Controller capable of adjusting gas flow

Abstract

The utility model relates to the technical field of gas adjusting controllers, in particular to a controller capable of adjusting gas flow. The device comprises a control pipe, mounting blocks are fixed to the two ends of the outer side of the control pipe, bolts are connected to the inner sides of the two mounting blocks in a sliding mode, an adjusting structure is arranged on one side of the top of the control pipe, and a rotating structure is arranged on the outer side of the adjusting structure. According to the controller capable of adjusting the gas flow, through the design of the adjusting structure and the rotating structure, the device can control repetitive flow very stably, flow fluctuation caused by environmental factors can be reduced through the precise structural design, and the stability of flow control is ensured; and the adjusting structure can quickly respond to the demand of flow change, so that instant flow adjustment is realized, which is of great significance to scenes needing to quickly respond to the flow change, such as emergency shutdown and flow adjustment.

Description

Technical Field

[0001] This utility model relates to the field of gas control technology, and in particular to a controller that can adjust gas flow rate. Background Technology

[0002] Adjustable gas flow controllers, also known as mass flow controllers (MFCs), are indispensable key equipment in industries such as semiconductors, photovoltaics, and vacuum coating. With the increasing demand for high-precision, high-stability gas flow control in these industries, MFC technology has matured significantly. MFCs utilize advanced MEMS flow chip technology, combined with high-precision digital control circuits and algorithms, to achieve high-precision, high-stability control over a wide temperature range. Their features include high signal-to-noise ratio, fast response speed, excellent rangeability, and independence from installation location, providing a reliable and applicable solution for gas supply systems in industrial environments and laboratories.

[0003] For example, Chinese utility model patent (CN215987033U) discloses a gas flow controller that solves the following problems: In the use of some traditional devices, a pressure transmitter is set on the valve body to convert parameters such as gas pressure in the valve body into electric signals. The electric signals are transmitted to the process controller, and the process controller sends instructions to the actuator. The actuator adjusts parameters such as gas flow rate and density in the valve body, thereby achieving the effect of precise control of gas flow rate. The above devices are controlled by circuits. When the device is powered off, it is easy for the device to fail to open and close in time, resulting in low reliability. At the same time, the device is not convenient for controlling the flow rate, and its practicality is low.

[0004] The device includes a mounting base and a housing. The housing is fixedly connected to the mounting base. An isolation plate is fixedly connected inside the housing, and a vent hole is provided on the isolation plate. A rotating hole is provided on the housing, and a rotating rod is rotatably connected inside the rotating hole. A nut is connected to the top of the rotating rod, and a baffle is connected to the bottom of the rotating rod inside the housing. An adjusting plate is connected to the bottom of the baffle through the isolation plate via a connecting rod. A spring is sleeved on the connecting rod. The adjusting plate is provided with multiple adjusting holes. The adjusting plate slides against the inner wall of the housing. The housing includes an upper shell cover and a lower shell cover, which are connected to each other by multiple bolts. An exhaust port is provided on the upper shell cover, and an exhaust pipe is connected inside the exhaust port. This facilitates adjustment of the device when the power is off, and also facilitates control of the gas flow rate, improving reliability and practicality.

[0005] When using the above technology, the following technical problems were found in the existing technology: the device lacks a precise adjustment structure, which leads to deviations in gas flow, thereby affecting the accuracy of production or experimental results. To address this, we designed an adjustable gas flow controller to provide another technical solution to the above technical problems. Utility Model Content

[0006] Therefore, it is necessary to provide an adjustable gas flow controller to address the aforementioned technical problems and solve the issues raised in the background section.

[0007] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0008] A controller for adjustable gas flow includes a control tube, with mounting blocks fixed at both ends of the outer side of the control tube, bolts slidably connected to the inner sides of the two mounting blocks, an adjustment structure provided on one side of the top of the control tube, and a rotating structure provided on the outer side of the adjustment structure.

[0009] As a preferred embodiment of the adjustable gas flow controller provided by this utility model, the adjustment structure includes a lifting mechanism and a plugging mechanism.

[0010] In a preferred embodiment of the adjustable gas flow controller provided by this utility model, the plugging mechanism includes a rotating column, a turntable, a patch, a slide rod, and a limit cap. The rotating column is rotatably connected to one side of the top of the control tube, the turntable is fixed to the top of the rotating column, the slide rod is slidably connected to one end of the inner side of the turntable, the limit cap is fixed to the top of the slide rod, and the patch is fixed to the bottom of the slide rod.

[0011] In a preferred embodiment of the adjustable gas flow controller provided by this utility model, the lifting mechanism includes a support rod, a first motor, a first bevel gear, a second bevel gear, a rotating shaft, a screw, and a screw sleeve. Two support rods are fixed to the top of the turntable, and a first motor is fixed to the top of the two support rods. A first bevel gear is fixed to the output end of the first motor. A screw sleeve is slidably connected to the inner side of the turntable. A screw is threadedly connected to the inner side of the top of the screw sleeve. A rotating shaft is fixed to the top of the screw. A second bevel gear is fixed to the outer side of the rotating shaft. The second bevel gear and the first bevel gear are meshed together.

[0012] In a preferred embodiment of the adjustable gas flow controller provided by this utility model, the rotating structure includes a locking mechanism and a limiting mechanism.

[0013] In a preferred embodiment of the adjustable gas flow controller provided by this utility model, the locking mechanism includes a first connecting plate, a second motor, a worm gear, and a worm wheel. The first connecting plates are fixed at both ends on one side of the top of the control tube. The worm gear is rotatably connected to the side of the two first connecting plates that are close to each other. The second motor is fixed to one side of one of the first connecting plates. The output end of the second motor is fixed to the worm gear. The worm wheel is fixed to the upper end of the outer side of the rotating column. The worm wheel and the worm gear are meshed together.

[0014] In a preferred embodiment of the adjustable gas flow controller provided by this utility model, the limiting mechanism includes a handle, a gear, a rack, a pull rod, a spring, and a second connecting plate. The second connecting plate is fixed to one side of the top of the control tube, the gear is fixed to the outside of the rotating column, the pull rod is slidably connected to the inside of the second connecting plate, a handle is fixed to one side of the pull rod, a rack is fixed to the other side of the pull rod, the rack and the gear are meshed together, a spring is sleeved on the outside of the pull rod, one side of the spring is fixed to the rack, and the other side of the spring is fixed to the second connecting plate.

[0015] It is clear without a doubt that the technical solution described above in this application can solve the technical problem that this application aims to address.

[0016] At the same time, through the above technical solutions, this utility model has at least the following beneficial effects:

[0017] This invention provides an adjustable gas flow controller. Through the design of the adjustment and rotation structures, the device achieves highly stable control of repetitive flow rates, maintaining a constant flow rate for extended periods. This is particularly important for industrial processes requiring long-term operation. The precise structural design reduces flow fluctuations caused by environmental factors, ensuring the stability of flow control. Furthermore, the adjustment structure can quickly respond to changes in flow rate, enabling real-time flow adjustment. This is of great significance for scenarios requiring rapid response to flow changes, such as emergency shutdowns and flow adjustments. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of an adjustable gas flow controller according to the present invention.

[0020] Figure 2 This is a side view of an adjustable gas flow controller according to the present invention.

[0021] Figure 3 This is a schematic diagram showing the connection between the control tube and the mounting block of an adjustable gas flow controller according to this utility model.

[0022] Figure 4 This is a schematic diagram showing the connection between the screw sleeve and the patch of the controller for adjustable gas flow according to this utility model.

[0023] Figure 5 This is a schematic diagram showing the connection between the first and second bevel gears of an adjustable gas flow controller according to this utility model.

[0024] Figure 6 This is a schematic diagram showing the connection between the worm gear and worm wheel in an adjustable gas flow controller according to this utility model.

[0025] Figure 7 This is a schematic diagram showing the connection between the gear and rack of an adjustable gas flow controller according to this utility model.

[0026] In the diagram: 1. Control tube; 2. Mounting block; 3. Bolt; 4. Rotary column; 5. Turntable; 6. Support rod; 7. First motor; 8. First bevel gear; 9. Second bevel gear; 10. Rotating shaft; 11. Screw; 12. Screw sleeve; 13. Patch; 14. Slide rod; 15. Limit cap; 16. First connecting plate; 17. Second motor; 18. Worm gear; 19. Worm wheel; 20. Handle; 21. Gear; 22. Rack; 23. Pull rod; 24. Spring; 25. Second connecting plate. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0028] As described in the background art, the device lacks a precise adjustment structure, which leads to deviations in gas flow rate, thereby affecting the accuracy of production or experimental results.

[0029] To solve this technical problem, this utility model provides a controller with adjustable gas flow rate.

[0030] For details, please refer to Figures 1-7 A controller for adjustable gas flow specifically includes: a control tube 1, with mounting blocks 2 fixed at both ends of the outer side of the control tube 1, bolts 3 slidably connected to the inner sides of the two mounting blocks 2, an adjustment structure on one side of the top of the control tube 1, and a rotating structure on the outer side of the adjustment structure.

[0031] This invention provides an adjustable gas flow controller. Through the design of the adjustment and rotation structures, the device achieves highly stable control of repetitive flow rates, maintaining a constant flow rate for extended periods. This is particularly important for industrial processes requiring long-term operation. The precise structural design reduces flow fluctuations caused by environmental factors, ensuring the stability of flow control. Furthermore, the adjustment structure can quickly respond to changes in flow rate, enabling real-time flow adjustment. This is of great significance for scenarios requiring rapid response to flow changes, such as emergency shutdowns and flow adjustments.

[0032] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0033] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0034] Reference Figures 1-7 A controller for adjustable gas flow includes a control tube 1, with mounting blocks 2 fixed at both ends of the outer side of the control tube 1, bolts 3 slidably connected to the inner sides of the two mounting blocks 2, an adjustment structure on one side of the top of the control tube 1, and a rotating structure on the outer side of the adjustment structure.

[0035] The adjustment structure includes a lifting mechanism and a hole-blocking mechanism. The hole-blocking mechanism includes a rotating column 4, a turntable 5, a patch 13, a slide rod 14, and a limit cap 15. The rotating column 4 is rotatably connected to one side of the top of the control tube 1. The turntable 5 is fixed to the top of the rotating column 4. The slide rod 14 is slidably connected to one end of the inner side of the turntable 5. The limit cap 15 is fixed to the top of the slide rod 14, and the patch 13 is fixed to the bottom of the slide rod 14, so that the hole-blocking mechanism can block the hole at the top of the control tube 1.

[0036] The lifting mechanism includes support rods 6, a first motor 7, a first bevel gear 8, a second bevel gear 9, a rotating shaft 10, a screw 11, and a screw sleeve 12. Two support rods 6 are fixed to the top of the turntable 5, and a first motor 7 is fixed to the top of the two support rods 6. The output end of the first motor 7 is fixed to the first bevel gear 8. The screw sleeve 12 is slidably connected to the inner side of the turntable 5. The screw 11 is threadedly connected to the inner side of the top of the screw sleeve 12. The rotating shaft 10 is fixed to the top of the screw 11. The second bevel gear 9 is fixed to the outer side of the rotating shaft 10. The second bevel gear 9 and the first bevel gear 8 are meshed and connected, so that the lifting mechanism can drive the patch 13 to rise and fall.

[0037] The rotating structure includes a locking mechanism and a limiting mechanism. The locking mechanism includes a first connecting plate 16, a second motor 17, a worm gear 18, and a worm wheel 19. Both ends of the top side of the control tube 1 are fixed with the first connecting plate 16. The worm gear 18 is rotatably connected to the side of the two first connecting plates 16 that are close to each other. The second motor 17 is fixed to one side of one of the first connecting plates 16. The output end of the second motor 17 is fixed to the worm gear 18. The upper end of the outer side of the rotating column 4 is fixed with the worm wheel 19. The worm wheel 19 and the worm gear 18 are meshed and connected, so that the locking mechanism can drive the rotating column 4 to rotate.

[0038] The limiting mechanism includes a handle 20, a gear 21, a rack 22, a pull rod 23, a spring 24, and a second connecting plate 25. The second connecting plate 25 is fixed to one side of the top of the control tube 1, the gear 21 is fixed to the outside of the rotating column 4, the pull rod 23 is slidably connected to the inside of the second connecting plate 25, the handle 20 is fixed to one side of the pull rod 23, the rack 22 is fixed to the other side of the pull rod 23, the rack 22 and the gear 21 are meshed together, the spring 24 is sleeved on the outside of the pull rod 23, one side of the spring 24 is fixed to the rack 22, and the other side of the spring 24 is fixed to the second connecting plate 25, so that the limiting mechanism can restrict the rotation of the rotating column 4.

[0039] This invention provides an adjustable gas flow controller. Through the design of the adjustment and rotation structures, the device achieves highly stable control of repetitive flow rates, maintaining a constant flow rate for extended periods. This is particularly important for industrial processes requiring long-term operation. The precise structural design reduces flow fluctuations caused by environmental factors, ensuring the stability of flow control. Furthermore, the adjustment structure can quickly respond to changes in flow rate, enabling real-time flow adjustment. This is of great significance for scenarios requiring rapid response to flow changes, such as emergency shutdowns and flow adjustments.

[0040] The usage process of the adjustable gas flow controller provided by this utility model is as follows: The user places the device in the desired location and then installs it using the mounting block 2 and bolts 3. The user pulls the handle 20, which in turn moves the pull rod 23 and rack 22, causing the rack 22 to disengage from the gear 21 and compress the spring 24. The user then energizes the second motor 17, which drives the worm gear 18 to rotate. Since one side of the worm gear 18 is meshed with a worm wheel 19, the rotation of the worm gear 18 drives the worm wheel 19 to rotate, which in turn drives the rotating column 4 to rotate. The rotation of the rotating column 4 drives the turntable 5 to rotate. The user then energizes the first motor 7, which drives the first bevel gear 8 to rotate. Since one side of the first bevel gear 8 is meshed with a second bevel gear 9, the first bevel gear 8... The rotation drives the second bevel gear 9 to rotate, which in turn drives the rotating shaft 10 and the screw 11 to rotate. Since the screw 11 is threadedly connected to the outer side of the screw sleeve 12, the rotation of the screw 11 causes the screw 11 to slide and rise and fall inside the turntable 5, and causes the patch 13 to disengage from the contact connection with the top of the control tube 1. The rotation of the turntable 5 drives the patch 13 to rotate. After the appropriate angle adjustment is completed, the user causes the first motor 7 to rotate in the opposite direction, thereby lowering the patch 13 and restoring the contact connection between the patch 13 and the control tube 1. This allows the airflow to flow out controllably through the inner side of the control tube 1. In summary, this utility model brings significant advantages such as high-precision control, stability, fast response, compatibility and expandability, durability and reliability, and ease of operation and maintenance. These advantages make this type of controller have broad application prospects in industrial production, scientific research and other fields.

[0041] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A controller for regulating the flow of a gas, comprising a control tube (1), characterised in that, Both ends of the control pipe (1) are fixed with mounting blocks (2), the inner sides of the two mounting blocks (2) are slidably connected with bolts (3), one side of the top of the control pipe (1) is provided with an adjusting structure, and the outer side of the adjusting structure is provided with a rotating structure.

2. A controller for regulating the flow of gas as claimed in claim 1, wherein, The adjusting structure comprises a lifting mechanism and a hole plugging mechanism.

3. A controller for regulating gas flow as claimed in claim 2, wherein, The hole plugging mechanism comprises a rotating column (4), a rotating disc (5), a patch (13), a sliding rod (14) and a limiting cap (15), one side of the top of the control pipe (1) is rotatably connected with the rotating column (4), the top of the rotating column (4) is fixed with the rotating disc (5), one end of the inner side of the rotating disc (5) is slidably connected with the sliding rod (14), the top of the sliding rod (14) is fixed with the limiting cap (15), and the bottom of the sliding rod (14) is fixed with the patch (13).

4. A controller for regulating the flow of gas as claimed in claim 3, wherein, The lifting mechanism comprises support sticks (6), a first motor (7), a first bevel gear (8), a second bevel gear (9), a rotating shaft (10), a screw rod (11) and a screw sleeve (12), the top of the rotating disc (5) is fixed with two support sticks (6), the top of the two support sticks (6) is fixed with a first motor (7), the output end of the first motor (7) is fixed with a first bevel gear (8), the inner side of the rotating disc (5) is slidably connected with a screw sleeve (12), the inner side of the top of the screw sleeve (12) is threadedly connected with a screw rod (11), the top of the screw rod (11) is fixed with a rotating shaft (10), the outer side of the rotating shaft (10) is fixed with a second bevel gear (9), and the second bevel gear (9) is meshedly connected with the first bevel gear (8).

5. A controller for regulating the flow of gas as claimed in claim 4 wherein, The rotating structure comprises a locking mechanism and a limiting mechanism.

6. A controller for regulating the flow of gas as claimed in claim 5 wherein, The locking mechanism comprises first connecting plates (16), a second motor (17), a worm (18) and a worm wheel (19), both ends of one side of the top of the control pipe (1) are fixed with first connecting plates (16), the sides, which are close to each other, of the two first connecting plates (16) are rotatably connected with a worm (18), one side of one of the first connecting plates (16) is fixed with a second motor (17), the output end of the second motor (17) is fixed with the worm (18), and the upper end of the outer side of the rotating column (4) is fixed with a worm wheel (19), and the worm wheel (19) is meshedly connected with the worm (18).

7. A controller for regulating the flow of gas as claimed in claim 6 wherein, The limiting mechanism comprises handles (20), a gear (21), a rack (22), a pull rod (23), a spring (24) and a second connecting plate (25), one side of the top of the control pipe (1) is fixed with a second connecting plate (25), the outer side of the rotating column (4) is fixed with a gear (21), the inner side of the second connecting plate (25) is slidably connected with a pull rod (23), one side of the pull rod (23) is fixed with a handle (20), the other side of the pull rod (23) is fixed with a rack (22), the rack (22) is meshedly connected with the gear (21), the outer side of the pull rod (23) is sleeved with a spring (24), one side of the spring (24) is fixed with the rack (22), and the other side of the spring (24) is fixed with the second connecting plate (25).

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