Simple electric sofa iron stand with rotating function

Abstract

The utility model discloses a simple electric sofa iron stand with a rotating function. The simple electric sofa iron stand with the rotating function comprises a rotatable base, a pair of stretching assemblies are arranged on the rotatable base, each stretching assembly comprises a seat mechanism, each seat mechanism comprises a mounting plate fixedly connected with the rotatable base, a front rotating part is pivoted to the front end of each mounting plate, and a first side connecting rod is pivoted to the other end of each front rotating part; a seat mounting plate is pivoted to the middle of the first side connecting rod, a leg mechanism is arranged on the front side of the seat mounting plate, a backrest mechanism is arranged on the rear side of the seat mounting plate and comprises a backrest mounting plate, the rear portion of the backrest mounting plate is movably connected with the mounting plate through a rear rotating part, and the rear rotating part is movably connected with the leg mechanism through a second side connecting rod. The middle part of the backrest mounting plate is pivoted to the rear part of the seat mounting plate; and a tension spring is arranged between the front part of the backrest mounting plate and the mounting plate. The utility model solves the problem that the disorder phenomenon is easy to occur in the prior art.

Description

A simple electric rotating sofa frame Technical Field

[0001] This utility model relates to the field of home furnishing manufacturing, and in particular to a simple electric rotating sofa frame. Background Technology

[0002] The extension components of a functional sofa frame include a seat mechanism, a leg mechanism, and a backrest mechanism. When the legs are extended, the sofa enters a relaxed position; then, by extending the backrest mechanism, the sofa enters a reclining position, thus meeting the user's needs. However, when transitioning from a reclining to a relaxed position, the leg mechanism tends to retract first, causing a disorganized transition. Summary of the Invention

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a simple electric rotating function sofa frame that can eliminate disorder phenomenon.

[0004] To achieve the above objectives, the technical solution adopted by the simple electric rotating function sofa frame of this utility model is as follows:

[0005] A simple electric rotating sofa frame includes a rotatable base with a pair of extension components on it. A drive mechanism is provided between the two extension components to drive them to unfold or retract. Each extension component includes a seat mechanism, which includes a mounting plate fixedly connected to the rotatable base. A front rotating member is pivotally connected to the front end of the mounting plate, and a side connecting rod is pivotally connected to the other end of the front rotating member. A seat mounting plate is pivotally connected to the middle of the side connecting rod. A leg mechanism is provided on the front side of the seat mounting plate, and a backrest mechanism is provided on the rear side of the seat mounting plate. The backrest mechanism includes a backrest mounting plate, the rear of which is movably connected to the mounting plate via a rear rotating member. The rear rotating member is movably connected to the leg mechanism via a second side connecting rod. The middle of the backrest mounting plate is pivotally connected to the rear of the seat mounting plate, and the front of the backrest mounting plate is movably connected to the first side connecting rod via a rivet. The first side connecting rod has an elongated hole for the rivet to slide through. A tension spring is provided between the front of the backrest mounting plate and the mounting plate.

[0006] Preferably, the rotatable base includes a base frame, a turntable is provided on the top of the base frame, a support frame is provided on the top of the turntable, and extension components are installed on both sides of the support frame.

[0007] Preferably, the leg mechanism includes a leg link one and a leg link two pivotally connected to the front side of the seat mounting plate. The front end of the leg link one is pivotally connected to a leg link three. The rear end of the leg link two is pivotally connected to a side link two. The front end of the leg link two is pivotally connected to a leg link four. The rear end of the leg link four is pivotally connected to the front end of the leg link one. The middle of the leg links three and four is pivotally connected to a small footrest mounting plate. The front ends of the leg links three and four are pivotally connected to a footrest link one. The front end of the footrest link one is pivotally connected to a footrest link two. The top of the footrest link two is provided with a large footrest mounting plate. The front end of the footrest link two has an arc-shaped hole, and a rivet two fixedly connected to the footrest link one is provided in the arc-shaped hole.

[0008] Preferably, the driving mechanism includes a front support rod, with both ends of the front support rod fixed to the middle of the leg connecting rod. A motor with a guide rail is hinged to the middle of the front support rod, and a slider is provided on the guide rail. A rear support rod is fixed to the slider. Bending pieces are fixed to both ends of the rear support rod, and a driving link is pivotally connected to the bending pieces. The other end of the driving link is pivotally connected to the side connecting rod. A limit link is pivotally connected to the middle of the driving link, and the other end of the limit link is pivotally connected to the mounting plate.

[0009] Preferably, the leg link four is provided with a first limiting pin, and the leg link one has a first limiting surface and a second limiting surface that cooperate with the first limiting pin.

[0010] Preferably, the seat mounting plate is provided with a second limiting pin, and the side connecting rod is provided with a third limiting surface that cooperates with the second limiting pin.

[0011] Compared with the prior art, this utility model has the following advantages:

[0012] A tension spring is installed between the front of the backrest mounting plate and the mounting plate itself. When transitioning from a sitting to a relaxed posture, the tension spring prevents the backrest mechanism from opening; when transitioning from a reclining to a relaxed posture, the tension spring pulls the backrest mounting plate to rotate first, ensuring the backrest mechanism retracts first. This eliminates the disordered phenomenon that easily occurs when functional sofas transition between three postures, improving product quality. A rotatable base is also used, allowing for easy adjustment of the user's orientation and enhancing convenience. Attached Figure Description

[0013] Figure 1 is a structural schematic diagram of the simple electric rotating function sofa frame of this utility model.

[0014] Figure 2 shows the lying position of the extension component.

[0015] Figure 3 shows the relaxed posture of the extended component.

[0016] Figure 4 shows the seated posture of the extension component.

[0017] Figure 5 is a schematic diagram of the leg mechanism.

[0018] Figure 6 is a schematic diagram of the drive mechanism.

[0019] Figure 7 is a schematic diagram of the rotatable base.

[0020] The components include: 1. Rotatable base; 11. Base frame; 12. Turntable; 13. Support frame; 2. Extension assembly; 21. Seat mechanism; 211. Mounting plate; 2111. Second hook pin; 212. Front rotating component; 213. Side connecting rod one; 2131. Third limiting surface; 2132. Elongated hole; 214. Seat mounting plate; 2141. Second limiting pin; 22. Leg mechanism; 221. Leg connecting rod one; 2211. First limiting surface; 2212. Second limiting surface; 222. Leg connecting rod two; 223. Leg connecting rod three; 224. Leg connecting rod four. 2241 First limiting pin, 225 Small footrest assembly plate, 226 Footrest connecting rod one, 2261 Rivet two, 227 Footrest connecting rod two, 2271 Arc-shaped hole, 228 Large footrest assembly plate, 23 Backrest mechanism, 231 Backrest mounting plate, 2311 Rivet one, 2312 First hanging pin, 232 Rear rotating component, 233 Side connecting rod two, 234 Tension spring, 3 Drive mechanism, 31 Front support rod, 32 Guide rail, 33 Motor, 34 Slider, 35 Rear support rod, 36 Bending component, 37 Drive connecting rod, 38 Limiting connecting rod. Detailed Implementation

[0021] The present invention will be further illustrated below with reference to the accompanying drawings and specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention. After reading the present invention, any modifications of the present invention in various equivalent forms by those skilled in the art will fall within the scope defined by the appended claims.

[0022] As shown in Figures 1-7, a simple electric rotating sofa frame includes a rotatable base 1, which includes a base frame 11. A turntable 12 is mounted on the top of the base frame, and a support frame 13 is mounted on the top of the turntable. Extension components 2 are mounted on both sides of the support frame. Each extension component includes a seat mechanism 21, which includes a mounting plate 211 fixedly connected to the support frame. A front rotating member 212 is pivotally connected to the front end of the mounting plate, and a side connecting rod 213 is pivotally connected to the other end of the front rotating member. A seat mounting plate 214 is pivotally connected to the middle of the side connecting rod 214. A second limiting pin 2141 is mounted on the seat mounting plate. A third limiting surface 2131 that cooperates with the second limiting pin is provided on the side connecting rod 214. A leg mechanism 2 is mounted on the front side of the seat mounting plate. 2. The leg mechanism includes leg link 1 221 and leg link 222 pivotally connected to the front side of the seat mounting plate. The front end of leg link 1 is pivotally connected to leg link 3 223, the front part of leg link 2 is pivotally connected to leg link 4 224, the rear part of leg link 4 is pivotally connected to the front part of leg link 1, a first limiting pin 2241 is installed in the middle of leg link 4, and leg link 1 has a first limiting surface 2211 and a second limiting surface 2212 that cooperate with the first limiting pin. The middle parts of leg links 3 and 4 are simultaneously pivotally connected to a small footrest mounting plate 225, the front parts of leg links 3 and 4 are simultaneously pivotally connected to footrest link 1 226, the front end of footrest link 1 is pivotally connected to footrest link 227, and footrest link 2... A large footrest mounting plate 228 is installed on the top. An arc-shaped hole 2271 is opened at the front of the footrest link 2, and a second rivet 2261, which is fixed to the first footrest link, is inserted into the arc-shaped hole. A backrest mechanism 23 is installed on the rear side of the seat mounting plate. The backrest mechanism includes a backrest mounting plate 231. The rear part of the backrest mounting plate is movably connected to the mounting plate through a rear rotating member 232. The rear rotating member is movably connected to the leg mechanism through a second side link 233. The front end of the second side link 2 is pivotally connected to the second leg link 2, and the rear end of the second side link 2 is pivotally connected to the rear rotating member. The middle part of the backrest mounting plate is pivotally connected to the rear part of the seat mounting plate. The front part of the backrest mounting plate is movably connected to the first side link 1 through a first rivet 2311. The first side link 1 has a first rivet. The sliding elongated hole 2132, the front part of the backrest mounting plate is equipped with a first hook pin 2312, the rear part of the mounting plate is equipped with a second hook pin 2111, the first and second hook pins are equipped with a tension spring 234, the two extension components are equipped with a drive mechanism 3, the drive mechanism includes a front support rod 31, the two ends of the front support rod are fixed to the middle of the leg connecting rod, the middle of the front support rod is hinged to a motor 33 with a guide rail 32, a slider 34 is installed on the guide rail, the slider is fixed to a rear support rod 35, the two ends of the rear support rod are fixed to a bending piece 36, the bending piece is pivotally connected to a drive connecting rod 37, the other end of the drive connecting rod is pivotally connected to a side connecting rod, the middle of the drive connecting rod is pivotally connected to a limiting connecting rod 38, the other end of the limiting connecting rod is pivotally connected to the mounting plate.

[0023] The specific working process and principle of this utility model of a simple electric rotating sofa frame:

[0024] When transitioning from a seated to a relaxed posture, the motor is activated, causing relative movement between the guide rail and the slider. The front support rod drives the leg mechanism to gradually unfold, and the first limit pin disengages from the first limit surface. The second leg linkage drives the rear rotating component to rotate via the second side linkage. At this time, under the action of the tension spring, the backrest mounting plate will not rotate with the rear rotating component, thus ensuring that the backrest will not tilt backward during the leg opening process. When the first limit pin contacts the second limit surface, the leg mechanism is fully unfolded.

[0025] When transitioning from a relaxed to a reclining position, the motor is restarted, the leg mechanism causes the seat mounting plate to tilt upwards, the second limit pin disengages from the third limit surface, the seat mounting plate causes the side linkage to rotate, the rear of the side linkage tilts upwards and simultaneously causes the backrest mounting plate to flip backwards, while the tension spring is stretched.

[0026] When changing from a reclining to a relaxed position, the operation is reversed. At this time, under the action of the tension spring, the backrest mounting plate will return to its original position first to prevent the leg mechanism from retracting.

[0027] When transitioning from a relaxed to a sitting position, the leg mechanism resets. If a hand gets caught in the leg at this time, the second footrest linkage will cause the large footrest to flip outward, thus preventing hand injury and eliminating the safety hazard.

[0028] This invention eliminates the disordered movement that easily occurs when the sofa frame changes positions during three-posture transitions by incorporating a tension spring between the backrest mounting plate and the mounting plate, thus improving product quality. It also uses a rotatable base, allowing for easy adjustment of the user's orientation and enhancing convenience.

Claims

1. A simple electric rotating sofa frame, characterized in that: The device includes a rotatable base with a pair of extension components. A drive mechanism is located between the two extension components to drive the extension components to unfold or retract. Each extension component includes a seat mechanism, which includes a mounting plate fixedly connected to the rotatable base. A front rotating member is pivotally connected to the front end of the mounting plate, and a side connecting rod is pivotally connected to the other end of the front rotating member. A seat mounting plate is pivotally connected to the middle of the side connecting rod. A leg mechanism is located on the front side of the seat mounting plate, and a backrest mechanism is located on the rear side of the seat mounting plate. The backrest mechanism includes a backrest mounting plate, the rear of which is movably connected to the mounting plate via a rear rotating member. The rear rotating member is movably connected to the leg mechanism via a second side connecting rod. The middle of the backrest mounting plate is pivotally connected to the rear of the seat mounting plate, and the front of the backrest mounting plate is movably connected to the first side connecting rod via a rivet. The first side connecting rod has an elongated hole for the rivet to slide through. A tension spring is located between the front of the backrest mounting plate and the mounting plate.

2. The simple electric rotating sofa frame according to claim 1, characterized in that: The rotatable base includes a base frame, a turntable is provided on the top of the base frame, a support frame is provided on the top of the turntable, and extension components are installed on both sides of the support frame.

3. The simple electric rotating sofa frame according to claim 1, characterized in that: The leg mechanism includes a leg link 1 and a leg link 2 pivotally connected to the front side of the seat mounting plate. The front end of the leg link 1 is pivotally connected to a leg link 3. The rear end of the leg link 2 is pivotally connected to a side link 2. The front end of the leg link 2 is pivotally connected to a leg link 4. The rear end of the leg link 4 is pivotally connected to the front end of the leg link 1. The middle of the leg links 3 and 4 is pivotally connected to a small footrest mounting plate. The front ends of the leg links 3 and 4 are pivotally connected to a footrest link 1. The front end of the footrest link 1 is pivotally connected to a footrest link 2. The top of the footrest link 2 is provided with a large footrest mounting plate. The front end of the footrest link 2 has an arc-shaped hole, and a rivet 2 fixed to the footrest link 1 is provided in the arc-shaped hole.

4. The simple electric rotating sofa frame according to claim 3, characterized in that: The drive mechanism includes a front support rod, with both ends of the front support rod fixed to the middle of the leg connecting rod. A motor with a guide rail is hinged to the middle of the front support rod, and a slider is provided on the guide rail. A rear support rod is fixed to the slider. Bending pieces are fixed to both ends of the rear support rod, and a drive connecting rod is pivotally connected to the bending pieces. The other end of the drive connecting rod is pivotally connected to the side connecting rod. A limit connecting rod is pivotally connected to the middle of the drive connecting rod, and the other end of the limit connecting rod is pivotally connected to the mounting plate.

5. The simple electric rotating sofa frame according to claim 3, characterized in that: The leg link four is provided with a first limiting pin, and the leg link one has a first limiting surface and a second limiting surface that cooperate with the first limiting pin.

6. The simple electric rotating sofa frame according to claim 1, characterized in that: The seat mounting plate is provided with a second limiting pin, and the side connecting rod has a third limiting surface that cooperates with the second limiting pin.

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