TWM563984U - Brake distributing device - Google Patents

Abstract

A brake distribution device for a hydraulic brake system includes a body, a piston and an auxiliary oiling device. The body has a cavity, a first brake oil passage and a second brake oil passage. The piston system is movably disposed in the body to divide the cavity into a first oil chamber and a second oil chamber. One end of the piston is adjacent to the second brake oil passage and is used to selectively close the first brake oil passage. The auxiliary oiling device is located between the second oil chamber and the first oil chamber for injecting brake oil from the second oil chamber into the first oil chamber.

Description

Brake distribution device

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

Traditionally, the locomotive hydraulic brake system is designed to press the left brake lever to brake the rear wheel, and press the right brake handle to brake the front wheel. When an emergency occurs, the correct way to operate is to press the left brake lever to brake the rear wheel and then brake the front wheel. However, in an emergency, the driver often crashes due to wrong operation.

In order to improve the safety of the brakes, the international locomotive is gradually required to install a linked brake system (CBS) or an anti-lock brake system (ABS). The interlocking brake system is a brake system that allows the driver to simultaneously brake the front and rear wheels by simply pressing a single brake handle.

In the event of an emergency, the driver often cannot distinguish between the left and right hands. The natural reaction is to press the brake handles with both hands. However, although the conventional interlocking brake system can achieve the purpose of simultaneously braking the front and rear wheels by pressing a single brake handle, when the brake brake is pressed, the brake handle on the other side cannot be activated, which affects the use. The smooth operation of the person. In addition, the force applied by the driver pressing the brake handle on the other side cannot be transmitted to the brake system to improve the overall braking effect.

In view of this, the main purpose of the present invention is to provide a brake distribution device for a hydraulic brake system, which can improve the problem of the operation of the conventional interlocking brake system, and can effectively utilize the brake force of the driver's hands to improve the braking effect. .

The present invention provides a brake distribution device. The brake distribution device comprises a body, a piston and an auxiliary oiling device. The body has a cavity, a first brake oil passage and a second brake oil passage. The piston system is movably disposed in the body to divide the cavity into a first oil chamber and a second oil chamber. One end of the piston is adjacent to the second brake oil passage and is used to selectively close the first brake oil passage. The auxiliary oiling device is located between the second oil chamber and the first oil chamber for transferring oil pressure from the second oil chamber to the first oil chamber.

Through the brake distribution device provided in this embodiment, on the one hand, like the conventional interlocking brake system, the driver can achieve the purpose of front and rear wheel brakes by pressing a single brake handle. On the other hand, the driver does not have the stagnation of a single side handle that cannot be pressed, but can simultaneously press the handlebars on both sides to increase the braking force. Therefore, the brake distribution device provided by the present invention helps to improve the smoothness of the driver's operation, and effectively utilizes the braking force of the driver's hands to improve the braking effect.

The specific embodiments of the present invention will be further illustrated by the following embodiments and drawings.

100,200,300,400,500, 600,700‧‧‧ brake distribution device

10‧‧‧Hydraulic brake system

12‧‧‧ Left brake hose

14‧‧‧right brake hose

16‧‧‧Front wheel brakes

18‧‧‧ Rear wheel brakes

120,220,520,620‧‧‧ body

140,240,340,640‧‧‧Pistons

180,380,580‧‧‧Auxiliary oil filling device

V1, V2‧‧‧ check valve

160,460,560‧‧‧Flexural components

120a‧‧‧ cavity

122‧‧‧First brake circuit

124‧‧‧Second brake circuit

C1‧‧‧First Oil Room

C2‧‧‧Second oil room

590‧‧‧Flexible components

P1‧‧‧ slider

522‧‧‧ outstanding

644‧‧‧First slider

642‧‧‧Second slider

646‧‧‧Flexible components

726‧‧‧Restriction valve

The first A and B diagrams are schematic views of a first embodiment of the novel brake distribution device.

The second figure is a schematic diagram of an embodiment of a brake distribution device of the first A diagram for a hydraulic brake system.

The third figure is a schematic view of a second embodiment of the novel brake distribution device.

The fourth figure is a schematic view of a third embodiment of the novel brake distribution device.

The fifth figure is a schematic view of a fourth embodiment of the novel brake distribution device.

6A and 6B are schematic views of a fifth embodiment of the present brake distribution device.

The seventh figure is a schematic view of a sixth embodiment of the novel brake distribution device.

The eighth figure is a schematic view of a seventh embodiment of the novel brake distribution device.

The specific embodiments of the present invention will be described in more detail below with reference to the schematic drawings. The advantages and features of the present invention will be apparent from the following description and claims. It should be noted that the drawings all adopt a very simplified form and all use non-precision ratios, and are only used to facilitate and clearly explain the purpose of the novel embodiments.

The first A and B diagrams are schematic views of a first embodiment of the novel brake distribution device. The first A diagram is a schematic diagram of the brake distribution device not being actuated, and the first B diagram is a schematic diagram of the brake distribution device in the state of the front and rear wheels. The second drawing is a schematic view of an embodiment of a brake distribution system 100 of the first A diagram for a hydraulic brake system 10. The hydraulic brake system 10 has a left brake oil pipe 12 and a right brake The oil pipe 14, a front wheel brake device 16, a rear wheel brake device 18 and a brake distribution device 100. The hydraulic brake system 10 can be used for a motorcycle, an electric motor vehicle, an auxiliary electric bicycle, a bicycle, an ATV, etc., which has left and right brake handles and two or more wheels for the user to perform brake control.

Referring to FIGS. 1A and 1B, the brake distribution device 100 includes a body 120, a piston 140, an auxiliary oiling device 180 and a resilient member 160. The main body 120 has a cavity 120a, a first brake oil passage 122 and a second brake oil passage 124. The piston 140 is movably disposed in the body 120 to divide the cavity 120a into a first oil chamber C1 and a second oil chamber C2. One end of the piston 140 is adjacent to the second brake oil passage 124 and is urged by the oil pressure from the second brake oil passage 124 to selectively block the first brake oil passage 122. One end of the first brake oil passage 122 is connected to the first oil chamber C1, and the other end is connected to the second oil chamber C2. In the present embodiment, the second oil chamber C2 is connected to the right brake oil pipe 14, and the first oil chamber C1 is connected to the front wheel brake device 16. One end of the second brake oil passage 124 is connected to the left brake oil pipe 12, and the other end is connected to the rear wheel brake device 18.

In the present embodiment, the second brake oil passage 124 is connected to the left brake oil pipe, and is controlled by the left brake hand. The first brake oil passage 122 is connected to the right brake oil pipe, and is controlled by the right brake hand. However, the present invention is not limited to this. According to actual design requirements, the second brake oil passage 124 may also be connected to the right brake oil pipe, and the first brake oil passage 122 may be connected to the left brake oil pipe. Further, in another embodiment, the first oil chamber C1 may be communicated to the rear wheel brake device, and the second brake oil circuit 124 is correspondingly communicated to the front wheel brake device.

The auxiliary oiling device 180 of the present embodiment includes a check valve V1 between the first oil chamber C1 and the second oil chamber C2. The check valve V1 has directivity, and the brake oil is allowed to be injected into the first oil chamber C1 from the second oil chamber C2, but the brake oil is prohibited from being injected into the second oil chamber C2 from the first oil chamber C1. Therefore, please refer to FIG. B at the same time. After the left-hand braking action, the piston 140 is pushed by the oil pressure of the second brake oil passage 124 to block the first brake oil passage 122, and the first oil chamber C1 is squeezed to drive the front wheel brake. At this time, if the right hand brakes again, the brake oil is injected into the first oil chamber C1 from the second oil chamber C2 via the check valve V1 to increase the front wheel braking force. At the same time, the piston 140 also moves toward the second brake oil passage 124 to increase the rear wheel braking force. It should be noted that the check valve V1 of the embodiment is disposed and fixed to the inner side of the body 120 to facilitate the manufacture.

However, the present invention is not limited to this. First, the check valve V1 can be disposed at any position between the first oil chamber C1 and the second oil chamber C2, and is not limited to the position set in the embodiment. For example, the subsequent third diagram shows an embodiment in which the check valve V2 is disposed inside the piston. In addition, any component disposed between the first oil chamber C1 and the second oil chamber C2 and capable of transmitting oil pressure from the second oil chamber C2 to the first oil chamber C1 can be applied to the auxiliary oiling device of the present invention. For example, the subsequent fifth diagram shows an embodiment in which the oil pressure of the second oil chamber C2 is transmitted to the first oil chamber C1 using the slider P1.

The resilient member 160 is disposed between the body 120 and the piston 140 to provide an elastic restoring force to urge the piston 140 back into position. In a preferred embodiment, the resilient member 160 can be a compression spring. Specifically, in the present embodiment, the elastic member 160 is located in the first oil chamber C1. One end of the resilient member 160 abuts the piston 140 and the other end abuts the body 120 to provide resilient return force along the axial direction of the piston to urge the piston 140 to move. In one embodiment, the resilient member 160 surrounds the piston 140 with one end projecting against the side of the piston 140 and the other end against the separation between the first oil chamber C1 and the second oil chamber C2.

Referring to FIG. B, when the driver presses the left brake lever to inject the brake oil to the second brake oil passage 124, the piston 140 is subjected to the pressure from the second brake oil passage 124 and moves toward the second oil chamber C2 (ie, Move to the right), and simultaneously squeeze the brake oil in the first oil chamber C1 to the front wheel brake device to achieve the purpose of braking the front and rear wheels together. More precisely, when the driver presses the left brake lever, the rear brake is activated first, and then the hydraulic pressure is transmitted through the piston 140 to brake the front wheel. At the same time, the first brake oil passage 122 between the first oil chamber C1 and the second oil chamber C2 is also blocked by the piston.

At this time, if the driver presses the right brake lever, the brake oil is injected into the first oil chamber C1 from the second oil chamber C2 through the auxiliary oil filling device 180 (mainly the check valve V1) to enhance the front wheel braking force. . At the same time, the piston 140 also moves toward the second brake oil passage 124 to increase the rear wheel braking force.

When the braking action is completed, the driver releases the left brake handle, and the piston 140 is then pushed back to the position of the first A map by the force of the elastic member 160 toward the second brake oil passage 124, and is blocked by the piston 140. The first brake oil passage 122 will also open.

As described above, through the brake distribution device provided in this embodiment, on the one hand, like the conventional interlocking brake system, the driver can achieve the purpose of braking the front and rear wheels by pressing a single brake handle. another On the other hand, in the case where the front and rear wheels are braked together, the driver does not have the stagnation feeling that the single side handle cannot be pressed, and the two side handles can be pressed at the same time to increase the braking force. Therefore, the brake distribution device provided by the present invention helps to improve the smoothness of the driver's operation, and can effectively utilize the braking force of the driver's hands to improve the braking effect.

The third figure is a schematic view of a second embodiment of the novel brake distribution device. The main difference between the brake distribution device 200 of the present embodiment and the brake distribution device 100 of the first embodiment is that the design of the piston 240 and the body 220 of the present embodiment is different from that of the first embodiment. Compared with the first embodiment, as shown in the figure, the piston 240 of the present embodiment has a smaller cross-sectional area adjacent to the second brake oil passage 124 to reduce the pressure generated by the second brake oil passage 124. The ratio applied to the piston 240 ensures that the second brake oil passage 124 is applied to the pressure of the rear wheel brake device.

The fourth figure is a schematic view of a third embodiment of the novel brake distribution device. The main difference between the brake distribution device 300 of the present embodiment and the brake distribution device 100 of the first embodiment is that the auxiliary oiling device 380 (mainly the check valve V2) of the present embodiment is disposed in the piston 340. Both ends of the check valve V2 are respectively located at the end of the piston adjacent to the second oil chamber C2 and adjacent to the side wall of the first oil chamber C1. Thereby, when the first brake oil passage 122 is blocked by the piston 340, the brake oil can still be supplied from the second oil chamber C2 to the front wheel brake device via the check valve injection first oil chamber C1.

The fifth figure is a schematic view of a fourth embodiment of the novel brake distribution device. The main difference between the brake distribution device 400 of the present embodiment and the brake distribution device 100 of the first embodiment is that the elastic member 460 of the present embodiment is not located in the first oil chamber C1 but in the second oil chamber C2. Inside. One end of the resilient member 460 abuts the inner wall of the body 120 and the other end abuts the end of the piston 140 to provide a resilient restoring force along the axial direction of the piston to urge the piston 140. In one embodiment, the resilient member 460 can be a compression spring.

6A and 6B are schematic views of a fifth embodiment of the present brake distribution device. The main difference between the brake distribution device 500 of the present embodiment and the brake distribution device 100 of the first embodiment is the difference of the auxiliary oiling device. As shown in FIG. 6A, the auxiliary oiling device 580 of the present embodiment includes a slider P1 disposed inside the body 520 and surrounding the piston 140 to replace the check valve V1 of FIG. This slider P1 is slidable in the axial direction of the piston with respect to the body 520 and the piston 140. The opposite sides of the slider P1 respectively contact the first oil chamber C1 and the second oil chamber C2 of the cavity for transmitting the pressure from the second oil chamber C2 to the first oil chamber C1. Thereby, as shown in FIG. 6B, when the driver presses the left brake lever to brake the front and rear wheels together, if the driver presses the right brake lever to press the second oil chamber C2, The oil pressure of the second oil chamber C2 pushes the slider P1 to apply pressure to the first oil chamber C1 to enhance the braking force for the front wheels.

In addition to the first embodiment, the push piston 140 is returned to the positioned elastic member 560. In this embodiment, an elastic member 590 is additionally disposed between the slider P1 and the body 520 to push the slider P1 to reset. Specifically, the inner side surface of the body 520 of the embodiment has a protrusion 522 corresponding to the first oil chamber C1, and the two sides of the protrusion respectively abut the elastic member 160 and the elastic member 590. The other end of the elastic member 590 is against the slider P1. Thereby, when the pressure of the second oil chamber C2 is released (that is, when the driver releases the right brake handle), the elastic member 590 can push the slider P1 to resume. Bit.

The seventh figure is a schematic view of a sixth embodiment of the novel brake distribution device. The main difference between the brake distribution device 600 of the present embodiment and the brake distribution device 100 of the first embodiment is that the piston 640 of the present embodiment includes a first slider 644 and a second slider 642. The second slider 642 slides corresponding to the body 620, and the first slider 644 is located inside the second slider 642 and slides corresponding to the second slider 642. The first slider 644 is biased against the second slider 642 through a resilient member 646. Further, the second slider 642 is pressed against the elastic member 160. The spring constant of the elastic member 646 is smaller than the spring constant of the elastic member 160 between the second slider 642 and the body 620. Therefore, when the oil pressure of the second brake oil passage 124 is applied to the piston 640, the pressure first pushes the first slider 644, and then transmits the elastic member 646 of the first slider 644 and the second slider 642. The two sliders 642 are moved to squeeze the brake oil in the first oil chamber C1 to achieve the purpose of braking the front and rear wheels together. This resilient element 646 can be a compression spring.

The brake distribution device 600 of the present embodiment can be understood to apply the pressure of the second brake oil passage 124 to the first slider 644 instead of the entire piston. Therefore, the brake distribution device 600 of the present embodiment helps to reduce the size of the force receiving surface of the piston and ensure the braking force of the second brake oil passage 124 for the rear wheel, compared to the brake distribution device of FIG.

As shown in the third figure, the brake distributing device of the second embodiment of the present invention transmits the cross-sectional area of the portion of the second brake oil passage 124 that is reduced by the piston 240 to achieve the purpose of ensuring the braking force of the rear wheel. In contrast, in this embodiment, the first slider 644 and the second slider 642 are used. The force surface of the entire piston 640 is used to achieve an effect similar to the embodiment of the third figure. Moreover, in one embodiment, the cavity system between the first slider 644 and the second slider 642 is in direct communication with the first oil chamber C1 to ensure smooth movement of the piston 640.

The eighth figure is a schematic view of a seventh embodiment of the novel brake distribution device. The main difference between the brake distribution device 700 of the present embodiment and the brake distribution device 300 of the fourth embodiment is that the second brake oil passage 124 of the embodiment is connected to the front wheel brake device 16, and the first oil chamber C1 is connected to the rear. The wheel brake device 18, in addition, the brake distribution device 700 of the present embodiment has a restrictor valve 726 disposed on the second brake oil passage 124 to adjust the oil pressure applied to the front wheel brake device by the second brake oil passage 124. Thereby, when the driver presses the left brake lever 124 to press the second brake oil passage 124, most of the braking force is transmitted to the first oil chamber C1 via the piston 340 to activate the rear brake, and then the through. The restrictor valve 726 activates the front wheel brakes.

Through the brake distribution device provided in this embodiment, on the one hand, like the conventional interlocking brake system, the driver can achieve the purpose of front and rear wheel brakes by pressing a single brake handle. On the other hand, the driver does not have the stagnation of a single side handle that cannot be pressed, but can simultaneously press the handlebars on both sides to increase the braking force. Therefore, the brake distribution device provided by the present invention helps to improve the smoothness of the driver's operation, and effectively utilizes the braking force of the driver's hands to improve the braking effect.

The above is only the preferred embodiment of the present invention, and does not impose any limitation on the present invention. Any person skilled in the art can make any equivalent substitution or modification to the technical means and technical contents disclosed by the present invention without departing from the technical means of the present invention. Such changes are not subject to the technical means of the novel, and are still within the scope of protection of the present invention.

Claims (14)

A brake distribution device includes: a body having a cavity, a first brake oil passage and a second brake oil passage; and a piston movably disposed in the body to separate the cavity into a first oil chamber and a second oil chamber, one end of the piston is adjacent to the second brake oil passage, the piston is for selectively closing the first brake oil passage; and an auxiliary oil filling device is located at the Between the second oil chamber and the first oil chamber, the oil pressure is transmitted from the second oil chamber to the first oil chamber. The brake distribution device of claim 1, wherein the first brake oil passage is connected to a right brake oil pipe, and the right brake oil pipe is controlled by a right brake lever, the second brake oil passage. It is connected to a left brake oil pipe, which is controlled by a left brake handle. The brake distribution device of claim 1, wherein the second brake oil passage is connected to a right brake oil pipe, and the right brake oil pipe is controlled by a right brake hand, the first brake oil circuit. It is connected to a left brake oil pipe, which is controlled by a left brake handle. The brake distribution device of claim 1, wherein the auxiliary oiling device comprises a check valve between the first oil chamber and the second oil chamber. The brake distribution device of claim 4, wherein the check valve is disposed on the body. The brake distribution device of claim 4, wherein the check valve is disposed on the piston. The brake distribution device of claim 1, wherein the auxiliary oiling device comprises a slider disposed on the inner side of the body, the opposite sides of the slider respectively contacting the first oil chamber and the first a second oil chamber for transmitting pressure from the second oil chamber to the first oil chamber. The brake distribution device of claim 1, further comprising a first elastic member disposed between the body and the piston. The brake distribution device of claim 8, wherein the first elastic member is located in the first oil chamber. The brake distribution device of claim 8, wherein the first elastic member is located in the second oil chamber. The brake distribution device of claim 8, wherein the piston comprises a first slider, a second slider and a second elastic member, and the second slider is slid corresponding to the body. The first slider is located inside the second slider and slides corresponding to the second slider, the first slider passes through the second elastic element against the second slider, and the second The slider is against the first elastic element. The brake distribution device of claim 1, further comprising a restrictor valve disposed on the second brake oil passage. The brake distribution device of claim 1, wherein the second brake oil passage is connected to a front wheel brake The first oil chamber is configured to communicate to a rear wheel brake device. The brake distribution device of claim 1, wherein the second brake oil passage is connected to a rear wheel brake device, and the first oil chamber is configured to communicate with a front wheel brake device.