Automatic springback tensioning wheel
By adopting magnetic components and turntable structures in the automatic rebound tensioning wheel, disassembly and assembly without external tools is achieved, and the problem of the protrusion of the connecting components affecting the aesthetics and space occupied is solved, and the operation convenience and stability are improved .
Patent Information
- Application Number
- CN202323652239.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-30
- Publication Date
- 2025-01-17
- Estimated Expiration
- 2033-12-30
AI Technical Summary
The connecting components of the automatic rebound tightening wheel protrude from the outside when used, affecting the beauty and occupying engine space. The existing devices require external tools during disassembly and assembly, resulting in cumbersome and inconvenience.
An automatic rebound tensioner is designed, using components such as adjusting turntables, external screw rotary columns, press-holding plates, bobbin rotary blocks, cylinder blocks and clock magnet blocks, which are required through magnetic attraction and repulsion. The disassembly and assemble external tools and automatically store them when used to reduce space occupation.
It realizes quick disassembly and assembly without external tools, improves the stability and aesthetics of the device, and reduces the use of engine space.
Smart Images
Figure CN222363361U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of tension wheels, in particular to an automatic rebound tension wheel. Background Art
[0002] The automatic rebound tensioner is a belt drive tensioning device that can be achieved by using a fixed or self-adjusting tensioner. The tensioner is generally arranged on the inner side of the loose side so that the belt is only subjected to one-way bending. At the same time, in order to ensure that the wrap angle of the small pulley is not reduced too much, the tensioner should be installed as close to the large pulley as possible.
[0003] If the automatic rebound tensioner is locked by screws, a screw removal tool is required when disassembling the tensioner, which makes the process complicated. In the existing device, the connecting component protrudes from the outside of the tensioner. Although the tensioner can be disassembled without contacting external tools, when in use, the protrusion of the connecting component from the outside of the tensioner not only affects the appearance, but also occupies engine space. Therefore, an automatic rebound tensioner is proposed to address the above problems. Utility Model Content
[0004] The purpose of the utility model is to provide an automatic rebound tensioner to solve the problem that a device protrudes from the outside of the tensioner through a connecting component. Although the tensioner can be disassembled without contacting external tools, when in use, the protrusion of the connecting component from the outside of the tensioner not only affects the appearance, but also occupies the engine space.
[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0006] An automatic rebound tensioning wheel comprises a connecting plate and a reserved threaded hole, wherein a reserved threaded hole is provided on the inner side of one end of the connecting plate, a column-moment sliding groove is provided on the inner side of the connecting plate, a matrix magnetic block is slidably connected to the inner side of the column-moment sliding groove, a cone clamping rod is fixedly connected to one side of the matrix magnetic block, a reserved limiting column groove is provided on the inner side of the lower end of the connecting plate, a limiting ring strip is rotatably connected to the inner side of the reserved limiting column groove, an adjusting dial is fixedly connected to the inner side of the limiting ring strip, a clockwork spring is fixedly connected to the outer side of the adjusting dial, a first magnetic block is fixedly connected to the inner side of the adjusting dial, and the inner side of the lower end of the adjusting dial is fixedly connected to A handle block is connected, the inner side of the adjusting dial is fixedly connected with a second magnetic block, the inner side of the reserved threaded hole is spirally fitted with an outer screw column, the inner side of the outer screw column is provided with a fixing clamping hole, the inner side of the outer screw column is provided with a convex sliding groove, the inner side of the lower end of the convex sliding groove is fixedly connected with a lower limit bottom plate, the inner side of the outer side of the outer screw column is provided with a fixing clamping hole, the inner side of the convex sliding groove is slidably connected with a column magnetic block, the upper end of the column magnetic block is fixedly connected with a rectangular slider, the outer side of the upper end of the outer screw column is fixedly connected with a holding plate, the lower end of the holding plate is fitted with the upper end of the inner rotating shaft, and the outer side of the inner rotating shaft is provided with a tensioning wheel body.
[0007] Preferably, a matrix receiving groove is provided on the inner side of the matrix slider, a convenient rotating block is rotatably connected to the inner side of one end of the matrix receiving groove, a friction-reducing ball is rotatably connected to the inner side of the convenient rotating block, the number of the matrix receiving grooves and the convenient rotating block are both two, the matrix receiving grooves are provided on the inner side of the front end and the rear end of the matrix slider, a bearing is fixedly connected to the inner side of the lower end of the matrix receiving groove, and the inner side of the lower end of the matrix receiving groove is rotatably connected to the convenient rotating block through the bearing.
[0008] Preferably, the reserved threaded hole is opened on the inner side of the upper end of the connecting plate, the reserved threaded hole is connected to the inner side of the column-moment slide groove, one end of the column-moment slide groove is shaped as a cylinder, one end of the column-moment slide groove is shaped as a rectangular body, the outer side of the matrix magnet block slides on the rectangular body inside one end of the column-moment slide groove, and one end of the cone clamping rod slides on the cylinder inside one end of the column-moment slide groove.
[0009] Preferably, there are two first magnetic blocks, which are symmetrically fixed on the inner side of the upper end of the adjusting turntable with the adjusting turntable as the axis, and the first magnetic block and the matrix magnetic block are in the same horizontal plane. The first magnetic block and the matrix magnetic block magnetically repel each other at the rear end, and magnetically attract each other at the front end, and the outer side of the conical clamping rod slides inside the fixed clamping hole.
[0010] Preferably, the upper end of the convex slide groove is shaped like a rectangle, the inner side of the lower end of the convex slide groove is shaped like a cylinder, the lower end of the columnar magnet block is fitted with the upper end of the lower limit bottom plate, the shape of the rectangular body slider is a rectangle, the outer side of the rectangular body slider slides inside the rectangular body at the upper end of the convex slide groove, the outer side of the friction-reducing ball is fitted with the inner side of the upper end of the convex slide groove, the columnar magnet block is magnetically attracted to the second magnet block at the rear end, and the columnar magnet block is magnetically repelled from the second magnet block at the front end.
[0011] Compared with the prior art, the beneficial effects of the utility model are:
[0012] The utility model discloses a device for disassembling and assembling the automatic rebound tensioner by means of the arranged adjusting dial, outer screw column, holding plate, convenient rotating block, column magnet block, first magnet block, second magnet block, fixed clamping hole and matrix magnet block. When the device disassembles and assembles the automatic rebound tensioner, the handle block is rotated, and the handle block drives the first magnet block and the second magnet block to rotate simultaneously through the adjusting dial. At this time, the front end first magnet block is magnetically attracted to the matrix magnet block, and the front end second magnet block is magnetically repelled from the column magnet block. At this time, the matrix magnet block is stored in the column matrix slide groove. Under the action of magnetic repulsion, the column magnet block drives the matrix slider to slide out of the convex slide groove. At this time, the convenient rotating block can be operated to rotate the outer screw column to realize the effect of disassembling the device. The device can realize the disassembly and assembly of the tensioner body and the inner rotating shaft without external tools. The operation is convenient and quick, and the stability of the tensioner body and the inner rotating shaft after installation is improved. At the same time, when the device is normally used, it is automatically stored in the connecting plate, which reduces the occupation of engine space and improves the aesthetic effect of the device. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0014] Figure 2 This is a schematic diagram of the structure of the handle block of the utility model;
[0015] Figure 3 This is a schematic diagram of the structure of the connecting plate of the utility model;
[0016] Figure 4 For this utility model Figure 3 A schematic diagram of the structure at A;
[0017] Figure 5 This is a schematic diagram of the structure of the clockwork spring of the utility model;
[0018] Figure 6 This is a schematic diagram of the structure of the rectangular magnetic block of the utility model;
[0019] Figure 7 This is a schematic diagram of the cutaway structure of the external screw rotating column of the utility model;
[0020] Figure 8 This is a schematic diagram of the convex chute structure of the utility model;
[0021] Fig. 9 This is a schematic diagram of the structure of the rectangular slider of the utility model;
[0022] Fig.10 It is a schematic diagram of the structure of the rotating block of the utility model.
[0023] In the figure: 1. connecting plate; 2. reserved threaded hole; 3. column-torque slide groove; 4. matrix magnet; 5. cone clamping rod; 6. reserved limit column groove; 7. limit ring strip; 8. adjustment dial; 9. spring; 10. first magnet; 11. handle block; 12. second magnet; 13. outer screw column; 14. fixed clamping hole; 15. column magnet; 16. matrix slider; 17. convex slide groove; 18. lower limit bottom plate; 19. matrix storage groove; 20. convenient rotation block; 21. anti-friction ball; 22. inner shaft; 23. tensioning wheel body; 24. holding plate. DETAILED DESCRIPTION
[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.
[0025] See also Figure 1-10 , the utility model provides a technical solution:
[0026] An automatic rebound tensioning wheel comprises a connecting plate 1 and a reserved threaded hole 2, a reserved threaded hole 2 is provided on the inner side of one end of the connecting plate 1, a column-torque slide groove 3 is provided on the inner side of the connecting plate 1, a matrix magnetic block 4 is slidably connected to the inner side of the column-torque slide groove 3, a cone clamping rod 5 is fixedly connected to one side of the matrix magnetic block 4, a reserved limiting column groove 6 is provided on the inner side of the lower end of the connecting plate 1, a limiting ring strip 7 is rotatably connected to the inner side of the reserved limiting column groove 6, an adjusting dial 8 is fixedly connected to the inner side of the limiting ring strip 7, a clockwork spring 9 is fixedly connected to the outer side of the adjusting dial 8, a first magnetic block 10 is fixedly connected to the inner side of the adjusting dial 8, a handle block 11 is fixedly connected to the inner side of the lower end of the adjusting dial 8, and a first magnetic block 10 is fixedly connected to the inner side of the adjusting dial 8. A second magnetic block 12 is fixedly connected to the inner side of the turntable 8, an outer screw column 13 is spirally fitted on the inner side of the reserved threaded hole 2, a fixed clamping hole 14 is opened on the inner side of the outer screw column 13, a convex sliding groove 17 is opened on the inner side of the outer screw column 13, a lower limit bottom plate 18 is fixedly connected to the inner side of the lower end of the convex sliding groove 17, a fixed clamping hole 14 is opened on the inner side of the outer side of the outer screw column 13, a columnar magnetic block 15 is slidably connected to the inner side of the convex sliding groove 17, a rectangular slider 16 is fixedly connected to the upper end of the columnar magnetic block 15, a holding plate 24 is fixedly connected to the outer side of the upper end of the outer screw column 13, the lower end of the holding plate 24 is fitted with the upper end of the inner shaft 22, and a tensioning wheel body 23 is provided on the outer side of the inner shaft 22.
[0027] A rectangular body receiving groove 19 is provided on the inner side of the rectangular body slider 16, and a convenient rotating block 20 is rotatably connected to the inner side of one end of the rectangular body receiving groove 19, and a friction reducing ball 21 is rotatably connected to the inner side of the convenient rotating block 20. The number of the rectangular body receiving groove 19 and the convenient rotating block 20 are both two. The rectangular body receiving groove 19 is provided on the inner side of the front end and the rear end of the rectangular body slider 16, and a bearing is fixedly connected to the inner side of the lower end of the rectangular body receiving groove 19. The inner side of the lower end of the rectangular body receiving groove 19 is rotatably connected to the convenient rotating block 20 through the bearing. The convenient rotating block 20 is turned to make the convenient rotating block 20 rotate inside the rectangular body receiving groove 19, which is convenient for people to operate. The anti-friction ball 21 connected to the inner side rotates to reduce the friction between the convenient rotating block 20 and the inner side of the upper end of the convex slide groove 17 when the convenient rotating block 20 moves. The reserved threaded hole 2 is opened on the inner side of the upper end of the connecting plate 1, and the reserved threaded hole 2 is connected to the inner side of the column-moment slide groove 3. One end of the column-moment slide groove 3 is shaped as a cylinder, and one end of the column-moment slide groove 3 is shaped as a rectangular body. The outer side of the matrix magnetic block 4 slides in the rectangular body inside one end of the column-moment slide groove 3, and one end of the cone clamping rod 5 slides in the cylinder inside one end of the column-moment slide groove 3, which is convenient for the outer screw column 13 to be installed in the reserved threaded hole 2, and at the same time, it is convenient for the cone clamping rod 5 and the matrix magnetic block 4 to slide in the column-moment The inner side of the slide groove 3 limits the outer screw column 13, thereby improving the stability of the outer screw column 13. There are two first magnetic blocks 10. The first magnetic block 10 is symmetrically fixed on the inner side of the upper end of the adjusting turntable 8 with the adjusting turntable 8 as the axis. The first magnetic block 10 and the matrix magnetic block 4 are in the same horizontal plane. The first magnetic block 10 at the rear end and the matrix magnetic block 4 are magnetically repelled, and the first magnetic block 10 at the front end and the matrix magnetic block 4 are magnetically attracted. The outer side of the cone clamping rod 5 slides inside the fixed clamping hole 14. The first magnetic block 10 and the matrix magnetic block 4 are magnetically repelled, and the outer side of the cone clamping rod 5 can be limited to the inner side of the reserved threaded hole 2, thereby improving the stability of the outer screw column 13. The upper end of the convex groove 17 is shaped as a rectangular body, and the inner side of the lower end of the convex groove 17 is shaped as a cylindrical body. The lower end of the column magnet 15 is fitted with the upper end of the lower limit bottom plate 18. The shape of the rectangular body of the rectangular body slider 16, the outer side of the rectangular body slider 16 slides inside the rectangular body at the upper end of the convex groove 17, the outer side of the friction-reducing ball 21 is fitted with the inner side of the upper end of the convex groove 17, the column magnet 15 is magnetically attracted to the rear end second magnet 12, and the column magnet 15 is magnetically repelled from the front end second magnet 12. Under the effect of the magnetic repulsion between the front end second magnet 12 and the column magnet 15, the column magnet 15 drives the matrix slider 16 to slide on the inner side of the convex groove 17.
[0028] Working process: when the device is in use and the inner shaft 22 and the tensioning wheel body 23 need to be disassembled, the handle block 11 is turned. The rotation of the handle block 11 drives the adjusting dial 8 fixedly connected at the upper end to rotate. A groove is provided on the inner side of the lower end of the adjusting dial 8 to facilitate manual operation. The adjusting dial 8 is rotatably connected to the inner side of the lower end of the connecting plate 1 through the limiting ring strip 7. A limiting rotation groove is provided on the inner side of the lower end of the connecting plate 1. The limiting ring strip 7 has the effect of limiting the position of the adjusting dial 8 when it rotates. The rotation of the adjusting dial 8 drives the spring spring 9 fixedly connected on the outer side to be elastically stored. The spring spring 9 has the effect of resetting the adjusting dial 8 when it is idle. At this time, the second magnetic block 12 at the rear end is away from the cylindrical magnetic block 15. After the adjusting dial 8 rotates 180 degrees At this time, the second magnetic block 12 at the front end is aligned with the column magnetic block 15. Under the effect of magnetic repulsion between the second magnetic block 12 at the front end and the column magnetic block 15, the column magnetic block 15 drives the matrix slider 16 to slide on the inside of the convex slide groove 17. At this time, the lower end of the column magnetic block 15 is away from the lower limit bottom plate 18, and the lower limit bottom plate 18 has the effect of limiting the range of movement of the column magnetic block 15. At this time, the matrix slider 16 protrudes from a part of the upper end of the convex slide groove 17, and at the same time, the rotating block 20 completely protrudes from the upper end of the convex slide groove 17. At the same time, the adjustment dial 8 rotates to drive the two first magnetic blocks 10 fixedly connected on the inner side to rotate. After the adjustment dial 8 rotates 180 degrees, the first magnetic block 10 at the front end is aligned with the matrix magnetic block 4. Under the effect of magnetic attraction, the matrix magnetic block 4 and the cone clamping rod 5 move. The matrix magnetic block 4 is in the shape of a rectangular body. The matrix magnetic block 4 slides on the inner side of the column matrix slide groove 3 to play a limiting effect. At this time, the cone clamping rod 5 is completely received in the column matrix slide groove 3, and the cone clamping rod 5 is away from the inner side of the fitted fixed clamping hole 14. The convenient rotating block 20 is moved to make the convenient rotating block 20 rotate in the matrix receiving groove 19, which is convenient for people to operate. The friction-reducing ball 21 rotatably connected to the inner side of the convenient rotating block 20 reduces the friction between the convenient rotating block 20 and the inner side of the upper end of the convex slide groove 17 when the convenient rotating block 20 moves. The rotation of the convenient rotating block 20 drives the rotatably connected matrix slider 16 to rotate. According to the shape of the matrix slider 16, the outer screw sliding on the outside can be driven when the matrix slider 16 rotates. The rotating column 13 rotates, and the rotation of the outer screw column 13 drives the rotation of the fixedly connected holding plate 24, and the holding plate 24 gradually moves away from the inner rotating shaft 22. When the outer screw column 13 is separated from the inner side of the reserved threaded hole 2, the outer screw column 13 can be taken out, and the disassembly of the device can be completed. During installation, the same principle is used to rotate the outer screw column 13 inside the reserved threaded hole 2. When the outer screw column 13 is rotated to the bottom, the handle block 11 is released, and the first magnetic block 10 and the second magnetic block 12 are driven to rotate under the torsion of the spring 9. At this time, the first magnetic block 10 and the matrix magnetic block 4 repel each other magnetically, and the outer screw column 13 can be limited to the inner side of the reserved threaded hole 2, thereby improving the stability of the outer screw column 13. At the same time, under the magnetic attraction between the second magnetic block 12 and the column magnetic block 15,The columnar magnetic block 15, the rectangular slider 16 and the rotating block 20 are pulled and stored in the convex sliding groove 17.
[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. An automatic rebound tensioner, comprising a connecting plate (1) and a reserved threaded hole (2), characterized in that: A reserved threaded hole (2) is provided on the inner side of one end of the connecting plate (1); a column-horizontal slide groove (3) is provided on the inner side of the connecting plate (1); a matrix magnetic block (4) is slidably connected to the inner side of the column-horizontal slide groove (3); a conical clamping rod (5) is fixedly connected to one side of the matrix magnetic block (4); a reserved limiting column groove (6) is provided on the inner side of the lower end of the connecting plate (1); a limiting ring strip (7) is rotatably connected to the inner side of the reserved limiting column groove (6); an adjusting dial (8) is fixedly connected to the inner side of the limiting ring strip (7); a spring (9) is fixedly connected to the outer side of the adjusting dial (8); a first magnetic block (10) is fixedly connected to the inner side of the adjusting dial (8); a handle block (11) is fixedly connected to the inner side of the lower end of the adjusting dial (8); and a first magnetic block (10) is fixedly connected to the inner side of the adjusting dial (8). Two magnetic blocks (12), the inner side of the reserved threaded hole (2) is spirally fitted with an outer screw column (13), the inner side of the outer screw column (13) is provided with a fixing clamping hole (14), the inner side of the outer screw column (13) is provided with a convex sliding groove (17), the inner side of the lower end of the convex sliding groove (17) is fixedly connected with a lower limit bottom plate (18), the inner side of the outer side of the outer screw column (13) is provided with a fixing clamping hole (14), the inner side of the convex sliding groove (17) is slidably connected with a columnar magnetic block (15), the upper end of the columnar magnetic block (15) is fixedly connected with a rectangular slider (16), the outer side of the upper end of the outer screw column (13) is fixedly connected with a holding plate (24), the lower end of the holding plate (24) is fitted with the upper end of the inner shaft (22), and the outer side of the inner shaft (22) is provided with a tensioning wheel body (23).
2. The automatic rebound tensioner according to claim 1, characterized in that: A matrix receiving groove (19) is provided on the inner side of the matrix slider (16); a convenient rotating block (20) is rotatably connected to the inner side of one end of the matrix receiving groove (19); a friction reducing ball (21) is rotatably connected to the inner side of the convenient rotating block (20); the number of the matrix receiving groove (19) and the convenient rotating block (20) are both two; the matrix receiving groove (19) is provided on the inner side of the front end and the rear end of the matrix slider (16); a bearing is fixedly connected to the inner side of the lower end of the matrix receiving groove (19); and the inner side of the lower end of the matrix receiving groove (19) is rotatably connected to the convenient rotating block (20) via the bearing.
3. The automatic rebound tensioner according to claim 1, characterized in that: The reserved threaded hole (2) is formed on the inner side of the upper end of the connecting plate (1), the reserved threaded hole (2) is connected to the inner side of the column-moment slide groove (3), one end of the column-moment slide groove (3) is formed in the shape of a cylinder, one end of the column-moment slide groove (3) is formed in the shape of a rectangular body, the outer side of the rectangular body magnetic block (4) slides on the rectangular body inside one end of the column-moment slide groove (3), and one end of the conical clamping rod (5) slides on the cylinder inside one end of the column-moment slide groove (3).
4. The automatic rebound tensioner according to claim 1, characterized in that: The number of the first magnetic blocks (10) is two. The first magnetic blocks (10) are symmetrically fixed on the inner side of the upper end of the adjusting turntable (8) with the adjusting turntable (8) as the axis. The first magnetic blocks (10) and the rectangular magnetic blocks (4) are in the same horizontal plane. The first magnetic blocks (10) and the rectangular magnetic blocks (4) are magnetically repelled at the rear end and magnetically attracted at the front end. The outer side of the conical clamping rod (5) slides inside the fixed clamping hole (14).
5. The automatic rebound tensioner according to claim 2, characterized in that: The upper end of the convex slide groove (17) is shaped as a rectangular body, the inner side of the lower end of the convex slide groove (17) is shaped as a cylindrical body, the lower end of the columnar magnet block (15) is in contact with the upper end of the lower limit bottom plate (18), the rectangular body slider (16) is shaped as a rectangular body, the outer side of the rectangular body slider (16) slides inside the rectangular body at the upper end of the convex slide groove (17), the outer side of the anti-friction ball (21) is in contact with the inner side of the upper end of the convex slide groove (17), the columnar magnet block (15) is magnetically attracted to the rear second magnet block (12), and the columnar magnet block (15) is magnetically repelled from the front second magnet block (12).