CN210265458U - Micro-precision self-locking screw - Google Patents
Micro-precision self-locking screw Download PDFInfo
- Publication number
- CN210265458U CN210265458U CN201920945633.8U CN201920945633U CN210265458U CN 210265458 U CN210265458 U CN 210265458U CN 201920945633 U CN201920945633 U CN 201920945633U CN 210265458 U CN210265458 U CN 210265458U
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- CN
- China
- Prior art keywords
- screw
- screw rod
- self
- hole
- tapping
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- 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 discloses a little smart self-locking screw includes tapping portion, screw thread head, and little smart self-locking screw is provided with the through-hole, and the through-hole has passed the screw rod, and tapping portion comprises two or the unit block more than two, and the unit block is kept away from the one end of screw rod articulates on the screw rod, when tapping portion is in auto-lock state the unit block expandes to support on the terminal surface of treating the predetermineeing the mounting hole of connecting piece. Utilize the screw thread portion of screw to realize the threaded connection with the connecting piece, then through twisting the position of joining in marriage soon that rotatory screw head drove the relative screw portion of screw rod in the time of realizing the auto-lock, thereby change the relative position of tapping portion and screw thread portion, after screw thread portion selects preset position, control screw rod realizes that tapping portion keeps away from screw thread portion, because tapping portion articulates on the screw rod, thereby constitute two or more than two unit blocks of tapping portion and expand to support on the terminal surface of treating the preset mounting hole of connecting piece, thereby realize the lock solid each other of screw and connecting piece.
Description
Technical Field
The utility model relates to a little smart self-locking screw especially relates to a little smart self-locking screw with self-locking function, joint strength are high.
Background
The screw is as fields such as standard part wide application machinery, heavy industry, equipment, and the screw mainly plays a connection fixed effect, mainly realizes the reliable connection of connecting piece, the utility model discloses the application is mainly focused on the locking problem of auto-lock of small connecting piece, and the screw portion that mainly utilizes the screw currently carries out screw-thread fit with the connecting piece and realizes the fastening of connecting piece, but this kind of connection condition can have not hard up condition under the vibrations operating mode condition.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a little smart self-locking screw is provided, have the characteristics that have self-locking function, joint strength are high.
In order to solve the technical problem, the utility model adopts the technical scheme that: the utility model provides a little smart self-locking screw which innovation point lies in: the fine self-locking screw that declines includes tapping portion, screw thread portion, with the screw thread portion that screw thread portion links to each other, be provided with the through-hole on the fine self-locking screw along fine self-locking screw axial direction a little, the central axis of through-hole coincides with the central axis of fine self-locking screw a little, be close to in the through-hole the one end of screw thread portion is provided with the internal thread, the through-hole pass have with internal thread screw-thread fit's screw rod, be close to on the screw rod one of screw thread portion is served and is provided with screw rod head, keep away from on the screw rod the one end of screw rod head articulates in the tapping portion, the tapping portion is kept away from by the unit block group more than two or two, and the unit block is kept away from the one end of screw rod articulates on the.
Preferably, the tapping portion is pyramid-shaped or cylindrical when not unfolded.
Preferably, the screw head is provided with an accommodating cavity for accommodating the screw head.
Preferably, an anti-expansion sleeve is arranged between the screw and the through hole.
The utility model has the advantages that: through adopting above-mentioned structure, the threaded connection of screw portion realization and connecting piece that utilizes the screw, then through twisting the rotatory screw head portion of moving the position of joining in marriage soon of the relative screw portion of screw rod in the time of realizing the auto-lock, thereby change the relative position of tapping portion and screw portion, after screw portion selects preset position, control screw rod realizes that tapping portion keeps away from screw portion, because tapping portion articulates on the screw rod, thereby two or more than two unit blocks that constitute tapping portion expand to support on the terminal surface of treating the preset mounting hole of connecting piece, thereby realize the lock solid each other of screw and connecting piece.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a schematic structural view of a micro-precision self-locking screw of the present invention.
In the figure: 1-tapping part, 2-thread part, 3-thread head part, 4-through hole, 5-screw head part, 6-to-be-connected piece, 7-preset mounting hole, 8-anti-expansion sleeve and 9-screw.
Detailed Description
The utility model discloses a little smart self-locking screw includes tapping portion 1, screw thread portion 2, the screw thread head 3 that links to each other with screw thread portion 2, be provided with through-hole 4 on the little smart self-locking screw along little smart self-locking screw axial direction on the little smart self-locking screw, the central axis of through-hole 4 and the central axis coincidence of little smart self-locking screw, the one end that is close to screw thread head 3 in the through-hole 4 is provided with the internal thread, through-hole 4 has passed and has served with internal thread screw-thread fit's screw rod 9, be close to screw thread head 3 on the screw rod and serve and be provided with screw head 5, the one end of keeping away from screw head 5 on the screw rod articulates on tapping portion 1, tapping portion 1 comprises two or more than two unit blocks, the one end that the screw rod was kept away from to the. Through adopting above-mentioned structure, the threaded connection with the connecting piece is realized to screw portion 2 that utilizes the screw, then move rotatory screw head 5 through twisting when realizing the auto-lock and drive the position of joining in marriage soon of the relative screw portion of screw rod, thereby change tapping portion 1 and screw portion 2's relative position, after screw portion 2 selected into preset position, control screw realizes tapping portion 1 and keeps away from screw portion 2, because tapping portion 1 articulates on the screw rod, thereby two or more than two cell blocks that constitute tapping portion 1 expand to support on the terminal surface of treating the preset mounting hole 7 of connecting piece 6, thereby realize the lock solid each other of screw and connecting piece.
For the convenience of production and assembly, the tapping portion 1 is pyramid-shaped or cylindrical when not unfolded. In order to make the screw head into a countersunk head form, the screw head 3 is provided with an accommodating cavity for the screw head 5 to be placed in, so that the screw head has the functions of attractive appearance and scratch prevention. In order to ensure the coaxiality of the screw and the through hole 4 and prevent the screw from excessively stressed deformation, an anti-expansion sleeve 8 is arranged between the screw and the through hole 4.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the technical solutions, and those skilled in the art should understand that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all the modifications and equivalent substitutions should be covered by the claims of the present invention.
Claims (4)
1. The utility model provides a little smart self-locking screw which characterized in that: the fine self-locking screw that declines includes tapping portion, screw thread portion, with the screw thread portion that screw thread portion links to each other, be provided with the through-hole on the fine self-locking screw along fine self-locking screw axial direction a little, the central axis of through-hole coincides with the central axis of fine self-locking screw a little, be close to in the through-hole the one end of screw thread portion is provided with the internal thread, the through-hole pass have with internal thread screw-thread fit's screw rod, be close to on the screw rod one of screw thread portion is served and is provided with screw rod head, keep away from on the screw rod the one end of screw rod head articulates in the tapping portion, the tapping portion is kept away from by the unit block group more than two or two, and the unit block is kept away from the one end of screw rod articulates on the.
2. The self-locking screw of claim 1, wherein: the tapping part is in a pyramid shape or a cylinder shape when not unfolded.
3. The self-locking screw of claim 1, wherein: and the threaded head part is provided with an accommodating cavity for placing the screw head part.
4. The self-locking screw of claim 1, wherein: an anti-expansion sleeve is arranged between the screw rod and the through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920945633.8U CN210265458U (en) | 2019-06-22 | 2019-06-22 | Micro-precision self-locking screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920945633.8U CN210265458U (en) | 2019-06-22 | 2019-06-22 | Micro-precision self-locking screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210265458U true CN210265458U (en) | 2020-04-07 |
Family
ID=70044133
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920945633.8U Expired - Fee Related CN210265458U (en) | 2019-06-22 | 2019-06-22 | Micro-precision self-locking screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210265458U (en) |
-
2019
- 2019-06-22 CN CN201920945633.8U patent/CN210265458U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200407 |