Landscape street lamp crawling ladder assembly convenient to maintain

Abstract

The utility model belongs to the technical field of maintenance of landscape street lamps, particularly relates to a ladder stand assembly convenient to maintain for a landscape street lamp, and provides the following scheme aiming at the problems of potential safety hazards such as unstable locking, easiness in sliding and insufficient stability in the use process of an existing height-adjustable ladder stand: the ladder stand assembly comprises two extension ladders, the two extension ladders are respectively composed of a plurality of ladder sections which are connected in a sliding mode, each ladder section comprises two ladder pipes, the ladder stand is provided with a plurality of unique locking assemblies, not only can the height of the ladder stand be conveniently adjusted and locked, but also the ladder sections can be unlocked by a single hand when the ladder stand is folded, the ladder stand is convenient to fold, and the ladder stand is convenient to use. Meanwhile, the stability of the ladder stand can be enhanced after the ladder stand is unfolded, the ladder stand is prevented from toppling over, the safety of workers is guaranteed, rubber blocks and moving wheels can prevent the workers from being accidentally injured when the ladder stand is folded, and the ladder stand is convenient to carry and move.

Description

Technical Field

[0001] The utility model relates to the technical field of landscape street lamp maintenance, in particular to a ladder assembly for landscape street lamps which is convenient for maintenance. Background Art

[0002] Landscape street lights refer to street lights that provide lighting services for public landscape areas such as parks, squares, pedestrian streets, etc. Landscape street lights not only facilitate citizens' travel at night, but also enhance the beauty of the city's nightscape and become the "highlight" of the city at night. During the maintenance of landscape street lights, ladders are often needed to assist staff in reaching a certain height for maintenance or inspection work.

[0003] Most traditional ladders have a fixed structure and cannot be adjusted in height, making them inconvenient for workers to carry. Although some ladders with adjustable heights solve the problem of fixed height and easy portability, they often have safety hazards such as loose locking, easy sliding, and insufficient stability during use. Therefore, we propose a ladder assembly for landscape street lights that is easy to maintain to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art of height-adjustable ladders, such as loose locking, easy sliding, and insufficient stability, which are safety hazards during use, and to propose a ladder assembly for landscape street lights that is easy to maintain.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A ladder assembly for landscape street lights that is easy to maintain, comprising two telescopic ladders, each of which is composed of a plurality of slidably connected ladder sections, wherein the ladder sections include two ladder tubes, the two ladder tubes are arranged in parallel, and the two ladder tubes are fixedly connected to the same pedal, two first connecting blocks are symmetrically provided on the top of one telescopic ladder, and two second connecting blocks are symmetrically provided on the top of the other telescopic ladder, the two first connecting blocks are respectively hinged to the corresponding second connecting blocks, and the two ladder tubes at the bottom of the two telescopic ladders are fixedly connected to the same cross brace, and the ladder assembly further comprises:

[0007] A plurality of locking assemblies, each of which is arranged in pairs on corresponding pedals, for locking the telescopic ladder when it is extended;

[0008] Multiple stabilizing components are arranged on the corresponding ladder tubes at the bottom to enhance the stability of the ladder after it is unfolded.

[0009] In one possible design, the locking assembly includes a sliding rod, a sliding groove connected to the outer wall of the ladder tube is opened inside the pedal, the sliding rod is located in the sliding groove and is slidably connected to the sliding groove, and a clamping block is fixedly connected to one end of the sliding rod close to the ladder tube, and multiple ladder tubes are provided with multiple slots corresponding to the clamping block, the clamping block is clamped in the slot, and a slider is slidably connected to one side of the pedal, and one end of the slider extends to the inside of the sliding groove and is fixedly connected to the sliding rod.

[0010] In a possible design, the outer wall of the sliding rod is located inside the sliding groove and is fixedly sleeved with a limiting ring. The limiting ring is slidably connected to the sliding groove. A spring is sleeved inside the sliding groove on the sliding rod. The two ends of the spring respectively conflict with the side of the limiting ring away from the ladder pipe and the inner wall of one side of the sliding groove.

[0011] In a possible design, the stabilizing component includes a rotating rod, which is rotatably connected to the outer wall of the corresponding ladder tube. One end of the rotating rod is rotatably connected to a limiting rod. A limiting block is fixedly provided on the outer wall of the ladder tube above the rotating rod. Two limiting holes corresponding to the limiting blocks are provided on the limiting rod, and the limiting blocks are inserted into the corresponding limiting holes.

[0012] In a possible design, two sliding grooves are symmetrically provided at the bottom of the cross brace, and extension rods are slidably connected to the inside of the two sliding grooves. The ends of the two extension rods that are away from each other respectively pass through the corresponding ladder pipes and are slidably connected to the ladder pipes. The outer walls of the two ladder pipes are threaded with bolts, and one end of the two bolts conflicts with the corresponding extension rods.

[0013] In a possible design, a rubber block is fixedly provided at the bottom of the ladder tube at the footboard to prevent workers from being accidentally injured when the ladder is folded up.

[0014] In a possible design, a movable wheel is fixedly connected to one side of one of the cross braces to facilitate carrying of the ladder.

[0015] In a possible design, hooks are provided on the sides of the two second connecting blocks that are away from each other.

[0016] In the present application, firstly, both telescopic ladders are composed of a plurality of ladder sections connected in a sliding manner. By adjusting the sliding connection between the ladder sections, the total height of the ladder can be conveniently adjusted. When the ladder needs to be extended, each ladder section only needs to be slid outward to the desired position. After the ladder is extended, multiple locking assemblies are used to lock it. Specifically, the locking assembly includes a slide bar, a card block and a card slot. When the ladder is extended, the slide bar in the slide slot moves under the elastic force of the spring, driving the card block at one end of the slide bar to insert into the card slot on the corresponding ladder tube and engage with the card slot, thereby realizing the locking function. At this time, the extended part of the ladder is firmly locked in the corresponding position to prevent it from sliding back into the ladder tube.

[0017] Multiple stabilizing components can enhance the stability of the ladder after it is unfolded. Specifically, the stabilizing components include a rotating rod, a limiting rod, and a limiting block. When the ladder is unfolded, the limiting rod is rotated so that the limiting rod, the rotating rod, and the ladder tube form a triangular structure. At the same time, the limiting block is inserted into the limiting hole of the corresponding limiting rod to stabilize the triangular structure. The formed triangular structure widens the width of the ladder and prevents the ladder from tipping over.

[0018] In order to further improve the stability of the ladder, you can also use the extension rod and bolts at the bottom of the cross brace to extend it. By adjusting the sliding position of the extension rod in the slide groove and tightening the bolts to fix it, you can easily increase the width of the ladder, thereby improving its stability.

[0019] Rubber blocks are set at the bottom of the ladder tube at the pedals to prevent workers from being pinched between two adjacent pedals when the ladder is folded, which increases safety in use. Moving wheels are set on one of the cross braces to facilitate the movement and carrying of the ladder, improving convenience in use.

[0020] Beneficial effects:

[0021] In the utility model, the ladder assembly for landscape street lights that is easy to maintain is provided with a retractable telescopic ladder and multiple unique locking assemblies. Not only can the height of the ladder be conveniently adjusted and locked, but the ladder sections can also be unlocked with one hand when folded, making it easy to fold the ladder.

[0022] In the utility model, the ladder assembly for landscape street lights that is easy to maintain can enhance the stability of the ladder after it is unfolded by providing multiple stabilizing components, thereby preventing the ladder from tipping over and further ensuring the safety of the workers.

[0023] In the utility model, the ladder assembly for landscape street lights that is easy to maintain is provided with rubber blocks and movable wheels, which not only prevents workers from being accidentally injured when the ladder is folded up, thereby increasing the safety of use, but also facilitates the carrying and movement of the ladder, thereby improving the convenience of use.

[0024] In the utility model, by providing a plurality of unique locking components, not only can the height of the ladder be easily adjusted and locked, but the ladder sections can also be unlocked with one hand when folding, which facilitates the folding of the ladder. At the same time, a plurality of stabilizing components can enhance the stability of the ladder after it is unfolded, prevent the ladder from tipping over, and ensure the safety of the staff. The rubber blocks and movable wheels can not only prevent the staff from being accidentally injured when the ladder is folded, but also facilitate the carrying and movement of the ladder. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a three-dimensional structural diagram of a ladder assembly for landscape street lights that is easy to maintain, as proposed by the utility model;

[0026] Figure 2 This is a partial three-dimensional structural diagram of a ladder assembly for landscape street lights that is easy to maintain, as proposed by the present invention;

[0027] Figure 3 This is another partial three-dimensional structural diagram of a ladder assembly for landscape street lights that is easy to maintain, as proposed by the present invention;

[0028] Figure 4 This is a schematic diagram of the three-dimensional structure of the horizontal support rod of the ladder assembly for landscape street lights that is easy to maintain, as proposed by the utility model;

[0029] Figure 5 This is a schematic diagram of a three-dimensional cross-sectional structure of a ladder assembly for a landscape street light that is easy to maintain, as proposed by the present invention;

[0030] Figure 6 This is a schematic diagram of the three-dimensional structure of the sliding rod of a ladder assembly for landscape street lights that is easy to maintain, proposed by the utility model;

[0031] Figure 7 This is a schematic diagram of the three-dimensional structure of the ladder sections of a ladder assembly for a landscape street light that is easy to maintain, as proposed by the utility model.

[0032] In the figure: 1. telescopic ladder; 2. first connecting block; 3. second connecting block; 4. pedal; 5. cross brace; 6. extension rod; 7. moving wheel; 8. rubber block; 9. slide bar; 10. clamping block; 11. limiting ring; 12. spring; 13. rotating rod; 14. limiting rod; 15. limiting block; 16. bolt; 17. hook; 18. slot. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0034] Example 1: Reference Figure 1-7 A ladder comprises two telescopic ladders 1, each comprised of multiple slidingly connected ladder sections. Each ladder section comprises two parallel ladder tubes, each of which is fixedly connected to a common step 4. Two first connecting blocks 2 are symmetrically disposed on the top of one of the telescopic ladders 1, while two second connecting blocks 3 are symmetrically disposed on the top of the other telescopic ladder 1. The two first connecting blocks 2 are hingedly connected to the corresponding second connecting blocks 3 to enable the two telescopic ladders 1 to be folded and unfolded. A common cross brace 5 is fixedly connected to the two lowest ladder tubes of the two telescopic ladders 1 to enhance the ladder's stability.

[0035] The ladder assembly also includes a plurality of locking assemblies and a plurality of stabilizing assemblies. The locking assemblies are arranged in groups of two on the corresponding pedals 4, and are used to lock the telescopic ladder 1 when it is extended. Specifically, the locking assembly includes a slide bar 9, and a slide groove connected to the outer wall of the ladder tube is provided inside the pedal 4. The slide bar 9 is located in the slide groove and is slidably connected to the slide groove. A clamping block 10 is fixedly connected to one end of the slide bar 9 close to the ladder tube. A plurality of slots 18 corresponding to the clamping block 10 are provided on the plurality of ladder tubes, and the clamping block 10 is clamped with the slot 18 to lock the length of the telescopic ladder 1. A slider is slidably connected to one side of the pedal 4, and one end of the slider extends to the inside of the slide groove and is fixedly connected to the slide bar 9, so that the staff can operate the locking assembly conveniently.

[0036] A retaining ring 11 is fixedly mounted on the outer wall of the slide rod 9, located within the chute. This retaining ring 11 is slidably connected to the chute. A spring 12 is sleeved on the slide rod 9, located within the chute. The ends of the spring 12 respectively contact the side of the retaining ring 11 facing away from the ladder tube and the inner wall of the chute. The elastic force of the spring 12 resets the slide rod 9, preventing the locking block 10 from being disengaged from the locking slot 18, thus enhancing safety.

[0037] A stabilization assembly is mounted on the corresponding, lowest ladder tube to enhance the ladder's stability when deployed. Specifically, it includes a rotating rod 13, which is pivotally connected to the outer wall of the corresponding ladder tube. One end of the rotating rod 13 is pivotally connected to a limit rod 14. A limit block 15 is fixedly mounted on the outer wall of the ladder tube, above the rotating rod 13. Limit rod 14 has two retaining holes corresponding to the retaining blocks 15. The retaining blocks 15 fit into the corresponding retaining holes, forming a stable triangular structure that enhances the ladder's stability.

[0038] The ladder tube is located at the bottom of the pedal 4 and is fixed with a rubber block 8. The rubber block 8 allows a gap to be left between two adjacent pedals 4 when the ladder is folded, preventing the two pedals 4 from pinching the workers and improving safety.

[0039] This application can be used in the field of landscape street lamp maintenance technology, and can also be used in other fields applicable to this application.

[0040] Example 2: Reference Figure 1-5 Based on the first embodiment, an improvement is provided: a ladder assembly for landscape street lights that facilitates maintenance, which is applied to the field of landscape street light maintenance technology. Two symmetrical chutes are formed at the bottom of the cross brace 5. Extension rods 6 are slidably connected to the interiors of both chutes. The ends of the two extension rods 6, which are spaced apart from each other, extend through corresponding ladder tubes and are slidably connected to the ladder tubes. Bolts 16 are threadedly connected to the outer walls of the two ladder tubes, and one end of each bolt 16 contacts the corresponding extension rod 6. By adjusting the length of the extension rods 6 and securing them with the bolts 16, the width of the ladder can be further increased, thereby improving stability. When not in use, the extension rods 6 can be folded up for easy carrying.

[0041] One side of one of the cross braces 5 is fixedly connected to a moving wheel 7, which facilitates the carrying and movement of the ladder and improves work efficiency.

[0042] A hook 17 is provided on each side of the two second connecting blocks 3 away from each other, so as to facilitate hanging tools or other items for use by staff.

[0043] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A ladder assembly for landscape street lights that is easy to maintain, comprising two telescopic ladders (1), both of which are composed of a plurality of ladder sections connected in a sliding manner, wherein: The ladder section comprises two ladder tubes, which are arranged in parallel. The two ladder tubes are penetrated and fixedly connected with a same pedal (4). Two first connecting blocks (2) are symmetrically arranged on the top of one telescopic ladder (1), and two second connecting blocks (3) are symmetrically arranged on the top of the other telescopic ladder (1). The two first connecting blocks (2) are respectively hinged with the corresponding second connecting blocks (3). The two ladder tubes at the bottom of the two telescopic ladders (1) are fixedly connected with a same cross brace (5). The ladder assembly further comprises: A plurality of locking assemblies, each of which is arranged in groups of two on corresponding pedals (4) and is used to lock the telescopic ladder (1) when it is extended; Multiple stabilizing components are arranged on the corresponding ladder tubes at the bottom to enhance the stability of the ladder after it is unfolded.

2. The ladder assembly for landscape street lamps that is easy to maintain according to claim 1, characterized in that: The locking assembly includes a slide rod (9), a slide groove communicating with the outer wall of the ladder tube is provided inside the pedal (4), the slide rod (9) is located in the slide groove and is slidably connected to the slide groove, a clamping block (10) is fixedly connected to one end of the slide rod (9) close to the ladder tube, and a plurality of clamping grooves (18) corresponding to the clamping block (10) are provided on a plurality of ladder tubes, and the clamping block (10) is clamped with the clamping groove (18), and a slider is slidably connected to one side of the pedal (4), and one end of the slider extends to the inside of the slide groove and is fixedly connected to the slide rod (9).

3. The ladder assembly for landscape street lamps that is easy to maintain according to claim 2, characterized in that: The outer wall of the slide rod (9) is located inside the slide groove and is fixedly sleeved with a limiting ring (11). The limiting ring (11) is slidably connected to the slide groove. A spring (12) is sleeved on the slide rod (9) and located inside the slide groove. The two ends of the spring (12) respectively contact the side of the limiting ring (11) away from the ladder pipe and the inner wall of one side of the slide groove.

4. The ladder assembly for landscape street lamps that is easy to maintain according to claim 1, characterized in that: The stabilizing assembly comprises a rotating rod (13), the rotating rod (13) being rotatably connected to the outer wall of the corresponding ladder tube, one end of the rotating rod (13) being rotatably connected to a limiting rod (14), a limiting block (15) being fixedly provided on the outer wall of the ladder tube above the rotating rod (13), two limiting holes corresponding to the limiting blocks (15) being provided on the limiting rod (14), and the limiting blocks (15) being inserted into the corresponding limiting holes.

5. The ladder assembly for landscape street lamps that is easy to maintain according to claim 4, characterized in that: Two chute grooves are symmetrically provided at the bottom of the cross brace (5), and the interiors of the two chute grooves are slidably connected with extension rods (6), and the ends of the two extension rods (6) that are away from each other respectively penetrate the corresponding ladder pipes and are slidably connected to the ladder pipes. The outer walls of the two ladder pipes are threadedly connected with bolts (16), and one end of the two bolts (16) conflicts with the corresponding extension rods (6).

6. The ladder assembly for landscape street lamps that is easy to maintain according to claim 1, characterized in that: The ladder tube is located at the bottom of the pedal (4) and is fixedly provided with a rubber block (8) to prevent workers from being accidentally injured when the ladder is folded up.

7. The ladder assembly for landscape street lamps that is easy to maintain according to claim 1, characterized in that: One side of one of the cross braces (5) is fixedly connected with a moving wheel (7), which facilitates the carrying of the ladder.

8. The ladder assembly for landscape street lamps that is easy to maintain according to claim 1, characterized in that: A hook (17) is provided on each side of the two second connecting blocks (3) that are away from each other.

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