Sofa cushion with adjustable sitting feeling

Abstract

A sofa cushion with adjustable sitting feeling comprises a movable plate used for supporting the cushion, a fixed plate arranged at the lower end of the movable plate in parallel, and a supporting spring arranged between the movable plate and the fixed plate, the lifting plate is arranged at the lower end of the fixed plate; the supporting columns are arranged at the upper end of the lifting plate; the through holes are formed in the fixed plate, are matched with the supporting columns and are used for penetrating through the supporting columns; and the positioning column is arranged at the lower end of the movable plate, is inserted into the through hole and is used for being connected with the supporting column. The lowest positions of the positioning columns are determined according to the heights of the supporting columns, then the maximum deformation of the supporting springs is controlled, the sitting feeling of the cushion is adjusted, the heights of all the supporting columns can be synchronously adjusted, it is guaranteed that the sitting feelings of all positions of the cushion are the same, the structure for adjusting the sitting feeling is simplified, the installation difficulty and the adjustment difficulty are reduced, and the installation cost is reduced. The method has the advantages of high practicability and good economical efficiency.

Description

Technical Field

[0001] The utility model belongs to the technical field of furniture manufacturing and processing, and particularly relates to an adjustable sitting-sensation sofa cushion. Background Art

[0002] A sofa is a common piece of furniture in daily life. With the improvement of living standards, the sitting sensation of sofas has received more and more attention from consumers. A traditional sofa consists of a sofa frame and a sofa cushion, and the softness or hardness of the sitting sensation of the sofa is determined by the material and thickness of the sofa cushion. After consumers purchase a sofa, it is very difficult to replace the thick sofa cushion, resulting in a single sitting sensation of the sofa. However, since preferences for soft or hard sitting sensations vary from person to person, there is an urgent need for a sofa that can be conveniently adjusted in sitting sensation to meet the needs of different people for the sitting sensation of sofas.

[0003] A document with the authorization announcement number CN221044604U discloses a sitting-sensation adjustable sofa. The sofa body includes a front board, a backrest board and two side boards. An installation board is fixedly arranged inside the sofa. A plurality of springs of the same specification are arranged on the upper surface of the installation board. One end of each of the plurality of springs away from the installation board is fixedly connected to a movable board. A plurality of sliding grooves are formed on the surface of the movable board close to the installation board. Slide rails are arranged in the sliding grooves. Electric sliders are arranged on the slide rails. A plurality of rows of support columns are arranged on the surface of the electric slider close to the installation board. A plurality of rows of positioning counterbores are formed on the installation board.

[0004] The working principle of this device is as follows: when the sitting sensation of the sofa needs to be harder, the electric slider is adjusted so that the falling position of the support column when the user sits down is staggered from the position of the positioning counterbore. At this time, the support column abuts against the upper surface of the installation board, and the deformation amount of the spring is small, and the sitting sensation of the sofa is harder; when the sitting sensation of the sofa needs to be softer, the electric slider is adjusted so that the support column is exactly above the positioning counterbore. When the user sits down, the support column is inserted into the positioning counterbore. At this time, the support column abuts against the bottom surface of the positioning counterbore, and the deformation amount of the spring is large, and the sitting sensation of the sofa is softer.

[0005] However, this device still has the following problems: the electric sliders are distributed throughout the movable board. Therefore, the equipped motors either correspond one by one to the positions and quantities of the electric sliders, or the connection lines between each electric slider and the motor are of different lengths. Therefore, the circuit on the back of the movable board is complex, and the later maintenance is difficult. Summary of the Utility Model

[0006] In view of the above problems, the purpose of the present utility model is to provide an adjustable sitting feeling sofa cushion. The lowest position of the positioning column is determined by the height of the support column, and then the maximum deformation of the support spring is controlled to adjust the sitting feeling of the cushion. The heights of all support columns can be adjusted synchronously, ensuring the same sitting feeling at each part of the cushion, and simplifying the structure for adjusting the sitting feeling, reducing the installation difficulty and adjustment difficulty, with the advantages of strong practicability and good economy.

[0007] In order to achieve the above purpose, the technical solution of the present utility model is as follows:

[0008] An adjustable sitting feeling sofa cushion includes a movable plate for supporting the cushion, a fixed plate arranged in parallel at the lower end of the movable plate, and a support spring arranged between the movable plate and the fixed plate. It also includes a lifting plate arranged at the lower end of the fixed plate, a plurality of support columns arranged at the upper end of the lifting plate, a plurality of through holes arranged on the fixed plate and matching with the support columns for passing through the support columns, and positioning columns arranged at the lower end of the movable plate and inserted into the through holes for connecting with the support columns.

[0009] As a further preference of the present utility model, reinforcing plates are arranged on both the upper and lower surfaces of the fixed plate at the positions of the through holes, and through holes matching with the through holes are arranged on the reinforcing plates.

[0010] As a further preference of the present utility model, the support column includes a column body and a buffer layer arranged at the upper end of the column body.

[0011] As a further preference of the present utility model, the support column further includes a limiting column arranged on the side wall of the column body and a sliding groove arranged on the inner hole wall of the through hole and matching with the limiting column.

[0012] As a further preference of the present utility model, the support column further includes a ball arranged at the end of the limiting column far from the column body and slidingly connected with the sliding groove.

[0013] As a further preference of the present utility model, the support column further includes a limiting protrusion arranged at the end of the sliding groove far from the movable plate.

[0014] As a further preference of the present utility model, the lifting plate includes a main body plate parallel to the fixed plate, a connecting column arranged at the lower end of the main body plate, and a lifting motor connected with the connecting column.

[0015] As a further preference of the present utility model, the lifting plate further includes a spring sleeved on the support column and connected with the main body plate and the fixed plate at both ends.

[0016] As a further preference of the present utility model, the lifting plate further includes a support plate disposed between the main body plate and the lifting motor, and a mounting hole disposed on the support plate and through which the connecting column passes.

[0017] As a further preference of the present utility model, the support plate is fixedly connected to the frame.

[0018] As a further preference of the present utility model, the lifting motor is installed in a mounting cavity provided on the inner bottom surface of the frame.

[0019] As a further preference of the present utility model, two vertical limiting strips are respectively disposed on two inner side walls of the frame, and a protrusion slidably connected between the two limiting strips is disposed at the side end of the movable plate. Description of the Drawings

[0020] Appendix Figure 1 It is a schematic view of the back structure of Embodiment 1 of the present utility model from the front view angle.

[0021] Appendix Figure 2 It is a schematic view of the structure of Embodiment 1 of the present utility model from the top view angle.

[0022] Description of the Drawings: Cushion a, frame b, mounting cavity c;

[0023] Movable plate 11, fixed plate 12, support spring 13, limiting strip 14;

[0024] Reinforcing plate 121, opening 122;

[0025] Lifting plate 1, support column 2, through hole 3, positioning column 4;

[0026] Main body plate 101, connecting column 102, lifting motor 103, spring 104, support plate 105, mounting hole 106;

[0027] Column body 201, buffer layer 202, limiting column 203, sliding groove 204, ball 205, limiting protrusion 206. Detailed Description of the Embodiment

[0028] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "left", "right", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present utility model is usually placed during use, or the orientation or positional relationship commonly understood by those skilled in the art. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0029] In addition, terms such as "first" and "second" are only used for descriptive distinction and should not be construed as indicating or implying relative importance.

[0030] In the description of the present utility model, it should also be noted that unless otherwise clearly specified and defined, terms such as "arrangement" and "connection" should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection: it can be a mechanical connection or an electrical connection: it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0031] Embodiment 1

[0032] Generally speaking, a sofa includes a seat cushion a and a frame b. Among them, the frame b is surrounded by a bottom plate and a plurality of side plates. On this basis, the present embodiment provides an adjustable sitting feeling sofa cushion, which includes a movable plate 11 for supporting the seat cushion a, a fixed plate 12 arranged in parallel at the lower end of the movable plate 11, a support spring 13 arranged between the movable plate 11 and the fixed plate 12, and further includes a lifting plate 1 arranged at the lower end of the fixed plate 12, a plurality of support columns 2 arranged at the upper end of the lifting plate 1, a plurality of through holes 3 arranged on the fixed plate 12 and matching with the support columns 2 for passing through the support columns 2, and a positioning column 4 arranged at the lower end of the movable plate 11 and inserted into the through holes 3 for connecting with the support columns 2.

[0033] In this embodiment, two vertical limiting strips 14 are respectively arranged on two inner side walls of the frame b, and a protrusion is arranged at the side end of the movable plate 11 and is slidably connected between the two limiting strips 14. The movable plate 11 is slidably connected to the frame b through the above structure. The fixed plate 12 is fixedly installed on the frame b, and the installation position of the fixed plate 12 is lower than the lowest end of the movement of the movable plate 11. The through holes 3 are distributed on the fixed plate 12 at a certain interval. The positions and numbers of the support columns 2 correspond to the through holes 3 one by one, and the upper ends of the support columns 2 are always located in the through holes 3 and do not protrude from the upper surface of the fixed plate 12. The numbers and positions of the positioning columns 4 correspond to the through holes 3 one by one. When the movable plate 11 is forced to move downward, the movable plate 11 compresses the support spring 13, and the positioning column 4 is inserted into the through hole 3 until it abuts against the upper end of the support column 2. When the positioning column 4 abuts against the support column 2, the movable plate 11 cannot continue to move downward, and the deformation of the support spring 13 reaches the maximum value.

[0034] The working principle of the sofa cushion provided in this embodiment is as follows: When a relatively firm sitting feeling of the cushion is required, the position of the lifting plate is raised. At this time, the position of the support column in the through hole is relatively high, and the maximum deformation of the support spring is small; when a relatively soft sitting feeling of the cushion is required, the position of the lifting plate is lowered. At this time, the position of the support column in the through hole is relatively low, and the maximum deformation of the support spring is large.

[0035] Compared with the existing device, the advantage of the sofa cushion provided in this embodiment is that: the lowest position of the positioning column is determined by the height of the support column, and then the maximum deformation of the support spring is controlled to adjust the sitting feeling of the cushion. The heights of all support columns can be adjusted synchronously, ensuring the same sitting feeling at all parts of the cushion, and simplifying the structure for adjusting the sitting feeling, reducing the installation difficulty and adjustment difficulty, and having the advantages of strong practicability and good economy.

[0036] Embodiment 2

[0037] On the basis of Embodiment 1, this embodiment further optimizes the structure as follows:

[0038] Reinforcing plates 121 are provided on both the upper and lower surfaces of the fixing plate 12 at the position of the through hole 3, and through holes 122 matching the through hole 3 are provided on the reinforcing plates 121. Such a setting is beneficial to enhancing the support strength of the fixing plate 12 and avoiding cracking at the position of the through hole 3.

[0039] The support column 2 includes a column body 201 and a buffer layer 202 provided at the upper end of the column body 201. The buffer layer 202 can be selected from common buffer materials such as rubber, and the purpose is to reduce the impact strength between the support column and the positioning column and improve the service life.

[0040] The support column 2 further includes a limit column 203 provided on the side wall of the column body 201, a sliding groove 204 provided on the inner hole wall of the through hole 3 and matching the limit column 203, and a ball 205 provided at the end of the limit column 203 far from the column body 201 and slidably connected to the sliding groove 204. Such a setting is used to further improve the stability of the main body 201 rising and falling in the through hole 3, and the ball 205 is used to reduce the frictional wear between the limit column 203 and the sliding groove 204.

[0041] Among them, the number of the limit columns 203 can be two, symmetrically distributed on both sides of the column body 201. At this time, the number of the sliding grooves 204 is also two, corresponding to the positions of the limit columns 203; the limit column 203 can also be an annular plate arranged around the outer peripheral side of the column body 201. At this time, the number of the sliding grooves is one, and the shape is adapted to the annular plate.

[0042] The support column 2 further includes a limit protrusion 206 provided at the end of the sliding groove 204 away from the movable plate 11. The limit protrusion 206 can be an independent protrusion, corresponding to the state when the sliding grooves are independent of each other. Of course, it can also correspond to an annular sliding groove. When the sliding groove is annular, the limit protrusion 206 can also be in the form of an annular plate. Regardless of which of the above structures, the function of the limit protrusion 206 is to prevent the limit column 203 from continuing to move downward to avoid the column body 201 from disengaging from the through hole 3.

[0043] The lifting plate 1 includes a main body plate 101 parallel to the fixed plate 12, a connecting column 102 provided at the lower end of the main body plate 101, a lifting motor 103 connected to the connecting column 102, and a spring 104 sleeved on the support column 2 and connected to the main body plate 101 and the fixed plate 12 at both ends respectively. Among them, the lifting motor 103 is installed in an installation cavity c provided on the inner bottom surface of the frame b to reduce the occupation of the internal space of the frame b by the lifting motor 103. The lifting motor 103 is connected to an external controller, and the controller is a conventional structure, aiming to achieve the effect of controlling the lifting of the lifting motor 103 outside the sofa; the spring 104 is used to further improve the impact resistance of the column body 201 and enhance its buffering effect.

[0044] The lifting plate 1 further includes a support plate 105 provided between the main body plate 101 and the lifting motor 103, and an installation hole 106 provided on the support plate 105 and used for the connecting column 102 to pass through. The support plate 105 is fixedly connected to the frame b to improve the support strength at the lower end of the frame b.

[0045] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Those skilled in the art to which the present invention pertains can make various modifications or supplements to the described specific embodiments or use similar methods for substitution, but will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. An adjustable sitting-sensation sofa cushion, comprising a movable plate (11) for supporting the cushion (a), a fixed plate (12) arranged in parallel at the lower end of the movable plate (11), and a support spring (13) arranged between the movable plate (11) and the fixed plate (12), characterized in that: It further includes a lifting plate (1) disposed at the lower end of the fixed plate (12), a plurality of support columns (2) disposed at the upper end of the lifting plate (1), a plurality of through holes (3) disposed on the fixed plate (12) and matching with the support columns (2) for passing through the support columns (2), and a positioning column (4) disposed at the lower end of the movable plate (11) and inserted into the through holes (3) for connecting with the support columns (2).

2. The adjustable sitting feeling sofa cushion according to claim 1, characterized in that: Reinforcing plates (121) are disposed at the upper and lower surfaces of the fixed plate (12) at the positions of the through holes (3), and an opening (122) matching with the through holes (3) is disposed on the reinforcing plates (121).

3. The adjustable sitting feeling sofa cushion according to claim 1, characterized in that: The support column (2) includes a column body (201) and a buffer layer (202) disposed at the upper end of the column body (201).

4. The adjustable sitting feeling sofa cushion according to claim 3, characterized in that: The support column (2) further includes a limiting column (203) disposed on the side wall of the column body (201), and a sliding groove (204) disposed on the inner hole wall of the through hole (3) and matching with the limiting column (203).

5. The adjustable sitting feeling sofa cushion according to claim 4, characterized in that: The support column (2) further includes a ball (205) disposed at the end of the limiting column (203) far from the column body (201) and slidably connected with the sliding groove (204).

6. The adjustable sitting-feeling sofa cushion according to claim 4, wherein: The support column (2) further includes a limiting protrusion (206) disposed at the end of the sliding groove (204) far from the movable plate (11).

7. The adjustable sitting feeling sofa cushion according to claim 1, wherein: The lifting plate (1) includes a main body plate (101) parallel to the fixed plate (12), a connecting column (102) disposed at the lower end of the main body plate (101), and a lifting motor (103) connected with the connecting column (102).

8. The adjustable sitting feeling sofa cushion according to claim 7, characterized in that: The lifting plate (1) further includes a spring (104) sleeved on the support column (2) and connected with the main body plate (101) and the fixed plate (12) at both ends respectively.

9. The adjustable sitting-feeling sofa cushion according to claim 7, wherein: The lifting plate (1) further includes a support plate (105) disposed between the main body plate (101) and the lifting motor (103), and a mounting hole (106) disposed on the support plate (105) for the connecting column (102) to pass through.

10. The adjustable sitting feeling sofa cushion according to claim 9, wherein: The support plate (105) is fixedly connected with the frame (b).

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