CN2444080Y - Expanding screw - Google Patents
Expanding screw Download PDFInfo
- Publication number
- CN2444080Y CN2444080Y CN 00251646 CN00251646U CN2444080Y CN 2444080 Y CN2444080 Y CN 2444080Y CN 00251646 CN00251646 CN 00251646 CN 00251646 U CN00251646 U CN 00251646U CN 2444080 Y CN2444080 Y CN 2444080Y
- Authority
- CN
- China
- Prior art keywords
- screw rod
- expansion
- expansion sleeve
- diameter
- screw
- 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
Links
Images
Abstract
The utility model discloses an expansion screw bolt, which comprises a screw rod, an expansion sleeve, a nut, and a shim. The expansion screw bolt is characterized in that a column, of which a diameter is smaller than the diameter of a column body, is arranged between a cone body and the column body of the screw rod. An expansion sleeve is arranged on a small column. Openings are uniformly distributed on the circumference surface of the expansion sleeve, which faces the cone body of the screw rod. Because the expansion sleeve is arranged on the column body with a thinner diameter between the cone body and the column of the screw rod, the expansion sleeve is short, and the diameter of the cone body of the screw rod is the same as the outer diameter of the expansion sleeve and screw threads, and compared with the existing expansion screw bolts, the expansion screw bolt has the advantages of material saving, convenient construction, and fewer exposed parts of the screw rod.
Description
The utility model relates to a kind of mechanical fasteners technology, particularly a kind of EXPANSION ANCHOR BOLTS.
Traditional expansion bolt, the length of its expansion sleeve is longer, and the cone diameter of screw rod tail is bigger than screw rod, and the one, many with material, the 2nd, the required reach of swelling is longer, and construction is inconvenient, and the screw rod exposed parts is long, and is not attractive in appearance.
The purpose of this utility model provides a kind of EXPANSION ANCHOR BOLTS, and its expansion sleeve is short, and external diameter is identical with screw rod, and the required reach of swelling is short, and the screw rod exposed parts is short.
Task of the present utility model is to realize like this, it comprises screw rod, expansion set, nut and pad, it is characterized in that: be provided with the diameter cylinder littler between the cone of screw rod and the cylindrical body than this cylinder diameter, small column is provided with expansion sleeve, on the circumferential surface of screw rod cone, be evenly equipped with opening at expansion sleeve, also can on the expansion sleeve outer surface, projection be set, skid when preventing to install.
The utility model is owing to be arranged on expansion sleeve on the thinner cylinder of the cone of screw rod and the diameter between the cylinder, expansion sleeve is short, the cone diameter of screw rod is identical with the external diameter of expansion sleeve and screw thread, thereby, compare with traditional expansion bolt and to have the saving material, easy construction, the advantage that the screw rod exposed parts is few.
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the A-A sectional drawing of Fig. 1.
Drawing explanation: 1. expansion sleeve 2. screw rods 3. pads 4. nuts
Describe embodiment of the present utility model in detail in conjunction with above accompanying drawing.One end of screw rod 2 is provided with screw thread, an other end is provided with cone, between screw thread and cone, be provided with the cylinder of two different-diameters, expansion sleeve 1 places on the less cylinder of the diameter that joins with cone, be evenly equipped with three or two openings on the cylinder that expansion sleeve and cone are joined, its outer surface is provided with projection.The development size blanking of pressing expansion sleeve 2 earlier, die-cut its open seam also extrudes projection, place it in special-purpose forming die internal shaping then on screw rod, during construction, the screw rod 2 that will have expansion sleeve 1 places in the porthole, cover Upper gasket 3, screw on nut 4, fastening nut, expansion sleeve promptly with the porthole swelling, its tension force is bigger.
Claims (2)
1, a kind of EXPANSION ANCHOR BOLTS, it comprises screw rod, and expansion set, nut and pad is characterized in that: be provided with the diameter cylinder littler than this cylinder diameter between the cone of screw rod and the cylindrical body, small column is provided with expansion sleeve, is evenly equipped with opening at expansion sleeve on the circumferential surface of screw rod cone.
2, EXPANSION ANCHOR BOLTS according to claim 1 is characterized in that: be provided with projection on the expansion sleeve outer surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00251646 CN2444080Y (en) | 2000-09-12 | 2000-09-12 | Expanding screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00251646 CN2444080Y (en) | 2000-09-12 | 2000-09-12 | Expanding screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2444080Y true CN2444080Y (en) | 2001-08-22 |
Family
ID=33609501
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00251646 Expired - Fee Related CN2444080Y (en) | 2000-09-12 | 2000-09-12 | Expanding screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2444080Y (en) |
-
2000
- 2000-09-12 CN CN 00251646 patent/CN2444080Y/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN2444080Y (en) | Expanding screw | |
| CN201386718Y (en) | Novel expansion screw | |
| CN2385128Y (en) | Expansion bolt | |
| CN2372492Y (en) | Second expansion bolt | |
| CN2242990Y (en) | Top-expansion type expansion bolt | |
| CN2387303Y (en) | Expansion sheet bolt | |
| CN2336126Y (en) | Countersunk expansion bolt | |
| CN201513451U (en) | Expansion nut | |
| CN2158461Y (en) | Spiral tube type expanding bolt | |
| CN2392019Y (en) | Upset bolt | |
| CN2498393Y (en) | Two end expandable screw bolt | |
| CN2363110Y (en) | Large area expansion screw bolt | |
| CN2268796Y (en) | Expansion pipe | |
| CN2333836Y (en) | Strong anchoring expansion bolt | |
| CN2231729Y (en) | Internal thread expansive bolt | |
| CN2583420Y (en) | Expansion bolt | |
| CN218718020U (en) | Telescopic repeatedly usable's expansion bolts | |
| CN2267344Y (en) | Internal expanding self-locking type bolt | |
| CN201269239Y (en) | Dismountable expansion type fixer | |
| CN2152932Y (en) | Expansion bolt | |
| CN2227757Y (en) | Conical nut type upset bolt | |
| CN2388392Y (en) | Adjustable expansio screw | |
| CN2484433Y (en) | Expansion screw bolt | |
| CN2168112Y (en) | Expansion screw assemblage | |
| CN2350526Y (en) | Anchor-before-pour type anchoring-bolt anchor head device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |