Child bed

Abstract

The invention discloses a child bed. The child bed comprises vertical rods, an upper fence, lower supporting rods, locking pieces and a linkage mechanism. The upper fence and the lower supporting rod both have an unfolded state and a folded state, and the locking piece is movably arranged on the upper fence and limits and locks the upper fence in the unfolded state when moving to a locking position; the linkage mechanism comprises a traction assembly and a link rod assembly, and the traction assembly is movably arranged on the vertical rod and connected with the lower supporting rod so that the traction assembly can be driven to move along the vertical rod when the lower supporting rod rotates and is folded towards the vertical rod. The linkage rod assembly is movably arranged on the upper fence and is in abutting transmission fit with the traction assembly, and the linkage rod assembly is further connected with the locking piece, so that when the linkage rod assembly is driven by the traction assembly in an abutting mode, the locking piece is driven to move towards the unlocking position. According to the technical scheme, the folding process of the child bed is simplified, so that the use convenience of the child bed is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of children's products, in particular to a children's bed. Background Art

[0002] Foldable children's beds are favored for use because they have a compact structure after being folded, making them easy to carry. However, when folding the children's beds in the related art, each component of the children's beds needs to be unlocked and folded one by one, which makes the folding process more complicated. Summary of the invention

[0003] The main purpose of the present invention is to provide a child's bed, aiming to simplify the folding process of the child's bed so as to improve the convenience of using the child's bed.

[0004] To achieve the above-mentioned purpose, the child bed proposed by the present invention comprises a vertical pole, an upper fence arranged at the upper end of the vertical pole, a lower support rod arranged at the lower end of the vertical pole, a locking member and a linkage mechanism;

[0005] The upper fence and the lower support rod both have an unfolded state and a folded state, and the locking member is movably arranged on the upper fence and limits and locks the upper fence in the unfolded state when it moves to a locking position;

[0006] The linkage mechanism comprises a traction assembly and a link assembly, wherein the traction assembly is movably arranged on the vertical pole and engaged with the lower support rod, so that when the lower support rod is rotated and folded toward the vertical pole, the traction assembly is driven to move along the vertical pole;

[0007] The link assembly is movably disposed on the upper fence and is in abutment transmission cooperation with the traction assembly. The link assembly is also engaged with the locking member so that when the link assembly is abutted and driven by the traction assembly, it drives the locking member to move toward the unlocking position.

[0008] Optionally, when the lower support rod is rotated and folded toward the vertical rod to drive the traction assembly to move along the vertical rod, the traction assembly pushes the connecting rod assembly so that the connecting rod assembly drives the locking member to move toward the unlocking position;

[0009] The traction assembly is provided with a groove, the groove wall of the groove includes an abutment guide surface, and the link assembly is provided with a convex column;

[0010] When the locking member is located at the locking position, the protruding column is inserted into the groove;

[0011] When the lower support rod is rotated and folded toward the vertical rod to drive the traction assembly to move along the vertical rod, the abutment guide surface slides relatively with the boss to drive the boss to move out of the groove so that the link rod assembly drives the locking member to move to the unlocking position.

[0012] Optionally, the abutting guide surface is arranged to extend obliquely as a whole, and the abutting guide surface is arranged to be inclined downward, and the convex column is provided with a matching surface adapted to abut against the abutting guide surface.

[0013] When the lower support rod is rotated and folded toward the vertical rod to drive the traction assembly to move downward on the vertical rod, the abutment guide surface and the matching surface slide relative to each other to drive the protruding column to move out of the groove.

[0014] Optionally, the upper fence includes a connecting seat and two fence rods rotatably mounted on opposite sides of the connecting seat, the locking piece is movably arranged on the fence rods, and the connecting seat is provided with a locking groove matched with the locking piece;

[0015] In the locking position, the locking member is positioned in the locking groove to limit the relative rotation of the surrounding rod and the connecting seat; in the unlocking position, the locking member is disengaged from the locking groove, and the surrounding rod can be rotated and folded toward the direction of approaching the vertical rod.

[0016] Optionally, the locking member is slidably arranged along the extension direction of the surrounding rod, and has a sliding pin protruding from the surrounding rod along the radial direction of the surrounding rod, and the sliding pin is slidably arranged in the locking groove;

[0017] The connecting seat is also provided with a sliding avoidance groove, and when the surrounding rod rotates relative to the vertical rod, the sliding pin slides along the sliding avoidance groove.

[0018] Optionally, the child bed further comprises an oblique support rod, which is supported between the vertical rod and the surrounding rod in the unfolded state;

[0019] The oblique support rods are movably connected to the vertical rods and the surrounding rods respectively, so as to drive the oblique support rods to be folded between the surrounding rods and the vertical rods when the surrounding rods are folded toward the vertical rods;

[0020] One end of the oblique support rod is rotatably connected to the surrounding rod, and the other end of the oblique support rod is slidably connected to the vertical rod and is rotatably arranged relative to the vertical rod;

[0021] The vertical rod is provided with an upper sliding member slidably arranged along the extension direction of the vertical rod, and the end of the oblique support rod away from the surrounding rod is rotatably mounted on the upper sliding member;

[0022] The upper sliding member is an upper sliding sleeve which is sleeved outside the vertical pole.

[0023] Optionally, the traction assembly cooperates with the upper sliding member so that when the traction assembly moves downward along the vertical pole, the upper sliding member is driven to move so as to pull the surrounding rod to rotate and fold in a direction close to the vertical pole;

[0024] When the traction assembly moves downward along the vertical rod, the traction assembly first drives the link assembly to move to unlock the locking member, and at this time, the traction assembly slides relative to the upper sliding member;

[0025] After the traction assembly moves along the vertical rod to unlock the locking member, the traction assembly abuts against the upper sliding member and drives the upper sliding member to move synchronously.

[0026] Optionally, the traction member assembly comprises a traction member and an upper seat body, the traction member is extended along the extension direction of the vertical pole, and the upper seat body is slidably disposed in the vertical pole and is provided with the groove;

[0027] The upper seat body is provided with a driving pin shaft, the driving pin shaft extends outside the vertical rod and is slidably arranged with the vertical rod, and drives the upper sliding member to move after the driving pin shaft moves to abut against the upper sliding member.

[0028] Optionally, the vertical pole is provided with a lower sliding member slidably arranged along the extension direction of the vertical pole, and the lower support rod comprises a top support rod and a bottom support rod arranged side by side and spaced apart, and one end of the top support rod and the bottom support rod close to the vertical pole are both rotatably connected to the lower sliding member;

[0029] The child bed also has a connecting rod, one end of which is rotatably connected to the vertical rod, and the other end of which is rotatably connected to the top support rod, and the connecting rod and the vertical rod are connected at a position above the lower sliding member, and the connecting rod and the top support rod are connected at a position farther from the vertical rod than the connecting rod and the lower sliding member.

[0030] The traction assembly cooperates with the lower sliding member to drive the lower sliding member to slide and pull the traction assembly to move when the lower support rod is folded toward the vertical rod.

[0031] Optionally, the vertical pole is provided with a lower sliding member slidably arranged along the extension direction of the vertical pole, and a fixing seat fixed on the vertical pole, and the fixing seat is located below the lower sliding member;

[0032] One end of the lower support rod close to the vertical rod is rotatably connected to the lower sliding member;

[0033] The child bed also has a connecting rod, one end of which is rotatably connected to the lower sliding member, and the other end of which is rotatably connected to the lower support rod, and the joint position of the lower support rod and the fixing seat is farther away from the vertical rod than the joint position of the lower support rod and the connecting rod;

[0034] The traction assembly cooperates with the lower sliding member to drive the lower sliding member to slide and pull the traction assembly to move when the lower support rod is folded toward the vertical rod.

[0035] During use of the child bed of the technical solution of the present invention, when the user drives the lower support rod of the child bed to rotate, fold and move closer to the vertical rod, the traction assembly in the linkage mechanism can be driven to move along the extension direction of the vertical rod. In the process of moving along the vertical rod, the traction assembly can abut against the driving link rod assembly, so as to drive the locking member to move to the unlocking position through the link rod assembly, thereby releasing the limit lock of the upper fence, so that the upper fence can also rotate, fold and move closer to the vertical rod. Therefore, the structural setting of the child bed in this solution realizes the unlocking of the upper fence at the same time during the rotation and folding process of the lower support rod. At this time, there is no need to perform the relatively cumbersome step-by-step unlocking operation on the lower support rod and the upper fence of the child bed, which simplifies the folding process of the child bed, thereby facilitating the convenience of using the child bed. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0037] Figure 1 It is a structural schematic diagram of an embodiment of a children's bed of the present invention;

[0038] Figure 2 for Figure 1 A schematic diagram of a folding process of a children's bed;

[0039] Figure 3 for Figure 1 A schematic diagram of the structure of the medium children's bed in a folded state;

[0040] Figure 4 for Figure 1 Another perspective diagram of the children's bed;

[0041] Figure 5 for Figure 4 A schematic cross-sectional view of a medium-sized children's bed;

[0042] Figure 6 for Figure 5A local enlarged schematic diagram of the middle A;

[0043] Figure 7 It is a structural schematic diagram of another embodiment of a children's bed of the present invention;

[0044] Figure 8 for Figure 7 A schematic diagram of a folding process of a children's bed;

[0045] Fig. 9 for Figure 7 A schematic diagram of the structure of the medium children's bed in a folded state;

[0046] Fig.10 for Figure 7 Another perspective diagram of the children's bed;

[0047] Fig.11 for Fig.10 A schematic cross-sectional view of a medium children's bed;

[0048] Fig.12 It is a structural schematic diagram of another embodiment of a children's bed of the present invention;

[0049] Fig.13 for Fig.12 A schematic diagram of the partial structure of the medium children's bed in a folded state;

[0050] Fig.14 for Fig.13 A schematic cross-sectional view of a child's bed;

[0051] Fig.15 for Fig.14 A partial enlarged schematic diagram of point B in the middle;

[0052] Fig.16 It is a partial structural schematic diagram of another embodiment of a children's bed of the present invention in a folded state;

[0053] Fig.17 for Fig.16 A cross-sectional schematic diagram of;

[0054] Fig.18 for Fig.17 A partial enlarged schematic diagram of point C in the middle.

[0055] Description of Figure Numbers:

[0056] 100, child's bed; 10, upright pole; 11, upper sliding member; 111, upper sliding sleeve; 12, lower sliding member; 121, lower sliding sleeve; 13, fixed seat; 14, first upright pole; 141, rolling part; 20, upper fence; 21, connecting seat; 211, locking groove; 212, sliding avoidance groove; 22, fence; 221, stop seat; 222, elastic member; 30, lower support rod; 31, top support rod; 32, bottom support Rod; 40, locking member; 41, sliding pin; 50, linkage mechanism; 51, traction assembly; 511, groove; 511a, abutment guide surface; 512, traction member; 513, upper seat; 514, lower seat; 52, connecting rod assembly; 521, boss; 521a, mating surface; 522, connecting rod; 523, limit seat; 60, oblique support rod; 70, connecting rod; 80, angle connector; 90, base.

[0057] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0058] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0059] It should be noted that all directional indications in the embodiments of the present application (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0060] In this application, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0061] In addition, the descriptions of "first", "second", etc. in this application are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text is to include three parallel solutions. Taking "A and / or B as an example", it includes solution A, or solution B, or a solution that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0062] Please refer to Figures 1 to 5 The present application proposes a children's bed, comprising a vertical pole 10, an upper fence 20 arranged at the upper end of the vertical pole 10, a lower support rod 30 arranged at the lower end of the vertical pole 10, a locking piece 40 and a linkage mechanism 50; the upper fence 20 and the lower support rod 30 both have an unfolded state and a folded state, the locking piece 40 is movably arranged on the upper fence 20 and limits the locking of the upper fence 20 in the unfolded state when it is moved to the locked position; the linkage mechanism 50 comprises a traction assembly 51 and a connecting rod assembly 52, the traction assembly 51 is movably arranged on the vertical pole 10 and engaged with the lower support rod 30, so that when the lower support rod 30 is rotated and folded toward the vertical pole 10, the traction assembly 51 is driven to move along the vertical pole 10; the connecting rod assembly 52 is movably arranged on the upper fence 20, and is in abutment and transmission cooperation with the traction assembly 51, and the connecting rod assembly 52 is also engaged with the locking piece 40, so that when the connecting rod assembly 52 is abutted and driven by the traction assembly 51, the locking piece 40 is driven to move toward the unlocking position.

[0063] The vertical rod 10 can be extended in the vertical direction when the child bed 100 is in normal use. In the horizontal projection plane, the cross-section of the vertical rod 10 can be circular, and of course can also be square or rectangular. In addition, the number of vertical rods 10 can be multiple, and the multiple vertical rods 10 are arranged at intervals in the horizontal direction. Moreover, the connection between two adjacent vertical rods 10 is connected end to end in sequence to form a closed loop. For example: when the number of vertical rods 10 is four, the connection between two adjacent vertical rods 10 is connected end to end in sequence to form a square or rectangle.

[0064] The upper fence 20 is arranged at the upper end of the vertical pole 10, and can be extended in the horizontal direction or slightly inclined (for example, forming an angle less than or equal to 10° with the horizontal direction), and can be located between two adjacent vertical poles 10. The number of upper fences 20 can correspond to the number of vertical poles 10. For example, when there are four vertical poles 10, the number of upper fences 20 can also be four, and each upper fence 20 is located between two adjacent vertical poles 10. In addition, in order to facilitate the upper fence 20 to have an unfolded state and a folded state, each upper fence 20 can include a connecting seat 21 and two surrounding rods 22, and the two surrounding rods 22 are respectively rotatably mounted on the opposite sides of the connecting seat 21, and the end of the surrounding rod 22 away from the connecting seat 21 can be rotatably connected to the corresponding vertical pole 10. At this time, in the unfolded state, the two surrounding rods 22 can form a straight angle or a nearly straight angle. In the folded state, the two surrounding rods 22 can form an acute angle. Of course, in other embodiments, each upper fence 20 may also not include a connecting seat 21, and the ends of the two surrounding rods 22 close to each other can be directly rotatably connected. In addition, when the upper fence 20 is folded, the surrounding rods 22 can be rotated and folded toward the vertical pole 10, or the ends of the two surrounding rods 22 that are close to each other can be rotated and folded downward. In this way, on the one hand, the ends of the two upper surrounding rods 22 in the upper fence 20 that are close to each other can be rotated and folded under the action of gravity, thereby improving the convenience of folding the child's bed 100. On the other hand, the rotation and folding direction of the surrounding rod 22 can be opposite to the rotation and folding direction of the lower support rod 30, thereby helping to improve the compactness of the child's bed 100 after folding. In addition, the surrounding rods 22 and the vertical pole 10 can also be directly rotatably connected. Of course, an angle connector 80 can also be provided between the vertical pole 10 and the two surrounding rods 22 adjacent to the vertical pole 10, and the vertical pole 10 and the two surrounding rods 22 adjacent to the vertical pole 10 are respectively rotatably connected to the angle connector 80, thereby realizing an indirect rotation connection between the surrounding rod 22 and the vertical pole 10. At this time, the corner connector 80 is used to conveniently provide a connection position to realize the rotational connection between the vertical pole 10 and the two surrounding rods 22 adjacent to the vertical pole 10. In addition, it should be noted that the rotational connection proposed in the present application can be that one of the connected objects is provided with a rotating shaft, and the other is provided with a rotating hole, and the rotational connection between the connected objects is realized by inserting the rotating shaft into the rotating hole. Of course, it is also possible that both connected objects are provided with rotating holes, and the rotational connection between the connected objects is realized directly by inserting the rotating shaft. That is, the present application does not limit the connection method of the mentioned rotational connection. In addition, in the cross section perpendicular to the extension direction of the surrounding rod 22, the cross section of the surrounding rod 22 can be circular, and of course it can also be square or rectangular, etc.

[0065] The lower support rod 30 is arranged at the lower end of the vertical rod 10, and can be extended in the horizontal direction or slightly inclined (for example, forming an angle less than or equal to 10° with the horizontal direction), and can be located between two diagonal vertical rods 10. Among them, the number of the lower support rods 30 can be set corresponding to the number of vertical rods 10. For example: when there are four vertical rods 10, the number of the lower support rods 30 can be four, and every two lower support rods 30 are located between two diagonal vertical rods 10 and are arranged oppositely. In addition, in order to facilitate the realization of the lower support rod 30 having an unfolded state and a folded state, the end of the lower support rod 30 that is close to each other can be rotatably mounted on the base 90, and the end that is far away can be directly or indirectly rotatably mounted on the corresponding vertical rod 10. In this way, the base 90 is convenient to provide a connection position to rotatably install the lower support rod 30. At the same time, a plurality of lower support rods 30 can be rotatably connected through a base 90, so as to simplify the number of parts and simplify the structure, and it is also convenient to set multiple lower support rods 30 at the same height. At this time, in the unfolded state, the two relative lower support rods 30 can form a straight angle or a nearly straight angle. In the folded state, the two relative lower support rods 30 can form an acute angle. In addition, when the lower support rod 30 is folded, the lower support rod 30 can be rotated and folded toward the vertical rod 10, and of course, it can also be said that the two relative lower support rods 30 can be rotated and folded upward at one end close to each other. In addition, when there is no locking structure between the lower support rod 30 and the vertical rod 10 to lock the two in the unfolded state, the lower support rod 30 can also be driven to unfold and open the vertical rod 10 by the gravity of the base 90. Of course. A locking structure including elastic glass beads can also be set between the lower support rod 30 and the vertical rod 10. The elastic glass beads can be set in one of the lower support rod 30 and the vertical rod 10, and can be elastically extended and inserted into the other of the lower support rod 30 and the vertical rod 10 to achieve locking of the lower support rod 30 and the vertical rod 10 in the unfolded state. When the base 90 is lifted up, the elastic glass beads can be driven to contract to unlock the lower support rod 30 and the vertical rod 10 so that the two can be folded together.

[0066] The locking member 40 can be movably installed on at least one of the fence rods 22 in the upper fence 20, and has a locking position and an unlocking position when it moves relative to the fence rod 22. The locking method of the locking member 40 for the upper fence 20 in the expanded state can be the locking cooperation of the locking member 40 and the locking groove 211 in the upper fence 20 as described below, so as to limit the rotation of the two fence rods 22 relative to the connecting seat 21, thereby realizing the limited locking of the upper fence 21 in the expanded state. Alternatively, the locking member 40 is movably installed on one of the two fence rods 22 in the upper fence 20, and the other of the two fence rods 22 is provided with a slot, and when the two rod bodies are rotated to the expanded state, the locking member 40 can be moved and inserted into the slot, thereby limiting the relative rotation between the two fence rods 22. It can be seen that the present application does not limit the locking method of the locking member 40 on the upper fence 20 in the unfolded state, and ensures that when the locking member 40 moves to the locking position, the two fence rods 22 in the upper fence 20 can be blocked from relative rotation; and when the locking member 40 moves to the unlocking position, the two fence rods 22 in the upper fence 20 can be relatively rotated. In addition, the locking member 40 can be set on the upper fence 20 in a sliding manner or in a rotating manner.

[0067] The linkage mechanism 50, when the lower support rod 30 rotates and folds toward the vertical rod 10, can receive the drive of the lower support rod 30 when rotating and folding through the traction assembly 51, and then abuts and drives the link rod assembly 52, and drives the locking member 40 to move from the locking position to the unlocking position through the link rod assembly 52, so as to achieve the unlocking of the upper fence 20 while folding and retracting the lower support rod 30. Among them, the traction assembly 51 can be arranged on the outside of the vertical rod 10, and of course it can also be arranged on the inside of the vertical rod 10. In addition, when the lower support rod 30 rotates and folds toward the vertical rod 10, the traction assembly 51 can be driven by the lower support rod 30 to slide downward, and of course it can also be driven by the lower support rod 30 to slide upward. In addition, when the lower support rod 30 rotates and folds toward the vertical rod 10, the lower support rod 30 can drive the traction assembly 51 by cooperating with the lower sliding member 12 and the connecting rod 70 as described below. Of course, the lower support rod 30 can also abut and drive the traction assembly 51. It can be seen that the present application does not limit the driving method of the lower support rod 30 on the traction assembly 51. In addition, the connecting rod assembly 52 can be arranged on the outside of the surrounding rod 22 in the upper fence 20, and of course it can also be arranged on the inside of the surrounding rod 22. In addition, the locking member 40 can be connected to the connecting rod assembly 52, so that when the connecting rod assembly 52 is abutted and driven by the traction assembly 51, the locking member 40 can move with the connecting rod assembly 52. ​​At this time, it can not only improve the stability of the locking member 40 driven by the connecting rod assembly 52, but also facilitate the installation and arrangement of the two, so as to improve the convenience of manufacturing the children's bed 100. Of course, the connecting rod assembly 52 and the locking member 40 can also be arranged to abut and drive. That is, the connecting rod assembly 52 can abut and drive the locking member 40 when moving.

[0068] During the use of the child bed 100 of the technical solution of the present application, when the user drives the lower support rod 30 of the child bed 100 to rotate, fold and move closer to the vertical rod 10, the traction assembly 51 in the linkage mechanism 50 can be driven to move along the extension direction of the vertical rod 10. In the process of moving along the vertical rod 10, the traction assembly 51 can abut and drive the link rod assembly 52, so as to drive the locking member 40 to move to the unlocking position through the link rod assembly 52, so as to release the limit lock of the upper fence 20, so that the upper fence 20 can also rotate, fold and move closer to the vertical rod 10. Therefore, the structural setting of the child bed 100 in the present solution realizes the unlocking of the upper fence 20 at the same time during the rotation and folding process of the lower support rod 30. At this time, there is no need to perform the relatively cumbersome step-by-step unlocking operation on the lower support rod 30 and the upper fence 20 of the child bed 100, which simplifies the folding process of the child bed 100, thereby facilitating the convenience of using the child bed 100. Moreover, the linkage mechanism 5050 at this time can improve the stability of transmission by transmitting on the vertical pole 1010 and the upper fence 2020 through the hard traction component 5151 and the first connecting rod component 5252 respectively, which is beneficial to improve the stability and accuracy of unlocking the upper fence 2020.

[0069] Please refer to Figure 5 and Figure 6 In one embodiment of the present application, when the lower support rod 30 is rotated and folded toward the vertical rod 10 and drives the traction assembly 51 to move along the vertical rod 10, the traction assembly 51 pushes the connecting rod assembly 52 so that the connecting rod assembly 52 drives the locking member 40 to move toward the unlocking position; the traction assembly 51 is provided with a groove 511, the groove wall of the groove 511 includes an abutment guide surface 511a, and the connecting rod assembly 52 is provided with a protrusion 521; when the locking member 40 is in the locking position, the protrusion 521 is inserted into the groove 511; when the lower support rod 30 is rotated and folded toward the vertical rod 10 and drives the traction assembly 51 to move along the vertical rod 10, the abutment guide surface 511a and the protrusion 521 slide relative to each other to drive the protrusion 521 to move out of the groove 511 so that the connecting rod assembly 52 drives the locking member 40 to move to the unlocking position.

[0070] In this embodiment, when the lower support rod 30 is rotated and folded toward the upright rod 10, the traction assembly 51 can be driven to move. At this time, the contact guide surface 511a can abut against the extrusion boss 521, thereby driving the boss 521 to move in a direction away from the groove 511, so as to realize the contact drive of the traction assembly 51 against the link rod assembly 52. ​​Among them, the groove 511 and the boss 521 are respectively provided on the traction assembly 51 and the link rod assembly 52, so that when the child bed 100 is in the unfolded state, the traction assembly 51 and the link rod assembly 52 can be relatively stably limited by the plug-in cooperation of the groove 511 and the boss 521, thereby improving the stability of the linkage mechanism 50 and improving the stability of the use of the child bed 100. In addition, the contact guide surface 511a can be an inclined surface, and of course it can also be an arc surface. In addition, in order to improve the compactness of the distribution of the linkage mechanism 50, in the unfolded state, that is, when the link rod assembly 52 is in the locked position, the contact guide surface 511a can be abutted and matched with the boss 521. In addition, it should be noted that, in other embodiments, the traction component 51 may also be provided with a convex portion, and an abutting guide surface 511 a and a convex column 521 are formed on the convex portion to perform abutting transmission cooperation.

[0071] Please refer to Figure 5 and Figure 6 In one embodiment of the present application, the abutment guide surface 511a is extended obliquely as a whole, and the abutment guide surface 511a is inclined downward. The boss 521 is provided with a matching surface 521a that is adapted to abut the abutment guide surface 511a. When the lower support rod 30 is rotated and folded toward the vertical rod 10 to drive the traction assembly 51 to move downward on the vertical rod 10, the abutment guide surface 511a and the matching surface 521a slide relative to each other to drive the boss 521 to move out of the groove 511.

[0072] In this embodiment, the abutment guide surface 511a is set as a downward inclined surface, so that the traction assembly 51 can be set to be driven to move downward when the lower support rod 30 rotates and folds toward the vertical rod 10. At this time, it is convenient to realize that the lower support rod 30 rotates and folds toward the vertical rod 10 to drive the traction assembly 51, and the vertical rod 10 does not need to set a movement space for the traction assembly 51 to move upward at the upper end, which is conducive to reducing the required installation height of the vertical rod 10 and reducing the overall volume of the child bed 100. In addition, the abutment guide surface 511a at this time is also relatively regular, which is conducive to improving the convenience of manufacturing the child bed 100. The setting of the matching surface 521a can improve the stability of the matching between the traction assembly 51 and the connecting rod assembly 52 and improve the stability of the traction assembly 51 driving the connecting rod assembly 52.

[0073] Please refer to Figure 5 and Figure 6In one embodiment of the present application, the locking piece 40 is movably arranged on the surrounding rod 22, and a locking groove 211 cooperating with the locking piece 40 is arranged on the connecting seat 21; when in the locked position, the locking piece 40 is positioned in the locking groove 211 to limit the relative rotation between the surrounding rod 22 and the connecting seat 21; when in the unlocked position, the locking piece 40 is disengaged from the locking groove 211, and the surrounding rod 22 can be rotated and folded in the direction of approaching the vertical pole 10.

[0074] In this embodiment, the upper fence 20 in the unfolded state is locked and unlocked respectively by the cooperation and disengagement of the locking member 40 and the locking groove 211, which can make the structure of locking the upper fence 20 in the unfolded state relatively simple, thereby further improving the convenience of unlocking the upper fence 20 and the convenience of manufacturing the child bed 100. At the same time, the locking member 40 is movably arranged on the fence rod 22, and the locking groove 211 is arranged on the connecting seat 21, so that different components have corresponding arrangement spaces. Among them, the locking groove 211 can extend linearly along the sliding direction of the locking member 40.

[0075] Please refer to Figure 2 , Figure 3 as well as Figure 5 In one embodiment of the present application, the locking member 40 is slidably arranged along the extension direction of the surrounding rod 22, and has a sliding pin 41 protruding from the surrounding rod 22 along the radial direction of the surrounding rod 22, and the sliding pin 41 is slidably arranged in the locking groove 211; the connecting seat 21 also has a sliding avoidance groove 212, and when the surrounding rod 22 rotates relative to the vertical rod 10, the sliding pin 41 slides along the sliding avoidance groove 212.

[0076] In this embodiment, the sliding cooperation between the sliding pin 41 and the sliding avoidance groove 212 facilitates the stable movement of the locking member 40, so as to improve the stability of locking and unlocking the upper fence 20. The sliding avoidance groove 212 may be arc-shaped and connected to the locking groove 211 at one end.

[0077] Please refer to Figures 1 to 5 In one embodiment of the present application, the child bed also has an oblique support rod 60, which is supported between the vertical rod 10 and the surrounding rod 22 in the unfolded state; the oblique support rod 60 is movably connected to the vertical rod 10 and the surrounding rod 22 respectively, so that when the surrounding rod 22 is folded toward the vertical rod 10, the oblique support rod 60 is driven to fold between the surrounding rod 22 and the vertical rod 10; one end of the oblique support rod 60 is rotatably connected to the surrounding rod 22, and the other end of the oblique support rod 60 is slidably connected to the vertical rod 10 and is rotatably arranged relative to the vertical rod 10; an upper sliding member 11 is provided on the vertical rod 10 and is slidably arranged along the extension direction of the vertical rod 10, and one end of the oblique support rod 60 away from the surrounding rod 22 is rotatably installed on the upper sliding member 11; the upper sliding member 11 is an upper sliding sleeve 111 sleeved outside the vertical rod 10.

[0078] In this embodiment, the oblique struts 60 and the upper sliding member 11 are arranged so that when the child bed 100 is in the unfolded state, the upper fence 20 can be supported by the oblique struts 60, thereby facilitating the improvement of the overall stability of the child bed 100. The oblique struts 60 can be a linear rod; of course, it can also be two linear rods arranged at an angle, or further include an arc segment rod between two linear rods arranged at an angle, or an integral arc rod, and the opening of the angle formed by the oblique struts 60 is arranged away from the junction of the vertical rod 10 and the surrounding rod 22. At this time, the oblique struts 60 of such a form facilitate the oblique struts 60 to rotate under force to achieve the folding of the surrounding rod 22 and the vertical rod 10. In addition, one oblique strut 60 can be arranged between each vertical rod 10 and a surrounding rod 22, and of course, two oblique struts 60 can also be arranged, and the two oblique struts 60 can be arranged oppositely and located on both sides of the surrounding rod 22 to improve the stability of the connection. In addition, the upper sliding member 11 is configured as an upper sliding sleeve 111 sleeved outside the vertical rod 10, which can simplify the installation of the two on the one hand, and on the other hand, the vertical rod 10 can guide the sliding of the upper sliding member 11 and further improve the stability of the movement.

[0079] Please refer to Figures 1 to 3 In one embodiment of the present application, the traction assembly 51 cooperates with the upper sliding member 11 to drive the upper sliding member 11 to move when the traction assembly 51 moves downward along the vertical pole 10 to pull the surrounding rod 22 to rotate and fold in the direction of approaching the vertical pole 10.

[0080] In this embodiment, a matching relationship is established between the traction assembly 51 and the upper sliding member 11, so that when the traction assembly 51 moves downward along the vertical pole 10, the movement of the upper sliding member 11 and the oblique support rod 60 can pull the fence 22 to rotate and fold in the direction of approaching the vertical pole 10, thereby facilitating the folding convenience of the upper fence 20 and improving the folding and approaching effect of the upper fence 20 toward the vertical pole 10. In particular, when the traction assembly 51 moves downward along the vertical pole 10, the traction assembly 51 first drives the link assembly 52 to move to unlock the locking member 40, and at this time, the traction assembly 51 and the upper sliding member 11 slide relative to each other; after the traction assembly 51 moves along the vertical pole 10 to unlock the locking member 40, the traction assembly 51 abuts against the upper sliding member 11 and drives the upper sliding member 11 to move synchronously. In this way, the unlocking and folding of the upper fence 20 will not be interfered with, so as to improve the reliability of the folding of the child bed 100.

[0081] Please refer to Figure 5 and Figure 6In one embodiment of the present application, the traction member assembly 51 includes a traction member 512 and an upper seat body 513, the traction member 512 is extended along the extension direction of the vertical pole 10, the upper seat body 513 is slidably set in the vertical pole 10, and is provided with a groove 511; a driving pin is provided on the upper seat body 513, the driving pin extends outside the vertical pole 10 and is slidably set with the vertical pole 10, and drives the upper sliding member 11 to move after the driving pin moves to abut against the upper sliding member 11.

[0082] In this embodiment, the traction member assembly 51 is configured to include a traction member 512 and an upper seat 513, so that the upper seat 513 can be conveniently positioned to provide a groove 513 structure. The traction member 512 can extend the distance so as to achieve transmission cooperation between the traction member assembly 51 and the lower support rod 30 located at the bottom of the child bed 100. In addition, a driving pin is provided on the upper seat 513, and abuts and drives with the sliding member 11, so as to facilitate the above-mentioned implementation that before the traction member 51 drives the link rod assembly 52 to move to unlock the locking member 40, the traction member 51 does not drive the upper sliding member 11; only after the traction member 51 moves along the vertical rod 10 to unlock the locking member 40, the traction member 51 will abut and drive the upper sliding member 11 to move synchronously. Among them, the vertical rod 10 can be provided with a strip hole for the driving pin to pass through and extending along the extension direction of the vertical rod 10. In addition, it should be noted that the traction member assembly 51 can also only include the traction member 512. At this time, a groove 513 may be provided on the traction member 512 .

[0083] Please refer to Figure 5 and Figure 6 In one embodiment of the present application, a stop seat 221 and an elastic member 222 are provided on the surrounding rod 22 , the stop seat 221 is fixed on the surrounding rod 22 , and the elastic member 222 is provided between the connecting rod assembly 52 and the stop seat 221 .

[0084] In this embodiment, one end of the elastic member 222 can contact the link assembly 52, and the stop seat 221 can contact and limit the other end of the elastic member 222. In this way, when the link assembly 52 drives the locking member 40 to move to the unlocking position, the elastic member 222 can be compressed to generate an elastic reset force. After that, after the child bed 100 is unfolded, the elastic member 222 can conveniently drive the link assembly 52 and the locking member 40 to move and reset to the locked position. Among them, the elastic member 222 can be a spring. Moreover, when the child bed 100 is in the unfolded state, the elastic member 222 can have a pre-stressed state, so that the convex column 521 introduced above can be driven to be stably inserted into the groove 511, so as to realize the limit locking of the link assembly 52 when the child bed 100 is in the unfolded state. Of course, since the locking member 40 can be connected to the connecting rod assembly 52, in other words, it can be said that the locking member 40 in the locking position is limited, so as to improve the stability of the locking member 40 in the locking position and improve the stability of the child bed 100 in the unfolded state. Of course, when the child bed 100 is in the unfolded state, the elastic member 222 may not have a pre-stressed state. At this time, the connecting rod assembly 52 can use the elastic glass beads and the surrounding rod 22 introduced above to perform the clamping and limiting, thereby achieving the limit locking of the connecting rod assembly 52 when the child bed 100 is in the unfolded state. In addition, it should be noted that in other embodiments, the elastic member 222 can also be a spring, etc.

[0085] Please refer to Figure 5 In one embodiment of the present application, the connecting rod assembly 52 includes a connecting rod 522 and a limiting seat 523. The connecting rod 522 is extended along the extension direction of the surrounding rod 22. The limiting seat 523 is connected to one end of the connecting rod 522 close to the vertical rod 10. The limiting seat 523 is provided with a protruding column 521. The locking member 40 is connected to one end of the connecting rod 522 away from the limiting seat 523.

[0086] In this embodiment, the connecting rod assembly 52 is configured to include a connecting rod 522 and a limiting seat 523, so that the limiting seat 523 can be used to easily provide a setting position so as to set the boss 521 structure. At the same time, the limiting seat 523 has a larger contact area, and the elastic member 222 introduced above is set between the limiting seat 523 and the stop seat 221. The connecting rod 522 can extend the distance so as to realize the connection between the connecting rod assembly 52 and the locking member 40 located in the middle of the upper fence 20. In addition, it should be noted that the connecting rod assembly 52 can also include only the connecting rod 522. At this time, the boss 521 can be set on the connecting rod 522.

[0087] Please refer to Figure 4 and Figure 5In one embodiment of the present application, a lower sliding member 12 is provided on the vertical rod 10 and is slidably arranged along the extension direction of the vertical rod 10. The lower support rod 30 includes a top support rod 31 and a bottom support rod 32 arranged side by side and spaced apart. The ends of the top support rod 31 and the bottom support rod 32 close to the vertical rod 10 are both rotatably connected to the lower sliding member 12; the child bed also has a connecting rod 70, one end of the connecting rod 70 is rotatably connected to the vertical rod 10, and the other end is rotatably connected to the top support rod 31, and the engaging position of the connecting rod 70 and the vertical rod 10 is located above the lower sliding member 12, and the engaging position of the top support rod 31 and the connecting rod 70 is farther away from the vertical rod 10 than the engaging position of the top support rod 31 and the lower sliding member 12; the traction assembly 51 cooperates with the lower sliding member 11 to drive the lower sliding member 11 to slide and pull the traction assembly 51 to move when the lower support rod 30 is folded toward the vertical rod 10.

[0088] In this embodiment, the lower sliding member 12, the connecting rod 70, the top support rod 31 and the bottom support rod 32 are arranged so that a crank slider mechanism is formed therebetween. In this way, when the bottom support rod 32 and the top support rod 31 in the lower support rod 30 are rotated, folded and unfolded, the lower sliding member 12 can be driven to slide on the vertical pole 10, thereby driving the traction assembly 51 matched with the lower sliding member 12 to move on the vertical pole 10. Moreover, at this time, the vertical pole 10, the traction assembly 51, the lower sliding member 12, the bottom support rod 32, the top support rod 31 and the connecting rod 70 are also connected, which is conducive to improving the stability of the lower support rod 30 driving the traction assembly 51 when rotating, folding and unfolding. The connecting rod 70 may be a linear rod; of course, it may also include two linear rods arranged at an angle, or further include an arc segment rod between two linear rods arranged at an angle, or an integral arc rod, and the opening of the angle formed by the connecting rod 70 is arranged facing away from the connection between the vertical rod 10 and the lower support rod 30. At this time, the connecting rod 70 of such a shape can make the connecting rod 70 better apply a downward force to the lower sliding member 12 after the child bed 100 is in the folded state, so that the child bed 100 can be in a relatively stable folded state. At the same time, when it is in the unfolded state, the shape and structure of the connecting rod 70 can be more compatible with the shape of the vertical rod 10 and the lower support rod 30, and the structure of the connecting rod 70 itself is also more regular, which is conducive to improving the aesthetic appearance of the child bed 100 and the convenience of manufacturing the connecting rod 70. In addition, a connecting rod 70 may be provided between each upright rod 10 and a lower support rod 30, and two connecting rods 70 may also be provided. In this case, the two connecting rods 70 may be arranged opposite to each other and located on both sides of the lower support rod 30 to improve the stability of the connection. In addition, the ends of the bottom support rod 32 and the top support rod 31 away from the lower sliding member 12 may be rotatably connected to the base 90 described above.

[0089] Please refer to Figure 5In one embodiment of the present application, in order to simplify the connection structure and improve the convenience of manufacturing the child bed 100, the lower sliding member 12 can be a lower lower sleeve 121 sleeved outside the vertical rod 10; the traction assembly 51 can also include a lower seat body 514 arranged at the lower end of the traction member 512, and the lower seat body 514 can be provided with a connecting pin, which extends outside the vertical rod 10 and can be connected to the lower sliding member 12. Among them, the vertical rod 10 can be provided with a strip hole through which the connecting pin passes and extends along the extension direction of the vertical rod 10.

[0090] Please refer to Figures 7 to 11 In one embodiment of the present application, a lower sliding member 12 is provided on the vertical rod 10 to slide along the extension direction of the vertical rod 10, and a fixing seat 13 is fixed on the vertical rod 10, and the fixing seat 13 is located below the lower sliding member 12; one end of the lower support rod 30 close to the vertical rod 10 is rotatably connected to the lower sliding member 12; the child's bed also has a connecting rod 70, one end of the connecting rod 70 is rotatably connected to the lower sliding member 12, and the other end is rotatably connected to the lower support rod 30, and the engaging position of the lower support rod 30 and the fixing seat 13 is farther away from the vertical rod 10 than the engaging position of the lower support rod 30 and the connecting rod 70; the traction assembly 51 cooperates with the lower sliding member 11 to drive the lower sliding member 11 to slide and pull the traction assembly 51 to move when the lower support rod 30 is folded toward the vertical rod 10.

[0091] In this embodiment, by setting the fixed seat 13, the lower sliding member 12 and the connecting rod 70, it is also possible to realize that the crank slider mechanism is formed between the several. In this way, when the lower support rod 30 is rotated, folded and unfolded, the lower sliding member 12 can be driven to slide on the vertical rod 10, thereby driving the traction assembly 51 connected to the lower sliding member 12 to move on the vertical rod 10. Moreover, the structure of the lower support rod 30 and the traction assembly 51 at this time can also be relatively simple, thereby helping to improve the convenience of manufacturing the child bed 100. Among them, the lower sliding member 11 can be connected and matched with the lower end of the traction member 512 in the traction assembly 51, so as to omit the setting of the lower seat body 514 and simplify the structure of the traction assembly 51. Of course, the lower sliding member 11 can also be connected and matched with the lower seat body 514 in the traction assembly 51.

[0092] Please refer to Figures 1 to 3 ,as well as Figure 5 ,or, Figures 7 to 9 ,as well as Fig.11In one embodiment of the present application, the folding process of the child bed 100 can be: pull the base 90 upward so that the lower support rod 30 is folded close to the vertical rod 10. At this time, the lower support rod 30 can drive the lower sliding member 12 to move downward through the cooperation of the connecting rod 70, so as to drive the traction assembly 51 to move downward; and the downward traction assembly 51 can abut against the driving connecting rod assembly 52 to drive the locking member 40 to move to the unlocking position; at this time, after the upper fence 20 is unlocked, the two fence rods 22 in the upper fence 20 can be rotated and folded toward the vertical rod 10 under the pull of the upper sliding member 11 and the oblique support rod 60, thereby realizing the overall folding of the child bed 100. Thereafter, the unfolding process of the child bed 100 can be as follows: the base 90 is pressed downward, so that the lower support rod 30 rotates away from the vertical rod 10 and unfolds; at this time, the lower support rod 30 can drive the lower sliding member 12 to move upward through the cooperation of the connecting rod 70, and the fence 22 can drive the upper sliding member 11 to move upward through the cooperation of the oblique support rod 60, and drive the locking member 40 to reset to the locking position under the action of the elastic member 222, so as to lock the upper fence 20 in the unfolded state.

[0093] Please refer to Figures 12 to 18 In one embodiment of the present application, at least one upright 10 is defined as a first upright 14, and a rolling portion 141 is provided at the bottom of the first upright 14; the rolling portion 141 can slide along the extension direction of the first upright 14, and in the upward and downward movement stroke, the rolling portion 141 has a protruding position protruding downward relative to the bottom of the first upright 14, and a retracted position retracted upward relative to the bottom of the first upright 14; the rolling portion 141 is connected to the traction assembly 51, so that when the child bed 100 is converted from the unfolded state to the folded state, the rolling portion 141 can be driven by the traction assembly 51 and move to the protruding position.

[0094] It should be noted that “at least one of the poles 10 is set as the first pole 14 ” includes two poles 10 being set as the first pole 14 , three poles 10 being set as the first pole 14 , or even all poles 10 being set as the first pole 14 .

[0095] Please refer to Fig.14 and Fig.15 ,or Fig.17 and Fig.18 The rolling portion 141 may be a ball or a universal roller, and the present application does not limit the specific structural form of the rolling portion 141.

[0096] Please refer to Fig.14 and Fig.15 ,or Fig.17 and Fig.18When the traction assembly 51 includes the lower seat 514 described above, the rolling portion 141 can be connected to the lower seat 514; and when the traction assembly 51 does not include the lower seat 514, the rolling portion 141 can be connected to the traction member 512 in the traction assembly 51. That is, when the lower support rod 30 is folded and close to the upright rod 10 to drive the traction assembly 51 to move downward, the rolling portion 141 can be driven to protrude so as to abut against the ground through the rolling portion.

[0097] Among them, “when the child bed 100 is converted from the expanded state to the folded state, the traction assembly 51 drives the rolling portion 141 to move to the protruding position” can be understood as, when the child bed 100 leaves the expanded state, the rolling portion 141 leaves the retracted position and immediately protrudes outward relative to the bottom of the first upright 14, and when the child bed 100 reaches the folded state, the rolling portion 141 completely reaches the protruding position. In this manner, the retracted position of the rolling portion 141 corresponds to the expanded state of the child bed 100, and the protruding position of the rolling portion 141 corresponds to the folded state of the child bed 100; it can also be understood as, in the process of the child bed 100 being converted from the expanded state to the folded state, the rolling portion 141 leaves the retracted position and gradually reaches the protruding position. In this manner, the active stroke of the rolling portion 141 between the retracted position and the protruding position only corresponds to a partial interval of the conversion stroke of the child bed 100 between the expanded state and the folded state.

[0098] The bottom of the first vertical rod 14 may be provided with an opening connecting the inner and outer sides of the vertical rod 10 , and in the protruding position, the rolling portion 141 extends out from the opening at the bottom of the first vertical rod 14 .

[0099] In this embodiment, a rolling portion 141 is provided at the bottom of the first vertical pole 14 among the plurality of vertical poles 10, and is connected and matched with the traction assembly 51. In this way, when the child bed 100 moves from the unfolded state to the folded state, the rolling portion 141 can be driven by the traction assembly 51 and protrude downward relative to the bottom of the vertical pole 10 to a protruding position. In this position, the rolling portion 141 can contact the ground, thereby converting the original sliding friction between the first vertical pole 14 and the ground into rolling friction between the rolling portion 141 and the ground, thereby reducing the friction resistance applied by the ground to the first vertical pole 14, so as to further improve the convenience of folding the child bed. In addition, in some embodiments, when the child bed 100 is in the unfolded state, the rolling portion 141 is in the retracted position. Since the rolling portion 141 can be in the retracted position when the crib 100 is in the unfolded state, the first upright 14 contacts the ground through its bottom, thereby increasing the friction resistance between the crib 100 and the ground, preventing the crib 100 from moving relative to the ground, and improving the safety factor of the crib 100.

[0100] The above description is only a preferred embodiment of the present application, and does not limit the patent scope of the present application. All equivalent structural changes made by using the contents of the present application specification and drawings under the inventive concept of the present application, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present application.

Claims

1. A children's bed, characterized in that: include: A vertical pole, an upper fence arranged at the upper end of the vertical pole, a lower support rod arranged at the lower end of the vertical pole, a locking member and a linkage mechanism; The upper fence and the lower support rod both have an unfolded state and a folded state, and the locking member is movably arranged on the upper fence and limits and locks the upper fence in the unfolded state when it moves to a locking position; The linkage mechanism comprises a traction assembly and a link assembly, wherein the traction assembly is movably arranged on the vertical pole and engaged with the lower support rod, so that when the lower support rod is rotated and folded toward the vertical pole, the traction assembly is driven to move along the vertical pole; The link assembly is movably disposed on the upper fence and is in abutment transmission cooperation with the traction assembly. The link assembly is also engaged with the locking member so that when the link assembly is abutted and driven by the traction assembly, it drives the locking member to move toward the unlocking position.

2. The children's bed according to claim 1, characterized in that: When the lower support rod is rotated and folded toward the vertical rod to drive the traction assembly to move along the vertical rod, the traction assembly pushes the connecting rod assembly so that the connecting rod assembly drives the locking member to move toward the unlocking position; The traction assembly is provided with a groove, the groove wall of the groove includes an abutment guide surface, and the link assembly is provided with a convex column; When the locking member is located at the locking position, the protruding column is inserted into the groove; When the lower support rod is rotated and folded toward the vertical rod to drive the traction assembly to move along the vertical rod, the abutment guide surface slides relatively with the boss to drive the boss to move out of the groove so that the link rod assembly drives the locking member to move to the unlocking position.

3. The children's bed according to claim 2, characterized in that: The abutting guide surface is arranged to extend obliquely as a whole, and the abutting guide surface is arranged to be inclined downward, and the convex column is provided with a matching surface adapted to abut against the abutting guide surface. When the lower support rod is rotated and folded toward the vertical rod to drive the traction assembly to move downward on the vertical rod, the abutment guide surface and the matching surface slide relative to each other to drive the protruding column to move out of the groove.

4. The child bed according to claim 2, characterized in that: The upper fence includes a connecting seat and two fence rods rotatably mounted on opposite sides of the connecting seat, the locking piece is movably arranged on the fence rods, and the connecting seat is provided with a locking groove matched with the locking piece; In the locking position, the locking member is positioned in the locking groove to limit the relative rotation of the surrounding rod and the connecting seat; in the unlocking position, the locking member is disengaged from the locking groove, and the surrounding rod can be rotated and folded toward the direction of approaching the vertical rod.

5. The children's bed according to claim 4, characterized in that: The locking member is slidably arranged along the extending direction of the surrounding rod, and has a sliding pin protruding from the surrounding rod along the radial direction of the surrounding rod, and the sliding pin is slidably arranged in the locking groove; The connecting seat is also provided with a sliding avoidance groove, and when the surrounding rod rotates relative to the vertical rod, the sliding pin slides along the sliding avoidance groove.

6. The child bed according to claim 4, characterized in that: The child bed also has an oblique support rod, which is supported between the vertical rod and the surrounding rod in the unfolded state; The oblique support rods are movably connected to the vertical rods and the surrounding rods respectively, so as to drive the oblique support rods to be folded between the surrounding rods and the vertical rods when the surrounding rods are folded toward the vertical rods; One end of the oblique support rod is rotatably connected to the surrounding rod, and the other end of the oblique support rod is slidably connected to the vertical rod and is rotatably arranged relative to the vertical rod; The vertical rod is provided with an upper sliding member slidably arranged along the extension direction of the vertical rod, and the end of the oblique support rod away from the surrounding rod is rotatably mounted on the upper sliding member; The upper sliding member is an upper sliding sleeve which is sleeved outside the vertical pole.

7. The child bed according to claim 6, characterized in that: The traction assembly cooperates with the upper sliding member so that when the traction assembly moves downward along the vertical pole, the upper sliding member is driven to move so as to pull the surrounding rod to rotate and fold in a direction close to the vertical pole; When the traction assembly moves downward along the vertical rod, the traction assembly first drives the link assembly to move to unlock the locking member, and at this time, the traction assembly slides relative to the upper sliding member; After the traction assembly moves along the vertical rod to unlock the locking member, the traction assembly abuts against the upper sliding member and drives the upper sliding member to move synchronously.

8. The child bed according to claim 7, characterized in that: The traction member assembly comprises a traction member and an upper seat body, wherein the traction member is extended along the extension direction of the vertical pole, and the upper seat body is slidably arranged in the vertical pole and is provided with the groove; The upper seat body is provided with a driving pin shaft, the driving pin shaft extends outside the vertical rod and is slidably arranged with the vertical rod, and drives the upper sliding member to move after the driving pin shaft moves to abut against the upper sliding member.

9. The children's bed according to any one of claims 1 to 8, characterized in that: The vertical rod is provided with a lower sliding member slidably arranged along the extension direction of the vertical rod, and the lower support rod comprises a top support rod and a bottom support rod arranged side by side at intervals, and one end of the top support rod and the bottom support rod close to the vertical rod are both rotatably connected to the lower sliding member; The child bed also has a connecting rod, one end of which is rotatably connected to the vertical rod, and the other end of which is rotatably connected to the top support rod, and the connecting rod and the vertical rod are connected at a position above the lower sliding member, and the connecting rod and the top support rod are connected at a position farther from the vertical rod than the connecting rod and the lower sliding member. The traction assembly cooperates with the lower sliding member to drive the lower sliding member to slide and pull the traction assembly to move when the lower support rod is folded toward the vertical rod.

10. The children's bed according to any one of claims 1 to 8, characterized in that: The vertical rod is provided with a lower sliding member slidably arranged along the extension direction of the vertical rod, and a fixing seat fixed on the vertical rod, and the fixing seat is located below the lower sliding member; One end of the lower support rod close to the vertical rod is rotatably connected to the lower sliding member; The child bed also has a connecting rod, one end of which is rotatably connected to the lower sliding member, and the other end of which is rotatably connected to the lower support rod, and the joint position of the lower support rod and the fixing seat is farther away from the vertical rod than the joint position of the lower support rod and the connecting rod; The traction assembly cooperates with the lower sliding member to drive the lower sliding member to slide and pull the traction assembly to move when the lower support rod is folded toward the vertical rod.

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