Vacuum drying oven

Abstract

The utility model relates to the technical field of pharmacy and discloses a vacuum drying oven which comprises a drying oven body, one end of the outer wall of the drying oven body is provided with an oven door for controlling opening and closing, and the top of the drying oven body is provided with a vacuum bar communicated with the inner wall of the drying oven body. The drying assemblies are linearly arranged on the inner wall of the drying box body, each drying assembly internally comprises a frame plate, a drying basin and a heating ring, limiting sliding blocks are arranged at the two ends of the outer wall of the two sides of each frame plate, and the limiting sliding blocks are slidably connected to the drying box body; the locking assemblies are arranged at the two ends of the outer wall of the frame plate. According to the medicine drying device, through the arranged locking assembly, the frame plate and the drying basins can be pulled out, feeding and discharging are convenient, the frame plate and the drying basins can be driven to move in the vertical direction, then the distance between the two drying basins can be adjusted, medicine of different sizes can be conveniently dried, and the universality of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pharmaceutical manufacturing, in particular to a vacuum drying oven. Background Art

[0002] The vacuum drying oven for pharmaceutical use is a device specifically used in the pharmaceutical industry. It uses a vacuum pump to extract the air inside the oven, reduce the air pressure, and simultaneously heat the sample to promote the evaporation of moisture and solvents. This drying method can be achieved at a relatively low temperature, avoiding damage to the sample caused by high temperature, and can effectively prevent oxidation and contamination, improving the drying effect and sample quality.

[0003] After retrieval, the application number "202010068316.X" discloses a vacuum drying oven for pharmaceutical use, including a drying oven. A vacuum device is arranged on the drying oven, and the pipeline of the vacuum device leads to the inside of the drying oven. A rotating door is hinged on the front end face of the drying oven. An inner rack is arranged inside the drying oven. The inner rack is fixedly arranged in the drying oven from top to bottom in sequence, and heating U-shaped tubes are arranged on the inner rack in an array. A heat conducting plate for placing a tray is arranged on the heating U-shaped tube, and ointment for drying is placed in the tray. The ointment in the tray is heated by arranging uniformly distributed heating U-shaped tubes in the drying oven, and by arranging a guide rod and a moving trolley controlled by a cylinder, the tray can be moved into the drying oven at one time for drying treatment.

[0004] When this technical solution is in use, the position of the tray for preventing drugs is fixed and its position cannot be adjusted. Therefore, when drying drugs of different sizes, it cannot adapt to different sizes of materials. As a result, the drying object of this drying equipment is limited, and the universality of the equipment is poor.

[0005] Therefore, we propose a vacuum drying oven. Summary of the Utility Model

[0006] The utility model mainly solves the technical problem of poor universality of the equipment, and provides a vacuum drying oven.

[0007] To achieve the above object, the utility model adopts the following technical solution. A vacuum drying oven includes

[0008] A drying oven body. One end of the outer wall of the drying oven body is provided with a door for controlling opening and closing, and the top of the drying oven body is provided with a vacuum rod communicated with the inner wall of the drying oven body;

[0009] A drying component, which is linearly arranged on the inner wall of the drying oven body. The drying component includes a frame plate, a drying basin and a heating ring. Limiting sliders are arranged at both ends of the outer walls on both sides of the frame plate, and the limiting sliders are slidably connected to the drying oven body;

[0010] Locking components are provided at both ends of the outer wall of the shelf board. The locking components include a plugging part and an adjusting part for adjusting the plugging part. The plugging part includes a sliding seat, a second return spring, and a plugging rod, and the adjusting part includes a pull rod and an adjusting block.

[0011] Furthermore, a plurality of horizontally arranged sliding grooves in linear arrangement are formed on the inner walls of both sides of the drying oven body. Longitudinal sliding grooves are formed at both ends of the inner walls of both sides of the drying oven body. The longitudinal sliding grooves intersect with the horizontal sliding grooves, and a plurality of linearly arranged limiting holes are formed in the longitudinal sliding grooves. The lengths of two adjacent sides of the limiting slider are respectively adapted to the widths of the horizontal sliding groove and the longitudinal sliding groove, and the limiting slider is slidably connected to the inner walls of the horizontal sliding groove and the longitudinal sliding groove.

[0012] Furthermore, first sliding holes are formed on the inner walls of both sides of the shelf board. An adjusting groove is formed at the position of the limiting slider in the first sliding hole. The pull rod is slidably connected to the inner wall of the first sliding hole. One end of the pull rod is fixedly connected with a pulling plate for pulling. The adjusting block is arranged in the adjusting groove and fixedly connected to the outer wall of the pull rod. The adjusting block is frustum-shaped, and a first return spring is arranged at the opposite ends of the adjusting block and the adjusting groove. The first return spring is sleeved on the outer wall of the pull rod.

[0013] Furthermore, a through second sliding hole is formed at one end of the adjusting groove, and the second sliding hole extends to the outer wall of one side of the limiting slider. The sliding seat is slidably connected to the inner wall of the second sliding hole. One end of the sliding seat is fixedly connected with a sliding block, and a wedge-shaped groove is formed on the outer wall of the adjusting block. The sliding block is slidably connected to the inner wall of the wedge-shaped groove.

[0014] Furthermore, one end of the second return spring is fixedly connected to the inner wall of the sliding seat. The plugging rod is slidably connected to the inner wall of the sliding seat. The other end of the second return spring is fixedly connected to one end of the plugging rod. The plugging rod is adapted to the limiting hole.

[0015] Furthermore, a heating ring for heating is arranged on the inner wall of the bottom of the drying basin. The heating ring is connected to the power supply end on the drying oven body through a circuit, and the heating ring is spiral-shaped.

[0016] Furthermore, a transmission shaft is rotatably connected to the inner wall of the drying basin through a motor. A scraper is fixedly connected to the outer wall of the transmission shaft. The bottom of the scraper is in contact with the inner wall of the bottom of the drying basin.

[0017] Furthermore, a concave scraping groove and a convex guiding groove are formed on one side of the rotating direction of the scraper and are communicated with each other. The scraping groove is concave, and the guiding groove is convex and communicated with the outer wall of the other side of the scraper.

[0018] Beneficial effects

[0019] The utility model provides a vacuum drying oven, which has the following beneficial effects:

[0020] (1) The vacuum drying oven can pull out the shelf board and the drying basin through the set locking component, which is convenient for loading and unloading. Moreover, it can drive the shelf board and the drying basin to move in the vertical direction, and then can adjust the distance between the two drying basins, which is convenient for drying drugs of different sizes and improves the universality of the equipment.

[0021] (2) The vacuum drying oven is provided with a scraping groove and a guiding groove. The design of the scraping groove can reduce the contact area between the scraping plate and the inner wall of the drying basin, increase the pressure, and then improve the scraping effect on the drying basin, avoiding the adhesion of drugs to the inner wall of the drying basin and affecting the drying effect. And through the arc surface of the guiding groove, the scraped drugs can be dispersed along the scraping groove and the guiding groove to the outer wall on the other side of the scraping plate for material turning, improving the uniformity of drug heating and the drying efficiency. Description of the Drawings

[0022] Figure 1 is the front view of the present utility model;

[0023] Figure 2 is the partial cross-sectional view at the shelf board of the present utility model;

[0024] Figure 3 is the Figure 2 enlarged view of part A of the present utility model;

[0025] Figure 4 is the cross-sectional view at the drying basin of the present utility model;

[0026] Figure 5 is the detailed view at the scraping plate of the present utility model.

[0027] Legend: 1. Drying oven body; 2. Door; 3. Vacuum pump; 4. Shelf board; 5. Drying basin; 6. Horizontal sliding groove; 7. Vertical sliding groove; 8. Limiting hole; 9. Limiting slider; 10. Pull rod; 11. Pulling plate; 12. Adjusting block; 13. First return spring; 14. Wedge-shaped groove; 15. Sliding block; 16. Sliding seat; 17. Second return spring; 18. Inserting rod; 19. Heating ring; 20. Transmission shaft; 21. Scraping plate; 22. Scraping groove; 23. Guiding groove. Detailed Embodiment

[0028] Embodiment 1: A vacuum drying oven, as Figure 1 、 Figure 2 and Figure 3 shown, includes

[0029] a drying oven body 1. One end of the outer wall of the drying oven body 1 is provided with a door 2 for controlling opening and closing, and the top of the drying oven body 1 is provided with a vacuum pump 3 connected to the inner wall of the drying oven body 1;

[0030] The drying assembly is linearly arranged on the inner wall of the drying box body 1. The drying assembly includes a shelf plate 4, a drying basin 5, and a heating ring 19. At both ends of the outer walls on both sides of the shelf plate 4, limit sliders 9 are provided, and the limit sliders 9 are slidably connected to the drying box body 1;

[0031] The locking assembly is arranged at both ends of the outer wall of the shelf plate 4. The locking assembly includes a plugging part and an adjusting part for adjusting the plugging part. The plugging part includes a sliding seat 16, a second return spring 17, and a plugging rod 18. The adjusting part includes a pull rod 10 and an adjusting block 12.

[0032] On both inner walls of the drying box body 1, a plurality of horizontally arranged sliding grooves 6 are linearly arranged. At both ends of both inner walls of the drying box body 1, longitudinal sliding grooves 7 are provided. The longitudinal sliding grooves 7 intersect with the horizontal sliding grooves 6, and a plurality of linearly arranged limit holes 8 are provided in the longitudinal sliding grooves 7. The lengths of the adjacent sides of the limit slider 9 are respectively adapted to the widths of the horizontal sliding groove 6 and the longitudinal sliding groove 7, and the limit slider 9 is slidably connected to the inner walls of the horizontal sliding groove 6 and the longitudinal sliding groove 7.

[0033] On both inner walls of the shelf plate 4, first sliding holes are provided. An adjusting groove is provided in the first sliding hole at the position of the limit slider 9. The pull rod 10 is slidably connected to the inner wall of the first sliding hole. One end of the pull rod 10 is fixedly connected with a pull plate 11 for pulling. The adjusting block 12 is arranged in the adjusting groove and fixedly connected to the outer wall of the pull rod 10. The adjusting block 12 is frustum-shaped. A first return spring 13 is provided at the opposite ends of the adjusting block 12 and the adjusting groove. The first return spring 13 is sleeved on the outer wall of the pull rod 10.

[0034] One end of the adjusting groove is provided with a penetrating second sliding hole, and the second sliding hole extends to one side outer wall of the limit slider 9. The sliding seat 16 is slidably connected to the inner wall of the second sliding hole. One end of the sliding seat 16 is fixedly connected with a sliding block 15. A wedge-shaped groove 14 is provided on the outer wall of the adjusting block 12, and the sliding block 15 is slidably connected to the inner wall of the wedge-shaped groove 14.

[0035] One end of the second return spring 17 is fixedly connected to the inner wall of the sliding seat 16. The plugging rod 18 is slidably connected to the inner wall of the sliding seat 16. The other end of the second return spring 17 is fixedly connected to one end of the plugging rod 18. The plugging rod 18 is adapted to the limit hole 8.

[0036] By providing the locking assembly, the shelf plate 4 and the drying basin 5 can be pulled out, which is convenient for loading and unloading. And it can drive the shelf plate 4 and the drying basin 5 to move in the vertical direction, and then the distance between the two drying basins 5 can be adjusted, which is convenient for drying drugs of different sizes and improves the universality of the equipment.

[0037] Such as Figure 4As shown in the figure, a heating ring 19 for heating is provided on the inner wall of the bottom of the drying basin 5. The heating ring 19 is connected to the power supply terminal on the drying box body 1 through a circuit, and the heating ring 19 is spiral-shaped.

[0038] The spiral design of the heating ring 19 can increase the heat receiving area of the drug and improve the drying efficiency.

[0039] As Figure 4 and Figure 5 As shown in the figure, a transmission shaft 20 is rotatably connected to the inner wall of the drying basin 5 through a motor. A scraping plate 21 is fixedly connected to the outer wall of the transmission shaft 20, and the bottom of the scraping plate 21 is in contact with the inner wall of the bottom of the drying basin 5.

[0040] On one side of the rotating direction of the scraping plate 21, a communicating scraping groove 22 and a guiding groove 23 are provided. The scraping groove 22 is concave, and the guiding groove 23 is convex and communicates with the outer wall of the other side of the scraping plate 21.

[0041] Through the provided scraping groove 22 and guiding groove 23, the design of the scraping groove 22 can reduce the contact area between the scraping plate 21 and the inner wall of the drying basin 5, increase the pressure, thereby improving the scraping effect on the drying basin 5, avoiding the adhesion of the drug to the inner wall of the drying basin 5 and affecting the drying effect. And through the arc surface of the guiding groove 23, the scraped drug can be dispersed along the scraping groove 22 and the guiding groove 23 to the outer wall of the other side of the scraping plate 21 for turning the material, improving the uniformity of the drug receiving heat and the drying efficiency.

[0042] The working principle of the present utility model: When drying is required, the raw materials are put into the drying basin 5, and the heating ring 19 is turned on for drying. At this time, turning on the motor on the transmission shaft 20 can drive the scraping plate 21 to rotate. The rotation of the scraping plate 21 can scrape the raw materials adhered to the bottom and guide the raw materials to the other side through the scraping groove 22 and the guiding groove 23 for turning the material; when it is necessary to fix the shelf plate 4, align the limit slider 9 on the shelf plate 4 with the transverse sliding groove 6 and slide it into the transverse sliding groove 6. When the limit slider 9 slides to the longitudinal sliding groove 7, the insertion rod 18 can be driven by the elastic force of the second return spring 17 to enter the limit hole 8 in the longitudinal sliding groove 7 to fix the limit slider 9, and then lock the shelf plate 4. When it is necessary to adjust the vertical position of the shelf plate 4 and the drying basin 5, at this time, pull the pull plate 11, which can drive the adjusting block 12 to move. At this time, the sliding block 15 slides in the wedge-shaped groove 14, and the movement of the sliding block 15 can drive the sliding seat 16 to move towards the side of the adjusting block 12, and then drive the second return spring 17 and the insertion rod 18 to move synchronously. The insertion rod 18 can be withdrawn from the limit hole 8, move the shelf plate 4, which can drive the limit slider 9 to slide in the longitudinal sliding groove 7. Move to the required position, release the pull plate 11, and the adjusting block 12 can be driven by the first return spring 13 to move back to the original position, and then drive the sliding seat 16 and the insertion rod 18 to move back to the original position. The insertion rod 18 is inserted into the limit hole 8 for locking.

[0043] The foregoing has shown and described the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above-mentioned embodiments, and what is described in the above-mentioned embodiments and the specification only illustrates the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will also have various changes and improvements, and these changes and improvements fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A vacuum drying oven, characterized in that: include: A drying box body (1), wherein a box door (2) for controlling opening and closing is arranged at one end of the outer wall of the drying box body (1), and a vacuum rod (3) connected to the inner wall of the drying box body (1) is arranged at the top of the drying box body (1); A drying assembly, the drying assembly is arranged linearly on the inner wall of the drying box body (1), the drying assembly comprises a frame plate (4), a drying basin (5) and a heating ring (19), both ends of the outer wall of both sides of the frame plate (4) are provided with limit sliders (9), and the limit sliders (9) are slidably connected to the drying box body (1); A locking assembly is arranged at both ends of the outer wall of the frame plate (4), and the locking assembly includes a plug-in portion and an adjustment portion for adjusting the plug-in portion, the plug-in portion includes a sliding seat (16), a second return spring (17) and a plug-in rod (18), and the adjustment portion includes a pull rod (10) and an adjustment block (12).

2. The vacuum drying oven according to claim 1, characterized in that: The inner walls of both sides of the drying box body (1) are provided with a plurality of linearly arranged transverse sliding grooves (6), and both ends of the inner walls of both sides of the drying box body (1) are provided with longitudinal sliding grooves (7), the longitudinal sliding grooves (7) intersect with the transverse sliding grooves (6), and a plurality of linearly arranged limiting holes (8) are provided in the longitudinal sliding grooves (7), the adjacent side lengths of the limiting sliding blocks (9) are respectively adapted to the widths of the transverse sliding grooves (6) and the longitudinal sliding grooves (7), and the limiting sliding blocks (9) are slidably connected to the inner walls of the transverse sliding grooves (6) and the longitudinal sliding grooves (7).

3. The vacuum drying oven according to claim 2, characterized in that: The inner walls on both sides of the frame plate (4) are provided with first sliding holes, and the first sliding holes are provided with adjustment grooves at the limiting slider (9). The pull rod (10) is slidably connected to the inner wall of the first sliding hole, and one end of the pull rod (10) is fixedly connected to a pull plate (11) for pulling. The adjustment block (12) is arranged in the adjustment groove and fixedly connected to the outer wall of the pull rod (10). The adjustment block (12) is truncated cone-shaped, and a first return spring (13) is arranged at the opposite end of the adjustment block (12) and the adjustment groove. The first return spring (13) is sleeved on the outer wall of the pull rod (10).

4. The vacuum drying oven according to claim 3, characterized in that: A second sliding hole is formed at one end of the adjusting groove, and the second sliding hole extends to the outer wall of one side of the limiting sliding block (9). The sliding seat (16) is slidably connected to the inner wall of the second sliding hole. A sliding block (15) is fixedly connected to one end of the sliding seat (16). A wedge-shaped groove (14) is formed on the outer wall of the adjusting block (12), and the sliding block (15) is slidably connected to the inner wall of the wedge-shaped groove (14).

5. The vacuum drying oven according to claim 4, characterized in that: One end of the second return spring (17) is fixedly connected to the inner wall of the sliding seat (16), the plug rod (18) is slidably connected to the inner wall of the sliding seat (16), the other end of the second return spring (17) is fixedly connected to one end of the plug rod (18), and the plug rod (18) is adapted to the limiting hole (8).

6. The vacuum drying oven according to claim 1, characterized in that: The inner wall at the bottom of the drying basin (5) is provided with a heating ring (19) for heating. The heating ring (19) is connected to the power supply terminal on the drying box body (1) through a circuit. The heating ring (19) is spiral-shaped.

7. The vacuum drying oven according to claim 1, characterized in that: The inner wall of the drying basin (5) is rotatably connected to a transmission shaft (20) via a motor, and the outer wall of the transmission shaft (20) is fixedly connected to a scraper (21), the bottom of the scraper (21) being in contact with the inner wall of the bottom of the drying basin (5).

8. The vacuum drying oven according to claim 7, characterized in that: A scraping groove (22) and a guide groove (23) are provided on one side of the scraper (21) in the rotation direction. The scraping groove (22) is concave, and the guide groove (23) is convex and is connected to the outer wall on the other side of the scraper (21).

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