Oxygen deficit protection device for gas valve

Abstract

The utility model aims to provide the oxygen deficit protection device for the gas valve, which is stable and reliable in connection. The gas burner comprises a gas nozzle, an igniter and a thermocouple, the igniter is arranged on one side of the gas nozzle, the thermocouple is arranged on the other side of the gas nozzle, the gas nozzle is connected with a gas source through a pipeline, an electromagnetic valve is arranged on the pipeline, the thermocouple is inclined to the gas nozzle, and the electromagnetic valve is arranged on the pipeline. The thermocouple is electrically connected with the electromagnetic valve through a connecting buckle, and the connecting buckle is provided with a locking block matched with the electromagnetic valve connector. The gas equipment safety structure is applied to the technical field of gas equipment safety structures.

Description

Technical Field

[0001] The utility model is applied to the technical field of safety structures of gas equipment, and particularly relates to an oxygen deficiency protection device for a gas valve. Background Art

[0002] Everyday appliances like stoves, gas heaters, and water heaters all rely on igniting gas to generate sufficient heat to heat the kitchenware and water. However, if the equipment experiences a lack of oxygen during use, causing the flame to shut off, the gas will not burn and may leak. Gas is flammable, explosive, and toxic, and a leak can pose a serious safety risk. Therefore, gas valves are typically equipped with an oxygen-deficiency protection device.

[0003] Conventional gas valve oxygen deficiency protection devices typically consist of a thermocouple structure, which works in conjunction with the valve's ignition port. This thermocouple controls a switch in the gas supply channel, automatically shutting off the gas supply when the flame goes out. However, thermocouples typically utilize direct plug-in wiring. Due to vibration and environmental factors in the operating environment, these wiring can become loose or cause poor contact after long-term use, creating safety risks. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a gas valve oxygen deficiency protection device with stable and reliable connection.

[0005] The technical solution adopted by the present invention is as follows: the present invention includes a gas nozzle, an igniter and a thermocouple, the igniter is arranged on one side of the gas nozzle, the thermocouple is arranged on the other side of the gas nozzle, the gas nozzle is connected to the gas source through a pipeline, a solenoid valve is provided on the pipeline, the thermocouple is arranged obliquely to the gas nozzle, the thermocouple is electrically connected to the solenoid valve through a connecting buckle, and the connecting buckle has a locking block that cooperates with the solenoid valve connector.

[0006] As can be seen from the above solution, the use of an inclined thermocouple allows for effective flame detection at the gas nozzle while avoiding the excessive space required by a perpendicular placement of the thermocouple. By using a connecting clip to position the connector, the electrical connection between the thermocouple and the solenoid valve is secure and prevented from accidental loosening due to external factors.

[0007] A preferred solution is that the connecting buckle includes a terminal cover and a connecting buckle integrally formed with the terminal cover, a boss is provided in the middle of the terminal cover, and the locking block is provided on the boss.

[0008] A preferred solution is that the boss is further provided with a barb, and the barb cooperates with the connector inner core of the solenoid valve connector.

[0009] A preferred solution is that the locking block and the boss are punched and formed integrally, the end of the locking block is in the shape of a bent triangular block, and the end of the locking block is limitedly matched with the connector housing of the solenoid valve.

[0010] A preferred solution is that a plurality of limit blocks are provided at the end of the terminal cover, the limit blocks are integrally stamped and formed with the terminal cover, and the limit blocks are limitedly matched with the connector of the solenoid valve.

[0011] A preferred solution is that the present invention includes a limiting frame, and the gas nozzle, the igniter and the thermocouple are all fixed on the limiting frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a three-dimensional structural diagram of the utility model;

[0013] Figure 2 yes Figure 1 Enlarged view of part A;

[0014] Figure 3 is a schematic diagram of a first three-dimensional structure of the connecting buckle;

[0015] Figure 4 3D is a schematic diagram of a second three-dimensional structure of the connecting buckle. DETAILED DESCRIPTION

[0016] like Figure 1 and Figure 2 As shown, in this embodiment, the present invention includes a gas nozzle 1, an igniter 2, and a thermocouple 3. The igniter 2 is disposed on one side of the gas nozzle 1, and the thermocouple 3 is disposed on the other side. The gas nozzle 1 is connected to a gas source via a pipe equipped with a solenoid valve. The thermocouple 3 is disposed obliquely relative to the gas nozzle 1 and electrically connected to the solenoid valve via a connecting clip 4. The connecting clip 4 includes a locking block 41 that mates with the connector of the solenoid valve. The gas nozzle 1 includes a mixing section and a nozzle section. The mixing section is a hollow tube, and the nozzle opening communicates with the inner tube of the mixing section. An air inlet is disposed near the nozzle opening of the mixing section. The air inlet is used to introduce oxygen for mixing. Furthermore, by being positioned near the nozzle opening, liquid intrusion into the gas nozzle 1 can be promptly discharged without affecting normal operation. The locking block 41 mates with the bayonet on the connector to achieve compression and locking after connection.

[0017] like Figure 3 and Figure 4As shown, in this embodiment, the connecting buckle 4 includes a terminal cover 42 and a connecting buckle 43 integrally formed with the terminal cover 42. A boss 44 is provided in the middle of the terminal cover 42, and a locking block 41 is disposed on the boss 44. The connecting buckle 43 is used to secure the wiring harness terminal, thereby ensuring that the terminal remains in a fixed position during connection and ensuring connection reliability. The outer side of the boss 44 is used to cooperate with the connecting port 43 for position limiting. The boss 44 is also provided with a barb 45, which engages with the inner core of the solenoid valve connector. By providing the barb 45, the connector is positioned, further ensuring connection stability. The locking block 41 and the boss 44 are integrally punched and formed. The end of the locking block 41 is in a bent triangular block shape, which engages with the connector housing of the solenoid valve. This integral punched structure ensures the overall consistency of the connecting buckle 4. The bent structure also allows the inner wall of the connector to be compressed by its own elastic force, thus serving to limit the connector. A plurality of limit blocks 46 are provided at the end of the terminal cover 42. The limit blocks 46 are integrally stamped and formed with the terminal cover 42. The limit blocks 46 cooperate with the connector of the solenoid valve to limit the connection. The limit blocks 46 are provided to facilitate confirmation of the connection in place and provide connection tightness.

[0018] like Figure 1 As shown, the present invention includes a retaining frame 5, to which the gas nozzle 1, the igniter 2, and the thermocouple 3 are all fixed. The retaining frame 5 is used to connect and secure the stove. The thermocouple 3 is connected to the connecting clip 4 via a fiberglass tube harness, thereby ensuring a stable and reliable structure during operation.

[0019] Although the embodiments of the present invention are described with practical solutions, they do not limit the meaning of the present invention. For those skilled in the art, it is obvious to modify the implementation scheme and combine it with other solutions based on this description.

Claims

1. A gas valve oxygen deficiency protection device, comprising a gas nozzle (1), an igniter (2) and a thermocouple (3), characterized in that: The igniter (2) is arranged on one side of the gas nozzle (1), and the thermocouple (3) is arranged on the other side of the gas nozzle (1). The gas nozzle (1) is connected to a gas source through a pipeline, and a solenoid valve is arranged on the pipeline. The thermocouple (3) is arranged obliquely to the gas nozzle (1), and the thermocouple (3) is electrically connected to the solenoid valve through a connecting buckle (4). The connecting buckle (4) has a locking block (41) that matches the connector of the solenoid valve.

2. The gas valve oxygen deficiency protection device according to claim 1, characterized in that: The connecting buckle (4) comprises a terminal cover (42) and a connecting buckle (43) integrally formed with the terminal cover (42); a boss (44) is provided in the middle of the terminal cover (42); and the locking block (41) is provided on the boss (44).

3. The gas valve oxygen deficiency protection device according to claim 2, characterized in that: The boss (44) is also provided with a barb (45), and the barb (45) cooperates with the connector inner core of the solenoid valve connector.

4. The gas valve oxygen deficiency protection device according to claim 2, characterized in that: The locking block (41) and the boss (44) are integrally punched and formed, and the end of the locking block (41) is in the shape of a bent triangular block. The end of the locking block (41) is limitedly matched with the connector housing of the solenoid valve.

5. The gas valve oxygen deficiency protection device according to claim 2, characterized in that: A plurality of limit blocks (46) are provided at the end of the terminal cover (42), the limit blocks (46) and the terminal cover (42) are integrally stamped and formed, and the limit blocks (46) are limitedly matched with the connector of the solenoid valve.

6. The gas valve oxygen deficiency protection device according to claim 1, characterized in that: It comprises a limiting frame (5), and the gas nozzle (1), the igniter (2) and the thermocouple (3) are all fixed on the limiting frame (5).

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