Combination gas valve with linear flow control function and cut-off function

Abstract

The gas combination valve with the linear flow control function and the cut-off function comprises a valve body module, a driving module and a linear flow adjusting module, the driving module comprises a machine box, a circuit board, a motor and a driving rod, the circuit board, the motor and the driving rod are installed on the machine box, and the machine box is fixedly installed on the top of a valve cover. The circuit board is electrically connected with the motor, and one end of the driving rod is installed at the driving end of the motor. The linear flow adjusting module comprises a fixing unit and a rotating unit. According to the fuel gas combination valve with the linear flow control function and the cut-off function, linkage is conducted through the valve body module, the driving module and the linear flow adjusting module, the rotating angle of each adjusting blade is adjusted through the motor, and therefore the size of the vent hole diameter is linearly adjusted, and precise flow regulation and control are achieved; the device has the advantages of stable structure, high precision, high practicability and the like.

Description

Technical Field

[0001] The invention belongs to the technical field of flow regulation, and in particular relates to a gas combination valve with linear flow control and cut-off functions. Background Art

[0002] In industrial production, gas flow control valves are critical equipment for controlling gas flow. Existing flow control devices mostly achieve flow control by adjusting the valve opening, but this approach has numerous limitations. The flow regulation characteristics of traditional control valves are often nonlinear, making precise control difficult at low flow rates. This results in low flow control accuracy and is unable to meet the needs of some processes requiring extremely high flow accuracy. Summary of the Invention

[0003] The main purpose of the present invention is to provide a gas combination valve with linear flow control function and cut-off function, which is linked by a valve body module, a drive module and a linear flow regulation module. The rotation angle of each regulating blade is adjusted by a motor, thereby linearly adjusting the size of the ventilation aperture to achieve precise control of the flow rate. It has the advantages of stable structure, high precision and high practicality.

[0004] To achieve the above objectives, the present invention provides a gas combination valve with linear flow control and shut-off functions, comprising a valve body module, a drive module, and a linear flow regulation module, wherein the drive module is mounted on top of the valve body module and the linear flow regulation module is built into the valve body module, wherein:

[0005] The valve body module includes a main body and a valve cover, and the valve cover is fixedly installed on the top of the main body;

[0006] The driving module includes a chassis and a circuit board, a motor and a driving rod mounted on the chassis, wherein the chassis is fixedly mounted on the top of the valve cover, the circuit board is electrically connected to the motor and one end of the driving rod is mounted on the driving end of the motor;

[0007] The linear flow regulation module includes a fixed unit and a rotating unit, wherein:

[0008] The fixing unit includes a first fixed plate and a second fixed plate, wherein the first fixed plate is located on top of the second fixed plate;

[0009] The rotating unit includes a dial, a first rotating disk, a second rotating disk, and a vent adjustment member. The other end of the driving rod passes through the valve cover and is fixedly connected to the dial. The vent adjustment member is located between the first rotating disk and the second rotating disk and is provided with a plurality of adjustment blades. The tips of the adjustment blades form a flow vent. The first fixed disk is located on a side of the first rotating disk away from the vent adjustment member, and the second fixed disk is located on a side of the second rotating disk away from the vent adjustment member.

[0010] When linear flow control adjustment is required, the motor receives the control signal (increase or decrease signal) output by the circuit board, so that the motor drives the drive rod to rotate and drives the dial to rotate at the same time, thereby driving the first turntable and the second turntable to rotate between the first fixed plate and the second fixed plate at the same time, and drives the vent adjustment member while the first turntable and the second turntable rotate, and drives each adjustment blade to rotate to achieve the aperture of the flow vent that matches the control signal (to achieve precise flow adjustment, and when each tip rotates to a certain angle, the flow vent is closed to achieve the cut-off function).

[0011] As a further preferred technical solution of the above technical solution, a plurality of first fixing holes and a plurality of first arc-shaped sliding holes are provided on the outer circumference of the first fixed plate, a first vent hole is provided at the center of the first fixed plate, and a plurality of second arc-shaped sliding holes are distributed around the first vent hole;

[0012] A plurality of first fixing columns are provided on the top of the outer periphery of the second fixed plate, a second vent hole is provided at the center of the second fixed plate and a plurality of arc-shaped sliding grooves are distributed around the second vent hole, the first fixing columns are installed in the first fixing holes, and the second arc-shaped sliding holes are aligned one by one with the arc-shaped sliding grooves.

[0013] As a further preferred technical solution of the above technical solution, a connecting hole is provided in the middle of the dial and a plurality of dial holes are provided on the periphery of the dial;

[0014] A plurality of shifting blocks are provided on the top of the outer periphery of the first turntable, and a plurality of second fixing columns are provided on the bottom of the outer periphery of the first turntable. A third vent hole is provided at the center of the first turntable, and a plurality of first strip-shaped sliding holes are distributed around the third vent hole. The shifting blocks pass through the first arc-shaped sliding holes and are installed in the shifting holes.

[0015] The second turntable is located at the bottom of the first turntable and has a plurality of second fixing holes on the top of the outer periphery of the second turntable. The second fixing posts are installed in the second fixing holes. A fourth vent hole is provided in the center of the second turntable and a plurality of second strip-shaped sliding holes are distributed around the fourth vent hole.

[0016] The tail end of the regulating blade is provided with a first limit block and a second limit block, the first limit block is installed in the second arc-shaped slide hole after passing through the first strip slide hole, and the second limit block is installed in the arc-shaped slide groove after passing through the second strip slide hole.

[0017] As a further preferred technical solution of the above technical solution, the first fixing holes and the first arc-shaped sliding holes are alternately distributed, and the second arc-shaped sliding hole is located between the first vent hole and the first arc-shaped sliding hole; the first strip sliding hole and the second strip sliding hole are aligned one by one.

[0018] As a further preferred technical solution of the above technical solution, the shifting member is located on a side of the first fixed plate away from the first rotating plate, and a gasket is provided between the shifting member and the first fixed plate.

[0019] As a further preferred technical solution of the above technical solution, the linear flow control adjustment is specifically implemented as follows:

[0020] The driving rod drives the dial to rotate. Since the dial block is installed in the dial hole, the first turntable and the second turntable are driven to rotate at the same time. When the first turntable and the second turntable rotate, the first strip sliding hole and the second strip sliding hole respectively drive the first limit block and the second limit block of the adjusting blade to move, so that all the adjusting blades rotate. During the rotation process, the first limit block rotates steadily in the second arc sliding hole and the second limit block rotates steadily in the arc sliding groove (improving structural stability); the aperture size of the flow vent formed between the tips of each adjusting blade increases or decreases linearly with the rotation direction, thereby realizing linear flow control. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the present invention.

[0022] Figure 2 It is a cross-sectional view of the present invention.

[0023] Figure 3 It is a structural schematic diagram of the linear flow regulation module of the present invention.

[0024] Figure 4 It is an exploded view of the linear flow regulation module of the present invention.

[0025] Figure 5 It is a cross-sectional view of the linear flow regulating module of the present invention.

[0026] Figure 6 Schematic diagram of the structure of the rotating unit of the present invention (with the dial hidden).

[0027] Reference numerals include: 100, valve body module; 110, main body; 111, air inlet end; 112, air outlet end; 120, valve cover; 200, drive module; 210, chassis; 220, circuit board; 230, motor; 240, drive rod; 300, linear flow adjustment module; 310, fixing unit; 311, first fixed plate; 3111, first fixing hole; 3112, first arc-shaped sliding hole; 3113, first vent hole; 3114, second arc-shaped sliding hole; 312, second fixed plate; 3121, first fixing column; 3122, second vent hole; 31 23. Arc-shaped slide groove; 320. Rotating unit; 321. Dial piece; 3211. Connecting hole; 3212. Dial hole; 322. First turntable; 3221. Dial block; 3222. Second fixing column; 3223. Third vent hole; 3224. First strip-shaped slide hole; 323. Second turntable; 3231. Second fixing hole; 3232. Fourth vent hole; 3233. Second strip-shaped slide hole; 324. Vent adjustment piece; 3241. Adjusting blade; 3242. Flow vent; 3243. First limit block; 3244. Second limit block; 330. Gasket. DETAILED DESCRIPTION

[0028] The following description is intended to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are for illustrative purposes only, and those skilled in the art will readily appreciate other obvious variations. The basic principles of the present invention defined in the following description may be applied to other embodiments, variations, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the present invention.

[0029] In the preferred embodiment of the present invention, those skilled in the art should note that the gas and the like involved in the present invention may be regarded as prior art.

[0030] Preferred embodiment.

[0031] like Figure 1-6 As shown, the present invention discloses a gas combination valve with linear flow control function and cut-off function, comprising a valve body module 100, a drive module 200 and a linear flow regulating module 300, wherein the drive module 200 is mounted on the top of the valve body module 100 and the linear flow regulating module 300 is built into the valve body module 100, wherein:

[0032] The valve body module 100 includes a main body 110 and a valve cover 120 , and the valve cover 120 is fixedly installed on the top of the main body 100 ;

[0033] The driving module 200 includes a chassis 210 and a circuit board 220, a motor 230, and a driving rod 240 mounted on the chassis 210. The chassis 210 is fixedly mounted on the top of the valve cover 120. The circuit board 230 is electrically connected to the motor 240, and one end of the driving rod 240 is mounted on the driving end of the motor 230.

[0034] The linear flow regulating module 300 includes a fixing unit 310 and a rotating unit 320, wherein:

[0035] The fixing unit 310 includes a first fixing plate 311 and a second fixing plate 312 , wherein the first fixing plate 311 is located on top of the second fixing plate 312 ;

[0036] The rotating unit 320 includes a dial 321, a first rotating disk 322, a second rotating disk 323, and a vent adjustment member 324. The other end of the driving rod 240 passes through the valve cover 120 and is fixedly connected to the connecting hole 3211 of the dial 321. The vent adjustment member 324 is located between the first rotating disk 322 and the second rotating disk 323 and is provided with a plurality of (circular) adjusting blades 3241. The tips of the adjusting blades 3241 form a flow vent 3242. The first fixed disk 311 is located on a side of the first rotating disk 322 away from the vent adjustment member 324. The second fixed disk 312 is located on a side of the second rotating disk 323 away from the vent adjustment member 324.

[0037] When linear flow control adjustment is required, the motor 230 receives a control signal (increase or decrease signal) output by the circuit board 220, so that the motor 230 drives the driving rod 240 to rotate and drives the dial 321 to rotate at the same time, thereby driving the first rotating disk 322 and the second rotating disk 323 to rotate between the first fixed disk 311 and the second fixed disk 312 at the same time, and drives the vent adjustment member 324 while the first rotating disk 322 and the second rotating disk 323 rotate, and drives each adjustment blade 3241 to rotate so as to achieve the aperture of the flow vent 3242 that matches the control signal (to achieve precise flow adjustment, and when each tip rotates to a certain angle so that the flow vent is closed, a cut-off function is achieved);

[0038] Specifically, a plurality of first fixing holes 3111 and a plurality of first arc-shaped sliding holes 3112 are provided on the outer periphery of the first fixed plate 311. A first vent hole 3113 is provided at the center of the first fixed plate 311 and a plurality of second arc-shaped sliding holes 3114 are distributed around the first vent hole 3113.

[0039] A plurality of first fixing columns 3121 are provided at the top of the outer periphery of the second fixed plate 312, a second ventilation hole 3122 is provided at the center of the second fixed plate 312 and a plurality of arc-shaped sliding grooves 3123 are distributed around the second ventilation hole 3122, the first fixing columns 3121 (one-to-one correspondence from bottom to top) are installed in the first fixing holes 3111, and the second arc-shaped sliding holes 3114 are aligned one-to-one with the arc-shaped sliding grooves 3123.

[0040] More specifically, a connecting hole 3211 is provided in the middle of the shifting member 321 (for connecting to a driving rod, thereby driving the entire shifting member to rotate) and a plurality of shifting holes 3212 are provided on the outer periphery of the shifting member 321;

[0041] A plurality of shifting blocks 3221 are provided at the top of the outer periphery of the first rotating disk 322, and a plurality of second fixing posts 3222 are provided at the bottom of the outer periphery of the first rotating disk 322. A third vent hole 3223 is provided at the center of the first rotating disk 322, and a plurality of first strip-shaped sliding holes 3224 are distributed around the third vent hole 3223. The shifting blocks 3221 pass through the first arc-shaped sliding hole 3112 and are installed in the shifting hole 3212.

[0042] The second turntable 323 is located at the bottom of the first turntable 322 and has a plurality of second fixing holes 3231 defined on the top of the outer periphery of the second turntable 323. The second fixing posts 3222 are installed in the second fixing holes 3231 (one-to-one from top to bottom) to fix the first and second turntables. A fourth ventilation hole 3232 is defined in the center of the second turntable 3233 and a plurality of second strip-shaped sliding holes 3233 are distributed around the fourth ventilation hole 3232.

[0043] The tail end of the adjusting blade 324 is provided with a first limit block 3243 and a second limit block 3244. The first limit block 3243 (upward) passes through the first strip sliding hole 3224 and is installed in the second arc-shaped sliding hole 3114. The second limit block 3244 (downward) passes through the second strip sliding hole 3233 and is installed in the arc-shaped sliding groove 3123 (so that the first turntable and the second turntable can stably drive each adjusting blade to rotate when moving, thereby adjusting the size of the flow vent aperture).

[0044] Furthermore, the first fixing holes 3111 and the first arc-shaped sliding holes 3112 are alternately distributed, and the second arc-shaped sliding holes 3114 are located between the first ventilation holes 3113 and the first arc-shaped sliding holes 3112; the first strip-shaped sliding holes 3224 and the second strip-shaped sliding holes 3233 are aligned one by one.

[0045] Furthermore, the shifting member 321 is located on a side of the first fixed plate 311 away from the first rotating plate 322 , and a gasket 330 is provided between the shifting member 321 and the first fixed plate 311 .

[0046] Preferably, the main body 110 is provided with an air inlet end 111 and an air outlet end 112. The gas enters from the air inlet end 111 and then passes through the flow vent hole 3242 and is output from the air outlet end 112. The linear flow control adjustment is specifically implemented as follows: the driving rod 240 drives the dial 321 to rotate. Since the dial block 3221 is installed in the dial hole 3212, the first rotary disk 322 is driven to rotate and the second rotary disk 323 is driven to rotate at the same time. When the first rotary disk 322 and the second rotary disk 323 rotate, the first strip slide hole 3224 and the second strip slide hole 322 are rotated. 33 respectively drives the first limit block 3243 and the second limit block 3244 of the adjusting blade 3241 to move, so that all the adjusting blades 3241 rotate. During the rotation, the first limit block 3243 rotates steadily in the second arc-shaped slide hole 3114 and the second limit block 3244 rotates steadily in the arc-shaped slide groove 3123 (to improve the structural stability); the aperture size of the flow vent 3242 formed between the tips of each adjusting blade 3241 increases or decreases linearly with the rotation direction, thereby realizing linear flow control.

[0047] It is worth mentioning that the technical features such as gas involved in the patent application of this invention should be regarded as prior art. The specific structure, working principle and possible control method and spatial layout method of these technical features can be selected by conventional means in the field, and should not be regarded as the inventive point of this patent. This patent will not be further elaborated.

[0048] For those skilled in the art, it is still possible to modify the technical solutions described in the aforementioned embodiments, or to make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A gas combination valve with linear flow control function and cut-off function, characterized in that: It includes a valve body module, a drive module and a linear flow regulation module, wherein the drive module is installed on the top of the valve body module and the linear flow regulation module is built into the valve body module, wherein: The valve body module includes a main body and a valve cover, and the valve cover is fixedly installed on the top of the main body; The driving module includes a chassis and a circuit board, a motor and a driving rod mounted on the chassis, wherein the chassis is fixedly mounted on the top of the valve cover, the circuit board is electrically connected to the motor and one end of the driving rod is mounted on the driving end of the motor; The linear flow regulation module includes a fixed unit and a rotating unit, wherein: The fixing unit includes a first fixed plate and a second fixed plate, wherein the first fixed plate is located on top of the second fixed plate; The rotating unit includes a dial, a first rotating disk, a second rotating disk, and a vent adjustment member. The other end of the driving rod passes through the valve cover and is fixedly connected to the dial. The vent adjustment member is located between the first rotating disk and the second rotating disk and is provided with a plurality of adjustment blades. The tips of the adjustment blades form a flow vent. The first fixed disk is located on a side of the first rotating disk away from the vent adjustment member, and the second fixed disk is located on a side of the second rotating disk away from the vent adjustment member. When linear flow control adjustment is required, the motor receives the control signal output by the circuit board, so that the motor drives the drive rod to rotate and drives the dial to rotate at the same time, thereby driving the first turntable and the second turntable to rotate between the first fixed plate and the second fixed plate at the same time, and drives the vent adjustment member while the first turntable and the second turntable rotate, and drives each adjustment blade to rotate to achieve the aperture of the flow vent that matches the control signal.

2. A gas combination valve with linear flow control function and cut-off function according to claim 1, characterized in that: A plurality of first fixing holes and a plurality of first arc-shaped sliding holes are provided on the outer periphery of the first fixed plate, a first vent hole is provided at the center of the first fixed plate, and a plurality of second arc-shaped sliding holes are distributed around the first vent hole; A plurality of first fixing columns are provided on the top of the outer periphery of the second fixed plate, a second vent hole is provided at the center of the second fixed plate and a plurality of arc-shaped sliding grooves are distributed around the second vent hole, the first fixing columns are installed in the first fixing holes, and the second arc-shaped sliding holes are aligned one by one with the arc-shaped sliding grooves.

3. A gas combination valve with linear flow control function and cut-off function according to claim 2, characterized in that: A connecting hole is provided in the middle of the dial and a plurality of dial holes are provided on the periphery of the dial; A plurality of shifting blocks are provided on the top of the outer periphery of the first turntable, and a plurality of second fixing columns are provided on the bottom of the outer periphery of the first turntable. A third vent hole is provided at the center of the first turntable, and a plurality of first strip-shaped sliding holes are distributed around the third vent hole. The shifting blocks pass through the first arc-shaped sliding holes and are installed in the shifting holes. The second turntable is located at the bottom of the first turntable and has a plurality of second fixing holes on the top of the outer periphery of the second turntable. The second fixing posts are installed in the second fixing holes. A fourth vent hole is provided in the center of the second turntable and a plurality of second strip-shaped sliding holes are distributed around the fourth vent hole. The tail end of the regulating blade is provided with a first limit block and a second limit block, the first limit block is installed in the second arc-shaped slide hole after passing through the first strip slide hole, and the second limit block is installed in the arc-shaped slide groove after passing through the second strip slide hole.

4. A gas combination valve with linear flow control function and cut-off function according to claim 3, characterized in that: The first fixing holes and the first arc-shaped sliding holes are alternately distributed, and the second arc-shaped sliding hole is located between the first vent hole and the first arc-shaped sliding hole; the first strip-shaped sliding holes and the second strip-shaped sliding holes are aligned one by one.

5. A gas combination valve with linear flow control function and cut-off function according to claim 4, characterized in that: The shifting member is located on a side of the first fixed disk away from the first rotating disk, and a gasket is provided between the shifting member and the first fixed disk.

6. A gas combination valve with linear flow control function and cut-off function according to claim 5, characterized in that: The linear flow control regulation is specifically implemented as follows: The driving rod drives the dial to rotate. Since the dial block is installed in the dial hole, the first turntable and the second turntable are driven to rotate at the same time. When the first turntable and the second turntable rotate, the first strip sliding hole and the second strip sliding hole respectively drive the first limit block and the second limit block of the adjusting blade to move, so that all the adjusting blades rotate. During the rotation process, the first limit block rotates steadily in the second arc sliding hole and the second limit block rotates steadily in the arc sliding groove; the aperture size of the flow vent formed between the tips of each adjusting blade increases or decreases linearly with the rotation direction, thereby realizing linear flow control.

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