CN217929434U

CN217929434U - Freeze dryer for experiments

Info

Publication number: CN217929434U
Application number: CN202221957512.3U
Authority: CN
Inventors: 叶明辉; 杨开瑞
Original assignee: Bo Yikang Beijing Instrument Co ltd
Current assignee: Bo Yikang Beijing Instrument Co ltd
Priority date: 2022-07-28
Filing date: 2022-07-28
Publication date: 2022-11-29
Anticipated expiration: 2032-07-28

Abstract

The utility model belongs to the technical field of freeze drying equipment, especially, relate to a freeze dryer for experiments, including freeze dryer body and external mechanism, including refrigeration circuit and putting the thing box in the freeze dryer body, it includes shelf assembly and regulation to put the thing box elevating system of height between shelf assembly, external mechanism locates freeze dryer body outside and with it is linked together to put the thing box. The utility model discloses profitable technological effect does: adjust the width between shelf subassembly through elevating system, make things convenient for the direct card of bottle plug of placing on the shelf subassembly to go into in the bottleneck, for the high vacuum environment in this kind of bottle, also realized the high vacuum when providing the material freeze-drying and preserve, prevent that freeze-drying material from receiving the erosion of oxygen and steam in the air.

Description

Freeze dryer for experiments

Technical Field

The utility model belongs to the technical field of freeze drying equipment, especially, relate to a freeze dryer for experiments.

Background

Freeze drying is a technology for drying by utilizing the principle of vacuum sublimation, and is a process of quickly freezing a dried substance at a low temperature and then directly sublimating frozen water molecules into water vapor to escape in a proper vacuum environment.

Through search, the Chinese utility model patent with the application number of 202120244370.5 discloses a freeze dryer with an external hanging device, which comprises a freeze drying bin, an equipment bin and the external hanging device which are arranged integrally; a first refrigeration circuit and a second refrigeration circuit are arranged in the freeze-drying bin and the equipment bin, and the refrigeration temperature of the second refrigeration circuit is lower than that of the first refrigeration circuit; a cold trap and a plurality of shelves are arranged in the freeze-drying bin, and each shelf consists of an upper heating layer, a middle copper coil and a lower bottom plate; the external hanging device is arranged outside the freeze-drying bin and is communicated with the freeze-drying bin; the freeze-drying bin is provided with a vacuum valve and an air valve. In the actual use process, however, the experimenter directly contacts with the sample, and the risk of sample pollution is extremely high; and after the material freeze vacuum drying, the laboratory staff still need open the equipment storehouse and take out the closing cap after the material and preserve, and the material can contact with vapor or oxygen in the air like this, is unfavorable for the save of freeze-dried back material.

SUMMERY OF THE UTILITY MODEL

The utility model provides a freeze dryer for experiments to solve the problem of proposing among the above-mentioned background art.

The utility model provides a technical problem adopt following technical scheme to realize:

a freeze dryer for experiments comprises a freeze dryer body and an externally-hanging mechanism, wherein a refrigeration loop and a storage box body are arranged in the freeze dryer body, the refrigeration loop is communicated with the storage box body through a refrigeration pipeline, the storage box body comprises shelf components and a lifting mechanism for adjusting the height between the shelf components, and the externally-hanging mechanism is arranged on the outer side of the freeze dryer body and is communicated with the storage box body;

the shelf assembly sequentially comprises a first shelf, a second shelf and a third shelf from top to bottom, two groups of sliding plates are fixedly arranged on one inner wall of the storage box in a relatively parallel mode, sliding rails are arranged on the sliding plates, the sliding rails are horizontally arranged on the middle upper portions of the sliding plates, two ends of the third shelf are respectively fixedly connected with the lower portions of the two groups of sliding plates, two ends of the first shelf and two ends of the second shelf are connected with the two groups of sliding rails in a sliding mode through sliding parts, and a water catcher is arranged on the lower portion of the third shelf;

the lifting mechanism comprises a handle, a connecting rod, a rotary lead screw and a limiting sleeve, the handle is positioned on the outer side of the top of the object placing box body, one end of the connecting rod is fixedly connected with the handle, the other end of the connecting rod vertically penetrates through the top of the object placing box body and then is fixedly connected with one end of the rotary lead screw, the limiting sleeve is arranged at the top of the object placing box body in a penetrating mode, threads in the limiting sleeve are matched with the rotary lead screw, and one end, far away from the connecting rod, of the rotary lead screw penetrates through the limiting sleeve and then is rotationally clamped with the first shelf;

the lifting mechanism further comprises a stabilizer bar, the stabilizer bar comprises an upper stabilizer bar and a lower stabilizer bar, the lower stabilizer bar is arranged between the second shelf and the third shelf, the lower end of the lower stabilizer bar is fixedly connected with the side wall of the third shelf, and the upper end of the lower stabilizer bar is connected with the side wall of the second shelf in a sliding manner; the upper stabilizing rod is arranged between the first shelf and the second shelf, the lower end of the upper stabilizing rod is fixedly connected with the side wall of the second shelf, and the upper end of the upper stabilizing rod is connected with the side wall of the first shelf in a sliding manner;

the external hanging mechanism comprises an external drying rack, external drying pipes and external hanging bottles, the external hanging mechanism is provided with a plurality of groups, the external drying pipes are fixedly arranged on the external drying rack, the external hanging bottles are detachably connected with the external drying pipes, and the external hanging bottles are communicated with the storage box body after penetrating through the freeze dryer body through the external drying pipes;

the refrigeration loop is arranged at the lower part of the freeze dryer body and comprises a compressor, a condenser, a capillary tube and a water catcher which are sequentially communicated;

the width of the object placing box body is the same as that of the freeze dryer body, the freeze dryer body is provided with an object placing door capable of opening the object placing box body, the object placing box body on one side of the object placing door is provided with a first interface capable of being externally connected with a vacuum pump, the object placing box body on the other side of the object placing door is provided with a second interface capable of draining water and exhausting air, and the second interface is provided with a pluggable sealing element;

still include control system, control system includes controller and control panel, and control panel locates one side of freeze dryer body, the controller is located the inside of freeze dryer body links to each other with refrigerating circuit.

The beneficial effects of the utility model are that:

(1) The relative height among the shelf components is adjusted through the lifting mechanism, so that a bottle stopper placed on the shelf components can be conveniently and directly clamped into a bottle mouth, the bottle is in a high-vacuum environment, freeze-drying of materials is realized, high-vacuum storage is realized, and freeze-dried materials are prevented from being corroded by oxygen and water vapor in the air;

(2) The freeze dryer in the application can be internally provided with a storage bottle and is suitable for treating medicines needing to be dried and frozen; and the hanging bottle can be placed, so that the medicine which only needs to be dried but does not need to be frozen is treated, the use efficiency of the freeze dryer is improved, and the freeze dryer is more efficient and convenient to use in experiments.

Drawings

FIG. 1 is a schematic view of the present invention;

fig. 2 is a side view of the present invention;

FIG. 3 is a schematic view of the internal structure of the present invention;

fig. 4 is a schematic structural view of the lifting mechanism of the present invention;

fig. 5 is a schematic structural view of the diversion assembly of the present invention;

1-a freeze dryer body, 2-a storage box body, 21-a sliding plate, 22-a sliding rail, 23-a storage door, 24-a first interface, 25-a second interface, 26-a pipeline, 31-a first shelf, 32-a second shelf, 33-a third shelf, 41-a handle, 42-a connecting rod, 43-a rotating screw rod, 44-a limiting sleeve, 45-a stabilizing rod, 46-an upper stabilizing rod, 47-a lower stabilizing rod, 51-an external drying rack, 52-an external drying pipe, 53-an external bottle, 61-a compressor, 63-a water catcher, 71-a controller, 72-a control panel, 81-a guide plate, 82-a guide rod and 83-a guide pipeline.

Detailed Description

As shown in fig. 1-5, an experimental freeze dryer comprises a freeze dryer body 1, an external hanging mechanism and a control system, wherein the freeze dryer body 1 comprises a refrigeration loop and a storage box body 2, the storage box body 2 comprises a shelf assembly and a lifting mechanism for adjusting the height between the shelf assemblies, and the external hanging mechanism is arranged outside the freeze dryer body 1 and communicated with the storage box body 2; it should be noted that the storage box 2 is embedded in the front of the main body 1 of the freeze dryer, and the width of the storage box 2 is equal to the width of the main body 1 of the freeze dryer. The shelf assembly is used for placing common storage bottles with rubber plugs on the market, such as common experimental penicillin bottles; hold the experimental material that needs freeze-drying in putting the thing bottle, in order to guarantee the freeze-drying effect of the realization ideal of experimental material, put the thing bottle when placing, need hide the bottle lid on the bottleneck, incompletely fill in the bottle.

As shown in fig. 3-4, the shelf assembly comprises a first shelf 31, a second shelf 32 and a third shelf 33 in sequence from top to bottom, two sets of sliding plates 21 are fixedly arranged on an inner wall of the storage box body 2 in a relatively parallel manner, sliding rails 22 are arranged on the sliding plates 4, the sliding rails are arranged along the length direction of the sliding plates, the sliding rails 41 are horizontally arranged on the middle upper portion of the sliding plates 4, two ends of the third shelf 33 are respectively fixedly connected with the lower portions of the two sets of sliding plates 4, two ends of the first shelf 31 and the second shelf 32 are both connected with the two sets of sliding rails 41 in a sliding manner through sliding parts, a water catcher 63 is arranged on the lower portion of the third shelf 33, and the water catcher 63 is arranged on the freeze dryer body 1 between the storage unit and the freeze dryer body 1; it should be pointed out here that the shelf in built-in drying is composed of a heating layer, a copper coil and a bottom plate at the lower part, and the heating layer in the shelf can directly sublimate the medicine placed on the shelf to process the medicine to be dried and frozen, so that the shelf has a multi-purpose function; compared with the prior art, the water catcher 63 has larger volume and stronger water catching efficiency.

Elevating system includes handle 41, connecting rod 42, rotate lead screw 43 and stop collar 44, handle 41 is located the 2 top outsides of thing box, the one end and the handle 41 of connecting rod 42 are fixed continuous, the other end of connecting rod 42 passes perpendicularly behind the top of thing box 2 and links to each other with the one end fixed phase that rotates lead screw 43, stop collar 44 runs through and locates the top of putting thing box 2, screw thread and rotation lead screw 43 phase-match in the stop collar 44, the one end that the connecting rod was kept away from to rotation lead screw 43 passes behind the stop collar 44 and rotates the joint with first shelf 31.

Preferably, the adjusting mechanism further comprises a stabilizer bar 45, the stabilizer bar 45 comprises an upper stabilizer bar 46 and a lower stabilizer bar 47, the lower stabilizer bar 47 is arranged between the second shelf 32 and the third shelf 33, the lower end of the lower stabilizer bar 47 is fixedly connected with the side wall of the third shelf 33, and the upper end of the lower stabilizer bar 47 is slidably connected with the side wall of the second shelf 32; the upper stabilizer bar 46 is disposed between the first shelf 31 and the second shelf 32, a lower end of the upper stabilizer bar 46 is fixedly connected to a sidewall of the second shelf 32, and an upper end of the upper stabilizer bar 46 is slidably connected to a sidewall of the first shelf 31. The second shelf 32 can be stably moved up and down by providing the lower stabilizer bar 47, and the second shelf 32 can be moved up and down in synchronization with the first shelf 31 by providing the upper stabilizer bar 46.

After the freeze dryer performs vacuum drying, the handle 41 is rotated to drive the connecting rod 42 and the rotating screw rod 43 to rotate, and the upper end and the lower end of the upper stabilizing rod 46 are respectively connected with the first shelf 31 and the second shelf 32, so as to drive the first shelf 31 and the second shelf 32 to move up and down along the direction of the slide rail 22, when the bottom of the second shelf 32 touches a bottle stopper of a storage bottle placed on the third shelf 33, the bottle stopper is changed from a state of being virtually covered on the bottle opening into a state of completely plugging the bottle opening due to the pressure of the third shelf 33, and the storage bottle on the third shelf 33 is kept in a vacuum state; the bottom of the second shelf 32 keeps the second shelf 32 still due to the supporting force of the bottle stopper on the third shelf 33 to the second shelf 32, at this time, the handle 41 continues to be rotated, the first shelf 31 continues to move downwards, when the bottom of the first shelf 31 contacts the bottle stopper of the storage bottle placed on the second shelf 32, the bottle stopper is changed from a state of being virtually covered on the bottle opening into a state of completely blocking the bottle opening due to the pressure of the first shelf 31, and the interior of the storage bottle on the second shelf 32 keeps a vacuum state.

As shown in fig. 1, the external hanging mechanism includes an external drying rack 51, an external drying tube 52 and an external hanging bottle 53, the external hanging mechanism is provided with a plurality of groups, the groups are uniformly distributed along two sides of the freeze dryer body 1, the external drying tube 52 is fixedly arranged on the external drying rack 51, the external hanging bottle 53 is detachably connected with the external drying tube 52, the external drying tube 52 is communicated with the storage box body 2 after passing through the freeze dryer body 1, the external hanging bottle 53 is communicated with the storage box body 1, so that vacuum drying of the medicines in the external hanging bottle 53 is ensured, and the external hanging mechanism only needs drying and does not need to process the frozen medicines.

The lower part of freeze dryer body 1 is located to the refrigeration circuit, including compressor 61, condenser 62, capillary and the ware 63 of catching water that communicates in proper order, and the refrigeration circuit provides low temperature environment for putting thing box 2, carries out freeze dryer's prefreezing procedure.

As shown in fig. 1-2, the width of the storage box 2 is the same as the width of the freeze dryer body 1, the storage door 21 capable of opening the storage box 2 is arranged on the freeze dryer body 1, the first interface 21 capable of being connected with an external vacuum pump is arranged on the freeze dryer body 1 on one side of the storage door 2, the second interface 22 capable of draining and exhausting water is arranged on the freeze dryer body 1 on the other side of the storage door, and the second interface 25 is provided with a pluggable sealing element. The first connector 21 and the second connector 22 are respectively communicated with the storage box body 2 after passing through the freeze dryer body 1 through pipelines; through first interface 21 can provide the state in vacuum for putting thing box 2 and external bottle 53 behind the external vacuum pump, be equipped with the sealing member of plugging up second interface 25 on the second interface 25, be in the state of normally closed under prefreezing and vacuum state, for providing vacuum environment in putting thing box 2, when opening the sealing member in the second interface 22, the inside and outside pressure of freeze dryer body 1 is the same, conveniently opens and puts thing door 21.

Preferably, as shown in fig. 3 and 5, a pipeline 26 is disposed in the storage box 2, one end of the pipeline 26 is communicated with the storage box 2, the other end of the pipeline 26 penetrates out of the freeze dryer body 1 and is respectively communicated with the first port 24 and the vacuum pump, and a flow guide assembly is sleeved in the pipeline 26.

The guide assembly comprises a guide plate 81, a guide rod 82 and a guide pipeline 83, the guide pipeline 83 is sleeved at the end part of one end of the pipeline 26 communicated with the storage box body 2, the guide rod 82 is provided with a plurality of groups, one end of the guide rod 82 is fixedly connected with the guide pipeline 83, the other end of the guide rod 82 is fixedly connected with the guide plate 81, and the guide rod 82 and the guide pipeline 83 are both positioned outside the pipeline 26; when the vacuum pumping is carried out, the air in the storage box body 2 enters the pipeline 26 through the flow guide assembly and is pumped away by the vacuum pump, and the flow guide assembly has the flow guide function and changes the flowing direction of the air, so that the air in the storage box body 2 is fully contacted with the water catcher when being pumped out, and the working efficiency of the water catcher is improved.

Preferably, the control system comprises a controller 71 and a control panel 72, wherein the control panel 72 is arranged on one side of the freeze dryer body 1 and is a common control panel with a rotating function in the market; the controller 71 is disposed inside the freeze dryer body 1 and connected to the refrigeration circuit.

The working principle is as follows: firstly, the medicines to be frozen and dried are respectively put into the storage bottle and the external hanging bottle, and the external hanging bottle is detachably arranged on the external drying rack 51, so that the external hanging bottle is suitable for treating the medicines which only need to be dried but do not need to be frozen; the storage bottle is used for treating medicines to be dried and frozen, the bottle stopper of the storage bottle is hidden at the bottle opening end, the storage bottle is placed on a second shelf 32 and a third shelf 33 on the shelf component as required, and the storage door 21 is closed; the refrigeration circuit is opened through the control panel 72, and the pre-freezing program is executed on the object box body 2; after the pre-freezing procedure is finished, the vacuum pump is connected with the first interface 21, and the vacuum pump is started to pump vacuum to the article box body and the externally hung bottle 53 on the externally hung mechanism for drying; after the drying is finished, the handle 41 is rotated to drive the connecting rod 42 and the rotating screw rod 43 to rotate, and the upper end and the lower end of the upper stabilizing rod 46 are respectively connected with the first shelf 31 and the second shelf 32, so that the first shelf 31 and the second shelf 32 are driven to move up and down along the direction of the slide rail 22, when the bottom of the second shelf 32 touches a bottle stopper of a storage bottle placed on the third shelf 33, the bottle stopper is changed from a state of being virtually covered on the bottle opening into a state of completely plugging the bottle opening due to the pressure of the third shelf 33, and the storage bottle on the third shelf 33 is kept in a vacuum state; the bottom of the second shelf 32 keeps the second shelf 32 still due to the supporting force of the bottle stopper on the third shelf 33 to the second shelf 32, at this time, the handle 41 is continuously rotated, the first shelf 31 continuously moves downwards, when the bottom of the first shelf 31 touches the bottle stopper of the storage bottle placed on the second shelf 32, the bottle stopper is changed from a state of being virtually covered on the bottle opening to a state of completely plugging the bottle opening due to the pressure of the first shelf 31, and the vacuum state is kept in the storage bottle on the second shelf 32. After the drying is finished, the vacuum pump is closed, the sealing piece in the second interface is pulled out, and the object placing bottle is conveniently taken out from the object placing door 21. The high vacuum environment is provided in the bottle, so that the high vacuum storage is realized while the freeze-drying of the material is provided, and the freeze-drying material is prevented from being corroded by oxygen and water vapor in the air.

The above detailed description is only for the preferred embodiment of the present invention, and the content is not considered to limit the scope of the present invention, and all the changes and improvements made in accordance with the scope of the present invention should still belong to the scope of the present invention.

Claims

1. The utility model provides a freeze dryer for experiments, includes freeze dryer body (1) and joins externally the mechanism, its characterized in that: the freeze dryer comprises a freeze dryer body (1) and a storage box body (2), wherein the freeze dryer body comprises a refrigeration circuit and the storage box body (2), the refrigeration circuit is communicated with the storage box body (2) through a pipeline (26), the storage box body (2) comprises a shelf component and a lifting mechanism for adjusting the height between the shelf components, and an externally-hanging mechanism is arranged on the outer side of the freeze dryer body (1) and communicated with the storage box body (2).

2. The experimental lyophilizer according to claim 1, characterized in that: shelf subassembly includes first shelf (31), second shelf (32) and third shelf (33) from top to bottom in proper order, it is equipped with two sets of slide (21) to put relatively parallel fixed on the inner wall of thing box (2), be equipped with slide rail (22) on slide (21), slide rail (22) level sets up the well upper portion of slide (21), the both ends of third shelf (33) respectively with two sets of the lower part of slide (21) is fixed continuous, first shelf (31) with the both ends of second shelf (32) all pass through slider and two sets of slide rail (22) slide continuously, the lower part of third shelf (33) is equipped with catches hydrophone (63), it is in to put thing box (2) embedded setting in freeze dryer body (1).

3. The experimental lyophilizer of claim 2, characterized in that: elevating system includes handle (41), connecting rod (42), rotates lead screw (43) and stop collar (44), handle (41) are located put thing box (2) top outside, the one end of connecting rod (42) with handle (41) are fixed to be linked to each other, the other end of connecting rod (42) passes perpendicularly put behind the top of thing box (2) with the one end stationary phase that rotates lead screw (43) links to each other, stop collar (44) run through locate put the top of thing box (2), screw thread in stop collar (44) with rotate lead screw (43) phase-match, the one end that the connecting rod was kept away from in rotation lead screw (43) is passed behind stop collar (44) with first shelf (31) rotate the joint.

4. An experimental lyophilizer according to claim 3, characterized in that: the lifting mechanism further comprises a stabilizer bar (45), the stabilizer bar (45) comprises an upper stabilizer bar (46) and a lower stabilizer bar (47), the lower stabilizer bar (47) is arranged between the second shelf (32) and the third shelf (33), the lower end of the lower stabilizer bar (47) is fixedly connected with the side wall of the third shelf (33), and the upper end of the lower stabilizer bar (47) is connected with the side wall of the second shelf (32) in a sliding manner; the upper stabilizing rod (46) is arranged between the first shelf (31) and the second shelf (32), the lower end of the upper stabilizing rod (46) is fixedly connected with the side wall of the second shelf (32), and the upper end of the upper stabilizing rod (46) is connected with the side wall of the first shelf (31) in a sliding mode.

5. The experimental lyophilizer according to claim 1, characterized in that: the external hanging mechanism comprises an external drying rack (51), external drying pipes (52) and an external hanging bottle (53), wherein a plurality of groups of external hanging mechanisms are arranged, the external drying pipes (52) are fixedly arranged on the external drying rack (51), the external hanging bottle (53) is detachably connected with the external drying pipes (52), and the external drying pipes (52) are communicated with the storage box body (2) after penetrating through the freeze dryer body (1).

6. The experimental lyophilizer according to claim 1, characterized in that: the refrigeration loop is arranged at the lower part of the freeze dryer body (1) and comprises a compressor (61), a condenser (62), a capillary tube and a water catcher (63) which are sequentially communicated.

7. An experimental lyophilizer according to claim 2, characterized in that: the width of putting thing box (2) is the same with the width of freeze dryer body (1), be equipped with on freeze dryer body (1) and open putting thing door (23) of putting thing box (2), be equipped with first interface (24) that can external vacuum pump on the freeze dryer body (1) of putting thing door one side, be equipped with exhaust second interface (25) of can draining on the freeze dryer body (1) of putting thing door opposite side, be equipped with pluggable sealing member on second interface (25).

8. The experimental lyophilizer of claim 7, characterized in that: be equipped with a pipeline (26) in putting thing box (2), the one end of pipeline (26) with put thing box (2) and be linked together, the other end of pipeline (26) wear out behind freeze dryer body (1) respectively with first interface (24) with the vacuum pump is linked together, pipeline (26) endotheca is equipped with a water conservancy diversion subassembly.

9. The experimental lyophilizer of claim 8, characterized in that: the water conservancy diversion subassembly includes guide plate (81), water conservancy diversion pole (82) and water conservancy diversion pipeline (83), water conservancy diversion pipeline (83) cover is established pipeline (26) with put the tip that thing box (2) is linked together one end, water conservancy diversion pole (82) are equipped with a plurality of groups, the one end of water conservancy diversion pole (82) with water conservancy diversion pipeline (83) are fixed to be linked to each other, the other end of water conservancy diversion pole (82) with guide plate (81) are fixed to be linked to each other, water conservancy diversion pole (82) with water conservancy diversion pipeline (83) all are located pipeline (26) are outside.

10. The experimental lyophilizer of claim 1, characterized in that: still include control system, control system includes controller (71) and control panel (72), and control panel (72) are located one side of freeze dryer body (1), and controller (71) are located the inside of freeze dryer body (1) links to each other with refrigerating circuit.