CN114404828A

CN114404828A - Rescue device and aerial ladder fire truck based on ladder frame structure

Info

Publication number: CN114404828A
Application number: CN202111651717.9A
Authority: CN
Inventors: 刘宇; 陈新志; 禹源
Original assignee: Hunan Zoomlion Emergency Equipment Co Ltd
Current assignee: Hunan Zoomlion Emergency Equipment Co Ltd
Priority date: 2021-12-30
Filing date: 2021-12-30
Publication date: 2022-04-29

Abstract

The invention relates to a fire fighting facility, and discloses a rescue device based on a ladder frame structure and an aerial ladder fire truck. The rescue device based on the ladder frame structure can reduce rescue difficulty and has higher safety.

Description

Rescue device and aerial ladder fire truck based on ladder frame structure

Technical Field

The invention relates to a fire fighting facility, in particular to a rescue device based on a ladder frame structure. In addition, still relate to an aerial ladder fire engine who has above-mentioned rescue device based on ladder frame structure.

Background

With the rapid development of economic construction, the population of cities continuously increases, the land resources of the cities are increasingly tense, and the city structure gradually extends to high altitude, so that the number of high-rise buildings of the cities is continuously increased. Once a fire disaster happens, huge economic loss and great casualties can be caused, and social shock effects are caused; the super-high level forms a vertical street in a city, because of more floors, long evacuation distance and limited evacuation channels, a long time is needed for the people to evacuate from a dangerous area, and the higher the height is, the more people are, the longer the evacuation time is, and a lot of unnecessary casualties and losses are often caused.

The aerial ladder fire truck is a fire truck mainly with rescue function, and when the number of rescued people is small, people can be rescued to the ground in a mode of carrying people in a working bucket and recovering a ladder frame, and the rated load of the aerial ladder fire truck is generally 300-500kg and is about 4-6 people.

When stranded personnel are more, the efficiency of above-mentioned mode is lower, needs personnel to climb to ground from the ladder frame top, though, more people can be rescued simultaneously to this kind of mode, nevertheless, climbing in high altitude is very high to stranded personnel's psychological diathesis and physical demands.

The aerial ladder fire truck ladder frame is multilayer nested formula structure, and is different according to the maximum working height of ladder frame, and the ladder frame festival is also different. The working height of the aerial ladder fire truck at present is different from 15 meters to 60 meters. The higher the working height, the greater the height the person needs to climb. For the same aerial ladder fire truck, the higher the working height is, the larger the included angle between the arm support and the horizontal plane is, the steeper the ladder frame becomes, and the maximum included angle can reach about 75 degrees.

During the climbing, along with from the high altitude downstream, the width of ladder frame is bigger and bigger, because the ladder frame is half open type ladder frame, does not have the support behind one's back during personnel's climbing, all is huge the test to adaptability, physical power and the psychological diathesis of personnel. The aerial ladder fire truck is influenced by the ladder frame structure, the climbing difficulty of the aerial ladder fire truck is high, and the safety is poor.

Disclosure of Invention

The invention aims to provide a rescue device based on a ladder frame structure, which can reduce rescue difficulty and has higher safety.

The invention further aims to solve the technical problem of providing the aerial ladder fire truck which can reduce rescue difficulty and has higher safety.

In order to solve the technical problem, a first aspect of the invention provides a rescue device based on a ladder frame structure, which comprises a slide way mechanism, wherein the slide way mechanism comprises a plurality of sections of slides which are sequentially connected in a telescopic manner, the slides are groove-shaped slide ways with open upper ends, and a sliding speed control mechanism for controlling sliding speed is arranged on the open upper ends of the slides.

Optionally, a guide mechanism is arranged between adjacent slides.

Specifically, the guide mechanism comprises a guide rail arranged on one of the two adjacent slides and a guide block matched with the guide rail on the other slide.

Optionally, a limiting mechanism is further arranged between the adjacent slides.

Specifically, the limiting mechanism is a limiting plate arranged in the guide rail.

Optionally, the top end of the slideway mechanism is provided with a ladder top fixing piece.

Furthermore, the bottom end of the slide way mechanism is provided with a ladder bottom limiting piece.

Optionally, the slide speed control mechanism is a damper arranged at an upper end opening of the slide.

Specifically, the damping member is a damping elastic rope.

Optionally, a hauling rope interface is arranged at the bottom end of the slideway mechanism.

Optionally, the slide is a slotted slide formed from a sheet structure.

The aerial ladder fire truck comprises the rescue device based on the ladder frame structure, the slide is abutted against the ladder frame of the aerial ladder fire truck, so that the amplitude angle of the slide way mechanism is the same as that of the ladder frame.

Through the technical scheme, the multi-section slide is connected in a telescopic mode, when a high-rise building is in a fire, the telescopic length of the multi-section slide can be adjusted according to the height of a floor, the slide is a groove-shaped slide, trapped people can conveniently slide to a safe position from the slide, the trapped people do not need to climb the aerial ladder, the requirements on the adaptability, physical strength, psychological quality and the like of the trapped people are low, the problems that the trapped people are difficult to climb and poor in safety in the prior art are effectively solved, and the trapped people can be rapidly and safely rescued.

Additional features and advantages of the invention will be set forth in the detailed description which follows.

Drawings

The following drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the scope of the invention. In the drawings:

fig. 1 is one of schematic perspective views of a rescue apparatus based on a ladder frame structure according to an embodiment of the present invention;

fig. 2 is a second perspective view of a rescue apparatus based on a ladder frame structure according to an embodiment of the present invention;

fig. 3 is a partially enlarged view of a portion a in fig. 2;

fig. 4 is a schematic structural view of a rescue apparatus based on a ladder frame structure in an embodiment of the present invention;

FIG. 5 is a schematic perspective view of a guide mechanism according to an embodiment of the present invention;

fig. 6 is one of application diagrams of a rescue apparatus based on a ladder frame structure in an embodiment of the present invention;

fig. 7 is a second schematic view of the rescue apparatus based on the ladder frame structure according to the embodiment of the present invention.

Description of the reference numerals

1 slide 2 slide speed control mechanism

31 guide rail 32 guide block

4 top of a ladder mounting 5 ladder end stop

6 traction rope interface

Detailed Description

The following detailed description of the present invention is provided in conjunction with the accompanying drawings, and it is to be understood that the detailed description is provided for purposes of illustration and explanation and is not intended to limit the scope of the invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; either directly or indirectly through intervening media, either internally or in any combination thereof. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

It should be understood that, for convenience of describing the present invention and simplifying the description, the term "top and bottom" refers to the up and down direction of the rescue device in the actual use state, and is generally the same as the lifting direction of the ladder frame of the aerial ladder fire truck, for example, the ladder top fixing member 4 is located at the top end, and the ladder bottom limiting member 5 is located at the bottom end, and similarly, the term "head and tail" refers to the similar orientation or position relation as the term "top and bottom"; the terminology is based on the orientations and positional relationships illustrated in the drawings, and is not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and is therefore not to be construed as limiting the invention; also, the directional terms of the ladder frame structure-based rescue apparatus of the present invention should be understood in conjunction with the actual installation state.

Referring to fig. 1 to 7, the rescue apparatus based on a ladder frame structure according to the basic embodiment of the present invention includes a slide mechanism, the slide mechanism includes a plurality of sections of slides 1 which are sequentially connected in a telescopic manner, the slides 1 are groove-shaped slides with an open upper end, when a fire breaks out in a high-rise building, the slide mechanism can adjust the telescopic length according to the length of the ladder frame of a fire engine, so that trapped persons can slide to a safe position along the slide formed by the slides 1 which are sequentially connected, the physical strength of the trapped persons can be saved, the psychological quality of the trapped persons is not required to be high, the rescue apparatus has high adaptability, and the slide speed control mechanism 2 for controlling the slide speed is provided with the open upper end of the slide 1, the slide speed of the trapped persons can be controlled, the safety is high, the operation is more convenient, and the problem that the scaling ladder in the prior art is difficult is effectively solved, poor safety and the like.

In fig. 4, the cross section of the slide 1 is a semicircular cross section, but it is understood that the slide 1 may have other cross-sectional shapes, such as a rectangular cross section, and various structural shapes in which both sides of the bottom surface are semicircular. Further, the slide 1 can be made of thin plates, which means 6mm or less plates, for example, the slide 1 has a plate thickness of 2mm and a length of 2.5m, and after the multiple layers of slides 1 are stacked, the slide is used as a rescue device, so that the device occupies a small space as a whole, and is convenient to store and transport.

It should be noted that the rescue device based on the ladder frame structure of the invention is mainly used in combination with an aerial ladder fire truck, and when in use, the rescue device based on the ladder frame structure needs to be fixed on the ladder frame of the aerial ladder fire truck, so that the slide way mechanism can do telescopic motion along with the extension and retraction of the ladder frame of the aerial ladder fire truck. It can be understood that the rescue device based on the ladder frame structure of the invention is not limited to be applied to aerial ladder fire trucks, and can also be used in combination with other equipment with a telescopic boom, for example, the rescue device based on the ladder frame structure of the invention is fixed on a lifting boom of a crane, so that a slide way mechanism can do telescopic motion along with the telescopic motion of the lifting boom.

In a specific embodiment, referring to fig. 2, a top fixing member 4 may be provided at the top end of the slide way mechanism, that is, a top fixing member 4 may be provided at the lower surface of the top end of the section of slide 1 located at the top of the slide way mechanism so as to be fixedly connected with the ladder bars of the ladder rack on the aerial ladder fire truck. Fig. 2 shows a specific structure form of the ladder top fixing member 4, and the ladder top fixing member 4 is in a semicircular hook structure; it can be understood that the ladder top fixing member 4 may also be other structures capable of realizing the fixed connection function, for example, the ladder top fixing member 4 may be a connecting plate extending out of the slide 1, a through hole is provided on the connecting plate, correspondingly, a through hole is correspondingly provided on the ladder frame on the aerial ladder fire truck, and the two are fixedly connected through bolts, pins, etc.; or, ladder top mounting 4 can be for stretching out the plug-in components of slide 1, correspondingly, the through-hole that also correspondingly sets up on the ladder frame on the aerial ladder fire engine, and the mode that inserts the through-hole on the ladder frame on the aerial ladder fire engine through ladder top mounting 4 realizes both fixed connection.

Further, referring to fig. 3, the bottom end of the slide way mechanism may also be provided with a ladder bottom stopper 5, that is, the lower surface of the bottom end of the section of slide 1 located at the bottom of the slide way mechanism is provided with the ladder bottom stopper 5 so as to be fixedly connected with a ladder stop rod of a ladder rack on the aerial ladder fire truck; connect slide mechanism respectively through ladder top mounting 4 and ladder end spacing piece 5 with the head and the tail end of the ladder frame on the aerial ladder fire engine, can firmly install the ladder frame on the aerial ladder fire engine with slide mechanism, in the use, can not take place great rocking, have better stability, can further ensure the security that stranded personnel slided in each section slide 1, simultaneously, help stabilizing stranded personnel's state in mind. Wherein, fig. 3 shows a specific structure form of the ladder bottom limiting piece 5, and the ladder bottom limiting piece 5 is in a semicircular hook structure; it can be understood that the ladder bottom limiting piece 5 can also be of other structures capable of realizing the fixed connection function, for example, the ladder bottom limiting piece 5 can be a connecting plate extending out of the slide 1, a through hole is arranged on the connecting plate, correspondingly, a through hole is correspondingly arranged on a ladder frame on the aerial ladder fire truck, and the ladder bottom limiting piece and the connecting plate are fixedly connected through bolts, pins and the like; or, the stopper 5 at the bottom of the ladder can be for stretching out the plug-in components of slide 1, correspondingly, the through-hole that also correspondingly sets up on the ladder frame on the aerial ladder fire truck, realize both fixed connection through the mode that the stopper 5 at the bottom of the ladder inserted the through-hole on the ladder frame on the aerial ladder fire truck.

In addition, referring to fig. 3, the bottom end of the slide way mechanism may also be provided with a traction rope interface 6, that is, the traction rope interface 6 is arranged on the lower surface of the bottom end of a section of slide 1 at the bottom of the slide way mechanism, on one hand, when the ladder frame on the aerial ladder fire truck is telescopic, the traction rope can be bound on the traction rope interface 6, and the traction rope is pulled to make each slide 1 relatively slide and extend, so that the slide way mechanism covers the climbing space of the whole ladder frame; on the other hand, after the ladder frame stretches out to the assigned position, through pulling the haulage rope, make the ladder bottom stop 5 that is located the bottom fixed with the ladder rail pole of a section of ladder of the tail end of ladder frame to realize whole rescue device's based on ladder frame structure fixed.

In order to ensure that when the sections of slide 1 inside the rescue device slide, each section of slide 1 does not loosen and rotate relatively, referring to fig. 5, a guide mechanism may be arranged between adjacent slide 1. Specifically, the guide mechanism may include a guide rail 31 and a guide block 32, and the length of the guide block 32 is not necessarily equal to the length of the slide 1, and only needs to have a certain size, and is arranged along the length direction of the slide 1, so that the guide rail 31 and the guide block 32 can relatively slide along a certain direction. A guide rail 31 is arranged on one section of slide 1, and a guide block 32 is arranged at a corresponding position on the other section of slide 1 adjacent to the section of slide 1, so that the adjacent slides 1 can slide relatively. Alternatively, the guiding mechanism may also adopt other structures capable of realizing relative sliding between adjacent slides 1, for example, a way that a roller is matched with a guide rail structure. Fig. 5 shows a specific embodiment that a semicircular notch is adopted as the guide rail 31, and the guide rail 31 may adopt a structure such as a square notch, an embedded flange, and the like; correspondingly, the guide block 32 takes the form of a structure cooperating with the guide rail 31.

Further, in order to limit the relative sliding distance between the adjacent slides 1 and prevent the adjacent slides 1 from being separated from each other, a limiting mechanism may be disposed between the adjacent slides 1 for limiting the relative sliding distance between the adjacent slides 1. Specifically, can be at the limiting plate in guide rail 31, the limiting plate generally can set up at the end of guide rail 31, and promptly after slide 1 stretches out adjacent slide 1 completely, the limiting plate is inconsistent with guide block 32, through limiting plate and guide block 32 interact, the realization is restricted the relative gliding maximum distance between adjacent slide 1. Alternatively, the limiting mechanism may be another maximum distance capable of limiting the relative sliding between the adjacent slides 1, for example, a limiting protrusion may be provided at the end of the guide rail 31, or the size of the end of the guide rail 31 may be reduced.

As a specific structure of the slip speed control mechanism 2, referring to fig. 2, the slip speed control mechanism 2 may be a damping member disposed at an upper end opening of the slide 1, the number of the damping member being selected as needed. Specifically, the damping member may be a damping elastic cord such as an elastic cord made of a thermoplastic elastomer, various special saturated rubbers which are not vulcanized with sulfur, or the like. Or, the sliding speed of the trapped person can be controlled by arranging a pulley at the head of the ladder frame, using an elastic rope and controlling one end of the pulley by a fireman and binding the other end of the pulley on the body of the trapped person; or, the sliding speed control mechanism 2 may also adopt other structures capable of realizing the speed reduction in the sliding process, for example, elastic members may be arranged on both sides of the upper end opening of the slide 1, the elastic members may be made of thermoplastic elastomers, various special saturated rubbers which are not vulcanized by sulfur, etc., the elastic members protrude a certain size from the upper end opening of the slide 1, and when the sliding speed of the trapped person is fast, the trapped person may be reduced by touching the elastic members with upper limbs or lower limbs; alternatively, a number of projections may be provided on the inner surface of the slide 1, which may be made of thermoplastic elastomer, various special saturated rubbers which are not sulfur-vulcanized, etc. for slowing down the sliding speed of the trapped person, but in this way, there is a risk of injury to the person due to the projections having a certain hardness.

Referring to fig. 6 and 7, the rescue apparatus based on the ladder frame structure of the present invention is generally used in conjunction with an aerial ladder fire truck, in which a traveling wheel, a front leg and a rear leg are provided at the lower part; a rotary disc is arranged on the fire engine body 3, and a platform is arranged on the rotary disc; the platform is provided with a fixed support, the upper part of the fixed support is fixed with a telescopic ladder frame, and the telescopic ladder frame adopts the existing hydraulic transmission and control. The rescue device based on the ladder frame structure can be placed on a platform or other positions of an aerial ladder fire truck in a contraction state and can move along with the movement of the aerial ladder fire truck.

When dangerous conditions such as high-rise building conflagration take place, hang slide mechanism on the ladder shelves pole of ladder frame prelude festival ladder of aerial ladder fire engine through its top ladder top mounting 4, with the haulage rope and the haulage rope interface connection of slide mechanism bottom, along with the extension of the ladder frame of aerial ladder fire engine, stretch out through each slide 1 of haulage rope pulling, make slide mechanism cover the climbing space of whole ladder frame. After the ladder frame stretches out to the assigned position, through pulling the haulage rope, make the ladder end stop 5 of slide mechanism bottom fixed with the ladder rail of a section of ladder frame afterbody of aerial ladder fire engine to realize whole device's fixed. Stranded personnel can slide to safe position along the slide that each slide 1 expandes to form, and when sliding, the ladder frame becomes width of cloth angle difference, and gliding speed is different, and when speed was too fast, stranded personnel can stir high damped elasticity rope through lifting up both hands, form reverse acting force to slide to safe position steadily with sliding speed control in reasonable speed. When the trapped people are more, the quick rescue work can be realized.

Through above-mentioned technical scheme, in the use, each slide 1 tightly depends on with the climbing face of ladder frame, has the angle of becoming width of cloth the same with the ladder frame, but make full use of ladder frame's slope effect, stranded personnel when using, can follow the climbing mode that hands and feet used together and become like the mode of sitting the slide, can be very big save physical power, bring good use and experience, simultaneously, be close to the enclosed structure and can provide better security experience for stranded personnel. Moreover, the sliding speed can be adjusted by trapped people according to the amplitude angle of the ladder frame, the safety is higher, the operation is more convenient, and the combination of the self angle of the ladder frame and the high-damping elastic rope is utilized, so that the ladder frame can be quickly and safely rescued in any postures. The slide way mechanism can stretch out and draw back different lengths according to the length of the ladder frame and is reliably fixed with the ladder frame, the self difficulty and the body requirement of trapped personnel during rescue of a fire fighting truck are improved, and the rescue efficiency is greatly improved. The slide 1 can be made of metal sheet parts, such as aluminum alloy sheets, steel sheets and the like, to form a nested slide structure consisting of a series of sheets, the length of the device can be adjusted according to the telescopic length of the ladder frame, and the slide guide rail is formed by the forming process of the structure; the distance between each section of slide is very little, and the structure is fairly compact, even if the space that occupies when the festival is many is also very little, conveniently carries on the fire engine. Effectively solved among the prior art scheme scaling ladder be difficult to the climbing, the poor technical problem of security.

The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are within the protective scope of the present invention.

It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. The invention is not described in detail in order to avoid unnecessary repetition.

In addition, any combination of the various embodiments of the present invention is also possible, and the same should be considered as the disclosure of the present invention as long as it does not depart from the spirit of the present invention.

Claims

1. The utility model provides a rescue device based on ladder frame structure, its characterized in that includes slide mechanism, slide mechanism includes multisection scalable continuous slide (1) in proper order, slide (1) is its upper end open cell type slide, just the uncovered smooth speed control mechanism (2) that are used for controlling the speed of sliding that are provided with in the upper end of slide (1).

2. The ladder frame structure-based rescue apparatus according to claim 1, wherein a guide mechanism is provided between adjacent slides (1).

3. Ladder frame structure based rescue apparatus according to claim 2, characterized in that the guiding mechanism comprises a guide rail (31) arranged on one of the two adjacent slides (1) and a guide block (32) cooperating with the guide rail (31) on the other.

4. Rescue apparatus based on a ladder frame structure according to claim 3, characterized in that a limiting mechanism is also arranged between adjacent slides (1).

5. The ladder frame structure-based rescue apparatus according to claim 4, wherein the limiting mechanism is a limiting plate disposed in the guide rail (31).

6. The ladder frame structure-based rescue apparatus according to any one of claims 1 to 5, characterized in that the top end of the ramp mechanism is provided with a ladder top fixing (4).

7. The ladder frame structure-based rescue apparatus according to claim 6, wherein the bottom end of the slide mechanism is provided with a ladder bottom stopper (5).

8. The ladder frame structure-based rescue apparatus according to any one of claims 1 to 5, wherein the slide speed control mechanism (2) is a damper disposed open at an upper end of the slide (1).

9. The ladder frame structure-based rescue apparatus as claimed in claim 8, wherein the damping member is a damping elastic rope.

10. The ladder frame structure-based rescue apparatus according to any one of claims 1 to 5, characterized in that the bottom end of the slide mechanism is provided with a pull rope interface (6).

11. The ladder frame structure-based rescue apparatus according to any one of claims 1 to 5, characterized in that the slide (1) is a slotted slide formed by a thin plate structure.

12. Aerial ladder fire truck, characterized in that it comprises a ladder frame structure-based rescue apparatus according to any one of claims 1 to 11, the slide (1) abutting against the ladder frame of the aerial ladder fire truck such that the ramp mechanism has the same luffing angle as the ladder frame.