CN106698143A - Safety tong linkage device - Google Patents
Safety tong linkage device Download PDFInfo
- Publication number
- CN106698143A CN106698143A CN201510778577.XA CN201510778577A CN106698143A CN 106698143 A CN106698143 A CN 106698143A CN 201510778577 A CN201510778577 A CN 201510778577A CN 106698143 A CN106698143 A CN 106698143A
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- CN
- China
- Prior art keywords
- linkage
- pulling
- arm
- safety
- safety tong
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- Maintenance And Inspection Apparatuses For Elevators (AREA)
Abstract
The invention provides a safety tong linkage device. The safety tong linkage device comprises lifting and pulling arms, linkage pulling arms, a linkage pulling rod and speed limiter pulling plates; the two ends of the linkage pulling rod are connected with the linkage pulling arms which are connected with the lifting and pulling arms through linkage shafts; the linkage pulling arm at one end is connected with the corresponding speed limiter pulling plate; two small pulling plates are further arranged at the tail end of each speed limiter pulling plate; the pulling rod is provided with two pulling rod supports; and the pulling rod supports are fixed to the outer wall of a lift car. Compared with the prior art, the safety tong linkage device has the remarkable beneficial effects that a new structure is adopted, the interval between a safety tong and a pulling strip is increased, and the safety tong and the pulling strip cannot interfere with each other; the length of the pulling rod can be accurately adjusted; and the lifting and pulling force of the linkage device is improved, it is guaranteed that the safety tong can generate a large enough braking force, and the safety of an elevator is improved.
Description
Technical field
The invention belongs to elevator manufacture field, more particularly to a kind of safety tongs linkage.
Background technology
Elevator safety clamp device is under the manipulation of limiter of speed, after the very serious failure such as hypervelocity, disconnected rope occurs in elevator, by the urgent stop of car and to be clamped in a kind of safety device on guide rail.Its safe operation to elevator provides effective protective effect, is typically installed on car frame or counterweight frame.With the proposition for writing the requirement of car up-running over-speed protection, present bidirectional safety tongs have wide use.Safety tongs device is made up of safety tongs operating mechanism and the part of safety block two.I.e. safety tongs mechanism action when, electrical apparatus mechanism is touched first makes elevator safety loop disconnect stop elevator, if brake cannot stop when safety tongs will further act, make elevator stopping on guide rail.
Current dynamic apparatus for lift can be divided into three kinds of wedge type, eccentric wheel-type and roller-type according to the difference of its braking member structure type.Wedge type safety tongs lifts wedge in braking by pull bar, and wedge produces frictional force, it is stuck on guide rail with guide rail.But existing linkage pull rod lifting power is small, when elevator is heavier, it may appear that lifting power is not enough so that safety tongs cannot produce enough brake force, have a strong impact on the security of elevator.
The content of the invention
Problem to be solved by this invention is to overcome the deficiencies in the prior art, there is provided a kind of big safety tongs linkage of lifting power.
The present invention solves its technical problem and takes following technical scheme to realize：
A kind of safety tongs linkage, including lifting arm, linkage torque arm, linkage pull rod, limiter of speed arm-tie, described linkage pull rod two ends are connected with linkage torque arm, linkage torque arm is connected by universal driving shaft with lifting arm, the linkage torque arm of one end is connected with limiter of speed arm-tie, and described limiter of speed arm-tie end is additionally provided with two small arm-ties；Described pull bar is provided with two pull bar supports, and described pull bar support is fixed on car outer wall.
The present invention has significant advantage and beneficial effect compared with prior art：New structure is employed, the spacing of safety tongs and tie rod is increased, both will not interfere；Pull bar length can be with accurate adjustment；It is lifting power to improve linkage, it is ensured that safety tongs can produce sufficiently large brake force, improve the security of elevator.
Brief description of the drawings
Fig. 1 is structural representation of the invention；
Fig. 2 is side view of the invention；
Wherein：1st, arm is lifted, 2, linkage torque arm, 3, linkage pull rod, 4, pull bar support, 5, spring, 6, adjusting nut, 7, limiter of speed arm-tie, 8, universal driving shaft, 9, long nut, 10, plain cushion, 11, arm-tie.
Specific embodiment
Below in conjunction with accompanying drawing and preferred embodiment, to specific embodiment, structure, feature and its effect for being provided according to the present invention, describe in detail as after.
As shown in Figure 1, 2：A kind of safety tongs linkage, including lifting arm, linkage torque arm, linkage pull rod, limiter of speed arm-tie, the described two ends of linkage pull rod 3 are connected with linkage torque arm 2, linkage torque arm 2 is connected by universal driving shaft 10 with lifting arm 1, the linkage torque arm of one end is connected with limiter of speed arm-tie 8, and described limiter of speed arm-tie end is additionally provided with two small arm-ties 14；Described pull bar is provided with two pull bar supports 4, and described pull bar support is fixed on car outer wall.
3 points described of linkage pull rod is two sections, and two sections of pull bars are connected by a long nut 12.
Described linkage pull rod 3 is provided with spring 5, is resetted for linkage pull rod, and spring is disposed therein between an adjusting nut 6 on a pull bar support and pull bar.
Operation principle of the present invention is：If car speeding as shown in Figure 2 is descending, limiter of speed drives lifting arm, lifting arm to drive limiter of speed arm-tie by universal driving shaft, linkage torque arm, linkage pull rod, press from both sides dead guide rail by governor rope, stops car.
One embodiment of the present of invention has been described in detail above, but the content is only presently preferred embodiments of the present invention, it is impossible to it is considered as limiting practical range of the invention.All impartial changes made according to the present patent application scope and improvement etc., all should still belong within patent covering scope of the invention.
Claims (3)
1. a kind of safety tongs linkage, it is characterised in that：Including lifting arm, linkage torque arm, linkage pull rod, limiter of speed arm-tie, described linkage pull rod two ends are connected with linkage torque arm, linkage torque arm is connected by universal driving shaft with lifting arm, and the linkage torque arm of one end is connected with limiter of speed arm-tie, and described limiter of speed arm-tie end is additionally provided with two small arm-ties；Described pull bar is provided with two pull bar supports, and described pull bar support is fixed on car outer wall.
2. a kind of safety tongs linkage according to claim 1, it is characterised in that：Described linkage pull rod is divided into two sections, and two sections of pull bars are connected by a long nut.
3. a kind of safety tongs linkage according to claim 1, it is characterised in that：Described linkage pull rod is provided with spring, and spring is disposed therein between an adjusting nut on a pull bar support and pull bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510778577.XA CN106698143A (en) | 2015-11-16 | 2015-11-16 | Safety tong linkage device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510778577.XA CN106698143A (en) | 2015-11-16 | 2015-11-16 | Safety tong linkage device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106698143A true CN106698143A (en) | 2017-05-24 |
Family
ID=58931337
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510778577.XA Withdrawn CN106698143A (en) | 2015-11-16 | 2015-11-16 | Safety tong linkage device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106698143A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107720478A (en) * | 2017-09-19 | 2018-02-23 | 西继迅达（许昌）电梯有限公司 | A kind of elevator emergency brake device |
| CN109678025A (en) * | 2018-11-22 | 2019-04-26 | 迈格钠磁动力股份有限公司 | A kind of anti-falling safe elevator device |
| CN112551302A (en) * | 2020-12-29 | 2021-03-26 | 日立电梯（中国）有限公司 | Elevator, speed limiting device mounting structure and lifting mechanism |
| CN112591573A (en) * | 2020-12-16 | 2021-04-02 | 上海三菱电梯有限公司 | Synchronous adjusting device and method for safety tongs |
-
2015
- 2015-11-16 CN CN201510778577.XA patent/CN106698143A/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107720478A (en) * | 2017-09-19 | 2018-02-23 | 西继迅达（许昌）电梯有限公司 | A kind of elevator emergency brake device |
| CN109678025A (en) * | 2018-11-22 | 2019-04-26 | 迈格钠磁动力股份有限公司 | A kind of anti-falling safe elevator device |
| CN112591573A (en) * | 2020-12-16 | 2021-04-02 | 上海三菱电梯有限公司 | Synchronous adjusting device and method for safety tongs |
| CN112551302A (en) * | 2020-12-29 | 2021-03-26 | 日立电梯（中国）有限公司 | Elevator, speed limiting device mounting structure and lifting mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20170524 |