Foldable baby crib

Abstract

The foldable baby crib comprises a side frame, a surrounding rod assembly and a first lock assembly, the surrounding rod assembly comprises a first rod piece and a second rod piece which are rotationally connected, the first lock assembly comprises a first locking piece, a second locking piece, a shell, a first sliding shaft, a second sliding shaft and a sliding seat, and the first rod piece and the second rod piece are rotationally connected with the shell; the first sliding shaft and the second sliding shaft are both in sliding connection with the shell, the first sliding shaft is used for being matched with the first locking piece, the second sliding shaft is used for being matched with the second locking piece, and when the sliding base moves to the unlocking position relative to the shell, the first sliding shaft and the second sliding shaft leave the first locking piece and the second locking piece respectively. The foldable baby crib is easy and reliable to operate, and the folding operation is simplified.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of infant products, in particular to a foldable baby bed. BACKGROUND

[0002] Traditional baby beds can meet the needs of infants and children for sleep or play. With the increasing demand of users for the functions and convenient use of baby beds, foldable baby beds have appeared.

[0003] Foldable baby beds can be switched between an unfolded state and a folded state, which not only meets the use needs, but also facilitates storage and transportation by folding, so that foldable baby beds are more popular among families.

[0004] However, the folding operation of the foldable baby bed in the related art is cumbersome. UTILITY MODEL CONTENT

[0005] Therefore, it is necessary to provide a foldable baby bed to solve the problem of cumbersome folding operation.

[0006] The present application provides a foldable baby bed, comprising:

[0007] Side frames, comprising a first side frame and a second side frame, the first side frame and the second side frame are arranged opposite and spaced apart;

[0008] A surrounding rod assembly is arranged between the first side frame and the second side frame, the surrounding rod assembly comprises a first rod member and a second rod member, the first end of the first rod member is rotatably connected to the first side frame, and the first end of the second rod member is rotatably connected to the second side frame;

[0009] A first lock assembly comprises a first locking member, a second locking member, a housing, a first sliding shaft, a second sliding shaft and a sliding seat, the first locking member is connected to the second end of the first rod member, the second locking member is connected to the second end of the second rod member, the housing is connected between the first rod member and the second rod member, and the first rod member and the second rod member are rotatably connected with the housing, the first sliding shaft and the second sliding shaft are slidably connected with the housing, the first sliding shaft is used for cooperating with the first locking member, the second sliding shaft is used for cooperating with the second locking member, and when the sliding seat moves to an unlocking position relative to the housing, the first sliding shaft and the second sliding shaft respectively leave the first locking member and the second locking member.

[0010] In one of the embodiments, the foldable crib further comprises a support assembly disposed between the first side frame and the second side frame, the support assembly comprising a third bar member, a fourth bar member and a folding joint, a first end of the third bar member rotatably connected to the first side frame, a first end of the fourth bar member rotatably connected to the second side frame, a second end of the third bar member and a second end of the fourth bar member rotatably connected by the folding joint; when the first locking assembly is unlocked, the second end of the first bar member and the second end of the second bar member rotate towards the support assembly, the first end of the first bar member and the first end of the second bar member fold towards the middle; the second end of the third bar member and the second end of the fourth bar member rotate towards the surrounding bar assembly, the second end of the third bar member and the second end of the fourth bar member fold towards the middle; the first side frame and the second side frame move towards each other.

[0011] In one of the embodiments, the housing is provided with a first sliding groove and a second sliding groove, the sliding seat is provided with a first inclined groove and a second inclined groove, the first inclined groove and the second inclined groove correspond to the first sliding groove and the second sliding groove respectively, the first inclined groove intersects with the extension direction of the first sliding groove, the second inclined groove intersects with the extension direction of the second sliding groove, the first sliding shaft is arranged in the first sliding groove and the first inclined groove, the second sliding shaft is arranged in the second sliding groove and the second inclined groove, when the sliding seat slides relative to the housing, the groove wall of the first inclined groove pushes the first sliding shaft to slide along the first sliding groove away from the first locking member, the groove wall of the second inclined groove pushes the second sliding shaft to slide along the second sliding groove away from the second locking member.

[0012] In one of the embodiments, the first locking member is provided with a first limiting groove, when the first locking assembly is in the locked state, the first sliding shaft is limitedly matched with the first limiting groove;

[0013] and / or, the second locking member is provided with a second limiting groove, when the first locking assembly is in the locked state, the second sliding shaft is limitedly matched with the second limiting groove.

[0014] In one of the embodiments, an elastic reset member is arranged between the sliding seat and the housing, the elastic reset member is used to drive the sliding seat to move relative to the housing, when the elastic reset member drives the sliding seat to move relative to the housing, the sliding seat drives the first sliding shaft and the second sliding shaft to move away from each other.

[0015] In one of the embodiments, the foldable baby crib further comprises a second lock assembly including a locking member and a reset elastic member, an end of the third rod member close to the first side frame is connected with a mounting base, the third rod member is rotatably connected with the mounting base, and the mounting base is connected with the first side frame; when the foldable baby crib is in the unfolded state, the locking member can extend into the third rod member under the elastic force of the reset elastic member to limit the rotation of the third rod member relative to the mounting base.

[0016] In one of the embodiments, the foldable baby crib further comprises a linkage unlocking mechanism including a traction member and a transmission assembly, one end of the traction member is connected with the first sliding shaft, and the other end is connected with the locking member through the transmission assembly; the transmission assembly is used to move the locking member away from the third rod member under the traction of the traction member, so that the locking member overcomes the elastic force of the reset elastic member and moves out of the third rod member.

[0017] In one of the embodiments, the fence assembly or the support assembly comprises a reinforcing member, an end of the reinforcing member is connected with the mounting base, the third rod member is rotatably connected with the mounting base, the reinforcing member is a hollow pipe, and a first guide groove is arranged on the pipe wall close to the end;

[0018] The transmission assembly comprises a first transmission member and a second transmission member, the first transmission member is provided with a guide hole and a second guide groove penetrating the side wall of the guide hole, one end of the locking member away from the third rod member is slidably fitted in the guide hole, and a guide pin is connected with the locking member, the guide pin is arranged in the first guide groove and the second guide groove, the length direction of the second guide groove intersects with the length direction of the first guide groove, and the first transmission member is telescopically arranged in the reinforcing member, so that the groove wall of the second guide groove pushes the guide pin to move along the first guide groove, and the guide pin moves along the first guide groove to drive the locking member to move out of the third rod member.

[0019] In one of the embodiments, the second transmission member is connected with the traction member and can move upward relative to the mounting base in the vertical direction under the traction of the traction member, one side of the second transmission member facing the first transmission member is provided with an inclined surface, and part of the structure of the first transmission member protrudes out of the reinforcing member and abuts against the inclined surface; when the first sliding shaft drives the second transmission member to move relative to the mounting base through the traction member, the inclined surface pushes the first transmission member into the reinforcing member, so that the first transmission member drives the guide pin to move away from the third rod member along the first guide groove.

[0020] In one embodiment, the foldable crib further comprises a foldable mattress, the mattress being disposed on the support assembly.

[0021] In one embodiment, one end of the rail assembly is movably connected to the first side frame, and the other end of the rail assembly is movably connected to the second side frame, the rail assembly being movable along the height direction of the side frames so as to enable the rail assembly to be raised and lowered.

[0022] In one embodiment, one end of the support assembly is movably connected to the first side frame, and the other end of the support assembly is movably connected to the second side frame, the support assembly being movable along the height direction of the side frames so as to enable the support assembly to be raised and lowered.

[0023] In one embodiment, the first side frame and the second side frame are each telescopic along their length direction.

[0024] In one embodiment, the rail assembly is detachably connected to the first side frame and the second side frame, and the support assembly is detachably connected to the first side frame and the second side frame.

[0025] The foldable crib described above, when the foldable crib is unfolded, the first locking assembly can be used to lock the first rod member and the second rod member, so that the rail assembly is stably maintained in the unfolded state. When it is necessary to fold the foldable crib, only the sliding seat needs to be moved relative to the housing to the unlocking position, so that the first sliding shaft and the second sliding shaft are respectively away from the first locking member and the second locking member, so that the support assembly restores the folding performance, so as to adapt to the need of the foldable crib switching from the unfolded state to the folded state. Therefore, such unlocking operation is simple and reliable, which simplifies the folding operation and does not need complicated unlocking operation. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 The structure schematic diagram of the foldable crib of an embodiment of the present application in the folded state.

[0027] Figure 2 The structure schematic diagram of the foldable crib of an embodiment of the present application in the unfolded state.

[0028] Figure 3 The structure schematic diagram of the foldable crib of an embodiment of the present application in the folded state. Figure 2 The local enlarged schematic diagram of A in FIG. 6.

[0029] Figure 4 The structure schematic diagram of the foldable crib of an embodiment of the present application in the folded state. Figure 3 The exploded structure schematic diagram of the first locking assembly of the foldable crib.

[0030] Figure 5 The structure schematic diagram of the foldable crib of an embodiment of the present application in the folded state. Figure 3Structure diagram of the first lock assembly of the foldable crib in the locked state.

[0031] Figure 6 Structure diagram of the first lock assembly of the foldable crib in the unlocked state. Figure 3 Structure diagram of the first lock assembly of the foldable crib in the unlocked state.

[0032] Figure 7 Structure diagram of the foldable crib in the unlocked state. Structure diagram of the foldable crib in the unlocked state.

[0033] Figure 8 Structure diagram of the foldable crib in the unlocked state. Figure 7 Structure diagram of the foldable crib in the unlocked state.

[0034] Figure 9 Structure diagram of the foldable crib in the unlocked state. Figure 7 Structure diagram of the foldable crib in the unlocked state.

[0035] Figure 10 Structure diagram of the foldable crib in the unlocked state. Figure 7 Structure diagram of the foldable crib in the unlocked state.

[0036] Figure 11 Structure diagram of the foldable crib in the unlocked state. Figure 7 Structure diagram of the foldable crib in the unlocked state.

[0037] Figure 12 Structure diagram of the foldable crib in the unlocked state. Figure 10 Structure diagram of the foldable crib in the unlocked state.

[0038] Figure 13 Structure diagram of the foldable crib in the unlocked state. Figure 12 Structure diagram of the foldable crib in the unlocked state.

[0039] BRIEF DESCRIPTION OF THE DRAWINGS

[0040] 10, side frame; 10a, first side frame; 10b, second side frame; 11, first support; 12, second support; 13, guardrail; 14, reinforcing member; 14a, first guide slot; 15, mounting base; 15a, first mounting hole; 15b, sleeving hole; 20, surrounding rod assembly; 21, first rod member; 211, second connecting hole; 22, second rod member; 221, fourth connecting hole; 30, support assembly; 31, third rod member; 31a, second mounting hole; 32, fourth rod member; 33, folding joint; 40, first lock assembly; 41, first locking member; 411, first limiting slot; 412, first avoiding hole; 413, wire passing hole; 42, second locking member; 421, second limiting slot; 422, second avoiding hole; 43, housing; 431, first avoiding opening; 432, second avoiding opening; 433, third avoiding opening; 434, fourth avoiding opening; 435, first sliding slot; 436, second sliding slot; 437, first connecting hole; 438, third connecting hole; 44, first sliding shaft; 45, second sliding shaft; 46, sliding seat; 461, first inclined slot; 462, second inclined slot; 50, second lock assembly; 51, locking member; 51a, guide pin; 52, reset elastic member; 60, linkage unlocking mechanism; 61, traction member; 62, transmission assembly; 621, first transmission member; 621a, guide hole; 621b, second guide slot; 622, second transmission member; 622a, inclined surface; 70, mattress; 71, first cushion body; 72, second cushion body; 73, third cushion body. DETAILED DESCRIPTION

[0041] In order to make the above objectives, features and advantages of the present application more apparent, the specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be practiced in a number of different manners other than those described herein, and it is understood that similar modifications can be made by one skilled in the art without departing from the spirit of the present application, and therefore the present application is not limited to the specific embodiments disclosed below.

[0042] An embodiment of the present application provides a foldable baby crib which can be switched between an unfolded state and a folded state. In the folded state, the foldable baby crib has a small volume, which is beneficial to reduce the occupied space and facilitate carrying and storage. In the unfolded state, the foldable baby crib can provide a play or sleep space for an infant.

[0043] In combination Figure 1 and Figure 2 The foldable baby crib comprises a side frame 10, a surrounding rod assembly 20, a support assembly 30 and a first lock assembly 40.

[0044] Two side frames 10 are provided, and for the purpose of description, the two side frames 10 are referred to as "first side frame 10a" and "second side frame 10b" respectively. The first side frame 10a and the second side frame 10b are spaced apart along a first direction. The first direction is denoted by S1.

[0045] The first side frame 10a and the second side frame 10b each include a first support 11, a second support 12, a guardrail 13, and a reinforcing member 14.

[0046] The first support 11 and the second support 12 are spaced apart along a second direction. The first direction is perpendicular to the second direction. The second direction is denoted by S2.

[0047] The two ends of the guardrail 13 are connected to the upper portions of the first support 11 and the second support 12 respectively.

[0048] The two ends of the reinforcing member 14 are connected to the lower portions of the first support 11 and the second support 12 respectively.

[0049] Optionally, the first support 11, the second support 12, the guardrail 13, and the reinforcing member 14 are connected to form an integrated rectangular frame. In this way, the production and processing are facilitated, and the assembly of the foldable baby crib is also facilitated, thereby improving the assembly efficiency of the foldable baby crib.

[0050] In another embodiment, the first support 11 is detachably connected to the guardrail 13 and the reinforcing member 14, and the second support 12 is detachably connected to the guardrail 13 and the reinforcing member 14. In this way, the first side frame 10a and the second side frame 10b can be detached, which is conducive to reducing the packaging volume of the foldable baby crib and reducing the transportation cost.

[0051] The connection mode of each structure in the first side frame 10a and the second side frame 10b and the structure of the surrounding rod assembly 20 are not limited herein. As long as the first side frame 10a and the second side frame 10b can be close to each other during the folding of the foldable baby crib to meet the folding needs of the foldable baby crib.

[0052] Continuing to combine Figure 1 and Figure 2 The surrounding rod assembly 20 is provided with two, and the two surrounding rod assemblies 20 are arranged between the first side frame 10a and the second side frame 10b and spaced apart along the second direction. Understandably, the two ends of the two surrounding rod assemblies 20 in the second direction are connected between the first side frame 10a and the second side frame 10b.

[0053] Optionally, the surrounding rod assembly 20 is detachably connected to the first side frame 10a and the second side frame 10b. In this way, the foldable baby crib can be detached, which is conducive to reducing the packaging volume of the foldable baby crib and reducing the transportation cost.

[0054] Continuing to combineFigure 1 Each of the two rail assemblies 20 comprises a first rod 21 and a second rod 22. The first end of the first rod 21 is rotatably connected to the first side frame 10a, the first end of the second rod 22 is rotatably connected to the second side frame 10b, and the second end of the first rod 21 is rotatably connected to the second end of the second rod 22.

[0055] Optionally, the first rod 21 and the second rod 22 are hollow tubes. For example, the first rod 21 and the second rod 22 are both hollow circular tubes. In this way, the weight of the foldable crib can be reduced, and the cost can also be reduced. Of course, in another embodiment, the first rod 21 and the second rod 22 can also be solid rods.

[0056] The support assembly 30 is provided with two, and the two support assemblies 30 are arranged between the first side frame 10a and the second side frame 10b and are spaced apart along the second direction. One end of the support assembly 30 is connected to the first side frame 10a, and the other end of the support assembly 30 is connected to the second side frame 10b.

[0057] Optionally, the support assembly 30 is detachably connected to the first side frame 10a and the second side frame 10b. In this way, the foldable crib can be disassembled, which is beneficial to reducing the packaging volume of the foldable crib and reducing transportation costs.

[0058] In combination Figure 3 The support assembly 30 comprises a third rod 31, a fourth rod 32, and a folding joint 33. The first end of the third rod 31 is rotatably connected to the first side frame 10a. The first end of the fourth rod 32 is rotatably connected to the second side frame 10b. The second end of the third rod 31 is rotatably connected to the second end of the fourth rod 32 through the folding joint 33.

[0059] Optionally, the third rod 31 and the fourth rod 32 are hollow tubes. For example, the third rod 31 and the fourth rod 32 are both hollow circular tubes. In this way, the weight of the foldable crib can be reduced, and the cost can also be reduced. Of course, in another embodiment, the third rod 31 and the fourth rod 32 can also be solid rods.

[0060] It should be noted that for the foldable crib which has a cuboid frame in the unfolded state, the parts connected by the rail assembly 20 and the support assembly 30 can share structural members. For example, the reinforcing member 14 in the rail assembly 20 can also be part of the support assembly 30.

[0061] In some embodiments, the reinforcing member 14 can also be removed from the side frame 10 and used as part of the support assembly 30. When the support assembly 30 is installed between the first side frame 10a and the second side frame 10b, the reinforcing member 14 is located between the first support 11 and the second support 12. In some embodiments, the reinforcing member 14 can also be removed from the side frame 10 and used as part of the support assembly 30. When the support assembly 30 is installed between the first side frame 10a and the second side frame 10b, the reinforcing member 14 is located between the first support 11 and the second support 12.

[0062] In this embodiment, the two ends of the support assembly 30 can each be provided with a reinforcing member 14, and the reinforcing member 14 on each side is correspondingly mounted to the first side frame 10a and the second side frame 10b.

[0063] Further, the mounting height of the reinforcing member 14 at the two ends of the support assembly 30 on the first side frame 10a and the second side frame 10b can be adjusted, so that the mounting height of the support assembly 30 can be adjusted.

[0064] It should be noted that the upward lifting and downward placing of the support assembly 30 enable the foldable baby bed to achieve different functions. For example, when the foldable baby bed is placed beside an adult bed, the support assembly 30 is lifted upward, so that the adult and the baby are at substantially the same height, which facilitates the adult to take care of the baby, and at this time, the foldable baby bed can achieve the function of providing a resting place. For another example, the support assembly 30 is placed downward, so that the baby plays in the foldable baby bed without falling out, and at this time, the foldable baby bed can achieve the function of providing a play place, i.e., a play bed.

[0065] In order to prevent the foldable baby bed from being mistakenly folded during use, the foldable baby bed of the present application also has a locking function for locking the unfolded state and an unlocking function for unlocking.

[0066] For ease of understanding, the unfolded and locked state of the foldable baby bed is referred to as a "locked state", and the state of the foldable baby bed after being unlocked for folding is referred to as an "unlocked state".

[0067] In combination Figure 2 and Figure 3 When the foldable baby bed is in the unfolded state, the first lock assembly 40 is used to limit the relative rotation of the first rod member 21 and the second rod member 22.

[0068] It should be noted that the locking of the foldable baby bed can be understood as the first lock assembly 40 being in a locked state, and correspondingly, the unlocking of the foldable baby bed can be understood as the first lock assembly 40 being in an unlocked state.

[0069] In combination Figure 1 and Figure 2 The first lock assembly 40 is arranged at the second end of the first rod member 21 and the second end of the second rod member 22, and the first rod member 21 is rotatably connected to the second rod member 22 through the first lock assembly 40.

[0070] In combination Figure 1 When the first lock assembly 40 is in the unlocked state, the first rod member 21 and the second rod member 22 can both rotate relative to the side frame 10, so that the foldable baby bed can be folded and unfolded.

[0071] In combination Figure 2When the first lock assembly 40 is in the locked state, the first rod member 21 and the second rod member 22 are coaxially arranged, and the first rod member 21 and the second rod member 22 cannot rotate relative to each other, so that the first rod member 21 and the second rod member 22 are both fixed relative to the side frame 10, so that the foldable baby crib can be stably kept in the unfolded state, and the use safety is improved.

[0072] Continuing to combine Figure 2 The first lock assembly 40 is provided with two. One of the first lock assemblies 40 is arranged at the second end of one of the first rod members 21 and the second end of the second rod member 22 corresponding thereto, and the other first lock assembly 40 is arranged at the second end of the other first rod member 21 and the second end of the second rod member 22 corresponding thereto.

[0073] Combining Figures 3 to 5 The first lock assembly 40 includes a first locking member 41, a second locking member 42, a housing 43, a first sliding shaft 44, a second sliding shaft 45, and a sliding seat 46.

[0074] The first locking member 41 is connected to the second end of the first rod member 21, that is, the first locking member 41 is connected to the end of the first rod member 21 close to the second rod member 22. The second locking member 42 is connected to the second end of the second rod member 22, that is, the second locking member 42 is connected to the end of the second rod member 22 close to the first rod member 21.

[0075] The housing 43 is connected between the first rod member 21 and the second rod member 22, and the first rod member 21 and the second rod member 22 are both rotationally connected to the housing, so that the second end of the first rod member 21 and the second end of the second rod member 22 are rotationally connected by the housing 43.

[0076] Combining Figure 3 And Figure 4 The housing 43 is provided with a first avoiding opening 431 on the side facing the first side frame 10a, a second avoiding opening 432 on the side facing the second side frame 10b, a third avoiding opening 433 on the side away from the support assembly 30, and a fourth avoiding opening 434 in communication with the first avoiding opening 431 and the second avoiding opening 432.

[0077] During assembly of the foldable baby crib, the second end of the first rod member 21 can be arranged in the housing 43 through the first avoiding opening 431, and the second end of the second rod member 22 can be arranged in the housing 43 through the second avoiding opening 432. In this way, the first avoiding opening 431 and the second avoiding opening 432 can play a role of giving way, so that the first rod member 21 and the second rod member 22 are conveniently connected to the housing 43.

[0078] When the foldable baby crib is folded, combining Figure 1 And Figure 4The second end of the first rod 21 rotates downwardly, and in the process of rotation, the second end of the first rod 21 rotates from the first avoiding opening 431 to the third avoiding opening 433. Meanwhile, the second end of the second rod 22 rotates downwardly, and in the process of rotation, the second end of the second rod 22 rotates from the second avoiding opening 432 to the fourth avoiding opening 434. When the foldable baby crib is completely folded, the first rod 21 is arranged in the third avoiding opening 433, and the second rod 22 is arranged in the fourth avoiding opening 434, so that the third avoiding opening 433 and the fourth avoiding opening 434 can play a role of giving way to avoid interference of the shell 43 on the folding of the surrounding rod assembly 20.

[0079] In some embodiments, in combination Figure 4 and Figure 5 The shell 43 is sleeved on the second end of the first rod 21 and the second end of the second rod 22, so that the shell 43 can be used to coat the second end of the first rod 21 and the second end of the second rod 22, improve the appearance aesthetics of the foldable baby crib when in use, and reduce the probability of being scratched by the first rod 21 and the second rod 22.

[0080] The first sliding shaft 44 and the second sliding shaft 45 are both in sliding connection with the shell 43; wherein the first sliding shaft 44 is used to cooperate with the first locking piece 41 to limit the rotation of the first rod 21 relative to the shell 43; and the second sliding shaft 45 is used to cooperate with the second locking piece 42 to limit the rotation of the second rod 22 relative to the shell 43. In this way, the rotation of the first rod 21 and the second rod 22 relative to the shell 43 can be limited by the first sliding shaft 44 and the second sliding shaft 45, so that the first rod 21 and the second rod 22 cannot rotate relative to each other, and therefore the surrounding rod assembly 20 cannot be folded under the locking of the first locking assembly 40.

[0081] In this embodiment, the unlocking of the first locking assembly 40 can be realized by the sliding seat 46. For the convenience of description, the position of the sliding seat 46 for realizing the unlocking of the first locking assembly 40 is referred to as “unlocking position”, that is, when the sliding seat 46 moves to the unlocking position relative to the shell 43, the first sliding shaft 44 and the second sliding shaft 45 respectively leave the first locking piece 41 and the second locking piece 42 to release the locking of the first rod 21 and the second rod 22.

[0082] In combination Figure 4 and Figure 5The sliding seat 46 is in sliding connection with the housing 43, and when the sliding seat 46 slides relative to the housing 43, the sliding seat 46 drives the first sliding shaft 44 and the second sliding shaft 45 to slide relative to the housing 43, so that the first sliding shaft 44 and the second sliding shaft 45 are respectively away from the first locking piece 41 and the second locking piece 42, to release the locking of the first rod 21 and the second rod 22, so that the first rod 21 and the second rod 22 restore the freedom of rotation relative to the housing 43, and then achieve the effect of releasing the locking of the first locking assembly 40 on the first rod 21 and the second rod 22. In this way, the first rod 21 and the second rod 22 can rotate relative to each other to adapt to the folding needs of the surrounding rod assembly 20.

[0083] Further, the housing 43 is provided with a first sliding groove 435 and a second sliding groove 436. The sliding seat 46 is provided with a first inclined groove 461 and a second inclined groove 462. The first inclined groove 461 and the second inclined groove 462 correspond to the first sliding groove 435 and the second sliding groove 436 respectively, and the first inclined groove 461 intersects the extension direction of the first sliding groove 435, and the second inclined groove 462 intersects the extension direction of the second sliding groove 436.

[0084] In combination Figures 4 to 6 The first sliding shaft 44 is arranged in the first sliding groove 435 and the first inclined groove 461, and the second sliding shaft 45 is arranged in the second sliding groove 436 and the second inclined groove 462. When the sliding seat 46 slides relative to the housing 43, the groove wall of the first inclined groove 461 pushes the first sliding shaft 44 to slide along the first sliding groove 435 away from the first locking piece 41, and the groove wall of the second inclined groove 462 pushes the second sliding shaft 45 to slide along the second sliding groove 436 away from the second locking piece 42. In this way, the first sliding shaft 44 and the second sliding shaft 25 respectively release the locking of the first locking piece 41 and the second locking piece 42, so that the first rod 21 and the second rod 22 can rotate relative to the housing 43 to adapt to the folding needs of the foldable crib.

[0085] It should be noted that when the sliding seat 46 is driven to slide relative to the housing 43 to achieve unlocking, the first inclined groove 461 and the second inclined groove 462 of the sliding seat 46 make the first sliding shaft 44 and the second sliding shaft 45 close to each other, so as to achieve the unlocking of the first sliding shaft 44 and the second sliding shaft 25 relative to the first locking piece 41 and the second locking piece 42 respectively.

[0086] Further, the first locking piece 41 is provided with a first limiting groove 411. In the locking state of the first locking assembly 40, the first sliding shaft 44 is in limiting cooperation with the first limiting groove 411, and the first locking piece 41 is not easy to be separated from the first sliding shaft 44 due to the possible small amplitude rotation of the first rod 21 and the second rod 22, thereby improving the stability in the locking state.

[0087] The second locking member 42 is provided with a second limiting slot 421. When the first locking assembly 40 is in the locked state, the second sliding shaft 45 is in limiting cooperation with the second limiting slot 421, and the second locking member 42 is not easily separated from the second sliding shaft 45 due to the possible slight rotation of the second rod member 21 and the second rod member 22, thereby improving the stability in the locked state.

[0088] In some embodiments, an elastic reset member is arranged between the sliding seat 46 and the shell 43, and is used to drive the sliding seat 46 to move back relative to the shell 43. When the elastic reset member drives the sliding seat 46 to move back relative to the shell 43, the sliding seat 46 drives the first sliding shaft 44 and the second sliding shaft 45 to move away from each other.

[0089] In the process of switching the foldable baby crib from the folded state to the unfolded state, when the first locking member 41 and the second locking member 42 are respectively rotated relative to the shell 43 to pass through the first sliding shaft 44 and the second sliding shaft 45, the elastic reset member drives the sliding seat 46 to drive the first sliding shaft 44 and the second sliding shaft 45 to move away from each other, so that the first sliding shaft 44 is in limiting cooperation with the first limiting slot 411, and the second sliding shaft 45 is in limiting cooperation with the second limiting slot 421. Thus, when the foldable baby crib is unfolded, the first locking assembly 40 can conveniently lock the surrounding rod assembly 20, so that the locking operation of the first locking assembly 40 is simple and reliable.

[0090] The rotational connection between the first rod member 21 and the second rod member 22 and the shell 43 can have various possible arrangements.

[0091] For example, in some embodiments, in combination with Figures 3 to 5 The shell 43 is provided with a first connecting hole 437, and the second end of the first rod member 21 is provided with a second connecting hole 211. The first connecting hole 437 and the second connecting hole 211 are opposite to each other and are provided with a first rotational connecting member. In this way, the first rod member 21 is rotationally connected to the shell 43 by the first rotational connecting member.

[0092] The shell 43 is further provided with a third connecting hole 438. The second end of the second rod member 22 is provided with a fourth connecting hole 221, the second locking member 42 is provided with a second avoiding hole 422, the third connecting hole 438 and the fourth connecting hole 221 are opposite to each other and are provided with a second rotational connecting member. In this way, the second rod member 22 is rotationally connected to the shell 43 by the second rotational connecting member.

[0093] In some embodiments, the first locking member 41 covers the second connecting hole 211 at the position where the first locking member 41 extends into the first rod member 21, and the first locking member 41 is provided with a first avoiding hole 412. The first rotating connecting member is arranged to pass through the first connecting hole 437, the second connecting hole 211 and the first avoiding hole 412 in communication, so that the first rotating connecting member can cooperate with the first avoiding hole 412 to prevent the first locking member 41 from being easily detached from the first rod member 21, thereby improving the stability of the first locking member 41 when the first rod member 21 rotates relative to the shell 43.

[0094] The second locking member 42 covers the second connecting hole 221 at the position where the second locking member 42 extends into the second rod member 22, and the second locking member 42 is provided with a second avoiding hole 422. The second rotating connecting member is arranged to pass through the third connecting hole 438, the fourth connecting hole 221 and the second avoiding hole 422 in communication, so that the second rotating connecting member can cooperate with the second avoiding hole 422 to prevent the second locking member 42 from being easily detached from the second rod member 22, thereby improving the stability of the second locking member 42 when the second rod member 22 rotates relative to the shell 43.

[0095] It should be noted that when the first lock assembly 40 is in the unlocked state, the foldable baby crib can be folded under the gravity of some structures of the foldable baby crib itself, or can be folded by, for example, the user pressing the side frame 10 inward.

[0096] For example, when the first lock assembly 40 is unlocked, the second ends of the first rod member 21 and the second rod member 22 rotate downward under the gravity, so that the first ends of the first rod member 21 and the second rod member 22 are folded toward the middle. At the same time, the first side frame 10a and the second side frame 10b are close to each other, and the second ends of the third rod member 31 and the fourth rod member 32 are flipped upward at the folding joint 33 position, so that the first ends of the third rod member 31 and the fourth rod member 32 are folded toward the middle. Based on this, as the first side frame 10a and the second side frame 10b are close to each other, the folding of the entire foldable baby crib is finally realized, which is conducive to reducing the volume of the foldable baby crib and reducing the space required for storing the foldable baby crib. In addition, the folding steps of the foldable baby crib can be simplified, and the folding efficiency is improved.

[0097] In some embodiments, when the foldable baby crib is completely folded, the first side frame 10a and the second side frame 10b are attached to each other.

[0098] In some embodiments, the foldable crib further comprises a second lock assembly 50. The second lock assembly 50 is configured to limit the relative rotation between the third rod member 31 and the fourth rod member 32 when the foldable crib is in the unfolded state. When the second lock assembly 50 is in the locked state, the third rod member 31 and the fourth rod member 32 are coaxially arranged and cannot rotate relative to each other, so that the third rod member 31 and the fourth rod member 32 are both fixed relative to the side frame 10, so that the foldable crib is stably maintained in the unfolded state, thereby improving the safety of use.

[0099] In some embodiments, the foldable crib further comprises a second lock assembly 50. The second lock assembly 50 is configured to limit the relative rotation between the third rod member 31 and the fourth rod member 32 when the foldable crib is in the unfolded state. When the second lock assembly 50 is in the locked state, the third rod member 31 and the fourth rod member 32 are coaxially arranged and cannot rotate relative to each other, so that the third rod member 31 and the fourth rod member 32 are both fixed relative to the side frame 10, so that the foldable crib is stably maintained in the unfolded state, thereby improving the safety of use. Figures 7 to 9 In some embodiments, the second lock assembly 50 comprises a locking member 51 and a reset elastic member 52.

[0100] In some embodiments, the end of the third rod member 31 close to the first side frame 10a is connected with a mounting seat 15, the third rod member 31 is rotatably connected with the mounting seat 15, and the mounting seat 15 is connected with the first side frame 10a. In this way, the third rod member 31 is rotatably connected with the first side frame 10a through the mounting seat 15.

[0101] In some embodiments, a first mounting hole 15a is formed in the mounting seat 15, a second mounting hole 31a is formed in the third rod member 31 corresponding to the position of the first mounting hole 15a, and a rotating shaft is arranged through the first mounting hole 15a and the second mounting hole 31a, so as to rotatably connect the third rod member 31 with the mounting seat 15 through the rotating shaft.

[0102] In some embodiments, the end of the reinforcing member 14 is connected with the mounting seat 15, so that the reinforcing member 14 is connected with the third rod member 31.

[0103] In some embodiments, the locking member 51 is movably connected with the mounting seat 15. Such movable connection includes but is not limited to that the locking member 51 is directly movably connected with the mounting seat 15. In some embodiments, the locking member 51 can also be movably connected with the reinforcing member 14, so that when the end of the reinforcing member 14 is connected with the mounting seat 15, the locking member 51 is movably connected with the mounting seat 15.

[0104] In some embodiments, the foldable crib further comprises a second lock assembly 50. The second lock assembly 50 is configured to limit the relative rotation between the third rod member 31 and the fourth rod member 32 when the foldable crib is in the unfolded state. When the second lock assembly 50 is in the locked state, the third rod member 31 and the fourth rod member 32 are coaxially arranged and cannot rotate relative to each other, so that the third rod member 31 and the fourth rod member 32 are both fixed relative to the side frame 10, so that the foldable crib is stably maintained in the unfolded state, thereby improving the safety of use. Figures 7 to 9 When the foldable crib is in the unfolded state, the locking member 51 can extend into the third rod member 31 under the elastic force of the reset elastic member 52, so as to limit the rotation of the third rod member 31 relative to the mounting seat 15, and then the third rod member 31 cannot rotate relative to the fourth rod member 32, so as to achieve the effect of locking the rotation freedom degrees of the third rod member 31 and the fourth rod member 32.

[0105] In some embodiments, the foldable crib comprises the first lock assembly 40 and the second lock assembly 50, and the second lock assembly 50 can be synchronously unlocked together with the first lock assembly 40.

[0106] For example, in some embodiments, the foldable crib further comprises a linkage unlocking mechanism 60. Figures 7 to 9 The linkage unlocking mechanism 60 comprises a traction member 61 and a transmission assembly 62.

[0107] One end of the traction member 61 is connected with the first sliding shaft 44, and the other end is connected with the locking member 51 through the transmission assembly 62.

[0108] The transmission assembly 62 is used to move the locking member 51 away from the third lever 31 under the traction of the traction member 61, so that the locking member 51 overcomes the elastic force of the reset elastic member 52 and moves out of the third lever 31. In this way, the locking member 51 releases the locking of the third lever 31, so that the third lever 31 restores the rotational freedom of rotation relative to the mounting base 15, and then the support assembly 30 can be folded.

[0109] In combination Figure 9 The reinforcing member 14 is a hollow pipe body, and the pipe wall near the end portion is provided with a first guide slot 14a, and the length direction of the first guide slot 14a is the same as the movement direction of the locking member 51, that is, the same as the extension direction of the third lever 31.

[0110] In combination Figure 10 The transmission assembly 62 includes a first transmission member 621 and a second transmission member 622. The first transmission member 621 is provided with a guide hole 621a and a second guide slot 621b penetrating the side wall of the guide hole 621a, and the end of the locking member 51 away from the third lever 31 is slidingly fitted in the guide hole 621a, and the locking member 51 is connected with a guide pin 51a.

[0111] The guide pin 51a is provided in the first guide slot 14a and the second guide slot 621b. The length direction of the second guide slot 621b intersects with the length direction of the first guide slot 14a, and the first transmission member 621 is telescopically arranged in the reinforcing member 14, so that the slot wall of the second guide slot 621b pushes the guide pin 51a to move along the first guide slot 14a.

[0112] When the guide pin 51a moves along the first guide slot 14a, it drives the locking member 51 to move out of the third lever 31, and then the locking member 51 releases the locking of the third lever 31, so that the third lever 31 restores the rotational freedom of rotation relative to the mounting base 15, and then the support assembly 30 can be folded.

[0113] It should be noted here that the second transmission member 622 only needs to be able to transmit power to the first transmission member 621 under the traction of the traction member 61, so that the first transmission member 621 drives the guide pin 51a to move along the first guide slot 14a away from the third lever 31.

[0114] For example, in combination Figures 8 to 10The second transmission member 622 is connected with the traction member 61 and is driven by the traction member 61 to move upward along the vertical direction (i.e. the direction perpendicular to S1 and S2) relative to the mounting base 15. In some embodiments, the mounting base 15 is provided with a sleeve hole 15b extending along the vertical direction, and the second transmission member 622 is installed at the sleeve hole 15b and is capable of moving upward at the sleeve hole 15b under the driving of the traction member 61.

[0115] The side of the second transmission member 622 facing the first transmission member 621 is provided with a slope 622a, and part of the structure of the first transmission member 621 protrudes from the reinforcing member 14 and abuts against the slope 622a.

[0116] When the first sliding shaft 44 drives the second transmission member 622 to move relative to the mounting base 15, the slope 622a of the second transmission member 622 pushes the first transmission member 621 into the reinforcing member 14, so that the first transmission member 621 drives the guide pin 51a to move along the first guide slot 14a away from the third lever 31. Then the guide pin 51a moves along the first guide slot 14a and drives the locking member 51 to move out of the third lever 31, so that the locking member 51 releases the locking of the third lever 31, and the third lever 31 can rotate relative to the first side frame 10a.

[0117] It can be understood that in the embodiments in which the foldable baby crib comprises the first lock assembly 40 and the second lock assembly 50, since the traction member 61 realizes the unlocking operation of the second lock assembly 50 during the unlocking process of the first lock assembly 40, the synchronous unlocking of the first lock assembly 40 and the second lock assembly 50 is realized, so that the first lock assembly 40 and the second lock assembly 50 are both in the unlocked state. In this way, the first lever 21 and the second lever 22 can both rotate relative to the side frame 10, and the third lever 31 and the fourth lever 32 can both rotate relative to the side frame 10, so that the foldable baby crib can be folded and collapsed.

[0118] This unlocking operation is simple, and only needs to place the sliding seat 46 relative to the shell 43 in the unlocking position to realize the unlocking of the first lock assembly 40 and the second lock assembly 50, and then the surrounding rod assembly 20 and the support assembly 30 can be collapsed. Since only the sliding of the sliding seat 46 relative to the shell 43 is needed during the unlocking process to realize the synchronous unlocking of the first lock assembly 40 and the second lock assembly 50, without the need to unlock the first lock assembly 40 and the second lock assembly 50 respectively, the unlocking operation efficiency is improved, and the collapsing operation is simplified.

[0119] In some embodiments, the traction member 61 is movably arranged through the first locking member 41.

[0120] For example, in combination with Figures 11 to 13The first locking member 41 is provided with a wire passing hole 413, and the traction member 61 is movably arranged through the wire passing hole 413. In this way, when the traction member 61 drags the locking member 51 under the drive of the first sliding shaft 44, the traction member 61 will not be interfered by the first locking member 41.

[0121] In the embodiments of the present application, the traction member 61 can be a linkage rope. Of course, in another embodiment, the traction member 61 can also be other flexible traction structures, which are not limited herein.

[0122] Optionally, the linkage rope comprises a steel wire rope and a protective sleeve. The length of the steel wire rope is less than the length of the protective sleeve, and the steel wire rope is movably arranged in the protective sleeve and can move along the length direction of the protective sleeve relative to the protective sleeve.

[0123] Taking the example that the traction member 61 comprises a steel wire rope, one end of the steel wire rope is connected with the sliding seat 46, and the other end of the steel wire rope is connected with the first locking assembly 40. In this way, the steel wire rope plays a linkage role, and the protective sleeve plays a positioning role.

[0124] In some embodiments, one end of the surrounding rod assembly 20 is movably connected with the first side frame 10a, and the other end of the surrounding rod assembly 20 is movably connected with the second side frame 10b. The surrounding rod assembly 20 can move along the height direction of the first side frame 10a and the second side frame 10b, so as to realize the lifting of the surrounding rod assembly 20. When in use, the surrounding rod assembly 20 can be pulled down, so as to conveniently put the infant into the foldable baby bed and also conveniently take the infant out of the foldable baby bed. When the foldable baby bed is placed beside an adult, the surrounding rod assembly 20 can be pulled down, so as to conveniently take care of the infant without getting up. In addition, under normal circumstances, the surrounding rod assembly 20 can be pulled up, so as to ensure the safety of the infant.

[0125] One end of the supporting assembly 30 is movably connected with the first side frame 10a, and the other end of the supporting assembly 30 is movably connected with the second side frame 10b. When in use, the supporting assembly 30 can move along the height direction of the first side frame 10a and the second side frame 10b, so as to realize the lifting of the supporting assembly 30.

[0126] In some embodiments, the first side frame 10a and the second side frame 10b can be telescopic along the length direction thereof. Specifically, the first supporting member 11 and the second supporting member 12 are telescopic rods, the first supporting member 11 can be telescopic along the length direction thereof, and the second supporting member 12 can be telescopic along the length direction thereof. When the foldable baby bed is folded and collapsed, the first supporting member 11 and the second supporting member 12 can be contracted, so as to reduce the height of the foldable baby bed, thereby reducing the packaging and transportation space and lowering the transportation cost without disassembling the foldable baby bed.

[0127] It should be noted that the foldable baby crib can be supported on the ground by feet or wheels.

[0128] Again in combination Figure 2 The foldable baby crib further comprises a mattress 70. The mattress 70 is arranged on the support assembly 30. In use, the baby is placed on the mattress 70, and the mattress 70 supports the baby.

[0129] In some embodiments, the mattress 70 comprises a first pad 71, a second pad 72 and a third pad 73.

[0130] The first pad 71, the second pad 72 and the third pad 73 are all hard pads. The first pad 71 is arranged between the first side frame 10a and the folding joint 33, the second pad 72 is arranged between the second side frame 10b and the folding joint 33, and the third pad 73 is arranged corresponding to the folding joint 33. The first pad 71 is connected to the third pad 73 by a soft fabric, and the second pad 72 is connected to the third pad 73 by a soft fabric. In this way, when the foldable baby crib is folded, the mattress 70 does not need to be disassembled, so that the mattress 70 can be folded together with the bed frame, simplifying the unfolding and folding steps of the foldable baby crib and improving the unfolding and folding efficiency of the foldable baby crib.

[0131] In some embodiments, the bottom of the first side frame 10a and the second side frame 10b is provided with a moving wheel. In this way, the transfer of the foldable baby crib is facilitated.

[0132] Further, the moving wheel is provided with a brake. In this way, the foldable baby crib can be stably stopped at the use location. Alternatively, the brake can be manually controlled or controlled by stepping.

[0133] In the description of the present application, it should be understood that if these terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship of the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0134] In addition, the terms "first", "second", and the like, if any, are used herein for descriptive purposes only and should not be construed as indicating or implying relative importance or identifying the number of the indicated technical characteristics. Thus, a feature with the "first", "second" limitation can explicitly or implicitly include at least one of the features. In the description of the present application, if the term "plurality" appears, the meaning of "plurality" is at least two, for example, two, three, etc., unless otherwise explicitly specified and limited.

[0135] In the present application, unless otherwise explicitly specified and limited, if the terms "mounting", "connecting", "connecting", "fixing" and the like appear, these terms should be interpreted broadly. For example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0136] In the present application, unless otherwise explicitly specified and limited, if the first feature is described as "on" or "under" the second feature, etc., it can mean that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be the first feature directly above or obliquely above the second feature, or it can only mean that the first feature is higher than the second feature in horizontal height. The first feature "below", "below" and "below" the second feature can be the first feature directly below or obliquely below the second feature, or it can only mean that the first feature is lower than the second feature in horizontal height.

[0137] It should be noted that if an element is referred to as "fixed to" or "provided on" another element, it can be directly on another element or there can be a middle element. If an element is considered to be "connected" to another element, it can be directly connected to another element or there can be a middle element. If present, the terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used in the present application are only for illustrative purposes and do not represent the only implementation.

[0138] The technical features of the above-described embodiments can be combined in any manner. In order to make the description concise, not all possible combinations of the technical features in the above-described embodiments are described, but as long as the combination of the technical features does not exist Contradiction, it should be considered within the scope of the present application.

[0139] The above embodiments only express several implementation ways of the present application, and the description is relatively specific and detailed, but it should not be understood as a limitation to the patent scope of the application. It should be pointed out that for ordinary skilled persons in the art, several modifications and improvements can be made without departing from the concept of the present application, which all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. A foldable crib, comprising: The application relates to a foldable baby bed. The foldable baby bed comprises a side frame, a surrounding rod assembly and a support assembly. The side frame comprises a first side frame and a second side frame which are oppositely arranged and spaced apart. The surrounding rod assembly is arranged between the first side frame and the second side frame and comprises a first rod and a second rod.

2. The foldable crib of claim 1, wherein, The first end of the first rod is rotatably connected to the first side frame.

3. The foldable crib of claim 1 or 2, wherein, The first end of the second rod is rotatably connected to the second side frame.

4. The foldable crib of claim 3, wherein, The first lock assembly comprises a first locking piece, a second locking piece, a housing, a first sliding shaft, a second sliding shaft and a sliding seat. The first locking piece is connected to the second end of the first rod. The second locking piece is connected to the second end of the second rod. The housing is connected between the first rod and the second rod and the first rod and the second rod are rotatably connected to the housing. The first sliding shaft and the second sliding shaft are slidably connected to the housing. The first sliding shaft is used for cooperating with the first locking piece. The second sliding shaft is used for cooperating with the second locking piece. When the sliding seat moves to an unlocking position relative to the housing, the first sliding shaft and the second sliding shaft respectively leave the first locking piece and the second locking piece. The support assembly is arranged between the first side frame and the second side frame and comprises a third rod, a fourth rod and a folding joint. The first end of the third rod is rotatably connected to the first side frame. The first end of the fourth rod is rotatably connected to the second side frame. The second end of the third rod and the second end of the fourth rod are rotatably connected through the folding joint. When the first lock assembly is unlocked, the second end of the first rod and the second end of the second rod rotate towards the support assembly. The first end of the first rod and the first end of the second rod are folded towards the middle. The second end of the third rod and the second end of the fourth rod rotate towards the surrounding rod assembly. The second end of the third rod and the second end of the fourth rod are folded towards the middle. The first side frame and the second side frame move towards each other. The housing is provided with a first sliding groove and a second sliding groove. The sliding seat is provided with a first inclined groove and a second inclined groove. The first inclined groove and the second inclined groove correspond to the first sliding groove and the second sliding groove respectively. The first sliding groove and the first inclined groove are intersected. The second sliding groove and the second inclined groove are intersected. The first sliding shaft is arranged in the first sliding groove and the first inclined groove. The second sliding shaft is arranged in the second sliding groove and the second inclined groove. When the sliding seat slides relative to the housing, the groove wall of the first inclined groove pushes the first sliding shaft to slide along the first sliding groove and leave the first locking piece. The groove wall of the second inclined groove pushes the second sliding shaft to slide along the second sliding groove and leave the second locking piece. The first locking piece is provided with a first limiting groove. When the first lock assembly is in a locking state, the first sliding shaft is limitedly matched with the first limiting groove. The second locking piece is provided with a second limiting groove. When the first lock assembly is in a locking state, the second sliding shaft is limitedly matched with the second limiting groove. And / or, the second locking member is provided with a second limiting slot, and the second sliding shaft is in limiting fit with the second limiting slot when the first locking assembly is in the locked state.

5. The foldable crib of claim 3, wherein, An elastic reset member is arranged between the sliding seat and the shell, and is used to drive the sliding seat to move back relative to the shell, and when the elastic reset member drives the sliding seat to move back relative to the shell, the sliding seat drives the first sliding shaft and the second sliding shaft to move away from each other.

6. The foldable crib of claim 2, wherein, The foldable crib further comprises a second locking assembly, the second locking assembly comprising a locking member and a reset elastic member, an end of the third rod member close to the first side frame is connected with a mounting seat, the third rod member is rotationally connected to the mounting seat, and the mounting seat is connected with the first side frame; when the foldable crib is in the unfolded state, the locking member can extend into the third rod member under the elastic force of the reset elastic member to limit the rotation of the third rod member relative to the mounting seat.

7. The foldable crib of claim 6, wherein, The foldable crib further comprises a linkage unlocking mechanism, the linkage unlocking mechanism comprising a traction member and a transmission assembly, one end of the traction member is connected with the first sliding shaft, and the other end is connected with the locking member through the transmission assembly, and the transmission assembly is used to move the locking member away from the third rod member under the traction of the traction member, so that the locking member overcomes the elastic force of the reset elastic member and moves out of the third rod member.

8. The foldable crib of claim 7, wherein, The surrounding rod assembly or the supporting assembly comprises a reinforcing member, an end of the reinforcing member is connected with the mounting seat, the third rod member is rotationally connected to the mounting seat, the reinforcing member is a hollow pipe body, and a first guide slot is arranged on the pipe wall close to the end, and the length direction of the first guide slot is the same as the movement direction of the locking member; The transmission assembly comprises a first transmission member and a second transmission member, the first transmission member is provided with a guide hole and a second guide slot penetrating the side wall of the guide hole, one end of the locking member away from the third rod member is in sliding fit with the guide hole, and a guide pin is connected to the locking member, the guide pin is arranged in the first guide slot and the second guide slot, the length direction of the second guide slot intersects with the length direction of the first guide slot, and the first transmission member is telescopically arranged in the reinforcing member, so that the slot wall of the second guide slot pushes the guide pin to move along the first guide slot, and when the guide pin moves along the first guide slot, the guide pin drives the locking member to move out of the third rod member.

9. The foldable crib of claim 8, wherein, The second transmission member is connected with the traction member and can move upward relative to the mounting seat in the vertical direction under the traction of the traction member, one side of the second transmission member facing the first transmission member is provided with an inclined surface, and part of the structure of the first transmission member protrudes out of the reinforcing member and abuts against the inclined surface; when the first sliding shaft drives the second transmission member to move relative to the mounting seat through the traction member, the inclined surface pushes the first transmission member into the reinforcing member, so that the first transmission member drives the guide pin to move along the first guide slot away from the third rod member.

10. The foldable crib of claim 2, wherein, Also included is at least one of the following arrangements: The foldable crib further comprises a foldable mattress, which is arranged on the support assembly; Alternatively, one end of the rail assembly is movably connected to the first side frame, and the other end of the rail assembly is movably connected to the second side frame, and the rail assembly is movable along the height direction of the side frames, so that the rail assembly can be raised and lowered; Alternatively, one end of the support assembly is movably connected to the first side frame, and the other end of the support assembly is movably connected to the second side frame, and the support assembly is movable along the height direction of the side frames, so that the support assembly can be raised and lowered; Alternatively, the first side frame and the second side frame are both telescopic along their length directions; Alternatively, the rail assembly is detachably connected to the first side frame and the second side frame, and the support assembly is detachably connected to the first side frame and the second side frame.

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