CN216666195U - Large self-locking external nut with outer side open slot - Google Patents
Large self-locking external nut with outer side open slot Download PDFInfo
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- CN216666195U CN216666195U CN202123146428.1U CN202123146428U CN216666195U CN 216666195 U CN216666195 U CN 216666195U CN 202123146428 U CN202123146428 U CN 202123146428U CN 216666195 U CN216666195 U CN 216666195U
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Abstract
The utility model discloses a large self-locking outer nut with an outer side open slot, which comprises a nut body, wherein the top of the nut body is fixedly connected with a fastening nut, the outer side of the fastening nut is provided with a locking nut, the top of the locking nut is provided with a locking ring, and a locking mechanism is arranged between the fastening nut and the locking nut; the utility model relates to the technical field of fasteners. This large-scale auto-lock outer nut with outside open slot links together through auto-lock external screw thread and auto-lock internal thread meshing with lock nut and fastening nut through its self, and fastening nut's locking internal thread and bolt thread lower terminal surface combine closely, and lock nut's auto-lock internal thread and the screw thread up end of bolt combine closely, are in the same place bolt and nut fastening, reach and prevent that the nut from producing not hard up purpose because of the jarring to can improve the fail safe nature of equipment work greatly.
Description
Technical Field
The utility model relates to the technical field of fasteners, in particular to a large self-locking outer nut with an outer side open slot.
Background
The common nut is used as a common fastener in daily life and the mechanical field, is usually matched with an elastic washer or a stop washer for anti-loose protection, and for a non-standard nut, the elastic washer or the stop washer cannot be basically adopted for anti-loose protection due to the spatial position, the processing and assembling of the washer, the assembling of the nut, the anti-loose effect and the like.
However, the existing large self-locking external nut is easy to loosen under the impact, has potential safety hazards and influences the normal use of mechanical equipment.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects of the prior art, the utility model provides a large self-locking external nut with an outer side open slot, which solves the problems that the conventional large self-locking external nut is easy to loosen during use, has potential safety hazards and influences the normal use of mechanical equipment.
In order to achieve the purpose, the utility model is realized by the following technical scheme: a large self-locking outer nut with an outer side open slot comprises a nut body, wherein a fastening nut is fixedly connected to the top of the nut body, a locking nut is arranged on the outer side of the fastening nut, a locking ring is arranged on the top of the locking nut, and a locking mechanism is arranged between the fastening nut and the locking nut; the locking mechanism comprises a locking internal thread formed in the inner wall of the fastening nut, a self-locking external thread formed on the outer wall of the fastening nut, a self-locking internal thread formed in the locking nut, and the self-locking external thread and the self-locking internal thread are connected in a meshed mode.
Preferably, the inner wall of the nut body is provided with an internal thread, and the internal thread is matched with the locking internal thread of the fastening nut.
Preferably, the top of the locking nut is provided with a mounting groove, and the side surface of the mounting groove is provided with a clamping groove.
Preferably, the outer side wall of the locking ring is fixedly connected with a boss, the inner wall of the locking ring is provided with locking threads, and the locking ring corresponds to the mounting groove.
Preferably, the locking ring is arranged in an installation groove of a locking nut in interference fit with the locking ring, and the boss on the locking ring is matched with the clamping groove on the locking nut in position, size and shape.
Preferably, the locking thread of the locking ring is matched with the locking internal thread of the fastening nut in tooth form, large diameter, thread pitch, thread number and screwing direction.
Advantageous effects
The utility model provides a large self-locking outer nut with an outer side open slot. Compared with the prior art, the method has the following beneficial effects:
(1) the large self-locking outer nut with the outer side open slot is matched with the locking ring through the combination of the locking nut and the locking ring, so that the nut is good in reliability, simple in structure, low in machining precision and low in cost, the looseness between the nut and the bolt can be effectively prevented, the locking ring can be pulled out, a new locking ring is replaced, and the self-locking function can be continuously realized.
(2) The large self-locking outer nut with the outer side open slot is formed by connecting the locking nut and the fastening nut together through self-locking outer threads and self-locking inner threads in a meshed manner, then, when in use, the whole body formed by the fastening nut and the locking nut is screwed into the bolt, when the tightening torque of the fastening nut reaches the rated torque, then the locking nut is screwed, the locking internal thread of the fastening nut is tightly combined with the lower end face of the bolt thread, the thread pitches of the self-locking internal thread and the self-locking external thread are larger than the thread pitch of the bolt, the distance that lock nut moved under the condition with the corner is greater than the distance of bolt screw thread, and lock nut's auto-lock internal thread combines closely with the screw thread up end of bolt this moment, is in the same place bolt and nut fastening, reaches to prevent that the nut from producing not hard up purpose because of the jarring to the fail safe nature of equipment work can be improved greatly.
(3) This large-scale auto-lock outer nut with outside open slot, when receiving the jarring, fastening nut produces the revolving force along bolt screw thread terminal surface direction down, and lock nut produces the revolving force along bolt screw thread up end direction, two revolving force opposite direction, so can screw automatically between fastening nut and the lock nut, the pitch of auto-lock internal thread and auto-lock external screw thread is greater than the screw thread pitch of bolt, the distance that lock nut removed under the condition with the corner is greater than the distance of bolt screw thread, consequently with bolt and fastening nut fastening together firmly, prevent fastening nut's not hard up.
Drawings
FIG. 1 is a perspective view of the external structure of the present invention;
FIG. 2 is a perspective cross-sectional view of the structure of the present invention;
fig. 3 is an exploded perspective view of the structure of fig. 2.
In the figure: 1. a nut body; 2. fastening a nut; 3. locking the nut; 4. a locking ring; 5. a locking mechanism; 101. an internal thread; 301. a clamping groove; 302. mounting grooves; 401. a boss; 402. locking the threads; 501. locking the internal thread; 502. self-locking external threads; 503. self-locking internal threads.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a technical solution: a large self-locking outer nut with an outer side open slot comprises a nut body 1, wherein a fastening nut 2 is fixedly connected to the top of the nut body 1, a locking nut 3 is arranged on the outer side of the fastening nut 2, a locking ring 4 is arranged on the top of the locking nut 3, and a locking mechanism 5 is arranged between the fastening nut 2 and the locking nut 3; the locking mechanism 5 comprises a locking internal thread 501 arranged on the inner wall of a fastening nut 2, a self-locking external thread 502 arranged on the outer wall of the fastening nut 2, a self-locking internal thread 503 arranged inside the locking nut 3, the self-locking external thread 502 and the self-locking internal thread 503 are connected in a meshing manner, the locking nut 3 and the fastening nut 2 are connected together in a meshing manner through the self-locking external thread 502 and the self-locking internal thread 503, then the whole formed by the fastening nut 2 and the locking nut 3 is screwed into a bolt when in use, when the screwing torque of the fastening nut 2 reaches a rated torque, the locking nut 3 is screwed, the locking internal thread 501 of the fastening nut 2 is tightly combined with the lower end face of the bolt thread at the moment, the thread pitches of the self-locking internal thread 503 and the self-locking external thread 502 are larger than the thread pitch of the bolt, the moving distance of the locking nut 3 is larger than the distance of the bolt thread under the condition of the same rotation angle, and the self-locking internal thread 503 of the locking nut 3 is tightly combined with the upper end face of the bolt thread at the moment, the bolt and the nut are fastened together, the purpose of preventing the nut from loosening due to shock is achieved, and therefore the safety and reliability of equipment operation can be greatly improved, the fastening nut 2 generates a rotating force along the direction of the lower end face of the bolt thread, the locking nut 3 generates a rotating force along the direction of the upper end face of the bolt thread, the two rotating forces are opposite in direction, the fastening nut 2 and the locking nut 3 can be automatically screwed, the thread pitches of the self-locking internal thread 503 and the self-locking external thread 502 are larger than the thread pitch of the bolt, and the moving distance of the locking nut 3 is larger than the distance of the bolt thread under the condition of the same rotation angle, so that the bolt and the fastening nut 2 are firmly fastened together, and the loosening of the fastening nut 2 is prevented; the inner wall of the nut body 1 is provided with an internal thread 101, and the internal thread 101 is matched with a locking internal thread 501 of the fastening nut 2; the top of the locking nut 3 is provided with a mounting groove 302, and the side surface of the mounting groove 302 is provided with a clamping groove 301; the outer side wall of the locking ring 4 is fixedly connected with a boss 401, the inner wall of the locking ring 4 is provided with a locking thread 402, and the locking ring 4 corresponds to the mounting groove 302; the locking ring 4 is arranged in the mounting groove 302 of the locking nut 3 in interference fit with the locking ring 4, the boss 401 on the locking ring 4 is matched with the clamping groove 301 on the locking nut 3 in position, size and shape, the nut is good in reliability, simple in structure, low in processing precision and low in cost through the mutual fit between the locking nut 3 and the locking ring 4 and the matching between the boss 401 and the clamping groove 301 through the combination of the locking nut 3 and the locking ring 4, the nut can be effectively prevented from loosening, meanwhile, the locking ring 4 can be pulled out, a new locking ring 4 is replaced, and the self-locking function can be continuously realized; the locking thread 402 of the locking ring 4 is matched with the locking internal thread 501 of the fastening nut 2 in the tooth form, the major diameter, the thread pitch, the thread number and the screwing direction.
And those not described in detail in this specification are well within the skill of those in the art.
When the self-locking nut works, the locking nut 3 and the locking ring 4 are matched with each other through the combination of the locking nut 3 and the locking ring 4, so that the nut has good reliability, simple structure, low processing precision and low cost, the nut and the bolt can be effectively prevented from loosening, meanwhile, the locking ring 4 can be pulled out, and the self-locking function can be continuously realized by replacing a new locking ring 4;
the locking nut 3 and the fastening nut 2 are meshed and connected together through self-locking external threads 502 and self-locking internal threads 503, then the whole formed by the fastening nut 2 and the locking nut 3 is screwed into the bolt when in use, when the screwing torque of the fastening nut 2 reaches the rated torque, the locking nut 3 is screwed, the locking internal threads 501 of the fastening nut 2 are tightly combined with the lower end surface of the bolt threads, the thread pitches of the self-locking internal threads 503 and the self-locking external threads 502 are greater than the thread pitch of the bolt, the moving distance of the locking nut 3 is greater than the distance of the bolt threads under the condition of the same rotation angle, the self-locking internal threads 503 of the locking nut 3 are tightly combined with the upper end surface of the bolt threads, the bolt and the nut are fastened together, the purpose of preventing the nut from loosening due to shock is achieved, and the safety and reliability of the equipment operation can be greatly improved;
when receiving the impact, fastening nut 2 produces the revolving force along bolt screw thread lower terminal surface direction, and lock nut 3 produces the revolving force along bolt screw thread up end direction, two revolving force opposite directions, so can screw automatically between fastening nut 2 and the lock nut 3, the pitch of auto-lock internal thread 503 and auto-lock external screw thread 502 is greater than the screw thread pitch of bolt, the distance that lock nut 3 removed is greater than the distance of bolt screw thread under the condition with the corner, consequently with bolt and fastening nut 2 fastening together firmly, prevent not hard up of fastening nut 2, above is exactly the theory of operation of the large-scale auto-lock external nut with outside open slot.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a large-scale auto-lock external nut with outside open slot, includes nut body (1), its characterized in that: the top of the nut body (1) is fixedly connected with a fastening nut (2), a locking nut (3) is arranged on the outer side of the fastening nut (2), a locking ring (4) is arranged on the top of the locking nut (3), and a locking mechanism (5) is arranged between the fastening nut (2) and the locking nut (3);
locking mechanism (5) are including having seted up locking internal thread (501) at fastening nut (2) inner wall, self-locking external screw thread (502) have been seted up to the outer wall of fastening nut (2), self-locking internal thread (503) have been seted up to the inside of fastening nut (3), mesh between self-locking external screw thread (502) and the self-locking internal thread (503) is connected.
2. The large self-locking external nut with the outside open slot as claimed in claim 1, wherein: the inner wall of the nut body (1) is provided with an internal thread (101), and the internal thread (101) is matched with a locking internal thread (501) of the fastening nut (2).
3. The large self-locking external nut with the outside open slot as claimed in claim 1, wherein: the top of the locking nut (3) is provided with a mounting groove (302), and the side surface of the mounting groove (302) is provided with a clamping groove (301).
4. The large self-locking outer nut with the outer side open slot as claimed in claim 3, wherein: the outer side wall of the locking ring (4) is fixedly connected with a boss (401), the inner wall of the locking ring (4) is provided with locking threads (402), and the locking ring (4) corresponds to the mounting groove (302) mutually.
5. The large self-locking external nut with the outside open slot as claimed in claim 4, wherein: the locking ring (4) is arranged in a mounting groove (302) of a locking nut (3) in interference fit with the locking ring, and a boss (401) on the locking ring (4) is matched with a clamping groove (301) on the locking nut (3) in position, size and shape.
6. The large self-locking external nut with the outside open slot as claimed in claim 4, wherein: the locking thread (402) of the locking ring (4) is matched with the locking internal thread (501) of the fastening nut (2) in tooth form, large diameter, thread pitch, thread number and screwing direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123146428.1U CN216666195U (en) | 2021-12-15 | 2021-12-15 | Large self-locking external nut with outer side open slot |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123146428.1U CN216666195U (en) | 2021-12-15 | 2021-12-15 | Large self-locking external nut with outer side open slot |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216666195U true CN216666195U (en) | 2022-06-03 |
Family
ID=81794723
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123146428.1U Active CN216666195U (en) | 2021-12-15 | 2021-12-15 | Large self-locking external nut with outer side open slot |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216666195U (en) |
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2021
- 2021-12-15 CN CN202123146428.1U patent/CN216666195U/en active Active
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