CN201246441Y - Traction overload protection device - Google Patents
Traction overload protection device Download PDFInfo
- Publication number
- CN201246441Y CN201246441Y CNU2008201330174U CN200820133017U CN201246441Y CN 201246441 Y CN201246441 Y CN 201246441Y CN U2008201330174 U CNU2008201330174 U CN U2008201330174U CN 200820133017 U CN200820133017 U CN 200820133017U CN 201246441 Y CN201246441 Y CN 201246441Y
- Authority
- CN
- China
- Prior art keywords
- nut
- safety pin
- traction
- overload protection
- connecting sleeve
- 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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Abstract
The utility model relates to a traction overload protection device, and when an object needs to be drawn to a designated site by a rigging, the drawn object is often damaged or safety accidents are caused due to the traction force which is larger than the maximum load of the drawn object. The traction overload protection device comprises a connecting sleeve, a nut and a safety pin, wherein one end of the connecting sleeve is provided with an ear-ring, the other end of the connecting ring is equipped with an inner hole with threads, one end of the nut is sealed and the other end is provided with an insert hole, the outer circle of the nut is provided with threads, the nut and the connecting sleeve are connected through the threads of the inner hole, the safety pin is a pin shaft with a slim middle and larger ends, the diameter of the middle portion of the safety pin is calculated according to the ultimate tensile strength of the material of the safety pin and the sustainable maximum load of the drawn object, and two ends of the safety pin are respectively inserted into two nut insert holes, thereby connecting together two connecting sleeves connected with the nuts. The utility model has the advantages of simple structure, reliable performance and easy renewal.
Description
Technical field
The utility model relates to a kind of traction overload protection arrangement.
Background technique
When object need utilize rigging to be drawn to the appointed place, usually can cause the damage that is pulled thing or cause other security incident because tractive force has surpassed the maximum bearing load that is pulled thing.Make in the traction object process and can not be damaged, security incident does not take place, need the traction overload protection arrangement.The utility model provides the traction overload protection arrangement.
The model utility content
In order to guarantee that being pulled thing does not damage or cause potential safety hazard because of excessive generation of traction strength; so on drawing, need to install additional the protective gear of traction overload with rigging; it is a kind of simple in structure that the utility model provides, reliable performance, the traction overload protection arrangement that is easy to change.
The technological scheme that realizes above-mentioned purpose is: the traction overload protection arrangement; comprise that an end has the connecting sleeve of earrings; the connecting sleeve the other end is provided with screwed endoporus; the one end closure the other end of nut is provided with embedded hole; the cylindrical of nut is threaded; nut is connected by inner hole thread with connecting sleeve; safety pin is middle thin; the bearing pin that two ends are thick; the diameter of the intermediate portion of safety pin according to the ultimate tensile strength of its material be pulled the maximum load that thing can bear and calculate; the two ends of safety pin embed respectively in two nut embedded holes, and two connecting sleeves that are connected with nut are coupled together.
During use; the traction overload protection arrangement is connected with the traction rigging by the earrings at two ends; when the traction object; if pulling force will reach when being pulled the maximum load that object can bear; the thinner part in safety pin middle part in the traction overload protection arrangement will be broken earlier, is pulled the purpose that thing is not damaged thereby play protection.
The utlity model has following beneficial effect:
1, simple in structure, the utility model only is to have used safety pin and corresponding connecting arrangement just to have reached protection and be pulled the purpose that thing is not damaged.
2, reliable performance, since in the middle of the safety pin diameter of thinner bearing pin be according to the ultimate tensile strength of its material be pulled the maximum load that thing can bear and calculate, its ultimate tensile strength is less than being pulled the maximum load that thing can bear, when being pulled thing and will reaching the maximum load that can bear, safety pin is at first broken, thereby has improved the Security that is pulled thing.
3, be easy to change, compare with the similar products of shearing disrumpent feelings principle manufacturing with other, safety pin is easy to change more, saves time.
Description of drawings
Fig. 1 is the structural representation of the utility model traction overload protection arrangement
Fig. 2 is the side-looking structural representation of Fig. 1
Fig. 3 is the structure for amplifying schematic representation of nut
1-connecting sleeve, 2-nut, 3-safety pin, 4-earrings
Embodiment
Fig. 1-3 has shown a kind of embodiment of the present utility model.
The traction overload protection arrangement; comprise that an end has the connecting sleeve 1 of earrings 4; connecting sleeve 1 the other end is provided with screwed endoporus; the one end closure the other end of nut 2 is provided with embedded hole; the cylindrical of nut 2 is threaded; nut 2 and connecting sleeve 1 are connected by inner hole thread; safety pin 3 is middle thin; the bearing pin that two ends are thick; the diameter of the intermediate portion of safety pin 3 according to the ultimate tensile strength of its material be pulled the maximum load that thing can bear and calculate; the two ends of safety pin 3 embed respectively in two nut 2 embedded holes, and two connecting sleeves 1 that are connected with nut 2 are coupled together.
During use; the traction overload protection arrangement is connected with the traction rigging by the earrings 4 at two ends; when the traction object; if pulling force will reach when being pulled the maximum load that object can bear; the thinner part in safety pin 3 middle parts in the traction overload protection arrangement will be broken earlier, is pulled the purpose that thing is not damaged thereby play protection.
Claims (1)
1; the traction overload protection arrangement; it is characterized by and comprise that an end has the connecting sleeve of earrings; the connecting sleeve the other end is provided with screwed endoporus; the one end closure the other end of nut is provided with embedded hole; the cylindrical of nut is threaded; nut is connected by inner hole thread with connecting sleeve; safety pin is middle thin; the bearing pin that two ends are thick; the diameter of the intermediate portion of safety pin according to the ultimate tensile strength of its material be pulled the maximum load that thing can bear and calculate; the two ends of safety pin embed respectively in two nut embedded holes, and two connecting sleeves that are connected with nut are coupled together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201330174U CN201246441Y (en) | 2008-07-29 | 2008-07-29 | Traction overload protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201330174U CN201246441Y (en) | 2008-07-29 | 2008-07-29 | Traction overload protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201246441Y true CN201246441Y (en) | 2009-05-27 |
Family
ID=40730263
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201330174U Expired - Fee Related CN201246441Y (en) | 2008-07-29 | 2008-07-29 | Traction overload protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201246441Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102343918A (en) * | 2011-07-12 | 2012-02-08 | 青岛四方车辆研究所有限公司 | Inner breaking type buffer device for rail vehicle |
| CN102853032A (en) * | 2012-03-29 | 2013-01-02 | 中航光电科技股份有限公司 | Pull-out accessory and electric connector using same |
| CN108517956A (en) * | 2018-05-09 | 2018-09-11 | 苏州科技大学 | A kind of rope brace-frame structure and preparation method thereof with fuse |
| CN110454490A (en) * | 2019-08-17 | 2019-11-15 | 郭献进 | A kind of traction middle part controllable type attachment device |
| CN113576117A (en) * | 2021-08-26 | 2021-11-02 | 巨力索具股份有限公司 | Connecting ring with overload warning and protecting functions |
-
2008
- 2008-07-29 CN CNU2008201330174U patent/CN201246441Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102343918A (en) * | 2011-07-12 | 2012-02-08 | 青岛四方车辆研究所有限公司 | Inner breaking type buffer device for rail vehicle |
| CN102343918B (en) * | 2011-07-12 | 2016-08-17 | 中车青岛四方车辆研究所有限公司 | Interior breaking type buffer device for rail vehicle |
| CN102853032A (en) * | 2012-03-29 | 2013-01-02 | 中航光电科技股份有限公司 | Pull-out accessory and electric connector using same |
| CN102853032B (en) * | 2012-03-29 | 2015-03-11 | 中航光电科技股份有限公司 | Pull-out accessory and electric connector using same |
| CN108517956A (en) * | 2018-05-09 | 2018-09-11 | 苏州科技大学 | A kind of rope brace-frame structure and preparation method thereof with fuse |
| CN110454490A (en) * | 2019-08-17 | 2019-11-15 | 郭献进 | A kind of traction middle part controllable type attachment device |
| CN110454490B (en) * | 2019-08-17 | 2021-07-16 | 苏州知瑞光电材料科技有限公司 | Traction middle part controllable connecting device |
| CN113576117A (en) * | 2021-08-26 | 2021-11-02 | 巨力索具股份有限公司 | Connecting ring with overload warning and protecting functions |
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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: 20090527 Termination date: 20160729 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |