CN220705599U

CN220705599U - Hanging ladder

Info

Publication number: CN220705599U
Application number: CN202321784934.XU
Authority: CN
Inventors: 谢小燕; 蒋朋刚
Original assignee: Lain Zhigong Alloy Guangde Co ltd
Current assignee: Lain Zhigong Alloy Guangde Co ltd
Priority date: 2023-07-07
Filing date: 2023-07-07
Publication date: 2024-04-02
Anticipated expiration: 2033-07-07

Abstract

A hanging ladder comprises a ladder main body, a pedal hinged to the upper end of a ladder column, a locking structure for adjusting and locking the opening state or the folding state of the pedal, and a limiting structure for keeping the opening state of the pedal. The limiting structure is added to bear load simultaneously, external force is resisted, the probability of fracture of the locking structure due to overlarge load is reduced, the service life of the ladder is prolonged, and the pedal is kept in an open state and is not affected by fracture of the locking structure when the locking structure is broken, so that accidents of a user are prevented, and the safety coefficient of the ladder is improved.

Description

Hanging ladder

Technical Field

The utility model relates to a climbing appliance, in particular to a hanging ladder.

Background

When loading and unloading cargoes to and from a vehicle, since the bottom of the carriage of the vehicle has a height from the ground, cooperation of multiple persons is often required to smoothly load and unload cargoes. In order to improve efficiency, someone conveniently ascends a height through a mode of obliquely erecting a ladder or a flat plate, but the ladder or the flat plate is obliquely supported on the ground, so that the problem that the support is unstable and easy to incline exists, and potential safety hazards exist.

Aiming at the problems, the hanging ladder in the prior art comprises a ladder column, wherein the lower end of the ladder column is abutted against the ground, the upper end of the ladder column is provided with a pedal for a person to stand, and the rear end of the pedal is provided with a hook connected with a carriage; the pedal is presented and maintained in an open or collapsed state by a locking structure.

The climbing operation is a high-risk operation, and the ladder is required to ensure enough safety when in use, especially in the condition that a hanging ladder is used for loading and unloading goods up and down, the weight born by a ladder column and a pedal is larger, the pedal in the prior art only resists external force and keeps an open state by virtue of a locking structure, and the locking structure is likely to break and lose the locking function of the pedal after long-term use, so that accidents occur to users.

Therefore, how to solve the above-mentioned drawbacks of the prior art is a subject to be studied and solved by the present utility model.

Disclosure of Invention

The utility model aims to provide a hanging ladder.

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

The ladder main body is in a ladder-shaped state and comprises a left ladder column and a right ladder column;

the pedal is hinged to the upper ends of the left ladder post and the right ladder post through the left hinge piece and the right hinge piece, and has an open state and a folding state;

the locking structure is arranged at the hinge position of the corresponding pedal and the ladder column and used for adjusting and locking the opening state and the folding state of the pedal;

the limiting structure comprises a first limiting part, and the first limiting part is used for keeping the pedal in an open state;

the hanging ladder is configured to: when the pedal is in an open state, the pedal is positioned at the rear side of the ladder post; when the pedal is in a folded state, the pedal is positioned on an extension line of the upper end of the ladder post.

In the above-mentioned scheme, set up limit structure in hanging the ladder, this limit structure's first limit portion is used for the maintenance to footboard open condition, promptly under the footboard open and use state, can bear or share partial load, reduces the cracked probability of locking structure because of the load is too big on the one hand, prolongs the life of ladder, on the other hand when locking structure breaks, makes the footboard keep open condition and does not receive locking structure fracture influence, prevents that the user from taking place the accident, improves the factor of safety of ladder.

In the above scheme, the limit structure can be a support block arranged on the ladder main body and used for supporting the pedal, can also be a chain with one end connected with the pedal and the other end connected with the ladder main body, and can also be other limit structures with limit functions.

In the scheme, when the pedal is in the folded state, the pedal is positioned on the extension line of the upper end of the ladder column, compared with the pedal in the folded state in the prior art, the pedal is positioned on and close to the rear surface of the ladder column, and occupies smaller space in the folded state, so that the boxing rate of a manufacturer during shipment is improved, and the transportation cost is reduced.

According to a further technical scheme, the first limiting part is a first limiting protrusion integrally formed on the hinge plate, and when the pedal is in an open state, the first limiting protrusion is in abutting fit with the lower surface of the pedal. The pedal can be quickly aligned and turned to an open state by the aid of the first limiting protrusions, when the pedal is abutted against the first limiting protrusions, the pedal is right opposite to the open state, the operating handle is loosened, and the head of the lock needle is just aligned and stretches into the first locking hole.

According to a further technical scheme, the limiting structure further comprises a second limiting part, and the second limiting part is used for limiting the folding state of the pedal. When the pedal rotates upwards to a folding state, the pedal can be quickly aligned to the folding state.

According to a further technical scheme, the second limiting part is a second limiting protrusion integrally formed on the hinge plate, and when the pedal is in a folded state, the second limiting protrusion is in abutting fit with the upper surface of the pedal. When the pedal rotates upwards to be abutted against the second limiting protrusion, the pedal is opposite to the folding state, the operating handle is released, and the head of the lock needle is just aligned and stretches into the second locking hole.

Further technical scheme, limit structure is equipped with two sets of, and two sets of limit structure bilateral symmetry set up on two left and right hinge pieces. The two groups are arranged, so that the safety of the ladder is higher.

According to a further technical scheme, the locking structure comprises an elastic locking piece, and the elastic locking piece is arranged corresponding to a first locking hole and a second locking hole which are formed in the hinge piece; when the elastic locking piece is inserted into the first locking hole, the elastic locking piece corresponds to the opening state of the pedal; when the elastic locking piece is inserted into the second locking hole, the elastic locking piece corresponds to the folding state of the pedal.

According to a further technical scheme, the elastic locking piece comprises a positioning seat fixedly connected with the pedal, a locking needle and a spring, wherein the locking needle is arranged corresponding to the positioning seat; one end of the spring is in abutting fit with the lock needle, and the other end of the spring is in abutting fit with the positioning seat, so that the head of the lock needle keeps a movement trend of extending outwards into the locking hole; the tail of the lock needle is provided with an operating handle, and when the lock is unlocked, the operating handle is pulled inwards, so that the lock needle overcomes the elastic force of the spring to displace inwards and the head of the lock needle is separated from the locking hole.

Further technical scheme, the locking structure is equipped with two sets of, and two sets of locking structure bilateral symmetry set up in the footboard and control two articulated departments of ladder post. When unlocking, one hand simultaneously grabs the left operating handle and the right operating handle, and the force is applied to enable the two operating handles to simultaneously displace inwards.

According to a further technical scheme, a hook is arranged at the rear end of the pedal, and the hook is used for connecting a hanging ladder with a vehicle.

The working principle and the advantages of the utility model are as follows:

the hanging ladder comprises a ladder main body, an upper pedal hinged to a ladder column, a locking structure for adjusting and locking the pedal in an open state or a folded state, and a limiting structure for keeping the pedal in the open state.

Compared with the prior art, the pedal only depends on the locking structure to resist external force and keep the opening state, the limiting structure is added to bear the load simultaneously to resist the external force, so that the probability of fracture of the locking structure due to overlarge load is reduced, the service life of the ladder is prolonged, and the pedal is kept to be in the opening state and is not affected by the fracture of the locking structure when the locking structure is broken, so that accidents of a user are prevented, and the safety coefficient of the ladder is improved.

Drawings

FIG. 1 is a schematic structural view of a hanging ladder in an open state according to an embodiment of the present utility model;

FIG. 2 is an enlarged view at A of FIG. 1;

fig. 3 is a schematic structural view of the hanging ladder in a folded state;

FIG. 4 is an enlarged view of FIG. 3 at B;

fig. 5 is a second schematic structural view (left side view) of the hanging ladder in a folded state according to the embodiment of the present utility model;

FIG. 6 is a schematic structural view of a hinge plate according to an embodiment of the present utility model (front view);

fig. 7 is a schematic diagram of a hinge plate according to an embodiment of the present utility model.

In the above figures: 1. a ladder column; 2. a pedal; 3. a hinge plate; 4. a first locking hole; 5. a second locking hole; 6. a first limit part; 7. a second limit part; 8. a positioning seat; 9. locking the needle; 10. a spring; 11. an operation handle; 12. a hook.

Description of the embodiments

The utility model is further described below with reference to the accompanying drawings and examples:

examples: the present utility model will be described in detail with reference to the drawings, wherein modifications and variations are possible in light of the teachings of the present utility model, without departing from the spirit and scope of the present utility model, as will be apparent to those of skill in the art upon understanding the embodiments of the present utility model.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the present disclosure. Singular forms such as "a," "an," "the," and "the" are intended to include the plural forms as well, as used herein.

The terms "first," "second," and the like, as used herein, do not denote a particular order or sequence, nor are they intended to be limiting, but rather are merely used to distinguish one element or operation from another in the same technical term.

As used herein, "connected" or "positioned" may refer to two or more components or devices in physical contact with each other, or indirectly, or in operation or action with each other.

As used herein, the terms "comprising," "having," and the like are all open-ended terms that mean including, but not limited to.

The term (terms) as used herein generally has the ordinary meaning of each term as used in this field, in this disclosure, and in the special context, unless otherwise noted. Certain terms used to describe the present disclosure are discussed below, or elsewhere in this specification, to provide additional guidance to those skilled in the art in connection with the description herein.

The terms "front", "rear", "upper", "lower", "left", "right" and the like used herein are directional terms, and are merely used to describe positional relationships among the structures in the present application, and are not intended to limit the present protection scheme and the specific direction in actual implementation.

Referring to fig. 1-7, the hanging ladder comprises a ladder main body, wherein the ladder main body is in a ladder-shaped state and comprises a left ladder column 1, a right ladder column 1 and handrails arranged at the upper ends of the two ladder columns 1;

the hanging ladder further comprises a pedal 2, wherein the pedal 2 is hinged to the upper ends of the left and right ladder columns 1 through left and right hinge sheets 3 and has an open state and a folded state; the pedal 2 is positioned at the rear side of the ladder post 1 when the pedal 2 is in an open state; when the pedal 2 is in the folded state, the pedal 2 is positioned on the extension line of the upper end of the ladder column 1. The rear end of the pedal 2 is provided with a hook 12, and the hook 12 realizes the connection of a hanging ladder and a vehicle.

The hanging ladder further comprises a locking structure, wherein the locking structure is arranged at the hinge position of the pedal 2 and the ladder column 1 and is used for adjusting and locking the opening state and the folding state of the pedal 2; the locking structure comprises an elastic locking piece, and the elastic locking piece is arranged corresponding to a first locking hole 4 and a second locking hole 5 which are formed in the hinge piece 3; wherein, when the elastic locking piece is inserted into the first locking hole 4, the opening state of the pedal 2 is corresponding; when the elastic locking piece is inserted into the second locking hole 5, the folding state of the pedal 2 is corresponding. The elastic locking piece comprises a positioning seat 8 fixedly connected with the pedal 2, a locking needle 9 arranged corresponding to the positioning seat 8 and a spring 10; the positioning seat 8 is hidden on the lower surface of the pedal 2, the spring 10 is sleeved on the lock needle 9 and is fixed on the lock needle 9 through a spring piece, one end of the spring 10 is in abutting fit with the lock needle 9, the other end of the spring 10 is in abutting fit with the positioning seat 8, and the head of the lock needle 9 further keeps a movement trend of extending outwards into the locking hole; an operating handle 11 is arranged at the tail part of the lock needle 9, and when the lock is unlocked, the operating handle 11 is pulled inwards, so that the lock needle 9 is displaced inwards against the elastic force of a spring 10 and the head part of the lock needle 9 is separated from the locking hole.

The locking structure is provided with two groups, the two groups of locking structures are respectively arranged corresponding to two hinged positions of the pedal 2 and the left and right ladder columns 1, and the two groups of locking structures are arranged in bilateral symmetry.

The hanging ladder further comprises a limiting structure, wherein the limiting structure comprises a first limiting part 6, and the first limiting part 6 is used for keeping the pedal 2 in an open state; the first limiting part 6 is a first limiting protrusion integrally formed on the hinge plate 3, and the first limiting protrusion is in abutting fit with the lower surface of the pedal 2 when the pedal 2 is in an open state.

The limiting structure further comprises a second limiting part 7, and the second limiting part 7 is used for limiting the folding state of the pedal 2; the second limiting part 7 is a second limiting protrusion integrally formed on the hinge plate 3, and the second limiting protrusion is in abutting fit with the upper surface of the pedal 2 when the pedal 2 is in a folded state.

The limiting structures are provided with two groups, the two groups of limiting structures are respectively arranged on the left hinge piece 3 and the right hinge piece 3, and the two groups of limiting structures are arranged in bilateral symmetry.

According to the above structural composition, the specific working principle of the utility model is now described as follows:

the hanging ladder has a use state and a folding state, when the hanging ladder is in the use state, namely the pedal 2 is in an open state, the operating handle 11 is pulled inwards to enable the head of the lock needle 9 to be separated from the second locking hole 5, then the pedal 2 is rotated downwards to enable the lower surface of the pedal 2 to be abutted to the first limiting protrusion, the operating handle 11 is loosened, and the head of the lock needle 9 stretches into the first locking hole 4.

When the pedal 2 is in the folded state, the operating handle 11 is pulled inwards to enable the head of the lock needle 9 to be separated from the first locking hole 4, then the pedal 2 is rotated downwards to enable the upper surface of the pedal 2 to be abutted to the second limiting protrusion, the operating handle 11 is loosened, and the head of the lock needle 9 extends into the second locking hole 4.

The above embodiments are provided to illustrate the technical concept and features of the present utility model and are intended to enable those skilled in the art to understand the content of the present utility model and implement the same, and are not intended to limit the scope of the present utility model. All equivalent changes or modifications made in accordance with the spirit of the present utility model should be construed to be included in the scope of the present utility model.

Claims

1. A hanging ladder, which is characterized in that: comprising

The ladder main body is in a ladder-shaped state and comprises a left ladder column (1) and a right ladder column (1);

the pedal (2) is hinged to the upper ends of the left and right ladder columns (1) through the left and right hinge pieces (3) and has an open state and a folded state;

the locking structure is arranged at the hinge position of the corresponding pedal (2) and the ladder column (1) and is used for adjusting and locking the opening state and the folding state of the pedal (2);

the limiting structure comprises a first limiting part (6), wherein the first limiting part (6) is used for keeping the pedal (2) in an open state;

the hanging ladder is configured to: when the pedal (2) is in an open state, the pedal (2) is positioned at the rear side of the ladder post (1); when the pedal (2) is in a folded state, the pedal (2) is positioned on an extension line of the upper end of the ladder column (1).

2. A hanging ladder according to claim 1, characterized in that: the first limiting part (6) is a first limiting protrusion integrally formed on the hinge piece (3), and when the pedal (2) is in an open state, the first limiting protrusion is in abutting fit with the lower surface of the pedal (2).

3. A hanging ladder according to claim 2, characterized in that: the limiting structure further comprises a second limiting part (7), and the second limiting part (7) is used for limiting the folding state of the pedal (2).

4. A hanging ladder according to claim 3, characterized in that: the second limiting part (7) is a second limiting protrusion integrally formed on the hinge piece (3), and the second limiting protrusion is in abutting fit with the upper surface of the pedal (2) when the pedal (2) is in a folded state.

5. A hanging ladder according to claim 4, characterized in that: the limiting structures are arranged in two groups, and the two groups of limiting structures are symmetrically arranged on the left hinge piece (3) and the right hinge piece (3) in a left-right mode.

6. A hanging ladder according to claim 1, characterized in that: the locking structure comprises an elastic locking piece, wherein the elastic locking piece is arranged corresponding to a first locking hole (4) and a second locking hole (5) which are formed in the hinge piece (3); wherein, when the elastic locking piece is inserted into the first locking hole (4), the elastic locking piece corresponds to the opening state of the pedal (2); when the elastic locking piece is inserted into the second locking hole (5), the elastic locking piece corresponds to the folding state of the pedal (2).

7. A hanging ladder according to claim 6, characterized in that: the elastic locking piece comprises a positioning seat (8) fixedly connected with the pedal (2), a locking needle (9) arranged corresponding to the positioning seat (8) and a spring (10); one end of the spring (10) is in abutting fit with the lock needle (9), and the other end of the spring is in abutting fit with the positioning seat (8), so that the head of the lock needle (9) keeps a movement trend of extending outwards into the locking hole;

the tail of the lock needle (9) is provided with an operating handle (11), and when the lock is unlocked, the operating handle (11) is pulled inwards, so that the lock needle (9) overcomes the elastic force of the spring (10) to displace inwards and the head of the lock needle (9) is separated from the locking hole.

8. A hanging ladder according to claim 1, characterized in that: the locking structure is provided with two groups, and the two groups of locking structures are symmetrically arranged at two hinged positions of the pedal (2) and the left and right ladder columns (1).

9. A hanging ladder according to claim 1, characterized in that: the rear end of the pedal (2) is provided with a hook (12), and the hook (12) realizes the connection of a hanging ladder and a vehicle.