CN2057459U - Stretchable anchoring-bolt - Google Patents
Stretchable anchoring-bolt Download PDFInfo
- Publication number
- CN2057459U CN2057459U CN 89206546 CN89206546U CN2057459U CN 2057459 U CN2057459 U CN 2057459U CN 89206546 CN89206546 CN 89206546 CN 89206546 U CN89206546 U CN 89206546U CN 2057459 U CN2057459 U CN 2057459U
- Authority
- CN
- China
- Prior art keywords
- sleeve
- anchor pole
- rod
- steel pipe
- anchor
- 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.)
- Withdrawn
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Abstract
Disclosed is a stretchable anchoring-bolt applied to rock support in underground engineering, which is mainly composed of a rod body of steel pipe with a slot section (1) and a sleeve barrel (2). The resistance and amount of elongation are provided by the frictional sliding between the slot pipe and the sleeve barrel. The anchoring bolt has the advantages of simple structure, constant stretching function, adjustable working resistance and adjustable amount of elongation. The device is in particular applied to large underground engineering support.
Description
The utility model a kind of stretched anchor pole that is used for the underground engineering wall rock supporting of touching upon.
The utility model is simplified and is improved at can the stretch structure of anchor pole (patent No. ZL872071286) of tubular type friction, make under the constant prerequisite of its mechanical property, supporting effect, and can reduce manufacturing cost, and can require to select multi-form stretched anchor pole according to working condition.
The utility model has been done following simplification and improvement to the tubular type friction anchor pole that can stretch:
1. friction sleeve pipe and the stroke cover that links together with two sections different-diameters in the anchor pole that the tubular type friction can be stretched is reduced to one section steel pipe.(being called sleeve).
2. the body of rod of anchor pole of the tubular type friction can being stretched is changed into one section steel pipe that cracks of one section round steel welding and being made by the reducing steel pipe that cracks.
3. cancellation replaces at the sleeve afterbody the female round nut that stops is installed at can stretch block piece that the anchor rod body end is provided with of tubular type friction.
4. the Sliding Structures formed with crack steel pipe and friction sleeve pipe of the tubular type friction can being stretched in the anchor pole also can be arranged on the anchor hole aperture by being arranged on to be improved at the bottom of the anchor hole hole at the bottom of both can being arranged on the anchor hole hole, so that applying unit is selected for use arbitrarily.
Brief description of the present utility model and accompanying drawing:
Fig. 1 is can the stretch assembling drawing of anchor pole of I type.
Fig. 2 is can the stretch structure chart of anchor rod body of I type.
Fig. 3 is that I type and the II type anchor pole that can stretch stops the structure chart of round nut.
Fig. 4 is the I type anchor pole tube-in-tube structure figure that can stretch.
Fig. 5 is can the stretch assembling drawing of anchor pole of II type.
Fig. 6 is can the stretch body of rod structure chart of anchor pole of II type.
Fig. 7 is can the stretch tube-in-tube structure figure of anchor pole of II type.
Task of the present utility model realizes by following proposal, shown in Fig. 1,5,2. 1. the body of rod clamp-on sleeve by mechanical force, produce the working resistance of anchor pole, for the I type anchor pole that can stretch, sleeve 2. with the anchoring agent 7. be anchored at anchor hole 8. the bottom, by tighten the body of rod 1. afterbody hex nut 6. so that supporting plate 5. 8. be adjacent to anchor hole. When country rock is out of shape, the body of rod 1. suffered pulling force increases, when 1. pulling force surpasses the body of rod and during the frictional force of sleeve between 2., 1. the body of rod slides to the aperture, when slide into the body of rod 1. crack steel pipe with stop that round nut is 3. during the contact position, namely stop the body of rod 1. to continue to slide, body of rod steel pipe and the sleeve frictional force between 2. of cracking 1. is the anchor pole working resistance, and 2. sleeve is the elongation amount with the difference of the length of the steel pipe that cracks. For the II type can stretch its slide construction of anchor pole anchor hole 8. mouthful near. 7. the body of rod anti-fried dough twist section 1. is anchored at 8. bottom of anchor hole with the anchoring agent, when country rock is out of shape, act on that 1. pulling force that 2. sleeve go up surpasses the body of rod and during the frictional force of sleeve between 2., 2. sleeve slides to the aperture, when sleeve 2. slide into the body of rod 1. crack steel pipe when stopping that 3. round nut contacts, just stop to slide, the working resistance of anchor pole and amount of tension are with the I type anchor pole that can stretch.
In a word, the anchor pole that can stretch has simple in structure, and first anchor power is big, and working resistance is stable, the advantage that resistance and elongation amount can arbitrarily be regulated.
Below in conjunction with accompanying drawing two embodiment that the utility model provides are further described:
Fig. 1 is can the stretch assembling drawing of anchor pole of I type, it by the body of rod 1., sleeve 2., stop round nut 3., pad 4., supporting plate 5., hex nut 6., 7. the anchoring agent constitutes, and 8. is that 4. anchor hole, pad stop that 7. the anchoring agent enters in the sleeve.
Fig. 2 is can the stretch body of rod structure chart 1. of anchor pole of I type, and it is welded by same section steel pipe that cracks of round bar, is shaped on screw thread in the round steel end, hex nut to be installed 6..
Fig. 3 be I type and II type can stretch anchor pole stop round nut structure chart 3., be shaped on internal thread on it so that 2. be connected with sleeve, a circular hole is opened at the center, makes the body of rod 1. pass through.Fig. 4 is can the stretch sleeve structure chart 2. of anchor pole of I type, and it is that one section isodiametric steel pipe one end is shaped on screw thread, is used for installing stopping that round nut 3..
Fig. 5 is can the stretch assembling drawing of anchor pole of II type, it by the body of rod 1., sleeve 2., stop round nut 3., back-up ring 4., supporting plate 5., hex nut 6., 7. the anchoring agent is formed, and 8. is anchor hole.
Fig. 6 is the II type anchor rod body structure chart 1. that can stretch, and the round steel afterbody is pounded and twisted into anti-twisted shape after flat, and pinnacle at 45 is cut in its end, welds a back-up ring 4. for guaranteeing anchorage length at round steel and fried dough twist body junction, and last round steel is with the steel pipe connection of cracking.
Fig. 7 is can the stretch sleeve structure chart 2. of anchor pole of II type, and it is made two ends by one section steel pipe and is shaped on screw thread, 6. reaches and stops that round nut 3. in order to hex nut to be installed.
Claims (5)
1, a kind of stretched anchor pole that is used for the underground engineering wall rock supporting, mainly by the body of rod 1. sleeve 2. form, it is characterized in that 1. the body of rod is welded by one section round steel and one section steel pipe that cracks; 2. sleeve is formed with being threaded by the round nut that stops of one a section isodiametric steel pipe and a center drilling; The above-mentioned body of rod 1. crack steel pipe end overhead in sleeve 2. in, together be anchored at anchor hole bottom 8., and the frictional force by therebetween realizes the purpose that anchor pole can stretch.
2, the anchor pole that stretches according to claim 1 is characterized in that a body of rod end 1. is the split steel pipe, and the other end is anti-twisted shape.
3,, it is characterized in that 2. sleeve is installed in anchor hole position, aperture 8. according to claim 1, the 2 described anchor poles that stretch.
4, the anchor pole that stretches according to claim 3 is characterized in that 2. sleeve is shaped on screw thread in two ends.
5, the anchor pole that stretches according to claim 3, it is characterized in that sleeve 2. an end be shaped on screw thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89206546 CN2057459U (en) | 1989-04-27 | 1989-04-27 | Stretchable anchoring-bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89206546 CN2057459U (en) | 1989-04-27 | 1989-04-27 | Stretchable anchoring-bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2057459U true CN2057459U (en) | 1990-05-23 |
Family
ID=4863574
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 89206546 Withdrawn CN2057459U (en) | 1989-04-27 | 1989-04-27 | Stretchable anchoring-bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2057459U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102094662A (en) * | 2011-03-15 | 2011-06-15 | 北京科技大学 | Friction sleeve type large deformation anchor rod |
| CN104265339A (en) * | 2014-09-19 | 2015-01-07 | 辽宁工程技术大学 | Extrusion and friction type energy absorption anchor rod |
| CN104594928A (en) * | 2014-12-31 | 2015-05-06 | 中国矿业大学 | Four-dimensional support large deformation anchor rod |
| CN107489437A (en) * | 2017-09-26 | 2017-12-19 | 湖南科技大学 | A kind of anchor pole and anchoring process for deep tunnel soft-rock slope |
| CN110578542A (en) * | 2019-09-19 | 2019-12-17 | 中国矿业大学 | High-stress rock burst roadway anchor rod, design method and working method |
-
1989
- 1989-04-27 CN CN 89206546 patent/CN2057459U/en not_active Withdrawn
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102094662A (en) * | 2011-03-15 | 2011-06-15 | 北京科技大学 | Friction sleeve type large deformation anchor rod |
| CN102094662B (en) * | 2011-03-15 | 2013-04-03 | 北京科技大学 | Friction sleeve type large deformation anchor rod |
| CN104265339A (en) * | 2014-09-19 | 2015-01-07 | 辽宁工程技术大学 | Extrusion and friction type energy absorption anchor rod |
| CN104265339B (en) * | 2014-09-19 | 2016-08-24 | 辽宁工程技术大学 | A kind of extruding, friction-type energy-absorption anchor rod |
| CN104594928A (en) * | 2014-12-31 | 2015-05-06 | 中国矿业大学 | Four-dimensional support large deformation anchor rod |
| CN107489437A (en) * | 2017-09-26 | 2017-12-19 | 湖南科技大学 | A kind of anchor pole and anchoring process for deep tunnel soft-rock slope |
| CN110578542A (en) * | 2019-09-19 | 2019-12-17 | 中国矿业大学 | High-stress rock burst roadway anchor rod, design method and working method |
| CN110578542B (en) * | 2019-09-19 | 2020-09-08 | 中国矿业大学 | High-stress rock burst roadway anchor rod, design method and working method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |