Double-hook folding centipede ladder
By designing a double-hook folding centipede ladder, the connection method of folding structure and eccentric handle locking is solved, and the problem of low assembly efficiency and easy to sway or slide is achieved, achieving more efficient assembly and safer use.
Patent Information
- Application Number
- CN202421512103.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-28
- Publication Date
- 2025-04-22
- Estimated Expiration
- 2034-06-28
AI Technical Summary
The existing single-hook centipede ladder has low assembly efficiency and is prone to sway or slide, which poses safety risks.
A double-hook folding centipede ladder is designed, which adopts a folding structure and eccentric handle locking connection method, replacing the traditional bolted connection, increasing the number of hooks for the suspension assembly, and setting the hooks on different sides of the beam to increase friction.
The assembly efficiency of the centipede ladder is improved, the problem of slanting is eliminated, and the centipede ladder is prevented from sliding along the line by increasing friction, enhancing safety.
Smart Images
Figure CN222782591U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of rail transportation equipment, and in particular relates to a double-hook folding centipede ladder. Background Art
[0002] When repairing railway contact network or power lines, it is often necessary to climb to a high place. The single-column ladder carried by the operators is generally divided into 5 to 6 sections, with a stud at one end and a nut at the other end. Figure 1 As shown, when in use, the studs and nuts are butt-jointed and assembled to form a single-column hanging ladder. This assembly method uses bolts for connection, and the number of bolts is large, so it takes a lot of time to assemble, which is time-consuming and labor-intensive, affecting construction efficiency.
[0003] Moreover, the existing centipede ladder is usually equipped with a single hook for easy carrying. During the climbing process, since the centipede ladder has only one contact point with the line, the ladder is prone to swing or slide along the line direction, posing a safety hazard.
[0004] Therefore, it is necessary to provide an improved technical solution to address the above-mentioned deficiencies in the prior art. Summary of the invention
[0005] The utility model aims to provide a double-hook foldable centipede ladder to solve the problems of low assembly efficiency and easy deflection or sliding of the existing single-hook centipede ladder.
[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0007] A double-hook folding centipede ladder comprises a plurality of hanging ladder sections which are rotatably connected in sequence, wherein the adjacent hanging ladder sections are rotatably connected via folding joints, and the folding joints can be locked. When the folding joints are locked, the adjacent hanging ladder sections cannot rotate relative to each other.
[0008] A plurality of pedals are provided on the single section of the hanging ladder, and the pedals are rotatably connected to the single section of the hanging ladder;
[0009] The single section of the hanging ladder located at the head end of the centipede ladder is fixedly connected with a hanging component, and the hanging component has at least two hooks.
[0010] Preferably, an eccentric handle is provided at the rotating shaft of the folding joint, and the eccentric handle is used to lock the folding joint.
[0011] Preferably, the number of pedals on a single section of the hanging ladder is not less than 3.
[0012] Preferably, the suspension assembly includes a crossbeam and two hooks, and the hooks are fixedly connected to both ends of the crossbeam.
[0013] Preferably, the pedals are staggered on a single section of the hanging ladder.
[0014] Preferably, the adjacent pedals are located on different sides of a single section of the hanging ladder.
[0015] Preferably, the hooks are located on different sides of the crossbeam.
[0016] Beneficial effects:
[0017] (1) The centipede ladder provided in the present application adopts a folding structure, and an eccentric handle is provided at the folding joint for locking, so as to replace the existing bolt connection method. When in use, the folding joint only needs to be unfolded, and then the eccentric handle is turned to lock the folding joint, thereby obtaining a centipede ladder of a longer length, thereby improving the assembly efficiency of the centipede ladder;
[0018] (2) The suspension assembly used in the centipede ladder is provided with two hooks, which increases the contact points between the centipede ladder and the power line from one to two, and increases the fulcrum and friction in the axial direction, thereby eliminating the swing problem of the single-hook centipede ladder. In addition, by setting the hooks on different sides of the beam, after the two hooks are hung on the contact network and other lines, the hooks have opposite forces on the lines in the horizontal direction, thereby limiting the swing freedom in the radial direction of the beam, and making the hooks more closely contact with the side of the contact network, thereby increasing the friction between the hooks and the line and preventing the centipede ladder from sliding along the line direction. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] The drawings constituting part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments and descriptions of the present invention are used to explain the present invention and do not constitute an improper limitation on the present invention. Among them:
[0020] Figure 1 It is a structural schematic diagram of an existing centipede ladder.
[0021] Figure 2 This is a front view of the centipede ladder provided in an embodiment of the utility model in a folded state.
[0022] Figure 3 This is a front view of the centipede ladder provided by an embodiment of the utility model in a fully unfolded state.
[0023] Figure 4 for Figure 3 Enlarged view of point A in the middle.
[0024] Figure 5 It is a front view of the suspension assembly in the embodiment of the utility model.
[0025] Figure 6 It is a three-dimensional diagram of the suspension assembly in the embodiment of the utility model.
[0026] Figure 7 for Figure 6 A top view of the suspension assembly is shown.
[0027] In the figure: 100, single section of hanging ladder; 200, folding joint; 300, suspension assembly; 101, pedal; 201, eccentric handle; 301, crossbeam; 302, hook. DETAILED DESCRIPTION
[0028] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the present invention.
[0029] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.
[0030] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.
[0031] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more features.
[0032] In the description of the present utility model, it should be noted that, unless otherwise clearly stipulated and limited, the term "connection" should be understood in a broad sense. For example, it can be a fixed connection or a movable connection, a detachable connection or a non-detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication; it can be a direct connection, or an indirect connection through an intermediate medium, and it can be internal connection between two elements, indirect connection, or an interactive relationship between two elements.
[0033] The present invention will be described in detail below in conjunction with the embodiments. It should be noted that the embodiments and features in the embodiments of the present invention can be combined with each other without conflict.
[0034] The utility model aims to solve the problems of low assembly efficiency and easy deflection or sliding of the current single-hook centipede ladder, and provides a double-hook foldable centipede ladder. Figures 2 to 4 As shown, the centipede ladder includes a plurality of hanging ladder sections 100 which are rotatably connected in sequence. Adjacent hanging ladder sections 100 are rotatably connected via folding joints 200, so that the angles of adjacent hanging ladder sections 100 can be adjusted between 0° and 180°. The folded centipede ladder can be greatly shortened in length for easy carrying.
[0035] The folding joint 200 can be locked. When the folding joint 200 is locked, adjacent single sections 100 of the hanging ladder cannot rotate relative to each other, thereby preventing the folding joint 200 of the centipede ladder from being deformed after being fully unfolded.
[0036] A plurality of (eg, 1, 2, 3, 4) pedals 101 are provided on the single section 100 of the hanging ladder. The pedals 101 are rotatably connected to the single section 100 of the hanging ladder. The pedals 101 can be rotated downward to a horizontal position and then cannot be rotated further, so that the operator can step on them easily.
[0037] The hanging ladder single section 100 located at the head end of the centipede ladder is fixedly connected to a hanging assembly 300 , and the hanging assembly 300 has at least two (eg, two or three) hooks 302 .
[0038] In a preferred embodiment of the present invention, Figures 5 to 7 As shown, the suspension assembly 300 includes a crossbeam 301 and two hooks 302 . The hooks 302 are fixedly connected to both ends of the crossbeam 301 . For example, the hooks 302 are constructed at both ends of the crossbeam 301 by welding or hot bending.
[0039] In a preferred embodiment of the present invention, Figure 4 As shown, an eccentric handle 201 is provided at the rotating shaft of the folding joint 200. After the eccentric handle 201 is rotated, the folding joint 200 can be locked so that the folding joint 200 cannot rotate.
[0040] In a preferred embodiment of the present invention, Figure 3 As shown, the number of pedals 101 on the single section 100 of the hanging ladder is not less than 3, and they are staggered on the single section 100 of the hanging ladder, and adjacent pedals 101 are located on different sides of the single section 100 of the hanging ladder, so that the operator can climb along the pedals 101 easily.
[0041] In a preferred embodiment of the present invention, Figures 5 to 7 As shown, the hooks 302 are located on different sides of the crossbeam 301. At this time, the two hooks 302 can be used to generate horizontal forces in opposite directions on the line, thereby clamping the line.
[0042] When performing maintenance work on a railway overhead line or a power line, the operator fully unfolds the centipede ladder from the folded state, then turns the eccentric handle 201 to lock the unfolded folding joint 200, and turns the pedal 101 to be perpendicular to the single section 100 of the hanging ladder, and then hangs the hook 302 of the hanging assembly 300 on the line, and then uses the centipede ladder to climb to the construction site. After the construction is completed, the centipede ladder is removed and folded and stored as it is, and can be carried around.
[0043] In summary:
[0044] The centipede ladder provided in the present application adopts a folding structure, and an eccentric handle 201 is provided at the folding joint 200 for locking, so as to replace the existing bolt connection method. When in use, the folding joint 200 only needs to be unfolded, and then the eccentric handle 201 is rotated to lock the folding joint 200, thereby obtaining a centipede ladder with a longer length, which improves the assembly efficiency of the centipede ladder, and by arranging the hooks 302 on different sides of the crossbeam 301, after the two hooks 302 are hung on the contact network or other lines, the hooks 302 have opposite forces on the lines in the horizontal direction, thereby increasing the friction between the hooks 302 and the line, preventing the centipede ladder from sliding along the line direction, and solving the problems of low assembly efficiency and easy deflection or sliding of the existing single-hook centipede ladder.
[0045] The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. For those skilled in the art, the utility model may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.
Claims
1. A double-hook foldable centipede ladder, characterized in that: It comprises a plurality of hanging ladder sections which are connected in rotation in sequence, wherein the adjacent hanging ladder sections are connected in rotation by folding joints, and the folding joints can be locked. When the folding joints are locked, the adjacent hanging ladder sections cannot rotate relative to each other; A plurality of pedals are provided on the single section of the hanging ladder, and the pedals are rotatably connected to the single section of the hanging ladder; The single section of the hanging ladder located at the head end of the centipede ladder is fixedly connected with a hanging component, and the hanging component has at least two hooks.
2. A double-hook foldable centipede ladder according to claim 1, characterized in that: An eccentric handle is provided at the rotating shaft of the folding joint, and the eccentric handle is used to lock the folding joint.
3. A double-hook foldable centipede ladder according to claim 1, characterized in that: The number of pedals on a single section of the hanging ladder is not less than 3.
4. A double-hook foldable centipede ladder according to claim 1, characterized in that: The suspension assembly comprises a crossbeam and two hooks, and the hooks are fixedly connected to both ends of the crossbeam.
5. A double-hook foldable centipede ladder according to claim 3, characterized in that: The pedals are arranged in a staggered manner on a single section of the hanging ladder.
6. A double-hook foldable centipede ladder according to claim 3, characterized in that: The adjacent pedals are located on different sides of the single section of the hanging ladder.
7. A double-hook foldable centipede ladder according to claim 4, characterized in that: The hooks are located on different sides of the crossbeam.