Pedal mechanism and seat

Abstract

The utility model discloses a pedal mechanism and a seat, the pedal mechanism comprises a supporting assembly and an adjusting assembly, the supporting assembly comprises a connecting seat and a pedal plate, the pedal plate is provided with a rotating shaft, and the rotating shaft is rotatably connected to the connecting seat; the adjusting assembly comprises a ratchet wheel, a pawl, a reset wheel, a first spring and a second spring, the ratchet wheel is fixedly connected to the rotating shaft, the pawl is rotationally connected to the connecting base, the first spring is arranged between the connecting base and the pawl to drive the pawl to abut against the ratchet wheel, the reset wheel is rotationally connected to the ratchet wheel, and the ratchet wheel is provided with a check block in a protruding mode in the axial direction close to the reset wheel. The reset wheel is provided with a first ejector block in a protruding mode in the radial direction, the check block can abut against the first ejector block, the first ejector block can abut against the pawl so that the pawl can be separated from the ratchet wheel, and the second spring is arranged between the connecting base and the ratchet wheel and used for driving the ratchet wheel to rotate and reset. The adjustment convenience can be improved, and the use experience of a user is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of household products, and particularly relates to a footrest mechanism and a seat. Background Art

[0002] A seat is usually provided with a footrest which can be extended for users to rest, and at the same time, the footrest can be rotated to achieve angle adjustment. In the related art, the seat is provided with a footrest adjustment mechanism, but the adjustment of these footrest mechanisms is relatively cumbersome, and it is necessary to perform multiple operations to unlock and flip, which is difficult to operate and affects the user experience. Content of the Utility Model

[0003] The utility model aims to at least solve one of the technical problems existing in the prior art. For this purpose, the utility model provides a footrest mechanism which can improve the convenience of adjustment and enhance the user experience.

[0004] The utility model also provides a seat with the above footrest mechanism.

[0005] According to the footrest mechanism of the first aspect embodiment of the utility model, it includes a support assembly and an adjustment assembly. The support assembly includes a connection seat and a footrest plate. The footrest plate is provided with a rotating shaft which is rotatably connected to the connection seat. The adjustment assembly includes a ratchet wheel, a ratchet pawl, a reset wheel, a first spring and a second spring. The ratchet wheel is fixedly connected to the rotating shaft. The ratchet pawl is rotatably connected to the connection seat. The first spring is arranged between the connection seat and the ratchet pawl to drive the ratchet pawl to abut against the ratchet wheel. The reset wheel is rotatably connected to the ratchet wheel. The ratchet wheel is provided with a stop block protruding axially towards the reset wheel. The reset wheel is provided with a first top block protruding radially. The stop block can abut against the first top block, and the first top block can abut against the ratchet pawl to separate the ratchet pawl from the ratchet wheel. The second spring is arranged between the connection seat and the ratchet wheel, and the second spring is used to drive the ratchet wheel to rotate and reset.

[0006] The pedal mechanism according to the embodiments of the present utility model has at least the following beneficial effects: The rotating shaft is fixedly connected to the pedal, and the rotating shaft is rotatably connected to the connecting seat, so that the pedal can rotate on the connecting seat. The ratchet wheel is fixedly connected to the rotating shaft, the pawl is rotatably connected to the connecting seat, and the first spring is arranged between the connecting seat and the pawl. The first spring can drive the pawl to abut against the ratchet wheel, so that the ratchet wheel and the pawl are engaged, and the rotation angle of the pedal can be conveniently adjusted and locked. The stop block is arranged along the axial direction of the ratchet wheel towards the direction close to the reset wheel, and the first top block protrudes along the radial direction of the reset wheel. When the ratchet wheel rotates, the stop block can abut against the first top block, so that the ratchet wheel and the reset wheel can rotate synchronously, the first top block can lift the pawl, and further the ratchet wheel and the pawl can be separated. Only by flipping the pedal can the position of the pedal be unlocked, which is convenient for the pedal to reset. Moreover, the second spring is arranged between the connecting seat and the ratchet wheel, so that the second spring can drive the ratchet wheel to rotate, the pedal can automatically reset and retract, the position of the pedal can be stabilized, the convenience and reliability of the pedal mechanism in use are improved, and the user experience is enhanced.

[0007] According to some embodiments of the present utility model, the reset wheel protrudes radially with a second top block, the stop block can abut against the second top block, a gap is arranged between the first top block and the second top block, and the pawl can be located in the gap.

[0008] According to some embodiments of the present utility model, a groove is arranged on the side wall of the first top block, and the pawl can be caught in the groove.

[0009] According to some embodiments of the present utility model, the connecting seat is connected with an elastic block, the elastic block is provided with a positioning groove, a positioning strip protrudes from the side wall of the rotating shaft, and the positioning strip can be caught in the positioning groove.

[0010] According to some embodiments of the present utility model, the shape of the positioning strip is set to be semi-cylindrical, and the shapes of the positioning groove and the positioning strip match.

[0011] According to some embodiments of the present utility model, the connecting seat is provided with an installation groove, and the elastic block is detachably connected in the installation groove.

[0012] According to some embodiments of the present utility model, the connecting seat is provided with a limiting groove, the rotating shaft is provided with a limiting block, the limiting block is rotatably connected in the limiting groove, and the limiting block can abut against the end of the limiting groove.

[0013] According to some embodiments of the present utility model, a guiding groove is arranged on the pawl, and the first spring is installed in the guiding groove.

[0014] According to some embodiments of the present utility model, a guide rod is protrudingly provided on the bottom wall of the guide groove, and the guide rod is inserted into the first spring.

[0015] The seat according to the second aspect embodiment of the present utility model includes the footrest mechanism of the first aspect embodiment of the present utility model.

[0016] The seat according to the embodiment of the present utility model has at least the following beneficial effects: By providing the footrest mechanism of the first aspect embodiment of the present utility model, the adjustment convenience of the footrest can be improved, and the footrest can be automatically retracted under the seat, improving the user experience.

[0017] The additional aspects and advantages of the present utility model will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the present utility model. Description of the Drawings

[0018] The following further describes the present utility model in conjunction with the drawings and embodiments, where:

[0019] Figure 1 is a schematic diagram of the footrest mechanism according to the first aspect embodiment of the present utility model;

[0020] Figure 2 is a schematic diagram of the connecting seat of the footrest mechanism according to the first aspect embodiment of the present utility model;

[0021] Figure 3 is a cross-sectional view of the footrest mechanism according to the first aspect embodiment of the present utility model;

[0022] Figure 4 is an exploded view of the footrest mechanism according to the first aspect embodiment of the present utility model;

[0023] Figure 5 is another exploded view of the footrest mechanism according to the first aspect embodiment of the present utility model;

[0024] Figure 6 is an exploded view of the connecting seat of the footrest mechanism according to the first aspect embodiment of the present utility model;

[0025] Figure 7 is a schematic diagram of the rotating shaft of the footrest mechanism according to the first aspect embodiment of the present utility model.

[0026] Reference Signs:

[0027] Support assembly 100, connecting seat 110, elastic block 111, positioning groove 112, installation groove 113, limiting groove 114, footrest 120, rotating shaft 130, positioning strip 131, limiting block 132, first connecting portion 133, second connecting portion 134, first connecting block 135, first connecting groove 136;

[0028] Adjusting assembly 200, ratchet wheel 210, stop block 211, second connecting groove 212, second connecting block 213, pawl 220, guiding groove 221, guiding rod 222, reset wheel 230, first top block 231, second top block 232, gap 233, groove 234, first spring 240, second spring 250. Specific embodiments

[0029] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the 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 by referring to the drawings are exemplary and are only used to explain the present invention, and should not be construed as a limitation of the present invention.

[0030] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by terms such as up, down, front, back, left, right, etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present invention.

[0031] In the description of the present invention, the meaning of "several" is one or more, the meaning of "multiple" is two or more, "greater than", "less than", "exceeding", etc. are understood as not including the present number, and "above", "below", "within", etc. are understood as including the present number. If there is a description of "first" and "second", it is only for the purpose of distinguishing technical features, and should not be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence of the indicated technical features.

[0032] In the description of the present invention, unless otherwise clearly defined, terms such as "set", "installed", "connected", etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific content of the technical solution.

[0033] It can be understood that with reference to Figure 1 and Figures 3 to 5, the foot pedal mechanism of the first aspect embodiment of the present utility model includes a support assembly 100 and an adjustment assembly 200. The support assembly 100 includes a connection seat 110 and a foot pedal 120. A rotating shaft 130 is provided on the foot pedal 120, and the rotating shaft 130 is rotatably connected to the connection seat 110. The adjustment assembly 200 includes a ratchet wheel 210, a pawl 220, a return wheel 230, a first spring 240, and a second spring 250. The ratchet wheel 210 is fixedly connected to the rotating shaft 130, the pawl 220 is rotatably connected to the connection seat 110, and the first spring 240 is disposed between the connection seat 110 and the pawl 220 to drive the pawl 220 to abut against the ratchet wheel 210. The return wheel 230 is rotatably connected to the ratchet wheel 210. A stop block 211 is provided on the ratchet wheel 210 protruding axially towards the return wheel 230. A first top block 231 is provided on the return wheel 230 protruding radially. The stop block 211 can abut against the first top block 231, and the first top block 231 can abut against the pawl 220 to separate the pawl 220 from the ratchet wheel 210. The second spring 250 is disposed between the connection seat 110 and the ratchet wheel 210, and the second spring 250 is used to drive the ratchet wheel 210 to rotate and reset.

[0034] The rotating shaft 130 is fixedly connected to the foot pedal 120, and the rotating shaft 130 is rotatably connected to the connection seat 110, enabling the foot pedal 120 to rotate on the connection seat 110. The ratchet wheel 210 is fixedly connected to the rotating shaft 130, the pawl 220 is rotatably connected to the connection seat 110, and the first spring 240 is disposed between the connection seat 110 and the pawl 220. Through the first spring 240, the pawl 220 can be driven to abut against the ratchet wheel 210, causing the ratchet wheel 210 and the pawl 220 to engage, facilitating the adjustment and locking of the rotation angle of the foot pedal 120. The stop block 211 is arranged axially on the ratchet wheel 210 towards the return wheel 230, and the first top block 231 protrudes radially on the return wheel 230. When the ratchet wheel 210 rotates, the stop block 211 can abut against the first top block 231, enabling the ratchet wheel 210 to rotate synchronously with the return wheel 230, causing the first top block 231 to lift the pawl 220, and further separating the ratchet wheel 210 from the pawl 220. Only by flipping the foot pedal 120 can the position of the foot pedal 120 be unlocked, facilitating the reset of the foot pedal 120. Moreover, the second spring 250 is disposed between the connection seat 110 and the ratchet wheel 210, enabling the second spring 250 to drive the ratchet wheel 210 to rotate, allowing the foot pedal 120 to automatically reset and retract, stabilizing the position of the foot pedal 120, improving the usability and reliability of the foot pedal 120 mechanism, and enhancing the user experience.

[0035] It should be noted that the pedal 120 is driven to flip along the first direction, so that the ratchet 210 can rotate, the pawl 220 can slide on the side wall of the ratchet 210, and the ratchet 210 can mesh with the pawl 220, so that the position of the pedal 120 can be locked; the pedal 120 is driven to continue to flip along the first direction, so that the ratchet 210 continues to rotate, so that the block 211 abuts against the first top block 231, and the ratchet 210 can rotate synchronously with the reset wheel 230, so that the first top block 231 can prop up the pawl 220, so that the ratchet 210 and the pawl 220 are separated, and then the pedal 120 can be flipped along the second direction, which is convenient for resetting the pedal 120. The pedal 120 can be reset by only flipping the position of the pedal 120, thereby improving the convenience of adjustment. Among them, the flipping directions of the first direction and the second direction are opposite.

[0036] In addition, by providing the second spring 250, the foot pedal 120 can be driven to automatically return to its original position, so that the foot pedal 120 can be automatically tightened under the seat, and the position shaking of the foot pedal 120 can be reduced, thereby improving the user experience.

[0037] It is understandable that, referring to Figure 1 , Figure 4 and Figure 5 The reset wheel 230 is provided with a second top block 232 protruding radially, the stopper 211 can abut against the second top block 232 , a gap 233 is provided between the first top block 231 and the second top block 232 , and the pawl 220 can be located in the gap 233 . The second top block 232 is provided to protrude radially along the reset wheel 230, and the first top block 231 and the second top block 232 are arranged at intervals along the circumference of the reset wheel 230, and a gap 233 is provided between the first top block 231 and the second top block 232. When the foot pedal 120 flips along the first direction, the stopper 211 can abut against the first top block 231 to drive the reset wheel 230 to rotate along the first direction, so that the first top block 231 drives the ratchet 210 to separate from the pawl 220; when the foot pedal 120 flips along the second direction, the stopper 211 can abut against the second top block 232 to drive the reset wheel 230 to rotate along the second direction, so that the pawl 220 can slide from the first top block 231 into the gap 233, so that the pawl 220 and the ratchet 210 are smoothly engaged, thereby stabilizing the position of the foot pedal 120 and improving the reliability of the foot pedal mechanism.

[0038] It should be noted that the foot pedal 120 is provided with a supporting state and a reset state. When the foot pedal 120 is in the supporting state, the pawl 220 is located in the gap 233, so that the ratchet 210 can engage with the pawl 220; when the foot pedal 120 is in the reset state, the pawl 220 abuts against the first top block 231, so that the ratchet 210 and the pawl 220 are separated.

[0039] It is understandable that, referring toFigure 1 , Figure 4 and Figure 5 The side wall of the first top block 231 is provided with a groove 234, and the pawl 220 can be inserted into the groove 234. When the first top block 231 props up the pawl 220, the pawl 220 can be inserted into the groove 234, so that the pawl 220 can stabilize the position of the reset wheel 230, and prevent the reset wheel 230 from rotating when the ratchet wheel 210 is reset, so that the pawl 220 can be stabilized on the first top block 231, which facilitates the smooth reset of the foot pedal 120 and improves the reliability of the adjustment mechanism.

[0040] In addition, when the stop block 211 abuts against the first top block 231 and drives the reset wheel 230 to rotate, the pawl 220 can be inserted into the groove 234, which can facilitate the user to feel the pedal 120 switching from the supporting state to the reset state, thereby improving the adjustment convenience of the pedal 120 and enhancing the user's experience.

[0041] It is understandable that, referring to Figure 1 , Figures 4 to 6 The connection seat 110 is connected to an elastic block 111, which is provided with a positioning groove 112. The side wall of the rotating shaft 130 is provided with a positioning strip 131 protruding therefrom, and the positioning strip 131 can be inserted into the positioning groove 112. The elastic block 111 is provided in the connection seat 110, the elastic block 111 is provided with a positioning groove 112, and the side wall of the rotating shaft 130 is provided with a positioning strip 131 protruding therefrom. The foot pedal 120 is flipped to rotate the rotating shaft 130, so that the positioning strip 131 can be inserted into the positioning groove 112, so that the position of the rotating shaft 130 can be stabilized, and then the position of the foot pedal 120 can be positioned, so as to reduce the shaking of the position of the foot pedal 120 and improve the user experience.

[0042] It should be noted that, refer to Figure 1 , Figure 4 , Figure 5 and Figure 7 The rotating shaft 130 is provided with a first connecting portion 133 and a second connecting portion 134, and the first connecting portion 133 and the second connecting portion 134 are both sleeved on the rotating shaft 130. The ratchet 210 is located between the first connecting portion 133 and the second connecting portion 134. The first connecting block 135 and the second connecting block 213 are both rotatably connected to the connecting seat 110. The first connecting portion 133 is axially protruding with a first connecting block 135, and the second connecting portion 134 is provided with a first connecting groove 136. One side of the ratchet 210 is provided with a second connecting groove 212, and the other side is provided with a second connecting block 213. By setting the first connecting block 135 to be inserted in the second connecting groove 212, and the second connecting block 213 to be inserted in the first connecting groove 136, the ratchet 210, the first connecting portion 133, and the second connecting portion 134 can rotate synchronously, so that the ratchet 210 and the rotating shaft 130 can be fixedly connected.

[0043] Among them, the positioning bar 131 is arranged on the second connecting part 134. By arranging the positioning groove 112 on the elastic block 111, the position of the positioning bar 131 can be stably positioned, so that the position of the second connecting part 134 can be stabilized, the position shaking of the rotating shaft 130 can be reduced, and the reliability of the pedal mechanism can be improved.

[0044] In addition, the elastic block 111 can be a plastic part or a metal part, so that the positioning bar 131 can be snapped into the positioning groove 112, facilitating the positioning of the position of the rotating shaft 130.

[0045] Specifically, referring to Figure 1 、 Figure 4 and Figure 5 , the shape of the positioning bar 131 is set to a semi-cylindrical shape, and the shape of the positioning groove 112 matches that of the positioning bar 131. By setting the shapes of both the positioning bar 131 and the positioning groove 112 to be semi-cylindrical, the positioning bar 131 can be smoothly snapped into the positioning groove 112, reducing the wear between the positioning groove 112 and the positioning bar 131, thus facilitating the positioning of the position of the rotating shaft 130 and improving the reliability of the pedal mechanism.

[0046] Specifically, referring to Figure 1 and Figure 6 , the connecting seat 110 is provided with an installation groove 113, and the elastic block 111 is detachably connected to the installation groove 113. The connecting seat 110 is provided with the installation groove 113, and the elastic block 111 is detachably connected to the installation groove 113 to facilitate the replacement of the elastic block 111, extend the service life of the pedal mechanism, and improve the maintenance convenience of the pedal mechanism.

[0047] It can be understood that, referring to Figure 1 、 Figure 2 and Figure 4 , the connecting seat 110 is provided with a limiting groove 114, the rotating shaft 130 is provided with a limiting block 132, and the limiting block 132 is rotatably connected to the limiting groove 114, and the limiting block 132 can abut against the end of the limiting groove 114. The connecting seat 110 is provided with the limiting groove 114, and the rotating shaft 130 is provided with the limiting block 132. By setting that the limiting block 132 can slide in the limiting groove 114, the position of the rotating shaft 130 can be guided, and the limiting block 132 can abut against the end of the limiting groove 114, the rotation angle of the rotating shaft 130 can be limited to prevent excessive rotation of the pedal and improve the reliability of the pedal mechanism.

[0048] Among them, the number of both the limiting block 132 and the limiting groove 114 is set to two. The two limiting blocks 132 are respectively arranged on the first connecting part 133 and the second connecting part 134, and the two limiting grooves 114 are respectively arranged on both sides of the connecting seat 110, and the limiting block 132 and the limiting groove 114 are in one-to-one correspondence.

[0049] It can be understood that, with reference to Figure 3 , the pawl 220 is provided with a guiding groove 221, and the first spring 240 is installed in the guiding groove 221. By arranging the first spring 240 in the guiding groove 221 provided in the pawl 220, the position of the first spring 240 can be conveniently positioned, so that the first spring 240 can be stably located between the connecting seat 110 and the pawl 220, avoiding the position deviation of the first spring 240 and improving the position stability of the pawl 220.

[0050] Specifically, with reference to Figure 3 , a guiding rod 222 is protrudingly provided on the bottom wall of the guiding groove 221, and the guiding rod 222 passes through the first spring 240. By arranging the guiding rod 222 on the bottom wall of the guiding groove 221 and passing through the first spring 240, the first spring 240 can be positioned in the guiding groove 221 to stabilize the position of the first spring 240, so that the first spring 240 can be stressed stably and the reliability of the pedal mechanism can be improved.

[0051] It can be understood that the seat according to the second aspect embodiment of the present invention includes the pedal mechanism according to the first aspect embodiment of the present invention. Since it has all the technical features of the pedal mechanism of the embodiment of the present invention, it also has the beneficial effects of all the above embodiments, which will not be elaborated here.

[0052] The embodiments of the present invention have been described in detail above with reference to the drawings. However, the present invention is not limited to the above embodiments. Within the knowledge scope of those of ordinary skill in the art, various changes can be made without departing from the purpose of the present invention.

Claims

1. Foot-operated mechanism, characterized in that, Comprising: A support assembly, including a connecting seat and a foot pedal, the foot pedal is provided with a rotating shaft, and the rotating shaft is rotatably connected to the connecting seat; An adjusting assembly, including a ratchet wheel, a pawl, a return wheel, a first spring and a second spring, the ratchet wheel is fixedly connected to the rotating shaft, the pawl is rotatably connected to the connecting seat, the first spring is arranged between the connecting seat and the pawl to drive the pawl to abut against the ratchet wheel, the return wheel is rotatably connected to the ratchet wheel, the ratchet wheel is provided with a stop block protruding axially towards the direction close to the return wheel, the return wheel is provided with a first top block protruding radially, the stop block can abut against the first top block, the first top block can abut against the pawl to separate the pawl from the ratchet wheel, the second spring is arranged between the connecting seat and the ratchet wheel, and the second spring is used to drive the ratchet wheel to rotate and reset.

2. The pedal mechanism according to claim 1, characterized in that, The return wheel is provided with a second top block protruding radially, the stop block can abut against the second top block, there is a gap between the first top block and the second top block, and the pawl can be located in the gap.

3. The pedal mechanism according to claim 1, characterized in that, A groove is arranged on the side wall of the first top block, and the pawl can be stuck into the groove.

4. The pedal mechanism according to claim 1, characterized in that, The connecting seat is connected with an elastic block, the elastic block is provided with a positioning groove, and a positioning strip protrudes from the side wall of the rotating shaft, and the positioning strip can be stuck into the positioning groove.

5. The pedal mechanism according to claim 4, characterized in that, The shape of the positioning strip is set as semi-cylindrical, and the shapes of the positioning groove and the positioning strip match.

6. The pedal mechanism according to claim 4, characterized in that, The connecting seat is provided with an installation groove, and the elastic block is detachably connected to the installation groove.

7. The pedal mechanism according to claim 1, characterized in that, The connecting seat is provided with a limiting groove, the rotating shaft is provided with a limiting block, the limiting block is rotatably connected to the limiting groove, and the limiting block can abut against the end of the limiting groove.

8. The pedal mechanism according to claim 1, wherein, The pawl is provided with a guiding groove, and the first spring is installed in the guiding groove.

9. The pedal mechanism according to claim 8, characterized in that, A guiding rod protrudes from the bottom wall of the guiding groove, and the guiding rod penetrates through the first spring.

10. Seat, characterized in that, Including a foot pedal mechanism according to any one of claims 1 to 9.

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