Grain surface slow recovery air conditioning system

Abstract

The application discloses a kind of grain surface slow recovery air conditioning systems, it is related to the technical field of air conditioning in granary, including butt joint plate, the end of butt joint plate is clamped with exchange component, and the end of exchange component is extended to the outside of butt joint plate and is penetrated;The heat exchange of the two ends of the butt joint plate is carried out by the exchange component;The grain surface slow recovery air conditioning system, the temperature exchange of slow and continuous is carried out by exchange component, by progressive exchange, avoids the violent fluctuation of temperature, and temperature difference regulation is more fine and stable, to ensure that the temperature in the warehouse and the outside temperature gradually reach equilibrium;Simultaneously utilize natural air current or smaller mechanical energy to balance temperature difference, reduce the dependence on energy, achieve energy-saving effect, guide external fresh air to enter internal space, can effectively improve indoor air quality.

Description

TECHNICAL FIELD

[0001] The present application relates to the air conditioning technology in the granary, specifically relates to a kind of air conditioning system of grain surface slow recovery. BACKGROUND

[0002] Low-temperature grain storage refers to the average temperature of grain pile is kept at 15 DEG C (low temperature) or 20 DEG C (quasi low temperature) and below for a long time, and low-temperature grain storage is currently recognized as the most safe, reliable, reasonable and green storage development direction of storage technology, which is the most important way to ensure grain safety storage and quality preservation, and is the most promising green ecological storage technology.

[0003] The Chinese invention patent with publication number CN112325468A discloses a condensate-free grain surface air conditioning system. The condensate-free grain surface air conditioning system is provided with a water collecting box, a drain pipe, a U-shaped communication pipe, a one-way valve, a piston and a push rod. When the air conditioner host works, condensate water is generated due to the temperature difference between the air conditioner host and the outside air. The generated condensate water is collected by the water collecting box. The bottom of the water collecting box is inclined to the drain pipe. The collected condensate water flows into the U-shaped communication pipe through the drain pipe. When the air conditioner host works, the fan blades at the air outlet of the air conditioner host rotate, and the shaft fixedly connected with the fan blades also rotates. The rotation of the shaft drives the cam fixedly connected with the side wall of the shaft to rotate. The push rod abutting against the side wall of the cam moves up and down with the rotation of the cam. The movement of the push rod drives the piston fixedly connected with the other end of the push rod to move in the U-shaped communication pipe, so as to extrude the condensate water in the U-shaped communication pipe to one end of the corrugated pipe, and the condensate water enters the corrugated pipe, thereby facilitating the cooling of the air conditioner host.

[0004] The existing equipment is used for low-temperature grain unloading. Due to the large temperature difference between the grain in the warehouse and the air outside the warehouse, condensation easily occurs on the surface of the grain, causing the grain to rot and deteriorate. During the heat exchange process, the internal temperature changes too quickly, which affects the normal slow recovery of the grain. In addition, during the slow recovery process, the temperature and humidity in different parts of the warehouse are different, resulting in a large temperature difference in some parts, which greatly reduces the slow recovery effect. Therefore, a grain surface slow recovery air conditioning system is developed. SUMMARY

[0005] The purpose of the present application is to provide a kind of air conditioning system of grain surface slow recovery to solve the above-mentioned deficiencies in the prior art.

[0006] In order to achieve the above-mentioned purpose, the present application provides the following technical scheme: a kind of air conditioning system of grain surface slow recovery, including butt joint plate, the end of the butt joint plate is clamped with exchange component, and the end of the exchange component is penetrated and extends to the outside of the butt joint plate;The two ends of the butt joint plate are exchanged by the exchange component;

[0007] A guide assembly is assembled at the end of the exchange assembly, and cooperates with the exchange assembly to guide the exchanged gas to a designated position.

[0008] The exchange assembly comprises a locking plate fixedly connected with the docking plate, a fixing cylinder is fixedly installed at the end of the locking plate, and a guide groove is formed in the outer surface of the fixing cylinder;

[0009] A adjusting cylinder is slidingly installed on the inner wall of the fixing cylinder, a slot hole is formed in the outer surface of the adjusting cylinder, a guide block is fixedly installed at the end of the outer surface of the adjusting cylinder away from the slot hole, and the outer surface of the guide block is slidingly connected with the inner wall of the guide groove;

[0010] A driving rod is fixedly installed at the end of the locking plate, a limiting plate is fixedly installed at the end of the driving rod, a limiting block is fixedly installed on the inner wall of the adjusting cylinder, and the outer surface of the limiting block is slidingly connected with the inner wall of the limiting plate.

[0011] As a further optimization scheme of the present application, a moving plate is fixedly installed at the end of the fixing cylinder, and a plurality of protrusions are uniformly installed on the outer surface of the moving plate.

[0012] As a further optimization scheme of the present application, a flow guide cylinder is fixedly installed at the end of the adjusting cylinder, a sliding groove corresponding to the protrusions is formed in the inside of the flow guide cylinder, the inner wall of the sliding groove is slidingly connected with the outer surface of the protrusions, and a plurality of through holes are uniformly formed in the outer surface of the flow guide cylinder.

[0013] As a further optimization scheme of the present application, a plurality of telescopic rods are uniformly fixedly installed at the end of the moving plate, and a sector plate is fixedly installed at the end of the telescopic rod.

[0014] As a further optimization scheme of the present application, a protective plate is fixedly installed at the end of the flow guide cylinder, and the inner wall of the protective plate is rotationally connected with the end of the sector plate.

[0015] As a further optimization scheme of the present application, the guide assembly comprises a fixed plate fixedly connected with the fixing cylinder, a driving member is symmetrically fixedly installed at the end of the fixed plate, a supporting plate is fixedly installed at the middle position of the end of the fixed plate, and a plurality of telescopic members are uniformly fixedly installed at the end of the supporting plate.

[0016] As a further optimization scheme of the present application, an adjusting ring is arranged above the telescopic member, an annular slot is formed in the lower end of the adjusting ring, the inner wall of the annular slot is slidingly connected with the outer surface of the end of the telescopic member, and a limiting slot is formed in the inner wall of the adjusting ring.

[0017] As a further optimization scheme of the present application, the middle position of the end of the supporting plate is fixedly provided with a locking cylinder, the inner wall of the locking cylinder is rotatably provided with a ball, the outer surface of the ball is fixedly provided with an adjusting rod, and the outer surface of the end of the adjusting rod is slidably connected with the inner wall of the limiting groove.

[0018] As a further optimization scheme of the present application, the middle position of the end of the supporting plate is fixedly provided with a locking cylinder, the inner wall of the locking cylinder is rotatably provided with a ball, the outer surface of the ball is fixedly provided with an adjusting rod, and the outer surface of the end of the adjusting rod is slidably connected with the inner wall of the limiting groove.

[0019] As a further optimization scheme of the present application, the middle position of the end of the supporting plate is fixedly provided with a locking cylinder, the inner wall of the locking cylinder is rotatably provided with a ball, the outer surface of the ball is fixedly provided with an adjusting rod, and the outer surface of the end of the adjusting rod is slidably connected with the inner wall of the limiting groove.

[0020] The outer surface of the positioning rod is sleeved with an elastic member, one end of the elastic member is connected with the positioning rod, and the other end is connected with the end of the movable cylinder.

[0021] Compared with the prior art, the present application provides a grain surface recovery air conditioning system, which has the following beneficial effects:

[0022] Through the slow and continuous air temperature exchange of the exchange assembly, the temperature is prevented from fluctuating sharply through gradual exchange, the temperature difference is adjusted more finely and stably, and the temperature in the warehouse and the external temperature are gradually balanced.

[0023] The guide assembly transfers the exchanged air flow to be uniformly distributed to each area of the recovery space, avoids local overheating or overcooling, and further makes the temperature distribution of the whole space more uniform, ensures uniform distribution of the air flow, and avoids local overheating or overcooling. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments or the prior art, the drawings needed in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments described in the present application, and other drawings can also be obtained by those skilled in the art according to these drawings.

[0025] Figure 1 The overall structure schematic view provided by the embodiment of the present application is provided.

[0026] Figure 2 The overall internal structure sectional view provided by the embodiment of the present application is provided.

[0027] Figure 3 A schematic view of the structure of the switching assembly provided in the embodiment of the present application is shown in the figure;

[0028] Figure 4 A sectional view of the internal structure of the switching assembly provided in the embodiment of the present application is shown in the figure;

[0029] Figure 5 A first exploded view of the structure of the switching assembly provided in the embodiment of the present application is shown in the figure;

[0030] Figure 6 A second exploded view of the structure of the switching assembly provided in the embodiment of the present application is shown in the figure;

[0031] Figure 7 A schematic view of the structure of the guiding assembly provided in the embodiment of the present application is shown in the figure;

[0032] Figure 8 A sectional view of the internal structure of the guiding assembly provided in the embodiment of the present application is shown in the figure;

[0033] Figure 9 A first exploded view of the structure of the guiding assembly provided in the embodiment of the present application is shown in the figure;

[0034] Figure 10 A second exploded view of the structure of the guiding assembly provided in the embodiment of the present application is shown in the figure.

[0035] Explanation of reference signs:

[0036] 1, docking plate; 2, switching assembly; 3, guiding assembly; 21, locking plate; 22, fixing cylinder; 221, guide groove; 23, driving rod; 24, limiting plate; 25, adjusting cylinder; 251, slot hole; 252, guide block; 253, limiting block; 26, moving plate; 261, protruding block; 27, telescopic rod; 271, sector plate; 28, flow guiding cylinder; 281, sliding groove; 282, through hole; 29, protection plate; 31, fixing plate; 32, driving piece; 33, supporting plate; 331, telescopic piece; 34, adjusting ring; 341, annular groove; 342, limiting groove; 35, locking cylinder; 351, spherical body; 36, adjusting rod; 37, supporting plate; 371, supporting groove; 38, positioning rod; 381, movable cylinder; 382, elastic piece; 39, clamping plate; 391, connecting rod; 392, annular vane. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative effort belong to the scope of protection of the present application.

[0038] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application; the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance, in addition, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0039] Embodiment: please refer to Figures 1-10 A grain surface recovery air conditioning system, including docking plate 1, the end of docking plate 1 is clamped with exchange assembly 2, and the end of exchange assembly 2 penetrates and extends to the outside of docking plate 1, and the two ends of docking plate 1 are exchanged by exchange assembly 2.

[0040] In the scheme, the exchange assembly 2 is locked by the docking plate 1, so that the whole is stable when the exchange assembly 2 is running, and the outer surface of the exchange assembly 2 is provided with rubber and other components with sealing function, and the outer surface of the exchange assembly 2 is sealed by rubber.

[0041] Further, the exchange assembly 2 includes a locking plate 21 fixedly connected with the docking plate 1, and the end of the locking plate 21 is fixedly installed with a fixed cylinder 22, and the outer surface of the fixed cylinder 22 is provided with a guide groove 221.

[0042] In the embodiment, the end of the locking plate 21 is provided with a bolt and other components with fixing function, and the locking plate 21 is fixed in the specified position by the bolt, so as to ensure the stability of the whole exchange assembly 2. The cross section of the guide groove 221 is rectangular.

[0043] Further, the inner wall of the fixed cylinder 22 is slidably installed with an adjusting cylinder 25, the outer surface of the adjusting cylinder 25 is provided with a slot hole 251, and the outer surface of the adjusting cylinder 25 and the end away from the slot hole 251 is fixedly installed with a guide block 252, and the outer surface of the guide block 252 is slidably connected with the inner wall of the guide groove 221.

[0044] Specifically, when the adjusting cylinder 25 is stressed, the guide block 252 fixedly installed on the outer surface thereof is in sliding connection with the inner wall of the guide groove 221 in a horizontal state, so that the adjusting cylinder 25 as a whole moves, and after the guide block 252 moves to the vertical end of the guide groove 221, the adjusting cylinder 25 rotates.

[0045] Further, the end of the locking plate 21 is fixedly installed with the driving rod 23, the end of the driving rod 23 is fixedly installed with the limiting plate 24, the inner wall of the adjusting cylinder 25 is fixedly installed with the limiting block 253, and the outer surface of the limiting block 253 is in sliding connection with the inner wall of the limiting plate 24.

[0046] Specifically, the driving rod 23 is a device with power output such as a motor and is connected with an external control device, and when the driving rod 23 is started, the limiting plate 24 fixedly installed on the output end thereof is driven to rotate, wherein the limiting plate 24 is spliced by two baffles and a gap is reserved between the two baffles, the limiting block 253 is slidingly installed away from the center position, and when the limiting plate 24 rotates, the entire adjusting cylinder 25 is driven to move in cooperation with the limiting block 253.

[0047] Further, the end of the adjusting cylinder 25 is fixedly installed with the moving plate 26, and the outer surface of the moving plate 26 is uniformly installed with a plurality of protrusions 261.

[0048] Specifically, when the fixed cylinder 22 moves, the moving plate 26 fixedly installed on the end thereof is driven to move, wherein the cross section of the moving plate 26 is in the shape of a ring, and the cross section of the moving plate 26 is equal to the cross section of the inner wall of the fixed cylinder 22.

[0049] Further, the end of the adjusting cylinder 25 is fixedly installed with the flow guide cylinder 28, and the inner portion of the flow guide cylinder 28 is provided with a sliding groove 281 corresponding to the protrusion 261, the inner wall of the sliding groove 281 is in sliding connection with the outer surface of the protrusion 261, and the outer surface of the flow guide cylinder 28 is uniformly provided with a plurality of through holes 282.

[0050] Specifically, when the moving plate 26 is stressed to move, the protrusion 261 fixedly installed on the outer surface thereof is in sliding connection with the inner wall of the sliding groove 281, thereby ensuring that the moving plate 26 as a whole remains stable during operation.

[0051] The end of the sliding groove 281 is provided with an arc-shaped groove, so that when the protrusion 261 moves to the top end, it can rotate, the protrusion 261 is limited by the arc-shaped groove, so that when the protrusion 261 moves into the arc-shaped groove, it can be temporarily locked, thereby ensuring the stability of the moving plate 26.

[0052] The outer surface of the moving plate 26 is in contact with the end of the through hole 282, so that after the moving plate 26 moves, the moving plate 26 is separated from the through hole 282, and external gas slowly enters.

[0053] Further, a plurality of groups of telescopic rods 27 are uniformly fixedly installed at the ends of the moving plate 26, and the ends of the telescopic rods 27 are fixedly installed with sector plates 271.

[0054] Specifically, the telescopic rods 27 are composed of components with telescopic function such as springs, and when the moving plate 26 moves, the telescopic rods 27 and the sector plates 271 are synchronously driven to move, until the telescopic rods 27 are pressed to the maximum position, and then the moving plate 26 rotates.

[0055] Further, a protection plate 29 is fixedly installed at the end of the flow guide cylinder 28, and the inner wall of the protection plate 29 is rotationally connected with the end of the sector plate 271.

[0056] Specifically, the end of the protection plate 29 is provided with an air inlet hole corresponding to the sector plate 271, and when the sector plate 271 rotates with the moving plate 26, a gap is generated between the sector plate 271 and the air inlet hole, so that external gas enters the inside.

[0057] The slow and continuous air temperature exchange is realized through the exchange assembly 2, and through the gradual exchange, the temperature is prevented from fluctuating sharply, the temperature difference is adjusted more finely and stably, and it is ensured that the temperature in the warehouse gradually reaches equilibrium with the external temperature.

[0058] Further, the guide assembly 3 is assembled at the end of the exchange assembly 2, and cooperates with the exchange assembly 2 to guide the exchanged gas to a specified position; the guide assembly 3 comprises a fixed plate 31 fixedly connected with the fixed cylinder 22, a driving member 32 fixedly installed at the ends of the fixed plate 31 in a symmetrical manner, a supporting plate 33 fixedly installed at the middle position of the ends of the fixed plate 31, and a plurality of groups of telescopic members 331 uniformly fixedly installed at the ends of the supporting plate 33.

[0059] In this embodiment, the driving member 32 is a device with power output such as a motor, and is connected with an external control device, the output end of the driving member 32 is fixedly installed with a transmission gear, and the transmission gear drives the adjusting ring 34 to rotate. The outer surface of the adjusting ring 34 is provided with a tooth block corresponding to the transmission gear.

[0060] Further, the upper side of the telescopic member 331 is provided with the adjusting ring 34, the lower end of the adjusting ring 34 is provided with an annular groove 341, the inner wall of the annular groove 341 is slidingly connected with the outer surface of the end of the telescopic member 331, and the inner wall of the adjusting ring 34 is provided with a limiting groove 342.

[0061] Specifically, the telescopic member 331 is a component with telescopic function such as an electric telescopic rod, and is connected with an external control device, and when the telescopic member 331 is started, the adjusting ring 34 attached to the output end thereof is synchronously driven to move.

[0062] The output end of the telescopic part 331 is provided with an embedded block which is embedded with the inner wall of the annular groove 341, so as to ensure that the whole is stable when the adjusting ring 34 operates.

[0063] Further, a locking cylinder 35 is fixedly installed at the middle position of the end of the supporting plate 33, a spherical body 351 is rotatably installed on the inner wall of the locking cylinder 35, an adjusting rod 36 is fixedly installed on the outer surface of the spherical body 351, and the outer surface of the end of the adjusting rod 36 is slidably connected with the inner wall of the limiting groove 342.

[0064] Specifically, when the adjusting ring 34 moves, the adjusting rod 36 rotatably installed in the adjusting ring 34 is driven to move by cooperating with the limiting groove 342, and since the end of the adjusting rod 36 is attached to the outer surface of the spherical body 351, the adjusting rod 36 rotates around the spherical body 351 when the adjusting rod 36 moves, and the spherical body 351 is rotatably installed in the locking cylinder 35 and is limited by the locking cylinder 35.

[0065] When the adjusting ring 34 rotates, the adjusting rod 36 is driven to rotate, so as to realize angle adjustment, and when the adjusting ring 34 moves, the adjusting rod 36 rotates around the spherical body 351, so as to drive the end of the adjusting rod 36 to rotate and realize angle adjustment, and then the gas can be guided to different positions.

[0066] Further, a supporting plate 37 is rotatably installed at the middle position of the end of the adjusting rod 36, a plurality of supporting grooves 371 are uniformly formed in the end of the supporting plate 37, a clamping plate 39 is slidably installed on the inner wall of the supporting groove 371, and a connecting rod 391 is rotatably installed on the end of the clamping plate 39.

[0067] The inner wall of the adjusting rod 36 is provided with a motor or other equipment with power output, the supporting plate 37 is driven to rotate as a whole by the motor, the clamping plate 39 is limited by the supporting groove 371 formed in the end of the supporting plate 37, and the annular blade 392 is locked by the clamping plate 39.

[0068] Further, a positioning rod 38 is fixedly installed at the middle position of the end of the supporting plate 37, a movable cylinder 381 is slidably installed on the outer surface of the positioning rod 38, and the end of the connecting rod 391 is rotatably connected with the outer surface of the movable cylinder 381.

[0069] Specifically, when the movable cylinder 381 moves, the clamping plate 39 is driven to expand or contract outwardly by cooperating with the connecting rod 391, so as to be suitable for different scenes.

[0070] Further, an elastic member 382 is sleeved on the outer surface of the positioning rod 38, one end of the elastic member 382 is connected with the positioning rod 38, and the other end is connected with the end of the movable cylinder 381.

[0071] Specific, elastic member 382 is a spring or other elastic components, through the elastic member 382 to support the movable cylinder 381, so that it is always in a state of tension, convenient for locking the annular blade 392.

[0072] Meanwhile, the end of the support plate 37 is provided with a guide cylinder, and the gas can be quickly transferred to the specified position through the lengthened guide cylinder, so that the flow direction of the gas flow is further accurately controlled, the waste of the gas flow is avoided, the energy use efficiency is improved, the gas flow is transferred to the area that needs to be adjusted, the uniform distribution of the gas flow is ensured, and local overheating or overwetting is avoided.

[0073] The control device can select a single-chip microcomputer as the control end, and in the embodiment, the single-chip microcomputer is a typical embedded microcontroller (Micro controller Unit) which is composed of an arithmetic unit, a controller, a memory, an input / output device and the like, and is equivalent to a microcomputer. Compared with a general microprocessor applied in a personal computer, the single-chip microcomputer emphasizes more on self-supply (without external hardware) and cost saving. The single-chip microcomputer has the advantages of small size, can be placed in the instrument, small storage capacity, simple input / output interface and low function consumption.

[0074] The above only describes some exemplary embodiments of the present application by way of illustration, and it is needless to say that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present application. Therefore, the above drawings and descriptions are illustrative in nature and should not be understood as limiting the scope of protection of the claims of the present application.

Claims

1. A grain tempering air conditioning system, comprising: The utility model provides an exchange board (1) is connected with the exchange component (2) of end, and the end of exchange component (2) is through and extends to the outside of exchange board (1), and the both ends of exchange board (1) are exchanged by exchange component (2); Guide component (3) is assembled to the end of exchange component (2), and the exchanged gas is guided to the designated position by cooperation exchange component (2); Wherein, the exchange component (2) includes the locking plate (21) fixed connection with the exchange board (1), the end of locking plate (21) is fixedly installed with fixed cylinder (22), and the outer surface of fixed cylinder (22) is provided with guide slot (221); The inner wall of fixed cylinder (22) is slidably installed with adjusting cylinder (25), the outer surface of adjusting cylinder (25) is provided with slot hole (251), and the outer surface of adjusting cylinder (25) is fixedly installed with guide block (252) away from slot hole (251) one end, the outer surface of guide block (252) is slidably connected with the inner wall of guide slot (221); The end of locking plate (21) is fixedly installed with drive rod (23), the end of drive rod (23) is fixedly installed with limiting plate (24), the inner wall of adjusting cylinder (25) is fixedly installed with limiting block (253), the outer surface of limiting block (253) is slidably connected with the inner wall of limiting plate (24); The end of adjusting cylinder (25) is fixedly installed with moving plate (26), and the outer surface of moving plate (26) is uniformly installed with multiple groups of protruding blocks (261); The end of adjusting cylinder (25) is fixedly installed with flow guide cylinder (28), and the inside of flow guide cylinder (28) is provided with sliding groove (281) corresponding with protruding block (261), the inner wall of sliding groove (281) is slidably connected with the outer surface of protruding block (261), and the outer surface of flow guide cylinder (28) is uniformly provided with multiple groups of through holes (282); The end of moving plate (26) is uniformly fixedly installed with multiple groups of telescopic rods (27), and the end of telescopic rod (27) is fixedly installed with sector plate (271); The end of flow guide cylinder (28) is fixedly installed with protective plate (29), and the inner wall of protective plate (29) is rotatably connected with the end of sector plate (271).

2. A grain tempering air conditioning system as claimed in claim 1 wherein, The guide component (3) includes a fixed plate (31) fixedly connected with the fixed cylinder (22), the end of the fixed plate (31) is symmetrically fixedly installed with a driving member (32), the middle position of the end of the fixed plate (31) is fixedly installed with a supporting plate (33), and the end of the supporting plate (33) is uniformly fixedly installed with multiple groups of telescopic members (331).

3. A food surface recovery air conditioning system according to claim 2, wherein An adjusting ring (34) is arranged above the telescopic member (331), an annular groove (341) is formed in the lower end of the adjusting ring (34), the inner wall of the annular groove (341) is slidably connected with the outer surface of the end of the telescopic member (331), and a limiting groove (342) is formed in the inner wall of the adjusting ring (34).

4. A food surface recovery air conditioning system according to claim 3, wherein The middle position of the end of the supporting plate (33) is fixedly provided with a locking cylinder (35), the inner wall of the locking cylinder (35) is rotatably provided with a ball (351), the outer surface of the ball (351) is fixedly provided with an adjusting rod (36), and the outer surface of the end of the adjusting rod (36) is slidably connected with the inner wall of the limiting groove (342).

5. A food surface recovery air conditioning system according to claim 4 wherein, The middle position of the end of the adjusting rod (36) is rotatably provided with a supporting plate (37), the end of the supporting plate (37) is uniformly provided with a plurality of groups of supporting grooves (371), the inner wall of the supporting groove (371) is slidably provided with a clamping plate (39), and the end of the clamping plate (39) is rotatably provided with a connecting rod (391).

6. A food surface recovery air conditioning system according to claim 5 wherein, The middle position of the end of the supporting plate (37) is fixedly provided with a positioning rod (38), the outer surface of the positioning rod (38) is slidably provided with a movable cylinder (381), and the outer surface of the movable cylinder (381) is rotatably connected with the end of the connecting rod (391). The outer surface of the positioning rod (38) is sleeved with an elastic element (382), one end of the elastic element (382) is connected with the positioning rod (38), and the other end is connected with the end of the movable cylinder (381).

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