CN108999561B

CN108999561B - Novel roll-up formula couple ladder

Info

Publication number: CN108999561B
Application number: CN201710417443.4A
Authority: CN
Inventors: 朱曾华
Original assignee: Sichuan Lingge Zhizao Technology Co ltd
Current assignee: Sichuan Lingge Zhizao Technology Co ltd
Priority date: 2017-06-06
Filing date: 2017-06-06
Publication date: 2023-12-12
Anticipated expiration: 2037-06-06
Also published as: CN108999561A

Abstract

The invention discloses a novel winding type hook ladder, which relates to the related field of fire rescue equipment and comprises two parallel ladder arms (1), wherein a plurality of rungs (2) perpendicular to the ladder arms (1) are arranged between the two ladder arms (1), hooks (3) are arranged at the top ends of the ladder arms (1), and in an unused state, the cross section of each ladder arm (1) is of a planar structure and can be wound around a central line parallel to the rungs (2); in a use state, the ladder arm (1) is curled into a cylindrical structure with a notch (10), and the notch (10) penetrates through the whole length of the ladder arm (1). The hook ladder arm is made of a composite PVC material with a shape memory function, and has the characteristic of light weight. When not in use, the hook ladder can be rolled together, so that the storage space is greatly saved, and the carrying is convenient; when in use, the ladder arms are curled into a cylinder with a notch, and the whole hook ladder is supported, so that the hook ladder can be erected from bottom to top.

Description

Novel roll-up formula couple ladder

Technical Field

The invention relates to a hook ladder for firefighting rescue, in particular to a winding hook ladder.

Background

In recent years, with the rapid development of social economy, fire fighting forces are increasingly responsible for fire extinguishment, rescue, security and maintenance tasks. The fire ladder is a low-altitude ascending operation device commonly used by fire troops in fire fighting, rescue and daily training, has strong maneuverability, can effectively improve the escape effect and the fire extinguishing efficiency of a fire scene, reduces casualties and national property loss, has high use frequency and good rescue effect, and is widely applied to the fire troops.

The existing fire-fighting ladder equipped by fire-fighting forces mainly comprises: the fire-fighting and lifesaving device has the advantages that the fire-fighting and lifesaving device is characterized in that a fire-fighting ladder can be quickly erected according to conditions to open fire-fighting and lifesaving channels after a firefighter arrives at a rescue site, namely, the two sections of the fire-fighting ladder are 6 m, the 3 sections of the aluminum alloy of the 15 m are pulled, the fire-fighting ladder is hooked, the horizontal bar ladder is the like, and the fire-fighting ladder has the characteristics that: the device has the advantages of large volume, heavy weight, incapability of folding, requirement of operation by multiple persons, capability of being used as a vehicle-mounted device and being capable of being transported on a vehicle roof, easiness in corrosion deformation and performance reduction (except an aluminum alloy ladder, bamboo materials are adopted).

The fire hose ladder can be rolled, is small in size and convenient to carry, but can only be used after being fixed above an evacuation channel, and can not be erected from the lower part by a firefighter, so that the fire hose is narrow in application range. Therefore, the hook ladder which is small in size, convenient to carry and capable of being erected from the lower part of the evacuation channel is sought, and has important significance.

Disclosure of Invention

Based on the above, the invention provides a novel retractable hook ladder, which is a mechanical work integrating a composite PVC ladder arm, an aluminum alloy ladder pedal, hooks and supporting feet.

The invention is realized by the following technical scheme:

a novel furling hook ladder comprises two parallel ladder arms, a plurality of rungs perpendicular to the ladder arms are arranged between the two ladder arms, and hooks are arranged at the top ends of the ladder arms. The ladder arm is made of a composite PVC material with a shape memory function. In the unused state, the cross section of the ladder arm is of a plane structure and can be rolled around a central line parallel to the rungs; in the use state, the ladder arm is curled into a cylindrical structure with a notch, and the notch penetrates through the length of the whole ladder arm.

Further, the notch is arranged in a direction towards one side of the rung.

Further, the central angle of the notch is 30-45 degrees.

Further, in order to increase the stability of the hook ladder during use, the hook ladder further comprises support feet which are arranged in pairs, and the support feet are arranged on the end faces of the rungs facing the direction of the hooks.

Further, as a preferred solution, the support feet are hinged to the rung end surfaces. When the hook ladder is used, the supporting feet are stretched to be in an angle state of 90 degrees with the ladder steps; when not in use, the supporting feet are rotated to be parallel to the rungs.

The beneficial effects of the invention are as follows:

1. the hook ladder arm is made of a composite PVC material with a shape memory function, and has the characteristic of light weight. When not in use, the hook ladder can be rolled together, so that the storage space is greatly saved, and the carrying is convenient; when in use, the ladder arms are curled into a cylinder with a notch, and the whole hook ladder is supported, so that the hook ladder can be erected from bottom to top.

2. The hinged supporting legs are designed, when the ladder is not used, the ladder can be folded to be parallel to the rungs, and the ladder is convenient to roll; when the ladder is used, the supporting legs are unscrewed, so that the ladder is prevented from being too close to the wall body to influence climbing; in addition, the ladder has certain toughness and elasticity after being unfolded, and the supporting feet are convenient for firefighters to erect.

Drawings

FIG. 1 is a schematic view of the present invention in use;

FIG. 2 is an enlarged schematic view of portion A of FIG. 1;

FIG. 3 is a schematic cross-sectional view of the ladder arm of the present invention in use;

FIG. 4 is a partial schematic view of the invention after flattening (with hooks and most ladder arms omitted);

FIG. 5 is a schematic view of the present invention after being rolled (with hooks and support legs omitted);

in the figure: 1-ladder arm, 10-ladder arm notch, 10 a-notch angle, 2-ladder pedal, 3-hook and 4-supporting leg.

Detailed Description

The invention is further described with reference to the drawings and detailed description.

The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.

As shown in fig. 1 to 5, the embodiment discloses a novel winding type hook ladder, which comprises two parallel ladder arms 1, wherein a plurality of rungs 2 perpendicular to the ladder arms 1 are arranged between the two ladder arms 1, and hooks 3 are arranged at the top ends of the ladder arms 1; in the use state, the ladder arm 1 can be curled into a cylindrical structure with a notch 10, and as shown in fig. 1, the notch 10 penetrates through the whole length of the ladder arm 1.

As a preferable scheme in the embodiment, the notch 10 is opened towards one side of the rung 2; the central angle 10a of the notch 10 is 30-45 degrees.

As a preferred solution in this embodiment, it also comprises pairs of hinged support feet 4, said support feet 4 being arranged on the end face of the rung 2 facing the hanger 3. When the hook ladder is used, the supporting feet 4 are stretched to form an angle of 90 degrees with the rungs 2; when not in use, the support feet 4 are rotated to be parallel to the rungs 2.

The hook ladder arm is made of a composite PVC material with a shape memory function, so that the hook ladder arm has the characteristic of light weight. When not in use, the hook ladder can be rolled together, so that the storage space is greatly saved, and the carrying is convenient; when in use, the ladder arms are curled into a cylinder with a notch, and the whole hook ladder is supported, so that the hook ladder can be erected from bottom to top.

The above embodiments are only preferred embodiments of the present invention, and are not limiting to the technical solutions of the present invention, and any technical solution that can be implemented on the basis of the above embodiments without inventive effort should be considered as falling within the scope of protection of the patent claims of the present invention.

Claims

1. The utility model provides a novel roll-up formula couple ladder, includes two parallel ladder arms (1), sets up a plurality of and ladder arm (1) vertically ladder steps (2) between two ladder arms (1), and ladder arm (1) top is provided with couple (3), its characterized in that: in the unused state, the cross section of the ladder arm (1) is of a plane structure and can be rolled around a central line parallel to the rungs (2); in a use state, the ladder arm (1) is curled into a cylindrical structure with a notch (10), the notch (10) penetrates through the length of the whole ladder arm (1), the opening direction of the notch (10) faces one side of the ladder pedal (2), and the central angle (10 a) of the notch (10) is 30-45 degrees; the ladder arm (1) is made of a composite PVC material with a shape memory function.

2. A new type furling type hook ladder as claimed in claim 1, further comprising a pair of supporting feet (4), wherein the supporting feet (4) are arranged on the end face of the rung (2) facing the direction of the hook (3).

3. A new type of winding hook ladder as claimed in claim 2, characterized in that the support feet (4) are hinged to the end faces of the rungs (2).