CN115183521A

CN115183521A - Cold air uniform conveying device for refrigeration house

Info

Publication number: CN115183521A
Application number: CN202210825051.2A
Authority: CN
Inventors: 尹岩峰
Original assignee: Kunming Tiance Energy Saving Technology Co ltd
Current assignee: Kunming Tiance Energy Saving Technology Co ltd
Priority date: 2022-07-14
Filing date: 2022-07-14
Publication date: 2022-10-14
Anticipated expiration: 2042-07-14
Also published as: CN115183521B

Abstract

The invention discloses a cold air uniform conveying device for a refrigeration house, which comprises a calandria assembly, wherein the calandria assembly comprises a pair of centralized pipes and a plurality of aluminum calandria pipes, a cold air evacuation structure is arranged on the calandria assembly, the cold air evacuation structure comprises a cover box, an air transmission through pipe, a hanging bracket and an exhaust box, the cover box comprises a top cover shell and a bottom cover shell, and a fan is arranged on the top cover shell. According to the invention, the aluminum exhaust pipe in the cold storage is formed by the plurality of the calandria assemblies, and the cold air evacuation structure is arranged on the calandria assemblies, so that air in the cold storage enters the cover box to be cooled and then enters the air transmission through pipe, and finally is uniformly blown into different positions in the cold storage from the plurality of the exhaust boxes on the air transmission through pipe, so that cold air generated when the aluminum calandria performs heat exchange can be uniformly blown into the cold storage, the whole temperature in the cold storage is reduced, and the condition of uneven temperature in the cold storage is avoided.

Description

Cold air uniform conveying device for refrigeration house

Technical Field

The invention belongs to the technical field of refrigeration of a refrigeration house, and particularly relates to a cold air uniform conveying device for the refrigeration house.

Background

The cold storage is a constant temperature and humidity storage device for articles, which creates an environment different from the outdoor temperature or humidity by manual means, and is a constant temperature and humidity storage device for articles, wherein the common cold storage is mostly refrigerated by a refrigerator, liquid with very low gasification temperature is used as a refrigerant, so that the refrigerant is evaporated under the conditions of low pressure and mechanical control, and the heat in the cold storage is absorbed, thereby achieving the purpose of cooling.

Patent CN202120065542.2 discloses an aluminium calandria is used on high-efficient heat conduction freezer top, and this patent can show and promote refrigeration effect through being equipped with fin and heat conduction cotton effectively to promote the coolant heat exchange rate, compares traditional aluminium calandria in addition, and this aluminium calandria installation is dismantled more portably, can the follow-up maintenance cost of greatly reduced. Patent CN202023321336.8 discloses a high-efficient aluminium calandria formula evaporimeter, through setting up collection dish cooperation drainage tube and storage water tank, collects through the chamber that will catchment through the discharge water of water outlet end, prevents that the water droplet of defrosting from directly arranging to the freezer in, uses handle cooperation rotation axis moreover, makes fixture block and cassette block, makes to collect that the dish is fixed more firm, has guaranteed the storage environment of freezer.

Because the freezer is when the construction, in order to reduce the pressure when the refrigerator refrigerates, can not all lay the freezer calandria with the top of whole freezer usually in great freezer for when the refrigerant carries out heat exchange in the freezer calandria, the regional temperature of keeping away from freezer calandria position department can be less than the regional temperature of being close to freezer calandria position department, leads to the inhomogeneous condition of temperature in the freezer to take place, leads to different temperatures to lead to the fact the influence to the article of storage.

The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.

Disclosure of Invention

The invention aims to provide a cold air uniform conveying device for a refrigeration house, which is used for solving the problems in the prior art.

In order to achieve the purpose, the invention provides a cold air uniform conveying device for a refrigeration house, which comprises a calandria component, wherein the calandria component comprises a pair of concentration pipes and a plurality of aluminum calandria pipes connected between the two concentration pipes, hanging rails are arranged on the left side and the right side of the calandria component, a cold air evacuation structure is arranged on the calandria component, the cold air evacuation structure comprises a cover box sleeved at the periphery of the calandria component, an air transmission pipe fixed at the bottom end of the cover box and communicated with the cover box, a hanging bracket arranged between the hanging rails and the air transmission pipe, and an exhaust box fixed at the bottom end of the air transmission pipe and communicated with the inside of the air transmission pipe, the cover box comprises a top cover shell and a bottom cover shell, a plurality of air inlets are formed in the top end of the top cover shell, a fan is arranged at the position of the opening at the top end of the air inlets, the bottom end of the fan is an air exhaust end, and the top end of the fan is an air inlet end.

In the technical scheme of the invention, a convex pipe is connected at the outer side position of the concentration pipe, a connecting flange is fixed at the tail end of the convex pipe, and two adjacent pipe-arranging assemblies are connected from the connecting flange.

According to the technical scheme, a fixing frame is arranged between every two adjacent calandria assemblies, the top end of each fixing frame is fixed to the top wall of the refrigeration house, a clearance groove is formed in the bottom end of each fixing frame, the convex pipe is in lap joint with the bottom of each fixing frame, and the connecting flange extends into the clearance groove.

In the technical scheme of the invention, the cross section of the hanger rail is in an I shape, the top end of the hanger rail is fixed on the top wall of the refrigeration house, and the hanger rail is parallel to the aluminum calandria.

According to the technical scheme, a plurality of through holes are formed in the bottom edges of the front end and the rear end of the cover box, the aluminum discharge pipe penetrates through the through holes, a plurality of pairs of seat plates are fixed on the top wall of the interior of the cover box, a roller is rotatably connected between each pair of seat plates, the axis of each roller is perpendicular to the axis of the aluminum discharge pipe, and the rollers are lapped on the top end of the aluminum discharge pipe.

In the technical scheme of the invention, an air outlet is formed in the bottom surface of the bottom cover shell, the air transmission through pipe is in a flat rectangular tubular structure, a through groove is formed in the top end of the air transmission through pipe, the through groove is aligned with the air outlet, a plurality of air outlets are formed in the bottom surface of the air transmission through pipe, and the number of the air exhaust boxes is equal to that of the air outlets and the positions of the air exhaust boxes are in one-to-one correspondence.

In the technical scheme of the invention, the exhaust box is of a box body structure with a transparent top and a transparent bottom, the inside of the exhaust box is rotatably connected with a plurality of blade plates, the right ends of the blade plates are coaxially connected with hinge rods, and the hinge rods on the blade plates are all connected to connecting rods.

In the technical scheme of the invention, the left end and the right end of the blade plate are both provided with a convex shaft, the convex shafts penetrate through the inner wall of the exhaust box and are rotatably connected with the exhaust box, the hinge rod is fixed on the convex shaft on the right side, an included angle of 45 degrees is formed between the hinge rod and the rear end of the blade plate, and the tail end of the hinge rod is hinged with the connecting rod.

In the technical scheme of the invention, a deflector rod is fixed on the outer side surface of the connecting rod, and a plurality of magnet blocks are embedded on the inner side surface of the connecting rod and adsorbed on the right side surface of the exhaust box.

In the technical scheme of the invention, a first baffle is fixed at the rear side edge of the right end face of the exhaust box, a second baffle is fixed at the front side edge of the right end face of the exhaust box, the connecting rod is positioned between the first baffle and the second baffle, when the rear end of the connecting rod is contacted with the first baffle, a plurality of blades are horizontal, two adjacent blades are attached together, and when the front end of the connecting rod is contacted with the second baffle, the blades are vertical.

In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:

1. according to the invention, the aluminum exhaust pipe in the refrigerator is formed by the plurality of the exhaust pipe assemblies, and the cold air evacuation structure is arranged on the exhaust pipe assemblies, so that air in the refrigerator can pass through the aluminum exhaust pipe and generate heat exchange after being blown into the cover box by the fan, low-temperature cold air enters the air transmission through pipe along with the continuous work of the fan, and finally the cold air is blown into different positions in the refrigerator from the plurality of exhaust boxes on the air transmission through pipe, so that the cold air generated when the aluminum exhaust pipe performs heat exchange can be uniformly blown into the refrigerator, the whole temperature in the refrigerator is reduced, and the condition of uneven temperature in the refrigerator is avoided.

2. According to the invention, through the rollers arranged in the exhaust pipe assembly, people can move the cold air evacuation structure along the aluminum exhaust pipe under the action of the rollers by stirring the cover box on the exhaust pipe assembly, so that the purpose of adjusting the position of the cold air evacuation structure is achieved, and the position of the exhaust box for exhausting cold air can be manually adjusted by people.

3. According to the invention, through the plurality of the blade plates arranged in the exhaust box, people can achieve the purpose of controlling the through area of the exhaust box by controlling the angles of the blade plates in the exhaust box, so that the discharge amount of cold air from the exhaust box is controlled, further people can control the discharge amount of the cold air, the purpose of finely adjusting the temperature in the refrigerator is achieved, and the condition of uneven temperature in the refrigerator is further prevented.

Drawings

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

FIG. 2 is a structural view of an aluminum comb of the present invention;

FIG. 3 is a structural view of the fixing frame of the present invention;

FIG. 4 is a view showing the structure of a cold air evacuation structure according to the present invention;

FIG. 5 is a bottom structure view of the cold air evacuation structure of the present invention;

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

FIG. 7 is a partial cross-sectional view of the bottom housing of the present invention;

FIG. 8 is a structural view of the hanger of the present invention;

FIG. 9 is an exploded view of the venting tank of the present invention;

FIG. 10 is a structural view of a louver according to the present invention;

fig. 11 is a structural view of a connecting rod in the present invention.

Description of the reference numerals:

1-a calandria assembly; 11-a concentration conduit; 111-male tube; 112-a connecting flange; 12-aluminum gauntlets;

2-a fixed mount; 21-avoiding the empty slot;

3, hanging a rail;

4-cold air evacuation structure; 41-cover box; 411-top enclosure; 4111-air inlet; 4112-a fan; 4113-through port; 4114-a seat plate; 4115-rollers; 412-a bottom casing; 4121-air outlet; 42-air transmission through pipe; 421-through groove; 422-an exhaust port; 43-a hanger; 431-card board; 432-a fixed bar; 433-a roller; 44-an exhaust box; 441-blade plate; 4411-protruding shaft; 4412-a hinge rod; 442-a connecting rod; 4421-driving lever; 4422-a magnet block; 443-a first baffle; 444-second baffle.

Detailed Description

The following detailed description of the present invention is provided in conjunction with the accompanying drawings, but it should be understood that the scope of the present invention is not limited to the specific embodiments.

Throughout the specification and claims, unless explicitly stated otherwise, the term "comprise" or variations such as "comprises" or "comprising", etc., will be understood to imply the inclusion of a stated element or component but not the exclusion of any other element or component.

Referring to fig. 1 to 11, the cold air uniform delivery device for a cold storage according to the present invention includes a rack pipe assembly 1, the rack pipe assembly 1 includes a pair of concentration pipes 11 and a plurality of aluminum rack pipes 12 connected between the two concentration pipes 11, a convex pipe 111 is connected to an outer side position of the concentration pipe 11, a connection flange 112 is fixed to a terminal of the convex pipe 111, two adjacent rack pipe assemblies 1 are connected to each other through the connection flange 112, so that the two adjacent rack pipe assemblies 1 can be connected together, a refrigerant of a refrigeration device can flow through the rack pipe assembly 1 by connecting the rack pipe assembly 1 with the refrigeration device, so that the refrigerant can exchange heat in the aluminum rack pipes 12, absorb ambient heat, and achieve a purpose of cooling the cold storage. Be provided with mount 2 between two adjacent calandria subassemblies 1, the top of mount 2 is fixed on the roof of freezer, clearance groove 21 has been seted up to the bottom of mount 2, the overlap joint of flange 111 is in the bottom of mount 2, flange 112 stretches into in the clearance groove 21, under the effect of mount 2, the position overlap joint that can make two calandria subassemblies 1 be connected is on mount 2, reach the purpose of hoisting calandria subassembly 1, make a plurality of calandria subassemblies 1 can be installed the top of freezer and keep and leave the space between the roof of freezer.

In the invention, the left side and the right side of the calandria component 1 are both provided with the hanging rails 3, the cross sections of the hanging rails 3 are I-shaped, the top ends of the hanging rails 3 are fixed on the top wall of the refrigeration house, and the hanging rails 3 are parallel to the aluminum calandria 12.

Specifically, the calandria assembly 1 is provided with a cold air evacuation structure 4, and the cold air evacuation structure 4 includes a cover box 41 sleeved on the periphery of the calandria assembly 1, an air duct 42 fixed at the bottom end of the cover box 41 and communicated with the cover box 41, a hanger 43 installed between the hanger rail 3 and the air duct 42, and an exhaust box 44 fixed at the bottom end of the air duct 42 and communicated with the inside of the air duct 42. The hood case 41 includes a top hood shell 411 and a bottom hood shell 412, a plurality of through holes 4113 are formed in bottom edges of front and rear ends of the hood case 41, the aluminum rack pipe 12 penetrates through the through holes 4113, the top hood shell 411 and the bottom hood shell 412 are placed on the top and bottom sides of the aluminum rack pipe 12 respectively, the top hood shell 411 and the bottom hood shell 412 are folded and fixed by bolts, the aluminum rack pipe 12 can be covered in the hood case 41 formed by combining the top hood shell 411 and the bottom hood shell 412, a plurality of air inlets 4111 are formed in the top end of the top hood shell 411, a fan 4112 is installed at an opening position of the top end of the air inlet 4111, the bottom end of the fan 4112 is an air exhaust end, the top end of the fan 4112 is an air inlet end, and when the fan 4112 is connected with an external power source, the fan 4112 starts to work and sends air at the top of the refrigeration house into the hood case 41.

Further, be fixed with a plurality of pairs of bedplate 4114 on the inside roof of cover case 41, all rotate between each pair of bedplate 4114 and be connected with roller 4115, the axis of roller 4115 and the axis of aluminium calandria 12 are vertical, roller 4115 overlap joint is on the top of aluminium calandria 12, after top housing 411 and end housing 412 are folded in the outside of aluminium calandria 12, stir cover case 41 from the outside of aluminium calandria 12 and can make cover case 41 move along aluminium calandria 12 under the effect of roller 4115, reach the mesh of manual regulation cover case 41 on calandria subassembly 1 position.

In addition, the bottom surface of the bottom cover 412 is provided with an air outlet 4121, the air transmission pipe 42 is in a flat rectangular tubular structure, the top end of the air transmission pipe 42 is provided with a through groove 421, the through groove 421 is aligned with the position of the air outlet 4121, the bottom surface of the air transmission pipe 42 is provided with a plurality of exhaust ports 422, along with the operation of the fan 4112, the air in the refrigerator passes through the plurality of aluminum pipes 12 after being sent into the cover box 41, so that the heat in the air is exchanged with the refrigerant in the aluminum pipes 12, the refrigerant absorbs the heat in the air to cool the air, the cooled air enters the air transmission pipe 42 through the through groove 421 and the air outlet 4121 and is discharged from the exhaust ports 422, the cooled air can flow to different positions in the refrigerator through the air transmission pipe 42, so that the area far away from the position of the aluminum pipes 12 in the refrigerator is cooled, the cooled air is uniformly input into the refrigerator, the refrigeration effect of the refrigerator is increased, and the occurrence of uneven temperature in the refrigerator is avoided.

It should be noted that a hanging bracket 43 is disposed between the top end of the air duct 42 and the hanger rail 3, the hanging bracket 43 is fixed on the air duct 42, a plurality of clamping plates 431 are fixed on the top end of the hanging bracket 43, a fixing rod 432 is sleeved in the clamping plates 431, both ends of the fixing rod 432 are bent and rotatably connected with rollers 433, the rollers 433 are lapped on the bottom wall of the end face of the i-shaped hanger rail 3, so that the rollers 433 can roll along the hanger rail 3, the hanging bracket 43 is hung on the hanger rail 3 through the rollers 433, when the cover box 41 moves along the aluminum rack pipe 12, the cover box 41 can drive the air duct 42 to move together, so that the air duct 42 drives the rollers 433 to roll along the hanger rail 3 through the hanging bracket 43, the end of the air duct 42 is limited below the hanger rail 3 during the movement through the hanging bracket 43, the occurrence of the bending phenomenon of the air duct 42 due to its own gravity can be prevented, and the deformation of the air duct 42 can be prevented.

In the above scheme, the exhaust box 44 is a box structure with a top and a bottom which are through, the number of the exhaust boxes 44 is equal to that of the exhaust ports 422, and the positions of the exhaust boxes are in one-to-one correspondence, so that when cold air flows into the air transmission through pipe 42 and is exhausted from the exhaust ports 422, the cold air can enter the exhaust box 44.

Specifically, a plurality of vane plates 441 are rotatably connected inside the exhaust box 44, the right ends of the vane plates 441 are coaxially connected with hinge rods 4412, the hinge rods 4412 on the vane plates 441 are all connected to the connecting rod 442, the left ends and the right ends of the vane plates 441 are provided with convex shafts 4411, the convex shafts 4411 penetrate through the inner wall of the exhaust box 44 and are rotatably connected with the exhaust box 44, the hinge rods 4412 are fixed on the convex shafts 4411 on the right sides, the hinge rods 4412 form an included angle of 45 degrees with the rear ends of the vane plates 441, the tail ends of the hinge rods 4412 are hinged to the connecting rod 442, and when a person stirs the connecting rod 442, the connecting rod 442 can drive the vane plates 441 to synchronously rotate around the convex shafts 4411 under the action of the hinge rods 4412, so that the purpose of controlling the rotation angle of the vane plates 441 is achieved.

Furthermore, a first baffle 443 is fixed on the rear side edge of the right end surface of the exhaust box 44, a second baffle 444 is fixed on the front side edge of the right end surface of the exhaust box 44, the connecting rod 442 is located between the first baffle 443 and the second baffle 444, when the rear end of the connecting rod 442 contacts with the first baffle 443, the plurality of blades 441 are horizontal and two adjacent blades 441 are attached together, so that the inside of the exhaust box 44 at this time is sealed by the plurality of blades 441, the cold air flowing into the exhaust box 44 cannot be normally discharged downwards into the cold storage, when the connecting rod 442 is toggled to make the front end of the connecting rod 442 contact with the second baffle 444, the blades 441 are vertical, and at this time, the influence of the blades 441 on the flow of the cold air in the exhaust box 44 is reduced to the minimum, so that the cold air can be discharged from the air delivery pipe 42 to the lower side of the exhaust box 44 at the maximum flow rate, thereby achieving the purpose of controlling the discharge amount of the exhaust box 44, so that people can individually control the discharge amount of the cold air in the cold storage, so that people can adjust the temperature of the input cold air through the plurality of blades 441 to achieve the purpose of finely adjusting the temperature in the cold storage.

In addition, a shift lever 4421 is fixed on the outer surface of the connecting rod 442, so that a user can shift the teaching board of the connecting rod 442 by shifting the shift lever 4421, thereby achieving the purpose of controlling the angle of the blade 441. The inner surface of the connecting rod 442 is embedded with a plurality of magnet pieces 4422, the magnet pieces 4422 are adsorbed on the right side surface of the exhaust box 44, and the connecting rod 442 after being shifted can be positioned on the outer surface of the exhaust box 44 under the action of the magnetic force of the magnet pieces 4422, so that the blade plate 441 is prevented from being blown by cold air and changing the angle due to the flow of the cold air.

The working principle of the cold air uniform conveying device for the refrigeration house is as follows:

firstly, people stir the cover box 41 on the calandria component 1 to enable the cover box 41 to move along the aluminum calandria 12 under the action of the rollers 4115, and enable the air transmission through pipe 42 to be driven by the cover box 41 to move, so as to achieve the purpose of manually adjusting the position of the cover box 41 on the calandria component 1, then the fan 4112 is connected with an external power supply to enable the fan 4112 to start working and send the air at the top of the refrigerator into the cover box 41, the cold air enters the cover box 41 along with the cold air, and the cold air can exchange heat with the refrigerant in the aluminum calandria 12 when passing through the aluminum calandria 12, so that the air is cooled, the cooled air can flow into the air transmission through pipe 42 through the through groove 421 and the air outlet 4121, and finally the cold air entering the air transmission through pipe 42 can continuously flow and enter the exhaust box 44 through the exhaust port 422, so that the cold air is uniformly discharged to different positions in the refrigerator through the exhaust boxes 44, thereby achieving the purpose of integrally cooling in the refrigerator, and preventing the occurrence of uneven temperature in the refrigerator.

The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. It is not intended to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain certain principles of the invention and its practical application to enable one skilled in the art to make and use various exemplary embodiments of the invention and various alternatives and modifications as are suited to the particular use contemplated. It is intended that the scope of the invention be defined by the claims and their equivalents.

Claims

1. The utility model provides a cold air even delivery device for freezer, includes calandria subassembly (1), its characterized in that: calandria subassembly (1) includes a pair of concentrated pipe (11) and connects two concentrate a plurality of aluminium calandria (12) between pipe (11), the left and right sides of calandria subassembly (1) all is provided with hanger rail (3), install the sparse structure of air conditioning (4) on calandria subassembly (1), the sparse structure of air conditioning (4) establishes including cover case (41) of calandria subassembly (1) peripheral department, fix cover case (41) bottom and with cover case (41) the defeated air duct (42) that is linked together, install hanger rail (3) with gallows (43) between defeated air duct (42) and fixing defeated air duct (42) bottom and with defeated air duct (42) inside exhaust box (44) that are linked together, cover case (41) are including top housing (411) and end housing (412), a plurality of income wind gap (4111) have been seted up on the top of top housing (411), the top oral area position department of income wind gap (4111) installs fan (4112), the bottom of fan (4112) is arranged for the top of fan (4112) end (4112).

2. The cold air uniform delivery device for the refrigerator according to claim 1, wherein: the outer side of the concentration pipe (11) is connected with a convex pipe (111), the tail end of the convex pipe (111) is fixed with a connecting flange (112), and two adjacent pipe rack assemblies (1) are connected through the connecting flange (112).

3. The cold air uniform delivery device for the refrigerator according to claim 2, wherein: adjacent two be provided with mount (2) between calandria subassembly (1), the top of mount (2) is fixed on the roof of freezer, empty groove (21) of keeping away has been seted up to the bottom of mount (2), protruding pipe (111) overlap joint is in the bottom of mount (2), flange (112) stretch into in empty groove (21) keep away.

4. The cold air uniform delivery device for the refrigerator according to claim 1, wherein: the cross section of hanger rail (3) is I shape, the top of hanger rail (3) is fixed on the roof of freezer, hanger rail (3) with aluminium calandria (12) are parallel.

5. The cold air uniform delivery device for the refrigerator according to claim 1, wherein: a plurality of openings (4113) have all been seted up to the bottom edge at both ends around cover case (41), aluminium calandria (12) is followed pass in opening (4113), be fixed with a plurality ofly on the inside roof of cover case (41) to bedplate (4114), every right all rotate between bedplate (4114) and be connected with roller (4115), the axis of roller (4115) with the axis of aluminium calandria (12) is vertical form, roller (4115) overlap joint is in the top of aluminium calandria (12).

6. The cold air uniform delivery device for the refrigerator according to claim 1, wherein: an air outlet (4121) is formed in the bottom surface of the bottom cover shell (412), the air transmission pipe (42) is of a flat rectangular tubular structure, a through groove (421) is formed in the top end of the air transmission pipe (42), the through groove (421) is aligned with the air outlet (4121), a plurality of air exhaust ports (422) are formed in the bottom surface of the air transmission pipe (42), and the number of the air exhaust boxes (44) is equal to that of the air exhaust ports (422) and the air exhaust ports are in one-to-one correspondence with each other in position.

7. The cold air uniform delivery device for the refrigerator according to claim 1, wherein: the exhaust box (44) is of a box body structure with a transparent top and a transparent bottom, a plurality of blade plates (441) are rotatably connected inside the exhaust box (44), the right ends of the blade plates (441) are coaxially connected with hinge rods (4412), and the hinge rods (4412) on the blade plates (441) are all connected to a connecting rod (442).

8. The cold air uniform delivery device for the refrigerator according to claim 7, characterized in that: the left end and the right end of the blade plate (441) are respectively provided with a convex shaft (4411), the convex shafts (4411) penetrate through the inner wall of the exhaust box (44) and are rotatably connected with the exhaust box (44), the hinge rod (4412) is fixed on the convex shaft (4411) on the right side, the hinge rod (4412) and the rear end of the blade plate (441) form an included angle of 45 degrees, and the tail end of the hinge rod (4412) is hinged with the connecting rod (442).

9. The cold air uniform delivery device for the refrigerator according to claim 7, characterized in that: a deflector rod (4421) is fixed on the outer side surface of the connecting rod (442), a plurality of magnet blocks (4422) are embedded on the inner side surface of the connecting rod (442), and the magnet blocks (4422) are adsorbed on the right side surface of the exhaust box (44).

10. The cold air uniform delivery device for the refrigerator according to claim 7, wherein: a first baffle (443) is fixed at the rear side edge of the right end face of the exhaust box (44), a second baffle (444) is fixed at the front side edge of the right end face of the exhaust box (44), the connecting rod (442) is positioned between the first baffle (443) and the second baffle (444), when the rear end of the connecting rod (442) is in contact with the first baffle (443), a plurality of the blades (441) are in a horizontal shape, two adjacent blades (441) are in contact, and when the front end of the connecting rod (442) is in contact with the second baffle (444), the blades (441) are in a vertical shape.