Aircraft wind duct transfer trolley

Abstract

The utility model relates to the technical field of airport air pipe switching trolley, provide an airport air pipe switching trolley, including trolley body and air pipe body, the inside fixed air pipe body of trolley body, the both ends of air pipe body are all fixed with adjusting structure. The utility model discloses be provided with traction structure, can provide the rotation degree of freedom for the traction rod through the hinging seat, makes the traction rod swing within a certain angle, under the action of limiting plate, can limit the swing range of traction rod, prevent the traction rod from separating work interval or with other components of trolley body interference because of excessive rotation, when the traction direction changes or the traction force disappears, the elasticity of tension spring can drive the traction rod to return to the initial posture to can ensure the stability of the traction process, conveniently satisfy long distance transfer requirement, realized the device convenient to follow the function of stopping, thereby improved the convenience of this airport air pipe switching trolley when using.

Description

Technical Field

[0001] This utility model relates to the technical field of airport duct transfer carts, and in particular to an airport duct transfer cart. Background Technology

[0002] In airport operations, aircraft ground air conditioning units are generally located on the jet bridge or on the ground, and their positions are relatively fixed. Since different types of aircraft may park on the same jet bridge, the different sizes of the aircraft result in different duct lengths required when connecting the air conditioning pipes. This requires the ducts to be adjustable within a certain range, so an airport duct adapter trolley is used. To address this, patent CN218022241U discloses a transfer trolley for ductwork transfer, relating to the technical field of trolleys. It includes a duct frame for holding ductwork, the duct frame comprising a base plate, side wall frames on both sides of the base plate, a transfer frame at one end of the base plate, and a transfer component for transferring ductwork within the transfer frame. The transfer trolley for ductwork transfer provided by this utility model has a simple structure, low manufacturing cost, and can orderly store ductwork for backup, allowing for rapid transfer when needed, thereby improving work efficiency. While the aforementioned transfer trolley for duct transfer can neatly store ducts for backup and quickly transfer them when needed, thereby improving work efficiency, it is inconvenient to tow it, making it unsuitable for long-distance relocation and for a tow vehicle to pull the trolley around the apron without being able to stop and go as needed, thus saving effort and increasing efficiency. Utility Model Content

[0003] The purpose of this utility model is to provide an airport duct adapter trolley to solve the problem of the inconvenience of towing existing airport duct adapter trolleys.

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution: an airport duct transfer trolley, including a trolley body and a duct body; The trolley body has a fixed air duct body inside, and both ends of the air duct body have adjustable structures. A wind cover is fixed to one side of the trolley body, and a bent pipe is provided on the other side of the trolley body. A louver is fixed to one side of the wind cover. The bottom of the trolley body is fixed with a locking structure, and a traction structure is fixed on one side of the bottom of the trolley body. The traction structure includes a hinge seat fixed to one side of the bottom of the trolley body, a traction rod is hinged inside the hinge seat, and a limit plate is fixed on one side of the top of the hinge seat. A protective component is provided at one end of the duct body.

[0005] When using this device, the traction structure enables it to be easily moved and stopped, thus improving the convenience of using the airport duct transfer trolley; the adjustment structure enables the device to easily adjust the air volume, thus improving the applicability of the airport duct transfer trolley; and the locking structure enables the device to be easily moved and fixed, thus improving the stability of the airport duct transfer trolley during use.

[0006] Preferably, the adjustment structure includes an air duct, a drive shaft, a baffle plate, a fixed housing, a snap-fit ​​groove, a spring-loaded locking plate, and a movable handle. The air duct is fixed to both sides of the air duct body. A drive shaft is installed inside each air duct, and a baffle plate is fixed to the outside of each drive shaft. A fixed housing is fixed to the top of each air duct above the drive shaft. The top of each drive shaft extends to the outside of the fixed housing and is fixed with a movable handle. A spring-loaded locking plate is hinged to one side of the top of each movable handle. Snap-fit ​​grooves are evenly distributed inside the fixed housing. Pressing the spring-loaded locking plate moves one end of it to the outside of the fixed housing. Rotating the movable handle causes the baffle plate to rotate via the drive shaft. Releasing the spring-loaded locking plate allows one end to move into the snap-fit ​​groove under the spring force. Preferably, one end of the air duct on one side of the duct body is fixedly connected to one side of the air cover, and one end of the air duct on the other side of the duct body is fixedly connected to one end of the bend. The spring locking plate and the fixed shell form a locking structure through the locking groove. This fixes the movable handle and the fixed shell together, thereby changing the angle of the wind deflector. The angle of the wind deflector can be adjusted by the interaction of the spring locking plate with different locking grooves, thereby adjusting the air volume.

[0007] Preferably, a hook is fixed to the top of the traction rod, and tension springs are fixed to both sides of the traction rod. The hinge seat provides rotational freedom for the traction rod, allowing it to swing within a certain angle. Under the action of the limiting plate, the swing range of the traction rod is limited, preventing the traction rod from leaving the working area due to excessive rotation or interfering with other parts of the trolley body.

[0008] Preferably, the end of the tension spring furthest from the traction rod is fixedly connected to the outer side of the trolley body. When the traction direction changes or the traction force disappears, the elastic force of the tension spring can drive the traction rod back to its initial position, thereby ensuring the stability of the traction process and facilitating long-distance relocation needs.

[0009] Preferably, the locking structure includes foot supports, directional wheels, a handle, and swivel wheels. The foot supports are evenly fixed to the bottom of the trolley body. Directional wheels are fixed to both ends of one side of the bottom of the trolley body, and swivel wheels are fixed to both ends of the other side of the bottom of the trolley body. A handle is fixed to one side of the top of the trolley body. When the trolley body stops, the three foot supports are stepped on in sequence, creating a braking effect and effectively preventing the trolley body from sliding while stationary.

[0010] Preferably, the foot support is provided in three sets. When a person holds the handle, the directional wheel can move forward, and the person can adjust the direction of rotation of the rear swivel wheel by adjusting the handle left and right, thereby adjusting the driving direction of the trolley body.

[0011] Preferably, the protective assembly includes a protective cover, a rotating handle, and a fixed shaft. The protective cover is disposed at one end of the duct body, a rotating handle is fixed to one side of the protective cover, and a fixed shaft passes through the top of the protective cover.

[0012] Preferably, one end of the fixed shaft is fixedly connected to the outer wall of the duct body. When the protective cover covers the outside of one end of the duct body, it prevents rainwater from entering on rainy days and also prevents foreign objects or dust from entering the interior of the duct body.

[0013] The advantages of the airport ductwork adapter trolley provided by this utility model are as follows: By incorporating a traction structure and a hinged base, the traction rod is provided with rotational freedom, allowing it to swing within a certain angle. The limiting plate restricts the swing range of the traction rod, preventing it from excessively rotating out of the working area or interfering with other components of the trolley. When the traction direction changes or the traction force disappears, the tension spring can return the traction rod to its initial position, ensuring stability during the traction process and facilitating long-distance relocation. This device allows for easy movement and stopping, improving the convenience of using the airport duct transfer trolley. By setting an adjustment structure, pressing the spring-loaded locking plate moves one end of the spring-loaded locking plate to the outside of the fixed shell. At this time, rotating the movable handle will drive the wind deflector to rotate through the transmission shaft, releasing the spring-loaded locking plate. Under the action of the spring force, one end of the spring-loaded locking plate will move into the inside of the locking groove, thereby fixing the movable handle and the fixed shell together, thus changing the angle of the wind deflector. By cooperating with different locking grooves, the angle of the wind deflector can be adjusted, thereby adjusting the air volume. This realizes the function of easy adjustment of air volume of the device, thereby improving the applicability of the airport air duct transfer trolley in use. With a locking structure, when the trolley stops, stepping on the three foot supports in sequence creates a braking effect, effectively preventing the trolley from sliding while stationary. Holding the handle allows the directional wheels to move forward, and adjusting the direction of the rear caster wheels by moving the handle left or right allows the trolley to travel in any direction. This design enables the device to be easily moved and fixed, thereby improving the stability of the airport ductwork adapter trolley during use. Attached Figure Description

[0014] Figure 1 This is a front-view three-dimensional schematic diagram of the present invention; Figure 2 This is a three-dimensional cross-sectional schematic diagram of the adjustment structure of this utility model; Figure 3 This is a three-dimensional schematic diagram of the adjustment structure of this utility model; Figure 4 This is a rear-view three-dimensional schematic diagram of the present invention; Figure 5 This is a top view of the present invention.

[0015] The following are the annotations in the diagram: 1. Cart body; 2. Fan cover; 3. Air duct body; 4. Adjustment structure; 401. Air duct; 402. Drive shaft; 403. Wind deflector; 404. Fixed shell; 405. Snap-fit ​​groove; 406. Spring locking plate; 407. Movable handle; 5. Bend; 6. Traction structure; 601. Traction rod; 602. Tension spring; 603. Hinge seat; 604. Limiting plate; 605. Hook; 7. Locking structure; 701. Foot support; 702. Directional wheel; 703. Handrail; 704. Universal wheel; 8. Louver; 9. Protective components; 901. Protective cover; 902. Rotating handle; 903. Fixed shaft. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Please see Figures 1-5This utility model provides an airport duct transfer trolley, including a trolley body 1 and a duct body 3. The duct body 3 is fixed inside the trolley body 1. Adjustment structures 4 are fixed at both ends of the duct body 3. Each adjustment structure 4 includes an air duct 401, a drive shaft 402, a baffle plate 403, a fixed housing 404, a snap-fit ​​groove 405, a spring-loaded locking plate 406, and a movable handle 407. The air duct 401 is fixed to both sides of the duct body 3. A drive shaft 402 is installed inside each air duct 401. A baffle plate 403 is fixed to the outside of each drive shaft 402. The top of the upper air duct 401 is fixed with a fixed shell 404. The top of the drive shaft 402 extends to the outside of the fixed shell 404 and is fixed with a movable handle 407. A spring locking plate 406 is hinged to one side of the top of the movable handle 407. The fixed shell 404 is evenly provided with locking grooves 405. One end of the air duct 401 on one side of the air duct body 3 is fixedly connected to one side of the air cover 2. One end of the air duct 401 on the other side of the air duct body 3 is fixedly connected to one end of the bend 5. The spring locking plate 406 and the fixed shell 404 form a locking structure through the locking grooves 405.

[0018] Reference Figure 2 and Figure 3 As shown, pressing the spring-loaded locking plate 406 moves one end of the spring-loaded locking plate 406 to the outside of the fixed housing 404. At this time, rotating the movable handle 407 will drive the wind deflector 403 to rotate through the transmission shaft 402. Releasing the spring-loaded locking plate 406, under the action of the spring force, one end of the spring-loaded locking plate 406 will move into the inside of the locking groove 405, thereby fixing the movable handle 407 and the fixed housing 404 to each other, thus changing the angle of the wind deflector 403. By cooperating with different locking grooves 405, the angle of the wind deflector 403 can be adjusted, thereby adjusting the air volume. The wind cover 2 can cool down the aircraft maintenance personnel working on the apron, preventing heatstroke during outdoor work in hot weather. The bend 5 can be connected to the air duct to dissipate heat from the aircraft tires, extend the tire life, reduce operating costs, and improve operating efficiency.

[0019] A fan cover 2 is fixed to one side of the interior of the trolley body 1, and a curved pipe 5 is provided on the other side of the interior of the trolley body 1. A louver 8 is fixed to one side of the interior of the fan cover 2. A locking structure 7 is fixed to the bottom of the trolley body 1. The locking structure 7 includes a foot support 701, a directional wheel 702, a handrail 703, and a universal wheel 704. The foot support 701 is evenly fixed to the bottom of the trolley body 1. A directional wheel 702 is fixed to both ends of one side of the bottom of the trolley body 1. A universal wheel 704 is fixed to both ends of the other side of the bottom of the trolley body 1. A handrail 703 is fixed to one side of the top of the trolley body 1. Three sets of foot supports 701 are provided.

[0020] Reference Figure 1 and Figure 4As shown, when a person holds the handle 703, the directional wheel 702 can move forward. By adjusting the direction of rotation of the rear universal wheel 704 through the handle 703, the travel direction of the trolley body 1 can be adjusted. When the trolley body 1 stops, the three foot supports 701 are stepped on in sequence. Under the action of the foot supports 701, a braking effect is formed, which effectively prevents the trolley body 1 from sliding in a stationary state.

[0021] A traction structure 6 is fixed to one side of the bottom of the trolley body 1. The traction structure 6 includes a hinge seat 603 fixed to one side of the bottom of the trolley body 1. A traction rod 601 is hinged inside the hinge seat 603. A limit plate 604 is fixed to one side of the top of the hinge seat 603. A hook 605 is fixed to the top of the traction rod 601. Tension springs 602 are fixed to both sides of the traction rod 601. The end of the tension spring 602 away from the traction rod 601 is fixedly connected to the outside of the trolley body 1. A protective component 9 is provided at one end of the air duct body 3. The protective component 9 includes a protective cover plate 901, a rotating handle 902, and a fixed shaft 903. The protective cover plate 901 is provided at one end of the air duct body 3. A rotating handle 902 is fixed to one side of the protective cover plate 901. A fixed shaft 903 passes through the top of the protective cover plate 901. One end of the fixed shaft 903 is fixedly connected to the outer wall of the air duct body 3.

[0022] Reference Figure 1 and Figure 4 As shown, the hook 605 allows the tractor to pull the trolley body 1 around the apron, moving and stopping as needed, saving effort and increasing efficiency. The hinge seat 603 provides rotational freedom for the towing rod 601, allowing it to swing within a certain angle. The limiting plate 604 restricts the swing range of the towing rod 601, preventing it from detaching from the working area or interfering with other parts of the trolley body 1 due to excessive rotation. When the traction direction changes or the traction force disappears, the elastic force of the tension spring 602 can drive the towing rod 601 back to its initial position, thus ensuring the stability of the traction process. When the duct body 3 is not in use, rotating the handle 902 causes the protective cover 901 to rotate outside the fixed shaft 903. When the protective cover 901 covers the outside of one end of the duct body 3, it prevents rainwater from entering and also prevents foreign objects or dust from entering the interior of the duct body 3.

[0023] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An airport duct transfer cart, comprising a cart body (1) and a duct body (3). Its features are: The trolley body (1) has a duct body (3) fixed inside. Both ends of the duct body (3) are fixed with adjustment structures (4). A hood (2) is fixed on one side inside the trolley body (1). A bend (5) is provided on the other side inside the trolley body (1). A louver (8) is fixed on one side inside the hood (2). The bottom end of the trolley body (1) is fixed with a locking structure (7), and a traction structure (6) is fixed on one side of the bottom of the trolley body (1). The traction structure (6) includes a hinge seat (603) fixed on one side of the bottom of the trolley body (1). A traction rod (601) is hinged inside the hinge seat (603). A limit plate (604) is fixed on one side of the top of the hinge seat (603). A protective component (9) is provided at one end of the duct body (3).

2. The airport ductwork adapter trolley according to claim 1, characterized in that: The adjustment structure (4) includes an air duct (401), a drive shaft (402), a baffle plate (403), a fixed shell (404), a snap-fit ​​groove (405), a spring snap-fit ​​plate (406), and a movable handle (407). The air duct (401) is fixed to both sides of the air duct body (3). The air duct (401) is equipped with a drive shaft (402) inside. The drive shaft (402) is equipped with a baffle plate (403) on the outside. The top of the air duct (401) above the drive shaft (402) is equipped with a fixed shell (404). The top of the drive shaft (402) extends to the outside of the fixed shell (404) and is equipped with a movable handle (407). A spring snap-fit ​​plate (406) is hinged to one side of the top of the movable handle (407). The fixed shell (404) is uniformly equipped with snap-fit ​​grooves (405).

3. The airport ductwork adapter trolley according to claim 2, characterized in that: One end of the air duct (401) on one side of the air duct body (3) is fixedly connected to one side of the air cover (2), and one end of the air duct (401) on the other side of the air duct body (3) is fixedly connected to one end of the bend (5). The spring locking plate (406) and the fixing shell (404) form a locking structure through the locking groove (405).

4. The airport ductwork adapter trolley according to claim 1, characterized in that: The top of the traction rod (601) is fixed with a hook (605), and tension springs (602) are fixed on both sides of the traction rod (601).

5. The airport ductwork adapter trolley according to claim 4, characterized in that: The end of the tension spring (602) away from the traction rod (601) is fixedly connected to the outside of the trolley body (1).

6. The airport ductwork adapter trolley according to claim 1, characterized in that: The locking structure (7) includes a foot support (701), a directional wheel (702), a handrail (703), and a universal wheel (704). The foot support (701) is evenly fixed to the bottom of the trolley body (1). The directional wheel (702) is fixed to both ends of one side of the bottom of the trolley body (1), and the universal wheel (704) is fixed to both ends of the other side of the bottom of the trolley body (1). The handrail (703) is fixed to one side of the top of the trolley body (1).

7. The airport ductwork adapter trolley according to claim 6, characterized in that: The foot support (701) is provided in three sets.

8. The airport ductwork adapter trolley according to claim 1, characterized in that: The protective component (9) includes a protective cover (901), a rotating handle (902) and a fixed shaft (903). The protective cover (901) is located at one end of the duct body (3). A rotating handle (902) is fixed on one side of the protective cover (901), and a fixed shaft (903) passes through the top of the protective cover (901).

9. The airport ductwork adapter trolley according to claim 8, characterized in that: One end of the fixed shaft (903) is fixedly connected to the outer wall of the duct body (3).

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