Automatic flameout protection equipment

Abstract

The utility model discloses automatic flameout protection equipment, which is characterized in that a controllable magnetic attraction power structure is formed by a first permanent magnet, a second permanent magnet, a thermocouple inductive head, a thermal resistance relay and an electromagnetic coil to control a moving plate, so that the position of an inserting plate is controlled, a gas circuit can be automatically cut off when non-natural flameout occurs, and the flameout safety is ensured. Therefore, the purpose of protection is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of gas stoves, in particular to an automatic flameout protection device. Background Art

[0002] As a relatively clean energy source, natural gas has entered thousands of households, and people often use gas stoves to boil water and cook.

[0003] At present, when people use gas stoves, they cannot stay in front of the gas stove for a long time due to various reasons. When they leave, the flame on the gas stove goes out due to unexpected factors, and then the gas leaks continuously, which easily leads to safety accidents.

[0004] Therefore, a flameout automatic protection device is proposed. Utility Model Content

[0005] The purpose of the present invention is to provide an automatic flameout protection device to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: an automatic flameout protection device, comprising a valve body, a thermocouple induction head and a spark head, the side wall of the valve body is integrally formed with an air inlet seat and an air outlet seat, a valve cavity is provided in the valve body, a valve core is rotatably installed in the valve cavity, the air inlet seat and the air outlet seat are both provided with an air path connected to the valve cavity, a tail cavity is provided at the tail of the valve body, a first permanent magnet is embedded in the bottom of the tail cavity, a moving piece is slidably installed at the bottom of the tail cavity, a group of symmetrical inserts are integrally formed at the front end of the moving piece, both of the inserts are provided with air holes, and the air holes are connected to the air The paths cooperate with each other, the outer end of the tail cavity is fixedly installed with a thermal resistance relay and an ignition relay, the inner end surface of the thermal resistance relay is fixedly installed with a second permanent magnet and an electromagnetic coil, the inner end surface of the ignition relay is fixedly installed with a high-frequency ignition coil, the thermal resistance relay is connected to one end of the thermocouple wire, the other end of the thermocouple wire is connected to a thermocouple sensing head, the high-frequency ignition coil is connected to one end of the ignition wire, and the other end of the ignition wire is connected to a spark head, a drive rod is installed through the valve core, the tail end of the drive rod is located in the tail cavity, and the head of the drive rod passes through the front end of the valve body.

[0007] According to the above technical solution, the air inlet seat is fixedly installed with an air inlet pipe, and the air outlet seat is fixedly installed with an air outlet pipe. The air inlet pipe is connected to the gas supply equipment, and the air outlet pipe is connected to the stove.

[0008] According to the above technical solution, the number of air holes opened on a single insert is the same as the number of air paths on the same side, and the spacing between the air holes is greater than or equal to the diameter of the air holes.

[0009] According to the above technical solution, the thermistor relay and the ignition relay are fixedly combined via an insulating plate, and a spring is provided between the moving piece and the thermistor relay.

[0010] According to the above technical solution, the outer end surface of the moving plate is integrally formed with a convex point, the outer periphery of the driving rod is integrally formed with an extruded shaft rod, and the extruded shaft rod is located in the tail cavity, and the extruded shaft rod cooperates with the convex point.

[0011] According to the above technical solution, a plurality of sealing ring sleeves are sleeved on the outer periphery of the valve core, and the number of the sealing ring sleeves is the number of the air paths plus one.

[0012] Compared with the prior art, the beneficial effects achieved by the present invention are:

[0013] A controllable magnetic attraction power structure is formed by the first permanent magnet, the second permanent magnet, the thermocouple induction head, the thermal resistance relay and the electromagnetic coil to control the moving piece, and then realize the position control of the insert piece, so as to ensure that when an unnatural flameout occurs, the gas path can be automatically isolated, thereby achieving the purpose of protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0015] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model from one viewing angle;

[0016] Figure 2 This is a schematic diagram of the cross-sectional structure of the valve body of the utility model;

[0017] Figure 3 This is a schematic diagram of the three-dimensional structure of the sliding structure of the utility model from one perspective;

[0018] Figure 4 This is a three-dimensional structural diagram of the electrical component of the utility model from one perspective;

[0019] Figure 5 This is a schematic diagram of the three-dimensional structure of the electrical component of the present invention from two viewing angles.

[0020] In the figure: 1, valve body, 2, air inlet seat, 3, air outlet seat, 4, air inlet pipe, 5, air outlet pipe, 6, drive rod, 7, thermocouple wire, 8, thermocouple sensor head, 9, ignition wire, 10, spark head, 11, valve core, 12, moving plate, 13, thermal resistance relay, 14, ignition relay, 15, first permanent magnet, 16, spring, 17, insert, 18, air hole, 19, insulating plate, 20, second permanent magnet, 21, electromagnetic coil, 22, high-frequency ignition coil. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] Example 1

[0023] See also Figure 1-5 The utility model provides a technical solution: a flameout automatic protection device, including a valve body 1, a thermocouple sensor head 8 and a spark head 10, the side wall of the valve body 1 is integrally formed with an air inlet seat 2 and an air outlet seat 3, a valve cavity is provided in the valve body 1, a valve core 11 is rotatably installed in the valve cavity, the air inlet seat 2 and the air outlet seat 3 are both provided with an air path connected to the valve cavity, the tail of the valve body 1 is provided with a tail cavity, the bottom of the tail cavity is embedded with a first permanent magnet 15, a moving piece 12 is slidably installed at the bottom of the tail cavity, the front end of the moving piece 12 is integrally formed with a group of symmetrical inserts 17, both of the inserts 17 are provided with air holes 18, the air holes 18 cooperate with the air path, the A thermal resistance relay 13 and an ignition relay 14 are fixedly installed on the outer end of the tail cavity, a second permanent magnet 20 and an electromagnetic coil 21 are fixedly installed on the inner end surface of the thermal resistance relay 13, and a high-frequency ignition coil 22 is fixedly installed on the inner end surface of the ignition relay 14. The thermal resistance relay 13 is connected to one end of the thermocouple wire 7, and the other end of the thermocouple wire 7 is connected to the thermocouple induction head 8. The high-frequency ignition coil 22 is connected to one end of the ignition wire 9, and the other end of the ignition wire 9 is connected to the spark head 10. The valve core 11 is penetrated by a drive rod 6, the tail end of the drive rod 6 is located in the tail cavity, and the head of the drive rod 6 penetrates to the front end of the valve body 1.

[0024] The valve body 1 is the main structure of the device. The air inlet seat 2 and the air outlet seat 3 are convenient for connecting to the external pipeline. At the same time, the gas is conducted through the cavity structure inside the valve body 1. The valve cavity is opened in the valve body 1 to provide a working space for the valve core 11. The valve core 11 rotates itself to practice the on-off and flux adjustment of the gas path. The driving rod 6 rotates the valve core 11 and controls the start and stop of the thermal resistance relay 13 and the ignition relay 14 through the driving rod 6. The first permanent magnet 15 adsorbs and fixes the moving plate 12 in the passage state. The second permanent magnet 20 cooperates with the electromagnetic coil 21 to form a composite magnet. The electromagnetic coil 21 is controlled by the thermocouple induction head 8 and the thermal resistance relay 13, and then the magnetism of the composite magnet is controlled, thereby controlling the position of the moving piece 12. The moving piece 12 controls the position change of the insert piece 17 by changing its own position, thereby realizing the circuit breaker control of the oil circuit. The thermocouple induction head 8 detects the combustion state of the gas stove, and the spark head 10 ignites the gas of the gas stove through its own cooperation with the high-frequency ignition coil 22.

[0025] Specifically, the air inlet seat 2 is fixedly installed with an air inlet pipe 4, and the air outlet seat 3 is fixedly installed with an air outlet pipe 5. The air inlet pipe 4 is connected to the gas supply equipment, and the air outlet pipe 5 is connected to the stove.

[0026] The air inlet pipe 4 introduces external gas into the device to achieve the connection between the air inlet seat 2 and the external pipeline, and the air outlet pipe 5 connects the air outlet seat 3 and the external pipeline to facilitate the overall gas pipeline connection.

[0027] Specifically, the number of the air holes 18 formed on a single insert 17 is the same as the number of the air paths on the same side, and the spacing between the air holes 18 is greater than or equal to the diameter of the air holes 18 .

[0028] By matching the number of air holes 18 with the number of air paths, different flame states required on the gas stove can be supplied, and by controlling the spacing and diameter, limited blocking of all air paths can be achieved.

[0029] Specifically, the thermistor relay 13 and the ignition relay 14 are fixedly assembled via an insulating plate 19 , and a spring 16 is provided between the moving piece 12 and the thermistor relay 13 .

[0030] The overall structure is realized by the insulating combination of the thermal resistance relay 13 and the ignition relay 14. The setting of the spring 16 prevents the moving piece 12 from being pushed to its equilibrium position, thereby enabling the moving piece 12 to effectively move as required.

[0031] Specifically, a convex point is integrally formed on the outer end surface of the moving plate 12, and an extrusion shaft is integrally formed on the outer periphery of the driving rod 6. The extrusion shaft is located in the tail cavity, and the extrusion shaft cooperates with the convex point.

[0032] Through the cooperation of the two, when the driving rod 6 rotates, the position of the movable plate 12 can be effectively adjusted, so that the movable plate 12 is separated by the composite magnet and the magnetic balance is broken to realize the passage of the pipeline.

[0033] Specifically, a plurality of sealing ring sleeves are sleeved on the outer periphery of the valve core 11 , and the number of the sealing ring sleeves is the number of the air paths plus one.

[0034] The sealing ring sleeve keeps the valve core 11 in a sealed state in the working state, thereby preventing the gas from leaking through the valve cavity and the valve core 11 .

[0035] Working principle: When in use, the thermal resistance relay 13 and the ignition relay 14 are connected to an external power supply, and the driving rod 6 rotates, so that the thermal resistance relay 13 and the ignition relay 14 enter the power supply state at the same time. At this time, the movable plate 12 slides inward under the action of the first permanent magnet 15, and the gas pipeline becomes a passage. The gas passes through the air inlet seat 2, the valve core 11 and the air outlet seat 3, and is finally directed to the gas stove. At the same time, the ignition relay 14 drives the high-frequency ignition coil 22, so that the spark head 10 performs high-frequency electric spark excitation, thereby igniting the gas. The gas forms a flame, so that the thermocouple induction head 8 detects high temperature, and then the thermal resistance relay 13 cuts off the power to the electromagnetic coil 21, thereby reducing the magnetic force of the composite magnet, and the movable plate 12 is stably in the inner side;

[0036] When the flame of the gas stove goes out, the feedback temperature of the thermocouple sensing head 8 drops, the thermal resistance relay 13 supplies power to the electromagnetic coil 21, the magnetic force of the composite magnet increases, and the moving piece 12 is attracted back to the outside. At the same time, the insert 17 moves outward to cut off the gas passage, achieving effective protection.

[0037] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0038] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A flameout automatic protection device, comprising a valve body (1), a thermocouple sensor head (8) and a spark head (10), characterized in that: The side wall of the valve body (1) is integrally formed with an air inlet seat (2) and an air outlet seat (3), a valve cavity is provided in the valve body (1), a valve core (11) is rotatably installed in the valve cavity, the air inlet seat (2) and the air outlet seat (3) are both provided with an air path connected to the valve cavity, a tail cavity is provided at the tail of the valve body (1), a first permanent magnet (15) is embedded in the bottom of the tail cavity, a moving plate (12) is slidably installed at the bottom of the tail cavity, a group of symmetrical inserts (17) are integrally formed at the front end of the moving plate (12), both inserts (17) are provided with air holes (18), the air holes (18) and the air path cooperate with each other, a thermal resistance relay (13) and an ignition relay (13) are fixedly installed at the outer end of the tail cavity 4), a second permanent magnet (20) and an electromagnetic coil (21) are fixedly mounted on the inner end surface of the thermal resistance relay (13), a high-frequency ignition coil (22) is fixedly mounted on the inner end surface of the ignition relay (14), the thermal resistance relay (13) is connected to one end of a thermocouple wire (7), the other end of the thermocouple wire (7) is connected to a thermocouple induction head (8), the high-frequency ignition coil (22) is connected to one end of an ignition wire (9), the other end of the ignition wire (9) is connected to a spark head (10), a driving rod (6) is installed through the valve core (11), the tail end of the driving rod (6) is located in the tail cavity, and the head of the driving rod (6) is penetrated to the front end of the valve body (1).

2. The flameout automatic protection device according to claim 1, characterized in that: The air inlet seat (2) is fixedly mounted with an air inlet pipe (4), and the air outlet seat (3) is fixedly mounted with an air outlet pipe (5). The air inlet pipe (4) is connected to the air supply equipment, and the air outlet pipe (5) is connected to the stove.

3. The flameout automatic protection device according to claim 1, characterized in that: The number of air holes (18) opened on a single insert (17) is the same as the number of air paths on the same side, and the spacing between the air holes (18) is greater than or equal to the diameter of the air holes (18).

4. The flameout automatic protection device according to claim 1, characterized in that: The thermal resistance relay (13) and the ignition relay (14) are fixedly combined via an insulating plate (19), and a spring (16) is provided between the moving piece (12) and the thermal resistance relay (13).

5. The flameout automatic protection device according to claim 1, characterized in that: The outer end surface of the moving plate (12) is integrally formed with a convex point, and the outer periphery of the driving rod (6) is integrally formed with an extrusion shaft rod, and the extrusion shaft rod is located in the tail cavity, and the extrusion shaft rod and the convex point cooperate with each other.

6. The flameout automatic protection device according to claim 1, characterized in that: The outer periphery of the valve core (11) is sleeved with a plurality of sealing ring sleeves, and the number of the sealing ring sleeves is the number of the gas paths plus one.

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