CN203201939U - Semicircular self-tapping screw - Google Patents
Semicircular self-tapping screw Download PDFInfo
- Publication number
- CN203201939U CN203201939U CN 201320154177 CN201320154177U CN203201939U CN 203201939 U CN203201939 U CN 203201939U CN 201320154177 CN201320154177 CN 201320154177 CN 201320154177 U CN201320154177 U CN 201320154177U CN 203201939 U CN203201939 U CN 203201939U
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- screw
- tapping
- groove
- self
- semicircular
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Abstract
The utility model provides a semicircular self-tapping screw. The semicircular self-tapping screw comprises a screw cap, a threaded rod, and a connecting piece, wherein the connecting piece is arranged between the screw cap and the threaded rod, the screw cap is semicircular, a screw head is arranged on the lower end of the threaded rod, self-tapping threads are arranged on the outer edge of the threaded rod, reinforcing ribs are arranged on the surface of the screw cap, the reinforcing ribs are arranged in parallel, a groove is formed in the upper end of the screw cap, the groove is rectangular, and the depth of the groove is 3-7mm. According to the semicircular self-tapping screw, due to arrangement of the self-tapping threads, the semicircular self-tapping screw can penetrates into an object to be fixed in a labor-saving mode. Due to the fact that the reinforcing ribs are arranged on the screw cap, the semicircular self-tapping screw will not be damaged or fractures when large force acts on the semicircular self-tapping screw.
Description
Technical field
The utility model relates to a kind of fastening piece, particularly a kind of semicircle tapping screw.
Background technique
Screw is a class fastening piece that is made of head and screw rod two-part, can be divided three classes by purposes: machine screw, Cock screw and specific use screw, machine screw is mainly used in the part of a clamp screw pit, and being fastenedly connected between part that has a through hole, (this Connecting format is called screw and connects, and also belongs to removably connect not need the nut cooperation; Also can cooperate with nut, be used for being fastenedly connected between two parts that have a through hole.) Cock screw is mainly used in fixing two relative positions between the part, the specific use screw for example has lifting bolt etc. to use for the lifting part.
Screw commonly used is when fixed object, and is relatively harder, and at needs very energetically the time, screw is easier to fracture, and working life is shorter, causes often changing screw, has increased cost greatly.
Summary of the invention
For addressing the above problem, the utility model discloses a kind of semicircle tapping screw, the setting of Thread Forming TF makes screw more laborsavingly go deep into fixing object, and stiffening rib is arranged on the screw cap, when purpose makes screw be subjected to bigger power, is unlikely damaged fracture.
The utility model provides a kind of semicircle tapping screw, comprise screw cap, screw rod, and be arranged on link between described screw cap and the screw rod, and described screw cap semicircular in shape, the screw rod lower end is provided with screw head, be provided with Thread Forming TF in described screw rod outer rim, described screw cap surface is provided with stiffening rib, and described stiffening rib is arranged in parallel, and described screw cap upper end is provided with groove, described groove is rectangular, and the degree of depth of groove is 3-7mm.The purpose of this utility model designs a kind of semicircle tapping screw, the setting of Thread Forming TF, make screw can more laborsavingly go deep into fixing object, stiffening rib is arranged on the screw cap, when purpose makes screw be subjected to bigger power, be unlikely damaged fracture, this model utility is simple in structure, easy to use, and long service life.
The utility model discloses a kind of a kind of improvement of semicircle tapping screw, the length of described link is 1/3rd of described spiro rod length.This improved purpose guarantees the soundness of screw, prolongs its working life, and such design, and materials consumption more economizes.
The utility model discloses a kind of a kind of improvement of semicircle tapping screw, described groove is cross recess or straight groove.This improvement groove is set to cross recess or straight groove, makes things convenient for instrument to turn bolt.
The purpose of this utility model designs a kind of semicircle tapping screw, the setting of Thread Forming TF, make screw can more laborsavingly go deep into fixing object, stiffening rib is arranged on the screw cap, when purpose makes screw be subjected to bigger power, be unlikely damaged fracture, this model utility is simple in structure, easy to use, and long service life.
Description of drawings
Fig. 1, be a kind of structural representation of semicircle tapping screw.
Reference numerals list:
1, screw cap;
2, link;
3, screw rod;
4, screw head;
5, Thread Forming TF;
6, stiffening rib;
7, groove.
Embodiment
Below in conjunction with the drawings and specific embodiments, further illustrate the utility model, should understand following embodiment and only be used for explanation the utility model and be not used in restriction scope of the present utility model.Need to prove, word " preceding ", " back ", " left side ", " right side ", the "up" and "down" used are described below refer to the direction in the accompanying drawing, word " interior " and " outward " refer to respectively towards or away from the direction of specific features geometrical center.
Embodiment 1:
As shown in Figure 1, the utility model provides a kind of semicircle tapping screw, comprises screw cap 1, screw rod 3, and is arranged on the link 2 between described screw cap 1 and the screw rod 3, described screw cap 1 semicircular in shape, screw rod 3 lower ends are provided with screw head 4, are provided with Thread Forming TF 5 in described screw rod 3 outer rims, and described screw cap 1 surface is provided with stiffening rib 6, described stiffening rib 6 is arranged in parallel, described screw cap 1 upper end is provided with groove 7, and described groove 7 is rectangular, and the degree of depth of groove 7 is 5mm.The purpose of this utility model designs a kind of semicircle tapping screw, the setting of Thread Forming TF, make screw can more laborsavingly go deep into fixing object, stiffening rib is arranged on the screw cap, when purpose makes screw be subjected to bigger power, be unlikely damaged fracture, this model utility is simple in structure, easy to use, and long service life.
Embodiment 2:
Embodiment's 1 described a kind of semicircle tapping screw, the length of described link 2 is 1/3rd of described screw rod 3 length.This improved purpose guarantees the soundness of screw, prolongs its working life, and such design, and materials consumption more economizes.
Embodiment 3:
Embodiment's 1 described a kind of semicircle tapping screw, described groove 7 is cross recess or straight groove.This improvement groove is set to cross recess or straight groove, makes things convenient for instrument to turn bolt.
The purpose of this utility model designs a kind of semicircle tapping screw, the setting of Thread Forming TF, make screw can more laborsavingly go deep into fixing object, stiffening rib is arranged on the screw cap, when purpose makes screw be subjected to bigger power, be unlikely damaged fracture, this model utility is simple in structure, easy to use, and long service life.
The above; it only is preferred embodiment of the present utility model; be not to be the restriction of the utility model being made any other form, and according to any modification or equivalent variations that technical spirit of the present utility model is done, still belong to the utility model scope required for protection.
Claims (3)
1. semicircle tapping screw, it is characterized in that: comprise screw cap (1), screw rod (3), and be arranged on link (2) between described screw cap (1) and the screw rod (3), described screw cap (1) semicircular in shape, screw rod (3) lower end is provided with screw head (4), be provided with Thread Forming TF (5) in described screw rod (3) outer rim, described screw cap (1) surface is provided with stiffening rib (6), described stiffening rib (6) is arranged in parallel, described screw cap (1) upper end is provided with groove (7), described groove (7) is rectangular, and the degree of depth of groove (7) is 3-7mm.
2. a kind of semicircle tapping screw according to claim 1, it is characterized in that: the length of described link (2) is 1/3rd of described screw rod (3) length.
3. a kind of semicircle tapping screw according to claim 1, it is characterized in that: described groove (7) is cross recess or straight groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320154177 CN203201939U (en) | 2013-04-01 | 2013-04-01 | Semicircular self-tapping screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320154177 CN203201939U (en) | 2013-04-01 | 2013-04-01 | Semicircular self-tapping screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203201939U true CN203201939U (en) | 2013-09-18 |
Family
ID=49146050
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320154177 Expired - Fee Related CN203201939U (en) | 2013-04-01 | 2013-04-01 | Semicircular self-tapping screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203201939U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103893836A (en) * | 2014-04-01 | 2014-07-02 | 浙江大学 | Screw capable of absorbing compound interface and manufacturing method of screw |
| CN104632831A (en) * | 2014-11-10 | 2015-05-20 | 无锡市天力五金弹簧厂 | Spring combined screw |
-
2013
- 2013-04-01 CN CN 201320154177 patent/CN203201939U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103893836A (en) * | 2014-04-01 | 2014-07-02 | 浙江大学 | Screw capable of absorbing compound interface and manufacturing method of screw |
| CN103893836B (en) * | 2014-04-01 | 2016-01-27 | 浙江大学 | A kind of screw of Absorbable rod compound interface and preparation method |
| CN104632831A (en) * | 2014-11-10 | 2015-05-20 | 无锡市天力五金弹簧厂 | Spring combined screw |
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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: 20130918 Termination date: 20140401 |