CN216140048U - Children's barrow - Google Patents

Abstract

The utility model discloses a child stroller, which comprises an upper support and a push rod frame, wherein the push rod frame comprises an upper push rod and a lower push rod, a first locking mechanism for locking the upper push rod and the lower push rod relatively is arranged between the upper push rod and the lower push rod, and a second locking mechanism for locking the lower push rod and the upper support relatively is arranged between the lower push rod and the upper support. The unlocking mechanism comprises an unlocking operation piece, the unlocking operation piece is provided with a first position, a second position and a third position on the push rod frame, and when the unlocking operation piece is located at the first position, the first locking mechanism and the second locking mechanism are both in a locking state; when the unlocking operation piece is positioned at the second position, the first locking mechanism is in an unlocking state, and the second locking mechanism is in a locking state; when the unlocking operation piece is positioned at the third position, the first locking mechanism and the second locking mechanism are both in an unlocking state. This children's shallow only need operate same unblock operating parts, can control the unblock of different locking mechanical system, makes things convenient for the head of a family to use, and user experience rises.

Description

Children's barrow

Technical Field

The utility model relates to the field of children products, in particular to a stroller.

Background

At present, in order to satisfy the head of a family and children's different demands, some children's shallow has the function of rotatory switching-over: the seat pocket on children's shallow upper portion can be around the relative lower carriage rotation 180 of vertical pivot for children in the seat pocket can be back to the head of a family forward push the state and face the head of a family reverse push the state between the state, meanwhile, the push rod of being connected with the upper bracket rotation can be relative seat pocket swing back and forth, thereby no matter be under forward push or reverse push state, head of a family's position of carrying and posture can both remain unchanged, make children's shallow use more smooth and easy. In addition, to facilitate storage, the stroller is generally foldable to reduce its volume.

Therefore, the push rod of the stroller at least has two sets of locking mechanisms, namely a locking mechanism for unfolding and folding the push rod and a rotation locking mechanism between the push rod and the upper bracket. In the prior art, the two sets of locking mechanisms are separately and independently arranged and are respectively provided with one set of independent unlocking mechanism, so that different unlocking parts are required to be respectively operated to unlock different locking mechanisms, the structure of the cart is complex, the operation of the cart in use is complex, and inconvenience is brought to a user.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects in the prior art and provide the child stroller which can realize reversing, has a simple locking and unlocking structure and is convenient to unlock.

In order to achieve the purpose, the utility model adopts the technical scheme that:

a child stroller comprises a stroller frame body and a stroller frame, wherein the stroller frame comprises an upper push rod and a lower push rod, the upper push rod can be arranged on the lower push rod in a relatively sliding manner along the length extension direction of the lower push rod, the lower end part of the lower push rod can be arranged on the stroller frame body in a relatively rotating manner around a first rotation center line, the first rotation center line extends along the width direction of the stroller frame body, a first locking mechanism for relatively locking the upper push rod and the lower push rod is arranged between the upper push rod and the lower push rod, a second locking mechanism for relatively locking the lower push rod and the stroller frame body is arranged between the lower push rod and the stroller frame body, the first locking mechanism and the second locking mechanism respectively have a locking state and an unlocking state, the child stroller further comprises an unlocking mechanism, the unlocking mechanism comprises an unlocking operation piece, and the unlocking operation piece is movably arranged on the stroller frame, the unlocking operation piece is provided with a first position, a second position and a third position on the push rod frame, and when the unlocking operation piece is located at the first position, the first locking mechanism and the second locking mechanism are both in a locking state; when the unlocking operation piece is located at the second position, the first locking mechanism is in an unlocking state, and the second locking mechanism is in a locking state; when the unlocking operation piece is located at the third position, the first locking mechanism and the second locking mechanism are both in an unlocking state.

Preferably, the unlocking mechanism further comprises an unlocking limiting part, the unlocking limiting part is movably arranged on the push rod frame, the unlocking limiting part is provided with a blocking position and an unlocking position on the push rod frame, when the unlocking limiting part is located at the blocking position, the unlocking limiting part blocks on a movement path of the unlocking operation part, and the unlocking operation part is limited between a first position and a second position; when the unlocking limiting part is located at the unlocking position, the unlocking limiting part leaves the movement path of the unlocking operation part, and the unlocking operation part can move among the first position, the second position and the third position.

Further preferably, the unlocking operation member can be relatively slidably disposed on the push rod frame along a first direction, the unlocking limiting member can be relatively slidably disposed on the push rod frame along a second direction, the first direction is parallel to or intersects with the second direction, and the first position, the second position, and the third position are sequentially disposed along the first direction.

Preferably, the first direction is a radial direction of the push rod frame, and the second direction is an axial direction of the push rod frame.

Further preferably, the unlocking operation member has a pushing portion, the unlocking limiting member has a limiting boss, and when the unlocking limiting member is located at the blocking position and the unlocking operation member is located at the second position, the pushing portion abuts against the limiting boss.

Preferably, the first locking mechanism includes a first locking part and a first mating part, the first locking part is slidably arranged on the upper push rod relatively, the first mating part is fixedly arranged on the lower push rod, and the first locking mechanism is in a locked state, and the first locking part and the first mating part are arranged in a mating manner; when the first locking mechanism is in an unlocked state, the first locking piece is disengaged from the first mating piece; the second locking mechanism comprises a second locking piece and a second matching piece, the second locking piece can be arranged on the lower push rod in a relatively sliding mode, the second matching piece is fixedly arranged on the frame main body, and the second locking mechanism is in a locking state and is arranged in a matching mode with the second matching piece; and when the second locking mechanism is in an unlocked state, the second locking piece is disengaged from the second mating piece.

Further preferably, the unlocking mechanism further comprises a first unlocking slider, the first unlocking slider is arranged on the upper push rod in a manner of relatively sliding along the axial direction of the upper push rod, the first locking member is arranged on the upper push rod in a manner of relatively sliding along the radial direction of the upper push rod, and a first unlocking structure which is linked with the first locking member to slide when the first unlocking slider slides is arranged between the first unlocking slider and the first locking member; the unlocking mechanism further comprises a second unlocking sliding block, the second unlocking sliding block can be arranged on the lower push rod in a relatively sliding mode along the axial direction of the lower push rod, a second locking piece can be arranged on the lower push rod in a relatively sliding mode along the radial direction of the lower push rod, and a second unlocking structure which is used for enabling the second unlocking sliding block to be in linkage when sliding is arranged between the second unlocking sliding block and the second locking piece and enables the second locking piece to slide is arranged between the second unlocking sliding block and the second locking piece.

Still further preferably, the first unlocking structure includes a first unlocking inclined plane disposed on the first unlocking slider and a first matching inclined plane disposed on the first locking member, the first unlocking inclined plane and the first matching inclined plane are matched with each other and respectively extend obliquely along the axial direction of the upper push rod, and the first matching inclined plane abuts against the first unlocking inclined plane; the second unlocking structure comprises a second unlocking inclined plane and a second matching inclined plane, wherein the second unlocking inclined plane is arranged on the second unlocking sliding block, the second matching inclined plane is arranged on the second locking piece, the second unlocking inclined plane and the second matching inclined plane are matched with each other and respectively extend along the axial direction of the lower push rod in an inclined mode, and the second matching inclined plane is abutted against the second unlocking inclined plane.

Preferably, the unlocking mechanism comprises a first unlocking slide block and a second unlocking slide block, wherein the first unlocking slide block is arranged on the upper push rod in a relatively sliding mode along the axial direction of the upper push rod, the second unlocking slide block is arranged on the lower push rod in a relatively sliding mode along the axial direction of the lower push rod, the sliding directions of the first unlocking slide block and the second unlocking slide block are parallel to each other, the unlocking mechanism further comprises a first traction cable and a second traction cable, the unlocking operation member is arranged on the upper push rod, the first traction cable is connected between the unlocking operation member and the first unlocking slide block, and the second traction cable is connected between the first unlocking slide block and the second unlocking slide block.

Further preferably, the unlocking mechanism further comprises a traction piece, the traction piece can be arranged on the upper push rod in a relatively sliding and relatively rotating mode, one end portion of the traction piece is connected with the unlocking operation piece in a rotating mode, and the other end portion of the traction piece is connected with the first traction rope.

Further preferably, the unlocking mechanism further comprises a traction wheel and a guide wheel, the joint of the second traction cable and the first unlocking slide block and the traction wheel are sequentially arranged from top to bottom along the axial direction of the upper push rod, and the second traction cable is sequentially wound on the traction wheel and the guide wheel from the joint of the second traction cable and the first unlocking slide block.

Preferably, the first locking mechanism and the second locking mechanism are respectively provided with two groups which are respectively arranged on the left side and the right side of the push rod frame, and the unlocking operation piece is used for unlocking the two groups of the first locking mechanisms and/or the two groups of the second locking mechanisms simultaneously.

Preferably, the frame main body includes an upper bracket and a lower bracket, the upper bracket is relatively rotatably disposed on the lower bracket around a second rotation center line, and the second rotation center line extends in a height direction of the frame main body.

Preferably, the frame main body includes a seat pocket to which a lower end portion of the lower push rod is rotatably connected.

Due to the application of the technical scheme, the stroller provided by the utility model is ingenious in design, the first locking mechanism and the second locking mechanism are organically combined and share one group of unlocking mechanisms, so that different locking mechanisms can be controlled to unlock only by operating the same unlocking operation part and adjusting the same unlocking operation part to different positions, multiple functions of reversing, folding and unfolding, length adjustment of the push rod frame and the like of the stroller are realized, the appearance of the stroller is simpler, the internal arrangement is more reasonable, more importantly, the stroller is convenient for parents to use, and the user experience is improved.

Drawings

In order to more clearly illustrate the technical solution of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic side view of a stroller in a forward-pushing configuration according to an embodiment of the present invention;

FIG. 2 is a schematic side view of the stroller during rotation of the push rod assembly of the present embodiment;

FIG. 3 is a schematic side view of the stroller in the reverse-pushing state in this embodiment;

FIG. 4 is an exploded view of the seat pocket and the pushrod bracket according to the embodiment;

FIG. 5 is an exploded view of the first locking mechanism and a portion of the unlocking mechanism of the present embodiment;

FIG. 6 is an exploded view of a second locking mechanism and a partial unlocking mechanism according to the present embodiment;

FIG. 7 is a schematic sectional view A-A of FIG. 1;

FIG. 8 is an enlarged view at B of FIG. 7, with the release operating member in the first position;

FIG. 9 is an enlarged view taken at C of FIG. 7, with the release operating member in the first position;

FIG. 10 is an enlarged view taken at D of FIG. 7, with the release operating member in the first position;

FIG. 11 is an enlarged view at B of FIG. 7 with the release operating member in the second position;

FIG. 12 is an enlarged view taken at C of FIG. 7, with the release operating member in the second position;

FIG. 13 is an enlarged view at B of FIG. 7 with the release operating member in a third position;

FIG. 14 is an enlarged view taken at D of FIG. 7 with the release operating member in a third position;

FIG. 15 is a front view of the stroller of this embodiment;

FIG. 16 is a cross-sectional view E-E of FIG. 15 with the release operating member in the first position;

FIG. 17 is a cross-sectional view E-E of FIG. 15 with the release operating member in a third position;

FIG. 18 is an exploded view of a portion of the upper bracket, the second locking mechanism and the unlocking mechanism of the present embodiment;

FIG. 19 is an enlarged view taken at F of FIG. 18, with the release operating member in the first position;

FIG. 20 is an enlarged view taken at F of FIG. 18, with the release operating member in the third position;

wherein: 1000. an upper bracket; 1100. a seat pocket; 1101. a backrest; 1200. an upper connecting member; 2000. a push rod frame; 2100. a push rod is arranged; 2200. a lower push rod; 2201. a rotating part; 3000. a lower bracket; 3100. a front wheel bracket; 3101. a front wheel assembly; 3200. a rear wheel support; 3201. a rear wheel assembly; 3300. a lower connecting member;

1. an unlocking operation member; 1a, a pushing part; 2. unlocking the limiting piece; 2a, a limiting boss; 3. a first locking member; 31. a locking projection; 32. a first mating ramp; 4. a first mating member; 41. a lock hole; 5. a second locking member; 51. locking teeth; 52. a second mating ramp; 6. a second mating member; 61. a tooth locking groove; 7. a first unlocking slide block; 71. a first unlocking ramp; 72. an elastic sleeve; 8. a second unlocking slide block; 81. a second unlocking ramp; 9. a first traction cable; 9a, a first connection position; 91. a traction wheel; 92. a guide wheel; 10. a second traction cable; 10a, a second connection position; 11. a pulling member; 111. a slide shaft; 112. a chute; x, a first rotation center line; y, a second rotation center line; z and a third rotation center line.

Detailed Description

Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings so that the advantages and features of the utility model may be more readily understood by those skilled in the art.

In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inner", "outer", "left-right direction", "height direction", "front-back direction", etc. indicate the orientation or positional relationship observed by the child when the stroller is in the forward-pushing state and the child is normally seated on the stroller based on fig. 1, and are only for convenience of describing and simplifying the present invention, but do not indicate or imply that the referred device or element must have a specific orientation, only have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

It should be noted that, unless otherwise specified, when a feature is referred to as being "fixed" or "connected" to another feature, it may be directly fixed or connected to the other feature or indirectly fixed or connected to the other feature. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. Further, the description of the upper, lower, left, right, etc. used in the present invention is only with respect to the positional relationship of the respective components of the present invention with respect to each other in the drawings.

Referring to fig. 1 to 3, a stroller includes an upper frame 1000, a lower frame 3000, and a push rod frame 2000, wherein the push rod frame 2000 is rotatably provided on the upper frame 1000 around a first rotation center line X, the upper frame 1000 is rotatably provided on the lower frame 3000 around a second rotation center line Y, the first rotation center line X extends in a width direction of the upper frame 1000, and the second rotation center line Y extends in a height direction of the stroller.

The upper bracket 1000 specifically includes a seat pocket 1100 for seating a child, and an upper connector 1200 fixedly installed at the bottom of the seat pocket 1100, and the seat pocket 1100 includes a backrest 1101. The lower frame 3000 includes two sets of side frames separately disposed at left and right sides and a lower connecting member 3300 connected between the two sets of side frames, and each set of side frame includes a front wheel frame 3100 having a front wheel assembly 3101 at the bottom and a rear wheel frame 3200 having a rear wheel assembly 3201 at the bottom. In this embodiment, the upper end portion of the front wheel frame 3100, the upper end portion of the rear wheel frame 3200, and the lower link 3300 are connected together to pivot about a third pivot axis Z extending in the width direction of the stroller. The upper link 1200 is rotatably connected to the lower link 3300 about the second rotation axis Y.

Thus, the upper frame 1000 and the push rod frame 2000 can rotate as a whole relative to the lower frame 3000, and the push rod frame 2000 can swing back and forth relative to the upper frame 1000, so that the stroller has a forward pushing state (as shown in fig. 1) in which a child faces away from the push rod frame 2000 and a backward pushing state (as shown in fig. 3) in which the child faces toward the push rod frame 2000 when the stroller is in use, thereby meeting different use requirements of the child and parents. When the baby stroller is not used, the baby stroller can be folded and stored, and transportation and storage are facilitated.

Referring to fig. 7, in the present embodiment, the push rod frame 2000 specifically includes an upper push rod 2100 and a lower push rod 2200, the lower push rod 2200 has two sets disposed on the left and right sides of the upper frame 1000, and the upper push rod 2100 is disposed on the two sets of lower push rods 2200 in an inverted U-shape. On each of the left and right sides of the push rod frame 2000, the push-up rod 2100 extends in the same direction as the length of the push-down rod 2200, and the push-up rod 2100 is provided on the push-down rod 2200 so as to be relatively slidable in the axial direction of the push-down rod 2200. A set of first locking mechanisms for locking the upper push rod 2100 and the lower push rod 2200 on each side are disposed between the two, so that the telescopic folding and unfolding of the push rod frame 2000 can be realized. In some embodiments, the first locking mechanism may also lock upper plunger 2100 in different height positions of lower plunger 2200, allowing for length adjustment of plunger carrier 2000 to accommodate parents of different heights.

The lower end of each set of push-down rods 2200 is fixedly provided with a rotating part 2201, and the rotating parts 2201 are arranged on the seat pocket 1100 in a way of relatively rotating around the first rotation center line X. A second locking mechanism for locking the rotating portion 2201 and the seat pocket 1100 is provided between the rotating portion and the seat pocket 1100, so that the push rod frame 2000 and the seat pocket 1100 can be locked relatively in the forward and backward states.

The child stroller is further provided with an unlocking mechanism capable of controlling one or both of the first locking mechanism and the second locking mechanism to be unlocked, and the unlocking mechanism is only provided with one group of unlocking operation parts 1, so that unlocking operation is simplified, and the child stroller is convenient to use.

Specifically, the unlocking operation member 1 is provided on the top of the push-up rod 2100 so as to be relatively slidable in the radial direction of the push-up rod 2100, and the unlocking operation member 1 has a first position, a second position, and a third position in this order from bottom to top in the sliding direction. The unlocking mechanism further comprises an unlocking limiting part 2 for limiting the sliding of the unlocking operation part 1, the unlocking limiting part 2 can be arranged at the top of the upper push rod 2100 in a relative sliding mode along the axial direction of the upper push rod 2100, and the unlocking limiting part 2 and the unlocking operation part 1 are respectively arranged on two sides along the radial direction of the upper push rod 2100.

Referring to fig. 8, in the present embodiment, the unlocking operation member 1 has a pushing portion 1a, the unlocking limiting member 2 has a limiting boss 2a, the pushing portion 1a and the limiting boss 2a are disposed opposite to each other along the radial direction of the upper push rod 2100, and the limiting boss 2a has a limiting surface facing the pushing portion 1 a. Thus, the unlocking limit part 2 has a blocking position and an unlocking position on the push-up rod 2100: as shown in fig. 8 and 11, when the unlocking limiting member 2 is located at the blocking position, the limiting surface blocks the movement path of the unlocking operation member 1, the unlocking operation member 1 is limited between the first position and the second position, and when the unlocking operation member 1 slides to the second position, the pushing portion 1a abuts against the limiting surface and cannot slide upwards; as shown in fig. 13, when the unlocking limiting member 2 is located at the unlocking position, the limiting surface is away from the movement path of the unlocking operation member 1, and the unlocking operation member 1 can freely slide between the first position, the second position and the third position. The release mechanism further comprises a first resilient member (not shown) for providing the force required to slide the release operating member 1 towards the first position.

Referring to fig. 4 and 5, the first locking mechanism includes a first locking member 3 and a first mating member 4, the first locking member 3 is slidably disposed on the upper plunger 2100 in a radial direction of the upper plunger 2100, and the first mating member 4 is fixedly disposed on the lower plunger 2200. In this embodiment, a side portion of the first locking member 3 facing the first mating member 4 is provided with a locking protrusion 31, and the first mating member 4 is provided with a locking hole 41 matched with the locking protrusion 31, so that the first locking member 3 can be correspondingly inserted into the locking hole 41 in the sliding process, thereby realizing the locking of the first locking mechanism. The first locking mechanism further comprises a second resilient member (not shown in the figures) for providing the force needed for sliding the first locking member 3 towards the first mating member 4.

In other embodiments, when the child stroller further has the length adjustment function of the push rod frame 2000, the locking hole 41 may have a plurality of holes provided at intervals in the axial direction of the push rod 2200 so that the locking protrusion 31 may be selectively inserted into one of the locking holes 41.

In order to unlock the first locking mechanism, the unlocking mechanism includes a first unlocking slider 7, the first unlocking slider 7 is disposed in the upper push rod 2100 in a manner of relatively sliding along the axial direction of the upper push rod 2100, and a first unlocking structure which links the first locking member 3 to slide away from the first mating member 4 when the first unlocking slider 7 slides is disposed between the first unlocking slider 7 and the first locking member 3. The first unlocking structure specifically includes a first unlocking inclined plane 71 disposed on the first unlocking slider 7, and a first matching inclined plane 32 disposed on the first locking member 3, the first unlocking inclined plane 71 and the first matching inclined plane 32 are mutually matched, and respectively extend obliquely outward from top to bottom along the axial direction of the upper push rod 2100, and the first matching inclined plane 32 abuts against the first unlocking inclined plane 71. In this embodiment, the first matching inclined planes 32 have two sets respectively disposed on two sides of the first locking member 3, and the first unlocking inclined planes 71 also have two sets respectively disposed on two sides of the first unlocking slider 7 in a matching manner, so that the first locking member 3 can be stably driven to slide and unlock by driving the first unlocking slider 7 to slide upward.

Similarly, as shown in fig. 4 and 6, the second locking mechanism includes a second locking member 5 and a second mating member 6, the second locking member 5 is slidably disposed on the lower push rod 2200 in a radial direction of the lower push rod 2200, and the second mating member 6 is fixedly disposed on a side portion of the seat pocket 1100. In this embodiment, the second locking member 5 is a locking plate, a plurality of protruding locking teeth 51 are arranged on the second locking member 5 at intervals in the circumferential direction, and a plurality of locking tooth grooves 61 matched with the shape of the locking teeth 51 are formed on the second fitting member 6, so that the second locking member 5 can be correspondingly inserted into the second fitting member 6 to lock the second locking member. The second locking mechanism further comprises a third resilient member (not shown in the figures) for providing the force needed to slide the second locking member 5 towards the second mating member 6.

In order to unlock the second locking mechanism, the unlocking mechanism further includes a second unlocking slider 8, the second unlocking slider 8 is disposed on the lower push rod 2200 in a manner of being capable of relatively sliding along the axial direction of the lower push rod 2200, and a second unlocking structure which is linked with the second locking member 5 to slide away from the second fitting member 6 when the second unlocking slider 8 slides is disposed between the second unlocking slider 8 and the second locking member 5. The second unlocking structure specifically includes a second unlocking inclined surface 81 disposed on the second unlocking slider 8, and a second matching inclined surface 52 disposed on the second locking member 5, the second unlocking inclined surface 81 and the second matching inclined surface 52 are mutually matched, and respectively extend obliquely outward from top to bottom along the axial direction of the lower push rod 2200, and the second matching inclined surface 52 abuts against the second unlocking inclined surface 81. In this embodiment, the second matching inclined planes 52 have two sets respectively disposed at two sides of the second locking member 5, each set of second matching inclined planes 52 has two parallel sets, and the second unlocking inclined planes 81 also have two sets respectively disposed at two sides of the second unlocking slider 8 in a matching manner, so that the first locking member 3 can be stably driven to slide and unlock by driving the second unlocking slider 8 to slide upwards.

As can be seen from the above, on each of the left and right sides of the push rod frame 2000, the sliding directions of the first unlocking slider 7 and the second unlocking slider 8 when unlocking are the same, and by providing the linkage assembly between the unlocking operation member 1, the first unlocking slider 7, and the second unlocking slider 8, the unlocking of the first locking mechanism and/or the second locking mechanism can be achieved by controlling the sliding position of the unlocking operation member 1.

In particular, with reference to fig. 4 to 6, the linkage assembly comprises a first traction cable 9 and a second traction cable 10, the first traction cable 9 is connected between the unlocking actuator 1 and the first unlocking slider 7, the second traction cable 10 is connected between the first unlocking slider 7 and the second unlocking slider 8, and the first traction cable 9 is connected to the first connection position 9a of the first unlocking slider 7 and the second traction cable 10 is connected to the second connection position 10a of the first unlocking slider 7. Thus, by pressing the unlocking operation member 1, the first unlocking slider 7 and the second unlocking slider 8 can be simultaneously pulled to slide upward.

Referring to fig. 8, the unlocking mechanism further includes a pull member 11, and the pull member 11 is provided in the upper push rod 2100 to be capable of both relative sliding and relative rotation. A sliding shaft 111 is fixedly arranged on the traction member 11, a sliding groove 112 extending along the axial direction of the upper push rod 2100 is arranged on the upper push rod 2100, and the sliding shaft 111 can slide relatively and can be inserted into the sliding groove 112 in a relatively rotating manner. One end of the pulling member 11 is rotatably connected to the unlocking operation member 1 and the other end thereof is connected to the first traction cable 9, respectively on both upper and lower sides of the slide shaft 111. Further, the first traction rope 9 and the traction member 11 are provided with a left group and a right group respectively so as to correspond to the left and right groups of first locking mechanisms. However, in order to unlock the lock smoothly, in this embodiment, the pulling member 11 for unlocking the left first locking mechanism is located on the right side relatively, and the pulling member 11 for unlocking the right first locking mechanism is located on the left side relatively, so as to refer to fig. 8 and 11, when the unlocking operation member 1 slides from the first position to the second position, the two sets of pulling members 11 are pushed to rotate and slide simultaneously, the two sets of pulling members 11 are separated from each other along the sliding slot 112, and further, one end of the two sets of pulling members 11 connected with the first pulling cable 9 is separated from each other, so as to achieve the purpose of simultaneously pulling the two sets of first pulling cables 9 and sliding the first unlocking slider 7 upwards along the upper push rod 2100.

Referring to fig. 4 and 16, in order to improve the smoothness of the sliding and unlocking of the second unlocking slider 8, a traction wheel 91 and a guide wheel 92 are further provided in the push rod 2100 on each side for forming a pulley-block structure with the second traction cable 10. Specifically, along the axial direction of the upper push rod 2100, the guide wheel 92, the second connection position 10a, and the traction wheel 91 are sequentially arranged from top to bottom, and the second traction cable 10 is sequentially wound around the traction wheel 91 and the guide wheel 92 from the second connection position 10a, so that when the first unlocking slider 7 and the second connection position 10a slide upward, the second traction cable 10 can be driven to be pulled upward. In this embodiment, the upper push rod 2100 is further provided with an elastic sleeve 72 capable of sliding and stretching along the axial direction of the upper push rod 2100, the first unlocking slider 7 is partially inserted into the elastic sleeve 72, the traction wheel 91 is rotatably connected to the elastic sleeve 72, and the guide wheel 92 is directly rotatably connected to the upper push rod 2100. So that the guide wheel 92 corresponds to a fixed pulley, the relative position of which to the push-up rod 2100 remains unchanged; the traction wheel 91 is equivalent to a movable pulley and can be arranged in the upper push rod 2100 in a relative sliding manner along with the extension and retraction of the elastic sleeve 72, the pulley block formed by the traction wheel and the elastic sleeve can enable the process of pulling the second traction rope 10 to drive the second unlocking slide block 8 to slide and unlock more labor-saving, and in the axial direction of the lower push rod 2200, the sliding distance of the second unlocking slide block 8 is smaller than that of the first unlocking slide block 7, so that the purpose of asynchronous unlocking of the first locking mechanism and the second locking mechanism can be realized. In another embodiment, the elastic sleeve 72 may not be provided, and the traction wheel 91 and the guide wheel 92 are both rotatably connected to the upper push rod 2100, and both of them are equivalent to fixed pulleys, and can also be linked with the second unlocking slider 8 to slide in the process of sliding the first unlocking slider 7.

The working principle of the stroller in this embodiment is specifically described as follows:

referring to fig. 7 to 10, 16, 18 and 19, when the stroller is in the forward pushing state or the backward pushing state, the unlocking limiting member 2 is located at the blocking position, the unlocking operation member 1 is kept at the first position under the action of the first elastic member, and the first locking mechanism and the second locking mechanism on the left and right sides are both in the locking state. The first locking piece 3 is matched with the first matching piece 4 under the action force of the second elastic piece, and the locking protrusion 31 is inserted into the locking hole 41; the second locking member 5 is disposed to cooperate with the second mating member 6 under the action of the third elastic member, and the plurality of locking teeth 51 are inserted into the plurality of locking tooth grooves 61 in a one-to-one correspondence.

Referring to fig. 11 to 12, when the length of the push rod frame 2000 needs to be adjusted, or the push rod frame 2000 needs to be folded and folded, the unlocking limiting member 2 is kept at the blocking position, the unlocking operating member 1 is pressed upward, so that the unlocking operating member 1 slides to the second position, and due to the blocking of the unlocking limiting member 2, the unlocking operating member 1 does not further slide upward to the third position due to misoperation, at this time, the first locking mechanism is in the unlocking state, and the second locking mechanism is still in the locking state. The unlocking operation member 1 slides upwards to push the pulling member 11 to rotate and slide, so as to pull the first traction cables 9 on the left side and the right side, so that the first unlocking slide block 7 slides upwards for a certain distance along the upper push rod 2100, under the matching action of the first unlocking inclined surface 71 and the first matching inclined surface 32, the first unlocking slide block 7 drives the first locking member 3 to overcome the acting force of the second elastic member and slide away from the first matching member 4, the locking protrusion 31 exits from the locking hole 41, and therefore unlocking of the first locking mechanism is achieved. For the second unlocking slide block 8, although the second unlocking slide block 8 is also driven to slide upwards for a certain distance in the upward sliding process of the first unlocking slide block 7, at this time, the locking teeth 51 are still partially inserted in the locking teeth grooves 61, and the second locking mechanism keeps locking.

Referring to fig. 13 to 14, 17 and 20, when the stroller needs to be used in a reversed manner, the unlocking limiting member 2 slides towards one side along the axial direction of the upper push rod 2100 (leftwards sliding in fig. 13), and is switched to the unlocking position, at this time, the unlocking operating member 1 is pressed again, the unlocking operating member 1 can slide to the third position without being blocked, the pulling member 11 is driven to further move, the second unlocking slider 8 is pulled to slide upwards by the first pulling cable 9 and the second pulling cable 10, under the cooperation action of the second unlocking inclined surface 81 and the second matching inclined surface 52, the second unlocking slider 8 drives the second locking member 5 to slide away from the second matching member 6 against the acting force of the third elastic member, and the locking tooth 51 exits from the locking tooth groove 61, so that the second locking mechanism is unlocked. At this time, since the first unlocking slider 7 and the second unlocking slider 8 slide upward in synchronization, the first locking mechanism is also in the unlocked state.

When the second locking mechanism and the first locking mechanism need to be locked again, the unlocking operation piece 1 only needs to be released, so that the unlocking operation piece is restored to the first position under the action force of the first elastic piece, and the second locking mechanism and the first locking mechanism can be converted into a locking state under the matching action of the second elastic piece and the third elastic piece. When the second locking mechanism does not need to be unlocked, the unlocking limiting part 2 is kept at the blocking position, so that a two-way lock can be formed, and misoperation of the unlocking operation part 1 is prevented.

In conclusion, the child cart of the embodiment ingeniously combines the first locking mechanism and the second locking mechanism required by the reversing cart, and only one set of unlocking structure needs to be arranged, so that sequential unlocking of the two sets of locking mechanisms can be realized, the operation method is greatly simplified, and convenience in use is realized.

The above-mentioned embodiments are merely illustrative of the technical idea and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be covered in the scope of the present invention.

Claims (10)

1. A stroller, characterized in that: the children cart comprises a cart frame body and a push rod frame, the push rod frame comprises an upper push rod and a lower push rod, the upper push rod can be arranged on the lower push rod in a relatively sliding manner along the length extension direction of the lower push rod, the lower end part of the lower push rod can be arranged on the cart frame body in a relatively rotating manner around a first rotating center line, the first rotating center line extends along the width direction of the cart frame body,

a first locking mechanism used for locking the upper push rod and the lower push rod relatively is arranged between the upper push rod and the lower push rod, a second locking mechanism used for locking the lower push rod and the frame main body relatively is arranged between the lower push rod and the frame main body, the first locking mechanism and the second locking mechanism are respectively provided with a locking state and an unlocking state, the child stroller further comprises an unlocking mechanism, the unlocking mechanism comprises an unlocking operation part, the unlocking operation part is movably arranged on the push rod frame, the unlocking operation part is provided with a first position, a second position and a third position on the push rod frame,

when the unlocking operation piece is located at a first position, the first locking mechanism and the second locking mechanism are both in a locking state;

when the unlocking operation piece is located at the second position, the first locking mechanism is in an unlocking state, and the second locking mechanism is in a locking state;

when the unlocking operation piece is located at the third position, the first locking mechanism and the second locking mechanism are both in an unlocking state.

2. The stroller of claim 1, wherein: the unlocking mechanism further comprises an unlocking limiting part, the unlocking limiting part is movably arranged on the push rod frame, the unlocking limiting part is provided with a blocking position and an unlocking position on the push rod frame, when the unlocking limiting part is located at the blocking position, the unlocking limiting part blocks on a motion path of the unlocking operating part, and the unlocking operating part is limited between the first position and the second position; when the unlocking limiting part is located at the unlocking position, the unlocking limiting part leaves the movement path of the unlocking operation part, and the unlocking operation part can move among the first position, the second position and the third position.

3. The stroller of claim 2, wherein: the unlocking operation piece can be arranged on the push rod frame in a relatively sliding mode along a first direction, the unlocking limiting piece can be arranged on the push rod frame in a relatively sliding mode along a second direction, the first direction is parallel to or intersected with the second direction, and the first position, the second position and the third position are sequentially arranged along the first direction; and/or the presence of a gas in the gas,

the unlocking operation part is provided with a pushing part, the unlocking limiting part is provided with a limiting boss, and when the unlocking limiting part is located at a blocking position and the unlocking operation part is located at a second position, the pushing part is abutted against the limiting boss.

4. The stroller of claim 1, wherein: the first locking mechanism comprises a first locking piece and a first matching piece, the first locking piece can be arranged on the upper push rod in a relatively sliding mode, the first matching piece is fixedly arranged on the lower push rod, and the first locking mechanism is in a locking state and is arranged in a matching mode with the first matching piece; when the first locking mechanism is in an unlocked state, the first locking piece is disengaged from the first mating piece;

the second locking mechanism comprises a second locking piece and a second matching piece, the second locking piece can be arranged on the lower push rod in a relatively sliding mode, the second matching piece is fixedly arranged on the frame main body, and the second locking mechanism is in a locking state and is arranged in a matching mode with the second matching piece; and when the second locking mechanism is in an unlocked state, the second locking piece is disengaged from the second mating piece.

5. The stroller of claim 4, wherein: the unlocking mechanism further comprises a first unlocking slide block, the first unlocking slide block can be arranged on the upper push rod in a relatively sliding mode along the axial direction of the upper push rod, the first locking piece can be arranged on the upper push rod in a relatively sliding mode along the radial direction of the upper push rod, and a first unlocking structure which is used for linking the first locking piece to slide when the first unlocking slide block slides is arranged between the first unlocking slide block and the first locking piece;

the unlocking mechanism further comprises a second unlocking sliding block, the second unlocking sliding block can be arranged on the lower push rod in a relatively sliding mode along the axial direction of the lower push rod, a second locking piece can be arranged on the lower push rod in a relatively sliding mode along the radial direction of the lower push rod, and a second unlocking structure which is used for enabling the second unlocking sliding block to be in linkage when sliding is arranged between the second unlocking sliding block and the second locking piece and enables the second locking piece to slide is arranged between the second unlocking sliding block and the second locking piece.

6. The stroller of claim 5, wherein: the first unlocking structure comprises a first unlocking inclined plane arranged on the first unlocking slide block and a first matching inclined plane arranged on the first locking piece, the first unlocking inclined plane and the first matching inclined plane are matched with each other and respectively extend along the axial direction of the upper push rod in an inclined mode, and the first matching inclined plane is abutted against the first unlocking inclined plane;

the second unlocking structure comprises a second unlocking inclined plane and a second matching inclined plane, wherein the second unlocking inclined plane is arranged on the second unlocking sliding block, the second matching inclined plane is arranged on the second locking piece, the second unlocking inclined plane and the second matching inclined plane are matched with each other and respectively extend along the axial direction of the lower push rod in an inclined mode, and the second matching inclined plane is abutted against the second unlocking inclined plane.

7. The stroller of claim 1, wherein: the unlocking mechanism comprises a first unlocking slide block and a second unlocking slide block, wherein the first unlocking slide block can be arranged on the upper push rod in a relative sliding mode along the axial direction of the upper push rod, the second unlocking slide block can be arranged on the lower push rod in a relative sliding mode along the axial direction of the lower push rod, the sliding directions of the first unlocking slide block and the second unlocking slide block are parallel to each other, the unlocking mechanism further comprises a first traction cable and a second traction cable, the unlocking operation piece is arranged on the upper push rod, the first traction cable is connected between the unlocking operation piece and the first unlocking slide block, and the second traction cable is connected between the first unlocking slide block and the second unlocking slide block.

8. The stroller of claim 7, wherein: the unlocking mechanism further comprises a traction piece, the traction piece can be arranged on the upper push rod in a relatively sliding mode and a relatively rotating mode, one end portion of the traction piece is connected with the unlocking operation piece in a rotating mode, and the other end portion of the traction piece is connected with the first traction rope.

9. The stroller of claim 7, wherein: the unlocking mechanism further comprises a traction wheel and a guide wheel, the joint of the second traction cable and the first unlocking slide block and the traction wheel are sequentially arranged from top to bottom along the axial direction of the upper push rod, and the second traction cable is sequentially wound on the traction wheel and the guide wheel from the joint of the second traction cable and the first unlocking slide block.

10. Child stroller according to any of claims 1 to 9, characterized in that: the first locking mechanism and the second locking mechanism are respectively provided with two groups which are respectively arranged at the left side and the right side of the push rod frame, and the unlocking operation piece is used for simultaneously unlocking the two groups of first locking mechanisms and/or the two groups of second locking mechanisms; and/or the presence of a gas in the gas,

the frame main body comprises an upper bracket and a lower bracket, the upper bracket can be arranged on the lower bracket in a relatively rotating way around a second rotating center line, and the second rotating center line extends along the height direction of the frame main body; and/or the presence of a gas in the gas,

the frame main body comprises a seat pocket, and the lower end part of the lower push rod is rotatably connected to the seat pocket.

Images