CN108843667B - Novel expansion anchor bolt - Google Patents
Novel expansion anchor bolt Download PDFInfo
- Publication number
- CN108843667B CN108843667B CN201810742824.4A CN201810742824A CN108843667B CN 108843667 B CN108843667 B CN 108843667B CN 201810742824 A CN201810742824 A CN 201810742824A CN 108843667 B CN108843667 B CN 108843667B
- Authority
- CN
- China
- Prior art keywords
- expansion
- anchor
- expansion body
- sleeve
- anchor bolt
- 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.)
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Links
- 238000009434 installation Methods 0.000 claims abstract description 8
- 230000000694 effects Effects 0.000 abstract description 5
- 238000004873 anchoring Methods 0.000 abstract description 4
- 230000001050 lubricating effect Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Images
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
- F16B13/06—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 combined with expanding sleeve
- F16B13/063—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 combined with expanding sleeve by the use of an expander
Abstract
The invention provides a novel expansion anchor bolt, and belongs to the technical field of anchor bolt fixing. The invention relates to a novel expansion anchor bolt which is used for fastening and installing a base surface and comprises an anchor rod and a sleeve which can be sleeved on the outer surface of the anchor rod in a reciprocating motion manner along the extension direction of the anchor rod, wherein the anchor rod is provided with an accommodating cavity, an expansion body and a tilting piece which is used for enabling the non-hinged end of the expansion piece to at least partially protrude out of the accommodating cavity by abutting against the expansion piece are hinged in the accommodating cavity; the non-hinged end of the expansion piece is provided with a guide surface, and one end of the sleeve is abutted to the guide surface until the expansion body is expanded in a mode that the non-hinged end of the expansion body is rotated to be in contact with the installation base surface. The sleeve tightly abuts against the guide surface, so that the expansion body is expanded, and the expansion and fixation effects are achieved. The invention has simple structure, can realize anchoring only by rotating or knocking the sleeve, saves labor and controls the expansion degree of the expansion body by controlling the pushing length of the sleeve.
Description
Technical Field
The invention relates to the technical field of anchor bolt fixing, in particular to a novel expansion anchor bolt.
Background
Expansion anchor bolt, expansion bolt for short. The expansion piece is promoted to expand by utilizing the relative movement of the cone body and the expansion piece (or the expansion sleeve), the expansion extrusion force is generated with the hole wall concrete, the pulling resistance force is generated through the shearing friction effect, and the anchoring of the connected piece is realized.
When the device is used, holes with corresponding sizes are drilled on the fixed body by using an impact electric drill (hammer), then the bolt and the expansion pipe are arranged in the holes, and the bolt, the expansion pipe, the mounting piece and the fixed body can be expanded into a whole by screwing the nut. The bolt can expand after being screwed, the tail part of the bolt is provided with a big head, a round pipe with a diameter slightly larger than that of the bolt is sleeved on the outer surface of the bolt, the tail part is provided with a plurality of openings, after the bolt is screwed, the tail part of the big head is taken into the pipe with the openings, the pipe is enlarged, the purpose of expansion is achieved, and the bolt is further fixed on the ground or the wall.
The patent application No. CN02808023.8 discloses a method for producing an expansion anchor, which relates to a method for producing an expansion anchor having at its front end a cone with a lubricating layer for expanding a slotted expansion sleeve; at the rear end of the expansion anchor, a thread is provided for fastening an object to a component. In order to improve the adhesion of the lubricating layer on the cone and to avoid damage to the lubricating layer when expanding, the surface of the cone is machined with a steel brush before the lubricating layer is applied in the following way: a grooved structure is formed. The cone propels the expanded casing under force, causing the expanded casing to expand in volume. In general, from the target torque achieved on the nut, it can be concluded that: the target expansion is achieved on the expanded casing.
The anchor bolt in the prior art pushes the expansion body into the sleeve with great force in the using process, the installation is laborious, whether the expansion anchor bolt main body reaches the maximum expansion degree or not can not be known after the installation, the installation is not convenient, and the structure of the expansion part is complex.
Disclosure of Invention
The invention provides a novel expansion anchor bolt, aiming at solving the technical defects that the expansion anchor bolt in the prior art is difficult to install and use, wherein a fastening installation base surface comprises an anchor bolt and a sleeve which can be sleeved on the outer surface of the anchor bolt in a reciprocating motion manner along the extension direction of the anchor bolt, the anchor bolt is provided with an accommodating cavity, an expansion body and a tilting piece which is used for enabling the non-hinged end of the expansion body to at least partially protrude out of the accommodating cavity by abutting against the expansion body are hinged in the accommodating cavity; the non-hinged end of the expansion body is provided with a guide surface, and one end of the sleeve is abutted to the guide surface until the expansion body is expanded in a mode that the non-hinged end of the expansion body rotates to be in contact with the installation base surface.
Preferably, the tilting member includes a plurality of curved bars arranged in a ring shape and connected at one end.
Preferably, the curved bar is L-shaped.
Preferably, one end of the anchor rod far away from the accommodating cavity is provided with a locking nut, and the locking nut is used for stopping the sleeve when the expansion body expands so as to maintain the expanded state of the expansion body.
Preferably, a first accommodating groove for accommodating the tilting piece is formed in the bottom wall of the accommodating cavity.
Preferably, two end wall surfaces of the accommodating cavity in the extending direction of the anchor rod are curved surfaces.
Preferably, the guide surface is 30-60 degrees with respect to the anchor rod extension line.
Preferably, a second accommodating groove is formed in an inner surface of the expansion body abutting against the tilting piece.
Preferably, the number of the expansion bodies is at least 2.
The sleeve tightly abuts against the guide surface, so that the expansion body is expanded, and the expansion and fixation effects are achieved. The invention has simple structure, can realize anchoring only by rotating or knocking the sleeve, saves labor and controls the expansion degree of the expansion body by controlling the pushing length of the sleeve.
Drawings
FIG. 1 is a schematic illustration of the construction of a novel expansion anchor according to an embodiment of the invention;
FIG. 2 is a partial structural view of a novel expansion anchor according to an embodiment of the present invention;
FIG. 3 is a schematic structural view of a rising piece of the novel expansion anchor according to an embodiment of the present invention;
wherein: 1-anchor rod; 11-a containment chamber; 111-a first receiving groove; 2-a sleeve; 3-an expansion body; 31-a guide surface; 32-a second accommodating groove; 4-a tilting member; 41-curved bar; and 5, locking the nut.
Detailed Description
The present invention will be described in detail with reference to the following embodiments.
Referring to fig. 1, 2 and 3, the novel expansion anchor bolt of the present invention is used for fastening and installing a base surface, and includes an anchor rod 1 and a sleeve 2 sleeved on an outer surface of the anchor rod 1 in a reciprocating manner along an extending direction of the anchor rod 1, wherein the anchor rod 1 is provided with an accommodating cavity 11, an expansion body 3 and a tilting member 4 for making a non-hinged end of the expansion body 3 at least partially protrude out of the accommodating cavity 11 by abutting against the expansion body 3 are hinged in the accommodating cavity 11; the non-hinged end of the expansion body 3 is provided with a guide surface 31, and the guide surface 31 is used for enabling one end of the sleeve 2 to be abutted until the expansion body 3 is expanded in a mode that the non-hinged end of the expansion body is rotated to be in contact with the installation base surface.
The tilting member 4 includes a plurality of curved bars 41 arranged in a ring shape and connected at one end, and the curved bars 41 may be L-shaped. Such as the structure shown in fig. 3. The bottom wall of the accommodating cavity 11 is provided with a first accommodating groove 111 for accommodating the tilting member 4. Two end wall surfaces of the accommodating cavity 11 in the extending direction of the anchor rod 1 are curved surfaces. The expansion body 3 is abutted to one inner surface of the tilting piece 4, a second accommodating groove 32 is formed in the inner surface of the tilting piece 4, the first accommodating groove 111 and the second accommodating groove 32 wrap the part of the vertical part of the curved rod 41, and the sum of the depths of the first accommodating groove 111 and the second accommodating groove 32 is smaller than the diameter of the curved rod 41, so that the expansion body 3 can tilt at a certain angle under the abutting action of the curved rod 41.
In addition, the end of the anchor rod 1 far away from the accommodating cavity 11 is provided with a locking nut 5, and the locking nut 5 is used for stopping the sleeve 2 when the expansion body 3 expands so as to maintain the expanded state of the expansion body 3.
The guide surface 31 is at an angle of 35 ° to the line of extension of the anchor rod 1, which angle facilitates the sleeve 2 pushing apart the expansion body 3.
The sleeve 2 tightly abuts against the guide surface 31, so that the expansion body 3 is expanded to play a role in expansion and fixation. The invention has simple structure, can realize anchoring only by rotating or knocking the sleeve 2, saves labor and controls the expansion degree of the expansion body 3 by controlling the pushing length of the sleeve 2. The design of the guide surface 31 and the tilting element 4 makes the process of expanding the expansion body 3 by pushing the sleeve 2 more labor-saving.
The present invention is not limited to the above-described specific embodiments, and various modifications and variations are possible. Any modifications, equivalents, improvements and the like made to the above embodiments in accordance with the technical spirit of the present invention should be included in the scope of the present invention.
Claims (9)
1. A novel expansion anchor bolt is used for fastening and installing a base surface and is characterized by comprising an anchor bolt and a sleeve which is sleeved on the outer surface of the anchor bolt in a reciprocating motion mode along the extension direction of the anchor bolt, wherein the anchor bolt is provided with an accommodating cavity, an expansion body and a tilting piece which is used for enabling the non-hinged end of the expansion body to at least partially protrude out of the accommodating cavity by abutting against the expansion body are hinged in the accommodating cavity; the non-hinged end of the expansion body is provided with a guide surface, and one end of the sleeve is abutted to the guide surface until the expansion body is expanded in a mode that the non-hinged end of the expansion body rotates to be in contact with the installation base surface.
2. Expansion anchor according to claim 1, in which the tilting element comprises a plurality of curved bars arranged in a ring and connected at one end.
3. Expansion anchor according to claim 2, in which the curved bar is L-shaped.
4. Expansion anchor according to claim 1, in which the anchor shank is provided at its end remote from the receiving space with a locking nut for stopping the sleeve when the expansion body expands in order to maintain the expanded state of the expansion body.
5. The expansion anchor as claimed in claim 1, wherein the bottom wall of the receiving space is provided with a first receiving groove for receiving the tilting element.
6. Expansion anchor according to claim 5, in which the receiving space is curved at its two end walls in the direction of extension of the anchor rod.
7. Expansion anchor according to claim 1, in which the guide surface is arranged at 30 to 60 ° to the anchor rod extension line.
8. The expansion anchor according to claim 1, wherein an inner surface of the expansion body abutting against the raised member defines a second receiving groove.
9. Expansion anchor according to claim 1, characterized in that the expansion body is at least 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810742824.4A CN108843667B (en) | 2018-07-09 | 2018-07-09 | Novel expansion anchor bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810742824.4A CN108843667B (en) | 2018-07-09 | 2018-07-09 | Novel expansion anchor bolt |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108843667A CN108843667A (en) | 2018-11-20 |
| CN108843667B true CN108843667B (en) | 2020-05-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810742824.4A Active CN108843667B (en) | 2018-07-09 | 2018-07-09 | Novel expansion anchor bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108843667B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109723706B (en) * | 2019-03-04 | 2020-12-15 | 平湖市飞天人图文设计有限公司 | Self-locking screw suitable for blind hole implantation |
| CN110387891B (en) * | 2019-07-22 | 2021-04-13 | 武汉立诚岩土工程有限公司 | Drain pipe for slope restoration and reinforcement project |
| CN110594260A (en) * | 2019-10-15 | 2019-12-20 | 杨稀 | Concave-convex expansion bolt |
| CN111207139A (en) * | 2020-04-01 | 2020-05-29 | 马娜 | Retaining high-expansion bolt |
| CN112921981B (en) * | 2021-01-29 | 2022-05-03 | 中建协和建设有限公司 | Construction method of anchoring structure and soil nailing wall supporting structure |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB485087A (en) * | 1936-10-13 | 1938-05-13 | James Bonham | An emergency screw-threaded bolt |
| WO1996027743A1 (en) * | 1995-03-07 | 1996-09-12 | Pectom Pty. Ltd. | Fixing device |
| GB2441018A (en) * | 2006-04-25 | 2008-02-20 | Romtech Ltd | Rock bolt and method of use |
| CN102359463A (en) * | 2011-08-02 | 2012-02-22 | 裴志胜 | Shear expansion bolt |
| CN102758818A (en) * | 2011-08-02 | 2012-10-31 | 裴春光 | Shear type expansion bolt |
| CN203655328U (en) * | 2013-02-19 | 2014-06-18 | 裴春光 | Shear type expansion anchor bolt |
| CN206754089U (en) * | 2017-04-17 | 2017-12-15 | 四川建筑职业技术学院 | It is a kind of to expand formula expansion bolt certainly |
| CN108194473A (en) * | 2017-12-29 | 2018-06-22 | 徐森良 | Reusable four-jaw type swell fixture |
| CN207554498U (en) * | 2017-09-11 | 2018-06-29 | 佛山市南海区西樵健敏五金厂 | Setscrew sub-assembly |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9291188B2 (en) * | 2014-02-05 | 2016-03-22 | Douglas A. English | Mounting fixture and method for using same |
-
2018
- 2018-07-09 CN CN201810742824.4A patent/CN108843667B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB485087A (en) * | 1936-10-13 | 1938-05-13 | James Bonham | An emergency screw-threaded bolt |
| US2132284A (en) * | 1936-10-13 | 1938-10-04 | Thomas Macdonald | Emergency screw-threaded bolt |
| WO1996027743A1 (en) * | 1995-03-07 | 1996-09-12 | Pectom Pty. Ltd. | Fixing device |
| GB2441018A (en) * | 2006-04-25 | 2008-02-20 | Romtech Ltd | Rock bolt and method of use |
| CN102359463A (en) * | 2011-08-02 | 2012-02-22 | 裴志胜 | Shear expansion bolt |
| CN102758818A (en) * | 2011-08-02 | 2012-10-31 | 裴春光 | Shear type expansion bolt |
| CN203655328U (en) * | 2013-02-19 | 2014-06-18 | 裴春光 | Shear type expansion anchor bolt |
| CN206754089U (en) * | 2017-04-17 | 2017-12-15 | 四川建筑职业技术学院 | It is a kind of to expand formula expansion bolt certainly |
| CN207554498U (en) * | 2017-09-11 | 2018-06-29 | 佛山市南海区西樵健敏五金厂 | Setscrew sub-assembly |
| CN108194473A (en) * | 2017-12-29 | 2018-06-22 | 徐森良 | Reusable four-jaw type swell fixture |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108843667A (en) | 2018-11-20 |
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