Self-locking stud inner core

Abstract

The utility model relates to the technical field of self-locking stud inner cores, and discloses a self-locking stud inner core which is characterized in that an internal thread mounting column is placed on one side of a hollow pipe body, a connecting groove is formed in one side of the internal thread mounting column, a cylindrical inner core is movably connected to the interior of the hollow pipe body, and an external thread spring is movably connected to one side of the surface of the cylindrical inner core in a sleeved mode; a fixing bolt is movably connected to the side, movably sleeved with the external thread spring, of the cylindrical inner core, the fixing bolt is movably connected to one side of the interior of the hollow pipe body, a cylindrical cavity is formed in the position, movably connected with the cylindrical inner core, of the interior of the hollow pipe body, and a round through hole is formed in the position, movably connected with the anti-theft bolt, of the surface of the hollow pipe body. A bolt head is arranged at one end of the anti-theft bolt, a connecting external thread is arranged at the position, movably sleeved with the external thread spring, of the cylindrical inner core, a circular hole is formed in one side of the surface of the cylindrical inner core, the cylindrical inner core can be quickly fed into the mounting position in the hollow pipe body through the internal thread mounting column, and mounting convenience is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of self-locking stud inner cores, and more specifically to a self-locking stud inner core. Background Art

[0002] Self-locking stud cores usually refer to a part of a threaded connection that is used to provide a locking function for the threaded connection. Self-locking stud cores are usually used in applications that require high safety and reliability, such as aerospace, automobile manufacturing, mechanical equipment and other fields. They can ensure that the connection remains stable during operation and reduce the risk of failures and accidents caused by looseness.

[0003] The existing self-locking stud cores are complicated to install and remove due to their special design, which wastes a lot of time. In addition, the self-locking stud cores are usually made of softer materials to provide better bite and fastening effects. However, this also means that the cores are relatively easy to be damaged or worn, especially in the case of repeated tightening and loosening. Utility Model Content

[0004] In order to overcome the above defects of the prior art, the utility model provides a self-locking stud inner core to solve the problems existing in the above background technology.

[0005] The utility model provides the following technical solutions: a self-locking stud inner core, an inner thread installation column is placed on one side of the hollow tube body, a connecting groove is opened at an inner position of one side of the inner thread installation column, a cylindrical inner core is movably connected inside the hollow tube body, an outer thread spring is movably sleeved on one side of the surface of the cylindrical inner core, a fixing bolt is movably connected to the cylindrical inner core at a position on one side of the movably sleeved outer thread spring, and the fixing bolt is movably connected to one side of the hollow tube body, and the inner thread installation column is used to facilitate the rapid delivery of the cylindrical inner core into the installation position inside the hollow tube body, thereby increasing the convenience of installation;

[0006] Furthermore, a cylindrical cavity is opened inside the hollow tube body at the position of the movably connected cylindrical inner core, and a circular through hole is opened on the surface of the hollow tube body at the position of the movably connected anti-theft bolt. The circular through hole is conducive to the connection of the anti-theft bolt to the movably connected cylindrical inner core inside the hollow tube body, and the position of the cylindrical inner core is limited, which is convenient for the separation of the internal thread installation column.

[0007] Furthermore, a bolt head is provided at one end of the anti-theft bolt, and the bolt head facilitates the anti-theft bolt to be rotated into the hollow tube body and the inner position of the cylindrical inner core.

[0008] Furthermore, the cylindrical inner core is provided with a connecting external wire at the position where the external wire spring is movably sleeved, a circular hole is provided on one side of the surface of the cylindrical inner core, and a placement slot is provided on the other side of the surface of the cylindrical inner core. An anti-loosening nut is movably connected inside the placement slot. The anti-loosening nut is helpful to provide better bite and tightening effect, while reducing the friction force on the cylindrical inner core, preventing damage to the cylindrical inner core and increasing the service life of the cylindrical inner core.

[0009] Furthermore, a sleeve hole is provided inside one side of the fixing bolt, and a mounting head is provided on a side of the fixing bolt away from the sleeve hole. The fixing bolt is used to fix the cylindrical inner core and prevent the cylindrical inner core from leaving the internal position of the hollow tube body.

[0010] Furthermore, the size of the sleeve hole opened by the fixing bolt is equal to the size of the connecting outer thread opened by the cylindrical inner core, and the sleeve hole opened by the fixing bolt is conducive to fixing the position of the cylindrical inner core.

[0011] Technical effects and advantages of the utility model:

[0012] 1. The utility model is provided with an inner thread installation column, which is conducive to first connecting the self-locking stud inner core with the inner thread installation column when installing the self-locking stud inner core, so that the self-locking stud inner core can be placed in the required installation position of the hollow tube body, increasing the convenience of installation and disassembly of the self-locking stud inner core and reducing the operation steps.

[0013] 2. The utility model is provided with a cylindrical inner core and a locking nut, which is conducive to fixing the connected threads through the locking nut to provide better bite and fastening effects, and reduces the wear and damage to the cylindrical inner core, thereby increasing the service life of the cylindrical inner core. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall cross-sectional structure of the utility model.

[0015] Figure 2 It is a schematic diagram of the overall structure of the utility model.

[0016] Figure 3 It is a schematic diagram of the hollow tube structure of the utility model.

[0017] Figure 4 It is a schematic cross-sectional view of the cylindrical inner core structure of the utility model.

[0018] Figure 5 This is a schematic diagram of the fixing bolt structure of the utility model.

[0019] The accompanying drawings are marked as follows: 1. hollow tube body; 101. cylindrical cavity; 102. circular through hole; 2. internal thread mounting column; 201. connecting groove; 3. cylindrical inner core; 301. connecting external thread; 302. circular hole; 303. placement slot; 4. anti-theft bolt; 401. bolt head; 5. external thread spring; 6. fixing bolt; 601. socket hole; 602. mounting head; 7. anti-loosening nut. DETAILED DESCRIPTION

[0020] The technical solution of the present invention will be clearly and completely described below in conjunction with the drawings in the present invention. In addition, the forms of the various structures recorded in the following embodiments are merely illustrative, and the self-locking stud core involved in the present invention is not limited to the various structures recorded in the following embodiments. All other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention.

[0021] Reference Figure 1 - Figure 5 As shown, the utility model provides a self-locking stud inner core, an inner thread installation column 2 is placed on one side of a hollow tube body 1, a connecting groove 201 is opened at an inner position on one side of the inner thread installation column 2, a cylindrical inner core 3 is movably connected inside the hollow tube body 1, an outer thread spring 5 is movably sleeved on one side of the surface of the cylindrical inner core 3, a fixing bolt 6 is movably connected to the cylindrical inner core 3 at a position on one side of the movably sleeved outer thread spring 5, and the fixing bolt 6 is movably connected to one side of the inner part of the hollow tube body 1, and the inner thread installation column 2 is used to facilitate the rapid delivery of the cylindrical inner core 3 into the installation position inside the hollow tube body 1, thereby increasing the convenience of installation;

[0022] Reference Figure 2 - Figure 3 As shown, a cylindrical cavity 101 is opened inside the hollow tube body 1 at the position of the movable connecting cylindrical inner core 3, and a circular through hole 102 is opened on the surface of the hollow tube body 1 at the position of the movable connecting anti-theft bolt 4. The circular through hole 102 is conducive to connecting the anti-theft bolt 4 to the movable connecting body cylindrical inner core 3 inside the hollow tube body 1, and the position of the cylindrical inner core 3 is limited, which is convenient for separating the inner thread mounting column 2.

[0023] Reference Figure 2 As shown, a bolt head 401 is provided at one end of the anti-theft bolt 4 , and the bolt head 401 facilitates the anti-theft bolt 4 to be rotated into the hollow tube body 1 and the inner position of the cylindrical inner core 3 .

[0024] Reference Figure 4As shown, the cylindrical inner core 3 is provided with a connecting external thread 301 at the position where the external thread spring 5 is movably sleeved, a circular hole 302 is provided on one side of the surface of the cylindrical inner core 3, and a placement slot 303 is provided on the other side of the surface of the cylindrical inner core 3. An anti-loosening nut 7 is movably connected inside the placement slot 303. The anti-loosening nut 7 is used to provide a better bite and tightening effect, while reducing the friction force on the cylindrical inner core 3, preventing the cylindrical inner core 3 from being damaged and increasing the service life of the cylindrical inner core 3.

[0025] Reference Figure 5 As shown, a sleeve hole 601 is provided inside one side of the fixing bolt 6, and a mounting head 602 is provided on the side of the fixing bolt 6 away from the sleeve hole 601. The fixing bolt 6 is used to fix the cylindrical core 3 and prevent the cylindrical core 3 from being separated from the internal position of the hollow tube body 1.

[0026] Reference Figure 4 - Figure 5 As shown, the size of the sleeve hole 601 opened by the fixing bolt 6 is equal to the size of the connecting outer thread 301 opened by the cylindrical inner core 3. The sleeve hole 601 opened by the fixing bolt 6 is conducive to fixing the position of the cylindrical inner core 3.

[0027] The working principle of the utility model is as follows: first, when installing and using, first lift the anti-loosening nut 7 and align it with the placement slot 303 opened in the cylindrical inner core 3 so that the anti-loosening nut 7 enters the inner position of the cylindrical inner core 3, then lift the inner thread installation column 2 so that the connection groove 201 opened in the inner thread installation column 2 is aligned with the connection outer thread 301 opened in the cylindrical inner core 3, then rotate the inner thread installation column 2 so that the connection outer thread 301 enters the connection groove 201, and then hold the inner thread installation column 2 so that the inner thread installation column 2 is The cylindrical inner core 3 connected to the side is away from the end of the connecting outer wire 301 and close to the cylindrical cavity 101 opened in the hollow tube body 1, and then the cylindrical inner core 3 is pushed in so that the circular hole 302 opened in the cylindrical inner core 3 is aligned with the circular through hole 102 opened in the hollow tube body 1, and then the anti-theft bolt 4 is picked up and the anti-theft bolt 4 is rotated into the circular through hole 102 and the circular hole 302 opened in the cylindrical inner core 3 in the cylindrical cavity 101, so that the anti-theft bolt 4 will be inserted into the circular through hole 102 in the cylindrical cavity 101. The position of the column inner core 3 is limited, and then the inner thread installation column 2 is rotated in the opposite direction so that the connection groove 201 is disengaged from the connection outer thread 301 opened in the cylindrical inner core 3 during rotation, and then the inner thread installation column 2 is pulled out of the cylindrical cavity 101 opened in the hollow tube body 1, and then the outer thread spring 5 is picked up and aligned with the position of the connection outer thread 301 opened in the cylindrical inner core 3 in the cylindrical cavity 101 and inserted, and then the fixing bolt 6 is picked up so that the sleeve hole 601 opened in the fixing bolt 6 is aligned with the sleeve hole 601 opened in the cylindrical inner core 3 in the cylindrical cavity 101. The connecting external thread 301 is positioned, and then a tool is used to sleeve it on the surface of the installation head 602. Then the fixing bolt 6 is pushed toward the connecting external thread 301 and rotated, so that the fixing bolt 6 rotates to squeeze the external thread spring 5 to connect the connecting external thread 301 with the sleeve hole 601. At this time, the thread on the surface of the fixing bolt 6 is connected with the inner wall of the cylindrical cavity 101 through rotation. At this time, the bolt head 401 is rotated to make the anti-theft bolt 4 disengage from the circular hole 302 and the circular through hole 102. Take out the anti-theft bolt 4 to complete the installation.

[0028] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A self-locking stud inner core, comprising a hollow tube body (1), characterized in that: An inner thread installation column (2) is placed on one side of the hollow tube body (1), and a connection groove (201) is provided at an internal position of one side of the inner thread installation column (2). A cylindrical inner core (3) is movably connected to the inside of the hollow tube body (1), and an outer thread spring (5) is movably sleeved on one side of the surface of the cylindrical inner core (3). A fixing bolt (6) is movably connected to the cylindrical inner core (3) at a position on the side of the movably sleeved outer thread spring (5), and the fixing bolt (6) is movably connected to one side of the inside of the hollow tube body (1). An anti-theft bolt (4) is movably connected to the surface of the hollow tube body (1) near the position of the inner movably connected cylindrical inner core (3).

2. A self-locking stud inner core according to claim 1, characterized in that: A cylindrical cavity (101) is provided inside the hollow tube body (1) at a position where the cylindrical inner core (3) is movably connected, and a circular through hole (102) is provided on the surface of the hollow tube body (1) at a position where the anti-theft bolt (4) is movably connected.

3. A self-locking stud core according to claim 1, characterized in that: A bolt head (401) is provided at one end of the anti-theft bolt (4).

4. A self-locking stud core according to claim 1, characterized in that: The cylindrical inner core (3) is provided with a connecting external thread (301) at a position where the external thread spring (5) is movably sleeved, a circular hole (302) is provided on one side of the surface of the cylindrical inner core (3), and a placement slot (303) is provided on the other side of the surface of the cylindrical inner core (3), and a locking nut (7) is movably connected inside the placement slot (303).

5. The self-locking stud core according to claim 1, characterized in that: A sleeve hole (601) is provided inside one side of the fixing bolt (6), and a mounting head (602) is provided on a side of the fixing bolt (6) away from the sleeve hole (601).

6. A self-locking stud inner core according to claim 5, characterized in that: The size of the sleeve hole (601) formed on the fixing bolt (6) is equal to the size of the connecting outer thread (301) formed on the cylindrical inner core (3).

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