CN112617502A

CN112617502A - Bedstead

Info

Publication number: CN112617502A
Application number: CN201910955186.9A
Authority: CN
Inventors: 冷鹭浩
Original assignee: New Tec Integration Xiamen Co Ltd
Current assignee: New Tec Integration Xiamen Co Ltd
Priority date: 2019-10-09
Filing date: 2019-10-09
Publication date: 2021-04-09
Anticipated expiration: 2039-10-09
Also published as: CN112617502B

Abstract

The invention provides a bed frame, which comprises a left longitudinal support rod, a right longitudinal support rod, a middle longitudinal support rod and a plurality of support legs. The left longitudinal support bar and the right longitudinal support bar extend along the longitudinal direction of the bed frame; the middle longitudinal support rod is arranged between the left longitudinal support rod and the right longitudinal support rod and extends along the longitudinal direction of the bed frame; the support legs are connected to the bottoms of the left longitudinal support rod, the right longitudinal support rod and the middle longitudinal support rod in a pivotable mode through hinges, and the support legs can rotate in a vertical plane relative to the corresponding longitudinal support rods so as to achieve folding or unfolding of the support legs. The bed frame provided by the invention has the advantages that the support legs can be pivotally arranged relative to the longitudinal support rods through the arrangement of the hinges, so that a user can conveniently and quickly open or fold the support legs, the space occupied by the folded bed frame is small, and the storage and the transportation are convenient.

Description

Bedstead

Technical Field

The invention relates to the field of furniture, in particular to a bedstead.

Background

With the gradual increase of people's material life, the demand of residents for furniture articles is also in a diversified trend, wherein, the folding bed is a popular furniture product. However, the folding function of the existing folding bed is usually not perfect enough, or the rigidity and stability of the bed frame can not be guaranteed when the folding is realized, and the folding mode of the existing folding bed is single, so that various requirements of users can not be met. In order to solve the problem, some bed frames are designed with various folding modes, but most of the folding modes are to fold the main framework, and the leg parts usually cannot be folded or are complicated in folding mode, so that the space occupied by the folded bed frame is still large and is not favorable for storage and transportation, or the folding process is complicated and is not friendly to users.

Therefore, there is a need to provide a bed frame that at least partially solves the above problems.

Disclosure of Invention

The invention mainly aims to provide a bedstead, so that a user can quickly and effectively furl supporting legs of the bedstead, the furled bedstead occupies a smaller space, and the furled bedstead is simpler in furling process and easy to realize.

In one aspect, the present invention provides a bed frame comprising:

a left longitudinal support bar and a right longitudinal support bar, the left longitudinal support bar and the right longitudinal support bar extending longitudinally of the bed frame, respectively;

a middle longitudinal support bar disposed between the left longitudinal support bar and the right longitudinal support bar and extending in a longitudinal direction of the frame,

the bed frame further comprises:

a plurality of first legs pivotally attached to the lower sides of the left and right longitudinal support bars by a plurality of first hinges, respectively, and a plurality of second legs pivotally attached to the lower sides of the middle longitudinal support bar by a plurality of second hinges, respectively, thereby enabling each leg to be folded or unfolded with respect to the corresponding longitudinal support bar.

According to the scheme, the user can quickly and effectively draw in the supporting legs of the bedstead, the occupied space of the bedstead after the bedstead is drawn in is smaller, and the drawing process is simpler and easy to realize.

In one embodiment, the left and right longitudinal support bars are provided with a plurality of pin holes penetrating through the respective longitudinal support bars in a transverse direction of the respective longitudinal support bars, and a plurality of the first hinges are pivotably attached below the left and right longitudinal support bars via the plurality of pin holes.

According to this scheme, a mode that makes the landing leg rotate and easily realize for longitudinal support pole is provided: i.e. the legs are arranged fixed in relation to the hinge and the hinge is arranged turnable in relation to the longitudinal support bar.

In one embodiment, each of the plurality of first hinges comprises:

the U-shaped plate comprises two straight leg parts facing each other and a connecting part connected between the two straight leg parts, and through holes are respectively formed in one ends of the two straight leg parts, which are far away from the connecting part; and

a pivot shaft capable of passing through a corresponding pin hole on a longitudinal support bar and through two through holes on two straight legs of the U-shaped plate, thereby attaching the first hinge to the corresponding longitudinal support bar,

wherein each of the first legs is fixed to an outer side of the connecting portion of the corresponding first hinge at an end opposite to a ground end.

According to the scheme, the specific arrangement form of the hinge which is easy to realize and can pivot effectively is provided, so that the supporting legs can rotate relative to the longitudinal supporting rod easily and effectively through the hinge, and the hinge is simple in structure and easy to produce and manufacture.

In one embodiment, a connecting rod for connecting the corresponding longitudinal support rod is disposed between the left longitudinal support rod and the middle longitudinal support rod, and a first retaining member is fixedly mounted on the first leg, and the first retaining member is configured to be able to be snapped onto the connecting rod to reliably maintain the first leg in the unfolded state when the first leg is in the unfolded state and the connecting rod is in a position perpendicular to the middle longitudinal support rod.

In one embodiment, the first legs are two and are mounted on the corresponding longitudinal support bars near both longitudinal ends thereof.

In one embodiment, the first retaining member includes a fixing portion and a retaining portion connected to each other, the fixing portion being fixed to the first leg, the retaining portion being formed with a receiving structure that is shaped and sized to mate with the connecting rod so that the corresponding connecting rod can be received within the retaining portion.

In one embodiment, the connecting rods are square in cross-section, and the retaining portion comprises a first plate extending outwardly from the fixing portion in a direction perpendicular thereto, a second plate extending upwardly from a distal end of the first plate perpendicularly to the first plate, and a third plate disposed at a distal end of the second plate and bent back towards the fixing portion, wherein the first, second and third plates enclose a recess that engages the connecting rod when the first retaining member is snapped onto the corresponding connecting rod.

In one embodiment, the fixing portion is fixed to an outer side wall of the leg, and

the length of the first plate is equal to the distance between the outward surface of the leg and the outward surface of the connecting rod;

the length of the second plate is equal to the height of the connecting rod; and also

The length of the third plate is less than or equal to the width of the connecting rod.

According to the above solutions, a specific implementation of how to lock the support leg is provided, namely, the support leg can be locked by matching the retaining member with the connecting rod, the operation is easy to implement, and the support leg can be stably and firmly located in the unfolding position. And the specific settings of each item of the retaining member and the connecting rod in the above schemes can further facilitate the matching of the retaining member and the connecting rod.

In one embodiment, the bed frame further comprises:

the sliding sleeves are arranged on the middle longitudinal supporting rod and can slide on the middle longitudinal supporting rod, and a support is arranged on each sliding sleeve;

four connecting rods, four of which comprise two left connecting rods extending between the left longitudinal support rod and the middle longitudinal support rod and two right connecting rods extending between the right longitudinal support rod and the middle longitudinal support rod, wherein one end of each connecting rod is pivotably attached to an end of the left longitudinal support rod or the right longitudinal support rod and the other end of the connecting rod is pivotably attached to the corresponding bracket,

wherein, the connecting rod is configured to move with the sliding sleeve when the sliding sleeve slides along the middle longitudinal support rod, thereby driving the connecting rod to move on a horizontal plane, so as to make the bedstead in an expanded or folded state.

In one embodiment, the second hinge is mounted on the corresponding slide.

According to the two schemes, the bedstead can be set to be capable of being unfolded and folded in the horizontal plane, and the scheme that the hinge corresponding to the middle longitudinal support rod is arranged on the sliding sleeve can meet the requirement that the support legs arranged below the middle longitudinal support rod can rotate relative to the middle longitudinal support rod on one hand, and the sliding of the sliding sleeve on the middle longitudinal support rod can not be influenced on the other hand, namely, the unfolding and folding in of the bedstead in the horizontal plane can not be influenced.

In one embodiment, the outer side walls of the sliding sleeve are respectively provided with pivots protruding outwards, and the second hinge comprises:

the U-shaped plate comprises two straight leg parts facing each other and a connecting part connected between the two straight leg parts, one ends of the two straight leg parts far away from the connecting part are respectively provided with a concave part, the shape of the concave part is matched with that of the pivot shaft,

wherein the pivot is configured to rest in the recess such that the second hinge is pivotable relative to the sliding sleeve.

According to the present solution, another specific arrangement of a hinge is provided which is easy to implement and which can be pivoted efficiently, so that the leg can be turned easily and efficiently relative to the longitudinal support bar by means of the hinge. The structure is simple and convenient to produce and manufacture.

In one embodiment, a second retaining member is fixedly mounted on the second leg, the second retaining member being configured to snap-fit with the connecting rod to retain the second leg in the deployed state when the second leg is in the deployed state.

In one embodiment, the second retaining member is formed with an extended portion extending outwardly perpendicularly to the leg, and an inwardly facing surface of the connecting rod is provided with an engaging groove at a position opposite to the extended portion, into which the extended portion can be inserted to reliably maintain the second leg in an upright state when the connecting rod is perpendicular to the intermediate longitudinal support rod and the second leg is in a deployed state.

According to the two solutions, a specific implementation is provided as to how to lock the support leg, namely, the support leg can be locked by matching the retaining member with the connecting rod, the operation is easy to implement, and the support leg can be stably and firmly positioned in the unfolding position. And the holding member in above-mentioned several kinds of schemes is specifically arranged with each item of connecting rod, can make things convenient for the cooperation of holding member and connecting rod.

In one embodiment, the first and second hinges are fixed to respective longitudinal support bars, and the first and second legs are pivotally connected to the respective hinges.

In one embodiment, each of the first and second hinges comprises two straight leg portions extending downwardly at a distance from each other, the straight leg portions, the first leg portion and the second leg portion each being provided with a pin hole, each leg portion being positionable between a corresponding two of the straight leg portions and pivotally connecting each leg portion to the corresponding hinge by a pivot passing through the pin hole of the corresponding leg portion and the pin hole of the straight leg portion.

According to the two solutions described above, another way is provided to enable the legs to rotate with respect to the longitudinal support bar and to be easily implemented: i.e. the legs are arranged to be able to pivot relative to the hinge and the hinge is arranged to be fixed relative to the longitudinal support bar.

In one embodiment, a concave hole is formed on a side wall of the other end of the leg opposite to the ground end, which is transverse to the bed frame, and an elastic ball-head leaf spring is arranged on the inner side walls of the straight leg portions, which face each other, and when the leg is in the unfolded state, a protruding point of the ball-head leaf spring can be aligned with the concave hole and extend into the concave hole under the action of the elastic force, so that the leg is locked relative to the hinge.

According to the scheme, the locking between the supporting legs and the hinge can be realized, and the structure is simple, easy to produce and manufacture and convenient for a user to operate.

In one embodiment, the first leg and the second leg rotate in opposite directions during the transition from the unfolded state to the folded state.

According to the scheme, when the bed frame is in a furled state in the horizontal plane and each supporting leg is in a folded state, the supporting legs are cooperatively positioned below each longitudinal supporting rod and do not protrude out of the corresponding longitudinal supporting rod along the longitudinal direction. The arrangement can further reduce the occupied area of the folded bed frame and is convenient to store and transport.

In one embodiment, the left longitudinal support bar, the right longitudinal support bar and the middle longitudinal support bar each comprise two body sections and a middle section connected between the two body sections, the two body sections being rotatable in a vertical plane about the support bar pivot relative to the middle section to thereby cause the bed frame to collapse or expand in a vertical plane, wherein the first leg and the second leg are connected below the corresponding body sections.

According to the scheme, the bed frame can be further folded in the horizontal plane, and the arrangement can further reduce the occupied area of the folded bed frame and is convenient to store and transport.

In one embodiment, a fixed leg extending in a direction towards the support plane is fixedly mounted below the middle section.

According to this scheme, fixed landing leg can support on the supporting plane with folding landing leg cooperation in order with the bedstead, and the whole support intensity of all landing legs can be strengthened in the setting of fixed landing leg for the bedstead can have bigger load.

According to the bedstead provided by the invention, the support legs can be pivotally arranged relative to the longitudinal support rods by arranging the hinges, so that a user can conveniently and quickly open or fold the support legs, the folded bedstead occupies a smaller space, and the storage and the transportation are convenient. Moreover, the process of folding the supporting legs is simple and easy to realize, and the use requirements of users can be met. In addition, the bedstead can also have other modes of folding in and folding, and the space occupied by the folded bedstead can be minimized by matching the multiple modes of folding in and folding.

Drawings

For a better understanding of the above and other objects, features, advantages and functions of the present invention, reference should be made to the preferred embodiments illustrated in the accompanying drawings. Like reference numerals in the drawings refer to like parts. It will be appreciated by persons skilled in the art that the drawings are intended to illustrate preferred embodiments of the invention without any limiting effect on the scope of the invention, and that the various components in the drawings are not drawn to scale.

FIG. 1 is a schematic view of a bed frame according to a preferred embodiment of the present invention, with the frame in a collapsed position and the legs in a collapsed position;

fig. 2 to 3 are schematic views of the frame of fig. 1 during the process of gradually spreading apart in a horizontal plane with the legs in a folded state;

FIG. 4 is a schematic view of the foundation of FIG. 3 with the legs expanded;

FIG. 5 is an enlarged, fragmentary view of the first leg of the foundation of FIG. 4 in a semi-expanded condition with the foundation being semi-expanded in a horizontal plane;

FIG. 6 is an enlarged partial schematic view of the first leg of FIG. 4 in a fully extended condition;

FIG. 7 is an enlarged, fragmentary view of the second leg of FIG. 4 in a semi-expanded, bed frame half-expanded in a horizontal plane;

FIG. 8 is an enlarged partial schematic view of the second leg of FIG. 4 in a fully extended condition;

fig. 9 is a schematic view of a bed base according to another preferred embodiment of the present invention, with the bed base in a collapsed state and the legs in a collapsed state;

fig. 10 is a schematic view of the legs of the foundation of fig. 9 in an expanded state;

fig. 11 to 13 are schematic views illustrating a process of gradually spreading apart the frame of fig. 10 in a horizontal plane;

fig. 14 is a schematic view of the foundation of fig. 1 or 9 collapsed in a vertical plane.

Detailed Description

Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings. What has been described herein is merely a preferred embodiment in accordance with the present invention and other ways of practicing the invention will occur to those skilled in the art and are within the scope of the invention.

The present invention provides a bed frame, and fig. 1 to 8 show a preferred embodiment according to the present invention.

It should be noted that the extending direction and the arrangement position (for example, "transverse direction", "longitudinal direction", "vertical direction", "upward", "downward", "above", "below", "top side", "bottom side", etc.) of each component mentioned in the present invention refer to the extending direction of the component in the case that the frame is placed on the horizontal plane and the legs are in the unfolded state, and thus the directional terms mentioned herein should be understood as relative terms rather than absolute terms. Also, herein, "lateral" and "longitudinal" are both horizontal directions, which may together define a horizontal plane, while vertical is the direction perpendicular to the horizontal plane.

With reference to fig. 1 to 4, it can be seen that the frame 1 comprises a left, more rigid longitudinal support bar 21 for carrying the weight force, a right longitudinal support bar 22 and a middle longitudinal support bar 23 located therebetween. Three longitudinal support bars each extend in the longitudinal direction. And two sliding sleeves 32 which are separated by a certain distance and can slide on the middle longitudinal support rod 23 are arranged on the middle longitudinal support rod 23, and a bracket is arranged on the sliding sleeves 32.

Connecting rods 31 are further connected between the left or right

longitudinal support rod

21 or 22 and the middle longitudinal support rod 23, the number of connecting rods 31 is four in total, one end of each connecting rod 31 is attached to the end of the left or right

longitudinal support rod

21 or 22 so as to be rotatable about a pivot 53, and the other end of the connecting rod 31 is attached to the corresponding bracket so as to be rotatable about the pivot 53. Thus, when the sliding sleeve 32 slides along the middle longitudinal support rod 23, the end of the connecting rod 31 connected with the corresponding bracket moves along with the sliding sleeve 32, thereby driving the connecting rod 31 to move in the horizontal plane, and expanding or contracting the bracket in the transverse direction.

Specifically, when the two sliding sleeves 32 slide along the middle longitudinal support bar 23 toward each other, the bed frame 1 is gradually folded until the left longitudinal support bar 21, the right longitudinal support bar 22 and the middle longitudinal support bar 23 are in a folded state in which they are attached to each other in parallel; when the sliding sleeves 32 slide away from each other along the intermediate longitudinal support bars 23, the bed frame 1 is gradually expanded until the respective connecting rods 31 are in an expanded state perpendicular to the respective longitudinal support bars. Fig. 3 to 4 show the bed frame 1 from folded to unfolded in a horizontal plane.

The frame 1 further comprises legs pivotally connected to the bottom of each longitudinal support bar by hinges, the legs being rotatable in a vertical plane with respect to the corresponding longitudinal support bar to enable folding or unfolding of the legs. When the supporting legs are in a folded state, the supporting legs are parallel to the corresponding longitudinal supporting rods and are attached to the lower parts of the longitudinal supporting rods; the legs extend in the vertical direction when the legs are in the unfolded state and are capable of supporting the frame 1 on a horizontal surface. For the sake of convenience of distinction, the leg member that can rotate with respect to the corresponding longitudinal support bar is referred to herein as a leg, and the leg member fixedly provided on the longitudinal support bar is referred to as a fixed leg 43.

In this embodiment, the hinges are pivotally attached to corresponding longitudinal support bars, and the legs are fixed to the hinges to rotate with the hinges. Specifically, the hinge includes a U-shaped plate including two hinge plates facing each other in the lateral direction, the two hinge plates being provided with pin holes and capable of being positioned at both lateral sides of the corresponding longitudinal support bar to be connected to the corresponding longitudinal support bar by pivots 53 penetrating the pin holes, and the corresponding legs being fixed to the bottom sides of the connected plates.

For convenience of further description below, in the present embodiment, the leg connected below the left and right longitudinal support bars 21 and 22 is referred to as a first leg 41, the hinge connected to the first leg 41 is referred to as a first hinge 51, and the U-shaped plate of the first hinge 51 is referred to as a first U-shaped plate; the leg connected below the middle longitudinal support bar 23 is referred to as a second leg 42, the hinge connected to the second leg 42 is referred to as a second hinge 52, and the U-shaped plate of the second hinge 52 is referred to as a second U-shaped plate 52 a.

Referring now to fig. 5 and 6, the first leg 41 and the first hinge 51 will be described first. The right longitudinal support bar 22 is provided with pin holes extending therethrough in the lateral direction, and when the two hinge plates of the first U-shaped plate are positioned on both sides of the right longitudinal support bar 22 with the pin holes of the right longitudinal support bar 22 and the hinge plates aligned, pivot shafts 53 can be inserted through the respective pin holes to pivotally connect the first hinge 51 to the right longitudinal support bar 22.

Preferably, a first holding member 61 is fixedly mounted on the first leg 41, and the first holding member 61 can cooperate with the connecting rod 31 to hold the first leg 41 in the unfolded state when the frame 1 is in the unfolded state and the first leg 41 is in the unfolded state. Specifically, the holding member includes a fixing portion 61a and a holding portion 61b fixed to each other, the fixing portion 61a is fixed to the first leg 41, and the holding portion 61b is bent to form a receiving structure that is adapted to the shape of the connecting rod 31 so that the corresponding connecting rod 31 can be snap-received in the holding portion 61 b.

Further, the connecting rod 31 is a square rod having a square cross section, and the holding portion 61b includes a first plate 612, a second plate 613, and a third plate 614 which are connected end to end in this order from the fixing portion 61 a. The first plate 612 extends outward in a longitudinal direction from the top of the fixing portion 61a, the second plate 613 is provided at an end of the first plate 612 and extends upward, and the third plate 614 is bent back in the longitudinal direction from an end of the second plate 613 so as to be able to face the first plate 612. Thus, when the retaining portion is snapped onto the corresponding connecting rod 31, the first plate 612 is the bottom side of the connecting rod 31, the second plate 613 is located longitudinally outside the connecting rod 31, and the third plate 614 is located at the top side of the connecting rod 31.

More preferably, the size of each plate member may be set according to the size of the connecting rod 31. For example, when the fixing portion 61a is fixed to the outer side wall of the leg in the longitudinal direction, the first plate member 612 may be set to have a size in the longitudinal direction equal to the longitudinal distance between the leg and the outer side of the connecting rod 31; a dimension of the second plate 613 in the vertical direction is set to be equal to the height of the connecting rod 31; the dimension of the third plate 614 in the longitudinal direction is set to be smaller than or equal to the width of the connecting rod 31 (i.e., the dimension of the connecting rod 31 in the longitudinal direction). Such an arrangement enables the user to catch the holding portion 61b on the connecting rod 31 with a slight force, and to more firmly hold the engaging relationship of the connecting rod 31 and the holding portion 61 b.

The second leg 42 below the middle longitudinal support bar 23 and the second hinge 52 for mounting the second leg 42 are arranged slightly differently from the first leg 41 and the first hinge 51. Specifically, referring to fig. 7 and 8, it can be seen that second hinge 52 is mounted on sliding sleeve 32 such that second leg 42 can slide with sliding sleeve 32, and each of the two lateral sides of sliding sleeve 32 is provided with a pivot extending laterally outward. The second hinge 52 includes two recesses 52b in addition to the second U-shaped plate 52 a. The recesses 52b have openings and are fixed to the laterally outer sides of the hinge plates with the openings aligned with the pin holes in the hinge plates through which the pivot shafts can pass and enter the recesses 52b via the openings when the second hinge 52 is mounted on the sliding sleeve 32 so that the second hinge 52 can rotate relative to the sliding sleeve 32.

Preferably, a second retaining member 52 is fixedly mounted on the second leg 42, the second retaining member 52 being capable of snap-fitting with the connecting rod 31 to retain the second leg 42 in the expanded state, similar to the first retaining member 61. Specifically, referring to fig. 7, a portion 52c of the second holding member 52 is fixed to the second leg 42, an engagement groove 311 facing the second holding member 52 is provided on the connecting rod 31, an extension 521 corresponding to the engagement groove 311 is provided on the second holding member, and the extension 521 can be inserted into the engagement groove 311 to achieve an open fit when the frame 1 is spread in the horizontal plane and the second leg 42 is in the unfolded state.

Fig. 1 to 4 show how the frame 1 is gradually brought from an initial state, in which the legs are folded, to a final state, in which the frame 1 is unfolded and the legs are unfolded. Specifically, as shown in fig. 1 and 2, in use, the bed frame 1 may be turned upside down on a horizontal plane, the first leg 41 and the second leg 42 are unfolded, then, as shown in fig. 3, the bed frame is turned over so that the first leg 41, the second leg 42 and the fixed leg 43 support the bed frame 1 on a support plane (a horizontal plane such as the ground), and then the bed frame 1 is spread on the horizontal plane.

Preferably, the rotation directions of the first leg 41 and the second leg 42 when rotating from the folded state to the unfolded state are opposite, and specifically, as shown by arrows in fig. 1, when the frame 1 is turned upside down on a horizontal plane and stands on the left side of the left longitudinal support bar 21, it can be seen that the first leg 41 is rotated from the folded state to the unfolded state in a counterclockwise direction and the second frame 42 is rotated from the folded state to the unfolded state in a clockwise direction. This arrangement allows the frame 1 to be folded in a horizontal plane with the legs in the folded position, with the legs abutting under the corresponding longitudinal support bar and not projecting longitudinally beyond it. When the frame 1 is still in the half-expanded state in the horizontal plane, the first leg 41 and the second leg 42 are in the expanded state but are not locked, and both the first holding member 61 and the second holding member 52 are in a state of waiting for engagement with the connecting rod 31.

Fig. 3 to 4 show a process of expanding the frame 1 in a horizontal plane. Wherein, firstly, the sliding sleeves 32 are slid away from each other along the middle longitudinal support bar 23, and the bed frame 1 is gradually expanded until the connection bars 31 are in an expanded state perpendicular to the longitudinal support bars, respectively, at which time the connection bars 31 are snapped into the holding portions 61b of the first holding members 61; and the extension 521 of the second holding member 52 is inserted into the engagement groove 311 of the connecting rod 31, thereby achieving the engagement of the connecting rod 31 with the first and second holding

members

61 and 52, and thus locking the first and

second legs

41 and 42 in the deployed position.

It is to be noted that the term "plurality" as used herein means two or more. For example, although two foldable legs are provided below each longitudinal support bar in this embodiment, the number of foldable legs is not limited to this, and for example, three or more foldable legs may be provided below some or all of the longitudinal support bars.

Fig. 9 to 13 show a bed base 1 according to another preferred embodiment of the present invention. In the present embodiment, the first leg 41 and the second leg 42 are arranged in substantially the same manner except that the rotation directions are opposite when they are deployed. In particular, the hinges 54 are fixed on respective longitudinal support bars, the legs being connected to the respective hinges 54 in a pivotable manner.

Referring to fig. 10, the first hinge 51 mounted on the left longitudinal support bar 21 includes two straight leg portions extending downward from both lateral sides of the left longitudinal support bar 21 to face each other, the two straight leg portions being provided with pin holes, and the leg portions also being provided with pin holes. The legs can be positioned between the two straight leg portions and, when the legs are positioned between the two straight leg portions, the respective pin holes can be aligned and the pivot shaft 53 can extend through the respective pin holes, thereby enabling the legs to pivot relative to the hinge 54. Preferably, in order to prevent the two straight leg portions from being deformed, a connecting portion 57 is further provided between the two straight leg portions, and the connecting portion 57 is provided near the bottom of the straight leg portions without affecting the pivoting of the leg portions.

The locking of the legs is achieved by means of a ball leaf spring 55. Specifically, the tops of the lateral side walls of the legs are provided with recessed holes 56, and the tops of the side walls of the straight legs facing each other are provided with ball leaf springs 55 having elasticity. During the rotation of the legs from the folded to the unfolded state, the legs contact the ball leaf springs 55 and press the ball leaf springs 55 to accumulate force, and further rotation and when the recesses 56 are aligned with the ball leaf springs 55, the ball leaf springs 55 extend under the influence of elasticity into the recesses 56, thereby locking the legs relative to the hinges 54.

The second leg 42 and the second hinge 52 are arranged in a similar manner to the first leg 41 and the first hinge 51, and are not described in detail herein.

It will be appreciated that since the locking of the legs is achieved in this embodiment without the use of the connecting rods 31, the legs can be unfolded and locked before the frame 1 is used, and then gradually unfolded in the horizontal plane, as shown in fig. 9, 11, 12 and 13. Among other things, fig. 12 shows further details of the sliding sleeve 32 on the intermediate longitudinal support bar 23. Of course, in this embodiment, before the bed frame 1 is used, the bed frame may be firstly unfolded in the horizontal plane and then the supporting legs may be unfolded, that is, the two processes of unfolding the bed frame 1 in the horizontal plane and unfolding the supporting legs do not have any dependency relationship or sequence, and a user may operate the bed frame according to specific needs. Alternatively, the connecting rods 31 may be directly arranged in fixed connection with the respective longitudinal connecting rods.

Preferably, the frame 1 can also be configured to be collapsible in a vertical plane to further reduce the space it occupies in its collapsed state. Turning now to fig. 14, it can be seen that each of the three longitudinal support bars comprises three parts: two main body sections 25 and an intermediate section 24 connected between the two main body sections 25, the two main body sections 25 being rotatable relative to each other in a vertical plane about an axis extending in a transverse direction with respect to the intermediate section 24 to collapse or unfold the frame 1 in the vertical plane, fig. 14 showing its collapsed state.

Preferably, a fixed leg 43 is further provided on the bottom side of the intermediate section 24, the fixed leg 43 being fixedly provided on the bottom side of the intermediate section 24 and being non-rotatable with respect to the intermediate section 24. The foldable legs described above together with the fixed legs 43 support the frame 1 when the frame 1 is in use.

The bed frame provided by the invention has the advantages that the support legs can be arranged relative to the longitudinal support rods in a pivoting manner by arranging the hinges, a user can conveniently and quickly open or fold the support legs, the bed frame with the folded support legs occupies a smaller space, and the storage and the transportation are convenient. Moreover, the process of folding the supporting legs is simple and easy to realize, and the use requirements of users can be met. In addition, the bedstead can also have a plurality of modes such as folding in the horizontal plane and folding in the vertical plane integrally, and the occupied space of the folded bedstead can be minimized by matching the plurality of folding modes.

The foregoing description of various embodiments of the invention is provided for the purpose of illustration to one of ordinary skill in the relevant art. It is not intended that the invention be limited to a single disclosed embodiment. As mentioned above, many alternatives and modifications of the present invention will be apparent to those skilled in the art of the above teachings. Thus, while some alternative embodiments are specifically described, other embodiments will be apparent to, or relatively easily developed by, those of ordinary skill in the art. The present invention is intended to embrace all such alternatives, modifications and variances of the present invention described herein, as well as other embodiments that fall within the spirit and scope of the present invention as described above.

List of part reference numerals:

bedstead 1

Left longitudinal support bar 21

Right longitudinal support bar 22

Intermediate longitudinal support bar 23

First leg 41

Second leg 42

Fixed leg 43

Connecting rod 31

Engaging groove 311

Sliding sleeve 32

First hinge 51

Pivot 53

First holding member 61

Fixed portion 61a

Holding portion 61b

First plate 612

Second plate 613

Third plate 614

Second holding member 52

Second U-shaped plate 52a

Concave portion 52b

Extension 521

Hinge 54

Ball leaf spring 55

Pocket 56

Connecting part 57

Intermediate section 24

The main body section 25

Claims

1. A bed base (1) comprising:

a left longitudinal support bar (21) and a right longitudinal support bar (22) extending in a longitudinal direction of the frame, respectively;

a middle longitudinal support bar (23) disposed intermediate the left and right longitudinal support bars and extending in a longitudinal direction of the frame,

it is characterized in that the bed frame further comprises:

a plurality of first legs (41) pivotally attached to the lower side of the left and right longitudinal support bars, respectively, by a plurality of first hinges (51), and a plurality of second legs (42) pivotally attached to the lower side of the middle longitudinal support bar, respectively, by a plurality of second hinges, thereby enabling each leg to fold or unfold with respect to the corresponding longitudinal support bar.

2. The bed base according to claim 1, wherein the left and right longitudinal support bars are provided thereon with a plurality of pin holes penetrating therethrough in a transverse direction of each longitudinal support bar, and a plurality of the first hinges are pivotably attached below the left and right longitudinal support bars via the plurality of pin holes.

3. The bed frame of claim 2, wherein each of the plurality of first hinges comprises:

4. The bed base according to claim 3, wherein a connecting rod (31) for connecting the respective longitudinal support rods is provided between the left longitudinal support rod and the middle longitudinal support rod, and between the right longitudinal support rod and the middle longitudinal support rod, respectively, and wherein a first holding member (61) is fixedly mounted on the first leg, the first holding member being configured to be able to snap on the connecting rod to securely maintain the first leg in the unfolded state when the first leg is in the unfolded state and the connecting rod is in a position perpendicular to the middle longitudinal support rod.

5. The bed base of claim 3, wherein the first legs are two and are mounted on the corresponding longitudinal support bars near both longitudinal ends thereof.

6. The bed base according to claim 4, wherein the first retaining member comprises a fixing portion (61a) and a retaining portion (61b) connected to each other, the fixing portion being fixed to the first leg, the retaining portion being formed with a receiving structure matching in shape and size the connecting bar so as to be able to receive the corresponding connecting bar within the retaining portion.

7. The bed base according to claim 6, wherein the tie bars are square in cross-section and the retaining portion comprises a first plate (612) extending outwardly from the fixing portion in a direction perpendicular thereto, a second plate (613) extending upwardly from the first plate end perpendicularly to the first plate, and a third plate (614) provided at the second plate end and bent back towards the fixing portion, wherein the first plate, the second plate and the third plate enclose a groove engaging the tie bar when the first retaining member is snapped onto the corresponding tie bar.

8. The bed frame according to claim 7, wherein the fixing portion is fixed to an outer side wall of the leg, and

9. The bed frame of claim 1, wherein the bed frame further comprises:

two sliding sleeves (32) which are arranged at intervals and are arranged on the middle longitudinal supporting rod and can slide on the middle longitudinal supporting rod, wherein a bracket is arranged on each sliding sleeve;

four connecting rods (31) comprising two left connecting rods extending between the left longitudinal support rod and the middle longitudinal support rod and two right connecting rods extending between the right longitudinal support rod and the middle longitudinal support rod, wherein one end of each connecting rod is pivotably attached to an end of the left longitudinal support rod or the right longitudinal support rod and the other end of the connecting rod is pivotably attached to the corresponding bracket,

10. The bed base of claim 9, wherein the second hinge is mounted on the corresponding slider.

11. The bed frame according to claim 10, wherein the sliding sleeves are provided at outer sidewalls thereof with pivots protruding outward, respectively, and the second hinge comprises:

12. The bed base according to claim 11, wherein a second retaining member (52) is fixedly mounted on the second leg, the second retaining member being configured to be snap-fittable with the connecting bar to retain the second leg in the unfolded state when the second leg is in the unfolded state.

13. The frame according to claim 12, wherein the second retaining member is formed with an extension (521) extending outwardly perpendicularly to the leg, an inward facing surface of the connecting rod being provided with an engagement groove (311) at a position opposite to the extension, the extension being insertable into the engagement groove to reliably maintain the second leg in an upright state when the connecting rod is perpendicular to the middle longitudinal support rod and the second leg is in the unfolded state.

14. The bed frame of claim 1 wherein the first and second hinges are secured to respective longitudinal support bars, and the first and second legs are pivotally connected to the respective hinges.

15. The bed base according to claim 14, wherein each of the first hinge and the second hinge comprises two straight leg portions extending downwardly at a distance from each other, the straight leg portions, the first leg portion and the second leg portion each being provided with a pin hole, each leg portion being positionable between the corresponding two straight leg portions and pivotally connecting each leg portion to the corresponding hinge by means of a pivot shaft (53) passing through the pin hole of the corresponding leg portion and the pin hole of the straight leg portion.

16. The bed base according to claim 15, wherein the leg has an indentation (56) formed in a lateral wall of the leg facing the lateral direction of the bed base at the other end opposite to the ground end, and the straight leg portion has a ball-shaped leaf spring (55) having elasticity provided on its inner side walls facing each other, and a protruding point of the ball-shaped leaf spring is aligned with the indentation and extends into the indentation by the elasticity when the leg is in the unfolded state, thereby locking the leg with respect to the hinge.

17. The bed base of claim 1 wherein the first leg and the second leg rotate in opposite directions during transition from the expanded state to the collapsed state.

18. The bed base according to claim 1, wherein the left longitudinal support bar, the right longitudinal support bar and the middle longitudinal support bar each comprise two body sections (25) and a middle section (24) connected in between the two body sections, the two body sections being rotatable in a vertical plane relative to the middle section about the support bar pivot axis, thereby causing the bed base to collapse or expand in a vertical plane, wherein the first leg and the second leg are connected below the corresponding body sections.

19. The bed base according to claim 18, characterised in that below the middle section there is fixedly mounted a fixed leg (43) extending in a direction towards the support plane.