Crib

Abstract

The embodiment of the application provides a baby crib, which comprises a frame structure, the frame structure comprises a plurality of connecting pieces and a plurality of rod pieces, the connecting pieces comprise a first connecting piece, the first connecting piece comprises a first connecting space and a second connecting space, and an inner wall of the first connecting space is provided with a positioning portion. The rod pieces comprise a first rod piece and a second rod piece, a first end portion of the first rod piece is provided with a positioning groove, and at least part of the positioning portion is embedded in the positioning groove; a second end portion of the second rod piece is arranged in the second connecting space, and the distance between the second end portion and the pivot joint of the second rod piece and the first connecting piece is d, the minimum distance between the inner wall of the second connecting space opposite to the end face of the second end portion and the pivot joint is D, and 0.2D <= d <= 0.5D. The application is beneficial to reduce the shearing stress of the fixed connection portion, simultaneously reduce the possibility that the end portion of the second rod piece of the pivot joint portion interferes with the inner wall of the second connecting space, and improve the connection reliability and service life of the frame structure.

Description

Technical Field

[0001] This application relates to the field of baby product technology, and more specifically, to a crib. Background Technology

[0002] Foldable cribs, playpens, and children's beds are widely used due to their ease of storage and transportation. The frames of these products typically consist of multiple rods connected by connectors, and the relative rotation of these rods and connectors allows the product to be switched between an unfolded, usable state and a folded, storage state.

[0003] To create a stable load-bearing space, a frame structure must simultaneously include immovable fixed members and pivotable movable members. However, existing frame structures that integrate both fixing and pivoting functions using a single connector suffer from complex design flaws: at fixed connections, a hole-shaft fit is typically used, which, upon impact, can generate concentrated shear stress on the connecting shaft at the edge of the hole, easily leading to shear fracture and connection failure; at pivoting connections, due to the lack of precise clearance control, the end of the member is prone to interference with the inner wall of the connector during rotation, resulting in operational jamming, component wear, and abnormal noise. Therefore, an innovative solution is urgently needed that can simultaneously improve the impact resistance reliability of composite connectors at fixed connections and the smoothness of movement at pivoting connections. Utility Model Content

[0004] In view of the above problems, this application provides a crib to solve the above problems.

[0005] In a first aspect, this application provides a crib, which includes a frame structure. The frame structure includes multiple connectors and multiple rods. The multiple connectors include a first connector, which includes a first connecting space and a second connecting space spaced apart. The inner wall of the first connecting space is provided with a positioning part, which protrudes relative to the inner wall of the first connecting space. The multiple rods are connected by the multiple connectors and enclose a load-bearing space. The multiple rods include a first rod and a second rod. The first end of the first rod is disposed in the first connecting space and is provided with a positioning groove. At least part of the positioning part is embedded in the positioning groove. The second end of the second rod is disposed in the second connecting space. The second rod is pivotally connected to the first connector. The distance between the pivot point of the second rod and the first connector and the end face of the second end is d. The minimum distance between the inner wall of the second connecting space opposite to the end face of the second end and the pivot point is D. d and D satisfy the relationship 0.2D≤d≤0.5D.

[0006] In some embodiments, the first connector includes a first wall portion that encloses a sidewall forming a first connection space, and the first wall portion also includes a first fixing hole that penetrates itself for fixing the first rod.

[0007] In this configuration, the positioning part and the first fixing hole are located on the same side of the first wall part along the first direction, and the first direction intersects with the recessed direction of the first connecting space.

[0008] In some embodiments, along the first direction and on the same projection plane, the projected area of ​​the first fixing hole is smaller than the projected area of ​​the positioning part.

[0009] In some embodiments, the first connector includes a first wall portion and a second wall portion, the second wall portion being at least located on the side of the second member facing away from the bearing space, the first wall portion and the second wall portion enclosing to form a second connecting space, and a limiting portion being formed at the end of the second wall portion away from the first wall portion, the limiting portion abutting against the second member.

[0010] In some embodiments, the second wall portion tends to approach the second member in a direction away from the first wall portion.

[0011] In some embodiments, the crib also includes: A drape, connecting to the frame structure and at least covering the bottom of the load-bearing space, is provided with connecting through holes; The mattress includes a main body and a connecting part connected together, the connecting part being fixedly connected through a connecting hole to a rod at the bottom that encloses and forms a load-bearing space.

[0012] In some embodiments, at least a portion of the rods forming the bottom of the bearing space is a first rod, the first rod is provided with a slot, and the end of the connecting portion away from the main body is connected to the slot; The slot is located on the side of the first member facing away from the bearing space.

[0013] In some embodiments, the ratio of the distance between the slot and the end face of the first end to the extension length of the first rod is in the range of 0.1 to 0.3.

[0014] In some embodiments, the frame structure includes a foot disposed at the bottom of the bearing space, and the first connector includes a first sub-connector, which is the foot; and / or, the frame structure includes a wheel seat disposed at the bottom of the bearing space, and the first connector includes a second sub-connector, which is the wheel seat.

[0015] In some embodiments, the frame structure further includes a collapsible base located at the bottom of the bearing space and movably disposed along a second direction. One side of the bearing space has an opening, and the second direction is parallel to the opening direction of the bearing space. The end of the first rod furthest from the first connector is pivotally connected to the closing base.

[0016] In the crib provided by this application, by setting a positioning groove and a positioning part, the positioning part can play a supporting role, which helps to disperse the impact force on the connection between the first rod and the first connector, reduce the possibility of shear stress concentration at the connection between the first rod and the first connector, and improve the connection reliability of the first rod and the first connector; by satisfying the relationship between d and D as: 0.2D≤d≤0.5D, it helps to reduce the possibility of the second rod interfering with the structure in the second connection space during rotation, reduce the manufacturing precision of the second rod and the first connector, improve the smoothness of operation, reduce the possibility of wear and abnormal noise between the second rod and the first connector, and improve the user experience.

[0017] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the following are specific embodiments of this application. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments of this application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the drawings without creative effort.

[0019] Figure 1 This application provides structural schematic diagrams of the frame structure in a crib, as shown in some embodiments. Figure 2 A schematic diagram of the frame structure in a crib provided for further embodiments of this application; Figure 3 for Figure 1 A magnified structural diagram of A in the middle; Figure 4 Schematic cross-sectional view of the frame structure in a crib provided in some embodiments of this application Figure 1 ; Figure 5 for Figure 4 A schematic diagram of an enlarged structure of B; Figure 6 for Figure 4 A magnified structural diagram of C; Figure 7 Schematic cross-sectional view of the frame structure in a crib provided in some embodiments of this application Figure 2 ; Figure 8 for Figure 7 A magnified structural diagram of E in the middle; Figure 9 for Figure 7 A magnified structural diagram of F in the middle; Figure 10 for Figure 4 Another enlarged structural diagram of B; Figure 11 This application provides schematic diagrams of the structure of a crib for some embodiments. Figure 12 A bottom view of the crib provided in some embodiments of this application; Figure 13 for Figure 12 A magnified structural diagram of H in the middle; Figure 14 A schematic diagram of the structure of a crib's folding base moving in a second direction under the action of an external force, provided in some embodiments of this application; Figure 15 for Figure 4 A magnified structural diagram of K in the middle; Figure 16 This is a partial top view of a crib provided in some embodiments of this application.

[0020] The reference numerals in the accompanying drawings for the specific embodiments are as follows: 1. First link; 2. Second link; 3. Third link; 100. Frame structure; 200. Enclosure; 300. Mattress; 310. Main body; 320. Connecting part; 321. Second connecting structure; 10. First connector; 10a. First connecting space; 10b. Second connecting space; 11. Positioning part; 12. Pivot joint; 13. First wall part; 14. Second wall part; 141. First sub-part; 142. Second sub-part; 14a. Limiting part; 15. First pivot; 20. First member; 21. First end; 22. Positioning groove; 23. First end face; 24. Slot; 241. First connecting structure; 25. Pivot hole; 30. Second member; 31. Second end; 32. Second end face; 40. Base foot; 50. Wheel seat; 60. Folding base; 61. Second pivot; K1, first fixing hole; K2, second fixing hole; Z, the second direction. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0022] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used in the description of this application is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms "comprising" and "having," and any variations thereof, in the description, claims, and accompanying drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the description, claims, or accompanying drawings of this application are used to distinguish different objects, not to describe a specific order or hierarchy.

[0023] In this application, the reference to "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment that is mutually exclusive with other embodiments.

[0024] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "attachment" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0025] In this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, in this application, the character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0026] In the embodiments of this application, the same reference numerals denote the same components, and for the sake of brevity, detailed descriptions of the same components are omitted in different embodiments. It should be understood that the thickness, length, width, and other dimensions of various components in the embodiments of this application shown in the accompanying drawings, as well as the overall thickness, length, width, and other dimensions of the integrated device, are merely illustrative and should not constitute any limitation on this application.

[0027] In this application, "multiple" means two or more (including two).

[0028] Figure 1 This is a schematic diagram of the frame structure in a crib provided in some embodiments of this application. Figure 2 This is a schematic diagram of the frame structure in a crib provided in some embodiments of this application. Figure 3 for Figure 1 A magnified structural diagram of A in the diagram. Figure 4 Schematic cross-sectional view of the frame structure in a crib provided in some embodiments of this application Figure 1 . Figure 5 for Figure 4 A schematic diagram of an enlarged structure of B. Figure 6 for Figure 4 A magnified structural diagram of C. Figure 3 and Figure 5 This is a structural diagram of the first connector 10 and the first sub-connector (i.e., the base 40). Figure 6 This is a structural diagram of the first connecting member 10 and the second sub-connecting member (i.e., wheel seat 50).

[0029] Please refer to the following: Figures 1 to 6 According to some embodiments of this application, this application provides a crib, which includes a frame structure 100, the frame structure 100 including a plurality of connectors and a plurality of rods. The plurality of connectors includes a first connector 10, which includes a first connecting space 10a and a second connecting space 10b spaced apart. The inner wall of the first connecting space 10a is provided with a positioning part 11, which protrudes relative to the inner wall of the first connecting space 10a. The plurality of rods are connected by the plurality of connectors and enclose a load-bearing space. The plurality of rods includes a first rod 20 and a second rod 30. The first end 21 of the first rod 20 is disposed in the first connecting space 10a, and the first end 21 is provided with a positioning groove 22, at least a portion of the positioning part 11 being embedded in the positioning groove 22. The second end 31 of the second rod 30 is disposed in the second connecting space 10b, and the second rod 30 is pivotally connected to the first connector 10. The distance between the pivot 12 of the second member 30 and the first connector 10 and the end face of the second end 31 is d. The minimum distance between the inner wall of the second connecting space 10b opposite to the end face of the second end 31 and the pivot 12 is D. d and D satisfy the relationship 0.2D≤d≤0.5D.

[0030] The crib may include a frame structure 100 and other components, such as... Figure 11 As shown, the frame structure 100 supports a drape, a mattress on the drape, and components for connecting and securing the drape and the frame structure.

[0031] In some examples, the frame structure 100 may have an unfolded state. The unfolded state is the state in which the crib is used normally. Of course, the frame structure 100 may also have a folded state, which is for the convenience of transporting or storing the crib. The folded state can have a much smaller volume than the unfolded state.

[0032] The frame structure 100 may include multiple members. These members are joined together to form a load-bearing space. This load-bearing space is used to house the mattress 300 (see details). Figure 11 The carrying space can also be used to provide a resting and play area for infants. Optionally, multiple rods can be connected together via connectors. Optionally, some of the connectors can be fixedly connected to the rods only, while others can be pivotally connected to the rods only. Of course, a connector can also be both fixedly connected to one rod and pivotally connected to another rod. Here, "pivotally connected" refers to a connector having a first pivot 15 (see details). Figure 3 The end of the rod is fixedly connected to the first pivot 15 so that the rod rotates around the first pivot 15, thereby realizing the folded state of the frame structure 100.

[0033] For example, the load-bearing space is a cuboid space, meaning that both the upper and lower parts of the cuboid space are rectangular. The cuboid space has an opening on one side. The members include a plurality of first connecting rods 1 located on the upper part of the frame structure 100. The plurality of first connecting rods 1 are connected end to end by connectors to form the upper part of the cuboid space and enclose the opening (the opening is rectangular). The members also include a plurality of second connecting rods 2 located at the bottom of the frame structure 100 (i.e., the side away from the opening). The plurality of second connecting rods 2 are connected by connectors to form the bottom of the cuboid space and are rectangular. The members also include a plurality of third connecting rods 3 connecting the first connecting rods 1 and the second connecting rods 2. The plurality of third connecting rods 3 connect at least the four corners of the rectangular opening and the four corners of the bottom of the cuboid space. It is understandable that the bottom of the cuboid space can be a rectangle formed by connecting multiple second links 2 end to end through connectors, or it can be an "X" shape formed by connecting multiple second links 2 through connectors, with the four ends of the "X" shape being the four corners of the bottom of the cuboid space. Furthermore, the bottom of the cuboid space can also have horizontal (or vertical) links added to the "X" shaped frame to further enhance the support performance of the bottom.

[0034] Optionally, the first link 1 and the third link 3 can be fixedly connected by a connector, or the first link 1 and the third link 3 can be pivotally connected by a connector.

[0035] Optionally, the second link 2 and the third link 3 can be fixedly connected by a connector, or the second link 2 and the third link 3 can be pivotally connected by a connector.

[0036] Multiple first links 1 can be connected to each other via connectors. Optionally, one side edge of the opening can be formed by two or more first links 1, which can be pivotally connected via connectors so that the edge of the opening can be folded.

[0037] Optionally, the first member 20 can be a first link 1, and the second member 30 can be a third link 3. The first connector 10 can be a connector between the first link 1 and the third link 3.

[0038] Optionally, the first member 20 can be the second link 2, and the second member 30 can be the third link 3. The first connector 10 can be a connector between the second link 2 and the third link 3.

[0039] Optionally, the first member 20 can be the third link 3. The second member 30 can be the first link 1 and / or the second link 2. The first connector 10 can be a connector between the first link 1 and the third link 3 and / or a connector between the second link 2 and the third link 3.

[0040] Optionally, the first connecting space 10a and the second connecting space 10b can be two independent spaces, or they can be interconnected spaces.

[0041] Optionally, when the first member 20 is the first link 1 and the second member 30 is the third link 3, that is, the first connector 10 is located in the upper part of the bearing space (close to the opening), the second connecting space 10b can be located on the side of the first connecting space 10a facing the bottom of the bearing space.

[0042] Optionally, when the first member 20 is the second link 2 and the second member 30 is the third link 3, that is, the first connecting member 10 is located at the bottom of the bearing space (away from the opening), the second connecting space 10b can be located on the side of the first connecting space 10a facing the opening of the bearing space.

[0043] Optionally, the first connecting space 10a can be a space with an opening (e.g., a first opening), and the first end 21 of the first rod 20 extends into the first connecting space 10a through the first opening. Optionally, the first rod 20 is fixedly connected to the first connector 10, for example, the first end 21 of the first rod 20 is fixedly connected to the first connector 10 by means of interference fit, shaft hole connection, etc. The shape of the first connecting space 10a can match the shape of the first end 21 of the first rod 20, for example, the shape of the first connecting space 10a is a cylindrical groove.

[0044] Optionally, the inner wall of the first connecting space 10a may include a first side wall and a first bottom wall. The positioning part 11 may protrude relative to the first side wall, and the positioning part 11 may also protrude relative to the first bottom wall. Optionally, the number of positioning parts 11 may include multiple positioning parts, and the multiple positioning parts 11 may be spaced apart. For example, the multiple positioning parts 11 may be spaced apart on the first side wall; or, the multiple positioning parts 11 may be spaced apart on the first bottom wall; or, a portion of the multiple positioning parts 11 may be located on the first side wall, and another portion of the multiple positioning parts 11 may be located on the first bottom wall.

[0045] Optionally, the positioning groove 22 may be formed by recessing the end face (i.e., the first end face 23) of the first end 21, or the positioning groove 22 may be formed by recessing the peripheral side of the first end 21.

[0046] Optionally, the number of positioning slots 22 can be matched with the number of positioning parts 11. For example, the number of positioning slots 22 is the same as the number of positioning parts 11, and at least a portion of one positioning part 11 is embedded in one positioning slot 22. Of course, the number of positioning slots 22 can also be less than the number of positioning parts 11, and at least a portion of multiple positioning parts 11 can be embedded in one positioning slot 22.

[0047] In some examples, a portion of the positioning part 11 is embedded in the positioning groove 22. In other examples, the entire structure of the positioning part 11 is embedded in the positioning groove 22.

[0048] In the above embodiment, the cooperation between the positioning part 11 and the positioning groove 22 can constrain the radial direction of the first rod 20, reduce the rotation of the first rod 20 around its own axis, thereby reducing the possibility of the frame structure 100 swaying and improving the stability of the frame structure 100.

[0049] Optionally, the second connecting space 10b can be a space with an opening (e.g., a second opening), and the second end 31 of the second rod 30 extends into the second connecting space 10b through the second opening. Optionally, the second rod 30 is pivotally connected to the first connector 10, and the pivot 12 between the second rod 30 and the first connector 10 can be located in the second connecting space 10b or outside the second connecting space 10b.

[0050] When the second rod 30 rotates relative to the first connecting member 10, the second rod 30 can move closer to or further away from the first rod 20. When the second rod 30 is closer to the first rod 20, the frame structure 100 can be folded to facilitate the storage and transport of the crib. When the second rod 30 is further away from the first rod 20, the frame structure 100 can be unfolded to facilitate user use of the crib.

[0051] like Figure 3As shown, the pivot point 12 between the second rod 30 and the first connector 10 refers to the pivot point where the second rod 30 can rotate relative to the first connector 10. For example, both the second connecting space 10b in the second rod 30 and the first connector 10 are provided with connecting holes, and the first pivot 15 passes through the connecting holes of the second connecting space 10b and the second rod 30 respectively to pivotally connect the second rod 30 and the first connector 10. Optionally, the second rod 30 may include a first segment and a second segment connected together, the first segment and the second segment being separated by the pivot point 12, and the rotation direction of the first segment being opposite to the rotation direction of the second segment. The area between the end face of the second end 31 of the second rod 30 and the pivot point 12 is the first segment, that is, the distance between the pivot point 12 of the second rod 30 and the end face of the second end 31 (i.e., the first distance) is the length of the first segment, and the area between the pivot point 12 and the end face away from the second end 31 in the second rod 30 is the second segment. The end face of the first segment is also the end face of the second end 31, hereinafter referred to as the second end face 32. The inner wall of the second connecting space 10b opposite to the end face of the second end 31 refers to the wall surface in the inner wall of the second connecting space 10b that is opposite to the second end face 32 during the rotation of the first segment. The minimum distance between this wall surface and the pivot joint 12 refers to the distance between the wall surface in the inner wall of the second connecting space 10b that is closest to the second end face 32 and the pivot joint 12 during the rotation of the first segment. By setting the relationship between d and D to 0.2D≤d, it is beneficial to improve the strength of the first segment and reduce the possibility of damage or even breakage of the second end 31 of the second rod 30 when axial transmission occurs between the first pivot 15 and the second rod 30. By setting the relationship between d and D to d≤0.5D, it is beneficial to reduce the possibility of interference between the first segment and the inner wall of the second connecting space 10b and reduce the manufacturing accuracy of the second rod 30 and the pivot joint 12 in the first connector 10.

[0052] Optionally, d can be 0.2D, 0.3D, 0.4D or 0.5D.

[0053] In the crib provided in this application embodiment, by setting the positioning groove 22 and the positioning part 11, the positioning part 11 can play a supporting role, which helps to disperse the impact force on the connection between the first rod 20 and the first connector 10, reduce the possibility of shear stress concentration at the connection between the first rod 20 and the first connector 10, and improve the connection reliability between the first rod 20 and the first connector 10; by satisfying the relationship between d and D as: 0.2D≤d≤0.5D, it helps to reduce the possibility of interference between the second rod 30 and the structure in the second connection space 10b during rotation, reduce the manufacturing precision of the second rod 30 and the first connector 10, improve the smoothness of operation, reduce the possibility of wear and abnormal noise between the second rod 30 and the first connector 10, and improve the user experience.

[0054] Figure 8 This is a structural diagram of the first connecting member 10 and the second sub-connecting member (i.e., wheel seat 50). Figure 9 This is a structural diagram of the first connector 10 and the first sub-connector (i.e., the base 40).

[0055] Figure 7 Schematic cross-sectional view of the frame structure in a crib provided in some embodiments of this application Figure 2 . Figure 8 for Figure 7 A magnified structural diagram of E in the middle. Figure 9 for Figure 7 A magnified structural diagram of F in the middle.

[0056] In some alternative embodiments, please refer to Figures 5 to 9 The first connector 10 includes a first wall portion 13, which encloses and forms the sidewall of the first connecting space 10a. The first wall portion 13 also includes a first fixing hole K1 penetrating through itself, which is used to fix the first rod 20. The positioning portion 11 and the first fixing hole K1 are located on the same side of the first wall portion 13 along a first direction, which intersects with the recessed direction of the first connecting space 10a.

[0057] Optionally, the sidewall of the first connecting space 10a can be cylindrical, and the first wall portion 13 can be enclosed to form the sidewall of the first connecting space 10a.

[0058] Optionally, at least a portion of the first wall portion 13 may separate the first connecting space 10a and the second connecting space 10b.

[0059] For example, the first fixing hole K1 connects the first connecting space 10a to the outside, allowing fixing structures such as pins, shafts, and bolts to pass through the first fixing hole K1 and fix the first rod 20. Optionally, the number of first fixing holes K1 may include one or more. When the number of first fixing holes K1 includes multiple holes, the multiple first fixing holes K1 may be spaced apart around the sidewall of the first connecting space 10a. Further, the multiple first fixing holes K1 may be arranged opposite each other in pairs.

[0060] Optionally, the fixed connection structure can pass through the first fixing hole K1 to fix the first rod 20 and the first wall portion 13. Further, the first rod 20 can be provided with a second fixing hole K2, which is coaxially arranged with the first fixing hole K1, and the fixed connection structure passes through the first fixing hole K1 and the second fixing hole K2 in sequence to fix the first rod 20 and the first wall portion 13.

[0061] The first connecting space 10a is formed by a recess on one side of the first connector 10, and the recess direction of the first connecting space 10a intersects (or is perpendicular to) the first direction.

[0062] In the above embodiment, along the first direction, the positioning part 11 and the first fixing hole K1 are disposed on the same side of the first wall part 13. This means that the positioning part 11 and the first fixing hole K1 are located on the same side wall of the first connecting space 10a, and the first fixing hole K1 and the positioning part 11 are arranged sequentially along the concave direction of the first connecting space 10a. This allows the first fixing hole K1 and the positioning part 11 to simultaneously bear the shear stress of the first rod 20 on both of them, further reducing the possibility of connection failure caused by shear stress concentration in the fixed connection structure passing through the first fixing hole K1. At the same time, the fact that the first fixing hole K1 and the positioning part 11 are on the same side can also improve the positioning accuracy of the first rod 20, reduce the possibility of misalignment between the second fixing hole K2 and the first fixing hole K1 due to manufacturing tolerances, and reduce the installation difficulty.

[0063] Figure 10 for Figure 4 Another enlarged structural diagram of B.

[0064] In some alternative embodiments, please refer to Figure 10 Along the first direction and on the same projection plane, the projected area of ​​the first fixing hole K1 is smaller than the projected area of ​​the positioning part 11.

[0065] For example, the first projection plane is a plane perpendicular to the first direction. The projected area of ​​the first fixing hole K1 on the first projection plane is smaller than the projected area of ​​the positioning part 11 on the first projection plane, so that the positioning part 11 can further disperse the shear stress between the first fixing hole K1 (and / or the second fixing hole K2) and the fixed connection structure, improve the impact resistance of the first member 20, and improve the stability of the frame structure 100.

[0066] Optionally, please refer to the following as well. Figure 9 and Figure 10 The diameter of the projection of the first fixing hole K1 on the first projection plane can be smaller than the size of the projection of the positioning part 11 on the first projection plane along a third direction, and the third direction is parallel to the radial direction of the first fixing hole on the first projection plane.

[0067] In some alternative embodiments, please continue to refer to Figure 5 The first connector 10 includes a first wall portion 13 and a second wall portion 14. The second wall portion 14 is located at least on the side of the second rod 30 facing away from the bearing space. The first wall portion 13 and the second wall portion 14 enclose and form a second connecting space 10b. A limiting portion 14a is formed at the end of the second wall portion 14 away from the first wall portion 13. The limiting portion 14a abuts against the second rod 30.

[0068] Optionally, the wall surface of the first wall portion 13 facing away from the first connecting space 10a and the second wall portion 14 enclose the second connecting space 10b.

[0069] Optionally, the second wall portion 14 may be located only on the side of the second rod 30 away from the bearing space. The end of the second wall portion 14 away from the first wall portion 13 forms a limiting portion 14a. The limiting portion 14a can limit the rotation range of the second rod 30 and reduce the possibility of deformation of the bearing space caused by the rotation of the second rod 30 to the side away from the bearing space. Of course, the second wall portion 14 may also include a first sub-portion 141 and a second sub-portion 142. The first sub-portion 141 is located on the side of the second rod 30 facing away from the bearing space. There are two second sub-portions 142, which are arranged opposite each other and are respectively connected to the first sub-portion 141. The two second sub-portions 142, one first sub-portion 141, and the first wall portion 13 together enclose the second connecting space 10b. The side of the two second sub-portions 142 facing away from the first sub-portion 141 and the side of the two second sub-portions 142 facing away from the first wall portion 13 together form an opening (i.e., the second opening mentioned above). The second rod 30 can rotate in the opening. The two second sub-portions 142 can constrain the second rod 30 and reduce the possibility of the second rod 30 swaying.

[0070] Optionally, the distance between the inner wall surface of the first sub-part 141 opposite to the second end face 32 and the pivot 12 can be the minimum distance D. That is, during the rotation of the first segment, when the first segment rotates to the point where the second end face 32 is opposite to the inner wall surface of the first sub-part 141, the distance between the area of ​​the inner wall surface of the first sub-part 141 opposite to the second end face 32 and the pivot 12 is the minimum distance D.

[0071] Optionally, the distance between the area of ​​the surface of the first wall portion 13 facing away from the first connecting space 10a and the area opposite to the second end face 32 and the pivot point 12 can be the minimum distance D. That is, during the rotation of the first segment, when the first segment rotates to the point where the second end face 32 is opposite to the surface of the first wall portion 13 facing away from the first connecting space 10a, the distance between the area of ​​the surface of the first wall portion 13 facing away from the first connecting space 10a and the area opposite to the second end face 32 and the pivot point 12 is the minimum distance D.

[0072] For example, when the first connector 10 is disposed at the bottom of the bearing space, when the second end face 32 is opposite to the surface of the first wall portion 13 on the side away from the first connecting space 10a, the second section of the second rod 30 can abut against the limiting portion 14a, at which time the crib is in the unfolded state.

[0073] For example, when the first connector 10 is disposed at the bottom of the bearing space, when the second end face 32 is opposite to the first sub-part 141, the second section of the second rod 30 can abut against the first wall part 13. At this time, the crib is in a folded state, and the first wall part 13 can play abutting role in the folded state, thereby simplifying the overall structure of the first connector 10.

[0074] In these alternative embodiments, by using the first wall portion 13 and the second wall portion 14 to enclose and form the second connecting space 10b, it is beneficial to improve the structural integration of the first connector 10 and reduce the redundant settings of the internal structure of the first connector 10; by providing the limiting portion 14a to constrain the second rod 30, the stability of the crib in the unfolded state is improved.

[0075] In some alternative embodiments, please continue to refer to Figure 5 Along the direction away from the first wall portion 13, the second wall portion 14 tends to approach the second member 30.

[0076] For example, the further the inner wall of the second wall portion 14 is from the first wall portion 13, the greater the distance between it and the second rod 30, the larger the rotation radius of the first segment of the second rod 30, and the larger the reserved size of the first segment of the second rod 30, thereby improving the structural strength of the pivot joint 12 of the second rod 30; the further the inner wall of the second wall portion 14 is from the first wall portion 13, the closer it is to the second rod 30, so that the end of the second wall portion 14 away from the first wall portion 13 can form a limiting portion 14a, thereby simplifying the overall structure of the second wall portion 14.

[0077] Optionally, in the direction away from the first wall portion 13, the first sub-portion 141 tends to approach the second member 30.

[0078] Optionally, the distance between the two second sub-parts 142 and the second rod 30 is the same along the direction away from the first wall 13.

[0079] Figure 11 This is a schematic diagram of the structure of a crib provided for some embodiments of this application. Figure 12 This is a bottom view of a crib provided in some embodiments of this application. Figure 13 for Figure 12 A magnified structural diagram of H in the middle.

[0080] In some alternative embodiments, please refer to the following: Figure 1 , Figures 11 to 13 The crib also includes a crib girder 200 and a mattress 300. The crib girder 200 is connected to the frame structure 100 and at least covers the bottom of the support space, and the crib girder 200 has a connecting through hole. The mattress 300 includes a main body 310 and a connecting part 320 connected together, and the connecting part 320 passes through the connecting through hole and is fixedly connected to a rod that encloses the bottom of the support space.

[0081] Optionally, the drape 200 can be threaded onto the rods to connect the frame structure 100.

[0082] Optionally, the enclosure 200 may only cover the bottom of the bearing space to form the bottom wall of the bearing space. Of course, the enclosure 200 may also include a bottom enclosure and side enclosures, with the bottom enclosure covering the bottom of the bearing space to form the bottom wall of the bearing space; and the side enclosures covering the sides of the bearing space to form the side walls of the bearing space.

[0083] Optionally, the bottom lining fabric 200 is provided with connecting through holes.

[0084] Optionally, the number of connection vias may include one or more.

[0085] For example, the mattress 300 includes a main body 310 and a connecting part 320 connected together. The main body 310 may be disposed on the side of the surrounding fabric 200 (such as the bottom surrounding fabric) facing into the bearing space, and the main body 310 may serve as a cushion and support. The main body 310 may cover the surrounding fabric 200.

[0086] Optionally, the connecting part 320 can be a strip structure.

[0087] Optionally, the connecting portion 320 can pass through the connecting through hole and surround the rod (second connecting rod) forming the bottom of the bearing space. For example, the end of the connecting portion 320 away from the main body 310 can surround the rod (second connecting rod) forming the bottom of the bearing space one or more times and then be fixed to the end of the connecting portion 320 near the main body 310. Of course, the end of the connecting portion 320 away from the main body 310 can also be fixed to the rod forming the bottom of the bearing space.

[0088] The embodiments of this application, through the above-described settings, help to reduce the possibility of the mattress 300 shifting, improve the user experience, and reduce the interaction force between the mattress 300 and the surrounding fabric 200, thereby reducing the possibility of the surrounding fabric 200 (and / or the mattress 300) being torn due to pulling, and improving service life.

[0089] In some alternative embodiments, please refer to the following: Figure 1 , Figures 11 to 13 At least a portion of the rods forming the bottom of the bearing space is a first rod 20. The first rod 20 is provided with a slot 24, and the end of the connecting portion 320 away from the main body portion 310 is connected to the slot 24. The slot 24 is provided on the side of the first rod 20 facing away from the bearing space.

[0090] Optionally, the plurality of first members 20 may be arranged to enclose a portion of the bottom of the bearing space; or, the plurality of first members 20 may be arranged to enclose the bottom of the bearing space.

[0091] Optionally, the slot 24 may include a recessed space and a first connecting structure 241 disposed within the recessed space. The first connecting structure 241 may include a male buckle.

[0092] The end of the connecting portion 320 away from the main body 310 may be provided with a second connecting structure 321, such as a female buckle, that is adapted to the first connecting structure 241. The end of the connecting portion 320 away from the main body 310 is connected to the slot 24 so that the connecting portion 320 is fixed to the first rod 20, while the mattress 300 is flattened so that the mattress 300 is in a preset position.

[0093] The slot 24 is located on the side of the first rod 20 facing away from the bearing space. In other words, the slot 24 is located on the side of the first rod 20 facing away from the main body 310. The connecting part 320 needs to extend along the circumference of the first rod 20 to the side of the first rod 20 facing away from the bearing space, and then connect the end of the connecting part 320 with the slot 24, so that the connecting part 320 and the first rod 20 are in circumferential contact, dispersing the external force on the end of the connecting part 320 and the slot 24, and improving the connection reliability between the mattress 300 and the first rod 20.

[0094] In some alternative embodiments, please refer to Figure 7 The ratio of the distance between the slot 24 and the end face of the first end 21 to the extension length of the first rod 20 is in the range of 0.1 to 0.3.

[0095] For example, the distance between the slot 24 and the first end face 23 is L1, and the extension length of the first rod 20 can be L2. The ratio of L1 to L2 is in the range of 0.1L2≤L1≤0.3L2. Specifically, the ratio of the distance between the slot 24 and the first end face 23 to the extension length of the first rod 20 can be 0.1, 0.2, or 0.3.

[0096] In the above embodiments, by setting the ratio of the distance between the slot 24 and the first end face 23 to the extension length of the first rod 20 to be greater than or equal to 0.1, it is beneficial to increase the distance between the slot 24 and the first end face 23, and reduce the possibility that the strength of the first end 21 will decrease due to the excessive number of structures such as the slot 24, the positioning groove 22, and the second fixing hole K2. By setting the ratio of the distance between the slot 24 and the first end face 23 to the extension length of the first rod 20 to be less than or equal to 0.3, it is beneficial to shorten the distance between the connecting part 320 and the edge of the main body 310, thereby flattening the edge of the main body 310, further increasing the flatness of the mattress 300, and reducing the possibility of the mattress 300 locally arching.

[0097] In some alternative embodiments, please refer to Figures 1 to 6The frame structure 100 includes a base 40 disposed at the bottom of the bearing space, and the first connector 10 includes a first sub-connector, which is the base 40; and / or, the frame structure 100 includes a wheel seat 50 disposed at the bottom of the bearing space, and the first connector 10 includes a second sub-connector, which is the wheel seat 50.

[0098] In some examples, such as Figure 3 and Figure 5 As shown, the first connector 10 includes a first sub-connector, which is a base 40. In other examples, such as Figure 6 As shown, the first connector 10 includes a second sub-connector, which is a wheel seat 50. In some other examples, the first connector 10 includes a first sub-connector and a second sub-connector, where the first sub-connector is a base 40 and the second sub-connector is a wheel seat 50.

[0099] For example, the base 40 can be used to support the frame structure 100 so that the frame structure 100 can be placed on the ground.

[0100] For example, the wheel seat 50 may have built-in rotating wheels, which enable the crib to move and make it easy for the user to push the crib.

[0101] In the above embodiments, by integrating the first sub-connector with the base 40 (and / or wheel seat 50) into a single structure, it is beneficial to reduce the number of parts, reduce assembly complexity, and at the same time improve the applicability and functionality of the crib.

[0102] Figure 14 This is a schematic diagram of the structure of a crib base 60 that moves along a first direction under the action of an external force, according to some embodiments of this application.

[0103] Figure 14 This is a schematic diagram of the structure of a crib's folding base moving along a first direction under the action of an external force, as provided in some embodiments of this application. Figure 15 for Figure 4 A magnified structural diagram of K. Figure 16 This is a partial top view of a crib provided in some embodiments of this application.

[0104] In some alternative embodiments, please refer to Figure 4 , Figure 7 , Figures 14 to 16 The frame structure 100 also includes a collapsible base 60, which is located at the bottom of the bearing space and is movable along a second direction Z, which is parallel to the opening direction of the bearing space. When the first member 20 is the second connecting rod 2, the end of the first member 20 away from the first connecting member 10 is pivotally connected to the collapsible base 60.

[0105] The opening direction of the carrying space refers to the opening of the carrying space used to place the baby (usually facing upwards), and the second direction Z is the horizontal direction parallel to this opening.

[0106] The first rod 20, at its end away from the first connector 10, is pivotally connected to the retractable base 60. In other words, the first rod 20 has a first end 21 and a third end. The first end 21 is fixedly connected to the first connector 10 via a connecting groove. The third end and the retractable base 60 are connected via a second pivot 61, allowing the first rod 20 to rotate around the second pivot 61. Optionally, the first rod 20, at its end away from the first connector 10, has a pivot hole 25. The retractable base 60 contains a second pivot 61, and the first rod 20 is connected to the second pivot 61 in the retractable base 60 via the pivot hole 25. The second pivot 61 and the retractable base 60 can be an integral structure; alternatively, the second pivot 61 and the retractable base 60 can be separate components.

[0107] For example, the crib includes a folded state and an unfolded state. When the crib is in the unfolded state, the folding base 60 is located at the bottom of the support space, and the angle between the line connecting the folding base 60 and the first connecting member 10 and the opening direction of the support space is a first preset angle. When the crib changes from the unfolded state to the folded state, the folding base 60 can be lifted along the second direction Z to move the folding base 60 towards the opening direction of the support space, causing relative rotation between the folding base 60 and the third end of the first rod 20. Due to the fixed connection between the first end 21 of the first rod 20 and the first connecting member 10, the first end 21 and the first connecting member 10 rotate relative to the folding base 60, so that the angle between the line connecting the folding base 60 and the first connecting member 10 and the opening direction of the support space is a second preset angle. Optionally, the first preset angle can be 90°. The second preset angle can be 0°.

[0108] Optionally, the folding base 60 can be positioned at the center of the bottom of the support space.

[0109] Optionally, the second direction Z can pass through the centroid of the carrying space. The centroid refers to the geometric center of the overall carrying space.

[0110] In these alternative embodiments, by providing a collapsible base 60, it is beneficial to reduce the volume of the frame structure 100 and improve the convenience of storing and transporting the crib.

[0111] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0112] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features. However, these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A crib, characterized in that, Includes a frame structure, the frame structure comprising: Multiple connectors, including a first connector, the first connector including a first connection space and a second connection space space spaced apart, the inner wall of the first connection space is provided with a positioning part, the positioning part protruding relative to the inner wall of the first connection space; Multiple rods are connected and enclosed by multiple connectors to form a load-bearing space. The multiple rods include a first rod and a second rod. The first end of the first rod is disposed in the first connecting space and has a positioning groove. At least part of the positioning part is embedded in the positioning groove. The second end of the second rod is disposed in the second connecting space. The second rod is pivotally connected to the first connector. The distance between the pivot point of the second rod and the first connector and the end face of the second end is d. The minimum distance between the inner wall of the second connecting space opposite to the end face of the second end and the pivot point is D. d and D satisfy the relationship: 0.2D≤d≤0.5D.

2. The crib according to claim 1, characterized in that, The first connector includes a first wall portion, which encloses and forms a sidewall of the first connection space. The first wall portion also includes a first fixing hole that penetrates itself, which is used to fix the first rod. Wherein, along the first direction, the positioning part and the first fixing hole are disposed on the same side of the first wall portion, and the first direction intersects with the recessed direction of the first connecting space.

3. The crib according to claim 2, characterized in that, Along the first direction and on the same projection plane, the projected area of ​​the first fixing hole is smaller than the projected area of ​​the positioning part.

4. The crib according to any one of claims 1 to 3, characterized in that, The first connector includes a first wall portion and a second wall portion. The second wall portion is located at least on the side of the second rod member facing away from the bearing space. The first wall portion and the second wall portion enclose the second connecting space. A limiting portion is formed at the end of the second wall portion away from the first wall portion. The limiting portion abuts against the second rod member.

5. The crib according to claim 4, characterized in that, Along the direction away from the first wall portion, the second wall portion tends to move closer to the second rod.

6. The crib according to any one of claims 1 to 3, characterized in that, The crib also includes: A drape, connecting the frame structure and at least covering the bottom of the load-bearing space, the drape having connecting through holes; A mattress includes a main body and a connecting part connected together, the connecting part being fixedly connected through the connecting through hole to a rod that encloses the bottom forming the load-bearing space.

7. The crib according to claim 6, characterized in that, At least a portion of the rods forming the bottom of the bearing space is the first rod, the first rod is provided with a slot, and the end of the connecting portion away from the main body is connected to the slot; The slot is located on the side of the first rod facing away from the bearing space.

8. The crib according to claim 7, characterized in that, The ratio of the distance between the slot and the end face of the first end to the extension length of the first rod is in the range of 0.1 to 0.

3.

9. The crib according to any one of claims 1 to 3, characterized in that, The frame structure includes a base disposed at the bottom of the bearing space, and the first connector includes a first sub-connector, which is the base; and / or, the frame structure includes a wheel seat disposed at the bottom of the bearing space, and the first connector includes a second sub-connector, which is the wheel seat.

10. The crib according to any one of claims 1 to 3, characterized in that, The frame structure also includes a collapsible base, which is located at the bottom of the bearing space and is movably disposed along a second direction. One side of the bearing space has an opening, and the second direction is parallel to the opening direction of the bearing space. The end of the first rod furthest from the first connector is pivotally connected to the folding base.

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