A connector and cart frame that is adjustable to accommodate the width of the vehicle

Abstract

The application discloses a connector and a trolley frame which can be adjusted according to the width of a carrier. The connector comprises a fixed seat, a movable seat and a connecting assembly composed of a connecting piece and a constraint piece. The movable seat can be adjusted in translational motion relative to the fixed seat. The two ends of the connecting piece are hinged to the fixed seat and the movable seat respectively. The constraint piece is simultaneously constrained by the adjusting guide part of the fixed seat and the connecting guide part of the connecting piece. The movable seat is always limited by linkage during the adjustment process, and only makes translational motion within the stroke range. The movable seat is kept in the connected state by the resistance of the resistance part, so that the trolley frame adopting the connector can be adapted to carriers with various widths, and when the carrier is connected thereto, the posture of the carrier can be ensured to be stable and reliable. The application provides a compatible connection scheme for connecting the trolley frame with carriers with different widths, and facilitates people to select and use according to needs.

Description

Technical Field

[0001] This invention relates to the field of vehicle technology, and in particular to a connector and trolley frame that can be adjusted to adapt to the width of a vehicle. Background Technology

[0002] Currently, traditional stroller frames and carriers are typically connected via adapters on the left and right sides. These adapters often use a plug / socket connection, where the socket is fixed to the frame and the plug to the carrier. While this structure provides a stable connection, it has significant limitations in adjustment flexibility. Specifically, after the plug and socket are connected, they are strictly limited laterally, preventing relative translation. This results in a fixed spacing between the left and right sockets, meaning the stroller frame can only accommodate carriers of a specific width. With the increasing demand for multi-functional childcare, users often want to directly install narrower child safety seats onto stroller frames for a two-in-one function. However, since child safety seats are typically narrower than regular stroller seats, existing fixed-spacing adapters cannot provide sufficient installation space. This makes it difficult to directly connect and use child safety seats, causing inconvenience and low practicality. In other words, existing rigid adapters are incompatible with such narrow carriers, limiting the stroller frame's usability and compatibility.

[0003] To accommodate vehicles of varying widths, such as the stroller adapter and stroller described in application number 202110720709.9, the adjustment mechanism employs a first and second connecting member spaced apart along the left-right direction. Each of the first and second connecting members has its ends hinged to a connector and a fixed base, respectively, forming a parallelogram four-bar linkage. This allows the connector to move parallel to the fixed base to adjust the lateral distance between the left and right connectors. However, this adapter with the aforementioned double-bar parallelogram mechanism has the following drawbacks: First, it requires two independent connecting members and four hinge shafts, resulting in a large number of parts and significant accumulated assembly errors. Over time, the hinge gaps can cause connector wobbling. Second, the adjustment process relies entirely on the geometric four-bar linkage, leading to significant operational resistance over a wide adjustment range, making operation laborious and inconvenient for users.

[0004] Therefore, this invention addresses the aforementioned problems. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a connector and trolley frame that can be adjusted to adapt to the width of the vehicle. The connector includes a fixed seat, a movable seat, and a connecting assembly consisting of a connecting member and a constraint member. The movable seat can be adjusted by translational movement relative to the fixed seat. That is, both ends of the connecting member are hinged to the fixed seat and the movable seat respectively. The constraint member is constrained by both the adjustment guide of the fixed seat and the connecting guide of the connecting member, so that the movable seat is always restricted by linkage during the adjustment process and can only move within the stroke range. Furthermore, the movable seat is kept in the connected state by the abutment of the constraint contact part. Therefore, the trolley frame using the connector of this invention can be adapted to vehicles of various widths, and when the vehicle is connected to it, the connection posture of the vehicle can be guaranteed to be stable and reliable. It provides a compatible connection solution for connecting the trolley frame with vehicles of different widths, making it convenient for people to choose and use according to their needs.

[0006] To address the aforementioned technical problems, the present invention provides a connector adjustable to accommodate the width of a vehicle, used to connect a trolley frame to a vehicle 200, comprising:

[0007] Fixed base 1, which is used to connect directly or indirectly to the trolley frame, and the fixed base 1 is provided with an adjustment guide part 11;

[0008] Movable seat 2, the movable seat 2 having a connected state to be directly or indirectly connected to the carrier 200;

[0009] A connecting component 3 is located between a fixed base 1 and a movable base 2, and is used to adjust the movement of the movable base 2 relative to the fixed base 1. The connecting component 3 includes a connector 31 and a constraint member 32 that are inclined to each other. The lower end of the connector 31 is hinged to the fixed base 1 via a pivot B, and the upper end of the connector 31 is hinged to the movable base 2 via a pivot A. The connector 31 is provided with a connecting guide portion 311. The lower end of the constraint member 32 is movably connected to the fixed base 1 and constrained by the adjusting guide portion 11. The upper part of the constraint member 32 is slidably constrained within the connecting guide portion 311, so that the constraint member 32 is inclined and cross-arranged relative to the connector 31. The upper end of the constraint member 32 forms a constraint abutment portion 321, which is used to abut against the lower part of the movable base 2 so that the movable base 2 remains in a connected state.

[0010] As described above, in a connector that can be adjusted to accommodate the width of a vehicle, the lower end of the constraint member 32 is rotatably and slidably connected to the fixed seat 1 and constrained by the adjustment guide 11. The connection guide 311 is a connection guide hole inclinedly disposed on the connector 31. The perpendicular line between the pivot A and the pivot B intersects the central axis of the connection guide 311. When the adjustable movable seat 2 moves relative to the fixed seat 1 to a predetermined position, the lower end of the constraint member 32 can move relative to the fixed seat 1 along the adjustment guide 11 and stop accordingly. The upper part of the constraint member 32 extends into the connection guide 311 and interacts with it to restrict the connector 31 from rotating around the pivot B. At the same time, the constraint contact part 321 abuts against the movable seat 2 to keep the movable seat 2 in a connected state.

[0011] As described above, in a connector that can be adjusted to accommodate the width of a carrier, the constraint contact portion 321 is exposed in the connection guide hole and engages with the lower part of the movable seat 2, so that the movable seat 2 is in a connected state.

[0012] As described above, the connector is adjustable to accommodate the width of a vehicle. The adjustment guide 11 is an adjustment guide groove 111 inclinedly disposed on the fixed base 1. The lower end of the constraint member 32 is provided with a positioning guide pin 322 that is rotatably and slidably placed in the adjustment guide groove 111. The movable base 2 has a first position and a second position. When the movable base 2 is in the first position, the positioning guide pin 322 is placed at one end of the adjustment guide groove 111. When the movable base 2 is in the second position, the positioning guide pin 322 is placed at the other end of the adjustment guide groove 111.

[0013] As described above, the connector that can be adjusted to adapt to the width of the vehicle includes an adjustment guide 11 that further includes a positioning slot 112. The positioning slot 112 is disposed on the fixed base 1 and communicates with the adjustment guide groove 111. The positioning guide pin 322 can be correspondingly stopped in the positioning slot 112.

[0014] As described above, a connector that can be adjusted to adapt to the width of a vehicle has a first limiting structure 4 between the connector 31 and the fixed base 1 for limiting the connector 31 relative to the fixed base 1 when the movable base 2 is in the first position. The first limiting structure 4 includes a first limiting fixed part 41 and a first limiting movable part 42 disposed between the fixed base 1 and the connector 31 and capable of mutually blocking each other.

[0015] As described above, a connector that can be adjusted to adapt to the width of a vehicle has a second limiting structure 5 between the connector 31 and the constraint member 32 to limit the rotation of the connector 31 relative to the fixed seat 1 when the movable seat 2 is not in the first position. The second limiting structure 5 includes a second limiting fixed part 51 and a second limiting movable part 52 disposed between the connecting guide part 311 and the constraint member 32 and capable of mutually blocking each other.

[0016] As described above, a connector that can be adjusted to adapt to the width of a vehicle has a guide component 6 between the connector 31 and the movable seat 2. The guide component 6 includes a guide rod 61 and a guide arc hole 62. The guide arc hole 62 is located on the movable seat 2, and the guide rod 61 is located on the upper end of the connector 31 and guides and cooperates with the guide arc hole 62.

[0017] As described above, the connector is adjustable to accommodate the width of a vehicle. The movable seat 2 has a first position and a second position. The guide arc-shaped hole 62 has a first limiting wall 621 and a second limiting wall 622. When the movable seat 2 is in the first position, the guide rod 61 engages with the first limiting wall 621. When the movable seat 2 is in the second position, the guide rod 61 engages with the second limiting wall 622.

[0018] As described above, a connector that can be adjusted to adapt to the width of a vehicle has an elastic element between the connector 31 and the fixed base 1 for driving the connector 31 relative to the fixed base 1, so that the constraint element 32 keeps the connector 31 locked and restricts the connector 31 from rotating relative to the fixed base 1.

[0019] As described above, in a connector adjustable to accommodate the width of a vehicle, each movable seat 2 has at least a first position and a second position. When both movable seats 2 are in the first position, the lateral distance between the two movable seats 2 is the largest; when both movable seats 2 are in the second position, the lateral distance between the two movable seats 2 is the smallest. When the movable seat 2 is not in the first position, the connecting member 31 and the constraint member 32 are both inclinedly placed between the fixed seat 1 and the movable seat 2. When the movable seat 2 is adjusted to a position other than the first position, a blocking limit is formed between the upper part of the constraint member 32 and the connecting guide 311, so that the constraint member 32 and the connecting member 31 are locked together, thereby restricting the rotation of the connecting member 31 relative to the fixed seat 1.

[0020] As described above, the connector that can be adjusted to adapt to the width of the vehicle has an adjustment guide 11 that is inclinedly disposed on the fixed base 1. The adjustment guide 11 includes a plurality of positioning slots 112 disposed on the fixed base 1 and communicating with the adjustment guide 111. The lower end of the constraint member 32 is rotatably and slidably placed in the adjustment guide 111 and is positioned and engaged with the corresponding positioning slot 112.

[0021] The present invention also provides a trolley frame, including a frame body 100 and a connector as described above that can be adjusted to adapt to the width of the vehicle, wherein the fixing seat 1 is fixedly or detachably connected to the frame body 100.

[0022] As described above, in a stroller frame, the two connectors are respectively located on the left and right sides of the frame body 100, and the lateral spacing between the movable seats 2 on both sides is adjustable; the movable seats 2 have at least a first position and a second position. When both movable seats 2 are in the first position, the lateral spacing between the two movable seats 2 is the largest, and when both movable seats 2 are in the second position, the lateral spacing between the two movable seats 2 is the smallest.

[0023] As described above, a stroller frame also includes a carrier 200, wherein the movable seat 2 is fixedly or detachably connected to the carrier 200, and the carrier 200 is a baby carrier, a bassinet, a seat frame, or a child safety seat.

[0024] Compared with the prior art, the present invention has the following advantages:

[0025] 1. The connector in this invention includes a fixed seat, a movable seat, and a connecting assembly consisting of a connecting member and a constraint member. The movable seat can be adjusted relative to the fixed seat by translational movement. That is, both ends of the connecting member are hinged to the fixed seat and the movable seat respectively. The constraint member is simultaneously constrained by the adjustment guide of the fixed seat and the connection guide of the connecting member, so that the movable seat is always subject to linkage restriction during the adjustment process and can only make translational movements within the stroke range. Furthermore, the movable seat is kept in the connected state by the abutment of the constraint contact part. Therefore, the trolley frame using the connector of this invention can be adapted to vehicles of various widths, and when the vehicle is connected to it, the connection posture of the vehicle can be guaranteed to be stable and reliable. It provides a compatible connection solution for connecting the trolley frame with vehicles of different widths, making it convenient for people to choose and use according to their needs.

[0026] 2. In this invention, the constraint component is simultaneously guided and constrained by both the adjustment guide and the connection guide, so that the connection between the fixed seat, the connector and the constraint component forms a triangular support structure, which has good structural stability and can effectively suppress the shaking and deflection of the movable seat, making the vehicle installation more stable and the use safer.

[0027] 3. In this invention, the lower end of the constraint member is rotatably and slidably connected to the fixed base, and the upper part is slidably connected to the connecting member, so that the constraint member can both adapt to trajectory changes and slide smoothly along the guide during the adjustment process, making the width adjustment smoother and without jamming.

[0028] 4. To ensure smooth adjustment, a guide assembly is provided between the connector and the movable seat.

[0029] 5. To improve the stability and reliability of the connection, an elastic element is provided between the connector and the fixed seat to drive the connector relative to the fixed seat, so that the constraint element keeps the connector locked and restricts the connector from rotating relative to the fixed seat.

[0030] 6. When the movable seat is not in the first position, the weight of the movable seat acts on the inclined connecting member, the connecting member acts on the upper part of the inclined constraint member, and the lower end of the constraint member acts on the fixed seat. Due to the friction between the connecting member and the upper part of the constraint member, and the friction between the lower end of the constraint member and the fixed seat, the constraint member is relatively stationary relative to the fixed seat and the connecting member. This allows the constraint member to lock the connecting member and keep it in its current state while rotating around pivot B. On this basis, the constraint contact part of the constraint member engages with the movable seat to restrict the movable seat from rolling towards the vehicle side around pivot A. In addition, since the upper part of the constraint member is always subjected to the downward force of the connecting member, and the lower end of the constraint member always acts upward on the fixed seat, the connecting member is locked by the constraint member and cannot rotate around pivot B, ultimately achieving a stable connection. Attached Figure Description

[0031] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings, wherein:

[0032] Figure 1 This is a perspective view of the movable seat in the first gear position in this invention.

[0033] Figure 2 This is a side view of the movable seat in the first gear position in this invention.

[0034] Figure 3 This is a cross-sectional view of the movable seat in the first gear position in this invention.

[0035] Figure 4 This is a perspective view of the movable seat in the second position according to the present invention.

[0036] Figure 5 This is a side view of the movable seat in the second position according to the present invention.

[0037] Figure 6 This is a cross-sectional view of the movable seat in the second position according to the present invention.

[0038] Figure 7 This is an exploded view of the connector in this invention.

[0039] Figure 8 This is a side view of the invention when both movable seats are in the first gear position.

[0040] Figure 9 This is a side view of the invention when both movable seats are in the second position.

[0041] Figure 10 This is a perspective view of the seat frame connected to the trolley frame via a connector in this invention.

[0042] Figure 11This is a perspective view of the child safety seat connected to the stroller frame via a connector in this invention. Detailed Implementation

[0043] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0044] like Figures 1-11 As shown, the present invention discloses a connector adjustable to accommodate the width of a vehicle, used to connect a trolley frame to a vehicle 200. It includes a fixed base 1, a movable base 2, and a connecting assembly 3. The fixed base 1 is used for direct or indirect connection to the trolley frame and is provided with an adjustment guide 11. The movable base 2 is in a connected state to be directly or indirectly connected to the vehicle 200. The connecting assembly 3 is located between the fixed base 1 and the movable base 2 and is used to adjust the movement of the movable base 2 relative to the fixed base 1. The connecting assembly 3 includes a connecting member 31 and a constraint member 32 arranged at inclinations to each other. The lower end of the connecting member 31 is hinged to the fixed seat 1 via pivot B, and the upper end of the connecting member 31 is hinged to the movable seat 2 via pivot A. The connecting member 31 is provided with a connecting guide 311. The lower end of the constraint member 32 is movably connected to the fixed seat 1 and constrained by the adjusting guide 11. The upper part of the constraint member 32 is slidably constrained within the connecting guide 311, so that the constraint member 32 is inclined and cross-arranged relative to the connecting member 31. The upper end of the constraint member 32 forms a constraint abutment 321, which is used to abut against the lower part of the movable seat 2 so that the movable seat 2 remains in the connected state. The connector in this invention includes a fixed seat, a movable seat, and a connecting assembly consisting of a connecting member and a constraint member. The movable seat can be adjusted relative to the fixed seat by translational movement. That is, both ends of the connecting member are hinged to the fixed seat and the movable seat respectively. The constraint member is simultaneously constrained by the adjustment guide of the fixed seat and the connection guide of the connecting member, so that the movable seat is always subject to linkage restriction during the adjustment process and can only perform translational movement within the stroke range. Furthermore, the movable seat is kept in the connected state by the abutment of the constraint contact part. Therefore, the trolley frame using the connector of this invention can be adapted to vehicles of various widths, and when the vehicle is connected to it, the connection posture of the vehicle can be guaranteed to be stable and reliable. It provides a compatible connection solution for connecting the trolley frame with vehicles of different widths, making it convenient for people to choose and use according to their needs.

[0045] In this invention, the constraint member is simultaneously guided and constrained by both the adjustment guide and the connection guide, so that the connection between the fixed seat, the connector and the constraint member forms a triangular support structure, which has good structural stability and can effectively suppress the shaking and deflection of the movable seat, making the vehicle installation more stable and the use safer.

[0046] like Figures 1-7As shown, both the fixed seat 1 and the movable seat 2 are provided with connecting opening slots 10. The connecting member 31 and the constraint member 32 are placed in the corresponding connecting opening slots 10 and are limited by the side wall of the connecting opening slots 10, ensuring that the movable seat 2 can only be adjusted relative to the fixed seat 1 on the same vertical plane.

[0047] like Figures 1-6 As shown, in order to achieve a stable connection, the lower end of the constraint member 32 is rotatably and slidably connected to the fixed seat 1 and constrained by the adjustment guide part 11. The connection guide part 311 is a connection guide hole inclinedly provided on the connector 31. The perpendicular line between the pivot A and the pivot B intersects the central axis of the connection guide part 311. When the adjusting movable seat 2 moves relative to the fixed seat 1 to a predetermined position, the lower end of the constraint member 32 can move relative to the fixed seat 1 along the adjustment guide part 11 and stop accordingly. The upper part of the constraint member 32 extends into the connection guide part 311 and interacts with each other to restrict the connector 31 from rotating around the pivot B. At the same time, the constraint abutment part 321 abuts and cooperates with the movable seat 2 to keep the movable seat 2 in a connected state.

[0048] In this invention, the lower end of the constraint member is rotatably and slidably connected to the fixed base, and the upper part is slidably connected to the connecting member. This allows the constraint member to adapt to changes in trajectory during adjustment and to slide smoothly along the guide, making the width adjustment smoother and without jamming.

[0049] like Figure 3 , 6 As shown, the constraint contact portion 321 protrudes from the connecting guide hole and engages with the lower part of the movable seat 2, thus placing the movable seat 2 in the connected state. The lower part of the movable seat 2 is offset from the pivot A. The connecting guide hole guides the sliding path of the constraint member, ensuring precise and reliable engagement between the constraint member and the movable seat. This guarantees that the constraint member can apply a stable supporting force to the movable seat in any adjustment position, preventing the movable seat from overturning under load, and further enhancing the safety and reliability of the connection.

[0050] like Figures 1-7 As shown, for smooth adjustment and reliable positioning, the adjustment guide part 11 is an adjustment guide groove 111 inclinedly set on the fixed base 1. The lower end of the constraint member 32 is provided with a positioning guide pin 322 that is rotatably and slidably placed in the adjustment guide groove 111. The movable base 2 has a first position and a second position. When the movable base 2 is in the first position, the positioning guide pin 322 is placed at one end of the adjustment guide groove 111. When the movable base 2 is in the second position, the positioning guide pin 322 is placed at the other end of the adjustment guide groove 111.

[0051] like Figures 1-7As shown, in order to achieve stable positioning during adaptive adjustment, the adjustment guide 11 also includes a positioning slot 112. The positioning slot 112 is provided on the fixed base 1 and is connected to the adjustment guide groove 111. The positioning guide pin 322 can be correspondingly stopped in the positioning slot 112.

[0052] The positioning guide pin 322 and the side wall of the adjusting guide groove 111, as well as the upper part of the constraint member 32 and the connecting guide part 311, retain moderate sliding friction. This provides tactile damping during width adjustment, prevents the movable seat 2 from sliding due to its own weight or vibration, helps the constraint member 32 maintain the correct movement posture, and makes the positioning guide pin 322 fall more reliably into the positioning slot 112 to achieve gear positioning.

[0053] like Figures 1-3 As shown, in order to improve the stability and load-bearing capacity of the connector in this position, a first limiting structure 4 is provided between the connector 31 and the fixed base 1 to limit the connector 31 relative to the fixed base 1 when the movable base 2 is in the first position. The first limiting structure 4 includes a first limiting fixed part 41 and a first limiting movable part 42 disposed between the fixed base 1 and the connector 31 and capable of mutually blocking each other.

[0054] like Figures 4-6 As shown, to improve the stability and load-bearing capacity of the connector at corresponding positions, a second limiting structure 5 is provided between the connector 31 and the constraint member 32 to restrict the rotation of the connector 31 relative to the fixed seat 1 when the movable seat 2 is not in the first position. The second limiting structure 5 includes a second limiting fixed part 51 and a second limiting movable part 52 disposed between the connecting guide part 311 and the constraint member 32 and capable of mutually blocking each other. In this embodiment, the second limiting fixed part 51 and the second limiting movable part 52 are formed by the contact surfaces that contact and cooperate with each other between the connecting guide part 311 and the constraint member 32.

[0055] like Figure 1 , 2 As shown in Figures 4, 5, and 7, in order to ensure smooth adjustment, a guide assembly 6 is provided between the connector 31 and the movable seat 2. The guide assembly 6 includes a guide rod 61 and a guide arc hole 62. The guide arc hole 62 is located on the movable seat 2, and the guide rod 61 is located on the upper end of the connector 31 and guides and cooperates with the guide arc hole 62.

[0056] like Figures 1-7As shown, in order to improve the stability and load-bearing capacity of the connector at the corresponding positions, the movable seat 2 has a first position and a second position; the guide arc hole 62 has a first limiting wall 621 and a second limiting wall 622. When the movable seat 2 is in the first position, the guide rod 61 is in blocking engagement with the first limiting wall 621. When the movable seat 2 is in the second position, the guide rod 61 is in blocking engagement with the second limiting wall 622.

[0057] To improve the stability and reliability of the connection, an elastic element is provided between the connector 31 and the fixed base 1 to drive the connector 31 relative to the fixed base 1, so that the constraint member 32 keeps the connector 31 locked and restricts the rotation of the connector 31 relative to the fixed base 1. The elastic element can be a torsion spring provided on the pivot B, with its two ends connected to the connector 31 and the fixed base 1 respectively, which is not shown in the figure. This elastic element is used to provide a preload force to the connector 31 to rotate around the pivot B, so that the constraint member 32 is always elastically pressed into the connection guide 311, thereby maintaining the locked state of the connector 31 and effectively restricting the rotation of the connector 31 relative to the fixed base 1.

[0058] like Figures 4-6 As shown, in order to adaptively adjust the locking, each of the movable seats 2 has at least a first position and a second position. When both movable seats 2 are in the first position, the lateral distance between the two movable seats 2 is the largest; when both movable seats 2 are in the second position, the lateral distance between the two movable seats 2 is the smallest. When the movable seat 2 is not in the first position, the connecting member 31 and the constraint member 32 are both placed obliquely between the fixed seat 1 and the movable seat 2. When the movable seat 2 is adjusted to a position other than the first position, the upper part of the constraint member 32 and the connecting guide part 311 form a blocking limit, so that the constraint member 32 and the connecting member 31 lock each other, thereby restricting the rotation of the connecting member 31 relative to the fixed seat 1. Specifically, the adjustment guide part 11 is an adjustment guide groove 111 inclinedly disposed on the fixed base 1. The adjustment guide part 11 includes a plurality of positioning slots 112 disposed on the fixed base 1 and communicating with the adjustment guide groove 111. The lower end of the constraint member 32 is rotatably and slidably placed in the adjustment guide groove 111 and is positioned and engaged with the corresponding positioning slots 112 to achieve precise positioning at multiple gear positions and reliable locking. Specifically, the plurality of positioning slots 112 are spaced apart on the upper side wall of the adjustment guide groove 111.

[0059] like Figure 6As shown, when the movable seat 2 is not in the first position, the weight of the movable seat 2 acts on the inclined connecting member 31, which in turn acts on the upper part of the inclined constraint member 32. The lower end of the constraint member 32 acts on the fixed seat 1. Due to the friction between the upper part of the connecting member 31 and the constraint member 32, and the friction between the lower end of the constraint member 32 and the fixed seat 1, the constraint member 32 remains relatively stationary relative to the fixed seat 1 and the connecting member 31. This allows the constraint member 32 to hold the connecting member 31 in place around pivot B and maintain its current state. Furthermore, the constraint contact part 321 of the constraint member 32 engages with the movable seat 2 to restrict the movable seat 2 from flipping towards the vehicle side around pivot A. When the vehicle is connected to the movable seat 2, the weight of the vehicle further acts on the movable seat 2, and the width between the two movable seats 2 remains unchanged due to the connection width of the vehicle.

[0060] In addition, the upper part of the constraint member 32 is always subjected to the downward force of the connecting member 31, while the lower end of the constraint member 32 always acts upward on the fixed seat 1, so that the connecting member 31 is stuck by the constraint member 32 and cannot rotate around the pivot B, thus achieving a stable connection.

[0061] like Figures 1-11 As shown, the present invention discloses a trolley frame, including a frame body 100 and a connector as described above, which is adjustable to accommodate the width of a vehicle. The fixing seat 1 is fixedly or detachably connected to the frame body 100. This trolley frame, using the aforementioned connector, can adapt to vehicles of various widths. When a vehicle is connected to it, the vehicle's posture remains stable and the connection is reliable. This provides a compatible connection solution for connecting the trolley frame to vehicles of different widths, facilitating selection and use according to individual needs.

[0062] like Figure 8 , 9 As shown, the two connectors are respectively located on the left and right sides of the frame body 100, and the lateral spacing between the two movable seats 2 is adjustable; the movable seat 2 has at least a first position and a second position. When both movable seats 2 are in the first position, the lateral spacing between the two movable seats 2 is the largest, and when both movable seats 2 are in the second position, the lateral spacing between the two movable seats 2 is the smallest.

[0063] like Figure 10 , 11 As shown, in order to meet the usage needs of different usage scenarios and enhance the market competitiveness of the product, it also includes a carrier 200. The movable seat 2 is relatively fixed or detachably connected to the carrier 200. The carrier 200 is a baby carrier, a bassinet, a seat frame, or a child safety seat.

[0064] When the carrier is connected to the stroller frame via a connector, it can be used as a children's stroller, shopping cart, pet stroller, etc., achieving the multi-functionality of one vehicle for multiple uses.

Claims

1. A connector adjustable to accommodate the width of a vehicle, for connecting a trolley frame to a vehicle (200), characterized in that... include: A fixed seat (1) is used to connect directly or indirectly to the trolley frame, and the fixed seat (1) is provided with an adjustment guide (11). Movable seat (2), the movable seat (2) having a connected state to be directly or indirectly connected to the carrier (200); A connecting component (3) is located between a fixed seat (1) and a movable seat (2) for adjusting the movement of the movable seat (2) relative to the fixed seat (1). The connecting component (3) includes a connector (31) and a constraint (32) arranged at inclinations to each other. The lower end of the connector (31) is hinged to the fixed seat (1) via a pivot B, and the upper end of the connector (31) is hinged to the movable seat (2) via a pivot A. A connecting guide (31) is provided on the connector (31). 1); The lower end of the constraint member (32) is movably connected to the fixed seat (1) and constrained by the adjustment guide (11). The upper part of the constraint member (32) is slidably constrained in the connection guide (311) so that the constraint member (32) is inclined and cross-arranged relative to the connecting member (31). The upper end of the constraint member (32) has a constraint abutment (321) which is used to abut against the lower part of the movable seat (2) so that the movable seat (2) remains in the connected state.

2. The connector adjustable to accommodate the width of a carrier according to claim 1, characterized in that... The lower end of the constraint member (32) is rotatably and slidably connected to the fixed seat (1) and constrained by the adjustment guide (11). The connection guide (311) is a connection guide hole inclinedly provided on the connector (31). The perpendicular line between the pivot A and the pivot B intersects the central axis of the connection guide (311). When the adjustment movable seat (2) moves to a predetermined position relative to the fixed seat (1), the lower end of the constraint member (32) can move and stop relative to the fixed seat (1) along the adjustment guide (11). The upper part of the constraint member (32) extends into the connection guide (311) and interacts with each other to restrict the connector (31) from rotating around the pivot B. At the same time, the constraint contact part (321) abuts against the movable seat (2) to keep the movable seat (2) connected.

3. The connector adjustable to accommodate the width of a carrier according to claim 2, characterized in that... The constraint contact part (321) is exposed in the connection guide hole and abuts against the lower part of the movable seat (2), so that the movable seat (2) is in the connected state.

4. The connector adjustable to accommodate the width of a carrier according to claim 1, characterized in that... The adjustment guide (11) is an adjustment guide groove (111) inclinedly set on the fixed seat (1). The lower end of the constraint member (32) is provided with a positioning guide pin (322) that is rotatably and slidably placed in the adjustment guide groove (111). The movable seat (2) has a first gear position and a second gear position. When the movable seat (2) is in the first gear position, the positioning guide pin (322) is placed at one end of the adjustment guide groove (111). When the movable seat (2) is in the second gear position, the positioning guide pin (322) is placed at the other end of the adjustment guide groove (111).

5. The connector adjustable to accommodate the width of a carrier according to claim 4, characterized in that... The adjustment guide (11) also includes a positioning slot (112), which is located on the fixed base (1) and connected to the adjustment guide groove (111). The positioning guide pin (322) can be stopped in the positioning slot (112).

6. The connector adjustable to accommodate the width of a carrier according to claim 4, characterized in that... A first limiting structure (4) is provided between the connector (31) and the fixed seat (1) to limit the connector (31) relative to the fixed seat (1) when the movable seat (2) is in the first position. The first limiting structure (4) includes a first limiting fixed part (41) and a first limiting movable part (42) disposed between the fixed seat (1) and the connector (31) and capable of mutually blocking each other.

7. The connector adjustable to accommodate the width of a vehicle according to claim 4, characterized in that... A second limiting structure (5) is provided between the connector (31) and the constraint member (32) to restrict the rotation of the connector (31) relative to the fixed seat (1) when the movable seat (2) is not in the first position. The second limiting structure (5) includes a second limiting fixed part (51) and a second limiting movable part (52) provided between the connecting guide part (311) and the constraint member (32) and which can block each other.

8. A connector adjustable to accommodate the width of a vehicle according to any one of claims 1-7, characterized in that... A guide assembly (6) is provided between the connector (31) and the movable seat (2). The guide assembly (6) includes a guide rod (61) and a guide arc hole (62). The guide arc hole (62) is located on the movable seat (2), and the guide rod (61) is located on the upper end of the connector (31) and is guided and cooperates with the guide arc hole (62).

9. The connector adjustable to accommodate the width of a vehicle according to claim 8, characterized in that... The movable seat (2) has a first gear position and a second gear position; the guide arc hole (62) has a first limiting wall (621) and a second limiting wall (622). When the movable seat (2) is in the first gear position, the guide rod (61) is in blocking engagement with the first limiting wall (621). When the movable seat (2) is in the second gear position, the guide rod (61) is in blocking engagement with the second limiting wall (622).

10. The connector adjustable to accommodate the width of a vehicle according to claim 1, characterized in that... An elastic element is provided between the connector (31) and the fixed seat (1) to drive the connector (31) relative to the fixed seat (1), so that the constraint element (32) keeps the connector (31) locked and restricts the connector (31) from rotating relative to the fixed seat (1).

11. The connector adjustable to accommodate the width of a vehicle according to claim 1, characterized in that... Each of the movable seats (2) has at least a first position and a second position. When both movable seats (2) are in the first position, the lateral distance between the two movable seats (2) is the largest. When both movable seats (2) are in the second position, the lateral distance between the two movable seats (2) is the smallest. When the movable seat (2) is not in the first position, the connecting member (31) and the constraint member (32) are both placed obliquely between the fixed seat (1) and the movable seat (2). When the movable seat (2) is adjusted to a position other than the first position, the upper part of the constraint member (32) and the connecting guide (311) form a blocking limit, so that the constraint member (32) and the connecting member (31) are locked to each other, thereby restricting the rotation of the connecting member (31) relative to the fixed seat (1).

12. The connector adjustable to accommodate the width of a carrier according to claim 11, characterized in that... The adjustment guide (11) is an adjustment guide groove (111) inclinedly disposed on the fixed base (1). The adjustment guide (11) includes a plurality of positioning slots (112) disposed on the fixed base (1) and communicating with the adjustment guide groove (111). The lower end of the constraint member (32) is rotatably and slidably placed in the adjustment guide groove (111) and is positioned and cooperated with the corresponding positioning slots (112).

13. A stroller frame, characterized in that... Includes a frame body (100) and a connector adjustable to adapt to the width of a vehicle as described in any one of claims 1-12, wherein the mounting base (1) is fixedly or detachably connected to the frame body (100).

14. A trolley frame according to claim 13, characterized in that... The two connectors are respectively located on the left and right sides of the frame body (100), and the lateral spacing of the movable seats (2) on both sides is adjustable; the movable seats (2) have at least a first position and a second position. When both movable seats (2) are in the first position, the lateral spacing between the two movable seats (2) is the largest, and when both movable seats (2) are in the second position, the lateral spacing between the two movable seats (2) is the smallest.

15. A trolley frame according to claim 13, characterized in that... It also includes a carrier (200), wherein the movable seat (2) is fixedly or detachably connected to the carrier (200), the carrier (200) being a baby carrier, a bassinet, a seat frame, or a child safety seat.

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