Foldable ladder stand
Through the design of a foldable ladder, the cooperation of a fixed seat, a pivot structure, a slider assembly and a locking assembly solves the problem of easy falls when climbing a ladder, achieves stable locking and effortless climbing, and enhances safety and space utilization efficiency.
Patent Information
- Application Number
- CN202422658363.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-31
- Publication Date
- 2025-09-16
- Estimated Expiration
- 2034-10-31
AI Technical Summary
Existing ladders are easy to be bumped into and fall over, causing accidental damage to personnel and equipment, and they take up space and are inconvenient for cleaning or other uses.
A foldable ladder is designed, which is connected to the pivot structure through a fixed seat, combined with a slider assembly and a locking assembly to achieve foldable fixation and stable locking of the ladder. It is equipped with a power-assisting assembly to provide an effort-saving climbing function, and the height of the ladder can be adjusted through height-adjustable support feet.
It effectively prevents ladder falls and injuries, increases service life, enhances safety, saves space, facilitates cleaning and other uses, and provides labor-saving climbing functions.
Smart Images
Figure CN223343938U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of mechanical equipment, in particular to a foldable ladder. Background Art
[0002] Currently, some mechanical factories or large equipment require ladders to facilitate access for workers. These ladders typically consist of a ladder frame with several steps mounted on it. Ladders are often leaning against walls or the exterior of equipment, making them vulnerable to being knocked over by passersby or other unforeseen circumstances. This can cause the ladder to fall and hit nearby personnel or equipment, potentially causing damage. Summary of the Invention
[0003] The purpose of the present utility model is to solve the above-mentioned problems existing in the prior art and to provide a foldable ladder, which can be folded and fixed to a specific position by a fixing seat, so as to prevent the ladder from accidentally falling due to collision and causing accidental damage to surrounding people or equipment. Furthermore, the ladder body can be tilted labor-savingly for climbing or the ladder body can be made to fit and overlap the fixing seat by a power-assisting component; furthermore, when the ladder body is folded and fits the fixing seat by means of height-adjustable supporting feet, the lower end of the ladder body is suspended in the air, which is beneficial for freeing up ground space in the folded state, making the ground space convenient for cleaning or other uses; or enabling the ladder body to be supported on the ground for climbing.
[0004] The above technical objectives of the present invention are mainly solved by the following technical solutions: a foldable ladder, comprising a ladder body, characterized in that it also includes a fixing seat, wherein a pivot structure is provided between the fixing seat and the upper portion of the ladder body, wherein the pivot structure enables the upper end of the ladder body to be pivotally connected to the fixing seat, so that the lower end of the ladder body is moved outward with its upper end as the pivot point and tilted from bottom to top toward the fixing seat for climbing, or the lower end of the ladder body is moved toward the fixing seat and overlapped to achieve the purpose of folding. This technical solution can fold and fix the ladder in a specific position through the fixing seat, which is beneficial to prevent the ladder from accidentally falling due to collision and causing accidental damage to surrounding personnel or equipment.
[0005] As a further improvement and supplement to the above technical solution, the present invention adopts the following technical measures: a slider assembly and a locking assembly are arranged on the fixed seat from top to bottom, the pivot structure is arranged on the slider assembly, the lower part of the ladder body cooperates with the locking assembly, and when the ladder body is lifted upward, the lower part of the ladder body separates from the locking assembly, which is used to allow the lower end of the ladder body to move away from the fixed seat to form an inclined position for climbing, and when the ladder body is reset downward, the locking assembly locks the lower part of the ladder body so that the ladder body can be reliably superimposed on the fixed seat. The cooperation of the slider assembly and the locking assembly is used to lock the ladder body, so that the ladder body is stably fixed to the fixed seat, preventing the lower end of the ladder body from shaking, which is beneficial to improving the service life of the product and also beneficial to preventing the shaking ladder body from causing damage to surrounding personnel or other objects and equipment; or it is used to unlock the ladder body, facilitating the lower end of the ladder body to move outward to form an inclined state for climbing.
[0006] Preferably, the fixing base is further provided with a power assist assembly, the power assist end of which is connected to the slider assembly, and the fixed end of which is fixed to the fixing base. The power assist assembly is used to provide power assist when lifting the ladder body upward, and to automatically move the ladder body downward in the folded position to cooperate with the locking assembly. The power assist assembly facilitates the relevant personnel to effortlessly unlock, tilt the ladder body for climbing, or make the ladder body fit and lock to the fixing base for folding.
[0007] Preferably, the ladder body includes a ladder frame and a plurality of step plates mounted on the ladder frame, wherein an upper step plate is connected to the pivot structure, and another lower step plate engages with a locking assembly on the fixed base. The pivot structure, also known as an articulated structure, hinges the upper end of the ladder body to the fixed base, maintaining a fixed relative position. This also helps improve the stability of the ladder body during climbing and enhances the safety of the climber.
[0008] Preferably, the slider assembly on the fixed seat includes guide rails arranged vertically above and below, a slider that cooperates with the guide rails, and the pivot structure is fixed to the slider. When the ladder body is lifted, the ladder body moves upward along the slider assembly to unlock the locking assembly, allowing the lower end of the ladder body to move outward (i.e., away from the fixed seat) to tilt the ladder body for climbing. When folding the ladder body, the ladder body is first advanced, the ladder body moves upward along the slider assembly, and the lower end of the ladder body is simultaneously overlapped onto the fixed seat. The ladder body is then lowered, and the locking assembly locks the ladder body.
[0009] Preferably, the pivot structure includes a connecting seat and a folding hinge seat, the connecting seat is detachably connected to the slider through a connecting piece, the folding hinge seat is foldably hinged to the connecting seat through a pivot, and the corresponding step plate is detachably fixed to the folding hinge seat through a connecting piece.
[0010] Preferably, the locking assembly includes a locking seat and a hook portion disposed on the locking seat. The locking seat is fixed to the fixing seat, and the hook portion is used to hook onto the corresponding step plate, thereby allowing the ladder body to be superimposed on the fixing seat. In this technical solution, the hook portion has an upward-facing opening. When the lower end of the ladder body is superimposed on the fixing seat and the ladder body is lowered, the corresponding portion of the step plate engages with the hook portion to form a hooked fit.
[0011] Preferably, the assist end of the assist assembly on the fixed seat is connected to the connecting seat on the pivot structure, and the fixed end of the assist assembly is fixed to the fixed seat or to the locking seat on the locking assembly. The assist assembly has one movable end and one fixed end, which is conducive to providing assistance to the ladder body when it moves up or down.
[0012] Preferably, the power-assisting component is a piston or an air spring, the power-assisting end of the power-assisting component is the outer end of the piston rod, and a limiting structure is also provided on the fixed seat. The limiting structure cooperates with the connecting seat on the pivot structure to limit the downward movement of the connecting seat, which is beneficial to protecting the power-assisting component and preventing the piston rod from hitting the bottom of the piston cylinder.
[0013] Preferably, height-adjustable support feet are provided at the lower end of the ladder frame for adjusting the height of the ladder frame, so that the height-adjustable support feet can support the ground when the ladder frame is used for climbing, or so that ground space is freed when the ladder frame is folded. The height-adjustable support feet allow the lower end of the ladder body to be suspended when the ladder body is folded against the mounting base, thereby freeing ground space in the folded state for easy cleaning or other uses, or allowing the ladder body to be supported on the ground for climbing.
[0014] The utility model has the following beneficial effects: 1. The ladder can be folded and fixed at a specific position through the fixing seat, which is beneficial to prevent the ladder from accidentally falling due to collision and causing accidental damage to surrounding personnel or equipment. 2. The ladder body can be tilted labor-savingly for climbing or the ladder body can be made to fit the fixing seat and overlap. 3. The cooperation of the slider assembly and the locking assembly is used to lock the ladder body so that the ladder body is stably fixed on the fixing seat to prevent the lower end of the ladder body from shaking, which is beneficial to improving the service life of the product and also helps to prevent the shaking ladder body from causing damage to surrounding personnel or other objects and equipment; or it can be used to unlock the ladder body to facilitate the lower end of the ladder body to move outward to form an inclined state for climbing. 4. Through the height-adjustable support feet, when the ladder body is folded and fits the fixing seat, the lower end of the ladder body is suspended in the air, which is beneficial to free up ground space in the folded state, making the ground space convenient for cleaning or other uses; or it can enable the ladder body to be supported on the ground for climbing. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a schematic cross-sectional view of the utility model in a folded (or stacked) state.
[0016] Figure 2 yes Figure 1 A structural schematic diagram of the second perspective.
[0017] Figure 3 yes Figure 1 A structural diagram of the third perspective.
[0018] Figure 4 It is a structural schematic diagram of the ladder body of the present invention in an inclined state for climbing.
[0019] Figure 5 The utility model is a structural schematic diagram in which the ladder body is hidden.
[0020] In the figure: 1. Fixed seat; 2. Ladder frame; 3. Step plate; 4. Guide rail; 5. Slider; 6. Connecting seat; 7. Folding hinge seat; 8. Locking seat; 9. Hooking part; 10. Power assist assembly; 11. Piston rod; 12. Limiting structure; 13. Height-adjustable support foot. DETAILED DESCRIPTION
[0021] The technical solution of the present invention will be further specifically described below with reference to embodiments and in conjunction with the accompanying drawings.
[0022] Example: Figure 1-Figure 5As shown, a foldable ladder includes a ladder body, characterized by also including a fixing base 1. A pivot structure is provided between the fixing base 1 and the upper portion of the ladder body. The pivot structure enables the upper end of the ladder body to be pivotally connected to the fixing base 1, so that the lower end of the ladder body can be moved outward with its upper end as the pivot point and tilted from bottom to top toward the fixing base 1 for climbing, or the lower end of the ladder body can be moved toward the fixing base 1 and overlapped to achieve the purpose of folding. This technical solution can fold and fix the ladder in a specific position through the fixing base 1, which is beneficial to prevent the ladder from being accidentally hit and falling, causing accidental damage to surrounding personnel or equipment.
[0023] Then further supplement the above technical solution to make it more perfect:
[0024] A slider 5 assembly and a locking assembly are arranged on the fixing seat 1 from top to bottom. The pivot structure is arranged on the slider 5 assembly, and the lower part of the ladder body cooperates with the locking assembly.
[0025] In actual application, when the ladder body is lifted upward, the lower portion of the ladder body is separated from the locking assembly, so that the lower end of the ladder body can move away from the fixing seat 1 to form an inclined position for climbing.
[0026] In actual application, when the ladder body is reset downward, the locking assembly locks the lower portion of the ladder body, so that the ladder body can be reliably overlapped with the fixing seat 1.
[0027] In actual application, in order to prevent the lower end of the ladder body from shaking, it is beneficial to improve the service life of the product, and it is also beneficial to prevent the shaking ladder body from causing damage to surrounding personnel or other objects and equipment; or it is used to unlock the ladder body, making it convenient for the lower end of the ladder body to move outward, forming an inclined state for climbing, and the cooperation of the slider 5 assembly and the locking assembly is used to lock the ladder body, so that the ladder body is stably fixed on the fixed seat 1.
[0028] In actual use, the fixing base 1 is further provided with a power assist assembly 10. The power assist end of the power assist assembly 10 is connected to the slider 5 assembly, and the fixed end of the power assist assembly 10 is fixed to the fixing base 1. The power assist assembly 10 is used to provide power when lifting the ladder body upward and to automatically move the ladder body downward in the folded position to cooperate with the locking assembly. The power assist assembly 10 facilitates relevant personnel to unlock and tilt the ladder body for climbing, or to fit and lock the ladder body to the fixing base 1 for folding.
[0029] In actual application, the ladder body includes a ladder frame 2, a plurality of step plates 3 arranged on the ladder frame 2, the upper step plate 3 is connected to the pivot structure, and the lower step plate 3 cooperates with the locking assembly on the fixed seat 1.
[0030] In this article, the pivot structure can also be called an articulated structure, which enables the upper end of the ladder body to be hinged to a fixed surface and keep the relative position fixed, which is also beneficial to improving the stability of the ladder body when used for climbing and improving the safety of climbers.
[0031] In actual application, the pivot structure is connected to the uppermost step plate 3. The hook portion 9 on the locking assembly is hooked with the lowermost step plate 3.
[0032] In actual application, the slider 5 assembly on the fixing seat 1 includes guide rails 4 vertically arranged up and down, a slider 5 matched with the guide rails 4 , and the pivot structure is fixed on the slider 5 .
[0033] In actual application, when the ladder body is lifted, the ladder body moves up along the slider 5 assembly to unlock the locking assembly, so that the lower end of the ladder body can move outward (i.e., away from the fixing seat 1) to tilt the ladder body for climbing.
[0034] In actual application, when folding the ladder body, first advance the ladder body, move the ladder body up along the slider 5 assembly, and at the same time overlap the lower end of the ladder body on the fixed seat 1, then put down the ladder body, and the locking assembly locks the ladder body.
[0035] In actual application, the pivot structure includes a connecting seat 6 and a folding hinge seat 7. The connecting seat 6 is detachably connected to the slider 5 through a connecting piece, and the folding hinge seat 7 is foldably hinged to the connecting seat 6 through a pivot. The corresponding step plate 3 is detachably fixed to the folding hinge seat 7 through a connecting piece.
[0036] In actual application, the locking assembly includes a locking seat 8 and a hooking portion 9 arranged on the locking seat 8. The locking seat 8 is fixed on the fixing seat 1. The hooking portion 9 is used to hook the corresponding step plate 3 so that the ladder body is overlapped on the fixing seat 1.
[0037] In this technical solution, the buckle opening of the hook portion 9 faces upward. When the lower end of the ladder body is overlapped on the fixing seat 1 and the ladder body is lowered, the corresponding part of the step plate 3 is buckled into the hook portion 9 to form a hook fit.
[0038] In practical applications, in order to facilitate production, processing and assembly, the hook portion 9 and the locking seat 8 are an integrated structure.
[0039] In actual application, in order to facilitate the upward or downward reset of the ladder body, the assisting end of the assisting assembly 10 on the fixed seat 1 is connected to the connecting seat 6 on the pivot structure, and the fixed end of the assisting assembly 10 is fixed on the fixed seat 1, or fixed on the locking seat 8 on the locking assembly.
[0040] In actual application, the power-assisting component 10 is a piston or an air spring, and the power-assisting end of the power-assisting component 10 is the outer end of the piston rod 11. A limiting structure 12 is also provided on the fixed seat 1. The limiting structure 12 cooperates with the connecting seat 6 on the pivot structure to limit the downward movement of the connecting seat 6, which is beneficial to protecting the power-assisting component 10 and preventing the piston rod 11 from hitting the bottom of the piston cylinder.
[0041] In actual application, when the pivot structure moves downward and touches the limiting structure 12 , the pivot structure stops moving downward, thereby achieving the purpose of protecting the power assist assembly 10 .
[0042] In actual application, a height-adjustable support foot 13 is provided at the lower end of the ladder frame 2, which is used to adjust the height of the ladder frame 2 so that the height-adjustable support foot 13 can be supported on the ground when the ladder frame 2 is used for climbing, or to leave ground space when the ladder frame 2 is in a folded state.
[0043] By means of the height-adjustable support legs 13, when the ladder body is folded and fitted against the fixing base 1, the lower end of the ladder body is suspended in the air, which is beneficial for freeing up ground space in the folded state, making the ground space convenient for cleaning or other uses; or enabling the ladder body to be supported on the ground for climbing.
[0044] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Various modifications and variations are possible in the above embodiments. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.
Claims
1. A foldable ladder, comprising a ladder body, characterized in that The ladder also includes a fixing seat (1), wherein a pivot structure is provided between the fixing seat (1) and the upper portion of the ladder body, wherein the pivot structure enables the upper end of the ladder body to be pivotally connected to the fixing seat (1), so that the lower end of the ladder body is moved outward with its upper end as a pivot point and then tilted from bottom to top toward the fixing seat (1) for climbing, or the lower end of the ladder body is moved toward the fixing seat (1) and folded to achieve the purpose of folding.
2. The foldable ladder according to claim 1, characterized in that A slider (5) assembly and a locking assembly are arranged on the fixing seat (1) from top to bottom. The pivot structure is arranged on the slider (5) assembly. The lower part of the ladder body cooperates with the locking assembly. When the ladder body is lifted upward, the lower part of the ladder body is separated from the locking assembly, so that the lower end of the ladder body can move away from the fixing seat (1) to form an inclined position for climbing. When the ladder body is reset downward, the locking assembly locks the lower part of the ladder body, so that the ladder body can be reliably superimposed on the fixing seat (1).
3. The foldable ladder according to claim 2, characterized in that The fixing seat (1) is further provided with a power assist assembly (10), the power assist end of the power assist assembly (10) being connected to the slider (5) assembly, and the fixed end of the power assist assembly (10) being fixed to the fixing seat (1). The power assist assembly (10) is used to provide power assist when lifting the ladder body upwards and to enable the ladder body to automatically move downwards in a folded position to cooperate with the locking assembly.
4. The foldable ladder according to any one of claims 1 to 3, characterized in that The ladder body comprises a ladder frame (2), a plurality of step plates (3) arranged on the ladder frame (2), an upper step plate (3) being connected to the pivot structure, and another lower step plate (3) cooperating with a locking assembly on the fixing seat (1).
5. The foldable ladder according to claim 4, characterized in that The slider (5) assembly on the fixed seat (1) comprises guide rails (4) vertically arranged above and below, a slider (5) matched with the guide rails (4), and the pivot structure is fixed on the slider (5).
6. The foldable ladder according to claim 5, characterized in that The pivot structure comprises a connecting seat (6) and a folding hinge seat (7); the connecting seat (6) is detachably connected to the slider (5) via a connecting piece; the folding hinge seat (7) is foldably hinged to the connecting seat (6) via a pivot; and the corresponding step plate (3) is detachably fixed to the folding hinge seat (7) via a connecting piece.
7. The foldable ladder according to claim 4, characterized in that The locking assembly comprises a locking seat (8) and a hooking portion (9) arranged on the locking seat (8); the locking seat (8) is fixed on the fixing seat (1); the hooking portion (9) is used to hook the corresponding step plate (3) so that the ladder body is superimposed on the fixing seat (1).
8. The foldable ladder according to claim 4, characterized in that The assist end of the assist assembly (10) on the fixed seat (1) is connected to the connecting seat (6) on the pivot structure, and the fixed end of the assist assembly (10) is fixed to the fixed seat (1) or to the locking seat (8) on the locking assembly.
9. The foldable ladder according to claim 8, characterized in that The power assist component (10) is a piston or an air spring. The power assist end of the power assist component (10) is the outer end of the piston rod (11). A limiting structure (12) is also provided on the fixed seat (1). The limiting structure (12) cooperates with the connecting seat (6) on the pivot structure to limit the downward movement of the connecting seat (6).
10. The foldable ladder according to claim 4, characterized in that A height-adjustable support foot (13) is provided at the lower end of the ladder frame (2) for adjusting the height of the ladder frame (2) so that the height-adjustable support foot (13) can be supported on the ground when the ladder frame (2) is used for climbing, or so that ground space is left when the ladder frame (2) is in a folded state.