Sofa convenient for adjusting sitting posture

Abstract

The utility model relates to the technical field of furniture, and discloses a sofa convenient for adjusting sitting postures, which comprises a base, and armrests are fixedly mounted at the top end of the base. By arranging the first moving block, the first connecting shaft, the moving rod and the driving motor, when the driving motor runs, a threaded rod rotates, due to the limiting effect of a transverse groove, the moving rod is driven by the threaded rod to move forwards, and a cushion is driven by the moving rod to move forwards; next, the seat cushion drives the whole backrest to move through a first connecting shaft and a second hinge block, due to the fact that the first connecting shaft is hinged to the second hinge block, the backrest and the first connecting shaft rotate with the hinge position of the first connecting shaft and the second hinge block as the axis, and meanwhile a first moving block moves downwards along the interior of a vertical groove; therefore, the function of automatically adjusting the inclination angle of the backrest according to different use requirements is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of furniture, and more specifically, to a sofa which is convenient for adjusting sitting posture. Background Art

[0002] In daily life, sofas have entered thousands of households as essential furniture, greatly improving the quality of people's lives. The texture of sofas is generally soft, which increases people's comfort. However, the sofas on the market are often in use because their backrests are generally fixed, which makes it inconvenient to adjust the sitting posture during use, and the backrest cannot be adjusted according to different usage requirements, which brings inconvenience to people's daily use, so it needs to be improved. Utility Model Content

[0003] In order to overcome the deficiencies of the prior art, the utility model provides a sofa which is easy to adjust the sitting posture and has the advantage of automatically adjusting the inclination angle of the sofa backrest according to different usage requirements.

[0004] To achieve the above purpose, the utility model provides the following technical solution: a sofa that is easy to adjust the sitting posture, comprising:

[0005] A base, a handrail is fixedly installed on the top of the base, a horizontal groove is opened on the right side of the inside of the handrail, a vertical plate is fixedly installed behind the top of the handrail, and a vertical groove is opened on the front of the vertical plate;

[0006] A square plate, the bottom end of which is fixedly connected to the bottom end of the inside of the handrail, and the top end of which is provided with a limiting groove;

[0007] A driving mechanism, wherein the driving mechanism is arranged inside the right side of the armrest;

[0008] An adjusting mechanism, wherein the adjusting mechanism is arranged on the top of the square plate;

[0009] In which, the adjusting mechanism includes a first moving block, an outer surface of one rear end of the first moving block is movably connected to the internal part of the vertical slot, a first hinge block is hingedly connected to the front end of the first moving block, a backrest is fixedly installed on the outer surface of the first hinge block, the bottom ends of the left and right sides of the backrest are both movably connected to the internal part of the armrest, a first connecting shaft is fixedly installed on the bottom end of the backrest, the other end of the first connecting shaft is hingedly connected to the second hinge block, a seat cushion is fixedly installed on the front side of the second hinge block, the left and right sides of the seat cushion are both movably connected to the internal part of the armrest, the bottom end of the seat cushion is movably connected to the top end of the square plate, a movable block is fixedly installed on the rear of the bottom end of the seat cushion, the outer surface of the movable block is movably connected to the internal part of the limiting slot, a movement rod is fixedly installed on the right side of the seat cushion, and the other end of the movement rod extends to the inside of the right side of the armrest through the horizontal slot.

[0010] As a preferred technical solution of the utility model, the driving mechanism includes:

[0011] A fixing plate, both left and right sides of which are fixedly connected to the inside of the right side of the armrest;

[0012] A driving motor, the front side of the driving motor is fixedly connected to the back side of the fixing plate, the other end of the output shaft of the driving motor is fixedly sleeved with a threaded rod, the other end of the threaded rod passes through the back side of the fixing plate and extends to the front side of the fixing plate, and the other end of the threaded rod is movably connected to the inside of the right side of the armrest.

[0013] As a preferred technical solution of the utility model, a second connecting shaft is fixedly installed inside the front side of the seat cushion, a third hinge block is sleeved on the second connecting shaft, and a support plate is fixedly installed on the other end of the third hinge block.

[0014] As a preferred technical solution of the utility model, a long groove is opened on the left side of the support plate, and a round shaft is movably connected inside the long groove. A push rod is movably sleeved on one end of the left side of the round shaft, and the rear of the push rod passes through the left side of the front side of the armrest and extends to the inside of the left side of the armrest.

[0015] As a preferred technical solution of the utility model, a fixed block is fixedly installed at the bottom end of the left side of the armrest, a power motor is fixedly installed at the top of the fixed block, a lead screw is fixedly sleeved on the other end of the output shaft of the power motor, and the top of the lead screw is movably connected to the top end of the left side of the armrest.

[0016] As a preferred technical solution of the utility model, a limiting block is fixedly installed at the bottom end of the left side of the armrest, the top of the limiting block is fixedly connected to the top end of the left side of the armrest, the front of the limiting block is movably connected to a lifting block, and the interior of the lifting block is threadedly sleeved with the outer surface of the lead screw.

[0017] As a preferred technical solution of the utility model, a movable rod is hinged at the other end of the lifting block, and the other end of the movable rod is movably sleeved with the rear of the left side of the push rod.

[0018] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0019] 1. The utility model is provided with a first moving block, a first connecting shaft, a moving rod and a driving motor. When the driving motor is running, the threaded rod will rotate. Due to the limiting effect of the transverse groove, the moving rod will move forward driven by the threaded rod. At this time, the seat cushion will move forward driven by the moving rod. Then the seat cushion will drive the backrest to move as a whole through the first connecting shaft and the second hinge block. Since the first connecting shaft and the second hinge block are hinged, the backrest and the first connecting shaft will rotate around the hinge with the second hinge block as the axis. At the same time, the first moving block will move downward along the inside of the vertical groove, thereby realizing the function of automatically adjusting the inclination angle of the backrest according to different usage requirements.

[0020] 2. The utility model is provided with a push rod, a movable rod, a lifting block and a power motor. When the power motor is running, the lead screw will rotate. Due to the limiting effect inside the limit block, the lifting block will move downward under the drive of the lead screw, and then the movable rod will move under the drive of the lifting block. Since the other end of the push rod passes through the interior of the left side of the armrest and extends to the outside of the armrest, the other end of the movable rod will squeeze and push the push rod to make the push rod move forward. Then, the push rod will squeeze and push the interior of the long groove through the circular shaft during the forward movement, thereby making the support plate move as a whole. Since the third hinge block is hinged to the second connecting shaft, the support plate as a whole will rotate at the hinge with the second connecting shaft, thereby realizing the function of adjusting the angle of the long groove according to different usage requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the back structure of the utility model;

[0023] Figure 3 It is a cross-sectional structural schematic diagram of the utility model;

[0024] Figure 4 It is a schematic cross-sectional structure diagram of the handrail of the utility model;

[0025] Figure 5 It is a cross-sectional structural schematic diagram of the fixing plate of the utility model;

[0026] Figure 6 It is a cross-sectional structural schematic diagram of the drive motor of the utility model;

[0027] Figure 7 It is a schematic diagram of the cross-sectional structure of the limit block of the utility model.

[0028] In the figure: 1. base; 2. armrest; 3. horizontal groove; 4. vertical plate; 5. vertical groove; 6. square plate; 7. limit groove; 8. first moving block; 9. first hinge block; 10. backrest; 11. first connecting axis; 12. second hinge block; 13. cushion; 14. movable block; 15. moving rod; 16. fixed plate; 17. driving motor; 18. threaded rod; 19. second connecting axis; 20. third hinge block; 21. supporting plate; 22. long groove; 23. round shaft; 24. push rod; 25. movable rod; 26. lifting block; 27. limit block; 28. fixed block; 29. ​​power motor; 30. lead screw. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] like Figures 1 to 7 As shown, the utility model provides a sofa that is convenient for adjusting sitting posture, including:

[0031] A base 1, a handrail 2 is fixedly installed on the top of the base 1, a horizontal groove 3 is opened on the right side of the inside of the handrail 2, a vertical plate 4 is fixedly installed behind the top of the handrail 2, and a vertical groove 5 is opened on the front of the vertical plate 4;

[0032] A square plate 6, the bottom end of which is fixedly connected to the bottom end of the inside of the handrail 2, and a limiting groove 7 is provided at the top end of the square plate 6;

[0033] A driving mechanism, the driving mechanism is arranged inside the right side of the armrest 2;

[0034] An adjustment mechanism, the adjustment mechanism is arranged at the top of the square plate 6;

[0035] Among them, the adjustment mechanism includes a first moving block 8, the outer surface of the rear end of the first moving block 8 is movably connected to the inside of the vertical groove 5, the front end of the first moving block 8 is hinged with a first hinge block 9, the outer surface of the first hinge block 9 is fixedly installed with a backrest 10, the bottom ends of the left and right sides of the backrest 10 are both movably connected to the inside of the armrest 2, the bottom end of the backrest 10 is fixedly installed with a first connecting shaft 11, the other end of the first connecting shaft 11 is hinged with a second hinge block 12, a seat cushion 13 is fixedly installed on the front of the second hinge block 12, the left and right sides of the seat cushion 13 are both movably connected to the inside of the armrest 2, the bottom end of the seat cushion 13 is movably connected to the top of the square plate 6, a movable block 14 is fixedly installed at the rear of the bottom end of the seat cushion 13, the outer surface of the movable block 14 is movably connected to the inside of the limiting groove 7, a moving rod 15 is fixedly installed on the right side of the seat cushion 13, and the other end of the moving rod 15 extends to the inside of the right side of the armrest 2 through the horizontal groove 3.

[0036] Due to the limiting effect of the transverse groove 3, the movement rod 15 can only move forward and backward. When the movement rod 15 drives the seat cushion 13 to move forward as a whole, the seat cushion 13 will drive the backrest 10 to move as a whole through the second hinge block 12 and the first connecting shaft 11. Since there is an articulated relationship between the second hinge block 12 and the first connecting shaft 11, the backrest 10 and the first connecting shaft 11 will rotate around the hinge with the second hinge block 12 as the axis while moving. At the same time, the backrest 10 will drive the first hinge block 9 and the first movement block 8 to move. Due to the limiting effect inside the vertical groove 5, the first movement block 8 will move downward along the inside of the vertical groove 5. At this time, the backrest 10 as a whole will adjust its inclination angle during the forward movement of the seat cushion 13.

[0037] The driving mechanism includes:

[0038] A fixing plate 16, both left and right sides of the fixing plate 16 are fixedly connected to the inside of the right side of the armrest 2;

[0039] The driving motor 17 has a front side fixedly connected to the back side of the fixing plate 16, and the other end of the output shaft of the driving motor 17 is fixedly sleeved with a threaded rod 18, and the other end of the threaded rod 18 passes through the back side of the fixing plate 16 and extends to the front side of the fixing plate 16, and the other end of the threaded rod 18 is movably connected to the inside of the right side of the armrest 2.

[0040] When the driving motor 17 is running, the threaded rod 18 will rotate. Since the outer surface of the threaded rod 18 is threaded, the motion rod 15 will move forward along the inside of the transverse groove 3 driven by the threaded rod 18 .

[0041] A second connecting shaft 19 is fixedly installed inside the front side of the seat cushion 13 , a third hinge block 20 is sleeved on the second connecting shaft 19 , and a support plate 21 is fixedly installed on the other end of the third hinge block 20 .

[0042] Due to the design of the second connecting shaft 19 and the third hinge block 20 , the support plate 21 and the third hinge block 20 can rotate around the hinged portion with the second connecting shaft 19 as the axis.

[0043] Among them, a long groove 22 is opened on the left side of the support plate 21, and a round shaft 23 is movably connected inside the long groove 22. A push rod 24 is movably sleeved on one end of the left side of the round shaft 23. The rear of the push rod 24 passes through the left side of the front of the armrest 2 and extends to the inside of the left side of the armrest 2.

[0044] Since the rear end of the push rod 24 passes through the left side of the front face of the armrest 2, the push rod 24 can only move forward and backward. When the push rod 24 drives the round shaft 23 to move forward, the outer surface of the round shaft 23 will squeeze the inside of the long groove 22. At this time, the support plate 21 as a whole will rotate around the hinge with the second connecting shaft 19 as the axis.

[0045] Among them, a fixed block 28 is fixedly installed at the bottom end of the left side of the armrest 2, a power motor 29 is fixedly installed at the top of the fixed block 28, and a screw 30 is fixedly sleeved on the other end of the output shaft of the power motor 29, and the top of the screw 30 is movably connected to the top end of the left side of the armrest 2.

[0046] When the power motor 29 is running, the lead screw 30 will rotate.

[0047] Among them, a limit block 27 is fixedly installed at the bottom end of the left side of the armrest 2, the top of the limit block 27 is fixedly connected to the top end of the left side of the armrest 2, and the front of the limit block 27 is movably connected to the lifting block 26, and the interior of the lifting block 26 is threadedly sleeved with the outer surface of the screw 30.

[0048] Due to the limiting effect inside the limiting block 27 , the lifting block 26 can only move up and down. When the lead screw 30 rotates, the lifting block 26 will move downward along the inside of the limiting block 27 driven by the lead screw 30 .

[0049] The other end of the lifting block 26 is hinged with a movable rod 25 , and the other end of the movable rod 25 is movably sleeved with the rear of the left side of the push rod 24 .

[0050] When the lifting block 26 moves downward, the movable rod 25 will move under the drive of the lifting block 26, and the other end of the movable rod 25 will squeeze and push the push rod 24 to make the push rod 24 move forward.

[0051] The working principle and use process of this utility model:

[0052] First, the operator starts the drive motor 17, and the threaded rod 18 will rotate. At this time, the movement rod 15 will move driven by the threaded rod 18. Due to the design inside the transverse groove 3, the movement of the movement rod 15 will be limited. At this time, the movement rod 15 will move forward, and then the movement rod 15 will drive the seat cushion 13 to move forward as a whole. Due to the design of the second hinge block 12 and the first connecting shaft 11, the seat cushion 13 will drive the backrest 10 to move as a whole through the first connecting shaft 11 and the second hinge block 12. Due to the design of the first movement block 8 and the first hinge block 9, when the backrest 10 moves, the first movement block 8 will move downward along the inside of the vertical groove 5. At the same time, the backrest 10 and the first connecting shaft 11 will rotate around the hinge with the second hinge block 12 as the axis, thereby realizing the function of automatically adjusting the inclination of the backrest 10 according to different usage requirements.

[0053] Then the operator starts the power motor 29, at which time the lead screw 30 will rotate, and the lifting block 26 will move under the drive of the lead screw 30. Due to the internal design of the limit block 27, the lifting block 26 can only move up and down. At this time, the lifting block 26 will move downward under the drive of the lead screw 30, and then the lifting block 26 will drive the movable rod 25 to move while moving downward. At this time, the other end of the movable rod 25 will squeeze and push the rear end of the push rod 24 to make the push rod 24 move. Since the other end of the push rod 24 penetrates the interior of the left side of the handrail 2 and extends To the front of the front of the armrest 2, the push rod 24 will move forward under the squeezing and pushing of the movable rod 25, and at the same time, the round shaft 23 will move forward driven by the push rod 24. At this time, the round shaft 23 will squeeze and push the inside of the long groove 22 during the forward movement, thereby causing the support plate 21 to move. Since the support plate 21 is hinged to the second connecting shaft 19 through the third hinge block 20, the support plate 21 and the third hinge block 20 will rotate at the hinge with the second connecting shaft 19, thereby realizing the function of adjusting the inclination angle of the long groove 22 according to different usage requirements.

[0054] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0055] Although 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 the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sofa that is easy to adjust the sitting posture, characterized in that: Included are: A base (1), a handrail (2) is fixedly mounted on the top of the base (1), a transverse groove (3) is provided on the right side of the inside of the handrail (2), a vertical plate (4) is fixedly mounted behind the top of the handrail (2), and a vertical groove (5) is provided on the front of the vertical plate (4); A square plate (6), the bottom end of the square plate (6) is fixedly connected to the bottom end of the inside of the handrail (2), and a limiting groove (7) is provided at the top end of the square plate (6); A driving mechanism, the driving mechanism being arranged inside the right side of the armrest (2); An adjustment mechanism, the adjustment mechanism being arranged on the top end of the square plate (6); The adjustment mechanism comprises a first moving block (8), the outer surface of the rear end of the first moving block (8) is movably connected to the inside of the vertical groove (5), the front end of the first moving block (8) is hinged with a first hinge block (9), the outer surface of the first hinge block (9) is fixedly mounted with a backrest (10), the bottom ends of the left and right sides of the backrest (10) are both movably connected to the inside of the armrest (2), the bottom end of the backrest (10) is fixedly mounted with a first connecting shaft (11), the other end of the first connecting shaft (11) is hinged with a second hinge block (12), and the A seat cushion (13) is fixedly mounted on the front of the second hinge block (12); both left and right sides of the seat cushion (13) are movably connected to the inside of the armrest (2); the bottom end of the seat cushion (13) is movably connected to the top end of the square plate (6); a movable block (14) is fixedly mounted behind the bottom end of the seat cushion (13); the outer surface of the movable block (14) is movably connected to the inside of the limiting groove (7); a movement rod (15) is fixedly mounted on the right side of the seat cushion (13); the other end of the movement rod (15) extends to the inside of the right side of the armrest (2) through the transverse groove (3).

2. A sofa with easy-to-adjust sitting posture according to claim 1, characterized in that: The driving mechanism comprises: A fixing plate (16), the left and right sides of the fixing plate (16) are both fixedly connected to the inside of the right side of the armrest (2); A drive motor (17), the front side of the drive motor (17) is fixedly connected to the back side of the fixing plate (16), the other end of the output shaft of the drive motor (17) is fixedly sleeved with a threaded rod (18), the other end of the threaded rod (18) passes through the back side of the fixing plate (16) and extends to the front side of the fixing plate (16), and the other end of the threaded rod (18) is movably connected to the inside of the right side of the handrail (2).

3. The sofa with easy-to-adjust sitting posture according to claim 1, characterized in that: A second connecting shaft (19) is fixedly installed inside the front side of the seat cushion (13), a third hinge block (20) is sleeved on the second connecting shaft (19), and a support plate (21) is fixedly installed on the other end of the third hinge block (20).

4. The sofa for adjusting sitting posture according to claim 3, characterized in that: A long slot (22) is provided on the left side of the support plate (21), a round shaft (23) is movably connected inside the long slot (22), a push rod (24) is movably sleeved on one end of the left side of the round shaft (23), and the rear of the push rod (24) passes through the left side of the front side of the handrail (2) and extends to the inside of the left side of the handrail (2).

5. The sofa with easy-to-adjust sitting posture according to claim 1, characterized in that: A fixing block (28) is fixedly installed at the bottom end of the left side of the handrail (2), a power motor (29) is fixedly installed at the top end of the fixing block (28), a lead screw (30) is fixedly sleeved at the other end of the output shaft of the power motor (29), and the top end of the lead screw (30) is movably connected to the top end of the left side of the handrail (2).

6. The sofa with easy-to-adjust sitting posture according to claim 1, characterized in that: A limit block (27) is fixedly installed at the bottom end of the left side of the handrail (2), and the top end of the limit block (27) is fixedly connected to the top end of the left side of the handrail (2). The front of the limit block (27) is movably connected to a lifting block (26), and the inside of the lifting block (26) is threadedly sleeved with the outer surface of the lead screw (30).

7. The sofa with easy-to-adjust sitting posture according to claim 6, characterized in that: The other end of the lifting block (26) is hinged with a movable rod (25), and the other end of the movable rod (25) is movably sleeved with the rear of the left side of the push rod (24).

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