Freeze dryer

Abstract

The freeze dryer comprises a machine body, a storage assembly and a sealing cover, a workbench is arranged at the top of the machine body, and a refrigerating device is arranged in the machine body and located below the workbench; the storage assembly comprises a storage rack, a plurality of heating plates and a container rack, the heating plates are arranged on the storage rack at intervals, the container rack can be separately arranged on the storage rack, and the bottoms of the product containers abut against the upper surfaces of the heating plates; a cold trap cavity is formed in the inner side of the sealing cover, the storage assembly is located in the cold trap cavity, and the cold trap cavity communicates with the refrigerating device. The product container is sealed in the cold trap cavity by the sealing cover and can be frozen by the refrigerating device, and then the product container is heated and dried by the heating disc. In addition, through the separable container racks, the container racks can be taken out of or put into the storage rack in a unified mode, so that rapid feeding and discharging can be achieved, the product freeze-drying efficiency is improved, and the utilization rate of equipment can also be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of freeze drying, in particular to a freeze drying machine. Background Art

[0002] A freeze dryer, or lyophilizer, is an advanced drying device. Its working principle is to use a freezing medium to freeze an object, converting the water in the object into solid ice, and then sublimating the ice into water vapor directly in a vacuum environment, thereby achieving a drying effect. The freeze drying technology of a freeze dryer is widely used in the production and preservation of drugs, biological products, and medical devices, which can effectively extend the shelf life of the product and ensure the efficacy and activity of the drug.

[0003] In the freeze-drying process of a freeze dryer for biological products, a large number of product containers are often required to be placed in the freeze-drying area of ​​the freeze dryer, and the sample containers are manually placed or removed, resulting in low freeze-drying efficiency and failure to meet freeze-drying needs. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides a freeze dryer that can quickly add products to the freeze dryer or take products out of the freeze dryer, thereby improving the utilization rate of the freeze dryer.

[0005] According to the freeze dryer of the embodiment of the utility model, the freeze dryer comprises:

[0006] A machine body, wherein the top of the machine body is provided with a workbench, and a refrigeration device is arranged in the machine body and is located below the workbench;

[0007] a storage assembly, the storage assembly is arranged on the workbench, the storage assembly comprises a storage rack, a plurality of heating plates and a container rack, the plurality of heating plates are arranged on the storage rack at intervals, the container rack can be detachably arranged on the storage rack, the container rack is provided with a plurality of accommodating holes for limiting the position of product containers, the container rack is placed on the storage rack, and the bottom of the product container abuts against the upper surface of the heating plate; and

[0008] A sealing cover is arranged on the workbench, a cold trap cavity is formed inside the sealing cover, the storage component is located in the cold trap cavity, and the cold trap cavity is connected to the refrigeration device.

[0009] According to the freeze drying machine of the embodiment of the utility model, at least the following beneficial effects are achieved: the sealing cover seals the product container in the storage assembly in the cold trap cavity, and the refrigeration device is used to freeze the product container, and then the heating plate is used to heat and dry the product container. In addition, through the detachable container rack, the container racks can be taken out of the storage rack at the same time or the container rack with product containers placed in advance can be put in, so that the material can be loaded and unloaded quickly, which improves the efficiency of product freeze drying and also improves the utilization rate of the equipment.

[0010] According to some embodiments of the utility model, a plurality of slide rails are provided on the storage rack, and the plurality of slide rails are respectively located above the heating plate, and the height of the slide rails is adjustable relative to the storage rack, and both sides of the container rack can be slidably arranged on the slide rails.

[0011] According to some embodiments of the present invention, four supporting feet are further provided at the bottom end of the container rack, and the four supporting feet are respectively located at the four corners of the container rack, and the bottom ends of the supporting feet abut against the upper surface of the heating plate.

[0012] According to some embodiments of the present invention, the length of the supporting legs is adjustable.

[0013] According to some embodiments of the utility model, a fixing member is further provided on the container rack, and the fixing member is provided at the bottom end of the container rack and located on one side of the accommodating hole, and the accommodating holes are arranged in sequence, and the fixing member includes:

[0014] A plurality of swing rods, the swing rods are rotatably arranged below the container rack and located on one side of the receiving hole;

[0015] A connecting rod, the connecting rod being translationally movably disposed below the container rack, the connecting rod being hinged to one end of the plurality of swing rods along a length direction, and the other end of the swing rod being capable of swinging below the receiving hole; and

[0016] A shifting rod, wherein the shifting rod is movably arranged in the container frame, the lower end of the shifting rod is connected to one end of the connecting rod through an elastic member, and the shifting rod drives the connecting rod to translate through the elastic member.

[0017] According to some embodiments of the utility model, a rubber sleeve is provided on one side of the swing rod at one end below the accommodating hole, and the rubber sleeve has an arc-shaped groove.

[0018] According to some embodiments of the utility model, a limiting groove is provided on the container rack, and the limiting groove includes a waist-shaped groove and a clamping groove, the clamping groove is located at one end of the waist-shaped groove and connected to the waist-shaped groove, and the shifting rod is passed through the limiting groove.

[0019] According to some embodiments of the utility model, a butt-supporting plate is provided on one side of the rack, and the butt-supporting plate is vertically arranged on an end surface of one side of the rack, and one end of the container rack can be butted against the butt-supporting plate.

[0020] According to some embodiments of the present invention, the freeze dryer further comprises a protective chamber, which is disposed on the outer peripheral side of the machine body and has a chamber door.

[0021] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0023] Figure 1 A schematic diagram of a freeze dryer according to an embodiment of the present utility model;

[0024] Figure 2 for Figure 1 A schematic diagram of a storage assembly of a freeze dryer is shown;

[0025] Figure 3 for Figure 2 Another perspective schematic diagram of the storage assembly is shown;

[0026] Figure 4 for Figure 3 An enlarged schematic diagram of the bottom of the container rack of the storage assembly is shown;

[0027] Figure 5 for Figure 3 An enlarged schematic view of the upper portion of the container rack of the storage assembly is shown.

[0028] Reference numerals:

[0029] Product container 1;

[0030] Machine body 10; workbench 11;

[0031] Storage assembly 20; storage rack 21; slide rail 211; top plate 212; heating plate 22; container rack 23; receiving hole 231; supporting foot 232; fixing member 233; swing rod 2331; connecting rod 2332; lever 2333; elastic member 2334; limiting groove 234; waist-shaped groove 2341; card slot 2342;

[0032] Protection chamber 30. DETAILED DESCRIPTION

[0033] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0034] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0035] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0036] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0037] Reference Figures 1 to 3 According to the freeze dryer of the embodiment of the utility model, the freeze dryer comprises: a body 10, a storage assembly 20 and a sealing cover. The top of the body 10 is provided with a workbench 11, and a refrigeration device is arranged in the body 10 and is located below the workbench 11; the storage assembly 20 is arranged on the workbench 11, and the storage assembly 20 comprises a storage rack 21, a plurality of heating plates 22 and a container rack 23, a plurality of heating plates 22 are arranged on the storage rack 21 at intervals, and the container rack 23 can be detachably arranged on the storage rack 21, and the container rack 23 is provided with a plurality of accommodating holes 231 for limiting the position of the product container 1, and the container rack 23 is placed on the storage rack 21, and the bottom of the product container 1 abuts against the upper surface of the heating plate 22; the sealing cover is arranged on the workbench 11, and a cold trap cavity is formed inside the sealing cover, and the storage assembly 20 is located in the cold trap cavity, and the cold trap cavity is connected with the refrigeration device. The embodiment of the utility model provides a freeze dryer, which can be applicable to the field of biopharmaceuticals and can efficiently perform freeze drying treatment on products, and the products can be recombinant proteins, growth factors, cell solutions, etc.

[0038] Specifically, the body 10 of the freeze dryer provides stable support for the entire device. A workbench 11 is designed on the top of the body 10. The workbench 11 is flat and stable and can bear the weight of the storage assembly 20 and the sealing cover set thereon. A refrigeration device is configured inside the body 10. The refrigeration device is arranged below the workbench 11 so as to communicate with the cold trap cavity in the sealing cover, thereby achieving efficient cooling effect and ventilation and heat dissipation effect. The storage assembly 20 is used to directly carry the products to be dried. The storage assembly 20 specifically includes a storage rack 21, a plurality of heating plates 22 and a container rack 23. The storage rack 21 is firmly arranged on the workbench 11, and its structural design is reasonable, which can ensure the stable placement of the heating plate 22 and the container rack 23. Multiple heating plates 22 are arranged on the storage rack 21 at intervals. The design of the heating plate 22 takes into account the need for uniform heating, ensuring that each product container 1 can be heated evenly. The heating plate 22 is made of a material with good thermal conductivity and can transfer heat quickly and evenly. The container rack 23 is designed to be detachable and can be conveniently placed on the storage rack 21. The container rack 23 is provided with a plurality of receiving holes 231, which are used to limit the product container 1 to ensure that the product container 1 does not move or fall during the freeze-drying process. The bottom of the product container 1 is tightly against the upper surface of the heating plate 22, and this design can ensure effective heat transfer and improve drying efficiency.

[0039] The sealing cover is arranged on the workbench 11, and a closed cold trap cavity is formed on the inner side thereof. The storage assembly 20 is completely located in the cold trap cavity, ensuring that the product is in a low temperature and low humidity environment during the freeze-drying process, thereby effectively preventing the product from being oxidized and contaminated during the drying process. The cold trap cavity is connected to the refrigeration device in the body 10, and the cold air generated by the refrigeration device can directly enter the cold trap cavity to cool the product quickly and evenly. At the same time, when the product needs to be heated and dried in a vacuum environment, the moist hot air can also be quickly discharged from the connected channel. In addition, the design of the sealing cover also takes into account the convenience of operation, and can be easily opened and closed to facilitate the placement and removal of products.

[0040] Therefore, it can be understood that the freeze dryer according to the embodiment of the utility model has at least the following beneficial effects: the sealing cover seals the product container 1 in the storage assembly 20 in the cold trap cavity, and the product container 1 can be frozen by the refrigeration device, and then the heating plate 22 is used to heat and dry the product container 1. In addition, through the detachable container rack 23, the container rack 23 can be taken out from the storage rack 21 at a time or the container rack 23 with the product container 1 placed in advance can be put in, so that the material can be loaded and unloaded quickly, the efficiency of product freeze drying can be improved, and the utilization rate of the equipment can be improved.

[0041] Reference Figures 2 to 4In some embodiments of the utility model, a plurality of slide rails 211 are provided on the storage rack 21, and the plurality of slide rails 211 are respectively located above the heating plate 22. The height of the slide rails 211 is adjustable relative to the storage rack 21, and both sides of the container rack 23 can be slidably arranged on the slide rails 211.

[0042] Specifically, the storage rack 21 of the freeze dryer is provided with a plurality of slide rails 211, which are located above the heating plate 22, so as to evenly heat the items placed on the container rack 23. The slide rail 211 is designed to be height-adjustable, and such a design can adjust the distance between the container rack 23 and the heating plate 22 according to the actual needs of the specifications of the product container 1, thereby optimizing the heating effect. The height of the slide rail 211 can be adjusted by a manual or electric lifting mechanism, or by replacing support columns of different lengths. The two sides of the container rack 23 are designed to be able to slide on the slide rails 211, and such a design can easily push or pull the container rack 23 out, so as to facilitate the placement or removal of the items to be dried. In addition, the sliding design also allows the user to easily adjust the position of the container rack 23 without moving the entire storage rack 21, so that it is aligned with the heating plate 22 and makes it so as to achieve the best heating effect.

[0043] In actual operation, the user can first adjust the slide rail 211 to a suitable height according to the height requirement of the product container 1, and then push the container rack 23 along the slide rail 211 to the top of the heating plate 22. The items to be dried can be placed on the container rack 23 and heated and dried by the heating plate 22. During the drying process, if the position or height of the container rack 23 needs to be adjusted, it is only necessary to easily slide or adjust the slide rail 211. In general, this design improves the convenience and flexibility of the freeze dryer, allowing users to perform drying operations more conveniently.

[0044] Similarly, refer to Figures 2 to 4 In some embodiments of the present invention, four supporting feet 232 are further provided at the bottom end of the container rack 23 . The four supporting feet 232 are respectively located at the four corners of the container rack 23 , and the bottom ends of the supporting feet 232 abut against the upper surface of the heating plate 22 .

[0045] Specifically, the four support legs 232 are distributed on the four corners of the container rack 23, providing a stable support for the container rack 23. The design of the support legs 232 not only enhances the stability of the container rack 23, but also effectively prevents the container rack 23 from directly contacting the heating plate 22, thereby avoiding possible thermal damage or deformation. The four support legs 232 can be made of wear-resistant and heat-resistant materials, such as high-strength plastic or metal, to ensure its durability and stability during use. In actual operation, when the slide rails 211 on both sides of the container rack 23 fail, they can also be supported by the four support legs 232. Therefore, it can be understood that in some embodiments of the utility model, the length of the support legs 232 is adjustable, and the length of the support legs 232 can be adjusted by a threaded connection. By adjusting the length of the support legs 232, the height between the container rack 23 and the heating plate 22 is adapted to the height of the product container 1, so that the bottom of the product container 1 abuts against the heating plate 22.

[0046] Reference Figures 2 to 4 In some embodiments of the utility model, a fixing member 233 is further provided on the container rack 23. The fixing member 233 is provided at the bottom end of the container rack 23 and is located on one side of the receiving hole 231. The receiving holes 231 are arranged in sequence. The fixing member 233 includes: a plurality of swing rods 2331, a connecting rod 2332 and a lever 2333. The swing rod 2331 is rotatably provided below the container rack 23 and is located on one side of the receiving hole 231; the connecting rod 2332 is translationally provided below the container rack 23. The connecting rod 2332 is hinged to one end of the plurality of swing rods 2331 along the length direction, and the other end of the swing rod 2331 can swing below the receiving hole 231; the lever 2333 is movably provided in the container rack 23. The lower end of the lever 2333 is connected to one end of the connecting rod 2332 through an elastic member 2334. The lever 2333 drives the connecting rod 2332 to translate through the elastic member 2334.

[0047] Specifically, the fixing member 233 mainly includes a plurality of swing rods 2331, a connecting rod 2332 and a lever 2333. The swing rod 2331 is rotatably arranged below the container rack 23 and is located on one side of the receiving hole 231. This design allows the swing rod 2331 to be flexibly adjusted as needed to adapt to product containers 1 of different sizes and shapes. The connecting rod 2332 is arranged below the container rack 23 in a translational manner and is hinged to one end of the plurality of swing rods 2331 along its length direction. When the connecting rod 2332 translates, it drives the swing rod 2331 to swing, thereby adjusting the position of the swing rod 2331 below the receiving hole 231. The lever 2333 is movably arranged in the container rack 23, and its lower end is connected to one end of the connecting rod 2332 through an elastic member 2334. By operating the lever 2333, the connecting rod 2332 can be translated by the force of the elastic member 2334, thereby adjusting the position of the swing rod 2331. This design not only makes the operation more convenient, but also can flexibly fix the items in the receiving hole 231 as needed. In actual operation, the user can adjust the position of the swing rod 2331 by toggling the lever 2333 according to the size and shape of the items placed in the receiving hole 231 to achieve the best fixing effect. The use of the elastic member 2334 not only ensures the smoothness of the operation, but also keeps the swing rod 2331 in a stable position after adjustment.

[0048] In some embodiments of the utility model, a rubber sleeve is provided on one side of the swing rod 2331 at one end below the receiving hole 231, and the rubber sleeve has an arc-shaped groove. Specifically, the rubber sleeve is carefully installed on one side of the swing rod 2331, and its material is soft and elastic, so that it can protect the product container 1 placed in the receiving hole 231 from potential scratches or collisions of the hard swing rod 2331, and provide sufficient friction to ensure that the product container 1 remains stable during the freeze-drying process. It is worth noting that an arc-shaped groove is also designed on the rubber sleeve. The shape and size of this groove are precisely calculated to better adapt to and fix product containers 1 of various shapes and sizes. Through the close fit between the groove and the product container 1, the movement of the items during the drying process can be further reduced, thereby improving the drying efficiency and effect.

[0049] Reference Figure 2 as well as Figure 5In some embodiments of the utility model, a limiting groove 234 is provided on the container rack 23, and the limiting groove 234 includes a waist-shaped groove 2341 and a clamping groove 2342. The clamping groove 2342 is located at one end of the waist-shaped groove 2341 and connected to the waist-shaped groove 2341, and the lever 2333 is penetrated in the limiting groove 234. The limiting groove 234 specifically consists of the waist-shaped groove 2341 and the clamping groove 2342. The design of the waist-shaped groove 2341 allows the lever 2333 to move smoothly within a certain range therein, which is convenient for user operation and can ensure the stability of the lever 2333 during movement. The clamping groove 2342 is located at one end of the waist-shaped groove 2341 and is connected to the waist-shaped groove 2341. When the lever 2333 moves to the clamping groove 2342 position, it can stay therein stably without unnecessary movement due to external force or device vibration. In actual operation, the lever 2333 is inserted into the limiting groove 234, and the user can adjust the position of the connecting rod 2332 and the swing rod 2331 by moving the lever 2333, thereby fixing the product container 1 in the receiving hole 231. When the lever 2333 is moved to the position of the card slot 2342 and fixed, the position of the connecting rod 2332 and the swing rod 2331 is also determined, ensuring the stability of the product container 1 during the freeze-drying process.

[0050] Reference Figure 2 as well as Figure 3 In some embodiments of the present invention, a support plate 212 is provided on one side of the rack 21. The support plate 212 is vertically arranged on one side end surface of the rack 21, and one end of the container rack 23 can be supported on the support plate 212. The support plate 212 is vertically installed on one side end surface of the rack 21 to form a solid and precise support surface. When the container rack 23 is pushed into the rack 21, one end of the container rack 23 can be tightly supported on the support plate 212, thereby ensuring the position stability and accuracy of the container rack 23 during the freeze-drying process.

[0051] Reference Figure 1 In some embodiments of the present invention, the freeze dryer further includes a protective chamber 30 (not shown in the figure), which is disposed on the outer peripheral side of the machine body 10 and has a chamber door.

[0052] Specifically, in the freeze dryer of the present embodiment, a key component, a protective chamber 30, is also included. This protective chamber 30 is arranged on the outer peripheral side of the body 10, providing an additional protective layer for the entire freeze drying process. The main function of the protective chamber 30 is to protect the body 10 from the influence of the external environment, such as dust, dirt and other potential pollutants. This not only helps to maintain the cleanliness and performance of the equipment, but also prolongs its service life to a certain extent. At the same time, the protective chamber 30 also plays a role in sound insulation and heat insulation, which helps to reduce the noise and heat loss during the operation of the equipment, thereby improving energy efficiency. It is particularly noteworthy that the protective chamber 30 is equipped with a convenient chamber door. This chamber door is designed to be both practical and easy to operate, so that the user can easily open or close it for daily inspection, maintenance and maintenance of the equipment. In addition, it is conceivable that a ventilation and heat dissipation device, a vacuum device, a pressure display, a temperature display device, etc. can also be provided on the protective chamber 30 to facilitate the control and detection of the internal environment, so that the freeze drying of the product is more convenient and reliable.

[0053] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A freeze dryer, characterized in that: include: A machine body, wherein the top of the machine body is provided with a workbench, and a refrigeration device is arranged in the machine body and is located below the workbench; A storage component, the storage component is arranged on the workbench, the storage component comprises a storage rack, a plurality of heating plates and a container rack, the plurality of heating plates are arranged on the storage rack at intervals, the container rack can be detachably arranged on the storage rack, the container rack is provided with a plurality of accommodating holes for limiting the position of product containers, the container rack is placed on the storage rack, and the bottom of the product container abuts against the upper surface of the heating plate; as well as A sealing cover is arranged on the workbench, a cold trap cavity is formed on the inner side of the sealing cover, the storage component is located in the cold trap cavity, and the cold trap cavity is connected to the refrigeration device.

2. A freeze dryer according to claim 1, characterized in that: The storage rack is provided with a plurality of slide rails, which are respectively located above the heating plate. The height of the slide rails is adjustable relative to the storage rack, and the two sides of the container rack can be slidably arranged on the slide rails.

3. A freeze dryer according to claim 1, characterized in that: The bottom end of the container rack is also provided with four supporting feet, which are respectively located at the four corners of the container rack, and the bottom ends of the supporting feet abut against the upper surface of the heating plate.

4. A freeze dryer according to claim 3, characterized in that: The length of the supporting feet is adjustable.

5. A freeze dryer according to claim 1, characterized in that: The container rack is also provided with a fixing member, which is arranged at the bottom end of the container rack and located on one side of the receiving hole. The receiving holes are arranged in sequence, and the fixing member includes: A plurality of swing rods, the swing rods are rotatably arranged below the container rack and located on one side of the receiving hole; A connecting rod, the connecting rod being translationally movably disposed below the container rack, the connecting rod being hinged to one end of the plurality of swing rods along a length direction, and the other end of the swing rod being capable of swinging below the receiving hole; and A shifting rod, wherein the shifting rod is movably arranged in the container frame, the lower end of the shifting rod is connected to one end of the connecting rod through an elastic member, and the shifting rod drives the connecting rod to translate through the elastic member.

6. A freeze dryer according to claim 5, characterized in that: A rubber sleeve is provided on one side of the swing rod at one end below the accommodating hole, and the rubber sleeve has an arc-shaped groove.

7. A freeze dryer according to claim 5, characterized in that: The container rack is provided with a limiting groove, the limiting groove comprises a waist-shaped groove and a clamping groove, the clamping groove is located at one end of the waist-shaped groove and connected to the waist-shaped groove, and the shifting rod is passed through the limiting groove.

8. A freeze dryer according to claim 1, characterized in that: A top-butting plate is disposed on one side of the rack. The top-butting plate is vertically disposed on an end surface of one side of the rack. One end of the container rack can be abutted against the top-butting plate.

9. A freeze dryer according to claim 1, characterized in that: It also includes a protection bin, which is arranged on the outer peripheral side of the body and has a bin door.

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