CN2462129Y - Flat head inner thrust rod expansion sleeve screw - Google Patents
Flat head inner thrust rod expansion sleeve screw Download PDFInfo
- Publication number
- CN2462129Y CN2462129Y CN 01203210 CN01203210U CN2462129Y CN 2462129 Y CN2462129 Y CN 2462129Y CN 01203210 CN01203210 CN 01203210 CN 01203210 U CN01203210 U CN 01203210U CN 2462129 Y CN2462129 Y CN 2462129Y
- Authority
- CN
- China
- Prior art keywords
- expansion sleeve
- screw
- push rod
- inner push
- flatheaded
- 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
- 238000009434 installation Methods 0.000 abstract description 9
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000007547 defect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
Landscapes
- Mutual Connection Of Rods And Tubes (AREA)
Abstract
The utility model relates to a flatheaded screw with an inner push rod and an expansion sleeve, which comprises an expansion sleeve tube, wherein, the lower section of which is provided with a side seam. The upper segment of the expansion sleeve tube is provided with internal screw threads. The tube wall of the lower segment becomes thicker from top to bottom. A sectional plane forms a wedge shape. The inner push rod which forms an inverted cone table body is arranged inside the expansion sleeve tube. A screw bolt is arranged on the expansion sleeve tube. When the flatheaded screw with an inner push rod and an expansion sleeve is arranged, a screw rod is inward. The defect that the existing expansion screws cause a plurality of inconvenience to people's production and life because the screw rod is extended outwards is overcome by the flatheaded screw with an inner push rod and an expansion sleeve. The flatheaded screw with an inner push rod and an expansion sleeve has the advantages of reasonable structure, convenient installation, safety, and strong fastening force. The flatheaded screw with an inner push rod and an expansion sleeve is suitable for the positioning and the installation of various objects.
Description
The utility model relates to a kind of setscrew, mainly relates to push rod expansion sleeve screw in a kind of tack.
At present, commercially available various setscrews mainly comprise screw rod, expansion sleeve, packing ring and nut, and the hypomere of expansion sleeve is provided with latasuture, and the upper end of screw rod is provided with screw thread, the lower end is gradually thick and be cone table, and a threaded end of screw rod passes expansion sleeve and is connected with the nut of expansion sleeve upper end.Rotating nut pulling screw rod moves the cone table of screw rod lower end, pushes in expansion sleeve, expansion sleeve then opens distortion along latasuture, and fixedlys connected with body of wall or ground.The torsion that is added on the nut is big more, and EXPANSION ANCHOR BOLTS is also just tight more with being connected of body of wall, and simultaneously, screw rod is overhanging also just long more, though this method can be fixed some objects, because screw rod is overhanging, brings unnecessary trouble to people.In real life, overhanging screw rod is not to tear clothes exactly the people to be tripped, and seriously influences people's production, life.
It is a kind of rational in infrastructure, easy for installation that the purpose of this utility model is to provide, the interior push rod expansion sleeve screw of the tack that fastening force is strong.
In order to achieve the above object, push rod expansion sleeve screw in the tack described in the utility model, comprise that hypomere is provided with the expansion sleeve of latasuture, the epimere of described expansion sleeve is provided with internal thread, the tube wall of hypomere is gradually thick from top to bottom, section is wedge shape, is provided with the interior push rod that is the back taper stage body in the expansion sleeve, and bolt is installed on the expansion sleeve.
Owing to adopted technique scheme, screw rod is inside when mounted, so push rod expansion sleeve screw has overcome the shortcoming that existing setscrew causes inconvenience for owing to screw rod is overhanging people's production, life in the tack described in the utility model, have rational in infrastructure simultaneously, easy for installation, safety, the advantage that fastening force is strong.
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Fig. 1 is the structural representation of push rod expansion sleeve screw in the tack described in the utility model;
As seen from Figure 1, push rod expansion sleeve screw comprises that hypomere is provided with the expansion sleeve 2 of latasuture 6 in the tack described in the utility model, plain washer 3 and spring washer 4, the epimere of expansion sleeve 2 is provided with internal thread, the tube wall of hypomere is gradually thick from top to bottom, section is wedge shape, is provided with the interior push rod 5 that is the back taper stage body that adapts with expansion sleeve 2 internal diameters in the expansion sleeve 2, and bolt 1 is installed on the expansion sleeve 2; The quantity of the latasuture 6 of the hypomere of expansion sleeve 2 can according to circumstances be decided, and gets final product more than 2, is advisable with 4-6.Expansion sleeve 2 middle parts are provided with the thin slightly expansion separating vessel 7 of a circle indent, the distortion of opening of expansion sleeve 2 is carried out along expansion separating vessel 7, the epimere outside of expansion sleeve 2 is provided with the anti-rotation bail 8 of outside protrusion, to prevent that expansion sleeve 2 rotates with bolt 1 in installation process.Also be provided with the decorative pattern 9 of evagination in the hypomere outside of expansion sleeve 2, can increase frictional force, make installation more firm.
During installation, expansion sleeve 2 is put into mounting hole, object is moved be placed on the mounting hole, and bolt 1 passes spring washer 4, plain washer 3 and object and is connected with expansion sleeve 2.Twist bolt 1 then, bolt 1 moves down in expansion sleeve 2, the interior push rod 5 that is the back taper stage body in the extrusion expansion sleeve pipe 2 moves down, 2 expansion separating vessels 7 along latasuture 6 and middle part of expansion sleeve open distortion, the torsion that is added on the bolt 1 is big more, in bolt 1 promotes push rod 5 move down also just many more, expansion sleeve 2 to open distortion also just big more, push rod expansion sleeve screw is also just firm more with being connected of body of wall or ground in the tack.
Push rod expansion sleeve screw in the tack described in the utility model, screw rod is inside when mounted, it has overcome existing various setscrew, because screw rod is overhanging, bring production, life to bring the shortcoming of inconvenience to people, the location and installation that is fit to various objects mainly is applicable to the location and installation of the various objects in the family, as antitheft door, air conditioner etc.Has rational in infrastructure, easy for installation, safety, the advantage that fastening force is strong.
Claims (4)
1, push rod expansion sleeve screw in a kind of tack, comprise that hypomere is provided with the expansion sleeve of latasuture (6) (2), it is characterized in that: the epimere of described expansion sleeve (2) is provided with internal thread, the tube wall of hypomere is gradually thick from top to bottom, section is wedge shape, be provided with the interior push rod (5) that is the back taper stage body in the expansion sleeve (2), bolt (1) is installed on the expansion sleeve (2).
2, push rod expansion sleeve screw in the tack according to claim 1 is characterized in that: the middle part of described expansion sleeve (2) is provided with the thin slightly expansion separating vessel (7) of a circle indent.
3, push rod expansion sleeve screw in the tack according to claim 1 and 2, it is characterized in that: the epimere outside of described expansion sleeve (2) is provided with the anti-rotation bail (8) of outside protrusion.
4, push rod expansion sleeve screw in the tack according to claim 1 is characterized in that: the hypomere outside of described expansion sleeve (2) is provided with the decorative pattern (9) of evagination.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01203210 CN2462129Y (en) | 2001-01-15 | 2001-01-15 | Flat head inner thrust rod expansion sleeve screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01203210 CN2462129Y (en) | 2001-01-15 | 2001-01-15 | Flat head inner thrust rod expansion sleeve screw |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00246580 Division CN2440967Y (en) | 2000-08-01 | 2000-08-01 | Flat head expansion sleeve screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2462129Y true CN2462129Y (en) | 2001-11-28 |
Family
ID=33624768
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01203210 Expired - Fee Related CN2462129Y (en) | 2001-01-15 | 2001-01-15 | Flat head inner thrust rod expansion sleeve screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2462129Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111512054A (en) * | 2017-12-29 | 2020-08-07 | 喜利得股份公司 | fastener |
| CN113915214A (en) * | 2020-07-07 | 2022-01-11 | 国山石材企业有限公司 | Anti-falling reverse hanging screw for stone and mounting method thereof |
-
2001
- 2001-01-15 CN CN 01203210 patent/CN2462129Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111512054A (en) * | 2017-12-29 | 2020-08-07 | 喜利得股份公司 | fastener |
| US11859647B2 (en) | 2017-12-29 | 2024-01-02 | Hilti Aktiengesellschaft | Fastener |
| CN113915214A (en) * | 2020-07-07 | 2022-01-11 | 国山石材企业有限公司 | Anti-falling reverse hanging screw for stone and mounting method thereof |
| CN113915214B (en) * | 2020-07-07 | 2023-03-24 | 国山石材企业有限公司 | Anti-fall and upside-down screw for stone and its installation method |
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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 |