Ceiling unit

Abstract

The present invention provides a ceiling machine, comprising: a main frame and an air outlet assembly, wherein the air outlet assembly can be raised and lowered inside the main frame. The ceiling machine provided by the present invention provides design standards for the specific parameters of the air outlet assembly and the air guide plate (size, swingable angle of the air guide plate, etc.) by adjusting the angle between the air outlet direction of the air outlet and the air outlet direction of the air outlet duct, as well as the angle between the plane where the air guide plate is located and the air outlet duct. This can optimize the guiding effect of the airflow at the air outlet, thereby improving the air outlet effect of the ceiling machine, overcoming the problem in the prior art that the air outlet assembly and the air guide plate are designed only based on the appearance structure of the ceiling machine, resulting in poor air outlet effect of the ceiling machine, and ensuring that the air outlet effect of the finished ceiling machine meets the preset requirements. The angle is required in the cooling mode and the heating mode respectively, which can further optimize the parameters of the air guide plate and further optimize the air outlet effect of the ceiling machine.

Description

Technical Field

[0001] The present invention relates to the technical field of air treatment equipment, in particular to a skylight machine. Background Art

[0002] Currently, the air outlet assembly of conventional overhead hoods is a liftable structure, with a main frame fixedly mounted circumferentially outside the air outlet assembly. When the overhead hood is in operation, the air outlet assembly descends to a certain height, creating a height difference with the main frame. The air outlet assembly and the main frame, located outside the air outlet assembly, form an air outlet. The fan blows air from the interior of the overhead hood through the outlet, and an air guide located at the outlet guides the airflow. In particular, when the air conditioner is in cooling mode, it is necessary to keep the airflow as parallel to the horizontal plane as possible to increase the air supply distance, thereby achieving waterfall-like cooling and improving user comfort. However, the air guides of conventional overhead hoods are designed to adjust the air outlet direction based solely on the angle of the air guide, without considering the impact of the internal structure of the overhead hood on the air outlet direction. Furthermore, if the angle of the air guide is too large, the air will directly blow against the wall, affecting the air volume. If the angle of the air guide is too large, the air supply distance will be reduced, ultimately resulting in poor air outlet performance for the overhead hood. Summary of the Invention

[0003] In order to solve the technical problem of poor air outlet effect of the overhead crane in the prior art, a overhead crane is provided which defines the matching relationship between the air guide plate and the air outlet duct to improve the air outlet effect.

[0004] A roof crane, comprising:

[0005] A main frame, wherein an air outlet duct is provided in the main frame, and the air outlet duct has a first end and a second end along the airflow direction;

[0006] an air outlet assembly, the air outlet assembly being liftably disposed on the main frame, and having a working position in which the air outlet assembly is lowered to a predetermined height and forms an air outlet with the main frame, the air outlet being in communication with the second end of the air outlet duct;

[0007] When the air outlet assembly is in the working position, an angle b between the air outlet direction of the air outlet and the air outlet direction of the air outlet duct is in a range of 130°≤b≤150°.

[0008] The air outlet assembly includes an air guide plate and an air outlet frame. The air outlet frame is arranged on the main frame. The air guide plate is swingably arranged on the air outlet frame. When the air outlet assembly is in the working position, the air guide plate can adjust the height of the air outlet.

[0009] The overhead crane has a cooling mode. When the overhead crane is in the cooling mode, the angle c between the plane where the air guide plate is located and the air outlet direction of the air outlet duct is in the range of 120°≤c≤140°.

[0010] The ceiling unit has a heating mode. When the ceiling unit is in the heating mode, the angle c between the plane where the air guide plate is located and the air outlet direction of the air outlet duct is in the range of 180°≤c≤190°.

[0011] The air outlet assembly has a closed position that cooperates with the main frame to close the air outlet, and the air guide plate has a first edge and a second edge. When the air outlet assembly is in the closed position, the first edge is sealed with the corresponding position of the main frame, and the second edge is sealed with the corresponding edge of the air outlet frame.

[0012] The air guide plate has a first edge and a second edge. When the air outlet assembly is in the closed position, the first edge is sealed with the corresponding edge of the main frame, and the second edge is sealed with the corresponding edge of the air outlet frame.

[0013] A first step structure is provided on the second edge, and a second step structure matching the step structure is provided on the air outlet assembly. The first step structure can be sealed and matched with the second step structure.

[0014] A sealing member is provided on the first step structure, and when the first step structure is sealed with the second step structure, the sealing member is provided between the first step structure and the second step structure.

[0015] The skylight machine further includes a swing mechanism, which is arranged on the air outlet assembly, and the air guide plate is arranged on the swing mechanism.

[0016] The swing mechanism includes a rotating arm, one end of the rotating arm is hinged to the air outlet frame, and the other end of the rotating arm is arranged on the air guide plate.

[0017] The swing mechanism further includes a driving member, which is disposed on the air outlet frame and directly or indirectly drives the rotating arm to rotate.

[0018] The air outlet assembly includes an air outlet frame, an air outlet is formed between the air outlet frame and the main frame, and the air outlet frame is lifted and lowered independently.

[0019] The air outlet assembly includes an air outlet frame and an air return panel. An air outlet is formed between the air outlet frame and the main frame. The air return panel is provided with an air return port. The air outlet frame and the air return panel are connected and rise and fall together.

[0020] At least one second air outlet is provided on the air outlet component, and the second air outlet is communicated with the air outlet duct.

[0021] The skylight machine further includes an air guide plate, which is rotatably disposed at the second air outlet and can close or open the second air outlet.

[0022] The ceiling fan provided by the present invention provides design standards for the specific parameters of the air outlet assembly and the air guide plate (size, swingable angle of the air guide plate, etc.) by adjusting the angle between the air outlet direction and the air outlet direction of the air outlet duct, as well as the angle between the plane where the air guide plate is located and the air outlet duct. This can optimize the airflow guidance effect at the air outlet, thereby improving the air outlet effect of the ceiling fan. This overcomes the problem in the prior art of poor air outlet effect caused by designing the air outlet assembly and the air guide plate based solely on the appearance structure of the ceiling fan, and ensures that the air outlet effect of the finished ceiling fan meets the preset requirements. The angle requirements are set separately in the cooling mode and the heating mode, which can further optimize the parameters of the air guide plate and further optimize the air outlet effect of the ceiling fan. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A schematic structural diagram of a roof hoist according to an embodiment of the present invention;

[0024] Figure 2 Another structural schematic diagram of a roof hoist provided by an embodiment of the present invention;

[0025] Figure 3 A cross-sectional view of a lift machine provided in accordance with an embodiment of the present invention;

[0026] In the picture:

[0027] 1. Main frame; 2. Air outlet duct; 21. First end; 22. Second end; 3. Air outlet assembly; 10. Air outlet; 4. Air guide plate; 41. First edge; 42. Second edge; 5. Rotating arm; 13. Second air outlet; 14. Air supply duct; 15. Frame. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0029] In the prior art, there is the following relationship between the air supply distance and the air volume of the ceiling fan: when the air supply distance is long, the air volume attenuation is large, and when the air supply distance is short, the air volume attenuation is small. The structure of the internal air duct of the existing ceiling fan is generally fixed, so all ceiling fans use the method of setting an air guide plate at the air outlet to adjust the air outlet direction of the ceiling fan, so as to achieve the purpose of improving the air outlet effect of the ceiling fan. However, after the applicant studied the air flow of the ceiling fan and analyzed the experimental data through simulation, it was found that the setting of an air guide plate at the air outlet alone actually has little effect on the air outlet effect of the ceiling fan, and the parameters of the matching relationship between the air outlet direction of the air outlet duct and the angle of the air guide plate, which have been ignored and neglected in this field, are actually the improvement points that can effectively improve the heating efficiency of the ceiling fan.

[0030] Therefore, if Figure 1 The skylight machine shown includes a main frame 1, in which an air outlet duct 2 is provided, and the air outlet duct 2 has a first end 21 and a second end 22 along the direction of the air flow; an air outlet assembly 3, the air outlet assembly 3 can be raised and lowered on the main frame 1, and the air outlet assembly 3 has a working position in which it is lowered to a predetermined height and forms an air outlet 10 with the main frame 1, and the air outlet 10 is connected to the second end 22 of the air outlet duct 2; when the air outlet assembly 3 is in the working position, the angle b between the air outlet direction of the air outlet 10 and the air outlet direction of the air outlet duct 2 is in the range of 130°≤b≤150°. The air outlet direction of the air outlet refers to the flow direction of the gas when passing through the flow surface of the air outlet, and the air outlet direction of the air outlet duct 2 refers to the flow direction of the air flow when it flows out of the air outlet duct 2, that is, the flow direction of the air flow at the second end 22.

[0031] It should be noted that the main frame 1 is the primary load-bearing structure of the ceiling unit. When the ceiling unit is installed, the main frame 1 is used to be mounted on the ceiling. Other structures can be directly or indirectly mounted on the main frame 1 and fixed to the ceiling through the main frame 1. The ceiling unit has an internal unit portion installed in the ceiling. The main frame 1 is connected to the internal unit. The air outlet assembly 3 is connected to the main frame 1. The internal unit has an internal unit exhaust port. The first end 21 of the outlet duct 2 of the main frame 1 is connected to the internal unit exhaust port. The air flow path is: return air port - evaporator - internal unit exhaust port - first end 21 of the outlet duct 2 - second end 22 of the outlet duct 2 - air outlet.

[0032] Taking the experimental data of 3-HP machine as an example, the value of angle b is adjusted for simulation. The simulation results are as follows:

[0033] Angle b <![CDATA[Air volume (m 3 / h)]]> Air supply distance 125° 838 3.1m 130° 995 3.5m 140° 1005 3.5m 150° 1112 2.2m 155° 1112 1.4m

[0034] The simulation results show that when angle b is 140°, the air volume reaches its maximum value, and the air supply distance can reach its maximum value. When angle b increases to 150°, although the air volume reaches its maximum value, the air supply distance begins to decrease. When angle b continues to increase to 155°, the air volume remains at its maximum value, but the air supply distance is severely reduced, making it impossible to achieve the horizontal waterfall cooling effect. When angle b decreases to 130°, although the air supply distance remains at its maximum value, the air volume begins to decrease. When angle b continues to decrease to 125°, both the air volume and the air supply distance begin to decrease. In other words, when angle b is too large, although the air volume can remain at its maximum value, the air supply distance is severely reduced, resulting in poor air supply performance of the overhead hood. When angle b is too small, both the air volume and the air supply distance begin to decrease, also resulting in poor air supply performance of the overhead hood. Only when angle b is between 130° and 150° can the air volume and air supply distance be reasonably matched, ultimately ensuring the air supply performance of the overhead hood.

[0035] The air outlet assembly includes an air guide plate 4 and an air outlet frame. The air outlet frame is provided on the main frame 1. The air guide plate 4 is swingably provided on the air outlet frame. When the air outlet assembly 3 is in the working position, the air guide plate 4 can adjust the height of the air outlet 10. When the air guide plate 4 swings upward, the height of the air outlet 10 gradually decreases. At this time, the air outlet direction at the air outlet will also gradually tilt upward, thereby increasing the wall-adhering effect of the airflow at the air outlet. When the air guide plate swings downward, the height of the air outlet 10 gradually increases. At this time, the air outlet direction at the air outlet also gradually tilts downward. Because the air outlet direction of the air outlet duct 2 is basically vertically downward, under the air outlet direction of the air outlet duct 2 and the structural constraints of the air outlet 10, the airflow at the air outlet 10 at this time can be gradually adjusted from horizontal air outlet to vertical air outlet. Therefore, under the cooperation of the air guide plate and the air outlet direction of the air outlet duct, the requirements of horizontal air outlet for cooling and vertical air outlet for heating are simultaneously met.

[0036] The ceiling machine has a cooling mode. When the ceiling machine is in cooling mode, in order to achieve waterfall cooling, it is necessary to make the air flow flow along the installation plane of the main frame 1 such as the ceiling as much as possible. Therefore, the angle c between the plane where the air guide plate 4 is located and the air outlet direction of the air outlet duct 2 is in the range of 120°≤c≤140° to ensure that the air supply distance of the ceiling machine meets the requirements of waterfall cooling.

[0037] Taking the experimental data of 3-HP machine as an example, the value of angle c is adjusted for simulation. The simulation results are as follows:

[0038]

[0039]

[0040] The simulation results show that when angle c reaches 130°, the air volume reaches its maximum, while the air supply distance reaches its maximum. When angle c increases to 140°, the air volume reaches its maximum, but the air supply distance begins to decrease. When angle c continues to increase to 145°, the air volume remains at its maximum, but the air supply distance decreases significantly, making it impossible to achieve the horizontal waterfall cooling effect. When angle c decreases to 120°, although the air supply distance remains at its maximum, the air volume begins to decrease. When angle c further decreases to 115°, both the air volume and the air supply distance begin to decrease. In other words, when the overhead unit is in cooling mode, if angle c is too large, although the air volume can remain at its maximum, the air supply distance decreases significantly, resulting in poor air supply performance. When angle c is too small, both the air volume and the air supply distance begin to decrease, also resulting in poor air supply performance. Only when angle c is between 120° and 140° can the air volume and air supply distance be properly matched, ultimately ensuring the air supply performance of the overhead unit.

[0041] Furthermore, when the skylight unit is in cooling mode, the angle a between the plane of the air deflector 4 and the horizontal plane is in the range of -10°≤d≤10°, and when a=0°, the plane of the air deflector 4 is parallel to the horizontal plane. A negative angle is defined when the plane of the air deflector 4 is tilted upward relative to the horizontal plane (the air deflector 4 tilts upward), while a positive angle is defined when the plane of the air deflector 4 is tilted downward relative to the horizontal plane (the air deflector 4 tilts downward).

[0042] The ceiling machine has a heating mode. When the ceiling machine is in heating mode, in order to achieve rapid heating, it is necessary to make the air flow blow directly to the ground as much as possible. Therefore, the angle c between the plane where the air guide plate 4 is located and the air outlet direction of the air outlet duct 2 is in the range of 180°≤c≤190° to ensure that the air outlet angle of the ceiling machine meets the requirements of rapid heating.

[0043] Taking the experimental data of 3-HP machine as an example, the value of angle c is adjusted for simulation. The simulation results are as follows:

[0044]

[0045]

[0046] From the simulation results, when the angle c reaches 185°, the air volume reaches the maximum value, and the air supply distance also basically reaches the maximum value; when the angle c increases to 190°, although the air volume reaches the maximum value, the air supply distance begins to decrease; when the angle c continues to increase to 195°, the air volume remains at the maximum value, but the airflow at the air outlet is sucked by the return air outlet and fails to fall to the ground, that is, the effect of rapid heating by vertical air outlet cannot be achieved at this time; when the angle c decreases to 180°, although the air supply distance reaches the maximum value, the air volume begins to decrease; when the angle c continues to decrease to 175°, the air volume continues to decrease, and the airflow cannot blow directly to the ground but can only blow through in the air, and the effect of rapid heating by vertical air outlet cannot be achieved. That is, when the ceiling unit is in heating mode, when the angle c is too large, although the air volume can remain unchanged at the maximum value, the air supply distance is severely attenuated and there may even be suction and backflow at the return air outlet, which will cause the ceiling unit to have poor air outlet effect. When the angle c is too small, the air volume begins to decrease, and the airflow cannot reach the ground and cannot achieve the effect of rapid heating through vertical air outlet, which will also cause the ceiling unit to have poor air outlet effect. Only when the angle c is between 180° and 190° can the air volume and air supply distance be reasonably matched, thereby ultimately ensuring the air outlet effect of the ceiling unit.

[0047] By limiting the angle c between the air guide plate 4 and the air outlet direction of the air outlet duct 2, the design and assembly process of the air guide plate 4 are limited. After the angle c is limited, the size of the air guide plate 4 is determined according to the exposed surface formed between the main frame 1 and the air outlet component 3 (in order to form the air outlet 10, when the air outlet component 3 is retracted into the main frame 1, there will still be some areas on the appearance of the ceiling machine where the internal structure of the ceiling machine can be directly viewed, which will affect the overall appearance of the ceiling machine, and this area where the internal structure of the ceiling machine can be directly viewed constitutes the exposed surface). That is, the air guide plate 4 under this size can block the exposed surface, which overcomes the problem in the prior art that the air outlet effect of the ceiling machine is poor because the air guide plate is designed only according to the appearance structure of the ceiling machine, and ensures that the air outlet effect of the finished ceiling machine meets the preset requirements.

[0048] It should be noted that the main frame 1 is the main load-bearing structure of the roof crane. When the roof crane is installed, the main frame 1 is used to be installed on the ceiling. Other structures can be directly or indirectly installed on the main frame 1 and fixed to the ceiling through the main frame 1.

[0049] The height of the air outlet is the height between the edge of the main frame 1 forming the lowest point of the air outlet duct 2 and the outermost edge of the air guide plate 4 in the lifting direction of the air outlet assembly.

[0050] The air outlet assembly has a closed position that cooperates with the main frame 1 to close the air outlet 10. The air guide plate 4 has a first edge 41 and a second edge 42. When the air outlet assembly 3 is in the closed position, the first edge 41 is sealed against the corresponding position of the main frame 1, and the second edge 42 is sealed against the corresponding edge of the air outlet frame. The corresponding sealing between the first edge 41 and the main frame 1 and the corresponding sealing between the second edge 42 and the air outlet frame ensures that when the air outlet assembly is in the closed position, the air guide plate 4 can seal the corresponding position of the air outlet 10, thereby preventing dust and other impurities from entering the interior of the overhead crane through the air outlet 10 and affecting the performance of the overhead crane.

[0051] When the air outlet assembly 3 is in the closed position, the air outlet frame and air guide plate 4 cooperate to form a seal with the main frame 1. When the air outlet assembly 3 is in the closed position, the angle a between the air guide plate 4 and the horizontal plane is within a range of -10° to 0°. That is, when the air guide plate 4 is at 0°, the plane on which the air guide plate 4 lies is parallel to the horizontal plane; when the air guide plate 4 is at -10°, the plane on which the air guide plate 4 lies is tilted upward by 10° relative to the horizontal plane.

[0052] A first step structure is provided on the second edge 42, and a second step structure is provided on the air outlet frame to cooperate with the first step structure. The first step structure and the second step structure can be sealed together. The first and second step structures can ensure a reliable seal between the air guide plate 4 and the air outlet assembly 3, while also ensuring that during the swinging process of the air guide plate 4, there will be no structural interference with the air outlet frame, which would affect the structural reliability of the air outlet assembly 3.

[0053] A seal is provided on the first step structure, and when the first step structure and the second step structure are in sealing engagement, the seal is disposed between the first step structure and the second step structure. In other words, the seal moves along with the air deflector. When the air deflector and the air outlet frame are relatively sealed, the seal closes the gap between the air deflector and the air outlet assembly, thereby enhancing the sealing effect between the air deflector and the air outlet frame.

[0054] The skylight machine further includes a swing mechanism, which is arranged on the air outlet assembly 3, and the air guide plate 4 is arranged on the swing mechanism.

[0055] The swing mechanism includes a rotating arm 5, one end of which is hinged to the air outlet frame, and the other end of which is provided on the air guide plate 4. Preferably, a rotating arm 5 is provided at both ends of the air guide plate 4 in the longitudinal direction to ensure the synchronization of the overall movement of the air guide plate 4.

[0056] The swing mechanism also includes a driver, which is mounted on the air outlet frame and directly or indirectly drives the rotating arm 5 to rotate. One end of the rotating arm 5 is mounted on the driver, and the air deflector 4 is mounted on the other end of the rotating arm 5. When the rotating arm 5 rotates with the end mounted on the driver, the air deflector 4 moves along with the end of the rotating arm 5, thereby achieving the swing of the air deflector 4. The driver can be a stepping motor.

[0057] The skylight crane further includes a lifting mechanism, which is disposed on the main frame 1 and on which the air outlet assembly 3 is disposed. The lifting mechanism enables the air outlet assembly 3 to extend or retract into the main frame 1, thereby enabling the air outlet assembly 3 to move freely between an operating position and a closed position.

[0058] The air outlet assembly 3 includes an air outlet frame, an air outlet is formed between the air outlet frame and the main frame, and the air outlet frame is raised and lowered independently. In other embodiments not shown, the air outlet assembly 3 includes an air outlet frame and an air return panel, an air outlet is formed between the air outlet frame and the main frame, and the air return panel is provided with a return air outlet. The air outlet frame and the return air panel are connected and raised and lowered together.

[0059] like Figure 2 and Figure 3 The figure shows another embodiment of a ceiling fan. The air outlet assembly 3 is provided with at least one second air outlet 13, which communicates with the air outlet duct. The provision of the second air outlet 13 enables the ceiling fan to meet requirements for diagonally downward airflow, or even vertically downward airflow. Furthermore, the combination of the air outlet 10 and the second air outlet 13 increases the fan's airflow options, thereby enhancing the fan's airflow efficiency, temperature regulation accuracy, and speed.

[0060] When the air outlet assembly 3 descends to form the air outlet 10 between the air outlet assembly 3 and the main frame 1, a gap is formed between the air outlet assembly 3 and the main frame 1, and the gap forms an air supply duct 14. One end of the air supply duct 14 is connected to the air outlet duct 2, and the other end of the air supply duct 14 forms the air outlet 10. The airflow in the air outlet duct 2 is guided by the air supply duct 14 and then blown out of the air outlet 10. The air supply duct 14 is used to guide the vertical downward airflow in the air outlet duct 2 to be discharged in a generally horizontal direction away from the overhead crane, or even in a direction inclined upward relative to the horizontal plane, thereby achieving horizontal air discharge to the overhead crane.

[0061] In the prior art, all ceiling machines use air outlets opened on the surface facing the ground to discharge air. In order to change the direction of the air outlet, an air guide plate is set at the air outlet to guide the air flow. However, on the installation plane of the ceiling machine, the projection of the air guide plate does not overlap with the projection of the panel of the ceiling machine, so that the air guide plate has a poor guiding effect on the air flow, which ultimately reduces the air supply distance of the ceiling machine. For this reason, the main frame 1 of the present application also includes a frame 15. When the air outlet component 3 is lowered to form the air outlet 10 between the main frame 1, the air supply duct 14 is formed between the air outlet component 3 and the frame 15. On the installation plane of the main frame 1 (such as the ceiling), the projection of the air outlet component 3 and the projection of the frame 15 at least partially overlap. When the projection of the air outlet component 3 partially coincides with the projection of the frame 15, the air outlet component is substantially extended compared to the prior art, so that the horizontal blowing effect of the ceiling machine is good and the air supply distance is increased. When the ceiling machine opens the air outlet 10, the air outlet component 3 gradually moves away from the main frame 1 to form the air supply duct 14. At this time, the corresponding part of the air outlet component 3 forms the lower side of the air supply duct 14. When the air flow passes through the air supply duct 14, the air flow flows in a horizontal direction or even blows out in an upward inclined direction under the guidance of the lower side of the air supply duct, so that the air supply distance of the ceiling machine is increased, thereby achieving the effect of horizontal air outlet.

[0062] As another embodiment, the projection of the air outlet assembly 3 completely overlaps with the projection of the frame 15. In this case, compared to the case where the projection of the air outlet assembly 3 partially overlaps with the projection of the frame 15, the air outlet assembly can be further extended, thereby achieving a better flat blowing effect of the overhead crane and further increasing the air supply distance. At the same time, when the overhead crane is in the stopped state, the air outlet assembly 3 is attached to the main frame 1, and the corresponding part of the air outlet assembly 3 is attached to the frame 15. When a person observes the overhead crane from the ground, he can only see the air outlet assembly 3 and cannot see the main frame 1, which effectively increases the aesthetics of the overhead crane.

[0063] As another embodiment, the projection of the air outlet component 3 exceeds the projection of the frame 15. In this case, compared with the case where the projection of the air outlet component 3 completely coincides with the projection of the frame 15, the air outlet component can be further extended, thereby further increasing the flat blowing effect and air supply distance of the ceiling machine.

[0064] Preferably, the projection of the air outlet assembly 3 exceeds the projection of the main frame 1, so that the air outlet assembly 3 effectively increases the air guide size compared with the prior art, thereby achieving the purpose of increasing the air supply distance of the ceiling machine.

[0065] The ceiling machine also includes an air guide plate 4, which is rotatably arranged at the second air outlet 13, and the air guide plate 4 can close or open the second air outlet 13. When it is necessary to open the second air outlet 13, the air guide plate 4 gradually rotates to connect the second air outlet 13 with the air outlet duct 2, so that the air flow in the air outlet duct 2 can be blown out from the second air outlet 13, and the air guide plate 4 can adjust its inclination angle according to actual needs to adjust the air outlet direction and / or air volume of the second air outlet 13; and when it is necessary to close the second air outlet 13, the air guide plate 4 is reset to a state of sealing cooperation with the air outlet component 3, thereby closing the second air outlet 13. At this time, the air flow in the air outlet duct 2 can only be blown out from the air outlet 10 under the joint guiding action of the air outlet component 3 and the air guide plate 4.

[0066] The above-described embodiments merely illustrate several implementations of the present invention, and while their descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A roof crane, characterized in that: include: A main frame (1), wherein an air outlet duct (2) is provided in the main frame (1), and the air outlet duct (2) has a first end (21) and a second end (22) along the air flow direction; An air outlet assembly (3), the air outlet assembly (3) being movably mounted on the main frame (1), and the air outlet assembly (3) having a working position where it is lowered to a predetermined height and forms an air outlet (10) with the main frame (1), the air outlet (10) being in communication with the second end (22) of the air outlet duct (2); When the air outlet assembly (3) is in the working position, the angle b between the air outlet direction of the air outlet (10) and the air outlet direction of the air outlet duct (2) is in the range of 130°≤b≤150°; At least one second air outlet (13) is provided on the air outlet component (3), and the second air outlet (13) is communicated with the second end (22) of the air outlet duct (2); The skylight machine further comprises an air guide plate (4), the air guide plate (4) being rotatably arranged at the second air outlet (13), and the air guide plate (4) being capable of closing or opening the second air outlet (13); The skylight unit has a cooling mode. When the skylight unit is in the cooling mode, the angle c between the plane where the air guide plate (4) is located and the air outlet direction of the air outlet duct (2) is in a range of 120°≤c≤140°; Alternatively, the ceiling machine has a heating mode, and when the ceiling machine is in the heating mode, the angle c between the plane where the air guide plate (4) is located and the air outlet direction of the air outlet duct (2) is in the range of 180°≤c≤190°.

2. The roof crane according to claim 1, characterized in that: The air outlet assembly comprises an air outlet frame, and the air outlet frame is arranged on the main frame. When the air outlet assembly (3) is in the working position, the air guide plate (4) can adjust the height of the air outlet (10).

3. The roof crane according to claim 2, characterized in that: The air outlet assembly has a closed position for cooperating with the main frame (1) to close the air outlet (10); the air guide plate (4) has a first edge (41) and a second edge (42); when the air outlet assembly (3) is in the closed position, the first edge (41) is sealed with a corresponding position of the main frame (1), and the second edge (42) is sealed with a corresponding edge of the air outlet frame.

4. The overhead crane according to claim 3, characterized in that: A first step structure is provided on the second edge (42), and a second step structure that matches the first step structure is provided on the air outlet frame, and the first step structure can be sealed with the second step structure.

5. The roof crane according to claim 4, characterized in that: A sealing member is provided on the first step structure, and when the first step structure is in sealing cooperation with the second step structure, the sealing member is located between the first step structure and the second step structure.

6. The overhead crane according to claim 2, characterized in that: The skylight machine further comprises a swing mechanism, the swing mechanism is arranged on the air outlet assembly (3), and the air guide plate is arranged on the swing mechanism.

7. The overhead crane according to claim 6, characterized in that: The swing mechanism comprises a rotating arm (5), one end of the rotating arm (5) is hinged to the air outlet frame, and the other end of the rotating arm (5) is arranged on the air guide plate.

8. The overhead crane according to claim 7, characterized in that: The swing mechanism further comprises a driving member, which is arranged on the air outlet frame, and the driving member directly or indirectly drives the rotating arm (5) to rotate.

9. The overhead crane according to claim 1, characterized in that: The air outlet assembly (3) comprises an air outlet frame, an air outlet is formed between the air outlet frame and the main frame, and the air outlet frame is independently raised and lowered.

10. The overhead crane according to claim 1, characterized in that: The air outlet assembly (3) comprises an air outlet frame and an air return panel, an air outlet is formed between the air outlet frame and the main frame, the air return panel is provided with an air return port, and the air outlet frame and the air return panel are connected and rise and fall together.

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