Control valve and linkage type fuel gas distribution mechanism

Abstract

The utility model discloses a control valve and a linkage type gas distribution mechanism. The control valve comprises a base plate; the fuel gas conveying pipe is fixedly arranged on the base plate; the gas inlet pipe is communicated with one end of the fuel gas conveying pipe; the first gas outlet pipe is communicated with the side wall of the other end of the fuel gas conveying pipe; a first ball valve is arranged on the first air outlet pipe; the gas guide pipe is communicated with the side wall of the middle part of the fuel gas conveying pipe; a second ball valve is arranged on the air guide pipe; the first air receiving pipe is arranged at the bottom of the base plate, and a control valve is arranged in the first air receiving pipe; the linkage assembly is connected with the first ball valve and the control valve. According to the linkage type fuel gas distribution mechanism, linkage opening and closing can be achieved, omission during pipeline closing is avoided, safety is improved, the ratio of fuel gas to air volume can be accurately controlled, efficient combustion under different fire powers is achieved, and the fuel gas utilization efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of gas, in particular to a control valve and a linked gas distribution mechanism. Background Art

[0002] In the field of commercial gas cookers, burner air volume control technology is undergoing continuous research and improvement to improve combustion efficiency and reduce environmental pollution. Existing commercial forced draft gas burners have national standards for exhaust gas emissions and various indicators under high-fire conditions. However, due to the lack of corresponding standards, most products suffer from excessive air volume under low- and medium-fire conditions. This leads to incomplete combustion, excessive carbon monoxide emissions, energy waste, and environmental pollution.

[0003] To address this issue, a conventional air-gas linkage control device for commercial gas stoves has been proposed. This device controls the air volume by placing a manual damper between the blower and the burner, achieving a more precise gas-air mixture ratio and thus improving combustion efficiency. Traditional dampers are often manually adjusted, making them inconvenient to operate and difficult to precisely control. While electronically controlled dampers can achieve automatic control, they suffer from unstable combustion conditions, high failure rates, and high costs. Therefore, precisely controlling the gas-air ratio to achieve efficient combustion at varying power levels, thereby meeting increasingly stringent environmental protection requirements and improving energy efficiency, is a pressing technical challenge in this field. Utility Model Content

[0004] In view of the defects in the prior art, the present invention provides a control valve and a linked gas distribution mechanism to solve the problems raised by the above background technology.

[0005] The utility model provides a linkage type gas distribution mechanism, comprising:

[0006] substrate;

[0007] A gas delivery pipe is fixedly arranged on the base plate;

[0008] An air inlet pipe is connected to one end of the gas delivery pipe;

[0009] A first gas outlet pipe is connected to the side wall of the other end of the gas delivery pipe; a first ball valve is provided on the first gas outlet pipe;

[0010] An air guide pipe is connected to the side wall of the middle portion of the gas delivery pipe; a second ball valve is provided on the air guide pipe;

[0011] A first air connection pipe is provided at the bottom of the base plate, wherein a control valve is provided in the first air connection pipe;

[0012] A linkage assembly connects the first ball valve and the control valve.

[0013] In one embodiment, the linkage assembly includes a first rotating shaft connected to the first ball valve, a handle fixedly connected to the first rotating shaft, a first arc-shaped tooth that rotates synchronously with the first rotating shaft, a second rotating shaft connected to the control valve, and a second arc-shaped tooth that rotates synchronously with the second rotating shaft; the first arc-shaped tooth and the second arc-shaped tooth are meshed.

[0014] In one embodiment, a fan is provided in the middle of the first air connection pipe, and a control valve is provided at one end thereof.

[0015] In one embodiment, the control valve includes: a valve body disposed at one end of the first air connection pipe, the valve body including a cylindrical first shell and a second shell extending downward from the upper surface of the first shell; the second shell is conical, and the upper surface of the first shell is symmetrically provided with a plurality of first air supply ports along the center thereof;

[0016] Valve ports, wherein a plurality of valve ports are symmetrically arranged on the side wall of the first shell along the central axis of the first shell;

[0017] The valve plate includes a third shell adapted to the second shell and a valve plate arranged on the side wall of the third shell adapted to the valve port. The top of the third shell is provided with a second air supply port adapted to the first air supply port, and the other end is fixedly connected to the second rotating shaft.

[0018] In one embodiment, a step for mounting the valve body and a limiting protrusion for positioning the valve body are provided on one side of the step in the first air connection pipe.

[0019] In one embodiment, the first air connection pipe is connected to a side wall of the valve body and is provided with an air inlet.

[0020] In one embodiment, a first solenoid valve is detachably connected to a port of the first air outlet pipe, and a second solenoid valve is detachably connected to a port of the air guide pipe.

[0021] In one embodiment, a second air connection pipe is provided on one side of the first air connection pipe.

[0022] Beneficial effects

[0023] By securing components such as the gas delivery pipe, inlet pipe, outlet pipe, air guide pipe, and air connection pipe to a base plate, this new design achieves a compact layout, facilitating installation and maintenance. The rotating handle drives the first and second curved teeth to engage and rotate, driving the linkage design of the first ball valve and the control valve. This achieves synchronous control of gas and ventilation, preventing omissions when closing the pipes and improving safety.

[0024] This control valve design incorporates multiple valve ports and a valve disc. Rotation of the valve disc opens and closes the ports, precisely controlling the air intake to meet the needs of varying operating conditions. The control valve's second rotating shaft drives the rotation of the third housing, creating an overlap between the first and second air supply ports. This ensures uniform air intake and improves combustion efficiency. Furthermore, by precisely controlling the gas-air mixture ratio, the combustion process is optimized, increasing combustion efficiency and reducing energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the main structure of an embodiment of the present utility model;

[0026] Figure 2 This is a schematic diagram of the explosion structure of the control valve in the utility model;

[0027] Figure 3 This is a schematic structural diagram of the valve body of the present utility model;

[0028] Among them, 1. base plate; 2. gas delivery pipe; 3. air inlet pipe; 4. first air outlet pipe; 5. first ball valve; 6. air guide pipe; 7. second ball valve; 8. first air connection pipe; 9. control valve; 10. linkage assembly; 11. first rotating shaft; 12. handle; 13. first arc-shaped tooth; 14. second rotating shaft; 15. second arc-shaped tooth; 16. fan; 17. valve body; 18. valve port; 19. valve plate; 20. dial; 21. first solenoid valve; 22. second solenoid valve; 23. first shell; 24. second shell; 25. first air supply port; 26. third shell; 27. second air supply port. DETAILED DESCRIPTION

[0029] The present invention will be described in detail below with reference to specific embodiments. The following embodiments will help those skilled in the art further understand the present invention, but are not intended to limit the present invention in any way. It should be noted that a person skilled in the art may make various modifications and improvements without departing from the scope of the present invention. These modifications and improvements are all within the scope of protection of the present invention.

[0030] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do 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 therefore should not be understood as a limitation on the present invention.

[0031] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically defined.

[0032] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0033] Reference Figures 1 to 3 , which is a specific embodiment proposed by the present utility model.

[0034] The utility model provides a linkage type gas distribution mechanism, comprising: a base plate 1, a gas delivery pipe 2, an air inlet pipe 3, a first air outlet pipe 4, an air guide pipe 6, a first air connection pipe 8 and a linkage assembly 10, which has the function of connection control. The gas and ventilation can be controlled in a linkage manner to avoid omissions when closing the pipeline, improve safety, and the operation is simple and convenient. The base plate 1 provides a fixed installation position; the gas delivery pipe 2 is fixedly set on the base plate 1; the air inlet pipe 3 is connected to one end of the gas delivery pipe 2; the first air outlet pipe 4 is connected to the side wall of the other end of the gas delivery pipe 2; a first ball valve 5 is provided on the first air outlet pipe 4; the air guide pipe 6 is connected to the side wall of the middle part of the gas delivery pipe 2; a second ball valve 7 is provided on the air guide pipe 6; the first air connection pipe 8 is provided at the bottom of the base plate 1, and a control valve 9 is provided in the first air connection pipe 8; the linkage assembly 10 connects the first ball valve 5 and the control valve 9.

[0035] In one embodiment, the linkage assembly 10 includes a first rotating shaft 11 connected to the first ball valve 5, a handle 12 fixedly connected to the first rotating shaft 11, a first curved tooth 13 that rotates synchronously with the first rotating shaft 11, a second rotating shaft 14 connected to the control valve 9, and a second curved tooth 15 that rotates synchronously with the second rotating shaft 14. The first curved tooth 13 and the second curved tooth 15 are meshed. Rotating the handle 12 drives the first and second curved teeth 13, 15 to mesh and rotate, thereby achieving synchronous linkage control, resulting in a simple structure.

[0036] In one embodiment, a fan 16 is provided in the middle of the first air connection pipe 8 , and a control valve 9 is provided at one end thereof. The control valve 9 controls the air intake volume of the first air connection pipe 8 .

[0037] In one embodiment, the control valve 9 includes a valve body 17 disposed at one end of the first air connection pipe 8. The valve body 17 includes a cylindrical first shell 23 and a second shell 24 extending downward from the upper surface of the first shell 23. The second shell 24 is conical in shape, and the upper surface of the first shell 23 is symmetrically provided with a plurality of first air supply ports 25 along the center thereof.

[0038] A valve port 18, wherein a plurality of valve ports 18 are symmetrically arranged on the side wall of the first shell 23 along the central axis of the first shell 23; the valve port 18 is an arc-shaped valve port 18 on the side wall of the second shell 24 arranged in a conical shape;

[0039] The valve disc 19 comprises a third housing 26 adapted to fit within the second housing 24, and a valve disc 19 disposed on the sidewall of the third housing 26 and adapted to fit within the valve port 18. The third housing 26 has a second air supply port adapted to fit within the first air supply port 25 at its top end, and its other end is connected to the second rotating shaft 14. The second rotating shaft 14 drives the valve disc 19 to rotate, achieving linkage between the valve disc 19 and the third housing 26. The valve disc 19 is a fan-shaped arc-shaped disc adapted to fit within the valve port 18. The closure of the valve disc 19 and the valve port 18 controls the amount of air entering. Simultaneously, the second rotating shaft 14 drives the third housing 26 to rotate, achieving overlap between the first and second air supply ports, thereby achieving uniform air intake.

[0040] The upper surface of the first shell 23 is symmetrically provided with multiple first air supply ports 25 along its center, which increases the air intake area and helps to improve the air intake efficiency. Multiple valve ports 18 are symmetrically arranged along the central axis of the first shell 23, which helps to achieve uniform airflow distribution. The conical design of the second shell 24 makes the valve port 18 arc-shaped, which allows for smooth airflow and reduces airflow noise and pressure loss. The valve plate 19 is a fan-shaped arc plate, which is adapted to the valve port 18. The air intake volume is controlled by closing the valve plate 19 and the valve port 18 to achieve precise air volume control. The second rotating shaft 14 drives the third shell 26 to rotate, so that the first air supply port 25 and the second air supply port overlap, achieving more uniform air intake, thereby improving combustion efficiency. By rotating the second rotating shaft 14, the user can adjust the position of the valve plate 19 as needed, thereby adjusting the air intake volume to adapt to different combustion requirements.

[0041] In one embodiment, there are two valve ports 18 and two valve plates 19 .

[0042] In one embodiment, a step for installing the valve body 17 and a limiting protrusion for positioning the valve body 17 are provided in the first air connection pipe 8. The installation step and the limiting protrusion are used to fix and limit the valve body 17 to prevent the valve body 17 from rotating. The valve plate 19 is driven to rotate by the second rotating shaft 14 to realize the opening and closing of the valve port 18, thereby controlling the air intake volume.

[0043] In one embodiment, the first air connection pipe 8 is connected to a side wall of the valve body 17 and is provided with an air inlet.

[0044] In one embodiment, a first solenoid valve 21 is detachably connected to a port of the first gas outlet pipe 4 , and a second solenoid valve 22 is detachably connected to a port of the gas guide pipe 6 , so as to facilitate the inflow and outflow of gas.

[0045] In one embodiment, a second air connection pipe is provided on one side of the first air connection pipe 8 .

[0046] Beneficial effects

[0047] The utility model provides a linkage type gas distribution mechanism, which connects the first ball valve 5 and the control valve 9. A handle 12 can be used to open the first ball valve 5 and the control valve 9, and can also be closed when closed.

[0048] The linkage type gas distribution mechanism adopting this structural design can realize linkage switching, avoid omission when closing the pipeline, and improve safety.

[0049] In the present invention, the first solenoid valve 21 and the second solenoid valve 22 are respectively provided on the first outlet pipe 4 and the air guide pipe 6, and the solenoid valves are used to control the gas outlet of the gas pipe, which is simple to operate, easy to use, and has high sealing performance.

[0050] The above content is a further detailed description of the present invention in combination with specific implementation methods, and the specific implementation of the present invention cannot be considered to be limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention.

Claims

1. A control valve, characterized in that: include: The valve body (17) is arranged at one end of the first air connection pipe (8), and the valve body (17) includes a first shell (23) arranged in a cylindrical shape, and a second shell (24) extending downward from the upper surface of the first shell (23); the second shell (24) is arranged in a conical shape, and the upper surface of the first shell (23) is symmetrically provided with a plurality of first air supply ports (25) along the center thereof; Valve ports (18), wherein a plurality of valve ports (18) are symmetrically arranged on a side wall of the first housing (23) along a central axis of the first housing (23); The valve plate (19) includes a third shell (26) adapted to the second shell (24) and a valve plate (19) arranged on the side wall of the third shell (26) and adapted to the valve port (18). The top end of the third shell (26) is provided with a second air supply port adapted to the first air supply port (25), and the other end is fixedly connected to the second rotating shaft (14).

2. The control valve according to claim 1, characterized in that The first air connection pipe (8) is provided with a step for installing the valve body (17) and a limiting protrusion provided on one side of the step for positioning the valve body (17).

3. The control valve according to claim 1, wherein: The first air connection pipe (8) is connected to the side wall of the valve body (17) and is provided with an air inlet.

4. A linked gas distribution mechanism, characterized in that: A control valve according to any one of claims 1 to 3 is used, comprising: a base plate (1); A gas delivery pipe (2) is fixedly arranged on the base plate (1); An air inlet pipe (3) is connected to one end of the gas delivery pipe (2); A first gas outlet pipe (4) is connected to the side wall of the other end of the gas delivery pipe (2); a first ball valve (5) is provided on the first gas outlet pipe (4); An air guide pipe (6) is connected to the side wall of the middle portion of the gas delivery pipe (2); a second ball valve (7) is provided on the air guide pipe (6); A linkage assembly (10) connecting the first ball valve (5) and the control valve (9); The first air connection pipe (8) is arranged at the bottom of the base plate (1), and the control valve (9) is arranged in the first air connection pipe (8).

5. The linkage type gas distribution mechanism according to claim 4, characterized in that: The linkage assembly (10) comprises a first rotating shaft (11) connected to the first ball valve (5), a handle (12) fixedly connected to the first rotating shaft (11), a first arc-shaped tooth (13) rotating synchronously with the first rotating shaft (11), a second rotating shaft (14) connected to the control valve (9), and a second arc-shaped tooth (15) rotating synchronously with the second rotating shaft (14); the first arc-shaped tooth (13) and the second arc-shaped tooth (15) are meshed.

6. The linkage type gas distribution mechanism according to claim 4, characterized in that: The middle portion of the first air connection pipe (8) is connected to a fan (16), and one end is connected to a control valve (9).

7. The linked gas distribution mechanism according to claim 4, characterized in that: A first electromagnetic valve (21) is detachably connected to the port of the first air outlet pipe (4), and a second electromagnetic valve (22) is detachably connected to the port of the air guide pipe (6).

8. The linked gas distribution mechanism according to claim 4, characterized in that: One side of the first air connection pipe (8) is connected to a second air connection pipe.

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