Adjustable sofa chair

Abstract

The utility model relates to a sofa chair, in particular to an adjustable sofa chair. The adjustable sofa chair comprises a frame body, a seat cushion, a supporting block, a supporting rod, rotating blocks and volute spiral springs, the seat cushion is connected to the upper portion of the frame body, the supporting block is fixedly connected to the left side of the upper portion of the frame body, the supporting rod is rotatably connected to the interior of the supporting block, the rotating blocks distributed longitudinally are fixedly connected to the supporting rod, and the volute spiral springs are arranged on the rotating blocks. A plurality of volute spiral springs distributed longitudinally are connected to the supporting rods, and the front sides and the rear sides of the volute spiral springs are connected with the two adjacent rotating blocks correspondingly. By arranging the rotatable supporting rod, the rotating block, the volute spiral spring and the supporting frame, the bolt is pulled to move backwards to be disengaged from the supporting rod, and then the supporting frame is rotated leftwards to a proper angle, so that the backrest cushion, the supporting rod and the rotating block rotate leftwards, the purpose of adjusting the angle of the backrest is achieved, and the backrest requirements of different users are met conveniently; and the sitting posture comfort is indirectly improved.

Description

Technical Field

[0001] The utility model relates to a sofa chair, in particular to an adjustable sofa chair. Background Art

[0002] A sofa chair is a seat designed for single use, with a variety of materials and styles. Sofa chairs come in a variety of styles, including leather, fabric, metal, rattan, and solid wood. Sofa chairs are widely suitable for various occasions.

[0003] The patent with the patent authorization announcement number CN218852293U discloses a sofa chair, including a base frame, armrests and a seat, wherein the armrests are rotatably mounted on the base frame; the seat includes a seat and a backrest, and the seat is arranged on the top of the base frame. Although the above patent can adjust the position of the armrests in the circumferential direction of the seat by setting a rotatable armrest, there are still some shortcomings in actual use. For example, different users have different backrest requirements, and the backrest is arranged on the back side of the seat, so the position of the backrest is fixed, resulting in the user sitting on the seat, and the backrest can only maintain one backrest angle when the back contacts the backrest, which cannot meet the backrest requirements of different users and indirectly reduces the comfort of sitting posture.

[0004] Therefore, a kind of adjustable sofa chair is particularly needed to solve the problems existing in the prior art. Utility Model Content

[0005] In order to overcome the disadvantages of the prior art that when a user sits on the chair, the back can only maintain one backrest angle when in contact with the chair back, thereby failing to meet the backrest needs of different users and indirectly reducing the comfort of sitting posture, the utility model provides an adjustable sofa chair.

[0006] The utility model is realized through the following technical approaches: an adjustable sofa chair comprises a frame, a seat cushion, a support block, a support rod, a rotating block, a volute spring, a support frame and a latch, the upper part of the frame is connected with the seat cushion, the left side of the upper part of the frame is fixedly connected with the support block, the support block is rotatably connected with the support rod inside, a plurality of longitudinally distributed rotating blocks are fixedly connected to the support rod, a plurality of straight grooves aligned with the rotating block are provided on the left side of the support block, so that the rotating block passes through the outside of the support block when rotating, a plurality of longitudinally distributed volute springs are connected to the support rod, the front and rear sides of the volute spring are respectively connected with two adjacent rotating blocks, a support frame is fixedly connected between the tops of the plurality of rotating blocks, a latch is slidably connected with the rear side of the left part of the support block, the latch is clamped with the support rod, so that the support rod is fixed inside the support block, the latch is pulled out to move backward to disengage from the clamping connection with the support rod, and then the support frame is rotated to the left to adjust the backrest angle, and after adjustment, the latch is pushed forward to move forward to re-clamp with the support rod.

[0007] More preferably, a backrest pad is further included, and the backrest pad is connected to the support frame.

[0008] More preferably, it also includes a support plate I and a sliding foot pad. The support plate I is installed at the lower middle part of the frame, and the sliding foot pad is slidably connected inside the support plate I. By pulling the sliding foot pad to the right, the length of the seat cushion can be extended.

[0009] More preferably, it also includes a guide rod I, a connecting block, a spring I, a support plate II, a guide rod II, an oblique block, a spring II, a top plate and an oblique plate, the lower inner part of the support plate I is fixedly connected to a front-and-rear symmetrical guide rod I, the left side of the bottom of the sliding foot pad is connected to a symmetrically distributed connecting block, the connecting block is slidably connected to the guide rod I, a spring I for auxiliary resetting is sleeved on the guide rod I, the two ends of the spring I are respectively connected to the connecting block and the support plate I, the left side of the bottom of the support plate I is fixedly connected to a front-and-rear distributed support plate II, the support plate II is located on the left side of the connecting block and contacts with it, the support plate II is fixedly connected to a symmetrically distributed guide rod II, an oblique block is slidably connected between the two guide rods II, the oblique block passes through the support plate II, and is located at the connecting block The right side of the block contacts it, so that the connecting block is limited on the guide rod I, and a spring II for assisting resetting is sleeved on the guide rod II, and both ends of the spring II are respectively connected to the oblique block and the guide rod II, and the oblique block is fixedly connected with a top plate, and the left side of the lower part of the support block is slidably connected with an oblique plate distributed front and back, and the oblique plate can move vertically downward and horizontally backward, wherein the two rotating blocks are respectively aligned with the two oblique plates, so that the oblique plate is squeezed to move downward when the rotating block rotates, and the oblique plate is located above the top plate, so that the oblique plate can squeeze the top plate, and the rotating block is rotated to the left to squeeze the oblique plate downward, and the oblique plate squeezes the top plate to move inward, and the top plate drives the oblique block to move inward and disengage from the connecting block, so that the spring I assists the sliding foot pad to move to the right.

[0010] More preferably, a damping pad is provided between the inclined plate and the support block to increase friction so that the inclined plate does not move on its own.

[0011] More preferably, it further comprises a limiting block, the left side of the lower part of the support block is fixedly connected with the limiting blocks distributed front and back, and the inclined plate is in sliding contact with the limiting blocks.

[0012] More preferably, a push rod is further included, and the push rod is slidably connected to the left side of the lower part of the support plate I, and the inclined plate is slidably connected to the push rod.

[0013] From the above description of the structure of the utility model, it can be seen that the design starting point, concept and advantages of the utility model are: 1. By setting a rotatable support rod, a rotating block, a scroll spring and a support frame, the latch is pulled backward to disengage the support rod, and then the support frame is rotated to the left to a suitable angle, so that the backrest cushion, the support rod and the rotating block are rotated to the left, thereby achieving the purpose of adjusting the backrest angle, which is convenient for meeting the backrest needs of different users and indirectly improves the sitting comfort.

[0014] 2. By setting the sliding foot pad, connecting block and inclined block, the rotating block rotates to squeeze the inclined plate downward, so that the top plate drives the inclined block to move inward, and the inclined block is out of contact with the connecting block. At this time, the spring I returns to its original state, causing the sliding foot pad to move to the right and pop out of the support plate I, thereby extending the length of the seat cushion, allowing the user to place his legs on the sliding foot pad for stretching, and further improving the comfort of the sitting posture. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0016] Figure 2 It is a three-dimensional structural schematic diagram of the supporting frame, supporting blocks, sliding pads and other components of the utility model.

[0017] Figure 3 It is a three-dimensional cross-sectional structural schematic diagram of the rotating block, scroll spring, latch and other components of the utility model.

[0018] Figure 4 It is a three-dimensional cross-sectional structural schematic diagram of the guide rod Ⅰ, the connecting block and the spring Ⅰ of the utility model.

[0019] Figure 5 It is a three-dimensional structural schematic diagram of the support plate I, the support plate II and the top plate of the utility model.

[0020] Figure 6 It is a three-dimensional structural schematic diagram of the guide rod II, spring II, top plate and other components of the utility model.

[0021] Figure 7 It is a three-dimensional structural schematic diagram of the components such as the latch, the limit block and the push rod of the utility model.

[0022] Figure 8 It is a three-dimensional structural schematic diagram of the supporting block, the limiting block and the inclined plate and other components of the utility model.

[0023] The meanings of the reference numerals in the figure are: 1. frame, 2. seat cushion, 3. support frame, 4. back cushion, 5. support block, 6. support rod, 7. rotating block, 8. scroll spring, 9. latch, 10. support plate I, 11. sliding foot pad, 12. guide rod I, 13. connecting block, 14. spring I, 15. support plate II, 16. oblique block, 17. guide rod II, 18. spring II, 19. top plate, 20. limit block, 21. oblique plate, 22. push rod. DETAILED DESCRIPTION

[0024] 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.

[0025] Embodiment: An adjustable sofa chair, see Figure 1-Figure 3 and Figure 7-Figure 8 As shown, it includes a frame 1, a seat cushion 2, a support block 5, a support rod 6, a rotating block 7, a volute spring 8, a support frame 3, a backrest cushion 4 and a latch 9. The upper part of the frame 1 is connected to the seat cushion 2, and the left side of the upper part of the frame 1 is connected to the support block 5 by welding. The support block 5 is internally connected to the support rod 6 for rotation. The support rod 6 is connected to a plurality of longitudinally distributed rotating blocks 7 by welding. The left side of the support block 5 is provided with a plurality of slots aligned with the rotating block 7, so that the rotating block 7 passes through the outside of the support block 5 when rotating. The support rod 6 is connected to the longitudinal A plurality of spiral springs 8 are distributed, and the front and rear sides of the spiral springs 8 are respectively connected to two adjacent rotating blocks 7, and a support frame 3 is connected between the tops of the plurality of rotating blocks 7 by welding, and a backrest cushion 4 is connected to the support frame 3. A latch 9 is slidably connected to the left rear side of the support block 5, and the latch 9 is engaged with the support rod 6, so that the support rod 6 is fixed inside the support block 5. The latch 9 is pulled out to move backward to disengage the support rod 6, and then the support frame 3 is rotated to the left to adjust the backrest angle. After adjustment, the latch 9 is pushed forward to move forward and re-engage with the support rod 6.

[0026] See also Figure 1-Figure 2 and Figure 4-Figure 8As shown, it also includes a support plate Ⅰ10, a sliding foot pad 11, a guide rod Ⅰ12, a connecting block 13, a spring Ⅰ14, a support plate Ⅱ15, a guide rod Ⅱ17, an oblique block 16, a spring Ⅱ18, a top plate 19, a limit block 20 and a push rod 22. The lower part of the frame 1 is connected to the support plate Ⅰ10 by bolts, and the sliding foot pad 11 is slidably connected inside the support plate Ⅰ10. The lower part of the support plate Ⅰ10 is connected to the front and rear symmetrical guide rod Ⅰ12 by welding. The left side of the bottom of the sliding foot pad 11 is connected to the symmetrically distributed connecting block 13, and the connecting block 13 is slidably connected to the guide rod Ⅰ12 Then, a spring Ⅰ14 for assisting resetting is sleeved on the guide rod Ⅰ12, and the two ends of the spring Ⅰ14 are respectively connected to the connecting block 13 and the support plate Ⅰ10. The left side of the bottom of the support plate Ⅰ10 is connected to the front and rear distributed support plates Ⅱ15 by welding. The support plate Ⅱ15 is located on the left side of the connecting block 13 and contacts with it. The support plate Ⅱ15 is connected to the symmetrically distributed guide rods Ⅱ17 by welding. An oblique block 16 is slidably connected between the two guide rods Ⅱ17. The oblique block 16 passes through the support plate Ⅱ15 and is located on the right side of the connecting block 13 and contacts with it, so that the connecting block 13 is limited to the guide rod Ⅰ12, a spring Ⅱ18 for assisting resetting is sleeved on the guide rod Ⅱ17, and both ends of the spring Ⅱ18 are respectively connected to the oblique block 16 and the guide rod Ⅱ17, and the oblique block 16 is connected to the top plate 19 by welding. The left side of the lower part of the support block 5 is slidably connected to the front and rear distributed oblique plates 21, and the oblique plates 21 can move vertically downward and horizontally backward. The two rotating blocks 7 are respectively aligned with the two oblique plates 21, so that the rotating blocks 7 are rotated to squeeze the oblique plates 21 to move downward, and the oblique plates 21 are located above the top plate 19, so that the oblique plates 21 can squeeze the top plate 19, and the oblique plates 21 and Damping pads are provided between the support blocks 5 to increase friction so that the inclined plate 21 does not move on its own. The left side of the lower part of the support block 5 is connected to the limit blocks 20 distributed front and back by welding. The inclined plate 21 is in sliding contact with the limit blocks 20. The left side of the lower part of the support plate I10 is slidingly connected to the push rod 22. The inclined plate 21 is slidingly connected to the push rod 22. The rotating block 7 is rotated to the left to squeeze the inclined plate 21 to move downward. The inclined plate 21 squeezes the top plate 19 to move inward. The top plate 19 drives the inclined block 16 to move inward and disengage from the connecting block 13, so that the spring I14 assists the sliding foot pad 11 to move to the right.

[0027] When it is necessary to sit on the sofa chair to rest, the user first pulls out the latch 9 to move backward and disengage the support rod 6, then rotates the support frame 3 to the left, the support frame 3 drives the backrest cushion 4 and the support rod 6 to rotate to the left, the support rod 6 drives the multiple rotating blocks 7 to rotate to the left, and the spiral spring 8 is deformed accordingly. When the support frame 3 is rotated to a suitable angle, the rotation of the support frame 3 is stopped, so as to achieve the purpose of adjusting the backrest angle, which is convenient for meeting the backrest needs of different users and indirectly improves the comfort of sitting posture, and then pushes the latch 9 forward to move and re-engage with the support rod 6 to fix the support rod 6 in the support block 5. , to prevent the support frame 3 from rotating. Initially, the spring I 14 is in a stretched state. When the multiple rotating blocks 7 rotate, the two rotating blocks 7 on the front and rear sides respectively squeeze the two inclined plates 21 to move downward, so that the inclined plates 21 squeeze the top plate 19, so that the top plate 19 drives the inclined block 16 to move inward, and the spring II 18 is compressed accordingly, so that the inclined block 16 is out of contact with the connecting block 13. At this time, the spring I 14 returns to its original state, so that the sliding foot pad 11 moves to the right and pops out from the supporting plate I 10, thereby extending the length of the seat cushion 2. Then the user sits on the seat cushion 2 and puts his back Leaning on the backrest cushion 4, and then placing both legs on the sliding foot pad 11 to stretch, the comfort of the sitting posture is further improved. When the sliding foot pad 11 is not needed at the beginning, the user pulls the push rod 22 to move backward in advance, and the push rod 22 drives the two inclined plates 21 to move backward, thereby staggering the two rotating blocks 7 at the front and rear sides, so that the sliding foot pad 11 will not pop out from the support plate Ⅰ10. When the inclined plate 21 moves backward, the limit block 20 plays a limiting role, so that the inclined plate 21 is blocked by the limit block 20 when it moves backward to a suitable position. When the sofa chair needs to be restored to its original state, A person pushes the sliding foot pad 11 to move to the left, and the spring I14 is compressed accordingly. Then the latch 9 is pulled out to disengage the support rod 6, and the spiral spring 8 is restored to its original state, so that the support rod 6 drives the rotating block 7 to rotate right, and the rotating block 7 drives the support frame 3 to rotate right to reset. At this time, the rotating block 7 is disengaged from the inclined plate 21, so that the inclined plate 21 no longer has the force to squeeze the top plate 19, and the spring II18 is restored to its original state, so that the inclined block 16 moves outward and contacts the connecting block 13, limiting the connecting plate on the guide rod I12, and also limiting the sliding foot pad 11 in the support plate I10.

[0028] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes may be made to the embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An adjustable sofa chair, characterized by: The invention comprises a frame (1), a seat cushion (2), a support block (5), a support rod (6), a rotating block (7), a spiral spring (8), a support frame (3) and a latch (9); the upper part of the frame (1) is connected with the seat cushion (2); the left side of the upper part of the frame (1) is fixedly connected with the support block (5); the support block (5) is rotatably connected with the support rod (6); a plurality of rotating blocks (7) are fixedly connected to the support rod (6); a plurality of spiral springs (8) are connected to the support rod (6); the front and rear sides of the spiral spring (8) are respectively connected with two adjacent rotating blocks (7); the tops of the plurality of rotating blocks (7) are fixedly connected with the support frame (3); the rear side of the left part of the support block (5) is slidably connected with the latch (9); the latch (9) is clamped with the support rod (6).

2. An adjustable sofa chair according to claim 1, characterized in that: It also includes a backrest pad (4), and the backrest pad (4) is connected to the support frame (3).

3. An adjustable sofa chair according to claim 2, characterized in that: It also includes a support plate I (10) and a sliding foot pad (11). The support plate I (10) is installed at the lower middle part of the frame (1), and the sliding foot pad (11) is slidably connected inside the support plate I (10).

4. An adjustable sofa chair according to claim 3, characterized in that: The invention also comprises a guide rod I (12), a connecting block (13), a spring I (14), a support plate II (15), a guide rod II (17), an oblique block (16), a spring II (18), a top plate (19) and an oblique plate (21). The lower part of the support plate I (10) is fixedly connected with a front-to-rear symmetrical guide rod I (12). The left side of the bottom of the sliding pad (11) is connected with a symmetrically distributed connecting block (13). The connecting block (13) is slidably connected with the guide rod I (12). The guide rod I (12) is sleeved with a spring I (14). The support plate I (10) is fixedly connected with a front-to-rear symmetrical guide rod I (12). 0) A support plate II (15) distributed front and back is fixedly connected to the left side of the bottom, a guide rod II (17) distributed symmetrically is fixedly connected to the support plate II (15), an oblique block (16) is slidably connected between the two guide rods II (17), a spring II (18) for assisting resetting is sleeved on the guide rod II (17), two ends of the spring II (18) are respectively connected to the oblique block (16) and the guide rod II (17), a top plate (19) is fixedly connected to the oblique block (16), and an oblique plate (21) distributed front and back is slidably connected to the left side of the lower part of the support block (5).

5. The adjustable sofa chair according to claim 4, characterized in that: A damping pad is provided between the inclined plate (21) and the support block (5) to increase friction so that the inclined plate (21) does not move on its own.

6. The adjustable sofa chair according to claim 5, characterized in that: It also comprises a limiting block (20), the lower left side of the support block (5) is fixedly connected with the limiting block (20) distributed front and back, and the inclined plate (21) is in sliding contact with the limiting block (20).

7. An adjustable sofa chair according to claim 6, characterized in that: It also includes a push rod (22), the push rod (22) is slidably connected to the left side of the lower part of the support plate I (10), and the inclined plate (21) is slidably connected to the push rod (22).

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