Child bed

The upper railing is automatically unlocked when the lower support rod rotates by the linkage mechanism of the children's bed, which solves the problem of the cumbersome folding process of existing children's beds and achieves the effect of simplifying folding and improving convenience.

CN223817250UActive Publication Date: 2026-01-23GOODBABY CHILD PROD CO LTD
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Patent Information

Application Number
CN202422946667.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-29
Publication Date
2026-01-23
Estimated Expiration
2034-11-29

AI Technical Summary

Technical Problem

Existing children's beds require unlocking each component step by step when folding, making the folding process cumbersome and affecting ease of use.

Method used

A children's bed was designed that automatically unlocks the upper railing during the rotation and folding process of the lower support rod through the traction component and linkage component in the linkage mechanism, simplifying the folding process.

Benefits of technology

When the lower support rod rotates and folds, the linkage mechanism automatically unlocks the upper railing, simplifying the folding process of the children's bed and improving its convenience and stability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a child bed which 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.
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Description

TECHNICAL FIELD

[0001] The utility model relates to children's articles technical field, especially a children's bed. BACKGROUND

[0002] The foldable children's bed is favored because of its compact structure after folding, which is convenient to carry. However, the children's bed in the related art needs to be unlocked and folded in sequence, which leads to a complicated folding process. SUMMARY

[0003] The utility model discloses a children's bed, which aims to simplify the folding process of the children's bed and improve the convenience of using the children's bed.

[0004] To achieve the above-mentioned purpose, the children's bed comprises a stand, an upper rail arranged at the upper end of the stand, a lower support rod arranged at the lower end of the stand, a locking piece and a linkage mechanism.

[0005] The upper rail and the lower support rod both have an unfolded state and a folded state, and the locking piece is movably arranged on the upper rail and is locked when moved to a locking position.

[0006] The linkage mechanism comprises a traction assembly and a link assembly, and the traction assembly is movably arranged on the stand and is engaged with the lower support rod, so that when the lower support rod is folded towards the stand, the traction assembly is moved along the stand.

[0007] The link assembly is movably arranged on the upper rail and is in abutting transmission cooperation with the traction assembly, and the link assembly is also engaged with the locking piece, so that when the link assembly is driven by the traction assembly, the locking piece is moved towards the unlocking position.

[0008] Optionally, when the lower support rod is folded towards the stand and drives the traction assembly to move along the stand, the traction assembly pushes the link assembly, so that the link assembly drives the locking piece to move towards the unlocking position.

[0009] The traction assembly is provided with a groove, and the groove wall comprises an abutting guide surface, and the link assembly is provided with a convex column.

[0010] When the locking piece is in the locking position, the convex column is inserted into the groove.

[0011] When the lower support rod is folded by rotating towards the vertical rod to drive the traction assembly to move along the vertical rod, the abutting guide surface slides relative to the convex column to drive the convex column to move out of the groove, so that the connecting rod assembly drives the locking member to move to the unlocking position.

[0012] Optionally, the abutting guide surface is integrally arranged in an inclined manner, and the abutting guide surface is arranged in an inclined downward manner, and the convex column is provided with a matching surface matched with the abutting guide surface,

[0013] When the lower support rod is folded by rotating towards the vertical rod to drive the traction assembly to move downwards on the vertical rod, the abutting guide surface slides relative to the matching surface to drive the convex column to move out of the groove.

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

[0015] When the locking position is reached, the locking member is positioned in the locking groove to limit the relative rotation of the fence rod and the connecting seat; when the unlocking position is reached, the locking member is out of the locking groove, and the fence rod can be rotated towards the direction of closing the vertical rod.

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

[0017] The connecting seat further has a sliding avoidance groove, and when the fence rod rotates relative to the vertical rod, the sliding pin slides along the sliding avoidance groove.

[0018] Optionally, the child bed further has an inclined support rod, and in the unfolded state, the inclined support rod is supported between the vertical rod and the fence rod;

[0019] The inclined support rod is movably connected with the vertical rod and the fence rod, so that when the fence rod is closed towards the vertical rod, the inclined support rod is folded between the fence rod and the vertical rod;

[0020] One end of the inclined support rod is rotatably connected with the fence rod, and the other end of the inclined support rod is slidably connected with the vertical rod and arranged in a relative rotation manner with the vertical rod;

[0021] The vertical rod is provided with an upper sliding member arranged in a sliding manner along the extension direction of the vertical rod, and the end of the inclined support rod away from the fence rod is rotatably installed on the upper sliding member;

[0022] The upper sliding member is a sliding sleeve which is sleeved on the upright rod.

[0023] Optionally, the traction assembly cooperates with the upper sliding member to drive the upper sliding member to move to pull the surrounding rod to rotate and fold towards the upright rod when the traction assembly moves downwards along the upright rod.

[0024] When the traction assembly moves downwards along the upright rod, the traction assembly first drives the connecting rod 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 upright 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 arranged to extend along the extension direction of the upright rod, and the upper seat body is arranged to slide in the upright rod and is provided with the recess.

[0027] The upper seat body is provided with a driving pin shaft which extends outside the upright rod and is arranged to slide in the upright 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 upright rod is provided with a lower sliding member which is arranged to slide along the extension direction of the upright rod, and the lower support rod comprises a top support rod and a bottom support rod which are arranged side by side and are spaced apart, and one end of the top support rod and the bottom support rod close to the upright rod is rotatably connected to the lower sliding member.

[0029] The child bed further comprises a connecting rod, one end of the connecting rod is rotatably connected to the upright rod, the other end of the connecting rod is rotatably connected to the top support rod, and the joint position of the connecting rod and the upright rod is located above the lower sliding member, and the joint position of the top support rod and the connecting rod is farther away from the upright rod than the joint position of the top support rod and the lower sliding member.

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

[0031] Optionally, the upright rod is provided with a lower sliding member which is arranged to slide along the extension direction of the upright rod, and a fixing seat is fixed on the upright rod, and the fixing seat is located below the lower sliding member.

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

[0033] The children's bed also has a connecting rod, one end of which is rotatably connected to the lower sliding member and the other end is rotatably connected to the lower support rod. The engagement position of the lower support rod and the fixed seat is farther away from the upright than the engagement position of the lower support rod and the connecting rod.

[0034] The traction component cooperates with the lower sliding member so that when the lower support rod folds and approaches the upright, it drives the lower sliding member to slide, thereby pulling the traction component to move.

[0035] In the use of this utility model's children's bed, when the user drives the lower support rod to rotate and fold towards the upright, the traction component in the linkage mechanism moves along the extension direction of the upright. During this movement, the traction component abuts against and drives the connecting rod assembly, which in turn moves the locking element to the unlocked position, releasing the upper rail's limiting lock so that the upper rail can also rotate and fold towards the upright. Therefore, the structure of this children's bed allows for simultaneous unlocking of the upper rail during the rotation and folding of the lower support rod. This eliminates the need for cumbersome step-by-step unlocking operations on the lower support rod and upper rail, simplifying the folding process and improving the convenience of using the children's bed. Attached Figure Description

[0036] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0037] Figure 1 This is a schematic diagram of the structure of an embodiment of the children's bed of this utility model;

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

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

[0040] Figure 4 for Figure 1 Another perspective illustration of a children's bed;

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

[0042] Figure 6 forFigure 5 A local enlarged view at B in Fig. 1;

[0043] Figure 7 A structural schematic view of another embodiment of the child bed of the present application;

[0044] Figure 8 A structural schematic view of another embodiment of the child bed of the present application; Figure 7 A folding process schematic view of the child bed in Fig. 1;

[0045] Figure 9 A structural schematic view of another embodiment of the child bed of the present application; Figure 7 A structural schematic view of the child bed in Fig. 1 in a folded state;

[0046] Figure 10 A structural schematic view of another embodiment of the child bed of the present application; Figure 7 A schematic view of another perspective of the child bed in Fig. 1;

[0047] Figure 11 A structural schematic view of another embodiment of the child bed of the present application; Figure 10 A sectional schematic view of the child bed in Fig. 1;

[0048] Figure 12 A structural schematic view of another embodiment of the child bed of the present application;

[0049] Figure 13 A structural schematic view of another embodiment of the child bed of the present application; Figure 12 A local structural schematic view of the child bed in Fig. 1 in a folded state;

[0050] Figure 14 A sectional schematic view of the child bed in Fig. 1; Figure 13

[0051] A structural schematic view of another embodiment of the child bed of the present application; Figure 15 Figure 14 A local structural schematic view of another embodiment of the child bed of the present application in a folded state;

[0052] Figure 16 A sectional schematic view of the child bed in Fig. 1;

[0053] Figure 17 Figure 16 A local structural schematic view of another embodiment of the child bed of the present application in a folded state;

[0054] Figure 18 A sectional schematic view of the child bed in Fig. 1; Figure 17 A local enlarged view at C in Fig. 1.

[0055] BRIEF DESCRIPTION OF THE DRAWINGS

[0056] ​​100, child bed; 10, vertical rod; 11, upper sliding piece; 111, upper sliding sleeve; 12, lower sliding piece; 121, lower sliding sleeve; 13, fixing seat; 14, first vertical rod; 141, rolling part; 20, upper fence; 21, connecting seat; 211, locking groove; 212, sliding avoiding groove; 22, fence rod; 221, stop seat; 222, elastic piece; 30, lower supporting rod; 31, top supporting rod; 32, bottom supporting rod; 40, locking piece; 41, sliding pin; 50, linkage mechanism; 51, traction assembly; 511, groove; 511a, abutting guide surface; 512, traction piece; 513, upper seat body; 514, lower seat body; 52, connecting rod assembly; 521, convex column; 521a, matching surface; 522, connecting rod; 523, limiting seat; 60, oblique supporting rod; 70, connecting rod; 80, angle connecting piece; 90, base.

[0057] The realization, functional features and advantages of the utility model will be further explained in combination with embodiments with reference to the drawings. DETAILED DESCRIPTION

[0058] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

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

[0060] In the present application, unless otherwise explicitly specified and limited, the terms "connection", "fixation" and the like should be understood in a broad sense, for example, "fixation" can be fixed connection, or detachable connection, or integral; can be mechanical connection, or electrical connection; can be direct connection, or indirect connection through an intermediate medium; can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0061] In addition, the description related to "first", "second" and the like in the present application is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second" can explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing throughout the text is to include three parallel schemes, for example, "A and / or B" includes A scheme, or B scheme, or A and B scheme. In addition, the technical solutions of various embodiments can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, nor within the protection scope required by the present application.

[0062] Please refer to Figures 1 to 5 The present application provides a child bed, comprising a stand 10, an upper rail 20 provided on the upper end of the stand 10, a lower support rod 30 provided on the lower end of the stand 10, a locking member 40 and a linkage mechanism 50; the upper rail 20 and the lower support rod 30 both have an unfolded state and a folded state, the locking member 40 is movably arranged on the upper rail 20 and is locked when moved to a locking 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 stand 10 and is engaged with the lower support rod 30, so that when the lower support rod 30 is folded towards the stand 10, the traction assembly 51 is driven to move along the stand 10; the connecting rod assembly 52 is movably arranged on the upper rail 20 and is in transmission cooperation with the traction assembly 51, and the connecting rod assembly 52 is also engaged with the locking member 40, so that when the connecting rod assembly 52 is driven by the traction assembly 51, the locking member 40 is driven to move towards the unlocking position.

[0063] The stand 10 can be arranged in the up-down direction when the child bed 100 is in the normal use state. In the horizontal projection plane, the cross section of the stand 10 can be circular, of course, it can also be square or rectangular, etc. In addition, the number of stands 10 can be multiple, and multiple stands 10 are arranged in the horizontal direction. Moreover, the connecting lines between adjacent two stands 10 are connected in sequence to form a closed loop. For example, when the number of stands 10 is four, the connecting lines between adjacent two stands 10 are connected in sequence to form a square or a rectangle.

[0064] The upper fence 20 is arranged at the upper end of the stand pole 10, can be arranged in a horizontal direction or slightly inclined (for example, an angle less than or equal to 10° is formed with the horizontal direction), and can be located between two adjacent stand poles 10. The number of upper fences 20 can correspond to the number of stand poles 10. For example, when the stand pole 10 is provided with four, the number of upper fences 20 can also be four, and each upper fence 20 is located between two adjacent stand 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 fence poles 22, and the two fence poles 22 are respectively rotatably installed on the opposite sides of the connecting seat 21, and the end of the fence pole 22 away from the connecting seat 21 can be rotatably connected to the corresponding stand pole 10. At this time, in the unfolded state, the two fence poles 22 can form a straight angle or an angle close to a straight angle. In the folded state, the two fence poles 22 can form an acute angle. Of course, in other embodiments, each upper fence 20 can also not include a connecting seat 21, and the end of the two fence poles 22 close to each other can be directly rotatably connected. In addition, when the upper fence 20 is folded, the fence pole 22 can be folded and folded towards the stand pole 10, and of course, the end of the two fence poles 22 close to each other can also be folded downward. In this way, on the one hand, the end of the two upper fence poles 22 close to each other in the upper fence 20 can be rotatably folded under the action of gravity, thereby improving the folding convenience of the child bed 100. On the other hand, the folding direction of the fence pole 22 can also be opposite to the folding direction of the lower support pole 30, thereby facilitating the compactness of the child bed 100 after folding. In addition, the fence pole 22 and the stand pole 10 can also be directly rotatably connected. Of course, an angle connecting piece 80 can also be arranged between the stand pole 10 and the two fence poles 22 adjacent to the stand pole 10, and the stand pole 10 and the two fence poles 22 adjacent to the stand pole 10 are rotatably connected to the angle connecting piece 80, thereby indirectly rotatably connecting the fence pole 22 and the stand pole 10. At this time, the angle connecting piece 80 is convenient to give a connection position to realize the rotatable connection between the stand pole 10 and the two fence poles 22 adjacent to the stand pole 10. In addition, it should be noted that the rotatable 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 rotating shaft is inserted into the rotating hole to realize the rotatable connection between the connected objects. Of course, the connected objects can also be provided with rotating holes, and the rotating shaft is directly inserted to realize the rotatable connection between the connected objects. That is, the present application does not limit the connection mode of the rotatable connection mentioned. In addition, in the cross section perpendicular to the extension direction of the fence pole 22, the cross section of the fence pole 22 can be circular, of course, it can also be square or rectangular, etc.

[0065] The lower support rods 30 are arranged at the lower ends of the vertical rods 10, can be arranged in a horizontal direction or slightly inclined (for example, an angle less than or equal to 10° is formed with the horizontal direction), and can be located between two diagonal vertical rods 10. The number of lower support rods 30 can correspond to the number of vertical rods 10. For example, when the vertical rods 10 are arranged in four, the number of 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 in opposition. In addition, in order to facilitate the lower support rods 30 to have an unfolded state and a folded state, the end of the lower support rod 30 close to the other end can be rotatably mounted on the base 90, and the end far away from the other end can be directly or indirectly rotatably mounted on the corresponding vertical rod 10. In this way, the base 90 is facilitated to provide a connection position to rotatably mount 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 also facilitate the plurality of lower support rods 30 to be arranged at the same height. At this time, in the unfolded state, two opposite lower support rods 30 can form a straight angle or an angle close to a straight angle. In the folded state, two opposite 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 folded and closed towards the vertical rod 10, of course, it can also be said that the end close to the other end of the two opposite lower support rods 30 can be folded and closed upwards. In addition, when no locking structure is arranged between the lower support rod 30 and the vertical rod 10 to lock the two in the unfolded state, the base 90 can also drive the lower support rod 30 to unfold and support the vertical rod 10 by gravity. Of course, the locking structure including a resilient bead can also be arranged between the lower support rod 30 and the vertical rod 10. The resilient bead can be arranged 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, so as to lock the lower support rod 30 and the vertical rod 10 in the unfolded state. When the base 90 is lifted, the resilient bead can be driven to contract, so as to unlock the lower support rod 30 and the vertical rod 10, so that the two can be folded and closed.

[0066] The locking member 40 is movably arranged on at least one of the surrounding rods 22 of the upper fence 20 and has a locking position and an unlocking position when moving relative to the surrounding rod 22. The locking manner of the locking member 40 to the upper fence 20 in the unfolded state can be the locking cooperation of the locking member 40 and the locking slot 211 of the upper fence 20 as described below, so as to limit the rotation of the two surrounding rods 22 relative to the connecting seat 21, thereby achieving the position locking of the upper fence 20 in the unfolded state. Alternatively, the locking member 40 is movably arranged on one of the two surrounding rods 22 of the upper fence 20, and the other of the two surrounding rods 22 is provided with a insertion slot. When the two rod bodies are rotated to the unfolded state, the locking member 40 can be moved and inserted into the insertion slot, thereby limiting the relative rotation between the two surrounding rods 22. It can be seen that the locking manner of the locking member 40 to the upper fence 20 in the unfolded state is not limited in the present application, as long as the locking member 40 can block the relative rotation of the two surrounding rods 22 of the upper fence 20 when moving to the locking position; and the two surrounding rods 22 of the upper fence 20 can rotate relative to each other when the locking member 40 moves to the unlocking position. In addition, the locking member 40 can be slidingly arranged on the upper fence 20, or can be rotatably arranged.

[0067] The linkage mechanism 50 can receive the drive of the lower supporting rod 30 when rotating and folding to the stand rod 10 through the traction assembly 51 when the lower supporting rod 30 rotates and folds to the stand rod 10, and then abuts and drives the connecting rod assembly 52, and drives the locking member 40 to move from the locking position to the unlocking position through the connecting rod assembly 52, thereby achieving the unlocking of the upper fence 20 while folding the lower supporting rod 30. The traction assembly 51 can be arranged on the outer side of the stand rod 10, and can also be arranged on the inner side of the stand rod 10. In addition, the traction assembly 51 can be driven downward by the lower supporting rod 30 when the lower supporting rod 30 rotates and folds to the stand rod 10, and can also be driven upward by the lower supporting rod 30. In addition, the lower supporting rod 30 can drive the traction assembly 51 through the cooperation of the lower sliding member 12 and the connecting rod 70 as described below when the lower supporting rod 30 rotates and folds to the stand rod 10. Of course, the lower supporting rod 30 can abut and drive the traction assembly 51. It can be seen that the driving manner of the lower supporting rod 30 to the traction assembly 51 is not limited in the present application. In addition, the connecting rod assembly 52 can be arranged on the outer side of the surrounding rod 22 of the upper fence 20, and can also be arranged on the inner side of the surrounding rod 22. In addition, the locking member 40 can be connected with the connecting rod assembly 52, so that the locking member 40 can move with the connecting rod assembly 52 when the connecting rod assembly 52 is abutted and driven by the traction assembly 51. At this time, the stability of the connecting rod assembly 52 driving the locking member 40 can be improved, and the convenience of manufacturing the child bed 100 can be improved. Of course, the connecting rod assembly 52 and the locking member 40 can also be arranged in abutting transmission cooperation. That is, the connecting rod assembly 52 can abut and drive the locking member 40 when moving.

[0068] In the use process of the child bed 100 of the technical scheme of the present application, when the user drives the lower support rod 30 of the child bed 100 to rotate and fold towards the stand rod 10, the traction assembly 51 in the linkage mechanism 50 can be driven to move along the extension direction of the stand rod 10. In the movement process of the traction assembly 51 along the stand rod 10, the traction assembly 51 can abut and drive the linkage assembly 52, so as to drive the locking piece 40 to move to the unlocking position through the linkage assembly 52, and the limiting locking of the upper fence 20 is released, so that the upper fence 20 can also rotate and fold towards the stand rod 10. Therefore, the structure of the child bed 100 in the present scheme realizes the unlocking of the upper fence 20 during the rotation and folding of the lower support rod 30. At this time, the user does not need to perform a 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 use of the child bed 100. Moreover, the linkage mechanism 50 at this time is driven through the hard traction assembly 51 and the first linkage assembly 52 on the stand rod 10 and the upper fence 20, respectively, which can improve the stability of the transmission, and thereby facilitate the stability and accuracy of the unlocking of the upper fence 20.

[0069] Please refer to Figure 5 and Figure 6 In an embodiment of the present application, when the lower support rod 30 rotates and folds towards the stand rod 10 to drive the traction assembly 51 to move along the stand rod 10, the traction assembly 51 pushes the linkage assembly 52 to drive the linkage assembly 52 to move the locking piece 40 towards the unlocking position; the traction assembly 51 is provided with a groove 511, the groove wall of the groove 511 includes an abutting guide surface 511a, the linkage assembly 52 is provided with a protruding column 521; when the locking piece 40 is located at the locking position, the protruding column 521 is inserted into the groove 511; when the lower support rod 30 rotates and folds towards the stand rod 10 to drive the traction assembly 51 to move along the stand rod 10, the abutting guide surface 511a slides relative to the protruding column 521 to drive the protruding column 521 to move out of the groove 511, so that the linkage assembly 52 drives the locking piece 40 to move to the unlocking position.

[0070] In the embodiment, when the lower support rod 30 is folded by rotating towards the vertical rod 10, the traction assembly 51 can be moved. At this time, the abutting guide surface 511a can abut against the extrusion protrusion 521, and then drive the protrusion 521 to move away from the groove 511, so as to realize the abutting and driving of the traction assembly 51 to the link assembly 52. Wherein, the groove 511 and the protrusion 521 are arranged on the traction assembly 51 and the link assembly 52 respectively, so that when the child bed 100 is in the unfolded state, the traction assembly 51 and the link assembly 52 can be stably limited by the insertion and cooperation of the groove 511 and the protrusion 521, thereby improving the stability of the linkage mechanism 50 and the stability of the use of the child bed 100. In addition, the abutting guide surface 511a can be a slope, and of course it can also be an arc surface. In addition, in order to improve the compactness of the linkage mechanism 50, when the link assembly 52 is in the locked position in the unfolded state, the abutting guide surface 511a can abut and cooperate with the protrusion 521. In addition, it should be noted that in other embodiments, the traction assembly 51 can be provided with a protrusion, and the abutting guide surface 511a and the protrusion 521 are abutted and driven in cooperation.

[0071] Please refer to Figure 5 and Figure 6 In an embodiment of the present application, the abutting guide surface 511a is arranged to extend obliquely as a whole, and the abutting guide surface 511a is arranged to incline downwardly. The protrusion 521 is provided with a cooperating surface 521a which is adapted to abut against the abutting guide surface 511a. When the lower support rod 30 is folded by rotating towards the vertical rod 10 to drive the traction assembly 51 to move downwardly on the vertical rod 10, the abutting guide surface 511a slides relative to the cooperating surface 521a to drive the protrusion 521 to move away from the groove 511.

[0072] In the embodiment, the abutting guide surface 511a is arranged as a downwardly inclined surface, so that the traction assembly 51 can be arranged to be driven to move downwardly when the lower support rod 30 is folded by rotating towards the vertical rod 10. At this time, it can be convenient to realize the folding of the lower support rod 30 by rotating towards the vertical rod 10 to drive the traction assembly 51, and the vertical rod 10 does not need to be provided with a movement space on the upper end for the traction assembly 51 to move upwardly, thereby facilitating the reduction of the setting height of the vertical rod 10 and the overall volume of the child bed 100. In addition, the abutting guide surface 511a at this time is also relatively regular, thereby facilitating the convenience of manufacturing the child bed 100. The arrangement of the cooperating surface 521a can improve the stability of the cooperation between the traction assembly 51 and the link assembly 52, and improve the stability of the driving of the link assembly 52 by the traction assembly 51.

[0073] Please refer to Figure 5 and Figure 6In an embodiment of the present application, the locking member 40 is movably arranged on the surrounding rod 22, and the connecting seat 21 is provided with a locking groove 211 matched with the locking member 40; when the locking member 40 is in the locking position, the locking member 40 is positioned in the locking groove 211 to limit the relative rotation of the surrounding rod 22 and the connecting seat 21; when the locking member 40 is in the unlocking position, the locking member 40 is separated from the locking groove 211, and the surrounding rod 22 can rotate towards the direction of closing the standing rod 10.

[0074] In the embodiment, the locking and unlocking of the upper fence 20 in the unfolded state are respectively realized by the matching and separation of the locking member 40 and the locking groove 211, so that the structure for locking the upper fence 20 in the unfolded state is relatively simple, thereby facilitating the convenience of unlocking the upper fence 20 and the convenience of manufacturing the child bed 100. Meanwhile, the locking member 40 is movably arranged on the surrounding rod 22, and the locking groove 211 is arranged on the connecting seat 21, so that the corresponding arrangement spaces of different components are facilitated. The locking groove 211 can be linear along the sliding direction of the locking member 40.

[0075] Please refer to Figure 2 , Figure 3 and Figure 5 In an 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 out of 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 further has a sliding avoiding groove 212, and the sliding pin 41 slides along the sliding avoiding groove 212 when the surrounding rod 22 rotates relative to the standing rod 10.

[0076] In the embodiment, the sliding cooperation of the sliding pin 41 and the sliding avoiding 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 avoiding groove 212 can be arc-shaped and communicated with the locking groove 211 at one end.

[0077] Please refer to Figures 1 to 5 In an embodiment of the present application, the child bed further has a diagonal support rod 60, which is supported between the standing rod 10 and the surrounding rod 22 in the unfolded state; the diagonal support rod 60 is movably connected with the standing rod 10 and the surrounding rod 22, so as to be folded between the standing rod 10 and the surrounding rod 22 when the surrounding rod 22 rotates towards the standing rod 10; one end of the diagonal support rod 60 is rotatably connected with the surrounding rod 22, and the other end of the diagonal support rod 60 is slidably connected with the standing rod 10 and is arranged opposite to the standing rod 10; the standing rod 10 is provided with an upper sliding member 11 slidably arranged along the extension direction of the standing rod 10, and the end of the diagonal support rod 60 away from the surrounding rod 22 is rotatably mounted on the upper sliding member 11; the upper sliding member 11 is an upper sliding sleeve 111 sleeved on the standing rod 10.

[0078] In the embodiment, the oblique support rod 60 and the upper slide 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 support rod 60, thereby improving the stability of the child bed 100 as a whole. The oblique support rod 60 can be a linear rod body. Alternatively, the oblique support rod 60 can include two linear rod bodies arranged at an angle, or further include an arc-shaped segment rod arranged between the two linear rod bodies arranged at an angle, or be an integral arc-shaped rod body. The oblique support rod 60 is arranged so that the opening of the angle formed by the oblique support rod 60 faces away from the joint between the upright rod 10 and the fence rod 22. In this way, the oblique support rod 60 can be rotated under stress to realize the folding of the fence rod 22 and the upright rod 10. In addition, one oblique support rod 60 can be arranged between each upright rod 10 and the fence rod 22. Alternatively, two oblique support rods 60 can be arranged, which are arranged opposite to each other and on both sides of the fence rod 22 to improve the stability of the connection. In addition, the upper slide 11 is arranged in the upper slide sleeve 111 arranged outside the upright rod 10. This can simplify the installation of the two components and guide the sliding of the upper slide 11 by the upright rod 10 to further improve the stability of the movement.

[0079] For reference Figures 1 to 3 In an embodiment of the present application, the traction assembly 51 cooperates with the upper slide 11 to drive the upper slide 11 to move when the traction assembly 51 moves downward along the upright rod 10, thereby pulling the fence rod 22 to rotate and fold towards the upright rod 10.

[0080] In the embodiment, the traction assembly 51 and the upper slide 11 are arranged in cooperation so that when the traction assembly 51 moves downward along the upright rod 10, the fence rod 22 can be pulled to rotate and fold towards the upright rod 10 by the movement of the upper slide 11 and the oblique support rod 60, thereby improving the convenience of folding the upper fence 20 and the folding effect of the upper fence 20 towards the upright rod 10. When the traction assembly 51 moves downward along the upright rod 10, the traction assembly 51 first drives the connecting rod assembly 52 to move to unlock the locking member 40. At this time, the traction assembly 51 slides relative to the upper slide 11. After the traction assembly 51 moves along the upright rod 10 to unlock the locking member 40, the traction assembly 51 abuts against the upper slide 11 and drives the upper slide 11 to move synchronously. In this way, the unlocking and folding of the upper fence 20 will not be affected, thereby improving the reliability of folding the child bed 100.

[0081] For reference Figure 5 and Figure 6In an embodiment of the present application, the traction assembly 51 comprises a traction member 512 and an upper seat 513, the traction member 512 is arranged to extend along the extension direction of the stand 10, and the upper seat 513 is arranged to slide in the stand 10 and is provided with a recess 511; the upper seat 513 is provided with a driving pin shaft which extends out of the stand 10 and is arranged to slide in the stand 10, and the driving pin shaft drives the upper slide 11 to move after the driving pin shaft abuts against the upper slide 11.

[0082] In the embodiment, the traction assembly 51 is arranged to comprise the traction member 512 and the upper seat 513, so that the structure of the recess 513 is facilitated to be arranged in the upper seat 513. The traction member 512 can extend the distance to realize the transmission cooperation between the traction assembly 51 and the lower support rod 30 at the bottom of the child bed 100. In addition, the driving pin shaft is arranged on the upper seat 513 and abuts against the slide 11 to realize the transmission cooperation, so that the traction assembly 51 does not drive the upper slide 11 to move before the traction assembly 51 drives the link assembly 52 to move to unlock the locking member 40, and only after the traction assembly 51 moves along the stand 10 to unlock the locking member 40, the traction assembly 51 abuts against the upper slide 11 to drive the upper slide 11 to move synchronously. The stand 10 can be provided with a strip-shaped hole through which the driving pin shaft extends along the extension direction of the stand 10. In addition, it should be noted that the traction assembly 51 can only comprise the traction member 512, and the recess 513 can be arranged on the traction member 512.

[0083] For reference Figure 5 and Figure 6 In an embodiment of the present application, the surrounding rod 22 is provided with a stop seat 221 and an elastic member 222, the stop seat 221 is fixed on the surrounding rod 22, and the elastic member 222 is arranged between the link assembly 52 and the stop seat 221.

[0084] In the embodiment, one end of the elastic member 222 can contact the connecting rod assembly 52, and the other end of the elastic member 222 can be limited by the stop seat 221. In this way, when the connecting rod assembly 52 drives the locking member 40 to move to the unlocking position, the elastic member 222 can be compressed to generate an elastic restoring force. After the child bed 100 is unfolded to the position, the elastic member 222 can conveniently drive the connecting rod assembly 52 and the locking member 40 to move to the locking position. The elastic member 222 can be a spring. When the child bed 100 is in the unfolded state, the elastic member 222 can have a pre-pressed state, so that the convex column 521 introduced above can be stably inserted into the groove 511, and the connecting rod assembly 52 in the unfolded state of the child bed 100 can be limited and locked. Of course, since the locking member 40 can be connected to the connecting rod assembly 52, it can also be said that the locking member 40 in the locking position is limited, so that the stability of the locking member 40 in the locking position is improved, and the stability of the child bed 100 in the unfolded state is improved. Of course, when the child bed 100 is in the unfolded state, the elastic member 222 can also not have a pre-pressed state. At this time, the connecting rod assembly 52 can be clamped and limited by the elastic beads and the surrounding rod 22 introduced above, and then the connecting rod assembly 52 in the unfolded state of the child bed 100 can be limited and locked. In addition, it should be noted that in other embodiments, the elastic member 222 can also be a spring sheet.

[0085] Please refer to Figure 5 In an embodiment of the present application, the connecting rod assembly 52 includes a connecting rod 522 and a limiting seat 523. The connecting rod 522 extends 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 convex column 521. The locking member 40 is connected to the other end of the connecting rod 522 away from the limiting seat 523.

[0086] In the embodiment, the connecting rod assembly 52 is provided to include the connecting rod 522 and the limiting seat 523, so that the structure of the convex column 521 is conveniently provided through the limiting seat 523. At the same time, the elastic member 222 introduced above can be arranged between the limiting seat 523 and the stop seat 221 through the limiting seat 523 having a large contact area. The connecting rod 522 can extend the distance to realize the connection between the connecting rod assembly 52 and the locking member 40 in the middle of the upper rail 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 convex column 521 can be arranged on the connecting rod 522.

[0087] Please refer to Figure 4 and Figure 5In an embodiment of the present application, the upright rod 10 is provided with a lower sliding member 12 slidingly arranged along the extending direction of the upright rod 10, the lower support rod 30 comprises a top support rod 31 and a bottom support rod 32 arranged side by side and spaced apart, and the ends of the top support rod 31 and the bottom support rod 32 close to the upright rod 10 are both rotationally connected to the lower sliding member 12; the child bed further has a connecting rod 70, one end of the connecting rod 70 is rotationally connected to the upright rod 10, and the other end is rotationally connected to the top support rod 31, and the joint position of the connecting rod 70 and the upright rod 10 is located above the lower sliding member 12, and the joint position of the top support rod 31 and the connecting rod 70 is farther away from the upright rod 10 than the joint 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 to move the traction assembly 51 when the lower support rod 30 is folded towards the upright rod 10.

[0088] In the present embodiment, the lower sliding member 12, the connecting rod 70, the top support rod 31 and the bottom support rod 32 are arranged to form a crank slider mechanism. Thus, when the bottom support rod 32 and the top support rod 31 in the lower support rod 30 are folded and unfolded, the lower sliding member 12 can be driven to slide on the upright rod 10, and in turn drive the traction assembly 51 cooperating with the lower sliding member 12 to move on the upright rod 10. Moreover, the upright rod 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 also have a connection relationship, which is conducive to improving the stability of the traction assembly 51 driven by the lower support rod 30 when it is folded and unfolded. The connecting rod 70 can be a linear rod body; of course, it can also include two linear rod bodies arranged at an angle, or further include an arc segment rod arranged between the two linear rod bodies arranged at an angle, or be an integral arc-shaped rod body, and the opening of the angle formed by the connecting rod 70 faces away from the connection between the upright rod 10 and the lower support rod 30. At this time, the connecting rod 70 in this form can better exert a downward force on the lower sliding member 12 when the child bed 100 is in the folded state, so that the child bed 100 can be more stably in the folded state. At the same time, when in the unfolded state, the form of the connecting rod 70 can be more suitable for the form of the upright rod 10 and the lower support rod 30, and the structure of the connecting rod 70 itself is more regular, which is conducive to improving the appearance of the child bed 100 and the convenience of manufacturing the connecting rod 70. In addition, one connecting rod 70 can be arranged between each upright rod 10 and a lower support rod 30, and of course, two connecting rods 70 can also be arranged, which are 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 can be rotationally connected to the base 90 introduced above.

[0089] Please refer to Figure 5In an 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 sliding sleeve 121 sleeved on the upright rod 10; the traction assembly 51 can further include a lower seat body 514 arranged at the lower end of the traction member 512, and a connecting pin shaft can be arranged on the lower seat body 514, extending outside the upright rod 10 and being connectable with the lower sliding member 12. The upright rod 10 can be provided with a strip-shaped hole through which the connecting pin shaft extends and along the extension direction of the upright rod 10.

[0090] For reference Figures 7 to 11 In an embodiment of the present application, the upright rod 10 is provided with a lower sliding member 12 slidingly arranged along the extension direction of the upright rod 10, and a fixing seat 13 fixed to the upright rod 10 and located below the lower sliding member 12; the lower support rod 30 is rotatably connected to the lower sliding member 12 at one end close to the upright rod 10; the child bed further has a connecting rod 70, one end of which is rotatably connected to the lower sliding member 12 and the other end is rotatably connected to the lower support rod 30, and the joint position of the lower support rod 30 and the fixing seat 13 is farther away from the upright rod 10 than the joint 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 towards the upright rod 10.

[0091] In the present embodiment, by arranging the fixing seat 13, the lower sliding member 12 and the connecting rod 70, a crank slider mechanism is formed therebetween. Thus, when the lower support rod 30 is folded and unfolded, the lower sliding member 12 can be driven to slide on the upright rod 10, and in turn drive the traction assembly 51 connected to the lower sliding member 12 to move on the upright rod 10. Moreover, the structure of the lower support rod 30 and the traction assembly 51 can be relatively simple, thereby improving the convenience of manufacturing the child bed 100. The lower sliding member 11 can be connected to the lower end of the traction member 512 in the traction assembly 51, so as to omit the arrangement 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 to the lower seat body 514 in the traction assembly 51.

[0092] For reference Figures 1 to 3 and Figure 5 or Figures 7 to 9 and Figure 11In an embodiment of the present application, the folding process of the child bed 100 can be: pulling up the base 90 so that the lower support rod 30 is folded close to the stand rod 10, at this time, the lower support rod 30 can drive the lower sliding piece 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 moving traction assembly 51 can abut and drive the connecting rod assembly 52, so as to drive the locking piece 40 to move to the unlocking position; at this time, the upper rail 20 is unlocked, and the two rail rods 22 in the upper rail 20 can be folded and rotated towards the stand rod 10 under the pulling of the upper sliding piece 11 and the diagonal support rod 60, so as to realize the overall folding of the child bed 100. The unfolding process of the child bed 100 can be: pressing down the base 90 so that the lower support rod 30 is rotated and unfolded away from the stand rod 10; at this time, the lower support rod 30 can drive the lower sliding piece 12 to move upward through the cooperation of the connecting rod 70, and the rail rod 22 can drive the upper sliding piece 11 to move upward through the cooperation of the diagonal support rod 60, and drive the locking piece 40 to reset to the locking position under the action of the elastic piece 222, so as to lock the upper rail 20 in the unfolded state.

[0093] Please refer to Figures 12 to 18 In an embodiment of the present application, at least one stand rod 10 is defined as a first stand rod 14, and the bottom of the first stand rod 14 is provided with a rolling part 141; the rolling part 141 can slide along the extension direction of the first stand rod 14, and in the up-down movement stroke, the rolling part 141 has a protruding position protruding downward relative to the bottom of the first stand rod 14, and a retracted position retracting upward relative to the bottom of the first stand rod 14; the rolling part 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 part 141 can be driven by the traction assembly 51 to move to the protruding position.

[0094] It should be noted that "at least one stand rod 10 is defined as a first stand rod 14" includes two stand rods 10 being defined as first stand rods 14, three stand rods 10 being defined as first stand rods 14, or even all stand rods 10 being defined as first stand rods 14.

[0095] Please refer to Figure 14 and Figure 15 , or Figure 17 and Figure 18 The rolling part 141 can be a ball bearing or a universal roller, and the specific structure of the rolling part 141 is not limited in the present application.

[0096] Please refer to Figure 14 and Figure 15 , or Figure 17 and Figure 18When the traction assembly 51 comprises the lower seat body 514 as introduced above, the rolling part 141 can be connected to the lower seat body 514; when the traction assembly 51 does not comprise the lower seat body 514, the rolling part 141 can be connected to the traction member 512 in the traction assembly 51. That is, in the process of folding the lower support rod 30 close to the stand rod 10 to drive the traction assembly 51 to move downward, the rolling part 141 can be driven to protrude to abut against the ground through the rolling part.

[0097] In the process of converting the child bed 100 from the unfolded state to the folded state, the traction assembly 51 drives the rolling part 141 to move to the protruding position. In one embodiment, the child bed 100 is in the unfolded state, and the rolling part 141 is in the retracted position. In the process of converting the child bed 100 from the unfolded state to the folded state, the rolling part 141 is driven to move from the retracted position to the protruding position. In another embodiment, the child bed 100 is in the unfolded state, and the rolling part 141 is in the protruding position. In the process of converting the child bed 100 from the unfolded state to the folded state, the rolling part 141 is driven to move from the protruding position to the retracted position.

[0098] In one embodiment, the bottom of the first stand rod 14 is provided with an opening communicating the inside and outside of the stand rod 10, and the rolling part 141 protrudes from the opening of the bottom of the first stand rod 14 in the protruding position.

[0099] In the present embodiment, the rolling part 141 is arranged at the bottom of the first stand rod 14 among the plurality of stand rods 10 and connected to the traction assembly 51. In this way, in the process of converting the child bed 100 from the unfolded state to the folded state, the rolling part 141 can be driven by the traction assembly 51 to protrude downward relative to the bottom of the stand rod 10 to the protruding position, and the rolling part 141 can contact the ground in the position, so as to convert the sliding friction between the first stand rod 14 and the ground into the rolling friction between the rolling part 141 and the ground, thereby reducing the frictional resistance of the ground to the first stand rod 14 and further improving the convenience of folding the child bed. Furthermore, in some embodiments, the rolling part 141 is in the retracted position when the child bed 100 is in the unfolded state. Since the rolling part 141 can be in the retracted position when the child bed 100 is in the unfolded state, the first stand rod 14 contacts the ground through the bottom thereof, thereby increasing the frictional resistance between the child bed 100 and the ground and preventing the child bed 100 from moving relative to the ground, thereby improving the safety factor of the child bed 100.

[0100] The above merely describes the preferred embodiments of the present application, and is not intended to limit the patent scope of the present application. Any equivalent structural changes made according to the content of the present application specification and drawings, or direct / indirect application 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: The pole, the upper railing at the upper end of the pole, the lower support rod at the lower end of the pole, the locking element, and the linkage mechanism; Both the upper fence and the lower support rod have an unfolded state and a folded state. The locking member is movably disposed on the upper fence and limits and locks the upper fence in the unfolded state when it is moved to the locking position. The linkage mechanism includes a traction component and a connecting rod component. The traction component is movably disposed on the upright and engages with the lower support rod, so that when the lower support rod rotates and folds toward the upright, it drives the traction component to move along the upright. The linkage assembly is movably mounted on the upper fence and engages with the traction assembly in a transmission connection. The linkage assembly is also engaged with the locking member so that when the linkage assembly is engaged by the traction assembly, it drives the locking member to move toward the unlock position.

2. The children's bed as described in claim 1, characterized in that, When the lower support rod rotates and folds toward the upright, causing the traction assembly to move along the upright, the traction assembly pushes the connecting rod assembly, so that the connecting rod assembly causes the locking member to move toward the unlocking position; The traction assembly is provided with a groove, the groove wall includes an abutting guide surface, and the connecting rod assembly is provided with a protrusion. When the locking member is in the locking position, the protrusion is inserted into the groove; When the lower support rod rotates and folds toward the upright, causing the traction assembly to move along the upright, the abutting guide surface slides relative to the protrusion, thereby driving the protrusion to move away from the groove and causing the connecting rod assembly to move the locking member to the unlocked position.

3. The children's bed as described in claim 2, characterized in that, The abutment guide surface extends obliquely and is inclined downwards. The protruding post has a mating surface that matches and abuts the abutment guide surface. When the lower support rod rotates and folds toward the upright, causing the traction assembly to move downwards on the upright, the abutting guide surface slides relative to the mating surface, thereby driving the protrusion to move and disengage from the groove.

4. The children's bed as described in claim 2, characterized in that, The upper fence includes a connecting seat and two rails rotatably mounted on opposite sides of the connecting seat. The locking element is movably mounted on the rails, and the connecting seat is provided with a locking groove that cooperates with the locking element. In the locked position, the locking member is positioned in the locking groove to restrict the relative rotation of the railing and the connecting seat; in the unlocked position, the locking member disengages from the locking groove, and the railing can rotate and fold towards the upright.

5. The children's bed as described in claim 4, characterized in that, The locking member is slidably disposed along the extension direction of the railing and has a sliding pin that protrudes from the railing in the radial direction of the railing, the sliding pin being slidably disposed within the locking groove; The connecting seat also has a sliding clearance groove, and when the surrounding rod rotates relative to the upright rod, the sliding pin slides along the sliding clearance groove.

6. The children's bed as described in claim 4, characterized in that, The children's bed also has an inclined support rod, which is supported between the upright and the surrounding rod when the bed is unfolded. The diagonal support rod is movably connected to the upright and the surrounding rod respectively, so that when the surrounding rod moves towards the upright and folds up, the diagonal support rod is driven to fold between the surrounding rod and the upright; One end of the inclined support rod is rotatably connected to the surrounding rod, and the other end of the inclined support rod is slidably connected to the upright rod and is rotatably set relative to the upright rod; The upright is provided with an upper sliding member that is slidably disposed along the extension direction of the upright, and the end of the inclined support rod away from the surrounding rod is rotatably mounted on the upper sliding member; The upper sliding component is an upper sliding sleeve fitted outside the upright.

7. The children's bed as described in claim 6, characterized in that, The traction component cooperates with the upper sliding member to drive the upper sliding member to move as the traction component moves downward along the upright to pull the surrounding pole to rotate and fold in the direction of approaching the upright; When the traction assembly moves downward along the upright, the traction assembly first drives the connecting rod assembly to move to unlock the locking member, at which time the traction assembly slides relative to the upper sliding member; After the traction component moves along the upright to unlock the locking member, the traction component abuts against the upper sliding member and drives the upper sliding member to move synchronously.

8. The children's bed as described in claim 7, characterized in that, The traction assembly includes a traction member and an upper seat. The traction member extends along the extension direction of the upright, and the upper seat is slidably disposed within the upright and is provided with the groove. The upper body is provided with a drive pin, which extends outside the upright and slides with the upright. After the drive pin moves to abut against the upper sliding member, it drives the upper sliding member to move.

9. The children's bed as described in any one of claims 1 to 8, characterized in that, The upright is provided with a lower sliding member that is slidably arranged along the extension direction of the upright. The lower support rod includes a top support rod and a bottom support rod arranged side by side at intervals. The ends of the top support rod and the bottom support rod that are close to the upright are rotatably connected to the lower sliding member. The children's bed also has a connecting rod, one end of which is rotatably connected to the upright and the other end is rotatably connected to the top support rod. The joint between the connecting rod and the upright is located above the lower sliding member, and the joint between the top support rod and the connecting rod is farther away from the upright than the joint between the top support rod and the lower sliding member. The traction component cooperates with the lower sliding member so that when the lower support rod folds and approaches the upright, it drives the lower sliding member to slide, thereby pulling the traction component to move.

10. The children's bed as described in any one of claims 1 to 8, characterized in that, The upright is provided with a lower sliding member that is slidably disposed along the extension direction of the upright, and a fixing seat fixed on the upright, wherein the fixing seat is located below the lower sliding member; The lower support rod is rotatably connected to the lower sliding member at one end near the upright rod. The children's bed also has a connecting rod, one end of which is rotatably connected to the lower sliding member and the other end is rotatably connected to the lower support rod. The engagement position of the lower support rod and the fixed seat is farther away from the upright than the engagement position of the lower support rod and the connecting rod. The traction component cooperates with the lower sliding member so that when the lower support rod folds and approaches the upright, it drives the lower sliding member to slide, thereby pulling the traction component to move.