CN113180411B

CN113180411B - Foldable children bed frame and children folding bed

Info

Publication number: CN113180411B
Application number: CN202110600957.XA
Authority: CN
Inventors: 胡杰
Original assignee: Dongguan Jinwang Children Products Co ltd
Current assignee: Dongguan Jinwang Children Products Co ltd
Priority date: 2021-05-31
Filing date: 2021-05-31
Publication date: 2023-05-02
Anticipated expiration: 2041-05-31
Also published as: CN113180411A

Abstract

The invention discloses a foldable children bed frame, which at least has an unfolding state and a folding state and comprises an upper frame, a plurality of groups of side brackets, a bottom frame and a linkage assembly; when in an unfolding state, the upper frame rod assemblies enclose a fixed polygonal frame, each group of side brackets and the upper frame rod assemblies opposite to the side brackets jointly form a fixed inverted isosceles triangle frame, the base angle assemblies are positioned at the vertex angle positions of the isosceles triangle frame, and the base frame unfolds the base angle assemblies towards a direction far away from the center; when in a folding state, the underframe folds towards the center and drives the bottom corner assembly to move towards the center, the bottom corner assembly drives the lower end of the side rod piece to move towards the center of the lower part, and the upper end of the side connecting rod drives the top corner assembly and the upper frame rod assembly to move towards the center of the upper part through the linkage assembly, so that the whole foldable children bed frame is folded. The invention also discloses a child folding bed. The invention has the advantages of convenient folding, stable and safe folding process, capability of avoiding damaging the flexible fabric as much as possible and prolonging the service life.

Description

Foldable children bed frame and children folding bed

Technical Field

The invention relates to the technical field of folding beds, in particular to a foldable child bed frame and a child folding bed.

Background

The existing baby folding bed is complex to operate due to structural reasons during the folding process, and has excessive operation steps.

Chinese patent application publication No. CN200941953Y discloses a foldable infant bed frame, which can be quickly folded by one key. But due to the irrational nature of the structure. As shown in fig. 6, during the folding process, the folding process is not stable enough, occupies a large volume, and has sharp corners to rapidly protrude outward. After long-term use, the flexible fabric coated outside the folding bedstead is easy to wear, and operators are easy to strike or scratch in the folding process, so that the folding bedstead is inconvenient to use.

Therefore, it is necessary to design a foldable child bed frame and a child folding bed which are convenient to fold, stable and safe in folding process, and capable of avoiding damaging flexible woven fabrics as much as possible and prolonging service life.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provide a foldable children bed frame and a folding bed which are convenient to fold and stable in folding process.

The technical scheme of the invention provides a foldable children bed frame, which at least has an unfolding state and a folding state and comprises an upper frame, a plurality of groups of side brackets, a bottom frame and a linkage assembly;

the upper frame includes: the upper frame rod assemblies are sequentially connected end to end through the vertex angle assemblies;

each set of side brackets includes: two side rod pieces with the lower ends connected through bottom corner components, and the upper ends of the two side rod pieces are respectively and movably connected with the two adjacent top corner components;

the underframe is connected with a plurality of base angle components;

the linkage assembly is arranged between any of the vertex angle assemblies and the upper frame rod assembly and the side bracket which are connected with the vertex angle assembly;

when the base angle assembly is in the unfolding state, the upper frame rod assemblies enclose a fixed polygonal frame, each group of side brackets and the upper frame rod assemblies opposite to the side brackets jointly form a fixed inverted isosceles triangle frame, the base angle assemblies are positioned at the vertex angle positions of the isosceles triangle frame, and the base frame unfolds the base angle assemblies towards the direction far away from the center;

when the folding state is achieved, the underframe is folded towards the center and drives the bottom corner assembly to move towards the center, the bottom corner assembly drives the lower ends of the side rod members to move towards the center of the lower portion, and the upper ends of the side connecting rods drive the top corner assembly and the upper frame rod assembly to move towards the center of the upper portion through the linkage assembly, so that the whole foldable child bed frame is folded.

Further, each upper frame rod assembly comprises two sub rods connected through a shoulder assembly, the two sub rods can be switched between a folded state and an unfolded state, and the linkage assembly is connected among the sub rods, the side rod pieces and the vertex angle assembly;

when the two sub-rods are in the unfolded state, the two sub-rods are positioned on the same straight line along the transverse direction;

in the folded state, the shoulder assembly moves downward in a vertical direction relative to the split lever.

Further, the linkage assembly comprises a first connecting rod, a second connecting rod, a third connecting rod, a fourth connecting rod and a guide post; the guide post is arranged on any vertex angle component and can lift along the vertical direction, one end of the first connecting rod is hinged to the lifting end of the guide post, the middle section of the first connecting rod is hinged to two side rod pieces connected with the vertex angle component, the other end of the first connecting rod is hinged to one end of the third connecting rod and one end of the fourth connecting rod, and the other end of the third connecting rod is hinged to two branch rods connected with the vertex angle component.

Further, the linkage assembly comprises a first connecting rod, a third connecting rod and a guide post, wherein the guide post is arranged on any of the vertex angle assemblies and can be lifted along the vertical direction, one end of the first connecting rod is hinged to the side rod piece, the other end of the first connecting rod is hinged to the third connecting rod, and the other end of the third connecting rod is hinged to the sub-rod which is adjacent to the side rod piece and is connected to the vertex angle assemblies.

Further, in the folded state, the hinge parts of the first connecting rod and the third connecting rod are folded upwards along the vertical direction, the hinge parts of the second connecting rod and the fourth connecting rod are folded upwards along the vertical direction, and the included angle between the first connecting rod and the guide post and between the second connecting rod and the guide post is reduced.

Further, the chassis includes: the bottom corner assembly comprises a plurality of bottom rod pieces and an unlocking piece, wherein one ends of the bottom rod pieces are respectively connected with the unlocking piece, and the other ends of the bottom rod pieces are connected with the bottom corner assembly;

when the unlocking piece is in the unfolding state, the unlocking piece is positioned at the locking position, and the plurality of bottom rod pieces unfold the bottom corner assembly towards a direction away from the center;

when the folding state is achieved, the unlocking piece is located at the unlocking position, and after the unlocking piece is pulled upwards, the unlocking piece drives the bottom rod piece to rotate relative to the unlocking piece and drives the bottom angle assembly to move towards the center.

Further, the underframe also comprises a base and a pull ring, wherein the unlocking piece is arranged in the base, the pull ring is arranged on the upper surface of the base, and the base is hinged with one end of the bottom rod piece;

when the pull ring is pulled upwards, the pull ring drives the base to move upwards, the base drives a plurality of bottom rod pieces to turn upwards, and the bottom rod pieces drive the bottom corner assembly to move towards the center.

Further, the device also comprises an auxiliary supporting rod, wherein the inner end of the auxiliary supporting rod is hinged with the base;

when the auxiliary support rod is in the unfolding state, the outer end of the auxiliary support rod is in contact with the ground;

when the auxiliary support rod is in the folded state, the inner end of the auxiliary support rod is driven by the base to move upwards.

The invention also provides a folding bed for children, which comprises the flexible woven fabric and the foldable children bed frame, wherein the flexible woven fabric is at least partially sleeved outside the foldable children bed frame.

Further, the flexible fabric comprises an upper layer cloth pocket and a lower layer cloth pocket, wherein the upper layer cloth pocket is sleeved outside the upper frame rod assembly and the linkage assembly, and the lower layer cloth pocket is suspended on the inner sides of the side rod members and the bottom corner assemblies.

After the technical scheme is adopted, the method has the following beneficial effects:

the foldable children bed frame in an embodiment of the invention is convenient to fold and the folding process is more stable.

According to the child folding bed in the other embodiment of the invention, a convex sharp corner structure is not generated in the folding process, so that the abrasion to flexible woven fabrics is reduced, and the service life of the child folding bed is prolonged.

Drawings

The present disclosure will become more readily understood with reference to the accompanying drawings. It should be understood that: the drawings are for illustrative purposes only and are not intended to limit the scope of the present invention. In the figure:

FIG. 1 is an expanded view of a folding bed frame according to an embodiment of the present invention;

FIG. 2 is an expanded view of a folding bed frame according to another embodiment of the present invention;

FIG. 3 is an expanded view of a folding bed according to an embodiment of the present invention;

FIG. 4 is a state diagram showing a folding process of the folding bed frame according to an embodiment of the present invention;

fig. 5 is a folding state diagram of a folding bed frame according to an embodiment of the present invention;

fig. 6 is a schematic diagram of a folding process of a foldable infant bed frame according to the prior art.

Reference numeral lookup tables of fig. 1-5:

upper frame 1: upper frame bar assembly 11, top angle assembly 12, shoulder assembly 111, and sub-bar 112;

side stand 2: a bottom corner assembly 21, side pole pieces 22;

chassis 3: bottom bar 31, unlocking piece 32, base 33, pull ring 34, clamping groove 331 and auxiliary clamping groove 332;

linkage assembly 4: a first link 41, a second link 42, a third link 43, a fourth link 44, and a guide post 45.

Part of the reference numeral lookup table of fig. 6:

the connection 31', the bar 22', the bar 23'.

Detailed Description

Specific embodiments of the present invention will be further described below with reference to the accompanying drawings.

It is to be readily understood that, according to the technical solutions of the present invention, those skilled in the art may replace various structural modes and implementation modes with each other without changing the true spirit of the present invention. Accordingly, the following detailed description and drawings are merely illustrative of the invention and are not intended to be exhaustive or to limit the invention to the precise form disclosed.

Terms of orientation such as up, down, left, right, front, rear, front, back, top, bottom, etc. mentioned or possible to be mentioned in the present specification are defined with respect to the configurations shown in the drawings, which are relative concepts, and thus may be changed according to different positions and different use states thereof. These and other directional terms should not be construed as limiting terms.

Embodiment one:

as shown in fig. 1, the foldable child bed frame at least has an unfolding state and a folding state, and comprises an upper frame 1, a plurality of groups of side brackets 2, a bottom frame 3 and a linkage assembly 4;

the upper frame 1 includes: the plurality of upper frame rod assemblies 11 and the vertex angle assembly 12 are connected end to end in sequence through the vertex angle assembly 12;

each set of side brackets 2 comprises: two side rod pieces 22 with the lower ends connected through bottom corner components 21, and the upper ends of the two side rod pieces 22 are respectively movably connected with two adjacent top corner components 12;

the underframe 3 is connected with a plurality of base angle assemblies 21;

the linkage assembly 4 is arranged between the arbitrary vertex angle assembly 12 and the upper frame rod assembly 11 and the side bracket 2 which are connected with the arbitrary vertex angle assembly;

when in an unfolding state, the upper frame rod assemblies 11 enclose a fixed polygonal frame, each group of side brackets 2 and the upper frame rod assemblies 11 opposite to the side brackets form a fixed inverted isosceles triangle frame together, the base angle assemblies 21 are positioned at the vertex angle positions of the isosceles triangle frame, and the base frame 3 unfolds the base angle assemblies 21 towards a direction far away from the center;

in the folded state, the underframe 3 is folded towards the center and drives the bottom corner assembly 21 to move towards the center, the bottom corner assembly 21 drives the lower end of the side rod 22 to move towards the center of the lower part, and the upper end of the side connecting rod 22 drives the top corner assembly 21 and the upper frame rod assembly 11 to move towards the center of the upper part through the linkage assembly 4, so that the whole foldable children bed frame is folded.

Specifically, the upper frame 1 is located at the upper portion of the foldable child's bedframe, and the upper frame bar assembly 11 has four sets. In the unfolded state, as shown in fig. 1, the four groups of upper frame rod assemblies 11 are positioned on the same horizontal plane, and enclose a rectangular frame structure. Adjacent upper frame bar assemblies 11 are connected by corner angle assemblies 12, corner angle assemblies 12 being located at the four corners of the rectangular frame structure. In the collapsed state, as shown in fig. 5, the four corner angle assemblies 12 are collapsed together and the four sets of upper frame bar assemblies 11 are collapsed in a vertical direction.

As shown in FIG. 2, in the deployed state, the sidebar 22 is in a vertical plane. The bottom corner assemblies 21 longitudinally correspond to the middle of each upper frame rail assembly 11, and two side rail members 22 extend obliquely upward from the bottom corner assemblies 21 in the longitudinal plane and are connected to the two top corner assemblies 12, respectively. Each set of side brackets 2 and the opposite upper frame bar assembly 11 together form a fixed inverted isosceles triangle frame, the base angle assembly 21 is located at the vertex angle position of the isosceles triangle frame, and the isosceles triangle frames form a stable supporting structure, so that the unfolded bed frame is more stable. Four base corner assemblies 21 are used to contact the floor to support the entire bed frame.

As shown in fig. 1, the chassis 3 is also in contact with the ground in the unfolded state, and plays a certain supporting role. The underframe 3 is positioned at the bottom of the bed frame and is connected with four base angle assemblies 21, the four base angle assemblies 21 are positioned at the four directions of the outer side of the underframe 3, the underframe 3 is connected with the base angle assemblies 21, and in the unfolded state, the underframe 3 pushes the four base angle assemblies 21 to be unfolded towards the direction away from the center. In the folded state, as shown in fig. 4, the chassis 3 drives the base angle assembly 21 to move toward the center.

As shown in fig. 1, the interlocking unit 4 is disposed between any of the corner units 12 and the upper frame bar unit 11 and the side brackets 2 connected thereto. In the folding process, the side rod pieces 22 drive the vertex angle components 12 and the upper frame rod components 11 to move towards the center and fold through the linkage components 4, and the linkage components 4 play a role in driving folding; meanwhile, in the folding process, the linkage assembly 4 is connected with the top angle assembly 12, the upper frame rod assembly 11 and the side rod members 22 at the same time, so that the function of stabilizing the folding process is achieved, and shaking in the folding process is reduced.

Compared with the prior art, as shown in fig. 6, the connecting piece 31' is only connected with the rod pieces 22', 23', so that the stability is poor, and the connecting piece is easy to shake in the folding process.

As shown in fig. 4, in the folding process of the present embodiment, the chassis 3 is lifted upwards, the chassis 3 drives the four bottom corner assemblies 21 to move together in the lateral direction toward the center, the four bottom corner assemblies 21 drive the eight side bar members 22 to move together in the lateral direction toward the center, the side bar members 22 drive the four top corner assemblies 12 to move together in the lateral direction toward the center through the linkage assembly 4, and simultaneously drive the folding of the upper frame bar assembly 11.

Alternatively, the upper frame bar assembly 11 is not limited to four groups, but may be three groups or five groups, or more groups, and when the upper frame bar assembly 11 is in the unfolded state, a triangular frame structure, or a pentagonal frame structure can be formed, and the side brackets 2 and the linkage assemblies 4 include corresponding numbers.

Further, each upper frame bar assembly 11 includes two sub-bars 112 connected by a shoulder assembly 111, and the two sub-bars 112 can be switched between folded and unfolded states, and the interlocking assembly 4 is connected between the sub-bars 112, the side bar members 22 and the top corner assembly 12;

in the unfolded state, the two sub-rods 112 are positioned on the same straight line along the transverse direction;

in the collapsed state, the shoulder assembly 111 moves downward in a vertical direction relative to the split lever 112.

Specifically, as shown in fig. 4, in the folding process of the upper frame rod assembly 11, the linkage assembly 4 drives the two sub-rods 112 to fold down along the vertical direction, and meanwhile, the upper frame rod assembly 11 is driven by the top angle assembly 12 to fold towards the center. The upper frame bar assembly 11 does not form a convex pointed structure outwardly or inwardly throughout the collapsing process.

As shown in fig. 3, when the flexible fabric 6 is wrapped around the bed frame, the upper frame rod assembly 11 is folded downward only along the longitudinal direction relative to the flexible fabric 6 in the folding process, so that the outer flexible fabric 6 is not scratched or worn.

In the expanded state of fig. 3, the flexible fabric 6 is stretched by the frame. As the top corner assembly 12 moves toward the center, the flexible fabric 6 is loosened and gathered together, and the upper frame bar assembly 11 is not easily damaged when it is folded down in the longitudinal direction.

As shown in fig. 5, in the folded state of the folding bed frame, the folding bed frame is folded to a minimum volume, the four corner modules 12 are closed together, the eight side bars 22 are also closed together, the four bottom corner modules 21 are closed inward, the bottom frame 3 is lifted up to the inner sides of the plurality of side bars 22, the upper frame bar module 11 is folded down between the side bars 22, and the whole bed frame is folded into a vertical column in the longitudinal direction.

In the children's bed frame in this embodiment, since the upper frame rod assembly 11 is folded downward along the vertical direction during the folding process, no protruding sharp corner structure is generated during the folding process, no abrasion is caused to the flexible fabric 6, and the service life of the flexible fabric is prolonged.

Alternatively, the shoulder assembly 111 may be made of plastic with some structural strength. In the deployed state, the shoulder assembly 111 serves to connect and support the score bar 112 such that the score bar 112 remains laterally extended, tightening the flexible fabric 6.

In the folded state, as shown in fig. 5, the shoulder assembly 111 moves downward, the inner ends of the two sub-rods 112 move downward together, and the outer ends move toward the center with the corner assembly 12. The shoulder assembly 111 is not easily worn by the flexible cloth 6 due to the smooth surface of the plastic product even though it rubs against the flexible cloth 6 during the downward movement in the longitudinal direction.

Further, the linkage assembly 4 includes a first link 41, a second link 42, a third link 43, a fourth link 44, and a guide post 45; the guide post 45 is arranged on any vertex angle component 12 and can be lifted along the vertical direction, one ends of the first connecting rod 41 and the second connecting rod 42 are respectively hinged with the lifting end of the guide post 45, the middle sections of the first connecting rod 41 and the second connecting rod 42 are respectively hinged with two side rod pieces 22 connected with the vertex angle component 12, the other ends of the first connecting rod 41 and the second connecting rod 42 are respectively hinged with one ends of the third connecting rod 43 and the fourth connecting rod 44, and the other ends of the third connecting rod 43 and the fourth connecting rod 44 are respectively hinged with two sub-rods 112 connected with the vertex angle component 12.

Specifically, as shown in fig. 1-2, the set of linkage assemblies 4 includes a first link 41, a second link 42, a third link 43, a fourth link 44, and a guide post 45;

the guide posts 45 are longitudinally arranged, the upper ends of the guide posts 45 are fixedly connected with the top angle assembly 12, and the lower ends of the guide posts 45 are hinged with one ends of the first connecting rod 41 and the second connecting rod 42;

the other end of the first connecting rod 41 is hinged with one end of a third connecting rod 43, and the other end of the third connecting rod 43 is hinged with a branch rod 112;

the other end of the second connecting rod 42 is hinged with one end of a fourth connecting rod 44, and the other end of the fourth connecting rod 44 is hinged with the other branch rod 112;

the middle portions of the first and

second links

41 and 42 are hinged to the two side bar members 22, respectively.

Optionally, the top corner module 12 is made of plastic and is in a rounded right angle shape, and the inner wall of the top corner module 12 is hinged with the sub-bars 112 and the side bar members 22 and is fixedly connected with the guide posts 45, and the outer wall is smooth, so that the anti-collision function is achieved.

As shown in fig. 1-2, in the unfolded state of the corner module 12, the guide post 45 extends longitudinally downward, the left side of the guide post 45 connects the first link 41 and the third link 43, the right side of the guide post 45 connects the second link 42 and the fourth link 44, the first link 41 connects with the left side bar member 22, the second link 42 connects with the right side bar member 22, the third link 43 connects with the left side bar 112, and the fourth link 44 connects with the right side bar 112.

In the unfolded state, the linkage assembly 4 is located on two longitudinal planes, the first connecting rod 41 and the third connecting rod 43 are located on the longitudinal planes of the side rod pieces 22 on the left side, the first connecting rod 41, the third connecting rod 43, the guide post 45 and the sub-rod 112 are approximately enclosed into a triangular structure, and the triangular structure is connected with the side rod pieces 22 and is divided into two triangular structures; the third link 43 and the fourth link 44 are located in the longitudinal plane of the right side bar member 22, and the third link 43, the fourth link 44, the guide post 45 and the sub-bar 112 generally enclose a triangular structure which is connected to the side bar member 22 and is also divided into two triangular structures. The linkage assembly 4 has the function of supporting the side rod pieces 22 and the sub-rods 112 on two sides, so that the unfolded structure is more stable, is not easy to deform and collapse, and simultaneously, the structure in the folding process is more stable.

As shown in fig. 4, during the folding process, since the guide post 45 is always folded along the longitudinal direction, the first connecting rod 41 and the third connecting rod 43 are folded on the longitudinal plane where the left side rod piece 22 is located, and the third connecting rod 43 and the fourth connecting rod 44 are folded on the longitudinal plane where the right side rod piece 22 is located, the third connecting rod 43 and the fourth connecting rod 44 are not protruded outwards, so that abrasion to the flexible fabric 6 is avoided, and inconvenience of folding operation caused by collision to an operator during the folding process is avoided.

Further, as shown in fig. 5, in the folded state, the hinge of the first link 41 and the third link 43 is folded upward in the longitudinal direction, the hinge of the second link 42 and the fourth link 44 is folded upward in the longitudinal direction, and the included angle between the first link 41 and the second link 42 and the guide post 45 is reduced, so that the folded volume is smaller.

Further, as shown in FIG. 1, the first and

second links

41 and 42 are curved bars, and the sidebar 22 is hinged to the bends of the first and

second links

41 and 42.

Alternatively, the linkage assembly 4 may further include only the first link 41, the third link 43, and the guide post 45, where the guide post 45 is provided on any of the corner assemblies 12 and can be lifted in the vertical direction, and one end of the first link 41 is hinged to the side bar 22, the other end is hinged to the third link 43, and the other end of the third link 43 is hinged to the sub-bar 112 adjacent to the side bar 22 and connected to the corner assembly 12. That is, the linkage assembly 4 can only connect the sub-rod 112 and the side rod member 22 on one side, and the sub-rod 112 and the side rod member 22 on the other side can be folded under the driving of the vertex angle assembly 12.

Further, the chassis 3 includes a plurality of bottom bars 31 and an unlocking member 32, one ends of the plurality of bottom bars 31 are respectively connected with the unlocking member 32, and the other ends of the plurality of bottom bars 31 are connected with the bottom corner assembly 21;

in the unfolded state, the unlocking piece 32 is positioned at the locking position, and the plurality of bottom rod pieces 31 unfold the bottom corner assembly 21 towards a direction away from the center;

when in the folded state, the unlocking piece 32 is located at the unlocking position, and after the unlocking piece 32 is pulled upwards, the unlocking piece 32 drives the bottom rod piece 31 to rotate relative to the unlocking piece 32 and drives the bottom corner assembly 21 to move towards the center.

Specifically, as shown in fig. 1, the bottom bar members 31 have four outer ends respectively connected to the four bottom corner assemblies 21, and the unlocking members 32 are connected to the inner ends of the four bottom bar members 31.

In the unfolded state, the four bottom bars 31 extend in the horizontal direction and push the bottom corner assembly 21 in a direction away from the center;

in the folded state, the unlocking member 32 moves upwards to drive the inner end of the bottom rod member 31 to rotate upwards, and the outer end of the bottom rod member 31 drives the four bottom corner assemblies 21 to move towards the center.

Further, as shown in fig. 1, the chassis 3 further includes a base 33 and a pull ring 34, the unlocking member 32 is disposed in the base 33, the pull ring 34 is mounted on the upper surface of the base 33, and the base 33 is hinged with one end of the bottom rod member 31;

when the pull ring 34 is pulled upwards, the pull ring 34 drives the base 33 to move upwards, the base 33 drives the plurality of bottom rod pieces 31 to turn upwards, and the bottom rod pieces 31 drive the bottom corner assembly 21 to move towards the center.

Specifically, the pull ring 34 is located at the top of the base 33, four slots 331 extend from the side of the base 33 toward four directions, and the four slots 331 are respectively connected to four bottom rods 31, and the bottom rods 31 are connected to the bottom corner assembly 21.

As shown in fig. 1, when the base 33 contacts the ground, the clamping groove 331 pushes the bottom bar 31 to extend in the lateral direction and limit the bottom bar 31 to push the bottom corner assemblies 21 to the farthest position, so that the four bottom corner assemblies 21 are spread, the bottom corner assemblies 21 drive the side bar 22, the side bar 22 drives the top corner assemblies 12 to move to the farthest four corners through the linkage assembly 4, and simultaneously drives the upper frame 1 to spread, so that the full spread of the bed frame is realized.

When the folding bed frame needs to be folded, a user manually pulls the middle pull ring 34, the pull ring 34 drives the base 33 to be lifted upwards, the base 33 drives the inner end of the bottom rod piece 31 to move upwards, and the outer end of the bottom rod piece 31 drives the four support legs 2 to move towards the center, so that the folding bed frame is folded.

During folding, the bottom bar 31 rotates relative to the base 33 and the bottom corner assembly 21, and the clamping groove 331 does not limit the rotation of the bottom bar 31.

Preferably, the device further comprises an auxiliary supporting rod (not shown), wherein the inner end of the auxiliary supporting rod is hinged with the base 33;

in the unfolding state, the outer end of the auxiliary supporting rod is contacted with the ground;

in the folded state, the inner end of the auxiliary supporting rod is driven by the base 33 to move upwards.

As shown in fig. 1, four auxiliary clamping grooves 332 are further extended from the side surface of the base 33, the auxiliary clamping grooves 332 are hinged to the inner ends of the auxiliary supporting rods, and the outer ends of the auxiliary supporting rods are in contact with the ground in the unfolded state, so as to assist in supporting the folding bed frame.

When in the folded state, the inner end of the auxiliary supporting rod is driven by the base 33 to move upwards, and the outer end of the auxiliary supporting rod is lifted in a suspended manner.

The foldable children bed frame in the embodiment can realize one-key folding, realizes rapid bed folding operation, and is more stable in folding process because the linkage assembly is connected with the vertex angle assembly, the side rod members and the sub rods. And because the linkage assembly and the upper frame rod assembly are folded along the vertical direction in the folding process, an outward or inward sharp angle structure cannot be generated, the damage to the flexible woven cloth is avoided, the inconvenience in the operation process of a user is avoided, and the service life is prolonged.

Embodiment two:

as shown in fig. 3, the folding bed comprises a flexible fabric 6, and further comprises a folding bed frame of the first embodiment and a modification thereof, wherein the flexible fabric 6 is at least partially sleeved outside the foldable child bed frame.

When in an unfolding state, the flexible fabric 6 is tightened by the foldable child bed frame to form a bib for the baby to lie down.

Further, as shown in fig. 3, the flexible fabric 6 includes an upper cloth bag 61 and a lower cloth bag 62, the upper cloth bag 61 is sleeved outside the upper frame bar assembly 11 and the interlocking assembly 4, and the lower cloth bag 62 is suspended inside the plurality of side bar members 22 and the bottom corner assembly 21.

The bib is divided into two layers by the flexible fabric 6, the upper cloth bag 61 is used for the baby to lie down, and the lower cloth bag 62 can be used for placing baby products. The upper cloth bag 61 and the lower cloth bag 62 can be communicated with each other, so that a game bed mode is formed.

The corner angle assembly 12 is made of plastic and functions as an anti-collision and also as the upper frame bar assembly 11 and the side brackets 2. The upper cloth bag 61 conceals the upper frame bar assembly 11, the upper half of the side bar member 22 and the interlocking assembly 4 inside thereof, thereby being beautiful and preventing the infant from being injured by the impact.

The lower half of the side bar 22 passes through the upper cloth bag 61, is positioned outside the lower cloth bag 62, and is connected with the bottom corner assembly 21.

When the lower cloth bag 62 is unfolded, the lower cloth bag 62 is suspended above the bottom corner 3, the base 33 of the bottom corner 3 plays a supporting role on the lower cloth bag 62, and the pull ring 34 can penetrate into the lower cloth bag 62, so that the user can operate conveniently.

In this embodiment, after the upper frame rod assembly 11 is folded down in the longitudinal direction, the flexible fabric of the upper layer pocket 61 is not stretched any more, and the shoulder assembly 111 is not easily worn. In the same way, the linkage assembly 4 is folded along the longitudinal direction in the folding process, so that the flexible fabric is not easy to wear.

The whole folding bed for children is in a state of shrinking from the periphery towards the center in the folding process, the outer side wall of the folding bed is always folded along a vertical plane, an outwards-protruding sharp corner structure cannot be generated, the phenomenon that an operator is bumped and damaged by flexible woven cloth is avoided, and the service life of the folding bed is prolonged.

What has been described above is merely illustrative of the principles and preferred embodiments of the present invention. It should be noted that several other variants are possible to those skilled in the art on the basis of the principle of the invention and should also be considered as the scope of protection of the present invention.

Claims

1. A foldable child's bedframe having at least an expanded state and a collapsed state, characterized by: comprises an upper frame, a plurality of groups of side brackets, a bottom frame and a linkage assembly;

the underframe is connected with a plurality of base angle components;

when the folding state is achieved, the underframe is folded towards the center and drives the bottom corner assembly to move towards the center, the bottom corner assembly drives the lower ends of the side rod members to move towards the center of the lower portion, the upper ends of the side rod members drive the top corner assembly and the upper frame rod assembly to move towards the center of the upper portion through the linkage assembly, and the upper frame rod assembly is folded along the vertical direction, so that the whole foldable child bedstead is folded.

2. The foldable child's bed frame of claim 1, wherein each of the upper frame bar assemblies comprises two split bars connected by a shoulder assembly, and wherein the two split bars are switchable between a folded and an unfolded state, the linkage assembly being connected between the split bars, the side bar members and the top corner assembly;

3. The foldable child's bed frame of claim 2, wherein the linkage assembly comprises a first link, a second link, a third link, a fourth link, and a guide post; the guide post is arranged on any vertex angle component and can lift along the vertical direction, one end of the first connecting rod is hinged to the lifting end of the guide post, the middle section of the first connecting rod is hinged to two side rod pieces connected with the vertex angle component, the other end of the first connecting rod is hinged to one end of the third connecting rod and one end of the fourth connecting rod, and the other end of the third connecting rod is hinged to two branch rods connected with the vertex angle component.

4. The foldable child's bed frame according to claim 2, wherein the linkage assembly comprises a first link, a third link and a guide post, the guide post being provided on any of the top corner assemblies and being capable of being lifted in a vertical direction, one end of the first link being hinged to the side bar member, the other end being hinged to the third link, the other end of the third link being hinged to the sub-bar adjacent to the side bar member and connected to the top corner assembly.

5. The foldable child's bed frame according to claim 3, wherein in the folded state, the hinge of the first link and the third link is folded upward in a vertical direction, the hinge of the second link and the fourth link is folded upward in a vertical direction, and an included angle between the first link and the second link and the guide post is reduced.

6. The foldable child's bed frame of claim 1, wherein the chassis comprises: the bottom corner assembly comprises a plurality of bottom rod pieces and an unlocking piece, wherein one ends of the bottom rod pieces are respectively connected with the unlocking piece, and the other ends of the bottom rod pieces are connected with the bottom corner assembly;

7. The foldable child's bed frame of claim 6, wherein the base frame further comprises a base and a pull ring, the unlocking member is provided in the base, the pull ring is mounted on the upper surface of the base, and the base is hinged with one end of the bottom bar member;

8. The foldable child's bed frame of claim 7, further comprising an auxiliary support bar, the inner end of the auxiliary support bar being hinged to the base;

9. A folding child bed comprising a flexible fabric, characterized in that it further comprises a foldable child bed frame according to any one of claims 1-8, said flexible fabric being at least partially sleeved outside said foldable child bed frame.

10. The folding bed for children according to claim 9, wherein the flexible fabric includes an upper cloth bag and a lower cloth bag, the upper cloth bag is sleeved outside the upper frame bar assembly and the interlocking assembly, and the lower cloth bag is hung inside the side bar members and the bottom corner assembly.