Pedal adjustment mechanism and seat

Abstract

The application discloses a pedal adjusting mechanism and a seat. The pedal adjusting mechanism comprises a pedal body, a rotating shaft, a ratchet assembly, a switching piece and an elastic piece. The ratchet assembly comprises a first ratchet and a second ratchet. The first ratchet and the second ratchet are both sleeved on the rotating shaft. The first ratchet is fixedly arranged. The second ratchet is rotatably arranged. The first ratchet is provided with a first limiting part. The second ratchet is provided with a first protruding part. The ratchet assembly has an engaged state and a separated state. The switching piece is rotatably sleeved on the rotating shaft. The switching piece is provided with a second limiting part. The first limiting part cooperates with the second limiting part to limit the rotation range of the switching piece. The switching piece is used for switching the ratchet assembly between the engaged state and the separated state. The elastic piece is used for applying an elastic force to the second ratchet to keep the ratchet assembly in the engaged state. The application can realize quick resetting of the pedal, improve the use experience and make the adjusting operation more humanized.

Description

Technical Field

[0001] This invention relates to the field of seating technology, and in particular to a foot pedal adjustment mechanism and a seat. Background Technology

[0002] Currently, some chairs typically have a footrest that can extend for users to rest, and the footrest can also rotate to adjust its angle. In related technologies, the chair has a footrest adjustment mechanism with a ratchet and a pawl. The footrest is connected to the ratchet, and the footrest and ratchet rotate synchronously. The pawl, under elastic force, abuts against the ratchet. When the ratchet and pawl are engaged, the footrest can only rotate in one direction, thus achieving multi-position adjustment. However, if the user adjusts the footrest angle incorrectly, they need to continue rotating the footrest to its limit before the pawl disengages from the ratchet, allowing the footrest to rotate in the opposite direction and reset. The large range of rotation of the footrest makes the adjustment operation inconvenient for the user. Summary of the Invention

[0003] The purpose of this invention is to at least solve one of the technical problems existing in the prior art. To this end, this invention provides a foot pedal adjustment mechanism that enables rapid foot pedal reset, improves the user experience, and makes the adjustment operation more user-friendly.

[0004] The present invention also provides a seat having the above-described foot pedal adjustment mechanism.

[0005] According to a first aspect of the present invention, a foot pedal adjustment mechanism includes: a foot pedal body; a rotating shaft; a ratchet assembly including a first ratchet and a second ratchet, both the first and second ratchets being sleeved on the rotating shaft, the first ratchet being fixedly disposed, the second ratchet being rotatably disposed, the second ratchet being fixedly connected to the foot pedal body, the first ratchet having a first limiting portion, the second ratchet having a first protrusion, the ratchet assembly having an engaged state and a disengaged state, wherein in the engaged state, the first ratchet and the second ratchet are engaged, and in the disengaged state, the first ratchet and the second ratchet are disengaged; a switching member rotatably sleeved on the rotating shaft, the switching member having a second limiting portion, the first limiting portion cooperating with the second limiting portion to limit the... The switching member has a rotation range and is provided with a second protrusion and a slot. The switching member is used to switch the ratchet assembly between the engaged state and the disengaged state. An elastic member is used to apply an elastic force to the second ratchet to keep the ratchet assembly in the engaged state. When the ratchet assembly is in the engaged state, the second ratchet can rotate relative to the first ratchet in a single direction. When the second ratchet rotates, the first protrusion can pass over the second protrusion to push the second ratchet out along the axial direction of the shaft, so that the ratchet assembly switches to the disengaged state. When the first protrusion passes over the second protrusion, the first protrusion can cooperate with the slot to make the second ratchet drive the switching member to rotate together.

[0006] The foot pedal adjustment mechanism according to a first aspect embodiment of the present invention has at least the following beneficial effects: In use, the foot pedal body is in its initial state, at which time the ratchet assembly is engaged. Rotating the foot pedal body in a single direction, such as clockwise, causes the foot pedal body to rotate along with the second ratchet, thus adjusting the position of the foot pedal body. If the angle is incorrectly adjusted, simply continue rotating the foot pedal body clockwise until the first and second limiting parts engage, preventing the switching member from rotating clockwise further. Furthermore, when the first protrusion passes the second protrusion, the first protrusion engages with the groove of the second protrusion, at which point the second ratchet is pushed out, separating from the first ratchet. The ratchet assembly is in a disengaged state, allowing the foot pedal body to rotate counterclockwise. The second ratchet then drives the switching member to rotate counterclockwise, returning to the initial position. After the angle is incorrectly adjusted, simply lifting the foot pedal body a small distance allows for reverse rotation, achieving rapid reset and improving the user experience and making operation more ergonomic.

[0007] According to some embodiments of the present invention, the first protrusion is provided with a first guide surface, and the second protrusion is provided with a second guide surface. The first guide surface and the second guide surface cooperate to enable the first protrusion to pass over the second protrusion.

[0008] According to some embodiments of the present invention, the first limiting part is configured as a groove structure, the first limiting part is arc-shaped, the first limiting part extends circumferentially along the first ratchet, the second limiting part is configured as a boss structure, and the second limiting part can abut against the groove sidewall of the first limiting part.

[0009] According to some embodiments of the present invention, the switching member includes a first annular portion and a second annular portion connected to each other, both the first annular portion and the second annular portion being sleeved on the rotating shaft, the outer diameter of the second annular portion being larger than the outer diameter of the first annular portion, the second ratchet being sleeved on the first annular portion, the second annular portion being located between the first ratchet and the second ratchet, the second protrusion being provided on the side of the second annular portion near the second ratchet, the slot being located on the side of the second protrusion near the second ratchet, and the second limiting portion being provided on the side of the second annular portion near the first ratchet.

[0010] According to some embodiments of the present invention, the second ratchet is provided with a third protrusion on the side near the first ratchet, and the first ratchet is provided with a fourth protrusion on the side near the second ratchet. When the second ratchet rotates, the third protrusion can pass over the fourth protrusion to push the second ratchet out along the axial direction of the rotating shaft, so that the ratchet assembly is switched to the disengaged state.

[0011] According to some embodiments of the present invention, both the third protrusion and the fourth protrusion are arc-shaped. The third protrusion extends circumferentially along the second ratchet, and the fourth protrusion extends circumferentially along the first ratchet. The third protrusion and the first protrusion are connected as one unit. The third protrusion is located outside the first protrusion, and the fourth protrusion is located outside the first limiting portion.

[0012] According to some embodiments of the present invention, the second annular portion is further provided with a fifth protrusion on the side near the second ratchet. When the second ratchet rotates, the first protrusion can abut against the fifth protrusion to drive the switching member to rotate together. The first protrusion can also pass over the fifth protrusion.

[0013] According to some embodiments of the present invention, the foot pedal body includes a sleeve portion, the sleeve portion being rotatably connected to the rotating shaft, the sleeve portion having a mounting groove, the ratchet assembly being disposed in the mounting groove, one end of the elastic member abutting against the second ratchet, and the other end of the elastic member abutting against the bottom wall of the mounting groove.

[0014] According to some embodiments of the present invention, the outer peripheral wall of the second ratchet is provided with a positioning part, the inner peripheral wall of the mounting groove is provided with a positioning groove, the positioning part cooperates with the positioning groove, the outer peripheral wall of the first ratchet is provided with a third limiting part, the inner peripheral wall of the mounting groove is provided with a fourth limiting part, the third limiting part cooperates with the fourth limiting part to limit the rotation range of the foot pedal body.

[0015] The seat according to a second aspect of the present invention includes the foot pedal adjustment mechanism of the first aspect of the present invention.

[0016] The seat according to the second aspect embodiment of the present invention has the above-mentioned beneficial effects since it includes the foot pedal adjustment mechanism of the first aspect embodiment, which will not be repeated here.

[0017] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0019] Figure 1 This is a schematic diagram of the foot pedal adjustment mechanism according to some embodiments of the present invention;

[0020] Figure 2 This is an exploded view of the foot pedal adjustment mechanism according to some embodiments of the present invention;

[0021] Figure 3 This is an exploded view of the foot pedal adjustment mechanism according to some embodiments of the present invention;

[0022] Figure 4 This is a schematic diagram of the structure of the second ratchet of the foot pedal adjustment mechanism in some embodiments of the present invention;

[0023] Figure 5 This is a schematic diagram of the structure of the first ratchet of the foot pedal adjustment mechanism in some embodiments of the present invention;

[0024] Figure 6 This is a schematic diagram of the switching component and ratchet assembly of the foot pedal adjustment mechanism in some embodiments of the present invention;

[0025] Figure 7 This is a schematic diagram of the sleeve portion of the foot pedal body of the foot pedal adjustment mechanism according to some embodiments of the present invention;

[0026] Figure 8 This is a schematic diagram of the ratchet assembly of the foot pedal adjustment mechanism in the engaged state according to some embodiments of the present invention;

[0027] Figure 9This is a schematic diagram of the ratchet assembly of the foot pedal adjustment mechanism in a separated state according to some embodiments of the present invention;

[0028] Figure 10 This is a schematic diagram of the foot pedal adjustment mechanism in state A according to some embodiments of the present invention;

[0029] Figure 11 This is a schematic diagram of the foot pedal adjustment mechanism in state B according to some embodiments of the present invention;

[0030] Figure 12 This is a schematic diagram of the foot pedal adjustment mechanism in state C according to some embodiments of the present invention;

[0031] Figure 13 This is a schematic diagram of the foot pedal adjustment mechanism in state D according to some embodiments of the present invention;

[0032] Figure 14 This is a schematic diagram of the foot pedal adjustment mechanism in state E according to some embodiments of the present invention;

[0033] Figure 15 This is a schematic diagram of the foot pedal adjustment mechanism in state F according to some embodiments of the present invention;

[0034] Figure 16 This is a schematic diagram of the foot pedal adjustment mechanism in state G according to some embodiments of the present invention.

[0035] Figure label:

[0036] Foot pedal adjustment mechanism 1000;

[0037] Foot pedal body 100, sleeve part 110, mounting groove 111, positioning groove 112, fourth limiting part 113;

[0038] Shaft 200;

[0039] Ratchet assembly 300, first ratchet 310, first limiting part 311, third limiting part 312, fourth protrusion 313, fourth guide surface 3131, first ratchet tooth 314, second ratchet 320, first protrusion 321, first guide surface 3211, third protrusion 322, third guide surface 3221, positioning part 323, annular groove 324, second ratchet tooth 325;

[0040] Switching component 400, second limiting part 410, second protrusion 420, second guide surface 421, slot 422, fifth protrusion 430, fifth guide surface 431, first annular part 440, second annular part 450;

[0041] Elastic component 500;

[0042] Slide bar 600, fixed base 610. Detailed Implementation

[0043] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0044] Reference Figure 1 As shown, this is a foot pedal adjustment mechanism 1000 provided in a first aspect embodiment of the present invention, with reference to... Figure 2 and Figure 3 As shown, the foot pedal adjustment mechanism 1000 includes a foot pedal body 100, a rotating shaft 200, a ratchet assembly 300, a switching element 400, and an elastic element 500.

[0045] Specifically, refer to Figure 2 and Figure 3 As shown, the ratchet assembly 300 includes a first ratchet 310 and a second ratchet 320. Both the first ratchet 310 and the second ratchet 320 are sleeved on the rotating shaft 200. The first ratchet 310 is fixed and cannot rotate, while the second ratchet 320 is rotatable and is fixedly connected to the foot pedal body 100. The second ratchet 320 rotates synchronously with the foot pedal body 100. The ratchet assembly 300 has an engaged state and a disengaged state. Figure 8 The ratchet assembly 300 is in an engaged state, with the first ratchet 310 and the second ratchet 320 meshing with each other. Figure 9 The ratchet assembly 300 is in the disengaged state, with the first ratchet 310 and the second ratchet 320 separated. When the ratchet assembly 300 is in the disengaged state, the second ratchet 320 can rotate freely; when the ratchet assembly 300 is in the engaged state, the second ratchet 320 can only rotate in one direction, for example, as... Figure 8 The second ratchet 320 can only rotate in a single clockwise direction.

[0046] In brief, the switching element 400 can switch the ratchet assembly 300 between an engaged state and an disengaged state. The elastic element 500 is used to apply an elastic force to the second ratchet 320, so that the second ratchet 320 is locked with the first ratchet 310, so that the ratchet assembly 300 is kept in the engaged state. The switching element 400 can push the second ratchet 320 out along the axial direction of the rotating shaft 200.

[0047] Specifically, the switching component 400 can rotate, see reference. Figure 5 and Figure 6As shown, the first ratchet 310 is provided with a first limiting part 311, and the switching member 400 is provided with a second limiting part 410. The first limiting part 311 can cooperate with the second limiting part 410 to limit the rotation range of the switching member 400, so that the switching member 400 can only rotate within a certain stroke range. Further, in some embodiments, referring to... Figure 5 As shown, the first limiting part 311 can be configured as a groove structure. The first limiting part 311 is arc-shaped and extends circumferentially along the first ratchet 310. The second limiting part 410 is configured as a boss structure. The second limiting part 410 can abut against the groove sidewall of the first limiting part 311. The arc length of the first limiting part 311 can be understood as the rotation stroke of the switching member 400.

[0048] Reference Figure 4 and Figure 6 As shown, the second ratchet 320 has a first protrusion 321, and the switching member 400 has a second protrusion 420. Briefly, when the ratchet assembly 300 is engaged, the second ratchet 320 can rotate in a single direction, causing the first protrusion 321 to engage with the second protrusion 420. The first protrusion 321 can pass over the second protrusion 420. When the first protrusion 321 passes over the second protrusion 420, the end face of the first protrusion 321 abuts against the end face of the second protrusion 420, causing the second ratchet 320 to be pushed out along the axial direction of the rotating shaft 200, thereby separating the second ratchet 320 from the first ratchet 310. Further, referring to… Figure 6 As shown, the second protrusion 420 is also provided with a slot 422. When the first protrusion 321 passes through the second protrusion 420, the first protrusion 321 can engage with the slot 422, so that the first ratchet 310 can drive the switching member 400 to rotate together. Specifically, the first protrusion 321 and the second protrusion 420 can be in a trapezoidal structure.

[0049] The working principle of the above embodiments is briefly explained below: Refer to Figure 1 As shown, the foot pedal adjustment mechanism 1000 is in its initial state, and the ratchet assembly 300 is engaged. At this time, the foot pedal body 100 can be rotated clockwise so that the first protrusion 321 abuts against the second protrusion 420, but the first protrusion 321 has not yet passed the second protrusion 420. The second ratchet 320 can rotate together with the switching member 400. When the foot pedal body 100 rotates to the position shown... Figure 13 When the pedal body 100 is in the middle position, the first limiting part 311 and the second limiting part 410 abut against each other, restricting the rotation of the switching member 400. This can be understood as the switching member 400 reaching its limit position, allowing the pedal body 100 to continue rotating clockwise. Figure 15As shown, the first protrusion 321 passes over the second protrusion 420. When the first protrusion 321 passes the second protrusion 420, the first protrusion 321 can engage with the slot 422 of the second protrusion 420. At this time, the second ratchet 320 is pushed out along the axial direction of the rotating shaft 200, and the second ratchet 320 separates from the first ratchet 310. Then, the pedal body 100 can be rotated counterclockwise, and the second ratchet 320 can drive the switching member 400 to rotate together, thereby achieving a reset. The switching member 400 returns to its initial position. During the reset process, the first limiting part 311 will abut against the second limiting part 410, thereby restricting the rotation of the switching member 400. Continuing to rotate the pedal body 100 counterclockwise, the first protrusion 321 can disengage from the slot 422 and the first protrusion 321 disengages from the second protrusion 420. Under the action of the elastic member 500, the second ratchet 320 engages with the first ratchet 310 again.

[0050] It should be noted that, in the above embodiments, when a reset is required, it is only necessary to lift the foot pedal body 100 to... Figure 15 The position allows the first ratchet 310 and the second ratchet 320 to separate, thus resetting the pedal body 100. The pedal body 100 is lifted only slightly, making it convenient for users and more ergonomic, eliminating the need to lift it to its rearmost position. Furthermore, the interaction between the first ratchet 310 and the second ratchet 320 allows for multi-level adjustment, enabling the pedal body 100 to have multiple positions and gears, improving user comfort. Additionally, the switching component 400 is an internal structure, not exposed externally. Its switching function requires no manual operation from the user; simply rotating the pedal body 100 simplifies the process.

[0051] Reference Figure 4 and Figure 6 As shown, in some embodiments, the first protrusion 321 is provided with a first guide surface 3211, and the second protrusion 420 is provided with a second guide surface 421. The first guide surface 3211 and the second guide surface 421 can be understood as a transition structure. The first guide surface 3211 and the second guide surface 421 cooperate to allow the first protrusion 321 to pass over the second protrusion 420. Specifically, both the first guide surface 3211 and the second guide surface 421 can be set as inclined surfaces. This embodiment can make the rotation of the foot pedal body 100 smoother when the second ratchet 320 is pushed out, reducing the feeling of jamming.

[0052] Reference Figure 6As shown, in some embodiments, the switching member 400 has a sleeve structure. The switching member 400 includes a first annular portion 440 and a second annular portion 450 connected to each other. Both the first annular portion 440 and the second annular portion 450 are sleeved on the rotating shaft 200. The outer diameter of the second annular portion 450 is larger than the outer diameter of the first annular portion 440, and the wall thickness of the second annular portion 450 is smaller than the wall thickness of the first annular portion 440. A second ratchet 320 is sleeved on the first annular portion 440. The second annular portion 450 is located between the first ratchet 310 and the second ratchet 320. A second protrusion 420 is provided on the side of the second annular portion 450 near the second ratchet 320. A groove 422 is located on the side of the second protrusion 420 near the second ratchet 320. A second limiting portion 410 is provided on the side of the second annular portion 450 near the first ratchet 310.

[0053] Understandably, referring to Figure 5 and Figure 6 As shown, when the first limiting part 311 is configured as a groove structure, the second limiting part 410 is configured as a boss structure. The second limiting part 410 can be arc-shaped and extends circumferentially along the second annular part 450. It can also be understood that when the ratchet assembly 300 is engaged, the second ratchet 320 presses against the switching member 400, and the second limiting part 410 always abuts against the bottom wall of the first limiting part 311, providing a certain degree of support for the switching member 400 and preventing it from shaking. Furthermore, there can be two first limiting parts 311, separated and symmetrically arranged. Similarly, there can be two second limiting parts 410, symmetrically arranged, which can improve the support effect on the switching member 400.

[0054] It should be noted that the aforementioned switching component 400 is located between the first ratchet 310 and the second ratchet 320, which can reduce the space occupied. The switching component 400 is located inside the first ratchet 310 and the second ratchet 320, and the switching component 400 is not exposed to the outside. It does not require manual operation by the user. The user only needs to rotate the foot pedal body 100, which simplifies the operation.

[0055] Furthermore, referring to Figure 4 and Figure 6 As shown, there are two first protrusions 321, which are symmetrically arranged. There are also two second protrusions 420, which are symmetrically arranged. The two first protrusions 321 and the two second protrusions 420 cooperate to make the force on the second ratchet 320 more balanced when it is pushed out.

[0056] Reference Figure 4 and Figure 5As shown, in some embodiments, the second ratchet 320 has a third protrusion 322 on the side near the first ratchet 310, and the first ratchet 310 has a fourth protrusion 313 on the side near the second ratchet 320. When the second ratchet 320 rotates, the third protrusion 322 can pass over the fourth protrusion 313. When the third protrusion 322 passes over the fourth protrusion 313, the second ratchet 320 is pushed out along the axial direction of the rotating shaft 200, so that the ratchet assembly 300 switches to the disengaged state.

[0057] Furthermore, referring to Figure 4 and Figure 5 As shown, both the third protrusion 322 and the fourth protrusion 313 are arc-shaped. The third protrusion 322 extends circumferentially along the second ratchet 320, and the fourth protrusion 313 extends circumferentially along the first ratchet 310. The third protrusion 322 is connected to the first protrusion 321 as a whole. The third protrusion 322 is located outside the first protrusion 321, and the fourth protrusion 313 is located outside the first limiting part 311. This can reduce the space occupied and avoid interference with the switching member 400.

[0058] Reference Figure 4 and Figure 5 As shown, in some embodiments, the third protrusion 322 is provided with a third guide surface 3221, and the fourth protrusion 313 is provided with a fourth guide surface 3131. The third guide surface 3221 can cooperate with the fourth guide surface 3131, so that the third protrusion 322 can pass over the fourth protrusion 313. Further, both the third guide surface 3221 and the fourth guide surface 3131 can be set as inclined surfaces.

[0059] Reference Figure 4 and Figure 6 As shown, in some embodiments, the second annular portion 450 is further provided with a fifth protrusion 430 on the side near the second ratchet 320. The first protrusion 321 can abut against the fifth protrusion 430 to drive the switching member 400 to rotate together. The first protrusion 321 can pass over the fifth protrusion 430.

[0060] Reference Figure 4 and Figure 6 As shown, in some embodiments, the fifth protrusion 430 is provided with a fifth guide surface 431, which can cooperate with the first guide surface 3211, so that the first protrusion 321 can pass over the fifth protrusion 430. Further, both the fifth guide surface 431 and the first guide surface 3211 can be set as inclined surfaces.

[0061] Reference Figure 4 , Figure 5 , Figure 8 and Figure 9As shown, in some embodiments, both the first ratchet 310 and the second ratchet 320 have annular structures. The first ratchet 310 has a first ratchet tooth 314 located at the end face of the first ratchet 310 and distributed circumferentially along the first ratchet 310. The second ratchet 320 has a second ratchet tooth 325 located at the end face of the second ratchet 320 and distributed circumferentially along the second ratchet 320. Both the first ratchet tooth 314 and the second ratchet tooth 325 have right-angled triangular structures. When the first ratchet tooth 314 and the second ratchet tooth 325 are engaged, the second ratchet 320 can only rotate in a single direction, for example, the second ratchet 320 can only rotate clockwise.

[0062] Furthermore, referring to Figures 4 to 6 As shown, the first protrusion 321 and the third protrusion 322 are both located on the inner periphery of the first ratchet 314, and the first limiting part 311 and the fourth protrusion 313 are both located on the inner periphery of the second ratchet 325, which can leave space for the installation of the switching part 400 and further reduce the space occupied.

[0063] It should be noted that the working principle of the above embodiments will be explained in detail below: Refer to Figures 10 to 16As shown, these correspond to the seven states A, B, C, D, E, F, and G of the foot pedal adjustment mechanism 1000. In state A, the foot pedal body 100 is in its initial position, and the ratchet assembly 300 is engaged. This fixes the position of the foot pedal body 100 and prevents it from sagging. When needed, the foot pedal body 100 is rotated clockwise to state B. At this time, the third protrusion 322 and the fourth protrusion 313 abut against each other, causing the second ratchet 320 to be pushed out. The second ratchet 320 separates from the first ratchet 310, and the ratchet assembly 300 switches to the disengaged state. Furthermore, the first protrusion 321 contacts the fifth protrusion 430, and the second ratchet 320 can drive the switching member 400 to rotate together. Continue rotating the pedal body 100 until it reaches state C. At this point, the first limiting part 311 and the second limiting part 410 abut against each other, meaning the switching member 400 has reached its limit position and cannot rotate further. Continuing to rotate the pedal body 100 will cause the first protrusion 321 to pass over the fifth protrusion 430. Then, continue rotating the pedal body 100 until it reaches state D. At this point, the first protrusion 321 has passed over the fifth protrusion 430, and the third protrusion 322 has also passed over the fourth protrusion 313. The ratchet assembly 300 is now engaged, and the pedal body 100 can continue to rotate until it reaches state E. It should be noted that the pedal body 100 is in use from state D to state E. In state E, the first protrusion 321 contacts the second protrusion 420. If the pedal body 100 continues to rotate, the first protrusion 321 will pass over the second protrusion 420. Then, continue rotating the pedal body 100 until it reaches state F. At this point, the first protrusion 321 engages with the slot 422 of the second protrusion 420, and the second ratchet 320 is pushed out. The ratchet assembly 300 switches to the disengaged state, allowing the pedal body 100 to rotate counterclockwise. Continuing to rotate the pedal body 100 counterclockwise, it reaches state G. From state F to state G, the second ratchet 320 and the switching element 400 rotate counterclockwise together. In state G, the position of the switching element 400 is... Figure 10 The position of the switching component 400 is the same, which can be understood as the switching component 400 returning to the initial state. The first limiting part 311 and the second limiting part 410 abut against each other, so that the switching component 400 can no longer rotate counterclockwise. If the pedal body 100 continues to rotate counterclockwise, the first protrusion 321 will disengage from the slot 422. In addition, the first protrusion 321 will also disengage from the second protrusion 420. Furthermore, the third protrusion 322 will pass over the fourth protrusion 313, so that the second ratchet 320 remains pushed out. That is, the ratchet assembly 300 remains in the separated state, so that the pedal body 100 can rotate counterclockwise from the G state to the A state to achieve a reset.

[0064] It should be noted that if the angle of the pedal body 100 is misadjusted during use, simply lift the pedal body 100 to the F position to rotate it in the opposite direction and reset it. In related technologies, the pedals need to be lifted to a greater angle to reset. However, in this embodiment, the pedal body 100 can be rotated counterclockwise from the F position to the D position to readjust the angle and achieve a quick reset, making it more convenient and user-friendly to use.

[0065] It should also be noted that the foot pedal body 100 can be rotated counterclockwise from state A to state D to achieve a reset, without having to rotate the foot pedal body 100 to state F. This makes it more convenient for users to use, as there is no need to rotate to state F before resetting, making the operation more flexible.

[0066] Reference Figure 3 and Figure 7 As shown, in some embodiments, the pedal body 100 includes a sleeve portion 110, which has a cylindrical structure and is rotatably connected to the rotating shaft 200. The sleeve portion 110 has a mounting groove 111, and a ratchet assembly 300 is disposed within the mounting groove 111. One end of an elastic member 500 abuts against a second ratchet 320, and the other end of the elastic member 500 abuts against the bottom wall of the mounting groove 111. The outer peripheral wall of the second ratchet 320 is provided with a positioning portion 323, and the inner peripheral wall of the mounting groove 111 is provided with a positioning groove 112. The positioning portion 323 cooperates with the positioning groove 112 to achieve a fixed connection between the pedal body 100 and the second ratchet 320. The ratchet assembly 300 is installed inside the sleeve portion 110, preventing the ratchet assembly 300 from being exposed and providing protection for it. The inner peripheral wall area of ​​the sleeve portion 110 is relatively large, which can provide better support for the pedal body 100.

[0067] Reference Figure 7 and Figure 8 As shown, the outer peripheral wall of the first ratchet 310 is provided with a third limiting part 312, and the inner peripheral wall of the mounting groove 111 is provided with a fourth limiting part 113. The third limiting part 312 and the fourth limiting part 113 cooperate to limit the rotation range of the pedal body 100, which can prevent the pedal body 100 from rotating excessively and causing structural damage, thus playing a certain protective role. Furthermore, both the third limiting part 312 and the fourth limiting part 113 can be set as protruding structures.

[0068] Reference Figure 4 As shown, in some embodiments, the elastic element 500 is configured as a spring, and the second ratchet 320 is provided with an annular groove 324 on the side away from the first ratchet 310. The elastic element 500 extends into the annular groove 324, which can reduce the space occupied.

[0069] Reference Figure 1 and Figure 3As shown, in some embodiments, the foot pedal adjustment mechanism 1000 further includes a slide rail and a fixed seat 610. The slide rail and the fixed seat 610 are slidably connected, and the fixed seat 610 is used for fixed connection with the seat. The first ratchet 310 is fixedly connected to the slide rail. In use, the foot pedal body 100 can be pulled out, causing the slide rail to move along the fixed seat 610, and the foot pedal body 100 extends out of the seat cushion. When not in use, the foot pedal body 100 can be pushed inward, causing the foot pedal body 100 to retract into the bottom of the seat cushion, and the foot pedal body 100 can be stored away.

[0070] A second aspect of the present invention also provides a seat, which includes the foot pedal adjustment mechanism 1000 of the above embodiment, and thus has the above-mentioned technical effects, which will not be repeated here.

[0071] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, front, back, inside, outside, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0072] In the description of this invention, the use of "first" and "second" is for the purpose of distinguishing technical features only, and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or the order of the technical features indicated.

[0073] In the description of this invention, unless otherwise explicitly defined, terms such as "set up," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0074] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A foot pedal adjustment mechanism, characterized in that, include: Foot pedal body; Shaft; A ratchet assembly includes a first ratchet and a second ratchet, both of which are sleeved on the pivot. The first ratchet is fixedly mounted, while the second ratchet is rotatably mounted. The second ratchet is fixedly connected to the foot pedal body. The first ratchet has a first limiting portion, and the second ratchet has a first protrusion. The ratchet assembly has an engaged state and a disengaged state. In the engaged state, the first ratchet and the second ratchet are engaged, and in the disengaged state, the first ratchet and the second ratchet are disengaged. A switching component is rotatably sleeved on the rotating shaft. The switching component has a second limiting part, and the first limiting part cooperates with the second limiting part to limit the rotation range of the switching component. The switching component has a second protrusion, and the second protrusion has a slot. The switching component is used to switch the ratchet assembly between the engaged state and the disengaged state. An elastic element is provided for applying an elastic force to the second ratchet to keep the ratchet assembly in the engaged state; When the ratchet assembly is in the engaged state, the second ratchet can rotate relative to the first ratchet in a single direction. When the second ratchet rotates, the first protrusion can pass over the second protrusion to push the second ratchet out along the axial direction of the rotating shaft, so that the ratchet assembly switches to the disengaged state. When the first protrusion passes over the second protrusion, the first protrusion can cooperate with the slot so that the second ratchet drives the switching member to rotate together.

2. The foot pedal adjustment mechanism according to claim 1, characterized in that, The first protrusion is provided with a first guide surface, and the second protrusion is provided with a second guide surface. The first guide surface and the second guide surface cooperate to allow the first protrusion to pass over the second protrusion.

3. The foot pedal adjustment mechanism according to claim 1, characterized in that, The first limiting part is configured as a groove structure, the first limiting part is arc-shaped, and the first limiting part extends circumferentially along the first ratchet. The second limiting part is configured as a boss structure, and the second limiting part can abut against the groove sidewall of the first limiting part.

4. The foot pedal adjustment mechanism according to claim 1, characterized in that, The switching component includes a first annular portion and a second annular portion connected to each other. Both the first annular portion and the second annular portion are sleeved on the rotating shaft. The outer diameter of the second annular portion is larger than the outer diameter of the first annular portion. The second ratchet is sleeved on the first annular portion. The second annular portion is located between the first ratchet and the second ratchet. The second protrusion is located on the side of the second annular portion near the second ratchet. The slot is located on the side of the second protrusion near the second ratchet. The second limiting portion is located on the side of the second annular portion near the first ratchet.

5. The foot pedal adjustment mechanism according to claim 4, characterized in that, The second ratchet has a third protrusion on the side near the first ratchet, and the first ratchet has a fourth protrusion on the side near the second ratchet. When the second ratchet rotates, the third protrusion can pass over the fourth protrusion to push the second ratchet out along the axial direction of the rotating shaft, so that the ratchet assembly switches to the disengaged state.

6. The foot pedal adjustment mechanism according to claim 5, characterized in that, Both the third protrusion and the fourth protrusion are arc-shaped. The third protrusion extends circumferentially along the second ratchet, and the fourth protrusion extends circumferentially along the first ratchet. The third protrusion and the first protrusion are connected as one unit. The third protrusion is located outside the first protrusion, and the fourth protrusion is located outside the first limiting part.

7. The foot pedal adjustment mechanism according to claim 5, characterized in that, The second annular portion is also provided with a fifth protrusion on the side near the second ratchet. When the second ratchet rotates, the first protrusion can abut against the fifth protrusion to drive the switching member to rotate together. The first protrusion can also pass over the fifth protrusion.

8. The foot pedal adjustment mechanism according to claim 1, characterized in that, The foot pedal body includes a sleeve portion, which is rotatably connected to the rotating shaft. The sleeve portion has a mounting groove, and the ratchet assembly is disposed in the mounting groove. One end of the elastic member abuts against the second ratchet, and the other end of the elastic member abuts against the bottom wall of the mounting groove.

9. The foot pedal adjustment mechanism according to claim 8, characterized in that, The outer peripheral wall of the second ratchet is provided with a positioning part, and the inner peripheral wall of the mounting groove is provided with a positioning groove. The positioning part cooperates with the positioning groove. The outer peripheral wall of the first ratchet is provided with a third limiting part, and the inner peripheral wall of the mounting groove is provided with a fourth limiting part. The third limiting part cooperates with the fourth limiting part to limit the rotation range of the foot pedal body.

10. A seat, characterized in that, The foot pedal adjustment mechanism as described in any one of claims 1 to 9.

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