Buffering force adjusting structure

Abstract

The invention relates to the field of vehicle engineering, in particular to a buffering force adjusting structure which comprises an auxiliary buffering rod and a buffering force adjusting knob. The auxiliary buffer rod comprises a piston rod, an oil cylinder, an oil return shell and an oil return piston, one end of the piston rod extends into the oil cylinder from one end of the oil cylinder, the other end of the oil cylinder is connected with the oil return shell, an inner cavity of the oil return shell is divided into an adjusting cavity and a compression cavity through the oil return piston, and the other end of the oil cylinder is communicated with the adjusting cavity. The oil return flux control switch extends into the adjusting chamber; the buffering force adjusting knob comprises a knob body, an adjusting hole penetrating to the adjusting cavity is formed in the side wall of the oil return shell, the knob body is in threaded fit with the adjusting hole, the knob body is rotationally connected with the oil return flux control switch, and the oil return flux control switch is provided with two or more sets of oil return through holes with different hole diameters. The buffering force adjusting structure can improve user experience and product quality and has the advantages of being good in adjusting flexibility and high in safety.

Description

[0001] This case is a divisional application based on the invention patent with the application date of 20220712, application number CN202210817345.0, and title "Adjustable Buffer Force Pedal Structure". Technical Field

[0002] This invention relates to the field of vehicle engineering, and more particularly to a cushioning pedal structure with adjustable oil volume. Background Technology

[0003] When a car pedal is released, it springs up quickly. The vibration of the pedal can cause fatigue in the user's foot, posing a certain safety hazard and also hindering the improvement of the user's driving experience. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a buffer force adjustment structure that improves the pedal feedback.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows:

[0006] A buffer force adjustment structure includes an auxiliary buffer rod and a buffer force adjustment knob;

[0007] The auxiliary buffer rod includes a piston rod, an oil cylinder, a return oil housing, and a return oil piston. One end of the piston rod extends into one end of the oil cylinder, and the other end of the oil cylinder is connected to the return oil housing. The inner cavity of the return oil housing is divided into an adjustment chamber and a compression chamber by the return oil piston. The other end of the oil cylinder is connected to the adjustment chamber, and the return oil flow control switch extends into the adjustment chamber.

[0008] The buffer force adjustment knob includes a knob body, and the side wall of the oil return housing is provided with an adjustment hole that extends to the adjustment chamber. The knob body is threadedly engaged with the adjustment hole, and the knob body is rotatably connected to the oil return flow control switch. The oil return flow control switch is provided with two or more sets of oil return through holes with different diameters.

[0009] The beneficial effects of this invention are as follows: It provides a buffer force adjustment structure in which the piston rod extends into the oil cylinder to compress the oil. After the oil passes through the adjustment chamber of the return oil housing, it pushes the return oil piston to compress the medium in the compression chamber. By controlling the return oil flow rate of the adjustment chamber through the return oil flow rate control switch, the reaction force generated by the oil pressure can be adjusted, thereby adjusting the pedal reset buffer damping force. The knob body is covered outside the return oil flow rate control switch. The side wall of the knob body is provided with an oil guide hole. By rotating the return oil flow rate control switch inside the knob body, different return oil passages correspond to the oil guide holes, which can flexibly adjust the amount of oil flowing out of the oil guide holes, thereby adjusting the pedal reset buffer damping force, further improving the pedal feedback, enhancing the user's driving experience, and eliminating the safety hazards of traditional pedal devices. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the adjustable cushioning pedal structure according to an embodiment of the present invention;

[0011] Figure 2 This is a cross-sectional view of the adjustable cushioning pedal structure according to an embodiment of the present invention;

[0012] Figure 3 This is a schematic diagram of the structure of the elastic support member according to an embodiment of the present invention;

[0013] Figure 4 This is a schematic diagram of the auxiliary buffer rod according to an embodiment of the present invention;

[0014] Figure 5 This is a cross-sectional view of the auxiliary buffer rod according to an embodiment of the present invention;

[0015] Figure 6 This is a schematic diagram of the buffer force adjustment knob according to an embodiment of the present invention;

[0016] Figure 7 This is another structural schematic diagram of the buffer force adjustment knob according to an embodiment of the present invention;

[0017] Figure 8 This is another structural schematic diagram of the buffer force adjustment knob according to an embodiment of the present invention;

[0018] Figure 9 This is another structural schematic diagram of the buffer force adjustment knob according to an embodiment of the present invention;

[0019] Label Explanation:

[0020] 1. Pedal bracket; 2. Base; 21. First connecting part; 211. First mounting hole; 22. Second connecting part; 221. Second mounting hole; 23. Third mounting hole; 3. Elastic support; 31. Support rod; 32. Slider; 33. Second spring; 4. Auxiliary buffer rod; 41. Piston rod; 42. Oil cylinder; 43. Oil return housing; 431. Adjusting chamber; 432. Compression chamber; 433. Adjusting hole; 44. Oil return piston; 45. First spring; 5. Buffer force adjustment knob; 51. Oil return flow control switch; 511. Oil return through hole; 52. Knob body; 521. Mounting hole; 522. Oil guide groove; 521. Oil guide hole. Detailed Implementation

[0021] To explain in detail the technical content, objectives, and effects of the present invention, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0022] This invention provides a cushioning force adjustable pedal structure, which can be applied to vehicle pedal devices to achieve flexible adjustment of pedal return force.

[0023] Please refer to Figures 1 to 8 The adjustable cushioning pedal structure includes a pedal bracket 1, a base 2, an elastic support 3, an auxiliary cushioning rod 4, and a cushioning force adjustment knob 5.

[0024] One end of the pedal bracket 1 is hinged to one end of the base 2;

[0025] One end of the elastic support 3 is hinged to the first connecting part 21 on the pedal bracket 1, and the other end of the elastic support 3 is hinged to the other end of the base 2.

[0026] One end of the auxiliary buffer rod 4 is hinged to the second connecting part 22 on the pedal bracket 1, and the other end of the auxiliary buffer rod 4 is hinged to the other end of the base 2;

[0027] The distance between the first connecting part 21 and the second connecting part 22 is adjustable;

[0028] The buffer force adjustment knob 5 is disposed on the auxiliary buffer rod 4, and the buffer force adjustment knob 5 includes a return oil flow control switch 51 that extends into the auxiliary buffer rod 4.

[0029] As can be seen from the above description, the beneficial effects of the present invention are as follows: It provides a pedal structure with adjustable buffer force. After the pedal is pressed, the pedal bracket 1 flips on the base 2. The reset force of the pedal bracket 1 is provided by the elastic support 3. During the reset process, the pedal bracket 1 avoids immediate flipping and bouncing due to the buffering effect of the auxiliary buffer rod 4, thus reducing the vibration experienced by the user, reducing user fatigue, and improving the user's driving experience. The distance between the first connecting part 21 and the second connecting part 22 is designed to be adjustable, facilitating the adjustment of the position of the auxiliary buffer rod 4 and the elastic support 3 between the base 2 and the pedal bracket 1. This allows for more flexible control of the pedal feel and reset buffering force, thereby improving the user experience and enhancing product quality. The buffer force adjustment knob 5 adjusts the flow rate of the return oil circuit of the auxiliary buffer rod 4, thereby adjusting the reaction force generated by the oil pressure inside the auxiliary buffer rod 4 during pedal reset, thus adjusting the pedal reset damping effect, further enhancing the pedal feedback, improving the user's driving experience, and eliminating the safety hazards present in traditional pedal devices.

[0030] In an optional embodiment, the auxiliary buffer rod 4 includes a piston rod 41, an oil cylinder 42, a return oil housing 43, and a return oil piston 44. One end of the piston rod 41 is hinged to the second connecting part 22 on the pedal bracket 1, and the other end of the piston rod 41 extends into one end of the oil cylinder 42. The other end of the oil cylinder 42 is connected to the return oil housing 43, and the return oil housing 43 is hinged to the other end of the base 2. The inner cavity of the return oil housing 43 is divided into an adjustment chamber 431 and a compression chamber 432 by the return oil piston 44. The other end of the oil cylinder 42 communicates with the adjustment chamber 431, and the return oil flow control switch 51 extends into the adjustment chamber 431.

[0031] As described above, when the pedal is pressed, the piston rod 41 extends into the oil cylinder 42 to compress the oil. After passing through the regulating chamber 431 of the return oil housing 43, the oil pushes the return oil piston 44 to move and compress the medium in the compression chamber 432. By controlling the return oil flow rate of the regulating chamber 431 through the return oil flow rate control switch 51, the reaction force generated by the oil pressure can be adjusted, thereby adjusting the pedal reset buffer damping force.

[0032] In an optional embodiment, the auxiliary buffer rod 4 further includes a first spring 45, one end of which abuts against the inner wall of the oil cylinder 42, and the other end of which abuts against the other end of the piston rod 41.

[0033] As described above, the first spring 45 provides auxiliary support when the pedal is pressed and provides restoring force when the pedal is released, thereby achieving the purpose of improving the overall pedal pressing and reset effect.

[0034] In an optional embodiment, the buffer force adjustment knob 5 further includes a knob body 52. ​​The side wall of the oil return housing 43 is provided with an adjustment hole 433 that extends to the adjustment chamber 431. The knob body 52 is threadedly engaged with the adjustment hole 433. The knob body 52 is rotatably connected to the oil return flow control switch 51. The oil return flow control switch 51 is provided with two or more sets of oil return through holes 511 with different diameters.

[0035] As described above, the knob body 52 is covered outside the return oil flow control switch 51. The side wall of the knob body 52 is provided with an oil guide hole 521. When the return oil flow control switch 51 is rotated inside the knob body 52, different return oil passages 511 correspond to the oil guide holes 521, so that the amount of oil flowing out from the oil guide holes 521 can be flexibly adjusted, thereby adjusting the pedal reset buffer damping force.

[0036] In an optional embodiment, the knob body 52 is provided with a mounting hole 521, and the side wall of the knob body 52 is provided with an oil guide groove 522. The oil guide groove 522 is provided with an oil guide hole 521 that extends through to the mounting hole 521. The oil return flow control switch 51 is rotatably disposed in the mounting hole 521. When the auxiliary buffer rod 4 is compressed, the oil in the auxiliary buffer rod 4 flows sequentially through the oil return through hole 511, the oil guide hole 521 and the oil guide groove 522.

[0037] As described above, the mounting hole 521 is used to install the return oil flow control switch 51. When the auxiliary buffer rod 4 is compressed, the oil in the auxiliary buffer rod 4 flows through the return oil through hole 511, the guide oil hole 521 and the guide oil groove 522 in sequence, and then presses the return oil piston 44. The return oil piston 44 compresses the medium in the compression chamber 432. When the auxiliary buffer rod 4 is relaxed, the medium in the compression chamber 432 pushes the return oil piston 44 to move. The oil flows through the guide oil groove 522, the guide oil hole 521 and the return oil through hole 511 in sequence and then returns to the return oil piston 44. The above process realizes the buffering when the pedal is reset.

[0038] In an optional embodiment, the knob body 52 is provided with a buffer force level marking section.

[0039] As described above, the buffer damping force level marking section is used to allow users to clearly understand the current buffer damping force level, thereby enabling more efficient and accurate adjustment and improving the product's adjustment capabilities.

[0040] In an optional embodiment, the pedal bracket 1 is provided with two or more first mounting holes 211 at the first connecting part 21, one end of the elastic support 3 is hinged to the first mounting hole 211, the pedal bracket 1 is provided with two or more second mounting holes 221 at the second connecting part 22, one end of the auxiliary buffer rod 4 is hinged to the second mounting hole 221, the other end of the base 2 is provided with two or more third mounting holes 23, and the other end of the elastic support 3 and the other end of the auxiliary buffer rod 4 are respectively hinged to the corresponding third mounting holes 23.

[0041] As described above, by adjusting the installation positions of the elastic support 3 and the auxiliary buffer rod 4 on the pedal bracket 1, the pedal feel and the reset buffer damping force can be adjusted simultaneously, thereby improving the user experience and enhancing product quality.

[0042] In an optional embodiment, the elastic support 3 includes a support rod 31, a slider 32, and a second spring 33. One end of the support rod 31 is hinged to the first connecting part 21 on the pedal bracket 1, and the other end of the support rod 31 is hinged to the slider 32. The slider 32 is slidably connected to the base 2, and the two ends of the second spring 33 are respectively connected to the slider 32 and the base 2.

[0043] As described above, when the pedal is pressed, the support rod 31 flips with the pedal bracket 1 and drives the slider 32 to slide on the base 2. After the pedal is released, the pedal bracket 1 returns to its original position under the action of the slider 32 and the second spring 33.

[0044] In an optional embodiment, the distance from the first connecting portion 21 to one end of the pedal bracket 1 is less than the distance from the second connecting portion 22 to one end of the pedal bracket 1.

[0045] As can be seen from the above description, when the distance from the first connecting part to one end of the pedal bracket 1 is less than the distance from the second connecting part 22 to one end of the pedal bracket 1, the pedal feel when pressed and the feedback when returning to its original position are optimal.

[0046] In an optional embodiment, a pedal body is also included, which is connected to the other end of the pedal bracket 1.

[0047] As described above, the pedal body is used for users to step on. The pedal body can be connected to the pedal bracket 1 by a hinge to meet the needs of stepping at more angles and improve the pedal feel.

[0048] Please refer to Figures 1 to 8 The first embodiment of the present invention is: a cushioning force adjustable pedal structure, including a pedal bracket 1, a base 2, an elastic support 3, an auxiliary cushioning rod 4, and a cushioning force adjustment knob 5;

[0049] One end of the pedal bracket 1 is hinged to one end of the base 2;

[0050] One end of the elastic support 3 is hinged to the first connecting part 21 on the pedal bracket 1, and the other end of the elastic support 3 is hinged to the other end of the base 2.

[0051] One end of the auxiliary buffer rod 4 is hinged to the second connecting part 22 on the pedal bracket 1, and the other end of the auxiliary buffer rod 4 is hinged to the other end of the base 2;

[0052] The distance between the first connecting part 21 and the second connecting part 22 is adjustable;

[0053] The buffer force adjustment knob 5 is disposed on the auxiliary buffer rod 4, and the buffer force adjustment knob 5 includes a return oil flow control switch 51 that extends into the auxiliary buffer rod 4.

[0054] The auxiliary buffer rod 4 includes a piston rod 41, an oil cylinder 42, a return oil housing 43, and a return oil piston 44. One end of the piston rod 41 is hinged to the second connecting part 22 on the pedal bracket 1, and the other end of the piston rod 41 extends into one end of the oil cylinder 42. The other end of the oil cylinder 42 is connected to the return oil housing 43, which is hinged to the other end of the base 2. The inner cavity of the return oil housing 43 is divided into an adjustment chamber 431 and a compression chamber 432 by the return oil piston 44. The other end of the oil cylinder 42 communicates with the adjustment chamber 431, and the return oil flow control switch 51 extends into the adjustment chamber 431. The auxiliary buffer rod 4 also includes a first spring 45, one end of which abuts against the inner wall of the oil cylinder 42, and the other end of which abuts against the other end of the piston rod 41.

[0055] The buffer force adjustment knob 5 also includes a knob body 52. ​​The side wall of the oil return housing 43 has an adjustment hole 433 that extends to the adjustment chamber 431. The knob body 52 is threaded into the adjustment hole 433. The knob body 52 is rotatably connected to the oil return flow control switch 51. The oil return flow control switch 51 has two or more sets of oil return through holes 511 with different diameters. The knob body 52 has a mounting hole 521. The side wall of the knob body 52 has an oil guide groove 522. The oil guide groove 522 has an oil guide hole 521 that extends to the mounting hole 521. The oil return flow control switch 51 is rotatably disposed in the mounting hole 521. When the auxiliary buffer rod 4 is compressed, the oil in the auxiliary buffer rod 4 flows sequentially through the oil return through hole 511, the oil guide hole 521, and the oil guide groove 522. The knob body 52 has a buffer force level marking section.

[0056] The pedal bracket 1 is provided with two or more first mounting holes 211 at the first connecting part 21. One end of the elastic support 3 is hinged to the first mounting hole 211. The pedal bracket 1 is provided with two or more second mounting holes 221 at the second connecting part 22. One end of the auxiliary buffer rod 4 is hinged to the second mounting hole 221. The other end of the base 2 is provided with two or more third mounting holes 23. The other end of the elastic support 3 and the other end of the auxiliary buffer rod 4 are respectively hinged to the corresponding third mounting holes 23.

[0057] The elastic support 3 includes a support rod 31, a slider 32, and a second spring 33. One end of the support rod 31 is hinged to the first connecting part 21 on the pedal bracket 1, and the other end of the support rod 31 is hinged to the slider 32. The slider 32 is slidably connected to the base 2. The two ends of the second spring 33 are respectively connected to the slider 32 and the base 2.

[0058] The distance from the first connecting part 21 to one end of the pedal bracket 1 is less than the distance from the second connecting part 22 to one end of the pedal bracket 1.

[0059] It also includes a pedal body, which is connected to the other end of the pedal bracket 1.

[0060] Please refer to Figures 1 to 8 The difference between Embodiment 2 and Embodiment 1 of the present invention is that: two or more sets of oil return through holes 511 with different diameters are arranged circumferentially on the oil return flow control switch 51, and the diameters increase or decrease circumferentially.

[0061] Please refer to Figures 1 to 8 The difference between Embodiment 3 and Embodiment 1 of the present invention is that: the knob body 52 includes a knob block and a knob post, the oil guide hole 521 and the oil guide groove 522 are both provided on the knob post, one end of the knob post is threadedly engaged with the adjustment hole 433, and the other end of the knob post extends out from the adjustment screw hole and locks with the knob block.

[0062] Please refer to Figures 1 to 8 The difference between Embodiment 4 and Embodiment 1 is that a sealing ring is provided between the knob body 52 and the adjustment hole 433.

[0063] Please refer to Figures 1 to 8 The difference between Embodiment 5 and Embodiment 1 of the present invention is that: the inner wall of the adjustment hole 433 is provided with an annular limiting groove, and the outer wall of the knob body 52 is provided with a limiting post that engages with the annular limiting groove.

[0064] Please refer to Figures 1 to 8The difference between Embodiment Six and Embodiment One is that the other end of the oil cylinder 42 is threadedly connected to the oil return housing 43.

[0065] The working principle of this invention is as follows: Before use, the return oil flow control switch 51 is rotated in the knob body 52 according to the damping force level marking section, so that different return oil passages 511 correspond to the guide oil holes 521, thereby flexibly adjusting the amount of oil flowing out from the guide oil holes 521, and thus adjusting the damping force of the pedal reset buffer; when the pedal is pressed, the support rod 31 flips with the pedal bracket 1 and drives the slider 32 to slide on the base 2. At this time, the second spring 33 is compressed, the piston rod 41 extends into the oil cylinder 42 to compress the oil, and the oil passes through the adjustment chamber 431 of the return oil housing 43 and pushes the return oil piston 44 to move to compress the medium in the compression chamber 432; when the pedal is released and reset, the pedal bracket 1 resets under the action of the second spring 33 and the oil pressure.

[0066] In summary, this invention provides a pedal structure with adjustable buffer force. When the pedal is pressed, the pedal bracket flips on the base. The return force of the pedal bracket is provided by an elastic support member. During the return process, the pedal bracket is prevented from immediately flipping and bouncing up by the buffering effect of the auxiliary buffer rod, thus reducing the vibration experienced by the user, reducing user fatigue, and improving the user's driving experience. The distance between the first and second connecting parts is designed to be adjustable, which facilitates the adjustment of the position of the auxiliary buffer rod and the elastic support member between the base and the pedal bracket, thereby allowing for more flexible control of the pedal feel and the return buffer damping force, thus improving the user experience and enhancing product quality. The buffer force adjustment knob adjusts the flow of the return oil circuit of the auxiliary buffer rod, thereby adjusting the reaction force generated by the oil pressure in the auxiliary buffer rod when the pedal returns, and thus adjusting the pedal return damping buffering effect, further enhancing the pedal feedback, improving the user's driving experience, and eliminating the safety hazards of traditional pedal devices.

[0067] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent modifications made based on the content of the present invention specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A buffer force adjustment structure, characterized in that: Includes an auxiliary buffer rod and a buffer force adjustment knob; The auxiliary buffer rod includes a piston rod, an oil cylinder, a return oil housing, and a return oil piston. One end of the piston rod extends into one end of the oil cylinder, and the other end of the oil cylinder is connected to the return oil housing. The inner cavity of the return oil housing is divided into an adjustment chamber and a compression chamber by the return oil piston. The other end of the oil cylinder is connected to the adjustment chamber, and the return oil flow control switch extends into the adjustment chamber. The buffer force adjustment knob includes a knob body, and the side wall of the oil return housing is provided with an adjustment hole that extends to the adjustment chamber. The knob body is threadedly engaged with the adjustment hole, and the knob body is rotatably connected to the oil return flow control switch. The oil return flow control switch is provided with two or more sets of oil return through holes with different diameters.

2. The buffer force adjustment structure according to claim 1, characterized in that: The knob body is provided with a mounting hole, and the side wall of the knob body is provided with an oil guide groove. An oil guide hole is provided in the oil guide groove and extends to the mounting hole. The oil return flow control switch is rotatably installed in the mounting hole. When the auxiliary buffer rod is compressed, the oil in the auxiliary buffer rod flows through the oil return hole, the oil guide hole and the oil guide groove in sequence.

3. The buffer force adjustment structure according to claim 2, characterized in that: The knob body includes a knob block and a knob post. The oil guide hole and the oil guide groove are both provided on the knob post. One end of the knob post is threaded into the adjustment hole 433, and the other end of the knob post extends out from the adjustment screw hole and locks into the knob block.

4. The buffer force adjustment structure according to claim 1, characterized in that: The knob body is equipped with a buffer force level indicator.

5. The buffer force adjustment structure according to claim 1, characterized in that: Two or more sets of return oil through holes with different diameters are arranged circumferentially on the return oil flow control switch 51, and the diameters increase or decrease circumferentially.

6. The buffer force adjustment structure according to claim 1, characterized in that: The inner wall of the adjustment hole is provided with an annular limiting groove, and the outer wall of the knob body is provided with a limiting post that engages with the annular limiting groove.

Images