Air path control system of air cushion bed

Abstract

The utility model discloses an air path control system of an air cushion bed. The air path control system comprises an inflator pump, a silencing and filtering device, a massage valve assembly, a hardness adjusting valve assembly and an air pressure sensor which are sequentially connected in series, massage valve groups are arranged in the massage valve assembly, each massage valve group comprises a massage inflation valve and a massage exhaust valve, the massage inflation valve is a normally closed two-position three-way valve, the massage exhaust valve is a normally open two-position two-way valve, a working port of the massage inflation valve is connected with the massage air bag, and an air outlet of the massage inflation valve is connected with an air inlet of the massage exhaust valve; the hardness adjusting valve assembly is provided with a plurality of adjusting valve sets, each adjusting valve set comprises an adjusting inflation valve and an adjusting exhaust valve, the adjusting inflation valves are normally-closed two-position three-way valves, the adjusting exhaust valves are normally-closed two-position two-way valves, working ports of the adjusting inflation valves are connected with the adjusting air bags, and air outlets of the adjusting inflation valves are connected with air inlets of the adjusting exhaust valves. According to the utility model, air can be supplied according to the inflation and deflation requirements of the adjusting air bag and the massage air bag.

Description

Technical Field

[0001] The utility model relates to the field of mattresses, in particular to an air path control system of an air mattress. Background Art

[0002] With the improvement of living standards, people's requirements for quality of life are also gradually increasing. Therefore, in order to meet people's growing needs, many functional home furnishings have emerged. For example, in the field of mattresses, many mattresses with massage functions or automatic adjustment of softness and hardness have appeared.

[0003] In the prior art, the massage and hardness adjustment functions of some mattresses are realized through airbags and corresponding air circuit control systems that control the inflation and deflation of the airbags. At present, the air circuit control systems used in mattresses are relatively simple and do not have the functions of simultaneously controlling massage and hardness adjustment, resulting in the massage function or hardness adjustment function of the mattress being set separately, and users cannot enjoy these two functions on the same mattress at the same time, which reduces the user's comfort. Therefore, the prior art requires an air circuit control system that can simultaneously control two functional airbags. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides an air circuit control system for an air mattress, which can supply air for the inflation and deflation requirements of the regulating airbags and the massage airbags, thereby facilitating the integration of the airbag massage function and the airbag hardness adjustment function on the same bed body.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] An air circuit control system for an air mattress, characterized in that it comprises a plurality of regulating air bags, a plurality of massage air bags, and an air pump, a muffler filter, a massage valve assembly, a hardness regulating valve assembly, and an air pressure sensor connected in series in sequence;

[0007] The massage valve assembly comprises a plurality of massage valve groups, each of which comprises a massage inflation valve and a massage exhaust valve, the massage inflation valve is a normally closed two-position three-way valve, the massage exhaust valve is a normally open two-position two-way valve, the air inlet of each massage inflation valve receives air from an air pump, the working port is connected to a massage airbag, and the air outlet is connected to the air inlet of the massage exhaust valve;

[0008] The hardness regulating valve assembly comprises a plurality of regulating valve groups, each regulating valve group comprises a regulating inflation valve and a regulating exhaust valve, the regulating inflation valve is a normally closed two-position three-way valve, the regulating exhaust valve is a normally closed two-position two-way valve, the air inlet of each regulating inflation valve receives air supply from an air pump, the working port is connected to the regulating airbag, and the air outlet is connected to the air inlet of the regulating exhaust valve.

[0009] Preferably, the hardness regulating valve assembly also includes an regulating air inlet pipe and an regulating air exhaust pipe, the regulating air inlet pipe is connected in series to the silencer and filter device, the air inlet of the regulating inflation valve is connected to the regulating air inlet pipe, and the air outlet of the regulating exhaust valve is connected to the regulating exhaust pipe.

[0010] Preferably, the massage valve assembly also includes a massage air inlet pipe, which is connected in series with the regulating air inlet pipe, and the air inlets of the massage inflation valves are all connected to the massage air inlet pipe.

[0011] Preferably, the air pressure sensor is connected in series to the massage air intake pipe.

[0012] The advantages of the utility model are:

[0013] 1. The hardness regulating valve assembly can control the inflation, pressure maintenance and exhaust of multiple regulating airbags, and the massage valve assembly can control the inflation, rapid exhaust and pressure maintenance of multiple massage airbags. Therefore, the air circuit control system can meet the corresponding inflation and exhaust requirements of the regulating airbag and the massage airbag, and can integrate the regulating airbag and the massage airbag on a bed body to improve the comfort of the user;

[0014] 2. The noise-reducing filter device can appropriately reduce the noise generated by the exhaust gas from the air pump, so as not to affect the user's normal rest as much as possible;

[0015] 3. The air pressure sensor is directly connected in series in the air circuit control system. By polling and switching each massage valve group and regulating valve group, the pressure value of the air bag can be sensed one by one, and then the pressure adjustment of the corresponding air bag can be realized. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of an air mattress with massage and hardness adjustment functions provided in this embodiment;

[0017] Figure 2 An exploded view of the air mattress with massage and hardness adjustment functions provided in this embodiment;

[0018] Figure 3 A cross-sectional view of the air mattress with massage and hardness adjustment functions provided in this embodiment;

[0019] Figure 4 A module diagram of the gas circuit control system provided in this embodiment;

[0020] Figure 5 A diagram of the gas circuit control system provided in this embodiment;

[0021] Figure 6 Schematic diagram of the massage valve assembly and hardness adjustment valve assembly provided in this embodiment. DETAILED DESCRIPTION

[0022] Combination Figures 1 to 6 The utility model is further described with respect to the air mattress with massage and hardness adjustment functions.

[0023] An air mattress with massage and hardness adjustment functions is characterized in that it comprises a bed body and an air path control system arranged in the bed body.

[0024] The bed body comprises a frame 1, a surface layer 2, a plurality of regulating airbags 4, a bottom layer 3 and a plurality of massage airbags 5. The surface layer 2 and the bottom layer 3 are respectively arranged at the top and the bottom of the frame 1, and form a hollow mounting cavity 9 with the frame 1; the plurality of massage airbags 5 are arranged in the surface layer 2; and the plurality of regulating airbags 4 are arranged in the mounting cavity 9.

[0025] The air circuit control system includes an air pump 11, a muffler filter 17, a hardness regulating valve assembly 12, a massage valve assembly 13 and an air pressure sensor 14 connected in series. The hardness regulating valve assembly 12 includes a mounting frame and multiple regulating valve groups 121 arranged on the mounting frame. The multiple regulating valve groups 121 are connected to multiple regulating airbags 4, and each regulating valve group 121 can be connected to 1 or 2 regulating airbags 4; the massage valve assembly 13 includes a mounting frame and multiple massage valve groups 131 arranged on the mounting frame. The multiple massage valve groups 131 are connected to multiple massage airbags 5, that is, the number of massage valve groups 131 is equal to the number of massage airbags 5, so that one-to-one docking is achieved.

[0026] Specifically, in the bed structure, the frame 1 is a quadrilateral structure formed by connecting four side panels of a certain height end to end. The edge positions of the surface layer 2 and the edge positions of the bottom layer 3 are respectively fixed to the top and bottom of the frame 1. The surface layer 2 and the bottom layer 3 are suspended except for the edge positions. At the same time, the frame 1 is cooperated to form an installation cavity 9 with a hollow structure. The installation cavity 9 is used for arranging multiple adjusting airbags 4, and space is reserved for the expansion of the adjusting airbags 4. At the same time, the inflated adjusting airbags 4 can provide support for the surface layer 2 except for the edge positions.

[0027] An adjustable airbag fixing cotton 6 is fixed at the bottom of the frame 1. Each adjustable airbag 4 is a rectangular structure. All the adjustable airbags 4 are arranged along the length direction of the bed body and are extended along the width direction of the bed body and fixed on the adjustable airbag fixing cotton 6. Under this arrangement structure, the softness and hardness can be adjusted according to the needs of different height parts of the human body. For example, the softness and hardness of the adjustable airbags 4 corresponding to the head, shoulders, back, waist, hips, and legs can be adjusted in different zones, which significantly improves the flexibility and comfort of use.

[0028] Brown cotton 7 is arranged at the bottom of the frame 1 and the lower side of the regulating airbag fixing cotton 6. A control box 8 is fixed to the brown cotton 7 at a position corresponding to the tail of the bed body. The air circuit control system is installed in the control box. The control box can not only improve the safety of use, but also reduce noise to a certain extent.

[0029] The bottom layer 3 is a bottom sponge.

[0030] The surface layer 2 includes a controllable heating pad 21, a top memory foam 22, a top high elastic foam 23 and a massage airbag fixing foam 25 which are stacked in sequence from top to bottom, and a plurality of massage airbags 5 are fixed on the massage airbag fixing foam 25 and are located between the massage airbag fixing foam 25 and the top high elastic foam 23. Each layer in the surface layer 2 has a corresponding function, so that the utility model has more functions and improves the comfort of use.

[0031] The multiple massage airbags 5 include neck massage airbags, shoulder massage airbags, waist massage airbags and leg massage airbags, and each massage airbag 5 corresponds to a respective part of the human body to effectively massage the corresponding part of the human body.

[0032] It should be noted that the specific massage position of the massage airbag 5 can be set according to actual needs. It only needs to be arranged at a position corresponding to the human body to perform a massage operation on that part of the human body.

[0033] In the regulating valve group 121, each regulating valve group 121 includes a regulating air-inflating valve 1212 and a regulating air-exhaust valve 1211. The regulating air-inflating valve 1212 is a normally closed two-position three-way valve, having an air inlet I, a working port C and an air outlet B. When the power is off, the air inlet I is blocked, and the working port C is connected to the air outlet B; when the power is on, the air inlet I is connected to the working port C, and the working port C is blocked from the air outlet B. The regulating air-exhaust valve 1211 is a normally closed two-position two-way valve, having an air inlet A and an air outlet H. When the power is off, the air inlet A is blocked from the air outlet H; when the power is on, the air inlet A is connected to the air outlet H. The air inlet I of the regulating air-inflating valve 1212 receives the air supply from the air pump 11 after passing through the muffler filter 17, the working port C is connected to the regulating airbag 4, and the air outlet B is connected to the air inlet A of the regulating air-exhaust valve 1211. In the air circuit, when the regulating airbag 4 needs to be inflated, the regulating inflation valve 1212 is energized, and the pressure can be maintained after the inflation is completed; when the regulating airbag 4 needs to be deflated, the regulating inflation valve 1212 is de-energized, and the regulating exhaust valve 1211 is energized to discharge the gas in the regulating airbag 4. During the inflation process of the regulating airbag 4, since the air pressure sensor 14 is connected in series in the air circuit, the air pressure sensor 14 can detect the air pressure value in the regulating airbag 4.

[0034] In this embodiment, four regulating valve groups 121 are provided, which can control the inflation and exhaust of 4-8 regulating airbags 4.

[0035] The hardness regulating valve assembly 12 also includes a regulating air intake pipe 122 and a regulating air exhaust pipe 123. The regulating air intake pipe 122 is connected in series to the muffler filter device 17. The air intake ports I of the four regulating air charging valves 1212 are all connected to the regulating air intake pipe 122, and the air outlet ports H of the four regulating air exhaust valves 1211 are all connected to the regulating air exhaust pipe 123. The setting of the regulating air intake pipe 122 can facilitate the polling operation of the four regulating valve groups 121, and the regulating air exhaust pipe can facilitate the unified processing of the exhaust gas.

[0036] In the massage valve group 131, each massage valve group 131 includes a massage inflation valve 1312 and a massage exhaust valve 1311. The massage inflation valve 1312 is a normally closed two-position three-way valve, having an air inlet K, a working port F and an air outlet E. When the power is off, the air inlet K is blocked, and the working port F is connected to the air outlet E; when the power is on, the air inlet K is connected to the working port F, and the air outlet E is blocked. The massage exhaust valve 1311 is a normally open two-position two-way valve, having an air inlet D and an air outlet G. When the power is off, the air inlet D is connected to the air outlet G; when the power is on, the air inlet D is disconnected from the air outlet G. The air inlet K of the massage inflation valve 1312 receives the air supply from the inflation pump 11 after passing through the silencer filter 17, the working port F is connected to the massage airbag 5, and the air outlet E is connected to the air inlet D of the massage exhaust valve 1311. In this air circuit, when the massage inflation valve 1312 is energized, the massage airbag 5 can be inflated, and the massage airbag 5 can be inflated and pressed. Since the massage exhaust valve 1311 is a normally open structure, after the massage inflation valve 1312 loses power, the massage exhaust valve 1311 does not need to work, and the air pressure in the massage airbag 5 can be discharged, and the massage airbag 5 contracts, thereby realizing the massage function; when it is necessary to maintain the air pressure in the massage airbag 5, the massage exhaust valve 1311 is energized.

[0037] In this embodiment, the massage valve group 131 has five groups, which respectively control the inflation and deflation of five massage airbags 5, namely, one neck massage airbag, two shoulder massage airbags, one waist massage airbag and one leg massage airbag.

[0038] The massage valve assembly 13 also includes a massage air inlet pipe 132 , which is connected in series with the regulating air inlet pipe 122 via a hose. The air inlets K of the five massage inflation valves 1312 are all connected to the massage air inlet pipe 132 , which facilitates the polling operation of the five massage valve groups 131 .

[0039] The entire air circuit structure also includes a controller 10, which is electrically connected to the air pump 11, the hardness regulating valve assembly 12, the massage valve assembly 13 and the air pressure sensor 14 to control the operation of the air pump, the hardness regulating valve assembly, the massage valve assembly and the air pressure sensor. The air pump 11, the silencer filter 17, the regulating air intake pipe 122, the massage air intake pipe 132 and the air pressure sensor are connected in series in sequence. When the airbags corresponding to the massage valve group 131 and the regulating valve group 121 are inflated by polling and switching operations, the air pressure sensor can query the pressure values ​​of the airbags one by one, and the controller 10 and the corresponding algorithm determine the adjustment method of each area to achieve pressure adjustment of the corresponding airbag.

[0040] When the gas passes through the silencer filter device 17, a swirl is generated in the silencer filter device 17, which affects the gas outlet speed, thereby achieving a silencer effect.

[0041] Unless otherwise specified, in the present utility model, if there are terms such as "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicating orientation or position relationship, they are based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the terms describing the orientation or position relationship in the present utility model are only used for illustrative purposes and cannot be understood as limitations on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood in conjunction with the drawings and according to specific circumstances.

[0042] Unless otherwise specified and limited, in the present invention, the terms "disposed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0043] The above is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. An air circuit control system for an air mattress, characterized in that: It includes a plurality of regulating air bags, a plurality of massage air bags, and an air pump, a muffler filter, a massage valve assembly, a hardness regulating valve assembly, and an air pressure sensor connected in series in sequence; The massage valve assembly comprises a plurality of massage valve groups, each of which comprises a massage inflation valve and a massage exhaust valve, the massage inflation valve is a normally closed two-position three-way valve, the massage exhaust valve is a normally open two-position two-way valve, the air inlet of each massage inflation valve receives air from an air pump, the working port is connected to a massage airbag, and the air outlet is connected to the air inlet of the massage exhaust valve; The hardness regulating valve assembly comprises a plurality of regulating valve groups, each regulating valve group comprises a regulating inflation valve and a regulating exhaust valve, the regulating inflation valve is a normally closed two-position three-way valve, the regulating exhaust valve is a normally closed two-position two-way valve, the air inlet of each regulating inflation valve receives air supply from an air pump, the working port is connected to the regulating airbag, and the air outlet is connected to the air inlet of the regulating exhaust valve.

2. The air path control system of the air mattress according to claim 1, characterized in that: The hardness regulating valve assembly also includes an regulating air intake pipe and an regulating air exhaust pipe. The regulating air intake pipe is connected in series to the silencer and filter device. The air intake of the regulating inflation valve is connected to the regulating air intake pipe, and the air outlet of the regulating exhaust valve is connected to the regulating air exhaust pipe.

3. The air path control system of the air mattress according to claim 2, characterized in that: The massage valve assembly also includes a massage air inlet pipe, which is connected in series with the regulating air inlet pipe, and the air inlets of the massage inflation valves are all connected to the massage air inlet pipe.

4. The air path control system of the air mattress according to claim 3 is characterized in that: The air pressure sensor is connected in series to the massage air intake pipe.

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