CN105089686A - Anti-impact ground-pressure lengthening anchor rod - Google Patents
Anti-impact ground-pressure lengthening anchor rod Download PDFInfo
- Publication number
- CN105089686A CN105089686A CN201510436875.0A CN201510436875A CN105089686A CN 105089686 A CN105089686 A CN 105089686A CN 201510436875 A CN201510436875 A CN 201510436875A CN 105089686 A CN105089686 A CN 105089686A
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- China
- Prior art keywords
- bar body
- anchor bar
- spring
- anchor rod
- protecting against
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Abstract
The invention relates to an anti-impact ground-pressure lengthening anchor rod. The anti-impact ground-pressure lengthening anchor rod comprises a front anchor rod body, a rear anchor rod body, a fixed sleeve and a spring, wherein the front anchor rod further comprises a baffle block; the spring is mounted at the left side of the baffle block; the right side of the baffle block is in concentric contact with the left side of the rear anchor rod body; the fixed sleeve is arranged on the front anchor rod body in a sleeving mode; an inner structure of the fixed sleeve is a step through hole; and threads are arranged at one end of the rear anchor rod body, and are matched with the fixed sleeve. The anti-impact ground-pressure lengthening anchor rod solves the problem that the supporting effect of a relatively long anchor rod is weakened with the increase of the length, realizes the application of the lengthening anchor rod by adopting a connecting mode, guarantees the reinforcement of the supporting effect, and improves the tensile strain capacity by virtue of the spring arranged at a joint.
Description
Technical field
The present invention relates to mooring rod technique field, press lengthening anchor pole with particularly relating to a kind of protecting against shock.
Background technology
Within the scope of certain length, there is a most reasonably length L in support anchor rod length.When actual supporting length is less than L, supporting effect increases with length and strengthens, and when actual supporting length is greater than L, supporting effect increases with length and weakens.Bump partial pressure type bump, tectonic stress type bump, gravity tectonics stress resultant type bump 3 kinds, facilitate the factor of bump intricate, catastrophe mostly is because it is stressed, require higher to the elastic stress of anchor pole, not so easily occur that anchor pole fractures or the fixing danger not living avalanche.
Patent " spring anchor pole " (CN203867596U) comprises anchor bar body, pallet and hold-down nut, it is characterized in that: also comprise high-strength spring and clip spring seat, high-strength spring and clip spring seat are arranged on the anchor bar body between pallet and hold-down nut, high-strength spring one end is arranged in the top shoulder hole in clip spring seat, and the other end is pressed on the bottom of pallet.Above-mentionedly solve the protection of Short bolt within the scope of certain elastic stretching, but for king-size anchor pole, end spring then can not realize the protection to anchor bar body.
Summary of the invention
The object of the invention is to overcome above-mentioned the deficiencies in the prior art, press lengthening anchor pole with providing a kind of protecting against shock, solve for king-size anchor pole, end spring then can not realize the problem of the protection to anchor bar body.
A kind of protecting against shock ground pressure lengthens anchor pole, comprise front anchor bar body, rear anchor bar body, fixed cover, spring, it is characterized in that, described front anchor bar body also comprises block, described spring fitting in the left side of block, the left side concentric contact of right side and rear anchor bar body, described fixed cover is enclosed within front anchor bar body, internal construction is ladder hole, and described rear anchor bar body one end is provided with screw thread, coordinates with fixed cover.
Further, described fixed cover is metal material, and the do not stress length of state of length and spring is consistent, and ensure that spring one end contacts with block, one section contacts with the notch of fixed cover.
Further, described front anchor bar body is the pipe fitting of an end band block, in order to coordinate with spring.
Further, described rear anchor bar body is surface band screw thread, and one end carries the rod member of drill bit, and the screw-internal thread fit of external screw thread mouth and fixed cover realizes the installation to spring 4.
Further, the length ratio of described front anchor bar body and rear anchor bar body is 1:2 or 1:3, makes front anchor bar body and rear anchor bar body junction near middle position, ensures longer anchor pole elasticity under stress.
Further, described spring is high-strength spring, and largest outer diameter is less than the external diameter of rear anchor bar body, and spring is slided along with block.
Further, described rear anchor bar body one end is provided with screw thread, and supporting also have nut and arch backing plate and stop grouting plug, and rear anchor bar body is consistent with common bolt structure end thread.
Further, described fixed cover is fixed on rear anchor bar body, initial tension of spring anchor pole yield load 30%-50%, makes spring start to produce certain pretightning force.
Press lengthening anchor pole with the invention provides a kind of protecting against shock, compared to existing technology, its beneficial effect is: solve the problem that longer Effects of Supporting weakens with length increase, the mode that employing connects realizes the application to lengthening anchor pole, both ensure that the enhancing of supporting effect, pass through again the spring lifting of the junction arranged tensile strain ability; Achieve and wave impedance sudden change is increased, lengthen anchor pole and realize under prominent strain, enhance the resistivity of bulk strength and strong pretightning force, ensure that good stability.
Accompanying drawing explanation
Below in conjunction with the embodiment in accompanying drawing, the present invention is described in further detail, but do not form any limitation of the invention.
Fig. 1 be a kind of protecting against shock of the present invention press and lengthen the structural representation of anchor pole;
Fig. 2 be a kind of protecting against shock of the present invention press and lengthen the front anchor bar body structural representation of anchor pole;
Fig. 3 be a kind of protecting against shock of the present invention press and lengthen the rear anchor bar body structural representation of anchor pole;
In figure, anchor bar body before 1-, anchor bar body after 2-, 3-fixed cover, 4-spring, 101-block, 201-screw thread.
Detailed description of the invention
In order to make the object of the invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
As shown in Figure 1,2 and 3, a kind of protecting against shock ground pressure lengthens anchor pole, comprise front anchor bar body 1, rear anchor bar body 2, fixed cover 3, spring 4, it is characterized in that, described front anchor bar body 1 also comprises block 101, described spring 4 is arranged on the left side of block 101, the left side concentric contact of right side and rear anchor bar body 2, described fixed cover 3 is enclosed within front anchor bar body 1, and internal construction is ladder hole, described rear anchor bar body 2 one end is provided with screw thread 201, coordinates with fixed cover 3.
Wherein, fixed cover 3 is metal material, and the do not stress length of state of length and spring 4 is consistent, and ensure that spring one end contacts with block 101, one section contacts with the notch of fixed cover 3.
Wherein, front anchor bar body 1 is the pipe fitting of an end band block 101, in order to coordinate with spring 4.
Wherein, rear anchor bar body 2 is surface band screw thread, and one end carries the rod member of drill bit, the screw-internal thread fit of external screw thread mouth and fixed cover 3, realizes the installation to spring 4.
Wherein, front anchor bar body 1 is 1:2 or 1:3 with the length ratio of rear anchor bar body 2, makes front anchor bar body 1 and rear anchor bar body 2 junction near middle position, ensures longer anchor pole elasticity under stress.
Wherein, spring 4 is high-strength spring, and largest outer diameter is less than the external diameter of rear anchor bar body 2, and spring 4 is slided along with block 101.
Wherein, rear anchor bar body 1 one end is provided with screw thread 201, and supporting also have nut and arch backing plate and stop grouting plug, and rear anchor bar body 1 is consistent with common bolt structure end thread 201.
Wherein, fixed cover 3 is fixed on rear anchor bar body 2, initial tension of spring anchor pole yield load 30%-50%, makes spring start to produce certain pretightning force.
More than show and describe general principle of the present invention, principal character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and manual just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.
Claims (8)
1. a protecting against shock ground pressure lengthens anchor pole, comprise front anchor bar body (1), rear anchor bar body (2), fixed cover (3), spring (4), it is characterized in that, described front anchor bar body (1) also comprises block (101), described spring (4) is arranged on the left side of block (101), the left side concentric contact of right side and rear anchor bar body (2), described fixed cover (3) is enclosed within front anchor bar body (1), internal construction is ladder hole, described rear anchor bar body (2) one end is provided with screw thread (201), coordinates with fixed cover (3).
2. a kind of protecting against shock ground according to claim 1 pressure lengthens anchor pole, and it is characterized in that, described fixed cover (3) is metal material, and the do not stress length of state of length and spring (4) is consistent.
3. a kind of protecting against shock ground according to claim 1 pressure lengthens anchor pole, and it is characterized in that, described front anchor bar body (1) is the pipe fitting of an end band block (101).
4. a kind of protecting against shock ground according to claim 1 pressure lengthens anchor pole, and it is characterized in that, described rear anchor bar body (2) is surface band screw thread, and one end carries the rod member of drill bit.
5. a kind of protecting against shock ground according to claim 1 pressure lengthens anchor pole, and it is characterized in that, described front anchor bar body (1) is 1:2 or 1:3 with the length ratio of rear anchor bar body (2).
6. a kind of protecting against shock ground according to claim 1 pressure lengthens anchor pole, and it is characterized in that, described spring (4) is high-strength spring, and largest outer diameter is less than the external diameter of rear anchor bar body (2).
7. a kind of protecting against shock ground according to claim 1 pressure lengthens anchor pole, and it is characterized in that, described front anchor bar body (1) one end is provided with screw thread, and supporting also have nut and arch backing plate and stop grouting plug.
8. a kind of protecting against shock ground according to claim 1 pressure lengthens anchor pole, and it is characterized in that, described fixed cover (3) is fixed on rear anchor bar body (2), initial tension of spring anchor pole yield load 30%-50%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510436875.0A CN105089686A (en) | 2015-07-23 | 2015-07-23 | Anti-impact ground-pressure lengthening anchor rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510436875.0A CN105089686A (en) | 2015-07-23 | 2015-07-23 | Anti-impact ground-pressure lengthening anchor rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105089686A true CN105089686A (en) | 2015-11-25 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510436875.0A Pending CN105089686A (en) | 2015-07-23 | 2015-07-23 | Anti-impact ground-pressure lengthening anchor rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105089686A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105298525A (en) * | 2015-11-19 | 2016-02-03 | 辽宁工程技术大学 | Anti-shock ground pressure lengthening anchor rod |
| CN105649664A (en) * | 2016-03-08 | 2016-06-08 | 安徽理工大学 | Connectable ultralong anchor rod |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87202281U (en) * | 1987-02-21 | 1987-12-31 | 中国矿业学院 | Extrusion type extendible anchor rod |
| US20120230774A1 (en) * | 2011-03-10 | 2012-09-13 | Richard Podesser | Sliding anchor |
| CN103643977A (en) * | 2013-11-21 | 2014-03-19 | 中国矿业大学 | Full-anchor partition pressure transferring grouting anchor rod and application method thereof |
| CN203867599U (en) * | 2014-06-08 | 2014-10-08 | 衢州市优德工业设计有限公司 | Underground construction roadway pressure yielding anchor rod |
| CN204984459U (en) * | 2015-08-27 | 2016-01-20 | 殷旺 | Prevent rock burst extension stock |
-
2015
- 2015-07-23 CN CN201510436875.0A patent/CN105089686A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87202281U (en) * | 1987-02-21 | 1987-12-31 | 中国矿业学院 | Extrusion type extendible anchor rod |
| US20120230774A1 (en) * | 2011-03-10 | 2012-09-13 | Richard Podesser | Sliding anchor |
| CN103643977A (en) * | 2013-11-21 | 2014-03-19 | 中国矿业大学 | Full-anchor partition pressure transferring grouting anchor rod and application method thereof |
| CN203867599U (en) * | 2014-06-08 | 2014-10-08 | 衢州市优德工业设计有限公司 | Underground construction roadway pressure yielding anchor rod |
| CN204984459U (en) * | 2015-08-27 | 2016-01-20 | 殷旺 | Prevent rock burst extension stock |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105298525A (en) * | 2015-11-19 | 2016-02-03 | 辽宁工程技术大学 | Anti-shock ground pressure lengthening anchor rod |
| CN105649664A (en) * | 2016-03-08 | 2016-06-08 | 安徽理工大学 | Connectable ultralong anchor rod |
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| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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Application publication date: 20151125 |