AU2019200168B2 - A transmission shaft deflection-controlling device - Google Patents

Abstract

This invention discloses a transmission shaft deflection-controlling device, comprising a main machine body (10), a tire driving cavity (41) fixedly arranged in said main machine body (10), a reversing cavity (39) fixedly set in said main machine body (10) which is on the right side of said tire driving cavity (41), a pedal control cavity (26) fixedly arranged in said main machine body (10) which is on the right side of said reversing cavity (39), a dynamic cavity (27) fixedly set in said main machine body (10) which is on the right side of said pedal control cavity (26), a first tapered groove (23) extending rightward disposed on the right end wall of said reversing cavity (39) and a second tapered groove (24) extending leftward set on the left end wall of said pedal control cavity (26). 10 41 40 39 38 736 35 34 33 32 31 30 -29 14-- ~1 28 17 18 19 0 21 2 23 A 24 25 26 B 27 Figure 1 44 45 46 47 Figure 2

Description

AN TRANSMISSION SHAFT DEFLECTION-CONTROLLING DEVICE

TECHNICAL FIELD [0001] The present invention relates to the technical field of dynamic control, in particular to a transmission shaft deflection-controlling device.

BACKGROUND OF THE INVENTION [0002] With the development of science and technology and the progress of the society, our country has always been promoting the development of high technology. However, there has been a rather difficult technical problem in the field of dynamic control, that is, how to control the deflection of transmission shaft manually in the way of mechanical transmission, so that the state of motion of some machine such as scooter and the like can be controlled, and how to use the deflection of transmission shaft to control moving, rotating and braking of the scooter. Nowadays, the products on the market mainly depend on induction of gravity, which causes a certain delay, therefore a device is urgently needed to solve such problems.

BRIEF SUMMARY OF THE INVENTION [0003] The technical problem to be solved by the invention is to provide a transmission shaft deflection-controlling device, so as to overcome the problems existing in the prior art.

[0004] The following technical plan is adopted by the invention: a transmission shaft deflection-controlling device of this invention comprises a main machine body, a tire driving cavity fixedly arranged in said main machine body, a reversing cavity fixedly set in said main machine body which is on the right side of said tire driving cavity, a pedal control cavity fixedly arranged in said main machine body which is on the right side of said reversing cavity, a dynamic cavity fixedly set in said main machine body which is on the right side of said pedal control cavity, a first tapered groove extending rightward disposed on the right end wall

2019200168 11 Feb 2019 of said reversing cavity, a second tapered groove extending leftward set on the left end wall of said pedal control cavity, wherein the right extending tail end of said first tapered groove is communicated with the left extending tail end of said second tapered groove; a traveling pedal groove set on the top end face of said main machine body which is above said pedal control cavity, a braking pedal groove set on the top end wall of said main machine body which is on the right side of said traveling pedal groove, ball fixing grooves symmetrically disposed on the upper and lower end walls of the portion where the first tapered groove and the second tapered groove are connected to each other, positioning balls which are in rolling fit connection with said ball fixing grooves, wherein the portion which is between the upper said positioning ball and the lower said positioning ball is provided with a deflection shaft extending left and right, and said positioning ball is in rolling fit connection with said deflection shaft, and the left extending tail end of said deflection shaft penetrates through said first tapered groove and into said reversing cavity and is fixedly provided with a reversing gear in a circumferential direction, and the right extending tail end of said deflection shaft penetrates through said second tapered groove and into said pedal control cavity and is fixedly provided with a first concave block in a circumferential direction; annular grooves up and down symmetrically disposed in the end wall of said first tapered groove, annular sliders which are in sliding fit connection with said annular groove, an annular spring fixedly arranged between one end of said annular sliders, extending into said annular groove, and the tail end of said annular groove, deflection shaft reset blocks set on said deflection shaft in said first tapered groove, wherein said deflection shaft reset blocks are in rotational engagement with said deflection shaft, and the top end face of said deflection shaft reset blocks is fixedly coupled with one end of said annular slider above, extending into said first tapered groove, and the bottom end face of said deflection shaft reset blocks is fixedly coupled with one end of said annular sliders, extending into said first tapered groove; wherein the right end wall of said braking pedal groove in the upper and lower sides of said first tapered groove is in rotational engagement with tilting shafts which are symmetrical and tilted, and the tail end of said tilting shaft, extending said reversing cavity, is fixedly provided with a tilting spur gear in a circumferential direction; wherein the wall between said tire driving cavity and said reversing cavity is in rotational engagement with tilting and rotating linkages which are up

2019200168 11 Feb 2019 and down symmetrical and tilted, and the tail end of said tilting and rotating linkages, extending into said reversing cavity, is in power connection with said tilting spur gear.

[0005] As an optimized technical proposal, a first cross is in rotational engagement with said tilting and rotating linkage, and second concave blocks are in rotational engagement with the other two ends of said first cross; a first rotating shaft which extends leftward is fixedly disposed on the left end face of said second concave block, wherein the left extending tail end of said first rotating shaft extends into the left end wall of said tire driving cavity and is in rotational engagement with left end wall of said tire driving cavity; a first spur gear is fixedly set on said first rotating shaft in a circumferential direction; wherein a first tire shaft extending left and right is in rotational engagement between the left end wall of said tire driving cavity and the left end face of said main machine body, and the left extending tail end of said first tire shaft penetrates out of said main machine body and is fixedly provided with a first tire in a circumferential direction, and the right extending tail end of said first tire shaft penetrates into said tire driving cavity and is in rotational engagement with the left end face of said tire driving cavity; a second spur gear is fixedly arranged on said first tire shaft in said tire driving cavity in a circumferential direction; wherein said second spur gear engages with said first spur gear which is located below said second spur gear; wherein a second rotating shaft which is above said first tire shaft is in rotational engagement between the left and right end walls of said tire driving cavity, and said first rotating shaft is above said second rotating shaft; a third spur gear fixedly set on said second rotating shaft in a circumferential direction; wherein said third spur gear engages with said second spur gear and said first spur gear above.

[0006] As an optimized technical proposal, the wall between said traveling pedal groove and said pedal control cavity is in sliding fit connection with a pressing slide bar extending up and down, the top end face of which is fixedly provided with a traveling pedal; a first spring is fixedly disposed between the bottom end face of said traveling pedal and the bottom end wall of said traveling pedal groove; wherein the wall between said traveling pedal groove and said braking pedal groove is in rotational engagement with a lever, two ends of which respectively extend into said traveling pedal groove and said braking pedal groove; wherein the extension

2019200168 11 Feb 2019 tail end of said lever, extending into said traveling pedal groove, is located below said traveling pedal and may touch against it, and the extension tail end of said lever, extending into said braking pedal groove, is hinged to a first joint lever; a brake pedal is in sliding fit connection with said brake pedal groove; wherein the end of said first joint lever, far away from said lever, is hinged to the bottom end face of said brake pedal; a second spring fixedly arranged between the bottom end face of said lever and the bottom end wall of said brake pedal groove.

[0007] As an optimized technical proposal, the portion of said deflection shaft, extending into said pedal control cavity, is in sliding fit connection with a pressing slider, and simultaneously said deflection shaft is in rotational engagement with said pressing slider, and the bottom extending tail end of said pressing slide bar extends into said pedal control cavity and is hinged to the top end face of said pressing slider; a second cross is in rotational engagement with said first concave block, and a second joint lever is in rotational engagement with the other two ends of said second cross; a main motor is fixedly set in the right end wall of said dynamic cavity; wherein the wall between said dynamic cavity and said pedal control cavity is in rotational engagement with a square shaft sleeve extending left and right, and the left extending tail end of said square shaft sleeve extends into said pedal control cavity, and the right extending tail end of said square shaft sleeve extends into the right end wall of said dynamic cavity and is in power connection with the left end wall of said main motor, and the left end wall of said square shaft sleeve is provided with a square shaft sliding groove which is in sliding fit connection with a square shaft, and a contracting spring is fixedly arranged between the right end face of said square shaft and the right end wall of said square shaft sliding groove; wherein one end of said second joint lever, far away from said second cross, is hinged to the left tail end of said square shaft; a fourth spur gear is in rotational engagement with said square shaft sleeve in said dynamic cavity; wherein a second tire shaft extending left and right is in rotational engagement between the right end face of said dynamic cavity and the right end face of said main machine body, wherein the left extending tail end of said second tire shaft extends into said dynamic cavity and is in rotational engagement with the left end wall of said dynamic cavity; a fifth spur gear, which engages with said fourth spur

2019200168 11 Feb 2019 gear, is fixedly set on said second tire shaft in said dynamic cavity in a circumferential direction, wherein the right extending tail end of said second tire shaft extends out of said main machine body and is fixedly provided with a second tire in a circumferential direction.

[0008] The benefits of the invention are as follows: when the device of this invention begins to work, said main motor is started to successively drive said square shaft sleeve, said square shaft, said second joint lever, said second cross, said first concave block, said deflection shaft and said reversing gear to rotate. When said traveling pedal and said brake pedal are not stepped, said reversing gear idles, and said square shaft sleeve rotates to successively drive said fourth spur gear, said fifth spur gear, said second tire shaft and said second tire to rotate, and said first tire doesn't rotate while said reversing gear idles, and said first tire doesn't rotate while said second tire rotates around said first tire. When said traveling pedal is stepped, said pressing slide bar drives said pressing slider to descend, and then the portion, located in said pedal control cavity, of said deflection shaft descends, and the portion, located in reversing cavity, of said deflection shaft rises, so that said reversing gear engages with said tilting spur gears which is above said reversing gear, thereby successively driving said tilting and rotating linkage above, said first cross above, said second concave block above, said first spur gear above, said third spur gear, said second spur gear, said first tire shaft and said first tire to rotate. At this time, the rotating direction of said first tire is the same as that of said second tire, and said first tire and said second tire drive said main machine body to move forward. When said brake pedal is stepped, said brake pedal drives said lever to rotate through said first joint lever, and the portion of said lever, located in said traveling pedal groove, lifts said traveling pedal, and said pressing slide bar drives said pressing slider to rise, and the portion of said deflection shaft, located in said pedal control cavity, rises, and the portion of said deflection shaft, located in said reversing cavity, descends, so that said reversing gear engages with said tilting spur gears which is below said reversing gear, thereby successively driving said tilting and rotating linkage below, said first cross, said second concave block below, said first spur gear below, said second spur gear, said first tire shaft and said first tire to rotate. At this time, the rotating direction of said first tire is opposite to that of said second tire. The sudden short-stepping of said brake pedal may play a role in braking, while the slow

2019200168 11 Feb 2019 long-stepping of said brake pedal may make said second tire and said first tire drive said main machine body to rotate on the spot.

[0009] The device of this invention has a simple structure and is convenient to use as it uses the traveling pedal and the brake pedal to control the deflection direction of deflection shaft, thereby controlling the reversing gear to engage with which gear , and further controlling the positive and negative rotation of the first tire. When the traveling pedal and the brake pedal are not stepped, the main machine body turns around the first tire; when the traveling pedal is stepped, the tire drives the main machine body to move in a straight line; when the brake pedal is stepped, the sudden short-stepping of the brake pedal may play a role in braking, while the slow long-stepping of the brake pedal may make the second tire and the first tire drive the main machine body to rotate on the spot, which makes each process coordinated with each other without affecting their separate operation , so that the practical performance of device will be improved.

BRIEF DESCRIPTION OF THE DRAWINGS [0010] For better description, the present invention is described in detail by the following specific embodiments and drawings.

[0011] FIG. 1 is an schematic structural diagram depicting the internal structure of transmission shaft deflection-controlling device of this invention.

[0012] FIG. 2 is the partial enlarged structural diagram depicting A in FIG. 1;

[0013] FIG. 3 is the enlarged structural diagram depicting the partial structure of B in FIG. i;

[0014] FIG. 4 is a cross-sectional view of C-C in FIG. 3.

DETAILED DESCRIPTION OF THE INVENTION [0015] Referring to FIG. 1 to FIG. 4, a transmission shaft deflection-controlling device of this invention comprises a main machine body 10, a tire driving cavity 41 fixedly arranged in

2019200168 11 Feb 2019 said main machine body 10, a reversing cavity 39 fixedly set in said main machine body 10 which is on the right side of said tire driving cavity 41, a pedal control cavity 26 fixedly arranged in said main machine body 10 which is on the right side of said reversing cavity 39, a dynamic cavity 27 fixedly set in said main machine body 10 which is on the right side of said pedal control cavity 26, a first tapered groove 23 extending rightward disposed on the right end wall of said reversing cavity 39, a second tapered groove 24 extending leftward set on the left end wall of said pedal control cavity 26, wherein the right extending tail end of said first tapered groove 23 is communicated with the left extending tail end of said second tapered groove 24; a traveling pedal groove 38 set on the top end face of said main machine body 10 which is above said pedal control cavity 26, a braking pedal groove 30 set on the top end wall of said main machine body 10 which is on the right side of said traveling pedal groove 38, ball fixing grooves 48 symmetrically disposed on the upper and lower end walls of the portion where the first tapered groove 23 and the second tapered groove 24 are connected to each other, positioning balls 47 which are in rolling fit connection with said ball fixing grooves 48, wherein the portion which is between the lower and the upper positioning ball 47 is provided with a deflection shaft 50 extending left and right, and said positioning balls 47 are in rolling fit connection with said deflection shaft 50, and the left extending tail end of said deflection shaft 50 penetrates through said first tapered groove 23 and into said reversing cavity 39 and is fixedly provided with a reversing gear 40 in a circumferential direction, and the right extending tail end of said deflection shaft 50 penetrates through said second tapered groove 24 and into said pedal control cavity 26 and is fixedly provided with a first concave block 54 in a circumferential direction; annular grooves 45 up and down symmetrically disposed in the end wall of said first tapered groove 23, annular sliders 44 which are in sliding fit connection with said annular groove 45, an annular spring 46 fixedly arranged between one end of said annular sliders 44, extending into said annular groove 45, and the tail end of said annular groove 45, deflection shaft reset blocks 42 set on said deflection shaft 50 in said first tapered groove 23, wherein said deflection shaft reset blocks 42 are in rotational engagement with said deflection shaft 50, and the top end face of said deflection shaft reset blocks 42 is fixedly coupled with one end of said annular slider 44 above, extending into said first tapered groove 23, and the bottom end face of said deflection shaft reset blocks 42 is fixedly coupled

2019200168 11 Feb 2019 with one end of said annular sliders 44, extending into said first tapered groove 23; wherein the right end wall of said reversing cavity 39 on the upper and lower sides of said first tapered groove 23 is in rotational engagement with tilting shafts 22 which are symmetrical to each other and tilted, and the tail end of said tilting shaft 22, extending into said reversing cavity 39, is fixedly provided with a tilting spur gear 21 in a circumferential direction; wherein the wall between said tire driving cavity 41 and said reversing cavity 39 is in rotational engagement with tilting and rotating linkage 20 which are up and down symmetrical and tilted, and the tail end of said tilting and rotating linkages 20, extending into said reversing cavity 39, is in power connection with said tilting spur gear 21.

[0016] Helpfully, a first cross 19 is in rotational engagement with said tilting and rotating linkage 20; second concave blocks 18 are in rotational engagement with the other two ends of said first cross 19; a first rotating shaft 16 which extends leftward is fixedly disposed on the left end face of said second concave block 18; wherein the left extending tail end of said first rotating shaft 16 extends into the left end wall of said tire driving cavity 41 and is in rotational engagement with left end wall of said tire driving cavity 41; a first spur gear 17 is fixedly set on said first rotating shaft 16 in a circumferential direction; wherein the left end wall of said tire driving cavity 41 and the left end face of said main machine body 10 are in rotational engagement with a first tire shaft 14 extending left and right, and the left extending tail end of said first tire shaft 14 penetrates out of said main machine body 10 and is fixedly provided with a first tire 12 in a circumferential direction, and the right extending tail end of said first tire shaft 14 penetrates into said tire driving cavity 41 and is in rotational engagement with the left end face of said tire driving cavity 41; a second spur gear 15 is fixedly arranged on said first tire shaft 14 in said tire driving cavity 41 in a circumferential direction; wherein said second spur gear 15 engages with said first spur gear 17 which is located below said second spur gear 15; wherein a second rotating shaft 11 which is above said first tire shaft 14 is in rotational engagement between the left and right end wall of said tire driving cavity 41, and said first rotating shaft 16 is above said second rotating shaft 11; a third spur gear 13 is fixedly set on said second rotating shaft 11 in a circumferential direction; wherein said third spur gear 13 engages with said second spur gear 15 and said first spur gear 17 above.

2019200168 11 Feb 2019 [0017] Helpfully, the wall between said traveling pedal groove 38 and said pedal control cavity 26 is in sliding fit connection with a pressing slide bar 36 extending up and down, the top end face of which is fixedly provided with a traveling pedal 37; a first spring 35 is fixedly disposed between the bottom end face of said traveling pedal 37 and the bottom end face of said traveling pedal groove 38; wherein the wall between said traveling pedal groove 38 and said braking pedal groove 30 is in rotational engagement with a lever 34, two ends of which respectively extend into said traveling pedal groove 38 and said braking pedal groove 30; wherein the extension tail end of said lever 34, extending into said traveling pedal groove 38, is located below said traveling pedal 37 and touches against it, and the extension tail end of said lever 34, extending into said braking pedal groove 30, is hinged to a first joint lever 32; a brake pedal 31 is in sliding fit connection with said brake pedal groove 30; wherein the end of said first joint lever 32, far away from said lever 34, is hinged to the bottom end face of said brake pedal 31; a second spring 33 is fixedly arranged between the bottom end face of said lever 34 and the bottom end wall of said brake pedal groove 30.

[0018] Helpfully, the portion of said deflection shaft 50, extending into said pedal control cavity 26, is in sliding fit connection with a pressing slider 25, and simultaneously said deflection shaft 50 is in rotational engagement with said pressing slider 25, and bottom extending tail end of said pressing slide bar 36 extends into said pedal control cavity 26 and is hinged to the top end face of said pressing slider 25; a second cross 52 is in rotational engagement with said first concave block 54; a second joint lever 51 is in rotational engagement with the other two ends of said second cross 52; a main motor 58 is fixedly set in the right end wall of said dynamic cavity 27; wherein the wall between said dynamic cavity 27 and said pedal control cavity 26 is in rotational engagement with a square shaft sleeve 61 extending left and right, and the left extending tail end of said square shaft sleeve 61 extends into said pedal control cavity 26, and the right extending tail end of said square shaft sleeve 61 extends into the right end wall of said dynamic cavity 27 and is in power connection with the left end wall of said main motor 58, and the left end wall of said square shaft sleeve 61 is provided with a square shaft sliding groove 60 which is in sliding fit connection with a square shaft 63, and a contracting spring 59 is fixedly arranged between the right end face of said

2019200168 11 Feb 2019 square shaft 63 and the right end wall of said square shaft sliding groove 60; wherein one end of said second joint lever 51, far away from said second cross 52, is hinged to the left tail end of said square shaft 63; a fourth spur gear 62 is in rotational engagement with said square shaft sleeve 61 in said dynamic cavity 27; wherein a second tire shaft 28 extending left and right is in rotational engagement between the right end face of said dynamic cavity 27 and the right end face of said main machine body 10 ; wherein the left extending tail end of said second tire shaft 28 extends into said dynamic cavity 27 and is in rotational engagement with the left end wall of said dynamic cavity 27; a fifth spur gear 55, which engages with said fourth spur gear 62, fixedly set on said second tire shaft 28 in said dynamic cavity 27 in a circumferential direction; wherein the right extending tail end of said second tire shaft 28 extends out of said main machine body 10 and is fixedly provided with a second tire 29 in a circumferential direction.

[0019] When the device of this invention is in the initial state, the top end face of said traveling pedal 37 is aligned with the top end face of said main machine body 10, and the top end face of said brake pedal 31 is aligned with the top end face of said main machine body 10, and said lever 34 is in a horizontal position and said reversing gear 40 is located at a position between two said tilting spur gears 21.

[0020] When the device of this invention begins to work, said main motor 58 is started to successively drive said square shaft sleeve 61, said square shaft 63, said second joint lever 51, said second cross 52, said first concave block 54, said deflection shaft 50 and said reversing gear 40 to rotate. When said traveling pedal 37 and said brake pedal 31 are not stepped, said reversing gear 40 idles, and said square shaft sleeve 61 rotates to successively drive said fourth spur gear 62, said fifth spur gear 55, said second tire shaft 28 and said second tire 29 to rotate. When said first tire 12 doesn't rotate while said reversing gear 40 idles, and said first tire 12 doesn't rotate while said second tire 29 rotates around said first tire 12. When said traveling pedal 37 is stepped, said pressing slide bar 36 drives said pressing slider 25 to descend, and then the portion, located in said pedal control cavity 26, of said deflection shaft 50 descends, and the portion, located in said reversing cavity 39, of said deflection shaft 50

2019200168 11 Feb 2019 rises, so that said reversing gear 40 engages with said tilting spur gears 21 which are above said reversing gear 40, thereby successively driving said tilting and rotating linkage 20 above, said first cross 19 above, said second concave block 18 above, said first spur gear 17 above, said third spur gear 13, said second spur gear 15, said first tire shaft 14 and said first tire 12 to rotate. At this time, the rotating direction of said first tire 12 is the same as that of said second tire 29, and said first tire 12 and said second tire 29 drive said main machine body 10 to move forward. When said brake pedal 31 is stepped, said brake pedal 31 drives said lever 34 to rotate through said first joint lever 32, and the portion of said lever 34, located in said traveling pedal groove 38, lifts said traveling pedal 37, and said pressing slide bar 36 drives said pressing slider 25 to rise, and then the portion of said deflection shaft 50, located in said pedal control cavity 26, rises, and then the portion of said deflection shaft 50, located in said reversing cavity 39, descends, so that said reversing gear 40 engages with said tilting spur gears 21 which is below said reversing gear 40, thereby successively driving said tilting and rotating linkage 20 below, said first cross 19, said second concave block 18 below, said first spur gear 17 below, said second spur gear 15, said first tire shaft 14 and said first tire 12 to rotate, and at this time, the rotating direction of said first tire 12 is opposite to that of said second tire 29. The sudden short-stepping of said brake pedal 31 may play a role in braking while the slow long-stepping of said brake pedal 31 may make said second tire 29 and said first tire 12 drive said main machine body 10 to rotate on the spot.

[0021] The benefits of the invention are as follows: when the device of this invention begins to work, said main motor is started to successively drive said square shaft sleeve, said square shaft, said second joint lever, said second cross, said first concave block, said deflection shaft and said reversing gear to rotate. When said traveling pedal and said brake pedal are not stepped, said reversing gear idles, and said square shaft sleeve rotates to successively drive said fourth spur gear, said fifth spur gear, said second tire shaft and said second tire to rotate, and said first tire doesn't rotate while said reversing gear idles, and said first tire doesn't rotate while said second tire rotates around said first tire. When said traveling pedal is stepped, said pressing slide bar drives said pressing slider to descend, and then the portion, located in said pedal control cavity, of said deflection shaft descends, and then the portion, located in

2019200168 11 Feb 2019 reversing cavity, of said deflection shaft rises, so that said reversing gear engages with said tilting spur gears which are above said reversing gear, thereby successively driving said tilting and rotating linkage above, said first cross above, said second concave block above, said first spur gear above, said third spur gear, said second spur gear, said first tire shaft and said first tire to rotate. At this time, the rotating direction of said first tire is the same as that of said second tire, and said first tire and said second tire drive said main machine body to move forward. When said brake pedal is stepped, said brake pedal drives said lever to rotate through said first joint lever, and then the portion of said lever, located in said traveling pedal groove, lifts said traveling pedal, and said pressing slide bar drives said pressing slider to rise, and then the portion of said deflection shaft, located in said pedal control cavity, rises, and the portion of said deflection shaft, located in said reversing cavity, descends , so that said reversing gear engages with said tilting spur gears which is below said reversing gear, thereby successively driving said tilting and rotating linkage below, said first cross, said second concave block below, said first spur gear below, said second spur gear, said first tire shaft and said first tire to rotate. At this time, the rotating direction of said first tire is opposite to that of said second tire. The sudden short-stepping of said brake pedal may play a role in braking while the slow long-stepping of said brake pedal may make said second tire and said first tire drive said main machine body to rotate on the spot.

[0022] The device of this invention has a simple structure and is convenient to use as it uses the traveling pedal and the brake pedal to control the deflecting direction of deflection shaft, thereby controlling the reversing gear to engage with which gear , and further controlling the positive and negative rotation of the first tire. When the traveling pedal and the brake pedal are not stepped, the main machine body turns around the first tire; when the traveling pedal is stepped, the tire drives the main machine body to move in a straight line; when the brake pedal is stepped, the sudden short-stepping of the brake pedal may play a role in braking, while the slow long-stepping of the brake pedal may make the main machine body to rotate on the spot, which makes each process coordinated with each other without affecting their separate operation, so that the practical performance of device will be improved.

2019200168 11 Feb 2019 [0023] The above is only the specific embodiment of the invention, but the scope of the invention is not limited thereto, and any changes or substitutions that are not thought of by the creative work should fall into the claimed protection extent of this invention. Therefore, the claimed protection extent of the invention shall be determined with reference to the appended claims.

Claims (4)

1. A transmission shaft deflection-controlling device of this invention, comprising: a main machine body, wherein a tire driving cavity is fixedly arranged in said main machine body; a reversing cavity fixedly set in said main machine body which is on the right side of said tire driving cavity, a pedal control cavity fixedly arranged in said main machine body which is on the right side of said reversing cavity, a dynamic cavity fixedly set in said main machine body which is on the right side of said pedal control cavity, a first tapered groove extending rightward disposed on the right end wall of said reversing cavity, a second tapered groove extending leftward set on the left end wall of said pedal control cavity, wherein the right extending tail end of said first tapered groove is communicated with the left extending tail end of said second tapered groove;

a traveling pedal groove set on the top end face of said main machine body which is above said pedal control cavity, a braking pedal groove set on the top end wall of said main machine body which is on the right side of said traveling pedal groove, ball fixing grooves symmetrically disposed on the upper and lower end walls of the portion where the first tapered groove and the second tapered groove are connected to each other, positioning balls which are in rolling fit connection with said ball fixing grooves, wherein the portion which is between two said positioning balls is provided with a deflection shaft extending left and right, and said positioning balls are in rolling fit connection with said deflection shaft, and the left extending tail end of said deflection shaft penetrates through said first tapered groove and into said reversing cavity and is fixedly provided with a reversing gear in a circumferential direction;

2019200168 11 Feb 2019 wherein the right extending tail end of said deflection shaft penetrates through said second tapered groove and into said pedal control cavity and is fixedly provided with a first concave block in a circumferential direction;

annular grooves up and down symmetrically disposed in the end wall of said first tapered groove, annular sliders which are in sliding fit connection with said annular groove, an annular spring fixedly arranged between one end of said annular sliders, extending into said annular groove, and the tail end of said annular groove;

deflection shaft reset blocks set on said deflection shaft in said first tapered groove, wherein said deflection shaft reset blocks are in rotational engagement with said deflection shaft, and the top end face of said deflection shaft reset blocks is fixedly coupled with one end of said annular slider above, extending into said first tapered groove, and the bottom end face of said deflection shaft reset blocks is fixedly coupled with one end of said annular sliders, extending into said first tapered groove;

wherein the right end wall of said reversing cavity in the upper and lower sides of said first tapered groove is in rotational engagement with tilting shafts which are symmetrical and tilted, and the tail end of said tilting shaft, extending said reversing cavity, is fixedly provided with a tilting spur gear in a circumferential direction;

wherein the wall between said tire driving cavity and said reversing cavity is in rotational engagement with tilting and rotating linkages which are up and down symmetrical and tilted, and the tail end of said tilting and rotating linkages, extending into said reversing cavity, is in power connection with said tilting spur gear.

2. The transmission shaft deflection-controlling device according to claim 1, wherein a first cross is in rotational engagement with said tilting and rotating linkages;

second concave blocks are in rotational engagement with the other two ends of said first cross;

a first rotating shaft which extends leftward is fixedly disposed on the left end face of said second concave block;

wherein the left extending tail end of said first rotating shaft extends into the left end

2019200168 11 Feb 2019 wall of said tire driving cavity and is in rotational engagement with left end wall of said tire driving cavity;

a first spur gear is fixedly set on said first rotating shaft in a circumferential direction;

wherein a first tire shaft extending left and right is in rotational engagement between the left end wall of said tire driving cavity and the left end face of said main machine body, and the left extending tail end of said first tire shaft penetrates out of said main machine body and is fixedly provided with a first tire in a circumferential direction, and the right extending tail end of said first tire shaft penetrates into said tire driving cavity and is in rotational engagement with the left end face of said tire driving cavity;

a second spur gear is fixedly arranged on said first tire shaft in said tire driving cavity in a circumferential direction;

wherein said second spur gear engages with said first spur gear which is located below said second spur gear;

wherein a second rotating shaft which is above said first tire shaft is in rotational engagement between the left and right end wall of said tire driving cavity, and said first rotating shaft is above said second rotating shaft;

a third spur gear is fixedly set on said second rotating shaft in a circumferential direction;

wherein said third spur gear engages with said second spur gear and said first spur gear above.

3. The transmission shaft deflection-controlling device according to claim 1, wherein the wall between said traveling pedal groove and said pedal control cavity is in sliding fit connection with a pressing slide bar extending up and down, the top end face of which is fixedly provided with a traveling pedal;

a first spring is fixedly disposed between the bottom end face of said traveling pedal and the bottom end wall of said traveling pedal groove;

wherein the wall between said traveling pedal groove and said braking pedal groove is in rotational engagement with a lever, two ends of which extend respectively into said

2019200168 11 Feb 2019 traveling pedal groove and said braking pedal groove;

wherein the extension tail end of said lever, extending into said traveling pedal groove, is located below said traveling pedal and may touch against it, and the extension tail end of said lever, extending into said braking pedal groove, is hinged to a first joint lever;

a brake pedal is in sliding fit connection with said brake pedal groove; wherein the end of said first joint lever, far away from said lever, is hinged to the bottom end face of said brake pedal;

a second spring is fixedly arranged between the bottom end face of said lever and the bottom end wall of said brake pedal groove.

4. The transmission shaft deflection-controlling device according to claim 1, wherein the portion of said deflection shaft, extending into said pedal control cavity, is in sliding fit connection with a pressing slider, and simultaneously said deflection shaft is in rotational engagement with said pressing slider, and the bottom extending tail end of said pressing slide bar extends into said pedal control cavity and is hinged to the top end face of said pressing slider;

a second cross is in rotational engagement with said first concave block; a second joint lever is in rotational engagement with the other two ends of said second cross;

a main motor is fixedly set in the right end wall of said dynamic cavity; wherein the wall between said dynamic cavity and said pedal control cavity is in rotational engagement with a square shaft sleeve extending left and right, and the left extending tail end of said square shaft sleeve extends into said pedal control cavity, and the right extending tail end of said square shaft sleeve extends into the right end wall of said dynamic cavity and is in power connection with the left end wall of said main motor, and the left end wall of said square shaft sleeve is provided with a square shaft sliding groove which is in sliding fit connection with a square shaft, and a contracting spring is fixedly arranged between the right end face of said square shaft and the right end wall of said square shaft sliding groove;

wherein one end of said second joint lever, far away from said second cross, is

2019200168 11 Feb 2019 hinged to the left tail end of said square shaft;

a fourth spur gear is in rotational engagement with said square shaft sleeve in said dynamic cavity;

wherein a second tire shaft extending left and right is in rotational engagement between the right end face of said dynamic cavity and the right end face of said main machine body ;

wherein the left extending tail end of said second tire shaft extends into said dynamic cavity and is in rotational engagement with the left end wall of said dynamic cavity;

a fifth spur gear, which engages with said fourth spur gear, is fixedly set on said second tire shaft in said dynamic cavity in a circumferential direction;

wherein the right extending tail end of said second tire shaft extends out of said main machine body and is fixedly provided with a second tire in a circumferential direction.