CN204985262U - Locking stock nut that moves for coal mine - Google Patents
Locking stock nut that moves for coal mine Download PDFInfo
- Publication number
- CN204985262U CN204985262U CN201520733717.7U CN201520733717U CN204985262U CN 204985262 U CN204985262 U CN 204985262U CN 201520733717 U CN201520733717 U CN 201520733717U CN 204985262 U CN204985262 U CN 204985262U
- Authority
- CN
- China
- Prior art keywords
- nut
- pipeline section
- screw pipeline
- concavity
- screw
- 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 nut of stock pretension specifically is locking stock nut that moves for coal mine. Locking stock nut that moves for coal mine, including concavity nut and convex nut, the outside extension of the screw of convex nut has the longitudinal section to be trapezoidal screw pipeline section, and screw pipeline section off -centre processes into, the outside extension of terminal surface of concavity nut has screw pipeline section ring body, screw pipeline section on the convex nut can and the concavity nut on screw pipeline section ring body cooperate. Use two kinds of nuts that are " concave " protruding " shape on a stock, the screw pipeline section off -centre on the convex nut of below is processed into, plays the effect of wedge, and off centre's processing is not done to the screw pipeline section ring body on the concavity nut of top, so formed the function that the wedge was beaten to the hammer, such two nuts unites two into one, effective problem of becoming flexible of solving.
Description
Technical field
The utility model relates to the nut for anchor pole pretension, is specially the anti-loosening anchor rod nut in colliery.
Background technique
At present, in coal mine roadway driving, popularization and application bolt-mesh-spurting supporting.Anchor rod body uses resin medicine to carry out anchoring, and anchor pole head uses pallet, ball pad, nut to carry out pretension, plays active support effect to country rock.But after using plain nut to carry out pretension to anchor pole, if whitewashing not in time, face firing impacts and when slagging tap, lashing of rock rake wire rope all can cause nut to loosen, and reduces or loses support action, causing potential safety hazard.
Summary of the invention
The utility model, in order to solve plain nut to the problem easily loosening and then reduce pretightening force after anchor pole pretension, provides the anti-loosening anchor rod nut in colliery.
The utility model adopts following technological scheme to realize: the anti-loosening anchor rod nut in colliery, comprise concavity nut and convex nut, it is trapezoidal screw pipeline section that the screw of convex nut is outward extended with longitudinal section, and screw pipeline section eccentric processing is made, the end face of concavity nut is outward extended with screw pipeline section ring body, and the screw pipeline section energy on convex nut and the screw pipeline section ring body on concavity nut coordinate.
An anchor pole uses two kinds of nuts in " recessed " " convex " shape, screw pipeline section eccentric processing on the convex nut of below is made, play the effect of chock, screw pipeline section ring body on the concavity nut of top does not do off-centered processing (circular processing), so define the function that Chui Wedged makes chock, two nuts like this unite two into one, and effectively solve the problem of loosening.
The beneficial effects of the utility model be can effectively reduce because blowing out, nut that external impacts causes loosens, pretightening force decline phenomenon, strengthens suspension roof support safety.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of concavity nut.
Fig. 3 is the structural representation of convex nut.
In figure: 1-concavity nut, 2-convex nut, 3-screw pipeline section, 4-screw pipeline section ring body.
Embodiment
The anti-loosening anchor rod nut in colliery, comprise concavity nut 1 and convex nut 2, it is trapezoidal screw pipeline section 3 that the screw of convex nut 2 is outward extended with longitudinal section, and screw pipeline section 3 eccentric processing is made, the end face of concavity nut 1 is outward extended with screw pipeline section ring body 4, and screw pipeline section 3 energy on convex nut 2 and the screw pipeline section ring body 4 on concavity nut 1 coordinate.
Claims (1)
1. the anti-loosening anchor rod nut in colliery, it is characterized in that comprising concavity nut (1) and convex nut (2), it is trapezoidal screw pipeline section (3) that the screw of convex nut (2) is outward extended with longitudinal section, and screw pipeline section (3) eccentric processing is made, the end face of concavity nut (1) is outward extended with screw pipeline section ring body (4), and screw pipeline section (3) energy on convex nut (2) and the screw pipeline section ring body (4) on concavity nut (1) coordinate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520733717.7U CN204985262U (en) | 2015-09-22 | 2015-09-22 | Locking stock nut that moves for coal mine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520733717.7U CN204985262U (en) | 2015-09-22 | 2015-09-22 | Locking stock nut that moves for coal mine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204985262U true CN204985262U (en) | 2016-01-20 |
Family
ID=55119635
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520733717.7U Expired - Fee Related CN204985262U (en) | 2015-09-22 | 2015-09-22 | Locking stock nut that moves for coal mine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204985262U (en) |
-
2015
- 2015-09-22 CN CN201520733717.7U patent/CN204985262U/en not_active Expired - Fee Related
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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: 20160120 Termination date: 20160922 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |