CN102410291A - High-strength expansion bolt - Google Patents
High-strength expansion bolt Download PDFInfo
- Publication number
- CN102410291A CN102410291A CN201010290212XA CN201010290212A CN102410291A CN 102410291 A CN102410291 A CN 102410291A CN 201010290212X A CN201010290212X A CN 201010290212XA CN 201010290212 A CN201010290212 A CN 201010290212A CN 102410291 A CN102410291 A CN 102410291A
- Authority
- CN
- China
- Prior art keywords
- expansion sleeve
- expansion
- bolt
- frustoconic shape
- anchor bolts
- 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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Abstract
The invention discloses a high-strength expansion bolt. The high-strength expansion bolt comprises a bolt body, a nut and an expansion sleeve, wherein the bolt body is provided with a frustum-shaped bolt head of which a bigger end is the tail end thereof; the outside diameter of the bigger end of the frustum-shaped bolt head is larger than the inside diameter of the expansion sleeve; a plurality of uniformly arranged longitudinal notches are formed at two ends of the expansion sleeve; a frustum-shaped lug boss which is sleeved on the bolt body is arranged between the nut and the expansion sleeve; a smaller end of the frustum-shaped lug boss is inserted into the expansion sleeve; and the outside diameter of the bigger end of the frustum-shaped lug boss is larger than the inside diameter of the expansion sleeve. The high-strength expansion bolt has the advantages of high strength, high pull bearing capability, simple manufacturing method, low cost and convenience for use.
Description
Technical field:
The present invention relates to fastener areas, be specifically related to a kind of high tenacity EXPANSION ANCHOR BOLTS.
Background technique:
Traditional expansion bolt comprises the body of bolt and the nut and the expansion sleeve that match with it; It is its terminal frustoconic shape ailhead that the described body of bolt has big end; Said expansion sleeve has a plurality of vertical notches near an end of frustoconic shape ailhead; In other words an end of said expansion sleeve is divided into a plurality of expansion muscle, and its other end still is tubular.During use, fastening nut, the frustoconic shape ailhead is pressed in the said expansion sleeve from small end to big end; Force the tapered dilatancy of its expansion muscle; Such EXPANSION ANCHOR BOLTS just has an expansion Point of Strength in its end, the solid weak effect of support swelling, and also the bolt of the nut the other end is prone to lateral deviation.Also have and on a double-screw bolt, make two groups of expansion tubes in proper order; Effect is fair admittedly in some support swelling can to have two expansion point supports to expand like this; The integral body of EXPANSION ANCHOR BOLTS will extend like this; It has increased the thickness requirement of installed object is also corresponding, be not suitable for like this on thin object, using, and cost is also high.
Summary of the invention:
For solving the deficiency of existing technology, the invention provides a kind of intensity height, bear the high tenacity EXPANSION ANCHOR BOLTS that pulling force is big, easy to manufacture, cost is low, easy to use.
The present invention is achieved in that the high tenacity EXPANSION ANCHOR BOLTS; Comprise the body of bolt, nut and expansion sleeve; It is its terminal frustoconic shape ailhead that the described body of bolt has big end; The big end external diameter of described frustoconic shape ailhead is characterized in that greater than the internal diameter of said expansion sleeve: the two ends of described expansion sleeve all are provided with a plurality of evenly distributed vertical notches, and it is protruding to be provided with the frustoconic shape that is placed on the body of bolt between described nut and the expansion sleeve; The protruding small end of described frustoconic shape is plugged in the said expansion sleeve, and the big end external diameter of described frustoconic shape convexity is greater than the internal diameter of said expansion sleeve.
Vertical notch at said expansion sleeve two ends is mutually staggered and arranges.
Vertical notch at said expansion sleeve two ends is respectively 4.
The outside of said expansion sleeve is provided with outer anti-skid design.
The two ends of the expansion sleeve of high tenacity EXPANSION ANCHOR BOLTS of the present invention all are provided with a plurality of evenly distributed vertical notches, and an end of EXPANSION ANCHOR BOLTS is with the frustoconic shape ailhead, and the other end is with the frustoconic shape convexity; During use; Fastening nut, frustoconic shape ailhead, frustoconic shape convexity are pressed in the said expansion sleeve from two ends respectively from small end to big end, force the tapered dilatancy in expansion sleeve two end part; Such EXPANSION ANCHOR BOLTS has two expansion Point of Strength, and the support swelling is solid effective; Vertical notch at said expansion sleeve two ends is mutually staggered to be arranged, and can guarantee the intensity of expansion sleeve, splits and be unlikely; The outside of said expansion sleeve is provided with outer anti-skid design, can play the effect that increases fastness.
The advantage of high tenacity expansion spiral shell of the present invention is: intensity is high, bear that pulling force is big, easy to manufacture, cost is low, easy to use.
Description of drawings:
Accompanying drawing 1 is the structural representation of the embodiment of the invention.
Accompanying drawing 2 is the structural representation of expansion sleeve in the accompanying drawing 1.
Label among the figure is: 1, the body of bolt; 2, nut; 3, expansion sleeve; 4, frustoconic shape ailhead; 5, vertical notch; 6, frustoconic shape is protruding.
Embodiment:
Below in conjunction with accompanying drawing and embodiment, the present invention is made further detailed description, but does not constitute any restriction of the present invention:
Can know according to Fig. 1,2; High tenacity EXPANSION ANCHOR BOLTS of the present invention; Comprise the body of bolt 1, nut 2 and expansion sleeve 3, it is its terminal frustoconic shape ailhead 4 that the described body of bolt 1 has big end, and the big end external diameter of described frustoconic shape ailhead 4 is greater than the internal diameter of said expansion sleeve 3; The two ends of described expansion sleeve 3 all are provided with four evenly distributed vertical notches 4; Be provided with the frustoconic shape convexity 6 that is placed on the body of bolt 1 between described nut 2 and the expansion sleeve 3, the small end of described frustoconic shape protruding 6 is plugged in the said expansion sleeve 3, and the big end external diameter of described frustoconic shape protruding 6 is greater than the internal diameter of said expansion sleeve 3; Vertical notch 5 at said expansion sleeve 3 two ends is mutually staggered and arranges; The outside of said expansion sleeve 3 is provided with outer anti-skid design.During use; Fastening nut 2, frustoconic shape ailhead 4, frustoconic shape protruding 6 are pressed into from two ends in the said expansion sleeve 3 respectively from small end to big end, force the tapered dilatancy in expansion sleeve 3 two end part; Such EXPANSION ANCHOR BOLTS has two expansion Point of Strength, and the support swelling is solid effective; Vertical notch 5 at said expansion sleeve 3 two ends is mutually staggered to be arranged, and can guarantee the intensity of expansion sleeve 3, splits and be unlikely; The outside of said expansion sleeve 3 is provided with outer anti-skid design, can play the effect that increases fastness.The advantage of embodiment of the invention high tenacity expansion spiral shell is: intensity is high, bear that pulling force is big, easy to manufacture, cost is low, easy to use.
Claims (5)
1. high tenacity EXPANSION ANCHOR BOLTS; Comprise the body of bolt (1), nut (2) and expansion sleeve (3); It is its terminal frustoconic shape ailhead (4) that the described body of bolt (1) has big end; The big end external diameter of described frustoconic shape ailhead (4) is characterized in that greater than the internal diameter of said expansion sleeve (3): the two ends of described expansion sleeve (3) all are provided with a plurality of evenly distributed vertical notches (5), are provided with the frustoconic shape protruding (6) that is placed on the body of bolt (1) between described nut (2) and the expansion sleeve (3); The small end of described frustoconic shape protruding (6) is plugged in the said expansion sleeve, and the big end external diameter of described frustoconic shape protruding (6) is greater than the internal diameter of said expansion sleeve (3).
2. high tenacity EXPANSION ANCHOR BOLTS according to claim 1 is characterized in that: vertical notch (5) at said expansion sleeve (3) two ends is mutually staggered and arranges.
3. high tenacity EXPANSION ANCHOR BOLTS according to claim 1 and 2 is characterized in that: vertical notch (5) at said expansion sleeve (3) two ends is respectively 4.
4. high tenacity EXPANSION ANCHOR BOLTS according to claim 1 and 2 is characterized in that: the outside of said expansion sleeve (3) is provided with outer anti-skid design.
5. high tenacity EXPANSION ANCHOR BOLTS according to claim 3 is characterized in that: the outside of said expansion sleeve (3) is provided with outer anti-skid design.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010290212XA CN102410291A (en) | 2010-09-18 | 2010-09-18 | High-strength expansion bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010290212XA CN102410291A (en) | 2010-09-18 | 2010-09-18 | High-strength expansion bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102410291A true CN102410291A (en) | 2012-04-11 |
Family
ID=45912550
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010290212XA Pending CN102410291A (en) | 2010-09-18 | 2010-09-18 | High-strength expansion bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102410291A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108253857A (en) * | 2018-01-16 | 2018-07-06 | 西安物华巨能爆破器材有限责任公司 | A kind of grafting set between Magnedat and detonating primer |
| CN111561495A (en) * | 2020-05-27 | 2020-08-21 | 广东电网有限责任公司东莞供电局 | Electric power fastener erection equipment |
-
2010
- 2010-09-18 CN CN201010290212XA patent/CN102410291A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108253857A (en) * | 2018-01-16 | 2018-07-06 | 西安物华巨能爆破器材有限责任公司 | A kind of grafting set between Magnedat and detonating primer |
| CN108253857B (en) * | 2018-01-16 | 2024-01-19 | 西安物华巨能爆破器材有限责任公司 | Plug bush used between magneto-electric detonator and booster |
| CN111561495A (en) * | 2020-05-27 | 2020-08-21 | 广东电网有限责任公司东莞供电局 | Electric power fastener erection equipment |
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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 |
Application publication date: 20120411 |