CN115217833A - Screw with coaxial butt joint function - Google Patents
Screw with coaxial butt joint function Download PDFInfo
- Publication number
- CN115217833A CN115217833A CN202210985214.3A CN202210985214A CN115217833A CN 115217833 A CN115217833 A CN 115217833A CN 202210985214 A CN202210985214 A CN 202210985214A CN 115217833 A CN115217833 A CN 115217833A
- Authority
- CN
- China
- Prior art keywords
- cap head
- screw
- taper
- central positioning
- positioning recess
- 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.)
- Pending
Links
- 230000008407 joint function Effects 0.000 title claims abstract description 8
- 238000005452 bending Methods 0.000 claims description 2
- 210000001503 joint Anatomy 0.000 abstract description 2
- 230000002441 reversible effect Effects 0.000 abstract description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B35/00—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
Abstract
A screw with coaxial butt joint function features that the cap head or drive slot with taper or central locating recess is matched with the sleeve or drive tooth or central locating axle head with same taper, so realizing reversible coaxial butt joint between screw and drive tool. It includes the screw trunk, the cap head, and the drive groove, the central point is fixed a position the cave, its characterized in that: it also includes a tapered sidewall; the cap head is positioned at the top end of the screw trunk, is coaxial with and connected with the screw trunk into a whole, the driving slot is positioned at the end part of the cap head and is rotationally symmetrical with the center of the cap head, the central positioning recess is positioned at the center of the end surface of the cap head and extends towards the screw trunk, the taper side wall is positioned on the side surface of the cap head or the driving groove or the central positioning recess and is integrated with the cap head or the driving groove or the central positioning recess, and the taper and the depth of the taper side wall are set within the technical requirement range of meeting the connection strength and the manual plugging flexibility.
Description
1. Field of the invention
The invention relates to the field of fasteners, in particular to screws.
2. Background of the invention
The end of the screw commonly used in the market at present has a straight groove, a cross groove, an outer hexagon, an inner hexagon and the like, and the common defect is that when a driver such as a screwdriver or a wrench and the like screws or unscrews the screw, because of relatively large gaps, good coaxiality cannot be ensured, so that the stress surface is inclined and the like, the screw and the driver are difficult to position and fix, the screw is inclined, abraded, slipped, dropped and the like, and the engineering quality, the construction efficiency and the service life of the tool are directly influenced.
3. Technical solution
The invention provides a screw with coaxial butt joint function, which adopts the corresponding nesting between a cap head or a driving groove or a central positioning recess with a taper and a sleeve or a driving tooth or a central positioning shaft head with the same taper, so that no redundant gap exists between the side walls of the cap head or the driving groove or the central positioning recess and the sleeve or the driving tooth or the central positioning shaft head with the same taper, and the reversible coaxial butt joint between the screw and a driving tool is realized, therefore, the phenomena of deflection, abrasion, slippage, falling off and the like of the screw can not occur.
In order to achieve the purpose, the technical scheme of the invention is as follows: the utility model provides a screw with coaxial butt joint function, it includes the screw trunk, the cap head, the drive groove, the central locating recess, its characterized in that: it also includes a tapered sidewall; the cap head is positioned at the top end of the screw trunk, is coaxial with and connected with the screw trunk into a whole, the driving slot is positioned at the end part of the cap head and is rotationally symmetrical with the center of the cap head, the central positioning recess is positioned at the center of the end surface of the cap head and extends towards the screw trunk, the taper side wall is positioned on the side surface of the cap head or the driving groove or the central positioning recess and is integrated with the cap head or the driving groove or the central positioning recess, and the taper and the depth of the taper side wall are set within the technical requirement range of meeting the connection strength and the manual plugging flexibility.
4. Description of the drawings
Fig. 1 is a schematic view of the position of a screw having a coaxial butt joint function in an elevation view.
5. Detailed description of the preferred embodiments
Embodiments of the invention are described in further detail below with reference to the accompanying drawings: the utility model provides a screw with coaxial butt joint function, it includes screw trunk (1), cap (2), drive groove (3), central positioning pocket (4), its characterized in that: it also comprises a tapered side wall (5); the cap head (2) is positioned at the top end of the screw main body (1), is coaxial with the screw main body (1) and is connected into a whole, the driving groove (3) is positioned at the end part of the cap head (2), and forms rotational symmetry with the center of the cap head (2), the central positioning recess (4) is positioned at the center of the end surface of the cap head (2) and extends towards the screw main body (1), the taper side wall (5) is positioned at the side surface of the cap head (2) or the driving groove (3) or the central positioning recess (4) and forms an integral body with the cap head (2) or the driving groove (3) or the central positioning recess (4), and the taper and the depth of the taper must meet the technical requirement range of the bending strength of connection and the flexibility of manual plugging and unplugging at the same time.
When the tool is in work, the corresponding sleeves or driving teeth with the same taper or central positioning shaft heads on the driving tool are aligned with the cap head (2) or the driving groove (3) or the central positioning recess (4) of the screw, then the sleeves or the driving teeth or the central positioning shaft heads are mutually inserted and pressed in place until the side surfaces are completely contacted and attached to form no redundant gap, the driving tool is rotated clockwise, the screw can be screwed, and if the driving tool is rotated anticlockwise, the screw can be unscrewed or taken out. When the driving tool is pulled out in the opposite direction of the pressing force, the mutual separation can be realized.
Claims (1)
1. The utility model provides a screw with coaxial butt joint function, it includes screw trunk (1), cap (2), drive groove (3), central positioning pocket (4), its characterized in that: it also comprises a tapered side wall (5); the cap head (2) is positioned at the top end of the screw main body (1), is coaxial with the screw main body (1) and is connected into a whole, the driving groove (3) is positioned at the end part of the cap head (2), and forms rotational symmetry with the center of the cap head (2), the central positioning recess (4) is positioned at the center of the end surface of the cap head (2) and extends towards the screw main body (1), the taper side wall (5) is positioned at the side surface of the cap head (2) or the driving groove (3) or the central positioning recess (4), and is integrated with the cap head (2) or the driving groove (3) or the central positioning recess (4), and the taper and the depth of the cap head must meet the technical requirement range of the connection bending strength and the manual plugging flexibility simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210985214.3A CN115217833A (en) | 2022-08-12 | 2022-08-12 | Screw with coaxial butt joint function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210985214.3A CN115217833A (en) | 2022-08-12 | 2022-08-12 | Screw with coaxial butt joint function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115217833A true CN115217833A (en) | 2022-10-21 |
Family
ID=83616435
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210985214.3A Pending CN115217833A (en) | 2022-08-12 | 2022-08-12 | Screw with coaxial butt joint function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115217833A (en) |
-
2022
- 2022-08-12 CN CN202210985214.3A patent/CN115217833A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |