CN203145976U - Recoverable flexible anchor rod device - Google Patents
Recoverable flexible anchor rod device Download PDFInfo
- Publication number
- CN203145976U CN203145976U CN 201320167518 CN201320167518U CN203145976U CN 203145976 U CN203145976 U CN 203145976U CN 201320167518 CN201320167518 CN 201320167518 CN 201320167518 U CN201320167518 U CN 201320167518U CN 203145976 U CN203145976 U CN 203145976U
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- CN
- China
- Prior art keywords
- connecting rod
- attachment cap
- connecting portion
- dowel bar
- bloom
- 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
A recoverable flexible anchor rod device is composed of a connecting cap, a plurality of connecting bars, a dowel bar, a plurality of supporting steel blocks, a plurality of steel wires, a sleeve, a steel plate spring and a plurality of tension springs. The recoverable flexible anchor rod device has the advantages that the anchoring effect provided by an anchoring device can change within a certain range, the phenomenon that the anchoring device is not effective caused by change of the inner diameter of a mounting hole of an anchor rod is avoided, and the recoverable flexible anchor rod device is convenient to install and recoverable.
Description
Technical field
The utility model relates to a kind of anchor pole, relates in particular to a kind of recyclable flexible roof bolt device.
Background technology
Anchor pole has obtained extensive use in engineering circle as the anchoring instrument in a kind of side slope and tunnel.At present, anchor pole mainly divides two kinds: a kind of grouted anchor bar for using always, transmit stress by the gluing between mortar and the hole wall, and owing to solidifying, mortar needs the long period, so be difficult to the effect of performance quick anchoring; Another is mechanical rock bolt, mainly produces anchored force by the friction between anchor pole device and hole wall, but anchored force is the value of applying in advance, when the suffered pulling force of anchor pole greater than just losing efficacy after the value of applying.
The utility model content
At the problem in the background technology, the utility model proposes a kind of recyclable flexible roof bolt device, it is made up of attachment cap, a plurality of connecting rod, dowel bar, a plurality of support bloom, many steel wires, sleeve, leaf spring and a plurality of extension springs;
One end of connecting rod and the axial side wall of attachment cap are rotationally connected, and the other end of connecting rod is rotationally connected with the support bloom; Connecting rod is corresponding one by one with the support bloom;
The extension spring two ends are connected with attachment cap with connecting rod respectively, and connecting rod is corresponding one by one with extension spring;
Attachment cap one end is connected with dowel bar; Attachment cap is connected the place and forms first connecting portion with extension spring, attachment cap and connecting rod junction form second connecting portion, attachment cap is connected the place and forms the 3rd connecting portion with dowel bar, three connecting portions are arranged in order by the order of first connecting portion, second connecting portion, the 3rd connecting portion;
Jacket casing is connected on the dowel bar, and slides mutually between sleeve and the dowel bar;
The steel wire two ends are connected with sleeve with connecting rod respectively, and steel wire and connecting rod are corresponding one by one;
Leaf spring is arranged on the dowel bar.
Operating principle of the present utility model is: when recyclable flexible roof bolt device is in idle state, to maximum displacement place of rotating and resting near first connecting portion, one side on this rotation direction, remaining steel wire, leaf spring all are in relaxed state to connecting rod under the pulling force effect of extension spring; When needs are installed recyclable flexible roof bolt device, earlier sleeve is slided to the direction away from attachment cap, sleeve is with the steel wire tensioning, connecting rod overcomes the pulling force of extension spring to rotating near the 3rd connecting portion one side under the pulling force effect of steel wire, when the circle diameter at the outer edge place of a plurality of support blooms during less than anchor pole installing hole diameter (simultaneously, the largest circumference diameter that the circle diameter at the outer edge place of a plurality of support blooms also should can provide less than the outer edge of a plurality of support blooms), the fixed-site of sleeve is lived, then recyclable flexible roof bolt device is stretched in the anchor pole installing hole that (attachment cap is near at the bottom of the hole, leaf spring is positioned at outside the hole), unclamp sleeve, connecting rod rotates under the pulling force effect of extension spring, at this moment, anchor pole installing hole inwall just interferes with the rotational plane of connecting rod, the connecting rod position is remained on to the angle of the 3rd connecting portion inclination, at this moment, supporting bloom is close on the anchor pole installing hole inwall, adjust the relative position (leaf spring is stuck in outside the hole) of leaf spring and dowel bar then, make leaf spring generation deformation, allow the prestressing force that is subjected to an outside drawing on the dowel bar all the time (make attachment cap also be subjected to the prestressing force of outside drawing in fact, also make connecting rod be subjected to the rotation prestressing force that rotates to first connecting portion indirectly), the setting of recyclable flexible roof bolt device is finished; The benefit of this structure has: in the anchoring process, when if anchor pole installing hole internal diameter changes with land movement: big if anchor pole installing hole internal diameter becomes, connecting rod is rotating under the prestressed effect and can suitably rotate to first connecting portion, to remedy the gap that occurs greatly because of the change of anchor pole installing hole internal diameter; If anchor pole installing hole internal diameter diminishes, connecting rod can continue to be forced to rotate to the direction near the 3rd connecting portion, also driving simultaneously dowel bar moves at the bottom of anchor pole installing hole hole, distortion allowance on the leaf spring still can be with the dowel bar tensioning, to guarantee that recyclable flexible roof bolt device can not lose efficacy, the anchorage effect that recyclable flexible roof bolt device is provided can change within the specific limits; When needs are dismantled recyclable flexible roof bolt device, only need unclamp the fastening devices (relative position between leaf spring and the dowel bar can be regulated by nut) between leaf spring and the dowel bar, and sleeve outwards slided, as the folding umbrella connecting rod being drawn in can take out recyclable flexible roof bolt device;
In order to increase the frictional force that supports between bloom and the anchor pole installing hole inwall, the utility model has also been done following improvement: described support bloom surface is provided with the zigzag texture.
For the ease of installing and folding, the utility model has also been done following improvement: the structure surface of the position corresponding with second connecting portion is provided with first arc groove on the described attachment cap, the structure surface of the position corresponding with second connecting portion is provided with first arc convex on the described connecting rod, first arc convex, one side is provided with first spacing preiection, when connecting rod and attachment cap turned to certain angle mutually, first spacing preiection and attachment cap interfered.Suitably adjust the position of first spacing preiection and first arc convex, the maximum displacement when can the control connection bar rotating to first connecting portion, one side.
For the ease of installing and folding, the utility model has also been done following improvement: support bloom and connecting rod junction and form the 4th connecting portion, the structure surface of supporting position corresponding with the 4th connecting portion on the bloom is provided with second arc groove, the structure surface of the position corresponding with the 4th connecting portion is provided with second arc convex on the described connecting rod, second arc convex, one side is provided with second spacing preiection, when connecting rod turned to certain angle mutually with the support bloom, second spacing preiection interfered with the support bloom.Suitably adjust the position of second spacing preiection and second arc convex, get final product the pivot region scope between control connection bar and the support bloom.
Based on aforementioned schemes, the utility model has also proposed following connecting rod preferred amount: the quantity of described connecting rod is 2,3 or 4, and connecting rod circumferentially evenly distributes along attachment cap.
Useful technique effect of the present utility model is: the anchorage effect that anchor device is provided can change within the specific limits, avoids causing anchor device to lose efficacy because anchor pole installing hole internal diameter changes, and is easy for installation, recyclable.
Description of drawings
(structure shown in the mark A is pin among the figure, and adopting the position of the interim fixed muffle of pin is a kind of preferred version that the utility model proposes for Fig. 1, structural representation of the present utility model; Mark B is depicted as the nut assembly of regulating relative position between leaf spring and the dowel bar among the figure);
Fig. 2, attachment cap structural representation;
Fig. 3, connecting rod structural representation;
Fig. 4, support bloom structural representation.
The specific embodiment
A kind of recyclable flexible roof bolt device, it is made up of attachment cap 1, a plurality of connecting rod 2, dowel bar 3, a plurality of support bloom 4, many steel wires 5, sleeve 6, leaf spring 7 and a plurality of extension springs 8;
One end of connecting rod 2 and the axial side wall of attachment cap 1 are rotationally connected, and the other end of connecting rod 2 is rotationally connected with support bloom 4; Connecting rod 2 is corresponding one by one with support bloom 4;
Extension spring 8 two ends are connected with attachment cap 1 with connecting rod 2 respectively, and connecting rod 2 is corresponding one by one with extension spring 8;
Sleeve 6 is socketed on the dowel bar 3, and slides mutually between sleeve 6 and the dowel bar 3;
Steel wire 5 two ends are connected with sleeve 6 with connecting rod 2 respectively, and steel wire 5 and connecting rod 2 are corresponding one by one;
Leaf spring 7 is arranged on the dowel bar 3.
Further, described support bloom 4 surfaces are provided with the zigzag texture.
Further, the structure surface of the position corresponding with second connecting portion is provided with first arc groove (structure shown in mark C among Fig. 2) on the described attachment cap 1, the structure surface of the position corresponding with second connecting portion is provided with first arc convex (shown in mark D among Fig. 3) on the described connecting rod 2, first arc convex, one side is provided with first spacing preiection (shown in mark E among Fig. 3), when connecting rod 2 and attachment cap 1 turned to certain angle mutually, first spacing preiection and attachment cap 1 interfered.
Further, support bloom 4 and connecting rod 2 junctions and form the 4th connecting portion, the structure surface of supporting position corresponding with the 4th connecting portion on the bloom 4 is provided with second arc groove (shown in mark H among Fig. 4), the structure surface of the position corresponding with the 4th connecting portion is provided with second arc convex (shown in flag F among Fig. 3) on the described connecting rod 2, second arc convex, one side is provided with second spacing preiection (shown in mark G among Fig. 3), when connecting rod 2 turned to certain angle mutually with support bloom 4, second spacing preiection interfered with support bloom 4.
Further, the quantity of described connecting rod 2 is 2,3 or 4, and connecting rod 2 circumferentially evenly distributes along attachment cap 1.
Claims (5)
1. recyclable flexible roof bolt device, it is characterized in that: it is made up of attachment cap (1), a plurality of connecting rod (2), dowel bar (3), a plurality of support bloom (4), many steel wires (5), sleeve (6), leaf spring (7) and a plurality of extension spring (8);
The axial side wall of one end of connecting rod (2) and attachment cap (1) is rotationally connected, and the other end of connecting rod (2) is rotationally connected with support bloom (4); Connecting rod (2) is corresponding one by one with support bloom (4);
Extension spring (8) two ends are connected with attachment cap (1) with connecting rod (2) respectively, and connecting rod (2) is corresponding one by one with extension spring (8);
Attachment cap (1) one end is connected with dowel bar (3); Attachment cap (1) is connected the place with extension spring (8) and forms first connecting portion, attachment cap (1) and connecting rod (2) junction form second connecting portion, attachment cap (1) is connected the place with dowel bar (3) and forms the 3rd connecting portion, and three connecting portions are arranged in order by the order of first connecting portion, second connecting portion, the 3rd connecting portion;
Sleeve (6) is socketed on the dowel bar (3), and slides mutually between sleeve (6) and the dowel bar (3);
Steel wire (5) two ends are connected with sleeve (6) with connecting rod (2) respectively, and steel wire (5) and connecting rod (2) are corresponding one by one;
Leaf spring (7) is arranged on the dowel bar (3).
2. recyclable flexible roof bolt device according to claim 1, it is characterized in that: described support bloom (4) surface is provided with the zigzag texture.
3. recyclable flexible roof bolt device according to claim 1, it is characterized in that: the structure surface that described attachment cap (1) is gone up the position corresponding with second connecting portion is provided with first arc groove, the structure surface that described connecting rod (2) is gone up the position corresponding with second connecting portion is provided with first arc convex, first arc convex, one side is provided with first spacing preiection, when connecting rod (2) and attachment cap (1) when turning to certain angle mutually, first spacing preiection and attachment cap (1) interfere.
4. recyclable flexible roof bolt device according to claim 1, it is characterized in that: support bloom (4) and connecting rod (2) junction and form the 4th connecting portion, support bloom (4) and upward be provided with second arc groove in the structure surface of the position corresponding with the 4th connecting portion, the structure surface that described connecting rod (2) is gone up the position corresponding with the 4th connecting portion is provided with second arc convex, second arc convex, one side is provided with second spacing preiection, when connecting rod (2) with support bloom (4) when turning to certain angle mutually, second spacing preiection with support bloom (4) and interfere.
5. recyclable flexible roof bolt device according to claim 1, it is characterized in that: the quantity of described connecting rod (2) is 2,3 or 4, connecting rod (2) circumferentially evenly distributes along attachment cap (1).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 201320167518 CN203145976U (en) | 2013-04-07 | 2013-04-07 | Recoverable flexible anchor rod device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 201320167518 CN203145976U (en) | 2013-04-07 | 2013-04-07 | Recoverable flexible anchor rod device |
Publications (1)
Publication Number | Publication Date |
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CN203145976U true CN203145976U (en) | 2013-08-21 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN 201320167518 Expired - Fee Related CN203145976U (en) | 2013-04-07 | 2013-04-07 | Recoverable flexible anchor rod device |
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CN (1) | CN203145976U (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105649078A (en) * | 2015-12-30 | 2016-06-08 | 长江大学 | Recyclable hydraulic umbrella-shaped soil-squeezing anchor rod |
CN109869173A (en) * | 2019-03-16 | 2019-06-11 | 李静娴 | A kind of flexible roof bolt |
CN110284915A (en) * | 2019-06-28 | 2019-09-27 | 江苏科技大学 | A kind of imitative root-type anchor pole and its installation method |
CN110925001A (en) * | 2019-11-29 | 2020-03-27 | 华北水利水电大学 | Buffer protection device for preventing anchor cable from being ejected due to failure |
-
2013
- 2013-04-07 CN CN 201320167518 patent/CN203145976U/en not_active Expired - Fee Related
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105649078A (en) * | 2015-12-30 | 2016-06-08 | 长江大学 | Recyclable hydraulic umbrella-shaped soil-squeezing anchor rod |
CN105649078B (en) * | 2015-12-30 | 2017-12-29 | 长江大学 | A kind of recyclable hydraulic pressure umbrella soil compaction anchor pole |
CN109869173A (en) * | 2019-03-16 | 2019-06-11 | 李静娴 | A kind of flexible roof bolt |
CN110284915A (en) * | 2019-06-28 | 2019-09-27 | 江苏科技大学 | A kind of imitative root-type anchor pole and its installation method |
CN110925001A (en) * | 2019-11-29 | 2020-03-27 | 华北水利水电大学 | Buffer protection device for preventing anchor cable from being ejected due to failure |
CN110925001B (en) * | 2019-11-29 | 2021-03-23 | 华北水利水电大学 | Buffer protection device for preventing anchor cable from being ejected due to failure |
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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 | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130821 Termination date: 20160407 |