CN217653059U - Locking double thread hexagonal step nut - Google Patents
Locking double thread hexagonal step nut Download PDFInfo
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- CN217653059U CN217653059U CN202221270127.1U CN202221270127U CN217653059U CN 217653059 U CN217653059 U CN 217653059U CN 202221270127 U CN202221270127 U CN 202221270127U CN 217653059 U CN217653059 U CN 217653059U
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Abstract
The utility model relates to a hexagonal step nut field discloses a locking double thread hexagonal step nut, including nut main part and bolt main part, the nut main part is close to the inner wall at middle part and has seted up first internal thread, first arc surface has been seted up to the inner wall that the nut main part is close to the front end, the second arc surface has been seted up to the inner wall of nut main part rear end, the outer wall fixedly connected with connecting seat at nut main part rear end middle part, the second internal thread has been seted up to the inner wall of connecting seat, the third arc surface has been seted up to the outer wall of bolt main part front end, first external screw thread has been seted up to the outer wall that the bolt main part is close to the front end. The utility model discloses in, insert through-hole to the inside of spacing groove and mutually support with the locking pole through the allen key that corresponds, make the locking pole rotate to bolt main part direction, make third internal thread and third thread fit to make the bolt main part fixed by the locking pole secondary, further reached locking purpose.
Description
Technical Field
The utility model relates to a hexagonal step nut field especially relates to a locking double thread hexagonal step nut.
Background
Nuts are common fasteners, the conventional nuts generally do not have a locking function, and because a plurality of bolts and nuts are used on a machine, the machine vibrates slightly after the machine is started, so that when the bolts and the nuts are used for a long time, the nuts can be loosened and even separated from the bolts, and thus, the normal operation of the machine is influenced significantly.
Through retrieval, the prior patent (publication number: CN 206449096U) discloses a simple anti-loose nut, which comprises a hexagonal head, wherein an internal thread is arranged in the hexagonal head, a polish rod is coaxially arranged at the inner end of the hexagonal head, an annular step is arranged on the peripheral surface of the tail end of the polish rod, a through hole communicated with an inner cavity of the hexagonal head is arranged in the middle of the polish rod, the thread sharp angle of the internal thread is 90 degrees, included angles formed by two sides of the thread sharp angle and a radial surface are respectively 30 degrees and 60 degrees, and the included angle is 60 degrees facing the screwing direction of a bolt.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the shortcoming that exists among the prior art, and the locking double thread hexagonal step nut that proposes, insert the inside of through-hole to spacing groove and mutually support with locking pole through the allen key that corresponds, make locking pole rotate to bolt main part direction, make third internal thread and third thread fit to make the bolt main part fixed by locking pole secondary, further reached locking purpose.
In order to achieve the above purpose, the utility model provides a following technical scheme:
a locking double-thread hexagonal step nut comprises a nut body and a bolt body, wherein a first internal thread is formed on the inner wall, close to the middle part, of the nut body, a first arc surface is formed on the inner wall, close to the front end, of the nut body, a second arc surface is formed on the inner wall, close to the rear end, of the nut body, a connecting seat is fixedly connected to the outer wall, close to the middle part, of the rear end of the nut body, a second internal thread is formed on the inner wall of the connecting seat, a third arc surface is formed on the outer wall, close to the front end, of the bolt body, a first external thread is formed on the outer wall, close to the front end, of the bolt body, a fourth arc surface is formed on the outer wall, close to the middle part, of the bolt body, and a second external thread is formed on the outer wall, close to the rear end, of the bolt body;
limiting grooves are formed in the upper end and the lower end of the nut main body, one end, close to the bolt main body, of each limiting groove is sleeved with a locking rod, locking grooves are formed in the upper portion and the lower portion of the front end of the bolt main body, third internal threads are formed in the inner walls of the locking grooves, third external threads are formed in the outer walls of the locking rods, and limiting blocks are fixedly connected to the outer walls of the locking rods, far away from one end of the bolt main body;
through the technical scheme, through first internal thread and first external screw thread clearance fit, through second internal thread and second external screw thread clearance fit, thereby the fastness of being connected of bolt main part and nut main part has been improved greatly, thereby locking function has been reached, at this moment the staff rethread corresponds hexagonal socket head wrench inserts the inside of through-hole to spacing groove and mutually supports with the check rod, make the check rod rotate to bolt main part direction, make third internal thread and third external screw thread fit, thereby make the bolt main part fixed by the check rod secondary, locking purpose has further been reached.
Further, the first internal thread is in clearance fit with the first external thread;
through above-mentioned technical scheme, can make bolt main part and nut main part fix through first internal thread and first external screw thread.
Further, the second internal thread is in clearance fit with the second external thread;
through above-mentioned technical scheme, can make bolt main part and nut main part fix through second internal thread and second external thread.
Further, the first arc surface is tightly attached to the third arc surface;
through the technical scheme, the nut main body and the bolt main body can be attached more tightly through the first arc surface and the third arc surface.
Further, the second arc surface is tightly attached to the fourth arc surface;
through above-mentioned technical scheme, can make inseparabler of laminating of nut main part and bolt main part through second arc surface and fourth arc surface.
Furthermore, through holes are formed in one ends, far away from the bolt main body, of the limiting grooves;
through the technical scheme, the inner hexagonal wrench can be conveniently inserted into a worker through the through hole.
Further, the third internal thread is in clearance fit with the third external thread;
through above-mentioned technical scheme, can make bolt main part fixed once more through third internal thread and third external screw thread.
Furthermore, an arc-shaped groove is formed in the middle of the outer wall of the front end of the nut main body;
through above-mentioned technical scheme, can be convenient for the installation of this line hexagonal step nut through arc recess.
The utility model discloses following beneficial effect has:
1. the utility model provides a pair of locking double thread hexagonal step nut, current hexagonal step nut of contrast, this hexagonal step nut is provided with first internal thread, first external screw thread, second internal thread and second internal thread, when the nut main part is fixed with the bolt main part, through first internal thread and first external screw thread clearance fit, through second internal thread and second external screw thread clearance fit to the fastness that bolt main part and nut main part are connected has been improved greatly, thereby has reached locking function.
2. The utility model provides a pair of locking double thread hexagonal step nut, the current hexagonal step nut of contrast, this hexagonal step nut is provided with locking bar, the locking groove, the third external screw thread, the third internal thread, when the fixed completion of nut main part and bolt main part, the staff inserts the inside of through-hole to spacing groove and mutually supports with locking bar through the interior hexagonal spanner that corresponds, make locking bar rotate to bolt main part direction, make third internal thread and third external screw-thread fit, thereby make the bolt main part fixed by locking bar secondary, locking purpose has further been reached.
3. The utility model provides a pair of locking double thread hexagonal step nut, the current hexagonal step nut of contrast, this hexagonal step nut are provided with spacing groove and stopper, can play spacing effect to the stopper through the spacing groove to make locking lever can not drop from the inside of nut main part, thereby reached the purpose that prevents that locking lever from dropping.
Drawings
Fig. 1 is a front sectional view of a double-thread locking hexagonal stepped nut of the present invention;
fig. 2 is an axonometric view of a double-thread hexagonal step nut main body, a connecting seat, a first internal thread and a second internal thread for preventing looseness provided by the utility model;
fig. 3 is a left side view of the double-thread hexagonal stepped anti-loosening nut of the present invention;
fig. 4 is a front view of a locking double-thread hexagonal step nut and bolt main body provided by the utility model;
fig. 5 is an enlarged view of a point a in fig. 1.
Illustration of the drawings:
1. a nut body; 2. a first internal thread; 3. a first arc surface; 4. a second arc surface; 5. a connecting seat; 6. a second internal thread; 7. a bolt body; 8. a first external thread; 9. a second external thread; 10. a third arc surface; 11. a fourth arc surface; 12. a limiting groove; 13. a through hole; 14. a locking bar; 15. a third external thread; 16. an anti-loosening groove; 17. a third internal thread; 18. a limiting block; 19. an arc-shaped groove.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-5, the present invention provides an embodiment: a locking double-thread hexagonal step nut comprises a nut body 1 and a bolt body 7, wherein a first internal thread 2 is formed on the inner wall, close to the middle part, of the nut body 1, a first arc surface 3 is formed on the inner wall, close to the front end, of the nut body 1, a second arc surface 4 is formed on the inner wall, close to the rear end, of the nut body 1, a connecting seat 5 is fixedly connected to the outer wall, close to the middle part, of the rear end of the nut body 1, a second internal thread 6 is formed on the inner wall of the connecting seat 5, a third arc surface 10 is formed on the outer wall, close to the front end, of the bolt body 7, a first external thread 8 is formed on the outer wall, close to the front end, of the bolt body 7, a fourth arc surface 11 is formed on the outer wall, and a second external thread 9 is formed on the outer wall, close to the rear end, of the bolt body 7;
limiting grooves 12 are formed in the upper end and the lower end of the nut main body 1, locking rods 14 are sleeved at one ends of the limiting grooves 12 close to the bolt main body 7, locking grooves 16 are formed in the upper portion and the lower portion of the front end of the bolt main body 7, third internal threads 17 are formed in the inner walls of the locking grooves 16, third external threads 15 are formed in the outer walls of the locking rods 14, and limiting blocks 18 are fixedly connected to the outer walls of the locking rods 14 far away from one end of the bolt main body 7;
through first internal thread 2 and 8 clearance fit of first external screw thread, through 9 clearance fit of second internal thread 6 and second external screw thread, thereby the fastness that bolt main part 7 and nut main part 1 are connected has been improved greatly, thereby locking function has been reached, at this moment the staff rethread corresponds hexagonal socket wrench inserts through-hole 13 to 12 inside of spacing groove and mutually supports with check rod 14, make check rod 14 rotate to bolt main part 7 direction, make third internal thread 17 and the cooperation of third external screw thread 15, thereby make bolt main part 7 by 14 secondary fixation of check rod, further reached locking purpose.
First internal thread 2 and 8 clearance fit of first external screw thread, can make bolt main part 7 fix with nut main part 1 through first internal thread 2 and first external screw thread 8, second internal thread 6 and 9 clearance fit of second external screw thread, can make bolt main part 7 fix with nut main part 1 through second internal thread 6 and second external screw thread 9, first arc surface 3 and third arc surface 10 closely laminate, can make more closely that nut main part 1 and bolt main part 7 laminate through first arc surface 3 and third arc surface 10, second arc surface 4 and fourth arc surface 11 closely laminate, can make more closely that nut main part 1 and bolt main part 7 laminate through second arc surface 4 and fourth arc surface 11, through-hole 13 has all been seted up to the one end that bolt main part 7 was kept away from to spacing groove 12, can make things convenient for the staff to insert interior hexagon spanner through-hole 13, third internal thread 17 and third external screw thread 15 clearance fit, can make bolt main part 7 fixed once more through third internal thread 17 and third external screw thread 15, the middle part of nut main part 1 front end has seted up recess 19, can be convenient for the step nut installation line through arc recess 19 of this hexagon nut.
The working principle is as follows: when nut main part 1 is fixed with bolt main part 7, through first internal thread 2 and 8 clearance fit of first external screw thread, through second internal thread 6 and 9 clearance fit of second external screw thread, thereby the fastness that nut main part 1 and bolt main part 7 are connected has been improved greatly, thereby locking function has been reached, when nut main part 1 and bolt main part 7 are fixed to be accomplished, the staff inserts through-hole 13 to the inside of spacing groove 12 and mutually supports with check rod 14 through the interior hexagonal spanner that corresponds, make check rod 14 rotate to bolt main part 7 direction, make third internal thread 17 and the cooperation of third external screw thread 15, thereby make bolt main part 7 fixed by 14 secondaries of check rod, further reached locking purpose.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.
Claims (8)
1. The utility model provides a locking double thread hexagonal step nut, includes nut main part (1) and bolt main part (7), its characterized in that: a first internal thread (2) is formed in the inner wall, close to the middle, of the nut main body (1), a first arc surface (3) is formed in the inner wall, close to the front end, of the nut main body (1), a second arc surface (4) is formed in the inner wall, close to the rear end, of the nut main body (1), a connecting seat (5) is fixedly connected to the outer wall, close to the front end, of the rear end of the nut main body (1), a second internal thread (6) is formed in the inner wall of the connecting seat (5), a third arc surface (10) is formed in the outer wall, close to the front end, of the bolt main body (7), a first external thread (8) is formed in the outer wall, close to the front end, of the bolt main body (7), a fourth arc surface (11) is formed in the outer wall, and a second external thread (9) is formed in the outer wall, close to the rear end, of the bolt main body (7);
spacing groove (12) have all been seted up to nut main part (1) upper end and the inside of lower extreme, the one end that spacing groove (12) are close to bolt main part (7) all overlaps and is equipped with check rod (14), anti-loosening groove (16) have all been seted up to the upper portion and the lower part of bolt main part (7) front end, third internal thread (17) have all been seted up to the inner wall in anti-loosening groove (16), third external screw thread (15) have been seted up to the outer wall of check rod (14), the equal fixedly connected with stopper (18) of outer wall of bolt main part (7) one end is kept away from in check rod (14).
2. A locking double thread hexagonal step nut as claimed in claim 1, wherein: the first internal thread (2) is in clearance fit with the first external thread (8).
3. A locking double thread hexagonal step nut as claimed in claim 1, wherein: the second internal thread (6) is in clearance fit with the second external thread (9).
4. An anti-loosening double-thread hexagonal stepped nut as claimed in claim 1, wherein: the first arc surface (3) is tightly attached to the third arc surface (10).
5. A locking double thread hexagonal step nut as claimed in claim 1, wherein: the second arc surface (4) is tightly attached to the fourth arc surface (11).
6. An anti-loosening double-thread hexagonal stepped nut as claimed in claim 1, wherein: through holes (13) are formed in one ends, far away from the bolt main body (7), of the limiting grooves (12).
7. A locking double thread hexagonal step nut as claimed in claim 1, wherein: the third internal thread (17) is in clearance fit with the third external thread (15).
8. An anti-loosening double-thread hexagonal stepped nut as claimed in claim 1, wherein: an arc-shaped groove (19) is formed in the middle of the outer wall of the front end of the nut main body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221270127.1U CN217653059U (en) | 2022-05-25 | 2022-05-25 | Locking double thread hexagonal step nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221270127.1U CN217653059U (en) | 2022-05-25 | 2022-05-25 | Locking double thread hexagonal step nut |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217653059U true CN217653059U (en) | 2022-10-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221270127.1U Active CN217653059U (en) | 2022-05-25 | 2022-05-25 | Locking double thread hexagonal step nut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217653059U (en) |
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2022
- 2022-05-25 CN CN202221270127.1U patent/CN217653059U/en active Active
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