Crib

Abstract

The present application provides a baby crib, comprising a frame, a locking mechanism and an unlocking mechanism. The frame comprises an upper frame, a lower frame and a side rod, the upper frame comprises a first horizontal part, a first vertical part and a first pivot part, the first vertical part is pivoted to the first horizontal part through the first pivot part and comprises a first pipe and a second pipe; the lower frame comprises a second horizontal part, a second vertical part and a second pivot part, the second vertical part is pivoted to the second horizontal part through the second pivot part and comprises a third pipe and a fourth pipe, and the third pipe and the fourth pipe are pivoted to each other; the side rod is connected to the first pivot part and the second pivot part. The locking mechanism is connected between the first pipe and the second pipe. The unlocking mechanism is arranged on the first horizontal part and comprises an operating part and a driving part, and the operating part is connected to the locking mechanism through the driving part.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of baby products, and more particularly to a baby bed capable of being folded easily. BACKGROUND

[0002] A baby bed is a quite common product related to babies, which is suitable for allowing a baby to lie in and providing a comfortable sleeping environment. Generally, the baby bed comprises a bed body for carrying a baby, a frame for supporting the bed body, and a cloth cover laid on the frame, wherein the frame comprises an upper frame for enclosing the activity or lying range of the baby, a foot frame supported on the ground, and side poles connecting the upper frame and the foot frame. When the baby is using the baby bed, the upper frame, the side poles and the foot frame are in a locked state to ensure that the whole baby bed will not collapse due to the movement of the baby such as turning over or rolling, or external disturbance.

[0003] However, when the baby finishes using the baby bed, the user needs to unlock the connection between the upper frame, the side poles and the foot frame in the locked state one by one, so that the upper frame, the side poles and the foot frame can change to a state of being movable relative to each other, and then the baby bed can be folded. This not only has a complicated procedure, but also wastes time. In addition, when a parent holds the baby in the baby bed with one hand, the frame cannot be folded by one hand, so the parent has to put the baby in another place before performing the folding operation, which further reduces the convenience of using the baby bed. SUMMARY

[0004] An object of the present application is to provide a baby bed capable of being folded easily.

[0005] To achieve the above object, the present application provides a baby bed comprising a frame body, a locking mechanism and an unlocking mechanism. The frame body comprises an upper frame, a lower frame and side poles. The upper frame comprises a first horizontal portion, a first vertical portion and a first pivot portion. The first vertical portion is pivoted to the first horizontal portion through the first pivot portion and comprises a first pipe and a second pipe. The lower frame comprises a second horizontal portion, a second vertical portion and a second pivot portion. The second vertical portion is pivoted to the second horizontal portion through the second pivot portion and comprises a third pipe and a fourth pipe. The third pipe and the fourth pipe are pivoted to each other. The side poles are connected to the first pivot portion and the second pivot portion. The locking mechanism is connected between the first pipe and the second pipe. When the locking mechanism is in a locked state, the first pipe and the second pipe are fixed relative to the locking mechanism. When the locking mechanism is in an unlocked state, the first pipe and the second pipe are rotatable relative to the locking mechanism. The unlocking mechanism is arranged on the first horizontal portion and comprises an operating member and a driving member. The operating member is connected to the locking mechanism through the driving member.

[0006] Preferably, the locking mechanism comprises a locking housing, a limiting member and a connecting member. The limiting member is fixed relative to the locking housing, and the connecting member is slidably arranged on the limiting member and selectively clamped on one of the first pipe and the second pipe.

[0007] Preferably, the other of the first pipe and the second pipe comprises an actuating member, a positioning portion and a reset elastic member. The driving member is connected to the operating member and the actuating member, and the reset elastic member is connected between one end of the actuating member and the positioning portion.

[0008] Preferably, the locking mechanism further comprises a linkage elastic member, and the linkage elastic member is arranged between the other end of the actuating member and the connecting member.

[0009] Preferably, the first transverse portion comprises a pipe body, and an operating hole is formed on the pipe body. The unlocking mechanism further comprises an unlocking housing and a protection member. The unlocking housing comprises an opening and a receiving hole, and the unlocking housing is sleeved on the pipe body. The protection member is arranged through the operating hole and partially exposed through the opening. The protection member comprises a stop portion, and the operating member is arranged through the receiving hole and selectively abuts against the stop portion.

[0010] Preferably, the unlocking mechanism further comprises a protection elastic member, and the unlocking housing further comprises a supporting portion. The protection elastic member is arranged between the protection member and the supporting portion.

[0011] Preferably, the supporting portion extends along the extension direction of the first transverse portion and is fixed relative to the pipe body. The protection elastic member is sleeved on the supporting portion, and the protection member is fixed relative to the protection elastic member.

[0012] Preferably, the unlocking mechanism further comprises an unlocking housing and at least one positioning member. The unlocking housing comprises at least one limiting portion, and the operating member comprises at least one sliding slot. The positioning member is slidably arranged in the limiting portion and the sliding slot, and the driving member is connected to the positioning member.

[0013] Preferably, a part of the driving member is embedded in the first transverse portion, and the extension direction of the sliding slot is inclined relative to the extension direction of the first transverse portion.

[0014] Preferably, the lower frame further comprises a third pivot portion and a bottom pipe. The third pivot portion is connected between the third pipe and the fourth pipe and comprises a pivot limiting portion. The bottom rod is arranged parallel to the second transverse portion, and one end of the bottom pipe is connected to the third pivot portion.

[0015] Preferably, the crib further comprises a lower frame locking mechanism. The lower frame locking mechanism comprises a third pivot portion, a locking member, and a lower frame operating member. The third pivot portion comprises a third tube housing and a fourth tube housing, wherein the third tube housing is fixed relative to the third tube and the fourth tube housing is fixed relative to the fourth tube. The third tube housing and the fourth tube housing jointly define a pivot cavity, and at least one of the third tube housing and the fourth tube housing forms an engaging feature in the pivot cavity. The locking member is slidably disposed in the pivot cavity and comprises an engaging portion and an extending portion. The engaging portion selectively engages the engaging feature, and the extending portion is connected to the engaging portion. The lower frame operating member is fixed relative to the extending portion.

[0016] Preferably, the second longitudinal portion and the lower frame locking mechanism are plural, and the crib further comprises a lower frame synchronizing mechanism. The lower frame synchronizing mechanism comprises a synchronizing member and a plurality of linking members. The synchronizing member is pivotably connected to the plurality of linking members, and the linking members are respectively fixed to the locking members of the lower frame locking mechanisms.

[0017] Preferably, the lower frame further comprises a bottom tube connected to the third pivot portion and arranged in parallel with the second transverse portion. At least a portion of the linking members and the synchronizing member are arranged in the bottom tube, and the lower frame operating member is sleeved on the bottom tube.

[0018] Preferably, the bottom tube forms a plurality of synchronizing limiting grooves, and the lower frame synchronizing mechanism further comprises a plurality of synchronizing locking members. The synchronizing locking members are respectively disposed in the corresponding locking members, the lower frame operating member, the linking members, and the synchronizing limiting grooves.

[0019] Preferably, the lower frame locking mechanism further comprises a pivot limiting member. The pivot limiting member forms a protrusion, one of the third tube housing and the fourth tube housing forms a pivot limiting groove, and the protrusion is embedded in the pivot limiting groove.

[0020] Preferably, the crib further comprises a lower frame locking mechanism. The lower frame locking mechanism comprises a third pivot portion and a lower frame operating member. The third pivot portion comprises a third tube housing and a fourth tube housing. The third tube housing is fixed relative to the third tube, and the fourth tube housing is fixed relative to the fourth tube. The third tube housing and the fourth tube housing jointly define a pivot cavity, and at least one of the third tube housing and the fourth tube housing forms an engaging feature in the pivot cavity. The lower frame operating member is pivotably connected to the third pivot portion and has a portion exposed relative to the third pivot portion. The lower frame operating member comprises an engaging portion, and the engaging portion selectively engages the engaging feature.

[0021] Preferably, the engaging feature is a long slot extending along at least one of the third tube housing and the fourth tube housing. At least one of the third tube housing and the fourth tube housing further forms a pivot slot in the pivot cavity. The pivot slot is arranged along a circumferential direction of at least one of the third tube housing and the fourth tube housing and is communicated with the long slot. The engaging portion is slidably disposed in the long slot and the pivot slot.

[0022] Preferably, the lower frame locking mechanism further comprises a lower frame elastic member, and the lower frame elastic member is disposed between the lower frame operating member and the third pivot portion along the extension direction of the engagement feature.

[0023] Preferably, the second longitudinal portion and the lower frame locking mechanism are plural, and the crib further comprises a plurality of lower frame synchronizing mechanisms. Each lower frame synchronizing mechanism corresponds to each lower frame locking mechanism and comprises a linkage member, the linkage member is pivotably disposed in the pivot cavity and is latched to the lower frame operating member. The lower frame further comprises a bottom tube, the bottom tube is connected to the third pivot portions of the lower frame locking mechanisms and is fixed relative to the linkage members of the lower frame synchronizing mechanisms.

[0024] Preferably, the crib further comprises a lower frame locking mechanism. The lower frame locking mechanism comprises a third pivot portion and a lower frame operating portion, the third pivot portion comprises a third tube housing and a fourth tube housing, wherein the third tube housing is fixed relative to the third tube, the fourth tube housing is fixed relative to the fourth tube, the third tube housing and the fourth tube housing collectively define a pivot cavity, and at least one of the third tube housing and the fourth tube housing forms an engagement feature in the pivot cavity; the lower frame operating portion comprises a latching member, a pivot member, and a plurality of lower frame operating members, wherein the latching member is slidably disposed in the pivot cavity and selectively latched to the engagement feature, the pivot member is pivotably connected to the latching member, and the lower frame operating members are connected to the pivot member and at least a portion thereof is exposed relative to the third pivot portion.

[0025] Preferably, the third pivot portion is plural, the lower frame further comprises a bottom tube, the bottom tube is connected between the third pivot portions, the pivot member is disposed in the bottom tube, and the end portion of the pivot member is disposed in the pivot cavity.

[0026] Preferably, the lower frame operating portion further comprises a plurality of linkage members, the linkage members are sleeved on the bottom tube and are fixed relative to the pivot member, and the lower frame operating members are disposed on the linkage members.

[0027] Preferably, the lower frame operating portion further comprises a lower frame elastic member, and the elastic member is disposed between the latching member and the third pivot portion.

[0028] Preferably, the lengths of the first tube and the second tube are equal, and the lengths of the third tube and the fourth tube are equal.

[0029] Preferably, the length of the first transverse portion is less than the length of the first longitudinal portion, and the length of the second transverse portion is less than the length of the second longitudinal portion.

[0030] The present application will become more apparent from the following description considered in connection with the accompanying drawings, which are intended to illustrate but not to limit the application. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 It is a perspective view of a first embodiment of the crib of the present application.

[0032] Figure 2 is a partial enlarged view of the upper frame in Figure 1

[0033] Figure 3 is a sectional view along the X-X section of the unlocking mechanism in Figure 2

[0034] Figure 4 is a sectional view of the locking mechanism in Figure 1

[0035] Figure 5 is a sectional view along the X-X section of the unlocking mechanism in Figure 2

[0036] Figure 6 is a sectional view of the locking mechanism in Figure 1

[0037] Figure 7 is a schematic view of the upper frame being unlocked and folded in Figure 1

[0038] Figure 8 is a partial enlarged view of the lower frame in Figure 1

[0039] Figure 9 is a perspective view of the crib during folding in Figure 1

[0040] Figure 10 is a perspective view of the crib after being completely folded in Figure 1

[0041] Figure 11 is a partial enlarged view of the upper frame of the second embodiment of the crib of the present application.

[0042] Figure 12 is an assembly exploded view of the crib in Figure 11

[0043] Figure 13 is a configuration view of part of the assembly in Figure 11

[0044] Figure 14 is a sectional view of the unlocking mechanism in Figure 11

[0045] Figure 15 is a sectional view of the unlocking mechanism in Figure 11 ​​​​​​​​​​​​​

[0046] Figure 16 This is a partially enlarged schematic diagram of the upper frame of the third embodiment of the crib of the present invention.

[0047] Figure 17 for Figure 16 A cross-sectional view.

[0048] Figure 18 This is an exploded view of some components of the fourth embodiment of the baby bed of the present invention.

[0049] Figure 19 for Figure 18 A magnified view of a portion of the image.

[0050] Figure 20 for Figure 18 A cross-sectional view of the lower frame locking mechanism in the locked state.

[0051] Figure 21 for Figure 18 A top-view diagram of the lower frame synchronization mechanism in the locked state.

[0052] Figure 22 for Figure 18 A cross-sectional view of the lower frame locking mechanism in the unlocked state.

[0053] Figure 23 for Figure 18 A top-down view of the lower frame synchronization mechanism in the unlocked state.

[0054] Figure 24 for Figure 18 A front view diagram of the lower frame locking mechanism in the crib's unfolded state.

[0055] Figure 25 for Figure 18 A front view diagram of the lower frame locking mechanism in the folded state of the crib.

[0056] Figure 26 This is a partially enlarged schematic diagram of the fifth embodiment of the baby crib of the present invention.

[0057] Figure 27 for Figure 26 A breakdown diagram of the components.

[0058] Figure 28 for Figure 27 A three-dimensional schematic diagram of the lower frame operation component.

[0059] Figure 29 for Figure 27 A three-dimensional schematic diagram of the fourth pipe shell and the linkage from another angle.

[0060] Figure 18 for Figure 30A right-side sectional view of the third pivot and lower frame operating parts of the crib in the unfolded state.

[0061] Figure 31 for Figure 26 A cross-sectional view of the right side of the third pivot and lower frame operating parts of the crib in the unlocked state.

[0062] Figure 31 This is a perspective view of the sixth embodiment of the baby crib of the present invention.

[0063] Figure 26 for Figure 27 A cross-sectional view of a baby crib.

[0064] Figure 32 to Figure 36 for Figure 32 An exploded view of the components of a baby crib.

[0065] Figure 33 for Figure 32 A front sectional view of the crib in the locked position.

[0066] Figure 34 for Figure 32 A front sectional view of the crib in the unlocked state.

[0067] Component labeling explanation

[0068] crib 1, 1", 1", frame 10, upper frame 100, first lateral part 110, 110', 110", tube 112, 112', 112", positioning column 112a, positioning groove 112b, first longitudinal part 120, first tube 122, actuating part 122a, positioning part 122b, reset elastic part 122c, second tube 124, first pivot part 130, upper sleeve part 132, lower sleeve part 134, lower frame 200, 200", second lateral part 210, second longitudinal part 220, third tube 222, fourth tube 224, second pivot part 230, upright part 232, third pivot part 240, 240", auxiliary upright part 242, pivot limiting part 244, third tube shell 246, 246", engaging feature 246a, fourth tube shell 248, 248", engaging feature 248a, pivot groove 248b, bottom tube 250, 250", side rod 300, locking mechanism 20, locking shell 21, limiting part 22, connecting part 23, linkage elastic part 24, unlocking mechanism 30, 30', 30", unlocking shell 31, 31', 31", limiting part 31a, support part 31b, 31b", operating part 32, driving part 33, positioning part 34, protection part 35, 35", stop part 35a, 35a", protection elastic part 36, bearing part 40, lower frame locking mechanism 50, 50", 50", locking part 51, clamping part 51', engaging part 51a, extension part 51b, lower frame operating part 52, 52", 52", engaging part 52a, abutting part 52b, clamping part 52c, lower frame elastic part 53, synchronous locking part 54, pivot limiting part 55, pivot part 55', protruding part 55a, lower frame synchronous mechanism 60, synchronous part 61, linkage part 62, 62", protruding column 62a, accommodating hole A, pivot cavity C, lateral direction D, pivot groove G, operating hole H, opening O, pivot limiting groove R, sliding groove S, synchronous limiting groove T. DETAILED DESCRIPTION

[0069] Embodiments of the present application will now be described, by way of example, with reference to the accompanying drawings, in which like reference numerals refer to like elements throughout.

[0070] Reference is made to Figure 35 , Figure 32 is a perspective view of a first embodiment of a crib of the present application. The crib 1 of the present embodiment is adapted to accommodate an infant. When a user wants to use the crib 1, the crib 1 can be unfolded to an unfolded state as shown in Figure 36 . When the user has finished using the crib 1, the crib 1 can be folded and collapsed to a folded state as shown in Figure 32The folded state shown saves space in the user's room when the crib 1 is not in use. In addition, to prevent the crib 1 from accidentally folding and injuring the infant due to external disturbance or accidental collision by the user during use, in this embodiment, the crib 1 also has a locking function to lock in the unfolded state and an unlocking function to release the locked state.

[0071] In detail, the crib 1 includes a frame 10, a locking mechanism 20, and an unlocking mechanism 30. The frame 10 includes an upper frame 100, a lower frame 200, and side bars 300. The upper frame 100 can be considered as the armrest of the crib frame and includes a first transverse portion 110, at least one first longitudinal portion 120, and at least one first pivot portion 130. In this embodiment, there are two first longitudinal portions 120 arranged opposite to each other, and these first longitudinal portions 120 are respectively pivotally connected to both ends of the first transverse portion 110 through the first pivot portion 130. The lower frame 200 can be considered as the base of the crib frame and includes a second transverse portion 210, at least one second longitudinal portion 220, and at least one second pivot portion 230. In this embodiment, there are also two second longitudinal portions 220, which are pivotally connected to both ends of the second transverse portion 210 via second pivot portions 230 on both sides. Furthermore, each second pivot portion 230 has an upright portion 232, which can serve as a support leg for the crib 1 and maintain an appropriate distance between the lower frame 200 and the ground. Side rods 300 are connected to the first pivot portion 130 and the second pivot portion 230, causing the upper frame 100 and the lower frame 200 to face each other. A locking mechanism 20 is disposed on the first longitudinal portion 120, while an unlocking mechanism 30 is disposed on the first transverse portion 110.

[0072] like Figure 33 As shown, the upper frame 100 and the lower frame 200 each form a rectangle, and the length of the first horizontal portion 110 is less than the length of the first vertical portion 120, and the length of the second horizontal portion 210 is less than the length of the second vertical portion 220. In other words, the unlocking mechanism 30 of the crib 1 is located on the short side of the crib frame armrest, and is folded into the long side of the crib frame, thereby shortening the length occupied by the crib 1 in the room after folding.

[0073] On the other hand, the first longitudinal portion 120 includes a first tube 122 and a second tube 124, and a locking mechanism 20 is connected between the first tube 122 and the second tube 124. Specifically, the locking mechanism 20 of this embodiment can switch between a locked state and an unlocked state. When the locking mechanism 20 is in the locked state, the first tube 122 and the second tube 124 are fixed relative to the locking mechanism 20; while when the locking mechanism 20 is in the unlocked state, the first tube 122 and the second tube 124 can rotate relative to the locking mechanism 20. The operating mechanism of this part will be described in more detail later.

[0074] Corresponding to the first longitudinal portion 120, the second longitudinal portion 220 comprises a third tube 222 and a fourth tube 224, and the third tube 222 and the fourth tube 224 are pivotally connected to each other. Preferably, the lower frame 200 further comprises at least one third pivot portion 240 and a bottom tube 250, wherein the third pivot portion 240 is connected between the third tube 222 and the fourth tube 224, and the bottom tube 250 is arranged in parallel with the second transverse portion 210, and one end of the bottom tube 250 is connected to the third pivot portion 240. In the present embodiment, the lengths of the first tube 122 and the second tube 124 are substantially equal, and the lengths of the third tube 222 and the fourth tube 224 are also substantially equal. In other words, the baby crib 1 is folded from the unfolded state shown in Figure 35 to the folded state shown in Figure 36 , which is a half-fold design. Such design not only makes the two sides symmetrical and more beautiful, but also makes the position of the center of gravity of the baby crib 1 more stable during folding, which is beneficial to the user to operate and fold the baby crib 1 with one hand.

[0075] Preferably, the baby crib 1 further comprises at least one bearing member 40, wherein the bearing member 40 is, for example, a flexible cloth, arranged between the second transverse portion 210, the second longitudinal portion 220 and the bottom tube 250 to bear the baby for lying. When the baby crib 1 needs to be folded, the frame 10 can be directly folded without disassembling the bearing member 40, which is quite simple and convenient. Of course, in addition to bearing the baby with a flexible cloth, the bearing member 40 can also be selected from a plate-shaped material with higher rigidity to improve the support strength of the bottom of the baby crib 1, and a soft thick pad is laid on top to make the baby lie more comfortably, which is not limited by the present application.

[0076] Please refer to ​ , ​ for a partial enlarged schematic view of the upper frame in ​ . As shown in the figure, the first pivot portion 130 comprises an upper sleeve portion 132 and a lower sleeve portion 134, wherein the upper sleeve portion 132 is sleeved on the first tube 122 of the first transverse portion 110 and the two first longitudinal portions 120, and the lower sleeve portion 134 is sleeved on the first transverse portion 110, the upper sleeve portion 132 and the side rod 300, in other words, the first pivot portion 130 limits the first longitudinal portion 120 to be able to rotate only through the axis of the first transverse portion 110. Preferably, the first transverse portion 110 comprises a tube body 112, and a positioning column 112a is formed on the tube body 112, and a pivot slot G is formed on the lower sleeve portion 134, and the positioning column 112a is slidably arranged in the pivot slot G. When the baby crib 1 is in the unfolded state as shown in ​ , the positioning column 112a is located at the lower end of the pivot slot G (close to the end of the side rod 300), and when the baby crib 1 is in the folded state as shown in ​When folded to the collapsed state, the positioning post 112a rotates together with the first transverse portion 110 to the upper end of the pivot groove G (the end away from the side rod 300). This design not only restricts the rotation direction of the first longitudinal portion 120, but also establishes the rotational stroke of the first tube 122 through the positioning post 112a and the pivot groove G, preventing the crib 1 from being over-expanded or over-folded.

[0077] The locking and unlocking mechanisms of the crib 1 in this embodiment will be described in detail below. Please refer to [link / reference]. ​ ,in ​ They are respectively ​ The unlocking mechanism and ​ Cross-sectional diagrams of the unlocking mechanism in the locked and unlocked states. ​ for ​ The diagram shows the upper frame of the screen when it is unlocked and folded. ​ for ​ A magnified view of the lower frame in the image, while ​ and ​ These are 3D diagrams showing the crib during the folding and collapsing process, and when it is fully folded. ​ and ​ As shown, the locking mechanism 20 includes a locking housing 21, a limiting member 22, and a connecting member 23. The limiting member 22 is tubular and fixed relative to the locking housing 21, while the connecting member 23 is slidably disposed in the hollow portion of the limiting member 22. In addition, the unlocking mechanism 30 includes an unlocking housing 31, an operating member 32, at least one driving member 33, and at least one positioning member 34. The unlocking housing 31 has at least one limiting portion 31a and a receiving hole A. The operating member 32 passes through the receiving hole A and has at least one sliding groove S. The positioning member 34 is, for example, a positioning pin and is slidably disposed in the limiting portion 31a and the sliding groove S. The driving member 33 is, for example, a steel cable, a portion of which is embedded in the first transverse portion 110 and connected to the positioning member 34.

[0078] On the other hand, the first pipe 122 comprises an actuating member 122a, a positioning portion 122b and a reset elastic member 122c, wherein the actuating member 122a is arranged on one end of the first pipe 122 connected to the locking mechanism 20, and the driving member 33 is connected to the actuating member 122a, the positioning portion 122b is for example a sheath of the driving member 33 and is fixed relative to the first pipe 122, and the reset elastic member 122c is for example a linear spring and is connected between the actuating member 122a on one end close to the first pivot portion 130 and the positioning portion 122b. In other words, the driving member 33 is connected to the operating member 32 and the actuating member 122a through the positioning member 34, and the operating member 32 is connected to the locking mechanism 20 through the driving member 33. Preferably, the locking mechanism 20 further comprises a linkage elastic member 24, wherein the linkage elastic member 24 is for example a spring and is arranged between the other end of the actuating member 122a (close to the end of the locking mechanism 20) and the connecting member 23.

[0079] When the locking mechanism 20 is in the locked state as shown in ​ , and the unlocking mechanism 30 has not yet performed the unlocking operation as shown in ​ , the right end of the actuating member 122a is resisted by the reset elastic member 122c to penetrate into the limiting member 22 and abut against the linkage elastic member 24, so that the linkage elastic member 24 is deformed and pushes a part of the connecting member 23 into the inside of the second pipe 124. In other words, when the locking mechanism 20 is in the locked state, the first pipe 122 is clamped in the limiting member 22 through the actuating member 122a, and the connecting member 23 is clamped in the second pipe, so that the first pipe 122 and the second pipe 124 are fixed relative to the locking mechanism 20 and cannot freely rotate, ensuring that the baby crib 1 is maintained in the unfolded state.

[0080] When the user wants to unlock the baby crib 1 to fold and collapse, the operating member 32 can be pressed towards the accommodating hole A, at this time the positioning member 34 is limited by the limiting portion 31a and the sliding groove S and slides towards the center of the operating member 32. In this embodiment, the extension direction of the sliding groove S is inclined relative to the extension direction of the first transverse portion 110, so when the positioning member 34 slides towards the center of the operating member 32, the driving member 33 will be pulled and drive the actuating member 122a to slide towards the positioning portion 122b and disengage from the limiting member 22. At the same time, since the linkage elastic member 24 is no longer resisted by the actuating member 122a, the connecting member 23 is retracted into the inside of the locking housing 21 and no longer clamps in the second pipe 124, forming an unlocked state as shown in ​ and ​ . In other words, the connecting member 23 is selectively clamped in the second pipe 124 by the resistance of the linkage elastic member 24. Then, the user can rotate the first pipe 122 and the second pipe 124 in the counterclockwise direction and the clockwise direction respectively in ​ , to start folding and collapsing the baby crib 1.

[0081] On the other hand, as shown in ​ , the third pivot part 240 includes an auxiliary upright part 242 and a pivot limiting part 244, wherein the auxiliary upright part 242 can support the frame 10 at the central part of the crib 1 in cooperation with the upright part 232, and the pivot limiting part 244 is a protrusion for example and is arranged at one end of the third tube 222 or the fourth tube 224 to limit the third tube 222 and the fourth tube 224 unidirectionally. In other words, when the third tube 222 and the fourth tube 224 are unfolded to be parallel to the ground, the pivot limiting part 244 will be clamped with the third tube 222 or the fourth tube 224 to prevent them from continuing to rotate downward; on the contrary, when the user starts to fold the crib 1, only needs to kick the third pivot part 240 upward with the foot for a distance, the third tube 222 and the fourth tube 224 will no longer be clamped in the pivot limiting part 244 and rotate relative to the bottom tube 250 as the pivot axis, forming a state as shown in ​ . Finally, the user brings the two side rods 300 closer to the middle, and the crib 1 can be completely folded, forming a state as shown in ​ .

[0082] It is worth mentioning that when the crib 1 is unfolded from the folded state to the unfolded state, the actuating part 122a will be automatically inserted into the limiting part 22 again under the elastic force of the reset elastic part 122c, and will push the connecting elastic part 24 in turn to push the connecting part 23 into the second tube 124 and be locked, which is quite simple and convenient.

[0083] In addition, although the first tube 122 is clamped in the limiting part 22 by the actuating part 122a and the connecting part 23 is clamped in the second tube 124 in the embodiment, the present application is not limited thereto. In other possible embodiments, the actuating part 122a can be arranged at one end of the second tube 124 and clamped in the first tube 122 by the connecting part 23 to form a locked state, which can also achieve the same effect.

[0084] Furthermore, although the first tube 122, the second tube 124, the third tube 222 and the fourth tube 224 are used as components of the first longitudinal part 120 and the second longitudinal part 220 in the embodiment, and a part of the locking components and the unlocking components are arranged in the hollow part of the tubes, the present application is not limited thereto. In other possible embodiments, the tubes can be replaced by solid rods, and at the same time, grooves or accommodation grooves are reserved on the rods for the sliding or telescoping of the above-mentioned components, which can also achieve the same effect.

[0085] Please refer to ​ , ​ , the upper frame of the second embodiment of the crib of the present application. The crib 1 of the present embodiment is similar to​ The crib shown is similar to crib 1, with the main difference being: ​ The unlocking mechanism 30' also includes a protective element 35, which passes through the unlocking housing 31'.

[0086] In detail, to prevent accidental folding of the crib 1 due to user accidental activation of the operating component 32, resulting in injury to the infant, the unlocking mechanism 30' in this embodiment incorporates a protective mechanism to prevent accidental activation of the operating component 32. Please also refer to... ​ and ​ ,in ​ for ​ The exploded view of the components, and ​ for ​ A schematic diagram of the configuration of the middle components. In this embodiment, an operating hole H is formed on the tube body 112' of the first transverse portion 110'. Furthermore, the unlocking mechanism 30' also includes a protective elastic member 36, while the unlocking housing 31', in addition to... ​ and ​ In addition to its structure, it also has a support portion 31b and an opening O, wherein the support portion 31b is recessed into the interior of the unlocking housing 31', the protective member 35 passes through the operation hole H and is partially exposed through the opening O for the user to operate, and the protective elastic member 36 is, for example, a linear spring, and is disposed between the protective member 35 and the support portion 31b.

[0087] like ​ As shown, the protective member 35 includes a stop portion 35a, the shape of which corresponds to the upper edge of the operating member 32. When the locking mechanism 20 is in the locked state, since the upper edge of the operating member 32 abuts against the stop portion 35a, the user cannot directly press the operating member 32 into the receiving hole A, thus preventing the crib 1 from being folded. This ensures that the crib 1 will not be accidentally folded due to the user accidentally touching the operating member 32.

[0088] Please refer to ​ and ​ ,in ​ for ​ A cross-sectional view of the unlocking mechanism in the locked state, and ​ for ​ A cross-sectional view of the unlocking mechanism in the unlocked state. If the user wishes to fold up the crib 1, they only need to use one hand to turn the operating piece 35 towards... ​ By moving the lever to the left, the stop 35a slides to the left and is no longer in contact with the upper edge of the operating member 32. At this point, other fingers can be used to press the operating member 32 into the receiving hole A, and the above-mentioned unlocking and folding process can be performed. When the user removes their hand from the unlocking mechanism 30', the protective member 35 will be pulled back towards the left by the elastic force of the protective elastic member 36. ​moves to the right and abuts against the upper edge of the operating member 32 again. In other words, through the arrangement of the protection elastic member 36, the operating member 32 is selectively in abutment with the stopper 35a, thereby avoiding the user from accidentally touching the operating member 32 and folding the crib 1 unintentionally.

[0089] Please refer to ​ and ​ wherein ​ is a partial enlarged schematic view of the upper frame of the third embodiment of the crib of the present application, and ​ is ​ a sectional view thereof. The crib 1 of the present embodiment is similar to the crib 1 shown in ​ , the main difference between the two is that the operating member 32 and the protection member 35” of the present embodiment are arranged on opposite sides of the unlocking housing 31” respectively.

[0090] In detail, the inner side of the tube wall of the tube body 112” is formed with positioning grooves 112b, in the present embodiment, the number of the positioning grooves 112b is two for example and arranged spaced apart along the extension direction of the first transverse portion 110”. On the other hand, the support portion 31b” is a rod for example and the two ends thereof are embedded in the positioning grooves 112b, in other words, the support portion 31b” extends along the extension direction of the first transverse portion 110” and is fixed relative to the tube body 112”, and the protection elastic member 36 is sleeved on the support portion 31b”, and the protection member 35” is fixed relative to the protection elastic member 36. In this way, the protection member 35” can be guided and positioned by the support portion 31b”, and the operating member 32 and the protection member 35” can be arranged on opposite sides of the unlocking housing 31” respectively, which is more in line with the ergonomics of hand operation.

[0091] Please refer to ​ , ​ is a partial assembly exploded view of the fourth embodiment of the crib of the present application. The crib 1” of the present embodiment is similar to the crib 1 shown in ​ , the main difference between the two is that: ​ The crib 1” of the present embodiment further comprises a lower frame locking mechanism 50, wherein the number of the lower frame locking mechanism 50 is two and arranged between the third tube 222 and the fourth tube 224 on both sides of the crib 1” respectively.

[0092] In detail, compared with the third pivot portion 240 of the crib 1 which unidirectionally limits the third tube 222 and the fourth tube 224 by the pivot limiting portion 244, the lower frame locking mechanism 50 of the present embodiment has a more precise locking and unlocking function, so as to fix the third tube 222 and the fourth tube 224 in the unfolded state or switch between the unfolded state and the folded state. Please refer to ​ and ​ wherein ​ is ​a partial enlarged view of ​ is ​ a cross-sectional view of the lower frame locking mechanism 50 in the locked state. As shown, the lower frame locking mechanism 50 includes a third pivot portion 240", a locking member 51, a lower frame operating member 52, and a lower frame elastic member 53. The third pivot portion 240" includes a third tube housing 246 and a fourth tube housing 248. The third tube housing 246 is sleeved on one end of the third tube 222 and fixed relative to the third tube 222. The fourth tube housing 248 is sleeved on one end of the fourth tube 224 and fixed relative to the fourth tube 224. The third tube housing 246 and the fourth tube housing 248 jointly define a pivot cavity C. The locking member 51 is slidably arranged in the pivot cavity C. The lower frame operating member 52, such as a support leg for assisting the crib 1" to stand, is connected to the locking member 51. The lower frame elastic member 53, such as a spring, is arranged between the locking member 51 and the bottom tube 250".

[0093] Specifically, the lower frame locking mechanism 50 selectively engages one or both of the third tube housing 246 and the fourth tube housing 248 through the locking member 51 to achieve the locking or unlocking effect. As shown in ​ and ​ , the third tube housing 246 and the fourth tube housing 248 are respectively in the shape of a circular cap at the respective ends, and the inner surfaces defining the pivot cavity C are respectively formed with engagement features 246a and 248a, such as protrusions corresponding in position in the circumferential direction of the pivot cavity C. On the other hand, the locking member 51 includes an engagement portion 51a and an extension portion 51b. The engagement portion 51a is a gear and corresponds in shape to the engagement features 246a and 248a. The extension portion 51b is in the shape of a cylinder and connected to the engagement portion 51a. The lower frame operating member 52 is fixed relative to the extension portion 51b. Thus, when the third tube 222 and the fourth tube 224 are in the unfolded state, the third tube housing 246 fixed relative to the third tube 222 and the fourth tube housing 248 fixed relative to the fourth tube 224 cannot rotate relative to each other because the engagement portion 51a is simultaneously engaged with the engagement features 246a and 248a due to the abutment of the lower frame elastic member 53, thereby locking the third tube 222 and the fourth tube 224 in the unfolded state.

[0094] Please refer to ​ , ​ is ​ a cross-sectional view of the lower frame locking mechanism 50 in the unlocked state. When the user wants to release the locking state of the third tube 222 and the fourth tube 224, only needs to kick the lower frame operating member 52 a small distance towards the transverse direction D in ​ , at which time the locking member 51 will be driven by the lower frame operating member 52 and moved to ​The engagement part 51a moves to the right side of the pivot cavity C and is no longer locked to the engagement feature 246a, thereby allowing the third tube shell 246 and the fourth tube shell 248 to rotate relative to each other, and simultaneously unlocking the third tube 222 and the fourth tube 224. At this point, the user only needs to kick the third pivot part 240” upward a short distance, just like folding the crib 1, to fold the lower frame 200” of the crib 1” from the unfolded state to the folded state. When the user unfolds the third tube 222 and the fourth tube 224 again, Engaging features 246a and 248a rotate relative to each other to align, and engaging part 51a is reset by the elastic force of the lower frame elastic member 53 and simultaneously engages with engaging features 246a and 248a. In other words, the lower frame locking mechanism 50 engages with at least one of engaging features 246a and 248a through engaging part 51a, thereby achieving the effect of locking and unlocking the third tube 222 and the fourth tube 224, which can increase the stability and convenience of using the crib 1”.

[0095] In addition, in order to allow the user to unlock the lower frame locking mechanisms 50 on both sides at the same time, the crib 1" of this embodiment also includes a lower frame synchronization mechanism 60, and the lower frame synchronization mechanism 60 is connected between these lower frame locking mechanisms 50.

[0096] Please also refer to ​ ,in ​ for ​ A top view of the lower frame synchronization mechanism in the locked state, while ​ for ​ The diagram shows the lower frame synchronization mechanism in the unlocked state from above. Specifically, the lower frame synchronization mechanism 60 includes a synchronizing element 61 and multiple connecting elements 62. The synchronizing element 61 is disc-shaped or spherical, and the connecting elements 62 are rod-shaped and their number corresponds to the lower frame locking mechanism 50. The synchronizing element 61 is pivotally connected to one end of these connecting elements 62, and the other ends of these connecting elements 62 are respectively fixed to the locking elements 51 of the lower frame locking mechanism 50 on both sides.

[0097] Specifically, in this embodiment, the synchronizing element 61 is disposed within the bottom tube 250” and is pivotally fixed to the center of the bottom tube 250” by fasteners such as screws or rivets passing through a locking hole in the center of the synchronizing element 61; on the other hand, at least a portion of these interlocking elements 61 are disposed within the bottom tube 250”, and the lower frame operating element 52 is sleeved on the bottom tube 250”. Furthermore, as... ​As shown, the lower frame synchronization mechanism 60 further comprises a plurality of synchronization fasteners 54, wherein the synchronization fasteners 54 are rivets for example, and a plurality of synchronization limiting slots T are formed on the bottom pipe 250", the number of the synchronization limiting slots T corresponds to the number of the locking members 51 and the length of the synchronization limiting slots T corresponds to the moving length of the lower frame operating members 52 in the transverse direction D, and the synchronization fasteners 54 are threaded through the slot holes on the extension portions 51b of the corresponding locking members 51, the lower frame operating members 52, the connecting members 62 and the synchronization limiting slots T. In other words, the locking members 51 and the connecting members 62 are relatively fixed in the transverse direction D but can relatively rotate in the circumferential direction of the extension portions 51b, and the locking members 51, the lower frame operating members 52 and the connecting members 62 can slide in the transverse direction D for the length of the synchronization limiting slots T.

[0098] When the user unlocks one side of the lower frame locking mechanism 50 as described above, the lower frame operating member 52 will drive the connecting member 62 to move together towards the central portion of the bottom pipe 250" in the transverse direction D, and since the synchronization member 61 is pivotally fixed on the central portion of the bottom pipe 250", the synchronization member 61 will also be driven by the connecting member 62 on one side to rotate, so that the connecting member 62 on the other side moves towards the central portion of the bottom pipe 250" in the direction opposite to the transverse direction D, and ​ to the position of ​ , and drives the lower frame operating member 52 and the locking member 51 on the other side to be unlocked at the same time. In other words, through the connecting relationship of the locking member 51, the lower frame operating member 52, the synchronization member 61 and the connecting member 62, the user only needs to unlock one side of the lower frame locking mechanism 50, and all the lower frame synchronization mechanisms 60 can be unlocked at the same time through the lower frame synchronization mechanism 60, which saves the user from moving to each position of the baby crib 1" to unlock, and greatly improves the convenience of operation.

[0099] Please refer to ​ , ​ and ​ , wherein ​ is a front view schematic diagram of the lower frame locking mechanism of ​ in the unfolded state of the baby crib, ​ is a front view schematic diagram of the lower frame locking mechanism of ​A front view diagram of the lower frame locking mechanism in the folded state of the crib. As shown in the figure, the lower frame locking mechanism 50 of this embodiment preferably further includes a pivoting limiter 55, wherein the pivoting limiter 55 may be a bolt with a cover, and a protrusion 55a is formed on the inner side of the cover; on the other hand, one of the third tube housing 246 and the fourth tube housing 248 forms a pivoting limiter groove R. When the components are assembled together, the bolt portion of the pivoting limiter 55 passes through the third tube housing 246, the fourth tube housing 248 and the locking member 51, the cover portion closes one end of the pivot cavity C, and the protrusion 55a is embedded in the pivoting limiter groove R. With this configuration, when the third tube 222 and the fourth tube 224 are... ​ as well as ​ When switching between the unfolded and folded states, the pivoting limiter 55 not only makes the surface of the third pivot 240” more flat and aesthetically pleasing, but also allows it to rotate synchronously with the locking member 51. In addition, by having the protrusion 55a embedded in the pivoting limiter groove R, the rotational stroke of the locking member 51 and the pivoting limiter 55 is limited to both ends of the pivoting limiter groove R, ensuring that the lower frame operating member 52 rotates to the appropriate position between the unfolded and folded states of the crib 1” without obstructing the folding of the third tube 222 and the fourth tube 224.

[0100] Please refer to ​ ,in ​ This is a partially enlarged schematic diagram of the fifth embodiment of the baby crib of the present invention. ​ for ​ Component breakdown diagram, ​ for ​ A three-dimensional schematic diagram of the lower frame operation component, and ​ for ​ A three-dimensional schematic diagram of the fourth tubular housing and the linkage from another angle. The crib 1” in this embodiment and... ​ Similar to the crib 1” shown, the main difference is that the crib 1” in this embodiment directly achieves the locking and unlocking functions through the lower frame operation component 52”'.

[0101] In detail, the lower frame locking mechanism 50"'of the present embodiment comprises a third pivot portion 240"'and a lower frame operating member 52" ', the third pivot portion 240"'comprises a third tube housing 246"'and a fourth tube housing 248" ', the third tube housing 246"'is fixed relative to the third tube 222, and the fourth tube housing 248"'is fixed relative to the fourth tube 224. The third tube housing 246"'and the fourth tube housing 248"'jointly define a pivot cavity C, and at least one of the third tube housing 246"'and the fourth tube housing 248"'is formed with an engaging feature in the pivot cavity C. In the present embodiment, the fourth tube housing 248"'is formed with an engaging feature 248a, and the engaging feature 248a is a long slot for example. On the other hand, the lower frame operating member 52"'is pivotably connected to the third pivot portion 240"'and a portion thereof is exposed relative to the third pivot portion 240" ', wherein the lower frame operating member 52"'comprises an engaging portion 52a, and in the present embodiment, the engaging portion 52a is a lug for example, which is sized to correspond to the engaging feature 248a, and the engaging portion 52a is selectively engaged with the engaging feature 248a.

[0102] Further, the fourth tube housing 248"'is further formed with a pivot slot 248b in the pivot cavity C, wherein the engaging feature 248a, i.e. the long slot, extends along a radial direction of the fourth tube housing 248" ', and the pivot slot 248b is disposed along a circumferential direction of the fourth tube housing 248"'and is in communication with the long slot 248a, and the engaging portion 52a is slidably disposed in the long slot 248a and the pivot slot 248b. In addition, the lower frame locking mechanism 50"'further comprises a lower frame resilient member 53, and the lower frame resilient member 53 is disposed between the lower frame operating member 52"'and the third pivot portion 240"'along an extension direction of the engaging feature 248a. Please refer to ​ and ​ wherein ​ is ​ a right side sectional view of the third pivot portion and the lower frame operating member of the bassinet in the unfolded state, and ​ is ​The figure shows a right-side cross-sectional view of the third pivot and lower frame operating member of the crib in the unlocked state. As shown, when the crib 1” is in the unfolded state, the lower frame operating member 52”' is abutted by the lower frame elastic member 53, causing the engaging part 52a to be engaged in the engaging feature 248a. Therefore, the third tube shell 246”' and the fourth tube shell 248”' cannot pivot relative to each other, thus locking the lower frame 200” in the unfolded state. When the user wants to fold the crib 1”, they only need to kick the lower frame operating member 52”' upward a certain distance along the extension direction of the engaging feature 248a. At this time, the engaging part 52a will move from the engaging feature 248a into the pivot groove 248b and can slide along the pivot groove 248b circumferentially relative to the fourth tube shell 248”'. In this way, the third tube shell 246”' and the fourth tube shell 248”' are unlocked and can pivot freely relative to each other.

[0103] In addition, the crib 1” in this embodiment also has the function of simultaneously unlocking multiple lower frame locking mechanisms 50”'. For example... ​ As shown, the crib 1” also includes multiple lower frame synchronization mechanisms 60”'. In this embodiment, the number of the second longitudinal portion 220 and the lower frame synchronization mechanisms 60”' is, for example, two. Each lower frame synchronization mechanism 60”' corresponds to a lower frame locking mechanism 50”' and includes a linkage 62”'. The linkage 62”' is pivotally disposed in the pivot cavity C and engages with the lower frame operating member 52”'. In detail, the lower frame operating member 52”' has a locking portion 52c, which is, for example, a hole, and the linkage 62”' has a protrusion 62a, which engages with the locking portion 52c. On the other hand, the lower frame 200” also includes a bottom tube 250”', which is connected to the third pivot 240”' of these lower frame locking mechanisms 50”' and fixed relative to the linkage 62”' of these lower frame synchronization mechanisms 60”'. Thereby, when the user kicks the lower frame operating member 52”' upward a certain distance along the extension direction of the engaging feature 248a as described above, the linkage 62”' will be driven by the lower frame operating member 52”' and pivot relative to the fourth tube housing 248”', further driving the bottom tube 250”' connected to the other third pivot 240”' to pivot synchronously and make the other third pivot 240”' have the same movement mode, achieving the effect of synchronous unlocking.

[0104] Please refer to ​ ,in ​ This is a perspective view of the sixth embodiment of the baby crib of the present invention. ​ for ​ A cross-sectional view of a baby crib. ​ for ​ An exploded view of the components of a baby crib. ​ for ​a front cross-sectional view of the crib in a locked state, and ​ a front cross-sectional view of the crib in a released state. The crib 1''' of the present embodiment is similar to the crib 1'' of the fifth embodiment, and the main difference between the two is that the lower frame locking mechanism 50''' of the present embodiment comprises a third pivot portion 240''' and a lower frame operating portion, wherein the lower frame operating portion comprises a plurality of lower frame operating members 52''' and the user can operate any of the lower frame operating members 52''' to release the crib 1'''. ​ In detail, the lower frame operating portion comprises a latch member 51''', a pivot member 55''' and a plurality of lower frame operating members 52''', wherein the latch member 51''' is slidably disposed within the pivot cavity C and selectively latched with the latching feature 248a, the pivot member 55''' is pivotably connected to the latch member 51''', and the lower frame operating members 52''' are connected to the pivot member 55''' and at least a portion of them are exposed relative to the third pivot portion 240'''.

[0105] As shown in FIG. 12, the pivot member 55''' of the present embodiment is, for example, a tubular member disposed inside the bottom tube 250''', and the end portion of the pivot member 55''' is disposed within the pivot cavity C and latched with the latch member 51'''. On the other hand, the lower frame operating portion further comprises a plurality of link members 62''', which are sleeved on the bottom tube 250''' and fixed relative to the pivot member 55''', wherein the number of the lower frame operating members 52''' corresponds to the number of the link members 62''', and the lower frame operating members 52''' are respectively disposed on the corresponding link members 62'''. In this way, when the user pulls any of the lower frame operating members 62''', the lower frame operating member 52''' will drive the pivot member 55''' to pivot through the link member 62''', so that the latch member 51''' latched with the pivot member 55''' will slide along the extension direction of the latching feature 248a and no longer be latched with the latching feature 248a, thus the crib 1''' can be switched from the locked state to the released state.

[0106] ​ When the user no longer pulls the lower frame operating member 52''', the latch member 51''' will drive the pivot member 55''' to return to the position of the locked state due to the elastic force of the lower frame elastic member 53. ​ ​ It is worth mentioning that although the link members 62''' are sleeved on the outside of the bottom tube 240''' in the present embodiment, the present application is not limited thereto, and in other possible embodiments, the link members 62''' can also be completely covered inside the bottom tube 240''', and only the bottom tube 240''' is exposed by the lower frame operating members 52''' for the user to operate.

[0107] It is worth mentioning that although the link members 62''' are sleeved on the outside of the bottom tube 240''' in the present embodiment, the present application is not limited thereto, and in other possible embodiments, the link members 62''' can also be completely covered inside the bottom tube 240''', and only the bottom tube 240''' is exposed by the lower frame operating members 52''' for the user to operate.

[0108] ​​Compared with the prior art, the baby crib 1 of the present application comprises a locking mechanism 20 and an unlocking mechanism 30, which can lock the frame body 10 in the unfolded state or release the locking state. In addition, through the pivoting relationship between each component of the frame body 10, the user only needs to unlock and fold once by using one hand, without disassembling each component one by one, which can greatly save the time required for folding the baby crib 1 and improve the convenience of use.

[0109] The present application has been described in conjunction with the preferred embodiments, but the present application is not limited to the embodiments disclosed above, but should cover various modifications, equivalent combinations according to the essence of the present application.

Claims

1. A crib, characterized in that, The application relates to a frame, comprising: a frame body, comprising: an upper frame, comprising a first lateral part, a first longitudinal part and a first pivot part, the first longitudinal part being pivoted to the first lateral part through the first pivot part and comprising a first pipe and a second pipe; a lower frame, comprising a second lateral part, a second longitudinal part and a second pivot part, the second longitudinal part being pivoted to the second lateral part through the second pivot part and comprising a third pipe and a fourth pipe, and the third pipe and the fourth pipe being pivoted to each other; and a side rod connected to the first pivot part and the second pivot part; a locking mechanism connected between the first pipe and the second pipe, when the locking mechanism is in a locked state, the first pipe and the second pipe are fixed relative to the locking mechanism, when the locking mechanism is in an unlocked state, the first pipe and the second pipe can rotate relative to the locking mechanism; and an unlocking mechanism arranged on the first lateral part and comprising an operating part and a driving part, and the operating part is connected to the locking mechanism through the driving part, wherein the locking mechanism comprises a locking shell, a limiting part and a connecting part, the limiting part is fixed relative to the locking shell, the first pipe comprises an actuating part, the driving part is connected to the operating part and the actuating part, the actuating part is slidably arranged on the first pipe and can be clamped between the first pipe and the limiting part, the connecting part is slidably arranged on the limiting part and is clamped between the second pipe and the limiting part by the abutting of the actuating part, wherein the first longitudinal part is provided with two and arranged opposite to each other, the two first longitudinal parts are respectively pivoted to the two ends of the first lateral part through the first pivot part, and each of the first longitudinal parts is provided with the locking mechanism; the operating part is connected to the two locking mechanisms through the driving part, so that the two locking mechanisms are simultaneously released.

2. The crib of claim 1, wherein, The first pipe further comprises a positioning part and a reset elastic part, the reset elastic part is connected between one end of the actuating part and the positioning part.

3. The crib of claim 2, wherein, The locking mechanism further comprises a linkage elastic part, and the linkage elastic part is arranged between the other end of the actuating part and the connecting part.

4. The crib of claim 1, wherein, The first lateral part comprises a pipe body, the pipe body is formed with an operating hole, the unlocking mechanism further comprises an unlocking shell and a protection part, the unlocking shell is formed with an opening and a containing hole, the unlocking shell is sleeved on the pipe body, the protection part is arranged in the operating hole and a part thereof is exposed through the opening, the protection part comprises a stop part, the operating part is arranged in the containing hole and selectively abuts against the stop part.

5. The crib of claim 1, wherein, The unlocking mechanism further comprises an unlocking shell and at least one positioning part, the unlocking shell is formed with at least one limiting part, the operating part is formed with at least one sliding groove, the positioning part is slidably arranged in the limiting part and the sliding groove, and the driving part is connected to the positioning part.

6. The crib of claim 5, wherein, Part of the driving part is embedded in the first lateral part, and the extension direction of the sliding groove is inclined relative to the extension direction of the first lateral part.

7. The crib of claim 1, wherein, The lower frame further comprises a third pivot joint and a bottom tube, the third pivot joint is connected between the third tube and the fourth tube and comprises a pivot limiting portion, the bottom tube is arranged in parallel with the second transverse portion, and one end of the bottom tube is connected to the third pivot joint.

8. The crib of claim 1, wherein, Further comprising: A lower frame locking mechanism, comprising: A third pivot joint, comprising a third tube shell and a fourth tube shell, the third tube shell is fixed relative to the third tube, the fourth tube shell is fixed relative to the fourth tube, the third tube shell and the fourth tube shell jointly define a pivot cavity, and at least one of the third tube shell and the fourth tube shell forms a clamping feature in the pivot cavity; and A lower frame operating member, pivotably connected to the third pivot joint and partially exposed relative to the third pivot joint, the lower frame operating member comprises a clamping portion, and the clamping portion selectively clamps with each other with the clamping feature.

9. The crib of claim 8, wherein, The clamping feature is a long slot extending along at least one of the third tube shell and the fourth tube shell, at least one of the third tube shell and the fourth tube shell further forms a pivot slot in the pivot cavity, the pivot slot is arranged along the circumference of at least one of the third tube shell and the fourth tube shell and is communicated with the long slot, and the clamping portion is slidably arranged in the long slot and the pivot slot.

10. The crib of claim 8, wherein, The lower frame locking mechanism further comprises a lower frame elastic member, and the lower frame elastic member is arranged between the lower frame operating member and the third pivot joint along the extension direction of the clamping feature.

11. The crib of claim 8, wherein, The second longitudinal portion and the lower frame locking mechanism are a plurality of, and the crib further comprises: A plurality of lower frame synchronization mechanisms, each of the lower frame synchronization mechanisms corresponds to each of the lower frame locking mechanisms and comprises a linkage member, the linkage member is pivotably arranged in the pivot cavity and clamped to the lower frame operating member; Wherein, the lower frame further comprises a bottom tube, the bottom tube is connected to the third pivot joint of the plurality of lower frame locking mechanisms and is fixed relative to the linkage member of the plurality of lower frame synchronization mechanisms.

12. The crib of claim 1, wherein, Further comprising: A lower frame locking mechanism, comprising: A third pivot joint, comprising a third tube shell and a fourth tube shell, the third tube shell is fixed relative to the third tube, the fourth tube shell is fixed relative to the fourth tube, the third tube shell and the fourth tube shell jointly define a pivot cavity, and at least one of the third tube shell and the fourth tube shell forms a clamping feature in the pivot cavity; and A lower frame operating portion, comprising a clamping member, a pivot member and a plurality of lower frame operating members, the clamping member is slidably arranged in the pivot cavity and selectively clamped with each other with the clamping feature, the pivot member is pivotably connected to the clamping member, and the plurality of lower frame operating members are connected to the pivot member and at least partially exposed relative to the third pivot joint.

13. The crib of claim 12, wherein, The third pivot joint is a plurality, the lower frame further comprises a bottom tube, the bottom tube is connected between the plurality of third pivot joints, the pivot member is arranged in the bottom tube, and the end portion of the pivot member is arranged in the pivot cavity.

14. The crib of claim 13, wherein, The lower frame operating part further comprises a plurality of linkage members sleeved on the bottom pipe and fixed relative to the pivot members, and the plurality of lower frame operating members are arranged on the plurality of linkage members.

15. The crib of claim 12, wherein, The lower frame operating part further comprises a lower frame elastic member arranged between the clamping member and the third pivot part.

16. The crib of claim 1, wherein, The first pipe member and the second pipe member have equal lengths, and the third pipe member and the fourth pipe member have equal lengths.

17. The crib of claim 1, wherein, The length of the first transverse part is less than the length of the first longitudinal part, and the length of the second transverse part is less than the length of the second longitudinal part.

18. A crib, characterized in that Comprising: a frame body comprising: an upper frame comprising a first transverse part, a first longitudinal part and a first pivot part, the first longitudinal part being pivoted to the first transverse part through the first pivot part and comprising a first pipe member and a second pipe member; a lower frame comprising a second transverse part, a second longitudinal part and a second pivot part, the second longitudinal part being pivoted to the second transverse part through the second pivot part and comprising a third pipe member and a fourth pipe member, and the third pipe member and the fourth pipe member being pivoted to each other; and a side rod connected to the first pivot part and the second pivot part; a locking mechanism connected between the first pipe member and the second pipe member, when the locking mechanism is in a locked state, the first pipe member and the second pipe member are fixed relative to the locking mechanism, when the locking mechanism is in an unlocked state, the first pipe member and the second pipe member can rotate relative to the locking mechanism; and an unlocking mechanism arranged on the first transverse part and comprising an operating member and a driving member, and the operating member is connected to the locking mechanism through the driving member, wherein the unlocking mechanism further comprises an unlocking housing, a protection member and a protection elastic member, the unlocking housing is formed with an opening and a receiving hole and comprises a supporting part, and the unlocking housing is sleeved on the pipe body of the first transverse part, the protection member is inserted through the operating hole on the pipe body and a part thereof is exposed through the opening, the protection member comprises a stop part, the operating member is inserted through the receiving hole and selectively abuts against the stop part, and the protection elastic member is arranged between the protection member and the supporting part, wherein the first longitudinal part is provided with two and arranged opposite to each other, the two first longitudinal parts are respectively pivoted to the two ends of the first transverse part through the first pivot part, and each first longitudinal part is provided with the locking mechanism; the operating member is connected to the two locking mechanisms through the driving member, so that the two locking mechanisms are simultaneously released.

19. The crib of claim 18, wherein, The supporting part extends along the extension direction of the first transverse part and is fixed relative to the pipe body, the protection elastic member is sleeved on the supporting part, and the protection member is fixed relative to the protection elastic member.

20. A crib, characterized in that Comprising: a frame body comprising: an upper frame comprising a first transverse part, a first longitudinal part and a first pivot part, the first longitudinal part being pivoted to the first transverse part through the first pivot part and comprising a first pipe member and a second pipe member; a second longitudinal portion, a second pivot portion, and a second frame portion, the second longitudinal portion being pivotally connected to the second frame portion via the second pivot portion and including a third tube and a fourth tube, the third tube and the fourth tube being pivotally connected to each other; and a side rod connected to the first pivot portion and the second pivot portion; a locking mechanism connected between the first tube and the second tube, the first tube and the second tube being fixed relative to the locking mechanism when the locking mechanism is in a locked state, the first tube and the second tube being rotatable relative to the locking mechanism when the locking mechanism is in an unlocked state; and an unlocking mechanism disposed on the first frame portion and including an operation member and a driving member, the operation member being connected to the locking mechanism via the driving member, wherein the first longitudinal portion is provided in two and disposed opposite to each other, the two first longitudinal portions being pivotally connected to two ends of the first frame portion via the first pivot portion respectively, and each of the first longitudinal portions is provided with the locking mechanism, the operation member being connected to the two locking mechanisms via the driving member to simultaneously release the two locking mechanisms, wherein the crib further includes: a lower frame locking mechanism including: a third pivot portion including a third tube housing and a fourth tube housing, the third tube housing being fixed relative to the third tube, the fourth tube housing being fixed relative to the fourth tube, the third tube housing and the fourth tube housing collectively defining a pivot cavity, and at least one of the third tube housing and the fourth tube housing being formed with an engaging feature in the pivot cavity; a locking member slidingly disposed in the pivot cavity and including an engaging portion and an extending portion, the engaging portion being selectively engaged with the engaging feature, and the extending portion being connected to the engaging portion; and a lower frame operation member being fixed relative to the extending portion.

21. The crib of claim 20, wherein, the second longitudinal portion and the lower frame locking mechanism are provided in a plurality, and the crib further includes: a lower frame synchronization mechanism including a synchronization member and a plurality of linkage members, the synchronization member being pivotally connected to the plurality of linkage members, and the plurality of linkage members being fixedly disposed on the locking members of the plurality of lower frame locking mechanisms respectively.

22. The crib of claim 21, wherein, the lower frame further includes a bottom tube connected to the third pivot portion and disposed parallel to the second frame portion, at least a portion of the plurality of linkage members and the synchronization member being disposed in the bottom tube, and the lower frame operation member being sleeved on the bottom tube.

23. The crib of claim 22, wherein, the bottom tube is formed with a plurality of synchronization limiting grooves, and the lower frame synchronization mechanism further includes a plurality of synchronization locking members penetrating through the locking members, the lower frame operation member, the linkage members, and the synchronization limiting grooves respectively.

24. The crib of claim 20, wherein, the lower frame further includes a bottom tube connected to the third pivot portion and disposed parallel to the second frame portion, the lower frame locking mechanism further includes a lower frame elastic member, and the lower frame elastic member is disposed between the locking member and the bottom tube.

25. The crib of claim 20, wherein, The lower frame locking mechanism further comprises a pivot limiting member, the pivot limiting member is formed with a protrusion, one of the third pipe shell and the fourth pipe shell is formed with a pivot limiting slot, and the protrusion is embedded in the pivot limiting slot.

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