CN201236717Y - Yielding device - Google Patents
Yielding device Download PDFInfo
- Publication number
- CN201236717Y CN201236717Y CNU2008200267224U CN200820026722U CN201236717Y CN 201236717 Y CN201236717 Y CN 201236717Y CN U2008200267224 U CNU2008200267224 U CN U2008200267224U CN 200820026722 U CN200820026722 U CN 200820026722U CN 201236717 Y CN201236717 Y CN 201236717Y
- Authority
- CN
- China
- Prior art keywords
- yielding
- anchor
- wire
- yielding device
- rod
- 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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- Supports For Pipes And Cables (AREA)
Abstract
The utility model discloses a yielding device, belongs to overload protection devices for mine supporting devices, and is used for overcoming the phenomenon that the rod body of an anchor rod or the wire body of an anchor wire can be ruptured frequently under the action of powerful external force. The yielding device has a pipy structure, wherein, a yielding arc is arranged at the middle part of the yielding device; and the figure of the yielding arc is a single-unit or multi-unit arc-shaped structure. Powerful external force can be generated when the deformation of rock mass or coal layers is generated, and then the yielding device can be deformed to yield before the rod body or the wire body reaches a yield point, therefore, the overload of the rod body of the anchor rod or the wire body of the anchor wire can not be caused so that the yielding device plays a protective role; no rupture occurs so that the service life of the anchor rod or the anchor wire is prolonged. The yielding device is widely applied to mines, in particular to coal mines.
Description
Technical field:
The utility model relates to a kind of overload protection arrangement of mine support product, especially a kind of depressor that allows.
Background technology:
The utility model is in order to solve coal mine support product anchor cable, anchor pole disrumpent feelings problem often to take place under the condition of high external force, large deformation, under the condition of deep-well the earth pressure, large deformation mine, anchor pole, anchor cable are not having safety allow under the condition of depressor, a large amount of disrumpent feelings generations are arranged, cause very big harm to the colliery safety in production.
Summary of the invention:
The purpose of this utility model provides a kind of depressor that allows, and can allow not load, thereby the protection body of rod or cable body overcome the disrumpent feelings phenomenon that goes up anchor pole or anchor cable.
The purpose of this utility model realizes as follows: allow depressor in tubular construction.
The tubular structure middle part is provided with to allow presses the arc structure.
Allowing and pressing the arc structure is single-unit or more piece.
Effect of the present utility model is: after rock mass or coal seam deform; with the powerful external force effect that produces; before the body of rod or cable body reach yield point; allow depressor begin distortion and allow pressure; can not cause anchor rod body or cable body overload; the body of rod or cable body are played a protective role, disrumpent feelings phenomenon can not take place, thereby prolong anchor pole or anchor cable application life.
Description of drawings:
Fig. 1 is the structural representation of the utility model embodiment 1.
Fig. 2 is the structural representation of the utility model embodiment 2.
The specific embodiment:
With reference to Fig. 1, the utility model in tubular construction, the middle part is provided with to allow presses arc 1, profile is the single-unit arc structure.
Embodiment 2
With reference to Fig. 2, the utility model in tubular construction, the middle part is provided with to allow presses arc 1, profile to be three joint arc structures.
Claims (3)
1, a kind of depressor that allows is characterized in that in tubular construction.
2, a kind of depressor that allows according to claim 1 is characterized in that: the tubular structure middle part is provided with to allow presses arc (1) structure.
3, a kind of depressor that allows according to claim 1 is characterized in that: allowing and pressing arc (1) structure is single-unit or more piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200267224U CN201236717Y (en) | 2008-07-29 | 2008-07-29 | Yielding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200267224U CN201236717Y (en) | 2008-07-29 | 2008-07-29 | Yielding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201236717Y true CN201236717Y (en) | 2009-05-13 |
Family
ID=40649456
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200267224U Expired - Fee Related CN201236717Y (en) | 2008-07-29 | 2008-07-29 | Yielding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201236717Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102852534A (en) * | 2012-10-18 | 2013-01-02 | 山东大学 | Quantitative yielding node applicable to underground engineering support lagging jack |
-
2008
- 2008-07-29 CN CNU2008200267224U patent/CN201236717Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102852534A (en) * | 2012-10-18 | 2013-01-02 | 山东大学 | Quantitative yielding node applicable to underground engineering support lagging jack |
| CN102852534B (en) * | 2012-10-18 | 2015-04-15 | 山东大学 | Quantitative yielding node applicable to underground engineering support lagging jack |
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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: 20090513 Termination date: 20150729 |
|
| EXPY | Termination of patent right or utility model |