Position adjusting mechanism of cart handle

Abstract

The utility model discloses a position adjusting mechanism of a cart handle, which comprises a cart main body, and the cart main body is provided with a first wheel set arranged on one side of the bottom of the cart main body and a second wheel set arranged on the other side of the bottom of the cart main body. The handle is movably installed at the bottom of the cart body, the angle of the handle can be adjusted relative to the cart body, and the cart body can be switched into a four-wheel cart or a two-wheel cart according to the position of the handle; and the adjusting mechanism is arranged on the handle, and the position of the handle relative to the cart main body is adjusted by extruding the adjusting mechanism. The rotatable shaft is arranged between the cart main body and the handle, and the extrusion type adjusting mechanism is designed on the handle, so that the handle can be adjusted in multiple angles relative to the cart main body, the operation requirements of users with different heights are met, and a four-wheel mode and a two-wheel mode can be quickly switched according to use scenes; and the use flexibility and convenience of the cart in the environments such as narrow space or stairs are improved.

Description

Technical Field

[0001] This utility model relates to a trolley, specifically to a trolley handle position adjustment mechanism. Background Technology

[0002] In daily life, trolleys (such as shopping carts, luggage carts, and tool carts) are widely used in supermarkets, airports, train stations, and industrial production. For users, trolleys can significantly reduce the physical exertion required to move items, improving work and life efficiency. However, existing trolleys generally have the following structural shortcomings:

[0003] Many traditional trolleys are designed with fixed handles, meaning the handle is in a single position or can only be adjusted within a very small range. For users of different heights, or in different work environments (such as needing to quickly switch scenes, from walking smoothly on a large surface to carrying things on narrow stairs), such single or limited adjustable handles cannot meet ergonomic and diverse application needs. Users often have to bend over or use uncomfortable postures to push and pull the trolley.

[0004] In some scenarios, to improve transport flexibility or maneuverability, users sometimes need to convert the trolley to a two-wheeled mode for easier handling in confined spaces or when climbing stairs. However, in traditional trolleys, switching between two wheels and four wheels often requires significant disassembly, assembly, or additional adjustments, which is not only time-consuming and labor-intensive but also poses certain safety hazards during the process. The lack of a simple and reliable handle angle adjustment device further limits the flexibility and convenience of trolley use.

[0005] While some strollers feature angle adjustment mechanisms on their handles, common adjustment mechanisms are either complex to operate, requiring users to frequently tighten or lock them with tools; or they offer poor stability after adjustment, easily leading to loosening or handle wobbling during use, making it difficult to guarantee the stroller's safety and stability. Especially when carrying heavy objects or pushing at high speeds, unstable handle adjustments can easily cause the stroller to go out of control or even tip over, posing a significant safety risk.

[0006] In summary, designing a handle position adjustment mechanism that can freely switch between two-wheel and four-wheel modes and is easy to operate and has reliable positioning has become a technical problem that urgently needs to be solved in this field. Summary of the Invention

[0007] To address the aforementioned issues, this invention provides a position adjustment mechanism for a trolley handle, aiming to improve the convenience and safety of the trolley while meeting diverse usage needs.

[0008] This utility model is achieved through the following technical solution: a trolley handle position adjustment mechanism, comprising:

[0009] A trolley body, the trolley body having a first wheel set disposed on one side of the bottom of the trolley body and a second wheel set disposed on the other side of the bottom of the trolley body;

[0010] The handle is movably mounted at the bottom of the trolley body. The handle can be adjusted relative to the trolley body at an angle, and the trolley body can be switched between a four-wheeled trolley and a two-wheeled trolley depending on the position of the handle.

[0011] An adjustment mechanism is provided on the handle, and the position of the handle relative to the trolley body is adjusted by squeezing the adjustment mechanism.

[0012] As a preferred technical solution, a rotating shaft is provided between the handle and the trolley body, and the handle can rotate relative to the trolley body through the rotating shaft.

[0013] As a preferred technical solution, the adjustment mechanism includes an adjustment bushing disposed on the handle. The adjustment bushing is disposed between positioning discs on both sides of the bottom of the trolley body. The positioning discs are provided with multiple positioning shaft holes in the circumferential direction. A fixed shaft is provided on each of the two sides inside the adjustment bushing. The fixed shaft is inserted into the corresponding positioning shaft hole to complete the positioning of the adjustment bushing.

[0014] As a preferred technical solution, a spring is provided on the opposite surfaces of the two fixed shafts, and the spring pushes the fixed shafts on both sides out.

[0015] As a preferred technical solution, a toggle key is provided on the fixed shaft near the spring side. When the two toggle keys are pressed against each other, the fixed shaft separates from the positioning shaft hole.

[0016] As a preferred technical solution, a sliding adjustment groove is provided on the adjusting sleeve corresponding to the position of the toggle key, and the toggle key passes through the sliding adjustment groove and extends to the outside.

[0017] As a preferred technical solution, the trolley body is provided with a groove corresponding to the position of the handle, and the handle is located in the groove.

[0018] The beneficial effects of this utility model are as follows: By setting a rotatable shaft between the trolley body and the handle, and designing a squeeze-type adjustment mechanism on the handle, the handle can be adjusted at multiple angles relative to the trolley body. This not only meets the operational needs of users of different heights, but also allows for quick switching between four-wheel and two-wheel modes depending on the usage scenario, improving the flexibility and convenience of the trolley in narrow spaces or stairwells. At the same time, accurate locking is achieved through the cooperation of the positioning plate and the fixed shaft, and the fixed shaft is automatically reset using a spring structure, avoiding the problem of loosening or shaking during frequent use, and ensuring the stability and safety of the handle after adjustment. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the bottom structure of this utility model;

[0022] Figure 3 This is a schematic diagram of the structure of this utility model after removing the adjusting bushing;

[0023] Explanation of reference numerals in the attached figures:

[0024] 3. Cart body; 1. First wheel set; 2. Second wheel set; 5. Handle; 11. Rotating shaft; 8. Adjusting bushing; 7. Positioning plate; 6. Positioning shaft hole; 12. Fixed shaft; 13. Spring; 10. Toggle key; 9. Sliding adjustment groove; 4. Groove. Detailed Implementation

[0025] All features disclosed in this specification, or all steps in all disclosed methods or processes, may be combined in any way, except for mutually exclusive features and / or steps.

[0026] Any feature disclosed in this specification (including any appended claims, abstract, and drawings) may be replaced by other equivalent or similar features, unless specifically stated otherwise. That is, unless specifically stated otherwise, each feature is merely one example of a series of equivalent or similar features.

[0027] like Figures 1-3As shown, the present invention provides a position adjustment mechanism for a trolley handle 5, including a trolley body 3, a first wheel set 1 on one side of the bottom of the trolley body 3, a second wheel set 2 on the other side of the bottom, and a handle 5 movably installed at the bottom of the trolley body 3. The handle 5 can be adjusted at an angle relative to the trolley body 3, so that the trolley can flexibly switch between four-wheel mode and two-wheel mode.

[0028] When the handle 5 is at a vertical angle, the first wheel group 1 and the second wheel group 2 of the trolley body 3 are both in contact with the ground, so that the trolley can operate in four-wheel mode, which is suitable for large-scale movement on flat ground.

[0029] When the handle 5 is adjusted to a horizontal angle, the trolley body 3 and the handle 5 are horizontal, so that only part of the wheel set is in contact with the ground, thus forming a two-wheel mode to adapt to usage scenarios such as narrow spaces and carrying up stairs, and improve the flexibility and adaptability of the trolley.

[0030] To achieve the aforementioned angle adjustment and ensure stability during use, a rotating shaft 11 is provided between the handle 5 and the trolley body 3. The handle 5 can rotate around the rotating shaft 11, thereby adjusting its position relative to the trolley body 3. An adjustment mechanism is provided on the handle 5, which includes an adjustment bushing 8, which is installed between the positioning discs 7 on both sides of the bottom of the trolley body 3.

[0031] The positioning disc 7 has multiple positioning shaft holes 6 in the circumferential direction. The adjusting sleeve 8 has fixed shafts 12 on both sides inside. The fixed shafts 12 can be inserted into the positioning shaft holes 6 to position the adjusting sleeve 8, thereby locking the handle 5 at different angles.

[0032] To ensure that the fixed shaft 12 can be reliably embedded in the positioning shaft hole 6 and automatically reset after adjustment, a spring 13 is provided between the opposite surfaces of the fixed shaft 12. The spring 13 applies a pushing force to make the fixed shaft 12 naturally pop out into the positioning shaft hole 6, ensuring that the handle 5 is stably locked at the selected angle.

[0033] When adjusting the angle of the handle 5, the release operation of the fixed shaft 12 is achieved by the toggle key 10 provided on the fixed shaft 12. The toggle key 10 is located on the side of the fixed shaft 12 near the spring 13 and passes through the sliding adjustment groove 9 provided on the adjusting sleeve 8, so that the toggle key 10 is exposed to the outside of the handle 5.

[0034] When the user needs to adjust the angle of the handle 5, simply press both toggle buttons 10 at the same time, and the fixed shaft 12 will retract from the positioning shaft hole 6, allowing the adjusting sleeve 8 to rotate freely, thereby driving the handle 5 to rotate around the rotating shaft 11 to a new angle position; after releasing the toggle button 10, the fixed shaft 12 will automatically reset under the action of the spring 13 and be inserted into the new positioning shaft hole 6 to complete the new angle locking.

[0035] In addition, in order to optimize the overall structure of the trolley and avoid the handle 5 taking up too much space during storage or transportation, the trolley body 3 is provided with a slot 4 at the position of the corresponding handle 5, so that when the handle 5 is adjusted to the storage angle, it can be accommodated in the slot 4, thereby reducing the overall size and improving storage convenience.

[0036] In summary, this utility model, by setting a rotatable shaft 11 between the trolley body 3 and the handle 5, and combining the toggle key 10 and the spring 13 reset structure, achieves flexible adjustment and stable positioning of the handle 5 angle. It has the advantages of simple operation, flexible switching, stable structure and wide applicability, and can effectively improve the convenience and safety of the trolley.

[0037] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions conceived without inventive effort should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope defined in the claims.

Claims

1. A position adjusting mechanism of a pushchair handle, characterized in that, The utility model relates to a kind of stroller, including: Stroller body (3), the stroller body (3) has the first wheel group (1) being arranged in the bottom side of stroller body (3) and the second wheel group (2) being arranged in the bottom other side of stroller body (3); Handle (5), the handle (5) is movably mounted in the bottom position of the stroller body (3), the handle (5) can be adjusted angle relative to the stroller body (3), the stroller body (3) can be switched as four-wheel stroller or two-wheel stroller according to the position of the handle (5); Adjusting mechanism, adjusting mechanism is arranged on the handle (5), and the position of the handle (5) relative to the stroller body (3) is adjusted by extruding adjusting mechanism.

2. A position adjustment mechanism for a pushchair handle according to claim 1, characterised in that: A rotating shaft (11) is arranged between the handle (5) and the stroller body (3), and the handle (5) can be rotated relative to the stroller body (3) through the rotating shaft (11).

3. The position adjustment mechanism of a cart handle according to claim 1, characterized in that: The adjusting mechanism includes an adjusting shaft sleeve (8) arranged on the handle (5), the adjusting shaft sleeve (8) is arranged between the positioning disc (7) on both sides of the bottom of the stroller body (3), a plurality of positioning shaft holes (6) are arranged in the circumferential direction of the positioning disc (7), two fixed shafts (12) are respectively arranged in the adjusting shaft sleeve (8) on both sides, the fixed shaft (12) is inserted into the corresponding positioning shaft hole (6) to complete the positioning of the adjusting shaft sleeve (8).

4. A position adjustment mechanism for a pushchair handle according to claim 3, characterised in that: A spring (13) is arranged on the opposite surface of the two fixed shafts (12), and the spring (13) pushes out the fixed shaft (12) on both sides.

5. A position adjustment mechanism for a pushchair handle according to claim 4, characterised in that: A push key (10) is respectively arranged on the fixed shaft (12) close to the side of the spring (13), when the two push keys (10) are extruded, the fixed shaft (12) is separated from the positioning shaft hole (6).

6. A position adjustment mechanism for a pushchair handle according to claim 5, wherein: A sliding adjusting groove (9) is arranged on the adjusting shaft sleeve (8) corresponding to the position of the push key (10), and the push key (10) passes through the sliding adjusting groove (9) and extends to the outside.

7. The position adjustment mechanism of a cart handle according to claim 1, characterized in that: A slot (4) is arranged on the stroller body (3) corresponding to the position of the handle (5), and the handle (5) is located in the slot (4).

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