Hand brake type semi-self-service aviation dining car

Abstract

The invention relates to a hand brake type semi-self-service aviation dining car which comprises a dining car body, a water receiving module, a braking module and driving wheels, the driving wheels are arranged at the bottom of the dining car body, the braking module is arranged on the dining car body and connected with the driving wheels, the water receiving module is located at the top of the dining car body, and a water tank module is arranged in the dining car body. The water receiving module is connected with the water tank module; the braking module comprises a handle, a vertical rod, a sliding groove, a self-locking assembly and a braking lock, the driving wheel is provided with a braking groove in the rolling direction, and the braking lock is matched with the braking groove in shape; the sliding groove is formed in the dining car body, the vertical rod is slidably arranged in the sliding groove, the handle is connected with one end of the vertical rod and used for driving the vertical rod to move up and down, the other end of the vertical rod is connected with the self-locking assembly, and the self-locking assembly is connected with the brake lock and used for controlling cooperation of the brake lock and the brake groove. Compared with the prior art, the device has the advantages that the hand brake is convenient and reliable to brake, the water receiving module realizes semi-self-service, the operation and safety are high, and the like.

Description

Technical Field

[0001] The invention relates to the technical field of airline dining cars, in particular to a handbrake type semi-self-service airline dining car. Background Art

[0002] The airline catering cart is one of the key equipment used to provide catering services on the aircraft. Its design and function are to meet the catering needs of passengers and improve the service quality of the airline while ensuring flight safety.

[0003] For decades, airlines have used aluminum-based cabin catering service carts, which are manufactured from aviation aluminum alloy profiles and plates, stainless steel precision castings and fasteners, and PVC-based closed foam insulation layers that meet airworthiness and flame combustion characteristics. In the current standard service process of domestic airlines, the way to place the dining carts (i.e. water carts) that distribute beverages is to put the beverages (such as: coffee pots, kettles, mineral water, Coke Sprite, etc.) vertically into two water boxes, and then put the two water boxes on the table of the dining cart. For service efficiency, the flight attendants will remove the bottle caps in advance. The water carts distribute in sequence from front to back or from back to front in the cabin aisle. The flight attendants need to ask passengers one by one about their needs, and then pour the drinks into paper cups and hand them to the passengers.

[0004] During flight, airplanes often encounter predictable or unpredictable air currents, which can cause mild to severe turbulence. Due to global warming and climate change, the possibility of airplanes encountering clear-air turbulence increases. If severe turbulence is encountered during meal delivery, it is easy to cause food and drinks to spill, burn, or get hurt. Even if the flight attendant fails to step on the foot brake in time, the hard edges and frames of the dining car body may cause the dining car to collide, bump, or injure people.

[0005] For example, the invention with publication number CN209003108U discloses a handbrake type passenger aircraft meal delivery cart, including a meal cart body, a fixed rod is installed at the bottom of the meal cart body, the other end of the fixed rod is rotatably connected to a movable rod, a brake pad matching the universal wheel is provided on one side of the bottom end of the movable rod, the other end of the movable rod is fixedly connected to a telescopic rod, one end of the telescopic rod is connected to a first spring, a brake line is connected to the side of the upper end of the movable rod away from the brake pad, a sleeve is sleeved on the outside of the brake line, and the end of the brake line away from the movable adjusting rod is connected to a handbrake handle, and the handbrake handle is rotatably connected to the meal cart handle.

[0006] Although the above scheme realizes the braking of the dining cart by a handbrake structure, thus avoiding the defect that the footbrake cannot be used for braking when the aircraft is bumpy, the above handbrake braking structure requires the staff to keep both hands on the brake handle to ensure the braking effect, which is inconvenient to use and it is inconvenient for the staff to hold the surrounding seats to stabilize themselves when stabilizing the dining cart, resulting in low safety.

[0007] Furthermore, especially for large passenger aircraft, when the occupancy rate is higher than 80% and the number of crew members is the minimum for this type of aircraft, service links such as meal delivery are prone to lack of staff, which will lead to low service efficiency, passenger dissatisfaction and other problems. In addition, the existing airline dining car compartment is shared by meals, drinks and recycling garbage bags, and the hygiene needs to be improved.

[0008] Based on the above deficiencies and needs in use, an airline catering car that can cope with turbulence and can be intelligently summoned and provide semi-self-service is proposed. Summary of the invention

[0009] The purpose of the present invention is to provide a handbrake type semi-self-service airline catering vehicle and method in order to overcome the defects of the above-mentioned prior art such as the inconvenient operation of the handbrake structure and the low safety.

[0010] The purpose of the present invention can be achieved by the following technical solutions:

[0011] A handbrake type semi-self-service airline catering vehicle, comprising a catering vehicle body, a water receiving module, a brake module and a driving wheel, wherein the driving wheel is arranged at the bottom of the catering vehicle body, the brake module is arranged on the catering vehicle body and connected to the driving wheel, the water receiving module is located at the top of the catering vehicle body, a water tank module is arranged in the catering vehicle body, and the water receiving module is connected to the water tank module;

[0012] The braking module includes a handle, a vertical rod, a sliding groove, a self-locking component and a brake lock. The driving wheel is provided with a brake groove along the rolling direction, and the brake lock is matched with the shape of the brake groove; the sliding groove is arranged in the dining car body, and the vertical rod can be slidably arranged in the sliding groove. The handle is connected to one end of the vertical rod for driving the vertical rod to move up and down, and the other end of the vertical rod is connected to the self-locking component, and the self-locking component is connected to the brake lock for controlling the coordination between the brake lock and the brake groove.

[0013] Preferably, the self-locking assembly comprises a push rod, a guide groove, a locking member and a spring;

[0014] The push rod is fixed to the end of the vertical rod away from the handle, and a serrated ring is provided at the end away from the vertical rod. A groove is provided on the inner wall of the guide groove, and the serrated ring and the groove are staggered. The groove includes long grooves and short grooves that are alternately distributed. A tooth column is provided on the locking member, and the tooth column is fully meshed with the long groove and not fully meshed with the serrated ring. The upper end surface of the tooth column and the lower end surface of the groove dividing section are provided with inclined surfaces parallel to each other.

[0015] A guide column is provided on the side wall of the push rod, and the guide column cooperates with the groove on the inner wall of the guide groove. The upper end of the locking piece is located at the lower end of the push rod, and the tooth column movably contacts the serrated ring. One end of the brake lock is connected to the locking piece, and the other end passes through the guide groove and movably cooperates with the brake groove. The spring is located between the brake lock and the guide groove and is used to reset the brake lock.

[0016] Preferably, the water receiving module comprises a water outlet, a push handle, a four-cylinder micro-diaphragm pump, a silicone sealing cover and a lithium battery, and a water bucket is provided in the water tank module;

[0017] The silicone sealing cover is threadedly connected to the opening of the bucket, the four-cylinder micro diaphragm pump is fixed to the silicone sealing cover and electrically connected to the lithium battery, the water inlet of the four-cylinder micro diaphragm pump is connected to the inside of the bucket through an inlet pipe, and the water outlet is connected to the outlet through an outlet pipe, a contact switch is provided between the lithium battery and the four-cylinder micro diaphragm pump, the contact switch is connected to a push handle, and the push handle is used to control the opening and closing of the contact switch.

[0018] Preferably, the water receiving module also includes a support plate and a fixed plate, the support plate is vertically fixed to the upper end of the dining cart body, one end of the fixed plate is connected to the support plate, and the other end is inclined away from the dining cart body, and the water outlet and the push handle are paired and arranged on the side of the fixed plate close to the dining cart body.

[0019] Preferably, the dining car body is further provided with a recycling module, the recycling module is located between the water tank module and the water receiving module, a side of the recycling module close to the water receiving module is provided with a trash can opening, and a flip cover is provided on the trash can opening.

[0020] Preferably, a water receiving trough is provided at the upper end of the recovery module, and the water receiving trough is detachably mounted on the dining car body and is located below the water receiving module.

[0021] Preferably, a storage module is provided at the upper end of the water receiving module, the storage module comprises a storage box cover, a follower assembly and a storage box body with an opening, the follower assembly comprises a bottom plate, a tightening spring and a plastic plate;

[0022] The storage box cover is folded and arranged at the opening of the storage box body. A through hole matching the cup is provided on the storage box cover. A circular ring is fixed outside the through hole. A bayonet is provided on the inner side of the circular ring. The bayonet is an elastic structure and abuts against the bottom of the cup. One end of the tightening spring is fixed to the bottom plate, and the other end is connected to the plastic plate. The plastic plate abuts against the opening end of the cup. The follower component is placed at the bottom of the storage box body.

[0023] Preferably, a hinge is provided between the storage box cover and the storage box body, and one side of the storage box cover is rotatably fixed to one side of the opening of the storage box body through the hinge; a lock is provided on the side of the storage box cover away from the hinge, and the other side of the storage box cover is detachably fixed to the storage box body through the lock.

[0024] Preferably, the dining car body is provided with an anti-bumping safety belt, including a retractor, a safety belt and a spring lock; the retractor is fixed on the dining car body, the safety belt is received in the retractor, and the spring lock is fixed to one end of the safety belt.

[0025] Preferably, the dining car body is also provided with a controller and an infrared anti-collision sensor, a posture measurement sensor and an automatic braking module connected to the controller;

[0026] The infrared anti-collision sensor is used to obtain environmental information around the dining car body, and the posture measurement sensor is used to obtain posture information of the dining car body; the controller is used to obtain environmental information and posture information around the dining car body, and control the automatic braking module to brake the driving wheels.

[0027] Compared with the prior art, the present invention has the following advantages:

[0028] (1) In this solution, the staff pushes the airline catering cart, and the catering cart body moves under the action of the driving wheel, and obtains the beverage stored in the water tank module through the water receiving module; when the driving wheel needs to be locked, the staff drives the vertical rod to move along the sliding groove through the handle, driving the self-locking component to lock the brake lock in the brake groove on the driving wheel, completing the driving wheel braking; then, the handle drives the vertical rod to move, the self-locking component is unlocked, the brake lock is disengaged from the brake groove, and the driving wheel can move.

[0029] By moving the handle and cooperating with the vertical rod to drive the self-locking component to move, the brake lock is matched and fixed with the brake groove on the driving wheel to lock the driving wheel, and the brake is manually operated by the handle. The structure is simple, the operation is convenient, and the braking response is quick. And by using the self-locking component in conjunction with the brake lock, the staff can move freely after the driving wheel is braked. Compared with the existing handbrake dining car, the driving wheel braking is more reliable and safer.

[0030] (2) In this solution, each corner of the dining car body is rounded. Compared with the protruding corners of the existing dining car, the dining car body with rounded corners is safer to move in the cabin and is less likely to cause harm to passengers in the cabin.

[0031] (3) This solution optimizes the structural layout of the airline catering cart, making the water collection function and garbage collection function of the airline catering cart clearly divided; better ensuring public health safety; effectively avoiding accidents such as food spillage and scalding caused by reasons such as the inability to fix items and operator errors; the water collection module is easy to use, making it convenient for flight attendants and passengers to use it semi-self-service. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the structure of the airline catering vehicle of the present invention;

[0033] Figure 2 It is a structural schematic diagram of the brake module of the present invention;

[0034] Figure 3 It is a structural schematic diagram of the self-locking component of the brake module of the present invention;

[0035] Figure 4 It is a schematic diagram of the exploded structure of the self-locking component of the brake module of the present invention;

[0036] Figure 5 It is a structural schematic diagram of the anti-bumping safety belt of the present invention;

[0037] Figure 6 A flow chart showing the cooperation between the safety belt and the spring lock buckle of the present invention;

[0038] Figure 7 It is a structural schematic diagram of the water pumping assembly provided in the water tank module of the present invention;

[0039] Figure 8 This is a structural schematic diagram of the water receiving module connected to the water tank module of the present invention;

[0040] Fig. 9 It is a structural schematic diagram of the storage module of the present invention;

[0041] Fig.10 This is a workflow diagram of the semi-self-service function of the dining car of the present invention;

[0042] Among them: 1. Storage module, 2. Water receiving module, 3. Recovery module, 4. Water tank module, 5. Driving wheel, 6. Braking module, 7. Anti-bumping safety belt, 8. Return key, 9. Infrared anti-collision sensor, 101. Storage box cover, 102. Ring, 103. Bayonet, 104. Hinge, 105. Lock, 106. Bottom plate, 107. Plastic plate, 108. Tightening spring; 201. Water outlet, 202. Push handle, 203. Four-cylinder micro diaphragm Pump, 204, silicone sealing cover, 205, water outlet pipe, 206, water inlet pipe, 207, lithium battery, 208, support plate, 209, fixing plate; 301, trash bin opening, 302, water receiving trough; 601, handle, 602, vertical rod, 603, sliding groove, 604, push rod, 605, guide groove, 606, locking piece, 607, brake lock, 608, spring; 701, retractor, 702, safety belt, 703, spring lock. DETAILED DESCRIPTION

[0043] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0044] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0045] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0046] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the inventive product is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0047] It should be noted that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0048] In addition, the terms "horizontal", "vertical" and the like do not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0049] Example 1

[0050] like Figure 1 and Figure 2 As shown, this embodiment provides a handbrake type semi-self-service airline catering vehicle, comprising a catering vehicle body, a water receiving module 2, a brake module 6 and a driving wheel 5, wherein the driving wheel 5 is arranged at the bottom of the catering vehicle body, the brake module 6 is arranged on the catering vehicle body and connected to the driving wheel 5, the water receiving module 2 is located at the top of the catering vehicle body, a water tank module 4 is arranged in the catering vehicle body, the water receiving module 2 is connected to the water tank module 4, and the edges and corners of the catering vehicle body are provided with rounded corners;

[0051] The braking module 6 includes a handle 601, a vertical rod 602, a sliding groove 603, a self-locking component and a brake lock 607. The driving wheel 5 is provided with a brake groove 501 along the rolling direction, and the brake lock 607 is matched with the shape of the brake groove 501; the sliding groove 603 is set in the dining car body, and the vertical rod 602 can be slidably set in the sliding groove 603. The handle 601 is connected to one end of the vertical rod 602 to drive the vertical rod 602 to move up and down, and the other end of the vertical rod 602 is connected to the self-locking component, and the self-locking component is connected to the brake lock 607 to control the coordination between the brake lock 607 and the brake groove 501.

[0052] Working principle: the staff pushes the airline catering cart, and the catering cart body moves under the action of the driving wheel 5, and obtains the beverage stored in the water tank module 4 through the water receiving module 2; when the driving wheel 5 needs to be locked, the staff drives the vertical rod 602 to move along the sliding groove 603 through the handle 601, and drives the self-locking component to lock the brake lock 607 in the brake groove 501 on the driving wheel 5, completing the braking of the driving wheel 5; then the handle 601 drives the vertical rod 602 to move, the self-locking component is unlocked, the brake lock 607 is disengaged from the brake groove 501, and the driving wheel 5 can move.

[0053] By moving the handle 601 and cooperating with the vertical rod 602 to drive the self-locking component to move, the brake lock 607 is matched and fixed with the brake groove 501 on the driving wheel 5 to lock the driving wheel 5. The handle is manually operated to brake, which has a simple structure, convenient operation and rapid braking response. And by using the self-locking component to cooperate with the fixation of the brake lock 607, after the driving wheel 5 is braked, the staff can move freely. Compared with the existing handbrake dining car, the braking of the driving wheel 5 is more reliable and safer. The corners on the dining car body are rounded. Compared with the protruding corners of the existing dining car, the dining car body with rounded corners is safer to move in the cabin and is not easy to cause harm to the passengers in the cabin.

[0054] Preferred implementation mode: Figures 2 to 4 As shown, the self-locking assembly includes a push rod 604, a guide groove 605, a locking member 606 and a spring 608;

[0055] The push rod 604 is fixed to the end of the vertical rod 602 away from the handle 601, and a serrated ring is provided at the end away from the vertical rod 602. A groove is provided on the inner wall of the guide groove 605. The serrated ring and the groove are staggered. The groove includes long grooves and short grooves that are alternately distributed. A tooth column is provided on the locking member 606. The tooth column is fully meshed with the long groove and is not fully meshed with the serrated ring. The upper end surface of the tooth column and the lower end surface of the groove partition section are provided with inclined surfaces that are parallel to each other.

[0056] A guide column is provided on the side wall of the push rod 604, and the guide column cooperates with the groove on the inner wall of the guide groove 605. The upper end of the locking piece 606 is located at the lower end of the push rod 604, and the tooth column movably contacts the serrated ring. One end of the brake lock 607 is connected to the locking piece 606, and the other end passes through the guide groove 605 and movably cooperates with the brake groove 501. The spring 608 is located between the brake lock 607 and the guide groove 605, and is used to reset the brake lock 607.

[0057] Specifically, in this embodiment, the brake module 6 is used to brake the left and right driving wheels 5 at the front of the dining car body, and the driving wheels 5 are each provided with a plurality of radial brake grooves 501. The structures of the left and right brake modules 6 are symmetrical and identical and move synchronously, and the specific working process includes:

[0058] When the handle 601 of the dining cart is pressed down, the vertical rod 602 in the sliding groove 603 is driven to move downward, so that the push rod 604 fixed at the bottom of the vertical rod 602 is pressed down at the same time, applying thrust to the internal components of the guide groove 605, and the spring 608 is compressed. After the handle 601 is released, the spring 608 will push upward. The inner wall of the guide groove 605 is provided with alternately distributed long grooves and short grooves, and the tooth columns on the locking member 606 match the grooves. There are 4 teeth, which are evenly distributed around the circle and correspond to the positions of the same type of grooves. The sawtooth ring at the lower end of the push rod 604 is staggered with the long groove, and the tooth column is fully engaged with the long groove, while the tooth column is not fully engaged with the sawtooth ring.

[0059] When the push rod 604 is pressed down, the sawtooth ring drives the tooth column to rotate downward, and the tooth column slides along the inclined surface of the tooth of the guide groove 605 under the action of the rebound force of the spring 608, and slides into the short groove adjacent to the long groove. At this time, the brake lock 607 extends downward and is fixed in position by the short groove, and the brake lock 607 is engaged with the brake groove 501. As a result, the driving wheels 5 on both sides are braked at the same time, and the dining car body cannot move. Press the handle 601 again, the push rod 604 pushes the locking piece 606 downward to disengage from the guide groove 605, and at the same time, under the action of the rebound force of the spring 608, the locking piece 606 will slide into the adjacent long groove along the inclined surface of the tooth of the guide groove 605, and the locking piece 606 is fully engaged with the guide groove 605. With the cooperation of the spring 608, the brake lock 607 is synchronously retracted from the brake groove 501, and the driving wheels 5 on both sides are released and can move normally; that is, the driving wheel 5 can be braked and unlocked by pressing down the handle 601, the structure is simple, the operation is convenient, and the braking is reliable.

[0060] As a preferred embodiment, Figure 7 and Figure 8 As shown, the water receiving module 2 includes a water outlet 201, a push handle 202, a four-cylinder micro-diaphragm pump 203, a silicone sealing cover 204 and a lithium battery 207, and a water bucket is provided in the water tank module 4;

[0061] The silicone sealing cover 204 is threadedly connected to the opening of the bucket, the four-cylinder micro diaphragm pump 203 is fixed on the silicone sealing cover 204 and electrically connected to the lithium battery 207, the water inlet of the four-cylinder micro diaphragm pump 203 is connected to the inside of the bucket through the water inlet pipe 206, and the water outlet is connected to the water outlet 201 through the water outlet pipe 205, and a contact switch is provided between the lithium battery 207 and the four-cylinder micro diaphragm pump 203, and the contact switch is connected to the push handle 202, and the push handle 202 is used to control the opening and closing of the contact switch.

[0062] Among them, the water receiving module 2 also includes a support plate 208 and a fixed plate 209. The support plate 208 is vertically fixed on the upper end of the dining car body. One end of the fixed plate 209 is connected to the support plate 208, and the other end is inclined in the direction away from the dining car body. The water outlet 201 and the push handle 202 are paired and arranged on the side of the fixed plate 209 close to the dining car body.

[0063] Specifically, for an airline dining car with a length of 40 cm, a width of 30 cm, and a height of 110 cm, a 5-liter mineral water bucket and 7 1.5-liter beverage buckets, such as coffee, tea, dairy products, Sprite, cola, juice, and hot water, can be placed in the water tank module 4 in the dining car body. 8 water outlet switches are set corresponding to the water receiving module 2, and each water outlet switch consists of a water outlet 201 and a push handle 202. 8 four-cylinder micro-diaphragm pumps 203 are suspended in the water tank module 4, which are respectively fixed on 8 retractable silicone sealing covers 204. Each water pump is independently connected to a water inlet pipe 206 and a water outlet pipe 205. The water inlet pipe 206 hangs under the cover. When in use, the water inlet pipe is placed in a beverage bucket with the bottle cap screwed off, and then the silicone sealing cover is tightened on the beverage bottle mouth. A 20,000 mAh lithium battery 207 provides a power source for the water pump, and the water outlet pipes 205 are respectively connected to the 8 water outlets 201. When the push handle 202 is pushed, the power is turned on, the water pump starts working, and the beverage flows out from the water outlet 201. When the push handle 202 is released, the power is cut off and the water outlet stops. The water outlet switches are divided into two rows, front and back, with 4 in each row. The distance between two adjacent water outlets 201 is set at about 6 cm to ensure that the cup will not contact the water outlets on both sides when receiving water.

[0064] The structural layout of the airline catering cart has been optimized to make the water collection function and garbage collection function of the airline catering cart clearly divided; better ensure public health safety; effectively avoid accidents such as food spillage and scalding caused by reasons such as the inability to fix items and operator errors; the water collection module is simple to use, allowing flight attendants and passengers to use it semi-self-servicely.

[0065] Specifically, Figure 1 As shown, a recycling module 3 is also provided on the dining car body, and the recycling module 3 is located between the water tank module 4 and the water receiving module 2. A garbage bin opening 301 is provided on one side of the recycling module 3 close to the water receiving module 2, and a flip cover is provided on the garbage bin opening 301.

[0066] Furthermore, a water receiving trough 302 is provided at the upper end of the recovery module 3 , and the water receiving trough 302 can be detachably mounted on the dining car body and is located below the water receiving module 2 .

[0067] For the airline catering car of this embodiment, which is 40 cm long, 30 cm wide and 110 cm high, a 30 cm*40 cm empty box is provided in the middle layer of the catering car for placing garbage bags and collecting garbage. The front part of the operating platform is a garbage box slot 301 with a manual flip cover. The rear part of the platform is a lower water receiving trough 302 with a depth of 5 cm, which can be disassembled for cleaning.

[0068] Furthermore, if Fig. 9As shown, a storage module 1 is provided at the upper end of the water receiving module 2, and the storage module 1 includes a storage box cover 101, a follower component and a storage box body with an opening, and the follower component includes a bottom plate 106, a tightening spring 108 and a plastic plate 107;

[0069] The storage box cover 101 is folded and arranged at the opening of the storage box body. A through hole matching the cup is provided on the storage box cover 101. A circular ring 102 is fixed outside the through hole. A bayonet 103 is provided on the inner side of the circular ring 102. The bayonet 103 is an elastic structure, and the bayonet 103 rests on the bottom of the cup. One end of the tightening spring 108 is fixed on the bottom plate 106, and the other end is connected to the plastic plate 107. The plastic plate 107 rests on the opening end of the cup and is placed at the bottom of the storage box body following the assembly.

[0070] Among them, a hinge 104 is provided between the storage box cover 101 and the storage box body, and one side of the storage box cover 101 can be rotatably fixed to one side of the opening of the storage box body through the hinge 104; a lock 105 is provided on the side of the storage box cover 101 away from the hinge 104, and the other side of the storage box cover 101 can be detachably fixed to the storage box body through the lock 105.

[0071] Specifically, a storage box 1 is provided on the top of the dining car, and three circular rings 102 are embedded on the cover plate 101 provided on the opening of the storage box body, and three elastic bayonet 103 are provided on the inner side of each circular ring 102. The cover plate 101 is connected to the storage box 1 through a hinge 104 and can be folded upward. When the cover plate 101 is closed, the lock 105 can be rotated to fix it. When used as a disposable cup extraction bucket, the accessories are inserted into the bottom of the storage box. The accessories are composed of a bottom plate 106 and three tightening springs 108 with a plastic plate 107 at one end. The spring 108 has a strong resilience. When it is empty, the plastic sheet 107 is close to the cover plate 101. Then push the plastic sheet 107 with the mouth of the cup facing inward, and the tightening spring 108 is compressed, and finally the cover plate 101 is closed. The bottom of the cup is exposed through the ring 102 on the cover 101, and the buckle 103 in the ring 102 fixes the cup in the storage box 1. At the same time, as the number of cups drawn out decreases, the tension spring 108 at the bottom will push the remaining cups outward for further taking out. When there is no need to draw out cups, the accessories can be taken out, and the storage box 1 can be used to store plates, cutlery, etc.

[0072] Furthermore, if Figure 5 and Figure 6 As shown, the dining car body is provided with an anti-bumping safety belt 7, which includes a retractor 701, a safety belt 702 and a spring lock 703; the retractor 701 is fixed on the dining car body, the safety belt 702 is stored in the retractor 701, and the spring lock 703 is fixed to one end of the safety belt 702.

[0073] Specifically, there is a small emergency locking retractor 701 hidden in the car on each side of the dining car. When the vehicle is bumpy, if the dining car is in the aisle of the cabin, the safety belt 702 in the retractor 701 can be pulled out and the spring lock 703 can be buckled on the iron rod under the seat; if the dining car is in the kitchen other than the dining car, similarly, it can be fixed with the safety belt 702 to prevent the dining car from tipping over during bumps.

[0074] like Fig.10 As shown, the dining car body is also provided with a controller and an infrared anti-collision sensor 9 connected to the controller, a posture measurement sensor and an automatic braking module;

[0075] The infrared anti-collision sensor 9 is used to obtain the environmental information around the dining car body, and the posture measurement sensor is used to obtain the posture information of the dining car body; the controller is used to obtain the environmental information and posture information around the dining car body, and control the automatic braking module to brake the driving wheel 5.

[0076] Optionally, a dining car call button can be set on the passenger seat, and a return button 8 can be set on the dining car handle 601; in conjunction with the driving wheel 5, the infrared anti-collision sensor 9, the posture measurement sensor and the controller, the semi-self-service function of the dining car can be realized. The controller has preset the cabin layout of the aircraft model in advance. When the passenger presses the dining car call button, the controller obtains the location information of the call point in the cabin layout map and instructs the driving wheel to move according to the planned route.

[0077] When the infrared anti-collision sensor 9 detects an obstacle in the direction of the dining car, the dining car automatically stops moving, and continues to run according to the route planning after the obstacle leaves.

[0078] When the dining car service is not needed, just press the return key 8 on the dining car handle. After receiving the signal, the controller will command the dining car to respond to the next call or return to the kitchen dining car position to wait.

[0079] A high-precision attitude measurement sensor is installed at the bottom of the dining car. When the aircraft is detected to be obviously bumpy, the sensor inputs the bump signal into the controller. When it is recognized that the dining car is not braked, the controller commands the brake lock of the driving wheel to extend, and the brake lock engages with the wheel, so as to achieve the purpose of automatic braking of the dining car when bumpy.

[0080] When the cabin is understaffed, the airline catering car can fill the labor gap in time, automatically respond to passengers' calls, and reduce passengers' waiting time; after the service is completed, the next task can be automatically executed through the return button to improve service efficiency; anti-collision detection improves the safety of the catering car when it is unmanned.

[0081] The preferred specific embodiments of the present invention are described in detail above. It should be understood that a person skilled in the art can make many modifications and changes based on the concept of the present invention without creative work. Therefore, any technical solution that can be obtained by a person skilled in the art through logical analysis, reasoning or limited experiments based on the concept of the present invention on the basis of the prior art should be within the scope of protection determined by the claims.

Claims

1. A handbrake type semi-self-service airline catering car, characterized in that: The dining vehicle comprises a dining vehicle body, a water receiving module (2), a brake module (6) and a driving wheel (5), wherein the driving wheel (5) is arranged at the bottom of the dining vehicle body, the brake module (6) is arranged on the dining vehicle body and connected to the driving wheel (5), the water receiving module (2) is located at the top of the dining vehicle body, a water tank module (4) is arranged in the dining vehicle body, and the water receiving module (2) is connected to the water tank module (4); The brake module (6) comprises a handle (601), a vertical rod (602), a sliding groove (603), a self-locking component and a brake lock (607); the driving wheel (5) is provided with a brake groove (501) along the rolling direction, and the brake lock (607) matches the shape of the brake groove (501); the sliding groove (603) is arranged in the dining car body, and the vertical rod (602) can be slidably arranged in the sliding groove (603); the handle (601) is connected to one end of the vertical rod (602) for driving the vertical rod (602) to move up and down; the other end of the vertical rod (602) is connected to the self-locking component, and the self-locking component is connected to the brake lock (607) for controlling the matching between the brake lock (607) and the brake groove (501).

2. A handbrake type semi-self-service airline catering vehicle according to claim 1, characterized in that: The self-locking assembly comprises a push rod (604), a guide groove (605), a locking member (606) and a spring (608); The push rod (604) is fixed to the end of the vertical rod (602) away from the handle (601), and a serrated ring is provided at the end away from the vertical rod (602). The inner wall of the guide groove (605) is provided with a groove, and the serrated ring and the groove are staggered and distributed. The groove includes long grooves and short grooves that are alternately distributed. The locking member (606) is provided with a tooth column, and the tooth column is fully meshed with the long groove and is not fully meshed with the serrated ring. The upper end surface of the tooth column and the lower end surface of the groove partition section are provided with inclined surfaces parallel to each other. A guide column is provided on the side wall of the push rod (604), and the guide column cooperates with the groove on the inner wall of the guide groove (605). The upper end of the locking member (606) is located at the lower end of the push rod (604), and the tooth column movably contacts the serrated ring. One end of the brake lock (607) is connected to the locking member (606), and the other end passes through the guide groove (605) and movably cooperates with the brake groove (501). The spring (608) is located between the brake lock (607) and the guide groove (605) and is used for resetting the brake lock (607).

3. A handbrake type semi-self-service airline catering vehicle according to claim 1, characterized in that: The water receiving module (2) comprises a water outlet (201), a push handle (202), a four-cylinder micro-diaphragm pump (203), a silicone sealing cover (204) and a lithium battery (207), and a water bucket is provided inside the water tank module (4); The silicone sealing cover (204) is threadedly connected to the opening of the bucket, the four-cylinder micro-diaphragm pump (203) is fixed to the silicone sealing cover (204) and electrically connected to the lithium battery (207), the water inlet of the four-cylinder micro-diaphragm pump (203) is connected to the inside of the bucket through a water inlet pipe (206), and the water outlet is connected to the water outlet (201) through a water outlet pipe (205), and a contact switch is provided between the lithium battery (207) and the four-cylinder micro-diaphragm pump (203), and the contact switch is connected to a push handle (202), and the push handle (202) is used to control the opening and closing of the contact switch.

4. A handbrake type semi-self-service airline catering vehicle according to claim 3, characterized in that: The water receiving module (2) further comprises a support plate (208) and a fixed plate (209), wherein the support plate (208) is vertically fixed to the upper end of the dining vehicle body, one end of the fixed plate (209) is connected to the support plate (208), and the other end is inclined in a direction away from the dining vehicle body, and the water outlet (201) and the push handle (202) are arranged in a pair on a side of the fixed plate (209) close to the dining vehicle body.

5. The handbrake type semi-self-service airline catering vehicle according to claim 1, characterized in that: The dining car body is also provided with a recycling module (3), the recycling module (3) being located between the water tank module (4) and the water receiving module (2), the recycling module (3) being provided with a trash can inlet (301) on one side close to the water receiving module (2), and the trash can inlet (301) being provided with a flip cover.

6. A handbrake type semi-self-service airline catering vehicle according to claim 5, characterized in that: A water receiving trough (302) is provided at the upper end of the recovery module (3); the water receiving trough (302) is detachably mounted on the dining vehicle body and is located below the water receiving module (2).

7. A handbrake type semi-self-service airline catering vehicle according to claim 1, characterized in that: A storage module (1) is provided at the upper end of the water receiving module (2), the storage module (1) comprising a storage box cover plate (101), a follower component and a storage box body provided with an opening, the follower component comprising a bottom plate (106), a tensioning spring (108) and a plastic plate (107); The storage box cover (101) is folded and arranged at the opening of the storage box body; a through hole matching the cup is provided on the storage box cover (101); a circular ring (102) is fixed outside the through hole; a bayonet (103) is provided inside the circular ring (102); the bayonet (103) is an elastic structure; the bayonet (103) abuts against the bottom of the cup; one end of the tensioning spring (108) is fixed on the bottom plate (106); the other end is connected to a plastic plate (107); the plastic plate (107) abuts against the opening end of the cup; and the follower assembly is placed at the bottom of the storage box body.

8. A handbrake type semi-self-service airline catering vehicle according to claim 7, characterized in that: A hinge (104) is provided between the storage box cover (101) and the storage box body, and one side of the storage box cover (101) is rotatably fixed to one side of the opening of the storage box body through the hinge (104); a lock (105) is provided on the side of the storage box cover (101) away from the hinge (104), and the other side of the storage box cover (101) is detachably fixed to the storage box body through the lock (105).

9. The handbrake type semi-self-service airline catering vehicle according to claim 1, characterized in that: The dining car body is provided with an anti-bumping safety belt (7), and the anti-bumping safety belt (7) comprises a retractor (701), a safety belt (702) and a spring lock (703); the retractor (701) is fixed on the dining car body, the safety belt (702) is received in the retractor (701), and the spring lock (703) is fixed to one end of the safety belt (702).

10. The handbrake type semi-self-service airline catering vehicle according to claim 1, characterized in that: The dining car body has rounded corners at its edges and corners. The dining car body is also provided with a controller and an infrared anti-collision sensor (9) connected to the controller, a posture measurement sensor and an automatic braking module; The infrared anti-collision sensor (9) is used to obtain environmental information around the dining vehicle body, and the posture measurement sensor is used to obtain posture information of the dining vehicle body; the controller is used to obtain environmental information and posture information around the dining vehicle body, and control the automatic braking module to brake the drive wheel (5).

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