Base structure and children's bed

Abstract

The base structure comprises a connecting support, a bottom rod set and a bed back set, and the connecting support comprises an upper support body and a lower support body connected to the upper support body in a sliding mode; the bottom rod groups are arranged at intervals along the peripheral side of the connecting support, and each bottom rod group comprises an upper bottom rod and a synchronous rod; each bed leg group comprises a leg sleeve and a leg rod inserted into the leg sleeve; wherein one end of the upper bottom rod is hinged to the peripheral side of the top of the upper support, and the other end of the upper bottom rod is hinged to the leg sleeve; at least one bottom rod set further comprises a lower bottom rod, one end of the lower bottom rod is hinged to the leg sleeve, and the other end of the lower bottom rod is hinged to the upper support. One end of the synchronous rod is hinged to the peripheral side of the bottom of the lower support, and the other end of the synchronous rod is hinged to the end, close to the upper support, of the upper bottom rod. Through the arrangement, mounting operation of assembling personnel during assembling can be facilitated; and the storage fluency of the children's bed is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of children's beds, in particular to a base structure and a children's bed. BACKGROUND

[0002] A children's bed provides a space for a child to sleep or play, and the children's bed can be folded for storage, thereby improving the convenience of the children's bed. In the base structure of some children's beds, the middle seat includes an upper support and a lower support, and an upper bottom rod and a lower bottom rod are hingedly connected to the upper support. When the children's bed is stored, the lower support slides relative to the upper support to achieve storage. However, the deformation of the base structure is not flexible during actual operation, which is not conducive to the smooth storage of the children's bed. In addition, the design structure requires many parts, and the assembly workload is large.

[0003] Therefore, it is necessary to improve the prior art. CONTENT OF THE UTILITY MODEL

[0004] The present application aims to at least solve one of the technical problems existing in the prior art, and provides a base structure and a children's bed.

[0005] According to an aspect of the present application, a base structure is provided, which includes a connecting support, a bottom rod group, and a bed leg group. The connecting support includes an upper support and a lower support connected to the upper support. The bottom rod group is arranged along the periphery of the connecting support and includes an upper bottom rod and a synchronous rod. The bed leg group includes a leg sleeve and a leg rod connected to the leg sleeve. The upper end of the upper bottom rod is hingedly connected to the top periphery of the upper support, and the lower end is hingedly connected to the leg sleeve. At least one of the bottom rod groups further includes a lower bottom rod, one end of which is hingedly connected to the leg sleeve, and the other end is hingedly connected to the upper support. One end of the synchronous rod is hingedly connected to the bottom periphery of the lower support, and the other end is hingedly connected to one end of the upper bottom rod close to the upper support.

[0006] In one embodiment, in the unfolded state, in the same bottom rod group, the hinged point of the lower bottom rod to the upper support is denoted as point G1, the hinged point of the upper bottom rod to the upper support is denoted as point G2, the hinged point of the lower bottom rod to the leg sleeve is denoted as point G3, and the hinged point of the upper bottom rod to the leg sleeve is denoted as point G4. In the horizontal direction, point G1 is located on one side of point G2 close to the middle of the upper support, and point G3 is located on one side of point G4 away from the leg rod. Alternatively, in the horizontal direction, point G1 is located on one side of point G2 away from the middle of the upper support, and point G3 is located on one side of point G4 close to the leg rod.

[0007] In one embodiment, in the half-folded state, the leg rod is arranged at an angle to the vertical direction, and the distance between the bottoms of two adjacent leg rods is less than the distance between the tops of the two adjacent leg rods.

[0008] In one embodiment, in the unfolded state, the central axes of two non-adjacent upper bottom rods coincide; the four upper bottom rods divide the bottom of the child bed into two first regions and two second regions, the first regions are adjacent to the second regions, and the included angle between the two upper bottom rods forming the first regions is smaller than the included angle between the two upper bottom rods forming the second regions; the number of the synchronization rods in each bottom rod group is one, the synchronization rod is located in the second region, and the synchronization rod is connected to the surface of the upper bottom rod near the second region.

[0009] In one embodiment, the lower bottom rod is arranged in two groups of bottom rod groups, and the lower bottom rod is arranged in two non-adjacent groups of bottom rod groups.

[0010] In one embodiment, in the unfolded state, the central axes of two non-adjacent upper bottom rods coincide; the four upper bottom rods divide the bottom of the child bed into two first regions and two second regions, the first regions are adjacent to the second regions, and the included angle between the two upper bottom rods forming the first regions is smaller than the included angle between the two upper bottom rods forming the second regions; the number of the synchronization rods in each bottom rod group is one, the synchronization rod is located in the second region, and the synchronization rod is connected to the surface of the upper bottom rod near the second region, so that the two synchronization rods are arranged in a staggered manner.

[0011] In one embodiment, in the unfolded state, the upper bottom rod is arranged in a substantially horizontal manner; in the same bottom rod group, the distance between the upper bottom rod and the lower bottom rod in the vertical direction gradually increases from the leg sleeve to the connecting support.

[0012] In one embodiment, the upper support includes a hinged part and a sliding part, the sliding part is arranged at the bottom of the hinged part; the lower support is sleeved on the sliding part, and the hinged part is used for hinging with the upper bottom rod and the lower bottom rod.

[0013] In one embodiment, the locking structure is arranged between the upper support and the lower support, the locking structure includes a driving block, a locking block, and a driving rod; the sliding part is provided with a receiving groove, the driving block is slidably arranged in the receiving groove, and the groove wall of the receiving groove is provided with a avoiding opening; the locking block is rotationally arranged at the groove bottom of the receiving groove, and the surface of the locking block is provided with a driving hole; one end of the driving rod is fixed to the driving block near the locking block, and the driving rod penetrates the driving hole; when the driving block drives the driving rod to slide in the receiving cavity, the driving rod drives the locking block to rotate through the driving hole, so that the locking block can selectively enter and exit the avoiding opening.

[0014] According to another aspect of the present application, there is provided a child bed comprising the base structure of any one of the preceding, the child bed further comprising a foldable surrounding rod arranged on top of the leg rod.

[0015] The beneficial effects of the present application are: by hingedly connecting one end of the synchronous rod to the upper bottom rod and the other end to the bottom of the lower support, and hingedly connecting the upper bottom rod to the top of the upper support, the distance between the two hinged points of the synchronous rod in the vertical direction is larger, that is, the installation space and design length of the synchronous rod will be larger, which can facilitate the installation operation of the assembler during assembly; the synchronous rod can more conveniently drive the lower support, so that the lower support and the upper support move in opposite directions more smoothly, improving the smoothness of the child bed storage, effectively improving the efficiency of the child bed storage; and the driving force required by the longer synchronous rod is smaller during the storage process of the child bed. The lower bottom rod 23 is arranged on only part of the bottom rod group 20, which can reduce production costs, and at the same time, the weight of the child bed as a whole can be reduced, thereby reducing the labor intensity of parents when storing or unfolding the child bed. BRIEF DESCRIPTION OF DRAWINGS

[0016] The technical solutions and other beneficial effects of the present application will become apparent from the following detailed description of the specific embodiments of the present application, combined with the accompanying drawings.

[0017] Figure 1 is a schematic view of a child bed unfolding provided by an embodiment of the present application.

[0018] Figure 2 is Figure 1 is an enlarged view of A in FIG.

[0019] Figure 3 is a schematic view of the principle of synchronous rod connection provided by an embodiment of the present application.

[0020] Figure 4 is Figure 1 is another perspective view.

[0021] Figure 5 is Figure 4 is an enlarged view of B in FIG.

[0022] Figure 6 is Figure 1 is a bottom view of FIG.

[0023] Figure 7 is Figure 6 is an enlarged view of D in FIG.

[0024] Figure 8 is Figure 6 is a partial sectional view of E-E in FIG.

[0025] Figure 9 is a schematic view of the storage process (half folding) of a child bed provided by an embodiment of the present application.

[0026] Figure 10 is a storage completion schematic view of a child bed provided by an embodiment of the present application.

[0027] Figure 11 is a hinge schematic view of the bottom rod group when the child bed is in an unfolded state provided by an embodiment of the present application.

[0028] Figure 12 is a front view of Figure 9 .

[0029] in the figure:

[0030] 10, connecting support; 11, upper support; 111, hinge part; 112, sliding part; 1121, accommodating groove; 1122, avoiding opening; 12, lower support;

[0031] 20, bottom rod group; 21, upper bottom rod; 22, synchronous rod; 23, lower bottom rod;

[0032] 30, bed leg group; 31, leg sleeve; 32, leg rod;

[0033] 40, first area;

[0034] 50, second area;

[0035] 60, locking structure; 61, driving block; 62, locking block; 621, driving hole; 63, driving rod;

[0036] 70, surrounding rod. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0038] In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms “mounting”, “connection”, “connecting” should be understood in a broad sense, for example, can be fixedly connected, or can be detachably connected, or integrally connected; can be mechanically connected, or electrically connected or can communicate with each other; can be directly connected, or indirectly connected through an intermediate medium, can be the internal connection of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0039] The base structure and child bed in the present application will be described in detail below with reference to the drawings and specific embodiments.

[0040] In the prior art, the linkage flexibility between the lower bottom rod, the synchronous rod and the lower support is poor when the children's bed is stored, which is not conducive to the smooth storage of the children's bed.

[0041] To solve the above technical problems, the embodiment of the present application provides a base structure, which comprises a connecting support, a bottom rod group and a bed leg group. The connecting support comprises an upper support and a lower support slidingly connected to the upper support. The bottom rod group is arranged along the circumferential side of the connecting support and comprises an upper bottom rod and a synchronous rod. The bed leg group comprises a leg sleeve and a leg rod inserted into the leg sleeve. One end of the upper bottom rod is hingedly connected to the top circumferential side of the upper support, and the other end is hingedly connected to the leg sleeve. At least one group of the bottom rod group further comprises a lower bottom rod, one end of which is hingedly connected to the leg sleeve, and the other end is hingedly connected to the upper support. One end of the synchronous rod is hingedly connected to the bottom circumferential side of the lower support, and the other end is hingedly connected to one end of the upper bottom rod close to the upper support.

[0042] One end of the synchronous rod is hingedly connected to the upper bottom rod, and the other end is hingedly connected to the bottom of the lower support. The upper bottom rod is hingedly connected to the top of the upper support. In the vertical direction, the distance between the two hinged points of the synchronous rod is large, i.e. the length of the synchronous rod is longer, which can facilitate the installation operation of the assembler during assembly. The synchronous rod can more conveniently drive the lower support, making the movement of the lower support and the upper support in opposite directions more smooth, improving the smoothness of the storage of the children's bed and effectively improving the storage efficiency of the children's bed. Moreover, the driving force required by the longer synchronous rod is smaller during the storage of the children's bed. The details are described below.

[0043] Referring to Figures 1-3 , Figure 9 and Figure 10 , in an embodiment, the base structure comprises a connecting support 10, a bottom rod group 20 and a bed leg group. The connecting support 10 comprises an upper support 11 and a lower support 12 slidingly connected to the upper support 11. The bottom rod group 20 is arranged along the circumferential side of the connecting support 10 and comprises four groups, and the bottom rod group 20 comprises an upper bottom rod 21 and a synchronous rod 22. The bed leg group 30 is provided with four groups, and the bed leg group 30 comprises a leg sleeve 31 and a leg rod 32 inserted into the leg sleeve 31. One end of the upper bottom rod 21 is hingedly connected to the top circumferential side of the upper support 11, and the other end is hingedly connected to the leg sleeve 31. At least one group of the bottom rod group 20 further comprises a lower bottom rod 23, one end of which is hingedly connected to the leg sleeve 31, and the other end is hingedly connected to the upper support 11. One end of the synchronous rod 22 is hingedly connected to the bottom circumferential side of the lower support 12, and the other end is hingedly connected to one end of the upper bottom rod 21 close to the upper support 11.

[0044] It should be noted that in some embodiments, the bottom rod group 20 can also be provided with two groups, three groups, etc., and the relevant number of designs are made according to the specific structure of the child bed, which is not limited thereto, and the number of the bed leg group 30 is also set in this way. In the present embodiment, four groups of the bottom rod group 20 and the bed leg group 30 are taken as examples for discussion.

[0045] The two ends of the synchronous rod 22 are respectively hinged to the upper bottom rod 21 and the lower support 12. Since the upper bottom rod 21 is hinged to the top circumferential side of the upper support 11, and the synchronous rod 22 is hinged to the bottom circumferential side of the lower support 12, the distance between the two hinged points of the synchronous rod 22 is large in the vertical direction. Compared with the design that one end of the synchronous rod 22 is hinged to the lower support 12 and the other end is hinged to the lower bottom rod 23, in the present embodiment, the synchronous rod 22 is connected to the upper bottom rod 21, which can have more generous design space, and the length of the synchronous rod 22 can be designed to be longer, which is convenient for the installation operation of the assembler during assembly. In the process of switching the child bed from the unfolded state to the storage state, the longer synchronous rod 22 can more conveniently drive the lower support 12, so that the sliding of the lower support 12 and the upper support 11 in opposite directions is more smooth. Moreover, during the contraction of the child bed, the synchronous rod 22 will rotate relative to the lower support 12 to the right (viewing angle), and when the synchronous rod 22 is connected to the upper bottom rod, the rotation space is larger, the flexibility is higher, and the rotation is more likely to occur, which improves the fluency of the child bed storage and effectively improves the efficiency of the child bed storage. Figure 2 The longer force arm of the longer synchronous rod 22 corresponds to a smaller driving force, that is, only a smaller force needs to be applied to drive the lower support 12 to relatively slide relative to the upper support 11 through the synchronous rod 22 to achieve the storage of the child bed.

[0046] In addition, in order to ensure the smoothness of the child bed storage, the synchronous rod 22 needs to be kept inclined within a certain angle range when the child bed is in the unfolded state. In the present embodiment, the synchronous rod 22 is hinged to the upper bottom rod 21, and the hinged point between the synchronous rod 22 and the upper bottom rod 21 has a wider design range, which reduces the design difficulty. As shown in Figure 3 The point C is the hinged point of the synchronous rod 22 and the lower support 12, and the range corresponding to the angle a is the inclinable interval of the synchronous rod 22 to ensure the smoothness of the child bed storage, that is, the inclination of the synchronous rod 22 from the a position to the b position can meet the smoothness of the child bed storage. Correspondingly, L1 represents the interval at which the synchronous rod 22 and the upper bottom rod 21 can be hinged, and L2 represents the interval at which the synchronous rod 22 and the lower bottom rod 23 can be hinged. Obviously, L1>L2, that is, in order to ensure the smoothness of the child bed storage, the hinged position between the synchronous rod 22 and the upper bottom rod 21 has a wider design interval ab.

[0047] When the child bed is stored, the upper support 11 is moved upward, the upper bottom rod 21 rotates around the upper support 11 and drives the synchronous rod 22 to exert force on the lower support 12, so that the upper support 11 and the lower support 12 are separated by sliding; the four upper bottom rods 21 are connected to the lower support 12 through the synchronous rod 22, so that the synchronous rotation of the four upper bottom rods 21 during storage is realized, and the smoothness of the child bed storage is improved.

[0048] In this embodiment, at least one set of bottom rod groups 20 is provided with a lower bottom rod 23, which is hinged to the leg sleeve 31 and hinged to the upper support 11 at the other end; the leg sleeve 31 connected with the lower bottom rod 23 is provided with two hinge points, which are the hinge points between the leg sleeve 31 and the upper bottom rod 21 and the leg sleeve 31 and the lower bottom rod 23; during storage, the leg rod 32 on the leg sleeve 31 is limited by the two hinge points and cannot be tilted outward (i.e. Figure 1 the left leg rod 32 on the left side of the middle tilts to the left), which improves the convenience of the child bed storage.

[0049] As known in the art, the child bed usually includes a surrounding rod 70 arranged at the top of the leg rod 32 or a cloth cover sleeved on the four leg rods 32, and the four leg rods 32 are connected together through the cloth cover or the surrounding rod 70; when one of the leg rods 32 is prevented from tilting by the arrangement of the lower bottom rod 23, the other three leg rods 32 will not tilt under the connection of the surrounding rod 70 or the cloth cover, but will only tilt within a certain range, which does not affect the storage operation of the child bed; and the arrangement of the lower bottom rod 23 on only part of the bottom rod groups 20 can reduce the production cost and also reduce the overall weight of the child bed, thereby reducing the labor intensity of the parents in storing or unfolding the child bed. In some embodiments, the lower bottom rod 23 can also be arranged in other quantities, not limited to this.

[0050] It should be noted that the upper bottom rod 21 and the lower bottom rod 23 are arranged in an up-down direction (as shown in Figure 1 ), i.e. the upper bottom rod 21 is arranged above the lower bottom rod 23.

[0051] Referring to Figure 4 and Figure 5 , in an embodiment, in the unfolded state, the upper bottom rod 21 is arranged in a substantially horizontal direction, and the included angle between the synchronous rod 22 and the upper bottom rod 21 is β, which satisfies: 105°≤β≤135°, for example, 105°, 115°, 125°, 135°, etc.

[0052] When the child bed is unfolded, the upper bottom rods 21 are arranged horizontally, and the four upper bottom rods 21 form a supporting plane, so that the child bed has good supportability; through the setting of the β angle, the smoothness of the child bed in storage can be ensured. When the value of β is greater than 135°, the synchronous rod 22 tends to be arranged horizontally, and in the process of folding the child bed, the force of the synchronous rod 22 on the lower support 12 tends to be horizontal, that is, the lower support 12 receives a smaller downward component force, and the synchronous rod 22 has a tendency to press the lower support 12 against the upper support 11 in the horizontal direction (the visual angle of the drawing), which is not conducive to the relative sliding of the upper support 11 and the lower support 12 in the vertical direction, that is, the child bed is not folded smoothly; when the value of β is less than 105°, the synchronous rod 22 tends to be arranged vertically, and the hinge point of the synchronous rod 22 and the upper bottom rod 21 will interfere with the upper support 11, which is not conducive to the layout design of the structure. In summary, when 105°≤β≤135°, the synchronous rod 22 does not interfere with the upper support 11, and at the same time, it is also conducive to the smoothness of the child bed in storage.

[0053] It should be noted that the upper bottom rod 21 is arranged substantially horizontally, and in actual use, the two ends of the upper bottom rod 21 will have one end high and one end low, but overall it is close to horizontal, which does not affect the use of the child bed.

[0054] In an embodiment, in the unfolded state, the distance between the hinge point between the synchronous rod 22 and the lower support 12 and the hinge point between the synchronous rod 22 and the upper bottom rod 21 is h, which satisfies: 50mm≤h≤70mm, for example, 50mm, 55mm, 60mm, 65mm, 70mm, etc.

[0055] When the child bed is unfolded, through the setting of the distance between the two hinge points, the smoothness of the child bed in storage is ensured. When the value of h is less than 50mm, the synchronous rod 22 tends to be arranged vertically, and the hinge point of the synchronous rod 22 and the upper bottom rod 21 will interfere with the upper support 11, which is not conducive to the layout design of the structure; when the value of h is greater than 70mm, the synchronous rod 22 tends to be arranged horizontally, and in the process of folding the child bed, the force of the synchronous rod 22 on the lower support 12 tends to be horizontal, that is, the lower support 12 receives a smaller downward component force, and the synchronous rod 22 has a tendency to press the lower support 12 against the upper support 11 in the horizontal direction (the visual angle of the drawing), which is not conducive to the relative sliding of the upper support 11 and the lower support 12 in the vertical direction, that is, the child bed is not folded smoothly; in summary, when 50mm≤h≤70mm, the synchronous rod 22 does not interfere with the upper support 11, and at the same time, it is also conducive to the smoothness of the child bed in storage.

[0056] Reference Figure 11The horizontal distance between the hinge point of the lower base rod 23 and the upper support 11 and the hinge point of the upper base rod 21 and the upper support 11 is d1 mm, and the horizontal distance between the hinge point of the lower base rod 23 and the leg sleeve 31 and the hinge point of the upper base rod 21 and the leg sleeve 31 is d2 mm, satisfying: d1≠d2; In the unfolded state, in the same base rod group 20, the hinge point of the lower base rod 23 and the upper support 11 is denoted as point G1, the hinge point of the upper base rod 21 and the upper support 11 is denoted as point G2, the hinge point of the lower base rod 23 and the leg sleeve 31 is denoted as point G3, and the hinge point of the upper base rod 21 and the leg sleeve 31 is denoted as point G4; In the horizontal direction, point G1 is located on the side of point G2 closer to the middle of the upper support 11, and point G3 is located on the side of point G4 away from the leg rod 32.

[0057] In this embodiment, the arrangement of the hinge points of the upper base rod 21 and the lower base rod 23 ensures that, in the half-folded state, the top of the leg rod 32 tilts outwards, as shown below. Figure 9 As shown; the children's bed folds up (from...) Figure 1 The unfolded state to Figure 9 Half-folded state, then to Figure 10 When the bed is folded up, first move the upper support 11 upwards. Under the action of the upper bottom rod 21 and the lower bottom rod 23, the top of the leg rod 32 tends to tilt outwards. Two adjacent leg rods 32 will exert opposite forces on the surrounding rod 70 between them, causing the two ends of the surrounding rod 70 to be pulled and smoothly unlocking the connecting joint in the middle of the surrounding rod. Then, when the upper support 11 is moved upwards again, the middle part of the surrounding rod 70 can fall freely and the whole thing forms a "V" shaped folding rod. The children's bed is in a half-folded state. Continue to move the upper support 11 upwards to complete the folding. With this setting in this embodiment, the children's bed can be quickly unlocked and folded up, thereby improving the convenience of folding.

[0058] Meanwhile, during the unfolding process of the children's bed (from Figure 10 Storage complete status Figure 9 Half-folded state, then to Figure 1 When the upper support 11 is moved downwards (in the unfolded state), the leg rod 32 tends to tilt outwards under the action of the upper bottom rod 21 and the lower bottom rod 23. The two adjacent leg rods 32 will exert opposite forces on the surrounding rod 70 between the adjacent leg rods 32, so that the surrounding rod 70 can be quickly unfolded and straightened (the surrounding rod 70 goes from a bent state to a straight state), which effectively improves the convenience of unfolding the children's bed and improves the unfolding efficiency.

[0059] It should be noted that in some embodiments, point G1 is located on the side of point G2 away from the middle of the upper support 11, and point G3 is located on the side of point G4 closer to the leg 32. This arrangement also ensures that the leg 32 tilts outward in the half-folded state.

[0060] See Figure 9In one embodiment, when in the half-folded state, the leg 32 is angled relative to the vertical direction (e.g., Figure 12 As shown in the mid-angle θ), the distance between the bottom of two adjacent leg bars 32 is less than the distance between the top of the two adjacent leg bars 32; that is, the top of the leg bar 32 is tilted outward, which can ensure the convenience of operation of the children's bed during folding and unfolding. For detailed analysis, please refer to the above embodiment, which will not be repeated here.

[0061] See Figure 6 and Figure 7 In one embodiment, when unfolded, the central axes of two non-adjacent upper bottom rods 21 coincide; the four upper bottom rods 21 divide the bottom of the children's bed into two first zones 40 and two second zones 50, the first zones 40 and the second zones 50 are adjacent, and the included angle between the two upper bottom rods 21 used to form the first zone 40 is smaller than the included angle between the two upper bottom rods 21 used to form the second zone 50; each bottom rod group 20 has one synchronizing rod 22, the synchronizing rod 22 is located in the second zone 50 and the synchronizing rod 22 is connected to the surface of the upper bottom rod 21 near the second zone 50.

[0062] The central axes of two non-adjacent upper bottom rods 21 coincide, that is, two non-adjacent upper bottom rods 21 are on a straight line. The bottom of the children's bed formed by the four upper bottom rods 21 is rectangular. Accordingly, the four upper bottom rods 21 divide the bottom into four areas, including two first areas 40 and two second areas 50. The arrangement of the synchronous rods 22 enhances the strength of the children's bed and is conducive to its stability.

[0063] In actual use, the child on the child bed will move around on the bed. When the child is in the first area 40, the two upper bottom rods 21 forming the first area 40 are close to each other, and the child in the first area 40 is well supported. When the child moves in the first area 40, the force of the child on the upper bottom rods 21 is downward, and the two upper bottom rods 21 forming the first area 40 do not have a tendency to expand outward (or have a smaller tendency to expand outward). When the child is in the second area 50, the two upper bottom rods 21 forming the second area 50 are far apart, and the child in the second area 50 will exert an outward expansion force on the two upper bottom rods 21 forming the second area 50, which will increase the angle between the two upper bottom rods 21 forming the second area 50. The synchronization rod 22 in this embodiment is arranged in the second area 50, and when the two upper bottom rods 21 forming the second area 50 have a tendency to expand outward, the synchronization rod 22 in the second area 50 can hold the two upper bottom rods 21, and at this time the synchronization rod 22 is subjected to a pulling force. When the synchronization rod 22 is arranged in the first area 40, as analyzed above, the synchronization rod 22 will be subjected to a pushing force from the two upper bottom rods 21 forming the second area 50, and at this time the synchronization rod 22 is subjected to a pushing force. The synchronization rod 22 itself is a connecting structure, and has a weak pressure-bearing capacity and a strong yield tensile capacity, so it is easy to bend and deform under the pushing force, reducing the service life.

[0064] Therefore, the synchronization rod 22 is arranged in the second area 50, which improves the deformation resistance and service life of the child bed. In addition, only one synchronization rod 22 is arranged in each group of bottom rods 20, which reduces the production cost, weight, and assembly time of the child bed, and reduces the labor intensity of the production and assembly personnel (only one synchronization rod 22 needs to be installed).

[0065] In some embodiments, the two groups of bottom rods 20 are provided with lower bottom rods 23, and the lower bottom rods 23 are arranged in non-adjacent groups of bottom rods 20.

[0066] The lower bottom rod 23 is provided with two lower bottom rods 23, and is arranged in non-adjacent groups of bottom rods 20. When the child bed is folded, two leg rods 32 will not fall outward. The two leg rods 32 (non-adjacent) are prevented from falling by the arrangement of the lower bottom rod 23, and the other two leg rods 32 are also prevented from falling due to the connection of the surrounding rod 70 or the external sleeve. Compared with the arrangement of one lower bottom rod 23, the inclination of the other two leg rods 32 in this embodiment is smaller, further improving the smoothness of the folding of the child bed.

[0067] In addition, the arrangement of the two lower bottom rods 23 is beneficial to the uniformity of the overall weight of the children's bed, and the uniform weight facilitates the direction control when the children's bed is moved by the universal wheels; meanwhile, in the embodiment, only two non-adjacent lower bottom rods 23a and 23b are arranged, and the two lower bottom rods 23a and 23b extend along the same line in length, which not only ensures the uniformity of the overall weight of the children's bed, but also ensures the support strength of the children's bed; compared with the arrangement of four lower bottom rods 23, the embodiment reduces the number of the lower bottom rods 23, and reduces the production cost and the labor intensity during assembly (only two lower bottom rods 23 need to be assembled).

[0068] Further, referring to Figure 6 and Figure 7 , in the unfolded state, the central axes of the two non-adjacent upper bottom rods 21 coincide; the four upper bottom rods 21 divide the bottom of the children's bed into two first areas 40 and two second areas 50, the first area 40 is adjacent to the second area 50, and the included angle between the two upper bottom rods 21 for forming the first area 40 is smaller than the included angle between the two upper bottom rods 21 for forming the second area 50; each bottom rod group 20 of the two bottom rod groups 20 provided with the lower bottom rod 23 has a synchronous rod 22, the synchronous rod 22 is located in the second area 50, and the synchronous rod 22 is connected to the rod body surface of the upper bottom rod 21 close to the second area 50, so that the two synchronous rods 22 are arranged in a staggered manner.

[0069] In the embodiment, each bottom rod group 20 of the two bottom rod groups 20 provided with the lower bottom rods 23a and 23b and extending in the same direction has a synchronous rod 22a and 22b, and the two synchronous rods 22a and 22b (the synchronous rods 22a and 22b arranged in the bottom rod group 20 provided with the lower bottom rods 23a and 23b) are arranged on opposite sides of the two lower bottom rods 23a and 23b, that is, the two synchronous rods 22 are centrally symmetrically arranged with the connecting support as the center; such arrangement is because the two groups of bottom rod groups 20 provided with the lower bottom rods 23a and 23b and extending in the same direction can jointly improve the uniformity of the weight and the support strength of the children's bed, and on this basis, the two synchronous rods 22a and 22b arranged in a single-side staggered combination form can further improve the stress balance of the children's bed base. Moreover, compared with the arrangement of two synchronous rods 22 on both sides of each bottom rod group, the embodiment can save materials, reduce weight and assembly workload under the premise of ensuring the structural stress and stability of the children's bed; if the two synchronous rods 22a and 22b are arranged on the same side of the two lower bottom rods 23a and 23b, the stress of the base is not balanced as tested, and after being used for a period of time, there will be a tendency to tilt to the other side of the two lower bottom rods 23a and 23b.

[0070] It should be noted that in the two groups without the bottom rod group 20 provided with the bottom rod 23, the number and arrangement position of the synchronous rods 22 can be arranged according to the actual needs of the child bed; for example, the synchronous rod 22 is arranged in the second area 50, and the specific effect is described in the foregoing embodiment, which will not be described here.

[0071] Referring to Figure 4 In an embodiment, in the unfolded state, the upper bottom rod 21 is arranged in a substantially horizontal manner; in the same bottom rod group 20, the distance between the upper bottom rod 21 and the lower bottom rod 23 in the vertical direction gradually increases from the leg sleeve 31 towards the connecting support 10.

[0072] The lower bottom rod 23 is arranged in an inclined manner, which has a good supporting effect when the child bed is used, effectively improving the stability of the child bed.

[0073] Referring to Figure 8 In an embodiment, the upper support 11 includes a hinged part 111 and a sliding part 112, and the sliding part 112 is arranged at the bottom of the hinged part 111; the lower support 12 is sleeved on the sliding part 112, and the hinged part 111 is used for being hinged with the upper bottom rod 21 and the lower bottom rod 23; the locking structure 60 is arranged between the upper support 11 and the lower support 12, and the locking structure 60 includes a driving block 61, a locking block 62 and a driving rod 63; the sliding part 112 is provided with a receiving groove 1121, the driving block 61 is slidably arranged in the receiving groove 1121, and the groove wall of the receiving groove 1121 is provided with an avoiding opening 1122; the locking block 62 is rotationally arranged at the groove bottom of the receiving groove 1121, and a driving hole 621 is formed in the surface of the locking block 62; the driving rod 63 is fixed at one end of the driving block 61 close to the locking block 62, and the driving rod 63 penetrates the driving hole 621; when the driving block 61 drives the driving rod 63 to slide in the receiving groove 1121, the driving rod 63 drives the locking block 62 to rotate through the driving hole 621, so that the locking block 62 can selectively enter or exit the avoiding opening 1122.

[0074] In the embodiment, the lower support 12 is sleeved on the sliding part 112, and the lower support 12 can slide along the sliding part 112, which is conducive to the stable movement of the lower support 12, and the lower support 12 and the sliding part 112 will not shake, effectively improving the smoothness when the child bed is stored.

[0075] In the embodiment, the locking structure 60 is further arranged between the lower support 12 and the upper support 11, and when the child bed is in the unfolded state, the locking structure 60 can lock the relative position between the lower support 12 and the upper support 11, so that the relative movement between the two is prevented, the stability of the child bed in the unfolded state is ensured, and the use safety is improved; when the child bed needs to be stored, the locking structure 60 is unlocked, so that the lower support 12 can slide relative to the upper support 11.

[0076] When the child bed is in the unfolded state, the locking block 62 extends from the inside of the accommodating groove 1121 to the outside of the sliding part 112 through the avoiding opening 1122 and abuts against the bottom of the lower support 12, at this time, the lower support 12 is relatively static with the upper support 11; when it is needed to store the child bed, the driving block 61 is pulled upward, the driving block 61 drives the driving rod 63 to move upward, the driving rod 63 slides in the driving hole 621, so that the locking block 62 rotates until the locking block rotates into the accommodating groove 1121 (that is, the locking block 62 leaves the bottom of the lower support 12), at this time, the lower support 12 slides downward along the sliding part 112, realizing the storage operation of the child bed, which is simple in structure and convenient to use.

[0077] On the other hand, the application also relates to a child bed comprising any one of the foregoing base structures, and the child bed further comprises a foldable surrounding rod 70 arranged at the top of the leg rod 32.

[0078] By adopting the technical scheme provided in the embodiments of the application, the one end of the synchronous rod 22 is hinged to the upper bottom rod 21, the other end is hinged to the bottom of the lower support 12, the upper bottom rod 21 is hinged to the top of the upper support 11, in the vertical direction, the distance between the two hinge points of the synchronous rod 22 is large, that is, the length of the synchronous rod 22 is longer, which can facilitate the installation operation of the assembler during assembly; the synchronous rod 22 can more conveniently drive the lower support 12, so that the lower support 12 and the upper support 11 move in opposite directions more smoothly, improving the fluency of the child bed storage and effectively improving the child bed storage efficiency; and during the child bed storage process, the driving force required by the longer synchronous rod 22 is smaller.

[0079] In the embodiments of the application, the terms or descriptions of different embodiments are consistent and can be mutually referred to if there is no special description and logical conflict, and the technical features in different embodiments can be combined to form new embodiments according to their inherent logical relationship. In the application, “at least one” means one or more, and “multiple” means two or more.

[0080] It can be understood that the various numbers involved in the embodiments of the application are only for convenient differentiation and do not limit the scope of the embodiments of the application. The size of the serial number of the above processes does not mean the order of execution, and the execution order of the processes should be determined according to their functions and inherent logic.

[0081] The base structure and the child bed provided by the embodiments of the present application are described in detail above, and the principles and implementation manners of the present application are described by applying specific examples in this paper; the above embodiment description is only used to help understand the present application and its core idea; meanwhile, for those skilled in the art, according to the idea of the present application, the specific implementation manners and application ranges will be changed, and the above description should not be understood as the limitation of the present application.

Claims

1. A base structure, characterized in that, include: A connecting support includes an upper support and a lower support that slides onto the upper support; A base rod assembly, spaced apart along the periphery of the connecting support, includes an upper base rod and a synchronizing rod; and A bed leg assembly, comprising a leg sleeve and a leg rod inserted into the leg sleeve; Wherein, one end of the upper bottom rod is hinged to the top periphery of the upper support, and the other end is hinged to the leg sleeve; At least one set of the base rod assembly further includes a lower base rod, one end of which is hinged to the leg sleeve and the other end of which is hinged to the upper support; One end of the synchronizing rod is hinged to the bottom periphery of the lower support, and the other end is hinged to the end of the upper bottom rod near the upper support.

2. The base structure as described in claim 1, characterized in that, In the unfolded state, in the same base rod group, the hinge point between the lower base rod and the upper support is recorded as point G1, the hinge point between the upper base rod and the upper support is recorded as point G2, the hinge point between the lower base rod and the leg sleeve is recorded as point G3, and the hinge point between the upper base rod and the leg sleeve is recorded as point G4. In the horizontal direction, point G1 is located on the side of point G2 closer to the middle of the upper support, and point G3 is located on the side of point G4 away from the leg. or, In the horizontal direction, point G1 is located on the side of point G2 away from the middle of the upper support, and point G3 is located on the side of point G4 closer to the leg.

3. The base structure as described in claim 1, characterized in that, In the half-folded state, the leg is set at an angle to the vertical direction, and the distance between the bottom of two adjacent leg members is smaller than the distance between the top of two adjacent leg members.

4. The base structure as described in claim 1, characterized in that, When unfolded, the central axes of two non-adjacent upper bottom rods coincide; the four upper bottom rods divide the bottom of the crib into two first zones and two second zones, the first zones being adjacent to the second zones, and the included angle between the two upper bottom rods forming the first zone being smaller than the included angle between the two upper bottom rods forming the second zone; The number of synchronizing rods in each bottom rod group is one, the synchronizing rod is located in the second zone and the synchronizing rod is connected to the surface of the upper bottom rod near the second zone.

5. The base structure as described in claim 1, characterized in that, The two sets of bottom rods are provided with the lower bottom rod, and the lower bottom rod is provided in two non-adjacent sets of bottom rods.

6. The base structure as described in claim 5, characterized in that, When unfolded, the central axes of two non-adjacent upper bottom rods coincide; the four upper bottom rods divide the bottom of the crib into two first zones and two second zones, the first zones being adjacent to the second zones, and the included angle between the two upper bottom rods forming the first zone being smaller than the included angle between the two upper bottom rods forming the second zone; Each of the two sets of bottom rods provided with the lower bottom rod has a synchronizing rod, which is located in the second zone and is connected to the surface of the upper bottom rod near the second zone, so that the two synchronizing rods are staggered.

7. The base structure as described in claim 1, characterized in that, When unfolded, the upper bottom rod is arranged in a basically horizontal position; In the same base rod assembly, the vertical distance between the upper base rod and the lower base rod gradually increases from the leg sleeve toward the connecting support.

8. The base structure as described in claim 1, characterized in that, The upper support includes a hinge portion and a sliding portion, the sliding portion being disposed at the bottom of the hinge portion; the lower support is sleeved on the sliding portion, and the hinge portion is used to hinge with the upper bottom rod and the lower bottom rod.

9. The base structure as described in claim 8, characterized in that, A locking structure is provided between the upper support and the lower support, and the locking structure includes a driving block, a locking block and a driving rod; The sliding joint is provided with a receiving groove, the driving block slides in the receiving groove, and the groove wall of the receiving groove is provided with an avoidance opening; The locking block is rotatably disposed at the bottom of the receiving groove, and a driving hole is formed on the surface of the locking block; The drive rod is fixed to one end of the drive block near the locking block, and the drive rod passes through the drive hole; When the drive block drives the drive rod to slide within the receiving groove, the drive rod drives the locking block to rotate through the drive hole, allowing the locking block to selectively enter and exit the clearance opening.

10. A children's bed, characterized in that, Including the base structure as described in any one of claims 1 to 9, the children's bed also includes a foldable railing disposed at the top of the leg posts.

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