Stroller

Abstract

The application relates to a baby carriage, comprising a carriage frame and a conversion driving mechanism, the carriage frame being provided with a folding mechanism; the conversion driving mechanism is movably connected to the carriage frame and can be switched between a first use mode and a second use mode. In the first use mode, when the conversion driving mechanism is moved relative to the carriage frame, the conversion driving mechanism can drive the folding mechanism to be unlocked, so as to allow the carriage frame to be folded.

Description

Technical Field

[0001] This application relates to the field of children's products technology, and in particular to a stroller. Background Technology

[0002] Strollers are essential tools for parents traveling with children, offering both trailer and pushcart modes to suit different needs. They are also designed to be foldable for easy storage and transport, allowing them to unfold when in use and fold when not in use. However, the switching between modes and folding positions in common strollers is complex, causing inconvenience for parents and compromising safety. Utility Model Content

[0003] Therefore, it is necessary to provide a stroller that is easy to operate and can quickly switch between usage modes and states to address the above problems.

[0004] This application provides a children's stroller. It includes: a frame with a folding mechanism; and a switching drive mechanism movably connected to the frame and capable of switching between a first usage mode and a second usage mode; in the first usage mode, when the switching drive mechanism is movable relative to the frame, the switching drive mechanism can drive the folding mechanism to release, allowing the frame to fold.

[0005] In one embodiment, the switching drive mechanism includes: a grip assembly movably connected to the frame and capable of switching between a first usage mode and a second usage mode; and a first slider slidably disposed on the frame and pivotally connected to the grip assembly, the first slider being movable relative to the frame between a first position and a second position to allow the grip assembly to switch accordingly between the first usage mode and the second usage mode.

[0006] In one embodiment, in the first usage mode, the first slider can move from the first position to a third position to drive the folding mechanism to release, thereby allowing the frame to fold.

[0007] In one embodiment, the conversion drive mechanism further includes a locking member movably disposed within the frame and having a locked position and an unlocked position. When the locking member is in the locked position, it locks the first slider in the first position to restrict the grip assembly to the first usage mode. When the locking member is in the unlocked position, it releases the lock on the first slider, allowing the first slider to move from the first position to the second position, enabling the grip assembly to switch from the first usage mode to the second usage mode; or it moves from the first position to the third position to drive the folding mechanism to release the lock, allowing the frame to fold.

[0008] In one embodiment, the first sliding member is provided with a first limiting recess; a fixed seat is provided inside the frame, and the locking member is slidably disposed on the fixed seat so as to be movable between the locked position and the unlocked position; when the locking member is in the locked position, the locking member passes through the frame and extends into the first limiting recess, so as to lock the first sliding member in the first position; when the locking member is in the unlocked position, the locking member retracts from the first limiting recess, so as to allow the first sliding member to slide.

[0009] In one embodiment, the conversion drive mechanism further includes a release assembly movably disposed on the frame and operably connected to the locking member to allow the locking member to move between the locked position and the unlocked position.

[0010] In one embodiment, the frame further includes a base frame and a side frame, and the folding mechanism is movably connected between the base frame and the side frame, and can switch between a folded state and an extended state; when the folding mechanism is in the extended state, a load-bearing space is formed between the side frame, the folding mechanism and the base frame; when the folding mechanism is in the folded state, the frame folds to bring the side frame and the base frame closer together.

[0011] In one embodiment, the folding mechanism includes: a second sliding member slidably disposed on the base frame; a first connecting rod, one end of which is pivotally and slidably connected to the enclosure or the base frame, and the other end of which is pivotally connected to the base frame or the enclosure; and a second connecting rod, which is cross-pivotally connected to the first connecting rod, and both ends of the second connecting rod are pivotally connected to the enclosure and the second sliding member, respectively.

[0012] In one embodiment, the folding mechanism further includes a locking member movably disposed within the base frame and capable of switching between a locked position and an unlocked position; when the locking member is in the locked position, the locking member can lock into the second sliding member to restrict the folding of the frame; when the locking member is in the unlocked position, the locking member releases the lock on the second sliding member to allow the frame to fold.

[0013] In one embodiment, the first slider has a first abutting portion. When the first slider moves from the first position to the third position, the first abutting portion abuts against the locking member, causing the locking member to switch from the locked position to the unlocked position. Attached Figure Description

[0014] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute an undue limitation of this application.

[0015] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Furthermore, the accompanying drawings are not drawn to a 1:1 scale, and the relative dimensions of the various components are shown as examples only and not necessarily to scale. In the accompanying drawings:

[0017] Figure 1 This is a side view of a stroller according to an embodiment of this application, wherein the conversion drive mechanism is in a first usage mode;

[0018] Figure 2 for Figure 1 The image shown is a 3D view of the stroller with the seat cover and canopy undone omitted, and the frame is in the unfolded state.

[0019] Figure 3 This is a side view of a stroller according to an embodiment of the present application, wherein the conversion drive mechanism is in a first transition mode between a first usage mode and a second usage mode;

[0020] Figure 4 This is a perspective view of a stroller according to an embodiment of the present application, wherein the conversion drive mechanism is in a second transition mode between a first usage mode and a second usage mode;

[0021] Figure 5 This is a side view of a stroller according to an embodiment of this application, wherein the conversion drive mechanism is in a second usage mode;

[0022] Figure 6 For along Figure 2 A cross-sectional view along line U1-U1, wherein the first sliding member is in the first position and the locking member is in the locked position;

[0023] Figure 7 For along Figure 2 A cross-sectional view along line U1-U1, wherein the first sliding member is in the first position and the locking member is in the unlocked position;

[0024] Figure 8 For along Figure 2 A cross-sectional view along line U1-U1, wherein the first slider is located between the first position and the second position;

[0025] Figure 9This is a perspective view of a portion of the structure of the release mechanism in a stroller according to an embodiment of this application;

[0026] Figure 10 for Figure 9 An exploded view of the structure shown;

[0027] Figure 11 This is a perspective view of the release mechanism in a stroller according to one embodiment of this application;

[0028] Figure 12 for Figure 11 An exploded view of the structure shown;

[0029] Figure 13 for Figure 1 The side view of the stroller shown is without the seat cover and canopy seat cover, with the frame in a transitional state between the unfolded and folded states.

[0030] Figure 14 for Figure 1 The side view of the stroller shown is without the seat cover and canopy cover, with the frame folded down.

[0031] Figure 15 For along Figure 2 A cross-sectional view along line U1-U1, showing the locking element in the locked position;

[0032] Figure 16 For along Figure 2 A cross-sectional view along line U1-U1, showing the locking element in the unlocked position;

[0033] Figure 17 In another embodiment, along Figure 2 A cross-sectional view along line U1-U1, with the locking element in the locked position;

[0034] Figure 18 for Figure 17 A perspective view of the locking component and part of the release assembly shown;

[0035] Figure 19 for Figure 1 The image shown is a 3D view of the stroller with the seat cover and roof cover omitted, and part of the rear wheel is also omitted.

[0036] Figure 20 For along Figure 19 A cross-sectional view along line U2-U2.

[0037] Explanation of reference numerals in the attached figures:

[0038] 1000. Stroller; 100. Frame; 101. Load-bearing space; 110. Folding mechanism; 111. First connecting rod; 112. Second connecting rod; 113. Second sliding member; 1131. Second limiting recess; 1132. Second pushing part; 11321. Second driving ramp; 114. Locking member; 1141. Connecting part; 1142. Locking protrusion; 1143. Release protrusion; 115. Top pivot seat; 116. Bottom pivot seat; 117. Third sliding member; 118. Second elastic element; 120, base frame; 121, side base bar; 122, transverse base bar; 123, wheel seat; 130, enclosure frame; 131, side enclosure bar; 132, transverse enclosure bar; 140, seat fabric; 150, reinforcing frame; 151, side reinforcing bar; 152, transverse reinforcing bar; 160, canopy assembly; 161, canopy rod; 162, canopy seat fabric; 200, conversion drive mechanism; 210, grip assembly; 211, push-pull component; 2111, push-pull rod; 2112, grip rod; 2 12. Support component; 2121. Support rod; 2122. Connecting crossbar; 220. First sliding component; 221. First limiting recess; 222. First pushing part; 2221. First driving inclined surface; 230. Locking component; 240. Lock release assembly; 241. Lock release operation component; 2411. Pedal; 24111. Guide part; 2412. Drive block; 24121. Guide part; 242. Drive seat; 2421. Second guide hole; 243. Traction component; 244. Guide post; 245. 1. First elastic element; 300. Fixed seat; 310. Moving channel; 311. First guide hole; 320. Accommodating cavity; 400. Wheel assembly; 410. Front wheel; 420. Rear wheel; 500. Shock absorption mechanism; 510. Shock absorption seat; 511. Cavity; 512. Abutting part; 513. Movable perforation; 520. Base; 530. Buffer element; F1. First direction; F2. Second direction; F3. Third direction; Q1. First pivot point; Q2. Second pivot point; Q3. Third pivot point. Detailed Implementation

[0039] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0040] Figure 1 A view of a stroller 1000 provided according to an embodiment of the present invention is shown, wherein the conversion drive mechanism 200 is in a first use mode; Figure 2 for Figure 1The perspective view of the stroller 1000 shown is omitted when the side panel seat fabric 140 and the canopy seat fabric 162 are not shown. In this view, the folding mechanism 110 is in the extended state and the frame 100 is in the unfolded state. Figure 3 The side view of the stroller 1000 shows the conversion drive mechanism 200 in a first transition mode between a first usage mode and a second usage mode. Figure 4 A perspective view of a children's stroller 1000, wherein the conversion drive mechanism 200 is in a second transition mode between a first usage mode and a second usage mode; Figure 5 This is a side view of the stroller 1000, showing the conversion drive mechanism 200 in its second usage mode. (Combined) Figures 1 to 5 The stroller 1000 includes a frame 100 and a conversion drive mechanism 200. The frame 100 is provided with a folding mechanism 110 for easy folding; in other words, the frame 100 has a folding mechanism 110, through which the frame 100 can fold itself, allowing it to be folded in its unfolded state (see...). Figure 2 ) and folded status (see Figure 14 Switching between the first and second usage modes. Specifically, the folding principle and process of the frame 100 will be explained later and will not be detailed here. The conversion drive mechanism 200 is movably connected to the frame 100 and can switch between the first usage mode (see...). Figure 1 and Figure 2 ) and second usage mode (see Figure 5 The conversion drive mechanism 200 can be driven and cooperated with the folding mechanism 110. In the first use mode, when the conversion drive mechanism 200 is moving relative to the frame 100, the conversion drive mechanism 200 can release the folding mechanism 110 to allow the frame 100 to fold.

[0041] In the aforementioned design of the stroller 1000, the conversion drive mechanism 200 is movably connected to the frame 100 and can switch between a first usage mode and a second usage mode. This allows users to adjust the usage mode of the conversion drive mechanism 200 according to their individual needs, thereby improving the flexibility and convenience of using the stroller 1000. Furthermore, the frame 100 is equipped with a folding mechanism 110 to allow the frame 100 to unfold or fold, making the storage and carrying of the stroller 1000 more convenient. It is worth noting that the aforementioned conversion drive mechanism 200 can cooperate with the folding mechanism 110, and in the first usage mode, when the conversion drive mechanism 200 moves relative to the frame 100, it can release the folding mechanism 110, thus allowing the frame 100 to fold. Therefore, the design of the aforementioned conversion drive mechanism 200 can be considered to have a dual effect: both changing the usage mode and adjusting the state of the stroller 1000 can be achieved through the conversion drive mechanism 200. This design not only simplifies the structure of the Stroller 1000, but also improves the ease of operation, allowing the Stroller 1000 to quickly switch between different usage modes and states.

[0042] It should be noted that the applicable objects of the children's stroller 1000 provided by this utility model include, but are not limited to, children, pets, or goods. The following description of the stroller 1000 will also include a description of the frame 100 and the conversion drive mechanism 200, among other components.

[0043] Combination Figure 2 , Figure 6 and Figure 7 In one embodiment, the switching drive mechanism 200 includes a grip assembly 210 and a first slider 220. The grip assembly 210 is movably connected to the frame 100 and can switch between a first usage mode and a second usage mode. The first slider 220 is slidably disposed on the frame 100 and pivotally connected to the grip assembly 210. The first slider 220 is movable relative to the frame 100 between a first position and a second position to allow the grip assembly 210 to switch between the first and second usage modes. In other words, when the first slider 220 is in the first position, the grip assembly 210 is in the first usage mode; when the first slider 220 is in the second position, the grip assembly 210 is in the second usage mode.

[0044] In one embodiment, the conversion drive mechanism 200 further includes a locking member 230. This locking member 230 is movably disposed within the frame 100 and has a locked position and an unlocked position. Figure 6As shown, the position of the locking member 230 roughly coincides with the first position of the first sliding member 220 on the frame 100. Therefore, when the locking member 230 is in the locked position, the locking member 230 can lock into the first sliding member 220 to lock the first sliding member 220 in the first position, thereby restricting the grip assembly 210 to the first usage mode. Figure 7 As shown, when the locking member 230 is in the unlocked position, the locking member 230 can disengage from the first sliding member 220. In other words, the locking member 230 can release the locking of the first sliding member 220, thus allowing the first sliding member 220 to move freely on the frame 100. For example, it allows the first sliding member 220 to move from a first position to a second position, thereby allowing the grip assembly 210 to switch from a first usage mode to a second usage mode (e.g., from a first position to a second position). Figure 7 Towards Figure 8 (Switching). Alternatively, the first slider 220 can be allowed to move from the first position to the third position to drive the folding mechanism 100 to release, thereby allowing the frame 100 to fold (see below for details).

[0045] Please see Figure 1 and Figure 2 In one embodiment, the grip assembly 210 includes a push-pull member 211 and a support member 212. The bottom of the push-pull member 211 is pivotally connected to the frame 100 to form a first pivot point Q1. The support member 212 is pivotally connected between the push-pull member 211 and a first sliding member 220, and the support member 212 is pivotally connected to the push-pull member 211 at a second pivot point Q2, and to the first sliding member 220 at a third pivot point Q3. The first pivot point Q1, the second pivot point Q2, and the third pivot point Q3 together form the three vertices of a triangle. Since the first sliding member 220 can slide on the frame 100, the members constituting the three pivot points generally form a variable triangular structure. Specifically, in this embodiment, as... Figure 1 and Figure 5 As shown, when the first slider 220 moves between the first position and the second position, it can directly or indirectly drive the support 212 and the push-pull member 211 to pivot, thereby enabling the grip assembly 210 to switch between the first and second usage modes. From another perspective, when the push-pull member 211 is rotated, it can drive the first slider 220 to move between the first and second positions via the support 212, thus achieving the switching of the grip assembly 210 between different usage modes.

[0046] Combination Figure 1 and Figure 5In this embodiment, when the grip assembly 210 is in the first usage mode, the first slider 220 is in the first position. When the grip assembly 210 is in the second usage mode, the first slider 220 is in the second position. Alternatively, it can be viewed that when the first slider 220 is in the first position, the grip assembly 210 is in the first usage mode. When the first slider 220 is in the second position, the grip assembly 210 is in the second usage mode.

[0047] See Figure 1 and Figure 2 In one embodiment, the frame 100 further includes a base frame 120 and a surrounding frame 130. A folding mechanism 110 is movably connected between the base frame 120 and the surrounding frame 130, and the folding mechanism 110 can be in a folded state (see...). Figure 14 ) and extended state (see Figure 2 Switch between ( ). For example, Figure 2 As shown, when the folding mechanism 110 is in the extended state, a carrying space 101 is formed between the frame 130, the folding mechanism 110, and the base frame 120. At this time, the entire vehicle frame 100 can be considered to be in an unfolded state. It should be noted that the carrying space 101 can accommodate, but is not limited to, children, pets, or goods. Figure 14 As shown, when the folding mechanism 110 is in the folded state, the frame 130 and the base frame 120 are close to each other, and the entire frame 100 can be considered to be in the folded state. Specifically, when the stroller 1000 is placed on the ground, the frame 130 is located above the base frame 120 in the vertical direction (which can be considered as the height direction). During the extension or folding process of the folding mechanism 110, the frame 130 and the base frame 120 can be considered to move away from or closer to each other in the vertical direction.

[0048] See also Figure 1 and Figure 2In one embodiment, the base frame 120 can be a ring-shaped structure, for example, the base frame 120 can be rectangular. The base frame 120 includes side base rods 121 located on the left and right sides and two transverse base rods 122 connecting the two side base rods 121. The side base rods 121 extend approximately along a first direction F1, and the transverse base rods 122 extend approximately along a second direction F2, with the first direction F1 and the second direction F2 being approximately perpendicular. The first direction F1 can be considered as the front-rear direction of the stroller 1000, and the second direction F2 can be considered as the left-right direction of the stroller 1000. Specifically, in this embodiment, the two transverse base rods 122 are located at both ends of the side base rods 121. Of course, in other embodiments, the two transverse base rods 122 can also be located in areas other than the ends of the side base rods 121, such as near the middle of the side base rods 121, and are not specifically limited here. In one embodiment, the side base rod 121 and the transverse base rod 122 can be fixedly connected, for example, by welding or integral molding; or they can be detachably connected by snap-fit ​​or threaded connection. Of course, in another alternative embodiment, the base frame 120 can also have other implementations, such as omitting part of the transverse base rod 122 (e.g., there is only one transverse base rod 122); or there can be two or more transverse base rods 122; or the base frame 120 can also have other shapes, which are not specifically limited here.

[0049] Specifically, in this embodiment, the bottom of the push-pull member 211 is pivotally connected to the base frame 120 to form the first pivot point Q1 mentioned above. The first sliding member 220 is slidably disposed on the side bottom rod 121 and can slide back and forth along the length direction of the side bottom rod 121 to switch between the first position and the second position.

[0050] It should be noted that, unless otherwise explicitly specified and limited, the directional terms such as "left," "right," "front," and "rear" related to the stroller 1000 in various embodiments of this utility model are based on the "left," "right," "front," and "rear" positions of the stroller 1000 in normal driving. Furthermore, "left" and "right" are schematically indicated by arrows L and R, and "front" and "rear" are schematically indicated by arrows P and B in the figures. These directional terms are only used to make the description of the embodiments of this utility model clearer and are not intended to unduly limit the scope of protection of this utility model.

[0051] Specifically, considering the orientation of the stroller 1000, in this embodiment, the second position is located in front of the first position along the travel direction of the stroller 1000. When the grip assembly 210 is in the first usage mode, the top of the push-pull member 211 is located on the first side of the frame 100 (see...). Figure 1 and Figure 2 When the grip assembly 210 is in the second usage mode, the top of the push-pull member 211 is located on the second side of the frame 100 (see...). Figure 5The second side is positioned opposite the first side relative to the travel direction of the frame 100. In other words, the first and second sides of the frame 100 are positioned opposite each other along the front-rear direction of the stroller 1000 (i.e., the first direction F1). When considering the travel direction of the stroller 1000, the first side of the frame 100 can be considered as the rear side of the stroller 1000, and the second side of the frame 100 can be considered as the front side of the stroller 1000. Therefore, when the handlebar assembly 210 is in the first usage mode, the stroller 1000 can be considered as being in a pusher mode, so that the user can stand on the rear side of the stroller 1000 and push the top of the push-pull member 211 to move the stroller 1000 forward. When the handlebar assembly 210 is in the second usage mode, the stroller 1000 can be considered as being in a trailer mode, so that the user can stand on the front side of the stroller 1000 and pull the top of the push-pull member 211 to move the stroller 1000 forward. Specifically, users can select the usage mode of the grip assembly 210 according to the actual situation to facilitate moving the stroller 1000.

[0052] Combination Figure 2 , Figures 6 to 8 In one embodiment, the first sliding member 220 is a sleeve structure, which is slidably sleeved on the side bottom rod 121 of the base frame 120 and has a first limiting recess 221. The first limiting recess 221 can be a hole structure or a groove structure, so that the locking member 230 can be inserted for locking. Specifically, a fixing seat 300 is provided inside the frame 100, which is fixedly installed inside the side bottom rod 121 of the base frame 120. The locking member 230 is slidably disposed on the fixing seat 300 so that it can move between the locked position and the unlocked position. When the locking member 230 is in the locked position, the locking member 230 will pass through the frame 100 (specifically the side bottom rod 121 of the base frame 120) and extend into the first limiting recess 221, so that the first sliding member 220 is locked in the first position. When the locking member 230 is in the unlocked position, the locking member 230 will retract from the first limiting recess 221, the restriction of the first sliding member 220 will be released, and it can slide freely on the base frame 120 (specifically the side bottom rod 121 of the base frame 120).

[0053] Specifically, in this embodiment, such as Figure 2 As shown, the conversion drive mechanism 200 includes two first sliding members 220, which are slidably sleeved on the left and right side base rods 121 respectively. More specifically, each side base rod 121 is provided with a fixed seat 300 and a locking member 230. The locking member 230 can slide relative to the corresponding fixed seat 300 to switch between a locked position and an unlocked position. In this way, the stability and reliability of the grip assembly 210 in the first use mode can be improved.

[0054] See Figure 2In one embodiment, the push-pull component 211 includes push-pull rods 2111 located on the left and right sides and a gripping rod 2112 connected between the two push-pull rods 2111. The two push-pull rods 2111 are respectively connected to the left and right sides of the base frame 120. This improves the stability of the gripping rod assembly 210 pivotally connected to the frame 100. The gripping rod 2112 has a U-shaped structure, with its two ends connected to the two push-pull rods 2111 respectively. In this embodiment, the push-pull rod 2111 can be a telescopic rod structure, allowing adjustment of the overall length of the push-pull component 211 to accommodate users of different heights; simultaneously, when folding the stroller 1000, the length of the push-pull component 211 can be shortened to reduce the volume of the stroller 1000 for storage or transport. Of course, in other embodiments, the push-pull rod 2111 can also be a bent rod structure, etc., and no specific limitations are made here.

[0055] See also Figure 2 In this embodiment, the support member 212 also includes support rods 2121 located on the left and right sides and a connecting crossbar 2122 connecting the two support rods 2121, so that the support member 212 as a whole has a U-shaped structure. The support rods 2121 are pivotally connected between the push-pull rod 2111 and the first sliding member 220 on the same side. Of course, in other embodiments, the connecting crossbar 2122 can be omitted, so that the left and right sides of the support member 212 will form a non-U-shaped independent support form.

[0056] To facilitate user control of the position of the locking member 230, in one embodiment, the conversion drive mechanism 200 further includes a release assembly 240. The release assembly 240 is movably mounted on the frame 100 and operably connected to the locking member 230 to allow the locking member 230 to move between a locked position and an unlocked position. Specifically, in conjunction with... Figure 2 , Figure 6 , Figures 9 to 11 The release assembly 240 includes a release operation member 241, a drive seat 242, and a traction member 243. The release operation member 241 is movably mounted on the frame 100 for user operation. The drive seat 242 is slidably mounted on the fixed seat 300 and is drivably connected to the locking member 230. The traction member 243 connects the drive seat 242 and the release operation member 241. When the release operation member 241 is operated, it drives the drive seat 242 to move via the traction member 243, causing the locking member 230 to move from the locked position to the unlocked position.

[0057] See Figures 6 to 10In this embodiment, the drive seat 242 is driven to connect with the locking member 230 via the guide post 244. Specifically, the fixed seat 300 is provided with a moving channel 310 extending along a third direction F3, and the wall of the moving channel 310 is provided with a first guide hole 311 extending along its axial direction. The drive seat 242 is slidably disposed on the fixed seat 300 along a first direction F1, and the drive seat 242 is provided with a second guide hole 2421. The second guide hole 2421 extends obliquely relative to the first direction F1 and the third direction F3, and the first direction F1 and the third direction F3 intersect. Specifically, the third direction F3 can be regarded as the height direction of the stroller 1000. More specifically, the locking member 230 is disposed in the moving channel 310, and the guide post 244 passes through the second guide hole 2421 and the first guide hole 311 and is connected to the locking member 230. Therefore, when the drive seat 242 moves along the first direction F1, the guide post 244 will slide and engage with the first guide hole 311 and the second guide hole 2421, so that the locking member 230 switches between the locked position and the unlocked position along the third direction F3 within the moving channel 310. It should be noted that in other alternative embodiments, the drive seat 242 can be omitted, and the traction member 243 is directly connected between the release operation member 241 and the locking member 230. Alternatively, both the drive seat 242 and the traction member 243 can be omitted, and the release operation member 241 is directly connected to the locking member 230.

[0058] See Figures 9 to 12 In this embodiment, the release mechanism 241 includes a pedal 2411 and a drive block 2412. The pedal 2411 is rotatably mounted on the base frame 120, and an inclined guide portion 24111 is provided inside the pedal 2411. The drive block 2412 has a guide portion 24121 that matches the guide portion 24111, and the drive block 2412 is slidably disposed on the guide portion 24111 via the guide portion 24121. A traction member 243 connects the drive block 2412 and the drive seat 242. Specifically, the guide portion 24111 has a convex structure, the guide portion 24121 has a recessed structure, and the drive block 2412 is mounted outside the guide portion 24111 via the recessed structure. Alternatively, the guide portion 24111 has a recessed structure, the guide portion 24121 has a convex structure, and the drive block 2412 is inserted into the guide portion 24111 via the convex structure. When the pedal 2411 rotates around the base frame 120, the guide part 24111 rotates accordingly. The convex structure and the groove wall of the groove structure abut against each other to drive the drive block 2412 to move along the length direction of the side bottom rod 121 or the transverse bottom rod 122 of the base frame 120, thereby driving the traction member 243 to move to pull the drive seat 242 to move.

[0059] See Figure 10In one embodiment, the release assembly 240 further includes a first elastic element 245. The first elastic element 245 may be a spring located between the fixed seat 300 and the drive seat 242 along a first direction F1 and used to reset the drive seat 242, thereby allowing the locking member 230 to remain in the locked position.

[0060] The working principle of the conversion drive mechanism 200 will be briefly explained below with reference to the diagram.

[0061] See Figure 1 and Figure 6 In one embodiment, when the grip assembly 210 is in the first usage mode, the stroller 1000 can be considered to be in pushcart mode. At this time, the first slider 220 is in the first position, and the locking member 230 is in the locked position. The locking member 230 passes through the side bottom rod 121 and extends into the first limiting recess 221 of the first slider 220 to lock the first slider 220. This allows the grip assembly 210 to be stably maintained in the first usage mode.

[0062] Combination Figure 2 , Figures 9 to 11 When the user needs to adjust the grip assembly 210 from the first usage mode to the second usage mode, the user can directly press the pedal 2411. The pedal 2411 rotates to drive the internal drive block 2412 to move. At the same time, the drive block 2412 will pull the drive seat 242 to move via the traction member 243. Under the guidance of the first guide hole 311 and the second guide hole 2421, the guide post 244 drives the locking member 230 to move upward and retract from the first limiting recess 221. In other words, the guide post 244 will drive the locking member 230 to switch to the unlocked position (from...). Figure 6 Towards Figure 7 (Switch). The user can then hold the push-pull member 211 and push it forward. Under the force, the push-pull rod 2111 rotates counterclockwise around the first pivot point Q1, and the support member 212 rotates clockwise around the second pivot point Q2 and simultaneously around the third pivot point Q3. During this process, the support member 212 will cause the first sliding member 220 to gradually move towards the second position (from...). Figure 1 sequentially to Figure 3 , Figure 4 as well as Figure 5 (Switch). When the grip assembly 210 is in the second usage mode, the first slider 220 is in the second position.

[0063] It should be noted that when the first sliding member 220 leaves the first position, the drive seat 242 can be reset under the reset force of the first elastic member 245. Under the guidance of the first guide hole 311 and the second guide hole 2421, the guide post 244 drives the locking member 230 to move down and pass through the side bottom rod 121 again and protrude from the tube wall of the side bottom rod 121.

[0064] When the user needs to adjust the grip assembly 210 from the second usage mode to the first usage mode, the user can grasp the push-pull member 211 and push it backward. Under the action of the pushing force, the push-pull member 211 can rotate clockwise around the first pivot point Q1, and the support member 212 will rotate counterclockwise around the second pivot point Q2 and simultaneously around the third pivot point Q3. During this process, the support member 212 will drive the first sliding member 220 to gradually move towards the first position (from...). Figure 5 sequentially to Figure 4 , Figure 3 as well as Figure 1 (Switching). When the first slider 220 moves close to the first position, the user can press the pedal 2411 to switch the locking member 230 from the locked position to the unlocked position again. When the locking member 230 is in the unlocked position, the first slider 220 can move smoothly to the first position. When the first slider 220 is in the first position, the pedal 2411 is released to allow the locking member 230 to move from the unlocked position to the locked position, thereby fixing the first slider 220 in the first position, and ultimately keeping the grip assembly 210 stably in the first usage mode.

[0065] It should be noted that in this embodiment, when the first slider 220 moves from the second position to the first position, it does not need to be released. In other words, in this embodiment, the first slider 220 is not locked when it is in the second position. Of course, in other embodiments, the stroller 1000 may also be equipped with another locking mechanism (not shown in the figure), which can be used to lock the first slider 220 in the second position.

[0066] As described above, when the folding mechanism 110 switches between the extended and folded states, it can cause the frame 130 and the base frame 120 to move away from and closer to each other, so that the frame 100 as a whole switches between the extended and folded states. Therefore, the user can control the state of the frame 100 by controlling the state of the folding mechanism 110.

[0067] See Figure 1 and Figure 2In one embodiment, the folding mechanism 110 includes a second sliding member 113, a first connecting rod 111, and a second connecting rod 112. The second sliding member 113 is slidably mounted on the base frame 120 (specifically, the side base rod 121). The first connecting rod 111 and the second connecting rod 112 are pivotally connected to each other, with one end of the first connecting rod 111 pivotally and slidably connected to either the frame 130 or the base frame 120, and the other end of the first connecting rod 111 pivotally connected to either the base frame 120 or the frame 130. In other words, when one end of the first connecting rod 111 is pivotally and slidably connected to either the frame 130 or the base frame 120, the other end of the first connecting rod 111 is pivotally connected to the other. One end of the second connecting rod 112 is pivotally connected to the frame 130 or the base frame 120, and the other end of the second connecting rod 112 is pivotally connected to the second sliding member 113.

[0068] See Figure 7 and Figure 8 In one embodiment, the folding mechanism 110 further includes a locking member 114. The locking member 114 is movably disposed within the base frame 120 and is switchable between a locked position and an unlocked position. When the locking member 114 is in the locked position (see...), Figure 7 The locking member 114 can lock into the second sliding member 113, thereby restricting the relative pivoting of the first connecting rod 111 and the second connecting rod 112, and thus restricting the folding of the frame 100. When the locking member 114 is in the unlocked position (see...), Figure 16 The locking member 114 can disengage from the second sliding member 113. In other words, the locking member 114 releases the locking of the second sliding member 113, thus allowing the first connecting rod 111 and the second connecting rod 112 to pivot relative to each other, thereby allowing the frame 100 to fold.

[0069] It should be noted that, in this embodiment, as Figure 1 and Figure 2 As shown, when the first connecting rod 111 and the second connecting rod 112 pivot relative to each other to unfold in an "X" shape, the folding mechanism 110 can be considered to be in an extended state, and the frame 130 and the base frame 120 are separated from each other. Figure 14 As shown, when the first connecting rod 111 and the second connecting rod 112 pivot to converge, so that the included angle between them approaches 0 degrees, the folding mechanism 110 can be regarded as being in a folded state, and the frame 130 and the base frame 120 move closer to each other.

[0070] See Figure 2In one embodiment, the frame 130 may also be a ring-shaped structure. In this embodiment, the frame 130 is adapted to the base frame 120 and is rectangular, including side rails 131 located on the left and right sides and two transverse rails 132 connecting the two side rails 131. The side rails 131 extend generally along a first direction F1, and the transverse rails 132 extend generally along a second direction F2, with the two transverse rails 132 located at both ends of the side rails 131. It should be noted that in other embodiments, the two transverse rails 132 may be located in areas outside the ends of the side rails 131. Similarly, in this embodiment, the connection method between the side rails 131 and the transverse rails 132 can refer to the connection method between the side bottom rails 121 and the transverse bottom rails 122 described above, and will not be repeated here.

[0071] Please continue reading Figure 2 In this embodiment, specifically, one end of the first connecting rod 111 is pivotally and slidably connected to the side rail 131 of the frame 130, and the other end of the first connecting rod 111 is pivotally connected to the side bottom rail 121 of the base frame 120. One end of the second connecting rod 112 is pivotally connected to the side rail 131 of the frame 130, and the other end of the second connecting rod 112 is pivotally connected to the second sliding member 113 located on the side bottom rail 121 of the base frame 120. It should be noted that one end of the first connecting rod 111 can be directly pivotally and slidably connected to the side rail 131, and the other end can be directly pivotally connected to the side bottom rail 121. Of course, one end of the first connecting rod 111 can also be indirectly pivotally and slidably connected to the side rail 131, and the other end can also be indirectly pivotally connected to the side bottom rail 121. Similarly, the second connecting rod 112 can be directly or indirectly pivotally connected to the side rail 131.

[0072] See you again Figure 2 In one embodiment, the folding mechanism 110 further includes a top pivot seat 115, a bottom pivot seat 116, and a third sliding member 117. The top pivot seat 115 is fixedly mounted on the side rail 131 of the frame 130, and the third sliding member 117 is slidably mounted on the side rail 131 of the frame 130. The bottom pivot seat 116 is fixedly mounted on the side bottom rail 121 of the base frame 120. A first connecting rod 111 is pivotally connected between the third sliding member 117 and the bottom pivot seat 116, and a second connecting rod 112 is pivotally connected between the second sliding member 113 and the top pivot seat 115. Thus, one end of the first connecting rod 111 is pivotally and slidably connected to the frame 130 via the third sliding member 117, and the other end of the first connecting rod 111 is pivotally connected to the base frame 120 via the bottom pivot seat 116. One end of the second connecting rod 112 is pivotally connected to the frame 130 via the top pivot seat 115. Of course, in other embodiments, both the top pivot 115 and the bottom pivot 116 may be omitted.

[0073] See Figure 1 and Figure 2 When the folding mechanism 110 is in the extended state, the first connecting rod 111 and the second connecting rod 112 pivot relative to each other to unfold in an "X" shape. At this time, the position of the second sliding member 113 on the base frame 120 is referred to as the unfolded position. See also... Figure 14 When the folding mechanism 110 is in the folded state, the first connecting rod 111 and the second connecting rod 112 pivot relative to each other to converge, so that the included angle between them approaches 0 degrees. At this time, the position of the second sliding member 113 on the base frame 120 is called the folded position. Figure 2 , Figure 13 as well as Figure 14 When the second slider 113 reciprocates between the folded and unfolded positions on the base frame 120, the folding mechanism 110 can be considered to be repeatedly switching between the folded and unfolded states. Correspondingly, the frame 100 repeatedly switches between the folded and unfolded states. Therefore, when the user needs to change the state of the frame 100, they can directly change the position of the second slider 113. It should be noted that... Figure 13 The folding mechanism 110 in the stroller 1000 shown is in a transitional state between an extended state and a folded state, and the frame 100 is correspondingly in a transitional state between an unfolded state and a folded state.

[0074] It should be noted that the position of the locking member 114 on the base frame 120 roughly coincides with the unfolded position of the second sliding member 113 on the base frame 120. Therefore, when the locking member 114 is in the locked position (see...), Figure 6 , Figure 7 and Figure 15 The locking member 114 can lock into the second sliding member 113. This restricts the second sliding member 113 to the unfolded position, thereby preventing the folding mechanism 110 from switching from the extended state to the folded state, and ultimately restricting the folding of the frame 100. When the locking member 114 is in the unlocked position (see...), Figure 16 The locking element 114 can disengage from the second sliding element 113 (see below for details). This allows the second sliding element 113 to move to the folded position, and the folding mechanism 110 can switch from the extended state to the folded state, ultimately folding the frame 100. Therefore, the user can control whether the frame 100 folds by changing the position of the locking element 114. Specifically, the locking element 114 is located on the side bottom rod 121 of the base frame 120, thus facilitating its locking engagement with the second sliding element 113.

[0075] In one embodiment, a guide groove (not shown in the figure) is provided on the side rail 131, which extends along the length direction of the side rail 131, and a third sliding member 117 is slidably disposed within the guide groove; or, the third sliding member 117 is a sleeve structure, which is sleeved on the outside of the side rail 131 and can slide along the length direction of the side rail 131. Figure 2 As shown, the second sliding member 113 can be, for example, a sleeve structure, which is sleeved on the side bottom rod 121 and can slide along the length direction of the side bottom rod 121 so that it has the above-mentioned unfolded position and folded position on the side bottom rod 121.

[0076] Please combine Figure 6 , Figure 7 as well as Figure 17 In one embodiment, the locking member 114 includes a locking protrusion 1142, which is movable relative to the fixed base 300 to switch between a locked position and an unlocked position. Specifically, the second sliding member 113 is provided with a second limiting recess 1131, which can be a hole structure or a groove structure, etc. When the locking protrusion 1142 is in the locked position, the locking protrusion 1142 passes through the base frame 120 and extends into the second limiting recess 1131 to lock and engage with the second sliding member 113, thereby restricting the movement of the second sliding member 113 (see...). Figure 6 , Figure 7 and Figure 17 When the locking protrusion 1142 is in the unlocked position, the locking protrusion 1142 retracts from the second limiting recess 1131 to disengage from the second sliding member 113, thereby allowing the second sliding member 113 to move (see...). Figure 16 ).

[0077] Please continue to combine Figure 6 , Figure 7 as well as Figure 17 In one embodiment, the locking member 114 further includes a connecting portion 1141 and a release protrusion 1143. The connecting portion 1141 connects the release protrusion 1143 and the locking protrusion 1142, so that when either the release protrusion 1143 or the locking protrusion 1142 moves, the other can be moved via the connecting portion 1141. Specifically, the first sliding member 220 is also movable relative to the base frame 120 (specifically, the side base rod 121) between a first position and a third position. The first sliding member 220 has a first pushing portion 222. When the first sliding member 220 moves from the first position to the third position, the first pushing portion 222 is adapted to push the release protrusion 1143 to move, thereby causing the locking protrusion 1142 to switch from the locked position to the unlocked position via the connecting portion 1141.

[0078] Specifically, please combine Figure 6 , Figure 7 , Figure 9 as well as Figure 10 In one embodiment, the connecting portion 1141 may be a spring-loaded structure, and the unlocking protrusion 1143 and the locking protrusion 1142 may be considered as protrusions protruding outward from the surface of the spring-loaded structure. The spring-loaded structure is housed inside the side base rod 121 of the base frame 120. The first end of the spring-loaded structure abuts against the fixed seat 300, and the second end of the spring-loaded structure is suspended, with the locking protrusion 1142 located at the second end of the spring-loaded structure. Thus, the first end of the spring-loaded structure can be considered as a fixed end, and the second end of the spring-loaded structure can be considered as a free end, which can swing relative to the fixed end. Therefore, when the locking protrusion 1142 is located at the second end of the spring-loaded structure, the locking protrusion 1142 can move relative to the fixed seat 300 to switch between the locked position and the unlocked position through the bending deformation of the spring-loaded structure.

[0079] Specifically, in this embodiment, the unfolded position of the second slider 113 on the base frame 120 roughly coincides with the position of the locking protrusion 1142 on the base frame 120. Thus, when the locking protrusion 1142 is in the locked position, it can lock the second slider 113 in the unfolded position, thereby keeping the folding mechanism 110 in the extended state. When the locking protrusion 1142 retracts from the second limiting recess 1131, the second slider 113 is no longer constrained and can move towards the folded position on the side bottom rod 121, allowing the folding mechanism 110 to gradually switch to the folded state.

[0080] See Figure 6 and Figure 10 In this embodiment, the first end of the spring structure is fixedly connected to the fixed base 300 by a screw or bolt or other connecting member. The tube wall of the side bottom rod 121 is provided with a first through hole (not shown in the figure). When the spring structure is in its natural state (i.e., not deformed), the locking protrusion 1142 is in the locked position. At this time, the locking protrusion 1142 passes through the first through hole and protrudes from the tube wall of the side bottom rod 121. The protruding locking protrusion 1142 can extend into the second limiting recess 1131 of the second slider 113 to restrict the movement of the second slider 113.

[0081] Specifically, in this embodiment, such as Figure 9 As shown, the release protrusion 1143 and the locking protrusion 1142 are located on the same side of the spring structure, and the release protrusion 1143 is located between the first end and the second end of the spring structure. A second through hole (not shown) is also provided on the side bottom rod 121. Figure 6 and Figure 7As shown, when the spring structure is in its natural state, the release protrusion 1143 passes through the second through hole and protrudes from the tube wall of the side bottom rod 121. When the first slider 220 moves from the first position to the third position, the first pushing part 222 of the first slider 220 abuts against the release protrusion 1143 to push the release protrusion 1143 to move. During the process of the release protrusion 1143 moving to exit the second through hole, the release protrusion 1143 will cause the spring structure to bend and deform. This deformation will cause the locking protrusion 1142 to move to switch from the locked position to the unlocked position (see...). Figure 15 and Figure 16 Therefore, the first slider 220 described above can also serve as an unlocking mechanism, which can be used to indirectly drive the locking protrusion 1142 to switch from the locked position to the unlocked position.

[0082] See Figure 15 and Figure 16 In one embodiment, at least one of the first pushing portion 222 and the releasing protrusion 1143 is provided with a first driving ramp 2221. For example, in this embodiment, the first pushing portion 222 has a first driving ramp 2221. Therefore, when the first sliding member 220 moves horizontally along the first direction F1 on the side bottom rod 121, the first driving ramp 2221 can push the releasing protrusion 1143 and cause the releasing protrusion 1143 to move upward in the vertical direction to retract into the side bottom rod 121. During the upward movement of the releasing protrusion 1143, it will drive the spring structure to bend upward to deform, which will cause the second end of the spring structure to have an upward tendency, and finally drive the locking protrusion 1142 to retract from the second limiting recess 1131. This can be regarded as driving the locking protrusion 1142 to switch from the locked position to the unlocked position, so as to release the locking engagement between the locking protrusion 1142 and the second sliding member 113.

[0083] Of course, in another embodiment, such as Figure 17 and Figure 18 As shown, the connecting part 1141, the unlocking protrusion 1143, and the locking protrusion 1142 can all be pin structures. Specifically, the connecting part 1141 connects between the locking protrusion 1142 and the unlocking protrusion 1143. The fixing base 300 is provided with a receiving cavity 320, and the connecting part 1141, the locking protrusion 1142, and the unlocking protrusion 1143 are all movably disposed within the receiving cavity 320. When the locking protrusion 1142 is in the locked position, at least a portion of the locking protrusion 1142 passes through the first through hole to protrude from the tube wall of the side bottom rod 121, and at least a portion of the unlocking protrusion 1143 passes through the second through hole to protrude from the tube wall of the side bottom rod 121. When the first pushing part 222 of the first sliding member 220 pushes against the release protrusion 1143, causing the release protrusion 1143 to move upward, the release protrusion 1143 then drives the locking protrusion 1142 to move upward synchronously through the connecting part 1141. This makes the release effect of the locking member 114 more stable.

[0084] Please refer to the previous page. Figure 2 In this embodiment, the frame 100 has two folding mechanisms 110, which are located on the left and right sides of the frame 100, respectively. The frame 100 operates simultaneously through the two folding mechanisms 110, thus improving the stability and reliability of the frame 100 when switching between the unfolded and folded states. Specifically, in this embodiment, a second sliding member 113 is sleeved on the outer side of the left and right side bottom rods 121, and a locking member 114 is provided inside the left and right side bottom rods 121, as described above. Each locking member 114 can lock or unlock with the corresponding second sliding member 113. Furthermore, in this embodiment, two first sliding members 220 located on the left and right sides of the frame 100 can correspond to the two locking members 114, respectively, to drive the locking protrusion 1142 of the corresponding locking member 114 to release.

[0085] The following description, in conjunction with relevant illustrations, takes the folding mechanism 110 on one side of the frame 100 as an example, and based on the fact that the connecting part 1141 of the locking member 114 has a spring-loaded structure, briefly explains the working principle and process of the drive cooperation between the conversion drive mechanism 200 and the folding mechanism 110.

[0086] See Figure 6 and Figure 7 In one embodiment, when the folding mechanism 110 is in the extended state, the frame 100 is in the unfolded state, the second sliding member 113 is in the unfolded position on the side bottom rod 121, and the first connecting rod 111 and the second connecting rod 112 are intersected in an "X" shape and unfolded between the frame 130 and the base frame 120. At this time, the spring structure is in the natural state, the locking protrusion 1142 is in the locked position, it passes through the first through hole and extends into the second limiting recess 1131 of the second sliding member 113, and the releasing protrusion 1143 passes through the second through hole to protrude from the tube wall of the side bottom rod 121. It should be noted that in this embodiment, along the length direction of the side bottom rod 121, the unfolded position is located between the first position and the third position.

[0087] Combination Figure 6 , Figure 7 , Figure 15 as well as Figure 16When the user needs to switch the frame 100 from the unfolded state to the folded state, it can be considered as needing to switch the folding mechanism 110 from the extended state to the folded state. First, step on the pedal 2411 to release the first sliding member 220; then, by pressing down on the push-pull member 211, the first sliding member 220 is driven to move, so that the first sliding member 220 gradually moves from the first position to the third position. During the movement of the first sliding member 220, the first pushing part 222 gradually abuts against the release protrusion 1143. Under the action of the first driving inclined surface 2221, the release protrusion 1143, which is subjected to the pushing force, gradually moves upward in a roughly vertical direction to retract into the interior of the side bottom rod 121. Since the release protrusion 1143 is located between the first and second ends of the spring structure, with the first end of the spring structure fixed and the locking protrusion 1142 located at the second end, the release protrusion 1143 will cause the spring structure to bend upwards and deform during its upward movement, thus causing the second end of the spring structure to tend to move upwards. This will cause the locking protrusion 1142 to move upwards and retract from the second limiting recess 1131. Once the locking protrusion 1142 has completely retracted from the second limiting recess 1131, the second sliding member 113 is no longer restricted by the locking protrusion 1142 and can move freely relative to the side bottom rod 121. Thus, the folding mechanism 110 can switch to a folded state, and the frame 100 will subsequently switch to a folded state. It should be noted that when the restriction on the second sliding member 113 is released, the first connecting rod 111 and the second connecting rod 112 can be pivoted and retracted by pressing down the frame 130, thereby pushing the second sliding member 113 to the folding position and thus realizing the folding of the frame 100. Alternatively, the second sliding member 113 can be moved toward the folding position by continuing to press down the push-pull member 211, using the movement of the first sliding member 220 to realize the folding of the frame 100.

[0088] See Figure 6 and Figure 10 In one embodiment, the fixing base 300 has a second elastic element 118, which can be a spring and abuts between the fixing base 300 and the spring structure to provide elastic restoring force to the spring structure so that the locking protrusion 1142 is held in the locked position. Therefore, when the second sliding member 113 leaves the unfolded position, the locking protrusion 1142 will pass through the first through hole and protrude from the tube wall of the side bottom rod 121.

[0089] See Figure 16In one embodiment, the second slider 113 has a second abutting portion 1132 adapted to abut against the locking protrusion 1142. At least one of the second abutting portion 1132 and the locking protrusion 1142 is provided with a second driving ramp 11321. For example, in this embodiment, the second abutting portion 1132 has a second driving ramp 11321, so that when the second slider 113 moves from the folded position to the unfolded position along the first direction F1 on the side bottom rod 121, the second driving ramp 11321 can abut against the locking protrusion 1142 and cause the locking protrusion 1142 to move upward in the vertical direction to retract into the side bottom rod 121, thereby allowing the second slider 113 to move to the unfolded position.

[0090] Continue to combine Figure 6 , Figure 7 , Figure 15 as well as Figure 16 When the user needs to switch the frame 100 from a folded state to an unfolded state, it can be considered as needing to switch the folding mechanism 110 from a folded state to an unfolded state. The second slider 113 is moved to gradually move from the folded position to the unfolded position. When the second slider 113 moves close to the unfolded position, the second drive ramp 11321 can push against the locking protrusion 1142 and cause the locking protrusion 1142 to move vertically upwards to retract into the side bottom rod 121, allowing the second slider 113 to move to the unfolded position. When the second slider 113 moves to the unfolded position, the locking protrusion 1142 is opposite to the second limiting recess 1131, and the spring structure can be reset under the pushing action of the second elastic member 118. Thus, the locking protrusion 1142 will pass through the first through hole and extend into the second limiting recess 1131 to restrict the second slider 113 in the unfolded position. The releasing protrusion 1143 will pass through the second through hole and protrude from the tube wall of the side bottom rod 121 so that it will abut against the first slider 220 again during the next release operation to drive the locking protrusion 1142 to move from the locked position to the released position.

[0091] In one embodiment, the folding mechanism 110 further includes a third elastic element (not shown in the figure). The third elastic element is a torsion spring, one end of which is connected to the first connecting rod 111, and the other end of which is connected to the second connecting rod 112. When the second sliding member 113 moves from the unfolded position to the folded position, the first connecting rod 111 and the second connecting rod 112 pivot relative to each other, and the torsion spring deforms. When the second sliding member 113 moves from the folded position to the unfolded position, the torsion spring can return to its original position to assist the folding mechanism 110 in unfolding.

[0092] In this embodiment, along the front-rear direction of the stroller 1000, the first position is located between the second and third positions. In other words, the direction in which the first slider 220 moves from the first position to the second position is opposite to the direction in which the first slider 220 moves from the first position to the third position. Specifically, the second position is located at the front end of the side bottom rod 121, and the third position is located at the rear end of the side bottom rod 121. When the first slider 220 moves forward from the first position, that is, when the first slider 220 moves from the first position to the second position, the first slider 220 is considered to be able to drive the grip assembly 210 to switch from the first use state to the second use state. When the first slider 220 moves backward from the first position, that is, when the first slider 220 moves from the first position to the third position, the first slider 220 can drive the locking member 114 to release, thereby allowing the folding mechanism 110 to switch from the extended state to the folded state to change the state of the frame 100.

[0093] As described above, the locking member 230 is adapted to lock into the first sliding member 220, thus preventing the first sliding member 220 from arbitrarily switching from the first position to the second or third position. Specifically, when the locking member 230 is disengaged from the first sliding member 220, if the first sliding member 220 moves to the second position (i.e., forward) (from... Figure 6 Towards Figure 8 (Switching), the grip assembly 210 is considered to have switched from the first usage mode to the second usage mode. If the first slider 220 moves to the third position (i.e., considered to be backward) (from Figure 6 Towards Figure 15 (Switching), the folding mechanism 110 switches from the extended state to the folded state. Furthermore, as described above, when the first slider 220 moves from the first position to the second position, the first elastic member 245 can reset the drive seat 242, thereby driving the locking member 230 to reset to the locked position. In this way, the locking member 230 can restrict the first slider 220 from moving to the first position, and also restrict the first slider 220 from moving to the third position. This prevents the folding mechanism 110 from accidentally switching from the extended state to the folded state, improving the reliability of the stroller 1000.

[0094] Please refer to the previous page. Figure 1 and Figure 2In one embodiment, the frame 100 further includes a base plate (not shown) and a seat fabric 140 extending upward from the outer peripheral edge of the base plate. The base plate is disposed on the base frame 120 and can serve as the bottom wall of the support space 101. The end of the seat fabric 140 away from the base plate is connected to the frame 130 to form the side wall of the support space 101. It should be noted that the base plate can be made of rigid or flexible materials, wherein rigid materials include, but are not limited to, plastics, and flexible materials include, but are not limited to, fabrics. The seat fabric 140 can be made of flexible materials. When the folding mechanism 110 switches from an extended state to a folded state, that is, when the frame 100 switches from an unfolded state to a folded state (from... Figure 2 sequentially to Figure 13 as well as Figure 14 (Switching), the frame 130 moves downwards vertically to approach the base frame 120, and the seat fabric 140 folds; when the folding mechanism 110 switches from the folded state to the extended state, that is, when the frame 100 switches from the folded state to the unfolded state (from... Figure 14 sequentially to Figure 13 as well as Figure 2 (Switch), the frame 130 moves vertically away from the base frame 120, and the seat fabric 140 stretches out to form the side wall of the load-bearing space 101.

[0095] Please see Figure 2 In one embodiment, the frame 100 further includes a reinforcing frame 150. This reinforcing frame 150 is connected to the underframe 120 to improve the structural strength of the underframe 120. Specifically, the reinforcing frame 150 includes side reinforcing rods 151 located on the left and right sides, and two transverse reinforcing rods 152 connecting the two side reinforcing rods 151. The side reinforcing rod 151 on the left side is connected to the inner side of the left side bottom rod 121, and the side reinforcing rod 151 on the right side is connected to the inner side of the right side bottom rod 121. It should be noted that in this embodiment, to ensure that the first sliding member 220 and the second sliding member 113 can move smoothly on the side bottom rod 121, a clearance is provided between the side reinforcing rod 151 and the side bottom rod 121 to avoid interference between the first sliding member 220 and the second sliding member 113 and the side reinforcing rod 151 during sliding.

[0096] See Figure 2 , Figure 19 and Figure 20In one embodiment, the stroller 1000 further includes a wheel assembly 400. Specifically, the wheel assembly 400 includes a front wheel 410 and a rear wheel 420, wherein the front wheel 410 is connected to the front end of the base frame 120, and the rear wheel 420 is connected to the rear end of the base frame 120. When the front wheel 410 and / or the rear wheel 420 are omnidirectional wheels, the stroller 1000 can move in various directions via the wheel assembly 400. In one embodiment, the base frame 120 includes at least one wheel seat 123, and at least one wheel seat 123 is mounted on the base frame 120, with the front wheel 410 and / or the rear wheel 420 mounted on each wheel seat 123. Specifically, in this embodiment, a wheel seat 123 is provided on the left and right sides of the front end of the base frame 120, and each wheel seat 123 is connected to a front wheel 410. It should be noted that the pivot connection between the push-pull member 211 and the frame 100 mentioned above specifically refers to the pivot connection between the push-pull rods 2111 located on the left and right sides and the wheel seats 123 on the same side to form the first pivot point Q1. Of course, in other embodiments, it may also refer to the pivot connection between the push-pull rod 2111 and the base frame 120 (such as the end of the front transverse base rod 122, or the front end of the side base rod 121) to form the first pivot point Q1.

[0097] See Figure 19 and Figure 20 In one embodiment, the stroller 1000 further includes a shock-absorbing mechanism 500, which is connected between the frame 100 and the wheel assembly 400. This improves the smoothness of the stroller 1000's movement. Specifically, in this embodiment, the shock-absorbing mechanism 500 is connected between the rear wheel 420 and the base frame 120. Specifically, the shock-absorbing mechanism 500 includes a shock-absorbing seat 510, a base 520, and a buffer member 530. The shock-absorbing seat 510 is connected to the base frame 120 and has a cavity 511. The base 520 is connected to the wheel assembly 400, and a portion of the base 520 extends into the cavity 511 and is retractably connected to the shock-absorbing seat 510. The buffer member 530 is disposed between the shock-absorbing seat 510 and the base 520, and deforms with the relative expansion and contraction between the base 520 and the shock-absorbing seat 510.

[0098] Specifically, in this embodiment, such as Figure 20As shown, the buffer 530 is, for example, a compression spring, and the base 520, buffer 530, and shock absorber 510 are coaxially arranged. Specifically, the inner cavity of the shock absorber 510 has an abutment portion 512, and the top of the shock absorber 510 has a movable through hole 513 communicating with the cavity 511. The end of the base 520 can be movably inserted into the movable through hole 513. The buffer 530 is sleeved on the outside of the base 520, with one end of the buffer 530 abutting against the abutment portion 512 and the other end abutting against the base 520. Through the relative expansion and contraction between the base 520 and the shock absorber 510, the buffer 530 is compressed and deformed, thereby achieving the purpose of shock absorption and ensuring the comfort and safety of children or pets riding in the stroller 1000.

[0099] Please refer to the previous page. Figure 1 In one embodiment, the frame 100 further includes a canopy assembly 160 detachably connected to the frame 130. The canopy assembly 160 covers the carrying space 101, providing a shaded environment for children or pets to rest in. Specifically, the canopy assembly 160 includes a canopy rod 161 and a canopy cover 162. The canopy rod 161 is pivotally connected to the frame 130 to allow it to rotate around the frame 130. The canopy cover 162 is connected between the frame 130 and the canopy rod 161, and the canopy cover 162 can be folded or unfolded as the canopy rod 161 rotates relative to the frame 130.

[0100] In this embodiment, two canopy rods 161 are provided, each U-shaped, with both ends of each rod pivotally connected to either the side rails 131 or the transverse rails 132. Taking the canopy rod 161 pivotally connected between the two side rails 131 as an example, the pivot point between the canopy rod 161 and the side rails 131 can be located in the middle of the side rails 131, or in the area near the front or rear end of the side rails 131. Specifically, in this embodiment, the two canopy rods 161 are pivotally connected to the middle of the side rails 131. Thus, when the two canopy rods 161 pivot to approach each other, both canopy covers 162 in an extended state. At this time, the extended canopy covers can substantially cover the opening of the bearing space 101. When the two canopy rods 161 pivot to move away from each other, both canopy seat fabrics 162 are in a folded state, at which point the opening of the load-bearing space 101 is exposed. It should be noted that the canopy rods 161 can be directly pivotally connected to the frame 130. Of course, in other embodiments, the canopy rods 161 can also be indirectly pivotally connected to the frame 130 via other components.

[0101] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0102] The above embodiments merely illustrate several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A children's stroller, characterized in that, include: The frame is equipped with a folding mechanism; as well as A switching drive mechanism is movably connected to the frame and can switch between a first usage mode and a second usage mode; In the first usage mode, when the conversion drive mechanism is active relative to the frame, the conversion drive mechanism can drive the folding mechanism to release, so as to allow the frame to fold.

2. The stroller according to claim 1, characterized in that, The conversion drive mechanism includes: A grip assembly, movably connected to the frame and capable of switching between a first usage mode and a second usage mode; and A first slider is slidably disposed on the frame and pivotally connected to the grip assembly. The first slider is movable relative to the frame between a first position and a second position to allow the grip assembly to switch between a first usage mode and a second usage mode.

3. The stroller according to claim 2, characterized in that, In the first usage mode, the first slider can move from the first position to the third position to drive the folding mechanism to release, so as to allow the frame to fold.

4. The stroller according to claim 3, characterized in that, The conversion drive mechanism also includes a locking component, which is movably disposed within the frame and has a locked position and an unlocked position; When the locking member is in the locked position, the locking member locks the first sliding member in the first position to restrict the grip assembly to the first usage mode; When the locking member is in the unlocked position, the locking member releases the locking of the first sliding member, and the first sliding member can move from the first position to the second position, so that the grip assembly can switch from the first usage mode to the second usage mode; Alternatively, the vehicle can be moved from the first position to the third position to actuate the folding mechanism to release, thereby allowing the frame to fold.

5. The stroller according to claim 4, characterized in that, The first sliding member is provided with a first limiting recess; The frame is provided with a fixed seat, and the locking member is slidably disposed on the fixed seat so as to be able to move between the locked position and the unlocked position; When the locking member is in the locked position, the locking member passes through the frame and extends into the first limiting recess to lock the first sliding member in the first position; when the locking member is in the unlocked position, the locking member retracts from the first limiting recess to allow the first sliding member to slide.

6. The stroller according to claim 4, characterized in that, The conversion drive mechanism also includes a release assembly movably mounted on the frame and operably connected to the locking member to allow the locking member to move between the locked position and the unlocked position.

7. The stroller according to claim 3, characterized in that, The frame also includes a base frame and a side frame, and the folding mechanism is movably connected between the base frame and the side frame, and can switch between a folded state and an extended state; When the folding mechanism is in the extended state, a load-bearing space is formed between the frame, the folding mechanism, and the base frame; when the folding mechanism is in the folded state, the frame folds down to bring the frame and the base frame closer together.

8. The stroller according to claim 7, characterized in that, The folding mechanism includes: The second sliding member is slidably disposed on the base frame; A first connecting rod, one end of which is pivotally and slidably connected to the enclosure or the base frame, and the other end of which is pivotally connected to the base frame or the enclosure; and The second connecting rod is pivotally connected to the first connecting rod, and both ends of the second connecting rod are pivotally connected to the frame and the second sliding member, respectively.

9. The stroller according to claim 8, characterized in that, The folding mechanism also includes a locking element, which is movably disposed within the base frame and can switch between a locked position and an unlocked position; When the locking member is in the locked position, the locking member can lock and engage with the second sliding member to restrict the folding of the frame; When the locking member is in the unlocked position, the locking member releases the second sliding member, allowing the frame to fold.

10. The stroller according to claim 9, characterized in that, The first slider has a first abutting part. When the first slider moves from the first position to the third position, the first abutting part abuts against the locking member, causing the locking member to switch from the locked position to the unlocked position.

Images