WO2005044404A1

WO2005044404A1 - Horseless device

Info

Publication number: WO2005044404A1
Application number: PCT/CN2004/001276
Authority: WO
Inventors: Qun Sun
Original assignee: Lin, Suqin
Priority date: 2003-11-10
Filing date: 2004-11-09
Publication date: 2005-05-19

Abstract

The present invention discloses a kind of horseless device. The device has a frame system, which includes an upperframe and a lower-frame. A hydraulic pressure conversion unit, which secured on the lower frame, can convert body's weight into hydraulic pressure. The support of the conversion unit connects with the upper-frame, and the pipe of hydraulic pressure outlet connects with a shift running unit, which secured on the upper-frame. The power outlet component of the shift running unit transmits power to a power wheel, which connects with the lower-frame. The upperframe and the hydraulic pressure conversion unit of the device can also adopt multi-group structure. As a result, two people or more can use the device together. The device has many characteristics, such as a reasonable structure, downwards movement placidity, a high efficiency of power conversion, controllable running, switchable power. The device can assemble with a sole or a skateboard or a skate scooter or a board of bicycle which has two wheels or three wheels or four wheels, and assemble with a brake of wheel and a lock device. As a result, it forms a horseless facility which can instead of walk. The facility is comfortable, placidity, high efficiency and in favor of environmental protection.

Description

Self-powered driving device

The invention relates to a self-powered driving device, in particular to a roller skate, a skateboard, a scooter, a three-wheeled or four-wheeled vehicle that converts human body gravity or pedaling force into a turning force of a power wheel through a conversion mechanism such as hydraulic pressure or gear. Powered drive.

Background technique

At present, commercially available roller skates, skateboards and scooters are usually constructed by directly installing shoe wheels on the soles or pedals, and the rotation of the power wheel is achieved by the forward thrust conversion of the human pedal, which is relatively laborious and inconvenient. An entertaining exercise tool. Chinese Patent No. 86104869 discloses a gravity conversion-driven roller skate, in which the human body's gravity is converted into a drawbone I force by directly adopting a gear-lever mechanical transmission. For this reason, the power driving device has to be composed of relatively complex components. The sole surface can also only be moved down non-horizontally, which causes the power device to have a large impact when it touches the ground, short action time, unstable human body, and excessive useless branch force, which affects the effective conversion efficiency of the human body's gravity; This type of power unit is also all mechanical transmission, and its force adjustment function and unloading function are also not ideal.

Summary of the invention

Aiming at the shortage of power driving parts of the existing roller skates, skateboards, and scooters, the present invention provides a self-powered shoe, skateboard, or scooter, etc., which can convert human gravity or pedaling force smoothly and efficiently into a driving force of a power wheel The driving device is supplemented with a power wheel brake, a locking device, and then combined with a sole or a pedal of a skateboard, a scooter, etc., so as to be assembled into a comfortable, stable, safe, efficient, and environmentally friendly travel tool.

The technical solution adopted by the present invention to solve its technical problems is that the present invention has a bracket system composed of an upper bracket (1) and a lower bracket (2) that can be combined with a pedal or a sole, and a hydraulic pressure is fixed to the lower bracket. The force conversion mechanism and the variable speed rotation mechanism. The pressure receiving part of the hydraulic pressure conversion mechanism is connected to the upper bracket. The hydraulic output oil pipe (8) is connected to the variable speed rotation mechanism. The power output member (24) of the variable speed rotation mechanism is connected to the lower bracket. The power wheel (48) is drivingly connected. When the upper bracket is combined with the sole of the pedal or shoe body of a skateboard, scooter, two-wheel, three-wheel or four-wheeler and used, the upper bracket that receives human gravity or pedal force directly transmits its vertical downward pressure to The hydraulic pressure conversion mechanism converts into hydraulic pressure smoothly through the hydraulic system.

1

Confirm this The pressure is converted into a rotational force by the variable-speed rotation mechanism, and the rotating power output member (24) drives the power wheel (48) to rotate.

The above upper brackets are one to eight, and the number of groups of hydraulic pressure conversion mechanisms corresponding to the number of upper brackets corresponds to one to eight groups. Each group of hydraulic pressure conversion mechanisms consists of one to twenty oils fixed to the lower bracket. The cylinder group composed of the pressure cylinder (3) (see Figure 1), the upper end of the movable column (4) of the hydraulic cylinder is fixed to the upper bracket (forming the pressure receiving part of the conversion mechanism), and the inner cavity of the hydraulic cylinder is separately connected with the input The output oil pipes (7, 8) are connected. When the human body stands and the upper bracket receives the human body's gravity vertically downward, the hydraulic cylinder movable column (4) directly bears its pressure and moves vertically downward, so that the pedal or the upper bracket can be integrated into (or integrated with) the upper bracket. The horizontal movement of the shoe body downwards and the vertically moving column of the hydraulic cylinder presses the liquid in the cylinder out of the cylinder and discharges it into the input oil pipe (8). When the upper bracket is one, the device of the present invention can be used on self-roller skates, skateboards or scooters; when the upper bracket is divided into two or more independent ones, the device of the present invention can be generally used for self-skating, scooters, bicycles, One or two to four people on a three- or four-wheeler.

Each of the above-mentioned hydraulic pressure conversion mechanisms may also be composed of two hydraulic cylinders (3) and a hydraulic pack (11) fixed on the lower bracket (see FIG. 5). The upper end of the hydraulic pack is the same as the upper end of the movable column of the hydraulic cylinder. Connect to the upper bracket. After receiving the gravity of the human body, the movable cylinder of the hydraulic cylinder and the hydraulic pack move vertically downwards, and the liquid in the cylinder and the hydraulic pack is pressed into the output oil pipe (8), so that the human body's gravity is smoothly converted into hydraulic pressure.

The above two hydraulic cylinders can be replaced by corresponding two guide posts, that is, the hydraulic pressure conversion mechanism is composed of two guide posts and a hydraulic pack. The upper end of the guide post is also fixed to the upper bracket, and its lower end protrudes into the corresponding guide rail on the lower bracket.

Each of the above groups of hydraulic pressure conversion mechanisms can also be implemented with a third set of solutions, that is, it is composed of two sets of racks (14) and hydraulic pumps (15) (see Figure 6), and the upper end of the rack (14) is fixed Connected to the upper bracket (forming the pressure receiving part of the conversion mechanism), the hydraulic pump is fixed to the lower bracket, the rack is installed in the guide rail (16) on the lower bracket and meshes with the gear (17) connected to the lower bracket, and the gear ( 17) The unidirectional rotating wheel (18) connected with it is drivingly connected with the hydraulic pump shaft (19), and the hydraulic pump communicates with the input and output oil pipes (7, 8), respectively. When the rack (14) moves vertically downwards under the weight of the human body, it directly drives the gear (14) to rotate, and then drives the hydraulic pump to rotate, and presses the liquid in the pump into the output oil pipe (8).

The variable-speed rotation mechanism of the present invention comprises a hydraulic cylinder (20) fixed on a lower bracket, The gear bar (21), the return spring (22) on the cylinder movable column, the rotating gear (23), and the power output member (24) respectively fixed to the lower bracket are formed (see FIG. 8), wherein the hydraulic cylinder movable column and The return spring is placed in the guide rail (25) on the lower bracket, and the rotating gear (23) meshes with the gear bar (21). When the diameter of the power wheel (48) is large (such as used on a skateboard, scooter, two-wheel, three-wheel, or four-wheel vehicle), the one-way gear structure can be used for turning the gear (23), and the one-way gear The unidirectional rotating inner ring directly forms the power output component part, and the rotary gear (23) is coaxially connected with the power wheel (48) (such as the power wheel is directly fixed to the unidirectional rotating inner ring, or the rotary gear has a rotating shaft When the power wheel is fixed on the rotating shaft). When the power wheel (48) has a small diameter (for example, used on roller skates, skateboards or scooters), in order to increase the number of revolutions and speed of the power wheel, the power output member (24) has a separate driving gear structure, and the driving gear (24) and A transmission mechanism (see Fig. 10) is used for transmission connection between the rotating gears (23), and the driving gear (24) is connected to the coaxial transmission of the power wheel (48) or a different shaft transmission connection. The hydraulic pressure in the output oil pipe from the hydraulic pressure conversion mechanism moves through the movable column of the hydraulic cylinder (20) driven by the oil circuit, which drives the gear bar to directly drive the rotating gear (23) that is engaged with it, and then: ① when the gear (23) is turned When a one-way gear is used, the rotating gear can directly drive the power wheel to rotate; ② When the power output member (24) is a separate driving gear, the rotating gear (23) engages common transmission mechanisms such as a gear engagement mechanism, gear and chain transmission mechanism through gears Then, the driving gear (24) is driven to rotate, so as to change the hydraulic pressure into a linear motion force, and then into a circular motion rotation force, and achieve the purpose of variable speed; at the same time, the rotating driving gear (24) directly drives the coaxial connection with it The power wheel rotates or drives the power wheel to rotate through transmission mechanisms such as gear meshing, gear and chain combination.

The above-mentioned variable-speed rotation mechanism may also be a hydraulic cylinder (20) and a pulley unit fixed to the lower bracket.

(30), a runner (31), a one-way gear (32), a sliding block (34), a return spring (35), a return guide post (36) (see FIG. 11), and a steel cable on the pulley group ( 37) with the runner on one end

(31) After changing the pulling direction, it is fixed in the outer ring groove of the one-way gear (32), the movable end of the pulley group is integrated with the sliding block and placed in the sliding track (38) on the lower bracket, and the hydraulic cylinder movable column And the return guide are respectively connected with the sliding block. The one-way rotating part of the one-way gear (32) directly constitutes a power output member (24), and the one-way gear (32) is coaxially connected with the power wheel (48) or is connected with a different shaft. The hydraulic pressure in the output pipe from the hydraulic pressure conversion mechanism enters the hydraulic cylinder through the oil circuit

In (20), the sliding block connected with the movable column is driven to move linearly, and then the pulley block is moved to pull the steel cable to rotate the one-way gear (32) to achieve the purpose of speed change; The unidirectional rotating part or the rotating shaft of the gear (32) drives the power wheel rotating around the same axis or drives the power wheel through a mechanical transmission mechanism (see FIG. 14).

The above-mentioned variable-speed rotating mechanism may also be a hydraulic pump (42) and a fuel tank fixed to the lower bracket.

(43) structure (see Figure 13), the input port (44) of the hydraulic pump is in communication with the output oil pipe (8) of the hydraulic pressure conversion mechanism, the output port (45) is in communication with the inlet of the oil tank (43), and the output of the oil tank is connected to the hydraulic pressure The input oil pipe of the force conversion mechanism is connected (7), and a one-way valve is provided on the input and output oil pipes of the hydraulic pressure conversion mechanism to ensure the unidirectional flow of the liquid in the hydraulic system. At the same time, the rotating shaft or housing of the hydraulic pump directly constitutes the power output member (24), and the hydraulic pump (42) and the power wheel

(48) Coaxial transmission connection (that is, the power wheel is fixed on the rotating casing of the hydraulic pump, or the power wheel is fixed on the rotating shaft of the hydraulic pump), or it is connected to the power wheel with different shaft transmission (such as the hydraulic pump rotating shaft is engaged by gears) Or transmission mechanism such as gear and chain combination is connected with power wheel). The hydraulic pressure output by the hydraulic pressure conversion mechanism directly drives the blades of the hydraulic pump to rotate through the oil circuit, thereby urging the rotating shaft of the hydraulic pump or the rotating casing (ie, the power output member) to rotate, thereby driving the power wheel to rotate.

In the present invention, the number of the upper bracket (1) and the number of the hydraulic pressure conversion mechanisms can also correspond to an even number of 2, 4, 6, or 8. The variable-speed rotation mechanism is a hydraulic pump (42) fixed to the lower bracket (2). The input port (44) of the hydraulic pump is in communication with the output oil pipe (8), the output port (45) is in communication with the input oil pipe (7) of the hydraulic pressure conversion mechanism, and a check valve is provided on the input and output oil pipes.

(9, 10) (see Figure 21). At the same time, the rotating shaft or the rotating casing of the hydraulic pump constitutes a power output member (24), and the hydraulic pump (42) is coaxially connected with the power wheel (48) or is connected with a different shaft. When an upper bracket is translated downward due to the human body's gravity or pedaling, the corresponding hydraulic pressure conversion mechanism presses its hydraulic pressure into the hydraulic pump through the output oil pipe, and drives the hydraulic pump to rotate the shaft or rotate the casing, that is, the power output shaft ( 24) While rotating, the hydraulic pressure enters another corresponding hydraulic pressure conversion mechanism through the input oil pipe (7), and causes the corresponding upper bracket to move upward, and vice versa. By alternately stepping on the bracket in this way, the hydraulic pump drives the power wheel to rotate forward.

In the invention, the output oil pipe (8) or the input oil pipe (7) of the hydraulic pressure conversion mechanism is provided with a speed regulating mechanism (60) capable of adjusting the oil flow rate and a cutting power mechanism capable of cutting the oil circuit.

(61), thereby giving the device a speed regulation function and a force relief function.

A return spring (74) is installed between the upper bracket (1) and the lower bracket (2). The setting of the return spring mechanism (or a return mechanism that plays a similar role) helps to improve the speed of the lower movement and return of the lower bracket and its attachments after the roller skates leave the ground; After waiting for the pedal, move the upper bracket back into position.

Compared with the power part of the prior art roller skates, skateboards, scooters, etc., the present invention has the following positive effects: ① After bearing the gravity of the human body, the device moves down horizontally as a whole, and uses hydraulic pressure to switch, so the feet After stepping on the device, the downward movement is stable, and the action time is longer, and it will not rush out to make the human body unstable; ② When stepping down on the device, the switching force is vertical downward, and there is little force in the branch direction The force is effectively received, so the conversion efficiency of the force is high; ③ The downward movement distance of the device is small. When it is used as a power device for roller skates, it is not necessary to lift the foot too high, and a single action makes the device The moving distance is long and the speed is relatively stable; ④ The device is widely used, and can be used on roller skates, skateboards, scooters, two, three or four-wheelers; ⑤ The device is used on skateboards, scooters, two wheels, On three-wheeled or four-wheeled vehicles, more than two people can be used simultaneously (at this time, more than 3 pedals and upper brackets are used, and more than 3 groups of hydraulic pressure conversion mechanisms); ⑥ This device can be set The speed regulating mechanism can control the driving speed, and can also design the cut-off power mechanism, and it is achieved by controlling the oil circuit, so the control action is simple and reliable; ⑦ This device has a wide range of materials, which can use metal materials, non-metal materials and Plastic materials such as fluororesin; ⑧ The device has a simple and reasonable structure. It is equipped with power wheel brakes and locking devices, which can be assembled together with the pedals of skateboards, scooters, or the body of roller skates to form a comfortable, stable, safe, efficient and Environmentally friendly self-propelled or recreational sports tools (including self-skating, self-scooting, self-shoeing, self-wheeling, three-wheeling, or four-wheeling, etc.). When the device is used on an electric bicycle, three-wheeled or four-wheeled vehicle, as the power is consumed, the device can also be used to run the vehicle forward.

BRIEF DESCRIPTION OF THE DRAWINGS

The device of the present invention is further described below with reference to the accompanying drawings and embodiments of the description.

FIG. 1 is a schematic structural diagram of a hydraulic pressure conversion mechanism composed of a hydraulic cylinder group;

FIG. 2 is a schematic sectional structural view of an upper bracket;

FIG. 3 is a schematic sectional structural view of a lower bracket;

Fig. 4 is a schematic structural diagram of a hydraulic pressure conversion mechanism composed of twenty hydraulic cylinders; Fig. 5 is a schematic structural diagram of a hydraulic pressure conversion mechanism composed of a hydraulic cylinder and a hydraulic pack; Fig. 6 is a hydraulic pressure conversion composed of a rack and a hydraulic pump Schematic diagram of the mechanism structure; Figure 7 is a schematic diagram of the structure of the guide rail;

8 is a schematic structural diagram of a variable-speed rotation mechanism composed of a hydraulic cylinder, a rack and the like; FIG. 9 is a schematic diagram of a guide rail structure; 10 is a schematic diagram of a variable speed transmission structure composed of large and small wheels;

FIG. 11 is a structural schematic diagram of a variable-speed rotating mechanism composed of a hydraulic cylinder and a pulley block, etc .; FIG. 12 is a structural schematic diagram of an outer ring wire groove of a one-way gear;

13 is a schematic structural diagram of a variable speed rotation mechanism composed of a hydraulic pump and a fuel tank;

FIG. 14 is a schematic diagram of a transmission relationship between a power output member and a power shoe wheel;

FIG. 15 is a schematic structural view of A—-A in FIG. 14; FIG.

FIG. 16 is a schematic diagram of a side row wheel self-made shoe composed of the device; FIG.

FIG. 17 is a schematic diagram of an in-line wheel self-shoe composed of the device; FIG.

FIG. 18 is a schematic diagram of a self-skating board composed of the device; FIG.

FIG. 19 is a schematic diagram of the structure of the device for a self-skating, scooter, two-wheel, three-wheel or four-wheel vehicle;

FIG. 20 is another schematic structural diagram of the device for a self-skating, scooter, two-wheel, three-wheel or four-wheel vehicle;

21 is another schematic structural diagram of the device used for self-skating, scooter, two-wheel, three-wheel or four-wheel vehicle;

FIG. 22 is a schematic diagram of the appearance and structure of a self-propelled scooter composed of the devices of FIGS. 19-21 (the fuel tank is omitted);

FIG. 23 is a schematic diagram of the outline structure of a self-propelled tricycle consisting of the devices of FIGS. 19-21 (omitting the fuel tank);

Figure 24 is a schematic diagram of the oil circuit control in Figures 22-23;

In the figure: 1. Upper bracket; 2. Lower bracket; 3. Hydraulic cylinder; 4. Movable column; 5. Nut; 6. Nut; 7. Input oil pipe; 8. Output oil pipe; 9. 10. Check valve; 11 Hydraulic package; 12, 13. Fixed bead; 14. Rack; 15. Hydraulic pump; 16. Guide rail; 17. Gear; 18. Unidirectional rotating wheel; 19. Hydraulic pump shaft; 20. Hydraulic cylinder; 21. Gear 22. Return springs; 23. Rotating gears; 24. Power output members; 25. Guide rails; 26. Screws; 27. Unidirectional rotating gears; 28. Chains; 29. Drive gear shafts; Runner; 32. Unidirectional gear; 33. Wire trough; 34. Slide block; 35. Return spring; 36. Return guide post; 37. Steel cable; 38. Slide rail; 39. Fixing bracket; 40. Screw 41. transmission gear; 42. hydraulic pump; 43. fuel tank; 44. input port; 45. output port; 46. fuel tank outlet; 47. wheel bracket; 48 · power wheel; 49. power wheel shaft; 50. power wheel gear 51. Chain 52. Bracket 53. One-way bearing 54. Bearing Frame; 55. bearing; 56. screw; 57, 58. gasket; 59. casing; 60. speed regulating mechanism; 61. cut off the power mechanism; 62. shoe body; 63. brake frame; 64. wheel; 65. Brake lever; 66. brake cable; 67. brake bracket; 68. brake pads; 69. disc; 70. force arm; 71. lever; 72. lock lever; 73. press column; 74. return spring; 75 Skateboard body; 76. Oil circuit switching valve; 77. Drain pipe; 78. Scooter frame; 79. Brake handlebar; 80. Bearing; 81. Oil circuit brake control valve; 82. Front brake member; 83. Oil circuit control valve rope; 84. Tricycle frame.

detailed description

The self-powered driving device of the present invention is composed of a bracket system composed of an upper bracket 1 and a lower bracket 2 which can be combined with a pedal or a sole, a hydraulic pressure conversion mechanism fixed to the lower bracket 2 and a variable speed rotation mechanism. The power output member 24 is drivingly connected to a power wheel 48 connected to the lower bracket 2.

The upper bracket of the device can be one to eight (the corresponding pedals are one to eight). Under each upper bracket 1, there is a group of hydraulic pressure conversion mechanisms corresponding to each group of hydraulic pressure conversion mechanisms. In the structure of FIG. 1, the upper bracket 1 may adopt a concave beam structure (see FIG. 2), and the lower bracket 2 may adopt a square beam structure (see FIG. 3). The hydraulic pressure conversion mechanism is composed of a cylinder group composed of four hydraulic cylinders 3 ( A cylinder group consisting of twenty hydraulic cylinders can also be used, as shown in Figure 4). The movable column 4 of the hydraulic cylinder is fixed to the upper bracket 1 through a lock nut 5, and the hydraulic cylinder 3 is fixed to the lower bracket 2 through a lock nut 6. The inner cavity of the hydraulic cylinder is in communication with the same input oil pipe 7 and output oil pipe 8 respectively, and one-way valves 9 and 10 may be provided on the input oil pipe 7 and the output oil pipe 8, respectively. When the force is downward, the movable cylinder of the hydraulic cylinder moves downwards to push the liquid out of the cylinder. The design in the figure has a small distance for vertical movement, which makes it difficult to swing the hydraulic cylinder when it moves up and down, and the contact area is large when it is moved. Wear and tear, and the groove on the movable column and the locking screw lock the movable range within the hydraulic stroke, and the movement of the movable column will not leave the hydraulic cylinder barrel. Hydraulic cylinders can also be designed in the manner of ordinary large pistons and small movable columns; the number of hydraulic cylinder groups can be designed to consist of one to twenty hydraulic cylinders. When composed of one hydraulic cylinder, the movable column should be enlarged 4 the contact area with the upper bracket 1; when it is composed of multiple hydraulic cylinders, a guide post can be used to replace some of the hydraulic cylinders according to the situation. The upper end of the guide post is also fixed to the upper support, and the lower end of the guide post extends into the corresponding guide rail provided on the lower support. When one of the hydraulic cylinders in the hydraulic cylinder group is used after cutting off the oil circuit, it can actually replace the guide post. It is also worth mentioning that each hydraulic cylinder can be independently set with corresponding input and output oil pipes, and an oil circuit switching valve 76 (see FIG. 20) is provided on the oil circuit of the output oil pipe of some hydraulic cylinders to control Whether the hydraulic pressure is supplied to the oil pump or the fuel tank, thereby controlling the speed of the exercise and the frequency of the action. Each of the above-mentioned hydraulic pressure conversion mechanisms can also be composed of two hydraulic cylinders 3 and a hydraulic pack 11 (see FIG. 5). The upper end of the hydraulic pack is fixed to the upper bracket 1 by a fixed bead 12, and the lower end of the hydraulic pack 11 is fixed. The bead 13 is fixed on the lower bracket 2. The hydraulic cylinder 3 and the hydraulic pack 11 are in communication with the input oil pipe 7 and the output oil pipe 8. One-way valves 9, 10 may be provided on the input and output oil pipes. In this mechanism, two hydraulic cylinders can be replaced with two guide posts, and the hydraulic pressure is generated entirely by the hydraulic pack 11 at this time.

Each group of hydraulic pressure conversion mechanisms of the device can also adopt the structure of FIG. 6, that is, it is composed of two sets of racks 14 and a hydraulic pump 15. The upper end of the rack 14 is fixed to the upper bracket 1, and the hydraulic pump 15 is fixed to the lower bracket. 2, the rack is installed in the guide rail 16 (see Figure 7) on the lower bracket and meshes with the gear 17 connected to the lower bracket. The gear 17 is coaxially connected with the unidirectional turning wheel 18, so the gear 17 drives the unidirectional rotation. The wheel 18, in turn, drives the hydraulic pump rotating shaft 19 to rotate, and presses the liquid in the hydraulic pump 15 into the output oil pipe 8. The input oil pipe 7 and the output oil pipe 8 may also be provided with check valves 9, 10. Since the one-way turning wheel is one-way turning, the returning resistance when it is lifted upward is small and the speed is fast, and it can be used when it is required for fast action.

The variable-speed rotation mechanism of this device can adopt the structure of FIG. 8, which comprises a hydraulic cylinder 20, a rack 21, a return spring 22 mounted on a movable bolt of the hydraulic cylinder, and a rotating gear 23 and a power output member 24 respectively fixed on the lower bracket 2. The hydraulic cylinder movable column and the return spring are placed in the guide rail 25 (see FIG. 9) on the lower bracket, the guide rail 25 is fixed to the lower bracket 2 by screws 26, and the rotating gear (23) is engaged with the gear bar (21). . When the power wheel is large, the rotating gear (23) adopts a one-way gear structure. The one-way rotating inner ring or shaft of the one-way gear is the power output member 24. The power wheel 48 can be directly fixed in the one-way gear rotation. The ring can also be fixed to the rotating shaft of the one-way gear (when the one-way gear shaft is the rotating shaft) (see Figure 18). When the power wheel is small, the rotation gear 23 is connected to the variable speed transmission of the independent driving gear 24 constituting the power output member. The specific connection method is: the rotation gear 23 passes through the square lower bracket 2 on the other side of the square beam and The unidirectional rotation gear 27 forms coaxial rotation, and then the power is transmitted to the driving gear 24 by the chain 28, so that the driving gear 24 is rotated and the power is output. The one-way rotating gear 27 and the driving gear 24 of this variable-speed transmission mechanism can be directly meshed with each other; a gearbox transmission connection composed of gear sets can also be used, and the gearbox can be placed on one side or inside of the square beam; The one-way rotating gear 27 and the driving gear 24 can be changed into corresponding pulleys, and the two pulleys are connected by a belt. Come The hydraulic pressure in the output oil pipe 8 of the self-hydraulic pressure conversion mechanism enters the hydraulic cylinder through the inlet and outlet of the hydraulic cylinder 20 and directly moves the movable cylinder of the hydraulic cylinder; the return spring 22 can push the movable cylinder of the hydraulic cylinder in the opposite direction to move the cylinder. The internal hydraulic pressure is discharged out of the cylinder, and then flows into the aforementioned hydraulic cylinder 3 through the oil pipe, and then pushes the upper bracket 1 upward to reset. In this solution, the rotating shaft of the transmission gear 24 may be a power wheel shaft directly, that is, the power wheel 48 rotates coaxially with the driving gear 24; the driving gear 24 may also mesh with the power wheel with different shafts or be connected by gears or chains. The specific method is: A power wheel gear 50 is connected to the shaft 49 of the power wheel 48, and a transmission gear 41 is connected to the drive gear shaft 29. The transmission gear 41 and the power wheel gear 50 are connected by a chain 51 (see FIGS. 14 to 15). The bracket 52 is fixed to the lower bracket 2, and the power wheel shaft 49 is actually mounted on the bracket 52. In addition, the transmission gear 41 and the power wheel gear 50 can also be designed to be directly meshed or connected through gear transmission. The transmission gear can also be designed as a transmission pulley, and the power wheel gear should be changed to a unidirectional pulley accordingly. A belt is used between the two pulleys Drive connection. In FIG. 15, the power wheel gear 50 and the bearing sleeve of the one-way rotation bearing are connected. The one-way bearing 53 has an outer diameter connected to the bearing sleeve. It is fixed on the bracket 52 so that the wheel shaft 49 rotates in the bearing 55. The one-way bearing 53 can be changed into a one-way gear device similar to that on a bicycle to maintain the inertia of driving. In addition, when the rotation gear 27 is a non-unidirectional gear, the power wheel gear 50 adopts a unidirectional gear structure.

The above-mentioned variable-speed rotating mechanism may also adopt the structure of FIG. 11, which is composed of a hydraulic cylinder 20, a pulley group 30, a runner 31, a one-way gear 32, a sliding block 34, a return spring 35, The return guide post 36 is formed. One end of the steel cable 37 on the pulley group is fixed to the fixing bracket 39 by screws 40, and the fixing bracket 39 is fixed to the lower bracket. The other end of the steel cable 37 is changed by the turning wheel 31 It is fixed in the outer ring wire groove of the one-way gear 32. The movable end of the pulley unit is integrated with the sliding block 34 and placed in the sliding rail 38 on the lower bracket. The movable column and the return guide column 36 of the hydraulic cylinder and the sliding block respectively The block 34 is connected, and the one-way rotating part or shaft of the one-way gear 32 is the power output member 24. A return spring can also be set in the outer ring of the one-way gear 32. After each pull, the wire is returned to the wire groove 33 on the outer ring of the one-way gear 32 (see Figure 12); It can be designed as a set of steel cables wound in reverse on the outer ring of one-way gear. One end of the opposite steel cable is fixed on the outer ring of one-way gear, the other end is fixed on the spring, and the other end of the spring is fixed on the bracket. When the reverse cable is pulled by the spring, the cable of the pulley group is wound back on the outer ring of the one-way gear. The returning members such as the return spring 35 in this solution have the function of pushing the hydraulic cylinder movable column back, and also have the function of pushing up the upper bracket to reset; and the one-way gear 32 can be unidirectional The round wheel is replaced by a round wheel fixed on a one-way round wheel, and one end of the steel cable is fixed on the round wheel. In this solution, the one-way gear 32 can be coaxially connected with the power wheel 48 (the power wheel is directly fixed to the rotating inner or outer ring of the one-way gear 32, or the power wheel is fixed to the one-way gear. On the rotating shaft); the one-way gear 32 can also be rotationally connected to the power wheel in different shafts, which is the same as the above-mentioned different shaft transmission connection method between the driving gear and the power wheel (see FIG. 15), and will not be described again.

The variable-speed rotating mechanism of this device can also adopt the structure of FIG. 13, that is, it is composed of a hydraulic pump 42 and a fuel tank 43 fixed to the lower bracket 2. The input port 44 of the hydraulic pump is in communication with the output oil pipe 8, and the output port 45 is in communication with the oil tank 43. The fuel tank outlet 46 communicates with the input oil pipe 7 to form an oil circuit cycle. The rotating shaft (or rotating casing) of the hydraulic pump is the power output member 24. The size and speed of the power output are determined by the flow rate and the area of the hydraulic pump blades. It is decided that it can be set according to needs. It is only required that the tightness of the hydraulic pump is good and the power loss is small. When the hydraulic pump structure is adopted, check valves 9 and 10 should be provided on the pipelines of the input oil pipe 7 and the output oil pipe 8. In this solution, the rotating shaft of the hydraulic pump, that is, the power output member 24 may be a power wheel shaft directly (when the hydraulic pump casing rotates, the power wheel is directly fixed to the casing) to directly drive the power wheel 48 to rotate (see FIG. 22- 23). At this time, a return oil pipe with a one-way valve may also be provided between the input port of the hydraulic pump and the outlet of the fuel tank to shorten the return flow of the liquid and reduce the return resistance. The hydraulic pump 42 and the power wheel 48 can also be connected with different shafts or gears and chains (see Figure 15).

The device of the present invention is provided with a speed regulating mechanism 60 (see FIG. 16) on the pipeline of the output oil pipe 8 of the hydraulic pressure conversion mechanism. The speed regulating mechanism is a flow control valve, which can adjust the oil flow to achieve the purpose of speed regulation. The pipeline of the oil pipe 8 is also provided with a cut-off power mechanism 61 (see FIG. 16). The cut-off power mechanism 61 is an oil circuit cut-off switch, which can switch the hydraulic circulation system to achieve the purpose of unloading.

The self-powered driving device of the present invention can be implemented by using the following schemes:

(1) This device can be combined with the structure shown in Fig. 1, Fig. 8, Fig. 10, Fig. 14 and Fig. 15, and the output port of the hydraulic cylinder 20 shown in Fig. 8 communicates with the input oil pipe 7 shown in Fig. 1, Form an oil circuit shuttle system. The input oil pipe 7 and the output oil pipe 8 of the device are not provided with a one-way valve, and the input oil pipe 7 may be removed, that is, the hydraulic cylinder 3 and the hydraulic cylinder 20 are communicated only by the oil pipe 8.

(2) This device can be combined with the structure shown in Figure 1, Figure 11, Figure 14 and Figure 15.

The output port of the hydraulic cylinder in 11 communicates with the input pipe 7 of FIG. 1. The one-way valves are not provided on the input and output oil pipes 7 and 8 in FIG. 1, and the input oil pipe 7 may be removed, that is, the hydraulic cylinder 3 and the hydraulic cylinder 20 are communicated only by the oil pipe 8. (3) This device can be combined with the structure shown in Fig. 1, Fig. 13, Fig. 14 and Fig. 15. The output port of the oil tank 43 in Fig. 13 communicates with the input oil pipe 7 in Fig. 1 to form an oil circuit circulation system. The input and output oil pipes 7 and 8 in FIG. 1 are provided with check valves 9 and 10.

(4) This device can be a combination of the structures shown in FIG. 5, FIG. 8, FIG. 10, FIG. 14, and FIG. 15. The output port of the hydraulic pump 20 in FIG. 8 communicates with the input oil pipe 7 in FIG. 5, and in FIG. The input and output oil pipes 7 and 8 are not provided with a one-way wide, and the input oil pipe 7 can also be removed, that is, the hydraulic cylinder 3 and the hydraulic cylinder 20 are connected only by the oil pipe 8.

(5) This device can be combined with the structure shown in Fig. 5, Fig. 11, Fig. 14 and Fig. 15, the output port of the hydraulic cylinder 20 in Fig. 11 communicates with the input oil pipe 7 in Fig. 5, and the input in Fig. 5 No one-way valve is provided on the output oil pipes 7 and 8, and the input oil pipe 7 can also be removed, that is, the hydraulic cylinder 3 and the hydraulic cylinder 20 are only communicated by the oil pipe 8.

(6) This device can be combined with the structure shown in Fig. 5, Fig. 13, Fig. 14 and Fig. 15. The output port of the oil tank 43 in Fig. 13 communicates with the input oil pipe 7 in Fig. 5, and the input and output in Fig. 5 The oil pipes 7 and 8 are provided with check valves 9 and 10.

(7) This device can be combined with the structure shown in Fig. 6, Fig. 13, Fig. 14 and Fig. 15. The output port of the oil tank 43 in Fig. 13 communicates with the input oil pipe 7 in Fig. 6 to form an oil circuit circulation system. The input and output oil pipes 7 and 8 of 6 are provided with check valves 9 and 10.

The above schemes are all schemes in which the upper bracket 1 is one and can be used on roller skates, skateboards, or skateboards. In the above schemes, a return spring may be provided on the movable column 4, the rack 14 or the hydraulic cylinder 3 substitute of the hydraulic cylinder to speed up the resetting action of the upper bracket; the upper bracket and the lower bracket 2 may also be provided. Install a return spring 74 (see Figure 17) directly between them for quick return. As mentioned above, in the various combinations of the device, a governor mechanism and a cut-off power mechanism can be provided on the pipeline of the output oil pipe 8.

The hydraulic cylinder of the present invention may be a cylinder or a special-shaped hydraulic cylinder. When the device of the present invention is used as a power driving device for a skateboard, a scooter, a two-wheel, a three-wheel or a four-wheel vehicle, the upper bracket may also be used. There are 2-8 (or even more, if used in a park tour car), the hydraulic pressure conversion mechanism is corresponding to 2-8 groups, each group of hydraulic pressure conversion mechanisms connected under the upper bracket can use Figure 1 Figure 5, Figure 6 structure.

An example of a self-made shoe composed of the device will be described below with reference to FIGS. 16-17. The side row wheel self-driving shoes shown in FIG. 16 are assembled by a power driving device composed of FIGS. 1, 13, 14 and 15. Into the application of self-shoes. The upper bracket 1 is mounted on the sole of the shoe body 62. On the oil path of the output oil pipe 8, an adjustment mechanism, ie, a flow control valve 60, and a shut-off power mechanism, namely, an oil circuit switch 61 are provided. The oil circuit switch 61 may be a single or multiple path switch. The hydraulic pressure can be switched to the oil tank or hydraulic cylinder; the pipeline of the oil circuit is placed in the middle of the bracket 52, and the output oil pipe 8 is connected to the hydraulic output check valve 10, which is connected to the oil circuit switch 61, and then connected to the flow control valve 60. The control valve is connected to the hydraulic pump input port 44 and the fuel tank output port 46 to communicate with the input oil pipe 7. The check valve 9 is provided on the input oil pipe 7, which forms a hydraulic circulation system that can be switched and adjusted. Proportionally, the output of the hydraulic cylinder reaches a vertical stroke of 2cm to 4cm, which makes the power shoe wheels turn for 2 to 6 turns. The driving speed is based on people's ability to easily overcome the inertia of exercise and safe braking. The advantage of the system is that shifting a small distance downward can make the driving distance longer, and the downward movement is a horizontal downward movement, which is gentle. The oil circuit switch 61 is linked with the brake. As long as the brake is applied, the power is cut off immediately. It is also equipped with a regulating valve that limits the speed and power, and has a lock and release device for the wheels to facilitate driving. Brake devices are installed on the front and rear to improve stability and safety. The power shoe wheel can only turn forward, not backward. It is easier and safer to use. The power drive system can be installed on the side roller shoes or on the inline roller shoes, as long as more than two wheels can be installed.

The brake part of the self-shoe configuration shown in FIG. 16 has a front and rear brake frame 63, and a wheel 64 on which a rolling resistance can be set is installed at the bottom. Move, pull the brake cable 66, drive the brake bracket 67, and then drive the brake pad 68 with a limit spring. The brake pad contacts the wheel to generate braking resistance.

The predetermined braking mechanism is mainly composed of a disk 69 fixing a steel cable, a half gear on the disk, a lever 71 and a power arm 70. This device is convenient for walking and beginners.

Every time the brake is used, the oil circuit switch lock lever 72 with the return spring is lifted by the steel cable fixed on the front and rear brake brackets 67 to release the oil circuit switch to cut off the oil circuit. To restore oil flow, press the oil inlet It is also possible to operate the push-button 73 of the road switch with feet.

FIG. 17 is a schematic view of a in-line self-shoe made of the device. The power drive part in the figure (see Figure 17) is based on Figure 1 (remove the two hydraulic cylinders in Figure 1 and add a return spring 74 between the upper and lower brackets), Figure 8, Figure 10 (in Figure 10) The rotating gear 23 is located on the other outer side of the lower bracket 2. The gears 27 and 24 are placed on the inside of the beam and directly mesh with each other for transmission.) And FIG. 14 (the power wheel gear 50 in FIG. 14 is directly fixed to the shoe wheel 48, and the shoe shaft 49 is fixed on the bracket 52, the wheel shaft 49 and the wheel 48 are connected by bearings, and two power wheel gears 50 It is connected to the transmission gear 41 by a chain 51).

Examples of the device of the present invention applied to a self-skating board, a scooter, and a tricycle will be described below with reference to Figs. 18-24. As mentioned above, the upper bracket of the device used on a skateboard or scooter may be one. At this time, the upper bracket and the pedal are integrated into one body, and the hydraulic pressure conversion mechanism corresponds to one group. The structure of the entire device is similar to that of an automatic shoe. The device structure is basically the same. The self-skating skateboard shown in FIG. 18 has the device of the present invention composed of an upper bracket (ie, a movable pedal), in which the hydraulic cylinder 3 is fixed to the skateboard body 75, that is, the skateboard body 75 functions as a lower bracket, and the oil inlet of the hydraulic cylinder 20 The port is above the hydraulic cylinder. The movable cylinder of the hydraulic cylinder is fixedly connected to the rack 21. The rack 21 is slidably connected in the guide rail 16. The one-way gear 23 meshing with the rack 21 directly drives the power wheel 48 to rotate. In FIG. 18, 47 Is a wheel support, and 80 is a bearing.

The upper bracket 1 of the device used on an automatic skateboard or scooter can also be divided into two (see FIG. 19), and the corresponding hydraulic pressure conversion mechanism composed of a hydraulic cylinder 3 (in addition to the structure shown in FIG. 1, it can also be used Structure of Figure 5 or Figure 6) There are two groups. In order to correspond to the upper bracket, the pedals of the skateboard or scooter are also divided into two independent pieces. The output oil pipes 8 of the hydraulic pressure conversion mechanism are all connected to the input port 44 of the hydraulic pump 42, the output port 45 of the hydraulic pump 42 is connected to the inlet pipe of the oil tank 43, and the fuel tank outlet 46 is connected to the input oil pipe 7 of the hydraulic pressure conversion mechanism. The input and output oil pipes 7, 8 are provided with check valves 9, 10, respectively. The hydraulic pump rotating shaft (or hydraulic pump rotating casing) in this solution is the power output member 24, and the power wheels are directly fixed to the hydraulic pump rotating shaft (or A transmission gear 41 is connected to the hydraulic pump rotating shaft 24, and a power wheel gear 50 is connected to the power wheel shaft 49 (the gear adopts a one-way gear structure). A chain 51 is used between the transmission gear 41 and the power wheel gear 50. Join (see Structure of FIG. 14) on, a return spring 74 is provided between the lower bracket and the brake control valve passage may be provided in the pipeline 81 the output port side of the hydraulic pump. The device shown in FIG. 20 is roughly the same in structure as that in FIG. 19, with the following differences: The device in FIG. 20 is provided with an oil circuit switching valve 76 on the oil circuit of the output oil pipe of some hydraulic cylinders, and the switched liquid flows through the discharge pipe 77 to The fuel tank 43 is inside. In the device composed of FIGS. 19 and 20, the upper bracket 1 (that is, the pedal) can also adopt multiple structures, such as 3 to 8 upper brackets, and a set of hydraulic pressure conversion mechanisms is provided under each upper bracket, thereby achieving Two to four people work together; a return spring 74 is provided between the upper and lower brackets to facilitate the return of the upper bracket (other return mechanisms can also be used). FIG. 21 is another structure of a power driving device used on an automatic skateboard or a scooter. The difference between this solution and the mechanism shown in FIG. 19 lies in: The fuel tank was dropped; ② and the hydraulic pump output port 45 is directly connected to the input oil pipe 7 of the hydraulic pressure conversion structure. One of the two upper brackets in FIG. 21 is moved up, and the other is moved downward, so the number of upper brackets and the number of hydraulic pressure conversion mechanisms in FIG. 21 are even numbers. When the upper bracket is divided into When 4, 6, or 8, the formed automatic skateboard or scooter can be used by 2 people, 3 people, or 4 people; the number of upper brackets can also exceed 8, such as 10, 12 for 5 It can be used by 6 persons and 6 persons; the upper bracket return mechanism can be omitted in FIG. 21.

22 is a self-propelled scooter with two longitudinally arranged pedals, that is, the upper bracket 1. The power driving device may adopt the structure shown in FIGS. 19 to 21; wherein the hydraulic pump 42 is placed beside the power wheel 48, and the power wheel 48 is driven. Rotate; oil circuit check valves 9, 10 and oil circuit brake control valve 81 are fixed to the hydraulic pump 42 (see Figure 24). In the figure, 82 is the front brake member, 78 is the scooter frame, 79 is the brake handlebar, and 83 is the oil brake control valve rope.

FIG. 23 is a self-propelled tricycle (four-wheeled vehicle, similarly) with two laterally arranged pedals, namely, the upper bracket 1. Two power wheels 48 are placed outside the three-wheel frame 84, and a hydraulic pump 42 is placed between the power wheels. 84 plays the role of the lower bracket, and its oil check valve and oil brake control valve 81 are also placed on the hydraulic pump 42 (see Figure 24). The pedal or upper bracket in Figures 22-23 can adopt multiple sets of structures for use by two or more people.

Claims

Rights request

1. A self-powered driving device having an upper bracket (1) which can be combined with a pedal or a sole, which is also characterized in that it also has a lower bracket (2), and the lower bracket is fixedly connected to the upper bracket, which can be from the upper bracket. The human body ’s gravity or pedal force converts the hydraulic pressure into a hydraulic pressure conversion mechanism. The pressure receiving part of the conversion mechanism is connected to the upper bracket, and its hydraulic output oil pipe (8) is connected to the lower bracket to convert the hydraulic pressure into a hydraulic pressure. The power transmission rotation mechanism is connected, and the power output member (24) of the transmission rotation mechanism is drivingly connected with the power wheel (48) connected to the lower bracket.

2. The self-powered driving device according to claim 1, characterized in that the upper bracket (1) is one to eight, and the hydraulic pressure conversion mechanisms are correspondingly one to eight groups, and each group of the hydraulic pressure conversion mechanisms is fixed to the lower bracket. The upper end of the movable column (4) of the hydraulic cylinder is fixed to the corresponding upper bracket, and the inner cavity of the cylinder and the input and output oil pipes (7, 8) Connect.

3. The self-powered driving device according to claim 1, characterized in that the upper brackets (1) are one to eight, and the hydraulic pressure conversion mechanisms are correspondingly one to eight groups, and each group of hydraulic pressure conversion mechanisms is fixed to the lower bracket. It consists of two hydraulic cylinders (3) and a hydraulic pack (11). The upper end of the movable column (4) of the hydraulic cylinder and the upper end of the hydraulic pack are fixed to the corresponding upper bracket. The hydraulic cylinder and the hydraulic pack are connected to the input and output respectively. The oil pipes (7, 8) communicate.

4. The self-powered driving device according to claim 3, characterized in that the two hydraulic cylinders (3) are replaced by two guide posts, the upper ends of the guide posts are fixed to the upper bracket, and the lower ends of the guide posts extend into the lower bracket. Inside the corresponding guide rail.

5. The self-powered driving device according to claim 1, characterized in that the upper bracket (1) is one to eight, and the hydraulic pressure conversion mechanisms are correspondingly one to eight groups, and each group of hydraulic pressure conversion mechanisms is composed of two sets of racks ( 14) The assembly with the hydraulic pump (15), the upper end of the rack is fixed to the upper bracket, the hydraulic pump (15) is fixed to the lower bracket, and the rack is installed in the guide rail (16) on the lower bracket and connected with the lower The gear (17) on the bracket meshes, and the gear (17) is connected to the hydraulic pump shaft (19) via a unidirectional rotating wheel (18) connected to it. The hydraulic pump communicates with the input and output oil pipes (7, 8). .

6. The self-powered driving device according to claim 1, 2, 3 or 4, characterized in that the variable-speed rotation mechanism is composed of a hydraulic cylinder (20) fixed on the lower bracket and a movable cylinder mounted on a movable cylinder of the hydraulic cylinder. The gear bar (21), the return spring (22) and the rotating gear (23) fixed on the lower bracket are formed, wherein the movable cylinder of the hydraulic cylinder and the return spring are placed in the guide rail (25) on the lower bracket to rotate the gear

(23) meshes with the rack (21), the rotating gear (23) adopts a one-way gear structure, and the one-way rotating inner ring constitutes a power output member (24), and the rotating gear (23) and the power wheel (48) are coaxially driven connection.

7. The self-powered driving device according to claim 1, 2, 3 or 4, characterized in that the variable-speed rotation mechanism is composed of a hydraulic cylinder (20) fixed to the lower bracket, and a gear rack (21) mounted on a movable cylinder of the hydraulic cylinder. ), A return spring (22) and a rotating gear (23) and a power output member (24) respectively fixed to the lower bracket, wherein the movable cylinder of the hydraulic cylinder and the return spring (25) are placed on the guide rail of the lower bracket Inside, the rotating gear (23) meshes with the gear bar (21), the power output member (24) is a driving gear, the driving gear (24) and the rotating gear (23) are connected by a transmission mechanism, and the driving gear (24) and power Wheel (48) Coaxial drive connection or different shaft drive connection.

8. The self-powered driving device according to claim 1, 2, 3, or 4, characterized in that the variable-speed rotation mechanism is composed of a hydraulic cylinder (20), a pulley block (30), a runner (31), and a single unit fixed to the lower bracket. The steering gear (32), the sliding block (34), the return spring (35), and the return guide post (36) are formed, and one end of the steel cable (37) on the pulley group is fixed after being changed by the turning wheel (31). In the outer ring groove of the one-way gear (32), the movable end of the pulley unit is integrated with the sliding block and placed in the pulley track (38) on the lower bracket. The movable column and the return guide column of the hydraulic cylinder (20) (36) are connected to the sliding block (34) respectively; the one-way rotating part of the one-way gear (32) constitutes the power output member (24), and the one-way gear (32) is coaxially connected with the power wheel (48) or has a different shaft Drive connection.

9. The self-powered driving device according to claim 1, 2, 3, 4 or 5, characterized in that the variable speed rotation mechanism is composed of a hydraulic pump (42) and a fuel tank (43) fixed to the lower bracket, and the input of the hydraulic pump The port (44) communicates with the output oil pipe (8), the output port (45) communicates with the inlet of the fuel tank (43), the outlet of the fuel tank communicates with the input oil pipe (7), and one-way is provided on the input and output oil pipes (7, 8) Valves (9, 10); The rotating shaft or housing of the hydraulic pump constitutes a power output member

(24), the hydraulic pump (42) is connected with the power wheel (48) by a coaxial transmission or a different shaft transmission.

10. The self-powered driving device according to claim 1, 2, 3, 4 or 5, characterized in that the number of the upper brackets (1) and the group number of the hydraulic pressure conversion mechanisms correspond to an even number of 2, 4, 6, 8 The variable-speed rotation mechanism is composed of a hydraulic pump (42) fixed on the lower bracket. The input port (44) of the hydraulic pump is in communication with the output oil pipe (8), and the output port (45) is connected to the input oil pipe (7) of the hydraulic pressure conversion mechanism. The input and output oil pipes (7, 8) are provided with a one-way wide (9, 10); the rotating shaft or housing of the hydraulic pump (42) forms a power output member (24), and the hydraulic pump (42) and power Wheel (48) Coaxial drive connection or different shaft drive connection.

11. The self-powered driving device according to claim 1, characterized in that the pipeline of the output oil pipe (8) or the input oil pipe (7) is provided with a speed regulating mechanism (60) capable of adjusting the flow rate of the oil circuit and a valve capable of cutting off the oil circuit. Shut off the power mechanism (61).

12. The self-powered driving device according to claim 1, characterized in that a return spring (74) is installed between the upper bracket (1) and the lower bracket (2).