CN220890068U

CN220890068U - Unlocking structure of herringbone ladder

Info

Publication number: CN220890068U
Application number: CN202322339553.7U
Authority: CN
Inventors: 黄一宁; 赵会敏
Original assignee: Guangdong Weijing Household Product Co ltd
Current assignee: Guangdong Weijing Household Product Co ltd
Priority date: 2023-08-30
Filing date: 2023-08-30
Publication date: 2024-05-03
Anticipated expiration: 2033-08-30

Abstract

The utility model relates to an unlocking structure of a herringbone ladder, which is characterized by comprising an upper pedal, a lower pedal, a connecting rod, a connecting arm, a front ladder rod, a rear ladder rod, a rotating structure and a locking plate; the upper pedal is positioned above the lower pedal, and the connecting rod is respectively connected with the upper pedal and the lower pedal in a rotating way; the connecting arms are respectively arranged at two sides of the upper pedal, the front ladder bar is arranged on the connecting arms and can rotate, the lower pedal is arranged on the front ladder bar and can rotate, the rotating structure is arranged on the upper pedal and can rotate, the rear ladder bar is arranged on the rotating structure and is distributed in a crossing way with the front ladder bar, and the crossing part of the rear ladder bar and the front ladder bar is rotationally connected; the rotating structure is provided with a locking protrusion; one end of the locking plate is installed on the corresponding connecting arm and can rotate, a lock hole and a chute are arranged on the locking plate, the lock hole is communicated with the chute, and the lock hole is matched and fixed with the locking protrusion. The advantages are that: the phenomenon of furling can not occur in the moving or using process after the herringbone ladder is completely opened, and the herringbone ladder is completely stable after being opened.

Description

Unlocking structure of herringbone ladder

Technical Field

The utility model relates to an unlocking structure of a herringbone ladder.

Background

The phenomenon that current double-ended ladder is folding in the in-process of removing or using easily takes place after opening completely, on the one hand, can take place the risk of tong, on the other hand, probably falls because the double-ended ladder is unstable and takes place after the user climbs, forms the potential safety hazard.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art and provide an unlocking structure of a herringbone ladder, which is completely stable after being opened, and the herringbone ladder cannot be folded in the moving or using process after being completely opened.

In order to achieve the above purpose, the utility model is realized in such a way that the utility model is actually an unlocking structure of a herringbone ladder, an upper pedal, more than one lower pedal and a connecting rod; the upper pedal is positioned above the lower pedal, and the connecting rod is respectively connected with the upper pedal and more than one lower pedal in a rotating way;

A connecting arm and a front ladder bar; one end of the connecting arm is respectively arranged at two sides of the upper pedal, the front ladder bar is arranged at the other end of the connecting arm and can rotate, the lower pedal is arranged on the front ladder bar and can rotate,

A rear ladder bar and a rotating structure; one end part of the rotating structure is arranged on the upper pedal and can rotate, the rear ladder rod is arranged on the other end part of the rotating structure and is distributed in a crossing way with the front ladder rod, and the crossing part of the rear ladder rod and the front ladder rod is rotationally connected; the rotating structure is provided with a locking protrusion;

A latch plate; one end of the locking plate is installed on the corresponding connecting arm and can rotate, a lock hole and a chute are arranged on the locking plate, the lock hole is communicated with the chute, and the lock hole is matched and fixed with the locking protrusion.

In the technical scheme, the rotating structure comprises a rotating frame, a first fixed arm and a second fixed arm; the rotating frame is arranged on the upper pedal through a first fixed arm and can rotate, and the rear ladder rod is arranged on the rotating frame through a second fixed arm and can rotate.

In the technical scheme, the locking protrusion is connected with the second fixing arm.

In this technical scheme, the hasp arch includes protruding and the spacing face of outside extension, protruding installs on the back ladder pole and passes the lockhole, spacing face is established on protruding and is located the lockhole outside.

In the technical scheme, a pressing plate is arranged at the other end of the locking plate.

In the technical scheme, a handle is arranged on the back of the upper pedal.

Compared with the prior art, the utility model has the advantages that: the phenomenon of furling can not occur in the moving or using process after the herringbone ladder is completely opened, and the herringbone ladder is completely stable after being opened.

Drawings

FIG. 1 is a perspective view of the utility model after deployment;

FIG. 2 is a perspective view of the right view of the present utility message;

FIG. 3 is a top view of FIG. 1;

FIG. 4 is a cross-sectional view A-A of FIG. 3;

FIG. 5 is a B-B cross-sectional view of FIG. 3;

FIG. 6 is an enlarged view of part A of FIG. 5;

FIG. 7 is a schematic view of the structure of the latch plate of the present utility model;

FIG. 8 is a perspective view of the present utility model in a top view;

FIG. 9 is an enlarged view of part B of FIG. 8;

Fig. 10 is a perspective view of the present invention after message folding.

Detailed Description

The following describes the embodiments of the present utility model further with reference to the drawings. The description of these embodiments is provided to assist understanding of the present utility model, but is not intended to limit the present utility model. In addition, technical features of the embodiments of the present utility model described below may be combined with each other as long as they do not collide with each other.

In the description of the present utility model, the azimuth or positional relationship indicated by the terms "one end", "the other end", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of describing the present utility model and do not require that the present utility model must be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present utility model.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "mounted" are to be construed broadly, and may be, for example, fixedly attached, detachably attached, or integrally formed; the two components can be connected mechanically, directly or indirectly through an intermediate medium, and the two components can be communicated internally or the two components can be in interaction relation. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

As shown in fig. 1 to 10, an unlocking structure of a herringbone ladder comprises

An upper pedal 1, more than one lower pedal 2 and a connecting rod 3; the upper pedal 1 is positioned above the lower pedal 2, and the connecting rod 3 is respectively and rotatably connected with the upper pedal 1 and more than one lower pedal 2;

A connecting arm 4 and a front ladder bar 5; one end of the connecting arm 4 is respectively installed at both sides of the upper pedal 1, the front ladder bar 5 is rotatably installed at the other end of the connecting arm 4, the lower pedal 2 is rotatably installed at the front ladder bar 5,

A rear ladder bar 7 and a rotating structure 9; one end part of the rotating structure 9 is arranged on the upper pedal 1 and can rotate, the rear ladder rod 7 is arranged on the other end part of the rotating structure 9 and is distributed in a crossing way with the front ladder rod 5, and the crossing part of the rear ladder rod 7 and the front ladder rod 5 is rotationally connected; a locking protrusion 8 is arranged on the rotating structure 9;

A latch plate 6; one end of the locking plate 6 is installed on the corresponding connecting arm 4 and can rotate, a lock hole 61 and a sliding groove 62 are arranged on the locking plate 6, the lock hole 61 is communicated with the sliding groove 62, and the lock hole 61 is matched and fixed with the locking protrusion 8.

When the front ladder bar 5 and the rear ladder bar 7 are crossed in the process of complete unfolding, the rotating structure 9 rotates to the corresponding position, and the locking protrusions 8 are locked in the locking holes 61 through the sliding grooves 62, so that the front ladder bar 5 and the rear ladder bar 7 are completely fixed;

When the folding is needed, the locking plate 6 is lifted upwards, so that the locking protrusion 8 is separated from the locking hole 61 to fold the front ladder bar 5 and the rear ladder bar 7, the locking protrusion 8 moves along the sliding groove 62, and the rotating structure 9 rotates and the locking plate rotates, so that the folding is schematically shown in fig. 10.

In this embodiment, the rotating structure 9 includes a rotating frame 91, a first fixed arm 92, and a second fixed arm 93; the turret 91 is rotatably mounted on the upper pedal 1 by means of a first fixed arm 92, and the rear step bar 7 is rotatably mounted on the turret 91 by means of a second fixed arm 93.

In this embodiment, the latch protrusion 8 is connected to the second fixing arm 93.

In this embodiment, the latch protrusion 8 includes a protrusion 81 and an outwardly extending limiting surface 82, the protrusion 81 is mounted on the rear ladder bar 7 and passes through the lock hole 61, and the limiting surface 82 is disposed on the protrusion 81 and located outside the lock hole 61. The limiting surface 82 is located at the outer side of the lock hole 61 to prevent the locking plate 6 from shaking, so that the lock hole 61 is separated from the protrusion 81.

In this embodiment, a pressing plate 63 is provided at the other end of the latch plate 6.

In this embodiment, a handle 11 is provided on the back of the upper pedal 1.

The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings, but the present utility model is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made hereto without departing from the spirit and scope of the utility model as defined by the appended claims.

Claims

1. The utility model provides an unlocking structure of double ladder which characterized in that includes

An upper pedal (1), more than one lower pedal (2) and a connecting rod (3); the upper pedal (1) is positioned above the lower pedal (2), and the connecting rod (3) is respectively connected with the upper pedal (1) and more than one lower pedal (2) in a rotating way;

A connecting arm (4) and a front ladder bar (5); one end of the connecting arm (4) is respectively arranged at two sides of the upper pedal (1), the front ladder rod (5) is arranged at the other end of the connecting arm (4) and can rotate, the lower pedal (2) is arranged on the front ladder rod (5) and can rotate,

A rear ladder bar (7) and a rotating structure (9); one end part of the rotating structure (9) is arranged on the upper pedal (1) and can rotate, the rear ladder rod (7) is arranged on the other end part of the rotating structure (9) and is distributed in a crossing way with the front ladder rod (5), and the crossing part of the rear ladder rod (7) and the front ladder rod (5) is rotationally connected; a locking protrusion (8) is arranged on the rotating structure (9);

A latch plate (6); one end of the locking plate (6) is installed on the corresponding connecting arm (4) and can rotate, a lock hole (61) and a sliding groove (62) are formed in the locking plate (6), the lock hole (61) is communicated with the sliding groove (62), and the lock hole (61) is matched and fixed with the locking protrusion (8).

2. The herringbone ladder unlocking structure according to claim 1, characterized in that the rotating structure (9) comprises a rotating frame (91), a first fixed arm (92) and a second fixed arm (93); the rotating frame (91) is mounted on the upper pedal (1) through a first fixed arm (92) and can rotate, and the rear ladder bar (7) is mounted on the rotating frame (91) through a second fixed arm (93) and can rotate.

3. The double ladder unlocking structure according to claim 2, characterized in that the locking protrusion (8) is connected with a second fixing arm (93).

4. A herringbone ladder unlocking structure according to claim 3, characterized in that the locking protrusion (8) comprises a protrusion (81) and an outwardly extending limiting surface (82), the protrusion (81) is mounted on the rear ladder bar (7) and passes through the locking hole (61), and the limiting surface (82) is arranged on the protrusion (81) and is located outside the locking hole (61).

5. The herringbone ladder unlocking structure according to claim 1, characterized in that a pressing plate (63) is provided at the other end of the locking plate (6).

6. The herringbone ladder unlocking structure according to claim 1, characterized in that a handle (11) is provided on the back side of the upper pedal (1).