A vacuum drying oven

Abstract

This utility model belongs to the field of drying oven technology, specifically a vacuum drying oven, including a vacuum drying oven body; a door is hinged to the side wall of the vacuum drying oven body; an extension plate is fixed to the side wall of the door; a rolling assembly is provided at the bottom of the extension plate; a spring rod is installed on the side wall of the vacuum drying oven body; a fixing block is fixed to the top of the spring rod; the surface of the fixing block is arc-shaped; a sealing ring is installed inside the vacuum drying oven body; a material feeding assembly and a cleaning assembly are provided inside the vacuum drying oven body; through the above structure, the extension plate, spring rod, and fixing block can be set so that the extension plate can be locked by the fixing block, thereby fixing its position when the door is opened, reducing the possibility that the door will be impacted by external force after opening, causing it to rotate and close towards the vacuum drying oven body, thus affecting the removal of materials inside the vacuum drying oven body.

Description

Technical Field

[0001] This utility model belongs to the field of drying oven technology, specifically a vacuum drying oven. Background Technology

[0002] Vacuum drying ovens create a low-pressure environment and utilize the principles of boiling point reduction and accelerated molecular migration to achieve efficient drying of materials. They are widely used in pharmaceuticals, chemicals, food, and scientific research.

[0003] Existing vacuum drying ovens consist of components such as the oven body, oven door, vacuum pump, heating mechanism, and electrical control module. Through the synergistic effect of vacuum and heating, they achieve the drying requirements of low temperature, high efficiency, and no oxidation. However, during long-term use and observation, it was found that the oven door of existing vacuum drying ovens is usually mounted on the oven body in a rotating manner. When the oven door is opened and there is an external impact, or when materials are placed inside the oven and vibrate, the oven door will rotate towards the oven body, thus hindering the staff from handling the materials.

[0004] Therefore, this utility model provides a vacuum drying oven. Utility Model Content

[0005] To overcome the shortcomings of the prior art and solve at least one of the problems mentioned in the background art, a vacuum drying oven is proposed.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: A vacuum drying oven of this utility model includes a vacuum drying oven body; a door is hinged to the side wall of the vacuum drying oven body; an extension plate is fixed to the side wall of the door; a rolling assembly is provided at the bottom of the extension plate; a spring rod is installed on the side wall of the vacuum drying oven body; a fixing block is fixed to the top of the spring rod; the surface of the fixing block is arc-shaped; a sealing ring is installed inside the vacuum drying oven body; a material feeding assembly and a cleaning assembly are provided inside the vacuum drying oven body; through the above structure, the extension plate, spring rod, and fixing block are provided, and the extension plate can be locked by the fixing block, thereby fixing its position when the door is opened, reducing the possibility that the door will be impacted by external force after opening, causing it to rotate and close towards the vacuum drying oven body, thus affecting the removal of materials inside the vacuum drying oven body.

[0007] Preferably, the feeding assembly includes multiple sets of baffles; each set of baffles consists of two baffles; each set of baffles is symmetrically distributed within the vacuum drying oven body; each baffle has a pair of slots; a pair of trays are connected inside the vacuum drying oven body; each tray has a locking block on its side wall; the locking block corresponds to the slot; through the above structure, the baffles and slots, in conjunction with the trays and locking blocks, allow for easy adjustment of the tray's position within the vacuum drying oven body according to the material's height, thus accommodating materials of different heights and improving usability during use.

[0008] Preferably, the cleaning assembly includes a guide rail; the guide rail is installed inside the vacuum drying oven body; a sliding plate is slidably connected inside the guide rail; a scraper is fixedly connected to the bottom of the sliding plate; a fixing rod is fixedly connected to the side wall of the sliding plate; a handle is fixedly connected to the end of the fixing rod; and a fixing component is provided on the side wall of the sliding plate. With the above structure, the guide rail, sliding plate, and scraper, along with the fixing rod and handle, allow for easy cleaning of the bottom of the vacuum drying oven body by scraping out debris. This reduces the need for personnel to enter the vacuum drying oven body to clean debris, thus avoiding inconvenience in operation.

[0009] Preferably, the fixing component includes multiple magnets; all of the multiple magnets are fixed to the side wall of the slide plate; with the above structure, the slide plate is connected to the magnets and can be attracted to the inner wall of the vacuum drying oven body by the magnets, which can improve the stability of the slide plate and scraper in the position inside the vacuum drying oven body.

[0010] Preferably, a pull rod is fixed to the bottom of the spring rod; a rubber pad is installed in the middle of the pull rod; with the above structure, the pull rod and the rubber pad can be extended on the side of the spring rod to facilitate pulling the spring rod, while the rubber pad can increase the friction between the pull rod and the worker's hand to reduce slippage when pulling.

[0011] Preferably, the rolling assembly includes multiple rollers; the multiple rollers are rotatably connected to the bottom of the extension plate; with the above structure, the rollers are connected to the extension plate, which can reduce the friction between the extension plate and the fixed block, thereby reducing the wear between the extension plate and the fixed block.

[0012] The beneficial effects of this utility model are as follows:

[0013] 1. The vacuum drying oven of this utility model, by setting an extension plate, a spring rod and a fixing block, can be fixed by the fixing block to fix the position of the extension plate when the oven door is opened, so as to reduce the situation where the oven door is subjected to external force impact after opening, which may cause it to rotate and close towards the vacuum drying oven body and affect the removal of materials inside the vacuum drying oven body.

[0014] 2. The vacuum drying oven of this utility model, by setting baffles and slots, and cooperating with a tray and a locking block, allows the position of the tray within the vacuum drying oven body to be easily adjusted according to the height of the material, so as to adapt to materials of different heights and improve its applicability during use. Attached Figure Description

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

[0016] Figure 1 This is a perspective view of the present invention;

[0017] Figure 2 This is a schematic diagram of the structure of the vacuum drying oven body in this utility model;

[0018] Figure 3 This is a schematic diagram of the cooperation structure between the central tray and the main body of the vacuum drying oven of this utility model;

[0019] Figure 4 This is a schematic diagram of the cooperative structure of the scraper and the handle in this utility model;

[0020] Figure 5 This is a schematic diagram of the cooperation structure between the fixing block and the extension plate in this utility model.

[0021] Legend:

[0022] 1. Vacuum drying oven body; 11. Oven door; 12. Extension plate; 13. Spring rod; 14. Fixing block; 15. Sealing ring; 2. Stop bar; 21. Slot; 22. Storage tray; 23. Locking block; 3. Guide rail; 31. Slide plate; 32. Scraper; 33. Fixing rod; 34. Handle; 4. Magnet; 5. Pull rod; 51. Rubber pad; 6. Roller; 7. Observation window. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present 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.

[0024] Specific implementation examples are given below.

[0025] like Figures 1 to 5As shown in the embodiment of this utility model, a vacuum drying oven includes a vacuum drying oven body 1; a door 11 is hinged to the side wall of the vacuum drying oven body 1; an extension plate 12 is fixedly connected to the side wall of the door 11; a rolling assembly is provided at the bottom of the extension plate 12; a spring rod 13 is installed on the side wall of the vacuum drying oven body 1; a fixing block 14 is fixedly connected to the top of the spring rod 13; the surface of the fixing block 14 is arc-shaped; a sealing ring 15 is installed inside the vacuum drying oven body 1; a material feeding assembly and a cleaning assembly are provided inside the vacuum drying oven body 1; during operation, when drying materials, a tray containing materials or individual materials are placed inside the vacuum drying oven body 1 through the material feeding assembly, then the door 11 is closed, and the vacuum drying oven body 1 is started to heat the interior and evacuate the vacuum to dry the materials. After drying, the pressure is released, and then the door 11 is opened. Then, the door 11 is rotated 90 degrees, at which time the door 11 will drive the extension plate 12. 2. Rotate towards the fixed block 14. At this time, the extension plate 12 and its bottom rolling assembly will squeeze the fixed block 14 downward. After the extension plate 12 passes the fixed block 14, it will be stuck between the fixed block 14 and the vacuum drying oven body 1, thereby fixing the position of the door 11. Then, the tray or individual material can be taken out from the vacuum drying oven body 1. When it is necessary to close the door 11 again, the fixed block 14 can be moved downward by pulling down the spring rod 13, and the top of the fixed block 14 will be lower than the bottom of the extension plate 12. At this time, the door 11 can be rotated towards the side of the vacuum drying oven body 1. With the above structure, the extension plate 12, the spring rod 13 and the fixed block 14 are set. The extension plate 12 can be stuck by the fixed block 14, thereby fixing the position of the door 11 when it is opened. This reduces the impact of external force on the door 11 after it is opened, which may cause it to rotate towards the vacuum drying oven body 1 and close, thus affecting the removal of materials inside the vacuum drying oven body 1.

[0026] like Figure 2 and Figure 3As shown, the feeding assembly includes multiple sets of baffles 2; each set of baffles 2 consists of two baffles; each set of baffles 2 is symmetrically distributed within the vacuum drying chamber body 1; each baffle 2 has a pair of slots 21; a pair of trays 22 are connected inside the vacuum drying chamber body 1; the side walls of the trays 22 are provided with locking blocks 23; the locking blocks 23 are correspondingly arranged with the slots 21; during operation, when placing materials or trays containing materials into the vacuum drying chamber body 1, the position of the trays 22 can be adjusted according to the height of the materials. At this time, the trays 22 can be slightly lifted upwards to disengage the locking blocks 23 from the slots 21, and then the trays 22 can be removed from the vacuum drying chamber body 1. Remove the tray 22 from the drying chamber body 1, and then move it to the top or lower center of the vacuum drying chamber body 1 according to the height of the material. After inserting the tray 22 into the vacuum drying chamber body 1, let the locking block 23 fall into the locking groove 21, thereby fixing the tray 22 in the position between the baffles 2. Then place the material or tray on the tray 22 for drying. Through the above structure, the baffles 2 and the locking groove 21 are set, and the tray 22 and the locking block 23 are used. Through its movable structure, the position of the tray 22 in the vacuum drying chamber body 1 can be easily adjusted according to the height of the material, so as to adapt to materials of different heights and improve the applicability during use.

[0027] like Figure 2 and Figure 4 As shown, the cleaning assembly includes a guide rail 3; the guide rail 3 is installed inside the vacuum drying oven body 1; a sliding plate 31 is slidably connected inside the guide rail 3; a scraper 32 is fixedly connected to the bottom of the sliding plate 31; a fixing rod 33 is fixedly connected to the side wall of the sliding plate 31; a handle 34 is fixedly connected to the end of the fixing rod 33; a fixing assembly is provided on the side wall of the sliding plate 31; during operation, when the material is placed in the storage tray 22 for drying, some debris will fall from the mesh structure between the storage trays 22 to the bottom of the vacuum drying oven body 1. After drying, it is necessary to clean the debris from the bottom of the vacuum drying oven body 1. At this time, the handle 34 can be pulled to move it to the outside of the vacuum drying oven body 1, thereby driving the sliding plate. 31 and scraper 32 move to the outside of the vacuum drying oven body 1. At this time, scraper 32 can scrape the debris at the bottom of the vacuum drying oven body 1 to the outside of the vacuum drying oven body 1. Then push handle 34 to move into the vacuum drying oven body 1, so that the fixing component on slide plate 31 contacts the inside of the vacuum drying oven body 1, and the slide plate 31 and scraper 32 can be reset. Through the above structure, the guide rail 3, slide plate 31 and scraper 32 are set, and the fixing rod 33 and handle 34 are used to scrape the debris from the bottom of the vacuum drying oven body 1, which makes it easy to clean the bottom of the vacuum drying oven body 1. This can reduce the need for staff to go deep into the vacuum drying oven body 1 to clean the debris, which would cause inconvenience in operation.

[0028] like Figure 4As shown, the fixing component includes multiple magnets 4; all of the multiple magnets 4 are fixed to the side wall of the slide plate 31; during operation, when the slide plate 31 and scraper 32 are pushed back into position inside the vacuum drying oven body 1, the magnets 4 come into contact with the inner wall of the vacuum drying oven body 1. At this time, the magnets 4 will be attracted to the inner wall of the vacuum drying oven body 1, thereby fixing the position of the slide plate 31 and scraper 32. When it is necessary to use the scraper 32 to scrape the inside of the vacuum drying oven body 1, the magnets 4 can be released from the inner wall of the vacuum drying oven body 1 by pulling the handle 34, thus releasing the fixation of the slide plate 31. Through the above structure, the magnets 4 are connected to the slide plate 31, and the magnets 4 can be attracted to the inner wall of the vacuum drying oven body 1, which can improve the stability of the position of the slide plate 31 and scraper 32 inside the vacuum drying oven body 1.

[0029] like Figure 5 As shown, a pull rod 5 is fixedly connected to the bottom of the spring rod 13; a rubber pad 51 is installed in the middle of the pull rod 5; during operation, when the spring rod 13 is pulled downward, the operator can pull the spring rod 13 by holding the pull rod 5. At this time, the rubber pad 51 will contact the operator's palm. Through the above structure, the pull rod 5 and the rubber pad 51 are set, and the spring rod 13 can be extended on the side to facilitate the pulling of the spring rod 13. At the same time, the rubber pad 51 can increase the friction between the pull rod 5 and the operator's hand to reduce slippage when pulling.

[0030] like Figure 5 As shown, the rolling assembly includes multiple rollers 6; the multiple rollers 6 are rotatably connected to the bottom of the extension plate 12; during operation, when the extension plate 12 presses the fixing block 14 downward, the rollers 6 located at the bottom of the extension plate 12 will rotate on the surface of the fixing block 14. At this time, the sliding friction between the extension plate 12 and the fixing block 14 can be converted into rolling friction. Through the above structure, by setting the rollers 6 to connect the extension plate 12, the friction between the extension plate 12 and the fixing block 14 can be reduced, thereby reducing the wear between the extension plate 12 and the fixing block 14.

[0031] like Figure 1 As shown, an observation window 7 is installed in the middle of the door 11; the observation window 7 is made of transparent material; during operation, when the material is being dried inside the vacuum drying oven body 1, the drying status of the material inside can be observed through the observation window 7. Through the above structure, the observation window 7 can facilitate real-time observation of the drying status of the material inside the vacuum drying oven body 1.

[0032] Working principle: When drying materials, a tray containing materials or individual materials are placed inside the vacuum drying chamber body 1 via the feeding assembly. Then, the chamber door 11 is closed, and the vacuum drying chamber body 1 is activated to heat the interior and create a vacuum to dry the materials. After drying, the pressure is released, and then the chamber door 11 is opened. The chamber door 11 is then rotated 90 degrees. At this time, the chamber door 11 will drive the extension plate 12 to rotate towards the fixed block 14. The extension plate 12 and its bottom rolling assembly will press the fixed block 14 downwards. After the extension plate 12 passes the fixed block 14, it will be stuck between the fixed block 14 and the vacuum drying chamber body 1, thus fixing the position of the chamber door 11. Then, the tray or individual materials can be removed from the vacuum drying chamber body 1. When the chamber door 11 needs to be closed again, the fixing block 14 can be moved downward by pulling down the spring rod 13, so that the top of the fixing block 14 is lower than the bottom of the extension plate 12. At this time, the chamber door 11 can be rotated to one side of the vacuum drying chamber body 1. When placing materials or a tray containing materials into the vacuum drying chamber body 1, the position of the placement tray 22 can be adjusted according to the height of the materials. At this time, the placement tray 22 can be slightly lifted to disengage the locking block 23 from the locking slot 21. Then, the placement tray 22 can be removed from the vacuum drying chamber body 1. After that, the placement tray 22 can be moved to the top or lower middle of the vacuum drying chamber body 1 according to the height of the materials. After inserting the placement tray 22 into the vacuum drying chamber body 1, the locking block 23 can fall into the locking slot 21. This fixes the tray 22 between the baffles 2. Then, the material or pallet is placed on the tray 22 for drying. While the material is drying in the tray 22, some debris will fall through the mesh structure between the trays 22 to the bottom of the vacuum drying chamber body 1. After drying, the debris needs to be cleaned from the bottom of the vacuum drying chamber body 1. This can be done by pulling the handle 34 to move it outwards, which will move the slide plate 31 and scraper 32 outwards. The scraper 32 will then scrape the debris from the bottom of the vacuum drying chamber body 1 to the outside. Then, pushing the handle 34 inwards will move the fixing components on the slide plate 31 into the vacuum drying chamber body 1. When the inside of the chamber body 1 comes into contact, the slide plate 31 and scraper 32 can be reset. When the slide plate 31 and scraper 32 are pushed back into their original position inside the vacuum drying chamber body 1, the magnet 4 comes into contact with the inner wall of the vacuum drying chamber body 1. At this time, the magnet 4 will be attracted to the inner wall of the vacuum drying chamber body 1, thereby fixing the position of the slide plate 31 and scraper 32. When it is necessary to use the scraper 32 to scrape the inside of the vacuum drying chamber body 1, the magnet 4 can be released from the inner wall of the vacuum drying chamber body 1 by pulling the handle 34, thus releasing the fixation of the slide plate 31. When the spring rod 13 is pulled downward, the operator can pull the spring rod 13 by holding the pull rod 5. At this time, the rubber pad 51 will come into contact with the operator's palm. When the extension plate 12 presses the fixing block 14 downward,The roller 6, located at the bottom of the extension plate 12, rotates on the surface of the fixed block 14. This converts the sliding friction between the extension plate 12 and the fixed block 14 into rolling friction. When the material is drying inside the vacuum drying chamber 1, the drying process can be observed through the observation window 7.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A vacuum drying oven comprising a vacuum drying oven body (1); characterized in that: The vacuum drying oven body (1) has a door (11) hinged to its side wall; an extension plate (12) is fixed to the side wall of the door (11); a rolling assembly is provided at the bottom of the extension plate (12); a spring rod (13) is installed on the side wall of the vacuum drying oven body (1); a fixing block (14) is fixed to the top of the spring rod (13); the surface of the fixing block (14) is arc-shaped; a sealing ring (15) is installed inside the vacuum drying oven body (1); a material feeding assembly and a cleaning assembly are provided inside the vacuum drying oven body (1).

2. The vacuum drying oven according to claim 1, characterized in that: The feeding assembly includes multiple sets of baffles (2); each set of baffles (2) consists of two baffles; each set of baffles (2) is symmetrically distributed inside the vacuum drying oven body (1); a pair of slots (21) are provided on the baffles (2); a pair of trays (22) are connected inside the vacuum drying oven body (1); the side wall of the trays (22) is provided with a locking block (23); the locking block (23) is correspondingly set with the slot (21).

3. A vacuum drying oven according to claim 1, characterized in that: The cleaning assembly includes a guide rail (3); the guide rail (3) is installed inside the vacuum drying oven body (1); a slide plate (31) is slidably connected inside the guide rail (3); a scraper (32) is fixedly connected to the bottom of the slide plate (31); a fixing rod (33) is fixedly connected to the side wall of the slide plate (31); a handle (34) is fixedly connected to the end of the fixing rod (33); and a fixing assembly is provided on the side wall of the slide plate (31).

4. The vacuum drying oven of claim 3, wherein: The fixing component includes a plurality of magnets (4); all of the plurality of magnets (4) are fixed to the side wall of the slide plate (31).

5. The vacuum drying oven of claim 1, wherein: A pull rod (5) is fixedly connected to the bottom of the spring rod (13); a rubber pad (51) is installed in the middle of the pull rod (5).

6. The vacuum drying oven of claim 1, wherein: The rolling assembly includes a plurality of rollers (6); the plurality of rollers (6) are rotatably connected to the bottom of the extension plate (12).

7. The vacuum drying oven of claim 1, wherein: An observation window (7) is installed in the middle of the box door (11); the observation window (7) is made of transparent material.

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