A children's product

Abstract

The present invention discloses a children's product, comprising a support assembly and a bearing assembly for bearing a child, wherein the bearing assembly is movably connected to the support assembly, and the children's product further comprises a cam, wherein the rotatable cam is arranged between the support assembly and the bearing assembly, and the cam is used to make the bearing assembly periodically move away from and / or approach the support assembly. The children's product provided by the present invention, by arranging the rotatable cam between the support assembly and the bearing assembly, enables the bearing assembly to periodically move away from and / or approach the support assembly, thereby realizing the regular swinging of the bearing assembly. The rotation of the cam can be unidirectional and uniform, without the need for complex circuit programs, and the control method is simpler; at the same time, the rotation of the cam can be converted into a swinging motion of the bearing assembly that periodically reciprocates, with slow changes in speed and direction, and the swinging motion can be linear, which is more in line with the natural swinging mode, and the children experience more comfort.

Description

Technical Field

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

[0002] In the process of children's growth and life, cribs, cradles, rocking chairs, etc. are all indispensable children's products. In order to increase the fun or soothe children, many children's products have a rocking function, so that children can rock gently with the seat, cradle, etc. while sitting or lying, which is comfortable and interesting. In order to facilitate parents' use, more and more rocking children's products are equipped with electric drive mechanisms, which can achieve continuous electric rocking without the need for parents to rock manually, making it more convenient and labor-saving to use.

[0003] In the prior art, there are various swinging principles for children's products. Most of them directly drive seats, cradles and other child-carrying vehicles to swing. The force is relatively direct, the swing amplitude is large and lacks buffering. Children are prone to feel a large impact force, and the center of gravity is unstable, resulting in poor comfort. In addition, for the electric drive swing mechanism, once the swing mechanism has a jam, vibration or other faults, it will be directly transmitted to the child in the vehicle, seriously affecting the riding experience, rather than achieving the effect of soothing and entertainment. Summary of the invention

[0004] The object of the present invention is to overcome the deficiencies of the prior art and provide a swingable children's product with a strong sense of comfort.

[0005] To achieve the above object, the present invention is implemented by the following scheme:

[0006] A children's product, comprising a support component and a bearing component for bearing a child, wherein the bearing component is movably connected to the support component, and the children's product also comprises a cam, wherein the rotatable cam is arranged between the support component and the bearing component, and the cam is used to make the bearing component periodically move away from and / or approach the support component.

[0007] In some embodiments, the bearing assembly is slidably connected to the support assembly in a vertical direction, the cam is disposed on the support assembly, and the bearing assembly cooperates with the cam, so that the rotational motion of the cam can be converted into a periodic up and down swinging motion of the bearing assembly, and the swinging amplitude is gentle and controllable.

[0008] In some embodiments, the children's product further comprises a driving assembly for driving the cam to rotate, and the driving assembly is fixedly arranged on the supporting assembly. In some preferred embodiments, the driving assembly comprises a rotating motor, so that the children's product can realize electrically driven swinging, and parents can save more effort.

[0009] In some embodiments, a support portion for supporting the bearing assembly is provided around the cam, and a cam matching portion is provided at the lower end of the bearing assembly, and the cam matching portion abuts against the support portion. The support portion and the cam matching portion cooperate with each other to realize the up and down swinging of the bearing assembly.

[0010] In some embodiments, the support portion includes a first support portion and a second support portion. When the cam matching portion abuts against the first support portion, the distance between the bearing component and the support component is the shortest; when the cam matching portion abuts against the second support portion, the distance between the bearing component and the support component is the farthest.

[0011] In some embodiments, the support portion further includes a transition section arranged between the first support portion and the second support portion; when the cam mating portion switches between the first support portion and the second support portion, the cam mating portion moves along the transition section and abuts against the transition section. In the radial direction of the cam, the distance between the transition section and the rotation axis is between the distance between the first support portion and the rotation axis and the distance between the second support portion and the rotation axis. And in a more preferred case, the distance between the transition section and the rotation axis changes gradually and transitions smoothly. Therefore, during the entire process of the cam rotating around the rotation axis, the cam mating portion can always matingly abut against the cam, and the cam always forms a stable support for the cam mating portion and the entire bearing assembly, the speed changes slowly, and there is no sense of frustration, and the children experience comfort.

[0012] In some embodiments, along the radial direction of the cam, the distance between the first support portion and the rotation axis of the cam is D1, the distance between the second support portion and the rotation axis of the cam is D2, and the distance between any position on the transition section and the rotation axis of the cam is D3, wherein D1≤D3≤D2. The cam rotates around its own rotation axis, and along the radial direction of the cam, the distance between the first support portion and the rotation axis is smaller than the distance between the second support portion and the rotation axis.

[0013] In some embodiments, the center of gravity of the bearing assembly and the rotation axis of the cam are located in a first vertical plane, the first vertical plane intersects with the cam mating portion, and the first vertical plane intersects with the rotation axis at a position corresponding to the rotation axis. Thus, the center of gravity of the bearing assembly can always fall on the rotation axis at a position corresponding to the rotation axis of the cam, and then be stably transmitted to the ground without swaying left and right / front and back as the cam rotates, the supporting effect of the cam is more stable, the center of gravity of the children's product is stable, and the structure is more reliable.

[0014] In some embodiments, the cam matching portion is a roller connected to the bearing assembly around a first axis, the first axis is parallel to or located in the same vertical plane as the rotation axis of the cam, and the roller and the support portion can be rolled against each other. The roller and the cam are in contact with each other in a rolling friction manner, and the swing effect of the bearing assembly will not be affected by excessive sliding friction, so that the contact and support effect of the cam on the cam matching portion is more stable and reliable.

[0015] In some embodiments, the supporting portion is an outer peripheral wall of the cam, and the outer peripheral wall is parallel to the rotation axis of the cam.

[0016] In some embodiments, the cam mating portion is a roller rotatably connected to the supporting component around a first axis, the first axis is parallel to the rotation axis of the cam or is located in the same vertical plane, and the roller is in rolling contact with the outer peripheral wall; when the cam rotates, the roller rolls along the outer peripheral wall.

[0017] In some embodiments, the bearing assembly includes a limiting rod, the limiting rod extends in the up-down direction, the supporting assembly includes a supporting seat, the supporting seat is provided with a limiting hole, and the limiting rod can be inserted in the limiting hole in a relatively slidable manner in the vertical direction. The limiting rod and the limiting hole form a limiting mechanism, which can guide and limit the up-down sliding of the bearing assembly, ensure that the bearing assembly slides in the vertical direction, and the children's product is more stable and reliable when working.

[0018] In some embodiments, the supporting assembly also includes a connecting rod, which is arranged between the lower ends of the two limit rods, and a connecting seat is fixedly provided in the middle of the connecting rod; the cam matching portion is a roller rotatably connected to the connecting seat around a first axis, the first axis is parallel to the rotation axis of the cam or is located in the same vertical plane, and the roller is rollingly in contact with the support portion.

[0019] In some embodiments, a support groove is opened along the circumference of the cam, and the support portion is arranged on the inner wall of the support groove; the cam matching portion is a roller rotatably connected to the bearing assembly around a first axis, and part of the roller is inserted in the support groove.

[0020] In some embodiments, the cam has multiple groups of supporting teeth in the circumference, and the supporting portion is arranged on the outer wall of the supporting teeth; the cam mating portion is a mating gear rotatably connected to the bearing assembly around a first axis, and the mating gear is provided with multiple groups of rolling teeth, and the rolling teeth are meshed with the supporting teeth.

[0021] In some specific embodiments, the children's product is a chair for children to sit on.

[0022] In other specific embodiments, the children's product is a bed for a child to lie on.

[0023] Due to the application of the above technical solution, the children's product provided by the present invention, by setting the rotatable cam between the support component and the load-bearing component, enables the load-bearing component to periodically move away from and / or approach the support component, thereby realizing the regular swing of the load-bearing component. The rotation of the cam can be unidirectional and uniform, without the need for complex circuit programs, and the control method is simpler; at the same time, the rotational motion of the cam is indirectly transmitted to the load-bearing component and can be converted into a swinging motion of the load-bearing component that periodically reciprocates, changes in speed and direction slowly, and the swinging motion can be linear, which is more in line with the natural swinging mode, and the children's experience is more comfortable. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.

[0025] Figure 1 It is a schematic diagram of the three-dimensional structure of a children's product in a specific embodiment of the present invention;

[0026] Figure 2 for Figure 1 The enlarged schematic diagram at A in the middle;

[0027] Figure 3 This is a schematic diagram of the three-dimensional structure of the children's product in Example 1;

[0028] Figure 4 This is a schematic diagram of the main structure of the children's product in Example 1;

[0029] Figure 5 for Figure 4 Schematic diagram of the cross-sectional structure along the BB direction;

[0030] Figure 6 It is a schematic diagram of the three-dimensional structure of the driving assembly and the cam in Example 1;

[0031] Figure 7 It is a schematic diagram of the three-dimensional structure decomposition of the driving assembly and the cam in Example 1;

[0032] Figure 8 is a schematic front view of the cam in Example 1;

[0033] Fig. 9 This is a schematic side view of the structure of the children's product in Example 1 in the first working state;

[0034] Fig.10 It is a side view structural schematic diagram of the children's product in Example 1 when it switches from the first working state to the second working state;

[0035] Fig.11 This is a schematic side view of the structure of the children's product in Example 1 in the second working state;

[0036] Fig.12 It is a side view structural schematic diagram of the children's product in Example 1 when it switches from the second working state to the first working state;

[0037] Fig.13 is a schematic diagram of the three-dimensional structure of the cam and the cam matching part in Example 2;

[0038] Fig.14 It is a partial cross-sectional three-dimensional structural schematic diagram of the cam and the cam matching part in Example 2;

[0039] Fig.15 It is a schematic diagram of the three-dimensional structure of the cam and the cam matching part in Example 3;

[0040] Among them: 100, support assembly; 100a, base space; 110, base frame; 120, support frame; 121, support rod; 130, support seat; 131, limiting hole; 200, bearing assembly; 210, frame; 211, cloth bag; 220, limiting rod; 230, connecting rod; 231, connecting seat; 3, cam; 31, support part; 311, first support part; 312, second support part; 313, transition section; 32, support groove; 33, support tooth; 4, drive assembly; 41, rotating shaft; 5, roller; 51, matching gear; 511, rolling tooth; 6001, rotation axis; 6002, first axis; 6003, first vertical plane. DETAILED DESCRIPTION

[0041] The present invention is further described below in conjunction with the accompanying drawings and preferred embodiments of the present invention. In the following embodiments, for the convenience of description, the left, right, up, down, front, and back in the definition of direction are all defined with reference to the direction observed by a person sitting on the children's product, which is only for the convenience of describing the invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, only has a specific orientation, is constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0042] Example 1

[0043] See also Figure 1 As shown, this embodiment provides a children's product, which can be a chair for children to sit on, such as a rocking chair or a dining chair, or a bed, a cradle, etc. for children to lie on. Of course, the children's product can also have the functions of both for children to sit on and lie on.

[0044] In this embodiment, the children's product specifically takes a children's cradle as an example, which includes a support component 100 and a carrying component 200 for carrying a child. The carrying component 200 can be movably connected to the support component 100. Here, the carrying component 200 is specifically slidably connected to the support component 100 along the vertical direction Z.

[0045] See also Figures 1 to 3 As shown, in this embodiment, the support assembly 100 is located as a whole below the bearing assembly 200, and the support assembly 100 mainly includes a base frame 110, a support frame 120 and a support seat 130. Among them, the base frame 110 can be supported on the ground, and the support frame 120 is fixed above the base frame 110. Here, the support frame 120 includes two groups of support rods 121 that are respectively in an n-shaped shape as a whole, and the lower end of each support rod 121 is fixed on the base frame 110, so that the support frame 120 and the base frame 110 are jointly enclosed to form a base space 100a of the children's product, so that the support assembly 100 has a certain height. The support seat 130 is fixed between the two groups of support rods 121 and is located above the above-mentioned base space 100a. The support seat 130 is also provided with two limit holes 131 arranged at intervals along the front-to-back direction Y.

[0046] The bearing assembly 200 mainly includes a frame 210, a limiting rod 220 and a connecting rod 230. The frame 210 is enclosed to form a bearing space for children to sit and / or lie down. In this embodiment, a cloth bag 211 is also fixed on the frame 210 to form a comfortable cradle. In other embodiments, the frame 210 can be replaced by various forms of bearing devices such as children's beds and seats in the prior art. The limiting rod 220 is fixed at the bottom of the frame 210. In this embodiment, the limiting rod 220 has two limiting rods 220 arranged at intervals along the front-to-back direction Y, and each limiting rod 220 extends in the up-down direction, so that each limiting rod 220 can be inserted into a limiting hole 131 correspondingly, and can pass through the limiting hole 131 to slide relatively in the vertical direction. A connecting rod 230 extending along the front-to-back direction Y is further fixed between the lower ends of the two limiting rods 220, and a connecting seat 231 is fixed in the middle of the connecting rod 230. In this way, the connecting rod 230 and the connecting seat 231 are both located in the base space 100a, the structure of the bearing assembly 200 is stable, and the two sets of limiting rods 220 and the limiting holes 131 constitute a limiting mechanism between the support assembly 100 and the bearing assembly 200, which can guide and limit the up and down sliding of the bearing assembly 200, thereby ensuring that the bearing assembly 200 can only slide in the vertical direction and will not shake forward and backward or left and right, so that the child in the surrounding frame 210 can experience up and down swinging. In other embodiments, the limiting mechanism can also be in other forms such as sliders, slide grooves, slide rails, etc., to further improve the stability of the bearing assembly 200 when sliding up and down.

[0047] See also Figures 1 to 5As shown, in this embodiment, in order to realize the periodic swing of the bearing assembly 200 along the up-down direction Z, the children's product further includes a cam 3, the rotatable cam 3 is arranged between the support assembly 100 and the bearing assembly 200, and the cam 3 is used to make the bearing assembly 200 periodically move away from and / or approach the support assembly 100. Specifically, the cam 3 is arranged on the support assembly 100, and the bearing assembly 200 cooperates with the cam 3. Figure 6 and Figure 7 As shown, the cam 3 is driven to rotate by the driving assembly 4, and the cam 3 is fixedly arranged on the rotating shaft 41 of the driving assembly 4. Here, the driving assembly 4 adopts a reduction motor assembly, which can control the cam 3 to rotate around the rotating axis 6001 at a suitable speed. The rotating axis 6001 extends along the left-right direction X and passes through the rotating shaft 41. The driving assembly 4 is fixedly arranged on the supporting assembly 100, specifically fixedly arranged on the base frame 110, so that the driving assembly 4 and the cam 3 are integrally located in the base space 100a. When the outer cover of the supporting assembly 100 is provided with a shell (not shown in the figure), the structure in the base space 100a can be hidden, and the appearance of the children's product is more concise. In addition, the shell can be provided with switches, buttons, etc. for controlling the start and stop and the speed of the driving assembly 4, so that the children's product can realize electric drive swing, which is more convenient and labor-saving to use.

[0048] See also Figure 2 and Figure 5 As shown, the circumference of the cam 3 forms a support portion 31 for supporting the bearing assembly 200, and the lower end of the bearing assembly 200 is provided with a cam mating portion, and the cam mating portion abuts against the support portion 31. In this embodiment, the cam mating portion is a roller 5 rotatably connected to the bearing assembly 200 around a first axis 6002, and the roller 5 and the support portion 31 can be rolled against each other. The roller 5 is specifically rotatably connected to the connecting seat 231, and the first axis 6002 also extends along the left-right direction X. The first axis 6002 is parallel to the rotation axis 6001 of the cam 3 or is located in the same vertical plane (that is, the first axis 6002 is parallel to the rotation axis 6001 of the cam 3 but is located in different vertical planes, or the first axis 6002 is parallel to the rotation axis 6001 of the cam 3 but is located in the same plane). See. Figure 2As shown, in this embodiment, the first axis 6002 is parallel to the rotation axis 6001 and both are located in the first vertical plane 6003, and the center of gravity of the bearing assembly 200 is also located in the first vertical plane 6003, and the first vertical plane 6003 intersects with the entity of the roller 5 as the cam matching part. Therefore, no matter how the cam 3 rotates around the rotation axis 6001, the center of gravity of the bearing assembly 200 can always fall on the rotating shaft 41 at the corresponding position of the rotation axis 6001. In this embodiment, the weight of the bearing assembly 200 and the child at the corresponding position is only transmitted to the cam 3 through the roller 5 for support, and then stably transmitted to the bottom frame 110, with high torque transmission efficiency, and the cam 3 can play a more stable and reliable supporting role for the bearing assembly 200.

[0049] See also Figures 6 to 8 As shown, in this embodiment, the cam 3 is in the shape of a flat column, and the support portion 31 is the outer peripheral wall of the cam 3. The support portion 31 is irregular in shape, but it has no obvious edges or corners or local protrusions or grooves, etc. Instead, it is a smooth and flat arc surface as a whole, and the arc surface is parallel to the rotation axis 6001; when the cam 3 rotates, the roller 5 rolls along the outer peripheral wall of the cam 3. Along the circumference of the cam 3, the support portion 31 includes a first support portion 311, a second support portion 312, and a transition section 313 arranged between the first support portion 311 and the second support portion 312. The first support portion 311 and the second support portion 312 are arranged on different sides of the rotation axis 6001, so as to Figure 8 The transition sections 313 are arranged at the upper and lower sides from the perspective shown, and have two groups arranged at the left and right sides of the rotation axis 6001. In fact, there is no clear boundary between the first support portion 311, the second support portion 312 and the two groups of transition sections 313, and there is a smooth transition between the adjacent two. Along the radial direction of the cam 3, the distance between the first support portion 311 and the rotation axis 6001 is D1, the distance between the second support portion 312 and the rotation axis 6001 is D2, and the distance between any position on the transition section 313 and the rotation axis 6001 is D3, wherein the specific value of D3 varies with different positions on the transition section 313, but in the present embodiment, D1≤D3≤D2 is always satisfied, i.e., the first support portion 311 is the portion of the support portion 31 closest to the rotation axis 6001, the second support portion 312 is the portion of the support portion 31 farthest from the rotation axis 6001, and the transition section 313 smoothly transitions between the first support portion 311 and the second support portion 312.

[0050] In other embodiments, the specific shape of the support portion 31 may not be limited to the form shown in this embodiment. The support portion 31 only needs to have a first support portion 311 closest to the rotation axis 6001, a second support portion 312 farthest from the rotation axis 6001, and a transition section 313 between the two to achieve the lifting and lowering driving function to be achieved by the present invention. The support portion 31 can adopt various regular or irregular geometric shapes, and the lifting and lowering trajectory curve of the bearing assembly 200 is defined by designing the shape of the support portion 31, and the design method is more flexible.

[0051] The working principle of the children's product in this embodiment is described in detail below:

[0052] See also Figures 9 to 12 As shown, in this embodiment, after the switch is turned on to connect the circuit, the driving component 4 drives the cam 3 to rotate in one direction at a constant speed around the rotation axis 6001, which is counterclockwise rotation as shown in the figure. Fig. 9 In the first working state, the children's product is in the first working state, the cam matching part, namely the roller 5, abuts against the first supporting part 311, the distance between the bearing assembly 200 and the supporting assembly 100 is the shortest, and the surrounding frame 210 swings to the lowest position.

[0053] When cam 3 continues to rotate to Fig.10 In the position shown, the children's product switches from the first working state to the second working state, and the roller 5 moves along a set of transition sections 313 and abuts against the transition sections 313, driving the bearing assembly 200 to gradually move vertically upward.

[0054] When cam 3 continues to rotate to Fig.11 In the position shown, the children's product is in the second working state, the roller 5 abuts against the second support portion 312, the distance between the bearing assembly 200 and the supporting assembly 100 is the farthest, and the surrounding frame 210 swings to the highest position.

[0055] When cam 3 continues to rotate to Fig.12 When the cam 3 continues to rotate, it will return to the first working state. Fig. 9 In the position shown, the support assembly 200 swings to the lowest point, thereby continuously cycling the above process.

[0056] It can be seen from the above that for the children's products provided in this embodiment, the driving component 4 only needs to drive the cam 3 to rotate in one direction at a uniform speed to achieve the periodic and smooth reciprocating up and down swinging of the supporting component 200, and the roller 5 of the cam matching part can always cooperate with and abut against the cam 3. The support of the cam 3 to the supporting component 200 is stable and reliable, the speed changes slowly, and the children experience comfort.

[0057] In other embodiments, different control programs may be set for the driving assembly 4 so that the rotation speed can be adjusted or variable speed rotation can be achieved, so that children can obtain a richer swinging experience.

[0058] Example 2

[0059] See also Fig.13 and Fig.14 As shown, this embodiment provides a child product, the overall structure of which is substantially the same as that of the embodiment 1, so not all of them are shown. The main difference between the child product in this embodiment and the embodiment 1 is that the specific structure of the cam 3 is different.

[0060] In this embodiment, the support portion 31 is provided with a support groove 32 along the circumference of the cam 3, and the support portion 31 is arranged on the inner side wall of the support groove 32. The support portion 31 also has a first support portion 311, a second support portion 312 and a transition section 313 similar to those in Example 1, which will not be described in detail here. When the roller 5, which is connected to the bearing assembly around the first axis 6002 as the cam matching portion, is matched and abutted against the support portion 31, part of the roller 5 is inserted in the support groove 32 and can roll along the support groove 32 to realize the up and down swing of the bearing assembly 200. The support groove 32 plays a role of limiting and guiding the rolling of the roller 5, and the roller 5 is not easy to slip off along the axial direction, and the cooperation between the two is more reliable.

[0061] Example 3

[0062] See also Fig.15 As shown, this embodiment provides a child product, the overall structure of which is substantially the same as that of the embodiment 1, so not all of them are shown. The main difference between the child product in this embodiment and the embodiment 1 is that the specific structure of the cam 3 is different.

[0063] In this embodiment, the cam 3 and the cam matching part use two sets of gears that can mesh with each other. Among them, the cam 3 has multiple sets of supporting teeth 33 on the circumference, and the supporting part 31 is arranged on the outer wall of the multiple sets of supporting teeth 33; the cam matching part is a matching gear 51 that is rotatably connected to the bearing assembly around the first axis 6002, and the matching gear 51 can be relatively rotatably arranged on the bearing assembly 200 around the first axis 6002. The matching gear 51 has multiple sets of rolling teeth 511 on the circumference, so that the multiple sets of supporting teeth 33 and the rolling teeth 511 mesh with each other, so as to realize the matching rolling of the cam matching part and the cam 3.

[0064] In this embodiment, similarly, the rotation axis 6001 of the cam 3 deviates from its geometric center line, so along the circumference of the cam 3, the support portion 31 can also be divided into a first support portion 311, a second support portion 312 and a transition section 313, thereby realizing the up and down swinging of the supporting component 200.

[0065] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with this technology to understand the contents of the present invention and implement them accordingly. They cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A children's product, comprising a supporting component and a carrying component for carrying a child, wherein the carrying component is movably connected to the supporting component, characterized in that: The child product further comprises a cam, wherein the rotatable cam is arranged between the support assembly and the bearing assembly, and the cam is used to make the bearing assembly periodically move away from and / or approach the support assembly, and the child product further comprises a driving assembly for driving the cam to rotate, wherein the driving assembly is fixedly arranged on the support assembly, a supporting portion for supporting the bearing assembly is arranged in the circumference of the cam, a cam matching portion is arranged at the lower end of the bearing assembly, and the cam matching portion abuts against the supporting portion, the center of gravity of the bearing assembly and the rotation axis of the cam are located in a first vertical plane, the first vertical plane intersects with the cam matching portion, and the first vertical plane intersects with the rotation axis at a position corresponding to the rotation axis; The supporting portion is the outer peripheral wall of the cam, the outer peripheral wall is parallel to the rotation axis of the cam, the cam matching portion is a roller rotatably connected to the bearing assembly around a first axis, the first axis is parallel to the rotation axis of the cam or is located in the same vertical plane, the roller is rollably in contact with the outer peripheral wall; when the cam rotates, the roller rolls along the outer peripheral wall; A support groove is opened along the circumference of the cam, and the support part is arranged on the inner side wall of the support groove; the cam matching part is a roller rotatably connected to the bearing component around a first axis, and part of the roller is inserted in the support groove.

2. The children's product according to claim 1, characterized in that: The bearing assembly is slidably connected to the supporting assembly along a vertical direction, the cam is arranged on the supporting assembly, and the bearing assembly cooperates with the cam.

3. The children's product according to claim 1, characterized in that: The support portion includes a first support portion and a second support portion. When the cam matching portion abuts against the first support portion, the distance between the bearing component and the support component is the shortest; when the cam matching portion abuts against the second support portion, the distance between the bearing component and the support component is the farthest.

4. The children's product according to claim 3, characterized in that: The support portion further includes a transition section disposed between the first support portion and the second support portion; when the cam engaging portion switches between the first support portion and the second support portion, the cam engaging portion moves along the transition section and abuts against the transition section.

5. The children's product according to claim 4, characterized in that: Along the radial direction of the cam, the distance between the first support portion and the rotation axis of the cam is D1, the distance between the second support portion and the rotation axis of the cam is D2, and the distance between any position on the transition section and the rotation axis of the cam is D3, wherein D1≤D3≤D2.

6. The children's product according to claim 1, characterized in that: The cam matching portion is a roller rotatably connected to the bearing assembly around a first axis, the first axis is parallel to the rotation axis of the cam or is located in the same vertical plane, and the roller is rollingly in contact with the support portion.

7. The children's product according to claim 1, characterized in that: The bearing assembly includes a limiting rod extending in the up-down direction; the supporting assembly includes a supporting seat with a limiting hole provided therein; the limiting rod can be inserted in the limiting hole so as to be relatively slidable in the vertical direction.

8. The children's product according to claim 7, characterized in that: The bearing assembly also includes a connecting rod, which is arranged between the lower ends of the two limit rods, and a connecting seat is fixedly provided in the middle of the connecting rod; the cam matching part is a roller rotatably connected to the connecting seat around a first axis, the first axis is parallel to the rotation axis of the cam or is located in the same vertical plane, and the roller and the support part can be rolled against each other.

9. The children's product according to claim 1, characterized in that: The cam has multiple groups of supporting teeth in the circumference, and the supporting part is arranged on the outer wall of the supporting teeth; the cam matching part is a matching gear rotatably connected to the bearing component around the first axis, and the matching gear is provided with multiple groups of rolling teeth, and the rolling teeth are meshed with the supporting teeth.

10. The children's product according to any one of claims 1 to 9, characterized in that: The children's product is a chair for children to sit on.

11. The children's product according to any one of claims 1 to 9, characterized in that: The children's product is a bed for children to lie on.

Images