Hardness-adjustable supporting cushion and automobile seat

Abstract

The utility model discloses a support cushion with adjustable hardness and an automobile seat, which comprises a base and upper foam arranged on the base, a hardness adjusting device suitable for adjusting the somatosensory hardness of the support cushion is arranged between the base and the upper foam, and the hardness adjusting device comprises a plurality of air springs distributed between the base and the upper foam; the inflating and deflating module is used for changing the air pressure in the air spring; wherein the air spring comprises a first air chamber and a second air chamber, the first air chamber and the second air chamber are communicated with each other and are stacked in the height direction, the somatosensory hardness of the supporting pad is adjusted in response to the air pressure change in the first air chamber and the second air chamber, and the somatosensory hardness of the supporting pad is adjusted through a hardness adjusting device arranged between the base and the upper foam. By means of the multiple air springs and the inflation and deflation module, a user can conveniently adjust the somatosensory hardness of the supporting pad.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of seat cushion, especially to a soft and hard adjustable supporting pad and car seat. BACKGROUND

[0002] In daily life, people often need to use supporting pads to provide comfortable sitting and lying experience. Traditional supporting pads are mostly made of fixed hardness materials, which cannot adjust the hardness according to the actual needs of users, which limits the applicability and comfort of supporting pads to some extent. In order to solve this problem, some adjustable hardness supporting pads appear in the market, but these products often have problems such as complex adjustment mode, poor adjustment effect or high cost.

[0003] In order to overcome the shortcomings of the prior art, the present application provides a soft and hard adjustable supporting pad. The unique soft and hard adjusting device of the supporting pad realizes flexible adjustment of the body hardness of the supporting pad, thereby meeting the individualized needs of different users for the hardness of the supporting pad.

[0004] In the prior art, some adjustable hardness supporting pads adopt a mechanical adjustment mode, such as changing the spring pressure inside the supporting pad by rotating an adjusting knob, but this adjustment mode often needs to be operated manually by the user, and the adjustment precision is limited. Some other supporting pads use fluid fillers such as air cushions or water cushions to adjust the hardness, but the fluidity of these fillers may cause uneven deformation of the supporting pad during use, affecting the comfort.

[0005] The application with publication number CN110789409B discloses a seat hardness adjusting device and a car seat. The device has at least one soft inflatable bag that can be integrated in the seat. The soft inflatable bag is connected with at least one air path. The soft inflatable bag is filled with flexible filler. The soft inflatable bag is filled with or discharged from gas through the air path to adjust the hardness of the seat surface. The soft inflatable bag is provided with a height limiting structure for limiting the local inflation height of the soft inflatable bag. The structure is complex and requires multiple components to cooperate.

[0006] Therefore, it is of great significance to develop a supporting pad that can adjust the hardness according to the needs of users and has a simple structure. INVENTION CONTENTS

[0007] The utility model adopts the following technical scheme to solve the problems existing in the prior art.

[0008] A soft and hard adjustable supporting pad, comprising a base and an upper foam configured on the base, a soft and hard adjusting device adapted to adjust the body hardness of the supporting pad is configured between the base and the upper foam, the soft and hard adjusting device comprises:

[0009] a plurality of air springs distributed between the base and the upper foam; and

[0010] The inflation and deflation module is used for changing the air pressure in the air spring.

[0011] The air spring comprises a first air chamber and a second air chamber, the first air chamber and the second air chamber are in communication with each other and are stacked in the height direction, and the tactile hardness of the support pad is adjusted in response to the change of the air pressure in the first air chamber and the second air chamber.

[0012] Further, the air spring comprises a first large-diameter part for forming the first air chamber and a second large-diameter part for forming the second air chamber, and the first large-diameter part and the second large-diameter part are connected via a small-diameter part.

[0013] Further, a positioning part extending outward is arranged on the small-diameter part, and the positioning part is adapted to be clamped in the joint gap of the base and the upper foam.

[0014] Further, an air pipe is combined with the small-diameter part, and the air pipes are connected in series between a plurality of air springs arranged in a specified direction.

[0015] Further, at least one air spring of the plurality of air springs connected in series simultaneously has an air inlet pipe and an air outlet pipe.

[0016] Further, a recess for placing the air spring is arranged on the base and / or the upper foam.

[0017] Further, a lower recess for receiving the first large-diameter part is arranged on the base, and an upper recess for receiving the second large-diameter part is arranged on the upper foam.

[0018] Further, a lower foam is arranged on the base, the first air chamber is embedded in the lower foam, and the second air chamber is embedded in the upper foam.

[0019] Further, the top surface of the second air chamber has a flat surface, and the edges thereof are inclined outward and toward the middle to form a roof shape.

[0020] The hardness-adjustable automobile seat comprises the support pad of any one of the above, and the support pad is at least one of a seat pad, a back cushion, a headrest, and a leg rest.

[0021] By adopting the technical scheme, the utility model has the following beneficial effects:

[0022] By arranging the soft-hardness adjusting device between the base and the upper foam, especially by using the plurality of air springs and the inflation and deflation module, the user can conveniently adjust the tactile hardness of the support pad. This design not only meets the individualized needs of different users for hardness, but also enables the support pad to adapt to different use scenarios, thereby improving the comfort and flexibility of use.

[0023] The air spring comprises a first air chamber and a second air chamber, which are stacked in a height direction and communicated with each other. This design not only makes the structure of the air spring more compact, but also enables the hardness to be finely adjusted by adjusting the air pressure in the two air chambers while ensuring the supporting effect. In addition, the first large-diameter part and the second large-diameter part of the air spring are connected through a small-diameter part, and the positioning part on the small-diameter part can be clamped in the joint gap of the base and the upper bubble cotton, thereby ensuring the stability and position accuracy of the air spring.

[0024] The plurality of air springs are connected in series through the air pipe, and at least one air spring is provided with the air inlet pipe and the air outlet pipe, so that the user can conveniently and uniformly adjust the air pressure of the whole system through the inflation and deflation module, and the operation process is greatly simplified. At the same time, this design is also convenient for individual maintenance or replacement of single or multiple air springs. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical schemes of the embodiments of the present application, the drawings of the embodiments will be briefly introduced below. Obviously, the drawings described below only relate to some embodiments of the present application, but not limit the present application.

[0026] Figure 1 is the explosion view of the present application;

[0027] Figure 2 is the distribution schematic view of the air spring of the present application;

[0028] Figure 3 is the structure schematic view of the air spring of the present application;

[0029] Figure 4 is the sectional view of the air spring of the present application;

[0030] Figure 5 is the structure schematic view of the air spring of the present application from another perspective;

[0031] Figure 6 is the structure schematic view of the air spring in series of the present application;

[0032] Figure 7 is the structure schematic view of the upper bubble cotton of the present application;

[0033] Figure 8 is the sectional view of the base of the present application;

[0034] Figure 9 is Figure 8 the enlarged view of A in FIG. 8.

[0035] Explanation of Reference Signs:

[0036] 1-base; 11-lower foam; 111-lower groove; 2-upper foam; 21-upper groove; 3-air spring; 31-first air chamber; 311-first large diameter portion; 32-second air chamber; 321-second large diameter portion; 322-flat surface; 33-small diameter portion; 34-positioning portion; 341-positioning groove; 4-air tube; 41-inlet air tube; 42-outlet air tube. DETAILED DESCRIPTION

[0037] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the following will further describe the present application with reference to the accompanying drawings. The components of the embodiments of the present application described and shown in the accompanying drawings can be arranged and designed in various different configurations. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0038] It should be noted that: similar reference numerals and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0039] Unless otherwise defined, the technical terms or scientific terms used in the present patent document should be understood as the common meanings understood by those skilled in the art. The terms "first", "second" and similar terms used in the patent specification and claims of the present application do not represent any order, number or importance, but are only used to distinguish different components. Similarly, the terms "one", "an" or "the" and similar terms do not represent a quantity limitation, but represent the existence of at least one. The terms "including", "containing" and similar terms mean that the elements or objects appearing before "including" or "containing" cover the elements or objects listed after "including" or "containing" and their equivalents, and do not exclude other elements or objects. The terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like are only used to represent relative positional relationships, which may change accordingly when the absolute positions of the described objects change, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0040] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting" should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be direct connection, or indirect connection through intermediate medium, or internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0041] Some embodiments of the present application will be described in detail below with reference to the accompanying drawings. The features in the following examples can be combined with each other without conflict.

[0042] Example 1:

[0043] As Figures 1-9 shown, the utility model relates to a kind of adjustable support pad of soft and hard and car seat, to be designed by air spring 3 and charge-discharge module, realize the flexible adjustment of the hardness of support pad, to satisfy the individualized demand of different users for comfort degree. The support pad of the utility model is not only applicable to car seat, but also can be widely applied to office chair, sofa, mattress etc. many occasions, provide more comfortable use experience for user.

[0044] As Figures 1-2 shown, the support pad of the utility model mainly includes base 1 and upper foam 2. Base 1 is used as support structure, provides stable base;Upper foam 2 is covered on base 1, provides soft touch. Between base 1 and upper foam 2, soft-hard adjustment device is configured, for adjusting the hardness of support pad.

[0045] Soft-hard adjustment device includes multiple air springs 3 and charge-discharge module. Air spring 3 is evenly distributed between base 1 and upper foam 2, and is used as the main elastic element of support pad. Charge-discharge module is connected with air spring 3, for changing the air pressure inside air spring 3, to realize the adjustment of the hardness of support pad.

[0046] As Figures 3-5 shown, air spring 3 includes first air chamber 31 and second air chamber 32. First air chamber 31 and second air chamber 32 are stacked in height direction and are communicated with each other, and second air chamber 32 is located above first air chamber 31, to form an integral elastic structure. The air pressure change of first air chamber 31 and second air chamber 32 directly affects the hardness of support pad. When air pressure increases, the hardness of air spring 3 increases, and the hardness of support pad also increases;On the contrary, when air pressure decreases, the hardness of support pad decreases.

[0047] The air spring 3 further comprises a first large diameter portion 311 and a second large diameter portion 321 for forming the first air chamber 31 and the second air chamber 32 respectively. The first large diameter portion 311 and the second large diameter portion 321 are connected by a small diameter portion 33. In order to fix the position of the air spring 3, a positioning portion 34 extending outwardly is arranged on the small diameter portion 33. The positioning portion 34 is suitable for being clamped in the joint gap between the base 1 and the upper foam 2, ensuring that the air spring 3 does not displace during use, thereby fixing the position of the air spring 3.

[0048] The design of the air spring 3 not only improves the softness and comfort of the support pad, but also enhances its support performance. By adjusting the air pressure value, the user can increase or decrease the hardness of the support pad as needed, thereby obtaining a more stable support effect.

[0049] As shown in Figure 5 , the top surface of the second air chamber 32 has a flat surface 322, the edges of which are inclined outwardly and towards the middle to form a roof shape. This design not only improves the structural strength of the air spring 3, but also enhances the comfort of the support pad. The roof-shaped design allows the air spring 3 to better distribute stress when subjected to pressure, thereby improving its load-carrying capacity and service life. In this embodiment, the bottom surface of the first air chamber 31 also has another flat surface, the edges of which are inclined outwardly and towards the middle to form a roof shape, and the first air chamber 31 is symmetrical to the second air chamber 32 with respect to the small diameter portion 33, ensuring the stability of the air spring 3 during use, so that the air spring 3 can remain stable during inflation and deflation.

[0050] As shown in Figure 2 or Figure 6 , the plurality of air springs 3 are connected in series through the air pipe 4. The air pipe 4 is arranged in a specified direction, ensuring uniform distribution of air pressure between the air springs 3. This series connection not only simplifies the inflation and deflation process, but also improves the efficiency and accuracy of air pressure adjustment. In this embodiment, the air pipe 4 is arranged in the transverse direction, connecting the air springs 3 in the same direction in series. During the inflation and deflation operation, multiple air springs 3 can be inflated and deflated simultaneously.

[0051] Among the plurality of air springs 3 connected in series, at least one air spring 3 has both an air inlet pipe 41 and an air outlet pipe 42. The air inlet pipe 41 is used to inflate the air spring 3, while the air outlet pipe 42 is used to deflate. By controlling the opening and closing of the air inlet pipe 41 and the air outlet pipe 42, the inflation and deflation module can achieve precise adjustment of the air pressure of the air spring 3.

[0052] As shown in Figures 7-9As shown, to further improve the stability of the air spring 3, grooves for placing the air spring 3 are provided on the base 1 and the upper foam 2. The base 1 has a lower groove 111 for receiving the first large-diameter portion 311. The shape of the lower groove 111 matches the shape of the first air chamber 31, and the diameter of the middle part of the lower groove 111 is larger than the diameter of the opening and the bottom. The upper foam 2 has an upper groove 21 for receiving the second large-diameter portion 321. The shape of the upper groove 21 matches the second air chamber 32. Through the design of the grooves, the air spring 3 can be securely embedded between the base 1 and the upper foam 2, preventing shaking or displacement during use.

[0053] In this embodiment, the openings of the lower groove 111 and the upper groove 21 are provided with positioning grooves 341 for fixing the positioning part 34, so as to ensure that the air spring 3 is stably disposed between the base 1 and the upper foam 2, and to prevent the first air chamber 31 and the second air chamber 32 of the air spring 3 from being relatively tilted. The positioning part 34 cooperates with the positioning groove 341 so that the first air chamber 31 and the second air chamber 32 of the air spring 3 are respectively fixed in the lower groove 111 and the upper groove 21, preventing the air spring 3 from detaching from the groove and affecting the comfort and softness of the support pad.

[0054] like Figures 8-9 As shown, to further enhance the cushioning performance and stability of the support pad, a lower foam 11 is provided on the base 1. The first air chamber 31 is embedded in the lower foam 11, and the second air chamber 32 is embedded in the upper foam 2. In this embodiment, the lower groove 111 is provided on the lower foam 11. The lower foam 11 not only improves the softness and comfort of the support pad, but also ensures the stability of the air spring 3 during use.

[0055] The base 1 is equipped with a lower foam 11, which can enhance the performance of the support pad and protect the air spring 3. The first air chamber 31 of the air spring 3 is arranged inside the lower foam 11 to prevent the first air chamber 31 from contacting hard objects, protect the air spring 3 from being scratched by hard objects, and extend the service life of the air spring.

[0056] In this embodiment, the upper foam 2 is also provided with an air bag groove for placing a massage air bag at the end near the human body. The massage air bag can also enhance the cushioning performance of the support pad, and the hardness of the support pad can be adjusted by inflating and deflating the massage air bag in conjunction with the air spring.

[0057] The inflation and deflation module is a key component for changing the air pressure of the air spring 3 in the utility model. The inflation and deflation module includes an air pump, a control valve and an air pressure sensor. The air pump is used to inflate or deflate the air spring 3, and the control valve is used to adjust the direction and speed of the air flow. The air pressure sensor monitors the air pressure value in the air spring 3 in real time and feeds back the data to the control system. The user can set the required air pressure value through the control panel, and the inflation and deflation module automatically adjusts the air pressure of the air spring 3 according to the set value, so as to realize the precise control of the hardness of the support pad.

[0058] As shown in Figures 1-9 The application also provides an automobile seat applying the support pad with adjustable hardness, which is applied to seat cushions, back cushions, headrests and leg supports, etc. The user can adjust the hardness of the seat cushion through the control panel according to the individual needs, so as to improve the riding comfort. The design of the support pad with adjustable hardness not only meets the individual needs of different users for the hardness, but also improves the overall comfort and riding experience of the automobile seat.

[0059] In addition to the automobile seat, the support pad of the utility model can also be applied to other occasions requiring adjustment of hardness, such as office chairs, sofas, mattresses, etc.

[0060] The above is only a specific embodiment of the application, but the protection scope of the application is not limited to this. Any person skilled in the art can easily think of changes or replacements within the technical range disclosed in the application, which should be covered in the protection scope of the application. Therefore, the protection scope of the application should be subject to the protection scope of the claims.

Claims

1. A soft-hard adjustable support cushion comprising a base and an upper foam configured on the base, characterized in that, The base and the upper foam are provided with a soft-hard adjusting device adapted to adjust the body feeling hardness of the support pad, the soft-hard adjusting device comprises: a plurality of air springs distributed between the base and the upper foam; and an inflation and deflation module for changing the air pressure in the air springs; wherein the air spring comprises a first air chamber and a second air chamber, the first air chamber and the second air chamber are in communication with each other and are stacked in the height direction, and the body feeling hardness of the support pad is adjusted in response to the change of the air pressure in the first air chamber and the second air chamber.

2. The support cushion of claim 1, wherein, The air spring comprises a first large diameter part for forming the first air chamber and a second large diameter part for forming the second air chamber, and the first large diameter part and the second large diameter part are connected via a small diameter part.

3. The support cushion of claim 2, wherein, The small diameter part is provided with a positioning part extending outwardly, which is adapted to be clamped in the joint gap of the base and the upper foam.

4. Support cushion according to claim 2 or 3, characterized in that The small diameter part is combined with an air pipe, and a plurality of air springs arranged in a specified direction are connected in series through the air pipe.

5. The support cushion of claim 4, wherein, At least one of the plurality of air springs connected in series has both an air inlet pipe and an air outlet pipe.

6. The support cushion of claim 1, wherein, The base and / or the upper foam are provided with a recess for placing the air spring.

7. The support cushion of claim 6, wherein, The base is provided with a lower recess for receiving the first large diameter part, and the upper foam is provided with an upper recess for receiving the second large diameter part.

8. The support cushion of claim 1, wherein, The base is provided with a lower foam, the first air chamber is embedded in the lower foam, and the second air chamber is embedded in the upper foam.

9. The support cushion of claim 1, wherein, The top surface of the second air chamber has a flat surface, and the edges thereof are inclined outwardly and towards the middle to form a roof shape.

10. A car seat with adjustable firmness, characterized in that, The support pad comprises at least one of a seat cushion, a back cushion, a headrest and a leg rest. The support pad comprises at least one of a seat cushion, a back cushion, a headrest and a leg rest.

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