Rotary boarding ladder
Technical field
The utility model relates to boarding ladder, particularly relates to the rotary boarding ladder of the upper and lower boats and ships of a kind of constructability personnel.
Background technology
Boarding ladder is in boats and ships landing pier operation process, the device of loading and unloading operation personnel and safety of crew boats and ships up and down smoothly, and tradition device of going on board has plenty of the self-contained gangway ladder of boats and ships, has plenty of and uses fixed type boarding ladder.Existing fixed type boarding ladder connects ladder respectively at the two ends in an aisle, and one end ladder is overlapped by stay bearing plate and the direct rigidity of deck in ship structure, and the other end is overlapped by roller and harbour.
In the evolution of Offshore Engineering boats and ships harbour, the large pier in modern age, the higher and harbour that tidal range is larger of special absolute altitude, boats and ships jolting in operation process, travelling frequent, and Amplitude Ratio is larger.It is that the gangway ladder that boats and ships carry is insoluble that ship under this condition--bank connects.Traditional method carries, until ship side exceeds harbour plane by adjusting a year teacher ceaselessly to carry out tune.The shortcoming of this traditional method is: 1, gangway ladder is only applicable to the go on board work of ship side higher than harbour plane, and field of application is narrow and small.2, gangway ladder is all directly contact with boats and ships and harbour, does not have the wheel slided to contact with hull with harbour with round and smooth stay bearing plate, and friction is comparatively large, has infringement to harbour and hull.3, in order to ensure that ship side is higher than harbour plane, need to adjust and carry Shi Jinhang tune year, labor intensive and material resources, adds additional shipment cost.
Utility model content
Main purpose of the present utility model is to overcome above-mentioned defect that existing product exists and provides a kind of rotary boarding ladder, make boats and ships under carrying situation without the need to tune, workmen can smooth up and down boats and ships safely, and the operating condition of different harbour and boats and ships can be met, Applicable scope is wider, easy to operate and safe.
The purpose of this utility model is realized by following technical scheme.
The rotary boarding ladder of the utility model, comprises aisle and ladder; It is characterized in that: these two ends, aisle are movable connection support post and ladder respectively; This ladder top is connected with aisle is movable, and roller is installed in bottom; This support post top is connected with aisle is movable, and roller is installed in bottom.
Aforesaid rotary boarding ladder, wherein support post comprises two cylinders horizontal by vertical configuration, this cylinder bottom is fixed on plate top surface, and is provided with reinforcement gusset between both sides corresponding bottom cylinder and plate top surface, and a roller is installed at two ends, base plate bottom surface respectively; Cylinder top is provided with connecting panel, and this connecting panel is provided with pin shaft hole; Upper and lower between two columns connects lacing wire respectively by two and is integrally connected, and the distance between the connecting panel that two cylinder tops are arranged is corresponding with width of walkway.
Aforesaid rotary boarding ladder, wherein the left and right sides at two ends, aisle is respectively equipped with one piece of connecting panel, and this connecting panel is provided with pin shaft hole; Two ends, described ladder top are respectively equipped with one piece of connecting panel, and this connecting panel is provided with pin shaft hole, and roller is installed respectively in two ends, bottom; The connecting panel that these left end both sides, aisle are provided with, two ends, a ladder top are provided with connecting panel and support post two the cylinder tops be positioned at bottom the left end of aisle are provided with connecting panel corresponding coincidence mutually, make the pin shaft hole of three pieces of connecting panels involutory, be located in aisle, ladder and support post cylinder top by a bearing pin to be provided with in the involutory pin shaft hole of connecting panel, thus make ladder, support post and aisle left end three form movable connection; The connecting panel that these right-hand member both sides, aisle are provided with, another two ends, ladder top are provided with connecting panel and support post two the cylinder tops be positioned at bottom the right-hand member of aisle are provided with connecting panel corresponding coincidence mutually, make the pin shaft hole of three pieces of connecting panels involutory, be located in aisle, ladder and support post cylinder top by another root bearing pin to be provided with in the involutory pin shaft hole of connecting panel, thus make ladder, support post and aisle right-hand member three form movable connection.For ladder along with tidal range rotates, meet the operation of going on board under different sea situation.
Aforesaid rotary boarding ladder, wherein corridor length designs according to the requirement of specification GB 11701-1989, and under extreme tide range, the aisle anglec of rotation is with respect to the horizontal plane less than 15 degree; Described support post height is greater than ship side and harbour bank guardrail height; The angle of inclination of described ladder is 40 to 50 degree.
Aforesaid rotary boarding ladder, wherein roller to be rated load the be heavy castor of more than 1 ton.
The beneficial effect of the rotary boarding ladder of the utility model is: its structure is made up of ladder, support post and aisle three part, can meet the operating condition of different harbour and boats and ships, and Applicable scope is wider, easy to operate and safe; The junction in ladder, support post and aisle, by a pinned connection one, is convenient to ladder and is rotated along with tidal range, meet the operation of going on board under different sea situation; Support post adopts roller and earth surface, and the friction of boarding ladder and ground and boat deck, by roller contact, is reduced in ladder and boat deck, is convenient to boarding ladder and laterally moves about along with boats and ships, play the effect of protection hull simultaneously; When boats and ships and harbour drop larger time, ladder can follow ship side to rotate together along with the change of tide, save adjust carry teacher to boats and ships carry out adjust carry operation, reduce shipment cost; Structure design advantages of simple, laid down cost is low.
Accompanying drawing explanation
Fig. 1 is the utility model rotary boarding ladder integral structure schematic diagram.
Fig. 2 is the utility model rotary boarding ladder supporting upright column structure schematic diagram.
Fig. 3 is that the rotary boarding ladder of the utility model rotates up operation schematic diagram.
Fig. 4 is that the rotary boarding ladder of the utility model is rotated down operation schematic diagram.
Major label description in figure: A represents harbour bank, B represents ship deck, 1 aisle, 12 aisle connecting panels, 2 support posts, 21 support post connecting panels, 22 support posts strengthen gussets, 23 support post base plates, 24 support post rollers, 25 support posts connect lacing wires, 3 ladders, 31 ladder connecting panels, 4 bearing pins.
Detailed description of the invention
The rotary boarding ladder using method of the utility model, as shown in Figure 1, Figure 2, Figure 3, Figure 4:
The first step: according to the tidal range situation of the distance between harbour and ship side and harbour, determine the length in aisle 1, the height of setting support post 2 and ladder 3.
The overproof of certain place harbour is high tide level+2m, low tide level (LWL)-3m, and the distance between harbour and ship side is 1m, and the length in design aisle 1 is 12m, width is 0.6m, and the height of support post 2 is 1.14m, and the height of ladder 3 is 1.14m.
Second step: be connected with support post 2 with ladder 3 respectively by bearing pin 4 at the two ends in aisle 1, so that ladder 3 can rotate along with tidal range, automatically regulates ladder and the angle between aisle 1 and support post 2, meets the operation of going on board under different sea situation.
3rd step: the support post 2 be connected with one end, aisle 1 and ladder 3 are placed on distance at least 3m place, bank, wharf apron, and the support post 2 be connected with aisle 1 other end and ladder 3 are placed on ship deck; Aisle connects harbour and boats and ships between two support posts.
4th step: when ship deck B is higher than harbour bank A, the aisle 1 being positioned at A side, harbour bank is rotated up relative to harbour bank by the bearing pin 4 on this side support post 2; Be rotated down relative to ship deck by the bearing pin 4 on this side support post 2 in the aisle 1 being positioned at ship deck B side, the aisle being in level before making it is inclined, constructability operating personnel at upper and lower boats and ships at the incoming tide, as shown in Figure 3;
When ship deck B is lower than harbour bank A, the aisle 1 being located at A side, harbour bank is rotated down relative to harbour bank by the bearing pin 4 on this side support post 2; The aisle 1 being positioned at ship deck B side is rotated up relative to ship deck by the bearing pin 4 on this side support post 2, the aisle of level is in before making it, inclined after over-rotation, constructability operating personnel is upper and lower boats and ships when ebb tide, as shown in Figure 4.
5th step: handling construction operation personnel and crewman, by being placed on the ladder 3 of A side, harbour bank, arriving the ladder 3 being placed on ship deck B side, climb up boats and ships afterwards via aisle 1; Otherwise handling construction operation personnel and crewman, by being placed on the ladder 3 of ship deck B side, arriving the ladder 3 being placed on harbour bank A, can go ashore via aisle 1.
The content be not described in the utility model embodiment is prior art, therefore, no longer repeat.
The above, it is only a kind of case study on implementation of the present utility model, not any pro forma restriction is done to the utility model, every above case study on implementation is done according to technical spirit of the present utility model any simple modification, equivalent variations and modification, all still belong in the scope of technical solutions of the utility model.