High-stability transmission connecting piece

Abstract

The utility model belongs to the technical field of transmission connecting pieces, and particularly relates to a high-stability transmission connecting piece which comprises a universal joint body, a spherical block is arranged on the inner wall of the universal joint body in an attached mode, and a pressing block is arranged on the right side of the spherical block in an attached mode. The surface of the pressing block is fixedly connected with the inner wall of the universal joint body. According to the high-stability transmission connecting piece, through cooperation of a hollow circular plate, a sliding groove, a positioning column, a cylinder, a rotating support, a first cylinder, a volute spiral spring and a second cylinder, after the rotating support stops rotating, the positioning column can be automatically inserted into a positioning groove, and through cooperation of the positioning column, a through hole and the positioning groove, a threaded barrel cannot rotate; therefore, the threaded cylinder can be automatically locked after rotating to a specified position, and the threaded cylinder does not displace in the use process of the transmission connecting piece, so that parts fixed on the transmission connecting piece are not easy to loosen.

Description

Technical Field

[0001] The utility model belongs to the technical field of transmission connecting parts, and in particular relates to a transmission connecting part with high stability. Background Art

[0002] Transmission connectors are devices used to transfer power from one component to another and play a key role in various mechanical systems. Currently, most transmission connectors on the market use a threaded column and a nut to fix parts on the transmission connector. For example, a universal transmission connector disclosed in Chinese Patent Publication No. CN207005117U. However, the nut used to fix the parts on the transmission connector is prone to displacement after being subjected to vibration, which in turn causes the fixed parts on the transmission connector to loosen easily. At the same time, since the diameter of the threaded column is fixed, the transmission connector can only fix parts with a specified mounting hole diameter, resulting in low adaptability of the transmission connector. Utility Model Content

[0003] The purpose of the utility model is to provide a highly stable transmission connecting piece, which solves the problem that the nuts used to fix parts on the transmission connecting piece are easily displaced after being subjected to vibration, thereby causing the parts fixed on the transmission connecting piece to be easily loosened. At the same time, it solves the problem that the diameter of the threaded column is fixed, thereby causing the transmission connecting piece to only be able to fix parts with a specified mounting hole diameter, thereby causing the adaptability of the transmission connecting piece to be low.

[0004] The technical solutions adopted by this utility model are as follows:

[0005] A high-stability transmission connection component comprises a universal joint body, wherein the inner wall of the universal joint body is fitted with a spherical block, the right side of the spherical block is fitted with a pressing block, the surface of the pressing block is fixedly connected to the inner wall of the universal joint body, the inner wall of the universal joint body is fixedly connected with a locking connection block, the left side of the spherical block is fixedly connected to a threaded column, the surface of the threaded column is fixedly connected to a stopper, the surface of the threaded column is threadedly connected to a threaded barrel, the surface of the threaded barrel is fixedly connected to a hollow circular plate, a sliding groove is provided inside the hollow circular plate, a positioning groove is provided on the surface of the threaded column, and the thread Through holes are provided on the upper and lower sides of the cylinder, and positioning posts are fitted on the inner walls of the through holes, the inner walls of the positioning grooves and the inner walls of the slide grooves. An elastic rubber pad is bonded to the inner wall of the positioning grooves, and the surface of the elastic rubber pad fits with the surface of the positioning post. A cylinder is fixedly connected to the inner wall of the positioning post, and a rotating bracket is fitted on the surface of the threaded cylinder. The inner wall of the rotating bracket fits with the surface of the cylinder, and a first cylinder is fitted on the left and right sides of the rotating bracket, and a spiral spring is fixedly connected to the surface of the first cylinder, and a second cylinder is fixedly connected to the surface of the spiral spring and the left and right sides of the rotating bracket.

[0006] The present invention is further configured such that the elastic force of the elastic rubber pad is greater than the sum of the gravity of the positioning column and the cylinder.

[0007] The present invention is further configured as follows: the rotating bracket includes a hollow rotating block, a circular ring, a solid circular plate and an arc-shaped groove; the inner wall of the hollow rotating block fits with the surface of the threaded cylinder; the side of the hollow rotating block fits with the side of the first cylinder; the side of the second cylinder is fixedly connected to the side of the hollow rotating block; the side of the circular ring and the side of the solid circular plate are both fixedly connected to the side of the hollow rotating block; the left and right ends of the cylinder are both fitted with the side of the hollow rotating block; the arc-shaped groove is opened on the surface of the solid circular plate; the inner wall of the arc-shaped groove fits with the surface of the cylinder.

[0008] The present invention is further configured such that the axis of the circular ring coincides with the axis of the solid circular plate, and the distance between the inner wall of the circular ring and the surface of the solid circular plate is equal to the diameter of the cylinder.

[0009] The present invention is further configured such that a first slip ring is fitted on the surface of the threaded column and the right side of the threaded barrel, a first trapezoidal block is fixedly connected to the right side of the first slip ring, a second slip ring is fitted on the surface of the threaded column and the left side of the stop block, a second trapezoidal block is fixedly connected to the left side of the second slip ring, the surface of the first trapezoidal block and the surface of the second trapezoidal block are both fitted with the inner wall of the positioning groove, and the surface of the first trapezoidal block and the surface of the second trapezoidal block are both fitted with the surface of the elastic rubber pad.

[0010] The present invention is further configured such that the shape of the first trapezoidal block is the same as that of the second trapezoidal block, and the right side of the first trapezoidal block and the left side of the second trapezoidal block are both inclined surfaces.

[0011] The technical effects achieved by this utility model are:

[0012] The utility model provides a high-stability transmission connecting piece, which cooperates with a hollow circular plate, a sliding groove, a positioning column, a cylinder, a rotating bracket, a first cylinder, a spiral spring and a second cylinder. After the rotating bracket stops rotating, the positioning column can automatically be inserted into the positioning groove. The positioning column, the through hole and the positioning groove cooperate to prevent the threaded barrel from rotating, and the threaded barrel can be automatically locked after rotating to a specified position. The threaded barrel will not be displaced during use of the transmission connecting piece, so that the parts fixed to the transmission connecting piece are not easy to loosen.

[0013] A high-stability transmission connecting piece of the utility model uses the inclined surfaces on the first trapezoidal block and the second trapezoidal block to enable the first trapezoidal block and the second trapezoidal block to support and fix parts with any mounting hole diameter, thereby enabling the transmission connecting piece to adapt to parts with any mounting hole diameter, thereby improving the adaptability of the transmission connecting piece. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional schematic diagram of the structure of the utility model;

[0015] Figure 2 It is a top view of the structure of the utility model;

[0016] Figure 3 yes Figure 2 Cross-sectional view at AA in the middle;

[0017] Figure 4 yes Figure 3 Enlarged view of point B in the middle;

[0018] Figure 5 It is a left side view of the threaded column in the utility model;

[0019] Figure 6 It is a top view of the threaded barrel in the utility model;

[0020] Figure 7 It is a left side view of the hollow circular plate, positioning column and cylinder of the utility model;

[0021] Figure 8 This is a front view of the cylinder and the rotating bracket in the utility model;

[0022] Figure 9 yes Figure 8 Cross-sectional view at CC;

[0023] Figure 10 yes Figure 9 Enlarged view of point D in the middle;

[0024] Figure 11 It is a three-dimensional schematic diagram of the first slip ring and the first trapezoidal block in the utility model;

[0025] Figure 12 It is a right side view of the first slip ring and the first trapezoidal block in the utility model.

[0026] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0027] 1. Universal joint body; 2. Spherical block; 3. Pressing block; 4. Locking connection block; 5. Threaded column; 6. Stop block; 7. Threaded barrel; 8. Hollow circular plate; 9. Slide groove; 10. Positioning groove; 11. Through hole; 12. Positioning column; 13. Elastic rubber pad; 14. Cylinder; 15. Rotating bracket; 151. Hollow rotating block; 152. Ring; 153. Solid circular plate; 154. Arc groove; 16. First cylinder; 17. Volute spring; 18. Second cylinder; 19. First sliding ring; 20. First trapezoidal block; 21. Second sliding ring; 22. Second trapezoidal block. DETAILED DESCRIPTION

[0028] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0029] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0030] like Figures 1 to 10 As shown, a high-stability transmission connection component includes a universal joint body 1, a spherical block 2 is fitted on the inner wall of the universal joint body 1, a pressing block 3 is fitted on the right side of the spherical block 2, the surface of the pressing block 3 is fixedly connected to the inner wall of the universal joint body 1, and a locking connection block 4 is fixedly connected to the inner wall of the universal joint body 1, a threaded column 5 is fixedly connected to the left side of the spherical block 2, a stopper 6 is fixedly connected to the surface of the threaded column 5, a threaded cylinder 7 is threadedly connected to the surface of the threaded cylinder 7, and a hollow circular plate 8 is fixedly connected to the surface of the threaded cylinder 7, a sliding groove 9 is provided inside the hollow circular plate 8, a positioning groove 10 is provided on the surface of the threaded column 5, and a through hole 11 is provided on the upper and lower sides of the threaded cylinder 7. The inner wall of the through hole 11, the positioning groove 10 and the positioning groove 11 are fixedly provided on the surface of the threaded column 5. The inner wall of the positioning groove 10 and the inner wall of the slide groove 9 are both fitted with a positioning column 12, and the inner wall of the positioning groove 10 is bonded with an elastic rubber pad 13. The surface of the elastic rubber pad 13 fits with the surface of the positioning column 12, and the elastic force of the elastic rubber pad 13 is greater than the sum of the gravity of the positioning column 12 and the cylinder 14. The inner wall of the positioning column 12 is fixedly connected with the cylinder 14, and the surface of the threaded cylinder 7 is fitted with a rotating bracket 15. The inner wall of the rotating bracket 15 fits with the surface of the cylinder 14, and the left and right sides of the rotating bracket 15 are fitted with a first cylinder 16. The surface of the first cylinder 16 is fixedly connected with a spiral spring 17, and the surface of the spiral spring 17 and the left and right sides of the rotating bracket 15 are fixedly connected with a second cylinder 18.

[0031] Among them, the rotating bracket 15 includes a hollow rotating block 151, a ring 152, a solid circular plate 153 and an arc-shaped groove 154. The inner wall of the hollow rotating block 151 is fitted with the surface of the threaded cylinder 7, the side of the hollow rotating block 151 is fitted with the side of the first cylinder 16, and the side of the second cylinder 18 is fixedly connected to the side of the hollow rotating block 151. The side of the ring 152 and the side of the solid circular plate 153 are both fixedly connected to the side of the hollow rotating block 151. The left and right ends of the cylinder 14 are both fitted with the side of the hollow rotating block 151. The arc-shaped groove 154 is opened on the surface of the solid circular plate 153. The inner wall of the arc-shaped groove 154 is fitted with the surface of the cylinder 14. The axis of the ring 152 coincides with the axis of the solid circular plate 153. The distance between the inner wall of the ring 152 and the surface of the solid circular plate 153 is equal to the diameter of the cylinder 14.

[0032] It should be noted that the movement trajectory of the positioning column 12 is restricted by the slide groove 9 and the through hole 11. When the positioning column 12 is inserted into the positioning groove 10, the elasticity of the elastic rubber pad 13 makes the cylinder 14 on the positioning column 12 closely contact with the arc groove 154 on the rotating bracket 15. Through the arc groove 154, when the threaded column 5 rotates, the centrifugal force exerted on the cylinder 14 will not push the solid circular plate 153 to move, and the positioning column 12 will not separate from the positioning groove 10. At the same time, because the elastic rubber pad 13 can be deformed after being compressed, the hollow rotating block 151 on the rotating bracket 15 can directly contact the arc groove 154 when it rotates. Separation. When the cylinder 14 is separated from the arc groove 154, continue to rotate the hollow rotating block 151, and through the cooperation of the ring 152 and the solid circular plate 153, the positioning column 12 can be moved out of the positioning groove 10. When the positioning column 12 is separated from the positioning groove 10, the threaded barrel 7 can be rotated by continuing to rotate the hollow rotating block 151. When the hollow rotating block 151 stops, the elastic force of the spiral spring 17 causes the hollow rotating block 151 to rotate a certain angle, and through the cooperation of the ring 152 and the solid circular plate 153, the positioning column 12 is inserted into the positioning groove 10. At this time, through the cooperation of the positioning column 12, the through hole 11 and the positioning groove 10, the threaded barrel 7 cannot rotate.

[0033] like Figures 1 to 12 As shown, the surface of the threaded column 5 and the right side of the threaded barrel 7 are both fitted with a first slip ring 19, the right side of the first slip ring 19 is fixedly connected to the first trapezoidal block 20, the surface of the threaded column 5 and the left side of the stop block 6 are both fitted with a second slip ring 21, the left side of the second slip ring 21 is fixedly connected to the second trapezoidal block 22, the surface of the first trapezoidal block 20 and the surface of the second trapezoidal block 22 are both fitted with the inner wall of the positioning groove 10, and the surface of the first trapezoidal block 20 and the surface of the second trapezoidal block 22 are both fitted with the surface of the elastic rubber pad 13.

[0034] The shape of the first trapezoidal block 20 is the same as that of the second trapezoidal block 22 , and the right side of the first trapezoidal block 20 and the left side of the second trapezoidal block 22 are both inclined surfaces.

[0035] It should be noted that multiple first trapezoidal blocks 20 are connected together through the first slip ring 19, and multiple second trapezoidal blocks 22 are connected together through the second slip ring 21. The first trapezoidal blocks 20 and the second trapezoidal blocks 22 can only move left and right on the threaded column 5 through the positioning groove 10. The first trapezoidal blocks 20 and the second trapezoidal blocks 22 can support and fix parts of any mounting aperture through the inclined surfaces on the first trapezoidal blocks 20 and the second trapezoidal blocks 22, so that the transmission connection can adapt to parts of any mounting aperture, thereby improving the adaptability of the transmission connection.

[0036] The operating principle of the present invention is as follows: first, the cylinder 14 and the arc groove 154 are staggered by rotating the hollow rotating block 151, and then, the hollow rotating block 151 is continued to be rotated, so that the positioning column 12 is moved out of the positioning groove 10 under the cooperation of the solid circular plate 153, the ring 152 and the cylinder 14, and then, the threaded barrel 7 can be rotated by continuing to rotate the hollow rotating block 151, and the threaded barrel 7 can be unscrewed from the threaded column 5.

[0037] Then, the first slip ring 19 is removed from the threaded column 5, and the parts to be fixed to the transmission connection are put on the threaded column 5. Then, the first slip ring 19 is put on the threaded column 5 and screwed on the threaded column 5 through the threaded barrel 7.

[0038] When screwing the threaded barrel 7 onto the threaded column 5, first use a wrench to clamp the hollow rotating block 151, then screw the threaded barrel 7 onto the threaded column 5. When the positioning column 12 contacts the left side of the threaded column 5, by continuing to rotate the hollow rotating block 151, the positioning column 12 is separated from the threaded column 5 with the cooperation of the solid circular plate 153, the ring 152 and the cylinder 14. Then, by continuing to rotate the hollow rotating block 151, the threaded barrel 7 can be moved to the right on the threaded column 5.

[0039] When the threaded barrel 7 is screwed to the appropriate position, the first trapezoidal block 20 and the second trapezoidal block 22 squeeze the mounting hole on the part, and the part is fixed to the transmission connection through the cooperation of the first trapezoidal block 20 and the second trapezoidal block 22. Then, the wrench is separated from the hollow rotating block 151. At this time, the elastic force of the spiral spring 17 causes the hollow rotating block 151 to rotate a certain angle, and the positioning column 12 is inserted into the positioning groove 10 through the cooperation of the ring 152 and the solid circular plate 153. Then, the threaded barrel 7 cannot rotate through the cooperation of the positioning column 12, the through hole 11 and the positioning groove 10.

[0040] When it is necessary to disassemble the parts fixed on the transmission connection, first rotate the hollow rotating block 151 to stagger the cylinder 14 and the arc groove 154, then continue to rotate the hollow rotating block 151 to move the positioning column 12 out of the positioning groove 10 with the cooperation of the solid circular plate 153, the ring 152 and the cylinder 14, and then continue to rotate the hollow rotating block 151 to rotate the threaded barrel 7 and unscrew the threaded barrel 7 from the threaded column 5. When the threaded barrel 7 is unscrewed from the threaded column 5, the parts can be removed from the transmission connection.

[0041] The above description is merely a preferred embodiment of the present invention. It should be noted that those skilled in the art may make various improvements and modifications without departing from the principles of the present invention, and such improvements and modifications should be considered within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described or explained in this invention shall, unless otherwise specified or limited, be implemented in accordance with conventional means in the art.

Claims

1. A high-stability transmission connector, characterized by: The invention comprises a universal joint body (1), wherein a spherical block (2) is fitted on the inner wall of the universal joint body (1), a pressing block (3) is fitted on the right side of the spherical block (2), the surface of the pressing block (3) is fixedly connected to the inner wall of the universal joint body (1), a locking connection block (4) is fixedly connected to the inner wall of the universal joint body (1), a threaded column (5) is fixedly connected to the left side of the spherical block (2), a stopper (6) is fixedly connected to the surface of the threaded column (5), a threaded barrel (7) is threadedly connected to the surface of the threaded barrel (7), a hollow circular plate (8) is fixedly connected to the surface of the threaded barrel (7), a sliding groove (9) is provided inside the hollow circular plate (8), a positioning groove (10) is provided on the surface of the threaded column (5), and through holes (11) are provided on both the upper and lower sides of the threaded barrel (7). The inner wall of the through hole (11), the inner wall of the positioning groove (10) and the inner wall of the slide groove (9) are all fitted with a positioning column (12), the inner wall of the positioning groove (10) is bonded with an elastic rubber pad (13), the surface of the elastic rubber pad (13) is fitted with the surface of the positioning column (12), the inner wall of the positioning column (12) is fixedly connected with a cylinder (14), the surface of the threaded cylinder (7) is fitted with a rotating bracket (15), the inner wall of the rotating bracket (15) is fitted with the surface of the cylinder (14), the left and right sides of the rotating bracket (15) are both fitted with a first cylinder (16), the surface of the first cylinder (16) is fixedly connected with a spiral spring (17), the surface of the spiral spring (17) and the left and right sides of the rotating bracket (15) are both fixedly connected with a second cylinder (18).

2. A high-stability transmission connection according to claim 1, characterized in that: The elastic force of the elastic rubber pad (13) is greater than the sum of the gravity of the positioning column (12) and the cylinder (14).

3. A high-stability transmission connection according to claim 1, characterized in that: The rotating bracket (15) comprises a hollow rotating block (151), a circular ring (152), a solid circular plate (153) and an arcuate groove (154); the inner wall of the hollow rotating block (151) is in contact with the surface of the threaded cylinder (7); the side surface of the hollow rotating block (151) is in contact with the side surface of the first cylinder (16); the side surface of the second cylinder (18) is fixedly connected to the side surface of the hollow rotating block (151); the side surface of the circular ring (152) and the side surface of the solid circular plate (153) are both fixedly connected to the side surface of the hollow rotating block (151); the left and right ends of the cylinder (14) are both in contact with the side surface of the hollow rotating block (151); the arcuate groove (154) is provided on the surface of the solid circular plate (153); and the inner wall of the arcuate groove (154) is in contact with the surface of the cylinder (14).

4. A high-stability transmission connection according to claim 2, characterized in that: The axis of the circular ring (152) coincides with the axis of the solid circular plate (153), and the distance between the inner wall of the circular ring (152) and the surface of the solid circular plate (153) is equal to the diameter of the cylinder (14).

5. The high-stability transmission connection according to claim 1, characterized in that: The surface of the threaded column (5) and the right side of the threaded barrel (7) are both fitted with a first slip ring (19), the right side of the first slip ring (19) is fixedly connected to a first trapezoidal block (20), the surface of the threaded column (5) and the left side of the stopper (6) are both fitted with a second slip ring (21), the left side of the second slip ring (21) is fixedly connected to a second trapezoidal block (22), the surface of the first trapezoidal block (20) and the surface of the second trapezoidal block (22) are both fitted with the inner wall of the positioning groove (10), and the surface of the first trapezoidal block (20) and the surface of the second trapezoidal block (22) are both fitted with the surface of the elastic rubber pad (13).

6. A high-stability transmission connection according to claim 5, characterized in that: The shape of the first trapezoidal block (20) is the same as that of the second trapezoidal block (22), and the right side of the first trapezoidal block (20) and the left side of the second trapezoidal block (22) are both inclined surfaces.

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