Combined brake device, brake system and vehicle

Abstract

The embodiment of the application provides a kind of combined brake device, brake system and vehicle, the device includes, shell;Rolling member is located in the shell;Elastic component is located in the shell, and is connected with rolling member;First hydraulic device is connected with rolling member;First connecting piece, it is through shell, and with rolling member sliding connection, by external force to drive first connecting piece movement to generate first brake force;When the force applied to elastic component by rolling member is greater than the holding force of elastic component, the second brake force is generated by rolling member to drive first hydraulic device.The embodiment of the application can avoid the problem of wheel lock, and also can realize simultaneous braking of front and rear wheels, convenient to use, to obtain satisfactory brake effect.

Description

TECHNICAL FIELD

[0001] The embodiments of the present application belong to the technical field of vehicle braking system, in particular to a combined braking device, a braking system and a vehicle. BACKGROUND

[0002] More and more vehicles become the favorite means of transportation for people. However, the braking of the vehicle becomes an important factor affecting its performance.

[0003] At present, if the speed is fast when the handle brake is used in most vehicles, a larger braking force is usually generated to act on the front wheel, which may cause the handle to lose control and make the vehicle lock.

[0004] In some cases, single-hand braking is unavoidable, and in this case, only the front wheel braking force acting easily leads to the vehicle lock, and only the rear wheel braking force acting also cannot obtain satisfactory braking effect. SUMMARY

[0005] The purpose of the embodiments of the present application is to provide a combined braking device, a braking system and a two-wheeled vehicle, which can not only avoid the problem of wheel lock when braking, but also can realize the simultaneous braking of the front and rear wheels, is convenient to use, and can obtain satisfactory braking effect, so as to solve the problems in the background art.

[0006] In order to solve the above technical problems, the technical scheme of the combined braking device, the braking system and the vehicle provided by the embodiments of the present application is as follows:

[0007] In a first aspect, the embodiments of the present application disclose a combined braking device, which comprises a housing.

[0008] A rolling member is located in the housing.

[0009] An elastic assembly is located in the housing and abuts against the rolling member.

[0010] A first hydraulic device is connected with the rolling member.

[0011] A first connecting member penetrates through the housing and is in sliding connection with the rolling member, and the first connecting member is driven to move by external force to generate a first braking force; when the force applied by the rolling member to the elastic assembly is greater than the holding force of the elastic assembly, the first hydraulic device is driven by the rolling member to generate a second braking force.

[0012] In the preferred embodiments of any of the above solutions, a slide channel is arranged on the periphery of the rolling member, and the first connecting member is in sliding connection with the slide channel.

[0013] In the preferred embodiments of any of the above solutions, the first hydraulic device comprises an adjusting mechanism and a piston rod, and the adjusting mechanism is arranged on the periphery of the piston rod and is used to adjust the initial stroke of the first hydraulic device.

[0014] In the preferred embodiment of any of the above solutions, a first fixing member is arranged on the housing, the elastic assembly comprises an elastic member and a second fixing member, the elastic member is arranged in the housing and connected to the first fixing member and the second fixing member at two ends respectively, and the second fixing member is connected to the rolling member. In the preferred embodiment of any of the above solutions, a through hole is arranged on the first fixing member, the piston rod of the first hydraulic device passes through the through hole and is movable in the through hole, and the elastic member is sleeved on the periphery of the piston rod.

[0015] In the preferred embodiment of any of the above solutions, the combined braking system further comprises a mounting shaft and a second connecting member.

[0016] The mounting shaft is arranged in the rolling member, the mounting shaft is connected to one end of the second connecting member, and the other end of the second connecting member is connected to the piston rod.

[0017] In the preferred embodiment of any of the above solutions, the second connecting member is in an N-shaped structure.

[0018] Compared with the prior art, the combined braking device of the embodiment of the application, the rolling member moves in the closed housing, under the action of an external force, the first connecting member slides in the sliding channel of the rolling member, the rolling member changes the direction of movement in the housing after receiving a reaction force, generates a thrust force on the elastic assembly, the elastic member is compressed, the piston rod in the first hydraulic device is pushed to move by the rolling member, the first hydraulic device generates a hydraulic pressure, the first brake generates a braking force through the hydraulic pressure, the elastic assembly plays a role of delaying the distribution of the external force to the first brake, and the braking distribution ratio of the first brake can be ensured, so that the application can not only avoid the problem of wheel lock of the vehicle, but also can realize simultaneous braking of the front and rear wheels of the vehicle, is convenient to use, and can obtain satisfactory braking effect, thereby solving the problems in the background art.

[0019] In a second aspect, the embodiment of the application further provides a combined braking system, comprising the combined braking device of the first aspect, the combined braking system further comprising a first brake handle or a brake pedal, a first brake and a second brake.

[0020] The first hydraulic device is connected to the first brake through a first oil pipe, one end of the first connecting member of the first brake is connected to the second brake, and the other end is connected to the first brake handle or the brake pedal.

[0021] In a third aspect, the embodiment of the application further provides a braking system, comprising the combined braking system of the second aspect; the braking system further comprises a second brake handle and a second hydraulic device.

[0022] The second brake handle is connected with the second hydraulic device, the second hydraulic device is connected with the first brake through the second oil pipe, and the brake force is generated on the first brake through the external force provided by the second brake handle. Compared with the prior art, the third aspect of the present application provides two sets of brake systems, and the two sets of brake systems are independent of each other and will not affect each other. The brake system composed of the second brake handle and the second hydraulic device mainly generates brake force on the front wheel and does not generate brake effect on the rear wheel.

[0023] In the fourth aspect, the vehicle provided by the embodiment of the present application comprises the brake system. In the embodiment of the present application, the vehicle can be an electric vehicle or a motorcycle, etc. The electric vehicle can be a two-wheeled electric vehicle or a three-wheeled electric vehicle. The motorcycle can be a two-wheeled motorcycle or a three-wheeled motorcycle. When the brake system is installed on the electric vehicle or the motorcycle, the front and rear wheels of the electric vehicle or the motorcycle can be simultaneously braked, so that the problems such as wheel lock of the electric vehicle or the motorcycle can be avoided. BRIEF DESCRIPTION OF DRAWINGS

[0024] The accompanying drawings, which are included to provide a further understanding of the present application, constitute a part of the present application, the schematic embodiments of the present application and the description thereof serve to explain the present application, and do not constitute an improper limitation on the present application. Some specific embodiments of the present application will be described in detail hereinafter with reference to the accompanying drawings in an exemplary and non-limiting manner. The same reference signs in the drawings indicate the same or similar components or parts, and it should be understood by those skilled in the art that the drawings are not necessarily drawn to scale. In the drawings:

[0025] Figure 1 FIG. 1 is a structural schematic diagram of a combined brake device according to an embodiment of the present application;

[0026] Figure 2 FIG. 2 is a structural schematic diagram of a second fixing member of the combined brake device according to the embodiment of the present application;

[0027] Figure 3 FIG. 3 is a structural schematic diagram of a shell of the combined brake device according to the embodiment of the present application.

[0028] Figure 4 FIG. 4 is a schematic diagram of a preferred embodiment of the combined brake device according to the embodiment of the present application;

[0029] Figure 5 FIG. 5 is a schematic diagram of another preferred embodiment of the combined brake device according to the embodiment of the present application.

[0030] Figure 6 FIG. 6 is a structural schematic diagram of the combined brake device according to the embodiment of the present application; Figure 5 FIG. 7 is a structural schematic diagram of the combined brake device according to the embodiment of the present application, in which the piston rod and the second connecting member are removed.

[0031] Figure 7 FIG. 8 is a structural schematic diagram of the combined brake device according to the embodiment of the present application, in which the piston rod and the second connecting member are removed.Figure 5 Schematic view of the connection structure of the piston rod, the second connecting member, the rolling member and the mounting shaft;

[0032] Figure 8 A schematic view of a brake system according to an embodiment of the present application.

[0033] 1, housing; 111, first U-shaped groove; 112, limiting slide; 113, screw hole; 114, second U-shaped groove; 115, second fixing member; 2, first connecting member; 3, screw; 4, elastic assembly; 41, through hole; 115, first fixing member; 43, elastic member; 44, second fixing member; 5, rolling member; 51, slide; 6, first hydraulic device; 61, adjusting mechanism; 62, piston rod; 7, third connecting member; 8, second connecting member; 9, first brake handle; 10, brake pedal; 11, second brake handle; 12, brake drum cover assembly; 13, brake caliper; 14, brake disc; 15, first oil pipe; 16, second oil pipe. DETAILED DESCRIPTION

[0034] In order to make the personnel in the technical field better understand the scheme of the present application, the technical scheme in the embodiments of the present application will be clearly and completely described below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor should belong to the scope of protection of the present application.

[0035] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0036] In the description of the present application, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0037] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0038] The following embodiments of this application use a vehicle with front wheels and rear wheels as an example to illustrate the solution of this application in detail. However, this embodiment does not limit the scope of protection of this application.

[0039] Example 1

[0040] Firstly, such as Figure 1 As shown, this application embodiment provides a combined braking device, comprising a housing 1; a rolling element 5 located within the housing 1; an elastic component 4 located within the housing 1 and abutting against the rolling element 5; a first hydraulic device 6 connected to the rolling element 5; and a first connecting member 2 penetrating the housing 1 and slidably connected to the rolling element 5. An external force drives the first connecting member 2 to move, thereby generating braking force on the rear wheels. When the force exerted by the rolling element 5 on the elastic component 4 is greater than the holding force of the elastic component 4, the rolling element 5 drives the first hydraulic device 6 to generate braking force on the front wheels.

[0041] In this embodiment, the first connecting member 2 is a long strip structure, preferably a cable. In use, the elastic component 4 is disposed inside the housing 1 and abuts against the rolling component 5. Under the action of external force, the first connecting member 2 is pulled to drive the rolling component 5 to slide within the housing. The external force drives the first connecting member 2 to move and generate braking force on the rear wheel. When the force applied by the rolling component 5 to the elastic component 4 is greater than the holding force of the elastic component 4, the rolling component 5 drives the first hydraulic device 6 to generate braking force on the front wheel. Therefore, when braking, not only can the problem of wheel lock-up be avoided, but also the front and rear wheels can be braked simultaneously, which is convenient to use and achieves satisfactory braking effect.

[0042] like Figure 1 As shown, a slide rail 51 is provided around the rolling element 5, and the first connecting member 2 is slidably connected to the slide rail 51. In this embodiment, the slide rail 51 and the rolling element 5 are integrally formed, which can make its structure more robust. Furthermore, a mounting hole penetrating the rolling element 5 is provided in the middle of the rolling element 5. In this embodiment, the rolling element 5 is a roller.

[0043] like Figures 1 to 4As shown, the housing 1 is provided with a first fixing member 115, the elastic assembly 4 comprises an elastic member 43 and a second fixing member 44; the elastic assembly 4 comprises the elastic member 43 and the second fixing member 44; the two ends of the elastic member 43 are respectively abutted with the first fixing member 115 and the second fixing member 44, the first fixing member 115 is connected with one end of the housing 1, the first fixing member 115 is connected with one end of the housing 1, the second fixing member 44 is connected with the rolling member 5, and the second fixing member 44 moves along the movement direction of the elastic member 43.

[0044] In the embodiment, the elastic member 43 has elasticity, can be deformed when subjected to force, and can restore to normal state when losing external force, preferably the elastic member 43 is a spring, and the first connecting member 2 has a certain delay to the acting force of the first hydraulic device 6 through the action of the elastic member 43.

[0045] The first fixing member 115 is a cover-shaped structure, the housing 1 and the first fixing member 115 are connected through the screw 3, so that the housing 1 and the first fixing member 115 can be conveniently disassembled and fixed, when assembled, one end of the second fixing member 44 is inserted into one end of the elastic member 43, so that the second fixing member 44 can play a positioning role to avoid the elastic member 43 from being dislocated or displaced when subjected to force, the other end of the elastic member 43 is abutted with the first fixing member 115, so that the position of the elastic member 43 can be limited, under the action of external force, the first connecting member 2 is pulled, the first connecting member 2 is slidably connected with the rolling member 5, so that the first connecting member 2 can drive the rolling member 5 to move in the housing 1, under the action of external force, when the acting force of the rolling member 5 on the elastic assembly 4 is greater than the holding force of the elastic assembly 4, the elastic member 43 is compressed, when losing external force, the elastic member 43 restores to the original state, the elastic member 43 pushes the second fixing member 44 and the rolling member 5 to move in the opposite direction, so that the elastic member 43 restores to the original state, and the first hydraulic device 6 no longer generates braking force on the front wheel.

[0046] In the embodiment of the application, as shown in the figure, Figure 2 As shown in the figure, the second fixing member 44 is a T-shaped structure, and the elastic member 43 is sleeved on the protruding structure of the T-shaped structure.

[0047] As shown in the figure, Figure 1 , 3 As shown in the figure, the housing 1 comprises a threaded hole 113, the threaded hole 113 is arranged on the housing 1, the first fixing member 115 is connected with the housing 11 through the screw 3, the screw 3 passes through the first fixing member 115 and is connected with the threaded hole 113 on the housing 11, so that the housing 11 and the first fixing member 115 are fixed, and the housing 11 and the first fixing member 115 can be conveniently disassembled and assembled.

[0048] As shown in the figure, Figure 1 , Figure 3As shown, the shell 1 is provided with a limiting portion, the rolling member 5 and the second fixing member 44 are installed in the limiting portion, the limiting portion comprises a first U-shaped groove 111 and a second U-shaped groove 114, the first U-shaped groove 111 and the second U-shaped groove 114 are arranged on the shell 11, the first connecting member 2 penetrates through the first U-shaped groove 111, the second fixing member 44 is arranged in the first U-shaped groove 111, the rolling member 5 is arranged in the second U-shaped groove 114, when the first connecting member 2 is subjected to a pulling force, the first connecting member 2 and the rolling member 5 form a sliding connection, and drive the rolling member 5 to slide in the second U-shaped groove 114, in the embodiment of the application, the first U-shaped groove 111 and the second U-shaped groove 114 are integrally formed with the shell 11, so that the structure is more firm, the width of the rolling member 5 is greater than the width of the second U-shaped groove 114, and the outer diameter of the sliding channel 51 is greater than the width of the first U-shaped groove 111, so that deviation or roller displacement is not caused in use.

[0049] As shown in the drawings, Figure 4 In the embodiment of the application, the first hydraulic device comprises an adjusting mechanism 61 and a piston rod 62, the adjusting mechanism 61 is arranged on the periphery of the piston rod 62, and is used for adjusting the initial stroke of the first hydraulic device, and the piston rod 62 in the first hydraulic device 6 is driven to move by the movement of the rolling member 5.

[0050] The first fixing member 115 is provided with a through hole 41, the piston rod 62 penetrates through the through hole 41 and is movable in the through hole 41, and the elastic member 43 is sleeved on the periphery of the piston rod 62 and abuts against the first fixing member 115 and the second fixing member 44 at both ends.

[0051] In the embodiment of the application, one end of the piston rod 62 penetrates through the through hole 41 and the elastic member 43, and is connected with the second fixing member 44, so that when the rolling member 5 extrudes the second fixing member 44, the second fixing member 44 extrudes the elastic member 43 on one hand, so that the elastic member 43 is deformed, and extrudes one end of the piston rod 62 on the other hand, so that the first hydraulic device 6 generates a hydraulic pressure, the hydraulic pressure is transmitted to the first brake 13 through the first front oil pipe 15, the piston in the first brake 13 and the brake disc 14 are extruded, and a braking force is provided, in the embodiment of the application, the first brake 13 is a front brake, and the front brake is used for generating a braking force on the front wheel of the vehicle, so that when the brake is used, the problem of wheel lock of the vehicle can be avoided, and the simultaneous braking of the front wheel and the rear wheel can be realized, the use is convenient, and a satisfactory braking effect can be obtained.

[0052] As shown in the drawings, Figure 1 , Figure 3 and Figure 4As shown, the combined brake device further comprises a limiting slide 112 in the first U-shaped slot 111, and the limiting slide 112 is arranged in the shell 1 to realize that the outer edge of the second fixing member 44 abuts against the limiting slide 112, the limiting slide 112 is integrally formed with the shell 1, when the second fixing member 44 is installed in the first U-shaped slot 111, the outer edge of the second fixing member 44 is embedded in the four limiting slides 112, the second fixing member 44 can move up and down in the limiting slide 112, and the position of the second fixing member 44 is limited, so that the second fixing member 44 is prevented from deviating.

[0053] When using the embodiments of the present application, as Figure 8 As shown, initially, the brake pedal 10 or the first brake handle 9 is directly connected to the second brake through the first connecting member 2, at this time, the elastic member 43 in the combined brake device has a force greater than the sum of the input force of the rear brake pedal 10 or the first brake handle 9 and the holding force of the brake return elastic member, and the rolling member 5 in the combined brake device is not moved, the first hydraulic device 6 generates hydraulic pressure and does not transmit the brake force to the first brake, the rear wheel is braked, and the front wheel is not braked. Continue to apply the input force to the brake pedal 10 or the first brake handle 9, the first connecting member 2 is affected by the action force and the reaction force, and applies pressure to the second fixing member 44 in the combined brake device, when the applied pressure is greater than the holding force of the elastic member 43, the piston rod 62 of the first hydraulic device is pushed, the first hydraulic device 6 generates hydraulic pressure, and the first hydraulic device 6 transmits the hydraulic pressure to the first brake to provide brake force for the front wheel, so that the front and rear combined braking is realized. In the embodiments of the present application, the brake pedal 10 is used to generate brake force for the rear wheel, and the first brake handle 9 is a rear brake handle. In the embodiments of the present application, the first brake is a front brake used to generate brake force for the front wheel, and the second brake is a rear brake used to generate brake force for the rear wheel.

[0054] Embodiment 2

[0055] As shown in Figure 5 , Figure 6 and Figure 7 The difference between embodiment 2 and embodiment 1 is that the first fixing member 115 in the elastic assembly 4 is not provided with the through hole 41.

[0056] In the embodiment, the combined brake device further comprises a mounting shaft 7 and a second connecting member 8; the mounting shaft 7 is arranged in the rolling member 5, the mounting shaft 7 is connected with one end of the second connecting member 8, the other end of the second connecting member 8 is connected with the piston rod 62, the second connecting member 8 is connected with the rolling member 5 through the mounting shaft 7, the second connecting member 8 is an N-shaped plate, the adjusting mechanism 61 is an adjusting nut, the second connecting member 8 is sleeved outside the shell 1, the mounting shaft 7 penetrates the middle part of the rolling member 5 and one end of the second connecting member 8, the piston rod 62 penetrates one end of the second connecting member 8, and one adjusting mechanism 61 is arranged on each side of the second connecting member 8, and the initial stroke of the first hydraulic device can be adjusted by rotating the adjusting nut 61; when assembling, the second connecting member 8 is sleeved outside the shell 1, the mounting shaft 7 penetrates the middle part of the rolling member 5 and one end of the second connecting member 8 to fix one end of the second connecting member 8.

[0057] When the embodiments of the present application are used, as shown in Figure 8 When the embodiments of the present application are used, as shown in When the embodiments of the present application are used, as shown in

[0058] In the embodiments 1 and 2 of the present application, when the front and rear wheels are braked at the same time, the rolling member 5 in the combined brake device is pulled, as shown in Figure 3As shown, the second U-shaped groove 114 in the housing 1 changes the direction of the movement of the rolling member 5, and the rolling member 5 converts the circular motion into left-right linear motion, so that the elastic member 43 is compressed by the resistance and drives the piston rod 62 to move, and the brake pedal or the first brake handle 9 is transmitted to the combined brake device through the brake force, and at the same time, two components (F1 and F2) are generated, F1 is transmitted to the first connecting member 2 through the slide 51 in the combined brake device, and drives the rear wheel emergency brake, and F2 is compressed by the elastic member 43 when the rolling member 5 is subjected to the transverse thrust converted by F1, and drives the piston rod 62 to work, and the first hydraulic device 6 generates hydraulic pressure through the movement of the piston rod 62, and further generates the braking force for the front wheel.

[0059] In a second aspect, the application provides a combined brake system, comprising the combined brake device of the first aspect, and further comprising a first brake handle 9 or a brake pedal 10, a first brake and a second brake; the first hydraulic device 6 is connected with the first brake through a first oil pipe 15, and the first brake is connected with the front wheel; one end of the first connecting member 2 is connected with the rear wheel through the second brake, and the other end is connected with the first brake handle 9 or the brake pedal 10; in the embodiment of the application, the first brake is a front brake, which is used to generate braking force for the front wheel; and the second brake is a rear brake, which is used to generate braking force for the rear wheel. Figure 8 In the embodiment of the application, the first brake comprises a brake caliper 13 and a brake disc 14, the first hydraulic device 6 is connected with the front brake caliper 13 through the first oil pipe 15, the brake caliper 13 is connected with the brake disc 14, and the brake disc 14 is connected with the front wheel; after the brake caliper 13 and the brake disc 14 are extruded, braking force is provided for the front wheel system; the second brake is a brake drum cover assembly 12, the brake drum cover assembly 12 is connected with the first brake handle 9 or the brake pedal 10 through the first connecting member 2, and the brake drum cover assembly 12 is used to generate braking force for the rear wheel.

[0060] When the embodiment of the application is used, by operating the extrusion of the first brake handle 9 or the pedal of the brake pedal 10, the first brake handle 9 or the brake pedal 10 pulls the first connecting member 2, and the first connecting member 2 is in sliding connection with the slide 51.

[0061] In a third aspect, the application provides a combined brake device, comprising a housing 1, a first connecting member 2, a second connecting member 3, a first hydraulic device 6, a second hydraulic device 7, a first brake handle 9 or a brake pedal 10, a first brake and a second brake; the first connecting member 2 is connected with the second connecting member 3 through the housing 1, and the first connecting member 2 is connected with the first brake handle 9 or the brake pedal 10 through the second connecting member 3; the first brake handle 9 or the brake pedal 10 is connected with the first brake through the first connecting member 2, and the first brake is connected with the second brake through the second connecting member 3; the first hydraulic device 6 is connected with the first brake through a first oil pipe 15, and the second hydraulic device 7 is connected with the second brake through a second oil pipe 16.

[0062] Figure 8 ​As shown, the application also provides a brake system, which comprises the combined brake system of the first aspect; the brake system further comprises a second brake handle 11 and a second hydraulic device; the second brake handle 11 is connected with the second hydraulic device, and the second hydraulic device is connected with the first brake through a second oil pipe 16; when in use, by controlling the second brake handle 11, the second brake handle 11 drives the second hydraulic device to generate hydraulic pressure, and the second hydraulic device transmits the hydraulic pressure to the first brake through the second oil pipe 16, so as to realize front wheel braking; when the second brake handle 11 is operated (squeezed), the second hydraulic device generates hydraulic pressure, and the hydraulic pressure is transmitted to the brake caliper 13 through the second oil pipe 16; after the piston in the brake caliper 13 and the brake disc 14 are squeezed, braking force is provided for the front wheel system, and the braking force of the front wheel is proportional to the pressure applied by the second brake handle 11, and the proportion is set through the lever ratio of the second brake handle 11 and the piston ratio in the brake caliper 13. The brake process of the second brake handle 11 is only for the front wheel, and does not produce braking force for the rear wheel. The combined brake system of the application can produce braking force for the front wheel and the rear wheel, and only has a delay for the braking of the front wheel through the setting of the elastic component. In the embodiment of the application, the second brake handle 11 is a front wheel brake handle.

[0063] In a fourth aspect, a vehicle comprises the brake system, wherein in the embodiment of the application, the vehicle can be an electric vehicle or a motorcycle, etc., wherein the electric vehicle can be a two-wheeled electric vehicle or a three-wheeled electric vehicle, and the motorcycle can be a two-wheeled motorcycle or a three-wheeled motorcycle; when the brake system is installed on the electric vehicle or the motorcycle, the front and rear wheels of the electric vehicle or the motorcycle can be simultaneously braked, so as to avoid problems such as wheel lock of the electric vehicle or the motorcycle.

[0064] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the application, and not to limit them; although the application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the application.

Claims

1. A combined brake device characterized by comprising: The utility model relates to a combined brake device, which comprises a shell, a rolling element, an elastic component, a first hydraulic device and a first connecting element. The rolling element is located in the shell. The elastic component is located in the shell and connected with the rolling element. The first hydraulic device is connected with the rolling element. The first connecting element penetrates the shell and is in sliding connection with the rolling element. When the force applied by the rolling element to the elastic component is greater than the holding force of the elastic component, the first hydraulic device is driven by the rolling element to generate a second braking force. The rolling element is provided with a slide way. The first hydraulic device comprises an adjusting mechanism and a piston rod. The adjusting mechanism is arranged on the periphery of the piston rod and used for adjusting the initial stroke of the first hydraulic device. The shell is provided with a first fixing element. The elastic component comprises an elastic element and a second fixing element. The elastic element is arranged in the shell and connected with the first fixing element and the second fixing element at both ends respectively. The second fixing element is connected with the rolling element.

2. The combined brake device according to claim 1, characterized by The first fixing element is provided with a through hole.

3. A combined brake system characterized by, The piston rod of the first hydraulic device penetrates the through hole and can move in the through hole. The elastic element is sleeved on the periphery of the piston rod.

4. A brake system characterized by, The combined brake device further comprises a mounting shaft and a second connecting element. The mounting shaft penetrates the rolling element.

5. A vehicle characterized by comprising: One end of the second connecting element is connected with the mounting shaft, and the other end of the second connecting element is connected with the piston rod. The second connecting element has an N-shaped structure. The combined brake system further comprises a first brake handle or a brake pedal, a first brake and a second brake. The first hydraulic device is connected with the first brake through a first oil pipe. One end of the first connecting element is connected with the second brake, and the other end of the first connecting element is connected with the first brake handle or the brake pedal. The brake system further comprises a second brake handle and a second hydraulic device. The second brake handle is connected with the second hydraulic device. The second hydraulic device is connected with the first brake through a second oil pipe. An external force provided by the second brake handle only generates a braking force on the first brake. The brake system comprises the combined brake device according to claim 3 or 4.

Images