Telescopic ladder with folding storage function

Abstract

The utility model discloses an extension ladder capable of being folded for storage, relates to the technical field of extension ladders, and provides the following scheme that the extension ladder comprises a lower ladder assembly, connecting grooves are formed in the two sides of the top of the lower ladder assembly, threaded insertion rods penetrate through the connecting grooves, and an upper ladder assembly is connected to the end of the lower ladder assembly; a rotating groove is formed in the end part of the upper ladder frame, a clamping rod is arranged on one side of the end part of the upper ladder frame, a spring penetrates through the outer side of the clamping rod, and a clamping groove is formed in the end part of the lower ladder frame; by arranging the clamping rods, the whole ladder is adjusted to a proper angle to be directly used as a herringbone ladder, the whole ladder can be directly erected for supporting use, meanwhile, the lower ladder frame and the upper ladder frame can be directly unfolded for use integrally, and the ladder can be folded for storage when not used, so that the occupied space is reduced, and the ladder is convenient to carry; when needed, the threaded insertion rods can be directly detached through threaded connection of the connecting grooves and the threaded insertion rods, and the lower ladder assembly and the upper ladder assembly can be directly detached.

Description

Technical Field

[0001] The utility model relates to the technical field of telescopic ladders, in particular to a telescopic ladder with foldable storage function. Background Art

[0002] Ladder, a daily life tool, is composed of two long and thick poles as sides, with a horizontal bar suitable for climbing running across the middle. It is used for climbing. Ladders are divided into single-lift ladders and herringbone ladders. Ladders that increase their length by extending and adjusting are also called telescopic ladders.

[0003] The existing telescopic ladder is inconvenient to fold and store, has a single function, and is not convenient to adjust to different usage occasions. Therefore, a telescopic ladder with foldable storage is needed. Utility Model Content

[0004] The utility model aims to provide a telescopic ladder with foldable storage function, which solves the problems in the prior art that the foldable ladder is inconvenient to fold and store and the ladder has a single function.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a telescopic ladder with foldable storage, comprising a lower ladder frame, connecting grooves are provided on both sides of the top of the lower ladder frame, a threaded insert rod passes through the interior of the connecting groove, the end of the lower ladder frame is connected to an upper ladder frame, a rotating groove is provided at the end of the upper ladder frame, a clamping rod is provided on one side of the end of the upper ladder frame, a spring passes through the outer side of the clamping rod, a clamping groove is opened at the end of the lower ladder frame, a first telescopic rod is provided at the bottom end of the lower ladder frame, and a second telescopic rod is provided at the top end of the upper ladder frame.

[0006] Preferably, the lower ladder frame forms a detachable structure with the upper ladder frame through the connecting groove, the threaded rod and the rotating groove, and the threaded rod is symmetrically arranged about the central axis of the lower ladder frame.

[0007] Preferably, the upper ladder frame forms a rotating structure with the lower ladder frame through a threaded insert rod.

[0008] Preferably, the clamping rod forms a lifting structure with the upper ladder frame through a spring, and the clamping rod is symmetrically arranged with respect to the central axis of the upper ladder frame.

[0009] Preferably, the upper ladder frame forms a locking structure through a locking rod and a locking slot, and the center line of the locking rod and the center line of the locking slot are arranged to overlap with each other.

[0010] Preferably, the first telescopic rod is threadedly connected to the lower ladder frame, and the second telescopic rod is threadedly connected to the upper ladder frame.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] The lower ladder frame and the upper ladder frame can be directly used as a herringbone ladder by arranging a clamping rod, and the upper ladder frame can be rotated to adjust the angle to a suitable angle through the threaded plug rod, and the lower ladder frame and the upper ladder frame can be directly used as a herringbone ladder for supporting use. At the same time, the lower ladder frame and the upper ladder frame can be directly opened as a whole. When the lower ladder frame and the upper ladder frame are to a certain degree, the clamping rod pulled up is retracted and reset downward by a spring, so that the clamping rod and the clamping slot are mutually engaged and fixed, which can ensure the connection between the lower ladder frame and the upper ladder frame in an opened state, and ensure the stability of the connection during use, and also ensure the convenient opening and closing of the lower ladder frame and the upper ladder frame. When not in use, they can be folded for storage, reducing space occupation and being convenient to carry. When needed, the threaded plug rod can be directly removed through the threaded connection between the connecting groove and the threaded plug rod, so that the lower ladder frame and the upper ladder frame can be directly disassembled, and ladder frames of different lengths and models can also be directly used separately or installed. It is also convenient for the inspection and replacement of parts, with diverse functions and flexible selection for use.

[0013] 2. By setting the telescopic rod, and then manually adjusting the first telescopic rod and the second telescopic rod at the ends of the lower ladder frame and the upper ladder frame, the telescopic length of the first telescopic rod and the second telescopic rod can be adjusted by rotation, so that the overall length of the ladder can be supplemented when needed, which can adapt to the use requirements and be flexibly adjusted to ensure that the ladder body can be used by adjusting the supplementary length through telescopic adjustment. When not in use, the first telescopic rod and the second telescopic rod can be adjusted to shorten and retract, thereby reducing the length for easy collection and storage. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall folding structure of a telescopic ladder capable of folding and storing according to the utility model;

[0015] Figure 2 It is a schematic diagram of the connection structure between the upper ladder frame and the lower ladder frame of a telescopic ladder with foldable storage according to the utility model;

[0016] Figure 3 The utility model is a schematic cross-sectional structure diagram of a clamping rod installation of a telescopic ladder with foldable storage function.

[0017] In the figure: 1, lower ladder frame; 2, connecting groove; 3, threaded plug rod; 4, upper ladder frame; 5, rotating groove; 6, clamping rod; 7, spring; 8, clamping groove; 9, first telescopic rod; 10, second telescopic rod. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] like Figure 1-3 As shown, a telescopic ladder with folding and storage function includes a lower ladder frame 1, which is characterized in that: connecting grooves 2 are provided on both sides of the top of the lower ladder frame 1, and a threaded plug rod 3 is penetrated inside the connecting groove 2, the end of the lower ladder frame 1 is connected to an upper ladder frame 4, and a rotating groove 5 is provided at the end of the upper ladder frame 4, a clamping rod 6 is provided on one side of the end of the upper ladder frame 4, and a spring 7 is penetrated on the outer side of the clamping rod 6, a clamping groove 8 is opened at the end of the lower ladder frame 1, a first telescopic rod 9 is provided at the bottom end of the lower ladder frame 1, and a second telescopic rod 10 is provided at the top end of the upper ladder frame 4.

[0020] The lower ladder frame 1 forms a detachable structure with the upper ladder frame 4 through the connecting groove 2, the threaded rod 3, the rotating groove 5, and the threaded rod 3 is symmetrically arranged about the central axis of the lower ladder frame 1, so that the lower ladder frame 1 and the upper ladder frame 4 can be directly disassembled, and ladder frames of different lengths and models can also be used separately or installed directly, which is also convenient for the inspection and replacement of parts.

[0021] The upper ladder frame 4 forms a rotating structure with the lower ladder frame 1 through the threaded rod 3. The lower ladder frame 1 and the upper ladder frame 4 can be rotated and adjusted to a suitable angle through the threaded rod 3 to be directly used as a herringbone ladder, and the whole can be directly stood up for support use.

[0022] The clamping rod 6 forms a lifting structure with the upper ladder frame 4 through the spring 7, and the clamping rod 6 is symmetrically arranged about the central axis of the upper ladder frame 4, which is convenient to adjust and can be manually pulled, thereby ensuring flexible and convenient connection operation.

[0023] The upper ladder frame 4 forms a locking structure through the locking rod 6 and the locking slot 8, and the center line of the locking rod 6 and the center line of the locking slot 8 are arranged to coincide with each other, so that the locking rod 6 and the locking slot 8 are locked and fixed to each other, which can ensure that the lower ladder frame 1 and the upper ladder frame 4 are connected in an open state and ensure the stability of the connection during use.

[0024] The first telescopic rod 9 is threadedly connected to the lower ladder frame 1, and the second telescopic rod 10 is threadedly connected to the upper ladder frame 4, so that the overall length of the ladder can be supplemented when needed, which can adapt to usage requirements and be flexibly adjusted to ensure that the ladder body can be used by telescopically adjusting the supplemented length.

[0025] When the upper and lower ladder frames 1 are in the state of being lifted up, the upper and lower ladder frames 4 can be directly opened and closed by the spring 7, so that the lower and upper ladder frames 1 can be opened and closed by the spring 7.

[0026] Next, manually adjust the first telescopic rod 9 and the second telescopic rod 10 at the ends of the lower ladder frame 1 and the upper ladder frame 4. By rotating to adjust the telescopic length of the first telescopic rod 9 and the second telescopic rod 10, the overall length of the ladder can be supplemented when needed. It can adapt to usage needs and be flexibly adjusted to ensure that the ladder body can be used by adjusting the supplementary length through telescopic adjustment. When not in use, adjust the first telescopic rod 9 and the second telescopic rod 10 to shorten and retract them to reduce the length for easy retraction and storage.

[0027] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A telescopic ladder capable of folding and storing, comprising a lower ladder frame (1), characterized in that: The top sides of the lower ladder frame (1) are provided with connecting grooves (2), the interior of the connecting groove (2) is penetrated by a threaded rod (3), the end of the lower ladder frame (1) is connected to the upper ladder frame (4), the end of the upper ladder frame (4) is provided with a rotation groove (5), one side of the end of the upper ladder frame (4) is provided with a clamping rod (6), the outer side of the clamping rod (6) is penetrated by a spring (7), the end of the lower ladder frame (1) is provided with a clamping groove (8), the bottom end of the lower ladder frame (1) is provided with a first telescopic rod (9), and the top end of the upper ladder frame (4) is provided with a second telescopic rod (10).

2. A foldable telescopic ladder according to claim 1, characterized in that: The lower ladder frame (1) forms a detachable structure with the upper ladder frame (4) through a connecting groove (2), a threaded rod (3), and a rotating groove (5), and the threaded rod (3) is symmetrically arranged about the central axis of the lower ladder frame (1).

3. The foldable telescopic ladder according to claim 1, characterized in that: The upper ladder frame (4) forms a rotating structure with the lower ladder frame (1) through the threaded insert rod (3).

4. The foldable telescopic ladder according to claim 1, characterized in that: The clamping rod (6) forms a lifting structure with the upper ladder frame (4) through a spring (7), and the clamping rod (6) is symmetrically arranged with respect to the central axis of the upper ladder frame (4).

5. The foldable telescopic ladder according to claim 1, characterized in that: The upper ladder frame (4) forms a clamping structure through a clamping rod (6) and a clamping slot (8), and the center line of the clamping rod (6) and the center line of the clamping slot (8) are arranged to overlap with each other.

6. The foldable telescopic ladder according to claim 1, characterized in that: The first telescopic rod (9) is threadedly connected to the lower ladder frame (1), and the second telescopic rod (10) is threadedly connected to the upper ladder frame (4).

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