CN111516655B

CN111516655B - Brake device

Info

Publication number: CN111516655B
Application number: CN202010412025.8A
Authority: CN
Inventors: 李永建
Original assignee: Hangzhou Fuyang Xinyuan New Energy Co Ltd
Current assignee: Hangzhou Annat Industrial Co ltd
Priority date: 2018-06-06
Filing date: 2018-06-06
Publication date: 2021-05-25
Anticipated expiration: 2038-06-06
Also published as: CN111516655A; CN108725410B; CN111516656A; CN111516656B; CN108725410A

Abstract

The invention belongs to the technical field of braking, and particularly relates to a braking device which comprises a brake pedal, a second fixing plate, a first rack, a trapezoidal guide block spring, a trapezoidal guide block, a rotating shaft, a fourth rack, a pinion, a fan-shaped guide rail and the like, wherein the design that a ring sleeve moves towards the direction of a first telescopic sleeve is that the downward movement amount of one end of a telescopic inner rod positioned in the first telescopic sleeve is larger than the upward movement amount of one end of the telescopic inner rod positioned in a second telescopic sleeve, so that the purposes that: after the pedal connecting rod is pressed down rapidly, the rapid small-amplitude pressing of the pedal connecting rod can enable the brake connecting rod to be pressed down rapidly and greatly, and the brake mechanism can act more rapidly in a very short time.

Description

Brake device

Technical Field

The invention belongs to the technical field of brakes, and particularly relates to a brake device.

Background

At present, for a traditional automobile brake system, when a driver encounters an emergency, the automobile can be rapidly braked by suddenly stepping on the brake, so that the accident of the automobile is avoided. In the process of normally driving the automobile by a driver, the reaction time of the driver in normal hard braking is between 0.4 and 0.5 second, but once an emergency occurs, the reaction time of the driver in hard braking is mostly longer than 1 second, even the reaction time of the driver in panic in hard braking is about 2 seconds; in the 1-2 second emergency brake response time, the automobile is likely to travel a relatively long distance at high speed, increasing the possibility of the automobile touching an accident. In order to reduce the possibility that the driver touches the accident after suddenly stepping on the brake in an emergency, a quick brake mechanism needs to be designed, and the sudden braking time of the quick brake mechanism is shorter than that of the traditional automobile, so that the response time of about 1 second more for the driver is compensated.

The invention designs a brake device to solve the problems.

Disclosure of Invention

In order to solve the defects in the prior art, the invention discloses a brake device which is realized by adopting the following technical scheme.

In the description of the present invention, it should be noted that the terms "inside", "below", "upper" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention usually place when using, and are only used for convenience of description and simplification of description, but do not indicate or imply that the devices or elements indicated must have a specific orientation, be constructed in a specific orientation or be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

A brake device, characterized in that: the brake pedal comprises a brake pedal, a pedal connecting rod, a telescopic rod, a first telescopic sleeve, a telescopic inner rod, a second telescopic sleeve, a sliding rod, a sliding block, a pedal base, a second rack, a first fixing plate, a first steering gear, a second fixing plate, a first rack, a brake connecting rod, a connecting plate, a third fixing plate, a supporting square sleeve, a third rack, a fixing strip, a second hinged block, a fourth fixing plate, a ladder-shaped guide block spring, a ladder-shaped guide block, a ladder-shaped guide groove, a fifth fixing plate, a first hinged block, a telescopic rod spring, a first U-shaped plate, an annular sleeve, a third hinged block, a third U-shaped plate, a second U-shaped plate, a first connecting block, a second connecting block, a rectangular through groove, a rotating shaft, a fourth rack, a pinion, a gearwheel, a second steering gear, a centrifugal wheel, a sixth fixing plate, a fan-shaped guide rail, a seventh fixing plate, a guide pin, a centrifugal block, a centrifugal, A sharp corner, wherein a first fixing plate is arranged on the lower surface of the pedal base; a second fixing plate is arranged at one end of the first fixing plate, which is far away from the pedal base; the upper plate surface of the second fixing plate is provided with a trapezoidal guide groove and a rectangular through groove; the brake pedal is arranged on the upper plate surface of the pedal base through two telescopic rods; the two telescopic rod springs are respectively nested on the two telescopic rods; one end of each telescopic rod spring is arranged on the pedal base, and the other end of each telescopic rod spring is arranged on the brake pedal; one end of the pedal connecting rod is arranged on the lower plate surface of the brake pedal, and the other end of the pedal connecting rod penetrates through the pedal base and is provided with a first U-shaped plate; the pedal connecting rod is positioned between the two telescopic rods; one end of the first telescopic sleeve is provided with a first hinge block; the first hinge block is mounted in the first U-shaped plate by a pin.

One end of the sliding rod is arranged on the pedal base, and the other end of the sliding rod is arranged on the second fixing plate; the sliding block is slidably arranged on the sliding rod; one side of the sliding block is provided with a second hinging block, and the other side of the sliding block is provided with a first connecting block; one end of the first connecting block, which is far away from the sliding block, is provided with a first rack; the first rack penetrates through the rectangular through groove; one end of the second telescopic sleeve is provided with a second U-shaped plate; the second hinge block is arranged in the second U-shaped plate through a pin; the fourth fixing plate is arranged on the second fixing plate and is close to the rectangular through groove; the first change gear is arranged on the fourth fixing plate through a shaft; one end of the second rack is provided with a brake connecting rod, and the other end of the second rack penetrates through the rectangular through groove; the brake connecting rod is positioned at the lower side of the second fixing plate; the first change gear is meshed with the first rack and the second rack respectively.

One end of the telescopic inner rod is slidably arranged in the first telescopic sleeve, and the other end of the telescopic inner rod is slidably arranged in the second telescopic sleeve; the ring sleeve is arranged on the outer circular surface of the telescopic inner rod; a third hinge block is arranged on the outer circular surface of the ring sleeve; one end of the connecting plate is provided with a third U-shaped plate, and the other end of the connecting plate is provided with a trapezoidal guide block; the third hinge block is arranged in the third U-shaped plate through a pin; the ladder-shaped guide block is slidably arranged in the ladder-shaped guide groove; one end of the ladder-shaped guide block spring is arranged on the ladder-shaped guide block, and the other end of the ladder-shaped guide block spring is arranged on the side groove surface of the ladder-shaped guide groove; the ladder-shaped guide block spring is positioned in the ladder-shaped guide groove.

One end of the fixing strip is arranged on the side surface of the pedal connecting rod, and the other end of the fixing strip is provided with a fourth rack; the fixing strip is close to the first U-shaped plate; the fifth fixing plate is arranged on the second fixing plate; the rotating shaft is arranged in a round hole of the fifth fixing plate through a bearing; one end of the rotating shaft is provided with a small gear, and the other end of the rotating shaft is provided with a large gear; the pinion and the bull gear are positioned on two sides of the fifth fixing plate; the fourth rack is meshed with the pinion.

The supporting square sleeve is arranged on the second fixing plate through a third fixing plate; one end of the third rack is arranged on the side surface of the connecting plate through a second connecting block, and the other end of the third rack penetrates through the supporting square sleeve; the sixth fixing plate is arranged on the second fixing plate; the second change gear is arranged on the sixth fixing plate through a shaft; the centrifugal wheel is arranged on the sixth fixing plate through a shaft; the outer circle surface of one end of the centrifugal wheel close to the sixth fixing plate is provided with a tooth; a plurality of centrifugal block sliding grooves are uniformly formed in the outer circular surface of one end, far away from the sixth fixing plate, of the centrifugal wheel along the circumferential direction; the second change gear is positioned between the centrifugal wheel and the large gear; the second change gear is respectively meshed with the engaging tooth on the centrifugal wheel and the large gear; each centrifugal block sliding groove is provided with a centrifugal block; one end of the centrifugal block spring is arranged on the centrifugal block, and the other end of the centrifugal block spring is arranged on the bottom groove surface of the centrifugal block sliding groove; the centrifugal block slides in the centrifugal block sliding groove through a centrifugal block spring; one end of the centrifugal block, which is far away from the centrifugal block spring, is provided with a sharp corner.

The centrifugal block is matched with the third rack.

The guide pin penetrates through the telescopic inner rod and is positioned between the ring sleeve and the second telescopic sleeve; the two fan-shaped guide rails are both arranged on the second fixing plate through a seventh fixing plate; the two fan-shaped guide rails are positioned at two sides of the telescopic inner rod, and the fan-shaped guide rails are positioned between the ring sleeve and the second telescopic sleeve; two ends of the guide pin are respectively and slidably arranged in the two fan-shaped guide rails.

As a further improvement of the technology, the brake connecting rod is connected with a brake system on the automobile, so that the brake system can act by pressing down the brake connecting rod, and the brake system brakes the automobile; after the braking system finishes braking, the braking system can enable the brake connecting rod to reset.

As a further improvement of the present technology, the diameter of the large gear is larger than that of the small gear; the diameter of the second change gear is smaller than that of the bull gear; then, under the condition that the large gear synchronously rotates along with the small gear, the large gear enables the second change gear to rotate, and the rotating speed of the second change gear is always greater than that of the small gear; the design is such that: in the transition of the gearwheel, the second change gear will rotate at a higher rotational speed than the pinion.

As a further improvement of the present technology, the centrifugal wheel and the third rack have a space therebetween, so that when the centrifugal wheel rotates at a slow speed, the amount of the centrifugal block protruding from the centrifugal block sliding groove is small, and the end of the centrifugal block having the sharp angle does not mesh with the third rack; when the centrifugal wheel rotates rapidly, the centrifugal block protrudes from the centrifugal block sliding groove by a large amount, and one end of the centrifugal block with a sharp angle is meshed with the third rack.

As a further improvement of the present technology, the ladder-shaped guide spring is an extension spring.

As a further improvement of the present technique, the ladder guide is located at a middle position of the ladder guide groove when the ladder guide spring is not stretched.

As a further improvement of the technology, when the brake pedal is not pressed down, the telescopic inner rod is in a horizontal state.

As a further improvement of the present technology, the distance from the loop to the first hinge block is S1, and the distance from the loop to the second hinge block is S2; when the ladder guide block is located at the middle position of the ladder guide groove, the loop sleeve is located at the middle position of the first telescopic sleeve and the second telescopic sleeve, and S1 is equal to S2.

As a further improvement of the present technology, the fan-shaped guide rail has an inner arc-shaped plate surface and an outer arc-shaped plate surface; the camber of interior arc face is greater than the camber of outer arc face, such design aim at: when the ring sleeve slides along the telescopic inner rod, the ring sleeve is used as a fulcrum, one end of the telescopic inner rod, which is positioned at the first telescopic sleeve, moves downwards, one end of the telescopic inner rod, which is positioned at the second telescopic sleeve, moves upwards, and then the guide pin can swing upwards in the fan-shaped guide rail around the fulcrum; because the moving positions of the ring sleeves are different, the positions of the ring sleeves as fulcrums are also different, and the swinging tracks of the guide pins are different; the design that the curvature of the inner arc-shaped plate surface in the fan-shaped guide rail is larger than that of the outer arc-shaped plate surface ensures that the fan-shaped guide rail includes the swinging track of the guide pin in the fan-shaped guide rail as far as possible.

The telescopic rod and the telescopic rod spring are designed in such a way that when the brake pedal is pressed down by external force, the telescopic rod and the telescopic rod spring are compressed; after the external force no longer pushes down brake pedal, under the restoring force of telescopic link spring, brake pedal resumes to the primary importance, and the telescopic link is also no longer compressed.

The design purpose of footboard connecting rod, first U template, first flexible cover, flexible interior pole, the flexible cover of second, ring cover, third articulated piece, the articulated piece of second, slider, first connecting block and first rack: when the pedal connecting rod moves downwards, the first U-shaped plate and the first hinge block move downwards along with the pedal connecting rod, and the first hinge block drives the first telescopic sleeve to move downwards; because the ring sleeve and the third hinge block form a fulcrum, one end of the telescopic inner rod positioned in the first telescopic sleeve moves downwards, and one end of the telescopic inner rod positioned in the second telescopic sleeve moves upwards; at the moment, the telescopic inner rod is respectively telescopic in the first telescopic sleeve and the second telescopic sleeve so as to compensate the increase or decrease of the distance between the first hinged block and the second hinged block in the moving process of the first telescopic sleeve and the second telescopic sleeve. When the second telescopic sleeve moves upwards, the second telescopic sleeve drives the second U-shaped plate to move upwards, the second U-shaped plate drives the sliding block to slide upwards on the sliding rod through the second hinge block, and the sliding block drives the first rack to move upwards through the first connecting block. The first change gear is meshed with the first rack and the second rack respectively, so that when the first rack moves upwards, the second rack moves downwards under the change effect of the first deformation gear, the brake connecting rod is pressed downwards, and then a brake system on the automobile acts.

The design that ladder type guide block slidable mounting was in ladder type guide slot lies in, slides in ladder type guide slot's in-process at ladder type guide block, because ladder type guide block and ladder type guide slot are trapezoidal design, so ladder type guide block can not break away from in the ladder type guide slot. The design of third hinge block, ring cover, connecting plate, trapezoidal guide block spring, second connecting block and third rack lies in: when the third rack drives the connecting plate to move in the direction far away from the trapezoidal guide block spring through the second connecting block, the trapezoidal guide block and the third U-shaped plate move along with the connecting plate; the ladder guide spring is stretched; the third U-shaped plate drives the ring sleeve to move towards the first telescopic sleeve along the telescopic inner rod through the third hinge block.

The pedal connecting rod can drive the fourth rack to move downwards through the fixing strip. The small gear and the big gear are both arranged on the rotating shaft, and the small gear can be driven by the rotating shaft to rotate greatly. Pinion and fourth rack mesh mutually, and the second change gear meshes with the rodent on the centrifugal wheel and gear wheel respectively mutually, and centrifugal piece and third rack matched with effect is: firstly, when the fourth rack moves downwards slowly, the fourth rack drives a second steering gear to rotate slowly through a pinion, a rotating shaft and a large gear, the second steering gear drives a centrifugal wheel to rotate slowly, the centrifugal force of a centrifugal block at the moment is smaller, the amount of the centrifugal block extending out of a centrifugal block sliding groove is small, and one end of the centrifugal block with a sharp angle cannot be meshed with the third rack; secondly, when the fourth rack moves downwards rapidly, the fourth rack drives the second change gear to rotate rapidly through the pinion, the rotating shaft and the large gear, the second change gear drives the centrifugal wheel to rotate rapidly, the centrifugal force of the centrifugal block is larger at the moment, the amount of the centrifugal block extending out of the centrifugal block sliding groove is large, one end of the centrifugal block with a sharp angle can be meshed with the third rack, and then the centrifugal wheel drives the third rack to move in the direction away from the trapezoidal guide block spring through the centrifugal block. The centrifugal block spring is designed in such a way that when the centrifugal block extends out of the centrifugal block chute under the centrifugal force, the centrifugal block spring is stretched; after the centrifugal block is not subjected to centrifugal force any more, the centrifugal block spring pulls the centrifugal block back to the centrifugal block sliding groove under the reset action.

The distance from the ring sleeve to the first hinge block is S1, the distance from the ring sleeve to the second hinge block is S2, and the design that the ring sleeve can slide on the telescopic inner rod is as follows: firstly, when the ladder-type guide block is positioned at the middle position of the ladder-type guide groove, the loop is positioned at the middle position of the first telescopic sleeve and the second telescopic sleeve, and S1 is equal to S2, then the downward movement amount of the first telescopic sleeve is equal to the upward movement amount of the second telescopic sleeve when the loop is taken as a fulcrum; second, when the ladder-shaped guide block moves away from the ladder-shaped guide block spring, the loop moves towards the first telescopic sleeve, and S1 is smaller than S2, so that the downward movement of the first telescopic sleeve is smaller than the upward movement of the second telescopic sleeve when the loop is used as a fulcrum. Such a design aims at: when the ring sleeve gets closer to the first telescopic sleeve, the second telescopic sleeve can move upwards by a large margin due to downward small-scale movement of the first telescopic sleeve, the second telescopic sleeve drives the first rack to move upwards by a large margin through the second U-shaped plate, the second hinge block, the sliding block and the first connecting block, and the first rack drives the second rack to move downwards by a large margin through the change gear.

Two ends of the guide pin are respectively arranged in the two fan-shaped guide rails in a sliding manner, and the telescopic inner rod drives the guide pin to swing around a ring sleeve pivot in the fan-shaped guide rails; after the ring sleeve is used as a fulcrum, one end of the telescopic inner rod positioned at the first telescopic sleeve moves downwards, one end of the telescopic inner rod positioned at the second telescopic sleeve moves upwards, at the moment, the guide pin is limited by the fan-shaped guide rail, so that the guide pin limits the telescopic inner rod to move only a small extent in the fan-shaped guide rail along the axial direction of the telescopic inner rod, the fact that one end of the telescopic inner rod positioned at the second telescopic sleeve has sufficient telescopic amount in the second telescopic sleeve in the process that the sliding block moves up and down along the sliding rod is ensured, the situation that the telescopic amount of the telescopic inner rod in the second telescopic sleeve is completely consumed in the moving process of the telescopic inner rod along the axial direction of the telescopic inner rod under the condition that the guide pin is not limited by the end of the telescopic inner rod positioned at the second telescopic sleeve is prevented, the second telescopic sleeve cannot drive the sliding block to slide on the sliding rod continuously through the second hinge block, and finally, the braking effect is affected.

When the brake pedal is not pressed down, the telescopic rod and the telescopic rod spring are compressed and not compressed; the telescopic inner rod is in a horizontal state; the ladder guide spring is not stretched, the ladder guide is located at the middle position of the ladder guide groove, the loop is located at the middle position of the first telescopic sleeve and the second telescopic sleeve, and S1 is equal to S2.

When the brake pedal is slowly pressed down by external force to realize the traditional slow brake effect, the expansion link and the expansion link spring are compressed by the slow pressing of the brake pedal, and the pedal connecting rod is pressed down; the pedal connecting rod drives the fourth rack to move downwards slowly through the fixing strip, the fourth rack drives the second steering gear to rotate slowly through the pinion, the rotating shaft and the large gear, the second steering gear drives the centrifugal wheel to rotate slowly, the centrifugal force of the centrifugal block is smaller at the moment, the amount of the centrifugal block extending out of the centrifugal block sliding groove is small, and one end of the centrifugal block with a sharp angle cannot be meshed with the third rack. In addition, when the pedal connecting rod is pressed down, the pedal connecting rod drives the first U-shaped plate, the first hinge block and the first telescopic sleeve to move downwards slowly; because the ring sleeve is still positioned in the middle of the first telescopic sleeve and the second telescopic sleeve, at the moment, under the condition that the ring sleeve is used as a fulcrum, one end of the telescopic inner rod positioned in the first telescopic sleeve moves downwards slowly, one end of the telescopic inner rod positioned in the second telescopic sleeve moves upwards slowly, the downward movement amount of one end of the telescopic inner rod positioned in the first telescopic sleeve is equal to the upward movement amount of one end of the telescopic inner rod positioned in the second telescopic sleeve, and S1 is still equal to S2; when the second telescopic sleeve moves upwards slowly, the second telescopic sleeve drives the second U-shaped plate to move upwards slowly, the second U-shaped plate drives the sliding block to slide upwards slowly on the sliding rod through the second hinge block, and the sliding block drives the first rack to move upwards slowly through the first connecting block; when the first rack moves upwards slowly, the second rack moves downwards slowly under the turning action of the first deformation gear, the brake connecting rod is pressed downwards slowly, and then a brake system on the automobile acts to brake the automobile slowly.

When the brake pedal is rapidly pressed by external force to realize the traditional emergency braking effect, the rapid pressing of the brake pedal enables the telescopic rod and the telescopic rod spring to be compressed, and the pedal connecting rod is pressed; the pedal connecting rod drives the fourth rack to move downwards rapidly through the fixing strip, the fourth rack drives the second steering gear to rotate rapidly through the pinion, the rotating shaft and the large gear, the second steering gear drives the centrifugal wheel to rotate rapidly, the centrifugal force of the centrifugal block is larger at the moment, the amount of the centrifugal block extending out of the centrifugal block sliding groove is large, the centrifugal block spring is stretched, one end of the centrifugal block with a sharp angle can be meshed with the third rack, and the centrifugal wheel drives the third rack to move towards the direction away from the trapezoidal guide block spring through the centrifugal block; the third rack drives the connecting plate through the second connecting block to move towards the direction of keeping away from trapezoidal guide block spring, and trapezoidal guide block and third U template follow the connecting plate motion, and trapezoidal guide block spring is stretched, and third U template drives the ring cover through the third articulated piece and moves to first flexible cover direction along flexible interior pole. In addition, when the pedal connecting rod is pressed down, the pedal connecting rod drives the first U-shaped plate, the first hinge block and the first telescopic sleeve to move downwards rapidly; because the ring sleeve moves towards the first telescopic sleeve, at the moment, under the condition that the ring sleeve is used as a fulcrum, one end of the telescopic inner rod positioned in the first telescopic sleeve moves downwards rapidly, one end of the telescopic inner rod positioned in the second telescopic sleeve moves upwards rapidly, the downward movement amount of one end of the telescopic inner rod positioned in the first telescopic sleeve is larger than the upward movement amount of one end of the telescopic inner rod positioned in the second telescopic sleeve, and S1 is larger than S2; when the second telescopic sleeve moves upwards rapidly, the second telescopic sleeve drives the second U-shaped plate to move upwards rapidly, the second U-shaped plate drives the sliding block to slide upwards rapidly on the sliding rod through the second hinge block, and the sliding block drives the first rack to move upwards rapidly through the first connecting block; when the first rack moves upwards rapidly, the second rack moves downwards rapidly under the action of the direction change of the first deformation gear, the brake connecting rod is pressed down rapidly, and then the brake system on the automobile acts to brake the automobile urgently. The working effect of the design is that: compared with the traditional emergency braking, when the traditional emergency braking is carried out, the brake connecting rod can be rapidly pressed down after the pedal connecting rod is rapidly pressed down, and the rapid pressing amount of the pedal connecting rod is equal to that of the brake connecting rod; the brake mechanism of the invention can rapidly and greatly press down the brake connecting rod by rapidly and slightly pressing down the pedal connecting rod after the pedal connecting rod is rapidly pressed down, so that the rapid pressing down amount of the brake connecting rod in the traditional brake mechanism can be realized by the brake connecting rod after the pedal connecting rod is rapidly pressed down for a short amount in a very short time, and finally the brake mechanism can more rapidly act in a very short time to rapidly brake the automobile. The brake mechanism can shorten the action time of emergency braking in the traditional brake mechanism, and can stop the automobile more quickly after the automobile meets emergency, thereby reducing the possibility that the automobile touches an accident after the driver suddenly steps on the brake in the emergency, and protecting the safety of the driver more.

When the brake pedal is not pressed any more, the brake pedal returns under the resetting of the telescopic rod and the telescopic rod spring; the return of the brake pedal drives the pedal connecting rod to move upwards, and the pedal connecting rod drives the telescopic inner rod to return to a horizontal state through the first U-shaped plate, the first hinge block and the first telescopic sleeve; one end of the telescopic inner rod, which is positioned in the first telescopic sleeve, moves upwards, one end of the telescopic inner rod, which is positioned in the second telescopic sleeve, moves downwards, the second telescopic sleeve drives the second U-shaped plate to move downwards, the second U-shaped plate drives the sliding block to slide downwards on the sliding rod to an original position through the second hinge block, and the sliding block drives the first rack to move downwards through the first connecting block; the first rack drives the second rack to return through the first change gear. Under the reset force of the ladder-shaped guide block spring, the ladder-shaped guide block returns to the original position, the ladder-shaped guide block drives the connecting plate, the third U-shaped plate, the third hinge block and the ring sleeve to return to the original position, and the ring sleeve is located in the middle of the first telescopic sleeve and the second telescopic sleeve again. After the centrifugal wheel does not rotate any more, the centrifugal block enters the centrifugal block sliding groove again under the reset force of the centrifugal block spring.

Compared with the traditional brake technology, the centrifugal wheel, the sharp corner of the centrifugal block and the centrifugal block spring are designed so that when the centrifugal wheel rotates at a low speed, the sharp corner on the centrifugal block cannot be meshed with the third rack by the small centrifugal force generated by the centrifugal block; when the centrifugal wheel rotates rapidly, the sharp corner on the centrifugal block is meshed with the third rack by the large centrifugal force generated by the centrifugal block, the centrifugal block drives the third rack to move, and then the ring sleeve can move towards the first telescopic sleeve along the telescopic inner rod. The design that the ring cover removed to first flexible cover direction is so, and the one end gross shift volume that flexible interior pole is arranged in first flexible cover is greater than the one end gross shift volume that flexible interior pole is arranged in the flexible cover of second, just so can realize: after the pedal connecting rod is pressed down rapidly, the rapid small-amplitude pressing of the pedal connecting rod can enable the brake connecting rod to be pressed down rapidly and greatly, and the brake mechanism can act more rapidly in a very short time. The invention has simple mechanism and better use effect.

Drawings

FIG. 1 is a schematic view of a braking mechanism.

FIG. 2 is a schematic sectional elevational view of the brake mechanism.

Fig. 3 is a cross-sectional view of the second fixing plate.

Figure 4 is a schematic view of a collar installation.

Fig. 5 is a fourth rack mounting schematic.

Fig. 6 is a schematic view of the installation of the telescopic inner rod.

Fig. 7 is a schematic view of the first rack mounting.

Fig. 8 is a third rack mounting schematic.

Fig. 9 is a first direction change gear installation schematic.

Figure 10 is a guide pin installation schematic.

FIG. 11 is a schematic diagram of an elevation view of an installation section of an eccentric mass.

FIG. 12 is a schematic view of a centrifugal wheel.

FIG. 13 is a schematic diagram of a centrifuge block configuration.

Fig. 14 is a schematic view of a fan-shaped guide rail structure.

Number designation in the figures: 1. a brake pedal; 2. a pedal connecting rod; 3. a telescopic rod; 4. a first telescopic sleeve; 5. a telescopic inner rod; 6. a second telescopic sleeve; 7. a slide bar; 8. a slider; 9. a pedal base; 10. a second rack; 12. a first fixing plate; 13. a first change gear; 14. a second fixing plate; 15. a first rack; 16. a brake connecting rod; 17. a connecting plate; 18. a third fixing plate; 19. supporting the square sleeve; 20. a third rack; 22. A fixing strip; 23. a second hinge block; 24. a fourth fixing plate; 25. a ladder-type guide block spring; 26. a ladder-shaped guide block; 27. a ladder-shaped guide groove; 28. a fifth fixing plate; 30. a first hinge block; 32. a telescopic rod spring; 34. a first U-shaped plate; 35. sleeving a ring; 36. a third hinge block; 37. a third U-shaped plate; 38. a second U-shaped plate; 39. a first connection block; 42. a second connecting block; 43. a rectangular through groove; 44. a rotating shaft; 50. a fourth rack; 51. a pinion gear; 52. a bull gear; 53. a second change gear; 54. a centrifugal wheel; 55. a sixth fixing plate; 56. a fan-shaped guide rail; 57. a seventh fixing plate; 58. a guide pin; 59. a centrifugal block; 60. a centrifugal block spring; 61. a centrifugal block chute; 62. sharp corners; 63. an inner arc-shaped plate surface; 64. an outer arc plate surface.

Detailed Description

As shown in fig. 1, 2 and 4, the brake pedal comprises a brake pedal 1, a pedal connecting rod 2, an expansion rod 3, a first expansion sleeve 4, an expansion inner rod 5, a second expansion sleeve 6, a sliding rod 7, a sliding block 8, a pedal base 9, a second rack 10, a first fixing plate 12, a first change gear 13, a second fixing plate 14, a first rack 15, a brake connecting rod 16, a connecting plate 17, a third fixing plate 18, a supporting square sleeve 19, a third rack 20, a fixing strip 22, a second hinge block 23, a fourth fixing plate 24, a ladder-shaped guide block spring 25, a ladder-shaped guide block 26, a ladder-shaped guide groove 27, a fifth fixing plate 28, a first hinge block 30, an expansion rod spring 32, a first U-shaped plate 34, a ring sleeve 35, a third hinge block 36, a third U-shaped plate 37, a second U-shaped plate 38, a first connecting block 39, a second connecting block 42, a rectangular through groove 43, a rotating shaft 44, a fourth rack 50, a pinion 51, a bull gear 52, A second direction-changing gear 53, a centrifugal wheel 54, a sixth fixing plate 55, a fan-shaped guide rail 56, a seventh fixing plate 57, a guide pin 58, a centrifugal block 59, a centrifugal block spring 60, a centrifugal block chute 61 and a sharp corner 62, as shown in fig. 1 and 3, wherein the first fixing plate 12 is mounted on the lower surface of the pedal base 9; a second fixing plate 14 is arranged at one end of the first fixing plate 12 far away from the pedal base 9; as shown in fig. 3 and 9, the second fixing plate 14 is provided with a ladder-shaped guide groove 27 and a rectangular through groove 43 on the upper plate surface; as shown in fig. 3, the brake pedal 1 is mounted on the upper plate surface of the pedal base 9 through two telescopic rods 3; the two telescopic rod springs 32 are respectively nested on the two telescopic rods 3; one end of each telescopic rod spring 32 is arranged on the pedal base 9, and the other end is arranged on the brake pedal 1; as shown in fig. 1 and 5, one end of the pedal connecting rod 2 is installed on the lower plate surface of the brake pedal 1, and the other end passes through the pedal base 9 and is installed with a first U-shaped plate 34; the pedal connecting rod 2 is positioned between the two telescopic rods 3; as shown in fig. 4 and 6, a first hinge block 30 is mounted at one end of the first telescopic sleeve 4; the first hinge block 30 is mounted in the first U-shaped plate 34 by means of pins.

As shown in fig. 1 and 7, one end of the slide rod 7 is mounted on the pedal base 9, and the other end is mounted on the second fixing plate 14; the sliding block 8 is slidably arranged on the sliding rod 7; one side of the sliding block 8 is provided with a second hinging block 23, and the other side is provided with a first connecting block 39; one end of the first connecting block 39, which is far away from the sliding block 8, is provided with a first rack 15; the first rack 15 passes through the rectangular through slot 43; as shown in fig. 4, one end of the second telescopic sleeve 6 is provided with a second U-shaped plate 38; the second hinge block 23 is mounted in the second U-shaped plate 38 by means of pins; as shown in fig. 9, the fourth fixing plate 24 is mounted on the second fixing plate 14, and the fourth fixing plate 24 is close to the rectangular through slot 43; the first change gear 13 is mounted on the fourth fixing plate 24 through a shaft; as shown in fig. 1, one end of the second rack 10 is provided with a brake link 16, and the other end passes through the rectangular through slot 43; the brake link 16 is positioned at the lower side of the second fixing plate 14; as shown in fig. 2, the first direction changing gear 13 is engaged with the first rack 15 and the second rack 10, respectively.

As shown in fig. 6, one end of the telescopic inner rod 5 is slidably mounted in the first telescopic sleeve 4, and the other end is slidably mounted in the second telescopic sleeve 6; the ring sleeve 35 is arranged on the outer circular surface of the telescopic inner rod 5; a third hinge block 36 is arranged on the outer circular surface of the ring sleeve 35; as shown in fig. 8, one end of the connecting plate 17 is provided with a third U-shaped plate 37, and the other end is provided with a ladder-shaped guide block 26; as shown in fig. 4, the third hinge block 36 is mounted in a third U-shaped plate 37 by means of pins; as shown in fig. 2 and 8, the ladder guide block 26 is slidably mounted in the ladder guide groove 27; one end of the ladder-shaped guide block spring 25 is arranged on the ladder-shaped guide block 26, and the other end is arranged on the side groove surface of the ladder-shaped guide groove 27; the ladder guide spring 25 is located in the ladder guide groove 27.

As shown in fig. 5, one end of the fixing bar 22 is installed on the side of the pedal link 2, and the other end is installed with a fourth rack 50; the fixing strip 22 is close to the first U-shaped plate 34; as shown in fig. 9, the fifth fixing plate 28 is mounted on the second fixing plate 14; the rotating shaft 44 is mounted in a circular hole of the fifth fixing plate 28 through a bearing; a pinion 51 is mounted at one end of the rotating shaft 44, and a bull gear 52 is mounted at the other end; the pinion gear 51 and the bull gear 52 are located on both sides of the fifth fixing plate 28; as shown in fig. 1, the fourth rack 50 is engaged with the pinion 51.

As shown in fig. 9, the supporting square sleeve 19 is mounted on the second fixing plate 14 through the third fixing plate 18; as shown in fig. 8, one end of the third rack 20 is mounted on the side of the connecting plate 17 through the second connecting block 42, and the other end passes through the supporting square sleeve 19; as shown in fig. 8 and 9, the sixth fixing plate 55 is mounted on the second fixing plate 14; the second direction-changing gear 53 is mounted on the sixth fixing plate 55 through a shaft; the centrifugal wheel 54 is mounted on a sixth fixing plate 55 through a shaft; the centrifugal wheel 54 has a tooth on the outer circular surface of one end close to the sixth fixing plate 55; as shown in fig. 9 and 12, a plurality of centrifugal block sliding slots 61 are uniformly formed in the circumferential direction on the outer circumferential surface of one end of the centrifugal wheel 54 away from the sixth fixing plate 55; as shown in fig. 11, the second direction-changing gear 53 is located between the centrifugal wheel 54 and the large gear 52; the second change gear 53 is respectively meshed with the tooth on the centrifugal wheel 54 and the large gear 52; as shown in fig. 11 and 13, each centrifugal block sliding groove 61 is provided with a centrifugal block 59; one end of the centrifugal block spring 60 is arranged on the centrifugal block 59, and the other end is arranged on the bottom groove surface of the centrifugal block sliding groove 61; the centrifugal block 59 slides in the centrifugal block sliding groove 61 through the centrifugal block spring 60; the end of eccentric mass 59 remote from eccentric mass spring 60 has a pointed corner 62.

The centrifugal block 59 is engaged with the third rack 20.

As shown in fig. 6, the guide pin 58 passes through the telescopic inner rod 5, and the guide pin 58 is located between the ring sleeve 35 and the second telescopic sleeve 6; as shown in fig. 1 and 9, the two fan-shaped guide rails 56 are mounted on the second fixing plate 14 through a seventh fixing plate 57; as shown in fig. 1 and 10, two fan-shaped guide rails 56 are located on both sides of the telescopic inner rod 5, and the fan-shaped guide rails 56 are located between the loop 35 and the second telescopic sleeve 6; the guide pins 58 are slidably mounted at both ends thereof in the two sector guide rails 56, respectively.

The brake connecting rod 16 is connected with a brake system on the automobile, so that the brake system can act by pressing the brake connecting rod 16, and the brake system brakes the automobile; after the braking system has finished braking, the braking system may reset the brake link 16.

As shown in fig. 11, the diameter of the large gear 52 is larger than that of the small gear 51; the diameter of the second direction changing gear 53 is smaller than that of the large gear 52; then, in the case where the large gear 52 rotates in synchronization with the small gear 51, the large gear 52 rotates the second direction changing gear 53, and the rotational speed of the second direction changing gear 53 is always greater than that of the small gear 51; the design is such that: in the transition of the gearwheel 52, the second change gear 53 will rotate at a higher rotational speed than the pinion 51.

As shown in fig. 11, the centrifugal wheel 54 is spaced from the third rack 20, so that when the centrifugal wheel 54 rotates slowly, the centrifugal block 59 protrudes from the centrifugal block sliding groove 61 by a small amount, and the end of the centrifugal block 59 having the sharp corner 62 does not engage with the third rack 20; when the centrifugal wheel 54 rotates rapidly, the centrifugal block 59 protrudes from the centrifugal block sliding groove 61 by a large amount, and the end of the centrifugal block 59 having the sharp corner 62 is engaged with the third rack 20.

The ladder guide spring 25 is an extension spring.

As shown in fig. 2, when the ladder guide spring 25 is not extended, the ladder guide 26 is located at a middle position of the ladder guide groove 27.

As shown in fig. 2, when the brake pedal 1 is not depressed, the telescopic inner lever 5 is in a horizontal state.

As shown in fig. 4, the distance from the collar 35 to the first hinge block 30 is S1, and the distance from the collar 35 to the second hinge block 23 is S2; when the ladder guide 26 is located at the middle position of the ladder guide 27, the loop 35 is located at the middle position of the first telescopic sleeve 4 and the second telescopic sleeve 6, and S1 is equal to S2.

As shown in fig. 14, the fan-shaped guide rail 56 has an inner arc-shaped plate surface 63 and an outer arc-shaped plate surface 64; the curvature of interior arc face 63 is greater than the curvature of outer arc face 64, and such design aim at: when the ring sleeve 35 slides along the telescopic inner rod 5, and the ring sleeve 35 is used as a fulcrum, one end of the telescopic inner rod 5, which is located at the first telescopic sleeve 4, moves downwards, one end of the telescopic inner rod 5, which is located at the second telescopic sleeve 6, moves upwards, and then the guide pin 58 swings upwards in the fan-shaped guide rail 56 around the fulcrum; because the moving positions of the ring sleeve 35 are different, the positions of the ring sleeve 35 as a fulcrum are also different, and the swinging tracks of the guide pins 58 are different; the greater curvature of the inner arcuate surface 63 than the outer arcuate surface 64 of the fan track 56 ensures that the fan track 56 includes as much of the path of the guide pin 58 as possible in the fan track 56.

The telescopic rod 3 and the telescopic rod spring 32 are designed in such a way that when the brake pedal 1 is pressed down by an external force, the telescopic rod 3 and the telescopic rod spring 32 are compressed; after the brake pedal 1 is no longer pressed down by external force, the brake pedal 1 is restored to the original position under the restoring force of the telescopic rod spring 32, and the telescopic rod 3 is no longer compressed.

The design purpose of footboard connecting rod 2, first U type board 34, first flexible cover 4, flexible interior pole 5, the flexible cover 6 of second, ring cover 35, third articulated piece 36, the articulated piece 23 of second, slider 8, first connecting block 39 and first rack 15: when the pedal connecting rod 2 moves downwards, the first U-shaped plate 34 and the first hinging block 30 move downwards along with the pedal connecting rod 2, and the first hinging block 30 drives the first telescopic sleeve 4 to move downwards; since the ring sleeve 35 and the third hinge block 36 form a fulcrum, one end of the telescopic inner rod 5 in the first telescopic sleeve 4 moves downwards, and one end of the telescopic inner rod 5 in the second telescopic sleeve 6 moves upwards; at this time, the telescopic inner rod 5 is respectively telescopic in the first telescopic sleeve 4 and the second telescopic sleeve 6, so that the distance between the first hinge block 30 and the second hinge block 23 is increased or reduced in the moving process of the first telescopic sleeve 4 and the second telescopic sleeve 6. When the second telescopic sleeve 6 moves upwards, the second telescopic sleeve 6 drives the second U-shaped plate 38 to move upwards, the second U-shaped plate 38 drives the sliding block 8 to slide upwards on the sliding rod 7 through the second hinge block 23, and the sliding block 8 drives the first rack 15 to move upwards through the first connecting block 39. The first change gear 13 is respectively meshed with the first rack 15 and the second rack 10, so that when the first rack 15 moves upwards, the second rack 10 moves downwards under the change effect of the first deformation gear, the brake connecting rod 16 is pressed downwards, and then a brake system on the automobile acts.

The design of the ladder guide block 26 slidably mounted in the ladder guide groove 27 is that the ladder guide block 26 is not separated from the ladder guide groove 27 because the ladder guide block 26 and the ladder guide groove 27 are both of a ladder design in the process of sliding the ladder guide block 26 in the ladder guide groove 27. The third hinge block 36, the loop 35, the connecting plate 17, the ladder guide block 26, the ladder guide block spring 25, the second connecting block 42 and the third rack 20 are designed in such a way that: when the third rack 20 drives the connecting plate 17 to move in the direction away from the trapezoidal guide block spring 25 through the second connecting block 42, the trapezoidal guide block 26 and the third U-shaped plate 37 move along with the connecting plate 17; the ladder guide spring 25 is stretched; the third U-shaped plate 37 drives the ring sleeve 35 to move along the telescopic inner rod 5 to the first telescopic sleeve 4 through the third hinge block 36.

In the present invention, the pedal link 2 can drive the fourth rack 50 to move downward through the fixing strip 22. The small gear 51 and the large gear 52 are both mounted on the rotating shaft 44, so that the small gear 51 can be rotated by the rotating shaft 44. The pinion 51 is meshed with the fourth rack 50, the second change gear 53 is respectively meshed with a tooth on the centrifugal wheel 54 and the large gear 52, and the centrifugal block 59 and the third rack 20 are matched for the following functions: firstly, when the fourth rack 50 moves downwards slowly, the fourth rack 50 drives the second change gear 53 to rotate slowly through the pinion 51, the rotating shaft 44 and the bull gear 52, the second change gear 53 drives the centrifugal wheel 54 to rotate slowly, the centrifugal force of the centrifugal block 59 is small at the moment, the amount of the centrifugal block 59 protruding from the centrifugal block chute 61 is small, and the end of the centrifugal block 59 with the sharp corner 62 cannot be meshed with the third rack 20; secondly, when the fourth rack 50 moves downward rapidly, the fourth rack 50 drives the second direction changing gear 53 to rotate rapidly through the pinion 51, the rotating shaft 44 and the bull gear 52, the second direction changing gear 53 drives the centrifugal wheel 54 to rotate rapidly, the centrifugal force of the centrifugal block 59 is large at this time, the amount of the centrifugal block 59 protruding from the centrifugal block chute 61 is large, one end of the centrifugal block 59 having the sharp corner 62 is meshed with the third rack 20, and the centrifugal wheel 54 drives the third rack 20 to move away from the trapezoidal guide block spring 25 through the centrifugal block 59. The centrifugal mass spring 60 is designed such that the centrifugal mass spring 60 is stretched when the centrifugal mass 59 is extended out of the centrifugal mass slide groove 61 under centrifugal force; after centrifugal mass 59 is no longer subjected to centrifugal force, centrifugal mass spring 60 pulls centrifugal mass 59 back into centrifugal mass slide 61 under the action of a return force.

The distance from the ring 35 to the first hinge block 30 is S1, the distance from the ring 35 to the second hinge block 23 is S2, and the design that the ring 35 can slide on the telescopic inner rod 5 is as follows: first, when the ladder guide 26 is located at the middle position of the ladder guide 27, the loop 35 is located at the middle position of the first telescopic sleeve 4 and the second telescopic sleeve 6, and S1 is equal to S2, then the downward movement of the first telescopic sleeve 4 is equal to the upward movement of the second telescopic sleeve 6 with the loop 35 as a fulcrum; second, when the ladder guide 26 moves away from the ladder guide spring 25, the collar 35 moves toward the first telescopic sleeve 4, and S1 is smaller than S2, so that the downward movement of the first telescopic sleeve 4 is smaller than the upward movement of the second telescopic sleeve 6 with the collar 35 as a fulcrum. Such a design aims at: when the ring sleeve 35 gets closer to the first telescopic sleeve 4, the second telescopic sleeve 6 can move upwards by a large margin due to the downward small-scale movement of the first telescopic sleeve 4, and then the second telescopic sleeve 6 drives the first rack 15 to move upwards by a large margin through the second U-shaped plate 38, the second hinge block 23, the sliding block 8 and the first connecting block 39, and the first rack 15 drives the second rack 10 to move downwards by a large margin through the change gear.

Two ends of the guide pin 58 are respectively arranged in the two fan-shaped guide rails 56 in a sliding manner, and the telescopic inner rod 5 drives the guide pin 58 to swing around the fulcrum of the ring sleeve 35 in the fan-shaped guide rails 56; after the ring sleeve 35 is used as a fulcrum, one end of the telescopic inner rod 5, which is located at the first telescopic sleeve 4, moves downwards, one end of the telescopic inner rod 5, which is located at the second telescopic sleeve 6, moves upwards, and at the same time, because the guide pin 58 is limited by the fan-shaped guide rail 56, the guide pin 58 limits that the telescopic inner rod 5 can only move along the axial direction of the telescopic inner rod 5 in the fan-shaped guide rail 56, so that in the process that the slide block 8 moves up and down along the slide rod 7, one end of the telescopic inner rod 5, which is located at the second telescopic sleeve 6, has sufficient telescopic amount in the second telescopic sleeve 6, and prevents one end of the telescopic inner rod 5, which is located at the second telescopic sleeve 6, from consuming the telescopic amount of the telescopic inner rod 5 in the second telescopic sleeve 6 in the process of moving along the axial direction of the telescopic inner rod 5 without the limitation of the guide pin 58, so that the second telescopic sleeve 6 cannot drive the slide block 8 to slide, eventually, the brake link 16 cannot be pressed down continuously, which affects the braking effect.

The specific implementation mode is as follows: when the brake pedal 1 is not pressed down, the telescopic rod 3 and the telescopic rod spring 32 are compressed and not compressed; the telescopic inner rod 5 is in a horizontal state; the ladder guide spring 25 is not stretched, the ladder guide 26 is located at the middle position of the ladder guide groove 27, the loop 35 is located at the middle position of the first telescopic sleeve 4 and the second telescopic sleeve 6, and S1 is equal to S2.

When the brake pedal 1 is slowly pressed down by external force to realize the traditional slow braking effect, the expansion link 3 and the expansion link spring 32 are compressed by the slow pressing of the brake pedal 1, and the pedal connecting rod 2 is pressed down; the pedal connecting rod 2 drives the fourth rack 50 to move downwards slowly through the fixing strip 22, the fourth rack 50 drives the second change gear 53 to rotate slowly through the pinion 51, the rotating shaft 44 and the large gear 52, the second change gear 53 drives the centrifugal wheel 54 to rotate slowly, the centrifugal force of the centrifugal block 59 is small, the amount of the centrifugal block 59 extending out of the centrifugal block sliding groove 61 is small, and one end of the centrifugal block 59 with a sharp corner 62 cannot be meshed with the third rack 20. In addition, when the pedal connecting rod 2 is pressed down, the pedal connecting rod 2 drives the first U-shaped plate 34, the first hinge block 30 and the first telescopic sleeve 4 to move downwards slowly; because the ring sleeve 35 is still located in the middle position between the first telescopic sleeve 4 and the second telescopic sleeve 6, at this time, with the ring sleeve 35 as a fulcrum, one end of the telescopic inner rod 5 located in the first telescopic sleeve 4 moves downwards slowly, one end of the telescopic inner rod 5 located in the second telescopic sleeve 6 moves upwards slowly, and the downward movement amount of one end of the telescopic inner rod 5 located in the first telescopic sleeve 4 is equal to the upward movement amount of one end of the telescopic inner rod 5 located in the second telescopic sleeve 6, that is, S1 is still equal to S2; when the second telescopic sleeve 6 moves upwards slowly, the second telescopic sleeve 6 drives the second U-shaped plate 38 to move upwards slowly, the second U-shaped plate 38 drives the sliding block 8 to slide upwards slowly on the sliding rod 7 through the second hinge block 23, and the sliding block 8 drives the first rack 15 to move upwards slowly through the first connecting block 39; when the first rack 15 moves upwards slowly, under the action of the direction change of the first deformation gear, the second rack 10 moves downwards slowly, the brake connecting rod 16 is pressed downwards slowly, and then a brake system on the automobile acts to brake the automobile slowly.

When the brake pedal 1 is rapidly pressed by external force to realize the traditional emergency braking effect, the rapid pressing of the brake pedal 1 enables the telescopic rod 3 and the telescopic rod spring 32 to be compressed, and the pedal connecting rod 2 is pressed; the pedal connecting rod 2 drives the fourth rack 50 to rapidly move downwards through the fixing strip 22, the fourth rack 50 drives the second change gear 53 to rapidly rotate through the pinion 51, the rotating shaft 44 and the large gear 52, the second change gear 53 drives the centrifugal wheel 54 to rapidly rotate, the centrifugal force of the centrifugal block 59 is larger at the moment, the amount of the centrifugal block 59 extending out of the centrifugal block chute 61 is larger, the centrifugal block spring 60 is stretched, one end of the centrifugal block 59 with a sharp corner 62 is meshed with the third rack 20, and the centrifugal wheel 54 drives the third rack 20 to move towards the direction far away from the trapezoid guide block spring 25 through the centrifugal block 59; the third rack 20 drives the connecting plate 17 to move in the direction away from the trapezoidal guide block spring 25 through the second connecting block 42, the trapezoidal guide block 26 and the third U-shaped plate 37 move along the connecting plate 17, the trapezoidal guide block spring 25 is stretched, and the third U-shaped plate 37 drives the ring sleeve 35 to move in the direction of the first telescopic sleeve 4 along the telescopic inner rod 5 through the third hinge block 36. In addition, when the pedal connecting rod 2 is pressed down, the pedal connecting rod 2 drives the first U-shaped plate 34, the first hinge block 30 and the first telescopic sleeve 4 to rapidly move downwards; because the ring sleeve 35 moves towards the first telescopic sleeve 4, at this time, under the condition that the ring sleeve 35 serves as a fulcrum, one end of the telescopic inner rod 5 located in the first telescopic sleeve 4 moves downwards rapidly, one end of the telescopic inner rod 5 located in the second telescopic sleeve 6 moves upwards rapidly, the downward movement amount of one end of the telescopic inner rod 5 located in the first telescopic sleeve 4 is larger than the upward movement amount of one end of the telescopic inner rod 5 located in the second telescopic sleeve 6, and S1 is larger than S2; when the second telescopic sleeve 6 rapidly moves upwards, the second telescopic sleeve 6 drives the second U-shaped plate 38 to rapidly move upwards, the second U-shaped plate 38 drives the sliding block 8 to rapidly slide upwards on the sliding rod 7 through the second hinge block 23, and the sliding block 8 drives the first rack 15 to rapidly move upwards through the first connecting block 39; when the first rack 15 moves upwards rapidly, the second rack 10 moves downwards rapidly under the action of the direction change of the first deformation gear, the brake connecting rod 16 is pressed down rapidly, and the brake system on the automobile acts to brake the automobile rapidly. The working effect of the design is that: compared with the traditional emergency braking, when the pedal connecting rod 2 is pressed down rapidly in the traditional emergency braking, the brake connecting rod 16 is also pressed down rapidly, and only the rapid pressing amount of the pedal connecting rod 2 is equal to the rapid pressing amount of the brake connecting rod 16; in the brake mechanism of the present invention, after the pedal link 2 is rapidly depressed, rapid small-amplitude depression of the pedal link 2 can rapidly and greatly depress the brake link 16, so that after the pedal link 2 is rapidly depressed by a short amount in a very short time, the brake link 16 can achieve rapid depression of the brake link 16 in a conventional brake mechanism during sudden braking, and finally the brake mechanism can more rapidly operate in a very short time to perform sudden braking on an automobile. The brake mechanism can shorten the action time of emergency braking in the traditional brake mechanism, and can stop the automobile more quickly after the automobile meets emergency, thereby reducing the possibility that the automobile touches an accident after the driver suddenly steps on the brake in the emergency, and protecting the safety of the driver more.

When the brake pedal 1 is not pressed down any more, the brake pedal 1 returns under the reset of the telescopic rod 3 and the telescopic rod spring 32; the return of the brake pedal 1 drives the pedal connecting rod 2 to move upwards, and the pedal connecting rod 2 drives the telescopic inner rod 5 to return to a horizontal state through the first U-shaped plate 34, the first hinge block 30 and the first telescopic sleeve 4; one end of the telescopic inner rod 5, which is positioned in the first telescopic sleeve 4, moves upwards, one end of the telescopic inner rod 5, which is positioned in the second telescopic sleeve 6, moves downwards, the second telescopic sleeve 6 drives the second U-shaped plate 38 to move downwards, the second U-shaped plate 38 drives the sliding block 8 to slide downwards on the sliding rod 7 to an original position through the second hinge block 23, and the sliding block 8 drives the first rack 15 to move downwards through the first connecting block 39; the first rack 15 drives the second rack 10 to return through the first change gear 13. Under the restoring force of the ladder-type guide block spring 25, the ladder-type guide block 26 returns to the original position, the ladder-type guide block 26 drives the connecting plate 17, the third U-shaped plate 37, the third hinge block 36 and the ring sleeve 35 to return to the original position, and the ring sleeve 35 is located at the middle position of the first telescopic sleeve 4 and the second telescopic sleeve 6 again. After the centrifugal wheel 54 no longer rotates, the centrifugal mass 59 enters the centrifugal mass gate 61 again under the restoring force of the centrifugal mass spring 60.

In conclusion, the invention has the main beneficial effects that: the centrifugal wheel 54, the sharp corner 62 of the centrifugal block 59 and the centrifugal block spring 60 are designed such that when the centrifugal wheel 54 rotates at a slow speed, the sharp corner 62 on the centrifugal block 59 cannot be engaged with the third rack 20 by the small centrifugal force generated by the centrifugal block 59; when the centrifugal wheel 54 rotates rapidly, the sharp corner 62 on the centrifugal block 59 is engaged with the third rack 20 by the large centrifugal force generated by the centrifugal block 59, the centrifugal block 59 drives the third rack 20 to move, and then the ring sleeve 35 can move along the telescopic inner rod 5 towards the first telescopic sleeve 4. The design that the ring cover 35 moves to the first telescopic sleeve 4 direction is such that the amount of downward movement of the end of the telescopic inner rod 5 located in the first telescopic sleeve 4 is greater than the amount of upward movement of the end of the telescopic inner rod 5 located in the second telescopic sleeve 6, thus realizing: after the pedal connecting rod 2 is pressed down rapidly, the rapid small-amplitude pressing of the pedal connecting rod 2 can enable the brake connecting rod 16 to be pressed down rapidly and greatly, and the brake mechanism can act more rapidly in a very short time. The invention has simple mechanism and better use effect.

Claims

1. The utility model provides a brake equipment, includes brake pedal, footboard connecting rod, flexible interior pole, first rack, first change gear and first rack toothing, its characterized in that: the brake pedal comprises a telescopic rod, a first telescopic sleeve, a second telescopic sleeve, a sliding rod, a sliding block, a pedal base, a second rack, a first fixing plate, a second fixing plate, a brake connecting rod, a connecting plate, a third fixing plate, a supporting square sleeve, a third rack, a fixing strip, a second hinging block, a fourth fixing plate, a trapezoidal guide block spring, a trapezoidal guide block, a trapezoidal guide groove, a fifth fixing plate, a first hinging block, a telescopic rod spring, a first U-shaped plate, an annular sleeve, a third hinging block, a third U-shaped plate, a second U-shaped plate, a first connecting block, a second connecting block, a rectangular through groove, a rotating shaft, a fourth rack, a pinion, a gearwheel, a second steering gear, a centrifugal wheel, a sixth fixing plate, a fan-shaped guide rail, a seventh fixing plate, a guide pin, a centrifugal block spring, a centrifugal block sliding groove and a sharp corner, wherein the first fixing plate is installed on the lower surface; a second fixing plate is arranged at one end of the first fixing plate, which is far away from the pedal base; the upper plate surface of the second fixing plate is provided with a trapezoidal guide groove and a rectangular through groove; the brake pedal is arranged on the upper plate surface of the pedal base through two telescopic rods; the two telescopic rod springs are respectively nested on the two telescopic rods; one end of each telescopic rod spring is arranged on the pedal base, and the other end of each telescopic rod spring is arranged on the brake pedal; one end of the pedal connecting rod is arranged on the lower plate surface of the brake pedal, and the other end of the pedal connecting rod penetrates through the pedal base and is provided with a first U-shaped plate; the pedal connecting rod is positioned between the two telescopic rods; one end of the first telescopic sleeve is provided with a first hinge block; the first hinge block is arranged in the first U-shaped plate through a pin;

one end of the sliding rod is arranged on the pedal base, and the other end of the sliding rod is arranged on the second fixing plate; the sliding block is slidably arranged on the sliding rod; one side of the sliding block is provided with a second hinging block, and the other side of the sliding block is provided with a first connecting block; one end of the first connecting block, which is far away from the sliding block, is provided with a first rack; the first rack penetrates through the rectangular through groove; one end of the second telescopic sleeve is provided with a second U-shaped plate; the second hinge block is arranged in the second U-shaped plate through a pin; the fourth fixing plate is arranged on the second fixing plate and is close to the rectangular through groove; the first change gear is arranged on the fourth fixing plate through a shaft; one end of the second rack is provided with a brake connecting rod, and the other end of the second rack penetrates through the rectangular through groove; the brake connecting rod is positioned at the lower side of the second fixing plate; the first change gear is respectively meshed with the first rack and the second rack;

one end of the telescopic inner rod is slidably arranged in the first telescopic sleeve, and the other end of the telescopic inner rod is slidably arranged in the second telescopic sleeve; the ring sleeve is arranged on the outer circular surface of the telescopic inner rod; a third hinge block is arranged on the outer circular surface of the ring sleeve; one end of the connecting plate is provided with a third U-shaped plate, and the other end of the connecting plate is provided with a trapezoidal guide block; the third hinge block is arranged in the third U-shaped plate through a pin; the ladder-shaped guide block is slidably arranged in the ladder-shaped guide groove; one end of the ladder-shaped guide block spring is arranged on the ladder-shaped guide block, and the other end of the ladder-shaped guide block spring is arranged on the side groove surface of the ladder-shaped guide groove; the ladder-shaped guide block spring is positioned in the ladder-shaped guide groove;

one end of the fixing strip is arranged on the side surface of the pedal connecting rod, and the other end of the fixing strip is provided with a fourth rack; the fixing strip is close to the first U-shaped plate; the fifth fixing plate is arranged on the second fixing plate; the rotating shaft is arranged in a round hole of the fifth fixing plate through a bearing; one end of the rotating shaft is provided with a small gear, and the other end of the rotating shaft is provided with a large gear; the pinion and the bull gear are positioned on two sides of the fifth fixing plate; the fourth rack is meshed with the pinion;

the supporting square sleeve is arranged on the second fixing plate through a third fixing plate; one end of the third rack is arranged on the side surface of the connecting plate through a second connecting block, and the other end of the third rack penetrates through the supporting square sleeve; the sixth fixing plate is arranged on the second fixing plate; the second change gear is arranged on the sixth fixing plate through a shaft; the centrifugal wheel is arranged on the sixth fixing plate through a shaft; the outer circle surface of one end of the centrifugal wheel close to the sixth fixing plate is provided with a tooth; a plurality of centrifugal block sliding grooves are uniformly formed in the outer circular surface of one end, far away from the sixth fixing plate, of the centrifugal wheel along the circumferential direction; the second change gear is positioned between the centrifugal wheel and the large gear; the second change gear is respectively meshed with the engaging tooth on the centrifugal wheel and the large gear; each centrifugal block sliding groove is provided with a centrifugal block; one end of the centrifugal block spring is arranged on the centrifugal block, and the other end of the centrifugal block spring is arranged on the bottom groove surface of the centrifugal block sliding groove; the centrifugal block slides in the centrifugal block sliding groove through a centrifugal block spring; one end of the centrifugal block, which is far away from the centrifugal block spring, is provided with a sharp corner;

the centrifugal block is matched with the third rack;

the guide pin penetrates through the telescopic inner rod and is positioned between the ring sleeve and the second telescopic sleeve; the two fan-shaped guide rails are both arranged on the second fixing plate through a seventh fixing plate; the two fan-shaped guide rails are positioned at two sides of the telescopic inner rod, and the fan-shaped guide rails are positioned between the ring sleeve and the second telescopic sleeve; two ends of the guide pin are respectively arranged in the two fan-shaped guide rails in a sliding way;

the brake connecting rod of the brake device is connected with a brake system on an automobile;

the diameter of the big gear is larger than that of the small gear; the diameter of the second change gear is smaller than that of the bull gear;

the ladder-shaped guide block spring is an extension spring.

2. A brake apparatus according to claim 1, wherein: and a space is reserved between the centrifugal wheel and the third rack.

3. A brake apparatus according to claim 1, wherein: when the ladder-type guide block spring is not stretched, the ladder-type guide block is positioned in the middle of the ladder-type guide groove.

4. A brake apparatus according to claim 1, wherein: when the brake pedal is not pressed down, the telescopic inner rod is in a horizontal state.

5. A brake apparatus according to claim 3, wherein: the distance from the ring sleeve to the first hinge block is S1, and the distance from the ring sleeve to the second hinge block is S2; when the ladder guide block is located at the middle position of the ladder guide groove, the loop sleeve is located at the middle position of the first telescopic sleeve and the second telescopic sleeve, and S1 is equal to S2.

6. A brake apparatus according to claim 1, wherein: the fan-shaped guide rail is provided with an inner arc-shaped plate surface and an outer arc-shaped plate surface; the curvature of the inner arc-shaped plate surface is larger than that of the outer arc-shaped plate surface.