Folding type rear supporting leg of trolley
By designing the folding rear legs of the trolley, the rotating connection of the frame assembly, leg members and leg cylinders achieve folding extension and storage of the rear legs, which solves the large space occupied by the rear legs in the prior art. The problem of poor performance improves the portability and stability of underground construction.
Patent Information
- Application Number
- CN202420121744.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-17
- Publication Date
- 2024-12-13
- Estimated Expiration
- 2034-01-17
AI Technical Summary
The existing rear leg devices occupy a large amount of space during underground construction, resulting in poor passing through the trolley, especially inconvenient steering in narrow spaces, and difficult to provide stable support on uneven grounds, which can easily lead to overturn accidents.
A trolley folding rear legs are designed, which realizes folding extension and storage of the rear legs through the rotating connection of the frame assembly, leg members and leg cylinder, saving installation space and through parallel support. Leg members and support feet provide uniform support for improved portability.
It realizes space saving during underground construction, improves the portability and stability of the trolley, avoids overturning accidents caused by tilting, and enhances the steering ability in a narrow space.
Smart Images
Figure CN222162653U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of underground construction equipment, in particular to a foldable rear outrigger of a trolley. Background Art
[0002] The rear outrigger is a supporting device installed at the rear of the trolley to provide stable support and balance. When working on uneven or unstable ground, the rear outrigger is extended outward to the ground to lift the rear support of the trolley off the ground, effectively preventing the trolley from tilting backward due to the force generated by construction and causing a rollover accident. The existing rear outrigger is usually installed outward at the rear of the trolley, which takes up a lot of space and increases the span of the chassis on the ground, making the trolley's passability poor and difficult to turn in narrow spaces such as underground. Utility Model Content
[0003] The utility model aims to provide a foldable rear support leg of a trolley, which solves the above-mentioned technical problems, saves installation space and improves portability.
[0004] The embodiment of the utility model is realized through the following technical scheme: a foldable rear outrigger of a trolley, comprising a frame assembly, a leg member and a leg cylinder, one end of the leg member is rotatably connected to the frame assembly, and the other end is rotatably connected to a supporting foot, one end of the leg cylinder is rotatably connected to the frame assembly, and the other end is rotatably connected to the leg member, the leg member is provided with an avoidance groove for avoiding the leg cylinder, and the frame assembly is provided with a storage groove for storing the leg member and the leg cylinder.
[0005] Furthermore, the frame assembly includes a mounting seat, the leg member and the leg cylinder are both connected to the mounting seat pin shaft, and the connection point of the leg cylinder is higher than the connection point of the leg member.
[0006] Furthermore, the supporting foot includes a supporting seat connected to the end pin of the leg member and anti-slip teeth arranged at the bottom of the supporting seat.
[0007] Furthermore, the rear outrigger includes two sets of outrigger components arranged in parallel, an outrigger oil cylinder and a supporting foot.
[0008] Preferably, the frame assembly is provided with a partition for separating the two groups of outrigger components, outrigger cylinders and support feet.
[0009] Furthermore, the piston end of the outrigger oil cylinder is pin-connected to one end of the outrigger component close to the supporting foot.
[0010] Furthermore, the frame assembly is provided with a connection hole for bolt connection with the rear bottom end of the trolley.
[0011] The utility model has at least the following advantages and beneficial effects: by rotatably connecting the outrigger component and the outrigger oil cylinder to the frame assembly respectively, and then rotatably connecting the outrigger oil cylinder to the outrigger component, the rear outrigger can be folded, extended and stored, thus saving installation space and improving portability. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.
[0013] Figure 1 A schematic diagram of the structure of the foldable rear legs of a trolley provided by the utility model in an extended state;
[0014] Figure 2 A schematic diagram of the structure of the foldable rear legs of a trolley provided by the utility model in a storage state;
[0015] Figure 3 A front view of a foldable rear support leg of a trolley provided by the utility model;
[0016] Icons: 1-rear outrigger, 2-frame assembly, 20-storage slot, 21-mounting seat, 22-partition, 23-connecting hole, 3-outrigger component, 30-avoidance slot, 4-outrigger cylinder, 5-support foot, 51-support seat, 52-anti-slip teeth. DETAILED DESCRIPTION
[0017] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.
[0018] 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 present invention to be protected, 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.
[0019] Example
[0020] like Figure 1-3As shown, in the present embodiment, a foldable rear outrigger of a trolley is mainly disclosed, and its main structure includes a frame assembly 2, a leg member 3, a leg cylinder 4 and a supporting foot 5. The frame assembly 2 is provided with a connecting hole 23, and the frame assembly 2 is connected to the bottom end of the rear of the existing trolley by bolts to provide support and balance. One end of the leg member 3 is rotatably connected to the frame assembly 2, and the other end is rotatably connected to the supporting foot 5. One end of the leg cylinder 4 is rotatably connected to the frame assembly 2, and the other end is rotatably connected to the leg member 3. The leg member 3 is provided with an avoidance groove 30 for avoiding the leg cylinder 4, and the frame assembly 2 is provided with a storage groove 20 for storing the leg member 3 and the leg cylinder 4. Through the extension and retraction of the leg cylinder 4, the leg member 3 can be controlled to rotate around the connecting axis between it and the frame assembly 2, so as to realize foldable extension and storage, save installation space and improve portability.
[0021] Furthermore, in a specific implementation, the above-mentioned frame assembly 2 provided in the embodiment of the utility model includes a mounting seat 21, the leg member 3 and the leg cylinder 4 are both pin-connected to the mounting seat 21, and the connection point of the leg cylinder 4 is higher than the connection point of the leg member 3. It should be noted that the mounting seat 21 can be composed of two L-shaped clips, and the mounting seat 21 is corner-connected to the frame assembly 2, and the leg member 3 and the leg cylinder 4 are respectively installed between the two clips, and the connection points are respectively located at both ends of the L-shaped clip, which saves manufacturing materials and ensures the connection strength.
[0022] Furthermore, in a specific implementation, the above-mentioned supporting leg 5 provided in the embodiment of the utility model includes a supporting seat 51 connected to the end pin shaft of the supporting leg member 3 and an anti-slip tooth 52 arranged at the bottom of the supporting seat 51. The supporting leg 5 can rotate around the pin shaft of the supporting leg 5 and the supporting leg member 3 to provide support for the trolley on a slope of a certain degree, thereby increasing the parking stability.
[0023] Furthermore, in a specific implementation, the rear support leg 1 provided in the embodiment of the utility model includes two sets of support leg components 3, support leg cylinders 4 and support feet 5 arranged in parallel, providing uniform supporting force, so that the trolley is more stable when parked. In addition, the frame assembly 2 is provided with a partition 22 for separating the two sets of support leg components 3, support leg cylinders 4 and support feet 5, thereby avoiding mutual interference between the rear support legs 1.
[0024] Furthermore, in a specific implementation, the piston end of the above-mentioned outrigger oil cylinder 4 provided in the embodiment of the utility model is pin-connected to one end of the outrigger component 3 close to the supporting foot 5, so as to facilitate the unfolding and storage of the outrigger component 3.
[0025] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.
Claims
1. A foldable rear support leg of a trolley, characterized in that: The vehicle comprises a frame assembly (2), a leg member (3) and a leg cylinder (4); one end of the leg member (3) is rotatably connected to the frame assembly (2), and the other end is rotatably connected to a support foot (5); one end of the leg cylinder (4) is rotatably connected to the frame assembly (2), and the other end is rotatably connected to the leg member (3); the leg member (3) is provided with an avoidance groove (30) for avoiding the leg cylinder (4); and the frame assembly (2) is provided with a storage groove (20) for storing the leg member (3) and the leg cylinder (4).
2. The foldable rear support leg of a trolley as claimed in claim 1, characterized in that: The frame assembly (2) comprises a mounting seat (21), the leg member (3) and the leg cylinder (4) are both pin-connected to the mounting seat (21), and the connection point of the leg cylinder (4) is higher than the connection point of the leg member (3).
3. The foldable rear support leg of a trolley as claimed in claim 1, characterized in that: The support foot (5) comprises a support seat (51) connected to the end of the support leg member (3) by a pin shaft and anti-slip teeth (52) arranged at the bottom of the support seat (51).
4. The foldable rear support leg of a trolley as claimed in claim 1, characterized in that: The rear outrigger (1) comprises two groups of outrigger components (3) arranged in parallel, an outrigger oil cylinder (4) and a supporting foot (5).
5. The foldable rear support leg of a trolley as claimed in claim 4, characterized in that: The frame assembly (2) is provided with a partition (22) for separating two groups of the outrigger components (3), outrigger oil cylinders (4) and support feet (5).
6. The foldable rear legs of a trolley as claimed in claim 1, characterized in that: The piston end of the outrigger oil cylinder (4) is pin-connected to one end of the outrigger component (3) close to the supporting foot (5).
7. The foldable rear legs of a trolley as claimed in claim 1, characterized in that: The frame assembly (2) is provided with a connection hole (23) for connecting with the rear bottom end bolt of the trolley.