阅读说明：本技术 一种航空餐车的高稳定性底部连接装置 (High-stability bottom connecting device of aviation dining car ) 是由 王遇明 于 2019-10-10 设计创作，主要内容包括：一种航空餐车的高稳定性底部连接装置,涉及航空餐车技术领域,包括车轮,所述车轮的外侧开设有均匀分布的活塞槽,活塞槽的内壁固定连接有弹簧一,弹簧一的外侧固定连接有与活塞槽的内壁活动连接的活塞块,车轮的背面固定连接有气筒,气筒的中部开设有与活塞槽相适配的气腔。该航空餐车的高稳定性底部连接装置,通过活塞杆与活塞块的配合使用,餐车需要固定时,向下踩动踏板,使踏板发生转动,使活塞杆向上移动,通过U型管原理,使活塞块向内侧移动,并且车轮底部会与地面由于负压而吸附在一起,将餐车与地面牢牢吸附在一起,从而达到了高稳定性的效果,保证了餐车的稳定,有效防止餐车溜走误伤乘客,保证了乘客的乘机安全。(The utility model provides a high stability bottom connecting device of aviation dining car, relates to aviation dining car technical field, including the wheel, evenly distributed's piston groove is seted up in the outside of wheel, the inner wall fixedly connected with spring of piston groove, the outside fixedly connected with of spring one and the piston piece of the inner wall swing joint in piston groove, the back fixedly connected with inflator of wheel, the middle part of inflator offer with the air cavity of piston groove looks adaptation. This high stability bottom connecting device of aviation dining car, cooperation through piston rod and piston piece is used, when the dining car needs to be fixed, step on the footboard downwards, make the footboard take place to rotate, make the piston rod rebound, through U type pipe principle, make the piston piece remove to the inboard, and the wheel bottom can be together adsorbed because the negative pressure with ground, firmly adsorb dining car and ground together, thereby the effect of high stability has been reached, the stability of dining car has been guaranteed, prevent effectively that the dining car from slipping away the mistake and hindering the passenger, passenger's the safety of riding the aircraft is guaranteed.)

1. The utility model provides a high stability bottom connecting device of aviation dining car, includes wheel (1), its characterized in that: the wheel is characterized in that piston grooves (2) which are uniformly distributed are formed in the outer side of the wheel (1), a first spring (3) is fixedly connected to the inner wall of each piston groove (2), a piston block (4) which is movably connected with the inner wall of each piston groove (2) is fixedly connected to the outer side of each first spring (3), an air cylinder (5) is fixedly connected to the back of the wheel (1), an air cavity (6) which is matched with the piston grooves (2) is formed in the middle of each air cylinder (5), a piston cylinder (7) is fixedly connected to the top of each air cylinder (5), a piston rod (8) is movably connected to the middle of each piston cylinder (7), a pedal (9) is rotatably connected to the top of each piston rod (8), clamping grooves (10) which are uniformly distributed are formed in the inner wall of each pedal (9), a rotating shaft (11) is movably connected to the middle of each pedal (9), an electromagnetic device (12) is fixedly connected to, a clamping block (14) matched with the clamping groove (10) is fixedly connected to the outer side of the second spring (13), a magnetic block (15) is fixedly connected to the middle of the clamping block (14), and a dining car (16) is fixedly connected to the back of the rotating shaft (11).

2. A high stability bottom attachment arrangement for an airline trolley as claimed in claim 1, wherein: the material of wheel (1) is rubber materials and the total amount of wheel (1) is four, the total amount of piston groove (2) is thirty two and totally four groups, there are eight piston grooves (2) in each group, spring (3) are extension spring.

3. A high stability bottom attachment arrangement for an airline trolley as claimed in claim 1, wherein: the piston blocks (4) are made of hard rubber materials, and the number of the piston blocks (4) is the same as that of the piston grooves (2).

4. A high stability bottom attachment arrangement for an airline trolley as claimed in claim 1, wherein: the material of the gas cylinders (5) is steel and the total number of the gas cylinders (5) is four.

5. A high stability bottom attachment arrangement for an airline trolley as claimed in claim 1, wherein: the air cavity (6) is cylindrical in shape, and the diameter of the air cavity (6) is smaller than that of the wheel (1).

6. A high stability bottom attachment arrangement for an airline trolley as claimed in claim 1, wherein: the piston cylinder (7) is made of steel materials, and the bottom of the piston cylinder (7) penetrates through and extends to the middle of the air cavity (6).

7. A high stability bottom attachment arrangement for an airline trolley as claimed in claim 1, wherein: the material of footboard (9) is steel material and the total quantity of footboard (9) is four, the shape of draw-in groove (10) is triangle-shaped and the quantity of draw-in groove (10) is the same with the quantity of fixture block (14).

8. A high stability bottom attachment arrangement for an airline trolley as claimed in claim 1, wherein: the magnetism of the outer side of the electromagnetic generating device (12) is the same as that of the inner side of the magnetic block (15), the total number of the electromagnetic generating devices (12) is four, the second spring (13) is an extension spring, and the clamping block (14) is made of steel materials.

Technical Field

The invention relates to the technical field of aviation dining cars, in particular to a high-stability bottom connecting device of an aviation dining car.

Background

At present, the food delivery trolley used on the civil aviation passenger plane is generally in a rectangular box shape with an open upper surface, 4 or 3 wheels are arranged below the food delivery trolley, and when the passenger plane has dinner, the flight attendant pushes the food delivery trolley to deliver lunch boxes and beverages to the front of passengers from a walkway in the middle of the passenger plane for the passengers to eat.

The dining car needs to be fixed when not in use, so that the phenomenon that the dining car slips away and hits a passenger can be avoided, the passenger can be injured, the current dining car is not stable enough and is complex to fix, so that the fixing often fails, the dining car cannot be completely fixed, and the safety of the passenger is easily threatened.

Therefore, we provide a high stability bottom connecting device of an aviation dining car to solve the above problems, the effect of high stability is achieved through the cooperation of the piston rod and the piston block, the stability of the dining car is guaranteed, the dining car is effectively prevented from sliding away and accidentally injuring passengers, the passenger riding safety is guaranteed, the effect of guaranteeing the fixation and the stability is achieved through the cooperation of the electromagnetic device and the magnetic block, the negative pressure failure is effectively prevented, the stable fixation of the dining car is guaranteed, and the safety of the dining car is improved.

Disclosure of Invention

The invention adopts the following technical scheme for realizing the technical purpose: a high-stability bottom connecting device of an aviation dining car comprises a wheel, wherein piston grooves which are uniformly distributed are formed in the outer side of the wheel, a first spring is fixedly connected to the inner wall of each piston groove, a piston block which is movably connected with the inner wall of each piston groove is fixedly connected to the outer side of the first spring, an air cylinder is fixedly connected to the back side of the wheel, an air cavity which is matched with the piston grooves is formed in the middle of the air cylinder, a piston cylinder is fixedly connected to the top of the air cylinder, a piston rod is movably connected to the middle of the piston cylinder, a pedal is rotatably connected to the top of the piston rod, clamping grooves which are uniformly distributed are formed in the inner wall of the pedal, a rotating shaft is movably connected to the middle of the pedal, an electromagnetic device is fixedly connected to the middle of the rotating shaft, a second spring which is uniformly distributed is fixedly, the back of the rotating shaft is fixedly connected with a dining car.

The invention has the following beneficial effects:

1. this high stability bottom connecting device of aviation dining car, cooperation through piston rod and piston piece is used, when the dining car needs to be fixed, step on the footboard downwards, make the footboard take place to rotate, make the piston rod rebound, through U type pipe principle, make the piston piece remove to the inboard, and the wheel bottom can be together adsorbed because the negative pressure with ground, firmly adsorb dining car and ground together, thereby the effect of high stability has been reached, the stability of dining car has been guaranteed, prevent effectively that the dining car from slipping away the mistake and hindering the passenger, passenger's the safety of riding the aircraft is guaranteed.

2. This high stability bottom connecting device of aviation dining car, cooperation through electricity magnetism generating device and magnetic path is used, the footboard is stepped on the back downwards, do not loosen earlier, connect electricity magnetism generating device power immediately, make electricity magnetism generating device circular telegram and through the mutual repulsion with the magnetic path, extrude the pivot with the fixture block, make fixture block and draw-in groove joint, with the rigidity of footboard, thereby the effect of guaranteeing fixed stability has been reached, effectively prevent the negative pressure inefficacy, the stable of dining car has been guaranteed, the security of dining car has been improved.

Further, the material of wheel is rubber materials and the total number of wheel is four, the total number of piston groove is thirty two and totally four groups, each group has eight piston grooves, spring one is extension spring.

Further, the piston blocks are made of hard rubber materials, the number of the piston blocks is the same as that of the piston grooves, the air cylinders are made of steel materials, and the total number of the air cylinders is four.

Further, the shape of air cavity is cylindric and the diameter of air cavity is less than the diameter of wheel, the material of piston cylinder is steel material and the bottom of piston cylinder is run through and is extended to the air cavity middle part.

Furthermore, the material of footboard is steel material and the total quantity of footboard is four, the shape of draw-in groove is triangle-shaped and the quantity of draw-in groove is the same with the quantity of fixture block.

Furthermore, the magnetism of the outer side of the electromagnetic generating device is the same as that of the inner side of the magnetic block, the total number of the electromagnetic generating devices is four, the second spring is an extension spring, and the clamping block is made of steel materials.

Drawings

FIG. 1 is a schematic view of a wheel according to the present invention;

FIG. 2 is a schematic view of the construction of a cartridge according to the present invention;

FIG. 3 is a schematic view of the pedal structure of the present invention;

FIG. 4 is an enlarged partial view of portion A of FIG. 3 according to the present invention; .

In the figure: 1. a wheel; 2. a piston groove; 3. a first spring; 4. a piston block; 5. an air cylinder; 6. an air cavity; 7. a piston cylinder; 8. a piston rod; 9. a pedal; 10. a card slot; 11. a rotating shaft; 12. an electromagnetic device; 13. a second spring; 14. a clamping block; 15. a magnetic block; 16. a dining car.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, a high-stability bottom connection device for an aviation dining car comprises wheels 1, wherein the wheels 1 are made of rubber materials and the total number of the wheels 1 is four, the total number of piston grooves 2 is thirty-two and four groups, each group comprises eight piston grooves 2, the piston grooves 2 are used for negative pressure adsorption, springs one 3 are extension springs, the outer sides of the wheels 1 are provided with the piston grooves 2 which are uniformly distributed, the inner walls of the piston grooves 2 are fixedly connected with the springs one 3, the springs one 3 are used for enabling the piston blocks 4 to bounce to the outer side, the outer sides of the springs one 3 are fixedly connected with piston blocks 4 movably connected with the inner walls of the piston grooves 2, and the piston blocks 4 are used for negative pressure adsorption.

The material of piston block 4 is hard rubber material and the quantity of piston block 4 is the same with the quantity of piston groove 2, the material of inflator 5 is steel material and the total quantity of inflator 5 is four, the back fixedly connected with inflator 5 of wheel 1, inflator 5 plays the effect of storing air, the middle part of inflator 5 is offered the air cavity 6 with piston groove 2 looks adaptation, air cavity 6 plays the effect of being convenient for gas removal, the shape of air cavity 6 is cylindric and the diameter of air cavity 6 is less than the diameter of wheel 1, the material of piston tube 7 is steel material and the bottom of piston tube 7 runs through and extends to air cavity 6 middle part, the top fixedly connected with piston tube 7 of inflator 5, piston tube 7 plays driven effect, the middle part swing joint of piston tube 7 has piston rod 8, piston rod 8 plays driven effect.

The top of the piston rod 8 is rotatably connected with a pedal 9, the pedal 9 plays a role in transmission and facilitates force application, the pedal 9 is made of steel materials, the total number of the pedal 9 is four, the shape of each clamping groove 10 is triangular, the number of the clamping grooves 10 is the same as that of the clamping blocks 14, the inner wall of the pedal 9 is provided with the clamping grooves 10 which are uniformly distributed, the clamping grooves 10 play a role in limiting rotation of the pedal 9, the middle of the pedal 9 is movably connected with a rotating shaft 11, the rotating shaft 11 plays a role in facilitating rotation of the pedal 9, the middle of the rotating shaft 11 is fixedly connected with an electromagnetic device 12, the electromagnetic device 12 plays a role in transmission, the magnetism outside the electromagnetic device 12 is the same as that inside the magnetic blocks 15, the total number of the electromagnetic devices 12 is four, the spring II 13 is an extension spring, the clamping blocks 14 are made of steel materials, the inner wall of the rotating shaft 11 is, the second spring 13 plays a role in retracting the fixture block 14 into the rotating shaft 11, the fixture block 14 matched with the clamping groove 10 is fixedly connected to the outer side of the second spring 13, the fixture block 14 plays a role in limiting rotation of the pedal 9, the magnetic block 15 is fixedly connected to the middle of the fixture block 14, and the dining car 16 is fixedly connected to the back of the rotating shaft 11.

The working principle is as follows: when the dining car 16 needs to be fixed, the pedal 9 is stepped downwards, the pedal 9 is rotated, the piston rod 8 moves upwards, the piston block 4 moves inwards through the U-shaped pipe principle, the bottom of the wheel 1 and the ground are adsorbed together due to negative pressure, the dining car 16 and the ground are firmly adsorbed together, the effect of high stability is achieved, the stability of the dining car 16 is guaranteed, and the dining car 16 is effectively prevented from sliding away and accidentally injuring passengers.

After the pedal 9 is stepped downwards, the pedal is not loosened firstly, and then the power supply of the electric magnetism generating device 12 is connected, so that the electric magnetism generating device 12 is electrified, the clamping block 14 is extruded out of the rotating shaft 11 through the mutual repulsion action with the magnetic block 15, the clamping block 14 is clamped with the clamping groove 10, the position of the pedal 9 is fixed, the effect of ensuring the fixing stability is achieved, and the negative pressure failure is effectively prevented.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.