CN218092874U

CN218092874U - Folding ladder

Info

Publication number: CN218092874U
Application number: CN202222275963.5U
Authority: CN
Inventors: 柳自平
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-08-29
Filing date: 2022-08-29
Publication date: 2022-12-20
Anticipated expiration: 2032-08-29

Abstract

The utility model belongs to the technical field of the ladder technique and specifically relates to a folding ladder, including two sets of cat ladder subassemblies, it is two sets of to rotate between the upper end of cat ladder subassembly and be connected with hinge means, the cat ladder subassembly includes two sets of bracket components that bilateral symmetry set up, and is two sets of evenly be provided with multiunit footboard subassembly from top to bottom between the bracket component, be provided with on the outside terminal surface of bracket component with the auxiliary assembly that hinge means links to each other, through setting up the bracket component and cooperating with the footboard subassembly, the footboard runs through the structure of backup pad for the pressure of footboard can be undertaken to the backup pad, when the rivet became invalid, can utilize the backup pad to support the footboard, prevents that the footboard from directly droing, and the extension plate that sets up on the footboard, can increase user's the scope of trampling, improves the security of using.

Description

Folding ladder

Technical Field

The utility model relates to a ladder technical field especially relates to a folding ladder.

Background

The ladder is used for climbing high instrument among the daily life, and the ladder commonly used now mainly is folding ladder, and this kind of folding ladder deuterogamies like the hinge means that proposes in chinese patent number "CN201220371286.0", not only can open and shut by the small-angle chevron shape, can also accomplish a font flat-open, very convenient to use.

However, such folding ladders also suffer from problems in practice; when the existing folding ladder is horizontally opened in a straight line shape, the hinge device is positioned in the middle, and if the hinge device needs to be locked or unlocked, personnel are required to move to the middle of the horizontally opened folding ladder, so that the operation danger is increased; the existing folding ladder is not provided with an auxiliary safety device when being horizontally opened in a straight line shape, and when the hinge device is failed accidentally, the safety device is not provided, so that the folding ladder can be prevented from being folded and deformed instantly; the footboard on the folding ladder of current is mostly single bolt or fix with rivet with being connected of the support column on left and right sides, and the footboard can break away from the support column in the twinkling of an eye when bolt or rivet became invalid, very easily takes place accident.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a folding ladder which aims at solving the defects of lower reliability, inconvenient operation and the like in the prior art.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the design is a folding ladder, which comprises two groups of ladder stand components, wherein a hinge device is connected between the upper ends of the ladder stand components in a rotating mode, the ladder stand components comprise two groups of support components which are arranged in a bilateral symmetry mode, a plurality of groups of pedal components are evenly arranged between the support components from top to bottom, auxiliary components connected with the hinge device are arranged on the outer end face of each support component, and a safety device is arranged on the movable joint between the support components on the same side of each ladder stand component.

Preferably, the bracket assembly comprises C-shaped support columns, and support plates are connected between inner side end faces of the C-shaped support columns.

Preferably, the pedal assembly comprises a pedal, the left end and the right end of the pedal respectively extend into the left group of C-shaped supporting columns and the right group of C-shaped supporting columns and penetrate through the supporting plate to be abutted against the end faces of the inner sides of the C-shaped supporting columns, and the pedal is fixedly connected with the C-shaped supporting columns through rivets.

Preferably, the pedal is of a hollow structure, and an elongated plate is arranged on the end face of one side of the pedal.

Preferably, the auxiliary assembly includes the sliding tray, the sliding tray with the outside terminal surface fixed connection of bracket component, the inside sliding connection of sliding tray has the push rod, the one end of push rod with slider on the hinge means links to each other, the other end of push rod is fixed be provided with extend to the handle in the sliding tray outside, be provided with on the outside terminal surface of sliding tray with the locking subassembly of handle activity pin joint.

Preferably, the locking assembly comprises a supporting block, the supporting block is fixedly connected with the outer side end face of the sliding groove, a bolt is connected inside the supporting block in a sliding mode, and one end of the bolt is movably connected inside the handle in a pin joint mode.

Preferably, the safety device comprises a bottom hoop and an iron hoop, the bottom hoop is fixedly connected with the outer side end face of the support assembly, rotating shafts are fixedly arranged at the upper end and the lower end of the iron hoop, one rotating shaft is rotatably connected in the bottom hoop, the two rotating shafts are located on the ladder stand assembly and are located on the same side, a clamping seat assembly is arranged on the outer side end face of the support assembly, and the other rotating shaft is movably clamped in the clamping seat assembly.

Preferably, the clamping seat assembly comprises a clamping seat, two groups of supporting sliding grooves are formed in the upper portion and the lower portion of the end face of the outer side of the clamping seat, two groups of supporting sliding grooves are connected with supporting sliding blocks in a sliding mode, an elastic piece is connected between the supporting sliding blocks and the end face of the inner side of each supporting sliding groove, clamping blocks which extend to the left side and the right side of the rotating shaft respectively are arranged on the end faces of the outer side of the two groups of supporting sliding blocks, and the rotating shaft is movably clamped between the two groups of clamping blocks.

The utility model provides a pair of folding ladder, beneficial effect lies in:

through the auxiliary assembly, an operator can lock the hinge device to unlock the hinge device without approaching the hinge device positioned in the middle after the linear expansion, so that the use convenience and safety are improved;

through the safeties that sets up, when the horizontal flat-open of folding ladder word, the accessible rotates the hoop, makes the hoop link to each other with the card seat subassembly on the bracket component of opposite side, can play the effect of insurance, when the unexpected inefficacy of hinge means, still can utilize the hoop to play the supporting effect.

Through the cooperation of bracket component and footboard subassembly that sets up, the footboard runs through the structure of backup pad for the pressure of footboard can be undertaken to the backup pad, when the rivet became invalid, can utilize the backup pad to support the footboard, prevents that the footboard from directly coming off, and the extension board that sets up on the footboard, can increase user's the scope of trampling, improves the security of using.

Drawings

Fig. 1 is a schematic view of a main structure of a foldable ladder according to the present invention;

fig. 2 is an enlarged schematic structural view of a region a of the foldable ladder of the present invention;

fig. 3 is a schematic view of an enlarged structure of a region B of the foldable ladder of the present invention;

fig. 4 is a schematic cross-sectional view of a safety device of a foldable ladder according to the present invention;

fig. 5 is an enlarged schematic structural view of a region C of the foldable ladder of the present invention;

FIG. 6 is a schematic view of a step assembly of a foldable ladder according to the present invention;

fig. 7 is a schematic cross-sectional view of a bracket assembly of a foldable ladder according to the present invention.

In the figure: 1. a bracket assembly; 101. a C-shaped support column; 102. a support plate; 103. riveting; 2. a pedal assembly; 201. a pedal; 202. a lengthening plate; 3. a hinge device; 301. a slider; 4. an auxiliary component; 401. a sliding groove; 402. a push rod; 403. a handle; 404. a support block; 405. a bolt; 5. a safety device; 501. a bottom hoop; 502. an iron hoop; 503. a rotating shaft; 504. a card holder; 505. a support chute; 506. a support slide block; 507. and (4) clamping the block.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-7, the folding ladder comprises two groups of ladder stand components, hinge devices 3 are rotatably connected between the upper ends of the two groups of ladder stand components, each ladder stand component comprises two groups of support components 1 which are arranged in bilateral symmetry, a plurality of groups of pedal components 2 are uniformly arranged between the two groups of support components 1 from top to bottom, auxiliary components 4 connected with the hinge devices 3 are arranged on the outer end faces of the support components 1, and safety devices 5 are movably clamped between the support components 1 on the same side of the two groups of ladder stand components.

Referring to fig. 6-7, the bracket assembly 1 includes a C-shaped supporting pillar 101, a supporting plate 102 is connected between inner end surfaces of the C-shaped supporting pillar 101, and the supporting plate 102 is parallel to an opening of the C-shaped supporting pillar 101, so as to support the pedal assembly 2.

The pedal assembly 2 comprises a pedal 201, the left end and the right end of the pedal 201 extend into the left group of C-shaped supporting columns 101 and penetrate through the supporting plate 102 to be abutted to the inner side end faces of the C-shaped supporting columns 101, and the pedal 201 is fixedly connected with the C-shaped supporting columns 101 through rivets 103, so that the supporting plate 102 can be utilized to support the pedal assembly 2.

The pedal 201 is of a hollow structure, and the lengthened plate 202 is arranged on the end face of one side of the pedal 201, so that the weight can be reduced, and the pedal area is increased.

Referring to fig. 2-3, the auxiliary assembly 4 includes a sliding groove 401, the sliding groove 401 is fixedly connected to an outer end surface of the bracket assembly 1, a push rod 402 is slidably connected to an inside of the sliding groove 401, one end of the push rod 402 is connected to the slider 301 on the hinge device 3, the other end of the push rod 402 is fixedly provided with a handle 403 extending to an outer side of the sliding groove 401, and a locking assembly movably pinned to the handle 403 is provided on an outer end surface of the sliding groove 401, so that the locking state of the hinge device 3 can be controlled at a remote location by using the push rod 402.

The locking assembly comprises a supporting block 404, the supporting block 404 is fixedly connected with the outer end face of the sliding groove 401, a bolt 405 is connected inside the supporting block 404 in a sliding mode, one end of the bolt 405 is movably connected inside the handle 403 in a pin mode, the fixed handle 403 can be fixed to the position, locked by the hinge device 3, and accidental movement is prevented.

Referring to fig. 1, 4 and 5, the safety device 5 includes a bottom hoop 501 and an iron hoop 502, the bottom hoop 501 is fixedly connected to the outer end face of the support assembly 1, the upper and lower ends of the iron hoop 502 are both fixedly provided with a rotating shaft 503, a set of rotating shafts 503 are rotatably connected to the inside of the bottom hoop 501, the outer end face of the support assembly 1 located on the same side of the two sets of ladder assemblies is both provided with a clamping seat assembly, the other set of rotating shafts 503 are movably clamped in the clamping seat assembly, when a ladder is unfolded, the rotating shaft at one end of the iron hoop 502 is taken down from the clamping seat assembly on the same set of support assembly 1 as the bottom hoop 501, so that the iron hoop 502 rotates along the bottom hoop 501 and is connected to the clamping seat assembly on the other side 1, and the safety effect can be achieved.

The clamping seat assembly comprises a clamping seat 504, two groups of supporting sliding grooves 505 are formed in the end face of the outer side of the clamping seat 504 in an up-and-down mode, supporting sliding blocks 506 are connected inside the two groups of supporting sliding grooves 505 in a sliding mode, elastic pieces are connected between the supporting sliding blocks 506 and the end face of the inner side of the supporting sliding grooves 505, clamping blocks 507 which respectively extend to the left side and the right side of the rotating shaft 503 are arranged on the end face of the outer side of the two groups of supporting sliding blocks 506, the rotating shaft 503 is movably clamped between the two groups of clamping blocks 507, and the elastic pieces are springs so that the rotating shaft can be movably clamped between the two groups of clamping blocks 507.

A working mode; when the ladder stand works, the hinge device 3 is unlocked, the two ladder stand assemblies are horizontally opened, then the push rod 402 can be pushed by the handle 403 to enable the sliding block 301 on the hinge device 3 to enter a locking position, and then the bolt 405 is inserted into the handle 403 to complete auxiliary operation;

the rotating shaft at one end of the ferrule 502 is taken down from the card seat assembly on the bracket assembly 1 in the same group as the bottom ferrule 501, so that the ferrule 502 rotates along the bottom ferrule 501 and is connected with the card seat assembly on the bracket assembly 1 on the other side, and the safety effect can be achieved.

The above, only be the embodiment of the preferred of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, which are designed to be replaced or changed equally, all should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a folding ladder, includes two sets of cat ladder subassemblies, its characterized in that: it is two sets of rotate between the upper end of cat ladder subassembly and be connected with hinge means (3), the cat ladder subassembly includes two sets of bracket component (1) that bilateral symmetry set up, and is two sets of evenly be provided with multiunit footboard subassembly (2) from top to bottom between bracket component (1), be provided with on the outside terminal surface of bracket component (1) with auxiliary assembly (4) that hinge means (3) link to each other are located two sets of on the cat ladder subassembly with one side movable joint has safeties (5) between bracket component (1).

2. A folding ladder as set forth in claim 1 wherein: the bracket component (1) comprises C-shaped supporting columns (101), and supporting plates (102) are connected between the end faces of the inner sides of the C-shaped supporting columns (101).

3. A folding ladder as claimed in claim 2, wherein: the pedal assembly (2) comprises a pedal (201), the left end and the right end of the pedal (201) respectively extend into the left group of C-shaped supporting columns (101), penetrate through the supporting plates (102) and abut against the inner side end faces of the C-shaped supporting columns (101), and the pedal (201) is fixedly connected with the C-shaped supporting columns (101) through rivets (103).

4. A folding ladder as set forth in claim 3 wherein: the pedal (201) is of a hollow structure, and an elongated plate (202) is arranged on the end face of one side of the pedal (201).

5. A folding ladder as claimed in claim 1, wherein: auxiliary assembly (4) include sliding tray (401), sliding tray (401) with the outside terminal surface fixed connection of bracket component (1), the inside sliding connection of sliding tray (401) has push rod (402), the one end of push rod (402) with slider (301) on hinge means (3) link to each other, the other end of push rod (402) is fixed be provided with extend to handle (403) in sliding tray (401) outside, be provided with on the outside terminal surface of sliding tray (401) with the locking subassembly of handle (403) activity pin joint.

6. A folding ladder according to claim 5, wherein: the locking assembly comprises a supporting block (404), the supporting block (404) is fixedly connected with the outer end face of the sliding groove (401), a bolt (405) is connected inside the supporting block (404) in a sliding mode, and one end of the bolt (405) is movably connected inside the handle (403) in a pin joint mode.

7. A folding ladder as set forth in claim 1 wherein: safety device (5) include base hoop (501), iron hoop (502), base hoop (501) with the outside terminal surface fixed connection of bracket component (1), the upper and lower both ends of iron hoop (502) are all fixed and are provided with pivot (503), and are a set of pivot (503) rotate connect in the inside of base hoop (501), lie in two sets of on the cat ladder subassembly with one side all be provided with the cassette subassembly on the outside terminal surface of bracket component (1), another group pivot (503) activity joint in the inside of cassette subassembly.

8. A folding ladder as claimed in claim 7, wherein: the clamping seat assembly comprises a clamping seat (504), two groups of supporting sliding grooves (505) are formed in the outer side end face of the clamping seat (504) in an up-and-down mode, two groups of supporting sliding blocks (506) are connected to the inner side end faces of the supporting sliding grooves (505) in a sliding mode, elastic pieces are connected between the supporting sliding blocks (506) and the inner side end faces of the supporting sliding grooves (505), two groups of clamping blocks (507) extending to the left side and the right side of the rotating shaft (503) respectively are arranged on the outer side end face of the supporting sliding blocks (506), and the rotating shaft (503) is movably clamped between the two groups of clamping blocks (507).