Folding mechanism for a child's article and child's bed

Abstract

A folding mechanism of a children's product and a children's bed, the folding mechanism comprising a base, a rotating frame rotatably connected to the base at one end by a first shaft, a turnover seat rotatably connected to the base by a second shaft, the axis of the first shaft being parallel to the length direction of the rotating frame, the axis of the first shaft being perpendicular to the axis of the second shaft, and a following mechanism being arranged between the turnover seat and the rotating frame, the following mechanism comprising a first following part fixed to the rotating frame and offset from the axis of the first shaft, and a second following part fixed to the turnover seat and offset from the axis of the second shaft and matched with the first following part, under the action of the following mechanism, the turnover seat and the rotating frame can be synchronously rotated relative to the base, and the turnover seat and the rotating frame can be synchronously unfolded or folded relative to the base.

Description

Technical Field

[0001] This invention belongs to the field of children's products, specifically relating to a folding mechanism for children's products and a children's bed. Background Technology

[0002] Children's products mainly involve children's furniture, such as high chairs, swings, beds, and strollers. Their frames are typically designed to be foldable, prioritizing small size, ease of transport, and reduced shipping costs. The ability to fold or unfold in three dimensions in a single operation is a key feature of all foldable children's products. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a folding mechanism for children's products.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a folding mechanism for children's products, the folding mechanism comprising a base, a rotating frame whose end is rotatably connected to the base via an axis, and a flipping seat rotatably connected to the base about two axes, wherein the centerline of the first axis is consistent with the length direction of the rotating frame, and the centerline of the first axis is perpendicular to the centerlines of the second axis.

[0005] Furthermore, a follow-up mechanism is provided between the flipping seat and the rotating frame.

[0006] The follower mechanism includes a follower part fixed on the rotating frame and offset from the center line of the first axis, and a follower part fixed on the flipping seat and offset from the center line of the second axis, which cooperates with the follower part.

[0007] As the flip-up seat rotates relative to the base around the two axes, the two follower parts move around the two axes. During this movement, the two follower parts push the first follower part, causing the rotating frame to rotate relative to the base around the first axis. Conversely, when the rotating frame rotates back relative to the base around the first axis, the first follower part moves back around the first axis. During this movement, the first follower part pushes against and pushes the second follower part, causing the flip-up seat to rotate back relative to the base around the two axes. A folding lock is provided between the flip-up seat and the base, and / or between the rotating frame and the base. When the folding lock is unlocked, under the action of the follower mechanism, the flip-up seat and the rotating frame can rotate synchronously relative to the base, realizing the synchronous unfolding or folding of the flip-up seat and the rotating frame relative to the base.

[0008] In some embodiments, one of the two follower parts is a spherical articulated head, and the other is also a spherical articulated head that engages with it, or a mating groove capable of receiving and disengaging the spherical articulated head. The plane of rotation about one axis and the plane of rotation about two axes are two perpendicular planes. Through the engagement between the two spherical articulated heads, or the engagement between the spherical articulated head and the mating groove, synchronous operation in three-dimensional space is achieved, resulting in a simple mechanism structure.

[0009] In some embodiments, the first follower is a spherical articulated head, and the second follower is a mating groove. During the rotation of the mating groove around the two axes, the spherical articulated head rotates around one axis and enters or exits the mating groove. The groove opening has a guide slope that allows the spherical articulated head to enter or exit stably. Preferably, the mating of the spherical articulated head and the mating groove is such that once the spherical articulated head enters the mating groove, locking the flipping seat to the base, or locking the rotating frame to the base, secures all three components, simplifying the folding lock.

[0010] In some embodiments, the follower mechanism further includes an auxiliary protrusion fixed to the rotating frame and offset from the centerline of the first axis, and an auxiliary slope fixed to the flipping seat and offset from the centerline of the second axis, which cooperates with the auxiliary protrusion. The spherical joint head and the auxiliary protrusion are respectively located on corresponding radial directions with the centerline of the first axis as the center. The guide slope and the auxiliary slope are arranged adjacent to each other and a convex corner portion is formed between them. A concave corner space is formed between the spherical joint head and the auxiliary protrusion to allow the convex corner portion to enter.

[0011] The folding mechanism has an unfolded position and a folded position. In the unfolded position, the spherical joint head is inserted into the mating groove, and the auxiliary protrusion is away from the auxiliary slope. In the folded position, the spherical joint head disengages from the mating groove, the auxiliary protrusion faces the auxiliary slope, and the convex corner is inserted into the concave corner space. During the transition from the unfolded to the folded position, the flipping seat rotates relative to the base around two axes. As the mating groove rotates around the two axes, its opening pushes the spherical joint head, causing the rotating frame to rotate relative to the base around one axis until the spherical joint head disengages from the mating groove. Conversely, during the transition from the folded to the unfolded position, when the rotating frame or the flipping seat rotates relative to the base, the auxiliary slope and the convex corner sequentially push the auxiliary protrusion, providing initial assistance for unfolding. The spherical joint head then gradually contacts the guide slope and enters the mating groove until it reaches the unfolded position.

[0012] In some embodiments, the rotating frame is a flat, elongated tube, comprising a rotating frame body and a rotating frame end sleeve fixed to one end of the rotating frame body. One side of the rotating frame end sleeve is rotatably connected to the base around the axis, and the other side of the rotating frame end sleeve is the follower component. The follower component is integrated with the rotating frame, resulting in a simple appearance.

[0013] In some embodiments, the base includes a base body and a shaft fixed to the base body. The shaft is rotatably inserted into the end sleeve of the rotating frame. The rotating frame body includes a base tube, a telescopic tube slidably sleeved on the base tube, and a telescopic lock disposed between the two. A telescopic control element is slidably or rotatably disposed on the base, and the telescopic control element is connected to the telescopic lock via a telescopic traction cable. The telescopic lock can lock the rotating frame body to multiple length positions.

[0014] In some embodiments, the telescopic control member is slidably disposed on the base, with the sliding direction aligned with the axis of the shaft. The telescopic control member has an operating button located on one side of the rotating frame. When the two follower parts abut against the first follower part, the rotating frame rotates relative to the base around the shaft to its limit position, causing the rotating frame to abut against the operating button. The telescopic control member serves not only as a control button for the telescopic lock but also as a limiting part for the rotation range of the rotating frame relative to the base.

[0015] In some embodiments, the folding lock is disposed between the flip base and the base, and includes an unlocking drive component that slides radially along the front-to-back axis of the two axes on the flip base, a non-circular locking block that slides elastically along the two axes on the base, and a locking pin that slides elastically along the vertical axis of the two axes on the base. The flip base is provided with a locking block groove, a locking pin groove, and a clearance groove communicating with the locking pin groove. The unlocking drive component has an unlocking part protruding towards the locking block and an unlocking part pressing on the locking pin at its upper part. One end of the unlocking drive component is connected to a folding traction cable. The folding lock has a locked state and an unlocked state. In the locked state, the locking block is inserted into the locking block groove, and the locking pin is inserted into the locking pin groove. In the unlocked state, the locking block disengages axially from the locking block groove along the two axes, and the locking pin exits the locking pin groove and enters the clearance groove. The folding lock achieves double locking through the locking block and locking pin, resulting in high strength and heavy load-bearing capacity after locking.

[0016] Another technical problem to be solved by the present invention is to provide a children's bed.

[0017] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is: a children's bed, comprising a folding mechanism of any of the above-mentioned technical solutions for children's products, wherein the folding mechanism has two sets, symmetrically arranged on the left and right sides, the children's bed further comprising an upper frame for installing a bed cover, and a base frame extending in the left-right direction, the rear side of the upper frame being fixed between two flip seats, the other end of each of the rotating frames being rotatably connected to one end of the base frame about three axes, the center line of the first axis of each rotating frame coinciding with the center line of the three axes, and the other end of each rotating frame being fixed with one end of a bed support leg, the two sides of the upper frame being respectively fixed to the corresponding flip seats. The upper frame and the two flip seats on both sides form a whole. When the folding mechanism on both sides is unlocked, the upper frame rotates synchronously, and the flip seats on both sides rotate around the two axes and move downwards to approach the rotating frame. The folding mechanism on both sides drives the rotating frame to rotate around the corresponding axis through its respective follower mechanism. The two bed support legs rotate around the three axes and move towards each other to fold in the opposite position. When the two bed support legs are extended forward and pulled out, the rotating frame rotates back around the corresponding axis. Similarly, the folding mechanism on both sides causes the flip seats to rotate synchronously back around the two axes relative to the base through its respective follower mechanism, and the upper frame is rotated upwards to the unfolded position.

[0018] In some embodiments, the upper frame is provided with an unlocking button mechanism, which is connected to the unlocking drive of the folding lock on both sides via folding traction cables.

[0019] The scope of this invention is not limited to technical solutions formed by specific combinations of the above-described technical features, but also includes other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents. For example, technical solutions formed by substituting the above-described features with (but not limited to) technical features with similar functions disclosed in this application.

[0020] Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art: by cooperating with the first follower and the second follower, the planar rotation of the flipping seat and the base, and the planar rotation of the rotating frame and the base are synchronized and linked, realizing three-dimensional synchronous operation. The base, the rotating frame and the flipping seat are synchronously unfolded or folded, and the structure is simple. Attached Figure Description

[0021] Appendix Figure 1 A 3D view of a children's bed in its unfolded position;

[0022] Appendix Figure 2 A top view of a children's bed transitioning between its unfolded and folded positions;

[0023] Appendix Figure 3 A 3D view of a children's bed in its folded position;

[0024] Appendix Figure 4 This is a bottom view of the children's bed in its folded position.

[0025] Appendix Figure 5 For the appendix Figure 1 AA cross-section view;

[0026] Appendix Figure 6 For the appendix Figure 1 BB cross-section;

[0027] Appendix Figure 7 Explosion due to partial disintegration of the folding mechanism Figure 1 ;

[0028] Appendix Figure 8 Explosion due to partial disintegration of the folding mechanism Figure 2 ;

[0029] Appendix Figure 9 For the appendix Figure 4 CC cross-section;

[0030] Appendix Figure 10 This is a side view of the folding mechanism near the folding position.

[0031] Appendix Figure 11 This is a three-dimensional schematic diagram of the structure of the rotating frame end sleeve;

[0032] The components include: 1. Folding mechanism; 11. Base; 11a. Base body; 11b. First shaft; 12. Rotating frame; 121. Rotating frame body; a. Base tube; b. Telescopic tube; c. Telescopic lock; 122. Rotating frame end sleeve; 13. Flipping seat; 13a. Lock block groove; 13b. Lock pin groove; 13c. Avoidance groove; 131. Reinforcing iron plate; 14. Follower mechanism; 141. Follower part one; 142. Follower part two; 142a. Guide slope; 143. Auxiliary protrusion; 144. Avoidance groove; 144a. Auxiliary slope; 15. Folding lock; 151. Unlocking drive component; 151a. Unlocking part one; 151b. Unlocking part two; 152. Lock block; 152a. Lock block mating part; 153. Lock pin; 154. Lock pin seat; 16. Telescopic control component; 161. Operation button;

[0033] 2. Upper frame; 21. Unlock button mechanism;

[0034] 3. Base frame;

[0035] 4. Bed support legs;

[0036] X1, one axis; X2, two axes; X3, three axes. Detailed Implementation

[0037] Children's products refer to furniture and household items designed for children, which are typically foldable and can be unfolded. These include strollers for children to ride in and push, high chairs for children to eat in, swings, and beds.

[0038] When unfolded, the components are relatively open and in use. Different children's products have functions such as allowing infants and toddlers to sit, lie down, or ride. When folded, the components are relatively close together and in a stowed state, occupying a small space and making them easy to store and transport.

[0039] In this embodiment, the folding mechanism of children's products is used as an example in a children's bed.

[0040] As attached Figure 1-4 As shown, a children's bed includes two sets of folding mechanisms 1, which are symmetrically arranged on the left and right sides, and also includes a closed square upper frame 2 for installing the bed cover and a base frame 3 that extends in the left and right direction.

[0041] The detailed structure of folding mechanism 1 is as follows:

[0042] As attached Figure 1-4 As shown in Figure 9, each folding mechanism 1 includes a base 11, a rotating frame 12 rotatably connected to the base 11 at one end via an axis X1, and a flipping seat 13 rotatably connected to the base 11 around a second axis X2. The axis X1 is aligned with the length direction of the rotating frame 12, and the axis X1 is perpendicular to the axis X2, meaning the plane of rotation around the first axis is perpendicular to the plane of rotation around the second axis, forming a three-dimensional spatial relationship. A folding lock 15 is provided between the flipping seat 13 and the base 11.

[0043] A follower mechanism 14 is provided between the flipping seat 13 and the rotating frame 12, so that the rotating frame 12 also rotates relative to the base 11 during the rotation of the flipping seat 13 relative to the base 11.

[0044] As attached Figure 5 , 6 As shown in Figure 11, in this embodiment, the follower mechanism 14 includes a follower part 141 fixed on the rotating frame 12, which is offset from the axis X1 and has a shape that tends to be a quarter-spherical joint head, and a follower part 142 disposed on the flip seat 13, which is offset from the axis X2 and has a shape that is a mating groove. In this embodiment, the mating groove is a spherical groove that tends to be a quarter-spherical groove.

[0045] As attached Figure 5 , 11 As shown, when the folding mechanism 1 is in the unfolded position, the follower part 141, which is shaped like a spherical articulated head, is inserted into the spherical groove. At this time, the folding lock 15 is in the locked state, that is, the flip seat 13 cannot rotate around the two axes X2 relative to the base 11, and the follower part 141, which is shaped like a spherical articulated head, is locked in the spherical groove. The position of the rotating frame 12 relative to the base 11 is fixed.

[0046] Unlock fold lock 15, as shown in the attached document. Figure 2 , 6 As shown, the flip seat 13 can rotate relative to the base 11 around the second axis X2. The follower part 142, which is in the shape of a spherical groove, moves around the second axis X2. The follower part 141, which is in the shape of a spherical joint head, is pushed by the groove opening of the spherical groove, causing it to move around the first axis X1. During the movement, it gradually separates from the spherical groove, and the folding mechanism 1 is in the folded position.

[0047] That is, after the flip seat 13 is unlocked relative to the base 11, it folds down, and under the action of the follower mechanism 14, the rotating frame 12 also folds and rotates relative to the base 11.

[0048] As attached Figure 9 , 10 As shown in Figure 11, the follower mechanism 14 also includes a structure that assists in the folding mechanism 1 during the initial unfolding phase. This includes an auxiliary protrusion 143 fixed to the rotating frame 12, offset from the centerline of axis X1, and an auxiliary slope 144a fixed to the flipping seat 13, offset from the centerline of axis X2 and cooperating with the auxiliary protrusion 143. An avoidance groove 144 is formed on the inner side surface of the flipping seat 13, and the auxiliary slope 144a is one side opening of the avoidance groove. The opening of the spherical groove has a guide slope 142a that allows the spherical joint head to stably enter or exit. The guide slope 142a and the auxiliary slope 144a are arranged adjacent to each other, forming a convex angle between them.

[0049] As attached Figure 9 As shown, the follower portion 141 of the spherical articulated head and the auxiliary protrusion 143 are respectively located on corresponding radial directions with the axis X1 as the center of the circle. In this embodiment, the two are approximately 90° apart. A concave angle space is formed between the follower portion 141 of the spherical articulated head and the auxiliary protrusion 143, allowing the convex corner portion to enter.

[0050] When the folding mechanism is in the unfolded position, the auxiliary protrusion 143 is away from the auxiliary slope 144a. When the folding mechanism is in the folded position, the auxiliary protrusion 143 faces the auxiliary slope 144a, and the convex corner is inserted into the concave corner space. During the transition of the folding mechanism from the folded position to the unfolded position, when the rotating frame rotates back relative to the base, or the flipping seat rotates back relative to the base, the auxiliary slope and the convex corner sequentially push the auxiliary protrusion, providing a boosting effect for the unfolding start. The spherical joint head then gradually contacts the guide slope and enters the spherical groove until it reaches the unfolded position.

[0051] In this embodiment of the children's bed, as shown in the attached Figure 1-4 As shown, the left and right ends of the base frame 3 are respectively rotatably connected to the lower ends of the corresponding rotating frames 12 on both sides around the three axes X3. The extension line of the center line of the first axis X1 of each rotating frame 12 coincides with the center line of the three axes X3. One end of the bed support leg 4 is fixed to the lower end of the rotating frame 12.

[0052] The rear side of the upper frame 2 is fixed between the left and right flip seats 13, and part of the upper frame 2 is fixed inside the corresponding flip seat 13.

[0053] The unfolded and folded positions of folding mechanism 1 correspond to the unfolded and folded positions of the children's bed. (See attached image.) Figure 1 As shown, when the children's bed is in the unfolded position, the upper frame 2 and the two bed support legs 4 extend forward respectively.

[0054] As attached Figure 2 , 6 As shown, during the transition of the children's bed from the unfolded position to the folded position, the upper frame 2 rotates around the second axis X2 and moves downward toward the rotating frame 12. Under the action of the follower mechanism 14, the rotating frame 12 rotates relative to the base 11 around the first axis X1, thereby causing the two bed support legs 4 to rotate around the third axis X3 and the base frame 3 respectively and move toward each other.

[0055] As attached Figure 3 , 4 As shown, when the children's bed is in the folded position, the upper frame 2 is close to the rotating frame 12, and the two bed support legs 4 are close to each other and close to the base frame 3.

[0056] When the children's bed is transitioning from a folded to an unfolded position, the two bed support legs 4 are turned outwards, moving away from each other and extending forward, or the upper frame 2 is pulled upwards. During this process, as shown in the attached diagram... Figure 9 As shown, the auxiliary slope 144a and the convex corner of the folding mechanism 1 on each side push the auxiliary protrusion 143 in sequence, which plays a role in assisting the unfolding and starting. This helps the spherical joint head to gradually enter the mating groove through the guide slope 142a and continue to rotate out of the bed support leg 4. The spherical joint head can then contact the groove opening of the mating groove, thereby helping the upper frame 2 to lift up.

[0057] Regarding the structure of the folding lock 15, theoretically, any mechanism capable of locking two rotating components can be applied. For example, a push handle adjustment and locking mechanism for a stroller disclosed in patent publication CN2678996Y. The folding lock 15 in this embodiment includes an unlocking drive component 151 that slides radially along the front-rear axis X2 on a flip base 13, a non-circular locking block 152 that slides elastically along the X2 axis on a base 11, and a locking pin 153 that slides elastically along the vertical axis X2 on the base 11. The flip base 13 is provided with a locking block groove 13a, a locking pin groove 13b, and an avoidance groove 13c communicating with the locking pin groove 13b. The unlocking drive component 151 has an unlocking part 151a protruding towards the locking block 152 and an unlocking part 151b located on top and pressing against the locking pin 153. The folding lock 15 has a locked state and an unlocked state. In the locked state, the locking block 152 is inserted into the locking block groove 13a, and the locking pin 153 is inserted into the locking pin groove 13b. In the unlocked state, the locking block 152 disengages from the locking block groove 13a along the X2 axis, and the locking pin 153 exits the locking pin groove 13b and enters the clearance groove 13c. The folding lock achieves double locking through the locking block and the locking pin, resulting in higher strength and greater load-bearing capacity after locking.

[0058] An unlocking button mechanism 21 is provided on the upper frame 2. The unlocking button mechanism 21 is connected to the unlocking drive members 151 of the folding locks 15 on both sides via folding traction cables. By operating the unlocking button mechanism 21, the folding traction cables are pulled, thereby actuating the corresponding unlocking drive members 151 on both sides. The unlocking button mechanism 21 is not the inventive point of this solution. In the prior art, any mechanism that can actuate the folding traction cables on both sides after operation can be applied here, such as the traction cable operation control mechanism for a children's stroller or high chair disclosed in patent publication number CN 2878160Y. ​​Another example is the traction cable operation mechanism for a children's stroller disclosed in patent publication number CN 2678993Y.

[0059] In this embodiment, the rotating frame 12 is a flat, elongated tube, including a rotating frame body 121 and a rotating frame end sleeve 122 fixed to one end of the rotating frame body 121, as shown in the attached figure. Figure 11 As shown, one side of the rotating frame end sleeve 122 is rotatably connected to the base 11 around an axis X1, and the other side of the rotating frame end sleeve 122 is the follower part 141 with a spherical joint head.

[0060] The rotating frame body 121 is length-adjustable, and the user can adjust the rotating frame body 121 to a suitable height according to their own needs. It includes a base tube a, a telescopic tube b that is slidably sleeved on the base tube a, and a telescopic lock c set between the two.

[0061] In this embodiment, the base 11 includes a base body 11a and a shaft 11b fixed to the base body 11a. The shaft 11b is rotatably inserted into one side of the rotating frame end sleeve 122. A rotation angle limiting mechanism is provided between the base body 11a and the rotating frame end sleeve 122, as shown in the attached diagram. Figure 11 As shown, the rotating frame end sleeve 122 has a limiting groove for the limiting protrusion of the base body 11 to be inserted.

[0062] A telescopic control component 16 is slidably or rotatably mounted on the base 11. The telescopic control component 16 is connected to the telescopic lock c via a telescopic traction cable. The telescopic control component 16 is slidably mounted on the base 11, with its sliding direction aligned with the axis X1. The telescopic control component 16 has an operating button 161 located on one side of the rotating frame 12. When the follower part 142 abuts against the follower part 141, the rotating frame 12 rotates relative to the base 11 around the axis X1 to its limit position, causing the rotating frame 12 to rest against the operating button 161, which also serves as a corner limit. Pressing the operating button 161 and dragging the telescopic traction cable controls the locking and unlocking of the telescopic lock c, thereby adjusting the height of the rotating frame 12.

[0063] The structure of the telescopic lock C itself is not an invention point; any mechanism capable of locking two rotating parts can be applied here. For example, the lifting mechanism in patent application CN 2705065Y.

[0064] The above describes the application for children's beds, specifically the simultaneous unfolding and folding of the upper frame 2 and the bed support frame 4. In addition, it can also be applied to the simultaneous unfolding and folding of the wheels of children's strollers, the simultaneous unfolding and folding of the chair support frame of children's high chairs, the simultaneous unfolding and folding of the support frame of children's swings, etc.

[0065] The above embodiments are only for illustrating the technical concept and features of the present invention, and are intended to enable those skilled in the art to understand the content of the present invention and implement it accordingly. They should not be construed as limiting the scope of protection of the present invention. All equivalent changes or modifications made in accordance with the spirit and essence of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A folding mechanism for children's products, characterized in that: The folding mechanism (1) includes a base (11), a rotating frame (12) rotatably connected to the base (11) at one end via a shaft (X1), and a flipping seat (13) rotatably connected to the base (11) around a second shaft (X2). The axis of the first shaft (X1) is aligned with the length direction of the rotating frame (12), and the axis of the first shaft (X1) is perpendicular to the axis of the second shaft (X2). A folding mechanism (13) is provided between the flipping seat (13) and the rotating frame (12) to allow the flipping seat (13) to rotate relative to the base (11) during rotation. The rotating frame (12) also rotates relative to the base (11) via a follower mechanism (14). The follower mechanism (14) includes a follower part (141) fixed on the rotating frame (12) and offset from the axis of the first axis (X1), and a follower part (142) fixed on the flipping seat (13) and offset from the axis of the second axis (X2) and cooperating with the follower part (141). One of the follower part (141) and the follower part (142) is a spherical joint head, and the other is a mating groove that can receive and disengage the spherical joint head. During the rotation of the rotating frame (12) or the flipping seat (13) relative to the base (11), the first follower (141) and the second follower (142) abut against each other, causing the flipping seat (13) or the rotating frame (12) to rotate relative to the base (11), thereby realizing the synchronous three-dimensional expansion or folding of the flipping seat (13) and the rotating frame (12) relative to the base (11). A folding lock (15) is provided between the flipping seat (13) and the base (11), and / or between the rotating frame (12) and the base (11).

2. The folding mechanism for children's products according to claim 1, characterized in that: The cooperation method of the first follower (141) and the second follower (142) is changed so that one of them is a spherical joint head, and the other is also a spherical joint head that cooperates with it.

3. The folding mechanism for children's products according to claim 1, characterized in that: The first follower (141) is a spherical joint head, and the second follower (142) is a mating groove. During the rotation of the mating groove around the second axis (X2), the spherical joint head rotates around the first axis (X1) and enters or exits the mating groove. The groove opening of the mating groove has a guide slope (142a) that allows the spherical joint head to enter or exit stably.

4. The folding mechanism for children's products according to claim 3, characterized in that: The follower mechanism (14) further includes an auxiliary protrusion (143) fixed on the rotating frame (12) and offset from the axis of the first axis (X1), and an auxiliary slope (144a) fixed on the flipping seat (13) and offset from the axis of the second axis (X2) and cooperating with the auxiliary protrusion (143). The spherical joint head and the auxiliary protrusion (143) are respectively located on the corresponding radial directions with the axis of the first axis (X1) as the center. The guide slope (142a) and the auxiliary slope (144a) are arranged adjacent to each other and a convex corner is formed between them. A concave corner space is formed between the spherical joint head and the auxiliary protrusion (143) to allow the convex corner to enter. The folding mechanism has an unfolded position and a folded position. When the folding mechanism is in the unfolded position, the spherical joint head is inserted into the mating groove, and the auxiliary protrusion (143) is away from the auxiliary slope (144a). When the folding mechanism is in the folded position, the spherical joint head is disengaged from the mating groove, the auxiliary protrusion (143) faces the auxiliary slope (144a), and the convex corner is inserted into the concave corner space.

5. The folding mechanism for children's products according to claim 1, characterized in that: The rotating frame (12) is a flat and long tube, including a rotating frame body (121) and a rotating frame end sleeve (122) fixed to one end of the rotating frame body (121). One side of the rotating frame end sleeve (122) is rotatably connected to the base (11) around the axis (X1), and the other side of the rotating frame end sleeve (122) is the follower part (141).

6. The folding mechanism for children's products according to claim 5, characterized in that: The base (11) includes a base body (11a) and a shaft (11b) fixed on the base body (11a). The shaft (11b) is rotatably inserted into the rotating frame end sleeve (122). The rotating frame body (121) includes a base tube (a), a telescopic tube (b) slidably sleeved on the base tube (a), and a telescopic lock (c) disposed between the two. A telescopic control component (16) is slidably or rotatably disposed on the base (11). The telescopic control component (16) and the telescopic lock (c) are connected by a telescopic traction cable.

7. The folding mechanism for children's products according to claim 6, characterized in that: The telescopic control member (16) is slidably disposed on the base (11), and the sliding direction is consistent with the axis of the first shaft (X1). The telescopic control member (16) has an operation button (161), which is located on one side of the rotating frame (12). When the follower part (142) abuts against the follower part (141), the rotating frame (12) rotates relative to the base (11) around the first shaft (X1) to the limit position, so that the rotating frame (12) abuts against the operation button (161).

8. The folding mechanism for children's products according to claim 1, characterized in that: The folding lock (15) is disposed between the flip base (13) and the base (11). The device includes an unlocking drive (151) that slides radially along the front-back axis of the two axes (X2) on the flip base (13), a non-circular locking block (152) that slides elastically along the two axes (X2) on the base (11), and a locking pin (153) that slides elastically along the vertical axis of the two axes (X2) on the base (11). The flip base (13) is provided with a locking block groove (13a), a locking pin groove (13b), and a clearance groove (13c) that communicates with the locking pin groove (13b). The unlocking drive (151) has at least one unlocking part (151a) protruding towards the locking block (152) and an unlocking part (151b) located on the upper part pressing against the locking pin (153). One end of the unlocking drive (151) is connected to a folding traction cable. The folding lock (15) has a locked state and an unlocked state. In the locked state, the lock block (152) is inserted into the lock block groove (13a) and the lock pin (153) is inserted into the lock pin groove (13b). In the unlocked state, the lock block (152) disengages from the lock block groove (13a) along the two axes (X2) and the lock pin (153) exits from the lock pin groove (13b) and enters the clearance groove (13c).

9. A children's bed comprising a folding mechanism for children's products according to any one of claims 1-8, characterized in that: The folding mechanism (1) has two sets, symmetrically arranged on the left and right sides. The children's bed also includes an upper frame (2) for installing a bed cover and a base frame (3) extending in the left and right direction. The rear side of the upper frame (2) is fixed between the flip seats (13) on both sides. The other end of each rotating frame (12) is rotatably connected to one end of the base frame (3) around a three-axis (X3). The center line of the first axis (X1) of each rotating frame (12) coincides with the center line of the three-axis (X3). The other end of the rotating frame (12) is fixed with one end of the bed support leg (4). The children's bed has an unfolded position and a folded position. When the children's bed is in the unfolded position, the upper frame (2) and the two bed support legs (4) extend forward respectively. When the children's bed is converted from the unfolded position to the folded position, the upper frame (2) rotates around the second axis (X2) and moves downward toward the rotating frame (12), and the two bed support legs (4) rotate around the third axis (X3) and move toward each other.

10. The children's bed according to claim 9, characterized in that: The upper frame (2) is provided with an unlocking button mechanism (21), which is connected to the unlocking drive of the folding lock (15) on both sides via folding traction cables.

Images