CN112337660A - Novel refrigeration centrifuge - Google Patents

Abstract

The invention provides a novel refrigeration centrifuge, which comprises a shell, wherein a centrifuge motor is fixedly arranged in the shell, the centrifuge motor is fixedly connected with an inner container, a circuit control system connected with the centrifuge motor is fixedly arranged in the shell, the shell is fixedly provided with a refrigeration system matched with the inner container, the shell is hinged and matched with an upper cover, the upper cover is in butt fit with the inner container, and the shell is fixedly provided with a locking mechanism matched with the upper cover. A refrigeration system is designed, so that the inner container is kept in a low-temperature state in the centrifugal process; the automatic locking and heat preservation functions of the upper cover have certain heat preservation effect on the mixture to be separated, and the function of automatically opening and closing the cover is realized; due to the upgrading of each module, the whole machine has good mixture separating effect, low power consumption and long service life.

Description

Novel refrigeration centrifuge

Technical Field

The invention relates to the technical field of centrifuges, in particular to a novel refrigeration centrifuge.

Background

Centrifuges are machines that utilize centrifugal force to separate components of a mixture of liquid and solid particles or liquid and liquid. In the centrifugal process of the centrifugal machine, the inner container rotating at a high speed can generate a large amount of heat due to friction with air, so that the inner container cannot be radiated in time, the inner container is in a high-temperature state, and the effect of a mixture separated in the inner container is further influenced; the modules of the whole machine are not well matched, such as a clamping cover, the modules are loosened and fall off, the motor is damaged, and the like.

Disclosure of Invention

In view of the problems identified in the background art, the present invention provides a novel refrigerated centrifuge.

The technical scheme of the invention is realized as follows:

a novel refrigeration centrifuge which characterized in that: the shell is internally and fixedly provided with a centrifuge motor, the centrifuge motor is fixedly connected with a liner, the shell is internally and fixedly provided with a circuit control system connected with the centrifuge motor, the shell is fixedly provided with a refrigerating system matched with the liner, the shell is hinged to a matching upper cover, the upper cover is matched with the liner in a butt joint mode, and the shell is fixedly provided with a locking mechanism matched with the upper cover.

The invention is further configured to: the casing includes bottom plate, left side board, right side board, posterior lateral plate and upper plate, the left side board with the right side board is through the supplementary curb plate joint cooperation preceding curb plate that connects that sets up, the fixed display screen that sets up on the preceding curb plate, the upper plate be equipped with inner bag matched with opening, the opening cup joints the sealed ring type packing ring of cooperation, sealed ring type packing ring one side with the cooperation of upper cover butt, the opposite side with the cooperation of inner bag inside wall butt, the bottom plate through a set of motor connecting strut that sets up with centrifuge motor fixed connection.

The invention is further configured to: the circuit control system comprises a main control board electrically connected with the centrifuge motor, a frequency converter is arranged between the main control board and the centrifuge motor, the main control board is electrically connected with a switching power supply, a filter is arranged between the switching power supply and the main control board, the centrifuge motor is electrically connected with a brake resistor, the brake resistor is electrically connected with the main control board, the main control board is fixedly connected with the rear side plate, and the brake resistor is in clamping fit with the rear side plate.

The invention is further configured to: the refrigerating system comprises a compressor, a condenser and a cooling fan which are connected, a barrel wall matched with the outer side of the inner container is fixedly arranged on the base plate, an inner chamber between the barrel wall and the inner container is set as a condensation chamber, a plurality of circulation ports communicated with the condensation chamber are formed in the bottom of the barrel wall, the circulation ports are matched with the cooling fan, the compressor, the condenser and the cooling fan are fixedly arranged on the fixing seat, the fixing seat is arranged on the base plate, and a ventilation groove matched with the bottom of the compressor is sleeved in the fixing seat.

The invention is further configured to: the centrifuge motor comprises a stator, a rotor is matched with an inner ring of the stator, the rotor is fixedly connected with a motor shaft, two ends of the stator are respectively sleeved with an upper motor shell and a lower motor shell in a matched mode, the motor shaft penetrates through the upper motor shell, the upper motor shell is fixedly connected with the lower motor shell through a long bolt, a plurality of motor fixing grooves matched with the motor connecting support columns are uniformly formed in the bottom of the lower motor shell, wire grooves are formed in the upper motor shell, the upper motor shell is fixedly connected with a waterproof cover, the waterproof cover is fixedly connected with the inner container, and motor waterproof sheets are arranged on the motor shaft.

The invention is further configured to: the rear side plate is fixedly provided with at least one fan device, the fan device is fixedly connected with an air guide pipeline, the air guide pipeline comprises an air outlet aligned with the middle part of the centrifugal machine motor and inclined upwards, and the bottom plate is provided with a ventilation groove matched with the bottom of the centrifugal machine motor.

The invention is further configured to: one side of the upper cover is hinged and matched with the rear side plate, the other side of the upper cover is fixedly connected with a first lock hook and a second lock hook, the upper plate is provided with a notch for the first lock hook and the second lock hook to pass through, the locking mechanism comprises a fixed vertical plate fixedly connected with the upper plate, a driving gear and a driven gear which are in meshing and matching are fixedly arranged on the fixed vertical plate, the driving gear and the driven gear have an angle alpha, wherein alpha is more than 0 degrees and less than 360 degrees, the driving gear is fixedly connected with a small motor, the fixed vertical plate is in rotational matching with a first locking plate and a second locking plate which are symmetrical, one end of the first locking plate is in meshing and matching with the driving gear, the other end of the first locking plate is in buckling and matching with the first lock hook, one end of the second locking plate is in meshing and matching with the driven gear, the other end of the second locking plate is in buckling and matching with, the fixed riser is fixed set up with second latch hook matched with second trigger sensor, fixed set up on the fixed riser with second locking plate both sides matched with first position detection sensor and second position detection sensor, first locking plate is through the manual knob of lead fixed connection who sets up.

The invention is further configured to: the upper cover comprises an outer shell layer, a supporting layer and an inner shell layer which are sequentially connected, wherein a ring-shaped convex edge is arranged in the middle of the inner shell layer and is sleeved with the liner, a heat preservation layer is arranged between the inner shell layer and the supporting layer and is provided with a ring-shaped heat preservation convex edge sleeved with the ring-shaped convex edge, the outer shell layer is provided with an observation hole, the observation hole is in threaded fit with a transparent observation cylinder piece, the transparent observation cylinder piece penetrates through the supporting layer, the heat preservation layer and the inner shell layer, and the supporting layer is in hinged fit with the rear side plate.

The invention is further configured to: the position of the outer shell layer close to the rear side plate is hinged and matched with a supporting rod, the supporting rod penetrates through the supporting layer and the inner shell layer and is hinged and matched on the bottom plate, and the upper plate is provided with a sliding groove for the supporting rod to swing in a hinged mode.

In conclusion, the beneficial effects of the invention are as follows: the novel refrigeration centrifuge provided by the invention is provided with the refrigeration system, so that the inner container is kept in a low-temperature state in the centrifugation process; the automatic locking and heat preservation functions of the upper cover have certain heat preservation effect on the mixture to be separated, and the function of automatically opening and closing the cover is realized; due to the upgrading of each module, the whole machine has good mixture separating effect, low power consumption and long service life.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

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

FIG. 2 is a schematic cross-sectional view of the present invention;

FIG. 3 is a partial schematic structural view of the present invention;

FIG. 4 is a partial schematic structural view of the present invention;

FIG. 5 is a schematic cross-sectional view of the centrifuge motor of the present invention;

FIG. 6 is an exploded view of the upper cover of the present invention;

fig. 7 is a schematic structural view of the latch mechanism of the present invention.

Reference numerals: 1. a housing; 101. a base plate; 102. a left side plate; 103. a rear side plate; 104. an upper plate; 105. a front side plate; 2. a centrifuge motor; 201. a stator; 202. a rotor; 203. a motor shaft; 204. an upper motor housing; 205. a lower motor housing; 206. a motor fixing groove; 3. an inner container; 4. a circuit control system; 401. a main control board; 402. a frequency converter; 403. a switching power supply; 404. a filter; 405. a brake resistor; 5. a refrigeration system; 501. a compressor; 502. a condenser; 503. a heat radiation fan; 504. a cylinder wall; 505. a condensing chamber; 506. a flow port; 6. an upper cover; 601. an outer shell layer; 602. a support layer; 603. an inner shell layer; 604. a ring-shaped convex edge; 605. a heat-insulating layer; 606. an observation hole; 607. a transparent viewing cylinder; 7. a latch mechanism; 701. a first latch hook; 702. a second latch hook; 703. fixing a vertical plate; 704. a driving gear; 705. a driven gear; 706. a first locking plate; 707. a second locking plate; 708. a first trigger sensor; 709. a second trigger sensor; 7010. a first position detection sensor; 7011. a second position detection sensor; 7012. a manual knob; 8. a display screen; 9. a sealing ring-shaped gasket; 10. the motor is connected with the strut; 11. a fixed seat; 12. a waterproof cover; 13. a waterproof sheet of the motor; 14. a fan device; 15. an air duct; 16. an air outlet; 17. a ventilation slot; 18. a support rod.

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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The invention is described below with reference to fig. 1-7:

a novel refrigeration centrifuge comprises a shell 1, wherein a centrifuge motor 2 is fixedly arranged in the shell 1. The shell 1 comprises a bottom plate 101, a left side plate 102, a right side plate, a rear side plate 103 and an upper plate 104, wherein the left side plate 102 and the right side plate are matched with a front side plate 105 in a clamping manner through an auxiliary connecting side plate, a display screen 8 is fixedly arranged on the front side plate 105, and the front side plate 105 can be fixed through a butting ring, a gasket and a screw after being matched with the auxiliary connecting side plate in a clamping manner, so that the disassembly and the assembly are convenient; centrifuge motor 2 includes stator 201, stator 201 inner circle cooperation has rotor 202, rotor 202 fixed connection motor shaft 203, casing 2041 and lower motor casing 2051 on the cooperation are emboliaed respectively to stator 201 both ends, motor shaft 203 passes last casing 2041 and lower motor casing 2051, go up casing 2041 through the long bolt that sets up and lower motor casing 2051 fixed connection, lower motor casing 2051 bottom evenly is equipped with a plurality of and motor connecting pillar 10 matched with motor fixed slot 206, motor fixed slot 206 is used for fixed centrifuge motor 2's position, be equipped with the wire casing on going up casing 2041, motor shaft 203 is equipped with motor waterproof sheet 13, motor waterproof sheet 13 can block the clearance of motor shaft 203 with last casing 1, prevent that liquid from getting into inside centrifuge motor 2.

Centrifuge motor 2 fixed connection inner bag 3, specifically, go up motor housing 2041 fixed connection buckler 12, buckler 12 and inner bag 3 fixed connection, buckler 12 can prevent that liquid from getting into centrifuge box and damaging other parts.

Further, casing 1 articulates and cooperates upper cover 6, and upper cover 6 cooperates with 3 butt cooperations of inner bag, and upper plate 104 is equipped with and cooperates the opening with 3 matched with of inner bag, and the opening cup joints the sealed ring type packing ring 9 of cooperation, and sealed ring type packing ring one side cooperates with 6 butt of upper cover, and opposite side and 3 inside wall butt cooperations of inner bag, and pillar 10 and centrifuge motor 2 fixed connection are connected through a set of motor that sets up to bottom plate 101. The upper cover 6 comprises an outer shell 601, a supporting layer 602 and an inner shell 603 which are connected in sequence, the middle part of the inner shell 603 is provided with a ring-shaped convex edge 604, the ring-shaped convex edge is sleeved with the inner container 3, a heat preservation layer 605 is arranged between the inner shell 603 and the supporting layer 602, the heat preservation layer 605 can preserve heat inside the inner container 3, the heat preservation layer 605 is provided with a ring-shaped heat preservation convex edge sleeved with the ring-shaped convex edge 604, the outer shell 601 is provided with an observation hole 606, the observation hole 606 is in threaded fit with a transparent observation barrel piece 607, the transparent observation barrel piece 607 penetrates through the supporting layer 602, the heat preservation layer 605 and the inner shell 603, and the supporting.

In order to realize the automatic turning and locking functions of the upper cover 6, a locking mechanism 7 matched with the upper cover 6 is fixedly arranged on the shell 1. Specifically, one side of the upper cover 6 is hinged to the rear side plate 103 and is matched with the rear side plate, the other side of the upper cover is fixedly connected with a first locking hook 701 and a second locking hook 702, the upper plate 104 is provided with a notch through which the first locking hook 701 and the second locking hook 702 pass, the locking mechanism 7 comprises a fixed vertical plate 703 fixedly connected with the upper plate 104, a driving gear 704 and a driven gear 705 which are meshed and matched are fixedly arranged on the fixed vertical plate 703, an angle α exists between the driving gear 704 and the driven gear 705, wherein α is greater than 0 ° and less than 360 °, namely the locking mechanism can be an angle lock, and α is 180 ° in the embodiment. The driving gear 704 is fixedly connected with a small motor, a fixed vertical plate 703 is rotationally matched with a first locking plate 706 and a second locking plate 707 which are symmetrical, one end of the first locking plate 706 is engaged with the driving gear 704, the other end of the first locking plate is engaged with a first locking hook 701, one end of the second locking plate 707 is engaged with a driven gear 705, the other end of the second locking plate is engaged with a second locking hook 702, a first trigger sensor 708 which is matched with the first locking hook 701 is fixedly arranged on the fixed vertical plate 703, a second trigger sensor 709 which is matched with the second locking hook 702 is fixedly arranged on the fixed vertical plate 703, a first position detection sensor 7010 and a second position detection sensor 7011 which are matched with two sides of the second locking plate 707 are fixedly arranged on the fixed vertical plate 703, and the first locking plate 706 is fixedly connected with a manual.

When the upper cover 6 is unlocked, the unlocking key is pressed under the condition of electrifying, the small motor drives the double gears to rotate, and the second locking plate 707 reaches the first position detection sensor 7010 to stop; the first lock tab 706 can be manually pulled by the manual knob 7012 when not energized.

When the lock is closed, the lock hook is pressed down to trigger the first trigger sensor 708 and the second trigger sensor 709, the small motor is started to drive the double gears to rotate, and the lock plate reaches the second position detection sensor 7011 to stop.

Further, in order to support the opened upper cover 6, the supporting rod 18 is hinged and matched at a position of the outer shell 601 close to the rear side plate 103, the supporting rod 18 is hinged and matched on the bottom plate 101 through the supporting layer 602 and the inner shell 603, and the upper plate 104 is provided with a sliding groove for the supporting rod 18 to swing in a hinged mode.

In the process of high-speed rotation of the centrifuge motor 2, the operating state of the centrifuge motor 2 needs to be controlled, a circuit control system 4 connected with the centrifuge motor 2 is fixedly arranged in the casing 1, the circuit control system 4 comprises a main control board 401 electrically connected with the centrifuge motor 2, a frequency converter 402 is arranged between the main control board 401 and the centrifuge motor 2, the main control board 401 is electrically connected with a switching power supply 403, a filter 404 is arranged between the switching power supply 403 and the main control board 401, and the centrifuge motor 2 is electrically connected with a brake resistor 405. The brake resistor 405 is electrically connected with the main control board 401, and the main control board 401, the frequency converter 402, the switching power supply 403 and the filter 404 are all fixedly connected with the rear side plate 103; brake resistance 405 and rear side board 103 joint cooperation conveniently change brake resistance 405. The main control board 401 controls the whole system and each module to work normally; the frequency converter 402 controls the normal operation of the main motor under different loads and different rotating speeds; the switch power supply 403 is used for supplying power to the low-voltage control circuit of the whole machine; the filter 404 is configured to filter interference on the power grid, so as to avoid the influence of the power grid interference on the device; the brake resistor 405 is used to shorten the deceleration time of the motor.

When the centrifuge is in operation, heat generated by friction between the rotor 202 rotating at high speed and air is collected in the inner container 3, and the inner container 3 needs to be cooled. Therefore, the refrigeration system 5 includes a compressor 501, a condenser 502 and a heat dissipation fan 503 which are connected, a cylinder wall 504 which is matched with the outer side of the inner container 3 is fixedly arranged on the bottom plate 101, an inner chamber between the cylinder wall 504 and the inner container 3 is set as a condensation chamber 505, a plurality of flow ports 506 which are communicated with the condensation chamber 505 are arranged at the bottom of the cylinder wall 504, the flow ports 506 are matched with the heat dissipation fan 503, the heat dissipation fan 503 blows cold air into the flow ports 506, and the inner container 3 is cooled in the condensation chamber 505. Wherein compressor 501, condenser 502 and radiator fan 503 all fix the setting on fixing base 11, and fixing base 11 sets up on bottom plate 101, and fixing base 11 is equipped with and embolias the complex ventilation recess with compressor 501 bottom.

In the process of high-speed rotation of the centrifuge motor 2, the motor can also generate heat, so that at least one fan device 14 is fixedly arranged on the rear side plate 103, the fan device 14 is fixedly connected with an air guide pipeline 15, the air guide pipeline 15 comprises an air outlet 16 aligned with the upper part of the middle part of the centrifuge motor 2, and the bottom plate 101 is provided with a ventilation groove 17 matched with the bottom of the centrifuge motor 2.

The working process of the present invention will be further described below:

the centrifuge motor 2 rotates the rotor 202, thereby centrifuging the sample placed inside the rotor 202 in the inner container 3. The refrigeration system 5 is specially used for cooling the inner container 3, so that the inner container 3 is kept in a lower temperature state in the centrifugation process, meanwhile, the inner container 3 needs to be subjected to heat preservation design, the inner container 3 is arranged as a heat preservation inner container 3, the opening of the inner container 3 is subjected to heat preservation above the inner container 3, and a heat preservation upper cover 6 is designed; the upper cover 6 and the whole machine are automatically switched on and off to ensure the safety protection of operators in the centrifugal process.

The circuit control system 4 detects and controls the rotating speed of the centrifuge motor 2, controls the acceleration and deceleration of the centrifuge motor 2, identifies the rotor 202, opens and closes the upper cover 6, inputs and displays parameters, monitors the internal temperature of the whole machine, saves and outputs data, controls the refrigerating system 5, protects the circuit and the like.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims (9)

1. A novel refrigeration centrifuge which characterized in that: including casing (1), casing (1) internal fixation sets up centrifuge motor (2), centrifuge motor (2) fixed connection inner bag (3), casing (1) internal fixation set up with circuit control system (4) that centrifuge motor (2) are connected, casing (1) is fixed set up with inner bag (3) matched with refrigerating system (5), casing (1) articulated cooperation upper cover (6), upper cover (6) with inner bag (3) butt cooperation, casing (1) fixed set up with upper cover (6) matched with latched device (7).

2. The novel refrigerated centrifuge of claim 1 wherein: casing (1) includes bottom plate (101), left side board (102), right side board, posterior lateral plate (103) and upper plate (104), left side board (102) with curb plate joint cooperation front side board (105) are connected through the assistance that sets up to the right side board, the fixed display screen (8) that sets up on front side board (105), upper plate (104) be equipped with inner bag (3) matched with opening, the opening cup joints the sealed ring type packing ring (9) of cooperation, sealed ring type packing ring (9) one side with upper cover (6) butt cooperation, the opposite side with inner bag (3) inside wall butt cooperation, bottom plate (101) through a set of motor connecting strut (10) that set up with centrifuge motor (2) fixed connection.

3. A novel refrigerated centrifuge as recited in claim 2 wherein: circuit control system (4) include with main control board (401) that centrifuge motor (2) electricity is connected, main control board (401) with be equipped with converter (402) between centrifuge motor (2), main control board (401) electricity connect switching power supply (403), switching power supply (403) with be equipped with wave filter (404) between main control board (401), centrifuge motor (2) electricity connection brake resistance (405), brake resistance (405) with main control board (401) electricity is connected, main control board (401) converter (402) switching power supply (403) wave filter (404) all with posterior lateral plate (103) fixed connection, brake resistance (405) with posterior lateral plate (103) joint cooperation.

4. A novel refrigerated centrifuge as recited in claim 2 wherein: refrigerating system (5) including compressor (501), condenser (502) and radiator fan (503) that are connected, fixed setting on bottom plate (101) with inner bag (3) outside matched with section of thick bamboo wall (504), section of thick bamboo wall (504) with inner bag (3) between the inner chamber establish to condensation chamber (505), section of thick bamboo wall (504) bottom is equipped with a plurality of intercommunications circulation mouth (506) of condensation chamber (505), circulation mouth (506) with radiator fan (503) cooperate, compressor (501), condenser (502) and radiator fan (503) all fixed the setting on fixing base (11), fixing base (11) set up on bottom plate (101), fixing base (11) be equipped with the compressor (501) bottom embolias the complex ventilation recess.

5. A novel refrigerated centrifuge as recited in claim 2 wherein: the centrifuge motor (2) comprises a stator (201), a rotor (202) is matched with the inner ring of the stator (201), the rotor (202) is fixedly connected with a motor shaft (203), two ends of the stator (201) are respectively sleeved and matched with an upper motor shell (204) and a lower motor shell (205), the motor shaft (203) penetrates through the upper motor shell (204), the upper motor shell (204) is fixedly connected with the lower motor shell (205) through a set long bolt, a plurality of motor fixing grooves (206) matched with the motor connecting support columns (10) are uniformly arranged at the bottom of the lower motor shell (205), the upper motor shell (204) is provided with a wire guide groove, the upper motor shell (204) is fixedly connected with a waterproof cover (12), the waterproof cover (12) is fixedly connected with the inner container (3), and a motor waterproof sheet (13) is arranged on the motor shaft (203).

6. A novel refrigerated centrifuge as recited in claim 2 wherein: the rear side plate (103) is fixedly provided with at least one fan device (14), the fan device (14) is fixedly connected with an air guide pipeline (15), the air guide pipeline (15) comprises an air outlet (16) aligned with the upper middle position of the centrifuge motor (2), and the bottom plate (101) is provided with a ventilation groove (17) matched with the bottom of the centrifuge motor (2).

7. A novel refrigerated centrifuge as recited in claim 2 wherein: one side of the upper cover (6) is hinged and matched with the rear side plate (103), the other side of the upper cover (6) is fixedly connected with a first lock hook (701) and a second lock hook (702), the upper plate (104) is provided with a notch for the first lock hook (701) and the second lock hook (702) to pass through, the latch mechanism (7) comprises a fixed vertical plate (703) fixedly connected with the upper plate (104), the fixed vertical plate (703) is fixedly provided with a driving gear (704) and a driven gear (705) which are meshed and matched, the driving gear (704) and the driven gear (705) have an angle alpha, wherein the angle alpha is more than 0 degrees and less than 360 degrees, the driving gear (704) is fixedly connected with a small motor, the fixed vertical plate (703) is rotationally matched with a first locking plate (706) and a second locking plate (707) which are symmetrical, one end of the first locking plate (706) is meshed and matched with the driving gear (, the other end with first latch hook (701) snap-fit, second locking plate (707) one end with driven gear (705) meshing cooperation, the other end with second latch hook (702) snap-fit, fixed setting on fixed riser (703) with first latch hook (701) matched with first trigger sensor (708), fixed setting on fixed riser (703) with second latch hook (702) matched with second trigger sensor (709), fixed setting on fixed riser (703) with second locking plate (707) both sides matched with first position detection sensor (7010) and second position detection sensor (7011), first locking plate (706) is through the manual knob (7012) of lead wire fixed connection who sets up.

8. A novel refrigerated centrifuge as recited in claim 2 wherein: the upper cover (6) comprises an outer shell layer (601), a supporting layer (602) and an inner shell layer (603) which are sequentially connected, wherein a ring-shaped convex edge (604) is arranged in the middle of the inner shell layer (603), the ring-shaped convex edge (604) is sleeved with the inner container (3), a heat insulation layer (605) is arranged between the inner shell layer (603) and the supporting layer (602), the heat insulation layer (605) is provided with a ring-shaped heat insulation convex edge which is sleeved with the ring-shaped convex edge (604), the outer shell layer (601) is provided with an observation hole (606), the observation hole (606) is in threaded fit with a transparent observation cylinder piece (607), the transparent observation cylinder piece (607) penetrates through the supporting layer (602), the heat insulation layer (605) and the inner shell layer (603), and the supporting layer (602) is in hinged fit with the rear side plate (103).

9. The novel refrigerated centrifuge of claim 8 wherein: the position of the outer shell layer (601) close to the rear side plate (103) is hinged and matched with a support rod (18), the support rod (18) penetrates through the support layer (602) and the inner shell layer (603) to be hinged and matched on the bottom plate (101), and the upper plate (104) is provided with a sliding groove for the support rod (18) to swing in a hinged mode.

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