Seat cushion and seat with same

Abstract

The seat cushion comprises a seat cushion body and further comprises a seat surface adjusting mechanism, the seat surface adjusting mechanism comprises an air bag and an inflation and deflation device communicated with the air bag, the air bag is arranged on the front end face of the seat cushion body, and the inflation and deflation device is arranged on the front end face of the seat cushion body. And the air bag is configured to be capable of increasing the depth of the seat surface after being pressurized and expanded by the inflating and deflating device. By additionally arranging the seat surface adjusting mechanism, when the depth of the seat surface needs to be adjusted, the air bag can be controlled to be inflated or contracted through the inflation and deflation device, when the air bag is inflated, the depth of the seat surface can be increased, users of different body types can be adapted, operation is convenient, and cost is low.

Description

Technical Field

[0001] The utility model relates to the technical field of seats, in particular to a seat cushion and a seat having the same. Background Art

[0002] The design of some dimensions of the seat cushion on a chair or sofa is very important. The front width, seat depth, seat height and other dimensions of the seat cushion are closely related to the user's comfort. For example, if the front width (the dimension of the seat cushion in the left and right direction excluding the armrests) is too small, the user will feel cramped and uncomfortable; if the seat height (the dimension between the upper surface of the seat cushion and the ground) is too high, the user's feet will be suspended in the air and laborious; if the seat height is too low, the knees will be raised too high and fatigued; if the seat depth (the dimension of the seat cushion in the front and back direction, if the seat cushion has a backrest, it refers to the dimension of the seat cushion in the front and back direction excluding the backrest) is too large, the user's calves will not be able to droop naturally and the calves will be compressed; if the seat depth is too small, the user will not be able to sit down. Among them, the seat depth is generally 400-500mm. For users of different body shapes, it is necessary to design a suitable seat depth size for the seat cushion, which increases the design and manufacturing costs. When the user feels that the seat cushion depth is not appropriate, in addition to replacing the seat or sofa with the seat cushion installed as a whole, the user can only replace the seat cushion with a different size, and at the same time, the chassis under the seat cushion also needs to be replaced simultaneously. The replacement operation is cumbersome and costly. Utility Model Content

[0003] The utility model aims to provide a seat cushion and a chair having the same, which can adjust the seat surface depth of the seat cushion according to user needs, so as to be adaptable to users of different body shapes.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A seat cushion comprises a seat cushion body, the seat cushion also comprising a seat surface adjustment mechanism, the seat surface adjustment mechanism comprising an airbag and an inflation and exhaust device connected to the airbag, the airbag is arranged at the front end surface of the seat cushion body, and the airbag is configured to increase the seat surface depth after being pressurized and inflated by the inflation and exhaust device.

[0006] Preferably, the seat adjustment mechanism further comprises an elastic cloth covering the front end surface of the seat cushion body, and the airbag is covered by the elastic cloth and fixed to the front end surface of the seat cushion body.

[0007] Preferably, the seat cushion body comprises a seat cushion base and a covering layer covering the outside of the seat cushion base, and the stretch fabric is sewn and fixed on the covering layer.

[0008] Preferably, the seat adjustment mechanism further comprises an elastic support body matched with the shape of the elastic cloth, and the elastic support body is located between the airbag and the elastic cloth.

[0009] Preferably, the inflation and exhaust device is a pressurized balloon or an electric air pump.

[0010] Preferably, the airbag has an air inlet and outlet pipe, and the inflation and exhaust device has a connecting pipe, and the connecting pipe is sealed and connected to the air inlet and outlet pipe.

[0011] Preferably, the inflation and exhaust device is arranged on the side of the cushion body, the inlet and outlet air pipes are arranged on a side surface of the airbag facing the front end face of the cushion body, and the connecting pipe extends through the side of the cushion body and extends from the front end face of the cushion body to be sealed and connected with the inlet and outlet air pipes.

[0012] Preferably, the seat adjustment mechanism further comprises a support lining plate, the support lining plate is arranged between the front end surface of the seat cushion body and the airbag, and the support lining plate is provided with a through hole for the connecting pipe to pass through.

[0013] Preferably, a mounting groove is formed on the front end surface of the seat cushion body, and the support lining plate is embedded in the mounting groove.

[0014] In addition, to achieve the above purpose, the utility model also adopts the following technical solutions:

[0015] A seat comprises a base, and the seat further comprises a seat cushion as described in any one of the above technical solutions, wherein the seat cushion is arranged on the base.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] By adding a seat adjustment mechanism, when the seat depth needs to be adjusted, the inflation or deflation of the airbag can be controlled by the inflation and exhaust device. When the airbag is inflated, the seat depth can be increased, which can adapt to users of different body shapes, and is easy to operate and low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A structural schematic diagram of a seat cushion provided in an embodiment of the present application;

[0019] Figure 2 This is an exploded view of the seat cushion;

[0020] Figure 3 is a cross-sectional view of a seat cushion;

[0021] Figure 4 for Figure 3 A magnified schematic diagram of part A;

[0022] Figure 5 Schematic diagram of the structure of the airbag.

[0023] Among them, 1. seat cushion body; 10. seat cushion base; 100. through groove; 101. mounting groove; 11. covering layer; 2. airbag; 20. air inlet and outlet pipes; 3. inflation and exhaust device; 30. connecting pipe; 4. elastic fabric; 5. elastic support body; 6. support lining; 60. perforation. DETAILED DESCRIPTION

[0024] Below, in conjunction with the accompanying drawings and specific implementation methods, the utility model is further described. It should be noted that, under the premise of no conflict, the various embodiments described below or the various technical features can be arbitrarily combined to form a new embodiment. Except for special instructions, the materials and equipment used in this embodiment can be purchased from the market. Examples of the embodiments are shown in the accompanying drawings, in which the same or similar numbers throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0025] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present application. In the description of the present application, "plurality" means two or more, unless otherwise precisely and specifically specified.

[0026] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "connected", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, or it can be connected through an intermediary medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0027] This embodiment provides a seat cushion, such as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown in , the seat cushion includes a seat cushion body 1 and a seat surface adjustment mechanism, the seat surface adjustment mechanism includes an airbag 2 and an inflating and exhausting device 3 connected to the airbag 2, the airbag 2 is arranged at the front end surface of the seat cushion body 1, and the airbag 2 is configured to increase the seat surface depth after being pressurized and inflated by the inflating and exhausting device 3. Figure 3As shown in the figure, the "front" in the front end face of the seat cushion body 1 refers to the direction the user faces when sitting on the seat cushion. The seat surface depth refers to the effective length dimension of the entire seat cushion along the front-to-back direction for the user to sit on.

[0028] By adding a seat adjustment mechanism, when the seat depth needs to be adjusted, the airbag 2 can be controlled to expand or contract through the inflation and exhaust device 3. When the airbag 2 expands, the seat depth can be increased, and when the airbag 2 contracts, the seat depth can be reduced. It can be adapted to users of different body shapes, and is easy to operate and low in cost. In addition, the front end of the seat cushion in the related art is generally designed to be hard and lacks comfort. The seat cushion provided by this embodiment can also adjust the elastic force of the front end of the seat cushion by adjusting the inflation degree of the airbag 2, further improving the comfort.

[0029] Combination Figure 2 and Figure 5 As shown in the figure, the airbag 2 in this embodiment is adapted to the front end surface of the seat cushion body 1 in shape. Specifically, the airbag 2 includes two pieces of bag sheets whose shapes are adapted to the front end surface of the seat cushion body 1. The bag sheets can be made of elastic materials such as rubber. When the air-inflating and exhausting device 3 is used to inflate and pressurize the inside of the airbag 2, the airbag 2 will deform and swell. In this way, the overall size of the seat cushion in the front-to-back direction increases, that is, the seat surface depth of the seat cushion increases.

[0030] like Figure 2 As shown in , the seat adjustment mechanism also includes an elastic cloth 4 covering the front end surface of the seat cushion body 1, and the airbag 2 is positioned and installed to the front end surface of the seat cushion body 1 through the elastic cloth 4. Specifically, the airbag 2 is placed at the front end surface of the seat cushion body 1, and then the elastic cloth 4 is covered on the outside of the airbag 2, and the elastic cloth 4 is sewn on the seat cushion body 1, so that the airbag 2 can be wrapped by the elastic cloth 4 and positioned at the front end surface of the seat cushion body 1. Further, the seat cushion body 1 includes a seat cushion base 10 and a covering layer 11 covering the outside of the seat cushion base 10. In this embodiment, the elastic cloth 4 is sewn and fixed to the covering layer 11. It is easy to understand that the seat cushion body 1 is generally provided with a seat cushion base 10 and a covering layer 11, and generally the seat cushion base 10 is made of sponge material and the covering layer 11 is made of leather material. In different embodiments, the covering layer 11 may include a front covering portion covering the front end surface of the seat cushion body 1, so that a covering layer 11 (front covering portion) is present between the front end surfaces of the airbag 2 and the seat cushion base 10; the covering layer 11 may also not include the aforementioned front covering portion, but only include an upper covering portion and a side covering portion covering the upper surface and side surfaces of the seat cushion body 1. In this case, there is no covering layer 11 between the front end surfaces of the airbag 2 and the seat cushion base 10.

[0031] The airbag 2 is positioned by setting the elastic fabric 4. At the same time, the elastic fabric 4 can adapt to the expansion and contraction of the airbag 2 through elastic deformation without affecting the seat adjustment operation. In addition, the elastic fabric 4 can be selected from different materials, patterns, etc. as needed to improve the aesthetics and comfort of skin contact.

[0032] It should be noted that, in one embodiment, the seat cushion is not provided with elastic cloth 4, and the airbag 2 is positioned at the front end surface of the seat cushion body 1 in other ways, for example, the outer surface of the airbag 2 can be extended to form a flange (the flange can be made of the same material as the airbag 2), and the airbag 2 is positioned on the cover layer 11 by sewing the flange. In this case, the seat surface depth of the seat cushion is calculated by extending backward from the front end surface of the airbag 2. In this embodiment, the seat cushion is provided with elastic cloth 4, and the seat surface depth of the seat cushion is calculated by extending backward from the front end surface of the elastic cloth 4.

[0033] When the airbag 2 is inflated to a large extent, the airbag 2 may be hard. To improve the comfort, the seat adjustment mechanism in this embodiment further includes an elastic support body 5 that matches the shape of the elastic cloth 4. The elastic support body 5 is located between the airbag 2 and the elastic cloth 4. Specifically, the elastic support body 5 is made of sponge material. Like the airbag 2, the elastic support body 5 is also positioned at the front end surface of the seat cushion body 1 by being covered and pressed by the elastic cloth 4.

[0034] The airbag 2 in this embodiment has an air inlet and outlet pipe 20, and the inflation and exhaust device 3 has a connecting pipe 30, which is sealed and connected to the air inlet and outlet pipe 20. Figure 2 , Figure 3 and Figure 4 As shown in the figure, in this embodiment, the inflation and exhaust device 3 is arranged on the side of the seat cushion body 1, the air inlet and outlet pipes 20 are arranged on the side surface of the airbag 2 facing the front end surface of the seat cushion body 1, and the connecting pipe 30 extends through the side of the seat cushion body 1 and extends from the front end surface of the seat cushion body 1 to be sealed and connected with the air inlet and outlet pipes 20. Correspondingly, when the seat cushion base 10 is manufactured, a through groove 100 is formed inside it, and the connecting pipe 30 of the inflation and exhaust device 3 is placed in the through groove 100. The connecting pipe 30 is a hose, for example, made of rubber material, and when assembling, the connecting pipe 30 can be extended from one end port of the through groove 100 and then extended from the other side port thereof.

[0035] In other optional embodiments, the inflating and exhausting device 3 may also be arranged at the bottom of the seat cushion, or, when the seat cushion is applied to a seat, the inflating and exhausting device 3 may also be arranged on a chassis below the seat cushion. Similarly, the connecting pipe 30 on the airbag 2 may also be arranged at other positions according to the needs of installation.

[0036] The inflating and exhausting device 3 in this embodiment is a pressurized balloon or an electric air pump. When a pressurized balloon is used as the inflating and exhausting device 3, the user needs to manually squeeze the pressurized balloon to inflate and pressurize the airbag 2, and press the exhaust valve of the pressurized balloon when deflation is required. When an electric air pump is used as the inflating and exhausting device 3, its operation can be electrically controlled, which is more convenient to operate.

[0037] As mentioned above, the seat cushion base 10 in the seat cushion body 1 is generally made of sponge. In order to prevent the airbag 2 from excessively squeezing the seat cushion body 1 during the pressurization and expansion process, causing a large local deformation of the seat cushion body 1, the seat adjustment mechanism in this embodiment also includes a support lining 6, and the support lining 6 is arranged between the front end surface of the seat cushion body 1 and the airbag 2. The support lining 6 can be made of a rigid material such as hard plastic or stainless steel metal. The support lining 6 is placed between the front end surface of the seat cushion body 1 and the airbag 2. In this way, when the airbag 2 is pressurized and expanded, pressure can be applied to the seat cushion body 1 through the support lining 6 to prevent large local deformation of the seat cushion body 1. It is easy to understand that, combined with Figure 4 As shown in the figure, when the connection scheme between the inflation and exhaust device 3 and the airbag 2 in this embodiment is adopted, a through hole 60 for the connecting pipe 30 to pass through can be provided on the supporting lining plate 6, so as to facilitate the connection between the connecting pipe 30 and the air inlet and outlet pipes 20.

[0038] Furthermore, in order to facilitate the assembly operation, in this embodiment, a mounting groove 101 is formed on the front end surface of the seat cushion body 1, and the support lining 6 is embedded and installed in the mounting groove 101. The support lining 6, the airbag 2 and the elastic support body 5 are all positioned at the front end surface of the seat cushion body 1 by the pressure exerted by the elastic cloth 4. In addition, as mentioned above, the covering layer 11 in the seat cushion body 1 may include a front covering portion covering the front end surface of the seat cushion body 1. In this case, the support lining 6 is in contact with the front covering portion; the covering layer 11 may also not include the aforementioned front covering portion, but only include an upper covering portion and a side covering portion covering the upper surface and side surfaces of the seat cushion body 1. In this case, the support lining 6 is in contact with the front end surface of the seat cushion base 10.

[0039] The seat cushion provided in this embodiment can be applied to a seat, specifically, the seat comprises a base and the seat cushion provided in this embodiment, and the seat cushion is arranged on the base. When the seat is in use, the user can adjust the seat surface depth of the seat cushion and the elasticity of the front end of the seat cushion according to his own needs to improve comfort.

[0040] Finally, it should be noted that the above-mentioned implementation modes are only optional embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A seat cushion, comprising a seat cushion body, characterized in that: The seat cushion also includes a seat surface adjustment mechanism, which includes an airbag and an inflation and exhaust device connected to the airbag. The airbag is arranged at the front end surface of the seat cushion body, and the airbag is configured to increase the seat surface depth after being pressurized and inflated by the inflation and exhaust device.

2. The seat cushion according to claim 1, characterized in that: The seat adjustment mechanism further comprises an elastic cloth covering the front end surface of the seat cushion body, and the airbag is covered by the elastic cloth and fixed to the front end surface of the seat cushion body.

3. The seat cushion according to claim 2, characterized in that: The seat cushion body comprises a seat cushion base and a covering layer covering the outside of the seat cushion base, and the elastic fabric is sewn and fixed on the covering layer.

4. The seat cushion according to claim 2, characterized in that: The seat adjustment mechanism further comprises an elastic support body matched with the shape of the elastic cloth, and the elastic support body is located between the airbag and the elastic cloth.

5. The seat cushion according to claim 1, characterized in that: The inflation and exhaust device is a pressurized balloon or an electric air pump.

6. The seat cushion according to any one of claims 1 to 5, characterized in that The airbag has an air inlet and outlet pipe, and the inflation and exhaust device has a connecting pipe, which is sealed and connected with the air inlet and outlet pipe.

7. The seat cushion according to claim 6, characterized in that The inflation and exhaust device is arranged on the side of the seat cushion body, the inlet and outlet air pipes are arranged on a side surface of the airbag facing the front end face of the seat cushion body, and the connecting pipe extends into the side of the seat cushion body and extends from the front end face of the seat cushion body to be sealed and connected with the inlet and outlet air pipes.

8. The seat cushion according to claim 7, characterized in that: The seat surface adjustment mechanism further comprises a support lining plate, which is arranged between the front end surface of the seat cushion body and the airbag, and the support lining plate is provided with a through hole for the connection pipe to pass through.

9. The seat cushion according to claim 8, characterized in that The front end surface of the seat cushion body is formed with a mounting groove, and the support lining plate is embedded and mounted in the mounting groove.

10. A seat, including a base, characterized in that The seat further comprises a seat cushion as claimed in any one of claims 1 to 9, wherein the seat cushion is arranged on the base.

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