CN205294538U - Safety tongs aggregate unit - Google Patents
Safety tongs aggregate unit Download PDFInfo
- Publication number
- CN205294538U CN205294538U CN201520907187.3U CN201520907187U CN205294538U CN 205294538 U CN205294538 U CN 205294538U CN 201520907187 U CN201520907187 U CN 201520907187U CN 205294538 U CN205294538 U CN 205294538U
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- CN
- China
- Prior art keywords
- linkage
- arm
- pull rod
- drag
- safety tongs
- Prior art date
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Abstract
The utility model provides a safety tongs aggregate unit, including carrying single arm -drag, linkage single arm -drag, linkage pull rod, overspeed governor arm -tie, the linkage pull rod both ends link to each other with the linkage single arm -drag, the linkage single arm -drag through the universal driving shaft with propose the single arm -drag and link to each other, the linkage single arm -drag of one end links to each other with the overspeed governor arm -tie, overspeed governor arm -tie end still be equipped with two little arm -ties, the pull rod on be equipped with two pull rod supports, the pull rod support fix on the car outer wall. Compared with the prior art, the utility model apparent advantage and beneficial effect have: having adopted new structure, having increased the interval of safety tongs and brace, both can not the mutual interference, pull rod length can accurately be adjusted, improved aggregate unit and carried the pulling force, guaranteed that the safety tongs can produce enough big brake force, the security that has improved the elevator.
Description
Technical field
This utility model belongs to elevator and manufactures field, 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 fault such as hypervelocity, disconnected rope occurs in elevator, by urgent for car stop and be clamped in a kind of safety device on guide rail. The safe operation of elevator is provided effective protective effect by it, is generally installed on car frame or counterweight frame. With the proposition that work car up-running over-speed protection requires, present bidirectional safety tongs has wide use. Safety tongs device is made up of safety tongs operating mechanism and safety block two part. Namely during safety tongs mechanism action, first touch electrical apparatus mechanism make elevator safety loop disconnect stop elevator, if brake cannot stop time safety tongs will action further, make elevator stopping on guide rail.
Current dynamic apparatus for lift can be divided into wedge type, eccentric wheel-type and roller-type three kinds according to the difference of its braking member version. Wedge type safety tongs, when braking, lifts wedge by pull bar, and wedge produces frictional force with guide rail, finally makes it be stuck on guide rail. But existing linkage pull rod lift power is little, when elevator is heavier, it may appear that lift power is not enough so that safety tongs cannot produce enough brake force, has had a strong impact on the safety of elevator.
Summary of the invention
To be solved in the utility model haveing a problem in that overcomes the deficiencies in the prior art, it is provided that the safety tongs linkage that a kind of power of lift is big.
This utility model solves it and technical problem is that and take techniques below scheme to realize:
A kind of safety tongs linkage, including lift 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 with lift arm by universal driving shaft, 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 little arm-ties; Described pull bar is provided with two pull bar supports, and described pull bar support is fixed on car outer wall.
This utility model compared with prior art has significant advantage and beneficial effect: have employed new structure, increases the spacing of safety tongs and tie rod, and both will not interfere; Pull bar length can accurately regulate; Improve linkage is lift power, it is ensured that safety tongs can produce sufficiently large brake force, improves the safety of elevator.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is side view of the present utility model;
Wherein: 1, lift arm, 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.
Detailed description of the invention
Below in conjunction with accompanying drawing and preferred embodiment, to the detailed description of the invention provided according to this utility model, structure, feature and effect thereof, describe in detail as after.
As shown in Figure 1, 2: a kind of safety tongs linkage, including lift arm, linkage torque arm, linkage pull rod, limiter of speed arm-tie, described linkage pull rod 3 two ends are connected with linkage torque arm 2, linkage torque arm 2 is connected with lift arm 1 by universal driving shaft 10, 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 little 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.
Described linkage pull rod 3 is divided into 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, resets for linkage pull rod, and spring is disposed therein between an adjusting nut 6 on a pull bar support and pull bar.
Utility model works principle is: if car speeding is descending as shown in Figure 2, and limiter of speed drives lift arm by governor rope, and lift arm drives limiter of speed arm-tie by universal driving shaft, linkage torque arm, linkage pull rod, presss from both sides dead guide rail, makes car stop.
Above an embodiment of the present utility model is described in detail, but described content has been only preferred embodiment of the present utility model, it is impossible to be considered for limiting practical range of the present utility model. All equalizations made according to this utility model application range change and improvement etc., all should still belong within patent covering scope of the present utility model.
Claims (3)
1. a safety tongs linkage, it is characterized in that: include lift 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 with lift arm by universal driving shaft, 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 little 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 |
|---|---|---|---|
| CN201520907187.3U CN205294538U (en) | 2015-11-16 | 2015-11-16 | Safety tongs aggregate unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520907187.3U CN205294538U (en) | 2015-11-16 | 2015-11-16 | Safety tongs aggregate unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205294538U true CN205294538U (en) | 2016-06-08 |
Family
ID=56463580
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520907187.3U Active CN205294538U (en) | 2015-11-16 | 2015-11-16 | Safety tongs aggregate unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205294538U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107207202A (en) * | 2015-01-29 | 2017-09-26 | 三菱电机株式会社 | Elevator, the lifting arm of elevator link the remodeling method of device and elevator |
| CN111278758A (en) * | 2017-11-16 | 2020-06-12 | 株式会社日立制作所 | Safety device and elevator with same |
-
2015
- 2015-11-16 CN CN201520907187.3U patent/CN205294538U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107207202A (en) * | 2015-01-29 | 2017-09-26 | 三菱电机株式会社 | Elevator, the lifting arm of elevator link the remodeling method of device and elevator |
| CN107207202B (en) * | 2015-01-29 | 2019-02-01 | 三菱电机株式会社 | Elevator, the lift lever connection device of elevator and the remodeling method of elevator |
| CN111278758A (en) * | 2017-11-16 | 2020-06-12 | 株式会社日立制作所 | Safety device and elevator with same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |