Gas valve with flameout protection function

Abstract

The utility model discloses a gas valve with a flameout protection function, which belongs to the technical field of gas valves and comprises a valve seat, a first gas supply flow channel and a second gas supply flow channel are arranged in the valve seat, a valve core is arranged in the first gas supply flow channel, a flameout protection device is arranged in the second gas supply flow channel, and the flameout protection device is arranged in the valve core. The first gas supply flow channel and the second gas supply flow channel are not coaxially arranged, and gas enters the valve seat and sequentially passes through the second gas supply flow channel and the first gas supply flow channel. A novel gas valve structure is designed to adapt to the installation environment in the vehicle-mounted gas oven.

Description

Technical Field

[0001] The present application relates to the technical field of gas valves, and in particular to a gas valve with flameout protection. Background Art

[0002] With the improvement of living standards, people's demand for food is becoming more and more abundant. Non-traditional gas kitchen appliances such as gas ovens have become popular. The gas plug valve is one of the core structures of the gas oven. The gas plug valve includes a valve body, a rotary rod and a plug. The plug is connected to the valve body by rotating the rotary rod and is also arranged on the operation panel of the gas oven. The gas in the valve body flow channel is cut off and connected by rotating the plug to adjust the burner fire of the oven and determine the optimal cooking temperature. After cooking, turn the plug to close it. However, the sealing effect of the general gas plug valve is poor. Even after the gas source is manually cut off, there is a safety hazard of leakage.

[0003] Related prior arts such as the Chinese patent "A dual-flow gas plug valve", application number: CN202222840460.8; discloses that it includes a valve body and a rotary rod, the valve body includes a shell, a valve core and a drive assembly, the valve core and the drive assembly are respectively arranged in the air supply channel and the installation channel of the shell, the rotary rod is connected to the valve core through the drive assembly, an air inlet connected to the air supply channel is opened on the shell, the shell has an extended branch protruding outward, one end of the shell and the extended branch have a main air outlet and a branch air outlet connected to the air supply channel, a first channel is opened on the side of the valve core close to the air inlet, and a second channel is opened on the side of the valve core close to the main air outlet, the two are connected, and an external expansion groove is opened on the side of the valve core close to the branch air outlet, and the external expansion groove is connected to the air inlet and the branch air outlet.

[0004] This application is mainly used in gas ovens in RVs. Considering the safety of gas use, it is necessary to add a flameout protection device to the gas valve. The common practice is to add a flameout protection device to the original channel, but because this application is used in RVs, the structure of its gas oven limits the length of the gas valve. That is, the space in the existing gas valve is not enough to install a flameout protection device, and it is impossible to arrange the flameout protection device by increasing the length of the channel in the gas valve. Therefore, the inventor of this application has made further improvements to the gas valve structure, adding a flameout protection device to the existing gas valve structure, and reasonably arranging the structure without increasing the original length of the product channel in the axial direction. Utility Model Content

[0005] The technical problem to be solved by the present application is to provide a gas valve with flameout protection and to design a new gas valve structure to adapt to the installation environment in a vehicle-mounted gas oven.

[0006] The technical solution adopted in the present application is: a gas valve with flameout protection, including a valve seat, a first gas supply channel and a second gas supply channel are arranged in the valve seat, a valve core is arranged in the first gas supply channel, and a flameout protection device is arranged in the second gas supply channel, the first gas supply channel and the second gas supply channel are arranged coaxially, and the gas enters the valve seat through the second gas supply channel and the first gas supply channel in sequence.

[0007] Compared with the prior art, the advantage of the present application is that, considering the limited installation environment in the vehicle-mounted gas oven, it is impossible to increase the axial length of the air supply channel, that is, it is impossible to install the lower valve core and the flameout protection device in one air supply channel at the same time. The present application sets a first air supply channel and a second air supply channel in the valve seat. The non-coaxial setting of the two will not increase the axial length of the valve shaft in the air supply channel, which meets the installation environment in the vehicle-mounted gas oven. Then a valve core is set in the first air supply channel, and a flameout protection device is set in the second air supply channel. The gas enters the valve seat through the second air supply channel and the first air supply channel in turn. That is, the gas entering the valve seat will pass through the flameout protection device and the valve core, which solves the safety problem of gas use.

[0008] In some embodiments of the present application, the first gas supply channel and the second gas supply channel are arranged in parallel with each other, which is a preferred embodiment of the present application, that is, the lateral volume of the gas valve is increased without affecting the volume in other directions.

[0009] In some embodiments of the present application, the valve seat is further provided with an inlet flow channel, and the inlet flow channel is vertically arranged above the first supply flow channel; the valve seat is provided with a mounting portion, and the mounting portion is located at the outer periphery of the inlet flow channel.

[0010] In the present application, the valve seat is provided with a mounting portion at the inlet flow passage for installation in conjunction with a vehicle-mounted gas oven.

[0011] In some embodiments of the present application, the valve seat is also provided with a first branch channel, and the first branch channel connects the inlet channel and the second supply channel. The first branch channel is inclined, and the angle between the first branch channel and the plane where the first supply channel and the second supply channel are located is an acute angle.

[0012] In some embodiments of the present application, the valve seat is further provided with a second branch channel, the second branch channel connects the second supply channel and the first supply channel, and the second branch channel and the first supply channel and the second supply channel are located in the same plane.

[0013] The present application reasonably arranges the first branch flow channel and the second branch flow channel, and well connects the inlet flow channel, the first branch flow channel, and the second branch flow channel as required, so that the gas can move along a predetermined movement trajectory after entering the valve seat.

[0014] In some embodiments of the present application, the second gas supply channel is provided with a channel opening 1 connected to the first branch channel, the second gas supply channel is provided with a channel opening 2 connected to the second branch channel, and the flameout protection device is located between the channel opening 1 and the channel opening 2; the gas enters the second gas supply channel from the first branch channel and passes through the flameout protection device to the second branch channel.

[0015] In some embodiments of the present application, the first gas supply channel is connected to the gas outlet, and the gas outlet is coaxial with the first gas supply channel; the gas enters the second gas supply channel from the second branch channel and passes through the valve core to the second branch channel.

[0016] In some embodiments of the present application, the present application further includes a rotary rod, which is connected to the mechanical valve core through a spring; one end of the spring is fixed to the mechanical valve core, and the other end of the spring is connected to the rotary rod.

[0017] In some embodiments of the present application, one end of the rotary rod extends into the valve seat and is in contact with the spring, and the other end of the rotary rod is located outside the valve seat. The rotary rod is subjected to force and can move axially a predetermined distance relative to the valve seat, and the rotary rod is subjected to force and rotates around the central axis relative to the valve seat.

[0018] In some embodiments of the present application, the present application also includes a connecting rod, the flameout protection device is an electromagnetic valve, one end of the connecting rod is connected to the flameout protection device, the other end of the connecting rod is located outside the valve seat, the connecting rod is arranged parallel to the rotating rod, and a push plate is arranged on the other end of the rotating rod. The rotating rod can rotate around the central axis relative to the push plate, and the axial movement of the rotating rod drives the push plate to move synchronously. The push plate is located on the outside of the other end of the connecting rod, and the push plate moves toward the side where the connecting rod is located, which drives the connecting rod to move synchronously.

[0019] That is, when the rotating rod is subjected to force and rotates around its central axis, the connecting piece moves without force, and the corresponding connecting rod is not subjected to force. When the rotating rod is subjected to force and moves axially, it drives the push plate to move synchronously. When the push plate moves to the side where the connecting rod is located, the push plate will contact and connect with the connecting rod, thereby driving the connecting rod to move synchronously.

[0020] The above-mentioned implementation modes can be combined arbitrarily based on the common knowledge in the art. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present application will be further described in detail below in conjunction with the accompanying drawings and preferred embodiments, but those skilled in the art will appreciate that these drawings are drawn only for the purpose of explaining the preferred embodiments and therefore should not be used as a limitation on the scope of the present application. In addition, unless otherwise specified, the drawings are only schematically representing the composition or structure of the described objects and may contain exaggerated displays, and the drawings are not necessarily drawn to scale.

[0022] Figure 1This is a schematic diagram of the structure of this application;

[0023] Figure 2 A side view of the present application;

[0024] Figure 3 for Figure 2 Sectional view of section AA;

[0025] Figure 4 A top view of the present application;

[0026] Figure 5 for Figure 4 Cross-sectional view of the middle BB section;

[0027] Figure 6 for Figure 4 Cross-sectional view of section CC.

[0028] Among them, the specific descriptions of the figure marks are as follows: 1. valve seat; 2. air inlet channel; 3. first branch channel; 4. second air supply channel; 5. second branch channel; 6. first air supply channel; 7. air outlet; 8. valve core; 9. flameout protection device; 10. mounting part; 11. rotary rod; 12. spring; 13. connecting rod; 14. push plate. DETAILED DESCRIPTION

[0029] The present application is described in detail below in conjunction with the accompanying drawings.

[0030] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0031] A gas valve with flameout protection, an embodiment of the invention is as follows Figures 1 to 3 As shown: it includes a valve seat 1, wherein the valve seat 1 is provided with a first supply channel 6 and a second supply channel 4, wherein the first supply channel 6 and the second supply channel 4 are not coaxially arranged, and the gas enters the valve seat 1 through the second supply channel 4 and the first supply channel 6 in sequence. The first supply channel 6 and the second supply channel 4 are provided in the valve seat 1, and the non-coaxial arrangement of the two will not increase the axial length of the valve shaft in the supply channel, and thus meet the installation environment in the vehicle-mounted gas oven.

[0032] A valve core 8 is provided in the first supply channel 6, and a flameout protection device 9 is provided in the second supply channel 4. The gas enters the valve seat 1 and sequentially passes through the second supply channel 4 and the first supply channel 6. That is, the gas entering the valve seat 1 passes through the flameout protection device 9 and the valve core 8, thereby solving the safety problem of gas use.

[0033] Embodiment 2, as Figures 3 to 6As shown, the first gas supply passage 6 and the second gas supply passage 4 are arranged parallel to each other. This is a preferred embodiment of the present application, that is, the lateral volume of the gas valve is increased without affecting the volume in other directions.

[0034] The valve seat 1 is also provided with an inlet flow channel 2, which is vertically arranged above the first supply flow channel 6; the valve seat 1 is provided with a mounting portion 10, which is located at the periphery of the inlet flow channel 2. In the present application, the valve seat 1 is provided with a mounting portion 10 at the inlet flow channel 2 for installation in conjunction with a vehicle-mounted gas oven.

[0035] The valve seat 1 is also provided with a first branch channel 3, which connects the inlet channel 2 and the second supply channel 4. The first branch channel 3 is inclined, and the angle between the first branch channel 3 and the plane where the first supply channel 6 and the second supply channel 4 are located is an acute angle.

[0036] The valve seat 1 is also provided with a second branch flow channel 5, the second branch flow channel 5 connects the second gas supply channel 4 and the first gas supply channel 6, and the second branch flow channel 5 is located in the same plane as the first gas supply channel 6 and the second gas supply channel 4. The present application reasonably arranges the first branch flow channel 3 and the second branch flow channel 5, and well connects the gas inlet channel 2, the first branch flow channel 3, and the second branch flow channel 5 according to the requirements, so that the gas can move along the predetermined moving trajectory after entering the valve seat 1.

[0037] The second gas supply channel 4 is provided with a channel opening 1 connected to the first branch channel 3, and the second gas supply channel 4 is provided with a channel opening 2 connected to the second branch channel 5, and the flameout protection device 9 is located between the channel opening 1 and the channel opening 2; the gas enters the second gas supply channel 4 from the first branch channel 3 and passes through the flameout protection device 9 to the second branch channel 5.

[0038] The first gas supply channel 6 is connected to the gas outlet 7 , and the gas outlet 7 is coaxial with the first gas supply channel 6 ; the gas enters the second gas supply channel 4 from the second branch channel 5 and passes through the valve core 8 to the second branch channel 5 .

[0039] The rest of the content of the second embodiment is the same as that of the first embodiment.

[0040] Embodiment three, as Figures 1 to 6 As shown, the present application further includes a rotary rod 11 , which is connected to the mechanical valve core 8 via a spring 12 ; one end of the spring 12 is fixed to the mechanical valve core 8 , and the other end of the spring 12 is connected to the rotary rod 11 .

[0041] One end of the rotary rod 11 extends into the valve seat 1 and contacts and connects with the spring 12, and the other end of the rotary rod 11 is located outside the valve seat 1. The rotary rod 11 is subjected to force and can move a predetermined distance axially relative to the valve seat 1. The rotary rod 11 is subjected to force and rotates around the central axis relative to the valve seat 1.

[0042] The present application also includes a connecting rod 13. The flameout protection device 9 is a solenoid valve. One end of the connecting rod 13 is connected to the flameout protection device 9. The other end of the connecting rod 13 is located outside the valve seat 1. The connecting rod 13 is arranged in parallel with the rotating rod 11. A push plate 14 is provided on the outer sleeve of the other end of the rotating rod 11. The rotating rod 11 can rotate around the central axis relative to the push plate 14. The rotating rod 11 moves axially and drives the push plate 14 to move synchronously. The push plate 14 is located on the outer side of the other end of the connecting rod 13. The push plate 14 moves toward the side where the connecting rod 13 is located and drives the connecting rod 13 to move synchronously. That is, when the rotating rod 11 is subjected to force to rotate around its central axis, the connecting member moves without force, and the corresponding connecting rod 13 is not subjected to force. When the rotating rod 11 is subjected to force and moves axially, it drives the push plate 14 to move synchronously. When the push plate 14 moves toward the side where the connecting rod 13 is located, the push plate 14 will contact and connect with the connecting rod 13, thereby driving the connecting rod 13 to move synchronously.

[0043] The other contents of the third embodiment are the same as those of the first embodiment or the second embodiment.

[0044] The present application is described in detail above. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the present application and its core ideas. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present application, several improvements and modifications can be made to the present application, and these improvements and modifications also fall within the scope of protection of the claims of the present application.

Claims

1. A gas valve with flameout protection, characterized in that: The invention comprises a valve seat (1), wherein a first gas supply passage (6) and a second gas supply passage (4) are arranged in the valve seat (1), a valve core (8) is arranged in the first gas supply passage (6), and a flameout protection device (9) is arranged in the second gas supply passage (4), the first gas supply passage (6) and the second gas supply passage (4) are arranged non-coaxially, and the gas enters the valve seat (1) and passes through the second gas supply passage (4) and the first gas supply passage (6) in sequence.

2. A gas valve with flameout protection according to claim 1, characterized in that: The first air supply channel (6) and the second air supply channel (4) are arranged parallel to each other.

3. A gas valve with flameout protection according to claim 1, characterized in that: The valve seat (1) is further provided with an inlet flow channel (2), and the inlet flow channel (2) is vertically arranged above the first supply flow channel (6); the valve seat (1) is provided with a mounting portion (10), and the mounting portion (10) is located on the outer periphery of the inlet flow channel (2).

4. A gas valve with flameout protection according to claim 3, characterized in that: The valve seat (1) is further provided with a first branch flow channel (3), the first branch flow channel (3) connecting the inlet flow channel (2) and the second supply flow channel (4), the first branch flow channel (3) being arranged at an angle, and the angle between the first branch flow channel (3) and the planes on which the first supply flow channel (6) and the second supply flow channel (4) are located is an acute angle.

5. A gas valve with flameout protection according to claim 3 or 4, characterized in that: The valve seat (1) is further provided with a second branch flow channel (5), the second branch flow channel (5) being connected to the second flow supply channel (4) and the first flow supply channel (6), and the second branch flow channel (5) and the first flow supply channel (6) and the second flow supply channel (4) are located in the same plane.

6. A gas valve with flameout protection according to claim 5, characterized in that: The second gas supply channel (4) is provided with a channel opening 1 connected to the first branch channel (3), the second gas supply channel (4) is provided with a channel opening 2 connected to the second branch channel (5), and the flameout protection device (9) is located between the channel opening 1 and the channel opening 2; the gas enters the second gas supply channel (4) from the first branch channel (3) and passes through the flameout protection device (9) to the second branch channel (5).

7. A gas valve with flameout protection according to claim 1, characterized in that: The first gas supply channel (6) is connected to the gas outlet (7), and the gas outlet (7) is coaxial with the first gas supply channel (6); the gas enters the second gas supply channel (4) from the second branch flow channel (5) and passes through the valve core (8) to the second branch flow channel (5).

8. A gas valve with flameout protection according to claim 1, characterized in that: It also comprises a rotary rod (11), wherein the rotary rod (11) is connected to the mechanical valve core (8) via a spring (12); one end of the spring (12) is fixed to the mechanical valve core (8), and the other end of the spring (12) is connected to the rotary rod (11).

9. A gas valve with flameout protection according to claim 8, characterized in that: One end of the rotary rod (11) extends into the valve seat (1) and is in contact with the spring (12), and the other end of the rotary rod (11) is located outside the valve seat (1). The rotary rod (11) is subjected to force and can move axially a predetermined distance relative to the valve seat (1). The rotary rod (11) is subjected to force and rotates around the central axis relative to the valve seat (1).

10. A gas valve with flameout protection according to claim 9, characterized in that: The valve also includes a connecting rod (13), wherein the flameout protection device (9) is a solenoid valve, wherein one end of the connecting rod (13) is connected to the flameout protection device (9), and the other end of the connecting rod (13) is located outside the valve seat (1). The connecting rod (13) is arranged in parallel with the rotating rod (11), and a push plate (14) is provided on the outer sleeve of the other end of the rotating rod (11). The rotating rod (11) can rotate around a central axis relative to the push plate (14), and the rotating rod (11) moves axially to drive the push plate (14) to move synchronously. The push plate (14) is located outside the other end of the connecting rod (13), and the push plate (14) moves toward the side where the connecting rod (13) is located to drive the connecting rod (13) to move synchronously.

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