CN210107482U - Device for preventing gas stove from dry burning - Google Patents
Device for preventing gas stove from dry burning Download PDFInfo
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- CN210107482U CN210107482U CN201920846678.XU CN201920846678U CN210107482U CN 210107482 U CN210107482 U CN 210107482U CN 201920846678 U CN201920846678 U CN 201920846678U CN 210107482 U CN210107482 U CN 210107482U
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- flame probe
- probe
- guide plate
- gas stove
- electromagnet
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Abstract
The utility model discloses a device for preventing gas-cooker from burning futilely, including power module, flame probe and temperature control device, flame probe installs on elevating system, elevating system includes casing, electro-magnet, deflector and spring, is formed with the first cavity that holds the electro-magnet and holds flame probe's second cavity in the casing, and the electro-magnet has the ejector pin, and the ejector pin has the protruding portion that passes the deflector, is provided with the spring in the first cavity, and flame probe connects on the deflector, and flame probe's top is extended the casing and is connected with the gas solenoid valve, and power module is the electro-magnet power supply, and temperature control device establishes ties between power module and electro-magnet, the break-make of temperature control device control electro-magnet, the deflector moves flame probe and is elevating movement under the combined action of electro-magnet and spring.
Description
Technical Field
The utility model relates to a gas-cooker field, particularly, the utility model relates to a prevent device that gas-cooker burns futilely.
Background
With the continuous improvement of safety awareness of consumers, gas cookers equipped with dry burning prevention devices are attracting more and more attention.
The gas stove with the flameout protection device detects the flame condition through the thermocouple or the ion probe, and once the flame is abnormal or flameout, the gas electromagnetic valve on the stove automatically cuts off the gas to ensure the use safety. The temperature controller used for preventing dry burning is generally in a normally closed structure, the temperature controller is connected in series with a connecting line of a flame probe thermocouple and a gas electromagnetic valve coil or connected in series with a connecting line of an ion probe and the coil, and when the burning temperature exceeds a limit value, the temperature controller is disconnected, so that the gas electromagnetic valve is closed. On a gas stove, a thermocouple or an ion probe is fixedly installed and cannot move.
However, in the conventional structure, the temperature controller is connected in series to the connection line between the thermocouple and the coil of the gas solenoid valve, or connected in series to the connection line between the ion probe and the coil of the gas solenoid valve, so that the failure rate is increased due to the series connection, and the reliability of the gas cooker is reduced.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a device for preventing gas-cooker from burning futilely is provided, it can effectively prevent that gas-cooker from burning futilely under the prerequisite that reduces the fault rate.
In order to solve the technical problem, the utility model discloses a following technical scheme: a device for preventing a gas stove from being burnt dry comprises a power supply module, a flame probe and a temperature control device, wherein the flame probe is installed on a lifting mechanism, the lifting mechanism comprises a shell, an electromagnet, a guide plate and a spring, a first cavity for accommodating the electromagnet and a second cavity for accommodating the flame probe are formed in the shell, the electromagnet is provided with an ejector rod, the ejector rod is provided with a protruding part penetrating through the guide plate, the spring for applying elastic acting force to the guide plate is arranged in the first cavity and on the other side of the guide plate, the flame probe is connected onto the guide plate, the top end of the flame probe extends out of the shell and is connected with a gas electromagnetic valve, the power supply module supplies power to the electromagnet, the temperature control device is connected between the power supply module and the electromagnet in series, the temperature control device controls the on-off of the electromagnet, and the guide plate drives the flame probe to do lifting motion under the combined action of the electromagnet and the spring.
The gas stove dry burning prevention device is characterized in that the shell is provided with an open end and an end plate, the open end of the shell is provided with a plurality of threaded holes, and the end plate is fixedly connected with the shell through screws penetrating through the threaded holes.
In the device for preventing dry burning of the gas stove, the guide plate is provided with a first guide hole, the protruding part of the ejector rod penetrates into the first guide hole, and the guide plate is limited by the step formed at the protruding part.
In the device for preventing the gas stove from being dried, the wiring groove is arranged in the shell and positioned in the first cavity, and the end plate is provided with a lead leading-out hole.
The device for preventing the gas stove from being burnt dry is characterized in that a second guide hole is formed in the guide plate, one end of the flame probe penetrates into the second guide hole and is limited through a limiting boss located on the flame probe, a positioning thread section is further arranged at a position, close to the limiting boss, on the flame probe, a positioning nut is screwed on the positioning thread section, and the guide plate is fixed between the limiting boss and the positioning nut.
In the device for preventing the gas stove from being dried, the end plate is provided with a probe leading-out hole, and the tail end of the flame probe extends out of the probe leading-out hole.
According to the device for preventing the gas stove from being burnt dry, the guide pipe with the external thread is arranged at the upper end of the shell, the top end of the flame probe extends out of the guide pipe, and the mounting nut is screwed outside the guide pipe.
In the above device for preventing dry burning of the gas stove, the flame probe is a thermocouple or an ion probe.
In the above device for preventing dry combustion of the gas stove, the power supply module is a battery or a power adapter.
Compared with the prior art, the beneficial effects of the utility model reside in that: the utility model provides a new device for preventing gas stove from burning dry, which widens the way of preventing dry burning. The utility model discloses, need not to establish ties temperature control device between flame probe and gas solenoid valve, reduced the fault point, improved the reliability that the gas-cooker used.
Drawings
Fig. 1 is a front view of an embodiment of the device for preventing dry burning of a gas range of the present invention, wherein a cross section of a lifting mechanism and a flame probe is adopted;
FIG. 2 is a cross-sectional view of the housing of FIG. 1;
FIG. 3 is a bottom view of FIG. 2;
FIG. 4 is a perspective view of the flame probe of FIG. 1;
FIG. 5 is a bottom view of the guide plate of FIG. 1;
FIG. 6 is a bottom view of the endplate of FIG. 1;
FIG. 7 is a front view of another embodiment of the present invention, wherein the lift mechanism is shown in cross-section with the flame probe;
fig. 8 is a cross-sectional view of a housing in a further embodiment of the invention;
FIG. 9 is a bottom view of FIG. 8;
fig. 10 is a bottom view of an end plate that mates with the housing shown in fig. 8.
Description of the reference numerals
1-a temperature control device;
21-a lifting mechanism; 22-a power supply module; 211-a housing; 2111-a guide tube; 2112-first cavity; 2113-second cavity; 2114-threaded hole; 2115-trunking; 212-an electromagnet; 213-flame probe; 2131-positioning the threaded section; 2132-limit lug bosses; 214-mounting nuts; 215-a positioning nut; 216-a guide plate; 2161-a second guide hole; 2162-a first guide hole; 217-a spring; 218-end plate; 2181-hole for leading out wires; 2182-probe outlet hole; 2183-threaded mounting holes.
Detailed Description
The present invention will be described in further detail with reference to the following drawings and specific examples, which should not be construed as limiting the invention.
Fig. 1 to 6 show a first embodiment of the device for preventing dry burning of a gas range of the present invention.
Referring to fig. 1-6, the device for preventing dry burning of a gas stove of the present invention comprises a power supply module 22, a lifting mechanism 21, a flame probe 213 and a temperature control device 1. In the present embodiment, the flame probe 213 is a thermocouple, and the elevation thereof is driven by the electromagnet 212, but the flame probe 213 may be an ion probe. Temperature control device 1 can be the normal close formula structure, and temperature control device 1 includes but not limited to mechanical type temperature controller, electron temperature controller etc..
The lifting mechanism 21 includes a housing 211, an electromagnet 212, a guide plate 216, and a spring 217, the housing 211 has an open end and is provided with an end plate 218, specifically, the open end of the housing 211 is provided with a plurality of threaded holes 2114, the end plate 218 is provided with a plurality of threaded mounting holes 2183, and the end plate 218 is fixedly connected to the housing 211 through screws penetrating through the threaded mounting holes 2183 and the threaded holes 2114.
As shown in fig. 1, a first cavity 2112 for accommodating the electromagnet 212 and a second cavity 2113 for accommodating the flame probe 213 are formed in the housing 211, the electromagnet 212 having a plunger (not shown) with a protrusion extending through the guide plate 216, the first cavity 2112, the other side of the guide plate 216 is provided with a spring 217 for applying elastic acting force to the guide plate 216, the flame probe 213 is connected to the guide plate 216, the top end of the flame probe 213 extends out of the shell 211 and is connected with the gas electromagnetic valve, the power supply module 22 supplies power to the electromagnet 212, the temperature control device 1 is connected in series between the power supply module 22 and the electromagnet 212, the temperature control device 1 controls the on-off of the electromagnet 212, and the flame probe 213 and the guide plate 216 do up-and-down lifting motion under the combined action of the electromagnet 212 and the spring 217 to enable the top of the flame probe to be in contact with or separate from flame, so that the on-off of.
When the gas stove works, the power supply device supplies power to the electromagnet 212 of the lifting mechanism 21, so that the lifting mechanism 21 is controlled to be in a state that the flame probe 213 is kept at a normal working position, the top end of the flame probe 213 is completely contacted with flame, once the temperature control device 1 is disconnected because the temperature of the gas stove exceeds a preset value, the power supply module 22 cuts off the power supply to the electromagnet 212, the flame probe 213 descends to a position where the top end of the flame probe is separated from the contact with the flame, the gas electromagnetic valve is disconnected, and the gas stove stops.
In order to facilitate the action of the guide plate 216 driven by the electromagnet 212, the guide plate 216 is provided with a first guide hole 2162, the protrusion of the ram is inserted into the first guide hole 2162, and the guide plate 216 is limited by a step formed at the protrusion (i.e., formed by a diameter size change, the diameter of the protrusion is smaller than that of the first guide hole 2162, and the diameter of the ram section located below the protrusion is larger than that of the first guide hole 2162, so that a step is formed therebetween). Thus, when the electromagnet 212 moves upward in the figure, the step on the plunger can push the guide plate 216 to move.
To facilitate routing of the electromagnet 212, as shown in fig. 2 and 3, a routing slot 2115 is provided in the housing 211 at a position inside the first cavity 2112, and as shown in fig. 6, a wire exit hole 2181 is provided on the end plate 218 to allow a cable to exit and be electrically connected to the temperature control device 1 and the power supply module 22.
In order to facilitate the guide plate 216 to drive the flame probe 213 to move, as shown in fig. 4 and 5, a second guide hole 2161 is formed in the guide plate 216, one end of the flame probe 213 penetrates through the second guide hole 2161 and is limited by a limit boss 2132 located on the flame probe 213, a positioning threaded section 2131 is further disposed on the flame probe 213, a positioning nut 215 is screwed on the positioning threaded section 2131, and the guide plate 216 is fixed between the limit boss 2132 and the positioning nut 215. In addition, as shown in fig. 6, a probe leading-out hole 2182 is formed in the end plate 218, and the tip of the flame probe 213 extends from the probe leading-out hole 2182.
In the present invention, the upper end of the housing 211 is provided with a guide tube 2111 having an external thread, as shown in fig. 2. The tip of the flame probe 213 extends from the guide tube 2111, and the guide tube 2111 is externally threaded with a mounting nut 214. For example, the guide tube 2111 may be formed as a two-piece semi-circular arc and extend in a tapered shape, and the amount of the distance between the guide tube 2111 and the gas probe can be adjusted by adjusting the position of the mounting nut 214.
The power supply module 22 is used for supplying power to the electromagnet 212, and the power supply module 22 may be a battery or a power adapter, or may be composed of a permanent magnet and a coil.
In this embodiment, when the stove works, the power supply module 22 supplies power to the electromagnet 212, the ejector rod of the electromagnet 212 extends out to drive the guide plate 216 to move, and the guide plate 216 drives the flame probe 213 to rise to a working position; when the temperature control device 1 is disconnected or the stove is turned off, the power supply module 22 stops supplying power, at this time, the electromagnet 212 does not apply acting force to the guide plate 216 any more, the ejector rod of the electromagnet 212 retracts, and the flame probe 213 is lowered to the set lowest position under the elastic acting force of the spring 217.
Fig. 7 shows a second embodiment of the present invention, and the same portions as those of the first embodiment are not expanded, and only the differences will be described.
Referring to fig. 7, in the present embodiment, the installation direction of the electromagnet 212 is opposite to that of the first embodiment, and correspondingly, the moving direction of the plunger rod of the electromagnet 212 is also opposite, and the positions of the positioning threaded section 2131 and the limiting boss 2132 of the flame probe 213 are moved downward.
When the stove works, the electromagnet 212 is electrified, the ejector rod is converted into a retraction state from an extension state, and the guide plate 216 is pushed to move upwards under the elastic acting force of the spring 217, so that the flame probe 213 is lifted to a working position; when the temperature control device 1 is disconnected or the stove is closed, the power supply module 22 stops supplying power, the ejector rod of the electromagnet 212 extends out, and the flame probe 213 is lowered to the set lowest position.
Fig. 8-10 show a third embodiment of the invention.
Referring to fig. 8 to 10, the present embodiment is different from the first embodiment in that the outer shape of the housing 211 is changed depending on the position of the wiring groove 2115 in the first cavity 2112 of the housing 211 of the elevating mechanism 21. In addition, the outer shape of the end plate 218 and the wire lead-out hole 2181 of the electromagnet 212 are changed.
The utility model discloses a prevent device that gas-cooker burns futilely, the temperature that detects flame through flame probe 213 transmits to temperature control device 1, and when the temperature exceeded the default, temperature control device 1 action was disconnected promptly, and electro-magnet 212 (like the second embodiment) or spring 217 (like the first embodiment) drive deflector 216 and remove to make flame probe 213 descend and break away from the contact with flame, the gas solenoid valve that links to each other with flame probe 213 closes, gas-cooker stop work.
The utility model discloses, flame probe 213 on the gas-cooker is no longer fixed, and flame probe 213 can reciprocate, and temperature control device 1 need not establish ties between gas solenoid valve and flame probe 213, controls flame probe 213's lift through temperature control device 1 to reach the purpose that the gas-cooker prevented dry combustion method.
The utility model discloses a prevent device that gas-cooker burns futilely has following advantage: 1. a new dry burning prevention device is provided for the gas stove, and the way of preventing the gas stove from being dried is widened; the utility model can not only prevent the gas stove from dry burning, but also prevent the edible oil from over-temperature burning during cooking, and avoid the gas waste and potential safety hazard caused by overlong idle burning time of the gas stove, thus obviously improving the safety of the gas stove and widening the application of the dry burning prevention device; 3. the temperature control device is not required to be connected between the flame probe and the gas electromagnetic valve in series, so that the number of fault points is reduced, and the use reliability of the gas stove is improved.
The above embodiments are only exemplary embodiments of the present invention, and are not intended to limit the present invention, and the protection scope of the present invention is defined by the claims. Various modifications and equivalents of the invention can be made by those skilled in the art within the spirit and scope of the invention, and such modifications and equivalents should also be considered as falling within the scope of the invention.
Claims (9)
1. A device for preventing a gas stove from being burnt dry comprises a power supply module, a flame probe and a temperature control device, and is characterized in that the flame probe is installed on a lifting mechanism, the lifting mechanism comprises a shell, an electromagnet, a guide plate and a spring, a first cavity for accommodating the electromagnet and a second cavity for accommodating the flame probe are formed in the shell, the electromagnet is provided with an ejector rod, the ejector rod is provided with a protruding part penetrating through the guide plate, the spring for applying elastic acting force to the guide plate is arranged on the other side of the guide plate in the first cavity, the flame probe is connected onto the guide plate, the top end of the flame probe extends out of the shell and is connected with a gas electromagnetic valve, the power supply module supplies power to the electromagnet, the temperature control device is connected in series between the power supply module and the electromagnet, the temperature control device controls the on-off of the electromagnet, and the guide plate drives the flame probe to do lifting motion under the combined action of the electromagnet and the spring.
2. The device for preventing the gas stove from being burnt dry as claimed in claim 1, wherein the housing has an open end and is provided with an end plate, the open end of the housing is provided with a plurality of threaded holes, and the end plate is fixedly connected with the housing through screws penetrating through the threaded holes.
3. The device for preventing the gas stove from being burnt dry as claimed in claim 1, wherein the guide plate is provided with a first guide hole, the protruding part of the ejector rod penetrates into the first guide hole, and a step formed at the protruding part limits the guide plate.
4. The device for preventing the gas stove from being burnt dry as claimed in claim 2, wherein a wiring groove is arranged in the shell at the position of the first cavity, and a lead leading-out hole is arranged on the end plate.
5. The device for preventing the gas stove from being burnt dry as claimed in claim 1, wherein a second guide hole is formed in the guide plate, one end of the flame probe penetrates through the second guide hole and is limited through a limiting boss located on the flame probe, a positioning thread section is further arranged on the flame probe at a position adjacent to the limiting boss, a positioning nut is screwed on the positioning thread section, and the guide plate is fixed between the limiting boss and the positioning nut.
6. The device for preventing the gas stove from being burnt dry as claimed in claim 2, wherein the end plate is provided with a probe leading-out hole, and the tail end of the flame probe extends out of the probe leading-out hole.
7. The device for preventing the gas stove from being burnt dry as claimed in claim 1, wherein a guide pipe with external threads is provided at the upper end of the housing, the top end of the flame probe extends out of the guide pipe, and a mounting nut is screwed outside the guide pipe.
8. The device for preventing the dry burning of a gas stove as claimed in claim 1, wherein the flame probe is a thermocouple or an ion probe.
9. The device for preventing the gas stove from being burnt dry as claimed in claim 1, wherein the power supply module is a battery or a power adapter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920846678.XU CN210107482U (en) | 2019-06-05 | 2019-06-05 | Device for preventing gas stove from dry burning |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920846678.XU CN210107482U (en) | 2019-06-05 | 2019-06-05 | Device for preventing gas stove from dry burning |
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| Publication Number | Publication Date |
|---|---|
| CN210107482U true CN210107482U (en) | 2020-02-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920846678.XU Active CN210107482U (en) | 2019-06-05 | 2019-06-05 | Device for preventing gas stove from dry burning |
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| CN (1) | CN210107482U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110107927A (en) * | 2019-06-05 | 2019-08-09 | 浙江久康电器有限公司 | Prevent the devices and methods therefor of gas-cooker dry combustion method |
-
2019
- 2019-06-05 CN CN201920846678.XU patent/CN210107482U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110107927A (en) * | 2019-06-05 | 2019-08-09 | 浙江久康电器有限公司 | Prevent the devices and methods therefor of gas-cooker dry combustion method |
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