Electric sofa chair support

Abstract

The utility model discloses an electric sofa chair bracket, and relates to the technical field of chairs. The sofa comprises a sofa supporting frame, a motor is installed at the rear end of the sofa supporting frame, and the power output end of the motor is connected with a push rod; the two sides of the sofa supporting frame are respectively connected with a supporting piece, an adjusting frame is movably arranged on each of the two supporting pieces, the two supporting pieces are oppositely arranged, and the two adjusting frames are oppositely arranged; the adjusting frame comprises a chair back supporting plate, a pedal supporting plate, a first transmission rod, a second transmission rod, a third transmission rod, a fourth transmission rod and a fifth transmission rod; the chair back supporting plate is rotationally connected with the rear end of the supporting piece, and the rear end of the first transmission rod is rotationally connected with the lower end of the chair back supporting plate; under the driving action of the motor, the chair back supporting plate and the pedal supporting plate can be folded or unfolded at the same time, and the sofa armrest fixing mechanism is simple in structure, easy to assemble and suitable for a sofa with the sofa armrest position needing to be fixed.

Description

Technical Field

[0001] The utility model relates to the technical field of seats, in particular to an electric sofa chair bracket. Background Art

[0002] A sofa chair usually includes a sofa support frame and components such as a seat, a backrest and a footrest installed on the sofa support frame. In the prior art, the structure of the sofa chair bracket is usually relatively simple and the position is fixed. It is difficult to deform and use it according to the user's needs, resulting in certain limitations in use and bringing inconvenience to people's use.

[0003] Chinese patent document CN116473376A discloses a single-motor-driven electric chair support, including a support beam, a motor mounted on the support beam, and a push rod connected to the power output end of the motor; support plates are fixedly connected to both ends of the support beam, and adjustment frames are movably mounted on the two support plates, and the two support plates are arranged opposite to each other, and the two adjustment frames are arranged opposite to each other; the adjustment frame includes a seat support plate, a backrest support plate, a footrest support plate, a first transmission plate, a second transmission plate, a third transmission plate, a fourth transmission plate, a fifth transmission plate, a sixth transmission plate, a seventh transmission plate, and an eighth transmission plate. The patent can make the backrest support plate and the footrest support plate fold up or open at the same time under the driving action of the motor, and can adjust the position of the seat support plate at the same time during the folding or opening process. However, the patent document CN116473376A still has the following technical problems: First, the adjustment frame of the electric seat bracket needs to be equipped with eight transmission plates to fold or open the backrest support plate and the footrest support plate. The overall structure is relatively complex and the assembly is relatively cumbersome; Second, when the electric seat bracket is driven by the motor, the seat support plate will also move forward and backward, but for a sofa whose armrest position needs to be fixed, the seat support plate does not need to move. Therefore, the electric seat bracket is difficult to apply to a sofa whose armrest position needs to be fixed. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide an electric sofa chair bracket in view of the deficiencies of the above-mentioned prior art. The electric sofa chair bracket can, under the driving action of a motor, simultaneously fold up or open a backrest support plate and a footrest support plate. The electric sofa chair bracket has a relatively simple structure and is relatively easy to assemble. The electric sofa chair bracket is suitable for sofas whose armrest positions need to be fixed.

[0005] In order to solve the above technical problems, the technical solution of the utility model is: an electric sofa chair bracket, including a sofa support frame, a motor is installed on the rear end of the sofa support frame, and a push rod is connected to the power output end of the motor; support members are respectively connected to the two sides of the sofa support frame, and adjustment frames are movably installed on the two support members, and the two support members are arranged opposite to each other, and the two adjustment frames are arranged opposite to each other; the adjustment frame includes a backrest support plate, a footrest support plate, a first transmission rod, a second transmission rod, a third transmission rod, a fourth transmission rod and a fifth transmission rod; the backrest support plate is rotatably connected to the rear end of the support member, and the rear end of the first transmission rod is rotatably connected to the lower end of the backrest support plate; the rear ends of the second transmission rod and the third transmission rod are respectively rotatably connected to the front end of the support member, And the connection point of the third transmission rod on the support member is located in front of the connection point of the second transmission rod on the support member; the front end of the first transmission rod is rotationally connected to the middle part of the second transmission rod, and the front end of the second transmission rod is rotationally connected to the rear end of the fourth transmission rod; the middle part of the fourth transmission rod and the rear end of the fifth transmission rod are rotationally connected to the front end of the third transmission rod respectively, and the connection point of the fifth transmission rod on the third transmission rod is located in front of the connection point of the fourth transmission rod on the third transmission rod; the front end of the fourth transmission rod is rotationally connected to the rear end of the foot support plate, and the front end of the fifth transmission rod is rotationally connected to the front end of the foot support plate; a connecting rod is fixedly connected between the middle parts of the third transmission rods of the two adjustment frames, and the front end of the push rod is connected to the middle part of the connecting rod.

[0006] Preferably, there is a first rotating shaft between the chair back support plate and the support member, a second rotating shaft between the first transmission rod and the chair back support plate, a third rotating shaft between the second transmission rod and the support member, a fourth rotating shaft between the third transmission rod and the support member, a fifth rotating shaft between the first transmission rod and the second transmission rod, a sixth rotating shaft between the second transmission rod and the fourth transmission rod, a seventh rotating shaft between the fourth transmission rod and the third transmission rod, an eighth rotating shaft between the fifth transmission rod and the third transmission rod, a ninth rotating shaft between the fourth transmission rod and the foot support plate, and a tenth rotating shaft between the fifth transmission rod and the foot support plate.

[0007] Preferably, two first connecting plates are provided on the rear end of the sofa support frame, the motor is provided with a connecting head, the connecting head is installed between the two first connecting plates and is rotatably connected to the two first connecting plates, and an eleventh rotating shaft is provided between the connecting head and the first connecting plates; two second connecting plates are provided on the connecting rod, the front end of the push rod is installed between the two second connecting plates and is rotatably connected to the two second connecting plates, and a twelfth rotating shaft is provided between the front end of the push rod and the second connecting plate.

[0008] Preferably, a convex portion protruding forward is provided in the middle of the chair back support plate, the convex portion of the chair back support plate is rotatably connected to the rear end of the support component, and a chair back mounting hole is provided at the upper end of the chair back support plate.

[0009] Preferably, the second transmission rod is in a bent "〈" shape, the fifth rotating shaft is located at the bending position of the second transmission rod, and the front end of the first transmission rod is provided with an "I"-shaped limiting hole, and the fifth rotating shaft is passed through the "I"-shaped limiting hole and can move back and forth within the "I"-shaped limiting hole.

[0010] Preferably, a second limiting column for limiting the end point of the forward movement of the second transmission rod is provided at the front end of the support member.

[0011] Preferably, a footrest support plate bending portion is provided on the footrest support plate, and a plurality of footrest mounting holes are provided on the footrest support plate bending portion.

[0012] The beneficial effect of the utility model is that the utility model can drive the push rod forward or backward through the motor, thereby synchronously driving the backrest support plate, the footrest support plate, the first transmission rod, the second transmission rod, the third transmission rod, the fourth transmission rod and the fifth transmission rod to move in a set manner respectively, so as to realize the synchronous opening or synchronous folding of the footrest support plate and the backrest support plate, and the overall structure is relatively simple and easy to assemble. The driving of the motor is a linear process. The user can control the motor to stop driving at any time according to personal preference, so that the footrest support plate and the backrest support plate stay at any position in the opening or folding process, and the use effect is very good. In the process of synchronous opening or synchronous folding of the footrest support plate and the backrest support plate of the utility model, the sofa support frame and the support members on both sides of the sofa support frame are fixed. Therefore, the utility model is suitable for sofas whose armrest positions need to be fixed. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is one of the overall structural diagrams of the utility model when it is in an open state.

[0014] Figure 2 This is the second overall structural diagram of the utility model when it is in an open state.

[0015] Figure 3 This is the second overall structural diagram of the utility model when it is in a folded state. DETAILED DESCRIPTION

[0016] The structural principle and working principle of the utility model are further described in detail below with reference to the accompanying drawings.

[0017] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear" and the like indicate directions or positional relationships based on the attached Figure 1-3As shown in the orientation or positional relationship, the "front end" of the electric sofa chair bracket refers to the end close to the footrest support plate, and the "rear end" of the electric sofa chair bracket refers to the end close to the backrest support plate. The above terms are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model.

[0018] like Figure 1-Figure 3As shown, the utility model is an electric sofa chair bracket, comprising a sofa support frame 1, a motor 2 is installed on the rear end of the sofa support frame 1, and a push rod 3 is connected to the power output end of the motor 2; the two sides of the sofa support frame 1 are respectively connected to support members 4, and adjustment frames are movably installed on the two support members 4, and the two support members 4 are arranged opposite to each other, and the two adjustment frames are arranged opposite to each other; the adjustment frame comprises a backrest support plate 5, a foot support plate 6, a first transmission rod 7, a second transmission rod 8, a third transmission rod 9, a fourth transmission rod 10 and a fifth transmission rod 11; the backrest support plate 5 is rotatably connected to the rear end of the support member 4, and the rear end of the first transmission rod 7 is rotatably connected to the lower end of the backrest support plate 5; the rear ends of the second transmission rod 8 and the third transmission rod 9 are respectively rotatably connected to the front end of the support member 4, and the connection point of the third transmission rod 9 on the support member 4 is located at the second transmission rod The rod 8 is in front of the connection point on the support member 4; the front end of the first transmission rod 7 is rotationally connected to the middle part of the second transmission rod 8, and the front end of the second transmission rod 8 is rotationally connected to the rear end of the fourth transmission rod 10; the middle part of the fourth transmission rod 10 and the rear end of the fifth transmission rod 11 are respectively rotationally connected to the front end of the third transmission rod 9, and the connection point of the fifth transmission rod 11 on the third transmission rod 9 is located in front of the connection point of the fourth transmission rod 10 on the third transmission rod 9; the front end of the fourth transmission rod 10 is rotationally connected to the rear end of the foot support plate 6, and the front end of the fifth transmission rod 11 is rotationally connected to the front end of the foot support plate 6; a connecting rod 12 is fixedly connected between the middle parts of the third transmission rods 9 of the two adjusting frames, and the front end of the push rod 3 is connected to the middle part of the connecting rod 12, and the driving mode of the motor 2 and the push rod 3 is preferably a traditional worm gear transmission mode. The utility model can drive the push rod forward or backward through the motor, thereby synchronously driving the backrest support plate, the footrest support plate, the first transmission rod, the second transmission rod, the third transmission rod, the fourth transmission rod and the fifth transmission rod to move in a set manner, respectively, so as to realize the synchronous opening or synchronous folding of the footrest support plate and the backrest support plate. The overall structure is relatively simple and easy to assemble. The driving of the motor is a linear process. The user can control the motor to stop driving at any time according to personal preference, so that the footrest support plate and the backrest support plate stay at any position in the opening or folding process, and the use effect is very good. In the process of synchronous opening or synchronous folding of the footrest support plate and the backrest support plate of the utility model, the sofa support frame and the support members on both sides of the sofa support frame are fixed. Therefore, the utility model is suitable for sofas whose armrest positions need to be fixed.

[0019] like Figure 1-Figure 3As shown, there is a first rotating shaft 13 between the seat back support plate 5 and the support member 4, a second rotating shaft 14 between the first transmission rod 7 and the seat back support plate 5, a third rotating shaft 15 between the second transmission rod 8 and the support member 4, a fourth rotating shaft 16 between the third transmission rod 9 and the support member 4, a fifth rotating shaft 17 between the first transmission rod 7 and the second transmission rod 8, a sixth rotating shaft 18 between the second transmission rod 8 and the fourth transmission rod 10, a seventh rotating shaft 19 between the fourth transmission rod 10 and the third transmission rod 9, an eighth rotating shaft 20 between the fifth transmission rod 11 and the third transmission rod 9, a ninth rotating shaft 21 between the fourth transmission rod 10 and the foot support plate 6, and a tenth rotating shaft 22 between the fifth transmission rod 11 and the foot support plate 6.

[0020] like Figure 1-Figure 3 As shown, two first connecting pieces 23 are provided on the rear end of the sofa support frame 1, and the motor 2 is provided with a connecting head 24, which is installed between the two first connecting pieces 23 and rotatably connected to the two first connecting pieces 23, and an eleventh rotating shaft 25 is provided between the connecting head 24 and the first connecting pieces 23; two second connecting pieces 26 are provided on the connecting rod 12, and the front end of the push rod 3 is installed between the two second connecting pieces 26 and rotatably connected to the two second connecting pieces 26, and a twelfth rotating shaft 27 is provided between the front end of the push rod 3 and the second connecting piece 26.

[0021] like Figure 1-Figure 3 As shown, a convex portion 28 protruding forward is provided in the middle of the backrest support plate 5, and the convex portion 28 of the backrest support plate 5 is rotatably connected to the rear end of the support member 4. A backrest mounting hole 29 is provided at the upper end of the backrest support plate 5, and the backrest mounting hole 29 is used to install the backrest of the seat.

[0022] like Figure 1-Figure 3 As shown, the shape of the second transmission rod 8 is a bent "<" shape, the fifth rotating shaft 17 is located at the bent position of the second transmission rod 8, and the front end of the first transmission rod 7 is provided with an "I"-shaped limiting hole 32, and the fifth rotating shaft 17 is passed through the "I"-shaped limiting hole 32 and can move back and forth in the "I"-shaped limiting hole 32. The front end of the support member 4 is provided with a second limiting column 33 for limiting the end point of the forward movement of the second transmission rod 8. Since the moving stroke of the second transmission rod 8 is greater than the moving stroke of the first transmission rod 7, therefore, after the "I"-shaped limiting hole 32 is provided, the utility model can make the second transmission rod 8 move a certain distance before pulling the first transmission rod 7 to move, which perfectly solves the problem of inconsistent moving strokes of the second transmission rod 8 and the first transmission rod 7.

[0023] like Figure 1-Figure 3 As shown, a footrest support plate bending portion is provided on the footrest support plate 6, and a plurality of footrest mounting holes 61 are provided on the footrest support plate bending portion.

[0024] The opening process of the utility model is as follows: the motor 2 drives the push rod 3 to extend forward, the push rod 3 pushes the connecting rod 12 to move forward, the connecting rod 12 pushes the lower end of the third transmission rod 9 to swing forward, and the third transmission rod 9 drives the second transmission rod 8, the fourth transmission rod 10 and the fifth transmission rod 11 to move forward at the same time, so that the footrest support plate 6 is opened forward; while the second transmission rod 8 moves forward, it pulls the first transmission rod 7 to move forward, and the first transmission rod 7 then pulls the lower end of the backrest support plate 5 to move forward, so that the backrest support plate 5 is opened backward. In this opening process, the various components of the two adjustment frames work synchronously, and the driving of the motor is also a linear process. The user can control the motor to stop driving at any time according to personal preference, so that the footrest support plate and the backrest support plate stay at any position in this opening process.

[0025] The folding process of the utility model is as follows: the motor 2 drives the push rod 3 to retract backwards, the push rod 3 pulls the connecting rod 12 to move backwards, the connecting rod 12 pulls the lower end of the third transmission rod 9 to swing backwards, and the third transmission rod 9 simultaneously drives the second transmission rod 8, the fourth transmission rod 10 and the fifth transmission rod 11 to move backwards, thereby realizing the folding of the footrest support plate 6 backwards; while the second transmission rod 8 moves backwards, it pushes the first transmission rod 7 to move backwards, and the first transmission rod 7 pushes the lower end of the backrest support plate 5 to move backwards, thereby realizing the folding of the backrest support plate 5 forwards. In this folding process, the various components of the two adjustment frames work synchronously, and the driving of the motor is also a linear process. The user can control the motor to stop driving at any time according to personal preference, so that the footrest support plate and the backrest support plate stay at any position in this opening process.

[0026] The above is only a preferred embodiment of the present invention. Any slight modification, equivalent changes and modifications made to the above embodiments according to the technical solution of the present invention are within the scope of the technical solution of the present invention.

Claims

1. An electric sofa chair bracket, characterized in that: It comprises a sofa support frame, a motor is installed on the rear end of the sofa support frame, and a push rod is connected to the power output end of the motor; support members are respectively connected to the two sides of the sofa support frame, and adjustment frames are movably installed on the two support members, and the two support members are arranged opposite to each other, and the two adjustment frames are arranged opposite to each other; the adjustment frame comprises a backrest support plate, a footrest support plate, a first transmission rod, a second transmission rod, a third transmission rod, a fourth transmission rod and a fifth transmission rod; the backrest support plate is rotatably connected to the rear end of the support member, and the rear end of the first transmission rod is rotatably connected to the lower end of the backrest support plate; the rear ends of the second transmission rod and the third transmission rod are respectively rotatably connected to the front end of the support member, and the connection point of the third transmission rod on the support member is located at In front of the connection point of the second transmission rod on the support member; the front end of the first transmission rod is rotationally connected to the middle part of the second transmission rod, and the front end of the second transmission rod is rotationally connected to the rear end of the fourth transmission rod; the middle part of the fourth transmission rod and the rear end of the fifth transmission rod are respectively rotationally connected to the front end of the third transmission rod, and the connection point of the fifth transmission rod on the third transmission rod is located in front of the connection point of the fourth transmission rod on the third transmission rod; the front end of the fourth transmission rod is rotationally connected to the rear end of the foot support plate, and the front end of the fifth transmission rod is rotationally connected to the front end of the foot support plate; a connecting rod is fixedly connected between the middle parts of the third transmission rods of the two adjustment frames, and the front end of the push rod is connected to the middle part of the connecting rod.

2. The electric sofa chair bracket according to claim 1, characterized in that: There is a first rotating shaft between the chair back support plate and the support member, a second rotating shaft between the first transmission rod and the chair back support plate, a third rotating shaft between the second transmission rod and the support member, a fourth rotating shaft between the third transmission rod and the support member, a fifth rotating shaft between the first transmission rod and the second transmission rod, a sixth rotating shaft between the second transmission rod and the fourth transmission rod, a seventh rotating shaft between the fourth transmission rod and the third transmission rod, an eighth rotating shaft between the fifth transmission rod and the third transmission rod, a ninth rotating shaft between the fourth transmission rod and the foot support plate, and a tenth rotating shaft between the fifth transmission rod and the foot support plate.

3. The electric sofa chair bracket according to claim 2, characterized in that: Two first connecting plates are provided on the rear end of the sofa support frame, and the motor is provided with a connecting head, which is installed between the two first connecting plates and is rotatably connected to the two first connecting plates, and an eleventh rotating shaft is provided between the connecting head and the first connecting plates; two second connecting plates are provided on the connecting rod, and the front end of the push rod is installed between the two second connecting plates and is rotatably connected to the two second connecting plates, and a twelfth rotating shaft is provided between the front end of the push rod and the second connecting plate.

4. The electric sofa chair bracket according to claim 2, characterized in that: A convex portion protruding forward is provided in the middle of the seat back support plate, the convex portion of the seat back support plate is rotatably connected to the rear end of the support component, and a seat back mounting hole is provided at the upper end of the seat back support plate.

5. The electric sofa chair bracket according to claim 2, characterized in that: The shape of the second transmission rod is a bent "〈" shape, the fifth rotating shaft is located at the bending position of the second transmission rod, and a "I"-shaped limiting hole is provided at the front end of the first transmission rod. The fifth rotating shaft is passed through the "I"-shaped limiting hole and can move back and forth in the "I"-shaped limiting hole.

6. The electric sofa chair bracket according to claim 5, characterized in that: A second limiting column for limiting the end point of the forward movement of the second transmission rod is provided at the front end of the support member.

7. The electric sofa chair bracket according to claim 1, characterized in that: A pedal support plate bending portion is arranged on the pedal support plate, and a plurality of pedal mounting holes are arranged on the pedal support plate bending portion.

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