Rotating mechanism, ceiling structure and child carrier

Abstract

The invention relates to a child carrier, a ceiling structure of the child carrier and a rotating mechanism of the ceiling structure. The rotating mechanism is used for installing a ceiling on a carrier. And the rotating mechanism comprises a rotating seat and a fixed seat. The rotating seat is suitable for being connected with the ceiling, and the rotating seat comprises a disc-shaped part and a connecting rib arranged on the disc-shaped part. The fixing base is suitable for being connected with the carrier. The fixing base comprises a fixing base body and a connecting flange suitable for being connected with the connecting rib in a clamped mode, and the connecting flange is connected to the fixing base body. Wherein the connecting flange is provided with an avoiding groove, and the connecting rib can penetrate through the avoiding groove and is clamped with the connecting flange, so that the rotating seat is connected to the fixed seat and can pivot around a rotating axis relative to the fixed seat.

Description

Technical Field

[0001] The present invention relates to the technical field of children's equipment, and in particular to a rotating mechanism, a canopy structure with the rotating mechanism, and a children's carrier with the canopy structure. Background Art

[0002] Children's carriers are generally provided with a canopy structure to better protect children from direct sunlight or mosquito bites. The canopy structure can at least be switched between an unfolded state and a folded state, so as to meet different usage requirements. Some canopy structures currently on the market have problems such as complex structure, inconvenient assembly and disassembly, and lack of aesthetics. In addition, there may be problems such as high production cost and heavy weight. Summary of the invention

[0003] In order to solve the above problems, the present invention provides a rotating mechanism, a canopy structure having the rotating mechanism, and a child carrier having the canopy structure.

[0004] According to one aspect of the present application, a rotating mechanism is provided, which is used to install a canopy on a carrier. The rotating mechanism includes a rotating seat and a fixed seat.

[0005] The rotating seat is suitable for being connected with the roof, and comprises a disc-shaped portion and a connecting rib arranged on the disc-shaped portion.

[0006] The fixing seat is suitable for being connected with the carrier, and comprises a fixing seat body and a connecting flange suitable for being clamped with the connecting rib, wherein the connecting flange is connected to the fixing seat body.

[0007] The connecting flange is provided with an avoidance groove, and the connecting rib can pass through the avoidance groove and be clamped with the connecting flange, so that the rotating seat is connected to the fixed seat and can pivot around the rotation axis relative to the fixed seat.

[0008] Furthermore, the fixing seat also includes a boss portion arranged on the fixing seat body, and the connecting flange is arranged on the boss portion.

[0009] Further, the connecting flange is arranged on the end of the boss portion for cooperating with the disc-shaped portion, and the connecting rib is arranged on the end surface of the disc-shaped portion for cooperating with the fixing seat.

[0010] Further, the connecting flange extends in a direction away from the rotation axis on a plane perpendicular to the rotation axis, and the connecting rib extends in a direction close to the rotation axis on a plane perpendicular to the rotation axis.

[0011] Further, the connecting ribs include a first connecting rib and a second connecting rib, the size of the first connecting rib in the circumferential direction around the rotation axis is larger than the size of the second connecting rib in the circumferential direction around the rotation axis, and the avoidance groove includes a first avoidance groove suitable for cooperating with the first connecting rib and a second avoidance groove suitable for cooperating with the second connecting rib.

[0012] Further, the dimension of the first connecting rib in the radial direction perpendicular to the rotation axis is smaller than the dimension of the second connecting rib in the radial direction perpendicular to the rotation axis.

[0013] A dimension of the first avoidance groove in a radial direction perpendicular to the rotation axis is smaller than a dimension of the second avoidance groove in a radial direction perpendicular to the rotation axis.

[0014] Furthermore, one of the end surface of the boss portion and the disc-shaped portion is provided with a positioning recess, and the other of the end surface of the boss portion and the disc-shaped portion is provided with a positioning convex, the positioning convex is suitable for cooperating with the positioning recess so that the rotating seat can be locked relative to the fixed seat in at least a first rotation position and a second rotation position, and the rotating seat can rotate between the first rotation position and the second rotation position.

[0015] Further, the disc-shaped portion includes a rotating seat bottom wall and a rotating seat side wall connected to the rotating seat bottom wall, the rotating seat side wall is distributed along the circumferential direction around the rotation axis, the rotating seat side wall is suitable for at least partially surrounding the boss portion, the rotating seat bottom wall is provided with a positioning convexity, and the end surface of the boss portion for cooperating with the rotating seat bottom wall is provided with a positioning recess.

[0016] Furthermore, the number of the positioning recesses is an integer multiple of the number of the positioning protrusions.

[0017] Furthermore, the boss portion is provided with a protrusion protruding in a direction parallel to the rotation axis, and a positioning recess is formed on the protrusion.

[0018] Furthermore, the bottom wall of the rotating seat is provided with a through hole for increasing the elastic deformation amount of the positioning protrusion.

[0019] Furthermore, the through hole is closer to the rotation axis than the positioning protrusion.

[0020] Furthermore, one of the fixed seat body and the rotating seat is provided with an inserting hole, and the other of the fixed seat body and the rotating seat is provided with an inserting column suitable for matching with the inserting hole.

[0021] Further, the fixing seat body is provided with a connecting recess, and the connecting recess is suitable for at least partially accommodating the carrier to connect the fixing seat to the carrier.

[0022] Further, the fixing seat body includes a first wall portion, a second wall portion arranged opposite to the first wall portion, and a circumferential wall portion connected between the first wall portion and the second wall portion, the first wall portion, the second wall portion and the circumferential wall portion enclose a connecting recess, the first wall portion extends away from the circumferential wall portion to form an elastic arm, and a side surface of the elastic arm facing the second wall portion is provided with a snap-fitting protrusion,

[0023] The carrier comprises a surrounding tube and a connecting seat connected to the surrounding tube. When the connecting recess at least partially accommodates the connecting seat, the engaging protrusion can be engaged with the connecting seat to detachably connect the fixing seat to the carrier.

[0024] Furthermore, the fixing seat body includes a first wall portion, a second wall portion arranged opposite to the first wall portion, and a circumferential wall portion connected between the first wall portion and the second wall portion. The first wall portion, the second wall portion and the circumferential wall portion together form a connecting recess. A side surface of the first wall portion facing the second wall portion has a snap-fitting protrusion, so that when the connecting recess at least partially accommodates the surrounding tube of the carrier, the snap-fitting protrusion can snap-fit ​​with the surrounding tube to detachably connect the fixing seat to the carrier.

[0025] According to another aspect of the present application, a canopy structure is provided, which is used to be installed on a carrier. The canopy structure includes a canopy and a rotating mechanism in any of the above embodiments.

[0026] The canopy has canopy strips which are used to be connected with the rotating mechanism so as to convert the canopy between a folded state and an unfolded state.

[0027] Further, the roof strip includes a first roof strip, the rotating seat also includes a first connecting portion connected to the disc-shaped portion and extending in a direction away from the rotating axis, and the first roof strip is detachably connected to the first connecting portion.

[0028] Furthermore, the first roof strip can rotate relative to the fixing seat between a first position and a second position.

[0029] When the first canopy strip is in the first position, the canopy is in the folded state, and when the first canopy strip is in the second position, the canopy is in the unfolded state; or

[0030] When the first canopy strip is located at the first position, the canopy is in an extended state, and when the first canopy strip is located at the second position, the canopy is in a folded state.

[0031] Furthermore, the first roof strip can rotate relative to the fixing seat between a first position and a second position.

[0032] When the first roof strip is at the first position, the angle between the plane where the first roof strip is located and the plane where the surrounding tube of the carrier is located is the largest. When the first roof strip is at the second position, the first roof strip and the surrounding tube of the carrier are in the same plane.

[0033] Further, the roof strip includes a first roof strip and a second roof strip, the rotating seat also includes a first connecting portion connected to the disc-shaped portion and extending in a direction away from the rotation axis, the first roof strip is detachably connected to the first connecting portion,

[0034] The fixing seat body of the fixing seat is provided with a second connecting portion extending in a direction away from the rotation axis, and the second roof strip is detachably connected to the second connecting portion.

[0035] Furthermore, the first roof strip can rotate relative to the fixing seat between a first position with a minimum angle relative to the second roof strip and a second position with a maximum angle relative to the second roof strip, and the roof has a first side located between the first roof strips.

[0036] When the first canopy strip is in the first position, the first side of the canopy is retracted relative to the carrier, and when the first canopy strip is in the second position, the first side of the canopy is unfolded relative to the carrier; or

[0037] When the first roof strip is located at the first position, the first side of the first roof strip is unfolded relative to the carrier, and when the first roof strip is located at the second position, the first side of the roof is folded relative to the carrier.

[0038] Further, the roof strip includes a third roof strip. The fixing seat body of the fixing seat is also provided with a third connecting portion extending in a direction away from the rotation axis, the extending direction of the second connecting portion is at an angle to the extending direction of the third connecting portion, and the third roof strip is detachably and rotatably connected to the third connecting portion.

[0039] Further, the third roof bar can rotate relative to the fixing seat between a third position with a minimum angle relative to the second roof bar and a fourth position with a maximum angle relative to the second roof bar. The roof has a second side located between the second roof bar and the third roof bar.

[0040] When the third roof strip is in the third position, the second side of the roof is folded relative to the carrier, and when the third roof strip is in the fourth position, the second side of the roof is unfolded relative to the carrier; or

[0041] When the third roof strip is located at the third position, the second side of the roof is unfolded relative to the carrier, and when the third roof strip is located at the fourth position, the second side of the roof is folded relative to the carrier.

[0042] Further, when the first roof strip is in the second position, the first roof strip and the surrounding tube of the carrier are in the same plane, and when the third roof strip is in the fourth position, the third roof strip and the surrounding tube of the carrier are in the same plane.

[0043] According to another aspect of the present application, a child carrier is provided, comprising a carrier and a canopy structure in any one of the above embodiments, wherein the canopy structure is connected to the carrier.

[0044] The child carrier, canopy structure and rotating mechanism of the present application realize a rotatable connection between the rotating seat and the fixed seat through the mutual engagement between the connecting rib and the connecting flange, so that the canopy can be switched between the unfolded state and the folded state by adjusting the pivot angle between the rotating seat and the fixed seat, thereby making the canopy adapt to different usage requirements. By providing an avoidance groove, when the connecting rib is aligned with the avoidance groove, the rotating seat and the fixed seat can be quickly disassembled and assembled, thereby realizing the rapid disassembly and assembly between the canopy and the carrier; and the two can realize the pivotal connection with each other without the need for additional connecting parts, so the structure is simple and the cost is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 is a schematic structural diagram of a child carrier according to some embodiments of the present application;

[0046] Figure 2 yes Figure 1 A front view of a child carrier;

[0047] Figure 3 yes Figure 1 A schematic diagram of the structure of the carrier of the child carrier and a partial enlarged diagram of its connection seat;

[0048] Figure 4 yes Figure 2 A cross-sectional view of the child carrier along AA and a partial enlarged view of its rotating mechanism;

[0049] Figure 5 is a structural schematic diagram of a canopy structure according to some embodiments of the present application and a partial enlarged diagram of its rotating mechanism;

[0050] Figure 6 is a schematic diagram of the structure of the canopy structure according to other embodiments of the present application and a partial enlarged diagram of its rotating mechanism;

[0051] Figure 7 is a structural schematic diagram of a canopy structure according to some other embodiments of the present application and a partial enlarged diagram of its rotating mechanism;

[0052] Figure 8 yes Figure 5 A front view of the mid-roof structure with the swivel mount in an installed or removed position;

[0053] Fig. 9 yes Figure 8 A top view of the mid-canopy structure;

[0054] Fig.10 yes Fig. 9 A cross-sectional view of the middle canopy structure along the BB and a partial enlarged view of its rotating mechanism;

[0055] Fig.11 yes Figure 5 a front view of the mid-roof structure with the pivot seat in a first position;

[0056] Fig.12 yes Fig.11 A top view of the mid-canopy structure;

[0057] Fig.13 yes Fig.12 A cross-sectional view of the middle canopy structure along CC and a partial enlarged view of its rotation mechanism;

[0058] Fig.14 Yes Yes Figure 5 a front view of the mid-roof structure with the pivot seat in a second position;

[0059] Fig.15 yes Fig.14 A top view of the mid-canopy structure;

[0060] Fig.16 yes Fig.15 The cross-sectional view of the middle canopy structure along DD and the partial enlarged view of its rotating mechanism;

[0061] Fig.17 yes Fig.14 A cross-sectional view of the rotating mechanism of the middle canopy structure along EE;

[0062] Fig.18 is a schematic structural diagram of a fixing seat of a rotating mechanism according to some embodiments of the present application;

[0063] Fig.19 yes Fig.18 A front view of the middle fixing seat; and

[0064] Fig. 20 It is a front view of a rotating seat of a rotating mechanism according to some embodiments of the present application.

[0065] Reference numerals

[0066] 1. carrier, 11. frame, 111. surrounding tube, 111a. straight tube, 111b. arc tube, 12. supporting leg, 13. connecting seat, 131. connecting seat body, 1311. plug-in slot, 1312. receiving slot, 1313. notch, 13121. first side wall, 13122. second side wall, 132. locking assembly,

[0067] 2. Roof structure,

[0068] 21. Rotation mechanism

[0069] 211, fixed seat,

[0070] 2111, fixed seat body, 21111, first wall portion, 21112, second wall portion, 21113, circumferential wall portion, 21114, connecting recess, 21115, elastic arm, 21116, engaging protrusion, 21117, convex column portion, 21118, plug-in hole,

[0071] 2112, boss portion, 21121, hollow inner cavity, 2113, connecting flange, 2114, avoidance groove, 2114a, first avoidance groove, 2114b, second avoidance groove, 2115, second connecting portion, 21151, second insertion groove, 2116, third connecting portion, 2117, connecting groove, 2118, protrusion, 2119, positioning recess,

[0072] 212, rotating seat, 2121, first connecting portion, 2122, first inserting groove, 2123, disc-shaped portion, 21231, rotating seat bottom wall, 21232, rotating seat side wall, 21233, accommodating groove, 2124, connecting rib, 2124a, first connecting rib, 2124b, second connecting rib, 2125, positioning protrusion, 2126, through hole, 2127, plug-in column,

[0073] 22. Roof, 221. Roof strip, 2211. First roof strip, 2212. Second roof strip, 2213. Third roof strip,

[0074] R, rotation axis, L1, arc length of the first connecting rib, L2, arc length of the second connecting rib, LR1, arc length of the first avoidance groove, LR2, arc length of the second avoidance groove, D1, width of the first connecting rib, D2, width of the second connecting rib, H1, depth of the first avoidance groove, H2, depth of the first avoidance groove. DETAILED DESCRIPTION

[0075] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0076] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0077] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0078] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0079] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0080] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0081] According to an embodiment of the present invention, a child carrier is provided. Figures 1 to 4 As shown, the child carrier includes a carrier 1 and a canopy structure 2 connected to the carrier 1. The carrier 1 may be a child stroller, an infant carrier, a child safety seat, a child bed, a child swing, etc. The following description will be made using a child bed as the carrier 1.

[0082] like Figures 1 to 4 As shown, the carrier 1 includes a frame 11 formed by a plurality of surrounding tubes 111 and suitable for connecting to the canopy structure 2, and a plurality of supporting legs 12 connected to the frame 11. The frame 11 includes a first frame 11a and a second frame 11b arranged opposite to the first frame 11a. The first frame 11a is generally U-shaped or C-shaped, and the second frame 11b is generally U-shaped or C-shaped. The two ends of the first frame 11a and the two ends of the second frame 11b are respectively connected to form a closed frame 11. The canopy structure 2 can at least partially cover the opening range defined by the frame 11 to protect children from being bitten by mosquitoes or being exposed to direct sunlight, etc. Among them, the surrounding tube 111 includes an arc tube 111b and a straight tube 111a. The first frame 11a includes an arc tube 111b and a straight tube 111a respectively connected to the two ends of the arc tube 111b, and the second frame 11b can have the same structure as the first frame 11a, or can only include the arc tube 111b. Alternatively, the second frame 11b includes an arc tube 111b and straight tubes 111a connected to both ends of the arc tube 111b, and the first frame 11a includes only the arc tube 111b. The frame formed by the arc tube 111b and the straight tube 111a can be easily stored, and the arc tube 111b can prevent children or their caregivers from being hurt by the frame 11. In other embodiments, the frame 11 can also be a closed structure formed by connecting a single surrounding tube end to end, which is not limited in this application.

[0083] In some embodiments, Figures 1 to 4As shown, a connecting seat 13 is provided on the frame 11, and the first frame 11a and the second frame 11b are respectively connected to the two ends of the connecting seat 13. The canopy structure 2 is connected to the frame 11 through the connecting seat 13. In this embodiment, there are two connecting seats 13, and the two ends of the first frame 11a are respectively connected to one end of each connecting seat 13, and the two ends of the second frame 11b are respectively connected to the other end of each connecting seat 13. Specifically, the two ends of the first frame 11a are respectively pivotally connected to one end of each connecting seat 13, and the two ends of the second frame 11b are respectively pivotally connected to the other end of each connecting seat 13. The connecting seat 13 can realize the quick folding and unfolding of the first frame 11a and the second frame 11b on the one hand; on the other hand, the canopy structure 2 can be detachably connected to the carrier 1, so that the canopy structure 2 can be conveniently and quickly disassembled and assembled. In other embodiments, the connection seat 13 may also be used only for the detachable connection between the first frame 11a and the second frame 11b, and the canopy structure 2 is connected to the carrier 1 at other positions of the carrier 1, and this application does not limit this. In other embodiments, the connection seat 13 may also be set to one or more than two, and those skilled in the art may adjust the number of the connection seats 13 accordingly as needed, and this application does not limit this. For ease of description, one of the connection seats 13 is used as an example for description below.

[0084] Furthermore, if Figure 3 and Figure 4 As shown, the connection base 13 includes a connection base body 131 and a locking assembly 132 operably arranged on the connection base body 131. The connection base body 131 is generally a rectangular block structure. The connection base body 131 is provided with a plug-in slot 1311. Specifically, there are two plug-in slots 1311, and the two plug-in slots 1311 are arranged opposite to each other. The opening end of one of the plug-in slots 1311 faces left, and the opening end of the other plug-in slot 1311 faces right. The two ends of the first frame 11a and the two ends of the second frame 11b can be respectively plugged and matched with the corresponding plug-in slots 1311. The locking assembly 132 can switch between a locked state and a released state. When the locking assembly 132 is in a locked state, the two ends of the first frame 11a and the two ends of the second frame 11b are respectively restricted in the corresponding plug-in slots 1311, so that the two ends of the first frame 11a and the two ends of the second frame 11b cannot be disengaged from the corresponding plug-in slots 1311. At this time, the first frame 11a and the second frame 11b cannot pivot relative to the connecting seat body 131, so that the frame 11 cannot be folded; when the locking assembly 132 is in a released state, the two ends of the first frame 11a and the two ends of the second frame 11b can be disengaged from the plug-in slots 1311. At this time, the first frame 11a and the second frame 11b can pivot relative to the connecting seat body 131, so that the frame 11 can be folded. The specific structure of the locking assembly 132 is not the focus of this application and will not be elaborated here. Refer to Figure 4 The connection seat body 131 is also provided with a receiving groove 1312, and the locking assembly 132 can be at least partially received in the receiving groove 1312. The opening end of the receiving groove 1312 faces downward to prevent children or their caregivers from accidentally touching the locking assembly 132. The receiving groove 1312 has a first side wall 13121 and a second side wall 13122 opposite to the first side wall 13121. A notch 1313 is formed at the lower end of the second side wall 13122, and the notch 1313 passes through the second side wall 13122, so as to facilitate the operation of the locking assembly 132 through the notch 1313.

[0085] Figure 2 and Figure 5 FIG. 1 is a schematic diagram of a canopy structure 2 according to an embodiment of the present application. The canopy structure 2 is detachably connected to the connection seat 13. In other embodiments, the canopy structure 2 can also be connected to the frame 11. The first frame 11a and the second frame 11b are respectively located on both sides of the canopy structure 2. Figure 2 and Figure 5 The canopy structure 2 includes a rotating mechanism 21 and a canopy 22 connected to the rotating mechanism 21. The canopy 22 includes a canopy strip 221 and a tarpaulin (not shown in the drawings) connected to the canopy strip 221. The canopy strip 221 is suitable for connecting with the rotating mechanism 21 to unfold or fold the tarpaulin, so that the canopy 22 can be in a folded state and an unfolded state (refer to Fig.14 ). In this embodiment, each canopy structure 2 includes two rotating mechanisms 21, and both ends of the canopy strip 221 are respectively connected to the corresponding rotating mechanisms 21. In other embodiments, each canopy structure 2 may include one or more than two rotating mechanisms 21, which is not limited in this application.

[0086] In some embodiments, Figure 5 , Figures 11 to 16As shown, the canopy strip 221 includes a first canopy strip 2211, a second canopy strip 2212 and a third canopy strip 2213. The rotating mechanism 21 includes a fixed seat 211 and a rotating seat 212. The first canopy strip 2211 is connected to the rotating seat 212, and the second canopy strip 2212 and the third canopy strip 2213 are respectively connected to the fixed seat 211. The canopy 22 includes a first side located between the first canopy strip 2211 and the second canopy strip 2212 and a second side located between the third canopy strip 2213 and the second canopy strip 2212. When the rotating seat 212 pivots relative to the fixed seat 211, the first canopy strip 2211 drives at least a portion of the tarpaulin to unfold and fold, that is, the first side of the canopy 22 switches between the unfolded state and the folded state. The third canopy strip 2213 is pivotally connected to the fixed seat 211. When the third canopy strip 2213 rotates relative to the fixing base 211, the second side of the canopy 22 switches between the extended state and the retracted state. In this embodiment, when the first side of the canopy 22 and the second side of the canopy 22 are both in the retracted state (not shown in the drawings), the canopy is in the retracted state. When the first side of the canopy 22 and the second side of the canopy 22 are both in the extended state, the canopy is in the extended state (refer to Fig.14 ). When the first side of the canopy 22 is in the folded state and the second side of the canopy 22 is in the unfolded state (refer to Fig.11 ), or when the second side of the canopy 22 is in the folded state and the first side of the canopy 22 is in the unfolded state (not shown in the drawings), the canopy is in a semi-expanded state (or semi-folded state).

[0087] Furthermore, if Figure 5 , Figures 11 to 16 As shown, each rotating seat 212 has a first connecting portion 2121 extending in a direction away from the rotating axis R. The first roof strip 2211 is detachably connected to the first connecting portion 2121. The first connecting portion 2121 is provided with a first insertion groove 2122, and the ends of the first roof strip 2211 are detachably inserted into the corresponding first insertion grooves 2122. When the rotating seat 212 rotates relative to the fixed seat 211, the first roof strip 2211 can rotate relative to the fixed seat 211 between a first position with the smallest angle relative to the second roof strip 2212 and a second position with the largest angle relative to the second roof strip 2212. In this embodiment, when the first roof strip 2211 is in the first position (refer to Fig.11 ), the first side of the canopy 22 is folded relative to the carrier 1, that is, the first side of the canopy 22 is in a folded state; when the first canopy strip 2211 is in the second position (refer to Fig.14 ), the first side of the canopy 22 is unfolded relative to the carrier 1, that is, the first side of the canopy 22 is in the unfolded state. In other embodiments not shown, it is also possible that when the first canopy strip 2211 is in the second position (refer to Fig.14), the first side of the canopy 22 is folded relative to the carrier 1, that is, the first side of the canopy 22 is in a folded state; and when the first canopy strip 2211 is in the first position (refer to Fig.11 ), the first side of the canopy 22 is unfolded relative to the carrier 1, that is, the second side of the canopy 22 is in an unfolded state. This application does not impose any limitation on this.

[0088] Please refer to Figure 2 , the second canopy strip 2212 is located between the first canopy strip 2211 and the third canopy strip 2213. The second canopy strip 2212 is substantially perpendicular to the plane where the frame 11 is located, that is, the second canopy strip 2212 is substantially located in a vertical plane. Specifically, when the first canopy strip 2211 is located at the first position (refer to Fig.11 ), the angle between the first canopy strip 2211 and the second canopy strip 2212 is approximately 0°, that is, the plane where the first canopy strip 2211 is located substantially coincides with the plane where the second canopy strip 2212 is located, that is, the plane where the first canopy strip 2211 is located is substantially perpendicular to the plane where the first frame 11a is located. Fig.14 ), the angle between the first canopy strip 2211 and the second canopy strip 2212 is the largest (for example, about 90°). In this embodiment, when the first canopy strip 2211 is in the second position, the plane where the first canopy strip 2211 is located is parallel to or coincides with the plane where the frame 11 is located. In some embodiments, when the first canopy strip 2211 is in the second position, the first canopy strip 2211 just surrounds the outside of the first frame 11a and fits with the first frame 11a.

[0089] Furthermore, if Figure 5 , Figures 11 to 16As shown, each fixing seat 211 is provided with a second connection portion 2115 and a third connection portion 2116 extending in a direction away from the rotation axis R. The second connection portion 2115 and the third connection portion 2116 form an angle, and the angle between the second connection portion 2115 and the third connection portion 2116 can be set according to actual needs. In this embodiment, the angle between the second connection portion 2115 and the third connection portion 2116 is, for example, about 90°. The second canopy strip 2212 is detachably connected to the second connection portion 2115. The second connection portion 2115 is provided with a second insertion groove 21151, and the two ends of the second canopy strip 2212 are detachably inserted into the corresponding second insertion groove 21151. The third canopy strip 2213 is detachably and rotatably connected to the third connection portion 2116, so that the third canopy strip 2213 can rotate between a third position with the smallest angle relative to the second canopy strip 2212 and a fourth position with the largest angle relative to the second canopy strip 2212. In this embodiment, when the third canopy strip 2213 is located at the third position, the second side of the canopy 22 is folded relative to the carrier 1, that is, the second side of the canopy 22 is in a folded state; when the third canopy strip 2213 is located at the fourth position, the second side of the canopy 22 is unfolded relative to the carrier 1. In other embodiments, when the third canopy strip 2213 is located at the fourth position, the second side of the canopy 22 is folded relative to the carrier 1, that is, the second side of the canopy 22 is in a folded state; when the third canopy strip 2213 is located at the third position, the second side of the canopy 22 is unfolded relative to the carrier 1. This application is not limited to this.

[0090] Please refer to Figure 2 When the third canopy strip 2213 is in the third position (not shown in the drawings), the plane where the third canopy strip 2213 is located is parallel to the plane where the second canopy strip 2212 is located, that is, the angle between the third canopy strip 2213 and the second canopy strip 2212 is approximately 0°, that is, the third canopy strip 2213 is substantially perpendicular to the plane where the frame 21 is located. Fig.14 ), the angle between the third canopy bar 2213 and the second canopy bar 2212 is the largest. Specifically, when the third canopy bar 2213 is at the fourth position, the plane where the third canopy bar 2213 is located is parallel to or coincides with the plane where the second frame 11b is located, and the angle between the third canopy bar 2213 and the second canopy bar 2212 is approximately 90°. In some embodiments, when the third canopy bar 2213 is at the fourth position, the third canopy bar 2213 just surrounds the outside of the second frame 11b and fits with the second frame 11b.

[0091] In this embodiment, when the first canopy strip 2211 is in the first position and the third canopy strip 2213 is in the third position (not shown in the drawings), that is, when the first side of the canopy 22 and the second side of the canopy 22 are both in the folded state, the angle between the first canopy strip 2211 and the third canopy strip 2213 is the smallest (approximately 0°), and the canopy 22 is in the folded state. Fig.14 ), that is, when the first side of the canopy 22 and the second side of the canopy 22 are both in the unfolded state, the angle between the first canopy strip 2211 and the third canopy strip 2213 (i.e., the maximum unfolding angle of the canopy 22) is approximately 180°, the first canopy strip 2211 is located in a plane substantially parallel to or coincident with the first frame 11a, and the third canopy strip 2213 is located in a plane substantially parallel to or coincident with the second frame 11b, and the canopy 22 is in the unfolded state. When the angle between the first canopy strip 2211 and the third canopy strip 2213 is greater than 0° and less than 180°, for example, 60°, 130°, etc., the canopy 22 is in a semi-folded state or semi-expanded state (refer to Fig.11 ).

[0092] The canopy structure 2 of this embodiment can completely cover the frame 11 of the carrier 1 when the canopy 22 is in the unfolded state, avoiding the formation of a gap between the canopy 22 and the carrier 1, so that the canopy structure has a good protective shielding effect.

[0093] In other embodiments, Figure 6 As shown, the canopy strip 221 includes a first canopy strip 2211 and a second canopy strip 2212. The main difference between this embodiment and the previous embodiment is that the third canopy strip 2213 is not provided, and accordingly, the fixing seat 211 may not be provided with the third connecting portion 2116. In this embodiment, the second canopy strip 2212 may be substantially perpendicular to the frame 11, or may be at a non-right angle to the frame 11, such as 60°, 80°, etc. When the canopy 22 (or the first side of the canopy 22) is in the unfolded state, the angle between the first canopy strip 2211 and the second canopy strip 2212 (i.e., the maximum unfolding angle of the canopy 22) may be selected by a person skilled in the art as needed, and this application does not limit this. The structural arrangement in this embodiment is the same as that in the previous embodiment, and will not be repeated here. The canopy structure 2 of this embodiment may be at least partially covered above the frame 11, which has both a protective effect and is convenient for observation.

[0094] In some other embodiments, Figure 7As shown, the canopy strip 221 includes a first canopy strip 2211. In this embodiment, neither the second canopy strip 2212 nor the third canopy strip 2213 is provided. Accordingly, the fixing seat 211 may also not be provided with the second connecting portion 2115 and the third connecting portion 2116. The specific arrangement of the first canopy strip 2211 in this embodiment can refer to the above embodiment. In this embodiment, the side of the canopy 22 away from the first canopy strip 2211 is connected to the frame 11 (for example, the first frame 11a) of the carrier 1, so that when the first canopy strip 2211 rotates between the first position and the second position, the canopy 22 switches between the folded state and the opened state. When the first canopy strip 2211 is in the first position, the first canopy strip 2211 is located in a plane parallel to or coincident with the plane where the first frame 11a is located, the two sides of the canopy 22 are relatively close, and the canopy 22 is in the folded state. When the first canopy strip 2211 is in the second position, the two sides of the canopy 22 are relatively far apart, and the canopy 22 is in an extended state. In other embodiments not shown, when the first canopy strip 2211 is in the second position, the canopy 22 is in a folded state; when the first canopy strip 2211 is in the first position, the two sides of the canopy 22 are relatively far apart, and the canopy 22 is in an extended state. This application does not limit this. Figure 7 The canopy structure 2 shown can be at least partially covered above the frame 11, which has both a protective effect and is convenient for observation. The canopy 22 in this embodiment has a simple structure, which reduces the weight of the canopy 22 and reduces the production cost of the canopy 22.

[0095] The present application also provides a rotation mechanism suitable for connecting the canopy 22 to the carrier 21. For ease of description, the following description is made by taking the rotation mechanism 21 on one side of the canopy 22 as an example. Figure 1 , Figure 2 and Figure 4 As shown, the rotating mechanism 21 includes a fixing seat 211 suitable for connecting to the carrier 1 and a rotating seat 212 rotatably connected to the fixing seat 211. The fixing seat 211 is detachably connected to the connecting seat 13 of the carrier 1 to achieve quick disassembly and assembly between the canopy 22 and the carrier 1. In some other embodiments not shown, the fixing seat 211 can be fixedly connected to the connecting seat 13. In other embodiments not shown, the fixing seat 211 can be connected to the frame 11 of the carrier 1. This application does not limit this.

[0096] Reference Figures 8 to 16 The rotating seat 212 has an installation or removal position relative to the fixed seat 211 (refer to Figures 8 to 10 ), and the rotating seat 212 can be at least in the first rotation position (refer to Figures 11 to 13 ) and the second rotation position (refer to Figures 14 to 16) to rotate between the first position and the second position, thereby driving the first roof strip 2211 to rotate between the first position and the second position. Figures 8 to 10 ), the rotating seat 212 can be engaged with or separated from the fixed seat 211 along the direction of the pivot axis R. When the rotating seat 212 is in the first rotating position (refer to Figures 11 to 13 ), the first roof strip 2211 is located at the first position. When the rotating seat 212 is located at the second rotating position (refer to Figures 14 to 16 ), the first roof strip 2211 is located at the second position.

[0097] In some embodiments, Fig.10 , Figures 17 to 19 As shown, the fixed seat 211 includes a fixed seat body 2111 suitable for connecting with the carrier 1, a boss portion 2112 arranged on the side of the fixed seat body 2111 facing away from the carrier 1, and a connecting flange 2113 extending circumferentially from the end of the boss portion 2112. The fixed seat body 2111 and the connecting flange 2113 are respectively connected to the two ends of the boss portion 2112, and a connecting groove 2117 suitable for at least a part of the rotating seat 212 to be clamped is formed between the fixed seat body 2111 and the connecting flange 2113. The second connecting portion 2115 and the third connecting portion 2116 are respectively connected to the fixed seat body 2111, and extend in a direction away from the rotation axis R. In this embodiment, the rotating seat 212 can be an integrally molded component made of plastic by injection molding.

[0098] Furthermore, if Figures 17 to 19 As shown, the fixed seat body 2111 includes a first wall portion 21111, a second wall portion 21112 arranged opposite to the first wall portion 21111, and a circumferential wall portion 21113 connected between the first wall portion 21111 and the second wall portion 21112. The first wall portion 21111, the second wall portion 21112 and the circumferential wall portion 21113 enclose a connecting recess 21114. The cross section of the second wall portion 21112 on a plane perpendicular to the rotation axis R is substantially circular. The cross section of the circumferential wall portion 21113 on a plane perpendicular to the rotation axis R is in the shape of an arc, and the longitudinal section of the circumferential wall portion 21113 on a radial plane parallel to the rotation axis R is in the shape of an arc. The second connecting portion 2115 and the third connecting portion 2116 are respectively arranged on the outer circumferential surface of the fixed seat body 2111. Specifically, the second connection portion 2115 is connected to the circumferential wall portion 21113, and the third connection portion 2116 is connected to the second wall portion 21112. The first wall portion 21111 extends away from the circumferential wall portion 21113 to form an elastic arm 21115, and the elastic arm 21115 is provided with a locking protrusion 21116.

[0099] Please refer to Figure 4When at least a portion of the connection base 13 is accommodated in the connection recess 21114, the engaging protrusion 21116 can engage with the connection base body 131 of the connection base 13 to detachably connect the fixing base 211 to the carrier 1. Specifically, when the connection base body 131 of the connection base 13 is at least partially accommodated in the connection recess 21114 of the fixing base body 2111, the engaging protrusion 21116 can engage with the lower edge or lower end of the first side wall 13121 of the accommodation groove 1312, so that the fixing base 211 can be more firmly connected to the connection base 13. When it is necessary to remove the rotating mechanism 21 from the carrier 1, an external force F can be applied to the elastic arm 21115 to disengage the engaging protrusion 21116 from the lower edge or lower end of the first side wall 13121, that is, the engaging protrusion 21116 is disengaged from the lower edge or lower end of the first side wall 13121. At this time, the rotating mechanism 21 can be separated from the connecting seat 13, thereby realizing the removal of the rotating mechanism 21 from the carrier 1.

[0100] In other embodiments where the connection seat 13 is not provided, the connection recess 21114 is adapted to at least partially accommodate the frame 11 of the carrier 1. When at least a portion of the frame 11 is accommodated in the connection recess 21114, the engaging protrusion 21116 can engage with the frame 11, thereby detachably connecting the fixing seat 211 to the carrier 1. Specifically, when the surrounding tube 111 (e.g., the straight tube 111a) of the frame 11 is accommodated in the connection recess 21114, the engaging protrusion 21116 can engage with the lower edge of the surrounding tube 111, such as the straight tube 111a. With such a configuration, the canopy 22 can be quickly engaged with the carrier 1.

[0101] In some embodiments, Figures 17 to 19 As shown, the boss portion 2112 is an annular structure having a hollow inner cavity 21121, and the cross section of the boss portion 2112 on a plane perpendicular to the rotation axis R is circular. One end of the boss portion 2112 is connected to the fixed seat body 2111, and the other end of the boss portion 2112 is provided with a connecting flange 2113, so that the rotating seat 212 can be rotatably connected to the fixed seat 211. In other embodiments not shown, the boss portion 2112 may not be provided, and the connecting flange 2113 may be provided on the fixed seat body 2111, for example, on the outer peripheral surface of the second wall portion 21112, for example, the connecting flange 2113 may be directly extended from the edge of the second wall portion 21112 in the circumferential direction.

[0102] In some embodiments, Fig.10 , Fig.13 and Fig. 20As shown, the rotating seat 212 includes a disc-shaped portion 2123, and the first connecting portion 2121 is arranged in the circumference of the disc-shaped portion 2123 and extends in the direction away from the rotation axis R. The rotating seat 212 can be an integrally molded component made of plastic by injection molding. The disc-shaped portion 2123 is provided with a connecting rib 2124, and the connecting rib 2124 is suitable for engaging with at least a portion of the connecting flange 2113 so that the rotating seat 212 is connected to the fixed seat 211 and can pivot around the rotation axis R relative to the fixed seat 211. Among them, the connecting flange 2113 is provided with an avoidance groove 2114 that can allow the connecting rib 2124 to pass through, so that when the connecting rib 2124 cooperates with the avoidance groove 2114 (that is, when the connecting rib 2124 is aligned with the avoidance groove 2114), the rotating seat 212 can be engaged with or separated from the fixed seat 211.

[0103] The rotating mechanism 21 of this embodiment realizes the rotatable connection between the rotating seat 212 and the fixed seat 211 through the mutual engagement between the connecting rib 2124 and the connecting flange 2113, so that the canopy 22 can be switched between the unfolded state and the folded state by adjusting the pivot angle between the rotating seat 212 and the fixed seat 211, thereby enabling the canopy 22 to adapt to different usage requirements. In addition, by providing the avoidance groove 2114, when the connecting rib 2124 is aligned with the avoidance groove 2114, the rotating seat 212 and the fixed seat 211 can be quickly disassembled and assembled, that is, the canopy 22 and the carrier 1 can be quickly disassembled and assembled, and the two can realize the pivotal connection with each other without the need for additional connecting parts, and the structure is simple and the cost is low.

[0104] Furthermore, if Fig.17 and Fig. 20As shown, the cross section of the disc-shaped portion 2123 on a plane perpendicular to the rotation axis R is substantially circular. The disc-shaped portion 2123 includes a rotating seat bottom wall 21231 and a rotating seat side wall 21232 connected to the rotating seat bottom wall 21231. The rotating seat bottom wall 21231 and the rotating seat side wall 21232 enclose a receiving groove 21233, so that at least a portion of the fixed seat 211 can be accommodated in the receiving groove 21233. The rotating seat side wall 21232 is distributed along the circumferential direction around the rotation axis R, and the rotating seat side wall 21232 is suitable for at least partially surrounding the boss portion 2112, and the connecting rib 2124 is provided on the rotating seat side wall 21232. When the rotating seat 212 is connected to the fixed seat 211, at least a portion of the connecting rib 2124 is inserted into the connecting groove 2117 and is engaged with at least a portion of the connecting flange 2113, so that the connecting rib 2124 is at least partially confined in the connecting groove 2117 and can rotate around the rotation axis R relative to the fixed seat 211. In this embodiment, the connecting rib 2124 is connected to the end surface of the rotating seat side wall 21232 and is arranged opposite to the rotating seat bottom wall 21231. The connecting rib 2124 extends from the end of the rotating seat side wall 21232 toward the direction close to the rotation axis R, that is, the connecting rib 2124 extends inward from the end of the rotating seat side wall 21232. The connecting flange 2113 of the fixed seat 211 extends from the end of the boss portion 2112 toward the direction away from the rotation axis R. In other embodiments not shown, the boss portion 2112 of the fixed seat 211 faces the disk-shaped portion 2123 of the rotating seat 212 to form a receiving groove 21233 to at least partially accommodate the disk-shaped portion 2123 of the rotating seat 212; the connecting flange 2113 extends from the end of the boss portion 2112 or the side wall of the receiving groove 21233 toward the direction close to the rotation axis R, that is, extends inward, and forms a connecting groove 2117 between the boss portion 2112 and the bottom wall of the receiving groove 21233 that can at least partially accommodate the connecting rib 2124; the connecting rib 2124 of the disk-shaped portion 2123 correspondingly extends from the side wall 21232 of the rotating seat toward the direction away from the rotation axis R (that is, extends outward).

[0105] In one embodiment, if Fig.10 , Fig.17 , Figure 19 to Figure 20 As shown, the connecting ribs 2124 include a first connecting rib 2124a and a second connecting rib 2124b. Fig. 20 The first connecting rib 2124a and the second connecting rib 2124b are distributed along the circumferential direction around the rotation axis R, and the first connecting rib 2124a and the second connecting rib 2124b are generally arc-shaped. The size of the first connecting rib 2124a in the circumferential direction around the rotation axis R is greater than the size of the second connecting rib 2124b in the circumferential direction around the rotation axis R. That is, the arc length L1 of the first connecting rib 2124a is greater than the arc length L2 of the second connecting rib 2124b. Fig.19 and Fig. 20 The avoidance groove 2114 includes a first avoidance groove 2114a adapted to cooperate with the first connecting rib 2124a and a second avoidance groove 2114b adapted to cooperate with the second connecting rib 2124b. The first avoidance groove 2114a and the second avoidance groove 2114b are distributed along the circumferential direction around the rotation axis R, and the size of the first avoidance groove 2114a in the circumferential direction around the rotation axis is greater than the size of the second avoidance groove 2114b in the circumferential direction around the rotation axis. That is, the arc length LR1 of the first avoidance groove 2114a is greater than the arc length LR2 of the second avoidance groove 2114b. In this embodiment, the arc length LR1 of the first avoidance groove 2114a is greater than or equal to the arc length L1 of the first connecting rib 2124a, and the arc length LR2 of the second avoidance groove 2114b is greater than or equal to the arc length L2 of the second connecting rib 2124b, so that the first connecting rib 2124a can pass through the first avoidance groove 2114a and the second connecting rib 2124b can pass through the second avoidance groove 2114b, thereby enabling the first connecting rib 2124a and the second connecting rib 2124b to be engaged or disengaged with the connecting flange 2113. The difference in arc length between the first avoidance groove 2114a and the second avoidance groove 2114b in the circumferential direction can prevent the rotating seat 212 from being disengaged from the fixed seat 211 when it is rotated 180° from the installation position (that is, when the first connecting rib 2124a is aligned with the second avoidance groove 2114a and the second connecting rib 2124b is aligned with the first avoidance groove 2114a), thereby ensuring that the rotating seat can rotate within a larger angle range relative to the fixed seat without disengaging.

[0106] Further, refer to Fig.17 and Fig.19 , the dimension of the first connecting rib 2124a in the radial direction perpendicular to the rotation axis R is smaller than the dimension of the second connecting rib 2124b in the radial direction perpendicular to the rotation axis R. That is, the width D1 of the first connecting rib 2124a in the radial direction of the disc portion is smaller than the width D2 of the second connecting rib 2124b in the radial direction of the disc portion. Correspondingly, the dimension of the first avoidance groove 2114a in the radial direction perpendicular to the rotation axis R is smaller than the dimension of the second avoidance groove 2114b in the radial direction perpendicular to the rotation axis R. That is, the depth H1 of the first avoidance groove 2114a in the radial direction of the boss portion 2112 is smaller than the depth H2 of the second avoidance groove 2114b in the radial direction of the boss portion 2112. It is arranged in this way that when the second connecting rib 2124b is aligned with the first avoidance groove 2114a (refer to Fig.13), at least a portion of the second connecting rib 2124b can be accommodated in the connecting groove 2117 and clamped with the connecting flange 2113, thereby preventing the second connecting rib 2124b from escaping from the first avoidance groove 2114a, and thus making it possible for the rotating seat 212 to be clamped or released from the fixed seat 211 only when the first connecting rib 2124a is aligned with the first avoidance groove 2114a and the second connecting rib 2124b is aligned with the second avoidance groove 2114b, that is, when the rotating seat 212 is in the installation or removal position.

[0107] In this embodiment, if Figure 18 to Figure 19 As shown, the number of the first connecting rib 2124a is one, the number of the second connecting rib 2124b is one, and the first connecting rib 2124a and the second connecting rib 2124b are symmetrically distributed about the rotation axis R, that is, the midpoints of the first connecting rib 2124a and the second connecting rib 2124b are symmetrically distributed about the rotation axis R. Correspondingly, the number of the first avoiding groove 2114a is one, the number of the second avoiding groove 2114b is one, and the first avoiding groove 2114a and the second avoiding groove 2114b are symmetrically distributed about the rotation axis R (that is, the midpoints of the first avoiding groove 2114a and the second avoiding groove 2114b are symmetrically distributed about the rotation axis R). Such symmetrical distribution of the connecting ribs 2124a, 2124b and the avoiding grooves 2114a, 2114b makes the rotating seat 212 more stable during the rotation relative to the fixed seat 211. In other embodiments not shown, the number of the first connecting ribs 2124a may be greater than or equal to two, and the number of the second connecting ribs 2124b may also be greater than or equal to two; accordingly, the number of the first avoiding grooves 2114a may be greater than or equal to two, and the number of the second avoiding grooves 2114b may also be greater than or equal to two. The number of the first avoiding grooves 2114a may also be greater than or equal to the number of the first connecting ribs 2124a, and the number of the second avoiding grooves 2114b may also be greater than or equal to the number of the second connecting ribs 2124b.

[0108] In one embodiment, if Figures 18 to 20As shown, the end surface of the boss portion 2112 is provided with a positioning recess 2119 that is recessed in a direction parallel to the rotation axis R. The disc-shaped portion 2123 is provided with a positioning protrusion 2125, specifically, the rotating seat bottom wall 21231 of the disc-shaped portion 2123 is provided with a positioning protrusion 2125. The positioning protrusion 2125 is suitable for cooperating with the positioning recess 2119 so that the rotating seat 212 can be locked relative to the fixed seat 211 at least in the first rotation position and the second rotation position. The positioning protrusion 2125 can be elastically deformed so that the rotating seat 212 can rotate at least between the first rotation position and the second rotation position under the action of an external force. When the rotating seat 212 is located at the first rotation position, the first roof strip 2211 is located at the first position; when the rotating seat 212 is located at the second rotation position, the first roof strip 2211 is located at the second position. In other embodiments not shown, the end surface of the boss portion 2112 may be provided with a positioning protrusion 2125, and the disc-shaped portion 2123 may be provided with a positioning recess 2119. For example, the bottom wall 21231 of the rotating seat of the disc-shaped portion 2123 may be provided with a positioning recess 2119. This application does not impose any limitation on this.

[0109] Furthermore, the number of the positioning recesses 2119 is an integer multiple of the number of the positioning protrusions 2125. The number of the positioning protrusions 2125 is at least one, and the number of the positioning recesses 2119 is at least two. For example, the number of the positioning protrusions 2125 is two, and the number of the positioning protrusions 2125 is two, four, six, etc. In this embodiment, Figures 18 to 20 As shown, the number of positioning protrusions 2125 is two, and the two positioning protrusions 2125 are symmetrically distributed about the rotation axis R. The number of positioning recesses 2119 is four, and the four positioning recesses 2119 are symmetrically distributed about the rotation axis R. In other embodiments, the number of positioning protrusions 2125 can also be an integer multiple of the number of positioning recesses 2119. The angle between the line connecting two adjacent positioning recesses 2119 and the rotation axis R is approximately 90°, so that the rotating seat 212 can be locked at multiple angular positions spaced 90° apart relative to the fixed seat 211. Figures 11 to 13 , the rotating seat 212 is locked at the first rotating position relative to the fixing seat 211, the first canopy strip 2211 is in the first position, and the first side of the canopy 22 is in the folded state. Figures 14 to 16 , the rotating seat 212 is locked at a second rotating position relative to the fixed seat 211, which is 90° apart from the first rotating position, and the first canopy strip 2211 is in the second position, at which time the first side of the canopy 22 is in an unfolded state. Figures 8 to 10At this time, the rotating seat 212 is locked relative to the fixed seat 211 at a position 180° apart from the first rotating position, and the rotating seat 212 is in the installation or removal position. Those skilled in the art can lock the fixed seat 211 at different angles by adjusting the number of positioning recesses 2119 and positioning protrusions 2125 and the angles between adjacent positioning recesses 2119.

[0110] Furthermore, if Fig.18 and Fig.19 As shown, the boss portion 2112 is provided with a protrusion 2118 protruding in a direction parallel to the rotation axis R, and the protrusion 2118 is formed with the above-mentioned positioning recess 2119. Fig. 20 The protrusion 2118 is provided on the end surface of the boss portion 2112 for cooperating with the disc portion 2123, and is in continuous transition with the end surface of the boss portion 2112 for cooperating with the disc portion 2123. By providing the protrusion 2118, the depth of the positioning recess 2119 along the rotation axis R direction can be increased, thereby increasing the engagement depth of the positioning protrusion 2125 and the positioning recess 2119, so that the positioning protrusion 2125 and the positioning recess 2119 are more firmly engaged. And by providing the protrusion 2118 in continuous transition with the end surface of the boss portion 2112, when the positioning protrusion 2125 is located at the end surface of the boss portion 2112 between two adjacent positioning recesses 2119, the friction between the positioning protrusion 2125 and the end surface of the boss portion 2112 will not be too large, thereby facilitating the rotation of the rotating seat 212 relative to the fixed seat 211, and facilitating the conversion of the canopy 22 between the folded state and the unfolded state.

[0111] Furthermore, if Fig. 20 As shown, the bottom wall 21231 of the rotating seat is provided with a through hole 2126 for increasing the elastic deformation of the positioning protrusion 2125, so that when the rotating seat 212 rotates relative to the fixed seat 211, the rotating seat 212 is easy to elastically deform, thereby reducing the resistance encountered by the rotating seat 212, making it easy for the rotating seat 212 to rotate relative to the fixed seat 211, and thus facilitating the folding or unfolding of the canopy 22. In this embodiment, the through hole 2126 is closer to the rotation axis R than the positioning protrusion 2125. The number of the through holes 2126 is two, and the number of the through holes 2126 can be set according to the number of the positioning protrusions 2125. One or more through holes 2126 can be set near each positioning protrusion 2125 to increase the elastic deformation of the positioning protrusion 2125. Refer to Fig. 20, both through holes 2126 are located between the two positioning protrusions 2125. The two through holes 2126 are symmetrically distributed about the rotation axis R, and are located on the straight line where the connection line of the two positioning protrusions 2125 is located. The through hole 2126 is a bar-shaped hole, and the extension direction of the through hole 2126 is perpendicular to the straight line where the connection line of the two positioning protrusions 2125 is located. In other embodiments not shown, the through hole 2126 can have other shapes, positions and extension directions. The through hole 2126 is, for example, an arc-shaped hole partially surrounding the positioning protrusion 2125, and this application is not limited thereto.

[0112] In one embodiment, if Fig.17 As shown, the fixed seat body 2111 is also provided with a boss portion 21117, which is located in the hollow inner cavity 21121 of the boss portion 2112 and extends along the direction of the rotation axis R. The boss portion 21117 is provided with a plug hole 21118, and the rotating seat 212 is provided with a plug column 2127 suitable for matching with the plug hole 21118. Through the plug-in match between the plug hole 21118 and the plug column 2127, it is convenient to position the rotating seat 212 when it is installed on the fixed seat 211. In another embodiment not shown, the boss portion 21117 may not be provided, and the plug hole 21118 is formed by the hollow inner cavity 21121 of the boss portion 2112. In other embodiments not shown, the rotating seat 212 may be provided with a plug-in hole 21118, and the fixed seat body 2111 may be provided with a plug-in column 2127 suitable for cooperating with the plug-in hole 21118, and the present application does not impose any limitation on this.

[0113] The operating principle of the rotating mechanism in this embodiment is as follows:

[0114] When the canopy structure 2 needs to be installed on the carrier 1 and the canopy structure 2 needs to be adjusted, the fixing seat 211 is clamped with the connecting seat 13, and the first connecting rib 2124a and the second connecting rib 2124b of the rotating seat 212 are aligned with the first avoidance groove 2114a and the second avoidance groove 2114b of the fixing seat 211 respectively (refer to Fig.10 ), at this time, the first connecting rib 2124a and the second connecting rib 2124b enter the connecting groove 2117, and after the rotating seat 212 is further rotated to any angle, the first connecting rib 2124a and the second connecting rib 2124b are engaged with the connecting flange 2113 of the fixing seat 211. Then, the rotating seat 212 is rotated to a position between the first rotating position (refer to Fig.13 ) and the second rotation position (reference Fig.16 ) between the first rotation position and the second rotation position, and then connect the canopy 22 to the rotating seat 212 and the fixed seat 211 respectively. At this time, the rotating seat 212 can be converted between the first rotation position and the second rotation position to achieve the switching of the canopy 22 between the unfolded state and the folded state.

[0115] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0116] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A rotating mechanism for mounting a canopy on a carrier, characterized in that: The rotating mechanism comprises: a rotating seat, adapted to be connected to the canopy, the rotating seat comprising a disc-shaped portion and a connecting rib disposed on the disc-shaped portion; and A fixing seat, adapted to be connected to the carrier, the fixing seat comprising a fixing seat body and a connecting flange adapted to be clamped with the connecting rib, the connecting flange being connected to the fixing seat body; Wherein, the connecting flange is provided with an avoidance groove, and the connecting rib can pass through the avoidance groove and be engaged with the connecting flange, so that the rotating seat is connected to the fixed seat and can pivot around the rotation axis relative to the fixed seat.

2. The rotating mechanism according to claim 1, characterized in that: The fixing seat further comprises a boss portion arranged on the fixing seat body, and the connecting flange is arranged on the boss portion.

3. The rotating mechanism according to claim 2, characterized in that: The connecting flange is arranged on the end of the boss portion for cooperating with the disc-shaped portion, and the connecting rib is arranged on the end surface of the disc-shaped portion for cooperating with the fixing seat.

4. The rotating mechanism according to claim 1, characterized in that: The connecting flange extends in a direction away from the rotation axis on a plane perpendicular to the rotation axis, and the connecting rib extends in a direction close to the rotation axis on a plane perpendicular to the rotation axis.

5. The rotating mechanism according to claim 1, characterized in that: The connecting ribs include a first connecting rib and a second connecting rib, wherein the size of the first connecting rib in the circumferential direction around the rotation axis is larger than the size of the second connecting rib in the circumferential direction around the rotation axis, The avoidance groove includes a first avoidance groove adapted to cooperate with the first connecting rib and a second avoidance groove adapted to cooperate with the second connecting rib.

6. The rotating mechanism according to claim 5, characterized in that: The dimension of the first connecting rib in the radial direction perpendicular to the rotation axis is smaller than the dimension of the second connecting rib in the radial direction perpendicular to the rotation axis. A dimension of the first avoidance groove in a radial direction perpendicular to the rotation axis is smaller than a dimension of the second avoidance groove in the radial direction perpendicular to the rotation axis.

7. The rotating mechanism according to claim 2, characterized in that: The end surface of the boss portion and one of the disc-shaped portions are provided with a positioning recess, and the end surface of the boss portion and the other of the disc-shaped portions are provided with a positioning protrusion, the positioning protrusion is suitable for cooperating with the positioning recess so that the rotating seat can be locked relative to the fixed seat in at least a first rotation position and a second rotation position, and the rotating seat can rotate between the first rotation position and the second rotation position.

8. The rotating mechanism according to claim 7, characterized in that: The disc-shaped portion includes a rotating seat bottom wall and a rotating seat side wall connected to the rotating seat bottom wall, wherein the rotating seat side wall is distributed along a circumferential direction around the rotating axis, and the rotating seat side wall is suitable for at least partially surrounding the boss portion. The bottom wall of the rotating seat is provided with the positioning protrusion, and the end surface of the boss portion used for matching with the bottom wall of the rotating seat is provided with the positioning recess.

9. The rotating mechanism according to claim 7, characterized in that: The number of the positioning recesses is an integer multiple of the number of the positioning protrusions.

10. The rotating mechanism according to claim 7, characterized in that: The boss portion is provided with a protrusion protruding in a direction parallel to the rotation axis, and the positioning recess is formed on the protrusion.

11. The rotating mechanism according to claim 8, characterized in that: The bottom wall of the rotating seat is provided with a through hole for increasing the elastic deformation amount of the positioning protrusion.

12. The rotating mechanism according to claim 11, characterized in that: The through hole is closer to the rotation axis than the positioning protrusion.

13. The rotating mechanism according to claim 1, characterized in that: One of the fixed seat body and the rotating seat is provided with an inserting hole, and the other of the fixed seat body and the rotating seat is provided with an inserting column suitable for matching with the inserting hole.

14. The rotating mechanism according to claim 1, characterized in that: The fixing seat body is provided with a connecting recess, and the connecting recess is suitable for at least partially accommodating the carrier to connect the fixing seat to the carrier.

15. The rotating mechanism according to claim 14, characterized in that: The fixing seat body includes a first wall portion, a second wall portion arranged opposite to the first wall portion, and a circumferential wall portion connected between the first wall portion and the second wall portion, the first wall portion, the second wall portion and the circumferential wall portion enclose the connecting recess, the first wall portion extends away from the circumferential wall portion to form an elastic arm, and a side surface of the elastic arm facing the second wall portion is provided with a locking protrusion, The carrier comprises a surrounding tube and a connecting seat connected to the surrounding tube. When the connecting recess at least partially accommodates the connecting seat, the engaging protrusion can be engaged with the connecting seat to detachably connect the fixing seat to the carrier.

16. The rotating mechanism according to claim 14, characterized in that: The fixing seat body includes a first wall portion, a second wall portion arranged opposite to the first wall portion, and a circumferential wall portion connected between the first wall portion and the second wall portion. The first wall portion, the second wall portion and the circumferential wall portion enclose the connecting recess. A snap-fit ​​protrusion is provided on a side surface of the first wall portion facing the second wall portion, so that when the connecting recess at least partially accommodates the surrounding tube of the carrier, the snap-fit ​​protrusion can be snapped with the surrounding tube to detachably connect the fixing seat to the carrier.

17. A canopy structure for installation on a carrier, characterized in that: The canopy structure comprises: A canopy having canopy strips; The rotating mechanism according to any one of claims 1 to 16; The canopy strip is used to be connected to the rotating mechanism so that the canopy can be switched between a folded state and an unfolded state.

18. The canopy structure according to claim 17, characterized in that: The roof strip includes a first roof strip, and the rotating seat also includes a first connecting portion connected to the disc-shaped portion and extending in a direction away from the rotating axis, and the first roof strip is detachably connected to the first connecting portion.

19. The canopy structure according to claim 18, characterized in that The first roof strip is rotatable relative to the fixing seat between a first position and a second position. When the first canopy strip is located at the first position, the canopy is in a folded state, and when the first canopy strip is located at the second position, the canopy is in an unfolded state; or When the first roof strip is located at the first position, the roof is in an extended state, and when the first roof strip is located at the second position, the roof is in a folded state.

20. The canopy structure according to claim 18, characterized in that The first roof strip is rotatable relative to the fixing seat between a first position and a second position. When the first roof strip is located at the first position, the angle between the plane where the first roof strip is located and the plane where the surrounding tube of the carrier is located is the largest. When the first roof strip is located at the second position, the first roof strip and the surrounding tube of the carrier are in the same plane.

21. The canopy structure according to claim 17, characterized in that: The roof strip includes a first roof strip and a second roof strip, the rotating seat also includes a first connecting portion connected to the disc-shaped portion and extending in a direction away from the rotating axis, and the first roof strip is detachably connected to the first connecting portion. The fixing seat body of the fixing seat is provided with a second connecting portion extending in a direction away from the rotation axis, and the second roof strip is detachably connected to the second connecting portion.

22. The canopy structure according to claim 21, characterized in that The first roof strip can rotate relative to the fixing seat between a first position where the angle with respect to the second roof strip is the smallest and a second position where the angle with respect to the second roof strip is the largest. The canopy has a first side located between the first canopy strips, When the first roof strip is in the first position, the first side of the roof is folded relative to the carrier, and when the first roof strip is in the second position, the first side of the roof is unfolded relative to the carrier; or When the first roof strip is located at the first position, the first side of the first roof strip is unfolded relative to the carrier, and when the first roof strip is located at the second position, the first side of the roof is folded relative to the carrier.

23. The canopy structure according to claim 22, characterized in that The roof strips include a third roof strip, The fixing seat body of the fixing seat is also provided with a third connection portion extending in a direction away from the rotation axis, the extension direction of the second connection portion is at an angle to the extension direction of the third connection portion, and the third roof strip is detachably and rotatably connected to the third connection portion.

24. The canopy structure according to claim 23, characterized in that The third roof strip can rotate relative to the fixing seat between a third position where the angle relative to the second roof strip is the smallest and a fourth position where the angle relative to the second roof strip is the largest. The canopy has a second side located between the second canopy strip and the third canopy strip, When the third canopy strip is located at the third position, the second side of the canopy is folded relative to the carrier, and when the third canopy strip is located at the fourth position, the second side of the canopy is unfolded relative to the carrier; or When the third roof strip is located at the third position, the second side of the roof is unfolded relative to the carrier, and when the third roof strip is located at the fourth position, the second side of the roof is folded relative to the carrier.

25. The canopy structure according to claim 24, characterized in that When the first roof strip is in the second position, the first roof strip and the surrounding tube of the carrier are in the same plane, and when the third roof strip is in the fourth position, the third roof strip and the surrounding tube of the carrier are in the same plane.

26. A child carrier, characterized in that: It comprises a carrier and a canopy structure as claimed in any one of claims 17 to 25, wherein the canopy structure is connected to the carrier.

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