Protective structure capable of preventing dry burning

By designing an adjustable protective structure and multi-layer insulation wall, the problem of fixed installation height of the anti-dry burning probe is solved, and flexible adaptation to different pot heights and accurate temperature detection are achieved, which extends the service life and improves the safety and versatility of the gas stove.

CN223388613UActive Publication Date: 2025-09-26CHENGDU XINHONG TECH CO LTD
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Patent Information

Application Number
CN202422869856.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-25
Publication Date
2025-09-26
Estimated Expiration
2034-11-25

AI Technical Summary

Technical Problem

The anti-dry burning probe of the existing gas furnace is installed at a fixed height, resulting in poor versatility in use requirements, and heat penetration leads to misjudgment, affecting normal use.

Method used

An adjustable protective structure is designed, including a protective top cover and a multi-layer insulation wall, which can adjust the installation height of the anti-dry burning probe. The multi-layer insulation wall blocks heat conduction to prevent excessive temperature and ensure the accuracy of the probe.

Benefits of technology

The anti-dry-boiling probe can flexibly adapt to different pot heights, extend its service life, avoid temperature misjudgment, and improve its versatility and safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a protection structure capable of preventing dry burning, and relates to the technical field of gas stoves, the protection structure comprises a fire cover and a dry burning prevention probe arranged above the fire cover, the top of the fire cover is provided with a plurality of supports, a protection top cover used for protecting the dry burning prevention probe is arranged above the supports, and the protection top cover is arranged above the supports. The anti-dry-burning probe is installed in the protective top cover, and through holes for the anti-dry-burning probe to penetrate through are formed in the middle of the protective top cover and the middle of the fire cover. According to the anti-dry-burning probe, the damage of external factors to the anti-dry-burning probe can be effectively prevented through the protection top cover, the service life of the anti-dry-burning probe is prolonged, the height of the anti-dry-burning probe is convenient to adjust due to the fact that the outer-layer heat insulation wall is detachably connected with the sliding sleeve, the anti-dry-burning probe is convenient to adapt to gas furnace equipment with different heights, the use requirement universality is good, and in addition, the anti-dry-burning probe is convenient to use. According to the structure, the gap is formed between the protection top cover and the fire cover, air convection is facilitated, and the heat dissipation effect is achieved conveniently.
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Description

Technical Field

[0001] The utility model relates to the technical field of gas stoves, in particular to a protective structure capable of preventing dry burning. Background Art

[0002] At present, gas stoves are used more and more widely in people's daily lives. Since gas stoves mainly use various gases to burn to obtain heat, improper use will cause serious safety accidents. Therefore, the safety protection function of gas stoves is increasingly valued by people, especially the anti-dry burn function of gas stoves. An anti-dry burn probe is often used to automatically cut off the gas path when the pot is dry-burned or abnormally heated. For example, the anti-dry burn protection device and gas stove described in patent publication number CN213656744U, however, the installation height of the anti-dry burn probe in the above scheme is fixed and cannot be adjusted. The distance between different pots and the anti-dry burn probe is different, resulting in poor versatility in usage requirements. In addition, when the anti-dry burn probe is in use, the heat generated by the gas stove will penetrate too much into the anti-dry burn probe, causing the anti-dry burn probe to misjudge the temperature of the bottom of the pot, thereby affecting the normal use of the gas stove.

[0003] Based on this, a protective structure that can prevent dry burning is now provided to eliminate the disadvantages of the existing technical solutions. Utility Model Content

[0004] The purpose of the present invention is to provide a dry-burn prevention protection structure to solve the problems in the background art that the installation height of the dry-burn prevention probe cannot be adjusted and excessive heat penetrates into the dry-burn prevention probe.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A protective structure that can prevent dry burning includes a fire cover and an anti-dry burning probe arranged above the fire cover. Several brackets are provided on the top of the fire cover. A protective top cover for protecting the anti-dry burning probe is provided above the bracket. The anti-dry burning probe is installed inside the protective top cover. The middle of the protective top cover and the fire cover are both provided with through holes for the anti-dry burning probe to pass through.

[0007] Preferably, the fire cover includes a top wall and side walls, the top wall and the side walls enclose a gas channel, and a plurality of fire holes are provided on the surface of the side wall.

[0008] Preferably, the anti-dry burning probe includes a temperature sensing probe, a thermal insulation sleeve and a support rod, the thermal insulation sleeve is arranged on the outside of the temperature sensing probe, the support rod is fixedly installed at the lower end of the temperature sensing probe, and an electrical connecting wire is arranged inside the support rod.

[0009] Preferably, the protective top cover includes a base and a sliding sleeve, the base and the fire cover are spaced apart and supported and fixed by the bracket, the base is detachably connected to the bracket by a plurality of bolts, the base and the sliding sleeve are an integrated structure, an outer insulation wall is slidably connected to the inside of the sliding sleeve, an inner insulation wall is arranged inside the outer insulation wall, and the outer insulation wall and the inner insulation wall are an integrated structure.

[0010] Preferably, a plurality of guide bars are fixedly mounted on the inner wall of the sliding sleeve, and a guide groove cooperating with the guide bars is provided on the surface of the outer heat-insulating wall.

[0011] Preferably, a plurality of heat diversion holes are provided on the surfaces of the outer insulation wall and the inner insulation wall.

[0012] Preferably, the surface of the outer heat-insulating wall is provided with scale lines and a plurality of screw holes, and the outer heat-insulating wall is detachably connected to the sliding sleeve via a plurality of bolts.

[0013] Preferably, the protective top cover also includes a mounting seat fixedly mounted inside the inner insulation wall, a spherical chamber is provided inside the mounting seat, a rotating head is movably provided inside the spherical chamber, the rotating head is connected to the support rod, a ring is fixedly mounted on the outer surface of the support rod, and a number of elastic parts are connected between the ring and the inner insulation wall.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0015] The utility model can effectively prevent external factors from damaging the anti-dry-burning probe through the protective top cover, thereby extending the service life of the anti-dry-burning probe. Moreover, since the outer insulation wall and the sliding sleeve are detachably connected, the height of the anti-dry-burning probe can be adjusted conveniently, which is convenient for adapting to gas stove equipment of different heights and has good versatility in use requirements. The protective top cover is provided with two layers of insulation walls, which effectively prevent excessive heat from being conducted to the anti-dry-burning probe during combustion, thereby avoiding excessive temperature of the anti-dry-burning probe, ensuring the accuracy of the anti-dry-burning probe in judging the temperature of the bottom of the pot, and increasing the protective effect. In addition, the structure is provided with a gap between the protective top cover and the fire cover, which is convenient for air convection and facilitates the heat dissipation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a structural diagram of Example 1.

[0017] Figure 2 This is a front view of Example 1.

[0018] Figure 3 This is a schematic diagram of the internal structure of Example 1.

[0019] Figure 4 This is a schematic structural diagram of the guide bar of Example 1.

[0020] Figure 5 This is a schematic structural diagram of the guide groove of Example 1.

[0021] Figure 6 This is a structural diagram of Example 2.

[0022] Figure 7 This is a schematic diagram of the internal structure of Example 2.

[0023] Notes on the accompanying drawings: fire cover 10, top wall 11, side wall 12, fire hole 13, anti-dry burning probe 20, temperature sensor 21, thermal insulation sleeve 22, support rod 23, bracket 30, protective top cover 40, base 41, sliding sleeve 42, outer thermal insulation wall 43, inner thermal insulation wall 44, guide bar 45, guide groove 46, heat diversion hole 47, mounting seat 48, rotating head 49, collar 410, elastic part 411. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention is further described in detail below with reference to the accompanying drawings and embodiments.

[0025] Example 1

[0026] In this embodiment, if Figure 1-Figure 5 As shown, the protection structure for preventing dry burning includes a fire cover 10 and an anti-dry burning probe 20 arranged above the fire cover 10. The anti-dry burning probe 20 is used to continuously detect the temperature of the bottom of the pot. The anti-dry burning probe 20 is electrically connected to the controller and the gas pipe solenoid valve in the gas stove equipment. When the temperature of the pot bottom is higher than the set safety temperature, the controller closes the gas supply of the gas pipe through the solenoid valve, thereby stopping the gas combustion, preventing the pot from continuing to dry burn after it is dry, and avoiding danger. A plurality of brackets 30 are provided on the top of the fire cover 10, and a bracket 30 is provided above the bracket 30 for protecting the anti-dry burning. The protective top cover 40 of the dry-burning probe 20 has a height higher than that of the fire cover 10, and can cover the anti-dry-burning probe 20 exposed on the outside to avoid damage to the anti-dry-burning probe 20. The anti-dry-burning probe 20 is installed inside the protective top cover 40. The middle part of the protective top cover 40 and the fire cover 10 are both provided with through holes for the anti-dry-burning probe 20 to pass through, which facilitates the electrical connection operation between the anti-dry-burning probe 20 and the controller and gas pipe solenoid valve in the gas furnace equipment, so that the electrical connection line can be connected to other components through the through hole.

[0027] Among them Figure 2 and Figure 4 As shown, the fire cover 10 includes a top wall 11 and a side wall 12. The top wall 11 and the side wall 12 enclose a gas channel. A plurality of fire holes 13 are provided on the surface of the side wall 12 to facilitate the ejection of the gas flame.

[0028] Among them Figure 2 and Figure 3 As shown, the anti-dry burning probe 20 includes a temperature sensing probe 21, an insulation sleeve 22 and a support rod 23. The insulation sleeve 22 is arranged on the outside of the temperature sensing probe 21 to reduce the influence of the flame temperature on the temperature measurement of the temperature sensing probe 21. The support rod 23 is fixedly installed at the lower end of the temperature sensing probe 21. An electrical connection line is arranged inside the support rod 23. The temperature sensing probe 21 is used to detect the temperature. One end of the electrical connection line passes through the through hole and is connected to the gas furnace equipment to facilitate signal transmission.

[0029] Among them Figure 2-Figure 5 As shown, the protective top cover 40 includes a base 41 and a sliding sleeve 42. The base 41 is spaced apart from the fire cover 10 and supported and fixed by the bracket 30, so that there is a certain gap between the fire cover 10 and the base 41, which increases the air convection range, facilitates to accelerate the cooling effect of the anti-dry burning probe 20, and can improve the sensitivity of the anti-dry burning probe 20. The base 41 is detachably connected to the bracket 30 by a number of bolts, which is convenient for disassembly and maintenance. The base 41 and the sliding sleeve 42 are an integrated structure. The inner part of the sliding sleeve 42 is slidably connected to the outer insulation wall 43, and the inner part of the outer insulation wall 43 is provided with an inner insulation wall 44. The outer insulation wall 43 and the inner insulation wall 44 are an integrated structure. The two layers of insulation walls can effectively block excessive heat during combustion from being transferred to the anti-dry burning probe 20, thereby preventing the anti-dry burning probe 20 from being misjudged due to excessive temperature.

[0030] Among them Figure 2-Figure 4 As shown, a number of guide bars 45 are fixedly installed on the inner wall of the sliding sleeve 42, and a guide groove 46 that cooperates with the guide bars 45 is provided on the surface of the outer insulation wall 43. The guide bars 45 play a guiding role and limit the outer insulation wall 43 to avoid the anti-dry burning probe 20 from rotating during use.

[0031] Among them Figure 2 and Figure 3 As shown, a plurality of heat diversion holes 47 are provided on the surface of the outer insulation wall 43 and the inner insulation wall 44. The inner diameter of the heat diversion holes 47 on the surface of the outer insulation wall 43 is smaller than the inner diameter of the heat diversion holes 47 on the surface of the inner insulation wall 44, so as to facilitate rapid heat dissipation and achieve maximum diversion effect.

[0032] Among them Figure 2 and Figure 3 As shown, the surface of the outer insulation wall 43 is provided with scale lines and a plurality of screw holes. The outer insulation wall 43 is detachably connected to the sliding sleeve 42 by a plurality of bolts, so that the relative distance between the outer insulation wall 43 and the sliding sleeve 42 can be adjusted, and the distance between the anti-dry burning probe 20 and the bottom of the pot can be adjusted. The structure is relatively flexible, so that the anti-dry burning probe 20 is suitable for different gas stove equipment.

[0033] Example 2

[0034] The difference from Example 1 is that Figure 6 and Figure 7 As shown, the cookware will deviate during use, so that the top of the temperature sensing probe 21 is not always in direct contact with the bottom of the cookware, which can easily cause the temperature sensing probe 21 to deform. The protective top cover 40 also includes a mounting seat 48 fixedly installed inside the inner insulation wall 44. A spherical chamber is provided inside the mounting seat 48 to facilitate driving the rotating head 49 to swing, so as to prevent the temperature sensing probe 21 from swinging when the cookware deviates, thereby preventing the temperature sensing probe 21 from directly colliding with the bottom of the cookware. A rotating head 49 is movably provided inside the spherical chamber, and the rotating head 49 is connected to the support rod 23. A ring 410 is fixedly installed on the outer surface of the support rod 23, and a number of elastic members 411 are connected between the ring 410 and the inner insulation wall 44. The elastic member 411 is a spring member, which limits the swing amplitude of the support rod 23, so that the support rod 23 has the ability to automatically return to its original position.

[0035] During use, the base 41 is first fixed to the upper end of the bracket 30 by a number of bolts, and then the appropriate probe height is selected according to the size specifications of the cookware. Due to the limiting effect of the guide bar 45 and the guide groove 46, the outer insulation wall 43 and the inner insulation wall 44 can move smoothly along the direction of the guide bar 45. When reaching the corresponding position, the position of the outer insulation wall 43 is fixed by a number of bolts. Since the anti-dry burning probe 20 is arranged inside the inner insulation wall 44, the height of the anti-dry burning probe 20 can be adjusted by changing the position of the inner insulation wall 44, which is convenient for adapting to gas stove equipment of different heights. It has a simple structure and good practicality.

[0036] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.

Claims

1. A dry-burning protection structure, comprising a fire cover (10) and a dry-burning protection probe (20) arranged above the fire cover (10), characterized in that: A plurality of brackets (30) are provided on the top of the fire cover (10), a protective top cover (40) for protecting the anti-dry burning probe (20) is provided above the bracket (30), the anti-dry burning probe (20) is installed inside the protective top cover (40), and a through hole for the anti-dry burning probe (20) to pass through is provided in the middle of the protective top cover (40) and the fire cover (10).

2. The dry burning protection structure according to claim 1, characterized in that: The fire cover (10) comprises a top wall (11) and a side wall (12), wherein the top wall (11) and the side wall (12) enclose a gas channel, and a plurality of fire holes (13) are provided on the surface of the side wall (12).

3. The dry burning protection structure according to claim 1, characterized in that: The anti-dry burning probe (20) comprises a temperature sensing probe (21), a heat insulating sleeve (22) and a support rod (23), wherein the heat insulating sleeve (22) is arranged on the outside of the temperature sensing probe (21), the support rod (23) is fixedly mounted on the lower end of the temperature sensing probe (21), and an electrical connection line is arranged inside the support rod (23).

4. The dry burning protection structure according to claim 3, characterized in that: The protective top cover (40) includes a base (41) and a sliding sleeve (42). The base (41) and the fire cover (10) are spaced apart and supported and fixed by the bracket (30). The base (41) is detachably connected to the bracket (30) by a plurality of bolts. The base (41) and the sliding sleeve (42) are an integrated structure. The sliding sleeve (42) is internally slidably connected to an outer heat insulation wall (43). An inner heat insulation wall (44) is provided inside the outer heat insulation wall (43). The outer heat insulation wall (43) and the inner heat insulation wall (44) are an integrated structure.

5. The dry burning protection structure according to claim 4, characterized in that: A plurality of guide strips (45) are fixedly mounted on the inner wall of the sliding sleeve (42), and a guide groove (46) matching with the guide strips (45) is provided on the surface of the outer heat-insulating wall (43).

6. The dry burning protection structure according to claim 4, characterized in that: A plurality of heat diversion holes (47) are provided on the surfaces of the outer heat insulation wall (43) and the inner heat insulation wall (44).

7. The dry burning protection structure according to claim 4, characterized in that: The surface of the outer heat-insulating wall (43) is provided with scale lines and a plurality of screw holes, and the outer heat-insulating wall (43) is detachably connected to the sliding sleeve (42) via a plurality of bolts.

8. The dry burning protection structure according to claim 4, characterized in that: The protective top cover (40) further comprises a mounting seat (48) fixedly mounted inside the inner heat-insulating wall (44); a spherical chamber is provided inside the mounting seat (48); a rotating head (49) is movably provided inside the spherical chamber; the rotating head (49) is connected to the support rod (23); a collar (410) is fixedly mounted on the outer surface of the support rod (23); and a plurality of elastic members (411) are connected between the collar (410) and the inner heat-insulating wall (44).

Citation Information

Patent Citations

  • Dry burning prevention protection device and gas cooker

    CN213656744U