A new vacuum drying bin
By introducing cleaning and dust extraction mechanisms into the vacuum drying chamber, the heating plates are automatically cleaned, solving the problems of uneven heat transfer efficiency and low cleaning efficiency, and reducing the labor intensity of personnel.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU JINHAO FOOD TECHNOLOGY CO LTD
- Filing Date
- 2025-05-20
- Publication Date
- 2026-07-14
AI Technical Summary
The existing vacuum drying chamber suffers from problems such as uneven heat transfer efficiency due to scaling on the heating plates, low cleaning efficiency, and increased labor intensity.
A novel vacuum drying chamber is designed, which includes a cleaning mechanism and a vacuuming mechanism. A horizontal drive mechanism drives a connecting rod and a cleaning brush to move on the surface of a heating plate. Combined with a vacuum cleaner, automated cleaning is achieved. The cleaning brush removes residual materials and collects them into the vacuum cleaner through the suction port and suction hose.
It achieves automated cleaning of the heating plate, improves cleaning efficiency, reduces labor intensity, and avoids the inefficiency of traditional manual cleaning.
Smart Images

Figure CN224486896U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of vacuum drying chambers, specifically a novel vacuum drying chamber. Background Technology
[0002] A freeze-dried food vacuum drying chamber is a device specifically designed for freeze-drying (freeze-drying) technology. It removes moisture completely while preserving the nutritional components, color, and shape of food through low-temperature freezing and vacuum dehydration, thus achieving long-term preservation.
[0003] The heating plates inside the vacuum drying chamber transfer heat to the surface of the material, providing the energy needed for evaporation. This allows the material to heat up quickly to the set temperature, promoting the migration of internal moisture to the surface. However, during use, material residue can cause scale buildup on the heating plate surface, affecting heat transfer efficiency, resulting in uneven drying temperatures. Furthermore, residue can damage the equipment and corrode the heating elements or cause localized overheating, shortening the lifespan of the heating plates. Therefore, regular cleaning of the heating plates is necessary. Traditional manual cleaning of the heating plates inside the vacuum drying chamber is not only inefficient but also increases the workload for personnel. Therefore, a new technical solution is needed to address this issue. Utility Model Content
[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology, adapt to the needs of reality, and provide a new type of vacuum drying chamber to solve the technical problem that the current method of manually cleaning the heating plates inside the vacuum drying chamber is not only inefficient but also increases the labor intensity of personnel.
[0005] To achieve the objectives of this utility model, the technical solution adopted is as follows: A novel vacuum drying chamber is designed, comprising:
[0006] The cleaning mechanism includes a connecting rod disposed in the middle between two heating plates in the inner cavity of the drying chamber. The connecting rod has a hollow structure. A hollow cleaning rod is fixedly connected to one end of the connecting rod near the heating plate. The inner cavities of the cleaning rod and the connecting rod are interconnected. A cleaning brush is fixedly connected to the outer side of the cleaning rod, and the cleaning brush moves against the surface of the heating plate. A horizontal drive mechanism is provided between the bottom of the connecting rod and the bottom end of the inner cavity of the drying chamber for driving the connecting rod to move within the drying chamber.
[0007] The vacuuming mechanism includes a vacuum port located on the outside of the cleaning rod, which is connected to the inner cavity of the cleaning rod. One end of the connecting rod is connected to a vacuum hose, and the end of the vacuum hose away from the connecting rod passes through the drying chamber and is connected to a vacuum cleaner. The vacuum hose is connected to the vacuuming end of the vacuum cleaner.
[0008] Preferably, the horizontal drive mechanism includes a slide groove formed at the bottom of the inner cavity of the drying chamber and a drive motor fixedly installed at the rear end of the drying chamber. A movable block is slidably connected in the slide groove, and the surface of the movable block is fixedly connected to the bottom of the connecting rod. A lead screw is rotatably connected between the two sides of the inner cavity of the slide groove through a bearing. The movable block is threaded on the outside of the lead screw. The drive end of the drive motor rotates through the drying chamber and is connected to the lead screw through a coupling.
[0009] Preferably, the suction ports and cleaning brushes are distributed alternately.
[0010] Preferably, a slide rail is fixedly connected to the top of the drying chamber. The slide rail is inverted T-shaped, and multiple first sliders are slidably connected on the slide rail. Each of the multiple first sliders has a fixed ring fixedly connected to its bottom, and the vacuum suction hose passes through the multiple fixed rings in sequence.
[0011] Preferably, a second slider is slidably connected to the slide rail, and the bottom of the second slider is fixedly connected to the top of the connecting rod.
[0012] Preferably, the length of the suction hose inside the drying chamber is greater than the depth of the drying chamber.
[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0014] 1. This utility model combines a horizontal drive mechanism, a connecting rod, a cleaning rod, a cleaning brush, a suction port, a suction hose, and a vacuum cleaner. The drive motor rotates the lead screw, causing the connecting rod to reciprocate within the drying chamber. During this movement, the cleaning brush removes material residue adhering to the heating plate surface. Simultaneously, the vacuum cleaner generates a strong negative pressure airflow, causing the removed residue to quickly enter the cleaning rod cavity through the suction port. It then passes through the internal channel of the connecting rod and the suction hose, ultimately converging in the dust collection area inside the vacuum cleaner. This improves the cleaning effect of the heating plate, eliminating the need for manual cleaning of material residue adhering to the heating plate surface. This not only avoids the low efficiency of traditional manual cleaning but also reduces the labor intensity of personnel.
[0015] 2. This utility model combines a slide rail, a first slider, and a fixing ring. When the connecting rod moves, the slide rail and multiple first sliders work together to manage the extension and retraction of the vacuum hose. Each first slider has a fixing ring integrated at its bottom. When the horizontal drive mechanism is in operation, the first slider moves synchronously along the inverted T-shaped slide rail, ensuring that the vacuum hose always remains extended and avoids tangling, thus providing a stable movement trajectory and support protection for the vacuum hose. Attached Figure Description
[0016] Figure 1This is a schematic diagram of the overall front structure of this utility model;
[0017] Figure 2 This is a schematic diagram of the overall side structure of this utility model;
[0018] Figure 3 This is a schematic diagram of the connection structure between the slide rail and the first and second sliders of this utility model;
[0019] Figure 4 This is a schematic diagram of the connection structure between the cleaning rod, cleaning brush, and suction port of this utility model.
[0020] In the diagram: 1. Drying chamber; 11. Heating plate; 12. Slide rail; 2. Connecting rod; 21. Cleaning rod; 22. Cleaning brush; 3. Slide groove; 31. Drive motor; 32. Lead screw; 33. Moving block; 4. Vacuum cleaner; 41. Vacuum hose; 42. Vacuum port; 5. Second slider; 6. First slider; 61. Fixing ring. Detailed Implementation
[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments:
[0022] Example 1: A novel vacuum drying chamber, see [link to example]. Figures 1 to 4 The system includes a cleaning mechanism, comprising a connecting rod 2 disposed in the middle between two heating plates 11 within the inner cavity of the drying chamber 1. The connecting rod 2 is hollow. A hollow cleaning rod 21 is fixedly connected to one end of the connecting rod 2 near the heating plate 11. The inner cavities of the cleaning rod 21 and the connecting rod 2 are interconnected. A cleaning brush 22 is fixedly connected to the outer side of the cleaning rod 21, and the cleaning brush 22 moves against the surface of the heating plate 11. A horizontal driving mechanism is provided between the bottom of the connecting rod 2 and the bottom end of the inner cavity of the drying chamber 1 to drive the connecting rod 2 to move within the drying chamber 1. The horizontal driving mechanism includes a sliding groove 3 formed at the bottom end of the inner cavity of the drying chamber 1 and a drive motor 31 fixedly installed at the rear end of the drying chamber 1. A sliding groove 3 is slidably connected to the connecting rod 2. A movable block 33 is fixedly connected to the bottom of the connecting rod 2. A lead screw 32 is rotatably connected between the two sides of the inner cavity of the slide groove 3 via bearings. The movable block 33 is threaded onto the outside of the lead screw 32. The drive end of the drive motor 31 rotates through the drying chamber 1 and is connected to the lead screw 32 via a coupling. A dust collection mechanism includes a dust collection port 42 opened on the outside of the cleaning rod 21. The dust collection port 42 communicates with the inner cavity of the cleaning rod 21. One end of the connecting rod 2 is connected to a dust collection hose 41. The end of the dust collection hose 41 away from the connecting rod 2 passes through the drying chamber 1 and is connected to a vacuum cleaner 4. The dust collection hose 41 communicates with the dust collection end of the vacuum cleaner 4. The length of the dust collection hose 41 in the inner cavity of the drying chamber 1 is greater than the depth of the inner cavity of the drying chamber 1.
[0023] During operation, the drive motor 31 drives the lead screw 32 to rotate, thereby causing the connecting rod 2 to reciprocate within the drying chamber 1 (the reciprocating motion of the connecting rod 2 is achieved by the forward and reverse rotation of the drive motor 31, and how the motor achieves forward and reverse rotation is known technology, which will not be elaborated here). This, in turn, drives the cleaning rod 21 and the cleaning brush 22 to perform automated cleaning operations along the surface of the heating plate 11. Because the cleaning brush 22 moves against the surface of the heating plate 11, it efficiently removes material residue adhering to the surface of the heating plate 11 during the movement. During the movement of the cleaning brush 22, a strong negative pressure airflow is generated by activating the vacuum cleaner 4 (how the vacuum cleaner 4 generates negative pressure airflow is existing technology, which will not be elaborated here). The removed residue is quickly drawn into the cleaning rod 21 cavity through the suction port 42, and finally collected in the dust collection area inside the vacuum cleaner 4 via the internal channel of the connecting rod 2 and the suction hose 41. This improves the cleaning effect of the heating plate 11, eliminating the need for manual cleaning of the material residue adsorbed on the surface of the heating plate 11. This not only avoids the low efficiency problem of traditional manual cleaning, but also reduces the labor intensity of personnel. After the heating plate 11 is cleaned, the cleaning brush 22 is moved and stored in the protruding inner cavity at the rear end of the drying chamber 1 by starting the drive motor 31. This prevents the cleaning brush 22 from contacting the heating plate 11 and causing damage to the cleaning brush 22 during use.
[0024] Further, see Figure 4 The suction port 42 and the cleaning brush 22 are staggered, which on the one hand prevents the cleaning brush 22 from clogging the suction port 42, and on the other hand increases the suction range, thereby improving the suction effect of the suction port 42.
[0025] It is worth noting that, see Figure 3 The top of the drying chamber 1 is fixedly connected to a slide rail 12, which is inverted T-shaped. Multiple first sliders 6 are slidably connected to the slide rail 12, and each of the first sliders 6 has a fixed ring 61 fixedly connected to its bottom. The vacuum hose 41 passes through the multiple fixed rings 61 in sequence and is fixedly connected to the fixed rings 61. The vacuum hose 41 between two adjacent fixed rings 61 is U-shaped. When the connecting rod 2 moves, the vacuum hose 41 is managed by dynamically cooperating with the slide rail 12 and the multiple first sliders 6. Each first slider 6 has a fixed ring 61 integrated at its bottom. When the horizontal drive mechanism is operating, the first slider 6 moves synchronously along the inverted T-shaped slide rail 12 to ensure that the vacuum hose 41 always remains in an extended state and avoids tangling, thereby providing a stable movement trajectory and support protection for the vacuum hose 41.
[0026] It is worth noting that, see Figure 3A second slider 5 is slidably connected to the slide rail 12. The bottom of the second slider 5 is fixedly connected to the top of the connecting rod 2. By setting the second slider 5, the connecting rod 2 is limited between the second slider 5 and the moving block 33, thereby improving the stability of the connecting rod 2 when it moves.
[0027] In addition, all components designed in this utility model are general standard parts or components known to those skilled in the art. Their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods. Those skilled in the art can fully implement them, so there is no need to elaborate. The content protected by this utility model does not involve improvements to the internal structure and method.
[0028] The embodiments disclosed herein are preferred embodiments, but are not limited thereto. Those skilled in the art can readily grasp the spirit of this utility model based on the above embodiments and make different extensions and variations. However, as long as they do not depart from the spirit of this utility model, they are all within the protection scope of this utility model.
Claims
1. A novel vacuum drying bin characterized in that, Include: The cleaning mechanism includes a connecting rod (2) arranged in the middle between the two heating plates (11) in the inner cavity of the drying bin body (1), the connecting rod (2) is a hollow structure, one end of the connecting rod (2) is fixedly connected with a hollow cleaning rod (21), the cleaning rod (21) and the two inner cavities of the connecting rod (2) are communicated with each other, the outer side of the cleaning rod (21) is fixedly connected with a cleaning brush (22), and the cleaning brush (22) is in movable abutment with the surface of the heating plate (11), a horizontal driving mechanism is arranged between the bottom of the connecting rod (2) and the inner cavity bottom end of the drying bin body (1) for driving the connecting rod (2) to move in the drying bin body (1); The dust collection mechanism includes a dust collection port (42) opened on the outer side of the cleaning rod (21), the dust collection port (42) is communicated with the inner cavity of the cleaning rod (21), one end of the connecting rod (2) is communicated with a dust collection hose (41), one end of the dust collection hose (41) away from the connecting rod (2) penetrates the drying bin body (1) and is connected with a dust collector (4), and the dust collection hose (41) is communicated with the dust collection end of the dust collector (4).
2. A novel vacuum drying bin as claimed in claim 1, wherein, The horizontal driving mechanism includes a sliding groove (3) opened in the inner cavity bottom end of the drying bin body (1) and a driving motor (31) fixedly installed at the rear end of the drying bin body (1), the sliding groove (3) is slidably connected with a moving block (33), the surface of the moving block (33) is fixedly connected with the bottom of the connecting rod (2), the inner cavity of the sliding groove (3) is rotatably connected with a lead screw (32) through bearings between the two sides, the moving block (33) is threadedly sleeved on the outer side of the lead screw (32), and the driving end of the driving motor (31) is rotatably connected with the lead screw (32) through a shaft coupling.
3. A novel vacuum drying bin as claimed in claim 1, wherein, The dust collection port (42) and the cleaning brush (22) are staggered.
4. A novel vacuum drying bin as claimed in claim 1, wherein, The top of the drying bin body (1) is fixedly connected with a slide rail (12), the slide rail (12) is inverted T-shaped, a plurality of first sliding blocks (6) are slidably connected on the slide rail (12), the bottoms of the plurality of first sliding blocks (6) are fixedly connected with fixing rings (61), and the dust collection hose (41) penetrates the plurality of fixing rings (61) in sequence.
5. A novel vacuum drying bin as claimed in claim 4, characterized in that, The second sliding block (5) is slidably connected on the slide rail (12), and the bottom of the second sliding block (5) is fixedly connected with the top of the connecting rod (2).
6. A novel vacuum drying bin as claimed in claim 1, wherein, The length of the dust collection hose (41) in the inner cavity of the drying bin body (1) is greater than the depth of the inner cavity of the drying bin body (1).