CN213393048U - Axle pin positioning screw - Google Patents
Axle pin positioning screw Download PDFInfo
- Publication number
- CN213393048U CN213393048U CN202022392311.0U CN202022392311U CN213393048U CN 213393048 U CN213393048 U CN 213393048U CN 202022392311 U CN202022392311 U CN 202022392311U CN 213393048 U CN213393048 U CN 213393048U
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- screw
- shaft
- connecting part
- right end
- screw fixing
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Abstract
The utility model relates to an industrial sewing machine field specifically is a shaft pin set screw. The shaft pin positioning screw comprises a body, wherein a screw fixing part is arranged at the left part of the body, a connecting part is arranged at the right part of the body, the screw fixing part is inwards sunken to form an inner hexagonal fastening groove, and the right end of the connecting part is arranged in a plane. The utility model discloses an useful part: the right end of the connecting part is changed into an annular plane, the extension is designed by adopting an annular chamfer, the right end of the connecting part is provided with a top hole, and the right end of the connecting part forms the annular plane, so that the contact surface between the front end of the screw and the outer surface of the shaft is increased, the shaft and the shaft sleeve can be effectively locked, and the locking capacity between the shaft and the shaft sleeve is enhanced; the screw fixing part changes the original straight open groove into the inner hexagon, and compared with the inner hexagon depth of the inner hexagon screw provided in the national standard, the screw fixing part increases the easy operability during installation when the feeding mechanism of the whole machine is assembled.
Description
Technical Field
The utility model relates to an industrial sewing machine field specifically is a shaft pin set screw.
Background
The industrial sewing machine feeding mechanism part needs to use a shaft pin positioning screw which is used for connecting a shaft and a shaft sleeve and plays a role in positioning, the whole front end face of the screw in the current standard part and the peripheral contact surface of the shaft are not flat, the shaft and the shaft sleeve are not easy to lock, the screw in the standard part is a straight open groove, the slot is easy to deform when the screw is adjusted by a screwdriver to be loose or tight, and the screwdriver is not easy to slip and lock.
Disclosure of Invention
In order to solve the poor technical problem of current pivot set screw locking effect, the utility model provides an axle pin set screw.
The technical scheme of the utility model as follows:
the shaft pin positioning screw comprises a body, wherein a screw fixing part is arranged at the left part of the body, a connecting part is arranged at the right part of the body, the screw fixing part is inwards sunken to form an inner hexagonal fastening groove, and the right end of the connecting part is arranged in a plane.
The extension of connecting portion right-hand member adopts annular chamfer design, forms annular chamfer face, and the connecting portion right-hand member is inwards sunken to form the apical pore, and the connecting portion right-hand member face forms annular plane.
The top hole side wall is obliquely arranged, and a 60-degree included angle is formed between the top hole side wall and the connecting portion side wall.
The depth of the hexagon socket fastening groove formed by inwards recessing the left end of the screw fixing part is greater than the depth of a standard hexagon socket.
The surface of the connecting part is provided with a thread for fastening.
By using the technical scheme of the utility model, the structure is novel, the design is ingenious, the right end of the connecting part is changed into an annular plane, the extension adopts an annular chamfer design, the right end of the connecting part is provided with a top hole, and the right end of the connecting part forms the annular plane, so that the contact surface between the front end of the screw and the outer surface of the shaft is increased, the shaft and the shaft sleeve can be effectively locked, and the locking capacity between the shaft and the shaft sleeve is enhanced; the screw fixing part changes the original straight open groove of a word into the inner hexagon, and the inner hexagon depth of the inner hexagon screw is increased compared with that of the inner hexagon screw provided in the national standard, so that the inner hexagon is not easy to slip when the inner hexagon wrench fastens the screw, the torque index between the fastening shaft and the shaft sleeve can be reached, and the operability is improved when the whole machine feeder mechanism is assembled.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a schematic side view of the present invention;
fig. 3 is a schematic side view of the present invention.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings and examples, which are only used for explaining the present invention and do not limit the scope of the present invention.
Examples
As shown in fig. 1~3 pivot set screw, including body 1, 1 left part of body is equipped with screw fixation portion 2, and 1 right part of body is equipped with connecting portion 3, screw fixation portion 2 inwards caves in and forms hexagon socket head fastening groove, and the hexagon socket head fastening groove degree of depth that the 2 left ends of screw fixation portion inwards caves in and forms is greater than the standard hexagon socket head depth, and difficult slipping when using hexagon socket head wrench to fasten, 3 right-hand members of connecting portion are the annular plane setting, and the outer design that adopts annular chamfer of rightmost end epitaxy, form annular chamfer face 4, and 3 right-hand members of connecting portion inwards caves in and form apical pore 5, and 5 lateral walls of apical pore slope sets up, and apical pore 5 lateral walls form 60 degrees contained angles with 3 lateral walls of connecting portion, and 3 right-hand members of connecting portion face annular plane 6 for the front end and the external surface contact surface increase of.
The right end of a screw connecting part 3 in the current standard part is not flat with the peripheral contact surface of the shaft, and the shaft is not easy to be locked with the shaft sleeve, the right end of the connecting part 3 designed by the utility model is changed into an annular plane 6, the extension of the rightmost end adopts the annular chamfer design to form an annular chamfer surface 4, the right end of the connecting part 3 is inwards sunken to form a top hole 5, the side wall of the top hole 5 is obliquely arranged, the side wall of the top hole 5 and the side wall of the connecting part 3 form a 60-degree included angle, the right end surface of the connecting part 3 forms the annular plane 6, so that the contact surface of the front end of the screw and the outer surface of the shaft is enlarged; screw in the standard component is the straight open groove of a word, and the time slot mouth is easily yielding in screwdriver adjustment screw elasticity, causes the screwdriver to skid and is unfavorable for locking, the utility model discloses a 2 screw fixed parts change the straight open groove of original a word into the allen key to compare the interior hexagonal depth degree increase of the interior hexagonal screw that provides in the national standard, the allen key is difficult for skidding when allen key fastening screw like this, can reach the moment of torsion index between fastening shaft and the axle sleeve, improve the easy operability when the installation when complete machine feeder mechanism assembles.
It should be understood that the above-mentioned embodiments are only preferred embodiments of the present invention, and not intended to limit the technical solutions of the present invention, and those skilled in the art can add, subtract, replace, change or modify the above-mentioned embodiments without departing from the spirit and principle of the present invention, and all such additions, substitutions, changes or modifications should fall within the scope of the appended claims.
Claims (5)
1. Pivot set screw, including body (1), its characterized in that: the novel screw fixing device is characterized in that a screw fixing portion (2) is arranged at the left portion of the body (1), a connecting portion (3) is arranged at the right portion of the body (1), the screw fixing portion (2) is inwards sunken to form an inner hexagonal fastening groove, and the right end of the connecting portion (3) is arranged in a plane.
2. The pin set screw of claim 1, wherein: the extension of connecting portion (3) right-hand member adopts annular chamfer design, forms annular chamfer face (4), and connecting portion (3) right-hand member is inwards sunken to form apical pore (5), and connecting portion (3) right-hand member face forms annular plane (6).
3. The pin set screw of claim 2, wherein: the side wall of the top hole (5) is obliquely arranged, and a 60-degree included angle is formed between the side wall of the top hole (5) and the side wall of the connecting part (3).
4. The pin set screw of claim 1, wherein: the left end of the screw fixing part (2) is sunken inwards to form an inner hexagonal fastening groove, and the depth of the inner hexagonal fastening groove is greater than the depth of a standard inner hexagonal fastening groove.
5. The pin set screw of claim 1, wherein: the surface of the connecting part (3) is provided with a thread for fastening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022392311.0U CN213393048U (en) | 2020-10-23 | 2020-10-23 | Axle pin positioning screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022392311.0U CN213393048U (en) | 2020-10-23 | 2020-10-23 | Axle pin positioning screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213393048U true CN213393048U (en) | 2021-06-08 |
Family
ID=76190462
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022392311.0U Active CN213393048U (en) | 2020-10-23 | 2020-10-23 | Axle pin positioning screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213393048U (en) |
-
2020
- 2020-10-23 CN CN202022392311.0U patent/CN213393048U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |