CN112429154A

CN112429154A - Assembled lifesaving aerial ladder

Info

Publication number: CN112429154A
Application number: CN202011419671.3A
Authority: CN
Inventors: 刘俊谊; 洪娟; 陈徐均; 陈启飞; 程建生; 焦经纬; 黄恒; 郭荣超; 谢兴坤
Original assignee: Army Engineering University of PLA
Current assignee: Army Engineering University of PLA
Priority date: 2020-12-07
Filing date: 2020-12-07
Publication date: 2021-03-02

Abstract

An assembled lifesaving scaling ladder relates to the technical field of flood control emergency equipment. The base system comprises an upper disc and a lower disc which are arranged up and down, wherein the upper end surface of the lower disc is provided with a centripetal thrust bearing matched with the center of the upper disc; a plurality of fixed blocks are uniformly arranged on the periphery of the upper disc. An aerial ladder is arranged on the upper end face of the upper disc; the aerial ladder is provided with a hand-operated bidirectional self-locking winch, the other end of a steel wire rope on the hand-operated bidirectional self-locking winch is connected with a seat through a top pulley, and the seat slides up and down along a seat pulley block arranged on the aerial ladder. The upper end face of the upper disc is provided with a supporting and adjusting device, and the other end of the supporting and adjusting device is connected with the aerial ladder. Two ends of the supporting and adjusting device are respectively connected with the scaling ladder system and the base system through single and double ears, and the lifting height of the hydraulic jack can be adjusted through the rocker to change the inclination angle of the scaling ladder. The invention has the advantages of strong stability, good applicability, simple and convenient operation, high assembly efficiency, convenient storage and transportation and low cost.

Description

Assembled lifesaving aerial ladder

Technical Field

The invention relates to the technical field of flood prevention and rescue equipment, in particular to the technical field of an assembled lifesaving aerial ladder.

Background

China is in the east of European continent of Asia, is influenced by monsoon, rainfalls unevenly throughout the year, and is a country with heavy rainstorm and flood disasters. Once flood occurs, people trapped by flood are rescued, and the life safety of the people is ensured, so that the method is the first task of all disaster relief work. However, it has been found that it is very difficult to rescue trapped persons from steep wall heights, such as trees, roofs, etc. This is mainly because it is inconvenient to transfer the person to be rescued to vehicles such as boats from a high position in the rescue process, and especially, it is difficult to implement for the old, women, children, etc. At present, rescue equipment used in flood fighting mainly comprises rubber boats, assault boats, folk boats, motor boats, boat bridges and the like. The rubber boat has good maneuverability and flexibility, is convenient to approach a target to be rescued, but has poor stability and is easy to damage. The portal bridge constructed by the pontoon bridge equipment has large carrying capacity, but has poor maneuverability in a narrow navigation channel, so the portal bridge is mainly used for storing rescue goods and transferring personnel. The assault boat and the motor boat have good fast navigation, are widely applied to search and rescue after flood, but have poor stability when rescue is implemented by utilizing a ladder carried by the motor boat and are inconvenient for people to be rescued to go up and down. In summary, at present, no scaling ladder capable of being carried on rescue tools such as a assault boat, a motorboat and the like is available, and the safe and rapid transfer of trapped people after flood is facilitated.

Disclosure of Invention

The invention aims to provide a bidirectional angle-adjustable assembled lifesaving scaling ladder which is strong in stability, good in applicability, simple and convenient to operate, high in assembly efficiency, convenient to store and transport and low in cost.

An assembled lifesaving aerial ladder comprises a base system with a supporting function, wherein a supporting and adjusting device used for adjusting the pitching angle of the aerial ladder system is arranged on the upper portion of the base system, and one end of the aerial ladder system is connected with the base system.

Preferably, the base system of the invention comprises an upper disc and a lower disc which are arranged up and down, wherein the upper end surface of the lower disc is provided with a radial thrust bearing matched with the center of the upper disc; a plurality of fixed blocks are uniformly arranged on the periphery of the upper disc. The upper disc of the invention is a flat cylinder, is connected with the lower disc through a centripetal thrust bearing, and can freely rotate around the vertical direction.

Preferably, the upper end face of the upper disk plate of the present invention is provided with a cover plate which is matched with the radial thrust bearing.

Preferably, the fixing block and the lower disc are connected through bolts. The cylindrical block is provided with a notch, and the cylindrical block with the notch also has a certain supporting effect on the upper disc.

Preferably, a plurality of supporting feet are uniformly arranged on the lower end surface of the lower disc. The supporting legs are composed of a chassis, a screw rod and a nut, and the height of the supporting legs can be adjusted by rotating the screw rod to enable the base plate to be in a horizontal state.

Preferably, the two opposite sides of the lower disc are respectively provided with a base frame, each group of base frames are provided with a C-shaped clamp for fixing, and the base frames can be fixed on the boat by utilizing the C-shaped clamps.

Preferably, two double-lug components matched with an aerial ladder system are arranged on the upper end face of the upper disc, and the double-lug components are connected with one end of the aerial ladder; the aerial ladder is provided with a hand-operated bidirectional self-locking winch, the other end of a steel wire rope on the hand-operated bidirectional self-locking winch is connected with a seat through a top pulley, and the seat slides up and down along a seat pulley block arranged on the aerial ladder. One end of the steel wire rope is connected with the winch, and the other end of the steel wire rope bypasses the pulley at the top of the aerial ladder to be connected with the seat. The seat can be quickly lifted along the aerial ladder by operating the winch.

Preferably, the seat of the present invention is provided with a seat cushion and a safety belt fixed to the seat.

Preferably, the upper end face of the upper disc of the invention is provided with a supporting and adjusting device, and the other end of the supporting and adjusting device is connected with the aerial ladder. Two ends of the supporting and adjusting device are respectively connected with the scaling ladder system and the base system through single and double ears, and the lifting height of the hydraulic jack can be adjusted through the rocker to change the inclination angle of the scaling ladder.

Preferably, the support adjusting device is a jack, and a rocker is arranged on the jack. The jack of the invention has a positioning hole at the top in the radial direction and a single lug structure at the bottom.

Compared with the prior art, the invention has the following remarkable advantages:

1. the stability is strong: the upper scaling ladder structure of the bidirectional angle-adjustable assembled lifesaving scaling ladder is made of high-strength light materials, the lower base system is made of cast iron, and the integral gravity center is lower; in addition, the aerial ladder device can be fixed on boats (ships) for use, and the stability of the whole system is improved by connecting the two boats (ships) in parallel to form a structure similar to a catamaran.

2. The applicability is good: the aerial ladder of the device can rotate to any position around the vertical direction for fixing, and meanwhile, the inclination angle of the aerial ladder can be adjusted according to actual needs; aiming at the problem that people such as old people, women, children and the like are inconvenient to go up and down the ladder, the slide chair system is additionally arranged, so that the people can conveniently ascend from water and rescue during flood prevention and emergency rescue, and the safety and the search and rescue efficiency are improved.

3. Simple operation and high operation efficiency: the device adopts an assembly type structure, and can realize quick assembly without operating machinery; the whole weight is lighter, and manual erection and withdrawal can be realized. Compared with the rescue mode of directly erecting a common ladder, the device is safer to use, and the operation time is greatly reduced.

4. The storage and transportation are convenient: the structural form of each part of the component forming the device is simple, the volume is small, and the device is convenient for mass storage and transportation.

5. The cost is low: the equipment used by the technology is mainly made of cast iron and high-strength light materials, has low cost and simple production and processing, and can be used for a long time.

Drawings

FIG. 1 is a schematic diagram of a structure of the present invention.

Fig. 2 is a schematic diagram of the structure of the base system of the present invention.

Fig. 3 is a schematic diagram of the internal structure of the base system of the present invention.

Fig. 4 is a schematic view of the structure of the adjustable supporting foot of the present invention.

Fig. 5 is a schematic view of the structure of the adjusting and supporting device of the present invention.

Fig. 6 is a schematic structural diagram of an aerial ladder system of the invention.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings:

as shown in fig. 1, an assembled aerial ladder for lifesaving is characterized by comprising a base system 1 for supporting, wherein a supporting and adjusting device 2 for adjusting the pitch angle of an aerial ladder system 3 is arranged at the upper part of the base system 1, and one end of the aerial ladder system 3 is connected with the base system 1.

As shown in fig. 2 and 3, the base system 1 of the present invention includes an upper disc 111 and a lower disc 113 arranged up and down, and a radial thrust bearing 114 matching with the center of the upper disc 111 is disposed on the upper end surface of the lower disc 113; a plurality of fixing blocks 115 are uniformly arranged on the outer circumference of the upper disc 111.

As shown in fig. 2, the upper end surface of the upper disc 111 of the present invention is provided with a cover plate 116 that matches the radial thrust bearing 114.

As shown in fig. 2, the fixing block 115 of the present invention is bolted to the lower plate 113.

As shown in fig. 2 and 3, a plurality of supporting legs 13 are uniformly arranged on the lower end surface of the lower disk 113 according to the present invention.

As shown in FIG. 1, base frames 12 are respectively disposed on two opposite sides of the lower plate 113 of the present invention, and a C-shaped clamp 4 for fixing is disposed on each set of base frames 12.

As shown in fig. 1 and 2, two double-lug members 112 matched with the aerial ladder system 3 are arranged on the upper end face of the upper disc 111 of the invention, and the double-lug members 112 are connected with one end of the aerial ladder 31; the aerial ladder 31 is provided with a hand-operated bidirectional self-locking winch 33, the other end of a steel wire rope 34 on the hand-operated bidirectional self-locking winch 33 is connected with a seat 36 through a top pulley 35, and the seat 36 slides up and down along a seat pulley block 38 arranged on the aerial ladder 31.

As shown in fig. 1 and 6, a seat cushion 37 and a safety belt 39 fixed to the seat 36 are provided to the seat 36 of the present invention.

As shown in fig. 1 and 5, a support adjusting device 2 is provided on the upper end surface of upper disc 111 of the present invention, and the other end of support adjusting device 2 is connected to aerial ladder 31.

As shown in fig. 5, the supporting and adjusting device 2 of the present invention is a jack 21, and a rocker 22 is provided on the jack 21.

As shown in fig. 1, the base system 1 of the present invention is composed of a base plate 11, a base frame 12 and supporting legs 13; the base plate 11 is composed of an upper disc 111, a double-lug member 112, a lower disc 113, a radial thrust bearing 114, a cylindrical block 115 with a notch, a cover plate 116 and a screw 117. The upper disc 111 is a flat cylinder, is connected with the lower disc 113 through a radial thrust bearing 114, and is pressed tightly by a cover plate 116. Therefore, the upper disc 111 can rotate freely around the vertical direction to realize the function of adjusting the circumferential angle of the aerial ladder system 3. Three double-lug members 112 are fixed on the upper disc 111 through screws 117 and are respectively used for being connected with the supporting and adjusting device 2 and the aerial ladder system 3. The lower disk 113 is a flat rectangular body, and at least four notched cylindrical blocks 115 are fixed on the lower disk 113 through screws 117. Each notched cylindrical block 115 has three positioning holes, two of which are used for fixing screws, and the other is used for fixing the position of the upper disc 111. The position of the upper disc 111 can be fixed by screwing the screw 117 into the positioning hole to tightly push the upper disc. In addition, the notched cylinder block 115 also provides some support for the upper disk. The base frame 12 is connected with the base plate 11 through welding, and the base frame 12 can be fixed on a boat by utilizing the C-shaped clamp 4, so that the safety and the stability of the whole lifesaving scaling ladder device are enhanced.

As shown in FIG. 4, the supporting legs 13 of the present invention are composed of a base plate 131, a screw 132 and a nut 133, and the height of the supporting legs 13 can be adjusted by rotating the screw 132 to make the base plate 11 in a horizontal state.

As shown in fig. 5, the supporting and adjusting device 2 of the present invention is composed of a vertical hydraulic jack 21 and a rocker 22, the top of the jack is provided with a radial positioning hole, and the bottom of the jack is provided with a single-lug structure for connecting with single and double lugs of an aerial ladder system and a base system respectively. The rocker can be used for adjusting the jacking height of the hydraulic jack and further changing the inclination angle of the aerial ladder.

As shown in fig. 6, the aerial ladder system 3 of the present invention is composed of an aerial ladder 31, a safety rope 32, a hand-operated bidirectional self-locking winch 33, a wire rope 34, a top pulley 35, a seat 36, a seat cushion 37, a seat pulley block 38 and a safety belt 39. Wherein, the hand-operated bidirectional self-locking winch 33, the wire rope 34, the top pulley 35, the seat 36, the seat cushion 37, the seat pulley block 38, the safety belt 39 and other related components can be installed or disassembled according to actual needs. The scaling ladder 31 is a single ladder structure made of high-strength light materials, and a safety rope 32 is sleeved at the top of the scaling ladder 31 and used for fixedly connecting the top of the scaling ladder 31 with other objects. One end of the steel wire rope 32 is connected with a hand-operated bidirectional self-locking winch 33, and the other end of the steel wire rope is connected with a seat 36 by bypassing a top pulley 35 of the aerial ladder 31. The seat 36 can be quickly lifted along the aerial ladder 31 by operating the hand-operated bidirectional self-locking winch, and the seat can be conveniently fixed at any position of the aerial ladder 31.

The working principle of the invention is as follows:

1. when search and rescue after flood needs to be carried out, the base system 1, the support adjusting device 2, the aerial ladder system 3, the C-shaped clamp 4 and the like are conveyed to a search and rescue site from a storage warehouse.

2. After the base system 1 is placed in the boat, the base plate 11 is in a horizontal state by adjusting the height of the supporting legs 13.

3. The base frame 12 is fixed on the side of the boat by using a C-shaped clamp 4. Two boats are connected in parallel by means of ropes and the like to form a structure similar to a catamaran, so that the stability of the whole system is improved.

4. The upper disc 111 is rotated so that the direction of the three binaural components 112 thereon is parallel to the boat longitudinal direction, and the position of the upper disc 111 is fixed by tightening screws passing through the positioning holes of the four notched cylindrical blocks 115.

5. According to actual conditions, components of the slide chair system 3 such as a hand-operated bidirectional self-locking winch 33, a steel wire rope 34, a top pulley 35, a seat 36, a seat cushion 37, a seat pulley block 38, a safety belt 39 and the like are additionally or detachably arranged.

6. The bottoms of the left and right legs of the aerial ladder 31 are connected with the double-lug members 112 on the upper disc 111 through bolts. The tilt angle of the aerial ladder 31 is adjusted, and the support adjusting device 2 is connected to the aerial ladder 31 and the binaural member 112 of the upper disc.

7. After the aerial ladder reaches the place to be rescued, the position of the upper disc 111 is rotated and the inclination angle of the aerial ladder 31 is adjusted through the supporting and adjusting device 2 according to the requirements of the site. The seat 36 is lifted by a hand-operated bidirectional self-locking winch 33, and the relevant person is transferred to the boat.

8. Adjusting the height of the supporting and adjusting device 2 to the lowest height, and continuing searching and rescuing; or after the search and rescue task is completed, withdrawing according to the reverse sequence from the step 1 to the step 6.

Claims

1. The assembled lifesaving scaling ladder is characterized by comprising a base system (1) which plays a supporting role, wherein a supporting and adjusting device (2) which is used for adjusting the pitching angle of a scaling ladder system (3) is arranged on the upper portion of the base system (1), and one end of the scaling ladder system (3) is connected with the base system (1).

2. The assembled lifesaving aerial ladder of claim 1, wherein the base system (1) comprises an upper disk (111) and a lower disk (113) which are arranged up and down, and the upper end surface of the lower disk (113) is provided with a centripetal thrust bearing (114) matched with the center of the upper disk (111); the periphery of the upper disk (111) is uniformly provided with a plurality of fixed blocks (115).

3. The assembled aerial ladder as claimed in claim 2, wherein the upper end surface of the upper plate (111) is provided with a cover plate (116) which is matched with the radial thrust bearing (114).

4. The assembled aerial ladder as claimed in claim 2, wherein the fixing block (115) is bolted to the lower plate (113).

5. The assembled lifesaving aerial ladder of claim 2, wherein a plurality of supporting feet (13) are uniformly arranged on the lower end surface of the lower disk (113), and each supporting foot comprises a chassis, a screw rod and a nut which are connected in series.

6. The assembled aerial ladder as claimed in claim 2, wherein the lower plate (113) is provided with base frames (12) at opposite sides thereof, and each base frame (12) is provided with a C-shaped clamp (4) for fixation.

7. The assembled lifesaving aerial ladder of claim 1 or 2, wherein the upper end surface of the upper disk (111) is provided with two double-lug members (112) matched with the aerial ladder system (3), and the double-lug members (112) are connected with one end of the aerial ladder (31); a hand-operated bidirectional self-locking winch (33) is arranged on the aerial ladder (31), the other end of a steel wire rope (34) on the hand-operated bidirectional self-locking winch (33) is connected with a seat (36) through a top pulley (35), and the seat (36) slides up and down along a seat pulley block (38) arranged on the aerial ladder (31).

8. The assembled lifesaving aerial ladder as claimed in claim 7, wherein said seat (36) is provided with a seat cushion (37) and a safety belt (39) fixed to said seat (36).

9. The assembled aerial ladder for lifesaving of claim 7, wherein the upper end surface of the upper disc (111) is provided with a supporting and adjusting device (2), and the other end of the supporting and adjusting device (2) is connected with the aerial ladder (31).

10. The assembled aerial ladder as claimed in claim 9, wherein the support adjusting means (2) is a jack (21), and a rocker (22) is provided on the jack (21).