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, and in particular to a base structure and a children's bed. Background Art

[0002] Children's beds provide a space for children to sleep or move around. Children's beds can be folded and stored to improve the convenience of children's beds. In the base structure of some children's beds, the middle base includes an upper support and a lower support, and the upper bottom rod and the lower bottom rod are hinged on the upper support. When the children's bed is stored, the lower support and the upper support slide relative to each other to achieve storage. In actual operation, the deformation of the base structure is not flexible, 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 existing technology. Summary of the invention

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

[0005] According to one aspect of the present application, the present application provides a base structure, including a connecting support, a bottom rod group and a bed retreat group, the connecting support including an upper support and a lower support slidably connected to the upper support; the bottom rod group is arranged at intervals along the circumference of the connecting support, and the bottom rod group includes an upper bottom rod and a synchronization rod; the bed leg group includes 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 circumference of the upper support, and the other end is hinged to the leg sleeve; at least one group of the bottom rod group also includes a lower bottom rod, one end of the lower bottom rod is hinged to the leg sleeve, and the other end is hinged to the upper support; one end of the synchronization rod is hinged to the bottom circumference of the lower support, and the other end is hinged to one end of the upper bottom rod close to the upper support.

[0006] In one embodiment, when in the unfolded state, in the same bottom rod group, the hinge point between the lower bottom rod and the upper support is recorded as point G1, the hinge point between the upper bottom rod and the upper support is recorded as point G2, the hinge point between the lower bottom rod and the leg cover is recorded as point G3, and the hinge point between the upper bottom rod and the leg cover is recorded as point G4; wherein, in the horizontal direction, point G1 is located on the side of point G2 close to the middle of the upper support, and point G3 is located on the side of point G4 away from the leg rod; 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 close to the leg rod.

[0007] In one embodiment, in the half-folded state, the leg rods are arranged at an angle to the vertical direction, and the distance between the bottoms of two adjacent leg rods is smaller than the distance between the tops of 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 areas and two second areas, the first area is adjacent to the second area, and the angle between the two upper bottom rods used to form the first area is smaller than the angle between the two upper bottom rods used to form the second area; the number of the synchronization rod in each bottom rod group is one, the synchronization rod is in the second area and the synchronization rod is connected to the rod body surface of the upper bottom rod close to the second area.

[0009] In one embodiment, the lower bottom rods are provided in two groups of the bottom rod groups, and the lower bottom rods are arranged in two non-adjacent groups of the 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 areas and two second areas, the first area is adjacent to the second area, and the angle between the two upper bottom rods used to form the first area is smaller than the angle between the two upper bottom rods used to form the second area; each of the two groups of bottom rod groups provided with the lower bottom rods has one synchronization rod, which is in the second area and is connected to the surface of the rod body of the upper bottom rod close to the second area, so that the two synchronization rods are staggered.

[0011] In one embodiment, in the unfolded state, the upper bottom rod is arranged substantially horizontally; in the same bottom rod group, the vertical distance between the upper bottom rod and the lower bottom rod gradually increases from the leg cover toward the connecting support.

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

[0013] In one embodiment, 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 portion is provided with a receiving groove, the driving block is slidably connected to the receiving groove, and the groove wall of the receiving groove is provided with an avoidance opening; the locking block is rotatably arranged at the groove bottom of the receiving groove, and a driving hole is provided on the surface of the locking block; the driving rod is fixed to one end of the driving block close to the locking block, and the driving rod is inserted into 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 avoidance opening.

[0014] According to another aspect of the present application, a children's bed is provided, comprising any of the aforementioned base structures, the children's bed further comprising a foldable fence rod disposed on the top of the leg rod.

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

[0016] The technical solution and other beneficial effects of the present application will be made apparent by describing in detail the specific implementation methods of the present application in conjunction with the accompanying drawings.

[0017] Figure 1 It is a schematic diagram of the expansion of a children's bed provided in an embodiment of the present application.

[0018] Figure 2 yes Figure 1 Enlarged view of point A in the middle.

[0019] Figure 3 It is a schematic diagram of the principle of a synchronization rod connection provided in an embodiment of the present application.

[0020] Figure 4 yes Figure 1 Schematic diagram from another perspective.

[0021] Figure 5 yes Figure 4 Enlarged view of point B in the middle.

[0022] Figure 6 yes Figure 1 Bottom view of the .

[0023] Figure 7 yes Figure 6 Enlarged view of point D in the middle.

[0024] Figure 8 yes Figure 6 Partial cross-sectional view at EE in the middle.

[0025] Fig. 9 It is a schematic diagram of the storage process (half folding) of a children's bed provided in an embodiment of the present application.

[0026] Fig.10 This is a schematic diagram of a children's bed provided in an embodiment of the present application after storage.

[0027] Fig.11 It is a schematic diagram of the hinged bottom bar assembly when the child's bed provided by an embodiment of the present application is in an unfolded state.

[0028] Fig.12 yes Fig. 9 main view.

[0029] In the figure:

[0030] 10. Connecting support; 11. Upper support; 111. Articulated portion; 112. Sliding portion; 1121. Accommodating groove; 1122. Avoidance opening; 12. Lower support;

[0031] 20. Bottom rod assembly; 21. Upper bottom rod; 22. Synchronous rod; 23. Lower bottom rod;

[0032] 30. Bed leg set; 31. Leg cover; 32. Leg rod;

[0033] 40. District 1;

[0034] 50. District 2;

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

[0036] 70. Fence. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0038] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

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

[0040] In the prior art, when the child bed is folded, the linkage flexibility between the lower bottom rod, the synchronization rod and the lower support is poor, which is not conducive to the smooth folding of the child bed.

[0041] In order to solve the above-mentioned technical problems, an embodiment of the present application provides a base structure, including a connecting support, a bottom rod group and a bed retreat group, the connecting support including an upper support and a lower support slidably connected to the upper support; the bottom rod group is arranged at intervals along the circumference of the connecting support, and the bottom rod group includes an upper bottom rod and a synchronization rod; the bed leg group includes 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 circumference of the upper support, and the other end is hinged to the leg sleeve; at least one group of the bottom rod group also includes a lower bottom rod, one end of the lower bottom rod is hinged to the leg sleeve, and the other end is hinged to the upper support; one end of the synchronization rod is hinged to the bottom circumference of the lower support, and the other end is hinged to one end of the upper bottom rod close to the upper support.

[0042] One end of the synchronization rod is hinged to the upper bottom rod, and the other end is hinged to the bottom of the lower support, and the upper bottom rod is hinged to the top of the upper support. In the vertical direction, the distance between the two hinge points of the synchronization rod is large, that is, the length of the synchronization rod will be longer, which can facilitate the installation operation of the assembler during assembly; the synchronization rod can more conveniently drive the lower support, so that the lower support and the upper support move more smoothly in opposite directions, which improves the smoothness of the child bed storage and effectively improves the efficiency of the child bed storage; and during the child bed storage process, the longer synchronization rod requires less driving force. The following is a detailed explanation.

[0043] See also Figure 1-3 , Fig. 9 and Fig.10 In one embodiment, the base structure includes a connecting support 10, a bottom rod group 20 and a bed retreat group, the connecting support 10 includes an upper support 11 and a lower support 12 slidably connected to the upper support 11; the bottom rod group 20 is provided with four groups along the peripheral side of the connecting support 10, the bottom rod group 20 includes an upper bottom rod 21 and a synchronous rod 22; there are four groups of bed leg groups 30, the bed leg group 30 includes a leg cover 31 and a leg rod 32 inserted into the leg cover 31; wherein one end of the upper bottom rod 21 is hinged to the top peripheral side of the upper support 11, and the other end is hinged to the leg cover 31; at least one group of bottom rod groups 20 also includes a lower bottom rod 23, one end of the lower bottom rod 23 is hinged to the leg cover 31, and the other end is hinged to the upper support 11; one end of the synchronous rod 22 is hinged to the bottom peripheral side of the lower support 12, and the other end is hinged 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 in two groups, three groups, etc., and the relevant number is designed according to the specific structure of the child bed, but not limited to this. The same is true for the number of the bed leg group 30. In this embodiment, the bottom rod group 20 and the bed leg group 30 are provided with four groups as an example for discussion.

[0045] The two ends of the synchronization 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 peripheral side of the upper support 11, and the synchronization rod 22 is hinged to the bottom peripheral side of the lower support 12, in the vertical direction, the two hinge points of the synchronization rod 22 are relatively large. Compared with the design in which one end of the synchronization rod 22 is hinged to the lower support 12 and the other end is hinged to the lower bottom rod 23, in this embodiment, the synchronization rod 22 is connected to the upper bottom rod 21, which can have more ample design space, and the length of the synchronization 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 stored state, the longer synchronization 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 smoother; and when the child bed is retracted, the synchronization rod 22 will move to the right ( Figure 2 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 easier, which improves the smoothness of the child bed storage and effectively improves the child bed storage efficiency. In addition, during the child bed storage process, the longer synchronous rod 22 has a longer force arm and a corresponding smaller driving force, that is, only a small force is required to drive the lower support 12 to 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 smooth storage of the child bed, the synchronization rod 22 needs to be kept tilted within a certain angle range when the child bed is unfolded; in this embodiment, the synchronization rod 22 is hinged to the upper bottom rod 21, and the hinge point between the synchronization rod 22 and the upper bottom rod 21 has a wider design range, which reduces the design difficulty: Figure 3 As shown, point C is the hinge point of the synchronization rod 22 and the lower support 12, and the range corresponding to the angle α is the tiltable range of the synchronization rod 22 to ensure smooth storage of the child bed, that is, the tilting of the synchronization rod 22 from position a to position b can meet the smooth storage of the child bed; accordingly, L1 represents the hingeable range of the synchronization rod 22 and the upper bottom rod 21, and L2 represents the hingeable range when the synchronization rod 22 is connected to the lower bottom rod 23. Obviously, L1>L2, that is, in order to ensure smooth storage of the child bed, the hinge position between the synchronization rod 22 and the upper bottom rod 21 will have a wider design range ab.

[0047] When folding the child's bed, the upper support 11 is moved upward, and the upper bottom rod 21 rotates around the upper support 11, thereby driving the synchronization rod 22 to apply a force to the lower support 12, so that the upper support 11 and the lower support 12 slide and separate; the four upper bottom rods 21 are connected to the lower support 12 through the synchronization rod 22, so that the four upper bottom rods 21 can rotate synchronously during the folding process, thereby improving the smoothness of the folding of the child's bed.

[0048] In this embodiment, at least one group of bottom rod groups 20 is provided with a lower bottom rod 23, and the lower bottom rod 23 is hinged on the leg sleeve 31, and the other end is hinged on the upper support 11; the leg sleeve 31 connected with the lower bottom rod 23 is provided with two hinge points, namely, the hinge points between the leg sleeve 31 and the upper bottom rod 21, and the hinge points between the leg sleeve 31 and the lower bottom rod 23. During the storage process, the leg rod 32 on the leg sleeve 31 is restricted by the two hinge points and will not move outward (i.e. Figure 1 The leg rod 32 on the left side of the middle is tilted to the left, which improves the convenience of storing the children's bed.

[0049] As is well known in the art, a child bed generally includes a surrounding rod 70 disposed on the top of the leg rod 32 or a cloth cover mounted on the four leg rods 32, and the four leg rods 32 are connected together by the cloth cover or the surrounding rod 70; when one of the leg rods 32 is prevented from tipping over by the setting of the lower bottom rod 23, the other three leg rods 32 will not tip over under the connection of the surrounding rod 70 or the cloth cover, and will only tilt within a certain range, but will not affect the storage operation of the child bed; and, only setting the lower bottom rod 23 on part of the bottom rod group 20 can reduce production costs, and at the same time can reduce the overall weight of the child bed, thereby reducing the labor intensity of parents storing or unfolding the child bed. In some embodiments, the lower bottom rod 23 can also be set 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 vertically up and down (such as Figure 1 As shown), the upper base rod 21 is arranged above the lower base rod 23.

[0051] See also Figure 4 and Figure 5 In one embodiment, when in the unfolded state, the upper base rod 21 is arranged substantially horizontally, and the angle between the synchronization rod 22 and the upper base rod 21 is β, satisfying: 105°≤β≤135°, for example, 105°, 115°, 125°, 135°, etc.

[0052] When the child bed is unfolded, the upper bottom rod 21 is arranged horizontally, and the four upper bottom rods 21 will form a support plane to ensure that the child bed has good support; by setting the angle β, the child bed can be stored smoothly. When the value of β is greater than 135°, the synchronization rod 22 tends to be arranged horizontally. During the storage process of the child bed, the force of the synchronization rod 22 on the lower support 12 tends to be horizontal, that is, the lower support 12 is subjected to a smaller downward force, and the synchronization rod 22 has a tendency to press the lower support 12 horizontally (from the perspective of the figure) against the upper support 11, 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 stored smoothly; when the value of β is less than 105°, the synchronization rod 22 tends to be set vertically, and the hinge point between the synchronization 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 synchronization rod 22 does not interfere with the upper support 11, and is also conducive to smooth storage of the child bed.

[0053] It should be noted that the upper bottom rod 21 is arranged basically horizontally. In actual use, one end of the upper bottom rod 21 may be higher than the other end, but the overall appearance is nearly horizontal and does not affect the use of the children's bed.

[0054] In one embodiment, in the unfolded state, the distance from the hinge point between the synchronization rod 22 and the lower support 12 to the hinge point between the synchronization rod 22 and the upper base rod 21 is h, satisfying: 50㎜≤h≤70㎜, for example 50㎜, 55㎜, 60㎜, 65㎜, 70㎜, etc.

[0055] When the child bed is unfolded, the spacing between the two hinge points is set to ensure smooth storage of the child bed. When the value of h is less than 50 mm, the synchronization rod 22 tends to be set vertically, and the hinge point between the synchronization 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 70 mm, the synchronization rod 22 tends to be arranged horizontally. During the storage process of the child bed, the force of the synchronization rod 22 on the lower support 12 tends to be horizontal, that is, the lower support 12 is subjected to a smaller downward component force, and the synchronization rod 22 has a tendency to press the lower support 12 horizontally (from the perspective of the figure) against the upper support 11, 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 stored smoothly; in summary, when 50 mm ≤ h ≤ 70 mm, the synchronization rod 22 does not interfere with the upper support 11, and is also conducive to the smooth storage of the child bed.

[0056] See also Fig.11, the horizontal spacing between the hinge point of the lower bottom rod 23 and the upper support 11 and the hinge point of the upper bottom rod 21 and the upper support 11 is d1㎜, the horizontal spacing between the hinge point of the lower bottom rod 23 and the leg cover 31 and the hinge point of the upper bottom rod 21 and the leg cover 31 is d2㎜, satisfying: d1≠d2; in the unfolded state, in the same bottom rod group 20, the hinge point of the lower bottom rod 23 and the upper support 11 is recorded as point G1, the hinge point of the upper bottom rod 21 and the upper support 11 is recorded as point G2, the hinge point of the lower bottom rod 23 and the leg cover 31 is recorded as point G3, and the hinge point of the upper bottom rod 21 and the leg cover 31 is recorded as point G4; in the horizontal direction, point G1 is located on the side of point G2 close 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, by arranging the positions of the hinge points of the upper bottom bar 21 and the lower bottom bar 23, it can be ensured that when in the half-folded state, the top of the leg bar 32 is tilted outwards, such as Fig. 9 As shown; children's bed folded (from Figure 1 The expanded state to Fig. 9 Half fold state, then Fig.10 When the storage is completed, the upper support 11 is first moved upward. 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 outward, and the two adjacent leg rods 32 will apply forces in opposite directions to the surrounding rod 70 between the adjacent leg rods 32, so that the two ends of the surrounding rod 70 are pulled and the connecting joint in the middle of the surrounding rod is smoothly unlocked. When the upper support 11 is further moved upward, the middle part of the surrounding rod 70 can fall freely and make the whole "V"-shaped folding rod, and the child bed is in a half-folded state. The upper support 11 is continued to be moved upward to complete the storage. The arrangement of this embodiment is conducive to the rapid unlocking and folding of the child bed, thereby improving the convenience of storage.

[0058] At the same time, the child bed is unfolded (from Fig.10 Storage completed status Fig. 9 Half fold state, then Figure 1 The upper support 11 is moved downward, and under the action of the upper bottom rod 21 and the lower bottom rod 23, the leg rod 32 tends to tilt outward, and the two adjacent leg rods 32 exert forces in opposite directions 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 changes from a bent state to a straight state), which effectively improves the convenience of the unfolding operation of the children's bed and improves the unfolding efficiency.

[0059] It should be noted that in other 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 close to the leg rod 32. Such an arrangement can also ensure that the leg rod 32 tilts outward in the half-folded state.

[0060] See also Fig. 9In one embodiment, when in the half-folded state, the leg rod 32 is set at an angle to the vertical direction (such as Fig.12 The distance between the bottoms of two adjacent leg rods 32 is smaller than the distance between the tops of the two adjacent leg rods 32; that is, the tops of the leg rods 32 are inclined outward, which can ensure the convenience of operation of the child bed during folding and unfolding. For detailed analysis, please refer to the above embodiment, which will not be repeated here.

[0061] See also Figure 6 and Figure 7 In one embodiment, in the unfolded state, the central axes of two non-adjacent upper bottom rods 21 coincide with each other; the four upper bottom rods 21 divide the bottom of the child bed into two first areas 40 and two second areas 50, the first area 40 is adjacent to the second area 50, and the angle between the two upper bottom rods 21 used to form the first area 40 is smaller than the angle between the two upper bottom rods 21 used to form the second area 50; the number of synchronization rods 22 in each bottom rod group 20 is one, the synchronization rod 22 is in the second area 50, and the synchronization rod 22 is connected to the rod body surface of the upper bottom rod 21 close to the second area 50.

[0062] The central axes of two non-adjacent upper bottom rods 21 coincide, that is, the two non-adjacent upper bottom rods 21 are on a straight line, and the bottom of the child bed surrounded by four upper bottom rods 21 is a rectangle. 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 position of the synchronization rod 22 enhances the strength of the child bed, which is beneficial to the stability of the child bed.

[0063] In actual use, the child on the child bed will move around in the bed. When the child is in the first area 40, since the angle between the two upper bottom bars 21 forming the first area 40 is small, that is, the two upper bottom bars 21 forming the first area 40 are close to each other, which provides a good support effect on the child in the first area 40. When the child moves in the first area 40, most of the force exerted by the child on the upper bottom bars 21 is downward, which will not cause the two upper bottom bars 21 forming the first area 40 to have an outward expansion tendency (or a small outward expansion tendency); when the child is in the second area 50, since the angle between the two upper bottom bars 21 forming the second area 50 is large, that is, the two upper bottom bars 21 forming the second area 50 are far apart from each other, when the child moves in the second area 50, it will cause the upper bottom bars 21 forming the second area 50 to expand outward. The force of the two upper bottom bars 21 expanding outwards will increase the angle between the two upper bottom bars 21 forming the second area 50. The synchronization rod 22 of the present embodiment is arranged in the second area 50. When the two upper bottom bars 21 forming the second area 50 have a tendency to expand outwards, the synchronization rod 22 in the second area 50 can pull the two upper bottom bars 21. At this time, the synchronization rod 22 is subjected to a tensile force. When the synchronization rod 22 is arranged in the first area 40, it can be known from the above analysis that the synchronization rod 22 will be subjected to a pushing force from the two upper bottom bars 21 forming the second area 50. At this time, the synchronization rod 22 is subjected to a pushing force. The synchronization rod 22 itself is a connecting structural member, and its pressure bearing capacity and rigid support are usually weak, but its yield tensile strength is strong. Therefore, it is easy to bend and deform under the action of the pushing force, thereby reducing its service life.

[0064] Therefore, the synchronization rod 22 is arranged in the second zone 50, which improves the deformation resistance and service life of the children's bed; in addition, only one synchronization rod 22 is arranged in a group of bottom rod groups 20, which reduces the production cost, weight and assembly time of the children's bed, makes it easier for parents to store and unfold the children's bed, and reduces the labor intensity of production and assembly personnel (only one synchronization rod 22 needs to be installed).

[0065] In some embodiments, lower bottom bars 23 are provided in the two bottom bar groups 20 , and the lower bottom bars 23 are disposed in two non-adjacent bottom bar groups 20 .

[0066] There are two lower bottom rods 23, and they are arranged in non-adjacent bottom rod groups 20. When the child bed is stored, two leg rods 32 will not fall outward; two of the leg rods 32 (non-adjacent) are prevented from falling out by the setting of the lower bottom rod 23, and the other two leg rods 32 will not fall out due to the connection effect of the surrounding rod 70 or the cloth cover on the outside. Compared with the setting of one lower bottom rod 23, the inclination degree of the other two leg rods 32 in this embodiment will be smaller, which further improves the smoothness of the storage of the child bed.

[0067] In addition, the provision of two lower bottom rods 23 is beneficial to the uniformity of the overall weight of the child bed, and the uniform weight can facilitate the direction control of the child bed when it moves through universal wheels; at the same time, the present embodiment only provides two non-adjacent lower bottom rods 23a, 23b, and the two lower bottom rods 23a, 23b extend basically along the same straight line in length, which not only ensures the uniformity of the overall weight of the child bed, but also ensures the supporting strength that the child bed should have; compared with providing four lower bottom rods 23, the present embodiment reduces the number of lower bottom rods 23, reduces the production cost and the labor intensity during assembly (only two lower bottom rods 23 need to be assembled).

[0068] For further information, see Figure 6 and Figure 7 In the unfolded state, the central axes of two non-adjacent upper bottom rods 21 coincide; the four upper bottom rods 21 divide the bottom of the child bed into two first areas 40 and two second areas 50, the first area 40 is adjacent to the second area 50, and the angle between the two upper bottom rods 21 used to form the first area 40 is smaller than the angle between the two upper bottom rods 21 used to form the second area 50; each of the two bottom rod groups 20 provided with the lower bottom rod 23 has a synchronization rod 22, the synchronization rod 22 is in the second area 50 and the synchronization 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 synchronization rods 22 are staggered.

[0069] In the present embodiment, each of the two groups of bottom rod groups 20 provided with lower bottom rods 23a, 23b and extending in the same direction has a synchronization rod 22a, 22b respectively, and the two synchronization rods 22a, 22b (the synchronization rods 22a, 22b provided in the bottom rod group 20 provided with lower bottom rods 23a, 23b) are respectively arranged on the opposite sides of the two lower bottom rods 23a, 23b, that is, the two synchronization 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 lower bottom rods 23a, 23b and extending in the same direction can cooperate with each other to improve the uniformity of the weight counterweight and the supporting strength of the children's bed. On this basis, the two synchronization rods 22a, 22b arranged in a unilateral staggered combination can further improve the force balance of the children's bed base. Furthermore, compared with two synchronization rods 22 provided on both sides of each bottom rod group, this embodiment can save materials, reduce weight and assembly workload while ensuring the structural stress and stability of the children's bed; whereas if the two synchronization rods 22a, 22b are provided on the same side of the two lower bottom rods 23a, 23b, it has been tested that the stress on the base is not as balanced as that of a unilateral staggered setting, and after a period of use, there is a tendency to tilt toward the other side of the two lower bottom rods 23a, 23b.

[0070] It should be noted that, in the other two groups of bottom rod groups 20 that do not have the lower bottom rod 23, the number and arrangement positions of the synchronization rods 22 can be arranged accordingly according to the actual needs of the children's bed; for example, the synchronization rod 22 is arranged in the second zone 50. The specific effects are detailed in the aforementioned embodiments and will not be repeated here.

[0071] See also Figure 4 In one embodiment, when in the unfolded state, the upper bottom bar 21 is arranged substantially horizontally; in the same bottom bar group 20 , the vertical distance between the upper bottom bar 21 and the lower bottom bar 23 gradually increases from the leg cover 31 toward the connecting support 10 .

[0072] The lower bottom rod 23 is arranged to be inclined. When the child bed is in use, the lower bottom rod 23 has a good supporting effect, thereby effectively improving the stability of the child bed.

[0073] See also Figure 8 In one embodiment, the upper support 11 includes a hinge portion 111 and a sliding portion 112, and the sliding portion 112 is arranged at the bottom of the hinge portion 111; the lower support 12 is sleeved on the sliding portion 112, and the hinge portion 111 is used to be hinged with the upper bottom rod 21 and the lower bottom rod 23; a locking structure 60 is provided 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 portion 112 is provided with a receiving groove 1121, and the driving block 61 is slidably connected to the receiving groove 1121, The groove wall of the accommodating groove 1121 is provided with an avoidance opening 1122; the locking block 62 is rotatably set at the groove bottom of the accommodating groove 1121, and a driving hole 621 is provided on the surface of the locking block 62; the driving rod 63 is fixed to one end of the driving block 61 close to the locking block 62, and the driving rod 63 is inserted into the driving hole 621; when the driving block 61 drives the driving rod 63 to slide in the accommodating 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 and exit the avoidance opening 1122.

[0074] In this embodiment, the lower support 12 is sleeved on the sliding portion 112, and the lower support 12 can slide along the sliding portion 112, which is beneficial to the stable movement of the lower support 12. There will be no shaking between the lower support 12 and the sliding portion 112, which effectively improves the smoothness of the children's bed when it is stored.

[0075] In this embodiment, a locking structure 60 is further provided between the lower support 12 and the upper support 11. 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 to ensure that there is no relative movement between the two, thereby ensuring the stability of the child bed when unfolded and improving the safety of use; 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 connection 112 through the avoidance opening 1122, and abuts against the bottom of the lower support 12. At this time, the lower support 12 and the upper support 11 are relatively stationary; when the child bed needs to be stored, the driving block 61 is pulled upward, and 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 connection 112 to realize the storage operation of the child bed. The structure is simple and easy to use.

[0077] On the other hand, the present application also relates to a children's bed, comprising any one of the aforementioned base structures, and the children's bed also includes a foldable fence rod 70 arranged on the top of the leg rod 32.

[0078] The technical solution provided in the embodiment of the present application is intended to hinge one end of the synchronization rod 22 to the upper base rod 21 and the other end to the bottom of the lower support 12, and the upper base 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 synchronization rod 22 is large, that is, the length of the synchronization rod 22 will be longer, which can facilitate the installation operation of the assembler during assembly; the synchronization rod 22 can more conveniently drive the lower support 12, so that the lower support 12 and the upper support 11 move more smoothly in opposite directions, thereby improving the smoothness of the storage of the child bed and effectively improving the storage efficiency of the child bed; and during the storage process of the child bed, the longer synchronization rod 22 requires less driving force.

[0079] In the various embodiments of the present application, if there is no special explanation and logical conflict, the terms or descriptions between different embodiments are consistent and can be referenced to each other, and the technical features in different embodiments can be combined to form new embodiments according to their inherent logical relationships. In the present application, "at least one" means one or more, and "more" means two or more.

[0080] It is understood that the various numbers involved in the embodiments of the present application are only for the convenience of description and are not used to limit the scope of the embodiments of the present application. The size of the sequence number of the above-mentioned processes does not mean the order of execution, and the execution order of each process should be determined by its function and internal logic.

[0081] The base structure and children's bed provided in the embodiments of the present application are introduced in detail above. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the present application and its core ideas. At the same time, for those skilled in the art, according to the ideas of the present application, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A base structure, characterized in that: include: A connecting support, comprising an upper support and a lower support slidably connected to the upper support; A bottom rod group is arranged at intervals along the circumference of the connecting support, and the bottom rod group includes an upper bottom rod and a synchronous rod; and A bed leg assembly, comprising a leg cover and a leg rod plugged into the leg cover; Wherein, one end of the upper bottom rod is hinged to the top peripheral side of the upper support, and the other end is hinged to the leg cover; At least one of the bottom rod groups further comprises a lower bottom 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 synchronization rod is hinged to the bottom peripheral side of the lower support, and the other end is hinged to one end of the upper bottom rod close to the upper support.

2. The base structure according to claim 1, characterized in that: In the unfolded state, in the same bottom bar group, the hinge point between the lower bottom bar and the upper support is marked as point G1, the hinge point between the upper bottom bar and the upper support is marked as point G2, the hinge point between the lower bottom bar and the leg cover is marked as point G3, and the hinge point between the upper bottom bar and the leg cover is marked as point G4; Wherein, in the horizontal direction, point G1 is located on the side of point G2 close to the middle of the upper support, and point G3 is located on the side of point G4 away from the leg rod; or, In the horizontal direction, point G1 is located on a side of point G2 away from the middle of the upper support, and point G3 is located on a side of point G4 close to the leg rod.

3. The base structure according to claim 1, characterized in that: In the half-folded state, the leg rods are arranged at an angle with respect to the vertical direction, and the distance between the bottoms of two adjacent leg rods is smaller than the distance between the tops of the two adjacent leg rods.

4. The base structure according to claim 1, characterized in that: In the unfolded state, the central axes of two non-adjacent upper bottom bars coincide with each other; the four upper bottom bars divide the bottom of the child bed into two first areas and two second areas, the first areas are adjacent to the second areas, and the angle between the two upper bottom bars used to form the first areas is smaller than the angle between the two upper bottom bars used to form the second areas; The number of the synchronization rod in each bottom rod group is one, the synchronization rod is in the second zone and the synchronization rod is connected to the rod body surface of the upper bottom rod close to the second zone.

5. The base structure according to claim 1, characterized in that: The lower bottom rods are provided in two groups of the bottom rod groups, and the lower bottom rods are arranged in two non-adjacent groups of the bottom rod groups.

6. The base structure according to claim 5, characterized in that: In the unfolded state, the central axes of two non-adjacent upper bottom bars coincide with each other; the four upper bottom bars divide the bottom of the child bed into two first areas and two second areas, the first areas are adjacent to the second areas, and the angle between the two upper bottom bars used to form the first areas is smaller than the angle between the two upper bottom bars used to form the second areas; Each of the two bottom rod groups provided with the lower bottom rod has a synchronization rod, which is located in the second area and connected to the rod body surface of the upper bottom rod close to the second area, so that the two synchronization rods are staggered.

7. The base structure according to claim 1, characterized in that: In the unfolded state, the upper and lower rods are arranged substantially horizontally; In the same bottom rod set, the distance between the upper bottom rod and the lower bottom rod in the vertical direction gradually increases from the leg sleeve toward the connecting support.

8. The base structure according to claim 1, characterized in that: The upper support includes a hinged portion and a sliding portion, wherein the sliding portion is arranged at the bottom of the hinged portion; the lower support is sleeved on the sliding portion, and the hinged portion is used for hinged connection with the upper bottom rod and the lower bottom rod.

9. The base structure according to claim 8, characterized in that: A locking structure is provided between the upper support and the lower support, and the locking structure comprises a driving block, a locking block and a driving rod; The sliding portion is provided with a receiving groove, the driving block is slidably connected 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 accommodating groove, and a driving hole is provided on the surface of the locking block; The driving rod is fixed to one end of the driving block close to the locking block, and the driving rod is inserted into the driving hole; When the driving block drives the driving rod to slide in the accommodating groove, the driving rod drives the locking block to rotate through the driving hole, so that the locking block can selectively enter and exit the avoidance opening.

10. A children's bed, characterized in that: Comprising the base structure as claimed in any one of claims 1 to 9, the children's bed also includes a foldable fence rod arranged on the top of the leg rod.

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