TWI845928B - Double cylinder interlocking brake system and a distributor thereof - Google Patents

Abstract

A distributor for a double cylinder interlocking brake system is disclosed in the present invention. The distributor includes a first cylinder block, a first piston rod, a second cylinder block, a second piston rod, a first lever, a second lever, a connecting element, a first trigger assembly, and a second trigger assembly. The first trigger assembly is utilized to make the first lever move to push the first piston rod and the second piston rod, so as to push the first piston rod and the second piston rod simultaneously to trigger a first brake device and a second brake device sequential. The second trigger assembly is utilized to make the second lever move to push the connecting element, so as to push the second piston rod to trigger the first brake device or the second brake device.

Description

Double-cylinder linked brake distribution device and system

The present invention relates to a brake distribution device and a system thereof, and more particularly to a double-cylinder linked brake distribution device and a system thereof.

Traditionally, motorcycle hydraulic brake systems are designed so that pressing the rear brake handle brakes the rear wheel, and pressing the front brake handle brakes the front wheel. When an emergency occurs, the correct way to operate is to first press the rear brake handle to brake the rear wheel and then press the front brake handle to brake the front wheel. However, in an emergency, drivers often fall off the motorcycle due to incorrect operation.

Common operating errors: Pressing the front brake handle too hard can cause the front wheel to lock and the vehicle to overturn. Pressing the rear brake handle too hard can cause the rear wheel to slip, drift, or even plow out of control. Even if the driver presses the front and rear brake handles at the same time, the rear brake device may not have enough braking force, which is equivalent to only pressing the front brake handle, causing the front wheel to lock and overturn. The positions of the front and rear brake handles vary from country to country, and the positions on different vehicles are not exactly the same. For Taiwanese motorcycles, the front brake handle is the right brake handle, and the rear brake handle is the left brake handle. Most bicycles in Taiwan have left-hand front wheel brake handles and right-hand rear wheel brake handles.

Therefore, in order to improve braking safety, the international community gradually requires light motorcycles to be equipped with a coupled braking system (CBS) or an anti-lock braking system (ABS). A coupled braking system is a braking system that allows the driver to control the front and rear wheels at the same time by simply pressing a single brake handle, reducing the risk of slipping or even overturning caused by single-wheel braking. In other words, the coupled braking system can decelerate the front and rear wheels at the same time, maintain the stability of the vehicle body, and reduce the probability of tire slippage. For the European Union, it has been specified that new motorcycles must be equipped with an anti-lock braking system (ABS). The use of motorcycles in Taiwan is even more popular. The Ministry of Transportation has stipulated that all new 2019 motorcycles with a displacement of 126cc or more must be equipped with an anti-lock braking system (ABS), and motorcycles with a displacement of 50-125cc must be equipped with an anti-lock braking system (ABS) or a linked braking system (CBS).

In view of the fact that in the prior art, braking the front wheel alone may easily cause the front wheel to lock and roll over, or braking the rear wheel alone may easily cause slipping, one of the main purposes of the present invention is to provide a dual-cylinder linked brake distribution device to solve at least one problem in the prior art.

The present invention is to solve the problems of the prior art. The necessary technical means adopted are to provide a double-cylinder linked brake distribution device, which includes a first cylinder body, a first piston rod body, a second cylinder body, a second piston rod body, a linkage rod, a connecting piece, an independent rod, a first trigger assembly and a second trigger assembly. The first cylinder body has a first oil pressure space, a first oil return port and a first oil inlet port, which are used to supply a first brake oil to the first oil pressure space through the first oil inlet port. The first piston rod body can be movably arranged in the first cylinder body and partially extends out of the first cylinder body, so as to be operated to move and close the first oil return port to squeeze the first brake oil to a first brake oil circuit. The second cylinder body has a second oil pressure space, a second oil return port and a second oil inlet port, for supplying a second brake oil to the second oil pressure space through the second oil inlet port. The second piston rod body can be movably arranged in the second cylinder body and partially extend out of the second cylinder body, for being operated to move and close the second oil return port to squeeze the second brake oil to a second brake oil circuit. The connecting rod is pivoted to the first piston rod body and abuts against the second piston rod body. The connecting member can be movably inserted into a second rod body hole of the second piston rod body. The independent rod is arranged corresponding to the connecting member, adjacent to the second cylinder body, and is operated to move along a moving stroke, and moves relative to the second piston rod body in a part of the moving stroke. The first trigger assembly is connected to the connecting rod and is used to trigger the connecting rod in an operational manner, so that the connecting rod pushes the first piston rod body and the second piston rod body. The second trigger assembly is connected to the independent rod and is used to trigger the independent rod in an operational manner, so that the independent rod moves along the moving stroke to abut and push the connecting member, so that the connecting member abuts and pushes the second piston rod body.

Based on the above necessary technical means, an additional technical means derived from the present invention is to make the double-cylinder linked brake distribution device further include a first elastic element and a second elastic element. The first elastic element is arranged between the first piston rod body and the first cylinder body. The second elastic element is arranged between the second piston rod body and the second cylinder body.

Based on the above necessary technical means, an additional technical means derived from the present invention is to make the connecting rod in the double-cylinder linked brake distribution device further include a trigger connecting part, a first pivot part and a second abutment part. The trigger connecting part is connected to the first trigger assembly. The first pivot part is connected to the trigger connecting part, adjacent to and pivoted to the first piston rod body. The second abutment part is connected to the trigger connecting part, adjacent to and abuts the second piston rod body.

On the basis of the above necessary technical means, an auxiliary technical means derived from the present invention is to make the independent rod in the double-cylinder linked brake distribution device further include a first abutment portion, the first abutment portion corresponds to the second piston rod body and has an accommodating space, so that the independent rod moves relative to the second piston rod body in part of the moving stroke.

On the basis of the above necessary technical means, an auxiliary technical means derived from the present invention is to make the connecting member in the double-cylinder linked brake distribution device have a top-up plane and an arc-shaped contour portion, the arc-shaped contour portion is adjacent to the independent rod for the independent rod to top up, and the top-up plane is far away from the independent rod for abutting the second piston rod body after the independent rod hits the arc-shaped contour portion.

On the basis of the above necessary technical means, an auxiliary technical means derived from the present invention is to provide a first through groove and a first rod body hole penetrating the first through groove at the bottom of the first piston rod body in the double-cylinder linked brake distribution device, and the first through groove is used for movably setting the linkage rod.

On the basis of the above necessary technical means, an auxiliary technical means derived from the present invention is to provide a connecting rod in the double-cylinder linked brake distribution device with a pivot hole corresponding to the first rod body hole.

On the basis of the above necessary technical means, an auxiliary technical means derived from the present invention is to provide a second through groove at the bottom of the second piston rod body in the double-cylinder linked brake distribution device, and the second through groove is used for movably setting the linkage rod.

Based on the above necessary technical means, an additional technical means derived from the present invention is to make the double-cylinder linked brake distribution device further include a third elastic element and a fourth elastic element. The third elastic element is arranged between the connecting rod and the first piston rod body. The fourth elastic element is arranged between the connecting member and the second piston rod body.

The present invention solves the problems of the prior art by adopting necessary technical means to provide a dual-cylinder linkage brake distribution system, including a first brake trigger device, a second brake trigger device, a first brake device, a second brake device and a dual-cylinder linkage brake distribution device. The first brake device is connected to one of a first brake oil circuit and a second brake oil circuit. The second brake device is connected to the other of the first brake oil circuit and the second brake oil circuit relative to the first brake device. The double-cylinder linked brake distribution device comprises a first cylinder body, a first piston rod body, a second cylinder body, a second piston rod body, a linkage rod, a connecting member, an independent rod, a first trigger assembly and a second trigger assembly. The first cylinder body has a first oil pressure space, a first oil return port and a first oil inlet port, for supplying a first brake oil to the first oil pressure space through the first oil inlet port. The first piston rod body can be movably arranged in the first cylinder body and partially extends out of the first cylinder body, for being operated to move and close the first oil return port, so as to squeeze the first brake oil to the first brake oil circuit. The second cylinder body has a second oil pressure space, a second oil return port and a second oil inlet port, for supplying a second brake oil to the second oil pressure space through the second oil inlet port. The second piston rod body can be movably arranged in the second cylinder body and partially extend out of the second cylinder body, for being operated to move and close the second oil return port to squeeze the second brake oil to the second brake oil circuit. The connecting rod is pivoted to the first piston rod body and abuts against the second piston rod body. The connecting piece can be movably inserted into a second rod body hole of the second piston rod body. The independent rod is arranged corresponding to the connecting piece, adjacent to the second cylinder body, and is operated to move along a moving stroke, and moves relative to the second piston rod body in a part of the moving stroke. The first trigger assembly is connected to the connecting rod and is used to trigger the connecting rod in an operational manner, so that the connecting rod pushes the first piston rod body and the second piston rod body. The second trigger assembly is connected to the independent rod and is used to trigger the independent rod in an operational manner, so that the independent rod moves along the moving stroke to abut and push the connecting member, so that the connecting member abuts and pushes the second piston rod body.

As mentioned above, the double-cylinder linked brake distribution device and system provided by the present invention utilizes an independent rod to independently push the connecting member to push the second piston rod body, thereby achieving the effect of independently driving the second brake device, and utilizes the linked rod to push the first piston rod body and the second piston rod body to achieve the effect of driving the first brake device and the second brake device, thereby complying with the specifications and relevant regulations of the linked brake system. Because there is no pivotal relationship between the connecting rod and the second piston rod body, the connecting member and the independent rod, and the independent rod has a housing space corresponding to the second piston rod body, the independent rod can move relative to the second piston rod body. When the independent rod abuts the connecting member alone and then pushes the second piston rod body alone to brake the front wheel, the connecting rod will not be driven to move, so it can be ensured that only the front wheel is braked. In addition, the abutting plane and arc-shaped contour of the connecting member can improve the sensitivity of the independent rod when abutting, and the front wheel is braked.

The specific implementation of the present invention will be described in more detail below in conjunction with schematic diagrams. The advantages and features of the present invention will become clearer based on the following description and the scope of the patent application. It should be noted that the drawings are all in a very simplified form and are not in exact proportions, and are only used to conveniently and clearly assist in explaining the embodiments of the present invention.

Please refer to Figures 1 to 4 and 7, wherein Figure 1 is a schematic diagram showing a two-cylinder linked brake distribution device provided by a preferred embodiment of the present invention; Figure 2 is a stereoscopic diagram showing a first cylinder body and a second cylinder body of the two-cylinder linked brake distribution device provided by a preferred embodiment of the present invention; Figure 3 is a stereoscopic diagram showing the components of the first piston rod body, the second piston rod body, the connecting rod, the connecting part and the independent rod of the two-cylinder linked brake distribution device provided by a preferred embodiment of the present invention; Figure 4 is an assembly stereoscopic diagram showing the third Figure; and Figure 7 is a schematic diagram showing the first Figure applied to a two-cylinder linked brake distribution system. As shown in the figure, a two-cylinder linked brake distribution system 100 includes a two-cylinder linked brake distribution device 1, a first brake trigger device 3, a second brake trigger device 2, a first brake device 5 and a second brake device 4.

The first brake device 5 is connected to one of a first brake oil circuit and a second brake oil circuit. The second brake device 4 is connected to the other of the first brake oil circuit and the second brake oil circuit relative to the first brake device 5. That is to say, if the first brake device 5 is connected to the first brake oil circuit, the second brake device 4 is connected to the second brake oil circuit, and vice versa. In this embodiment, the first brake device 5 is connected to the first brake oil circuit, the second brake device 4 is connected to the second brake oil circuit, and the first brake device 5 is a front wheel brake device, and the second brake device 4 is a rear wheel brake device. For example, but not limited to this. In other embodiments, the first brake device 5 may be a rear wheel brake device, and the second brake device 4 may be a front wheel brake device; the first brake device 5 may also be connected to the second brake oil circuit, and the second brake device 4 may be connected to the first brake oil circuit.

The dual-cylinder linked brake distribution device 1 includes a first cylinder body 11, a second cylinder body 12, a first piston rod body 13, a second piston rod body 14, a connecting rod 15, a connecting member 16, an independent rod 17, a first trigger assembly 18 and a second trigger assembly 19.

The first cylinder 11 has a first oil pressure space S1, a first oil return port EX1 and a first oil inlet IN1, for supplying a first brake oil to the first oil pressure space S1 through the first oil inlet IN1. In practice, the aperture of the first oil return port EX1 is smaller than the aperture of the first oil inlet IN1. The second cylinder 12 has a second oil pressure space S2, a second oil return port EX2 and a second oil inlet IN2, for supplying a second brake oil to the second oil pressure space S2 through the second oil inlet IN2. In practice, the aperture of the second oil return port EX2 is smaller than the aperture of the second oil inlet IN2.

In practice, in order to reduce the volume of the dual-cylinder linked brake distribution device 1, the first cylinder body 11 is connected to the second cylinder body 12, and a receiving groove T5 is formed between the first cylinder body 11 and the second cylinder body 12. The second cylinder body 12 includes a body 121 and a side cover 122. The body 121 is provided with a side receiving groove T3 corresponding to the second trigger assembly 19 and the independent rod 17. In this embodiment, the side cover 122 is also provided with a limiting receiving groove T4, and the limiting receiving groove T4 can be used to limit a boss (not shown) of the independent rod 17.

The first piston rod 13 is movably disposed in the first cylinder 11 and partially extends out of the first cylinder 11 to be operated to move and close the first oil return port EX1, so as to squeeze the first brake oil through a first oil outlet OUT1 to the first brake oil circuit. In more detail, the first upper cup of the first piston rod 13 (the black dot at the upper end of the first piston rod 13 in the figure) is higher than the first oil return port EX1, so as to close the first oil return port EX1.

The second piston rod 14 is movably disposed in the second cylinder 12 and partially extends out of the second cylinder 12 to be operated to move and close the second oil return port EX2, so as to squeeze the second brake oil to the second brake oil circuit through a second oil outlet OUT2. In more detail, the second upper cup of the second piston rod 14 (the black dot at the upper end of the second piston rod 14 in the figure) is higher than the second oil return port EX2, so as to close the second oil return port EX2.

The connecting rod 15 is pivotally connected to the first piston rod 13 and abuts against the second piston rod 14. The connecting member 16 is movably inserted into a second rod hole H2 of the second piston rod 14. The independent rod 17 is arranged corresponding to the connecting member 16, adjacent to the second cylinder 12, and is operated to move along a movement stroke, and moves relative to the second piston rod 14 in a part of the movement stroke.

In this embodiment, a first through groove T1 and a first rod hole H1 are formed at the bottom of the first piston rod 13, wherein the first rod hole H1 penetrates the first through groove T1. A second through groove T2 is formed at the bottom of the second piston rod 14, and preferably, the second rod hole H2 is connected to the second through groove T2. The connecting rod 15 further includes a first pivoting portion 151, a second abutting portion 152 and a trigger connecting portion 153. The trigger connecting portion 153 is provided with a structure with a limiting function corresponding to the first trigger assembly 18 (the diagram is similar to an L-shaped groove) to prevent the first trigger assembly 18 from being separated from the connecting rod 15. The first pivot part 151 is connected to the trigger link part 153, and is movably disposed in the first through groove T1, adjacent to and pivotally connected to the first piston rod 13, and is provided with a pivot hole H3 corresponding to the first rod hole H1. The second abutment part 152 is connected to the trigger link part 153, and is movably disposed in the second through groove T2, adjacent to and abutting the second piston rod 14.

The connecting member 16 further has a butting plane 161 and an arc-shaped contour portion 162. The arc-shaped contour portion 162 is used for the independent rod 17 to butt against. In practice, the independent rod 17 will butt against the arc-shaped contour portion 162 at the position closest to the independent rod 17 to ensure the sensitivity of the butt. The butt plane 161 is far away from the independent rod 17 and is used to butt against the arc-shaped contour portion 162 after the independent rod 17 butts against the arc-shaped contour portion 162 to ensure that the second piston rod body 14 can be pushed. The independent rod 17 further includes a first butt portion 171. The first butt portion 171 corresponds to the second piston rod body 14 and has an accommodation space S3. The accommodating space S3 surrounds the second piston rod 14 so that the independent rod 17 can move relative to the second piston rod 14 during a portion of the moving stroke.

The first trigger assembly 18 connects the first brake trigger device 3 and the connecting rod 15, and is used to trigger the connecting rod 15 in an operational manner, so that the connecting rod 15 pushes the first piston rod body 13 and the second piston rod body 14. The second trigger assembly 19 connects the second brake trigger device 2 and the independent rod 17, and is used to trigger the independent rod 17 in an operational manner, so that the independent rod 17 moves along the moving stroke to abut against and push the connecting member 16, so that the connecting member 16 abuts against and pushes the second piston rod body 14. In this embodiment, the first brake trigger device 3 is a left brake handle, and the second brake trigger device 2 is a right brake handle, but it is not limited thereto. In other embodiments of the present invention, the first brake trigger device 3 may also be a right brake handle, and the second brake trigger device 2 may be a left brake handle.

In this embodiment, the dual-cylinder linked brake distribution device 1 further includes a first elastic element 21 and a second elastic element 22. The first elastic element 21 is disposed between the first piston rod 13 and the first cylinder 11. The second elastic element 22 is disposed between the second piston rod 14 and the second cylinder 12. The first elastic element 21 may have a first elastic coefficient, and the second elastic element 22 may have a second elastic coefficient, wherein the first elastic coefficient and the second elastic coefficient may be the same or different.

In addition, the dual-cylinder linked brake distribution device 1 may also include a third elastic element (not shown) and a fourth elastic element (not shown). The third elastic element is disposed between the connecting rod 15 and the first piston rod 13, so it will be blocked by the first piston rod 13 and the connecting rod 15 in the diagram. The fourth elastic element is disposed between the connecting member 16 and the second piston rod 14. Because the aperture of the second rod hole H2 is smaller, the fourth elastic element is not drawn to avoid excessively disordered lines. However, through the above description, a person with ordinary knowledge in the relevant technical field should be able to easily understand the positions and functions of the third elastic element and the fourth elastic element.

Finally, please refer to Figures 3 to 7 together, among which Figure 5 is a schematic diagram showing the independent rod of the double-cylinder linked brake distribution device provided by the preferred embodiment of the present invention being triggered; and Figure 6 is a schematic diagram showing the connecting rod of the double-cylinder linked brake distribution device provided by the preferred embodiment of the present invention being triggered.

As shown in the fifth figure, when the second trigger assembly 19 is triggered by the second brake trigger device 2, the independent rod 17 will be triggered to move. The independent rod 17 will move along the moving stroke to abut against the arc profile portion 162 of the connecting member 16 and then push the connecting member 16. The moving stroke is shown in the figure as a stroke moving along a first direction D1. When the connecting member 16 continues to push and abuts against and pushes the second piston rod body 14, the second piston rod body 14 will move and close the second oil return port EX2 to squeeze the second brake oil to the second brake oil circuit, thereby driving the second brake device 4 and braking the front wheel. It should be noted that the independent rod 17 may abut against the connecting member 16 throughout the entire moving stroke, or may abut against the connecting member 16 during at least a portion of the moving stroke.

Because of the accommodation space S3, when the independent rod 17 has not yet abutted the connecting member 16, and the connecting member 16 has not yet abutted the second piston rod 14, the independent rod 17 will move relative to the second piston rod 14. After the independent rod 17 abuts the connecting member 16, the independent rod 17 will move together with the connecting member 16. When the connecting member 16 abuts the second piston rod 14, the independent rod 17 and the connecting member 16 will move together with the second piston rod 14. Because the connecting member 16 is located above the connecting rod 15, and the connecting rod 15 is located in the second through groove T2 of the second piston rod body 14, the connecting member 16 can abut and push the second piston rod body 14 alone, and will not push the connecting rod 15, and will not further push the first piston rod body 13. In other words, when a user operates the second brake trigger device 2, the second brake device 4 can be driven alone and only one wheel can be braked. In this embodiment, the front wheel is used as an example, but it is not limited to this. In other embodiments of the present invention, the second brake device 4 can also brake the rear wheel alone.

When the first trigger assembly 18 is triggered by the first brake trigger device 3, the linkage rod 15 is triggered to move. The linkage rod 15 moves along the first direction D1, as shown in FIG6. The linkage rod 15 abuts against and pushes the first piston rod body 13 and the second piston rod body 14, thereby causing the first piston rod body 13 and the second piston rod body 14 to move and close the first oil return port EX1 and the second oil return port EX2, respectively, so as to squeeze the first brake oil and the second brake oil to the first brake oil circuit and the second brake oil circuit respectively, thereby respectively driving the first brake device 5 and the second brake device 4, and braking the front wheel and the rear wheel. That is, when the user operates the first brake trigger device 3, the first brake device 5 and the second brake device 4 can be driven to brake the front and rear wheels, which complies with the specifications and relevant regulations of the combined braking system (CBS).

The position of the connecting member 16 in the second rod hole H2 can be compared with that in the fifth and sixth figures. In the fifth figure, the independent rod 17 abuts the connecting member 16, and the second piston rod 14 is abutted by the connecting member 16 to push the second piston rod 14. Therefore, the connecting member 16 is located on the side of the second rod hole H2 adjacent to the second cylinder 12. In the sixth figure, the connecting rod 15 directly abuts and pushes the second piston rod 14, rather than abutting the second piston rod 14 through the connecting member 16, so the connecting member 16 is located on the side of the second rod hole H2 adjacent to the connecting rod 15.

In addition, the first piston rod 13 is at a first sealing stroke distance from the first oil return port EX1 when it has not yet moved, and the second piston rod 14 is at a second sealing stroke distance from the second oil return port EX2 when it has not yet moved. The relationship between the first sealing stroke distance and the second sealing stroke distance can be used to adjust whether the front wheel or the rear wheel is braked first. For example, when the second sealing stroke distance is smaller than the first sealing stroke distance, when the second piston rod 14 closes the second oil return port EX2, the first piston rod 13 has not yet closed the first oil return port EX1, so the front wheel will be braked first. After the first piston rod 13 continues to move and closes the first oil return port EX1, the rear wheel will be braked. However, the time difference between the two is very small. In addition, the first sealing stroke distance and the second sealing stroke distance can also be matched with the first elastic coefficient and the second elastic coefficient to further control the braking force in addition to controlling the braking sequence.

Because in the present invention, there is no pivotal relationship between the connecting rod 15 and the second piston rod body 14, the connecting member 16 and the independent rod 17. Therefore, when the independent rod 17 abuts the connecting member 16 alone and then pushes the second piston rod body 14 alone to brake the front wheel, it will not drive the connecting rod 15 to move, so that only the front wheel can be braked. In addition, because of the abutting plane 161 and the arc-shaped profile 162 of the connecting member 16, the sensitivity of the independent rod 17 when abutting can be improved, and the front wheel can be braked surely. The connecting rod 15 can push against and push the first piston rod body 13 and the second piston rod body 14, thereby braking the front wheels and the rear wheels to comply with the specifications and relevant regulations of the linkage brake system.

In summary, the double-cylinder linked brake distribution device and system provided by the present invention utilizes an independent rod to independently push the connecting member to push the second piston rod body, thereby achieving the effect of independently driving the second brake device, and utilizes the linked rod to push the first piston rod body and the second piston rod body to achieve the effect of driving the first brake device and the second brake device, thereby complying with the specifications and relevant regulations of the linked brake system. Because there is no pivotal relationship between the connecting rod and the second piston rod body, the connecting member and the independent rod, and the independent rod has a housing space corresponding to the second piston rod body, the independent rod can move relative to the second piston rod body. When the independent rod abuts the connecting member alone and then pushes the second piston rod body alone to brake the front wheel, the connecting rod will not be driven to move, so it can be ensured that only the front wheel is braked. In addition, the abutting plane and arc-shaped contour of the connecting member can improve the sensitivity of the independent rod when abutting, and the front wheel is braked.

The above detailed description of the preferred specific embodiments is intended to more clearly describe the features and spirit of the present invention, but is not intended to limit the scope of the present invention by the preferred specific embodiments disclosed above. On the contrary, the purpose is to cover various changes and arrangements with equivalents within the scope of the patent application for the present invention.

100: Double-cylinder linked brake distribution system 1: Double-cylinder linked brake distribution device 11: First cylinder body 12: Second cylinder body 121: Main body 122: Side cover 13: First piston rod body 14: Second piston rod body 15: Linking rod 151: First pivot part 152: Second abutment part 153: Trigger connection part 16: Connecting part 161: Abutment plane 162: Arc profile part 17: Independent rod 171: First abutment part 18: First trigger assembly 19: Second trigger assembly 21: First elastic element 22: Second elastic element 2: Second brake trigger device 3: First brake trigger device 4: Second brake device 5: First brake device IN1: First oil inlet IN2: Second oil inlet D1: First direction EX1: First oil return port EX2: Second oil return port H1: First rod hole H2: Second rod hole H3: Hub hole OUT1: First oil outlet OUT2: Second oil outlet S1: First hydraulic space S2: Second hydraulic space S3: Accommodation space T1: First through groove T2: Second through groove T3: Side accommodation groove T4: Limit accommodation groove T5: Accommodation groove

The first figure is a schematic diagram showing the double-cylinder linked brake distribution device provided by the preferred embodiment of the present invention; The second figure is a three-dimensional diagram showing the first cylinder body and the second cylinder body of the double-cylinder linked brake distribution device provided by the preferred embodiment of the present invention; The third figure is a three-dimensional diagram showing the components of the first piston rod body, the second piston rod body, the connecting rod, the connecting member and the independent rod of the double-cylinder linked brake distribution device provided by the preferred embodiment of the present invention; The fourth figure is a three-dimensional diagram showing the assembly of the third figure; The fifth figure is a schematic diagram showing the independent rod of the double-cylinder linked brake distribution device provided by the preferred embodiment of the present invention being triggered; The sixth figure is a schematic diagram showing the linkage rod of the double-cylinder linkage brake distribution device provided by the preferred embodiment of the present invention being triggered; and the seventh figure is a schematic diagram showing the first figure applied to the double-cylinder linkage brake distribution system.

1: Double-cylinder linked brake distribution device

11: First cylinder

12: Second cylinder

13: First piston rod body

14: Second piston rod body

15: Linkage rod

16: Connectors

17: Independent rod

18: First trigger component

19: Second trigger component

21: First elastic element

22: Second elastic element

IN1: First oil inlet

IN2: Second oil inlet

EX1: First oil return port

EX2: Second oil return port

H1: First shaft hole

H2: Second rod hole

OUT1: First oil outlet

OUT2: Second oil outlet

S1: First hydraulic space

S2: Second hydraulic space

Claims (10)

A double-cylinder linked brake distribution device comprises: a first cylinder body having a first oil pressure space, a first oil return port and a first oil inlet port, for supplying a first brake oil to the first oil pressure space through the first oil inlet port; a first piston rod body movably arranged in the first cylinder body and partially extending out of the first cylinder body, for being operated to move and close the first oil return port to squeeze the first brake oil to a first brake oil circuit; a second cylinder body having a second oil pressure space, a second oil return port and a second oil inlet port, for supplying a second brake oil to the second oil pressure space through the second oil inlet port; a second piston rod body movably arranged in the second cylinder body , and partially extends out of the second cylinder body, used to be operated to move and close the second oil return port to squeeze the second brake oil to a second brake oil circuit; a connecting rod is movably connected to the first piston rod body and abuts against the second piston rod body; a connecting piece is movably inserted into a second rod body hole of the second piston rod body; an independent rod is set corresponding to the connecting piece, adjacent to the second cylinder body, and is operated to move along a moving stroke, and moves relative to the second piston rod body in part of the moving stroke; a first trigger assembly is connected to the connecting rod, used to be operated to trigger the connecting rod, so that the connecting rod pushes the first piston rod body and the second piston rod body; and A second trigger assembly is connected to the independent rod and is used to trigger the independent rod in an operational manner, so that the independent rod moves along the moving stroke to abut against and push the connecting member, thereby causing the connecting member to abut against and push the second piston rod body. The dual-cylinder linkage brake distribution device as described in claim 1 further comprises: a first elastic element disposed between the first piston rod and the first cylinder; and a second elastic element disposed between the second piston rod and the second cylinder. The double-cylinder linked brake distribution device as described in claim 1, wherein the linkage further comprises: a trigger connection portion connected to the first trigger assembly; a first pivot portion connected to the trigger connection portion, adjacent to and pivotally connected to the first piston rod body; and a second abutment portion connected to the trigger connection portion, adjacent to and abutting against the second piston rod body. A double-cylinder linked brake distribution device as described in claim 1, wherein the independent rod further includes a first abutment portion, the first abutment portion having an accommodation space corresponding to the second piston rod body, so that the independent rod moves relative to the second piston rod body during part of the movement stroke. A double-cylinder linked brake distribution device as described in claim 1, wherein the connecting member further has a top-pushing plane and an arc-shaped contour portion, the arc-shaped contour portion is adjacent to the independent rod for the independent rod to push against, and the top-pushing plane is far away from the independent rod for pushing against the second piston rod body after the independent rod pushes against the arc-shaped contour portion. A double-cylinder linked brake distribution device as described in claim 1, wherein the bottom of the first piston rod body is provided with a first through groove and a first rod body hole penetrating the first through groove, and the first through groove is used for movably setting the link rod. A two-cylinder linked brake distribution device as described in claim 6, wherein the connecting rod is provided with a pivot hole corresponding to the first rod body hole. As described in claim 1, the double-cylinder linked brake distribution device, wherein the bottom of the second piston rod body is provided with a second through groove, and the second through groove is used for movably setting the link rod. The double-cylinder linked brake distribution device as described in claim 1 further comprises: a third elastic element disposed between the connecting rod and the first piston rod body; and a fourth elastic element disposed between the connecting member and the second piston rod body. A two-cylinder linkage brake distribution system comprises: A first brake trigger device; A second brake trigger device; A first brake device connected to one of a first brake oil circuit and a second brake oil circuit; A second brake device connected to the other of the first brake oil circuit and the second brake oil circuit relative to the first brake device; and A two-cylinder linkage brake distribution device comprises: A first cylinder body having a first oil pressure space, a first oil return port and a first oil inlet port for supplying a first brake oil to the first oil pressure space through the first oil inlet port; A first piston rod body is movably disposed in the first cylinder body and partially extends out of the first cylinder body, and is used to be operated to move and close the first oil return port to squeeze the first brake oil to the first brake oil circuit; A second cylinder body has a second oil pressure space, a second oil return port and a second oil inlet port, and is used to supply a second brake oil to the second oil pressure space through the second oil inlet port; A second piston rod body is movably disposed in the second cylinder body and partially extends out of the second cylinder body, and is used to be operatively moved and closed to seal the second oil return port, so as to squeeze the second brake oil to the second brake oil circuit; a connecting rod is movably pivoted to the first piston rod body and abuts against the second piston rod body; a connecting piece is movably inserted into a second rod body hole of the second piston rod body; an independent rod is provided corresponding to the connecting piece, is adjacent to the second cylinder body and is operatively moved to close the second oil return port, so as to squeeze the second brake oil to the second brake oil circuit; Moves along a travel stroke and moves relative to the second piston rod body in part of the travel stroke; a first trigger assembly is connected to the connecting rod and is used to trigger the connecting rod in an operational manner, so that the connecting rod pushes the first piston rod body and the second piston rod body; and a second trigger assembly is connected to the independent rod and is used to trigger the independent rod in an operational manner, so that the independent rod moves along the travel stroke to abut and push the connecting member, so that the connecting member abuts and pushes the second piston rod body.

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