Lock bolt with axial offset threads

Abstract

The utility model provides a lock bolt with axial offset threads, which relates to the technical field of mechanical basic parts, and comprises a hexagonal meson head, a fixed thread column, an axial offset thread column and a locking screw, and is characterized in that the fixed thread column is arranged on one side of the hexagonal meson head; an adjusting thread sleeve is arranged between the fixed thread column and the hexagonal meson head; an adjusting sliding sleeve is arranged on the hexagonal meson head, the adjusting threaded sleeve and the fixed threaded column are matched with each other, the adjusting threaded sleeve can be adjusted in a sliding mode along the spline rod, the adjusting threaded sleeve is made to axially deviate, and therefore deviating threads are formed at the connecting position of the adjusting threaded sleeve and the fixed threaded column, and in the locking process of the bolt and the nut, the adjusting threaded sleeve can be adjusted in a sliding mode. When the bolt is used, due to the vibration of some mechanical equipment, the phenomenon of loosening and falling off of the connection between the nut and the bolt after the bolt is used for a long time can be easily caused, the connection failure can be caused, and the service life of the bolt can be prolonged. And normal operation and use of mechanical equipment are influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical basic parts, in particular to an anti-loosening bolt with axially offset thread teeth. Background Art

[0002] Bolt: A mechanical part, a cylindrical threaded fastener that is matched with a nut. A type of fastener consisting of a head and a screw (a cylinder with external threads), which must be matched with a nut to fasten two parts with through holes.

[0003] When the existing bolts are in use, due to the vibration of some mechanical equipment itself, the nut and bolt connection are very likely to loosen and fall off after long-term use, resulting in connection failure and affecting the normal operation and use of the mechanical equipment. Utility Model Content

[0004] The disclosed embodiment relates to an anti-loosening bolt with an axially offset thread. By adjusting the screw sleeve and cooperating with the fixed screw thread column, the screw sleeve can be adjusted to slide along the spline rod to cause the adjusting screw sleeve to be axially offset, thereby adjusting the connection position of the screw sleeve and the fixed screw thread column to form an offset thread. During the locking process of the bolt and the nut, the offset thread and the thread of the nut interfere with each other, thereby achieving the purpose of locking and preventing loosening, and making the bolt connection more stable and effective.

[0005] In a first aspect of the present disclosure, a locking bolt with an axially offset thread is provided, specifically comprising: a hexagonal meson head, a fixed screw column is provided on one side of the hexagonal meson head; an adjusting screw sleeve is provided between the fixed screw column and the hexagonal meson head; an adjusting sleeve is provided on the hexagonal meson head, and the adjusting sleeve is connected to the adjusting screw sleeve; and a mounting head is provided on the hexagonal meson head.

[0006] In at least some embodiments, a connecting screw sleeve is provided on one side of the hexagonal meson head, a mounting groove is provided on the other side of the hexagonal meson head, and four limiting grooves are provided on the hexagonal meson head, and the limiting grooves are located at the connection between the hexagonal meson head and the connecting screw sleeve, and the four limiting grooves are distributed in a circular array.

[0007] In at least some embodiments, a spline rod is provided at one end of the fixed screw column, and the adjusting screw sleeve is arranged on the spline rod, and a connecting screw rod is provided at the end of the spline rod.

[0008] In at least some embodiments, a spline sleeve is provided on the inner circumference of the adjusting screw sleeve, four elastic blocks are provided on the outer circumference of one end of the adjusting screw sleeve, and the four elastic blocks are distributed in a circular array, and a tension spring is provided at one end of the adjusting screw sleeve.

[0009] In at least some embodiments, when the adjusting screw sleeve, the fixed screw column and the hexagonal meson head are in a connected state, the connecting screw is fixedly connected to the connecting screw sleeve by a thread, and the adjusting screw sleeve is slidingly connected to the spline rod by a spline sleeve, and the two ends of the tension spring are respectively connected to the adjusting screw sleeve and the connecting screw sleeve.

[0010] In at least some embodiments, one end of the adjusting sleeve is provided with four limit plugs, and the four limit plugs are distributed in a circular array, and the inner circumferences of the ends of the four limit plugs are provided with connecting threaded openings, and four limit slots are provided near the end position on the other side of the limit plug, and the four limit slots are distributed in a circular array.

[0011] In at least some embodiments, the mounting head is disposed in the mounting groove, and a connecting stud is disposed at one end of the mounting head.

[0012] In at least some embodiments, when the mounting head, the adjusting sleeve and the hexagonal meson head are in a connected state, the adjusting sleeve is sleeved on the connecting screw sleeve, the limiting insert is slidably inserted into the limiting groove, and the connecting stud is fixedly connected to the connecting threaded port by means of threads.

[0013] The utility model provides an anti-loosening bolt with axially offset thread teeth, which has the following beneficial effects:

[0014] The utility model provides an adjusting screw sleeve, which can be adjusted to slide along the spline rod through cooperation with the adjusting screw sleeve and the fixed screw thread column, so that the adjusting screw sleeve is axially offset, thereby adjusting the connection position of the screw sleeve and the fixed screw thread column to form an offset screw thread. During the locking process of the bolt and the nut, the offset screw thread interferes with the screw thread of the nut, thereby achieving the purpose of locking and preventing loosening, and making the bolt connection more stable and effective.

[0015] In addition, by pushing the installation head, the adjusting sleeve can drive the adjusting screw sleeve to adjust the position and perform the locking process with the nut. Moreover, the adjusting sleeve and the fixed screw column length can be replaced according to the thickness of the bolt connection to meet the locking needs of different thicknesses. It has a simple structure and is easy to use and operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solution of the embodiment of the utility model, the drawings of the embodiment will be briefly introduced below.

[0017] The drawings described below only relate to some embodiments of the present invention, but are not intended to limit the present invention.

[0018] In the attached picture:

[0019] Figure 1 The overall axial viewing angle structure schematic diagram of the present application is shown;

[0020] Figure 2 The overall explosion state structural schematic diagram of the present application is shown;

[0021] Figure 3 The schematic diagram of the structure of the hexagonal meson head, the fixed screw thread column and the adjusting screw thread sleeve of the present application is shown;

[0022] Figure 4 This application shows Figure 3 Schematic diagram of the explosion state structure;

[0023] Figure 5 A schematic structural diagram of the hexagonal meson head, the adjusting sleeve and the mounting head in the exploded state of the present application is shown.

[0024] List of reference numerals:

[0025] 1. Hexagonal meson head; 101. Connecting screw sleeve; 102. Mounting slot; 103. Limiting slot;

[0026] 2. Fixing screw column; 201. Spline rod; 202. Connecting screw;

[0027] 3. Adjusting screw sleeve; 301. Spline sleeve; 302. Elastic block; 303. Tension spring;

[0028] 4. Adjusting sleeve; 401. Position limiting insert; 402. Connecting threaded port; 403. Position limiting slot;

[0029] 5. Mounting head; 501. Connecting stud. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution of the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings of the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the described embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] Example 1: Please refer to Figures 1 to 5 :

[0032] The utility model proposes an anti-loosening bolt with axially offset thread, comprising: a hexagonal meson head 1, a fixed thread column 2 is arranged on one side of the hexagonal meson head 1; an adjusting thread sleeve 3 is arranged between the fixed thread column 2 and the hexagonal meson head 1; an adjusting sliding sleeve 4 is arranged on the hexagonal meson head 1, and the adjusting sliding sleeve 4 is connected with the adjusting thread sleeve 3; and a mounting head 5 is arranged on the hexagonal meson head 1.

[0033] In the present disclosure, Figure 3 and Figure 4 As shown, a connecting screw sleeve 101 is provided on one side of the hexagonal meson head 1, a mounting groove 102 is provided on the other side of the hexagonal meson head 1, and four limiting through grooves 103 are provided on the hexagonal meson head 1, and the limiting through grooves 103 are located at the connection between the hexagonal meson head 1 and the connecting screw sleeve 101, and the four limiting through grooves 103 are distributed in a circular array;

[0034] A spline rod 201 is provided at one end of the fixed screw thread column 2, and the adjusting screw thread sleeve 3 is arranged on the spline rod 201, and a connecting screw rod 202 is provided at the end of the spline rod 201;

[0035] A spline sleeve 301 is provided on the inner circumference of the adjusting screw sleeve 3, and four elastic blocks 302 are provided on the outer circumference of one end of the adjusting screw sleeve 3, and the four elastic blocks 302 are distributed in a ring array, and a tension spring 303 is provided on one end of the adjusting screw sleeve 3;

[0036] When the adjusting screw sleeve 3, the fixed screw thread column 2 and the hexagonal meson head 1 are in a connected state, the connecting screw 202 is fixedly connected to the connecting screw sleeve 101 by means of a thread, and the adjusting screw sleeve 3 is slidably connected to the spline rod 201 through the spline sleeve 301, and the two ends of the tension spring 303 are respectively connected to the adjusting screw sleeve 3 and the connecting screw sleeve 101. The utility model is provided with an adjusting screw sleeve 3, and the adjusting screw sleeve 3 and the fixed screw thread column 2 cooperate with each other, so that the adjusting screw sleeve 3 can be slidably adjusted along the spline rod 201, so that the adjusting screw sleeve 3 is axially offset, thereby forming an offset screw thread at the connection position of the adjusting screw sleeve 3 and the fixed screw thread column 2. During the locking process of the bolt and the nut, the offset screw thread and the screw thread of the nut interfere with each other, thereby achieving the purpose of locking and preventing loosening.

[0037] Embodiment 2, based on embodiment 1, as Figure 5 As shown, one end of the adjusting sleeve 4 is provided with four limit inserts 401, and the four limit inserts 401 are distributed in a circular array, and the inner circumferences of the ends of the four limit inserts 401 are provided with connecting threaded openings 402, and the other side of the limit insert 401 is provided with four limit slots 403 near the end, and the four limit slots 403 are distributed in a circular array;

[0038] The mounting head 5 is disposed in the mounting groove 102, and a connecting stud 501 is disposed at one end of the mounting head 5;

[0039] When the mounting head 5, the adjusting sleeve 4 and the hexagonal meson head 1 are in a connected state, the adjusting sleeve 4 is sleeved on the connecting screw sleeve 101, and the limiting insert 401 is slidably inserted into the limiting groove 103, and the connecting stud 501 is fixedly connected to the connecting threaded port 402 by means of a thread. By pushing the mounting head 5, the adjusting sleeve 4 can drive the adjusting screw sleeve 3 to adjust its position and perform the locking process with the nut. Moreover, the length of the adjusting sleeve 4 and the fixed screw column 2 can be replaced according to the thickness of the bolt connection to meet the locking needs of different thicknesses.

[0040] The working principle of this embodiment is as follows: when in use, the screw sleeve 3 can be adjusted to slide along the spline rod 201 by cooperating with the fixed screw thread column 2, so that the adjusting screw sleeve 3 is axially offset, thereby forming an offset screw thread at the connection position of the adjusting screw sleeve 3 and the fixed screw thread column 2. During the locking process of the bolt and the nut, the offset screw thread and the screw thread of the nut interfere with each other, thereby achieving the purpose of locking and preventing loosening; by pushing the installation head 5, the adjusting sleeve 4 can drive the adjusting screw sleeve 3 to adjust its position and perform the locking process with the nut, and the adjusting sleeve 4 and the fixed screw thread column 2 can be replaced in length according to the thickness of the bolt connection, thereby meeting the locking needs of different thicknesses.

[0041] The above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A locking bolt with axially offset thread, characterized in that: include: A hexagonal meson head, wherein a fixing screw column is arranged on one side of the hexagonal meson head; an adjusting screw sleeve is arranged between the fixing screw column and the hexagonal meson head; an adjusting sleeve is arranged on the hexagonal meson head, and the adjusting sleeve is connected with the adjusting screw sleeve; and a mounting head is arranged on the hexagonal meson head.

2. The anti-loosening bolt with axially offset thread according to claim 1, characterized in that: A connecting screw sleeve is provided on one side of the hexagonal meson head, a mounting groove is provided on the other side of the hexagonal meson head, four limiting slots are provided on the hexagonal meson head, and the limiting slots are located at the connection between the hexagonal meson head and the connecting screw sleeve, and the four limiting slots are distributed in a circular array.

3. The anti-loosening bolt with axially offset thread according to claim 1, characterized in that: A spline rod is provided at one end of the fixed screw thread column, and an adjusting screw thread sleeve is arranged on the spline rod, and a connecting screw rod is provided at the end of the spline rod.

4. The anti-loosening bolt with axially offset thread according to claim 1, characterized in that: The inner circumference of the adjusting screw sleeve is provided with a spline sleeve, the outer circumference of one end of the adjusting screw sleeve is provided with four elastic blocks, and the four elastic blocks are distributed in a ring array, and one end of the adjusting screw sleeve is provided with a tension spring.

5. The anti-loosening bolt with axially offset thread according to claim 4, characterized in that: When the adjusting screw sleeve, the fixed screw thread column and the hexagonal meson head are in a connected state, the connecting screw is fixedly connected to the connecting screw sleeve by a thread, and the adjusting screw sleeve is slidingly connected to the spline rod by a spline sleeve, and the two ends of the tension spring are respectively connected to the adjusting screw sleeve and the connecting screw sleeve.

6. The anti-loosening bolt with axially offset thread according to claim 1, characterized in that: One end of the adjusting sleeve is provided with four limit plugs, and the four limit plugs are distributed in a circular array, and the inner circumferences of the ends of the four limit plugs are provided with connecting threaded openings, and the other side of the limit plug is provided with four limit slots near the end position, and the four limit slots are distributed in a circular array.

7. The anti-loosening bolt with axially offset thread according to claim 1, characterized in that: The mounting head is arranged in the mounting groove, and a connecting stud is arranged at one end of the mounting head.

8. The anti-loosening bolt with axially offset thread according to claim 7, characterized in that: When the mounting head, the adjusting sleeve and the hexagonal meson head are in a connected state, the adjusting sleeve is sleeved on the connecting screw sleeve, the limiting insert is slidably inserted into the limiting through groove, and the connecting stud is fixedly connected to the connecting threaded port by means of threads.

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