Climbing power assisting device for aerial ladder

Abstract

The invention relates to the technical field of aerial ladders, and discloses an aerial ladder climbing power assisting device which comprises a base, a containing box is fixedly installed at the top of the base, a shear fork assembly is installed at the top of the containing box, a placing table is fixedly installed at the top of the shear fork assembly, and a protection box is movably installed at the top of the placing table. And a stabilizing mechanism is arranged at the top of the base. According to the climbing power assisting device for the aerial ladder, firstly, a controller drives crawler wheels to start, so that aerial ladder equipment moves forwards to a to-be-rescued place, at the moment, the controller drives an electric push rod to drive an anti-skid plate at the bottom to be attached to the ground to prevent the equipment from shaking, and then the controller drives a second motor to start; the protection box is driven to rotate to a proper angle through the meshed driving wheel and driven wheel, at the moment, a user stands in the protection box, the controller drives the first motor to start, the winding roller rotates reversely, the steel cable is loosened, and at the moment, the controller drives the first hydraulic rods to start to drive the shear fork assembly to unfold.

Description

Technical Field

[0001] The present invention relates to the technical field of fire ladders, and specifically to a climbing assistance device for fire ladders. Background Art

[0002] Aerial ladder fire trucks are equipped with hydraulic lifting platforms for firefighters to climb high to fight fires in high-rise buildings, tall facilities, oil tanks, etc., rescue trapped people, rescue valuable materials, and complete other rescue tasks. There is a fire ladder on the vehicle, which can be equipped with a lifting bucket turntable for firefighters to climb high to extinguish fires and rescue trapped people, and is suitable for fighting fires in high-rise buildings.

[0003] After retrieval, a stable variable fire ladder disclosed in the invention patent with the Chinese patent number CN113023632B includes a base. A chamber is opened in the base. A servo motor is fixedly connected to the inner side wall of the chamber. The output end of the servo motor is fixedly connected to a lead screw. The end of the lead screw away from the servo motor penetrates through the side wall of the base and extends outwards. The lead screw is connected to a sliding rod through a sliding device. The lead screw is connected to a winding drum through a linkage device. A rope is arranged on the winding drum. A ladder component is arranged on the base. The ladder component is connected to a railing through a buffer device. The free end of the rope is connected to the railing. Through the rotation between the linkage rod and the fixed rod, adjacent two rectangular frames approach or move away from each other. When adjacent rectangular frames approach each other, the entire ladder component is in a storage state, with a reduced size, smaller occupied space, convenient for movement, and capable of timely disaster relief.

[0004] However, the overall storage of this device is very inconvenient during use, and the placement platform at the top is only fixed by a support rod, which is prone to large vibrations during the recycling process, resulting in great insecurity for the users. Moreover, effective shock absorption cannot be achieved through the spring, which will increase the vibration of the ladder and lead to poor use effect of the ladder. Therefore, a climbing assistance device for fire ladders is proposed to solve the above problems. Summary of the Invention

[0005] (1) Technical Problems to be Solved Aiming at the deficiencies of the prior art, the present invention provides a climbing assistance device for fire ladders, which has the advantages of better stability and safer use, and solves the problems that the overall storage of this device is very inconvenient during use, and the placement platform at the top is only fixed by a support rod, which is prone to large vibrations during the recycling process, resulting in great insecurity for the users. Moreover, effective shock absorption cannot be achieved through the spring, which will increase the vibration of the ladder and lead to poor use effect of the ladder.

[0006] Technical Solutions To achieve the above-mentioned better stability and safer use, the present invention provides the following technical solution: A fire ladder climbing assistance device, including a base, on the top of the base is fixedly installed a receiving box, on the top of the receiving box is installed a scissor assembly, on the top of the scissor assembly is fixedly installed a placement table, on the top of the placement table is movably installed a protective box, and on the top of the base is provided a stabilizing mechanism; The stabilizing mechanism includes a first motor, a winding roller, a steel cable, a guide wheel, a first hydraulic rod, a limiting plate, a sliding opening, a first pull rod, a second pull rod, and a second hydraulic rod. Inside the receiving box is fixedly installed a first motor, the output shaft of the first motor is connected to a winding roller, the outside of the winding roller is fixedly installed with a steel cable, inside the receiving box is movably installed a guide wheel, on the top of the receiving box is movably installed a first hydraulic rod, on the top of the placement table is fixedly installed a limiting plate, inside the limiting plate is opened a sliding opening, outside the limiting plate is hinged a first pull rod, outside the limiting plate is movably installed a second pull rod, and on the top of the limiting plate is fixedly installed a second hydraulic cylinder.

[0007] Preferably, the scissor assembly includes a horizontal support rod and a vertical support rod. The bottom horizontal support rod is fixedly connected to the top of the receiving box. The horizontal support rod and the vertical support rod are hinged to each other. There are two scissor assemblies in total, and the two scissor assemblies are connected to the placement table evenly on the side away from the receiving box.

[0008] Preferably, a wire passing hole is opened inside the horizontal support rod, and the side of the steel cable away from the winding roller penetrates through each wire passing hole and is connected to the bottom of the placement table.

[0009] Preferably, a limiting frame is fixedly installed on the inner top wall of the receiving box, the wire guiding wheel is rotatably connected to the limiting frame, and the side of the first hydraulic rod away from the horizontal support rod is hinged to the adjacent vertical support rod.

[0010] Preferably, there are four limiting plates in total. The four limiting plates are divided into two groups. The number of limiting plates in each group is two. The opposite sides of the two limiting plates in each group are respectively connected to the top of the placement table and the bottom of the protective box.

[0011] Preferably, the side of the first pull rod away from the bottom limiting plate is slidably connected to the top sliding opening, and the side of the second pull rod away from the bottom sliding opening is hinged to the bottom of the top limiting plate.

[0012] Preferably, the first pull rod and the second pull rod are cross-hinged to each other, and the side of the second hydraulic rod away from the limiting plate is connected to the bottom of the protective box.

[0013] Preferably, a second motor is fixedly installed inside the base. A driving wheel is connected to the output shaft of the second motor. A rotating rod is rotatably connected to the inner bottom wall of the base. The top of the rotating rod is fixedly connected to the bottom of the accommodating box. A driven wheel is fixedly installed on the outer part of the rotating rod. The driven wheel meshes with the driving wheel.

[0014] Preferably, crawler wheels are installed at the bottom of the base. Electric push rods are fixedly installed on both the left and right sides of the base. Anti-slip plates are fixedly installed at the bottoms of the electric push rods. A toolbox is installed on the right side of the protective box.

[0015] Advantageous Effects Compared with the prior art, the present invention provides a fire ladder climbing assistance device, which has the following advantageous effects: 1. For this fire ladder climbing assistance device, through the cooperation of the structures of the scissor assembly, it is convenient to store the protective box, thereby making the overall volume of the device smaller and more convenient to use.

[0016] 2. For this fire ladder climbing assistance device, through the cooperation of the structures of the stability mechanism, the device has better stability during use, thus ensuring the rescue safety of firefighters. Brief Description of the Drawings

[0017] Figure 1 It is a front view schematic diagram of the present invention; Figure 2 It is a partial three-dimensional schematic diagram of the present invention; Figure 3 It is a schematic diagram of the scissor assembly of the present invention; Figure 4 It is a sectional view schematic diagram of the present invention; Figure 5 It is a sectional view schematic diagram of the accommodating box of the present invention; Figure 6 It is a partial schematic diagram of the stability mechanism of the present invention.

[0018] In the figure: 1 base, 2 accommodating box, 3 scissor assembly, 301 horizontal support rod, 302 vertical support rod, 4 placing table, 5 protective box, 6 stability mechanism, 601 first motor, 602 winding roller, 603 steel cable, 604 guide wheel, 605 first hydraulic rod, 606 limiting plate, 607 sliding opening, 608 first pull rod, 609 second pull rod, 610 second hydraulic rod, 7 wire passing hole, 8 second motor, 9 driving wheel, 10 rotating rod, 11 driven wheel, 12 electric push rod, 13 anti-slip plate, 14 toolbox. Detailed Embodiments

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0020] Please refer to Figure 1-6 , a fire ladder climbing assistance device, including a base 1, a receiving box 2 is fixedly installed on the top of the base 1, a scissor assembly 3 is installed on the top of the receiving box 2, a placement table 4 is fixedly installed on the top of the scissor assembly 3, a protective box 5 is movably installed on the top of the placement table 4, and a stabilizing mechanism 6 is arranged on the top of the base 1; The stabilizing mechanism 6 includes a first motor 601, a winding roller 602, a steel cable 603, a guide wheel 604, a first hydraulic rod 605, a limiting plate 606, a sliding opening 607, a first pull rod 608, a second pull rod 609, and a second hydraulic rod 610. A first motor 601 is fixedly installed inside the receiving box 2, a winding roller 602 is connected to the output shaft of the first motor 601, a steel cable 604 is fixedly installed outside the winding roller 602, a guide wheel 604 is movably installed inside the receiving box 2, a first hydraulic rod 605 is movably installed on the top of the receiving box 1, a limiting plate 606 is fixedly installed on the top of the placement table 4, a sliding opening 607 is opened inside the limiting plate 606, a first pull rod 608 is hinged outside the limiting plate 606, a second pull rod 609 is movably installed outside the limiting plate 606, and a second hydraulic cylinder 610 is fixedly installed on the top of the limiting plate 606.

[0021] Specifically, through the mutual cooperation of the various structures of the stabilizing mechanism 6, the stability of the equipment during use is better, thus ensuring the rescue safety of firefighters.

[0022] In Figure 1 and Figure 2 , the scissor assembly 3 includes a horizontal support rod 301 and a vertical support rod 302. The bottom horizontal support rod 301 is fixedly connected to the top of the receiving box 2. The horizontal support rod 301 and the vertical support rod 302 are hinged to each other. There are two scissor assemblies 3 in total, and the sides of the two scissor assemblies 3 far from the receiving box 2 are evenly connected to the placement table 4.

[0023] Specifically, through the mutual cooperation of the various structures of the scissor assembly 3, the storage of the protective box 5 is facilitated, so that the overall volume of the equipment is smaller and the use is more convenient.

[0024] In Figure 1 and Figure 2 , a threading hole 7 is opened inside the horizontal support rod 301. The side of the steel cable 603 far from the winding roller 602 passes through each threading hole 7 and is connected to the bottom of the placement table 4.

[0025] Specifically, by setting the first motor 601, the controller can drive the first motor 601 to start, which can drive the winding roller 602 to rotate, thus facilitating the winding and unwinding of the steel cable 603.

[0026] In Figure 1 and Figure 3 a limiting frame is fixedly installed on the inner top wall of the accommodating box 2, the wire guiding wheel 604 is rotatably connected to the limiting frame, and one side of the first hydraulic rod 605 away from the transverse support rod 301 is hinged to the adjacent longitudinal support rod 302.

[0027] Specifically, by setting one end of the steel cable 603 to be connected to the winding roller 602 and the other end to be connected to the placing table 4, when the first motor 601 starts and the steel cable 603 retracts, the scissor assembly 3 can be directly driven to retract, causing the protective box 5 to descend.

[0028] In Figure 2 and Figure 3 there are a total of four limiting plates 606. The four limiting plates 606 are divided into two groups, with two limiting plates 606 in each group. The opposite sides of the two limiting plates 606 in each group are respectively connected to the top of the placing table 4 and the bottom of the protective box 5.

[0029] Specifically, the limiting plate 606 is set to limit the second hydraulic rod 610. When the controller drives the second hydraulic rod 610 to extend and retract, the first pull rod 608 and the second pull rod 609 can be driven to extend and retract synchronously, thereby further supporting the protective box 5.

[0030] In Figure 2 and Figure 3 one side of the first pull rod 608 away from the bottom limiting plate 606 is slidably connected to the top sliding opening 607, and one side of the second pull rod 609 away from the bottom sliding opening 607 is hinged to the bottom of the top limiting plate 606.

[0031] In Figure 2 and Figure 4 the first pull rod 608 and the second pull rod 609 are cross-hinged, and one side of the second hydraulic rod 610 away from the limiting plate 606 is connected to the bottom of the protective box 4.

[0032] In Figure 3 and Figure 5 a second motor 8 is fixedly installed inside the base 1. A driving wheel 9 is connected to the output shaft of the second motor 8. A rotating rod 10 is rotatably connected to the inner bottom wall of the base 1. The top of the rotating rod 10 is fixedly connected to the bottom of the accommodating box 2. A driven wheel 11 is fixedly installed on the outside of the rotating rod 10, and the driven wheel 11 meshes with the driving wheel 9.

[0033] Specifically, by setting up the second motor 8, the controller drives the second motor 8 to start and drive the driving wheel 9 and the driven wheel 11 to rotate, so that the rotating rod 10 drives the top containing box 2 and the protection box 5 to rotate synchronously and adjust the direction of the protection box 5.

[0034] exist Figure 4 and Figure 6 In the figure, a crawler wheel is installed at the bottom of the base 1, an electric push rod 12 is fixedly installed on the left and right sides of the base 1, an anti-skid plate 13 is fixedly installed at the bottom of the electric push rod 12, and a tool box 14 is installed on the right side of the protective box 4.

[0035] To sum up, when the fire ladder climbing assist device is in use, the controller first drives the track wheel to start, so that the ladder equipment moves forward to the rescue location. At this time, the controller drives the electric push rod 12 to drive the anti-skid plate 13 at the bottom to fit the ground to prevent the equipment from shaking. Then the controller drives the second motor 8 to start, and drives the protective box 5 to rotate to a suitable angle through the engaged active wheel 9 and the driven wheel 11. At this time, the user stands in the protective box 5, the controller drives the first motor 601 to start, the winding roller 602 reverses, and the steel cable 603 is loosened. At this time, the controller drives each first hydraulic rod 605 to start, driving the scissors assembly 3 to unfold, and adjust when reaching the specified height. At the same time, the controller drives the second hydraulic rod 610 to extend and retract, and fine-tune the specific height to make the position more accurate. At this time, the user can open the tool box 14 to take out the rescue tools inside. When the rescue is completed, the controller drives the first motor 601 to rotate slowly. At this time, the steel cable 603 rewinds, and the protective box 5 can fall back, thereby ensuring greater stability.

[0036] In addition, by setting the first motor 601, the controller drives the first motor 601 to start and drive the winding roller 602 to rotate, thereby facilitating the retraction and extension of the steel cable 603. By setting one end of the steel cable 603 to be connected to the winding roller 602 and the other end to the placement table 4, when the first motor 601 is started and the steel cable 603 retracts, the scissor assembly 3 can be directly driven to retract, causing the protective box 5 to descend. By setting the guide wheel 604, the steel cable 603 is buffered, protected and guided to prevent the steel cable 603 from breaking and ensure a longer service life. By setting the first hydraulic rod 605, each first hydraulic rod 605 is connected to the The interval setting makes it convenient to open the scissors assembly 3 and ensure the stability of the protective box 5. The second hydraulic rod 610 is limited by setting the limit plate 606. When the controller drives the second hydraulic rod 610 to extend or retract, it can drive the first pull rod 608 and the second pull rod 609 to extend or retract synchronously, thereby further supporting the protective box 5. By setting the crawler wheels, the ladder is driven to move. By setting the second motor 8, the controller drives the second motor 8 to start and drive the driving wheel 9 and the driven wheel 11 to rotate, so that the rotating rod 10 drives the top storage box 2 and the protective box 5 to rotate synchronously, and adjusts the direction of the protective box 5.

[0037] It should be noted that, in this document, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the phrase "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising said element.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fire truck ladder climbing assistance device, comprising a base (1), characterized in that: A receiving box (2) is fixedly installed at the top of the base (1). A scissor assembly (3) is installed at the top of the receiving box (2). A placing table (4) is fixedly installed at the top of the scissor assembly (3). A protective box (5) is movably installed at the top of the placing table (4). A stabilizing mechanism (6) is arranged at the top of the base (1). The stabilizing mechanism (6) includes a first motor (601), a winding roller (602), a steel cable (603), a guide wheel (604), a first hydraulic rod (605), a limiting plate (606), a sliding opening (607), a first pull rod (608), a second pull rod (609), and a second hydraulic rod (610). A first motor (601) is fixedly installed inside the receiving box (2). A winding roller (602) is connected to the output shaft of the first motor (601). A steel cable (604) is fixedly installed outside the winding roller (602). A guide wheel (604) is movably installed inside the receiving box (2). A first hydraulic rod (605) is movably installed at the top of the receiving box (1). A limiting plate (606) is fixedly installed at the top of the placing table (4). A sliding opening (607) is formed inside the limiting plate (606). A first pull rod (608) is hinged to the outside of the limiting plate (606). A second pull rod (609) is movably installed outside the limiting plate (606). A second hydraulic cylinder (610) is fixedly installed at the top of the limiting plate (606).

2. The climbing assistance device for a fire ladder according to claim 1, characterized in that: The scissor assembly (3) includes a horizontal support rod (301) and a vertical support rod (302). The bottom horizontal support rod (301) is fixedly connected to the top of the receiving box (2). The horizontal support rod (301) and the vertical support rod (302) are hinged to each other. There are two scissor assemblies (3) in total. The two scissor assemblies (3) are connected to the placing table (4) evenly on the side away from the receiving box (2).

3. The fire ladder climbing assistance device according to claim 1, characterized in that: A wire passing hole (7) is formed inside the horizontal support rod (301). One side of the steel cable (603) away from the winding roller (602) passes through each wire passing hole (7) and is connected to the bottom of the placing table (4).

4. The climbing assistance device for a fire ladder according to claim 2, characterized in that: A limiting frame is fixedly installed on the inner top wall of the receiving box (2). The wire guide wheel (604) is rotatably connected to the limiting frame. One side of the first hydraulic rod (605) away from the horizontal support rod (301) is hinged to the adjacent vertical support rod (302).

5. The fire ladder climbing assistance device according to claim 1, characterized in that: There are four limiting plates (606) in total. The four limiting plates (606) are divided into two groups. The number of limiting plates (606) in each group is two. The opposite sides of the two limiting plates (606) in each group are respectively connected to the top of the placing table (4) and the bottom of the protective box (5).

6. The climbing assistance device for a fire ladder according to claim 1, characterized in that: One side of the first pull rod (608) away from the bottom limiting plate (606) is slidably connected to the top sliding opening (607). One side of the second pull rod (609) away from the bottom sliding opening (607) is hinged to the bottom of the top limiting plate (606).

7. The climbing assistance device for a fire ladder according to claim 1, characterized in that: The first pull rod (608) and the second pull rod (609) are cross-hinged with each other, and one side of the second hydraulic rod (610) away from the limit plate (606) is connected to the bottom of the protective box (4).

8. A fire truck ladder climbing assistance device according to claim 1, characterized in that: A second motor (8) is fixedly installed inside the base (1). A driving wheel (9) is connected to the output shaft of the second motor (8). A rotating rod (10) is rotatably connected to the inner bottom wall of the base (1). The top of the rotating rod (10) is fixedly connected to the bottom of the accommodating box (2). A driven wheel (11) is fixedly installed on the outside of the rotating rod (10). The driven wheel (11) meshes with the driving wheel (9).

9. The fire ladder climbing assist device according to claim 1, characterized in that: Track wheels are installed at the bottom of the base (1). Electric push rods (12) are fixedly installed on both the left and right sides of the base (1). Anti-slip plates (13) are fixedly installed at the bottoms of the electric push rods (12). A tool box (14) is installed on the right side of the protective box (4).

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