Vacuum degree control device

Abstract

The utility model discloses a vacuum degree control device which comprises a vertical pipe, the bottom of the vertical pipe is arranged in a sealed mode, the upper end of the vertical pipe is communicated with a transverse pipe, a vacuum sensor used for measuring the vacuum degree in the transverse pipe is installed on the transverse pipe, the transverse pipe is communicated with a first connecting pipe, and the first connecting pipe is communicated with a vacuumizing opening of reaction equipment through a first hose. The first connecting pipe is provided with a first valve, the lower end of the vertical pipe is communicated with a second connecting pipe, the second connecting pipe is communicated with an air inlet of the vacuum pump through a second hose, and the second connecting pipe is provided with a second valve; according to the utility model, the vertical pipe, the horizontal pipe, the vacuum sensor, the vacuum breaking valve, the first valve and the second valve are arranged, so that vacuum degree control operation can be carried out on any experimental equipment, the whole mechanism is simple, the manufacturing cost is low, and later overhaul and maintenance are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of vacuum degree control, in particular to a vacuum degree control device. Background Art

[0002] The vacuum controller is an experimental instrument that can control the vacuum environment. It is currently used in laboratories to conduct vacuum distillation experiments and reaction control experiments, making measurements more accurate and the results more precise.

[0003] A Chinese patent with announcement number CN210377081U discloses a vacuum controller, including a fixed box and an exhaust mechanism, wherein a fixed seat is fixed to the bottom inner wall of the fixed box by bolts, a guide cylinder is fixed to the top outer wall of the fixed seat near four corners by bolts, a guide column is inserted into the circumferential inner wall of the guide cylinder, a same tray is fixed to the top outer wall of the four guide columns by bolts, a pressure sensor is fixed to the top outer wall of the fixed seat by bolts, the top outer wall of the pressure sensor is in contact with the tray, a fixed sleeve rod is welded to the top inner wall of the fixed box, and a thermometer is sleeved on the outer wall of one side of the fixed sleeve rod.

[0004] Although the above vacuum controller solves some defects existing in the prior art, it is found that the above vacuum controller is not convenient for subsequent inspection and maintenance during actual use.

[0005] Therefore, a vacuum degree control device is proposed. Utility Model Content

[0006] The purpose of the utility model is to provide a vacuum degree control device, so as to solve or at least alleviate one or more of the above-mentioned problems and other problems existing in the prior art.

[0007] In order to achieve the above-mentioned purpose, the main technical solutions adopted by the utility model include:

[0008] A vacuum control device comprises a vertical pipe, the bottom of which is sealed, the upper end of which is connected to a horizontal pipe, both ends of which are sealed, a vacuum sensor for measuring the vacuum inside the horizontal pipe is installed on the horizontal pipe, a first connecting pipe is connected to the horizontal pipe, the first connecting pipe is connected to a vacuum port of a reaction device through a first hose, a first valve is installed on the first connecting pipe, the lower end of the vertical pipe is connected to a second connecting pipe, the second connecting pipe is connected to an air inlet of a vacuum pump through a second hose, and a second valve is installed on the second connecting pipe.

[0009] In a vacuum degree control device according to the utility model, the transverse pipe is connected with a third connecting pipe, and the third connecting pipe is installed with a vacuum valve.

[0010] In a vacuum degree control device according to the utility model, a control box is fixedly installed on the riser through a fixing assembly, a controller is fixedly installed inside the control box, the vacuum sensor is electrically connected to the input end of the controller, the air piercing valve is an electromagnetic air piercing valve, the first valve and the second valve are both configured as electromagnetic valves, and the air piercing valve, the first valve and the second valve are all controlled by the controller.

[0011] In a vacuum control device according to the utility model, the fixing assembly includes an L-shaped connecting block fixedly mounted on the back of the control box, two L-shaped connecting blocks are provided, and the two L-shaped connecting blocks are respectively fixedly connected to the upper and lower ends of the control box, and the L-shaped connecting block is fixed to the riser through a clamp.

[0012] In a vacuum degree control device according to the utility model, a button group is installed on the control box, and the button group is electrically connected to the controller input terminal.

[0013] In a vacuum degree control device according to the utility model, a display screen is embedded on the surface of the control box, and the controller is electrically connected to the display screen.

[0014] In a vacuum degree control device according to the utility model, it also includes a base, and the four corners of the base are provided with assembly holes for fixing and connecting the base, and the bottom of the vertical pipe is detachably connected to the base through a disassembly component.

[0015] In a vacuum control device according to the utility model, the disassembly and assembly parts include a connecting plate and a limiting plate, the connecting plate is fixedly connected to the bottom of the vertical pipe, the limiting plate is fixedly connected to the bottom of the connecting plate, a concave limiting groove is provided on one side of the base, the limiting plate can be inserted into the inside of the concave limiting groove, both sides of the top of the limiting plate are provided with card grooves, both ends of the top of the base are provided with assembly grooves, a clamping head is slidably provided inside the assembly groove, one end of the clamping head is fixedly connected to a pull rod, one end of the pull rod slides and extends to the side of the base, a spring is sleeved on the pull rod, one end of the spring abuts against one side of the clamping head, and the other end of the spring abuts against one side of the assembly groove, and the clamping head can be clamped into the inside of the clamping slot.

[0016] In a vacuum degree control device according to the utility model, one end of the pull rod away from the clamping head is fixedly connected with a stopper.

[0017] In a vacuum degree control device according to the utility model, chamfers are provided on both sides of one end of the clamping slot.

[0018] The utility model has at least the following beneficial effects:

[0019] The utility model can control the vacuum degree of any experimental equipment through the vertical pipe, horizontal pipe, vacuum sensor, air-breaking valve, first valve and second valve, and the overall structure is simple, the manufacturing cost is low, and it is convenient for later inspection and maintenance;

[0020] The vacuum degree of the experimental equipment can be automatically monitored and controlled in real time through the set controller, and the operation is simple;

[0021] The provided base cooperates with the disassembly and assembly parts to facilitate the disassembly, assembly and fixation of the vacuum degree control device. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0023] Figure 1 It is a schematic diagram of the structure of the utility model;

[0024] Figure 2 This is one of the structural schematic diagrams of the partial explosion of the utility model;

[0025] Figure 3 It is a schematic diagram of the cross-sectional structure of the base of the utility model;

[0026] Figure 4 It is a structural schematic diagram of the L-shaped connecting block of the utility model.

[0027] Description of Figure Numbers:

[0028] 1. Vertical pipe; 2. Horizontal pipe; 3. Vacuum sensor; 4. Breaking valve; 5. First valve; 6. Second valve; 7. Control box; 701. Clamp; 702. L-shaped connecting block; 8. Base; 9. Connecting plate; 10. Limiting plate; 11. Slot; 12. Concave limiting slot; 13. Assembly slot; 14. Clamp; 15. Assembly hole; 16. Spring; 17. Pull rod; 18. Stop block. DETAILED DESCRIPTION

[0029] The following will describe the implementation methods of the present application in detail with the help of accompanying drawings and examples, so that the implementation process of how the present application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0030] Please refer to Figures 1 to 4As shown, this embodiment provides a vacuum control device, including a vertical pipe 1, the bottom of the vertical pipe 1 is sealed, the upper end of the vertical pipe 1 is connected with a horizontal pipe 2, both ends of the horizontal pipe 2 are sealed, a vacuum sensor 3 for measuring the vacuum degree inside the horizontal pipe 2 is installed on the horizontal pipe 2, the horizontal pipe 2 is connected with a first connecting pipe, the first connecting pipe is connected with the vacuum port of the reaction equipment through a first hose, the first connecting pipe is installed with a first valve 5, the lower end of the vertical pipe 1 is connected with a second connecting pipe, the second connecting pipe is connected with the air inlet of the vacuum pump through a second hose, and the second connecting pipe is installed with a second valve 6.

[0031] By adopting the above technical solution, when in use, the second connecting pipe is connected to the air inlet of the vacuum pump, the first connecting pipe is connected to the vacuum port of the experimental equipment, and then the first valve 5 and the second valve 6 are opened, and then the vacuum pump is started to vacuum the inside of the experimental equipment. The vacuum degree inside the experimental equipment can be understood in real time by observing the data on the vacuum sensor 3. When the required vacuum degree is reached, the second valve 6 and the vacuum pump can be closed.

[0032] Specifically, in order to improve the safety of the vacuum control device, the cross pipe 2 is connected with a third connecting pipe, and the third connecting pipe is installed with a breaker valve 4.

[0033] Specifically, for the convenience of operation, a control box 7 is fixedly installed on the riser 1 through a fixing component, and a controller is fixedly installed inside the control box 7. The vacuum sensor 3 is electrically connected to the input end of the controller. The air-breaking valve 4 is an electromagnetic air-breaking valve, and the first valve 5 and the second valve 6 are both configured as electromagnetic valves. The air-breaking valve 4, the first valve 5 and the second valve 6 are all controlled by the controller. A button group for setting parameters is installed on the control box 7, and the button group is electrically connected to the input end of the controller. A display screen is embedded on the surface of the control box 7, and the controller is electrically connected to the display screen. The relevant parameters can be checked through the set display screen. In this embodiment, the controller can be selected as a specific model of a PLC controller, a DSP controller, or a single-chip microcomputer sold on the market, without limitation, as long as it can meet the control requirements of the vacuum control device.

[0034] In this embodiment, in order to facilitate the disassembly, assembly and fixation of the vacuum control device, a base 8 is provided. The four corners of the base 8 are provided with assembly holes 15 for fixing the base 8. During installation, the base 8 is fixed to the operating table by bolts in conjunction with the assembly holes 15. The bottom of the vertical pipe 1 is detachably connected to the base 8 through a disassembly component. In this embodiment, the disassembly component includes a connecting plate 9 and a limiting plate 10. The connecting plate 9 is fixedly connected to the bottom of the vertical pipe 1, and the limiting plate 10 is fixedly connected to the bottom of the connecting plate 9. A concave limiting groove 12 is provided on one side of the base 8, and the limiting plate 10 can be plugged into the concave limiting groove 12. Inside, both sides of the top of the limit plate 10 are provided with card grooves 11, and both ends of the top of the base 8 are provided with assembly grooves 13. A card head 14 is slidably arranged inside the assembly groove 13, and one end of the card head 14 is fixedly connected to a pull rod 17, and one end of the pull rod 17 slides and extends to the side of the base 8. A spring 16 is sleeved on the pull rod 17, and one end of the spring 16 abuts on one side of the card head 14, and the other end of the spring 16 abuts on one side of the assembly groove 13. The card head 14 can be stuck into the inside of the card groove 11. In order to prevent the card head 14 from falling off from the assembly groove 13, a stopper 18 is fixedly connected to the end of the pull rod 17 away from the card head 14.

[0035] By adopting the above technical solution, during installation, the pull rod 17 is pulled away from the base 8 to pull the clamping head 14 into the assembly groove 13. At this time, the spring 16 is squeezed, and then the limit plate 10 is inserted into the concave limit groove 12. Then the pull rod 17 is released. As the limit plate 10 is continuously inserted into the concave limit groove 12, when the slot 11 reaches the position of the clamping head 14, the clamping head 14 is inserted into the slot 11 under the elastic force of the spring 16. The installation is now completed. When disassembly is required, the pull rod 17 is pulled away from the base 8 to pull the clamping head 14 into the assembly groove 13, and then the limit plate 10 can be pulled out from the concave limit groove 12.

[0036] In order to facilitate the insertion of the limit plate 10 into the concave limit groove 12, chamfers 1001 are provided on both sides of one end of the slot 11. By setting the chamfers 1001, when the limit plate 10 is inserted into the concave limit groove 12, there is no need to pull the pull rod 17 to pull the clamping head 14 into the assembly groove 13. As the limit plate 10 is continuously inserted into the concave limit groove 12, the chamfers 1001 will be squeezed with the clamping head 14, pressing the clamping head 14 into the assembly groove 13.

[0037] In some embodiments, a connecting flange may be fixed at the bottom of the riser 1 and directly connected to the operating platform through the flange and bolts.

[0038] The above description shows and describes several preferred embodiments of the utility model, but as mentioned above, it should be understood that the utility model is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the utility model concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not deviate from the spirit and scope of the utility model, and should be within the scope of protection of the claims attached to the utility model.

Claims

1. A vacuum control device, characterized in that: The invention comprises a vertical pipe (1), the bottom of the vertical pipe (1) is sealed, the upper end of the vertical pipe (1) is connected to a horizontal pipe (2), both ends of the horizontal pipe (2) are sealed, a vacuum sensor (3) for measuring the vacuum degree inside the horizontal pipe (2) is installed on the horizontal pipe (2), the horizontal pipe (2) is connected to a first connecting pipe, the first connecting pipe is connected to a vacuum port of a reaction device through a first hose, a first valve (5) is installed on the first connecting pipe, the lower end of the vertical pipe (1) is connected to a second connecting pipe, the second connecting pipe is connected to an air inlet of a vacuum pump through a second hose, and a second valve (6) is installed on the second connecting pipe.

2. A vacuum control device according to claim 1, characterized in that: The transverse pipe (2) is connected to a third connecting pipe, and a breaker valve (4) is installed on the third connecting pipe.

3. A vacuum control device according to claim 2, characterized in that: A control box (7) is fixedly mounted on the riser (1) via a fixing assembly, a controller is fixedly mounted inside the control box (7), the vacuum sensor (3) is electrically connected to an input end of the controller, the air-breaking valve (4) is an electromagnetic air-breaking valve, the first valve (5) and the second valve (6) are both configured as electromagnetic valves, and the air-breaking valve (4), the first valve (5) and the second valve (6) are all controlled by the controller.

4. A vacuum control device according to claim 3, characterized in that: The fixing assembly comprises an L-shaped connection block (702) fixedly mounted on the back of the control box (7), two L-shaped connection blocks (702) are provided, and the two L-shaped connection blocks (702) are respectively fixedly connected to the upper and lower ends of the control box (7), and the L-shaped connection block (702) is fixed to the standpipe (1) through a clamp (701).

5. A vacuum control device according to claim 3, characterized in that: A button group is installed on the control box (7), and the button group is electrically connected to the controller input terminal.

6. A vacuum control device according to claim 5, characterized in that: A display screen is embedded on the surface of the control box (7), and the controller is electrically connected to the display screen.

7. A vacuum control device according to claim 1, characterized in that: It also comprises a base (8), the four corners of which are provided with assembly holes (15) for fixing and connecting the base (8), and the bottom of the riser (1) is detachably connected to the base (8) via a detachable component.

8. A vacuum control device according to claim 7, characterized in that: The disassembly and assembly part comprises a connecting plate (9) and a limiting plate (10), wherein the connecting plate (9) is fixedly connected to the bottom of the vertical pipe (1), and the limiting plate (10) is fixedly connected to the bottom of the connecting plate (9). A concave limiting groove (12) is provided on one side of the base (8), and the limiting plate (10) can be inserted into the inside of the concave limiting groove (12). Both sides of the top of the limiting plate (10) are provided with card slots (11), and both ends of the top of the base (8) are provided with assembly slots (11). 3), a clamp (14) is slidably provided inside the assembly groove (13), one end of the clamp (14) is fixedly connected to a pull rod (17), one end of the pull rod (17) slides and extends to the side of the base (8), a spring (16) is sleeved on the pull rod (17), one end of the spring (16) abuts against one side of the clamp (14), and the other end of the spring (16) abuts against one side of the assembly groove (13), and the clamp (14) can be clamped into the interior of the clamping groove (11).

9. A vacuum control device according to claim 8, characterized in that: One end of the pull rod (17) away from the clamping head (14) is fixedly connected to a stopper (18).

10. A vacuum control device according to claim 8, characterized in that: Chamfers (1001) are provided on both sides of one end of the slot (11).

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