CN2668913Y - Hammering type expansion screw - Google Patents
Hammering type expansion screw Download PDFInfo
- Publication number
- CN2668913Y CN2668913Y CNU2004200432558U CN200420043255U CN2668913Y CN 2668913 Y CN2668913 Y CN 2668913Y CN U2004200432558 U CNU2004200432558 U CN U2004200432558U CN 200420043255 U CN200420043255 U CN 200420043255U CN 2668913 Y CN2668913 Y CN 2668913Y
- Authority
- CN
- China
- Prior art keywords
- lining
- hammering
- utility
- bulge
- nail
- 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 relates to an expanded screw. The technical characteristics are that the utility model comprises a lining and a hammer, the front end of the lining is an expansion part which is arranged with a plurality of slots along central axis direction, the lining is arranged with a breakthrough bore canal for containing hammer pin along central axis direction, and the breakthrough bore canal is arranged with a blind end for matching with the pushing end of the hammer pin at the expansion part. The utility model has the advantages of few components, simple structure, high installation efficiency, excellent lining after installing and good fixing performance.
Description
Technical field
The utility model belongs to the mechanical parts technical field, specifically, relates to a kind of setscrew.
Background technique
At present, the maximum a kind of setscrew of known use by a threaded nut of front end tapered the loosing core and wrap in metal-coating on the tapered end of loosing core, that its front end has some notches in rear end form.If will this setscrew be installed on the wall, at first to bore the suitable hole of a size, the depth on the wall, then a screw end that is surrounded by metal-coating be filled in the hole, and then by screwing nut, extract gradually loosing core metal-coating is expanded, fixing on the wall to realize setscrew.This expansion of structure screw is because the helical pitch of screw thread is short, the mobile speed of loosing core is slow, thereby installation efficiency is low, and, it is loosed core and exposes, the metal-coating dilation is again for emptying part, so, have that installation efficiency is low, fixed effect is poor, loose core and expose oversize and influence the shortcoming that other parts are installed.
Summary of the invention
The purpose of this utility model is at the problems referred to above, provide a kind of simple in structure, installation efficiency is high, the setscrew of good fixing effect.
The purpose of this utility model is achieved in that by lining and hammering nail to be formed, the front end of lining is to offer some the bulges along the line of rabbet joint of central axial direction, lining is provided with the duct that places of ccontaining hammering nail along central axial direction, place the duct be provided with at the bulge place of lining one with the closed end of the propelling end coupling of hammering nail.
The utility model, the periphery of the bulge of lining can be provided with some ring grain grooves, make the bulge distending after, the base material fastening is fixed.
The utility model, a locking nut can be installed in the rear end of lining, makes installation back setscrew more firm.
The utility model, owing to only need two parts of lining and hammering nail, so simple in structure; Owing to directly the hammering nail is applied external force when using, effectively protect lining excellent; Because the bulge of screw adopts the mode of hammering distending, thereby the installation efficiency height, and behind the screw distending, do not find time in the centre, thereby good fixing effect; Because the hammering nail is pushed after the hammering, and the setscrew position is constant relatively, screws setscrew with nut again, so it is more firm that the back setscrew is installed.
Following embodiment's accompanying drawings is further described the utility model.
Description of drawings
Fig. 1 is the utility model embodiment 1 a perspective view;
Fig. 2 is Fig. 1 embodiment 1 an internal structure schematic representation;
Fig. 3 is the utility model embodiment 2 an internal structure schematic representation.
Among the figure, 1, lining, 2, the hammering nail, 3, place the duct, 4, the line of rabbet joint, 5, bulge, 6, advance end, 7, closed end, 8, the ring grain groove, 9, locking nut, 10, advance nail, 11, the hammering head, 12, screw thread.
Embodiment
With reference to Fig. 1, Fig. 2, present embodiment 1 is made up of lining 1 and hammering nail 2, and the front end of this lining 1 is a bulge 5, offers four lines of rabbet joint 4 along central axial direction on the bulge 5, and the formation cross bath is provided with some ring grain grooves 8 in the periphery of bulge 5; One locking nut 9 is installed in the rear end of lining 1; Lining 1 is provided with one along central axial direction and places duct 3, and the ccontaining hammering nail 2 in open end that places duct 3 is inserted, and at bulge 5 places of lining 1, this places duct 3 is closed ends 7, and this closed end 7 mates with the propelling end 6 of this hammering nail 2.
With reference to Fig. 3, present embodiment 2 difference from Example 1 are hammering nail 2 by advancing nail 10 and hammering 11 to form, and external force passes to and advances nail 10 after acting on hammering 11, after propelling finishes, can take away hammering 11.
Use of the present utility model, with embodiment 1 is example, the front end of lining 1 is the bulge 5 that has a cross notch along central axial direction, can make bulge 5 be flap along notch after it is subjected to hammering nail 2 axial forces that transmit and strut, and realize radial expansion; The rear end of lining 1 is shaped on screw thread 12, can be used for being screwed into locking nut 9, and it also is that this setscrew is connected fastening connection fastening piece with required installation object simultaneously, and it can select its length according to the actual (real) thickness that object is installed.
Claims (3)
1, a kind of hammering type setscrew, it is characterized in that: form by lining (1) and hammering nail (2), the front end of described lining (1) is the bulge (5) that offers some the lines of rabbet joint along central axial direction (4), described lining (1) places duct (3) along what central axial direction was provided with a ccontaining described hammering nail (2), described place duct (3) the bulge (5) of lining (1) locate to be provided with one with the closed end (7) of propelling end (6) coupling of described hammering nail (2).
2, hammering type setscrew according to claim 1 is characterized in that: the periphery of the bulge (5) of described lining (1) is provided with some ring grain grooves (8).
3, hammering type setscrew according to claim 1 and 2 is characterized in that: the rear end of described lining (1) is equipped with a locking nut (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2004200432558U CN2668913Y (en) | 2004-03-01 | 2004-03-01 | Hammering type expansion screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2004200432558U CN2668913Y (en) | 2004-03-01 | 2004-03-01 | Hammering type expansion screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2668913Y true CN2668913Y (en) | 2005-01-05 |
Family
ID=34441691
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2004200432558U Expired - Fee Related CN2668913Y (en) | 2004-03-01 | 2004-03-01 | Hammering type expansion screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2668913Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106351927A (en) * | 2016-11-18 | 2017-01-25 | 济南天泽集成房屋有限公司 | Mace type expansion wall anchoring part |
| CN106640895A (en) * | 2016-12-31 | 2017-05-10 | 重庆大学 | Double-nut screw type fixed connector based on push expansion elastic deformation |
-
2004
- 2004-03-01 CN CNU2004200432558U patent/CN2668913Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106351927A (en) * | 2016-11-18 | 2017-01-25 | 济南天泽集成房屋有限公司 | Mace type expansion wall anchoring part |
| CN106640895A (en) * | 2016-12-31 | 2017-05-10 | 重庆大学 | Double-nut screw type fixed connector based on push expansion elastic deformation |
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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 |