CN104696333A - External hanging type detachable hole expanding anchor bolt - Google Patents
External hanging type detachable hole expanding anchor bolt Download PDFInfo
- Publication number
- CN104696333A CN104696333A CN201510120367.1A CN201510120367A CN104696333A CN 104696333 A CN104696333 A CN 104696333A CN 201510120367 A CN201510120367 A CN 201510120367A CN 104696333 A CN104696333 A CN 104696333A
- Authority
- CN
- China
- Prior art keywords
- locking key
- hollow sleeve
- bolt
- key blade
- external hanging
- 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.)
- Pending
Links
- 230000000694 effects Effects 0.000 claims description 10
- 238000009434 installation Methods 0.000 claims description 5
- 238000011900 installation process Methods 0.000 abstract 1
- 238000004873 anchoring Methods 0.000 description 7
- 230000032683 aging Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- PPTYJKAXVCCBDU-UHFFFAOYSA-N Rohypnol Chemical compound N=1CC(=O)N(C)C2=CC=C([N+]([O-])=O)C=C2C=1C1=CC=CC=C1F PPTYJKAXVCCBDU-UHFFFAOYSA-N 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008961 swelling Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 210000005036 nerve Anatomy 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B13/00—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose
- F16B13/04—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front
- F16B13/08—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front with separate or non-separate gripping parts moved into their final position in relation to the body of the device without further manual operation
- F16B13/0833—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front with separate or non-separate gripping parts moved into their final position in relation to the body of the device without further manual operation with segments or fingers expanding or tilting into an undercut hole
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Load-Engaging Elements For Cranes (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
The invention discloses an external hanging type detachable hole expanding anchor bolt, and belongs to a mechanical bolt. The external hanging type detachable hole expanding anchor bolt comprises a threaded rod which is arranged inside a hollow sleeve, wherein a conical expansion head is arranged on the outer side of one end of the threaded rod, the other end of the threaded rod extends out of the upper end of the hollow sleeve, and a nut is arranged at the end, extending out of the hollow sleeve, of the threaded rod. At least two locking key blades are movably arranged at the end, corresponding to the conical expansion head, of the hollow sleeve. Elastic limiting devices are arranged at the tail ends of the locking key blades respectively. In the installation process, the hollow sleeve is forced to move up and down through the nut on the threaded rod, the locking key blades hung at the lower end of the hollow sleeve expand through the conical expansion head, a conical hole wall, the locking key blades and the conical expansion head are completely matched, and therefore a bolt is anchored in an expansion hole; when the nut is rotated in the reverse direction to be unscrewed and the top end of the threaded rod is slightly hit, the conical expansion head moves towards the hole bottom, and the whole bolt can be taken out of the expansion hole after the expansion state of the locking key blades is relieved without damaging the hole wall of the expansion hole.
Description
Technical field
The present invention relates to a kind of mechanical anchor, in particular, the present invention relates generally to the detachable reaming crab-bolt of a kind of external hanging type.
Background technique
Installation in the engineerings such as nuclear power station, power station, subway, tunnel, basis be fixing is fixed, and often adopt post-anchoring technology, in industrial civil building engineering, the status of post-anchoring technology is more and more important.If the inefficacy of rear anchor system directly can bring the loss of life and property, so adopt reliable anchor system to be necessary, but aging replacing is more important.Rear anchoring product, from bearing mechanism point, mainly contains friction, mechanical caging and chemical bonding three types, and the expansion process wherein realizing connecting with frictional force connects firm not, and breakout capacity is poor; Common rear reaming mechanical anchor and cannot carry out foramen primum replacing after reaming mechanical anchor is installed, if along with the transition of time, crab-bolt is aging to be upgraded.At present, the rear reaming crab-bolt that particularly track traffic adopts is all to dismantle product, after 5 years, 10 years or more than ten years, crab-bolt is aging, how to change, and a lot of enterprise and research institution can be allowed to change aging mechanical anchor to overtax one's nerves effort, non-removable crab-bolt replacement cost is higher, change long in time limit, and it is attractive in appearance to affect engineering, is therefore necessary do further research for the demountable structure of crab-bolt and improve.
Summary of the invention
An object of the present invention is for above-mentioned deficiency, there is provided a kind of external hanging type detachable reaming crab-bolt, cannot dismantle to expect to solve after installation fastened by reaming machinery anchor in prior art, as dismounting can cause hole wall to damage by force, cannot the technical problems such as foramen primum replacing be carried out.
For solving above-mentioned technical problem, the present invention by the following technical solutions:
The detachable reaming crab-bolt of a kind of external hanging type provided by the present invention, comprise screw rod, described screw rod is placed in the inside of hollow sleeve, and be provided with tapered expansion head outside one end of described screw rod, the other end of described screw rod is stretched out by the upper end of hollow sleeve, and one end that described screw rod stretches out hollow sleeve is provided with nut; One end that described hollow sleeve is corresponding with tapered expansion head being movably installed with at least two panels locking key blade, the end of described locking key blade being all provided with the elastic limit device for making locking key blade fit in hollow sleeve end.
As preferably, further technological scheme is: be also provided with plain washer between described nut and the upper end of hollow sleeve; The outside of described hollow sleeve is also provided with the circular groove for installing resistance konisphere.
Further technological scheme is: be provided with plug-in track outside one end that described hollow sleeve is corresponding with tapered expansion head, the inner side of described locking key blade is equipped with the first U-type groove matched with described plug-in track, plug-in track is formed activity install for being hung on by the first U-type groove by locking key blade.
Further technological scheme is: described elastic limit device is jump ring, and described jump ring is arranged in the second U-type groove outside locking key blade end.
Further technological scheme is: the outside of described locking key blade is also provided with the 3rd U-type groove for being set with strapping strand.
Further technological scheme is: the cross section of described locking key blade is all curved, and equal with the radian of hollow sleeve.
Further technological scheme is: described first U-type groove, the second U-type groove, the 3rd U-type groove are all in the arc equal with locking key leaf cross-section radian.
Further technological scheme is: described locking key blade is three, and is all movably arranged on outside hollow sleeve one end corresponding with tapered expansion head.
Further technological scheme is: described described locking key blade is three, and the radian of described three locking key leaf cross-sections is 120 degree.
Further technological scheme is: the upper end of described hollow sleeve is also provided with at least two lifting bayonet sockets in inverted T-shaped or L-type.
Compared with prior art, one of beneficial effect of the present invention is: force hollow sleeve to move up and down by the nut on screw rod during installation, thus the locking key blade making hollow sleeve lower end outside hang expands under the effect of tapered expansion head, and constantly locking key blade is pushed to the cone shape hole hole wall expanded by nut, until taper hole wall, locking key blade and tapered expansion head fit like a glove, and then in reaming, form anchoring in crab-bolt; And when counterrotating is unclamped nut and touched the top of screw rod, tapered expansion head can be made to move at the bottom of hole, after removing the swelling state of locking key blade, crab-bolt entirety can be taken out from reaming, and reaming hole wall is not damaged; A kind of external hanging type provided by the present invention detachable reaming crab-bolt structure is simple simultaneously, and be suitable for industrial production, and be suitable for using in the various engineering such as track traffic, nuclear power station, power station, application area is wide.
Accompanying drawing explanation
Fig. 1 is the overall cross-sectional view of crab-bolt for illustration of one embodiment of the invention;
Fig. 2 is for illustration of the locking key blade structure schematic diagram in one embodiment of the invention;
Fig. 3 is for illustration of the hollow sleeve cross-sectional view in one embodiment of the invention;
Fig. 4 is the using state schematic diagram for illustration of crab-bolt in one embodiment of the invention;
In figure, 1 be screw rod, 2 be hollow sleeve, 3 be tapered expansion head, 4 be nut, 5 be locking key blade, 6 be plain washer, 7 be plug-in track, 8 to be the first U-type groove, 9 be the second U-type groove, 10 for jump ring, 11 be the 3rd U-type groove, 12 for lifting bayonet socket, 13 be circular groove.
Embodiment
Below in conjunction with accompanying drawing, the present invention is further elaborated.
Shown in figure 1, one embodiment of the present of invention are the detachable reaming crab-bolts of a kind of external hanging type, comprise screw rod 1, this screw rod 1 is placed in the inside of hollow sleeve 2, and one end of screw rod 1 needs arrange tapered expansion 3, the other end of this screw rod 1 is stretched out by the upper end of hollow sleeve 2, and mounting nuts 4 on the one end of stretching out hollow sleeve 2 at screw rod 1; What is more important, be movably installed with at least two panels locking key blade 5 outside one end that empty set pipe 2 and tapered expansion 3 is corresponding in the preamble, and on the end of locking key blade 5, the elastic limit device for making locking key blade 5 fit in hollow sleeve 2 end be all installed.
In the present embodiment, hollow sleeve is forced to move up and down by the nut on screw rod, thus the locking key blade making hollow sleeve lower end outside hang expands under the effect of tapered expansion head, and constantly locking key blade is pushed to the cone shape hole hole wall expanded by nut, until taper hole wall, locking key blade and tapered expansion head fit like a glove, and then in reaming, form anchoring in crab-bolt; And when counterrotating is unclamped nut and touched the top of screw rod, tapered expansion head can be made to move at the bottom of hole, after removing the swelling state of locking key blade, crab-bolt entirety can be taken out from reaming, and reaming hole wall is not damaged.Screw rod 1 and tapered expansion 3 can be one-time formed entirety, also can be assemblying body separately, and the maximum diameter of its tapered expansion 3 need be not less than screw rod 1 and hollow sleeve 2.
On the other hand, install at the bottom of rear silt or dust access aperture to prevent crab-bolt, in another embodiment of the invention, the circular groove 13 for installing resistance konisphere also can be set up in the outside of above-mentioned hollow sleeve 2, and this resistance konisphere can be annular rubber ring or other have certain flexible annular ring, the size of circle must be the bottom that groove can be close in inner side, outside is greater than the external diameter of sleeve pipe slightly, so that in crab-bolt using process and the gap of hole wall is disconnected, and then prevents from causing crab-bolt in the future to take out at the bottom of silt or dust access aperture.Inventor is also with reference to prior art simultaneously, sets up plain washer 6, for nut 4 and hollow sleeve 2 provide better surface of contact between above-mentioned nut 4 and the upper end of hollow sleeve 2.
Shown in figure 3, for ease of taking out crab-bolt from reaming, at least two lifting bayonet sockets 12 in inverted T-shaped or L-type also can be set up in the upper end of hollow sleeve 2.
As mentioned here above, the technical way of technical solution problem of the present invention by tapered expansion 3, locking key blade 5 is outwards expanded, thus supporting is formed in reaming, thus be used in the preferred embodiment of technical solution problem in the present invention, a kind of locking key blade 5 preferred structure that activity is installed is provided, shown in composition graphs 3, be specially and set up plug-in track 7 outside one end that hollow sleeve 2 and tapered expansion 3 is corresponding, the first U-type groove 8 matched with described plug-in track 7 is equipped with again in the inner side of locking key blade 5, thus, locking key blade 5 can be made to hang on formation activity on plug-in track 7 by the first U-type groove 8 install.Further, for simplified structure, reduce the cost of production of crab-bolt, jump ring 10 also can be adopted as above-mentioned elastic limit device, jump ring 10 is arranged in the second U-type groove 9 outside locking key blade 5 end, this jump ring 10 is that opening is very little or almost do not have the C shape steel traveler of opening, and also can be used to can not depart from plug-in track 7 when ensureing that locking key blade 5 opens laterally, the outside assembling rear jump ring 10 must not higher than the outer side surface of hollow sleeve 2.
Simultaneously for ensureing when non-installment state, locking key blade 5 also can be close to screw rod surrounding, the 3rd U-type groove 11 for being set with strapping strand also can be set up in the outside of locking key blade 5, this strapping strand is one and is embedded in binding groove the elastic cord having certain telescopic resilience, fixed by strapping strand, crab-bolt can be made to insert in reaming easily.
Above-mentioned clear and definite, the effect of locking key blade 5 expands to make crab-bolt form anchoring in reaming, as long as therefore it meets the means of fixation that above-mentioned activity is installed, for the structure not too much requirement of himself, in other words, locking key blade 5 adopts rule or irregular structure all not to affect the enforcement of technical solution of the present invention; But inventor considers the aesthetic property of crab-bolt, and mutually disturb when avoiding locking key blade 5 to expand, also the cross section of above-mentioned locking key blade 5 is improved to arc, and the radian of locking key blade 5 cross section is equal with the radian of hollow sleeve 2.According on above-mentioned architecture basics, for making each base part that locking key blade 5 is installed all match with the cross section radian of locking key blade 5, preferably also above-mentioned first U-type groove 8, second U-type groove 9, the 3rd U-type groove 11 are also set to the arc equal with locking key blade 5 cross section radian.
Be used in an embodiment being more preferably of technical solution problem in the present invention, be the anchoring effect ensureing that locking key blade 5 expands, directly locking key blade 5 can be set to three, and be all movably arranged on outside one end corresponding to hollow sleeve 2 and tapered expansion 3.The radian of three locking key blade 5 cross sections is preferably set to 120 degree simultaneously.Also locking key blade 5 can be set to more than three according to aforesaid principle, such as four, five, six etc., the quantity of locking key blade 5 contributes to the deformation coefficient improving the generation when expanding stressed of locking key blade.
Shown in Fig. 1, the above-mentioned preferred embodiment of the present invention is in as installed process, hole as requested, and carry out reaming, then in reaming, crab-bolt is implanted, calibration buried depth, and the nut 4 screwed on screw rod 1, nut 4 forces screw rod 1 and drives expansion-head 3 to move outside hole simultaneously, under the effect of tapered expansion 3, the locking key blade 5 of hollow sleeve 2 lower end expands, bundling strap is stretched or ruptures, nut 4 forces screw rod 1 continue to move outside hole and drive expansion-head 3, the hole wall of locking key blade 5 to the cone shape hole expanded constantly is pushed by expansion-head 3, until taper hole wall, locking key blade and tapered expansion head fit like a glove, fastening nut, installation, just best tensile strength can be produced.When disassembly is desired, unclamp the nut 4 on screw rod 1, then screw rod is knocked downwards, tapered expansion 3 is made to sink to the bottom in hole, catch on the L shape of hollow sleeve 2 upper end or the lifting bayonet socket of inverted T-shaped with L shape grab, upwards promote, just can take out hollow sleeve 2 and locking key blade 5, take out screw rod 1 again, dismounting completes.
Than that described above, also it should be noted that spoken of in this manual " embodiment ", " another embodiment ", " embodiment " etc., refer to the specific features, structure or the feature that describe in conjunction with this embodiment and be included at least one embodiment of the application's generality description.Multiple place occurs that statement of the same race is not necessarily refer to same embodiment in the description.Furthermore, when describing specific features, structure or a feature in conjunction with any embodiment, what advocate is also fall within the scope of the invention to realize this feature, structure or feature in conjunction with other embodiments.
Although with reference to multiple explanatory embodiment of the present invention, invention has been described here, but, should be appreciated that, those skilled in the art can design a lot of other amendment and mode of execution, these amendments and mode of execution will drop within spirit disclosed in the present application and spirit.More particularly, in the scope of, accompanying drawing open in the application and claim, multiple modification and improvement can be carried out to the constituent elements of subject combination layout and/or layout.Except the modification of carrying out constituent elements and/or layout is with except improvement, to those skilled in the art, other purposes also will be obvious.
Claims (10)
1. the detachable reaming crab-bolt of external hanging type, comprise screw rod (1), it is characterized in that: described screw rod (1) is placed in the inside of hollow sleeve (2), and one end of described screw rod (1) is provided with tapered expansion head (3), the other end of described screw rod (1) is stretched out by the upper end of hollow sleeve (2), and one end that described screw rod (1) stretches out hollow sleeve (2) is provided with nut (4); Being movably installed with at least two panels locking key blade (5) outside one end that described hollow sleeve (2) is corresponding with tapered expansion head (3), the end of described locking key blade (5) being all provided with the elastic limit device for making locking key blade (5) fit in hollow sleeve (2) end.
2. the detachable reaming crab-bolt of external hanging type according to claim 1, is characterized in that: be also provided with plain washer (6) between the upper end of described nut (4) and hollow sleeve (2); The outside of described hollow sleeve (2) is also provided with the circular groove (13) for installing resistance konisphere.
3. the detachable reaming crab-bolt of external hanging type according to claim 1 and 2, it is characterized in that: outside one end that described hollow sleeve (2) is corresponding with tapered expansion head (3), be provided with plug-in track (7), the inner side of described locking key blade (5) is equipped with the first U-type groove (8) matched with described plug-in track (7), above forms activity installation for hanging on plug-in track (7) by locking key blade (5) by the first U-type groove (8).
4. the detachable reaming crab-bolt of external hanging type according to claim 3, is characterized in that: described elastic limit device is jump ring (10), and described jump ring (10) is arranged in the second U-type groove (9) outside locking key blade (5) end.
5. the detachable reaming crab-bolt of external hanging type according to claim 4, is characterized in that: the outside of described locking key blade (5) is also provided with the 3rd U-type groove (11) for being set with strapping strand.
6. the detachable reaming crab-bolt of external hanging type according to claim 1, is characterized in that: the cross section of described locking key blade (5) is all curved, and equal with the radian of hollow sleeve (2).
7. the detachable reaming crab-bolt of external hanging type according to claim 5, is characterized in that: described first U-type groove (8), the second U-type groove (9), the 3rd U-type groove (11) are all in the arc equal with locking key blade (5) cross section radian.
8. the detachable reaming crab-bolt of external hanging type according to claim 1, is characterized in that: described locking key blade (5) is three, and is all movably arranged on outside hollow sleeve (2) one end corresponding with tapered expansion head (3).
9. the detachable reaming crab-bolt of the external hanging type according to claim 1 or 8, is characterized in that: described described locking key blade (5) is three, and the radian of described three locking key blade (5) cross sections is 120 degree.
10. the detachable reaming crab-bolt of the external hanging type according to claim 1 or 8, is characterized in that: the upper end of described hollow sleeve (2) is also provided with at least two lifting bayonet sockets (12) in inverted T-shaped or L-type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510120367.1A CN104696333A (en) | 2014-05-27 | 2015-03-19 | External hanging type detachable hole expanding anchor bolt |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410230549.XA CN103982504A (en) | 2014-05-27 | 2014-05-27 | Externally-hanging type detachable reaming anchor bolt |
| CN201410230549X | 2014-05-27 | ||
| CN201510120367.1A CN104696333A (en) | 2014-05-27 | 2015-03-19 | External hanging type detachable hole expanding anchor bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104696333A true CN104696333A (en) | 2015-06-10 |
Family
ID=51274611
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410230549.XA Pending CN103982504A (en) | 2014-05-27 | 2014-05-27 | Externally-hanging type detachable reaming anchor bolt |
| CN201510120367.1A Pending CN104696333A (en) | 2014-05-27 | 2015-03-19 | External hanging type detachable hole expanding anchor bolt |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410230549.XA Pending CN103982504A (en) | 2014-05-27 | 2014-05-27 | Externally-hanging type detachable reaming anchor bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN103982504A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106194946A (en) * | 2016-07-11 | 2016-12-07 | 杭州斯泰新材料技术有限公司 | A kind of crab-bolt and the installation method on concrete and mounting structure |
| CN108385711A (en) * | 2018-04-18 | 2018-08-10 | 上海磐武工业科技有限公司 | A kind of anchor cage ring formula basis and its installation method |
| CN111896336A (en) * | 2020-08-12 | 2020-11-06 | 湖北省生态环境监测中心站 | Gas sampling device for environmental monitoring |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110768039A (en) * | 2019-11-01 | 2020-02-07 | 深圳妙格投资控股集团有限公司 | Portable interface module based on 5G communication |
-
2014
- 2014-05-27 CN CN201410230549.XA patent/CN103982504A/en active Pending
-
2015
- 2015-03-19 CN CN201510120367.1A patent/CN104696333A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106194946A (en) * | 2016-07-11 | 2016-12-07 | 杭州斯泰新材料技术有限公司 | A kind of crab-bolt and the installation method on concrete and mounting structure |
| CN108385711A (en) * | 2018-04-18 | 2018-08-10 | 上海磐武工业科技有限公司 | A kind of anchor cage ring formula basis and its installation method |
| CN108385711B (en) * | 2018-04-18 | 2024-03-22 | 浙江星达能源科技有限公司 | Anchor cage ring type foundation and installation method thereof |
| CN111896336A (en) * | 2020-08-12 | 2020-11-06 | 湖北省生态环境监测中心站 | Gas sampling device for environmental monitoring |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103982504A (en) | 2014-08-13 |
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Application publication date: 20150610 |
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