CN107298155B - Emergency folding boarding ladder - Google Patents
Emergency folding boarding ladder Download PDFInfo
- Publication number
- CN107298155B CN107298155B CN201710344936.XA CN201710344936A CN107298155B CN 107298155 B CN107298155 B CN 107298155B CN 201710344936 A CN201710344936 A CN 201710344936A CN 107298155 B CN107298155 B CN 107298155B
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- CN
- China
- Prior art keywords
- boarding ladder
- main
- rod
- main body
- hinged
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
- B63B27/146—Pilot ladders or similar outboard ladders, e.g. bathing ladders; Pilot lifts
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B50/00—Energy efficient technologies in elevators, escalators and moving walkways, e.g. energy saving or recuperation technologies
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Ladders (AREA)
Abstract
The invention relates to a ladder, in particular to an emergency folding boarding ladder, which comprises three boarding ladder main bodies which are transversely arranged, wherein two sides of the boarding ladder main body positioned in the middle are respectively hinged with the other two boarding ladder main bodies. The boarding ladder main bodies at the two sides can be used as handrails or guardrails of the boarding ladder main bodies at the middle positions, and when the traffic is required to be expanded, the boarding ladder main bodies at the two sides are unfolded, and meanwhile, the guardrails are unfolded, so that the traffic of the folding boarding ladder disclosed by the invention is conveniently expanded. When the traffic is not required to be expanded, the boarding ladder main bodies on two sides are folded and retracted, and the boarding ladder is conveniently stored when the boarding ladder main body guardrail state at the middle position is changed.
Description
Technical Field
The invention relates to a ladder, in particular to an emergency folding boarding ladder.
Background
The boarding ladder is a special device which is indispensable for safe and smooth boarding and disembarking of ships for wharf operators and crews in the wharf operation process after the ships are moored in various modern large wharfs. When an emergency occurs on the shore or a ship, a large amount of personnel can squeeze to the boarding ladder, because the allowable traffic of the boarding ladder is fixed at present, safety accidents can occur when the personnel crowds on the boarding ladder, and the safety hazards of life and property of the personnel are brought.
Disclosure of Invention
Aiming at the problem of fixed boarding ladder flux at present, the invention aims to provide an emergency folding boarding ladder.
The emergency folding boarding ladder comprises three boarding ladder bodies which are transversely arranged, wherein two sides of the boarding ladder body positioned in the middle are respectively hinged with the other two boarding ladder bodies;
the boarding ladder comprises a boarding ladder main body and a plurality of fixing support groups, wherein the boarding ladder main body comprises more than two pedals and the fixing support groups used for fixing the pedals, the fixing support groups are respectively arranged at the left end and the right end of the pedals, each fixing support group comprises a main support rod and an auxiliary support rod which are mutually parallel, the main support rod and the auxiliary support rod in each fixing support group are hinged with the pedals, the head end and the tail end of each main support rod are respectively and movably connected with the head end and the tail end of each auxiliary support rod through a connecting rod, and the main support rods, the auxiliary support rods and the connecting rods form a parallel four-bar mechanism;
a limiting bump is arranged at the hinge position of the boarding ladder main body positioned in the middle position and the other two boarding ladder main bodies; on the boarding ladder main body positioned at two sides, a guardrail is hinged on the main support rod positioned at the outer side, and the extending direction of the guardrail is the same as the direction of the main support rod body.
Further, one end of the connecting rod is hinged to the inner side of the main supporting rod, and the other end of the connecting rod is hinged to the outer side of the auxiliary supporting rod; the connecting rod is provided with pin holes, the inner side of the main support is provided with an arc pin hole array, and the pin holes on the connecting rod correspond to the arc pin hole array on the inner side of the main support.
Therefore, the expansion and retraction of the pedal can be fixed, and the expansion angle of the pedal is adjusted through the arc-shaped pin hole array.
Further, scale marks are carved on the outer edge of the arc-shaped pin hole array on the inner side of the main support. Through setting up the scale mark, the convenience is adjusted the expansion angle of footboard.
Further, on the boarding ladder main body positioned at two sides, a short rod hook is hinged at the end of the main rod positioned at the inner side; on the boarding ladder main body positioned at the middle position, a first hanging ring matched with the short rod hook is arranged at the end of the main support rod.
When boarding ladder main bodies on two sides are vertically placed, the short rod hooks hook the first hanging ring, so that the boarding ladder main bodies in the middle, boarding ladder main bodies on the sides and the short rod hooks form a triangular fixing relationship, and the boarding ladder main bodies on the sides are fixed to serve as the boarding ladder main body guardrail in the middle.
Further, a long rod hook is hung on the guardrail, a second hanging ring matched with the long rod hook is arranged on the outer side of a main support rod hinged with the guardrail, a third hanging ring matched with the long rod hook is arranged above the main support rod on the boarding ladder main body in the middle.
The position of the guardrail is adjusted and fixed by arranging the long rod hook, after the guardrail is unfolded, the long rod hook hooks the second hook, and the unfolded state of the guardrail is fixed; after the guardrails are retracted, the boarding ladder main bodies at the two sides are vertically placed, the long rod hooks are hooked on the third hooks, the guardrails are fixed, and the vertical states of the boarding ladder main bodies at the two sides are further fixed.
Further, the lower end of the main support rod and the lower end of the auxiliary support rod are provided with rubber heads, and when the main support and the auxiliary support are supported on the ground or other equipment, the rubber heads are prevented from being in hard contact with the ground or other equipment.
The invention has the beneficial effects that:
by arranging the emergency folding boarding ladder provided by the invention, three boarding ladder bodies which are transversely arranged are arranged, when the boarding ladder bodies at two sides are vertically placed and the guardrails are retracted, the emergency folding boarding ladder can be used as handrails or guardrails of the boarding ladder bodies at the middle position, and when the traffic is required to be expanded, the boarding ladder bodies at two sides are expanded, and meanwhile, the guardrails are expanded, so that the traffic of the folding boarding ladder provided by the invention is conveniently expanded. When the traffic is not required to be expanded, the boarding ladder main bodies on two sides are folded and retracted, and the boarding ladder is conveniently stored when the boarding ladder main body guardrail state at the middle position is changed.
Drawings
FIG. 1 is a schematic view of an emergency folding boarding ladder according to the invention;
FIG. 2 is an enlarged schematic view of a portion of FIG. 1 at A;
FIG. 3 is a schematic view of the emergency folding boarding ladder of the present invention with boarding ladder bodies in two side positions in a vertical position;
FIG. 4 is an enlarged partial schematic view at B in FIG. 3;
FIG. 5 is a schematic view of the emergency folding boarding ladder of the present invention with the boarding ladder body deployed in both side positions;
marked in the figure as: the boarding ladder comprises a boarding ladder main body 1, a main supporting rod 2, a secondary supporting rod 3, a pedal 4, a limiting lug 5, a guardrail 6, an arc-shaped pin hole array 7, a short rod hook 8, a first hanging ring 9, a long rod hook 10, a second hanging ring 11, a third hanging ring 12, a rubber head 13 and a connecting rod 14.
Detailed Description
In order that the objects, technical solutions and advantages of the present invention may become more apparent, the present invention will be further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the present invention.
In the description of the present invention, it should be understood that the terms "one end," "center," "circumferential," "upper," "inner," "outer," "other end," "middle," "top," "one side," and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, merely to facilitate description of the present invention and simplify the description, and do not indicate or imply that the devices or elements being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
1-5, an emergency folding boarding ladder comprises three boarding ladder bodies 1 which are transversely arranged, wherein two sides of the boarding ladder body 1 positioned in the middle are respectively hinged with the other two boarding ladder bodies 1.
The number of hinges used for hinging the three boarding ladder main bodies 1 can be determined according to the weight, the strength and the like of the boarding ladder main bodies 1, namely, the boarding ladder main bodies 1 at two side positions can stably rotate and turn over, and the emergency folding boarding ladder has enough strength.
The boarding ladder main body 1 comprises a main support, an auxiliary support and a pedal 4, wherein the main support consists of two main support rods 2 which are oppositely arranged, the auxiliary support consists of two auxiliary support rods 3 which are oppositely arranged, the two main support rods 2 are connected through one side of the pedal 4, and the two auxiliary support rods 3 are connected through the other side of the pedal 4; the main support rod 2 is parallel to the auxiliary support rod 3, and the pedals 4 are arranged along the rod body direction of the main support rod 2. This facilitates the storage of boarding ladder body 1.
In the boarding ladder main bodies 1 which are transversely arranged, limit lugs 5 are arranged at the positions, which are positioned at the middle positions, of the outer sides of the boarding ladder main bodies 1 and are hinged with the other two boarding ladder main bodies 1; on the boarding ladder main body 1 positioned at two sides, a guardrail 6 is hinged on the main support 2 positioned at the outer side, and the extending direction of the guardrail 6 is the same as the direction of the main support 2. This is to prevent the boarding ladder main body 1 located at both sides from continuing to turn down.
The head end and the tail end of the main support rod 2 are respectively connected with the auxiliary support rod 3 through a connecting rod 14, one end of the connecting rod 14 is hinged to the inner side of the main support rod 2, and the other end of the connecting rod is hinged to the outer side of the auxiliary support rod 3; the connecting rod 14 is provided with pin holes, the inner side of the main support 2 is provided with an arc pin hole array 7, and the pin holes on the connecting rod 14 correspond to the arc pin hole array 7 on the inner side of the main support 2. This is in order to fix expansion and the withdrawal of footboard 4, carries out the expansion angle adjustment of footboard 4 through arc pinhole array 7, sets up different angles to adapt to different bank and boats and ships distance, improve the application scope of this folding boarding ladder of emergency, when adjusting footboard 4 angle, with the bolt intubate corresponding pinhole can. The pin holes of the arc pin hole array 7 are arranged according to actual needs. Graduation lines are carved on the outer edge of the arc-shaped pin hole array 7 on the inner side of the main support 2.
On the boarding ladder main body 1 positioned at two sides, the end head of the main support 2 positioned at the inner side is hinged with a short support hook 8; on the boarding ladder main body 1 in the middle position, the end head of the main support rod 2 is provided with a first hanging ring 9 which is matched with the short rod hook 8.
When boarding ladder main body 1 on both sides is placed vertically, short rod hook 8 hooks first hanging ring 9, thus boarding ladder main body 1 in the middle, boarding ladder main body 1 on the side and short rod hook 8 form a triangle fixed relation, boarding ladder main body 1 on the side is fixed as the state of boarding ladder main body 1 guardrail 6 in the middle.
A long rod hook 10 is suspended on the guardrail 6, a second hanging ring 11 matched with the long rod hook 10 is arranged on the outer side of the main support 2 hinged with the guardrail 6, and a third hanging ring 12 matched with the long rod hook 10 is arranged above the main support 2 on the boarding ladder main body 1 positioned in the middle.
The position of the guardrail 6 is adjusted and fixed by arranging the long-rod hook 10, after the guardrail 6 is unfolded, the long-rod hook 10 hooks the second hook, and the unfolded state of the guardrail 6 is fixed; after the guardrails 6 are retracted, the boarding ladder main body 1 at the two sides is vertically placed, the long rod hooks 10 hook the third hooks, the guardrails 6 are fixed, and the vertical state of the boarding ladder main body 1 at the two sides is further fixed.
The lower end of the main support 2 and the lower end of the auxiliary support 3 are provided with rubber heads 13, and when the main support and the auxiliary support are supported on the ground or other equipment, the ends are prevented from being in hard contact with the ground or other equipment.
When the ladder is used in a general state, the boarding ladder main body 1 positioned at two sides can be vertically arranged for convenient movement and storage, the short rod hook 8 is utilized to hook the first hanging ring 9, the long rod hook 10 is utilized to hook the third hanging ring 12, and the boarding ladder main body 1 positioned at two sides is fixed in a vertically arranged state. When the allowable traffic of the emergency folding boarding ladder is required to be expanded, the short rod hooks 8 are separated from the first hanging rings 9, the long rod hooks 10 are separated from the third hanging rings 12, the emergency folding boarding ladder is unfolded, the guardrails 6 are unfolded, and the long rod hooks 10 hook the second hooks, so that the traffic of the folding boarding ladder is conveniently expanded, and when an emergency occurs, the boarding ladder with the expanded allowable traffic can reduce the probability of safety accidents when people pass through the boarding ladder.
Claims (4)
1. An emergent folding boarding ladder which is characterized in that: comprises three boarding ladder main bodies (1) which are transversely arranged, wherein two sides of the boarding ladder main body (1) positioned in the middle are respectively hinged with the other two boarding ladder main bodies (1); the boarding ladder comprises a boarding ladder main body (1) and a plurality of fixing bracket groups, wherein the fixing bracket groups comprise more than two pedals (4) and are used for fixing the pedals (4), the fixing bracket groups are respectively arranged at the left end and the right end of the pedals (4), each fixing bracket group comprises a main supporting rod (2) and an auxiliary supporting rod (3) which are parallel to each other, the main supporting rods (2) and the auxiliary supporting rods (3) in each fixing bracket group are hinged with the pedals (4), the head end and the tail end of each main supporting rod (2) are respectively movably connected with the head end and the tail end of each auxiliary supporting rod (3) through a connecting rod (14), and the main supporting rods (2), the auxiliary supporting rods (3) and the connecting rods (14) form a parallel four-connecting rod mechanism; a limiting lug (5) is arranged at the hinge joint of the boarding ladder main body (1) positioned at the middle position and the other two boarding ladder main bodies (1); on the boarding ladder main body (1) positioned at two sides, a guardrail (6) is hinged on the main support (2) positioned at the outer side, and the extending direction of the guardrail (6) is the same as the direction of the main support (2) shaft; on the boarding ladder main body (1) positioned at two sides, the end head of the main support (2) positioned at the inner side is hinged with a short rod hook (8); on the boarding ladder main body (1) positioned in the middle position, a first hanging ring (9) matched with the short rod hook (8) is arranged at the end head of the main support (2); the guardrail (6) is suspended with a long rod hook (10), a second hanging ring (11) matched with the long rod hook (10) is arranged on the outer side of a main support (2) hinged with the guardrail (6), and a third hanging ring (12) matched with the long rod hook (10) is arranged above the main support (2) on the boarding ladder main body (1) in the middle.
2. An emergency folding boarding ladder of claim 1, wherein: one end of the connecting rod (14) is hinged to the inner side of the main supporting rod (2), and the other end of the connecting rod is hinged to the outer side of the auxiliary supporting rod (3); the connecting rod (14) is provided with pin holes, the inner side of the main support (2) is provided with an arc pin hole array (7), and the pin holes on the connecting rod (14) correspond to the arc pin hole array (7) on the inner side of the main support (2).
3. An emergency folding boarding ladder of claim 2, wherein: scale marks are carved on the outer edge of the arc-shaped pin hole array (7) on the inner side of the main support (2).
4. An emergency folding boarding ladder of claim 1, wherein: the lower end of the main supporting rod (2) and the lower end of the auxiliary supporting rod (3) are provided with rubber heads (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710344936.XA CN107298155B (en) | 2017-05-16 | 2017-05-16 | Emergency folding boarding ladder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710344936.XA CN107298155B (en) | 2017-05-16 | 2017-05-16 | Emergency folding boarding ladder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107298155A CN107298155A (en) | 2017-10-27 |
| CN107298155B true CN107298155B (en) | 2023-07-18 |
Family
ID=60137437
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710344936.XA Active CN107298155B (en) | 2017-05-16 | 2017-05-16 | Emergency folding boarding ladder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107298155B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113911270B (en) * | 2021-10-15 | 2023-02-10 | 天长市平安船舶设备有限公司 | Marine bulwark ladder convenient to accomodate |
| CN113998060B (en) * | 2021-10-28 | 2024-07-05 | 中船黄埔文冲船舶有限公司 | Accommodation ladder is stepped on to movable |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU3995778A (en) * | 1978-09-19 | 1980-03-27 | Grant G L | Divers boat boarding ladder |
| WO2010098539A2 (en) * | 2009-02-24 | 2010-09-02 | (주)한마루무역 | Folding stairs |
| KR101539696B1 (en) * | 2015-02-05 | 2015-08-26 | 이욱창 | Lifesaving ladder for ship |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB963032A (en) * | 1961-05-23 | 1964-07-08 | Chables Gardiner Harmer | Improvements in or relating to collapsible ladders |
| DE4416426A1 (en) * | 1994-05-10 | 1995-11-16 | Tellenbach Jomy Gmbh | Folding staircase for interior or exterior use |
| EP0941920A3 (en) * | 1998-03-12 | 2002-01-16 | Horacio E. Bozzo | Stair assembly for marine craft |
| DE29819573U1 (en) * | 1998-11-03 | 1999-05-06 | Bollhorn, Ralf, 22419 Hamburg | Combination of an extendable bow ladder and transport cart for boats |
| JP2001329772A (en) * | 2000-05-19 | 2001-11-30 | Alinco Inc | Folding ladder |
| DE102010040899A1 (en) * | 2010-09-16 | 2012-03-22 | Aloys Wobben | Ship, as well as gangway for the same |
| US9067647B2 (en) * | 2013-03-14 | 2015-06-30 | Grady-White Boats, Inc. | Portable boat ladder |
| US10041296B2 (en) * | 2014-04-18 | 2018-08-07 | Chang Ho Anh | Aerial-ladder truck with bed extensions |
| CN205499324U (en) * | 2016-03-31 | 2016-08-24 | 成都富力威航科技有限公司 | Novel gangway ladder footboard folding mechanism |
| CN205743680U (en) * | 2016-05-17 | 2016-11-30 | 重庆西华皮带轮机械制造有限公司 | A kind of Foldable '*' shape ladder |
| CN205930519U (en) * | 2016-07-08 | 2017-02-08 | 江苏捷诚车载电子信息工程有限公司 | Companion -way is stepped on to collapsible handrail |
| CN106275289A (en) * | 2016-08-26 | 2017-01-04 | 南通力威机械有限公司 | A kind of full circle swinging telescopic gangway ladder |
| CN206691331U (en) * | 2017-05-16 | 2017-12-01 | 成都协恒科技有限公司 | Expansion folds boarding ladder |
-
2017
- 2017-05-16 CN CN201710344936.XA patent/CN107298155B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU3995778A (en) * | 1978-09-19 | 1980-03-27 | Grant G L | Divers boat boarding ladder |
| WO2010098539A2 (en) * | 2009-02-24 | 2010-09-02 | (주)한마루무역 | Folding stairs |
| KR101539696B1 (en) * | 2015-02-05 | 2015-08-26 | 이욱창 | Lifesaving ladder for ship |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107298155A (en) | 2017-10-27 |
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