Anti-seismic self-locking nut

Abstract

The utility model relates to the technical field of self-locking nuts, and discloses an anti-seismic self-locking nut which comprises a nut body, a circular groove is formed in the top of the nut body, a mounting groove is formed in the bottom of the circular groove, a pushing groove is formed in the bottom of the nut body, and the interior of the pushing groove is connected with the interior of the mounting groove. And a first bolt is arranged in the circular groove. According to the anti-seismic self-locking nut, through cooperative use of the nut body, the circular groove, the mounting groove and the push groove, when a first bolt is rotated, the first bolt can drive a lifting column to rotate, and due to the fact that a fixing rod is slidably connected to the interior of an insertion groove, the fixing rod plays a limiting role on the lifting column; and when the lifting column descends, an inserting block installed at the bottom of the lifting column can be inserted into a fixing groove formed in the top of the limiting disc, and therefore the nut body can be fixed.

Description

Technical Field

[0001] The utility model relates to the technical field of self-locking nuts, in particular to a seismic-resistant self-locking nut. Background Art

[0002] With the continuous development of science and technology, self-locking nuts are a special type of nuts. Their main functions are to prevent loosening and vibration. They are used in special occasions where it is necessary to prevent the nuts from loosening due to vibration and other reasons during use.

[0003] An existing self-locking nut can be referred to in the Chinese utility model patent with authorization publication number CN212959475U, which discloses a self-locking nut, "including a body, the body is axially through and the outer wall of the body has a wrench portion, the inner wall of the body has a tapered section that gradually tapers toward one end of the body, the inner wall of the body has a guide surface, a locking sleeve is axially inserted into the body, the locking sleeve has an axially through internal threaded hole, the locking sleeve has a contraction section adapted to the contraction section, the contraction section has a plurality of open grooves axially through to the end, and the locking sleeve has a positioning portion that is circumferentially fixed to the guide surface and can cause the body to move axially. The utility model has the advantages of compact structure, easy operation and good locking effect."

[0004] When the above device is in use, the locking sleeve has a contraction section adapted to the contraction section, the contraction section has a plurality of open grooves axially extending to the end, and the locking sleeve has a positioning portion that is circumferentially fixed to the guide surface and can cause the body to axially displace. When the above device is in use, it is not convenient to fix the nut, so that when vibrated, it is easy to cause the nut to rotate, thereby causing the nut to fall off. For this reason, we propose a seismic-resistant self-locking nut. Utility Model Content

[0005] In response to the shortcomings of the existing technology, the utility model provides a seismic-resistant self-locking nut, which has the advantages of strong practicality, good stability, easy fixation of the nut and easy seismic resistance. It solves the problem that traditional seismic-resistant self-locking nuts are not easy to fix the nut, which makes it easy to cause the nut to rotate during vibration, thereby causing the nut to fall off.

[0006] The utility model provides the following technical solution: an anti-seismic self-locking nut, comprising a nut body, a circular groove is provided on the top of the nut body, a mounting groove is provided on the bottom of the circular groove, a push groove is provided on the bottom of the nut body, and the interior of the push groove is connected to the interior of the mounting groove, a first bolt is provided inside the circular groove, and the outside of the first bolt is rotatably connected to the inner wall of the circular groove, the external thread of the first bolt is connected to the screw groove opened at the top of the lifting column, the bottom of the lifting column is provided with a slot, the inside of the slot is slidably connected to the outside of the fixing rod, and the fixing rod is fixedly connected to the inside of the mounting groove, the bottom of the lifting column is fixedly connected with an insert block, the top of the nut body is provided with a first threaded groove, the inside of the first threaded groove is threadedly connected to the second bolt, the external thread of the second bolt is connected to a limiting plate, and the top of the limiting plate is provided with a fixing groove.

[0007] As a preferred technical solution of the present invention, four slots are provided at the bottom of the lifting column, and the slots pass through the top of the lifting column. The four slots are evenly arranged at the bottom of the lifting column, and the slots are away from the outside of the first bolt.

[0008] As a preferred technical solution of the present invention, the outer portion of the insert block near the top of the lifting column is the same size as the inner portion of the push slot, and the bottom of the insert block and the top of the push slot are in the same straight line.

[0009] As an optimal technical solution of the present invention, a second thread groove is provided at the bottom of the second bolt, and the internal thread of the second thread groove is connected to the thread groove provided on the surface of the screw rod. A round block is provided at the bottom of the screw rod, and a push block is provided at the top of the round block.

[0010] As a preferred technical solution of the present invention, the rotation direction of the screw is opposite to the rotation direction of the limit plate, and the length of the screw is smaller than the length of the push block.

[0011] As a preferred technical solution of the present invention, the internal thread of the second thread groove is a 30° wedge-shaped inclined surface, and two circular grooves are opened on the top of the nut body, and the two circular grooves are on the same straight line.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. The seismic-resistant self-locking nut cooperates with the nut body, the circular groove, the mounting groove and the push groove. When the first bolt is rotated, the first bolt can drive the lifting column to rotate. Since the internal sliding connection of the slot is connected to the fixing rod, the fixing rod acts as a limiter for the lifting column, so that the first bolt drives the lifting column to move up and down. When the lifting column is lowered, the plug installed at the bottom can be inserted into the fixing groove opened on the top of the limit plate, thereby fixing the nut body.

[0014] 2. The seismic-resistant self-locking nut, through the cooperation of the second bolt and the second thread groove, rotates the screw at the same time, thereby moving the round block and the push block, so that the top of the push block can support the bottom of the limit plate. Since the rotation directions of the screw and the limit plate are opposite, the limit plate and the screw can be prevented from moving during vibration. At the same time, the internal thread angle of the second thread groove, and then the top thread line of the screw tightly enter the wedge-shaped inclined surface of the second thread groove and are clamped, so that the screw can more effectively resist loosening when subjected to vibration or impact. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the front structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model;

[0017] Figure 3 For this utility model Figure 2 A local enlarged structural diagram of point A;

[0018] Figure 4 This is a schematic diagram of the explosion structure of the utility model.

[0019] In the figure: 1. Nut body; 2. Round groove; 3. Mounting groove; 4. Push groove; 5. First bolt; 6. Lifting column; 7. Slot; 8. Fixing rod; 9. Insert block; 10. Second bolt; 11. Limit plate; 12. Fixing groove; 13. First threaded groove; 14. Screw; 15. Round block; 16. Push block; 17. Second threaded groove. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] See also Figure 1-4, an anti-seismic self-locking nut includes a nut body 1, a circular groove 2 is opened at the top of the nut body 1, a mounting groove 3 is opened at the bottom of the circular groove 2, a push groove 4 is opened at the bottom of the nut body 1, and the interior of the push groove 4 is connected to the interior of the mounting groove 3, a first bolt 5 is provided inside the circular groove 2, and the outside of the first bolt 5 is rotatably connected to the inner wall of the circular groove 2, the external thread of the first bolt 5 is connected to the screw groove opened at the top of the lifting column 6, the bottom of the lifting column 6 is provided with a slot 7, the inside of the slot 7 is slidably connected to the outside of the fixing rod 8, and the fixing rod 8 is fixedly connected to the inside of the mounting groove 3, the bottom of the lifting column 6 is fixedly connected with an insert 9, a first thread groove 13 is opened at the top of the nut body 1, a second bolt 10 is threadedly connected to the inside of the first thread groove 13, the external thread of the second bolt 10 is connected to the limit plate 11, and the top of the limit plate 11 is provided with a A fixing groove 12, two circular grooves 2 are provided on the top of the nut body 1, and a mounting groove 3 is provided at the bottom of the two circular grooves 2, and the diameter of the mounting groove 3 is larger than the diameter of the circular groove 2. A push groove 4 is provided at the bottom of the nut body 1, so that the push groove 4 can be connected to the inside of the mounting groove 3, and the first bolt 5 can be rotatably connected inside the circular groove 2, so that the first bolt 5 can drive the lifting column 6 to rotate when it rotates. Since the sliding connection of the slot 7 is on the outside of the fixing rod 8, the fixing rod 8 can limit the lifting column 6 so that the lifting column 6 can only be lifted and lowered. When the lifting column 6 descends, it can drive the insert block 9 to pass through the inside of the push groove 4 and be inserted into the fixing groove 12 opened on the top of the limit plate 11. A first threaded groove 13 is provided on the top of the nut body 1, so that the second bolt 10 can be threadedly connected to the inside of the first threaded groove 13.

[0022] See also Figure 2 Four slots 7 are provided at the bottom of the lifting column 6, and the slots 7 pass through the top of the lifting column 6. The four slots 7 are evenly arranged at the bottom of the lifting column 6, and the slots 7 are away from the outside of the first bolt 5. Since there are four slots 7 and the four slots 7 are away from the outside of the first bolt 5, it is convenient to limit the lifting column 6.

[0023] See also Figure 4 A second thread groove 17 is provided at the bottom of the second bolt 10, and the internal thread of the second thread groove 17 is connected to the thread groove provided on the surface of the screw rod 14. A round block 15 is provided at the bottom of the screw rod 14, and a push block 16 is provided on the top of the round block 15. The second thread groove 17 is provided at the bottom of the second bolt 10, so that the screw rod 14 can be threadedly connected to the inside of the second thread groove 17, so that when the screw rod 14 rotates, it can drive the round block 15 to move, so that the push block 16 installed on the top of the round block 15 can support the bottom of the limit plate 11.

[0024] See also Figure 4The rotation direction of the screw 14 is opposite to that of the limit plate 11, and the length of the screw 14 is less than the length of the push block 16. Since the rotation directions of the screw 14 and the limit plate 11 are opposite, the rotation of the screw 14 and the limit plate 11 can be prevented during vibration.

[0025] Working principle: when working, when fixing the nut body 1, the nut body 1 is threadedly connected to the outside of the second bolt 10. After the nut body 1 is fixed, the first bolt 5 can be rotated so that the first bolt 5 can lift the lifting column 6 through the fixing rod 8, so that the lifting column 6 can drive the insert block 9 to move downward when it descends, so that the outside of the insert block 9 can pass through the inner wall of the push groove 4, thereby inserting the insert block 9 into the fixing groove 12 opened on the top of the limit plate 11, so as to fix the nut body 1. At the same time, when the second bolt 10 is in operation, the first bolt 5 can be rotated to lift the lifting column 6 through the fixing rod 8, so that the lifting column 6 can drive the insert block 9 to move downward when it descends, so that the outside of the insert block 9 can pass through the inner wall of the push groove 4, thereby inserting the insert block 9 into the fixing groove 12 opened on the top of the limit plate 11, so as to fix the nut body 1. A second thread groove 17 is provided at the bottom, so that when the screw 14 rotates, it can drive the round block 15 and the push block 16 to move. The moving push block 16 can support the bottom of the limit plate 11. Since the rotation directions of the screw 14 and the limit plate 11 are opposite, the rotation of the screw 14 and the limit plate 11 can be prevented during vibration. At the same time, the internal thread angle of the second thread groove 17, and then the top thread line of the screw 14 tightly enter the wedge-shaped inclined surface of the second thread groove 17 and are clamped, so that the screw 14 can more effectively resist loosening when subjected to vibration or impact.

[0026] It should be noted that, in this document, relational terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprise," "include," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article, or device. Without further limitation, an element defined by the phrase "comprising a..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element. Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A seismic-resistant self-locking nut, comprising a nut body (1), characterized in that: The top of the nut body (1) is provided with a circular groove (2), the bottom of the circular groove (2) is provided with a mounting groove (3), the bottom of the nut body (1) is provided with a push groove (4), and the interior of the push groove (4) is connected to the interior of the mounting groove (3), the interior of the circular groove (2) is provided with a first bolt (5), and the exterior of the first bolt (5) is rotatably connected to the inner wall of the circular groove (2), the exterior of the first bolt (5) is threadedly connected to the screw groove provided at the top of the lifting column (6), and the bottom of the lifting column (6) is provided with a screw thread. A slot (7) is provided, the interior of the slot (7) is slidably connected to the exterior of the fixing rod (8), and the fixing rod (8) is fixedly connected to the interior of the mounting slot (3), the bottom of the lifting column (6) is fixedly connected to an insert block (9), a first thread groove (13) is provided on the top of the nut body (1), a second bolt (10) is threadedly connected to the interior of the first thread groove (13), the exterior of the second bolt (10) is threadedly connected to a limiting plate (11), and a fixing slot (12) is provided on the top of the limiting plate (11).

2. The anti-seismic self-locking nut according to claim 1, characterized in that: Four slots (7) are provided at the bottom of the lifting column (6), and the slots (7) pass through the top of the lifting column (6). The four slots (7) are evenly arranged at the bottom of the lifting column (6), and the slots (7) are away from the outside of the first bolt (5).

3. The anti-seismic self-locking nut according to claim 1, characterized in that: The outer portion of the insert block (9) close to the top of the lifting column (6) is the same size as the inner portion of the push groove (4), and the bottom of the insert block (9) and the top of the push groove (4) are on the same straight line.

4. The anti-seismic self-locking nut according to claim 1, characterized in that: A second thread groove (17) is provided at the bottom of the second bolt (10), and the inner thread of the second thread groove (17) is connected to the thread groove provided on the surface of the screw rod (14). A round block (15) is provided at the bottom of the screw rod (14), and a push block (16) is provided at the top of the round block (15).

5. The anti-seismic self-locking nut according to claim 4, characterized in that: The rotation direction of the screw rod (14) is opposite to the rotation direction of the limiting plate (11), and the length of the screw rod (14) is smaller than the length of the push block (16).

6. The anti-seismic self-locking nut according to claim 4, characterized in that: The internal thread of the second thread groove (17) is a 30° wedge-shaped inclined surface. Two circular grooves (2) are provided on the top of the nut body (1), and the two circular grooves (2) are located on the same straight line.

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