TWI637871B - Hydraulic braking system and control device thereof - Google Patents

Abstract

The invention discloses a hydraulic brake system for a bicycle. The hydraulic brake system includes a control device and a brake device, which are respectively disposed on the handle of the bicycle and the brake disc. The control device comprises a grip and a brake body, and the brake body comprises a first hydraulic module, a first actuating lever, a motor module, a transmission mechanism, a second actuating lever and a second hydraulic module. One end of the first actuating rod is connected to the grip, and the other end abuts the first hydraulic module. One end of the second actuating rod is connected to the transmission mechanism, and the other end is abutted to the second hydraulic module. When the grip is pressed, the motor module is activated, and the transmission mechanism drives the second actuating rod to push against the second hydraulic module. The braking device includes a first brake hydraulic module and a second brake hydraulic module, and is in communication with the first hydraulic module and the second hydraulic module, respectively.

Description

Hydraulic brake system and its control device

The present invention relates to a hydraulic brake system, and more particularly to a hydraulic brake system for a bicycle and a control device therefor.

In general, the bicycle braking system mainly includes a control device and an actuator. The control device is disposed on the handle of the bicycle, and the control device has a brake grip for the user to press. The brake device is disposed on a wheel rim or a wheel connected to the wheel, and the brake wheel is gripped by the brake device to drive the brake device to clamp the wheel rim or the brake disk to achieve the brake Effect. At present, the common brake system on the market can be divided into two modes according to the driving mode: the first type is a cable brake system, that is, the cable is used to drive the brake device; the second type is a hydraulic brake system, which is generally driven by oil pressure. Braking device. Because the cable is used for too long, it is easy to cause the cable to be fatigued, resulting in a decrease in the acuity of the brake. For bicycles that are generally used for leisure or riding as a vehicle, the cable brake system is sufficient. However, for bicycles that are transported or often riding on mountain roads, the brakes are more used and Stable hydraulic brake system.

FIG. 1 is a schematic diagram of a conventional hydraulic brake system, please refer to FIG. 1 . As described above, the conventional hydraulic brake system 9 includes a control device 91 and a brake device 92. The control device 91 has a grip 911 having a hydraulic groove 912 and a piston 913 therein, and one end of the grip 911 is coupled to the piston 913. The control device 91 further has a communication passage 914 (or an oil passage, a fuel pipe) to connect the hydraulic groove 912 and the brake device 92. The brake device 92 includes a brake hydraulic pressure tank 921 and a brake piston 922 that is connected to the communication passage 914. When the user presses the grip 911, one end of the grip 911 can push the piston 913, so that part of the liquid in the hydraulic pressure tank 912 flows to the brake hydraulic pressure tank 922 via the communication passage 914, and the pressure change inside the brake hydraulic pressure tank 922 can push the brake Piston 923. The outer side of the brake piston 923 may further have a friction pad to clamp the brake disc to achieve the effect of braking.

Although the conventional hydraulic brake system 9 has stronger braking force and stability than the cable brake system, with the advancement of technology, the load capacity of the bicycle frame can be greatly increased, so the user Bicycles can be used to transport more and heavier cargo. However, the conventional hydraulic brake system 9 does not increase the braking performance depending on the weight of the bicycle. Therefore, if an uphill, downhill, or bumpy road is encountered during the transportation, the conventional hydraulic brake system 9 cannot provide sufficient braking force to stop the bicycle, which is a very dangerous situation.

In view of the above problems, the main object of the present invention is to provide a hydraulic brake system and a control device thereof, wherein the control device has two hydraulic modules (a first hydraulic module, a second hydraulic module), and the brake device is also There are two hydraulic modules (the first brake hydraulic module and the second brake hydraulic module) designed to solve the problem of insufficient braking force of the conventional hydraulic brake system.

To achieve the above objects, the present invention provides a hydraulic brake system for a bicycle that includes a handle and at least one brake disc. The hydraulic brake system includes a control device and a brake device. The control device is disposed on the handle and includes a grip and a brake body. The brake main body includes a first hydraulic module, a first actuating lever, a motor module, a transmission mechanism, a second actuating lever and a second hydraulic module. The first hydraulic module is housed in the brake body. One end of the first actuating rod is connected to the grip, and the other end abuts the first hydraulic module. The motor module is housed in the brake body and includes a switch. The transmission mechanism is connected to the motor module. One end of the second actuating rod is connected to the transmission mechanism. The second hydraulic module abuts the other end of the second actuating lever. When the grip is pressed, the grip is displaced and the switch is triggered, and the motor module drives the transmission mechanism to rotate, and the transmission mechanism drives the second actuation rod to push against the second hydraulic module. The brake device is disposed on the brake disc and includes a first brake hydraulic module and a second brake hydraulic module. The first brake hydraulic module is in communication with the first hydraulic module, and the second brake hydraulic module is in communication with the second hydraulic module.

In order to achieve the above object, the present invention further provides a control device for a bicycle, the bicycle includes a handle, at least one brake disc and a brake device, the brake device is disposed on the brake disc and has a first brake hydraulic module And a second brake hydraulic module. The control device is disposed on the handle and includes a grip and a brake body. The brake main body includes a first hydraulic module, a first actuating lever, a motor module, a transmission mechanism, a second actuating lever and a second hydraulic module. The first hydraulic module is received in the brake body and communicates with the first brake hydraulic module. One end of the first actuating rod is connected to the grip, and the other end abuts the first hydraulic module. The motor module is housed in the brake body and includes a switch. The transmission mechanism is connected to the motor module. One end of the second actuating rod is connected to the transmission mechanism. The second hydraulic module abuts the other end of the second actuating lever and communicates with the second brake hydraulic module. When the grip is pressed, the grip is displaced and the switch is triggered, and the motor module drives the transmission mechanism to rotate, and the transmission mechanism drives the second actuation rod to push against the second hydraulic module.

According to an embodiment of the invention, the switch is an electromagnetic induction switch adjacent to the first hydraulic module, and the first hydraulic module has a magnetic member.

According to an embodiment of the invention, when the grip is pressed, the grip is displaced and the first actuating lever is pushed against the first hydraulic module to displace the magnetic member to trigger the electromagnetic induction switch.

According to an embodiment of the invention, the electromagnetic induction switch comprises an electromagnetic induction component and a control circuit. The electromagnetic induction component senses the displacement of the magnetic component and generates an induction signal to the control circuit, and the control circuit activates the motor module.

According to an embodiment of the invention, the transmission mechanism comprises a worm gear set, a drive shaft and a shift lever, the worm gear set is connected to the motor module and the drive shaft, the shift lever is pivotally connected to the drive shaft, and the second actuating rod is connected On the lever.

According to an embodiment of the invention, the motor module drives the worm gear set to rotate, and the worm worm wheel set drives the drive shaft to rotate and rotates the lever toward the second hydraulic module.

According to an embodiment of the invention, the transmission mechanism further includes a ratchet and a pawl, the ratchet is disposed on the transmission shaft, the pawl is coupled to the lever, and one end of the pawl is engaged with the ratchet.

According to an embodiment of the invention, the motor module drives the worm gear set to rotate, the worm worm wheel set drives the drive shaft to rotate, and the lever and the ratchet rotate with the drive shaft to rotate in the direction of the second hydraulic module.

According to an embodiment of the invention, the grip is pivotally connected to the drive shaft, and the front end of the grip has an accommodating space, and the lever is disposed in the accommodating space, and the pawl is located inside the lever.

According to an embodiment of the invention, the grip has a guiding protrusion, and the pawl has a guiding groove. When the grip is pressed and the second actuating rod is pushed against the second hydraulic module, the guiding convex portion is located Guide the groove.

According to the present invention, the hydraulic brake system and the control device thereof according to the present invention have a first hydraulic module and a second hydraulic module, and the brake device also has a corresponding first brake hydraulic mold. The design of the group and the second brake hydraulic module. When the grip is pressed, the first actuating lever connected to the grip pushes against the first hydraulic module, and the first stage (main) braking effect is achieved by the first brake hydraulic module. While the grip is pressed, the displacement triggers the switch of the motor module, the motor module drives the transmission mechanism to rotate, and the second actuation rod is pushed against the second hydraulic module, and then the first brake hydraulic module reaches the first Two-stage (auxiliary) braking effect. Therefore, the control device has two sets of hydraulic modules (the first hydraulic module and the second hydraulic module), which can improve the braking force of the hydraulic brake system.

In order to enable the reviewing committee to better understand the technical contents of the present invention, the preferred embodiments are described below.

2 is a schematic view of a hydraulic brake system according to an embodiment of the present invention, as shown in FIG. 2. The hydraulic brake system S of the present embodiment is applied to the bicycle 8, and the bicycle 8 is only partially connected to the hydraulic brake system S in order to simplify the drawing. The hydraulic brake system S includes a control device C and a brake device 7, and is mounted to the handle 81 of the bicycle 8 and the brake disc 82, respectively. In the present embodiment, the hydraulic brake system S of the front wheel is taken as an example, so that the brake device 7 is disposed on the brake disc 82 of the front wheel, and the control device C shown in FIG. 2 is exemplified by the handle 81 disposed on the right side. In other embodiments, the handle on the left side may also be provided. Regarding the hydraulic brake system of the rear wheel, the description of the hydraulic brake system S of the front wheel can be directly referred to, and will not be described herein. The main components of the control device C and the brake device 7 will be described below, and the connection relationship of the components of the control device C and its operation will be described in detail later.

3A is an exploded perspective view of the control device shown in FIG. 2, FIG. 3B is an exploded perspective view of the control device shown in FIG. 3A, and FIG. 4A is a partial assembled view of the control device shown in FIG. 3A, and FIG. 3B, FIG. 3B, FIG. 4A and FIG. The control device C includes a grip 1 and a brake body 2. The grip 1 is located on the front side of the handle 81 for the user to press. The brake main body 2 includes a first hydraulic module 20, a first actuating lever 30, a motor module 41, a transmission mechanism 42, a second actuating lever 50 and a second hydraulic module 60. The control device C of the embodiment has two hydraulic modules, which are respectively a first hydraulic module 20 and a second hydraulic module 60, and are accommodated in the brake body 2, respectively, and are respectively driven by the first actuating lever 30 and the first The second actuating rod 50 is pushed. Moreover, the braking device 7 includes a first brake hydraulic module 71 and a second brake hydraulic module 72, and the first brake hydraulic module 71 is in communication with the first hydraulic module 20, and the second brake hydraulic module 72 is The second hydraulic module 60 is connected to control the braking of the first brake hydraulic module 71 through the first hydraulic module 20, and to control the braking of the second brake hydraulic module 72 through the second hydraulic module 60, as shown in FIG. Show. It should be noted that FIG. 2 indicates that the first brake hydraulic pressure module 71 and the second brake hydraulic pressure module 72 are marked on the portion contacting the oil hole. In addition, the first and second are clearly named naming manners, and are not available to limit the present invention.

As shown in FIG. 4A, one end of the first actuating lever 30 is connected to the grip 1, and the other end is abutted with the first hydraulic module 20. Therefore, when the user presses the grip 1, the first actuating lever 30 can be driven to start. The first hydraulic module 20. In this embodiment, the first hydraulic module 20 includes a first hydraulic piston 21, a first hydraulic pressure tank 22 (located inside the brake body 2), and a first communication passage 23 (shown in FIG. 2). The first hydraulic piston 21 and the first hydraulic pressure tank 22 are located inside the control device C, and the details of the operation can be directly referred to the hydraulic groove 912 and the piston 913 of the prior art, and are not described herein. The first actuation rod 30 abuts against the first hydraulic piston 21, and the first hydraulic pressure tank 22 communicates with one end of the first communication passage 23, and the other end is connected to the first brake hydraulic pressure module 71 of the brake device 7, as shown in FIG. Shown. Similarly, the first brake hydraulic module 71 and the second brake hydraulic module 72 include an element structure such as a hydraulic groove and a piston. The brake hydraulic pressure groove 922 and the brake piston 923 of the prior art can be referred to, and are not described herein.

When the user presses the grip 1, the grip 1 is displaced and the first actuating lever 30 is pushed against the first hydraulic piston 21, and a part of the liquid in the first hydraulic piston 21 is used. In this embodiment, oil is taken as an example. The pressure can be changed to the first brake hydraulic pressure module 71 via the first communication passage 23, and the pressure of the hydraulic pressure of the first brake hydraulic pressure module 71 can push the piston structure of the first brake hydraulic pressure module 71 to reach the first Stage (main) braking effect. When the user presses the grip 1 and generates displacement, the second brake hydraulic module 72 can be activated through the motor module 41, the transmission mechanism 42, the second actuating lever 50 and the second hydraulic module 60 to achieve the second The braking effect of the stage (auxiliary), the details and the actuation relationship of each component are further explained below.

FIG. 5 is a schematic view showing the combination of the control device shown in FIG. 2B. Referring to FIG. 4B and FIG. 5 simultaneously, the motor module 41 of the present embodiment is housed in the brake body 2, and the transmission mechanism 42 is coupled to the motor module. The group 41 is such that the transmission mechanism 42 can be driven by the motor module 41. The motor module 41 of the present embodiment includes a motor 411, a speed reducer 412, a switch 413, and a power source 414, both of which are located inside the brake body 2. The motor 411 and the reducer 412 are electrically connected to each other to drive the speed reducer 412, and the switch 413 is electrically connected to the motor 411 to activate or deactivate the motor 411. This embodiment triggers the switch 413 by the displacement of the grip 1, and activates the motor 411. In the present embodiment, the switch 413 is an electromagnetic induction switch, which includes an electromagnetic induction element 4131 and a control circuit 4132, and is disposed under the motor 411 and the reducer 412 to be adjacent to the first hydraulic module 20.

Moreover, the first hydraulic module 20 of the embodiment further has a magnetic member 24 (shown in FIG. 3A) located at the front end of the first hydraulic piston 21. When the grip 1 is pressed, the grip 1 interlocks the first actuating lever 30 to push against the first hydraulic piston 21 of the first hydraulic module 20, thereby displacing the magnetic member 24 at the front end to generate a magnetic field change, and the electromagnetic induction element 4131 After sensing the change of the magnetic field, the sensing signal is supplied to the control circuit 4132, so that the control circuit 4132 provides a signal to activate the motor 411 of the motor module 41, thereby achieving the purpose of triggering the switch 413. Here, the motor 411 of the motor module 41 is turned on, and the speed reducer 412 is driven to rotate the transmission mechanism 42. In other embodiments, the switch 413 can also be mechanically switched and disposed on the displacement path of the grip 1. When the grip 1 is pressed and displaced, the grip 1 can be directly pressed and the switch 413 can be triggered. Thereby, the motor module 41 is activated.

As shown in FIG. 4A and FIG. 4B , one end of the second actuating lever 50 is connected to the transmission mechanism 42 , the other end is abutted against the second hydraulic module 60 , and the second actuating lever 50 is abutted against the second hydraulic module. The second hydraulic piston 61 of 60. When the motor module 41 is activated, the motor 411 and the speed reducer 412 drive the transmission mechanism 42 to rotate, and the transmission mechanism 42 can further drive the second actuation rod 50 to push against the second hydraulic piston 61 of the second hydraulic module 60. In detail, the transmission mechanism 42 of the embodiment includes a worm gear set 421 (including a worm 422 and a worm wheel 423), a transmission shaft 424 and a lever 425. The worm gear set 421 is coupled to the motor module 41 and Drive shaft 424. The worm 422 of the worm worm gear set 421 is coupled to the reducer 412 of the motor module 41, and the worm gear 423 is coupled to the drive shaft 424. In the perspective of FIG. 4B, after the motor module 41 of the embodiment is started, the motor 411 and the speed reducer 412 are rotated counterclockwise, and the worm gear set 421 is simultaneously driven to rotate counterclockwise.

Specifically, the speed reducer 412 rotates the worm 422 in the counterclockwise direction, and further drives the worm wheel 423 to rotate in the counterclockwise direction as well. Since the transmission shaft 424 is disposed in the worm wheel 423, the transmission shaft 424 is rotated in the counterclockwise direction. In short, the transmission shaft 424 is rotated by the worm gear group 421. Moreover, the lever 425 is pivotally connected to the transmission shaft 424, and the second actuation rod 50 is coupled to the lever 425. Therefore, when the transmission shaft 424 is rotated counterclockwise, the lever 425 can also be rotated to rotate counterclockwise, that is, The lever 425 is rotated in the direction of the second hydraulic module 60, and the second actuating lever 50 is moved in the direction of the second hydraulic module 60 to push against the second hydraulic piston 61. It should be noted that, in this embodiment, the angle of view of FIG. 4B is taken as an example, so that the motor 411, the speed reducer 412, the worm gear set 421, the drive shaft 424, and the lever 425 are rotated in the counterclockwise direction. If the viewing angle is set to the left side of the control device C, the aforementioned components may be rotated clockwise. Therefore, it is only necessary to move the transmission shaft 424 and the lever 425 in the direction of the second hydraulic module 60, and neither the counterclockwise direction nor the clockwise direction is used to limit the scope of the present invention.

Similarly, the second hydraulic module 60 includes a second hydraulic pressure groove 62 (located inside the brake main body 2) and a second communication passage 63, one end of the second communication passage 63 and the second hydraulic pressure, in addition to the second hydraulic piston 61. The slot 62 is in communication and the other end is coupled to the second brake hydraulic module 72 of the brake device 7. When the second actuating lever 50 pushes against the second hydraulic piston 61, a part of the liquid in the second hydraulic pressure tank 62 flows to the second brake hydraulic pressure module 72 via the second communication passage 63 to push the second brake hydraulic pressure module 72. The piston structure is used to achieve the second stage (auxiliary) braking effect.

Referring to FIG. 3A and FIG. 3B, the transmission mechanism 42 further includes a ratchet 426 and a pawl 427. FIG. 6 is a combination of the first actuating rod, the drive shaft, the ratchet and the pawl shown in FIG. 3A. For an enlarged view, please refer to Figure 4B and Figure 6. The ratchet 426 of the present embodiment is disposed on the drive shaft 424, the pawl 427 is coupled to the shift lever 425, and one end of the pawl 427 is engaged with the ratchet 426. In the present embodiment, the grip 1 is pivotally connected to the transmission shaft 424, and the front end of the grip 1 has an accommodating space 11 , and the lever 425 is disposed in the accommodating space 11 . Further, the pawl 427 is located inside the lever 425 and is fixed to the lever 425. In other words, one end of the lever 425 is coupled to the second actuating lever 50 and the other end is coupled to the pawl 427.

It should be noted that the end of the pawl 427 of the embodiment is connected to the lever 425, and the side wall of the front end of the pawl 427 has a guiding groove 4271. Correspondingly, the grip 1 has a guiding protrusion 12. . In a specific state, the guiding protrusion 12 is movable within the guiding groove 4271. The action between the ratchet 426, the pawl 427 and its guiding groove 4271, and the guiding projection 12 will be further described below.

7A to 7D are diagrams showing the operation of the ratchet and the pawl shown in FIG. 6 when the grip is pressed. Please refer to FIG. 4A and FIG. 7A first. As described above, when the user presses the grip 1, the first actuating lever 30 is pushed against the first hydraulic piston 21 to activate the first hydraulic module 20 and the first brake hydraulic module 71 to reach the first stage (mainly ) The brake effect. At this time, the guiding convex portion 12 is located at the upper edge of the guiding groove 4271. Referring to FIG. 4B, as described above, while the grip 1 is pressed, the switch 413 of the motor module 41 can be triggered, and the worm gear set 421 is driven by the reducer 412, and the drive shaft 424 is interlocked with the worm wheel 423. Rotate in the direction of the second hydraulic module 60. As shown in FIG. 7B, at this time, the lever 425 and the ratchet 426 are rotated in the direction of the second hydraulic module 60 in conjunction with the transmission shaft 424, and the pawl 427 at the end of the lever 425 is moved upward, and the guide protrusion is guided. 12 is located in the guiding groove 4271. The second actuating lever 50 at the front end of the lever 425 is pushed against the second hydraulic piston 61 to activate the second hydraulic module 60 and the second brake hydraulic module 72 to achieve the second stage (auxiliary) braking effect. At this time, since the guiding protrusion 12 is located in the guiding groove 4271 so that the ratchet 426 and the pawl 427 (front end) are engaged with each other, the lever 425 does not push back the second actuating lever 50 by the second hydraulic piston 61. And returning to the original position to continuously start the braking mechanism of the second hydraulic module 60 and the second brake hydraulic module 72.

Referring to FIG. 7C, the user can then release the grip 1 to return the first brake hydraulic module 71 and the first hydraulic module 20 to the original state to stop the braking effect of the first stage. When the grip 1 is released, the first hydraulic piston 21 rebounds and the magnetic member 24 is displaced. Please refer to FIG. 4B and FIG. 5. At this time, the electromagnetic induction element 4131 can also sense the change of the magnetic field and transmit the induction. The signal is sent to the control circuit 4132, and the motor 411 is turned off by the control circuit 4132. At the same time, the guiding protrusion 12 is disengaged from the upper edge of the guiding groove 4271, so that the ratchet 426 and the pawl 427 (front end) are loosened, and the first hydraulic piston 21 can further push back the second actuating lever 50, and dial together The lever 425 is returned to the state before the grip 1 is not pressed, as shown in Fig. 7D. By the structural design of the ratchet 426, the pawl 427 and its guiding groove 4271, and the guiding protrusion 12 of the grip 1, the second actuating rod 50 can be continuously pushed against the second hydraulic piston 61 for continuous activation. The braking mechanism of the second hydraulic module 60 and the second brake hydraulic module 72. When the grip 1 is released, it will return to the original position.

In addition, the present invention further provides a control device for use in a bicycle. The bicycle includes a first handle, at least one brake disc and a brake device. The brake device is disposed on the brake disc and has a first brake hydraulic module and a second brake hydraulic module. The control device is disposed on the handle and includes a grip and a brake body. The brake main body includes a first hydraulic module, a first actuating lever, a motor module, a transmission mechanism, a second actuating lever and a second hydraulic module. The first hydraulic module is in communication with the first brake hydraulic module. The first hydraulic module is received in the brake body and communicates with the first brake hydraulic module. One end of the first actuating rod is connected to the grip, and the other end abuts the first hydraulic module. The motor module is housed in the brake body and includes a switch. The transmission mechanism is connected to the motor module. One end of the second actuating rod is connected to the transmission mechanism. The second hydraulic module abuts the other end of the second actuating lever and communicates with the second brake hydraulic module. Wherein, with the above structure, when the grip is pressed, the grip is displaced and the switch is triggered, and the motor module drives the transmission mechanism to rotate, and the transmission mechanism drives the second actuation rod to push against the second hydraulic module. For details of the connection and actuation relationship of the components of the control device, reference may be made to the control device C of the foregoing embodiment, and no further details are provided herein.

In summary, the hydraulic brake system and the control device thereof according to the present invention have a first hydraulic module and a second hydraulic module by the control device, and the brake device also has a corresponding first brake hydraulic module and a second The design of the brake hydraulic module. When the grip is pressed, the first actuating lever connected to the grip pushes against the first hydraulic module, and the first stage (main) braking effect is achieved by the first brake hydraulic module. While the grip is pressed, the displacement triggers the switch of the motor module, the motor module drives the transmission mechanism to rotate, and the second actuation rod is pushed against the second hydraulic module, and then the first brake hydraulic module reaches the first Two-stage (auxiliary) braking effect. Therefore, the control device has two sets of hydraulic modules (the first hydraulic module and the second hydraulic module), which can improve the braking force of the hydraulic brake system.

It should be noted that the various embodiments described above are exemplified for the convenience of the description, and the scope of the claims is intended to be limited by the scope of the claims.

1‧‧‧ grip

11‧‧‧ accommodating space

12‧‧‧Guided convex

2‧‧‧Car body

20‧‧‧First hydraulic module

21‧‧‧First hydraulic piston

22‧‧‧First hydraulic tank

23‧‧‧First contact channel

24‧‧‧Magnetic parts

30‧‧‧First actuating rod

41‧‧‧Motor Module

411‧‧‧Motor

412‧‧‧Reducer

413‧‧‧ switch

4131‧‧‧Electromagnetic induction components

4132‧‧‧Control circuit

414‧‧‧Power supply

42‧‧‧Transmission mechanism

421‧‧‧ worm gear set

422‧‧‧ worm

423‧‧‧ worm gear

424‧‧‧ drive shaft

425‧‧ ‧bar

426‧‧‧ratchet

427‧‧‧ pawl

4271‧‧‧ Guide groove

50‧‧‧Second actuating rod

60‧‧‧Second hydraulic module

61‧‧‧Second hydraulic piston

62‧‧‧Second hydraulic tank

63‧‧‧Second communication channel

7‧‧‧Brakes

71‧‧‧First brake hydraulic module

72‧‧‧Second brake hydraulic module

8‧‧‧Bicycle

81‧‧‧Handle

82‧‧‧煞盘盘

9‧‧‧Hydraulic brake system

91‧‧‧Control device

911‧‧‧ grip

912‧‧‧Hydraulic trough

913‧‧‧Piston

914‧‧‧Contact Channel

92‧‧‧Brakes

921‧‧‧ calipers

922‧‧‧Brake hydraulic tank

923‧‧‧Brake piston

C‧‧‧Control device

S‧‧‧Hydraulic brake system

1 is a schematic view of a conventional hydraulic brake system. 2 is a schematic view of a hydraulic brake system according to an embodiment of the present invention. 3A is an exploded perspective view of the control device shown in FIG. 2. FIG. 3B is an exploded perspective view of the control device shown in FIG. 3A from another perspective. FIG. Fig. 4A is a partial schematic view showing the combination of the control device shown in Fig. 3A. Fig. 4B is a partial schematic view showing the combination of the control device shown in Fig. 3B. FIG. 5 is a schematic diagram showing the sub-combination of the control device shown in FIG. 2B. FIG. 6 is an enlarged schematic view showing the combination of the first actuating rod, the propeller shaft, the ratchet wheel and the pawl shown in FIG. 3A. 7A to 7D are diagrams showing the operation of the ratchet and pawl shown in Fig. 6 when the grip is pressed.

Claims (11)

A hydraulic brake system for a bicycle, the bicycle comprising a handle and at least one brake disc system, the hydraulic brake system comprising: a control device disposed on the handle, the control device comprising: a grip; and a brake body, The utility model comprises: a first hydraulic module, which is received in the main body of the brake; a first actuating rod, one end of which is connected to the grip, the other end abuts the first hydraulic module; and a motor module is accommodated The motor module includes a switch; a transmission mechanism coupled to the motor module; a second actuating lever having one end coupled to the transmission mechanism; and a second hydraulic module coupled to the second actuation The other end of the rod abuts, when the grip is pressed, the grip is displaced and the switch is triggered, the motor module drives the transmission mechanism to rotate, and the transmission mechanism drives the second actuation rod to push the second hydraulic module And a braking device disposed on the brake disc, the braking device comprising: a first brake hydraulic module in communication with the first hydraulic module; and a second brake hydraulic module, and the second hydraulic mold group Pass. The hydraulic brake system of claim 1, wherein the switch is an electromagnetic induction switch adjacent to the first hydraulic module, and the first hydraulic module has a magnetic member. The hydraulic brake system of claim 2, wherein when the grip is pressed, the grip is displaced and the first actuating lever is pushed against the first hydraulic module to displace the magnetic member to trigger the electromagnetic sensory switch. The hydraulic brake system of claim 3, wherein the electromagnetic induction switch comprises an electromagnetic induction component and a control circuit, the electromagnetic induction component senses displacement of the magnetic component and generates an inductive signal to the control circuit, the control The circuit activates the motor module. The hydraulic brake system of claim 1, wherein the transmission mechanism comprises a worm gear set, a drive shaft and a shift lever, the worm gear set is coupled to the motor module and the drive shaft, the shift lever The pivot shaft is pivotally connected to the transmission shaft, and the second actuating rod is coupled to the lever. The hydraulic brake system of claim 5, wherein the motor module drives the worm gear set to rotate, the worm gear set drives the drive shaft to rotate, and the direction of the lever toward the second hydraulic module Turn. The hydraulic brake system of claim 5, wherein the transmission mechanism further comprises a ratchet and a pawl, the ratchet is disposed on the transmission shaft, the pawl is coupled to the lever, and the pawl is One end is engaged with the ratchet. The hydraulic brake system of claim 7, wherein the motor module drives the worm gear set to rotate, the worm gear set drives the drive shaft to rotate, and the lever and the ratchet are coupled with the drive shaft The direction of the second hydraulic module rotates. The hydraulic brake system of claim 7, wherein the grip is pivotally connected to the drive shaft, and the front end of the grip has an accommodating space, and the lever is disposed in the accommodating space, the pawl Located inside the lever. The hydraulic brake system of claim 9, wherein the grip has a guiding protrusion, the pawl having a guiding groove, when the grip is pressed, and the second actuating rod is pushed against the In the second hydraulic module, the guiding protrusion is located in the guiding groove. A control device for a bicycle, the bicycle comprising a handle, at least one brake disc and a brake device, the brake device being disposed on the brake disc and having a first system a hydraulic cylinder module and a second brake hydraulic module, the control device is disposed on the handle, and the control device comprises: a grip; and a brake body, comprising: a first hydraulic module, is received in the brake a main body is connected to the first brake hydraulic module; a first actuating lever has one end connected to the grip and the other end abutting the first hydraulic module; a motor module is received in the brake body The motor module includes a switch; a transmission mechanism coupled to the motor module; a second actuating lever having one end coupled to the transmission mechanism; and a second hydraulic module coupled to the second actuator One end abuts and communicates with the second brake hydraulic module. When the grip is pressed, the handle displaces and triggers the switch, and the motor module drives the transmission mechanism to rotate, and the transmission mechanism drives the second actuation The rod is pushed against the second hydraulic module.