CN111457648B

CN111457648B - Novel freezer

Info

Publication number: CN111457648B
Application number: CN202010245478.6A
Authority: CN
Inventors: 柏启虎; 芦建丽; 和保财
Original assignee: Beijing Han'er Refrigeration Equipment Engineering Co ltd
Current assignee: Beijing Han'er Refrigeration Equipment Engineering Co ltd
Priority date: 2020-03-31
Filing date: 2020-03-31
Publication date: 2021-12-24
Anticipated expiration: 2040-03-31
Also published as: CN111457648A

Abstract

The invention relates to a novel freezer, which has the technical scheme that: comprises a freezer body and a freezer door; the refrigerator body entrance is provided with and blocks this external air admission refrigerator this internal transition storehouse of refrigerator, the transition storehouse is provided with the connecting seat with refrigerator body inner wall connection towards one side of refrigerator door, the transition storehouse is including setting up the bottom plate on refrigerator body diapire, set up at the relative both sides of bottom plate and a pair of riser of being connected with the connecting seat, set up at a pair of riser upper surface and with the parallel roof of bottom plate and set up the inner door that deviates from refrigerator door one side at a pair of riser and be used for switching transition storehouse, this internal attemperator that penetrates the roof and adjust to the temperature in the transition storehouse that is provided with of refrigerator, all be provided with the temperature display on the bottom plate of refrigerator body diapire and transition storehouse. The invention has the advantages that the air outside the freezer is prevented from entering the freezer body, thereby reducing the possibility of deterioration and rot of the frozen food in the freezer.

Description

Novel freezer

Technical Field

The invention relates to refrigeration equipment, in particular to a novel freezer.

Background

The refrigerator body is a facility which can refrigerate by various devices and can be manually controlled and maintain a stable low temperature. Comprises a refrigeration system, a control device, a heat insulation storehouse, an affiliated building and other basic components. The main body of the refrigerator is used for food, medicine and mechanical freezing and refrigerating, and the refrigerator keeps a certain low temperature indoors through artificial refrigeration.

The current chinese patent that publication number is CN207214579U discloses a novel freezer, including the freezer, the leading flank middle part of freezer is equipped with the freezer door, the left side of freezer door is equipped with distance sensor, the freezer is opened in the left side of freezer door has first sliding tray, the left end upper portion front and back side of freezer door is equipped with first pulley, the right-hand member upper portion of freezer door is equipped with the rack, rack and circular gear mesh mutually, circular gear's middle part is pegged graft in the pivot of motor, the freezer is opened at the lower extreme of freezer door has the second sliding tray, the middle part of second sliding tray is equipped with spacing, the lower extreme front and back side of freezer door is equipped with the second pulley. During operation, the switch button controls the forward and reverse rotation of the motor, so that the circular gear is driven to rotate forward and reverse, the cold storage door is driven to move left and right in the first sliding groove through the rack, and the cold storage door is opened and closed.

When the worker moves the frozen product to or takes out the cold storage, air outside the cold storage is easy to enter the cold storage through the cold storage door, so that the temperature difference between an area near the cold storage door and the inside of the cold storage is large, the frozen product placed in the cold storage is easy to deteriorate and rot, and the quality of the frozen product is influenced.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a novel freezer, which has the advantage that the air outside the freezer is prevented from entering the freezer body, so that the possibility of deterioration and rot of frozen foods in the freezer is reduced.

The technical purpose of the invention is realized by the following technical scheme:

a novel freezer comprises a freezer body and a freezer door arranged in the middle of the front side of the freezer body; the refrigerator body entrance is provided with and blocks this external air admission refrigerator this internal transition storehouse of refrigerator, the transition storehouse is provided with the connecting seat with refrigerator body inner wall connection towards one side of refrigerator door, the transition storehouse is including setting up the bottom plate on refrigerator body diapire, set up at the relative both sides of bottom plate and a pair of riser of being connected with the connecting seat, set up at a pair of riser upper surface and with the parallel roof of bottom plate and set up the inner door that deviates from refrigerator door one side at a pair of riser and be used for switching transition storehouse, this internal attemperator that penetrates the roof and adjust to the temperature in the transition storehouse that is provided with of refrigerator, all be provided with the temperature display on the bottom plate of refrigerator body diapire and transition storehouse.

Through adopting above-mentioned technical scheme, when the staff need place the freezer originally internally with freezing product, open the freezer door earlier, get into in the transition storehouse, and through attemperator with the temperature adjustment in the transition storehouse to with this internal temperature of freezer after being close, open the interior door and place freezing product this internally at the freezer, because this external air of freezer directly does not enter into the freezer originally internally through the freezer door, but through the temperature transition in the transition storehouse, thereby it is internal to reduce the external air entering freezer of freezer, thereby reduce the possibility that the interior freezing food of freezer is rotten.

The present invention in a preferred example may be further configured to: one side intercommunication that the transition storehouse deviates from the cold storage door is provided with the extension storehouse of being connected with the transition storehouse slides, the extension storehouse is including setting up in one side that the bottom plate deviates from the cold storage door and with the bottom plate lower junction plate of being connected that slides, the setting deviates from one side of cold storage door at the roof and slides the upper junction plate of being connected with the roof and set up the extension plate that deviates from cold storage door one side and slide and be connected with the riser at a pair of riser, the one end that the upper junction plate deviates from the cold storage door is equipped with the slide, the one end that the lower junction plate deviates from the cold storage door is equipped with the glide slope, the upper and lower both ends of inner door slide respectively with last slide and glide slope slide and be connected, be provided with the drive assembly of drive inner door sliding opening switching inner door on the inner door, the longitudinal section of last slide and glide slope all is the T type of opening towards the inner door.

Through adopting above-mentioned technical scheme, the setting in extension storehouse for the staff can be when the installation transition storehouse, adjusts the length that the extension storehouse slided out the transition storehouse according to the size of freezer body, thereby adjusts transition storehouse and the holistic size in extension storehouse, thereby strengthens transition storehouse's suitability.

The present invention in a preferred example may be further configured to: a cavity is formed in one side, deviating from the cold storage door, of the vertical plate, the longitudinal section of the vertical plate is in a U shape with an opening facing the extension plate, the extension plate slides in the cavity, and the height of the extension plate is the same as that of the vertical plate.

Through adopting above-mentioned technical scheme, set up the extension plate in the riser and with the high the same of riser, be convenient for when the extension plate slides, avoid the appearance space between extension plate and roof and the bottom plate to reduce this internal air conditioning of freezer and the air conditioning in the transition bin and carry out the possibility of exchanging.

The present invention in a preferred example may be further configured to: one side of the upper connecting plate facing the top plate is provided with a limiting block, one side of the top plate facing the upper connecting plate is provided with a limiting groove connected with the limiting block in a sliding mode, and the limiting groove extends for a certain distance from one side, close to the cold storage door, of the top plate to one side back to the interior of the cold storage.

Through adopting above-mentioned technical scheme, when the staff pulled out the roof with the upper junction plate, the stopper spacing inslot slided, and the sliding distance of upper junction plate has been restricted in the setting of spacing groove, and reduced the upper junction plate when the motion, the possibility that breaks away from between upper junction plate and the roof.

The present invention in a preferred example may be further configured to: the drive assembly comprises a plurality of fixed blocks arranged on the bottom surface of the inner door and abutted against the inner wall of the lower slideway, a screw rod arranged in the lower slideway and penetrating through the fixed blocks and in threaded connection with the fixed blocks, and a first motor driving the screw rod to rotate.

Through adopting above-mentioned technical scheme, the staff can drive the rotation of first motor output shaft, drives the rotation of screw rod for with the axial motion of screw rod screw-thread fit's fixed block along the screw rod, and slide with the glide slope and be connected, thereby drive the interior door and slide along the extending direction of glide slope, the door is convenient for open and close in, it is internal to place the freezer with freezing product.

The present invention in a preferred example may be further configured to: the upper surface of the inner door is provided with a plurality of sliding blocks which are distributed with the fixed blocks in a staggered mode, and the sliding blocks are connected with the upper sliding ways in a sliding mode.

Through adopting above-mentioned technical scheme, when first motor drive screw rod rotated, drive the fixed block and slide in the glide slope along the axial of screw rod to drive interior door and follow the extending direction motion of glide slope, and interior door is at gliding in-process, drives the slider and moves at last slide, thereby stability when having strengthened interior door motion.

The present invention in a preferred example may be further configured to: the temperature adjusting device comprises a cold air pipe penetrating through the top plate and conveying cold air to the transition bin, a plurality of air outlet pipes communicated with the outer peripheral surface of the pipe opening of the cold air pipe, and adjusting components arranged on the air outlet pipes and used for adjusting the air outlet quantity of the air outlet pipes.

Through adopting above-mentioned technical scheme, the staff can be according to the subaerial temperature display on with the transition storehouse bottom plate of freezer body temperature in adjusting the transition storehouse, when this external air of freezer enters into the transition storehouse in, through attemperator with the temperature regulation in the transition storehouse to be close with this internal temperature of freezer to reduce this external air of freezer and enter into this internal possibility of freezer.

The present invention in a preferred example may be further configured to: the gas outlet pipe upper surface is vertical to be seted up the fluting, and adjusting part includes that the regulating plate of being connected slides with the fluting, vertical fixation deviate from gas outlet pipe one end connecting block, through connection piece and with connecting block threaded connection's lead screw and drive lead screw pivoted second motor at the regulating plate.

Through adopting above-mentioned technical scheme, the staff passes through the rotation of second motor drive lead screw, because grooved limiting displacement, lead screw pivoted in-process drives the axial motion of connecting block along the lead screw for the regulating plate slides along grooved extending direction, thereby the size of sheltering from of regulating plate to the outlet duct adjusts the intraductal air conditioning of air conditioning and enters into the size in the outlet duct, and the staff of being convenient for adjusts the cold tolerance in the transition bin according to actual conditions.

In conclusion, the invention has the following beneficial effects:

1. the transition bin is arranged on one side, close to the door of the refrigerator, in the refrigerator body, and air entering from the outside of the refrigerator body is adjusted through the transition bin, so that the possibility that the air outside the refrigerator body enters the refrigerator body is reduced, and the possibility that frozen food in the refrigerator is deteriorated and rotted is reduced;

2. through setting up attemperator, be convenient for adjust the temperature in the transition storehouse to reduce the influence to freezing product quality of the air that gets into the freezer body in the transition storehouse.

Drawings

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

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

FIG. 3 is a schematic view of a highlighted transition bin;

FIG. 4 is a schematic view of a highlighted elongated bin configuration;

FIG. 5 is an exploded view highlighting the connection of the inner door to the upper and lower runs;

FIG. 6 is a schematic view showing the connection relationship between the limiting blocks and the limiting grooves;

fig. 7 is an enlarged schematic view of a detail of part a of fig. 6.

In the figure, 1, a refrigerator body; 11. a cold storage door; 12. a temperature display; 13. a connecting seat; 131. connecting grooves; 2. a transition bin; 21. a base plate; 22. a top plate; 221. a limiting groove; 23. a vertical plate; 231. a connecting strip; 24. an inner door; 241. a slider; 3. a lengthening bin; 31. a lower connecting plate; 311. a lower slideway; 312. a limiting plate; 313. a support block; 314. clamping the strip; 32. an upper connecting plate; 321. an upper slideway; 322. a limiting block; 323. clamping the strip; 33. an extension plate; 331. a groove; 4. a drive assembly; 41. a fixed block; 42. a screw; 421. a limiting plate; 43. a first motor; 5. a temperature adjusting device; 51. a cold air pipe; 52. an air outlet pipe; 521. grooving; 53. an adjustment assembly; 531. an adjusting plate; 532. connecting blocks; 533. a screw rod; 534. a second motor; 535. and a support plate.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Example (b): a novel freezer is shown in figures 1 and 2 and comprises a freezer body 1 and a freezer door 11 arranged in the middle of the front side of the freezer body 1, wherein a transition bin 2 used for blocking air outside the freezer is arranged on one side, close to the freezer door 11, of the freezer body 1. Combine fig. 3 and fig. 4, transition bin 2 is provided with the connecting seat 13 with the wall connection of freezer body 1 towards one side of cold storage door 11, and transition bin 2 is including setting up bottom plate 21 on freezer body 1 diapire, setting up in the relative both sides of bottom plate 21 and a pair of riser 23 of being connected with connecting seat 13, set up on a pair of riser 23 upper surface and with the parallel roof 22 of bottom plate 21 and set up at a pair of riser 23 and deviate from cold storage door 11 and be used for opening and close inner door 24 of transition bin 2.

As shown in fig. 2 and 3, connecting seat 13 is fixed on the inner wall of freezer body 1, connecting groove 131 has been seted up towards one side of riser 23 to connecting seat 13, combine fig. 4 and 5, riser 23 is provided with the connecting strip 231 with the connecting groove 131 joint towards one side of connecting seat 13, and be connected riser 23 and connecting seat 13 through the bolt, all inlay on ground and the bottom plate 21 of reinforcing riser 23 and freezer body 1 and be equipped with temperature display 12, be provided with in the freezer body 1 and penetrate roof 22 and carry out attemperator 5 that adjusts to the temperature in the transition storehouse 2. When the staff need place the freezing product in freezer body 1, open cold storage door 11 earlier, get into in the transition bin 2, and through attemperator 5 with the temperature adjustment in the transition bin 2 to be close with the temperature in the freezer body 1 after, open interior door 24 and place the freezing product in freezer body 1, because the air outside freezer body 1 does not directly enter into freezer body 1 through cold storage door 11, but through the temperature transition in the transition bin 2, thereby reduce the air outside the freezer and get into in freezer body 1, thereby reduce the possibility that the frozen food in the freezer goes bad and rot.

As shown in fig. 2 and 3, one side of the transition bin 2 departing from the cold storage door 11 is communicated with an extension bin 3, and the extension bin 3 comprises a lower connecting plate 31, an upper connecting plate 32 and an extension plate 33, wherein the lower connecting plate 31 is arranged on one side of the bottom plate 21 departing from the cold storage door 11 and is connected with the bottom plate 21 in a sliding manner, the upper connecting plate 32 is arranged on one side of the top plate 22 departing from the cold storage door 11 and is connected with the top plate 22 in a sliding manner, and the extension plate 33 is arranged on one side of the pair of vertical plates 23 departing from the cold storage door 11 and is connected with the vertical plates 23 in a sliding manner. With reference to fig. 4 and 5, an upper slide 321 is disposed at one end of the upper connecting plate 32, which deviates from the cold storage door 11, which deviates from the cold storage door, which is located at one side of the upper connecting plate 32, a lower slide 311 is disposed at one end of the lower connecting plate 31, which deviates from the cold storage door 11, which is located at one side of the cold storage door, which is located at one side of the lower connecting plate 311, the lengths of the upper slide 321 and the lower slide 311 are greater than the lengths of the upper connecting plate 32 and the lower connecting plate 31, the upper end and the lower end of the inner door 24 are slidably connected with the upper slide 321 and the lower slide 311, a driving assembly 4 for driving the inner door 24 to slide and open and close the inner door 24 is disposed on the inner door 24, and the longitudinal sections of the upper slide 321 and the lower slide 311 are both T-shaped with openings facing the inner door 24.

As shown in fig. 3 and 5, in order to enhance the sealing performance between the transition bin 2 and the extension bin 3 and reduce the exchange between the air in the transition bin 2 and the air in the refrigerator body 1, a cavity is formed in one side of the pair of vertical plates 23 away from the refrigerator door 11, the cross section of the pair of vertical plates 23 is in a U shape with an opening facing the extension plate 33, the extension plate 33 is located in the cavity and connected with the vertical plates 23 in a sliding manner, and the upper surface of the extension plate 33 is flush with the upper surface of the vertical plates 23. The longitudinal section of the bottom plate 21 is in a U shape with an opening facing the top plate 22, the lower connecting plate 31 is connected with the inner wall of the bottom plate 21 in a sliding way, and a supporting block 313 abutted with the ground is arranged on the lower surface of one side of the lower connecting plate 31 facing the inner door 24. The longitudinal section of roof 22 is the U type of opening towards bottom plate 21, and the upper junction plate 32 slides with the inner wall of roof 22 and is connected, combines figure 6, and roof 22 offers along upper junction plate 32 direction of motion's spacing groove 221 towards one side of upper junction plate 32, and one side of upper junction plate 32 towards roof 22 is provided with the stopper 322 of being connected with spacing groove 221 slides, and the end of spacing groove 221 does not pierce through roof 22 and deviates from cold storage door 11 one side. When the upper connecting plate 32 is pulled, the stopper 322 slides in the stopper groove 221, and the end of the stopper groove 221 restricts the upper connecting plate 32 from sliding out of the top plate 22.

As shown in fig. 5, the upper and lower ends of the pair of extension plates 33 are recessed inward to form a groove 331, the lower connecting plate 31 is fixedly connected to one side of the extension plate 33 by a clamping strip 323314 engaged with the groove 331, the upper connecting plate 32 is fixedly connected to one side of the extension plate 33 by a clamping strip 323314 engaged with the groove 331, and the upper surface of the upper connecting plate 32 is provided with an embedded groove penetrating through the upper connecting plate 32, a bolt penetrating through the upper connecting plate 32 and the clamping strip 323314 and used for reinforcing the fixing of the upper connecting plate 32 and the extension plate 33 is arranged in the embedded groove, and the end of the bolt does not protrude out of the surface of the upper connecting plate 32, so as not to affect the sliding of the upper connecting plate 32 in the top plate 22. The staff can be according to the size of freezer body 1, pull lower junction plate 31 and upper junction plate 32 to pull extension plate 33 and the length that lower junction plate 31 slided out the same, thereby adjust the size of transition bin 2, strengthen the suitability of transition bin 2.

As shown in fig. 4 and 5, the driving assembly 4 includes 5 fixing blocks 41 uniformly arranged along the length direction of the inner door 24 and disposed on the bottom surface of the inner door 24, a screw rod 42 penetrating through the 5 fixing blocks 41 and in threaded connection therewith, and a first motor 43 driving the screw rod 42 to rotate, two ends of the lower slideway 311 are respectively provided with a limiting plate 421312, the screw rod 42 is disposed in the lower slideway 311 and rotatably connected with a pair of limiting plates 421312, one end of the screw rod 42 penetrates through the limiting plate 421312 and is fixedly connected with an output shaft of the first motor 43, and the first motor 43 is fixed on the limiting plate 421312. The staff can drive the rotation of first motor 43 output shaft, drives the rotation of screw rod 42 for with the axial motion of screw rod 42 screw-thread fit's fixed block 41, and slide with glide slope 311 and be connected, thereby drive interior door 24 and slide along the extending direction of glide slope 311, be convenient for open and close interior door 24, place the frozen product in freezer body 1. The upper surface of the inner door 24 is further provided with 4 sliding blocks 241 uniformly distributed along the length direction of the inner door 24, the sliding blocks 241 are connected with the upper sliding rail 321 in a sliding manner, and the sliding blocks 241 and the fixed blocks 41 are arranged in a staggered manner, so that the connection between the inner door 24 and the upper connecting plate 32 and between the inner door 24 and the lower connecting plate 31 is enhanced.

As shown in fig. 6 and 7, the temperature adjusting device 5 includes a cold air pipe 51 penetrating through the top plate 22 for conveying cold air into the transition bin 2, 4 air outlet pipes 52 communicated with the outer peripheral surface of the pipe opening of the cold air pipe 51, and an adjusting assembly 53 disposed on the air outlet pipe 52 for adjusting the air outlet amount of the air outlet pipe 52. The upper surface of the air outlet pipe 52 is provided with a vertical downward slot 521, the adjusting assembly 53 comprises an adjusting plate 531 slidably connected with the slot 521, a connecting block 532 vertically fixed on one end of the adjusting plate 531, which is far away from the air outlet pipe 52, a screw rod 533 penetrating through the connecting block 532 and in threaded connection with the connecting block 532, and a second motor 534 driving the screw rod 533 to rotate, the upper surface of the air outlet pipe 52 is provided with a supporting plate 535, two ends of the screw rod 533 are rotatably connected with the supporting plate 535, and one side of the screw rod 533, which is far away from the air outlet pipe 52, penetrates out of the supporting plate 535 and is fixedly connected with an output shaft of the second motor 534. The staff passes through the rotation of second motor 534 drive lead screw 533, because the limiting displacement of fluting 521, lead screw 533 pivoted in-process drives connecting block 532 along the axial motion of lead screw 533 for regulating plate 531 slides along the extending direction of fluting 521, thereby the size of sheltering from of regulating plate 531 to outlet duct 52 is adjusted, the size in outlet duct 52 is entered into to the air conditioning of adjusting cold air duct 51, the staff of being convenient for adjusts the cold tolerance in transition bin 2 according to actual conditions.

The implementation principle of the embodiment is as follows: when the staff need place freezing product in freezer body 1, open cold storage door 11 earlier, get into in the transition bin 2, and through attemperator 5 with the temperature adjustment in the transition bin 2 to with the temperature in the freezer body 1 after being close, open interior door 24 and place freezing product in freezer body 1, because the air outside freezer body 1 does not directly enter into freezer body 1 through cold storage door 11 in, but through the temperature transition in the transition bin 2, thereby reduce the air outside the freezer and get into in freezer body 1, thereby reduce the rotten possibility of freezing food in the freezer.

The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.

Claims

1. The utility model provides a novel freezer, includes freezer body (1) and sets up cold storage door (11) at freezer body (1) front side middle part, its characterized in that: the refrigerator comprises a refrigerator body (1), a transition bin (2) is arranged at an inlet of the refrigerator body (1) and used for preventing air outside the refrigerator body (1) from entering the refrigerator body (1), a connecting seat (13) connected with the inner wall of the refrigerator body (1) is arranged on one side, facing a refrigerator door (11), of the transition bin (2), the transition bin (2) comprises a bottom plate (21) arranged on the bottom wall of the refrigerator body (1), a pair of vertical plates (23) arranged on two opposite sides of the bottom plate (21) and connected with the connecting seat (13), a top plate (22) erected on the upper surface of the pair of vertical plates (23) and parallel to the bottom plate (21) and an inner door (24) arranged on one side, deviating from the refrigerator door (11), of the pair of vertical plates (23) and used for opening and closing the transition bin (2), and a temperature adjusting device (5) penetrating through the top plate (22) and adjusting the temperature in the transition bin (2) is arranged in the refrigerator body (1), temperature displays (12) are arranged on the bottom wall of the freezer body (1) and the bottom plate (21) of the transition bin (2);

the temperature adjusting device (5) comprises a cold air pipe (51) penetrating through the top plate (22) and conveying cold air to the transition bin (2), a plurality of air outlet pipes (52) communicated with the outer peripheral surface of the pipe orifice of the cold air pipe (51), and an adjusting assembly (53) arranged on the air outlet pipes (52) and used for adjusting the air outlet quantity of the air outlet pipes (52);

the upper surface of the air outlet pipe (52) is vertically provided with a groove (521), the adjusting assembly (53) comprises an adjusting plate (531) connected with the groove (521) in a sliding manner, a connecting block (532) vertically fixed on one end of the adjusting plate (531) away from the air outlet pipe (52), a screw rod (533) penetrating through the connecting block (532) and in threaded connection with the connecting block (532), and a second motor (534) driving the screw rod (533) to rotate;

transition bin (2) deviate from one side intercommunication of cold storage door (11) and be provided with the extension storehouse (3) of being connected with transition bin (2) slide, extension storehouse (3) including set up in bottom plate (21) deviate from one side of cold storage door (11) and with bottom plate (21) slide lower junction plate (31) of being connected, set up in roof (22) deviate from one side of cold storage door (11) and with roof (22) slide upper junction plate (32) of being connected and set up at a pair of riser (23) deviate from cold storage door (11) one side and with riser (23) slide extension plate (33) of being connected, the one end that upper junction plate (32) deviate from cold storage door (11) is equipped with slide (321), the one end that lower junction plate (31) deviate from cold storage door (11) is equipped with slide (311) down, the upper and lower both ends of interior door (24) slide with upper slide (321) and slide down slide respectively and be connected, be provided with drive assembly (4) of drive interior door (24) of sliding opening and closing of interior door (24) in interior door (24) on interior door (24).

2. The new freezer as claimed in claim 1, wherein: one side of the vertical plates (23) departing from the cold storage door (11) is provided with a cavity, the longitudinal sections of the vertical plates (23) are U-shaped with openings facing the extension plates (33), the extension plates (33) slide in the cavity, and the heights of the extension plates (33) are the same as the heights of the vertical plates (23).

3. The new freezer as claimed in claim 2, wherein: one side of upper junction plate (32) towards roof (22) is provided with stopper (322), and roof (22) offer towards one side of upper junction plate (32) with stopper (322) slide spacing groove (221) of being connected, spacing groove (221) extend one section distance to one side in the back from the cold store from roof (22) one side that is close to cold store door (11).

4. The new freezer as claimed in claim 1, wherein: the driving assembly (4) comprises a plurality of fixing blocks (41) which are arranged on the bottom surface of the inner door (24) and are abutted against the inner wall of the lower slideway (311), a screw rod (42) which is arranged in the lower slideway (311) and penetrates through the fixing blocks (41) and is in threaded connection with the fixing blocks (41), and a first motor (43) for driving the screw rod (42) to rotate.

5. The novel freezer according to claim 4, wherein: the upper surface of the inner door (24) is provided with a plurality of sliding blocks (241) which are distributed with the fixed blocks (41) in a staggered mode, and the sliding blocks (241) are connected with the upper slide ways (321) in a sliding mode.