CN105221533A - Expansion anchor bolts - Google Patents
Expansion anchor bolts Download PDFInfo
- Publication number
- CN105221533A CN105221533A CN201510560721.2A CN201510560721A CN105221533A CN 105221533 A CN105221533 A CN 105221533A CN 201510560721 A CN201510560721 A CN 201510560721A CN 105221533 A CN105221533 A CN 105221533A
- Authority
- CN
- China
- Prior art keywords
- countersunk head
- expand tube
- head screw
- screw rod
- tensioner ring
- 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
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Abstract
The present invention gives a kind of EXPANSION ANCHOR BOLTS, comprise countersunk head screw rod, expand tube, countersunk head screw rod rear portion is provided with screw thread, and the rear sidewall of expand tube has some inflation openings, and expand tube front portion has some embedding notches, and countersunk head screw rod rear portion is stretched in expand tube from expand tube front portion; Countersunk head screw rod rear portion is also provided with tensioner ring, and tensioner ring is cone table shape, has the tapped hole running through its front/rear end in tensioner ring, and tensioner ring coordinates with countersunk head screw flight.Handle countersunk head bolt rotary, but because the tensioner ring at countersunk head screw rod rear portion and expand tube sidewall rub, tensioner ring coordinates with countersunk head screw flight, and the relative countersunk head screw rod of tensioner ring has axial displacement, and namely tensioner ring is mobile to countersunk head screw rod front portion, tensioner ring rear portion is stretched in expand tube gradually, expand tube rear sidewall is strutted, reaches the object of expansion, after this EXPANSION ANCHOR BOLTS has been assembled, the anterior effect because of the tapered round platform of countersunk head screw rod of expand tube embeds in flanging, and the tapered round platform of countersunk head screw rod can submerge in expand tube completely.
Description
Technical field
The present invention relates to a kind of EXPANSION ANCHOR BOLTS.
Background technique
Common EXPANSION ANCHOR BOLTS is made up of countersunk head screw rod, expand tube, pad and nut, during use, first must get out the hole of corresponding size on fixed body, then in countersunk head screw rod, expand tube load hole, tightening nut can make countersunk screw, expand tube, between assembling set with fixed body swelling become to be integrated; Common EXPANSION ANCHOR BOLTS is after assembling completes, and wall outer side can be stretched out in the end of nut countersunk head screw rod, but some working environment corresponding, and when EXPANSION ANCHOR BOLTS can not be stretched out outside body of wall, common EXPANSION ANCHOR BOLTS is then inapplicable.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of structure EXPANSION ANCHOR BOLTS simple, easy to use.
For solving the problems of the technologies described above, the invention provides a kind of EXPANSION ANCHOR BOLTS, comprising countersunk head screw rod, expand tube, countersunk head screw rod rear portion is provided with screw thread, the rear sidewall of expand tube has some inflation openings, and expand tube front portion has some embedding notches, and countersunk head screw rod rear portion is stretched in expand tube from expand tube front portion;
Countersunk head screw rod rear portion is also provided with tensioner ring, and tensioner ring is cone table shape, has the tapped hole running through its front/rear end in tensioner ring, and tensioner ring coordinates with countersunk head screw flight.
After adopting such structure, handle countersunk head bolt rotary, but because the tensioner ring at countersunk head screw rod rear portion and expand tube sidewall rub, tensioner ring coordinates with countersunk head screw flight, the relative countersunk head screw rod of tensioner ring has axial displacement, namely tensioner ring is mobile to countersunk head screw rod front portion, tensioner ring rear portion is stretched in expand tube gradually, expand tube rear sidewall is strutted, reach the object of expansion, after this EXPANSION ANCHOR BOLTS has been assembled, the anterior effect because of the tapered round platform of countersunk head screw rod of expand tube embeds in flanging, and the tapered round platform of countersunk head screw rod can submerge in expand tube completely.
The tensioner ring outer wall of this EXPANSION ANCHOR BOLTS there are some fins; After adopting such structure, improve the frictional force between tensioner ring and expand tube sidewall.
The expand tube rear sidewall of this EXPANSION ANCHOR BOLTS outwards has the flange of bending along described inflation openings; Expand tube tube wall also has the expansion gap running through expand tube front/rear end; After adopting such structure, expand tube and outside frictional force can be increased, during use, stop expand tube to follow countersunk head bolt rotary.
The anterior sidewall of expand tube of this EXPANSION ANCHOR BOLTS there are some outward extending flangings; After this EXPANSION ANCHOR BOLTS uses, countersunk head screw rod stretches in the flanging of expand tube, and after completing, countersunk head screw rod can not stretch out wall outer side.
Accompanying drawing explanation
Fig. 1 is the stereogram of this EXPANSION ANCHOR BOLTS embodiment.
Fig. 2 is the stereogram of this EXPANSION ANCHOR BOLTS embodiment countersunk head screw rod.
Fig. 3 is the stereogram of this EXPANSION ANCHOR BOLTS embodiment expand tube.
Fig. 4 is the stereogram of this EXPANSION ANCHOR BOLTS embodiment tensioner ring.
Embodiment
As shown in Figures 1 to 4
This EXPANSION ANCHOR BOLTS comprises countersunk head screw rod 1, expand tube 2, tensioner ring 3.
There is the conical round table 11 of 90 ° countersunk head screw rod 1 front end, and conical round table 11 front-end face has cross recess 12, and countersunk head screw rod 1 sidewall rear portion is provided with outside thread.
Expand tube 2 is roughly one section of cylinder-shaped sleeve, the anterior sidewall of expand tube 2 has four outward extending flangings, 22, four flangings 22 along the anterior circle distribution of expand tube 2, and the length of flanging 22 is greater than conical round table 11 height of countersunk head screw rod 1; The rear sidewall of expand tube 2 has four inflation openings 23, inflation openings 23 extends to the ear end face of expand tube 2, and expand tube 2 rear sidewall outwards has the flange 24 of bending along described inflation openings 23, flange 24 is provided with gap, flange 24 trend of expand tube 2 rear sidewall moves towards contrary with externally threaded the screwing of countersunk head screw rod 1, expand tube 2 tube wall has the expansion gap running through expand tube 2 front and rear end, expansion gap overlaps with in four inflation openings 23.
Countersunk head screw rod 1 rear portion is stretched in expand tube 2 from expand tube 2 front portion, countersunk head screw rod 1 rear portion is also provided with tensioner ring 3, tensioner ring 3 is cone table shape, tensioner ring 3 front-end face area is less than ear end face area, the tapped hole 31 running through its front/rear end is had in tensioner ring 3, tensioner ring 3 and countersunk head screw rod 1 screw-thread fit, tensioner ring 3 outer wall has many fins 32.
During use, this EXPANSION ANCHOR BOLTS is placed in mounting hole pre-drilled in body of wall, screw-driver is utilized to coordinate with the cross recess 12 of countersunk head screw rod 1, handle countersunk head screw rod 1 to rotate, but because the tensioner ring 3 at countersunk head screw rod 1 rear portion rubs with expand tube 2 sidewall, relatively rotate between tensioner ring 3 and countersunk head screw rod 1, in rotation process, tensioner ring 3 and countersunk head screw rod 1 screw-thread fit, and then the relative countersunk head screw rod 1 of tensioner ring 3 has axial displacement, namely tensioner ring 3 is mobile to countersunk head screw rod 1 front portion, in the process, tensioner ring 3 rear portion is stretched in expand tube 2 gradually, expand tube 2 rear sidewall is strutted, reach the object of expansion,
After this EXPANSION ANCHOR BOLTS has been assembled, expand tube 2 front portion is because of in the effect embedding flanging 22 of the tapered round platform of countersunk head screw rod 1, and the tapered round platform of countersunk head screw rod 1 can submerge in expand tube 2 completely.
Above-described is only one embodiment of the present invention, it should be pointed out that for the person of ordinary skill of the art, under the premise without departing from the principles of the invention, can also make some modification and improvement, and these also should be considered as belonging to protection scope of the present invention.
Claims (4)
1. an EXPANSION ANCHOR BOLTS, comprises countersunk head screw rod, expand tube, and countersunk head screw rod rear portion is provided with screw thread, the rear sidewall of expand tube has some inflation openings, it is characterized in that: expand tube front portion has some embedding notches, and countersunk head screw rod rear portion is stretched in expand tube from expand tube front portion;
Countersunk head screw rod rear portion is also provided with tensioner ring, and tensioner ring is cone table shape, has the tapped hole running through its front/rear end in tensioner ring, and tensioner ring coordinates with countersunk head screw flight.
2. EXPANSION ANCHOR BOLTS according to claim 1, is characterized in that: tensioner ring outer wall has some fins.
3. EXPANSION ANCHOR BOLTS according to claim 1, is characterized in that: expand tube rear sidewall outwards has the flange of bending along described inflation openings; Expand tube tube wall also has the expansion gap running through expand tube front/rear end.
4. EXPANSION ANCHOR BOLTS according to claim 1, is characterized in that: the anterior sidewall of described expand tube has some outward extending flangings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510560721.2A CN105221533A (en) | 2015-09-06 | 2015-09-06 | Expansion anchor bolts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510560721.2A CN105221533A (en) | 2015-09-06 | 2015-09-06 | Expansion anchor bolts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105221533A true CN105221533A (en) | 2016-01-06 |
Family
ID=54990706
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510560721.2A Pending CN105221533A (en) | 2015-09-06 | 2015-09-06 | Expansion anchor bolts |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105221533A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109869394A (en) * | 2019-04-10 | 2019-06-11 | 罗定市麟千五金科技有限公司 | Setscrew |
| CN110630607A (en) * | 2019-10-14 | 2019-12-31 | 无锡安士达五金有限公司 | Novel quick-mounting rivet |
| CN111255786A (en) * | 2020-04-01 | 2020-06-09 | 夏俊文 | Slider formula expansion bolts |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2630722A1 (en) * | 1976-07-08 | 1978-01-12 | Herbert Lehmann | Dowel for fitting workpieces on wall - has adaptable connector held on dowel central screw with taper plugs |
| DE3509986A1 (en) * | 1985-03-20 | 1986-10-02 | Egon 8900 Augsburg Lange | Expanding dowel |
| CN2269488Y (en) * | 1995-07-04 | 1997-12-03 | 张俊盼 | Expanding bolt with inner nut |
| CN202833493U (en) * | 2012-07-26 | 2013-03-27 | 安阳鑫龙煤业(集团)龙山煤业有限责任公司 | Two-way expansion bolt |
| CN104235141A (en) * | 2014-10-08 | 2014-12-24 | 张永兰 | Expansion bolt |
| CN205064494U (en) * | 2015-09-06 | 2016-03-02 | 于光成 | Expansion bolt |
-
2015
- 2015-09-06 CN CN201510560721.2A patent/CN105221533A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2630722A1 (en) * | 1976-07-08 | 1978-01-12 | Herbert Lehmann | Dowel for fitting workpieces on wall - has adaptable connector held on dowel central screw with taper plugs |
| DE3509986A1 (en) * | 1985-03-20 | 1986-10-02 | Egon 8900 Augsburg Lange | Expanding dowel |
| CN2269488Y (en) * | 1995-07-04 | 1997-12-03 | 张俊盼 | Expanding bolt with inner nut |
| CN202833493U (en) * | 2012-07-26 | 2013-03-27 | 安阳鑫龙煤业(集团)龙山煤业有限责任公司 | Two-way expansion bolt |
| CN104235141A (en) * | 2014-10-08 | 2014-12-24 | 张永兰 | Expansion bolt |
| CN205064494U (en) * | 2015-09-06 | 2016-03-02 | 于光成 | Expansion bolt |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109869394A (en) * | 2019-04-10 | 2019-06-11 | 罗定市麟千五金科技有限公司 | Setscrew |
| CN110630607A (en) * | 2019-10-14 | 2019-12-31 | 无锡安士达五金有限公司 | Novel quick-mounting rivet |
| CN110630607B (en) * | 2019-10-14 | 2024-06-07 | 无锡安士达五金有限公司 | Novel quick installation rivet |
| CN111255786A (en) * | 2020-04-01 | 2020-06-09 | 夏俊文 | Slider formula expansion bolts |
| CN111255786B (en) * | 2020-04-01 | 2021-12-31 | 金华市荣创五金工具有限公司 | Slider formula expansion bolts |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160106 |