Round nut with anti-loosening effect

Abstract

The utility model relates to the technical field of round nuts, discloses a round nut with an anti-loosening effect, and solves the problem that the convenience of the round nut in the using process is greatly reduced due to the fact that the anti-loosening effect of the round nut is achieved by means of external parts. Then the round nut is aligned with the bolt to be screwed, in the screwing process, the bolt can push the clamping block to compress the first spring, the clamping block retreats into the second groove till the end face of the round nut makes contact with the lock washer, at the moment, the clamping block corresponds to the first groove in position, the first spring resets and pushes the clamping block to enter the first groove and abut against the first groove, and rapid self-locking of the round nut is completed; and the anti-loosening effect is stable, additional parts do not need to be used, and the operation convenience and practicability are greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of round nuts, in particular to a round nut with an anti-loosening effect. Background Technique

[0002] Round nuts are often used in conjunction with stop washers for round nuts. During assembly, the inner tongue of the washer is inserted into the groove on the shaft, and the outer tongue of the washer is embedded into the groove of the round nut, and the nut is locked, or double nuts are used for anti-loosening.

[0003] The existing Chinese patent with the publication number CN213260674U discloses a round nut locking device, which includes a plurality of screws 1. A plurality of screw holes 22 are provided on the round nut 2, and each screw 1 is respectively matched with the corresponding screw hole 22 for locking. The two parts located at the upper and lower ends of the groove 21 are locked by fasteners, causing the round nut 2 to deform. In this way, the round nut 2 will generate a shearing force on the shaft. If the round nut 2 is to be loosened, this shearing force needs to be overcome. Therefore, the anti-loosening effect of the round nut 2 is further provided. However, this structural design requires corresponding screws in terms of quantity and specifications to be prepared in advance during its assembly, otherwise the assembly cannot be completed, resulting in the lack of convenience in assembly, and thus the practicality is greatly reduced. Content of the Utility Model

[0004] The purpose of the utility model is to provide a round nut with an anti-loosening effect. By using this device for work, the problem that the round nut needs to rely on external parts to achieve the anti-loosening effect, resulting in a significant reduction in its convenience during use, is solved.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A round nut with an anti-loosening effect includes a bolt. A stop washer is sleeved on the outer side of the bolt. A round nut is arranged at the upper end of the stop washer. An elastic member is arranged inside the round nut. A groove one is provided on the outer surface of the bolt. A groove two is provided inside the round nut. A spring one is fixedly installed inside the groove two. One end of the spring one is fixedly installed with a block. The block is matched with both the groove two and the groove one. The round nut is in threaded connection with the bolt. First, the stop washer is sleeved on the outer side of the bolt, and then the round nut is aligned with the bolt and screwed. During the screwing process, the bolt will push the block to compress the spring one, causing the block to retract into the groove two until the end face of the round nut contacts the stop washer. At this time, the position of the block corresponds to the groove one. The spring one resets and pushes the block into the groove one and abuts tightly, completing the quick self-locking of the round nut. Furthermore, the round nut cannot rotate, the anti-loosening effect is stable, and no additional parts are required. The operation convenience and practicality are greatly improved.

[0006] Preferably, a circular groove is formed through the inside of the round nut, and the circular groove communicates with groove two. One end of the clamping block close to the first spring is fixedly installed with a pull rod, and the end of the pull rod away from the clamping block is fixedly installed with a pull ring. The pull rod is installed through the inside of the circular groove and is slidably connected. When it is necessary to disassemble the round nut, the pull rod is taken out by pulling the pull ring. The pull rod drives the clamping block to compress the first spring, so that the clamping block moves away from groove one and retreats back into groove two. At this time, the round nut can be rotated to complete the quick disassembly, and the operation is simple and convenient.

[0007] Preferably, a plurality of grooves are formed on the outer surface of the bolt, and a plurality of convex blocks are fixedly installed at the lower end of the stop washer. The convex blocks correspond to and match the grooves one by one. While sleeving the stop washer on the outside of the bolt, the convex blocks correspond to and match the grooves one by one to achieve preliminary fixation between the two and prevent loosening.

[0008] Preferably, a plurality of rectangular blocks one are fixedly installed on the outer side of the lower end of the round nut, and a rectangular groove one is formed on the lower surface of the rectangular block one. A locking and rotating mechanism is arranged inside the stop washer. An annular groove is formed inside the stop washer, a groove three is formed on the outer surface of the stop washer, and the groove three communicates with the annular groove. A rectangular groove two is formed at the upper end of the stop washer, and the rectangular groove two communicates with the annular groove. The locking and rotating mechanism includes an annular plate. A plurality of second springs are fixedly installed at the lower end of the annular plate, and the ends of the second springs away from the annular plate are fixedly connected to the surface of the annular groove. The annular plate matches the annular groove and is in sliding contact. A plurality of rectangular blocks two are fixedly installed at the upper end of the annular plate, and the rectangular blocks two correspond to and penetrate through the rectangular groove two one by one. A pressing plate is fixedly installed on the outer side of the annular plate, and the pressing plate is installed through the inside of the groove three and is slidably connected. First, by pressing the pressing plate, the annular plate is driven to compress the second springs, so that the upper end surface of the rectangular block two is flush with the rectangular groove two. At this time, the round nut is aligned with the bolt and screwed until the clamping block enters the groove one and abuts tightly. At this time, the rectangular groove one corresponds to the rectangular block two one by one. Then, the pressing plate is released, and the second springs reset and drive the annular plate and the rectangular block two to jack up, so that the rectangular block two matches and abuts against the rectangular groove one, further improving the anti-loosening performance of the round nut.

[0009] Preferably, a plate groove is formed on the upper surface of the stop washer, a slide rail is fixedly installed on the outer side of the round nut, a slide plate is slidably installed inside the slide rail, a third spring is fixedly installed at the upper end of the slide plate, a top plate is fixedly installed at the upper end of the third spring, and the top plate is fixedly connected to the outer surface of the round nut. The slide plate matches the plate groove. When the rectangular block two matches and abuts against the rectangular groove one, the slide plate corresponds to the plate groove, and the third spring pushes the slide plate into the plate groove and abuts tightly to achieve further locking and rotation, improving the anti-loosening performance of the round nut.

[0010] Preferably, two sets of the first groove, the second groove and the circular groove are provided and are symmetrically arranged. At the same time, two sets of elastic members are provided, and their structural compositions and functions are exactly the same. By providing two sets of elastic members and arranging them symmetrically, the torsional force generated during the anti-loosening process can be well shared and borne, thereby greatly extending its service life.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] For a circular nut with an anti-loosening effect proposed by the present utility model, first, a stop washer is sleeved on the outside of the bolt, and then the circular nut is aligned with the bolt and screwed. During the screwing process, the bolt will push the block to compress the first spring, causing the block to retract into the second groove until the end face of the circular nut contacts the stop washer. At this time, the block corresponds to the position of the first groove, and the first spring resets and pushes the block into the first groove and abuts tightly, completing the quick self-locking of the circular nut. Furthermore, the circular nut cannot rotate, the anti-loosening effect is stable, and no additional parts are required, greatly improving the operation convenience and practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is the overall structural schematic diagram of the present utility model;

[0014] Figure 2 is the structural schematic diagram of the bolt of the present utility model;

[0015] Figure 3 is the structural schematic diagram of the stop washer of the present utility model;

[0016] Figure 4 is the structural schematic diagram of the stop washer of the present utility model;

[0017] Figure 5 is the structural schematic diagram of the locking and rotating mechanism of the present utility model;

[0018] Figure 6 is the structural schematic diagram of the circular nut of the present utility model;

[0019] Figure 7 is the structural schematic diagram of the elastic member of the present utility model.

[0020] In the figure: 1. Bolt; 11. First groove; 12. Groove; 2. Stop washer; 21. Protrusion; 22. Locking and rotating mechanism; 221. Ring plate; 222. Second spring; 223. Pressing plate; 224. Second rectangular block; 23. Plate groove; 24. Ring groove; 25. Third groove; 26. Second rectangular groove; 3. Circular nut; 31. Second groove; 32. Circular groove; 33. First rectangular block; 34. First rectangular groove; 35. Slide rail; 36. Slide plate; 37. Third spring; 38. Top plate; 4. Elastic member; 41. First spring; 42. Block; 43. Pull rod; 44. Pull ring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0022] To further understand the content of the present utility model, the present utility model will be described in detail with reference to the accompanying drawings.

[0023] Combined with Figure 1-2 、 Figure 6-7 A round nut with an anti-loosening effect, including a bolt 1. A stop washer 2 is sleeved on the outer side of the bolt 1. A round nut 3 is arranged at the upper end of the stop washer 2. An elastic member 4 is arranged inside the round nut 3. A groove 11 is formed on the outer surface of the bolt 1. A groove 31 is formed inside the round nut 3. A spring 41 is fixedly installed inside the groove 31. One end of the spring 41 is fixedly installed with a block 42. The block 42 is matched with both the groove 31 and the groove 11. The round nut 3 is in threaded connection with the bolt 1. First, the stop washer 2 is sleeved on the outer side of the bolt 1, and then the round nut 3 is aligned with the bolt 1 and screwed. During the screwing process, the bolt 1 will push the block 42 to compress the spring 41, so that the block 42 retracts into the groove 31 until the end face of the round nut 3 contacts the stop washer 2. At this time, the position of the block 42 corresponds to the groove 11, and the spring 41 resets and pushes the block 42 into the groove 11 and abuts tightly, completing the quick self-locking of the round nut 3. Furthermore, the round nut 3 cannot rotate, the anti-loosening effect is stable and no additional parts are required, and the operation convenience and practicability are greatly improved.

[0024] Combined with Figure 6-7 A round groove 32 is formed through the inside of the round nut 3, and the round groove 32 is communicated with the groove 31. One end of the block 42 close to the spring 41 is fixedly installed with a pull rod 43. The other end of the pull rod 43 away from the block 42 is fixedly installed with a pull ring 44. The pull rod 43 is installed through the inside of the round groove 32 and is slidably connected. When the round nut 3 needs to be disassembled, the pull ring 44 is pulled to take out the pull rod 43. The pull rod 43 drives the block 42 to compress the spring 41, so that the block 42 moves away from the groove 11 and retracts into the groove 31 again. At this time, the round nut 3 can be rotated to complete the quick disassembly, and the operation is simple and convenient.

[0025] Combined with Figure 2-3, a plurality of grooves 12 are formed on the outer surface of the bolt 1, and a plurality of bumps 21 are fixedly installed at the lower end of the stop washer 2. The bumps 21 correspond to and match the grooves 12 one by one. While the stop washer 2 is sleeved on the outside of the bolt 1, the bumps 21 correspond to and match the grooves 12 one by one, realizing the preliminary fixation between the two and preventing loosening.

[0026] Combined with Figure 3-6 , a plurality of rectangular blocks one 33 are fixedly installed on the outer side of the lower end of the round nut 3, a rectangular groove one 34 is formed on the lower surface of the rectangular block one 33, a locking and rotating mechanism 22 is arranged inside the stop washer 2, a ring groove 24 is formed inside the stop washer 2, a groove three 25 is formed on the outer surface of the stop washer 2, the groove three 25 is communicated with the ring groove 24, a rectangular groove two 26 is formed at the upper end of the stop washer 2, and the rectangular groove two 26 is communicated with the ring groove 24. The locking and rotating mechanism 22 includes a ring plate 221, a plurality of springs two 222 are fixedly installed at the lower end of the ring plate 221, one end of the spring two 222 far away from the ring plate 221 is fixedly connected with the surface of the ring groove 24, the ring plate 221 matches and is in sliding contact with the ring groove 24, a plurality of rectangular blocks two 224 are fixedly installed at the upper end of the ring plate 221, the rectangular blocks two 224 correspond to and penetrate through the rectangular groove two 26 one by one, a pressing plate 223 is fixedly installed on the outer side of the ring plate 221, the pressing plate 223 is installed through the groove three 25 and is in sliding connection. First, by pressing the pressing plate 223, the ring plate 221 drives the spring two 222 to be compressed, so that the upper end surface of the rectangular block two 224 is flush with the rectangular groove two 26. At this time, the round nut 3 is aligned with the bolt 1 and screwed until the block 42 enters the groove one 11 and abuts tightly. At this time, the rectangular groove one 34 corresponds to the rectangular block two 224 one by one. Then, the pressing plate 223 is released, and the spring two 222 resets and drives the ring plate 221 and the rectangular block two 224 to jack up, so that the rectangular block two 224 matches and abuts tightly with the rectangular groove one 34, further improving the anti-loosening performance of the round nut 3.

[0027] Combined with Figure 4 , Figure 6 , a plate groove 23 is formed on the upper surface of the stop washer 2, a slide rail 35 is fixedly installed on the outer side of the round nut 3, a slide plate 36 is slidably installed inside the slide rail 35, a spring three 37 is fixedly installed at the upper end of the slide plate 36, a top plate 38 is fixedly installed at the upper end of the spring three 37, the top plate 38 is fixedly connected with the outer surface of the round nut 3, the slide plate 36 matches the plate groove 23. When the rectangular block two 224 matches and abuts tightly with the rectangular groove one 34, the slide plate 36 corresponds to the plate groove 23, and the spring three 37 pushes the slide plate 36 into the plate groove 23 and abuts tightly, realizing further locking and rotation and improving the anti-loosening performance of the round nut 3.

[0028] Combined with Figure 2 , Figure 6-7, there are two sets of groove one 11, groove two 31 and circular groove 32, and they are in a symmetric state. At the same time, there are two sets of elastic members 4, and their structural compositions and functions are exactly the same. By setting two sets of elastic members 4 and distributing them symmetrically, the torsional force generated during the anti-loosening process can be well shared and borne, thereby greatly extending its service life.

[0029] The specific working process and principle of the present utility model: While sleeving the stop washer 2 on the outside of the bolt 1, the convex blocks 21 and the grooves 12 correspond to and match each other one by one, realizing the preliminary fixation between the two and preventing loosening. Then, by pressing the pressing plate 223, the ring plate 221 drives the compression of the spring two 222, so that the upper end surface of the rectangular block two 224 is flush with the rectangular groove two 26. Subsequently, the round nut 3 is aligned with the bolt 1 and screwed. During the screwing process, the bolt 1 will push the block 42 to compress the spring one 41, so that the block 42 retracts into the groove two 31 until the end surface of the round nut 3 contacts the stop washer 2. At this time, the block 42 corresponds to the groove one 11, and the spring one 41 resets and pushes the block 42 into the groove one 11 and abuts tightly, completing the quick self-locking of the round nut 3. Furthermore, the round nut 3 cannot rotate. At this time, the rectangular groove one 34 and the rectangular block two 224 correspond to each other one by one. Then, the pressing plate 223 is released, and the spring two 222 resets and drives the ring plate 221 and the rectangular block two 224 to jack up upward, so that the rectangular block two 224 matches and abuts tightly with the rectangular groove one 34, further improving the anti-loosening performance of the round nut 3. Finally, the spring three 37 pushes the sliding plate 36 into the plate groove 23 and abuts tightly, realizing further locking and rotation prevention.

[0030] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0031] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A round nut with an anti-loosening effect, comprising a bolt (1), a locking washer (2) is sleeved on the outer side of the bolt (1), a round nut (3) is arranged on the upper end of the locking washer (2), and an elastic member (4) is arranged inside the round nut (3), characterized in that: The outer surface of the bolt (1) is provided with a groove 1 (11), the interior of the round nut (3) is provided with a groove 2 (31), a spring 1 (41) is fixedly installed inside the groove 2 (31), a clamping block (42) is fixedly installed at one end of the spring 1 (41), the clamping block (42) matches the groove 2 (31) and the groove 1 (11), and the round nut (3) is threadedly connected to the bolt (1).

2. A round nut with anti-loosening effect according to claim 1, characterized in that: A circular groove (32) is formed inside the round nut (3), the circular groove (32) is connected to the second groove (31), a pull rod (43) is fixedly installed on one end of the clamping block (42) close to the spring one (41), and a pull ring (44) is fixedly installed on one end of the pull rod (43) away from the clamping block (42), and the pull rod (43) is installed inside the circular groove (32) and is slidably connected.

3. The round nut with anti-loosening effect according to claim 1, characterized in that: The outer surface of the bolt (1) is provided with a plurality of grooves (12), and the lower end of the stop washer (2) is fixedly mounted with a plurality of protrusions (21), and the protrusions (21) correspond to and match the grooves (12) one by one.

4. The round nut with anti-loosening effect according to claim 1, characterized in that: A plurality of square blocks (33) are fixedly mounted on the outer side of the lower end of the round nut (3), a square groove (34) is provided on the lower surface of the square block (33), a locking mechanism (22) is provided inside the stop washer (2), an annular groove (24) is provided inside the stop washer (2), a groove (25) is provided on the outer surface of the stop washer (2), the groove (25) is connected to the annular groove (24), a square groove (26) is provided on the upper end of the stop washer (2), the square groove (26) is connected to the annular groove (24), and the locking mechanism (22) includes a ring plate (221). A plurality of springs (222) are fixedly mounted on the lower end of the ring plate (221), one end of the spring (222) away from the ring plate (221) is fixedly connected to the surface of the ring groove (24), the ring plate (221) matches and is in sliding contact with the ring groove (24), a plurality of square blocks (224) are fixedly mounted on the upper end of the ring plate (221), the square blocks (224) correspond to the square grooves (26) one by one and are arranged through them, a pressure plate (223) is fixedly mounted on the outer side of the ring plate (221), the pressure plate (223) is installed through the inside of the groove (25) and is slidably connected.

5. The round nut with anti-loosening effect according to claim 1, characterized in that: A plate groove (23) is formed on the upper surface of the stop washer (2); a slide rail (35) is fixedly mounted on the outer side of the round nut (3); a slide plate (36) is slidably mounted on the inner side of the slide rail (35); a spring three (37) is fixedly mounted on the upper end of the slide plate (36); a top plate (38) is fixedly mounted on the upper end of the spring three (37); the top plate (38) is fixedly connected to the outer surface of the round nut (3); and the slide plate (36) matches the plate groove (23).

6. The round nut with anti-loosening effect according to claim 1, characterized in that: The groove 1 (11), the groove 2 (31) and the circular groove (32) are each provided with two groups and are symmetrical. At the same time, the elastic member (4) is provided with two groups, and the structural composition and function are completely the same.

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