Self-locking type thread sleeve based on transportation equipment and assembling method of self-locking type thread sleeve

Abstract

The invention relates to the technical field of self-locking type thread sleeves, in particular to a self-locking type thread sleeve based on transportation equipment and an assembling method thereof.The self-locking type thread sleeve comprises a thread sleeve body, the thread sleeve body comprises an anticlockwise thread, an annular connecting piece is fixedly welded to the bottom end of the anticlockwise thread, and a clockwise thread is fixedly welded to the bottom end of the annular connecting piece; a plurality of reverse blocking grooves are annularly distributed in the outer side of the anticlockwise thread; an included angle formed by the inner end surface of the reverse blocking groove is 30 degrees; the outer side of the threaded sleeve body is matched with the through hole base body through the threaded hole, and the interior of the threaded sleeve body is matched with an adaptive bolt. When the threaded sleeve is applied to transportation equipment, when a fixed part vibrates, forward rotation force and reverse rotation force exist between the threaded sleeve body and the bolt installed in the threaded sleeve body at the same time; and the force of forward rotation and the force of reverse rotation are counteracted, so that the bolt can be prevented from slipping from the interior of the threaded sleeve body, and the stability of the threaded sleeve body during use is improved.

Description

Technical Field

[0001] The invention relates to the technical field of a self-locking screw sleeve, in particular to a self-locking screw sleeve based on transportation equipment and an assembly method thereof. Background Art

[0002] The self-locking screw insert based on transportation equipment is a special threaded connection element, which is mainly used to form a standard internal thread in the threaded hole of low-strength engineering materials (such as aluminum, magnesium alloy, cast iron, fiberglass, plastic, etc.). This screw insert has the functions of high connection strength, shock resistance, impact resistance and wear resistance, and can disperse stress to protect the base thread and extend the service life of the base; Suitable for transportation equipment to ensure the stability and reliability of connection under vibration or shock environment; The self-locking screw sleeve is installed on the transportation equipment. During the process of fixing the parts of the transportation equipment, although there is an anti-slip device between the screw sleeve and the base material, if the vibration frequency of the parts of the transportation equipment is high, there is a problem that the bolts inside the self-locking screw sleeve will slip out of the self-locking screw sleeve, affecting the stability of the self-locking screw sleeve during use. Therefore, in view of the above problem, a self-locking screw sleeve based on transportation equipment and an assembly method thereof are proposed. Summary of the invention

[0003] The purpose of the present invention is to provide a self-locking screw sleeve based on transportation equipment and an assembly method thereof, so as to solve the problem that when the self-locking screw sleeve is installed on the transportation equipment and the parts of the transportation equipment are fixed, although there is an anti-slip arrangement between the screw sleeve and the base material, if the vibration frequency of the parts of the transportation equipment is high, there is a problem that the bolts inside the self-locking screw sleeve may slip out of the self-locking screw sleeve, affecting the stability of the self-locking screw sleeve during use.

[0004] To achieve the above object, the present invention provides the following technical solutions: A self-locking screw sleeve based on transportation equipment and an assembly method thereof, comprising a screw sleeve body, the screw sleeve body comprising a counterclockwise thread, an annular connecting piece welded and fixed at the bottom end of the counterclockwise thread, a clockwise thread welded and fixed at the bottom end of the annular connecting piece, a plurality of anti-reverse grooves distributed in an annular shape on the outside of the counterclockwise thread; the angle formed by the inner end face of the anti-reverse groove is 30°; the outside of the screw sleeve body is adapted to a through hole base through a threaded hole, and the inside of the screw sleeve body is adapted to an adaption bolt.

[0005] As a further optimized content of the present invention, wherein: the threaded hole comprises a center hole, a counterclockwise thread groove is opened at the upper end of the center hole, and a clockwise thread groove is opened at the lower end of the center hole.

[0006] As a further optimization of the present invention, the adapter bolt includes a hollow screw, an adapter thread groove is provided on the outer side of the lower end of the hollow screw, a center screw and a light column are installed on the inner side of the hollow screw, a reverse blocking plate is fixedly connected to the lower end of the light column, and a special-shaped thread groove is provided on the outer side of the reverse blocking plate.

[0007] As a further optimization of the present invention, the counterclockwise thread is connected to the center hole via a counterclockwise thread groove, the clockwise thread is connected to the center hole via a clockwise thread groove, and the vertical projections of the counterclockwise thread groove and the clockwise thread groove are equal in size.

[0008] As a further optimization of the present invention, the cross-section of the upper end of the hollow screw is a hexagonal shape with a circular hole inside, the cross-section of the lower end of the hollow screw is annular, and the central screw is hidden inside the upper end of the hollow screw.

[0009] As a further optimization of the present invention, the adapting thread groove is connected to the inside of the counterclockwise thread, the special-shaped thread groove is connected to the inside of the clockwise thread, and the hollow screw and the central screw have the same axis.

[0010] As a further optimization of the present invention, the vertical projections of the light column and the anti-reversal plate are both circular, and the diameter of the vertical projection of the light column is 0.1 cm larger than the diameter of the vertical projection of the anti-reversal plate.

[0011] As a further optimization of the present invention, the horizontal distance from the upper tooth bottom to the tooth top of the special-shaped thread groove is twice the horizontal distance from the lower tooth bottom to the tooth top of the special-shaped thread groove.

[0012] As a further optimization of the present invention, the threaded hole is a through hole, and the pitch of the counterclockwise thread is equal to the pitch of the clockwise thread.

[0013] As a further optimized content of the present invention, the following steps are included: Step I: The screw sleeve body is installed inside the through hole matrix: the screw sleeve body is directly rotated into the threaded hole by a tool, and after the installation is completed, the counterclockwise thread is tightly attached to the counterclockwise thread groove, and the clockwise thread is tightly attached to the clockwise thread groove, and after the installation is completed, the screw sleeve body is completely hidden inside the through hole matrix; Step II: Connect the upper end of the adapter bolt with the counterclockwise thread: Use a tool to rotate the upper end of the hollow screw rod so that the adapter thread groove rotates inside the counterclockwise thread and enters, thereby connecting the hollow screw rod with the upper end of the screw sleeve body to achieve the positioning of the hollow screw rod; Step III: Connect the lower end of the adapter bolt to the clockwise thread: When the lower end of the anti-reverse plate contacts the upper end of the clockwise thread, use a tool to control the light column to rotate in the opposite direction of the hollow screw. During this process, the hollow screw continues to rotate. When the hollow screw completely enters the instantaneous clockwise thread, the anti-reverse plate completely enters the instantaneous clockwise thread, and the special-shaped thread groove on the outside of the anti-reverse plate stretches the bottom of the clockwise thread to make the outside of the clockwise thread fit tightly against the inside of the clockwise thread groove, completing the installation.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. In the present invention, by providing the screw sleeve body, when it is applied to the transport equipment, when the fixed parts vibrate, the screw sleeve body and the bolts installed inside can have both positive and reverse rotation forces. By offsetting the positive and reverse rotation forces, the bolts can be prevented from slipping out of the screw sleeve body, thereby improving the stability of the screw sleeve body when in use; 2. In the present invention, the matching of the adapter bolt and the inside of the screw sleeve body can stably install the clockwise thread and the counterclockwise thread in the threaded hole, and the counterclockwise thread can be closely attached to the counterclockwise thread groove, and the clockwise thread can be closely attached to the clockwise thread groove, thereby improving the stability of the screw sleeve body installed in the base body. At the same time, the anti-reverse groove can further prevent the screw sleeve body from slipping off the base body. 3. In the present invention, the counterclockwise thread and the clockwise thread can be stably connected by the annular connecting piece, and the bottom end of the counterclockwise thread can be propped open by the special-shaped thread groove, thereby further improving the stability of the cooperation between the clockwise thread and the clockwise thread groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the threaded hole structure of the present invention; Figure 3 It is a schematic diagram of the structure of the screw sleeve body of the present invention; Figure 4 It is a cross-sectional view of the screw sleeve body of the present invention; Figure 5 For the present invention Figure 4 Schematic diagram of the structure at A in the middle; Figure 6 This is a schematic diagram of the adapter bolt structure of the present invention.

[0016] In the figure: 1. through-hole substrate; 2. Threaded hole; 21. Center hole; 22. Counterclockwise thread groove; 23. Clockwise thread groove; 3. Screw sleeve body; 31. Counterclockwise thread; 32. Anti-reverse groove; 33. Ring connector; 34. Clockwise thread; 4. Adapter bolt; 41. Hollow screw; 42. Adapter thread groove; 43. Center screw; 44. Light column; 45. Anti-reverse plate; 46. Special-shaped thread groove. DETAILED DESCRIPTION

[0017] See also Figure 1-6 , the present invention provides a technical solution: A self-locking screw sleeve based on transportation equipment and an assembly method thereof include a screw sleeve body 3, the screw sleeve body 3 includes a counterclockwise thread 31, a ring-shaped connecting piece 33 is welded and fixed at the bottom end of the counterclockwise thread 31, a clockwise thread 34 is welded and fixed at the bottom end of the ring-shaped connecting piece 33, and a plurality of anti-reverse grooves 32 are distributed in a ring shape on the outside of the counterclockwise thread 31; the angle formed by the inner end face of the anti-reverse groove 32 is 30°; the outer side of the screw sleeve body 3 is adapted to the through-hole base 1 through the threaded hole 2, and the inside of the screw sleeve body 3 is adapted to the adaption bolt 4.

[0018] As a technical solution for further implementation of this scheme, the threaded hole 2 includes a center hole 21, a counterclockwise thread groove 22 is opened at the upper end of the center hole 21, and a clockwise thread groove 23 is opened at the lower end of the center hole 21. Through the above arrangement, the outer side of the screw sleeve body 3 can be adapted to the threaded hole 2; As a technical solution for further implementation of this solution, the adapter bolt 4 includes a hollow screw 41, an adapter thread groove 42 is provided on the outer side of the lower end of the hollow screw 41, a center screw 43 and a light column 44 are installed on the inner side of the hollow screw 41, a reverse blocking plate 45 is fixedly connected to the lower end of the light column 44, and a special-shaped thread groove 46 is provided on the outer side of the reverse blocking plate 45. Through the above arrangement, the inside of the screw sleeve body 3 and the adapter bolt 4 can be adapted to each other; As a technical solution further implemented in this scheme, the counterclockwise thread 31 is connected to the center hole 21 through the counterclockwise thread groove 22, and the clockwise thread 34 is connected to the center hole 21 through the clockwise thread groove 23. The vertical projections of the counterclockwise thread groove 22 and the clockwise thread groove 23 are equal in size. Through the above arrangement, the stability of the connection between the screw sleeve body 3 and the threaded hole 2 is further improved; As a technical solution for further implementing the present invention, the cross section of the upper end of the hollow screw 41 is a hexagonal shape with a circular hole inside, and the cross section of the lower end of the hollow screw 41 is annular. The central screw 43 is hidden inside the upper end of the hollow screw 41. Through the above arrangement, the central screw 43 can be stably limited. As a technical solution further implemented in this scheme, the adapting thread groove 42 is connected to the inside of the counterclockwise thread 31, the special-shaped thread groove 46 is connected to the inside of the clockwise thread 34, and the hollow screw 41 and the center screw 43 have the same axis. Through the above arrangement, the stability during the tightening process can be ensured; As a technical solution for further implementation of this solution, the vertical projections of the light column 44 and the reverse blocking plate 45 are both circular, and the vertical projection diameter of the light column 44 is 0.1 cm larger than the vertical projection diameter of the reverse blocking plate 45. Through the above arrangement, the problem of contact between the reverse blocking plate 45 and the counterclockwise thread 31 during the connection between the thread groove 42 and the counterclockwise thread 31 can be solved; As a further technical solution of the present invention, the horizontal distance between the upper tooth bottom and the tooth top of the special-shaped thread groove 46 is twice the horizontal distance between the lower tooth bottom and the tooth top of the special-shaped thread groove 46, so that the bottom of the clockwise thread 34 can be stretched open, thereby making the clockwise thread 34 close to the clockwise thread groove 23; As a technical solution for further implementing this scheme, the threaded hole 2 is a through hole, and the pitch of the counterclockwise thread 31 is equal to the pitch of the clockwise thread 34. Through the above arrangement, the stability of the screw sleeve body 3 installed inside the through hole base 1 can be further improved.

[0019] As a technical solution for further implementation of this scheme, the following steps are included: Step I: The screw sleeve body 3 is installed inside the through-hole base 1: The screw sleeve body 3 is directly rotated into the threaded hole 2 by a tool. After the installation is completed, the counterclockwise thread 31 is tightly attached to the counterclockwise thread groove 22, and the clockwise thread 34 is tightly attached to the clockwise thread groove 23. After the installation is completed, the screw sleeve body 3 is completely hidden inside the through-hole base 1; Step II: The upper end of the adapter bolt 4 is connected to the counterclockwise thread 31: Use a tool to rotate the upper end of the hollow screw 41, so that the adapter thread groove 42 rotates into the inside of the counterclockwise thread 31, and then the hollow screw 41 is connected to the upper end of the screw sleeve body 3 to achieve the positioning of the hollow screw 41; Step III: Connect the lower end of the adapter bolt 4 to the clockwise thread 34: When the lower end of the anti-reverse plate 45 contacts the upper end of the clockwise thread 34, use a tool to control the light column 44 to rotate, and the rotation direction is opposite to the rotation direction of the hollow screw 41. During this process, the hollow screw 41 continues to rotate. When the hollow screw 41 completely enters the instantaneous clockwise thread 31, the anti-reverse plate 45 completely enters the instantaneous clockwise thread 34, and the special-shaped thread groove 46 opened on the outside of the anti-reverse plate 45 stretches the bottom of the clockwise thread 34 to make the outside of the clockwise thread 34 fit tightly against the inside of the clockwise thread groove 23, and the installation is completed.

[0020] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. The above is only a preferred implementation of the present invention. It should be pointed out that due to the limitations of textual expression and the objective existence of infinite specific structures, ordinary technicians in this technical field can make several improvements, modifications or changes without departing from the principles of the present invention, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the inventive concept and technical solution to other occasions without improvement, should be regarded as the protection scope of the present invention.

Claims

1. A self-locking screw sleeve based on transportation equipment, comprising a screw sleeve body (3), characterized in that: The screw sleeve body (3) comprises a counterclockwise thread (31), an annular connecting piece (33) is welded and fixed to the bottom end of the counterclockwise thread (31), a clockwise thread (34) is welded and fixed to the bottom end of the annular connecting piece (33), and a plurality of anti-reverse grooves (32) are distributed in an annular shape on the outer side of the counterclockwise thread (31); The included angle formed by the inner end surface of the reverse blocking groove (32) is 30°; The outer side of the screw sleeve body (3) is matched with the through hole base (1) via the threaded hole (2), and the inner side of the screw sleeve body (3) is matched with the matching bolt (4).

2. The self-locking screw sleeve based on transportation equipment according to claim 1 is characterized in that: The threaded hole (2) comprises a central hole (21), a counterclockwise thread groove (22) is formed at the upper end of the central hole (21), and a clockwise thread groove (23) is formed at the lower end of the central hole (21).

3. The self-locking screw sleeve based on transportation equipment according to claim 1 is characterized in that: The adapting bolt (4) comprises a hollow screw (41), an adapting thread groove (42) is provided on the outer side of the lower end of the hollow screw (41), a central screw (43) and a light column (44) are installed on the inner side of the hollow screw (41), a reverse blocking plate (45) is fixedly connected to the lower end of the light column (44), and a special-shaped thread groove (46) is provided on the outer side of the reverse blocking plate (45).

4. The self-locking screw sleeve based on transportation equipment according to claim 1 is characterized in that: The counterclockwise thread (31) is connected to the center hole (21) via a counterclockwise thread groove (22), and the clockwise thread (34) is connected to the center hole (21) via a clockwise thread groove (23), and the vertical projections of the counterclockwise thread groove (22) and the clockwise thread groove (23) are equal in size.

5. The self-locking screw sleeve based on transportation equipment according to claim 3 is characterized in that: The cross section of the upper end of the hollow screw (41) is hexagonal with a circular hole inside, the cross section of the lower end of the hollow screw (41) is annular, and the central screw (43) is hidden inside the upper end of the hollow screw (41).

6. The self-locking screw sleeve based on transportation equipment according to claim 3 is characterized in that: The adapting thread groove (42) is connected to the inside of the counterclockwise thread (31), the special-shaped thread groove (46) is connected to the inside of the clockwise thread (34), and the hollow screw (41) and the central screw (43) are coaxial.

7. The self-locking screw sleeve based on transportation equipment according to claim 3 is characterized in that: The vertical projections of the light column (44) and the anti-reversal plate (45) are both circular, and the vertical projection diameter of the light column (44) is 0.1 cm larger than the vertical projection diameter of the anti-reversal plate (45).

8. The self-locking screw sleeve based on transportation equipment according to claim 3, characterized in that: The horizontal distance between the tooth bottom and the tooth top at the upper end of the special-shaped thread groove (46) is twice the horizontal distance between the tooth bottom and the tooth top at the lower end of the special-shaped thread groove (46).

9. The self-locking screw sleeve based on transportation equipment according to claim 1, characterized in that: The threaded hole (2) is a through hole, and the pitch of the counterclockwise thread (31) is equal to the pitch of the clockwise thread (34).

10. The method for assembling the self-locking screw sleeve based on transportation equipment according to any one of claims 1 to 9, characterized in that: The method comprises the following steps: Step I: the screw sleeve body (3) is installed inside the through hole base (1): the screw sleeve body (3) is directly rotated into the threaded hole (2) by means of a tool. After the installation is completed, the counterclockwise thread (31) is tightly attached to the counterclockwise thread groove (22), and the clockwise thread (34) is tightly attached to the clockwise thread groove (23). After the installation is completed, the screw sleeve body (3) is completely hidden inside the through hole base (1); Step II: The upper end of the adapter bolt (4) is connected to the counterclockwise thread (31): Use a tool to rotate the upper end of the hollow screw (41) so that the adapter thread groove (42) rotates into the inside of the counterclockwise thread (31), thereby connecting the hollow screw (41) to the upper end of the screw sleeve body (3) to achieve the positioning of the hollow screw (41); Step III: Connect the lower end of the adapter bolt (4) to the clockwise thread (34): When the lower end of the anti-reverse plate (45) contacts the upper end of the clockwise thread (34), use a tool to control the light column (44) to rotate in a direction opposite to the direction of rotation of the hollow screw rod (41). During this process, the hollow screw rod (41) continues to rotate. When the hollow screw rod (41) completely enters the interior of the instantaneous clockwise thread (31), the anti-reverse plate (45) completely enters the interior of the instantaneous clockwise thread (34), and the special-shaped thread groove (46) opened on the outer side of the anti-reverse plate (45) opens the bottom of the clockwise thread (34), so that the outer side of the clockwise thread (34) is tightly attached to the inner side of the clockwise thread groove (23), and the installation is completed.

Images