Freeze dryer cleaning device

Abstract

The utility model discloses a freeze dryer cleaning device, and relates to the technical field of semi-finished product production, the freeze dryer cleaning device comprises a suction rod, the suction rod is connected by adopting a plurality of sections of detachable structures, a suction head communicated with the suction rod is arranged at the end part of one section of the suction rod, a suction inlet and a vacuum pump are arranged on the suction head, the vacuum pump is communicated with the suction rod, and the suction rod is connected with the vacuum pump. The vacuum pump is arranged in the suction rod and used for keeping negative pressure in the suction rod, the filter assembly is located between the vacuum pump and the suction rod and communicated with the vacuum pump and the suction rod, the length of the suction rod of a multi-section structure can be conveniently adjusted according to different positions, sterilization is easier after the suction rod is detached, and glass chippings and medicine powder can be completely cleaned through strong negative pressure. And the next batch of products are prevented from being polluted.

Description

Technical Field

[0001] This utility model relates to the field of semi-finished product production technology, and more specifically, to a cleaning device for a freeze dryer. Background Technology

[0002] A freeze dryer, also known as a freeze dryer, is a device that uses the principle of vacuum freeze drying to dehydrate materials. The working principle of a freeze dryer is based on the three-phase change characteristics of water. Through a low-temperature and low-pressure environment, the water in the material is directly sublimated from a solid state to a gaseous state, thereby achieving the purpose of drying.

[0003] Sometimes, during the freeze-drying of semi-finished products, bottles may burst or fall to the bottom of the freeze dryer. If the glass shards generated from the bursting bottles are not cleaned up properly after the material is discharged, they will enter the unsealed semi-finished products during the vacuuming process of the next batch, resulting in a decline in the quality of the semi-finished products or even making production impossible. The current cleaning method is to use a stainless steel rake, which cannot remove fine glass shards and powders, especially since there are grooves or rubber strips on the bottom of the freeze dryer or on the freeze dryer trays, making it difficult to achieve an effective cleaning result with a rake.

[0004] In summary, how to provide an effective device for cleaning debris inside a freeze dryer is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0005] In view of this, the purpose of this utility model is to provide a freeze dryer cleaning device that can quickly and effectively clean debris and powder inside the freeze dryer.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A freeze dryer cleaning device, comprising:

[0008] The suction rod is composed of multiple segments connected by a detachable structure. One end of one segment of the suction rod is equipped with a suction head that communicates with the suction rod, and the suction head is provided with a suction port.

[0009] A vacuum pump, which is connected to the suction rod and is used to maintain a negative pressure inside the suction rod;

[0010] A filter assembly is located between the vacuum pump and the suction rod, and is connected to both the vacuum pump and the suction rod.

[0011] Furthermore, in this invention, the multiple suction rod segments are connected by threaded disassembly.

[0012] Alternatively, the multiple suction rods can be connected and disassembled via snap-fit ​​fasteners.

[0013] Furthermore, the filter assembly of this invention includes:

[0014] A filter canister is provided with a filter bag inside. The filter canister has an inlet and an outlet. The vacuum pump and the suction rod are respectively connected to the outlet and the inlet.

[0015] Furthermore, the present invention provides a cavity inside the filter tank, and the filter bag is detachably installed inside the cavity.

[0016] Furthermore, the filter assembly further includes:

[0017] A filter, which contains a sterilization filter element, is located between the vacuum pump and the filter tank.

[0018] Furthermore, the sterilization filter element of this invention uses 0.22-micron polytetrafluoroethylene as the filter element.

[0019] Furthermore, in this invention, the filter canister and the suction rod are connected by a vacuum hose, and the vacuum hose is made of a sterilizable material.

[0020] Furthermore, the vacuum pump described in this invention is a water ring vacuum pump.

[0021] Furthermore, the suction head is provided with two protrusions, which make the bottom surface of the suction head have a concave structure.

[0022] Furthermore, the two protrusions are detachably mounted on the suction head, and the distance between the two protrusions is adjustable.

[0023] The freeze dryer cleaning device provided by this utility model involves assembling a multi-segment suction rod and connecting a vacuum pump to the suction rod. A filter assembly is located between the vacuum pump and the suction rod, and is connected to both the vacuum pump and the suction rod. One end of each segment of the suction rod is fitted with a suction head that is connected to the suction rod. In other words, the suction head is inserted into the freeze dryer, aligned with the area to be cleaned, and the vacuum pump is activated to maintain negative pressure inside the suction rod. This allows for the extraction of debris from inside the freeze dryer, which is then filtered by the filter assembly to prevent damage to the vacuum pump. The multi-segment suction rod allows for easy length adjustment according to different locations, and it is also easier to sterilize after disassembly, preventing contamination of the freeze dryer's internal environment. The device has a simple structure, is easy to install, and the strong negative pressure can completely clean glass shards and pharmaceutical powder, preventing contamination of subsequent batches of products. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the overall structure of the device provided by this utility model.

[0026] Figure 1 In the accompanying drawings, the reference numerals include:

[0027] 1. Suction rod; 2. Suction head; 201. Suction inlet; 3. Vacuum pump; 4. Filter assembly; 401. Filter; 402. Filter canister; 403. Filter bag; 5. Vacuum hose; 6. Protrusion. Detailed Implementation

[0028] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] The core of this invention is to provide a freeze dryer cleaning device that can quickly and effectively clean debris and powder inside the freeze dryer.

[0030] Please refer to Figure 1 A cleaning device for a freeze dryer includes a suction rod 1, a vacuum pump 3, and a filter assembly 4. The suction rod 1 is connected in a multi-segment, detachable structure. One end of one segment of the suction rod 1 is equipped with a suction head 2 that communicates with the suction rod 1. The vacuum pump 3 is connected to the suction rod 1 and is used to maintain negative pressure inside the suction rod 1. The filter assembly 4 is located between the vacuum pump 3 and the suction rod 1 and is connected to both the vacuum pump 3 and the suction rod 1.

[0031] It should be noted that in this embodiment of the invention, both the suction rod 1 and the suction head 2 are made of sterilizable materials, and the sterilization methods include high-temperature sterilization or spray sterilization.

[0032] In addition, in this embodiment of the invention, the suction rod 1 and the suction head 2 are detachably connected, for example by threads or snaps, or are fixedly connected, for example by integral molding.

[0033] In use, the multi-segment suction rod 1 is assembled, and the vacuum pump 3 is connected to the suction rod 1. The filter assembly 4 is located between the vacuum pump 3 and the suction rod 1, and is connected to both the vacuum pump 3 and the suction rod 1. One end of the multi-segment suction rod 1 is equipped with a suction head 2 connected to the suction rod 1. That is, the suction head 2 is inserted into the freeze dryer, aligned with the area to be cleaned, and the vacuum pump 3 is started to maintain negative pressure inside the suction rod 1. This allows for the suction of debris inside the freeze dryer, which is then filtered by the filter assembly 4 to prevent damage to the vacuum pump 3. The multi-segment suction rod 1 allows for easy length adjustment according to different positions, and it is also easier to sterilize after disassembly without contaminating the internal environment of the freeze dryer. The device has a simple structure, is easy to install, and the strong negative pressure can completely clean glass shards and powder, preventing contamination of subsequent batches of products.

[0034] Please refer to Figure 1 In order to facilitate the insertion of the suction rod 1 into the freeze dryer, in some embodiments, the multiple suction rods 1 are connected by threads for disassembly. That is, the suction rods 1 can be disassembled by screwing the threads, and the threads have a high sealing performance when screwed.

[0035] In other embodiments, the multiple suction rods 1 are connected and disassembled by snap-fit ​​fasteners. That is, quick disassembly and reassembly of the suction rods 1 are achieved by snap-fit ​​fasteners, such as U-shaped fasteners, twisting fasteners, and push-motion fasteners.

[0036] In the above embodiments, in order to improve the sealing of the connection between the suction rods 1, in some embodiments, a sealing gasket is provided at the end where the suction rods 1 are connected to increase its sealing effect.

[0037] Please refer to Figure 1 In some embodiments, the filter assembly 4 includes a filter canister 402, a filter bag 403 is provided inside the filter canister 402, and the filter canister 402 is provided with an inlet and an outlet. The vacuum pump 3 and the suction rod 1 are respectively connected to the outlet and the inlet. That is to say, the powder and other impurities sucked in are filtered through the filter canister 402 to prevent impurities from entering the vacuum pump 3, which helps to increase the service life of the vacuum pump 3.

[0038] In some embodiments, the filter tank 402 is provided with a filter plate inside, and filter cotton is installed on the filter plate to filter impurities such as powder and debris.

[0039] Optionally, in the above embodiments, the filter cotton is detachably installed on the filter plate. Specifically, Velcro is installed at corresponding positions on the filter plate and the filter cotton, so that the filter cotton can be quickly removed through Velcro, making it convenient to replace or clean the filter cotton.

[0040] Please continue to refer to this. Figure 1In other embodiments, the filter canister 402 has a cavity, and the filter bag 403 is detachably installed in the cavity, that is, the powder and debris are filtered through the filter bag 403.

[0041] In some embodiments, the filter bag 403 is positioned with its opening facing upwards to prevent the filtered dust and debris from falling out when the filter bag 403 is removed.

[0042] Please continue to refer to this. Figure 1 To prevent external air from entering the freeze dryer during the cleaning process and causing contamination, in some embodiments, the filter assembly 4 also includes a filter 401. The filter 401 contains a sterilization filter element and is located between the vacuum pump 3 and the filter tank 402. In other words, by setting the filter 401 to filter and sterilize the air entering through the vacuum pump, it is beneficial to prevent external air from entering the freeze dryer and causing contamination after the vacuum pump 3 stops.

[0043] Optionally, in some embodiments, the sterilization filter element uses 0.22-micron polytetrafluoroethylene as the filter element.

[0044] Optionally, in some embodiments, the filter canister 402 is connected to the suction rod 1 via a vacuum hose 5, which is made of a sterilizable material.

[0045] Optionally, in some embodiments, the vacuum pump 3 is a water ring vacuum pump 3.

[0046] The water ring vacuum pump 3 is a rough vacuum pump 3. Its working principle is to use the impeller in the pump body, which contains a certain amount of water as working fluid, to rotate and throw the water to form a closed ring of approximately equal thickness. This ring, together with the impeller, forms a periodically changing rotating variable volume space, realizing the process of air intake, compression and exhaust.

[0047] Please continue to refer to this. Figure 1 The suction head 2 is provided with two protrusions 6, which make the bottom surface of the suction head 2 concave. The protrusions 6 can make a certain gap between the suction head 2 and the bottom of the freeze dryer, avoiding direct contact between the suction head 2 and the bottom. The wear of the suction head 2 can be adapted to the concave and convex structure of the bottom of the freeze dryer.

[0048] Optionally, in some embodiments, the protrusion 6 is made of rubber or silicone to avoid friction with the bottom and the generation of new debris, and to avoid wear on the bottom of the freeze dryer.

[0049] Optionally, in some embodiments, the protrusion 6 is detachably mounted on the suction head 2. Through the detachable mounting structure, protrusions 6 of different thicknesses can be selected according to different adaptation conditions, thereby adapting to different models of freeze dryers.

[0050] Optionally, in the above embodiments, the protrusion 6 can be installed on the suction head 2 by means of bolts for detachable fixing.

[0051] Optionally, in some embodiments, the spacing between the two protrusions 6 is adjustable. By adjusting the spacing between the protrusions 6, it is possible to adapt to more models of freeze dryers and meet the requirements for cleaning the bottom of freeze dryers with different uneven gaps.

[0052] Optionally, in the above embodiment, a magnet is installed on the suction head 2, and an iron plate is installed at the contact position between the protrusion 6 and the suction head 2. By adsorbing the iron plate and the magnet, when it is necessary to adjust the distance between the protrusions 6, it is only necessary to move the contact position between the iron plate and the magnet, which is convenient and quick.

[0053] In other words, the key point of this utility model embodiment is that: the suction head 2 extends into the freeze dryer, is aligned with the area to be cleaned, and the vacuum pump 3 is activated to maintain negative pressure inside the suction rod 1, thereby sucking up debris inside the freeze dryer and filtering the debris through the filter assembly 4 to avoid damage to the vacuum pump 3. The multi-segment suction rod 1 allows for easy length adjustment according to different positions, and it is also easier to sterilize after disassembly without contaminating the internal environment of the freeze dryer. The device has a simple structure, is easy to install, and the strong negative pressure can completely clean up glass shards and powder, preventing contamination of the next batch of products.

[0054] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0055] The above provides a detailed description of a freeze dryer cleaning device provided by this utility model. Specific examples have been used to illustrate the principle and implementation of this utility model. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core idea of ​​this utility model. It should be noted that those skilled in the art can make several improvements and modifications to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A cleaning device for a freeze dryer, characterized in that, include: The suction rod (1) is connected by a multi-segment and detachable structure. One end of one segment of the suction rod (1) is equipped with a suction head (2) that communicates with the suction rod (1). The suction head (2) is provided with a suction port (201). A vacuum pump (3) is connected to the suction rod (1) and is used to maintain a negative pressure inside the suction rod (1); The filter assembly (4) is located between the vacuum pump (3) and the suction rod (1), and is connected to the vacuum pump (3) and the suction rod (1) respectively.

2. The freeze dryer cleaning device according to claim 1, characterized in that, The multiple suction rods (1) are connected by threads for disassembly; Alternatively, the multiple suction rods (1) can be connected and disassembled by snap-fit.

3. The freeze dryer cleaning device according to claim 1, characterized in that, The filtering component (4) includes: The filter tank (402) is provided with a filter bag (403) inside. The filter tank (402) is provided with an inlet and an outlet. The vacuum pump (3) and the suction rod (1) are respectively connected to the outlet and the inlet.

4. The freeze dryer cleaning device according to claim 3, characterized in that, The filter tank (402) has a cavity, and the filter bag (403) is detachably installed in the cavity.

5. A freeze dryer cleaning device according to claim 4, characterized in that, The filtering component (4) further includes: The filter (401) is equipped with a sterilization filter element and is located between the vacuum pump (3) and the filter tank (402).

6. A freeze dryer cleaning device according to claim 5, characterized in that, The sterilization filter element uses 0.22-micron polytetrafluoroethylene as the filter element.

7. A freeze dryer cleaning device according to claim 6, characterized in that, The filter canister (402) and the suction rod (1) are connected by a vacuum hose (5), which is made of a sterilizable material.

8. A freeze dryer cleaning device according to claim 1, characterized in that, The vacuum pump (3) is a water ring vacuum pump (3).

9. A freeze dryer cleaning device according to any one of claims 1-8, characterized in that, The suction head (2) is provided with two protrusions (6), which make the bottom surface of the suction head (2) concave.

10. A freeze dryer cleaning device according to claim 9, characterized in that, The two protrusions (6) are detachably mounted on the suction head (2), and the spacing between the two protrusions (6) is adjustable.

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