A sealing structure for a glove box and a transition compartment

Abstract

This utility model discloses a sealing structure for a glove box and a transition chamber, relating to the field of glove box technology. It includes a transition chamber with openings at both ends. A placement cylinder with openings on its sides is rotatably installed inside the transition chamber. Strip-shaped openings are provided on both sides of the transition chamber near its ends, and a matching baffle is slidably installed within each of the two strip-shaped openings. A driving mechanism is also provided on the transition chamber. This driving mechanism can not only control the baffles to close the transition chamber, but also control the rotation of the placement cylinder to rotate the workpiece to the glove box port. Thus, sealing and rotation operations can be completed using a single electrical component, reducing the amount of electrical components used, lowering the device's damage rate, increasing its service life, and reducing maintenance frequency. Simultaneously, the structure is simple and the manufacturing cost is low. Furthermore, after the workpiece is placed in the placement cylinder, a vacuum nozzle combined with a vacuum pump is used to remove dust from the workpiece surface, preventing dust on the workpiece surface from being sucked in by the air source and causing damage.

Description

Technical Field

[0001] This utility model relates to the field of glove box technology, and in particular to a sealing structure between a glove box and a transition compartment. Background Technology

[0002] Vacuum glove boxes, also known simply as glove boxes, are commonly used devices that provide a sealed space and environment. They are widely used in factories, laboratories, and analytical rooms. By filling them with high-purity inert gas and circulating and filtering out reactive substances such as oxygen and moisture, materials can be safely placed in and taken out, and operations, reactions, and tests can be carried out freely in an oxygen-free and water-free environment. Currently, existing glove boxes mainly consist of a glove box body and a transition chamber. The transition chamber needs to be equipped with a sealing structure to ensure that external gases cannot enter the glove box body during the placement of workpieces.

[0003] The patent website discloses a sealing structure for a glove box and transition compartment (publication announcement number: CN220373312U). This prior art uses a motor to drive a rotating rod to rotate, which presses against a connecting plate, making the contact and the contact seat completely fit together. An electric cylinder drives the sealing door to move upward, allowing items to be placed in. Then, the contact and the contact seat separate, air is extracted, and high-purity inert gas is injected. A disc is placed to transfer the items into the glove box body, thereby preventing outside air from entering the glove box body and preventing product oxidation.

[0004] However, there are still some shortcomings in the sealing structures of the aforementioned patents and existing markets: the existing technology uses a motor to control the rotation of a rotating disc and an arc-shaped baffle to rotate the object to the glove box port, and uses an electric cylinder to control the lifting of the sealing door. Setting up multiple electrical appliances makes the device too complex, increases the possibility of damage, and makes the device very easy to damage during use, requiring frequent maintenance. At the same time, the general electrical appliances are expensive, increasing the manufacturing cost of the device. Therefore, those skilled in the art have proposed a sealing structure for the glove box and the transition chamber. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a sealing structure for a glove box and a transition compartment, solving the problems mentioned in the background section.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: a sealing structure for a glove box and a transition chamber, comprising a transition chamber with openings at both ends, a placement cylinder with openings on its sides being rotatably installed inside the transition chamber, and two sealing blocks that are symmetrically installed on the inner wall of the transition chamber and are in close contact with the sides of the placement cylinder.

[0007] The transition chamber has strip-shaped openings on both sides near the ends, and a baffle adapted to it is slidably installed in both strip-shaped openings.

[0008] The transition chamber is also equipped with a drive mechanism, which includes an electric cylinder installed on the lower side of the transition chamber. The end of the electric cylinder is equipped with a U-shaped plate connected to one side of the baffle. The lower rotating shaft of the placement cylinder extends to the outside of the transition chamber and is equipped with a gear. A rack is installed on the side of the U-shaped plate that is compatible with the gear. When the baffle is fully inserted into the two slots, the rack meshes with the gear.

[0009] As a further technical solution of this utility model, an inverted T-shaped metal tee is provided near the top of the placement tube, and vertical pipes are installed at both ends of the lower part of the metal tee. A set of evenly distributed dust suction nozzles facing the center of the placement tube are installed on the side of the vertical pipe.

[0010] As a further technical solution of this utility model, the upper pipe of the metal tee pipe extends through the top plate of the placement cylinder to the outside of the transition chamber. A dust pump is installed on the upper side of the transition chamber. The input end of the dust pump is equipped with a connecting pipe whose end is rotatably connected to the upper end of the metal tee pipe. The output end of the dust pump is equipped with an output pipe.

[0011] As a further technical solution of this utility model, a second gear is installed on the side of the metal tee tube outside the transition chamber, and a rack two that meshes with the second gear is installed on the side of the first gear.

[0012] As a further technical solution of this utility model, a vacuum pump with its input end connected to the transition chamber pipeline is installed on the upper side of the transition chamber on the side of the dust pump, and an input pipe is opened on the upper side of the transition chamber on the side of the vacuum pump, and a second solenoid valve is installed on the input pipe.

[0013] As a further technical solution of this utility model, a flange is installed at the other end of the transition chamber, and the side of the flange is rectangular with four fixing holes.

[0014] This utility model provides a sealing structure for a glove box and a transition compartment, which has the following advantages compared with the prior art:

[0015] 1. The sealing structure of the glove box and transition chamber designed in this paper can not only control the baffle to close the transition chamber through the drive mechanism, but also control the rotation of the placement cylinder to rotate the workpiece to the glove box port. Thus, the sealing and rotation operations can be completed by a single electrical appliance, reducing the amount of electrical appliances used, reducing the damage rate of the device, increasing the service life of the device, reducing the frequency of maintenance, and at the same time, the structure is simple and the manufacturing cost is low.

[0016] 2. This design features a sealing structure for a glove box and a transition chamber. After the workpiece is placed in the placement cylinder, a dust suction nozzle is used in conjunction with a dust pump to remove dust from the workpiece surface, preventing dust on the workpiece surface from being sucked in by the air extraction source and causing damage. Meanwhile, the rotation power of the dust suction nozzle still comes from the electric cylinder, achieving multiple uses for one cylinder. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of a sealing structure for a glove box and a transition compartment;

[0018] Figure 2 A schematic diagram of the drive mechanism structure for a sealing structure of a glove box and a transition compartment;

[0019] Figure 3 This is a schematic diagram of the internal structure of a sealed structure for a glove box and a transition compartment;

[0020] Figure 4 This is a schematic diagram of a dust collection assembly with a sealed structure for a glove box and a transition chamber.

[0021] In the diagram: 1. Transition chamber; 2. Placement cylinder; 3. Drive mechanism; 301. Electric cylinder; 302. U-shaped plate; 303. Gear 1; 304. Rack 1; 4. Strip-shaped opening; 5. Baffle; 6. Metal tee pipe; 7. Vertical pipe; 8. Dust suction nozzle; 9. Dust pump; 10. Connecting pipe; 11. Solenoid valve 1; 12. Output pipe; 13. Gear 2; 14. Rack 2; 15. Vacuum pump; 16. Input pipe; 17. Solenoid valve 2; 18. Flange; 19. Fixing hole; 20. Sealing block. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-4This utility model provides a sealing structure technical solution for a glove box and a transition chamber: it includes a transition chamber 1 with openings at both ends, a placement cylinder 2 with openings on the sides rotatably installed inside the transition chamber 1, two sealing blocks 20 symmetrically installed on the inner wall of the transition chamber 1 and tightly attached to the sides of the placement cylinder 2, and a flange 18 installed at the other end of the transition chamber 1. The side of the flange 18 has four rectangular fixing holes 19. The end of the transition chamber 1 with the flange 18 is aligned with the input end of the glove box, and the device is fixed to the glove box by bolts using all the fixing holes 19. The side of the placement cylinder 2 and the two sealing blocks 20 can block the inside of the transition chamber 1.

[0024] like Figure 1 and Figure 2 As shown, the transition chamber 1 has slotted openings 4 on both sides near its ends. A matching baffle 5 is slidably installed within each slotted opening 4. The transition chamber 1 also has a drive mechanism 3, which includes an electric cylinder 301 mounted on the lower side of the transition chamber 1. A U-shaped plate 302 connected to one side of the baffle 5 is mounted on the end of the electric cylinder 301. A rotating shaft on the lower side of the placement cylinder 2 extends to the outside of the transition chamber 1 and is fitted with a gear 303. A rack 304, matching the gear 303, is mounted on the side of the U-shaped plate 302. When the baffle 5 is fully inserted into the two slotted openings 4, the rack 304 meshes with the gear 303. When the port of the transition chamber 1 is opened, the workpiece is placed... The workpiece is placed into the placement cylinder 2. Then, the electric cylinder 301 shortens and drives the baffle 5 through the U-shaped plate 302 to insert into the same side strip opening 4 and move towards the other strip opening 4. When it is inserted into the other strip opening 4, the port of the transition chamber 1 is closed. At this time, the gear 303 meshes with the rack 304. Then, the air in the transition chamber 1 is extracted and inert gas is injected. The electric cylinder 301 continues to shorten and drives the gear 303 to rotate through the rack 304. When the electric cylinder 301 is retracted to its shortest length, the opening of the placement cylinder 2 is facing the flange 18. The workpiece is moved into the glove box. During the rotation of the placement cylinder 2, the baffle 5 always covers the port of the transition chamber 1 and keeps it closed.

[0025] It should be noted that the inner wall of the strip-shaped opening 4 and the surface of the baffle 5 are both equipped with sealing films to ensure airtightness. At the same time, the placement cylinder 2 and the two sealing blocks 20 can be used to block the inside of the transition chamber 1, preventing outside air from entering the glove box when the port of the transition chamber 1 is opened.

[0026] like Figure 1 and Figure 4As shown, an inverted T-shaped metal tee pipe 6 is installed near the top inside the placement cylinder 2. Vertical pipes 7 are installed at both ends of the lower part of the metal tee pipe 6. A set of evenly distributed suction nozzles 8 facing the center of the placement cylinder 2 are installed on the side of the vertical pipes 7. The upper pipe of the metal tee pipe 6 extends through the top plate of the placement cylinder 2 to the outside of the transition chamber 1. A dust pump 9 is installed on the upper side of the transition chamber 1. A connecting pipe 10 is installed at the input end of the dust pump 9, with its end rotatably connected to the upper end of the metal tee pipe 6. An output pipe 12 is installed at the output end of the dust pump 9. A gear 2 303 is installed on the side of the metal tee pipe 6 outside the transition chamber 1. A gear 13 is installed on the side of the gear 1 303 that corresponds to the gear teeth. The rack 14 meshes with the gear 2 13. During installation, the output pipe 12 is inserted into the trash can. When the electric cylinder 301 shortens, it will also drive the rack 2 14 to move. The gear 2 13 drives the metal tee pipe 6, the vertical pipe 7 and the two sets of dust suction nozzles 8 to rotate. At the same time, the dust suction pump 9 is turned on, so that negative pressure is generated at the ports of each dust suction nozzle 8. The two sets of rotating dust suction nozzles 8 are used to suck away the dust on the surface of the workpiece. Then, the dust is sent into the trash can through the output pipe 12 to clean the dust on the workpiece. This avoids the dust being drawn into the air extraction source when the air in the transition chamber 1 is being extracted, which would cause damage to the workpiece. Afterwards, when the air extraction source is extracting air from the transition chamber 1, the connecting pipe 10 is closed by the solenoid valve 11.

[0027] like Figure 1 and Figure 3 As shown, a vacuum pump 15 is installed on the upper side of the transition chamber 1, with its input end connected to the pipeline of the transition chamber 1, on the side of the dust pump 9. An input pipe 16 is opened on the upper side of the transition chamber 1, on the side of the vacuum pump 15. A solenoid valve 17 is installed on the input pipe 16. The input pipe 16 is connected to the inert gas input end. The vacuum pump 15 can be used to extract the air in the transition chamber 1. The solenoid valve 17 is opened, and inert gas is injected into the transition chamber 1 through the input pipe 16.

[0028] The working principle of this utility model is as follows: Align the end of the transition chamber 1 with the flange 18 with the input end of the glove box, use all the fixing holes 19 on the flange 18 and bolts to fix the device on the glove box, put the end of the output pipe 12 into the trash can, and use the side of the placement cylinder 2 with two sealing blocks 20 to block the inside of the transition chamber 1.

[0029] The workpiece is placed in the placement cylinder 2. Then, the electric cylinder 301 shortens and drives the baffle 5 through the U-shaped plate 302 to insert into the same side strip opening 4 and move towards the other strip opening 4. When it is inserted into the other strip opening 4, the port of the transition chamber 1 is closed.

[0030] When the electric cylinder 301 shortens, it will also drive the rack 2 14 to move. Through the gear 2 13, it will drive the metal tee pipe 6, the vertical pipe 7 and the two sets of dust suction nozzles 8 to rotate. At the same time, the dust suction pump 9 will be turned on, so that negative pressure is generated at the port of each dust suction nozzle 8. The two sets of rotating dust suction nozzles 8 will suck away the dust on the surface of the workpiece and then send it into the trash can through the output pipe 12. When the rack 2 14 disengages from the gear 2 13, the metal tee pipe 6 will rotate exactly 180 degrees. At this time, the baffle 5 will also close the port of the transition chamber 1. The operator will close the connecting pipe 10 through the solenoid valve 11.

[0031] The electric cylinder 301 then continues to shorten, driving the gear 303 to rotate via the rack 304. When the electric cylinder 301 is at its shortest length, the opening of the placement cylinder 2 faces the flange 18, moving the workpiece into the glove box. Then the electric cylinder 301 extends, causing the placement cylinder 2 to reverse. Then the baffle 5 releases the seal on the port of the transition chamber 1, allowing the next operation to proceed.

[0032] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model are implemented according to conventional methods in the art, unless otherwise specified or limited.

Claims

1. A sealing structure for a glove box and a transition compartment, comprising a transition compartment (1) with openings at both ends, wherein a placement cylinder (2) with openings on its sides is rotatably installed inside the transition compartment (1), and two sealing blocks (20) symmetrically installed on the inner wall of the transition compartment (1) and in close contact with the sides of the placement cylinder (2), characterized in that: The transition chamber (1) has strip-shaped openings (4) on both sides near the ends, and baffles (5) adapted to it are slidably arranged in both strip-shaped openings (4); The transition chamber (1) is also provided with a drive mechanism (3). The drive mechanism (3) includes an electric cylinder (301) installed on the lower side of the transition chamber (1). The end of the electric cylinder (301) is equipped with a U-shaped plate (302) connected to one side of the baffle (5). The lower rotating shaft of the placement cylinder (2) extends to the outside of the transition chamber (1) and is equipped with a gear (303). The side of the U-shaped plate (302) is equipped with a rack (304) that is compatible with the gear (303). When the baffle (5) is fully inserted into the two slots (4), the rack (304) meshes with the gear (303).

2. A glove box and transfer chamber seal as claimed in claim 1, wherein, An inverted T-shaped metal tee (6) is provided near the top inside the placement tube (2). Vertical pipes (7) are installed at both ends of the lower part of the metal tee (6). A set of evenly distributed dust suction nozzles (8) facing the center of the placement tube (2) are installed on the side of the vertical pipe (7).

3. A glove box and transfer chamber seal as claimed in claim 2, wherein, The pipe above the metal tee pipe (6) extends through the top plate of the placement cylinder (2) to the outside of the transition chamber (1). A dust pump (9) is installed on the upper side of the transition chamber (1). The input end of the dust pump (9) is equipped with a connecting pipe (10) whose end is rotatably connected to the upper end of the metal tee pipe (6). The output end of the dust pump (9) is equipped with an output pipe (12).

4. The sealing structure for a glove box and a transition compartment according to claim 3, characterized in that, The metal tee tube (6) is equipped with a gear two (13) on the side outside the transition chamber (1), and a rack two (14) that meshes with the gear two (13) is installed on the side of the gear one (303).

5. The sealing structure for a glove box and a transition compartment according to claim 4, characterized in that, A vacuum pump (15) with its input end connected to the pipeline of the transition chamber (1) is installed on the upper side of the transition chamber (1) on the side of the dust pump (9). An input pipe (16) is opened on the upper side of the transition chamber (1) on the side of the vacuum pump (15). A solenoid valve (17) is installed on the input pipe (16).

6. The sealing structure for a glove box and a transition compartment according to claim 5, characterized in that, The other end of the transition chamber (1) is equipped with a flange (18), and the side of the flange (18) is rectangular with four fixing holes (19).

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