A child's article of manufacture

Abstract

The child product comprises a bottom support, a carrier for carrying a child, a rocking mechanism for connecting the carrier and the bottom support, and a driving mechanism for providing a real-time change rocking torque to the rocking mechanism. The rocking mechanism is rotationally connected to the bottom support. The child product further comprises an adjusting mechanism for additionally changing the size of the rocking torque, so that the balance position of the rocking mechanism can be kept at a set position without being affected by the weight of the child. When the child is riding, a position detector first detects the position of the rocking mechanism. If the position of the rocking mechanism is at the set position, the adjusting mechanism does not act, and the driving mechanism acts to start rocking. If the position of the rocking mechanism is not at the set position, the driving mechanism does not act, and the adjusting mechanism acts to change the rocking torque until the rocking mechanism changes to the set position. The adjusting mechanism stops running, and the driving mechanism acts again to start rocking, thereby achieving the technical effect of automatically adjusting the balance position of the rocking mechanism according to the weight of the child.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of children's products, in particular to a children's product capable of automatically adjusting the balance position of a rocking mechanism. BACKGROUND

[0002] Many children's products have a rocking function, such as rocking chairs, rocking horses, and cradles. When children ride on them, the rocking mechanism continuously reciprocates to soothe the children's emotions and promote their sleep. For example, Chinese patents CN217338010U and CN217338009U disclose such children's products. However, the balance position of the rocking mechanism of these children's products is mostly not adjustable. When children of different weights ride on them, the balance position of the rocking mechanism will change due to the influence of the children's weight, making it difficult to keep children of different weights in the most comfortable and safest riding posture. SUMMARY

[0003] The present application aims to overcome the shortcomings of the prior art and provide a children's product capable of automatically adjusting the balance position of a rocking mechanism according to the weight of a child.

[0004] To achieve the above-mentioned purpose, the present application provides a children's product, which comprises:

[0005] a bottom support;

[0006] a carrier for carrying a child;

[0007] a rocking mechanism for connecting the bottom support and the carrier, the rocking mechanism being rotationally connected to the bottom support;

[0008] a driving mechanism for providing a rocking torque to the rocking mechanism, when the rocking torque and a resisting torque exerted on the rocking mechanism by the weight of a child in the carrier are counteracted, the rocking mechanism is in a balance position, when the rocking torque and the resisting torque cannot be counteracted, the rocking mechanism is in a non-balance position deviating from the balance position, the driving mechanism provides a real-time varying rocking torque, causing the rocking mechanism to constantly change between the balance position and the non-balance position, thereby generating a rocking motion;

[0009] The child product further comprises an adjusting mechanism for additionally changing the size of the rocking torque, so that the balance position of the rocking mechanism can be kept at a set position regardless of the weight of the child; when the child is on the child product, if the balance position of the rocking mechanism is at the set position, the adjusting mechanism does not act, and the driving mechanism acts to start the rocking; if the balance position of the rocking mechanism is not at the set position, the driving mechanism does not act, and the adjusting mechanism acts to change the rocking torque until the rocking mechanism changes to the set position, the adjusting mechanism stops acting, and the driving mechanism acts again to start the rocking.

[0010] Preferably, the adjusting mechanism comprises a detecting unit for detecting whether the rocking mechanism is at the set position, an adjusting unit for changing the size of the rocking torque, and a control board electrically connected with the detecting unit and the adjusting unit, and the control board controls the action of the adjusting unit according to the detection value of the detecting unit.

[0011] Further preferably, the detecting unit determines whether the rocking mechanism is at the set position by detecting the position deviation and / or the angle deviation, and the detecting unit comprises an angle sensor, a Hall magnet, a micro switch, an encoder, a grating, and a travel switch.

[0012] Further preferably, the driving mechanism comprises a transmission wheel rotatably arranged on the bottom support and a retractable traction strip, the traction strip is wound around the transmission wheel, one end of the traction strip is connected with the bottom support, and the other end of the traction strip is connected with the rocking mechanism after changing direction.

[0013] Further preferably, the adjusting unit comprises a lead screw rotatably connected with the bottom support and / or the rocking mechanism, a lead screw nut sleeved on the lead screw and connected with the end of the traction strip, and an adjusting motor for driving the lead screw to rotate, so that the lead screw nut moves along the lead screw when the adjusting motor acts, the position of the end of the traction strip changes, and the rocking torque changes.

[0014] Further preferably, the child product further comprises a driving motor for driving the transmission wheel to rotate, the driving motor belongs to the driving mechanism to compensate for the energy loss of the traction strip, and / or the driving motor belongs to the adjusting mechanism, and the driving motor changes the retractable state of the traction strip to change the rocking torque.

[0015] Further preferably, the traction strip is formed by connecting a traction rope and an elastic member in series.

[0016] Further preferably, the bottom support comprises a bottom support and a vertical support vertically extending upward along the bottom support, a groove extending along the extending direction of the bottom support is arranged on the bottom support, and the traction strip around the transmission wheel is accommodated in the groove.

[0017] Further preferably, the carrier comprises a body for carrying the child and a support rod vertically extending downward below the body, and the rocking mechanism is any one of a four-bar linkage mechanism, a triangular slider mechanism, a lever mechanism and a double slider mechanism.

[0018] Further preferably, when the rocking mechanism is a four-bar linkage mechanism, the rocking mechanism comprises an upper connecting rod and a lower connecting rod, a middle portion of the upper connecting rod is rotationally connected to an upper end portion of the vertical support, one end portion of the upper connecting rod is rotationally connected to a middle portion of the support rod, and the other end portion of the upper connecting rod is suspended, one end portion of the lower connecting rod is rotationally connected to a lower end portion of the support rod, and the other end portion of the lower connecting rod is rotationally connected to a middle portion of the vertical support.

[0019] Thanks to the use of the above technical solutions, the present application has the following advantages compared with the prior art:

[0020] The child product provided by the present application comprises a bottom support, a carrier for carrying the child, a rocking mechanism for connecting the carrier and the bottom support, and a driving mechanism for providing a real-time changing rocking torque to the rocking mechanism. The rocking mechanism is rotationally connected to the bottom support. By additionally providing an adjusting mechanism for changing the size of the rocking torque, the balance position of the rocking mechanism can be kept at a set position without being affected by the weight of the child. When the child is riding, the position detector first detects the position of the rocking mechanism. If the position of the rocking mechanism is at the set position, the adjusting mechanism does not act, and the driving mechanism acts to start the rocking. If the position of the rocking mechanism is not at the set position, the driving mechanism does not act, and the adjusting mechanism acts to change the rocking torque until the rocking mechanism changes to the set position, the adjusting mechanism stops running, and the driving mechanism acts again to start the rocking, thereby achieving the technical effect of automatically adjusting the balance position of the rocking mechanism according to the weight of the child. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 The logic control diagram of the present application.

[0022] Figure 2 The three-dimensional schematic diagram of embodiment one of the present application.

[0023] Figure 3 The front view schematic diagram of Figure 2

[0024] Figure 4 The longitudinal sectional view schematic diagram of Figure 3

[0025] ​​Figure 5 、 Figure 6 、 Figure 7 is the front view of the embodiment two of the present application, wherein, Figure 5 is the state of the rocking mechanism in the set balance position, Figure 6 is the state of the rocking mechanism in the low position, Figure 7 is the state of the rocking mechanism in the high position.

[0026] Figure 8 is the front view of the embodiment three of the present application.

[0027] Figure 9 is the front view of the embodiment four of the present application.

[0028] Figure 10 is the front view of the embodiment five of the present application.

[0029] Wherein: 10. bottom support; 11. bottom support; 111. groove; 12. vertical support; 20. carrier; 21. body; 22. support rod; 221. convex column; 30. rocking mechanism; 31. upper connecting rod; 311. waist-shaped hole; 32. lower connecting rod; 40. driving mechanism; 41. transmission wheel; 42. traction strip; 421. traction rope; 422. elastic member; 50. adjusting mechanism; 51. detection unit; 52. adjusting unit; 521. lead screw; 522. nut; 523. adjusting motor; 53. control board; 60. driving motor. DETAILED DESCRIPTION

[0030] The preferred embodiments of the present application are described in detail below with reference to the accompanying drawings, so that the advantages and features of the present application can be more easily understood by those skilled in the art.

[0031] Embodiment one

[0032] As Figures 2 to 4As shown, the child product provided by the present application comprises a bottom support 10, a carrier 20, a rocking mechanism 30, a driving mechanism 40, an adjusting mechanism 50 and a driving motor 60. The bottom support 10 comprises a bottom support 11 extending in the front-rear direction and a vertical support 12 vertically extending upwards from the bottom support 11. The carrier 20 comprises a body 21 for carrying a child and a support rod 22 vertically extending downwards from the body 21. The rocking mechanism 30 is used to connect the bottom support 10 and the carrier 20. The rocking mechanism 30 is rotatably connected with the bottom support 10 and rotatably connected with the support rod 22, so that the rocking mechanism 30 forms a four-bar linkage. Specifically, the rocking mechanism 30 comprises an upper connecting rod 31 extending in the front-rear direction and a lower connecting rod 32 parallel to the upper connecting rod 31. The front end of the upper connecting rod 31 is rotatably connected with the middle part of the support rod 22, the middle part of the upper connecting rod 31 is rotatably connected with the upper end of the vertical support 12, and the rear end of the upper connecting rod 31 is suspended. The front end of the lower connecting rod 32 is rotatably connected with the lower end of the support rod 22, and the rear end of the lower connecting rod 32 is rotatably connected with the middle part of the vertical support 12, so that the rocking mechanism 30 forms a four-bar linkage. The driving mechanism 40 is used to provide a rocking torque to the rocking mechanism 30. Specifically, the driving mechanism 40 comprises a transmission wheel 41 rotatably arranged on the bottom support 11 behind the vertical support 12 and a retractable traction strip 42 wound around the transmission wheel 41. The lower end of the traction strip 42 extends horizontally forward after passing around the transmission wheel 41 and is connected to the bottom support 11. The upper end of the traction strip 42 changes direction and extends upwards after passing around the transmission wheel 41 and is connected to the rear end of the upper connecting rod 31, so as to provide a rocking torque to the rocking mechanism 30. When the rocking torque and the resisting torque exerted on the rocking mechanism 30 by the weight of the child are counteracted, the rocking mechanism 30 is in a balanced position. When the rocking torque and the resisting torque cannot be counteracted, the rocking mechanism 30 is in an unbalanced position deviating from the balanced position. The rocking torque provided by the driving mechanism 40 changes in real time, so that the rocking mechanism 30 constantly changes between the balanced position and the unbalanced position, generating rocking. The adjusting mechanism 50 is used to additionally change the size of the rocking torque, so that the balanced position of the rocking mechanism 30 can be unaffected by the weight of the child and maintained at a set position. When the child is riding, if the balanced position of the rocking mechanism 30 is at the set position, the adjusting mechanism 50 does not act, and the driving mechanism 40 acts to start rocking. If the balanced position of the rocking mechanism 30 is not at the set position, the driving mechanism 40 does not act, and the adjusting mechanism 50 acts to change the rocking torque until the rocking mechanism 30 changes to the set position, the adjusting mechanism 50 stops acting, and the driving mechanism 40 acts again to start rocking, achieving the technical effect of automatically adjusting the balanced position of the rocking mechanism 30 according to the weight of the child.

[0033] In the embodiment, the adjusting mechanism 50 comprises a detecting unit 51, an adjusting unit 52 and a control board 53, the detecting unit 51 is used to detect whether the rocking mechanism 30 is in the set position, the adjusting unit 52 is used to change the size of the rocking moment, the control board 53 is electrically connected with the detecting unit 51 and the adjusting unit 52, the control board 53 controls the action of the adjusting unit 52 according to the detection value of the detecting unit 51, and the control board 53 is also used to control the action of the driving mechanism 40, when the child is riding, the detecting unit 51 first detects whether the balance position of the rocking mechanism 30 is in the set position; if yes, the control board 53 closes the adjusting unit 52 and starts the driving mechanism 40 to make the rocking mechanism 30 start rocking, if not, the control board 53 closes the driving mechanism 40 and starts the adjusting unit 52 to make the balance position of the rocking mechanism 30 start adjusting, after the adjustment, the detecting unit 51 detects again until the balance position of the rocking mechanism 30 changes to the set position and the rocking starts.

[0034] In the embodiment, the detecting unit 51 judges whether the rocking mechanism 30 is in the set position by detecting the angle deviation, specifically, the detecting unit 51 is an angle sensor arranged at the rotating connection between the lower connecting rod 32 and the vertical support 12, and the detecting unit 51 judges whether the rocking mechanism 30 is in the set position by detecting the rotating angle of the lower connecting rod 32 relative to the vertical support 12.

[0035] In the embodiment, the adjusting unit 52 comprises a lead screw 521, a nut 522 and an adjusting motor 523, the lead screw 521 is rotatably connected at the bottom of the upper connecting rod 31 and arranged in parallel with the upper connecting rod 31, the nut 522 is sleeved on the lead screw 521 and connected with the upper end of the traction strip 42, the adjusting motor 523 is arranged at the bottom of the upper connecting rod 31 and used to drive the lead screw 521 to rotate, the adjusting motor 523 is electrically connected with the control board 53 and acts according to the instruction of the control board 53, when the adjusting motor 523 acts, the nut 522 can be driven to move along the lead screw 521, so that the position of the upper end of the traction strip 42 changes, thereby changing the distance between the upper end of the traction strip 42 and the rotating shaft between the upper connecting rod 31 and the vertical support 12 to change the force arm and the rocking moment, when the adjusting motor 523 acts, a sensor needs to be arranged at the bottom of the upper connecting rod 31 to avoid that the nut 522 exceeds the limit or cannot return to the original position, when the nut 522 is driven by the adjusting motor 523 to move to the limit position and the rocking mechanism 30 still does not change to the set position, the reverse rotation of the adjusting motor 523 can be used to find the reverse position, when the nut 522 continuously moves to the limit position twice and the rocking mechanism still does not change to the set position, the control board 53 sends an alarm to prompt that the weight of the child exceeds the limit.

[0036] In this embodiment, the children's product also includes a drive motor 60 for driving the transmission wheel 41 to rotate. The drive motor 60 is also a component of the drive mechanism 40. By driving the transmission wheel 41 to rotate, it replenishes the elastic potential energy of the traction bar 42 and offsets the loss generated during the conversion of the elastic potential energy and the gravitational potential energy at the carrier during the shaking process. (Specifically, when there is no manual shaking and no drive motor 60, due to the loss during the conversion of the elastic potential energy of the traction bar 42 and the gravitational potential energy at the carrier, the extension and retraction amplitude of the traction bar 41 gradually decreases during the shaking process of the children's product. When the extension and retraction amplitude of the traction bar 41 drops to 0, the children's product is stationary. By setting the drive motor 60, the transmission wheel 41 can be rotated by the drive motor 60, which can lengthen the traction bar 42 located on one side of the transmission wheel 41 and shorten the traction bar 42 located on the other side of the transmission wheel 41, thereby increasing the extension and retraction amplitude of the traction bar 41.) This replenishes the elastic potential energy of the traction bar 42. As a component of the adjustment mechanism 50, it drives the transmission wheel 41 to rotate, changing the extension / retraction state of the traction bar 42. (Specifically, within one swaying cycle, the transmission wheel 41 rotates forward for half a cycle and reverses for half a cycle, thus pulling the traction bar 42 between extension and retraction. Regardless of whether the transmission wheel 41 rotates forward or reverse, its speed change is 0 → maximum → 0. The time taken for this speed change is the time it takes for the transmission wheel 41 to pull the traction bar 42 to extend or retract. When the drive motor 60 drives the transmission wheel 41 to rotate, it can change the maximum value of the speed change of the transmission wheel 41 and the acceleration during the speed change, thereby changing the time taken for the speed change of the transmission wheel 41 and changing the extension / retraction state of the traction bar 42.) This changes the tension applied to the upper connecting rod 31, thereby changing the swaying torque received by the swaying mechanism 30 and adjusting the balance position of the swaying mechanism 30.

[0037] In this embodiment, the traction bar 42 is composed of a traction rope 421 and an elastic element 422 connected in series. The traction rope 421 is a non-elastic rope, and the elastic element 422 is a spring. The lower end of the traction rope 421 is connected to the base support 11 through the elastic element 422. In order to avoid the elastic element 422 being exposed and to improve the safety of use, the base support 11 is further provided with a groove 111 extending in the front-back direction. The lower end of the traction rope 421 and the elastic element 422 are both accommodated in the groove 111.

[0038] Example 2

[0039] like Figures 5 to 7 As shown, Embodiment 2 is basically the same as Embodiment 1, except that in Embodiment 2, the detection unit 51 determines whether the shaking mechanism 30 is in the set position by detecting the position deviation. Specifically, the detection unit 51 is a micro switch. The detection unit 51 is set on the bottom support 11 and near the lower end of the support rod 22. The detection unit 51 determines whether the shaking mechanism 30 is in the set position by detecting the slight displacement of the lower end of the support rod 22.

[0040] Example 3

[0041] like Figure 8 As shown, the main difference between Embodiment 3 and Embodiments 1 and 2 lies in the different swaying mechanism 30. Specifically, in Embodiment 3, although the swaying mechanism 30 also includes an upper connecting rod 31 and a lower connecting rod 32, the lower connecting rod 32 is not parallel to the upper connecting rod 31, but extends in the vertical direction and is positioned in front of the vertical support 12. The lower end of the lower connecting rod 32 is rotatably connected to the bottom support 11, and the upper end of the lower connecting rod 32 is provided with a groove for the support rod 22 to pass through. The lower end of the support rod 22 is slidably inserted into the groove, thereby forming a triangular slider mechanism with the swaying mechanism 30. It should be noted that... Figure 8 The detection unit is not shown; however, it can be configured with reference to Embodiment 1 or Embodiment 2.

[0042] Example 4

[0043] like Figure 9 As shown, the main difference between Embodiment 4 and Embodiments 1 and 2 lies in the shaking mechanism 30. Specifically, in Embodiment 4, the shaking mechanism 30 only includes the upper connecting rod 31, and the front end of the upper connecting rod 31 is fixedly connected to the lower end of the support rod 22, thereby making the upper connecting rod 31 a lever mechanism capable of prying the carrier 20. It should be noted that... Figure 9 The detection unit is not shown; however, it can be configured with reference to Embodiment 1 or Embodiment 2.

[0044] Example 5

[0045] like Figure 10As shown, the main difference between the fifth embodiment and the first embodiment and the second embodiment lies in the shaking mechanism 30. Specifically, in the fifth embodiment, the shaking mechanism 30 also includes the upper connecting rod 31 and the lower connecting rod 32, but the lower connecting rod 32 is not parallel to the upper connecting rod 31, but extends in the up-down direction and is arranged in front of the vertical support 12. The lower end of the lower connecting rod 32 is fixedly connected with the bottom support 11, and the upper end of the lower connecting rod 32 is provided with a sliding groove for penetrating the support rod 22, and the lower end of the support rod 22 is slidably penetrated in the sliding groove. The front end of the upper connecting rod 31 is rotatably and slidably connected with the middle part of the support rod 22. Specifically, the front end of the upper connecting rod 31 is provided with a waist-shaped hole 311 extending in the axial direction of the upper connecting rod 31, and the outer wall of the middle part of the support rod 22 is provided with a convex column 221 rotatably and slidably inserted in the waist-shaped hole 311. When the upper connecting rod 31 rotates relative to the vertical support 12, the convex column 221 not only rotates relative to the waist-shaped hole 311, but also slides relative to the waist-shaped hole 311, and at the same time, the lower end of the support rod 22 slides relative to the sliding groove on the lower connecting rod 32, so that the shaking mechanism 30 forms a double sliding block mechanism. It should be noted that, Figure 10 The detection unit is not shown, and the detection unit can be set according to the first embodiment or the second embodiment.

[0046] In the above embodiments, the adjusting unit 52 is not limited to the screw nut mechanism, but can also be a sliding rod sliding block or other linear adjustment mechanism.

[0047] The above embodiments are only for illustrating the technical concept and characteristics of the present application, and the purpose is to enable those skilled in the art to understand the content of the present application and to implement it, and cannot limit the protection scope of the present application. Any equivalent changes or modifications made according to the spirit and essence of the present application shall be covered within the protection scope of the present application.

Claims

1. A children's product, comprising: Base support; Vehicles used to carry children; A swaying mechanism for connecting the base support and the vehicle, the swaying mechanism being rotatably connected to the base support; The drive mechanism provides swaying torque to the swaying mechanism. When the swaying torque cancels out the resisting torque exerted on the swaying mechanism by the weight of the child in the vehicle, the swaying mechanism is in a balanced position. When the swaying torque and the resisting torque cannot cancel each other out, the swaying mechanism is in an unbalanced position deviating from the balanced position. The swaying torque provided by the drive mechanism changes in real time, causing the swaying mechanism to continuously switch between the balanced and unbalanced positions, thus generating swaying. Its features are: The child product also includes an adjustment mechanism, which is used to further change the magnitude of the rocking torque so that the balance position of the rocking mechanism is not affected by the weight of the child and remains in a set position. When the child is riding in the product, if the balance position of the rocking mechanism is in the set position, the adjustment mechanism does not operate, and the drive mechanism operates to start rocking. If the balance position of the rocking mechanism is not in the set position, the drive mechanism does not operate, and the adjustment mechanism operates to change the rocking torque until the rocking mechanism changes to the set position. Then, the adjustment mechanism stops operating, and the drive mechanism operates again to start rocking.

2. The children's product according to claim 1, characterized in that: The adjustment mechanism includes a detection unit, an adjustment unit, and a control board. The detection unit is used to detect whether the shaking mechanism is in a set position. The adjustment unit is used to change the magnitude of the shaking torque. The control board is electrically connected to the detection unit and the adjustment unit. The control board controls the action of the adjustment unit according to the detection value of the detection unit.

3. The children's product according to claim 2, characterized in that: The detection unit determines whether the shaking mechanism is in a set position by detecting position deviation and / or angle deviation. The detection unit includes an angle sensor, a Hall magnet, a micro switch, an encoder, a grating, and a limit switch.

4. The children's product according to claim 2, characterized in that: The drive mechanism includes a drive wheel and a retractable traction bar. The drive wheel is rotatably mounted on the base support. The traction bar is wound around the drive wheel. One end of the traction bar is connected to the base support, and the other end is connected to the swaying mechanism after changing direction.

5. The children's product according to claim 4, characterized in that: The adjustment unit includes a lead screw, a lead screw nut, and an adjustment motor. The lead screw is rotatably connected to the base bracket and / or the swaying mechanism. The lead screw nut is sleeved on the lead screw and connected to the end of the traction bar. The adjustment motor is used to drive the lead screw to rotate. When the adjustment motor is activated, it can drive the lead screw nut to move along the lead screw, thereby changing the position of the end of the traction bar and changing the swaying torque.

6. The children's product according to claim 4, characterized in that: The children's product also includes a drive motor for driving the transmission wheel to rotate. The drive motor is part of the drive mechanism to compensate for the energy loss of the traction bar, and / or, the drive motor is part of the adjustment mechanism, and the drive motor changes the swaying torque by changing the extension and retraction state of the traction bar.

7. The children's product according to claim 4, characterized in that: The traction bar is composed of a traction rope and an elastic element connected in series.

8. The children's product according to claim 4, characterized in that: The base support includes a base support and a vertical support extending upward along the base support. The base support has a groove extending along the extension direction of the base support, and the traction bar that passes around the drive wheel is accommodated in the groove.

9. The children's product according to claim 8, characterized in that: The vehicle includes a body for carrying a child and a support rod located below the body and extending vertically downwards. The swaying mechanism is any one of a four-bar linkage, a triangular slider mechanism, a lever mechanism, or a double slider mechanism.

10. The children's product according to claim 9, characterized in that: When the swaying mechanism is a four-bar linkage, the swaying mechanism includes an upper connecting rod and a lower connecting rod. The middle part of the upper connecting rod is rotatably connected to the upper end of the vertical support. One end of the upper connecting rod is rotatably connected to the middle part of the support rod, and the other end is suspended. One end of the lower connecting rod is rotatably connected to the lower end of the support rod, and the other end of the lower connecting rod is rotatably connected to the middle part of the vertical support.

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