CN202765241U - Falling prevention device for boarding ladder - Google Patents
Falling prevention device for boarding ladder Download PDFInfo
- Publication number
- CN202765241U CN202765241U CN 201220360817 CN201220360817U CN202765241U CN 202765241 U CN202765241 U CN 202765241U CN 201220360817 CN201220360817 CN 201220360817 CN 201220360817 U CN201220360817 U CN 201220360817U CN 202765241 U CN202765241 U CN 202765241U
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- China
- Prior art keywords
- pin
- safety
- compression spring
- reverse wheel
- spring device
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- Expired - Fee Related
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- Jib Cranes (AREA)
- Control And Safety Of Cranes (AREA)
- Ladders (AREA)
Abstract
The utility model discloses a falling prevention device for a boarding ladder, and belongs to the technical field of safety devices. The falling prevention device comprises traction steel wire ropes, a left hinge pin, a right hinge pin, rails and a lifting frame. The falling prevention device is characterized in that the lower portions of the traction ropes are connected with a lifting pulley group, the lifting pulley group comprises two groups of pulleys, the lower portion of the lifting pulley group is connected with the lifting frame through a movable groove and a movable pin shaft, the lower portion of the lifting frame is provide with a left safety pin and a right safety pin, the right side of the left safety pin is connected with the a left compression spring device through the left hinge pin, the right side of the left compression spring device is connected with a left reverse wheel, the upper portion of the left reverse wheel is connected with the movable pin shaft, the left side of the right safety pin is connected with a right compression spring device through the right hinge pin, the left side of the right compression spring device is connected with a right reverse wheel, the upper portion of the right reverse wheel is connected with the movable pin shaft, and the rails on two sides are provided with two rows of safety insertion holes. The falling prevention device is mainly used on boarding equipment on a dock.
Description
Technical field
The utility model belongs to technical field of safety devices, especially relates to a kind of falling proof device of boarding ladder.
Background technology
Along with the fast development of port construction, the tonnage of oil carrier is also in continuous growth, and boarding ladder equipment is more and more used on the harbour.Boarding ladder in use safety problem is also following.For boarding ladder in lifting process, in the situation of wire cable rupture, invented a kind of wire cable rupture that prevents, the safety device that lifting mechanism moment falls, nowadays social safety is first, has not had safety, and other all is frustrated, only guaranteed safety, all could health advance rapidly.Safety is the front topic of human survival and development.Everybody thirsts for safety, and everybody calls safety, and harmonious development more needs safety, society, and the height of safe attention degree, more than safety was talked about, it may be unprecedented that safety drops into big.Make every effort in management, safety and benefit, find new equilibrium point, drive enterprise's stable and rapid development with safety management.
The utility model content
For overcoming above-mentioned various technical matters, the utility model provides a kind of falling proof device of boarding ladder, and the technical scheme of employing is as follows:
A kind of falling proof device of boarding ladder, comprise haulage cable, left swivel pin, right swivel pin, track and crane, it is characterized in that, the hauling rope bottom connects the lifting pulley group, the lifting pulley group comprises two groups of movable pulleys, lifting pulley group bottom is connected with crane with mobile bearing pin by shifting chute, the bottom of crane is respectively equipped with left safety pin and right safety pin, left safety pin the right is connected with left compression spring device by left swivel pin, left compression spring device the right connects left reverse wheel and is connected, left reverse wheel top is connected with mobile bearing pin, the right safety pin left side is connected with right compression spring device by right swivel pin, the right compression spring device left side connects right reverse wheel and is connected, and right reverse wheel top is connected with mobile bearing pin, and the track on two limits is provided with the safe jack of two rows.
Preferably: crane is provided with bump rubber, and device is provided with bump rubber and can avoids metal bump to produce spark, guarantees to satisfy the requirement of explosion proof of oil dock.
Preferably: bump rubber is symmetrical two.
The utlity model has following advantage:
1, this device uses two groups of movable pulleys, has reduced the stressed of every steel rope, makes the equipment safety performance higher.
2, left and right sides fork has down card, can well block crane at the insertion safety vent.Make device more safe and reliable.
Description of drawings
Fig. 1 is the falling proof device constructional drawing of a kind of boarding ladder of the utility model.
Among the figure, 1 haulage cable, 2 lifting pulley groups, 3 cranes, 4 left safety pins, 5 left compression spring devices, 6 right safety pins, 7 right compression spring devices, 8 left swivel pins, 9 right swivel pins, 10 tracks, 11 safe jacks, 12 move bearing pin, 13 shifting chutes, 14 stretching steel ropes, 15 left reverse wheels, 16 right reverse wheels.
Constitution diagram when Fig. 2 is the falling proof device wire cable rupture of a kind of boarding ladder of the utility model.
Among the figure, 17 bump rubbers.
The specific embodiment
Steel rope 1 passes lifting pulley group 2 drive cranes 3 and moves up and down together.At this moment mobile bearing pin 12 is at the top of shifting chute 13, the stretching steel rope makes left compression spring device 5 and right compression spring device 7 be in compressive state by reverse wheel, make simultaneously left safety pin 4 and right safety pin 6 all be in the contraction off working state, guarantee that left safety pin 4 and right safety pin 6 do not interfere with track 10 in upgrading frame 3 lifting process, crane 3 is in track 10 interior normal work, during haulage cable 1 fracture, whole crane 3 will be in track 10 interior free falls, at this moment the mobile bearing pin on the lifting pulley group 2 has lost the pulling force that makes progress, will under the effect of left compression spring device 5 and right compression spring device 7, move downward, left safety pin 4 and right safety pin 6 are protruding as leading take left swivel pin 8 and right swivel pin 9 respectively under the effect of Compress Spring simultaneously, close to track 10, along with the whereabouts of crane can just in time be inserted in the safe jack 11 of left and right sides track 10, no longer fall thereby crane is stuck, guarantee the safety of equipment.
The above; it only is the specific embodiment of the present utility model; but protection domain of the present utility model is not limited to this; any those of ordinary skill in the art are in the disclosed technical scope of the utility model; the variation that can expect easily or replacement all should be encompassed within the protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain that claims were limited.
Claims (4)
1. the falling proof device of a boarding ladder, comprise haulage cable (1), left swivel pin (8), right swivel pin (9), track (10) and crane (3), it is characterized in that: hauling rope (1) bottom connects lifting pulley group (2), lifting pulley group (2) comprises two groups of movable pulleys, lifting pulley group (2) bottom is connected with crane (3) with mobile bearing pin (12) by shifting chute (13), the bottom of crane (3) is respectively equipped with left safety pin (4) and right safety pin (6), left safety pin (4) the right is connected with left compression spring device (5) by left swivel pin (8), left compression spring device (5) the right connects left reverse wheel (15) and is connected, left reverse wheel (15) top is connected with mobile bearing pin (12), right safety pin (6) left side is connected with right compression spring device (7) by right swivel pin (9), right compression spring device (7) left side connects right reverse wheel (16) and is connected, right reverse wheel (15) top is connected with mobile bearing pin (12), and the track on two limits (10) is provided with two row's safe jacks (11).
2. the falling proof device of a kind of boarding ladder according to claim 1, it is characterized in that: described crane (3) is provided with bump rubber (17).
3. the falling proof device of a kind of boarding ladder according to claim 2, it is characterized in that: described bump rubber (17) is symmetrical two.
4. the falling proof device of a kind of boarding ladder according to claim 1, it is characterized in that: left safety pin (4) and right safety pin (6) fork have down card.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220360817 CN202765241U (en) | 2012-07-17 | 2012-07-17 | Falling prevention device for boarding ladder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220360817 CN202765241U (en) | 2012-07-17 | 2012-07-17 | Falling prevention device for boarding ladder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202765241U true CN202765241U (en) | 2013-03-06 |
Family
ID=47771835
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220360817 Expired - Fee Related CN202765241U (en) | 2012-07-17 | 2012-07-17 | Falling prevention device for boarding ladder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202765241U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103523178A (en) * | 2013-10-28 | 2014-01-22 | 江苏熔盛重工有限公司 | Moving accommodation ladder security protection device |
| CN106006286A (en) * | 2016-07-30 | 2016-10-12 | 张玲玲 | Elevator with fall protection device |
| CN110145147A (en) * | 2019-04-30 | 2019-08-20 | 广州巧天科技有限公司 | A kind of parking systems and its working method |
| CN113815789A (en) * | 2021-10-13 | 2021-12-21 | 连云港步升机械有限公司 | Boarding ladder lifting anti-falling device and boarding ladder |
| CN118125258A (en) * | 2024-05-07 | 2024-06-04 | 河北景隆智能装备股份有限公司 | Vertical lifting device and anti-falling mechanism thereof |
-
2012
- 2012-07-17 CN CN 201220360817 patent/CN202765241U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103523178A (en) * | 2013-10-28 | 2014-01-22 | 江苏熔盛重工有限公司 | Moving accommodation ladder security protection device |
| CN103523178B (en) * | 2013-10-28 | 2015-12-02 | 江苏熔盛重工有限公司 | Ramp safety guard |
| CN106006286A (en) * | 2016-07-30 | 2016-10-12 | 张玲玲 | Elevator with fall protection device |
| CN110145147A (en) * | 2019-04-30 | 2019-08-20 | 广州巧天科技有限公司 | A kind of parking systems and its working method |
| CN113815789A (en) * | 2021-10-13 | 2021-12-21 | 连云港步升机械有限公司 | Boarding ladder lifting anti-falling device and boarding ladder |
| CN118125258A (en) * | 2024-05-07 | 2024-06-04 | 河北景隆智能装备股份有限公司 | Vertical lifting device and anti-falling mechanism thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130306 Termination date: 20150717 |
|
| EXPY | Termination of patent right or utility model |