Dining car structure

By designing a transmission system for the main body, front axle, rear axle, moving wheels, and adjustable brake components on the airline catering cart, the problem of unstable braking in airline catering carts has been solved, achieving stable braking and improving operational stability, thus enhancing the ease of operation for flight attendants.

CN223686639UActive Publication Date: 2025-12-19QINGDAO HONGFANG AVIATION SPARE MFG CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202520269744.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-19
Publication Date
2025-12-19
Estimated Expiration
2035-02-19

AI Technical Summary

Technical Problem

The lack of stable braking function in airline meal carts during use makes it difficult for flight attendants to deliver meals to passengers stably, affecting the usability of the service.

Method used

A structure including a food cart body, a front axle, a rear axle, a moving wheel, a brake disc, and an adjustable brake assembly was designed. The transmission system driven by a crank handle achieves stable positioning of the brake disc, ensuring that the food cart has stable braking function during use.

Benefits of technology

It achieves stable braking function during the use of airline meal carts, ensuring the stability of flight attendants when distributing meals and improving the practicality of use.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223686639U_ABST
    Figure CN223686639U_ABST
Patent Text Reader

Abstract

The utility model relates to the technical field of dining cars, and discloses a dining car structure which solves the problem that an aviation dining car does not have a stable braking function in the using process and comprises a dining car body, a front shaft rod and a rear shaft rod are arranged at the bottom of the dining car body, and front positioning seats are symmetrically and rotationally installed on the outer side of the front shaft rod. Rear positioning seats are symmetrically and rotationally installed on the outer sides of the rear shaft rods, movable front wheels are fixedly installed at the two ends of the front shaft rods, movable rear wheels are fixedly installed at the two ends of the rear shaft rods, brake discs are symmetrically and fixedly installed on the outer sides of the rear shaft rods, and an adjusting brake assembly is fixedly installed below the push rod and located on the outer side of the dining car body; in the using process of the aviation dining car, the stable braking function is achieved, it is guaranteed that the aviation dining car can achieve better stability when serving meals for passengers, the aviation dining car can be better used by the aviation dining car, and therefore better practicability can be achieved conveniently.
Need to check novelty before this filing date? Find Prior Art

Description

TECHNICAL FIELD

[0001] The utility model belongs to dining car technical field, concretely is a dining car structure. BACKGROUND

[0002] Dining car is a kind of vehicle facility specially used to provide catering service, and the types of dining car are various, and mobile dining car is one of them, and aviation dining car is one of mobile dining car, and aviation dining car is also necessary for storing aircraft meal, when using, the cabin attendant pulls and drives aviation dining car to walk, can greatly slow down manpower, not only storage capacity is large, and person pushes also very labor-saving, and aviation dining car does not have stable brake function in the process of use, leading to that cabin attendant cannot achieve better stability when serving meal for passenger, inconvenient for cabin attendant to use, thereby inconvenient to achieve better practicality. CONTENT OF UTILITY MODEL

[0003] In view of the above situation, to overcome the defects of prior art, the utility model provides a dining car structure, effectively solve the aviation dining car in the process of use, do not have stable brake function, leading to that cabin attendant cannot achieve better stability when serving meal for passenger, inconvenient for cabin attendant to use, thereby inconvenient to achieve better practicality.

[0004] To achieve the above object, the utility model provides the following technical scheme: a dining car structure, including dining car main part, the top of dining car main part is equipped with the article groove, and the inside of article groove is uniformly fixed and installed with three bulkheads, and the top of one side of dining car main part is fixedly installed with push rod, and the bottom of dining car main part is provided with front axle and rear axle, and the outside of front axle is uniformly installed with front locating seat, and the outside of rear axle is uniformly installed with rear locating seat, and the top of front locating seat and rear locating seat is fixedly connected with the bottom of dining car main part, and the both ends of front axle are fixedly installed with mobile front wheel, and the both ends of rear axle are fixedly installed with mobile rear wheel, and the outside of rear axle is fixedly installed with brake disc, and two brake discs are located between two mobile rear wheels, and the below of push rod and located the outside of dining car main part is fixedly installed with adjusting brake assembly.

[0005] Preferably, the adjusting brake assembly comprises a strip-shaped frame, the strip-shaped frame is located below the push rod, the strip-shaped frame is fixedly installed on the outer side of the dining car body, a rotating disc is arranged at the top end of the side away from the dining car body of the strip-shaped frame, a crank handle is fixedly installed at the top end of the side away from the rotating disc of the rotating disc, a drive shaft is fixedly installed at the middle of the side away from the crank handle of the rotating disc, the drive shaft is movably penetrated through and extends into the interior of the strip-shaped frame at the end away from the rotating disc, a positioning shaft seat is rotatably installed at the end away from the rotating disc of the drive shaft, the positioning shaft seat is fixedly installed on the outer side of the dining car body, a drive bevel gear is fixedly installed in the interior of the strip-shaped frame at the outer side of the drive shaft, a speed-increasing bevel gear is meshingly connected at the outer side of the drive bevel gear, a transmission shaft is fixedly installed at the bottom of the speed-increasing bevel gear, positioning blocks are rotatably installed on the outer side of the transmission shaft in a symmetrical manner, the two positioning blocks are fixedly installed on the inner wall of the strip-shaped frame, an adjusting screw is fixedly installed at the bottom of the transmission shaft, a positioning plate is rotatably installed at the top end of the outer side of the adjusting screw, the positioning plate is fixedly installed on the inner wall of the strip-shaped frame, the bottom of the adjusting screw is rotatably connected with the bottom end of the interior of the strip-shaped frame, a threaded movable sleeve is threadedly installed at the top end of the outer side of the adjusting screw, strip-shaped openings are formed through the two sides of the strip-shaped frame, connecting shafts are fixedly installed on the outer side of the threaded movable sleeve in a symmetrical manner, the connecting shafts are located in the interiors of the strip-shaped openings, movable strips are rotatably installed on the connecting shafts, the movable strips are movably penetrated through the strip-shaped openings and extend to the exterior of the strip-shaped frame at the ends away from the connecting shafts, movable shafts are rotatably installed at the ends away from the connecting shafts of the movable strips, movable frames are fixedly installed at the bottoms of the movable shafts, brake rings are fixedly installed on the outer sides of the movable frames, the two brake rings are located between the two brake discs, and the two brake rings are movably installed on the outer side of the rear axle.

[0006] Preferably, a positioning sliding groove is formed through the bottom end of the side away from the dining car body of the strip-shaped frame, a positioning sliding block is slidably and movably installed at the top end of the interior of the positioning sliding groove, and the positioning sliding block is fixedly connected with the outer side of the threaded movable sleeve at the side located in the interior of the strip-shaped frame.

[0007] Preferably, a positioning cross rod is slidably and movably installed in the interior of the movable frame, connecting frames are fixedly installed at the two ends of the positioning cross rod, and the two connecting frames are fixedly installed on the outer side of the bottom end of the dining car body in a symmetrical manner.

[0008] Compared with the prior art, the utility model has the advantages that:

[0009] 1) In the working process, the mutual action of the dining car body, the front axle, the front positioning seat, the movable front wheel, the rear axle, the rear positioning seat, the movable rear wheel, the brake disc and the adjusting brake assembly enables the aviation dining car to have stable brake function in the using process, ensures that the cabin crew can achieve better stability when serving passengers with food, so that the cabin crew can better use, thereby achieving better practicality.

[0010] 2) In the work, through the interaction of the set positioning cross rod and the connecting frame, the two movable frames can be moved to achieve better stability, thereby ensuring that the adjusting brake assembly can work stably. BRIEF DESCRIPTION OF DRAWINGS

[0011] The accompanying drawings are used to provide a further understanding of the present application, and constitute a part of the specification, and are used to explain the present application together with embodiments of the present application, and do not constitute a limitation on the present application.

[0012] In the drawings:

[0013] Figure 1 It is a structural schematic view of a dining car structure of the present application;

[0014] Figure 2 It is a structural schematic view of a dining car main body bottom structure of the present application;

[0015] Figure 3 It is a structural schematic view of an adjusting brake assembly of the present application;

[0016] Figure 4 It is a structural schematic view of a strip-shaped frame internal structure of the present application.

[0017] In the drawings: 1, dining car main body; 2, storage groove; 3, partition plate; 4, push rod; 5, front shaft rod; 7, rear shaft rod; 8, front positioning seat; 9, rear positioning seat; 10, moving front wheel; 11, moving rear wheel; 12, brake disc; 13, adjusting brake assembly; 14, strip-shaped frame; 15, rotating disc; 16, crank handle; 17, driving shaft rod; 18, positioning shaft seat; 19, driving bevel gear; 20, speed increasing bevel gear; 21, transmission shaft rod; 22, positioning block; 23, adjusting screw rod; 24, positioning plate; 25, threaded movable sleeve; 26, strip-shaped opening; 27, connecting shaft; 28, movable strip; 29, movable shaft; 30, movable frame; 31, brake ring; 32, positioning sliding groove; 33, positioning sliding block; 34, positioning cross rod; 35, connecting frame. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application; based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0019] Embodiment one, by Figure 1 , Figure 2 , Figure 3 and Figure 4The utility model relates to a dining car structure, including dining car main body 1, the top of dining car main body 1 is set with the article groove 2, and the inside of article groove 2 evenly fixed mounting has three bulkheads 3, and one side top of dining car main body 1 is fixedly installed with push rod 4, and the bottom of dining car main body 1 is provided with front axle 5 and rear axle 7, and the outside of front axle 5 is evenly installed with front locating seat 8, and the outside of rear axle 7 is evenly installed with rear locating seat 9, and the top of front locating seat 8 and rear locating seat 9 is fixedly connected with the bottom of dining car main body 1, and the both ends of front axle 5 are fixedly installed with mobile front wheel 10, and the both ends of rear axle 7 are fixedly installed with mobile rear wheel 11, and the outside of rear axle 7 is fixedly installed with brake disc 12, and two brake discs 12 are located between two mobile rear wheels 11, and the outside of dining car main body 1 below push rod 4 is fixedly installed with adjusting brake assembly 13;

[0020] Adjusting brake assembly 13 includes strip frame 14, and strip frame 14 is located below push rod 4, and strip frame 14 is fixedly installed on the outside of dining car main body 1, and the top of the side of strip frame 14 away from dining car main body 1 is provided with rotating disc 15, and the top of the side of rotating disc 15 away from strip frame 14 is fixedly installed with handle 16, and the middle of the side of rotating disc 15 away from handle 16 is fixedly installed with drive shaft 17, and one end of drive shaft 17 away from rotating disc 15 is movably penetrated and extends to the inside of strip frame 14, and one end of drive shaft 17 away from rotating disc 15 is rotatably installed with locating shaft seat 18, and locating shaft seat 18 is fixedly installed on the outside of dining car main body 1, and the inside of strip frame 14 and the outside of drive shaft 17 are fixedly installed with drive bevel gear 19, and the outside of drive bevel gear 19 is meshedly connected with speed-increasing bevel gear 20, and the bottom of speed-increasing bevel gear 20 is fixedly installed with transmission shaft 21, and the outside of transmission shaft 21 is rotatably installed with locating block 22, and two locating blocks 22 are fixedly installed on the inner wall of strip frame 14;

[0021] The bottom of the transmission shaft rod 21 is fixedly provided with an adjusting screw rod 23, the top end of the adjusting screw rod 23 is rotatably provided with a positioning plate 24, the positioning plate 24 is fixedly provided on the inner wall of the strip-shaped frame 14, the bottom of the adjusting screw rod 23 is rotatably connected with the inner bottom end of the strip-shaped frame 14, the top end of the adjusting screw rod 23 is screwedly provided with a threaded movable sleeve 25, a positioning sliding groove 32 is formed in the bottom end of the side of the strip-shaped frame 14 away from the dining car body 1, a positioning sliding block 33 is slidably and penetratingly provided in the inner top end of the positioning sliding groove 32, and the positioning sliding block 33 is fixedly connected with the outer side of the threaded movable sleeve 25 on the side in the strip-shaped frame 14, strip-shaped openings 26 are formed in the two sides of the strip-shaped frame 14, connecting shafts 27 are symmetrically and fixedly provided on the outer side of the threaded movable sleeve 25 and located in the strip-shaped openings 26, movable strips 28 are rotatably provided on the connecting shafts 27, the movable strips 28 are movably and penetratingly provided in the strip-shaped openings 26 and extend to the outside of the strip-shaped frame 14 away from the connecting shafts 27, movable shafts 29 are rotatably provided on the ends of the movable strips 28 away from the connecting shafts 27, movable frames 30 are fixedly provided on the bottoms of the movable shafts 29, positioning cross rods 34 are slidably and penetratingly provided in the movable frames 30, connecting frames 35 are fixedly provided on the two ends of the positioning cross rods 34 and symmetrically fixedly provided on the outer bottom end of the dining car body 1, brake rings 31 are fixedly provided on the outer sides of the movable frames 30, and the two brake rings 31 are movably provided on the outer sides of the rear shaft rods 7.

[0022] In use, through the interaction of the dining car body 1, the front shaft rod 5, the front positioning seat 8, the movable front wheel 10, the rear shaft rod 7, the rear positioning seat 9, the movable rear wheel 11, the brake disc 12 and the adjusting brake assembly 13, the aviation dining car has stable brake function in use, ensures that the cabin crew can achieve better stability when serving passengers, so as to facilitate the cabin crew to use better, so as to facilitate better practicality, and through the interaction of the positioning cross rod 34 and the connecting frame 35, the two movable frames 30 can be moved to facilitate better stability, so as to ensure that the adjusting brake assembly 13 can work stably.

[0023] Working principle: when the trolley body 1 needs to be braked and positioned, the rotating disc 15 is driven to rotate by the handle 16, the rotating disc 15 drives the drive shaft 17 to rotate, the drive shaft 17 drives the drive bevel gear 19 to rotate, the drive bevel gear 19 drives the speed-increasing bevel gear 20 to rotate, the speed-increasing bevel gear 20 drives the transmission shaft 21 to rotate inside the two positioning blocks 22, which can ensure better stability of the transmission shaft 21 during rotation, at the same time, the transmission shaft 21 drives the adjusting screw 23 to rotate, the adjusting screw 23 drives the threaded movable sleeve 25 to move downward, the threaded movable sleeve 25 drives the positioning sliding block 33 to slide inside the positioning sliding groove 32, which can ensure better stability of the threaded movable sleeve 25 during movement, at the same time, the threaded movable sleeve 25 drives the connecting shaft 27 to move downward, the connecting shaft 27 drives the movable strip 28 to move, the movable strip 28 drives the movable frame 30 to slide outside the positioning cross bar 34 through the movable shaft 29, which can ensure better stability of the movable frame 30 during movement, at the same time, the movable frame 30 drives the brake ring 31 to move, at this time, the two brake rings 31 move away from each other, the brake ring 31 moves into contact with the outside of the brake disc 12 and positions the brake disc 12, so that the rear axle 7 can be positioned, thereby achieving brake positioning of the moving rear wheel 11 and completing the positioning and braking operation of the trolley body 1, then stop rotating the rotating disc 15, when the brake state needs to be released, reverse rotation of the rotating disc 15 driven by the handle 16 can be achieved, so that the aircraft trolley has stable braking function during use, which can ensure better stability of the flight attendant when serving passengers, so as to facilitate better use of the flight attendant, thereby achieving better practicality.

Claims

1. A dining car structure comprising a dining car main body (1), characterized by: The top of the dining car body (1) is provided with a storage groove (2), and the inside of the storage groove (2) is uniformly and fixedly provided with three partition plates (3); one side top of the dining car body (1) is fixedly provided with a push rod (4); the bottom of the dining car body (1) is provided with a front shaft (5) and a rear shaft (7); the outer side of the front shaft (5) is symmetrically and rotatably provided with a front positioning seat (8); the outer side of the rear shaft (7) is symmetrically and rotatably provided with a rear positioning seat (9); the top of the front positioning seat (8) and the rear positioning seat (9) is fixedly connected with the bottom of the dining car body (1); the two ends of the front shaft (5) are fixedly provided with a movable front wheel (10); the two ends of the rear shaft (7) are fixedly provided with a movable rear wheel (11); the outer side of the rear shaft (7) is fixedly provided with a brake disc (12); two brake discs (12) are located between the two movable rear wheels (11); the lower side of the push rod (4) and the outer side of the dining car body (1) are fixedly provided with an adjusting brake assembly (13).

2. A trolley structure according to claim 1, wherein: The adjusting brake assembly (13) comprises a strip-shaped frame (14), the strip-shaped frame (14) is located below the push rod (4), the strip-shaped frame (14) is fixedly installed on the outer side of the dining car body (1), a rotating disc (15) is arranged at the top end of the side, away from the dining car body (1), of the strip-shaped frame (14), a crank handle (16) is fixedly installed on the top end of the side, away from the strip-shaped frame (14), of the rotating disc (15), a driving shaft rod (17) is fixedly installed on the middle of the side, away from the crank handle (16), of the rotating disc (15), one end of the driving shaft rod (17), away from the rotating disc (15), is movably penetrated through and extends into the inside of the strip-shaped frame (14), a positioning shaft seat (18) is rotatably installed on the end of the driving shaft rod (17), away from the rotating disc (15), and the positioning shaft seat (18) is fixedly installed on the outer side of the dining car body (1), a driving bevel gear (19) is fixedly installed on the inside of the strip-shaped frame (14) and on the outside of the driving shaft rod (17), a speed-increasing bevel gear (20) is meshedly connected to the outside of the driving bevel gear (19), a transmission shaft rod (21) is fixedly installed on the bottom of the speed-increasing bevel gear (20), positioning blocks (22) are rotatably installed on the outside of the transmission shaft rod (21) in a symmetrical manner, both of the positioning blocks (22) are fixedly installed on the inner wall of the strip-shaped frame (14), an adjusting screw rod (23) is fixedly installed on the bottom of the transmission shaft rod (21), a positioning plate (24) is rotatably installed on the top end of the outside of the adjusting screw rod (23) and fixedly installed on the inner wall of the strip-shaped frame (14), the bottom of the adjusting screw rod (23) is rotatably connected with the bottom end of the inside of the strip-shaped frame (14), a threaded movable sleeve (25) is screwedly installed on the top end of the outside of the adjusting screw rod (23), strip-shaped openings (26) are formed on the two sides of the strip-shaped frame (14), connecting shafts (27) are fixedly installed on the outside of the threaded movable sleeve (25) in a symmetrical manner and located in the inside of the strip-shaped openings (26), movable strips (28) are rotatably installed on the connecting shafts (27), one end of the movable strips (28), away from the connecting shafts (27), is movably penetrated through the strip-shaped openings (26) and extends to the outside of the strip-shaped frame (14), movable shafts (29) are rotatably installed on the end of the movable strips (28), away from the connecting shafts (27), and the bottom of the movable shafts (29) is fixedly installed with movable frames (30), brake rings (31) are fixedly installed on the outside of the movable frames (30) and located between the two brake discs (12), and the two brake rings (31) are movably installed on the outside of the rear shaft rod (7).

3. A trolley structure according to claim 2, wherein: The bottom end of the side, away from the dining car body (1), of the strip-shaped frame (14) is movably penetrated through and formed with a positioning sliding groove (32), a positioning sliding block (33) is movably penetrated and installed on the inside top end of the positioning sliding groove (32) and fixedly connected with the outside of the threaded movable sleeve (25) on the side of the inside of the strip-shaped frame (14).

4. The structure of a dining car according to claim 2, wherein: The inside of the movable frame (30) is movably penetrated and installed with a positioning cross rod (34), the two ends of the positioning cross rod (34) are fixedly installed with connecting frames (35) which are fixedly installed on the outer bottom end of the dining car body (1) in a symmetrical manner.