Vacuum pumping and helium filling two-in-one device

Abstract

The utility model belongs to the technical field of vacuumizing and helium filling devices, and discloses a vacuumizing and helium filling two-in-one device which comprises a vacuum machine, the output end of the vacuum machine is connected with a first pipeline, the first pipeline is provided with a connecting pipeline, one side of the vacuum machine is provided with a gas storage box, and the other side of the vacuum machine is provided with a helium filling device. The output end of the air storage box is connected with a second pipeline, the second pipeline is communicated with the connecting pipeline, valves are installed on the first pipeline and the second pipeline, a piston plate is arranged in the air storage box, and an electric push rod is installed on the air storage box. The vacuum machine extracts gas in the connecting pipeline through the first pipeline, the vacuum pump further extracts residual air in the connecting pipeline through the processing pipeline, so that the vacuum effect in the connecting pipeline is improved, the gas storage box fills helium into the connecting pipeline through the second pipeline to complete work, and therefore operation such as inserting and pulling of a quick connector of equipment is reduced, and the working efficiency is improved. The working efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of vacuuming and helium filling devices, and in particular relates to a two-in-one vacuuming and helium filling device. Background Art

[0002] Leakage caused by solder joints or pipe pinholes is the main quality problem of refrigerators (freezers) and other refrigeration products. As the main components of refrigerators (freezers), leakage control of evaporators and condensers is particularly important. At present, evaporator and condenser manufacturers are still generally using high-pressure air leak detection to select leaking products, but the problems of low detection rate and uncontrolled process cannot be completely solved; helium detection, as a leak detection method with high precision and excellent controllability, is also being recognized by various manufacturers.

[0003] The original equipment was designed with two separate operating stations for the vacuuming and helium filling processes of helium leak detection. One station was responsible for vacuuming, and the other station was responsible for filling the product pipeline with helium. There are two problems: 1. Both stations need to plug and unplug quick connectors, which wastes operation actions; 2. There is a situation where the product pipeline is not vacuumed and helium is directly filled, resulting in a low actual helium concentration inside the product, affecting the detection rate and causing quality risks; at the same time, when helium is recovered, the low-concentration helium containing air is recovered into the equipment, which accelerates the rate of helium concentration decline in the equipment, resulting in frequent helium replenishment and waste. Utility Model Content

[0004] The purpose of the utility model is to provide a two-in-one device for vacuuming and filling with helium, so as to solve the problem that vacuuming and filling with helium are generally divided into two continuous processes in the above-mentioned background technology, which has the problem of repeated plugging and unplugging of connectors, affects the detection rate, and easily causes the problem of helium waste.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a two-in-one device for vacuuming and filling with helium, comprising: a vacuum machine, the output end of the vacuum machine is connected to a first pipeline, a connecting pipeline is installed on the first pipeline, an air storage box is provided on one side of the vacuum machine, the output end of the air storage box is connected to a second pipeline, and the second pipeline is communicated with the connecting pipeline, and valves are installed on the first pipeline and the second pipeline.

[0006] Preferably, a piston plate is provided in the air storage box, an electric push rod is installed on the air storage box, and the output end of the electric push rod is connected to the piston plate, the air storage box is connected to an air intake pipe and a recovery pipe, and the recovery pipe is connected to a filter assembly.

[0007] Preferably, the filter assembly includes a filter box, a return pipe and a filter plate, the filter box is connected to the air inlet end of the recovery pipe, the return pipe is connected between the filter box and the connecting pipe, and the filter plate is installed in the filter box.

[0008] Preferably, a mounting groove is provided at the bottom end of the inner wall of the air storage box, a movable plate is provided in the mounting groove, a spring is connected between the movable plate and the air storage box, and a cushion is installed on the upper end surface of the movable plate.

[0009] Preferably, a vacuum pump is installed on the connecting pipe, a processing pipe is provided between the vacuum pump and the connecting pipe, and a vacuum sensor is installed on the connecting pipe.

[0010] Preferably, a base is installed below the vacuum machine and the air storage box, and a plurality of rolling wheels are installed on the lower end surface of the base.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] (1) The utility model improves work efficiency by arranging a vacuum machine, a vacuum pump and an air storage box. When in use, the vacuum machine extracts gas in the connecting pipe through the first pipe, and the vacuum pump further extracts residual air in the connecting pipe through the processing pipe, thereby improving the vacuum effect in the connecting pipe. The air storage box fills the connecting pipe with helium through the second pipe to complete the work, thereby reducing the operations of plugging and unplugging quick connectors of the equipment and improving work efficiency.

[0013] (2) The utility model improves the concentration of recovered helium by providing a recovery pipe, a filter box and a filter plate. When in use, the recovery pipe guides excess helium into the filter box, and the filter plate can adsorb impurity molecules in the helium, thereby improving the concentration of recovered helium. The filtered helium enters the gas storage box from the recovery pipe for next use, thereby avoiding waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the gas storage box of the utility model;

[0016] Figure 3 This is a schematic diagram of the structure of the connecting pipeline of the utility model;

[0017] Figure 4 for Figure 2 A magnified view of part A in FIG.

[0018] In the figure: 1. vacuum machine; 2. first pipeline; 3. connecting pipeline; 4. air storage box; 5. second pipeline; 6. piston plate; 7. electric push rod; 8. air intake pipeline; 9. filter box; 10. return pipeline; 11. recovery pipeline; 12. filter plate; 13. mounting groove; 14. movable plate; 15. spring; 16. cushion; 17. vacuum pump; 18. processing pipeline; 19. vacuum sensor; 20. base; 21. rolling wheel. DETAILED DESCRIPTION

[0019] 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.

[0020] See also Figure 1-Figure 3 As shown, the utility model provides the following technical solution: a two-in-one device for vacuuming and filling with helium, comprising: a vacuum machine 1, an output end of the vacuum machine 1 is connected to a first pipeline 2, a connecting pipeline 3 is installed on the first pipeline 2, a gas storage box 4 is provided on one side of the vacuum machine 1, an output end of the gas storage box 4 is connected to a second pipeline 5, and the second pipeline 5 is communicated with the connecting pipeline 3, valves are installed on the first pipeline 2 and the second pipeline 5, and helium is stored in the gas storage box 4.

[0021] Furthermore, a vacuum pump 17 is installed on the connecting pipe 3 , a processing pipe 18 is provided between the vacuum pump 17 and the connecting pipe 3 , and a vacuum sensor 19 is installed on the connecting pipe 3 .

[0022] Through the above technical solution:

[0023] When in use, the connecting pipe 3 is connected to the device to be tested, then the valve on the first pipe 2 is opened, the valve on the second pipe 5 is closed, and the vacuum machine 1 is started. The vacuum machine 1 extracts the gas in the connecting pipe 3 through the first pipe 2, so that the connecting pipe 3 tends to a vacuum state. Then the vacuum pump 17 further extracts the residual air in the connecting pipe 3 through the processing pipe 18, thereby improving the vacuum effect in the connecting pipe 3. The vacuum sensor 19 monitors the vacuum state in the connecting pipe 3 in real time. After meeting the vacuum requirements, the valve on the first pipe 2 is closed, and the valve on the second pipe 5 is opened. The gas storage box 4 fills the connecting pipe 3 with helium through the second pipe 5 to complete the work, thereby reducing the operations of plugging and unplugging quick connectors of the equipment and improving work efficiency.

[0024] See also Figure 1-Figure 4As shown, a piston plate 6 is provided in the air storage box 4, an electric push rod 7 is installed on the air storage box 4, and the output end of the electric push rod 7 is connected to the piston plate 6, an air intake pipe 8 and a recovery pipe 11 are connected to the air storage box 4, and a filter assembly is connected to the recovery pipe 11.

[0025] Furthermore, the filter assembly includes a filter box 9, a return pipe 10 and a filter plate 12, the filter box 9 is connected to the air inlet end of the recovery pipe 11, the return pipe 10 is connected between the filter box 9 and the connecting pipe 3, and the filter plate 12 is installed in the filter box 9.

[0026] Furthermore, a mounting groove 13 is provided at the bottom end of the inner wall of the air storage box 4 , a movable plate 14 is provided in the mounting groove 13 , a spring 15 is connected between the movable plate 14 and the air storage box 4 , and a cushion 16 is installed on the upper end surface of the movable plate 14 .

[0027] Through the above technical solution:

[0028] When in use, the electric push rod 7 is started, and the electric push rod 7 presses the piston plate 6 to move in the gas storage box 4, so that the helium stored in the gas storage box 4 enters the connecting pipe 3 from the second pipe 5. When the helium is recovered, the recovery pipe 11 introduces the excess helium into the filter box 9. The filter plate 12 is provided with adsorbents such as activated carbon. These adsorbents can adsorb impurity molecules in the helium, thereby increasing the concentration of the recovered helium. The filtered helium enters the gas storage box 4 from the recovery pipe 11 to facilitate the next use and avoid waste. When the piston plate 6 moves to the bottom of the gas storage box 4, the piston plate 6 presses the movable plate 14 to move in the mounting groove 13, so that the spring 15 expands and contracts, and the cushion 16 is deformed, thereby reducing the collision force between the piston plate 6 and the gas storage box 4, protecting the equipment and increasing the service life of the equipment.

[0029] For further information, see Figure 1 As shown, a base 20 is installed below the vacuum machine 1 and the air storage box 4, and a plurality of rolling wheels 21 are installed on the lower end surface of the base 20.

[0030] Specifically, the base 20 provides a stable platform for the vacuum machine 1 and the air storage box 4, ensuring that the machine will not easily tip over or move during operation, and the rolling wheels 21 allow the equipment to be easily moved in the workplace, making it convenient for the operator to adjust the position of the machine as needed.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A two-in-one device for vacuuming and filling with helium, characterized in that: include: A vacuum machine (1), wherein the output end of the vacuum machine (1) is connected to a first pipeline (2), a connecting pipeline (3) is installed on the first pipeline (2), an air storage box (4) is provided on one side of the vacuum machine (1), the output end of the air storage box (4) is connected to a second pipeline (5), and the second pipeline (5) is in communication with the connecting pipeline (3), and valves are installed on both the first pipeline (2) and the second pipeline (5).

2. A two-in-one device for vacuuming and filling with helium according to claim 1, characterized in that: A piston plate (6) is provided in the air storage box (4), an electric push rod (7) is installed on the air storage box (4), and the output end of the electric push rod (7) is connected to the piston plate (6), an air intake pipe (8) and a recovery pipe (11) are connected to the air storage box (4), and a filter assembly is connected to the recovery pipe (11).

3. A two-in-one device for vacuuming and filling with helium according to claim 2, characterized in that: The filter assembly comprises a filter box (9), a return pipe (10) and a filter plate (12); the filter box (9) is connected to the air inlet end of the recovery pipe (11); the return pipe (10) is connected between the filter box (9) and the connecting pipe (3); and the filter plate (12) is installed in the filter box (9).

4. A two-in-one device for vacuuming and filling with helium according to claim 3, characterized in that: A mounting groove (13) is provided at the bottom end of the inner wall of the air storage box (4), a movable plate (14) is provided in the mounting groove (13), a spring (15) is connected between the movable plate (14) and the air storage box (4), and a cushion (16) is installed on the upper end surface of the movable plate (14).

5. A two-in-one device for vacuuming and filling with helium according to claim 4, characterized in that: A vacuum pump (17) is installed on the connecting pipe (3), a processing pipe (18) is provided between the vacuum pump (17) and the connecting pipe (3), and a vacuum sensor (19) is installed on the connecting pipe (3).

6. A two-in-one device for vacuuming and filling with helium according to claim 5, characterized in that: A base (20) is installed below the vacuum machine (1) and the air storage box (4), and a plurality of rolling wheels (21) are installed on the lower end surface of the base (20).

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