CN201808986U - Safety device for preventing building hoist from falling - Google Patents

Safety device for preventing building hoist from falling Download PDF

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Publication number
CN201808986U
CN201808986U CN2010205436635U CN201020543663U CN201808986U CN 201808986 U CN201808986 U CN 201808986U CN 2010205436635 U CN2010205436635 U CN 2010205436635U CN 201020543663 U CN201020543663 U CN 201020543663U CN 201808986 U CN201808986 U CN 201808986U
Authority
CN
China
Prior art keywords
safety
safety tongs
weight
speed limiter
cage
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
CN2010205436635U
Other languages
Chinese (zh)
Inventor
廖明华
徐东升
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.)
SICHUAN JIANYUAN ELEVATOR MANUFACTURING Co Ltd
Original Assignee
SICHUAN JIANYUAN ELEVATOR MANUFACTURING 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 SICHUAN JIANYUAN ELEVATOR MANUFACTURING Co Ltd filed Critical SICHUAN JIANYUAN ELEVATOR MANUFACTURING Co Ltd
Priority to CN2010205436635U priority Critical patent/CN201808986U/en
Application granted granted Critical
Publication of CN201808986U publication Critical patent/CN201808986U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses a safety device for preventing a building hoist from falling, comprising a speed limiter (1), a safety tong (2) and a safety tong triggering device, wherein the safety tong triggering device is formed by a heavy punch (3), a heavy punch tripping mechanism and a safety tong lifting rod (4); the speed limiter (1) is mounted at the top of a suspension cage, and a sheave arc of the speed limiter (1) is in friction contact with a lead rail. The safety tong is triggered by the speed limiter (1), and the speed limiter (1) is mounted at the top of the suspension cage and is in friction contact with the lead rail through the sheave arc of the speed limiter (1) to detect the running speed of the suspension cage. Because the speed limiter (1) is mounted at the top of the suspension cage, the fluttering of the steel cables does not cause danger. The safety device is mounted on a steel cable traction type building hoist, thereby saving energy and well solving the problems caused by dropping of the suspension cage at over speed and breaking off of the ropes.

Description

A kind of construction hoist falling-proof safety device
Technical field
The utility model relates to a kind of construction hoist falling-proof safety device, and it is applicable to the building hoist that the steel rope draw mode drives.
Background technology
Each cage of the dual-purpose building hoist of people's goods should be provided with and have anti-dropping safety device anti-fall, the speed limit dual-use function concurrently.During descending or suspension gear fracture, this device can and keep quiescence with the cage stop when cage hypervelocity.
The type of drive of building hoist has following two kinds of forms:
1) steel rope traction-type: this type of drive has adopted counter weight device owing in its drive system, thereby is a kind of good energy-saving type of drive.But the problem that the problem of falling of cage and cage hypervelocity glides when adopting this type of drive to solve wire cable rupture simultaneously.Trigger the safety tongs action if utilize hanging steel rope to rupture, then this scheme just can not solve the problem that the cage hypervelocity glides; If move and utilize velocity limiter detection cage running velocity and manoeuvring safety to clamp, then the wind of governor rope wafts and rocks and will bring dangerous risk to building hoist and can't overcome.
2) pinion and-rack: this type of drive preferably resolves the problem of falling of cage and the problem that the cage hypervelocity glides, but this kind mode is a kind of type of drive of highly energy-consuming.
Building hoist is the above-mentioned first kind of type of drive (steel rope traction-type) that adopts the earliest, but because it in use can't separate the problem of making a decision rope and hypervelocity simultaneously, thereby the drive pattern of the building hoist that finally faded out substantially and gradually being replaced by the pinion and-rack type of drive, but the drive pattern of pinion and-rack is a kind of relatively drive pattern of power consumption really.
The present invention is exactly in view of the situation and design-calculated that this kind anti-dropping safety device is applicable to that the building hoist of steel rope draw mode drives.
Summary of the invention
The purpose of this utility model is to provide a kind of anti-dropping safety device that is applicable to the building hoist that the steel rope draw mode drives, and this anti-dropping safety device can be eliminated the safety problem of falling and exceeding the speed limit and gliding and causing because of cage, energy savings again.
For achieving the above object, the solution that the utility model adopts is: this anti-dropping safety device comprises velocity limiter, safety tongs and safety tongs flip flop equipment, the safety tongs flip flop equipment is by weight, weight uncoupling rigging and safety tongs lifting rod constitute, described velocity limiter is installed in the cage top, its rope sheave circular arc contacts with rail friction, the weight uncoupling rigging comprises unhook plate and tripping-bar, the unhook plate is hinged on the column at cage top, be processed with the shrinkage pool that embeds for unhook plate upper end on it, the lower end of unhook plate is connected with weight, the triggering steel rope of drawing from velocity limiter is connected with the unhook plate, the safety tongs lifting rod is hinged on the cage top and is positioned under the weight, and safety tongs is connected with the safety tongs lifting rod.
Safety tongs of the present utility model is excited by velocity limiter, and velocity limiter is installed in the cage top and contacts the running velocity that detects cage by the governor sheave circular arc with the guide rail friction, because this velocity limiter is to be directly installed on the cage top, therefore steel rope wind wafts and can not cause risk, can detect the running velocity of cage simultaneously again immediately.
When the utility model reaches limit value when the cage running velocity, drive and trigger trip mechanism by velocity limiter and force weight to fall, the impulsive force when falling by weight excites the safety tongs lifting rod to rotate and produces the power of lifting and makes the safety tongs action.This device is installed on the steel rope traction-type construction lifting machine, both can solve power saving, preferably resolves the puzzlement that the cage hypervelocity glides and disconnected rope is brought again.
Description of drawings
Fig. 1 is the structural representation that is equipped with the cage of the utility model device.
Fig. 2 is that the K of velocity limiter part among Fig. 1 is to enlarged drawing.
Fig. 3 is the enlarged drawing at A place among Fig. 1.
Fig. 4 is the birds-eye view of safety tongs lifting rod part.
The specific embodiment
As Fig. 1, Fig. 2, Fig. 3, shown in Figure 4, the utility model comprises velocity limiter 1, safety tongs 2 and safety tongs flip flop equipment, velocity limiter 1 is installed in the cage top, its rope sheave circular arc contacts with rail friction, safety tongs 2 is touched by the safety tongs flip flop equipment, the safety tongs flip flop equipment is by weight 3, weight uncoupling rigging and safety tongs lifting rod 4 constitute, the weight uncoupling rigging comprises unhook plate 5 and tripping-bar 6, unhook plate 5 is hinged on the column at cage top, be processed with the shrinkage pool that embeds for tripping-bar 6 upper ends on it, the lower end of tripping-bar 6 is connected with weight 3, the triggering steel rope 7 of drawing from velocity limiter 1 is connected with unhook plate 5, safety tongs lifting rod 4 is " U " type, is hinged on the cage top and is positioned at weight 3 times, and safety tongs 2 is connected with safety tongs lifting rod 4.
The utility model is like this work: when velocity limiter 1 measures the cage running velocity when reaching limit value, velocity limiter triggers steel rope 7 actions, pulling unhook plate 5 breaks away from tripping-bar 6, the weight 3 that is connected tripping-bar 6 lower ends falls, knocking safety tongs lifting rod 4 makes safety tongs 2 actions, safety tongs 2 is held guide rail tightly, and cage is out of service.

Claims (1)

1. construction hoist falling-proof safety device, comprise velocity limiter (1), safety tongs (2) and safety tongs flip flop equipment, it is characterized in that: the safety tongs flip flop equipment is by weight (3), weight uncoupling rigging and safety tongs lifting rod (4) constitute, described velocity limiter (1) is installed in the cage top, its rope sheave circular arc contacts with rail friction, the weight uncoupling rigging comprises unhook plate (5) and tripping-bar (6), unhook plate (5) is hinged on the column at cage top, be processed with the shrinkage pool that embeds for tripping-bar (6) upper end on it, the lower end of tripping-bar (6) is connected with weight (3), the triggering steel rope (7) of drawing from velocity limiter (1) is connected with unhook plate (5), safety tongs lifting rod (4) is hinged on the cage top and is positioned under the weight (3), and safety tongs (2) is connected with safety tongs lifting rod (4).
CN2010205436635U 2010-09-27 2010-09-27 Safety device for preventing building hoist from falling Expired - Fee Related CN201808986U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010205436635U CN201808986U (en) 2010-09-27 2010-09-27 Safety device for preventing building hoist from falling

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010205436635U CN201808986U (en) 2010-09-27 2010-09-27 Safety device for preventing building hoist from falling

Publications (1)

Publication Number Publication Date
CN201808986U true CN201808986U (en) 2011-04-27

Family

ID=43891926

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2010205436635U Expired - Fee Related CN201808986U (en) 2010-09-27 2010-09-27 Safety device for preventing building hoist from falling

Country Status (1)

Country Link
CN (1) CN201808986U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102556799A (en) * 2011-12-23 2012-07-11 宁波申菱电梯配件有限公司 Device for preventing lift car of lift from accidentally moving
WO2020211666A1 (en) * 2019-04-15 2020-10-22 杭州沪宁电梯部件股份有限公司 Lifting-pulling apparatus having lifting-pulling force

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102556799A (en) * 2011-12-23 2012-07-11 宁波申菱电梯配件有限公司 Device for preventing lift car of lift from accidentally moving
CN102556799B (en) * 2011-12-23 2014-02-12 宁波申菱电梯配件有限公司 Device for preventing lift car of lift from accidentally moving
WO2020211666A1 (en) * 2019-04-15 2020-10-22 杭州沪宁电梯部件股份有限公司 Lifting-pulling apparatus having lifting-pulling force

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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: 20110427

Termination date: 20150927

EXPY Termination of patent right or utility model