CN112455604A - Telescopic ascending and taking ladder and using method - Google Patents
Telescopic ascending and taking ladder and using method Download PDFInfo
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- CN112455604A CN112455604A CN202011481373.7A CN202011481373A CN112455604A CN 112455604 A CN112455604 A CN 112455604A CN 202011481373 A CN202011481373 A CN 202011481373A CN 112455604 A CN112455604 A CN 112455604A
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- 238000000034 method Methods 0.000 title claims abstract description 19
- 230000001174 ascending effect Effects 0.000 title claims description 10
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 29
- 239000010959 steel Substances 0.000 claims abstract description 29
- 230000005484 gravity Effects 0.000 claims description 5
- 238000011084 recovery Methods 0.000 claims description 4
- 230000009194 climbing Effects 0.000 description 10
- 230000000694 effects Effects 0.000 description 5
- 238000009434 installation Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 238000006467 substitution reaction Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B27/00—Arrangement of ship-based loading or unloading equipment for cargo or passengers
- B63B27/14—Arrangement of ship-based loading or unloading equipment for cargo or passengers of ramps, gangways or outboard ladders ; Pilot lifts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B27/00—Arrangement of ship-based loading or unloading equipment for cargo or passengers
- B63B27/14—Arrangement of ship-based loading or unloading equipment for cargo or passengers of ramps, gangways or outboard ladders ; Pilot lifts
- B63B2027/141—Arrangement of ship-based loading or unloading equipment for cargo or passengers of ramps, gangways or outboard ladders ; Pilot lifts telescopically extendable
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- Ocean & Marine Engineering (AREA)
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Abstract
The invention discloses a telescopic boarding ladder and a using method thereof, and the telescopic boarding ladder comprises an L-shaped mounting plate, wherein a winch device is arranged at one end of the top of the L-shaped mounting plate, a fixing eye plate is arranged at the other end of the top of the L-shaped mounting plate, connecting plates are symmetrically arranged at two ends of the top of the outer side of the L-shaped mounting plate, the inner sides of the two groups of connecting plates are hinged with an upper ladder together, a middle ladder is arranged at one side of the upper ladder, which is far away from the winch device, and a lower ladder is arranged at one. According to the telescopic boarding ladder, the upper ladder, the middle ladder, the lower ladder, the steel wire rope, the pulley device, the second wire wheel, the first wire wheel and the sliding groove are matched for use, so that the vertical distance between the offshore platform and the cargo ship can be within any appropriate range, personnel on the cargo ship can conveniently board the offshore platform through the boarding ladder without descending to adjust the height of the offshore platform, and the functionality and the practicability of the telescopic boarding ladder are greatly improved.
Description
Technical Field
The invention relates to the technical field of boarding ladders, in particular to a telescopic boarding ladder and a using method thereof.
Background
At present, a self-elevating offshore operation platform is higher than the water surface during operation, if the self-elevating offshore operation platform is directly climbed through a suspension rope, the self-elevating offshore operation platform is very inconvenient, and sea storms are large, so that safety boarding of personnel is not facilitated, and therefore a corresponding telescopic boarding ladder is required to be used so that the boarding personnel can safely and quickly board or evacuate.
The length of the boarding ladder on the current self-elevating offshore operation platform is usually fixed, when the distance height between a cargo ship splint and an offshore platform is larger than the length of the boarding ladder, the height of the whole offshore platform is usually required to be reduced so as to be convenient for personnel on the cargo ship to board the offshore platform, and if someone accidentally falls into water, the boarding ladder with insufficient length often makes it difficult for a water-falling person to board the offshore platform again through the boarding ladder, and the length of the boarding ladder cannot be freely adjusted according to actual needs, so that the practicability and functionality of the boarding ladder are reduced; the existing boarding ladder on the self-elevating offshore operation platform is usually vertically arranged on one side of the offshore platform, personnel on a cargo ship need to be very close to the offshore platform through the boarding ladder in a vertical state, and the climbing ladder is very labor-consuming and low in safety, once wave fluctuation occurs, the cargo ship is very easy to collide with the offshore platform and is very unsafe, the inclination angle of the boarding ladder cannot be freely adjusted, and the distance between the offshore platform and the cargo ship is controlled, so that the application range of the boarding ladder is greatly reduced; meanwhile, the climbing ladder used on the current self-elevating offshore operation platform needs manpower to be extended, the functionality of the climbing ladder is low, and the application range is very limited.
Disclosure of Invention
The present invention is directed to a retractable ascending/descending ladder and a method for using the same, which solve the above-mentioned problems.
In order to achieve the purpose, the invention provides the following technical scheme: the telescopic climbing ladder comprises an L-shaped mounting plate, a winch device is mounted at one end of the top of the L-shaped mounting plate, a fixing eye plate is mounted at the other end of the top of the L-shaped mounting plate, connecting plates are symmetrically mounted at two ends of the top of the outer side of the L-shaped mounting plate, an upper ladder is hinged to the inner sides of the two groups of connecting plates together, a middle ladder is arranged at one side of the upper ladder away from the winch device, a lower ladder is arranged at one side of the middle ladder away from the upper ladder, sliding grooves are symmetrically formed in two ends of the lower ladder and the middle ladder, two groups of side plates are symmetrically mounted at two ends of the bottom of one side of the upper ladder and the middle ladder away from the winch device, guide wheels matched with the sliding grooves are mounted at the inner sides of the side plates, electric pneumatic cylinders are symmetrically hinged to the bottoms of the two ends of, the middle position department of middle part ladder and lower part ladder bottom all installs spacing layer board, pulley gear is installed to the both ends symmetry of lower part ladder bottom, the output of winch device is provided with wire rope, and the one end that wire rope kept away from the winch device behind two sets of pulley gear with the inboard fixed connection of fixed eye board.
Preferably, the top of the two ends of the lower ladder is symmetrically provided with mounting blocks, one side of each mounting block, which is close to the winch device, is provided with a second U-shaped frame, and the inner side of each second U-shaped frame is provided with two groups of second wire guide wheels which are matched with the steel wire rope.
Preferably, first U-shaped frames are symmetrically arranged on one sides, far away from the winch device, of the tops of the two groups of connecting plates, and first wire guide wheels matched with the steel wire ropes are arranged on the tops of the inner sides of the two groups of first U-shaped frames.
Preferably, the middle position department at L type mounting panel top installs the antiskid backing plate, and the both ends symmetry at antiskid backing plate top install supplementary handrail.
Preferably, the stopper is installed at the inboard top of sliding tray, and the bottom of stopper installs two sets of buffer spring, and is two sets of buffer spring's bottom is installed jointly and is mutually supported's activity slider with the sliding tray.
Preferably, four groups of fixing holes are symmetrically formed in the two ends of the top of the L-shaped mounting plate, fixing bolts are arranged on the inner sides of the fixing holes, and the L-shaped mounting plate is fixedly connected with the edge position of a ship deck through the fixing holes and the fixing bolts.
Preferably, vertical handrails are symmetrically installed at the tops of two ends of the upper ladder, and rubber anti-slip sleeves are arranged on the outer sides of the two groups of vertical handrails.
Preferably, the bottom of the inner side of the sliding groove is provided with an anti-falling block matched with the guide wheel, and the top of the anti-falling block is provided with an anti-collision pad.
Preferably, the inboard one end of being close to the upper portion ladder of connecting plate is provided with the articulated shaft, the articulated shaft comprises bearing and pivot jointly, the inboard position department of being close to the upper portion ladder of connecting plate installs the bearing, and the inboard of bearing install with upper portion ladder fixed connection's pivot.
Preferably, the using method of the telescopic boarding ladder comprises the following steps:
when personnel need to be connected from the shore or a small ship to get on the ship, an operator stands beside the ship and controls the winch device to gradually lengthen the steel wire rope through a control panel outside the winch device, at the moment, the lower ladder and the middle ladder gradually descend under the influence of gravity, and the guide wheels roll in the sliding groove in the process.
And step two, when the bottom end of the lower ladder is very close to the bank or a boat, controlling the winch device to stop lengthening the steel wire rope, and at the moment, the lower ladder and the middle ladder do not continuously descend any more, and in the whole process, the upper ladder, the middle ladder and the lower ladder are gradually unfolded and gradually approach to each other end to end.
And step three, if the personnel on the shore or the boat inconveniently crawl the lower ladder in the vertical state, the two sets of electric pneumatic cylinders are controlled to extend gradually before the lower ladder and the middle ladder descend, so that the upper ladder is gradually inclined from the original vertical state, the middle ladder and the lower ladder can also follow the inclination, and then the winch device is controlled to lengthen the steel wire rope, so that the lower ladder and the middle ladder slowly descend.
Step four, when the personnel climb the top of the upper ladder and the middle ladder in sequence, the personnel who go to the ship can hold the vertical handrail with both hands and continue to climb to the topmost part of the upper ladder, then step on the anti-slip backing plate at the top of the L-shaped mounting plate, both hands hold the auxiliary handrail on the anti-slip backing plate immediately, until the personnel completely walk onto the clamping plate of the ship, after the personnel all go to the ship, the winch device is controlled to begin to recover the steel wire rope, until the limiting support plate at the bottom of the lower ladder supports on the limiting support plate at the bottom of the middle ladder, and the limiting support plate at the bottom of the middle ladder supports at the bottom of the upper ladder, finally, the original state is shortened through controlling the electric pneumatic cylinder, so that the upper ladder, the middle ladder and the lower ladder are in a vertical state, and the folding recovery.
Compared with the prior art, the invention provides a telescopic boarding ladder and a using method thereof, and the telescopic boarding ladder has the following beneficial effects:
1. the invention controls the winch device to lengthen the steel wire rope according to the height between the boarding personnel and the offshore platform through the matching use of the upper ladder, the middle ladder, the lower ladder, the steel wire rope, the pulley device, the buffer spring, the winch device, the side plate, the fixed eye plate, the L-shaped mounting plate, the limiting support plate, the guide wheel, the connecting plate, the first U-shaped frame, the mounting block, the second U-shaped frame, the limiting block, the second wire guide wheel, the first wire guide wheel and the sliding groove, at the moment, the winch device is controlled to stop lengthening the steel wire rope until the bottom of the lower ladder descends gradually under the influence of gravity until the boarding personnel climbs conveniently, then the boarding personnel can climb on the deck of the offshore platform after passing through the lower ladder, the middle ladder and the upper ladder in sequence, thereby being very convenient and realizing that the vertical distance between the offshore platform and the cargo ship can be in any proper range, personnel on the cargo ship can conveniently climb up the offshore platform by climbing the ladder without descending to adjust the height of the offshore platform, so that the functionality and the practicability of the telescopic ladder are greatly improved.
2. According to the telescopic boarding ladder, the upper ladder, the L-shaped mounting plate, the electric pneumatic cylinder, the connecting plate and the articulated shaft are matched for use, when a cargo ship is in a safe distance with an offshore platform, the elevating structure can be matched, the inclination angle of the upper ladder can be controlled by the electric pneumatic cylinder, so that the inclination angles of the upper ladder, the middle ladder and the lower ladder can be controlled together, the bottom of the lower ladder can extend to different angles accurately, even if a certain distance exists between the cargo ship and the offshore platform, personnel on the cargo ship can climb the boarding ladder to the offshore platform safely and easily, and the practicability and the use safety of the telescopic boarding ladder are greatly improved.
3. The length and the inclination angle of the ascending ladder can be freely adjusted through a small number of parts by matching the telescopic structure and the angle adjusting structure, the length and the inclination angle of the ascending ladder do not need to be adjusted manually, personnel on freighters at different positions can conveniently ascend and descend the offshore platform, the practicability of the telescopic ascending ladder is improved, and the telescopic ascending ladder is favorable for popularization and use.
Drawings
Fig. 1 is a front view of the extended state of the boarding ladder of the present invention;
fig. 2 is a side view of the extended state of the boarding ladder of the present invention;
FIG. 3 is a side view of the shortened state of the ascending/descending ladder of the present invention;
FIG. 4 is a schematic side view of the shortened ascending/descending ladder of the present invention;
fig. 5 is a top sectional view of the boarding ladder of the present invention;
FIG. 6 is an enlarged view taken at A of FIG. 4 in accordance with the present invention;
FIG. 7 is an enlarged view of FIG. 5 at B according to the present invention.
In the figure: 1. an upper ladder; 2. a middle ladder; 3. a lower ladder; 4. a wire rope; 5. a pulley device; 6. a buffer spring; 7. a vertical armrest; 8. a winch arrangement; 9. a side plate; 10. fixing the eye plate; 11. an L-shaped mounting plate; 12. an electric pneumatic cylinder; 13. a limiting supporting plate; 14. a guide wheel; 15. a connecting plate; 16. a first U-shaped frame; 17. mounting blocks; 18. a second U-shaped frame; 19. a movable slide block; 20. a limiting block; 21. a second wire guide wheel; 22. a first wire guide wheel; 23. hinging a shaft; 24. a sliding groove.
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.
Example one
Referring to fig. 1-7, the present invention provides a technical solution: the telescopic climbing ladder comprises an L-shaped mounting plate 11, a winch device 8 is mounted at one end of the top of the L-shaped mounting plate 11, a fixing eye plate 10 is mounted at the other end of the top of the L-shaped mounting plate 11, connecting plates 15 are symmetrically mounted at two ends of the top of the outer side of the L-shaped mounting plate 11, an upper ladder 1 is hinged to the inner sides of the two groups of connecting plates 15 together, a middle ladder 2 is arranged at one side of the upper ladder 1 away from the winch device 8, a lower ladder 3 is arranged at one side of the middle ladder 2 away from the upper ladder 1, sliding grooves 24 are symmetrically formed at two ends of the lower ladder 3 and the middle ladder 2, two groups of side plates 9 are symmetrically mounted at two ends of the bottom of one side of the upper ladder 1 and the middle ladder 2 away from the winch device 8, guide wheels 14 matched with the sliding grooves 24 are mounted at the inner sides of the side plates 9, electric pneumatic cylinders 12 are hinged to the bottoms of, the middle positions of the bottoms of the middle ladder 2 and the lower ladder 3 are respectively provided with a limiting supporting plate 13, the two ends of the bottom of the lower ladder 3 are symmetrically provided with pulley devices 5, the output end of a winch device 8 is provided with a steel wire rope 4, and one end, far away from the winch device 8, of the steel wire rope 4 is fixedly connected with the inner side of a fixed eye plate 10 after passing through the two groups of pulley devices 5.
As a preferable embodiment of the present embodiment: the top symmetry at lower part ladder 3 both ends is installed and is installed installation piece 17, and the installation piece 17 is close to one side of winch device 8 and installs second U type frame 18, and two sets of second wire wheels 21 of mutually supporting with wire rope 4 are installed to the inboard of second U type frame 18, help improving the stability of wire rope 4 drive lower part ladder 3 lift in-process.
As a preferable embodiment of the present embodiment: first U-shaped frame 16 is installed to two sets of connecting plate 15 tops one side symmetry of keeping away from winch device 8, and the inboard top of two sets of first U-shaped frame 16 is provided with the first wire wheel 22 of mutually supporting with wire rope 4, helps in adjusting the back of inclination in lower part ladder 3, and wire rope 4 still can be stable drive lower part ladder 3 go up and down.
As a preferable embodiment of the present embodiment: stopper 20 is installed at the inboard top of sliding tray 24, and two sets of buffer spring 6 are installed to stopper 20's bottom, and the bottom of two sets of buffer spring 6 is installed jointly and is mutually supported activity slider 19 with sliding tray 24, helps when lower part ladder 3 and middle part ladder 2 descend too fast, cushions the power that the leading wheel 14 collided on activity slider 19, also restricts the height that lower part ladder 3 and middle part ladder 2 descend simultaneously.
Example two
Referring to fig. 1-7, the present invention provides a technical solution: the telescopic climbing ladder comprises an L-shaped mounting plate 11, a winch device 8 is mounted at one end of the top of the L-shaped mounting plate 11, a fixing eye plate 10 is mounted at the other end of the top of the L-shaped mounting plate 11, connecting plates 15 are symmetrically mounted at two ends of the top of the outer side of the L-shaped mounting plate 11, an upper ladder 1 is hinged to the inner sides of the two groups of connecting plates 15 together, a middle ladder 2 is arranged at one side of the upper ladder 1 away from the winch device 8, a lower ladder 3 is arranged at one side of the middle ladder 2 away from the upper ladder 1, sliding grooves 24 are symmetrically formed at two ends of the lower ladder 3 and the middle ladder 2, two groups of side plates 9 are symmetrically mounted at two ends of the bottom of one side of the upper ladder 1 and the middle ladder 2 away from the winch device 8, guide wheels 14 matched with the sliding grooves 24 are mounted at the inner sides of the side plates 9, electric pneumatic cylinders 12 are hinged to the bottoms of, the middle positions of the bottoms of the middle ladder 2 and the lower ladder 3 are respectively provided with a limiting supporting plate 13, the two ends of the bottom of the lower ladder 3 are symmetrically provided with pulley devices 5, the output end of a winch device 8 is provided with a steel wire rope 4, and one end, far away from the winch device 8, of the steel wire rope 4 is fixedly connected with the inner side of a fixed eye plate 10 after passing through the two groups of pulley devices 5.
As a preferable embodiment of the present embodiment: the top symmetry at lower part ladder 3 both ends is installed and is installed installation piece 17, and the installation piece 17 is close to one side of winch device 8 and installs second U type frame 18, and two sets of second wire wheels 21 of mutually supporting with wire rope 4 are installed to the inboard of second U type frame 18, help improving the stability of wire rope 4 drive lower part ladder 3 lift in-process.
As a preferable embodiment of the present embodiment: first U-shaped frame 16 is installed to two sets of connecting plate 15 tops one side symmetry of keeping away from winch device 8, and the inboard top of two sets of first U-shaped frame 16 is provided with the first wire wheel 22 of mutually supporting with wire rope 4, helps in adjusting the back of inclination in lower part ladder 3, and wire rope 4 still can be stable drive lower part ladder 3 go up and down.
As a preferable embodiment of the present embodiment: an anti-skid base plate is arranged in the middle of the top of the L-shaped mounting plate 11, and auxiliary handrails are symmetrically arranged at two ends of the top of the anti-skid base plate, so that a person climbing a ship can conveniently hold the auxiliary handrails to walk to a ship deck after climbing the top of the upper ladder 1.
As a preferable embodiment of the present embodiment: stopper 20 is installed at the inboard top of sliding tray 24, and two sets of buffer spring 6 are installed to stopper 20's bottom, and the bottom of two sets of buffer spring 6 is installed jointly and is mutually supported activity slider 19 with sliding tray 24, helps when lower part ladder 3 and middle part ladder 2 descend too fast, cushions the power that the leading wheel 14 collided on activity slider 19, also restricts the height that lower part ladder 3 and middle part ladder 2 descend simultaneously.
As a preferable embodiment of the present embodiment: four groups of fixing holes are symmetrically formed in two ends of the top of the L-shaped mounting plate 11, fixing bolts are arranged on the inner sides of the fixing holes, and the L-shaped mounting plate 11 is fixedly connected with the edge position of a ship deck through the fixing holes and the fixing bolts, so that the L-shaped mounting plate 11 can be stably mounted on the deck of a ship.
As a preferable embodiment of the present embodiment: vertical handrails 7 are symmetrically installed at the tops of two ends of the upper ladder 1, and rubber anti-skidding sleeves are arranged on the outer sides of the two groups of vertical handrails 7, so that boarding personnel can safely crawl.
As a preferable embodiment of the present embodiment: the anticreep piece of mutually supporting with leading wheel 14 is installed to the inboard bottom of sliding tray 24, and the top of anticreep piece sets up the crash pad, helps restricting the height that lower part ladder 3 and middle part ladder 2 rise.
As a preferable embodiment of the present embodiment: one end that the inboard of connecting plate 15 is close to upper portion ladder 1 is provided with articulated shaft 23, and articulated shaft 23 comprises bearing and pivot jointly, and the inboard position department that is close to upper portion ladder 1 of connecting plate 15 installs the bearing, and the inboard of bearing install with upper portion ladder 1 fixed connection's pivot, and the upper portion ladder 1 of being convenient for can use articulated shaft 23 to rotate as the axle center to change the inclination of upper portion ladder 1.
The using method of the telescopic boarding ladder comprises the following steps:
step one, when needing to connect personnel to get on the boat from a shore or a small boat, an operator stands beside the boat, controls the winch device 8 to gradually lengthen the steel wire rope 4 through a control panel outside the winch device 8, at the moment, the lower ladder 3 and the middle ladder 2 gradually descend under the influence of gravity, and the guide wheel 14 rolls in the sliding groove 24 in the process.
And step two, when the bottom end of the lower ladder 3 is very close to the bank or a boat, controlling the winch device 8 to stop lengthening the steel wire rope 4, and at the moment, the lower ladder 3 and the middle ladder 2 do not continuously descend any more, and in the whole process, the upper ladder 1, the middle ladder 2 and the lower ladder 3 are gradually unfolded and gradually close to each other end to end.
Step three, if the personnel on the bank or the boat are inconvenient to crawl the lower ladder 3 in the vertical state, two sets of electric pneumatic cylinders 12 are controlled to extend gradually before the lower ladder 3 and the middle ladder 2 descend, so that the upper ladder 1 is inclined gradually from the original vertical state, the middle ladder 2 and the lower ladder 3 can also follow the inclination, and then the winch device 8 is controlled to lengthen the steel wire rope 4, so that the lower ladder 3 and the middle ladder 2 slowly descend.
Step four, when the personnel climb the lower ladder 3 and the middle ladder 2 in sequence to reach the top of the upper ladder 1, the personnel on board can hold the vertical handrail 7 with both hands to continue to climb to the topmost part of the upper ladder 1, then step on the antiskid backing plate at the top of the L-shaped mounting plate 11 with feet, hold the auxiliary handrail on the antiskid backing plate with both hands, until the personnel completely walk onto the clamping plate of the large ship, after the personnel are all on board, the winch device 8 is controlled to start to recover the steel wire rope 4, until the limiting backing plate 13 at the bottom of the lower ladder 3 abuts against the limiting backing plate 13 at the bottom of the middle ladder 2, and the limiting backing plate 13 at the bottom of the middle ladder 2 abuts against the bottom of the upper ladder 1, and finally the original state is shortened by controlling the electric pneumatic cylinder 12, so that the upper ladder 1, the middle ladder 2 and the lower ladder 3 are in the vertical state, and the folding recovery.
The working principle is as follows: before the device is used, an operator stands beside a ship, and controls a winch device 8 to gradually lengthen a steel wire rope 4 through a control panel outside the winch device 8, at the moment, a lower ladder 3 and a middle ladder 2 lose upward force given by the steel wire rope 4, the lower ladder 3 and the middle ladder 2 gradually descend under the influence of gravity, a guide wheel 14 rolls in a sliding groove 24 in the process, when the bottom end of the lower ladder 3 is very close to the shore or a boat, the winch device 8 is controlled to stop lengthening the steel wire rope 4, at the moment, the lower ladder 3 is subjected to upward force given by the steel wire rope 4 and a pulley device 5 and does not continuously descend, in the whole process, the upper ladder 1, the middle ladder 2 and the lower ladder 3 gradually expand and gradually approach to each other end to end, if the lower ladder 3 is in a shore or a boat, the personnel on the shore or the boat cannot conveniently climb the vertical state, and two groups of electric pneumatic cylinders 12 can be controlled to gradually extend before the lower ladder 3 and the middle, so that the upper ladder 1 is inclined gradually from the original vertical state, the middle ladder 2 and the lower ladder 3 are also inclined along with the inclination, then the winch device 8 is controlled to lengthen the steel wire rope 4, so that the lower ladder 3 and the middle ladder 2 are slowly descended, a person can climb onto the large ship through the upper ladder 1, the middle ladder 2 and the lower ladder 3 conveniently, when the person sequentially climbs the lower ladder 3 and the middle ladder 2 to reach the top of the upper ladder 1, the person on the ship can hold the vertical handrail 7 with both hands to continue climbing to the topmost part of the upper ladder 1, then step on the anti-skid liner plate at the top of the L-shaped mounting plate 11, hold the auxiliary handrail on the anti-skid liner plate with both hands until the person completely walks onto the clamping plate of the large ship, after all the persons are on the ship, the original state is shortened by controlling the electric pneumatic cylinder 12, so that the upper ladder 1, the middle ladder 2 and the lower ladder 3 are in the vertical state, and finally the winch device 8 is, through wire rope 4 and pulley gear 5's cooperation, promote lower part ladder 3 and middle part ladder 2 one by one, support on the spacing layer board 13 of middle part ladder 2 bottoms to the spacing layer board 13 of lower part ladder 3 bottoms, and the spacing layer board 13 of middle part ladder 2 bottoms supports the bottom at upper portion ladder 1, accomplishes the telescopic folding recovery of riding the ladder of stepping on.
Finally, it should be noted that the above-mentioned contents are only used for illustrating the technical solutions of the present invention, and not for limiting the protection scope of the present invention, and that the simple modifications or equivalent substitutions of the technical solutions of the present invention by those of ordinary skill in the art can be made without departing from the spirit and scope of the technical solutions of the present invention.
Claims (10)
1. Telescopic ladder of taking advantage of, including L type mounting panel (11), its characterized in that: the winch device (8) is installed at one end of the top of the L-shaped mounting plate (11), the fixing eye plate (10) is installed at the other end of the top of the L-shaped mounting plate (11), the connecting plates (15) are symmetrically installed at two ends of the top of the outer side of the L-shaped mounting plate (11), the inner sides of the two groups of connecting plates (15) are hinged to the upper ladder (1) together, the middle ladder (2) is arranged on one side, away from the winch device (8), of the upper ladder (1), the lower ladder (3) is arranged on one side, away from the upper ladder (1), of the middle ladder (2), the sliding grooves (24) are symmetrically formed in two ends of the lower ladder (3) and the middle ladder (2), the two groups of side plates (9) are symmetrically installed at two ends, away from the bottom of one side of the winch device (8), of the upper ladder (1) and the middle ladder (2), and guide, the bottom symmetry at L type mounting panel (11) outside both ends articulates there are electric pneumatic cylinder (12), and the output of two sets of electric pneumatic cylinder (12) is articulated with the both ends that upper portion ladder (1) is close to winch device (8) one side respectively, intermediate position department of middle part ladder (2) and lower part ladder (3) bottom all installs spacing layer board (13), pulley gear (5) are installed to the both ends symmetry of lower part ladder (3) bottom, the output of winch device (8) is provided with wire rope (4), and wire rope (4) keep away from the inboard fixed connection of one end behind two sets of pulley gear (5) and fixed eye plate (10) of winch device (8).
2. The telescopic boarding ladder of claim 1, characterized in that: the top at both ends of the lower ladder (3) is symmetrically provided with mounting blocks (17), one side of each mounting block (17) close to the winch device (8) is provided with a second U-shaped frame (18), and the inner side of each second U-shaped frame (18) is provided with two groups of second guide wheels (21) which are matched with the steel wire rope (4).
3. The telescopic boarding ladder of claim 1, characterized in that: first U-shaped frames (16) are symmetrically arranged on one sides, far away from the winch device (8), of the tops of the two groups of connecting plates (15), and first guide wheels (22) matched with the steel wire ropes (4) are arranged on the tops of the inner sides of the two groups of first U-shaped frames (16).
4. The telescopic boarding ladder of claim 1, characterized in that: the middle position department at L type mounting panel (11) top installs anti-skidding backing plate, and the both ends symmetry at anti-skidding backing plate top installs supplementary handrail.
5. The telescopic boarding ladder of claim 1, characterized in that: stopper (20) are installed at the top of sliding tray (24) inboard, and two sets of buffer spring (6) are installed to the bottom of stopper (20), and are two sets of buffer spring (6)'s bottom is installed jointly and is mutually supported movable slider (19) with sliding tray (24).
6. The telescopic boarding ladder of claim 1, characterized in that: four groups of fixing holes are symmetrically formed in two ends of the top of the L-shaped mounting plate (11), fixing bolts are arranged on the inner sides of the fixing holes, and the L-shaped mounting plate (11) is fixedly connected with the edge position of a ship deck through the fixing holes and the fixing bolts.
7. The telescopic boarding ladder of claim 1, characterized in that: vertical handrails (7) are symmetrically installed at the tops of two ends of the upper ladder (1), and rubber anti-skidding sleeves are arranged on the outer sides of the two groups of vertical handrails (7).
8. The telescopic boarding ladder of claim 1, characterized in that: the bottom of sliding tray (24) inboard is installed and is mutually supported with leading wheel (14) anticreep piece, and the top of anticreep piece sets up the crash pad.
9. The telescopic boarding ladder of claim 1, characterized in that: one end that connecting plate (15) inboard is close to upper portion ladder (1) is provided with articulated shaft (23), articulated shaft (23) comprise bearing and pivot jointly, the inboard position department of being close to upper portion ladder (1) of connecting plate (15) installs the bearing, and the inboard of bearing install with upper portion ladder (1) fixed connection's pivot.
10. The using method of the telescopic boarding ladder comprises the following steps:
step one, when personnel need to be connected from a shore or a small ship to get on the ship, an operator stands beside the ship, controls a winch device (8) to gradually lengthen a steel wire rope (4) through a control panel on the outer side of the winch device (8), at the moment, a lower ladder (3) and a middle ladder (2) gradually descend under the influence of gravity, and a guide wheel (14) rolls in a sliding groove (24) in the process;
step two, when the bottom end of the lower ladder (3) is very close to the bank or a boat, controlling the winch device (8) to stop lengthening the steel wire rope (4), and at the moment, the lower ladder (3) and the middle ladder (2) do not continuously descend any more, wherein in the whole process, the upper ladder (1), the middle ladder (2) and the lower ladder (3) are gradually unfolded and gradually approach to each other end to end;
step three, if the lower ladder (3) in the vertical state is inconvenient to climb by personnel on the shore or a boat, two groups of electric pneumatic cylinders (12) are controlled to extend gradually before the lower ladder (3) and the middle ladder (2) descend, so that the upper ladder (1) is gradually inclined from the original vertical state, the middle ladder (2) and the lower ladder (3) can also be inclined along with the inclination, and then a winch device (8) is controlled to lengthen a steel wire rope (4), so that the lower ladder (3) and the middle ladder (2) slowly descend;
step four, when a person climbs the lower ladder (3) and the middle ladder (2) in sequence to reach the top of the upper ladder (1), a person on board can hold the vertical handrails (7) with both hands to continuously climb to the topmost part of the upper ladder (1), then step on the antiskid backing plate at the top of the L-shaped mounting plate (11), hold the auxiliary handrails on the antiskid backing plate with both hands, until the person completely walks onto the clamping plate of the large ship, after the person is completely on board, control the winch device (8) to start to recover the steel wire rope (4) until the limiting support plate (13) at the bottom of the lower ladder (3) is supported on the limiting support plate (13) at the bottom of the middle ladder (2), and the limiting support plate (13) at the bottom of the middle ladder (2) is supported on the bottom of the upper ladder (1), and finally shorten to the original state by controlling the electric pneumatic cylinder (12), so that the upper ladder (1), the middle ladder (2) and the lower ladder (3) are in a vertical state, thereby completing the folding and the recovery of the telescopic ascending ladder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011481373.7A CN112455604A (en) | 2020-12-15 | 2020-12-15 | Telescopic ascending and taking ladder and using method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011481373.7A CN112455604A (en) | 2020-12-15 | 2020-12-15 | Telescopic ascending and taking ladder and using method |
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| CN112455604A true CN112455604A (en) | 2021-03-09 |
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| CN202011481373.7A Pending CN112455604A (en) | 2020-12-15 | 2020-12-15 | Telescopic ascending and taking ladder and using method |
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| CN113428299A (en) * | 2021-06-24 | 2021-09-24 | 江苏华燕船舶装备有限公司 | Marine ladder of taking advantage of stepping on |
| CN115158559A (en) * | 2022-08-19 | 2022-10-11 | 上海外高桥造船有限公司 | Vertical ladder, accommodation side channel and ship |
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