Lifting structure and baby rocking chair frame

Abstract

The utility model discloses a lifting structure, which is characterized in that at least one group of transmission assembly is arranged between a movable seat and a base, the transmission assembly comprises a first driving sheet and a second driving sheet which are arranged in a mutually crossed manner as well as a third driving sheet and a fourth driving sheet which are arranged in a mutually crossed manner, and the upper end of the first driving sheet is hinged with the movable seat; the lower end of the first driving piece is hinged to the upper end of the third driving piece, the lower end of the third driving piece is hinged to the base, the upper end of the second driving piece is hinged to the movable seat, the lower end of the second driving piece is hinged to the upper end of the fourth driving piece, the lower end of the fourth driving piece is hinged to the base, and a fifth driving piece hinged to the second driving piece and the third driving piece is arranged between the second driving piece and the third driving piece. And a sixth driving sheet which is hinged with the second driving sheet and the third driving sheet and is separated from the fifth driving sheet is arranged between the second driving sheet and the third driving sheet. The utility model further discloses a baby rocking chair frame adopting the lifting structure. The lifting structure and the baby rocking chair frame are stable and reliable in lifting.

Description

Technical field

[0001] The utility model relates to a lifting structure and also to a baby rocking chair frame. [Background Technology]

[0002] Baby rockers are a common accessory for infants and young children as they grow. Current baby rockers are generally capable of moving up and down. While various lifting mechanisms exist on the market, many still suffer from significant wobbling of the rocker's support frame during the lifting process, creating a sense of insecurity for consumers.

[0003] Therefore, the present invention is just based on above deficiency and produces. [Utility Model Content]

[0004] The utility model aims to overcome the deficiencies of the prior art and provide a lifting structure that is stable and reliable in lifting.

[0005] The utility model also provides a baby rocking chair frame, which adopts the aforementioned lifting structure so that the supporting frame of the baby rocking chair frame can move forward and backward and lift at the same time, which can effectively soothe the infant sitting in it, and the lifting movement is smooth and reliable, with good safety.

[0006] The utility model is realized through the following technical solutions:

[0007] A lifting structure includes a base, a movable base is provided above the base, and at least one group of transmission components that can drive the movable base to rise and fall relative to the base is provided between the movable base and the base, the transmission component includes a first drive plate and a second drive plate arranged crosswise with each other, and a third drive plate and a fourth drive plate arranged crosswise with each other, the upper end of the first drive plate is hinged to the movable base around a first axis A, the lower end of the first drive plate and the upper end of the third drive plate are hinged around a second axis B, the lower end of the third drive plate and the base are hinged around a third axis C, the upper end of the second drive plate and the movable base are hinged around a fourth axis D, the lower end of the second drive plate and the upper end of the fourth drive plate are hinged around a fifth axis E, the lower end of the fourth drive plate and the base are hinged around a sixth axis F, a fifth drive plate hinged to the second and third drive plates is provided between the second and third drive plates, and a sixth drive plate hinged to the second and third drive plates and spaced apart from the fifth drive plate is also provided between the second and third drive plates.

[0008] The first drive plate and the fourth drive plate are parallel to each other, the second drive plate and the third drive plate are parallel to each other, and the fifth drive plate and the sixth drive plate are parallel to each other.

[0009] The upper end of the fifth drive plate is hinged to the middle of the second drive plate around the seventh axis G, and the lower end of the fifth drive plate is hinged to the first drive plate and the third drive plate coaxially around the second axis B.

[0010] The lower end of the sixth drive plate is hinged to the middle of the third drive plate around the eighth axis H, and the upper end of the sixth drive plate is hinged to the second drive plate and the fourth drive plate coaxially around the fifth axis E.

[0011] The base is also provided with a first power mechanism, the output shaft a of the first power mechanism is fixedly connected to a first rotating rod, and a first connecting rod is connected between the first driving plate and the first rotating rod so as to be rotatable relative to the first driving plate and the first rotating rod.

[0012] There are two groups of transmission components and they are arranged on the base at intervals from each other. A connecting seat is provided between the two groups of transmission components and is fixedly connected to the first drive plates of the two groups. One end of the first connecting rod of each group of transmission components is hinged on the connecting seat, and the other end is hinged on the corresponding first rotating rod.

[0013] The first power mechanism includes a first motor and a first reducer connected to the base, the output shaft of the first motor is set downward, the input shaft of the first reducer is set downward, the first motor is connected to a first pulley, the first reducer is connected to a second pulley, and the first pulley and the second pulley are connected by a belt.

[0014] The first reducer includes a housing, a worm is provided in the housing, the worm is connected to the second pulley, and a worm wheel matched with the worm and a driving gear coaxially rotating with the worm wheel are also provided in the housing, a driven gear is meshed with the driving gear, and the shaft a of the driven gear extends out of the housing and is connected to the first rotating rods at both ends thereof.

[0015] A baby rocking chair frame includes a base, the base is provided with a lifting structure as described in any one of claims 1 to 3, the base is also provided with a driving structure that can drive the lifting structure to move forward and backward relative to the base, and the movable seat is connected to a supporting frame that supports the rocking chair seat.

[0016] The driving structure includes a second power mechanism arranged on the base, a second rotating rod is fixedly connected to the output shaft of the second power mechanism, and a second connecting rod is provided between the second rotating rod and the base, which is hinged to the two and can pull the base to move forward and backward when the second rotating rod rotates.

[0017] Compared with the prior art, the present invention has the following advantages: the first drive plate and the second drive plate of the present invention intersect with each other and are both rotatably connected relative to the movable seat, the third drive plate and the fourth drive plate intersect with each other and are both rotatably connected relative to the base, and the first drive plate is hinged to the third drive plate, and the second drive plate is hinged to the fourth drive plate, so when the first drive plate, the second drive plate, the third drive plate and the fourth drive plate rotate relative to each other, the first drive plate, the second drive plate, the third drive plate and the fourth drive plate can be folded or unfolded with each other, and when folded with each other, the movable seat moves closer to the base and moves downward. When the second and third driving plates are lowered, the movable seat moves away from the base and rises when they are unfolded. More importantly, a fifth driving plate is provided between the second driving plate and the third driving plate, which is hinged to the two plates. A sixth driving plate is also provided between the second driving plate and the third driving plate, which is hinged to the two plates and spaced from the fifth driving plate. The arrangement of the fifth driving plate and the sixth driving plate makes the mutual folding or unfolding movements of the first driving plate, the second driving plate, the third driving plate and the fourth driving plate very smooth, so that the supporting frame of the movable seat and the baby rocking chair frame can be raised and lowered smoothly without shaking, ensuring that the infant can be effectively comforted.

Brief Description of the Drawings

[0018] Figure 1 This is a three-dimensional diagram of the lifting structure of the utility model;

[0019] Figure 2 This is a side view of the lifting structure of the utility model;

[0020] Figure 3 This is one of the three-dimensional diagrams of the components of the lifting structure of the utility model;

[0021] Figure 4 This is one of the exploded views of the components of the lifting structure of the utility model;

[0022] Figure 5 This is the second three-dimensional diagram of the components of the lifting structure of the utility model;

[0023] Figure 6 This is the second exploded view of the lifting structure of the utility model;

[0024] Figure 7 This is one of the three-dimensional diagrams of the components of the baby rocking chair frame of the present invention;

[0025] Figure 8 This is the second three-dimensional diagram of the components of the baby rocking chair frame of the present invention;

[0026] Figure 9 It is an exploded view of the components of the baby rocking chair frame of the present invention;

[0027] Figure 10 It is a three-dimensional diagram of the baby rocking chair frame of the present invention. [Specific implementation method]

[0028] The present invention will be further described below with reference to the accompanying drawings:

[0029] like Figures 1 to 6 as well as Figure 10 As shown, a lifting structure 10 includes a base 2, a movable seat 3 is provided above the base 2, and at least one group of transmission components 1 that can drive the movable seat 3 to rise and fall relative to the base 2 is provided between the movable seat 3 and the base 2. The transmission component 1 includes a first drive plate 11 and a second drive plate 12 that are arranged crosswise with each other, and a third drive plate 13 and a fourth drive plate 14 that are arranged crosswise with each other. The upper end of the first drive plate 11 is hinged to the movable seat 3 around the first axis A, and the lower end of the first drive plate 11 is hinged to the upper end of the third drive plate 13 around the second axis B. The lower end of the third drive plate 13 is hinged to the base 2 around the third axis C, the upper end of the second drive plate 12 is hinged to the movable seat 3 around the fourth axis D, the lower end of the second drive plate 12 is hinged to the upper end of the fourth drive plate 14 around the fifth axis E, the lower end of the fourth drive plate 14 is hinged to the base 2 around the sixth axis F, a fifth drive plate 15 is provided between the second drive plate 12 and the third drive plate 13, and a sixth drive plate 16 is also provided between the second drive plate 12 and the third drive plate 13, which is hinged to the second drive plate 12 and the third drive plate 13 and spaced apart from the fifth drive plate 15. When the first driving piece 11, the second driving piece 12, the third driving piece 13 and the fourth driving piece 14 rotate relative to each other, the first driving piece 11, the second driving piece 12, the third driving piece 13 and the fourth driving piece 14 can be folded or unfolded with each other. When folding with each other, the movable seat 3 moves closer to the base 2 and descends, and when unfolding with each other, the movable seat 3 moves away from the base 2 and rises. More importantly, a fifth driving piece 15 is provided between the second driving piece 12 and the third driving piece 13, which is hinged to the two. A sixth driving piece 16 is also provided between the second driving piece 12 and the third driving piece 13, which is hinged to the two and spaced apart from the fifth driving piece 15, so that the mutual folding or mutual unfolding movement of the first driving piece 11, the second driving piece 12, the third driving piece 13 and the fourth driving piece 14 is very smooth, so that the movable seat 3 and the supporting frame 9 of the baby rocking chair frame can be raised and lowered smoothly without swinging, ensuring safety and comfort, and can effectively soothe infants and young children.

[0030] like Figure 2 As shown, the first drive plate 11 and the fourth drive plate 14 are parallel to each other, the second drive plate 12 and the third drive plate 13 are parallel to each other, and the fifth drive plate 15 and the sixth drive plate 16 are parallel to each other, thereby ensuring that the movable seat 3 can be raised and lowered smoothly and reliably without swinging.

[0031] like Figure 2As shown, the upper end of the fifth drive plate 15 is hinged to the middle part of the second drive plate 12 around the seventh axis G, the lower end of the fifth drive plate 15 is coaxially hinged to the first drive plate 11 and the third drive plate 13 around the second axis B, the lower end of the sixth drive plate 16 is hinged to the middle part of the third drive plate 13 around the eighth axis H, and the upper end of the sixth drive plate 16 is coaxially hinged to the second drive plate 12 and the fourth drive plate 14 around the fifth axis E, ensuring that the entire lifting structure 10 is compact in structure, the lifting is smooth, and uncontrollable shaking is avoided.

[0032] like Figures 3 to 6 As shown, the base 2 is further provided with a first power mechanism 4. The output shaft 4a of the first power mechanism 4 is fixedly connected to a first rotating rod 6. A first connecting rod 17 is connected between the first driving plate 11 and the first rotating rod 6 so as to be rotatable relative to the first driving plate 11. When the output shaft 4a rotates, the first rotating rod 6 is driven to rotate, thereby driving the first driving plate 11 up and down through the first connecting rod 17. This causes the first driving plate 11, the second driving plate 12, the third driving plate 13, and the fourth driving plate 14 to fold or unfold relative to each other, thereby ensuring the lifting and lowering movement of the movable seat 3.

[0033] like Figures 1 to 3 As shown, the transmission assemblies 1 are provided in two sets, spaced apart from each other, on the base 2. A connecting base 5, fixedly connected to the first drive plates 11 of both sets, is provided between the two transmission assemblies 1. One end of the first connecting rod 17 of each transmission assembly 1 is hinged to the connecting base 5, and the other end is hinged to the corresponding first rotating rod 6. The two transmission assemblies 1 are provided on either side of the base 2, and the first drive plates 11 on both sides are connected by the connecting base 5, so that the transmission assemblies 1 on both sides move synchronously, ensuring smooth lifting and lowering of the movable base 3.

[0034] like Figure 1 、 Figure 5 and Figure 6As shown, the first power mechanism 4 includes a first motor 41 and a first reducer 42 connected to the base 2, the output shaft of the first motor 41 is arranged downward, and the input shaft of the first reducer 42 is arranged downward, the first motor 41 is connected to a first pulley 43, and the first reducer 42 is connected to a second pulley 44, and the first pulley 43 and the second pulley 44 are connected by a belt (not shown in the figure), and the first reducer 42 includes a housing 421, a worm 422 is provided in the housing 421, the worm 422 is connected to the second pulley 44, and the housing 421 is also provided with a worm wheel 423 cooperating with the worm wheel 422 and a driving gear 424 rotating coaxially with the worm wheel 423, a driven gear 425 is meshed with the driving gear 424, and the shaft 425a of the driven gear 425 extends out of the housing 421 and is connected to the first rotating rod 6 at both ends thereof. When the first motor 41 is started, the first pulley 43 rotates the second pulley 44 via the belt, thereby driving the worm 422 to rotate. The worm 422 then drives the driving gear 424 to rotate through the worm wheel 423 meshing with it, thereby driving the driven gear 425 to rotate. The shaft 425a of the driven gear 425 extends outside the housing 421 and is connected to the corresponding first rotating rod 6, so that the first rotating rod 6 can rotate and drive the first connecting rod 17 to move, ultimately achieving the movement of the transmission assembly 1, so that the movable seat 3 is raised and lowered. The entire first power mechanism 4 has a compact structure. The first speed reducer 42 reduces the speed of the movable seat 3 so that the lifting speed is at an appropriate state, which meets the requirements of soothing the infant. In addition, the output shaft of the first motor 41 and the input shaft of the first speed reducer 42 are both arranged downward, so that when the lifting structure 10 is assembled with the base 7 to assemble the baby rocking chair frame, the baby rocking chair frame can be ensured to have a compact structure and a small size, reducing the space occupied.

[0035] like Figures 1 to 10 As shown, a baby rocking chair frame includes a base 7, on which is provided the aforementioned lifting structure 10. The base 7 is further provided with a drive structure 8 capable of driving the lifting structure 10 to move forward and backward relative to the base 7. The movable seat 3 is connected to a support frame 9 that supports the rocking chair seat. After the seat is mounted on the support frame 9, the infant can lie in the seat, and the drive mechanism 9 drives the lifting structure 10 to move forward and backward. During this process, the first power mechanism 41 drives the transmission assembly 1 to operate, thereby causing the movable seat 3 to rise and fall, and the movable seat 3 drives the support frame 9 to rise and fall. Therefore, the support frame 9 can achieve forward and backward movement and simultaneously achieve up and down lifting, which can effectively soothe the infant, coax the infant to sleep, or provide a place for the infant to play.

[0036] like Figure 8 and Figure 9As shown, the drive structure 8 includes a second power mechanism 81 disposed on the base 7. A second rotating rod 82 is fixedly connected to the output shaft of the second power mechanism 81. A second connecting rod 83 is hingedly connected to the second rotating rod 82 and the base 2, and can pull the base 2 to move forward and backward when the second rotating rod 82 rotates. When the output shaft of the second power mechanism 81 drives the second rotating rod 82 to rotate, the second connecting rod 83 pulls the base 2 to move forward and backward, thereby causing the support frame 3 to move in the forward and backward direction. The entire drive structure 8 is simple and reliable.

[0037] like Figure 1 , Figure 8 and Figure 9 As shown, the base 7 is provided with a slide groove 71 along the front-to-back direction, the base 2 is provided with a roller 72 that cooperates with the slide groove 71, and the base 7 is also provided with a guide rod 73. The base 2 is passed through the guide rod 73 and can slide along the guide rod 73, so that the base 2 moves forward and backward smoothly.

[0038] The embodiment is described in detail above with reference to the accompanying drawings, but the present invention is not limited to the above embodiment. Various changes can be made within the knowledge of ordinary technicians in the technical field without departing from the present invention.

Claims

1. A lifting structure (10), characterized in that: The invention comprises a base (2), a movable seat (3) is provided above the base (2), at least one transmission assembly (1) is provided between the movable seat (3) and the base (2) and can drive the movable seat (3) to rise and fall relative to the base (2), the transmission assembly (1) comprises a first drive plate (11) and a second drive plate (12) arranged crosswise with each other, and a third drive plate (13) and a fourth drive plate (14) arranged crosswise with each other, the upper end of the first drive plate (11) is hinged to the movable seat (3) around a first axis (A), the lower end of the first drive plate (11) is hinged to the upper end of the third drive plate (13) around a second axis (B), the lower end of the third drive plate (13) is hinged to the base (2) around a third axis (C), the upper end of the second drive plate (12) is hinged to the movable seat (3) around a fourth axis (D ), the lower end of the second drive plate (12) and the upper end of the fourth drive plate (14) are hinged around the fifth axis (E), the lower end of the fourth drive plate (14) and the base (2) are hinged around the sixth axis (F), a fifth drive plate (15) hinged to the second drive plate (12) and the third drive plate (13) is provided between the second drive plate (12) and the third drive plate (13), a sixth drive plate (16) hinged to the second drive plate (12) and the third drive plate (13) and spaced apart from the fifth drive plate (15), a first power mechanism (4) is also provided on the base (2), the output shaft (4a) of the first power mechanism (4) is fixedly connected to the first rotating rod (6), and a first connecting rod (17) that can rotate relative to the first drive plate (11) and the first rotating rod (6) is connected between the first drive plate (11) and the first rotating rod (6).

2. The lifting structure (10) according to claim 1, characterized in that: The first drive plate (11) and the fourth drive plate (14) are parallel to each other, the second drive plate (12) and the third drive plate (13) are parallel to each other, and the fifth drive plate (15) and the sixth drive plate (16) are parallel to each other.

3. The lifting structure (10) according to claim 1, characterized in that: The upper end of the fifth drive plate (15) is hinged to the middle of the second drive plate (12) around the seventh axis (G), and the lower end of the fifth drive plate (15) is coaxially hinged to the first drive plate (11) and the third drive plate (13) around the second axis (B).

4. The lifting structure (10) according to claim 3, characterized in that: The lower end of the sixth drive plate (16) is hinged to the middle of the third drive plate (13) around the eighth axis (H), and the upper end of the sixth drive plate (16) is coaxially hinged to the second drive plate (12) and the fourth drive plate (14) around the fifth axis (E).

5. The lifting structure (10) according to claim 1, characterized in that: The transmission components (1) are provided in two groups and are spaced apart from each other on a base (2). A connecting seat (5) fixedly connected to the first drive plates (11) of the two groups is provided between the two groups of transmission components (1). One end of the first connecting rod (17) of each group of transmission components (1) is hinged on the connecting seat (5), and the other end is hinged on the corresponding first rotating rod (6).

6. The lifting structure (10) according to claim 5, characterized in that: The first power mechanism (4) includes a first motor (41) and a first reducer (42) connected to the base (2), the output shaft of the first motor (41) is arranged downward, the input shaft of the first reducer (42) is arranged downward, the first motor (41) is connected to a first pulley (43), the first reducer (42) is connected to a second pulley (44), and the first pulley (43) and the second pulley (44) are connected by a belt.

7. The lifting structure (10) according to claim 6, characterized in that: The first speed reducer (42) includes a housing (421), a worm (422) is provided in the housing (421), the worm (422) is connected to the second pulley (44), and the housing (421) is also provided with a worm wheel (423) matched with the worm wheel (422) and a driving gear (424) coaxially rotating with the worm wheel (423), a driven gear (425) is meshed with the driving gear (424), and the shaft (425a) of the driven gear (425) extends out of the housing (421) and is connected to the first rotating rods (6) at both ends thereof.

8. A baby rocking chair frame, characterized by: The invention comprises a base (7), wherein the base (7) is provided with a lifting structure (10) as described in any one of claims 1 to 7, and the base (7) is also provided with a driving structure (8) capable of driving the lifting structure (10) to move forward and backward relative to the base (7), and the movable seat (3) is connected to a supporting frame (9) supporting the rocking chair seat.

9. The baby rocking chair frame according to claim 8, characterized in that: The driving structure (8) includes a second power mechanism (81) provided on the base (7), a second rotating rod (82) is fixedly connected to the output shaft of the second power mechanism (81), and a second connecting rod (83) is provided between the second rotating rod (82) and the base (2), which is hinged to the second rotating rod (82) and can pull the base (2) to move forward and backward when the second rotating rod (82) rotates.

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