CN201884429U - Positioning bolt at free end of screw - Google Patents
Positioning bolt at free end of screw Download PDFInfo
- Publication number
- CN201884429U CN201884429U CN2010206846938U CN201020684693U CN201884429U CN 201884429 U CN201884429 U CN 201884429U CN 2010206846938 U CN2010206846938 U CN 2010206846938U CN 201020684693 U CN201020684693 U CN 201020684693U CN 201884429 U CN201884429 U CN 201884429U
- Authority
- CN
- China
- Prior art keywords
- free end
- screw rod
- screw
- bolt
- polygonal
- 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 a positioning bolt at the free end of a screw, which comprises a bolt head and the screw connected with the bolt head as one body; and the free end of the screw is provided with a positioning structure. The positioning structure is a horizontal line-shaped or cross-shaped groove arranged on the outer end surface of the free end of the screw, or is a polygonal prim lengthening section that is connected with the thread of the free end of the screw as one body, or an internal threaded hole or polygonal prim hole that is indented and arranged on the outer end surface of the free end of the screw. When the positioning bolt is adopted for fastening, the free end of the screw can be positioned by the bolt and nut assembly to ensure that the screw can not rotate, so that the nut can be smoothly screwed tightly.
Description
Technical field
The utility model relates to a kind of screw rod free end holding down bolt.
Background technique
On the mechanical structure since a variety of causes bolt can't be located when causing bolt to be installed, bolt is followed rotation when causing the spanner fastening nut, can't satisfy connection request, when the stress that is fastenedly connected is had relatively high expectations, bolt is followed nut and is often together rotated and bring certain potential safety hazard to installation, therefore, invent a kind of bolt that can locate, can address this problem.
The model utility content
The purpose of this utility model is to provide a kind of screw rod free end holding down bolt, is taking bolt and nut component to carry out when fastening, can the free end location of screw rod can not rotate screw rod, thereby nut can be screwed smoothly.
In order to realize the purpose of this utility model, the technical solution adopted in the utility model is:
A kind of screw rod free end holding down bolt comprises bolt head and the screw rod that is connected as a single entity with bolt head, and the free end of described screw rod has position structure.
Described position structure is in-line or the criss-cross groove that is arranged at the free end exterior edge face of screw rod.
The prismatic lengthening section of polygonal that described position structure is connected as a single entity for the free-ended screw thread with screw rod.
Described position structure is interior threaded hole or the prismatic hole of polygonal that is arranged at the indent of screw rod free end exterior edge face.
The beneficial effects of the utility model are:
Taking bolt and nut component to carry out when fastening, can the free end location of screw rod can not rotate screw rod, thereby nut can be screwed smoothly.
Description of drawings
Fig. 1 is one of structural representation of the present utility model.
Fig. 2 is two of a structural representation of the present utility model.
Fig. 3 is three of a structural representation of the present utility model.
1 is bolt head, and 2 is screw rod, 3 grooves, and 4 is the prismatic lengthening section of polygonal, 5 is the prismatic hole of polygonal.
Embodiment
Below in conjunction with drawings and Examples the utility model is further specified:
Embodiment one: referring to Fig. 1.A kind of screw rod free end holding down bolt comprises bolt head 1 and the screw rod 2 that is connected as a single entity with bolt head 1, and the free end of described screw rod 2 has position structure.
The position structure of present embodiment is the in-line groove 3 that is arranged at the free end exterior edge face of screw rod 2, can insert groove 3 when screwing with the cutter head of Flathead screwdriver with screw rod 2 location, and screw rod 2 can together not rotate when screwing.Groove 3 also can be cross, is used with Philips screwdriver.
Embodiment two: referring to Fig. 2.Do not give unnecessary details with embodiment one something in common, difference only is the prismatic lengthening section 4 of polygonal that the position structure in the present embodiment is connected as a single entity for the free-ended screw thread with screw rod 2, the casing pipe sleeve that the outer surface of the prismatic lengthening section 4 of polygonal can be complementary is contained on the prismatic lengthening section 4 of polygonal, can realize the location equally.
Embodiment three: referring to Fig. 3.Do not give unnecessary details with embodiment one something in common, difference only is that the position structure in the present embodiment is interior threaded hole or the prismatic hole 5 of polygonal that is arranged at the indent of screw rod 2 free end exterior edge faces, the lever that will have the plug that is complementary with the interior threaded hole of indent or the prismatic hole 5 of polygonal screws in interior threaded hole or the prismatic hole 5 of polygonal, can realize the location.
Claims (4)
1. screw rod free end holding down bolt, comprise bolt head (1) and with the screw rod (2) that bolt head (1) is connected as a single entity, it is characterized in that: the free end of described screw rod (2) has position structure.
2. screw rod free end holding down bolt according to claim 1 is characterized in that: described position structure is for being arranged at the in-line or the criss-cross groove (3) of screw rod (2) free end exterior edge face.
3. screw rod free end holding down bolt according to claim 1 is characterized in that: the prismatic lengthening section (4) of polygonal that described position structure is connected as a single entity for the free-ended screw thread with screw rod (2).
4. screw rod free end holding down bolt according to claim 1 is characterized in that: described position structure is interior threaded hole or the prismatic hole (5) of polygonal that is arranged at the indent of screw rod (2) free end exterior edge face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206846938U CN201884429U (en) | 2010-12-28 | 2010-12-28 | Positioning bolt at free end of screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206846938U CN201884429U (en) | 2010-12-28 | 2010-12-28 | Positioning bolt at free end of screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201884429U true CN201884429U (en) | 2011-06-29 |
Family
ID=44181969
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206846938U Expired - Fee Related CN201884429U (en) | 2010-12-28 | 2010-12-28 | Positioning bolt at free end of screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201884429U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103128491A (en) * | 2011-11-24 | 2013-06-05 | 苏州工业园区协诚精密五金有限公司 | Preparation technology of bolt |
-
2010
- 2010-12-28 CN CN2010206846938U patent/CN201884429U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103128491A (en) * | 2011-11-24 | 2013-06-05 | 苏州工业园区协诚精密五金有限公司 | Preparation technology of bolt |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110629 Termination date: 20171228 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |