Back pushing type seat

Abstract

The back pushing type seat comprises a seat cushion, a supporting rod, a stand column, a bottom foot and a backrest plate, the bottom of the seat cushion is connected with the top of the stand column, the bottom of the stand column is connected with the bottom foot, the front end and the rear end of the bottom of the seat cushion are respectively connected with a first bottom plate, the front end and the rear end of the top of the stand column are respectively connected with a second bottom plate through a first plug pin, and the second bottom plate is connected with a second hinge plate. The first hinge plate and the sixth hinge plate are connected through an eighth plug pin, the first hinge plate is connected with the fourth hinge plate through the sixth plug pin, the fourth hinge plate is connected with the third hinge plate through a fourth plug pin, the sixth hinge plate is connected with the second hinge plate through a seventh plug pin, the second hinge plate is connected with the third hinge plate through a third plug pin, and the second hinge plate is connected with the fifth hinge plate through a fifth plug pin. The fifth hinge plate is connected with the first hinge plate, the third hinge plate is connected with the bottom of the supporting rod through the ninth plug pin and the tenth plug pin respectively, the supporting rod is connected with the backrest plate through the connecting spring, the backrest plate can move front and back, and a user can sit on the chair more comfortably.

Description

Technical Field

[0001] The utility model relates to the technical field of seats, in particular to a push-back seat. Background Art

[0002] Seats can be seen everywhere in our daily life. Currently, the more common ones are fixed seats. Such seats are firmly installed and fixed during production and cannot be adjusted to a suitable position as needed during use. For some special occasions, such as when an adult or a child needs to sit, if the seat can be adjusted according to the body shape of the person, the sitting experience will be very good, and the use of the seat will be more extensive. Therefore, it is necessary to design a push-back seat that can meet the requirements of experience comfort and wide use. Content of the Utility Model

[0003] The utility model provides a push-back seat to solve the above problems.

[0004] The utility model adopts the following technical solutions:

[0005] A push-back seat, comprising a seat cushion, a support rod, a column, a foot and a backrest plate. The middle of the bottom of the seat cushion is connected to the top of the column, and the bottom of the column is connected to the foot. The front and rear ends of the bottom of the seat cushion are respectively connected to a first bottom plate. The front and rear ends of the top of the column are respectively connected to a second bottom plate through a first pin. The second bottom plate is connected to a second hinge plate. The left end of the first hinge plate is connected to one end of the sixth hinge plate through an eighth pin, and the right end of the first hinge plate is connected to one end of the fourth hinge plate through a sixth pin. The other end of the fourth hinge plate is connected to the third hinge plate through a fourth pin. The other end of the sixth hinge plate is connected to the left end of the second hinge plate through a seventh pin. The right end of the second hinge plate is connected to the third hinge plate through a third pin. The second hinge plate is connected to one end of the fifth hinge plate through a fifth pin. The other end of the fifth hinge plate is connected to the first hinge plate. The two third hinge plates are connected through a second pin. The third hinge plates are respectively connected to the bottom of the support rod through a ninth pin and a tenth pin. The top of the support rod is connected to the backrest plate through a connecting spring.

[0006] As a preferred technical solution of the utility model, a connecting block is connected to the left side of the foot, a foot pad block is connected to the connecting block, and a rubber stripe is arranged on the upper surface of the foot pad block.

[0007] As a preferred technical solution of the utility model, a lock catch is connected to the right end of the second bottom plate.

[0008] As a preferred technical solution of the utility model, the number of the backrest plate and the connecting spring is two each.

[0009] As a preferred technical solution of the utility model, the column adopts a hydraulic column cylinder.

[0010] The beneficial effects of the present utility model are as follows:

[0011] The seat of the present utility model is a push-back seat. When a person sits on the seat cushion, the weight presses down, and the first hinge plate moves downward. The fourth, fifth, and sixth hinge plates respectively connected to the first hinge plate move along with the first hinge plate. The fifth and sixth hinge plates are also connected to the second hinge plate, and the fourth and second hinge plates are connected to the third hinge plate. Finally, during the downward movement of the first hinge plate, the support rod connected to the third hinge plate will move forward, enabling the backrest plate connected to the support rod to fit the back of the human body, achieving better wrapping and support for the human back, and further improving the comfort and wide application of the seat. Description of the Drawings

[0012] Figure 1 is the right view of the seat of the present utility model;

[0013] Figure 2 is the front view of the seat of the present utility model;

[0014] Figure 3 is the rear view of the seat of the present utility model;

[0015] Figure 4 is the isometric view of the seat of the present utility model;

[0016] Figure 5 is the bottom view of the seat of the present utility model;

[0017] Figure 6 is the top view of the seat of the present utility model.

[0018] Explanation of Symbols in the Drawings:

[0019] 1: Seat cushion, 2: Support rod, 3: Column, 4: Foot pad, 5: Connection block, 6: Foot pad block, 7: Backrest plate, 8: Connection spring, 9: First bottom plate, 10: Second bottom plate, 11: First hinge plate, 12: Second hinge plate, 13: Third hinge plate, 14: Fourth hinge plate, 15: Fifth hinge plate, 16: Lock, 17: Sixth hinge plate, 18: First pin, 19: Second pin, 20: Third pin, 21: Fourth pin, 22: Fifth pin, 23: Sixth pin, 24: Seventh pin, 25: Eighth pin, 26: Ninth pin, 27: Tenth pin. Detailed Embodiment

[0020] Now, the present utility model will be further described in detail with reference to the drawings.

[0021] In the embodiments, it should be understood that the orientation or positional relationships indicated by the terms "middle", "upper", "lower", "top", "bottom", "right side", "left side", "above", "below", "back", "front", "middle part", "outer", "inner", etc. are based on the orientation or positional relationships shown in the drawings. These are only for the convenience of describing the embodiments and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the embodiments.

[0022] As Figures 1 to 6 shown, a push-back seat includes a seat cushion 1, support rods 2, columns 3, feet 4, and a backrest plate 7. The middle of the bottom of the seat cushion 1 is connected to the top of the column 3, and the bottom of the column 3 is connected to the feet 4. The front and rear ends of the bottom of the seat cushion 1 are respectively connected to a first bottom plate 9. The front and rear ends of the top of the column 3 are respectively connected to a second bottom plate 10 through a first pin 18. The second bottom plate 10 is connected to a second hinge plate 12. The left end of the first hinge plate 11 is connected to one end of a sixth hinge plate 17 through an eighth pin 25. The right end of the first hinge plate 11 is connected to one end of a fourth hinge plate 14 through a sixth pin 23. The other end of the fourth hinge plate 14 is connected to a third hinge plate 13 through a fourth pin 21. The other end of the sixth hinge plate 17 is connected to the left end of the second hinge plate 12 through a seventh pin 24. The right end of the second hinge plate 12 is connected to the third hinge plate 13 through a third pin 20. The second hinge plate 12 is connected to one end of a fifth hinge plate 15 through a fifth pin 22. The other end of the fifth hinge plate 15 is connected to the first hinge plate 11. The two third hinge plates 13 are connected through a second pin 19. The third hinge plates 13 are respectively connected to the bottom of the support rods 2 through a ninth pin 26 and a tenth pin 27. The top of the support rods 2 is connected to the backrest plate 7 through a connecting spring 8.

[0023] Further, a connecting block 5 is connected to the left side of the feet 4. A foot cushion block 6 is connected to the connecting block 5. A rubber strip is provided on the upper surface of the foot cushion block 6, and the rubber strip can increase the friction on the surface of the foot cushion block 6.

[0024] Further, a lock 16 is connected to the right end of the second bottom plate 10, and the position fixation for seat height adjustment can be achieved through the lock 16.

[0025] Further, the number of both the backrest plate 7 and the connecting springs 8 is two.

[0026] Further, the column 3 adopts a hydraulic column cylinder, and the up and down adjustment of the seat height can be realized.

[0027] The working principle of the present utility model:

[0028] When a person sits on the seat cushion 1, under the action of the human body weight and the column 3, the seat cushion 1 moves downward, the first hinge plate 11 moves downward, and the fourth hinge plate 14, the fifth hinge plate 15 and the sixth hinge plate 17 respectively connected to the first hinge plate 11 move along with the first hinge plate 11. The fifth hinge plate 15 and the sixth hinge plate 17 are also connected to the second hinge plate 12, and the fourth hinge plate 14 and the second hinge plate 12 are also connected to the third hinge plate 13. Finally, during the downward movement of the first hinge plate 11, it will pull the third hinge plate 13 to move towards the seat cushion 1, driving the connected support rod 2 to also move towards the seat cushion 1, so that the backrest plate 7 connected to the support rod 2 can fit the back of the human body.

[0029] Finally, it should be noted that these embodiments are only used to illustrate the present invention and do not limit the scope of the present invention. In addition, for those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to enumerate all the embodiments here. And the obvious changes or modifications derived therefrom are still within the protection scope of the present invention.

Claims

1. A push-back seat, comprising a seat cushion (1), a support rod (2), a column (3), a foot (4), and a backrest plate (7), characterized in that: The middle of the bottom of the seat cushion (1) is connected to the top of the vertical column (3), the bottom of the vertical column (3) is connected to the foot (4), the front and rear ends of the bottom of the seat cushion (1) are respectively connected with a first bottom plate (9), the front and rear ends of the top of the vertical column (3) are respectively connected with a second bottom plate (10) through a first pin (18), the second bottom plate (10) is connected to a second hinge plate (12), the left end of the first hinge plate (11) is connected to one end of the sixth hinge plate (17) through an eighth pin (25), the right end of the first hinge plate (11) is connected to one end of the fourth hinge plate (14) through a sixth pin (23), the other end of the fourth hinge plate (14) is connected to the third hinge plate (13) through a fourth pin (21), the other end of the sixth hinge plate (17) is connected to the left end of the second hinge plate (12) through a seventh pin (24), the right end of the second hinge plate (12) is connected to the third hinge plate (13) through a third pin (20), the second hinge plate (12) is connected to one end of the fifth hinge plate (15) through a fifth pin (22), the other end of the fifth hinge plate (15) is connected to the first hinge plate (11), the two third hinge plates (13) are connected through a second pin (19), and the third hinge plates (13) are respectively connected to the bottom of the support rod (2) through a ninth pin (26) and a tenth pin (27), and the top of the support rod (2) is connected to the backrest plate (7) through a connecting spring (8).

2. The push-back seat according to claim 1, characterized in that: A connecting block (5) is connected to the left side of the foot (4), a foot cushion block (6) is connected to the connecting block (5), and a rubber strip is arranged on the upper surface of the foot cushion block (6).

3. The a push-back seat according to claim 1, characterized in that: A lock catch (16) is connected to the right end of the second bottom plate (10).

4. The push-back seat according to claim 1, wherein: The number of the backrest plates (7) and the connecting springs (8) is two each.

5. The push-back seat according to claim 1, characterized in that: The vertical column (3) adopts a hydraulic type vertical column cylinder.

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