CN203201946U - Dowel screw - Google Patents
Dowel screw Download PDFInfo
- Publication number
- CN203201946U CN203201946U CN 201320166003 CN201320166003U CN203201946U CN 203201946 U CN203201946 U CN 203201946U CN 201320166003 CN201320166003 CN 201320166003 CN 201320166003 U CN201320166003 U CN 201320166003U CN 203201946 U CN203201946 U CN 203201946U
- Authority
- CN
- China
- Prior art keywords
- screw
- groove
- dowel
- utility
- stiffening rib
- 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 provides a dowel screw, which comprises a screw cap and a threaded rod, wherein the threaded rod is arranged on the lower end of the screw cap; a groove is arranged above the screw cap and is triangular; the threaded rod is provided with reinforcing ribs; interval between the reinforcing ribs are equal; and the lower end of the threaded rod is provided with two screw heads. The utility model aims to provide the dowel screw, and the screw is firmer and more durable in use due to the reinforcing ribs. When the first screw head is damaged, the second screw head can be continuously used, the service life of the screw is prolonged, and the dowel screw has the advantages of convenience in use and time and labor saving.
Description
Technical field
The utility model relates to a kind of fastening piece, particularly a kind of dowel 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.
When the screw fixed object, generally need bigger power, in case strength is excessive, usually cause the fracture of screw head, cause screw to be scrapped, waste material, and inefficiency.
Summary of the invention
For addressing the above problem, the utility model discloses a kind of dowel screw, the setting of stiffening rib makes screw firm and durable more, when first screw head is damaged, second screw head can continue to use, and prolonged the working life of screw, and easy to use, time saving and energy saving.
The utility model provides a kind of dowel screw, comprise screw cap, screw rod, described screw rod is arranged on described screw cap lower end, above described screw cap, be provided with groove, described groove is triangular in shape, is provided with stiffening rib at described screw rod, and described stiffening rib equates at interval, described screw rod lower end is provided with screw head, and described screw head is two.The purpose of this utility model designs a kind of dowel screw, and the setting of stiffening rib makes screw firm and durable more, when first screw head is damaged, second screw head can continue to use, prolonged the working life of screw, and easy to use, time saving and energy saving, groove the screw of conveniently back-outing is set.
The utility model discloses a kind of a kind of improvement of dowel screw, described groove is cross recess or straight groove, and the degree of depth of described groove is 3-5mm.This improvement groove is set to cross recess or straight groove, makes things convenient for instrument to turn bolt, and the degree of depth of groove is 4mm, and effect is best, turns to such an extent that instrument can not skid.
The utility model discloses a kind of a kind of improvement of dowel screw, the thickness of described stiffening rib is 3-8mm.The thickness of the utility model stiffening rib is blocked up, waste material, and the thickness of stiffening rib is thin excessively, and screw does not have the effect of firm and durable, and the thickness of stiffening rib is 6mm after tested, and effect is better.
The purpose of this utility model designs a kind of dowel screw, and the setting of stiffening rib makes screw firm and durable more, when first screw head is damaged, second screw head can continue to use, prolonged the working life of screw, and easy to use, time saving and energy saving, groove the screw of conveniently back-outing is set.
Description of drawings
Fig. 1, be a kind of structural representation of dowel screw.
Reference numerals list:
11, screw cap;
21, screw rod;
31, screw head;
41, stiffening rib;
51, 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 dowel screw, comprise screw cap 11, screw rod 21, described screw rod 21 is arranged on described screw cap 11 lower ends, is provided with groove 51 above described screw cap 11, and described groove 51 is triangular in shape, be provided with stiffening rib 41 at described screw rod 21, described stiffening rib 41 equates that at interval described screw rod 21 lower ends are provided with screw head 31, and described screw head 31 is two.The purpose of this utility model designs a kind of dowel screw, and the setting of stiffening rib makes screw firm and durable more, when first screw head is damaged, second screw head can continue to use, prolonged the working life of screw, and easy to use, time saving and energy saving, groove the screw of conveniently back-outing is set.
Embodiment 2:
Embodiment's 1 described a kind of dowel screw, described groove 51 is cross recess or straight groove, the degree of depth of described groove 51 is 3-5mm.This improvement groove is set to cross recess or straight groove, makes things convenient for instrument to turn bolt, and the degree of depth of groove is 4mm, and effect is best, turns to such an extent that instrument can not skid.
Embodiment 3:
Embodiment's 1 described a kind of dowel screw, the thickness of described stiffening rib 41 is 3-8mm.The thickness of the utility model stiffening rib is blocked up, waste material, and the thickness of stiffening rib is thin excessively, and screw does not have the effect of firm and durable, and the thickness of stiffening rib is 6mm after tested, and effect is better.
The purpose of this utility model designs a kind of dowel screw, and the setting of stiffening rib makes screw firm and durable more, when first screw head is damaged, second screw head can continue to use, prolonged the working life of screw, and easy to use, time saving and energy saving, groove the screw of conveniently back-outing is set.
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. dowel screw, it is characterized in that: comprise screw cap (11), screw rod (21), described screw rod (21) is arranged on described screw cap (11) lower end, be provided with groove (51) in described screw cap (11) top, described groove (51) is triangular in shape, is provided with stiffening rib (41) at described screw rod (21), and described stiffening rib (41) equates at interval, described screw rod (21) lower end is provided with screw head (31), and described screw head (31) is two.
2. a kind of dowel screw according to claim 1, it is characterized in that: described groove (51) is cross recess or straight groove, and the degree of depth of described groove (51) is 3-5mm.
3. a kind of dowel screw according to claim 1, it is characterized in that: the thickness of described stiffening rib (41) is 3-8mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320166003 CN203201946U (en) | 2013-04-07 | 2013-04-07 | Dowel screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320166003 CN203201946U (en) | 2013-04-07 | 2013-04-07 | Dowel screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203201946U true CN203201946U (en) | 2013-09-18 |
Family
ID=49146057
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320166003 Expired - Fee Related CN203201946U (en) | 2013-04-07 | 2013-04-07 | Dowel screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203201946U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104006055A (en) * | 2014-06-05 | 2014-08-27 | 常州市南飞机械有限公司 | Multifunctional convenient screw |
-
2013
- 2013-04-07 CN CN 201320166003 patent/CN203201946U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104006055A (en) * | 2014-06-05 | 2014-08-27 | 常州市南飞机械有限公司 | Multifunctional convenient 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: 20140407 |