Vacuum drying oven

Abstract

The utility model provides a vacuum drying drying oven, including the box, the box cover of setting in the open one end of box, still include array setting in the box and be used for compacting the compacting mechanism of box cover, set up between the locking mechanism of box and box cover, the lateral part of box is provided with two connecting columns, the edge of box cover is provided with the connecting arm corresponding with connecting column, the connecting hole is provided with in two connecting arms, and the connecting arm is set up on connecting column through connecting hole, and the locking mechanism includes the U shape piece of two ends respectively separable sleeve set up on connecting column, the magnet no. The lateral part of box is provided with magnet no. 2 that is inhaled with magnet no. 1 close to the box side of U shape piece. The utility model provides a vacuum drying drying oven, can be inhaled fixed after opening box cover, significantly reduces the security risk in the operation process, and the design of buffer rubber pad further reduces the impact when U shape piece and box contact, and then improves operation safety and stability.

Description

Technical Field

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

[0002] Vacuum drying ovens are commonly used drying equipment. By creating a vacuum, the internal pressure is reduced, thereby lowering the boiling point of the material and allowing it to rapidly evaporate moisture at low temperatures. They are particularly suitable for heat-sensitive, easily oxidized, or materials requiring deep drying. Also known as vacuum freeze dryers, they achieve dehydration and drying at extremely low temperatures by first deeply freezing the material and then removing the ice crystals directly as water vapor under a high vacuum environment. Existing vacuum drying ovens typically use a single latch locking mechanism to seal the lid. To open and remove the lid, the latch is released, and the lid is flipped to the side of the oven for easy loading and unloading of materials.

[0003] However, the lid structure of existing vacuum drying ovens is difficult to fix after it is opened by rotation, and it is easy to swing when loading and unloading materials, which may cause safety hazards. This solution addresses this technical problem. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a vacuum drying oven. By using a locking mechanism where a magnet on the U-shaped block and a magnet on the oven body can be separably attracted and locked together, the oven lid can be automatically locked after it is opened. This prevents the oven lid from moving due to accidental swinging or external force, significantly reducing safety hazards during operation. The design of the buffer pad further reduces the impact when the U-shaped block contacts the oven body, protecting the structural integrity and thus improving operational safety and stability.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a vacuum drying oven, including a box body, a shelf assembly disposed within the box body, a box cover disposed at one end of the opening of the box body, and further including a pressing mechanism arrayed on the box body for pressing the box cover, and a locking mechanism disposed between the box body and the box cover. Two connecting posts are vertically disposed on the side of the box body, and connecting arms corresponding to the connecting posts are disposed on the edge of the box cover. Connecting holes are provided through the two connecting arms, and the connecting arms are disposed on the connecting posts through the connecting holes. The locking mechanism includes a U-shaped block that can be detachably sleeved on the connecting posts at both ends, a magnet one disposed on the side of the U-shaped block near the box body, and a magnet two corresponding to the magnet one disposed on the side of the box body. The magnet two and the magnet one can be detachably attracted together.

[0006] A cushioning pad is provided on the side of the U-shaped block near the magnet, and the cushioning pad protrudes from the magnet.

[0007] The connecting hole is an oblong hole.

[0008] The clamping mechanism includes a hinge seat arrayed on the edge of the box body, a connecting rod hinged at one end to the hinge seat, a pressure block sleeved on the outside of the connecting rod for clamping the box cover, and a handwheel for clamping the pressure block. The connecting rod has an external thread on its outer side, and the handwheel has an internal thread on its inner side. The handwheel is threadedly connected to the connecting rod.

[0009] The connecting rod has a guide groove on its side, and the pressure block has a slider on its inner side. The pressure block is slidably disposed in the guide groove of the connecting rod by means of the slider.

[0010] The end of the pressure block is provided with a snap-fit ​​groove for accommodating the box cover and the edge of the box body.

[0011] The side of the U-shaped block has a through hole, and the side of the connecting arm has a threaded hole. A bolt for locking the U-shaped block is inserted in the through hole, and the bolt is threadedly connected to the threaded hole.

[0012] The top side of the box cover is provided with a lifting ring, and the side of the box cover is provided with a handle.

[0013] The hinge joint between the hinge seat and the connecting rod is provided with a damping structure.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] (1) The magnet on the U-shaped block of the locking mechanism and the magnet on the box body can be separably attracted and locked. After the box cover is opened, it can be automatically attracted and fixed, avoiding the box cover from moving due to accidental swing or external force. This significantly reduces the safety hazards during operation. The design of the buffer pad further reduces the impact when the U-shaped block contacts the box body, thereby improving the safety and stability of operation.

[0016] (2) The pressing mechanism uses a threaded handwheel to press the pressing block to slide along the guide groove, thereby achieving uniform and stable pressing of the pressing block on the box cover. The snap-fit ​​groove structure makes the pressing force distribution more reasonable. Combined with the design of the waist-shaped connecting hole, it allows the box cover to be finely adjusted in the axial direction, ensuring better sealing when the box cover and the box body are closed. It is suitable for drying operations in a vacuum environment, enhancing the sealing performance and pressing effect.

[0017] (3) The box cover is opened and closed by rotating through the connecting column and connecting arm, and is hoisted by external equipment through the lifting ring, which is suitable for working conditions with limited space. The detachable design of the U-shaped block further increases the flexibility. Users can completely remove the box cover as needed, which facilitates the loading and unloading of materials and equipment maintenance, and improves the ease of operation and adaptability;

[0018] (4) The cooperation between the slider on the pressure block and the guide groove on the connecting rod in the pressing mechanism ensures the stability of the movement of the pressure block and avoids the pressure block from tilting. The hinge seat and the connecting rod are provided with damping to prevent them from swinging freely, improve the controllability of operation, and increase the safety, reliability and durability of the device. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the locking mechanism of this utility model;

[0021] Figure 3 This is a schematic diagram of the connecting arm of this utility model;

[0022] Figure 4 This is a schematic diagram of the connecting column of this utility model;

[0023] Figure 5 This is an exploded view of the pressing mechanism of this utility model;

[0024] Figure 6 This is a schematic diagram of the structure of the pressure block of this utility model.

[0025] In the diagram: 1. Box body; 11. Connecting column; 12. Magnet II; 2. Box cover; 21. Connecting arm; 211. Connecting hole; 212. Threaded hole; 22. Lifting ring; 23. Handle; 3. Clamping mechanism; 31. Hinge seat; 32. Connecting rod; 321. Guide groove; 33. Pressure block; 331. Sliding block; 332. Snap-fit ​​groove; 34. Handwheel; 4. Locking mechanism; 41. U-shaped block; 411. Through hole; 42. Magnet I; 43. Buffer pad; 44. Bolt. Detailed Implementation

[0026] To more clearly illustrate the technical features of this solution, the following detailed implementation method will be used to explain the solution.

[0027] See Figures 1-6A vacuum drying oven includes a box body 1, a shelf assembly disposed inside the box body 1, a box cover 2 disposed at one end of the opening of the box body 1, a pressing mechanism 3 arranged in an array on the box body 1 for pressing the box cover 2, and a locking mechanism 4 disposed between the box body 1 and the box cover 2. Two connecting posts 11 are vertically arranged on the side of the box body 1, and connecting arms 21 corresponding to the connecting posts 11 are provided on the edge of the box cover 2. Connecting holes 211 are provided through the two connecting arms 21, and the connecting arms 21 are disposed on the connecting posts 11 through the connecting holes 211. The locking mechanism 4 includes a U-shaped block 41 that can be detachably sleeved on the connecting posts 11 at both ends, a magnet 42 disposed on the side of the U-shaped block 41 near the box body 1, and a magnet 12 corresponding to the magnet 42 disposed on the side of the box body 1. The magnet 12 and the magnet 42 can be detachably attracted together.

[0028] Note: The shelf assembly is not only a platform for carrying materials, but more importantly, it controls the temperature of the materials. The shelf assembly is hollow inside, acting as a flow channel to allow the thermally conductive silicone oil (or refrigerant) to circulate internally, thereby precisely controlling the shelf temperature. Freezing stage: The thermally conductive medium is cooled, rapidly freezing the material. Sublimation stage: The thermally conductive medium is heated, providing energy for the sublimation of ice (heat of sublimation). Some freeze dryers have adjustable shelf spacing to accommodate containers of different heights (such as trays and vials). Hydraulic or electric lifting: In some freeze dryers, the shelves can be moved after drying to press rubber stoppers into the bottle mouths, all completed under vacuum or inert gas conditions, ensuring product sterility. Shelf assemblies are existing technology for realizing the vacuum drying function of vacuum drying ovens and will not be described in detail here.

[0029] A buffer pad 43 is provided on the side of the U-shaped block 41 near the magnet 42, and the buffer pad 43 protrudes from the magnet 42.

[0030] Connecting hole 211 is an oblong hole.

[0031] The clamping mechanism 3 includes a hinge seat 31 arrayed on the edge of the box body 1, a connecting rod 32 hinged at one end to the hinge seat 31, a pressure block 33 sleeved on the outside of the connecting rod 32 for clamping the box cover 2, and a handwheel 34 for clamping the pressure block 33. The connecting rod 32 has an external thread on its outer side, and the handwheel 34 has an internal thread on its inner side. The handwheel 34 is threadedly connected to the connecting rod 32.

[0032] The side of the connecting rod 32 is provided with a guide groove 321, and the inner side of the pressure block 33 is provided with a slider 331. The pressure block 33 is slidably disposed in the guide groove 321 of the connecting rod 32 via the slider 331.

[0033] The end of the pressure block 33 is provided with a snap-fit ​​groove 332 for accommodating the edge of the box cover 2 and the box body 1.

[0034] The side of the U-shaped block 41 is provided with a through hole 411, and the side of the connecting arm 21 is provided with a threaded hole 212. A bolt 44 for locking the U-shaped block 41 is inserted in the through hole 411, and the bolt 44 is threadedly connected to the threaded hole 212.

[0035] A lifting ring 22 is provided on the top side of the box cover 2, and a handle 23 is provided on the side of the box cover 2.

[0036] A damping structure is provided at the hinge joint between the hinge seat 31 and the connecting rod 32.

[0037] The specific working process of this utility model:

[0038] In use, when it is necessary to open the lid 2, rotate the handwheel 34. The clamping block 33 releases its clamping constraint on the lid 2, and the locking groove 332 of the clamping block 33 separates from the edge of the lid 2. Hold the handwheel 34 and rotate the connecting rod 32 along the hinge seat 31 of the box body 1 until the clamping block 33 is completely separated from the lid 2. It should be noted that there is a certain damping between the connecting rod 32 and the hinge seat 31 to prevent the connecting rod 32 from swinging freely along the hinge seat 31. When all the clamping blocks 33 are engaged with the lid 2, the clamping block 33 will be completely separated from the lid 2. When the lid 2 is separated, hold the handle 23 and rotate the lid 2 along the connecting post 11. The connecting arm 21 drives the U-shaped block 41 of the locking mechanism 4 to rotate together. Under the buffering effect of the buffer pad 43, until the magnet 42 on the side of the U-shaped block 41 gets close to the magnet 12 on the side of the box body 1 and attracts the magnet 12, release the handle 23. The lid 2 is fixed by the attraction of the magnet 42 and the magnet 12, which prevents the lid 2 from swinging and reduces safety hazards.

[0039] When opening the box cover 2 in a confined space, first cancel the clamping mechanism 3 from clamping the box cover 2 according to the above operation, then loosen the bolt 44 on the U-shaped block 41. The bolt 44 is removed from the threaded hole 212 of the connecting arm 21, and then the U-shaped block 41 is removed from the connecting column 11. The U-shaped block 41 is then removed from the connecting arm 21. Subsequently, the box cover 2 is lifted and separated from the connecting column 11 by connecting the hook of the external hoisting equipment with the hoisting ring 22, and then the materials are picked up and put away.

[0040] After the materials are placed and removed, rotate the connecting rod 32 by holding the handwheel 34 so that the pressure block 33 abuts against the edge of the box cover 2. Turn the handwheel 34 so that the handwheel 34 drives the pressure block 33 to slide along the connecting rod 32 until the locking groove 332 of the pressure block 33 is in close contact with the box cover 2, thus pressing the box cover 2. At the same time, by setting the connecting hole 211 as an oblong hole, the box cover 2 moves axially relative to the box body 1, which is more conducive to the tight contact and sealing between the box cover 2 and the box body 1.

[0041] By using the separable attraction between the magnet 42 on the U-shaped block 41 of the locking mechanism 4 and the magnet 12 on the box body 1, the box cover 2 can be automatically attracted and fixed after it is opened, which prevents the box cover 2 from moving due to accidental swinging or external force, significantly reducing the safety hazards during operation. The design of the buffer pad 43 further reduces the impact when the U-shaped block 41 contacts the box body 1, thereby improving the safety and stability of operation.

[0042] The clamping mechanism 3 uses a threaded handwheel 34 to clamp the pressure block 33 to slide along the guide groove 321, thereby achieving uniform and stable clamping of the pressure block 33 on the box cover 2. The snap-fit ​​groove 332 structure makes the clamping force distribution more reasonable. Combined with the design of the waist-shaped connecting hole 211, it allows the box cover 2 to be finely adjusted in the axial direction, ensuring better sealing when the box cover 2 and the box body 1 are closed. It is suitable for drying operations in a vacuum environment and enhances the sealing and clamping effect.

[0043] The lid 2 is opened and closed by rotation via connecting column 11 and connecting arm 21, and is hoisted by external equipment via lifting ring 22, making it suitable for space-constrained working conditions. The detachable design of U-shaped block 41 further increases flexibility, allowing users to completely remove lid 2 as needed, facilitating material handling and equipment maintenance, and improving operational convenience and adaptability;

[0044] The cooperation between the slider 331 on the pressure block 33 and the guide groove 321 on the connecting rod 32 in the clamping mechanism 3 ensures the stability of the movement of the pressure block 33 and prevents the pressure block 33 from tilting. The hinge seat 31 and the connecting rod 32 are provided with damping to prevent them from swinging freely, improve the controllability of operation, and increase the safety, reliability and durability of the device.

[0045] In summary, this invention not only improves the safety and sealing performance of the equipment, but also significantly enhances the convenience and adaptability of operation. It is particularly suitable for vacuum drying processes with strict requirements for sealing and operating environment, and has high practical value and promising prospects for promotion.

[0046] Technical features not described in detail in this solution are based on conventional operations and general understanding of those skilled in the art, and are therefore not elaborated upon here. Technical features not described in this utility model can be implemented using existing technology, and will not be repeated here. Of course, the above description is not intended to limit this utility model, nor is it limited to the examples given above. Any changes, modifications, additions, or substitutions made by those skilled in the art within the scope of this utility model should also fall within the protection scope of this utility model.

Claims

1. A vacuum drying oven, comprising a box body (1), a shelf assembly disposed within the box body (1), and a box cover (2) disposed at one end of the opening of the box body (1), characterized in that, It also includes a pressing mechanism (3) arranged in an array on the box body (1) and used to press the box cover (2), and a locking mechanism (4) arranged between the box body (1) and the box cover (2). The side of the box body (1) is provided with two connecting posts (11) vertically. The edge of the box cover (2) is provided with a connecting arm (21) corresponding to the connecting post (11). The two connecting arms (21) are provided with a connecting hole (211) through them. The connecting arm (21) is arranged on the connecting post (11) through the connecting hole (211). The locking mechanism (4) includes a U-shaped block (41) that can be separably sleeved on the connecting post (11) at both ends, and a magnet (42) arranged on the side of the U-shaped block (41) near the box body (1). The side of the box body (1) is provided with a magnet (12) corresponding to the magnet (42). The magnet (12) can be separably attracted to the magnet (42).

2. The vacuum drying oven according to claim 1, characterized in that, A buffer pad (43) is provided on the side of the U-shaped block (41) near the magnet (42), and the buffer pad (43) protrudes from the magnet (42).

3. The vacuum drying oven according to claim 2, characterized in that, The connecting hole (211) is an oblong hole.

4. The vacuum drying oven according to claim 1, characterized in that, The pressing mechanism (3) includes a hinge seat (31) arrayed on the edge of the box body (1), a connecting rod (32) hinged at one end on the hinge seat (31), a pressure block (33) sleeved on the outside of the connecting rod (32) and used to press the box cover (2), and a handwheel (34) used to press the pressure block (33). The connecting rod (32) has an external thread on the outside, and the handwheel (34) has an internal thread on the inside. The handwheel (34) is threadedly connected to the connecting rod (32).

5. The vacuum drying oven according to claim 4, characterized in that, The connecting rod (32) is provided with a guide groove (321) on its side, and the pressure block (33) is provided with a slider (331) on its inner side. The pressure block (33) is slidably disposed in the guide groove (321) of the connecting rod (32) through the slider (331).

6. The vacuum drying oven according to claim 5, characterized in that, The end of the pressure block (33) is provided with a snap-fit ​​groove (332) for accommodating the edge of the box cover (2) and the box body (1).

7. The vacuum drying oven according to claim 3, characterized in that, The side of the U-shaped block (41) is provided with a through hole (411), and the side of the connecting arm (21) is provided with a threaded hole (212). A bolt (44) for locking the U-shaped block (41) is inserted in the through hole (411), and the bolt (44) is threadedly connected to the threaded hole (212).

8. The vacuum drying oven according to claim 3, characterized in that, The top side of the box cover (2) is provided with a lifting ring (22), and the side of the box cover (2) is provided with a handle (23).

9. The vacuum drying oven according to claim 4, characterized in that, The hinge joint between the hinge seat (31) and the connecting rod (32) is provided with a damping structure.

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