Hydrodynamic massage sofa

Abstract

The invention belongs to the technical field of intelligent sofas, and provides a hydrodynamic massage sofa. The invention relates to a hydrodynamic massage sofa which is characterized by comprising a sofa framework, a combined framework, a base tension spring, a high-elasticity sponge, a backrest, a small silica gel water bag, a water bag seat cushion, a water bag backrest, a high-pressure water pump, a water electromagnetic valve group, a control system, a silica gel hose combination, a water tank, sofa armrests, sofa foot supports, sofa leg supports and a sofa cover. In conclusion, the hydrodynamic massage sofa is not only reasonable in design, but also simple to operate and capable of realizing various forms, meanwhile, the device can be used for hot compress, and the comfort level is effectively improved; and each small water bag of the water bag seat cushion, the water bag backrest, the water bag leg support and the water bag foot support enables a human body to be attached to all parts of the surface of the sofa through water power, so that the massage effect which is more comfortable than that of mechanical massage is achieved. Therefore, the device is suitable for industrial popularization.

Description

Technical Field

[0001] The invention relates to the technical field of smart sands, and in particular to a water-powered massage sofa. Background Art

[0002] Most sofas on the market are ordinary sofas and functional sofas with convertible postures. Even massage chairs are designed with a hollow center between the seat and the back, which makes it extremely uncomfortable for people to sit on. At the same time, the massage function is mostly mechanical roller massage, which cannot massage all parts of the body that fit on the surface of the massage chair, and it takes up a certain amount of space in the bedroom.

[0003] The present invention cleverly combines the sofa and the massage chair together, and can convert various massage postures of the sofa. At the same time, the hydrodynamic massage function can massage any part of the human body that fits on the surface of the sofa. The water in the small water bag pad composed of countless small silica gel water bags has a heating function, which can have a hot compress effect on the human body, and the hydrodynamic massage function is more comfortable than the mechanical massage effect. Summary of the invention

[0004] In view of the defects in the prior art, the present invention provides a water-powered massage sofa to improve comfort.

[0005] The present invention provides a water-powered massage sofa, which is characterized by comprising: a sofa frame, a combined frame, a base tension spring, a high-elastic sponge, a backrest, a small silicone water bag, a water bag seat cushion, a water bag backrest, a high-pressure water pump, a water solenoid valve group, a control system, a silicone hose combination, a water tank, a sofa armrest, a sofa footrest, a sofa leg rest and a sofa cover.

[0006] Furthermore, it also includes: an electric push rod, one end of which is installed in the sofa frame, and the other end is connected to the combined frame and drives the combined frame to move. In actual use, the electric push rod can make the sofa telescopic and reclining. After the sofa is converted to lying, it is equipped with a sofa leg support and a sofa foot support. The posture change of the sofa is controlled separately by an electric switch installed on the side of the sofa armrest. A worm gear conversion motor is provided between the sofa leg support and the sofa foot support, and the steering between the sofa leg support and the sofa foot support is achieved by driving the worm gear conversion motor. A track is also provided, and the combined frame is limited by the track.

[0007] Furthermore, the combined skeleton includes steel pipes and steel plates, wherein the steel pipes and steel plates are provided at multiple locations, and the steel pipes and steel plates are connected.

[0008] Furthermore, it also includes a steel tube frame, the base tension spring is arranged in the steel tube frame, the high-elastic sponge is arranged on the steel tube frame; the water bag seat cushion and the water bag backrest are both arranged on the high-elastic sponge. In actual use, the seat cushion and backrest of the sofa are both four-layer structures: the bottom layer is a steel tube frame with tension springs, the layer above the frame is a high-elastic sponge with holes, and the layer above the sponge is a water bag seat cushion and water bag backrest composed of several small silicone water bags arranged, and the outside of these three layers are all wrapped by seat covers. At the same time, the sofa leg support and sofa foot support are composed of wooden boards, sponges, small silicone water bag pads and sofa covers.

[0009] Furthermore, it also includes a water flow pipeline, the water bag seat cushion and the water bag backrest are both provided with a plurality of small silicone water bags, and the small silicone water bags are evenly arranged; the high-elastic sponge is provided with a plurality of through holes, and passes through the high-elastic sponge in the upper and lower directions, and one end of the water flow pipeline is connected to the small silicone water bag.

[0010] Furthermore, it also includes a main water tank, a subsidiary water tank, a main pipeline, and a subsidiary pipeline; the water solenoid valve group also includes a plurality of three-way solenoid valves.

[0011] There is a water inlet at the center of the bottom surface of each small silicone water bag in the center of the water bag cushion and the water bag backrest, which is the same width as the human body, and a water outlet that is half the size of the water inlet is located on the side of the bottom surface of the small water bag. The water inlet and the water outlet have a corresponding high-temperature resistant silicone soft water pipe that passes through the specific holes of the tension spring and the high-elastic sponge layer and connects to each water inlet and outlet. And a two-position three-way solenoid valve is connected between each vertical row of water inlets and the next water inlet, so that the water inlets of each row of small water bags on the right side centered on the seat are connected to each other. The water inlets of each row of small water bags on the left are connected to each other. And the water outlets of each vertical row of small silicone water bags are connected to a main pipeline.

[0012] At the same time, each water outlet pipe is connected to a small auxiliary water tank, and a water pipe is connected to the auxiliary water tank below and connected to a pressure drain valve and a solenoid valve to connect to the main water tank and the auxiliary water tank are hidden in the sofa armrest. A water outlet pipe is connected to the water inlet pipe of the high-pressure water pump below the main water tank. The water outlet pipe of the high-pressure water pump is connected to a water solenoid valve group with one inlet and five outlets. One of the water outlets is connected to the right part of the backrest and the water inlet pipe of each vertical small water bag is connected. The second outlet is connected to the water inlet pipe of each vertical small water bag connected to the left part of the backrest. The third outlet is connected to the water inlet pipe of each vertical small water bag connected to the right part of the seat cushion. The fourth outlet is connected to the water inlet pipe of each vertical small water bag connected to the left part of the seat cushion. When the water flow of one and two circulates through the pipe to the last vertical pipe, it is the water outlet pipe of the water flow, and the water outlet pipe is connected to the main water tank in turn, and the water circulates into the water tank. The third and fourth circulation outlet pipes are connected to the inlet of the water circulation pipes of the sofa leg support and the sofa foot support (the structure of the small silicone water bag of the sofa leg support and the sofa foot support is the same as that of the water bag seat cushion and the water bag backrest). Therefore, the outlet pipe of the circulation pipe is connected to the main water tank after the water flow circulates through the sofa leg support and the sofa foot support. The fifth outlet is only responsible for charging and discharging the small silicone water bag in the water bag seat cushion and the water bag backrest without massage area.

[0013] Furthermore, the control system, the high-pressure water pump, the water solenoid valve group and the control system are all installed in the sofa and located in the armrest. The control system can control the water supply force of the high-pressure water pump (generally within 1 to 14 kilograms), and the water supply pressure of the four solenoid valves allocated at the same time after the instruction is given is the same water supply force (generally within 1 to 14 kilograms), and the outlet pipes of the four solenoid valves are connected to a 4-kilogram pressure relief valve to ensure that the water supply force to the small water bag does not exceed 4 kilograms. When the command solenoid valve is turned on, the high-pressure water pump starts to run, and at the same time, the time relay is used to instruct each two-position three-way solenoid valve in the corresponding pipeline in turn. The instruction can automatically set the time, generally 3 seconds, 4 seconds, and 5 seconds. When the instruction is given to the first two-position three-way solenoid valve, the pipeline valve is closed.

[0014] Furthermore, the water-powered massage sofa achieves a massage effect by filling and discharging water in each small water bladder.

[0015] At the same time, open the valve leading to the small water bag, then the water will rush to the inner wall surface of the small water bag, and the small water bag will also expand rapidly, so that the force generated by the water flow and the expansion force of the small water bag act on the human body sitting on the sofa at the same time to achieve a massage effect.

[0016] After the command is completed, the valve leading to the small water bag is closed, the pipeline valve is opened, and the second small water bag is commanded at the same time, until the small water bag in the last massage area. When the last two-position three-way solenoid valve completes the command, the first two-position three-way solenoid valve is reset, and the cycle repeats.

[0017] When the massage is over and the person leaves the sofa (a person leaving sensor is installed on the upper wall of the sofa cover), the control system will send a water filling instruction to the five solenoid valves to the water bag seat cushion, water bag backrest, water bag sofa leg support, and water bag sofa foot support. At this time, after all the small water bags in the massage area are filled, all the two-position three-way valves leading to the small water bags will be closed, and the water in each vertical water outlet pipe of the water bag seat cushion, water bag backrest, water bag sofa leg support, and water bag sofa foot support will flow to the small auxiliary water tank. When the pressure of all the small water bags is the same, the pressure relief valve of the auxiliary water tank is closed, and the connected solenoid valve is also closed, and the sofa returns to the state at the same time.

[0018] Furthermore, it also includes a heating system, which is installed in the main water tank and is used to heat the water to 30-45°C. At the same time, in actual use, the heating system, the water bag seat cushion, the water bag backrest, the water bag sofa leg support, and the water bag sofa foot support are connected to the inside of each vertical row of small water bags with silicone heating wires, and the water in each water bag is heated to 30-45°C through the silicone heating wires. The main water tank is equipped with a DPS heating system, and the heating system can be turned on or off by starting the system. All control systems are controlled by a control panel, and only the sofa conversion switch is a separate manual switch.

[0019] It can be seen from the above technical solution that the beneficial effects of the water-powered massage sofa provided by the present invention are: (1) The sofa seat cushion, backrest, leg rest and footrest are all five-layer structures, i.e. a steel tube frame with specific tension springs, a high-elastic sponge with specific holes on the frame, and a water-bag seat cushion and backrest composed of small silicone square water bags with a length of 48 mm, a width of 48 mm and a height of 30 mm on the sponge, and are all wrapped with seat covers. A water flow pipe is arranged under the tension spring of the frame, and a silicone hose passes through the specific holes of the high-elastic sponge layer and connects to each small silicone water bag, so as not to affect the softness and comfort of the sofa.

[0020] (2) The control system will orderly control the filling and discharging of each small silicone water bag of the water bag cushion. The water flow will quickly expand the small silicone water bag, and the water column will also impact the inner upper wall of the small silicone water bag. These two forces will form a massage for every part of the human body that fits the sofa. At the same time, a water heating system is installed, which can have a hot compress effect on the human body.

[0021] (3) In short, the water-powered massage sofa is a clever combination of a sofa and a massage chair. It changes the rigid massage effect of ordinary massage chairs that rely on two rollers. Instead, it relies on the soft power of water to make every part of the body that fits the sofa get the effect of beating, kneading, and massaging. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the specific embodiments of the present invention, the following briefly introduces the drawings required for the specific embodiments or the prior art description. In all the drawings, each element or part is not necessarily drawn according to the actual scale.

[0023] Figure 1 A three-dimensional cross-sectional schematic diagram of a water-powered massage sofa provided by an embodiment of the present invention Figure 2 A left view of a water-powered massage sofa provided by an embodiment of the present invention; Figure 3 A left view of a water-powered massage sofa after conversion provided by an embodiment of the present invention; Figure 4 A schematic diagram of the internal cross-sectional structure of a water-powered massage sofa provided in an embodiment of the present invention from a left side view; Figure 5 A schematic diagram of the internal cross-sectional structure of a water-powered massage sofa from the right side provided by an embodiment of the present invention; Figure 6 A schematic diagram of the internal structure of a water-powered massage sofa from a top view provided by an embodiment of the present invention; Reference numerals: Sofa frame 1, combined frame 2, base tension spring 3, high-elastic sponge 4, backrest 5, small silicone water bag 6, water bag seat cushion 7, water bag backrest 8, high-pressure water pump 9, water solenoid valve group 10, control system 11, silicone hose combination 12, water tank 13, sofa armrest 14, sofa footrest 15, sofa leg support 16, sofa seat cover 17, electric push rod 18, steel pipe frame 19, water flow pipeline 20, main pipeline 21, auxiliary pipeline 22; heating system 23, drive turbine worm conversion motor 24, track 25, steel pipe 201, steel plate 202, through hole 401, main water tank 131, auxiliary water tank 132, three-way solenoid valve 1001. DETAILED DESCRIPTION

[0024] The following embodiments of the technical solution of the present invention are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and are therefore only used as examples, and cannot be used to limit the protection scope of the present invention.

[0025] The embodiment is basically as shown in the attached Figures 1 to 6 As shown: like Figure 1 - Figure 6As shown, the hydrodynamic massage sofa provided in this embodiment can improve comfort.

[0026] The present invention provides a water-powered massage sofa, comprising: a sofa frame 1, a combined frame 2, a base tension spring 3, a high-elastic sponge 4, a backrest 5, a small silica gel water bag 6, a water bag seat cushion 7, a water bag backrest 8, a high-pressure water pump 9, a water solenoid valve group 10, a control system 11, a silica gel hose combination 12, a water tank 13, a sofa armrest 14, a sofa footrest 15, a sofa legrest 16 and a sofa cover. In actual use, the sofa seat cushion, backrest 5, sofa legrest 16 and sofa footrest 15 are all five-layer structures, that is, a steel pipe 201 frame with a specific tension spring, a high-elastic sponge 4 with a specific hole position on the frame, and a water bag seat cushion and backrest 5 composed of a small silica gel square water bag with a length of 48mm, a width of 48mm and a height of 30mm on the sponge, and a seat cover is wrapped around them. A water flow pipeline 20 is arranged under the frame tension spring, and a silica gel hose passes through the specific hole position of the 4 layers of high-elastic sponge to connect with each small silica gel water bag 6, so as not to affect the softness and comfort of the sofa. The control system 11 will orderly control the filling and discharging of each small silica gel water bag of the water bag cushion. The water flow will quickly expand the small silica gel water bag 6, and the water flow column will also impact the inner upper wall of the small silica gel water bag 6. These two forces will form a massage for each part of the human body that fits the sofa. At the same time, a water heating system is installed, which can have a hot compress effect on the human body. In short, the water-powered massage sofa is a clever fusion of the sofa and the massage chair. It changes the rigid massage effect of ordinary massage chairs relying on two rollers. Instead, it relies on the soft force of water to make each part of the human body and the sofa fit to get the effect of beating, kneading, and massaging.

[0027] In this embodiment, it also includes: an electric push rod 18, one end of which is installed in the sofa frame 1, and the other end is connected to the combined frame 2, and drives the combined frame 2 to move. In actual use, the electric push rod 18 can make the sofa telescopic and lying. After the sofa is converted to lying, it has a sofa leg support 16 and a sofa foot support 15. The posture change of the sofa is controlled separately by an electric switch installed on the side of the sofa armrest 14. A worm gear conversion motor 24 is provided between the sofa leg support 16 and the sofa foot support 15. By driving the worm gear conversion motor 24, the steering between the sofa leg support 16 and the sofa foot support 15 is realized. A track 25 is also provided, and the combined frame 2 is limited by the track 25.

[0028] In this embodiment, the combined frame 2 includes a steel tube 201 and a steel plate 202, wherein the steel tube 201 and the steel plate 202 are provided at multiple locations, and the steel tube 201 and the steel plate 202 are connected. At the same time, in this embodiment, it also includes a steel tube frame 19, the base tension spring 3 is provided in the steel tube frame 19, the high elastic sponge 4 is provided on the steel tube frame 19; the water bag seat cushion 7 and the water bag backrest 8 are both provided on the high elastic sponge 4. In actual use, the seat cushion and backrest 5 of the sofa are both four-layer structures: the bottom layer is a steel tube frame 19 with tension springs, the upper layer of the frame is a high elastic sponge 4 with holes, and the upper layer of the sponge is a water bag seat cushion 7 and a water bag backrest 8 composed of several small silicone water bags 6 arranged, and the outside of these three layers are all wrapped by seat covers. At the same time, the sofa leg support 16 and the sofa foot support 15 are composed of wooden boards, sponges, small silicone water bags 6 pads and sofa covers.

[0029] In this embodiment, a water flow pipe 20 is also included. The water bag seat cushion 7 and the water bag backrest 8 are both provided with multiple small silicone water bags 6, and the small silicone water bags 6 are evenly arranged; the high elastic sponge 4 is provided with multiple through holes 401, and runs through the high elastic sponge 4 in the up and down direction, and one end of the water flow pipe 20 is connected and communicated with the small silicone water bag 6. In this embodiment, a main water tank 13113, a secondary water tank 13213, a main pipe 21, and a secondary pipe are also included; the water solenoid valve group 10 also includes multiple three-way solenoid valves 1001. There is a water inlet at the center of the bottom surface of each small silicone water bag 6 at the same width as the human body in the center of the water bag seat cushion and the water bag backrest 8, and there is a water outlet at the side of the bottom surface of the small water bag that is one time smaller than the water inlet. The water inlet and the water outlet have a corresponding high temperature resistant silicone soft water pipe that passes through the specific holes of the tension spring and the 4 layers of high elastic sponge and connects with each water inlet and water outlet. Each vertical water inlet is connected to the next water inlet by a two-position three-way solenoid valve 1001, so that the water inlets of each row of small water bags on the right side with the seat as the center are connected to each other. The water inlets of each row of small water bags on the left side are connected to each other. The water outlets of each vertical silica gel small water bag 6 are connected to a main pipeline 21. At the same time, each water outlet pipe is connected to a small auxiliary water tank 13213, and a water pipe is connected below the auxiliary water tank 13213 and a pressure drain valve and a solenoid valve are connected to the main water tank 13113. The main water tank 13113 and the auxiliary water tank 13213 are hidden in the sofa armrest 14. A water outlet pipe is connected below the main water tank 13113 and is connected to the water inlet pipe of the high-pressure water pump 9. The water outlet pipe of the high-pressure water pump 9 is connected to a water solenoid valve group 10 with one inlet and five outlets. One of the water outlets is connected to the right side of the backrest 5, and the water inlet pipes of each vertical small water bag are connected. The second outlet is connected to the water inlet pipe of each vertical small water bag connected to the left side of the backrest 5. The third outlet is connected to the water inlet pipe of each vertical row of small water bags connected to the right side of the seat cushion. The fourth outlet is connected to the water inlet pipe of each vertical row of small water bags connected to the left side of the seat cushion. When the water flow of one and two circulates through the pipe to the last vertical row of pipes, it becomes the water outlet pipe of the water flow, and the water outlet pipe is connected to the main water tank 13113 in turn, and the water circulates into the water tank 13. The third and fourth circulation outlet pipes are connected to the inlet of the water circulation pipe of the sofa leg support 16 and the sofa foot support 15 (the structure of the small silicone water bag 6 of the sofa leg support 16 and the sofa foot support 15 is the same as the structure of the water bag seat cushion 7 and the water bag backrest 8). Therefore, the outlet pipe of the circulation pipe is connected to the main water tank 13113 after the water flow circulates through the sofa leg support 16 and the sofa foot support 15. The fifth water outlet is only responsible for filling and discharging water in the small silicone water bag 6 in the water bag seat cushion 7 and the water bag backrest 8 which do not have a massage area.

[0030] In this embodiment, the control system 11, the high-pressure water pump 9, the water solenoid valve group 10 and the control system 11 are all installed in the sofa and located in the armrest. The control system 11 can control the water supply strength of the high-pressure water pump 9 (generally within 1 to 14 kilograms) and the water supply pressure of the four solenoid valves allocated at the same time after the instruction is given is the same water supply strength (generally within 1 to 14 kilograms), and the outlet pipes of the four solenoid valves are connected to a 4-kilogram pressure relief valve to ensure that the water supply strength to the small water bag does not exceed 4 kilograms. When the instruction solenoid valve is turned on, the high-pressure water pump 9 starts to run, and at the same time, the time relay is used to instruct each two-position three-way solenoid valve 1001 in the corresponding pipeline in turn. The instruction can automatically set the time, generally 3 seconds, 4 seconds, and 5 seconds. When the instruction is given to the first two-position three-way solenoid valve 1001, the pipeline valve is closed. At the same time, the valve leading to the small water bag is opened, and the water will rush to the inner wall surface of the small water bag, and the small water bag will also expand rapidly, so that the force generated by the water flow and the expansion force of the small water bag act on the human body sitting on the sofa at the same time to achieve a massage effect. After the command is completed, the valve leading to the small water bag is closed, the pipeline valve is opened, and the second small water bag is commanded at the same time, until the small water bag in the last massage area. When the last two-position three-way solenoid valve 1001 completes the command, the first two-position three-way solenoid valve 1001 is reset to repeat the cycle. When the massage is over and the person leaves the sofa (a person leaving sensor is installed on the upper wall surface of the sofa cover), the control system 11 will send a water filling instruction to the five solenoid valves to the water bag seat cushion 7 and water bag backrest 8, water bag sofa leg support 16, and water bag sofa foot support 15. At this time, after all the small water bags in the massage area are filled, all the two-position three-way valves leading to the small water bags will be closed, and the water in each vertical water outlet pipe of the water bag seat cushion 7, water bag backrest 8, water bag sofa leg support 16, and water bag sofa foot support 15 will flow to the small auxiliary water tank 13213. When the pressure of all the small water bags is the same, the pressure relief valve of the auxiliary water tank 13213 is closed, and the connected solenoid valve is also closed, and the sofa returns to the sofa state at the same time.

[0031] In this embodiment, a heating system is also included, which is installed in the main water tank 13113 and is used to heat water to 30-45°C. At the same time, in actual use, the heating system, the water bag seat cushion 7, the water bag backrest 8, the water bag sofa leg support 16, and the water bag sofa foot support 15 are connected to the inside of each vertical row of small water bags with a silicone heating wire, and the water in each water bag is heated to 30-45°C by the silicone heating wire, and the main water tank 13113 is equipped with a DPS heating system, and the heating system can be turned on or off by a switch. All control systems 11 are controlled by a control panel, and only the switch for sofa conversion is a separate manual switch.

[0032] In this embodiment, the water-powered massage sofa achieves a massage effect by filling and discharging water in each small water bladder.

[0033] To sum up, this kind of water-powered massage sofa is not only reasonably designed, but also easy to operate, and can be realized in various forms. At the same time, it can also perform hot compresses and effectively improve comfort; therefore, the device is suitable for industry promotion.

[0034] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and specification of the present invention.

Claims

1. A water-powered massage sofa, characterized in that: include: Sofa frame, combined frame, base tension spring, high-elastic sponge, backrest, small silicone water bag, water bag seat cushion, water bag backrest, high-pressure water pump, water solenoid valve group, control system, silicone hose combination, water tank, sofa armrests, sofa footrests, sofa leg rests and sofa covers.

2. A water-powered massage sofa according to claim 1, characterized in that: Also includes: An electric push rod, one end of which is installed in the sofa frame, and the other end of which is connected to the combined frame and drives the combined frame to move.

3. The water-powered massage sofa according to claim 1, characterized in that: The combined skeleton comprises steel pipes and steel plates, wherein the steel pipes and the steel plates are both provided at multiple locations, and the steel pipes and the steel plates are connected.

4. The water-powered massage sofa according to claim 1, characterized in that: It also includes a steel pipe frame, the base tension spring is arranged in the steel pipe frame, the high-elastic sponge is arranged on the steel pipe frame; the water bag seat cushion and the water bag backrest are both arranged on the high-elastic sponge.

5. The water-powered massage sofa according to claim 4, characterized in that: It also includes a water flow pipeline. The water bag seat cushion and the water bag backrest are both provided with multiple small silicone water bags, and the small silicone water bags are evenly arranged; the high-elastic sponge is provided with multiple through holes, which penetrate the high-elastic sponge in the upper and lower directions, and one end of the water flow pipeline is connected to the small silicone water bag.

6. The water-powered massage sofa according to claim 4, characterized in that: It also includes a main water tank, an auxiliary water tank, a main pipeline, and an auxiliary pipeline; the water solenoid valve group also includes a plurality of three-way solenoid valves.

7. The water-powered massage sofa according to claim 1, characterized in that: The control system, the high-pressure water pump, the water solenoid valve group and the control system are all installed in the sofa and located in the armrest.

8. The water-powered massage sofa according to claim 1, characterized in that: It also includes a heating system, which is installed in the main water tank and is used to heat water to 30°C-45°C.

9. The water-powered massage sofa according to claim 1, characterized in that: The water-powered massage sofa achieves the massage effect by filling and releasing water in each small water bladder.

Images