Sofa with electric stretching structure

Abstract

The sofa with the electric stretching structure comprises an L-shaped base, a seat plate and two side plates, the side plates are arranged on the two sides of the base, and soft cushions are arranged on the base, the seat plate and the side plates; a soft cushion is arranged at the top of the head plate, and the head plate is arranged between the seat plate and the base; the auxiliary lying plate is arranged between the seat plate and the base, and an avoiding cavity and a base plate are arranged on the auxiliary lying plate; the electric stretching structure comprises a motor, a gear, a toothed plate, a cam and a buffer device, and the motor is arranged on the buffer device; one end of the elastic telescopic rod is rotationally connected with the two side wall bodies of the avoiding groove, and the auxiliary supporting device is used for supporting the seat plate after the seat plate moves upwards between the two side plates and supporting one side of the auxiliary lying plate. According to the invention, the electric stretching structure works to drive the auxiliary lying plate to move, and the seat plate is not supported between the two side plates, moves downwards and then is flush with the auxiliary lying plate, so that the sofa becomes a sofa bed and is convenient to lie flat.

Description

Technical Field

[0001] The present invention relates to the technical field of sofas, in particular to a sofa with an electric extension structure. Background Art

[0002] Traditional sofas are mainly used as furniture in homes and offices. Due to the different types and styles of sofas in different countries, modern sofas have unique shapes and diverse functions. The sofa with an electric extension structure is a special sofa structure. On the basis of sitting on the sofa, it can be extended to form a sofa body that can support the feet. The existing sofa with an electric extension structure only extends the leg structure, and after extension, it is not flat, which is inconvenient for people to lie down and rest, and there are shortcomings. Summary of the Invention

[0003] The purpose of the present invention is to solve the above technical problems and provide a sofa with an electric extension structure.

[0004] The technical solution of the present invention is as follows: a sofa with an electric extension structure, comprising an L-shaped base, a seat panel, and two side panels, wherein the side panels are provided on both sides of the base, the base, the seat panel, and the side panels are all provided with cushions, and the seat panel is provided with an avoidance groove and can move up and down between the two side panels; and further comprising:

[0005] a headboard with a soft cushion on the top, which is arranged between the seat plate and the base;

[0006] An auxiliary lying plate is arranged between the seat plate and the base, and an avoidance cavity and a pad are provided on the auxiliary lying plate;

[0007] An electric extension structure, comprising a motor, a gear, a toothed plate, a cam, and a buffer device, wherein the motor is disposed on the buffer device, the gear and the cam are both disposed on the output end of the motor, and the toothed plate is disposed in the avoidance cavity and meshes with the gear;

[0008] An elastic telescopic rod, one end of which is rotatably connected to the two side walls of the avoidance groove.

[0009] The auxiliary supporting device is used to support the seat plate after it moves upward between the two side plates and to support one side of the auxiliary lying plate.

[0010] Preferably, a plurality of sliders are provided on both sides of the seat plate, and a plurality of first sliding grooves are provided on the side plate, and the sliders can slide in the first sliding grooves.

[0011] Preferably, the buffer device includes a support plate, a plurality of first springs and a T-shaped guide column. The buffer device is arranged on the base, the support plate can slide on the guide column, and the first spring is sleeved on the guide column.

[0012] Preferably, the elastic telescopic rod includes an outer tube, a second spring and a T-shaped outer rod, one end of the outer rod is rotatably connected to the two side walls of the avoidance groove, and the other end can slide in the outer tube, and the second spring is arranged in the outer tube.

[0013] Preferably, the auxiliary lying plate is provided with several second sliding grooves, and the elastic telescopic rod is provided with two card slots; the auxiliary supporting device includes several third springs, vertical rods, cross rods and T-shaped push rods, the vertical rods are arranged on the push rods, the cross rods are arranged on the buffer device, one end of the push rod can slide in the second sliding groove, and the third spring is arranged in the second sliding groove.

[0014] Preferably, the tooth plate is provided with a slot; and further comprises an L-shaped insertion rod, which is provided on the elastic telescopic rod.

[0015] The beneficial effects of the present invention are as follows: in the present invention, the electric extension structure drives the auxiliary lying board to move, and the seat board, which is not supported between the two side panels, moves downward and is flush with the auxiliary lying board, so that the sofa is turned into a sofa bed, which is convenient for lying flat. When the auxiliary lying board is retracted, the cooperation of the electric extension structure and the auxiliary supporting device can make the seat board move upward between the two side panels, and the auxiliary lying board returns to the bottom of the seat board to be folded. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is the main view of the overall structure of the preferred embodiment of the present invention

[0017] Figure 2 is a cross-sectional view of the overall structure of a preferred embodiment of the present invention;

[0018] Figure 3 This is a schematic diagram of the auxiliary lying board extending in a preferred embodiment of the present invention;

[0019] Figure 4 yes Figure 3 A partial enlarged view of the middle part;

[0020] Figure 5 is a top view of the seat plate in a preferred embodiment of the present invention;

[0021] Figure 6 is a cross-sectional view of the head plate in a preferred embodiment of the present invention;

[0022] Figure 7 This is a side view of the connection between the auxiliary lying plate, the auxiliary supporting device and the tooth plate in a preferred embodiment of the present invention;

[0023] Figure 8 This is a cross-sectional view of the connection between the auxiliary lying plate and the auxiliary supporting device in a preferred embodiment of the present invention;

[0024] Figure 9 yes Figure 8 A partial enlarged view of point B in the middle;

[0025] Figure 10 This is a schematic diagram of the connection between the motor, gears and cam in a preferred embodiment of the present invention;

[0026] Figure 11 This is a cross-sectional view of the connection between the elastic telescopic rod and the insertion rod in a preferred embodiment of the present invention;

[0027] Figure 12 It is a top view of the connection between the cross bar and the buffer device in a preferred embodiment of the present invention.

[0028] Figure markings: base 10, seat plate 2, avoidance groove 201, slider 202, side plate 3, first slide groove 301, head plate 4, first placement groove 401, second placement groove 402, auxiliary lying plate 5, avoidance cavity 501, pad 502, second slide groove 503, motor 6, gear 7, tooth plate 8, slot 801, cam 9, elastic telescopic rod 11, outer tube 1101, second spring 1102, outer rod 1103, support plate 12, first spring 13, guide column 14, third spring 15, vertical rod 16, horizontal rod 17, push rod 18, insertion rod 19. DETAILED DESCRIPTION

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] Reference Figures 1 to 12 A sofa with an electric extension structure includes an L-shaped base 10, a seat panel 2, and two side panels 3. The side panels 3 are provided on both sides of the base 10. The base 10, the seat panel 2, and the side panels 3 are all provided with cushions. The seat panel 2 is provided with an avoidance groove 201 and can move up and down between the two side panels 3; and further includes:

[0031] A headboard 4 with a soft cushion on the top is arranged between the seat board 2 and the base 10;

[0032] An auxiliary lying plate 5 is provided between the seat plate 2 and the base 10 , and an avoidance cavity 501 and a pad 502 are provided on the auxiliary lying plate 5;

[0033] An electric extension structure includes a motor 6, a gear 7, a toothed plate 8, a cam 9, and a buffer device. The motor 6 is disposed on the buffer device. The gear 7 and the cam 9 are both disposed on the output end of the motor 6. The toothed plate 8 is disposed in the avoidance cavity 501 and meshes with the gear 7.

[0034] The elastic telescopic rod 11 has one end rotatably connected to the two side walls of the avoidance groove 201.

[0035] The auxiliary support device is used to support the seat panel 2 after it moves upward between the two side panels 3 and to support one side of the auxiliary reclining panel 5. In the present invention, when the sofa needs to be unfolded, the motor 6 drives the gear 7 to rotate, and the gear 7 drives the tooth plate 8 to move leftward to make the auxiliary reclining panel 5 move leftward. When the elastic telescopic rod 11 is not in contact with the auxiliary reclining panel 5, it rotates clockwise without support and is in a vertical state. When the auxiliary reclining panel 5 is separated from the bottom of the seat panel 2, the seat panel 2 moves downward without support, driving the elastic telescopic rod 11 to move downward. The bottom of the elastic telescopic rod 11 contacts the cam 9. The cam 9 is pushed downward by the elastic telescopic rod 11 to give the motor 6 a downward thrust. The motor 6 then squeezes the buffer device, the gear 7 does not contact the tooth plate 8, the top of the seat panel 2 is flush with the top of the auxiliary reclining panel 5, and the sofa is unfolded. The auxiliary support device supports one side of the auxiliary reclining panel 5 to prevent it from tilting. When the auxiliary reclining panel 5 needs to be folded, the motor 6 drives the cam 9 to rotate in the opposite direction, and the cam 9 drives the elastic telescopic rod 11 to move upward, thereby making the seat panel 2 move upward. At this time, the gear 7 is always in contact with the tooth plate 8, causing the auxiliary lying plate 5 to move rightward and return to its original position, thereby realizing the spreading and folding of the sofa through the electric extension structure. Specifically, the motor 6 is a servo motor, and its number of rotations is set by a program, which is prior art and will not be described here; a first placement slot 401 and several second placement slots 402 are provided on the head plate 4, one end of the tooth plate 8 cooperates with the first placement slot 401, and the vertical rod 16 and the push rod 18 cooperate with the second placement slot 402; the head plate 4 acts as a pillow.

[0036] As a preferred embodiment of the present invention, it may also have the following additional technical features:

[0037] In this embodiment, several sliders 202 are provided on both sides of the seat plate 2, and several first slide grooves 301 are provided on the side plate 3. The sliders 202 can slide in the first slide grooves 301, and the side plates 3 slide in the first slide grooves 301 through the sliders 202 to achieve up and down movement between the two side plates 3.

[0038] In this embodiment, the buffer device includes a support plate 12, a plurality of first springs 13, and a T-shaped guide post 14. The buffer device is arranged on the base 10. The support plate 12 can slide on the guide post 14, and the first spring 13 is sleeved on the guide post 14. When the motor 6 is subjected to a downward thrust, it exerts a force on the support plate 12. The support plate 12 slides downward on the guide post 14 and compresses the first spring 13. When the motor 6 is not under force, the first spring 13 exerts a reaction force on it to return to its original position.

[0039] In this embodiment, the elastic telescopic rod 11 includes an outer tube 1101, a second spring 1102 and a T-shaped outer rod 1103. One end of the outer rod 1103 is rotatably connected to the two side walls of the avoidance groove 201, and the other end can slide in the outer tube 1101. The second spring 1102 is arranged in the outer tube 1101. Specifically, the bottom of the outer tube 1101 is arc-shaped and cooperates with the cam 9. When the outer tube 1101 is not in contact with the auxiliary lying plate 5 and rotates clockwise in a vertical state, the seat plate 2 moves downward, driving the bottom of the outer tube 1101 and the low point of the cam 9. The support plate 12 is forced to move downward and squeeze the first spring 13. When the auxiliary lying plate 5 needs to be retracted, the motor 6 drives the cam 9 to rotate in the opposite direction. The rotation of the cam 9 causes the outer tube 1101 to move upward, driving the outer rod 1103 to move upward, causing the seat plate 2 to move upward and return to its original position. The auxiliary support device fixes the seat plate 2. When the high point of the cam 9 is in contact with the seat plate 2, the seat plate 2 moves downward. After the bottom of the outer tube 1101 contacts, the cam 9 is forced to exert downward force on the support plate 12 to make it move downward, and the gear 7 disengages from the tooth plate 8. When the cam 9 rotates to the lowest point, the cam 9 does not contact the bottom of the outer tube 1101, and the support plate 12 returns to its original position. The gear 7 re-contacts the tooth plate 8, and the gear 7 drives the tooth plate 8 to move to the right. The gear 7 and the tooth plate 8 repeatedly disengage or engage, driving the tooth plate 8 to move to the right. When the outer tube 1101 is acted upon by the auxiliary lying plate 5 to the right and rotates counterclockwise back to its original position, the gear 7 and the tooth plate 8 will continue to contact until the tooth plate 8 returns to its original position.

[0040] In this embodiment, the auxiliary lying plate 5 is provided with a plurality of second sliding grooves 503, and the elastic telescopic rod 11 is provided with two slots; the auxiliary supporting device includes a plurality of third springs 15, a vertical rod 16, a horizontal rod 17 and a T-shaped push rod 18, the vertical rod 16 is provided on the push rod 18, the horizontal rod 17 is provided on the buffer device, one end of the push rod 18 can slide in the second sliding groove 503, and the third spring 15 is provided in the second sliding groove 503. Specifically, the outer tube 1101 is provided with two slots. When the auxiliary lying plate 5 moves to the left, the vertical rod 16 will contact with the horizontal rod 17 to support the vertical rod 16, and then support the right side of the auxiliary lying plate 5 after the auxiliary lying plate 5 is completely moved out. The outer tube 1101 is not in contact with the auxiliary lying plate 5 and rotates clockwise to contact the push rod 18. The push rod 18 is subjected to the thrust of the outer tube 1101 to squeeze the third spring 15. When the motor 6 drives the cam 9 to rotate in the opposite direction, the rotation of the cam 9 causes the outer tube 1101 to rotate. 01 moves upward, and after the seat plate 2 returns to its original position, the outer tube 1101 is squeezed by the second spring 1102 due to the upward movement of the cam 9, and one end of the push rod 18 falls into the slot. When the cam 9 rotates to the lowest point, the cam 9 does not contact the outer tube 1101, and the second spring 1102 exerts force on the outer tube 1101 to make it return to its original position. One end of the push rod 18 contacts the upper wall of the slot, and then supports the outer tube 1101 so that the seat plate 2 does not move downward, and when the auxiliary lying plate 5 moves to the right, it does not hit the seat plate 2.

[0041] In this embodiment, a slot 801 is provided on the tooth plate 8; it also includes an L-shaped insertion rod 19, which is arranged on the elastic telescopic rod 11. After the outer tube 1101 moves downward, it drives the insertion rod 19 to move downward. The insertion rod 19 cooperates with the slot 801, so that the auxiliary lying plate 5 will not move left and right after being moved out.

[0042] It should be noted that the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus that includes a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprises a ..." does not preclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0043] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A sofa with an electric extension structure, comprising an L-shaped base (10), a seat plate (2) and two side plates (3), wherein the side plates (3) are provided on both sides of the base (10), and the base (10), the seat plate (2) and the side plates (3) are all provided with cushions, characterized in that: The seat plate (2) is provided with an avoidance groove (201) and is capable of moving up and down between the two side plates (3); and further comprises: A headboard (4) with a soft cushion on the top is arranged between the seat board (2) and the base (10); An auxiliary lying plate (5) is arranged between the seat plate (2) and the base (10), and a avoidance cavity (501) and a pad (502) are provided on the auxiliary lying plate (5); An electric extension structure, comprising a motor (6), a gear (7), a toothed plate (8), a cam (9) and a buffer device, wherein the motor (6) is arranged on the buffer device, the gear (7) and the cam (9) are both arranged on the output end of the motor (6), and the toothed plate (8) is arranged in the avoidance chamber (501) and meshes with the gear (7); An elastic telescopic rod (11) has one end rotatably connected to the two side walls of the avoidance groove (201). An auxiliary support device is used to support the seat plate (2) after it moves upward between the two side plates (3) and to support one side of the auxiliary lying plate (5).

2. The sofa with an electric extension structure according to claim 1, characterized in that: A plurality of sliders (202) are provided on both sides of the seat plate (2), and a plurality of first sliding grooves (301) are provided on the side plate (3), and the sliders (202) can slide in the first sliding grooves (301).

3. The sofa with an electric extension structure according to claim 1, characterized in that: The buffer device comprises a support plate (12), a plurality of first springs (13) and a T-shaped guide column (14); the buffer device is arranged on the base (10); the support plate (12) can slide on the guide column (14); and the first spring (13) is sleeved on the guide column (14).

4. The sofa with an electric extension structure according to claim 1, characterized in that: The elastic telescopic rod (11) comprises an outer tube (1101), a second spring (1102) and a T-shaped outer rod (1103); one end of the outer rod (1103) is rotatably connected to the two side walls of the avoidance groove (201), and the other end can slide within the outer tube (1101); the second spring (1102) is arranged within the outer tube (1101).

5. The sofa with an electric extension structure according to claim 1, characterized in that: The auxiliary lying plate (5) is provided with a plurality of second sliding grooves (503), and the elastic telescopic rod (11) is provided with two card slots; the auxiliary supporting device includes a plurality of third springs (15), a vertical rod (16), a horizontal rod (17) and a T-shaped push rod (18), the vertical rod (16) is arranged on the push rod (18), the horizontal rod (17) is arranged on the buffer device, one end of the push rod (18) can slide in the second sliding groove (503), and the third spring (15) is arranged in the second sliding groove (503).

6. The sofa with an electric extension structure according to claim 1, characterized in that: The tooth plate (8) is provided with a slot (801); and further comprises an L-shaped insertion rod (19) which is arranged on the elastic telescopic rod (11).

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