Vacuum degree monitoring device for aluminizing equipment

Abstract

The utility model relates to the technical field of aluminizing equipment, and discloses a vacuum degree monitoring device for aluminizing equipment, which comprises an aluminizing machine, the left side of the aluminizing machine is fixedly connected with a barometer I, the rear end of the aluminizing machine is fixedly connected with a connecting pipe I, and the rear end of the connecting pipe I is fixedly connected with a connecting pipe II. According to the vacuum degree monitoring device for the aluminum plating equipment, the two butted pipelines are reinforced and locked through the reinforcing assembly, the sealing performance is improved, so that the vacuumizing efficiency of the aluminum plating equipment is kept, the placing groove corresponds to flanges of the two butted pipelines during installation, the flanges are covered with the upper fixing shell and the lower fixing shell, and the sealing performance is improved. And the second screw rod is rotated to be inserted into the groove, the second tightening rod is rotated to drive the rotating ring to rotate, the rotating ring moves downwards along the second screw rod until the rotating ring presses the upper fixing shell and the lower fixing shell, the first tightening rod is rotated to drive the first screw rod to rotate, the first screw rod is in threaded connection with the upper fixing shell until the pressing block presses flanges of the two pipelines, and the sealing performance is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of aluminizing equipment, in particular to a device for monitoring the vacuum degree of aluminizing equipment. Background Technique

[0002] An aluminizing machine is a device specifically used for coating an aluminum layer on the surface of an object, usually used to improve the appearance of materials, increase their corrosion resistance or improve their thermal conductivity. The vacuum chamber is used to accommodate the aluminizing process to ensure that the coating operation is carried out in a high-vacuum environment; the vacuum system includes a vacuum pumping device, a gas control and treatment device, which are used to maintain an appropriate working vacuum degree. Since vacuum pumping is required during operation, a device for monitoring the vacuum degree of aluminizing equipment is proposed to improve the operation efficiency.

[0003] Chinese Utility Model Patent Publication No.: CN 215757574 U, discloses: a device for accelerating the vacuum pumping speed of an aluminizing machine and saving energy consumption. For this device for accelerating the vacuum pumping speed of an aluminizing machine and saving energy consumption, the vacuum exchange chamber is directly connected to the vacuum chamber through the third pipeline, and pressure exchange can be carried out until the internal pressures of the two reach equilibrium, without the need to use an external power mechanism for assistance, which can effectively save power consumption. However, for this device for accelerating the vacuum pumping speed of an aluminizing machine and saving energy consumption, by setting the form of a single vacuum chamber to accelerate the vacuum pumping speed, the improvement of the vacuum pumping rate is limited, and when the vacuum chamber and the booster pump are under maintenance, aluminizing operations cannot be carried out, affecting the work efficiency. Summary of the Invention

[0004] The technical problem to be solved by the utility model is to provide a device for monitoring the vacuum degree of aluminizing equipment, which can effectively solve the problems in the prior art.

[0005] The technical solution adopted by the utility model is: a device for monitoring the vacuum degree of aluminizing equipment, including an aluminizing machine, a pressure gauge one is fixedly connected to the left side of the aluminizing machine, a connecting pipe one is fixedly connected to the rear end of the aluminizing machine, a connecting pipe two is fixedly connected to the rear end of the connecting pipe one, a reinforcement component is arranged on the outer sides of the connecting pipe one and the connecting pipe two, a solenoid valve one is fixedly connected to the outer side of the connecting pipe two, the output end of a cold trap machine one is fixedly connected to the lower end of the connecting pipe two, the input end of the cold trap machine one is fixedly connected to a suction pipe one, the output end of a Roots pump is fixedly connected to the lower end of the suction pipe one, a connecting pipe three is fixedly connected to the rear end of the aluminizing machine, a connecting pipe four is fixedly connected to the rear end of the connecting pipe three, a solenoid valve two is fixedly connected to the outer side of the connecting pipe four, a vacuum chamber is fixedly connected to the right side of the connecting pipe four, a pressure gauge two is fixedly connected to the outer side of the vacuum chamber, a connecting pipe five is fixedly connected to the right side of the vacuum chamber, the output end of a cold trap machine two is fixedly connected to the lower end of the connecting pipe five, the input end of the cold trap machine two is fixedly connected to a suction pipe two, and the output end of a diffusion pump is fixedly connected to the lower end of the suction pipe two.

[0006] Preferably, the reinforcement component includes an upper fixing shell, a connecting plate, a placement groove, an inclined surface, a pressing block, a first screw, a first tightening rod, an upper locking member, a groove, a lower fixing shell, a lower locking member, a rotating shaft, a second screw, a rotating ring and a second tightening rod. A connecting plate is provided at the rear end of the upper fixing shell. A placement groove is formed at the lower end of the upper fixing shell. An inclined surface is formed on the left side of the placement groove. A pressing block is arranged inside the placement groove. The pressing block is rotatably connected to the first screw on the left side. A first tightening rod is arranged on the outer side of the first screw. The front end of the upper fixing shell is fixedly connected to the upper locking member. A groove is formed at the front end of the upper locking member. The lower fixing shell is arranged below the upper fixing shell. The front end of the lower fixing shell is fixedly connected to the lower locking member. The center of the lower locking member is rotatably connected to the rotating shaft. The second screw is fixedly connected to the outer side of the rotating shaft. A second tightening rod is arranged on the outer side of the second screw.

[0007] Through the above technical solution, a reinforcement component is provided. The two butted pipelines are reinforced and locked through the reinforcement component, the sealing performance is improved, and thus the vacuum pumping efficiency of the aluminizing equipment is maintained.

[0008] Preferably, the placement groove and the pressing block are in sliding connection, the first screw and the upper fixing shell are in threaded connection, and the structures of the upper fixing shell and the lower fixing shell are symmetric and the same.

[0009] Through the above technical solution, the placement groove and the pressing block are provided. The placement groove is aligned with the flanges of the two butted pipelines. The upper fixing shell and the lower fixing shell are covered outside the flanges. During this process, the inclined surface guides the installation.

[0010] Preferably, the first tightening rod and the first screw are in sliding connection, and the second tightening rod and the rotating ring are in sliding connection.

[0011] Through the above technical solution, the first tightening rod and the first screw are in sliding connection, and the second tightening rod and the rotating ring are in sliding connection. When tightening, the tightening effect is improved through the lever principle, and the operation can also be carried out in a small space, which is very practical.

[0012] Preferably, the diameter of the second screw is smaller than the width of the rotating ring, and the second screw and the rotating ring are in threaded connection.

[0013] Through the above technical solution, after the upper fixing shell and the lower fixing shell are covered outside the flanges, rotate the second screw to insert the second screw into the groove. Rotate the second tightening rod to drive the rotating ring to rotate. The rotating ring moves downward along the second screw until the rotating ring presses the upper fixing shell and the lower fixing shell tightly. Rotate the first tightening rod to drive the first screw to rotate. The first screw is in threaded connection with the upper fixing shell, and the pressing block moves inward along with the first screw until the flanges of the two pipelines are pressed tightly, improving the sealing performance, and the operation is simple.

[0014] Preferably, the structures of the first cold trap machine and the second cold trap machine are the same.

[0015] Through the above technical solution, a cold trap machine one and a cold trap machine two are provided. By quickly condensing and removing high-boiling-point vapors such as water vapor and oil vapor, the time for evacuating the vacuum is greatly shortened, and the working efficiency is improved. During use, the vacuum evacuation operation can be carried out according to requirements. When medium and low vacuum pumping is required, solenoid valve one is opened, solenoid valve two is closed, cold trap machine one and the Roots pump are started, and the aluminizing machine is evacuated to medium and low vacuum. When high vacuum pumping is required, cold trap machine two and the diffusion pump are started to evacuate the vacuum chamber. When the barometer two shows that the air pressure value reaches an appropriate range, solenoid valve one and the Roots pump are closed, solenoid valve two is opened, and air pressure exchange is carried out between the vacuum chamber and the aluminizing machine. After the exchange is completed, solenoid valve two is closed, solenoid valve one and the Roots pump are started, the Roots pump continues to evacuate, and the diffusion pump continues to evacuate the vacuum chamber. The Roots pump and the diffusion pump cooperate to continuously carry out the vacuum evacuation operation until an appropriate air pressure value is reached, and the vacuum evacuation efficiency is high.

[0016] Preferably, the outer shape of the vacuum chamber is a cylindrical structure.

[0017] Through the above technical solution, the outer shape of the vacuum chamber is a cylindrical structure, and it has strong load resistance.

[0018] Compared with the prior art, the present utility model provides a device for monitoring the vacuum degree of an aluminizing device, which has the following beneficial effects:

[0019] 1. For the device for monitoring the vacuum degree of the aluminizing device, a reinforcement component is provided. The two butt joint pipelines are reinforced and locked through the reinforcement component, and the sealing performance is improved, so as to maintain the vacuum evacuation efficiency of the aluminizing device. During installation, the placement groove is aligned with the flanges of the two butt joint pipelines, and the upper fixing shell and the lower fixing shell are covered outside the flanges. During this process, the inclined plane guides the installation. After the upper fixing shell and the lower fixing shell are covered outside the flanges, rotate screw two so that screw two is inserted into the groove, rotate the tightening rod two to drive the rotating ring to rotate, and the rotating ring moves downward along screw two until the rotating ring presses the upper fixing shell and the lower fixing shell tightly. Rotate the tightening rod one to drive screw one to rotate. Screw one is threadedly connected with the upper fixing shell, and the pressing block moves inward along with screw one until the flanges of the two pipelines are pressed tightly, improving the sealing performance. The operation is simple. The tightening rod one and screw one are in sliding connection, and the tightening rod two and the rotating ring are in sliding connection. When tightening, the tightening effect is improved through the lever principle, and the operation can also be carried out in a small space, which is very practical;

[0020] 2. The aluminizing equipment monitoring vacuum degree device is provided with a cold trap machine 1 and a cold trap machine 2. By quickly condensing and removing high-boiling-point vapors such as water vapor and oil vapor, the time for vacuum pumping is greatly shortened, and the working efficiency is improved. During use, vacuum pumping operations can be carried out according to requirements. When medium and low vacuum pumping is required, solenoid valve 1 is opened, solenoid valve 2 is closed, cold trap machine 1 and the Roots pump are started, and medium and low vacuum pumping is carried out on the aluminizing machine. When high vacuum pumping is required, cold trap machine 2 and the diffusion pump are started to pump the vacuum chamber. When the barometer 2 shows that the air pressure value reaches an appropriate range, solenoid valve 1 and the Roots pump are closed, solenoid valve 2 is opened, and air pressure exchange is carried out between the vacuum chamber and the aluminizing machine. After the exchange is completed, solenoid valve 2 is closed, solenoid valve 1 and the Roots pump are started, the Roots pump continues to pump air, and the diffusion pump continues to pump the vacuum chamber. The Roots pump and the diffusion pump cooperate to continuously carry out vacuum pumping operations until an appropriate air pressure value is reached, and the vacuum pumping efficiency is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 Schematic diagram of the three-dimensional structure of the present utility model Figure 1 ;

[0022] Figure 2 Schematic diagram of the three-dimensional structure of the present utility model Figure 2 ;

[0023] Figure 3 Schematic diagram of the enlarged structure of the reinforcement component of the present utility model Figure 1 ;

[0024] Figure 4 Schematic diagram of the enlarged structure of the reinforcement component of the present utility model Figure 2 ;

[0025] Figure 5 Schematic diagram of the enlarged structure of the reinforcement component of the present utility model Figure 3 。

[0026] Wherein: 1. Aluminizing machine; 2. Barometer 1; 3. Connecting pipe 1; 4. Connecting pipe 2; 5. Reinforcement component; 501. Upper fixing shell; 502. Connecting plate; 503. Placing groove; 504. Inclined surface; 505. Pressing block; 506. Screw rod 1; 507. Tightening rod 1; 508. Upper locking member; 509. Groove; 510. Lower fixing shell; 511. Lower locking member; 512. Rotating shaft; 513. Screw rod 2; 514. Rotating ring; 515. Tightening rod 2; 6. Solenoid valve 1; 7. Cold trap machine 1; 8. Suction pipe 1; 9. Roots pump; 10. Connecting pipe 3; 11. Connecting pipe 4; 12. Solenoid valve 2; 13. Vacuum chamber; 14. Barometer 2; 15. Connecting pipe 5; 16. Cold trap machine 2; 17. Suction pipe 2; 18. Diffusion pump. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0028] Embodiment 1: As Figures 1-5 shown, a device for monitoring the vacuum degree of an aluminizing device provided by the present utility model includes an aluminizing machine 1. A pressure gauge 1 is fixedly connected to the left side of the aluminizing machine 1. A connecting pipe 1 is fixedly connected to the rear end of the aluminizing machine 1. A connecting pipe 2 is fixedly connected to the rear end of the connecting pipe 1. A reinforcing component 5 is arranged on the outer sides of the connecting pipe 1 and the connecting pipe 2. A solenoid valve 1 is fixedly connected to the outer side of the connecting pipe 2. The output end of a cold trap machine 1 is fixedly connected to the lower end of the connecting pipe 2. The input end of the cold trap machine 1 is fixedly connected to a suction pipe 1. The output end of a Roots pump 9 is fixedly connected to the lower end of the suction pipe 1. A connecting pipe 3 is fixedly connected to the rear end of the aluminizing machine 1. A connecting pipe 4 is fixedly connected to the rear end of the connecting pipe 3. A solenoid valve 2 is fixedly connected to the outer side of the connecting pipe 4. A vacuum chamber 1 is fixedly connected to the right side of the connecting pipe 4. A pressure gauge 2 is fixedly connected to the outer side of the vacuum chamber 1. A connecting pipe 5 is fixedly connected to the right side of the vacuum chamber 1. The output end of a cold trap machine 2 is fixedly connected to the lower end of the connecting pipe 5. The input end of the cold trap machine 2 is fixedly connected to a suction pipe 2. The output end of a diffusion pump 18 is fixedly connected to the lower end of the suction pipe 2.

[0029] Specifically, the reinforcing component 5 includes an upper fixing shell 501, a connecting plate 502, a placement groove 503, an inclined surface 504, a pressing block 505, a screw rod 1 506, a tightening rod 1 507, an upper locking part 508, a groove 509, a lower fixing shell 510, a lower locking part 511, a rotating shaft 512, a screw rod 2 513, a rotating ring 514, and a tightening rod 2 515. A connecting plate 502 is arranged at the rear end of the upper fixing shell 501. A placement groove 503 is opened at the lower end of the upper fixing shell 501. An inclined surface 504 is opened on the left side of the placement groove 503. A pressing block 505 is arranged inside the placement groove 503. A screw rod 1 506 is rotatably connected to the left side of the pressing block 505. A tightening rod 1 507 is arranged on the outer side of the screw rod 1 506. An upper locking part 508 is fixedly connected to the front end of the upper fixing shell 501. A groove 509 is opened at the front end of the upper locking part 508. A lower fixing shell 510 is arranged below the upper fixing shell 501. A lower locking part 511 is fixedly connected to the front end of the lower fixing shell 510. A rotating shaft 512 is rotatably connected to the center of the lower locking part 511. A screw rod 2 513 is fixedly connected to the outer side of the rotating shaft 512. A tightening rod 2 515 is arranged on the outer side of the screw rod 2 513. The advantage is that the reinforcing component 5 is provided. The two butt-jointed pipelines are reinforced and locked through the reinforcing component 5, the sealing performance is improved, and thus the vacuum pumping efficiency of the aluminizing device is maintained.

[0030] Specifically, the placement groove 503 and the pressing block 505 are in sliding connection, the first screw rod 506 and the upper fixed shell 501 are in threaded connection, and the structures of the upper fixed shell 501 and the lower fixed shell 510 are symmetrically the same. The advantage is that the placement groove 503 and the pressing block 505 are provided. The placement groove 503 corresponds to the flanges of the two butted pipelines. The upper fixed shell 501 and the lower fixed shell 510 are covered outside the flanges. During this process, the inclined surface 504 guides the installation.

[0031] Specifically, the first tightening rod 507 and the first screw rod 506 are in sliding connection, and the second tightening rod 515 and the rotating ring 514 are in sliding connection. The advantage is that the first tightening rod 507 and the first screw rod 506 are in sliding connection, and the second tightening rod 515 and the rotating ring 514 are in sliding connection. When tightening, the tightening effect is improved through the lever principle, and the operation can also be carried out in a small space, which is very practical.

[0032] Embodiment 2: As Figures 2-5 shown, as an improvement to the previous embodiment.

[0033] Specifically, the diameter of the second screw rod 513 is smaller than the width of the rotating ring 514, and the second screw rod 513 and the rotating ring 514 are in threaded connection. The advantage is that after the upper fixed shell 501 and the lower fixed shell 510 are covered outside the flanges, rotate the second screw rod 513 to insert the second screw rod 513 into the groove 509, rotate the second tightening rod 515 to drive the rotating ring 514 to rotate, and the rotating ring 514 moves downward along the second screw rod 513 until the rotating ring 514 presses the upper fixed shell 501 and the lower fixed shell 510 tightly. Rotate the first tightening rod 507 to drive the first screw rod 506 to rotate. The first screw rod 506 is in threaded connection with the upper fixed shell 501, and the pressing block 505 moves inward with the first screw rod 506 until the flanges of the two pipelines are pressed tightly, improving the sealing performance and the operation is simple.

[0034] Specifically, the structures of the first cold trap machine 7 and the second cold trap machine 16 are the same. The advantages are that the first cold trap machine 7 and the second cold trap machine 16 are provided. By quickly condensing and removing high-boiling-point vapors such as water vapor and oil vapor, the time for evacuating the vacuum is greatly shortened, and the working efficiency is improved. During use, the vacuum evacuation operation can be carried out according to requirements. When medium and low vacuum pumping is required, the first solenoid valve 6 is opened, the second solenoid valve 12 is closed, the first cold trap machine 7 and the Roots pump 9 are started, and the aluminizing machine 1 is pumped with medium and low vacuum. When high vacuum pumping is required, the second cold trap machine 16 and the diffusion pump 18 are started to evacuate the vacuum chamber 13. When the barometer 2 shows that the air pressure value reaches an appropriate range, the first solenoid valve 6 and the Roots pump 9 are closed, the second solenoid valve 12 is opened, and the air pressure exchange between the vacuum chamber 13 and the aluminizing machine 1 is carried out. After the exchange is completed, the second solenoid valve 12 is closed, the first solenoid valve 6 and the Roots pump 9 are started, the Roots pump 9 continues to pump air, and the diffusion pump 18 continues to evacuate the vacuum chamber 13. The Roots pump 9 and the diffusion pump 18 cooperate to continuously carry out the vacuum evacuation operation until an appropriate air pressure value is reached, and the vacuum evacuation efficiency is high.

[0035] Specifically, the outer shape of the vacuum chamber 13 is a cylindrical structure. The advantage is that the outer shape of the vacuum chamber 13 is a cylindrical structure, and it has strong load-bearing capacity.

[0036] Working principle: During assembly, the two butted pipelines are reinforced and locked by the reinforcement component 5 to improve the sealing performance, thereby maintaining the vacuum pumping efficiency of the aluminizing equipment. During installation, the placement groove 503 is aligned with the flanges of the two butted pipelines, and the upper fixed shell 501 and the lower fixed shell 510 are placed outside the flanges. During this process, the inclined surface 504 guides the installation. After the upper fixed shell 501 and the lower fixed shell 510 are placed outside the flanges, rotate the second screw 513 so that the second screw 513 is inserted into the groove 509, and rotate the tightening rod two 515 to drive the rotating ring 514 to rotate. The rotating ring 514 moves downward along the second screw 513 until the rotating ring 514 presses the upper fixed shell 501 and the lower fixed shell 510 tightly. Rotate the tightening rod one 507 to drive the first screw 506 to rotate. The first screw 506 is threadedly connected to the upper fixed shell 501, and the pressing block 505 moves inward along with the first screw 506 until the flanges of the two pipelines are pressed tightly, improving the sealing performance. The operation is simple. The tightening rod one 507 and the first screw 506 are slidably connected, and the tightening rod two 515 and the rotating ring 514 are slidably connected. The locking effect is improved through the lever principle during locking, and the operation can also be carried out in a small space, which is very practical. During use, vacuum pumping operations can be carried out according to requirements. When medium and low vacuum pumping is required, open the first solenoid valve 6, close the second solenoid valve 12, start the first cold trap machine 7 and the Roots pump 9, and pump the aluminizing machine 1 to medium and low vacuum. When high vacuum pumping is required, start the second cold trap machine 16 and the diffusion pump 18 to pump the vacuum chamber 13. When the barometer two 14 shows that the air pressure value reaches an appropriate range, close the first solenoid valve 6 and the Roots pump 9, open the second solenoid valve 12, and perform air pressure exchange between the vacuum chamber 13 and the aluminizing machine 1. After the exchange is completed, close the second solenoid valve 12, start the first solenoid valve 6 and the Roots pump 9, and the Roots pump 9 continues to pump air, and the diffusion pump 18 continues to pump the vacuum chamber 13. The Roots pump 9 and the diffusion pump 18 cooperate to continuously carry out vacuum pumping operations until an appropriate air pressure value is reached. The vacuum pumping efficiency is high. The first cold trap machine 7 and the second cold trap machine 16 can quickly condense and remove high-boiling-point vapors such as water vapor and oil vapor, thereby greatly shortening the vacuum pumping time and improving work efficiency.

[0037] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A vacuum monitoring device for aluminum plating equipment, comprising an aluminum plating machine (1), characterized in that: The left side of the aluminum plating machine (1) is fixedly connected to a barometer 1 (2); the rear end of the aluminum plating machine (1) is fixedly connected to a connecting pipe 1 (3); the rear end of the connecting pipe 1 (3) is fixedly connected to a connecting pipe 2 (4); the outer sides of the connecting pipe 1 (3) and the connecting pipe 2 (4) are provided with a reinforcement component (5); the outer side of the connecting pipe 2 (4) is fixedly connected to a solenoid valve 1 (6); the lower end of the connecting pipe 2 (4) is fixedly connected to the output end of a cold trap machine 1 (7); the input end of the cold trap machine 1 (7) is fixedly connected to a suction pipe 1 (8); the lower end of the suction pipe 1 (8) is fixedly connected to the output end of a Roots pump (9); the rear end of the aluminum plating machine (1) is fixedly connected to a connecting pipe 1 (3); the lower end of the connecting pipe 1 (3) is fixedly connected to the output end of a Roots pump (9); A connecting pipe 3 (10) is connected to a connecting pipe 4 (11) at the rear end thereof, a solenoid valve 2 (12) is fixedly connected to the outer side of the connecting pipe 4 (11), a vacuum chamber (13) is fixedly connected to the right side of the connecting pipe 4 (11), a barometer 2 (14) is fixedly connected to the outer side of the vacuum chamber (13), a connecting pipe 5 (15) is fixedly connected to the right side of the vacuum chamber (13), a lower end of the connecting pipe 5 (15) is fixedly connected to the output end of a cold trap machine 2 (16), an input end of the cold trap machine 2 (16) is fixedly connected to a suction pipe 2 (17), and a lower end of the suction pipe 2 (17) is fixedly connected to the output end of a diffusion pump (18).

2. The device for monitoring vacuum degree of aluminum plating equipment according to claim 1, characterized in that: The reinforcement assembly (5) comprises an upper fixed shell (501), a connecting plate (502), a placement groove (503), an inclined surface (504), a pressing block (505), a screw rod (506), a tightening rod (507), an upper locking piece (508), a groove (509), a lower fixed shell (510), a lower locking piece (511), a rotating shaft (512), a screw rod (513), a rotating ring (514) and a tightening rod (515). The upper fixed shell (501) is provided with a connecting plate (502) at the rear end, a placement groove (503) is provided at the lower end of the upper fixed shell (501), a inclined surface (504) is provided on the left side of the placement groove (503), and a pressing block is provided inside the placement groove (503). (505), the left side of the pressing block (505) is rotatably connected to a screw rod (506), and a tightening rod (507) is arranged on the outer side of the screw rod (506). The front end of the upper fixed shell (501) is fixedly connected to an upper locking piece (508), and a groove (509) is provided on the front end of the upper locking piece (508). A lower fixed shell (510) is arranged below the upper fixed shell (501), and the front end of the lower fixed shell (510) is fixedly connected to a lower locking piece (511), and the center of the lower locking piece (511) is rotatably connected to a rotating shaft (512), and the outer side of the rotating shaft (512) is fixedly connected to a screw rod (513), and a tightening rod (515) is arranged on the outer side of the screw rod (513).

3. The device for monitoring vacuum degree of aluminum plating equipment according to claim 2, characterized in that: The placement groove (503) and the pressing block (505) are slidably connected, the screw rod (506) and the upper fixed shell (501) are threadedly connected, and the structures of the upper fixed shell (501) and the lower fixed shell (510) are symmetrical and identical.

4. The device for monitoring vacuum degree of aluminum plating equipment according to claim 3, characterized in that: The tightening rod 1 (507) is slidably connected to the screw rod 1 (506), and the tightening rod 2 (515) is slidably connected to the rotating ring (514).

5. The device for monitoring vacuum degree of aluminum plating equipment according to claim 4, characterized in that: The diameter of the second screw rod (513) is smaller than the width of the rotating ring (514), and the second screw rod (513) and the rotating ring (514) are threadedly connected.

6. The device for monitoring vacuum degree of aluminum plating equipment according to claim 1, characterized in that: The structure of the cold trap machine 1 (7) is the same as that of the cold trap machine 2 (16).

7. The device for monitoring vacuum degree of aluminum plating equipment according to claim 5, characterized in that: The vacuum chamber (13) has a cylindrical structure in appearance.

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