CN202729512U - Large-tonnage progressive elevator safety tongs - Google Patents
Large-tonnage progressive elevator safety tongs Download PDFInfo
- Publication number
- CN202729512U CN202729512U CN 201220434714 CN201220434714U CN202729512U CN 202729512 U CN202729512 U CN 202729512U CN 201220434714 CN201220434714 CN 201220434714 CN 201220434714 U CN201220434714 U CN 201220434714U CN 202729512 U CN202729512 U CN 202729512U
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- elevator
- tonnage
- elevator safety
- tongs
- roller
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Abstract
The utility model discloses a pair of large-tonnage progressive elevator safety tongs, relates to the field of elevator manufacturing and specifically relates to the technical field of elevator safety devices. The large-tonnage progressive elevator safety tongs comprise a frame, a tongs body, a pin which is fixed on the frame, a brake arm, an adjustment rod and a spring, wherein a roller component is arranged on the tongs body; the roller component comprises a roller guide, a groove on the roller guide and a built-in ball; a wedge-shaped brake block is clamped in the groove of the roller component; and the roller component is splayed. According to the elevator safety tongs, the friction force is increased gradually during the brake, then the impact forces instantaneously applied on the guiderail, the steel wire rope, the car and the like are small and the elevator car is decelerated stably, so that the safety and the comfortable sensation are good.
Description
Technical field
The utility model relates to elevator and makes the field, is specifically related to a kind of elevator car safety technical field.
Background technology
Safety tongs is a kind of machine security parts that make car or counterweight stop motion, when elevator accident occurs and during overspeed, velocity limiter triggers the safety tongs action.
The radical function of the full pincers of elevator has: the one, when hypervelocity or disconnected rope occur in elevator, when car speeding slides, safety tongs can in setting time with the car stop on fluctuating orbit, the 2nd, when elevator device quality (deadweight+load-carrying) is larger, its stop must be gradual, in order to avoid at anxious stopping time deceleration/decel greater than 1g, passenger and equipment are come to harm.Therefore safety tongs provides the safety guard-safeguard effect to the operation of elevator.
The instantaneous formula secured fashion of the at present general employing of elevator safety gear, when elevator breaks down, safety tongs moment locking steel wire rope, especially to the large-tonnage elevator, the power of throwing of rubbing that moment produces is very large, the moments such as guide rail, steel rope, car are subject to impulsive force and fragile, and deceleration of elevator is not steady simultaneously, and safety, comfort are poor.
The safety tongs that mostly is greatly little tonnage that uses at present never can seriously restrict China's large-tonnage for selecting above elevator safety gear parts more than 10 tons, the particularly elevator of 10-25 ton development.
Summary of the invention
The purpose of this utility model is to overcome the shortcoming that prior art exists, provide a kind of large-tonnage gradual elevator safety gear, this elevator safety gear rubs gradually wiping power by increasing when having braking, it is little to make the moments such as guide rail, steel rope, car be subject to impulsive force, lift car slows down steadily, and safety, comfort are good.
For realizing above-mentioned technical purpose, the technical solution of the utility model: the gradual elevator safety gear of a kind of large-tonnage, comprise framework, caliper, be fixed on pin, brake control lever, adjust bar, spring on the described framework, on the described caliper roller assembly is arranged, described roller assembly comprises groove on roller guide, the roller guide, is built-in with ball, the wedge shape brake shoe is connected in the groove of roller assembly, and described roller assembly is splayed configuration.
In order to increase the friction drag with the guide rail of elevator, the surface of wedge shape brake shoe is equipped with sags and crests.
Beneficial effect: the gradual elevator safety gear of the utility model, used dexterously the lever arm of force principle, voussoir is moved lock along surface rail firmly cause the horizontal component of force that produces, pass to spring by arm lever, make the rigidity Design of spring reduce 5 times, reach the purpose of progressive stop, adopt simple structure, and reach the safe stop effect that meets national standard.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the upward view of Fig. 1.
The specific embodiment
As shown in Figure 1, 2, the utility model comprises framework 1, caliper 2, is fixed on pin 8, brake control lever 7, adjust bar 6, spring 5 on the framework 1, roller assembly 3 is arranged on the caliper 2, roller assembly 3 comprises groove 32 on roller guide 31, the roller guide, is built-in with ball 33, wedge shape brake shoe 4 is connected in roller assembly 3 grooves 32, roller assembly 3 is splayed configuration, and in order to increase the friction drag with the guide rail of elevator, the surface of wedge shape brake shoe is equipped with concavo-convex 41 points.
Working process of the present utility model: when the lift car hypervelocity slides downwards, send machinery by speed monitoring mechanism to safety tongs and carry out instruction, elevator safety gear glides with elevator cage, wedge shape brake shoe 4 is to top offset, with the horizontal component of force on the generation directions X and the component straight up of vertical Y direction, can make caliper 2 produce displacement along directions X take horizontal direction as main component, and act on the spring 5 by brake control lever 7, make spring 5 compressions, when the elastic force of spring 5 also with increasing, and come equilibrium level component through the lever principle of the arm of force conversely, hold cage guide tightly, the most at last the car stop.Make the safety tongs gripping power consistent by regulating adjust bar 6.
Claims (2)
1. gradual elevator safety gear of large-tonnage, it is characterized in that: comprise framework, caliper, be fixed on pin, brake control lever, adjust bar, spring on the described framework, on the described caliper roller assembly is arranged, described roller assembly comprises groove on roller guide, the roller guide, is built-in with ball, the wedge shape brake shoe is connected in the groove of roller assembly, and described roller assembly is splayed configuration.
2. the gradual elevator safety gear of large-tonnage according to claim 1, it is characterized in that: the surface of described wedge shape brake shoe is equipped with sags and crests.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220434714 CN202729512U (en) | 2012-08-30 | 2012-08-30 | Large-tonnage progressive elevator safety tongs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220434714 CN202729512U (en) | 2012-08-30 | 2012-08-30 | Large-tonnage progressive elevator safety tongs |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202729512U true CN202729512U (en) | 2013-02-13 |
Family
ID=47655234
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220434714 Expired - Fee Related CN202729512U (en) | 2012-08-30 | 2012-08-30 | Large-tonnage progressive elevator safety tongs |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202729512U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103863916A (en) * | 2012-12-17 | 2014-06-18 | 株式会社日立制作所 | Emergency braking device of elevator |
| CN104229589A (en) * | 2014-08-28 | 2014-12-24 | 南通爱利特机电制造有限公司 | High-safety progressive elevator safety gear |
| CN105905743A (en) * | 2016-06-30 | 2016-08-31 | 爱默生电梯有限公司 | Instantaneous safety gear for elevator |
| CN109132776A (en) * | 2018-11-12 | 2019-01-04 | 江苏伯爵电梯股份有限公司 | It is a kind of low cost have computer room cargo lift |
| CN109911738A (en) * | 2019-04-03 | 2019-06-21 | 宁波奥德普电梯部件有限公司 | A kind of large-tonnage instantaneous safety |
| CN111977487A (en) * | 2020-07-16 | 2020-11-24 | 白东轩 | Bidirectional progressive braking safety tongs |
-
2012
- 2012-08-30 CN CN 201220434714 patent/CN202729512U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103863916A (en) * | 2012-12-17 | 2014-06-18 | 株式会社日立制作所 | Emergency braking device of elevator |
| CN104229589A (en) * | 2014-08-28 | 2014-12-24 | 南通爱利特机电制造有限公司 | High-safety progressive elevator safety gear |
| CN105905743A (en) * | 2016-06-30 | 2016-08-31 | 爱默生电梯有限公司 | Instantaneous safety gear for elevator |
| CN109132776A (en) * | 2018-11-12 | 2019-01-04 | 江苏伯爵电梯股份有限公司 | It is a kind of low cost have computer room cargo lift |
| CN109911738A (en) * | 2019-04-03 | 2019-06-21 | 宁波奥德普电梯部件有限公司 | A kind of large-tonnage instantaneous safety |
| CN109911738B (en) * | 2019-04-03 | 2024-05-10 | 宁波奥德普电梯部件有限公司 | Large tonnage instantaneous safety tongs |
| CN111977487A (en) * | 2020-07-16 | 2020-11-24 | 白东轩 | Bidirectional progressive braking safety tongs |
| CN111977487B (en) * | 2020-07-16 | 2021-11-30 | 苏州东方富力电梯部件有限公司 | Bidirectional progressive braking safety tongs |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130213 Termination date: 20170830 |