Limiting structure and air-riding mobile dining car thereof
By designing a classification limit structure and a mobile limit structure on a mobile dining car, the problems of food chaos and dining car slip are solved, and the classification and placement of food and the safe use of the dining car are realized.
Patent Information
- Application Number
- CN202421171209.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-27
- Publication Date
- 2025-02-18
- Estimated Expiration
- 2034-05-27
AI Technical Summary
When used in existing mobile dining trucks, food is prone to confusion and causing odor, and the lack of limit measures causes the dining truck to slip, which poses safety risks.
A limit structure is designed, including a classified limit structure and a moving limit structure. The classification limit structure realizes the classification and positioning of food through the cooperation of the serrated rack, jagging plate and rotor; the moving limit structure prevents the dining truck from slipping through the combination of pulleys, bottom plates and buffer springs.
It effectively avoids the odor problem caused by food chaos, ensures the classification and cleaning of food; at the same time, the limit structure prevents the dining truck from slipping, improving the safety of use.
Smart Images
Figure CN222496645U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of aviation service equipment, and in particular relates to a limiting structure and a mobile dining car for flight attendants. Background Art
[0002] When flying, flight attendants usually push a food cart to provide food services to passengers. Mobile food carts are usually used to store airplane meals, drinks and other food, which are then pushed by flight attendants and distributed to passengers one by one.
[0003] When using existing dining cars, food and drinks are usually placed together in the dining car and arranged in an orderly manner. This method has no clear limit for different foods, which makes it easy for the foods to be mixed up and cause odors to mix, thus affecting passengers' eating. Furthermore, most dining cars do not have limit measures on the movement method, which makes it easy for the dining cars to slip when in use, thus causing safety accidents.
[0004] In view of this, the present utility model is proposed. Utility Model Content
[0005] In order to solve the above technical problems, the basic concept of the technical solution adopted by the utility model is:
[0006] A limiting structure, comprising:
[0007] A classification limiting structure, which is used to limit the arrangement and placement of food items. The classification limiting structure includes a sawtooth bar, a cardboard, a dining box, a moving block and a rotating wheel. The cardboard is movably arranged at both ends of the interior of the moving block, the sawtooth bar is slidably arranged inside the dining box, the moving block is slidably arranged on one side of the dining box, and the rotating wheel is rotatably arranged between the dining box and the moving block;
[0008] A movable limiting structure, wherein the elasticity of the movable limiting structure is used to prevent slipping, and the movable limiting structure comprises a pulley, a base plate, a connecting rod and a slider, wherein the pulley is fixedly arranged at the bottom of the base plate, the base plate and the slider are both rotatably connected to the connecting rod, and the base plate is located directly below the sawtooth bar.
[0009] As a preferred embodiment of the utility model, two sawtooth bars are symmetrically arranged, saw teeth are arranged on opposite sides of the two sawtooth bars, the lunch box is a square box body structure, square through holes are opened at the two upper corners of the lunch box, and the square through holes slide on the sawtooth bars.
[0010] As a preferred embodiment of the utility model, a circular hole is opened inside one side of the lunch box, and a groove block is fixedly connected to one side of the lunch box. The groove block is a square ring, and a rotating wheel is rotatably arranged in the groove block. The rotating wheel consists of an eccentric wheel and a cylinder, the cylinder is rotatably connected in the circular hole, and the eccentric wheel is rotatably connected in the groove block, and a handle for controlling the direction is fixedly arranged at a position of the eccentric wheel away from the center of the circle.
[0011] As a preferred embodiment of the utility model, the moving block is a U-shaped bar block, the center of the U-shaped bar block is a U-shaped slide, a rotating hole is opened inside the moving block, the rotating hole is located at the center of the U-shaped slide, the U-shaped slide slides on the groove block, the rotating hole rotates the cylinder connected to the rotating wheel, and the handle is located on the side of the moving block away from the rotating wheel.
[0012] As a preferred embodiment of the utility model, nail-shaped holes are provided at both ends of the moving block, and the nail-shaped holes are slidably connected to a card plate, the card plate is composed of a nail-shaped column and a square plate, and the upper and lower ends of the square plate are respectively provided with chamfers in different directions, a tension spring is fixedly arranged between the nail-shaped column and the nail-shaped hole, the card plate is elastically connected to the moving block through the tension spring, and the card plate is slidably connected to the teeth of the sawtooth bar through chamfers in different directions.
[0013] As a preferred embodiment of the utility model, hinge seats are fixedly connected at the four corners of the top surface of the base plate, pulleys are fixedly provided at the four corners of the bottom surface of the base plate by bolts, a rotating column is fixedly provided in the hinge seat, through holes are respectively provided at both ends of the connecting rod, the rotating column rotates in the through hole at one end, and different buffer springs are fixedly connected next to the four hinge seats.
[0014] As a preferred embodiment of the utility model, the other end of the connecting rod is rotatably connected to a rotating shaft in the through hole, and the rotating shaft is fixedly set in the slider. The slider is a U-shaped block, and a sliding hole is opened on the top of the slider. A fixed column is slidably connected in the sliding hole. There are four sliders, and a resistance spring is fixedly set between every two sliders. Every two sliders are elastically connected to each other through the resistance spring.
[0015] A mobile dining car for flight attendants comprises a dining car body, wherein the interior of the dining car body is provided with all of the above-mentioned limiting structures, wherein the sawtooth bars are symmetrically arranged above the dining car body, the sawtooth bars are fixedly connected to the inner wall surface of the dining car body, the fixing column is fixedly arranged at the bottom of the dining car body, the bottom plate and the interior of the dining car body are fixedly provided with springs, the bottom plate is elastically connected to the interior and lower part of the dining car body through a buffer spring, a pedal is fixedly connected to one side of the bottom of the dining car body, and the pedal is located directly below two pulleys.
[0016] Compared with the prior art, the utility model has the following beneficial effects:
[0017] 1. By setting up a classification limit structure, the direction of the rotating wheel is adjusted by the handle, and the direction of the rotating wheel is used to control the orientation of the cardboard, thereby controlling the movement direction between the cardboard and the sawtooth bar, and then using the cardboard to lock the position of the sawtooth bar, thereby controlling the classification distance between the meal box and the dining car body, so as to classify and limit different foods, thereby avoiding the odor caused by food confusion and ensuring the food safety of passengers.
[0018] 2. By setting up a mobile limiting structure, the staff can step on the pedal to move the entire dining car body down to contact the ground, and then shrink the bottom plate under the action of the buffer spring, while ensuring that the pulley is parallel to the bottom of the dining car body and contacts the ground. In this way, the movement of the dining car body can be limited to avoid the slip of the dining car body during use, thereby avoiding safety accidents.
[0019] The specific implementation modes of the present utility model are further described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] In the attached picture:
[0021] Figure 1 It is an overall schematic diagram of the utility model;
[0022] Figure 2 This is a schematic diagram of the classification limit structure of the utility model;
[0023] Figure 3 It is a transverse cross-sectional schematic diagram of the utility model;
[0024] Figure 4 It is a longitudinal cross-sectional schematic diagram of the utility model;
[0025] Figure 5 It is a schematic diagram of the movable limiting structure of the utility model.
[0026] In the figure: 10, pedal; 11, pulley; 12, serrated bar; 13, cardboard; 14, handle; 15, lunch box; 16, slot block; 17, moving block; 18, rotating wheel; 19, tension spring; 20, buffer spring; 21, fixed column; 22, bottom plate; 23, connecting rod; 24, slider; 25, resistance spring. DETAILED DESCRIPTION
[0027] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. The following embodiments are used to illustrate the utility model.
[0028] A limiting structure, such as Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, it includes a classification limiting structure, which is used to limit the arrangement and placement of meals. The classification limiting structure includes a sawtooth bar 12, a card plate 13, a lunch box 15, a moving block 17 and a rotating wheel 18. The card plate 13 is movably arranged at both ends of the inside of the moving block 17, the sawtooth bar 12 is slidably arranged inside the lunch box 15, the moving block 17 is slidably arranged on one side of the lunch box 15, and the rotating wheel 18 is rotatably arranged between the lunch box 15 and the moving block 17; a moving limiting structure, the moving limiting structure is elastically used to prevent slipping, and the moving limiting structure includes a pulley 11, a bottom plate 22, a connecting rod 23 and a slider 24. The pulley 11 is fixedly arranged at the bottom of the bottom plate 22, and the bottom plate 22 and the slider 24 are both rotatably connected to the connecting rod 23. The bottom plate 22 is located directly below the sawtooth bar 12.
[0029] The working principle is as follows: the classification limiting structure is arranged above the dining car body, and the moving limiting structure is arranged below the dining car body. By setting the classification limiting structure, the direction of the card plate 13 is controlled by adjusting the direction of the rotating wheel 18, so that the moving direction of the card plate 13 and the sawtooth bar 12 is controlled by using the different orientations of the card plate 13, and the movement between the card plate 13 and the sawtooth bar 12 is controlled by pulling the moving block 17 and using the connection relationship between the card plate 13 and the moving block 17, so that the position of the sawtooth bar 12 is locked by the card plate 13, so as to control the classification spacing between the meal box 15 and the inside of the dining car body, so as to classify and limit different foods, so as to avoid the cross-flavor caused by the confusion of food and ensure the use of passengers; by setting the moving limiting structure, the staff presses the entire dining car body downward to make the bottom of the dining car body contact the ground, and at this time, it is ensured that the pulley 11 and the bottom of the dining car body are parallel to the ground, so that the movement of the dining car body is limited, and the slippage of the dining car body during use is avoided, thereby avoiding safety accidents.
[0030] like Figure 1 and Figure 2 As shown, two sawtooth bars 12 are symmetrically arranged, and saw teeth are arranged on opposite sides of the two sawtooth bars 12. The lunch box 15 is a square box structure, and square through holes are opened at the upper two corners of the lunch box 15, and the square through holes slide on the sawtooth bars 12; Figure 2 As shown, a circular hole is opened inside one side of the lunch box 15, and a slot block 16 is fixedly connected to one side of the lunch box 15. The slot block 16 is a square ring. A rotating wheel 18 is rotatably arranged in the slot block 16. The rotating wheel 18 consists of an eccentric wheel and a cylinder. The cylinder is rotatably connected in the circular hole, and the eccentric wheel is rotatably connected in the slot block 16. A handle 14 for controlling the direction is fixedly arranged at a position of the eccentric wheel away from the center of the circle; Figure 2As shown, the moving block 17 is a U-shaped bar, the center of the U-shaped bar is a U-shaped slide, a rotating hole is opened inside the moving block 17, the rotating hole is located at the center of the U-shaped slide, the U-shaped slide slides on the groove block 16, the rotating hole rotates the cylinder connected to the rotating wheel 18, and the handle 14 is located on the side of the moving block 17 away from the rotating wheel 18; Figure 1 , Figure 2 and Figure 3 As shown, nail-shaped holes are provided at both ends of the moving block 17, and the nail-shaped holes are slidably connected to the clamping plate 13. The clamping plate 13 is composed of a nail-shaped column and a square plate. The upper and lower ends of the square plate are respectively provided with chamfers in different directions. A tension spring 19 is fixedly arranged between the nail-shaped column and the nail-shaped hole. The clamping plate 13 is elastically connected to the moving block 17 through the tension spring 19, and the clamping plate 13 is slidably connected to the saw teeth of the sawtooth bar 12 through chamfers in different directions.
[0031] The specific implementation is as follows. First, the handle 14 is rotated. Since the handle 14 for controlling the direction is fixedly provided at a position away from the center of the eccentric wheel, the rotation of the handle 14 will drive the sliding of the moving block 17 on the slot block 16. When the eccentric wheel rotates so that the cylinder is located above the slot block 16, the moving block 17 is located above the slot block 16. At the same time, the chamfer below the card plate 13 contacts the sawtooth bar 12. At this time, by pulling the lunch box 15, the square through hole of the lunch box 15 moves on the sawtooth bar 12. With the elastic force of the tension spring 19, the card plate 13 is able to move The block 17 slides and retracts in the internal nail-shaped hole. When the lunch box 15 reaches the appropriate position, stop pulling, and the chamfer of the card plate 13 will clamp and lock the saw teeth of the serrated bar 12. The same principle is used to turn the handle 14. When the cylinder is located below the slot block 16, the moving block is located below the slot block 16. At this time, the chamfer above the card plate contacts the serrated bar 12. At this time, the movement direction of the lunch box 15 is opposite. It should be noted here that the card plate 13 has two chamfers, one above and one below, and the directions of the two chamfers are different, so chamfers in different directions will make the movement direction of the card plate 13 different.
[0032] like Figure 1 , Figure 4 and Figure 5 As shown, hinge seats are fixedly connected at the four corners of the top surface of the bottom plate 22, pulleys 11 are fixedly arranged at the four corners of the bottom surface of the bottom plate 22 by bolts, a rotating column is fixedly arranged in the hinge seat, and through holes are respectively opened at both ends of the connecting rod 23, and the rotating column rotates in the through hole at one end, and different buffer springs 20 are fixedly connected beside the four hinge seats; Figure 4 and Figure 5As shown, the other end of the connecting rod 23 is rotatably connected with a rotating shaft in a through hole, and the rotating shaft is fixedly arranged in a slider 24. The slider 24 is a U-shaped block. A sliding hole is opened above the top of the slider 24, and a fixed column 21 is slidably connected in the sliding hole. Four sliders 24 are provided, and a resistance spring 25 is fixedly arranged between every two sliders 24. Every two sliders 24 are elastically connected to each other through the resistance spring 25; a mobile dining car for flight passengers includes a dining car body, and a limiting structure of any of the above items is provided inside the dining car body, a serrated bar 12 is symmetrically arranged above the dining car body, the serrated bar 12 is fixedly connected to the inner wall surface of the dining car body, the fixed column 21 is fixedly arranged at the bottom of the dining car body, a spring 20 is fixedly arranged on the bottom plate 22 and the inside of the dining car body, and the bottom plate 22 is elastically connected to the inner bottom of the dining car body through the buffer spring 20, and a pedal 10 is fixedly connected to one side of the bottom of the dining car body, and the pedal 10 is located directly below the two pulleys 11.
[0033] The specific implementation method is as follows: when in use, the staff steps on the pedal 10 to move the dining cart downward as a whole. During the downward movement of the dining cart as a whole, the buffer spring 20 will be retracted. At this time, the outer bottom surface of the dining cart as a whole contacts the bottom surface. At the same time, during the retraction of the buffer spring 20, the bottom plate 22 will be moved upward under the action of the buffer spring 20. At this time, the end of the connecting rod 23 in contact with the bottom plate 22 will be squeezed. At this time, the other end of the connecting rod 23 will push the slider 24 to slide on the fixed column 21 due to the squeezing. At this time, the sliders 24 at both ends will move inward. The resistance spring 25 is squeezed. After this process, the bottom plate 22 moves up and the dining car body moves down. At this time, the pulley 11 remains motionless on the ground, the outer bottom surface of the dining car body contacts the ground, and the staff steps on the pedal 10. Based on the same principle, the staff releases the pedal 10. At this time, under the action of the buffer spring 20, the bottom plate 22 is released, the dining car body moves up, the resistance spring 25 is released, and the connecting rod 23 returns with the slider 24. At this time, the pulley 11 contacts the ground, and the staff pushes the dining car body to slide.
[0034] A mobile dining car for flight attendants is provided with the above-mentioned limiting structure so that the device has the characteristics of placing food in a classified manner and preventing the dining car from sliding.
[0035] It is understood that the present invention is described by some embodiments, and those skilled in the art are aware that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.
Claims
1. A limiting structure, characterized in that: include, A classification limiting structure, the classification limiting structure is used to limit the arrangement and placement of food, the classification limiting structure comprises a sawtooth bar (12), a card plate (13), a dining box (15), a moving block (17) and a rotating wheel (18), the card plate (13) is movably arranged at both ends of the interior of the moving block (17), the sawtooth bar (12) is slidably arranged inside the dining box (15), the moving block (17) is slidably arranged on one side of the dining box (15), and the rotating wheel (18) is rotatably arranged between the dining box (15) and the moving block (17); A movable limiting structure, wherein the movable limiting structure is elastic and is used to prevent slippage. The movable limiting structure comprises a pulley (11), a base plate (22), a connecting rod (23) and a slider (24). The pulley (11) is fixedly arranged at the bottom of the base plate (22). The base plate (22) and the slider (24) are both rotatably connected to the connecting rod (23). The base plate (22) is located directly below the sawtooth bar (12).
2. A limiting structure according to claim 1, characterized in that: Two sawtooth bars (12) are symmetrically arranged, and saw teeth are arranged on opposite sides of the two sawtooth bars (12). The lunch box (15) is a square box structure, and square through holes are opened at two upper corners of the lunch box (15), and the square through holes slide on the sawtooth bars (12).
3. A limiting structure according to claim 2, characterized in that: A circular hole is provided inside one side of the lunch box (15), and a groove block (16) is fixedly connected to one side of the lunch box (15). The groove block (16) is a square ring. A rotating wheel (18) is rotatably arranged inside the groove block (16). The rotating wheel (18) consists of an eccentric wheel and a cylinder. The cylinder is rotatably connected in the circular hole, and the eccentric wheel is rotatably connected in the groove block (16). A handle (14) for controlling the direction is fixedly arranged at a position of the eccentric wheel away from the center of the circle.
4. A limiting structure according to claim 3, characterized in that: The moving block (17) is a U-shaped bar block, the center of the U-shaped bar block is a U-shaped sliding mouth, a rotating hole is opened inside the moving block (17), the rotating hole is located at the center of the U-shaped sliding mouth, the U-shaped sliding mouth slides on the groove block (16), the rotating hole rotates a cylinder connected to the rotating wheel (18), and the handle (14) is located on the side of the moving block (17) away from the rotating wheel (18).
5. A limiting structure according to claim 4, characterized in that: Both ends of the moving block (17) are provided with nail-shaped holes, and the nail-shaped holes are slidably connected to a clamping plate (13). The clamping plate (13) is composed of a nail-shaped column and a square plate. The upper and lower ends of the square plate are respectively provided with chamfers in different directions. A tension spring (19) is fixedly arranged between the nail-shaped column and the nail-shaped hole. The clamping plate (13) is elastically connected to the moving block (17) through the tension spring (19), and the clamping plate (13) is slidably connected to the saw teeth of the sawtooth bar (12) through the chamfers in different directions.
6. A limiting structure according to claim 1, characterized in that: The four corners of the top surface of the bottom plate (22) are respectively fixedly connected with hinge seats, and pulleys (11) are fixedly arranged at the four corners of the bottom surface of the bottom plate (22) by bolts. A rotating column is fixedly arranged inside the hinge seat, and through holes are respectively opened at both ends of the connecting rod (23). The rotating column rotates in the through hole at one end, and different buffer springs (20) are respectively fixedly connected next to the four hinge seats.
7. A limiting structure according to claim 6, characterized in that: The other end of the connecting rod (23) is rotatably connected to a rotating shaft in a through hole, and the rotating shaft is fixedly arranged in a slider (24). The slider (24) is a U-shaped block, and a sliding hole is opened above the top of the slider (24). A fixed column (21) is slidably connected in the sliding hole. Four sliders (24) are arranged, and a resistance spring (25) is fixedly arranged between every two sliders (24). Every two sliders (24) are elastically connected to each other through the resistance spring (25).
8. A mobile dining car for flight passengers, comprising a dining car body, characterized in that: A limiting structure according to any one of claims 1 to 7 is provided inside the dining trolley body, the sawtooth bar (12) is symmetrically arranged above the dining trolley body, the sawtooth bar (12) is fixedly connected to the inner wall surface of the dining trolley body, the fixing column (21) is fixedly arranged at the bottom of the dining trolley body, the bottom plate (22) and the inside of the dining trolley body are fixedly provided with a spring (20), the bottom plate (22) is elastically connected to the lower part of the inside of the dining trolley body through a buffer spring (20), a pedal (10) is fixedly connected to one side of the bottom of the dining trolley body, and the pedal (10) is located directly below the two pulleys (11).