Vacuum drying apparatus with improved sealing

Abstract

The utility model discloses a good sealing pressure method vacuum drying equipment, including vacuum drying machine body, one side of vacuum drying machine body is rotatively connected with machine door, and one side of vacuum drying machine body is provided with the sealing groove, the inside of sealing groove is provided with inflatable air bag, one side fixed coupling of vacuum drying machine body has the gas ball pump, and the inflatable end of gas ball pump is connected with inflatable air bag, and one side fixed coupling of machine door has sealing rubber strip. Through multilayer sealing structure, that is, the cooperation of sealing rubber strip, inflatable air bag, the sealing property of vacuum drying machine body and machine door junction greatly is improved, effectively prevents the outside air from entering, guarantees the vacuum environment in vacuum drying machine body, improves dry effect and efficiency.

Description

Technical Field

[0001] This utility model relates to the field of vacuum drying equipment technology, specifically a pressure-variable vacuum drying equipment with good sealing performance. Background Technology

[0002] Vacuum drying equipment is widely used in various industries such as food, pharmaceuticals, and chemicals. When using freeze-drying methods, sublimation heat needs to be added. Under vacuum conditions, the vaporization temperature of water is low, achieving low-temperature drying. With the continuous improvement of industrial production technology and consumer demands, higher technical requirements are being placed on drying equipment, among which good sealing is crucial. However, some existing dryers have certain problems. Some equipment relies on sealing strips for sealing, which may wear down after prolonged use, affecting the sealing effect and potentially impacting drying efficiency. Furthermore, removing materials requires reaching into the vacuum drying chamber, which is inconvenient. Utility Model Content

[0003] The purpose of this invention is to provide a pressure-variable vacuum drying device with good sealing performance. Through the use of a multi-layer sealing structure, namely the combined use of sealing rubber strips and inflatable airbags, the sealing performance at the connection between the vacuum dryer body and the door is greatly improved, effectively preventing the entry of outside air, ensuring the vacuum environment inside the vacuum dryer body, and improving the drying effect and efficiency.

[0004] To achieve the above objectives, a pressure swing vacuum drying device with good sealing performance is provided, including a vacuum dryer body, a door rotatably connected to one side of the vacuum dryer body, a sealing groove opened on one side of the vacuum dryer body, an inflatable airbag disposed inside the sealing groove, an air pump fixedly connected to one side of the vacuum dryer body, and a sealing rubber strip fixedly connected to one side of the door. The bottom wall of the vacuum dryer body is provided with an installation groove. A drive motor is fixedly connected inside the installation groove. A threaded rod is fixedly connected to the output shaft of the drive motor. A threaded block is threadedly connected to the outer surface of the threaded rod. A connecting frame is fixedly connected to the upper end of the threaded block. A support plate is fixedly connected to the upper end of the connecting frame. Square grooves are symmetrically provided on the lower surface of the support plate. A spring is fixedly connected inside the square groove. A movable wheel is fixedly connected to the lower end of the spring.

[0005] According to the aforementioned pressure-variable vacuum drying equipment with good sealing performance, the air pump's inflation end is connected to an inflatable airbag.

[0006] According to the aforementioned high-sealing variable pressure vacuum drying equipment, one end of the threaded rod is fixedly connected to a bearing, and the bearing is fixed to the side wall of the mounting groove.

[0007] According to the aforementioned high-sealing variable pressure vacuum drying equipment, the lower end of the threaded block is slidably connected to the bottom wall of the mounting groove.

[0008] According to the aforementioned high-sealing variable pressure vacuum drying equipment, the surface of the drive motor is provided with a heat insulation sleeve.

[0009] According to the aforementioned pressure-variable vacuum drying equipment with good sealing performance, both inner walls of the vacuum dryer body are provided with sliding grooves, a sliding rod is fixedly connected inside the sliding groove, a slider is slidably connected to the outer surface of the sliding rod, and one side of the slider is fixedly connected to the side wall of the support plate.

[0010] Compared with the prior art, the beneficial effects of this utility model are: This high-sealing pressure-variable vacuum drying equipment, through the combined use of a multi-layer sealing structure, namely sealing rubber strips and inflatable airbags, greatly improves the sealing performance at the connection between the vacuum dryer body and the door, effectively preventing outside air from entering, ensuring the vacuum environment inside the vacuum dryer body, and improving the drying effect and efficiency.

[0011] This type of pressure-variable vacuum drying equipment with good sealing performance uses a mounting groove, a drive motor, a threaded rod, and a threaded block to move the support plate, making it easy to move the support plate out of the vacuum dryer body and to facilitate the loading and unloading of materials.

[0012] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments; Figure 1 This is a perspective view of a pressure-switching vacuum drying device with good sealing performance according to this utility model; Figure 2 This is a partial side cross-sectional view of a pressure-variable vacuum drying device with good sealing performance according to this utility model; Figure 3 This is a partial cross-sectional view of the vacuum dryer body of a pressure-variable vacuum drying device with good sealing performance according to this utility model; Figure 4 This is a schematic diagram of the support plate and connecting frame of a pressure-reducing vacuum drying device with good sealing performance according to this utility model; Figure 5 For the present utility model Figure 4 Enlarged view of point A in the middle; Figure 6 This is a top cross-sectional view of a pressure-variable vacuum drying device with good sealing performance according to this utility model.

[0014] In the diagram: 1. Vacuum dryer body; 2. Machine door; 3. Sealing groove; 4. Inflatable air bladder; 5. Air pump; 6. Sealing rubber strip; 7. Mounting groove; 8. Drive motor; 9. Threaded rod; 10. Threaded block; 11. Bearing; 12. Connecting frame; 13. Support plate; 14. Square groove; 15. Spring; 16. Moving wheel; 17. Slide groove; 18. Slide rod; 19. Sliding block. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0016] Please see Figure 1-6 This utility model provides a technical solution: a pressure-variable vacuum drying device with good sealing performance, including a vacuum dryer body 1, a door 2 rotatably connected to one side of the vacuum dryer body 1, a sealing groove 3 opened on one side of the vacuum dryer body 1, an inflatable airbag 4 disposed inside the sealing groove 3, an air pump 5 fixedly connected to one side of the vacuum dryer body 1, the inflation end of the air pump 5 connected to the inflatable airbag 4, and a sealing rubber strip 6 fixedly connected to one side of the door 2. Through the multi-layer sealing structure, namely the combined use of the sealing rubber strip 6 and the inflatable airbag 4, the sealing performance at the connection between the vacuum dryer body 1 and the door 2 is greatly improved, effectively preventing the entry of outside air, ensuring the vacuum environment inside the vacuum dryer body 1, and improving the drying effect and efficiency. The bottom wall of the vacuum dryer body 1 is provided with an installation groove 7. A drive motor 8 is fixedly connected inside the installation groove 7. A heat insulation sleeve is provided on the surface of the drive motor 8. A threaded rod 9 is fixedly connected to the output shaft of the drive motor 8. A threaded block 10 is threadedly connected to the outer surface of the threaded rod 9. A connecting frame 12 is fixedly connected to the upper end of the threaded block 10. A support plate 13 is fixedly connected to the upper end of the connecting frame 12. Square grooves 14 are symmetrically provided on the lower surface of the support plate 13. A spring 15 is fixedly connected inside the square groove 14. A moving wheel 16 is fixedly connected to the lower end of the spring 15. By setting up the installation groove 7, drive motor 8, threaded rod 9, and threaded block 10, the support plate 13 is driven to move, which facilitates the removal of the support plate 13 from the vacuum dryer body 1 and facilitates the loading and unloading of materials.

[0017] One end of the threaded rod 9 is fixedly connected to a bearing 11 to facilitate the support and rotation of the threaded rod 9. The bearing 11 is fixed to the side wall of the mounting groove 7.

[0018] The lower end of the threaded block 10 is slidably connected to the bottom wall of the mounting groove 7, which restricts the threaded block 10 and prevents it from rotating.

[0019] The vacuum dryer body 1 has two inner walls with sliding grooves 17. A sliding rod 18 is fixedly connected inside the sliding groove 17. A slider 19 is slidably connected to the outer surface of the sliding rod 18. One side of the slider 19 is fixedly connected to the side wall of the support plate 13 to facilitate the movement of the support plate 13 and prevent it from shifting.

[0020] Working principle: When in use, connect the power supply. When it is necessary to pick up or put down materials, start the drive motor 8. The drive motor 8 drives the threaded rod 9 to rotate. The threaded rod 9 drives the threaded block 10 to move. The threaded block 10 drives the connecting frame 12 to move. The connecting frame 12 drives the support plate 13 to move. When one end of the support plate 13 moves to the outside, the spring 15 drives the moving wheel 16 to move down. The moving wheel 16 provides auxiliary support for the support plate 13. Place the material on the support plate 13, and then retract the support plate 13 into the vacuum dryer body 1. Close the machine door 2. The sealing rubber strip 6 of the machine door 2 enters the sealing groove 3. Start the air pump 5 to inflate the inflatable air bag 4, causing the inflatable air bag 4 to expand and further compress the sealing rubber strip 6, enhancing the sealing effect and filling any possible tiny gaps to form a second layer of seal.

[0021] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A pressure-switching vacuum drying device with good sealing performance, comprising a vacuum dryer body (1), characterized in that, A machine door (2) is rotatably connected to one side of the vacuum dryer body (1). A sealing groove (3) is opened on one side of the vacuum dryer body (1). An inflatable air bag (4) is installed inside the sealing groove (3). An air pump (5) is fixedly connected to one side of the vacuum dryer body (1). A sealing rubber strip (6) is fixedly connected to one side of the machine door (2). The bottom wall of the vacuum dryer body (1) is provided with an installation groove (7). A drive motor (8) is fixedly connected inside the installation groove (7). A threaded rod (9) is fixedly connected to the output shaft of the drive motor (8). A threaded block (10) is threadedly connected to the outer surface of the threaded rod (9). A connecting frame (12) is fixedly connected to the upper end of the threaded block (10). A support plate (13) is fixedly connected to the upper end of the connecting frame (12). A square groove (14) is symmetrically opened on the lower surface of the support plate (13). A spring (15) is fixedly connected inside the square groove (14). A moving wheel (16) is fixedly connected to the lower end of the spring (15).

2. The pressure-sealable vacuum drying equipment as described in claim 1, characterized in that: The inflation end of the air pump (5) is connected to the inflatable airbag (4).

3. The pressure-sealable vacuum drying equipment as described in claim 1, characterized in that: One end of the threaded rod (9) is fixedly connected to a bearing (11), which is fixed to the side wall of the mounting groove (7).

4. The pressure-sealable vacuum drying equipment as described in claim 1, characterized in that: The lower end of the threaded block (10) is slidably connected to the bottom wall of the mounting groove (7).

5. The pressure-sealable vacuum drying equipment as described in claim 1, characterized in that: The surface of the drive motor (8) is provided with a heat insulation sleeve.

6. The pressure-sealable vacuum drying equipment as described in claim 1, characterized in that: The vacuum dryer body (1) has two inner walls with sliding grooves (17), and a sliding rod (18) is fixedly connected inside the sliding groove (17). A slider (19) is slidably connected to the outer surface of the sliding rod (18). One side of the slider (19) is fixedly connected to the side wall of the support plate (13).

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