CN111973781A

CN111973781A - Plant extract low temperature sterilization apparatus suitable for cosmetics preparation

Info

Publication number: CN111973781A
Application number: CN202010989552.5A
Authority: CN
Inventors: 潘中结
Original assignee: 潘中结
Current assignee: Guangzhou Yuanxiang Medical Biotechnology Co.,Ltd.
Priority date: 2020-09-18
Filing date: 2020-09-18
Publication date: 2020-11-24
Anticipated expiration: 2040-09-18
Also published as: CN111973781B

Abstract

The invention discloses a low-temperature plant extract sterilizing device suitable for cosmetic preparation, relates to the technical field of cosmetic processing, and solves the problems that the conventional sterilizing device mainly performs sterilization by mixing gas and liquid, has common mixing effect and is difficult to ensure the sterilizing effect. A low-temperature sterilization device for plant extract suitable for cosmetic preparation comprises a bottom bin; the top of the bottom bin is fixedly provided with a preparation box; a top cover is fixedly arranged at the top of the preparation box; the inboard front end bottom integral type in end storehouse is provided with the exhaust canal, provides stable constant speed's air inlet function for sterilization apparatus through being provided with the plenum box, and reciprocating motion cooperation check valve A through the piston board can be with the gas of sterilization continuously discharge the exhaust canal, and gas passes check valve B and gets into the clearance of differentiation board and dish seat when the internal gas pressure of exhaust canal is too high, breaks up gas through the round hole of differentiation board and can makes gas and plant extract even contact completion sterilization.

Description

Plant extract low temperature sterilization apparatus suitable for cosmetics preparation

Technical Field

The invention relates to the technical field of cosmetic processing, in particular to a low-temperature sterilization device for plant extract suitable for cosmetic preparation.

Background

The low-temperature sterilization technology is a generic name of sterilization modes for treating medical instruments and articles which cannot resist damp heat, and the low-temperature sterilization technology used in hospitals in the mainstream of the world comprises glutaraldehyde, acidified water, peracetic acid, ethylene oxide sterilization, hydrogen peroxide low-temperature plasma sterilization, low-temperature steam formaldehyde sterilization and the like.

For example, patent No. CN108295288A discloses a low-temperature steam formaldehyde sterilizer. In a low-temperature steam formaldehyde sterilizing apparatus using a water-sealed vacuum pump, formaldehyde is prevented from being dissolved into sealing water, and a large amount of water for diluting formaldehyde is not required, thereby reducing the running cost. The low-temperature steam formaldehyde sterilization device is provided with: a sterilization tank (2) for storing a sterilization object; a water-sealed vacuum pump (3) for sucking and discharging the gas in the sterilization tank (2) to the outside; and a catalyst reactor (6) which is provided in an exhaust passage (9) leading from the sterilization tank (2) to the vacuum pump (3) and decomposes formaldehyde. Preferably, the gas in the sterilization tank (2) can be discharged through the catalyst reactor (6) or not through the catalyst reactor (6) by changing the flow path of the exhaust path (9).

For another example, patent No. CN108391778A discloses a honey production low temperature sterilization apparatus, which comprises a cabinet body, a cabinet door, a platform, an electric box and a heat dissipation box, wherein the cabinet body comprises a heat insulation layer, cabinet feet, the platform, the cabinet body inner side is provided with the heat insulation layer, the cabinet body lower side is provided with the cabinet feet, the cabinet body inner part is provided with a motor, the motor upper end is provided with a rotating table, the motor upper side is provided with the platform, the platform upper side is provided with a lamp holder, the lamp holder upper end is provided with a lamp shade, an ultraviolet sterilization lamp is arranged in the lamp shade, the rotating table upper side is provided with an ozone generator, one side of the cabinet body is provided with the electric box, the electric box upper. Has the advantages that: the rotary table, the ultraviolet germicidal lamp and the ozone generator can achieve uniform sterilization and high sterilization efficiency, and the arranged heat dissipation box can achieve a low-temperature environment of the device and prevent honey from deteriorating.

However, the currently used sterilization device mainly sterilizes by mixing gas and liquid, the mixing effect is general, the sterilization effect is difficult to guarantee, the plant extract cannot be guaranteed to uniformly contact the sterilization gas for sterilization, and the rapid and continuous sterilization operation is not facilitated, so that the existing requirements are not met, and the plant extract low-temperature sterilization device suitable for cosmetic preparation is provided.

Disclosure of Invention

Problem (A)

The invention aims to provide a plant extract low-temperature sterilization device suitable for cosmetic preparation, and aims to solve the problems that the currently used sterilization device provided in the background art mainly performs sterilization by mixing gas and liquid, the mixing effect is general, the sterilization effect is difficult to ensure, the plant extract cannot be ensured to be uniformly contacted with the sterilization gas for sterilization, and the rapid and continuous sterilization operation is not facilitated.

(II) technical scheme

In order to achieve the purpose, the invention provides the following technical scheme: a low-temperature sterilization device for plant extract suitable for cosmetic preparation comprises a bottom bin; the top of the bottom bin is fixedly provided with a preparation box; a top cover is fixedly arranged at the top of the preparation box; the bottom bin also comprises an exhaust channel, a spacing block and a protruding channel; an exhaust channel is integrally arranged at the bottom of the front end of the inner side of the bottom bin; two groups of spacing blocks are fixedly arranged in the middle of the top of the front end of the exhaust channel, the distance between the two groups of spacing blocks is consistent with the distance between the exhaust channel and the spacing blocks, both sides of the top of the exhaust channel and the tops of the two groups of spacing blocks are respectively provided with an inclined plane structure, and the exhaust channel and the inclined plane structures of the spacing blocks are positioned on the same plane; a protruding channel is integrally arranged in the middle of the rear side of the bottom bin, and the top of the protruding channel is connected with a conveying pipe; the conveying pipe also comprises a conveying channel; the top rear side of conveyer pipe integral type is provided with transfer passage, and transfer passage front side is connected with the rear side top of preparation case and is communicated with each other.

Preferably, the bottom bin also comprises a filter screen, an air outlet pipe and a piston pipe; a filter screen is inserted between the rear side of the exhaust channel and the inner wall of the rear side of the bottom bin, one side of the filter screen is positioned outside the bottom bin and fixed through bolts, and a rubber pad is fixedly arranged at the position where the filter screen is attached to the bottom bin; the rear side of the bottom bin is connected with an air outlet pipe; two sides of the bottom bin are integrally provided with two groups of piston tubes, and the front ends of the piston tubes are connected with an inflation box.

Preferably, the inflation box further comprises a linkage shaft, a driven shaft, a rotating rod, a strip-shaped frame, a piston rod, a piston frame, a piston plate, a one-way valve A and an air inlet pipe; the bottom of the inner side of the inflation box is rotatably provided with a linkage shaft through a shaft bracket structure; two groups of driven shafts are rotatably arranged at two ends of the inner side of the inflating box, and the two groups of driven shafts are respectively in transmission connection with bevel gears arranged at two ends of a linkage shaft; a rotating rod is fixedly arranged on the outer side of the top of the driven shaft, and a cylindrical structure is integrally arranged on the top of the outer side of the rotating rod; a piston rod is integrally arranged in the middle of the rear side of the strip-shaped frame, a piston frame is fixedly arranged at the rear end of the piston rod, a piston plate is fixedly arranged at the rear side of the piston frame, and a check valve A is connected and arranged in the middle of the front side of the piston plate; the top of the inflation box is connected with an air inlet pipe; the middle of the front side of the inflation box is fixedly provided with a motor A, and the motor A is in transmission connection with a bevel gear arranged on the linkage shaft.

Preferably, the top of the interval between the exhaust channel and the interval block is fixedly provided with a differentiation plate, and the middle of the differentiation plate is provided with a round hole structure; a disc seat is fixedly arranged at the bottom of a gap between the exhaust channel and the spacing block, the bottom of the side of the disc seat is provided with a flange structure, and a rubber pad is arranged outside the flange structure and is connected with the exhaust channel and the side of the spacing block in a sealing manner; the bottom of the disk seat is fixedly provided with five groups of one-way valves B; the differentiation plate and the disc seat are both provided with intervals.

Preferably, the middle of the conveying pipe is rotatably provided with a screw propeller; the top of the conveying channel is fixedly provided with a motor B, and the motor B is in transmission connection with the top end of the spiral propeller through a coupling; the bottom of one side of the preparation box is connected with a discharge pipe.

Preferably, the inner part of the front side of the preparation box is provided with a corner-shaped protruding structure, and the front side of the bottom of the protruding structure is connected with a discharge pipe.

Preferably, the top of the discharge pipe is fixedly provided with a maintenance bin; the bottom of the front side of the maintaining bin is connected with a feeding pipe; the bottom of the feeding pipe is communicated with the top of the rear side of the bottom bin; the interior of the maintenance chamber is of a hollow structure, and the height of the bottom surface of the maintenance chamber is consistent with the height level of the top cover.

Preferably, the top cover further comprises a partition plate A, a partition plate B and a reinforcing block; five groups of partition boards A and four groups of partition boards B are fixedly arranged at the bottom of the top cover, the five groups of partition boards A and the four groups of partition boards B are arranged in a crossed manner, and the distances between the five groups of partition boards A and the four groups of partition boards B are consistent; the bottom of the clapboard A is higher than that of the clapboard B; the middle of the top of the clapboard B is provided with a square through groove; and a reinforcing block is fixedly arranged between the adjacent partition plates A and B.

(III) advantageous effects

The invention provides a plant extract low-temperature sterilization device suitable for cosmetic preparation, which provides a stable and constant-speed air inlet function for the sterilization device through an inflation box, can continuously discharge sterilized air into an exhaust channel through the reciprocating motion of a piston plate and a one-way valve A, and ensures that the air passes through a one-way valve B to enter a gap between a differentiation plate and a disc seat when the air pressure in the exhaust channel is too high, and the air is scattered through round holes of the differentiation plate to ensure that the air and the plant extract uniformly contact to finish sterilization.

Secondly, the top cover, the partition board A and the partition board B are arranged, so that a zigzag one-way channel can be formed in the preparation box, convenience is provided for conveying the plant extracting solution, the flowing dead angle of the plant extracting solution is removed, the whole circulation of the plant extracting solution can be guaranteed, and the sterilization degree of the plant extracting solution is increased.

Then, conveyer pipe, discharging pipe, maintenance storehouse and inlet pipe have constituted the main circulation passageway of plant extract, are provided with screw propeller in the conveyer pipe and can provide power to the transport of plant extract, and the setting that maintains the storehouse can transit connection discharging pipe and inlet pipe to get rid of the bubble in the plant extract in transportation process, provide convenience for the sterilization.

Drawings

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

FIG. 2 is a schematic axial side view of an embodiment of the present invention;

FIG. 3 is a schematic perspective cross-sectional view of an embodiment of the present invention;

FIG. 4 is a schematic diagram of the internal structure of the embodiment of the present invention;

FIG. 5 is a schematic view showing the internal structure of the air box in the embodiment of the present invention;

FIG. 6 is a schematic bottom view of a top cover according to an embodiment of the present invention;

FIG. 7 is an enlarged partial structural view of part A in the embodiment of the present invention;

FIG. 8 is an enlarged partial structural view of a portion B in the embodiment of the present invention;

in fig. 1 to 8, the correspondence between the part names or lines and the reference numbers is:

1. a bottom bin; 101. an exhaust channel; 102. a spacer block; 103. a protruding channel; 104. a filter screen; 105. an air outlet pipe; 106. a piston tube; 2. an air-filled tank; 201. a linkage shaft; 202. a driven shaft; 203. a rotating rod; 204. a bar frame; 205. a piston rod; 206. a piston frame; 207. a piston plate; 208. a one-way valve A; 209. an air inlet pipe; 3. a motor A; 4. a differentiation plate; 5. a tray seat; 6. a check valve B; 7. preparing a box; 8. a delivery pipe; 801. a delivery channel; 9. a screw propeller; 10. a motor B; 11. a discharge pipe; 12. maintaining the position; 13. a feed pipe; 14. a top cover; 1401. a separator A; 1402. a partition board B; 1403. a reinforcing block; 15. a discharge pipe.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1 to 8, an embodiment of the present invention includes: a low-temperature sterilization device for plant extract suitable for cosmetic preparation comprises a bottom bin 1; the top of the bottom bin 1 is fixedly provided with a preparation box 7; a top cover 14 is fixedly arranged at the top of the preparation box 7; the bottom bin 1 also comprises an exhaust channel 101, a spacing block 102 and a protruding channel 103; an exhaust channel 101 is integrally arranged at the bottom of the front end of the inner side of the bottom bin 1; two groups of spacing blocks 102 are fixedly arranged in the middle of the top of the front end of the exhaust channel 101, the distance between the two groups of spacing blocks 102 is consistent with the distance between the exhaust channel 101 and the spacing blocks 102, both sides of the top of the exhaust channel 101 and the tops of the two groups of spacing blocks 102 are provided with inclined surface structures, and the inclined surface structures of the exhaust channel 101 and the spacing blocks 102 are positioned on the same plane; the top of the interval between the exhaust channel 101 and the spacing block 102 is fixedly provided with a differentiation plate 4, and the middle of the differentiation plate 4 is provided with a round hole structure; a disc seat 5 is fixedly arranged at the bottom of a gap between the exhaust channel 101 and the spacer block 102, the bottom of the edge side of the disc seat 5 is provided with a flange structure, and a rubber pad is arranged on the outer side of the flange structure and is connected with the edge side of the exhaust channel 101 and the spacer block 102 in a sealing manner; five groups of one-way valves B6 are fixedly arranged at the bottom of the disk seat 5; intervals are arranged between the differentiation plate 4 and the disc seat 5; a protruding channel 103 is integrally arranged in the middle of the rear side of the bottom bin 1, and the top of the protruding channel 103 is connected with a conveying pipe 8; wherein, the bottom bin 1 also comprises a filter screen 104, an air outlet pipe 105 and a piston pipe 106; a filter screen 104 is inserted between the rear side of the exhaust channel 101 and the inner wall of the rear side of the bottom bin 1, one side of the filter screen 104 is positioned outside the bottom bin 1 and fixed through bolts, and a rubber pad is fixedly arranged at the position, which is attached to the bottom bin 1, of the filter screen 104; the rear side of the bottom bin 1 is connected with an air outlet pipe 105; two groups of piston tubes 106 are integrally arranged on two sides of the bottom bin 1, and the front ends of the piston tubes 106 are connected with an inflation box 2; the inflation box 2 further comprises a linkage shaft 201, a driven shaft 202, a rotating rod 203, a strip frame 204, a piston rod 205, a piston frame 206, a piston plate 207, a one-way valve A208 and an air inlet pipe 209; the bottom of the inner side of the inflation box 2 is rotatably provided with a linkage shaft 201 through a shaft bracket structure; two groups of driven shafts 202 are rotatably arranged at two ends of the inner side of the inflating box 2, and the two groups of driven shafts 202 are in transmission connection with bevel gears arranged at two ends of a linkage shaft 201 respectively; a rotating rod 203 is fixedly arranged on the outer side of the top of the driven shaft 202, and a cylindrical structure is integrally arranged on the top of the outer side of the rotating rod 203; a piston rod 205 is integrally arranged in the middle of the rear side of the bar-shaped frame 204, a piston frame 206 is fixedly arranged at the rear end of the piston rod 205, a piston plate 207 is fixedly arranged at the rear side of the piston frame 206, and a check valve A208 is connected and arranged in the middle of the front side of the piston plate 207; the top of the inflation box 2 is connected with an air inlet pipe 209; the cylindrical structure of the rotating rod 203 is positioned in the strip-shaped frame 204; a motor A3 is fixedly arranged in the middle of the front side of the inflation box 2, and a bevel gear is arranged between the motor A3 and the linkage shaft 201 for transmission connection; the conveying pipe 8 also comprises a conveying channel 801; the rear side of the top of the conveying pipe 8 is integrally provided with a conveying channel 801, and the front side of the conveying channel 801 is communicated with the top of the rear side of the preparation box 7; wherein, the inner part of the front side of the preparation box 7 is provided with a corner-shaped convex structure, and the front side of the bottom of the convex structure is connected with a discharge pipe 11; wherein, the middle of the conveying pipe 8 is rotatably provided with a screw propeller 9; the top of the conveying channel 801 is fixedly provided with a motor B10, and a coupling is arranged at the top end of the motor B10 and the top end of the screw propeller 9 for transmission connection; a discharge pipe 15 is connected and arranged at the bottom of one side of the preparation box 7.

Wherein the top of the discharge pipe 11 is fixedly provided with a maintenance chamber 12; the bottom of the front side of the maintaining chamber 12 is connected with a feeding pipe 13; the bottom of the feeding pipe 13 is communicated with the top of the rear side of the bottom bin 1; the interior of the maintenance bin 12 is a hollow structure, and the height of the bottom surface of the maintenance bin 12 is consistent with the height level of the top cover 14.

Wherein, top cover 14 also includes a baffle A1401, a baffle B1402, and a reinforcing block 1403; five groups of partition plates A1401 and four groups of partition plates B1402 are fixedly arranged at the bottom of the top cover 14, the five groups of partition plates A1401 and the four groups of partition plates B1402 are arranged in a crossing manner, and the distances between the five groups of partition plates A1401 and the four groups of partition plates B1402 are consistent; the bottom of partition A1401 is higher than the bottom of partition B1402; the middle of the top of the partition B1402 is provided with a square through groove; reinforcing blocks 1403 are fixedly arranged between adjacent partition plates A1401 and B1402.

The working principle is as follows: when in use, the plant extract is injected into the preparation box 7, and then the top cover 14 is fixed at the top of the preparation box 7; the air outlet pipe 105 and the air inlet pipe 209 are connected with a sterilization air path; starting a motor A3, driving a linkage shaft 201 to rotate by a motor A3 through a bevel gear, driving a driven shaft 202 to rotate by the linkage shaft 201 through the bevel gear, driving two groups of rotating rods 203 to rotate by the driven shaft 202, driving a bar-shaped frame 204 and a piston rod 205 to continuously reciprocate by the rotating rods 203, and sucking sterilizing gas into the exhaust channel 101 by using a piston plate 207 and a one-way valve A208 and continuously pressurizing; the air pressure in the exhaust channel 101 is increased, then the air passes through the one-way valve B6 and then is diffused through the through holes of the differentiation plate 4, the air is uniformly contacted with the plant extract for sterilization, and the sterilized air is exhausted through the air outlet pipe 105.

The starting motor B10 drives the screw propeller 9 to suck the plant extract in the bottom bin 1 into the preparation box 7; after the top cover 14 is installed, the top cover 14 forms a circulation channel inside the preparation box 7 by using the partition plate A1401 and the partition plate B1402, so that uniform circulation of plant extract can be guaranteed, the plant extract in the preparation box 7 passes through the discharge pipe 11 to enter the maintenance bin 12 for automatic defoaming, then passes through the feed pipe 13 to enter the bottom bin 1 for continuous circulation sterilization, and after sterilization is completed, the discharge pipe 15 is opened, so that the recovery sterilization device can be obtained.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a plant extract low temperature sterilization apparatus suitable for cosmetics preparation which characterized in that: comprises a bottom bin (1); a preparation box (7) is fixedly arranged at the top of the bottom bin (1); a top cover (14) is fixedly arranged at the top of the preparation box (7); the bottom bin (1) also comprises an exhaust channel (101), a spacing block (102) and a protruding channel (103); an exhaust channel (101) is integrally arranged at the bottom of the front end of the inner side of the bottom bin (1); two groups of spacing blocks (102) are fixedly arranged in the middle of the top of the front end of the exhaust channel (101), the distance between the two groups of spacing blocks (102) is consistent with the distance between the exhaust channel (101) and the spacing blocks (102), both sides of the top of the exhaust channel (101) and the tops of the two groups of spacing blocks (102) are both set to be inclined plane structures, and the exhaust channel (101) and the spacing blocks (102) are positioned on the same plane; a protruding channel (103) is integrally arranged in the middle of the rear side of the bottom bin (1), and the top of the protruding channel (103) is connected with a conveying pipe (8); the conveying pipe (8) also comprises a conveying channel (801); the rear side of the top of the conveying pipe (8) is integrally provided with a conveying channel (801), and the front side of the conveying channel (801) is communicated with the top of the rear side of the preparation box (7).

2. The device for low-temperature sterilization of plant extract suitable for cosmetic preparation according to claim 1, wherein: the bottom bin (1) also comprises a filter screen (104), an air outlet pipe (105) and a piston pipe (106); a filter screen (104) is inserted between the rear side of the exhaust channel (101) and the inner wall of the rear side of the bottom bin (1), one side of the filter screen (104) is positioned outside the bottom bin (1) and fixed through bolts, and a rubber pad is fixedly arranged at the position, which is attached to the bottom bin (1), of the filter screen (104); the rear side of the bottom bin (1) is connected with an air outlet pipe (105); two sides of the bottom bin (1) are integrally provided with two groups of piston tubes (106), and the front ends of the piston tubes (106) are connected with an inflation box (2).

3. The device for low-temperature sterilization of plant extract suitable for cosmetic preparation according to claim 2, wherein: the inflation box (2) further comprises a linkage shaft (201), a driven shaft (202), a rotating rod (203), a strip-shaped frame (204), a piston rod (205), a piston frame (206), a piston plate (207), a one-way valve A (208) and an air inlet pipe (209); the bottom of the inner side of the inflation box (2) is rotatably provided with a linkage shaft (201) through a shaft bracket structure; two driven shafts (202) are rotatably arranged at two ends of the inner side of the inflation box (2), and the two driven shafts (202) are in transmission connection with bevel gears arranged at two ends of the linkage shaft (201) respectively; a rotating rod (203) is fixedly arranged on the outer side of the top of the driven shaft (202), and a cylindrical structure is integrally arranged on the top of the outer side of the rotating rod (203); a piston rod (205) is integrally arranged in the middle of the rear side of the strip-shaped frame (204), a piston frame (206) is fixedly arranged at the rear end of the piston rod (205), a piston plate (207) is fixedly arranged at the rear side of the piston frame (206), and a check valve A (208) is connected and arranged in the middle of the front side of the piston plate (207); the top of the air inflation box (2) is connected with an air inlet pipe (209); a motor A (3) is fixedly arranged in the middle of the front side of the inflation box (2), and the motor A (3) is in transmission connection with a linkage shaft (201) through a bevel gear.

4. The device for low-temperature sterilization of plant extract suitable for cosmetic preparation according to claim 1, wherein: the top of the interval between the exhaust channel (101) and the interval block (102) is fixedly provided with a differentiation plate (4), and the middle of the differentiation plate (4) is provided with a round hole structure; a disc seat (5) is fixedly arranged at the bottom of a gap between the exhaust channel (101) and the spacer block (102), the bottoms of the side edges of the disc seat (5) are all provided with flange structures, and rubber pads are arranged on the outer sides of the flange structures and are in sealing connection with the side edges of the exhaust channel (101) and the spacer block (102); five groups of one-way valves B (6) are fixedly arranged at the bottom of the disc seat (5); intervals are arranged between the differentiation plate (4) and the disc seat (5).

5. The device for low-temperature sterilization of plant extract suitable for cosmetic preparation according to claim 1, wherein: a spiral propeller (9) is rotatably arranged in the middle of the conveying pipe (8); the top of the conveying channel (801) is fixedly provided with a motor B (10), and the motor B (10) is in transmission connection with the top end of the spiral propeller (9) through a coupling; a discharge pipe (15) is connected and arranged at the bottom of one side of the preparation box (7).

6. The device for low-temperature sterilization of plant extract suitable for cosmetic preparation according to claim 1, wherein: the inside of the front side of the preparation box (7) is provided with a corner-shaped convex structure, and the front side of the bottom of the convex structure is connected with a discharge pipe (11).

7. The device for low-temperature sterilization of plant extract suitable for cosmetic preparation according to claim 6, wherein: a maintenance chamber (12) is fixedly arranged at the top of the discharge pipe (11); the bottom of the front side of the maintaining bin (12) is connected with a feeding pipe (13); the bottom of the feeding pipe (13) is communicated with the top of the rear side of the bottom bin (1); the interior of the maintenance chamber (12) is of a hollow structure, and the height of the bottom surface of the maintenance chamber (12) is consistent with the height level of the top cover (14).

8. The device for low-temperature sterilization of plant extract suitable for cosmetic preparation according to claim 7, wherein: the top cover (14) also comprises a partition plate A (1401), a partition plate B (1402) and a reinforcing block (1403); five groups of partition plates A (1401) and four groups of partition plates B (1402) are fixedly arranged at the bottom of the top cover (14), the five groups of partition plates A (1401) and the four groups of partition plates B (1402) are arranged in a crossed manner, and the distances between the five groups of partition plates A (1401) and the four groups of partition plates B (1402) are consistent; the bottom of partition A (1401) is higher than the bottom of partition B (1402); the middle of the top of the clapboard B (1402) is provided with a square through groove; and reinforcing blocks (1403) are fixedly arranged between the adjacent partition plates A (1401) and B (1402).