CN101235658A - Expansion anchor bolt - Google Patents
Expansion anchor bolt Download PDFInfo
- Publication number
- CN101235658A CN101235658A CNA2007100085141A CN200710008514A CN101235658A CN 101235658 A CN101235658 A CN 101235658A CN A2007100085141 A CNA2007100085141 A CN A2007100085141A CN 200710008514 A CN200710008514 A CN 200710008514A CN 101235658 A CN101235658 A CN 101235658A
- Authority
- CN
- China
- Prior art keywords
- expansion
- crab
- bulge
- bolt bar
- clamping element
- 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
Images
Landscapes
- Joining Of Building Structures In Genera (AREA)
Abstract
An expansion anchor comprises an anchor bolt rod, and further comprises at least one expansion sleeve whose two ends are provided with expansion portions, and are arranged on the anchor bolt rod, and at least one fixed sleeve. The expansion portions are formed by cutting several joint-cuttings in the axial direction on the end portion of the expansion sleeve, an extrusion portion which is used to support the expansion portion is formed on the end portion of the fixed sleeve, the fixed sleeve in the inner end portion of the anchor bolt rod is matched with the anchor bolt rod through threads, and a clamping element which is used to clamp all expansion sleeves and the fixed sleeve between the anchor bolt rod and the fixed sleeve is arranged on the external end portion of the anchor bolt rod with the fixed sleeve in the internal end portion. The expansion anchor has the advantages that the contact area of effect contact force between the expansion anchor bolt and building is largely increased through several the expansion portion structures, the fixture effect is excellent, projection portion can not left on the surface of the building when the expansion anchor bolt is not used, thereby no affecting the beauty of the surface of the building.
Description
Technical field
The present invention relates to the building fastener areas, specifically be meant a kind of expansion anchor.
Background technology
In building structure, expansion anchor is because of the reliability and the installation flexibility of its anchoring, be widely used in many aspects, just progressively replace built-in fitting, fix at shelf, use in a large number in the engineerings such as equipment installation, curtain wall installation, plug-in stone material, the anchoring of external wall outer insulation material, door and window installation, road guard, support of pipelines, architectural decoration and renovation of building, reinforcing, become a kind of product that has development prospect.
At present, general practical expansion anchor generally includes screw rod, and an end of screw rod forms foundation, is arranged with nut, pad, open circles steel pipe socket on screw rod, is provided with expansion piece at an end of open circles steel pipe socket.In use, screw nut, expansion piece expands, thus set bolt.This expansion anchor is owing to have only an end expansion piece, and the contact area that forms effective contact force with building is quite limited, causes construction cracking easily, does not reach satisfied fastening effect; In addition,, when not using expansion anchor, screw rod can't be screwed out, stay the outside of one section protuberance, influence very much attractive in appearance in building boring because foundation and screw rod are connected as a single entity.
Another multisection type expansion anchor, comprise screw rod, a plurality of expansion piece, the expansion piece two ends are equipped with bulge, form the expansion piece that on same circumference, does not interlock on the bulge, during use, the staggered butt joint of the expansion piece of two adjacent expansion pieces, reach the effect of expansion, this expansion anchor adopts the mutual active force of expansion piece to reach expansion effect, but because the tension force of expansion piece is not enough, can't reach fastening preferably effect.
Summary of the invention
The invention provides a kind of expansion anchor, its main purpose is to overcome the existing fastening poor effect of expansion anchor, influence shortcoming attractive in appearance.
The present invention adopts following technical scheme:
Technical scheme one:
A kind of expansion anchor comprises a crab-bolt bar, comprises that also at least one two ends that is sheathed on this crab-bolt bar all form expansion sleeve and at least one fixed sleeving of bulge; Described bulge is established several joint-cuttings and is formed in axially cuing open by the end of expansion sleeve; Described fixed sleeving end is formed for strutting the press section of described bulge; The fixed sleeving and the crab-bolt bar of crab-bolt bar inner end pass through threaded engagement; The outer end of this crab-bolt bar is provided with one and the clamping element that jointly all expansion sleeves between the two, fixed sleeving clamped of the fixed sleeving of described inner end.
Aforementioned a kind of expansion anchor, its bulge inside wall forms groove in each joint-cutting place, and the press section of described fixed sleeving forms and the suitable protuberance of this groove.
Aforementioned a kind of expansion anchor, its clamping element are a nut, pass through threaded engagement between this nut and the crab-bolt bar.
Aforementioned a kind of expansion anchor, its clamping element are integrally formed at this crab-bolt bar outer end, are cylindric, and its diameter is greater than the diameter of crab-bolt bar, and its inner end is formed for strutting the press section of described bulge; And be provided with a screwed hole in the outer end of this clamping element, the outer end of this screwed hole forms one and cooperates to rotate the pilot hole of this crab-bolt bar with external tool, is combined with one in this screwed hole and takes the lead screw rod.
Aforementioned a kind of expansion anchor, its clamping element and this crab-bolt bar are connected as a single entity, and its profile is a multi-edge column-shaped.
Technical scheme two:
A kind of expansion anchor comprises a crab-bolt bar, also comprises at least two expansion sleeves that are sheathed on this crab-bolt bar, the press section that the end formation bulge of this expansion sleeve, the other end form the bulge that struts adjacent expansion sleeve; Bulge is cutd open vertically by the end of expansion sleeve and establishes several joint-cuttings and form; Crab-bolt bar inner end has clamping element in by threaded engagement, the outer end of this crab-bolt bar be provided with one with described in clamping element jointly with the outer clamping element of all expansion sleeves clampings between the two.
Aforementioned a kind of expansion anchor has a press section that is formed for strutting described bulge in its outer clamping element or the interior clamping element.
Technical scheme three:
A kind of expansion anchor, comprise a crab-bolt bar, comprise that also at least one two ends that is sheathed on this crab-bolt bar all form the expansion sleeve of bulge and the expansion sleeve that at least one end forms bulge, this bulge is cutd open vertically by the end of expansion sleeve and establishes several joint-cuttings and form; The other end that a described end forms the expansion sleeve of bulge forms the press section that described bulge is backed down; Crab-bolt bar inner end has clamping element in by threaded engagement, the outer end of this crab-bolt bar be provided with one with described in clamping element jointly with the outer clamping element of all expansion sleeves clampings between the two.
Aforementioned a kind of expansion anchor has a press section that is formed for strutting described bulge in its outer clamping element or the interior clamping element.
Aforementioned a kind of expansion anchor also is arranged with at least one fixed sleeving on its expansion anchor, the end that the bulge of this fixed sleeving and expansion anchor joins is located at and is used for press section that this expansion is strutted.
By above-mentioned description to structure of the present invention as can be known, compare with prior art, the present invention has following advantage:
One, structure by a plurality of bulges, the contact area that forms effective contact force between this expansion anchor and the building is increased greatly, the area of zone of swelling can reach more than 15 times of crab-bolt sectional area, the crab-bolt zone of swelling passes to load of buildings significantly to be reduced, and makes the probability of construction cracking reduce greatly, has guaranteed the safety of building, the useful load ability of crab-bolt is also given a full play of, thereby has fastening preferably effect;
Two, under expansion effectively and uniformly, produced multistage closely cooperating between the boring of many places expansion chain and building on the crab-bolt bar, no matter how the building material changes, or how complicated condition of construction is, so that in building boring, formed crackle and cavity, on the crab-bolt bar, can have closely cooperating of many places expansion chain and building boring, thereby obtain reliable fastening force;
Three, when not using expansion anchor, can not leave protuberance, thereby not influence the attractive in appearance of building surface at building surface.
Description of drawings
Perspective view when Fig. 1 disassembles state for the specific embodiment of the invention one;
Fig. 2 is the cross section structure schematic diagram of the specific embodiment of the invention one bulge;
View when Fig. 3 is the boring of the specific embodiment of the invention one expansion anchor insertion building;
Perspective view when Fig. 4 disassembles state for the specific embodiment of the invention two;
Perspective view when Fig. 5 disassembles state for the specific embodiment of the invention three;
Perspective view when Fig. 6 disassembles state for the specific embodiment of the invention four.
The specific embodiment
The specific embodiment of the present invention one, with reference to Fig. 1, a kind of expansion anchor, comprise a crab-bolt bar 1, on the direction of inserting building boring on this crab-bolt bar 1 along it, be arranged with nut 2, fixed sleeving 4, expansion sleeve 5, fixed sleeving 6, expansion sleeve 7, fixed sleeving 8 from outside to inside successively.
The outer peripheral face of an end that links to each other with nut 2 on the crab-bolt bar 1 forms the suitable external screw thread of internal thread with nut 2, and nut 2 is connected with crab-bolt bar 1 in the mode of threaded engagement.
The end that fixed sleeving 4, fixed sleeving 6, fixed sleeving 8 link to each other with each expansion sleeve all forms press section, the end that expansion sleeve 5, expansion sleeve 7 link to each other with the press section of each fixed sleeving all forms bulge, and this bulge is that the end at expansion sleeve axially cuts open several expansion pieces of establishing several joint-cuttings and forming; The inside wall of each bulge forms groove in each joint-cutting place, and each press section forms and the suitable protuberance of this groove.
With reference to Fig. 1, the press section 41 of fixed sleeving 4 one ends is connected with the bulge 51 of expansion sleeve 5, the bulge 52 of expansion sleeve 5 is connected with the press section 61 of fixed sleeving 6, the press section 62 of fixed sleeving 6 is connected with the bulge 71 of expansion sleeve 7, the bulge 72 of expansion sleeve 7 is connected with the press section 81 of fixed sleeving 8, contact at the bottom of the hole of the other end of fixed sleeving 8 and building boring, be that fixed sleeving 8 is positioned at the end of crab-bolt bar 1 at its insertion building boring direction, the inwall of this fixed sleeving 8 forms internal thread, the end of crab-bolt bar 1 forms and the suitable external screw thread of this internal thread, and fixed sleeving 8 is connected with the end of crab-bolt bar 1 in the mode of threaded engagement.
See figures.1.and.2 simultaneously, bulge 51 is that the end at expansion sleeve 5 axially cuts open several expansion pieces 511 of establishing several joint-cuttings 512 and forming, and other bulges also have identical structure; The inside wall of the bulge 51 of expansion sleeve 5 forms groove 513 in its joint-cutting 512 places, the press section 41 of fixed sleeving 4 forms the protuberance 411 suitable with this groove 513, and other bulges also have identical structure with press section.
In use, screw nut 2, press section 41, press section 61, press section 62, press section 81 are oppressed bulge 51, bulge 52, bulge 71, bulge 72 respectively and are outwards expanded, form a plurality of stress points between expansion anchor and the building boring, have bigger lifting surface area, thereby have fastening preferably effect.
With reference to Fig. 3, insert the effect schematic diagram of building boring 9 for expansion anchor 10.
When not using, owing to be provided with screw thread in the fixed sleeving 8, crab-bolt bar 1 can be screwed out, thereby can not leave jut on the surface of building, do not influence the attractive in appearance of building surface.
In addition, can also be at a sheathed pad on the crab-bolt bar 1, between nut 2 and the fixed sleeving 4.
The specific embodiment of the present invention two, with reference to Fig. 4, its basic principle is identical with the specific embodiment one with primary structure, the main distinction is: do not have nut, fixed sleeving 4 is formed at the outer end of crab-bolt bar 1, and is connected as a single entity with crab-bolt bar 1, and an end of this fixed sleeving 4 forms press section 41, the other end forms screwed hole 42, and this screwed hole 42 is combined with one and takes the lead screw rod 2.In use, turn is taken the lead screw rod 2 and can be pushed all expansion sleeves and fixed sleeving.When not using, only need to take the lead screw rod 2 to screw out, thereby can not leave jut on the surface of building, do not influence the attractive in appearance of building surface.
The specific embodiment of the present invention three, with reference to Fig. 5, a kind of expansion anchor comprises a crab-bolt bar 1, is socketed with expansion sleeve 3, expansion sleeve 4, fixed sleeving 5 on this crab-bolt bar 1 successively.
One end of expansion sleeve 3 forms bulge 31, and this bulge 31 is that a end axis at first expansion sleeve 3 is to cuing open several expansion pieces of establishing several joint-cuttings and forming.This bulge 31 is connected with the press section 41 of expansion sleeve 4 one ends, and the other end of expansion sleeve 4 forms bulge 42, and the structure of this bulge 42 is identical with bulge 31, and this bulge 42 is connected with the press section 51 of fixed sleeving 5 one ends.Contact at the bottom of the hole of the other end of fixed sleeving 5 and building boring, be that fixed sleeving 5 is positioned at the end of crab-bolt bar 1 at its insertion building boring direction, the inwall of this fixed sleeving 5 forms internal thread, the end of crab-bolt bar 1 forms and the suitable external screw thread of this internal thread, and fixed sleeving 5 is connected with the end of crab-bolt bar 1 in the mode of threaded engagement.
Crab-bolt bar 1 is clamping element 11 outside its outer end of inserting the building boring direction forms, should be connected as a single entity with crab-bolt bar 1 by outer clamping element 11, should outer clamping element 11 be a hex nut, be somebody's turn to do outer clamping element 11 and fixed sleeving 5 jointly with all expansion sleeves clampings between the two, thereby reach the purpose of expansion.
When not using expansion anchor, only crab-bolt bar 1 need be screwed out, thereby can not leave jut on the surface of building, do not influence the attractive in appearance of building surface.
The specific embodiment of the present invention four, with reference to Fig. 6, a kind of expansion anchor comprises a crab-bolt bar 1, is arranged with nut 2, fixed sleeving 3, expansion sleeve 4, expansion sleeve 5, fixed sleeving 6 on this crab-bolt bar 1 successively.
One end of fixed sleeving 3 forms press section 31, and this press section 31 is connected with the bulge 41 of expansion sleeve 4 one ends, and this bulge 41 is that a end axis at expansion sleeve 4 is to cuing open several expansion pieces of establishing several joint-cuttings and forming.The other end of expansion sleeve 4 forms press section 42, and this press section 42 is connected with the bulge 51 of expansion sleeve 5 one ends, and expansion sleeve 5 other ends form bulge 52, and this bulge 52 is connected with the press section 61 of fixed sleeving 6 one ends.Bulge 51, bulge 52 are identical with the structure of bulge 41.Contact at the bottom of the hole of the other end of fixed sleeving 6 and building boring, be that fixed sleeving 6 is positioned at the end of crab-bolt bar 1 at its insertion building boring direction, the inwall of this fixed sleeving 6 forms internal thread, the end of crab-bolt bar 1 forms and the suitable external screw thread of this internal thread, and fixed sleeving 6 is connected with the end of crab-bolt bar 1 in the mode of threaded engagement.
In use, nut 2 and fixed sleeving 6 cooperatively interact and jointly all expansion sleeves between the two are clamped, thereby reach the purpose of expansion.
Above-mentioned only is several specific embodiment of the present invention; but design concept of the present invention is not limited thereto; for example; a plurality of expansion sleeves can be arranged; correspondingly increase fixed sleeving, expansion sleeve can expand by an end, but also expand in two ends; allly utilize this design that the present invention is carried out the change of unsubstantiality, all should belong to the behavior of invading protection domain of the present invention.
Claims (10)
1. an expansion anchor comprises a crab-bolt bar, it is characterized in that: comprise that also at least one two ends that is sheathed on this crab-bolt bar all form expansion sleeve and at least one fixed sleeving of bulge; Described bulge is established several joint-cuttings and is formed in axially cuing open by the end of expansion sleeve; Described fixed sleeving end is formed for strutting the press section of described bulge; The fixed sleeving and the crab-bolt bar of crab-bolt bar inner end pass through threaded engagement; The outer end of this crab-bolt bar is provided with one and the clamping element that jointly all expansion sleeves between the two, fixed sleeving clamped of the fixed sleeving of described inner end.
2. a kind of expansion anchor as claimed in claim 1 is characterized in that: described bulge inside wall forms groove in each joint-cutting place, and the press section of described fixed sleeving forms and the suitable protuberance of this groove.
3. a kind of expansion anchor as claimed in claim 1 is characterized in that: described clamping element is a nut, passes through threaded engagement between this nut and the crab-bolt bar.
4. a kind of expansion anchor as claimed in claim 1 is characterized in that: described clamping element is integrally formed at this crab-bolt bar outer end, is cylindric, and its diameter is greater than the diameter of crab-bolt bar, and its inner end is formed for strutting the press section of described bulge; And be provided with a screwed hole in the outer end of this clamping element, the outer end of this screwed hole forms one and cooperates to rotate the pilot hole of this crab-bolt bar with external tool, is combined with one in this screwed hole and takes the lead screw rod.
5. a kind of expansion anchor as claimed in claim 1 is characterized in that: described clamping element and this crab-bolt bar are connected as a single entity, and its profile is a multi-edge column-shaped.
6. an expansion anchor comprises a crab-bolt bar, it is characterized in that: also comprise at least two expansion sleeves that are sheathed on this crab-bolt bar, the press section that the end formation bulge of this expansion sleeve, the other end form the bulge that struts adjacent expansion sleeve; Bulge is cutd open vertically by the end of expansion sleeve and establishes several joint-cuttings and form; Crab-bolt bar inner end has clamping element in by threaded engagement, the outer end of this crab-bolt bar be provided with one with described in clamping element jointly with the outer clamping element of all expansion sleeves clampings between the two.
7. a kind of expansion anchor as claimed in claim 6 is characterized in that: a press section that is formed for strutting described bulge is arranged in described outer clamping element or the interior clamping element.
8. expansion anchor, comprise a crab-bolt bar, it is characterized in that: comprise that also at least one two ends that is sheathed on this crab-bolt bar all form the expansion sleeve of bulge and the expansion sleeve that at least one end forms bulge, this bulge is cutd open vertically by the end of expansion sleeve and establishes several joint-cuttings and form; The other end that a described end forms the expansion sleeve of bulge forms the press section that described bulge is backed down; Crab-bolt bar inner end has clamping element in by threaded engagement, the outer end of this crab-bolt bar be provided with one with described in clamping element jointly with the outer clamping element of all expansion sleeves clampings between the two.
9. a kind of expansion anchor as claimed in claim 8 is characterized in that: a press section that is formed for strutting described bulge is arranged in described outer clamping element or the interior clamping element.
10. a kind of expansion anchor as claimed in claim 8 is characterized in that: also be arranged with at least one fixed sleeving on the described expansion anchor, the end that the bulge of this fixed sleeving and expansion anchor joins is located at and is used for press section that this expansion is strutted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100085141A CN101235658A (en) | 2007-01-30 | 2007-01-30 | Expansion anchor bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100085141A CN101235658A (en) | 2007-01-30 | 2007-01-30 | Expansion anchor bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101235658A true CN101235658A (en) | 2008-08-06 |
Family
ID=39919540
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007100085141A Pending CN101235658A (en) | 2007-01-30 | 2007-01-30 | Expansion anchor bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101235658A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102859208A (en) * | 2010-05-05 | 2013-01-02 | 费希尔厂有限责任两合公司 | Expanding anchor |
| CN103243714A (en) * | 2013-05-28 | 2013-08-14 | 唐山德泰机械制造有限公司 | High-strength pre-stressed anchor rod |
| CN111033060A (en) * | 2017-10-25 | 2020-04-17 | 喜利得股份公司 | Expansion anchor with sleeve abutment wall |
-
2007
- 2007-01-30 CN CNA2007100085141A patent/CN101235658A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102859208A (en) * | 2010-05-05 | 2013-01-02 | 费希尔厂有限责任两合公司 | Expanding anchor |
| CN102859208B (en) * | 2010-05-05 | 2014-11-12 | 费希尔厂有限责任两合公司 | Expanding anchor |
| CN103243714A (en) * | 2013-05-28 | 2013-08-14 | 唐山德泰机械制造有限公司 | High-strength pre-stressed anchor rod |
| CN103243714B (en) * | 2013-05-28 | 2015-06-10 | 唐山德泰机械制造有限公司 | High-strength pre-stressed anchor rod |
| CN111033060A (en) * | 2017-10-25 | 2020-04-17 | 喜利得股份公司 | Expansion anchor with sleeve abutment wall |
| CN111033060B (en) * | 2017-10-25 | 2021-09-28 | 喜利得股份公司 | Expansion anchor with sleeve abutment wall |
| US11946499B2 (en) | 2017-10-25 | 2024-04-02 | Hilti Aktiengesellschaft | Expansion anchor with sleeve abutment walls |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4344719A (en) | Internally expanding railing coupling | |
| CA1141999A (en) | Expanding anchor bolt assembly | |
| US20170114818A1 (en) | Anchor fastener including an expansion sleeve | |
| KR100877149B1 (en) | A fix device for standing pipe | |
| CN1104285A (en) | Double connector, especially for the concealed connection of two slabs | |
| JP2016132868A (en) | Bar-form metal fitting | |
| CN101235658A (en) | Expansion anchor bolt | |
| CN205088822U (en) | Curtain metallic structure vertical keel and vertical keel and rib's connection structure | |
| CN102052373A (en) | Nested tooth surface expansion pipe type expansion anchor bolt | |
| CN200993144Y (en) | Expansion anchor | |
| KR102697286B1 (en) | Wedge Anchor Assembly at Face of Exterior Wall | |
| KR101997401B1 (en) | Anchor assembly for building having an increased coupling force by a connecting member | |
| CN211231192U (en) | Stable form expansion screw | |
| GB2143571A (en) | Tie for existing cavity wall | |
| WO2014119488A1 (en) | Anchor bolt | |
| KR102082665B1 (en) | Pile assembly | |
| CN215333848U (en) | Expansion anchor bolt | |
| WO2004020842A3 (en) | Anchor bolt | |
| KR102183615B1 (en) | Anchor Plate with Increased Cohesion and Support | |
| JP2007510110A (en) | Fastening element | |
| KR102357129B1 (en) | Suspension apparatus for a outside panel of building | |
| CN212478285U (en) | Expansion locking sleeve | |
| CN113847317A (en) | Installation process for expansion anchor bolt and expansion anchor bolt used in process | |
| CN211690873U (en) | Prevent interior partition wall of fracture | |
| WO2008031271A1 (en) | Anchor bolt for architecture |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20080806 |