Detachable herringbone ladder

By introducing a base ladder and a disassembly mechanism into the detachable A-frame ladder, the problems of non-adjustable ladder length and insufficient stability are solved, achieving adjustable ladder height and stable support, thus ensuring safety and convenience of use.

CN224079045UActive Publication Date: 2026-04-03孟祥立
View PDF 1 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-24
Publication Date
2026-04-03

AI Technical Summary

Technical Problem

Existing detachable A-frame ladders cannot change the length of the ladder and lack a stable base, resulting in unstable use.

Method used

A detachable A-frame ladder, comprising a base ladder and a disassembly mechanism, is designed. The ladder height is adjustable through a series assembly and a hinge assembly, and stable support is provided by the base assembly. Magnetic plates and pins are used to ensure a secure connection.

Benefits of technology

It enables flexible adjustment of ladder height and stability on uneven ground, avoiding slippage and disengagement accidents, and improving safety and convenience of use.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224079045U_ABST
    Figure CN224079045U_ABST
Patent Text Reader

Abstract

The utility model discloses a detachable herringbone ladder, and relates to the technical field of herringbone ladders, the detachable herringbone ladder comprises a base ladder and a dismounting mechanism, the dismounting mechanism is arranged on the upper side of the ladder, the dismounting mechanism comprises series connection assemblies arranged on the upper side and the lower side of the ladder, and hinge assemblies are installed on the upper sides of the series connection assemblies. When the herringbone ladder is used, the lower inserting block is inserted into the inserting groove, so that the base assembly supports the herringbone ladder, the illuminating lamp can be erected at a proper position in the absence of light, and after the lower inserting block is inserted into the inserting groove, the clamping block needs to be clamped into the clamping hole, so that the base assembly can be stably mounted at the bottom of the herringbone ladder; the lower rotating shaft support can rotate around the rotating shaft block so as to adapt to the grounds with different angles, the anti-skid edges are used so as to ensure that the herringbone ladder can be kept stable and prevented from sliding on the unstable ground, when the herringbone ladder is stored, the lower inserting block is pulled out, and the base assembly can be taken down, so that the herringbone ladder is convenient to install and stable in structure.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of A-frame ladder technology, and in particular to a detachable A-frame ladder. Background Technology

[0002] A detachable A-frame ladder is a type of ladder designed for easy carrying and storage. It typically consists of two independent sections, each of which can be used individually or in combination. The sections are connected by hinges or other mechanical devices, allowing the ladder to be easily folded or unfolded. This design not only improves the ladder's portability but also saves storage space.

[0003] A search revealed that patent number "CN207538772U" states that "this utility model belongs to the field of self-supporting ladders, specifically disclosing a detachable A-frame ladder, including two ladder bodies, a first connecting rod, and a second connecting rod; the first and second connecting rods are respectively hinged to the two ladder bodies, each ladder body includes a tread, two uprights, and multiple crossbars, the tread being fixedly connected to the upper ends of the two uprights; it also includes multiple connecting parts, with multiple first through holes on one side of the two uprights, and second through holes at both ends of the crossbars, the connecting parts passing through the first through holes respectively." The ladder has a first connecting rod and a second through hole, which are detachably connected. One end of the first connecting rod is detachably connected to the side of one of the ladder bodies, and the other end of the first connecting rod is hinged to one end of the second connecting rod. The other end of the second connecting rod is detachably connected to the other ladder body. This A-frame ladder is easy to disassemble and transport. However, in use, because it is a single section of ladder and the length cannot be changed, it has a fixed height. Furthermore, due to the lack of stable feet, it is unstable when placed.

[0004] To address these issues, we offer a detachable A-frame ladder. Utility Model Content

[0005] This application provides a detachable A-frame ladder, which solves the problems of the ladder length not being adjustable and the lack of a stable base.

[0006] This application provides a detachable A-frame ladder, including a base ladder and a disassembly mechanism, wherein the disassembly mechanism is provided on the upper side of the ladder;

[0007] Preferably, the disassembly and assembly mechanism includes a series assembly disposed on the upper and lower sides of the ladder, and a hinge assembly is installed on the upper side of the series assembly.

[0008] Preferably, the series assembly includes an upper insertion block disposed on the upper side of the ladder, the upper insertion block having a through hole inside, a slot being provided on the inner side of the bottom of the ladder, a side pivot support welded to the outer bottom end of the ladder, a hinge piece being installed on the inner side of the side pivot support, a magnetic suction piece being installed on the upper side of the hinge piece, and a locking block being installed on the lower side of the hinge piece.

[0009] Preferably, the upper insert and the slot are of similar size, and the side pivot support and the hinge are movably connected.

[0010] Preferably, the hinge assembly includes an upper plate installed inside the upper insert block, a hinge rod installed inside the upper plate, a pin hole opened at the right end of the hinge rod, and a pin installed inside the pin hole.

[0011] Preferably, the dimensions of the hinged insert rod and the through hole are similar, the upper insert block and the upper plate are movably connected, and the upper plate and the hinged insert rod are movably connected.

[0012] Preferably, a base assembly is installed on the inner side of the slot. The base assembly includes a lower insertion block installed on the inner side of the slot. A locking hole is opened on the inner side of the lower insertion block. A rotating shaft block is fixedly installed on the lower side of the lower insertion block. A lower rotating shaft support is installed on the outer side of the rotating shaft block. A lighting lamp is installed on the left side of the lower rotating shaft support. A base plate is fixedly installed on the lower side of the lower rotating shaft support. An anti-slip ridge is welded on the lower side of the base plate.

[0013] Preferably, the card hole and the card block are of the same size, and the rotating shaft block and the lower rotating shaft support are movably connected.

[0014] As can be seen from the above technical solution, this application provides a detachable A-frame ladder. In use, firstly, insert the upper plug of the lower series assembly into the slot of the upper series assembly, insert the locking block into the through hole, and hinge the two sets of ladders together through the upper plate with the hinge rod. Insert the pin into the pin hole, insert the lower plug into the slot, and then insert the locking block into the locking hole. Open the A-frame ladder to a suitable erection angle. This completes the use process of the detachable A-frame ladder.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. With the base assembly, when using the A-frame ladder, insert the lower block into the slot to provide support for the ladder. The lighting can be set up in low-light conditions. After inserting the lower block into the slot, the locking block needs to be engaged in the locking hole to ensure that the base assembly is stably installed at the bottom of the A-frame ladder. The lower pivot support can rotate around the pivot block to adapt to different ground angles. Anti-slip ridges are used to ensure stability on uneven ground and prevent slippage. When storing the A-frame ladder, simply pull out the lower block to remove the base assembly. It is easy to install and has a stable structure.

[0017] 2. Through the assembly and disassembly mechanism, when using the A-frame ladder, the hinged rod connects the two sets of ladders together via the upper plate. The pin prevents the hinged rod from coming loose and causing the A-frame ladder to fall apart. The upper plug can rotate around the hinged rod to facilitate opening the A-frame ladder to a suitable installation angle. Inserting the upper plug of the lower-level series assembly into the slot of the upper-level series assembly allows for the assembly of the A-frame ladder to the appropriate height as needed. After connecting the series assemblies, rotating the hinge plate engages the locking block in the through hole, ensuring stable installation between sections and effectively preventing falls caused by sudden ladder detachment.

[0018] In summary, this application allows the height of the ladder to be adjusted as needed, reducing the risk of slippage due to the lack of a stable base. Attached Figure Description

[0019] To more clearly illustrate the technical solution of this application, the accompanying drawings used in the implementation examples will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained from these drawings without any creative effort.

[0020] Figure 1 This is a schematic diagram of the overall appearance structure proposed in this utility model;

[0021] Figure 2 This is a schematic diagram of the series component structure proposed in this utility model;

[0022] Figure 3 This is a schematic diagram of the hinge assembly structure proposed in this utility model;

[0023] Figure 4 This is a schematic diagram of the base assembly structure proposed in this utility model.

[0024] In the diagram: 1. Ladder; 2. Assembly / disassembly mechanism; 21. Series assembly; 211. Upper insert block; 212. Through hole; 213. Slot; 214. Side pivot support; 215. Hinge piece; 216. Magnetic plate; 217. Locking block; 22. Hinge assembly; 221. Upper plate; 222. Hinge rod; 223. Pin hole; 224. Pin; 3. Base assembly; 31. Lower insert block; 32. Locking hole; 33. Pivot block; 34. Lower pivot support; 35. Lighting lamp; 36. Base plate; 37. Anti-slip ridge. Detailed Implementation

[0025] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings.

[0026] See Figure 1-4 A detachable A-frame ladder includes a base ladder 1 and a disassembly mechanism 2, wherein the disassembly mechanism 2 is provided on the upper side of the ladder 1.

[0027] The disassembly and assembly mechanism 2 includes a series assembly 21 disposed on the upper and lower sides of the ladder 1, and a hinge assembly 22 is installed on the upper side of the series assembly 21.

[0028] In this utility model, the connecting assembly 21 includes an upper insert block 211 disposed on the upper side of the ladder 1. The upper insert block 211 has a through hole 212 inside. The bottom inner side of the ladder 1 has a slot 213. A side pivot support 214 is welded to the outer bottom end of the ladder 1. A hinge piece 215 is installed on the inner side of the side pivot support 214. A magnetic suction piece 216 is installed on the upper side of the hinge piece 215. A locking block 217 is installed on the lower side of the hinge piece 215. When using the A-frame ladder, the upper insert block 211 of the lower connecting assembly 21 is inserted into the slot 213 of the upper connecting assembly 21, and the A-frame ladder of appropriate height can be assembled as needed.

[0029] In this invention, the upper insert block 211 and the slot 213 are of similar size, and the side pivot support 214 and the hinge piece 215 are movably connected. When the A-frame ladder is disassembled, the magnetic piece 216 magnetically fixes the hinge piece 215 to the side of the ladder 1. When the A-frame ladder is used, after the series assembly 21 is connected in series, the hinge piece 215 is rotated to insert the locking block 217 into the through hole 212, which can ensure stable installation between the sections and effectively prevent the accident of falling due to the sudden disassembly of the A-frame ladder.

[0030] In this utility model, the hinge assembly 22 includes an upper plate 221 installed inside the upper insert block 211. A hinge rod 222 is installed inside the upper plate 221. A pin hole 223 is opened at the right end of the hinge rod 222. A pin 224 is installed inside the pin hole 223. When using the A-frame ladder, the hinge rod 222 hinges the two sets of ladders 1 together through the upper plate 221. The pin 224 can prevent the hinge rod 222 from coming out and causing the A-frame ladder to fall apart.

[0031] In this utility model, the dimensions of the hinged rod 222 and the through hole 212 are similar. The upper insertion block 211 and the upper plate 221 are movably connected, and the upper plate 221 and the hinged rod 222 are movably connected. When using the A-frame ladder, the upper insertion block 211 can rotate around the hinged rod 222 to facilitate opening the A-frame ladder to a suitable erection angle.

[0032] In some embodiments, a base assembly 3 is installed inside the slot 213. The base assembly 3 includes a lower insertion block 31 installed inside the slot 213. A locking hole 32 is opened on the inner side of the lower insertion block 31. A pivot block 33 is fixedly installed on the lower side of the lower insertion block 31. A lower pivot support 34 is installed on the outer side of the pivot block 33. A light 35 is installed on the left side of the lower pivot support 34. A base plate 36 is fixedly installed on the lower side of the lower pivot support 34. An anti-slip ridge 37 is welded on the lower side of the base plate 36. When using the A-frame ladder, the lower insertion block 31 is inserted into the slot 213 so that the base assembly 3 provides support for the A-frame ladder. The light 35 can help find a flat and suitable position to set up the A-frame ladder when setting up the ladder in the absence of light. The anti-slip ridge 37 is used to ensure stability on uneven ground and prevent slippage.

[0033] In some embodiments, the locking hole 32 and the locking block 217 are the same size, and the pivot block 33 and the lower pivot support 34 are movably connected. When using the A-frame ladder, after the lower insert block 31 is inserted into the slot 213, the locking block 217 needs to be inserted into the locking hole 32 to ensure that the base assembly 3 is stably installed at the bottom of the A-frame ladder to provide support. The lower pivot support 34 can rotate around the pivot block 33 to adapt to different angles of the ground and provide stable support for the A-frame ladder. When storing the A-frame ladder, the locking block 217 and the lower insert block 31 can be pulled out to remove the base assembly 3. The installation is convenient, the operation is simple, and the structure is stable.

[0034] As can be seen from the above technical solution, when using it, first insert the upper plug 211 of the lower series assembly 21 into the slot 213 of the upper series assembly 21, insert the locking block 217 into the through hole 212, hinge the two sets of ladders 1 together through the upper plate 221 using the hinge rod 222, insert the pin 224 into the pin hole 223, insert the lower plug 31 into the slot 213, insert the locking block 217 into the locking hole 32, and open the A-frame ladder to a suitable erection angle. This completes the usage process of a detachable A-frame ladder.

[0035] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the application disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope of this application is indicated by the claims.

[0036] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The embodiments of this application described above do not constitute a limitation on the scope of protection of this application.

Claims

1. A detachable A-frame ladder, comprising a base ladder (1) and a disassembly / assembly mechanism (2), characterized in that: The ladder (1) is provided with a disassembly and assembly mechanism (2) on its upper side; The disassembly and assembly mechanism (2) includes a series assembly (21) arranged on the upper and lower sides of the ladder (1), and a hinge assembly (22) is installed on the upper side of the series assembly (21).

2. A detachable A-frame ladder according to claim 1, characterized in that, The series assembly (21) includes an upper insert block (211) disposed on the upper side of the ladder (1), the upper insert block (211) having a through hole (212) inside, the bottom inner side of the ladder (1) having a slot (213), a side pivot support (214) welded to the outer bottom end of the ladder (1), a hinge piece (215) installed on the inner side of the side pivot support (214), a magnetic suction piece (216) installed on the upper side of the hinge piece (215), and a locking block (217) installed on the lower side of the hinge piece (215).

3. A detachable A-frame ladder according to claim 2, characterized in that, The upper insert (211) and the slot (213) are of similar size, and the side pivot support (214) and the hinge (215) are movably connected.

4. A detachable A-frame ladder according to claim 2, characterized in that, The hinge assembly (22) includes an upper plate (221) installed inside the upper insert block (211), a hinge rod (222) is installed inside the upper plate (221), and a pin hole (223) is opened at the right end of the hinge rod (222), and a pin (224) is installed inside the pin hole (223).

5. A detachable A-frame ladder according to claim 4, characterized in that, The hinged insert (222) and the through hole (212) are of similar size. The upper insert block (211) and the upper plate (221) are movably connected. The upper plate (221) and the hinged insert (222) are movably connected.

6. A detachable A-frame ladder according to claim 2, characterized in that, A base assembly (3) is installed on the inner side of the slot (213). The base assembly (3) includes a lower insertion block (31) installed on the inner side of the slot (213). A locking hole (32) is opened on the inner side of the lower insertion block (31). A rotating shaft block (33) is fixedly installed on the lower side of the lower insertion block (31). A lower rotating shaft support (34) is installed on the outer side of the rotating shaft block (33). A lighting lamp (35) is installed on the left side of the lower rotating shaft support (34). A base plate (36) is fixedly installed on the lower side of the lower rotating shaft support (34). An anti-slip ridge (37) is welded on the lower side of the base plate (36).

7. A detachable A-frame ladder according to claim 6, characterized in that, The card hole (32) and the card block (217) are the same size, and the rotating shaft block (33) and the lower rotating shaft support (34) are movably connected.

Citation Information

Patent Citations

  • Dismantled and assembled double ladder

    CN207538772U