KR20130004698A - Aerial ladder truck - Google Patents

Abstract

PURPOSE: An aerial ladder truck is provided to prevent accidents caused by the malfunction of an extendable ladder and to prevent the extendable ladder from being arbitrarily extended. CONSTITUTION: An aerial ladder truck comprises a vehicle, a base frame, an extendable ladder, and a safety device. The base frame is installed at the rear of a cockpit of the vehicle. The extendable ladder is rotatably coupled to the top of the base frame and is vertically rotated using an angle regulating cylinder. The safety device maintains the extended or contracted state of the extendable ladder and comprises multiple safety devices, photographing devices(230), and a display device(240). The safety devices have stopping levers(211). The photographing devices photograph the operation state of the safety devices. The display device displays the photographed images.

Description

Elevated Ladder Truck {Aerial Ladder truck}

The present invention relates to an elevated ladder vehicle, and more particularly, to an elevated ladder vehicle configured to enable the extension ladders to be extended or shortened in multiple stages to be safely maintained and to check the safety state using a camera and a monitor. will be.

In general, an elevated ladder truck is mainly used when a high building such as an apartment building or a fire breaks out or when working in the air.

The use of the elevated ladder continues to increase as high-rise buildings steadily increase due to the development of industrial society or the concentration of population in large cities.

Conventional high ladder cars are mainly provided with a telescopic ladder on the base frame installed in the rear of the passenger seat of the vehicle, the ladder ladder is overlapped in a state that the plurality of ladders slide to each other to extend or shorten the length in multiple stages To be combined.

The stretched ladder has a hydraulic cylinder capable of drawing in or drawing out a multi-stage ladder which is located in the inner side from a fixed ladder located at the outermost side and stretches into a multi-stage, and the length of the multi-stage ladder is extended when the multi-stage ladder is pulled out. In order to shorten the length, a plurality of wire ropes of steel wires connecting the multi-step ladders are installed.

The conventional ladder ladder constructed as described above has a safety device for such a dangerous situation in spite of being directly connected to a large accident when the wire rope is cut during use due to age or overload of the wire rope. Therefore, it is necessary to prepare countermeasures.

The present invention has been made in view of the above point, when the extension ladder is maintained in the extended or shortened state, each stage is installed to stop the movement so as not to be stretched arbitrarily stretched and the operating state of the stop lever is taken by the camera and transmitted to the monitor Therefore, it is possible to prevent accidents due to the failure of the new ladder, and to provide an expensive ladder car that can easily observe the safety status, its purpose is to provide.

The elevated ladder car proposed by the present invention is an angle in a state in which a vehicle, a base frame installed at a rear side of the vehicle seat, and a length is extended or shortened in multiple stages and one end portion is rotatably coupled to an upper side of the base frame. It includes an extension ladder which is rotated up and down in a state in which a predetermined angle with the base frame is maintained by using an adjustment cylinder, and an extension safety unit for maintaining the extended or shortened state and monitoring the state.

The new safety department A plurality of safety devices installed at the end portions of the other ends except for the last end of the stretched ladder and provided with a stop lever for locking or releasing an interlock to prevent movement of an adjacent next step; And a plurality of photographing apparatuses respectively installed to photograph the operation state of the apparatus, and a display apparatus installed to view an image photographed by the photographing apparatus.

And the present invention further comprises a plurality of outriggers are installed so that the length is stretched in multiple stages from the front and rear of the base frame to the left and the right, and the weight-weighted member is connected to the outrigger and fixed using a weight body It is also possible to include.

According to the high-ladder according to the present invention, the expansion ladder is arbitrarily stretched due to breakage or sagging of the wire used when the extension ladder is extended and shortened by the installation of a safety device for safely maintaining the extension or shortening state. It is possible to prevent accidents during aerial work and to prevent the extension ladders from being taken out while moving.

And according to the high ladder according to the invention, since the operating state of the safety device is photographed by the camera and transmitted to the monitor, it is possible to easily and conveniently observe the safety state when shortening or extending the extension ladder.

In addition, according to the high-ladder according to the present invention, since a large weight is applied to the outrigger by the installation of a weight-weighted member in the outrigger, the flow or conduction of the vehicle when extending the extension ladder for firefighting work, etc. It is possible to work in a stable state from a high-rise building to a high-rise building with a reduced concern.

In addition, according to the high ladder according to the present invention, since the weight weighting member is made of a plurality of unit weight members, it is possible to adjust the weight according to the standard, the working height, and the like of the vehicle, thereby improving the utility and portability.

Furthermore, according to the elevated ladder vehicle according to the present invention, since the position of the center of rotation of the extension ladder can be moved toward the center of the base frame, it is possible to be supported in a more stable state than being located at the rear of the base frame when the ladder body is extended and operated. Do.

1 is a side view showing an embodiment of a high ladder according to the invention.
Figure 2 is a side view of the use state showing an embodiment of an elevated ladder according to the invention.
Figure 3 is a perspective view showing a stretch ladder in one embodiment of a high ladder according to the invention.
Figure 4 is a side view showing a stretch ladder in one embodiment of a high ladder according to the invention.
Figure 5 is a partially enlarged view showing a ladder in an embodiment of a high ladder according to the invention.
Figure 6 is a side view showing a new safety unit in one embodiment of a high ladder according to the invention.
7 is a sectional view taken along the line AA in Fig.
Figure 8 is a cross-sectional view according to Figure 7 showing the operating state of the new safety section in one embodiment of a high ladder according to the invention.
Figure 9 is a partially enlarged view showing the operating state of the new safety section in one embodiment of a high ladder according to the invention.
Figure 10 is a side cross-sectional view showing a stretch safety in an extended state in one embodiment of an elevated ladder vehicle according to the present invention.
11 is a plan view showing an expansion safety unit in an extended state in one embodiment of an elevated ladder vehicle according to the present invention.
12 is a plan view showing an expansion and contraction safety portion in a shortened state in one embodiment of an elevated ladder vehicle according to the present invention.
13 is a plan view showing a state in which a locking hole is formed in the ladder body in one embodiment of an elevated ladder vehicle according to the present invention.
14 is a cross-sectional view taken along line BB of FIG. 12.
15 is a plan view showing a state in which the engaging portion is installed in the ladder body in one embodiment of an elevated ladder vehicle according to the present invention.
Figure 16 is a cross-sectional view showing a locking state of the new safety section in one embodiment of an elevated ladder vehicle according to the present invention.
Figure 17 is a cross-sectional view showing an unlocked state of the new safety section in one embodiment of the elevated ladder according to the invention.
18 is a side view showing another embodiment of the elevated ladder according to the invention.
19 is a plan view showing another embodiment of the elevated ladder according to the invention.
20 is a rear view showing another embodiment of the elevated ladder according to the present invention.
21 is a plan view illustrating a state in which an outrigger is extended and supported on a floor in another embodiment of an elevated ladder vehicle according to the present invention.
22 is a rear view illustrating a state in which the outrigger is extended and supported on the floor in another embodiment of the elevated ladder vehicle according to the present invention.
23 is a partial cross-sectional side view showing an outrigger and a weight weighting member in another embodiment of the high ladder according to the present invention.
24 is a side view showing the installation state of the unit weight member in another embodiment of the elevated ladder according to the present invention.
25 is a rear view showing the weight weighting member of the "b" shape in another embodiment of the elevated ladder according to the present invention.
26 is a side view showing another embodiment of the elevated ladder according to the invention.
27 is a partially enlarged view showing still another embodiment of an elevated ladder according to the present invention.
28 is a cross-sectional view taken along the line CC of FIG. 27.

Next, a preferred embodiment of the elevated ladder according to the present invention will be described in detail with reference to the drawings.

First, an embodiment of the elevated ladder vehicle according to the present invention, as shown in Figures 1 and 2, the base frame 20, which is installed on the rear side of the vehicle 10, the passenger seat 12 of the vehicle 10, Stretch ladder 100 is installed on the upper side of the base frame 20, and the extension of the stretch ladder 100 is made to include a stretch safety device 200 for maintaining the state of extension or shortening and monitoring the state. .

The vehicle 10 is provided with a passenger seat 12, which allows the driver to ride and drive, and a cargo vehicle such as a truck having only a vehicle body 14 without a loading box behind the passenger seat 12 may be used. It is also desirable to use a trailer capable of carrying a significant weight and making it moveable as needed for high floor applications.

The base frame 100 has a substantially plate shape and is fixedly installed on the vehicle body 14 at the rear side of the passenger seat 12 of the vehicle 10.

The stretchable ladder 100 is multi-stage lengthened or shortened and one end portion is rotatably coupled to the upper side of the base frame 20 by using the angle adjusting cylinder 160 and the base frame 20 It is installed to rotate in the vertical direction while maintaining a certain angle.

The stretchable ladder 100 can be generally implemented in the same configuration as a stretch ladder commonly used in firefighting ladders or cargo transport ladders, aerial ladders.

For example, as shown in FIGS. 3 to 5, the stretchable ladder 100 is rotatably supported at one end of the base frame 20 by using the angle adjusting cylinder 160. A ladder body 120 which is formed of a fixed ladder 121 rotated up and down from an angle of 20) and a multi-step ladder 122 inserted into the fixed ladder 121 and slidably mounted in multiple stages; The inside of the fixed ladder 121 using the length adjusting cylinder 130 and the length adjusting cylinder 130 connecting the fixed ladder 121 and the multi-step ladder 122 of the ladder body 120. It comprises a plurality of wire member 140 which is installed to extend the length of the multi-step ladder 122 and shorten the length by pulling inward as the multi-step ladder 122 to the outside.

Each end of the ladder body 120 is formed in a long and wide plate shape, a pair of vertical frame 120a which is installed in a state lying parallel to each other at a predetermined interval and laid down, and the pair of vertical frame 120a It is possible to include a plurality of horizontal frame (120b) connecting the at regular intervals.

The vertical frame 120a may be installed in the form of a handrail. That is, as shown in Figure 5, it may be composed of a pair of end bars (120c) provided at regular intervals up and down, and a plurality of connection bars (120d) for connecting the end bars (120c) at regular intervals.

The stretchable ladder 100 may be installed to be pivotable in the horizontal direction at the same time can be adjusted up and down as described above.

For example, it is also possible to install a rotatable pivot table 90 on the base frame 20 and to install the stretchable ladder 100 on the pivot table 90.

Although not shown in the figure, the swing table 90 is rotated by using a power such as an actuator.

Since the revolving table 90 can be generally implemented in the same configuration as that of the revolving table widely used in high-priced ladder cars, detailed description thereof will be omitted.

The stretchable ladder 100 may be further provided with a bogie 150 configured to be movable up and down along the longitudinal direction of the ladder body 120 and configured to carry cargo or burn a person.

Since the trolley 150 may also be generally implemented in the same configuration as the trolley widely used in an expensive ladder truck, detailed description thereof will be omitted.

The new safety unit 200 As shown in Figure 6 and 7, the longitudinal movement of the next stage adjacent to each other and installed at the extending end of the remaining stage except for the last stage (last stage of the multi-step ladder 122) of the ladder body 120 A plurality of safety devices 210 having a stop lever 211 installed therein to lock the doors or to release the barriers to a movable release state, and to photograph the operating states of the safety devices 210. And a plurality of photographing apparatuses 230, and a display apparatus 240 installed to view an image photographed by the photographing apparatus 230.

As shown in FIGS. 8 and 9, the safety device 210 is rotatably coupled to a central portion using a hinge shaft 214 at one end of each end of the ladder body 120, and has one end. The stop lever 211 and the end of each of the ladder body 120 and the stop lever 211 is formed in the other end is blocked or blocked the next stage is located adjacent to the other end portion Piston rod 221 is installed on each of the portions and is coupled to the forward and backward movement is provided, the forward end of the piston rod 121 is the long hole 212 and the hinge shaft 224 of the stop lever 211 It comprises a cylinder 220 rotatably coupled using.

Although not shown in the figure, it is also possible to use a linear drive motor or the like instead of the cylinder (220).

As shown in FIGS. 10 to 12, the stop lever 211 has a horizontal frame 120b positioned at a shortened end of each end of the ladder main body 120 in a stretched or shortened state of the ladder main body 120. It is possible to block.

The cylinder 220 is made using a hydraulic cylinder or the like.

13 and 14 in the horizontal frame 120b, the stop lever 211 is the horizontal so as to block the movement of each step of the ladder body 120 as it passes through the interior when operating in a locked state. It is also possible to further form the through hole 120c in the frame 120b.

As shown in Figure 15, it is also possible to further install a separate engaging portion (120d) to be blocked on the stop lever 211 at the end of the shortened end of each step of the ladder body (210).

The photographing apparatus 230 is made by using a CCD camera and photographs the locked or unlocked state to the safety device 210 and transmits the photographed image to the display apparatus 240 in a wired or wireless manner in real time.

The display device 240 is formed using a monitor or the like, and the entire images captured by the plurality of photographing devices 230 are displayed at once.

The display device 240 may be installed on the upper side of the base frame 20, it may be installed in the passenger compartment 12 of the vehicle 10, and the like.

The user or the like in the state in which the piston rod 221 of the cylinder 220 is moved forward in order to be able to easily determine the locked state or the unlocked state of the safety device 210 by looking at the display device 240 When the piston rod 221 is photographed on the photographing apparatus 220 and moved backward, the position of the photographing apparatus 230 is set so that the piston rod 221 is not photographed by the photographing apparatus 230.

Therefore, the user can confirm that the piston rod 221 is in a locked state by looking at the photographed screen, and if the piston rod 221 is not visible, the user can recognize that the state is released.

Although not shown, the piston rod 221 may be provided with an identification display so that the user can more easily identify the locking or unlocking position.

In one embodiment of the elevated ladder vehicle according to the present invention configured as described above, as shown in Figure 16 and 17, the expansion safety portion 200 is the end of the piston rod 221 of the cylinder 220 is extended A first identification unit 224 installed in a portion and for identifying a locked state of the safety device 210, and extending from the first identification unit 224, and identifying an unlocked state of the safety device 210. It is also possible to further comprise a second identifying unit 226 for.

The first identification part 224 and the second identification part 226 have a substantially plate shape.

The photographing apparatus 230 is installed such that the first identifying unit 224 is photographed in the locked state and the second identifying unit 226 is photographed in the unlocked state. That is, the first identification unit 224 is positioned in front of the photographing apparatus 230 in the locked state, and the second identification unit 226 is located in front of the photographing apparatus 230 in the unlocked state.

The first identification unit 224 and the second identification unit 224 display colors and / or letters, figures, etc. so as to easily grasp the loose state.

For example, one side of the first identification unit 224 is displayed as "safe" on a yellow background, and the second identification unit 226 is displayed as "danger" on a red background.

When the first identification unit 224 and the second identification unit 226 are installed as described above, it is possible to easily determine whether the user or the like is locked or loosened by the user in the display apparatus 240.

And another embodiment of the elevated ladder according to the present invention, as shown in Figures 18 to 20, a plurality of outriggers are installed so that the length is stretched in multiple stages from the front and rear of the base frame 20 to the left and right ( 40), it is also possible to further comprise a weight-weighted member 60 is made using a weight and is connected to and fixed to the outrigger 40.

The outrigger 40 is a total of two pairs are installed, one pair each in front and rear of the base frame 20.

The outrigger 40 is a horizontal portion 41 is stretched in multiple stages in the horizontal direction in the state supported by the base frame 20, and is installed perpendicular to the last end of the horizontal portion 41 and the vertical direction As the length is stretched and the bottom end toward the bottom is made up including a vertical portion 45 is connected to the base plate in contact with the bottom when the length of the elongation.

As shown in FIG. 21, the horizontal portion 41 is formed in a substantially square pipe shape, and is horizontally fixed to the base frame 20, fixed horizontally, and having a first hydraulic cylinder 43 installed therein. It includes a horizontal extension boom 44 is slidably coupled to the inside of the horizontal fixed boom 42 and the length is stretched in one or multiple stages by sliding by using the first hydraulic cylinder (43). .

As shown in FIG. 22, the vertical portion 45 is formed in a substantially square pipe shape and is vertically installed at an end portion of the horizontal extension boom 44 that is extended and contracted with a second hydraulic cylinder. 47 is installed in the vertical fixed boom 46, the vertical fixed boom 46 is slidably coupled to the inside by sliding by using the second hydraulic cylinder 47 is stretched and the end is It includes a vertical extension boom 48 is installed the support plate 49.

The weight weighting member 60 is made of metal and is formed in a substantially bar shape.

The weight weighting member 60 is a pair of the outrigger 40 is stretched to the left from the front and rear of the base frame 20 and a pair of the outrigger 40 is stretched to the right Are connected to each other.

One of the pair of weight weighting members 60 is fixed to connect the vertical fixed boom 46 of the pair of the outrigger 40 is stretched to the left and the other is stretched to the right The vertical fixing booms 46 of the pair of the outriggers 40 are respectively connected and fixed.

Both ends of the weight weighting member 60 and the vertical fixing boom 46 are fixed integrally by welding.

Although the weight weighting member 60 is described as being integrally fixed by welding, the present invention is not limited thereto, and as shown in FIGS. 6 and 7, both ends of the weight weighting member 60 are provided. It is also possible to be detachably coupled to the vertical fixing boom 46.

For example, the vertical pinning boom 46 of the outrigger 40 is formed to be respectively provided with a coupling pin (65) protruding toward the upper, the both ends of the weight-weighting member (60) the coupling pin ( It is also possible to further form a pair of coupling holes 64 to which 65 is coupled.

The coupling pin 65 may be further formed with a male screw, and a nut 66 coupled with the male screw may be further installed.

Although not shown in the drawing, the coupling hole 64 is easily coupled to the coupling pin 65 and the vertical portion 45 of the outrigger 40 located at the front and rear as the length of the outrigger 40 is extended. In the case of the outrigger 40 is installed in the diagonal direction so that the interval between the gradually open it is possible to form a long hole so that it can be used.

In addition, the weight weighting member 60 may be formed in a substantially "a" shape, as shown in FIG. That is, the horizontal weighting portion 61 positioned above the vertical fixing boom 46 of the outrigger 40 and one end of the horizontal weighting portion 61 are bent at right angles to the lower side, and the vertical fixing boom ( It comprises a vertical weighting portion 62 located on the side of 46.

Since the weight weighting member 60 is very large, it is also possible to install the supporting member 70 on the outrigger 40.

That is, a supporting member 70 supporting the weight weighting member 60 at the lower portion of the vertical fixing boom 46 may be installed.

The supporting member 70 is connected to the lower end of the vertical fixing boom 46 at right angles, and supports the supporting plate 71 to support and support the lower portion of the weight weighting member 60, and the supporting plate ( 71 is formed to be bent upwardly at an end portion of the end portion and includes a side support plate portion 72 that surrounds and supports the side of the weight-weighting member (60).

In one embodiment of the high ladder according to the present invention, which is configured as described above, the bearing capacity is improved, and the weight of the sum of the weights of the vehicle 10, the base frame 20, the stretchable ladder 100, and the outrigger 40 and The total weight of the pair of weight weighting members 60 is installed in a weight ratio of about 1: 2 to 3.

For example, the weight of the vehicle 10, the base frame 20, the stretchable ladder 100, the outrigger 40, the sum of the weight of the vehicle is formed to 10 tons, and the weight weighting member 60 is installed Install to weight of about 10 ton per piece.

When installed in the weight ratio as described above, it is possible to maintain a stable support even in a state in which the stretched ladder 100 is extended to about 20 to 100 floors of a building.

As shown in FIG. 24, the weight weighting member 60 may include a plurality of unit weight members 61 that can be stacked on each other.

The unit weight member 61 is formed in approximately 0.05 to 2 tonnes.

In the above, the unit weight member 61 may be formed in a substantially bar plate shape.

It is also possible to form a coupling hole 62 to be coupled to the coupling pin 50 at both ends of the unit weight member 61.

In the other embodiments described above, the same configuration as that of the above-described embodiment can be employed, and thus a detailed description thereof will be omitted.

And another embodiment of the high ladder according to the invention is also made to include a ladder moving device 80 for moving the center of rotation of the stretchable ladder 100 forward, as shown in Figure 26 to 28 It is possible.

The ladder moving device 80 is formed to be formed along the front and rear direction in the upper portion of the drive motor 82, the base frame 20 and is rotatably supported by the base frame 20 and the drive motor 82 It comprises a transfer screw 84 for receiving the rotational force of the rotation and the transfer table 86 is coupled to move forward or backward during the rotation of the transfer screw 84.

The drive motor 82 is capable of precisely controlling the feed amount of the conveyance (86) using a servo motor.

The transfer screw 84 is rotatably supported by the base frame 20 and installed in parallel with the base frame 20.

The ladder moving device 80 further includes a pair of guides 88 installed at regular intervals to guide the transfer table 86 to be moved in a stable state along the front and rear directions of the vehicle 10. It is possible.

The guide 88 is fixed to the upper surface of the base frame 20, the fixed rail (88b), the fixed rail (88b) is slidably coupled and fixed to the conveyer (86) conveyer (86) It comprises a moving rail 88a moving with.

The guide 88 may also be made of a LM guide that is generally widely used.

The rotary table 90 is installed on the upper portion of the transfer table 86 or one end of the fixed ladder 121 of the ladder body 120 is rotatably coupled.

In the above-described other embodiments, the present invention may be implemented in the same manner as in the above-described embodiment or other embodiments except for the above-described configuration, and thus detailed description thereof will be omitted.

In the above description of the preferred embodiment of the elevated ladder according to the present invention, the present invention is not limited to this, but can be modified in various ways within the scope of the claims and the detailed description of the invention, the accompanying drawings. This also falls within the scope of the present invention.

10 vehicle 12 board
20: base frame 100: stretch ladder
40: Outrigger 60: Outrigger
70: support member 80: ladder moving device
90: turning table 100: extension ladder
200: New Construction Safety Department

Claims (6)

The vehicle,
A base frame installed at a rear side of a passenger seat of the vehicle,
An extension ladder that is extended or shortened in multiple stages and rotates up and down in a state in which a predetermined angle is maintained using an angle adjusting cylinder while one end portion is rotatably supported on an upper side of the base frame,
It includes a stretch safety unit for maintaining the extended or shortened state of the stretched ladder and monitor the state,
The new safety department A plurality of stop levers are installed at each of the end portions of the other ends except for the last end of the stretched ladder, and are provided with a stop lever for blocking the movement of an adjacent next step to be locked or for releasing the block to be released. An elevated ladder vehicle including a safety device, a plurality of recording devices respectively installed to photograph an operation state of the safety device, and a display device installed to view an image photographed by the shooting device. The method according to claim 1,
The safety device of the elastic safety unit is rotatably coupled to the central end by using a hinge axis to the extending end of each end of the extension ladder, and one end is blocked or blocked by the movement of the next end adjacent to each other. It is released to be released and the other end is provided with the stop lever in which the long hole is formed, and the piston rod which is respectively installed on the extending end of each end of the expansion ladder and coupled to move forward and backward, the piston An elevated ladder vehicle including a cylinder to which the forward end of the rod is rotatably coupled using the long hole and the hinge axis of the stop lever. The method according to claim 2,
The photographing apparatus is made using a CCD camera and the piston rod is photographed in a state where the piston rod of the cylinder is moved forward so that the stop lever is locked, and the piston rod is moved backward in order to release the stop lever. Elevated ladder car installed in the location where it is not taken. The method according to claim 2,
The stretchable safety part is installed at an end of the piston rod extending and is provided with a first identification part for identifying a locked state of the safety device, and is installed to extend from the first identification part and identifies an unlocked state of the safety device. Further comprising a second identification unit for
The photographing apparatus is an elevated ladder vehicle is installed so that the first identification portion is photographed in the locked state and the second identification portion is photographed in the unlocked state. The method according to claim 1,
The telescopic ladder is rotatably coupled to one end of the base frame using a hinge shaft and is inserted into the fixed ladder and the fixed ladder rotated at a predetermined angle from the base frame using the angle adjusting cylinder. Ladder body consisting of a multi-step ladder that is slidably installed, a length adjusting cylinder for connecting the first end of the fixed ladder and the multi-step ladder, and the length of the ladder ladder from the inside of the fixed ladder using the length adjustment cylinder An expensive ladder car including a plurality of wire members that are installed to extend the length of the multi-step ladder as it is pushed toward and shorten the length by pulling inward. The method according to claim 1,
Each step of the stretchable ladder is an elevated ladder comprising a plurality of vertical frames formed long and parallel to each other at a predetermined interval, and a plurality of horizontal frames connecting the pair of vertical frames at a predetermined interval.

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