CN101694227A - Full-expansion anchor bolt - Google Patents
Full-expansion anchor bolt Download PDFInfo
- Publication number
- CN101694227A CN101694227A CN200910235598A CN200910235598A CN101694227A CN 101694227 A CN101694227 A CN 101694227A CN 200910235598 A CN200910235598 A CN 200910235598A CN 200910235598 A CN200910235598 A CN 200910235598A CN 101694227 A CN101694227 A CN 101694227A
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- China
- Prior art keywords
- expand tube
- sleeve pipe
- pushing tow
- full
- combination
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Abstract
The invention discloses a full-expansion anchor bolt, which comprises a screw stem. A nut, an ejector sleeve, a combination expand tube and a box tap are sequentially arranged on the screw stem, the nut, the box tap and the screw stem are connected via threads, the ejector sleeve and the combination expand tube are sleeved on the screw stem, the combination expand tube consists of at least two expansion sheets, the two expansion sheets are fastened with each other via an elastic collar clamp arranged on outer walls of the expansion sheets to form a tubular structure, and matching ends of the ejector sleeve, the box tap and the combination expand tube are arranged into conical surface structures. The combination expand tube is used as an expander, the expansion sheets on the same can be expanded to the periphery after two ends of the expand tube are exerted with force, and then the expansion sheets can be fixed with the wall of a connecting hole. The expansion sheets are in surface contact with the wall of the connecting hole, thereby increasing firmness of connection, achieving a certain centering action and bringing convenience for installation among connecting pieces.
Description
Technical field
The present invention relates to a kind of full-expansion anchor bolt.
Background technique
Expansion anchor is applied to all trades and professions with its superior connectivity; expansion anchor on the existing market mostly is single head and expands; there is the little shortcoming of area of contact with link in it; (being almost the line contact); and cause connection insecure; loosening phenomenon takes place easily, and the crab-bolt that expands of this single head is not suitable for being installed in the thicker link of thickness, the longer and narrower attachment hole in the working environment that often rocks.
Summary of the invention
At the problem that prior art exists, the object of the present invention is to provide a kind of simple in structure, full-expansion anchor bolt that connectivity is more firm, applied widely.
For achieving the above object, full-expansion anchor bolt of the present invention, comprise screw rod, from left to right be disposed with nut on the screw rod, the pushing tow sleeve pipe, combination expand tube and awl are female, nut, awl female with screw rod by being threaded, the pushing tow sleeve pipe, the combination expand tube is sleeved on the screw rod, wherein making up expand tube is made up of two intumescent sheets at least, each intumescent sheet splices and combines into tubular structure mutually by being arranged on the flexible collar on its outer wall, the pushing tow sleeve pipe, the female end that joins with the combination expand tube of awl is the conical surface, and along with the pushing tow sleeve pipe is close mutually with the awl parent phase, the two conical surface inserts from combination expand tube two ends respectively, and will make up radially distending of expand tube.
Full-expansion anchor bolt, comprise screw rod, from left to right be disposed with nut on the screw rod, the pushing tow sleeve pipe, at least two combination expand tubes, awl is female, be provided with intermediate casing between two wherein adjacent combination expand tubes, the two ends of this intermediate casing are the conical surface, nut, awl female with screw rod by being threaded, the pushing tow sleeve pipe, the combination expand tube is sleeved on the screw rod, wherein making up expand tube is made up of two intumescent sheets at least, each intumescent sheet splices and combines into tubular structure mutually by being arranged on the flexible collar on its outer wall, the pushing tow sleeve pipe, the female end that joins with the combination expand tube of awl is the conical surface, and along with the pushing tow sleeve pipe is close mutually with the awl parent phase, the pushing tow sleeve pipe, the female conical surface of intermediate casing and awl will insert from the combination expand tube two ends that join with it respectively, and each is made up radially distending of expand tube.
Further, described intermediate casing comprises the conical surface at two ends and the cylndrical surface at middle part, and the cylndrical surface is provided with anti-skidding reticulate pattern.
Further, also be provided with pad between described nut and the described pushing tow sleeve pipe, the outer surface of described pushing tow sleeve pipe is provided with anti-skidding reticulate pattern.
Further, described nut and described pad are made into integration, and perhaps described pad and described pushing tow sleeve pipe are made into integration.
Further, described combination expand tube upper edge axially spaced-apart is provided with two described flexible collar annular grooves is installed.
Further, be provided with antiskid groove and fin or anti-skidding reticulate pattern on each intumescent sheet outer surface of described combination expand tube; Combination handing-over line between adjacent two intumescent sheets of combination expand tube is curve or broken line, by its curve or broken line handing-over line adjacent two intumescent sheets is axially interfixed.
Further, described awl mother comprises conical section and cylindrical section, and wherein, the cylindrical section outer surface is provided with anti-skidding reticulate pattern.
Further, the upper tip of described screw rod is provided with protective cap.
Further, the surface of each part of described full-expansion anchor bolt is all zinc-plated.
By making up expand tube as expander, after being exerted pressure in its two ends, the intumescent sheet on it will be expanded to the periphery among the present invention, thus can be effectively be connected hole wall and fix.Because intumescent sheet is that face contacts with being connected between the hole wall, has improved the soundness of connection, and have necessarily, made things convenient for the installation between the link heart effect.
Description of drawings
Fig. 1 is embodiment's 1 structural representation;
Fig. 2 is the sectional view of Fig. 1;
Fig. 3 is the structural representation that nut and pad are made into integration;
Fig. 4 is the structural representation that pad and pushing tow sleeve pipe are made into integration;
Fig. 5 is embodiment's 1 perspective view;
Fig. 6 is embodiment's 1 assembly structure schematic representation;
Fig. 7 is embodiment's 2 structural representations.
Embodiment
To shown in Figure 6, full-expansion anchor bolt of the present invention comprises screw rod 2 as Fig. 1, from left to right is disposed with protective cap 1, nut 3, pad 4, pushing tow sleeve pipe 5, combination expand tube 6 and awl female 8 on screw rod 2.Nut 3, awl female 8 and screw rod 2 be by being threaded, and pushing tow sleeve pipe 5, makes up expand tube 6 and be sleeved on the screw rod 2.Protective cap 1 is arranged on the outer end of screw rod 2, play protection screw rod 2 exposed worm structures externally in back are installed, and the outside aesthetic property in back is installed in increase.Pad 4 is installed between nut 3 and the pushing tow sleeve pipe 5, plays the effect of protection pushing tow sleeve pipe 5, and can increase the impacting force effect to pushing tow sleeve pipe 5 in nut 3 rundown process.As shown in Figure 3, Figure 4, in the practical application, nut 3 and pad 4 can be made into integration, perhaps pad 4 and pushing tow sleeve pipe 5 be made into integration.
Combination expand tube 6 is made up of two intumescent sheets 61 at least, can with the diameter that makes up expand tube 6 multi-disc intumescent sheet 61 be set according to the actual requirements in actual applications, and for the full-expansion anchor bolt of general everyday use, intumescent sheet 61 is set between 2 to 6.Combination expand tube 6 is provided with two annular mounting groove 15, flexible collar 7 is installed in the mounting groove 15, under the inside contraction elasticity effect of flexible collar 7, make each intumescent sheet 61 splice and combine into tubular structure mutually, to form the combination expand tube 6 that can expand outwardly under external force according to its boundary line.
Pushing tow sleeve pipe 5 is a hollow tubular structure, and this hollow tube is combined by cone structure 52 and cylindrical surface structure 51, and is arranged at intervals with anti-skidding reticulate pattern 12 on the surface of cylindrical surface structure 51.Awl female 8 is a hollow tubular structure, and awl female 8 comprises conical section 81 and cylindrical section 82, and cylindrical section 82 is provided with anti-skidding reticulate pattern 14.
Pushing tow sleeve pipe 5, awl female 8 are held the small-caliber end of equal cone structure 52, conical section 81 with joining of combination expand tube 6, and the external diameter of the small-caliber end of cone structure 52, conical section 81 is not more than the internal diameter of combination expand tube 6, in the practical application, the external diameter of the small-caliber end of cone structure 52, conical section 81 should be slightly less than the internal diameter of combination expand tube 6, to be convenient to pushing tow sleeve pipe 5, to bore the inside that female 8 plug-in mountings go into to make up expand tube 6.Along with pushing tow sleeve pipe 5 is close mutually with awl female 8, the two conical surface inserts from combination expand tube 6 two ends respectively, and will make up radially distending of expand tube 6 during use.
After being expanded, combination expand tube 6 can effectively fixedly connected with the inwall of mounting hole, on each intumescent sheet 61, be provided with antiskid groove 9 and fin 10, anti-skidding reticulate pattern perhaps is set on intumescent sheet 61, antiskid groove 9 and fin 10 all can be nipped among the inwall of mounting hole, with the area of contact between raising full-expansion anchor bolt installation of the present invention back and the mounting hole, and can prevent the loosening phenomenon of the connection that causes owing to rocking of link.Combination handing-over line 11 between each intumescent sheet 61 is curve, broken line, by its curve or broken line handing-over line adjacent two intumescent sheets is axially interfixed.For the convenience of processing and installing, in the present embodiment boundary line 11 is set to broken line.
For working life and the corrosion resistance that improves full-expansion anchor bolt of the present invention, protective cap 1, screw rod 2, nut 3, pad 4, pushing tow sleeve pipe 5, combination expand tube 6 and awl mother 8 wait the surface of each part all zinc-plated among the present invention.
During use, now nut 3, pad 4, pushing tow sleeve pipe 5, combination expand tube 6 and awl female 8 are installed on the screw rod 2 successively, in the mounting hole between the insertion of the crab-bolt after the assembling link, behind the location, fastening nut 3, shortening along with distance between nut 3 and the awl female 8, cone structure 52 and conical section 81 will compress the two ends of combination expand tube 6 gradually, because the effect of cone structure, the pressure of each intumescent sheet 61 impedance spring 7 under the effect of ambient pressure, and outwards dilate, make the tight interlock of inwall of each intumescent sheet 61 and mounting hole to have arrived the effect of firm connection.After the installation, suit protective cap 1 on the screw thread that screw rod 2 exposes.
Because each intumescent sheet 61 is to assemble under the elastic force effect of spring 7 among the present invention, therefore, behind the ambient pressure of laying down combination expand tube 6 two ends, each intumescent sheet 61 is under the inside contraction elasticity effect of flexible collar 7, to return to original assembled state, thereby make and easily full-expansion anchor bolt of the present invention to be taken out from mounting hole.Therefore, full-expansion anchor bolt of the present invention has detachability and nonexpondable advantage, has made things convenient for use, has enlarged using scope, solved existing single head expansion anchor and after once using, promptly produced expendable distortion, not only can't dismantle but also can not nonexpondable defective.
As shown in Figure 7, for the very thick link of two thickness of connection, very long and narrow attachment hole, the i.e. connection of long distance connects a link, this moment soundness in order to connect, combination expand tube 6 need be provided with long enough, 6 processing of long combination expand tube, assembling difficulty, and at it during to distending radially, occur the intermediate portion easily and concave and be out of shape, tail off, connect unstable phenomenon thereby area of contact occurs connecting.And for the attachment hole of different length, must prepare the combination expand tube 6 of different length, this brings very big trouble for manufacture process, is unfavorable for producing in batches.
In order to satisfy the installation requirements of long distance, full-expansion anchor bolt of the present invention also can be designed to have the package assembly of a plurality of combination expand tubes, full-expansion anchor bolt comprises screw rod 2 in the present embodiment, from left to right be disposed with nut 3, pushing tow sleeve pipe 5, at least two combination expand tubes 6, awl female 8 on the screw rod 2, be provided with intermediate casing 16 between two wherein adjacent combination expand tubes 6, be provided with 3 combination expand tubes 6 and 2 intermediate casings 16 in the present embodiment.The two ends of intermediate casing 16 are the conical surface, between this two conical surface, be provided with cylindrical section, the surface of this cylindrical section is provided with anti-skidding reticulate pattern, nut 3, awl female 8 and screw rod 2 are by being threaded, pushing tow sleeve pipe 5, combination expand tube 6 are sleeved on the screw rod 2, wherein make up expand tube 6 and be made up of two intumescent sheets 61 at least, each intumescent sheet 61 splices and combines into tubular structure mutually by being arranged on the flexible collar 7 on its outer wall, and pushing tow sleeve pipe 5, awl female 8 are the conical surface with the end that joins of combination expand tube 6.During actual the use, can increase or reduce the number of combination expand tube 6 and intermediate casing 16 according to the length of attachment hole, because the length of combination expand tube 6 is in certain scope, like this, along with pushing tow sleeve pipe 5 is close mutually with awl female 8, the conical surface of pushing tow sleeve pipe 5, intermediate casing 16 and awl female 8 will insert from combination expand tube 6 two ends that join with it respectively, thereby with the equal distending radially of each combination expand tube, thereby increased combination expand tube and the area of contact that is connected hole wall, improved the soundness that connects.
Claims (10)
1. full-expansion anchor bolt, it is characterized in that, this crab-bolt comprises screw rod, from left to right be disposed with nut on the screw rod, the pushing tow sleeve pipe, combination expand tube and awl are female, nut, awl female with screw rod by being threaded, the pushing tow sleeve pipe, the combination expand tube is sleeved on the screw rod, wherein making up expand tube is made up of two intumescent sheets at least, each intumescent sheet splices and combines into tubular structure mutually by being arranged on the flexible collar on its outer wall, the pushing tow sleeve pipe, the female end that joins with the combination expand tube of awl is the conical surface, and along with the pushing tow sleeve pipe is close mutually with the awl parent phase, the two conical surface inserts from combination expand tube two ends respectively, and will make up radially distending of expand tube.
2. full-expansion anchor bolt, it is characterized in that, this crab-bolt comprises screw rod, from left to right be disposed with nut on the screw rod, the pushing tow sleeve pipe, at least two combination expand tubes, awl is female, be provided with intermediate casing between two wherein adjacent combination expand tubes, the two ends of this intermediate casing are the conical surface, nut, awl female with screw rod by being threaded, the pushing tow sleeve pipe, the combination expand tube is sleeved on the screw rod, wherein making up expand tube is made up of two intumescent sheets at least, each intumescent sheet splices and combines into tubular structure mutually by being arranged on the flexible collar on its outer wall, the pushing tow sleeve pipe, the female end that joins with the combination expand tube of awl is the conical surface, and along with the pushing tow sleeve pipe is close mutually with the awl parent phase, the pushing tow sleeve pipe, the female conical surface of intermediate casing and awl will insert from the combination expand tube two ends that join with it respectively, and each is made up radially distending of expand tube.
3. full-expansion anchor bolt as claimed in claim 2 is characterized in that, described intermediate casing comprises the conical surface at two ends and the cylndrical surface at middle part, and the cylndrical surface is provided with anti-skidding reticulate pattern.
4. full-expansion anchor bolt as claimed in claim 1 or 2 is characterized in that, also is provided with pad between described nut and the described pushing tow sleeve pipe, and the outer surface of described pushing tow sleeve pipe is provided with anti-skidding reticulate pattern.
5. full-expansion anchor bolt as claimed in claim 4 is characterized in that, described nut and described pad are made into integration, and perhaps described pad and described pushing tow sleeve pipe are made into integration.
6. full-expansion anchor bolt as claimed in claim 1 or 2 is characterized in that, described combination expand tube upper edge axially spaced-apart is provided with two described flexible collar annular groove is installed.
7. full-expansion anchor bolt as claimed in claim 1 or 2 is characterized in that, is provided with antiskid groove and fin or anti-skidding reticulate pattern on each intumescent sheet outer surface of described combination expand tube; Combination handing-over line between adjacent two intumescent sheets of combination expand tube is curve or broken line, by its curve or broken line handing-over line adjacent two intumescent sheets is axially interfixed.
8. full-expansion anchor bolt as claimed in claim 1 or 2 is characterized in that, described awl mother comprises conical section and cylindrical section, and wherein, the cylindrical section outer surface is provided with anti-skidding reticulate pattern.
9. full-expansion anchor bolt as claimed in claim 1 or 2 is characterized in that the upper tip of described screw rod is provided with protective cap.
10. full-expansion anchor bolt as claimed in claim 1 or 2 is characterized in that the surface of each part of described full-expansion anchor bolt is all zinc-plated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910235598A CN101694227A (en) | 2009-09-29 | 2009-09-29 | Full-expansion anchor bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910235598A CN101694227A (en) | 2009-09-29 | 2009-09-29 | Full-expansion anchor bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101694227A true CN101694227A (en) | 2010-04-14 |
Family
ID=42093215
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910235598A Pending CN101694227A (en) | 2009-09-29 | 2009-09-29 | Full-expansion anchor bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101694227A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016019911A1 (en) * | 2014-08-08 | 2016-02-11 | 杨东佐 | Expansion and fastening connection structure and connection method, and expansion and fastening connection assembly |
| CN107036497A (en) * | 2017-06-01 | 2017-08-11 | 常州宇航机器人有限公司 | A kind of sealing of all steel gas blast is anti-to fly pipe |
| CN107044804A (en) * | 2017-06-01 | 2017-08-15 | 常州宇航机器人有限公司 | A kind of sealing of gas blast is anti-to fly pipe |
| CN107462113A (en) * | 2017-06-01 | 2017-12-12 | 常州宇航机器人有限公司 | A kind of sealing of new gas explosion and anti-winged pipe |
| CN110145520A (en) * | 2019-06-19 | 2019-08-20 | 广州花都区乐思富科技有限公司 | A kind of expansion connector |
| CN110219865A (en) * | 2019-06-10 | 2019-09-10 | 法施达科技有限公司 | A kind of anchor bolt with Failure Alarm |
| US20210355977A1 (en) * | 2018-07-27 | 2021-11-18 | Robert Bosch Gmbh | Anchoring Device |
-
2009
- 2009-09-29 CN CN200910235598A patent/CN101694227A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016019911A1 (en) * | 2014-08-08 | 2016-02-11 | 杨东佐 | Expansion and fastening connection structure and connection method, and expansion and fastening connection assembly |
| CN107036497A (en) * | 2017-06-01 | 2017-08-11 | 常州宇航机器人有限公司 | A kind of sealing of all steel gas blast is anti-to fly pipe |
| CN107044804A (en) * | 2017-06-01 | 2017-08-15 | 常州宇航机器人有限公司 | A kind of sealing of gas blast is anti-to fly pipe |
| CN107462113A (en) * | 2017-06-01 | 2017-12-12 | 常州宇航机器人有限公司 | A kind of sealing of new gas explosion and anti-winged pipe |
| US20210355977A1 (en) * | 2018-07-27 | 2021-11-18 | Robert Bosch Gmbh | Anchoring Device |
| CN110219865A (en) * | 2019-06-10 | 2019-09-10 | 法施达科技有限公司 | A kind of anchor bolt with Failure Alarm |
| CN110145520A (en) * | 2019-06-19 | 2019-08-20 | 广州花都区乐思富科技有限公司 | A kind of expansion connector |
| CN110145520B (en) * | 2019-06-19 | 2024-04-02 | 广州花都区乐思富科技有限公司 | Expansion connecting piece |
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Application publication date: 20100414 |