A new type of self-locking nut structure

Abstract

The present invention discloses a novel self-locking nut structure, which relates to the technical field of metal sheet processing. The present invention includes a support base, a support ring is fixed on the top of the support base, circular through grooves that communicate with each other are opened inside both the support base and the support ring, positioning pins are slidably connected inside the support ring, a limiting post is fixed on the top of the end of the positioning pin away from the circular through groove, and a rotating sleeve is slidably connected on the top of the support base and outside the support ring. Through the cooperation of the rotating sleeve, the positioning pin, the limiting post, the engaging groove and the arc-shaped limiting groove, when the rotating sleeve rotates outside the support ring, it can drive the positioning pin to move, and then the self-locking nut can be positioned by the positioning pin entering the corresponding fixing sleeve, so that the support and positioning of the fixed object can be quickly and conveniently provided.

Description

Technical Field

[0001] The present invention belongs to the technical field of metal sheet processing, and particularly relates to a novel self-locking nut structure. Background Art

[0002] As is well known, in order to more stably fix an object or connect two objects, we usually use the cooperation of screws and nuts or rivets. During use, the nut may become loose on its own due to vibration or other reasons. To prevent this phenomenon, self-locking nuts were invented.

[0003] A self-locking nut is a special nut that can axially position by means of a positioning pin extending into and inserting into a fixing sleeve hole; the main functions of a self-locking nut are anti-loosening and anti-vibration; it is used in special occasions; its working principle is generally by The pin column is inserted into the fixing sleeve hole for self-locking; the types of self-locking nuts classified by function include those with nylon rings embedded, necked-in, and with metal anti-loosening devices.

[0004] The existing self-locking nuts are not convenient to use and are not easy to limit the position. Therefore, a novel self-locking nut structure is designed to provide another technical solution to the technical problem that the existing self-locking nuts are not convenient to use and are not easy to limit the position. Summary of the Invention

[0005] The purpose of the present invention is to provide a novel self-locking nut structure to solve the problems raised in the above background art.

[0006] To solve the above technical problems, the present invention is realized through the following technical solutions: A novel self-locking nut structure includes a support base, a support ring is fixed on the top of the support base, circular through grooves that communicate with each other are opened inside both the support base and the support ring, a positioning pin is slidably connected inside the support ring, a limiting column is fixed on the top of the positioning pin away from the circular through groove, and a rotating sleeve is slidably connected on the top of the support base and outside the support ring.

[0007] Further, a card slot is opened on the outer side of the rotating sleeve.

[0008] Further, a meshing groove corresponding to the positioning pin is opened inside the bottom end of the rotating sleeve, an arc-shaped limiting groove is opened inside the rotating sleeve and at the top of the meshing groove, and the limiting column is slidably connected with the arc-shaped limiting groove.

[0009] Further, a limiting component for positioning is installed inside the rotating sleeve. The limiting component includes a pull ring, a positioning post, a threaded sleeve, a limiting block, a return spring, and a pin shaft. One end of the pull ring is fixed with a limiting block, one end of the limiting block is fixed with a positioning post, the other end of the positioning post is slidably connected to the support ring, a threaded sleeve is sleeved outside the positioning post, and the threaded sleeve is slidably connected to the limiting block. The threaded sleeve is threadedly connected to the rotating sleeve. A return spring is sleeved outside the positioning post and inside the threaded sleeve. A pin shaft is fixed inside the end of the positioning post away from the limiting block, and the pin shaft is located inside the threaded sleeve.

[0010] Further, a positioning hole is provided inside the support ring at a position corresponding to the positioning post, and the positioning post is slidably connected to the support ring through the positioning hole.

[0011] Further, anti-slip threads are evenly arranged on the outer side of the pull ring.

[0012] The present invention has the following beneficial effects:

[0013] 1. Through the cooperation of the rotating sleeve, positioning pin, limiting post, engaging groove, and arc-shaped limiting groove, when the rotating sleeve rotates outside the support ring, it can drive the positioning pin to move. Furthermore, after the positioning pin enters the corresponding fixed sleeve, it can position the self-locking nut, so as to quickly and conveniently provide support and positioning for the fixed object.

[0014] 2. Through the cooperation of the pull ring, positioning hole, and positioning post, during use, the position of the positioning post can be used to limit whether the rotating sleeve can rotate, preventing misrotation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for describing the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0016] Figure 1 It is a schematic structural diagram of the whole of the present invention;

[0017] Figure 2 It is a separated view of the present invention;

[0018] Figure 3 It is a schematic structural diagram of the support ring of the present invention;

[0019] Figure 4 It is a schematic connection structure diagram of the arc-shaped limiting groove and the engaging groove of the present invention;

[0020] Figure 5 Schematic diagram of the internal structure of the rotating sleeve of the present invention;

[0021] Figure 6 Schematic diagram of the connection structure between the positioning post and the pin shaft of the present invention.

[0022] In the attached drawings, the list of components represented by each reference numeral is as follows:

[0023] 1. Support base; 2. Support ring; 3. Rotating sleeve; 4. Pulling ring; 5. Positioning pin; 6. Limiting post; 7. Positioning hole; 8. Meshing groove; 9. Arc-shaped limiting groove; 10. Card slot; 11. Positioning post; 12. Threaded sleeve; 13. Limiting block; 14. Return spring; 15. Pin shaft. Detailed implementation manners

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0025] Please refer to Figures 1-6 As shown, the present invention is a novel self-locking nut structure, including a support base 1. A support ring 2 is fixed on the top of the support base 1. The shapes of the support base 1 and the support ring 2 are both rotating bodies. Circular through grooves that communicate with each other are provided inside the support base 1 and the support ring 2, so that a workpiece or the cutting head of a shearing machine can enter the circular through groove inside the support ring 2 through the circular through groove inside the support base 1. A positioning pin 5 is slidably connected inside the support ring 2, so that the positioning pin 5 can slide inside the support ring 2, and further the length of the positioning pin 5 inside the circular through groove on the support ring 2 can be adjusted. A limiting post 6 is fixed on the top of the end of the positioning pin 5 away from the circular through groove, so that the positioning pin 5 can be driven to move by pulling the limiting post 6;

[0026] In this embodiment, when the support base 1 is assembled, it is installed on the outside of the fixed sleeve, and a connection hole is provided inside the fixed sleeve, which can allow the positioning pin 5 to enter the inside of the connection hole to position and fix the position of the self-locking nut. At the same time, the fixed sleeve can be installed on the tool shaft head through the internal set screws, and the connection and positioning are carried out through the matching use of this self-locking nut structure and the fixed sleeve.

[0027] A rotating sleeve 3 is slidably connected to the top of the support base 1 and located outside the support ring 2. The rotating sleeve 3 is in the shape of a solid of revolution, enabling the rotating sleeve 3 to rotate and slide outside the support ring 2. A clamping groove 10 is formed on the outside of the rotating sleeve 3. The number of the clamping grooves 10 is four, and the four clamping grooves 10 are evenly arranged on the outside of the rotating sleeve 3. A meshing groove 8 is formed inside the bottom end of the rotating sleeve 3 at a position corresponding to the positioning pin 5. An arc-shaped limiting groove 9 is formed at the top of the meshing groove 8 inside the rotating sleeve 3, and the limiting post 6 is slidably connected to the arc-shaped limiting groove 9. During assembly, the limiting post 6 can be assembled into the arc-shaped limiting groove 9. The arc-shaped limiting groove 9 forms an inclined angle with the center of the rotating sleeve 3. The included angle between the arc-shaped limiting groove 9 and the center of the rotating sleeve 3 is 40 degrees. Thus, the rotation of the rotating sleeve 3 can drive the rotation of the arc-shaped limiting groove 9, and the rotation of the arc-shaped limiting groove 9 drives the slidably connected limiting post 6 to drive the positioning pin 5 to move.

[0028] In this embodiment, the number of the positioning pins 5 is eight, the number of the meshing grooves 8 corresponds to the number of the positioning pins 5 and is also eight, and the number of the arc-shaped limiting grooves 9 corresponds to the number of the meshing grooves 8 and is also eight. In other embodiments, the numbers of the positioning pins 5, the meshing grooves 8, and the arc-shaped limiting grooves 9 only need to correspond, and the specific numbers can be determined according to needs.

[0029] During assembly, the positioning pins 5 are moved inside the support ring 2, and at the same time, the limiting posts 6 at the tops of the positioning pins 5 are made to fit with the support ring 2. Thus, after multiple limiting posts 6 are all in contact with the support ring 2, their lengths are the same. Then, the rotating sleeve 3 is assembled outside the support ring 2 through its sliding connection with the support ring 2. The rotating sleeve 3 slides outside the support ring 2 and the bottom of the rotating sleeve 3 is made to fit with the support base 1. Then, the rotating sleeve 3 is rotated so that the limiting posts 6 can enter the corresponding arc-shaped limiting grooves 9. Then, the rotating sleeve 3 is rotated again, causing the inclined arc-shaped limiting grooves 9 to rotate. The rotation of the arc-shaped limiting grooves 9 drives the positioning pins 5 slidably connected to the support ring 2 to move through the limiting posts 6. Therefore, the rotation of the rotating sleeve 3 can make the positioning pins 5 move inside the support ring 2, enabling the positioning pins 5 to enter or completely disengage from the circular through groove.

[0030] Please refer to Figure 5As shown, a limiting component for positioning is installed inside the rotating sleeve 3, and the position of the limiting component corresponds to the position of one of the clamping grooves 10. The limiting component includes a pull ring 4, a positioning column 11, a threaded sleeve 12, a limiting block 13, a return spring 14 and a pin shaft 15. One end of the pull ring 4 is fixed with the limiting block 13, and the pull ring 4 is located inside one of the clamping grooves 10. The shape of the limiting block 13 is rectangular. One end of the limiting block 13 is fixed with the positioning column 11. The other end of the positioning column 11 is slidably connected to the support ring 2. A positioning hole 7 is provided inside the support ring 2 at a position corresponding to the positioning column 11. The positioning column 11 is slidably connected to the support ring 2 through the positioning hole 7. The number of the positioning holes 7 is two. When the positioning column 11 enters one of the slidably connected positioning holes 7, the rotating sleeve 3 cannot rotate on the outside of the support ring 2. At the same time, one end of the positioning pin 5 is located inside the circular through groove. When the positioning column 11 enters the other slidably connected positioning hole 7, the rotating sleeve 3 cannot rotate on the outside of the support ring 2. At the same time, one end of the positioning pin 5 completely disengages from the circular through groove;

[0031] The outer side of the positioning column 11 is sleeved with the threaded sleeve 12, and the threaded sleeve 12 is slidably connected to the limiting block 13. Thus, when inside the threaded sleeve 12, the threaded sleeve 12 can be driven to rotate by the rotation of the pull ring 4. The threaded sleeve 12 is threadedly connected to the rotating sleeve 3. Thus, when in use, the limiting component can be assembled with the rotating sleeve 3 through the threaded connection between the threaded sleeve 12 and the rotating sleeve 3. A return spring 14 is sleeved on the outer side of the positioning column 11 and inside the threaded sleeve 12. A pin shaft 15 is fixed inside the positioning column 11 at the end far from the limiting block 13, and the pin shaft 15 is located inside the threaded sleeve 12. Thus, when pulling the pull ring 4, the return spring 14 can be compressed by the pin shaft 15, and the pin shaft 15 without external force can be driven to move back by the rebound after the compression of the return spring 14;

[0032] Preferably, anti-slip lines are evenly arranged on the outer side of the pull ring 4, so that the pull ring 4 can be conveniently pulled;

[0033] When it is necessary to rotate the rotating sleeve 3 outside the support ring 2, by pulling the pull ring 4, the pull ring 4 moves and drives the positioning column 11 to move outward. The movement of the positioning column 11 squeezes the return spring 14 through the pin shaft 15, and makes the positioning column 11 disengage from the other positioning hole 7 with which it is slidably connected. Then, rotate the rotating sleeve 3 again, so that the rotating sleeve 3 drives the arc-shaped limiting groove 9 to rotate. The rotation of the arc-shaped limiting groove 9 drives the positioning pin 5 to move through the slidably connected limiting column 6. The movement of the positioning pin 5 fixes the object entering the circular through groove. After the rotating sleeve 3 rotates and moves by a certain angle, the positioning column 11 passes through one of the positioning holes 7, and drives the pin shaft 15 to reset and move through the rebound after the compression of the return spring 14. The reset movement of the pin shaft 15 drives the positioning column 11 to enter the inside of one of the positioning holes 7, thereby fixing the rotating sleeve 3.

[0034] In the description of this specification, the descriptions referring to the terms "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0035] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific embodiments described. Obviously, according to the content of this specification, many modifications and changes can be made. These embodiments are selected and specifically described in this specification to better explain the principle and practical application of the present invention, so that those skilled in the art can understand and utilize the present invention well. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. A novel self-locking nut structure, characterized in that: It includes a support base (1), a support ring (2) is fixed to the top of the support base (1), circular through grooves that communicate with each other are formed inside both the support base (1) and the support ring (2), positioning pins (5) are slidably connected inside the support ring (2), a limit post (6) is fixed to the top of the end of the positioning pin (5) away from the circular through groove, and a rotating sleeve (3) is slidably connected to the top of the support base (1) and located outside the support ring (2); A clamping groove (10) is formed on the outer side of the rotating sleeve (3); A meshing groove (8) corresponding to the positioning pin (5) is formed inside the bottom end of the rotating sleeve (3), an arc-shaped limit groove (9) is formed inside the rotating sleeve (3) and located above the meshing groove (8), and the limit post (6) is slidably connected with the arc-shaped limit groove (9); A limiting component for positioning is installed inside the rotating sleeve (3), the limiting component includes a pull ring (4), a positioning post (11), a threaded sleeve (12), a limiting block (13), a return spring (14) and a pin shaft (15), a limiting block (13) is fixed to one end of the pull ring (4), a positioning post (11) is fixed to one end of the limiting block (13), the other end of the positioning post (11) is slidably connected with the support ring (2), a threaded sleeve (12) is sleeved on the outer side of the positioning post (11), and the threaded sleeve (12) is slidably connected with the limiting block (13), the threaded sleeve (12) is threadedly connected with the rotating sleeve (3), a return spring (14) is sleeved on the outer side of the positioning post (11) and inside the threaded sleeve (12), a pin shaft (15) is fixed inside the end of the positioning post (11) away from the limiting block (13), and the pin shaft (15) is located inside the threaded sleeve (12); A positioning hole (7) corresponding to the positioning post (11) is formed inside the support ring (2), and the positioning post (11) is slidably connected with the support ring (2) through the positioning hole (7).

2. The novel self-locking nut structure according to claim 1, wherein: Anti-slip patterns are evenly arranged on the outer side of the pull ring (4).

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