CN202765241U - Falling prevention device for boarding ladder - Google Patents

Falling prevention device for boarding ladder Download PDF

Info

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
Authority
CN
China
Prior art keywords
pin
safety
compression spring
reverse wheel
spring device
Prior art date
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.)
Expired - Fee Related
Application number
CN 201220360817
Other languages
Chinese (zh)
Inventor
谌继刚
魏洁
李祥宾
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LIANYUNGANG ZHENXING (GROUP) PETROCHEICAL EQUIPMENT MANUFACTURE CO Ltd
Original Assignee
LIANYUNGANG ZHENXING (GROUP) PETROCHEICAL EQUIPMENT MANUFACTURE CO Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by LIANYUNGANG ZHENXING (GROUP) PETROCHEICAL EQUIPMENT MANUFACTURE CO Ltd filed Critical LIANYUNGANG ZHENXING (GROUP) PETROCHEICAL EQUIPMENT MANUFACTURE CO Ltd
Priority to CN 201220360817 priority Critical patent/CN202765241U/en
Application granted granted Critical
Publication of CN202765241U publication Critical patent/CN202765241U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Landscapes

  • 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

A kind of falling proof device of boarding ladder
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.
CN 201220360817 2012-07-17 2012-07-17 Falling prevention device for boarding ladder Expired - Fee Related CN202765241U (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (6)

* Cited by examiner, † Cited by third party
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

Similar Documents

Publication Publication Date Title
CN202765241U (en) Falling prevention device for boarding ladder
CN205397768U (en) Elevator tenesmus buffer
CN203959574U (en) A kind of fall protection equipment of elevator
CN202766050U (en) Pulley for elevator dragger
CN204281061U (en) A kind of can the combined sling of automatic releasing hook
CN202272602U (en) Layout structure of machine-room-less elevator
CN102774730A (en) Pulley wheel for elevator tractor
CN102849572A (en) Oil lubrication device for tractor of elevator
CN202729537U (en) Underlying indirect-drive elevator
CN202345487U (en) Vehicle-mounted vertical lifting tail plate
CN202414934U (en) Telescopic sliding chute toe guard
CN201793300U (en) Elevator
CN102502402A (en) Dynamic windproof energy-consumption buffer braking device and method for rail-mounted crane
CN204416834U (en) A kind of building hoist protection mechanism
CN202296661U (en) Tensioning anti-pumping device for speed limiter of high-speed lift
CN207005642U (en) A kind of monorail crane jack device
CN202864624U (en) Electric basket
CN201882820U (en) Automatic jacking device for buffer rod of variable-amplitude auxiliary arm of wheel crane
CN205675936U (en) A kind of elevator safety gear
CN205472515U (en) Platform is gone up and down to overhaul in on -vehicle removal
CN202953446U (en) Bucket chain stopper of bucket type lifter
CN204173844U (en) Auto hoist pulley assembly
CN202449708U (en) Vehicle stopping fence of main lifting system of mine
CN201674194U (en) Boarding ladder cable anti-groove jumping device
CN202788733U (en) Draw plate type pneumatic hole closing device

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