High-safety brake pedal for new energy automobile

Abstract

The invention relates to a high-safety brake pedal for a new energy automobile. The high-safety brake pedal comprises a pedal support and a pedal assembly hinged to the pedal support. The pedal assembly comprises a bent connecting rod hinged to the pedal support and is characterized in that a sleeve is arranged on the bent connecting rod in a sleeved mode, a pedal connecting rod is inserted into the sleeve, a spherical top cone is arranged in the sleeve, a matched conical groove is formed in the position, corresponding to the spherical top cone, of the bent connecting rod, and the pedal support is arranged in the conical groove. The bottom of the pedal connecting rod is buckled on the spherical top cone and can freely rotate relative to the spherical surface of the spherical top cone; the technical effect of improving the braking safety performance is achieved.

Description

Technical Field

[0001] The present application relates to the technical field of automobile braking, and in particular to a brake pedal with high safety for new energy vehicles. Background Art

[0002] With the rapid development of the automobile industry and the continuous improvement of people's living conditions, automobiles have become one of the indispensable means of transportation for people to travel. The automobile brake pedal is a pedal that limits power, that is, a pedal of a foot brake (service brake), which is used to slow down and stop the car.

[0003] The braking system mainly includes brake pedals, booster push rods, brake force adjustment devices, and brakes. The braking system is calculated and matched according to the vehicle mass parameters to ensure that the driver has a good brake pedal feel when braking. The brake pedal lever ratio has a direct impact on the pedal force and pedal travel, so the choice of brake pedal lever ratio has a very important impact on the matching of the braking system. When the driver steps on the brake pedal, he needs to move his legs to press the pedal. When stepping on the pressure plate, the sole of the foot may not be able to accurately step on the center of the pedal, and everyone's height is different. It may be more comfortable to step on the pedal at an angle. However, there is no such brake pedal in the existing technical documents, and the pedal is prone to deformation if stepped on at an angle for a long time.

[0004] With respect to the above-mentioned related technologies, the inventor believes that there are defects such as the pedal being inconvenient to use and being unsafe due to deformation caused by long-term braking. Summary of the invention

[0005] In order to solve the above technical problems, the present application provides a brake pedal with high safety for new energy vehicles.

[0006] The present application provides a brake pedal with high safety for new energy vehicles, which adopts the following technical solution: A brake pedal with high safety for new energy vehicles comprises a pedal support and a pedal assembly hinged to the pedal support; the pedal assembly comprises a curved connecting rod hinged to the pedal support, a sleeve is sleeved on the curved connecting rod, a pedal connecting rod is inserted in the sleeve, a spherical cone is arranged inside the sleeve, an adaptive conical groove is opened on the curved connecting rod at a position corresponding to the spherical cone, the bottom of the pedal connecting rod is buckled with the spherical cone and can rotate freely relative to the spherical surface of the spherical cone.

[0007] By adopting the above technical scheme, when using the pedal, the pedal part can be stepped on to rotate the bent connecting rod, driving the brake end of the driving cylinder to contact, so that the brake cylinder discharges part of the gas to the brake disc, thereby realizing braking. There is a moving space between the pedal connecting rod and the sleeve in this scheme, so that the pedal connecting rod can be stepped on at a slightly inclined angle. At the same time, a spherical top cone is provided in this scheme. The pressure applied to the spherical top cone when stepped on will be released to the bent connecting rod through the tip part of the spherical top cone, which can concentrate the dispersed force on the bent connecting rod so that it can generate a downward force, and can weaken the problem of deformation of the pedal connecting rod caused by the generation of dispersed force to a certain extent. Through this scheme, the service life of the brake pedal can be further improved, and the braking safety can be improved at the same time.

[0008] Preferably, the interior of the spherical top cone is a hollow structure, and a plurality of suction ports are opened on the spherical surface of the spherical top cone. A float assembly that can seal the suction port is provided at the suction port, and the float assembly protrudes out of the spherical surface of the spherical top cone. The spherical top cone is connected to a vacuum assembly for extracting the gas inside it.

[0009] By adopting the above technical solution, when performing pedal braking, stability is the top priority. When pressure is applied to the pedal connecting rod, the float assembly at the corresponding position will shrink into the ball-top cone. At this time, the corresponding suction port will open. At this time, the exhaust assembly synchronously connected to the ball-top cone will extract the air inside it, so that negative pressure is formed inside, and the pedal connecting rod can be tightly adsorbed at the corresponding position, so that the pedal connecting rod will not shake during the pedaling action, thereby improving the safety performance of pedaling.

[0010] Preferably, the brake cylinder is a pre-extension cylinder, and the vacuum assembly includes a first negative pressure connecting pipe, which is connected to the brake chamber of the brake cylinder. When the brake cylinder performs a braking action, negative pressure is generated in the first negative pressure connecting pipe to extract the gas in the spherical top cone.

[0011] By adopting the above technical solution, when the pedaling action is performed, the brake cylinder will synchronously perform the braking action. One of the chambers of the brake cylinder is the braking chamber, and the other chamber is the brake release chamber. When braking, the piston rod of the brake cylinder will extend, and there is a return spring in the braking chamber and gas in the brake release chamber. At this time, the air in the brake release chamber will be discharged, and a negative pressure state will be formed in the brake chamber. Since the first negative pressure connecting pipe is connected to the braking chamber, a linkage can be generated so that the pedal connecting rod is tightly adsorbed on the spherical surface of the spherical cone, thereby achieving stable fixation of the pedal connecting rod.

[0012] Preferably, a second negative pressure connecting pipe is connected to the spherical cone, the other end of the second negative pressure connecting pipe is placed outside the vehicle body, and an air filter is arranged in the second negative pressure connecting pipe.

[0013] By adopting the above technical solution, a second negative pressure connecting tube is arranged inside the spherical top cone, and the other end of the second negative pressure connecting tube is located outside the vehicle. When the vehicle is in driving state, due to the fast air flow rate around the vehicle body, negative pressure is formed on the surface of the vehicle body, which can absorb part of the gas inside the spherical top cone, so that the pedal connecting rod can be more strongly adsorbed on the spherical surface of the spherical top cone, thereby realizing stable connection of the pedal connecting rod without the aid of external force.

[0014] Preferably, a gas flow rate tube is provided at the outer end of the second negative pressure connecting tube, the front end of the gas flow rate tube is open, the gas flow rate tube is located at the lower side of the second negative pressure connecting tube, and an air flow opening is opened at the position corresponding to the second negative pressure connecting tube.

[0015] By adopting the above technical solution, the air flow rate at the corresponding outer opening of the second negative pressure connecting tube is further enhanced by setting a gas flow rate tube, so that a strong negative pressure can be formed at the corresponding position, which can effectively improve the adsorption force.

[0016] Preferably, a transverse limit block is provided on the pedal connecting rod, and a limit groove is provided on the inner side of the sleeve corresponding to the position of the limit block; a fine-tuning component is provided on the inner side of the sleeve for adjusting the position of the pedal connecting rod in the sleeve.

[0017] By adopting the above technical solution, by setting the limit block and the limit groove, the pedal connecting rod can be prevented from rotating during use. At the same time, by setting the fine-tuning component, the pedal connecting rod can be adjusted to a relatively inclined position according to factors such as the current height of the operator, so that the driver can step on the pedal more comfortably.

[0018] Preferably, a connecting rod is hinged at the bottom of the pedal connecting rod, and the other end of the connecting rod is hinged to the brake cylinder to control the brake cylinder to brake.

[0019] By adopting the above technical solution and setting a connecting rod, when the driver brakes in an emergency, the brake cylinder can be quickly pushed to achieve the braking effect. At the same time, the connection can effectively convert the rotational force into thrust, making pedaling easier.

[0020] Preferably, an opening is provided at the bottom of the pedal connecting rod and an adjusting rod is inserted at the opening. The adjusting rod and the bottom opening of the pedal connecting rod are sealed to form a sealed chamber. An adjusting pipe is connected to the sealed chamber, and the other end of the adjusting pipe is connected to the brake release chamber of the brake cylinder.

[0021] By adopting the above technical solution, an adjusting rod and a sealed chamber are provided. When the driver performs a braking operation, the driver steps on the pedal to discharge the gas in the brake release chamber. The discharged positive pressure gas can be introduced into the sealed chamber through the adjusting tube. The harder the pedal is stepped on, the more gas is introduced, thereby achieving the extension of the adjusting tube, making the braking effect better, enabling rapid braking during emergency braking, and improving driving safety performance.

[0022] Preferably, a rubber ring is provided at the edge of the sleeve, and the pedal connecting rod is located inside the rubber ring and is in close contact with the rubber ring.

[0023] By adopting the above technical solution and arranging the rubber ring, the inside of the sleeve can be kept relatively clean, and at the same time the angle of the pedal connecting rod can be finely adjusted, and the structure is relatively simple and practical.

[0024] Preferably, an adsorption rubber sheet is provided at the bottom of the pedal connecting rod.

[0025] By adopting the above technical solution and providing the adsorption rubber sheet, the pedal connecting rod can be better adsorbed on the spherical surface of the spherical cone, thereby improving braking safety.

[0026] In summary, the present application includes at least one of the following beneficial technical effects: 1. When the pedal is stepped on, the brake cylinder will perform the braking action synchronously. One of the chambers of the brake cylinder is the braking chamber, and the other chamber is the brake release chamber. When braking, the piston rod of the brake cylinder will extend. There is a return spring in the braking chamber and gas in the brake release chamber. At this time, the air in the brake release chamber will be discharged, and a negative pressure state will be formed in the brake chamber. Since the first negative pressure connecting pipe is connected to the braking chamber, a linkage can be generated so that the pedal connecting rod is tightly adsorbed on the spherical surface of the spherical cone, thereby achieving stable fixation of the pedal connecting rod.

[0027] 2. When the pedal is pressed, the brake cylinder will brake synchronously. One of the chambers of the brake cylinder is the brake chamber, and the other chamber is the brake release chamber. When braking, the piston rod of the brake cylinder will extend. There is a return spring in the brake chamber and gas in the brake release chamber. At this time, the air in the brake release chamber will be discharged and a negative pressure state will be formed in the brake chamber. Since the first negative pressure connecting pipe is connected to the brake chamber, a linkage can be generated so that the pedal connecting rod is tightly adsorbed on the spherical surface of the spherical cone, thereby achieving stable fixation of the pedal connecting rod.

[0028] 3. An adjusting rod and a sealed chamber are provided. When the driver performs a braking operation, the driver steps on the pedal to discharge the gas in the brake release chamber. The discharged positive pressure gas can be introduced into the sealed chamber through the adjusting tube. The harder the pedal is stepped on, the more gas is introduced, thereby achieving the extension of the adjusting tube, making the braking effect better, enabling rapid braking during emergency braking, and improving driving safety performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of the embodiment.

[0030] Figure 2 yes Figure 1 Enlarged view of part A in the middle.

[0031] Figure 3 Schematic diagram of the structure of the spherical cone in the embodiment.

[0032] Figure 4 Schematic diagram highlighting the relative positions of the gas flow rate tube and the second negative pressure connecting tube in the embodiment.

[0033] Figure 5 Schematic diagram highlighting the relative positions of the limiting block and the limiting groove in the embodiment.

[0034] Explanation of the accompanying drawings: 1. Pedal support; 2. Pedal assembly; 21. Bending connecting rod; 22. Sleeve; 23. Pedal connecting rod; 231. Limit block; 232. Limit groove; 233. Screw; 234. Connecting rod; 235. Adjusting rod; 236. Sealing chamber; 237. Adjusting tube; 24. Spherical cone; 241. Adsorption port; 242. Sealing sphere; 243. Sealing spring; 25. Conical groove; 26. Adsorption rubber sheet; 27. Rubber ring; 3. Brake cylinder; 31. Cylinder body; 32. Sealing plate; 33. Braking chamber; 34. Brake release chamber; 35. Air outlet; 36. Push rod; 37. Reset spring; 4. Vacuum assembly; 41. First negative pressure connecting pipe; 42. Second negative pressure connecting pipe; 43. Gas flow rate pipe. DETAILED DESCRIPTION

[0035] The following is combined with Figure 1-5 This application is described in further detail.

[0036] The present application discloses a brake pedal with high safety for new energy vehicles. Figure 1, including a pedal support 1 and a pedal assembly 2 hinged to the pedal support 1; a brake cylinder 3 is provided at the lower end of the pedal assembly 2, the brake cylinder 3 is a pre-extended cylinder, the brake cylinder 3 includes a cylinder body 31 and a sealing plate 32 slidably connected to the inside of the cylinder body 31, and the cylinder body 31 is divided into a brake chamber 33 and a brake release chamber 34 by the sealing plate 32, wherein a return spring 37 is provided inside the brake chamber 33, an air outlet 35 is provided on the brake release chamber 34, a push rod 36 is provided in the brake chamber 33, and the push rod 36 extends out of the brake chamber 33, and the brake release chamber 34 is connected to the brake assembly.

[0037] When braking is required, the pedal assembly 2 is stepped on so that the lower part of the pedal assembly 2 contacts the push rod 36, controlling the return spring 37 in the brake chamber 33 to extend, while pushing out the gas in the brake release chamber 34. The gas will enter the brake assembly for braking. The linkage braking method between the brake cylinder 3 and the brake assembly is a prior art and will not be repeated here.

[0038] Reference Figure 1 and Figure 2 The pedal assembly 2 includes a bent connecting rod 21 hinged to the pedal support 1, a sleeve 22 is sleeved on the bent connecting rod 21, and the bent connecting rod 21 is sealed and welded to the sleeve 22; a pedal connecting rod 23 is inserted in the sleeve 22, and a spherical cone 24 is arranged in the sleeve 22, wherein a conical groove 25 is opened at a position corresponding to the spherical cone 24 on the bent connecting rod 21, and the spherical cone 24 can be inserted in the conical groove 25, and a hemispherical surface is opened at a spherical position corresponding to the spherical surface of the spherical cone 24 at the tail of the pedal connecting rod 23, and an adsorption rubber sheet 26 is arranged on the inner side of the hemispherical surface, and a rubber ring 27 is arranged at the edge of the sleeve 22, and the pedal connecting rod 23 is located in the rubber ring 27 and is close to the rubber ring 27.

[0039] Reference Figure 1 and Figure 3 The interior of the spherical cone 24 is a hollow structure, and a plurality of suction ports 241 are provided on the spherical surface of the spherical cone 24. When the bottom of the pedal connecting rod 23 is buckled on the spherical surface of the spherical cone 24, a plurality of suction ports 241 can always be covered. A floating ball assembly that can seal the suction port 241 is provided at the suction port 241. The floating ball assembly includes a sealing spring 243 fixedly connected to the interior of the spherical cone 24 and a sealing ball 242 fixedly connected to the sealing spring 243. The sealing ball 242 is tightly fitted to the suction port 241 from the inside to the outside under the action of the sealing spring 243. A layer of sealing rubber is adhered to the outer surface of the sealing ball 242. In a natural state, the sealing ball 242 protrudes from the spherical surface of the spherical cone 24.

[0040] The spherical cone 24 is connected with an air extraction component 4, which can extract the gas inside the spherical cone 24 to form a negative pressure state inside the spherical cone 24; specifically, the air extraction component 4 includes a first negative pressure connecting pipe 41, one end of the first negative pressure connecting pipe 41 is connected to the spherical cone 24, and the other end is connected to the brake chamber 33 of the brake cylinder 3, and a second negative pressure connecting pipe 42 is also provided in the spherical cone 24, and the other end of the second negative pressure connecting pipe 42 is arranged outside the vehicle body, and an air filter is arranged inside the second negative pressure connecting pipe 42, and a gas flow rate pipe 43 is arranged at the outer end of the second negative pressure connecting pipe 42 (refer to Figure 4 ), the front end of the gas flow rate tube 43 is open, the gas flow rate tube 43 is located at the lower side of the second negative pressure connecting tube 42, and an air flow opening is opened at a position corresponding to the second negative pressure connecting tube 42.

[0041] When the pedal is stepped on, the brake cylinder 3 will perform the braking action synchronously, and the air in the brake release chamber 34 will be discharged. At the same time, a negative pressure state will be formed in the brake chamber 33. Since the first negative pressure connecting pipe 41 is connected to the brake chamber 33, the inside of the spherical cone 24 can be controlled to form a negative pressure state. Therefore, a linkage can be generated so that the pedal connecting rod 23 is tightly adsorbed on the spherical surface of the spherical cone 24, thereby achieving stable fixation of the pedal connecting rod 23. A second negative pressure connecting pipe 42 is arranged in the spherical cone 24. The second negative pressure connecting pipe 42 is connected to the spherical cone 24. The other end of the connecting pipe 42 is located outside the vehicle. When the vehicle is in motion, due to the fast air flow rate around the vehicle body, negative pressure is formed on the surface of the vehicle body, which can absorb part of the gas inside the spherical top cone 24, so that the pedal connecting rod 23 can be more strongly adsorbed on the spherical surface of the spherical top cone 24, and the stable connection of the pedal connecting rod 23 is strengthened without the aid of external force. Through the mutual linkage of the first negative pressure connecting pipe 41 and the second negative pressure connecting pipe 42, the negative pressure inside the spherical top cone 24 will not be too high.

[0042] A connecting rod 234 is hinged at the bottom of the pedal connecting rod 23, and the other end of the connecting rod 234 is hinged to the brake cylinder 3 to control the brake cylinder 3 to brake; an opening is provided at the bottom of the pedal connecting rod 23 and an adjusting rod 235 is inserted at the opening, and the adjusting rod 235 is sealedly connected to the bottom opening of the pedal connecting rod 23 to form a sealed chamber 236, and an adjusting pipe 237 is connected to the sealed chamber 236, and the other end of the adjusting pipe 237 is connected to the brake release chamber 34 of the brake cylinder 3.

[0043] Reference Figure 1 and Figure 5A transverse limit block 231 is provided on the pedal connecting rod 23, and a limit groove 232 is provided on the inner side of the sleeve 22 at a position corresponding to the limit block 231; a fine-tuning component is provided on the inner side of the sleeve 22 for adjusting the position of the pedal connecting rod 23 in the sleeve 22, and the fine-tuning component can be a screw 233. A threaded hole is opened on the sleeve 22 at a position corresponding to the screw 233, and the screw 233 is threadedly connected at the threaded hole to realize fine-tuning action.

[0044] An adjusting rod 235 and a sealed chamber 236 are provided. When the driver performs a braking operation, the driver steps on the pedal to discharge the gas in the brake release chamber 34. The discharged positive pressure gas can be introduced into the sealed chamber 236 through the adjusting tube 237. The harder the pedal is stepped on, the more gas is introduced, thereby achieving the extension of the adjusting tube 237, so that the braking effect is better and braking can be performed quickly during emergency braking.

[0045] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A brake pedal with high safety for a new energy vehicle, comprising a pedal support (1) and a pedal assembly (2) hinged to the pedal support (1); the pedal assembly (2) comprises a curved connecting rod (21) hinged to the pedal support (1), characterized in that: The curved connecting rod (21) is sleeved with a sleeve (22), a pedal connecting rod (23) is inserted into the sleeve (22), a spherical cone (24) is arranged inside the sleeve (22), an adaptive conical groove (25) is opened at a position corresponding to the spherical cone (24) on the curved connecting rod (21), the bottom of the pedal connecting rod (23) is buckled with the spherical cone (24), and can rotate freely relative to the spherical surface of the spherical cone (24).

2. A brake pedal with high safety for new energy vehicles according to claim 1, characterized in that: The interior of the spherical cone (24) is a hollow structure, and a plurality of suction ports (241) are provided on the spherical surface of the spherical cone (24). A floating ball assembly that can seal the suction port (241) is provided at the suction port (241), and the floating ball assembly protrudes from the spherical surface of the spherical cone (24). The spherical cone (24) is connected to an exhaust assembly (4) for extracting gas inside it.

3. A brake pedal with high safety for new energy vehicles according to claim 2, characterized in that: The brake cylinder (3) is a pre-extended cylinder, and the exhaust assembly (4) comprises a first negative pressure connecting pipe (41), the first negative pressure connecting pipe (41) is connected to the brake chamber (33) of the brake cylinder (3), and when the brake cylinder (3) performs a braking action, negative pressure is generated in the first negative pressure connecting pipe (41) to extract the gas in the spherical cone (24).

4. A brake pedal with high safety for new energy vehicles according to claim 2, characterized in that: A second negative pressure connecting pipe (42) is connected inside the spherical cone (24), the other end of the second negative pressure connecting pipe (42) is placed outside the vehicle body, and an air filter is arranged inside the second negative pressure connecting pipe (42).

5. The brake pedal with high safety for new energy vehicles according to claim 4, characterized in that: A gas flow rate tube (43) is provided at the outer end of the second negative pressure connecting tube (42), the front end of the gas flow rate tube (43) is open, the gas flow rate tube (43) is located at the lower side of the second negative pressure connecting tube (42), and an air flow opening is provided at a position corresponding to the second negative pressure connecting tube (42).

6. The brake pedal with high safety for new energy vehicles according to claim 1, characterized in that: A transverse limit block (231) is arranged on the pedal connecting rod (23), and a limit groove (232) is arranged on the inner side of the sleeve (22) at a position corresponding to the limit block (231); and a fine adjustment component is arranged on the inner side of the sleeve (22) for adjusting the position of the pedal connecting rod (23) in the sleeve (22).

7. The brake pedal with high safety for new energy vehicles according to claim 1, characterized in that: A connecting rod (234) is hinged at the bottom of the pedal connecting rod (23), and the other end of the connecting rod (234) is hinged to the brake cylinder (3) to control the brake cylinder (3) to brake.

8. The brake pedal with high safety for new energy vehicles according to claim 7, characterized in that: The bottom of the pedal connecting rod (23) is provided with an opening and an adjusting rod (235) is inserted into the opening. The adjusting rod (235) is sealedly connected to the bottom opening of the pedal connecting rod (23) to form a sealed chamber (236). The sealed chamber (236) is connected to an adjusting pipe (237), and the other end of the adjusting pipe (237) is connected to the brake release chamber (34) of the brake cylinder (3).

9. The brake pedal with high safety for new energy vehicles according to claim 1, characterized in that: A rubber ring (27) is provided at the edge of the sleeve (22), and the pedal connecting rod (23) is located inside the rubber ring (27) and is in close contact with the rubber ring (27).

10. The brake pedal with high safety for new energy vehicles according to claim 1, characterized in that: An adsorption rubber sheet (26) is provided at the bottom of the pedal connecting rod (23).

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