Baby carriage

Abstract

A baby carriage comprises a front wheel assembly, a rear wheel assembly, a frame, a push rod frame and a control assembly. The frame comprises a front bracket and a rear bracket; a connecting arm extending upwards is arranged at the upper end of a frame, a push rod frame is rotationally connected to the connecting arm, and a sliding groove is formed in the connecting arm in the extending direction of the connecting arm; the control assembly is arranged in the sliding groove of the connecting arm; the control assembly comprises a pressing block, a sliding block, an elastic piece, a first wire and a second wire, one ends of the first wire and the second wire are connected with the front side and the rear side of the sliding block respectively, and the other ends are connected with the front orientation piece and the rear orientation piece respectively. The push rod frame rotates to enable the pressing block to drive the sliding block to move in the sliding groove so as to control the front orientation piece and the rear orientation piece to switch the state of the front wheel assembly and the state of the rear wheel assembly, so that the state switching of the front wheel assembly and the state of the rear wheel assembly is automatically achieved when the push rod frame conducts reversing operation, and daily reversing operation of a user is more convenient. And great convenience is brought to the user.

Description

Technical Field

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

[0002] As an essential travel aid for children, strollers are constantly being optimized to meet the diverse needs of parents and children. However, existing strollers still have some design deficiencies, particularly regarding seat orientation and reversing. Traditional strollers have fixed seat orientations or require parents to remove, reinstall, or rotate the seat to change the orientation, which is cumbersome and complex. Furthermore, the fixed seat orientation limits interaction between children and parents, reducing the enjoyment of travel.

[0003] While many modern strollers feature reversible push rods, the issue of wheel orientation after a change in direction remains a challenge. To ensure proper travel after a change in direction, the front and rear wheels must be unlocked and locked separately. This step not only increases operational complexity for parents but also compromises the stroller's overall usability. To address these issues, see the child stroller disclosed in authorization publication number CN207565661U, which includes a stroller frame having an unfolded state and a folded state. The stroller frame includes a push rod frame, a front bracket, and a rear bracket. The front bracket is provided with a front wheel assembly at the bottom, and the rear bracket is provided with a rear wheel assembly at the bottom. The front wheel orientation assembly and the rear wheel orientation assembly are provided on the stroller frame. The upper end of the front bracket, the upper end of the rear bracket, and the lower end of the push rod frame are rotatably connected to each other via a rotating joint. The rotating joint is provided with a drive slider that is driven to slide when the push rod frame rotates. The drive slider is slidably provided on the upper end of the front bracket or the upper end of the rear bracket, so that when the push rod changes direction, the drive slider is automatically driven to switch the front wheel orientation assembly and the rear wheel orientation assembly between a locked and unlocked state. The above technical solution places the relevant control components of the drive slider at the rotating joint, which makes the structure of the rotating joint complex and difficult to maintain. At the same time, since the relevant control components have high requirements for precision and stability, their manufacturing costs are high, and the failure rate is high, which makes maintenance more difficult. Once a failure occurs, it may affect the overall performance of the cart. Utility Model Content

[0004] In view of the above problems, the present application provides a child stroller to solve the problem that the reversing and wheel directional linkage structures of existing child strollers are complex and difficult to maintain.

[0005] To achieve the above-mentioned object, the present invention provides a child stroller, which comprises:

[0006] front wheel assembly;

[0007] rear wheel assembly;

[0008] The frame includes a front bracket and a rear bracket; the bottom of the front bracket is rotatably connected to the front wheel assembly, and a front directional member is provided between the front bracket and the front wheel assembly to adjust the front wheel assembly to a freely steerable universal state or a steering locked state; the bottom of the rear bracket is rotatably connected to the rear wheel assembly, and a rear directional member is provided between the rear bracket and the rear wheel assembly to adjust the rear wheel assembly to a freely steerable universal state or a steering locked state; the upper end of the frame has an upwardly extending connecting arm, and the connecting arm has a sliding groove along its extending direction;

[0009] A push rod frame is rotatably connected to the connecting arm;

[0010] The control component includes a pressure block, a slider, an elastic member, a first wire and a second wire; the slider is slidably connected in the slide groove, the pressure block rotates with the rotation of the push rod frame, and abuts against one end of the slider to drive the slider to slide in the slide groove; the elastic member is arranged at the bottom of the slide groove and abuts against the other end of the slider; one end of the first wire is connected to the front side of the slider and moves with the slider, and the other end is connected to the front directing member to switch the state of the front wheel assembly; one end of the second wire is connected to the rear side of the slider and moves with the slider, and the other end is connected to the rear directing member to switch the state of the rear wheel assembly.

[0011] Furthermore, the other end of the first wire passes through the lower front portion of the slide slot and is connected to the front directing member; the other end of the second wire passes through the upper rear portion of the slide slot and is connected to the rear directing member.

[0012] Furthermore, the control component has three working positions: the push rod frame rotates so that the slider is in the first working position of the slide, the first wire controls the front directing member to make the front wheel assembly in a universal state, and the second wire controls the rear directing member to make the rear wheel assembly in a locked state; the push rod frame rotates so that the slider is in the second working position of the slide, the first wire controls the front directing member to make the front wheel assembly in a universal state, and the second wire controls the rear directing member to make the rear wheel assembly in a universal state; the push rod frame rotates so that the slider is in the third working position of the slide, the first wire controls the front directing member to make the front wheel assembly in a locked state, and the second wire controls the rear directing member to make the rear wheel assembly in a universal state.

[0013] Furthermore, the push rod frame is rotatably connected to the connecting arm through a rotating shaft; the slider includes a slider body and a protrusion protruding upward from the slider body; when the slider body abuts the rotating shaft, the slider is in the first working position of the slide groove, and the protrusion is located on one side of the rotating shaft; the pressure block abuts the protrusion to make the slider body move away from the rotating shaft, and the slider is in the second working position or the third working position of the slide groove.

[0014] Furthermore, the pressing block is provided with an inclined surface corresponding to the protruding portion, so that the sliding block can switch between the second working position and the third working position.

[0015] Furthermore, the slider or the slide groove is provided with a corresponding groove along the moving track of the first wire rod; and / or the slider or the slide groove is provided with a corresponding groove along the moving track of the second wire rod.

[0016] Furthermore, the connecting arm is provided with a wire post at the upper rear side of the corresponding slide slot, and the other end of the second wire passes through the upper rear side of the slide slot, bypasses the wire post and is connected to the rear directing member.

[0017] Furthermore, a roller is provided on the wire column, and the other end of the second wire passes through the upper rear portion of the slide groove and is connected to the rear directing member through the roller.

[0018] Furthermore, the connecting arm is provided with a wire structure at the lower front portion of the corresponding slide slot, and the other end of the first wire passes through the lower front portion of the slide slot and is connected to the front directing member through the wire structure.

[0019] Furthermore, an abutting groove is provided at the bottom of the sliding block, one end of the elastic member is connected to the abutting groove, and the other end is connected to the bottom of the sliding groove.

[0020] Furthermore, one side of the slider is provided with a corresponding opening and a mounting post at a connection point corresponding to the first wire and / or the second wire, and one end of the first wire and / or the second wire is rotatably connected to the corresponding opening through the mounting post.

[0021] Furthermore, a first channel is provided in the front bracket along the moving track of the first wire; and / or a second channel is provided in the rear bracket along the moving track of the second wire.

[0022] Different from the prior art, in the above technical solution, an upwardly extending connecting arm is provided at the upper end of the vehicle frame, the push rod frame is rotatably connected to the connecting arm, and a slide groove is provided on the connecting arm along its extending direction; the control component is provided in the slide groove of the connecting arm, which has a simple structure and reduces the high precision requirement of the control component; and the control component is in a relatively independent position, which reduces the friction and interference with other components, thereby reducing the probability of failure, and also reduces the difficulty and frequency of maintenance; the control component includes a pressure block, a slider, an elastic member and a first wire and a second wire, wherein the first wire and the second wire are respectively connected to the front and rear sides of the slider, and the slide groove provides a The stable moving path enables the slider to maintain high precision and stability during movement, thereby ensuring the accuracy of the control of the front and rear directing members by the first and second wires; the setting of the elastic member enables the slider to be constrained by the elastic member and to automatically reset when not acted upon by external forces, so that the entire control process is stable and reliable; the rotation of the push rod frame is utilized to enable the pressure block to drive the slider to move in the slide groove, thereby controlling the front and rear directing members to switch the states of the front and rear wheel assemblies, so that the push rod frame can automatically switch the states of the front and rear wheel assemblies during the reversing operation, which is more convenient for the user's daily reversing operation and brings great convenience to the user.

[0023] The above-mentioned records related to the content of the utility model are only an overview of the technical solution of this application. In order to enable ordinary technicians in this field to understand the technical solution of this application more clearly, and then implement it according to the text of the specification and the contents recorded in the drawings, and to make the above-mentioned purposes and other purposes, features and advantages of this application easier to understand, the following is an explanation in combination with the specific implementation methods and drawings of this application. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings are only used to illustrate the principles, implementation methods, applications, characteristics and effects of the specific embodiments of the present invention and other related contents, and are not to be considered as limiting the present application.

[0025] In the drawings of the specification:

[0026] Figure 1 This is a schematic diagram of the child stroller in the first working position according to the specific embodiment;

[0027] Figure 2 for Figure 1 A in the middle is an enlarged schematic diagram;

[0028] Figure 3 for Figure 1 The enlarged schematic diagram of point B in the middle;

[0029] Figure 4 for Figure 1 Enlarged schematic diagram at point C in the middle;

[0030] Figure 5 This is a schematic diagram of the state of the child stroller according to the specific embodiment when it is in the second working position;

[0031] Figure 6 for Figure 5 The enlarged schematic diagram of point D in the middle;

[0032] Figure 7 This is a schematic diagram of the child stroller according to the specific embodiment when it is in the third working position;

[0033] Figure 8 for Figure 7 The enlarged schematic diagram at E in the middle;

[0034] Figure 9 for Figure 7 The enlarged schematic diagram at F in the middle;

[0035] Figure 10 for Figure 7 Enlarged schematic diagram at point G in the middle.

[0036] The reference numerals in the above drawings are described as follows:

[0037] 10. Push rod rack;

[0038] 20. Front bracket;

[0039] 201, first channel; 202, front directional member;

[0040] 30. Front wheel assembly;

[0041] 301, front directional slot;

[0042] 40. Rear bracket;

[0043] 401, second channel; 402, rear directional member;

[0044] 50. Rear wheel assembly;

[0045] 501, rear directional slot;

[0046] 60. Control components;

[0047] 601, briquetting;

[0048] 602, slider;

[0049] 6021, slider body; 6022, raised portion; 6023, opening; 6024, mounting post;

[0050] 603, elastic member;

[0051] 604, first wire;

[0052] 605, shaft;

[0053] 606, second wire;

[0054] 607, conductor column;

[0055] 608, conductor structure;

[0056] 70. Connecting arm;

[0057] 701. Chute. DETAILED DESCRIPTION

[0058] In order to explain in detail the possible application scenarios, technical principles, specific solutions that can be implemented, and the purpose and effects of this application, the following is a detailed description of the specific embodiments listed in conjunction with the accompanying drawings. The embodiments described herein are only used to more clearly illustrate the technical solutions of this application and are therefore only examples and are not intended to limit the scope of protection of this application.

[0059] References to "embodiments" herein mean that the specific features, structures, or characteristics described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the word "embodiment" in various places in the specification does not necessarily refer to the same embodiment, nor does it particularly limit its independence or relevance to other embodiments. In principle, in this application, as long as there are no technical contradictions or conflicts, the various technical features mentioned in the embodiments can be combined in any manner to form a corresponding implementable technical solution.

[0060] Unless otherwise defined, the technical terms used herein have the same meanings as those generally understood by those skilled in the art to which this application belongs; the use of relevant terms herein is only for describing specific embodiments and is not intended to limit this application.

[0061] In the description of this application, the term "and / or" is used to describe a logical relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A exists, B exists, and both A and B exist. In addition, the character " / " in this document generally indicates that the objects before and after are in a logical "or" relationship.

[0062] In this application, terms such as "first" and "second" are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual quantity, priority or sequence relationship between these entities or operations.

[0063] Without further limitations, in this application, the words "include", "comprise", "have" or other similar open-ended expressions used in sentences are intended to cover non-exclusive inclusion. These expressions do not exclude the presence of additional elements in the process, method or product that includes the elements, so that the process, method or product that includes a series of elements may include not only those defined elements, but also other elements that are not explicitly listed, or also include elements inherent to such process, method or product.

[0064] Consistent with the understanding in the Examination Guidelines, in this application, expressions such as "greater than," "less than," and "exceed" are understood to exclude the number itself; expressions such as "above," "below," and "within" are understood to include the number itself. Furthermore, in the description of the embodiments of this application, "multiple" means more than two (including two), and similar expressions related to "multiple" are also understood in this manner, such as "multiple groups," "multiple times," etc., unless otherwise specifically defined.

[0065] In the description of the embodiments of the present application, the space-related expressions used, such as "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "vertical", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicate the orientation or position relationship based on the orientation or position relationship shown in the specific embodiments or drawings, and are only for the convenience of describing the specific embodiments of the present application or facilitating the reader's understanding, and do not indicate or imply that the device or component referred to must have a specific position, a specific orientation, or be constructed or operated in a specific orientation. Therefore, it should not be understood as a limitation on the embodiments of the present application.

[0066] Unless otherwise expressly specified or limited, in the description of the embodiments of the present application, the terms "installed", "connected", "connected", "fixed", "set", etc. used should be understood in a broad sense. For example, the "connection" can be a fixed connection, a detachable connection, or an integrated setting; it can be a direct connection, or an indirect connection through an intermediate medium; it can be a relationship in which two components are combined together, or an interaction relationship between two components, or a communication between two structures. For those skilled in the art of the present application, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0067] See also Figures 1 to 10As shown, this embodiment provides a child stroller, including a front wheel assembly 30, a rear wheel assembly 50, a frame, a push rod frame 10 and a control assembly 60, which is mainly connected to the connecting arm 70 by rotating the push rod frame 10 at the upper end of the frame, and a slide groove 701 is provided on the connecting arm 70 along its extension direction; the control assembly 60 is arranged in the slide groove 701 of the connecting arm 70, which has a simple structure and reduces the high precision requirement of the control assembly 60; and the control assembly 60 is in a relatively independent position, which reduces the friction and interference with other components, thereby reducing the probability of failure, and also reduces the difficulty and frequency of maintenance; the control assembly 60 includes a pressing block 601, a slider 602, an elastic member 603 and a first wire 604 and a second wire 606, wherein the first wire 604 and the second wire 606 are respectively connected to the front side of the slider 602 On the other hand, the rear side of the vehicle body 602 is provided with a stable movement path, and the slide groove 701 provides a stable movement path for the slider 602, so that the slider 602 can maintain high precision and stability during the movement, thereby ensuring the accuracy of the control of the front directing member 202 and the rear directing member 402 by the first wire 604 and the second wire 606; the setting of the elastic member 603 makes the slider 602 constrained by the elastic member 603 and can automatically reset when not affected by external force, so that the entire control process is stable and reliable; the rotation of the push rod frame 10 is used to make the pressure block 601 drive the slider 602 to move in the slide groove 701, thereby controlling the front directing member 202 and the rear directing member 402 to switch the state of the front wheel assembly 30 and the rear wheel assembly 50, so that the push rod frame 10 can automatically switch the state of the front wheel assembly 30 and the rear wheel assembly 50 during the reversing operation, which is more convenient for the user's daily reversing operation and brings great convenience to the user.

[0068] Combine Figures 1 to 10 The embodiment shown is described below in detail. The stroller mainly includes a front wheel assembly 30, a rear wheel assembly 50, a frame, a push rod frame 10 and a control assembly 60.

[0069] The front wheel assembly 30 mainly includes two front wheels arranged on the left and right sides; the specific structure of each front wheel is not limited in this embodiment. The front wheel assembly 30 has a universal state in which it can be freely steered or a locked state in which the steering is locked.

[0070] The rear wheel assembly 50 primarily comprises two rear wheels, one on the left and one on the right. The specific structure of each rear wheel is not limited in this embodiment. The rear wheel assembly 50 also has a swivel position for free steering and a locked position for steering lock. When the stroller is in use, the rear wheel assembly 50 is spaced apart from the front wheel assembly 30. The terms "front," "rear," "left," and "right" herein are defined with reference to the stroller's in-use state.

[0071] The frame includes a front bracket 20 and a rear bracket 40; the bottom of the front bracket 20 is rotatably connected to the front wheel assembly 30, and a front directing member 202 is provided between the front bracket 20 and the front wheel assembly 30 to adjust the front wheel assembly 30 to a freely steerable universal state or a steering locked state; the bottom of the rear bracket 40 is rotatably connected to the rear wheel assembly 50, and a rear directing member 402 is provided between the rear bracket 40 and the rear wheel assembly 50 to adjust the rear wheel assembly 50 to a freely steerable universal state or a steering locked state; the upper end of the frame has an upwardly extending connecting arm 70, and the connecting arm 70 has a sliding groove 701 along its extending direction;

[0072] The front bracket 20 and the rear bracket 40 in the above-mentioned frame can be fixedly connected to ensure the rigidity and stability of the frame as a whole; the front bracket 20 and the rear bracket 40 can also be rotatably connected so that the front bracket 20 and the rear bracket 40 can be relatively unfolded or folded, giving the frame greater flexibility and adaptability, making it easier to carry and store the stroller. The upper end of the above-mentioned frame has an upwardly extending connecting arm 70, which can refer to the connecting arm 70 extending upward from the front bracket 20, or the connecting arm 70 extending upward from the rear bracket 40; when the front bracket 20 and the rear bracket 40 are fixedly connected, it can also be the connecting arm 70 that extends upward from both the front bracket 20 and the rear bracket 40. The above-mentioned slide groove 701 provides a sliding path for the slider 602, which can be a groove with a certain length and width; preferably, the shape and size of the slider 602 match to ensure that the slider 602 can slide smoothly and stably in the slide groove 701.

[0073] The push rod frame 10 is rotatably connected to the connecting arm 70; the rotation of the push rod frame 10 can be achieved manually, electrically or in other ways.

[0074] The control component 60 includes a pressure block 601, a slider 602, an elastic member 603, a first wire 604 and a second wire 606; the slider 602 is slidably connected in the slide groove 701, and the pressure block 601 rotates with the rotation of the push rod frame 10, and abuts against one end of the slider 602 to drive the slider 602 to slide in the slide groove 701; the elastic member 603 is arranged at the bottom of the slide groove 701 and abuts against the other end of the slider 602; one end of the first wire 604 is connected to the front side of the slider 602 and moves with the slider 602, and the other end is connected to the front directing member 202 to switch the state of the front wheel assembly 30; one end of the second wire 606 is connected to the rear side of the slider 602 and moves with the slider 602, and the other end is connected to the rear directing member 402 to switch the state of the rear wheel assembly 50.

[0075] The pressure block 601 in the control assembly 60 rotates with the rotation of the push rod frame 10, that is, there is a connection between the push rod frame 10 and the pressure block 601, so that when the push rod frame 10 rotates, the pressure block 601 can also rotate accordingly. The connection between the two can be a direct connection, that is, the pressure block 601 can be directly fixed to the push rod frame 10 by means such as welding, riveting, bolting, etc. When the push rod frame 10 rotates, the pressure block 601 will also rotate along with it due to its fixed connection with the push rod frame 10. The rotation angle of the pressure block 601 is consistent with the rotation angle of the push rod frame 10, ensuring that the slider 602 can be accurately pushed to slide in the slide groove 701. Of course, it can also be an indirect connection, that is, the pressure block 601 and the push rod frame 10 are connected by a transmission mechanism such as a connecting rod or gears to enable the pressure block 601 to rotate with the push rod frame 10.

[0076] The front directional member 202 and the rear directional member 402 are used to adjust the corresponding front wheel assembly 30 and rear wheel assembly 50 to a freely steerable universal state or a locked state with a steering lock. In some embodiments, the front wheel assembly 30 is provided with a front directional slot 301 for the front directional member 202 to be cooperatively inserted, and the rear wheel assembly 50 is provided with a rear directional slot 501 for the rear directional member 402 to be cooperatively inserted. The front directional member 202 is inserted into or out of the front directional slot 301 to place the front wheel assembly 30 in a locked state with a steering lock or a freely steerable universal state; the rear directional member 402 is inserted into or out of the rear directional slot 501 to place the rear wheel assembly 50 in a locked state with a steering lock or a freely steerable universal state. The following is a detailed description of the working principle of using the rotation of the push rod frame 10 to cause the pressure block 601 to drive the slider 602 to move in the slide groove 701, and the first wire 604 and the second wire 606 to control the front directing member 202 and the rear directing member 402 along with the movement of the slider 602 to switch the states of the front wheel assembly 30 and the rear wheel assembly 50 based on this embodiment:

[0077] When the push rod frame 10 rotates, the pressure block 601 rotates with the rotation of the push rod frame 10 to drive the slider 602 to move in the slide groove 701, thereby causing the first wire 604 and the second wire 606 connected to the slider 602 to move with the slider 602. The first wire 604 moves with the slider 602 to control the front directing member 202 to insert into or disengage from the front directing slot 301 so that the front wheel assembly 30 is in a locked state of steering lock or a freely steerable universal state; the second wire 606 moves with the slider 602 to control the rear directing member 402 to insert into or disengage from the rear directing slot 501 so that the rear wheel assembly 50 is in a locked state of steering lock or a freely steerable universal state.

[0078] The first and second wires move with the movement of the slider 602, thereby controlling the states of the front and rear wheel assemblies, respectively. Based on different needs, the movement trajectories of the first and second wires 604, 606 can be appropriately set to control the front and rear directional members 202, 402, and switch the states of the front and rear wheel assemblies 30, 50, respectively.

[0079] In some embodiments, the other end of the first wire 604 passes through the lower front portion of the chute 701 and is connected to the front directing member 202; the other end of the second wire 606 passes through the upper rear portion of the chute 701 and is connected to the rear directing member 402. Under this connection method, the movement trajectories of the first wire 604 and the second wire 606 are different, and they can respectively control the states of the front wheel assembly 30 and the rear wheel assembly 50, thereby achieving different states of the front wheel assembly 30 and the rear wheel assembly 50 during the reversing operation of the push rod frame 10. Specifically, when the slider 602 moves within the chute 701, the other end of the first wire 604 moves in the direction of movement of the slider 602, controlling the front directing member 202 to switch the state of the front wheel assembly 30. At this time, the other end of the second wire 606 moves in the opposite direction of the movement of the slider 602, controlling the rear directing member 402 to switch the state of the rear wheel assembly 50.

[0080] Based on the above embodiment, in some embodiments, the control assembly 60 can have two working positions, that is, when the push rod frame 10 rotates to make the slider 602 in the first working position of the slide groove 701, the first wire 604 controls the front orientation member 202 to make the front wheel assembly 30 in a universal state, and the second wire 606 controls the rear orientation member 402 to make the rear wheel assembly 50 in a locked state. At this time, the state of the child stroller is as follows: Figures 1 to 4 As shown; when the push rod frame 10 rotates so that the slider 602 is in the second working position of the slide groove 701, the first wire 604 controls the front directional member 202 to lock the front wheel assembly 30, and the second wire 606 controls the rear directional member 402 to make the rear wheel assembly 50 universal. At this time, the state of the child stroller is as follows Figures 7 to 10 shown.

[0081] Based on the above embodiment, in some embodiments, the control assembly 60 has three working positions: the push rod frame 10 rotates to make the slider 602 in the first working position of the slide groove 701, the first wire 604 controls the front directional member 202 to make the front wheel assembly 30 in a universal state, and the second wire 606 controls the rear directional member 402 to make the rear wheel assembly 50 in a locked state. At this time, the state of the child stroller is as follows: Figures 1 to 4 As shown; the push rod frame 10 rotates so that the slider 602 is in the second working position of the slide groove 701, the first wire 604 controls the front directional member 202 to make the front wheel assembly 30 in a universal state, and the second wire 606 controls the rear directional member 402 to make the rear wheel assembly 50 in a universal state. At this time, the state of the child stroller is as shown Figure 3 、 Figure 5 、 Figure 6 、 Figure 10 As shown; the push rod frame 10 rotates so that the slider 602 is in the third working position of the slide groove 701, the first wire 604 controls the front directional member 202 to lock the front wheel assembly 30, and the second wire 606 controls the rear directional member 402 to make the rear wheel assembly 50 universal. At this time, the state of the child stroller is as shown Figures 7 to 10 shown.

[0082] The control assembly 60 mainly switches the state of the front wheel assembly 30 and the rear wheel assembly 50 by placing the slider 602 in different working positions of the slide groove 701. The following further describes the three working positions of the control assembly 60. In an embodiment not shown, in the initial state of the elastic member 603, the position of the slider 602 in the slide groove 701 is the first working position, and the position where the pressure block 601 abuts the slider 602 to cause the slider 602 to move in the slide groove 701 and the elastic member 603 is in a deformed state is the second working position or the third working position of the slide groove 701. Figure 2 、 Figure 6 、 Figure 8 As shown, in some embodiments, the push rod frame 10 is rotatably connected to the connecting arm 70 via a rotating shaft 605; the slider 602 includes a slider body 6021 and a protrusion 6022 protruding upward from the slider body 6021; when the slider body 6021 abuts the rotating shaft 605, the slider 602 is in the first working position of the slide groove 701, and the protrusion 6022 is located on one side of the rotating shaft 605; the pressing block 601 abuts the protrusion 6022 to move the slider body 6021 away from the rotating shaft 605, and the slider 602 is in the second working position or the third working position of the slide groove 701. The switching between the second working position and the third working position can be achieved by providing an inclined surface on the pressing block 601, that is, the pressing block 601 is provided with an inclined surface corresponding to the protrusion 6022, so that the slider 602 can switch between the second working position and the third working position. When the pressure block 601 pushes the slider 602, the inclined surface provides a gradually increasing thrust, thereby ensuring a smooth transition of the slider 602 from the second working position to the third working position (or vice versa). This prevents the slider 602 from jumping or becoming unstable due to sudden application of large forces, ensuring the stability and reliability of the switching process.

[0083] One end of the above-mentioned first wire 604 is connected to the front side of the slider 602. In order to make the first wire 604 move along the moving trajectory and prevent interference or entanglement, a corresponding wire groove can be provided on the slider 602 or the slide 701 along the moving trajectory of the first wire 604; that is, the wire groove can be provided on the slider 602, or can be provided in the slide 701, or grooves can be respectively opened on the corresponding sides of the slider 602 and the slide 701, and the two grooves are spliced ​​together to form the wire groove; similarly, one end of the above-mentioned second wire 606 is connected to the rear side of the slider 602. In order to make the second wire 606 move along the moving trajectory and prevent interference or entanglement, a corresponding wire groove can be provided on the slider 602 or the slide 701 along the moving trajectory of the second wire 606; that is, the wire groove can be provided on the slider 602, or can be provided in the slide 701, or grooves can be respectively opened on the corresponding sides of the slider 602 and the slide 701, and the two grooves are spliced ​​together to form the wire groove. The first wire 604 and the second wire 606 move in corresponding wire grooves, preventing the first wire 604 and the second wire 606 from interfering with or being entangled with each other or with other components, thereby reducing mechanical failures caused by interference or entanglement problems; at the same time, the overall layout of the mechanical system can be optimized, making the connection between the various components more compact and reasonable.

[0084] See also Figure 2 、 Figure 6 、 Figure 8 As shown, the other end of the second wire 606 passes through the upper rear portion of the chute 701 and is connected to the rear directing member 402. In order to prevent the second wire 606 from excessive wear at the opening 6023 at the upper rear portion of the chute 701, a wire post 607 can be provided at the upper rear portion of the chute 701 corresponding to the connecting arm 70. The other end of the second wire 606 passes through the upper rear portion of the chute 701, bypasses the wire post 607 and is connected to the rear directing member 402. Through the guidance of the wire post 607, the second wire 606 can avoid direct contact with the opening 6023 at the upper rear portion of the chute 701, reducing the wear of the second wire 606 during movement and extending the service life of the cable. Of course, in order to further reduce the wear of the second wire 606, a roller can also be provided on the wire post 607. The other end of the second wire 606 passes through the upper rear portion of the chute 701 and is connected to the rear directing member 402 via the roller. The roller converts the friction between the second wire 606 and the wire post 607 during movement from sliding friction to rolling friction, significantly reducing the wear of the second wire 606 and extending the service life of the second wire 606; at the same time, the roller can smoothly guide the movement of the second wire 606, reducing the resistance and jamming of the second wire 606 during movement, and improving the smoothness and stability of the movement of the second wire 606.

[0085] Similarly, the connecting arm 70 may also be provided with a wire structure 608 at the lower front portion of the corresponding chute 701. The other end of the first wire 604 passes through the lower front portion of the chute 701 and is connected to the front directing member 202 through the wire structure 608. The wire structure 608 may be selected in a suitable shape and type according to actual application requirements. For example, a wire channel (such as a wire channel) for guiding the movement trajectory of the first wire 604 may be provided. Figure 2 、 Figure 6 、 Figure 8 as shown) or a wire post 607 or roller to reduce wear.

[0086] The elastic member 603 is provided at the bottom of the chute 701 and abuts against the other end of the slider 602, so that the slider 602 is constrained by the elastic member 603 and can automatically reset when no external force is applied, so that the control process of the control assembly 60 is stable and reliable. In order to further ensure the stable connection between the elastic member 603 and the slider 602, the elastic member 603 is prevented from falling off or misaligned during the movement of the slider 602. In an embodiment not shown, an abutment groove is provided at the bottom of the slider 602, one end of the elastic member 603 is connected to the abutment groove, and the other end is connected to the bottom of the chute 701. In some embodiments, an abutment groove is provided at the bottom of the chute 701, one end of the elastic member 603 is provided in the abutment groove, and the other end abuts against the other end of the slider 602.

[0087] This allows the slider 602 to more reliably return to its initial position after being acted upon by an external force, thereby improving the stability and reliability of the control assembly 60. The elastic member 603 may be a spring, a rubber product, or an elastomer made of a polymer material such as polyurethane or silicone rubber.

[0088] One end of the first wire 604 is connected to the front side of the slider 602 and moves with the slider 602 to switch the state of the front wheel assembly 30. In some embodiments, one end of the first wire 604 is directly connected to the slider 602; in some embodiments, one end of the first wire 604 is rotationally connected to the slider 602; since the position of the first wire 604 changes during the sliding movement in the slide 701, the direction of the first wire 604 also changes accordingly. By rotationally connecting one end of the first wire 604 to the slider 602, the direction of the first wire 604 can be flexibly adjusted, ensuring that the first wire 604 will not be excessively bent or pulled during the movement of the slider 602, thereby reducing the risk of wear and damage to the first wire 604. For details, see Figure 2 、 Figure 6 、 Figure 8As shown, one side of the slider 602 is provided with a corresponding opening 6023 and a mounting post 6024 at the connection point corresponding to the first wire 604. One end of the first wire 604 is rotatably connected to the corresponding opening 6023 via the mounting post 6024. If a corresponding wire groove is provided along the movement trajectory of the first wire 604 on the slider 602 or the chute 701, preferably the wire groove leads to the corresponding opening 6023, it will help optimize the overall layout of the equipment and improve space utilization. Similarly, one end of the second wire 606 is connected to the rear side of the slider 602 and moves with the slider 602 to switch the state of the rear wheel assembly 50. In some embodiments, one end of the second wire 606 is directly connected to the slider 602; in some embodiments, one end of the second wire 606 is rotatably connected to the slider 602; as the second wire 606 moves in the slide groove 701, the position of the second wire 606 also changes, thereby causing the direction of the second wire 606 to change. By rotatably connecting one end of the second wire 606 to the slider 602, the direction of the second wire 606 can be flexibly adjusted, ensuring that the second wire 606 will not be excessively bent or pulled during the movement of the slider 602, thereby reducing the risk of wear and damage to the second wire 606. For details, see Figure 2 、 Figure 6 、 Figure 8 As shown, one side of the slider 602 is provided with a corresponding opening 6023 and a mounting post 6024 at the connection point corresponding to the second wire 606. One end of the second wire 606 is rotatably connected to the corresponding opening 6023 via the mounting post 6024. If a corresponding wire groove is provided along the movement trajectory of the second wire 606 on the slider 602 or the chute 701, preferably the wire groove leads to the corresponding opening 6023, it helps to optimize the overall layout of the equipment and improve space utilization.

[0089] The other end of the first wire 604 is connected to the front directional member 202 to switch the state of the front wheel assembly 30. In some embodiments, part of the first wire 604 can be arranged outside the front bracket 20 to flexibly adapt to different wiring requirements and simplify the maintenance process. Figure 1 、 Figure 5 、 Figure 7As shown, in some embodiments, a first channel 201 is provided along the moving track of the first wire 604 in the front bracket 20, and the other end of the first wire 604 is connected to the front directing member 202 along the first channel 201; the first channel 201 acts as a barrier. By placing the first wire 604 in the first channel 201, the first wire 604 can be effectively protected from interference and damage by external factors, preventing potential risks such as mechanical damage and corrosion, thereby extending the service life of the first wire 604. At the same time, the first wire 604 is cleverly hidden so that it is not directly exposed to the user's sight, making the appearance of the child stroller more simple and beautiful. Similarly, the other end of the second wire 606 is connected to the front directing member 202 to switch the state of the rear wheel assembly 50. In some embodiments, part of the second wire 606 can be arranged outside the rear bracket 40 to flexibly adapt to different wiring requirements and simplify the maintenance process. See Figure 1 、 Figure 5 、 Figure 7 As shown, in some embodiments, a second channel 401 is provided within the rear support 40 along the movement trajectory of the second wire 606. The other end of the second wire 606 is connected to the rear orienting member 402 along the second channel 401. The second channel 401 acts as a barrier. By placing the second wire 606 within the second channel 401, the second wire 606 can be effectively protected from interference and damage by external factors, preventing potential risks such as mechanical damage and corrosion, thereby extending the service life of the second wire 606. At the same time, the second wire 606 is cleverly hidden from the user's view, making the stroller more concise and beautiful. At the same time, by providing the first channel 201 and the second channel 401 in the front support 20 and the rear support 40, respectively, the first wire 604 and the second wire 606 can be accurately guided along the predetermined trajectory, optimizing the layout and improving space utilization, and avoiding the disorder and mutual interference of the wires. The first wire 604 and the second wire 606 may be steel wires, such as carbon steel wire (including low carbon steel, medium carbon steel, high carbon steel, etc.), alloy steel wire, etc.

[0090] Based on the above description, when the stroller of the present embodiment is in use, the push rod frame 10 is rotated to rotate the pressing block 601 along with the rotation of the push rod frame 10, thereby driving the slider 602 to move in the slide groove 701, thereby causing the first wire 604 and the second wire 606 connected to the slider 602 to move along with the slider 602; the first wire 604 moves along with the slider 602 to control the front directing member 202 to switch the front wheel assembly 30 to a locked state of steering lock or a freely steerable universal state; the second wire 606 moves along with the slider 602 to control the rear directing member 4 02 By switching the rear wheel assembly 50 between a locked state of steering lock or a freely steerable universal state, the push rod frame 10 can automatically switch the states of the front wheel assembly 30 and the rear wheel assembly 50 during the reversing operation, which is more convenient for the user's daily reversing operation and brings great convenience to the user. The control assembly 60 has a simple structure and low precision requirements for the control assembly 60, which is easy to process and assemble. The control assembly 60 is in a relatively independent position, which reduces friction and interference with other components, thereby reducing the probability of failure and also reducing the difficulty and frequency of maintenance.

[0091] Finally, it should be noted that although the above embodiments have been described in the specification and drawings of this application, this does not limit the scope of patent protection of this application. All technical solutions generated by replacing or modifying equivalent structures or equivalent processes based on the essential concepts of this application using the contents recorded in the specification and drawings of this application, as well as directly or indirectly implementing the technical solutions of the above embodiments in other related technical fields, are included in the scope of patent protection of this application.

Claims

1. A child stroller, characterized in that: include: front wheel assembly; rear wheel assembly; The frame includes a front bracket and a rear bracket; the bottom of the front bracket is rotatably connected to the front wheel assembly, and a front directional member is provided between the front bracket and the front wheel assembly to adjust the front wheel assembly to a freely steerable universal state or a steering locked state; the bottom of the rear bracket is rotatably connected to the rear wheel assembly, and a rear directional member is provided between the rear bracket and the rear wheel assembly to adjust the rear wheel assembly to a freely steerable universal state or a steering locked state; the upper end of the frame has an upwardly extending connecting arm, and the connecting arm has a sliding groove along its extending direction; A push rod frame is rotatably connected to the connecting arm; The control component includes a pressure block, a slider, an elastic member, a first wire and a second wire; the slider is slidably connected in the slide groove, the pressure block rotates with the rotation of the push rod frame, and abuts against one end of the slider to drive the slider to slide in the slide groove; the elastic member is arranged at the bottom of the slide groove and abuts against the other end of the slider; one end of the first wire is connected to the front side of the slider and moves with the slider, and the other end is connected to the front directing member to switch the state of the front wheel assembly; one end of the second wire is connected to the rear side of the slider and moves with the slider, and the other end is connected to the rear directing member to switch the state of the rear wheel assembly.

2. The child stroller according to claim 1, characterized in that: The other end of the first wire passes through the lower front portion of the slide slot and is connected to the front directing piece; the other end of the second wire passes through the upper rear portion of the slide slot and is connected to the rear directing piece.

3. The child stroller according to claim 2, characterized in that: The control component has three working positions: the push rod frame rotates so that the slider is in the first working position of the slide slot, the first wire controls the front directing piece to make the front wheel assembly in a universal state, and the second wire controls the rear directing piece to make the rear wheel assembly in a locked state; the push rod frame rotates so that the slider is in the second working position of the slide slot, the first wire controls the front directing piece to make the front wheel assembly in a universal state, and the second wire controls the rear directing piece to make the rear wheel assembly in a universal state; the push rod frame rotates so that the slider is in the third working position of the slide slot, the first wire controls the front directing piece to make the front wheel assembly in a locked state, and the second wire controls the rear directing piece to make the rear wheel assembly in a universal state.

4. The child stroller according to claim 3, characterized in that: The push rod frame is rotatably connected to the connecting arm via a rotating shaft; the slider includes a slider body and a protrusion protruding upward from the slider body; when the slider body abuts the rotating shaft, the slider is in the first working position of the slide groove, and the protrusion is located on one side of the rotating shaft; the pressure block abuts the protrusion to move the slider body away from the rotating shaft, and the slider is in the second working position or the third working position of the slide groove.

5. The child stroller according to claim 4, characterized in that: The pressing block is provided with an inclined surface corresponding to the protruding portion, so that the sliding block can switch between the second working position and the third working position.

6. The child stroller according to claim 2, characterized in that: The slider or the slide groove is provided with a corresponding groove along the moving track of the first wire rod; and / or the slider or the slide groove is provided with a corresponding groove along the moving track of the second wire rod.

7. The child stroller according to claim 2, characterized in that: The connecting arm is provided with a wire post at the upper rear portion of the corresponding slide slot, and the other end of the second wire passes through the upper rear portion of the slide slot, bypasses the wire post and is connected to the rear directing member.

8. The child stroller according to claim 7, characterized in that: A roller is provided on the conductor column, and the other end of the second wire passes through the upper rear portion of the slide groove and is connected to the rear directing member through the roller.

9. The child stroller according to claim 2, characterized in that: The connecting arm is provided with a wire structure at the lower front portion of the corresponding slide slot, and the other end of the first wire passes through the lower front portion of the slide slot and is connected to the front directing member through the wire structure.

10. The child stroller according to claim 1, characterized in that: An abutting groove is provided at the bottom of the sliding block, one end of the elastic member is connected to the abutting groove, and the other end is connected to the bottom of the sliding groove.

11. The child stroller according to claim 1, characterized in that: One side of the slider is provided with a corresponding opening and a mounting post at a connection point corresponding to the first wire and / or the second wire, and one end of the first wire and / or the second wire is rotatably connected to the corresponding opening through the mounting post.

12. The child stroller according to claim 1, characterized in that: A first channel is provided in the front bracket along the moving track of the first wire; and / or a second channel is provided in the rear bracket along the moving track of the second wire.

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