Folding ladder stand

Abstract

The utility model relates to the technical field of folding ladders, in particular to a folding ladder stand, which is provided with an outer protection base, the outer protection base comprises a base main body and a grounding plate, in a storage state, the outer protection base can play a role in storing and protecting an extension ladder, and the extension ladder main body is prevented from being deformed due to external extrusion and being difficult to unfold. When the telescopic ladder is used, the base body and the grounding plate serve as a base for supporting the telescopic ladder, compared with the mode that the telescopic ladder body makes direct contact with the ground, the base body can stably play a role in supporting the telescopic ladder body, and the phenomenon of slipping is avoided. And the anti-falling limiting plate covers the end part of the outer protection base again, so that the limiting effect of the end part of the extension ladder main body is achieved again, and the problem that the extension ladder main body is accidentally unfolded during storage and transportation is avoided.

Description

Technical Field

[0001] This utility model relates to the field of folding ladder technology, specifically to a folding ladder. Background Technology

[0002] Folding ladders can be easily folded, reducing the space they occupy and making them easy to store. They are especially suitable for the working environment of construction sites, as they are easy to carry and use. Due to their foldability, folding ladders are easy to carry and move, making them suitable for scenarios where the work area needs to be moved.

[0003] Currently, common folding ladders are of two types: stretching type and push type. Both types of folding ladders are unfolded by locking and fixing at each level and folded in a step-by-step manner. This type of folding method is prone to rigid deformation due to external impact during storage, which can lead to problems in subsequent unfolding. Therefore, a folding ladder is proposed. Utility Model Content

[0004] In order to solve the technical problems existing in the prior art, the present invention provides a folding ladder.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a folding ladder, including an outer protective base, a telescopic ladder installed inside the outer protective base via a connecting shaft, an auxiliary limiting rod for limiting the telescopic ladder installed on the inner side of the outer protective base, an anti-detachment component provided at the end of the outer protective base, the anti-detachment component including an anti-detachment limiting plate provided at the end of the outer protective base, a linkage bolt connected to the end of the outer protective base, a limiting bolt threaded to the outside of the linkage bolt and for squeezing and limiting the anti-detachment limiting plate, a linkage rod provided at the end of the anti-detachment limiting plate, and a reset spring connected between the linkage rod and the linkage bolt.

[0006] Preferably, the outer protective base includes a base body and a grounding plate, and the grounding plate is provided in two sets, with the two sets of grounding plates located at the bottom ends of the base body respectively.

[0007] Preferably, the outer protective base further includes an anti-slip pad, which is formed on the bottom surface of the base plate and has a semi-circular design.

[0008] Preferably, the telescopic ladder includes a telescopic ladder body and steps. The telescopic ladder body is provided in several groups, and the several groups of telescopic ladder bodies with different specifications are connected by a hierarchical nesting method. The number of steps is the same as the number of telescopic ladder bodies, and the steps are arranged between the telescopic ladder bodies.

[0009] Preferably, the auxiliary limiting rod includes a first auxiliary rod and a second auxiliary rod, which are respectively disposed at both ends inside the base body. The first auxiliary rod and the second auxiliary rod cooperate with the base body to form a space for limiting the telescopic ladder.

[0010] Preferably, the surface of the first auxiliary rod is provided with an arc-shaped groove that cooperates with the main body of the telescopic ladder, and the position of the arc-shaped groove corresponds to the position of the main body of the telescopic ladder.

[0011] Preferably, the end of the anti-detachment limiting plate is provided with a sliding groove, and the linkage bolt is disposed in the sliding groove, the diameter of the linkage bolt being the same as the width of the sliding groove.

[0012] Preferably, the anti-detachment component further includes a limiting sleeve, the opening position of which corresponds to the setting position of the telescopic ladder body.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. The present invention provides an outer protective base including a base body and a grounding plate. In the storage state, the outer protective base can play a role in storing and protecting the telescopic ladder, preventing the telescopic ladder body from being deformed by external pressure and becoming difficult to unfold.

[0015] 2. In this utility model, the base body and the grounding plate serve as the base for supporting the telescopic ladder during use. Compared with the telescopic ladder body directly touching the ground, the base body can stably support the telescopic ladder body and prevent slippage.

[0016] 3. This utility model also includes an anti-detachment component. Under the action of the reset spring, the anti-detachment limiting plate re-covers the end of the outer protective base, thereby once again limiting the end of the telescopic ladder body and preventing the telescopic ladder body from accidentally unfolding during storage and transportation. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ;

[0018] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 ;

[0019] Figure 3 This is a three-dimensional structural diagram of the unfolded state of this utility model;

[0020] Figure 4 For the present utility model Figure 3 Enlarged structural diagram at point A in the middle;

[0021] Figure 5This is a schematic diagram of the structure of this utility model from a bottom view.

[0022] The numbers in the diagram represent:

[0023] 1. External protective base; 11. Base body; 12. Grounding plate; 13. Anti-slip mat; 2. Telescopic ladder; 21. Telescopic ladder body; 22. Step; 3. Auxiliary limit rod; 31. First auxiliary rod; 32. Second auxiliary rod; 4. Anti-detachment component; 41. Anti-detachment limit plate; 42. Linkage bolt; 43. Limit bolt; 44. Linkage rod; 45. Reset spring; 46. Limit sleeve. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments, highlighting the above and other technical features and advantages of the present invention. However, the following embodiments are merely preferred embodiments of the present invention and are not exhaustive.

[0025] Example:

[0026] like Figures 1-5 As shown, this utility model provides a folding ladder, including an outer protective base 1, a telescopic ladder 2 installed inside the outer protective base 1 via a connecting shaft, an auxiliary limiting rod 3 for limiting the telescopic ladder 2 installed on the inner side of the outer protective base 1, and an anti-detachment component 4 provided at the end of the outer protective base 1.

[0027] The outer protective base 1 includes a base body 11 and a grounding plate 12;

[0028] There are two sets of base plates 12, which are located at the bottom ends of the base body 11. In the storage state, the outer protective base 1 can protect the telescopic ladder 2 and prevent the telescopic ladder body 21 from being deformed by external pressure and difficult to unfold. When in use, the base body 11 and the base plates 12 serve as the base to support the telescopic ladder 2. Compared with the telescopic ladder body 21 directly touching the ground, the base body 11 can stably support the telescopic ladder body 21 and prevent slippage.

[0029] The outer protective base 1 also includes an anti-slip pad 13, which is formed on the bottom surface of the grounding plate 12. The anti-slip pad 13 has a semi-circular design and can improve the grounding friction, thereby giving the base body 11 higher grounding stability.

[0030] The telescopic ladder 2 includes a telescopic ladder body 21 and a step 22;

[0031] The telescopic ladder body 21 is provided in several groups. The groups of telescopic ladder bodies 21 with different specifications are connected by a nested manner. The number of steps 22 is the same as the number of telescopic ladder bodies 21. The steps 22 are arranged between the telescopic ladder bodies 21. In use, the telescopic ladder body 21 is pulled out from the inside of the outer protective base 1 by pulling the entire telescopic ladder body 21. Pushing the telescopic ladder body 21 makes it rotate around the outer protective base 1. When the telescopic ladder body 21 contacts the auxiliary limit rod 3, the telescopic ladder body 21 reaches the maximum rotation angle. Pulling out the telescopic ladder body 21 step by step and locking each group of telescopic ladder bodies 21 will finally form a climbing ladder.

[0032] The auxiliary limiting rod 3 includes a first auxiliary rod 31 and a second auxiliary rod 32;

[0033] The first auxiliary rod 31 and the second auxiliary rod 32 are respectively installed at both ends inside the base body 11. The first auxiliary rod 31 and the second auxiliary rod 32 work together with the base body 11 to form a space that limits the telescopic ladder 2. The first auxiliary rod 31 is fixed inside the base body 11 by a threaded connection. The fixed position of the first auxiliary rod 31 is adjustable, so that the first auxiliary rod 31 can effectively support the bottom of the telescopic ladder body 21 at different tilt angles. Compared with the telescopic ladder body 21 being supported only by the external protective base 1, the telescopic ladder body 21 has higher installation stability.

[0034] The surface of the first auxiliary rod 31 is provided with an arc-shaped groove that cooperates with the telescopic ladder body 21. The position of the arc-shaped groove corresponds to the setting position of the telescopic ladder body 21. When the telescopic ladder body 21 is tilted, the outer wall of the telescopic ladder body 21 will be inserted into the arc-shaped groove. The first auxiliary rod 31 can increase the contact surface with the telescopic ladder body 21 through the arc-shaped groove, thereby avoiding the problem of bending and damage to the telescopic ladder body 21 due to excessive local pressure.

[0035] The anti-detachment component 4 includes an anti-detachment limiting plate 41 disposed at the end of the outer protective base 1, a linkage bolt 42 connected to the end of the outer protective base 1, a limiting bolt 43 threaded to the outside of the linkage bolt 42 and for pressing and limiting the anti-detachment limiting plate 41, a linkage rod 44 disposed at the end of the anti-detachment limiting plate 41, and a reset spring 45 connected between the linkage rod 44 and the linkage bolt 42. A groove is provided at the end of the anti-detachment limiting plate 41, and the linkage bolt 42 is disposed within the groove. The diameter of the linkage bolt 42 is the same as the width of the groove. Before unfolding the telescopic ladder body 21, the anti-detachment limiting plate 41 is moved laterally by pulling it. During this lateral movement, the groove at the end of the anti-detachment limiting plate 41 engages with the linkage bolt 42. The anti-detachment limiting plate 41 is always kept in contact, so that it is always restricted by the linkage bolt 42 during the lateral movement, preventing the anti-detachment limiting plate 41 from completely detaching from the end of the outer protective base 1. During the lateral movement of the anti-detachment limiting plate 41, the anti-detachment limiting plate 41 pushes the reset spring 45 through the linkage rod 44, causing the reset spring 45 to deform and store force. After the lateral movement, the anti-detachment limiting plate 41 can rotate around the linkage bolt 42, thereby releasing the restriction on the telescopic ladder body 21. When the telescopic ladder body 21 is retracted, the tension on the anti-detachment limiting plate 41 is released, and the reset spring 45 deforms and resets. Driven by the reset spring 45, the anti-detachment limiting plate 41 covers the end of the outer protective base 1 again, thus once again playing the role of limiting the end of the telescopic ladder body 21.

[0036] The anti-detachment component 4 also includes a limiting sleeve 46. The opening position of the limiting sleeve 46 corresponds to the setting position of the telescopic ladder body 21. The limiting sleeve 46 can be sleeved on the end of the telescopic ladder body 21 under the action of the anti-detachment limiting plate 41, thereby playing a limiting role on the end of the telescopic ladder body 21. This prevents the telescopic ladder body 21 from being non-actively unfolded due to tilting or other conditions when it is stored, thus avoiding the problem of the telescopic ladder body 21 being damaged by pressure bending when it is not actively unfolded, and better protecting the telescopic ladder body 21.

[0037] The above description is merely a preferred embodiment of the present utility model and is illustrative rather than restrictive. Those skilled in the art will understand that many changes, modifications, and even equivalents can be made within the spirit and scope defined by the claims of the present utility model, all of which will fall within the protection scope of the present utility model.

Claims

1. A folding ladder, characterized in that, The device includes an outer protective base, inside which a telescopic ladder is installed via a connecting shaft. An auxiliary limiting rod for restricting the telescopic ladder is installed on the inner side of the outer protective base. An anti-detachment component is provided at the end of the outer protective base. The anti-detachment component includes an anti-detachment limiting plate at the end of the outer protective base, a linkage bolt connected to the end of the outer protective base, a limiting bolt threaded to the outside of the linkage bolt and for squeezing and limiting the anti-detachment limiting plate, a linkage rod at the end of the anti-detachment limiting plate, and a reset spring connecting the linkage rod and the linkage bolt.

2. A folding ladder as described in claim 1, characterized in that, The outer protective base includes a base body and a grounding plate. The grounding plate is provided in two sets, which are located at the two ends of the bottom of the base body, respectively.

3. A folding ladder as described in claim 2, characterized in that, The outer protective base also includes an anti-slip pad, which is formed on the bottom surface of the base plate and has a semi-circular design.

4. A folding ladder as described in claim 2, characterized in that, The telescopic ladder includes a telescopic ladder body and steps. The telescopic ladder body is provided in several groups, and the several groups of telescopic ladder bodies with different specifications are connected in a nested manner. The number of steps is the same as the number of telescopic ladder bodies, and the steps are arranged between the telescopic ladder bodies.

5. A folding ladder as described in claim 4, characterized in that, The auxiliary limiting rod includes a first auxiliary rod and a second auxiliary rod. The first auxiliary rod and the second auxiliary rod are respectively disposed at both ends inside the base body. The first auxiliary rod and the second auxiliary rod cooperate with the base body to form a space for limiting the telescopic ladder.

6. A folding ladder as described in claim 5, characterized in that, The surface of the first auxiliary rod is provided with an arc-shaped groove that mates with the main body of the telescopic ladder, and the position of the arc-shaped groove corresponds to the position of the main body of the telescopic ladder.

7. A folding ladder as described in claim 5, characterized in that, The anti-detachment limiting plate has a sliding groove at its end, and the linkage bolt is set in the sliding groove. The diameter of the linkage bolt is the same as the width of the sliding groove.

8. A folding ladder as described in claim 7, characterized in that, The anti-detachment component also includes a limiting sleeve, the opening position of which corresponds to the setting position of the telescopic ladder body.

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