Multi-position viewing window for a vacuum apparatus

Abstract

This utility model relates to a multi-position observation window for vacuum equipment, including a window base, a window cover, and a glass window disposed on the window cover and facing the upper end of the vacuum equipment connecting pipe. The key technical features are: multiple connecting structures are evenly distributed along the edges of the window cover and window base; each connecting structure includes a lower support wing on the edge of the window base, an upper support wing on the edge of the window cover, a lower U-shaped opening on the lower support wing, an upper U-shaped opening on the upper support wing, a hinged bolt with its fixed end hinged to the side wall of the lower U-shaped opening and its center inserted into the upper U-shaped opening, and a clamping handwheel connected to the free end of the hinged bolt. The window base and window cover interlock to form an intermediate cavity, and a turntable is provided on the bottom surface of the intermediate cavity. Multiple intermediate viewing windows are evenly distributed around the center line of the turntable. The upper end of the vacuum equipment connecting pipe is located below the rotation path of the intermediate viewing windows. A transmission structure connected to the turntable is provided on the window cover. This utility model simplifies the assembly and disassembly steps and effectively reduces unplanned downtime, ensuring the continuity of the vacuum process.

Description

Technical Field

[0001] This utility model relates to the technical field of vacuum equipment components, specifically to a multi-position observation window for vacuum equipment. Background Technology

[0002] In a vacuum environment, observation windows are essential. They are used to monitor the production process inside the vacuum container (such as observing temperature and material state) and to transmit light. However, observation windows are highly susceptible to contamination: for example, in vacuum smelting furnaces, materials and impurities often undergo three-phase changes, and hot steam will condense when it comes into contact with the cooler quartz glass; in PVD equipment, a film layer can also easily form on the glass surface. While the equipment is running, simple cleaning methods such as blowing and wiping can be used. However, after the equipment is shut down, the observation window needs to be removed for thorough cleaning or replacement.

[0003] However, the following problems exist: 1. The disassembly process of the existing observation window is relatively cumbersome, requiring the removal of the baffle, sealing ring and glass in sequence, cleaning and reassembly; 2. When the observation window is contaminated, the clarity of observation will decrease before the machine is stopped for cleaning. Due to the unclear observation, operators may misjudge the process parameters such as temperature, pressure and vacuum inside the equipment, and then incorrectly adjust the equipment settings, causing the process to deviate from the normal track, which may easily lead to product scrapping, equipment damage and other problems. Utility Model Content

[0004] The purpose of this invention is to provide a multi-position observation window for vacuum equipment that has a reasonable structure and reliable operation to solve the above problems. On the one hand, it simplifies the disassembly and assembly steps, and on the other hand, it effectively reduces unplanned downtime and ensures the continuity of the vacuum process.

[0005] The technical solution of this utility model is: A multi-position observation window for a vacuum device includes a window seat connected to a vacuum device connector, a window cover connected to the window seat, and a glass window disposed on the window cover and facing the upper end of the vacuum device connector. The key technical features are: the edges of the window cover and window seat are uniformly provided with multiple connecting structures; each connecting structure includes a lower support wing disposed on the edge of the window seat, an upper support wing disposed on the edge of the window cover, a lower U-shaped opening on the lower support wing, an upper U-shaped opening on the upper support wing, a hinged bolt with its fixed end hinged to the side wall of the lower U-shaped opening and its center inserted into the upper U-shaped opening, and a clamping handwheel connected to the free end of the hinged bolt; the window seat and window cover interlock to form an intermediate cavity; a turntable is provided on the bottom surface of the intermediate cavity; multiple intermediate viewing windows are uniformly disposed around the turntable's center line; the upper end of the vacuum device connector is located below the rotation path of the intermediate viewing windows; and a transmission structure connected to the turntable is provided on the window cover.

[0006] The aforementioned multi-position observation window for vacuum equipment has a limiting stop at the center of the lower surface of the turntable, and a groove corresponding to the limiting stop is provided on the upper surface of the window seat. A rotating bracket concentric with the groove is also provided, and multiple small steel balls that contact the lower surface of the turntable are embedded in the rotating bracket.

[0007] The aforementioned multi-position observation window for vacuum equipment has O-rings arranged around the perimeter of the window seat and window cover corresponding to the central cavity.

[0008] The aforementioned multi-position observation window for vacuum equipment has an elastic cylindrical pin on the upper surface of the lower support wing of the window seat, and a positioning hole corresponding to the elastic cylindrical pin on the lower surface of the window cover.

[0009] The aforementioned multi-position observation window for vacuum equipment includes a transmission structure comprising a driven gear fixed to the center of the upper surface of a turntable, a handle seat on the window cover, a rotating shaft in the handle seat, a dynamic sealing assembly between the rotating shaft and the inner wall of the handle seat, a handle at the upper end of the rotating shaft, and a driving gear at the lower end of the rotating shaft that meshes with the driven gear.

[0010] The aforementioned multi-position observation window for vacuum equipment includes a dynamic sealing assembly comprising an upper JO-type sealing ring and a lower JO-type sealing ring relatively built into the handle seat, a copper sleeve supported between the upper and lower JO-type sealing rings, a copper pad pressed on the upper JO-type sealing ring, and a pressure cap pressed on the upper surface of the copper pad and threadedly connected to the handle seat.

[0011] The beneficial effects of this utility model are: 1. By setting multiple switchable intermediate viewing windows via a turntable, when one intermediate viewing window becomes contaminated, the operator can quickly switch to an uncontaminated intermediate viewing window simply by rotating the transmission structure, without immediately stopping the machine for cleaning. This design eliminates the "observation interruption - machine shutdown - production resumption" process caused by contaminated viewing windows, effectively reducing unplanned downtime and thus greatly ensuring the continuity of the vacuum process.

[0012] 2. Once all intermediate viewing windows are contaminated, simply loosen the clamping handwheel to disengage the hinge bolts from the window cover, allowing for easy removal of the cover. This facilitates the removal of the contaminated intermediate viewing window from the turntable for replacement or cleaning, without disassembling the entire observation window sealing system. This not only simplifies the disassembly and assembly process and reduces the labor intensity of operators, but also reduces wear and tear on seals caused by frequent disassembly, extending the service life of vulnerable parts and indirectly lowering maintenance costs. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 yes Figure 1A top view (hiding the window cover and its components).

[0014] In the diagram: 1. Vacuum equipment connector, 2. Window seat, 3. Hinged bolt, 4. Flexible cylindrical pin, 5. O-ring seal, 6. Handwheel, 7. Window cover, 8. Glass window, 9. Handle, 10. Shaft, 11. Copper sleeve, 12. Turntable, 13. Small steel ball, 14. Driven gear, 15. Rotating bracket, 16. Central viewing window, 17. Drive gear, 18. Upper JO-type seal, 19. Lower JO-type seal, 20. Pressure cap, 21. Copper gasket, 22. Handle seat, 23. Lower support wing. Detailed Implementation

[0015] The present invention will be described in detail with reference to the accompanying drawings.

[0016] like Figure 1 , Figure 2 As shown, the multi-position observation window for the vacuum equipment includes a window base 2 connected to the vacuum equipment connector 1, a window cover 7 connected to the window base 2, and a glass window 8 disposed on the window cover 7 and facing the upper end of the vacuum equipment connector 1.

[0017] The window cover 7 and the window seat 2 are evenly provided with three connecting structures on their edges. Each connecting structure includes a lower support wing 23 on the edge of the window seat 2, an upper support wing on the edge of the window cover 7, a lower U-shaped opening on the lower support wing 23, an upper U-shaped opening on the upper support wing, a hinged bolt 3 whose fixed end is hinged to the side wall of the lower U-shaped opening and whose middle part is inserted into the upper U-shaped opening, and a clamping handwheel 6 connected to the free end of the hinged bolt 3. In this embodiment, the upper surface of the lower support wing 23 of the window seat 2 is provided with an elastic cylindrical pin 4, and the lower surface of the window cover 7 is provided with a positioning hole corresponding to the elastic cylindrical pin 4.

[0018] The window seat 2 and window cover 7 interlock to form an intermediate cavity, and O-rings 5 ​​are arranged around the perimeter of the intermediate cavity corresponding to the positions of the window seat 2 and window cover 7. A turntable 12 is provided on the bottom surface of the intermediate cavity, and three intermediate viewing windows 16 are evenly arranged around its center line on the turntable 12. The upper end of the vacuum equipment connecting pipe 1 is located below the rotation path of the intermediate viewing windows 16. In this embodiment, a limiting stop is provided at the center of the lower surface of the turntable 12, and a groove corresponding to the limiting stop is provided on the upper surface of the window seat 2, with a rotating bracket 15 concentric with the groove. Multiple small steel balls 13 are embedded in the rotating bracket 15, contacting the lower surface of the turntable 12.

[0019] The window cover 7 is provided with a transmission structure connected to the turntable 12. In this embodiment, the transmission structure includes a driven gear 14 fixed to the center of the upper surface of the turntable 12, a handle seat 22 on the window cover 7, a rotating shaft 10 in the handle seat 22, a dynamic sealing assembly between the rotating shaft 10 and the inner wall of the handle seat 22, a handle 9 at the upper end of the rotating shaft 10, and a driving gear 17 at the lower end of the rotating shaft 10 and meshing with the driven gear 14. The dynamic sealing assembly includes an upper JO-type sealing ring 18 and a lower JO-type sealing ring 19 relatively built into the handle seat 22, a copper sleeve 11 supported between the upper and lower JO-type sealing rings, a copper pad 21 pressed on the upper JO-type sealing ring 18, and a pressure cap 20 pressed on the upper surface of the copper pad 21 and threadedly connected to the handle seat 22.

[0020] Except for the driven gear 14, rotating shaft 10, driving gear 17, and small steel ball 13, all metal structural components are made of aluminum alloy, ensuring a lightweight overall structure that is easy to install and operate. The outer sides of the clamping handwheel 6, pressure cover 20, and handle 9 are all knurled, with clear and evenly distributed patterns that increase friction and facilitate operator operation. Through structural optimization (such as using aluminum alloy to reduce weight, knurled handles to enhance the feel of operation, and dynamic sealing components to ensure vacuum sealing), it combines safety and convenience when adapting to different vacuum equipment: on the one hand, a good sealing design can maintain the stability of the vacuum environment inside the equipment and avoid vacuum leakage caused by structural defects; on the other hand, lightweight and user-friendly operation design (such as quick handle switching) lowers the operating threshold, making it easier for operators to use efficiently in complex working conditions, further improving the overall operating efficiency of the equipment.

[0021] Working principle: 1. When in use, use the three clamping handwheels 6 to lock the window seat 2 and the window cover 7.

[0022] 2. When one of the intermediate viewing windows 16 is contaminated, turning the handle 9 causes the rotating shaft 10 to drive the driven gear 14 via the driving gear 17 at its lower end, thereby rotating the turntable 12. This causes another intermediate viewing window 16 to move above the upper end of the vacuum equipment connector 1, replacing the observation position of the contaminated window and restoring a clear field of view. The small steel ball 13 below the turntable 12 acts as a drag reducer, allowing the turntable 12 to rotate smoothly.

[0023] 3. After the equipment stops, simply loosen the clamping handwheel 6 to remove the window cover 7 and replace all contaminated intermediate viewing windows 16.

[0024] The embodiments of this utility model have been described in detail above, but the content described is only a preferred embodiment of this utility model and should not be considered as limiting the scope of implementation of this utility model. All equivalent changes and improvements made within the scope of this utility model should still fall within the scope of this utility model.

Claims

1. A multi-position observation window for a vacuum device, comprising a window base connected to a vacuum device connector, a window cover connected to the window base, and a glass window disposed on the window cover and facing the upper end of the vacuum device connector, characterized in that: The window cover and window seat have multiple connecting structures evenly distributed along their edges. Each connecting structure includes a lower support wing on the edge of the window seat, an upper support wing on the edge of the window cover, a lower U-shaped opening on the lower support wing, an upper U-shaped opening on the upper support wing, a hinged bolt with its fixed end hinged to the side wall of the lower U-shaped opening and its center inserted into the upper U-shaped opening, and a clamping handwheel connected to the free end of the hinged bolt. The window seat and window cover interlock to form an intermediate cavity. A turntable is provided on the bottom surface of the intermediate cavity. Multiple intermediate viewing windows are evenly distributed around the turntable's center line. The upper end of the vacuum equipment connector is located below the rotation path of the intermediate viewing windows. The window cover has a transmission structure connected to the turntable.

2. The multi-position observation window for vacuum equipment according to claim 1, characterized in that: The lower surface of the turntable is provided with a limiting stop at its center, and the upper surface of the window seat is provided with a groove corresponding to the limiting stop, and a rotating bracket concentric with the groove is provided. Multiple small steel balls that are in contact with the lower surface of the turntable are embedded in the rotating bracket.

3. The multi-position observation window for vacuum equipment according to claim 1, characterized in that: O-rings are arranged around the perimeter of the window seat and window cover corresponding to the central cavity.

4. The multi-position observation window for vacuum equipment according to claim 1, characterized in that: The upper surface of the lower support wing of the window seat is provided with an elastic cylindrical pin, and the lower surface of the window cover is provided with a positioning hole corresponding to the elastic cylindrical pin.

5. The multi-position observation window for vacuum equipment according to claim 1, characterized in that: The transmission structure includes a driven gear fixed to the center of the upper surface of the turntable, a handle seat on the window cover, a rotating shaft in the handle seat, a dynamic sealing assembly between the rotating shaft and the inner wall of the handle seat, a handle at the upper end of the rotating shaft, and a driving gear at the lower end of the rotating shaft that meshes with the driven gear.

6. The multi-position observation window for vacuum equipment according to claim 5, characterized in that: The dynamic sealing assembly includes an upper JO-type sealing ring and a lower JO-type sealing ring that are built into the handle seat, a copper sleeve supported between the upper and lower JO-type sealing rings, a copper pad pressed on the upper JO-type sealing ring, and a pressure cap pressed on the upper surface of the copper pad and threadedly connected to the handle seat.

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