A dual channel reversing temperature control ventilation device and method of use thereof

Abstract

The application discloses a double-channel reversing temperature-regulating ventilation device and a use method thereof, which comprises a box body, the box body comprises a top plate, side plates and a bottom plate, a first air inlet is arranged on the top plate, and a second air inlet, a third air inlet and a fourth air inlet are arranged on the bottom plate; a transmission shaft is arranged in the box body; a motor is connected with the transmission shaft; a channel device comprises a transmission block, the transmission block is sleeved on the transmission shaft through thread cooperation, a reinforcing frame is connected to the transmission block, a ventilation cover is arranged on the reinforcing frame, and the ventilation cover is connected with the bottom plate through a guide rail. The application has the advantages that the requirement for the fan is reduced, compared with the pre-blowing mode in winter, the heat exchange temperature difference is increased after blowing in winter, the unit capacity, volume and power consumption are further reduced, the situation that the use demand in winter is much larger than that in summer does not occur, and the type selection and design of the temperature-regulating unit are more reasonable.

Description

Technical Field

[0001] The present invention relates to the technical field of mechanical manufacturing and temperature-regulating ventilation equipment, and in particular to a dual-channel reversing temperature-regulating ventilation device and a method of using the same. Background Art

[0002] Currently, containerized launch platforms are a crucial component of rocket launches. Integrating the rocket launch system, these platforms can simplify transportation, storage, and launch, and can reach lengths exceeding 20 meters. However, temperature control within the container presents challenges due to the varying temperature requirements of various rocket components.

[0003] The temperature requirement at the front fairing of the rocket is 10-20°C, and 10-30°C at the rear fairing. In the past, container temperature control systems mostly used a front-mounted temperature control unit, with air ducts arranged along the length of the box, with air blowing from the front and returning from the rear. This method can easily meet the temperature index requirements in the summer, with the lowest supply air temperature of 10°C, the highest return air temperature of 30°C, and the maximum supply and return air temperature difference of 20°C; however, when adjusting the temperature in winter, the front-to-back blowing method will cause problems. Since the maximum temperature at the front of the rocket does not exceed 20°C, the maximum supply air temperature is 20°C, the minimum return air temperature is 10°C, and the supply and return air temperature difference is only 10°C. The maximum supply and return air temperature difference in winter is much lower than in summer, which will result in a particularly large winter air volume. The mismatch between winter and summer air volumes makes it difficult to select fans.

[0004] In existing technology, the temperature control unit is placed at the front of the container, with air ducts arranged along the length of the container, supplying air from the front and returning it from the rear. This solution results in significantly greater airflow in winter than in summer, making it difficult to select the right fan. Alternatively, the temperature control unit is placed at the front and rear of the container, with both units simultaneously controlled. However, during a rocket launch, the high-temperature exhaust from the thrusters could damage the temperature control unit at the rear of the container, causing economic losses.

[0005] In summary, placing the temperature control unit at the front of the container, with air ducts running along the length of the container, with air supplied from the front and returned from the rear, will result in a much larger air supply in winter than in summer, making it difficult to select a fan. Placing the units at the front and rear of the container, with temperature control simultaneously at both ends, will cause the high-temperature tail flame ejected by the thrusters to damage the temperature control unit at the rear of the container during rocket launch, resulting in economic losses. There is a need for temperature control with inconsistent temperature indicators at the front and rear of the container launch platform. The current "front-blowing, rear-returning" temperature control method results in a large difference in the demand for temperature control units in winter and summer, and the large difference in air volume makes fan selection difficult. Summary of the Invention

[0006] The main purpose of the present invention is to provide a dual-channel reversing temperature-control ventilation device and its use method, so as to solve the problem in the prior art that a temperature-control unit is arranged at the front of the container, and air ducts are arranged along the length of the container, with air supplied from the front and air returned from the rear. This solution will cause the air supply volume in winter to be much larger than that in summer, which will cause difficulties in the selection of fans. The units are arranged at the front and rear of the container respectively, and the front and rear are temperature-controlled at the same time. In this solution, when the rocket is launched, the high-temperature tail flame ejected by the thruster will destroy the temperature-control unit at the rear of the container, causing economic losses. There is a temperature control demand for inconsistent temperature indicators before and after the container launch platform. The current "front blowing, rear return" temperature control method causes large differences in the demand for temperature-control units in winter and summer, and the large difference in air volume causes difficulties in fan selection.

[0007] In order to achieve the above object, according to one aspect of the present invention, a dual-channel reversing temperature-regulating ventilation device is provided, comprising:

[0008] A box body, the box body comprising a top plate, side plates and a bottom plate, the top plate being provided with a first air outlet, the bottom plate being provided with a second air outlet, a third air outlet and a fourth air outlet;

[0009] A transmission shaft, wherein the transmission shaft is arranged in the box;

[0010] a motor connected to the transmission shaft; and

[0011] The channel device includes a transmission block, which is sleeved on the transmission shaft through threaded fitting. The transmission block is connected to a reinforcement frame, and a ventilation hood is provided on the reinforcement frame. The ventilation hood is connected to the base plate through a guide rail.

[0012] Preferably, the transmission shaft is provided with an external thread, the transmission block is provided with a threaded hole, and the threaded hole is provided with an internal thread. The external thread cooperates with the internal thread, and threaded transmission is performed between the transmission shaft and the transmission block through threaded cooperation. The rotation of the transmission shaft is converted into movement of the transmission block through threaded transmission, thereby driving the ventilation hood to switch on the air outlet, realizing the change of the blowing direction, and adjusting the temperature by supplying air to the front in summer and to the back in winter.

[0013] Preferably, when the motor is working, the motor drives the transmission shaft to rotate, the transmission shaft drives the transmission block to move, and the transmission block drives the ventilation hood to move left and right on the guide rail to switch the ventilation direction, and the wind direction switching is achieved by the movement of the ventilation hood.

[0014] Preferably, when the ventilation hood moves to the side close to the fourth air outlet, the fourth air outlet is connected to the third air outlet, and the first air outlet is connected to the second air outlet. For temperature control and ventilation in winter, the motor rotates to drive the drive shaft to rotate, and the drive shaft drives the ventilation hood to move to the side close to the fourth air outlet through the transmission block, so that the first air outlet and the second air outlet are connected, and at the same time the fourth air outlet and the third air outlet are connected. The hot air from the temperature control unit is sent into the air duct leading to the tail of the container through the fourth air outlet and the third air outlet, and is heated in the form of subsequent air supply. After heat exchange, the air is sucked back by the air duct at the front of the container, and returns to the temperature control unit through the first air outlet and the second air outlet to complete the cycle.

[0015] Preferably, when the ventilation hood moves to the side close to the second air outlet, the first air outlet is connected to the fourth air outlet, and the second air outlet is connected to the third air outlet. In summer, for temperature control and ventilation, the motor rotates to drive the transmission shaft to rotate, and the transmission shaft drives the ventilation hood to move to the side close to the second air outlet through the transmission block, so that the third air outlet and the second air outlet are connected, and at the same time, the first air outlet and the fourth air outlet are connected, and the cold air from the temperature control unit is sent into the air duct leading to the front of the box through the fourth air outlet and the first air outlet, and is cooled in the form of front air supply. After heat exchange, the air is sucked back by the air duct at the rear of the box, and returns to the temperature control unit through the third air outlet and the second air outlet to complete the cycle.

[0016] Preferably, the box body further includes a front panel and a rear panel, and the top panel, bottom panel, side panels, front panel and rear panel constitute a closed box structure, forming an air supply closed cavity structure.

[0017] Preferably, the first air outlet and the third air outlet are respectively connected to air ducts for achieving return air.

[0018] Preferably, the second air outlet and the fourth air outlet are connected to the temperature regulating unit respectively for realizing air supply,

[0019] Preferably, the motor is arranged in a motor box for fixing the motor.

[0020] According to another aspect of the present invention, a method for using a dual-channel reversing temperature-regulating ventilation device is provided, comprising:

[0021] In the summer, the temperature-controlled ventilation method is as follows: the rotation of the motor drives the transmission shaft to rotate, and the transmission shaft drives the ventilation hood to move to the side close to the second air outlet through the transmission block, so that the third air outlet and the second air outlet are connected, and the first air outlet and the fourth air outlet are connected at the same time. The cold air from the temperature-controlled unit is sent into the air duct leading to the front of the box through the fourth air outlet and the first air outlet, and is cooled in the form of front air supply. After heat exchange, the air is sucked back by the air duct at the rear of the box, and returns to the temperature-controlled unit through the third air outlet and the second air outlet to complete the cycle.

[0022] Winter temperature control ventilation method: the motor rotates to drive the drive shaft, and the drive shaft drives the ventilation hood to move to the side close to the fourth air outlet through the transmission block, so that the first air outlet and the second air outlet are connected, and the fourth air outlet and the third air outlet are connected at the same time. The hot air from the temperature control unit is sent into the air duct leading to the tail of the container through the fourth air outlet and the third air outlet, and is heated in the form of subsequent air supply. After heat exchange, the air is sucked back by the air duct at the front of the container and returns to the temperature control unit through the first air outlet and the second air outlet to complete the cycle.

[0023] The technical solution of the present invention is applied, through the temperature control mode of front air supply in summer and rear air supply in winter, the blowing direction is changed through the dual-channel reversing temperature control ventilation device, wherein in summer temperature control ventilation, the transmission shaft is driven to rotate by the rotation of the motor, and the transmission shaft drives the ventilation hood to move to the side close to the second air outlet through the transmission block, so that the third air outlet and the second air outlet are connected, and the first air outlet and the fourth air outlet are connected, and the cold air from the temperature control unit is sent into the air duct leading to the front of the box through the fourth air outlet and the first air outlet, and is cooled in the form of front air supply. After heat exchange, the air is sent to the rear of the box The air is drawn back through the duct and returns to the temperature control unit through the third and second air outlets, completing the cycle. For winter temperature control ventilation, the motor rotates the drive shaft, which, through a transmission block, drives the ventilation hood to the side near the fourth air outlet, connecting the first and second air outlets. Simultaneously, the fourth and third air outlets are connected. Hot air from the temperature control unit is sent through the fourth and third air outlets into the air duct leading to the rear of the container, where it is heated as a rear air supply. After heat exchange, the air is drawn back through the air duct at the front of the container and returns to the temperature control unit through the first and second air outlets, completing the cycle. The temperature control unit with both front and rear air blowing has a maximum inlet and outlet temperature difference of 20°C, balancing the temperature control pressure of the container launch platform in winter and summer and reducing the requirements for the fan. Compared to the front blowing method in winter, the rear blowing method has a larger heat exchange temperature difference in winter, further reducing the unit's capacity, volume, and power consumption. This prevents winter demand from being much greater than summer demand, making the selection and design of the temperature control unit more reasonable. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings, which constitute part of this application, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an undue limitation of the present invention. In the accompanying drawings:

[0025] Figure 1 It shows a schematic structural diagram of a dual-channel reversing temperature regulating ventilation device according to the present invention;

[0026] Figure 2 Shown Figure 1 A front view of a dual-channel reversing temperature-regulating ventilation device;

[0027] Figure 3 Shown Figure 1The front blowing and rear return air status view of the dual-channel reversing temperature-controlled ventilation device;

[0028] Figure 4 Shown Figure 1 The rear air blowing and front air return status view of the dual-channel reversing temperature-controlled ventilation device;

[0029] Figure 5 Shown Figure 1 Channel device structure view of the dual-channel reversing temperature-control ventilation device.

[0030] The above drawings include the following reference numerals:

[0031] Rear panel 1; side panel 2; transmission shaft 3; top panel 4; first air outlet 5; transmission block 6; motor box 7; ventilation cover 8; second air outlet 9; reinforcement frame 10; third air outlet 11; bottom panel 12; guide rail 13; fourth air outlet 14; box body 15. DETAILED DESCRIPTION

[0032] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0033] like Figures 1 to 5 As shown, an embodiment of the present invention provides a dual-channel reversing temperature-regulating ventilation device, including a box body 15, wherein the box body 15 includes a top plate 4, a side plate 2 and a bottom plate 12, the top plate 4 is provided with a first air outlet 5, the bottom plate 12 is provided with a second air outlet 9, a third air outlet 11 and a fourth air outlet 14, a transmission shaft 3, the transmission shaft 3 is arranged in the box body 15, a motor, the motor is connected to the transmission shaft 3; a channel device, the channel device includes a transmission block 6, the transmission block 6 is mounted on the transmission shaft 3 through a threaded fitting, a reinforcement frame 10 is connected to the transmission block 6, a ventilation hood 8 is provided on the reinforcement frame 10, and the ventilation hood 8 is connected to the bottom plate 12 through a guide rail 13.

[0034] In this embodiment, the box body 15 includes a top plate 4, side plates 2 and a bottom plate 12. The box body 15 also includes a front panel and a rear panel 1. The top plate 4, bottom plate 12, side plates 2, front panel and rear panel 1 constitute a closed structure of the box body 15. The box body 15 constitutes a closed cavity structure, which is used to accommodate a channel device and realize that the channel device converts the wind direction in the box body 15. A first air outlet 5 is provided on the top plate 4. The first air outlet 5 is used to connect the air duct to realize front return air and front supply air. It is used for front supply air in summer and for front return air in winter. A second air outlet 9, a third air outlet 11 and a fourth air outlet 14 are provided on the bottom plate 12. The second air outlet 9 is used for unit return air, the third air outlet 11 is used for rear return air and rear supply air, which is used for rear return air in summer and for rear supply air in winter. The fourth air outlet 14 is used for unit supply air and is connected to the temperature control unit. In this embodiment, the transmission shaft 3 is arranged in the box body 15, and the transmission shaft 3 is connected to the box body 15 by a rotating bearing. The transmission shaft 3 is provided with an external thread, and the transmission block 6 is provided with a threaded hole. The threaded hole is provided with an internal thread, and the external thread cooperates with the internal thread. The transmission shaft 3 and the transmission block 6 are threadedly matched to perform threaded transmission. The rotation of the transmission shaft 3 is converted into the movement of the transmission block 6 through threaded transmission, thereby driving the ventilation hood 8 to switch on the air outlet, realizing the change of the blowing direction, and adjusting the temperature by supplying air to the front in summer and to the back in winter.

[0035] In this embodiment, the motor is connected to the transmission shaft 3. When the motor is working, the motor drives the transmission shaft 3 to rotate, and the transmission shaft 3 drives the transmission block 6 to move. The transmission block 6 drives the ventilation hood 8 to move left and right on the guide rail 13 to switch the ventilation direction. The motor is set in the motor box 7. Specifically, in summer temperature control ventilation, the rotation of the motor drives the transmission shaft 3 to rotate. The transmission shaft 3 drives the ventilation hood 8 to move to the side close to the second air outlet 9 through the transmission block 6, so that the third air outlet 11 and the second air outlet 9 are connected. At the same time, the first air outlet 5 and the fourth air outlet 14 are connected. The cold air from the temperature control unit is sent to the air duct leading to the front of the box body 15 through the fourth air outlet 14 and the first air outlet 5. It is cooled in the form of front air supply. After heat exchange, the air is sucked back by the air duct at the rear of the box body 15 and returns to the temperature control unit through the third air outlet 11 and the second air outlet 9, completing the cycle. In winter, when adjusting the temperature and ventilation, the motor rotates to drive the transmission shaft 3, and the transmission shaft 3 drives the ventilation hood 8 to move to the side close to the fourth air outlet 14 through the transmission block 6, so that the first air outlet 5 and the second air outlet 9 are connected, and the fourth air outlet 14 and the third air outlet 11 are connected. The hot air from the temperature control unit is sent into the air duct leading to the tail of the container through the fourth air outlet 14 and the third air outlet 11, and is heated in the form of subsequent air supply. After heat exchange, the air is sucked back by the air duct at the front of the container and returns to the temperature control unit through the first air outlet 5 and the second air outlet 9 to complete the cycle.

[0036] In this embodiment, the channel device includes a transmission block 6, which is sleeved on the transmission shaft 3 through a threaded fit, and a reinforcement frame 10 is connected to the transmission block 6. The reinforcement frame 10 is provided with a ventilation hood 8, and the ventilation hood 8 is connected to the base plate 12 through a guide rail 13. When the ventilation hood 8 moves to the side close to the fourth air outlet 14, the fourth air outlet 14 is connected to the third air outlet 11, and the first air outlet 5 is connected to the second air outlet 9. When the ventilation hood 8 moves to the side close to the second air outlet 9, the first air outlet 5 is connected to the fourth air outlet 14, and the second air outlet 9 is connected to the third air outlet 11. The first air outlet 5 and the third air outlet 11 are respectively connected to the air duct. The second air outlet 9 and the fourth air outlet 14 are respectively connected to the temperature control unit. The structure of the channel device is as shown in FIG. Figure 4 As shown, it consists of a transmission block 6, a reinforcement frame 10, and a ventilation hood 8. The transmission block 6 is welded to the reinforcement frame 10 and the ventilation hood 8, and is used to transmit the force of the transmission shaft 3, driving the ventilation hood 8 to move left and right; the reinforcement frame 10 is used to increase the overall strength; the ventilation hood 8 is used to switch the ventilation channel. When the ventilation hood 8 is on the right side, the third air outlet 11 and the second air outlet 9 are connected, and the air does not circulate with the first air outlet 5 and the fourth air outlet 14. Therefore, the air supply of the environmental control unit can only come out from the first air outlet 5, forming a front air supply. When the ventilation hood 8 is on the left side, the fourth air outlet 14 and the third air outlet 11 are connected, and the air does not circulate with the first air outlet 5 and the second air outlet 9. Therefore, the air supply of the environmental control unit can only come out from the fourth air outlet 14, forming a rear air supply.

[0037] In this embodiment, a dual-channel reversing temperature-regulating ventilation device can change the air supply direction according to the temperature regulation requirements in winter and summer. Figure 1 The internal structure is shown in the figure. Figure 2 As shown, the first air outlet 5 and the third air outlet 11 are connected to the air duct for supply and return air, and the fourth air outlet 14 and the second air outlet 9 are connected to the temperature control unit. The dual-channel reversing temperature control ventilation device consists of a top plate 4, a bottom plate 12, a side plate 2, a front panel, a rear panel 1, a frame, a transmission shaft 3, a motor box 7, a channel, and a guide rail 13. When the motor is working, the transmission shaft 3 rotates, which can drive the channel to move left and right on the guide rail 13, thereby achieving the effect of switching the ventilation direction. Summer temperature control ventilation method is as follows Figure 3 As shown, the channel device is moved to the right by the motor through the transmission shaft 3, so that the third air outlet 11 and the second air outlet 9 are connected, and the first air outlet 5 and the fourth air outlet 14 are connected. The cold air from the temperature control unit is sent to the air duct leading to the front of the container through the fourth air outlet 14 and the first air outlet 5, and is cooled in the form of forward air supply. After heat exchange, the air is sucked back by the air duct at the rear of the container and returns to the temperature control unit through the third air outlet 11 and the second air outlet 9, completing the cycle. Winter temperature control ventilation method is as follows Figure 4As shown, the channel device is moved to the left by the motor via the drive shaft 3, connecting the first and second air vents 5 and 9, and the fourth and third air vents 14 and 11. Hot air from the temperature control unit is fed through the fourth and third air vents 14 and 11 into the air duct leading to the rear of the container, where it is heated by subsequent air supply. After heat exchange, the air is drawn back through the air duct at the front of the container, passing through the first and second air vents 5 and 9, and then returns to the temperature control unit, completing the cycle.

[0038] Another embodiment of the present invention provides a method for using a dual-channel reversing temperature-regulating ventilation device, including a summer temperature-regulating ventilation method, wherein the motor rotates to drive the transmission shaft 3 to rotate, and the transmission shaft 3 drives the ventilation hood 8 to move to the side close to the second air outlet 9 through the transmission block 6, so that the third air outlet 11 and the second air outlet 9 are connected, and at the same time the first air outlet 5 and the fourth air outlet 14 are connected, and the cold air from the temperature-regulating unit is sent into the air duct leading to the front of the box body 15 through the fourth air outlet 14 and the first air outlet 5, and is cooled in the form of front air supply. After heat exchange, the air is sucked back by the air duct at the rear of the box body 15, and is sent through the third air outlet 11 and the first air outlet 5. The second air outlet 9 returns to the temperature control unit to complete the cycle; in the winter temperature control ventilation method, the motor rotates to drive the transmission shaft 3 to rotate, and the transmission shaft 3 uses the transmission block 6 to drive the ventilation hood 8 to move to the side close to the fourth air outlet 14, so that the first air outlet 5 and the second air outlet 9 are connected, and the fourth air outlet 14 and the third air outlet 11 are connected. The hot air from the temperature control unit is sent into the air duct leading to the tail of the container through the fourth air outlet 14 and the third air outlet 11, and is heated in the form of subsequent air supply. After heat exchange, the air is sucked back by the air duct at the front of the container and returns to the temperature control unit through the first air outlet 5 and the second air outlet 9 to complete the cycle.

[0039] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:

[0040] The air blowing direction is changed by the temperature control method of supplying air in front in summer and supplying air in back in winter, and the double-channel reversing temperature control ventilation device is used to realize the conversion of the blowing direction. In the summer temperature control ventilation, the transmission shaft 3 is driven to rotate by the rotation of the motor, and the transmission shaft 3 drives the ventilation hood 8 to move to the side close to the second air outlet 9 through the transmission block 6, so that the third air outlet 11 and the second air outlet 9 are connected. At the same time, the first air outlet 5 and the fourth air outlet 14 are connected. The cold air from the temperature control unit is sent into the air duct leading to the front of the box 15 through the fourth air outlet 14 and the first air outlet 5, and is cooled in the form of the previous air supply. After heat exchange, the air is sucked back by the air duct at the tail of the box 15 and is passed through the first air outlet 14. The third air outlet 11 and the second air outlet 9 return to the temperature control unit to complete the cycle. For temperature control and ventilation in winter, the motor rotates to drive the drive shaft 3, and the drive shaft 3 drives the ventilation hood 8 to move to the side close to the fourth air outlet 14 through the transmission block 6, so that the first air outlet 5 and the second air outlet 9 are connected. At the same time, the fourth air outlet 14 and the third air outlet 11 are connected. The hot air from the temperature control unit is sent into the air duct leading to the tail of the container through the fourth air outlet 14 and the third air outlet 11, and is heated in the form of subsequent air supply. After heat exchange, the air is sucked back by the air duct at the front of the container and returns to the temperature control unit through the first air outlet 5 and the second air outlet 9 to complete the cycle. The maximum inlet and outlet temperature difference of the temperature control unit with front blowing and rear blowing modes is 20℃, which balances the temperature control pressure of the container launch platform in winter and summer and reduces the requirements for the fan. Compared with the front blowing mode in winter, the heat exchange temperature difference of the rear blowing mode in winter is increased, which will further reduce the capacity, volume and power consumption of the unit. The situation where the demand for use in winter is much greater than that in summer will not occur, making the selection and design of the temperature control unit more reasonable.

[0041] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. A dual-channel reversing temperature regulating ventilation device, characterized in that: include: A box body, the box body comprising a top plate, side plates and a bottom plate, the top plate being provided with a first air outlet, the bottom plate being provided with a second air outlet, a third air outlet and a fourth air outlet; A transmission shaft, wherein the transmission shaft is arranged in the box; a motor connected to the transmission shaft; and A channel device, the channel device includes a transmission block, the transmission block is mounted on the transmission shaft through a threaded fit, the transmission block is connected to a reinforcement frame, the reinforcement frame is provided with a ventilation hood, the ventilation hood is connected to the base plate through a guide rail, the ventilation hood moves left and right on the guide rail to switch the ventilation direction, when the ventilation hood moves to the side close to the fourth air outlet, the fourth air outlet is connected to the third air outlet, and the first air outlet is connected to the second air outlet; when the ventilation hood moves to the side close to the second air outlet, the first air outlet is connected to the fourth air outlet, and the second air outlet is connected to the third air outlet.

2. The dual-channel reversing temperature regulating ventilation device according to claim 1, characterized in that: The transmission shaft is provided with an external thread, the transmission block is provided with a threaded hole, the threaded hole is provided with an internal thread, and the external thread cooperates with the internal thread.

3. The dual-channel reversing temperature regulating ventilation device according to claim 1, characterized in that: When the motor is working, the motor drives the transmission shaft to rotate, the transmission shaft drives the transmission block to move, and the transmission block drives the ventilation hood to move left and right on the guide rail to switch the ventilation direction.

4. The dual-channel reversing temperature regulating ventilation device according to claim 1, characterized in that: The box body further comprises a front panel and a rear panel, and the top panel, bottom panel, side panels, front panel and rear panel constitute a closed structure of the box body.

5. The dual-channel reversing temperature regulating ventilation device according to claim 1, characterized in that: The first air outlet and the third air outlet are connected to air ducts respectively.

6. The dual-channel reversing temperature regulating ventilation device according to claim 1, characterized in that: The second air outlet and the fourth air outlet are respectively connected to temperature regulating units.

7. The dual-channel reversing temperature regulating ventilation device according to claim 1, characterized in that: The motor is arranged in a motor box.

8. A method for using a dual-channel reversing temperature-regulating ventilation device, based on the dual-channel reversing temperature-regulating ventilation device according to any one of claims 1 to 7, characterized in that: include: In the summer, the temperature-controlled ventilation method is as follows: the motor rotates to drive the transmission shaft, which drives the ventilation hood to move to the side close to the second air outlet through the transmission block, so that the third air outlet and the second air outlet are connected, and the first air outlet and the fourth air outlet are connected at the same time. The cold air from the temperature-controlled unit is sent into the air duct leading to the front of the box through the fourth air outlet and the first air outlet, and is cooled in the form of front air supply. After heat exchange, the air is sucked back by the air duct at the rear of the box and returns to the temperature-controlled unit through the third air outlet and the second air outlet, completing the cycle. Winter temperature control ventilation method: the motor rotates to drive the drive shaft, and the drive shaft drives the ventilation hood to move to the side close to the fourth air outlet through the transmission block, so that the first air outlet and the second air outlet are connected, and the fourth air outlet and the third air outlet are connected at the same time. The hot air from the temperature control unit is sent into the air duct leading to the tail of the container through the fourth air outlet and the third air outlet, and is heated in the form of subsequent air supply. After heat exchange, the air is sucked back by the air duct at the front of the container and returns to the temperature control unit through the first air outlet and the second air outlet to complete the cycle.

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