CN211316261U - Gas-cooker prevents dry combustion method device with automatic flexible function - Google Patents
Gas-cooker prevents dry combustion method device with automatic flexible function Download PDFInfo
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- CN211316261U CN211316261U CN201922228955.3U CN201922228955U CN211316261U CN 211316261 U CN211316261 U CN 211316261U CN 201922228955 U CN201922228955 U CN 201922228955U CN 211316261 U CN211316261 U CN 211316261U
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Abstract
The utility model discloses a gas-cooker prevents dry combustion method device with automatic flexible function, including fixed axle, support tube, the support tube housing is in outside the fixed axle, the top of support tube is equipped with the thermal-arrest board, the support intraductal temperature sensing unit that is equipped with, the temperature sensing unit is hugged closely the thermal-arrest board, be equipped with nickel titanium memory alloy spring between support tube and the fixed axle, nickel titanium memory alloy spring's one end and fixed axle butt, one end and support tube butt in addition. The utility model discloses break the limitation of present gas-cooker dry burning prevention function for the gas-cooker product also can keep beautiful outward appearance characteristics in the function abundance, its ordinary stainless steel spring with among the prior art dry burning prevention probe changes to "nickel titanium memory alloy spring" that has two-way memory effect, utilizes this spring to have the characteristics of thermal expansion form and cooling shrinkage form, realizes the automatic flexible purpose of probe high temperature and normal atmospheric temperature.
Description
Technical Field
The utility model relates to a gas-cooker, especially gas-cooker prevent dry combustion method device.
Background
The household gas stove in the prior art is provided with a flameout preventing device, namely a device which automatically cuts off a gas path when a burner is flamed out due to pot overflow or strong wind and prevents gas poisoning and gas explosion caused by gas leakage; in practical application, when water in a pot is burnt out, a dry burning condition that the pot is burnt and is not handled by people occurs, and the dry burning can burn a cooker and further cause fire, therefore, the prior art has provided a gas stove protection device with an anti-dry burning effect, which mainly comprises a probe, wherein the probe is exposed outside a burner, has certain elasticity and can freely stretch out and draw back. The probe is contacted with the bottom of the cooker to sense the bottom temperature in the using process of the gas stove, and a high-temperature protection function is triggered, so that the dry burning prevention effect is achieved. However, the probes of the conventional dry-burning prevention protection device for the gas stove are exposed outside the burner, so that the appearance of the original gas stove product is damaged, and the probes are easily damaged due to external force collision in use and maintenance, thereby causing the risk of failure of the dry-burning prevention function.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: provides a gas stove dry burning prevention device which overcomes the defects.
The utility model provides a solution of its technical problem is: the utility model provides a gas-cooker prevents dry combustion method device with automatic flexible function, includes fixed axle, support tube, the support tube cover is in outside the fixed axle, the top of support tube is equipped with the heat-collecting plate, the intraductal temperature sensing unit that is equipped with of support, the temperature sensing unit hug closely the heat-collecting plate, be equipped with nickel titanium memory alloy spring between support tube and the fixed axle, nickel titanium memory alloy spring's one end and fixed axle butt, other one end and support tube butt.
The utility model has the advantages that: the utility model discloses break the limitation of present gas-cooker dry burning prevention function for the gas-cooker product also can keep beautiful outward appearance characteristics in the function abundance, its ordinary stainless steel spring with among the prior art dry burning prevention probe changes to "nickel titanium memory alloy spring" that has two-way memory effect, utilizes this spring to have the characteristics of thermal expansion form and cooling shrinkage form, realizes the automatic flexible purpose of probe high temperature and normal atmospheric temperature.
As a further improvement of the above technical solution, the support tube includes a mounting section and a guiding section, the mounting section is located above the guiding section, an outer diameter of the mounting section is greater than an outer diameter of the guiding section, the guiding section is sleeved outside the fixed shaft, and the fixed shaft is slidably connected with the guiding section. Through utilizing the direction section for the support pipe is more stable when going up and down, can not appear disproportionately.
As a further improvement of the technical scheme, the installation structure further comprises a protective cover, and the protective cover is fixed outside the installation section. Through increasing the safety cover, can effectively protect the support pipe, avoid high temperature direct transmission to the support pipe.
As a further improvement of the technical scheme, the fixing shaft is a hollow shaft, a lead is arranged in the fixing shaft, and the lead is electrically connected with the temperature sensing unit.
As a further improvement of the above technical solution, an encapsulation resin is filled between the fixing shaft and the lead.
As a further improvement of the above technical solution, the upper end of the wire is electrically connected to the temperature sensing unit, and the lower end of the wire is electrically connected to the connector. The connector is utilized, and the installation of the dry burning prevention device is convenient.
As a further improvement of the technical scheme, the nickel-titanium memory alloy spring is fixedly connected with the fixed shaft through a copper ring. By adding the copper ring, the nickel-titanium memory alloy spring is heated more uniformly.
Drawings
In order to more clearly illustrate the technical solution in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below. It is clear that the described figures represent only some embodiments of the invention, not all embodiments, and that a person skilled in the art can also derive other designs and figures from these figures without inventive effort.
Fig. 1 is a front view of the present invention;
fig. 2 is a cross-sectional view of the present invention;
fig. 3 is an installation schematic diagram of the present invention.
Detailed Description
The conception, the specific structure, and the technical effects produced by the present invention will be clearly and completely described below in conjunction with the embodiments and the accompanying drawings to fully understand the objects, the features, and the effects of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and other embodiments obtained by those skilled in the art without inventive labor based on the embodiments of the present invention all belong to the protection scope of the present invention. The preferred embodiment of the present invention is shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection scope of the present invention.
In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution. Meanwhile, all technical characteristics in the invention can be interactively combined on the premise of not conflicting with each other.
Referring to fig. 1 to 2, the gas stove dry burning prevention device with the automatic telescopic function comprises a fixing shaft 100 and a support tube 200, wherein the support tube 200 is sleeved outside the fixing shaft 100, a heat collecting plate 300 is arranged at the top of the support tube 200, a temperature sensing unit 400 is arranged in the support tube 200, the temperature sensing unit 400 is tightly attached to the heat collecting plate 300, a nickel-titanium memory alloy spring 500 is arranged between the support tube 200 and the fixing shaft 100, one end of the nickel-titanium memory alloy spring 500 is abutted to the fixing shaft 100, and the other end of the nickel-titanium memory alloy spring 500 is abutted to the support tube 500.
In operation, referring to fig. 3, the dry combustion preventing device is installed in a gas range 10, wherein a fixed shaft 100 is fixed in a burner of the gas range as an installation base. When the gas stove stops running, the whole anti-dry burning device is in a normal temperature state, the nickel-titanium memory alloy spring 500 in the anti-dry burning device is in a contraction state, and the support tube 200 of the anti-dry burning device is contracted inside the combustion of the gas stove 10 under the action of spring tension and self gravity; when the gas stove is operated, the anti-dry heating device is gradually heated and the temperature rises, the nickel-titanium memory alloy spring 500 in the anti-dry heating device starts to extend at 45 ℃ until the temperature reaches a fully extended state when the temperature rises to 65 ℃, the support tube 200 is gradually pushed upwards by the pushing force of the spring in the extending process, the support tube 200, the heat collection plate 300 and the temperature sensing unit 400 all move upwards at the moment until the upper surface of the heat collection plate 300 props against a cooker, the heat collection plate 300 and the temperature sensing unit 400 (such as an NTC thermistor) start to collect temperature signals of the bottom of the cooker, and the control program gives feedback after receiving the temperature signals to control the gas valve to be switched on and off, so that the anti-dry heating function is realized; when the gas stove stops running and the temperature of the dry burning prevention device is gradually reduced, the nickel-titanium memory alloy spring 500 in the dry burning prevention device begins to contract when the temperature is reduced to 45 ℃ until the temperature is increased to below 25 ℃ and reaches a complete contraction state, and at the moment, the support tube 200 of the dry burning prevention device contracts in the combustion chamber under the action of the spring tension.
Further as a preferred embodiment, the support tube 200 includes a mounting section 210 and a guiding section 220, the mounting section 210 is located above the guiding section 220, an outer diameter of the mounting section 210 is greater than an outer diameter of the guiding section 220, the guiding section 220 is sleeved outside the fixing shaft 100, and the fixing shaft 100 is slidably connected to the guiding section 220. The temperature sensing unit 400 and the nitinol spring 500 are both mounted in the mounting section 210.
Further, as a preferred embodiment, the installation structure further comprises a protection cover 600, and the protection cover 600 is fixed outside the installation section 210.
In a further preferred embodiment, the fixing shaft 100 is a hollow shaft, and a lead wire is disposed in the fixing shaft 100 and electrically connected to the temperature sensing unit 400.
Further, in a preferred embodiment, a sealing resin 700 is filled between the fixing shaft 100 and the lead. By using the packaging resin, dust is prevented from falling into the fixed shaft in the using process, so that electronic elements in the gas stove are prevented from being influenced.
In a further preferred embodiment, the upper end of the lead is electrically connected to the temperature sensing unit 400, and the lower end of the lead is electrically connected to the connector.
In a further preferred embodiment, the nitinol spring 500 is fixedly connected to the fixing shaft 100 by a copper ring 800.
While the preferred embodiments of the present invention have been described in detail, it will be understood by those skilled in the art that the invention is not limited to the details of the embodiments shown, but is capable of various modifications and substitutions without departing from the spirit of the invention.
Claims (7)
1. The utility model provides a gas-cooker prevents dry combustion method device with automatic flexible function which characterized in that: the solar heat collector comprises a fixing shaft and a support tube, wherein the support tube is sleeved outside the fixing shaft, a heat collecting plate is arranged at the top of the support tube, a temperature sensing unit is arranged in the support tube and clings to the heat collecting plate, a nickel-titanium memory alloy spring is arranged between the support tube and the fixing shaft, one end of the nickel-titanium memory alloy spring is abutted to the fixing shaft, and the other end of the nickel-titanium memory alloy spring is abutted to the support tube.
2. The dry combustion preventing device for a gas range with an automatic telescopic function as claimed in claim 1, wherein: the support tube comprises an installation section and a guide section, the installation section is located above the guide section, the outer diameter of the installation section is larger than that of the guide section, the guide section is sleeved outside the fixed shaft, and the fixed shaft is connected with the guide section in a sliding mode.
3. The dry combustion preventing device for a gas range with an automatic telescopic function as claimed in claim 2, wherein: still include the safety cover, the safety cover is fixed outside the installation section.
4. The dry combustion preventing device for a gas range with an automatic telescopic function as claimed in claim 1, wherein: the fixing shaft is a hollow shaft, a lead is arranged in the fixing shaft, and the lead is electrically connected with the temperature sensing unit.
5. The dry combustion preventing device for a gas range with an automatic telescopic function as claimed in claim 4, wherein: and packaging resin is filled between the fixed shaft and the lead.
6. The dry combustion preventing device for a gas range with an automatic telescopic function as claimed in claim 5, wherein: the upper end of the lead is electrically connected with the temperature sensing unit, and the lower end of the lead is electrically connected with the connector.
7. The dry combustion preventing device for a gas range with an automatic telescopic function as claimed in claim 1, wherein: the nickel-titanium memory alloy spring is fixedly connected with the fixed shaft through a copper ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922228955.3U CN211316261U (en) | 2019-12-12 | 2019-12-12 | Gas-cooker prevents dry combustion method device with automatic flexible function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922228955.3U CN211316261U (en) | 2019-12-12 | 2019-12-12 | Gas-cooker prevents dry combustion method device with automatic flexible function |
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| Publication Number | Publication Date |
|---|---|
| CN211316261U true CN211316261U (en) | 2020-08-21 |
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| CN201922228955.3U Active CN211316261U (en) | 2019-12-12 | 2019-12-12 | Gas-cooker prevents dry combustion method device with automatic flexible function |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113982670A (en) * | 2021-09-28 | 2022-01-28 | 深圳市市政设计研究院有限公司 | Novel tunnel structure based on shape memory alloy |
-
2019
- 2019-12-12 CN CN201922228955.3U patent/CN211316261U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113982670A (en) * | 2021-09-28 | 2022-01-28 | 深圳市市政设计研究院有限公司 | Novel tunnel structure based on shape memory alloy |
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