High-performance constant-temperature gas source box and operation method thereof

Abstract

The invention discloses a high-performance constant-temperature air source box and a control method thereof.The high-performance constant-temperature air source box comprises a box body used for storing and protecting an internal installation structure, and a valve terminal controller is detachably installed at the position, close to the bottom, in the box body and used for distributing entering compressed air; the constant temperature unit is detachably installed at the inner bottom of the box body and used for controlling the temperature of the space in the box body in real time, and the temperature sensor is installed at the position, close to the middle, of the inner side wall of the box body and used for detecting the temperature of the space in the box body in real time. The constant-temperature unit is additionally arranged in the air source box, so that the constant-temperature unit can control the temperature in the air source box in real time according to a set threshold value, elements in the air source box can be kept at the conventional temperature for use for a long time, the service life of the air source box is prolonged, and the service life of the air source box is prolonged. And the sealing problem caused by regularly opening the gas source box for maintenance by a worker is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of gas source box applications, and in particular to a high-performance constant-temperature gas source box and a control method thereof. Background Art

[0002] The gas source box is a device used for centralized management and distribution of gas. It is widely used in many fields and is usually composed of a box, valves, pipes, etc. The gas source box has a compact and reasonable structural design, which can save space and facilitate installation and maintenance. At the same time, its internal layout is reasonable to ensure the stable supply and distribution of gas.

[0003] When the existing gas source box is in use, it is generally sealed, and the temperature inside the gas source box generally changes according to the changes in the external environment, which will cause varying degrees of damage to the internal components, thereby reducing the service life of the gas source box. In addition, the traditional gas source box needs to be opened and maintained regularly, and it is not possible to directly observe from the outside whether it is needed, thereby increasing the maintenance cost. Therefore, the present invention proposes a high-performance constant temperature gas source box and a control method thereof. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a high-performance constant temperature gas source box and its control method. By adding a constant temperature unit inside the gas source box, the temperature inside the gas source box can be controlled in real time according to the set threshold, so that the components inside the gas source box can be kept at a normal temperature for a long time, thereby increasing the service life of the gas source box and reducing the sealing problems caused by staff regularly opening the gas source box for maintenance.

[0005] In order to solve the above technical problems, a technical solution adopted by the present invention is: providing a high-performance constant temperature gas source box, including a box body, for storing and protecting the internal installation structure; A box door, the side wall of which is hingedly connected to the front wall of the box body, and is used to seal the front position of the box body; A valve island controller, which is detachably mounted inside the box near the bottom and is used to distribute the incoming compressed air; A wire rack, which is bolted to the inside of the box near the middle and is used to organize the wire harness arranged inside; A constant temperature unit, which is detachably mounted at the bottom of the box and is used to control the temperature of the space inside the box in real time; The temperature sensor is installed on the inner wall of the box body near the middle, and is used for real-time detection of the temperature of the inner space of the box body.

[0006] The present invention is further configured as follows: a plurality of pipe holes are opened at the bottom of the box body, and the inner walls of the pipe holes are provided with protective covers; a plurality of ventilation grooves are evenly opened on the side walls of the box body near the bottom, and dustproof nets are bolted to the ventilation grooves.

[0007] Through the above technical solution, the air pipe that is convenient for external entry can be sealed and fixed inside the pipe hole, and the Russian-Japanese ventilation grooves facilitate the circulation and discharge of internal air, thereby facilitating the conversion of air inside the box.

[0008] The present invention is further configured as follows: a visual window is provided on the front wall of the box door near the top, a touch panel is installed in the middle of the front wall of the box door, and is electrically connected to the internal valve island controller, constant temperature unit and temperature sensor, and a handle is provided on the front wall of the box door near the middle of the side wall.

[0009] Through the above technical solution, the valve island controller, the constant temperature unit and the temperature sensor can be controlled by using the touch panel to achieve constant temperature control in the box, and the box door can be sealed and connected to the box body by using the handle.

[0010] The present invention is further configured as follows: the constant temperature unit includes a detachable duct frame installed on the top of the box body, the top of the duct frame is movably connected with a swing mechanism, a connecting pipe is connected to the middle position of the rear wall of the duct frame, the end face of the connecting pipe is threadedly connected to a heating component, and the end face of the heating structure is threadedly connected to a filter component.

[0011] Through the above technical scheme, the filter assembly can be used to filter the incoming air to prevent particulate dust from entering the interior of the box, and the incoming air can be heated under the action of the heating structure to increase the temperature of the box. Finally, the air can be circulated evenly through the swing mechanism to avoid damage to components in a certain place.

[0012] The present invention is further configured as follows: a plurality of ventilation holes are symmetrically provided on the side wall of the air duct frame, and the plurality of ventilation holes are all arranged obliquely from top to bottom.

[0013] Through the above technical solution, the air entering the air duct frame can quickly circulate obliquely downward on both sides, thereby achieving a ventilation effect inside the box.

[0014] The present invention is further configured as follows: the swing mechanism includes a plurality of swing blades rotatably connected to the inner wall of the duct frame near the bottom, the end faces of the plurality of swing blades are movably connected to a connecting rod, wherein the swing blade located in the middle extends out of the duct frame away from the end face of the connecting rod, and a connecting gear is installed on the end face, the outer wall of the connecting gear is meshingly connected with a gear rack, the gear rack is installed at the middle position of the side wall of the duct frame through a positioning shaft that is interference-connected in the middle, the end face of the positioning shaft is interference-connected with a driven gear, and the outer wall of the driven gear is meshingly connected with a driving gear installed on the driving end of the driving motor.

[0015] Through the above technical solution, the drive motor is started, and its drive shaft drives the drive gear on the end surface to rotate, so that the driven gear drives the gear rack to rotate, so that the two-part gear blocks arranged inside drive the connecting gear back and forth, so that the swing blades rotating on the air duct rack swing as a whole through the connecting rods on the end surface, realizing the change of wind direction, so that the air entering from the outside flows into the interior of the box evenly from top to bottom.

[0016] The present invention is further configured as follows: the meshing tooth block of the interior of the gear rack and the connecting gear is divided into two parts, one part is arranged in the middle position of the gear rack, and the other part is arranged on the inner wall of the gear rack, and the two parts of the tooth block are respectively in contact with the outer wall of the connecting gear.

[0017] Through the above technical solution, during the rotation of the rack, the connecting gear can be reciprocated by the two-part bite block.

[0018] The present invention is further configured as follows: the heating assembly includes an outer tube, a fan is installed on the inner wall of the outer tube near the end surface, a fixing frame is installed on the inner wall of the outer tube away from the fan, and a plurality of heating rods and cooling tubes are installed inside the fixing frame.

[0019] Through the above technical scheme, starting the fan can quickly blow external air into the interior of the box, and the heating rod is opened and closed according to the data after detection and processing. When the heating rod is turned on, the inside of the box can be heated. When the heating rod is turned off and cooling water is introduced into the cooling pipe, cold air can be blown into the box, thereby realizing air conversion and circulation and reducing the air temperature in the box.

[0020] The present invention is further configured as follows: the filter assembly comprises a filter tube, filter cotton is inserted into the interior of the filter tube, and a filter mesh sleeve is sleeved on the end surface of the filter tube.

[0021] Through the above technical solution, the external air first passes through the filter mesh sleeve in the filter assembly to pre-fix large particles, and then after passing through the filter cotton, the dust and fine dust in the air are further filtered.

[0022] On the other hand, a high-performance constant temperature gas source box control method is provided, comprising the following steps: S1. First, set the threshold of the air temperature inside the box through the touch panel on the box door; S2, then the temperature sensors on both sides of the box body start to detect the temperature inside the box body in real time, and the detected data is processed by the control board arranged at the rear of the touch panel and displayed on the touch panel; S3, then start the fan in the constant temperature unit, under the action of the fan, the external air first passes through the filter mesh sleeve in the filter assembly to fix the large particles in advance, and then after passing through the filter cotton, the dust and fine dust in the air are further filtered; S4, then the filtered air enters the inner part of the outer tube through the filter tube, and then enters the inner part of the connecting tube through the outer tube. At this time, the heating rod inside the outer tube is turned on and off according to the data after the detection and processing. When the heating rod is turned on, the inner part of the box can be heated. When the heating rod is turned off and cooling water is passed into the cooling tube, cold air can be blown into the box, realizing the conversion and circulation of air and reducing the air temperature in the box. S5. Then, under the action of the connecting pipe, air enters the interior of the air duct frame, and under the action of multiple ventilation holes on the side, external air is introduced into the box, and at the same time, the driving motor is started, and its driving shaft drives the driving gear on the end surface to rotate, so that the driven gear drives the rotation of the gear frame, so that it drives the connecting gear back and forth through the two-part gear blocks arranged inside, so that the swinging blades rotating on the air duct frame swing as a whole through the connecting rods on the end surface, realizing the change of wind direction, so that the air entering from the outside flows into the interior of the box evenly from top to bottom, and is finally discharged through the ventilation grooves arranged on the side wall of the box near the bottom, thereby realizing constant temperature control in the box.

[0023] The beneficial effects of the present invention are as follows: 1. A high-performance constant temperature gas source box and control method thereof proposed by the present invention can control the temperature inside the gas source box in real time according to a set threshold value by adding a constant temperature unit inside the gas source box, so that the components inside the gas source box can be kept at a normal temperature for a long time, thereby increasing the service life of the gas source box; 2. The present invention proposes a high-performance constant temperature air source box and its control method, which adds a filter assembly and a swing mechanism in the constant temperature unit, so that the air entering from the outside can be kept clean and the incoming air can circulate evenly, avoiding long-term heating or cooling of a certain spatial position, protecting the components in the spatial position, and reducing the sealing problems caused by the staff regularly opening the air source box for maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A structural diagram of a high-performance constant temperature gas source box and a control method thereof according to the present invention; Figure 2 An exploded diagram of a high-performance constant temperature gas source box and a control method thereof according to the present invention; Figure 3 It is a structural diagram of a constant temperature unit in a high-performance constant temperature gas source box and a control method thereof of the present invention; Figure 4 It is a structural diagram of a swing mechanism in a high-performance constant temperature gas source box and a control method thereof of the present invention; Figure 5 for Figure 4 The enlarged view of point A in the middle; Figure 6 The cross-sectional structure diagram of a filter component and a heating component in a high-performance constant temperature gas source box and a control method thereof of the present invention.

[0025] In the figure: 1, box body; 11, pipe hole; 12, ventilation slot; 13, dust screen; 2. Box door; 21. Visual window; 22. Touch panel; 23. Handle; 3. Valve island controller; 4. Wire rack; 5. Constant temperature unit; 51. Air duct frame; 511. Ventilation hole; 52. Swing mechanism; 521. Swing blade; 522. Connecting rod; 523. Connecting gear; 524. Gear rack; 525. Positioning shaft; 526. Driven gear; 527. Driving motor; 528. Driving gear; 53. Connecting pipe; 54. Heating assembly; 541. Outer tube; 542. Fan; 543. Fixing frame; 544. Heating rod; 545. Cooling pipe; 55. Filter assembly; 551. Filter tube; 552. Filter cotton; 553. Filter net sleeve; 6. Temperature sensor. DETAILED DESCRIPTION

[0026] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0027] like Figure 1 and Figure 2As shown, a high-performance constant temperature air source box and a control method thereof include a box body 1 for storing and protecting an internal mounting structure, a plurality of pipe holes 11 are provided at the bottom of the box body 1, and the inner walls of the pipe holes 11 are provided with protective sleeves, a plurality of ventilation slots 12 are evenly provided on the side walls of the box body 1 near the bottom, and dustproof nets 13 are bolted to the ventilation slots 12, so that the air pipe entering from the outside can be sealed and fixed inside the pipe holes 11, and the ventilation slots 12 facilitate the circulation and discharge of the internal air, and facilitate the conversion of the air inside the box body 1, the valve island controller 3 is detachably installed inside the box body 1 near the bottom, and is used to distribute the incoming compressed air, the wire rack 4 is bolted to the inside of the box body 1 near the middle, and is used to organize the internally arranged wire harness, and the temperature sensor 6 is installed on the inner side wall of the box body 1 near the middle, and is used to detect the temperature of the internal space of the box body 1 in real time.

[0028] like Figure 2 As shown, the side wall of the box door 2 is hingedly connected to the front wall of the box body 1, which is used to seal the front position of the box body 1. A visual window 21 is provided on the front wall of the box door 2 near the top, and a touch panel 22 is installed in the middle of the front wall of the box door 2, and is electrically connected to the internal valve island controller 3, constant temperature unit 5 and temperature sensor 6. A handle 23 is provided on the front wall of the box door 2 near the middle of the side wall. The touch panel 22 can be used to control the valve island controller 3, constant temperature unit 5 and temperature sensor 6 to achieve constant temperature control in the box, and the handle 23 can be used to seal the box door 2 to the box body 1.

[0029] like Figure 3 As shown, the constant temperature unit 5 is detachably mounted at the bottom of the box 1, and is used to control the temperature of the space inside the box 1 in real time. The constant temperature unit 5 includes a duct frame 51 detachably mounted on the top of the box 1. The side wall of the duct frame 51 is symmetrically provided with a plurality of ventilation holes 511, and the plurality of ventilation holes 511 are all inclined from top to bottom, so that the air entering the duct frame 51 can quickly circulate obliquely downward on both sides, thereby achieving a ventilation effect inside the box 1. The top of the duct frame 51 is movably connected with a swing mechanism 5 2. A connecting pipe 53 is provided in the middle of the rear wall of the air duct frame 51. The end surface of the connecting pipe 53 is threadedly connected to a heating assembly 54. The end surface of the heating structure 54 is threadedly connected to a filter assembly 55. The filter assembly 55 can filter the incoming air to prevent particles and dust from entering the interior of the box 1. The incoming air can be heated under the action of the heating structure 54 to increase the temperature of the box 1. Finally, the swing mechanism 52 can make the air circulate evenly to avoid damage to components at a certain location. like Figure 4 and Figure 5As shown, the swing mechanism 52 includes a plurality of swing blades 521 rotatably connected to the inner wall of the air duct frame 51 near the bottom, and the end faces of the plurality of swing blades 521 are movably connected to the connecting rod 522, wherein the swing blade 521 located in the middle extends out of the air duct frame 52 away from the end face of the connecting rod 522, and a connecting gear 523 is installed on the end face, and the outer wall of the connecting gear 523 is meshedly connected with a gear rack 524, and the meshing tooth blocks of the interior of the gear rack 524 and the connecting gear 523 are divided into two parts, one part is arranged in the middle position of the gear rack 524, and the other part is arranged on the inner wall of the gear rack 524, and the two parts of the tooth blocks are respectively in contact with the outer wall of the connecting gear 523 separately, so that when the gear rack 524 rotates, the connecting gear 523 can be reciprocated through the two parts of the tooth blocks. The gear rack 524 is installed in the middle position of the side wall of the air duct frame 51 through a positioning shaft 525 with an interference fit in the middle. The end face of the positioning shaft 525 is interference fit with a driven gear 526. The outer wall of the driven gear 526 is meshingly connected with a driving gear 528 installed on the driving end of the driving motor 527. The driving motor 527 is started, and its driving shaft drives the driving gear 528 on the end face to rotate, so that the driven gear 526 drives the gear rack 524 to rotate, so that the connecting gear 523 is reciprocated through the two-part tooth blocks arranged inside, so that the swinging blades 521 rotating on the air duct frame 51 are swung as a whole through the connecting rod 522 on the end face, so as to realize the change of wind direction, so that the air entering from the outside flows into the interior of the box body 1 evenly from top to bottom.

[0030] like Figure 6 As shown, the heating assembly 54 includes an outer tube 541, a fan 542 is installed on the inner wall of the outer tube 541 near the end surface, a fixing frame 543 is installed on the inner wall of the outer tube 541 away from the fan 542, and a plurality of heating rods 544 and a cooling tube 545 are installed inside the fixing frame 543. Starting the fan 542 can quickly blow the external air into the interior of the box body 1, and the heating rod 544 is turned on and off according to the data after the detection processing. When the heating rod 544 is turned on, the interior of the box body 1 can be heated, and when the heating rod 544 is turned off, the heating rod 544 can be turned on and off. When cooling water is passed into the inside of the 44 pairs of cooling pipes 545, cold air can be blown into the box to achieve air conversion and circulation, thereby reducing the air temperature in the box. The filter component 55 includes a filter tube 551, and a filter cotton 552 is inserted into the inside of the filter tube 551. The end face of the filter tube 551 is sleeved with a filter mesh sleeve 553, so that the external air first passes through the filter mesh sleeve 553 in the filter component 55 to pre-fix large particles, and then after passing through the filter cotton 552, the dust and fine dust in the air are further filtered.

[0031] like Figure 1-Figure 6 As shown, a control method for a high-performance constant temperature gas source box comprises the following steps; S1, firstly, setting a threshold value of the air temperature inside the box 1 through the touch panel 22 on the box door 2; S2, then the temperature sensors 6 on both sides of the box body 1 start to detect the temperature inside the box body 1 in real time, and the detected data is processed by the control board arranged at the rear of the touch panel 22, and displayed on the touch panel 22; S3, then start the fan 542 in the constant temperature unit 5. Under the action of the fan 542, the external air first passes through the filter mesh sleeve 553 in the filter assembly 55 to fix the large particles in advance, and then passes through the filter cotton 552 to further filter the dust and fine dust in the air; S4, the filtered air then passes through the filter tube 551 into the interior of the outer tube 541, and then passes through the outer tube 541 into the interior of the connecting tube 53. At this time, the heating rod 544 inside the outer tube 541 is opened and closed according to the data after the detection and processing. When the heating rod 544 is turned on, the interior of the box body 1 can be heated. When the heating rod 544 is turned off and cooling water is passed into the cooling tube 545, cold air can be blown into the box, realizing the conversion and circulation of air and reducing the air temperature in the box. S5. Then, under the action of the connecting pipe 53, air enters the interior of the air duct frame 51, and under the action of the multiple ventilation holes 511 on the side, external air is introduced into the box, and at the same time, the driving motor 527 is started, and its driving shaft drives the driving gear 528 on the end surface to rotate, so that the driven gear 526 drives the rotation of the gear frame 524, so that the connecting gear 523 is reciprocated through the two-part gear blocks arranged inside, so that the swinging blades 521 rotating on the air duct frame 51 are swung as a whole through the connecting rod 522 on the end surface, realizing the change of wind direction, so that the air entering from the outside is evenly poured into the interior of the box body 1 from top to bottom, and finally discharged through the ventilation slots 12 arranged on the side wall of the box body 1 near the bottom, thereby realizing constant temperature control in the box.

[0032] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A high-performance constant temperature gas source box, characterized in that: include A box (1) is used to store and protect the internal installation structure; A box door (2), the side wall of the box door (2) being hingedly connected to the front wall of the box body (1) and being used to seal the front position of the box body (1); A valve island controller (3), the valve island controller (3) being detachably mounted inside the box (1) near the bottom, and being used to distribute the incoming compressed air; A wire rack (4), the wire rack (4) being bolted to the inside of the box (1) near the middle, and used to organize the wire harness arranged inside; A constant temperature unit (5), the constant temperature unit (5) being detachably mounted at the inner bottom of the box (1) and used for real-time temperature control of the space inside the box (1); A temperature sensor (6) is installed on the inner wall of the box body (1) near the middle, and is used to detect the temperature of the inner space of the box body (1) in real time.

2. A high-performance constant temperature gas source box according to claim 1, characterized in that: The bottom of the box body (1) is provided with a plurality of pipe holes (11), and the inner walls of the pipe holes (11) are provided with protective sleeves; the side walls of the box body (1) are evenly provided with a plurality of ventilation slots (12) near the bottom, and the ventilation slots (12) are bolted with dustproof nets (13).

3. A high-performance constant temperature gas source box according to claim 1, characterized in that: A visual window (21) is provided near the top of the front wall of the box door (2), a touch panel (22) is installed in the middle of the front wall of the box door (2), and is electrically connected to the internal valve island controller (3), the constant temperature unit (5) and the temperature sensor (6), and a handle (23) is provided near the middle of the side wall of the front wall of the box door (2).

4. A high-performance constant temperature gas source box according to claim 1, characterized in that: The constant temperature unit (5) comprises an air duct frame (51) detachably mounted on the top of the box body (1); the top of the air duct frame (51) is movably connected to a swing mechanism (52); a connecting pipe (53) is provided in the middle of the rear wall of the air duct frame (51); the end face of the connecting pipe (53) is threadedly connected to a heating assembly (54); and the end face of the heating structure (54) is threadedly connected to a filter assembly (55).

5. A high-performance constant temperature gas source box according to claim 4, characterized in that: The side wall of the air duct frame (51) is symmetrically provided with a plurality of ventilation holes (511), and the plurality of ventilation holes (511) are all arranged in an inclined manner from top to bottom.

6. A high-performance constant temperature gas source box according to claim 4, characterized in that: The swing mechanism (52) comprises a plurality of swing blades (521) rotatably connected to the inner wall of the air duct frame (51) near the bottom, the end surfaces of the plurality of swing blades (521) being movably connected to a connecting rod (522), wherein the swing blade (521) located in the middle extends out of the air duct frame (52) away from the end surface of the connecting rod (522), and a connecting gear (523) is mounted on the end surface, the outer wall of the connecting gear (523) is meshingly connected to a gear rack (524), the gear rack (524) is mounted at the middle position of the side wall of the air duct frame (51) via a positioning shaft (525) which is interference-connected in the middle, the end surface of the positioning shaft (525) is interference-connected to a driven gear (526), ​​and the outer wall of the driven gear (526) is meshingly connected to a driving gear (528) mounted on the driving end of a driving motor (527).

7. A high-performance constant temperature gas source box according to claim 6, characterized in that: The meshing tooth block inside the tooth rack (524) and the connecting gear (523) is divided into two parts, one part is arranged in the middle of the tooth rack (524), and the other part is arranged on the inner wall of the tooth rack (524), and the two parts of the tooth block are in separate contact with the outer wall of the connecting gear (523).

8. A high performance constant temperature gas source box according to claim 4, characterized in that: The heating component (54) comprises an outer tube (541), a fan (542) is installed on the inner wall of the outer tube (541) near the end surface, a fixing frame (543) is installed on the inner wall of the outer tube (541) away from the fan (542), and a plurality of heating rods (544) and cooling tubes (545) are installed inside the fixing frame (543).

9. A high-performance constant temperature gas source box according to claim 4, characterized in that: The filter assembly (55) comprises a filter tube (551), filter cotton (552) is inserted into the interior of the filter tube (551), and a filter mesh sleeve (553) is sleeved on the end surface of the filter tube (551).

10. A control method for a high-performance constant temperature gas source box according to any one of claims 1 to 9, characterized in that: The steps include: S1. First, a threshold value of the air temperature inside the box (1) is set through the touch panel (22) on the box door (2); S2, the temperature sensors (6) on both sides of the box (1) are then started to detect the temperature inside the box (1) in real time, and the detected data are processed by a control panel arranged at the rear of the touch panel (22), and displayed on the touch panel (22); S3, then starting the fan (542) in the constant temperature unit (5). Under the action of the fan (542), the external air first passes through the filter mesh sleeve (553) in the filter assembly (55) to fix the large particles in advance, and then further filters the dust and fine dust in the air after passing through the filter cotton (552); S4, the filtered air then passes through the filter tube (551) into the interior of the outer tube (541), and then passes through the outer tube (541) into the interior of the connecting tube (53). At this time, the heating rod (544) and the cooling tube (545) inside the outer tube (541) are opened and closed according to the data after the detection and processing. When the heating rod (544) is turned on, the interior of the box body (1) can be heated. When the heating rod (544) is turned off and cooling water is passed into the interior of the cooling tube (545), cold air can be blown into the box, thereby realizing the conversion and circulation of air and reducing the air temperature inside the box. S5. Then, under the action of the connecting pipe (53), air is allowed to enter the interior of the air duct frame (51), and under the action of the plurality of ventilation holes (511) on the side, external air is introduced into the box. At the same time, the driving motor (527) is started, and its driving shaft drives the driving gear (528) on the end surface to rotate, so that the driven gear (526) drives the gear frame (524) to rotate, so that the connecting gear (523) is reciprocatedly driven through the two-part gear blocks arranged inside, so that the swing blades (521) rotating on the air duct frame (51) swing as a whole through the connecting rods (522) on the end surface, thereby achieving a change in wind direction, so that the air entering from the outside flows into the interior of the box body (1) evenly from top to bottom, and is finally discharged through the ventilation slots (12) arranged on the side wall of the box body (1) near the bottom, thereby achieving constant temperature control in the box.

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