CN113815789A - Boarding ladder lifting anti-falling device and boarding ladder - Google Patents
Boarding ladder lifting anti-falling device and boarding ladder Download PDFInfo
- Publication number
- CN113815789A CN113815789A CN202111190560.4A CN202111190560A CN113815789A CN 113815789 A CN113815789 A CN 113815789A CN 202111190560 A CN202111190560 A CN 202111190560A CN 113815789 A CN113815789 A CN 113815789A
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- CN
- China
- Prior art keywords
- lifting
- falling
- boarding ladder
- wheel set
- tower
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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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F11/00—Lifting devices specially adapted for particular uses not otherwise provided for
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F13/00—Common constructional features or accessories
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F17/00—Safety devices, e.g. for limiting or indicating lifting force
- B66F17/006—Safety devices, e.g. for limiting or indicating lifting force for working platforms
Abstract
The invention is suitable for the technical field of anti-falling devices, and provides a boarding ladder lifting anti-falling device, which comprises a mounting frame and also comprises: the connecting part comprises a lifting wheel set, and the lifting wheel set is connected with the upper part of the mounting frame; the clamping part comprises a second mounting shaft arranged at the lower part of the mounting frame, two anti-falling bolts are rotatably arranged on the second mounting shaft and symmetrically arranged on the second mounting shaft, pin shafts are arranged on the anti-falling bolts, lifting guide rails are arranged on two sides of the mounting frame, and bolt holes matched with the anti-falling bolts are formed in the lifting guide rails; and the spring cylinder is arranged at the bottom of the mounting frame. The device effectively avoids the falling of the lift truck, and has good use effect and long service life.
Description
Technical Field
The invention belongs to the technical field of anti-falling devices, and particularly relates to a boarding ladder lifting anti-falling device and a boarding ladder.
Background
The boarding ladder is connected with the wharf and the ship channel and is used for personnel to pass through; because the berthed ships have different sizes and different tide levels, the boarding ladder platform is of a lifting type, and a winch is used for lifting the platform through a steel wire rope.
In order to ensure the safe and reliable operation of the lift truck, the steel wire rope is prevented from being accidentally broken to cause casualties; and adding a falling prevention device. At present, each boarding ladder uses a speed monitor and a safety guide shoe device to simulate a floor elevator anti-falling device.
However, the device is used for indoor equipment, is placed on the wharf surface, has a place where salt mist is easy to corrode, and has a very short service life. And the occasion of using the boarding ladder is electrically required to be explosion-proof control equipment, and the current speed monitor has no explosion-proof product.
Disclosure of Invention
The embodiment of the invention aims to provide a boarding ladder lifting anti-falling device and a boarding ladder, and aims to solve the problems that the existing boarding ladder anti-falling device is placed on a wharf surface, is easily corroded by salt mist, has extremely short service life, is required to be an explosion-proof control device in a use occasion of the boarding ladder, and has no explosion-proof product in a speed monitor at present.
The embodiment of the invention is realized in such a way that the boarding ladder lifting anti-falling device comprises an installation frame and also comprises:
the connecting part comprises a lifting wheel set, and the lifting wheel set is connected with the upper part of the mounting frame;
the clamping part comprises a second mounting shaft arranged at the lower part of the mounting frame, two anti-falling bolts are rotatably arranged on the second mounting shaft and symmetrically arranged on the second mounting shaft, pin shafts are arranged on the anti-falling bolts, lifting guide rails are arranged on two sides of the mounting frame, and bolt holes matched with the anti-falling bolts are formed in the lifting guide rails; and
and the spring cylinder is arranged at the bottom of the mounting frame.
According to the technical scheme, a first installation shaft is installed on the upper portion of the installation frame, and the lifting wheel sleeve in the lifting wheel set is arranged on the first installation shaft.
According to the further technical scheme, reinforcing ribs are arranged outside the side wall of the mounting rack.
According to a further technical scheme, one end, far away from the second mounting shaft, of the anti-falling bolt is obliquely arranged.
Another object of the embodiment of the invention is to provide a boarding ladder, which comprises a tower frame and the above anti-falling device, wherein the lifting guide rails are symmetrically installed on the tower frame, a lift truck is installed on the tower frame, and the tower frame is connected with the anti-falling device.
According to the technical scheme, the tower is provided with a lifting device, the lifting device comprises a guide wheel set and a lifting winch, the guide wheel set is installed at the top of the tower and connected with the lifting wheel set, the lifting winch is arranged at the bottom of the tower and connected with the guide wheel set.
According to the boarding ladder lifting anti-falling device and the boarding ladder provided by the embodiment of the invention, when a lift truck normally works, the spring cylinder keeps a compression force storage state under the action of the tension of a steel wire rope in the lifting wheel set, the anti-falling bolts are in a contraction state, and the maximum distance between the edges of the two anti-falling bolts after contraction is smaller than the distance between the two lifting guide rails, so that the device can normally move in a track; when the steel wire rope is broken, the spring cylinder rapidly rebounds from a force accumulation state, the anti-falling bolt is unfolded from a contraction state and inserted into a bolt hole in the lifting guide rail in the sliding process, the movement can be stopped, and the anti-falling is instantly realized when the load is lost. The device effectively avoids the falling of the lift truck, and has good use effect and long service life.
Drawings
Fig. 1 is a schematic structural view of a boarding ladder lift fall prevention device provided by an embodiment of the invention;
fig. 2 is a schematic structural view of a contracted state of a boarding ladder lifting fall prevention device provided by an embodiment of the invention;
fig. 3 is a schematic structural view of an opened state of the boarding ladder lifting fall prevention device provided by the embodiment of the invention;
fig. 4 is a schematic structural view of a boarding ladder according to an embodiment of the present invention;
fig. 5 is a schematic structural view of the engagement between the fall preventing device and the lift car in the boarding ladder according to the embodiment of the present invention.
In the drawings: a mounting frame 1; a lifting wheel 2; an anti-falling bolt 3; a pin shaft 4; a spring cylinder 5; a first mounting shaft 6; a second mounting shaft 7; a lifting guide rail 8; a latch hole 9; a lift truck 10; a lifting wheel set 11; a tower 12; a guide wheel group 13; the winch 14 is lifted.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Specific implementations of the present invention are described in detail below with reference to specific embodiments.
As shown in fig. 1 to 4, the lift anti-falling device for a boarding ladder according to an embodiment of the present invention includes an installation frame 1, and further includes:
the connecting part comprises a lifting wheel set 11, and the lifting wheel set 11 is connected with the upper part of the mounting frame 1;
the anti-falling device comprises an installation frame 1, a clamping part and a lifting guide rail, wherein the clamping part comprises a second installation shaft 7 arranged at the lower part of the installation frame 1, two anti-falling bolts 3 are rotatably arranged on the second installation shaft 7, the two anti-falling bolts 3 are symmetrically arranged on the second installation shaft 7, pin shafts 4 are arranged on the anti-falling bolts 3, the lifting guide rail 8 is arranged at two sides of the installation frame 1, and bolt holes 9 matched with the anti-falling bolts 3 are formed in the lifting guide rail 8; and
and the spring cylinder 5 is arranged at the bottom of the mounting frame 1.
In the embodiment of the present invention, the upper portion of the mounting bracket 1 is mounted with a first mounting shaft 6, and the lifting wheel 2 of the lifting wheel set 11 is sleeved on the first mounting shaft 6. And reinforcing ribs are arranged outside the side wall of the mounting rack 1. Prevent weighing down bolt 3 and keep away from the slope setting of the one end of second installation axle 7. When the lift truck 10 works normally, the spring cylinder 5 keeps a compression force storage state under the action of the tension of a steel wire rope in the lifting wheel set 11, the anti-falling bolts 3 are in a contraction state, and the maximum distance between the edges of the two anti-falling bolts 3 after the contraction is smaller than the distance between the two lifting guide rails 8, so that the device can move normally in a track; when the steel wire rope is broken, the spring cylinder 5 rebounds rapidly from a force accumulation state, the anti-falling bolt 3 is unfolded from a contraction state and inserted into the bolt hole 9 on the lifting guide rail 8 in the sliding process, the bolt 1 stops moving, and the anti-falling is achieved instantly when the load is lost.
As shown in fig. 4 and 5, an embodiment of the present invention further provides a boarding ladder, which includes a tower 12 and the above-mentioned fall-preventing device, and the lifting guide rails 8 are symmetrically installed on the tower 12, the lift truck 10 is installed on the tower 12, and the tower 12 is connected with the fall-preventing device.
In the embodiment of the present invention, a lifting device is disposed on the tower 12, the lifting device includes a guide wheel set 13 and a lifting winch 14, the guide wheel set 13 is mounted on the top of the tower 12, the guide wheel set 13 is connected to the lifting wheel set 11, the lifting winch 14 is disposed at the bottom of the tower 12, and the lifting winch 14 is connected to the guide wheel set 13. The hoisting winch 14 drives the steel wire rope to move, the steel wire rope drives the hoisting wheel set 11 to move through the guide wheel set 13, and the hoisting wheel set 11 drives the hoisting wheel set 11 to move through the anti-falling device, so that the lifting is realized.
The working principle is as follows: when the lift truck 10 works normally, the spring cylinder 5 keeps a compression force storage state under the action of the tension of a steel wire rope in the lifting wheel set 11, the anti-falling bolts 3 are in a contraction state, and the maximum distance between the edges of the two anti-falling bolts 3 after the contraction is smaller than the distance between the two lifting guide rails 8, so that the device can move normally in a track; when the steel wire rope is broken, the spring cylinder 5 rebounds rapidly from a force accumulation state, the anti-falling bolt 3 is unfolded from a contraction state and inserted into the bolt hole 9 on the lifting guide rail 8 in the sliding process, the bolt 1 stops moving, and the anti-falling is achieved instantly when the load is lost.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (7)
1. The utility model provides a boarding ladder goes up and down anti-falling device, includes the mounting bracket, its characterized in that still includes:
the connecting part comprises a lifting wheel set, and the lifting wheel set is connected with the upper part of the mounting frame;
the clamping part comprises a second mounting shaft arranged at the lower part of the mounting frame, two anti-falling bolts are rotatably arranged on the second mounting shaft and symmetrically arranged on the second mounting shaft, pin shafts are arranged on the anti-falling bolts, lifting guide rails are arranged on two sides of the mounting frame, and bolt holes matched with the anti-falling bolts are formed in the lifting guide rails; and
and the spring cylinder is arranged at the bottom of the mounting frame.
2. The boarding ladder lift anti-fall device according to claim 1, wherein a first mounting shaft is mounted on an upper portion of the mounting frame, and a lifting wheel of the lifting wheel set is sleeved on the first mounting shaft.
3. The boarding ladder lift fall arrest device of claim 2, wherein the side walls of the mounting bracket are externally provided with reinforcing ribs.
4. The boarding ladder lift fall arrest device of claim 1, wherein the end of the fall arrest pin remote from the second mounting shaft is angled.
5. A boarding ladder is characterized by comprising a tower and the anti-falling device, wherein the lifting guide rails are symmetrically arranged on the tower, a lifting vehicle is arranged on the tower, and the tower is connected with the anti-falling device.
6. The boarding ladder of claim 5, wherein a lifting device is provided on the tower.
7. The boarding ladder of claim 6, wherein the lifting device comprises a guide wheel set and a lifting winch, the guide wheel set is mounted at the top of the tower and connected with the lifting wheel set, the lifting winch is arranged at the bottom of the tower and connected with the guide wheel set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111190560.4A CN113815789A (en) | 2021-10-13 | 2021-10-13 | Boarding ladder lifting anti-falling device and boarding ladder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111190560.4A CN113815789A (en) | 2021-10-13 | 2021-10-13 | Boarding ladder lifting anti-falling device and boarding ladder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113815789A true CN113815789A (en) | 2021-12-21 |
Family
ID=78920443
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111190560.4A Pending CN113815789A (en) | 2021-10-13 | 2021-10-13 | Boarding ladder lifting anti-falling device and boarding ladder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113815789A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201592768U (en) * | 2010-01-20 | 2010-09-29 | 无锡沪联机械设备有限公司 | Safety device of boarding ladder elevator mechanism |
| CN201674194U (en) * | 2010-05-10 | 2010-12-15 | 青岛港（集团）有限公司 | Boarding ladder cable anti-groove jumping device |
| US20130047909A1 (en) * | 2010-01-13 | 2013-02-28 | Peter A. Mueller | Light-weight platform having stairs |
| CN202765241U (en) * | 2012-07-17 | 2013-03-06 | 连云港振兴集团石化设备制造有限公司 | Falling prevention device for boarding ladder |
| CN205292986U (en) * | 2015-12-31 | 2016-06-08 | 连云港步升机械有限公司 | Step on ship's ladder safety couple |
| CN207875930U (en) * | 2017-07-11 | 2018-09-18 | 苏州瀚隆石化装备有限公司 | A kind of novel boarding ladder |
| US20190233266A1 (en) * | 2018-02-01 | 2019-08-01 | JOBOB Investments, Inc. | Platform hoist with automatic emergency braking system |
| CN212149214U (en) * | 2020-06-04 | 2020-12-15 | 连云港锦缘石化设备制造有限公司 | Adjustable boarding ladder |
| CN113353194A (en) * | 2021-07-12 | 2021-09-07 | 湛江港石化码头有限责任公司 | Safety cable-releasing hook for preventing cable from releasing |
-
2021
- 2021-10-13 CN CN202111190560.4A patent/CN113815789A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130047909A1 (en) * | 2010-01-13 | 2013-02-28 | Peter A. Mueller | Light-weight platform having stairs |
| CN201592768U (en) * | 2010-01-20 | 2010-09-29 | 无锡沪联机械设备有限公司 | Safety device of boarding ladder elevator mechanism |
| CN201674194U (en) * | 2010-05-10 | 2010-12-15 | 青岛港（集团）有限公司 | Boarding ladder cable anti-groove jumping device |
| CN202765241U (en) * | 2012-07-17 | 2013-03-06 | 连云港振兴集团石化设备制造有限公司 | Falling prevention device for boarding ladder |
| CN205292986U (en) * | 2015-12-31 | 2016-06-08 | 连云港步升机械有限公司 | Step on ship's ladder safety couple |
| CN207875930U (en) * | 2017-07-11 | 2018-09-18 | 苏州瀚隆石化装备有限公司 | A kind of novel boarding ladder |
| US20190233266A1 (en) * | 2018-02-01 | 2019-08-01 | JOBOB Investments, Inc. | Platform hoist with automatic emergency braking system |
| CN212149214U (en) * | 2020-06-04 | 2020-12-15 | 连云港锦缘石化设备制造有限公司 | Adjustable boarding ladder |
| CN113353194A (en) * | 2021-07-12 | 2021-09-07 | 湛江港石化码头有限责任公司 | Safety cable-releasing hook for preventing cable from releasing |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20211221 |