One-touch angle and height adjustment footrest mechanism and child safety seat thereof

Abstract

This application discloses a foot pedal mechanism for one-button adjustment of angle and height, and a child safety seat thereof, comprising: a connecting rod, an adjusting part, and a foot pedal, wherein the foot pedal is movably connected to the connecting rod via the adjusting part; the adjusting part includes a handle, a connecting part, and a rotating assembly, wherein the handle has an outwardly extending support arm, and the support arm has a positioning groove; the rotating assembly includes a limiting block and a locking block, wherein the limiting block has a limiting groove and a positioning rod that mates with the positioning groove; the locking block is movably connected to the limiting block; the connecting part includes a connecting hole that mates with the connecting rod and a first limiting protrusion that mates with the limiting groove; the connecting rod has multiple locking holes that mate with the locking block, and the foot pedal has a second limiting protrusion that mates with the limiting groove. By setting up the connecting rod, adjusting part, and foot pedal, and by switching the grip position to move the positioning rod within the positioning groove, the one-button adjustment function of angle and height is realized, improving the adjustment accuracy and convenience of the foot pedal mechanism for one-button adjustment of angle and height.

Description

Technical Field

[0001] This application relates to the field of child safety seat technology, and in particular to a foot pedal mechanism for one-button adjustment of angle and height and a child safety seat thereof. Background Technology

[0002] To ensure child safety while riding in a vehicle, child safety seats typically have a footrest underneath. To accommodate children of different heights, the footrest is height-adjustable, providing better protection and stable support for the child's feet. However, many child safety seats on the market do not have adjustable footrests, impacting the user experience. Some footrest adjustment mechanisms with angle adjustment functions suffer from complex structures and unclear adjustment logic, making it impossible to quickly and simultaneously adjust the footrest's height and support angle according to actual needs, thus affecting the safety seat's protective performance and ease of adjustment. Summary of the Invention

[0003] This application provides a foot pedal mechanism for one-button adjustment of angle and height, and a child safety seat thereof, which can quickly and accurately switch between different adjustment functions, improving the adjustment accuracy and convenience of the foot pedal mechanism for one-button adjustment of angle and height.

[0004] In a first aspect, embodiments of this application provide a foot pedal mechanism for one-button adjustment of angle and height, comprising: a connecting rod, an adjusting part, and a foot pedal, wherein the foot pedal is movably connected to the connecting rod via the adjusting part; the adjusting part includes a handle, a connecting part, and a rotating assembly, wherein the handle is provided with an outwardly extending support arm, and the support arm is provided with a positioning groove; the rotating assembly includes a limiting block and a locking block, wherein the limiting block is provided with a limiting groove and a positioning rod that cooperates with the positioning groove; the locking block is movably connected to the limiting block; the connecting part includes a connecting hole that cooperates with the connecting rod and a locking rod that cooperates with the limiting groove. A limiting protrusion; the connecting rod is provided with multiple locking holes that cooperate with the locking block; the foot pedal is provided with a second limiting protrusion that cooperates with the limiting groove; the connecting rod is inserted into the connecting hole and movably connected to the foot pedal; when the handle is in the first position, the locking block is inserted into the locking hole and the limiting groove is separated from the second limiting protrusion, and the foot pedal rotates around the rotating assembly to adjust the angle; when the handle is in the second position, the locking block is pulled out from the locking hole, and the foot pedal moves up and down along the connecting rod and rotates around the rotating assembly to adjust the height and angle of the foot pedal.

[0005] The foot pedal mechanism for one-button adjustment of angle and height according to an embodiment of this application has at least the following beneficial effects: by setting a connecting rod, an adjusting part, and a foot pedal, and by controlling the position of the handle to move the positioning rod within the positioning groove, different adjustment functions can be switched quickly and accurately. When the positioning rod is located at the end of the positioning groove near the connecting part, the foot pedal is in a locked state; when the positioning rod moves in the positioning groove in a direction away from the connecting part, the foot pedal can be used for angle adjustment; when the positioning rod is located at the end of the positioning groove away from the connecting part, the foot pedal can be used for both height and angle adjustment simultaneously, thereby improving the adjustment accuracy and convenience of the foot pedal mechanism for one-button adjustment of angle and height.

[0006] In some embodiments, the limiting block has a receiving cavity, and one side of the receiving cavity has a through hole; one side of the locking block has a protrusion that mates with the locking hole, and the other side of the locking block has a screw hole that mates with the through hole; the locking block is movably connected to the receiving cavity by bolts inserted into the through hole and the screw hole. By providing the receiving cavity and the screw hole, the bolts can secure the locking block to prevent it from falling out of the receiving cavity, and the screw hole can also ensure that the locking block can reciprocate within the receiving cavity, ensuring a flexible connection between the limiting block and the locking block, and improving the structural stability of the foot pedal mechanism for one-button adjustment of angle and height.

[0007] In some embodiments, a reset block is provided between the positioning rod and the limiting groove, and a washer is provided between the bolt and the screw hole; a first spring is provided between the limiting block and the locking block, and the first spring passes through the washer and respectively fits against the reset block and the locking block. By providing the reset block and the washer, the first spring can apply a pushing force to the limiting block. When the grip is reset, the reset block can push the locking block to quickly reset, completing the locking of the connecting rod, thus improving the adjustment accuracy and convenience of the foot pedal mechanism for one-button adjustment of angle and height.

[0008] In some embodiments, the limiting grooves are evenly distributed on the outer side of the accommodating cavity. This structure ensures the structural integrity of the limiting block, saves space occupied by the limiting block, and improves the adjustment accuracy of the foot pedal mechanism for one-button adjustment of angle and height.

[0009] In some embodiments, the connecting rod has a rounded rectangular cross-section, and the protrusion near the connecting rod has an arc shape. This structure ensures that the protrusion can be quickly and accurately inserted into the locking hole during the reset process, avoiding the situation where the connecting rod cannot be locked, and improving the structural stability of the foot pedal mechanism for one-button adjustment of angle and height.

[0010] In some embodiments, the support arm is provided with a sliding groove, and the foot pedal is provided with a positioning post that cooperates with the sliding groove. By setting the sliding groove and the positioning post, it is ensured that the handle can move in a fixed direction, avoiding the situation where the support arm does not move into place, which would affect the adjustment accuracy of the foot pedal mechanism for one-button adjustment of angle and height.

[0011] In some embodiments, the support arm and the rotating assembly are symmetrically arranged on both sides of the connecting portion. This structure ensures that the limiting block and the locking block can lock the connecting rod from both sides, improving the structural stability of the foot pedal mechanism with one-button adjustment of angle and height.

[0012] In some embodiments, the foot pedal is further provided with a cover plate, and the adjusting part is fixed between the foot pedal and the cover plate. The cover plate has an opening that mates with the handle. By providing the cover plate and the opening, the adjusting part can be stably fixed inside the foot pedal, and the user can easily move the handle through the opening, thus improving the ease of use of the foot pedal mechanism for one-button adjustment of angle and height.

[0013] In some embodiments, a fixed post is provided on the side of the handle away from the support arm, and a second spring is also provided inside the foot pedal; the two ends of the second spring are respectively attached to the fixed post and the foot pedal. By providing the fixed post and the second spring, the handle is ensured to quickly return to its original position when no force is applied, thereby driving the limit block and the locking block to lock the connecting rod, improving the structural stability of the foot pedal mechanism for one-button adjustment of angle and height.

[0014] Secondly, embodiments of this application provide a child safety seat, including a footrest mechanism for one-button adjustment of angle and height as described in the first aspect.

[0015] The foot pedal mechanism for one-button adjustment of angle and height and its child safety seat according to the embodiments of this application have at least the following beneficial effects: By setting a connecting rod, an adjusting part, and a foot pedal, and by switching the grip position to move the positioning rod in the positioning groove, the adjustment function of one-button angle and height can be realized. When the positioning rod is located in the positioning groove near the connecting part, the foot pedal is in a locked state; when the positioning rod moves in the positioning groove in a direction away from the connecting part, the foot pedal can be angled; when the positioning rod is located in the positioning groove away from the connecting part, the foot pedal can be height and angle adjusted simultaneously, improving the adjustment accuracy and convenience of the foot pedal mechanism for one-button adjustment of angle and height; by setting a receiving cavity and a screw hole, the bolt can fasten the locking block to prevent the locking block from falling out of the receiving cavity, and the screw hole can also ensure that the locking block can reciprocate in the receiving cavity, ensuring a flexible connection between the limiting block and the locking block, improving the one-button adjustment of angle and height. The system improves the structural stability of the foot pedal mechanism. By incorporating a reset block and shims, the first spring can apply a pushing force to the limit block. When the grip resets, the reset block pushes the locking block to quickly reset, locking the connecting rod and improving the adjustment accuracy and convenience of the one-button angle and height adjustment foot pedal mechanism. The inclusion of a slide groove and positioning post ensures the grip can move in a fixed direction, preventing the support arm from failing to move properly and affecting the adjustment accuracy of the one-button angle and height adjustment foot pedal mechanism. The cover plate and opening ensure the adjustment part is stably fixed inside the foot pedal and allow the user to move the grip through the opening, improving the ease of use of the one-button angle and height adjustment foot pedal mechanism. The fixed post and second spring ensure the grip quickly resets when no force is applied, thereby driving the limit block and locking block to lock the connecting rod, further improving the structural stability of the one-button angle and height adjustment foot pedal mechanism.

[0016] Other features and advantages of this application will be set forth in the following description and will be apparent in part from the description or may be learned by practicing the application. The objectives and other advantages of this application may be realized and obtained by means of the structures particularly pointed out in the description and the accompanying drawings. Attached Figure Description

[0017] Figure 1 A schematic diagram of a foot pedal mechanism for one-button adjustment of angle and height provided in one embodiment of this application; Figure 2 This is a schematic diagram of another angle of the foot pedal mechanism for one-button adjustment of angle and height provided in one embodiment of this application; Figure 3 This is an exploded view of the structure of a foot pedal mechanism for one-button adjustment of angle and height provided in one embodiment of this application; Figure 4 This is a schematic diagram of the one-button adjustable angle and height foot pedal mechanism provided in one embodiment of this application, with the handle in the locked position; Figure 5 This is a schematic diagram of the foot pedal mechanism for one-button adjustment of angle and height provided in one embodiment of this application, with the handle in the first position; Figure 6 This is a schematic diagram of the foot pedal mechanism for one-button adjustment of angle and height provided in one embodiment of this application, with the handle in the second position; Figure 7 yes Figure 3 Enlarged view of the structure of the rotating component. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application. Furthermore, the features, operations, or characteristics described in the specification can be combined in any suitable manner to form various implementations. Simultaneously, the steps or actions described in the method description can be rearranged or adjusted in a manner readily apparent to those skilled in the art. Therefore, the various orders in the specification and drawings are merely for the clear description of a particular embodiment and do not imply a mandatory order, unless otherwise stated that a particular order must be followed.

[0019] In the description of this application, "several" means one or more, "more than" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0020] The serial numbers assigned to components in this document, such as "first" and "second," are used only to distinguish the described objects and have no sequential or technical meaning. The terms "connection" and "linkage" used in this application, unless otherwise specified, include both direct and indirect connections (linkages).

[0021] Reference Figures 1 to 7This application provides a foot pedal mechanism for one-button adjustment of angle and height, including: a connecting rod 100, an adjusting part 200, and a foot pedal 300. The foot pedal 300 is movably connected to the connecting rod 100 via the adjusting part 200. The adjusting part 200 includes a handle 210, a connecting part 220, and a rotating assembly 230. The handle 210 has an outwardly extending support arm 211, and the support arm 211 has a positioning groove 212. The rotating assembly 230 includes a limiting block 231 and a locking block 232. The limiting block 231 has a limiting groove 260 and a positioning rod 233 that cooperates with the positioning groove 212. The locking block 232 is movably connected to the limiting block 231. The connecting part 220 includes a connecting hole 221 that cooperates with the connecting rod 100 and a connecting hole 221 that cooperates with the limiting block 232. The groove 260 is fitted with a first limiting protrusion 222; the connecting rod 100 is provided with multiple locking holes 110 that cooperate with the locking block 232; the foot pedal 300 is provided with a second limiting protrusion 310 that cooperates with the limiting groove 260; the connecting rod 100 is inserted into the connecting hole 221 and movably connected to the foot pedal 300; when the handle 210 is in the first position, the locking block 232 is inserted into the locking hole 110 and the limiting groove 260 is separated from the second limiting protrusion 310, and the foot pedal 300 rotates around the rotating component 230 to adjust the angle; when the handle 210 is in the second position, the locking block 232 is pulled out from the locking hole 110, and the foot pedal 300 moves up and down along the connecting rod 100 and rotates around the rotating component 230 to adjust the height and angle of the foot pedal 300.

[0022] By setting up a connecting rod 100, an adjusting part 200, and a foot pedal 300, and controlling the position of the handle 210 to move the positioning rod 233 within the positioning groove 212, different adjustment functions can be switched quickly and accurately. When the positioning rod 233 is located in the positioning groove 212 near the connecting part 220, the foot pedal 300 is in a locked state. When the positioning rod 233 moves in the positioning groove 212 away from the connecting part 220, the foot pedal 300 can be angled. When the positioning rod 233 is located in the positioning groove 212 away from the connecting part 220, the foot pedal 300 can simultaneously adjust the height and angle, improving the adjustment accuracy and convenience of the foot pedal mechanism for one-button adjustment of angle and height.

[0023] In practical applications, when the handle 210 is in the default position, i.e., the handle 210 is in the locked position, the positioning rod 233 is located in the positioning groove 212 near the connecting part 220, the locking block 232 is inserted into the locking hole 110, and the limiting grooves 260 are engaged with the first limiting protrusion 222 and the second limiting protrusion 310. The foot pedal 300 is fixed to the connecting rod 100 and cannot be adjusted in angle or height. When the user pulls the handle 210, the positioning rod 233 moves in the positioning groove 212 in a direction away from the connecting part 220 until the handle 210 is in the first... When the pedal is in position, the locking block 232 is inserted into the locking hole 110 and the limiting groove 260 is separated from the second limiting protrusion 310. The connecting rod 100 is locked in the connecting hole 221 and the foot pedal 300 rotates around the rotating component 230. At this time, the foot pedal 300 can be adjusted in angle. When the user continues to pull the handle 210 until the positioning rod 233 is located in the positioning groove 212 at the end away from the connecting part 220, the locking block 232 is pulled out from the locking hole 110, and the foot pedal 300 moves up and down along the connecting rod 100 and rotates around the rotating component 230. At this time, the foot pedal 300 can be adjusted in height and angle.

[0024] Reference Figure 7 In some embodiments, the limiting block 231 is provided with a receiving cavity 234, and a through hole 235 is provided on one side of the receiving cavity 234; a protrusion 236 that mates with the locking hole 110 is provided on one side of the locking block 232, and a screw hole 237 that mates with the through hole 235 is provided on the other side of the locking block 232; the locking block 232 is movably connected to the receiving cavity 234 by inserting a bolt 238 into the through hole 235 and the screw hole 237. By providing the receiving cavity 234 and the screw hole 237, the bolt 238 can fasten the locking block 232 to prevent the locking block 232 from falling out of the receiving cavity 234, and the screw hole 237 can also ensure that the locking block 232 can reciprocate within the receiving cavity 234, ensuring a flexible connection between the limiting block 231 and the locking block 232, and improving the structural stability of the foot pedal mechanism for one-button adjustment of angle and height.

[0025] In some embodiments, a reset block 239 is provided between the positioning rod 233 and the limiting groove 260, and a washer 240 is provided between the bolt 238 and the screw hole 237; a first spring 250 is provided between the limiting block 231 and the locking block 232, and the first spring 250 passes through the washer 240 and respectively abuts against the reset block 239 and the locking block 232. By setting the reset block 239 and the washer 240, the first spring 250 can apply a pushing force to the limiting block 231. When the grip 210 is reset, the reset block 239 can push the locking block 232 to quickly reset, completing the locking of the connecting rod 100, and improving the adjustment accuracy and convenience of the foot pedal mechanism for one-button adjustment of angle and height.

[0026] In some embodiments, the limiting grooves 260 are evenly distributed on the outer side of the accommodating cavity 234. This structure ensures the structural integrity of the limiting block 231, saves the space occupied by the limiting block 231, and improves the adjustment accuracy of the foot pedal mechanism for one-button adjustment of angle and height.

[0027] In some embodiments, the cross-section of the connecting rod 100 is a rounded rectangle, and the side of the protrusion 236 near the connecting rod 100 is arc-shaped. This structure ensures that the protrusion 236 can be quickly and accurately inserted into the locking hole 110 during the reset process, avoiding the situation where the connecting rod 100 cannot be locked, and improving the structural stability of the foot pedal mechanism for one-button adjustment of angle and height.

[0028] In some embodiments, the support arm 211 is provided with a slide groove 213, and the foot pedal 300 is provided with a positioning post 320 that cooperates with the slide groove 213. By setting the slide groove 213 and the positioning post 320, it is ensured that the handle 210 can move in a fixed direction, avoiding the situation where the support arm 211 does not move into place, which would affect the adjustment accuracy of the foot pedal mechanism for one-button adjustment of angle and height.

[0029] In some embodiments, the support arm 211 and the rotating assembly 230 are symmetrically arranged on both sides of the connecting portion 220. This structure ensures that the limiting block 231 and the locking block 232 can lock the connecting rod 100 from both sides, improving the structural stability of the foot pedal mechanism with one-button adjustment of angle and height.

[0030] In some embodiments, the foot pedal 300 is further provided with a cover plate 330, and the adjustment part 200 is fixed between the foot pedal 300 and the cover plate 330. The cover plate 330 is provided with an opening 331 that mates with the handle 210. By providing the cover plate 330 and the opening 331, the adjustment part 200 can be stably fixed inside the foot pedal 300, and the user can easily move the handle 210 through the opening 331, thereby improving the ease of use of the foot pedal mechanism for one-button adjustment of angle and height.

[0031] In some embodiments, a fixing post 214 is provided on the side of the grip 210 away from the support arm 211, and a second spring 340 is also provided inside the foot pedal 300; the two ends of the second spring 340 are respectively attached to the fixing post 214 and the foot pedal 300. By setting the fixing post 214 and the second spring 340, the grip 210 is ensured to quickly return to its original position when no force is applied, thereby driving the limit block 231 and the locking block 232 to lock the connecting rod 100, improving the structural stability of the foot pedal mechanism for one-button adjustment of angle and height.

[0032] Reference Figure 5 and Figure 6In some embodiments, the foot pedal 300 is also provided with a guide rail 330, and the lower end of the limiting block 231 is inserted into the guide rail 330 and movably connected to the foot pedal 300. By setting the guide rail 330, it is ensured that the limiting block 231 can move stably closer to or further away from the connecting rod 100 in a fixed direction, and that the handle 210 can drive the limiting block 231 and the locking block 232 to lock the connecting rod 100, thereby improving the structural stability of the foot pedal mechanism for one-button adjustment of angle and height.

[0033] An embodiment of this application provides a child safety seat, including a footrest mechanism for one-button adjustment of angle and height as described above.

[0034] In the installation process of a child safety seat according to an embodiment of this application, firstly, according to the size of the footrest 300, select the corresponding specifications of the handle 210, connecting part 220, limiting block 231 and locking block 232 so that the connecting rod 100 can be movably connected to the footrest 300 through the connecting part 220; then, insert the end of the locking block 232 with the screw hole 237 into the receiving cavity 234, set the first spring 250 on the reset block 239, insert the washer 240 into the middle position of the first spring 250, and then tighten the bolts 238 in sequence. The block passes through the first spring 250, the washer 240, and the through hole 235, and is finally locked into the screw hole 237, so that the locking block 232 is movably disposed in the receiving cavity 234. When the limiting block 231 moves away from the locking block 232, the locking block 232 can be moved in the same direction by the first spring 250 and the washer 240. Then, the connecting part 220 is installed at the notch of the foot pedal 300, so that the first limiting protrusion 222 and the second limiting protrusion 310 are aligned. Next, the limiting groove 260 on the limiting block 231 is inserted. Insert the first limiting protrusion 222 and the second limiting protrusion 310, and insert the lower end of the limiting block 231 into the guide rail 330; next, install the second spring 340 on the fixing post 214 of the grip 210, and then install the grip 210 on the foot pedal 300 so that the positioning rod 233 on the limiting block 231 is inserted into the positioning groove 212 on the support arm 211, the positioning post 320 is inserted into the sliding groove 213, and the other end of the second spring 340 is attached to the inner wall of the foot pedal 300; then, install the cover plate 330 on the foot pedal 300. The opening 331 is aligned with the handle 210. Next, the handle 210 is pulled so that the positioning rod 233 is located in the positioning groove 212 at the end away from the connecting part 220, and the connecting rod 100 is fixed in the connecting hole 221. Finally, the upper end of the connecting rod 100 is installed under the child safety seat to complete the assembly of the child safety seat. The whole process is efficient and controllable, ensuring the convenience of installation of the child safety seat and the positioning accuracy of the foot pedal mechanism for one-button adjustment of angle and height, thereby improving the production efficiency of child safety seats.

[0035] In the use of a child safety seat according to an embodiment of this application, under the push of the second spring 340, the handle 210 drives the support arm 211 to approach the connecting part 220. The positioning rod 233 is located in the positioning groove 212 at one end near the connecting part 220. The locking block 232 is inserted into the locking hole 110. The limiting grooves 260 are engaged with the first limiting protrusion 222 and the second limiting protrusion 310. At this time, the foot pedal 300 is locked on the connecting rod 100. At this time, the foot pedal mechanism for one-button adjustment of angle and height is in the position as follows. Figure 4 The grip 210 shown is in the locked position. At this time, the footrest 300 is locked, and the height and angle of the footrest 300 cannot be adjusted to provide sufficient support for the child's feet and ensure the stability of the child safety seat's foot support.

[0036] When the angle of the foot pedal 300 needs to be adjusted, the user pulls the handle 210, causing the positioning rod 233 to move away from the connecting part 220 within the positioning groove 212 until the handle 210 is in the first position. At this time, the locking block 232 inserts into the locking hole 110, and the limiting groove 260 separates from the second limiting protrusion 310. The connecting rod 100 is locked within the connecting hole 221, and the foot pedal 300 rotates around the rotating assembly 230. In specific applications, when the limiting groove 260 separates from the second limiting protrusion 310, the handle 210 moves the positioning rod 233 to the middle position of the positioning groove 212, so that the foot pedal mechanism for one-button adjustment of angle and height is in the position as shown in the figure. Figure 5 The handle 210 is shown in the first position. At this time, the height of the foot pedal 300 cannot be adjusted, but because the limiting groove 260 is no longer engaged, the foot pedal 300 can freely rotate around the locking block 232. Since the locking block 232 is still inserted into the locking hole 110, it effectively ensures that the foot pedal 300 remains at the same height as the connecting rod 100, preventing the foot pedal 300 from becoming loose. When the foot pedal 300 is rotated to the appropriate position, the handle 210 is released. Under the push of the second spring 340, the handle 210 drives the support arm 211 closer to the connecting part 220, and the foot pedal 300 returns to the locked state. This ensures the safety and ease of adjustment of the child safety seat, improving its protective performance.

[0037] When the height of the foot pedal 300 needs to be adjusted, or when both the height and angle of the foot pedal 300 need to be adjusted simultaneously, the user pulls the handle 210, causing the positioning rod 233 to move within the positioning groove 212 in a direction away from the connecting part 220, until the positioning rod 233 is located at the end of the positioning groove 212 away from the connecting part 220. The handle 210 is then in the second position, the locking block 232 is pulled out of the locking hole 110, and the foot pedal 300 moves up and down along the connecting rod 100 and rotates around the rotating assembly 230, so that the foot pedal mechanism for one-button adjustment of angle and height is in a position similar to... Figure 6The handle 210 is shown in the second position. At this position, the height and angle of the foot pedal 300 can be adjusted simultaneously. This is because the limiting groove 260 is no longer engaged, allowing the foot pedal 300 to rotate freely around the locking block 232. Since the locking block 232 is pulled out of the locking hole 110, the foot pedal 300 can move freely within the connecting hole 221, enabling flexible adjustment of its height and angle. When the foot pedal 300 reaches the appropriate height and angle, releasing the handle 210 causes the support arm 211 to move closer to the connecting part 220 under the push of the second spring 340. The foot pedal mechanism for one-button adjustment of angle and height returns to the locked state, ensuring the safety and ease of adjustment of the child safety seat and improving its protective performance. By pulling the handle 210 to different positions, different adjustment modes can be achieved to meet different needs for adjusting the angle and / or height of the foot pedal 300, improving the adjustment accuracy and convenience of the one-button angle and height adjustment foot pedal mechanism.

[0038] The foot pedal mechanism for one-button adjustment of angle and height and its child safety seat in this application embodiment, by setting up a connecting rod 100, an adjustment part 200 and a foot pedal 300, and by controlling the position of the handle 210, allows the positioning rod 233 to move within the positioning groove 212, thereby realizing the function of one-button adjustment of angle and height. When the positioning rod 233 is located within the positioning groove 212 near the end of the connecting part 220, the foot pedal 300 is in a locked state; when the positioning rod 233 moves within the positioning groove 212 in a direction away from the connecting part 220, the foot pedal 300 can be adjusted in angle. When the positioning rod 233 is located at the end of the positioning groove 212 away from the connecting part 220, the foot pedal 300 can simultaneously adjust the height and angle, improving the adjustment accuracy and convenience of the foot pedal mechanism for one-button adjustment of angle and height; by setting the receiving cavity 234 and the screw hole 237, the bolt 238 can fasten the locking block 232 to prevent the locking block 232 from falling out of the receiving cavity 234, and the screw hole 237 can also ensure that the locking block 232 can reciprocate within the receiving cavity 234, ensuring a flexible connection between the limiting block 231 and the locking block 232, and improving the one-button angle adjustment. The structure of the foot pedal mechanism is stable, and the reset block 239 and shim 240 are provided to facilitate the first spring 250 to apply a pushing force to the limit block 231. When the grip 210 is reset, the reset block 239 can push the locking block 232 to quickly reset, completing the locking of the connecting rod 100, thus improving the adjustment accuracy and convenience of the foot pedal mechanism for one-button adjustment of angle and height. The slide groove 213 and positioning post 320 are provided to ensure that the grip 210 can move in a fixed direction, avoiding the situation where the support arm 211 does not move into place, which would affect the one-button adjustment. The adjustment accuracy of the foot pedal mechanism for angle and height is improved. By setting the cover plate 330 and the opening 331, the adjustment part 200 can be stably fixed in the foot pedal 300, and the user can easily move the handle 210 through the opening 331, which improves the ease of use of the foot pedal mechanism for one-button adjustment of angle and height. By setting the fixing column 214 and the second spring 340, the handle 210 is guaranteed to quickly reset when no force is applied, thereby driving the limit block 231 and the locking block 232 to lock the connecting rod 100, which improves the structural stability of the foot pedal mechanism for one-button adjustment of angle and height.

[0039] In the several embodiments provided in this application, it should be understood that the disclosed systems, instruments, and methods can be implemented in other ways. For example, the instrument embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the shown or discussed mutual couplings, direct couplings, or communication connections may be through some interfaces; indirect couplings or communication connections between instruments or units may be electrical, mechanical, or other forms. Units described as separate components may or may not be physically separate, and components shown as units may or may not be physical units, i.e., they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0040] The above is a detailed description of the preferred embodiments of this application. However, this application is not limited to the above embodiments. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of this application. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.

Claims

1. A foot pedal mechanism for one-button adjustment of angle and height, characterized in that, include: The system comprises a connecting rod, an adjusting part, and a foot pedal, the foot pedal being movably connected to the connecting rod via the adjusting part; the adjusting part includes a handle, a connecting part, and a rotating assembly, the handle having an outwardly extending support arm with a positioning groove; the rotating assembly includes a limiting block and a locking block, the limiting block having a limiting groove and a positioning rod cooperating with the positioning groove; the locking block being movably connected to the limiting block; the connecting part including a connecting hole cooperating with the connecting rod and a first limiting protrusion cooperating with the limiting groove; the connecting rod having multiple... The foot pedal has a locking hole that engages with the locking block, and a second limiting protrusion that engages with the limiting groove. The connecting rod is inserted into the connecting hole and movably connected to the foot pedal. When the handle is in the first position, the locking block is inserted into the locking hole and the limiting groove separates from the second limiting protrusion, allowing the foot pedal to rotate around the rotating assembly for angle adjustment. When the handle is in the second position, the locking block is pulled out of the locking hole, and the foot pedal moves up and down along the connecting rod and rotates around the rotating assembly to adjust the height and angle of the foot pedal.

2. The foot pedal mechanism for one-button adjustment of angle and height according to claim 1, characterized in that, The limiting block is provided with a receiving cavity, and a through hole is provided on one side of the receiving cavity; a protrusion that mates with the locking hole is provided on one side of the locking block, and a screw hole that mates with the through hole is provided on the other side of the locking block; the locking block is movably connected to the receiving cavity by inserting a bolt into the through hole and the screw hole.

3. The foot pedal mechanism for one-button adjustment of angle and height according to claim 2, characterized in that, A reset block is provided between the positioning rod and the limiting groove, and a washer is provided between the bolt and the screw hole; a first spring is provided between the limiting block and the locking block, and the first spring passes through the washer and respectively fits the reset block and the locking block.

4. The foot pedal mechanism for one-button adjustment of angle and height according to claim 3, characterized in that, The limiting grooves are evenly distributed on the outer side of the accommodating cavity.

5. The foot pedal mechanism for one-button adjustment of angle and height according to claim 2, characterized in that, The cross-section of the connecting rod is a rounded rectangle, and the side of the protrusion closest to the connecting rod is arc-shaped.

6. The foot pedal mechanism for one-button adjustment of angle and height according to claim 1, characterized in that, The support arm is provided with a sliding groove, and the foot pedal is provided with a positioning post that cooperates with the sliding groove.

7. The foot pedal mechanism for one-button adjustment of angle and height according to claim 6, characterized in that, The support arm and the rotating assembly are symmetrically arranged on both sides of the connecting part.

8. The foot pedal mechanism for one-button adjustment of angle and height according to claim 1, characterized in that, The foot pedal is also provided with a cover plate, and the adjustment part is fixed between the foot pedal and the cover plate. The cover plate is provided with an opening that cooperates with the handle.

9. The foot pedal mechanism for one-button adjustment of angle and height according to claim 1, characterized in that, A fixing post is provided on the side of the grip away from the support arm, and a second spring is provided inside the foot pedal; the two ends of the second spring are respectively attached to the fixing post and the foot pedal.

10. A child safety seat, comprising a footrest mechanism for one-button adjustment of angle and height as described in any one of claims 1 to 9.

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