CN212003895U - Locking nut - Google Patents
Locking nut Download PDFInfo
- Publication number
- CN212003895U CN212003895U CN202020515199.2U CN202020515199U CN212003895U CN 212003895 U CN212003895 U CN 212003895U CN 202020515199 U CN202020515199 U CN 202020515199U CN 212003895 U CN212003895 U CN 212003895U
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- China
- Prior art keywords
- locking
- nut body
- nut
- boss
- retaining member
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Abstract
The utility model discloses a locking nut aims at providing a simple structure, simple to operate, the difficult not hard up nut of locking, and its technical scheme main points are including being regular hexagon's nut body and arranging the screw hole of coaxial line on the nut body in, the nut body is equipped with the boss that is cyclic annular and with the screw hole same axis, the boss is equipped with and is circular-arc and the first locking groove with the screw hole same axis, the nut body is equipped with and arranges in on the boss and be annular retaining member, the retaining member is equipped with the first locking portion with first locking groove adaptation, the utility model is suitable for a fastener technical field.
Description
Technical Field
The utility model relates to a fastener technical field, more specifically say, it relates to a lock nut.
Background
The hexagonal nut is a nut, is screwed together with a bolt or a screw rod to play a role in fastening, is an original element which is necessary for all production and manufacturing machines, is various in types, and is commonly used in hexagonal nuts with national standards, British standards, American standards and Japanese standards, and is divided into carbon steel, high-strength, stainless steel, plastic steel and the like according to different materials. However, when the nut is exposed to a strong vibration environment, the nut may loosen.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, the utility model aims to provide a simple structure, simple to operate, the difficult not hard up nut of locking.
In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a locking nut, is including being regular hexagon's nut body and arranging the screw hole of coaxial line on the nut body in, the nut body is equipped with the boss that is cyclic annular and with screw hole the same axis, the boss is equipped with the first locking groove that is circular-arc and with screw hole the same axis, the nut body is equipped with and arranges in on the boss and be annular retaining member, the retaining member be equipped with the first locking portion of first locking groove adaptation.
Through adopting above-mentioned technical scheme, the nut body is provided with the boss that is cyclic annular and with the screw hole same axis, the boss is provided with the first locking groove that is circular-arc and with the screw hole same axis, boss and nut body coupling, the boss inboard is greater than the screw hole, when guaranteeing screw hole installation use, the bolt can run through, through the first locking groove of milling process shaping on the boss, guarantee the structural strength of nut body, the nut body is provided with and arranges in on the boss and be cyclic annular retaining member, the retaining member is provided with the first locking portion with first locking groove adaptation, locking is difficult not hard up when making the nut body use through the retaining member, first locking groove and first locking portion adaptation, the restriction retaining member rotates around the axis, and mutual slip between the nut body, make the nut body be connected closely with the retaining member.
The utility model discloses further set up to: the boss is provided with a plurality of second locking grooves which are arranged on the first locking grooves and are radially and uniformly arranged, and the locking piece is provided with a second locking part matched with the second locking grooves.
Through adopting above-mentioned technical scheme, the boss is provided with 2 ~ 6 second locking grooves of arranging in on the first locking groove and radial align to grid, the retaining member be provided with the second locking portion of second locking groove adaptation, through second locking groove and second locking portion adaptation, increase the steadiness of being connected between retaining member and the nut body, when making on the retaining member installation nut body, the retaining member is difficult for droing from the nut body, when the nut body is rotatory screwed up, bear great circumference power, and the structure is more firm.
The utility model discloses further set up to: the cross sections of the second locking groove and the second locking part are both right-angled triangles.
Through adopting above-mentioned technical scheme, the cross-section of second locking groove and second locking portion all is right angled triangle, the right-angle side in second locking groove and the right-angle side conflict of second locking portion, the hypotenuse in second locking groove and the hypotenuse of second locking portion are contradicted, when the nut body is screwed up the back and is toward returning back, the retaining member has the difficult rotation of frictional force, hypotenuse interact, make to have relative dislocation between nut body and the retaining member, then produce lifting tension, increase the frictional force between retaining member and the contact surface, frictional force between nut body and the bolt, make auto-lock performance higher, guarantee that the nut body is difficult not hard up after locking.
The utility model discloses further set up to: the locking piece is provided with a plurality of radial bulges.
Through adopting above-mentioned technical scheme, the retaining member is provided with a plurality of radial archs that are, further plays locking effect behind the protruding increase retaining member locking, when using two nut bodies to lock, the retaining member of two nut bodies can interlock each other, increases the locking performance between the anti-loosening piece.
The utility model discloses further set up to: the nut body is provided with a spherical gap.
Through adopting above-mentioned technical scheme, the nut body is provided with the breach that is the sphere form, and 3 breachs are arranged evenly, and the breach is convenient for screw up the instrument and is used, increases area of stress and stress point, prevents to screw up instrument and nut body and slides, makes more rapid stabilization when screwing up the nut body.
Drawings
Fig. 1 is a schematic structural view of an embodiment of the lock nut of the present invention;
fig. 2 is a top view of an embodiment of the nut body of the present invention;
FIG. 3 is a top view of an embodiment of the retaining member of the present invention;
the reference numbers in the figure, 1-nut body, 11-threaded hole, 12-notch, 2-boss, 21-first locking groove, 22-second locking groove, 3-locking piece, 31-first locking part, 32-second locking part and 33-protrusion.
Detailed Description
The embodiments of the locking nut of the present invention will be further explained with reference to fig. 1 to 3.
A locking nut comprises a regular hexagon nut body 1 and a threaded hole 11 which is arranged on the nut body 1 and is coaxial, wherein the nut body 1 is provided with a boss 2 which is annular and has the same axis with the threaded hole 11, the boss 2 is provided with a first locking groove 21 which is arc-shaped and has the same axis with the threaded hole 11, the boss 2 is integrally connected with the nut body 1, the inner side of the boss 2 is larger than the threaded hole 11, when the threaded hole 11 is installed and used, a bolt can penetrate through the boss 2, the first locking groove 21 is formed on the boss 2 through milling, the structural strength of the nut body 1 is ensured, the nut body 1 is provided with a locking part 3 which is annular and is arranged on the boss 2, the locking part 3 is provided with a first locking part 31 which is matched with the first locking groove 21, the locking part 3 enables the nut body 1 to be locked and not easy to loosen when in use, and the, the locking piece 3 is limited to rotate around the axis and slide with the nut body 1, so that the nut body 1 is tightly connected with the locking piece 3.
The cross-section of second locking groove 22 and second locking portion 32 all is right angled triangle, the right-angle side of second locking groove 22 and the right-angle side of second locking portion 32 contradict, the hypotenuse of second locking groove 22 and the hypotenuse of second locking portion 32 contradict, nut body 1 screws up the back and when returning back, retaining member 3 has the difficult rotation of frictional force, hypotenuse interact, make and have relative dislocation between nut body 1 and the retaining member 3, then produce lifting tension, increase the frictional force between retaining member 3 and the contact surface, frictional force between nut body 1 and the bolt, make self-locking performance higher, guarantee that nut body 1 is difficult not hard up after locking.
Retaining member 3 is provided with a plurality of radial arch 33 that are, and arch 33 further plays locking effect after increasing retaining member 3 and locking, when using two nut bodies 1 to lock, and the retaining member 3 of two nut bodies 1 can interlock each other, increases the locking performance between the anti-loosening member.
The above is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and the skilled in the art can carry out the common changes and replacements within the technical solution of the present invention.
Claims (5)
1. The utility model provides a locking nut, is including being regular hexagon's nut body (1) and arranging coaxial line screw hole (11) on nut body (1) in, its characterized in that, nut body (1) is equipped with and is cyclic annular and with boss (2) of screw hole (11) the same axis, boss (2) are equipped with and are circular-arc and with first locking groove (21) of screw hole (11) the same axis, nut body (1) are equipped with arrange in on boss (2) and be annular retaining member (3), retaining member (3) are equipped with first locking portion (31) with first locking groove (21) adaptation.
2. The lock nut as claimed in claim 1, wherein said boss (2) is provided with a plurality of second locking grooves (22) which are arranged radially and uniformly on said first locking groove (21), and said locking member (3) is provided with second locking portions (32) which are fitted into said second locking grooves (22).
3. The lock nut as claimed in claim 2, wherein the second locking groove (22) and the second locking portion (32) each have a right-angled triangle shape in cross section.
4. A lock nut according to claim 3, characterized in that the locking element (3) is provided with a number of radial projections (33).
5. Lock nut according to claim 4, characterized in that the nut body (1) is provided with a spherical indentation (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020515199.2U CN212003895U (en) | 2020-04-09 | 2020-04-09 | Locking nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020515199.2U CN212003895U (en) | 2020-04-09 | 2020-04-09 | Locking nut |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212003895U true CN212003895U (en) | 2020-11-24 |
Family
ID=73414387
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020515199.2U Active CN212003895U (en) | 2020-04-09 | 2020-04-09 | Locking nut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212003895U (en) |
-
2020
- 2020-04-09 CN CN202020515199.2U patent/CN212003895U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |