An electrically powered rocking chair frame

Abstract

The utility model relates to an electric rocking chair frame, it includes: the seat rests on the frame, the chassis and the electric push rod, the seat rests on the frame and is positioned above the chassis, under the drive of electric push rod, the seat rests on the frame can change angle relative to the chassis, and completes the continuous change between the sitting posture and the lying posture, wherein: the seat rests on the frame is rotatablely positioned on the prop of the chassis through the hinge shaft at the corner of the seat cushion part and the backrest part connection, one end of electric push rod is hinged in the front of the seat cushion part, the other end is hinged in the movement fulcrum of the front part of the chassis, and the movement fulcrum is driven and supported by the power mechanism arranged in the chassis, the power mechanism can drive the reciprocating motion of the movement fulcrum, and the seat rests on the frame is driven to swing reciprocatingly around the hinge shaft through electric push rod.

Description

Technical Field

[0001] This utility model belongs to the field of rocking chair technology, and specifically relates to an electric rocking chair frame, especially a solution that can be adjusted for sitting and lying down, and can also rock back and forth. Background Technology

[0002] Currently, rocking chairs and massage chairs fall into two distinct categories. Most rocking chairs are passive, requiring manual assistance to rock, and their seating / reclining angles are not adjustable. Massage chairs, on the other hand, have an active structure and adjustable angles to allow for continuous changes in sitting and reclining positions, although the adjustment movements are relatively limited. Massage chairs have a more complex structure, with various massage devices mounted on a base frame, along with soft padding and a cover, forming a complete and comfortable unit. A massage chair frame generally includes: a seat / backrest, a base frame, and an electric actuator, as well as a leg rest hinged to the front of the seat / backrest. Tracks can also be installed on the seat / backrest to allow the massage mechanisms to move up and down, enabling a wide range of massage movements. Driven by the electric actuator, the seat / backrest and leg rest can adjust their angle relative to the base frame, allowing for continuous changes between sitting and reclining positions. The leg rest can also be controlled to adjust synchronously, gradually rising to be flush with the seat cushion when shifting to a reclining position. This is the general function of current massage chair frames: besides adjusting seating / reclining positions and supporting massage devices, they offer no other functionalities.

[0003] The object of this utility model research is to provide a more reasonable technical solution that integrates the functions of a rocking chair. Summary of the Invention

[0004] The purpose of this invention is to design an electric rocking chair frame with an adjustable seat and backrest relative to the base frame, allowing for angle adjustment and reciprocating motion.

[0005] The present invention is implemented as follows: an electric rocking chair frame includes a seat and backrest, a base frame, and an electric push rod; the seat and backrest are positioned above the base frame, and under the drive of the electric push rod, the seat and backrest can change angle relative to the base frame, and complete the continuous change between sitting and reclining postures; the seat and backrest have a seat cushion and a backrest, which are connected to each other and are rotatably positioned on the support of the base frame at the corner of the connection via a hinge; one end of the electric push rod is hinged to the front edge of the seat cushion and the other end is hinged to a motion fulcrum at the front of the base frame, which is driven and supported by a power mechanism set in the base frame. The power mechanism can drive the motion fulcrum to reciprocate and drive the seat and backrest to swing back and forth around the hinge via the electric push rod.

[0006] The power mechanism includes a motor fixed on the base frame and a reduction gear connected to the motor drive, as well as an offset shaft output by the reduction gear; the motion fulcrum is driven and supported by the offset shaft, which has the following structure: 1. A long slot, the suspended end of which is sleeved on the offset shaft and the other end is movably hinged to the base frame, allowing the long slot to swing up and down with the offset shaft, and an electric push rod is hinged to the suspended end of the long slot; 2. A double-hole connecting rod, one end of which is sleeved on the offset shaft and the other end is hinged to the electric push rod; 3. A bushing with a handle, the bushing end is sleeved on the offset shaft and the handle end is fixed to the electric push rod.

[0007] The offset shaft has the following three options: 1. It is set at the eccentric position of the last stage gear of the reduction gear; 2. It is set at the eccentric position of a turntable, which is locked on the shaft of the last stage gear of the reduction gear; 3. It is a crankshaft on the last stage gear of the reduction gear.

[0008] The long groove is an inverted groove or a long slot hole, and its length is equivalent to the rotation radius of the offset shaft. It is hinged to the base frame by welded steel pipe sections. The steel pipe section is a rectangular or triangular structure with two pipes side by side.

[0009] The seat and backrest frame has the following three structures: 1. Integrated frame: The seat and backrest frame includes two integrated L-shaped rails and crossbeams connecting the two L-shaped rails, with two or more crossbeams distributed and welded between the two L-shaped rails; 2. Separate frame: The seat and backrest frame is divided into an independent seat cushion and a backrest. Both the seat cushion and the backrest are frame structures, including straight rails on both sides and crossbeams connecting the straight rails. The backrest is welded to the rear side of the seat cushion; 3. Separate frame: The seat and backrest frame is divided into an independent seat cushion and a backrest. Both the seat cushion and the backrest are frame structures, including straight rails on both sides and crossbeams connecting the straight rails. The backrest is movably hinged to the rear side of the seat cushion, and the included angle is maintained and adjusted by an angled electric push rod.

[0010] A leg support and a swing rod are swayably suspended on the crossbeam at the front edge of the seat cushion of the seat frame. The lower end of the swing rod is provided with a contact wheel that can abut against the back of the leg support. One end of a leg electric push rod is hinged to the middle of the swing rod and the other end is hinged to the crossbeam at the rear of the seat cushion to drive the leg support to rise.

[0011] The rear of the base frame is equipped with two ground-contacting rollers.

[0012] This invention improves upon the design of a flip chair frame, enabling not only seat / reclining angle adjustment but also forward and backward rocking, organically integrating two functions into one. Structurally, a motion fulcrum supports the electric push rod, allowing the electric push rod to follow the positional changes of the motion fulcrum after adjusting the seat / reclining angle, providing structural support for the rocking motion. The motion fulcrum reciprocates under the drive of the power mechanism, which in turn drives the seat / reclining frame to rock back and forth via the electric push rod. The angle adjustment and rocking motion can be selected independently to meet different usage needs. It can serve as the base for a massage chair or be designed as a sofa or car seat. Attached Figure Description

[0013] The present invention will be further described below with reference to specific figures: Figure 1 Diagram of sitting posture for electric rocking chair frame Figure 2 Diagram of reclining position for electric rocking chair frame Figure 3 Diagram showing the forward tilt of an electric rocking chair frame. Figure 4 Diagram showing the backrest posture of an electric rocking chair frame. Figure 5 Diagram of the reclining forward position of an electric rocking chair frame Figure 6 Diagram of the reclining position of an electric rocking chair frame Figure 7 Schematic diagram of the first position of the second fulcrum. Figure 8 Schematic diagram of the second position of the second fulcrum. in 1—Seat frame; 11—Seat cushion; 12—Backrest; 13—L-shaped track; 14—Crossbeam; 2—Base frame; 21—Support column; 22—Roller; 3—Electric actuator; 31—Leg-operated electric actuator; 4—Motion fulcrum; 41—Long groove; 411—Steel pipe section; 42—Double-hole connecting rod; 5—Power mechanism; 51—Motor; 52—Reduction gear; 53—Offset shaft; 6—Legs; 61—Swing bar; 62—Abutting wheel; Detailed Implementation

[0014] The present invention will be further described below with reference to the accompanying drawings. It should be noted that, without conflict, the various embodiments described below or the various technical features can be arbitrarily combined to form new embodiments. These constitute preferred embodiments and should not be used to limit the scope of protection of the present invention. Any non-substantial changes or substitutions are within the scope of protection claimed by the present invention.

[0015] Reference Figures 1 to 6 This example is a massage chair frame, comprising: a seat and backrest 1, a base frame 2, a leg support 6, and an electric push rod 3. The seat and backrest 1 is positioned above the base frame 2. Driven by the electric push rod 3, the seat and backrest 1 can change its angle relative to the base frame 2, enabling continuous changes between sitting and reclining postures. The seat and backrest 1 has a seat cushion 11 and a backrest 12, which are connected to each other and rotatably positioned on the support column 21 of the base frame 2 via a hinge at the connecting corner, allowing for angle adjustment and continuous changes between sitting and reclining postures. One end of the electric push rod 3 is hinged to the front edge of the seat cushion 11, and the other end is hinged to a motion fulcrum 4 at the front of the base frame 2. This motion fulcrum 4 is driven and supported by a power mechanism 5 located on the base frame 2. The power mechanism 5 drives the motion fulcrum 4 to reciprocate, and the electric push rod 3 drives the seat and backrest 1 to reciprocate around the hinge, achieving a rocking function. The extension and retraction of the electric push rod 3 is used to adjust the angle of the seat and backrest 1, facilitating the switching between sitting and reclining positions.

[0016] The power mechanism 5 includes a motor 51, a reduction gear 52, and an offset shaft 53 output from the reduction gear. The motor 51 and the reduction gear 52 are fixed on the base frame, and the eccentrically rotating offset shaft 53 is used to drive and support the motion fulcrum 4. More specifically, the offset shaft 53 has the following three options: First, it is set at the eccentric position of the last gear of the reduction gear 52, such as... Figure 2 The first option is a simple structure where dust covers can be added to the meshing gears. The second option is to position the gearbox on an eccentric turntable, which is locked to the shaft of the final stage gear of the reduction gear 52. This is suitable for standard gearboxes and adds a turntable with an offset shaft. The third option is a design where the crankshaft on the final stage gear of the reduction gear 52 is directly integrated into the gearbox output shaft.

[0017] Motion fulcrum 4 has the following structure: I. For example Figure 2 The long groove 41 has its suspended end fitted onto the offset shaft 53, while the other end is movably hinged to the base frame 2, allowing the long groove 41 to swing up and down with the offset shaft 53. The electric push rod 3 is hinged to the suspended end of the long groove 41. This structure offers the best stability, with one section of the long groove 41 movably hinged to the base frame, forming a triangular support with the electric push rod. In practice, the length of the long groove 41 only needs to be equivalent to the rotation radius of the offset shaft 53, while other parts are extended using steel pipe sections 411. These steel pipe sections 411 can be rectangular or triangular structures with two pipes side by side, increasing the hinge points with the base frame 1 to reduce axial torsion.

[0018] II. Reference Figure 7 and Figure 8The double-hole connecting rod 42 has one end sleeved on the offset shaft 53 and the other end hinged to the electric push rod 3. Both ends of the double-hole connecting rod 42 are movably connected. Under its own weight and the weight of the seat frame 1, the electric push rod 3 always maintains a downward trend, and the offset shaft 53 completes the lifting action of the electric push rod. This structure requires a larger travel space below the reduction gear 52.

[0019] 3. A bushing with a handle, the end of which is fitted onto the offset shaft 53, and the handle end is fixed to the electric push rod 3, such as through a spline or pin-hole fit. Similar to the previous example, except that the handle end is fixed to the electric push rod 3, maintaining a constant included angle during movement, and thus not occupying the travel space at the bottom of the reduction gear 52. Similarly, the bushing with a handle can be omitted, and one end of the electric push rod 3 can be directly movably connected to the offset shaft 53. If the offset shaft 53 is a long shaft, it can directly pass through the shaft hole at one end of the electric push rod, forming a movable positioning. Since both ends of the electric push rod are movable hinges, the angle can be changed at any time during operation.

[0020] As a preferred embodiment, depending on the product's intended use, the seat frame 1 has the following three structures: 1. Integrated frame, the seat and backrest frame 1 includes two integrated L-shaped tracks 13 and crossbeams 14 connecting the two L-shaped tracks. Two or more crossbeams 14 are distributed and welded between the two L-shaped tracks 13 to form a whole. The L-shaped tracks 13 can provide a wide range of massage from top to bottom for the massage mechanism, which is the preferred solution for massage chairs.

[0021] II. Split Frame: The seat and backrest frame 1 is divided into an independent seat cushion section 11 and a backrest section 12. Both the seat cushion section 11 and the backrest section 12 are frame-shaped structures, including straight rails on both sides and crossbeams 14 connecting the straight rails. The backrest section 12 is welded to the rear side of the seat cushion section 11. This structure only divides the seat cushion section 11 and the backrest section 12 into sections, but it remains a stable whole. The seat cushion section 11 and the backrest section 12 can each be equipped with a massage mechanism to form different massage combinations. For example, the seat cushion section 11 can be equipped with a vibrating massage device, while the backrest section 12 can also be equipped with a walking massage mechanism, or two or more different massage devices specifically for neck and waist massage.

[0022] III. Split Frame: The seat and backrest frame 1 is divided into an independent seat cushion 11 and a backrest 12. Both the seat cushion 11 and the backrest 12 are frame-shaped structures, including straight rails on both sides and crossbeams 14 connecting the straight rails. The backrest 12 is movably hinged to the rear side of the seat cushion 11, and the angle between the two is maintained and adjusted by an angled electric push rod. The angle between the seat cushion 11 and the backrest 12 is adjustable, which can meet more personalized designs and achieve a fully flat adjustment.

[0023] like Figures 1 to 6As a massage chair frame, it is generally equipped with a leg support 6. A leg support 6 and a swing rod 61 are swaying and suspended on the crossbeam 14 at the front edge of the seat cushion 11 of the backrest. The lower end of the swing rod 61 is provided with a contact wheel 62 that can abut against the back of the leg support. One end of a leg electric push rod 31 is hinged to the middle of the swing rod 61 and the other end is hinged to the crossbeam 14 at the rear of the seat cushion 11 to drive the leg support 6 to rise.

[0024] In addition, the base frame 2 is equipped with two ground-mounted casters 22 at the rear. The rear casters 22 facilitate movement when the seat cushion 11 is lifted, and can be operated by a single person.

[0025] The illustration uses a massage chair frame as an example. By adding or removing configurations, it can also be designed as a sofa, car seat cushion, or leisure bed, satisfying both sitting and lying adjustment, and realizing a rocking function, which has a relaxing and sleep-aiding effect.

Claims

1. An electric rocking chair frame, comprising: The seat and backrest (1), the base frame (2), and the electric push rod (3) are positioned above the base frame (2). Driven by the electric push rod (3), the seat and backrest (1) can change its angle relative to the base frame (2) and complete the continuous change between sitting and lying postures. The seat and backrest (1) has a seat cushion (11) and a backrest (12), which are connected to each other and can be rotatably positioned on the support column (21) of the base frame (2) at the corner of the connection via a hinge. One end of the electric push rod (3) is hinged to the front edge of the seat cushion (11) and the other end is hinged to the motion fulcrum (4) at the front of the base frame (2). The motion fulcrum (4) is driven and supported by the power mechanism (5) set on the base frame (2). The power mechanism (5) can drive the motion fulcrum (4) to reciprocate and drive the seat and backrest (1) to swing back and forth around the hinge via the electric push rod (3).

2. The electric rocking chair frame according to claim 1, characterized in that: The power mechanism (5) includes a motor (51) fixed on the base frame and a reduction gear (52) connected to the motor drive, as well as an offset shaft (53) output by the reduction gear (52); the motion fulcrum (4) is driven and supported by the offset shaft (53), and has the following structure:

1. Long slot (41), the suspended end of the long slot (41) is sleeved on the offset shaft (53), and the other end is movably hinged on the base frame (2), allowing the long slot (41) to swing up and down with the offset shaft (53), and the electric push rod (3) is hinged to the suspended end of the long slot (41); 2. Double hole connecting rod (42), one end of the double hole connecting rod (42) is sleeved on the offset shaft (53), and the other end is hinged to the electric push rod (3); 3. Handle bushing, the bushing end is sleeved on the offset shaft (53), and the handle end is fixed to the electric push rod (3).

3. The electric rocking chair frame according to claim 2, characterized in that: The offset shaft (53) has the following three options:

1. It is set at the eccentric position of the last gear of the reduction device (52); 2. It is set at the eccentric position of a turntable, which is locked on the shaft of the last gear of the reduction device (52); 3. It is a crank shaft on the last gear of the reduction device (52).

4. An electric rocking chair frame according to claim 2, characterized in that: The long slot (41) is an incline slot or a long slot hole, and its length is comparable to the rotation radius of the offset shaft (53). It is hinged to the base frame by a welded steel pipe section (411). The steel pipe section (411) is a rectangular or triangular structure with two pipes side by side.

5. An electric rocking chair frame according to claim 1, characterized in that: The seat frame (1) has the following three structures:

1. Integrated frame, the seat frame (1) includes two integrated L-shaped rails (13) and crossbeams (14) connecting the two L-shaped rails, with two or more crossbeams (14) distributed and welded between the two L-shaped rails (13); 2. Split frame, the seat frame (1) is divided into an independent seat cushion (11) and backrest (12), both the seat cushion (11) and backrest (12) are frame structures, including straight rails on both sides and connecting The crossbeam (14) of the straight rail, the backrest (12) is welded to the rear side of the seat cushion (11); III. Split frame, the seat and backrest frame (1) is divided into an independent seat cushion (11) and backrest (12), both the seat cushion (11) and the backrest (12) are frame structures, including straight rails on both sides and a crossbeam (14) connecting the straight rails, the backrest (12) is movably hinged to the rear side of the seat cushion (11), and the included angle is maintained and adjusted by an included angle electric push rod.

6. An electric rocking chair frame according to claim 5, characterized in that: A leg support (6) and a swing rod (61) are swayably suspended on the crossbeam (14) at the front edge of the seat cushion (11) of the seat frame (1). The lower end of the swing rod (61) is provided with a contact wheel (62) that can abut against the back of the leg support. One end of a leg electric push rod (31) is hinged to the middle of the swing rod (61) and the other end is hinged to the crossbeam (14) at the rear of the seat cushion (11), driving the leg support (6) to rise.

7. An electric rocking chair frame according to claim 1, characterized in that: The base frame (2) is provided with two ground-facing rollers (22) at the rear.

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