Portable anti-toppling foldable ladder

Abstract

The utility model discloses a portable anti-toppling foldable ladder which comprises two rod bodies, a protection assembly is arranged on one side of each rod body, a folding assembly is arranged between the two rod bodies, and the problems that an existing ladder is insufficient in stability and inconvenient to store are effectively solved through mutual matching of the protection assemblies and the folding assemblies. The protection assembly adopts a meshing self-locking structure of a ratchet wheel, a pawl and an extension spring, automatic limiting can be achieved when the ladder is unfolded, the toppling risk caused by external force or operation shaking is prevented, the use safety is remarkably improved, meanwhile, the adjustable design of a first movable plate and a second movable plate is matched with limiting screw holes, the supporting stability is further enhanced, and the safety of the ladder is improved. The folding assembly is connected with the folding plate in a hinged mode through the rotating rod, the ladder is rapidly folded to be in an attached state, the occupied space is greatly reduced, carrying and storage are convenient, unfolding and folding operation is simplified through cooperation of a limiting bolt and an adjusting opening, and it is ensured that the folding process is smooth and the ladder is firm and reliable after being unfolded.

Description

Technical Field

[0001] This utility model relates to the field of ladder technology, specifically to a portable, anti-tipping, foldable ladder. Background Technology

[0002] A ladder is a tool that facilitates people going up and down. It is generally made of two long poles as sides, with several short crossbars running through the middle, such as stairs, cloud ladders (long ladders used for attacking cities or fighting fires), steps (steps and ladders), rope ladders, etc.

[0003] Some existing ladders lack stability. When users are working on ladders, such as installing, repairing, or cleaning at heights, the ladder is prone to tipping over if the movement is too large or if there are external disturbances, such as a slight breeze or uneven ground. This can cause users to fall from a height and suffer personal injury. In addition, most existing ladders are not foldable or have inconvenient folding methods, and they take up a lot of storage space when not in use. Utility Model Content

[0004] In view of the problems in the related technologies, this utility model proposes a portable anti-tipping foldable ladder to overcome the above-mentioned technical problems existing in the existing related technologies.

[0005] Therefore, the specific technical solution adopted by this utility model is as follows:

[0006] A portable, anti-tipping, foldable ladder includes two poles. A protective component is provided on one side of each pole, and a folding component is provided between the two poles. The protective component includes a first rotating protrusion, which is symmetrically fixed on both sides of the pole. A first rotating cylinder is movably connected to the first rotating protrusion, and a first adjusting plate is provided on the first rotating cylinder. A second rotating protrusion is fixed on one side of the first adjusting plate, and a second rotating cylinder is movably connected to the second rotating protrusion. Ratchets are provided on the first and second rotating cylinders, and pawls are engaged with the ratchet wheels. An adjusting handle is provided on the pawls.

[0007] Furthermore, in order to better ensure the limiting effect, a tension spring is provided on one side of the pawl, and the tension spring and the pawl are connected to the rod body and one side of the first adjusting plate through a rotating shaft. A second adjusting plate is provided on the second rotating cylinder, and a storage groove is opened at one end of the first adjusting plate and the second adjusting plate.

[0008] Furthermore, in order to better ensure the adjustment effect, the inside of the storage slot is slidably connected with a first movable plate and a second movable plate. Multiple limiting screw holes are opened on one side of the first movable plate and the second movable plate, and a first fixing bolt is provided on one side of the first adjusting plate and the second adjusting plate.

[0009] Furthermore, in order to better ensure the limiting effect, one end of the first fixing bolt extends into the interior of the storage groove and is threadedly connected to one of the limiting screw holes. One end of the first movable plate and the second movable plate is provided with a movable groove, and one side of the first movable plate and the second movable plate is provided with a connecting hole.

[0010] Furthermore, to better ensure the adjustment effect, a second fixing bolt is provided inside the connecting hole, and a movable seat is provided on the second fixing bolt.

[0011] Furthermore, to better ensure storage performance, the folding assembly includes multiple rotating rods, with a first folding plate and a second folding plate connected to each rotating rod. The first folding plate and the second folding plate are respectively connected to the rod body.

[0012] Furthermore, to better ensure stability, multiple connecting protrusions are provided on one side of the rod. A first limiting plate and a second limiting plate are movably connected to the connecting protrusions. Adjustment ports are provided on the first limiting plate and the second limiting plate, and limiting bolts are provided inside the adjustment ports.

[0013] The beneficial effects of this utility model are as follows: By cooperating with the protective component and the folding component, the problems of insufficient stability and inconvenient storage of existing ladders are effectively solved. The protective component adopts a self-locking structure of ratchet, pawl and tension spring, which can automatically limit the ladder when it is unfolded, preventing the risk of tipping over due to external force or shaking during operation, and significantly improving the safety of use. At the same time, the adjustable design of the first and second movable plates, together with the limiting screw holes, further enhances the support stability and adapts to different working environments. The folding component is connected to the folding plate by a hinge, which enables the ladder to be quickly folded to a closed state, greatly reducing the space occupied and making it easy to carry and store. The cooperation between the limiting bolt and the adjustment port simplifies the unfolding and folding operation, ensuring that the folding process is smooth and the ladder is firm and reliable after unfolding, thereby improving the safety of the ladder. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a structural diagram of the first working state of a portable anti-tipping foldable ladder according to an embodiment of the present utility model;

[0016] Figure 2 This is a structural diagram of the second working state of a portable anti-tipping foldable ladder according to an embodiment of the present utility model;

[0017] Figure 3 This is an exploded view of the protective component structure of a portable anti-tipping foldable ladder according to an embodiment of the present utility model;

[0018] Figure 4 yes Figure 3 Enlarged close-up view of point a in the middle;

[0019] Figure 5 This is a partial structural diagram of the protective component of a portable anti-tipping foldable ladder according to an embodiment of the present utility model;

[0020] Figure 6 This is an exploded view of the folding assembly structure of a portable anti-tipping foldable ladder according to an embodiment of the present utility model;

[0021] Figure 7 This is a partial structure of the folding assembly of a portable, anti-tipping, foldable ladder according to an embodiment of the present invention. Figure 1 ;

[0022] Figure 8 This is a partial structure of the folding assembly of a portable, anti-tipping, foldable ladder according to an embodiment of the present invention. Figure 2 .

[0023] In the picture:

[0024] 1. Rod body; 2. Protective assembly; 201. First rotating protrusion; 202. First rotating cylinder; 203. First adjusting plate; 204. Second rotating protrusion; 205. Second rotating cylinder; 206. Ratchet; 207. Pawl; 208. Tension spring; 209. Second adjusting plate; 210. First movable plate; 211. Second movable plate; 212. First fixing bolt; 213. Second fixing bolt; 214. Movable seat; 3. Folding assembly; 301. Rotating rod; 302. First folding plate; 303. Second folding plate; 304. Connecting protrusion; 305. First limiting plate; 306. Second limiting plate; 307. Limiting bolt; 4. Adjusting handle; 5. Limiting screw hole; 6. Adjusting port. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example

[0026] like Figures 1-8As shown, a portable anti-tipping foldable ladder according to an embodiment of the present utility model includes two poles 1, a protective component 2 is provided on one side of the pole 1, and a folding component 3 is provided between the two poles 1.

[0027] The protective component 2 includes a first rotating protrusion 201, which is symmetrically fixed on both sides of the rod body 1. A first rotating cylinder 202 is movably connected to the first rotating protrusion 201. A first adjusting plate 203 is provided on the first rotating cylinder 202. A second rotating protrusion 204 is fixedly provided on one side of the first adjusting plate 203. A second rotating cylinder 205 is movably connected to the second rotating protrusion 204. A ratchet 206 is provided on the first rotating cylinder 202 and the second rotating cylinder 205. A pawl 207 is engaged with the ratchet 206. An adjusting handle 4 is provided on the pawl 207. A tension spring 208 is provided on one side of the pawl 207. Both the tension spring 208 and the pawl 207 are connected to the rod body 1 and one side of the first adjusting plate 203 via a rotating shaft. The second rotating cylinder 205 is provided with... There is a second adjusting plate 209. One end of the first adjusting plate 203 and the second adjusting plate 209 is provided with a storage groove. The first movable plate 210 and the second movable plate 211 are slidably connected inside the storage groove. Multiple limiting screw holes 5 are provided on one side of the first movable plate 210 and the second movable plate 211. A first fixing bolt 212 is provided on one side of the first adjusting plate 203 and the second adjusting plate 209. One end of the first fixing bolt 212 extends into the inside of the storage groove and is threadedly connected to one of the limiting screw holes 5. One end of the first movable plate 210 and the second movable plate 211 is provided with a movable groove. A connecting hole is provided on one side of the first movable plate 210 and the second movable plate 211. A second fixing bolt 213 is provided inside the connecting hole. A movable seat 214 is provided on the second fixing bolt 213. Example

[0028] like Figures 1-8 As shown, a portable anti-tipping foldable ladder according to an embodiment of the present utility model includes a folding assembly 3 comprising multiple rotating rods 301, with a first folding plate 302 and a second folding plate 303 respectively connected to the rotating rods 301. The first folding plate 302 and the second folding plate 303 are respectively connected to the upper part of the rod body 1. A plurality of connecting protrusions 304 are provided on one side of the rod body 1. A first limiting plate 305 and a second limiting plate 306 are movably connected to the connecting protrusions 304. An adjustment port 6 is provided on the first limiting plate 305 and the second limiting plate 306, and a limiting bolt 307 is provided inside the adjustment port 6.

[0029] To facilitate understanding of the above-mentioned technical solutions of this utility model, the working principle or operation method of this utility model in actual process will be described in detail below.

[0030] In summary, with the help of the above-mentioned technical solution of this utility model, when the ladder needs to be used, the user first tilts the ladder (i.e., 0-45 degrees), and then rotates the first adjusting plate 203 and the second adjusting plate 209 to make the first rotating cylinder 202 and the second rotating cylinder 205 rotate and adjust on the first rotating protrusion 201 and the second rotating protrusion 204, so that the adjustment is V-shaped (as shown in the figure). Figure 1 As shown in the diagram, during the rotation adjustment process, the ratchet 206, pawl 207, and tension spring 208 cooperate to self-lock and limit the rotation of the first rotating cylinder 202 and the second rotating cylinder 205, ensuring the ladder is stable and does not tip over during use. Then, by pulling the first movable plate 210 and the second movable plate 211 inside the first adjusting plate 203 and the second adjusting plate 209, and then connecting the first fixing bolt 212 with the limiting screw hole 5, the adjusted first movable plate 210 and the second movable plate 211 can be limited and fixed. Then, by rotating the adjusting movable seat 214, and then fixing the movable seat 214 with the second fixing bolt 213, the support and fixation effect can be ensured, thereby better ensuring the anti-tipping effect of the ladder and improving the safety of use.

[0031] When the ladder needs to be folded and stored, the first folding plate 302 and the second folding plate 303 form a symmetrical hinge structure through the rotating rod 301. When a folding force is applied, the two plates synchronously retract towards the rod 1 with the rotating rod 301 as the axis. The folding angle can reach 0°, which means that the two plates are completely in contact with the rod 1, thus compressing the overall thickness of the ladder and making it easy to carry. After loosening the limiting bolt 307, the first limiting plate 305 and the second limiting plate 306 can rotate on the connecting protrusion 304, releasing the constraint on the first folding plate 302 and the second folding plate 303, ensuring that there is no resistance interference during the folding process. The limiting plate can be slid to the preset position (such as the optimal support angle when the ladder is unfolded) through the adjustment port 6, and then locked longitudinally by the limiting bolt 307 to prevent the first folding plate 302 and the second folding plate 303 from springing back, ensuring that the ladder is stable and reliable when unfolded. At the same time, the limiting bolt 307 makes the adjustment process simple and quick.

[0032] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A portable anti-tip foldable ladder characterized in that, It includes two rods (1), a protective component (2) is provided on one side of each rod (1), and a folding component (3) is provided between the two rods (1); The protective component (2) includes a first rotating protrusion (201), which is symmetrically fixed on both sides of the rod (1). A first rotating cylinder (202) is movably connected to the first rotating protrusion (201). A first adjusting plate (203) is provided on the first rotating cylinder (202). A second rotating protrusion (204) is fixedly provided on one side of the first adjusting plate (203). A second rotating cylinder (205) is movably connected to the second rotating protrusion (204). A ratchet (206) is provided on the first rotating cylinder (202) and the second rotating cylinder (205). A pawl (207) is engaged on the ratchet (206). An adjusting handle (4) is provided on the pawl (207).

2. The portable anti-collapse foldable ladder of claim 1, wherein, A tension spring (208) is provided on one side of the pawl (207), and the tension spring (208) and the pawl (207) are both connected to one side of the rod (1) and the first adjusting plate (203) through a rotating shaft. A second adjusting plate (209) is provided on the second rotating cylinder (205), and a storage groove is provided at one end of the first adjusting plate (203) and the second adjusting plate (209).

3. The portable anti-collapse foldable ladder of claim 2, wherein, The storage slot is slidably connected to a first movable plate (210) and a second movable plate (211). Multiple limiting screw holes (5) are provided on one side of the first movable plate (210) and the second movable plate (211). A first fixing bolt (212) is provided on one side of the first adjusting plate (203) and the second adjusting plate (209).

4. The portable anti-collapse foldable ladder of claim 3, wherein, One end of the first fixing bolt (212) extends into the interior of the receiving groove and is threadedly connected to one of the limiting screw holes (5). One end of the first movable plate (210) and the second movable plate (211) is provided with a movable groove, and one side of the first movable plate (210) and the second movable plate (211) is provided with a connecting hole.

5. The portable anti-collapse foldable ladder of claim 4, wherein, The connecting hole is provided with a second fixing bolt (213), and the second fixing bolt (213) is provided with a movable seat (214).

6. The portable anti-collapse foldable ladder of claim 1, wherein, The folding assembly (3) includes multiple rotating rods (301), and a first folding plate (302) and a second folding plate (303) are respectively connected to the rotating rods (301). The first folding plate (302) and the second folding plate (303) are respectively connected to the rod body (1).

7. The portable anti-collapse foldable ladder of claim 6, wherein, A plurality of connecting protrusions (304) are provided on one side of the rod (1). A first limiting plate (305) and a second limiting plate (306) are movably connected to the connecting protrusions (304). An adjustment port (6) is provided on the first limiting plate (305) and the second limiting plate (306). A limiting bolt (307) is provided inside the adjustment port (6).

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