Linked Bases, Transporters, and Child Carriers

Abstract

The present application relates to a connecting base (10), a transport device (100), and a child carrier (1000). The connecting base (10) includes a main body (1) and a locking member (2), a driving member (3), and a retaining member (4) attached to the main body (1). The locking member (2) has a locked position and an unlocked position. The driving member (3) is coupled to the locking member (2) and is configured to drive the locking member (2) to move from the locked position to the unlocked position. When the locking member (2) moves to the unlocked position, the retaining member (4) locks the driving member (3) and retains the locking member (2) in the unlocked position.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS

[0001] This application claims priority to Chinese Patent Application No. 2022117305919, filed on December 30, 2022, the entire contents of which are incorporated herein by reference. [Technical Field]

[0002] TECHNICAL FIELD This application relates to a connecting base, a transport device, and a child carrier. [Background technology]

[0003] A stroller typically includes a carrycot and a frame. The carrycot is typically removably attached to the frame for easy storage. More specifically, a mounting base is attached to the frame, and the mounting base is provided with a locking hole. A connecting base is attached to the carrycot, and the connecting base is provided with a locking member. The connecting base is adapted to be inserted into and cooperate with the mounting base (also referred to as a snap fit). The locking member is adapted to be inserted into and cooperate with the locking hole to securely support the carrycot on the frame. The carrycot is further provided with an unlocking button. The unlocking button is used to drive the locking member to move out of the locking hole to facilitate removal of the carrycot from the frame.

[0004] When the carrycot needs to be removed from the frame, the user must bend down and press the unlock button with both hands to drive the locking member and move it out of the locking hole. The user can then lift the carrycot upward while pressing the unlock button with both hands to separate the carrycot from the frame. If the user accidentally releases the unlock button before lifting the carrycot from the frame, the locking member is easily reinserted into the locking hole. To successfully remove the carrycot, the user must press the unlock button again and lift the carrycot. Summary of the Invention

[0005] In one aspect, the present application provides a coupling base including a body, a locking member attached to the body, the locking member having a locked position and an unlocked position, a drive member attached to the body and coupled to the locking member, the drive member configured to drive the locking member to move from the locked position to the unlocked position, and a retaining member attached to the body, wherein when the locking member moves to the unlocked position, the retaining member is configured to lock the drive member to retain the locking member in the unlocked position.

[0006] In one embodiment, the retaining member is movably disposed on the body and has an extended position and a retracted position. When the retaining member is in the retracted position and the locking member moves from the locked position to the unlocked position, the retaining member engages and locks the drive member. When the retaining member moves toward the extended position, the retaining member disengages from the drive member.

[0007] In one embodiment, the coupling base further includes a first reset member configured to drive the retention member to move toward the extended position.

[0008] In one embodiment, the locking member is movable relative to the body between a locked position and an unlocked position, the direction of movement of the locking member being parallel to the direction of movement of the retaining member.

[0009] In one embodiment, the coupling base further includes a second reset member configured to drive the locking member to move toward the locked position.

[0010] In one embodiment, the coupling base further includes a third reset member configured to drive the drive member to reset when the retaining member disengages from the drive member.

[0011] In one embodiment, the body includes a receiving cavity. The drive member is mounted in the receiving cavity. A cavity wall of the receiving cavity has a first hole and a second hole. The retaining member is movably disposed in the first hole. The locking member is movably disposed in the second hole. The direction of movement of the locking member is parallel to the direction of movement of the retaining member and perpendicular to the direction of movement of the drive member.

[0012] In one embodiment, a driven pin is attached to the locking member. The axial direction of the driven pin, the direction of movement of the locking member, and the direction of movement of the drive member are perpendicular to one another. The drive member includes at least one drive ramp. The drive ramp abuts against the driven pin, and the abutment of the drive ramp against the driven pin drives the locking member to move from the locked position to the unlocked position.

[0013] In one embodiment, the drive member has a frame-like structure. The retaining member and the locking member are located on the frame-like structure. The frame-like structure includes two opposing side plates. Each side plate has a drive hole. A drive ramp is formed on the hole wall of each drive hole.

[0014] In one embodiment, the drive member includes a support extending from the receiving cavity.

[0015] In one embodiment, the retaining member is provided with a stopper located in the receiving cavity.

[0016] In one embodiment, the direction of movement of the retaining member is perpendicular to the direction of movement of the drive member. The retaining member includes at least one first engagement portion. The drive member includes at least one second engagement portion. When the retaining member is in the retracted position and the locking member is in the locked position, each of the at least one first engagement portion moves on the movement path of the corresponding second engagement portion.

[0017] In one embodiment, when the retaining member is in the retracted position and the drive member is driven to move the locking member toward the unlocked position, each of the at least one second engagement portion moves past the corresponding first engagement portion and then engages with the first engagement portion.

[0018] In one embodiment, when the retention member moves from the retracted position to the extended position, each of the at least one first engagement portion moves out of the path of movement of the corresponding second engagement portion.

[0019] In one embodiment, the drive member includes two opposing side plates. At least one second engagement portion is provided on each side plate. The retaining member is located between the two side plates. The retaining member includes at least two first engagement portions. One of the at least two first engagement portions engages with a second engagement portion on one of the two side plates, and the other of the at least two first engagement portions engages with a second engagement portion on the other of the two side plates.

[0020] In one embodiment, the retaining member includes at least one first resilient arm, and the at least one first engaging portion is disposed on the at least one first resilient arm.

[0021] In one embodiment, the drive member includes at least one second resilient arm, and the at least one second engagement portion is disposed on the at least one second resilient arm.

[0022] In another aspect, the present application provides a transport device including a link base as described above.

[0023] In one embodiment, the transporter further includes a towing member and an unlock button coupled to the drive member via the towing member.

[0024] In one embodiment, the transport device includes an upper frame, a lower frame, and a folding mechanism coupled between the upper and lower frames, the folding mechanism being deployable to allow the upper and lower frames to move away from one another, and the folding mechanism being foldable to allow the upper and lower frames to move toward one another.

[0025] In one embodiment, the foldable mechanism includes a first upper bracket, an upper end of which is coupled to the upper frame and a lower end of which includes two first lugs; a first lower bracket, an upper end of which includes a second lug located between the two first lugs and a lower end of which is pivotally coupled to the lower frame; and a first pivot shaft extending through the first lug and the second lug to enable the first upper bracket to be pivotally coupled to the first lower bracket.

[0026] In yet another aspect, the present application provides a child carrier including a main frame including a mounting base, the mounting base being removably coupled to a connecting base, the mounting base having a locking hole corresponding to a locking member.

[0027] The drawings forming a part of this application are used to provide a further understanding of this application. The exemplary embodiments of this application and their description are used to explain this application and do not constitute undue limitations of this application. [Brief explanation of the drawings]

[0028] [Figure 1] 1 is a perspective view of a child carrier according to one embodiment of the present application; [Figure 2] FIG. 2 is a perspective view of the carrier device shown in FIG. [Figure 3] FIG. 3 is an exploded view of the connecting base shown in FIG. 2. [Figure 4] FIG. 3 is a front view of the transport device shown in FIG. 2. [Figure 5] FIG. 5 is an enlarged cross-sectional view of a portion A shown in FIG. [Figure 6] 5 is a partial cross-sectional view taken along line BB shown in FIG. 4 with the locking member in a locked position and the retaining member in an extended position. [Figure 7] 5 is a partial cross-sectional view taken along line CC shown in FIG. 4 with the locking member in a locked position and the retaining member in an extended position. [Figure 8] FIG. 3 is a rear view of the connecting base of FIG. 2, with the cover plate omitted to facilitate illustration of the internal structure of the connecting base, showing the locking member in the locked position, the retaining member in the extended position, and the drive member in the initial position. [Figure 9] 5 is a partial cross-sectional view taken along line CC shown in FIG. 4, with the locking member in a locked position and the holding member in a retracted position. [Figure 10] FIG. 3 is a rear view of the connecting base shown in FIG. 2, with the cover plate omitted to facilitate illustration of the internal structure of the connecting base, with the locking member in the locked position, the retaining member in the retracted position, and the drive member in the initial position. [Figure 11] 5 is a partial cross-sectional view taken along line DD shown in FIG. 4 with the locking member in the locked position and the retaining member in the retracted position. [Figure 12] FIG. 5 is a rear view of the connecting base shown in FIG. 4, with the cover plate omitted to facilitate illustration of the internal structure of the connecting base, showing the locking member in an unlocked position, the retaining member in a retracted position, and the drive member in a position locked by the retaining member. [Figure 13] 5 is a cross-sectional perspective view taken along line CC shown in FIG. 4, with the locking member in an unlocked position and the holding member in a retracted position. [Figure 14] FIG. 10 is a perspective view of a driving member according to another embodiment. [Figure 15] FIG. 5 is a cross-sectional perspective view taken along line EE shown in FIG. [Figure 16] FIG. 16 is a cross-sectional perspective view taken along line FF shown in FIG. DETAILED DESCRIPTION OF THE INVENTION

[0029]

[0023] The following describes embodiments of the present invention more fully with reference to the accompanying drawings. However, various embodiments of the present invention may be embodied in many different forms and should not be construed as being limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. Elements identified with the same or similar reference numerals refer to the same or similar elements.

[0030] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and / or "comprising," when used herein, specify the presence of stated features, integers, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof.

[0031] When an element is referred to as being "connected" or "coupled" to another element, it will be understood that it may be directly connected or coupled to the other element, or intervening elements may be present. In contrast, when an element is referred to as being "directly connected" or "directly coupled" to another element, there are no intervening elements present.

[0032] In this specification, terms such as "first," "second," etc. may be used to describe various elements, but it should be understood that these elements should not be limited by these terms. These terms are used only to distinguish one element from another. Thus, a first element could be called a second element without departing from the teachings of the present invention.

[0033] Unless otherwise expressly specified and defined, the terms "front," "rear," "left," "right," and other directional terms in the embodiments of the present application are based on the "front," "rear," "left," and "right" directions of a child carrier as normally used, and it should be noted that in the drawings, arrows H and P are used to generally indicate the "front" and "rear" directions, and arrows L and R are used to generally indicate the "left" and "right" directions. These directional terms are used only to make the description of the embodiments of the present application clearer, and are not used to unduly limit the scope of protection of the present application.

[0034] FIG. 1 schematically illustrates a child carrier 1000 according to an embodiment of the present application. The child carrier 1000 includes a main frame 200 and a transport device 100 according to an embodiment of the present application. The main frame 200 is supportable on the ground and configured to support the transport device 100. The main frame 200 includes a mounting base 90. The transport device 100 includes a connection base 10 according to an embodiment of the present application. The connection base 10 is removably connected to the mounting base 90 (e.g., by a removable snap fit), thereby removably connecting the transport device 100 to the main frame 200. In the embodiment of the present application, the child carrier 1000 will be specifically described using a stroller as an example. The main frame 200 is specifically a frame of a stroller, and the transport device 100 may be a carrycot, a stroller seat, a baby carrier, or the like. In some alternative embodiments, the type of the child carrier 1000 is not limited to the stroller shown in the figure. For example, the child carrier 1000 may be a child high chair or other child product. It is understood that the types of the main frame 200 and the transport device 100 are arranged according to the specific type of the child carrier 1000. Furthermore, the application range of the connecting base 10 according to the embodiment of the present application is not limited to the transport device 100, and the application range of the transport device 100 is not limited to the child carrier 1000. The connecting base 10 and the transport device 100 may be applied to any suitable product.

[0035] 1 , in some embodiments, the main frame 200 has a basically symmetrical structure, and the transport device 100 also has a basically symmetrical structure. Two mounting bases 90 are disposed on the left and right sides of the main frame 200, respectively, and two connecting bases 10 are disposed on the left and right sides of the transport device 100, respectively. Each mounting base 90 is connected to a corresponding connecting base 10. The mounting base 90 is provided with a locking hole 910 configured to cooperate with the locking member 2 of the connecting base 10.

[0036] 1 and 2, the carrycot-shaped carrier device 100 includes an upper frame 81, a lower frame 82, a first foldable mechanism 83, a second foldable mechanism 84, and a handle 85. The upper frame 81 may be surrounded by a plurality of tubes. The handle 85 is attached to the upper frame 81. The lower frame 82 may be a plate made of wood, plastic, or the like. The left and right sides of the upper frame 81 are connected to the left and right sides of the lower frame 82 by the first foldable mechanism 83, respectively. The front and rear sides of the upper frame 81 are connected to the front and rear sides of the lower frame 82 by the second foldable mechanism 84, respectively. Thus, the upper frame 81, the lower frame 82, the unfolded first foldable mechanism 83, and the unfolded second foldable mechanism 84 together enclose a living space for the child. In actual use, the sides and bottom of the living space enclosed by the upper frame 81 and the lower frame 82 can be covered with seat cushions, and a mat can be placed on the lower frame 82. When the transport device 100 needs to be stored, the first foldable mechanism 83 and the second foldable mechanism 84 can be folded, thereby reducing the distance between the upper frame 81 and the lower frame 82 and reducing the volume of the transport device 100. Exemplary structures of the first foldable mechanism 83 and the second foldable mechanism 84 will be described below.

[0037] 2 and 3, the transport device 100 according to the embodiment of the present application is provided with two connection bases 10 on both sides. The connection bases 10 are attached to the lower frame 82 and connected to corresponding mounting bases 90. The transport device 100 has a substantially symmetrical structure. The configuration of the connection bases 10 will be described in detail below, taking the connection base 10 on the left side as an example.

[0038] 2 and 3, the connection base 10 includes a main body 1, and a locking member 2, a driving member 3, and a retaining member 4 attached to the main body 1. In some embodiments, the main body 1 may include a vertical portion 11 and a horizontal portion 12. The vertical portion 11 is connected to the mounting base 90, and the horizontal portion 12 is connected to the lower frame 82. In some embodiments, a flange 111 is disposed on the side of the vertical portion 11 facing the mounting base 90. The flange 111 surrounds a first slot 101. The mounting base 90 can be inserted into the first slot 101 from the bottom of the first slot 101. The configuration of the main body 1 is not limited to the above example.

[0039] 2 , in some embodiments, the locking member 2 is movably disposed on the vertical portion 11 of the main body 1. The locking member 2 has a locked position and an unlocked position. When the locking member 2 is in the locked position, the locking member 2 can be inserted into the locking hole 910 of the mounting base 90, thereby locking the relative positions of the connecting base 10 and the mounting base 90. When the locking member 2 is in the unlocked position, the locking member 2 is completely pulled out of the locking hole 910, in which case the connecting base 10 can be separated from the mounting base 90.

[0040] 2 and 3 , in some embodiments, the vertical portion 11 includes a receiving cavity 110. The receiving cavity 110 includes an opening 1100 facing the right side of the connecting base 10. The opening 1100 can be closed by a cover plate 13. The cover plate 13 can be attached to the vertical portion 11 via a fastener. A second hole 1102 is provided in the cavity wall of the receiving cavity 110. The second hole 1102 communicates with the first slot 101. The locking member 2 enters the receiving cavity 110 through the opening 1100, and the locking member 2 is movably inserted into the second hole 1102. When the locking member 2 is in the locked position, the locking tongue end 2 a of the locking member 2 protrudes into the first slot 101 relative to the second hole 1102 and is inserted into the locking hole 910 of the mounting base 90. When the locking member 2 is in the unlocked position, the locking tongue end 2 a of the locking member 2 retracts into the second hole 1102, and the locking member 2 is disengaged from the locking hole 910. In some embodiments, a second channel wall 1121 is disposed in the receiving cavity 110. The second channel wall 1121 is in sliding engagement with the locking member 2. The second channel wall 1121 supports the locking member 2 while guiding the extension and retraction of the locking member 2.

[0041] Referring to FIG. 3 , the connection base 10 may further include a second reset member 52. The second reset member 52 is configured to drive the lock member 2 to move to the locked position. In some embodiments, the second reset member 52 may be, for example, a spring attached to the receiving cavity 110. The second reset member 52 may be sandwiched between the lock member 2 and the cover plate 13. To facilitate positioning of the second reset member 52, the lock member 2 may be provided with a positioning hole 202, and the cover plate 13 may be provided with a positioning post 132 (see FIG. 6 ). One end of the second reset member 52 extends into the positioning hole 202, and the other end of the second reset member 52 is attached to the positioning post 132. In some alternative embodiments, the second reset member 52 may be implemented in many ways, as long as it can directly or indirectly act on the lock member 2 to apply a force to the lock member 2 and move the lock member 2 toward the locked position.

[0042] Referring to FIG. 3 , the drive member 3 is operably coupled to the lock member 2 and is configured to drive the lock member 2 to move from the locked position to the unlocked position. In some embodiments, the drive member 3 is attached to the receiving cavity 110 through an opening 1100. The drive member 3 abuts against the lock member 2. When pressed, the drive member 3 can move within the receiving cavity 110, thereby pushing the lock member 2 to move from the locked position to the unlocked position. In some embodiments, the movement direction of the drive member 3 is perpendicular to the movement direction of the lock member 2. Any suitable conversion mechanism may be provided between the drive member 3 and the lock member 2, as long as the movement of the drive member 3 can be converted into the movement of the lock member 2.

[0043] FIG. 3 shows an exemplary structure of the drive member 3 and the lock member 2. The drive member 3 has a frame-like structure including two opposing first side plates 31 and two second side plates 32 connected between the two first side plates 31. Each of the first side plates 31 has a drive hole 310. At least one drive slope 311 is formed on the hole wall of each drive hole 310. For example, a support portion 321 is disposed on one of the second side plates 32. An external force can exert an unlocking force on the drive member 3 via the support portion 321. The lock member 2 is located in the frame-like structure. A driven pin 21 is attached to the through hole 201 of the lock member 2. The axial direction of the driven pin 21 is perpendicular to both the movement direction of the lock member 2 and the movement direction of the drive member 3. Both ends of the driven pin 21 extend into the drive holes 310 of the two first side plates 31, respectively, and abut against the drive ramps 311. When an external force exerts an unlocking force on the support portion 321, the drive ramps 311 push the driven pin 21 while the drive member 3 moves within the receiving cavity 110, driving the lock member 2 to move to the unlocked position. The embodiments of the drive member 3 and the lock member 2 are not limited to the above example, as long as the drive member 3 can drive the lock member 2 to move from the locked position to the unlocked position.

[0044] Continuing to refer to FIG. 3 , in some embodiments, the connection base 10 may further include a third reset member 53. When the external force driving the movement of the drive member 3 is removed, the third reset member 53 can reset the drive member 3. When the drive member 3 is reset, the lock member 2 can be moved to the locked position by the action of the second reset member 52. In some embodiments, the third reset member 53 may be, for example, a spring attached to the receiving cavity 110, and the third reset member 53 is sandwiched between the cavity wall of the receiving cavity 110 and the second side plate 32 (see FIG. 6 ). In some alternative embodiments, the third reset member 53 may be implemented in many ways as long as it can directly or indirectly act on the drive member 3 to reset it.

[0045] It should be noted that in some alternative embodiments, when the third reset member 53 resets the drive member 3, the drive member 3 can drive the lock member 2 to move toward the locked position. Alternatively, when the second reset member 52 drives the lock member 2 to move toward the locked position, the lock member 2 can be driven to reset the drive member 3. In this case, one of the second reset member 52 and the third reset member 53 can be omitted.

[0046] 4 to 6, an exemplary structure configured to apply an external force to the drive member 3 is shown. In some embodiments, the transport device 100 may further include a traction member 6 and an unlocking button 7. The traction member 6 includes a rope 61 and a protective layer 62 that wraps around the outside of the rope 61. A first end 611 of the rope 61 is connected to the support portion 321 of the drive member 3, and a second end 612 of the rope 61 is connected to a slider 67. The slider 67 is operably connected to the unlocking button 7. The slider 67 is attached to the tube body of the upper frame 81. The unlocking button 7 is attached to the upper frame 81 so that a user can perform the unlocking operation without bending over. Referring to FIG. 5, in some embodiments, the unlocking button 7 extends into the slider 67. The unlocking button 7 includes a first inclined surface 71, and the slider 67 includes a second inclined surface 671. The first inclined surface 71 and the second inclined surface 671 are slidably fitted together. When the unlock button 7 is pressed, the unlock button 7 moves downward while pushing the slider 67, allowing it to move within the tube body of the upper frame 81. The movement of the slider 67 is transmitted to the drive member 3 via the traction member 6. After receiving an external force (more specifically, a pulling force) from the traction member 6, the drive member 3 drives the lock member 2 to move toward the unlocked position. It should be understood that the method of applying the external force to the drive member 3 is not limited to the above example. For example, in some alternative embodiments, the support portion 321 of the drive member 3 can extend directly from the receiving cavity 110 for user operation, thereby eliminating structures such as the traction member 6 and the unlock button 7. In addition, in some alternative embodiments, the support portion 321 may include an operating handle. A user can manually and directly operate the operating handle to drive and move the drive member 3. It should be noted that although the above embodiments are illustrated with the drive member 3 driving the locking member 2 to move to the unlocked position when subjected to a pulling force, in some alternative embodiments the drive member 3 may drive the locking member 2 to move towards the unlocked position when subjected to a pushing or compressing force.

[0047] Referring again to FIG. 3 , in some embodiments, the retaining member 4 is movably disposed on the vertical portion 11 of the main body 1. The retaining member 4 is configured to lock the drive member 3 so as to hold the locking member 2 in the unlocked position when the drive member 3 drives the locking member 2 to move from the locked position to the unlocked position. The retaining member 4 can be implemented in various ways. In some embodiments, the retaining member 4 is telescopic with respect to the main body 1 and has an extended position and a retracted position. The movement direction of the retaining member 4 is parallel to the movement direction of the locking member 2. Referring again to FIGS. 3 , 6 , and 7 , in some embodiments, the cavity wall of the receiving cavity 110 is provided with a first hole 1101. The first hole 1101 communicates with the first slot 101. The retaining member 4 enters the receiving cavity 110 through the opening 1100, and the retaining member 4 is movably disposed in the first hole 1101. When the connection base 10 is separated from the mounting base 90, the retaining member 4 is in an extended position, and the abutting end 4 a of the retaining member 4 extends into the first slot 101 relative to the first hole 1101 so as to be pressed by the mounting base 90. In some embodiments, a first channel wall 1111 is provided in the receiving cavity 110. The first channel wall 1111 is in sliding engagement with the retaining member 4. The first channel wall 1111 supports the retaining member 4 while guiding the extension and contraction of the retaining member 4. In some embodiments, the first channel wall 1111 and the second channel wall 1121 may partially overlap.

[0048] 9 and 10, FIG. 9 is a partial cross-sectional view taken along line CC in FIG. 4, and FIG. 10 is a rear view of the connection base 10 shown in FIG. 4, i.e., a right side view of the connection base 10 located on the left side in FIG. 2. To facilitate illustration of the internal structure of the connection base 10, the cover plate is omitted from FIG. 10. In FIGS. 9 and 10, the locking member 2 is in the locked position, the holding member 4 is in the retracted position, and the driving member 3 is in the initial position. When the connection base 10 is connected to the mounting base 90, the abutting end 4a of the holding member 4 is pressed against the mounting base 90 and moves to the retracted position (the mounting base 90 does not have a hole corresponding to the holding member 4), and the locking member 2 is inserted into the lock hole 910. Referring to FIGS. 11 to 13, FIG. 11 is a partial cross-sectional view taken along line DD in FIG. 4, and FIG. 12 is a rear view of the connection base 10 shown in FIG. 4, i.e., a right side view of the connection base 10 located on the left side in FIG. 2. To facilitate illustrating the internal structure of the connecting base 10, the cover plate is omitted from FIG. 12. FIG. 13 is a cross-sectional perspective view taken along line CC shown in FIG. 4. In FIGS. 11 to 13, the locking member 2 is in the unlocked position, the holding member 4 is in the retracted position, and the driving member 3 is in a position locked to the holding member 4. After the connecting base 10 is connected to the mounting base 90 and the driving member 3 drives the locking member 2 to move it from the locked position to the unlocked position, the holding member 4 in the retracted position can prevent the driving member 3 from being reset to its initial position, thereby holding the locking member 2 in the unlocked position.

[0049] More specifically, when it is necessary to remove the connecting base 10 from the mounting base 90, the unlock button 7 is pressed to apply an unlocking force to the driving member 3. When the driving member 3 drives the locking member 2 to move from the locked position to the unlocked position, the retaining member 4, which is in the retracted position, engages with the driving member 3, locking the position of the driving member 3. In this case, even if the unlock button 7 is released, the driving member 3 is blocked by the retaining member 4 and is not reset to its initial position, and the locking member 2 is held in the unlocked position. In this case, the user can lift the carrying device 100 without continuing to press the unlock button 7, thereby separating the connecting base 10 from the mounting base 90. By providing the retaining member 4, the user does not need to consider simultaneously pressing the unlock button 7 and lifting the carrying device 100 when removing the carrying device 100. Instead, the user can simply press the unlock button 7 and gradually lift the carrying device 100, significantly improving the convenience of the operation of removing the carrying device 100.

[0050] It will be appreciated that when the connecting base 10 is detached from the mounting base 90, the retaining member 4 is no longer pressed by the mounting base 90 and can be moved towards the extended position by the action of the first reset member 51 and disengaged from the drive member 3, i.e., the retaining member 4 in the extended position no longer blocks the movement of the drive member 3. In this case, the drive member 3 can be reset to its initial position by the action of the third reset member 53, the locking member 2 can be moved to the locked position by the action of the second reset member 52, the connecting base 10 can be reconnected to the mounting base 90, and the relative positions of the connecting base 10 and the mounting base 90 are locked by the locking member 2.

[0051] Continuing to refer to FIG. 3 , an exemplary coupling structure between the drive member 3 and the retaining member 4 is shown. The retaining member 4 is located on a frame-like structure of the drive member 3. The retaining member 4 includes at least one first engagement portion 41. The first engagement portion 41 can be an engagement block or a hook. The drive member 3 includes at least one second engagement portion 312. The second engagement portion 312 can be an engagement block or a boss. When the first engagement portion 41 engages with the second engagement portion 312, the drive member 3 is locked. More specifically, in some embodiments, at least one second engagement portion 312 is disposed on each of the two first side plates 31 of the drive member 3. The retaining member 4 includes at least two first engagement portions 41. One of the at least two first engagement portions 41 engages with a second engagement portion 312 on one of the first side plates 31, and another of the at least two first engagement portions 41 engages with a second engagement portion 312 on the other of the first side plates 31. When the retaining member 4 is in the retracted position and the locking member 2 is in the locked position, each of the first engagement portions 41 moves on the movement path of the corresponding second engagement portion 312. When the retaining member 4 is in the retracted position and the driving member 3 drives the locking member 2 to move toward the unlocked position, each of the second engagement portions 312 passes over the corresponding first engagement portion 41 and then engages with the first engagement portion 41. The position of the driving member 3 is locked by the retaining member 4, and the locking member 2 is held in the unlocked position. When the holding member 4 is no longer pressed against the mounting base 90 and moves from the retracted position to the extended position, each of the first engagement portions 41 moves out of the movement path of the corresponding second engagement portion 312, the driving member 3 is reset to its initial position by the action of the third reset member 53, and the locking member 2 moves to the locked position by the action of the second reset member 52.

[0052] Referring again to FIG. 3 , in some embodiments, the retaining member 4 includes at least one first elastic arm 42. At least one first engagement portion 41 is disposed on the at least one first elastic arm 42. In this manner, when each of the second engagement portions 312 passes over the corresponding first engagement portion 41, the first elastic arm 42 can be elastically deformed, thereby reducing the resistance experienced by the second engagement portion 312 when passing over the first engagement portion 41. Referring to FIG. 14 , in some alternative embodiments, the drive member 3 includes at least one second elastic arm 313. At least one second engagement portion 312 is disposed on the at least one second elastic arm 313. The second elastic arm 313 is elastically deformable, thereby reducing the resistance experienced by the second engagement portion 312 when passing over the first engagement portion 41. In some embodiments, the retaining member 4 may be provided with a stopper 43. The stopper 43 is located in the receiving cavity 110 and is used to prevent the holding member 4 from slipping out of the first hole 1101. For example, the stopper 43 is disposed on each of the first elastic arms 42. The stopper 43 and the first engagement portion 41 can be located on both ends of the corresponding first elastic arm 42.

[0053] Referring to FIG. 3 , the connecting base 10 may further include a first reset member 51. The first reset member 51 is configured to drive the holding member 4 to move to the extended position. In some embodiments, the first reset member 51 may be a spring attached to the receiving cavity 110. The first reset member 51 may be sandwiched between the holding member 4 and the cover plate 13. To facilitate fixing the first reset member 51, a positioning hole 401 is disposed in the holding member 4, and a positioning post 131 is disposed in the cover plate 13 (see FIG. 6 ). One end of the first reset member 51 extends into the positioning hole 401, and the other end of the first reset member 51 is attached to the positioning post 131. In some alternative embodiments, the first reset member 51 may be implemented in many ways, as long as it can directly or indirectly act on the holding member 4 to apply a force to the holding member 4 and move the holding member 4 toward the extended position.

[0054] Next, the steps of attaching and detaching the connection base 10 of the transport device 100 will be briefly described with reference to FIGS.

[0055] 7 and 8, before the connecting base 10 is attached to the mounting base 90, both the locking member 2 and the retaining member 4 extend into the first slot 101. At this time, the locking member 2 is in the locked position, the retaining member 4 is in the extended position, and the driving member 3 is in the initial position due to the action of the third reset member 53. In the movement direction of the retaining member 4, the first engagement portion 41 is offset from the second engagement portion 312.

[0056] 9 and 10 , after the connection base 10 is connected to the mounting base 90, the locking member 2 is in the locked position and is connected to the locking hole 910 of the mounting base 90. The driving member 3 is in the initial position due to the action of the third reset member 53. Because no hole is provided at the position of the mounting base 90 corresponding to the holding member 4, the holding member 4 is pressed by the mounting base 90 and retracts into the receiving cavity 110. The holding member 4 moves to the retracted position, and the first engaging portion 41 moves into the movement path of the second engaging portion 312.

[0057] 11 to 13, when it is necessary to remove the connecting base 10 from the mounting base 90, the driving member 3 is pulled by the pulling member 6, and the driving member 3 drives the locking member 2 to move to the unlocked position. At the same time, the second engagement portion 312 of the driving member 3 passes the first engagement portion 41 and then engages with the first engagement portion 41. Then, the force exerted by the pulling member 6 on the driving member 3 is eliminated, and the first engagement portion 41 and the second engagement portion 312 remain engaged. This prevents the driving member 3 from resetting to its initial position, and the driving member 3 is locked by the holding member 4, and the locking member 2 is held in the unlocked position. The user can then lift the transport device 100 to remove the connecting base 10 from the mounting base 90.

[0058] After the connecting base 10 is removed from the mounting base 90, the retaining member 4 is no longer pressed by the mounting base 90, and therefore extends into the first slot 101 by the action of the first reset member 51. The retaining member 4 moves to the extended position, the first engagement portion 41 is offset from the second engagement portion 312 in the movement direction of the retaining member 4, and the retaining member 4 no longer affects the movement of the drive member 3. The drive member 3 is reset to its initial position by the action of the third reset member 53, and the locking member 2 moves to the locked position by the action of the second reset member 52, and the connecting base 10 is reset to the state shown in FIGS. 7 and 8.

[0059] 15 and 16 , an exemplary structure of the first foldable mechanism 83 is shown. Embodiments of the first foldable mechanism 83 are not limited to the following examples. The first foldable mechanism 83 includes a first upper bracket 831 and a first lower bracket 832. The upper end of the first upper bracket 831 is connected to the upper frame 81, and the lower end of the first upper bracket 831 includes two first lugs 8311. The upper end of the first lower bracket 832 includes second lugs 8321. The second lugs 8321 are located between the two first lugs 8311. The first pivot shaft 830 extends through the first lugs 8311 and the second lugs 8321, and the first upper bracket 831 is pivotally connected to the first lower bracket 832. The lower end of the first lower bracket 832 is pivotally connected directly or indirectly to the lower frame 82. In some embodiments, the pivot base 113 is disposed on the main body 1 of the connection base 10 , and the lower end of the first lower bracket 832 is pivotally connected to the pivot base 113 .

[0060] The second slot 8320 is disposed on a second lug 8321 of the first lower bracket 832. The first upper bracket 831 has a first sliding channel 8310. A first insertion plate 833 and a first elastic member 836 are disposed in the first sliding channel 8310. The first elastic member 836 is configured to push the lower end portion 8331 of the first insertion plate 833 to insert it into the second slot 8320. When the lower end portion 8331 of the first insertion plate 833 is inserted into the second slot 8320, relative rotation between the first upper bracket 831 and the first lower bracket 832 is restricted, and the first foldable mechanism 83 is maintained in the unfolded state. A handle 835 is provided on the first insertion plate 833. A user can retract the lower end portion 8331 of the first insertion plate 833 from the second slot 8320 by operating the handle 835. Then, the first upper bracket 831 and the first lower bracket 832 become rotatable relative to each other, and the first folding mechanism 83 can be folded.

[0061] Continuing with reference to FIGS. 15 and 16 , an exemplary structure of the second foldable mechanism 84 is shown. Embodiments of the second foldable mechanism 84 are not limited to the following example. The second foldable mechanism 84 has substantially the same structure as the first foldable mechanism 83 described above. The second foldable mechanism 84 includes a second upper bracket 841 and a second lower bracket 842. The upper end of the second upper bracket 841 is connected to the upper frame 81, and the lower end of the second upper bracket 841 includes two third lugs 8411. The upper end of the second lower bracket 842 includes a fourth lug 8421. The fourth lug 8421 is located between the two third lugs 8411. The second pivot shaft 840 extends through the third lug 8411 and the fourth lug 8421, and the second upper bracket 841 is pivotally connected to the second lower bracket 842. The lower end of the second lower bracket 842 is pivotally connected directly or indirectly to the lower frame 82 .

[0062] The third slot 8420 is disposed on the fourth lug 8421 of the second lower bracket 842. The second upper bracket 841 has a second sliding channel 8410. A second insertion plate 843 and a second elastic member 846 are disposed in the second sliding channel 8410. The second elastic member 846 is configured to push the lower end portion 8431 of the second insertion plate 843 to insert it into the third slot 8420. When the lower end portion 8431 of the second insertion plate 843 is inserted into the third slot 8420, relative rotation between the second upper bracket 841 and the second lower bracket 842 is restricted, and the second foldable mechanism 84 is maintained in the unfolded state. A handle 845 is provided on the second insertion plate 843. A user can retract the lower end portion 8431 of the second insertion plate 843 from the third slot 8420 by operating the handle 845. Then, the second upper bracket 841 and the second lower bracket 842 become rotatable relative to each other, and the second folding mechanism 84 can be folded.

[0063] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, unless a contradiction arises in the combination of these technical features, all combinations should be considered to be within the scope of this specification.

[0064] The above embodiments merely represent some embodiments of the present disclosure, and although the description is relatively specific and detailed, it should not be construed as limiting the scope of the patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present disclosure, and all of these modifications and improvements fall within the scope of protection of the present disclosure. Therefore, the scope of protection of the present disclosure shall be subject to the scope of the accompanying claims.

Claims

1. The main body and a locking member attached to the body, the locking member having a locked position and an unlocked position; a drive member attached to the body and coupled to the locking member, the drive member configured to drive the locking member to move from the locked position to the unlocked position; and a holding member attached to the main body; Equipped with When the locking member is moved to the unlocked position, the retaining member is configured to lock the drive member to retain the locking member in the unlocked position.

2. 2. The connecting base of claim 1, wherein the retaining member is movably disposed on the main body and has an extended position and a retracted position, wherein when the retaining member is in the retracted position and the locking member moves from the locked position to the unlocked position, the retaining member engages and locks the drive member, and when the retaining member moves toward the extended position, the retaining member disengages from the drive member.

3. The linkage base of claim 2 , further comprising a first reset member configured to urge the retaining member toward the extended position.

4. The connecting base according to claim 2 or 3, wherein the locking member is movable relative to the main body between the locked position and the unlocked position, and the direction of movement of the locking member is parallel to the direction of movement of the holding member.

5. The coupling base of claim 2 , further comprising a second reset member configured to drive the locking member to move towards the locked position.

6. The coupling base of claim 2 , further comprising a third reset member configured to drive the drive member to reset when the retaining member disengages from the drive member.

7. 7. The coupling base of claim 2, wherein the main body has a receiving cavity in which the drive member is attached, the cavity wall of the receiving cavity is provided with a first hole and a second hole, the retaining member is movably arranged in the first hole, the locking member is movably arranged in the second hole, the movement direction of the locking member is parallel to the movement direction of the retaining member, and the movement direction of the locking member is perpendicular to the movement direction of the drive member.

8. 8. The coupling base of claim 7, wherein a driven pin is attached to the locking member, an axial direction of the driven pin, the movement direction of the locking member, and the movement direction of the drive member are perpendicular to one another, and the drive member includes at least one drive ramp that abuts the driven pin to drive the locking member to move from the locked position to the unlocked position.

9. 9. The connecting base of claim 8, wherein the drive member has a frame-like structure, the retaining member and the locking member are located on the frame-like structure, the frame-like structure has two opposing side plates, each side plate is provided with a drive hole, and the drive slope is formed on a hole wall of each drive hole.

10. The coupling base of claim 7 , wherein the drive member comprises a support extending from the receiving cavity.

11. A connecting base according to any one of claims 7 to 10, wherein the retaining member is provided with a stopper located in the receiving cavity.

12. a moving direction of the holding member is perpendicular to a moving direction of the drive member, the holding member includes at least one first engagement portion, and the drive member includes at least one second engagement portion; 12. The connecting base of claim 2, wherein when the retaining member is in the retracted position and the locking member is in the locked position, each of the at least one first engagement portion moves on a movement path of the corresponding second engagement portion.

13. 13. The connecting base of claim 12, wherein when the retaining member is in the retracted position and the drive member is driven to move the locking member toward the unlocked position, each of the at least one second engagement portion moves past the corresponding first engagement portion and then engages with the first engagement portion.

14. The linkage base of claim 13 , wherein when the retaining member moves from the retracted position to the extended position, each of the at least one first engagement portion moves out of the path of movement of the corresponding second engagement portion.

15. 15. The connecting base of claim 12, wherein the drive member comprises two opposing side plates, the at least one second engagement portion is disposed on each side plate, the retaining member is positioned between the two side plates, the retaining member has at least two first engagement portions, one of the at least two first engagement portions engages with the second engagement portion on one of the two side plates, and the other of the at least two first engagement portions engages with the second engagement portion on the other of the two side plates.

16. The connecting base according to claim 12 , wherein the retaining member includes at least one first resilient arm, and the at least one first engagement portion is disposed on the at least one first resilient arm.

17. 17. The connection base of claim 12, wherein the drive member includes at least one second resilient arm, and the at least one second engagement portion is disposed on the at least one second resilient arm.

18. A transport device comprising a connecting base according to any one of claims 1 to 17.

19. A traction member; an unlock button coupled to the driving member via the pulling member; 20. The transport device of claim 18, further comprising:

20. The upper frame and The lower frame and A folding mechanism connected between the upper frame and the lower frame; Furthermore, 20. The transport device of claim 18 or 19, wherein the folding mechanism is deployable so that the upper frame and the lower frame can be moved away from each other, and the folding mechanism is foldable so that the upper frame and the lower frame can be moved closer to each other.

21. The folding mechanism is a first upper bracket, an upper end of the first upper bracket being connected to the upper frame and a lower end of the first upper bracket having two first lugs; a first lower bracket, an upper end of which includes a second lug located between the two first lugs, and a lower end of which is pivotally coupled to the lower frame; and a first pivot shaft extending through the first lug and the second lug to enable the first upper bracket to be pivotally coupled to the first lower bracket; 21. The transport device of claim 20, comprising:

22. a main frame having a mounting base; A conveying device according to any one of claims 18 to 21; Equipped with The child carrier has an attachment base that is detachably connected to the connection base, and the attachment base has a lock hole that corresponds to the lock member.

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