Refrigeration variable control device

Abstract

The invention relates to the technical field of environment refrigeration, and particularly discloses a refrigeration variable control device which comprises a shell assembly, the shell assembly comprises a box shell, a refrigerator is installed on the side face in the box shell, a gas pipeline is installed at the bottom of the refrigerator, and the other end of the gas pipeline is installed on the side face of a ventilation assembly. A biological culture box is mounted in the box body shell; by arranging the ventilation assembly and the air guide assembly, when the temperature rises, the rotating speed of the fan assembly is increased, the air circulation rate is increased, and the internal air pressure of the first ventilation channel is gradually increased, so that a square turning plate pushes the outer side edge of an air guide plate, and the angle of the air guide plate is changed; further, when the gas is exhausted outwards from the horizontal air port again, the gas slides over the upper surface of the culture dish under the action of the air guide plate with the variable angle to preferentially cool the nearby air, and the situation that the temperature of the culture dish is drastically changed due to cold air directly blown out after the cooling rate is increased is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of environmental refrigeration, and more particularly to a refrigeration variable control device. Background Art

[0002] When cultivating microorganisms, it is often necessary to analyze their growth adaptability in different environments. At this time, temperature control in the incubator is extremely important. It is necessary to ensure that the growth environment of the microorganisms is always in a constant temperature environment and to be able to observe their ecological changes in special environments.

[0003] The Chinese invention patent with the publication number CN109266544A discloses a microorganism incubator, including a body, a door installed on one side of the front end of the body, a handle installed on one side of the front end face of the door, an observation window is provided at the center of the front end face of the door, a slide groove is provided on the front end face of the door located above the observation window, a transparent glass is installed at the front and rear ends of the observation window, a groove is provided at the bottom end between two transparent glasses inside the door, and a shading plate is provided at the upper end of the groove. The microorganism incubator described in the present invention is provided with a shading plate, a limit card and a bracket, which can prevent external light sources from shining into the incubator from the observation window position, effectively avoiding interference from external light sources; the door can be locked by the limit card and the fixed buckle to achieve a better sealing effect; the space between each layer of partitions can be adjusted arbitrarily by the limit hole on the bracket, so as to make rational use of the space.

[0004] It can be seen that the inlet and outlet positions of the temperature control device currently used for biological culture are fixed, and it is unable to cope with the impact of different wind speeds on microorganisms. In addition, the adjustment of sunlight exposure cannot be fully automated, and cannot be automatically adjusted according to the internal temperature. The temperature adjustment is slow, which increases the effect of external light on the internal temperature, causing microorganisms to be susceptible to drastic temperature changes and then die in hot weather. At the same time, it is also not conducive to the stable collection of growth information of cultured microorganisms. The condensed water produced by temperature changes affects the observation effect, and it has high usage limitations. Summary of the invention

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a refrigeration variable control device to solve the problems existing in the above-mentioned background technology.

[0006] The present invention provides the following technical solutions: a refrigeration variable control device, comprising a shell component, the shell component comprising a box shell, a refrigerator is installed on the side of the box shell, a gas pipeline is installed at the bottom of the refrigerator, the other end of the gas pipeline is installed on the side of the ventilation component, a biological incubator is installed inside the box shell, a ventilation component is installed at the bottom of the biological incubator, an air guide component is installed inside the ventilation component, a cover plate is installed on the front of the box shell, a plurality of shock-absorbing support rods are installed at the bottom of the box shell, the biological incubator is installed on the top of the shock-absorbing support rod, a spring is installed inside the shock-absorbing support rod, a partition and a glass plate are installed on the top of the biological incubator, a shading component is installed on the side of the partition, and a display screen is installed on the top of the shell component; The ventilation assembly includes a ventilation box, a plurality of air pressure arc plates are installed inside the ventilation box, a cam shaft is installed on the top of the air pressure arc plate, a gas pressure spring is installed on the arc-shaped back of the air pressure arc plate, an external cam is fixedly connected to the top of the cam shaft, a push rod assembly is installed on one side of the external cam, a first main shaft is fixedly connected to the top of the ventilation box, and a plurality of culture grooves are opened on the outside of the first main shaft Furthermore, a first ventilation duct and a second ventilation duct are provided inside the ventilation box, a plurality of filter air outlets are provided between the first ventilation duct and the second ventilation duct, an external air duct is provided on the outside of the first ventilation duct at the gas pressure spring, an air inlet is provided on one side of the first ventilation duct, and a plurality of horizontal air outlets are provided at the bottom of the air guide plate in the middle of the second ventilation duct.

[0007] Furthermore, the biological incubator includes a biological box body, a ventilation duct is installed on the side of the biological box body, ventilation holes corresponding to the wind shield are opened inside the ventilation duct, a fan assembly is installed inside the ventilation duct, and the side of the fan assembly is movably connected to an external motor.

[0008] Furthermore, the air guide assembly includes two first inclined blocks, the top of the first inclined block is fixedly connected to the first straight rod, a plurality of square flaps are installed between the first straight rods, the square flaps are installed at the bottom of the air guide plates, and a third spring is installed on the outside of the first straight rod and at the top of the first inclined block.

[0009] Furthermore, the shading assembly includes a first frame, an external connecting shaft is fixedly connected to the bottom of one side of the first frame, a fourth spring is installed on the outside of the external connecting shaft, and a wind shield is fixedly connected to the side of the external connecting shaft. Under normal conditions of low-speed airflow, the first frame is located on the top of the partition under the action of the fourth spring, and air holes are opened on the side of the wind shield, and the air holes are spaced apart from the air holes of the fan assembly.

[0010] Furthermore, the first frame includes an upper slide plate, lower connecting rods are fixedly connected to both sides of the bottom of the upper slide plate, a horizontal connecting rod is fixedly connected to the bottom of the lower connecting rod, the upper slide plate is installed on the top of the partition, and a water-absorbing brush is installed on the top of the upper slide plate.

[0011] Furthermore, a temperature sensor is installed at the bottom of the partition inside the biological incubator, and the temperature sensor is used to collect temperature information inside the biological box to form first judgment information, and control the rotation speed of the external motor at the fan assembly and the output power of the refrigerator through electrical signals.

[0012] Furthermore, the push rod assembly is composed of a second spring and a push rod, a plurality of fixed grooves are provided on the top of the culture tank, and a plurality of culture dishes are installed inside the fixed grooves.

[0013] Furthermore, the air guide plate is composed of a rotating plate and a rotating rod.

[0014] Technical effects and advantages of the present invention: 1. The present invention is provided with a ventilation component and an air guide component, which is conducive to accelerating the rotation speed of the fan component and the gas circulation rate when the temperature rises. The internal air pressure of the first ventilation channel gradually increases, so that the square flap pushes the outer edge of the air guide plate to change its angle, and then when the gas is discharged outward from the horizontal air outlet again, under the action of the air guide plate with a changed angle, it slides over the upper surface of the culture dish to preferentially cool the nearby air, thereby avoiding the cold air directly blown out after the cooling rate increases, causing the temperature of the culture dish to change drastically.

[0015] 2. The present invention is provided with a shading component, which is beneficial for the first frame to move horizontally when the temperature rises, and the visible gap between the partitions is gradually reduced under the blocking of the upper slide plate. At this time, the influence of sunlight on the interior is reduced, so that the internal cooling effect is better. At the same time, the brush removes the condensed water on the glass plate due to temperature changes, thereby increasing the visibility of the glass plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0017] Figure 2 It is a front view of the overall structure of the present invention.

[0018] Figure 3 It is a schematic diagram of the structure of the biological incubator of the present invention.

[0019] Figure 4 It is a schematic diagram of the structure of the ventilation component of the present invention.

[0020] Figure 5 It is a cross-sectional view of the ventilation component structure of the present invention.

[0021] Figure 6 For the present invention Figure 5 Schematic diagram of the AA structure.

[0022] Figure 7 For the present invention Figure 5 Schematic diagram of the BB structure.

[0023] Figure 8 It is a schematic diagram of the structure of the air guide assembly of the present invention.

[0024] Fig. 9 It is a schematic diagram of the structure of the shading component of the present invention.

[0025] Fig.10 It is a schematic diagram of the side connecting rod structure of the present invention.

[0026] The accompanying drawings are marked as follows: 1. Shell assembly; 101. Box shell; 102. Refrigerator; 103. Gas pipeline; 104. Shock-absorbing support rod; 105. Cover plate; 2. Biological incubator; 201. Biological box; 202. Ventilation duct; 203. Fan assembly; 204. Shock-absorbing sleeve; 3. Ventilation assembly; 301. Ventilation box; 3011. External air duct; 3012. Air inlet; 3013. First ventilation duct; 3014. Second ventilation duct; 3015. Filter air outlet; 3016. Horizontal air outlet; 3017. Circular groove; 302. Air pressure arc plate; 303, cam shaft; 304, gas spring; 305, push rod assembly; 306, first main shaft; 307, culture tank; 308, external cam; 4, wind guide plate; 5, wind guide assembly; 501, first inclined block; 502, first straight rod; 503, third spring; 504, square flap; 6, shading assembly; 601, first frame; 6011, upper slide plate; 6012, lower connecting rod; 6013, horizontal connecting rod; 602, external connecting shaft; 603, fourth spring; 604, wind shield; 7, partition; 8, glass plate; 9, display screen. DETAILED DESCRIPTION

[0027] The technical solution of the present invention will be clearly and completely described below in conjunction with the drawings in the present invention. In addition, the forms of the various structures recorded in the following embodiments are only examples. The refrigeration variable control device involved in the present invention is not limited to the various structures recorded in the following embodiments. All other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention.

[0028] Reference Figure 1 and Figure 2The present invention provides a refrigeration variable control device, including a shell component 1, the shell component 1 includes a box shell 101, a refrigerator 102 is installed on the side of the box shell 101, a gas pipeline 103 is installed at the bottom of the refrigerator 102, the other end of the gas pipeline 103 is installed on the side of the ventilation component 3, a biological incubator 2 is installed inside the box shell 101, a ventilation component 3 is installed at the bottom of the biological incubator 2, air guide plates 4 are installed on both sides of the ventilation component 3, an air guide component 5 is installed inside the ventilation component 3, and the box shell 101 is provided with a cooling device 102, a cooling device 102 is installed at the bottom of the cooling device 102, and a cooling device 102 is installed at the bottom of the cooling device 102. A cover plate 105 is installed on the front of the housing 101, a plurality of shock-absorbing rods 104 are installed on the bottom of the housing 101, the biological incubator 2 is installed on the top of the shock-absorbing rods 104, a spring is installed inside the shock-absorbing rods 104, a partition 7 and a glass plate 8 are installed on the top of the biological incubator 2, a shading component 6 is installed on the side of the partition 7, and a display screen 9 is installed on the top of the housing assembly 1. The user adjusts the internal environment by adjusting the adjustment mechanism on the display screen 9, and the user collects various information on the internal temperature and humidity by observing the displayed information on the display screen 9; In this embodiment, it should be specifically explained that: a temperature sensor is installed at the bottom of the partition 7 inside the biological incubator 2, and the temperature sensor is used to collect the internal temperature information of the biological box 201 to form the first judgment information, and the external motor rotation speed at the fan assembly 203 and the output power of the refrigerator 102 are controlled by electrical signals. When the internal temperature is too high, the motor rotation speed is accelerated, and the internal gas circulation efficiency and the refrigeration efficiency are accelerated.

[0029] The main difference between this embodiment and the prior art is that in this embodiment, the electrical signal control of the temperature sensor is used to realize the automatic adjustment of the cold air circulation speed and direction, and the precise control of the temperature balance during the biological cultivation process is realized, specifically, the ventilation component 3, the air guide component 5, and the shading component 6; The above structure is the main structure of this embodiment, which solves the problem that the wind speed and sunlight exposure cannot be automatically controlled, resulting in slow temperature adjustment. It also solves the problem that the observation accuracy cannot be guaranteed. The temperature sensor and the external motor are existing structures. The specific structure and connection method of the external motor are not described in detail in this embodiment.

[0030] Reference Figure 3The biological incubator 2 includes a biological box 201, a ventilation duct 202 is installed on the side of the biological box 201, a ventilation hole corresponding to the wind shield 604 is opened inside the ventilation duct 202, a fan assembly 203 is installed inside the ventilation duct 202, a shock-absorbing sleeve 204 is fixedly connected to the bottom of the biological box 201, and the side of the fan assembly 203 is movably connected to the external motor. When the temperature sensor detects that the temperature of the biological box 201 rises too fast under the action of sunlight, the sensor transmits an electrical signal to the external motor and the refrigerator 102, the rotation speed of the external motor is accelerated, and the output power of the refrigerator 102 is increased.

[0031] In this embodiment, it should be specifically explained that: a glass plate 8 is installed on the top of the biological culture box 2, and the user can observe the growth of the microorganisms inside through the glass plate 8.

[0032] Reference Figure 4-7 The ventilation component 3 includes a ventilation box 301, and a plurality of air pressure arc plates 302 are installed inside the ventilation box 301. A cam shaft 303 is installed on the top of the air pressure arc plate 302, and a gas pressure spring 304 is installed on the arc-shaped back side of the air pressure arc plate 302. An external cam 308 is fixedly connected to the top of the cam shaft 303, and a push rod assembly 305 is installed on one side of the external cam 308. A first main shaft 306 is fixedly connected to the top of the ventilation box 301, and a plurality of culture grooves 307 are provided on the outside of the first main shaft 306. A plurality of fixed grooves are provided on the top of the culture grooves 307, and a plurality of culture dishes are installed inside the fixed grooves. The installation method of the culture dishes belongs to the prior art and is not specifically limited in this application.

[0033] In this embodiment, it should be specifically explained that the push rod assembly 305 is composed of a second spring and a push rod. When the cam shaft 303 drives the outer cam 308 to rotate, the outer cam 308 pushes the push rod to move toward the circular groove 3017. Since the first inclined block 501 is installed inside the circular groove 3017, the movement of the outer cam 308 causes the first inclined block 501 to move upward, thereby realizing automatic adjustment of the gas change control direction.

[0034] Referring to the shading component 6, a first ventilation duct 3013 and a second ventilation duct 3014 are provided inside the ventilation box 301, a plurality of filter air outlets 3015 are provided between the first ventilation duct 3013 and the second ventilation duct 3014, an outer side of the first ventilation duct 3013 is provided with an external air duct 3011 at the gas pressure spring 304, an air inlet 3012 is provided on one side of the first ventilation duct 3013, and a plurality of horizontal air outlets 3016 are provided at the bottom of the air guide plate 4 in the middle of the second ventilation duct 3014, when the square flap 504 pushes the outer edge of the air guide plate 4 to change its angle, the gas entering the second ventilation duct 3014 is discharged outward from the horizontal air outlet 3016 again under the action of the air guide plate 4 with changed angle, and the surface of the culture dish is no longer cooled down, but slides over the upper surface to preferentially cool down the nearby air.

[0035] In this embodiment, it should be specifically explained that: when the internal temperature rises, the circulation rate of the gas is accelerated, the gas entering the air inlet 3012 increases, the internal air pressure of the first ventilation duct 3013 gradually increases, and the gas pushes the air pressure arc plate 302 to move outward to increase the internal space. The rotation of the air pressure arc plate 302 causes the outer edge of the air pressure arc plate 302 to compress the air pressure spring 304, thereby increasing the internal space of the first ventilation duct 3013 and accelerating the filtering effect of the filter air outlet 3015.

[0036] Reference Figure 8 The air guide assembly 5 includes two first inclined blocks 501, the top of the first inclined block 501 is fixedly connected with a first straight rod 502, a plurality of square flaps 504 are installed between the first straight rods 502, the square flaps 504 are installed at the bottom of the air guide plate 4, and a third spring 503 is installed on the outside of the first straight rod 502 and located at the top of the first inclined block 501. When the air pressure arc plate 302 rotates, the outer cam 308 pushes the push rod assembly 305 so that its edge pushes the bottom inclined surface of the first inclined block 501 to make it rise. When the first inclined block 501 rises, the square flap 504 pushes the outer edge of the air guide plate 4 to change its angle. The change in the angle of the air guide plate 4 changes the direction of the gas blown out from the horizontal air outlet 3016, so that the low-temperature gas does not directly cool the surface of the culture dish, but slides over the upper surface to cool the nearby air first, thereby avoiding the cold air directly blown out after the cooling rate increases, causing the temperature of the culture dish to change drastically.

[0037] In this embodiment, it should be specifically explained that: the air guide plate 4 is composed of a rotating plate and a rotating rod. The rotating plate is in an inclined state under normal conditions and is located on the outer surface of the horizontal air outlet 3016. When the square flap 504 rises, the rotating plate rotates around the rotating rod to adjust the angle. The third spring 503 makes the first inclined block 501 always have a tendency to move downward.

[0038] Reference Fig. 9The shading assembly 6 includes a first frame 601, an external connecting shaft 602 is fixedly connected to the bottom of one side of the first frame 601, a fourth spring 603 is installed on the outer side of the external connecting shaft 602, and a windshield 604 is fixedly connected to the side of the external connecting shaft 602. Under normal conditions of low-speed airflow, the first frame 601 is located on the top of the partition 7 under the action of the fourth spring 603, and forms an upper and lower layer relationship with the partition 7, so that the gap between the partitions 7 is increased, and external sunlight shines into the interior through the gap of the partition 7 to supplement sunlight.

[0039] In the present embodiment, it should be specifically explained that: ventilation holes are provided on the side of the wind shield 604, and the ventilation holes are spaced apart from the ventilation holes of the fan assembly 203. When subjected to pressure from the fourth spring 603, the ventilation holes on both sides are closed, and the gas cannot directly enter from one side of the wind shield 604 to the other side. When the air pressure changes, the fourth spring 603 is subjected to pressure, and the gas enters the other side of the wind shield 604 under the action of the pressure difference, causing the first frame 601 to move at the same time.

[0040] Reference Fig.10 The first frame 601 includes an upper slide plate 6011, and lower connecting rods 6012 are fixedly connected to both sides of the bottom of the upper slide plate 6011, and a horizontal connecting rod 6013 is fixedly connected to the bottom of the lower connecting rod 6012. The upper slide plate 6011 is installed on the top of the partition 7, and a water-absorbing brush is installed on the top of the upper slide plate 6011. The high-speed circulation of gas inside the fan assembly 203 causes the wind shield 604 to move, driving the shading assembly 6 to move sideways as a whole. At this time, the upper slide plate 6011 moves from one side of the upper surface of the partition 7 to the other side under the pulling force of the lower connecting rod 6012. The visible gap between the partitions 7 is gradually reduced under the blocking of the upper slide plate 6011, and the sunlight irradiation surface to the interior is greatly reduced, so that the internal cooling effect is better.

[0041] In this embodiment, it should be specifically explained that: a brush installed on the top of the upper slide plate 6011 removes condensed water generated by temperature changes on the glass plate 8 during the movement of the upper slide plate 6011, thereby increasing visibility in a non-enclosed state, so that when the air flow speed decreases, the light transmittance of the glass plate 8 increases, and the user can observe the growth status of internal microorganisms through the glass plate 8, thereby ensuring the accuracy of the observation.

[0042] Working principle of the present invention: The main problem solved by this embodiment is: using the electrical signal control of the temperature sensor to achieve automatic adjustment of the cold air circulation speed and direction, and to achieve precise control of the temperature balance during the biological cultivation process. This solves the current problem that the wind speed and sunlight exposure cannot be automatically controlled, resulting in slow temperature regulation, and also solves the current problem that observation accuracy cannot be guaranteed.

[0043] The specific steps are as follows: When in use, the microorganisms are placed in the culture dish and fixed in each culture tank 307, and then the shell component 1 is placed in the sun, and the external motor connected to the fan component 203 is started. The motor drives the fan component 203 to rotate, and the internal gas of the biological box 201 enters the box shell 101 from the ventilation pipe 202, and enters the ventilation component 3 through the gas pipeline 103 after being cooled by the refrigerator 102. The gas first enters the interior of the first ventilation channel 3013 through the air inlet 3012, and then enters the second ventilation channel 3014 after being filtered by the filter air outlet 3015. After the rising air flow, it is discharged into the interior of the biological box 201 from the horizontal air outlet 3016 to realize the gas cooling cycle. When the gas is discharged through the horizontal air outlet 3016, the gas is deflected downward by the action of the air guide plate 4, and the top of the culture dish is cooled to achieve internal temperature balance; When the temperature sensor detects that the temperature of the biological box 201 rises too fast under the action of sunlight, the sensor transmits an electrical signal to the external motor and the refrigerator 102, the rotation speed of the external motor is accelerated, and the output power of the refrigerator 102 is increased. At this time, the gas circulation rate is accelerated, the gas pressure inside the box shell 101 is enhanced, and the gas entering the air inlet 3012 increases. When the internal air pressure of the first ventilation duct 3013 gradually increases, the gas pushes the air pressure arc plate 302 to move outward to increase the internal space. The rotation of the air pressure arc plate 302 causes the outer edge of the air pressure arc plate 302 to compress the air pressure spring 304, and the internal gas of the external air duct 3011 is output to the outside to achieve independent air pressure balance of the external air duct 3011. When the air pressure arc plate 302 rotates, the cam shaft The top of 303 rotates synchronously under the drive of the air pressure arc plate 302, and the rotation causes the outer cam 308 at the top of the cam shaft 303 to push the push rod assembly 305 to move toward the circular groove 3017, and the other end edge of the push rod assembly 305 pushes the bottom slope of the first inclined block 501 to make it rise. When the first inclined block 501 rises, the square flap 504 pushes the outer edge of the air guide plate 4 to change its angle. At this time, when the gas entering the second ventilation duct 3014 is discharged from the horizontal air outlet 3016 again, it no longer cools the surface of the culture dish under the action of the air guide plate 4 with a changed angle, but slides over the upper surface to cool the nearby air first, thereby avoiding the cold air directly blown out after the cooling rate increases, causing the temperature of the culture dish to change drastically, affecting its growth environment; At the same time, in the circulation process of gas acceleration, the high-speed circulation of gas also drives the wind shield 604 to move to one side of the fan assembly 203. The movement of the wind shield 604 causes the shading assembly 6 to move sideways as a whole. At this time, the upper slide plate 6011 moves from one side of the upper surface of the partition 7 to the other side under the pulling force of the lower connecting rod 6012. Since a brush is installed on the top of the upper slide plate 6011 at this time, during the movement of the upper slide plate 6011, the brush removes the condensed water on the glass plate 8 caused by temperature changes, thereby increasing the visibility of the glass plate 8. In addition, as the upper slide plate 6011 moves, the visible gap between the partitions 7 gradually decreases under the obstruction of the upper slide plate 6011. At this time, the influence of sunlight on the interior is reduced, thereby achieving a better cooling effect inside.

[0044] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A refrigeration variable control device, comprising a housing assembly (1), characterized in that: The housing component (1) comprises a housing (101), a refrigerator (102) is installed on a side surface inside the housing (101), a gas pipeline (103) is installed on the bottom of the refrigerator (102), the other end of the gas pipeline (103) is installed on a side surface of a ventilation component (3), a biological incubator (2) is installed inside the housing (101), a ventilation component (3) is installed on the bottom of the biological incubator (2), air guide plates (4) are installed on both sides of the ventilation component (3), and the interior of the ventilation component (3) is provided with a ventilation system. An air guide component (5) is installed, a cover plate (105) is installed on the front of the box shell (101), a plurality of shock-absorbing support rods (104) are installed on the bottom of the box shell (101), the biological culture box (2) is installed on the top of the shock-absorbing support rods (104), a spring is installed inside the shock-absorbing support rods (104), a partition (7) and a glass plate (8) are installed on the top of the biological culture box (2), a shading component (6) is installed on the side of the partition (7), and a display screen (9) is installed on the top of the shell component (1); The ventilation assembly (3) comprises a ventilation box (301), a plurality of air pressure arc plates (302) are installed inside the ventilation box (301), a cam shaft (303) is installed on the top of the air pressure arc plate (302), an air pressure spring (304) is installed on the curved back side of the air pressure arc plate (302), an external cam (308) is fixedly connected to the top of the cam shaft (303), a push rod assembly (305) is installed on one side of the external cam (308), a first main shaft (306) is fixedly connected to the top of the ventilation box (301), and a plurality of culture grooves (307) are provided on the outer side of the first main shaft (306).

2. A refrigeration variable control device according to claim 1, characterized in that: A first ventilation duct (3013) and a second ventilation duct (3014) are provided inside the ventilation box (301), a plurality of filter air outlets (3015) are provided between the first ventilation duct (3013) and the second ventilation duct (3014), an external air duct (3011) is provided on the outside of the first ventilation duct (3013) at the gas pressure spring (304), an air inlet (3012) is provided on one side of the first ventilation duct (3013), and a plurality of horizontal air outlets (3016) are provided in the middle of the second ventilation duct (3014) at the bottom of the air guide plate (4).

3. A refrigeration variable control device according to claim 1, characterized in that: The biological culture box (2) comprises a biological box body (201), a ventilation pipe (202) is installed on the side of the biological box body (201), a ventilation hole corresponding to the wind shield (604) is opened inside the ventilation pipe (202), a shock-absorbing sleeve (204) is fixedly connected to the bottom of the biological box body (201), a fan assembly (203) is installed inside the ventilation pipe (202), and the side of the fan assembly (203) is movably connected to an external motor.

4. A refrigeration variable control device according to claim 1, characterized in that: The air guide assembly (5) comprises two first inclined blocks (501), the top of the first inclined blocks (501) being fixedly connected to a first straight rod (502), a plurality of square flaps (504) being installed between the first straight rods (502), the square flaps (504) being installed at the bottom of the air guide plate (4), and a third spring (503) being installed outside the first straight rod (502) and at the top of the first inclined blocks (501).

5. The refrigeration variable control device according to claim 1, characterized in that: The shading assembly (6) comprises a first frame (601), the bottom of one side of the first frame (601) is fixedly connected to an external connection shaft (602), a fourth spring (603) is installed on the outside of the external connection shaft (602), and a windshield (604) is fixedly connected to the side of the external connection shaft (602). Under normal conditions of low-speed airflow, the first frame (601) is located on the top of the partition (7) under the action of the fourth spring (603), and a ventilation hole is opened on the side of the windshield (604), and the ventilation hole is spaced apart from the ventilation hole of the fan assembly (203).

6. A refrigeration variable control device according to claim 5, characterized in that: The first frame (601) comprises an upper slide plate (6011), lower connecting rods (6012) are fixedly connected to both sides of the bottom of the upper slide plate (6011), and a horizontal connecting rod (6013) is fixedly connected to the bottom of the lower connecting rod (6012), the upper slide plate (6011) is mounted on the top of the partition (7), and a water-absorbing brush is mounted on the top of the upper slide plate (6011).

7. The refrigeration variable control device according to claim 1, characterized in that: A temperature sensor is installed at the bottom of the partition (7) inside the biological incubator (2), and the temperature sensor is used to collect temperature information inside the biological box (201), form first judgment information, and control the rotation speed of the external motor at the fan assembly (203) and the output power of the refrigerator (102) through electrical signals.

8. The refrigeration variable control device according to claim 1, characterized in that: The push rod assembly (305) is composed of a second spring and a push rod. A plurality of fixed grooves are provided on the top of the culture groove (307), and a plurality of culture dishes are installed inside the fixed grooves.

9. The refrigeration variable control device according to claim 1, characterized in that: The air guide plate (4) consists of a rotating plate and a rotating rod.

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