A disassembly and assembly structure for a vacuum tube and a drying chamber
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI PILOTECH INSTR & EQUIP
- Filing Date
- 2025-08-19
- Publication Date
- 2026-06-30
AI Technical Summary
The existing connection structure between the vacuum tube and the drying chamber is complex to install and disassemble, difficult to maintain, and the connection is unstable, which affects the sealing and stability of the equipment and leads to the destruction of the vacuum drying environment.
The device employs a limiting structure and reset assembly, including an annular plate, an arc-shaped block, a limiting rod, and a sealing component. Through the tight fit between the limiting rod and the limiting hole, and the elastic action of the spring, it enables the rapid installation and disassembly of the vacuum tube and the drying chamber, while ensuring the stability and sealing of the connection.
It simplifies the installation and disassembly of vacuum tubes and drying chambers, improves the stability and sealing of connections, prevents equipment from loosening under vibration or external force, and ensures the normal operation of the vacuum drying process.
Smart Images

Figure CN224434946U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of vacuum tube and drying chamber connection technology, and in particular to a disassembly and assembly structure for a vacuum tube and drying chamber. Background Technology
[0002] In many industrial production fields such as freeze drying and vacuum drying, the connection structure between the vacuum tube and the drying chamber in drying equipment is one of the key components to ensure the normal operation of the equipment. However, the existing vacuum tube and drying chamber connection structures on the market generally suffer from complex installation and disassembly, and are difficult to maintain.
[0003] Traditional connection methods often employ numerous bolts or complex welding processes. Taking bolt tightening as an example, when installing vacuum tubes, operators must individually and accurately screw multiple bolts into their corresponding threaded holes. This process is not only time-consuming and labor-intensive but also demands a high level of skill from the operators. If a bolt is tightened unevenly or its thread strips, the connection may be weak, affecting the equipment's sealing and stability. Disassembly also requires unscrewing each bolt individually, making the process cumbersome and inefficient.
[0004] While welding can achieve a relatively strong connection, if the equipment malfunctions or the vacuum tube needs to be replaced, specialized cutting tools are required to cut the welded area. This not only causes some damage to the equipment, but the re-welding process after cutting is also very complicated, requiring specialized welding equipment and skilled welders, further increasing maintenance and time costs.
[0005] Currently, some vacuum tube and drying chamber connection structures suffer from unstable connections. Due to unreasonable connection design or manufacturing defects, vacuum tubes are susceptible to loosening or displacement during equipment operation due to factors such as vibration and temperature changes. This unstable connection can lead to seal failure between the vacuum tube and the drying chamber, allowing outside air to enter and disrupting the vacuum drying environment. In food drying, the entry of outside air can cause food to become damp and oxidized, leading to a decline in quality or even spoilage. In pharmaceutical drying, it may affect the active ingredients and stability of the drugs, reducing their quality and efficacy. Therefore, we provide a disassembly and assembly structure for the vacuum tube and drying chamber. Utility Model Content
[0006] To address the aforementioned problems, this invention proposes a disassembly and assembly structure for the vacuum tube and the drying chamber, thereby more accurately resolving the issues raised in the background section.
[0007] This utility model is achieved through the following technical solution:
[0008] The utility model proposes a disassembly and assembly structure for a vacuum tube and a drying chamber, including a drying chamber body, a vacuum tube body, and a disassembly and assembly component installed between the two. The disassembly and assembly component includes an annular plate fixedly installed around the vacuum tube body and an arc-shaped block fixedly welded to the surface of the drying chamber body. The annular plate is located between four of the arc-shaped blocks. The surface of the drying chamber body is provided with a docking through hole for docking with the vacuum tube body.
[0009] A limiting structure connects the annular plate and the arc block;
[0010] The limiting structure includes a limiting insertion hole on the arc-shaped block and a rectangular groove on the surface of the annular plate. A movable plate is slidably connected to the inner wall of the rectangular groove. A limiting insertion rod is fixedly connected to the surface of the movable plate. A reset component is connected between the rectangular groove and the movable plate.
[0011] A sealing component connects the drying chamber and the annular plate.
[0012] Furthermore, the reset assembly includes a strip groove formed on the inner wall of the rectangular groove, a fixing rod is fixedly connected between the two end walls of the strip groove, a spring is sleeved around the fixing rod, and a sliding sleeve block is slidably sleeved around the fixing rod.
[0013] Furthermore, the sealing component includes a sealing ring fixedly connected to the surface of the annular plate relative to the surface of the drying chamber and a sealing slot formed on the surface of the drying chamber relative to the surface of the annular plate, wherein the sealing ring is inserted into the inner wall of the sealing slot.
[0014] Furthermore, the sliding sleeve is slidably connected to the inner wall of the strip groove, and the opposite surfaces of the two sliding sleeves are fixedly connected to the two end surfaces of the movable plate.
[0015] Furthermore, one end of the limiting rod passes through the end wall of the rectangular groove and is inserted into the inner wall of the limiting hole, and the inner diameter of the limiting hole is compatible with the outer diameter of the limiting rod.
[0016] Furthermore, one end of the spring is fixedly connected to the end wall of the strip groove, and the other end of the spring is fixedly connected to one end surface of the sliding sleeve block.
[0017] The beneficial effects of this utility model are:
[0018] This invention greatly facilitates the installation and disassembly of the vacuum tube and the drying chamber through the design of the limiting structure and reset component. During installation, simply insert the vacuum tube into the docking hole of the drying chamber, positioning the annular plate between the four arc-shaped blocks. Then, push the moving plate to overcome the spring's elastic force, aligning the limiting rod with the limiting insertion hole. Release the moving plate, and the spring returns to its original state, pushing the sliding sleeve block to slide, thereby inserting the limiting rod into the limiting insertion hole for quick connection. For disassembly, simply push the moving plate again to pull the limiting rod out of the limiting insertion hole.
[0019] This invention utilizes the tight fit between the limiting rod and the limiting hole in the limiting structure, as well as the elastic action of the spring on the sliding sleeve and the moving plate in the reset assembly, to ensure a stable and reliable connection between the annular plate and the arc-shaped block. This guarantees the connection stability between the vacuum tube and the drying chamber. During equipment operation, even under vibration or other external forces, the vacuum tube will not loosen or fall off, ensuring the normal progress of the vacuum drying process. Attached Figure Description
[0020] Figure 1 This is a perspective view of one embodiment of the present utility model;
[0021] Figure 2 This is a schematic diagram of the structure of the drying chamber in one embodiment of the present invention;
[0022] Figure 3 This is a schematic diagram of the connection structure between the vacuum tube body and the annular plate in one embodiment of the present invention;
[0023] Figure 4 This is one embodiment of the present utility model. Figure 1 Enlarged view of the structure at point A in the middle.
[0024] In the diagram: 1. Drying chamber; 2. Vacuum tube; 3. Docking through hole; 4. Annular plate; 5. Arc-shaped block; 6. Limiting insertion hole; 7. Rectangular groove; 8. Moving plate; 9. Limiting insertion rod; 10. Strip groove; 11. Fixing rod; 12. Spring; 13. Sliding sleeve block; 14. Sealing ring; 15. Sealing slot. Detailed Implementation
[0025] To more clearly and completely illustrate the technical solution of this utility model, the following description, in conjunction with the accompanying drawings, will further explain this utility model.
[0026] Example
[0027] like Figures 1-4As shown in the figure, an embodiment of this utility model proposes a disassembly and assembly structure for a vacuum tube and a drying chamber, which mainly consists of a drying chamber body 1, a vacuum tube body 2, and disassembly and assembly components installed between the two. A connecting through hole 3 is formed on the surface of the drying chamber body 1. The size of the connecting through hole 3 is adapted to the outer diameter of the vacuum tube body 2 to achieve docking between the vacuum tube body 2 and the drying chamber body 1. The disassembly and assembly components include an annular plate 4 fixedly installed around the vacuum tube body 2 and arc-shaped blocks 5 fixedly welded to the surface of the drying chamber body 1. Four arc-shaped blocks 5 are arranged, with the annular plate 4 positioned between the four arc-shaped blocks 5. This arrangement provides a basis for subsequent limiting and fixing. A limiting structure is connected between the annular plate 4 and the arc-shaped blocks 5. Specifically, the limiting structure includes a limiting insertion hole 6 on the arc-shaped block 5, a rectangular groove 7 on the surface of the annular plate 4, a movable plate 8 slidably connected to the inner wall of the rectangular groove 7, the movable plate 8 being able to slide horizontally within the rectangular groove 7, and a limiting insertion rod 9 fixedly connected to the surface of the movable plate 8. The sliding of the movable plate 8 can drive the limiting insertion rod 9 to move. A reset assembly is connected between the rectangular groove 7 and the movable plate 8 to reset the movable plate 8 and the limiting rod 9; at the same time, a sealing component is connected between the drying chamber 1 and the annular plate 4 to ensure the sealing of the vacuum tube 2 after it is connected to the drying chamber 1.
[0028] The above structure enables the initial docking of the vacuum tube 2 and the drying chamber 1, and provides a foundation for subsequent stable connection and sealing through the limiting structure and sealing components. This ensures that the vacuum tube 2 can be accurately and stably installed on the drying chamber 1, while guaranteeing the sealing of the connection and meeting the working requirements of vacuum drying.
[0029] Furthermore, the reset assembly specifically includes a strip-shaped groove 10 formed on the inner wall of the rectangular groove 7, which provides installation space for the fixing rod 11, the spring 12, and the sliding sleeve 13. The fixing rod 11 is fixedly connected between the two end walls of the strip-shaped groove 10, and the fixing rod 11 guides the sliding of the sliding sleeve 13. A spring 12 is sleeved around the fixing rod 11; the spring 12 is elastic, capable of deforming under force and returning to its original shape after the external force disappears. The sliding sleeve 13 is slidably sleeved around the fixing rod 11, and the sliding sleeve 13 can slide horizontally on the fixing rod 11.
[0030] When the limiting rod 9 needs to be inserted into the limiting hole 6, an external force pushes the moving plate 8, causing the sliding sleeve 13 to slide on the fixed rod 11, compressing the spring 12. Once the limiting rod 9 is aligned with the limiting hole 6, the external force is released, the spring 12 returns to its original state, and pushes the sliding sleeve 13 to slide in the opposite direction, thereby causing the moving plate 8 and the limiting rod 9 to be inserted into the limiting hole 6, achieving the limiting function. When disassembly is required, an external force is applied again to push the moving plate 8, the spring 12 is compressed, and the limiting rod 9 is pulled out from the limiting hole 6. This reset assembly realizes the automatic reset of the moving plate 8 and the limiting rod 9, facilitating the installation and disassembly of the vacuum tube 2 and the drying chamber 1.
[0031] Furthermore, the sealing component specifically includes a sealing ring 14 fixedly connected to the surface of the annular plate 4 relative to the surface of the drying chamber 1, and a sealing slot 15 formed on the surface of the drying chamber 1 relative to the annular plate 4. When installing the vacuum tube 2, the sealing ring 14 is aligned with the sealing slot 15, and the sealing ring 14 is inserted into the inner wall of the sealing slot 15.
[0032] The tight fit between the sealing ring 14 and the sealing slot 15 creates an effective seal at the connection between the vacuum tube 2 and the drying chamber 1, preventing outside air from entering the drying chamber 1, ensuring the stability of the vacuum drying environment, and improving the effect and quality of vacuum drying.
[0033] Furthermore, the sliding sleeve 13 is slidably connected to the inner wall of the strip groove 10, ensuring that the sliding sleeve 13 can slide stably along the length direction of the strip groove 10. The opposing surfaces of the two sliding sleeves 13 are fixedly connected to the two end surfaces of a movable plate 8. When the movable plate 8 is subjected to external force, it will drive the two sliding sleeves 13 to slide synchronously on the fixed rod 11, ensuring the smoothness of the movement of the movable plate 8.
[0034] By fixing the two sliding sleeves 13 to both ends of the moving plate 8, the moving plate 8 can remain horizontal during movement without tilting or shaking, thereby ensuring that the limiting rod 9 can be accurately inserted into and pulled out of the limiting socket 6, improving the operational accuracy and reliability of the limiting structure, and ensuring the stability of the connection between the vacuum tube 2 and the drying chamber 1.
[0035] Furthermore, the operation of the reset assembly causes one end of the limiting rod 9 to pass through the end wall of the rectangular groove 7 and be inserted into the inner wall of the limiting hole 6. At this time, the inner diameter of the limiting hole 6 and the outer diameter of the limiting rod 9 are matched, so that the limiting rod 9 can be tightly inserted into the limiting hole 6, ensuring the connection stability between the annular plate 4 and the arc-shaped block 5.
[0036] The tight fit between the limiting rod 9 and the limiting hole 6 ensures a reliable connection between the annular plate 4 and the arc block 5, thereby guaranteeing the connection stability between the vacuum tube 2 and the drying chamber 1, preventing the vacuum tube 2 from loosening or falling off during equipment operation, and ensuring the normal operation of the vacuum drying process.
[0037] Furthermore, one end of the spring 12 is fixedly connected to the end wall of the strip groove 10, and the other end is fixedly connected to one end surface of the sliding sleeve block 13. When the sliding sleeve block 13 slides on the fixed rod 11, the spring 12 is stretched or compressed, generating an elastic force. When the external force disappears, the elastic force of the spring 12 will push the sliding sleeve block 13 to slide in the opposite direction, thereby resetting the moving plate 8 and the limiting rod 9.
[0038] By fixing the two ends of the spring 12 to the end wall of the strip groove 10 and the surface of the sliding sleeve block 13 respectively, the spring 12 can generate elastic force when the sliding sleeve block 13 slides, providing power for the reset of the moving plate 8 and the limiting rod 9, ensuring the normal operation of the reset assembly, facilitating the installation and disassembly of the vacuum tube 2 and the drying chamber 1, and improving the maintainability of the equipment.
[0039] Finally, it should be noted that the basic concepts have been described above. Obviously, for those skilled in the art, the detailed disclosure above is merely illustrative and does not constitute a limitation of this specification. Although not explicitly stated here, those skilled in the art may make various modifications, improvements, and corrections to this specification. Such modifications, improvements, and corrections are suggested in this specification, and therefore, such modifications, improvements, and corrections still fall within the spirit and scope of the exemplary embodiments of this specification. Furthermore, this specification uses specific terms to describe embodiments of this specification. For example, "an embodiment," "one embodiment," and / or "some embodiments" refer to a feature, structure, or characteristic associated with at least one embodiment of this specification. Therefore, it should be emphasized and noted that "an embodiment," "one embodiment," or "an alternative embodiment" mentioned twice or more in different locations in this specification do not necessarily refer to the same embodiment. In addition, certain features, structures, or characteristics in one or more embodiments of this specification can be appropriately combined. Moreover, unless expressly stated in the claims, the order of processing elements and sequences, the use of numbers and letters, or other names described in this specification are not intended to limit the order of the processes and methods of this specification.
[0040] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A disassembly and assembly structure for a vacuum tube and a drying chamber, comprising a drying chamber body (1), a vacuum tube body (2), and a disassembly and assembly component installed between the two, characterized in that, The assembly and disassembly components include an annular plate (4) fixedly installed around the vacuum tube body (2) and an arc-shaped block (5) fixedly welded to the surface of the drying chamber (1). The annular plate (4) is located between the four arc-shaped blocks (5). The surface of the drying chamber (1) is provided with a docking through hole (3) for docking with the vacuum tube body (2). A limiting structure connects the annular plate (4) and the arc-shaped block (5); The limiting structure includes a limiting insertion hole (6) opened on the arc block (5) and a rectangular groove (7) opened on the surface of the annular plate (4). A movable plate (8) is slidably connected to the inner wall of the rectangular groove (7). A limiting insertion rod (9) is fixedly connected to the surface of the movable plate (8). A reset component is connected between the rectangular groove (7) and the movable plate (8). A sealing component is connected between the drying chamber (1) and the annular plate (4).
2. The disassembly and assembly structure of the vacuum tube and drying chamber according to claim 1, characterized in that, The reset assembly includes a strip groove (10) formed on the inner side wall of a rectangular groove (7). A fixing rod (11) is fixedly connected between the two end walls of the strip groove (10). A spring (12) is sleeved around the fixing rod (11). A sliding sleeve block (13) is slidably sleeved around the fixing rod (11).
3. The disassembly and assembly structure of the vacuum tube and drying chamber according to claim 1, characterized in that, The sealing component includes a sealing ring (14) fixedly connected to the surface of the annular plate (4) relative to the surface of the drying chamber (1) and a sealing slot (15) opened on the surface of the drying chamber (1) relative to the annular plate (4), and the sealing ring (14) is inserted into the inner wall of the sealing slot (15).
4. The disassembly and assembly structure of the vacuum tube and drying chamber according to claim 2, characterized in that, The sliding sleeve (13) is slidably connected to the inner wall of the strip groove (10), and the opposite surfaces of the two sliding sleeves (13) are fixedly connected to the two end surfaces of the movable plate (8).
5. The disassembly and assembly structure of the vacuum tube and drying chamber according to claim 1, characterized in that, One end of the limiting rod (9) passes through the end wall of the rectangular groove (7) and is inserted into the inner wall of the limiting hole (6), and the inner diameter of the limiting hole (6) is compatible with the outer diameter of the limiting rod (9).
6. The disassembly and assembly structure of the vacuum tube and drying chamber according to claim 2, characterized in that, One end of the spring (12) is fixedly connected to the end wall of the strip groove (10), and the other end of the spring (12) is fixedly connected to one end surface of the sliding sleeve (13).