CN202768737U - Telescopic chain - Google Patents
Telescopic chain Download PDFInfo
- Publication number
- CN202768737U CN202768737U CN 201220475315 CN201220475315U CN202768737U CN 202768737 U CN202768737 U CN 202768737U CN 201220475315 CN201220475315 CN 201220475315 CN 201220475315 U CN201220475315 U CN 201220475315U CN 202768737 U CN202768737 U CN 202768737U
- Authority
- CN
- China
- Prior art keywords
- chain
- rings
- telescopic
- telescopic shaft
- chain rings
- 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
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- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
Abstract
A telescopic chain comprises a plurality of chain rings which are mutually connected in series, and is characterized in that telescopic structures are arranged between at least two adjacent chain rings of the plurality of chain rings. Each telescopic structure comprises circular rings which penetrate through end faces of the chain rings and are respectively arranged on one side in which two adjacent chain rings are opposite. Two ends of a telescopic shaft are respectively inserted into two chain rings through the circular rings of the chain rings. A spring is sleeved on two inserted sections of the telescopic shaft. One end of the spring is limited through a baffle arranged on one end portion of the telescopic shaft, and the other end of the spring butts against the circular rings. By means of the telescopic structures between the chain rings, the telescopic chain achieves length adjustment of the chain.
Description
Technical field
The utility model relates to the high-altitude safe protection work, particularly telescopic chain.
Background technique
General said chain interlocks for ring and ring, and joint is interactive with joint.The chain effect is larger than rope institute strength.
Its length of all chains is constant up to now, but requires chain as a kind of safety protection in some specific environment, when environment forces this facility extensibility is arranged, and conventional chain inextensibility is difficult to reach function of safety protection.
For example, aisle, crane end carriage place is narrow, and on one side without railing, why the highly dangerous place does not set up defences is protected facility to the pedestrian by this place, in fact just impassable as loading onto the railing aisle, can not find Perfected process, so do not establish railing.In the time will passing through end carriage, need be very on tenterhooks, just there is safety problem in this.
As doing railing with general chain, the aisle is narrower; Making more not all rightly of other materials, is exactly this cause so end carriage aisle place does not establish railing, also has a key factor, and dolly is transported to the end carriage place and makes easily of other materials and break.
Summary of the invention
The purpose of this utility model is to design a kind of telescopic chain, by the adjustable structure between chain ring and the chain ring, realizes that chain length is adjustable.
For achieving the above object, the technical solution of the utility model is:
Telescopic chain, the some chain rings that comprise mutual series connection, it is characterized in that, establish adjustable structure between at least two adjacent chain rings in described some chain rings, this adjustable structure comprises, a relative side of two adjacent chain rings is established respectively the annulus of a perforation chain ring end face, insert in these two chain rings by the annulus of two chain rings respectively at one telescopic shaft two ends, a sheathed spring on two inserting paragraphs of telescopic shaft, spring one end is by the baffle limiting of being located at the telescopic shaft end, and the spring the other end is against annulus.
Further, the baffle plate of described telescopic shaft end for can move axially along telescopic shaft, adjustable structure
The utility model forms the complete stretching chain of a cover in conjunction with other chain rings, and its active ring combines with stretching chain, is generally slip joint one joint according to actual use and puts active ring one joint, and assembling does not lose the chain function like this.As the flexible slip joints of installing of long distance will be arranged more, every joint scalable 50～100mm scope of stretching.
The utility model has the advantage of:
The utility model chain realizes that by the adjustable structure between chain ring and the chain ring chain length is adjustable.
Description of drawings
Fig. 1 is the utility model embodiment's structural representation.
Embodiment
Referring to Fig. 1, telescopic chain of the present utility model, the some chain rings that comprise mutual series connection, wherein, at least two adjacent chain rings 1 in described some chain rings, establish adjustable structure 3 between 2, this adjustable structure 3 comprises, two adjacent chain rings 1, a relative side of 2 is established respectively the annulus 4 of a perforation chain ring end face, 4 ', the annulus 4 of two chain rings is passed through respectively at one telescopic shaft, 5 two ends, 4 ' inserts this two chain rings 1, in 2, a sheathed spring 6 on two inserting paragraphs of telescopic shaft 5, spring 6 one ends are by the baffle plate 7 of being located at telescopic shaft 5 ends, 7 ' is spacing, and spring 6 the other ends are against annulus 4,4 '.
Further, the baffle plate 7 of described telescopic shaft 5 ends, 7 ' for can move axially along telescopic shaft 5, adjustable structure.
The utility model uses at the crane end carriage position.The crane end carriage place only has in the aisle 400 millimeters distances, the inadaptable assembling of other railings, and stretching chain reaches technical requirements fully.
The railing that will stretch during assembling is fixing greater than 100 millimeters of width of walkways, increase for the space, aisle, convenient easily current, chain will be tightened, and works as handrail because chain can stretch, spring diameter is slightly thick, can bear 50kg external force and namely reach purpose of design, two on chain is fixed on the height into 1.5m, when human body is current, the one, eliminate psychological obstacle, the 2nd, increased the insurance factor.
When dolly leaves to the end carriage place, chain is elongated under external force, and dolly leaves chain and returns to normal again, and the dress stretching chain has been stopped potential safety hazard technically at dolly end carriage place, successfully solve a technical difficult problem, be particularly suitable for being applied in crane end carriage as safety installations.
Claims (2)
1. telescopic chain, the some chain rings that comprise mutual series connection, it is characterized in that, establish adjustable structure between at least two adjacent chain rings in described some chain rings, this adjustable structure comprises, a relative side of two adjacent chain rings is established respectively the annulus of a perforation chain ring end face, insert in these two chain rings by the annulus of two chain rings respectively at one telescopic shaft two ends, a sheathed spring on two inserting paragraphs of telescopic shaft, spring one end is by the baffle limiting of being located at the telescopic shaft end, and the spring the other end is against annulus.
2. telescopic chain as claimed in claim 1 is characterized in that, the baffle plate of described telescopic shaft end for can move axially along telescopic shaft, adjustable structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220475315 CN202768737U (en) | 2012-09-17 | 2012-09-17 | Telescopic chain |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220475315 CN202768737U (en) | 2012-09-17 | 2012-09-17 | Telescopic chain |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202768737U true CN202768737U (en) | 2013-03-06 |
Family
ID=47775313
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220475315 Expired - Fee Related CN202768737U (en) | 2012-09-17 | 2012-09-17 | Telescopic chain |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202768737U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103708174A (en) * | 2013-11-30 | 2014-04-09 | 南通剑桥输送设备有限公司 | Retractable plate-chain conveyor track |
| CN112324861A (en) * | 2020-10-30 | 2021-02-05 | 王平 | Variable-pitch large-load chain |
-
2012
- 2012-09-17 CN CN 201220475315 patent/CN202768737U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103708174A (en) * | 2013-11-30 | 2014-04-09 | 南通剑桥输送设备有限公司 | Retractable plate-chain conveyor track |
| CN112324861A (en) * | 2020-10-30 | 2021-02-05 | 王平 | Variable-pitch large-load chain |
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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 |
Granted publication date: 20130306 Termination date: 20150917 |
|
| EXPY | Termination of patent right or utility model |