Drying pan device with protective film for freeze drying

Abstract

The utility model discloses a freeze-drying baking pan device with a protective film. The freeze-drying baking pan device comprises a baking pan, a reel and a screen, the baking pan is in a groove shape which is sunken downwards, and the top of the baking pan is open. The reel is rotationally connected to one end of the top of the baking pan; one end of the screen mesh is a fixed end, the other end of the screen mesh is a free end, the fixed end of the screen mesh is fixed with the reel, the screen mesh is wound outside the reel, the screen mesh covers the top of the baking pan after being unfolded, and the screen mesh is provided with mesh holes. The baking pan device can freeze and dry medicines, and can prevent powder after freeze drying from splashing.

Description

Technical Field

[0001] The utility model relates to the technical field of medicine and chemical industry, and more specifically to a drying plate device with a protective film for freeze drying. Background Art

[0002] Drug drying is an important step in the drug production process. At present, when drying drugs, liquid drugs are usually placed in trays, and then the trays are placed in dryers to freeze-dry the drugs. However, the tops of the trays currently used are all open. For some drugs that are lighter after freeze-drying, there will be floating dust after drying, which will not only cause material loss, but also pollute the freeze dryer. For example, when drying drugs, they are dried in batches. If the first and second batches are of different types, the powder left after the first batch of drugs is dried and freeze-dried will pollute the second batch of drugs, increasing the impurities in the second batch of drugs.

[0003] Therefore, it is an urgent problem for those skilled in the art to develop a freeze-drying baking tray device with a protective film that can prevent the freeze-dried powder from splashing. Utility Model Content

[0004] In view of this, the utility model provides a freeze-drying baking tray device with a protective film which can prevent freeze-dried powder from splashing.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A drying plate device with a protective film for freeze drying, comprising:

[0007] A baking tray, wherein the baking tray is in the shape of a groove that is concave downward and has an open top;

[0008] A reel, the reel being rotatably connected to one end of the top of the baking tray;

[0009] A screen, one end of the screen is a fixed end, and the other end is a free end. The fixed end of the screen is fixed to the reel, and the screen is wound on the reel. After the screen is unfolded, it covers the top of the baking tray, and the screen has mesh holes.

[0010] The beneficial effect of adopting the above technical solution is that in the utility model, a layer of screen is covered at the top opening of the baking tray, and the powdered drug molecules are blocked by the screen to prevent the loss of drug molecules; and when not drying, the screen can be wound in the reel, which will not affect the removal or placement of the drug.

[0011] Preferably, the edge of the baking tray is 2-3 cm high. The height of the edge of the baking tray can ensure that the freeze-dried liquid can be added into the baking tray during drying.

[0012] Preferably, the mesh has an aperture of 300-600 meshes, which can prevent the dry drug powder from splashing and can also freeze-dry the drug in the baking tray.

[0013] Preferably, the free end of the screen is connected with a support plate, and the support plate is convenient for driving the screen to move and cover the baking tray.

[0014] Preferably, a handle for driving the screen to move is provided on the top of the support plate, and the setting of the handle facilitates driving the screen to move.

[0015] Preferably, at least one insertion groove is formed at one end of the support plate away from the screen, and an insertion block is provided at a position on the top of the baking tray opposite to the insertion groove, and when the screen completely covers the baking tray, the insertion block is inserted into the insertion groove. The insertion groove and the insertion block are inserted to fix the support plate, so that the screen stably covers the top of the baking tray, effectively preventing the drug powder from splashing.

[0016] Preferably, a slide groove is provided at a position corresponding to the edge of the baking tray on the support plate, the edge of the baking tray is embedded in the slide groove, and the slide groove is slidably arranged along the edge of the baking tray. The edge of the baking tray is placed in the slide groove to limit the movement of the support plate.

[0017] It can be seen from the above technical solutions that, compared with the prior art, the utility model discloses a drying plate device with a protective film for freeze drying, which has the following beneficial effects:

[0018] (1) In the utility model, the screen is wound on a reel, and the screen is pulled apart when in use and stored on the reel when not in use, which is easy to operate;

[0019] (2) The surface of the screen is provided with mesh holes, which can not only perform freeze drying but also prevent the powder after freeze drying from splashing. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0021] Figure 1 The accompanying drawing is a schematic structural diagram of a baking tray device in a rolled-up state provided by the utility model;

[0022] Figure 2 The accompanying drawing is a schematic structural diagram of a baking tray device provided by the present invention in a state where the screen is unfolded;

[0023] Figure 3 The accompanying drawings are provided by the utility model Figure 2 A magnified view of the structure at center.

[0024] Among them, in the figure,

[0025] 1-baking tray;

[0026] 11- plug block;

[0027] 2- reel; 3- screen;

[0028] 4- Support plate;

[0029] 41-plug slot; 42-slide slot;

[0030] 5-Handle. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] The utility model discloses a drying plate device with a protective film for freeze drying, comprising:

[0033] A baking tray 1, the baking tray 1 is in a groove shape that is concave downwards and has an open top;

[0034] A reel 2, the reel 2 is rotatably connected to one end of the top of the baking tray 1;

[0035] The screen 3 has one end as a fixed end and the other end as a free end. The fixed end of the screen 3 is fixed to the reel 2, and the screen 3 is wound on the reel 2. After the screen 3 is unfolded, it covers the top of the baking tray 1. The screen 3 has mesh holes. The screen 3 can be wound inside the reel 2 for easy storage and reduced exposed volume; the screen 3 can also be wound outside the reel 2, which has a simple structure and can be selected according to actual needs.

[0036] In order to further optimize the above technical solution, the screen 3 can be a resin protective film or a polymer protective film or a stainless steel screen plate, which can be wound around the reel 2 and cover the top of the baking tray. When the screen 3 is a resin protective film, a polymer material with stronger stability and stronger softness, such as polyimide, can be selected; when the screen 3 is a stainless steel screen plate, it has stronger stability and does not chemically react with the freeze-drying solvent.

[0037] In order to further optimize the above technical solution, when the screen 3 needs to be retracted, the reel 2 can automatically retract the screen 3. The reel 2 is provided with a spring to retract the screen 3 after the screen 3 is pulled out. The internal structure of the reel 2 to retract the screen 3 is the same as the structure of the existing tape measure that automatically retracts the ruler. The reel 2 is fixed above the baking tray 1 through the shell, and then the reel is rotatably connected to the shell.

[0038] In order to further optimize the above technical solution, the edge of the baking tray 1 is 2-3 cm high.

[0039] In order to further optimize the above technical solution, the mesh has a pore size of 300-600 meshes. The mesh with this pore size can volatilize the freeze-drying solvent during freeze-drying and effectively shield the freeze-dried sample so that it does not splash in the baking tray 1.

[0040] In order to further optimize the above technical solution, the free end of the screen 3 is connected with a support plate 4. The support plate 4 is made of a hard material, and mesh holes are also formed on its surface. When the screen 3 is wound on the reel 2, the support plate 4 will not be wound and is located outside the reel 2. The material of the support plate 4 is different from that of the screen 3, and the hardness of the material of the support plate 4 is greater than that of the screen 3.

[0041] In order to further optimize the above technical solution, a handle 5 for driving the screen 3 to move is provided on the top of the support plate 4, which facilitates operation when the screen 3 is stretched and covered.

[0042] In order to further optimize the above technical solution, at least one plug-in slot 41 is provided at one end of the support plate 4 away from the screen 3, and an insert block 11 is provided at the top of the baking tray 1 at a position opposite to the plug-in slot 41. When the screen 3 completely covers the baking tray 1, the insert block 11 is inserted into the plug-in slot 41. The plug-in slot 41 can be symmetrically arranged on both sides of the edge of the support plate 4, so that it can be more stably plugged with the insert block 11 on the baking tray 1; the insert block 11 is composed of two, and two insert blocks 11 are inserted into one plug-in slot 41, and the overall width formed by the two insert blocks 11 is greater than the width at the slot opening of the plug-in slot 41, and the slot opening width of the plug-in slot 41 is less than the slot bottom width. When the two insert blocks 11 are forced inward in relative directions, the two insert blocks 11 can be deformed and inserted into the inside of the plug-in slot 41 to achieve a fixing effect.

[0043] In order to further optimize the above technical solution, a slide groove 42 is provided at a position corresponding to the edge of the support plate 4 and the baking tray 1, and the edge of the baking tray 1 is embedded in the slide groove 42, and the slide groove 42 is slidably arranged along the edge of the baking tray 1. This arrangement can align the edge of the screen 3 with the edge of the baking tray 1, and the sealing effect of the dried object placed therein is better.

[0044] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part.

[0045] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A drying tray device with a protective film for freeze drying, characterized in that: include: A baking tray (1), the baking tray (1) being in the shape of a groove that is concave downwards and having an open top; A reel (2), the reel (2) being rotatably connected to one end of the top of the baking tray (1); A screen (3), one end of the screen (3) is a fixed end, and the other end is a free end, the fixed end of the screen (3) is fixed to the reel (2), and the screen (3) is wound on the reel (2), and the screen (3) covers the top of the baking tray (1) after being unfolded, and the screen (3) has mesh holes.

2. A freeze-drying drying plate device with a protective film according to claim 1, characterized in that: The edge of the baking tray (1) is 2-3 cm high.

3. A freeze-drying baking tray device with a protective film according to claim 1, characterized in that: The mesh has a pore size of 300-600 meshes.

4. A freeze-drying drying plate device with a protective film according to claim 1, characterized in that: The free end of the screen (3) is connected to a support plate (4).

5. A freeze-drying drying plate device with a protective film according to claim 4, characterized in that: A handle (5) for driving the screen (3) to move is provided on the top of the support plate (4).

6. A freeze-drying baking tray device with a protective film according to claim 4 or 5, characterized in that: At least one insertion groove (41) is formed at one end of the support plate (4) away from the screen (3); an insertion block (11) is arranged at a position on the top of the baking tray (1) opposite to the insertion groove (41); when the screen (3) completely covers the baking tray (1), the insertion block (11) is inserted into the insertion groove (41).

7. A freeze-drying drying plate device with a protective film according to claim 6, characterized in that: A slide groove (42) is provided at a position corresponding to the edge of the baking tray (1) on the support plate (4); the edge of the baking tray (1) is embedded in the slide groove (42), and the slide groove (42) is slidably arranged along the edge of the baking tray (1).

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