Stroller

Abstract

A stroller (100). The stroller (100) comprises: a chassis frame (110), wherein the chassis frame (110) comprises a first frame (111) and a second frame (112) that are opposite to each other in a first direction, and the first frame (111) and the second frame (112) are rotatably connected; first inclined support legs (120) and second inclined support legs (130), wherein the first inclined support legs (120) each comprise a first wheel-side end and a first opposite end, the second inclined support legs (130) each comprise a second wheel-side end and a second opposite end, the first opposite end is rotatably connected to the corresponding second opposite end, the first wheel-side end is rotatably connected to the first frame (111), and the second wheel-side end is rotatably connected to the second frame (112); support leg sliding sleeves (140), wherein the support leg sliding sleeves (140) are respectively sleeved on the second inclined support legs (130); connecting rods (150), wherein each connecting rod (150) has one end rotatably connected to the corresponding support leg sliding sleeve (140) and the other end rotatably connected to both a first rotating end of the first frame (111) and a second rotating end of the second frame (112); and a push rod (160), wherein each end of the push rod (160) is rotatably connected to the corresponding support leg sliding sleeve (140).

Description

stroller

[0001] Cross-references to related applications

[0002] This application claims priority to Chinese Patent Application No. 202423155157.X, filed on December 19, 2024, entitled "Trolley", the entire contents of which are incorporated herein by reference. Technical Field

[0003] This application relates to the field of children's products technology, and more particularly to a stroller. Background Technology

[0004] Strollers are a baby's "transportation tool," a small vehicle that requires someone to push or pull it to move. With the continuous development of society, people are increasingly taking their babies out for travel or leisure.

[0005] However, the existing trolleys are too large, making them unsuitable for users to carry and store, thus affecting the user experience. Summary of the Invention

[0006] In order to solve the above-mentioned technical problems, or at least partially solve the above-mentioned technical problems, this application provides a trolley.

[0007] This application provides a trolley, which may include: a chassis frame, the chassis frame including a first frame and a second frame opposite to each other in a first direction, the first frame and the second frame being rotatably connected; a first diagonal support leg and a second diagonal support leg, the first diagonal support leg and the second diagonal support leg being arranged opposite to each other in the first direction, the first diagonal support leg including a first near wheel end and a first far wheel end, the second diagonal support leg including a second near wheel end and a second far wheel end, the first far wheel end and the second far wheel end being rotatably connected, the first near wheel end being rotatably connected to the first frame, and the second near wheel end being rotatably connected to the second frame; a support leg sleeve, the support leg sleeve being sleeved on the second diagonal support leg and being slidable along the extension direction of the second diagonal support leg; a connecting rod, one end of the connecting rod being rotatably connected to the support leg sleeve, and the other end being rotatably connected to both the first rotating end and the second rotating end; and a push rod, one end of the push rod being rotatably connected to the support leg sleeve.

[0008] It should be noted that the trolley has an unfolded state and a folded state. When the trolley is in the unfolded state, the first frame and the second frame are on the same horizontal plane, the support leg slide is located in the middle of the second diagonal support leg, and the push part of the push rod is located on the upper side of the trolley. When the trolley switches from the unfolded state to the folded state, the first frame rotates with the first rotating end as the rotation center, the second frame rotates with the second rotating end as the rotation center, and the first rotating end and the second rotating end move upward until the first frame and the second frame are folded together.

[0009] During this process, the connecting rod and the end near the first rotating end move upwards along with the first rotating end, while the other end of the connecting rod slides along the second inclined support leg toward the second near wheel end, so that the push part of the push rod can still be located on the top of the cart for easy access by the user. At the same time, the first inclined support leg rotates around the first far wheel end, and the second inclined support leg rotates around the second far wheel end until the first and second inclined support legs are folded, thereby realizing the switch of the cart from the unfolded state to the folded state, which facilitates the user's storage and retrieval, and improves the user experience.

[0010] In some embodiments of this application, the trolley further includes: a rotating shaft, a first rotating end having a first rotating hole, a second rotating end having a second rotating hole matching the first rotating hole, a connecting rod having a third rotating hole matching the first rotating hole, and the rotating shaft passing through the first rotating hole, the second rotating hole, and the third rotating hole.

[0011] In some embodiments of this application, the push rod includes a first rod segment and a second rod segment, the first rod segment being located on the side of the second rod segment away from the support leg slide, and the first rod segment and the second rod segment being rotatably connected or telescopically connected.

[0012] In some embodiments of this application, the first rod segment includes a first position and a second position. When the first rod segment is in the first position, the first rod segment and the second rod segment extend in the same direction. When the first rod segment is in the second position, the free end of the second rod segment extends toward the first inclined support leg.

[0013] In some embodiments of this application, the second inclined support leg is provided with a limiting portion, which is located between the support leg sleeve and the second far wheel end, and at least a portion of the limiting portion extends out of the sleeve hole of the support leg sleeve.

[0014] In some embodiments of this application, the limiting part is formed as a limiting post, the first inclined support leg is provided with a limiting hole, and the limiting post passes through the limiting hole.

[0015] In some embodiments of this application, the trolley further includes an auxiliary pull rod, the auxiliary pull rod having a retaining ring that is engaged with the chassis frame.

[0016] In some embodiments of this application, the auxiliary pull rod includes a telescopic outer rod and a telescopic inner rod, with the telescopic outer rod sleeved around the circumferential outer side of the telescopic inner rod.

[0017] In some embodiments of this application, the trolley further includes a locking structure, wherein the support leg slide has a use position and a folded position, and when the support leg slide is in the use position, the locking structure can fix the support leg slide to the position of the first diagonal support leg.

[0018] In some embodiments of this application, the trolley further includes: an auxiliary connector, wherein the first distal wheel end is rotatably connected to the auxiliary connector, and the second distal wheel end is rotatably connected to the auxiliary connector. Attached Figure Description

[0019] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0020] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 is a schematic diagram of a trolley provided in some embodiments of this application;

[0022] Figure 2 is a schematic diagram of the trolley shown in Figure 1 in a folded state;

[0023] Figure 3 is a schematic diagram of the trolley shown in Figure 1 with the auxiliary lever in use.

[0024] Reference numerals: 100, trolley; 110, chassis frame; 111, first frame; 112, second frame; 120, first diagonal support leg; 130, second diagonal support leg; 131, limiting part; 140, support leg sleeve; 150, connecting rod; 160, push rod; 161, first rod segment; 162, second rod segment; 170, auxiliary pull rod; 180, auxiliary connector; 190, auxiliary pull rope. Detailed Implementation

[0025] To better understand the above-mentioned objectives, features, and advantages of this application, the solution of this application will be further described below. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0026] Many specific details are set forth in the following description in order to provide a full understanding of this application, but this application may also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only some embodiments of this application, and not all embodiments.

[0027] Strollers are a baby's "transportation tool," a small vehicle that requires someone to push or pull it to move. With the continuous development of society, people are increasingly taking their babies out for travel or leisure.

[0028] However, the existing trolleys are too large, making them unsuitable for users to carry and store, thus affecting the user experience.

[0029] To solve the above-mentioned technical problems, please refer to Figures 1 to 3. This application provides a trolley 100, which may include a chassis frame 110, a first inclined support leg 120, a second inclined support leg 130, a support leg sleeve 140, a push rod 160, and a connecting rod 150.

[0030] For ease of description, please refer to Figure 1. In the following text, when the baby is sitting in the stroller 100, the direction the baby is facing is forward, the direction the baby is facing away from is backward, the side where the baby's left arm is located is left, the side where the baby's right arm is located is right, the direction of the baby's head is up, and the direction of the baby's feet is down.

[0031] The chassis frame 110 includes a first frame 111, a second frame 112 and a crossbar. Specifically, the first frame 111 and the second frame 112 are arranged opposite each other in a first direction, which can be the front-back direction of the trolley 100 or the left-right direction of the trolley 100.

[0032] Specifically, the first frame 111 is formed in a "U" shape, with both free ends of the first frame 111 forming first rotating ends. The second frame 112 is also formed in a "U" shape, with both free ends of the second frame 112 forming second rotating ends. The first rotating end on the left and the second rotating end on the left are rotatably connected, and the first rotating end on the right and the second rotating end on the right are rotatably connected. The first frame 111 and the second frame 112 are arranged in a ring, with crossbars extending in the left and right directions. There are multiple crossbars, which are spaced apart in the front and back directions. The crossbars are located inside the first frame 111 and the second frame 112 to enhance the structural strength of the chassis frame 110 in the left and right directions.

[0033] There can be two first diagonal support legs 120 and two second diagonal support legs 130. The two first diagonal support legs 120 are located on the left front side and right front side of the trolley 100, respectively, and the two second diagonal support legs 130 are located on the left rear side and right rear side of the trolley 100, respectively.

[0034] The following description uses the first diagonal support leg 120 and the second diagonal support leg 130 located on the left as an example. The first diagonal support leg 120 and the second diagonal support leg 130 located on the right can have the same structure as the first diagonal support leg 120 and the second diagonal support leg 130 located on the left.

[0035] The first inclined support leg 120 and the second inclined support leg 130 are arranged opposite each other in the front-rear direction. The first inclined support leg 120 includes a first near wheel end and a first far wheel end. The first near wheel end is provided with a wheel. The second inclined support leg 130 includes a second near wheel end and a second far wheel end. The second near wheel end is provided with a wheel. The first far wheel end and the second far wheel end are rotatably connected. The first near wheel end is rotatably connected to the first frame 111, and the second near wheel end is rotatably connected to the second frame 112.

[0036] It should be noted that there can be two connecting rods 150 and two outrigger sleeves 140. The two connecting rods 150 are located on the left and right sides of the trolley 100, respectively, and the two outrigger sleeves 140 are respectively fitted onto the two second inclined support legs 130.

[0037] The following description focuses on the outrigger slide 140 and connecting rod 150 located on the left side. The outrigger slide 140 is formed as a hollow sleeve structure, which is fitted onto the second inclined support leg 130 and can slide along the extension direction of the second inclined support leg 130.

[0038] One end of the connecting rod 150 is rotatably connected to the outrigger sleeve 140, and the other end is rotatably connected to both the first rotating end and the second rotating end.

[0039] The push rod 160 may include a connecting part and a push part. Specifically, the push rod 160 may be formed in the shape of a "U". The two free ends of the push rod 160 are formed as connecting parts that are rotatably connected to the support leg slides 140 located on the left and right sides, respectively. The push part is the end of the push rod 160 away from the support leg slides 140.

[0040] The outrigger sleeve 140 may be provided with a rotating groove, and the connecting part of the push rod 160 extends into the rotating groove. The connecting part and the side wall of the rotating groove are rotatably connected through a rotating shaft.

[0041] It should be noted that the trolley 100 has an unfolded state (e.g., the state of the trolley 100 shown in Figure 1) and a folded state (e.g., the state of the trolley 100 shown in Figure 2). When the trolley 100 is in the unfolded state, the first frame 111 and the second frame 112 are on the same horizontal plane, the support leg slide 140 is located in the middle position of the second inclined support leg 130, and the push part of the push rod 160 is located on the upper side of the trolley 100. When the trolley 100 switches from the unfolded state to the folded state, the first frame 111 rotates with the first rotating end as the rotation center, and the second frame 112 rotates with the second rotating end as the rotation center. The first rotating end and the second rotating end move upward until the first frame 111 and the second frame 112 are folded together.

[0042] During this process, the end of the connecting rod 150 near the first rotating end moves upward along with the first rotating end. The end of the connecting rod 150 connected to the support leg slide 140 slides along the second inclined support leg 130 toward the second near wheel end with the support leg slide 140, so that the push part of the push rod 160 can still be located on the top of the trolley 100 for easy access by the user. At the same time, the first inclined support leg 120 rotates around the first far wheel end, and the second inclined support leg 130 rotates around the second far wheel end until the first inclined support leg 120 and the second inclined support leg 130 are folded, thereby realizing the switching of the trolley 100 from the unfolded state to the folded state, which facilitates the user's storage and retrieval, and improves the user experience.

[0043] In some embodiments of this application, the trolley 100 may further include a rotating shaft, a first rotating end having a first rotating hole, a second rotating end having a second rotating hole matching the first rotating hole, and a connecting rod 150 having a third rotating hole matching the first rotating hole. The rotating shaft passes through the first rotating hole, the second rotating hole, and the third rotating hole. This achieves a rotating connection between the first frame 111, the second frame 112, and the connecting rod 150.

[0044] In some embodiments of this application, please continue to refer to Figures 1 and 2. The push rod 160 may include a first rod segment 161 and a second rod segment 162. The first rod segment 161 is located on the side of the second rod segment 162 opposite to the support leg slide 140, and the first rod segment 161 and the second rod segment 162 are rotatably connected. In this way, when it is necessary to switch the trolley 100 to a folded state, the first rod segment 161 can be rotated to reduce the overall height of the trolley 100 in the folded state, thereby reducing the space occupied by the trolley 100 in the height direction in the folded state.

[0045] Further, please continue to refer to Figures 1 and 2. The first segment 161 includes a first position and a second position. When the first segment 161 is in the first position (e.g., the position of the first segment 161 shown in Figure 1), the first segment 161 and the second segment 162 extend in the same direction. When the first segment 161 is in the second position (e.g., the position of the second segment 162 shown in Figure 2), the free end of the second segment 162 extends toward the first inclined support leg 120.

[0046] It should be noted that when the trolley 100 is in the unfolded state, the first rod segment 161 is in the first position, and the first rod segment 161 of the push rod 160 is located at the rear of the trolley 100. When switching the trolley 100 to the folded state, the first rod segment 161 can be switched from the first position to the second position. This can reduce the space occupied by the trolley 100 in the front and back directions, making it more convenient for users to pick up, put away and store, and improving the user experience.

[0047] In other embodiments of this application, the first segment 161 and the second segment 162 may also be telescopically connected.

[0048] In some embodiments of this application, please continue to refer to FIG1. ​​The second inclined support leg 130 is provided with a limiting part 131, which is located between the support leg sleeve 140 and the second far wheel end. At least a portion of the limiting part 131 extends out of the sleeve hole of the support leg sleeve 140. Thus, by providing the limiting part 131, the support leg sleeve 140 can slide between the limiting part 131 and the second near wheel end.

[0049] It should be noted that when the trolley 100 is in the unfolded state, the outrigger slide 140 is located between the limiting part 131 and the second near wheel end, and abuts against the limiting part 131 to prevent the outrigger slide 140 from sliding toward the second far wheel end, thus ensuring the stability of the outrigger slide 140 in the position of the second diagonal support leg 130 when the trolley 100 is in the unfolded state.

[0050] Specifically, the limiting part 131 is formed as a limiting post, and the first inclined support leg 120 is provided with a limiting hole, through which the limiting post passes. In this way, the limiting hole can be punched out on the inclined support leg structure in the prior art, reducing the processing difficulty and processing cost of the first inclined support leg 120.

[0051] In some embodiments of this application, please refer to Figure 3. The trolley 100 may also include an auxiliary pull rod 170. The auxiliary pull rod 170 is provided with retaining rings, which are engaged with the chassis frame 110. Specifically, the auxiliary pull rod 170 is provided with two retaining rings, which are spaced apart in the extension direction of the auxiliary pull rod 170. The two retaining rings are a first retaining ring and a second retaining ring, respectively. The first retaining ring is engaged with the crossbar of the chassis frame 110, and the second retaining ring is engaged with the first frame 111 at the front end position to realize the temporary storage of the auxiliary pull rod 170.

[0052] When the user needs to pull the trolley 100, the auxiliary column pull rod can be removed from the chassis frame 110, and then the first retaining ring can be engaged with the first frame 111 at the front end, so that the auxiliary pull rod 170 is located at the front end of the trolley 100, making it convenient for the user to pull the trolley 100.

[0053] Furthermore, the auxiliary pull rod 170 may include a telescopic outer rod and a telescopic inner rod. The telescopic outer rod is sleeved on the circumferential outer side of the telescopic inner rod. A first retaining ring is located on the telescopic outer rod, and a second retaining ring is located on the free end of the telescopic inner rod. In this way, the length of the auxiliary pull rod 170 can be extended during use, thereby improving the user experience.

[0054] The locking mechanism between the retaining ring and the crossbar, and between the retaining ring and the first frame 111, allows for rotation relative to either the crossbar or the first frame 111 while simultaneously achieving the locking action. This enables adjustment of the angle of the auxiliary pull rod 170 during use, further improving the user experience.

[0055] In some embodiments of this application, the trolley 100 may also include a locking structure, and the support leg slide 140 includes a use position and a folded position. When the support leg slide 140 is in the use position, the locking structure can fix the support leg slide 140 to the position of the first inclined support leg 120.

[0056] Specifically, the locking structure may include a first locking pin and a second locking pin. The first locking pin is located on the inner peripheral wall of the outrigger slide 140, and the second locking pin is located inside the second inclined support leg 130 and can extend out of the side wall of the second inclined support leg 130. When the locking structure is in the use position, the second locking pin extends out of the side wall of the second inclined support leg 130 and abuts against the first locking pin to fix the outrigger slide 140 in the use position.

[0057] In some embodiments of this application, referring to FIG1, the trolley 100 may further include an auxiliary connector 180, with the first distal wheel end rotatably connected to the auxiliary connector 180 and the second distal wheel end rotatably connected to the auxiliary connector 180. Thus, the rotatable connection between the first inclined support leg 120 and the second inclined support leg 130 is achieved by setting the auxiliary connector 180.

[0058] In some embodiments of this application, please continue to refer to Figures 1 to 3. The trolley 100 may also include an auxiliary pull rope 190, which is connected to the chassis frame 110. When the user needs to switch the trolley 100 from the unfolded state to the folded state, the state switch can be initiated by pulling the auxiliary pull rope 190.

[0059] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0060] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0061] In the description of the embodiments of this application, the term "and / or" refers to and covers any and all possible combinations of one or more of the associated listed items. The term "and / or" describes an association relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this application generally indicates that the preceding and following related objects have an "or" relationship.

[0062] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, "linking" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. "Fixed connection" refers to a connection where the relative positional relationship remains unchanged after the connection. Furthermore, the directional terms mentioned in the embodiments of this application, such as "inner" and "outer," are only for reference to the directions in the accompanying drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the embodiments of this application, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0063] In the description of embodiments of this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0064] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments described herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A trolley, characterized in that, include: A chassis frame, the chassis frame including a first frame and a second frame opposite to each other in a first direction, the first frame and the second frame being rotatably connected; First inclined support leg and second inclined support leg, the first inclined support leg and the second inclined support leg are arranged opposite to each other in the first direction, the first inclined support leg includes a first near wheel end and a first far wheel end, the second inclined support leg includes a second near wheel end and a second far wheel end, the first far wheel end and the second far wheel end are rotatably connected, the first near wheel end is rotatably connected to the first frame, the second near wheel end and the second frame are rotatably connected; The outrigger slide sleeve is fitted onto the second inclined support leg and can slide along the extension direction of the second inclined support leg; A connecting rod, one end of which is rotatably connected to the outrigger sleeve, and the other end of which is rotatably connected to both the first rotating end and the second rotating end; A push rod, one end of which is rotatably connected to the support leg sleeve.

2. The trolley according to claim 1, characterized in that, Also includes: The rotating shaft has a first rotating hole at the first rotating end, a second rotating hole at the second rotating end that matches the first rotating hole, and a third rotating hole at the connecting rod that matches the first rotating hole. The rotating shaft passes through the first rotating hole, the second rotating hole, and the third rotating hole.

3. The trolley according to claim 1, characterized in that, The push rod includes a first rod segment and a second rod segment. The first rod segment is located on the side of the second rod segment away from the support leg slide sleeve. The first rod segment and the second rod segment are rotatably connected or telescopically connected.

4. The trolley according to claim 3, characterized in that, The first rod segment includes a first position and a second position. When the first rod segment is in the first position, the first rod segment and the second rod segment extend in the same direction. When the first rod segment is in the second position, the free end of the second rod segment extends toward the first inclined support leg.

5. The trolley according to claim 1, characterized in that, The second inclined support leg is provided with a limiting part, which is located between the support leg sleeve and the second far wheel end, and at least part of the limiting part extends out of the sleeve hole of the support leg sleeve.

6. The trolley according to claim 5, characterized in that, The limiting part is formed as a limiting post, and the first inclined support leg is provided with a limiting hole, through which the limiting post passes.

7. The trolley according to claim 1, characterized in that, Also includes: An auxiliary tie rod is provided with a retaining ring, which is engaged with the chassis frame.

8. The trolley according to claim 7, characterized in that, The auxiliary tie rod includes a telescopic outer rod and a telescopic inner rod, with the telescopic outer rod sleeved around the circumferential outer side of the telescopic inner rod.

9. The trolley according to claim 1, characterized in that, Also includes: The locking structure includes a use position and a folded position for the outrigger slide. When the outrigger slide is in the use position, the locking structure can fix the outrigger slide to the position of the first inclined support leg.

10. The trolley according to claim 1, characterized in that, Also includes: An auxiliary connector is provided, wherein the first distal wheel end is rotatably connected to the auxiliary connector, and the second distal wheel end is rotatably connected to the auxiliary connector.

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