Pneumatic telescopic movable step support assembly

Abstract

The utility model belongs to the technical field of telescopic step supports, and discloses a pneumatic telescopic movable step support assembly which comprises four folding frames, pedals are arranged at the tops of the folding frames, linkage frames are arranged on the two sides of one end of the outer wall of each folding frame, and bolts are arranged on the sides, away from the folding frames, of the linkage frames in a penetrating mode. Handrail supporting rods are arranged on the two sides of the end, away from the linkage frame, of the folding frame, handrails are arranged between the opposite handrail supporting rods, evenly-distributed anti-skid grooves are formed in the top of the pedal in a penetrating mode, and the stepping support assembly is designed in a modular mode and mainly comprises the folding frame, the pedal, the linkage frame, the handrail supporting rods, the handrails and the like. The components are stably connected through connecting pieces such as bolts, assembly, disassembly and replacement are convenient, telescopic adjustment of the stepping support is achieved through a pneumatic telescopic technology and a hydraulic pump and a hydraulic telescopic rod, and the design improves the flexibility and adaptability of the stepping support.

Description

Technical Field

[0001] This application relates to the field of telescopic step bracket technology, and more specifically, to a pneumatic telescopic movable step bracket assembly. Background Art

[0002] In the current school bus market, most rear safety door treads use a hydraulic folding design, but their installation location is mostly concentrated below the passenger door treads. For the rear safety door, the installation location is limited and lacks a specific design. In contrast, pneumatic telescopic treads are gradually becoming the preferred choice for school bus rear safety door treads due to their ease of operation and rapid response.

[0003] A search revealed a public disclosure (announcement) number: CN205800948U, which discloses a pneumatic telescopic movable step bracket assembly for a school bus rear safety door. It includes two brackets arranged in a left-right direction, connected by a connecting beam. The upper surfaces of the two brackets are connected to the chassis frame, and the lower surfaces are connected to the pneumatic telescopic movable step. As can be seen from the above technical solution, this utility model uses a connecting beam to connect the two brackets, which in turn connect the chassis frame and the pneumatic telescopic movable step, and the pneumatic telescopic movable step does not extend beyond the lower edge of the rear bumper. The bracket assembly of this utility model has a simple overall structure, is easy to install, and facilitates the maintenance and replacement of the pneumatic telescopic movable step.

[0004] Existing pneumatic telescopic step brackets are mostly single-layer telescopic, cannot be folded, occupy a large space, and are not suitable for installation on some smaller vehicles.

[0005] To address the aforementioned issues, this application provides a pneumatic telescopic movable step bracket assembly. Utility Model Content

[0006] The pneumatic telescopic movable step bracket assembly provided in this application adopts the following technical solution:

[0007] A pneumatic telescopic movable step support assembly includes four folding frames. Each folding frame has a foot pedal on its top. Each folding frame has a linkage frame on both sides of one end of its outer wall. Each linkage frame has a bolt running through it on the side away from the folding frame. Each folding frame has a handrail on both sides of the side away from the linkage frame. Each handrail has a handrail between its opposite sides. Each foot pedal has a uniformly distributed anti-slip groove running through its top. Each handrail has a docking positioning block at both ends. The topmost linkage frame has a drive mechanism for installation.

[0008] Furthermore, the linkage frame is connected to the folding frame by bolts, and the handrails are connected in an alternating pattern.

[0009] Furthermore, the installation drive mechanism includes a clamping plate, a mounting frame at the bottom of the clamping plate, an extension plate on the side of the mounting frame away from the handrail support, symmetrical pump fixing plates at the bottom of the extension plate, hydraulic pumps positioned opposite each other on the pump fixing plates, a hydraulic telescopic rod at the output end of the hydraulic pump, a connector at one end of the hydraulic telescopic rod, anti-slip texture on the top of the clamping plate, symmetrical mating clamping plates positioned opposite each other on the mounting frame, and symmetrical through-posts positioned between the mating clamping plates and the clamping plates.

[0010] Furthermore, the side of the connector away from the hydraulic telescopic rod is fixed to the foot pedal.

[0011] In summary, this application includes the following beneficial technical effects:

[0012] This step support assembly adopts a modular design, mainly including a folding frame, foot pedals, a linkage frame, handrail supports, and handrails. These components are securely connected by bolts and other connectors, facilitating both assembly and disassembly / replacement. Pneumatic telescopic technology, using a hydraulic pump and hydraulic telescopic rod, enables the step support to extend and retract. This design not only improves the flexibility and adaptability of the step support but also makes operation more effortless and convenient. The foot pedal surface is designed with evenly distributed anti-slip grooves to effectively prevent users from slipping during use, improving safety. When not in use, the step support assembly can retract to a smaller size, saving space; when needed, it can quickly extend to the required length and height using pneumatic telescopic technology to meet user needs. This step support assembly is not only suitable for specific vehicle types such as school buses but can also be customized and modified to meet the needs of different vehicles and scenarios. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this application;

[0014] Figure 2 For the purposes of this application Figure 1 Schematic diagram of the structure at point A in the middle;

[0015] Figure 3 For the purposes of this application Figure 1 Schematic diagram of the structure at point B;

[0016] Figure 4 This is a schematic diagram of the handrail structure of this application.

[0017] Explanation of the labels in the diagram:

[0018] 1. Folding frame; 2. Step-on pedal; 3. Linkage frame; 4. Bolt; 5. Handrail support rod; 6. Handrail; 7. Mounting drive mechanism; 701. Clamping plate; 702. Mounting frame; 703. Extension plate; 704. Pump fixing plate; 705. Hydraulic pump; 706. Hydraulic telescopic rod; 707. Connector; 708. Anti-slip texture; 709. Matching clamping plate; 710. Through column; 8. Anti-slip groove; 9. Docking positioning block. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0020] In the description of this application, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application 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 application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0022] Example:

[0023] This application discloses a pneumatic telescopic movable step bracket assembly. Please refer to [link / reference]. Figures 1-4The system includes four folding frames 1. Each folding frame 1 has a footrest 2 on its top. Each folding frame 1 has a linkage frame 3 on both sides of one end of its outer wall. Bolts 4 penetrate the linkage frame 3 on the side furthest from the folding frame 1. Handrail supports 5 are provided on both sides of the folding frame 1 furthest from the linkage frame 3. Handrails 6 are positioned opposite each other on the handrail supports 5. Evenly distributed anti-slip grooves 8 are provided on the top of each footrest 2. Both ends of each handrail 6 have docking positioning blocks 9. A drive mechanism 7 is installed on the top linkage frame 3. The linkage frames 3 are connected to the folding frames 1 by bolts 4. The handrails 6 are staggered. Each folding frame is equipped with a footrest 2 on its top, providing a stable standing platform for the user. The foot pedal surface is designed with evenly distributed anti-slip grooves 8, effectively enhancing stability and safety during stepping and preventing slips. On both sides of one end of the outer wall of the folding frame 1, linkage frames 3 are cleverly installed. These linkage frames not only serve as structural supports but are also tightly connected to the folding frame via bolts 4, achieving a stable connection and quick assembly / disassembly between components, facilitating maintenance and replacement. To improve the user experience, each folding frame has a handrail support 5 at the end furthest from the linkage frame, with staggered handrails 6 installed between these support rods. The handrail design is not only ergonomic, helping users maintain balance when stepping up and down, but the mating positioning blocks 9 at both ends also ensure the accuracy and stability of the handrail installation.

[0024] The installation drive mechanism 7 includes a clamping plate 701, a mounting frame 702 at the bottom of the clamping plate 701, an extension plate 703 on the side of the mounting frame 702 away from the handrail support 5, symmetrical pump fixing plates 704 at the bottom of the extension plate 703, hydraulic pumps 705 opposite each other on the pump fixing plates 704, a hydraulic telescopic rod 706 at the output end of the hydraulic pump 705, a connector 707 at one end of the hydraulic telescopic rod 706, and a protective device at the top of the clamping plate 701. The mounting frame 702 features symmetrical mating clamping plates 709, with symmetrical through-posts 710 between the mating clamping plates 709 and clamping plates 701. The connecting piece 707, on the side away from the hydraulic telescopic rod 706, is fixed to the footrest 2. The clamping plate 701 serves as the top support of the mounting frame, not only securely connecting the entire drive mechanism but also featuring anti-slip textures 708 on its top to prevent slippage during operation and improve safety. The mounting frame 702, as the basic structure of the drive mechanism, provides a stable mounting platform for other components. An extension plate 703 is located on the side away from the handrail support 5, further supporting and securing key components such as the hydraulic pump. The extension plate 703 serves as a transition structure connecting the mounting frame 702 and the pump fixing plate 704. The pump mounting plate 704 securely mounts the hydraulic pump 705, ensuring its stability and reliability during operation. The hydraulic pump 705, acting as a power source, drives the hydraulic telescopic rod 706 to extend and retract via hydraulic pressure. One end of the hydraulic telescopic rod 706 is connected to the foot pedal 2 via a connector 707, enabling the adjustment of the step bracket's extension and retraction. The connector 707 serves as a bridge between the hydraulic telescopic rod 706 and the foot pedal 2, ensuring accurate and efficient power transmission. A clamping plate 709 and a through-post 710 are also present, with the clamping plate 709 and clamping plate 701 positioned opposite each other and connected and fixed via the through-post 710. This design not only enhances the overall stability of the drive mechanism but also facilitates disassembly and maintenance when needed.

[0025] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A pneumatic telescopic movable step support assembly, comprising a folding frame (1), characterized in that: The number of folding frames (1) is four. Each folding frame (1) is provided with a foot pedal (2) at the top. Each folding frame (1) is provided with a linkage frame (3) on both sides of one end of the outer wall. Each linkage frame (3) is provided with a bolt (4) on the side away from the folding frame (1). Each folding frame (1) is provided with a handrail support (5) on both sides of the side away from the linkage frame (3). Each handrail support (5) is provided with a handrail (6) between opposite sides. Each foot pedal (2) is provided with a uniformly distributed anti-slip groove (8) at the top. Each handrail (6) is provided with a docking positioning block (9) at both ends. The linkage frame (3) at the top is provided with a drive mechanism (7).

2. The pneumatic telescopic movable step bracket assembly according to claim 1, characterized in that: The linkage frame (3) is connected to the folding frame (1) by bolts (4), and the handrails (6) are connected in an alternating pattern.

3. The pneumatic telescopic movable step bracket assembly according to claim 1, characterized in that: The installation drive mechanism (7) includes a clamping plate (701), a mounting frame (702) at the bottom of the clamping plate (701), an extension plate (703) on the side of the mounting frame (702) away from the handrail support (5), a symmetrical pump fixing plate (704) at the bottom of the extension plate (703), a hydraulic pump (705) between the pump fixing plates (704), a hydraulic telescopic rod (706) at the output end of the hydraulic pump (705), a connector (707) at one end of the hydraulic telescopic rod (706), an anti-slip texture (708) at the top of the clamping plate (701), symmetrical mating clamping plates (709) between the mounting frame (702), and symmetrical through columns (710) between the mating clamping plates (709) and the clamping plate (701).

4. The pneumatic telescopic movable step bracket assembly according to claim 3, characterized in that: The connector (707) is fixed to the pedal (2) on the side away from the hydraulic telescopic rod (706).

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