CN218949027U

CN218949027U - Carriage lifting structure of airplane food vehicle

Info

Publication number: CN218949027U
Application number: CN202223546014.2U
Authority: CN
Inventors: 肖爽
Original assignee: Chongqing Dahang Industry Co ltd
Current assignee: Chongqing Dahang Industry Co ltd
Priority date: 2022-12-29
Filing date: 2022-12-29
Publication date: 2023-05-02
Anticipated expiration: 2032-12-29

Abstract

The utility model discloses a carriage lifting structure of an aircraft food vehicle, which comprises an auxiliary frame arranged above a chassis frame, wherein a lifting arm assembly which can be telescopic in the vertical direction is arranged between the chassis frame and the auxiliary frame, the lifting arm assembly is foldable in the vertical direction and is internally provided with an oil cylinder, and the lifting arm assembly is provided with two lifting arm assemblies which are respectively arranged at two sides of the width direction of the vehicle body; the two sides of the width of the auxiliary frame and the chassis frame are extended with lugs, and the lifting arm component is hinged on the upper frame and the lower frame through the lugs. According to the utility model, the support lugs extend out of the two sides of the widths of the auxiliary frame and the chassis frame, and the lifting arm assembly is hinged with the upper frame and the lower frame through the support lugs, so that the lifting arm assembly does not need to be inserted into the chassis frame after being folded, namely, the space in the chassis frame is not occupied, and the lifting arm assembly is only positioned beside the support lugs after being folded, so that the arrangement of the chassis is not influenced; two lifting arm assemblies are arranged, and the support stability of the auxiliary frame is better.

Description

Carriage lifting structure of airplane food vehicle

Technical Field

The utility model relates to a food vehicle, in particular to a carriage lifting structure of an aircraft food vehicle.

Background

The aircraft food car is a special vehicle for supplementing food for personnel on the aircraft, the aircraft food car is provided with a lifting platform, a carriage of the aircraft food car is arranged on the lifting platform to lift, all food cars in the industry adopt lifting fork shearing mechanisms, lifting cylinders are arranged in arm forks and are connected with inner wall forks and outer arm forks, and the movement of the lifting platform is realized by driving angle change.

The lifting oil cylinder is arranged in the arm fork in a direct mode, but in the original initial position state of the lifting oil cylinder, the cylinder sleeve part of the oil cylinder can be inserted into the chassis frame and extend downwards to a large depth, so that enough action stroke is ensured. The arrangement space in the commercial chassis frame is relatively narrow, the arrangement of the lifting oil cylinders must meet the requirements of the use space of the frame cross beam, the driving motor and the transmission shaft, and the selection calculation and the operation state simulation can adversely affect the installation state and the operation performance of the lifting oil cylinders.

Disclosure of Invention

The utility model aims at: aiming at the problem that the lifting device occupies the space of a frame in the prior art to influence the arrangement of a chassis of a vehicle body, the lifting structure of the carriage of the food vehicle without occupying the space of the chassis is provided.

In order to achieve the above object, the present utility model provides the following technical solutions:

the lifting structure of the carriage of the aircraft food vehicle comprises an auxiliary frame arranged above a chassis frame, wherein a lifting arm assembly which is telescopic in the vertical direction is arranged between the chassis frame and the auxiliary frame, the lifting arm assembly is foldable in the vertical direction and is internally provided with an oil cylinder, and the lifting arm assembly is provided with two lifting arm assemblies which are respectively arranged at two sides of the width direction of the vehicle body; the two sides of the width of the auxiliary frame and the chassis frame are extended with lugs, and the lifting arm component is hinged on the upper frame and the lower frame through the lugs.

According to the utility model, the support lugs extend out of the two sides of the width of the auxiliary frame and the chassis frame, and the lifting arm assembly is hinged with the upper frame and the lower frame through the support lugs, so that the lifting arm assembly does not need to be inserted into the chassis frame after being folded, namely, the space in the chassis frame is not occupied, and the lifting arm assembly is only positioned beside the support lugs after being folded, so that the arrangement of the chassis is not influenced; the two lifting arm assemblies are arranged, so that the stability of the auxiliary frame is better; therefore, through the scheme of the application, the influence on the chassis is effectively reduced, and the lifting and supporting effects on the auxiliary frame are achieved.

Further, the lifting arm assembly is provided with an upper arm and a lower arm which are connected in a hinged manner, the other end of the upper arm is hinged to the auxiliary frame, and the other end of the lower arm is hinged to the chassis frame. And the upper arm and the lower arm which are connected are hinged, so that the telescopic lifting effect of the lifting arm assembly is realized.

Further, one end of the oil cylinder is hinged on the chassis frame, and the other end of the oil cylinder is hinged on the upper arm. The upper arm is driven to stretch out and draw back through the stretching of the oil cylinder, so that the lifting and folding effects of the auxiliary frame are achieved.

Further, the local width of the hinged part of the upper arm and the oil cylinder is wider than the whole part. The local widening is beneficial to the local strength increase and ensures the stability of the hinge position.

Further, an X-shaped arm fork assembly is arranged between the chassis frame and the auxiliary frame, and the arm fork assembly is arranged along the length direction of the vehicle body. The X-shaped arm fork assembly is convenient to retract.

Further, two ends of the arm fork assembly, which are close to the vehicle head, are connected with the upper frame and the lower frame through hinges, and two ends of the arm fork assembly, which are close to the vehicle tail, are provided with rollers and are in rolling connection with the upper frame and the lower frame. The front side of the arm fork assembly is hinged and fixed, and the rear side of the arm fork assembly is in sliding connection, so that the arm fork assembly can conveniently stretch out and draw back, and the auxiliary frame can be conveniently lifted or dropped; in addition, the arm fork assembly is used for supporting the auxiliary frame, so that the stability of the auxiliary frame after lifting is better.

Further, the chassis frame and the auxiliary frame are provided with sliding grooves along the length direction of the vehicle body, and the rollers move along the sliding grooves. The chute is convenient for the movement of the roller, and plays a role in guiding.

Further, the arm fork assembly is arranged in the middle of the vehicle body, the lifting arm assembly is arranged in the middle of the vehicle body, and the two lifting arm assemblies are respectively arranged at two sides of the arm fork assembly. The two lifting arm assemblies are respectively arranged at two sides of the arm fork assembly, and the two lifting arm assemblies and the arm fork assembly act together, so that the stability of the auxiliary frame after lifting is ensured.

Further, the lifting arm assemblies are symmetrically arranged at two sides of the width direction of the vehicle body. The lifting arm components are symmetrically arranged, so that the stability is good.

In summary, due to the adoption of the technical scheme, the beneficial effects of the utility model are as follows:

the supporting lugs extend out of the two sides of the width of the auxiliary frame and the chassis frame, and the lifting arm assembly is hinged with the upper frame and the lower frame through the supporting lugs, so that the lifting arm assembly does not need to be inserted into the chassis frame after being folded, namely, the space in the chassis frame is not occupied, and the lifting arm assembly is only positioned beside the supporting lugs after being folded, so that the arrangement of the chassis is not influenced; the two lifting arm assemblies are arranged, so that the stability of the auxiliary frame is better; therefore, through the scheme of the application, the influence on the chassis is effectively reduced, and the lifting and supporting effects on the auxiliary frame are achieved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:

fig. 1 shows a schematic view of the lift structure of the cabin of the food service aircraft of the present utility model.

Fig. 2 shows a schematic view of the subframe of fig. 1 being supported.

Fig. 3 shows a partial structural plan view of fig. 1.

Fig. 4 shows a schematic view of the lift arm assembly of fig. 1.

Wherein the above figures include the following reference numerals:

10 chassis frame;

20 auxiliary frames; a 21 support lug;

30 arm fork assembly;

40 lifting arm assembly; 41 oil cylinders; 42 upper arm; 43 lower arm.

Detailed Description

It is noted that all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs unless otherwise indicated.

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

As shown in fig. 1 to 3, an aircraft food car carriage lifting structure comprises an auxiliary frame arranged above a chassis frame 10, wherein a lifting arm assembly 40 which is telescopic in the vertical direction is arranged between the chassis frame 10 and the auxiliary frame, the lifting arm assembly 40 is foldable in the vertical direction and is internally provided with an oil cylinder 41, and the lifting arm assembly 40 is provided with two lifting arm assemblies which are respectively arranged on two sides in the width direction of a car body; lugs 2021 extend from both sides of the width of the subframe and chassis frame 10, and the lifting arm assembly 40 is hinged to the upper and lower frames through the lugs 2021.

According to the utility model adopting the technical scheme, the support lugs 2021 extend out of the two sides of the width of the auxiliary frame and the chassis frame 10, and the lifting arm assembly 40 is hinged with the upper frame and the lower frame through the support lugs 2021, so that the lifting arm assembly 40 does not need to be inserted into the chassis frame 10 after being folded, namely, the space in the chassis frame 10 is not occupied, and the lifting arm assembly 40 is only positioned beside the support lugs 2021 after being folded, so that the arrangement of the chassis is not influenced; two lifting arm assemblies 40 are arranged, so that the support stability of the auxiliary frame is better; therefore, through the scheme of the application, the influence on the chassis is effectively reduced, and the lifting and supporting effects on the auxiliary frame are achieved.

Further, as shown in fig. 4, the lifting arm assembly 40 is provided with an upper arm 42 and a lower arm 43 which are hingedly connected, the other end of the upper arm 42 being hinged to the subframe, and the other end of the lower arm 43 being hinged to the chassis frame 10. The upper arm 42 and the lower arm 43 are hinged to realize the telescopic lifting effect of the lifting arm assembly 40.

Further, an oil cylinder 41 is hinged to the chassis frame 10 at one end and to the upper arm 42 at the other end. The upper arm 42 is driven to stretch and retract by stretching and retracting the oil cylinder 41, so that the lifting and folding effects on the auxiliary frame are realized.

Further, the partial width of the hinge of the upper arm 42 with the cylinder 41 is wider than the whole. The local widening is beneficial to the local strength increase and ensures the stability of the hinge position.

Further, an X-shaped arm fork assembly 30 is further provided between the chassis frame 10 and the subframe, and the arm fork assembly 30 is provided along the longitudinal direction of the vehicle body. The X-shaped arm fork assembly 30 is convenient to collapse.

Further, two ends of the arm fork assembly 30, which are close to the vehicle head, are connected with the upper frame and the lower frame through hinges, and two ends of the arm fork assembly 30, which are close to the vehicle tail, are provided with rollers and are in rolling connection with the upper frame and the lower frame. The front side of the arm fork assembly 30 is hinged and fixed, and the rear side is in sliding connection, so that the arm fork assembly 30 can be conveniently stretched and contracted, and the auxiliary frame can be conveniently lifted or dropped; in addition, the arm fork assembly 30 adds support to the subframe, so that stability of the subframe after lifting is better.

Further, the chassis frame 10 and the subframe are provided with sliding grooves along the length direction of the vehicle body, and the rollers move along the sliding grooves. The chute is convenient for the movement of the roller, and plays a role in guiding.

Further, the arm fork assembly 30 is disposed in the middle of the vehicle body, the lifting arm assembly 40 is disposed in the middle of the vehicle body, and the two lifting arm assemblies 40 are disposed on both sides of the arm fork assembly 30. The two lifting arm assemblies 40 are respectively arranged at two sides of the arm fork assembly 30, and the two lifting arm assemblies and the arm fork assembly act together, so that the stability of the auxiliary frame after lifting is ensured.

Further, the lift arm assemblies 40 are symmetrically disposed on both sides in the vehicle width direction. The lifting arm assemblies 40 are symmetrically arranged, and stability is good.

The scope of the utility model is not to be limited by the embodiments described above, but by the appended claims and their equivalents.

The foregoing description is only of the preferred embodiments of the present application and is not intended to limit the same, but rather, various modifications and variations may be made by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. The lifting structure of the carriage of the food vehicle of the aircraft is characterized by comprising an auxiliary frame (20) arranged above a chassis frame (10), wherein a lifting arm assembly (40) which is telescopic in the vertical direction is arranged between the chassis frame (10) and the auxiliary frame (20), the lifting arm assembly (40) is foldable in the vertical direction and is internally provided with an oil cylinder (41), and the lifting arm assembly (40) is provided with two lifting arm assemblies which are respectively arranged at two sides of the width direction of the vehicle body; the auxiliary frame (20) and the chassis frame (10) are provided with lugs (21) extending from two sides of the width, and the lifting arm assembly (40) is hinged to the upper frame and the lower frame through the lugs (21).

2. The aircraft food cart compartment lifting structure of claim 1, wherein the lifting arm assembly (40) is provided with an upper arm (42) and a lower arm (43) which are hingedly connected, the other end of the upper arm (42) is hinged on the subframe (20), and the other end of the lower arm (43) is hinged on the chassis frame (10).

3. The aircraft food cart compartment lifting structure of claim 2, wherein said ram (41) is hinged at one end to said chassis frame (10) and at the other end to said upper arm (42).

4. An aircraft food cart compartment lifting structure according to claim 3, characterized in that the upper arm (42) is wider locally at the hinge with the ram (41) than in its entirety.

5. The aircraft food cart compartment lifting structure of claim 1, wherein an X-shaped arm fork assembly (30) is further provided between the chassis frame (10) and the subframe (20), and the arm fork assembly (30) is disposed along a length direction of the cart body.

6. The lifting structure of an aircraft food car compartment according to claim 5, wherein two ends of the arm fork assembly (30) close to the car head are connected with an upper frame and a lower frame through hinging, and two ends of the arm fork assembly (30) close to the car tail are provided with rollers and are in rolling connection with the upper frame and the lower frame.

7. The aircraft food cart compartment lifting structure of claim 6, wherein said chassis frame (10) and said subframe (20) are each provided with a chute along a length of the cart body, said rollers moving along said chute.

8. The aircraft food cart compartment lifting structure of claim 5, wherein the arm fork assembly (30) is disposed in a middle portion of a cart body, the lifting arm assembly (40) is disposed in the middle portion of the cart body, and two lifting arm assemblies (40) are separately disposed on two sides of the arm fork assembly (30).

9. The aircraft food cart compartment lifting structure of claim 8, wherein said lifting arm assemblies (40) are symmetrically disposed on both sides in the width direction of said cart body.