CN201714808U - Square partial-thread bolt device - Google Patents
Square partial-thread bolt device Download PDFInfo
- Publication number
- CN201714808U CN201714808U CN2010201753918U CN201020175391U CN201714808U CN 201714808 U CN201714808 U CN 201714808U CN 2010201753918 U CN2010201753918 U CN 2010201753918U CN 201020175391 U CN201020175391 U CN 201020175391U CN 201714808 U CN201714808 U CN 201714808U
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- CN
- China
- Prior art keywords
- nut
- screw
- bolt
- groove
- thread
- 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 square partial-thread bolt device, which comprises a bolt and a nut matching with the same. The bolt is a square head bolt, the nut is a square head nut, a screw of the bolt consists of a threaded section with thread and a non-threaded section, the threaded section is close to the end surface of the tail of the screw, at least one groove extending along the axial direction of the screw is arranged on the threaded section, at least one screw hole is arranged on the side wall of the nut, and a locking screw matching with the groove and positioning the nut is arranged in the screw hole. When in actual use, the locking screw is screwed into the screw hole on the side wall of the nut after the bolt is screwed with the nut, and the tail end of the locking screw is abutted against the groove on the bolt. The nut can not rotate vertically regardless of any application occasions, so that the nut can not be loosened or fall off.
Description
Technical field:
The utility model relates to fastener areas, relates in particular to a kind of four jiaos of partial thread bolt devices.
Background technique:
The conventional bolt device comprises screw bolt and nut, should use occasion at some, bolt device is to play the effect that two parts are fastenedly connected, at this moment only screw bolt and nut need be matched to tighten and get final product, and in some other occasion, also may need certain clearance between two parts that bolt device connects, so that the circumferential rotation between two parts, but no matter be in above-mentioned which kind of occasion, after matching, screw bolt and nut all require the invariant position of nut just can be implemented in application target in each occasion, and in the actual using process, the nut in traditional bolt device can take place loosening mostly or come off, and is difficult to satisfy the actual requirement of using.
The model utility content:
For solving above-mentioned technical problem, the utility model provides the difficult four jiaos of partial thread bolt devices that become flexible or come off of nut in a kind of actual using process.
The technical solution of the utility model is, a kind of four jiaos of partial thread bolt devices with following structure are provided, it comprises bolt and the nut that matches with it, described bolt is four angle head bolts, described nut is a tetragonal nut, the screw rod of described bolt is made up of thread section that is provided with screw thread and polished rod section, and described thread section is near the tail end face of screw rod; Described thread section is provided with at least one groove that extends along screw axial, and the sidewall of described nut is provided with at least one screw, and being provided with in the described screw matches with groove merges backing-up screw with the nut location.
As improvement, the end face of the axial through bolt afterbody of described groove.
As further improvement, the groove on the described screw rod is two, and described two grooves are symmetrical arranged along the axis of screw rod, and described screw also is two and is symmetrical arranged along the axis of screw that described backing-up screw is two.
After adopting said structure, the utlity model has following advantage:
Thread section at four jiaos of common partial thread bolts is provided with groove, and the sidewall of the nut that matches with it is provided with screw, when reality is used, after screw bolt and nut screws, again backing-up screw is screwed in the screw of nut sidewall and the end of screw is against in the groove on the bolt.Like this, no matter be to use in the sort of occasion, nut all can not rotate up and down, also just problem can not take place or come off etc. loosening, and the end face of the axial through bolt afterbody of groove is for ease of processing.And the groove on the bolt is two, and is symmetrical arranged along the axis of screw, and is corresponding, the screw of nut sidewall and backing-up screw are two all just also, groove and screw are evenly distributed, and both can guarantee the intensity of screw bolt and nut, can make backing-up screw comparatively reasonable to the location of nut again.
Description of drawings:
The schematic representation that Fig. 1 matches for the utility model screw bolt and nut;
Fig. 2 is the plan structure schematic representation of nut of the present utility model;
Fig. 3 is the plan structure schematic representation of bolt of the present utility model;
Fig. 4 is the structural representation of backing-up screw of the present utility model;
Shown in the figure 1, bolt; 2, nut; 3, screw rod; 3.1, thread section; 3.2, the polished rod section; 4, backing-up screw; 5, groove; 6, screw.
Embodiment:
The utility model is described in further detail below in conjunction with drawings and the specific embodiments.
As Fig. 1, Fig. 2, Fig. 3, shown in Figure 4, four jiaos of partial thread bolt devices of the utility model, the nut 2 that it comprises bolt 1 and matches with it.
Described bolt 1 is four angle head bolts, the head that is bolt 1 is the square cylinder, described nut 2 is a tetragonal nut, the main body of nut 2 also is the square cylinder, the screw rod 3 of described bolt 1 is made up of thread section 3.1 that is provided with screw thread and polished rod section 3.2, and described thread section is near the tail end face of screw rod 3; Described thread section 3.1 is provided with two along screw rod 3 axially extended grooves 5, the sidewall of described nut 2 is provided with two screws 6, described screw 6 is to connect with the center hole of nut 2, and being provided with in the described screw 6 matches with groove 5 merges backing-up screw 4 with nut 2 location.
For ease of manufacturing, described groove 5 is the end face of axial through bolt 1 afterbody preferably, and the length of groove 5 can be according to the use condition setting of reality.As preferred version, the groove 5 on the described screw rod 3 is two, and described two grooves 5 are symmetrical arranged along the axis of screw rod 3, and described screw 6 also is two and is symmetrical arranged along the axis of nut 2 that described backing-up screw 4 is two.
Claims (3)
1. four jiaos of partial thread bolt devices, the nut (2) that it comprises bolt (1) and matches with it, it is characterized in that: described bolt (1) is four angle head bolts, described nut (2) is a tetragonal nut, the screw rod (3) of described bolt (1) is made up of thread section that is provided with screw thread (3.1) and polished rod section (3.2), and described thread section is near the tail end face of screw rod (3); Described thread section (3.1) is provided with at least one along the axially extended groove of screw rod (3) (5), the sidewall of described nut (2) is provided with at least one screw (6), and being provided with in the described screw (6) matches with groove (5) merges backing-up screw (4) with nut (2) location.
2. four jiaos of partial thread bolt devices according to claim 1 is characterized in that: described groove (5) is the end face of through bolt (1) afterbody axially.
3. four jiaos of partial thread bolt devices according to claim 1 and 2, it is characterized in that: the groove (5) on the described screw rod (3) is two, described two grooves (5) are symmetrical arranged along the axis of screw rod (3), described screw (6) also is two and is symmetrical arranged along the axis of nut (2) that described backing-up screw (4) is two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201753918U CN201714808U (en) | 2010-04-26 | 2010-04-26 | Square partial-thread bolt device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201753918U CN201714808U (en) | 2010-04-26 | 2010-04-26 | Square partial-thread bolt device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201714808U true CN201714808U (en) | 2011-01-19 |
Family
ID=43460804
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201753918U Expired - Fee Related CN201714808U (en) | 2010-04-26 | 2010-04-26 | Square partial-thread bolt device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201714808U (en) |
-
2010
- 2010-04-26 CN CN2010201753918U patent/CN201714808U/en not_active Expired - Fee Related
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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: 20110119 Termination date: 20110426 |