Turnover type handle structure for airline handcart

Abstract

The utility model relates to a turnover type handle structure for an air trolley. The turnover type handle structure comprises side frames distributed on the left side and the right side in parallel, a rear frame installed on the rear side between the two side frames, a fixed handle installed on the front side between the two side frames and a top plate installed on the inner sides of the two side frames and the rear frame. The turnover handle assembly comprises a turnover handle parallel to the fixed handle and turnover supports installed on the left side and the right side of the turnover handle, handle switching blocks are installed on side frames on the left side and the right side of the fixed handle, and the turnover supports and the handle switching blocks are installed together through rotating shafts. By means of the overturning handle assembly, an operator can flexibly adjust and use the dining car according to different use scenes and requirements, and maneuverability and space adaptability of the dining car are improved.

Description

Technical Field

[0001] This utility model relates to the technical field of aviation catering carts, and in particular to a flip-up handle structure for aviation handcarts. Background Technology

[0002] Airline catering carts are devices designed to facilitate the transport of food by flight attendants. Their invention makes them convenient for people to use, as they are not only simple in structure but also easy to operate.

[0003] A search revealed Chinese patent publication number CN221059943U, which discloses a non-removable flip-top dry ice container airline catering cart, comprising: a catering cart cabinet with a storage cavity inside, a catering cart door on the front of the catering cart cabinet, casters at the four corners of the bottom of the catering cart cabinet, and a handle at the top of the front of the catering cart cabinet; and a fixed dry ice compartment, which is fixedly installed in the top opening of the catering cart cabinet, and the opening of the fixed dry ice compartment has a fixed half-cover and a flip-top cover, the flip-top cover being rotatably connected to the fixed half-cover.

[0004] Existing airline catering carts have handles installed on the top, but these handles are non-rotatable, making it difficult for operators to flexibly adjust them according to different usage scenarios and needs. This results in poor mobility and space adaptability of the catering cart itself.

[0005] In view of the above-mentioned shortcomings, the designer actively researched and innovated in order to create a flip-type handle structure for aircraft trolleys, making it more valuable for industrial use. Utility Model Content

[0006] To solve the above-mentioned technical problems, the purpose of this utility model is to provide a flip-type handle structure for an aircraft handcart.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A flip-type handle structure for an aircraft trolley includes side frames arranged side by side, a rear frame installed between the two side frames, a fixed handle installed between the two side frames, and a top plate installed inside the two side frames and the rear frame.

[0009] It also includes a flip handle assembly, which includes a flip handle parallel to the fixed handle and flip brackets installed on the left and right sides of the flip handle. Handle adapter blocks are installed on the side frames on the left and right sides of the fixed handle, and the flip brackets are installed together with the handle adapter blocks through a rotating shaft.

[0010] Inside the cavity of the flip handle, there is a handle push rod that is parallel to it. A button installed in the middle of the handle push rod passes through the button through hole on the flip handle and then protrudes out of the outside of the flip handle. Inside the cavity of the flip bracket, there is a pin that is parallel to it. The rear side of the pin is installed together with the handle push rod. A locking pin is installed in the handle adapter block in front of the pin. A first pin hole is opened in the locking pin so that the aforementioned pin can be inserted.

[0011] As a further improvement of this utility model, corner connectors with downward protrusions are installed on both the front and rear sides of the bottom of the side frame.

[0012] As a further improvement of this utility model, a clearance gap is provided between the fixed handle and the top plate.

[0013] As a further improvement of this utility model, several pads for supporting the flip handle are installed on the top plate near the front side.

[0014] As a further improvement of this utility model, several elastic structures are installed between the front and rear sides of the handle push rod and the cavity inside the flip handle.

[0015] As a further improvement of this utility model, the elastic structure is a spring.

[0016] As a further improvement of this utility model, a bracket slot for inserting the flip handle is provided at the rear end of the flip bracket.

[0017] As a further improvement of this utility model, the pin is mounted on the handle push rod by a spring pin.

[0018] As a further improvement of this utility model, a second pin hole is provided on the flip bracket in front of the first pin hole.

[0019] As a further improvement of this utility model, a handle locking block that is connected to the fixed handle is provided on the inner bottom of the handle adapter block.

[0020] By means of the above solution, this utility model has at least the following advantages:

[0021] This invention, through the flip handle assembly, allows operators to flexibly adjust and use the food cart according to different usage scenarios and needs, thereby improving the cart's mobility and spatial adaptability.

[0022] The flip handle assembly of this utility model cannot be flipped when not in use and can be stored on the top plate, saving space.

[0023] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the following are the preferred embodiments of this utility model and are described in detail with reference to the accompanying drawings. Attached Figure Description

[0024] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the structure of a flip-type handle for an aviation handcart according to this utility model;

[0026] Figure 2 yes Figure 1 Top view after removing the flip handle component;

[0027] Figure 3 yes Figure 1 A structural diagram of the fixed handle, the flip handle assembly, and the adapter block;

[0028] Figure 4 yes Figure 3 A schematic diagram of the structure after removing the fixed handle, the flip handle, and one of the flip brackets.

[0029] The meanings of the labels in the figures are as follows.

[0030] Side frame 1, rear frame 2, top plate 3, fixed handle 4, corner connector 5, flip handle assembly 6, handle adapter block 7, clearance gap 8, pad block 9, flip handle 10, flip bracket 11, button 12, handle push rod 13, elastic structure 14, bracket slot 15, pin 16, spring pin 17, pivot 18, locking pin 19, first pin hole 20, second pin hole 21, handle locking block 22. Detailed Implementation

[0031] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0032] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. 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 claimed invention, but merely to illustrate selected embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0033] like Figures 1-4 As shown, the first embodiment of this utility model is as follows:

[0034] This embodiment describes a flip-type handle structure for an aircraft trolley, with main structural components as follows: Figure 1 As shown, two side frames 1 are arranged side by side on the left and right sides. The entire structure is installed on the top of the kitchen cabinet via corner connectors 5 on the front and rear sides of the bottom of the side frames 1. A rear frame 2 is installed on the rear side between the two side frames 1, and a fixed handle 4 is installed on the front side between the two side frames 1. The user can use the fixed handle 4 when the flip handle assembly 6 is not open. A top plate 3 is installed on the inner side between the two side frames 1 and the rear frame 2. A clearance 8 is designed between the top plate 3 and the fixed handle 4 to facilitate better use of the fixed handle 4 by the operator.

[0035] The structure of the flip handle assembly 6 is as follows: Figure 3 and Figure 4 As shown, the main structure of the flip handle assembly 6 includes a flip handle 10, a flip bracket 11, a button 12, and a handle push rod 13. The flip handle 10 is parallel to the fixed handle 4. Flip brackets 11 are installed on both the left and right sides of the flip handle 10. The flip brackets 11 are then rotatably mounted on the side frame 1 via the handle adapter block 7.

[0036] Inside the cavity of the flip handle 10, there is a handle push rod 13 that is parallel to it. The handle push rod 13 can move back and forth a certain distance inside the cavity of the flip handle 10. The handle push rod 13 contacts the cavity inside the flip handle 10 through multiple elastic structures 14 (which may be springs or elastic blocks, etc.), so that the handle push rod 13 can be buffered to a certain extent during the back and forth movement.

[0037] A button 12 is installed on the front side of the middle part of the handle push rod 13. The button 12 passes through the button through hole on the flip handle 10 and then protrudes out of the outside of the flip handle 10. By pressing the button 12, the handle push rod 13 is driven to move back and forth in the cavity inside the flip handle 10.

[0038] Inside the cavity of the flip bracket 11, there is a pin 16 that is parallel to it. The rear side of the pin 16 is connected to the handle push rod 13 by a spring pin 17. The rear end of the pin 16 is adapted to the first pin hole 20 on the locking pin 19 located in the handle adapter block 7. When the handle push rod 13 moves the pin 16, the pin 16 can freely enter and exit the first pin hole 20.

[0039] Furthermore, a second pin hole 21 is provided on the flip bracket 11 in front of the first pin hole 20. In addition, the pin 16 can be inserted into the second pin hole 21 after being inserted into the first pin hole 20.

[0040] During installation, the left and right sides of the flip handle 10 are first inserted into the bracket slots 15 at the rear end of the flip bracket 11, and then locked by bolts and other locking devices.

[0041] When it is necessary to install the fixed handle 4, the fixed handle 4 is placed between the two handle adapter blocks 7, and the left and right sides of the fixed handle 4 are fitted onto the outside of the handle locking block 22, and then locked by bolts or other locking components.

[0042] like Figure 2 When the flip handle 10 needs to be stored on the top plate 3, several pads 9 are installed on the top plate 3 below the flip handle 10 to provide bottom support for the flip handle 10.

[0043] A brief description of the working principle of this embodiment:

[0044] When the flip handle assembly 6 is not needed, it is stored on the top plate 3, and the flip handle 10 is not flipped or moved at this time because the pin 16 is inserted into the first pin hole 20, which prevents the flip bracket 11 from rotating with the handle adapter block 7.

[0045] When the flip handle assembly 6 is needed, the handle push rod 13 is moved to the rear by pressing the button 12. At this time, the pin 16 leaves the first pin hole 20, so that the flip bracket 11 and the handle adapter block 7 can rotate, and then the flip handle 10 can be flipped.

[0046] The flip-up handle structure allows for adjustment of its position to suit different usage scenarios and user needs. When the food cart needs to be pushed, it can be flipped to a suitable angle for easy application of force, conforming to ergonomics and reducing physical exertion during pushing. For example, in a kitchen or a narrow aisle on an airplane, the flip handle 10 can be flipped to a position that allows for easy side-stepping and pushing, making it easier to control the movement of the food cart.

[0047] Furthermore, users of different heights and strengths have varying requirements for the height and angle of the handle when using the food cart. The flip-up handle structure allows for angle adjustment to accommodate the usage habits of more users, improving the versatility and ease of use of the food cart.

[0048] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0049] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0050] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A flip handle structure for an aircraft trolley, comprising side frames (1) arranged side by side, a rear frame (2) installed between the two side frames (1), a fixed handle (4) installed between the two side frames (1) and a top plate (3) installed inside the two side frames (1) and the rear frame (2). Its features are: It also includes a flip handle assembly (6), which includes a flip handle (10) parallel to the fixed handle (4) and flip brackets (11) installed on the left and right sides of the flip handle (10). Handle adapter blocks (7) are installed on the side frames (1) on the left and right sides of the fixed handle (4). The flip brackets (11) are installed together with the handle adapter blocks (7) through a rotating shaft (18). Inside the cavity of the flip handle (10), a handle push rod (13) is installed parallel to it. A button (12) installed in the middle of the handle push rod (13) passes through the button through hole on the flip handle (10) and then protrudes out of the outside of the flip handle (10). Inside the cavity of the flip bracket (11), a pin (16) is installed parallel to it. The rear side of the pin (16) is installed together with the handle push rod (13). A locking pin (19) is installed in the handle adapter block (7) in front of the pin (16). A first pin hole (20) is opened in the locking pin (19) for the aforementioned pin (16) to be inserted.

2. The flip-type handle structure for an aircraft trolley as described in claim 1, characterized in that, Angle connectors (5) protruding downwards are installed on both the front and rear sides of the bottom of the side frame (1).

3. The flip-type handle structure for an aircraft trolley as described in claim 1, characterized in that, An clearance gap (8) is provided between the fixed handle (4) and the top plate (3).

4. The flip-type handle structure for an aircraft trolley as described in claim 1, characterized in that, Several pads (9) for supporting the flip handle (10) are installed on the top plate (3) near the front side.

5. The flip-type handle structure for an aircraft trolley as described in claim 1, characterized in that, Several elastic structures (14) are installed between the front and rear sides of the handle push rod (13) and the cavity inside the flip handle (10).

6. The flip-type handle structure for an aircraft trolley as described in claim 5, characterized in that, The elastic structure (14) is a spring.

7. The flip-type handle structure for an aircraft trolley as described in claim 1, characterized in that, A bracket slot (15) is provided at the rear end of the flip bracket (11) for inserting the flip handle (10).

8. The flip-type handle structure for an aircraft trolley as described in claim 1, characterized in that, The pin (16) is mounted on the handle push rod (13) by a spring pin (17).

9. The flip-type handle structure for an aircraft trolley as described in claim 1, characterized in that, A second pin hole (21) is provided on the flip bracket (11) in front of the first pin hole (20).

10. The flip-type handle structure for an aircraft trolley as described in claim 1, characterized in that, A handle locking block (22) connected to the fixed handle (4) is provided on the inner bottom of the handle adapter block (7).

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