CN218936817U - Domestic freeze drying equipment - Google Patents

Abstract

The utility model discloses household freeze drying equipment, which aims to provide household freeze drying equipment with smaller volume, and comprises a box body, wherein an inner cylinder, a vacuum pump, a cooling system and a heater are detachably connected in the box body, an inlet and a door body which completely covers the inlet are arranged on the outer side wall of the box body, the opening end of the inner cylinder is positioned at the inlet and is in sealing connection with the inlet, the door body is hinged with the box body, a vacuum tube is arranged on the vacuum pump, the vacuum pump is communicated with the inner part of the inner cylinder through the vacuum tube, the cooling system is attached to the outer side wall of the inner cylinder, the heater is connected with the inner side wall of the inner cylinder, a storage rack is detachably arranged in the inner cylinder, a control area and a power interface which is electrically connected with the control area are arranged on the box body, and the vacuum pump, the cooling system and the heater are all electrically connected with the control area. The beneficial effects of the utility model are as follows: the purpose of smaller box body volume is achieved; the cooling efficiency is high; is favorable for heat conduction and improves the uniformity of heating or refrigerating of the object to be treated.

Description

Domestic freeze drying equipment

Technical Field

The utility model relates to the technical field of freeze dryers, in particular to household freeze drying equipment.

Background

Freeze-drying is a method of storing a substance by freezing an aqueous substance into a solid state and sublimating moisture therein from the solid state into a gaseous state to remove the moisture. In the process of compressed air drying, the freeze drying is to reduce the temperature of compressed air to separate out water from the compressed air. The working principle of the freeze dryer is the same as that of a refrigerator, and after compressed air passes through a frozen compressed air pipeline, the temperature of the compressed air is reduced to the required temperature, so that the drying requirement is met.

Chinese patent publication No. CN214950170U, grant bulletin day 2021, 11 months and 30 days, disclose a freeze-dryer of function of freezing in advance, including box, pre-freeze case, freezer and vacuum box, pre-freeze case set up in the centre of box, pre-freeze case and box sliding connection, the freezer set up in the centre of box and be located the lower floor of pre-freeze case, freezer and box sliding connection, the vacuum box set up on the right side of box, vacuum box and box connection, pre-freeze case and freezer all communicate with the vacuum box.

In the freeze dryer disclosed in the above patent, according to different function differentiation, divide into the box inside into the case of freezing in advance, freezer and vacuum box for the material that waits to treat is carried in proper order to corresponding storehouse internal according to the processing sequence and is handled, thereby makes the volume of whole box great, thereby leads to the space that occupies great easily, is particularly unsuitable for the family to use.

Disclosure of Invention

The utility model provides household freeze drying equipment with smaller volume, which aims to overcome the defect of larger volume of a freeze dryer in the prior art.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the utility model provides a domestic freeze drying equipment, it includes the box, be connected with inner tube, vacuum pump, cooling system and heater in the box can dismantle, be equipped with the door body of entry and complete cover entry on the lateral wall of box, the open end of inner tube is located entry department and with entry sealing connection, the door body articulates with the box, be equipped with the vacuum tube on the vacuum pump, the vacuum pump is linked together through the inside of vacuum tube with the inner tube, cooling system laminates with the lateral wall of inner tube, the heater is connected with the inside wall of inner tube, demountable installation has the supporter in the inner tube, be equipped with on the box and control the district and with the power interface who controls the district electricity and be connected, vacuum pump, cooling system and heater all are connected with the district electricity, cooling system includes evaporating pipe, compressor and condenser, the interior flow of evaporating pipe uses the inner tube to be spiral form evenly distributed in the lateral wall of inner tube and laminate mutually with the inner tube as the center, evaporating pipe, compressor and condenser pass through the pipeline and connect gradually and constitute circulation circuit, compressor and compressor all are connected with the compressor and control the district electricity.

The utility model discloses a refrigerator, including box, vacuum pump, cooling system and heater, be equipped with the door body of entry and complete cover entry on the lateral wall of box, the open end of inner tube is located entry department and with entry sealing connection, the door body articulates with the box, be equipped with the vacuum tube on the vacuum pump, the vacuum pump is linked together through the inside of vacuum tube and inner tube, cooling system is laminated mutually with the lateral wall of inner tube, the heater is connected with the inside wall of inner tube, demountable installation has the supporter in the inner tube, be equipped with on the box and control district and the power interface who is connected with the district electricity of controlling, vacuum pump, cooling system and heater all are connected with the district electricity of controlling, cooling system includes evaporating pipe, compressor and condenser, the evaporating pipe flows and has the refrigerant, the evaporating pipe is spiral evenly distributed on the lateral wall of inner tube and is laminated mutually with the inner tube with the center, evaporating pipe, compressor and condenser are connected gradually through the pipeline and are formed the circulation circuit, compressor and condenser all can dismantle with the box and be connected with the district electricity of controlling. In the utility model, before working, a user firstly places an object to be treated on a commodity shelf and closes a door body; the box body is connected with an external circuit through a power interface, a user starts a working mode of the freeze dryer through control of an operation area, a cooling system absorbs heat in the inner barrel to cool an object to be processed, then the inner barrel is vacuumized through a vacuum pump to form a vacuum state in the inner barrel, finally the inner barrel is heated through a heater, and water molecules frozen on the object to be processed are directly sublimated into water vapor under the vacuum state, so that freeze-dried objects are obtained. The evaporating pipe is wound on the inner cylinder wall, so that the refrigerant in the evaporating pipe can absorb heat in the inner cylinder, and the cooling of the object to be treated is facilitated; the refrigerant absorbs heat and then evaporates to form low-pressure low-temperature steam, the low-pressure low-temperature steam is sucked by the compressor and compressed into high-temperature high-pressure steam, the high-pressure steam is discharged into the condenser, heat is released to a cooling medium (water or air) in the condenser, the high-pressure liquid is condensed, the low-temperature low-pressure liquid is throttled by the throttling device and enters the evaporation tube again to absorb heat and evaporate, the continuous cooling treatment is carried out on the object to be treated in sequence, and the cooling efficiency is high.

Preferably, a plurality of trays corresponding to the inlets are arranged in the commodity shelf, the trays are detachably connected with the commodity shelf, and the trays are uniformly distributed along the height direction of the commodity shelf. The tray corresponds with the inlet, so that the object to be treated is placed on the tray, and the tray can be placed on the storage rack through the inlet conveniently.

Preferably, the commodity shelf includes two sets of support frames, and two sets of support frames are located the left and right sides of inner tube respectively and are bilateral symmetry distribution, and every support frame of group includes a plurality of backup pads, and the depth direction evenly distributed of inner tube is followed to a plurality of backup pads, one side of backup pad is connected with the lateral wall of inner tube can be dismantled, and a plurality of tray is located between two backup pads and can dismantle with the opposite side that the backup pad corresponds and be connected. The support frame is divided into a plurality of support plates to support, and compared with the integral support frame, the heat conduction is more facilitated because of the gaps between the two adjacent support plates, so that the uniformity of heating or refrigerating of the object to be treated is improved.

Preferably, a plurality of shelves equal to the number of the trays are sequentially arranged between the two support plates from top to bottom, two ends of each shelf are detachably connected with the two support plates respectively, and the trays are placed on the corresponding shelves. Before working, a user only needs to directly place the tray filled with the objects to be treated on the shelf, so that the operation is convenient and quick, and the work efficiency is improved.

As another preference, the opposite side that the backup pad corresponds is equipped with a plurality of shelves that equal with tray quantity from last to down in proper order, the one end and the backup pad fixed connection of shelf, the other end of shelf is unsettled and be equipped with the fixture block, fixture block and shelf mutually perpendicular and fixed connection, the left and right sides of tray all is equipped with the draw-in groove with fixture block assorted, the tray passes through draw-in groove and fixture block assorted detachable connection in the backup pad. Before working, a user places a tray filled with the objects to be treated on the shelf in a matched manner through the clamping grooves and the clamping blocks, on one hand, the middle part of the tray is in an overhead state, so that the heat conduction effect is further improved, and the uniformity of heating or refrigerating of the objects to be treated is further improved; on the other hand, the position stability of the tray is improved.

Preferably, the tray is made of a wire mesh, and the clamping groove is positioned at the bottom of the tray. The tray is composed of the metal wire mesh, so that the heat conduction effect is further improved, the object to be treated is heated or refrigerated more uniformly, and the working efficiency and the freeze-drying effect are improved.

Preferably, the shape of tray is the rectangle, the top of tray is equipped with and keeps off the frame with tray edge assorted rectangle, one of them apex angle department that keeps off the frame is equipped with the blanking mouth, one of them apex angle department of tray is equipped with the pivot, the pivot is located the blanking mouth, pivot perpendicular to tray is last and with tray fixed connection, be equipped with two opening plates in the pivot, one of them opening plate's one end is articulated with the pivot and its other end can be dismantled with one side of blanking mouth and be connected, and another opening plate's one end is articulated with the pivot and its other end can be dismantled with the opposite side that the blanking mouth corresponds and be connected. When the opening and closing plate is closed, the baffle frame and the opening and closing plate are helpful to prevent the to-be-treated objects or freeze-dried objects on the tray from falling off; meanwhile, when the freeze-dried substances on the tray are required to be collected, a user only needs to open the two opening and closing plates and then incline the tray, so that the freeze-dried substances in the tray fall from the blanking port in a concentrated manner under the guiding action of the baffle frame and are collected in the container, and the freeze-dried substances are convenient to collect and easy to operate; the rotating shaft is arranged at the top angle of the tray and is positioned in the blanking port, and meanwhile, the rectangular baffle frame is matched with the edge of the tray, so that the blanking port is positioned at one corresponding top angle of the baffle frames, the baffle frames on two sides adjacent to the top angle can play a better guiding role in collecting freeze-dried matters, and the freeze-dried matters can fall into the container from the blanking port in a concentrated manner.

Preferably, the storage rack is provided with a connecting plate, the connecting plate is connected with the storage rack, a driver is arranged in the box body, the driver is detachably connected with the box body, the driver is electrically connected with the control area, a knocking rod is arranged at the output end of the driver, a table top parallel to the connecting plate is arranged in the inner cylinder, the table top is fixedly connected with the side wall of the inner cylinder, the connecting plate is positioned between the tray and the table top, the output end of the driver sequentially penetrates through the side wall of the inner cylinder and the table top and then is rotationally connected with the center of the knocking rod, the knocking rod is positioned between the connecting plate and the table top, a semicircular rotating groove and a plurality of first magnets are arranged on the table top, the cross section of the rotating groove is of a T shape, the first magnets are uniformly distributed on the table top and form a circle with the rotating groove, the magnetic poles of each two adjacent first magnets are opposite, bumps corresponding to the connecting plate are respectively fixed at the two ends of the top of the knocking rod, an elastic telescopic shaft is arranged at one end of the bottom of the knocking rod, a sliding block matched with the rotating groove is connected with the knocking rod through the elastic telescopic shaft, and the other end of the bottom of the knocking rod is provided with a second magnet corresponding to the first magnet. In the initial state, the magnet II does not correspond to the magnet I, and meanwhile, the knocking rod keeps a balanced state under the action of the elastic telescopic shaft; during operation, the driver works to drive the knocking rod to rotate back and forth within the range of 180 degrees, in the rotating process, one end of the knocking rod continuously attracts and repels the first magnets through the second magnets according to the lever principle, the knocking rod rotates relative to the output end of the driver, the other end of the knocking rod synchronously rotates with the rotating groove through the sliding block, simultaneously, the bumps at the two ends of the knocking rod are driven to continuously knock the connecting plate to vibrate under the combined action of the elastic telescopic shaft, the connecting plate transmits vibration to the tray through the plurality of supporting plates, and therefore an irregular jump is generated in the tray by the to-be-processed object, the heating uniformity of the to-be-processed object is improved, the adhesion of the to-be-processed object and the tray is prevented, and the product quality is improved.

Preferably, a through hole is arranged in the center of the connecting plate, and the through hole is positioned between the convex blocks on the two ends of the knocking rod. The design of the through holes is beneficial to improving the heat conduction effect, so that the object to be treated is heated or refrigerated more uniformly, and the working efficiency and the freeze-drying effect are improved.

The beneficial effects of the utility model are as follows: the whole process of cooling and heating sublimated to form the freeze-dried substance can be completed only in the inner cylinder, and a plurality of bin bodies are not required to be arranged for operation, so that the integration degree of the box body is higher, the purpose of smaller box body volume is achieved, the occupied space is smaller, and the device is suitable for families; the cooling efficiency is high; the tray can be conveniently placed on the commodity shelf through the inlet, and the operation is convenient; the support frame is divided into a plurality of support plates for supporting, and compared with the integral support frame, the heat conduction is facilitated because of the gaps between the two adjacent support plates, so that the uniformity of heating or refrigerating of the object to be treated is improved; the tray provided with the objects to be treated is matched with the clamping blocks through the clamping grooves and is placed on the shelf, on one hand, the middle part of the tray is in an overhead state, so that the heat conduction effect is improved, and the uniformity of heating or refrigerating of the objects to be treated is improved; on the other hand, the position stability of the tray is improved; the tray is composed of the metal wire mesh, so that the heat conduction effect is further improved, the object to be treated is heated or refrigerated more uniformly, and the working efficiency and the freeze-drying effect are improved; when the opening and closing plate is closed, the baffle frame and the opening and closing plate are helpful to prevent the to-be-treated objects or freeze-dried objects on the tray from falling off; when the freeze-dried substances on the tray are required to be collected, the freeze-dried substances in the tray fall from the blanking port in a concentrated manner under the guiding action of the baffle frame and are collected in the container, so that the freeze-dried substances are convenient to collect, and the operation is simple; the objects to be treated in the tray generate irregular jumping under the knocking action of the knocking rod, so that the heated uniformity of the objects to be treated is improved, the objects to be treated and the tray are prevented from being bonded, and the product quality is improved; the design of the through holes is beneficial to improving the heat conduction effect, so that the object to be treated is heated or refrigerated more uniformly, and the working efficiency and the freeze-drying effect are improved.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a second schematic diagram of the structure of the present utility model;

FIG. 3 is a schematic view of the structure of the inside of the case;

fig. 4 is an enlarged view of the structure at B in fig. 2;

fig. 5 is an enlarged view of the structure at C in fig. 2;

FIG. 6 is a schematic view of a structure on a mesa;

fig. 7 is a cross-sectional view of A-A in fig. 6.

In the figure: 1. the vacuum pump comprises a box body, an inner cylinder, a vacuum pump, a cooling system, a door body, a vacuum pipe, a storage rack, a control area, a power interface, a evaporating pipe, a compressor, a condenser, a tray, a support frame, a support plate, a shelf, a clamping block, a clamping groove, a retaining frame, a rotary shaft, a connecting plate, a driving device, a knocking rod, a table top and a rotary groove, a magnet I, a magnet II, a through hole and a sliding block.

Detailed Description

The utility model is further described below with reference to the drawings and detailed description.

In the embodiment shown in fig. 1, fig. 2 and fig. 3, a domestic freeze drying device comprises a box body 1, an inner cylinder 2, a vacuum pump 3, a cooling system 4 and a heater are detachably connected in the box body 1, a door body 5 which is provided with an inlet and completely covers the inlet is arranged on the outer side wall of the box body 1, the opening end of the inner cylinder 2 is positioned at the inlet and is in sealing connection with the inlet, the door body 5 is hinged with the box body 1, a vacuum tube 6 is arranged on the vacuum pump 3, the vacuum pump 3 is communicated with the inside of the inner cylinder 2 through the vacuum tube 6, the cooling system 4 is attached to the outer side wall of the inner cylinder 2, the heater is connected with the inner side wall of the inner cylinder 2, a storage rack 7 is detachably arranged in the inner cylinder 2, a control area 8 and a power interface 9 which is electrically connected with the control area 8 are arranged on the box body 1, the vacuum pump 3, the cooling system 4 and the heater are electrically connected with the control area 8, as shown in fig. 3, the cooling system 4 comprises an evaporation tube 10, a compressor 11 and a condenser 12, refrigerant flows in the evaporation tube 10 and is uniformly distributed on the inner side wall 2 in a spiral shape by taking the inner cylinder 2 as a center, and is attached to the outer side wall of the inner cylinder 2, and is sequentially connected with the compressor 11 and the condenser 11 through the compressor 11 and the condenser 12, which are sequentially connected with the circulation circuit 11.

As shown in fig. 1 and 2, a plurality of trays 13 corresponding to the inlets are arranged in the storage rack 7, the trays 13 are detachably connected with the storage rack 7, and the plurality of trays 13 are uniformly distributed along the height direction of the storage rack 7.

As shown in fig. 1 and 2, the rack 7 includes two sets of support frames 14, the two sets of support frames 14 are respectively located at the left side and the right side of the inner cylinder 2 and are symmetrically distributed in a left-right manner, each set of support frames 14 includes a plurality of support plates 15, the plurality of support plates 15 are uniformly distributed along the depth direction of the inner cylinder 2, one side of each support plate 15 is detachably connected with the side wall of the inner cylinder 2, and the plurality of trays 13 are located between the two support plates 15 and are detachably connected with the other side corresponding to the support plates 15.

As shown in fig. 1, a plurality of shelves 16 equal to the number of the trays 13 are sequentially arranged between the two support plates 15 from top to bottom, two ends of each shelf 16 are detachably connected with the two support plates 15 respectively, and the trays 13 are placed on the corresponding shelves 16.

As shown in fig. 2 and 4, a plurality of shelves 16 equal to the number of the trays 13 are sequentially arranged on the other side of the supporting plate 15 from top to bottom, one end of each shelf 16 is fixedly connected with the supporting plate 15, the other end of each shelf 16 is suspended and provided with a clamping block 17, the clamping blocks 17 are mutually perpendicular to the shelves 16 and are fixedly connected, clamping grooves 18 matched with the clamping blocks 17 are respectively arranged on the left side and the right side of the tray 13, and the trays 13 are detachably connected to the supporting plate 15 in a matched mode through the clamping grooves 18 and the clamping blocks 17.

As shown in fig. 2, the tray 13 is made of a wire mesh, and the clip groove 18 is located at the bottom of the tray 13.

As shown in fig. 2 and 4, the shape of the tray 13 is rectangular, the top of the tray 13 is provided with a rectangular baffle frame 19 matched with the edge of the tray 13, one vertex angle of the baffle frame 19 is provided with a blanking port, one vertex angle of the tray 13 is provided with a rotating shaft 20, the rotating shaft 20 is positioned in the blanking port, the rotating shaft 20 is perpendicular to the tray 13 and fixedly connected with the tray 13, the rotating shaft 20 is provided with two opening and closing plates 21, one end of one opening and closing plate 21 is hinged with the rotating shaft 20, the other end of the opening and closing plate is detachably connected with one side of the blanking port, and one end of the other opening and closing plate 21 is hinged with the rotating shaft 20, and the other end of the other opening and closing plate are detachably connected with the other side corresponding to the blanking port.

As shown in fig. 2 and 5, a connecting plate 22 is arranged on the storage rack 7, the connecting plate 22 is connected with the storage rack 7, as shown in fig. 3, a driver 23 is arranged in the box 1, the driver 23 is detachably connected with the box 1, the driver 23 is electrically connected with the control area 8, as shown in fig. 2, 5, 6 and 7, a knocking rod 24 is arranged at the output end of the driver 23, a table top 25 parallel to the connecting plate 22 is arranged in the inner cylinder 2, the table top 25 is fixedly connected with the side wall of the inner cylinder 2, the connecting plate 22 is positioned between the tray 13 and the table top 25, the output end of the driver 23 sequentially penetrates through the side wall of the inner cylinder 2 and the table top 25 and is rotationally connected with the center of the knocking rod 24, the knocking rod 24 is positioned between the connecting plate 22 and the table top 25, a semicircular rotating groove 26 and a plurality of magnets 27 are arranged on the table top 25, the cross section of the rotating groove 26 is in a T shape, the magnets 27 are uniformly distributed on the table top 25 at intervals and form a circle with the rotating groove 26, the opposite magnetic poles of each two adjacent magnets 27, bumps 28 corresponding to the connecting plate 22 are fixed at the top two ends of the inner cylinder 2, the bottom 24 is provided with a first elastic shaft 29 and a second elastic shaft 29 is provided with a corresponding elastic shaft 32, and the second elastic shaft is provided with a second elastic shaft 32, and the elastic shaft is provided with a second elastic shaft 29 and a second elastic shaft is connected with the corresponding magnet 24.

As shown in fig. 2, the center of the connection plate 22 is provided with a through hole 31 between the protrusions 28 on both ends of the tapping rod 24.

In the utility model, before working, a user opens the door body 5, firstly, the tray 13 filled with the objects to be treated is placed on the storage rack 7 in sequence through the inlet, and the door body 5 is closed; the box 1 is connected with an external circuit through a power interface 9, a user starts a working mode of the freeze dryer through the control of an operation area 8, the cooling system 4 starts to work, heat in the inner barrel 2 is absorbed, an object to be treated is cooled, then the inner barrel 2 is vacuumized through the vacuum pump 3, the inner barrel 2 is in a vacuum state, finally the water molecules frozen on the object to be treated are directly sublimated into water vapor in the vacuum state, and a freeze-dried object is obtained.

Before the work starts, a user only needs to directly place the tray 13 with the objects to be treated on the shelf 16, so that the operation is convenient and quick, and the work efficiency is improved; in addition to the above embodiment, the present utility model further provides another embodiment, in which the user places the tray 13 containing the objects to be processed on the shelf 16 through the clamping groove 18 and the clamping block 17 in a matching manner, on one hand, the middle part of the tray 13 is in an overhead state, so that the heat conduction effect is further improved, and the uniformity of heating or cooling of the objects to be processed is further improved; on the other hand, the positional stability of the tray 13 is improved. Further, the tray 13 may be formed of a wire mesh, which is advantageous in improving heat conduction effect, so that the object to be treated is heated or cooled more uniformly, thereby improving working efficiency and freeze-drying effect.

When the cooling system 4 in the process works, the evaporating pipe 10 is wound on the wall of the inner cylinder 2, so that the refrigerant in the inner cylinder 2 can absorb heat in the inner cylinder, and the cooling of the object to be treated is facilitated; the refrigerant absorbs heat and then evaporates into low-pressure low-temperature steam, the low-temperature steam is sucked by the compressor 11 and compressed into high-temperature high-pressure steam, the high-pressure steam is discharged into the condenser, heat is released to a cooling medium (water or air) in the condenser, the high-pressure liquid is condensed, the low-temperature low-pressure liquid is throttled by the throttling device and enters the evaporation tube 10 again to absorb heat and evaporate, the continuous cooling treatment is carried out on the to-be-treated object in turn, and the cooling efficiency is high.

When the object to be treated is heated and sublimated, the driver 23 can be selectively started to improve the heating uniformity of the object to be treated. In the initial state, the magnet II 30 does not correspond to the magnet I27, and meanwhile, the knocking rod 24 keeps a balanced state under the action of the elastic telescopic shaft 29; during operation, the driver 23 works to drive the knocking rod 24 to rotate back and forth within a range of 180 degrees, in the rotation process, one end of the knocking rod 24 sequentially and continuously attracts and repels the first magnets 27 through the second magnets 30, so that the knocking rod 24 rotates relative to the output end of the driver 23, the other end of the knocking rod 24 synchronously rotates with the rotating groove 26 through the sliding block 32, and simultaneously, under the combined action of the elastic telescopic shaft 29, the bumps 28 at the two ends of the knocking rod 24 are driven to sequentially and alternately knock the connecting plate 22 to vibrate, and the connecting plate 22 transmits the vibration to the tray 13 through the plurality of supporting plates 15, so that an object to be processed in the tray 13 generates irregular jumping in the tray 13, further, the heating uniformity of the object to be processed is improved, the object to be processed is prevented from being bonded with the tray 13, and the product quality is improved; at this time, since the opening and closing plate 21 is in the closed state, the blocking frame 19 and the opening and closing plate 21 help to prevent the objects to be treated on the tray 13 from falling off.

After the freeze-drying is finished, the user opens the door body 5 and takes out the tray 13; when the freeze-dried substances on the tray 13 need to be collected, a user only needs to open the two opening and closing plates 21 and then incline the tray 13, so that the freeze-dried substances in the tray 13 fall from the blanking port and are collected in the container under the guiding action of the baffle frame 19, and the freeze-dried substances are convenient to collect and easy to operate.

Claims (9)

1. The utility model provides a domestic freeze drying equipment, its characterized in that includes box (1), be connected with inner tube (2), vacuum pump (3), cooling system (4) and heater in can dismantling in box (1), be equipped with entry and complete door body (5) that covers the entry on the lateral wall of box (1), the open end of inner tube (2) is located the entrance and with entry sealing connection, door body (5) are articulated with box (1), be equipped with vacuum tube (6) on vacuum pump (3), vacuum pump (3) are linked together through the inside of vacuum tube (6) and inner tube (2), cooling system (4) are laminated with the lateral wall of inner tube (2), the heater is connected with the inside wall of inner tube (2), demountable installation supporter (7) in inner tube (2), be equipped with on box (1) and control district (8) and with control district (8) electricity be connected power interface (9), vacuum pump (3), cooling system (4) and heater all are connected with control district (8) electricity, refrigerant (10) are connected with evaporator (4), condenser (10) in the condenser (10), the evaporating pipe (10) is spirally and uniformly distributed on the outer side wall of the inner cylinder (2) by taking the inner cylinder (2) as a center and is attached to the inner cylinder (2), the evaporating pipe (10), the compressor (11) and the condenser (12) are sequentially connected through pipelines to form a circulation loop, the compressor (11) and the condenser (12) are detachably connected with the box body (1), and the compressor (11) is electrically connected with the control area (8).

2. A domestic freeze-drying device according to claim 1, characterized in that a plurality of trays (13) corresponding to the inlets are arranged in the shelf (7), the trays (13) are detachably connected with the shelf (7), and the plurality of trays (13) are uniformly distributed along the height direction of the shelf (7).

3. A household freeze-drying device according to claim 2, characterized in that the shelf (7) comprises two groups of support frames (14), the two groups of support frames (14) are respectively positioned at the left side and the right side of the inner cylinder (2) and are distributed in a bilateral symmetry manner, each group of support frames (14) comprises a plurality of support plates (15), the plurality of support plates (15) are uniformly distributed along the depth direction of the inner cylinder (2), one side of each support plate (15) is detachably connected with the side wall of the inner cylinder (2), and a plurality of trays (13) are positioned between the two support plates (15) and are detachably connected with the other side corresponding to the support plates (15).

4. A domestic freeze-drying apparatus according to claim 3, characterized in that a plurality of shelves (16) equal to the number of trays (13) are arranged between the two support plates (15) in sequence from top to bottom, both ends of the shelves (16) are detachably connected with the two support plates (15) respectively, and the trays (13) are placed on the corresponding shelves (16).

5. A domestic freeze-drying equipment according to claim 3, characterized in that, the opposite side that backup pad (15) corresponds is equipped with a plurality of shelves (16) that are equal with tray (13) quantity from top to bottom in proper order, the one end and the backup pad (15) fixed connection of shelf (16), the other end unsettled and that are equipped with of shelf (16), fixture block (17) and shelf (16) mutually perpendicular and fixed connection, the left and right sides of tray (13) all is equipped with draw-in groove (18) with fixture block (17) assorted, tray (13) are through draw-in groove (18) and fixture block (17) assorted detachable connection on backup pad (15).

6. A domestic freeze-drying device according to claim 5, characterised in that the tray (13) is constituted by a wire mesh, the clamping groove (18) being located at the bottom of the tray (13).

7. A domestic freeze-drying equipment according to claim 2 or 3 or 4 or 5 or 6, characterized in that the shape of tray (13) is rectangle, the top of tray (13) is equipped with rectangle fender frame (19) with tray (13) edge assorted, one of them apex angle department of fender frame (19) is equipped with the blanking mouth, one of them apex angle department of tray (13) is equipped with pivot (20), pivot (20) are located the blanking mouth, pivot (20) are perpendicular to tray (13) and with tray (13) fixed connection, be equipped with two division board (21) on pivot (20), one of them division board (21) one end is articulated with pivot (20) and its other end is connected with one side dismantlement of blanking mouth, and one end of another division board (21) is articulated with pivot (20) and its other end is connected with the opposite side dismantlement that the blanking mouth corresponds.

8. A household freeze-drying device according to claim 2, 3, 4, 5 or 6, characterized in that the shelf (7) is provided with a connecting plate (22), the connecting plate (22) is connected with the shelf (7), a driver (23) is arranged in the box (1), the driver (23) is detachably connected with the box (1), the driver (23) is electrically connected with the control area (8), the output end of the driver (23) is provided with a knocking rod (24), the inner cylinder (2) is internally provided with a table top (25) parallel to the connecting plate (22), the table top (25) is fixedly connected with the side wall of the inner cylinder (2), the connecting plate (22) is positioned between the tray (13) and the table top (25), the output end of the driver (23) sequentially penetrates through the side wall of the inner cylinder (2) and the table top (25) and then is rotationally connected with the center of the knocking rod (24), the knocking rod (24) is positioned between the connecting plate (22) and the table top (25), the table top (25) is provided with a plurality of rotary blocks (26) and a plurality of rotary blocks (27) which are uniformly distributed in a circular shape with the cross section (27) and form a plurality of rotary blocks (27) and are distributed in a circular shape, the magnetic poles of every two adjacent magnets one (27) are opposite, the two ends of the top of the knocking rod (24) are respectively fixed with a bump (28) corresponding to the connecting plate (22), one end of the bottom of the knocking rod (24) is provided with an elastic telescopic shaft (29), the knocking rod (24) is connected with a sliding block (32) matched with the rotating groove (26) through the elastic telescopic shaft (29), and the other end of the bottom of the knocking rod (24) is provided with a magnet two (30) corresponding to the magnet one (27).

9. A domestic freeze-drying apparatus according to claim 8, characterised in that the centre of the connecting plate (22) is provided with a through hole (31) between the lugs (28) on both ends of the tapping rod (24).

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