CN201598112U - Friction locking mechanism - Google Patents
Friction locking mechanism Download PDFInfo
- Publication number
- CN201598112U CN201598112U CN2009202722971U CN200920272297U CN201598112U CN 201598112 U CN201598112 U CN 201598112U CN 2009202722971 U CN2009202722971 U CN 2009202722971U CN 200920272297 U CN200920272297 U CN 200920272297U CN 201598112 U CN201598112 U CN 201598112U
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- Prior art keywords
- friction locking
- friction
- pulley
- lifting
- spring
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- 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.)
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Abstract
The utility model relates to a friction locking mechanism, and belongs to a technical field of non-standard mechanical equipment. The friction locking mechanism comprises a rotary shaft and a friction locking wheel installed on the rotary shaft, wherein the friction locking wheel is an eccentric wheel mechanism; an arc surface of the friction locking wheel slightly abuts to a guide friction surface; the rear portion of the friction locking wheel is provided with a lifting draw hole and a spring hole; the lifting draw hole is connected with a lifting chain; and the spring hole is connected with a guide sliding seat through a spring. When the friction locking mechanism is used in braking process, braking is synchronous with accident fracture of lifting parts (such as the lifting chain), thereby being timely and effective, stable in performance, and convenient to use.
Description
Technical field:
The utility model relates to a kind of silent ratchet, belongs to technical field of non-standard mechanical equipment.
Background technology:
In the prior art, in the vertical direction lift system, lift system is met accident fall for preventing to promote part (as the promoting slide fastener) fracture that meets accident, usually adopt methods such as hydraulic pressure or electromagnetism to prevent accidental fall, its existence judges whether to meet accident and falls difficulty, prevents the accidental fall response lag, prevents the accidental fall weak effect, reliability is low, for the safe handling and the personal safety of equipment stays hidden danger.
Summary of the invention:
In order to solve the problems of the technologies described above, the utility model provides a kind of silent ratchet.
The technical scheme that its technical matters that solves the utility model adopts is: a kind of silent ratchet, its described silent ratchet is provided with rotating shaft, and be installed on friction lock bearing up pulley in the rotating shaft, described friction lock bearing up pulley is an eccentric mechanism, the arc surface of described friction lock bearing up pulley is little to be against on the guiding friction face, the afterbody of described friction lock bearing up pulley is provided with one and promotes a pulling eye and a spring eye, and described lifting pulling eye links to each other with the lifting slide fastener, and described spring eye is connected with the guiding slide by spring.
The utility model in braking procedure, braking with promote the unexpected fracture of part (as promoting slide fastener) carry out synchronously, timely and effective, stable performance, easy to use.
Description of drawings:
The utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the structural representation of friction lock bearing up pulley.
Among the figure: 1, extension spring; 2, rotating shaft; 3, friction lock bearing up pulley; 4, guiding friction face; 5, promote slide fastener; 6, promote pulling eye; 7, spring eye; 8, guiding slide.
The specific embodiment:
A kind of silent ratchet as shown in Figure 1, it is provided with rotating shaft 2, and be installed on friction lock bearing up pulley 3 in the rotating shaft 2, described friction lock bearing up pulley 3 is an eccentric mechanism, the arc surface of described friction lock bearing up pulley 3 is little to be against on the guiding friction face 4, it forms certain clearance between the two, general about 3 millimeters, again in conjunction with Fig. 2, the afterbody of described friction lock bearing up pulley 3 is provided with one and promotes a pulling eye 6 and a spring eye 7, described lifting pulling eye 6 links to each other with lifting slide fastener 5, and described spring eye 7 is connected with guiding slide 8 by spring 1.When promoting slide fastener 5 generation fractures, friction lock bearing up pulley 3 under extension spring 1 pulling to the certain angle of counter-rotation, and produce friction between the guiding friction face 4, and under the effect of friction force, friction lock bearing up pulley 3 is to the reversing sense motion of gravity. because friction lock bearing up pulley 3 is designed to eccentric structure when designing, can make it press tighter and tighter, thus locking.
It below only is preferred embodiment of the present utility model, be not that the utility model is done any pro forma restriction, every foundation technical spirit of the present utility model all still belongs in the scope of technical solutions of the utility model any simple modification, equivalent variations and modification that above embodiment did.
Claims (1)
1. silent ratchet, it is characterized in that: described silent ratchet is provided with rotating shaft (2), and be installed on friction lock bearing up pulley (3) in the rotating shaft (2), described friction lock bearing up pulley (3) is an eccentric mechanism, the arc surface of described friction lock bearing up pulley (3) is little to be against on the guiding friction face (4), the afterbody of described friction lock bearing up pulley (3) is provided with one and promotes a pulling eye (6) and a spring eye (7), described lifting pulling eye (6) links to each other with lifting slide fastener (5), and described spring eye (7) is connected with guiding slide (8) by spring (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202722971U CN201598112U (en) | 2009-12-08 | 2009-12-08 | Friction locking mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202722971U CN201598112U (en) | 2009-12-08 | 2009-12-08 | Friction locking mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201598112U true CN201598112U (en) | 2010-10-06 |
Family
ID=42809163
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202722971U Expired - Fee Related CN201598112U (en) | 2009-12-08 | 2009-12-08 | Friction locking mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201598112U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104555793A (en) * | 2013-02-02 | 2015-04-29 | 江苏武东机械有限公司 | Self-locking disc brake |
-
2009
- 2009-12-08 CN CN2009202722971U patent/CN201598112U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104555793A (en) * | 2013-02-02 | 2015-04-29 | 江苏武东机械有限公司 | Self-locking disc brake |
| CN104555793B (en) * | 2013-02-02 | 2017-01-25 | 江苏武东机械有限公司 | Self-locking disc brake |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Suzhou Jiufang Welding Cutting Technology Co., Ltd. Assignor: Suzhou Weida Welding & Cutting Technology Co., Ltd. Contract record no.: 2011320010091 Denomination of utility model: Friction locking mechanism Granted publication date: 20101006 License type: Exclusive License Record date: 20110712 |
|
| ASS | Succession or assignment of patent right |
Owner name: SUZHOU JIUFANG WELDING + CUTTING TECHNOLOGY CO., L Free format text: FORMER OWNER: SUZHOU WEIDA WELDING + CUTTING TECHNOLOGY CO., LTD. Effective date: 20110817 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20110817 Address after: 215122, Suzhou, Tong Town, only 83 new road Patentee after: Suzhou Jiufang Welding Cutting Technology Co., Ltd. Address before: 215122, Suzhou Industrial Park, Jiangsu City, Suzhou Province Town Road Industrial Zone, A1-3-4 Patentee before: Suzhou Weida Welding & Cutting Technology Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101006 Termination date: 20141208 |
|
| EXPY | Termination of patent right or utility model |