CN209733216U - folding infant bed frame - Google Patents

Abstract

A folding infant bed frame comprises side brackets positioned at two sides, wherein each side bracket at each side comprises a first foldable upper surrounding bracket, a second foldable upper surrounding bracket, a first foot brace and a second foot brace; the first upper surrounding frame, the second upper surrounding frame, the first foot supporting frame and one end part of the second foot supporting frame on each side are rotatably connected and then provided with a side frame locking mechanism at the rotating connection position, the first upper surrounding frame on the two sides and the second upper surrounding frame on the two sides are rotatably arranged between the other end parts of the first upper surrounding frames and the other end parts of the second upper surrounding frames respectively, and the side frame locking mechanisms are arranged at the rotating arrangement positions of the two positions respectively. When the infant bed frame is folded, the first upper enclosing frames on the two sides and the second upper enclosing frames on the two sides are folded respectively and drawn close to each other, so that the side supports on the two sides are folded, the first upper enclosing frames and the second upper enclosing frames on the two sides can also rotate mutually with the first foot supporting frames and the second foot supporting frames to be drawn close, the whole foldable infant bed frame forms a bundle shape, the folding in direction X, Y is realized, and the folded size is smaller.

Description

folding infant bed frame

Technical Field

The utility model relates to a folding infant's bedstead.

Background

Infant bed frames in the prior art are generally foldable to reduce the size and facilitate transportation or storage. A folding crib as shown in patent publication No. CN207323155U, comprising: a collapsible surrounding rod; a first leg bar; the second leg rod can rotate relative to the first leg rod, and the first leg rod and the second leg rod are used for supporting the enclosing rod; the first end of the first supporting rod is rotatably connected with the first leg rod; the first end of the second supporting rod is rotatably connected with the second leg rod, and the second end of the second supporting rod is rotatably connected with the second end of the first supporting rod; and the blocking mechanism is arranged on the first supporting rod or/and the second supporting rod and blocks the relative rotation of the first supporting rod and the second supporting rod which are excessively unfolded when the folding baby crib is in the unfolding state. The baby crib can be folded in only one direction.

SUMMERY OF THE UTILITY MODEL

the to-be-solved technical problem of the utility model is to provide a folding infant's bedstead.

in order to solve the technical problem, the utility model discloses a technical scheme is: a folding bed frame for children comprises side brackets positioned at two sides,

The side bracket at each side comprises a first upper surrounding bracket capable of being folded, a second upper surrounding bracket capable of being folded, a first foot brace and a second foot brace;

one end of each of the first upper surrounding frame, the second upper surrounding frame, the first foot brace and the second foot brace on each side is rotationally connected with a shaft extending along the Y direction around the axis and then extends outwards respectively, and a side support locking mechanism is arranged at the rotational connection position;

The other ends of the first upper surrounding frames at two sides are rotatably arranged, the other ends of the second upper surrounding frames at two sides are also rotatably arranged, and side surrounding lock mechanisms are respectively arranged at two rotatably arranged positions;

The foldable infant bed frame is provided with an unfolding position and a folding position,

when the foldable baby bedstead is in the unfolded position, the two first upper enclosing frames and the two second upper enclosing frames are respectively unfolded to form enclosing frames, the two first foot supports and the two second foot supports are relatively far away from each other to support the enclosing frames,

When the folding infant bed frame is positioned at the folding position, the two first upper enclosing frames and the two second upper enclosing frames are respectively folded and closed relatively and are folded and closed relatively together with the two first foot supports and the two second foot supports.

In some embodiments, the first upper frame includes a first end piece at one end, the second upper frame includes a second end piece at one end, the first foot prop includes a first rotating disc at one end, the second foot prop includes a second rotating disc at one end, and the first end piece, the second end piece, the first rotating disc and the second rotating disc are coaxially and rotatably connected through the side frame shaft.

In some embodiments, the side stand lock mechanism includes a first upper enclosure sliding groove formed on the first end piece and including an arc section and a lock groove section, a second upper enclosure sliding groove formed on the second end piece and including an arc section and a lock groove section, a first leg sliding groove formed on the first turntable and including an arc section and a lock groove section, a second leg sliding groove formed on the second turntable and including an arc section and a lock groove section, and a sliding lock pin slidably inserted in the first upper enclosure sliding groove, the second upper enclosure sliding groove, the first leg sliding groove, and the first leg sliding groove, the first upper enclosure sliding groove, the second upper enclosure sliding groove, the arc sections of the first leg sliding groove and the second leg sliding groove extending along a same circumferential trajectory line direction of the side stand shaft, the lock groove sections of the first upper enclosure sliding groove, the second upper enclosure sliding groove, the first leg sliding groove, and the second leg sliding groove respectively extending from one end of the corresponding arc section toward a direction away from the side stand shaft, the side support lock mechanism is provided with a locking position and an unlocking position, when the side support lock mechanism is located at the locking position, the sliding lock pins are located in all the lock groove sections, and when the side support lock mechanism is located at the unlocking position, the sliding lock pins are located in all the arc sections.

In some embodiments, the locking groove sections of the first upper enclosing sliding groove and the second upper enclosing sliding groove extend from one end of the corresponding arc section in a direction radially away from the side support shaft, and the locking groove sections of the first supporting foot sliding groove and the second supporting foot sliding groove extend from one end of the corresponding arc section continuously forward and towards an inclined direction away from the side support shaft.

In some embodiments, the foldable infant bed frame further comprises a kickstand stabilizing mechanism disposed between at least two of the two first kickstands and the two second kickstands.

In some embodiments, the temple stabilizing mechanism includes a chassis located in the middle, and four bottom rods surrounding the chassis, one end of each bottom rod is connected to the chassis in a one-way rotation manner in the unfolded position, two first and two second temple frames are respectively and correspondingly connected to the other ends of the four bottom rods in a rotation manner, when the foldable infant bed frame is in the unfolded position, the corresponding portion of the chassis is pressed against the bottom rods, and the joints between the four bottom rods and the chassis are located below the plane where the four bottom rods are rotatably connected to the two first and two second temple frames.

In some embodiments, the first upper enclosing frame comprises a first end piece located at one end part, and an L-shaped first upper enclosing rod rotationally connected to the first end piece by taking the center line of one end part of the self rod body as the axis, the second upper enclosing frame comprises a second end piece located at one end part, and an L-shaped second upper enclosing rod rotationally connected to the center line of one end part of the self rod body as the axis, the two end parts of the first upper enclosing rods on the two sides are rotationally arranged mutually, the two end parts of the second upper enclosing rod on the two sides are rotationally arranged mutually, and the two rotational arrangement positions are respectively provided with the side enclosing lock mechanism.

In some embodiments, the axis of the boom shaft at the rotational position between the other end portions of the two first upper booms and the axis of the boom shaft at the rotational position between the other end portions of the two second upper booms are respectively located in the XZ plane.

in some embodiments, two of the two first end pieces and two of the four second end pieces are provided with a linkage piece in a sliding and/or rotating manner, and the linkage piece is driven to move due to the folding of the corresponding first foot supporting frame and the corresponding second foot supporting frame, each linkage piece is connected with the side wall unlocking piece of the corresponding side wall lock mechanism through a traction cable, and the linkage piece drags the traction cable to move when moving, so that the unlocking of the side wall lock mechanism is controlled.

in some embodiments, the first foot support comprises a first rotating disc located at one end, the second foot support comprises a second rotating disc located at one end, the first rotating disc and the second rotating disc are clamped between the first end piece and the second end piece and are coaxially and rotatably connected through a side support shaft, the first rotating disc and/or the second rotating disc are provided with notches which are radially retracted, when the foldable baby bedstead is in the unfolded position, the linkage piece overcomes the elastic force of the unlocking elastic piece and is pressed against the edge parts of the first rotating disc and/or the second rotating disc, and when the foldable baby bedstead is in the folded process and in the folded position, the linkage piece is inserted into the notches under the elastic force of the unlocking elastic piece.

the scope of the present invention is not limited to the technical solutions formed by specific combinations of the above technical features, and other technical solutions formed by arbitrary combinations of the above technical features or equivalent features should be covered. For example, the above features and the technical features (but not limited to) having similar functions disclosed in the present application are mutually replaced to form the technical solution.

because of the application of the technical scheme, compared with the prior art, the utility model has the following advantages: the utility model provides a novel infant's bedstead of folding mode, enclose the frame respectively on the first of every side and the second and can be separately folding, infant's bedstead is when folding, enclose respectively on the first of both sides and the second of both sides and fold up and draw close to the other side after folding separately, make and draw in between the collateral branch frame of both sides, and enclose the frame on the first of every side, enclose the frame on the second can also with first foot rest, the second foot rest rotates around the axle of Y direction each other and draws close, make whole folding infant's bedstead constitute and bundle the form, fold in all in X, Y directions, folding back volume is less.

drawings

FIG. 1 is an expanded view of an embodiment of the present invention;

FIG. 2 is a schematic view of a folding according to an embodiment of the present invention;

FIG. 3 is a schematic top view of the present invention;

FIG. 4 is a schematic view taken along line K of FIG. 3;

FIG. 5 is a schematic view of an embodiment of a foldable infant bed frame with a locking mechanism of the lower leg support in the unfolded position;

FIG. 6 is a schematic view showing a side bracket lock mechanism in a folding process of an embodiment of a foldable baby bed frame;

FIG. 7 is a schematic view of an embodiment of a foldable infant bed frame showing the locking mechanism of the lower leg support in the folded position;

FIG. 8 is an exploded plan view of the main components of the side bracket lock mechanism;

FIG. 9 is an exploded perspective view of the side bracket lock mechanism;

FIG. 10 is a schematic structural view of a linkage member, an unlocking elastic member and a traction cable;

FIG. 11 is an exploded view of a side latch mechanism;

FIG. 12 is a schematic view of a second upper boom;

figure 13 is an expanded schematic view of embodiment two of the utility model;

FIG. 14 is a schematic view of the locking mechanism of the lower side frame of the second embodiment of the foldable baby frame in the unfolded position;

FIG. 15 is a schematic view of a side bracket lock mechanism in a folding process of a second embodiment of a foldable baby bed frame;

Wherein 1, a first upper surrounding frame; 11. a first end piece; 12. a first upper surrounding rod; 2. a second upper surrounding frame; 21. A second end piece; 22. a second upper surrounding rod; 3. a first kickstand; 31. a first turntable; 32. a first arm brace; 4. a second kickstand; 41. a second turntable; 42. a second arm brace; 5. a side bracket lock mechanism; 51. a first upper surrounding chute; 52. a second upper surrounding chute; 53. a first arm brace chute; 54. a second arm brace chute; 55. A sliding lock pin; 6. a side locking mechanism; 71. a linkage member; 72. a traction cable; 73. unlocking the elastic piece; 74. A notch; 8. a temple stabilizing mechanism; 81. a bottom bar; 82. a chassis; 91. a side support shaft; 92. surrounding the rod shaft.

Detailed Description

as shown in the figures, the folding infant bed frame comprises side supports positioned on two sides, wherein each side support comprises a first upper surrounding frame 1, a second upper surrounding frame 2, a first foot supporting frame 3 and a second foot supporting frame 4, one end of each first upper surrounding frame 1 is rotatably connected with a side support shaft 91 extending along the Y direction around a shaft axis and then extends outwards, and a side support lock mechanism 5 arranged at the rotating positions of the ends of the first upper surrounding frame, the second upper surrounding frame, the first foot supporting frame 3 and the second foot supporting frame 4, and the side support lock mechanism 5 is used for locking or unlocking the first upper surrounding frame, the second upper surrounding frame.

as shown in fig. 1, 2, 8-12, each first upper surrounding frame 1 is foldable, and includes a first end piece 11 located at one end portion, and an L-shaped first upper surrounding rod 12 rotatably connected to the first end piece 11 through a circumferential groove by using a center line of one end portion of the rod body as an axis, that is, the first end piece 11 and the first upper surrounding rod 12 are rotatable; similarly, each second upper surrounding frame 2 is foldable, and includes a second end piece 21 at one end, and an L-shaped second upper surrounding rod 22 rotatably connected to the second end piece 21 with a center line of one end of the rod body as a shaft center, that is, the second end piece 21 and the second upper surrounding rod 22 are also rotatable.

The other ends of the first upper surrounding rods 12 on both sides are rotatably disposed through a surrounding rod shaft 92, the other ends of the second upper surrounding rods 22 on both sides are also rotatably disposed through a surrounding rod shaft 92, and the axial lines of the two surrounding rod shafts 92 are respectively located in the XZ plane, and the axial line directions of the two surrounding rod shafts are coincident in the embodiment. The intersecting and parallel directions can be determined by the shapes of the first upper surrounding rod 12 and the second upper surrounding rod 22 on the two sides. The rotation arrangement positions are respectively provided with side locking mechanisms 6, the specific structure of the side locking mechanisms 6 is not the invention point, and the side locking mechanisms 6 can be unlocked only by locking two rotation rotating components, as shown in the attached drawing 11, the electric bell structure with the locking tooth blocks matched with the locking grooves is adopted in the embodiment, and detailed description is omitted. The unlocking can be controlled by manual direct operation, or as shown in fig. 10, in the first embodiment, the unlocking is controlled indirectly by a traction cable and other components, so that manual direct control is avoided.

There are two side latch mechanisms 6, and therefore a jacketed traction cable indirect control mechanism, and in detail, as shown in fig. 10, the first end piece 11 and the second end piece 21 on the same side are respectively provided with a link piece 71 in a sliding manner, and an unlocking elastic piece 73 is respectively arranged between each link piece 71 and the corresponding first end piece 11 and second end piece 21. Each traction cable 72 is connected between the link 71 and the respective sideguard unlocking member of the sideguard lock mechanism 6. When the corresponding first foot prop 3 and the second foot prop 4 are folded, the unlocking elastic piece 73 drives the two linkage pieces 71 to extend towards each other, and the linkage pieces 71 drag the traction cable 72 to move when moving, so that the side unlocking piece of the side locking mechanism 6 is controlled to move to facilitate unlocking. Wherein the linkage 71 itself is an elastic pin to avoid impact.

As shown in fig. 1-10, the first kickstand 3 includes a first rotating disk 31 at one end, the second kickstand 4 includes a second rotating disk 41 at one end, and the first end piece 11, the second end piece 21, the first rotating disk 31 and the second rotating disk 41 at each side are coaxially and rotatably connected through a side stand shaft 91. The first turntable 31 and the second turntable 41 are interposed between the first end member 11 and the second end member 21. The first rotary plate 31 and the second rotary plate 41 have radially retracted notches 74, and when the foldable infant bed frame is in the unfolded position, the two link members 71 respectively press against the edge portions of the first rotary plate 31 and the second rotary plate 41, and cannot be ejected. When the foldable baby bed frame is in the folding process and in the folding position, the linkage 71 is inserted into the notch 74 under the elastic force of the unlocking elastic member 73.

as shown in fig. 5 to 10, the side stand lock mechanism 5 includes a first upper surrounding slide groove 51 formed by an arc section and a lock groove section and provided on the first end piece 11, a second upper surrounding slide groove 52 formed by an arc section and a lock groove section and provided on the second end piece 21, a first leg slide groove 53 formed by an arc section and a lock groove section and provided on the first turntable 31, a second leg slide groove 54 formed by an arc section and a lock groove section and provided on the second turntable 41, and a slide lock pin 55, and the slide lock pin 55 is slidably inserted into the first upper surrounding slide groove 51, the second upper surrounding slide groove 52, the first leg slide groove 53, and the first leg slide groove 53. The arc sections of the first upper surrounding sliding groove 51, the second upper surrounding sliding groove 52, the first arm brace sliding groove 53 and the second arm brace sliding groove 54 extend along the same circumferential track line direction with the side support shaft 91, the locking groove sections of the first upper surrounding sliding groove 51 and the second upper surrounding sliding groove 52 extend in the direction of radially keeping away from the side support shaft 91 by one end of the corresponding arc section, and the locking groove sections of the first arm brace sliding groove 53 and the second arm brace sliding groove 54 extend in the inclined direction of continuously keeping forward and keeping away from the side support shaft 91 by one end of the corresponding arc section. The side bracket locking mechanism 5 is provided with a locking position and an unlocking position, when the side bracket locking mechanism 5 is positioned at the locking position, the sliding lock pins 55 are positioned in all lock groove sections, and the side bracket cannot be folded; when the side bracket lock mechanism 5 is in the unlocked position, the sliding lock pins 55 are located in all of the circular arc segments and the side bracket can be folded about the side bracket axis 91.

As shown in fig. 1, 3 and 4, the foldable infant bed frame further comprises a foot-supporting stabilizing mechanism 8, wherein the foot-supporting stabilizing mechanism 8 is disposed in the two first foot-supporting frames 3 and the two second foot-supporting frames 4. The supporting foot stabilizing mechanism 8 comprises a chassis 82 positioned in the middle and four bottom rods 81 arranged around the chassis 82 in a surrounding manner, one end part of each bottom rod 81 is connected with the chassis 82 in a one-way rotating manner under the unfolding position, two first supporting foot frames 3 and two second supporting foot frames 4 are respectively and correspondingly connected with the other end parts of the four bottom rods 81 in a rotating manner, when the folding infant bed frame is positioned under the unfolding position, the corresponding parts of the chassis 82 are pressed on the bottom rods 81, and the joints of the four bottom rods 81 and the chassis 82 are positioned below the planes of the rotary joints of the four bottom rods 81, the two first supporting foot frames 3 and the two second supporting foot frames 4, and the supporting foot stabilizing mechanism is stabilized in a mode of passing through dead points.

Unfolding and folding principles of the folding infant bed frame are as follows:

When the folding infant bed frame is in the unfolding position, the two first upper enclosing rods 12 and the two second upper enclosing rods 22 are unfolded respectively to form an enclosing frame, the two first foot supports 3 and the two second foot supports 4 are relatively far away from the enclosing frame to form a support, and are locked by the side support lock mechanisms 5 and the side support lock mechanisms 6, and the foot support stabilizing mechanisms 8 are unfolded stably.

when the lock is unlocked, the chassis 82 is lifted upwards, and the four bottom rods 81 are closed to drive the four first foot rests 3 and the four second foot rests 4 to be closed. When the first foot support 3 is close to the second foot support 4, under the action of the inclined locking groove sections of the first foot support sliding groove 53 and the second foot support sliding groove 54, the sliding lock pin 55 is moved along the side support shaft 91 in the axial direction to enter the arc section, the side support lock mechanisms 5 on both sides are unlocked, the first foot support 3 on each side and the second foot support 4 rotate to close to a certain angle, the linkage piece 71 is allowed to pop out, the traction cable 72 drags the side unlocking piece of the side unlocking piece 6r to move to facilitate unlocking, the folding infant bed frame is folded, and a carrying chassis is folded.

when the foldable infant bed frame is in the folded position, the two first upper enclosing rods 12 and the two second upper enclosing rods 22 are respectively folded downwards and folded together with the two first foot supports 3 and the two second foot supports 4, and the whole foldable infant bed frame is folded towards the center to be folded into a bundle shape.

When the folding mechanism is unfolded, the two first upper surrounding rods 12 and the two second upper surrounding rods 22 are respectively lifted upwards and unfolded to be approximately frame-shaped, then the chassis 82 is pressed downwards, the four bottom rods 81 are unfolded to drive the two first foot supports 3 and the two second foot supports 4 to be unfolded, when the first foot supports 3 and the second foot supports 4 on each side are unfolded, the linkage 71 is pressed to retract, the traction cable 72 does not play a role in restraining the unlocking piece on the side wall of the side wall lock mechanism 6, and the side wall lock mechanism 6 is automatically locked; in addition, in the process of unfolding the first and second supporting legs 3 and 4 on each side, under the action of the inclined locking groove sections of the first and second supporting leg sliding grooves 53 and 54, the sliding lock pin 55 moves radially in the direction away from the side support shaft 91, so as to enter the locking groove sections of all the sliding grooves, lock the side supports on each side, and unfold the foldable infant bed frame.

embodiment two, as shown in fig. 13-15, the difference between embodiment one and embodiment two is: the structure of the side bracket locking mechanism 5 is slightly different, the supporting leg stabilizing mechanism 8 is omitted, and a bottom cross brace is added between the side brackets on two sides. First go up and enclose spout 51, enclose spout 52 on the second, the locked groove section of first spike spout 53 and second spike spout 54 is all by the one end of corresponding circular arc section radially keep away from the direction extension of side support axle 91, end stull includes two sill brace end parts that are fixed in on two side support axles 91 respectively, two lockpin unlocking parts that slide along the vertical direction and set up on the sill brace end part and be used for controlling the unblock of slip lockpin 55, both ends rotate the folding sill bar of connection between two sill brace end parts, promote folding sill bar on one hand and make it at folding in-process, its tip promotes lockpin unlocking part upwards to make 5 unlocking of side brace latch mechanism, make whole folding infant's bedstead folding.

The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable people skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.

Claims (10)

1. A folding infant bed frame is characterized in that: comprises side brackets positioned at two sides of the bracket,

The side support at each side comprises a first upper surrounding frame (1) capable of being folded, a second upper surrounding frame (2) capable of being folded, a first foot support (3) and a second foot support (4);

One end of each side of the first upper surrounding frame (1), the second upper surrounding frame (2), the first foot support (3) and one end of each side of the second foot support (4) are rotationally connected with a shaft extending along the Y direction around the axis and then respectively extend outwards, and a side support lock mechanism (5) is arranged at the rotational connection position;

the other ends of the first upper surrounding frames (1) at two sides are rotatably arranged, the other ends of the second upper surrounding frames (2) at two sides are also rotatably arranged, and side surrounding lock mechanisms (6) are respectively arranged at the two rotatably arranged positions;

The foldable infant bed frame is provided with an unfolding position and a folding position,

When the foldable infant bed frame is in the unfolded position, the space between the two first upper enclosing frames (1) and the space between the two second upper enclosing frames (2) are respectively unfolded to form an enclosing frame, the four of the two first foot supports (3) and the two second foot supports (4) are relatively far away from each other to support the enclosing frame,

When the folding infant bed frame is positioned at a folding position, the two first upper enclosing frames (1) and the two second upper enclosing frames (2) are respectively folded and closed relatively and are folded and closed relatively together with the two first foot supports (3) and the two second foot supports (4).

2. the foldable infant bed frame of claim 1, wherein: enclose frame (1) including being located one end first end piece (11), enclose frame (2) including being located one end second end piece (21) on the second, first kickstand (3) including being located one end first carousel (31), second kickstand (4) including being located one end second carousel (41), first end piece (11) second end piece (21), first carousel (31) with second carousel (41) are through side support axle (91) coaxial rotation connection.

3. the foldable infant bed frame of claim 2, wherein: the side bracket lock mechanism (5) comprises

A first upper enclosing sliding groove (51) which is formed by an arc section and a locking groove section and is arranged on the first end piece (11), a second upper enclosing sliding groove (52) which is formed by an arc section and a locking groove section and is arranged on the second end piece (21), a first supporting foot sliding groove (53) which is formed by an arc section and a locking groove section and is arranged on the first rotating disk (31), a second supporting foot sliding groove (54) which is arranged on the second rotating disk (41) and is formed by an arc section and a locking groove section, and a sliding locking pin (55), wherein the sliding locking pin (55) can be inserted in the first upper enclosing sliding groove (51), the second upper enclosing sliding groove (52), the first supporting foot sliding groove (53) and the first supporting foot sliding groove (53) in a sliding way,

the arc sections of the first upper enclosing sliding groove (51), the second upper enclosing sliding groove (52), the first supporting foot sliding groove (53) and the second supporting foot sliding groove (54) all extend along the same circumferential trajectory line direction of the side support shaft (91), the locking groove sections of the first upper enclosing sliding groove (51), the second upper enclosing sliding groove (52), the first supporting foot sliding groove (53) and the second supporting foot sliding groove (54) respectively extend from one end of the corresponding arc section to the direction far away from the side support shaft (91),

The side support lock mechanism (5) is provided with a locking position and an unlocking position, when the side support lock mechanism (5) is located at the locking position, the sliding lock pins (55) are located in all the lock groove sections, and when the side support lock mechanism (5) is located at the unlocking position, the sliding lock pins (55) are located in all the arc sections.

4. A foldable infant bed frame as claimed in claim 3, wherein: the locking groove sections of the first upper enclosing sliding groove (51) and the second upper enclosing sliding groove (52) are extended from one end of the corresponding arc section in the direction of radially keeping away from the side support shaft (91), and the locking groove sections of the first supporting foot sliding groove (53) and the second supporting foot sliding groove (54) are extended from one end of the corresponding arc section continuously forwards and towards the inclined direction of keeping away from the side support shaft (91).

5. The foldable infant bed frame of claim 1, wherein: the foldable infant bed frame further comprises a supporting foot stabilizing mechanism (8), wherein the supporting foot stabilizing mechanism (8) is arranged between at least two of the two first supporting foot frames (3) and the two second supporting foot frames (4).

6. The foldable infant bed frame of claim 5, wherein: the supporting foot stabilizing mechanism (8) comprises a chassis (82) located in the middle and four bottom rods (81) arranged around the chassis (82), one end of each bottom rod (81) is connected with the chassis (82) in a one-way rotating mode under an unfolding position, the four first supporting foot frames (3) and the four second supporting foot frames (4) are correspondingly connected with the other end of the four bottom rods (81) in a rotating mode respectively, when the foldable infant bed frame is located under the unfolding position, the corresponding portions of the chassis (82) are pressed on the bottom rods (81), and the joints of the four bottom rods (81) and the chassis (82) are located below the plane where the four rotary joints of the four bottom rods (81) and the two first supporting foot frames (3) and the two second supporting foot frames (4) are located.

7. the foldable infant bed frame according to claim 1, wherein the first upper rail (1) comprises a first end piece (11) at one end, and an L-shaped first upper rail (12) rotatably connected to the first end piece (11) with the center line of one end of the body of the first upper rail as the axis, the second upper rail (2) comprises a second end piece (21) at one end, and an L-shaped second upper rail (22) rotatably connected to the second end piece (21) with the center line of one end of the body of the first upper rail at the axis, the other ends of the first upper rails (12) at both sides are rotatably disposed, the other ends of the second upper rails (22) at both sides are also rotatably disposed, and the side locking mechanisms (6) are respectively disposed at the two rotatably disposed positions.

8. The foldable infant bed frame of claim 7, wherein: the axial line of the surrounding rod shaft (92) at the position where the other ends of the two first upper surrounding rods (12) are rotatably arranged and the axial line of the surrounding rod shaft (92) at the position where the other ends of the two second upper surrounding rods (22) are rotatably arranged are respectively positioned in an XZ plane.

9. The foldable infant bed frame of claim 7, wherein: two in the four of first end piece (11), two second end piece (21) slide and/or rotate and be provided with linkage (71) and fold and drive because of corresponding first kickstand (3) and second kickstand (4) unblock elastic component (73) that linkage (71) removed, every be connected through haulage cable (72) between the side wall unblocking piece of linkage (71) and corresponding side wall lock mechanism (6), drag haulage cable (72) when linkage (71) remove, thereby control side wall lock mechanism (6) unblock.

10. The foldable infant bed frame of claim 9, wherein: the first foot support (3) comprises a first rotating disc (31) positioned at one end part, the second foot support (4) comprises a second rotating disc (41) positioned at one end part, the first rotary disk (31) and the second rotary disk (41) are clamped between the first end piece (11) and the second end piece (21) and are coaxially and rotatably connected through a side bracket shaft (91), the first rotary disc (31) and/or the second rotary disc (41) are/is provided with a notch (74) which is radially retracted, when the folding infant bed frame is in the unfolding position, the linkage piece (71) overcomes the elastic force of the unlocking elastic piece (73) to prop against the edge parts of the first rotating disc (31) and/or the second rotating disc (41), when the folding infant bed frame is in the folding process and in the folding position, the link piece (71) is inserted into the notch (74) under the elastic force of the unlocking elastic piece (73).