Rotating joint of children's product and children's product

Abstract

The present invention relates to a rotary joint for children's products, which is used to connect a first rod member and a second rod member of the children's product, and has a locked state and an unlocked state, comprising: a base, a first rotating member, a second rotating member, and a locking member, which can be slidably arranged on the base along a first direction; the first rotating member and the second rotating member respectively have a locking protrusion, and each locking protrusion has a locking mating surface and an unlocking pressing surface; when the rotary joint is in the locked state, the locking mating surfaces of each locking protrusion respectively contact and cooperate with the locking member to prevent the first rotating member and the second rotating member from rotating relative to the base; when the rotary joint is in the unlocked state, the locking member and the locking mating surfaces of each locking protrusion are disengaged, and the unlocking pressing surface of at least one locking protrusion presses on the locking member. The rotary joint of the present invention is easy to unlock, reduces the risk of pinching the user's fingers, and improves the safety of the children's product.

Description

Technical Field

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

[0002] Children's beds are essential children's products for children's growth. When not in use, they need to be folded for easy storage. Some existing children's beds have rotating joints on the bars, which can be unlocked to fold the bed. However, most existing children's beds have two pivot points on the bars. During the unlocking process, it is easy for one of the two pivot points to be unlocked while the other is still locked, making the unlocking process inconvenient. Furthermore, when the user unlocks the locked pivot point, there is a risk of pinching their fingers, resulting in low safety and a poor user experience. Summary of the Invention

[0003] The purpose of the present invention is to provide an improved rotating joint of a children's product and the children's product, which facilitates the folding process and improves the safety of the children's product.

[0004] In order to achieve the above object, the technical solution adopted by the present invention is:

[0005] A rotary joint for a children's product, used to connect a first rod and a second rod of the children's product, wherein the rotary joint has a locked state and an unlocked state, and comprises:

[0006] base;

[0007] a first rotating member, which is disposed on an inner end portion of the first rod, and the first rotating member is rotatably connected to the base;

[0008] a second rotating member, which is disposed on an inner end portion of the second rod, and the second rotating member is rotatably connected to the base;

[0009] a locking member slidably disposed on the base along a first direction; the first rotating member and the second rotating member respectively have a locking protrusion, each of the locking protrusions respectively having a locking mating surface and an unlocking pressing surface, the locking mating surface forming a first angle with the first direction, the unlocking pressing surface forming a second angle with the first direction, the first angle being greater than or equal to zero and less than the second angle;

[0010] When the rotating joint is in the locked state, the locking mating surfaces of each locking protrusion are in contact and mated with the locking member respectively to prevent the first rotating member and the second rotating member from rotating relative to the base; when the rotating joint is in the unlocked state, the locking member and the locking mating surfaces of each locking protrusion are disengaged, and the unlocking pressing surface of at least one locking protrusion is pressed on the locking member.

[0011] Preferably, the locking mating surface and the first direction are parallel to each other, and the unlocking pressing surface and the first direction are perpendicular to each other.

[0012] Furthermore, the first direction is an up-down direction, the first rotating member and the second rotating member are respectively located on the left and right sides of the locking member, the locking mating surface faces forward or backward, and the unlocking pressing surface faces downward.

[0013] Preferably, the locking member has a left locking portion and a right locking portion located on the left and right sides respectively; the locking member further has a limiting protrusion, which is located between the left locking portion and the right locking portion and protrudes upward.

[0014] Furthermore, the rotary joint further includes an unlocking member for driving the locking member to move downward, and the unlocking member is slidably arranged on the base along the first direction; the rotary joint further includes an elastic member for resetting the locking member.

[0015] Furthermore, the limiting protrusion is provided with a groove extending along the first direction; the upper end of the unlocking member is provided with a button portion, and the lower end of the unlocking member is provided with a connecting portion that can be inserted into the groove.

[0016] Furthermore, the base includes a first fixing plate and a second fixing plate arranged opposite to each other, the first fixing plate is provided with a through hole, the size of the button part is larger than the size of the through hole, the connecting part passes through the through hole, and the first rotating part, the second rotating part and the locking part are arranged between the first fixing plate and the second fixing plate.

[0017] Preferably, the first rod and the base are rotatably connected via a first rotating shaft, the second rod and the base are rotatably connected via a second rotating shaft, the locking member and the base are connected via a connecting shaft, the locking member can be slidably mounted on the connecting shaft along a first direction, and the axial center lines of the first rotating shaft, the second rotating shaft and the connecting shaft extend in the up and down directions respectively.

[0018] A children's product comprises the rotating joint described above.

[0019] Preferably, the children's product is a children's bed, which has an unfolded working position and a folded working position, and comprises:

[0020] an upper frame, the upper frame comprising a plurality of side bar assemblies;

[0021] A plurality of vertical poles, wherein the plurality of side pole assemblies are connected to upper portions of two adjacent vertical poles;

[0022] A bottom frame, the bottom frame including a plurality of lower link assemblies connected to the lower portions of two adjacent uprights;

[0023] At least one of the side rod assemblies includes the first rod and the second rod, and the rotation joint is arranged between the first rod and the second rod; in the locked state, at least one of the first rod and the second rod rests on the base.

[0024] Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art:

[0025] The rotating joint of the children's product of the present invention is such that after the unlocking piece is pressed, any one of the locking protrusions of the first rotating piece and the second rotating piece is disengaged from the locking piece, and the other locking protrusion is also necessarily disengaged from the locking piece, thereby realizing synchronous locking and unlocking of the two rotating points. The unlocking process is convenient, making the folding process of the children's product equipped with the rotating joint convenient, reducing the risk of pinching the user's fingers, and improving the safety of the children's product. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 Schematic diagram of the three-dimensional structure of the rotary joint in the locked state according to an embodiment of the present invention

[0027] Figure 2 Schematic diagram of the exploded structure of the components in the rotary joint according to an embodiment of the present invention;

[0028] Figure 3 Schematic diagram of the three-dimensional structure of the locking member in an embodiment of the present invention;

[0029] Figure 4 is another schematic diagram of the three-dimensional structure of the locking member in an embodiment of the present invention;

[0030] Figure 5 Schematic diagram of the three-dimensional structure of the base in an embodiment of the present invention;

[0031] Figure 6 Schematic diagram of the three-dimensional structure of the locking protrusion in an embodiment of the present invention;

[0032] Figure 7 Another schematic diagram of the three-dimensional structure of the locking protrusion in an embodiment of the present invention;

[0033] Figure 8 is a schematic cross-sectional view of a rotary joint in an embodiment of the present invention, wherein the rotary joint is in a locked state;

[0034] Figure 9 For attachment Figure 8 Schematic cross-sectional view along the AA direction;

[0035] Figure 10 For attachment Figure 8 A schematic cross-sectional view along the BB direction;

[0036] Figure 11 is a schematic cross-sectional view of a revolute joint according to an embodiment of the present invention, wherein the revolute joint is between a locked state and an unlocked state;

[0037] Figure 12 For attachment Figure 11 Schematic cross-sectional view along CC direction;

[0038] Figure 13 is another cross-sectional schematic diagram of a revolute joint according to an embodiment of the present invention, wherein the revolute joint is between a locked state and an unlocked state;

[0039] Figure 14 is a schematic cross-sectional view of a rotary joint according to an embodiment of the present invention, wherein the rotary joint is in an unlocked state;

[0040] Figure 15 is another cross-sectional schematic diagram of a rotary joint in an unlocked state according to an embodiment of the present invention;

[0041] Figure 16 is a schematic diagram of the three-dimensional structure of the rotary joint in the unlocked state according to an embodiment of the present invention;

[0042] Figure 17 Another cross-sectional view of the rotary joint in the unlocked state according to an embodiment of the present invention, wherein the first rod or the second rod touches the base to stop rotating;

[0043] Figure 18 Schematic diagram of the three-dimensional structure of a children's bed in an embodiment of the present invention;

[0044] Among them, 1. rotating joint; 11. base; 111. first fixing plate; 112. second fixing plate; 113. through hole; 114. first rotating shaft; 115. second rotating shaft; 116. connecting shaft; 12. first rotating member; 13. second rotating member; 14. locking member; 141. left locking part; 142. right locking part; 143. limiting protrusion; 1431. groove; 15. locking protrusion; 151. locking mating surface; 152. unlocking pressing surface; 153. base abutment surface; 16. unlocking member; 161. button part; 162. connecting part; 17. elastic member; 2. first rod member; 3. second rod member; 4. upper frame; 41. side rod assembly; 5. vertical pole; 6. bottom frame. DETAILED DESCRIPTION

[0045] The present invention is further described below with reference to the following examples. However, the present invention is not limited to the following examples. The implementation conditions used in the examples may be further adjusted according to the specific requirements of the application. Unspecified implementation conditions are conventional conditions in the industry. The technical features involved in the various embodiments of the present invention may be combined with each other as long as they do not conflict with each other.

[0046] Hereinafter, only certain exemplary embodiments are briefly described. As will be appreciated by those skilled in the art, the described embodiments may be modified in various ways without departing from the spirit or scope of the embodiments of the present invention. Therefore, the drawings and description are to be regarded as illustrative in nature and not restrictive.

[0047] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0048] In the embodiments of the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature includes the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0049] The disclosure below provides many different embodiments or examples for implementing different structures of the embodiments of the present invention. In order to simplify the disclosure of the embodiments of the present invention, the components and configurations of specific examples are described below. Of course, these are merely examples and are not intended to limit the embodiments of the present invention. In addition, the embodiments of the present invention may repeat reference numerals and / or reference letters in different examples. Such repetition is for the purpose of simplicity and clarity and does not in itself indicate the relationship between the various embodiments and / or configurations discussed.

[0050] In the description of the present invention, as shown in the attached Figure 1 In the figure, the left direction is “left”, the right direction is “right”, the upper direction is “up”, the lower direction is “down”, and the directions perpendicular to the viewing angle in the figure are “front” and “back”. The definitions of the above directions are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0051] like Figures 1 to 18 As shown, the rotary joint 1 of the children's product in this embodiment is used to connect the first rod 2 and the second rod 3 of the children's product. The rotary joint 1 has a locked state and an unlocked state. The rotary joint 1 includes a base 11, a first rotating member 12, a second rotating member 13, a locking member 14 and an unlocking member 16.

[0052] The following is a detailed introduction to the specific structure of the rotary joint 1 and the connection relationship between its components:

[0053] like Figure 1 and Figure 2 As shown, the first rotating member 12 is provided on the inner end of the first rod 2, and the first rotating member 12 is rotatably connected to the base 11; the second rotating member 13 is provided on the inner end of the second rod 3, and the second rotating member 13 is rotatably connected to the base 11. Figure 3 and Figure 4 As shown, the locking member 14 is slidably disposed on the base 11 along a first direction. Specifically, the first rod 2 and the base 11 are rotatably connected via a first rotating shaft 114, the second rod 3 and the base 11 are rotatably connected via a second rotating shaft 115, and the locking member 14 and the base 11 are connected via a connecting shaft 116. The locking member 14 is slidably disposed along the first direction on the connecting shaft 116. The number of connecting shafts 116 can be one or two, and two connecting shafts are preferably provided in this embodiment. The axis centers of the first rotating shaft 114, the second rotating shaft 115, and the connecting shaft 116 extend in the vertical direction.

[0054] like Figures 6 and 7As shown, the first rotating member 12 and the second rotating member 13 respectively have a locking protrusion 15, and each locking protrusion 15 respectively has a locking mating surface 151 and an unlocking pressing surface 152. The locking mating surface 151 forms a first angle with the first direction, and the unlocking pressing surface 152 forms a second angle with the first direction. The first angle is greater than or equal to zero and less than the second angle. The locking mating surface 151 and the first direction are parallel to each other, and the unlocking pressing surface 152 and the first direction are perpendicular to each other. In this embodiment, the first direction is the up and down direction. The first rotating member 12 and the second rotating member 13 are respectively located on the left and right sides of the locking member 14, and the locking mating surface 151 faces forward or backward, and the unlocking pressing surface 152 faces downward. As shown Figure 7 and Figure 9 As shown, the locking protrusion 15 further has a base abutting surface 153 . When the rotary joint 1 is in a locked state, the base abutting surface 153 abuts against the base 11 .

[0055] like Figures 3 and 4 As shown, the locking member 14 has a left locking portion 141 and a right locking portion 142 located on the left and right sides respectively; Figure 9 、 Figure 12 and Figure 15 As shown, the left locking portion and the right locking portion respectively have an unlocking mating surface 144 that cooperates with the unlocking pressing surface 152, and a locking contact surface 145 that cooperates with the locking mating surface 151. The locking member 14 also has a limiting protrusion 143, which is located between the left locking portion 141 and the right locking portion 142 and protrudes upward. The limiting protrusion 143 is provided with a groove 1431 extending along the first direction. An elastic member 17 for resetting the locking member 14 is also provided between the locking member 14 and the base 11. In this embodiment, the elastic member 17 is preferably a spring, such as Figure 4 As shown, a spring positioning hole 146 for installing the elastic member 17 is provided below the locking member 14 .

[0056] like Figure 1 and Figure 2 As shown, the rotary joint 1 further includes an unlocking member 16 for driving the locking member 14 to move downward. The unlocking member 16 is slidably disposed on the base 11 along the first direction. The upper end of the unlocking member 16 is provided with a button portion 161, and the lower end of the unlocking member 16 is provided with a connecting portion 162 that can be inserted into the groove 1431. Figure 5 As shown, the base 11 specifically includes a first fixing plate 111 and a second fixing plate 112 disposed opposite each other. The first fixing plate 111 is provided with a through hole 113. The button portion 161 is larger than the through hole 113, and the connecting portion 162 passes through the through hole 113. The first rotating member 12, the second rotating member 13, and the locking member 14 are disposed between the first fixing plate 111 and the second fixing plate 112.

[0057] like Figure 1 、 Figures 8 to 10As shown, the rotary joint is in a locked state, the locking mating surface 151 of each locking protrusion 15 abuts against the locking contact surface 145 on the locking member 14 to prevent the first rotating member 12 and the second rotating member 13 from rotating relative to the base 11, the base abutting surface 153 abuts against the base 11, and the elastic member 17 is not yet subjected to force and is in a relaxed state.

[0058] like Figures 11 to 13 As shown, the user presses the unlocking member 16, and the connecting portion 162 of the unlocking member 16 slides downward along the groove 1431, thereby pushing the locking member 14 to move downward, and the locking mating surface 151 of each locking protrusion 15 and the locking contact surface 145 on the locking member 14 are disengaged, and the elastic member 17 is compressed. Figures 14 to 16 As shown, by rotating any one of the first rod 2 or the second rod 3, the unlocking pressing surface 152 presses on the unlocking mating surface 144 of the locking member 14, so that the locking member 14 cannot slide up and down, and the two turning points of the rotating joint 1 (i.e., the two turning points of the first rotating member 12 and the second rotating member 13 relative to the base 11) are both in the unlocked state.

[0059] like Figures 16 and 17 As shown, the first rod 2 or the second rod 3 is continuously rotated until it contacts the base 11, whereupon the rotation stops. When the rotary joint transitions from the unlocked state to the locked state, the locking member 14 can only be reset under the action of the elastic force when the unlocking pressing surfaces 152 of each locking protrusion 15 are disengaged from the unlocking mating surface 144, thereby achieving synchronous locking and unlocking of the two pivot points.

[0060] This embodiment also includes a child's bed having an unfolded working position and a folded working position, such as Figure 18 As shown, the children's bed includes an upper frame 4, multiple uprights 5 and a bottom frame 6, wherein the upper frame 4 includes multiple side rod assemblies 41, and the multiple side rod assemblies 41 are connected to the upper parts of two adjacent uprights; the bottom frame 6 includes multiple lower connecting rod assemblies 61, and the lower connecting rod assemblies 61 are connected to the lower parts of two adjacent uprights 5.

[0061] At least one side bar assembly 41 includes a first bar 2 and a second bar 3, and a rotation joint 1 is provided between the first bar 2 and the second bar 3. In a locked state, at least one of the first bar 2 and the second bar 3 rests on the base 11.

[0062] The rotary joint in this embodiment can also be applied to other children's products such as children's dining chairs, without any specific limitation.

[0063] To sum up, in the rotating joint of the children's product in this embodiment, after pressing the unlocking member, any one of the locking protrusions of the first rotating member and the second rotating member will be disengaged from the locking member, and the other locking protrusion will also be disengaged from the locking member, thereby realizing synchronous locking and unlocking of the two rotating points. The unlocking process is convenient, making the folding process of the children's product with the rotating joint convenient, reducing the risk of pinching the user's fingers, and improving the safety of the children's product.

[0064] The above embodiments are intended only to illustrate the technical concepts and features of the present invention. Their purpose is to enable those skilled in the art to understand the contents of the present invention and implement them accordingly. They are not intended to limit the scope of protection of the present invention. Any equivalent changes or modifications made in accordance with the spirit of the present invention are intended to be covered by the scope of protection of the present invention.

Claims

1. A rotary joint for a children's product, used to connect a first rod and a second rod of the children's product, wherein the rotary joint has a locked state and an unlocked state, and is characterized in that: The revolute joint comprises: base; a first rotating member, which is disposed on an inner end portion of the first rod, and the first rotating member is rotatably connected to the base; a second rotating member, which is disposed on an inner end portion of the second rod, and the second rotating member is rotatably connected to the base; A locking member is slidably disposed on the base along a first direction; the first rotating member and the second rotating member respectively have a locking protrusion, each of the locking protrusions respectively having a locking mating surface and an unlocking pressing surface, the locking mating surface forming a first angle with the first direction, the unlocking pressing surface forming a second angle with the first direction, the first angle being greater than or equal to zero and less than the second angle; wherein the unlocking pressing surface and the first direction are perpendicular to each other; When the rotating joint is in the locked state, the locking mating surfaces of each locking protrusion respectively contact and cooperate with the locking piece to prevent the first rotating piece and the second rotating piece from rotating relative to the base; when the rotating joint is in the unlocked state, the locking piece and the locking mating surfaces of each locking protrusion are disengaged, and the unlocking pressing surface of at least one locking protrusion is pressed on the locking piece, and the two rotating points of the rotating joint are in the unlocked state; after the locking piece is pushed to slide in the first direction, the first rod piece or the second rod piece is continuously rotated until it touches the base and stops rotating, and the unlocking pressing surface of the locking protrusion on the first rotating piece or the second rotating piece is pressed on the locking piece.

2. The rotary joint of the children's product according to claim 1, characterized in that: The locking mating surface and the first direction are parallel to each other.

3. The rotary joint of the children's product according to claim 2, characterized in that: The first direction is the up-down direction, the first rotating member and the second rotating member are respectively located on the left and right sides of the locking member, the locking mating surface faces forward or backward, and the unlocking pressing surface faces downward.

4. The rotary joint of the children's product according to claim 1, characterized in that: The locking member comprises a left locking portion and a right locking portion respectively located on the left and right sides; the locking member further comprises a limiting protrusion, which is located between the left locking portion and the right locking portion and protrudes upward.

5. The rotary joint of the children's product according to claim 4, characterized in that: The rotary joint further includes an unlocking member for driving the locking member to move downward, and the unlocking member is slidably arranged on the base along the first direction; the rotary joint further includes an elastic member for resetting the locking member.

6. The rotary joint of the children's product according to claim 5, characterized in that: The limiting protrusion is provided with a groove extending along the first direction; the upper end of the unlocking member is provided with a button portion, and the lower end of the unlocking member is provided with a connecting portion that can be inserted into the groove.

7. The rotary joint of the children's product according to claim 6, characterized in that: The base includes a first fixing plate and a second fixing plate arranged opposite to each other, the first fixing plate is provided with a through hole, the size of the button part is larger than the size of the through hole, the connecting part passes through the through hole, and the first rotating member, the second rotating member and the locking member are arranged between the first fixing plate and the second fixing plate.

8. The rotary joint of the children's product according to claim 1, characterized in that: The first rod and the base are rotatably connected via a first rotating shaft, the second rod and the base are rotatably connected via a second rotating shaft, the locking member and the base are connected via a connecting shaft, the locking member can be slidably mounted on the connecting shaft along a first direction, and the axis lines of the first rotating shaft, the second rotating shaft and the connecting shaft extend in the up and down directions respectively.

9. A children's product comprising the rotary joint according to any one of claims 1 to 8.

10. The children's product according to claim 9, characterized in that: The children's product is a children's bed, which has an unfolded working position and a folded working position, and includes: an upper frame, the upper frame comprising a plurality of side bar assemblies; A plurality of vertical poles, wherein the plurality of side pole assemblies are connected to upper portions of two adjacent vertical poles; A bottom frame, the bottom frame including a plurality of lower link assemblies connected to the lower portions of two adjacent uprights; At least one of the side rod assemblies includes the first rod and the second rod, and the rotation joint is provided between the first rod and the second rod.

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