阅读说明：本技术 一种水下探测设备用升降装置 (Lifting device for underwater detection equipment ) 是由 管鑫龙 管德均 于 2021-09-28 设计创作，主要内容包括：本发明涉及水下探测技术领域,公开了一种水下探测设备用升降装置,包括船体,船体底部设置有水下升降装置,水下升降装置包括升降云梯,升降云梯通过若干个剪叉云梯组成；升降云梯分别为收缩状态和伸展状态；船体底部设置有第一收纳槽,升降云梯处于收缩状态时,第一收纳槽内部一侧的剪叉云梯水平收纳成为第一子云梯组。通过升降云梯处于收缩状态时,对升降云梯中的剪叉云梯处于完全收缩的状态,再通过将每个剪叉云梯横向收缩成第一子云梯组和第二子云梯组,再将第一子云梯组和第二子云梯组进行横置折叠在第一收纳槽内,方便与船体对升降云梯的收纳,并且避免了限制于船体高度而无法收纳过长的升降云梯。(The invention relates to the technical field of underwater detection, and discloses a lifting device for underwater detection equipment, which comprises a ship body, wherein the bottom of the ship body is provided with an underwater lifting device, the underwater lifting device comprises a lifting aerial ladder, and the lifting aerial ladder consists of a plurality of scissor aerial ladders; the aerial ladder is respectively in a contraction state and an extension state; the hull bottom is provided with the first groove of accomodating, and when the lift aerial ladder was in the shrink state, the first scissors fork aerial ladder level of accomodating inside one side of groove was accomodate and is become first sub-aerial ladder group. When being in the shrink state through the aerial ladder that goes up and down, be in the state of contracting completely to the scissors fork aerial ladder among the aerial ladder that goes up and down, the rethread is with every horizontal shrink of scissors fork aerial ladder becomes first sub aerial ladder group and second sub aerial ladder group, and it is folding at the first inslot of accomodating to go on transversely first sub aerial ladder group and second sub aerial ladder group again, and convenient and hull is to accomodating of aerial ladder that goes up and down to avoid restricting in the hull height and can't accomodate the aerial ladder that goes up and down of overlength.)

1. The utility model provides a lifting device for underwater exploration equipment, includes hull (1), hull (1) bottom is provided with underwater lifting device (2), its characterized in that: the underwater lifting device (2) comprises a lifting scaling ladder (3), and the lifting scaling ladder (3) consists of a plurality of scissor scaling ladders (4);

the lifting aerial ladder (3) is in a contraction state and an extension state respectively;

a first accommodating groove (5) is formed in the bottom of the ship body (1), when the lifting aerial ladder (3) is in a contraction state, the scissor aerial ladder (4) on one side inside the first accommodating groove (5) is horizontally accommodated to form a first sub aerial ladder group (31), a second sub aerial ladder group (32) is arranged below the first sub aerial ladder group (31), and the first sub aerial ladder group (31) and the second sub aerial ladder group (32) are longitudinally accommodated and connected through the two scissor aerial ladders (4);

a connecting assembly (6) is arranged between one side of each two adjacent scissor aerial ladders (4), and the connecting assembly (6) enables each two adjacent scissor aerial ladders (4) to rotate longitudinally and transversely to realize contraction and extension;

the aerial ladder with the scissor fork (4) comprises two supporting shells (41), the supporting shells (41) are respectively positioned at the upper end and the lower end of the aerial ladder with the scissor fork (4), a semi-cylindrical reinforcing rod (42) and a rectangular reinforcing rod (43) are respectively arranged at two sides of each supporting shell (41), and the semi-cylindrical reinforcing rods (42) and the rectangular reinforcing rods (43) of the two supporting shells (41) are respectively arranged in different directions, so that the aerial ladders with the scissor fork (4) can be mutually folded;

a locking assembly (7) is further arranged between the scissor aerial ladders (4), and the locking assembly (7) enables every two scissor aerial ladders (4) to be fixed after longitudinal and transverse rotation;

balance assemblies (9) are arranged on two sides of the ship body (1), and the balance assemblies (9) are used for stabilizing the ship body (1) when underwater detection equipment works.

2. The lifting device for underwater detection equipment according to claim 1, characterized in that: when the lifting aerial ladder (3) is in a contraction state, the lifting aerial ladder is positioned in the first accommodating groove (5); still be provided with hawser in first holding groove (5) and receive and release subassembly (8), hawser receive and release subassembly (8) is used for can fix when lift aerial ladder (3) are stretched out the state.

3. The lifting device for underwater detection equipment according to claim 1, characterized in that: the first groove (5) of accomodating inner chamber middle part is provided with mounting panel (51), lift aerial ladder (3) through one cut fork aerial ladder (4) with mounting panel (51) fixed connection.

4. The lifting device for underwater detection equipment according to claim 1, characterized in that: coupling assembling (6) are including connecting gear (61), connecting gear (61) are located respectively semi-cylindrical reinforcing rod (42) both sides, connecting gear (61) outside is provided with cardboard (62), two cut fork aerial ladder (4) and be located one side of semi-cylindrical reinforcing rod (42) is passed through connecting gear (61) are connected.

5. The lifting device for underwater detection equipment according to claim 1, characterized in that: the locking assembly (7) is respectively positioned on the side face of the rectangular reinforcing rod (43) on the scissor aerial ladder (4), a groove (44) is formed in the side face of the rectangular reinforcing rod (43), and a motor chamber (45) is arranged in the groove (44).

6. The lifting device for underwater detection equipment according to claim 5, wherein: locking subassembly (7) are including locking motor (71), locking motor (71) output runs through motor chamber (45), locking motor (71) output is provided with rolling dish (72), the winding has locking cable (73) on rolling dish (72), another of folding together adjacent locking cable (73) other end is cut rectangle stiffener (43) fixed connection of fork aerial ladder (4).

7. The lifting device for underwater detection equipment according to claim 2, characterized in that: the mooring rope winding and unwinding assembly (8) comprises a waterproof motor (81), a cable disc (82) is arranged at the output end of the waterproof motor (81), the cable disc (82) is fixedly connected with the first storage groove (5) through a fixing plate (83), a fixing mooring rope (84) is arranged on the cable disc (82), a fixing ring (46) is arranged on the side face of the scissor aerial ladder (4), and the fixing mooring rope (84) penetrates through the fixing ring (46) and is used for fixing the lifting aerial ladder (3) in the extension state.

8. The lifting device for underwater detection equipment according to claim 1, characterized in that: balance member (9) are including balance plate (91), hull (1) both sides are provided with the second and accomodate groove (11), balance plate (91) are located inside groove (11) are accomodate to the second, both sides all are provided with reinforced cable (92) about balance plate (91), hull (1) are located the upper and lower both sides that groove (11) were accomodate to the second are provided with respectively and receive reel (12), reinforced cable (92) other end respectively with it connects to receive reel (12).

Technical Field

The invention relates to the technical field of underwater detection, in particular to a lifting device for underwater detection equipment.

Background

With the development of science and technology, various underwater detection instruments are developed vigorously, and make great contribution to the exploration of the topography and landform of the water bottom of large lakes and oceans and underwater targets in deep water areas. At present, high-precision equipment commonly used for underwater detection mainly comprises a multi-beam, three-dimensional imaging sonar, a shallow section, an acoustic Doppler profiler (ADCP) and the like; the scientific research ship is used for investigating and researching hydrology, geology, meteorology, biology and other special tasks, and the underwater detection equipment is a core component on the scientific research ship.

With the improvement of scientific investigation technology, the depth of the water area under investigation is deeper and deeper, and due to the limitation of the height of the ship body, the extending length of the lifting device on the investigation ship is limited, so that the lifting device carried by the investigation ship cannot meet the deep underwater detection, and the underwater investigation depth is increased, so that the lifting device can meet a lot of undercurrents at the water bottom, the ship body is unstable, the investigation work is influenced, and even the ship body is in danger of side turning and the like.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a lifting device for underwater detection equipment, which has the advantages that each scissor aerial ladder is transversely contracted into a first sub aerial ladder group and a second sub aerial ladder group, the extension of the aerial ladder is realized, the aerial ladder can be folded in a ship body, the problem that the aerial ladder is limited to the height of the ship body and cannot be stored too long is avoided, the problem that the extending length of the lifting device on an inspection ship is limited due to the limitation of the height of the ship body, and further the lifting device carried by the inspection ship cannot meet the requirements of deep underwater detection and the like is solved.

(II) technical scheme

In order to solve the technical problems, the invention provides the following technical scheme: a lifting device for underwater detection equipment comprises a ship body, wherein an underwater lifting device is arranged at the bottom of the ship body and comprises a lifting aerial ladder, and the lifting aerial ladder consists of a plurality of scissor aerial ladders; the aerial ladder is in a contraction state and an extension state respectively; the bottom of the ship body is provided with a first accommodating groove, when the lifting aerial ladder is in a contraction state, the scissor-fork aerial ladder on one side inside the first accommodating groove is horizontally accommodated to form a first sub aerial ladder group, a second sub aerial ladder group is arranged below the first sub aerial ladder group, and the first sub aerial ladder group and the second sub aerial ladder group are longitudinally accommodated and connected through two scissor-fork aerial ladders; a connecting assembly is arranged between one side of each two adjacent scissor aerial ladders, and the connecting assembly enables each two adjacent scissor aerial ladders to longitudinally and transversely rotate to realize contraction and extension; the aerial ladder with the scissors comprises two supporting shells, the supporting shells are respectively positioned at the upper end and the lower end of the aerial ladder with the scissors, a semi-cylindrical reinforcing rod and a rectangular reinforcing rod are respectively arranged at the two sides of each supporting shell, and the semi-cylindrical reinforcing rods and the rectangular reinforcing rods of the two supporting shells are respectively arranged in different directions, so that the aerial ladder with the scissors can be mutually folded; a locking assembly is further arranged between the scissor aerial ladders, and each two scissor aerial ladders can be fixed after being longitudinally and transversely rotated; and balance components are arranged on two sides of the ship body and used for stabilizing the ship body when the underwater detection equipment works.

Preferably, a cable winding and unwinding assembly is further arranged in the first accommodating groove, and the cable winding and unwinding assembly is used for fixing the lifting aerial ladder in the stretching state; when the lifting aerial ladder is in a contraction state, the lifting aerial ladder is positioned in the first accommodating groove.

Preferably, the first groove inner chamber middle part of accomodating is provided with the mounting panel, the lift aerial ladder through one cut the fork aerial ladder with mounting panel fixed connection.

Preferably, coupling assembling includes connecting gear, connecting gear is located respectively semi-cylindrical reinforcing rod both sides, the connecting gear outside is provided with the cardboard, two the scissors fork aerial ladder is located one side of semi-cylindrical reinforcing rod is passed through connecting gear connects.

Preferably, the locking assemblies are respectively located on the sides of the rectangular reinforcing rods on the scissor aerial ladder, grooves are formed in the sides of the rectangular reinforcing rods, and motor chambers are arranged in the grooves.

Preferably, the locking assembly comprises a locking motor, the output end of the locking motor penetrates through the motor chamber, the output end of the locking motor is provided with a winding disc, a locking cable is wound on the winding disc, and the other end of the locking cable is fixedly connected with the other rectangular reinforcing rod of the scissor aerial ladder in a folding mode.

Preferably, the mooring rope winding and unwinding assembly comprises a waterproof motor, a cable disc is arranged at the output end of the waterproof motor, the cable disc is fixedly connected with the first winding groove through a fixing plate, a fixing mooring rope is arranged on the cable disc, a fixing ring is arranged on the side face of the scissor aerial ladder, and the fixing mooring rope penetrates through the fixing ring and is used for fixing the lifting aerial ladder in a stretching state.

Preferably, the balance assembly comprises a balance plate, the two sides of the ship body are provided with a second accommodating groove, the balance plate is located in the second accommodating groove, reinforcing cables are arranged on the upper side and the lower side of the balance plate, the ship body is located on the upper side and the lower side of the second accommodating groove, winding drums are arranged on the upper side and the lower side of the second accommodating groove respectively, and the other ends of the reinforcing cables are connected with the winding drums respectively.

(III) advantageous effects

Compared with the prior art, the invention provides a lifting device for underwater detection equipment, which has the following beneficial effects:

1. this elevating gear for underwater detection equipment, when being in the shrink state through the aerial ladder that goes up and down, cut the fork aerial ladder to among the aerial ladder that goes up and down and be in the state of contracting completely, the rethread is cut every and is cut the horizontal shrink of fork aerial ladder and become first sub-aerial ladder group and second sub-aerial ladder group, it is folding at first accomodating the inslot to carry out transversely with first sub-aerial ladder group and second sub-aerial ladder group again, convenient and hull is to accomodating of aerial ladder, and avoided restricting in the hull height and can't accomodate the aerial ladder that goes up and down of overlength.

2. This elevating gear for underwater exploration equipment, semi-cylindrical anchor strut and rectangle anchor strut through cutting fork aerial ladder both sides and setting up, when cutting fork aerial ladder and connecting, carry out swing joint through semi-cylindrical anchor strut one side, other end rectangle anchor strut contact is fixed, make and cut fork aerial ladder when constituteing lift aerial ladder more firm, then the lift aerial ladder is fixed when extending the state, utilize hawser to receive and release the subassembly, taut each cuts fork aerial ladder when lift aerial ladder extends, make the lift aerial ladder during operation, it is more firm.

3. This elevating gear for underwater detection equipment through the connecting gear cooperation cardboard that is located semi-cylindrical anchor strut department, makes two scissors aerial ladder carry out swing joint, and wherein the semi-cylindrical anchor strut is the same with connecting gear's effective radius for when two scissors aerial ladder interconnect rotate, can rotate around the semi-cylindrical anchor strut each other, and under connecting gear effect, the rotation degree is the same between two scissors aerial ladder.

4. This elevating gear for underwater exploration equipment through the locking cable in the locking subassembly, cuts two aerial ladder of fork that can laminate mutually with the rectangle anchor strut and carries out the hawser and connect, when cutting the aerial ladder of fork and need carry out vertical folding (when vertical folding, the lift aerial ladder will extend, goes up and down the aerial ladder promptly and roll out first groove of accomodating), and the locking motor passes through rolling dish rolling locking cable, makes the rectangle anchor strut of this side draw together.

5. This elevating gear for underwater detection equipment, the balance plate that sets up through hull both sides is surveyed time measuring under water, and the balance plate stretches out from the second accomodates the inslot to under the taut effect of winding drum, make the balance plate carry out balanced stability to the hull through the reinforcement cable of both sides about the balance plate, when taking place the undercurrent under water or when stormy waves are great, balance plate cooperation water makes the hull more stable.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a second schematic view of the overall structure of the present invention;

FIG. 3 is a schematic view of the bottom European plan view of a portion of the explosion of the present invention;

FIG. 4 is a schematic perspective view of a part of the aerial ladder of the present invention before extension;

FIG. 5 is an enlarged view of a portion of FIG. 4A;

fig. 6 is a schematic side plan view of a partially exploded view of the present invention.

In the figure: 1. a hull; 11. a second receiving groove; 12. winding the roll; 2. an underwater lifting device; 3. lifting aerial ladders; 31. a first sub-aerial ladder group; 32. a second sub aerial ladder group; 4. a scissor aerial ladder; 41. a support housing; 42. a semi-cylindrical reinforcing rod; 43. a rectangular reinforcing rod; 44. a groove; 45. a motor chamber; 46. a fixing ring; 5. a first receiving groove; 51. mounting a plate; 6. a connecting assembly; 61. a connecting gear; 62. clamping a plate; 7. a locking assembly; 71. locking the motor; 72. a winding disc; 73. locking the cable; 8. a cable take-up and pay-off assembly; 81. a waterproof motor; 82. a cable drum; 83. a fixing plate; 84. fixing a cable; 9. a balancing component; 91. a balance plate; 92. and (4) reinforcing the cable.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-6, a lifting device for underwater exploration equipment comprises a ship body 1, wherein an underwater lifting device 2 is arranged at the bottom of the ship body 1, the underwater lifting device 2 comprises a lifting aerial ladder 3, and the lifting aerial ladder 3 is composed of a plurality of scissor aerial ladders 4; the aerial ladder 3 is respectively in a contraction state and an extension state; the bottom of the ship body 1 is provided with a first accommodating groove 5, and the lifting scaling ladder 3 is positioned in the first accommodating groove 5 when in a contraction state; a connecting assembly 6 is arranged between the two groups of scissors aerial ladders 4, and the connecting assembly 6 enables the two groups of scissors aerial ladders 4 to mutually longitudinally and transversely rotate so as to realize contraction and extension; a locking assembly 7 is further arranged between the scissor aerial ladders 4, and the locking assembly 7 enables every two scissor aerial ladders 4 to be fixed after longitudinal and transverse rotation; a cable retracting and releasing assembly 8 is further arranged in the first accommodating groove 5, and the cable retracting and releasing assembly 8 is used for fixing the lifting aerial ladder 3 in an extending state; the two sides of the ship body 1 are provided with balance assemblies 9, and the balance assemblies 9 are used for stabilizing the ship body 1 when underwater detection equipment works.

Further, when aerial ladder 3 is in the shrink state, the scissors aerial ladder 4 level of the inside one side of first groove 5 of accomodating is accomodate and is become first sub aerial ladder group 31, first sub aerial ladder group 31 below is provided with second sub aerial ladder group 32, vertically accomodate the connection through two scissors aerial ladder 4 between first sub aerial ladder group 31 and the second sub aerial ladder group 32, when utilizing the aerial ladder 3 to be in the shrink state, be in the state of contracting completely to scissors aerial ladder 4 in aerial ladder 3, rethread transversely contract into first sub aerial ladder group 31 and second sub aerial ladder group 32 with every scissors aerial ladder 4, carry out the horizontal folding in first groove 5 of accomodating with first sub aerial ladder group 31 and second sub aerial ladder group 32, convenient and hull 1 to the accomodating of aerial ladder 3, and avoided limiting in the height of hull 1 and can't accomodate the aerial ladder 3 of the lift of hull.

Further, the middle part of the inner cavity of the first accommodating groove 5 is provided with a mounting plate 51, and the lifting scaling ladder 3 is fixedly connected with the mounting plate 51 through a scissor scaling ladder 4.

Further, the aerial ladder with scissors 4 comprises two supporting shells 41, the supporting shells 41 are respectively located at the upper end and the lower end of the aerial ladder with scissors 4, each of the two sides of each supporting shell 41 is respectively provided with a semi-cylindrical reinforcing rod 42 and a rectangular reinforcing rod 43, the semi-cylindrical reinforcing rods 42 and the rectangular reinforcing rods 43 of the two supporting shells 41 are respectively arranged in different directions, so that the aerial ladder with scissors 4 can be folded mutually, the semi-cylindrical reinforcing rods 42 and the rectangular reinforcing rods 43 are arranged on the two sides of the aerial ladder with scissors 4, when the aerial ladder with scissors 4 is connected, the semi-cylindrical reinforcing rods 42 are movably connected on one side, the rectangular reinforcing rods 43 at the other end are fixed in a contact mode, and the aerial ladder with scissors 4 is more stable when the aerial ladder with scissors 3 is formed.

Further, coupling assembling 6 is including connecting gear 61, connecting gear 61 is located semi-cylindrical reinforcing rod 42 both sides respectively, the connecting gear 61 outside is provided with cardboard 62, two scissor aerial ladders 4 are located one side of semi-cylindrical reinforcing rod 42 and connect through connecting gear 61, utilize the connecting gear 61 cooperation cardboard 62 that is located semi-cylindrical reinforcing rod 42 department, make two scissor aerial ladders 4 carry out swing joint, wherein semi-cylindrical reinforcing rod 42 is the same with connecting gear 61's effective radius, when making two scissor aerial ladders 4 interconnect rotate, can rotate around semi-cylindrical reinforcing rod 42 each other, and under connecting gear 61 effect, the rotation degree is the same between two scissor aerial ladders 4.

Further, the locking assemblies 7 are respectively located on the side surfaces of the rectangular reinforcing rods 43 on the scissor ladder 4, grooves 44 are formed in the side surfaces of the rectangular reinforcing rods 43, and motor chambers 45 are arranged in the grooves 44.

Further, the locking assembly 7 comprises a locking motor 71, the output end of the locking motor 71 penetrates through the motor chamber 45, a winding disc 72 is arranged at the output end of the locking motor 71, a locking cable 73 is wound on the winding disc 72, the other end of the locking cable 73 is fixedly connected with the rectangular reinforcing rod 43 of another adjacent folded scissors-fork aerial ladder 4, the two scissors-fork aerial ladders 4, to which the rectangular reinforcing rods 43 can be attached, are connected through cables by using the locking cable 73 in the locking assembly 7, when the scissors-fork aerial ladders 4 need to be folded longitudinally (when the scissors-fork aerial ladders are folded longitudinally, the lifting aerial ladders 3 need to be extended, namely, the lifting aerial ladders 3 are turned out of the first accommodating grooves 5), and the locking motor 71 winds the locking cable 73 through the winding disc 72, so that the rectangular reinforcing rods 43 on the side are pulled together.

Further, the hawser receive and releases subassembly 8 includes waterproof motor 81, waterproof motor 81 output is provided with cable dish 82, cable dish 82 passes through fixed plate 83 and the first 5 fixed connection of accomodating of holding, be provided with fixed hawser 84 on the cable dish 82, it is provided with solid fixed ring 46 to cut fork aerial ladder 4 side, fixed hawser 84 runs through solid fixed ring 46, be used for the fixed when going up and down aerial ladder 3 is in the state of extending, utilize hawser to receive and release subassembly 8, taut each is cut fork aerial ladder 4 when going up and down aerial ladder 3 extends, make the aerial ladder 3 during operation of going up and down, it is more firm.

Further, the balance assembly 9 includes a balance board 91, the two sides of the hull 1 are provided with the second accommodating grooves 11, the balance board 91 is located inside the second accommodating grooves 11, the upper and lower sides of the balance board 91 are provided with reinforcing cables 92, the upper and lower sides of the second accommodating grooves 11 of the hull 1 are provided with winding drums 12, the other ends of the reinforcing cables 92 are connected with the winding drums 12, the balance board 91 arranged on the two sides of the hull 1 is used for underwater detection, the balance board 91 extends out of the second accommodating grooves 11, the reinforcing cables 92 on the upper and lower sides of the balance board 91 are under the tensioning effect of the winding drums 12, the balance board 91 is used for balancing and stabilizing the hull 1, when underwater undercurrent or storm occurs greatly, the balance board 91 is matched with a water body, and the hull 1 is more stable.

The working principle is as follows: when using, hull 1 moves the position that will carry out underwater detection, then the balanced subassembly 9 of hull 1 both sides stretches out, utilize the balance plate 91 that hull 1 both sides set up when surveying under water, the balance plate 91 stretches out in accomodating the groove 11 from the second, and through the reinforcing cable 92 of balance plate 91 upper and lower both sides under the taut effect of winding drum 12, make balance plate 91 balance stability to hull 1, when taking place the dark current under water or when stormy waves are great, balance plate 91 cooperation water, make hull 1 more stable.

Then the lifting device at the bottom of the hull 1 starts working:

firstly, the second aerial ladder sub-group 32 is rotated out of the first accommodating groove 5, the second aerial ladder sub-group 32 is perpendicular to the first aerial ladder sub-group 31, then the scissor-type aerial ladders 4 in the first aerial ladder sub-group 31 and the second aerial ladder sub-group 32 start to rotate, so that the head positions of every two scissor-type aerial ladders 4 are connected to form a lifting aerial ladder 3, then the lifting aerial ladder 3 is fixed in the extending state, each scissor-type aerial ladder 4 is tensioned when the lifting aerial ladder 3 extends by using the cable retracting component 8, and the lifting aerial ladder 3 is more stable when in work;

utilize semi-cylindrical reinforcing rod 42 and the rectangle reinforcing rod 43 that scissors aerial ladder 4 both sides set up, when scissors aerial ladder 4 connects, carry out swing joint through semi-cylindrical reinforcing rod 42 one side, other end rectangle reinforcing rod 43 contact is fixed, make scissors aerial ladder 4 more firm when constituteing lift aerial ladder 3, wherein the connecting gear 61 that is located semi-cylindrical reinforcing rod 42 department cooperates cardboard 62, make two scissors aerial ladder 4 carry out swing joint, wherein semi-cylindrical reinforcing rod 42 is the same with the effective radius of connecting gear 61, when making two scissors aerial ladder 4 interconnect rotate, can rotate around semi-cylindrical reinforcing rod 42 each other, and under connecting gear 61 effect, the rotation degree is the same between two scissors aerial ladder 4.

Locking cable 73 in subassembly 7 again, two scissors fork aerial ladder 4 that can laminate mutually with rectangular strengthening rod 43 carry out the hawser and connect, when scissors fork aerial ladder 4 need carry out vertical folding (during vertical folding, lift aerial ladder 3 will extend, lift aerial ladder 3 commentaries on classics out first accomodating groove 5 promptly), locking motor 71 passes through rolling up locking cable 73 of rolling up dish 72, makes the rectangular strengthening rod 43 of this side draw together.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.