the scope covered by the patent of the present invention.

Claims

1. A dry-burning prevention temperature sensor, characterized in that: The invention comprises a protective heat insulation cover (2), wherein a temperature sensing cover plate (201) is arranged at the lower end of the protective heat insulation cover (2), a thermosensitive element (202) is arranged inside the temperature sensing cover plate (201), a wire (203) is connected to the upper end of the thermosensitive element (202), a limit end cover (206) is arranged at the upper end of the protective heat insulation cover (2), and a retractable and adjustable guide rod (205) is arranged on the inner side of the limit end cover (206).

2. The anti-dry-burning temperature sensor according to claim 1, characterized in that: The inner end outer surfaces of the temperature sensing cover plate (201) and the position limiting end cover (206) are both provided with external threads (2061), and the temperature sensing cover plate (201) and the position limiting end cover (206) are both connected to the protective heat insulation cover (2) in a threaded manner via the external threads (2061); The wire (203) welded to the upper end of the thermosensitive element (202) passes through the middle of the guide rod (205) and extends upwards, and the lower end of the guide rod (205) is provided with a limit spring (204) engaged with the temperature sensing cover plate (201) for adjusting the extension and contraction of the guide rod (205); A plurality of groups of structures are distributed on the inner side of the guide rod (205), and are connected to each other in a nested sliding manner.

3. A processing equipment for an anti-dry-burning temperature sensor, characterized in that: A protective frame (101) is installed on the inner rear side of the spray box (1), an adjustment rod (1012) is arranged on the inner upper side of the protective frame (101), and a first adjustment disk (1013) connected to the protective frame (101) is arranged at the lower end of the adjustment rod (1012); A first electric telescopic rod (1014) is provided at the front end of the first adjusting disk (1013); a limiting clamp (1015) is provided at the front end of the first electric telescopic rod (1014); and a rubber seal (1016) for limiting and engaging the protective heat insulation cover (2) is provided on the front end surface of the limiting clamp (1015); A second adjustment disk (104) is arranged at the right inner end of the spray box (1).

4. The processing equipment of the anti-dry-burning temperature sensor according to claim 3 is characterized in that: The adjusting rod (1012) and the first adjusting disk (1013) are connected in a meshing manner, and the first electric telescopic rod (1014) fixedly connected to the front end of the first adjusting disk (1013) forms a rotating structure on the protective frame (101) through a built-in bearing; A limit clamp (1015) provided at the front end of the first electric telescopic rod (1014) is connected to the rubber seal (1016) by bonding, and a second electric telescopic rod (107) is provided at a symmetrical position of the first electric telescopic rod (1014) with respect to the protective heat insulation cover (2).

5. The processing equipment of the anti-dry-burning temperature sensor according to claim 3 is characterized in that: The left end of the second adjustment disk (104) is connected to a second connecting ring (303), the left side of the second connecting ring (303) is provided with a first connecting ring (302), and the connection between the first connecting ring (302) and the second connecting ring (303) is provided with a butt fastener (304); The first connecting ring (302) and the second connecting ring (303) are both threadedly connected to the butt fastener (304) via an adjusting bolt (305), so as to combine and connect the first connecting ring (302) and the second connecting ring (303) into a circular ring structure.

6. The processing equipment of the anti-dry-burning temperature sensor according to claim 5, characterized in that: The first connecting ring (302) and the second connecting ring (303) are provided with limiting grooves (3011) on both the front and rear sides thereof, and the outer sides of the limiting grooves (3011) are provided with limiting wheels (301) fixedly connected to the supporting leg frame (3); The limiting wheel (301) forms a fitting sliding structure in the first connecting ring (302) and the second connecting ring (303) respectively through the limiting groove body (3011), which is used to limit the movement of the first connecting ring (302) and the second connecting ring (303).

7. The processing equipment of the anti-dry-burning temperature sensor according to claim 6, characterized in that: The support leg frames (3) are arranged to be divided into three equal parts with respect to the center point of the circular ring formed by the combination of the first connecting ring member (302) and the second connecting ring member (303), and the angle between the support leg frames (3) is 120°, so as to be used for pulling the first connecting ring member (302) and the second connecting ring member (303) outwards and positioning them in the center.

8. The processing equipment of the anti-dry-burning temperature sensor according to claim 5, characterized in that: The first connecting ring (302) and the second connecting ring (303) are both connected to the second adjusting disk (104) in a meshing manner; the diameter of the second adjusting disk (104) is smaller than the diameter of the circular ring structure formed by the combination of the first connecting ring (302) and the second connecting ring (303), and is used to rotate the combined circular ring structure of the first connecting ring (302) and the second connecting ring (303) at a uniform speed.

9. The processing equipment of the anti-dry-burning temperature sensor according to claim 5, characterized in that: A notched circular plate (306) is provided at the inner end of the first connecting ring (302) for shielding the sprayed material; Auxiliary support frames (3061) connected to the first connecting ring (302) are fixedly provided on both the upper and lower sides of the left end of the notched circular plate (306) for supporting and fixing the notched circular plate (306).

10. The processing equipment of the anti-dry-burning temperature sensor according to claim 5, characterized in that: A third electric telescopic rod (4) is arranged at the inner end of the second connecting ring (303), a support plate frame (401) is installed at the inner end of the third electric telescopic rod (4), a material storage box (402) is arranged on the upper side of the inner end of the support plate frame (401), and nozzles (403) for spraying the outer surface of the protective heat insulation cover (2) are equidistantly arranged at the left end of the material storage box (402); A scraper (404) having an inner surface with the same curvature as the outer surface of the protective heat shield (2) is arranged at the lower left end of the support plate frame (401), and the lateral distance of the scraper (404) is greater than the lateral distance of the nozzle (403).

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