Air valve type control driving device

Abstract

The utility model relates to the technical field of rehabilitation instruments, in particular to an air valve type control driving device, which comprises an air valve control mechanism and two air bag driving components arranged in parallel, and the two air bag driving components are respectively mounted at two thighs of a human body. The air valve control mechanism comprises a controller, an air pump assembly, an air guide pipe assembly and an air valve assembly, the controller is electrically connected with the air pump assembly and the air valve assembly, the air valve assembly corresponds to the two air bag driving components, the air pump assembly is connected with the air guide pipe assembly through the air valve assembly, and the air pump assembly is connected with the air guide pipe assembly through the air valve assembly. The air guide pipe assembly is connected with the air bag driving component. The walking assisting device is novel and simple in structure, a sensor does not need to be additionally arranged for work after detection, the controller drives the air pump assembly to drive the two air bag driving components to work alternately, and walking assisting is achieved; structural cost is low, weight is light, user burden is reduced, and use flexibility can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of rehabilitation equipment, in particular to a driving device controlled by an air valve. Background Art

[0002] The deterioration of walking function reduces the ability of the elderly to live independently and their quality of life, making them more prone to accidents such as gait deformation and instability and falls. Lower limb assisted exoskeleton is an external device to solve the above problems. However, traditional rigid lower limb assisted exoskeleton has some inevitable disadvantages: 1. Poor comfort. Due to the differences in the physiological size and force habits of users, rigid exoskeletons must use additional sensors and mechanism designs to achieve compatibility with different groups of people; 2. Poor portability. Rigid lower limb assisted exoskeleton is heavy and bulky, and is not lightweight and flexible, which makes it inconvenient for the elderly to use in daily activities. Summary of the invention

[0003] In view of the problems of the prior art, the utility model provides a driving device with an air valve type control, which has a novel and simple structure and does not require additional sensors for detection. The controller drives the air pump assembly to drive the two air bag expansion and contraction assemblies to work alternately, thereby achieving the staggered lifting of the user's two thighs and achieving walking assistance. In addition, the air bag expansion and contraction assembly adopts an air bag structure, which has a low structural cost and light weight, reduces the burden on users, and is conducive to improving flexibility of use.

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

[0005] A valve-controlled driving device includes an air valve control mechanism and two airbag driving components arranged in parallel, the two airbag driving components are respectively installed on the two thighs of the human body, the air valve control mechanism includes a controller, an air pump assembly, an air guide tube assembly and an air valve assembly, the controller is electrically connected to the air pump assembly and the air valve assembly respectively, the air valve assembly is respectively arranged corresponding to the two airbag driving components, the air pump assembly is connected to the air guide tube assembly through the air valve assembly, and the air guide tube assembly is connected to the airbag driving components.

[0006] Wherein, the air pump assembly includes a first air pump body and a second air pump body; the air guide tube assembly includes a first air guide tube group and a second air guide tube group; the air valve assembly includes a first air valve group component and a second air valve group component; the two air bag driving components include a first air bag expansion and contraction component and a second air bag expansion and contraction component respectively;

[0007] The first air pump body is connected to the first air guide tube assembly through the first air valve assembly, and the first air guide tube assembly is connected to the first air bag expansion and contraction assembly;

[0008] The second air pump body is connected to the second air guide tube assembly through the second air valve assembly, and the second air guide tube assembly is connected to the second air bag expansion and contraction assembly.

[0009] Among them, the two airbag driving components also include a first leg base band and a second leg base band, the first airbag expansion and contraction component is installed on the first leg base band, and the second airbag expansion and contraction component is installed on the second leg base band; the upper end and the lower end of the front end surface of the first leg base band are respectively provided with a first leg fixing strap; the upper end and the lower end of the front end surface of the second leg base band are respectively provided with a second leg fixing strap.

[0010] Among them, the first airbag expansion and contraction component includes two first L-shaped airbags and multiple first intermediate airbags, the two first L-shaped airbags and multiple first intermediate airbags are arranged in a row and evenly spaced on the back of the first leg base band, the two first L-shaped airbags are respectively arranged at the upper end and the lower end of the back of the first leg base band, one side of the first L-shaped airbag is fixedly connected to the first leg base band, and the other side of the first L-shaped airbag is a free end, multiple first intermediate airbags are located between the two first L-shaped airbags, one end edge of the first intermediate airbag is movably connected to the first leg base band, and the two first L-shaped airbags and multiple first intermediate airbags are respectively connected to the first air pump body through the first air guide tube group.

[0011] Among them, the first air duct group includes a first air duct and a second air duct, the first air valve group component includes a first switch air valve, a first three-way pipe and a first proportional air valve; the two first L-shaped airbags of the first airbag expansion and contraction assembly and a plurality of first intermediate airbags are evenly divided into a first airbag group and a second airbag group, the output end of the first air pump body is connected to the first proportional air valve, the output end of the first proportional air valve is respectively connected to the first switch air valve and the second air duct through the first three-way pipe, the first switch air valve is connected to the first airbag group through the first air duct, the first three-way pipe is connected to the second air duct, and the first proportional air valve is connected to the second airbag group through the second air duct.

[0012] Among them, the second airbag expansion and contraction assembly includes two second L-shaped airbags and multiple second intermediate airbags, the two second L-shaped airbags and the multiple second intermediate airbags are arranged in a row and at equal intervals on the back of the second leg base band, the two second L-shaped airbags are respectively arranged at the upper end and the lower end of the back of the second leg base band, one side of the second L-shaped airbag is fixedly connected to the second leg base band, and the other side of the second L-shaped airbag is a free end, the multiple second intermediate airbags are located between the two second L-shaped airbags, one end edge of the second intermediate airbag is movably connected to the second leg base band, the two second L-shaped airbags and the multiple second intermediate airbags are respectively connected to the second air pump body through the second air guide tube group.

[0013] Among them, the second air duct group includes a third air duct and a fourth air duct, and the second air valve group components include a second switch air valve, a second three-way pipe and a second proportional air valve; the two second L-shaped airbags and a plurality of second intermediate airbags of the second airbag expansion and contraction assembly are evenly divided into a third airbag group and a fourth airbag group, the output end of the second air pump body is connected to the second proportional air valve, and the output end of the second proportional air valve is respectively connected to the second three-way pipe and the second switch air valve, the second switch air valve is connected to the third airbag group through the third air duct, the second three-way pipe is connected to the fourth air duct, and the second proportional air valve is connected to the fourth airbag group through the fourth air duct.

[0014] Wherein, the first leg fixing strap and the second leg fixing strap are elastic straps or cloth straps.

[0015] Wherein, the driving device also includes a power supply module, and the power supply module is used to supply power to the controller, the air pump assembly and the air valve assembly.

[0016] Wherein, the controller is provided with a wireless communication module.

[0017] Beneficial effects of the utility model:

[0018] When the utility model is working, the controller starts the air pump assembly and the air valve assembly, and the air pump assembly inputs the air source to the air guide tube assembly through the air valve assembly, and provides gas to the two air bag driving components through the air guide tube assembly, so that the two air bag driving components are expanded to lift the user's thighs. The controller drives the two air bag driving components to work separately. When one air bag driving component expands, the other air bag driving component contracts, so that one air bag driving component drives the user to lift one thigh and the other air bag driving component contracts. When one air bag driving component contracts, the user puts down one thigh, and the other air bag driving component expands to drive the user to lift the other thigh, so as to achieve walking assistance. The utility model has a novel and simple structure and does not need to set up additional sensors for detection before working. The controller drives the air pump assembly to drive the two air bag driving components to work in a staggered manner, so as to achieve staggered lifting of the user's two thighs, so as to achieve walking assistance. In addition, the air bag driving component adopts an air bag structure, which has low structural cost and light weight, reduces the burden on users, and is conducive to improving the flexibility of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The utility model is a schematic diagram of the structure of a gas valve type controlled driving device.

[0020] Figure 2 It is a schematic diagram of the structure of the cooperation between the first airbag expansion and contraction component and the first leg base belt of the utility model.

[0021] Figure 3 It is a schematic diagram of the structure of the cooperation between the first leg base band and the movable bracket of the utility model.

[0022] Figure 4 It is a partial structural schematic diagram of the first airbag expansion and contraction assembly of the utility model.

[0023] Figure 5 It is a schematic structural diagram of the first L-shaped airbag of the utility model.

[0024] Figure 6 It is a schematic diagram of the structure of the cooperation between the movable part and the first intermediate airbag of the utility model.

[0025] exist Figures 1 to 6 Reference numerals in the drawings include:

[0026] 100. Gas valve control mechanism;

[0027] 1. Controller; 2. Airbag driving component; 3. First air pump body; 4. Second air pump body; 5. First airbag expansion and contraction assembly; 6. Second airbag expansion and contraction assembly; 7. First leg baseband; 8. Second leg baseband; 9. First leg fixing strap; 10. Second leg fixing strap; 11. First L-shaped airbag; 12. First intermediate airbag; 13. First air duct; 14. Second air duct; 15. First switch air valve; 16. First proportional air valve; 17. Second L-shaped airbag; 18. Second intermediate airbag; 19. Third air duct; 20. Fourth air duct; 21. Second switch air valve; 22. Second proportional air valve; 23. Power supply module; 24. Movable bracket; 25. Movable connecting piece; 26. First three-way pipe; 27. Second three-way pipe. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the protection scope of the utility model. It is understandable that the drawings are only provided for reference and illustration, and are not used to limit the utility model. The connection relationship shown in the drawings is only for the convenience of clear description and does not limit the connection method.

[0029] It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to another component, or there may be an intermediate component at the same time. Unless otherwise defined, all technical and scientific terms used in this document have the same meaning as those generally understood by technicians in the technical field of the present invention. It should also be noted that, unless otherwise clearly specified and limited, the terms "installed", "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 a mechanical connection, an electrical connection, or the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. The terms used in this document in the specification of the present utility model are only for the purpose of describing specific embodiments, and are not intended to limit the present utility model.

[0030] It should also be noted that in the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0031] Example 1

[0032] A valve-controlled driving device includes a valve control mechanism 100 and two airbag driving components 2 arranged in parallel. The two airbag driving components 2 are respectively installed on the two thighs of the human body. The valve control mechanism 100 includes a controller 1, an air pump assembly, an air guide tube assembly and an air valve assembly. The controller 1 is electrically connected to the air pump assembly and the air valve assembly respectively. The air valve assemblies are respectively arranged corresponding to the two airbag driving components 2. The air pump assembly is connected to the air guide tube assembly through the air valve assembly, and the air guide tube assembly is connected to the airbag driving component 2. Specifically, when the utility model is working, the controller 1 starts the air pump assembly and the air valve assembly, the air pump assembly inputs the air source to the air guide tube assembly through the air valve assembly, and provides gas to the two airbag driving components 2 through the air guide tube assembly, so that they expand to lift the user's thighs. The controller 1 drives the two airbag driving components 2 to work separately. When one airbag driving component 2 expands, the other airbag driving component 2 contracts, so that one airbag driving component 2 drives the user's one thigh to be lifted, and the other airbag driving component 2 contracts. When one airbag driving component 2 contracts, the user's one thigh is put down, and the other airbag driving component 2 expands to drive the user's other thigh to be lifted, so as to achieve walking assistance. The utility model has a novel and simple structure and does not require additional sensors for detection before working. The controller 1 drives the air pump assembly to drive the two airbag driving components 2 to work alternately, so as to achieve alternating and lifting the user's two thighs respectively, so as to achieve walking assistance. In addition, the airbag driving component 2 adopts an airbag structure, which has low structural cost and light weight, reduces the burden on users, and is conducive to improving the flexibility of use.

[0033] In the embodiment of the present application, the air pump assembly includes a first air pump body 3 and a second air pump body 4; the air guide tube assembly includes a first air guide tube group and a second air guide tube group; the air valve assembly includes a first air valve group component and a second air valve group component; the two airbag driving components 2 include a first airbag expansion and contraction component 5 and a second airbag expansion and contraction component 6 respectively; the first air pump body 3 is connected to the first air guide tube group through the first air valve group component, and the first air guide tube group is connected to the first airbag expansion and contraction component 5; the second air pump body 4 is connected to the second air guide tube group through the second air valve group component, and the second air guide tube group is connected to the second airbag expansion and contraction component 6. Specifically, under the above settings, the controller 1 controls the first air pump body 3 and the first air valve group component or controls the second air pump body 4 and the second air valve group component to work, so as to realize the separate control of the first airbag expansion and contraction component 5 and the second airbag expansion and contraction component 6 to work.

[0034] In the embodiment of the present application, the two airbag driving components 2 further include a first leg base band 7 and a second leg base band 8, the first airbag expansion and contraction assembly 5 is mounted on the first leg base band 7, and the second airbag expansion and contraction assembly 6 is mounted on the second leg base band 8; the upper end and the lower end of the front end surface of the first leg base band 7 are respectively provided with a first leg fixing strap 9; the upper end and the lower end of the front end surface of the second leg base band 8 are respectively provided with a second leg fixing strap 10. Specifically, the first leg fixing strap 9 and the second leg fixing strap 10 are elastic straps or cloth straps. Of course, the two ends of the first leg fixing strap 9 can be detachably connected to the first leg base band 7 respectively, or one end of the first leg fixing strap 9 can be detachably connected to one side of the first leg base band 7, and the other end of the first leg fixing strap 9 can be fixedly connected to the other side of the first leg base band 7. The detachably connected first leg fixing strap 9 is convenient for adjusting the connection position between the first leg fixing strap 9 and the first leg base band 7 according to different thigh sizes, and is flexible to use. The first leg fixing strap 9 and the first leg base band 7 can be detachably connected using conventional technologies such as adjustment buckles and locks; when elastic material straps are used, the two ends of the first leg fixing strap 9 can also be fixedly connected to the first leg base band 7, which can adapt to thighs of different sizes; wherein, the connection relationship structure between the second leg fixing strap 10 and the second leg base band 8 is consistent with the connection relationship structure between the first leg fixing strap 9 and the first leg base band 7.

[0035] In the embodiment of the present application, the first airbag expansion and contraction assembly 5 includes two first L-shaped airbags 11 and a plurality of first intermediate airbags 12. The two first L-shaped airbags 11 and the plurality of first intermediate airbags 12 are arranged in a row and evenly spaced on the back side of the first leg base band 7. The two first L-shaped airbags 11 are respectively arranged at the upper and lower ends of the back side of the first leg base band 7. One side of the first L-shaped airbag 11 is fixedly connected to the first leg base band 7, and the other side of the first L-shaped airbag 11 is a free end. The plurality of first intermediate airbags 12 are located between the two first L-shaped airbags 11. One end edge of the first intermediate airbag 12 is movably connected to the first leg base band 7. The two first L-shaped airbags 11 and the plurality of first intermediate airbags 12 are respectively connected to the first air pump body 3 through the first air guide tube group. Specifically, when in use, the first airbag driving component 2 is arranged on the back of a thigh of the user, and the first leg base band 7 fits closely to the back of the thigh of the user. Preferably, the upper end of the first leg base band 7 is located at the buttocks or the waist or between the two; when the first L-shaped airbag 11 and the first intermediate airbag 12 are not inflated with gas, the airbags are not squeezed against each other; when working, the first air pump body 3 inputs gas into the first L-shaped airbag 11 at the upper end through the first air guide tube group for inflation, and the gas then enters the multiple first intermediate airbags 12 for inflation, and finally enters the first L-shaped airbag at the lower end for inflation. The upper ends of the first L-shaped airbag 11 and the leg base band are located at the buttocks or the waist or between the two, that is, the first L-shaped airbag 11 at the upper end is also located there. When the first L-shaped airbag 11 is inflated, the first L-shaped The fixed end (the side where the first L-shaped airbag 11 is fixedly connected to the leg baseband) and the free end (the other side of the first L-shaped airbag) of the airbag 11 expand simultaneously, but the fixed end is constrained by the first leg baseband 7 and can therefore only expand outward, and the free end of the first L-shaped airbag 11 is simultaneously subjected to the squeezing force from the first intermediate airbag 12 and the fixed end of the first L-shaped airbag 11, thereby transferring the force (torque) to the fixed end. In other words, the fixed end of the first L-shaped airbag 11 provides a good fulcrum for the driving array. Furthermore, a plurality of first intermediate airbags 12 expand sequentially from top to bottom in the arrangement direction, squeezing each other to generate squeezing force, forming a bridge-type continuous structure that can transmit force. Under the bridge-type continuous structure that can transmit force, force is transmitted from the waist or buttocks to the legs, assisting the user in lifting their thighs and achieving walking assistance.

[0036] Furthermore, the first air duct group includes a first air duct 13 and a second air duct 14, and the first air valve group component includes a first switch air valve 15, a first three-way pipe 26 and a first proportional air valve 16; the two first L-shaped airbags 11 of the first airbag expansion and contraction assembly 5 and the multiple first intermediate airbags 12 are evenly divided into the first airbag group and the second airbag group, the output end of the first air pump body 3 is connected to the first proportional air valve 16, and the output end of the first proportional air valve 16 is respectively connected to the first switch air valve 15 and the second air duct 14 through the first three-way pipe, the first switch air valve 15 is connected to the first airbag group through the first air duct 13, the first three-way pipe 26 is connected to the second air duct 14, and the first proportional air valve 16 is connected to the second airbag group through the second air duct 14. Specifically, under the above-mentioned setting, the two first L-shaped airbags 11 and the multiple first intermediate airbags 12 of the first airbag expansion and contraction assembly 5 are evenly divided into a first airbag group and a second airbag group. Preferably, the first intermediate airbags 12 between the first airbag group and the second airbag group are distributed in a staggered interval, that is, a second intermediate airbag 18 of the second airbag group is arranged between two adjacent first intermediate airbags 12 in the first airbag group, and similarly, a first intermediate airbag 12 of the first airbag group is arranged between two adjacent first intermediate airbags 12 in the second airbag group (of course, the multiple first intermediate airbags 12 from top to bottom can also be divided into the first airbag group and the second airbag group according to odd numbers and even numbers;); further, the first air guide duct 13 is connected to the first L-shaped airbag 11 at the upper end and the multiple first intermediate airbags 12 in the first airbag group, and the second air guide duct 14 is connected to the multiple first intermediate airbags 12 in the second airbag group and the first L-shaped airbag 11 at the lower end; that is, the airflow between the first airbag group and the second airbag group is not connected; during operation, in order to improve The inflation efficiency of the first air pump body 3 adopts a pre-inflation mode, that is, when the first air pump body 3 starts working, the first switch air valve 15 is opened to inflate the airbags in the first airbag group. When the first switch air valve 15 is in a closed state, the airbags in the first airbag group can be kept in an inflated state at all times to ensure constant air pressure; and the airbags in the second airbag group, under the action of the first proportional air valve 16, are alternately inflated and deflated as the user's gait is implemented, that is, when the thigh needs to be lifted, the gas is introduced into the airbags in the second airbag group through the first proportional air valve 16 to expand the airbags to assist in lifting the thigh, and when the thigh needs to be lowered, the first proportional air valve 16 adjusts the gas pressure input into the second airbag group to facilitate the lowering of the thigh; wherein, the first proportional air valve 16 receives a command signal from the controller, performs power amplification through a proportional amplifier, and outputs a current proportionally to the proportional electromagnet of the first proportional air valve 16, and the proportional electromagnet outputs force and moves the position of the valve core proportionally, so that the first proportional air valve 16 can control the flow rate and direction of the airflow proportionally.

[0037] In the embodiment of the present application, the second airbag expansion and contraction assembly 6 includes two second L-shaped airbags 17 and a plurality of second intermediate airbags 18. The two second L-shaped airbags 17 and the plurality of second intermediate airbags 18 are arranged in a row and evenly spaced on the back side of the second leg base band 8. The two second L-shaped airbags 17 are respectively arranged at the upper and lower ends of the back side of the second leg base band 8. One side of the second L-shaped airbag 17 is fixedly connected to the second leg base band 8, and the other side of the second L-shaped airbag 17 is a free end. The plurality of second intermediate airbags 18 are located between the two second L-shaped airbags 17. One end edge of the second intermediate airbag 18 is movably connected to the second leg base band 8. The two second L-shaped airbags 17 and the plurality of second intermediate airbags 18 are respectively connected to the second air pump body 4 through a second air duct group. Specifically, the second airbag driving component 2 has the same structure as the first airbag driving component 2. When in use, the second airbag driving component 2 is arranged on the back of the other thigh of the user, and the second leg base band 8 fits tightly against the back of the thigh of the user. Preferably, the upper end of the second leg base band 8 is located at the buttocks or the waist or between the two. When the second L-shaped airbag 17 and the second middle airbag 18 are not inflated with gas, the airbags are not squeezed against each other. When working, the second air pump body 4 inputs gas into the second L-shaped airbag 17 at the upper end through the second air guide tube group for inflation, and the gas then enters the multiple second middle airbags 18 for inflation, and finally enters the second L-shaped airbag at the lower end for inflation. The upper ends of the second L-shaped airbag 17 and the leg base band are located at the buttocks or the waist or between the two, that is, the second L-shaped airbag 17 at the upper end is also located there. When the second L-shaped airbag 17 is inflated, the gas in the second air pump body 4 is inflated. When the bag 17 is inflated, the fixed end (the side of the second L-shaped airbag 17 fixedly connected to the leg baseband) and the free end (the other side of the second L-shaped airbag) of the second L-shaped airbag 17 expand simultaneously, but the fixed end is constrained by the second leg baseband 8 and can only expand outward, and the free end of the second L-shaped airbag 17 is simultaneously squeezed by the second intermediate airbag 18 and the fixed end of the second L-shaped airbag 17, thereby transferring the force (torque) to the fixed end. In other words, the fixed end of the second L-shaped airbag 17 provides a good fulcrum for the driving array. Furthermore, multiple second intermediate airbags 18 expand sequentially from top to bottom in the arrangement direction, squeezing each other to generate squeezing pressure, forming a bridge-type continuous structure that can transmit force. Under the bridge-type continuous structure that can transmit force, force is transmitted from the waist or buttocks to the legs, assisting the user in lifting their thighs and achieving walking assistance.

[0038] Among them, the second air duct group includes a third air duct 19 and a fourth air duct 20, and the second air valve group components include a second switch air valve 21, a second three-way pipe 27 and a second proportional air valve 22; the two second L-shaped airbags 17 of the second airbag expansion and contraction assembly 6 and a plurality of second intermediate airbags 18 are evenly divided into a third airbag group and a fourth airbag group, the output end of the second air pump body 4 is connected to the second proportional air valve 22, and the output end of the second proportional air valve 22 is respectively connected to the second three-way pipe 27 and the second switch air valve 21, the second switch air valve 21 is connected to the third airbag group through the third air duct 19, the second three-way pipe 27 is connected to the fourth air duct 20, and the second proportional air valve 22 is connected to the fourth airbag group through the fourth air duct 20. Specifically, under the above-mentioned setting, the two second L-shaped airbags 17 and the plurality of second intermediate airbags 18 of the second airbag expansion and contraction assembly 6 are evenly divided into a third airbag group and a fourth airbag group. Preferably, the second intermediate airbags 18 between the third airbag group and the fourth airbag group are distributed at staggered intervals, that is, a second intermediate airbag 18 of the fourth airbag group is arranged between two adjacent second intermediate airbags 18 in the third airbag group. Similarly, a second intermediate airbag 18 of the third airbag group is arranged between two adjacent second intermediate airbags 18 in the fourth airbag group (of course, the plurality of second intermediate airbags 18 from top to bottom can also be divided into the third airbag group and the fourth airbag group according to odd numbers and even numbers;); further, the third air guide duct 19 is connected to the second L-shaped airbag 17 at the upper end and the plurality of second intermediate airbags 18 in the third airbag group, and the fourth air guide duct 20 is connected to the plurality of second intermediate airbags 18 in the fourth airbag group and the second L type airbag 17 is connected; that is, the airflow between the third airbag group and the fourth airbag group is not connected; during operation, in order to improve the inflation efficiency of the second air pump body 4, a pre-inflation mode is adopted, that is, when starting to work, the second air pump body 4 outputs gas, the second switch air valve 21 is opened, and the airbags in the third airbag group are inflated. When the second switch air valve 21 is in a closed state, the airbags in the third airbag group can be kept in an inflated state at all times to ensure a constant air pressure; and the airbags in the fourth airbag group, under the action of the second proportional air valve 22, are alternately inflated and deflated as the user's gait is implemented, that is, when it is necessary to lift the thigh, gas is introduced into the airbags in the fourth airbag group through the second proportional air valve 22 to expand it to assist in lifting the thigh, and when the thigh needs to be lowered, the second proportional air valve 22 adjusts the gas pressure input into the fourth airbag group to facilitate the lowering of the thigh; wherein, the second proportional air valve 22 has the same structure and function as the first proportional air valve 16.

[0039] In the embodiment of the present application, the driving device further includes a power supply module 23, and the power supply module 23 is used to supply power to the controller 1, the air pump assembly and the air valve assembly.

[0040] In the embodiment of the present application, a plurality of movable brackets 24 are also movably arranged on the back of the first leg base band 7 and the second leg base band 8. The plurality of movable brackets 24 are arranged in a row at equal intervals. The movable brackets 24 correspond to the first intermediate airbag 12 / the second intermediate airbag 18 one by one. The movable brackets 24 are connected to one end edge of the first intermediate airbag 12 / the second intermediate airbag 18. Preferably, the first intermediate airbag 12 / the second intermediate airbag 18 is rectangular, elliptical or circular. Specifically, under the above arrangement, the movable brackets 24 can be movably connected to the back of the first leg base band 7 / the second leg base band 8. The movable brackets 24 are connected to the first intermediate airbag 12 / the second intermediate airbag 18 one by one. When the first intermediate airbag 12 / the second intermediate airbag 18 is inflated, the mutual movement and squeezing between the plurality of first intermediate airbags 12 / the second intermediate airbag 18 is facilitated.

[0041] Furthermore, the movable bracket 24 includes two movable connecting members 25 arranged in a positive relationship, one end of the two movable connecting members 25 can be connected to the back of the first leg base band 7 / the second leg base band 8 respectively by sewing, a connection gap is formed between the other ends of the two movable connecting members 25, and the edge of one end of the two first intermediate airbags 12 or the two second intermediate airbags 18 is connected to the connection gap formed between the other ends of the two movable connecting members 25. Specifically, the first intermediate airbag 12 / the second intermediate airbag 18 is formed by hot-pressing and bonding two pieces of non-retractable TPU flexible fabric, the side of the first intermediate airbag 12 / the second intermediate airbag 18 penetrates the air guide assembly to achieve the expansion and contraction of the airbag, and the outer edge of the airbag is sealed by hot-pressing bonding and then connected to the connection gap formed between the other ends of the two movable connecting members 25, so that the installation is accurate and convenient. Preferably, the movable connecting member 25 is a deformable material, such as TPU flexible fabric.

[0042] In the embodiment of the present application, the two movable connecting members 25 are arranged in a triangle. Specifically, under the above arrangement, it is beneficial to improve the stability and reliability of the connection between the movable connecting member 25 and the intermediate airbag.

[0043] Example 2

[0044] The difference between Example 2 of the present application and Example 1 is that the movable connecting member 25 is made of flexible cloth.

[0045] Example 3

[0046] The difference between Example 3 of the present application and Example 1 is that the movable connecting member 25 is made of elastic material. Specifically, the movable connecting member 25 made of elastic material has elastic recovery ability, so that when the L-shaped airbag and the middle airbag expand and squeeze each other, the movable connecting member 25 deforms under its elasticity, and when the L-shaped airbag and the middle airbag shrink, the movable connecting member 25 drives the middle airbag to return to its original position under its elastic recovery force.

[0047] Embodiment 4:

[0048] In the fourth embodiment of the present application, the controller 1 is provided with a wireless communication module. Specifically, the wireless communication module can be connected to an external intelligent terminal or sensor to facilitate sensing control, and can also facilitate remote monitoring and control through an intelligent terminal to improve intelligence.

[0049] The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Although the utility model is disclosed as a preferred embodiment as above, it is not used to limit the utility model. Any technician familiar with this profession can make some changes or modifications to equivalent embodiments of equivalent changes by using the technical content disclosed above without departing from the scope of the technical solution of the utility model. However, any simple modification, equivalent change and modification made to the above embodiments according to the technology of the utility model, which does not depart from the content of the technical solution of the utility model, belongs to the scope of the technical solution of the utility model.

Claims

1. A valve-controlled driving device, characterized in that: It includes an air valve control mechanism and two airbag driving components arranged in parallel, the two airbag driving components are respectively installed on the two thighs of the human body, the air valve control mechanism includes a controller, an air pump assembly, an air guide tube assembly and an air valve assembly, the controller is electrically connected to the air pump assembly and the air valve assembly, the air valve assembly is respectively arranged corresponding to the two airbag driving components, the air pump assembly is connected to the air guide tube assembly through the air valve assembly, and the air guide tube assembly is connected to the airbag driving components.

2. A valve-controlled driving device according to claim 1, characterized in that: The air pump assembly includes a first air pump body and a second air pump body; the air guide tube assembly includes a first air guide tube group and a second air guide tube group; the air valve assembly includes a first air valve group component and a second air valve group component; the two air bag driving components include a first air bag expansion and contraction component and a second air bag expansion and contraction component respectively; The first air pump body is connected to the first air guide tube assembly through the first air valve assembly, and the first air guide tube assembly is connected to the first air bag expansion and contraction assembly; The second air pump body is connected to the second air guide tube assembly through the second air valve assembly, and the second air guide tube assembly is connected to the second air bag expansion and contraction assembly.

3. A valve-controlled driving device according to claim 2, characterized in that: The two airbag driving components also include a first leg base band and a second leg base band, the first airbag expansion and contraction assembly is installed on the first leg base band, and the second airbag expansion and contraction assembly is installed on the second leg base band; the upper end and the lower end of the front end surface of the first leg base band are respectively provided with a first leg fixing strap; the upper end and the lower end of the front end surface of the second leg base band are respectively provided with a second leg fixing strap.

4. A valve-controlled driving device according to claim 3, characterized in that: The first airbag expansion and contraction assembly includes two first L-shaped airbags and multiple first intermediate airbags. The two first L-shaped airbags and multiple first intermediate airbags are arranged in a row and evenly spaced on the back of the first leg base band. The two first L-shaped airbags are respectively arranged at the upper end and the lower end of the back of the first leg base band. One side of the first L-shaped airbag is fixedly connected to the first leg base band, and the other side of the first L-shaped airbag is a free end. Multiple first intermediate airbags are located between the two first L-shaped airbags. One end edge of the first intermediate airbag is movably connected to the first leg base band. The two first L-shaped airbags and multiple first intermediate airbags are respectively connected to the first air pump body through the first air guide tube group.

5. The valve-controlled driving device according to claim 4, characterized in that: The first air duct group includes a first air duct and a second air duct, and the first air valve group component includes a first switch air valve, a first three-way pipe and a first proportional air valve; the two first L-shaped airbags and a plurality of first intermediate airbags of the first airbag expansion and contraction assembly are evenly divided into a first airbag group and a second airbag group, the output end of the first air pump body is connected to the first proportional air valve, and the output end of the first proportional air valve is respectively connected to the first switch air valve and the second air duct through the first three-way pipe, the first switch air valve is connected to the first airbag group through the first air duct, the first three-way pipe is connected to the second air duct, and the first proportional air valve is connected to the second airbag group through the second air duct.

6. The valve-controlled driving device according to claim 3, characterized in that: The second airbag expansion and contraction assembly includes two second L-shaped airbags and multiple second intermediate airbags. The two second L-shaped airbags and the multiple second intermediate airbags are arranged in a row and at equal intervals on the back of the second leg base band. The two second L-shaped airbags are respectively arranged at the upper end and the lower end of the back of the second leg base band. One side of the second L-shaped airbag is fixedly connected to the second leg base band, and the other side of the second L-shaped airbag is a free end. The multiple second intermediate airbags are located between the two second L-shaped airbags. One end edge of the second intermediate airbag is movably connected to the second leg base band. The two second L-shaped airbags and the multiple second intermediate airbags are respectively connected to the second air pump body through the second air guide tube group.

7. The valve-controlled driving device according to claim 6, characterized in that: The second air duct group includes a third air duct and a fourth air duct, and the second air valve group component includes a second switch air valve, a second three-way pipe and a second proportional air valve; the two second L-shaped airbags and a plurality of second intermediate airbags of the second airbag expansion and contraction assembly are evenly divided into a third airbag group and a fourth airbag group, the output end of the second air pump body is connected to the second proportional air valve, and the output end of the second proportional air valve is respectively connected to the second three-way pipe and the second switch air valve, the second switch air valve is connected to the third airbag group through the third air duct, the second three-way pipe is connected to the fourth air duct, and the second proportional air valve is connected to the fourth airbag group through the fourth air duct.

8. The valve-controlled driving device according to claim 3, characterized in that: The first leg fixing strap and the second leg fixing strap are elastic straps or cloth straps.

9. The valve-controlled driving device according to claim 1, characterized in that: The driving device also includes a power supply module, which is used to supply power to the controller, the air pump assembly and the air valve assembly.

10. The valve-controlled driving device according to claim 1, characterized in that: The controller is provided with a wireless communication module.

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