An adjustable-angle baby chair frame and baby care equipment

Abstract

This utility model discloses an adjustable-angle infant chair frame, including a mounting base, a support arm, a load-bearing frame, and a locking mechanism. The locking mechanism includes a switch, a transmission component, and a pressing component. The sliding direction of the transmission component intersects the sliding direction of the pressing component. The switch is connected to the transmission component, and the transmission component and the pressing component abut against each other. One of the transmission component and the pressing component has a protrusion, and the other has a slot. When the transmission component and the pressing component move relative to each other, causing the protrusion to engage with the slot, the pressing component unlocks the support arm. When the transmission component and the pressing component move relative to each other, causing the protrusion to displace the slot, the transmission component drives the pressing component to lock the support arm. This infant chair frame allows for stepless adjustment of the load-bearing frame's tilt angle, and the locking is tight and stable, preventing loosening and ensuring high safety. Furthermore, the overall structure is simple and low-cost. This utility model also discloses an infant care device.

Description

Technical Field

[0001] This utility model relates to the field of infant and child products technology, and in particular to an adjustable-angle infant chair frame and infant care equipment. Background Technology

[0002] Baby chairs are widely used in many households, primarily for infants and toddlers to recline. For example, Chinese patent CN211632561U – Baby Rocking Chair – features a reclining frame connected to a swing arm via a rotating joint, allowing the frame to rotate around the joint and adjust its horizontal tilt, switching between sitting and reclining positions. However, when an infant lies on the frame, the load acts on the rotating joint, causing it to twist. Therefore, the strength and precision of the rotating joint are crucial, resulting in high production costs.

[0003] Some baby chairs use support arms to support the recliner frame. The support arms slide in an arc with the mounting base and are locked or unlocked by a rotating locking block. To prevent loosening, the locking block's pressure point needs to be on the opposite side of the locking block's rotation inflection point, meaning the pressure point and the locking block's rotation / unlocking direction form a dead point, so that the support arm's reaction force will not push the locking block to rotate in the opposite direction to unlock. However, during frequent use of actively rotating the locking block to lock or unlock the support arm, the locking block's pressure point will frequently generate rotational friction with the support arm, causing wear or deformation of the locking block's pressure point and the support arm's surface. This results in a looser lock and a tendency to wobble. Utility Model Content

[0004] In order to overcome at least one of the defects of the prior art, the present invention provides an adjustable tilt baby chair frame, which can realize stepless adjustment of the tilt angle of the support frame, and is locked tightly and securely, not easy to loosen, with high safety, and simple overall structure and low cost.

[0005] The technical solution adopted by this utility model to solve its problem is:

[0006] An adjustable-angle infant chair frame includes a mounting base, a support arm, a support frame, and a locking mechanism. The support arm is connected to the support frame and supports the support frame. The mounting base is provided with an arc-shaped groove, and the support arm is slidably disposed in the arc-shaped groove. The support arm, along with the support frame, slides relative to the mounting base to adjust the tilt angle of the support frame. The locking mechanism is used to lock or unlock the support arm relative to the mounting base.

[0007] The locking mechanism includes a switch, a transmission component, and a pressing component. The switch is movably mounted on the mounting base, while the transmission and pressing components are slidably mounted on the mounting base. The sliding directions of the transmission and pressing components intersect, and the pressing component slides towards or away from the support arm. The switch is connected to the transmission component, and the transmission and pressing components abut against each other. One of the transmission and pressing components has a protrusion, and the other has a slot. When the transmission and pressing components move relative to each other, causing the protrusion to engage with the slot, the pressing component unlocks the support arm. When the transmission and pressing components move relative to each other, causing the protrusion to displace the slot, the transmission component drives the pressing component to lock the support arm.

[0008] Furthermore, the sliding direction of the transmission component is perpendicular to the sliding direction of the extrusion component, and multiple protrusions and slots are provided, with multiple protrusions or multiple slots arranged along the sliding direction of the transmission component.

[0009] Furthermore, the extruder is provided with an extrusion groove through which the support arm passes, and the extrusion groove also penetrates the lower surface of the extruder. The two opposite outer sides of the extruder are respectively provided with receiving grooves. The transmission component is provided with two oppositely arranged extension arms, each extension arm being located in a receiving groove. One of the extension arms and the receiving groove is provided with a protrusion, and the other of the extension arm and the receiving groove is provided with a slot.

[0010] Furthermore, the switch is pivotally connected to the mounting base, and one end of the switch is provided with a push head that is offset from the pivot point of the switch. One end of the transmission component is provided with a connecting groove. The push head is rotatably mounted in the connecting groove and forms a limit along the sliding direction of the transmission component. When the switch rotates, the push head applies force to the side wall of the connecting groove to drive the transmission component to slide.

[0011] Furthermore, the mounting base includes a base body and a top cover. The top cover and the base body are detachably connected. An arc-shaped groove is formed between the base body and the top cover. The base body is also provided with an insertion groove facing the opening of the top cover. The extruder is slidably inserted into the insertion groove, and the top cover restricts the extruder on the base body.

[0012] Furthermore, the mounting base also includes a limiting member, which is detachably connected to the base body. One side of the limiting member is used to slide against the support arm, and the other side is used to slide against the transmission member. The limiting member also restricts the transmission member to the base body.

[0013] Based on the same concept, an infant care device is also provided, which utilizes the infant chair frame described above. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the infant chair frame in the first tilt angle according to an embodiment of the present invention.

[0015] Figure 2This is a schematic diagram of the infant chair frame in the second tilt angle according to an embodiment of the present invention.

[0016] Figure 3 for Figure 1 The diagram shows a partial explosion of the baby chair frame.

[0017] Figure 4 for Figure 3 The diagram shows the structure of the locking mechanism.

[0018] Figure 5 This is an exploded view of the mounting base and locking mechanism according to an embodiment of the present utility model.

[0019] Figure 6 This is a cross-sectional view of the baby chair frame after the top cover has been removed, according to an embodiment of this utility model.

[0020] Figure 7 for Figure 6 The enlarged view of part A shown.

[0021] The meanings of the reference numerals in the attached figures are as follows:

[0022] 1. Mounting base; 11. Arc-shaped slide groove; 12. Base body; 121. Insertion slot; 13. Top cover; 14. Limiting component; 2. Support arm; 3. Bearing frame; 4. Locking mechanism; 41. Switch component; 411. Push head; 42. Transmission component; 421. Extension arm; 422. Slot; 423. Connecting slot; 43. Extrusion component; 431. Extrusion groove; 432. Receiving groove; 433. Protrusion. Detailed Implementation

[0023] To better understand and implement this invention, the technical solutions in the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings.

[0024] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0026] See Figures 1 to 7 This utility model discloses a baby chair frame and a baby care device using the baby chair frame. The baby care device can be a baby rocking chair or a fixed baby chair, etc. The infant chair frame includes a mounting base 1, a support arm 2, a support frame 3, and a locking mechanism 4. The support arm 2 is connected to the support frame 3 and supports the support frame 3. The support frame 3 is usually covered with a soft cloth to support the infant's body lying in the support frame 3. The mounting base 1 is provided with an arc-shaped slide groove 11. The support arm 2 is slidably disposed in the arc-shaped slide groove 11. Specifically, the two ends of the support arm 2 are respectively connected to the two ends of the support frame 3 along its length. The support arm 2 has an arc-shaped section that matches the arc-shaped slide groove 11, so that the relative position of the support arm 2 and the mounting base 1 is adjustable. The support arm 2 slides relative to the mounting base 1 along with the support frame 3 to adjust the tilt angle of the support frame 3. The locking mechanism 4 is used to lock or unlock the support arm 2 relative to the mounting base 1. When the locking mechanism 4 locks the support arm 2, it restricts the support arm 2 from sliding relative to the mounting base 1. When the locking mechanism 4 unlocks the support arm 2, it allows the connecting arm to slide relative to the first mounting base 1.

[0027] Generally, the support frame 3 is usually elliptical, with a length direction and a width direction. Its length direction is in the same direction as the longitudinal direction of the body when lying down (i.e., the length direction of the body), and its width direction is in the lateral direction of the body when lying down. The purpose of adjusting the tilt angle of the support frame 3 in this solution is mainly to create height changes at both ends of the support frame 3 along its length direction and to lock it, thereby changing the infant's supine posture. If the support frame 3 has other shapes, the length and width directions of the support frame 3 can be determined according to the supine posture. When the infant care equipment is placed on the ground for use, the guide track surface of the arc-shaped slide 11 is parallel to the length direction of the support frame 3 and perpendicular to the width direction of the support frame 3. After the support arm 2 slides and changes position in the arc-shaped slide 11, the locking mechanism 4 locks the support arm 2 in the adjusted position, which allows the tilt angle of the support frame 3 to change and be fixed in the new tilt angle state.

[0028] See Figure 4 , Figure 5 and Figure 7In this embodiment, the locking mechanism 4 includes a switch 41, a transmission member 42, and a pressing member 43. The switch 41 is pivotally connected to the mounting base 1. The transmission member 42 and the pressing member 43 are both slidably disposed on the mounting base 1. Specifically, the transmission member 42 is slidably disposed on the mounting base 1 along a first direction, and the pressing member 43 is slidably disposed on the mounting base 1 along a second direction. The first direction and the second direction are perpendicular to each other. The switch 41 is connected to the transmission member 42, and the transmission member 42 and the pressing member 43 are in abutting cooperation. The pressing member 43 slides toward or away from the support arm 2. When the user rotates the switch 41, the switch 41 drives the transmission member 42 to slide relative to the mounting base 1 along the first direction, so that the transmission member 42 drives the pressing member 43 to slide relative to the mounting base 1 along the second direction, so that the pressing member 43 moves toward the support arm 2 to form a pressing lock, thereby preventing the support arm 2 from sliding relative to the mounting base 1.

[0029] The extrusion member 43 has multiple protrusions 433, and the transmission member 42 has multiple slots 422. Specifically, the extrusion member 43 has a first mating surface, and the transmission member 42 has a second mating surface. The first and second mating surfaces are opposite to each other and are both parallel to a first direction. The multiple protrusions 433 are arranged along the first direction on the first mating surface, and the multiple slots 422 are arranged along the first direction on the second mating surface. That is, the multiple protrusions 433 are arranged along the sliding direction of the transmission member 42, and the multiple slots 422 are arranged along the first direction on the second mating surface. The components are arranged along the sliding direction of the transmission component 42. When the transmission component 42 and the pressing component 43 move relative to each other, causing the protrusion 433 to engage with the slot 422, the pressing component 43 unlocks the support arm 2. When the transmission component 42 and the pressing component 43 move relative to each other, causing the protrusion 433 to be misaligned with the slot 422, the second mating surface of the transmission component 42 can push against the protrusion 433 on the pressing component 43, causing the pressing component 43 to move toward the support arm 2 to form a pressing lock, so as to realize that the transmission component 42 drives the pressing component 43 to lock the support arm 2.

[0030] In the above scheme, the support arm 2 supports the support frame 3. The support arm 2 can be infinitely adjusted by sliding in the arc-shaped slide groove 11. The clamping member 43 and the support arm 2 are used to form a lock. When the infant lies on the support frame 3, the load force is mainly applied to the mounting base 1 through the support arm 2. The sliding directions of the transmission member 42 and the clamping member 43 are perpendicular, which converts the first direction sliding of the transmission member 42 into the second direction sliding of the clamping member 43. This makes the locking and unlocking operation simple, less prone to loosening, and has lower strength requirements for the components of the locking mechanism 4, which helps to save costs.

[0031] Since the sliding directions of the transmission component 42 and the pressing component 43 are perpendicular, and the arrangement direction of the multiple protrusions 433 or multiple slots 422 is parallel to the sliding direction of the transmission component 42, when the pressing component 43 is subjected to the reaction force of the support arm 2 and has a tendency to slide, the force of the pressing component 43 acting on the transmission component 42 is perpendicular to the sliding direction of the transmission component 42. This reaction force cannot drive the transmission component 42 to slide in the opposite direction, causing loosening and unlocking. Therefore, the safety is high.

[0032] It should be noted that in other examples, the objects on which the protrusion 433 and the slot 422 are set can be interchanged. For example, the protrusion 433 can be set on the transmission component 42, while the slot 422 can be set on the extrusion component 43. The number of protrusions 433 and slots 422 can also be one, two, etc. The number of protrusions 433 and slots 422 is not limited here.

[0033] It should be noted that the first direction and the second direction can also intersect at an acute angle, preferably between 80° and 90°. In this way, the component of the reaction force of the pressing member 43 in the sliding direction of the transmission member 42 is small. When this component force is less than the static friction force of the transmission member 42, it will not be able to drive the transmission member 42 to slide in the opposite direction, resulting in loosening and unlocking.

[0034] See Figure 3 , Figure 5 and Figure 7 In this embodiment, the mounting base 1 includes a base body 12, an upper cover 13, and a limiting member 14. The upper cover 13 and the base body 12 are detachably connected by screws or rivets. An arc-shaped groove 11 is formed between the base body 12 and the upper cover 13. A switch member 41 and a transmission member 42 are installed in the base body 12. A pressing member 43 is located between the base body 12 and the upper cover 13. The base body 12 is also provided with an insertion groove 121 that opens towards the upper cover 13. The pressing member 43 is slidably inserted into the insertion groove 121. The upper cover 13 holds the pressing member 43 in place. 3. The limiting member 14 is restricted to the seat 12 to prevent the pressing member 43 from moving in other directions. The limiting member 14 can also be detachably connected to the seat 12 by means of screws, rivets or snap-fits, or the upper cover 13 can be used to press and fasten the limiting member 14 to the seat 12. One side of the limiting member 14 is used to slide against the support arm 2, and the other side of the limiting member 14 is used to slide against the transmission member 42. The limiting member 14 also restricts the transmission member 42 to the seat 12, thereby preventing the transmission member 42 from moving in other directions.

[0035] See Figure 4 and Figure 5The extrusion part 43 is roughly n-shaped. The extrusion part 43 is provided with an extrusion groove 431 through which the support arm 2 passes. The extrusion groove 431 also penetrates the lower surface of the extrusion part 43. When installing the extrusion part 43, the extrusion part 43 can be covered on the support arm 2 from top to bottom, which facilitates assembly. The two opposite outer sides of the extrusion part 43 are respectively provided with receiving grooves 432. The lower sidewall of the receiving groove 432 is used as the first mating surface. Multiple protrusions 433 are arranged at intervals on the lower sidewall of the receiving groove 432.

[0036] One end of the transmission component 42 is provided with a connecting groove 423. The transmission component 42 is also provided with two opposing extension arms 421, each extension arm 421 located in a receiving groove 432. The lower surface of the extension arm 421 serves as a second mating surface. Multiple slots 422 are spaced apart on the lower surface of the extension arm 421. When the protrusion 433 corresponds to the slot 422, a certain gap can be formed between the lower surface of the extension arm 421 and the lower sidewall of the receiving groove 432. This gap allows the extruded component to be pressed. The compression member 43 creates a certain space for sliding, allowing the protrusion 433 to engage with the slot 422. This allows the compression member 43 to unlock the support arm 2, enabling it to slide and change position within the arc-shaped groove 11. When the transmission member 42 and the compression member 43 move relative to each other, the protrusion 433 and the slot 422 become misaligned. The lower surface of the extension arm 421 abuts against the protrusion 433 in the receiving groove 432. The extension arm 421 drives the compression member 43 to slide downwards, thus locking the support arm 2. Because the two extension arms 421 are located in the receiving grooves 432 on opposite outer sides of the compression member 43, the driving force exerted by the extension arms 421 on the compression member 43 is relatively uniform, making the compression lock of the support arm 2 more stable and preventing wobbling.

[0037] See Figure 4 and Figure 5 To achieve the connection and cooperation between the switch element 41 and the transmission element 42, preferably, one end of the switch element 41 is provided with a push head 411. The push head 411 is generally cylindrical and offset from the pivot point of the switch element 41. The push head 411 is rotatably mounted in the connecting groove 423. The diameter of the push head 411 is adapted to the width of the connecting groove 423 in the first direction, thereby limiting the push head 411 in the sliding direction of the transmission element 42 in the connecting groove 423. This allows the push head 411 to drive the transmission element 42 when the switch element 41 rotates. Specifically, when the switch element 41 rotates, the push head 411 applies force to the side wall of the connecting groove 423 to drive the transmission element 42 to slide. When the push head 411 adopts other shapes, in the first direction, the outer contour dimension of the push head 411 is adapted to the width dimension of the connecting groove 423 to ensure that when the push head 411 pushes the transmission element 42 to slide back and forth, no excessive gap is formed, which would cause the switch element 41 to rotate and loosen.

[0038] In other preferred embodiments, the switch 41 can also be movably mounted on the mounting base 1 in other ways, such as by screwing or sliding, so that the switch 41 can drive the transmission component 42 to slide.

[0039] The technical means disclosed in this utility model are not limited to those disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications are also considered within the scope of protection of this utility model.

Claims

1. A reclining angle adjustable baby chair frame, characterized in that, include: The system comprises a mounting base, a support arm, a support frame, and a locking mechanism. The support arm is connected to the support frame and supports the support frame. The mounting base has an arc-shaped groove, and the support arm is slidably disposed in the arc-shaped groove. The support arm, along with the support frame, slides relative to the mounting base to adjust the tilt angle of the support frame. The locking mechanism is used to lock or unlock the support arm relative to the mounting base. The locking mechanism includes a switch, a transmission component, and a pressing component. The switch is movably mounted on the mounting base. The transmission component and the pressing component are both slidably mounted on the mounting base. The sliding direction of the transmission component intersects the sliding direction of the pressing component, and the pressing component slides towards or away from the support arm. The switch is connected to the transmission component, and the transmission component and the pressing component abut against each other. One of the transmission component and the pressing component has a protrusion, and the other of the transmission component and the pressing component has a slot. When the transmission component and the pressing component move relative to each other, causing the protrusion to engage with the slot, the pressing component unlocks the support arm. When the transmission component and the pressing component move relative to each other, causing the protrusion to displace the slot, the transmission component drives the pressing component to lock the support arm.

2. The adjustable tilt baby chair frame according to claim 1, characterized in that, The sliding direction of the transmission component is perpendicular to the sliding direction of the extrusion component. Multiple protrusions and multiple slots are provided, and the multiple protrusions or multiple slots are arranged along the sliding direction of the transmission component.

3. The reclining baby chair frame according to claim 1, wherein The extruder has an extrusion groove through which the support arm passes, and the extrusion groove also penetrates the lower surface of the extruder. The two opposite outer sides of the extruder are respectively provided with receiving grooves. The transmission member is provided with two oppositely arranged extension arms, each of the extension arms being located in one of the receiving grooves. One of the extension arms and the receiving groove is provided with the protrusion, and the other of the extension arm and the receiving groove is provided with the slot.

4. The reclining child seat frame according to any one of claims 1 to 3, wherein The switch is pivotally connected to the mounting base. One end of the switch is provided with a push head, which is offset from the pivot point of the switch. One end of the transmission member is provided with a connecting groove. The push head is rotatably mounted in the connecting groove and forms a limit along the sliding direction of the transmission member. When the switch rotates, the push head applies force to the side wall of the connecting groove to drive the transmission member to slide.

5. The reclining child seat frame according to any one of claims 1 to 3, wherein The mounting base includes a base body and a top cover. The top cover is detachably connected to the base body. An arc-shaped groove is formed between the base body and the top cover. The base body is also provided with an insertion groove facing the opening of the top cover. The extruder is slidably inserted into the insertion groove. The top cover restricts the extruder on the base body.

6. The adjustable-angle infant chair frame according to claim 5, characterized in that, The mounting base also includes a limiting member, which is detachably connected to the base body. One side of the limiting member is used to slide against the support arm, and the other side is used to slide against the transmission member. The limiting member also restricts the transmission member to the base body.

7. An infant care device, characterized in that, The application includes a child chair frame as described in any one of claims 1 to 6.

Images