Baby crib connecting joint and baby crib applying same

Abstract

The utility model relates to the field of baby products, in particular to a baby crib connecting joint and a baby crib applying the same, the baby crib connecting joint comprises a connecting base, a mounting groove is formed in one side of the connecting base in the length direction in a penetrating mode, and the two ends of the mounting groove in the extending direction communicate with the end walls of the two ends of the connecting base in the length direction; the two ends, in the length direction, of the connecting base are connected with connecting rods of the baby crib, the ends of the two connecting rods are buckled into the mounting groove, and the two connecting rods are hinged to the inner walls of the two ends, in the extending direction, of the mounting groove respectively; an avoiding notch is formed in the end wall in the length direction of the connecting base, the avoiding notch is formed in the side wall of the side, away from the opening, of the connecting base, so that the connecting rod can be bent in the direction close to the side wall, away from the opening, of the connecting base, and the edge of the side wall of the connecting base is arranged in a round corner mode. The folding baby crib has the advantages that the folding requirement is met, and meanwhile the using safety of the baby crib is improved.

Description

Technical Field

[0001] The present application relates to the field of baby products, and in particular to a baby crib connecting joint and a baby crib using the same. Background Art

[0002] A crib is a bed for infants and young children. Currently, foldable cribs can be unfolded or folded at any time, saving space for storage and transportation, and are becoming increasingly popular among consumers.

[0003] Existing folding cribs usually include a base and a fence that are movably connected. The base includes a center seat and a plurality of support rods arranged around the center seat, and the plurality of support rods can be folded in the same direction of the center seat; the fence includes a plurality of connecting frames that are movably connected in sequence, and the ends of the support rods away from the center seat are movably connected to the connecting frames; when the crib is in use, the plurality of support rods are parallel to the ground, and there is sufficient space for movement between the base and the fence; when the crib is stored, the support rods are controlled to move in a specified direction to fold the base. When the base is folded, the angles between adjacent connecting frames and between the connecting frames and the support rods are adaptively changed to cooperate with the folding of the base to complete the storage of the crib.

[0004] In the prior art, the connecting frame includes a plurality of hinged movable rods to achieve the effect of bending and gathering the longer sides. After being stored, the ends of some movable rods will protrude upward. However, the edges of the end walls of the movable rods made of metal are relatively sharp. Although the fence is usually covered with cloth, there is still the possibility that the hard metal edge will scratch the cloth or the metal edge will scratch the baby's tender skin. Therefore, improvement is needed. Utility Model Content

[0005] In order to meet the folding requirements while improving the safety of the crib during use, the present application provides a crib connecting joint and a crib using the same.

[0006] In the first aspect, the present application provides a crib connection joint adopting the following technical solution:

[0007] A baby crib connection joint comprises a connection seat, a mounting groove is provided on one side of the connection seat in the length direction, and both ends of the mounting groove in the extension direction are connected to the end walls at both ends of the connection seat in the length direction; both ends of the connection seat in the length direction are connected to the connection rods of the baby crib, the ends of the two connection rods are buckled into the mounting groove, and the two connection rods are respectively hinged to the inner walls at both ends of the extension direction of the mounting groove; an avoidance notch is provided on the end wall in the length direction of the connection seat, and the avoidance notch is provided on the side wall of the connection seat away from the opening, so that the connection rod can be bent in the direction close to the side wall of the connection seat away from the opening, and the edges of the side walls of the connection seat are all rounded.

[0008] By adopting the above technical solution, the end of the connecting rod is buckled into the installation groove, and the connecting seat can shield the end of the connecting rod, so that the end of the connecting rod will not protrude outside the outline of the crib during rotation, thereby reducing the possibility of the user being accidentally scratched due to the sharp end of the connecting rod protruding from the crib when folded; the avoidance gap allows the connecting rod to bend in the direction of the side wall close to the connecting seat away from the opening, providing a suitable activity space for the connecting rod, while meeting the folding requirements and improving the safety of the crib when in use; the edges of the side walls of the connecting seat are all rounded, so that the edges of the side walls of the connecting seat have no edges and are relatively smooth, thereby reducing the possibility of the user being scratched by the edges when using the crib, further improving the safety of the crib when in use.

[0009] Optionally, the connecting rod includes a first support rod and a second support rod, the first support rod and the second support rod are arranged side by side, and the ends of the first support rod and the second support rod are both located in the mounting groove; and also includes a connecting member, which is used to connect and fix, so that the first support rod and the second support rod are both hinged to the inner wall of the mounting groove, and the first support rod and the second support rod remain parallel when rotating.

[0010] By adopting the above technical solution, the specific structure of the connecting rod is clarified. The connecting rod uses a structure in which the first support rod and the second support rod are arranged side by side, so that the connecting rod is a double-layer structure, which can improve the bearing capacity of the connecting rod and improve the stability of the connecting rod.

[0011] Optionally, the connecting member includes a limiting bolt and a limiting nut, the limiting bolt being threadedly connected to the limiting nut; a first mounting hole is provided on the side wall in the length direction of the first support rod that is compatible with the limiting bolt, and the first mounting hole is arranged at one end of the first support rod close to the connecting seat; a second mounting hole is provided on the side wall in the length direction of the second support rod that is compatible with the limiting bolt, and the second mounting hole is arranged at one end of the second support rod close to the connecting seat; the connecting seat is provided with a plurality of third mounting holes that are compatible with the limiting bolt, the limiting bolt can be passed through the third mounting hole and the first mounting hole in sequence, and the limiting bolt can be passed through the third mounting hole and the second mounting hole in sequence, and the first mounting hole and the second mounting hole are both loosely matched with the limiting bolt.

[0012] By adopting the above technical solution, when the connecting seat and the first support rod are assembled, the limiting bolt can be inserted into the third mounting hole and the first mounting hole in sequence; when the second support rod is assembled, the limiting bolt can be inserted into the third mounting hole and the second mounting hole in sequence; the first mounting hole and the second mounting hole are both loosely matched with the limiting bolt, so that there is sufficient space for movement between the limiting bolt and the first mounting hole (or the second mounting hole) to facilitate the user to adjust the position of the connecting rod.

[0013] Optionally, the second support rod is arranged on the side of the connecting seat close to the opening, the cross-sectional profile of the first mounting hole is a long strip, and the length direction of the cross-sectional area of ​​the first mounting hole is consistent with the length direction of the first support rod; a transfer hole is penetrated through the first support rod, and a rivet is provided on the connecting seat, and the rivet is sequentially passed through the connecting seat and the transfer hole, and the rivet is slidably connected to the inner wall of the transfer hole; a guide groove for the rivet to slide is provided on the connecting seat, and the length direction of the cross-sectional area of ​​the guide groove is set at an angle to the direction of the axis of the connecting seat; the guide groove extends horizontally to a locking hole at one end away from the opening direction of the connecting seat, and the locking hole is connected to the guide groove; when the first support rod is parallel to the length direction of the connecting seat, the rivet is buckled into the locking hole.

[0014] By adopting the above technical solution, when the first support rod is parallel to the length direction of the connecting seat, the rivet is buckled into the locking hole, and the locking hole can reduce the possibility of the rivet sliding downward along the guide groove, so that the first support rod can remain parallel to the length direction of the connecting seat, thereby improving the stability of the baby bed when in use; when adjusting the position of the connecting rod and the connecting seat, the rivet is controlled to slide into the guide groove and move in the direction close to the opening of the connecting seat until the rivet slides to the end of the guide groove away from the locking groove, so as to complete the switching of the first support rod from the horizontal supporting state to the folded state; the first mounting hole is set in a long strip shape, and when the first support rod switches between the horizontal supporting state and the folded state, part of the side wall of the limit bolt slides along the extension direction of the first mounting hole, providing space for the sliding of the rivet, so as to facilitate the switching of the position of the connecting rod and the connecting seat.

[0015] Optionally, a protective sleeve is provided on the end wall of the second support rod close to the connecting seat, and the protective sleeve is made of a flexible material.

[0016] By adopting the above technical solution, the protective cover made of flexible material can reduce the possibility of hard contact between the end of the second support rod and the user when taking or placing the baby crib, thereby improving the safety of the baby crib when in use.

[0017] Optionally, a gasket is provided between the limiting nut and the side wall of the connecting seat.

[0018] By adopting the above technical solution, friction is easily generated between the limit nut and the connecting seat during the process of folding or unfolding the connecting seat and the connecting rod, causing damage to the connecting seat; since multiple parts are installed on the connecting seat, it is time-consuming and labor-intensive to replace the connecting seat; the gasket can reduce the direct contact between the limit nut and the connecting seat, and reduce the degree of wear of the connecting seat; when the limit nut scratches the gasket seriously, it can be directly replaced with a new gasket, thereby increasing the service life of the connecting seat and the convenience of the user when maintaining the crib.

[0019] Optionally, the side wall on the outer edge side of the end of the limiting bolt is rounded.

[0020] By adopting the above technical solution, the possibility of the user being scratched by the sharp corner of the end of the limiting bolt when using the baby crib is reduced.

[0021] In the second aspect, the present application provides a baby crib adopting the following technical solution:

[0022] A baby crib comprises a base and a fence movably connected to each other, the base and the fence having a folded state and an extended state when in use, and the fence and the base being able to switch back and forth between the folded state and the extended state; the fence comprises a plurality of first mounting rods and a plurality of second mounting rods, the plurality of second mounting rods being connected end to end in sequence; one end of the first mounting rod in the length direction is movably connected to the connection point of the adjacent second mounting rod, and the other end is movably connected to the base; the second mounting rod comprises a plurality of connecting rods, and the connecting rod is connected to the adjacent connecting rods via the above-mentioned baby crib connecting joint.

[0023] By adopting the above technical solution, the base and the fence both have a folded state and an extended state; when the crib is assembled and used, the base and the fence are unfolded, so that a space for the baby to sleep and move is formed between the fence and the base; when the crib is stored, the base is adjusted from the unfolded state to the folded state; the first mounting rod and the second mounting rod are pulled by the adjustment rod to switch from the unfolded state to the bent state, and the plurality of connecting rods are connected by the above-mentioned connecting joints, so that the plurality of connecting rods can also be changed into a folded state as the first mounting rod moves, so that the base and the fence are both in a folded state, reducing the volume of the crib and improving the convenience of the user when storing and carrying the crib.

[0024] In summary, the present application includes at least one of the following beneficial technical effects:

[0025] The end of the connecting rod is buckled into the installation groove, and the connecting seat can shield the end of the connecting rod, thereby reducing the possibility of the user being accidentally scratched due to the sharp end of the connecting rod protruding from the crib when folded; the avoidance gap allows the connecting rod to bend toward the side wall of the connecting seat away from the opening, providing a suitable activity space for the connecting rod to meet the folding requirements of the crib; the edges of the side walls of the connecting seat are all rounded, so that the edges of the side walls of the connecting seat are relatively smooth, thereby reducing the possibility of the user being scratched by the edges when using the crib, thereby improving the safety of the crib when in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a schematic diagram of the structure of the connecting joints of the baby crib in this embodiment;

[0027] Figure 2 is an exploded schematic diagram of the connection joint of the crib in this embodiment;

[0028] Figure 3 It is a structural schematic diagram of the baby crib in this application.

[0029] Figure numerals: 1. connecting seat; 11. mounting groove; 12. avoidance gap; 13. third mounting hole; 14. rivet; 15. guide groove; 16. locking hole; 2. connecting rod; 21. first support rod; 211. first mounting hole; 212. adapter hole; 22. second support rod; 221. second mounting hole; 222. protective cover; 3. connecting piece; 31. limiting bolt; 32. limiting nut; 33. gasket; 4. base; 41. support seat; 42. adjusting rod; 5. fence; 51. first mounting rod; 52. second mounting rod. DETAILED DESCRIPTION

[0030] The following is combined with Figure 1-3 This application is described in further detail.

[0031] The present application embodiment discloses a baby crib connecting joint and a baby crib using the same:

[0032] Reference Figure 1A baby bed connection joint includes a connection seat 1, a mounting groove 11 is formed on one side of the connection seat 1 in the length direction, and both ends of the mounting groove 11 in the extension direction are connected to the end walls of the connection seat 1 in the length direction; both ends of the connection seat 1 in the length direction are connected to the connection rod 2 of the baby bed, and the ends of the two connection rods 2 are buckled into the mounting groove 11, and the two connection rods 2 are respectively hinged to the inner walls of the two ends of the installation groove 11 in the extension direction; when the baby bed is switched back and forth between the unfolded state and the folded state, the position of the end of the connection rod 2 changes; because the end of the connection rod 2 is located in the mounting groove 11, the connection seat 1 can The end of the connecting rod 2 is shielded so that the end of the connecting rod 2 does not protrude outside the outline of the crib during the rotation process, reducing the possibility of the user being accidentally scratched due to the sharp end of the connecting rod 2 protruding from the crib when folded; the end wall of the connecting seat 1 in the length direction is provided with an avoidance notch 12 adapted to the connecting rod 2, and the avoidance notch 12 is arranged on the side wall of the connecting seat 1 away from the opening, so that the connecting rod 2 can be bent toward the direction close to the side wall of the connecting seat 1 away from the opening, providing a suitable activity space for the connecting rod 2, while meeting the folding requirements and improving the safety of the crib when in use.

[0033] The edges of the side walls of the connecting seat 1 are all rounded, so that the edges of the side walls of the connecting seat 1 have no sharp edges and are relatively smooth, thereby reducing the possibility of the user being scratched by the sharp edges when using the baby crib, and further improving the safety of the baby crib when in use.

[0034] The connecting rod 2 includes a first support rod 21, a second support rod 22 and a connecting member 3 capable of connecting the first support rod 21 and the second support rod 22. The first support rod 21 and the second support rod 22 are arranged side by side, and the ends of the first support rod 21 and the second support rod 22 are both located in the mounting groove 11; the connecting member 3 can enable the first support rod 21 and the second support rod 22 to be hinged to the inner wall of the mounting groove 11, and the first support rod 21 and the second support rod 22 remain parallel when rotating; the first support rod 21 and the second support rod 22 are arranged side by side so that the connecting rod 2 has a double-layer structure, which can improve the bearing capacity of the connecting rod 2 and further improve the stability of the connecting rod 2.

[0035] In this embodiment, the connecting member 3 includes a limiting bolt 31 and a limiting nut 32, and the limiting bolt 31 is threadedly connected to the limiting nut 32; a first mounting hole 211 adapted to the limiting bolt 31 is provided through the side wall in the length direction of the first support rod 21, and the first mounting hole 211 is arranged at one end of the first support rod 21 close to the connecting seat 1; a second mounting hole 221 adapted to the limiting bolt 31 is provided through the side wall in the length direction of the second support rod 22, and the second mounting hole 221 is arranged at one end of the second support rod 22 close to the connecting seat 1; the connecting seat 1 is provided with a plurality of second mounting holes 221 adapted to the limiting bolt 31. The third mounting hole 13 matched with the bolt 31, when the connecting seat 1 and the first support rod 21 are assembled, the limiting bolt 31 can be sequentially passed through the third mounting hole 13 and the first mounting hole 211; when the second support rod 22 is assembled, the limiting bolt 31 can sequentially pass through the third mounting hole 13 and the second mounting hole 221; the first mounting hole 211 and the second mounting hole 221 are both clearance-matched with the limiting bolt 31, so that there is enough movable space between the limiting bolt 31 and the first mounting hole 211 (or the second mounting hole 221), so that the user can adjust the state of the connecting rod 2.

[0036] The side wall at the outer edge of the end of the limiting bolt 31 is rounded to reduce the possibility of the user being scratched by the sharp corner of the limiting bolt 31 when using the baby crib.

[0037] A gasket 33 is arranged between the limiting nut 32 and the side wall of the connecting seat 1. In the present embodiment, the limiting bolt 31, the limiting nut 32 and the gasket 33 are all made of stainless steel. When the position of the first support rod 21 or the second support rod 22 is adjusted, friction is easily generated between the limiting nut 32 and the connecting seat 1, so that the connecting seat 1 is easily worn during use. The gasket 33 can reduce the direct contact between the limiting nut 32 and the connecting seat 1, while increasing the contact area with the outer wall of the connecting seat 1, thereby reducing the degree of wear of the connecting seat 1. When the limiting nut 32 scratches the gasket 33 seriously, the new gasket 33 can be directly replaced, thereby improving the service life of the connecting seat 1 and the convenience of the user when maintaining the crib.

[0038] The second support rod 22 is arranged on one side of the connecting seat 1 close to the opening, and a protective cover 222 is provided on the end wall of the second support rod 22 close to the connecting seat 1. The protective cover 222 is made of a flexible material. In the present embodiment, the protective cover 222 is made of rubber or silicone. When the end of the second support rod 22 is rotated to a direction close to the opening of the connecting seat 1, the protective cover 222 made of the flexible material can reduce the possibility of hard contact between the end of the second support rod 22 and the end of the second support rod 22 when the user takes or places the crib, and reduce the possibility of the user being scratched by the end of the second support rod 22, thereby improving the safety of the crib when in use.

[0039] A transfer hole 212 is provided through the first support rod 21, and a rivet 14 is provided on the connecting seat 1. The rivet 14 is sequentially inserted into the connecting seat 1 and the transfer hole 212, and the rivet 14 is slidably connected to the inner wall of the transfer hole 212; a guide groove 15 for the rivet 14 to slide is provided on the connecting seat 1, and the length direction of the cross section of the guide groove 15 is set at an angle to the direction where the axis of the connecting seat 1 is located; the guide groove 15 extends in the horizontal direction at one end away from the opening direction of the connecting seat 1, and a locking hole 16 is provided, and the locking hole 16 is connected to the guide groove 15. In this embodiment, the locking hole 16 extends in a direction close to the midpoint of the length direction of the connecting seat 1; when the first support rod 21 is parallel to the length direction of the connecting seat 1, the rivet 14 is buckled into the locking hole 16; the cross-sectional profile of the first mounting hole 211 is a long strip, and the length direction of the cross section of the first mounting hole 211 is consistent with the length direction of the first support rod 21.

[0040] When the first support rod 21 is parallel to the length direction of the connecting seat 1, the rivet 14 is buckled into the end of the locking hole 16 away from the guide groove 15. The locking hole 16 can reduce the possibility of the rivet 14 moving along the guide groove 15 toward the direction close to the opening of the connecting seat 1, so that the first support rod 21 can remain parallel to the length direction of the connecting seat 1, thereby improving the stability of the baby bed when in use; when the first support rod 21 is switched from a state parallel to the length direction of the connecting seat 1 to forming an obtuse angle with the length direction of the connecting seat 1, the rivet 14 slides into the guide groove 15 and moves in the direction close to the opening of the connecting seat 1 until the rivet 14 slides to the end of the guide groove 15 away from the locking hole 16, thereby completing the switching of the first support rod 21 from the horizontal support state to the folded state.

[0041] The first mounting hole 211 is arranged in a long strip shape. When the first support rod 21 switches between the horizontal support state and the folded state, part of the side wall of the limiting bolt 31 slides along the extension direction of the first mounting hole 211 to provide space for the sliding of the rivet 14; in this embodiment, two guide grooves 15, two locking holes 16 and two rivets 14 are symmetrically arranged on the same connecting seat 1, and the two locking holes 16 are located on the same straight line, so that the two first support rods 21 are locked on the same straight line to realize the unfolding of the handrail; when the fence 5 is folded, the two first support rods 21 can move towards each other along the guide groove 15 at the same time, and the second support rod 22 rotates circumferentially around the limiting bolt 31 under the drive of the first support rod 21 to realize the folding of the connecting rod 2.

[0042] The implementation principle of a baby crib connection joint in the embodiment of the present application is as follows: the connection seat 1 can shield the ends of the first support rod 21 and the second support rod 22, thereby reducing the possibility that the ends of the first support rod 21 and the second support rod 22 protrude outside when rotating, thereby reducing the possibility that the user is scratched by the ends of the connection rod 2 when storing the baby crib;

[0043] When the crib is in the unfolded state, the first support rods 21 arranged at both ends of the length direction of the connecting seat 1 are parallel to the length direction of the connecting seat 1, and the rivet 14 is buckled into the locking hole 16 at one end away from the guide groove 15. The locking hole 16 can reduce the possibility of the rivet 14 moving along the guide groove 15 toward the opening of the connecting seat 1, so that the first support rod 21 can maintain a state parallel to the length direction of the connecting seat 1, thereby improving the stability of the crib when in use; when the crib is switched from the unfolded state to the folded state, the first support rod 21 is buckled into the avoidance opening, and the rivet 14 slides into the guide groove 15 and moves toward the opening of the connecting seat 1; the second support rod 22 is driven by the first support rod 21 to rotate around the limit bolt 31 as the center; the end of the second support rod 22 is covered with a protective cover 222, and when the second support rod 22 rotates to the end facing the opening of the connecting seat 1, the protective cover 222 can protect the user, reduce the possibility of the user's body and the end of the second support rod 22 having a hard contact, and further improve the safety of the crib when in use.

[0044] Based on the same design concept, the present application also discloses a baby crib.

[0045] A baby crib includes a base 4 and a fence 5 which are movably connected to each other. The fence 5 and the base 4 have a folded state and an extended state when in use, and the fence 5 and the base 4 can switch back and forth between the folded state and the extended state; the fence 5 includes a plurality of first mounting rods 51 and a plurality of second mounting rods 52, and the plurality of second mounting rods 52 are connected end to end in sequence; the plurality of first mounting rods 51 are arranged one-to-one with a plurality of support rods, one end of the first mounting rod 51 in the length direction is movably connected to the connection point of the adjacent second mounting rod 52, and the other end is movably connected to the base 4; the second mounting rod 52 includes a plurality of connecting rods 2, and the connecting rod 2 is connected to the adjacent connecting rods 2 through the baby crib connecting joint of the above-mentioned embodiment.

[0046] The base 4 includes a support seat 41 and a plurality of adjusting rods 42. The plurality of adjusting rods 42 are arranged around the support seat 41 with the axis of the support seat 41 as the center. One end of the adjusting rod 42 is movably connected to the support seat 41, and the other end is movably connected to the fence 5. The adjusting rod 42 has a horizontal supporting state and a vertical supporting state, and the adjusting rod 42 can switch back and forth between the horizontal supporting state and the vertical supporting state. When the adjusting rod 42 is in the horizontal supporting state, the fence 5 is vertically arranged to the adjusting rod 42. In the present embodiment, four adjusting rods 42 are arranged. When the adjusting rod 42 is in the horizontal state, the plane figure formed by connecting the end points of the four adjusting rods 42 away from one end of the support seat 41 is a rectangle, and the plane formed by the four adjusting rods 42 is perpendicular to the fence 5.

[0047] When the crib is assembled for use, the base 4 is unfolded; the first mounting rods 51 are all perpendicular to the adjustment rod 42, and the second mounting rod 52 and the two first mounting rods 51 connected to the second mounting rod 52 can form a plane perpendicular to the ground, so that a space for the baby to sleep and move is formed between the fence 5 and the base 4. The user can cover the space enclosed by the base 4 and the fence 5 with cloth to complete the construction of the crib;

[0048] When the crib is to be stored, the fabric is removed and the base 4 is adjusted from the unfolded state to the folded state so that the base 4 is in the folded state. The first mounting rod 51 and the second mounting rod 52 are pulled by the adjusting rod 42 to switch from the unfolded state to the bent state, and the connecting rods 2 are also changed to the folded state, so that the base 4 and the fence 5 are both in the folded state, thereby reducing the volume of the crib and improving the convenience of the user when storing and carrying the crib.

[0049] The various variations of the crib connection joints provided in the above embodiments are also applicable to the crib of the present embodiment. Through the above detailed description of the crib connection joints, those skilled in the art can clearly understand the implementation method of the crib of the present embodiment. For the sake of brevity, they will not be described in detail here.

[0050] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A baby crib connection joint, characterized in that: The invention comprises a connecting seat (1), wherein a mounting groove (11) is provided on one side of the connecting seat (1) in the length direction, and the two ends of the mounting groove (11) in the extension direction are connected to the end walls of the connecting seat (1) in the length direction; the two ends of the connecting seat (1) in the length direction are connected to the connecting rods (2) of the baby bed, the ends of the two connecting rods (2) are buckled into the mounting groove (11), and the two connecting rods (2) are respectively hinged to the inner walls of the two ends of the mounting groove (11) in the extension direction; the end wall of the connecting seat (1) in the length direction is provided with an avoidance notch (12), and the avoidance notch (12) is arranged on the side wall of the connecting seat (1) away from the opening, so that the connecting rod (2) can be bent in the direction close to the side wall of the connecting seat (1) away from the opening, and the edges of the side walls of the connecting seat (1) are all rounded.

2. A baby crib connection joint according to claim 1, characterized in that: The connecting rod (2) comprises a first support rod (21) and a second support rod (22), wherein the first support rod (21) and the second support rod (22) are arranged side by side, and the ends of the first support rod (21) and the second support rod (22) are both located in the installation groove (11); and further comprises a connecting member (3), wherein the connecting member (3) is used for connecting and fixing, so that the first support rod (21) and the second support rod (22) are both hinged to the inner wall of the installation groove (11), and the first support rod (21) and the second support rod (22) remain parallel when rotating.

3. A baby crib connection joint according to claim 2, characterized in that: The connecting member (3) comprises a limiting bolt (31) and a limiting nut (32), wherein the limiting bolt (31) is threadedly connected to the limiting nut (32); a first mounting hole (211) adapted to the limiting bolt (31) is provided through a side wall in the length direction of the first support rod (21), and the first mounting hole (211) is arranged at one end of the first support rod (21) close to the connecting seat (1); a second mounting hole (221) adapted to the limiting bolt (31) is provided through a side wall in the length direction of the second support rod (22), and the second mounting hole (221) is arranged at one end of the second support rod (22) close to the connecting seat (1); the connecting seat (1) is penetrated by a plurality of third mounting holes (13) adapted to the limiting bolts (31), the limiting bolts (31) can be sequentially passed through the third mounting holes (13) and the first mounting holes (211), and the limiting bolts (31) can sequentially pass through the third mounting holes (13) and the first mounting holes (221), and the first mounting holes (211) and the second mounting holes (221) are both clearance-matched with the limiting bolts (31).

4. A baby crib connection joint according to claim 3, characterized in that: The second support rod (22) is arranged on a side of the connection seat (1) close to the opening; the cross-sectional profile of the first mounting hole (211) is in the shape of an elongated strip; the length direction of the cross-sectional profile of the first mounting hole (211) is consistent with the length direction of the first support rod (21); a transfer hole (212) is provided through the first support rod (21); a rivet (14) is provided on the connection seat (1); the rivet (14) is sequentially passed through the connection seat (1) and the transfer hole (212); the rivet (14) and the transfer hole (212) are connected to each other. The inner wall is slidably connected; a guide groove (15) is provided on the connection seat (1) for the rivet (14) to slide, and the length direction of the cross section of the guide groove (15) is arranged at an angle with the direction where the axis of the connection seat (1) is located; the end of the guide groove (15) away from the opening direction of the connection seat (1) is extended in the horizontal direction to be provided with a locking hole (16), and the locking hole (16) is connected to the guide groove (15); when the first support rod (21) is parallel to the length direction of the connection seat (1), the rivet (14) is buckled into the locking hole (16).

5. A baby crib connection joint according to claim 4, characterized in that: The end wall of the second support rod (22) close to the connecting seat (1) is provided with a protective sleeve (222), and the protective sleeve (222) is made of a flexible material.

6. The baby crib connection joint according to claim 3, characterized in that: A gasket (33) is provided between the limiting nut (32) and the side wall of the connecting seat (1).

7. The baby crib connection joint according to claim 3, characterized in that: The side wall of the end portion of the limiting bolt (31) on the outer edge side is rounded.

8. A baby crib, characterized in that: The invention comprises a base (4) and a fence (5) which are movably connected to each other, wherein the fence (5) and the base (4) have a folded state and an extended state when in use, and the fence (5) and the base (4) can switch back and forth between the folded state and the extended state; the fence (5) comprises a plurality of first mounting rods (51) and a plurality of second mounting rods (52), wherein the plurality of second mounting rods (52) are connected end to end in sequence; one end of the first mounting rod (51) in the length direction is movably connected to the connection point of the adjacent second mounting rod (52), and the other end is movably connected to the base (4); the second mounting rod (52) comprises a plurality of connecting rods (2), and the connecting rod (2) is connected to the adjacent connecting rod (2) through a baby bed connecting joint as described in any one of claims 1 to 7.

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