Stroller

Abstract

The utility model provides a child stroller. The child stroller comprises a first stroller frame, a second stroller frame and a third stroller frame. The first frame comprises a first clamping piece, and a first groove is defined by the first clamping piece. The second frame comprises a second clamping piece, and a second groove is defined by the second clamping piece. The third frame includes a locking member. When the stroller is in an unlocking state, the locking piece is separated from the first groove and the second groove; when the stroller is in the first locking state, the first clamping piece and the second clamping piece are located on the two sides of the locking piece respectively in the width direction of the stroller, and the locking piece is located in the first groove and the second groove. According to the stroller, the first groove and the second groove are located in the left side and the right side of the locking piece correspondingly and jointly achieve the double locking effect on the locking piece, the relative positions of the multiple stroller frames can be locked at the same time, and the locking effect is more reliable.

Description

Technical Field

[0001] The present application relates to the technical field of strollers, and in particular to a child stroller. Background Art

[0002] In order to meet the practicality and portability requirements of consumers, children's strollers are generally designed to be foldable. When needed, they can be opened into a stroller form, and when not in use, they can be folded to a smaller size for easy storage or carrying.

[0003] In order to maintain the children's stroller in the open or folded state, a corresponding locking structure is provided. In the related art, since only one pair of locking structures (or one pair on each of the left and right frames) cooperates with each other to achieve the locking effect of the relative motion state between multiple frames, the stability of the locked state is poor. Utility Model Content

[0004] The main purpose of this application is to provide a child stroller that can simultaneously lock the relative positions of multiple frames and make the locking effect more reliable.

[0005] To achieve the above objectives, the embodiments of the present application adopt the following technical solutions:

[0006] A child stroller comprising a first frame, a second frame and a third frame;

[0007] The first frame includes a first clamping member, wherein the first clamping member defines a first slot;

[0008] The second frame includes a second clamping member, wherein the second clamping member defines a second slot;

[0009] a third frame including a locking member;

[0010] The child stroller has a released state and a first locked state. When the child stroller is in the released state, the locking member is disengaged from the first slot and the second slot, so that the third frame can move relative to the first frame and the second frame after obtaining driving force. When the child stroller is in the first locked state, along the width direction of the child stroller, the first clamping member and the second clamping member are respectively located on both sides of the locking member, and the locking member is located in the first slot and the second slot, so that the first clamping member and the second clamping member jointly restrict the movement of the third frame relative to the first frame and the second frame.

[0011] In some embodiments, the stroller further comprises a seat, and the first frame is connected to one side of the seat along the width direction;

[0012] and / or,

[0013] The child stroller further comprises a front leg and a rear leg, wherein the front leg is rotatably connected to the rear leg, and one end of the second frame is rotatably connected to the rear leg, and the other end is rotatably connected to the third frame.

[0014] In the above embodiment, the first frame can connect and support the seat, that is, the first frame can be a seat tube, and the second frame is rotatably connected to the rear leg frame and the third frame can play a linkage role.

[0015] In some embodiments, the third frame further includes a push rod, and the locking member is slidably connected to the push rod so that the locking member can move relative to the first clamping member and the second clamping member.

[0016] In the above embodiment, the locking member is slidably connected to the push rod so that when the stroller is switched from the unlocked state to the first locked state, the locking member can slide along the first direction to a position close to the first slot so that the locking member extends into the first slot.

[0017] In some embodiments, the locking member has a locking hole, and the third frame further includes a pin. When the stroller is in the first locking state, the pin extends into the locking hole to limit the locking member from sliding relative to the push rod. When the stroller is in the unlocking state, the pin disengages from the locking hole to allow the locking member to slide relative to the push rod.

[0018] In the above embodiment, when the stroller is in the unlocked state, the pin extends into the locking hole to restrict the locking member from sliding relative to the push rod. When the stroller is in the unlocked state, the pin disengages from the locking hole to allow the locking member to slide relative to the push rod.

[0019] In some embodiments, the third frame further includes a push rod, which extends along a first direction when viewed along the width direction of the stroller. The locking piece connects the end of the push rod along the first direction and defines a third groove. The first groove has a first surface and a second surface, and the third groove has a third surface and a fourth surface. When the third frame obtains a driving force along the rotational direction, the stroller can be switched to a released state. When the stroller is in the first locked state, the first surface is opposite to the third surface along the rotational direction to limit the third frame from rotating along the rotational direction, and the second surface and the fourth surface are opposite along the first direction.

[0020] In the above embodiment, the first surface abuts the third surface tangentially along the rotational direction, thereby limiting the rotation of the third frame along the rotational direction, that is, achieving a locking effect on the first locking state. The relative arrangement of the second surface and the fourth surface along the first direction further prevents the third frame from shaking, thereby making the first locking state more stable.

[0021] In some embodiments, the first clamping member further defines a fourth slot, and the fourth slot has a fifth surface. When the stroller is in the first locking state, after the third frame obtains the driving force along the rotational direction, the stroller can sequentially switch to the released state and the second locking state. When the stroller is in the second locking state, the locking member is located in the fourth slot, and the fifth surface is opposite to the third surface in the opposite direction of the rotational direction, so as to limit the reverse rotation of the third frame along the rotational direction.

[0022] In the above embodiment, the fifth surface of the fourth groove limits the rotation of the third frame relative to the first frame, thereby making the second locking state more stable.

[0023] In some embodiments, the third frame further comprises a push rod, and the locking member is slidably connected to the push rod so that the locking member can move relative to the first clamping member and the second clamping member;

[0024] The first clamping member also includes a pushing surface, which is located between the first surface and the fifth surface along the rotational circumferential direction. The third frame also includes an adjusting member, which is configured to drive the locking member to slide in a direction away from the first clamping member and the second clamping member after obtaining driving force, so that the locking member abuts against the side of the pushing surface away from the first groove along the rotational radial direction of the third frame.

[0025] In the above embodiment, when the locking member slides to a position away from the first clamping member, the locking member rotates to above the pushing surface, and then the pushing surface can play a role in supporting the locking member during the subsequent rotation process. The user no longer needs to continuously press the adjustment button of the adjustment member, that is, there is no need to continuously maintain the position of the locking member through steel wire and pins, which improves the convenience of operation.

[0026] In some embodiments, when viewed along the width direction of the child stroller, the pushing surface is an arc surface and extends around the rotation axis of the first frame relative to the third frame.

[0027] In the above embodiment, the pushing effect of the pushing surface on the locking member is made more stable during the rotation of the third frame (ie, during the process of the child stroller switching from the first locking state to the second locking state).

[0028] In some embodiments, the adjusting member is configured to drive the locking member to slide in a direction away from the first clamping member and the second clamping member after obtaining the driving force, and to disengage the locking member from the second clamping member.

[0029] In the above embodiment, when the child stroller switches from the first locking state to the second locking state, only the pushing surface of the first engaging member contacts the locking member, thereby making the pushing action of the pushing surface stable and reliable and facilitating the folding movement of the second frame during this process.

[0030] In some embodiments, when the child stroller is in the second locking state, the second clamping member is spaced apart from the third frame.

[0031] In the above embodiment, when the child stroller is in the folded state, the abutment and limiting effect is achieved only by the cooperation between the locking member and the fourth slot. This arrangement can simplify the cooperation of the locking member in this state.

[0032] Compared with the prior art, the present invention has the following advantages:

[0033] The stroller of the present application includes a first frame, a second frame, and a third frame. The first frame includes a first clamping member, the second frame includes a second clamping member, and the third frame includes a locking member. The first clamping member has a first slot and the second clamping member has a second slot, both of which are capable of engaging with the locking member. When the stroller is in the unlocked state, the locking member disengages from the first slot and the second slot. When the stroller is in the first locked state, the first clamping member and the second clamping member are located on either side of the locking member along the width of the stroller, and the locking member is located in the first slot and the second slot. Compared to related art arrangements that rely solely on a pair of cooperating locking structures (or a pair on each left and right frame) to achieve the relative motion locking effect between multiple frames, the first slot and the second slot of the present application are located on the left and right sides of the locking member, respectively, and together provide a dual locking effect for the locking member. This allows the stroller of the present application to simultaneously lock the relative positions of multiple frames, providing a more reliable locking effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without any creative work.

[0035] Figure 1 This is a side view of a child stroller provided in one embodiment of the present application; wherein the child stroller is in a first locked state, and the seat and some parts inside the push rod are shown in dotted lines;

[0036] Figure 2 for Figure 1 A partial enlarged schematic diagram of point A in the middle;

[0037] Figure 3 This is a first side perspective diagram of a child stroller provided in one embodiment of the present application; wherein the child stroller is in a first locked state;

[0038] Figure 4 for Figure 3A partial enlarged schematic diagram of point B in the middle;

[0039] Figure 5 This is a first side perspective diagram of a child stroller provided in one embodiment of the present application; wherein the child stroller is in an unlocked state;

[0040] Figure 6 for Figure 5 A partial enlarged schematic diagram of center C;

[0041] Figure 7 This is a side view of a child stroller provided in one embodiment of the present application; wherein the child stroller is in a second locked state;

[0042] Figure 8 This is an exploded schematic diagram of a child stroller in a first locked state provided in one embodiment of the present application;

[0043] Figure 9 for Figure 8 A local enlarged schematic diagram of point D in the middle.

[0044] Description of Figure Numbers:

[0045] Strollers 100;

[0046] First frame 110; first clamping member 111; pushing surface 1112; first groove 112; first surface 1121; second surface 1122; fourth groove 113; fifth surface 1131;

[0047] Second frame 120; second clamping member 121; second slot 122;

[0048] The third frame 130; the locking member 131; the locking hole 1311; the third slot 1312; the third surface 13121; the fourth surface 13122; the push rod 132; the pin 133; the adjustment member 134;

[0049] Seats 140;

[0050] Front tripod 150;

[0051] rear tripod 160;

[0052] Width direction X;

[0053] First direction Y;

[0054] Rotate in the circumferential direction R.

[0055] The realization of the objectives, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0056] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0057] It should be noted that if the embodiments of the present application involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0058] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present application, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of such features. In addition, if "and / or", "and / or" or "and / or" appear in the full text, its meaning includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme in which A and B are satisfied at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0059] In order to maintain the children's stroller in the open or folded state, a corresponding locking structure is provided. In the related art, since only one pair of locking structures (or one pair on each of the left and right frames) cooperates with each other to achieve the locking effect of the relative motion state between multiple frames, the stability of the locked state is poor.

[0060] In view of this, see Figures 1-9 In an embodiment of the present application, a child stroller 100 is provided, comprising a first frame 110, a second frame 120, and a third frame 130. The first frame 110 comprises a first clamping member 111, which defines a first slot 112. The second frame 120 comprises a second clamping member 121, which defines a second slot 122. The third frame 130 comprises a locking member 131. The first frame 110, the second frame 120, and the third frame 130 are all frame parts of the child stroller 100. As required, the above three frames can be located at any appropriate part of the child stroller 100, see Figure 1 and Figure 3For example, in some embodiments, the first frame 110 is a seat tube and is located below the seat portion of the stroller. Its upper end is generally connected to the seat, and its lower end is connected to the stroller frame. The seat tube plays a key role in supporting the seat, ensuring the stability of the seat when the child sits in the stroller; in some embodiments, the second frame 120 is a linkage rod, and the main part of the third frame 130 is a push rod 132. One end of the linkage rod is rotatably connected to the push rod 132, and the other end is rotatably connected to the rear leg frame 160. The push rod 132 extends obliquely toward the rear side from the end connected to the linkage rod, so that the user can push the push rod 132 and drive the entire stroller 100 to move. It should be noted that any one of the first clamping member 111, the second clamping member 121 and the locking member 131 can be a part of an integrated part, or can be a separately detachable structure.

[0061] Based on the first frame 110, the second frame 120 and the third frame 130 defined above, see Figure 3-Figure 6 as well as Figure 8-Figure 9The stroller 100 has a released state and a first locked state. When the stroller 100 is in the released state, the locking member 131 is disengaged from the first slot 112 and the second slot 122, so that the third frame 130 can rotate relative to the first frame 110 and the second frame 120 after obtaining driving force. When the stroller 100 is in the first locked state, along the width direction X of the stroller 100 (i.e., the left-right direction of the stroller 100), the first clamping member 111 and the second clamping member 121 are respectively located on both sides of the locking member 131, and the locking member 131 is located in the first slot 112 and the second slot 122, so that the first clamping member 111 and the second clamping member 121 jointly restrict the movement of the third frame 130 relative to the first frame 110 and the second frame 120. It is understood that in the unlocked state, the third frame 130 can rotate relative to the first frame 110 and the second frame 120. At the same time, in some embodiments, the first frame 110 and the second frame 120 can also rotate relative to each other. In the first locked state, the locking member 131 cooperates with the first slot 112 and the second slot 122 to restrict the rotation of the locking member 131 relative to the first frame 110 and the second frame 120, thereby maintaining the stroller 100 in the first locked state. Depending on the needs, the first locked state can be the expanded state of the stroller 100 when in use, or the folded state of the stroller 100 when stored or carried. For ease of description, the following description uses the embodiment in which the first locked state is the expanded state of the stroller 100. In particular, in the first locking state, since the first groove 112 and the second groove 122 are respectively located on the left and right sides of the locking member 131 and jointly play a double locking role on the locking member 131, on the one hand, the locking effect of the third frame 130 can be made more reliable, and on the other hand, a set of mutually coordinated locking structures (i.e., the first groove 112, the second groove 122 and the locking member 131) can be utilized to simultaneously lock the first frame 110, the second frame 120 and the third frame 130, thereby achieving the locking of multiple frames while making the locking structure more streamlined and easier to operate.

[0062] As can be seen, the stroller 100 of the present application includes a first frame 110, a second frame 120, and a third frame 130. The first frame 110 includes a first clamping member 111, the second frame 120 includes a second clamping member 121, and the third frame 130 includes a locking member 131. The first clamping member 111 has a first slot 112, and the second clamping member 121 has a second slot 122, both of which are capable of engaging with the locking member 131. When the stroller 100 is in the unlocked state, the locking member 131 is disengaged from the first slot 112 and the second slot 122. When the stroller 100 is in the first locked state, the first clamping member 111 and the second clamping member 121 are respectively located on either side of the locking member 131 along the width direction X of the stroller 100, and the locking member 131 is located in the first slot 112 and the second slot 122. Compared with the related art, which relies only on a pair of locking structures (or a pair of left and right frames) that cooperate with each other to achieve the locking effect of the relative motion state between multiple frames, the first groove 112 and the second groove 122 of the present application are respectively located on the left and right sides of the locking member 131, and together play a double locking role on the locking member 131. The child stroller 100 of the present application can simultaneously lock the relative positions of multiple frames and make the locking effect more reliable.

[0063] For the detailed structure of the first frame 110 and the second frame 120, see Figure 1 In some embodiments, the stroller 100 further includes a seat 140, and the first frame 110 is connected to one side of the seat 140 along the width direction X. According to the above configuration, the first frame 110 can function to connect and support the seat 140, that is, the first frame 110 can be a seat tube. In addition, in some embodiments, the stroller 100 further includes a front leg 150 and a rear leg 160, wherein the front leg 150 and the rear leg 160 are arranged crosswise, and the seat tube is connected between the front leg 150 and the rear leg 160. Therefore, when the stroller 100 is in the first locked state, the seat tube, the front leg 150, and the rear leg 160 can collectively form an "A" shape when viewed along the width direction X. This structure can stabilize the overall structure of the stroller 100 and facilitate an improved locking effect.

[0064] In order to realize the folding and unfolding operation of the stroller 100, see Figure 3-Figure 5In some embodiments, the front leg 150 is rotatably connected to the rear leg 160 , and one end of the second frame 120 is rotatably connected to the rear leg 160 and the other end is rotatably connected to the third frame 130 . It can be understood that the arrangement of the second frame 120 being rotatably connected to the rear leg frame 160 and the third frame 130 respectively can play a linkage role. Therefore, when the stroller 100 is in the first locked state, when the third frame 130 obtains the driving force, the third frame 130 rotates relative to the second frame 120, and the second frame 120 also rotates relative to the rear leg frame 160. During the above process, when viewed along the width direction X of the stroller 100, the second frame 120 and the third frame 130 both perform a flipping motion and can be flipped to a position where the rear leg frame 160, the second frame 120 and the third frame 130 are basically stacked in the length direction (i.e., the front-to-back direction of the stroller 100). At this time, the folding operation of the stroller 100 is completed. During the unfolding operation of the stroller 100, the movement process of each frame is opposite to that during the folding operation.

[0065] In order to facilitate the switching of the stroller 100 between the unlocked state and the first locked state, see Figure 3-Figure 5 In some embodiments, the third frame 130 further includes a push rod 132. When viewed along the width direction X of the stroller 100, the push rod 132 extends along a first direction Y. The locking member 131 is slidably connected to the push rod 132, allowing the locking member 131 to move relative to the first engaging member 111 and the second engaging member 121. The push rod 132 is the main portion of the third frame 130. The push rod 132 extends obliquely toward the rear from the end connected to the second frame 120, allowing a user to push the push rod 132 and drive the entire stroller 100 to move. Based on this, it can be understood that the locking member 131 and the push rod 132 form a sliding connection so that when the stroller 100 is switched from the unlocked state to the first locked state, the locking member 131 can slide along the first direction Y to a position close to the first groove 112, so that the locking member 131 extends into the first groove 112, and the first groove 112 can abut and limit the locking member 131. At this time, the locking member 131 can also extend into the second groove 122 at the same time, or the locking member 131 can still be separated from the second groove 122, and the abutment and cooperation between the two are completed by another structure or action; when the stroller 100 is switched from the first locked state to the unlocked state, the locking member 131 can also slide along the first direction Y to a position away from the first groove 112, so that the locking member 131 can be separated from the first groove 112. At this time, the locking member 131 can also be separated from the second groove 122, or the locking member 131 can still be located in the second groove 122, and the separation of the two is completed by another structure or action.

[0066] Based on the push rod 132 set above, in order to fix the relative position of the locking member 131 and the push rod 132, see Figure 3-Figure 5In some embodiments, the locking member 131 has a locking hole 1311, and the third frame 130 further includes a pin 133. When the stroller 100 is in the first locking state, the pin 133 extends into the locking hole 1311 to limit the sliding of the locking member 131 relative to the push rod 132. When the stroller 100 is in the unlocking state, the pin 133 disengages from the locking hole 1311 to allow the locking member 131 to slide relative to the push rod 132. More specifically, in some embodiments, the pin 133 can be passed through the locking hole 1311 along the width direction X, one end of the push rod 132 can be connected to the locking piece 131, and the other end can be connected to the adjustment button. The adjustment piece 134 includes an adjustment button and a steel wire. A driving cavity is formed inside the push rod 132, and a steel wire is provided in the driving cavity. One end of the steel wire is connected to the adjustment button of the adjustment piece 134, and the other end is connected to the pin 133. After the user presses the adjustment button of the adjustment piece 134, the steel wire drives the pin 133 to slide upward and away from the first clamping piece 111. In order to facilitate the pulling or resetting effect of the steel wire, a spring can be passed through the steel wire, and the spring can be connected to the pin 133 or the adjustment piece 134.

[0067] For the specific structure of the locking member 131, see Figure 3-Figure 5 Based on the push rod 132 defined in the aforementioned embodiments, in some embodiments, the push rod 132 extends in a first direction Y when viewed along the width direction X of the stroller 100. The locking member 131 connects to the end of the push rod 132 along the first direction Y and defines a third slot 1312. To achieve a snap fit between the locking member 131 and the first slot 112, in some embodiments, the first slot 112 has a first surface 1121 and a second surface 1122, and the third slot 1312 has a third surface 13121 and a fourth surface 13122. When the third frame 130 receives a driving force along the rotational direction R, the stroller 100 can be switched to an unlocked state. Thus, when the stroller 100 is in the first locked state, the first surface 1121 faces the third surface 13121 along the rotational direction R, thereby restricting rotation of the third frame 130 along the rotational direction R. The second surface 1122 and the fourth surface 13122 face each other along the first direction Y. It can be understood that by the tangential abutment of the first surface 1121 against the third surface 13121 along the rotational circumferential direction R, the rotation of the third frame 130 along the rotational circumferential direction R can be restricted, that is, the first locked state can be locked. The relative arrangement of the second surface 1122 and the fourth surface 13122 along the first direction Y can further prevent the third frame 130 from shaking, thereby making the first locked state more stable. The structure of the first slot 112 and the cooperative arrangement of the locking member 131 and the first slot 112 described in the above embodiment can be similarly applied to the structure of the second slot 122 and the cooperative arrangement of the locking member 131 and the second slot 122, and will not be repeated here.

[0068] It can be seen from the description of the above embodiments that the first locking state can correspond to the unfolded state of the stroller 100. In addition to achieving the locking effect in the unfolded state, the locking effect also needs to be achieved when the stroller 100 is folded to ensure that the folded state of the stroller 100 is stable. Figure 3-Figure 7 In some embodiments, the first latch 111 further defines a fourth slot 113 having a fifth surface 1131. When the stroller 100 is in the first locked state, upon receiving a driving force along the rotational direction R from the third frame 130, the stroller 100 can sequentially switch between the unlocked state and the second locked state. When the stroller 100 is in the second locked state, the locking member 131 is located opposite the third surface 13121 of the fifth surface 1131 of the fourth slot 113 along the rotational direction R, thereby restricting reverse rotation of the third frame 130 along the rotational direction R. It will be appreciated that the abutment and restraining effect of the fifth surface 1131 of the fourth slot 113 on the locking member 131 is similar to the abutment and restraining effect of the first slot 112 on the locking member 131, namely, by restricting rotation of the third frame 130 relative to the first frame 110, the second locked state is further stabilized. Therefore, the structure and arrangement of the fourth groove 113 can refer to the relevant description of the first groove 112 in the above-mentioned embodiments, and will not be repeated here. In some embodiments, the locking member 131 can define the fourth groove 113. When the child stroller 100 is in the second locked state, the fifth surface 1131 can abut the groove surface of the fourth groove 113, so that the fourth groove 113 and the locking member 131 cooperate with each other to achieve abutment and limiting effect. This arrangement can make the locking effect of the second locked state more reliable. In other embodiments, the locking member 131 can no longer be provided with a separate groove body to cooperate with the fourth groove 113. This arrangement can simplify the structure of the locking member 131 and reduce costs. Considering that the child stroller 100 is less affected by external forces after being folded and there is no need to consider the safety of the child, the stability of the child stroller 100 in the second locked state can be less than that in the first locked state.

[0069] In order to facilitate the switching of the stroller 100 between the first locking state, the unlocking state and the second locking state, see Figure 6 In some embodiments, based on the push rod 132 defined in the above embodiments, the first clamping member 111 further includes a push surface 1112. Along the rotational circumferential direction R, the push surface 1112 is located between the first surface 1121 and the fifth surface 1131. Figure 5-Figure 6In some embodiments, the third frame 130 further includes an adjusting member 134. The adjusting member 134 is configured to, upon receiving a driving force, drive the locking member 131 to slide in a direction away from the first clamping member 111 and the second clamping member 121, and cause the locking member 131 to abut against the side of the pushing surface 1112 away from the first groove 112 along the rotational radial direction of the third frame 130. The adjusting member 134 may directly drive the locking member 131, i.e., the adjusting member 134 is directly connected to the locking member 131, or it may indirectly drive the locking member 131. For example, the adjusting member 134 may include the steel wire and the adjusting button of the aforementioned embodiment, the steel wire being (directly or indirectly) connected to the pin 133, which extends into the locking hole 1311 of the locking member 131, thereby achieving the locking and indirect driving effects of the adjusting member 134 on the locking member 131. It is understood that when the locking member 131 slides to a position away from the first engaging member 111, the locking member 131 rotates to above the pushing surface 1112, and the pushing surface 1112 can then support the locking member 131 during the subsequent rotation process. The user no longer needs to continuously press the adjustment button of the adjustment member 134, that is, there is no need to continuously maintain the position of the locking member 131 through the steel wire and pin 133, thereby improving the convenience of operation. Furthermore, in order to make the pushing effect of the pushing surface 1112 on the locking member 131 more stable during the rotation of the third frame 130 (that is, during the process of the child stroller 100 switching from the first locking state to the second locking state), see Figure 6 In some embodiments, when viewed along the width direction X of the stroller 100 , the pushing surface 1112 is an arc surface and extends along the rotational circumferential direction R.

[0070] Based on the above embodiment for the arrangement of the adjusting member 134, see Figure 3-Figure 6In some embodiments, the adjusting member 134 is configured to, upon receiving a driving force, drive the locking member 131 to slide in a direction away from the first engaging member 111 and the second engaging member 121, thereby disengaging the locking member 131 from the second engaging member 121. It is understood that after the stroller 100 is released from the first locked state, the adjusting member 134 can drive the locking member 131 to move above the pushing surface 1112 of the first engaging member 111, so that the pushing surface 1112 can push against the locking member 131, while simultaneously disengaging the locking member 131 from the second engaging member 121. This arrangement ensures that when the stroller 100 switches from the first locked state to the second locked state, only the pushing surface 1112 of the first engaging member 111 contacts the locking member 131, ensuring a stable and reliable pushing action by the pushing surface 1112 and facilitating the folding movement of the second frame 120 during this process. Furthermore, in some embodiments, when the stroller 100 is in the second locked state, the second latch 121 is spaced apart from the third frame 130. That is, when the stroller 100 is in the folded state, the locking member 131 and the fourth slot 113 are the only means of contact and restraint. This arrangement simplifies the engagement of the locking member 131 in this state. Given that the stroller 100 is less susceptible to external forces after folding and that child safety is not a concern, the stability of the stroller 100 in the second locked state can be less than that in the first locked state. In other embodiments, the first latch 111 further defines a fifth slot. When the stroller 100 is in the second locked state, the locking member 131 is located in the fifth slot, and the slot surface of the fifth slot can face the third surface 13121 in the opposite direction of the rotational direction R, thereby limiting rotation of the third frame 130 in the opposite direction of the rotational direction R.

[0071] See also Figure 3 In some embodiments, the first frame 110, the second frame 120, and the third frame 130 described in the above embodiments can all be arranged on one side of the child stroller 100 along the width direction X, and the structure of the other side of the child stroller 100 along the width direction X can be the same or similar to the former, that is, the same or similar structure of the first frame 110, the second frame 120, and the third frame 130 can be arranged on the other side, so that both sides of the child stroller 100 have a reliable locking effect.

[0072] The above are only preferred embodiments of the present application and do not limit the patent scope of the present application. All equivalent structural transformations made based on the contents of the present application specification and drawings, or direct / indirect applications in other related technical fields, are included in the patent protection scope of the present application.

Claims

1. A child stroller, characterized in that: include: A first frame includes a first clamping member, wherein the first clamping member defines a first slot; A second frame includes a second clamping member, wherein the second clamping member defines a second slot; a third frame including a locking member; In which, the child stroller has a released state and a first locked state. When the child stroller is in the released state, the locking member is disengaged from the first slot and the second slot, so that the third frame can rotate relative to the first frame and the second frame after obtaining driving force; when the child stroller is in the first locked state, along the width direction of the child stroller, the first clip and the second clip are respectively located on both sides of the locking member, and the locking member is located in the first slot and the second slot, so that the first clip and the second clip jointly limit the movement of the third frame relative to the first frame and the second frame.

2. The stroller according to claim 1, wherein: The child stroller further includes a seat, and the first frame is connected to one side of the seat along the width direction; and / or, The child stroller further includes a front leg and a rear leg, wherein the front leg is rotatably connected to the rear leg, and one end of the second frame is rotatably connected to the rear leg, and the other end is rotatably connected to the third frame.

3. The stroller according to claim 1, wherein: The third frame further includes a push rod, and the locking member is slidably connected to the push rod so that the locking member can move relative to the first clamping member and the second clamping member.

4. The stroller according to claim 3, characterized in that: The locking member has a locking hole, and the third frame further includes a pin. When the stroller is in the first locking state, the pin extends into the locking hole to limit the sliding of the locking member relative to the push rod. When the stroller is in the unlocking state, the pin disengages from the locking hole to allow the locking member to slide relative to the push rod.

5. The stroller according to claim 1, wherein: The third frame further includes a push rod, which extends in a first direction when viewed along the width direction of the stroller. The locking piece connects the end of the push rod along the first direction and defines a third groove, the first groove having a first surface and a second surface, and the third groove having a third surface and a fourth surface. When the third frame obtains a driving force along the rotational direction, the stroller can be switched to the unlocked state. When the stroller is in the first locked state, the first surface is opposite to the third surface along the rotational direction to limit the third frame from rotating along the rotational direction, and the second surface is opposite to the fourth surface along the first direction.

6. The stroller according to claim 5, characterized in that: The first clamping member further defines a fourth groove, and the fourth groove has a fifth surface. When the stroller is in the first locking state, when the third frame obtains the driving force along the rotational circumferential direction, the stroller can be switched to the unlocked state and the second locking state in sequence. When the stroller is in the second locking state, the locking member is located in the fourth groove, and the fifth surface is opposite to the third surface in the opposite direction of the rotational circumferential direction, so as to limit the reverse rotation of the third frame along the rotational circumferential direction.

7. The stroller according to claim 6, characterized in that: The third frame further includes a push rod, and the locking member is slidably connected to the push rod so that the locking member can move relative to the first clamping member and the second clamping member; The first clamping member also includes a pushing surface, which is located between the first surface and the fifth surface along the rotational circumferential direction. The third frame also includes an adjusting member, which is configured to drive the locking member to slide in a direction away from the first clamping member and the second clamping member after obtaining a driving force, so that the locking member abuts against the side of the pushing surface away from the first groove along the rotational radial direction of the third frame.

8. The stroller according to claim 7, characterized in that: When viewed along the width direction of the stroller, the pushing surface is an arc surface and extends around the rotation axis of the first frame relative to the third frame.

9. The stroller according to claim 7, characterized in that: The adjusting member is configured to drive the locking member to slide in a direction away from the first clamping member and the second clamping member after obtaining the driving force, and to disengage the locking member from the second clamping member.

10. The stroller according to claim 6, characterized in that: When the child stroller is in the second locking state, the second clamping member is spaced apart from the third frame.

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