Rotation adjusting device, child fitness frame and baby walker

Abstract

The utility model relates to a rotation adjusting device, a child fitness frame and a baby walker. The rotation adjusting device comprises a base and a rod body connected to the base, the base comprises a mounting cavity, the rod body is inserted into the mounting cavity, and the rotation adjusting device further comprises a locking piece and a gear shifting assembly. The rod body can move between a first position locked with the locking piece and a second position unlocked with the locking piece, rotation of the rod body in the mounting cavity is stopped when the rod body is located at the first position, and rotation of the rod body in the mounting cavity is stopped when the rod body is located at the second position. The rod body can rotate in the mounting cavity and can be switched among a plurality of rotation angle gears through the gear shifting assembly, so that the posture of the rod body is changed. The rod body is convenient to adjust, and conversion of different modes is easy to achieve.

Description

Technical Field

[0001] The present application relates to the technical field of children's products, and in particular to a rotation adjustment device, a children's fitness frame and a baby walker. Background Art

[0002] The toddler fitness frame is a children's product for young children. It plays a very important role in the growth process of young children and is a product often chosen by many parents.

[0003] The handle of the toddler fitness frame can be set to be adjustable to change the height and angle of the handle, so that the handle is in different states, thereby realizing different usage modes. At present, the common toddler fitness frames on the market have many parts. When changing the usage mode, the operation is cumbersome, and it is often necessary to disassemble multiple parts. There are problems such as easy loss of parts and complex installation, which is very inconvenient for consumers to use. Utility Model Content

[0004] Based on this, it is necessary to provide a technical solution that is easy to adjust to facilitate the transition between different modes.

[0005] To this end, the present application adopts the following technical solution: a rotation adjustment device, comprising a base and a rod body connected to the base, the base comprising an installation cavity, the rod body being inserted into the installation cavity, the rotation adjustment device also comprising a locking piece and a gear shifting assembly, the rod body being able to move between a first position locked with the locking piece and a second position unlocked with the locking piece, wherein in the first position, the rotation of the rod body in the installation cavity is prevented, and in the second position, the rod body is able to rotate in the installation cavity and switch between multiple rotation angle gears by means of the gear shifting assembly to change the posture of the rod body.

[0006] In one embodiment, the rotation adjustment device further includes an elastic member, and the elastic member elastically presses against the gear shifting assembly.

[0007] In one embodiment, the elastic member provided by the elastic member prompts the rod to move from the first position to the second position.

[0008] In one embodiment, the gear shifting assembly includes a first gear component and a second gear component, and the first gear component and the second gear component have teeth that cooperate with each other; wherein, when the rod body rotates in the mounting cavity at the second position, the teeth on the second gear component and the teeth on the first gear component produce a one-by-one offset tooth jumping motion.

[0009] In one embodiment, the first tooth member and the second tooth member are configured to be able to slide along the axial direction of the installation cavity.

[0010] In one embodiment, the base is provided with a limiting groove, and the first tooth component and the second tooth component are provided with a protrusion that cooperates with the limiting groove, and the cooperation between the protrusion and the limiting groove allows the first tooth component and the second tooth component to slide along the axial direction of the installation cavity and prevents the first tooth component and the second tooth component from rotating around the axis.

[0011] In one embodiment, the second tooth component and the rod body are relatively stationary in the direction of rotation around the axis of the installation cavity, and when the rod body is in the second position, the second tooth component is disengaged from the limiting groove.

[0012] In one embodiment, the second tooth component is assembled with the rod body via a polygonal mating surface, or the second tooth component is integrally formed on the rod body.

[0013] In one embodiment, the locking member is a knob clamped on the base, and the knob rotates in the mounting cavity to lock or unlock with the rod body.

[0014] In one embodiment, the knob and the rod body have a threaded structure that fits together and is tightened.

[0015] The present application also adopts the following technical solution: a children's fitness frame, comprising a support rod and a rotation adjustment device as described in any of the above embodiments, wherein the base is configured at the top end of the support rod, and the rod body is a handrail rod mounted on the support rod.

[0016] The present application also adopts the following technical solution: a baby walker, comprising a frame and a rotation adjustment device as described in any of the above embodiments, wherein the rotation adjustment device is connected to the frame, and the rod body constitutes a handrail of the baby walker.

[0017] Compared with the prior art, the rotation adjustment device, children's fitness frame and baby walker provided by the present application include a rod body that can move between a first position locked with a locking member and a second position unlocked with the locking member. In the first position, the rotation of the rod body in the installation cavity is prevented. In the second position, the rod body can rotate in the installation cavity and switch between multiple rotation angle gears through the gear adjustment component to change the posture of the rod body. With such a configuration, the fixed connection and movable adjustment of the rod body can be achieved by only controlling the locking and unlocking of the locking member and the rod body, without removing parts, which is convenient for adjustment and easy to achieve the conversion of different modes. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the conventional technology, the drawings required for use in the embodiments or the conventional technology descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 A three-dimensional combination diagram of an embodiment of the baby walker provided in this application.

[0020] Figure 2 A three-dimensional exploded view of an embodiment of a rotation adjustment device provided in the present application.

[0021] Figure 3 This is a partially enlarged cross-sectional view of an embodiment of the rotation adjustment device provided in the present application in a locked state.

[0022] Figure 4 This is a partially enlarged cross-sectional view of an embodiment of the rotation adjustment device provided in the present application in an unlocked state.

[0023] The reference numerals of the components are as follows:

[0024] 100. Baby walker; 10. Rotation adjustment device; 1. Base; 101. Mounting cavity; 11. Left shell; 111. Limiting groove; 12. Right shell; 2. Rod body; 21. Polygonal column section; 22. External thread; 3. Locking member; 31. Hook; 32. Internal thread; 4. Elastic member; 5. Shifting assembly; 51. First tooth component; 511. First protrusion; 512. First tooth; 52. Second tooth component; 521. Second protrusion; 522. Second tooth; 6. Support rod; 7. Frame. DETAILED DESCRIPTION

[0025] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0026] It should be noted that when a component is referred to as being "fixed to" or "disposed on" another component, it may be directly on the other component or there may also be a central component. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may be a central component at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in the specification of this application are for illustrative purposes only and do not represent the only implementation method.

[0027] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0028] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first feature is directly in contact with the second feature, or the first feature and the second feature are in contact indirectly through an intermediate medium. Moreover, a first feature being “above”, “above”, or “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, or “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0029] Unless otherwise defined, all technical and scientific terms used in the specification of this application have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used in the specification of this application includes any and all combinations of one or more related listed items.

[0030] See also Figures 1 to 4The present application provides a rotation adjustment device 10, which can be applied to a children's fitness frame or a walker 100. The rotation adjustment device 10 includes a base 1 and a rod body 2 connected to the base 1, the base 1 includes a mounting cavity 101, and the rod body 2 is inserted into the mounting cavity 101. The rotation adjustment device 10 also includes a locking member 3 and a shifting assembly 5, the rod body 2 can move between a first position locked with the locking member 3 and a second position unlocked with the locking member 3, wherein in the first position, the rotation of the rod body 2 in the mounting cavity 101 is prevented, and in the second position, the rod body 2 can rotate in the mounting cavity 101 and switch between multiple rotation angle gears by the shifting assembly 5 to change the posture of the rod body 2.

[0031] The rotation adjustment device 10 provided in the present application can realize the fixed connection and movable adjustment of the rod body 2 by only controlling the locking and unlocking of the locking member 3 and the rod body 2, and realizes the switching of multiple rotation angle gears through the gear shifting component 5, without the need to remove parts, and is convenient for adjustment and easy to realize the conversion of different modes.

[0032] Please refer to Figure 2 As shown, in one embodiment, the axis of the mounting cavity 101 is as follows Figure 2 As shown in the L indicated in FIG. 1 , it extends in the left-right direction to form a Figure 2 The rod body 2 is capable of rotating around the axis L when in the second position, forming a Figure 2 The rotational motion indicated by the arrow r in Figure 1 As shown, the rod body 2 is not a straight rod, so when the rod body 2 rotates along the axis L, the height and front-to-back position of the middle part will change, that is, the posture of the rod body 2 will change to adapt to different usage modes.

[0033] Please continue reading Figure 2 As shown, in this embodiment, the base 1 includes a left shell 11 and a right shell 12 fixed to each other, and the installation cavity 101 penetrates the left shell 11 and the right shell 12 in the left-right direction. The left shell 11 and the right shell 12 can be fixed together inseparably by ultrasonic welding, or can be fixed together by common detachable connection methods such as screws and snaps. The rotation adjustment device 10 further includes an elastic member 4, which is arranged between the locking member 3 and the gear shifting assembly 5 and is used to elastically resist the gear shifting assembly 5. The direction of the elastic force provided by the elastic member 4 is to cause the rod body 2 to move from the first position to the second position. In this embodiment, the elastic member 4 is a spring. The base 1 constitutes a base component for installing one end of the rod body 2, the locking member 3, the elastic member 4 and the gear shifting assembly 5.

[0034] In this embodiment, a limiting groove 111 is provided on the left shell 11 of the base 1, and the gear shifting assembly 5 includes a first tooth component 51 and a second tooth component 52. The limiting groove 111 is used to cooperate with the first tooth component 51 and the second tooth component 52, so that the first tooth component 51 and the second tooth component 52 and the left shell 11 remain relatively stationary in the direction indicated by the arrow r. The right shell 12 of the base 1 does not have a limiting structure such as the limiting groove 111 in the left shell 11. The first tooth component 51 and the second tooth component 52 are configured to be able to slide in the limiting groove 111 along the axial direction of the mounting cavity 101. When the rod body 2 is in the first position, the first tooth member 51 and the second tooth member 52 both cooperate with the limiting groove 111, and the first tooth member 51 and the second tooth member 52 cannot rotate around the axis L; when the rod body 2 is in the second position, the first tooth member 51 is still cooperated with the limiting groove 111, and the second tooth member 52 moves to the right shell 12 and disengages from the limiting groove 111, and the second tooth member 52 can rotate around the axis L.

[0035] The first tooth member 51 and the second tooth member 52 are both roughly annular, and the outer surface of each peripheral wall is provided with a protrusion for cooperating with the limiting groove 111. The first tooth member 51 and the second tooth member 52 are provided with teeth that cooperate with each other on the opposite end faces. The cooperation between the protrusion and the limiting groove 111 allows the first tooth member 51 and the second tooth member 52 to slide along the axial direction of the installation cavity 101, and prevents the first tooth member 51 and the second tooth member 52 from rotating around the axis. Specifically, the first tooth member 51 is provided with a first protrusion 511 and a plurality of first teeth 512, and the second tooth member 52 is provided with a second protrusion 521 and a plurality of second teeth 522. During the movement of the rod body 2 from the first position to the second position, the first tooth member 51 can slide in the limiting groove 111, but is always located in the limiting groove 111 and will not be separated from the limiting groove 111, while the second tooth member 52 is separated from the limiting groove 111 when the rod body 2 moves to the second position and can then rotate around the axis L. The second tooth member 52 and the rod body 2 are relatively stationary in the direction of rotation around the axis of the installation cavity 101; in this embodiment, the second tooth member 52 and the rod body 2 are assembled by a polygonal mating surface, specifically, the second tooth member 52 has a polygonal hole in the middle, and the rod body 2 has a polygonal column section 21, which is inserted into the polygonal hole to prevent the two from rotating upward. In some other embodiments, the second tooth member 52 can also be integrally formed on the rod body 2, or connected to the rod body 2 by means of buckles, screws, etc.

[0036] During the movement of the rod body 2 from the first position to the second position, the elastic member 4 elastically presses against the first tooth member 51, so that the first tooth member 51 and the second tooth member 52 maintain contact. When the rod body 2 rotates in the installation cavity 101 at the second position, the teeth on the second tooth member 52 and the teeth on the first tooth member 51 produce a one-by-one dislocation tooth-jumping movement. Each tooth jump is to adjust a rotation angle gear, so that multi-angle and more precise gear adjustment can be achieved. Moreover, due to the cooperation between the teeth, the rod body 2 can remain stable at any gear, and then the rod body 2 can be locked at the gear by the locking member 3, which is easy to operate.

[0037] See also Figures 2 to 4 As shown, in this embodiment, the locking member 3 is a knob clamped on the base 1, and the knob rotates in the installation cavity 101 to lock or unlock the rod body 2. Specifically, the locking member 3 is installed on the left shell 11 of the base 1 in the direction opposite to the insertion direction of the rod body 2. The locking member 3 has a hook 31 clamped with the left shell 11 of the base 1. The clamping cooperation between the hook 31 and the base 1 limits the movement of the locking member 3 along the axial direction, but does not limit the rotational movement of the locking member 3. There is a threaded structure between the locking member 3 and the rod body 2 that is tightened with each other. Specifically in this embodiment, the end of the knob is provided with an internal thread 32, and the end of the rod body 2 is provided with an external thread 22. When the knob is turned, the internal thread 32 and the external thread 22 are screwed together, and since the axial movement of the knob is limited, the rod body 2 is pulled and locked in the direction of being inserted into the installation cavity 101, thereby achieving the locking of the rod body 2.

[0038] Combine the following Figure 3 and Figure 4 The use process of the rotation adjustment device 10 of the present application is described as follows: Figure 3 As shown in the figure, the rod body 2 is in a state of being locked with the locking member 3 in the first position. At this time, the locking member 3 is threadedly connected to the rod body 2, the elastic member 4 is compressed, the shifting assembly 5 is restricted in the limiting groove 111 of the base 1 and cannot rotate, and the rod body 2 cannot rotate; when the locking member 3 is loosened, the shifting assembly 5 and the rod body 2 move to the right due to the thrust of the threaded structure and the elastic force of the elastic member 4, until the threaded connection is completely disengaged, forming a state as shown in the figure. Figure 4In the state shown, the second tooth member 52 of the gear shifting assembly 5 is disengaged from the limiting groove 111, and the rotation of the rod body 2 and the second tooth member 52 is not restricted. At this time, the rod body 2 can be rotated to achieve gear adjustment; during the gear adjustment process, the first tooth member 51 is elastically pushed by the elastic member 4 to maintain contact with the second tooth member 52, and the first tooth member 51 will float along the axis to achieve tooth jumping movement; when the rod body 2 is adjusted to the desired gear, the rod body 2 is pushed toward the locking member 3 and the locking member 3 is tightened, and the locking member 3 pulls the rod body 2 and locks it, forming the gear position as shown in the figure. Figure 3 Status shown.

[0039] Please refer again Figure 1 As shown, the present application further provides a children's fitness frame, comprising a support rod 6 and a rotation adjustment device 10 as described in any of the above embodiments, wherein the base 1 is arranged at the top of the support rod 6, and the rod body 2 is a handrail mounted on the support rod 6. In this embodiment, the children's fitness frame also constitutes a part of the frame 7 of the baby walker 100, that is, the present application further provides a baby walker 100, which comprises a frame 7 and a rotation adjustment device 10 as described in any of the above embodiments, wherein the rotation adjustment device 10 is connected to the frame 7, and the rod body 2 constitutes the handrail of the baby walker 100.

[0040] Through the above description of the specific embodiments, it can be known that, compared with the prior art, the rotation adjustment device 10, the children's fitness frame and the walker 100 provided by the present application include a rod body 2 that can move between a first position locked with the locking member 3 and a second position unlocked with the locking member. In the first position, the rotation of the rod body 2 in the installation cavity 101 is prevented. In the second position, the rod body 2 can rotate in the installation cavity 101 and switch between multiple rotation angle gears through the gear shifting assembly 5 to change the posture of the rod body 2. In this way, it is only necessary to control the locking and unlocking of the locking member 3 and the rod body 2 to achieve the fixed connection and movable adjustment of the rod body 2 without removing parts, which is convenient for adjustment and easy to achieve the conversion of different modes.

[0041] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0042] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the scope of patent protection of the present application shall be subject to the attached claims.

Claims

1. A rotation adjustment device, comprising a base and a rod connected to the base, wherein the base comprises a mounting cavity, and the rod is inserted into the mounting cavity, characterized in that: The rotation adjustment device further comprises a locking member and a shift assembly, wherein the rod body is movable between a first position locked with the locking member and a second position unlocked with the locking member; Wherein, in the first position, the rotation of the rod body in the installation cavity is prevented, and in the second position, the rod body can rotate in the installation cavity and switch between multiple rotation angle gears through the gear shifting component to change the posture of the rod body.

2. The rotation adjustment device according to claim 1, characterized in that: The rotation adjustment device further comprises an elastic member, wherein the elastic member elastically abuts against the shifting assembly, and the elastic member provided by the elastic member prompts the rod body to move from the first position to the second position.

3. The rotation adjustment device according to claim 1 or 2, characterized in that: The gear shifting assembly includes a first gear component and a second gear component, wherein the first gear component and the second gear component have teeth that cooperate with each other; wherein, when the rod body rotates in the mounting cavity at the second position, the teeth on the second gear component and the teeth on the first gear component produce a one-by-one offset tooth-jumping motion.

4. The rotation adjustment device according to claim 3, characterized in that: The first tooth member and the second tooth member are configured to be slidable along an axial direction of the installation cavity.

5. The rotation adjustment device according to claim 4, characterized in that: The base is provided with a limiting groove, and the first tooth component and the second tooth component are provided with a protrusion that cooperates with the limiting groove. The cooperation between the protrusion and the limiting groove allows the first tooth component and the second tooth component to slide along the axial direction of the installation cavity and prevents the first tooth component and the second tooth component from rotating around the axis.

6. The rotation adjustment device according to claim 5, characterized in that: The second tooth component and the rod body are relatively stationary in the direction of rotation around the axis of the installation cavity, and when the rod body is in the second position, the second tooth component is disengaged from the limiting groove.

7. The rotation adjustment device according to claim 6, characterized in that: The second tooth component is assembled with the rod body via a polygonal mating surface, or the second tooth component is integrally formed on the rod body.

8. The rotation adjustment device according to claim 1, characterized in that: The locking member is a knob clamped on the base, and the knob is rotated in the installation cavity to lock or unlock with the rod body.

9. A children's fitness frame, characterized in that: It comprises a support rod and a rotation adjustment device as claimed in any one of claims 1 to 8, wherein the base is arranged at the top end of the support rod, and the rod body is a handrail rod mounted on the support rod.

10. A baby walker, characterized in that: The walker comprises a frame and a rotation adjustment device as claimed in any one of claims 1 to 8, wherein the rotation adjustment device is connected to the frame, and the rod body constitutes a handrail of the walker.

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