Engagement device and infant seat assembly

Abstract

To provide an engaging device and an infant seat assembly having the engaging device.SOLUTION: An engaging device 1 is configured to fix an infant basket 9 having a horizontal rod to a high chair 2 having a carrier base. The engaging device comprises an engaging base and a first engaging mechanism. The engaging base is used to be connected to the carrier base. The first engaging mechanism is movably disposed on the engaging base. The first engaging mechanism is configured to releasably engage the horizontal rod with the engaging base. An infant seat assembly comprises a high chair and the engaging device. An infant carrier can be detachably attached to the carrier base of the high chair by the engaging device. The engaging device is removably connected to each of the infant basket and the high chair, so that the infant basket can be conveniently and quickly fixed to the high chair.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to the technical field of infant carriers, and particularly to an engaging device and an infant seat assembly having the engaging device.

Background Art

[0002] Children's high chairs are generally used when infants eat with adults near the dining table. Commercially available high chairs can realize switching between different usage modes by connecting different seats thereto, thereby meeting the usage needs of infants of different age groups and extending the usage period of the high chair. However, currently commercially available high chairs can hardly engage with infant baskets, and it is difficult to conveniently and quickly fix the infant basket to the high chair.

Summary of the Invention

Problems to be Solved by the Invention

[0003] In view of this, the present application provides an engaging device that can be removably connected to an infant basket and a high chair respectively, and can realize conveniently and quickly fixing the infant basket to the high chair.

Means for Solving the Problems

[0004] One aspect of the present application provides an engaging device configured to fix an infant basket provided with a horizontal rod to a high chair provided with a mounting base. The engaging device includes an engaging base and a first engaging mechanism. The engaging base is used for being connected to the mounting base. The first engaging mechanism is movably provided on the engaging base. The first engaging mechanism is configured to releasably engage the horizontal rod to the engaging base.

[0005] In one embodiment, the first engaging mechanism includes a unlocking member, the unlocking member is movably connected to the engaging base and can be switched between a locked state and an unlocked state, the unlocking member has an engaging portion, when the unlocking member is in the locked state, the engaging portion engages with the horizontal rod, and when the unlocking member is in the unlocked state, the horizontal rod releases the engagement with the engaging portion.

[0006] In one embodiment, a receiving cavity is formed inside the engaging base, at least a part of the unlocking member is located in the receiving cavity, the part of the unlocking member located in the receiving cavity has a connecting portion, the connecting portion is pivotally connected to the cavity wall of the receiving cavity, and the engaging portion extends out of the receiving cavity and can engage with the horizontal rod.

[0007] In one embodiment, the engaging portion has a first engaging surface, the engaging base has a second engaging surface, when the unlocking member is in the locked state, the first engaging surface and the second engaging surface face each other, and the horizontal rod is engaged between the first engaging surface and the second engaging surface.

[0008] In one embodiment, the unlocking member is movably connected to the engaging base, the engaging portion has a wedge surface, and the wedge surface is configured to be pressed against the horizontal rod to move the unlocking member.

[0009] In one embodiment, the engaging portion has a first engaging surface, when the unlocking member is in the locked state, the horizontal rod is engaged between the first engaging surface and the engaging base, and the wedge surface and the first engaging surface are interconnected and provided at an angle.

[0010] In one embodiment, the unlocking member has a first position and a second position. When the unlocking member is in the first position and in a locked state, the unlocking member is movable from the locked state through the second position to an unlocked state. When the unlocking member is in the first position and in an unlocked state, the unlocking member is movable from the unlocked state through the second position to a locked state.

[0011] In one embodiment, the engaging portion has a wedge-shaped surface, and the wedge-shaped surface is configured to be pressed against the horizontal rod to move the unlocking member from the first position to the second position.

[0012] In one embodiment, the first engaging mechanism further includes a first elastic member, and the first elastic member is provided between the unlocking member and the engaging base. The first elastic member is configured to bias the unlocking member to move the unlocking member to the first position.

[0013] In one embodiment, the first engaging mechanism further includes an indicating member, and the indicating member is movably provided on the engaging base and is switchable between at least two indicating states so as to indicate the engaged state or the disengaged state between the unlocking member and the horizontal rod.

[0014] In one embodiment, the indicating member is provided with indicating marks for respectively indicating at least two indicating states. A storage cavity is formed inside the engaging base, the indicating member is provided in the storage cavity, and the engaging base is provided with an indicating window for displaying any of the indicating marks.

[0015] In one embodiment, the at least two indicating states include a first indicating state for indicating that the horizontal rod disengages from the first engaging mechanism and a second indicating state for indicating that the horizontal rod engages with the first engaging mechanism.

[0016] In one embodiment, the first engagement mechanism further includes a second elastic member, and the second elastic member is configured to urge the indicating member to move to the first indicating state.

[0017] In one embodiment, the first engagement mechanism further includes a pusher member, the pusher member is movably provided on the engagement base, and is used to drive the switching between at least two indicating states of the indicating member.

[0018] In one embodiment, the pusher member is switchable between an extended position and a retracted position. When the pusher member switches from the extended position to the retracted position, the pusher member presses against the indicating member so as to switch from a first indicating state for indicating that the lateral rod disengages from the first engagement mechanism to a second indicating state for indicating that the lateral rod engages with the first engagement mechanism.

[0019] In one embodiment, the indicating member has a first driving slope, and a second driving slope is provided at one end of the pusher member. The second driving slope is configured to abut against the first driving slope and drive the indicating member to switch between the at least two indicating states.

[0020] In one embodiment, the pusher member is switchable between an extended position and a retracted position. When the pusher member is in the retracted position, the lateral rod can be engaged between the first engaging surface and the pusher member. When the pusher member is in the extended position, the lateral rod releases the engagement with the first engaging surface.

[0021] In one embodiment, one end of the pusher member is a contact end and can contact the lateral rod, so that the lateral rod can be driven to switch from the extended position to the retracted position.

[0022] In one embodiment, the engaging device further includes a second engaging mechanism, and the second engaging mechanism includes an engaging member, an elastic arm, and a first engaging protrusion. The engaging member is connected to the placing base, and a first engaging hole is provided in the engaging member. The elastic arm is connected to the engaging base. The first engaging protrusion is provided on the elastic arm and can be engaged with the first engaging hole.

[0023] In one embodiment, the engaging member and the placing base form a mounting groove in which at least a part of the engaging base is mounted. When at least a part of the engaging base is inserted into the mounting groove, the elastic arm enters the mounting groove, and the first engaging protrusion is engaged with the first engaging hole.

[0024] In one embodiment, the engaging base has an opening groove. One end of the elastic arm is connected to the groove wall of the opening groove. The first engaging protrusion has an engaging position protruding from the opening groove and a retracted position not protruding from the opening groove. When the first engaging protrusion is in the engaging position, the first engaging protrusion can be engaged with the first engaging hole. In the process of inserting the engaging base into the mounting groove, the engaging member can press the first engaging protrusion to move it to the retracted position, and the elastic arm is configured to urge the first engaging protrusion to move the first engaging protrusion to the engaging position.

[0025] In one embodiment, an engaging groove is provided in the engaging base. When the first engaging protrusion is engaged with the first engaging hole, at least a part of the placing base is inserted into the engaging groove.

[0026] In one embodiment, an engaging groove is provided in the engaging base. The engaging groove has a first side wall, and the opening groove is provided on the first side wall. The engaging member and the placing base form a mounting groove into which the engaging base is inserted. When at least a part of the engaging base is inserted into the mounting groove, at least a part of the placing base is inserted into the engaging groove, and the first engaging protrusion is engaged with the first engaging hole.

[0027] Another aspect of the present application provides an infant seat assembly including a high chair and the engagement device described in the above embodiments. By the engagement device, an infant carrier can be detachably attached to the mounting base of the high chair.

[0028] In one embodiment, the infant seat assembly further includes a third engagement mechanism, the high chair further includes a backrest, and the third engagement mechanism can detachably connect the infant basket to the backrest.

[0029] In one embodiment, the third engagement mechanism includes an engagement groove and a lock hook member. The engagement groove is provided on the backrest, a first convex portion is provided on a side wall of the engagement groove, and the first convex portion and the bottom wall of the engagement groove form a lock hook groove with a gap therebetween. The lock hook member is provided on the infant basket, the lock hook member has a hook body, and the hook body is configured to be engaged in the lock hook groove to fix the lock hook member in the engagement groove.

[0030] In one embodiment, the third engagement mechanism further includes a decorative cover movably provided in the engagement groove. When the hook body is not engaged in the lock hook groove, the decorative cover can close the groove opening of the engagement groove.

[0031] In one embodiment, the decorative cover has a first end away from the bottom wall of the engagement groove and a second end facing the bottom wall of the engagement groove. A second convex portion is provided at the second end, the second convex portion is located between the bottom wall of the engagement groove and the first convex portion, the decorative cover can be switched between a third position and a fourth position. When the decorative cover is in the third position, the first end is flush with the surface of the backrest, the second convex portion abuts against the first convex portion. When the decorative cover is in the fourth position, the second convex portion and the first convex portion are spaced apart and the hook body can be engaged in the lock hook groove.

[0032] In one embodiment, the third engagement mechanism further includes a third elastic member, the third elastic member is provided between the bottom wall of the engagement groove and the decorative cover, and the third elastic member is configured to urge the decorative cover to move to the third position.

[0033] In one embodiment, the high chair has a first member and a second member that can move oppositely, and an adjustment mechanism connected to the first member and the second member respectively. The adjustment mechanism can be switched between a locked state and an unlocked state. When the adjustment mechanism is in the unlocked state, the first member can move along a predetermined direction with respect to the second member. When the adjustment mechanism is in the locked state, the first member is fixed with respect to the second member.

[0034] In one embodiment, the adjustment mechanism includes a plurality of lock holes and a lock member. The plurality of lock holes are provided in one of the first member and the second member and are arranged in the predetermined direction. The lock member is movably connected to the other of the first member and the second member. The lock member includes a locking portion and can be switched between a locked position and an unlocked position. When the lock member is in the locked position, the locking portion is inserted and fitted into one of the lock holes. When the lock member is in the unlocked position, the locking portion releases the fitting with any of the plurality of lock holes.

[0035] In one embodiment, the lock member further includes a lock body. The lock body is pivotally connected to the other of the first member and the second member by a pivot shaft. The locking portion is provided at one end of the lock body. The lock body is operable to switch the locking portion between the locked position and the unlocked position.

[0036] In one embodiment, the adjustment mechanism further includes a drive member. The drive member includes a drive portion and an operation portion. The drive portion abuts against the lock body, and the operation portion is operable to press and pivot the lock body by the drive portion.

[0037] In one embodiment, the adjustment mechanism further includes a driving member, the driving member includes a driving part and an operating part, the driving part has a first pressing slope, and the locking body is provided with a second pressing slope facing the first pressing slope, and the operating part is operable such that the second pressing slope presses against the first pressing slope to pivot the locking member.

[0038] In one embodiment, the adjustment mechanism further includes a fourth return member, and the fourth return member is configured to urge the locking member to pivot the locking member to the locking position.

[0039] In one embodiment, the infant seat assembly further includes a connection base, the connection base is fixed to the other one of the first member and the second member, the connection base has a storage groove, the locking member is movably provided in the storage groove, and the locking part extends out from the groove opening of the storage groove and can be inserted and fitted into any one of the locking holes.

[0040] In one embodiment, the adjustment mechanism further includes a driving member, the driving member includes a driving part and an operating part, the driving part abuts against the locking member, a strip-shaped hole is provided in the bottom wall of the storage groove, the operating part extends out from the connection base through the strip-shaped hole so as to be operated, and the operating part is operable to drive the driving part to switch between the locking position and the unlocking position of the locking member.

[0041] In one embodiment, the adjustment mechanism further includes an operating member, the operating member is fixed to one end of the operating part away from the driving part, and the operating member is configured to be operable.

[0042] In one embodiment, a strip-shaped groove is provided in one of the first member and the second member, the plurality of locking holes are provided in the bottom wall of the strip-shaped groove, at least a part of the connection base is housed in the strip-shaped groove, and is movable in the strip-shaped groove.

[0043] In one embodiment, the high chair includes a backrest and two side plates, the two side plates are respectively connected to both ends of the backrest, the placement base is located between the two side plates and is movable relative to the two side plates, the first member includes the placement base, and the second member includes the side plates.

[0044] In one embodiment, the high chair includes a seat body, a plurality of support legs for supporting the seat body, and a pedal located between two of the support legs, the pedal is movable relative to the two support legs, the first member includes the support legs, and the second member includes the pedal.

[0045] In one embodiment, the infant seat assembly further includes a dining tray and a stopper member, one end of the stopper member is connected to the dining tray, and the other end is removably connected to the placement base.

[0046] In one embodiment, an elastic finger is provided at the other end of the stopper member, the elastic finger has a second engaging protrusion, the placement base has a second engaging hole provided therethrough, and the second engaging protrusion can abut against the end surface of the placement base facing away from the dining tray through the second engaging hole.

Advantages of the Invention

[0047] According to the above engagement device and the infant seat assembly, by connecting the engagement device to the horizontal rod of the infant basket and the placement base of the high chair respectively, the infant basket can be conveniently and stably fixed to the high chair, which is not only convenient for the caregiver to take care of the infant when eating, but also convenient for the infant and the caregiver to have meals together.

Brief Description of the Drawings

[0048]

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Mode for Carrying Out the Invention

[0049] To more clearly understand the above objects, features, and advantages of the present invention, the following will describe in detail the specific embodiments of the present invention with reference to the drawings. In the following description, many specific details are described in order to fully understand the present invention. However, the present invention can be implemented in many other forms different from the embodiments described here, and those skilled in the art can make similar improvements without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific examples disclosed below.

[0050] In the description of the present invention, it should be understood that terms such as "center", "vertical direction", "horizontal direction", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial direction", "radial direction", "circumferential direction", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present invention and simplifying the description, and do not mean or imply that the device or element mentioned must have a specific orientation and must be configured and operated in a specific orientation, and should not be construed as limiting the present invention.

[0051] Note that the terms "first" and "second" are only for the purpose of description, and do not mean or imply relative importance or imply the number of the described technical features. Therefore, the features defined by "first" and "second" may include at least one of the features explicitly or implicitly. In the description of the present invention, unless specifically and explicitly limited, the meaning of "a plurality" is at least two, for example, two, three, etc.

[0052] In the present invention, unless specifically defined and limited, terms such as "attachment", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral one. Also, it may be mechanically connected or electrically connected. Also, it may be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

[0053] In the present invention, unless otherwise specifically defined and limited, when a first feature is "above" or "below" a second feature, the first and second features may be in direct contact or may be in indirect contact via an intermediate medium. Further, when a first feature is "above", "upward" or "upper surface" of a second feature, it may merely indicate that the first feature is directly above or obliquely above the second feature, or that the horizontal height of the first feature is greater than that of the second feature. When a first feature is "below", "downward" or "lower surface" of a second feature, it may merely indicate that the first feature is directly below or obliquely below the second feature, or that the horizontal height of the first feature is smaller than that of the second feature.

[0054] In addition, when one element is referred to as being "fixed to" or "provided on" another element, it may be directly present on the other element or there may be intervening elements. When one element is considered to be "connected to" another element, it may be directly connected to the other element or there may be intervening elements. The terms "vertical", "horizontal", "above", "below", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only embodiments.

[0055] Embodiments of the present invention provide an engagement device 1 and an infant seat assembly having the engagement device 1. As shown in FIGS. 1 to 3, the infant seat assembly includes a high chair 2 and an engagement device 1. The infant seat assembly has a plurality of use modes to adapt to the use requirements of infants of different age groups. The engagement device 1 is used to fix the infant basket 9 to the high chair 2. The infant seat assembly includes a first use mode (see FIG. 1) in which the infant basket 9 can be detachably attached to the high chair 2, a second use mode (see FIG. 2) in which it is used as a dining chair, and a third use mode (see FIG. 3) in which it is used as a seat. Here, in the third use mode, the high chair 2 is used alone as a seat. Referring to FIG. 1, when the infant seat assembly is in the first use mode, the engagement device 1 can detachably attach the infant basket 9 to the high chair 2.

[0056] As shown in FIG. 4, the high chair 2 includes a seat body 21 and a plurality of support legs 22 for supporting the seat body 21. The seat body 21 includes a placement base 211, a backrest 212, and two side plates 213. The two side plates 213 are respectively connected to both ends of the backrest 212 and are connected to the placement base 211. In this embodiment, the number of support legs 22 is four. Specifically, the plurality of support legs 22 includes two front support legs 221 and two rear support legs 222. A front link 223 is provided between the two front support legs 221, and both ends of the front link 223 are respectively connected to the two front support legs 221, thereby increasing the support stability of the two front support legs 221. Similarly, a rear link 224 is provided between the two rear support legs 222, and both ends of the rear link 224 are respectively connected to the two rear support legs 222, thereby increasing the support stability of the two rear support legs 222.

[0057] In some embodiments, as shown in FIG. 5, the engaging device 1 includes a first engaging mechanism 12 and an engaging base 11 for connecting to the placement base 211. The baby basket 9 for infants has a horizontal rod 91 (see FIG. 4). The first engaging mechanism 12 is movably provided on the engaging base 11, and the first engaging mechanism 12 is used to releasably engage the horizontal rod 91 to the engaging base 11. By connecting the engaging device 1 to the placement base 211 of the high chair 2, the baby basket 9 for infants can be conveniently and stably fixed to the high chair 2, which is not only convenient for the caregiver to take care of the infant when eating, but also convenient for the infant and the caregiver to eat together.

[0058] As shown in FIGS. 5, 6, and 11, the engagement base 11 can be detachably connected to the placement base 211. The side cross-section of the engagement base 11 generally presents an L shape. An engagement groove 111 is provided at one end of the engagement base 11, and a part of the placement base 211 can be engaged in the engagement groove 111, so that the engagement base 11 can be conveniently fixed to the placement base 211. Also, the placement base 211 presents a plate shape so as to be conveniently engaged in the engagement groove 111. In other embodiments not shown, the placement base 211 may be provided with the engagement groove 111, and one end of the engagement base 11 may be engageable in the engagement groove 111. In other embodiments not shown, one end of the engagement base 11 may be detachably connected to the placement base 211 by bolts. Referring to FIG. 8, a storage cavity 112 is formed inside the engagement base 11, and the first engagement mechanism 12 can be partially stored in the storage cavity 112.

[0059] Specifically, as shown in FIGS. 7 to 9, the first engagement mechanism 12 includes a lock release member 121, a first elastic member 122, an indicating member 123, a pusher member 124, and a second elastic member 125. The lock release member 121 is pivotally connected to the engagement base 11, and the first elastic member 122 is provided between the lock release member 121 and the engagement base 11. Further, the lock release member 121 can be switched between a locked state and a lock release state. The lock release member 121 has an engaging portion 1211 and a connecting portion 1212. At least a part of the lock release member 121 is located within the storage cavity 112. The portion of the lock release member 121 located within the storage cavity 112 forms the connecting portion 1212, and the connecting portion 1212 is pivotally connected to the cavity wall of the storage cavity 112. As shown in FIG. 10, when the lock release member 121 is in the locked state, the engaging portion 1211 is engaged with the horizontal rod 91. As shown in FIG. 8, when the lock release member 121 is in the lock release state, the horizontal rod 91 is disengaged from the engaging portion 1211. In this embodiment, the lock release member 121 has a first position and a second position. When the lock release member 121 is in the first position and in the locked state, the lock release member 121 can move from the locked state through the second position to the lock release state, and when the lock release member 121 is in the first position and in the lock release state, the lock release member 121 can move from the lock release state through the second position to the locked state, that is, as shown in FIG. 9, the second position of the lock release member 121 is a transition position passed by the lock release member 121 in the switching process between the locked state and the lock release state.

[0060] Specifically, the engaging portion 1211 has a first engaging surface 1213, and the engaging base 11 has a second engaging surface 113. When the unlocking member 121 is in the first position, the first engaging surface 1213 and the second engaging surface 113 face each other and surround to form the engaging groove 13. The horizontal rod 91 can be engaged between the first engaging surface 1213 and the second engaging surface 113, that is, the horizontal rod 91 can be engaged within the engaging groove 13. In some other unshown embodiments, the engaging portion 1211 may be provided with a hook portion, and when the unlocking member 121 is in the first position, the hook portion is engaged and connected to the horizontal rod 91. In this embodiment, further, the engaging portion 1211 has a wedge surface 1214, and the wedge surface 1214 is configured to be pressed against the horizontal rod 91 to pivot the unlocking member 121. The wedge surface 1214 and the first engaging surface 1213 are interconnected and provided at an angle. Thereby, it is not necessary to manually operate the unlocking member 121, and in the process of the horizontal rod 91 approaching the engaging base 11, the wedge surface 1214 can press against and pivot the unlocking member 121 (see FIG. 9), whereby the horizontal rod 91 is engaged with the engaging portion 1211.

[0061] As shown in FIGS. 8 to 10, the first elastic member 122 is configured to urge the unlocking member 121 to pivot the unlocking member 121 to the first position (i.e., the initial position). In the process of the horizontal rod 91 approaching the engaging base 11, the horizontal rod 91 presses against the wedge surface 1214 to pivot the unlocking member 121 to the second position. When the horizontal rod 91 continues to move to the engaging groove 13, the horizontal rod 91 no longer presses against the wedge surface 1214, and the unlocking member 121 pivots from the second position to the first position under the action of the elastic force of the first elastic member 122. In this embodiment, the first elastic member 122 includes a spring. The first elastic member 122 is housed within the storage cavity 112. A plurality of first protrusions 114 are provided on the cavity wall of the storage cavity 112, and the plurality of first protrusions 114 surround to form the accommodation groove 116. One end of the first elastic member 122 abuts against the unlocking member 121, and the other end is inserted into the accommodation groove 116, thereby avoiding displacement during the deformation process of the first elastic member 122.

[0062] As shown in FIGS. 6 to 8, the indicating member 123 is movably provided on the engagement base 11 and can be switched between at least two indicating states, thereby indicating a state of the unlocking member 121. The at least two indicating states include a first indicating state for the lateral rod 91 to indicate disengagement from the first engagement mechanism 12 and a second indicating state for the lateral rod 91 to indicate engagement with the first engagement mechanism 12. As shown in FIG. 11, the indicating member 123 is provided with indicating marks 1232 for indicating the at least two indicating states respectively. The indicating marks 1232 include a red mark for indicating the first indicating state and a green mark for indicating the second indicating state. Of course, in some other embodiments, it is possible to indicate at least two states with at least two other different indicating marks, as long as different indicating states can be distinguished. In this embodiment, the indicating member 123 is provided in the storage cavity 112, and the engagement base 11 is provided with an indicating window 117 for displaying any one of the indicating marks 1232. Specifically, when the lateral rod 91 (see FIG. 4) releases the engagement with the engaging portion 1211 (that is, when the lateral rod 91 is not engaged with the engaging portion 1211), the indicating member 123 is in the first indicating state. At this time, the red mark of the indicating member 123 is located at the indicating window 117. When the lateral rod 91 is engaged with the engaging portion 1211, the indicating member 123 switches from the first indicating state to the second indicating state. At this time, the green mark of the indicating member 123 moves to the indicating window 117. Thereby, it is convenient for the caregiver to determine whether the baby basket 9 is engaged with the first engagement mechanism 12 based on the indicating mark 1232 displayed in the indicating window 117.

[0063] As shown in FIG. 7, the pusher member 124 is movably provided on the engagement base 11 and is located between the unlocking member 121 and the indicating member 123. As shown in FIGS. 8 to 10, the pusher member 124 is switchable between an extended position and a retracted position. When the pusher member 124 switches from the extended position to the retracted position, the pusher member 124 presses against the indicating member 123 to switch it from the first indicating state to the second indicating state. One end of the pusher member 124 is a contact end 1241 that can contact the horizontal rod 91. When the pusher member 124 is in the retracted position, as shown in FIG. 9, the contact end 1241 is substantially flush with the second engagement surface 113, and the horizontal rod 91 is engaged between the first engagement surface 1213 and the contact end 1241. When the pusher member 124 is in the extended position, as shown in FIG. 8, the horizontal rod 91 disengages from the engagement with the first engagement surface 1213. The second elastic member 125 is configured to urge the indicating member 123 to move to the first indicating state. The indicating member 123 has a first driving slope 1231, and a second driving slope 1242 is provided at the other end of the pusher member 124. The second driving slope 1242 contacts the first driving slope 1231 to move the indicating member 123, whereby the indicating member 123 switches between at least two indicating states (in this embodiment, the first indicating state and the second indicating state). When the unlocking member 121 is in the unlocked state at the first position, the contact end 1241 of the pusher member 124 is located between the first engagement surface 1213 and the second engagement surface 113. In this embodiment, when the unlocking member 121 is in the unlocked state at the first position, the pusher member 124 is provided substantially perpendicular to the first engagement surface 1213. Of course, in other embodiments, the pusher member 124 may be provided offset from the first engagement surface 1213.

[0064] As shown in FIGS. 9 and 10, when the horizontal rod 91 moves until it engages with the engaging portion 1211, the horizontal rod 91 presses against the abutting end 1241 of the pusher member 124 to move the pusher member 124, and by aligning the second driving slope 1242 and the first driving slope 1231, the movement of the indicating member 123 is driven, whereby the indicating member 123 switches from the first indicating state to the second indicating state. As shown in FIGS. 8 and 9, when the engagement between the horizontal rod 91 and the engaging portion 1211 is released, the horizontal rod 91 no longer presses against the pusher member 124, the pusher member 124 no longer generates a driving force on the indicating member 123, and the indicating member 123 moves from the second indicating state to the first indicating state under the action of the elastic force of the second elastic member 125, and by aligning the first driving slope 1231 and the second driving slope 1242, the movement of the indicating member 123 is driven.

[0065] Furthermore, as shown in FIGS. 8 and 12, the second elastic member 125 is a spring. The second elastic member 125 is housed in the storage cavity 112 and is provided between the indicating member 123 and the inner wall of the engagement base 11. Also, there are two connecting portions 1212 of the unlocking member 121, and the two connecting portions 1212 are opposed to each other and provided at an interval. A part of the indicating member 123 and the second elastic member 125 are located between the two connecting portions 1212, and the indicating member 123 is movable between the two connecting portions 1212. One end of the second elastic member 125 abuts against the indicating member 123, and the other end abuts against the inner wall of the engagement base 11 to urge the indicating member 123 to move to the other of the two connecting portions 1212.

[0066] As shown in FIG. 11, the engagement device 1 further includes a second engagement mechanism 14, and the second engagement mechanism 14 includes an engagement member 141 and an elastic arm 142. The engagement member 141 is connected to the placement base 211 and, together with the placement base 211, forms a mounting groove 15 into which at least a part of the engagement base 11 is inserted. The engagement member 141 is provided with a first engagement hole 1411. One surface of the placement base 211 for placing an infant is defined as the first side surface 2111, and one surface of the placement base 211 opposite to the first side surface 2111 is defined as the second side surface 2112. The engagement member 141 is provided on the second side surface 2112 of the placement base 211. In this way, when the high chair 2 is used alone, the engagement member 141 can be removed from the placement base 211, avoiding the engagement member 141 from interfering with the use of the high chair 2 by an infant. The elastic arm 142 is connected to the engagement base 11, and the elastic arm 142 is provided with a first engagement protrusion 1421 that can be engaged with the first engagement hole 1411. Specifically, the engagement base 11 has an opening groove 118. One end of the elastic arm 142 is connected to the groove wall of the opening groove 118, and the other end of the elastic arm 142 is provided with the first engagement protrusion 1421. The first engagement protrusion 1421 has an engagement position protruding from the opening groove 118 and a retracted position not protruding from the opening groove 118. When the first engagement protrusion 1421 is located at the engagement position, the first engagement protrusion 1421 can be engaged with the first engagement hole 1411. In the process of inserting the engagement base 11 into the mounting groove 15, the engagement member 141 can push against the first engagement protrusion 1421 and move it to the retracted position. At this time, the elastic arm 142 is elastically deformed. Since the elastic arm 142 is configured to urge the first engagement protrusion 1421 and move the first engagement protrusion 1421 to the engagement position, after the engagement base 11 is inserted into the mounting groove 15 and reaches a predetermined position, the first engagement protrusion 1421 can be engaged with the first engagement hole 1411 due to the elastic deformation action of the elastic arm 142. In this embodiment, the engagement groove 111 includes a first side wall 1112 and a second side wall 1111. The second side wall 1111 is configured to abut against the first side surface 2111, and the first side wall 1112 is configured to abut against the second side surface 2112. The elastic arm 142 is provided on the first side wall 1112.When at least a part of the placement base 211 is engaged in the engagement groove 111, at least a part of the second side wall 1112 is inserted into the mounting groove 15, the elastic arm 142 enters the mounting groove 15, and the first engagement protrusion 1421 is engaged with the first engagement hole 1411. By providing the second engagement mechanism 14, the engagement base 11 can be stably connected to the placement base 211, and it is possible to easily fix the engagement base 11 to the placement base 211.

[0067] In this embodiment, the specific process of fixedly connecting the engagement device 1 to the baby basket 9 and the high chair 2 respectively is as follows.

[0068] First, as shown in FIG. 11, after fixing the engagement member 141 to the placement base 211, the placement base 211 is engaged with the engagement groove 111. At this time, while the second side wall 1112 is inserted into the mounting groove 15, the first engagement protrusion 1421 is engaged with the first engagement hole 1411, and the engagement device 1 is fixedly connected to the high chair 2.

[0069] Next, as shown in FIG. 9, when the baby basket 9 is moved to the placement base 211 and the baby basket 9 approaches the first engagement mechanism 12, the horizontal rod 91 presses against the wedge surface 1214 of the unlocking member 121 to pivot the unlocking member 121 to the second position. When continuously moving to the placement base 211, the horizontal rod 91 maintains contact with the unlocking member 121. At the same time as the unlocking member 121 is kept in the second position, the horizontal rod 91 presses against and moves the pusher member 124, and the combination of the second driving slope 1242 and the first driving slope 1231 drives the movement of the indicating member 123 from the first indicating state to the second indicating state. When the horizontal rod 91 moves along the wedge surface 1214 into the engaging groove 15, the horizontal rod 91 causes the indicating member 123 to move to the second indicating state by the pusher member 124, and the horizontal rod 91 no longer abuts against the wedge surface 1214. As shown in FIG. 10, the unlocking member 121 pivots from the second position to the locked state at the first position under the action of the elastic force of the first elastic member 122, and the first engaging surface 1213 engages with the horizontal rod 91. At this time, the unlocking member 121 is in the locked state, whereby the horizontal rod 91 is engaged between the engaging portion 1211 and the pusher member 124.

[0070] The process of disconnecting the engagement device 1 from the baby basket 9 and the high chair 2 respectively is specifically as follows.

[0071] First, as shown in FIG. 10, an external force is applied to the unlocking member 121 to pivot it from the first position to the second position, releasing the engagement between the horizontal rod 91 and the unlocking member 121. As a result, as shown in FIG. 9, the baby basket 9 is disconnected from the engaging device 1. When the horizontal rod 91 disengages from the engaging device 1 and the external force applied to the unlocking member 121 is removed, the unlocking member 121 returns to the unlocked state from the second position to the first position under the action of the elastic force of the first elastic member 122 (at this time, the unlocking member 121 is in the unlocked state). At the same time, under the elastic acting force of the second elastic member 125, the indicating member 123 moves from the second indicating state to the first indicating state, and by the combination of the first driving slope 1231 and the second driving slope 1242, the pusher member 124 moves in the direction approaching the first engaging surface 1213 until the contact end 1241 contacts the first engaging surface 1213, that is, the pusher member 124 moves to the extended position. In other embodiments, when the pusher member 124 is in the extended position, the contact end 1241 may not contact the first engaging surface 1213, that is, the contact end 1241 and the first engaging surface 1213 may be provided with a gap.

[0072] Next, as shown in FIG. 11, it is possible to press the first engaging protrusion 1421 through the first engaging hole 1411 to withdraw the first engaging protrusion 1421 from the first engaging hole 1411. At this time, when an external force is applied to the engaging base 11, the engaging groove 111 disengages from the engagement with the mounting base 211, thereby releasing the connection between the engaging base 11 and the mounting base 211.

[0073] In some embodiments, as shown in FIGS. 13 to 15, the infant seat assembly may further include a third engagement mechanism 3, and the third engagement mechanism 3 enables the infant basket 9 to be detachably connected to the backrest 212. In this embodiment, the third engagement mechanism 3 includes an engagement groove 32, a lock hook member 31, a decorative cover 33, and a third elastic member 34. The engagement groove 32 is provided on the backrest 212. A first protrusion 321 is provided on the side wall of the engagement groove 32, and the first protrusion 321 and the bottom wall 322 of the engagement groove 32 form a lock hook groove 325 with a gap therebetween. The lock hook member 31 is provided on the infant basket 9. The lock hook member 31 has a hook body 311, and the hook body 311 is configured to be engaged in the lock hook groove 325 to fix the lock hook member 31 in the engagement groove 32. Specifically, the lock hook member 31 and the horizontal rod 91 are respectively provided on both the front and rear sides of the infant basket 9. For example, the horizontal rod 91 is provided on the front side of the infant basket 9, and the lock hook member 31 is provided on the rear side of the infant basket 9.

[0074] Furthermore, as shown in FIG. 14, the backrest 212 includes a first back plate 2121 and a second back plate 2122 that are interconnected. The engagement groove 32 includes a first hole 32a provided in the first back plate 2121 and a second hole 32b provided in the second back plate 2122, and the bottom wall of the second hole 32b forms the bottom wall 322 of the engagement groove 32. The side wall of the first hole 32a protrudes from the side wall of the second hole 32b to form the first protrusion 321.

[0075] Furthermore, as shown in FIG. 14, the cosmetic cover 33 is movably provided within the engagement groove 32, and when the hook body 311 (see FIG. 15) is not engaged with the lock hook groove 325, the cosmetic cover 33 can close the groove opening of the engagement groove 32. The cosmetic cover 33 has a first end 331 that is away from the bottom wall 322 of the engagement groove 32 and a second end 332 that faces the bottom wall 322 of the engagement groove 32. A second convex portion 333 is provided at the second end 332, and the second convex portion 333 is positioned between the bottom wall 322 of the engagement groove 32 and the first convex portion 321. The second convex portion 333 is configured to abut against the first convex portion 321 to positionally restrict the cosmetic cover 33 within the engagement groove 32. In this embodiment, the cosmetic cover 33 is an integrally formed member. By connecting the first back plate 2121 and the second back plate 2122, the first convex portion 321 is formed, and it is possible to conveniently attach the cosmetic cover 33 within the engagement groove 32.

[0076] Furthermore, the cosmetic cover 33 can be switched between a third position and a fourth position. When the cosmetic cover 33 is in the third position, the second convex portion 333 abuts against the first convex portion 321, and the first end 331 is flush with the surface of the backrest 212, thereby covering the groove opening of the engagement groove 32. In this way, it is possible to prevent external objects from falling into the engagement groove 32, make the appearance of the high chair 2 cleaner and more aesthetic, and further avoid pinching. When the cosmetic cover 33 is in the fourth position, the first end 331 and the first convex portion 321 are provided with a gap therebetween, whereby the hook body 311 can be engaged with the lock hook groove 325, and further realize the fixed connection of the infant basket 9 to the backrest 212.

[0077] As shown in FIG. 14, the third elastic member 34 is provided between the bottom wall 322 of the engagement groove 32 and the decorative cover 33, and the third elastic member 34 is configured to urge the decorative cover 33 to move to the third position. The third elastic member 34 includes a spring. Specifically, a third convex portion 323 may be provided on the bottom wall 322 of the engagement groove 32, and a receiving hole 324 is provided in the third convex portion 323. The decorative cover 33 has a fourth convex portion 334, and the fourth convex portion 334 may be provided facing the receiving hole 324. One end of the third elastic member 34 is externally fitted to the third convex portion 323, and the other end is inserted into the receiving hole 324, thereby preventing the third elastic member 34 from being displaced during the deformation process.

[0078] In some embodiments, as shown in FIG. 16, the high chair 2 has a first member and a second member that can move relative to each other, and adjustment mechanisms 23a and 23b respectively connected to the first member and the second member. The adjustment mechanisms 23a and 23b can be switched between a locked state and an unlocked state. When the adjustment mechanisms 23a and 23b are in the unlocked state, the first member can move relative to the second member along predetermined directions D1 and D2. When the adjustment mechanisms 23a and 23b are in the locked state, the first member is fixed relative to the second member.

[0079] Also, referring to FIG. 16, the first member may be the mounting base 211, and the second member may be the side plate 213. The predetermined direction is the direction D1 in which the mounting base 211 moves away from or approaches the backrest 212, or the reverse direction of direction D1, that is, the front-rear direction shown in FIG. 16. The adjustment mechanism may include a first adjustment mechanism 23a. The mounting base 211 is connected to the two side plates 213 by two first adjustment mechanisms 23a respectively, and can move in the direction D1 or the reverse direction of direction D1 by the first adjustment mechanism 23a.

[0080] As shown in FIGS. 17 to 19, the first adjustment mechanism 23a includes a connection base 231, a lock member 232, a drive member 233, a fourth return member 234, an operation member 235, and a plurality of lock holes 236. The operation member 235 abuts against the lock member 232 by the drive member 233 and drives the operation of the lock member 232 by the drive member 233. The fourth return member 234 is configured to urge the lock member 232 to return the lock member 232 to the initial position.

[0081] Referring to FIGS. 18 and 19, the plurality of lock holes 236 are provided in one of the placement base 211 (i.e., the first member) and the side plate 213 (i.e., the second member) and are arranged in the direction D1. The lock member 232 is movably connected to the other of the placement base 211 (i.e., the first member) and the side plate 213 (i.e., the second member). Specifically, the lock member 232 is pivotally connected to the other of the placement base 211 and the side plate 213. In this embodiment, the plurality of lock holes 236 are provided in the side plate 213. The lock member 232 is pivotally connected to the placement base 211. The lock member 232 can be inserted and fitted into at least one of the plurality of lock holes 236, thereby releasably fixedly connecting the placement base 211 to the side plate 213. A first strip-shaped groove 2131 is further provided in the side plate 213. The plurality of lock holes 236 are provided in the bottom wall of the first strip-shaped groove 2131 and communicate with the first strip-shaped groove 2131. Further, a first strip-shaped block 2132 is provided in the first strip-shaped groove 2131. The first strip-shaped block 2132 is fixed to the bottom wall of the first strip-shaped groove 2131, and the plurality of lock holes 236 are uniformly distributed on the first strip-shaped block 2132. A first strip-shaped block 2132 having lock holes 236 is provided in the first strip-shaped groove 2131, which is convenient for processing and manufacturing.

[0082] Furthermore, one end of the connection base 231 is movably connected to one of the placement base 211 and the side plate 213, and the connection base 231 is fixed to the other of the placement base 211 and the side plate 213. In this embodiment, the connection base 231 is movably connected to the side plate 213 and fixedly connected to the placement base 211. Specifically, the connection base 231 is fixedly connected to the second side surface 2112 of the placement base 211 (see FIG. 16), thereby avoiding interfering with the boarding of infants. One end of the connection base 231 away from the placement base 211 is movably connected to the side plate 213. The connection base 231 is movable relative to the side plate 213 together with the placement base 211. As shown in FIGS. 18 and 19, the connection base 231 has a storage groove 2311 for storing the locking member 232. The storage groove 2311 has a side wall 23111 and a bottom wall 23112. The bottom wall 23112 of the storage groove 2311 is provided opposite to the bottom wall of the first strip-shaped groove 2131. The side wall 23111 of the storage groove 2311 is at least partially received in the first strip-shaped groove 2131 and is movable along the first strip-shaped groove 2131. A strip-shaped hole 2312 through which the driving member 233 exits is provided in the bottom wall 23112 of the storage groove 2311.

[0083] Specifically, as shown in FIGS. 18 and 19, the lock member 232 includes a lock portion 2321 and a lock body 2322. The lock body 2322 is pivotally connected to the connection base 231 by a pivot shaft 237. The lock portion 2321 is provided at one end of the lock body 2322. In this embodiment, the lock member 232 is housed in the housing groove 2311 and is pivotally connected to the side wall 23111 of the housing groove 2311 by the pivot shaft 237. The lock member 232 can be switched between a locked position and an unlocked position. When the lock member 232 is in the locked position, as shown in FIG. 18, the lock portion 2321 extends out from the groove opening of the housing groove 2331 and can be inserted and fitted into any one of the lock holes 236. When the lock member 232 is in the unlocked position, as shown in FIG. 19, the lock portion 2321 releases the fitting with any one of the lock holes 236, that is, the lock portion 2321 exits from any one of the lock holes 236. The lock body 2322 is operable so that the lock portion 2321 can be switched between the locked position and the unlocked position. The fourth return member 234 is configured to urge the lock member 232 to pivot the lock member 232 to the locked position.

[0084] As shown in FIGS. 18 and 19, the drive member 233 includes a drive portion 2332 and an operation portion 2331. The drive portion 2332 abuts against the lock body 2322. The operation portion 2331 extends out from the connection base 231 through the strip-shaped hole 2312 and is operated. The operation portion 2331 is operated so that the drive portion 2332 presses against and pivots the lock body 2322, thereby driving the switching between the locked position and the unlocked position of the lock member 232. The operation portion 2331 is movable along the strip-shaped hole 2312, and the hole wall of the strip-shaped hole 2312 is configured to abut against the operation portion 2331 to limit the movement stroke of the drive member 233. In this embodiment, the moving direction of the operation portion 2331 is parallel to the direction D1.

[0085] Furthermore, as shown in FIGS. 18 and 19, the driving portion 2332 has a first abutting slope 23321, and the lock body 2322 is provided with a second abutting slope 2323 facing the first abutting slope 23321. Also, the second abutting slope 2323 and the locking portion 2321 are respectively located on both sides of the pivot axis 237. When the operating portion 2331 is pushed and moved, the driving portion 2332 moves following the operating portion 2331, and the first abutting slope 23321 abuts against the second abutting slope 2323 to drive the pivoting of the locking member 232 around the pivot axis 237. Also, the first abutting slope 23321 is provided at a certain angle with respect to the moving direction of the operating portion 2331 and is not perpendicular to the moving direction of the operating portion 2331. The moving direction of the operating portion 2331 is parallel to the direction D1.

[0086] Furthermore, as shown in FIGS. 18 and 19, a first position restricting surface 23221 and a second position restricting surface 23222 are formed on the side of the lock body 2322 facing the lock hole 236. The first position restricting surface 23221 and the locking portion 2321 are located on one side of the pivot axis 237, and the second abutting slope 2323 and the second position restricting surface 23222 are located on the other side of the pivot axis 237. The first position restricting surface 23221 and the second position restricting surface 23222 are provided at a certain angle, and the specific angle may be set according to actual requirements. The locking portion 2321 is provided to protrude from the first position restricting surface 23221, whereby the locking portion 2321 can extend into the lock hole 236. When the locking member 232 is in the locked position, the first position restricting surface 23221 abuts against the first strip-shaped block 2132 to prevent excessive pivoting of the locking member 232. When the locking member 232 is in the unlocked position, the second position restricting surface 23222 abuts against the first strip-shaped block 2132 to prevent excessive pivoting of the locking member 232. The locking member 232 further includes a protrusion 2324 used for attaching the fourth return member 234. The protrusion 2324 is provided at one end of the lock body 2322 and is provided facing away from the locking portion 2321. Specifically, the protrusion 2324 extends in a direction away from the locking portion 2321, that is, the protrusion 2324 extends in the direction of the bottom wall 23112 of the storage groove 2311.

[0087] As shown in FIGS. 18 and 19, the fourth return member 234 includes a spring and is housed in the housing groove 2311. A concave groove 2314 is provided in the bottom wall 23112 of the housing groove 2311. One end of the fourth return member 234 is inserted into the concave groove 2314, and the other end is inserted and fitted to the protrusion 2324, thereby preventing the displacement of the fourth return member 234 during the pivoting process of the lock member 232.

[0088] As shown in FIGS. 18 and 19, the operating member 235 is fixed to one end away from the driving portion 2332 of the operating portion 2331, and the operating member 235 is configured to be operated. The operating member 235 moves to move the driving member 233, and further drives the pivoting of the lock member 232. A guide groove 2313 is provided in the connection base 231, and a part of the operating member 235 is housed in the guide groove 2313 and is movable along the guide groove 2313. The guide groove 2313 communicates with the strip-shaped hole 2312, and its extending direction is parallel to the first predetermined direction D1. The operating member 235 has an operating surface, and anti-slip ribs 2351 are provided on the operating surface, which is convenient for pressing against the operating surface to move the operating member 235. In this embodiment, the direction D1 is the direction toward the backrest 212.

[0089] The operating principle of the first adjustment mechanism 23a will be described in detail below.

[0090] As shown in Fig. 18, when it is necessary to adjust the relative position between the mounting base 211 and the side plate 213, the operating member 235 is pushed along the direction D1. The operating member 235 moves the driving member 233 in the direction D1. The second abutting slope 2323 abuts against the first abutting slope 23321 along the direction D1, and the locking member 232 pivots in the R1 direction (in this embodiment, counterclockwise) against the elastic force of the fourth return member 234. Then, the locking portion 2321 releases the engagement with one of the plurality of locking holes 236, whereby the mounting base 211 is movable relative to the side plate 213. After moving the mounting base 211 to the required position, the operating member 235 is released, that is, the external force applied to the operating member 235 is removed. The locking member 232 pivots in the reverse direction of R1 under the action of the elastic force of the fourth return member 234, and the locking portion 2321 re-engages with the other of the plurality of locking holes 236. And by the driving cooperation of the first abutting slope 23321 and the second abutting slope 2323, the driving member 233 returns to the initial position along the direction D1, and further returns the operating member 235 to the initial position together.

[0091] In some embodiments, as shown in Fig. 16, the high chair 2 further includes a pedal 24 located between the two support legs 22. The pedal 24 is movable relative to the two support legs 22. Specifically, the pedal 24 is movably connected between the two front support legs 221. In this embodiment, the first member may be the support leg 22, and the second member may be the pedal 24. The predetermined direction is the direction D2 in which the pedal 24 moves away from or approaches the mounting base 211 or the reverse direction of the direction D2, that is, the vertical direction shown in Fig. 21. The adjustment mechanism includes a second adjustment mechanism 23b. The pedal 24 is respectively connected to the two support legs 22 through the two second adjustment mechanisms 23b and is movable along the second predetermined direction D2 by the second adjustment mechanism 23b.

[0092] Referring to FIGS. 20 and 21, the second adjustment mechanism 23b has basically the same structure as the first adjustment mechanism 23a, and both include a connection base 231, a locking member 232, a driving member 233, a fourth return member 234, an operating member 235, and a plurality of locking holes 236. The difference between the second adjustment mechanism 23b and the first adjustment mechanism 23a is that the connection base 231 of the second adjustment mechanism 23b is fixedly connected to the pedal 24 and movably connected to the support leg 22, and the plurality of locking holes 236 are provided in the support leg 22, and the pedal 24 is releasably connected to the support leg 22. Specifically, a second strip-shaped groove 225 is provided in the support leg 22. A part of the connection base 231 is housed in the second strip-shaped groove 225 and is movable along the second strip-shaped groove 225. A second strip-shaped block 226 is provided in the second strip-shaped groove 225, and the second strip-shaped block 226 is fixedly connected to the bottom wall of the second strip-shaped groove 225. The plurality of locking holes 236 are provided in the second strip-shaped block 226 and communicate with the second strip-shaped groove 225. Regarding the operating principle of the second adjustment mechanism 23b, reference may be made to the operating principle of the first adjustment mechanism 23a, so it will not be repeated here.

[0093] In some embodiments, as shown in FIGS. 2, 22, and 23, the infant seat assembly further includes a meal tray 4 and a stopper member 5. The stopper member 5 can limit the infant on the placement base 211 of the high chair 2, and can prevent the infant from accidentally falling from the gap between the meal tray 4 and the placement base 211. When the infant seat assembly is in the second use mode, the engaging device 1 is not connected to the high chair 2. One end of the stopper member 5 is connected to the meal tray 4, and the other end is removably connected to the placement base 211.

[0094] Furthermore, as shown in FIGS. 22 and 23, an elastic finger 51 is provided at the other end of the stopper member 5. One end of the elastic finger 51 is a free end 513 and extends in the direction of the meal tray 4. The elastic finger 51 has a second engaging protrusion 511, and the mounting base 211 has a second engaging hole 2113 provided therethrough. The second engaging protrusion 511 passes through the mounting base 211 via the second engaging hole 2113 and abuts against the end face of the mounting base 211 facing away from the meal tray 4 (i.e., the second side face 2112 of the mounting base 211), thereby detachably connecting the meal tray 4 to the mounting base 211. The elastic finger 51 further has an operation protrusion 512, and the operation protrusion 512 is provided close to the free end 513 with respect to the second engaging protrusion 511, and the operation protrusion 512 can be pressed. When the elastic finger 51 is inserted and fitted into the second engaging hole 2113, the operation protrusion 512 is located between the meal tray 4 and the first side face 2111 of the mounting base, which is convenient for pressing the operation protrusion 512. The stopper member 5 further has a position regulating protrusion 52, and the position regulating protrusion 52 can abut against the first side face 2111 of the mounting base 211, thereby preventing the meal tray 4 from moving excessively in the direction of the mounting base 211. When it is necessary to remove the meal tray 4, the elastic finger 51 is pressed (specifically, the operation protrusion 512 of the elastic finger 51 is pressed) to deform the elastic finger 51, whereby the second engaging protrusion 511 releases the engagement with the second side face 2112, and the stopper member 5 detaches from the second engaging hole 2113, and the meal tray 4 can be removed from the stopper member 5.

[0095] The engaging device 1 and the infant seat assembly have at least the following technical effects.

[0096] By connecting the engaging device 1 to the horizontal rod 91 of the infant basket 9 and the mounting base 211 of the high chair 2 respectively, the infant basket 9 can be conveniently and stably fixed to the high chair 2, which is not only convenient for the caregiver to take care of the infant when eating, but also convenient for the infant and the caregiver to eat together.

[0097] Furthermore, the placement base 211 can slide relative to the side plates 213 to adjust the sitting space of the high chair 2 (i.e., the space surrounded by the placement base 211, the backrest 212, the side plates 213, etc.), so it can be suitable for children of different body types or different age groups, and can also be applied to the attachment of infant baskets 9 of different sizes.

[0098] All the technical features of the embodiments described above can be arbitrarily combined. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered to be within the scope described in this specification.

Description of Reference Numerals

[0099] 1 Engagement device 11 Engagement base 111 Engagement groove 1111 Second side wall 1112 First side wall 112 Storage cavity 113 Second engagement surface 114 First protrusion 116 Accommodation groove 117 Indication window 118 Opening groove 12 First engagement mechanism 121 Lock release member 1211 Engagement portion 1212 Connection portion 1213 First engagement surface 1214 Wedge surface 122 First elastic member 123 Indication member 1231 First driving slope 1232 Indication mark 124 Pusher member 1241 Contact end 1242 Second driving slope 125 Second elastic member 13 Attachment groove 14 Second engagement mechanism 141 Engagement member 1411 First engagement hole 142 Elastic arm 1421 First engagement protrusion 15 Mounting groove 2 High chair 21 Seat body 211 Placing base 2111 First side surface 2112 Second side surface 2113 Second engagement hole 212 Backrest 2121 First back plate 2122 Second back plate 213 Side plate 2131 First strip-shaped groove 2132 First strip-shaped block 22 Support leg 221 Front support leg 222 Rear support leg 223 Front horizontal rod 224 Rear horizontal rod 225 Second strip-shaped groove 226 Second strip-shaped block 23a First adjustment mechanism 231 Connection base 2311 Storage groove 23111 Side wall of storage groove 23112 Bottom wall of storage groove 2312 Strip-shaped hole 2313 Guide groove 2314 Concave groove 232 Locking member 2321 Locking part 2322 Locking body 2322c Third segment 23221 First position regulating surface 23222 Second position regulating surface 2323 Second pressing inclined surface 2324 Protrusion 233 Driving member 2331 Operating part 2332 Driving part 23321 First pressing inclined surface 234 Fourth return member 235 Operating member 2351 Anti-slip rib 236 Lock hole 237 Pivoting shaft 23b Second adjustment mechanism 24 Pedal 3 Third engagement mechanism 31 Lock hook member 311 Hook body 32 Engagement groove 321 First hole part 322 Second hole part 321 First convex part 322 Bottom wall of engagement groove 323 Third convex part 324 Receiving hole 325 Lock hook groove 33 Decorative cover 331 First end 332 Second end 333 Second convex part 334 Fourth convex part 34 Third elastic member 4 Meal tray 5 Stopper member 51 Elastic finger 511 Second engagement protrusion 512 Operating protrusion 52 Position regulating protrusion 9 Infant basket 91 Horizontal rod

Claims

1. 1. An engagement device configured to secure an infant basket having a cross rod to a high chair having a mounting base, the engagement device comprising: an engagement base for connecting with the mounting base; a first engagement mechanism movably mounted on the engagement base and configured to releasably engage the transverse rod to the engagement base; An engagement device characterized in that the first engagement mechanism includes an unlocking member that is movably connected to the engagement base and can be switched between a locked state and an unlocked state, the unlocking member has an engagement portion, and when the unlocking member is in the locked state, the engagement portion engages with the horizontal rod, and when the unlocking member is in the unlocked state, the horizontal rod releases engagement with the engagement portion.

2. 2. The engagement device of claim 1, wherein a storage cavity is formed inside the engagement base, the unlocking member is at least partially located within the storage cavity, the portion of the unlocking member located within the storage cavity has a connection portion, the connection portion is pivotally connected to a cavity wall of the storage cavity, and the engagement portion extends from the storage cavity and is engageable with the cross rod.

3. 2. The engagement device according to claim 1, wherein the engagement portion has a first engagement surface, the engagement base has a second engagement surface, and when the unlocking member is in a locked state, the first engagement surface and the second engagement surface are opposed to each other, and the horizontal rod is engaged between the first engagement surface and the second engagement surface.

4. 2. The engagement device according to claim 1, wherein the unlocking member is movably connected to the engagement base, the engagement portion having a wedge-shaped surface, the wedge-shaped surface being configured to be pressed against the lateral rod to move the unlocking member.

5. 5. The engagement device of claim 4, wherein the engagement portion has a first engagement surface, and when the unlocking member is in a locked state, the cross rod is engaged between the first engagement surface and the engagement base, and the wedge-shaped surface and the first engagement surface are interconnected and angled.

6. The unlocking member has a first position and a second position, When the unlocking member is in the first position and in a locked state, the unlocking member is movable from a locked state through the second position to an unlocked state; 2. The engagement device according to claim 1, wherein when the unlocking member is in the first position and in an unlocked state, the unlocking member is movable from the unlocked state through the second position to a locked state.

7. 7. The engagement device of claim 6, wherein the engagement portion has a wedge-shaped surface configured to press against the transverse rod to move the unlocking member from the first position to the second position.

8. The engagement device according to claim 1, characterized in that the first engagement mechanism further includes an indicator member, which is movably mounted on the engagement base and is switchable between at least two indicator states to indicate an engaged or disengaged state between the unlocking member and the horizontal rod.

9. 9. The engagement device according to claim 8, characterized in that the indicator member is provided with indication marks for indicating at least two respective indication states, a storage cavity is formed inside the engagement base, the indicator member is provided within the storage cavity, and an indication window is provided in the engagement base for displaying one of the indication marks.

10. 9. The engagement device of claim 8, wherein the at least two indication states include a first indication state for indicating that the transverse rod is disengaged from the first engagement mechanism and a second indication state for indicating that the transverse rod is engaged with the first engagement mechanism.

11. 9. The engagement device according to claim 8, wherein the first engagement mechanism further includes a pusher member, the pusher member being movably mounted on the engagement base and being used to drive switching of the support member between at least two support states.

12. 12. The engagement device according to claim 11, wherein the pusher member is switchable between an extended position and a retracted position, and when the pusher member is switched from the extended position to the retracted position, the pusher member presses the indicating member so as to switch from a first indicating state for indicating that the horizontal rod is to be disengaged from the first engagement mechanism to a second indicating state for indicating that the horizontal rod is to be engaged with the first engagement mechanism.

13. 12. The engagement device of claim 11, wherein the indexing member has a first drive ramp and a second drive ramp is provided at one end of the pusher member, the second drive ramp being configured to abut the first drive ramp to drive the indexing member to switch between the at least two indexing states.

14. 12. The engagement device according to claim 11, wherein the pusher member is switchable between an extended position and a retracted position, and when the pusher member is in the retracted position, the lateral rod is engageable between the first engagement surface and the pusher member, and when the pusher member is in the extended position, the lateral rod disengages from the first engagement surface.

15. An engagement device configured to secure an infant basket having a transverse rod to a high chair having a mounting base, comprising: an engagement base for connecting with the mounting base; a first engagement mechanism movably mounted on the engagement base and configured to releasably engage the transverse rod to the engagement base; a second engagement mechanism; The second engagement mechanism includes: an engaging member connected to the mounting base and having a first engaging hole; An elastic arm connected to the engagement base; a first engagement protrusion provided on the elastic arm and engageable with the first engagement hole.

16. The engagement device described in claim 15, characterized in that the engagement member and the mounting base form a mounting groove in which at least a portion of the engagement base is mounted, and when at least a portion of the engagement base is inserted into the mounting groove, the elastic arm enters the mounting groove and the first engagement protrusion is engaged with the first engagement hole.

17. 17. The engagement device according to claim 16, characterized in that the engagement base has an open groove, one end of the elastic arm is connected to a groove wall of the open groove, the first engagement protrusion has an engagement position in which it protrudes from the open groove and a retracted position in which it does not protrude from the open groove, and when the first engagement protrusion is in the engagement position, the first engagement protrusion is engageable with the first engagement hole, and during the process of inserting the engagement base into the mounting groove, the engagement member is capable of pressing the first engagement protrusion to move it to the retracted position, and the elastic arm is configured to bias the first engagement protrusion to move it to the engagement position.

18. 16. The engagement device according to claim 15, wherein an engagement groove is provided in the engagement base, and when the first engagement protrusion is engaged with the first engagement hole, at least a portion of the mounting base is inserted into the engagement groove.

19. The engagement device described in claim 17, characterized in that the engagement base has an engagement groove, the engagement groove has a first side wall, the opening groove is provided in the first side wall, the engagement member and the mounting base form a mounting groove into which the engagement base is inserted, and when at least a portion of the engagement base is inserted into the mounting groove, at least a portion of the mounting base is inserted into the engagement groove, and the first engagement protrusion is engaged with a first engagement hole.

20. A highchair and an engagement device according to any one of claims 1 to 19, An infant seat assembly, wherein the engagement device allows an infant carrier to be removably attached to a mounting base of the high chair.

21. 21. The infant seat assembly of claim 20, further comprising a third engagement mechanism, the high chair further comprising a backrest, the third engagement mechanism allowing the infant basket to be removably connected to the backrest.

22. The third engagement mechanism includes an engagement groove and a lock hook member. The engagement groove is provided in the backrest, a first protrusion is provided on a side wall of the engagement groove, and the first protrusion and a bottom wall of the engagement groove form a lock hook groove with a gap therebetween; 22. The infant seat assembly of claim 21, wherein the locking hook member is provided on the infant basket, the locking hook member having a hook body configured to engage within the locking hook groove to secure the locking hook member within the engagement groove.

23. The infant seat assembly of claim 22, wherein the third engagement mechanism further includes a decorative cover movably mounted in the engagement groove, and when the hook body is not engaged with the lock hook groove, the decorative cover is capable of closing the groove mouth of the engagement groove.

24. The infant seat assembly of claim 23, characterized in that the decorative cover has a first end away from the bottom wall of the engagement groove and a second end facing the bottom wall of the engagement groove, a second protrusion is provided at the second end, the second protrusion is located between the bottom wall of the engagement groove and the first protrusion, the decorative cover is switchable between a third position and a fourth position, when the decorative cover is in the third position, the first end is flush with the surface of the backrest and the second protrusion abuts the first protrusion, and when the decorative cover is in the fourth position, the second protrusion and the first protrusion are spaced apart so that the hook body can engage with the lock hook groove.

25. 21. The infant seat assembly of claim 20, wherein the highchair comprises first and second members movable relative to each other and an adjustment mechanism connected to the first and second members, the adjustment mechanism being switchable between a locked state and an unlocked state, and when the adjustment mechanism is in the unlocked state, the first member is movable relative to the second member along a predetermined direction, and when the adjustment mechanism is in the locked state, the first member is fixed relative to the second member.

26. The adjustment mechanism includes a plurality of lock holes and a lock member. the plurality of lock holes are provided in one of the first member and the second member and are arranged in the predetermined direction; 26. The infant seat assembly of claim 25, wherein the locking member is movably connected to the other of the first member and the second member, the locking member includes a locking portion and is switchable between a locked position and an unlocked position, and when the locking member is in the locked position, the locking portion is inserted and engaged into any of the locking holes, and when the locking member is in the unlocked position, the locking portion releases its engagement with any of the plurality of locking holes.

27. 27. The infant seat assembly of claim 26, wherein the locking member further includes a locking body, the locking body being pivotally connected to the other of the first member and the second member by a pivot axis, the locking portion being provided at one end of the locking body, and the locking body being operable to switch the locking portion between the locked position and the unlocked position.

28. 28. The infant seat assembly of claim 27, wherein the adjustment mechanism further includes a drive member, the drive member including a drive portion and an operating portion, the drive portion abutting the lock body, and the operating portion being operable by the drive portion to press against and pivot the lock body.

29. 28. The infant seat assembly of claim 27, wherein the adjustment mechanism further includes a drive member, the drive member including a drive portion and an operating portion, the drive portion having a first pressing slope, the lock body being provided with a second pressing slope opposite to the first pressing slope, and the operating portion being operable so that the second pressing slope presses against the first pressing slope to pivot the lock member.

30. The infant seat assembly of claim 26, further comprising a connection base, the connection base being fixed to the other of the first member and the second member, the connection base having a storage groove, the locking member being movably disposed in the storage groove, and the locking portion extending from a groove opening of the storage groove and capable of being inserted and fitted into any of the locking holes.

31. The infant seat assembly of claim 30, wherein the adjustment mechanism further includes a drive member, the drive member including a drive portion and an operating portion, the drive portion abuts against the locking member, a strip-shaped hole is provided on the bottom wall of the storage groove, the operating portion extends from the connection base through the strip-shaped hole to be operated, and the operating portion is operable by the drive portion to drive the switching of the locking member between the locked position and the unlocked position.

32. An infant seat assembly including a high chair and an engagement device, The engagement device is configured to secure a baby basket having a cross rod to a high chair having a mounting base; The engagement device is an engagement base for connecting with the mounting base; a first engagement mechanism movably mounted on the engagement base and configured to releasably engage the transverse rod to the engagement base; the engagement device allows an infant carrier to be removably attached to the mounting base of the high chair; The infant seat assembly further includes a third engagement mechanism, the high chair further includes a backrest, and the third engagement mechanism allows the infant basket to be removably connected to the backrest.

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