Cushion hardness adjusting device applied to sofa

Abstract

A cushion hardness adjusting device applied to a sofa comprises a seat bag air bag used for supporting a sofa cushion, an electric air pump and a control module, and the seat bag air bag at least comprises a plurality of air bag units arranged from top to bottom; the control module is electrically connected with an electric control type air supply pipeline capable of inflating and deflating the air bag units independently, the electric control type air supply pipeline is connected with an electric air pump to supply air, and the electric air pump is connected with and controlled by the control module to work. The air bag is installed at the bottom of the sofa cushion and plays a role in supporting the sofa cushion together with the sofa spring, a user can adjust the inflation degree of the air bag to achieve the supporting hardness of the sofa cushion, and therefore the hardness of the sofa cushion can be adjusted. And a user does not directly contact with the air bag or sits on the sofa cushion, so that the comfort level is higher.

Description

TECHNICAL FIELD

[0001] The utility model relates to sofa technical field, concretely relates to a kind of cushion softness adjusting device on application sofa. BACKGROUND

[0002] Different people have different requirements for sofa softness, if it cannot be adjusted in time, it will affect the user's experience, therefore, in prior art, air bag is usually provided on the cushion of sofa to adjust the softness of sofa cushion.

[0003] For example, the technical solution of patent CN201920993402.4, the existing sofa includes a sofa main body and a hip adjustment air bag arranged on the cushion of the sofa main body. The air outlet of the air pump is connected to the hip adjustment air bag through an air supply pipe. The hip adjustment air bag is inflated by the inflation of the air pump. When the human hips sit on the hip adjustment air bag, it can provide comfortable seating for the human hips. An air exhaust pipe is also arranged on the hip adjustment air bag. Electromagnetic valves are arranged on the air supply pipe and the air exhaust pipe. The controller is electrically connected to the air pump and the electromagnetic valves. Therefore, the controller can control the electromagnetic valves to adjust the amount of air in the hip adjustment air bag, thereby adjusting the softness of the sofa to meet the user's comfort requirements.

[0004] However, the existing hip adjustment air bag directly contacts the user's hips, and the user directly sits on the air bag, which is not comfortable and is not conducive to long sitting, making it difficult to meet the diverse needs of users. INVENTION CONTENTS

[0005] In order to overcome the shortcomings of the prior art, the utility model provides a cushion softness adjusting device on application sofa.

[0006] The technical solution adopted by the utility model to solve its technical problems is:

[0007] A cushion softness adjusting device on application sofa, including the seat bag air bag for supporting sofa cushion, electric air pump and control module, its characterized in that: the seat bag air bag at least includes a plurality of air bag units arranged from top to bottom;The control module is electrically connected to the electric control type air supply pipeline capable of independently inflating and deflating each air bag unit, the electric control type air supply pipeline is connected to the air supply by the electric air pump, the electric air pump is controlled by the control module to work, and the control module is integrated with an air pressure sensor for monitoring the gas pressure of the electric air pump.

[0008] In the utility model, the plurality of air bag units at least include upper air bag and lower air bag, and the electric control type air supply pipeline is provided with upper air pipe connected to the upper air bag and lower air pipe connected to the lower air bag.

[0009] In the utility model, the upper air bag and the lower air bag all include air bag bodies, and the air bag bodies include at least two air bag bodies connected in sequence along a straight line.

[0010] In the utility model, the cushion softness adjusting device includes an elastic support structure arranged above the seat bag air bag, and the elastic support structure is composed of a plurality of elastic support members.

[0011] In the utility model, the electric control type air supply pipeline includes a first electric valve, a second electric valve, a third electric valve, a fourth electric valve, a first-stage air inlet pipe, a monitoring air supply pipe, a second-stage air inlet pipe, a lower air supply pipe and an upper air supply pipe, the air inlet end of the first electric valve is connected with the air outlet end of the electric air pump through the first-stage air inlet pipe;

[0012] The first air outlet end of the first electric valve is connected with the air pressure sensor through the monitoring air supply pipe;

[0013] The second air outlet end of the first electric valve is connected with the air inlet end of the second electric valve through the second-stage air inlet pipe;

[0014] The upper air pipe and the lower air pipe are connected with the two air outlet ends of the second electric valve respectively, one end of the lower air supply pipe is connected with the lower air pipe, and the other end is connected with the air inlet end of the third electric valve;

[0015] One end of the upper air supply pipe is connected with the upper air pipe, and the other end is connected with the air inlet end of the fourth electric valve.

[0016] In the utility model, the air outlet end of the third electric valve is provided with a first exhaust pipe, the air outlet end of the fourth electric valve is provided with a second exhaust pipe, and the first exhaust pipe and the second exhaust pipe are connected with one pipeline air port.

[0017] In the utility model, the air inlet end of the electric air pump is provided with an air pump air inlet pipe, and the air pump air inlet pipe is connected with the pipeline air port.

[0018] In the utility model, the control module, the first electric valve, the second electric valve, the third electric valve and the fourth electric valve are all installed in a control box.

[0019] In the utility model, the seat bag air bag is externally sleeved with a protective cloth sleeve.

[0020] The utility model has the advantages that the utility model is installed at the bottom of a sofa cushion, supports the sofa cushion together with sofa springs, users can adjust the inflation degree of the air bag to realize the softness and hardness of the sofa cushion support, thereby realizing the softness and hardness adjustment of the sofa cushion.

[0021] Further, the seat bag air bag is composed of the upper air bag and the lower air bag in a double-layer air bag structure, and even a multi-layer air bag structure with three or more layers can be formed according to actual needs. Compared with the traditional single-layer air bag structure, the change range of the air bag in the inflation and deflation process is greatly enriched. The double-layer design enables the upper air bag and the lower air bag to be independently inflated and deflated according to the instructions of the control module, thereby combining more softness and hardness gears, improving the flexibility of the sofa cushion in the softness and hardness adjustment, and greatly meeting the diversified needs of different users for comfort. BRIEF DESCRIPTION OF DRAWINGS

[0022] The utility model will be further described below in combination with the drawings and embodiments:

[0023] Figure 1 It is the connection schematic view of each module of the cushion softness and hardness adjusting device;

[0024] Figure 2 It is the front view of the seat bag air bag;

[0025] Figure 3 It is the rear view of the seat bag air bag;

[0026] Figure 4 It is the installation schematic view of the seat bag air bag. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in combination with the drawings in the embodiments of the utility model.

[0028] It should be noted that if the embodiments of the utility model involve directional indications (such as up, down, left, right, front, back, top, bottom, inside, outside, vertical, horizontal, longitudinal, counterclockwise, clockwise, circumferential, radial, axial, etc.), the directional indications are only used to explain the relative position relationship, movement condition, etc. between the components in a certain posture (as shown in the drawings), and if the certain posture changes, the directional indications will also change accordingly.

[0029] In addition, if the description of "first" or "second" and the like is involved in the embodiments of the present application, the description of "first" or "second" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can be explicitly or implicitly included at least one of the features. Meanwhile, the technical solutions of various embodiments can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope required by the present application.

[0030] Referring to Figures 1-4 The application relates to a softness adjusting device for a sofa cushion, which comprises a seat bag air bag 100 for supporting the sofa cushion, an electric air pump 1 and a control module 2. The seat bag air bag 100 comprises at least a plurality of air bag units arranged from top to bottom. The air bag units comprise at least an upper air bag 3 and a lower air bag 4, and the upper air bag 3 and the lower air bag 4 are connected together. The control module 2 is electrically connected with an electric control type air supply pipeline capable of independently supplying air to each air bag unit. The electric control type air supply pipeline is connected with the electric air pump 1 for air supply, and the electric air pump 1 is connected with the control module 2 for control. The electric control type air supply pipeline is provided with an upper air pipe 31 connected with the upper air bag 3 and a lower air pipe 41 connected with the lower air bag 4. The control module 2 controls the electric air pump 1 and the electric control type air supply pipeline according to requirements, so that the upper air bag 3 and the lower air bag 4 can be inflated and deflated. More softness levels can be obtained through the combination of the upper air bag 3 and the lower air bag 4, and the diversified user requirements can be met.

[0031] As a preferred embodiment, the upper air bag 3 and the lower air bag 4 each comprise an air bag body 101 and an air pipe joint 102 fixed to the air bag body 101. One end of the lower air pipe 41 is detachably connected to the air pipe joint 102 of the lower air bag 4, and one end of the upper air pipe 31 is detachably connected to the air pipe joint 102 of the upper air bag 3. The above structure is beneficial to the installation of the upper air pipe 31 and the lower air pipe 41. Further, the air bag body 101 comprises at least two air bag bodies 103 connected in a straight line. The interiors of the air bag bodies 103 are communicated with each other, so that the same air pipe can be used for inflation and deflation. Moreover, the upper part and the lower part of the air bag body 101 can be in a wave-shaped structure through the above structure, which is beneficial to the horizontal placement of the air bag body 101.

[0032] As a preferred embodiment, the cushion softness adjusting device comprises a cushion frame 200 and an elastic support structure arranged above the seat bag air bag 100, the elastic support structure is composed of a plurality of elastic support members 300, the elastic support member 300 is a serpentine spring or an elastic rubber band, the inside of the cushion frame 200 is a containing space, the elastic support member 300 is arranged at the top opening position of the cushion frame 200, and the two ends of the elastic support member 300 are connected with the cushion frame 200 respectively to realize the installation of the elastic support member 300; the seat bag air bag 100 is installed in the containing space and is arranged corresponding to the elastic support structure, so that the expansion height of the seat bag air bag 100 can be controlled to limit the stretching range of the elastic support member 300 downwards, thereby realizing the softness adjustment of the sofa cushion.

[0033] As a preferred embodiment, the control module 2 is integrated with an air pressure sensor 21 for monitoring the gas pressure delivered by the electric air pump 1, so that the control module 2 knows whether the electric air pump 1 is working normally.

[0034] As a preferred embodiment, the electric control type air supply pipeline comprises a first electric valve 5, a second electric valve 6, a third electric valve 7, a fourth electric valve 8, a first-stage air inlet pipe 9, a monitoring air supply pipe 10, a second-stage air inlet pipe 11, a lower air supply pipe 12 and an upper air supply pipe 13, the first electric valve 5, the second electric valve 6, the third electric valve 7 and the fourth electric valve 8 are all electromagnetic valves connected and controlled by the control module 2.

[0035] Further, the air inlet end of the first electric valve 5 is connected with the air outlet end of the electric air pump 1 through the first-stage air inlet pipe 9, the first air outlet end of the first electric valve 5 is connected with the air pressure sensor 21 through the monitoring air supply pipe 10, so that the air pressure sensor 21 can detect the pressure of the gas delivered by the electric air pump 1; the second air outlet end of the first electric valve 5 is connected with the air inlet end of the second electric valve 6 through the second-stage air inlet pipe 11; the upper air pipe 31 and the lower air pipe 41 are connected with the two air outlet ends of the second electric valve 6 respectively, so that the gas passing through the second electric valve 6 can enter the upper air bag 3 and the lower air bag 4 through the upper air pipe 31 and the lower air pipe 41 respectively;

[0036] Further, one end of the lower air supply pipe 12 is connected with the lower air pipe 41, and the other end is connected with the air inlet end of the third electric valve 7, when the lower air bag 4 is inflated, the third electric valve 7 blocks the lower air supply pipe 12, so that the gas input into the lower air pipe 41 through the second electric valve 6 can enter the lower air bag 4, thereby realizing the inflation of the lower air bag 4; when the lower air bag 4 is deflated, the second electric valve 6 is closed and the third electric valve 7 is opened to deflate, so that the gas in the lower air bag 4 flows to the lower air supply pipe 12 through the lower air pipe 41, and then is discharged after passing through the third electric valve 7.

[0037] Further, one end of the upper air pipe 13 is connected with the upper layer air pipe 31, and the other end is connected with the air inlet of the fourth electric valve 8. When the upper layer air bag 3 is inflated, the fourth electric valve 8 blocks the upper air pipe 13, so that the gas input by the second electric valve 6 into the upper layer air pipe 31 can enter the upper layer air bag 3, thereby realizing the inflation of the upper layer air bag 3. When the upper layer air bag 3 is deflated, the second electric valve 6 is closed, and the fourth electric valve 8 is opened to deflate, so that the gas in the upper layer air bag 3 flows to the upper air pipe 13 through the upper layer air pipe 31, and then is discharged after passing through the fourth electric valve 8.

[0038] In the embodiment, the gas outlet of the third electric valve 7 is provided with a first exhaust pipe 14, and the gas outlet of the fourth electric valve 8 is provided with a second exhaust pipe 15. The first exhaust pipe 14 and the second exhaust pipe 15 are jointly connected with a pipeline air port 16, so that the gas discharged through the gas outlets of the third electric valve 7 and the fourth electric valve 8 can be concentrated and discharged through the pipeline air port 16. Therefore, the manufacturer can set the pipeline air port 16 at a position far away from sundries, so as to reduce the probability of the pipeline air port 16 being blocked by sundries. In addition, the air inlet of the electric air pump 1 can be provided with an air pump air inlet pipe 17 connected with the pipeline air port 16, so as to also reduce the probability of the air inlet of the electric air pump 1 being blocked by sundries.

[0039] Through the above structure, four-gear control of the seat bag air bag 100 can be realized. The higher the gear, the higher the force of the seat bag air bag 100 supporting the sofa cushion, the lower the deformation amplitude of the sofa cushion, and the higher the hardness of the sofa cushion perceived by the user, thereby realizing the purpose of adjusting the hardness of the sofa cushion. For example, the first gear can be set to make the upper layer air bag 3 not inflated, so that the upper layer air bag 3 is in a flat state, and then the lower layer air bag 4 is inflated to two-thirds of the maximum capacity. The second gear can be set to make the upper layer air bag 3 remain in a flat state, and then the lower layer air bag 4 is inflated to the maximum capacity. The third gear can be set to make the lower layer air bag 4 be inflated to the maximum capacity, and the upper layer air bag 3 be inflated to three-fourths of the maximum capacity. The fourth gear can be set to make the upper layer air bag 3 and the lower layer air bag 4 be inflated to the maximum capacity, so that the seat bag air bag 100 supports the elastic support structure, and the hardness of the sofa cushion is the highest.

[0040] As a preferred embodiment, the seat bag air bag 100 is externally sleeved with a protective cloth sleeve 400, which is used to wrap and protect the seat bag air bag 100, thereby reducing the probability of the seat bag air bag 100 being damaged.

[0041] As a preferred implementation, the control module 2 is installed in a control box 500, which can be installed in a containing space, and the control module 2 is protected by the control box 500, reducing the risk of damage to the control module 2 by external force impact; further, the electric air pump 1, the first electric valve 5, the second electric valve 6, the third electric valve 7 and the fourth electric valve 8 can all be arranged in the control box 500, so that the control box 500 can also protect them, reducing the probability of damage by impact. In addition, the control module 2 can be externally connected to a control panel, allowing the user to use the keys of the control panel to issue corresponding control instructions to the control module 2, so that the control module 2 controls the seat air bag 100 to expand to a corresponding amplitude according to the corresponding control instructions, meeting the user's requirements for the softness of the sofa cushion.

[0042] The above only describes the preferred embodiments of the present application, and any technical solutions that achieve the same purpose by substantially the same means are within the scope of protection of the present application.

Claims

1. A device for adjusting the firmness of a cushion on a sofa, comprising a seat bag air bag (100) for supporting the sofa cushion, an electric air pump (1) and a control module (2), characterized in that: The seat bag air bag (100) comprises at least a plurality of air bag units arranged from top to bottom; the control module (2) is electrically connected with an electrically-controlled air supply pipeline capable of independently charging and discharging each air bag unit, the electrically-controlled air supply pipeline is connected with a gas supply by an electric air pump (1), the electric air pump (1) is controlled to work by the control module (2), and an air pressure sensor (21) for monitoring the gas pressure delivered by the electric air pump (1) is integrated on the control module (2).

2. The device according to claim 1, characterized in that: The plurality of air bag units at least comprises an upper air bag (3) and a lower air bag (4), and the electrically-controlled air supply pipeline is provided with an upper air pipe (31) connected to the upper air bag (3) and a lower air pipe (41) connected to the lower air bag (4).

3. The device according to claim 2, characterized in that: The upper air bag (3) and the lower air bag (4) each comprise an air bag body (101), and the air bag body (101) comprises at least two air bag bodies (103) connected in sequence along a straight line.

4. The device according to claim 2, wherein: The seat cushion softness adjusting device comprises an elastic support structure arranged above the seat bag air bag (100), and the elastic support structure is composed of a plurality of elastic support members (300) having elasticity.

5. The device according to claim 1, wherein: The electrically-controlled air supply pipeline comprises a first electric valve (5), a second electric valve (6), a third electric valve (7), a fourth electric valve (8), a first-stage air inlet pipe (9), a monitoring air supply pipe (10), a second-stage air inlet pipe (11), a lower air supply pipe (12) and an upper air supply pipe (13), the air inlet end of the first electric valve (5) is connected with the air outlet end of the electric air pump (1) by the first-stage air inlet pipe (9); the first air outlet end of the first electric valve (5) is connected with the air pressure sensor (21) by the monitoring air supply pipe (10); the second air outlet end of the first electric valve (5) is connected with the air inlet end of the second electric valve (6) by the second-stage air inlet pipe (11); the upper air pipe (31) and the lower air pipe (41) are respectively connected with the two air outlet ends of the second electric valve (6); one end of the lower air supply pipe (12) is connected with the lower air pipe (41), and the other end is connected with the air inlet end of the third electric valve (7); one end of the upper air supply pipe (13) is connected with the upper air pipe (31), and the other end is connected with the air inlet end of the fourth electric valve (8).

6. The device according to claim 5, wherein: The air outlet end of the third electric valve (7) is provided with a first air exhaust pipe (14), the air outlet end of the fourth electric valve (8) is provided with a second air exhaust pipe (15), and the first air exhaust pipe (14) and the second air exhaust pipe (15) are jointly connected with a pipeline air port (16).

7. The device according to claim 6, characterized in that: The air inlet end of the electric air pump (1) is provided with an air pump air inlet pipe (17), and the air pump air inlet pipe (17) is connected to the pipeline air port (16).

8. The device according to claim 5, wherein: The control module (2), the first electric valve (5), the second electric valve (6), the third electric valve (7) and the fourth electric valve (8) are all installed in a control box (500).

9. The device according to any one of claims 1-8, characterized in that: The seat bag air bag (100) is externally sleeved with a protective cloth cover (400).

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