A high strength self-locking nut assembly

Abstract

The utility model relates to mechanical fastener technical field, concretely relates to a high -strength self -locking nut subassembly, including first nut and set the second nut of first nut top, the top of first nut is equipped with the lock ring, the top fixedly connected with a plurality of movable columns of lock ring, the second nut is equipped with a plurality of through -holes that cooperate with movable column, and the top of movable column is located in the through -hole, the top of second nut is equipped with the mounting ring, and the elastic piece that cooperates with movable column is installed on the mounting ring, and the lock structure that cooperates with mounting ring is installed on the second nut, only need to release the elastic pressure of elastic piece, and the state of mutual top of first nut and second nut is removed immediately, can be like twist ordinary nut same easily with its spin down, this greatly improves maintenance efficiency.

Description

Technical Field

[0001] This utility model relates to the field of mechanical fastener technology, and in particular to a high-strength self-locking nut assembly. Background Technology

[0002] In fields such as machinery, bridge structures, heavy vehicles, and aerospace, loosening of bolt and nut connections is a serious safety hazard. Traditional anti-loosening measures include spring washers, double nuts, and nylon self-locking nuts. Among these, double nut self-locking relies on operator experience to ensure pre-tightening force, and requires tightening both nuts during disassembly.

[0003] However, it is worth considering that since it relies entirely on the opposing force between the two nuts, and this force is determined by the torque of the operator tightening it a second time, it is difficult to standardize and inspect. Moreover, the disassembly process is the reverse of the installation process, requiring two wrenches to be operated in opposite directions, which is time-consuming and laborious.

[0004] Therefore, in order to solve the above problems, a more suitable facility that meets the needs of users is needed. Utility Model Content

[0005] In view of this, the purpose of this utility model is to propose a high-strength self-locking nut assembly to solve the problem that the above-mentioned disassembly process is the reverse of the installation process, which requires two wrenches to operate in opposite directions, and is time-consuming and laborious.

[0006] To achieve the above objectives, this utility model provides a high-strength self-locking nut assembly, including a first nut and a second nut disposed above the first nut. The top of the first nut is contacted with a locking ring, and the top of the locking ring is fixedly connected with several movable posts. The second nut is provided with several through holes that cooperate with the movable posts, and the top of the movable posts is located in the through holes.

[0007] The top of the second nut is provided with a mounting ring, on which an elastic element that cooperates with the movable column is mounted, and the second nut is provided with a locking structure that cooperates with the mounting ring.

[0008] Preferably, the locking structure includes several support parts fixedly installed at the bottom of the mounting ring. The support parts are in contact with the side walls of the second nut. A rod is inserted through the support part. Several slots are provided on the second nut. One end of the rod is located in the corresponding slot. The other end of the rod is fixedly connected to a fixing block. An anti-detachment unit that cooperates with the fixing block is installed on the mounting ring.

[0009] Preferably, the anti-detachment unit includes a movable ring sleeved on the outside of the mounting ring, a plurality of side plates are fixedly connected to the bottom of the movable ring, a first receiving groove is opened on the side plate to cooperate with the fixing block, and the fixing block is located in the corresponding first receiving groove, and a stop member that cooperates with the movable ring is installed on the mounting ring.

[0010] Preferably, the stop includes stop blocks respectively disposed on both sides of the mounting ring, two second receiving grooves are provided on the movable ring, and first grooves are respectively provided on both sides of the mounting ring. One end of the stop block is located in the second receiving groove, and the other end of the stop block is located in the first groove. The stop block and the inner wall of the first groove are connected by a first compression spring.

[0011] Preferably, the bottom of the locking ring is provided with anti-slip texture that cooperates with the first nut.

[0012] Preferably, the elastic element includes a plurality of fixed posts fixedly installed on the top of the mounting ring. The bottom of the fixed post is provided with a second groove, and a second compression spring is provided in the second groove. The second compression spring passes through the mounting ring, and the two ends of the second compression spring are in contact with the inner walls of the movable post and the second groove, respectively.

[0013] The beneficial effects of this utility model are as follows: By releasing the locking structure from the locking of the mounting ring, the mounting ring moves relative to the second nut, so that the elastic element no longer exerts a reverse force on the first and second nuts. At this time, the operator can easily rotate the second nut in the opposite direction to disengage it from the bolt, thus releasing the self-locking relationship between the first and second nuts. By compressing the elastic element, the locking ring presses against the first nut. Finally, the reverse force of the elastic element makes the threads on the first and second nuts tightly engage with the bolt threads. By releasing the mounting ring through the locking structure, the elastic element is depressurized, the reverse force disappears, and the second nut can be easily unscrewed. The self-locking force no longer depends on the operator's feeling when tightening the second nut, but is determined by the elastic element. As long as it is tightened properly, the reverse force it provides is constant and predictable, ensuring a consistent anti-loosening effect every time it is installed. Simply releasing the elastic pressure of the elastic element immediately releases the opposing state between the first and second nuts, allowing them to be easily unscrewed like ordinary nuts, which greatly improves maintenance efficiency. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the second nut in an embodiment of the present invention;

[0017] Figure 3This is a schematic diagram of the structure of the movable ring in an embodiment of the present invention;

[0018] Figure 4 This is a schematic diagram of the structure of the mounting ring in an embodiment of the present invention;

[0019] Figure 5 This is a schematic diagram of the structure of the elastic element in an embodiment of the present utility model;

[0020] Figure 6 This is a structural schematic diagram of the disassembled elastic element in an embodiment of this utility model.

[0021] The diagram is marked as follows:

[0022] 1. First nut; 2. Second nut; 3. Locking ring; 4. Movable column; 5. Through hole; 6. Mounting ring; 7. Support part; 8. Insert rod; 9. Fixing block; 10. Slot; 11. Movable ring; 12. Side plate; 13. First receiving groove; 14. Stop block; 15. First groove; 16. First compression spring; 17. Second receiving groove; 18. Fixing column; 19. Second groove; 20. Second compression spring. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments.

[0024] It should be noted that, unless otherwise defined, the technical or scientific terms used in this utility model should have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0025] This specification provides one or more embodiments of a high-strength self-locking nut assembly, such as... Figure 1 , Figure 2 and Figure 5As shown, it includes a first nut 1 and a second nut 2 located above the first nut 1. The top of the first nut 1 is in contact with a locking ring 3. The top of the locking ring 3 is fixedly connected to several movable posts 4. The second nut 2 is provided with several through holes 5 that cooperate with the movable posts 4. The top of the movable posts 4 is located in the through holes 5.

[0026] The top of the second nut 2 is contacted by a mounting ring 6, on which an elastic element that mates with the movable column 4 is mounted. The second nut 2 is also equipped with a locking structure that mates with the mounting ring 6. The operator first rotates and tightens the first nut 1 into place, then rotates and tightens the second nut 2 into place. During the tightening process, the second nut 2 drives the locking ring 3 to rotate synchronously via the movable column 4. The second nut 2 applies pressure to the movable column 4 and the locking ring 3 through the elastic element, causing the bottom of the locking ring 3 to fit tightly against the top of the first nut 1. When the second nut 2 is fully tightened, the elastic element applies opposing forces to the first nut 1 and the second nut 2. This force causes the threaded bevels on the first nut 1 and the second nut 2 to press tightly against the threaded bevels of the bolt, thus achieving self-locking of the first nut 1 and the second nut 2. To release the self-locking, the locking structure releases the locking of the mounting ring 6, allowing the mounting ring 6 to move relative to the second nut 2, thus allowing the elastic element to... No longer applying a counterforce to the first nut 1 and the second nut 2, the operator can easily rotate the second nut 2 in the opposite direction to disengage it from the bolt, thus releasing the self-locking relationship between the first nut 1 and the second nut 2. By compressing the elastic element, the locking ring 3 presses the first nut 1 tightly. Ultimately, the counterforce of the elastic element causes the threads on the first nut 1 and the second nut 2 to tightly engage with the bolt threads. The locking structure releases the installation ring 6, the elastic element is depressurized, the counterforce disappears, and the second nut 2 can be easily unscrewed. The self-locking force no longer depends on the operator's feeling when tightening the second nut 2, but is determined by the elastic element. As long as it is tightened properly, the counterforce it provides is constant and predictable, ensuring a consistent anti-loosening effect for each installation. Simply releasing the elastic pressure of the elastic element immediately releases the opposing state between the first nut 1 and the second nut 2, allowing them to be easily unscrewed like ordinary nuts, which greatly improves maintenance efficiency.

[0027] In embodiments of this utility model, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, the locking structure includes several support parts 7 fixedly installed at the bottom of the mounting ring 6. The support parts 7 are in contact with the side walls of the second nut 2. A rod 8 passes through the support part 7. Several slots 10 are provided on the second nut 2. One end of the rod 8 is located in the corresponding slot 10. The other end of the rod 8 is fixedly connected to a fixing block 9. An anti-detachment unit that cooperates with the fixing block 9 is installed on the mounting ring 6. The anti-detachment unit includes a movable ring 11 sleeved on the outside of the mounting ring 6. Several side plates 12 are fixedly connected to the bottom of the movable ring 11. The side plates 12 are provided with first receiving grooves 13 that cooperate with the fixing block 9, and the fixing block 9 is located in the corresponding first receiving groove 13. A stop member that cooperates with the movable ring 11 is installed on the mounting ring 6. The stop member includes stop blocks 14 respectively provided on both sides of the mounting ring 6. Two second receiving grooves 17 are provided on the movable ring 11. The two sides of the mounting ring 6 are respectively provided with second receiving grooves 14. A groove 15 is provided, with one end of the stop block 14 located in the second receiving groove 17 and the other end located in the first groove 15. The stop block 14 and the inner wall of the first groove 15 are connected by a first compression spring 16. When it is necessary to release the locking of the mounting ring 6, the operator drives the stop block 14 to slide relative to the mounting ring 6, and the first compression spring 16 is compressed so that the stop block 14 is no longer located in the second receiving groove 17, thus releasing the restriction on the position of the movable ring 11. The operator drives the movable ring 11 and the side plate 12 to move upward so that the fixed block 9 is no longer located in the first receiving groove 13, thus releasing the fixation of the fixed block 9. The operator drives the fixed block 9 and the insertion rod 8 to move relative to the support part 7 so that the support part 7 is disengaged from the slot 10, thus releasing the restriction on the position of the mounting ring 6. The operator drives the mounting ring 6 to move upward so that the support part 7 is no longer located on one side of the second nut 2, thus completing the removal of the mounting ring 6.

[0028] In embodiments of this utility model, such as Figure 1 , Figure 5 and Figure 6As shown, the bottom of the locking ring 3 is provided with anti-slip texture to cooperate with the first nut 1. The elastic element includes several fixed posts 18 fixedly installed on the top of the mounting ring 6. The bottom of the fixed post 18 is provided with a second groove 19. A second compression spring 20 is provided in the second groove 19. The second compression spring 20 passes through the mounting ring 6. The two ends of the second compression spring 20 are in contact with the movable post 4 and the inner wall of the second groove 19, respectively. When the second nut 2 and the first nut 1 are both rotated and locked in place, the second compression spring 20 is in a compressed state. The second compression spring 20 exerts pressure on the movable post 4 and the locking ring 3. When a downward force is applied, the second compression spring 20 applies an upward force to the fixing post 18 and the mounting ring 6, so that the locking ring 3 and the first nut 1 are tightly pressed together. The anti-slip texture design reduces the possibility of the locking ring 3 sliding relative to the first nut 1. When the locking of the mounting ring 6 is released, the operator drives the mounting ring 6 to move upward, and the mounting ring 6 drives the fixing post 18 to move upward, so that the second compression spring 20 returns to its deformation. The second compression spring 20 no longer applies a reverse force to the first nut 1 and the second nut 2, thus releasing the locking relationship between the first nut 1 and the second nut 2.

[0029] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples; within the framework of the present invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in the details for the sake of brevity.

[0030] This utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A high-strength self-locking nut assembly, comprising a first nut (1) and a second nut (2) disposed above the first nut (1), characterized in that, The top of the first nut (1) is provided with a locking ring (3), and the top of the locking ring (3) is fixedly connected with several movable columns (4). The second nut (2) is provided with several through holes (5) that cooperate with the movable columns (4), and the top of the movable columns (4) is located in the through holes (5). The top of the second nut (2) is provided with a mounting ring (6), and an elastic element that cooperates with the movable column (4) is installed on the mounting ring (6). The second nut (2) is provided with a locking structure that cooperates with the mounting ring (6).

2. The high-strength self-locking nut assembly according to claim 1, characterized in that, The locking structure includes several support parts (7) fixedly installed at the bottom of the mounting ring (6). The support parts (7) are in contact with the side wall of the second nut (2). A rod (8) passes through the support part (7). Several slots (10) are opened on the second nut (2). One end of the rod (8) is located in the corresponding slot (10). The other end of the rod (8) is fixedly connected to a fixing block (9). An anti-detachment unit that cooperates with the fixing block (9) is installed on the mounting ring (6).

3. The high-strength self-locking nut assembly according to claim 2, characterized in that, The anti-detachment unit includes a movable ring (11) sleeved on the outside of the mounting ring (6). Several side plates (12) are fixedly connected to the bottom of the movable ring (11). The side plates (12) are provided with a first receiving groove (13) that cooperates with the fixing block (9). The fixing block (9) is located in the corresponding first receiving groove (13). The mounting ring (6) is equipped with a stopper that cooperates with the movable ring (11).

4. The high-strength self-locking nut assembly according to claim 3, characterized in that, The stopper includes stop blocks (14) respectively disposed on both sides of the mounting ring (6). Two second receiving grooves (17) are opened on the movable ring (11). First grooves (15) are respectively opened on both sides of the mounting ring (6). One end of the stop block (14) is located in the second receiving groove (17), and the other end of the stop block (14) is located in the first groove (15). The inner walls of the stop block (14) and the first groove (15) are connected by a first compression spring (16).

5. The high-strength self-locking nut assembly according to claim 1, characterized in that, The bottom of the locking ring (3) is provided with anti-slip texture that cooperates with the first nut (1).

6. The high-strength self-locking nut assembly according to claim 1, characterized in that, The elastic element includes several fixed posts (18) fixedly installed on the top of the mounting ring (6). A second groove (19) is provided at the bottom of the fixed post (18). A second compression spring (20) is provided in the second groove (19). The second compression spring (20) passes through the mounting ring (6). The two ends of the second compression spring (20) are in contact with the movable post (4) and the inner wall of the second groove (19), respectively.

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