CN110450899B

CN110450899B - Pedal type electric vehicle brake device

Info

Publication number: CN110450899B
Application number: CN201910748450.1A
Authority: CN
Inventors: 刘隆蓉
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-08-14
Filing date: 2019-08-14
Publication date: 2024-07-23
Anticipated expiration: 2039-08-14
Also published as: CN110450899A

Abstract

The invention discloses a pedal type electric vehicle brake device which comprises a vehicle frame, wherein a foot brake pedal is hinged to the outer side of the vehicle frame, a connecting plate is arranged on the foot brake pedal, a rotating shaft is arranged on the vehicle frame behind the foot brake pedal, one end of the rotating shaft is positioned on the outer side of the vehicle frame and is fixedly provided with a first swing rod, the other end of the rotating shaft is positioned on the inner side of the vehicle frame and is fixedly provided with a second swing rod, a brake pump is arranged on the inner side of the vehicle frame at the front end of the second swing rod, a piston rod of the brake pump is in transmission connection with the second swing rod, and a connecting piece for pulling the first swing rod to swing along with the connecting plate is connected between the connecting plate and the first swing rod. The pedal type electric vehicle brake device is more reasonable in structural design, and the brake pump can be arranged on the inner side of the vehicle frame and cannot generate installation interference.

Description

Pedal type electric vehicle brake device

Technical Field

The invention relates to the field of electric vehicles, in particular to a pedal type electric vehicle brake device.

Background

The existing electric vehicles are divided into a straddle type electric vehicle and a pedal type electric vehicle, wherein a pedal area is arranged between a vehicle head and a saddle, and feet of a driver can be placed on the pedal during riding. Foot brake devices are mounted on pedals of most pedal-powered electric vehicles. The foot brake device comprises a foot brake pedal, the rear end of the foot brake pedal is hinged on the frame below the middle part of the pedal and is connected with a brake cable or a brake pump, and the front end of the foot brake pedal is positioned at the front end of the pedal part. A certain length needs to be ensured between the front end and the rear end of the foot brake pedal, so that the force required by stepping on the sand adding pedal is reduced by utilizing the lever principle, and the foot brake is more sensitive to control.

As shown in the electric vehicle frame with the patent number 201621330559.1, the frame part below the pedal of the electric vehicle is U-shaped, a battery compartment is arranged on the frame below the rear end of the pedal, and a connecting rod is arranged on the frame below the front part of the pedal along the width direction of the vehicle body. Most of the existing foot brake devices pull a drum brake through a brake cable to brake a vehicle. The drum brake is used for braking, so that the transmission is simple, the overall cost is low, but the braking distance of the drum brake is longer than that of the disc brake, meanwhile, the brake cable is easy to relax in the use process of the drum brake, and the brake cable needs to be tightly regulated frequently, so that the use is inconvenient.

The chinese patent No. 201621400240.1 discloses an electric motor car service brake structure, and the brake pump is installed in the rear side of service brake pedal pin joint, and when stepping on the service brake pedal, the connecting block of service brake pedal rear end promotes the brake pump work, and the brake pump is to the oil feed of dish brake subassembly, makes the dish brake to the vehicle braking. The brake pump is arranged like this, can brake the vehicle, but brake pump and foot brake footboard are roughly in sharp range and are connected in the frame outside, and occupation space is great, can influence the installation of automobile body working of plastics to when bumping or toppling over, the brake pump takes place to damage easily, and maintenance is changed comparatively trouble.

Although the distance between the battery compartment and the transverse connection rod is greater than the length of the brake pump, since the hinge point of the foot brake pedal is approximately positioned at the middle position between the transverse connection rod and the battery compartment, the length from the hinge point to the transverse connection rod or the length from the hinge point to the battery compartment is smaller than the length of the brake pump, if the brake pump is simply arranged on the inner side of the frame at the front side or the rear side of the hinge point of the foot brake pedal, the brake pump can interfere with the battery compartment or the transverse connection rod, so that the brake pump cannot be arranged.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a pedal type electric vehicle braking device which is more reasonable in structural design, and a braking pump can be arranged on the inner side of a vehicle frame without installation interference.

The technical aim of the invention is realized by the following technical scheme: the utility model provides a pedal type electric motor car brake equipment, includes the frame, and the frame outside articulates there is the foot brake footboard, installs the connecting plate on the foot brake footboard, installs the pivot on the frame at foot brake footboard rear, and pivot one end is located the frame outside and is fixed with pendulum rod one, and the other end is located the frame inboard and is fixed with pendulum rod two, and the brake pump is installed to the frame inboard of pendulum rod two front ends, and the piston rod and the pendulum rod transmission of brake pump are connected, are connected with the connecting piece that pulls pendulum rod one and make it follow the connecting plate wobbling between connecting plate and the pendulum rod one.

Through the technical scheme, when the foot brake pedal is stepped on, the foot brake pedal rotates around the hinge point. The connecting plate arranged on the foot brake pedal also rotates along with the foot brake pedal. The connecting plate is connected with the first swing rod through the connecting piece, so that the first swing rod rotates, the first swing rod and the second swing rod are fixed on the same rotating shaft, the second swing rod rotates while the first swing rod swings, and accordingly the second swing rod drives a piston rod of the brake pump to slide into the brake pump, and the brake pump works to brake a vehicle.

The rotation shaft is positioned at the rear side of the foot brake pedal and is close to the battery compartment, so that the second swing rod driving the brake pump to work is also close to the battery compartment, and a sufficient space is reserved between the second swing rod and the transverse connecting rod for installing the brake pump. Therefore, the brake pump can be arranged on the inner side of the frame, and damage to the brake pump when the electric vehicle collides or falls down is avoided. The rotating shaft can be directly drilled on the frame for installation, and a special connecting seat can be arranged for installation.

Preferably, the bicycle further comprises a hand brake handle and a brake cable, wherein the bicycle frame is provided with a limiting seat, one end of the brake cable is connected with the hand brake handle, and the other end of the brake cable penetrates through the limiting seat to be connected with the first swing rod, the second swing rod or the connecting plate.

Through above-mentioned technical scheme, the setting of manual brake handle makes also can work to drive the brake pump through the manual brake handle, can also brake through the manual brake handle when the foot brake pedal takes place the clamping stagnation to improve this arresting gear's security and reliability.

As the connecting plate and the swing rod I can drive the swing rod II to swing when swinging, the brake cable can be linked with any one of the connecting plate, the swing rod I and the swing rod II to drive the brake pump to work. The brake cable can flexibly drive the connecting plate, the first swing rod or the second swing rod to swing through changing the setting position of the limiting seat. For example, when the connecting plate is required to be driven to swing through the brake cable, the limiting seat is arranged at the front end (namely the direction of the vehicle head) of the connecting plate, and the rear end of the brake cable is connected with the connecting plate, so that the connecting plate can be driven to swing.

Preferably, the hand brake handle is provided with a parking brake device.

Through the technical scheme, when the vehicle is parked, the parking brake device on the handle can be used for keeping the brake device in a braking state all the time, so that the vehicle is in the braking state, the safety during parking is improved, and the vehicle cannot slip even if the vehicle is parked on an inclined road surface. The parking brake device arranged on the hand brake handle is in the prior art, and is widely applied to the field of electric vehicles at present, such as a parking brake handle with the patent number 201621327765.7 and a ratchet type parking mechanism suitable for the hand brake device with the patent number 201510630603.4.

Preferably, the frame is provided with a connecting seat, and the rotating shaft is arranged in the connecting seat in a penetrating way.

Through above-mentioned technical scheme, the setting of connecting seat can fix the pivot better. Meanwhile, the connecting seat is additionally arranged on the frame, direct drilling on the frame is not needed for installing the rotating shaft, and the integral strength of the frame can be ensured. The connecting seat is additionally arranged, so that the reduction of the overall strength of the frame caused by directly punching the frame can be avoided.

Preferably, a clamp spring groove is formed in the rotating shaft, and a clamp spring is arranged in the clamp spring groove.

Through above-mentioned technical scheme, jump ring and jump ring groove's setting can be comparatively conveniently fixed on the frame with the pivot, can set up twice jump ring groove in the pivot, makes the frame be in between two jump ring grooves to the axial slip of restriction jump ring carries out limited restriction and fixes the position of pivot.

Preferably, the swing rod one body is fixed on the rotating shaft, and the swing rod two body is detachably connected to the other end of the rotating shaft; or the first swing rod is detachably connected to the other end of the rotating shaft, and the second swing rod is integrally fixed on the rotating shaft.

Through the technical scheme, the swing rod I or the swing rod II is integrally fixed on the rotating shaft, so that the swing rod I or the swing rod II and the rotating shaft are stored as one piece during storage, the number of parts of the whole vehicle can be correspondingly reduced, and the assembly is more convenient. The integral connection means that the swing rod I or the swing rod II is firmly connected with the rotating shaft to form a whole, and the whole is taken and assembled. During processing, the swing rod I or the swing rod II and the rotating shaft can be integrated through casting, and also can be integrated through welding, interference fit and the like.

Preferably, the outer end of the rotating shaft is provided with a radial mounting hole, the lower end of the first swing rod is provided with a fitting section which is fitted with the outer side surface of the rotating shaft, the fitting section is provided with a through hole corresponding to the mounting hole, and the through hole and the mounting hole are internally provided with a fixing piece.

Through the technical scheme, the first swing rod can be better attached to the surface of the rotating shaft due to the arrangement of the attaching section, so that the first swing rod and the second swing rod are firmly connected. The surface of the attaching section can be an arc surface, and the outer side of the rotating shaft is also an arc surface. The surface of the end of the lifting care can be a plane, and at the moment, one side of the rotating shaft can be milled to form a plane so as to be matched with the attaching section. And because the first swing rod is positioned at the outer side of the frame, the first swing rod is detachably connected with the outer end of the rotating shaft, the operation space is larger, and the installation and fixation are more convenient.

Preferably, the fixing member includes a bolt having one end passing through the through hole and the mounting hole and being screwed with a fastening nut.

Through above-mentioned technical scheme, use bolt and nut to fix pendulum rod one and pivot, the installation, dismantle comparatively conveniently, compare with interference fit simultaneously, need not to strike the mounting in the equipment process, can avoid causing impact to frame, connecting seat etc. in the installation. Because the outside of the frame generally can be sprayed with a layer of protective paint, if interference fit is adopted, the protective paint can be damaged in the knocking process, so that the frame is easy to rust, and the service life of the frame is influenced.

Preferably, the first swing rod is provided with a connecting hole, the rear end of the brake cable and/or the connecting piece is provided with an adjusting screw rod, and the adjusting screw rod penetrates through the connecting hole and is in threaded connection with an adjusting nut.

Through above-mentioned technical scheme, adjusting nut's setting can be adjusted connecting piece length between connecting plate and the first pendulum rod, also can adjust the elasticity degree between hand brake handle and the first pendulum rod simultaneously for can drive the pivot immediately when holding the hand brake and rotate, also can drive the pivot immediately when stepping on the foot brake footboard simultaneously and rotate. The connecting piece can use the wire rope similar with the brake cable, and adjusting screw sets up the fixed orifices towards the one end of locomotive direction, inserts wire rope in the fixed orifices, then extrudees the end of screw rod for wire rope is pressed from both sides tightly in the screw rod.

Preferably, the brake device further comprises a front wheel disc brake assembly and a rear wheel disc brake assembly, and the front wheel disc brake assembly and the rear wheel disc brake assembly are connected with the brake pump through oil pipes.

Through above-mentioned technical scheme, when stepping on the foot brake footboard or holding the manual brake handle, can brake front wheel and rear wheel simultaneously to reduce the brake distance, also can prevent simultaneously that the emergency brake from when dead with the front wheel alone the vehicle that probably takes place from empting or the emergence of forward turning phenomenon, improve the security performance.

Compared with the prior art, the invention has the beneficial effects that: through setting up pivot and pendulum rod two for have great installation space between the horizontal connecting rod of pendulum rod two and footboard front end below and be used for installing the brake pump, make the brake pump can install in the frame inboard, thereby avoid the vehicle to bump and break the brake pump when empting. Simultaneously, the hand brake and the foot brake can realize linkage, and both the hand brake and the foot brake can brake the front wheel and the rear wheel simultaneously, so that the braking distance is reduced, and the safety of a vehicle is improved.

Drawings

FIG. 1 is a perspective view of an embodiment;

FIG. 2 is a second perspective view of an embodiment;

FIG. 3 is an enlarged view of FIG. 1 at A;

FIG. 4 is an enlarged view at B in FIG. 2;

FIG. 5 is a perspective view of the shaft, the first swing link and the second swing link after assembly;

FIG. 6 is an exploded view of the shaft, first swing link and second swing link;

fig. 7 is a schematic diagram of a brake pump and a front disc brake and a rear disc brake.

Reference numerals: 1. a frame; 2. a foot brake pedal; 3. a connecting plate; 4. a rotating shaft; 5. a swing rod I; 6. a swing rod II; 7. a brake pump; 8. a piston rod; 9. a connecting piece; 10. a brake cable; 11. a limit seat; 12. a connecting seat; 13. a clamp spring groove; 14. clamping springs; 15. a mounting hole; 16. a bonding section; 17. a through hole; 18. a fixing member; 19. a bolt; 20. a fastening nut; 21. a connection hole; 22. adjusting a screw; 23. an adjusting nut; 24. a front wheel disc brake assembly; 25. a rear wheel disc brake assembly; 26. an oil pipe; 27. a battery compartment; 28. a connecting rod; 29. a hand brake handle.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The present embodiment is only for explanation of the present invention and is not to be construed as limiting the present invention, and modifications to the present embodiment, which may not creatively contribute to the present invention as required by those skilled in the art after reading the present specification, are all protected by patent laws within the scope of claims of the present invention.

As shown in fig. 1 and 2, a pedal-type electric vehicle brake device comprises a vehicle frame 1, wherein the region of the vehicle frame 1 below a pedal is U-shaped. The foot brake pedal 2 is installed on the outer side of the frame 1 below the pedal area, the rear end of the foot brake pedal 2 is hinged to the frame 1, and when the foot brake pedal 2 is stepped on, the foot brake pedal 2 can swing around a hinge point. The rear end of the foot brake pedal 2 is fixed with a connecting plate 3. The frame 1 behind the hinge point is welded with a connecting seat 12, the connecting seat 12 is positioned at the front side of a battery compartment 27, and the rotating shaft 4 is rotatably arranged on the connecting seat 12. The two ends of the rotating shaft 4 are respectively positioned at the inner side and the outer side of the frame 1. One end of the rotating shaft 4, which is positioned on the outer side of the frame 1, is detachably provided with a swing rod I5, and one end of the rotating shaft 4, which is positioned on the inner side of the frame 1, is fixedly provided with a swing rod II 6. The swing rod I5 is connected with the connecting plate 3 through a connecting piece 9. When the foot brake pedal 2 is stepped on, the connecting plate 3 swings along with the foot brake pedal 2, and meanwhile the first swing rod 5 is pulled by the connecting piece 9 to swing along with the connecting plate 3. A reset spring (not shown in the figure) is connected between the swing rod I5 and the frame 1 behind the swing rod I5, and when the foot brake pedal 2 is released, the reset spring drives the swing rod I5 to reversely rotate, and meanwhile, the connecting plate 3 is driven to reset through the connecting piece 9.

The inner side of the frame 1 at the front end of the second swing rod 6 is provided with a brake pump 7, the brake pump 7 is positioned behind the connecting rod 28, and the second swing rod 6 is in transmission connection with a piston rod 8 of the brake pump 7. When the second swing rod 6 swings towards the direction of the vehicle head, the piston rod 8 of the brake pump 7 is pushed to move towards the inside of the brake pump 7, so that oil in the brake pump 7 is extruded, and the brake pump 7 drives the disc brake assembly to brake.

The device further comprises a hand brake lever 29 and a brake cable 10. The hand brake handle 29 is arranged on the handle of the vehicle head, and one end of the brake cable 10 is connected with the hand brake handle 29. The frame 1 is also provided with a limiting seat 11, the limiting seat 11 is positioned between the connecting seat 12 and the foot brake hinging point, and the rear end of the brake cable 10 passes through the limiting seat 11. The rear end of the brake cable 10 is connected with the first swing rod 5. When the hand brake handle 29 is held, the rear end of the brake cable 10 moves forwards, so that the swing rod I5 is driven to swing towards the direction of the vehicle head, and the swing rod II 6 is driven to drive the brake pump 7 to brake. The brake cable 10 can also be connected with the connecting plate 3 or the second swing rod 6, so that the same effect can be achieved.

The hand brake handle is also provided with a parking brake device, the hand brake handle parking brake device is the prior art, and the parking brake handle with the patent number 201621327765.7 and the ratchet type parking mechanism with the patent number 201510630603.4, which are applicable to the hand brake device, are disclosed and are not repeated herein.

As shown in fig. 5 and 6, two jump ring grooves 13 are provided on the rotating shaft 4, and when the rotating shaft 4 is installed in the connecting seat 12, the two jump ring grooves 13 are respectively located at one side of the connecting seat 12 and are provided with jump rings 14. The axis position of the rotating shaft 4 is positioned through the clamping spring 14.

The first swing rod 5 is detachably arranged at one end of the rotating shaft 4, and the second swing rod 6 is fixed at the other end of the rotating shaft 4. The swing rod II 6 and the rotating shaft 4 are fixed in a welding mode, a circular same hole is formed in the swing rod II 6, the end part of the inner end of the rotating shaft 4 penetrates through the swing rod II 6, and then the swing rod II and the rotating shaft 4 are connected into a whole in a welding mode, so that the swing rod II and the rotating shaft 4 are installed and stored as a piece. In addition, the swing rod II 6 can be provided with a polygonal hole, and the end part of the inner end of the rotating shaft 4 is arranged into a corresponding polygon, so that circumferential clamping fit can be realized between the inner end of the rotating shaft 4 and the polygonal hole on the swing rod II 6 after the inner end of the rotating shaft 4 penetrates into the polygonal hole, and further torque transmission can be realized. And then the swing rod II 6 and the rotating shaft 4 are connected into a whole through welding, interference fit and the like. One end of the swing rod I5 is provided with a fitting section 16 which is fitted with the outer side face of the rotating shaft 4, a through hole 17 is formed in the fitting section 16, a radial mounting hole 15 is also formed in the rotating shaft 4, and the through hole 17 is arranged corresponding to the mounting hole 15. A fixing piece 18 for fixing the swing rod I5 and the rotating shaft 4 is arranged in the through hole 17 and the mounting hole 15. The fixing member 18 includes a bolt 19 and a fastening nut 20. The end of the bolt 19 passes through the through hole 17 and the mounting hole 15 and is connected with the fastening nut 20 so that the two are fixed together.

The swing rod I5 is also provided with a connecting hole 21, and the rear ends of the brake cable 10 and the connecting piece 9 are respectively provided with an adjusting screw 22, and the adjusting screw 22 penetrates through the connecting hole 21. An adjusting nut 23 is screwed to one end of the adjusting screw 22 passing through the connecting hole 21. Through adjusting nut 23's setting, can comparatively conveniently adjust the taut degree of connecting piece 9 and brake cable 10 to make between pendulum rod one 5 and the connecting plate 3, can keep better linkage performance between pendulum rod one 5 and the manual brake handle 29, when stepping on foot brake pedal 2 or holding the manual brake handle, pendulum rod one 5 can swing in time, thereby brakes.

The device still includes front wheel dish brake subassembly 24 and rear wheel dish brake subassembly 25, and front wheel dish brake subassembly 24 and rear wheel dish brake subassembly 25 all are connected with brake pump 7 through oil pipe 26 to make this brake equipment brake to front wheel and rear wheel simultaneously, reduce the brake distance, improve vehicle security performance. The disc brake assembly comprises a brake disc and calipers, is of the prior art and is relatively mature in use, so that detailed structures, connection and installation modes are not repeated.

In addition, it should be noted that the brake device can be used not only on electric vehicles, but also on some pedal motorcycles. The device should also be considered to fall within the scope of protection of this patent when it is used on a scooter.

The foregoing is merely exemplary embodiments of the present invention and is not intended to limit the scope of the invention, which is defined by the appended claims.

Claims

1. The utility model provides a pedal type electric motor car brake equipment, includes frame (1), and frame (1) outside articulates there is foot brake footboard (2), installs connecting plate (3), characterized by on foot brake footboard (2): a rotating shaft (4) is arranged on the frame (1) behind the foot brake pedal (2), one end of the rotating shaft (4) is positioned at the outer side of the frame (1) and is fixedly provided with a first swing rod (5), the other end of the rotating shaft is positioned at the inner side of the frame (1) and is fixedly provided with a second swing rod (6), a brake pump (7) is arranged at the inner side of the frame (1) at the front end of the second swing rod (6), a piston rod (8) of the brake pump (7) is in transmission connection with the second swing rod (6), and a connecting piece (9) for pulling the first swing rod (5) to swing along with the connecting plate (3) is connected between the connecting plate (3) and the first swing rod (5); the bicycle comprises a bicycle frame (1), a bicycle brake handle (29) and a brake cable (10), wherein a limit seat (11) is arranged on the bicycle frame (1), one end of the brake cable (10) is connected with the bicycle brake handle (29), and the other end of the brake cable passes through the limit seat (11) to be connected with a swing rod I (5), a swing rod II (6) or a connecting plate (3); the swing rod I (5) is integrally fixed on the rotating shaft (4), and the swing rod II (6) is detachably connected to the other end of the rotating shaft (4); or the swing rod I (5) is detachably connected to the other end of the rotating shaft (4), and the swing rod II (6) is integrally fixed on the rotating shaft (4); the outer end of the rotating shaft (4) is provided with a radial mounting hole (15), the lower end of the swing rod I (5) is provided with a fitting section (16) which is fitted with the outer side surface of the rotating shaft (4), the fitting section (16) is provided with a through hole (17) corresponding to the mounting hole (15), and a fixing piece (18) is arranged in the through hole (17) and the mounting hole (15); the fixing piece (18) comprises a bolt (19), and one end of the bolt (19) penetrates through the through hole (17) and the mounting hole (15) and is in threaded connection with a fastening nut (20).

2. The brake device of a pedal electric vehicle according to claim 1, wherein: the hand brake handle (29) is provided with a parking brake device.

3. The brake device of a pedal electric vehicle according to claim 1, wherein: the frame (1) is provided with a connecting seat (12), and the rotating shaft (4) is arranged in the connecting seat (12) in a penetrating way.

4. The brake device of a pedal electric vehicle according to claim 1, wherein: the rotating shaft (4) is provided with a clamp spring groove (13), and a clamp spring (14) is arranged in the clamp spring groove (13).

5. The brake device of a pedal electric vehicle according to claim 1, wherein: the swing rod I (5) is provided with a connecting hole (21), the rear end of the brake cable (10) and/or the connecting piece (9) is provided with an adjusting screw (22), and the adjusting screw (22) passes through the connecting hole (21) and is in threaded connection with an adjusting nut (23).

6. The brake device of a pedal electric vehicle according to claim 1, wherein: the novel bicycle brake further comprises a front wheel disc brake assembly (24) and a rear wheel disc brake assembly (25), wherein the front wheel disc brake assembly (24) and the rear wheel disc brake assembly (25) are connected with a brake pump (7) through oil pipes (26).