Gas mass flow controller

Abstract

The utility model relates to the technical field of flow controllers, in particular to a gas mass flow controller which comprises a shell, a back plate is fixedly connected to the back face of the shell through screws, a flow channel is fixedly connected to the bottom end of the shell, through grooves are formed in the two sides of the flow channel, a gas inlet assembly is fixedly connected to one side of the flow channel, and a gas outlet assembly is fixedly connected to the other side of the flow channel. The air inlet assembly comprises a threaded connector, a protruding pipe and an inner threaded ring, and one side of the through groove is fixedly connected with the threaded connector. Due to the arrangement of the shell, the back plate, the flow channel, the threaded connector, the protruding pipe and the inner threaded ring, when in use, a worker clamps the back plate into the back face of the shell and fixes the back plate through screws, the bottom end of the shell is fixedly connected with the flow channel, through grooves are formed in the two sides of the flow channel, and one side of the flow channel is fixedly connected with the threaded connector; and the inner threaded ring provided with the convex pipe is connected with the threaded connector, and the convex pipe is inserted into the inner wall of the threaded connector, so that the effect of conveniently installing the threaded ring is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of flow controllers, in particular to a gas mass flow controller. Background Art

[0002] The mass flow meter directly measures the mass flow of the medium passing through the flow meter, and can also measure the density of the medium and indirectly measure the temperature of the medium. Since the transmitter is an intelligent instrument with a single-chip microcomputer as the core, more than a dozen parameters can be derived for users based on the above three basic quantities. The mass flow meter is a new generation of flow meter with flexible configuration, powerful functions, and high performance-price ratio.

[0003] A gas mass flow controller disclosed in the Chinese utility model patent application disclosure specification CN206696713U includes a shell valve body, a shell upper cover and a shell bottom cover, the shell upper cover and the shell bottom cover are located at the top of the shell valve body, a display window is opened on the shell upper cover, the left and right sides of the shell upper cover and the shell bottom cover are respectively opened with a first screw, the shell upper cover and the shell bottom cover are fixedly connected by the first screw, the back of the display window and the shell bottom cover are respectively provided with a second screw, a coil valve body and an induction coil are installed inside the shell upper cover and the shell bottom cover, the coil valve body is connected to the shell valve body, the top of the shell upper cover and the shell bottom cover are sequentially provided with a first function hole, a serial port nine-pin socket data interface, a DC power socket, an S terminal and a second function hole from left to right, a PCB circuit board is also provided on the top of the shell upper cover and the shell bottom cover, the PCB circuit board is fixed by screws, and is suitable for wide promotion.

[0004] However, the device also lacks the function of fixing the air inlet, and when in use, it may be inconvenient to connect the air inlet pipe. Not only that, the device also lacks the function of pipe filtering, and when in use, gas dirt may clog the machine. Utility Model Content

[0005] The purpose of the utility model is to provide a gas mass flow controller to solve the problems raised in the above background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A gas mass flow controller comprises a shell, the back of which is fixedly connected to a back plate by screws, the bottom of which is fixedly connected to a flow channel, through grooves are provided on both sides of the flow channel, one side of the flow channel is fixedly connected to an air inlet component, the air inlet component comprises a threaded interface, a convex pipe and an internal threaded ring, one side of the through groove is fixedly connected to a threaded interface, the outer surface of the threaded interface is threadedly connected to an internal threaded ring, and the inner wall of the internal threaded ring is fixedly connected to a convex pipe; one side of the air inlet component is fixedly connected to a pipe interface, the upper surface of the pipe interface is fixedly connected to a filter plate by adhesive, the outer surface of the pipe interface is threadedly connected to a pipe connecting ring, and one side of the pipe connecting ring is fixedly connected to an air inlet pipe.

[0008] Preferably, a socket is fixedly connected to the top of the shell, and a circuit board is fixedly connected to the front of the back panel.

[0009] Preferably, one side of the flow channel is fixedly connected with an air outlet, the other side of the flow channel is fixedly connected with an air outlet, and the top of the flow channel is fixedly connected with a sensor.

[0010] Preferably, a sealing ring is sleeved on the outer surface of the air inlet interface, and a connecting ring is threadedly connected to one side of the sealing ring.

[0011] Preferably, a solenoid valve is fixedly connected to a side of the top of the flow channel close to the shell, and a locking nut is fixedly connected to the top of the solenoid valve.

[0012] Preferably, a display window is fixedly connected to the front side of the shell, and an adjustment button is fixedly connected to a side of the front side of the shell close to the display window.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. This gas mass flow controller is provided with a shell, a back plate, a flow channel, a threaded interface, a convex tube and an internal threaded ring. When in use, the staff inserts the back plate into the back of the shell, fixes the back plate with screws, fixes the bottom end of the shell to the flow channel, opens through grooves on both sides of the flow channel, fixes one side of the flow channel to the threaded interface, and then connects the internal threaded ring equipped with the convex tube to the threaded interface, and inserts the convex tube into the inner wall of the threaded interface, thereby achieving the effect of facilitating the installation of the threaded ring.

[0015] 2. This gas mass flow controller is provided with a pipe interface, a filter sheet, a pipe ring and an air inlet pipe. When in use, the staff applies glue to a circle of the filter sheet and then fixes it on a circle of the pipe port. The pipe ring is then threadedly connected to the outer surface of the pipe port, and the air inlet pipe is welded to the top of the pipe ring. The gas is filtered from the air inlet pipe through the filter sheet, thereby achieving the purpose of convenient gas filtering. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the display window and adjustment button structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the air intake assembly of the utility model;

[0018] Figure 3 This is a schematic diagram of the circuit board and sensor structure of the utility model;

[0019] Figure 4 It is a schematic diagram of the structure of the shell, back plate and flow channel of the utility model.

[0020] In the figure: 1. Shell; 2. Back plate; 3. Flow channel; 4. Air inlet assembly; 401. Threaded interface; 402. Convex pipe; 403. Internal thread ring; 5. Pipe interface; 6. Filter; 7. Pipe ring; 8. Air inlet pipe; 9. Socket; 10. Circuit board; 11. Air outlet; 12. Sensor; 13. Sealing ring; 14. Solenoid valve; 15. Locking nut; 16. Display window; 17. Adjustment button. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-Figure 4 As shown, a technical solution provided by the utility model:

[0023] A gas mass flow controller, comprising a shell 1, a back plate 2 is fixedly connected to the back of the shell 1 by screws, a flow channel 3 is fixedly connected to the bottom of the shell 1, through grooves are provided on both sides of the flow channel 3, an air inlet component 4 is fixedly connected to one side of the flow channel 3, and the air inlet component 4 comprises a threaded interface 401, a convex tube 402 and an internal thread ring 403, a threaded interface 401 is fixedly connected to one side of the through groove, an internal thread ring 403 is threadedly connected to the outer surface of the threaded interface 401, a convex tube 402 is fixedly connected to the inner wall of the internal thread ring 403, and a gas inlet component 402 is fixedly connected to the inner wall of the internal thread ring 403 through the shell 1. , back plate 2, flow channel 3, threaded interface 401, convex tube 402 and internal thread ring 403 are set. When in use, the staff inserts the back plate 2 into the back of the shell 1, fixes the back plate 2 with screws, fixes the bottom end of the shell 1 to the flow channel 3, opens through grooves on both sides of the flow channel 3, fixes one side of the flow channel 3 to the threaded interface 401, and then connects the internal thread ring 403 equipped with the convex tube 402 to the threaded interface 401, and inserts the convex tube into the inner wall of the threaded interface 401, thereby achieving the effect of facilitating the installation of the thread ring 403;

[0024] A pipe interface 5 is fixedly connected to one side of the air inlet component 4, a filter sheet 6 is fixedly connected to the upper surface of the pipe interface 5 by adhesive, a pipe collar 7 is threadedly connected to the outer surface of the pipe interface 5, and an air inlet pipe 8 is fixedly connected to one side of the pipe collar 7. Through the arrangement of the pipe interface 5, the filter sheet 6, the pipe collar 7 and the air inlet pipe 8, when in use, the staff applies adhesive to one circle of the filter sheet 6, and then fixes it to one circle of the pipe port 5, and then threadably connects the pipe collar 7 to the outer surface of the pipe port 5, and welds the air inlet pipe 8 to the top of the pipe collar 7. The gas passes through the filter sheet 6 from the air inlet pipe 8, thereby achieving the effect of conveniently filtering the gas;

[0025] In this embodiment, preferably, a socket 9 is fixedly connected to the top of the housing 1, and a circuit board 10 is fixedly connected to the front of the back plate 2. Through the arrangement of the socket 9 and the circuit board 10, when in use, the staff fixes the socket 9 to the top of the housing 1 for connecting the power supply, and fixes the circuit board 10 to the front of the bottom plate 3, thereby achieving the effect of conveniently controlling the device;

[0026] In this embodiment, preferably, one side of the flow channel 3 is fixedly connected with an air outlet 11, the other side of the flow channel 3 is fixedly connected with an air outlet 11, and the top of the flow channel 3 is fixedly connected with a sensor 12. Through the arrangement of the air outlet 11 and the sensor 12, when in use, the staff opens the air outlet 11 on the other side of the flow channel 3, and fixes the sensor 12 on the top of the flow channel 3. After the gas is detected by the sensor 12 of the flow channel 2, it is transported out of the device from the air outlet 11, thereby achieving the effect of conveniently detecting the gas quality;

[0027] In this embodiment, preferably, a sealing ring 13 is sleeved on the outer surface of the air inlet component 4, and a pipe ring 7 is threadedly connected to one side of the sealing ring 13. Through the arrangement of the pipe ring 7 and the sealing ring 13, when in use, the staff sleeves the sealing ring 13 on the outer surface of the air inlet component 4, and then threadably connects the pipe ring 7 to the upper surface of the air inlet component 4, thereby achieving the effect of sealing the air inlet component 4 to prevent air leakage;

[0028] In this embodiment, preferably, a solenoid valve 14 is fixedly connected to the top of the flow channel 3 near the side of the housing 1, and a locking nut 15 is fixedly connected to the top of the solenoid valve 14. Through the arrangement of the solenoid valve 14 and the locking nut 15, when in use, the staff fixes the flow channel 3 near the side of the housing 1 to the solenoid valve 14, and then threads the top of the solenoid valve 14 to the locking nut 15, thereby achieving the effect of conveniently adjusting the valve body;

[0029] In this embodiment, preferably, a display window 16 is fixedly connected to the front side of the shell 1, and an adjustment button 17 is fixedly connected to the side of the front side of the shell 1 close to the display window 16. Through the arrangement of the display window 16 and the adjustment button 17, when in use, the staff fixes the display window 16 on the front side of the shell 1, and fixes the adjustment button 17 on the bottom side of the display window 16. The adjustment button can be appropriately used according to the value of the display window 16, thereby achieving the purpose of facilitating understanding of the gas flow situation.

[0030] When a gas mass flow controller of the present embodiment is in use, the staff fixes the bottom end of the shell 1 to the flow channel 3, the staff fixes the socket 9 to the top of the shell 1 for connecting the power supply, fixes the circuit board 10 to the front of the bottom plate 3, and then opens the gas outlet 11 on the other side of the flow channel 3, and fixes the sensor 12 to the top of the flow channel 3. After the gas passes through the sensor 12 of the flow channel 2 for detection, it is transported out of the device from the gas outlet 11, the back plate 2 is inserted into the back of the shell 1, and the back plate 2 is fixed with screws. Through grooves are opened on both sides of the flow channel 3, one side of the flow channel 3 is fixedly connected to the threaded interface 401, and then the inner thread ring 403 equipped with the convex tube 402 is connected to the threaded interface 401. The convex tube is inserted into the screw. The inner wall of the grooved interface 401, the staff applies glue on a circle of the filter plate 6, and then fixes it on a circle of the pipe port 5, and then threads the pipe ring 7 on the outer surface of the pipe port 5, welds the air inlet pipe 8 to the top of the pipe ring 7, and the gas is filtered from the air inlet pipe 8 through the filter plate 6, then, puts the sealing ring 13 on the outer surface of the air inlet component 4, and then threads the pipe ring 7 on the upper surface of the air inlet component 4, the staff fixes the flow channel 3 to the side close to the shell 1, and then threads the top of the solenoid valve 14 to the locking nut 15, the staff fixes the display window 16 on the front of the shell 1, and fixes the adjustment button 17 on the bottom side of the display window 16, and the adjustment button can be used appropriately according to the value of the display window 16.

[0031] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A gas mass flow controller, characterized in that: The invention comprises a shell (1), the back of which is fixedly connected to a back plate (2) by means of screws, the bottom of which is fixedly connected to a flow channel (3), through grooves being provided on both sides of the flow channel (3), one side of which is fixedly connected to an air intake component (4), the air intake component (4) comprising a threaded interface (401), a convex pipe (402) and an internal thread ring (403), one side of the through groove being fixedly connected to a threaded interface (401), the outer surface of the threaded interface (401) being threadedly connected to an internal thread ring (403), the inner wall of the internal thread ring (403) being fixedly connected to the convex pipe (402); one side of the air intake component (4) being fixedly connected to a pipe interface (5), the upper surface of the pipe interface (5) being fixedly connected to a filter sheet (6) by means of adhesive, the outer surface of the pipe interface (5) being threadedly connected to a pipe connection ring (7), one side of the pipe connection ring (7) being fixedly connected to an air intake pipe (8).

2. A gas mass flow controller according to claim 1, characterized in that: A socket (9) is fixedly connected to the top of the housing (1), and a circuit board (10) is fixedly connected to the front of the back panel (2).

3. A gas mass flow controller according to claim 1, characterized in that: One side of the flow channel (3) is fixedly connected to an air outlet (11), the other side of the flow channel (3) is fixedly connected to an air outlet (11), and the top of the flow channel (3) is fixedly connected to a sensor (12).

4. A gas mass flow controller according to claim 1, characterized in that: A sealing ring (13) is sleeved on the outer surface of the air inlet assembly (4), and a pipe connecting ring (7) is threadedly connected to one side of the sealing ring (13).

5. A gas mass flow controller according to claim 1, characterized in that: A solenoid valve (14) is fixedly connected to the top of the flow channel (3) on one side close to the housing (1), and a locking nut (15) is fixedly connected to the top of the solenoid valve (14).

6. A gas mass flow controller according to claim 1, characterized in that: A display window (16) is fixedly connected to the front of the housing (1), and an adjustment button (17) is fixedly connected to a side of the front of the housing (1) close to the display window (16).

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