CN202001454U - High-strength expansion bolt - Google Patents
High-strength expansion bolt Download PDFInfo
- Publication number
- CN202001454U CN202001454U CN2010205401320U CN201020540132U CN202001454U CN 202001454 U CN202001454 U CN 202001454U CN 2010205401320 U CN2010205401320 U CN 2010205401320U CN 201020540132 U CN201020540132 U CN 201020540132U CN 202001454 U CN202001454 U CN 202001454U
- Authority
- CN
- China
- Prior art keywords
- expansion sleeve
- expansion
- bolt
- frustoconic shape
- high strength
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a high-strength expansion bolt, which comprises a bolt body, a nut and an expansion casing. The bolt body is provided with a round-platform shaped nail head which has a large end as the tail end. The external diameter of the large end of the round-platform shaped nail head is larger than the internal diameter of the expansion casing. The two ends of the expansion casing are both provided with a plurality of vertical notches which are uniformly arranged. A round-platform shaped projection sleeved on the bolt body is equipped between the nut and the expansion casing. A small end of the round-platform shaped projection is inserted in the expansion casing. The external diameter of a large end of the round-platform shaped projection is larger than the internal diameter of the expansion casing. The expansion bolt in the utility model has the advantages of high strength, large borne pulling force, easy manufacturing, low cost and convenient use.
Description
Technical field:
The utility model relates to fastener areas, is specifically related to a kind of high strength 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, described expansion sleeve has a plurality of vertical notches near an end of frustoconic shape ailhead, in other words an end of described 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 described 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 deficiencies in the prior art, the utility model provides a kind of intensity height, has born the high strength EXPANSION ANCHOR BOLTS that pulling force is big, easy to manufacture, cost is low, easy to use.
The utility model is achieved in that the high strength 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 greater than the internal diameter of described expansion sleeve, it is characterized in that: the two ends of described expansion sleeve all are provided with a plurality of evenly distributed vertical notches, be provided with the frustoconic shape projection that is placed on the body of bolt between described nut and the expansion sleeve, the small end of described frustoconic shape projection is plugged in the described expansion sleeve, and the big end external diameter of described frustoconic shape projection is greater than the internal diameter of described expansion sleeve.
Vertical notch at described expansion sleeve two ends is mutually staggered and arranges.
Vertical notch at described expansion sleeve two ends is respectively 4.
The outside of described expansion sleeve is provided with outer anti-skid design.
The two ends of the expansion sleeve of the utility model high strength EXPANSION ANCHOR BOLTS all are provided with a plurality of evenly distributed vertical notches, one end of EXPANSION ANCHOR BOLTS is with the frustoconic shape ailhead, the other end is with the frustoconic shape projection, during use, fastening nut, frustoconic shape ailhead, frustoconic shape projection are pressed in the described 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 described 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 described expansion sleeve is provided with outer anti-skid design, can play the effect that increases fastness.
The advantage of the utility model high strength expansion spiral shell is: the intensity height, bear that pulling force is big, easy to manufacture, cost is low, easy to use.
Description of drawings:
Accompanying drawing 1 is the utility model embodiment's a structural representation.
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 projection.
Embodiment:
Below in conjunction with drawings and Examples, the utility model is described in further detail, but is not constituted any restriction of the present utility model:
According to Fig. 1,2 as can be known, the utility model high strength 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 greater than the internal diameter of described expansion sleeve 3, the two ends of described expansion sleeve 3 all are provided with four evenly distributed vertical notches 5, be provided with the frustoconic shape projection 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 projection 6 is plugged in the described expansion sleeve 3, and the big end external diameter of described frustoconic shape projection 6 is greater than the internal diameter of described expansion sleeve 3; Vertical notch 5 at described expansion sleeve 3 two ends is mutually staggered and arranges; The outside of described expansion sleeve 3 is provided with outer anti-skid design.During use, fastening nut 2, frustoconic shape ailhead 4, frustoconic shape projection 6 are pressed into from two ends in the described 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 described 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 described expansion sleeve 3 is provided with outer anti-skid design, can play the effect that increases fastness.The advantage of the utility model embodiment high strength expansion spiral shell is: the intensity height, bear that pulling force is big, easy to manufacture, cost is low, easy to use.
Claims (5)
1. high strength 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 greater than the internal diameter of described expansion sleeve (3), it is characterized in that: the two ends of described expansion sleeve (3) all are provided with a plurality of evenly distributed vertical notches (5), be provided with the frustoconic shape projection (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 projection (6) is plugged in the described expansion sleeve, and the big end external diameter of described frustoconic shape projection (6) is greater than the internal diameter of described expansion sleeve (3).
2. high strength EXPANSION ANCHOR BOLTS according to claim 1 is characterized in that: vertical notch (5) at described expansion sleeve (3) two ends is mutually staggered and arranges.
3. high strength EXPANSION ANCHOR BOLTS according to claim 1 and 2 is characterized in that: vertical notch (5) at described expansion sleeve (3) two ends is respectively 4.
4. high strength EXPANSION ANCHOR BOLTS according to claim 1 and 2 is characterized in that: the outside of described expansion sleeve (3) is provided with outer anti-skid design.
5. high strength EXPANSION ANCHOR BOLTS according to claim 3 is characterized in that: the outside of described expansion sleeve (3) is provided with outer anti-skid design.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205401320U CN202001454U (en) | 2010-09-18 | 2010-09-18 | High-strength expansion bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205401320U CN202001454U (en) | 2010-09-18 | 2010-09-18 | High-strength expansion bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202001454U true CN202001454U (en) | 2011-10-05 |
Family
ID=44704197
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205401320U Expired - Fee Related CN202001454U (en) | 2010-09-18 | 2010-09-18 | High-strength expansion bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202001454U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102588407A (en) * | 2012-02-29 | 2012-07-18 | 福建鹏坤实业有限公司 | Composite expansion anchor bolt |
| CN104001990A (en) * | 2014-05-16 | 2014-08-27 | 浙江吉利控股集团有限公司 | Gear machining clamping device and gear machining machine tool |
| CN104001990B (en) * | 2014-05-16 | 2018-06-01 | 浙江吉利控股集团有限公司 | Gear Processing clamping device and gear cutting machine |
-
2010
- 2010-09-18 CN CN2010205401320U patent/CN202001454U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102588407A (en) * | 2012-02-29 | 2012-07-18 | 福建鹏坤实业有限公司 | Composite expansion anchor bolt |
| CN104001990A (en) * | 2014-05-16 | 2014-08-27 | 浙江吉利控股集团有限公司 | Gear machining clamping device and gear machining machine tool |
| CN104001990B (en) * | 2014-05-16 | 2018-06-01 | 浙江吉利控股集团有限公司 | Gear Processing clamping device and gear cutting machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111005 Termination date: 20130918 |