CN113317656B

CN113317656B - Folding bed

Info

Publication number: CN113317656B
Application number: CN202110598141.8A
Authority: CN
Inventors: 高翔; 顾轲辉
Original assignee: Goodbaby Child Products Co Ltd
Current assignee: Goodbaby Child Products Co Ltd
Priority date: 2021-05-31
Filing date: 2021-05-31
Publication date: 2022-08-02
Anticipated expiration: 2041-05-31
Also published as: CN113317656A

Abstract

The invention discloses a folding bed, which comprises a bed frame with an unfolding state and a folding state and a locking mechanism for locking the bed frame in the unfolding state, wherein the bed frame comprises an upper enclosing frame and at least three upright posts supported below the upper enclosing frame, the upper enclosing frame comprises a plurality of enclosing rods which are sequentially arranged along the circumferential direction, each enclosing rod comprises a first rod and a second rod which are connected along the length direction, one end part of the first rod is rotatably connected with one end part of the second rod, one upright post is arranged between any two adjacent enclosing rods, in any two adjacent enclosing rods, the other end part of the first rod of one enclosing rod is fixedly arranged at the upper part of the upright post, and the other enclosing rod can be relatively slidably arranged at the upper part of the upright post along the length extending direction of the other enclosing rod. The folding bed can be folded in the whole bed, the folding process is simple, and the space occupied after folding is small, so that the folding bed is convenient to store and transport.

Description

Folding bed

Technical Field

The invention relates to a folding bed.

Background

The existing child beds are mostly foldable in order to reduce the space occupied during storage and transportation. However, referring to the child bed disclosed in the publication No. CN 210124487U, most of the existing child beds can be only partially folded, still occupy a large storage space after being folded, and have complicated folding operation steps. On the premise of ensuring the use requirement of the bed frame, it is the endeavor of the technicians in this field to provide a folding bed for children, which can be completely folded, occupies a small space after being folded, and is simple and convenient to fold.

Disclosure of Invention

The invention aims to provide a novel folding bed.

In order to achieve the purpose, the invention adopts the technical scheme that: a folding bed comprises a bed frame with an unfolding state and a folding state and a locking mechanism for locking the bed frame in the unfolding state, wherein the bed frame comprises an upper enclosing frame and at least three upright rods supported below the upper enclosing frame, all the upright rods extend along the up-and-down direction, the upper enclosing frame comprises a plurality of enclosing rods which are sequentially arranged along the circumferential direction,

each enclosing rod comprises a first rod and a second rod which are connected along the length direction, one end part of the first rod is rotatably connected with one end part of the second rod, one upright rod is arranged between any two adjacent enclosing rods, the other end part of the first rod of one enclosing rod is fixedly arranged on the upper part of the upright rod in any two adjacent enclosing rods, the other enclosing rod can be arranged on the upper part of the upright rod in a relatively sliding way along the length extending direction of the other enclosing rod,

when the bedstead is in an unfolded state, the first rod and the second rod of the same enclosing rod extend along the same horizontal direction, all the enclosing rods are sequentially connected along the circumferential direction and enclosed to form a closed frame shape, and two adjacent upright rods are respectively arranged at two end parts of the same enclosing rod in the length direction; when the bedstead is in a folded state, two adjacent upright posts are positioned on the same first post, and the second post extends along the up-down direction and is mutually folded with the upright posts.

Preferably, the length of the second rod is greater than that of the first rod, and/or the lengths of the two second rods in two adjacent enclosing rods are different.

Preferably, the upper part of each vertical rod is provided with a through hole penetrating along the horizontal direction, and one of the two neighboring surrounding rods can be slidably arranged in the through hole along the length extending direction of the surrounding rod; preferably, a limiting member is further fixedly arranged at the outer end of the second rod, so that the vertical rod is located inside the limiting member on the surrounding rod.

Preferably, a stay bar mechanism for driving the two vertical rods to relatively approach or move away from each other is arranged between any two adjacent vertical rods.

Furthermore, each vertical rod comprises an upper rod and a lower rod which are connected in a sliding manner in the vertical direction, the stay bar mechanism comprises two stay bars which are mutually crossed and are connected at the crossed position in a rotating manner, the stay bars extend obliquely in the vertical direction, the upper end part of each stay bar is connected with the upper rod in one vertical rod in a rotating manner, and the lower end part of each stay bar is connected with the lower rod in the other vertical rod in a rotating manner.

Further preferably, an upper end of each of the struts is pivotally connected to an upper end of the upper beam and a lower end of the strut is pivotally connected to a lower end of the lower beam.

Further preferably, the upper boom includes the upper boom body and sets firmly in the upper boom seat on upper boom body top, the lower boom includes the lower boom body and sets firmly in the lower boom seat of lower boom body bottom, the upper boom body with the lower boom body slides and connects telescopically, two adjacent the surrounding rod sets up on the upper boom seat, the upper end of vaulting pole is connected with rotating on the upper boom seat, the lower tip of vaulting pole is connected with rotating on the lower boom seat.

In some embodiments, the brace mechanism includes two braces which cross each other and are rotatably connected at the crossing, the braces extend obliquely in the up-down direction, one end of each brace is rotatably connected to one of the uprights, and the other end of each brace is rotatably connected to a sliding member which is slidably provided on the other upright in the up-down direction, preferably, the sliding member is provided at the upper end of the brace, and the lower end of the brace is rotatably connected to the lower end of the upright.

In some embodiments, the bed frame further comprises a bottom supporting mechanism, the bottom supporting mechanism comprises a connecting seat assembly, a set of auxiliary supporting assemblies is arranged between each upright and the connecting seat assembly, the connecting seat assembly comprises an upper base and a lower base which are arranged up and down, the auxiliary supporting assemblies comprise a first supporting rod and a second supporting rod which are intersected with each other and rotatably connected at the intersection, the lower end part of the first supporting rod is rotatably connected to the lower part of the upright, and the upper part of the first supporting rod is rotatably connected to the upper base; the lower end of the second support rod is rotatably connected to the lower base, and the upper end of the second support rod can rotate relatively and can be arranged on the vertical rod in a relatively sliding manner along the length extension direction of the vertical rod.

Further preferably, the number of the surrounding rods is four, and the extending directions of two adjacent surrounding rods are perpendicular to each other when the bed frame is in the unfolded state.

Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages: the folding bed can be folded in the whole bed, the folding process is simple, and the space occupied after folding is small, so that the folding bed is convenient to store and transport.

Drawings

FIG. 1 is a schematic side view of the folding bed of the present invention in an unfolded state (embodiment I);

FIG. 2 is a schematic top view of the folding bed of the present invention in an expanded state (embodiment one);

FIG. 3 is a schematic three-dimensional view of the folding bed of the present invention in an unfolded state (embodiment I);

FIG. 4 is a schematic side view of the folding bed of the present invention when it is converted from the unfolded state to the folded state (embodiment one);

FIG. 5 is a schematic top view of the folding bed of the present invention as it is being converted from the unfolded state to the folded state (embodiment one);

FIG. 6 is a schematic three-dimensional view (embodiment one) of the folding bed of the present invention when it is converted from the unfolded state to the folded state;

FIG. 7 is a partially enlarged view (embodiment one) corresponding to position A in FIG. 4;

FIG. 8 is a schematic three-dimensional view of an upper stick base according to the present invention (embodiment one);

FIG. 9 is a schematic side view of the folding bed of the present invention in a folded state (embodiment one);

FIG. 10 is a schematic top view of a folding bed of the present invention in a folded state (embodiment one);

FIG. 11 is a schematic three-dimensional view of a folding bed of the present invention in a folded state (embodiment I);

FIG. 12 is a schematic side view of the folding bed of the present invention in an unfolded state (embodiment II);

FIG. 13 is a schematic three-dimensional view of the folding bed of the present invention in an unfolded state (example II);

FIG. 14 is a schematic side view of the folding bed of the present invention when it is converted from the unfolded state to the folded state (embodiment II);

FIG. 15 is a schematic three-dimensional view of the folding bed of the present invention when it is converted from the unfolded state to the folded state (embodiment II);

FIG. 16 is a schematic side view of a folding bed of the present invention in a folded state (example two);

FIG. 17 is a schematic three-dimensional view of a folding bed of the present invention in a folded state (example II);

FIG. 18 is a front view of the folding bed of the present invention in the unfolded state (example III);

FIG. 19 is a schematic side view of the folding bed of the present invention in an unfolded state (example III);

FIG. 20 is a three-dimensional perspective view of the folding bed of the present invention in an unfolded state (embodiment III);

FIG. 21 is a front view of the folding bed of the present invention when it is converted from the unfolded state to the folded state (embodiment III);

FIG. 22 is a schematic side view of the folding bed of the present invention when it is converted from the unfolded state to the folded state (embodiment III);

FIG. 23 is a front view of a folding bed of the present invention in a folded state (example three);

FIG. 24 is a schematic side view of a folding bed of the present invention in a folded position (embodiment three);

wherein: 1. a surrounding rod; 11. a first lever; 12. a second lever; 13. a limiting member; 2. erecting a rod; 20. a pole body of the vertical pole; 21. an upper pole body; 21A, an upper rod seat; 211. perforating; 22. a lower rod body; 22A, a lower rod seat; 3. a strut mechanism; 31. a stay bar; 4. a slider; 5. a connection seat assembly; 51. an upper base; 52. a lower base; 6. an auxiliary support assembly; 61. a first stay bar; 62. a second stay bar; a. a first rotational centerline.

Detailed Description

The technical solution of the present invention is further explained with reference to the drawings and the specific embodiments.

Example one

A folding bed, as shown in fig. 1 to 3, comprises a frame having an unfolded state and a folded state, and a locking mechanism (not shown) for locking the frame in the unfolded state. Specifically, the frame includes an upper enclosure, at least three uprights 2 supported below the upper enclosure, and a stay mechanism 3 provided between any adjacent two uprights 2 and for urging the two uprights 2 relatively close to or away from each other. In the unfolded state, the frame has a plurality of sides, each of which has two of the uprights 2, and a set of the strut mechanisms 3 arranged between the two uprights 2.

It should be noted that the locking mechanism (not shown) may adopt various prior arts, such as providing slotted holes between the rods, adjusting the positions of one or more groups of rods to align the slotted holes thereon, and inserting a lock pin into the slotted holes, so that the relative movement between one or more groups of rods is locked; further, for example, a spline is provided in the lever, and the lever is locked by locking a gear engaged with the spline, and the like. The type of the prior art and the location of the locking mechanism (not shown) are not limited as long as the locking mechanism (not shown) can maintain the bed frame in the unfolded state. The locking mechanism (not shown) may also be a novel locking mechanism, but is not the innovation of the present invention, and is not described herein.

Specifically, go up to enclose the frame and include that many that set gradually along circumference enclose pole 1, when the frame is in the expansion state, all enclose pole 1 and meet in proper order and enclose along circumference and establish and be confined frame type, in this embodiment, go up to enclose the frame and include four that set gradually along circumference and enclose pole 1, four enclose pole 1 and enclose and establish and form a quadrangle frame. In other embodiments, the number of the surrounding rods 1 can be three, and the three surrounding rods 1 surround to form a triangular frame; the number of the surrounding rods 1 can be five, and five surrounding rods 1 surround to form a pentagonal frame; the number of the surrounding rods 1 can also be six, seven, eight and the like.

Each enclosing rod 1 comprises a first rod 11 and a second rod 12 which are connected along the length direction, the length of the second rod 12 is larger than that of the first rod 11, and/or the lengths of the two second rods 12 in two adjacent enclosing rods 1 are different. In the present embodiment, the length of the second rod 12 is greater than that of the first rod 11, and the lengths of the two second rods 12 in the two adjacent girth rods 1 are equal. A vertical rod 2 is arranged between any two adjacent surrounding rods 1, and all the vertical rods 2 extend along the vertical direction.

In each enclosing rod 1, one end part of a first rod 11 is rotatably connected with one end part of a second rod 12 around a first rotation center line, and the other end part of the first rod 11 is fixedly arranged at the upper part of the upright rod 2. In any two adjacent enclosing rods 1, the end part of the first rod 11 of one enclosing rod 1, which is not rotatably connected with the second rod 12, is fixedly arranged on the upper part of the vertical rod 2, and the other enclosing rod 1 can be arranged on the upper part of the vertical rod 2 along the length extending direction of the other enclosing rod 1 in a relatively sliding manner. The first rotation center line extends in a horizontal direction perpendicular to the upright 2. Specifically, the upper portion of each vertical rod 2 is provided with a through hole 211 penetrating along the horizontal direction, and one surrounding rod 1 of two adjacent surrounding rods 1 can be slidably arranged in the through hole 211 along the length extending direction thereof.

When the frame is in the unfolded state, the end of the second rod 12 is inserted into the through hole 211; when the bedstead is converted from the unfolding state to the folding state, each upright rod 2 slides relatively along the length extending direction of the surrounding rod 1 through the through hole 211, the upright rods 2 gradually approach each other until the rod body of the second rod 12 completely extends to the outer side of the through hole 211, the rotating connection part between the first rod 11 and the second rod 12 extends to the outer side of the through hole 211, the interference of the upper rod seat 21A on the downward rotation of the second rod 12 around the first rotation center line a is eliminated, at the moment, the second rod 12 rotates downwards around the first rotation center line a, and the second rod 12 is folded to the outer side of the corresponding upright rod 2. The first rotation center line extends along the horizontal direction perpendicular to the vertical rods 2, so that the second rods 12 can be folded outside the corresponding vertical rods 2, and the arrangement that the length of the second rods 12 is greater than that of the first rods 11 is combined, so that the width of the folded bed frame in the circumferential direction is greatly reduced when the bed frame is unfolded, and the bed frame is convenient to store and transport.

The outer end of the second rod 12 is further fixedly provided with a limiting member 13, see fig. 7 and 8, and the limiting member 13 is used for enabling the upright rod 2 to be positioned on the inside of the limiting member 13 on the girt 1. Specifically, when the bedstead is in the unfolded state, the limiting part 13 is abutted against the through hole 211, the limiting part 13 is in a cylindrical shape with an outer diameter larger than the aperture of the through hole 211, and the limiting part 13 does not have the size condition of passing through the through hole 211, so that the surrounding rod 1 is prevented from slipping out of the through hole 211.

Each upright rod 2 comprises an upper rod and a lower rod which are connected in a sliding manner in the vertical direction, the stay bar mechanism 3 comprises two stay bars 31 which are mutually crossed and are connected in a rotating manner at the crossed position, and the stay bars 31 obliquely extend in the vertical direction. The upper end of each strut 31 is pivotally connected to the upper end of the upper beam and the lower end of the strut 31 is pivotally connected to the lower end of the lower beam. Specifically, the upper end of each stay 31 is rotatably connected to the upper rod of one of the vertical rods 2, and the lower end of the stay 31 is rotatably connected to the lower rod of the other vertical rod 2.

Specifically, in this embodiment, the upper rod includes an upper rod body 21 and an upper rod seat 21A fixed to the top end of the upper rod body 21, the lower rod includes a lower rod body 22 and a lower rod seat 22A fixed to the bottom end of the lower rod body 22, the upper rod body 21 and the lower rod body 22 are slidably and telescopically disposed in a rod cavity of the lower rod body 22, two adjacent surrounding rods 1 are disposed on the upper rod seat 21A, the upper end of the supporting rod 31 is rotatably connected to the upper rod seat 21A, and the lower end of the supporting rod 31 is rotatably connected to the lower rod seat 22A. When the bed frame is in the unfolded state, as shown in fig. 1 to 3, the upper rod body 21 is folded in the rod cavity of the lower rod body 22, the bottom of the upper rod seat 21A abuts against the upper end of the lower rod body 22, the lower rod body 22 provides a supporting force to the upper rod seat 21A, and at this time, the height of the bed frame in the up-down direction reaches the minimum value; when the foldable telescopic rod is converted from the unfolded state to the folded state, referring to fig. 4 to 6, the upper rod body 21 slides upwards along the length direction of the lower rod body 22, and the upper rod body 21 gradually extends upwards from the rod cavity of the lower rod body 22; when the frame is folded, as shown in fig. 9 to 11, the upper lever body 21 protrudes from the lever cavity of the lower lever body 22, and the height of the frame in the vertical direction increases.

When the bedstead is in an unfolded state, as shown in fig. 1 to 3, the first rod 11 and the second rod 12 of the same enclosing rod 1 extend along the same horizontal direction, all the enclosing rods 1 are sequentially connected along the circumferential direction and are enclosed to form a closed frame shape, the extending directions of two adjacent enclosing rods 1 are mutually perpendicular to provide a stable support for the bedstead, two adjacent upright rods 2 are respectively arranged at two end parts of the same enclosing rod 1 in the length direction, and the space enclosed by the upper enclosing frame and the upright rods 2 reaches the maximum; when the frame is converted from the unfolded state to the folded state, as shown in fig. 4 to 6, the locking mechanism (not shown) is unlocked from locking the frame, the upright rods 2 are pushed inward, the upper ends of the stay rods 31 move upward, the upper rod bodies 21 are gradually driven to slide and extend upward from the rod cavities of the lower rod bodies 22, and the stay rods 31 and the upright rods 2 are gradually folded relatively; synchronously, the upper rod seat 21A is relatively slidingly closed along the length direction of the enclosing rod 1, and the four upright rods 2 are gradually relatively closed; when the frame is in the folded state, as shown in fig. 9 to 11, two adjacent upright bars 2 are located on the same first bar 11, and the second bar 12 rotates downward around the first rotation center line a, so that the second bar 12 extends in the up-down direction and is folded outside the corresponding upright bar 2, and the width of the frame in the circumferential direction is significantly reduced when the frame is unfolded.

Example two

Referring to fig. 12 and 17, the present embodiment differs from the first embodiment mainly in that:

the height of the vertical rod 2 in this embodiment is a fixed value, that is, the vertical rod 2 does not include an upper rod and a lower rod which are slidably connected in the up-down direction, and the vertical rod 2 includes a vertical rod body 20, an upper rod seat 21A disposed at the upper end of the vertical rod body 20, and a lower rod seat 22A disposed at the lower end of the vertical rod body 20. Further, the strut mechanism 3 in the present embodiment is also different from the strut mechanism 3 in the first embodiment.

Specifically, the stay mechanism 3 in the present embodiment also includes two stays 31 intersecting each other and rotatably connected at the intersection, and the stays 31 extend obliquely in the up-down direction, except that in any two adjacent uprights 2, one end of each stay 31 is rotatably connected to the lower pole base 22A of one upright 2, the other end of each stay 31 is rotatably connected to a slider 4, and the slider 4 is relatively slidably provided in the up-down direction on the other upright 2. In the present embodiment, the sliding member 4 is a sliding sleeve, which is slidably disposed on the vertical rod 20 along the length of the vertical rod 20.

It should be noted that there are other embodiments in the present embodiment, and the stay 31 is not limited to be connected to the lower rod seat 22A, specifically, in any two adjacent upright rods 2, one end of each stay 31 is rotatably connected to one upright rod 2, the other end of each stay 31 is rotatably connected to a sliding member 4, and the sliding member 4 is relatively slidably disposed on the other upright rod 2 in the up-down direction, which is within the protection scope of the present invention.

When the bed frame is in the unfolded state, referring to fig. 12 and 13, the first rod 11 and the second rod 12 of the same enclosing rod 1 extend along the same horizontal direction, all the enclosing rods 1 are sequentially connected along the circumferential direction and are enclosed to form a closed frame shape, and the extending directions of two adjacent enclosing rods 1 are perpendicular to each other, so as to provide a stable support for the bed frame. Two adjacent upright rods 2 are respectively arranged at two end parts of the same enclosing rod 1 in the length direction, and the space enclosed by the upper enclosing frame and the upright rods 2 reaches the maximum; when the frame is converted from the unfolded state to the folded state, as shown in fig. 14 and 15, the locking mechanism (not shown) is unlocked from locking the frame, the upright rods 2 are pushed inward, the sliding members 4 slide upward along the length direction of the upright rod bodies 20, so that the supporting rods 31 and the upright rods 2 are gradually folded relatively, and synchronously, the upper rod seats 21A are relatively slidably closed along the length direction of the enclosing rod 1, so that the four upright rods 2 are gradually closed relatively; when the frame is in the folded state, as shown in fig. 16 and 17, two adjacent vertical rods 2 are located on the same first rod 11, and the second rod 12 rotates downward around the first rotation center line a, so that the second rod 12 extends in the up-down direction and is folded outside the corresponding vertical rod 2, the width of the frame in the circumferential direction is significantly reduced when the frame is unfolded, and in addition, the upper end of the sliding member 4 abuts against the lower end of the upper rod seat 21A, and the strut 31 and the vertical rod 2 are folded relatively.

Compared with the embodiment 1, the height of the folding bed in the up-down direction in the embodiment can not be increased along with the folding, and the bed frame occupies small space after being folded, so that the folding bed is convenient to store and transport; and the folding operation is also simpler.

EXAMPLE III

Referring to fig. 18 to fig. 24, the present embodiment is different from the first embodiment mainly in that:

the height of the vertical rod 2 in this embodiment is a fixed value, that is, the vertical rod 2 does not include an upper rod and a lower rod which are slidably connected in the up-down direction, and the vertical rod 2 includes a vertical rod body 20, an upper rod seat 21A disposed at the upper end of the vertical rod body 20, and a lower rod seat 22A disposed at the lower end of the vertical rod body 20. Further, the lengths of the two second rods 12 of the two adjacent rails 1 are different, and the bed frame in this embodiment includes a bottom support mechanism.

In this embodiment, the lengths of the two second rods 12 of the two adjacent surrounding rods 1 are different, the lengths of the two first rods 11 of the two adjacent surrounding rods 1 are different, and the four surrounding rods 1 surround to form a substantially rectangular frame shape.

The bottom supporting mechanism comprises a connecting seat assembly 5, a group of auxiliary supporting assemblies 6 are arranged between each upright rod 2 and the connecting seat assembly 5, the connecting seat assembly 5 comprises an upper base 51 and a lower base 52 which are arranged up and down, each auxiliary supporting assembly comprises a first supporting rod 61 and a second supporting rod 62 which are mutually crossed and rotatably connected at the crossed positions, the lower end part of the first supporting rod 61 is rotatably connected to the lower part of the upright rod 2, and the upper part of the first supporting rod 61 is rotatably connected to the upper base 51; the lower end of the second stay 62 is pivotally connected to the lower base 52, and the upper end of the second stay 62 is slidably provided on the vertical rod 2 in the longitudinal direction of the vertical rod 2 while being relatively rotatable. In the embodiment, the lower end of the first stay 61 is rotatably connected to the lower stay seat 22A, and the upper end of the first stay 61 is connected to the upper base 51 in a quasi-point manner; the lower end of the second support rod 62 is rotatably connected to the lower base 52, and the upper end of the second support rod 62 is rotatably provided with a sliding element 4, specifically in this embodiment, the sliding element 4 is a sliding sleeve, which is slidably disposed on the vertical rod body 20 along the length extending direction of the vertical rod body 20.

When the bed frame is in the unfolded state, as shown in fig. 18 to 20, the first rod 11 and the second rod 12 of the same enclosing rod 1 extend along the same horizontal direction, all the enclosing rods 1 are sequentially connected along the circumferential direction and are enclosed to form a closed frame shape, and the extending directions of two adjacent enclosing rods 1 are perpendicular to each other, so as to provide a relatively stable support for the bed frame. Two adjacent upright rods 2 are respectively arranged at two end parts of the same enclosing rod 1 in the length direction, and the space enclosed by the upper enclosing frame and the upright rods 2 reaches the maximum; when the bed frame is converted from the unfolded state to the folded state, as shown in fig. 21 and 22, the locking of the bed frame by the locking mechanism (not shown in the figure) is released, the upper base 51 is lifted upwards and/or the lower base 52 is pulled downwards, the sliding member 4 slides upwards along the length direction of the upright rod body 20, so that the first support rod 61 and the second support rod 62 are gradually folded relatively with the upright rods 2, synchronously, the upper rod seat 21A is relatively drawn close along the length direction of the girt 1 in a sliding manner, so that the four upright rods 2 are gradually drawn relatively, and the distance between the upper base 51 and the lower base 52 is gradually increased along the up-down direction; when the frame is in the folded state, as shown in fig. 23 and 24, two adjacent upright bars 2 are located on the same first rod 11, and the second rod 12 rotates downward around the first rotation center line a, so that the second rod 12 extends in the up-down direction and is folded outside the corresponding upright bar 2, and the width of the frame in the circumferential direction is significantly reduced when the frame is unfolded.

The problem that the vertical rods 2 are not synchronous when the adjacent surrounding rods 1 are arranged in different lengths is solved by arranging the bottom supporting mechanism in the first embodiment and the second embodiment, when the adjacent surrounding rods 1 are arranged in different lengths in the first embodiment and the second embodiment, in the process that the bed frame is converted from the unfolding state to the folding state, the two vertical rods 2 connected to one side of the surrounding rod 1 with a shorter length are preferentially folded together, and then the two vertical rods 2 connected to one side of the surrounding rod 1 with a longer length cannot be continuously folded together and keep a larger distance in the folding state, so that the storage space occupied by the bed frame after being folded is larger. In this embodiment, even if the lengths of the two second rods 12 in the two adjacent surrounding rods 1 are different, all the upright rods 2 can still be folded in place synchronously, and the space occupied by the folded bed frame is small. Moreover, thanks to the arrangement of the bottom supporting mechanism, when the bed frame is folded, the upper base 51 and the lower base 52 can be relatively far away from each other in the up-down direction by lifting the upper base 51 upwards and/or pulling the lower base 52 downwards, which makes the first supporting rod 61 and the second supporting rod 62 in each set of auxiliary supporting assemblies 6 relatively rotate, so that all the vertical rods 2 are driven to be relatively folded synchronously, and the folding operation of the bed frame is facilitated for a user.

In summary, through the demonstration of various embodiments, the folding bed of the invention can be folded as a whole, the folding process is simple, and the space occupied after folding is small, which is convenient for storage and transportation.

The above-mentioned embodiments are merely illustrative of the technical idea and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be covered in the scope of the present invention.

Claims

1. A folding bed comprising a frame having an expanded state and a folded state, and a locking mechanism for locking the frame in the expanded state, characterized in that: the bedstead comprises an upper enclosing frame and at least three upright posts supported below the upper enclosing frame, all the upright posts extend along the up-and-down direction, the upper enclosing frame comprises a plurality of enclosing rods which are sequentially arranged along the circumferential direction,

each enclosing rod comprises a first rod and a second rod which are connected along the length direction, one end part of the first rod is rotatably connected with one end part of the second rod, one upright rod is arranged between any two adjacent enclosing rods, the other end part of the first rod of one enclosing rod is fixedly arranged on the upper part of the upright rod, and the other enclosing rod can be arranged on the upper part of the upright rod along the length extending direction of the other enclosing rod in a relatively sliding way,

2. The folding bed of claim 1, wherein: the length of the second rod is greater than that of the first rod, and/or the lengths of the second rods in two adjacent enclosing rods are different.

3. The folding bed of claim 1, wherein: every the upper portion of pole setting all is provided with the perforation that runs through along the horizontal direction, two of adjacent setting enclose one of the pole and enclose the pole and can follow self length extending direction and wear to establish with sliding in the perforation.

4. The folding bed of claim 3, wherein: and a limiting part is fixedly arranged at the outer end part of the second rod and used for enabling the vertical rod to be positioned on the enclosing rod at the inner side of the limiting part.

5. The folding bed of claim 1, wherein: and a stay bar mechanism for driving the two vertical rods to relatively approach or separate from each other is arranged between any two adjacent vertical rods.

6. The folding bed of claim 5, wherein: each upright rod comprises an upper rod and a lower rod which are connected in a sliding mode in the vertical direction, each supporting rod mechanism comprises two supporting rods which are crossed with each other and are connected at the crossed position in a rotating mode, the supporting rods extend obliquely in the vertical direction, the upper end portion of each supporting rod is connected with the upper rod in one upright rod in a rotating mode, and the lower end portion of each supporting rod is connected with the lower rod in the other upright rod in a rotating mode.

7. The folding bed of claim 6, wherein: the upper end of each strut is pivotally connected to the upper end of the upper rod and the lower end of each strut is pivotally connected to the lower end of the lower rod.

8. The folding bed of claim 6, wherein: the utility model discloses a pole setting, including the upper boom, the upper boom includes the upper boom body and sets firmly in the upper boom seat on upper boom body top, the lower beam include the lower beam body and set firmly in the lower beam seat of lower beam body bottom, the upper boom body with the lower beam body slides and connects telescopically, two adjacent enclose the pole setting on the upper boom seat, the upper end of vaulting pole is connected with rotating on the upper boom seat, the lower tip of vaulting pole is connected with rotating on the lower beam seat.

9. The folding bed of claim 1, wherein: the bed frame further comprises a bottom supporting mechanism, the bottom supporting mechanism comprises connecting seat assemblies, a group of auxiliary supporting assemblies are arranged between each upright rod and each connecting seat assembly, each connecting seat assembly comprises an upper base and a lower base which are arranged up and down, each auxiliary supporting assembly comprises a first supporting rod and a second supporting rod which are mutually crossed and rotatably connected at the crossed positions, the lower end part of each first supporting rod is rotatably connected to the lower part of each upright rod, and the upper part of each first supporting rod is rotatably connected to the upper base; the lower end of the second support rod is rotatably connected to the lower base, and the upper end of the second support rod can rotate relatively and can be arranged on the vertical rod in a relatively sliding manner along the length extension direction of the vertical rod.

10. The folding bed according to any one of claims 1 to 9, wherein: the four enclosing rods are arranged, and when the bed frame is in an unfolded state, the extending directions of two adjacent enclosing rods are mutually vertical.