Extension ladder with folding support frame

Abstract

The utility model discloses an extension ladder with a folding support frame, and relates to the technical field of extension ladders. The retractable ladder comprises a retractable bin and a retractable ladder assembly arranged in the retractable bin, and further comprises supporting frames connected to the lower end face of the retractable ladder assembly, and connecting rotating shafts are arranged in the supporting frames; the folding and unfolding clamping groove is formed in one side of the supporting frame, a supporting rod body is arranged on the inner side of the folding and unfolding clamping groove, and an adjusting mechanism is arranged on the outer side of the supporting rod body; and the locking mechanism is arranged on the outer side of the supporting frame. The supporting frame can be adjusted by arranging the connecting rotating shaft, the supporting rod body arranged on the inner side of the supporting frame has two adjusting modes, the supporting rod body can rotate at multiple angles through the adjusting shaft body, and the supporting rod body can be pushed out from the inner side of the folding and unfolding clamping groove by sliding the adjusting sliding rod on the inner side of the adjusting sliding groove. And the locking mechanism is matched with the locking mechanism, so that the supporting rod body can be locked and limited, and the supporting rod body can be conveniently inserted into the grassland subsequently.

Description

Technical Field

[0001] This utility model belongs to the field of telescopic ladder technology, and in particular relates to a telescopic ladder with a folding support frame. Background Technology

[0002] A car roof rack is a support frame or component that is installed on the top of the car body to securely and conveniently fix luggage. Roof racks can be used to carry various items, such as luggage, bicycles, skis, kayaks, etc. These items are difficult to store inside the car, but are very convenient to put on the roof rack.

[0003] As living standards continue to improve, more and more people enjoy road trips. However, the interior space of cars is often insufficient to accommodate more items, necessitating the development of roof space. Car roof racks have become increasingly popular. While they utilize a folding ladder structure for loading and unloading items, the ladder can easily slip on grass due to the low friction coefficient of the grass and the fact that the ladder support is typically made of rubber, which is not slip-resistant. This can cause injury during operation and significantly reduce the safety and practicality of the folding ladder. Utility Model Content

[0004] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a telescopic ladder with a folding support frame, which can effectively solve the problems of the existing technology.

[0005] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0006] This utility model relates to a telescopic ladder with a folding support frame, including a storage compartment and a telescopic ladder frame disposed inside the storage compartment, and further comprising:

[0007] The support frame is connected to the lower end of the telescopic ladder frame. The support frame is equipped with a connecting shaft inside, and the connecting shaft is connected to the tail end of the telescopic ladder frame.

[0008] A retractable slot is provided on one side of the support frame. A support rod is provided on the inner side of the retractable slot, and an adjustment mechanism is provided on the outer side of the support rod to pull the support rod out of the support frame.

[0009] The locking mechanism, located on the outside of the support frame, is used to lock and limit the support rod.

[0010] Furthermore, the adjustment mechanism includes an adjustment shaft and a locking groove. The adjustment shaft is connected to the center of the support rod, and both ends of the adjustment shaft are in contact with the inner wall of the locking groove. The locking groove is symmetrically fixed on one side of the support rod and has an arc-shaped structure.

[0011] Furthermore, the adjustment mechanism also includes an adjustment slide groove, an adjustment slide rod, and a second locking slot. The adjustment slide groove is symmetrically opened on the inner side of the release slot. The adjustment slide rod is fixed to the upper end of the support rod and slides up and down along the inside of the adjustment slide groove. The second locking slot is opened on one side of the support rod and is located at the lower end of the adjustment slide rod.

[0012] Furthermore, the locking mechanism includes a locking plate, a pulling member, and a locking rod. The locking plate is slidably engaged with the lower end of one side of the support frame, the pulling member is fixed to one end of the locking plate, and the locking rod is fixed at the center of one side of the locking plate. The locking rod passes through the support frame and is connected to either locking slot one or locking slot two.

[0013] Furthermore, a return spring is sleeved on the outer surface of the locking rod, and the return spring is located inside the support frame.

[0014] This utility model has the following beneficial effects:

[0015] This invention allows for adjustment of the support frame via a connecting pivot. The support rod located inside the support frame has two adjustment methods: it can rotate at multiple angles by adjusting the pivot, and it can also slide within the adjustment groove by adjusting the slide bar, allowing the support rod to be pushed out from the retraction slot. This, in conjunction with the locking mechanism, locks and restricts the support rod, preventing it from shifting. This facilitates the insertion of the support rod into the grass, preventing slippage or shifting of the support frame during climbing, thus ensuring the safety of the telescopic ladder and further expanding the applicability of the equipment. Attached Figure Description

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 This is a top view of the telescopic ladder of this utility model;

[0018] Figure 2 This is a top view of the support frame of this utility model;

[0019] Figure 3 This is a schematic diagram of the cross-section of the support frame of this utility model;

[0020] Figure 4 This is a schematic diagram of the support rod of this utility model;

[0021] Figure 5 This is a schematic diagram of the locking plate of this utility model.

[0022] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0023] 1. Retraction compartment; 2. Telescopic ladder frame; 3. Support frame; 301. Retraction slot; 302. Adjustment slide; 4. Connecting shaft; 5. Support rod; 501. Adjustment shaft; 502. Locking slot one; 503. Adjustment slide; 504. Locking slot two; 6. Locking plate; 601. Pulling component; 602. Locking rod; 603. Return spring. Detailed Implementation

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0025] Example 1

[0026] Please see Figure 1-5 As shown, this utility model is a telescopic ladder with a folding support frame, including a storage compartment 1 and a telescopic ladder frame 2 disposed inside the storage compartment 1, and further including:

[0027] The support frame 3 is connected to the lower end of the telescopic ladder frame 2. The support frame 3 is equipped with a connecting shaft 4 inside, and the connecting shaft 4 is connected to the tail end of the telescopic ladder frame 2. The telescopic ladder frame 2 can be folded, which makes it convenient to place items later. The connecting shaft 4 can adjust the angle of the support frame 3.

[0028] The slot 301 is provided on one side of the support frame 3. The inner side of the slot 301 is provided with a support rod 5, and the outer side of the support rod 5 is provided with an adjustment mechanism for adjusting the support rod 5 out of the support frame 3.

[0029] A locking mechanism is provided on the outside of the support frame 3 to lock and limit the support rod 5;

[0030] The adjustment mechanism includes an adjustment shaft 501 and a locking slot 502. The adjustment shaft 501 is connected to the center of the support rod 5, and both ends of the adjustment shaft 501 are in contact with the inner wall of the retraction slot 301. The locking slot 502 is symmetrically fixed on one side of the support rod 5 and has an arc-shaped structure. The retraction slot 301 allows the support rod 5 to be retracted or extended, while the adjustment shaft 501 allows the support rod 5 to rotate at multiple angles, thus enabling the support rod 5 to be retracted into the retraction slot 301 and then removed. The locking slot 502 facilitates subsequent connection with a locking mechanism, thereby locking and limiting the support rod 5.

[0031] The locking mechanism includes a locking plate 6, a pulling member 601, and a locking rod 602. The locking plate 6 is slidably engaged with the lower end of one side of the support frame 3. The pulling member 601 is fixed to one end of the locking plate 6, and the locking rod 602 is fixed to the center of one side of the locking plate 6. The locking rod 602 passes through the support frame 3 and is connected to the locking slot 502. The locking plate 6 can be pulled outward by the pulling member 601. When the support rod 5 is rotated to the designated position, the pulling member 601 can be released. A return spring 603 is sleeved on the outer surface of the locking rod 602 and is located inside the support frame 3. When the pulling member 601 is released, the return spring 603 can reset the pulling member 601. The locking rod 602 can then be engaged inside the locking slot 502 to lock and limit the position of the support rod 5.

[0032] Example 2

[0033] The adjustment mechanism also includes an adjustment slide 302, an adjustment slide rod 503, and a second locking slot 504. The adjustment slide 302 is symmetrically arranged inside the take-up and release slot 301. The adjustment slide rod 503 is fixed to the upper end of the support rod 5 and slides up and down along the inside of the adjustment slide 302. The second locking slot 504 is located on one side of the support rod 5 and at the lower end of the adjustment slide rod 503. The adjustment slide rods 503 on both sides of the support rod 5 can slide up and down along the inside of the adjustment slide 302, thereby allowing the support rod 5 to slide up and down out of the take-up and release slot 301. Then, the locking mechanism includes a locking plate 6, a pulling member 601, and a locking rod 602. The locking plate 6 is slidably engaged with the support rod 502. At the lower end of one side of the support frame 3, the pulling member 601 is fixed to one end of the locking plate 6, and the locking rod 602 is fixed to the center of one side of the locking plate 6. The locking rod 602 passes through the support frame 3 and is connected to the second locking slot 504. The locking plate 6 can be pulled outward by the pulling member 601. When the support rod 5 is rotated to the designated position, the pulling member 601 can be released. The outer surface of the locking rod 602 is fitted with a return spring 603, and the return spring 603 is located inside the support frame 3. When the pulling member 601 is released, the return spring 603 can reset the pulling member 601. The locking rod 602 can then be locked and limited inside the second locking slot 504 to lock and limit the position of the support rod 5.

[0034] The above are merely preferred embodiments of the present utility model and do not limit the present utility model. Any modifications, equivalent substitutions, or improvements made to the technical solutions described in the foregoing embodiments, or to some of the technical features, shall fall within the protection scope of the present utility model.

Claims

1. A telescopic ladder with a folding support frame, comprising a storage compartment (1) and a telescopic ladder frame (2) disposed inside the storage compartment (1), characterized in that, Also includes: The support frame (3) is connected to the lower end face of the telescopic ladder frame (2). The support frame (3) is equipped with a connecting shaft (4) inside, and the connecting shaft (4) is connected to the tail end of the telescopic ladder frame (2). A slot (301) is provided on one side of the support frame (3). A support rod (5) is provided on the inner side of the slot (301). An adjustment mechanism is provided on the outer side of the support rod (5) for adjusting the support rod (5) out of the support frame (3). The locking mechanism is located on the outside of the support frame (3) and is used to lock and limit the support rod (5).

2. A telescopic ladder with a folding support frame according to claim 1, characterized in that, The adjustment mechanism includes an adjustment shaft (501) and a locking slot (502). The adjustment shaft (501) is connected to the center of the support rod (5), and both ends of the adjustment shaft (501) are in contact with the inner wall of the take-up and release slot (301). The locking slot (502) is symmetrically fixed on one side of the support rod (5), and the locking slot (502) has an arc-shaped structure.

3. A telescopic ladder with a folding support frame according to claim 2, characterized in that, The adjustment mechanism also includes an adjustment slide (302), an adjustment slide rod (503), and a second locking slot (504). The adjustment slide (302) is symmetrically opened on the inner side of the receiving and releasing slot (301). The adjustment slide rod (503) is fixed to the upper end of the support rod (5) and slides up and down along the inside of the adjustment slide (302). The second locking slot (504) is opened on one side of the support rod (5) and is located at the lower end of the adjustment slide rod (503).

4. A telescopic ladder with a folding support frame according to claim 3, characterized in that, The locking mechanism includes a locking plate (6), a pulling member (601), and a locking rod (602). The locking plate (6) is slidably engaged with the lower end of one side of the support frame (3). The pulling member (601) is fixed to one end of the locking plate (6). The locking rod (602) is fixed at the center of one side of the locking plate (6). The locking rod (602) passes through the support frame (3) and is connected to the locking slot one (502) or the locking slot two (504).

5. A telescopic ladder with a folding support frame according to claim 4, characterized in that, A return spring (603) is sleeved on the outer surface of the locking rod (602), and the return spring (603) is located inside the support frame (3).

Images