A freeze dryer drying rack that facilitates pre-freezing and drying.

Abstract

The utility model discloses a freeze dryer drying rack that is convenient for prefreezing and drying, including a drying rack and a drying rack support plate, wherein the drying rack support plate is detachably connected to the freeze dryer; the drying rack includes a handle, a column, and a bottom plate, and the freeze dryer is provided with a support plate fixing hole connected to the drying rack support plate. The utility model adopts the above structure to provide a freeze dryer drying rack that is convenient for prefreezing and drying, and is provided with a detachable drying rack support plate, and the two processes of prefreezing and drying can be completed by a set of drying racks; when prefreezing the product, the drying rack support plate is first removed, and the drying rack can be placed in a cold trap for prefreezing, and after the prefreezing is completed, the drying rack can be taken out through the handle, and the drying rack support plate is installed and then placed on it, and drying can be carried out; the process is simple and easy to operate; during use, there is no need to transfer the material trays one by one, which effectively reduces the risk of frostbite on the hands and the risk of breaking the temperature probe.

Description

Technical Field

[0001] The utility model relates to the technical field of freeze dryers, in particular to a freeze dryer drying rack which is convenient for pre-freezing and drying. Background Art

[0002] The basic principle of freeze drying is based on the three-state change of water. Water has solid, liquid and gaseous states, and the three states can be converted into each other and coexist. When water is at the triple point (temperature is 0.01℃, water vapor pressure is 610.5Pa), water, ice and water vapor can coexist and balance each other. Under high vacuum conditions, the sublimation principle is used to make the water in the pre-frozen material sublimate directly from ice to water vapor without melting the ice, thereby achieving the purpose of freeze drying.

[0003] Before freeze drying the product, it needs to be frozen to the freezing point. If there is no ultra-low temperature refrigerator, it is necessary to choose a freeze dryer with a pre-freezing function. Because the pre-freezing rack needs to be placed in the cold trap and the drying rack needs to be placed outside the cold trap, the drying rack and pre-freezing rack are commonly found in the market separately.

[0004] Some plates that need to be placed with temperature probes have long pre-freezing time and stiff wire harnesses. When they need to be moved to the drying rack after the pre-freezing is over, it is easy to get frostbite on the hands due to the low temperature, or the stiff temperature probe wires may be easily damaged. Utility Model Content

[0005] The utility model aims to provide a drying rack for a freeze dryer which is convenient for pre-freezing and drying. The two processes of pre-freezing and drying can be completed by a set of drying racks. During use, there is no need to move the feed tray, which can effectively prevent low-temperature frostbite or damage to the rigid temperature probe line.

[0006] To achieve the above-mentioned purpose, the utility model provides a drying rack for a freeze dryer which is convenient for pre-freezing and drying, comprising a drying rack and a drying rack support plate, wherein the drying rack support plate is detachably connected to the freeze dryer; the drying rack comprises a handle, a column and a bottom plate.

[0007] Preferably, the freeze dryer is provided with a support plate fixing hole connected to the drying rack support plate.

[0008] Preferably, the columns are symmetrically arranged on both sides of the handle and connected to the base plate.

[0009] Preferably, a plurality of material tray support plates are evenly arranged between the handle and the bottom plate, and the material tray support plates are fixed on the column.

[0010] Preferably, a matching material tray is placed on the material tray support plate.

[0011] Therefore, the utility model adopts a freeze dryer drying rack of the above structure which is convenient for pre-freezing and drying, and has the following technical effects:

[0012] (1) A detachable drying rack support is provided, and the pre-freezing and drying processes can be completed by using one set of drying racks;

[0013] (2) When pre-freezing the product, first remove the drying rack support plate, then place the drying rack in the cold trap for pre-freezing. After the pre-freezing is completed, the drying rack can be taken out by the handle, and after the drying rack support plate is installed, the drying rack can be placed on it to start drying. The process is simple and easy to operate.

[0014] (3) There is no need to transfer material trays one by one during use, which effectively reduces the risk of frostbite on hands and the risk of breaking the temperature probe.

[0015] The technical solution of the utility model is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the implementation or the prior art description. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0017] Figure 1 It is a schematic diagram of the positions of the drying rack, the support plate and the freeze dryer in an embodiment of a freeze dryer drying rack for facilitating pre-freezing and drying of the utility model;

[0018] Figure 2 The utility model is a schematic diagram of the structure of a drying rack of a freeze dryer which is convenient for pre-freezing and drying.

[0019] Reference numerals

[0020] 1. Freeze dryer body; 2. Drying rack; 3. Material tray support plate; 4. Material tray; 5. Drying rack support plate; 6. Support plate fixing hole; 21. Handle; 22. Column; 23. Bottom plate. DETAILED DESCRIPTION

[0021] The technical solution of the utility model is further described below through the accompanying drawings and embodiments.

[0022] Unless otherwise defined, the technical terms or scientific terms used in the present invention shall have the usual meanings understood by persons with ordinary skills in the field to which the present invention belongs. The words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. Words such as "include" or "comprise" and the like mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Words such as "connect" or "connected" and the like are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0023] Example

[0024] A freeze dryer drying rack that is convenient for prefreezing and drying, such as Figure 1 As shown, it includes a freeze dryer body 1 and a drying rack 2. The structure of the drying rack 2 is as follows Figure 2 As shown, it includes a handle 21, a column 22, and a bottom plate 23. One end of the column 22 is arranged on both sides of the handle 21, and the other end is connected to the bottom plate 23. A plurality of material tray support plates 3 are evenly fixed above the column 22, and the material tray support plates 3 are provided with matching material trays 4.

[0025] The bottom plate 23 of the drying rack 2 is connected to the freeze dryer body 1 through the drying rack support plate 5, and the freeze dryer body 1 is provided with a support plate fixing hole 6. The interior of the freeze dryer body 1 is a cold trap. After the drying rack support plate 5 is fixed to the freeze dryer body 1 through the support plate fixing hole 6, the drying rack 2 can be placed on the drying rack support plate 5 for drying. When the drying rack support plate 5 is not installed, the drying rack can prevent pre-freezing in the cold trap of the freeze dryer body 1. In the process from pre-freezing to drying, there is no need to take out the material tray 4. The drying rack 2 can be moved by the handle 21 to effectively prevent frostbite from low temperature. And

[0026] When the utility model is used, in the pre-freezing stage, the items to be freeze-dried need to be loaded into the material tray 4, and then the loaded material tray 4 is placed on the material tray support plate 3 reserved on the drying rack 2, and the temperature probe of the freeze dryer is placed in the center of the material tray 4 and fixed. The drying rack support plate 5 is taken away, and the drying rack 2 with the material tray 4 is placed into the cold trap of the freeze dryer body 1, and the lid is closed for pre-freezing. After the pre-freezing is completed, first gently take out the drying rack 3, be careful not to pull off the temperature probe, fix the drying rack support plate 5 on the freeze dryer body 1 through the support plate fixing hole 6, and then place the drying rack 2 on the drying rack support plate 5, put the vacuum bucket on it, and then low-temperature freeze-drying can be carried out.

[0027] Therefore, the utility model adopts a drying rack of a freeze dryer with the above structure, which is convenient for prefreezing and drying, and is provided with a detachable drying rack support plate. The two processes of prefreezing and drying can be completed by one set of drying racks. When prefreezing the product, the drying rack support plate is first removed, and the drying rack can be placed in a cold trap for prefreezing. After the prefreezing is completed, the drying rack can be taken out by a handle, and the drying rack support plate is installed and then the drying rack is placed thereon for drying. The process is simple and the operation is convenient. There is no need to transfer the material trays one by one during use, which effectively reduces the risk of frostbite on the hands and the risk of breaking the temperature probe.

[0028] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that they can still modify or replace the technical solution of the utility model with equivalents, and these modifications or equivalent replacements cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of the utility model.

Claims

1. A freeze dryer drying rack for facilitating prefreezing and drying, characterized in that: It includes a drying rack and a drying rack support plate, wherein the drying rack support plate is detachably connected to the freeze dryer; the drying rack includes a handle, a column, and a bottom plate; A plurality of material tray support plates are evenly arranged between the handle and the bottom plate, and the material tray support plates are fixed on the column; A matching material tray is placed on the material tray support plate.

2. A freeze dryer drying rack for prefreezing and drying according to claim 1, characterized in that: The freeze dryer is provided with a support plate fixing hole connected to the drying rack support plate.

3. A freeze dryer drying rack for prefreezing and drying according to claim 1, characterized in that: The uprights are symmetrically arranged on both sides of the handle and connected to the bottom plate.

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