Multi-functional duct bending transition device for floor air conditioner
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG PROVINCIAL YIWU AIRPORT MANAGEMENT CO LTD
- Filing Date
- 2025-07-31
- Publication Date
- 2026-06-05
Smart Images

Figure CN224324148U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of airport air conditioning supporting devices, specifically to a multifunctional ground air conditioning pipe bending transition device. Background Technology
[0002] After an aircraft is parked at an airport, for reasons of economy, environmental protection, safety and reliability, the airport ground air conditioning units are often connected to the aircraft cabin through air conditioning ducts to maintain a comfortable cabin environment. The air conditioning ducts are then removed when the aircraft is about to take off.
[0003] Air conditioning ducts are often connected to the bottom of the aircraft cabin via air conditioning connectors. After hanging down to the ground, the air conditioning ducts bend and connect to the ground air conditioning units. Because the air conditioning ducts are made of flexible materials, they are difficult to maintain a complete cylindrical shape when bending due to material and weather conditions, which leads to reduced ventilation efficiency and affects the maintenance of a comfortable environment. Utility Model Content
[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a multifunctional ground air conditioning duct bending transition device that ensures ventilation efficiency.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a base placed on the ground, wherein an arc-shaped transition channel is provided inside the base and the two ends of the transition channel are respectively located on the upper end face and the front side face of the base; a vertical connecting pipe connected to the transition channel and connected to the aircraft is fixedly provided on the upper end face of the base; a horizontal connecting pipe connected to the transition channel and connected to the air conditioning duct is fixedly provided on the front side face of the base; and the base is provided with a weight adjustment mechanism for adjusting the weight of the base.
[0006] By adopting the above technical solution, when it is necessary to connect the ground air conditioner to the aircraft cabin, the base is first transported to the location directly below the aircraft where the air conditioner duct is connected. Then, it is connected to the aircraft through a vertical connecting pipe and to the air conditioner duct through a horizontal connecting pipe. Finally, the ground air conditioner is turned on to deliver airflow to the aircraft cabin to maintain a comfortable cabin environment. During this process, since the apron is generally an open square, strong winds will inevitably impact the base. The weight adjustment mechanism needs to adjust the weight of the base to a stable weight that can withstand the impact. The above structure has the following advantages: ① The rigid channel structure inside the base replaces the flexible air conditioning duct to complete the transition from vertical to horizontal. The channel will not deform due to material or weather conditions, thus ensuring ventilation efficiency and maintaining a comfortable cabin environment; ② A weight adjustment mechanism is added to adjust the weight of the base as needed. On the one hand, it can effectively resist the impact of strong winds on the base. In operation, this device can stably maintain the vertical alignment with the aircraft docking position, thus ensuring ventilation efficiency. On the other hand, if the weight of the base greatly exceeds the weight used to resist strong winds, the weight of the base can be adjusted, thereby reducing the difficulty of moving the base.
[0007] The present invention is further configured such that: the weight adjustment mechanism includes a counterweight module and a counterweight hole, the counterweight hole is disposed in the base, the counterweight hole is located on the left and right sides of the transition channel and arranged in sequence along the vertical direction, and the counterweight hole is provided with a plug-in port extending to the front side for the counterweight module to be plugged in and out.
[0008] By adopting the above technical solution, a suitable number of counterweight modules are selected and installed in the counterweight holes according to the actual wind impact to be resisted, so that the weight control is more precise. At the same time, the plug-in method is used for disassembly and assembly, eliminating the need for fasteners and tools, making disassembly and assembly more convenient.
[0009] The present invention is further configured such that: the counterweight module is a cylindrical component, the upper end face of the counterweight module is provided with a handle for manually rotating the counterweight module, the outer circumferential surface of the counterweight module is provided with a spiral recess, the counterweight hole is a circular blind hole, the inner circumferential surface of the counterweight hole is provided with a spiral protrusion that is consistent with the shape of the spiral recess, when the counterweight module rotates clockwise relative to the counterweight hole, the spiral protrusion gradually screws into the spiral recess, and the counterweight module gradually inserts into the counterweight hole; when the counterweight module rotates counterclockwise relative to the counterweight hole, the spiral protrusion gradually screws out of the spiral recess, and the counterweight module gradually pulls out of the counterweight hole.
[0010] By adopting the above technical solution, the counterweight module and the counterweight hole are disassembled and assembled using a screw connection, which is simple to operate and reliable to install.
[0011] The present invention is further configured such that the counterweight hole gradually decreases in height as it moves away from the plug-in port.
[0012] By adopting the above technical solution, the weight of the counterweight module itself is made reasonable. When it is placed in the counterweight hole, which gradually decreases in height as it moves away from the plug-in port, it will not gradually fall off the counterweight hole due to vibration, thus ensuring the reliability of the device.
[0013] The present invention is further configured such that: traction rods are respectively provided on both sides of the front side of the base, the height of the traction rods gradually increases as they move away from the front side of the base, the upper end of the traction rods is provided with a downwardly curved traction hook, and an auxiliary wheel is rotatably provided on the rear side of the base, the auxiliary wheel rolling on the ground when the front end of the base is lifted.
[0014] By adopting the above technical solution, since the airport ground is equipped with ground support vehicles for transportation, the device can be hooked to the rear of the ground support vehicle by the towing hook above the towing bar, forming a towing cooperation between the ground support vehicle and the device, making the transfer of the device more labor-saving, faster and more convenient. At the same time, auxiliary wheels are added to the rear side of the base, which only contact the ground when the front end of the base is lifted and transferred, making the transfer of the device smoother and not affecting the stability when the device is in operation.
[0015] The present invention is further configured to include a multifunctional valve, wherein the transition channel is provided with a branch channel extending rearward to the rear side of the base, the inlet end of the multifunctional valve is provided with an inlet pipe that is inserted into the branch channel and threadedly engaged with the branch channel, and the outlet end is provided with an outlet pipe for connecting a hose.
[0016] By adopting the above technical solution, during aircraft parking, there is a need to de-ice external aircraft devices in cold environments or cool aircraft brakes in high-temperature environments. At this time, the staff connects the hose to the exhaust pipe and opens the multi-function valve. Part of the airflow generated by the ground air conditioner will be sprayed out after passing through the branch channel-intake pipe-multi-function valve-exhaust pipe-hose. The hot airflow is used to de-ice external aircraft devices in cold environments, or the cold airflow is used to cool aircraft brakes in high-temperature environments. This makes the function of the device more diversified and saves the increased cost and inconvenience of laying an additional air conditioning duct for de-icing or cooling.
[0017] The present invention is further configured such that: two rings of vertically arranged limiting ribs are arranged around the lower outer periphery of the vertically connected pipe.
[0018] By adopting the above technical solution, it is necessary to pre-fix the retractable corrugated pipe at the docking position of the aircraft. After the base is transported to the position directly below the aircraft where the air conditioning duct is connected, the corrugated pipe is stretched downward until it fits the vertical docking pipe. The limiting rib at the lower end of the vertical docking pipe will engage with the corrugated pattern on the inside of the corrugated pipe, completing the docking step between the vertical docking pipe and the aircraft. At this time, the vertical docking pipe forms a reinforced skeleton with guiding function inside the corrugated pipe, avoiding the corrugated pipe from bending due to the impact of strong winds, which would affect the ventilation efficiency. Attached Figure Description
[0019] Figure 1 The three-dimensional representation of the specific embodiment of this utility model Figure 1 ;
[0020] Figure 2 The three-dimensional representation of the specific embodiment of this utility model Figure 2 ;
[0021] Figure 3 This is a cross-sectional view of a specific embodiment of the present utility model;
[0022] Figure 4 This is a schematic diagram of the counterweight hole layout;
[0023] Figure 5 An exploded view of the counterweight module and counterweight hole;
[0024] Figure 6 This is a schematic diagram of the state transition in a specific embodiment of the present invention. Detailed Implementation
[0025] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0026] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0027] like Figure 1 — Figure 6As shown, this utility model discloses a multifunctional ground air conditioning duct bending transition device, including a base 1 placed on the ground. The base 1 has an arc-shaped transition channel 11, with the two ends of the transition channel 11 located on the upper end face a and the front side face b of the base 1, respectively. A vertical connecting pipe 2, which is connected to the transition channel 11 and connects to the aircraft, is fixedly installed on the upper end face a of the base 1. A horizontal connecting pipe 3, which is connected to the transition channel 11 and connects to the air conditioning duct, is fixedly installed on the front side face b of the base 1. The base 1 is equipped with a weight adjustment mechanism to adjust the weight of the base 1. When it is necessary to connect the ground air conditioning to the aircraft cabin, the base 1 is first transported to the position directly below the aircraft where the air conditioning duct is connected. Then, it connects to the aircraft through the vertical connecting pipe 2 and the air conditioning duct through the horizontal connecting pipe 3. Finally, the ground air conditioning is turned on to deliver airflow to the aircraft cabin to maintain a comfortable cabin environment. During this process, since the tarmac is generally an open square, strong winds are bound to impact the base 1. The weight adjustment mechanism needs to adjust the weight of the base 1 to a stable weight that can withstand the impact. The above structure has the following advantages: ① The rigid channel structure inside the base 1 replaces the flexible air conditioning duct to complete the transition from vertical to horizontal. The channel will not deform due to material or weather conditions, thus ensuring ventilation efficiency and helping to maintain the comfort of the cabin environment; ② A weight adjustment mechanism is added to adjust the weight of the base 1 as needed. On the one hand, it can effectively resist the impact of strong winds on the base 1. In the working state, this device can stably maintain the vertical alignment with the aircraft docking position, thus ensuring ventilation efficiency. On the other hand, if the weight of the base 1 greatly exceeds the weight used to resist strong winds, the weight of the base 1 can be adjusted, thereby reducing the difficulty of moving the base 1.
[0028] The weight adjustment mechanism includes a counterweight module 5 and a counterweight hole 12. The counterweight hole 12 is located inside the base 1 and is located on the left and right sides of the transition channel 11 and arranged vertically. The counterweight hole 12 is provided with a plug-in port 121 extending to the front side b for plugging and unplugging the counterweight module 5. According to the actual wind impact to be resisted, an appropriate number of counterweight modules 5 are selected and installed in the counterweight hole 12 to make the weight control more precise. At the same time, the plug-in method is used for disassembly and assembly, eliminating the need for fasteners and tools, making disassembly and assembly more convenient.
[0029] The counterweight module 5 is a cylindrical component. The upper end of the counterweight module 5 is provided with a handle 51 for manually rotating the counterweight module 5. The outer circumferential surface of the counterweight module 5 is provided with a spiral recess 52. The counterweight hole 12 is a circular blind hole. The inner circumferential surface of the counterweight hole 12 is provided with a spiral protrusion 122 that is consistent with the shape of the spiral recess 52. When the counterweight module 5 rotates clockwise relative to the counterweight hole 12, the spiral protrusion 122 gradually screws into the spiral recess 52, and the counterweight module 5 gradually inserts into the counterweight hole 12. When the counterweight module 5 rotates counterclockwise relative to the counterweight hole 12, the spiral protrusion 122 gradually screws out of the spiral recess 52, and the counterweight module 5 gradually pulls out of the counterweight hole 12. The counterweight module 5 and the counterweight hole 12 are disassembled and assembled by means of a spiral engagement, which is simple to operate and reliable to install.
[0030] As the counterweight hole 12 gradually decreases in height away from the plug-in port 121, the weight of the counterweight module 5 is utilized effectively. When it is placed in the counterweight hole 12, which gradually decreases in height away from the plug-in port 121, it will not gradually fall off the counterweight hole 12 due to vibration, thus ensuring the reliability of the device.
[0031] A traction rod 6 is provided on both sides of the front side b of the base 1. The height of the traction rod 6 gradually increases as it moves away from the front side b of the base 1. A downward-curving traction hook 61 is provided at the upper end of the traction rod 6. An auxiliary wheel 7 is rotatably provided on the rear side c of the base 1. The auxiliary wheel 7 rolls on the ground when the front end of the base 1 is lifted. Since the airport ground is equipped with ground support vehicles for transportation, the auxiliary wheel 7 can be hooked to the rear of the ground support vehicle through the traction hook 61 above the traction rod 6, forming a traction cooperation between the ground support vehicle and the device. This makes the transfer of the device more labor-saving, faster, and more convenient. At the same time, the auxiliary wheel 7 is added to the rear side c of the base 1, which only contacts the ground when the front end of the base 1 is lifted and transferred. This makes the transfer of the device smoother and does not affect the stability of the device when it is in operation.
[0032] It also includes a multi-functional valve 8, a transition channel 11 with a branch channel 13 extending rearward to the rear side c of the base 1, an air inlet end of the multi-functional valve 8 with an air inlet pipe 81 inserted into and threadedly engaged with the branch channel 13, and an air outlet end with an air outlet pipe 82 for connecting a hose. During aircraft parking, there is a need to de-ice external aircraft devices in cold environments or cool aircraft brakes in high-temperature environments. At this time, the staff connects the hose to the air outlet pipe 82 and opens the multi-functional valve 8. Part of the airflow generated by the ground air conditioner will be sprayed out after passing through the branch channel 13-air inlet pipe 81-multi-functional valve 8-air outlet pipe 82-hose. The hot airflow is used to de-ice external aircraft devices in cold environments, or the cold airflow is used to cool aircraft brakes in high-temperature environments, making the device more versatile and saving the increased cost and inconvenience of arranging an additional air conditioning duct for de-icing or cooling.
[0033] Two rings of vertically arranged limiting ribs 21 are arranged around the lower outer periphery of the vertical connecting pipe 2. The retractable corrugated pipe needs to be fixed in advance at the docking position of the aircraft. After the base 1 is transported to the position directly below the aircraft where the air conditioning duct is connected, the corrugated pipe is stretched downward until it fits the vertical connecting pipe 2. The limiting ribs 21 at the lower end of the vertical connecting pipe 2 will engage with the corrugated pattern on the inner side of the corrugated pipe, completing the docking step between the vertical connecting pipe 2 and the aircraft. At this time, the vertical connecting pipe 2 forms a reinforced skeleton with guiding function inside the corrugated pipe, which prevents the corrugated pipe from bending due to the impact of strong winds and affecting the ventilation efficiency.
[0034] In addition, the other end of the horizontal connecting pipe 3-way passage 11 is provided with a duct connector 31 for connecting the air conditioning duct. The duct connector 31 is a commercially available component of the existing structure. Its structure is not described in detail and does not affect the understanding of the structure.
[0035] like Figure 6 As shown, when this device needs to be transferred, the towing hook 61 of the towing rod 6 is hooked onto the truck bed behind the ground support vehicle. At the same time, since the truck bed behind the ground support vehicle is higher than the base 1, the front end of the base 1 will be lifted, and the auxiliary wheel 7 at the rear end will serve as the contact part between the base 1 and the ground. Under the traction of the ground support vehicle, the device can be quickly transferred.
Claims
1. A multifunctional ground air conditioning duct bending transition device, characterized in that: The system includes a base placed on the ground, with an arc-shaped transition channel inside the base, the two ends of which are located on the upper end face and the front side face of the base, respectively. A vertical connecting pipe that communicates with the transition channel and connects to the aircraft is fixedly installed on the upper end face of the base. A horizontal connecting pipe that communicates with the transition channel and connects to the air conditioning duct is fixedly installed on the front side face of the base. The base is equipped with a weight adjustment mechanism to adjust the weight of the base.
2. The multifunctional ground air conditioning duct bending transition device according to claim 1, characterized in that: The weight adjustment mechanism includes a counterweight module and counterweight holes. The counterweight holes are located inside the base and are arranged vertically on the left and right sides of the transition channel. The counterweight holes are provided with plug-in ports that extend to the front side for the counterweight module to be plugged in and out.
3. The multifunctional ground air conditioning duct bending transition device according to claim 2, characterized in that: The counterweight module is a cylindrical component. A handle for manually rotating the counterweight module is provided on its upper surface. A spiral recess is provided on the outer circumference of the counterweight module. The counterweight hole is a circular blind hole. A spiral protrusion, matching the shape of the spiral recess, is provided on the inner circumference of the counterweight hole. When the counterweight module rotates clockwise relative to the counterweight hole, the spiral protrusion gradually screws into the spiral recess, and the counterweight module gradually inserts into the counterweight hole. When the counterweight module rotates counter-clockwise relative to the counterweight hole, the spiral protrusion gradually screws out of the spiral recess, and the counterweight module gradually pulls out of the counterweight hole.
4. The multifunctional ground air conditioning duct bending transition device according to claim 3, characterized in that: The counterweight hole gradually decreases in height as it moves away from the insertion port.
5. The multifunctional ground air conditioning duct bending transition device according to claim 1, characterized in that: The base has traction rods on both sides of its front side. The traction rods gradually increase in height as they move away from the front side of the base. The upper end of each traction rod has a downward-curving traction hook. The base has an auxiliary wheel that is rotatably mounted on its rear side. The auxiliary wheel rolls on the ground when the front end of the base is lifted.
6. The multifunctional ground air conditioning duct bending transition device according to claim 1, characterized in that: It also includes a multi-functional valve, wherein the transition channel is provided with a branch channel extending rearward to the rear side of the base, the inlet end of the multi-functional valve is provided with an inlet pipe that is inserted into the branch channel and threadedly engaged with the branch channel, and the outlet end is provided with an outlet pipe for connecting a hose.
7. The multifunctional ground air conditioning duct bending transition device according to claim 1, characterized in that: The lower end of the vertically connected pipe is surrounded by two rings of vertically arranged limiting ribs.