A proportional valve for gas

Abstract

The utility model relates to the technical field of proportional valves for gas, and in particular to a proportional valve for gas, comprising a proportional valve for gas and a connecting pipe, wherein the outer side of the proportional valve for gas is fixedly connected to a plurality of connecting pipes, and the upper and lower sides of the proportional valve for gas are fixedly connected to a plurality of control boxes, and an electromagnetic coil is arranged on the outer side of the control box. The user moves the sleeve block to the right, and the sleeve block drives the connecting rod to rotate, and the connecting rod drives the slider to move outward, and at the same time, the slider drives the spring to stretch, and the slider drives the U-shaped rod to move outward, and the U-shaped rod drives the limit block to move outward, and then the fixed block on the outer side of the external connecting pipe is inserted into the inner wall of the connecting seat, and then the sleeve block is released, and the elastic force of the spring makes the limit block fit with the groove of the fixed block, so as to realize the connection between the proportional valve for gas and the external connecting pipe, and in this way, the original connection method is replaced, making it more convenient to connect the proportional valve for gas and the external connecting pipe.

Description

Technical Field

[0001] The utility model relates to the technical field of proportional valves for gas, in particular to a proportional valve for gas. Background Art

[0002] The gas proportional valve is a regulating valve for the ratio of gas to air. By adjusting the valve, the gas can be fully burned, which saves energy and is beneficial to the environment. The gas proportional valve has always been the core component of the constant temperature gas water heater. Its main function is to stabilize the output pressure of the proportional valve and adjust the output pressure of the proportional valve according to the input current. The quality of the gas proportional valve directly affects the use and safety of the constant temperature gas water heater. It is the core component of the gas water heater.

[0003] For example, a gas proportional valve with the authorization announcement number CN219282460U, the above document uses the matching setting between the valve assembly, the valve cover assembly, the moving assembly and the reset assembly, and uses the moving assembly to move the valve cover assembly inside the valve assembly to control the flow rate of the gas discharged from the filter, thereby achieving the effect of automatic adjustment of the gas ratio, and the reset assembly can quickly reset the valve cover assembly when the moving assembly stops driving the valve cover assembly, so that the valve cover assembly can quickly seal the valve assembly, thereby ensuring the sealing efficiency and sealing effect of the valve cover assembly on the valve assembly. However, during the use of the gas proportional valve in the above document, the inlet and outlet pipes of the gas proportional valve and the external connecting pipe are connected by flanges with multiple bolts. This fixing method uses more bolts, and each bolt is displaced one thread when it is rotated one circle, which makes the operation of connecting the gas proportional valve to the outer wall more cumbersome, so it is not convenient to connect the gas proportional valve to the external connecting pipe. Utility Model Content

[0004] The utility model aims to solve the problem that it is inconvenient to connect the gas proportional valve with an external connecting pipe, and proposes a gas proportional valve.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A gas proportional valve is designed, comprising a gas proportional valve and a connecting pipe, wherein the outer side of the gas proportional valve is fixedly connected to a plurality of connecting pipes, the upper and lower sides of the gas proportional valve are fixedly connected to a plurality of control boxes, an electromagnetic coil is arranged on the outer side of the control box, the outer wall of the connecting pipe is fixedly connected to a connecting seat, the inner wall of the connecting seat is fixedly connected to a plurality of sealing gaskets, the end of the connecting pipe is fitted with an external connecting pipe, the outer wall of the external connecting pipe is fixedly connected to a fixing block, the outer wall of the fixing block is fitted with the connecting seat, the inner wall of the sealing gasket is tightly abutted against the fixing block, and a fixing structure is arranged on the outer side of the connecting pipe.

[0007] Preferably, the fixed structure includes a sleeve block, the inner wall of the sleeve block is slidably connected to the connecting pipe, the outer side of the sleeve block is rotatably connected to multiple connecting rods through a pin shaft, the end of the connecting rod is rotatably connected to a slider through a pin shaft, the inner end of the slider is fixedly connected to one end of a spring, the outer end of the slider is fixedly connected to one end of a U-shaped rod, and the other end of the U-shaped rod is fixedly connected to a limit block.

[0008] Preferably, both sides of the outer wall of the U-shaped rod are slidably connected to the connecting seat, and the outer wall of the sliding block is slidably connected to the connecting seat.

[0009] Preferably, the middle portion of the outer wall of the limiting block is slidably connected to the connecting seat, and the inner side of the outer wall of the limiting block is in contact with the fixing block.

[0010] Preferably, the other ends of the plurality of springs are fixedly connected to the connecting seat.

[0011] Preferably, the inner wall of the connecting pipe at the top is fixedly connected to the filter screen.

[0012] The utility model provides a proportional valve for gas, which has the following beneficial effects: the user moves the sleeve block to the right, the sleeve block drives the connecting rod to rotate, the connecting rod drives the slider to move outward, and at the same time the slider drives the spring to stretch, the slider drives the U-shaped rod to move outward, the U-shaped rod drives the limit block to move outward, and then the fixed block on the outside of the external connecting pipe is inserted into the inner wall of the connecting seat and then the sleeve block is released, the elastic force of the spring makes the limit block fit into the groove of the fixed block, thereby realizing the connection between the proportional valve for gas and the external connecting pipe, replacing the original connection method in this way, making it more convenient to connect the proportional valve for gas to the external connecting pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the main structure of the utility model;

[0015] Figure 3 It is a side view structural schematic diagram of the utility model;

[0016] Figure 4 for Figure 3 Schematic diagram of the structure of A.

[0017] In the figure: 1. proportional valve for gas, 2. connecting pipe, 3. fixed structure, 301. sleeve block, 302. connecting rod, 303. slider, 304. spring, 305. U-shaped rod, 306. limit block, 4. filter screen, 5. connecting seat, 6. fixing block, 7. external connecting pipe, 8. sealing gasket, 9. electromagnetic coil, 10. control box. DETAILED DESCRIPTION

[0018] The utility model is further described below in conjunction with the accompanying drawings:

[0019] Embodiment 1:

[0020] See attached Figure 1-4 In the present embodiment, a proportional valve for gas includes a proportional valve 1 for gas and a connecting pipe 2. The outer side of the proportional valve 1 for gas is fixedly connected to a plurality of connecting pipes 2. The upper and lower sides of the proportional valve 1 for gas are fixedly connected to a plurality of control boxes 10. An electromagnetic coil 9 is arranged on the outer side of the control box 10. The outer wall of the connecting pipe 2 is fixedly connected to a connecting seat 5. The inner wall of the connecting seat 5 is fixedly connected to a plurality of sealing gaskets 8. The end of the connecting pipe 2 is fitted with an external connecting pipe 7. The outer wall of the external connecting pipe 7 is fixedly connected to a fixed block 6. The outer wall of the fixed block 6 is fitted with the connecting seat 5. The sealing performance between the fixed block 6 and the connecting seat 5 is increased by the sealing gasket 8. The inner wall of the sealing gasket 8 is tightly pressed against the fixed block 6. A fixing structure 3 is arranged on the outer side of the connecting pipe 2.

[0021] The fixed structure 3 includes a sleeve block 301, the inner wall of the sleeve block 301 is slidably connected to the connecting pipe 2, the outer side of the sleeve block 301 is rotatably connected to multiple connecting rods 302 through a pin shaft, the end of the connecting rod 302 is rotatably connected to the slider 303 through a pin shaft, the inner end of the slider 303 is fixedly connected to one end of the spring 304, the outer wall of the sleeve block 301 is processed relatively roughly, which increases the friction between the user's hand and the sleeve block 301, and is convenient for the user to manually move the sleeve block 301. The user moves the sleeve block 301 to the right, the sleeve block 301 drives the connecting rod 302 to rotate, the connecting rod 302 drives the slider 303 to move outward, and at the same time the slider 303 drives the spring 304 to stretch, the slider 303 drives the U-shaped rod 305 to move outward, and the U-shaped rod 305 drives the limit block 306 to move outward. After that, the fixing block 6 on the outside of the external connecting pipe 7 is inserted into the inner wall of the connecting seat 5 and then the sleeve block 301 is loosened. The elastic force of the spring 304 makes the limit block 306 fit with the groove of the fixed block 6, thereby realizing the connection between the gas proportional valve 1 and the external connecting pipe. The outer end of the slider 303 is fixedly connected to one end of the U-shaped rod 305, and the other end of the U-shaped rod 305 is fixedly connected to the limit block 306. Both sides of the outer wall of the U-shaped rod 305 are slidably connected to the connecting seat 5, the outer wall of the slider 303 is slidably connected to the connecting seat 5, the middle part of the outer wall of the limit block 306 is slidably connected to the connecting seat 5, the inner side of the outer wall of the limit block 306 is fitted with the fixed block 6, the other ends of the multiple springs 304 are fixedly connected to the connecting seat 5, and the inner wall of the top connecting pipe 2 is fixedly connected to the filter screen 4.

[0022] Working principle:

[0023] When connecting the gas proportional valve to the external connecting pipe, the user moves the sleeve block 301 to the right, and the sleeve block 301 drives the connecting rod 302 to rotate. The connecting rod 302 drives the slider 303 to move outward. At the same time, the slider 303 drives the spring 304 to stretch, and the slider 303 drives the U-shaped rod 305 to move outward. The U-shaped rod 305 drives the limit block 306 to move outward, and then the fixing block 6 on the outside of the external connecting pipe 7 is inserted into the inner wall of the connecting seat 5 and then the sleeve block 301 is released. The elastic force of the spring 304 makes the limit block 306 fit with the groove of the fixing block 6, thereby realizing the connection between the gas proportional valve 1 and the external connecting pipe. In this way, the original connection method is replaced, making it more convenient to connect the gas proportional valve to the external connecting pipe.

[0024] Although the present invention has been shown and described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein within the scope of the claims.

Claims

1. A gas proportional valve, comprising a gas proportional valve (1) and a connecting pipe (2), wherein the outer side of the gas proportional valve (1) is fixedly connected to a plurality of connecting pipes (2), characterized in that: The upper and lower sides of the gas proportional valve (1) are fixedly connected to a plurality of control boxes (10), an electromagnetic coil (9) is arranged on the outer side of the control box (10), the outer wall of the connecting pipe (2) is fixedly connected to the connecting seat (5), the inner wall of the connecting seat (5) is fixedly connected to a plurality of sealing gaskets (8), the end of the connecting pipe (2) is fitted with the external connecting pipe (7), the outer wall of the external connecting pipe (7) is fixedly connected to the fixing block (6), the outer wall of the fixing block (6) is fitted with the connecting seat (5), the inner wall of the sealing gasket (8) is tightly abutted against the fixing block (6), and a fixing structure (3) is arranged on the outer side of the connecting pipe (2).

2. A gas proportional valve according to claim 1, characterized in that: The fixing structure (3) comprises a sleeve block (301), the inner wall of the sleeve block (301) is slidably connected to the connecting pipe (2), the outer side of the sleeve block (301) is rotatably connected to a plurality of connecting rods (302) via a pin shaft, the end of the connecting rod (302) is rotatably connected to a slider (303) via a pin shaft, the inner end of the slider (303) is fixedly connected to one end of a spring (304), the outer end of the slider (303) is fixedly connected to one end of a U-shaped rod (305), and the other end of the U-shaped rod (305) is fixedly connected to a limit block (306).

3. A gas proportional valve according to claim 2, characterized in that: Both sides of the outer wall of the U-shaped rod (305) are slidably connected to the connecting seat (5), and the outer wall of the sliding block (303) is slidably connected to the connecting seat (5).

4. A gas proportional valve according to claim 2, characterized in that: The middle part of the outer wall of the limiting block (306) is slidably connected to the connecting seat (5), and the inner side of the outer wall of the limiting block (306) is in contact with the fixing block (6).

5. A gas proportional valve according to claim 2, characterized in that: The other ends of the plurality of springs (304) are fixedly connected to the connecting seat (5).

6. A gas proportional valve according to claim 1, characterized in that: The inner wall of the connecting pipe (2) at the top is fixedly connected to the filter screen (4).

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