Transmission mechanism of shifting plate

Abstract

The transmission mechanism of the shifting plate comprises a transmission shaft, a shifting plate body and a shifting rod, a fixed cylinder is arranged in the shifting plate body, a movable block is connected to the interior of the fixed cylinder in a sliding mode, an insertion rod is arranged on the outer wall of the movable block, an insertion hole is formed in the inner wall of the transmission shaft, and the insertion rod is inserted into the insertion hole. And an extrusion block is slidably connected to the interior of the fixed cylinder and abuts against the moving block, a guide rod is arranged on the inner wall of the fixed cylinder, and the extrusion block is slidably connected to the interior of the guide rod in a sleeved mode. The extrusion screw is rotated to drive the pressing plate to move to extrude the extrusion block, the extrusion block extrudes the inclined surface of the moving block to enable the moving block to move, the moving block drives the inserting rod to move to enable the inserting rod to be inserted into the inserting hole, and then the shifting plate body can be fixed to the transmission shaft. The fixing structure is firmer, and the reliability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of dial plates, and particularly relates to a transmission mechanism of a dial plate. Background Art

[0002] The variable speed drum mechanism is a main component of a transmission and an important component for shifting gears in motorcycles and all-terrain vehicles. Each component of the variable speed drum mechanism is installed in the gearbox body of the transmission. The main body of the variable speed drum of the variable speed drum mechanism is driven to rotate by a shift control mechanism, so as to drive a shift dial plate sleeved on the main body of the variable speed drum to move along the axial direction of the main body of the variable speed drum. The shift dial plate makes the free gear of the transmission move to achieve shifting.

[0003] For example, a variable speed drum stop mechanism with the publication number of CN216666462U and the publication date of June 3, 2022. One end of the variable speed drum is provided with a shift dial plate, and the shift dial plate is in transmission cooperation with the variable speed drum. The stop mechanism includes a stop arm, a mounting bolt, a torsion spring and a stop member; the mounting bolt includes a baffle portion, a shaft body portion and a screw portion arranged in sequence along its axial direction, and the diameters of the baffle portion, the shaft body portion and the screw portion decrease in sequence; a stop member is rotatably arranged at the first end of the stop arm, and the second end of the stop arm is rotatably arranged on the shaft body portion; the torsion spring is sleeved on the shaft body portion and is located on one side of the stop arm. The first end of the torsion spring is connected to the gearbox body, and the second end of the torsion spring is connected to the stop arm; the screw portion is in threaded connection with the gearbox body; the stop arm presses the stop member against the shift dial plate under the pre-tightening force of the torsion spring to position and stop the variable speed drum.

[0004] In the above and in the prior art, when fixing the dial plate to the transmission shaft, usually a single screw is used to fix the dial plate, and the fixing is not firm enough and the reliability is low. Therefore, it is urgent to design a transmission mechanism of a dial plate to solve the above problems. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a transmission mechanism of a dial plate to solve the above deficiencies in the prior art.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A transmission mechanism for a dial plate, comprising a transmission shaft, a dial plate body and a dial rod. A fixed cylinder is arranged inside the dial plate body, and a moving block is slidably connected inside the fixed cylinder. A plug rod is arranged on the outer wall of the moving block. A jack is opened on the inner wall of the transmission shaft, and the plug rod is inserted into the jack. An extrusion block is slidably connected inside the fixed cylinder, and the extrusion block abuts against the moving block. A guide rod is arranged on the inner wall of the fixed cylinder, and the extrusion block is slidably sleeved inside the guide rod. A spring connected to the extrusion block is arranged on the inner wall at one end of the fixed cylinder, and the spring is sleeved outside the guide rod. An extrusion screw is threadedly inserted into one end of the fixed cylinder, and a pressing plate is arranged at the end of the extrusion screw located inside the fixed cylinder. The pressing plate contacts the extrusion block.

[0008] Further, a plurality of through holes are opened inside the dial plate body, and the dial rod is inserted into the through holes. Limiting blocks are arranged on the outer walls of the top and bottom of the dial rod.

[0009] Further, a guide groove and a limiting groove are respectively opened inside the through hole, and the limiting block slidably penetrates inside the guide groove. The limiting block is clamped inside the limiting groove.

[0010] Further, a plurality of fixing screws are threadedly inserted into the outer wall of one side of the dial plate body, and a resisting plate is arranged at the end of the fixing screw located inside the through hole. The resisting plates respectively contact one end of the dial rod and the outer wall of one side of the limiting block.

[0011] Further, a mounting ring is welded on the outer wall of the transmission shaft, and an arc-shaped plate is slidably connected inside the mounting ring. A fixing rod is arranged on the outer wall of the arc-shaped plate.

[0012] Further, mounting screws are threadedly inserted into the outer walls of the top and bottom of the mounting ring, and the ends of the mounting screws located inside the mounting ring are rotatably connected to the outer wall of the arc-shaped plate through bearings.

[0013] Further, a deviation prevention block is arranged on the outer wall of one side of the arc-shaped plate, and a deviation prevention groove is opened on the inner wall of the mounting ring. The deviation prevention block is slidably connected inside the deviation prevention groove.

[0014] In the above technical solution, a transmission mechanism of a dial plate provided by the present utility model: (1) By providing a dial plate body, a fixed cylinder, a moving block, a plug rod, a jack, a pressing block, a guide rod, a spring, a pressing screw and a pressing plate, rotating the pressing screw can drive the pressing plate to move and press the pressing block. The pressing block will press the inclined surface of the moving block to make the moving block move. The moving block will drive the plug rod to move so that the plug rod is inserted into the jack, and then the dial plate body can be fixed on the transmission shaft. Compared with using a single screw to fix the dial plate body, this fixing structure is more firm and improves the reliability; (2) By providing a dial rod, a through hole, a limiting block, a guiding groove, a limiting groove, a fixing screw and a supporting plate, when the dial rod needs to be replaced, rotate the fixing screw to drive the supporting plate away from the dial rod and the limiting block. Rotate the dial rod to align the limiting block with the guiding groove, and pull the dial rod so that the limiting block slides inside the limiting groove until it slides out from the inside of the dial plate body, realizing the function of replacing the dial rod; (3) By providing an installation ring, an arc plate, a fixing rod, an installation screw, an anti-deviation groove and an anti-deviation block, one end of the transmission shaft of the speed change drum is inserted between the installation ring and the arc plate. Rotating the installation screw can drive the arc plate and the fixing rod to move, and can make the fixing rod inserted into the fixing hole reserved on the speed change drum, and then the transmission shaft can be fixed, which is very convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For those of ordinary skill in the art, other drawings can also be obtained according to these drawings.

[0016] Figure 1 FIG. 1 is a schematic perspective view of an embodiment of a transmission mechanism of a dial plate according to the present utility model.

[0017] Figure 2 FIG. 2 is a schematic internal structure view of an embodiment of a transmission mechanism of a dial plate according to the present utility model.

[0018] Figure 3 FIG. 3 is a schematic internal structure view of an installation ring of an embodiment of a transmission mechanism of a dial plate according to the present utility model.

[0019] Figure 4 FIG. 4 is a schematic through-hole structure view of an embodiment of a transmission mechanism of a dial plate according to the present utility model.

[0020] DESCRIPTION OF THE REFERENCE NUMERALS:

[0021] 1. Transmission shaft; 2. Paddle body; 3. Fixed cylinder; 4. Moving block; 5. Insert rod; 6. Insert hole; 7. Extrusion block; 8. Guide rod; 9. Spring; 10. Extrusion screw; 11. Pressure plate; 12. Paddle lever; 13. Through hole; 14. Limit block; 15. Guide groove; 16. Limit groove; 17. Fixed screw; 18. Supporting plate; 19. Installation ring; 20. Arc plate; 21. Fixed rod; 22. Installation screw; 23. Anti-deviation groove; 24. Anti-deviation block. Detailed implementation mode

[0022] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0023] As Figures 1-4 shown, a transmission mechanism of a paddle provided by an embodiment of the present invention includes a transmission shaft 1, a paddle body 2 and a paddle lever 12. A fixed cylinder 3 is arranged inside the paddle body 2, and a moving block 4 is slidably connected inside the fixed cylinder 3. An insert rod 5 is arranged on the outer wall of the moving block 4. An insert hole 6 is opened on the inner wall of the transmission shaft 1, and the insert rod 5 is inserted into the insert hole 6. An extrusion block 7 is slidably connected inside the fixed cylinder 3, and the extrusion block 7 abuts against the moving block 4. A guide rod 8 is arranged on the inner wall of the fixed cylinder 3, and the extrusion block 7 is slidably sleeved inside the guide rod 8. A spring 9 connected to the extrusion block 7 is arranged on the inner wall of one end of the fixed cylinder 3, and the spring 9 is sleeved outside the guide rod 8. An extrusion screw 10 is threadedly inserted into one end of the fixed cylinder 3, and a pressure plate 11 is arranged at the end of the extrusion screw 10 inside the fixed cylinder 3. The pressure plate 11 contacts the extrusion block 7.

[0024] A transmission mechanism of a dial plate provided by the utility model includes a transmission shaft 1, a dial plate body 2 and a dial rod 12. A fixed cylinder 3 is arranged inside the dial plate body 2, and a moving block 4 is slidably connected inside the fixed cylinder 3. A plug rod 5 is arranged on the outer wall of the moving block 4, and a jack 6 is opened on the inner wall of the transmission shaft 1, and the plug rod 5 is inserted into the jack 6. A pressing block 7 is slidably connected inside the fixed cylinder 3, and the pressing block 7 abuts against the moving block 4. A guide rod 8 is arranged on the inner wall of the fixed cylinder 3, and the pressing block 7 is slidably sleeved inside the guide rod 8. A spring 9 connected to the pressing block 7 is arranged on the inner wall at one end of the fixed cylinder 3, and the spring 9 is sleeved outside the guide rod 8. A pressing screw 10 is threadedly inserted into one end of the fixed cylinder 3, and a pressing plate 11 is arranged at the end of the pressing screw 10 located inside the fixed cylinder 3, and the pressing plate 11 contacts the pressing block 7. When installing the transmission shaft 1 and the dial plate body 2, the fixed cylinder 3 is inserted into the transmission shaft 1, and the pressing screw 10 is rotated to drive the pressing plate 11 to move and press the pressing block 7, which can make the pressing block 7 move. When the pressing block 7 moves, it will press the inclined surface of the moving block 4 to make the moving block 4 move, and the moving block 4 will drive the plug rod 5 to move so that the plug rod 5 is inserted into the jack 6, and then the dial plate body 2 can be fixed on the transmission shaft 1. This structure can make the installation of the dial plate body 2 on the transmission shaft 1 more firm.

[0025] By setting: rotating the pressing screw 10 can drive the pressing plate 11 to move and press the pressing block 7, the pressing block 7 will press the inclined surface of the moving block 4 to make the moving block 4 move, and the moving block 4 will drive the plug rod 5 to move so that the plug rod 5 is inserted into the jack 6, and then the dial plate body 2 can be fixed on the transmission shaft 1. Compared with using a single screw to fix the dial plate body 2, this fixing structure is more firm and improves the reliability.

[0026] In an embodiment provided by the utility model, as Figure 2 and Figure 4 shown, a plurality of through holes 13 are opened inside the dial plate body 2, and the dial rod 12 is inserted into the through holes 13. Limiting blocks 14 are arranged on the outer walls of the top and bottom of the dial rod 12, and the through holes 13 are used to fix the dial rod 12.

[0027] In another embodiment provided by the utility model, as Figure 2 and Figure 4 shown, a guiding groove 15 and a limiting groove 16 are respectively opened inside the through hole 13, and the limiting block 14 slidably penetrates through the guiding groove 15, and the limiting block 14 is clamped inside the limiting groove 16, which can play a limiting function on the dial rod 12.

[0028] In still another embodiment provided by the utility model, as Figure 1 and Figure 2As shown, a number of fixing screws 17 are threadedly inserted into the outer wall on one side of the dial body 2, and a holding plate 18 is provided at one end of the fixing screw 17 located inside the through hole 13. The holding plate 18 is in contact with one end of the dial rod 12 and the outer wall of one side of the limiting block 14 respectively. Rotating the fixing screw 17 can drive the holding plate 18 to move to fix one end of the dial rod 12.

[0029] In an embodiment provided by the present utility model, as Figure 1 、 2 and Figure 3 shown, an installation ring 19 is welded on the outer wall of the transmission shaft 1, and an arc-shaped plate 20 is slidably connected inside the installation ring 19. A fixing rod 21 is provided on the outer wall of the arc-shaped plate 20. The installation ring 19 is used for assembling the transmission shaft 1 and the speed change drum.

[0030] In another embodiment provided by the present utility model, as Figure 2 and Figure 3 shown, installation screws 22 are threadedly inserted into the outer walls at the top and bottom of the installation ring 19 respectively, and one end of the installation screw 22 located inside the installation ring 19 is rotatably connected to the outer wall of the arc-shaped plate 20 through a bearing. Rotating the installation screw 22 can drive the arc-shaped plate 20 to move.

[0031] In still another embodiment provided by the present utility model, as Figure 2 and Figure 3 shown, a deviation prevention block 24 is provided on the outer wall of one side of the arc-shaped plate 20, and a deviation prevention groove 23 is formed on the inner wall of the installation ring 19. The deviation prevention block 24 is slidably connected inside the deviation prevention groove 23, which can play a role in guiding and limiting the arc-shaped plate 20.

[0032] Working principle: When installing the transmission shaft 1 and the dial body 2, insert the fixed cylinder 3 into the inside of the transmission shaft 1. Rotate the extrusion screw 10 to drive the pressure plate 11 to move and extrude the extrusion block 7. The extrusion block 7 will extrude the inclined surface of the moving block 4 to make the moving block 4 move. The moving block 4 will drive the insertion rod 5 to move so that the insertion rod 5 is inserted into the insertion hole 6, and then the dial body 2 can be fixed on the transmission shaft 1, improving the reliability. Then, one end of the transmission drum rotating shaft connected to the transmission shaft 1 is inserted into the gap between the mounting ring 19 and the arc plate 20. Rotating the mounting screw 22 can drive the arc plate 20 and the fixed rod 21 to move, and the fixed rod 21 can be inserted into the reserved fixing hole on the transmission drum, so that the transmission shaft 1 can be fixed on the transmission drum, which is very convenient. When the transmission drum rotates, it will drive the transmission shaft 1 and the dial body 2 to rotate. When the arc plate 20 moves, the anti-deviation block 24 will slide inside the anti-deviation groove 23, which can play a guiding role for the arc plate 20 and prevent the arc plate 20 from deviating when moving. When the dial rod 12 needs to be replaced, rotate the fixing screw 17 to drive the abutting plate 18 away from the dial rod 12 and the limiting block 14. Rotate the dial rod 12 to align the limiting block 14 with the guiding groove 15, and pull the dial rod 12 so that the limiting block 14 slides inside the limiting groove 16 until it slides out of the dial body 2, realizing the function of replacing the dial rod 12 and avoiding the problem that only the whole dial needs to be replaced when the dial rod 12 is damaged.

[0033] Only some exemplary embodiments of the present invention are described by way of illustration above. Undoubtedly, for those of ordinary skill in the art, without departing from the spirit and scope of the present invention, the described embodiments can be modified in various different ways. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the protection scope of the claims of the present invention.

Claims

1. A transmission mechanism of a shifting plate, comprising a transmission shaft (1), a shifting plate body (2) and a shifting rod (12), characterized in that: The paddle body (2) is provided with a fixed cylinder (3) inside, and a moving block (4) is slidably connected inside the fixed cylinder (3), an insertion rod (5) is provided on the outer wall of the moving block (4), a plug hole (6) is provided on the inner wall of the transmission shaft (1), and the plug rod (5) is inserted into the inside of the plug hole (6), an extrusion block (7) is slidably connected inside the fixed cylinder (3), and the extrusion block (7) is abutted against the moving block (4), and the inner wall of the fixed cylinder (3) is provided with a plug hole (6) on the inner wall of the transmission shaft (1). A guide rod (8) is provided, and the extrusion block (7) is slidably sleeved inside the guide rod (8); a spring (9) connected to the extrusion block (7) is provided on the inner wall of one end of the fixed cylinder (3), and the spring (9) is sleeved outside the guide rod (8); an extrusion screw (10) is threadedly inserted at one end of the fixed cylinder (3), and a pressure plate (11) is provided at one end of the extrusion screw (10) located inside the fixed cylinder (3), and the pressure plate (11) is in contact with the extrusion block (7).

2. The transmission mechanism of the paddle according to claim 1, characterized in that: A plurality of through holes (13) are provided inside the shift plate body (2), and the shift rod (12) is inserted into the through hole (13). Limiting blocks (14) are provided on the outer walls of the top and bottom of the shift rod (12).

3. The transmission mechanism of the paddle according to claim 2, characterized in that: The through hole (13) is provided with a guide groove (15) and a limit groove (16) respectively, and the limit block (14) slides through the guide groove (15), and the limit block (14) is clamped in the limit groove (16).

4. The transmission mechanism of the paddle according to claim 3, characterized in that: A plurality of fixing screws (17) are threadedly inserted on the outer wall of one side of the shift plate body (2), and a supporting plate (18) is provided at one end of the fixing screw (17) located inside the through hole (13), and the supporting plate (18) is respectively in contact with one end of the shift rod (12) and one side outer wall of the limit block (14).

5. The transmission mechanism of the paddle according to claim 4, characterized in that: A mounting ring (19) is welded on the outer wall of the transmission shaft (1), and an arc-shaped plate (20) is slidably connected inside the mounting ring (19), and a fixing rod (21) is arranged on the outer wall of the arc-shaped plate (20).

6. The transmission mechanism of the paddle according to claim 5, characterized in that: The outer walls of the top and bottom of the mounting ring (19) are both threadedly inserted with mounting screws (22), and one end of the mounting screw (22) located inside the mounting ring (19) is rotatably connected to the outer wall of the arc plate (20) through a bearing.

7. The transmission mechanism of the paddle according to claim 6, characterized in that: An anti-deflection block (24) is provided on the outer wall of one side of the arc-shaped plate (20), and an anti-deflection groove (23) is provided on the inner wall of the mounting ring (19), and the anti-deflection block (24) is slidably connected inside the anti-deflection groove (23).

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