Touring car extension ladder

Abstract

The motor home extension ladder comprises a first rod body, a second rod body, a connecting piece, a movable piece, a mounting assembly and a limiting assembly, the first rod body and the second rod body are located on a first plane, and the connecting piece is mounted between the first rod body and the second rod body to fix the first rod body and the second rod body; the movable part is movably mounted on the connecting part, the mounting assembly is rotationally mounted on the first rod body and the second rod body, the first rod body and the second rod body can be connected with the motor home through the mounting assembly, and the limiting assembly is mounted on the movable part to prevent the movable part from being separated from the connecting part. The telescopic ladder is stable and reliable in the using process in combination with the limitation of the limiting assembly on the movable part and the structural design of the connecting part, and the safety of a user is effectively guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of ladders, and in particular to a telescopic ladder for a recreational vehicle. Background Art

[0002] Currently, climbing ladders used in RVs mostly adopt sheet metal main body welded structure.

[0003] This type of product has obvious defects: First, the sheet metal material makes the climbing ladder heavy and bulky. The space in the RV is limited. Not only does it take up too much storage space, it is also extremely inconvenient to carry, thus affecting the use of the RV. Summary of the Invention

[0004] In order to solve the technical problems existing in the background technology, the present invention proposes a telescopic ladder for a recreational vehicle.

[0005] The present invention proposes a telescopic ladder for a recreational vehicle, comprising: a first rod body, a second rod body, a connecting piece, a movable piece, a mounting assembly and a limiting assembly. The first rod body and the second rod body are located on the same first plane. The connecting piece is installed between the first rod body and the second rod body to fix the first rod body and the second rod body. The movable piece is movably installed on the connecting piece. The mounting assembly is rotatably installed on the first rod body and the second rod body. The first rod body and the second rod body can be connected to the recreational vehicle through the mounting assembly. The limiting assembly is installed on the movable piece to prevent the movable piece from detaching from the connecting piece.

[0006] Preferably, the mounting assembly includes a top plate, the upper ends of the first rod and the second rod are rotatably mounted on both ends of the top plate respectively, the top plate has a plurality of first screw holes, and a first bolt that can be connected to the RV is installed on any first screw hole.

[0007] Preferably, the connecting member includes a plurality of first transverse plates arranged in parallel at equal intervals, any one of the first transverse plates connects the first rod body and the second rod body, and the lengths of the plurality of first transverse plates gradually increase from top to bottom.

[0008] Preferably, the movable part includes a first extension rod and a second extension rod, and the first horizontal plate at the lower end has a first mounting hole and a second mounting hole. The first extension rod is installed on the first mounting hole, and the second extension rod is installed on the second mounting hole. The first extension rod and the second extension rod are arranged in parallel, and a plurality of parallel second horizontal plates are fixedly installed between the first extension rod and the second extension rod.

[0009] Preferably, a first support rod and a second support rod are respectively installed at the bottom of the first extension rod and the second extension rod, and the first support rod and the second support rod are arranged in parallel.

[0010] Preferably, a first side rod vertically arranged with the first extension rod is fixedly installed in the middle part of the first extension rod, a first disc is installed on the first side rod, a plurality of second screw holes are provided on the first disc, and a second bolt that can be connected to the RV is installed on any second screw hole, a second side rod vertically arranged with the second extension rod is fixedly installed in the middle part of the second extension rod, a second disc is installed on the second side rod, a plurality of third screw holes are provided on the second disc, and a third bolt that can be connected to the RV is installed on any third screw hole.

[0011] Preferably, the limiting assembly includes a first block installed on the upper end of the first extension rod and a second block installed on the upper end of the second extension rod. The first block is fixed to the first extension rod by a fourth bolt, and the second block is fixed to the second extension rod by a fifth bolt.

[0012] Preferably, the diameter of the first clamping block is larger than the aperture of the first mounting hole, and the diameter of the second clamping block is larger than the aperture of the second mounting hole.

[0013] The telescopic ladder for RVs proposed by the present invention has the following advantages:

[0014] 1. The multi-faceted installation component design, combined with the restriction of movable parts by the limit components and the structural design of the connecting parts, makes the telescopic ladder stable and reliable during use, easy to use and effectively ensures the safety of users.

[0015] 2. Made of 6005T5 engineering aluminum alloy, it's significantly lighter than traditional sheet metal. Its telescopic structure retracts when not in use, reducing space and making it ideal for the limited storage environments of RVs. Its modular design simplifies installation, allowing users to install, disassemble, and maintain it without specialized tools or skills. The telescopic function allows for flexible adjustment of ladder length to suit varying heights. The UV-resistant spray-coated surface significantly improves weather resistance and extends service life. The stylish matte black exterior enhances the overall visual appeal of your RV. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is an overall structural diagram of a RV telescopic ladder proposed by the present invention;

[0017] Figure 2 This is a front view of a telescopic ladder for RVs proposed by the present invention;

[0018] Figure 3 This is a side view of a telescopic ladder for a recreational vehicle proposed by the present invention;

[0019] Figure 4 This is an exploded view of a RV telescopic ladder proposed by the present invention. DETAILED DESCRIPTION

[0020] refer to Figure 1-4The present invention proposes a telescopic ladder for RVs, with a main body structure: the telescopic ladder body is composed of a first rod body 1 and a second rod body 2, both of which are in the first plane. The material of 6005T5 engineering aluminum alloy is selected, which greatly reduces the weight while ensuring high strength.

[0021] Connector 3: It comprises multiple equally spaced, parallel first cross plates 31. Each cross plate 31 connects the first rod 1 to the second rod 2 at its ends, and the lengths of the cross plates 31 gradually increase from top to bottom. This design not only enhances structural stability but also ensures more uniform force distribution during the extension and retraction of the movable member 4, conforming to ergonomics and making it easier for users to grip and step on the structure while climbing.

[0022] Movable member 4: Movable and mounted on connecting member 3, it consists of a first extension rod 41 and a second extension rod 42. The first horizontal plate 31 at the bottom is provided with a first mounting hole 311 and a second mounting hole 312, into which the first and second extension rods 41 and 42 are mounted, respectively, parallel to each other. Multiple parallel second horizontal plates 43 are fixed between the two, forming a ladder for climbing. First support rods 411 and second support rods 421 are also mounted at the bottom of the first and second extension rods 41 and 42, respectively. These provide additional support and enhance overall stability when the telescopic ladder is fully extended.

[0023] Mounting assembly 5: Rotatably mounted on the upper ends of the first rod body 1 and the second rod body 2, it includes a top plate 51. The upper ends of the first rod body 1 and the second rod body 2 are respectively connected to the two ends of the top plate 51 via a rotating shaft, thereby realizing the rotatable installation of the telescopic ladder relative to the RV. A plurality of first screw holes 52 are distributed on the top plate 51, which can be fixed to the top or side of the RV via a first bolt. At the same time, a first side rod 412 is vertically fixed in the middle of the first extension rod 41, on which a first disc 413 is installed. The disc is provided with a plurality of second screw holes, which can be fixed to the side of the RV with the help of a second bolt 414; a second side rod 422 is vertically fixed in the middle of the second extension rod 42, and a second disc 423 is installed. A secure connection with the RV is achieved through a third screw hole and a third bolt 424. The multi-directional installation method makes the connection between the telescopic ladder and the RV more secure and reduces shaking during use.

[0024] Limiting assembly 6: A first clamping block 61 and a second clamping block 62 are mounted on the upper ends of the first extension rod 41 and the second extension rod 42, respectively. These are secured to the corresponding extension rods via a fourth bolt 611 and a fifth bolt, respectively. The diameter of the first clamping block 61 is larger than the diameter of the first mounting hole 311, and the diameter of the second clamping block 62 is larger than the diameter of the second mounting hole 312. This effectively limits the range of motion of the movable member 4, preventing it from disengaging from the connector 3 during extension and retraction, ensuring safe use.

[0025] Surface treatment: The entire telescopic ladder surface is sprayed with SL999061TF5 black weather-resistant matte plastic powder to form an anti-UV coating to improve weather resistance and aesthetics.

[0026] Modular design: Each component, such as the connector 3, movable part 4, and mounting component 5, adopts a modular design. Each module is connected through standard interfaces and fasteners, which facilitates assembly, disassembly, and replacement, and facilitates product maintenance and function expansion.

[0027] Among them: multiple first cross plates 31 are connected to the first rod body 1 and the second rod body 2 in sequence according to the spacing requirements to form a connecting member 3; the first extension rod 41 and the second extension rod 42 are respectively inserted into the first mounting hole 311 and the second mounting hole 312 of the lowermost first cross plate 31, and multiple second cross plates 43 are fixed to form a movable part 4; the first support rod 411 and the second support rod 421 are installed at the bottom of the first extension rod 41 and the second extension rod 42; the first clamping block 61 and the second clamping block 62 are fixed to the upper ends of the first extension rod 41 and the second extension rod 42 by the fourth bolt 611 and the fifth bolt respectively to form a limiting assembly 6; the upper ends of the first rod body 1 and the second rod body 2 are rotatably mounted on both ends of the top plate 51 through the rotating shaft to complete the preliminary assembly of the mounting assembly 5; the first side rod 412 is vertically fixed in the middle of the first extension rod 41 and the first disc 413 is installed, and the second side rod 422 is vertically fixed in the middle of the second extension rod 42 and the second disc 423 is installed.

[0028] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and the inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A telescopic ladder for a recreational vehicle, characterized in that: include: A first rod body (1), a second rod body (2), a connecting member (3), a movable member (4), a mounting assembly (5) and a limiting assembly (6); the first rod body (1) and the second rod body (2) are located on a first plane; the connecting member (3) is mounted between the first rod body (1) and the second rod body (2) to fix the first rod body (1) and the second rod body (2); the movable member (4) is movably mounted on the connecting member (3); the mounting assembly (5) is rotatably mounted on the first rod body (1) and the second rod body (2); the first rod body (1) and the second rod body (2) can be connected to a recreational vehicle via the mounting assembly (5); and the limiting assembly (6) is mounted on the movable member (4) to prevent the movable member (4) from being separated from the connecting member (3).

2. The RV telescopic ladder according to claim 1, characterized in that: The mounting assembly (5) includes a top plate (51), the upper ends of the first rod body (1) and the second rod body (2) are rotatably mounted on the two ends of the top plate (51), and the top plate (51) has a plurality of first screw holes (52). A first bolt that can be connected to the RV is installed in any of the first screw holes (52).

3. The RV telescopic ladder according to claim 1, characterized in that: The connecting member (3) comprises a plurality of first transverse plates (31) arranged in parallel at equal intervals, any one of the first transverse plates (31) connects the first rod body (1) and the second rod body (2), and the lengths of the plurality of first transverse plates (31) gradually increase from top to bottom.

4. The RV telescopic ladder according to claim 3, characterized in that: The movable member (4) comprises a first extension rod (41) and a second extension rod (42); a first mounting hole (311) and a second mounting hole (312) are provided on the first transverse plate (31) at the lower end; the first extension rod (41) is mounted on the first mounting hole (311); the second extension rod (42) is mounted on the second mounting hole (312); the first extension rod (41) and the second extension rod (42) are arranged in parallel; and a plurality of second transverse plates (43) arranged in parallel are fixedly mounted between the first extension rod (41) and the second extension rod (42).

5. The RV telescopic ladder according to claim 4, characterized in that: A first support rod (411) and a second support rod (421) are respectively installed at the bottom of the first extension rod (41) and the second extension rod (42), and the first support rod (411) and the second support rod (421) are arranged in parallel.

6. The RV telescopic ladder according to claim 5, characterized in that: A first side rod (412) vertically arranged with respect to the first extension rod (41) is fixedly mounted on the middle portion of the first extension rod (41); a first disc (413) is mounted on the first side rod (412); a plurality of second screw holes are provided on the first disc (413); a second bolt (414) that can be connected to a recreational vehicle is mounted on any of the second screw holes; a second side rod (422) vertically arranged with respect to the second extension rod (42) is fixedly mounted on the middle portion of the second extension rod (42); a second disc (423) is mounted on the second side rod (422); a plurality of third screw holes are provided on the second disc (423); a third bolt (424) that can be connected to a recreational vehicle is mounted on any of the third screw holes.

7. The RV telescopic ladder according to claim 4, characterized in that: The limiting assembly (6) comprises a first clamping block (61) mounted on the upper end of the first extension rod (41) and a second clamping block (62) mounted on the upper end of the second extension rod (42); the first clamping block (61) and the first extension rod (41) are fixed by a fourth bolt (611), and the second clamping block (62) and the second extension rod (42) are fixed by a fifth bolt.

8. The RV telescopic ladder according to claim 7, characterized in that: The diameter of the first clamping block (61) is larger than the aperture of the first mounting hole (311), and the diameter of the second clamping block (62) is larger than the aperture of the second mounting hole (312).

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