Braking device for electric four-wheeled vehicle

Abstract

The present invention discloses a brake device for an electric four-wheel vehicle, belonging to the field of automobile brakes. The brake device comprises two symmetrically arranged tires, one side of each tire being fixedly connected to a wheel hub, a suspension frame being provided between the two tires, and the outer surface of the suspension frame being symmetrically fixedly connected to two mounting blocks; the present invention is configured by a piston cylinder, a piston head, a pressure rod, a top cover, a lower pressure plate, a return spring, and an oil inlet pipe, so that when the driver steps on the foot brake, the brake fluid in the piston cylinder can be transferred to the fixed cylinder, and the fixing plate, the fixing cylinder, the piston disc, the connecting rod, the arc strip, and the brake pad cooperate with each other, and after the piston disc is acted upon by the brake fluid, the connecting rod and the brake pad are driven close to the corresponding wheel hub, and the interaction between the brake pad and the fixing plate is used to brake the tires and the wheel hub. This design can simultaneously brake both tires.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile brakes, and in particular to a brake device for an electric four-wheeled vehicle. Background Art

[0002] Electric four-wheeled vehicles are four-wheeled vehicles powered by electricity. Most of them are park sightseeing vehicles, scooters for the elderly, and scooters for the disabled. In order to improve the safety of electric four-wheeled vehicles when they are used, when the electric four-wheeled vehicle is traveling too fast, it can be slowed down by the brake device installed on the vehicle body, thereby reducing safety traffic accidents.

[0003] In the prior art, the braking system of four-wheel electric vehicles generally adopts rear-wheel mechanical brakes (hub brakes) or rear-wheel hydraulic brakes (oil brakes). There are also cases where all four wheels adopt hydraulic brakes. At the moment of stepping on the foot brake, the pressure is transmitted to the brake fluid on the chassis, and the high-pressure brake fluid acts on the brake pads on the wheels through the brake pipes, and the brake pads are activated and work. However, when this type of braking device is in use, the heat is not easy to dissipate quickly after the brake pads and the wheel hub rub at high speed, resulting in the brake pads being easily damaged due to excessive temperature after long-term use, making the replacement efficiency of the brake pads high. For this reason, we propose an electric four-wheel vehicle braking device. Summary of the Invention

[0004] The purpose of the present invention is to solve the problem in the prior art that after the brake pads and the wheel hub rub at high speed, the heat is not easy to dissipate quickly, resulting in the brake pads being easily damaged due to excessive temperature after long-term use, making the brake pad replacement efficiency low. A brake device for an electric four-wheeled vehicle is proposed.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] The brake assembly comprises two symmetrically arranged tires, one side of each of the tires being fixedly connected to a wheel hub, a suspension frame being provided between the two tires, the outer surface of the suspension frame being symmetrically fixedly connected to two mounting blocks, and two brake assemblies being symmetrically provided on the suspension frame, the brake assembly comprising a first mounting shell provided on one side of the wheel hub, the outer surface of the suspension frame being detachably connected to the second mounting shell by screws, the outer surface of the first mounting shell being fixed with a circular slot head, and one side of the second mounting shell being fixed with a mounting rod, the mounting rod sliding in the corresponding circular slot head, the end of the mounting rod extending from the circular slot head being threadedly connected with a nut, the brake assembly is provided with a braking mechanism for slowing down the rotation speed of the tires, the tires are also provided with a pressure supply mechanism for driving the brake mechanism to operate, the tops of the two mounting blocks are fixed with a support bar, one end of the support bar is fixed with a circular shell, the pressure supply mechanism is linked with a blowing device for accelerating the heat dissipation speed of the brake mechanism through a connecting assembly, and the connecting assembly is installed in the circular shell.

[0007] Preferably, the braking mechanism includes a fixing plate fixedly connected to a side of the first mounting shell close to the wheel hub, a fixing cylinder fixedly connected to one side of the second mounting shell, a piston in the fixing cylinder connected to a piston disk, a connecting rod fixedly connected to one side of the piston disk, the connecting rod slides through the second mounting shell, one end of the connecting rod is fixedly connected to an arc strip, and the brake pad is fixedly connected to the side of the arc strip close to the wheel hub.

[0008] Preferably, the pressure supply mechanism has two piston cylinders rotatably connected to the suspension frame through a rotating shaft, and the two piston cylinders are symmetrically arranged, and the pistons in the piston cylinders are connected to piston heads, and the tops of the piston heads are fixedly connected to pressure rods, and the tops of the pressure rods are fixedly connected to top covers, and the tops of the two top covers are rotatably connected to lower pressure plates through a rotating shaft, and the outer surface of the pressure rod is sleeved with a return spring, and the two ends of the return spring are fixedly connected to the piston cylinder and the top cover respectively, and the outer surface of the piston cylinder is connected to an oil inlet pipe, and the other end of the oil inlet pipe is connected to the fixed cylinder.

[0009] Preferably, the connecting assembly includes a connecting rack fixedly connected to the bottom of the lower pressure plate, the outer surface of the connecting rack is meshed with a connecting gear, and the axis of the connecting gear is fixedly connected to a rotating rod, and the rotating rod is rotatably connected to the circular shell through a bearing, the outer surface of the rotating rod is fixedly connected to a rotating bar, and one side of the rotating bar is rotatably connected to a circular gear through a rotating shaft, and the inner wall of the circular shell is fixed with a connecting limiting tooth, the circular gear is meshed with the limiting tooth, one side of the circular gear is fixedly connected to a rectangular bar, and one side of the rectangular bar is fixedly connected to a driving rod, and the outer surface of the rotating rod is also fixedly connected to an extrusion bar, and a limiting groove is provided on the extrusion bar, and the driving rod slides inside the limiting groove.

[0010] Preferably, the blowing device includes two chassis symmetrically fixedly connected to one side of the tire, the top of the chassis is fixedly connected to an extrusion cylinder, the inside of the extrusion cylinder is provided with a sliding rod for piston movement, the top of the sliding rod is fixedly connected to a top plate, the outer surface of the extrusion cylinder is sleeved with a compression spring, the two ends of the compression spring are respectively fixedly connected to the chassis and the top plate, the top of the top plate is fixedly connected to a fixing plate, the fixing plate is located directly below the extrusion strip, one side of the second mounting shell is connected to a blower cylinder, and an air inlet pipe is connected between the blower cylinder and the extrusion cylinder.

[0011] Preferably, a mounting hole for screwing in is provided in the middle of each mounting block.

[0012] Preferably, one end of the driving rod is fixedly connected to a limiting head, and the diameter of the limiting head is greater than the width of the limiting groove.

[0013] Preferably, the outer surface of the piston cylinder is connected with an oil filling port and an oil outlet in sequence from top to bottom.

[0014] Compared with the prior art, the present invention provides a brake device for an electric four-wheeled vehicle, which has the following beneficial effects:

[0015] 1. The electric four-wheeled vehicle brake device is configured with a piston cylinder, a piston head, a pressure rod, a top cover, a lower pressure plate, a return spring, and an oil inlet pipe. When the driver steps on the foot brake, the brake fluid in the piston cylinder can be transferred to the fixed cylinder. Through the mutual cooperation among the fixed plate, the fixed cylinder, the piston disc, the connecting rod, the arc-shaped strip, and the brake pad, after the piston disc is acted upon by the brake fluid, the connecting rod and the brake pad are driven close to the corresponding wheel hub. Through the interaction between the brake pad and the fixed plate, the tire and wheel hub are braked. This design can brake two tires synchronously at the same time, thereby enhancing the braking effect and improving safety performance.

[0016] 2. The electric four-wheel vehicle brake device is configured to connect the rack, the connecting gear, the rotating rod, the rotating bar, the circular gear, the limiting teeth, the rectangular bar, the driving rod, the extruding bar, the limiting groove and the circular shell. When the lower pressure plate is affected by the foot brake and moves downward, the driving force of the downward movement is utilized to synchronously drive the blowing device to operate. This design effectively utilizes the driving force generated by the pressure supply mechanism, and there is no need to install a separate driving device to drive the blowing device to operate, thereby enhancing the linkage effect. In addition, through the mutual cooperation between the chassis, the extruding cylinder, the sliding rod, the top plate, the compression spring, the fixing plate, the blowing cylinder and the air intake pipe, the brake pads can be blown while the braking mechanism and the pressure supply mechanism are braking, so as to quickly dissipate the heat caused by the friction between the brake pads and the wheel hub, thereby avoiding damage to the brake pads due to excessive temperature after long-term use, and reducing the number of times the brake pads are replaced.

[0017] The parts not involved in this device are the same as the existing technology or can be implemented by using the existing technology. The present invention can brake two tires synchronously at the same time, enhance the braking effect, and improve safety performance. At the same time, when the braking mechanism and the pressure supply mechanism are braking, the brake pads can be blown to quickly dissipate the heat generated by the friction between the brake pads and the wheel hub, thereby avoiding damage to the brake pads due to excessive temperature after long-term use, and reducing the number of times the brake pads are replaced. Moreover, the start-up of the blowing device is driven by the driving force generated when the pressure supply mechanism is in operation, and there is no need to install a separate driving device to drive the blowing device to operate, thereby enhancing the linkage effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of a brake device for an electric four-wheeled vehicle proposed by the present invention from a main perspective;

[0019] Figure 2 This is a schematic diagram of the structure of a brake device for an electric four-wheeled vehicle proposed by the present invention from a front view;

[0020] Figure 3 The present invention proposes an electric four-wheel vehicle brake device Figure 2 A schematic diagram of the structure at center A;

[0021] Figure 4 This is a schematic structural diagram of a pressure supply mechanism for a brake device for an electric four-wheeled vehicle proposed by the present invention;

[0022] Figure 5 This is a schematic structural diagram of a brake assembly of an electric four-wheeled vehicle brake device proposed by the present invention;

[0023] Figure 6 This is a schematic diagram of the brake mechanism structure of a brake device for an electric four-wheeled vehicle proposed by the present invention;

[0024] Figure 7This is a rear view schematic diagram of a circular housing structure of a brake device for an electric four-wheeled vehicle proposed by the present invention;

[0025] Figure 8 This is a schematic diagram of the internal structure of a circular shell of an electric four-wheel vehicle brake device proposed by the present invention.

[0026] In the figure: 1. Tire; 2. Wheel hub; 3. Suspension frame; 4. Mounting block; 5. Brake assembly; 501. First mounting housing; 502. Second mounting housing; 503. Round slot head; 504. Mounting rod; 505. Nut; 6. Braking mechanism; 601. Fixing plate; 602. Fixing cylinder; 603. Piston disc; 604. Connecting rod; 605. Arc strip; 606. Brake pad; 7. Pressure supply mechanism; 701. Piston cylinder; 702. Piston head; 703. Pressure rod; 704. Top cover; 705. Lower pressure plate; 706. Return spring; 707. Oil inlet pipe; 8. Support bar; 9. Round housing ; 10. Connecting assembly; 1001. Connecting rack; 1002. Connecting gear; 1003. Rotating rod; 1004. Rotating bar; 1005. Circular gear; 1006. Limiting tooth; 1007. Rectangular bar; 1008. Driving rod; 1009. Extrusion bar; 1010. Limiting groove; 11. Blowing device; 1101. Chassis; 1102. Extrusion cylinder; 1103. Sliding rod; 1104. Top plate; 1105. Compression spring; 1106. Fixed plate; 1107. Blowing cylinder; 1108. Air inlet pipe; 12. Mounting hole; 13. Limiting head; 14. Oil filling port; 15. Oil outlet. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0028] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0029] Example 1:

[0030] Reference Figures 1-8A brake device for an electric four-wheeled vehicle includes two symmetrically arranged tires 1, one side of each tire 1 is fixedly connected to a wheel hub 2, a suspension frame 3 is provided between the two tires 1, the outer surface of the suspension frame 3 is symmetrically fixedly connected to two mounting blocks 4, and two brake assemblies 5 are symmetrically provided on the suspension frame 3. The brake assembly 5 includes a first mounting shell 501 provided on one side of the wheel hub 2, the outer surface of the suspension frame 3 is detachably connected to the second mounting shell 502 by screws, the outer surface of the first mounting shell 501 is fixed with a circular groove head 503, and one side of the second mounting shell 502 is fixed with a mounting rod 504, which slides on the mounting rod 504. In the corresponding circular slot head 503, the end of the mounting rod 504 extending out of the circular slot head 503 is threadedly connected with a nut 505. The brake assembly 5 is provided with a braking mechanism 6 for slowing down the rotation speed of the tire 1. The tire 1 is also provided with a pressure supply mechanism 7 for driving the braking mechanism 6 to operate. A support bar 8 is fixed to the top of the two mounting blocks 4, and a circular shell 9 is fixed to one end of the support bar 8. The pressure supply mechanism 7 is linked to a blowing device 11 for accelerating the heat dissipation speed of the braking mechanism 6 through a connecting assembly 10. The connecting assembly 10 is installed in the circular shell 9, and a mounting hole 12 for screwing in is provided in the middle of the mounting block 4.

[0031] In the present invention, when the brake device is in use, the screws are screwed into the corresponding mounting holes 12, and the mounting block 4 is fixedly mounted on the base of the electric four-wheeled vehicle, thereby fixing the suspension frame 3. During installation, the first mounting shell 501 is set on the left side of the wheel hub 2, and the second mounting shell 502 is set on the right side of the wheel hub 2. A plurality of mounting rods 504 are passed through the corresponding circular slot heads 503, and the nuts 505 are threadedly connected to the ends of the mounting rods 504. This design can fix the first mounting shell 501 and the second mounting shell 502, and the second mounting shell 502 can be fixed. The second mounting shell 502 is fixed to the tire 1 by screws. Therefore, when the first mounting shell 501 and the second mounting shell 502 need to be replaced, the corresponding nuts 505 and screws can be screwed, so that it is convenient to replace them when damaged. After the first mounting shell 501 and the second mounting shell 502 are installed, when the driver encounters an emergency and needs to brake, he can step on the foot brake in the car, and the foot brake can drive the pressure supply mechanism 7 to operate, and cooperate with the braking mechanism 6 to brake the two wheel hubs 2, thereby braking the tire 1.

[0032] Example 2:

[0033] Reference Figures 1-8A brake device for an electric four-wheeled vehicle includes two symmetrically arranged tires 1, one side of each tire 1 is fixedly connected to a wheel hub 2, a suspension frame 3 is provided between the two tires 1, the outer surface of the suspension frame 3 is symmetrically fixedly connected to two mounting blocks 4, two brake assemblies 5 are symmetrically provided on the suspension frame 3, the brake assembly 5 includes a first mounting shell 501 provided on one side of the wheel hub 2, the outer surface of the suspension frame 3 is detachably connected to a second mounting shell 502 by screws, a circular groove head 503 is fixed on the outer surface of the first mounting shell 501, a mounting rod 504 is fixed on one side of the second mounting shell 502, and the mounting rod 504 is fixed on the outer surface of the second mounting shell 502. 04 slides in the corresponding circular slot head 503, and the end of the mounting rod 504 extending out of the circular slot head 503 is threadedly connected with a nut 505. The brake assembly 5 is provided with a braking mechanism 6 for slowing down the rotation speed of the tire 1. The tire 1 is also provided with a pressure supply mechanism 7 for driving the braking mechanism 6 to operate. The tops of the two mounting blocks 4 are fixed with support bars 8, and one end of the support bar 8 is fixed with a circular shell 9. The pressure supply mechanism 7 is linked with a blowing device 11 for accelerating the heat dissipation speed of the brake mechanism 6 through a connecting component 10. The connecting component 10 is installed in the circular shell 9. The brake mechanism 6 includes a fixed connection to the first The fixing piece 601 of the mounting shell 501 is close to the side of the wheel hub 2, and a fixing cylinder 602 is fixedly connected to one side of the second mounting shell 502. The piston in the fixing cylinder 602 is connected to a piston disk 603. One side of the piston disk 603 is fixedly connected to a connecting rod 604. The connecting rod 604 slides through the second mounting shell 502. One end of the connecting rod 604 is fixedly connected to an arc strip 605. The side of the arc strip 605 close to the wheel hub 2 is fixedly connected to a brake pad 606. The pressure supply mechanism 7 has two piston cylinders 701 that are rotatably connected to the suspension frame 3 through a rotating shaft. The two piston cylinders 701 are symmetrically arranged. The piston cylinders 70 1. Each piston is connected to a piston head 702. The top of the piston head 702 is fixedly connected to a pressure rod 703. The top of the pressure rod 703 is fixedly connected to a top cover 704. The tops of the two top covers 704 are rotatably connected to a lower pressure plate 705 via a rotating shaft. The outer surface of the pressure rod 703 is sleeved with a return spring 706. The two ends of the return spring 706 are fixedly connected to the piston cylinder 701 and the top cover 704 respectively. The outer surface of the piston cylinder 701 is connected to an oil inlet pipe 707. The other end of the oil inlet pipe 707 is connected to the fixed cylinder 602. The outer surface of the piston cylinder 701 is connected to the oil filling port 14 and the oil outlet port 15 in sequence from top to bottom.

[0034] The present invention is basically the same as Example 1. Furthermore, when installing the brake device, the fixing plate 601 is fixedly installed on a side of the first mounting shell 501 close to the wheel hub 2 and is fitted with the wheel hub 2. The brake fluid is injected into the piston cylinder 701 through the oil filling port 14, so that the brake fluid is stored in the piston cylinder 701. When braking, the foot brake is used to generate a downward force on the lower pressure plate 705. The top cover 704 is rotatably connected to the lower pressure plate 705 through the rotating shaft, and the piston cylinder 701 is rotatably connected to the second mounting shell 502 through the rotating shaft, thereby driving the pressure rod 703 to slide in the piston cylinder 701, causing the piston head 702 to perform piston motion in the piston cylinder 701. The pressure generated by its motion will The brake fluid in the piston cylinder 701 is squeezed into the fixed cylinder 602 through the oil inlet pipe 707. The action of the brake fluid drives the piston disc 603 and the arc strip 605 to move toward the wheel hub 2. Since the connecting rod 604 slides in the inner wall of the second mounting shell 502, the piston disc 603 can be limited to prevent the piston disc 603 from slipping out of the fixed cylinder 602. When the brake pad 606 contacts the wheel hub 2, the interaction between the brake pad 606 and the fixed plate 601 is used to brake the tire 1 and the wheel hub 2. This design can brake the two tires 1 synchronously at the same time, enhance the braking effect, and improve safety performance. When the brake fluid needs to be replaced, open the opening of the oil outlet 15 to allow the brake fluid to flow out.

[0035] Example 3:

[0036] Reference Figures 1-8A brake device for an electric four-wheeled vehicle includes two symmetrically arranged tires 1, one side of each tire 1 is fixedly connected to a wheel hub 2, a suspension frame 3 is provided between the two tires 1, the outer surface of the suspension frame 3 is symmetrically fixedly connected to two mounting blocks 4, two brake assemblies 5 are symmetrically provided on the suspension frame 3, and the brake assembly 5 includes a first mounting shell 501 provided on one side of the wheel hub 2, the outer surface of the suspension frame 3 is detachably connected to a second mounting shell 502 by screws, the outer surface of the first mounting shell 501 is fixed with a circular groove head 503, and the second mounting shell 502 is fixed with a circular groove head 503. A mounting rod 504 is fixed on one side, and the mounting rod 504 slides in the corresponding circular slot head 503. The end of the mounting rod 504 extending out of the circular slot head 503 is threadedly connected with a nut 505. The brake assembly 5 is provided with a braking mechanism 6 for slowing down the rotation speed of the tire 1. The tire 1 is also provided with a pressure supply mechanism 7 for driving the braking mechanism 6 to operate. The tops of the two mounting blocks 4 are fixed with support bars 8, and one end of the support bar 8 is fixed with a circular shell 9. The pressure supply mechanism 7 is linked with a blowing device for accelerating the heat dissipation speed of the brake mechanism 6 through a connecting component 10. The connecting assembly 10 is installed in the circular shell 9. The connecting assembly 10 includes a connecting rack 1001 fixedly connected to the bottom of the lower pressure plate 705. The outer surface of the connecting rack 1001 is meshed with a connecting gear 1002. The axis of the connecting gear 1002 is fixedly connected to a rotating rod 1003. The rotating rod 1003 is rotatably connected to the circular shell 9 through a bearing. The outer surface of the rotating rod 1003 is fixedly connected to a rotating bar 1004. One side of the rotating bar 1004 is rotatably connected to a circular gear 1005 through a rotating shaft. The inner wall of the circular shell 9 is fixed with a connecting rack 1001. It is connected to the limiting tooth 1006, and the circular gear 1005 is meshed with the limiting tooth 1006. One side of the circular gear 1005 is fixedly connected to a rectangular bar 1007, and one side of the rectangular bar 1007 is fixedly connected to a driving rod 1008. The outer surface of the rotating rod 1003 is also fixedly connected to an extrusion bar 1009, and a limiting groove 1010 is provided on the extrusion bar 1009. The driving rod 1008 slides inside the limiting groove 1010, and one end of the driving rod 1008 is fixedly connected to the limiting head 13. The diameter of the limiting head 13 is larger than the width of the limiting groove 1010.

[0037] The present invention is basically the same as Example 1. Furthermore, when the lower pressure plate 705 is moved downward by the foot brake, the lower pressure plate 705 will drive the connecting rack 1001 to move downward. Since the connecting rack 1001 is meshed and connected with the connecting gear 1002, the connecting gear 1002 is driven to rotate. The connecting gear 1002 in turn drives the rotating rod 1003 to rotate, and the rotating rod 1003 drives the rotating bar 1004 to rotate. Since the circular gear 1005 is rotatably connected to the rotating bar 1004 through the rotating shaft and the limiting tooth 1006 is meshed and connected with the circular gear 1005 for limiting, the circular gear 1005 can be driven to rotate on the outer surface of the limiting tooth 1006. When the circular gear 1005 rotates, it also drives the rectangular bar 1007 to rotate. When the rotating rod 1003 rotates, it also drives the extrusion bar 1009 to rotate. Since the driving rod 1008 slides in the limiting groove 1010 for limiting The position of the circular gear 1005, the limiting tooth 1006, the rectangular bar 1007, the driving rod 1008 and the limiting groove 1010 are arranged, and the meshing force between the circular gear 1005 and the limiting tooth 1006 is utilized to achieve a certain deceleration effect, thereby avoiding the extrusion bar 1009 from rotating too fast in the event of sudden braking, thereby causing the extrusion bar 1009 to be damaged. The setting of the limiting head 13 is used to limit the driving rod 1008 to avoid the driving rod 1008 from being disengaged from the limiting groove 1010, thereby enhancing the stability of the extrusion bar 1009 during rotation.

[0038] Example 4:

[0039] Reference Figures 1-8, a brake device for an electric four-wheeled vehicle includes two symmetrically arranged tires 1, one side of each tire 1 is fixedly connected to a wheel hub 2, a suspension frame 3 is provided between the two tires 1, the outer surface of the suspension frame 3 is symmetrically fixedly connected to two mounting blocks 4, and two brake assemblies 5 are symmetrically provided on the suspension frame 3. The brake assembly 5 includes a first mounting shell 501 provided on one side of the wheel hub 2, the outer surface of the suspension frame 3 is detachably connected to the second mounting shell 502 by screws, a circular groove head 503 is fixed on the outer surface of the first mounting shell 501, and a mounting rod 504 is fixed on one side of the second mounting shell 502, the mounting rod 504 slides in the corresponding circular groove head 503, and the end of the mounting rod 504 extending from the circular groove head 503 is threadedly connected to a nut 505, a braking mechanism 6 for slowing down the rotation speed of the tire 1 is provided on the brake assembly 5, and a pressure supply mechanism 7 for driving the braking mechanism 6 to operate is also provided on the tire 1, and a support bar 8 is fixed on the top of the two mounting blocks 4. A circular shell 9 is fixed at one end of the support bar 8. A blowing device 11 for accelerating the heat dissipation speed of the brake mechanism 6 is linked to the pressure supply mechanism 7 through a connecting component 10. The connecting component 10 is installed in the circular shell 9. The blowing device 11 includes two chassis 1101 symmetrically fixedly connected to one side of the tire 1. The top of the chassis 1101 is fixedly connected to an extrusion cylinder 1102. The interior of the extrusion cylinder 1102 is provided with a slide rod 1103 for piston movement. The top of the slide rod 1103 is fixedly connected to the tire 1. It is connected to a top plate 1104, and the outer surface of the extrusion cylinder 1102 is sleeved with a compression spring 1105. The two ends of the compression spring 1105 are fixedly connected to the bottom plate 1101 and the top plate 1104 respectively. The top of the top plate 1104 is fixedly connected with a fixing plate 1106, and the fixing plate 1106 is located directly below the extrusion strip 1009. One side of the second mounting shell 502 is connected to a hair dryer 1107, and an air inlet pipe 1108 is connected between the hair dryer 1107 and the extrusion cylinder 1102.

[0040] The present invention is basically the same as Example 1. Furthermore, when the extrusion bar 1009 makes a circular motion and contacts the fixed plate 1106, the fixed plate 1106 is driven to move downward, thereby driving the top plate 1104 and the slide bar 1103 to move downward together, causing the slide bar 1103 to slide downward in the extrusion cylinder 1102, compressing the compression spring 1105. When the extrusion bar 1009 is away from the fixed plate 1106, the elastic force of the compression spring 1105 is used to reset the fixed plate 1106. Therefore, the rotation of the extrusion bar 1009 causes the fixed plate 1106 to move downward. 106 moves repeatedly in the vertical direction, and the pressure generated by the downward sliding of the slide rod 1103 allows the generated gas to enter the hair dryer 1107 from the air inlet pipe 1108 and be ejected from the hair dryer 1107. Since the hair dryer 1107 is connected to the second mounting shell 502 and corresponds to the position of the brake pad 606, the blown gas can blow air on the brake pad 606, which is used to quickly dissipate the heat generated by the friction between the brake pad 606 and the wheel hub 2, thereby avoiding damage to the brake pad 606 due to excessive temperature after long-term use, and reducing the number of times the brake pad 606 is replaced.

[0041] A braking method for an electric four-wheeled vehicle brake device comprises the following steps:

[0042] Step A: During use, screw the screws into the corresponding mounting holes 12 to securely mount the mounting block 4 on the base of the electric four-wheeled vehicle, thereby securing the tire 1. During installation, the first mounting housing 501 should be positioned on the left side of the wheel hub 2, and the second mounting housing 502 should be positioned on the right side of the wheel hub 2. Multiple mounting rods 504 should be passed through the corresponding circular slots 503, and nuts 505 should be threaded onto the ends of the mounting rods 504.

[0043] Step B: The fixing plate 601 is fixedly mounted on a side surface of the first mounting housing 501 close to the wheel hub 2, and is fitted with the wheel hub 2. Brake fluid is injected into the piston cylinder 701 through the oil filling port 14, so that the brake fluid is stored in the piston cylinder 701. When braking, the foot brake is used to generate a downward force on the lower pressure plate 705, thereby driving the pressure rod 703 to slide in the piston cylinder 701, causing the piston head 702 to perform a piston motion in the piston cylinder 701. The pressure generated by the movement squeezes the brake fluid in the piston cylinder 701 into the fixing cylinder 602 through the oil inlet pipe 707. The action of the brake fluid drives the piston disc 603 and the arc strip 605 to move toward the wheel hub 2. When the brake pad 606 contacts the wheel hub 2, the interaction between the brake pad 606 and the fixing plate 601 is used to brake the tire 1 and the wheel hub 2.

[0044] Step C: When the lower pressure plate 705 is moved downward by the foot brake, the lower pressure plate 705 will drive the connecting rack 1001 to move downward. Since the connecting rack 1001 is meshed with the connecting gear 1002, the connecting gear 1002 is driven to rotate. The connecting gear 1002 in turn drives the rotating rod 1003 to rotate. The rotating rod 1003 drives the rotating bar 1004 to rotate, thereby driving the circular gear 1005 to rotate on the outer surface of the limiting tooth 1006. When the circular gear 1005 rotates, it also drives the rectangular bar 1007 to rotate. When the rotating rod 1003 rotates, it also drives the extrusion bar 1009 to rotate. Since the driving rod 1008 slides in the limiting groove 1010 for limitation, it drives the extrusion bar 1009 to make a circular motion in the horizontal direction. When the extrusion bar 1009 makes a circular motion and the extrusion bar 1009 is fixed to the fixed plate 1106 When in contact, the fixed plate 1106 will be driven to move downward, thereby driving the top plate 1104 and the slide bar 1103 to move downward together, causing the slide bar 1103 to slide downward in the extrusion cylinder 1102, compressing the compression spring 1105. When the extrusion bar 1009 is away from the fixed plate 1106, the elastic force of the compression spring 1105 will reset the fixed plate 1106. Therefore, through the rotation of the extrusion bar 1009, the fixed plate 1106 will move repeatedly in the vertical direction. The pressure generated by the downward sliding of the slide bar 1103 allows the generated gas to enter the blower tube 1107 from the air inlet pipe 1108 and be ejected from the blower tube 1107. Since the blower tube 1107 is connected to the second mounting shell 502 and corresponds to the position of the brake pad 606, the blown gas can blow the brake pad 606.

[0045] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A brake device for an electric four-wheeled vehicle, comprising two symmetrically arranged tires (1), characterized in that: One side of each tire (1) is fixedly connected to a wheel hub (2), a suspension frame (3) is provided between the two tires (1), the outer surface of the suspension frame (3) is symmetrically fixedly connected to two mounting blocks (4), two brake assemblies (5) are symmetrically provided on the suspension frame (3), the brake assemblies (5) include a first mounting shell (501) provided on one side of the wheel hub (2), the outer surface of the suspension frame (3) is detachably connected to a second mounting shell (502) via screws, a circular slot head (503) is fixed on the outer surface of the first mounting shell (501), a mounting rod (504) is fixed on one side of the second mounting shell (502), and the mounting rod (504) slides in the opposite direction. In the corresponding circular slot head (503), the end of the mounting rod (504) extending out of the circular slot head (503) is threadedly connected with a nut (505), the brake assembly (5) is provided with a brake mechanism (6) for slowing down the rotation speed of the tire (1), and the tire (1) is also provided with a pressure supply mechanism (7) for driving the brake mechanism (6) to operate, the tops of the two mounting blocks (4) are fixed with a support bar (8), one end of the support bar (8) is fixed with a circular shell (9), the pressure supply mechanism (7) is linked with a blowing device (11) for accelerating the heat dissipation speed of the brake mechanism (6) through a connecting assembly (10), and the connecting assembly (10) is installed in the circular shell (9); The brake mechanism (6) comprises a fixing plate (601) fixedly connected to a side of the first mounting shell (501) close to the wheel hub (2); a fixing cylinder (602) fixedly connected to a side of the second mounting shell (502); a piston in the fixing cylinder (602) connected to a piston disc (603); a connecting rod (604) fixedly connected to a side of the piston disc (603); the connecting rod (604) slidingly passes through the second mounting shell (502); an arc strip (605) fixedly connected to one end of the connecting rod (604); and a brake pad (606) fixedly connected to a side of the arc strip (605) close to the wheel hub (2); The pressure supply mechanism (7) comprises two piston cylinders (701) rotatably connected to the suspension frame (3) via a rotating shaft. The two piston cylinders (701) are symmetrically arranged. A piston head (702) is connected to the piston in each piston cylinder (701). The top of each piston head (702) is fixedly connected to a pressure rod (703). The top of each pressure rod (703) is fixedly connected to a top cover (704). The tops of the two top covers (704) are rotatably connected to a lower pressure plate (705) via a rotating shaft. A return spring (706) is sleeved on the outer surface of the pressure rod (703). The two ends of the return spring (706) are fixedly connected to the piston cylinder (701) and the top cover (704) respectively. The outer surface of the piston cylinder (701) is connected to an oil inlet pipe (707). The other end of the oil inlet pipe (707) is connected to the fixed cylinder (602). The connecting assembly (10) includes a connecting rack (1001) fixedly connected to the bottom of the lower pressure plate (705), the outer surface of the connecting rack (1001) is meshedly connected to the connecting gear (1002), the axis of the connecting gear (1002) is fixedly connected to a rotating rod (1003), the rotating rod (1003) is rotatably connected to the circular shell (9) through a bearing, the outer surface of the rotating rod (1003) is fixedly connected to a rotating bar (1004), one side of the rotating bar (1004) is rotatably connected to the circular gear (1005) through a rotating shaft, and the circular The inner wall of the shaped shell (9) is fixedly connected with a limiting tooth (1006), the circular gear (1005) is meshedly connected with the limiting tooth (1006), one side of the circular gear (1005) is fixedly connected with a rectangular bar (1007), one side of the rectangular bar (1007) is fixedly connected with a driving rod (1008), the outer surface of the rotating rod (1003) is also fixedly connected with an extrusion bar (1009), a limiting groove (1010) is provided on the extrusion bar (1009), and the driving rod (1008) slides inside the limiting groove (1010).

2. The electric four-wheel vehicle brake device according to claim 1, characterized in that: The blowing device (11) comprises two chassis (1101) symmetrically fixedly connected to one side of the tire (1), the top of each chassis (1101) is fixedly connected to an extrusion cylinder (1102), a piston-moving slide rod (1103) is provided inside each extrusion cylinder (1102), the top of each slide rod (1103) is fixedly connected to a top plate (1104), and the outer surface of each extrusion cylinder (1102) is sleeved with a compression spring (1105). The two ends of the compression spring (1105) are fixedly connected to the bottom plate (1101) and the top plate (1104), respectively. The top of the top plate (1104) is fixedly connected to a fixing plate (1106). The fixing plate (1106) is located directly below the extrusion strip (1009). One side of the second mounting shell (502) is connected to a hair dryer (1107). An air inlet pipe (1108) is connected between the hair dryer (1107) and the extrusion cylinder (1102).

3. The electric four-wheel vehicle brake device according to claim 1, characterized in that: The middle of each mounting block (4) is provided with a mounting hole (12) for screwing in a screw.

4. The electric four-wheel vehicle brake device according to claim 1, characterized in that: One end of the driving rod (1008) is fixedly connected to a limiting head (13), and the diameter of the limiting head (13) is greater than the width of the limiting groove (1010).

5. The electric four-wheel vehicle brake device according to claim 1, characterized in that: The outer surface of the piston cylinder (701) is connected to an oil filling port (14) and an oil outlet (15) in sequence from top to bottom.

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