Pneumatic waist support and intelligent equipment

Abstract

The embodiment of the utility model discloses a pneumatic waist support and intelligent equipment, the pneumatic waist support comprises a controller, an air source, a control valve group, a support air bag group and a detection assembly, the air source is connected with the control valve group through a corresponding pipeline; the detection assemblies are arranged in at least two detection areas on the supporting surface of the supporting air bag set and used for detecting pressure applied to the supporting air bag set by the back or the waist of the human body, the control valve set is connected with the supporting air bag set through corresponding pipelines, and the controller is independently connected with the control valve set and the detection assemblies. The detection assembly can make contact with the waist of the human body and is matched with the waist curve of the human body, so that when the change of the pressure applied to the pneumatic waist support by the waist of the human body is indirectly detected by detecting the pressure change of the detection assembly, the deviation of the pressure applied to the pneumatic waist support by the waist of the human body can be reduced; therefore, self-adaptive adjustment of the pneumatic waist support is carried out, and the adjustment mode better conforms to ergonomics.

Description

Technical Field

[0001] The embodiments of the present utility model relate to the technical field of lumbar supports, and in particular, to a pneumatic lumbar support and an intelligent device. Background Art

[0002] A pneumatic lumbar support is a support device controlled by air pressure and is used to provide support for the human waist and is widely applied to seats. When a person sits on a seat, whether the human waist is in a proper position directly affects the comfort of sitting. To increase the comfort of sitting, a pneumatic lumbar support is usually equipped to support the human waist. When the position of the human waist changes due to adjusting the sitting posture during the sitting process, it is necessary to readjust the undulating height of the pneumatic lumbar support. When the sitting posture of the human body changes repeatedly, it is necessary to repeatedly adjust the undulating height of the pneumatic lumbar support, which undoubtedly causes cumbersome operations.

[0003] Currently, in order to enable the pneumatic lumbar support to adaptively adjust the undulating height following the change of the human sitting posture, most pneumatic lumbar supports detect the pressure exerted by the human waist on the pneumatic lumbar support by arranging a pressure sensor on its surface, and then adjust the undulating height of the pneumatic lumbar support in real time according to the detected pressure. However, for the method of arranging a pressure sensor on the surface of the pneumatic lumbar support to detect the pressure exerted by the human waist on the pneumatic lumbar support, the pressure sensor cannot adapt to the waist curve of the human body, resulting in a large deviation when the pressure sensor detects the pressure exerted by the human waist on the pneumatic lumbar support, and the accuracy of the pressure sensor detecting the pressure exerted by the human waist on the pneumatic lumbar support is insufficient. Summary of the Utility Model

[0004] The main technical problem to be solved by the embodiments of the present utility model is to provide a pneumatic lumbar support and an intelligent device, which can better adapt to the waist curve of the human body and reduce the deviation of detecting the pressure exerted by the human waist on the pneumatic lumbar support.

[0005] To solve the above technical problem, one technical solution adopted by the embodiments of the present utility model is: to provide a pneumatic lumbar support, including a controller, a gas source, a control valve group, a support airbag group, and a detection component. The gas source is connected to the control valve group through a corresponding pipeline. The detection component is arranged in at least two detection areas on the support surface of the support airbag group for detecting the pressure exerted by the human back or waist towards the support airbag group. The control valve group is connected to the support airbag group through a corresponding pipeline. The controller is independently connected to the control valve group and the detection component respectively.

[0006] Optionally, the detection assembly includes at least two detection airbags and at least two pressure sensors. The support airbag group includes at least three support airbags arranged in sequence along a first direction. The control valve group is respectively connected to the at least three support airbags through corresponding pipelines. One detection airbag covers at least part of any two adjacent support airbags along the first direction. The detection airbag is in one-to-one communication with the pressure sensor through a corresponding pipeline. The controller is independently connected to the pressure sensor.

[0007] Optionally, the detection assembly includes a first detection airbag, a second detection airbag, a first pressure sensor, and a second pressure sensor. The support airbag group includes a first support airbag, a second support airbag, and a third support airbag arranged in sequence along the first direction. The control valve group is respectively connected to the first support airbag, the second support airbag, and the third support airbag through corresponding pipelines. The first detection airbag covers part of the first support airbag and part of the second support airbag along the first direction. The second detection airbag covers part of the second support airbag and part of the third support airbag along the first direction. The first detection airbag is connected to the first pressure sensor through a corresponding pipeline. The second detection airbag is connected to the second pressure sensor through a corresponding pipeline.

[0008] Optionally, along the first direction, notches are provided on opposite sides of the support airbag. The notches of any two adjacent support airbags enclose a groove. One detection airbag is at least partially disposed in one groove.

[0009] Optionally, the detection assembly further includes at least one first pipeline and at least one switching valve. One end of a first pipeline is connected to a detection airbag, and the other end of the first pipeline is connected to the switching valve. A pressure sensor is disposed in the first pipeline. The controller is independently connected to the switching valve for control.

[0010] Optionally, the detection airbag includes a bag body and an elastic filler. The bag body covers part of the support airbag. The elastic filler is disposed inside the bag body. The bag body is used for filling gas.

[0011] Optionally, the elastic filler is a sandwich mesh fabric.

[0012] Optionally, the support airbag group further includes at least two second pipelines and at least two air pressure sensors. One end of a second pipeline is connected to a support airbag, and the other end of the second pipeline is connected to the control valve group. An air pressure sensor is disposed in the second pipeline. The air pressure sensor is used for detecting the air pressure of the support airbag. The controller is independently connected to the air pressure sensor for control.

[0013] To solve the above technical problems, another technical solution adopted in the embodiments of the present utility model is: to provide an intelligent device including the above pneumatic lumbar support.

[0014] The beneficial effects of the embodiments of the present utility model are as follows: Different from the prior art, the detection component in the present utility model can contact the human waist and adapt to the waist curve of the human body, so that when indirectly detecting the pressure change of the human waist applied to the pneumatic lumbar support by detecting the pressure change of the detection component, the deviation of detecting the pressure of the human waist applied to the pneumatic lumbar support can be reduced, and then the adaptive adjustment of the pneumatic lumbar support can be carried out, and the adjustment method is more ergonomic. Description of the Drawings

[0015] To more clearly illustrate the technical solutions in the specific embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0016] Figure 1 is a schematic structural diagram of the pneumatic lumbar support provided by the embodiments of the present utility model Figure 1 ;

[0017] Figure 2 is a schematic structural diagram of the pneumatic lumbar support provided by the embodiments of the present utility model Figure 2 ;

[0018] Figure 3 is a schematic structural diagram of the pneumatic lumbar support provided by the embodiments of the present utility model Figure 3 ;

[0019] Figure 4 is a schematic structural diagram of the intelligent device provided by the embodiments of the present utility model;

[0020] Figure 5 is a reference diagram for the use of the intelligent device provided by the embodiments of the present utility model.

[0021] Description of the Reference Numerals in the Drawings:

[0022] 1 Support airbag group, 11 Support airbag, 111 First support airbag, 112 Second support airbag, 113 Third support airbag, 114 Notch, 115 Groove, 12 Second pipeline, 13 Pressure sensor;

[0023] 2 Detection component, 21 Detection airbag, 211 First detection airbag, 212 Second detection airbag, 213 Bag body, 214 Elastic filler, 22 Pressure sensor, 221 First pressure sensor, 222 Second pressure sensor, 23 First pipeline, 24 Switch valve;

[0024] 3 Control valve group;

[0025] 4 Air source;

[0026] X First direction, Y Second direction. Detailed implementation manners

[0027] For the convenience of understanding the present utility model, the present utility model will be described in more detail below with reference to the accompanying drawings and specific embodiments. It should be noted that when an element is expressed as "fixed to" another element, it can be directly on the other element, or there can be one or more intermediate elements therebetween. When an element is expressed as "connected to" another element, it can be directly connected to the other element, or there can be one or more intermediate elements therebetween. The orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "vertical", "horizontal", etc. used in this specification is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model 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 thus cannot be construed as a limitation to the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0028] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by those skilled in the technical field to which the present utility model belongs. The terms used in this specification in the description of the present utility model are only for the purpose of describing specific embodiments and are not used to limit the present utility model. The term "and / or" used in this specification includes any and all combinations of one or more of the related listed items.

[0029] The pneumatic lumbar support is a support device controlled by air pressure and is used to provide a support function for the human waist and is widely applied to seats. When a person sits on a seat, whether the human waist is in a proper position directly affects the comfort of sitting. In order to increase the comfort of sitting, a pneumatic lumbar support is usually provided to support the human waist. When the position of the human waist is changed due to adjusting the sitting posture during the sitting process, it is necessary to readjust the undulating height of the pneumatic lumbar support, and when the sitting posture of the human body changes repeatedly, it is necessary to repeatedly adjust the undulating height of the pneumatic lumbar support, which undoubtedly causes cumbersome operation.

[0030] Currently, in order to enable a pneumatic lumbar support to adaptively adjust its undulating height according to the changes in the sitting posture of a human body, most pneumatic lumbar supports detect the pressure exerted by the human waist on the pneumatic lumbar support by setting pressure sensors on its surface, and then adjust the undulating height of the pneumatic lumbar support in real time according to the detected pressure. However, for the method of setting pressure sensors on the surface of the pneumatic lumbar support to detect the pressure exerted by the human waist on the pneumatic lumbar support, the pressure sensors cannot adapt to the waist curve of the human body, resulting in large deviations when the pressure sensors detect the pressure exerted by the human waist on the pneumatic lumbar support, and causing insufficient accuracy in detecting the pressure exerted by the human waist on the pneumatic lumbar support by the pressure sensors.

[0031] In view of this, please refer to Figures 1 to 3 , the present utility model provides a pneumatic lumbar support, which includes a controller (not shown in the figure), a gas source 4, a control valve group 3, a support airbag group 1 and a detection component 2. The gas source 4 is connected to the control valve group 3 through corresponding pipelines. The detection component 2 is arranged in at least two detection areas on the support surface of the support airbag group 1 for detecting the pressure exerted by the human back or waist towards the support airbag group 1. The control valve group 3 is connected to the support airbag group 1 through corresponding pipelines. The controller (not shown in the figure) is independently connected to the control valve group 3 and the detection component 2 respectively.

[0032] In the above manner, the detection component 2 in the present utility model can contact the human waist and adapt to the waist curve of the human body, so that when indirectly detecting the pressure change of the human waist exerted on the pneumatic lumbar support by detecting the pressure change of the detection component 2, the deviation of the pressure exerted by the human waist on the pneumatic lumbar support can be reduced, and then the adaptive adjustment of the pneumatic lumbar support can be carried out, and the adjustment method is more ergonomic.

[0033] For the above pneumatic lumbar support, please refer to Figures 1 to 3 , the detection component 2 includes at least two detection airbags 21 and at least two pressure sensors 22. The support airbag group 1 includes at least three support airbags 11 arranged in sequence along a first direction. The control valve group 3 is connected to the at least three support airbags 11 through corresponding pipelines respectively. One detection airbag 21 covers a part of any two support airbags 11 simultaneously along the first direction X. The detection airbag 21 is in one-to-one correspondence and communication with the pressure sensor 22 through corresponding pipelines. The controller (not shown in the figure) is independently connected to the pressure sensor 22. The support airbag 11 mainly deforms along a second direction Y, and the second direction Y is perpendicular to the first direction X.

[0034] In the above manner, the detection airbag 21 can contact the human waist and adapt to the waist curve of the human body, so as to reduce the deviation of detecting the pressure applied by the human waist on the pneumatic lumbar support when indirectly detecting the pressure change of the detection airbag 21, and improve the accuracy of detecting the pressure applied by the human waist on the pneumatic lumbar support. In addition, the detection airbag 21 is preset with a pressure upper limit value and a pressure lower limit value. When the detection airbag 21 detects that the pressure is greater than the pressure upper limit value, it feeds back to the controller (not shown in the figure), so that the controller (not shown in the figure) controls the support airbag 11 to deflate through the control valve group 32. When the detection airbag 21 detects that the pressure is less than the pressure lower limit value, it feeds back to the controller (not shown in the figure), so that the controller (not shown in the figure) controls the support airbag 11 to inflate through the control valve group 32.

[0035] For the above pneumatic lumbar support, please refer to Figures 1 to 3 , in some embodiments, the detection assembly 21 includes a first detection airbag 211, a second detection airbag 212, a first pressure sensor 221 and a second pressure sensor 222. The support airbag group 1 includes a first support airbag 111, a second support airbag 112 and a third support airbag 113 arranged in sequence along the first direction X. The control valve group 3 is connected to the first support airbag 111, the second support airbag 112 and the third support airbag 113 through corresponding pipelines respectively. The first detection airbag 211 covers part of the first support airbag 111 and part of the second support airbag 112 along the first direction X at the same time. The second detection airbag 212 covers part of the second support airbag 112 and part of the third support airbag 113 along the first direction X at the same time. The first detection airbag 211 is connected to the first pressure sensor 221 through a corresponding pipeline. The second detection airbag 212 is connected to the second pressure sensor 222 through a corresponding pipeline.

[0036] Wherein, when the first detection airbag 211 detects that the pressure is less than the preset lower limit value, it feeds back to the controller (not shown in the figure), so that the controller (not shown in the figure) controls the first support airbag 111 to inflate through the control valve group 32. When the first detection airbag 211 detects that the pressure is greater than the preset upper limit value, it feeds back to the controller (not shown in the figure), so that the controller (not shown in the figure) controls the first support airbag 111 to deflate through the control valve group 32. When the second detection airbag 212 detects that the pressure is less than the preset lower limit value, it feeds back to the controller (not shown in the figure), so that the controller (not shown in the figure) controls the second support airbag 112 and the third support airbag 113 to inflate through the control valve group 32. When the second detection airbag 212 detects that the pressure is greater than the preset upper limit value, it feeds back to the controller (not shown in the figure), so that the controller (not shown in the figure) controls the second support airbag 112 and the third support airbag 113 to deflate through the control valve group 32.

[0037] For the above pneumatic lumbar support, please refer to Figures 1 to 3, along the first direction X, notches 114 are provided on opposite sides of the supporting airbag 11. The notches 114 of any two adjacent supporting airbags 11 enclose to form a groove 115, and the detection airbag 21 at least partially covers the corresponding groove 115.

[0038] In the above way, the detection airbag 21 is at least partially disposed in the groove 115, which can reduce the height of the detection airbag 21 protruding from the supporting airbag 11. This not only reduces the discomfort caused by the excessive protrusion of the detection airbag 21 from the supporting airbag 11, but also effectively utilizes the space of the pneumatic lumbar support, making the structure of the pneumatic lumbar support more compact.

[0039] For the above pneumatic lumbar support, please refer to Figures 1 to 3 , the detection assembly 2 further includes at least one first pipeline 23 and at least one switching valve 24. One end of a first pipeline 23 is connected to a detection airbag 21, the other end of the first pipeline 23 is connected to the switching valve 24, a pressure sensor 22 is disposed on the first pipeline 23, and a controller (not shown in the figure) is independently controlled and connected to the switching valve 24.

[0040] Compared with the direct connection of the pressure sensor 22 to the detection airbag 21, in the above way, the pressure sensor 22 is indirectly connected to the detection airbag 21 through the first pipeline 23. This can not only achieve the pressure detection of the detection airbag 21, but also separate the detection airbag 21 and the pressure sensor 22, which is helpful for the maintenance of the detection airbag 21 and the pressure sensor 22. That is, when the detection airbag 21 or the pressure sensor 22 is damaged, only the detection airbag 21 or the pressure sensor 22 needs to be independently maintained.

[0041] For the above pneumatic lumbar support, please refer to Figures 1 to 3 , the detection airbag 21 includes a bag body 213 and an elastic filler 214. The bag body 213 covers part of the supporting airbag 11, the elastic filler 214 is disposed inside the bag body 213, and the bag body 213 is used for filling gas.

[0042] In the above way, when the human waist applies pressure to the bag body 213, the elastic filler 214 can not only balance the pressure applied by the human waist on the bag body 213, avoid excessive or too small local pressure on the bag body 213, so that the pressure sensor 22 can collect more accurate pressure data, but also enable the bag body 213 to quickly respond to the change of the pressure applied by the human waist on the bag body 213 through good elastic performance, improve the detection sensitivity and response speed, so that the pressure sensor 22 can collect more accurate pressure data.

[0043] In addition, considering that when the human waist applies pressure to the bag body 213, the elastic filler 214 is compressed so that at least part of the gas inside the bag body 213 is squeezed out. Therefore, when the pressure applied by the human waist to the bag body 213 is withdrawn, the rebound of the elastic filler 214 and the reduction of the gas inside the bag body 213 make the inside of the bag body 213 in a negative pressure state. By opening the switch valve 24, external gas can be automatically sucked into the bag body 213 to restore the pressure balance of the bag body 213.

[0044] For the above-mentioned bag body 213, in some embodiments, the bag body 213 is circularly arranged. In this way, due to the symmetry of the circle, the pressure will not be concentrated in a specific area of the bag body 213, thereby reducing the excessive local pressure of the bag body 213. Therefore, the pressure applied to the bag body 213 can be distributed more evenly. It can be understood that in some other embodiments, the bag body 213 includes but is not limited to being circular. For example, the bag body 213 is square, rectangular, oval or other irregular shapes, etc.

[0045] For the above-mentioned elastic filler 214, in some embodiments, the elastic filler 214 is a sandwich mesh fabric. It can be understood that in some other embodiments, the elastic filler 214 includes but is not limited to being a sandwich mesh fabric. For example, the elastic filler 214 is sponge, cotton, silica gel, elastic fiber or composite fiber, etc.

[0046] For the above pneumatic lumbar support, please refer to Figures 1 to 3 , the support air bag group 1 further includes at least two second pipelines 12 and at least two air pressure sensors 13. One end of a second pipeline 12 is connected to a support air bag 11, the other end of the second pipeline 12 is connected to the control valve group 32, and an air pressure sensor 13 is arranged on a second pipeline 12. The air pressure sensor 13 is used to detect the air pressure of the support air bag 11. The controller (not shown in the figure) is independently controlled and connected to the air pressure sensor 13. Among them, the air pressure sensor 13 is used to detect the air pressure of the support air bag 11 to prevent overcharging of the support air bag 11.

[0047] Compared with the air pressure sensor 13 directly connected to the support air bag 11, in the above way, the air pressure sensor 13 is indirectly connected to the support air bag 11 through the second pipeline 12. It can not only realize the detection of the air pressure of the support air bag 11, but also separate the support air bag 11 and the air pressure sensor 13, which is helpful for the maintenance of the support air bag 11 and the air pressure sensor 13. That is, when the support air bag 11 or the air pressure sensor 13 is damaged, only the support air bag 11 or the air pressure sensor 13 needs to be independently maintained.

[0048] Regarding the above pressure sensor 22 and air pressure sensor 13, it should be noted that the pressure sensor 22 and the air pressure sensor 13 can be the same kind of sensor for measuring the air pressure in the gas path, or different sensors for measuring the air pressure in the gas path.

[0049] An embodiment of the present utility model provides a pneumatic lumbar support, which includes a controller (not shown in the figure), a gas source 4, a control valve group 3, a support airbag group 1, and a detection component 2. The gas source 4 is connected to the control valve group 3 through a corresponding pipeline. The detection component 2 is arranged in at least two detection areas on the support surface of the support airbag group 1 for detecting the pressure exerted by the human back or waist towards the support airbag group 1. The control valve group 3 is connected to the support airbag group 1 through a corresponding pipeline. The controller (not shown in the figure) is independently connected to the control valve group 1 and the detection component 2 respectively. The detection component 2 in the present utility model can contact the human waist and adapt to the waist curve of the human body, so as to reduce the deviation of detecting the pressure exerted by the human waist on the pneumatic lumbar support when indirectly detecting the pressure change of the pneumatic lumbar support by detecting the pressure change of the detection component 2, and then perform adaptive adjustment of the pneumatic lumbar support, and the adjustment method is more in line with the human body.

[0050] Please refer to Figure 4 and Figure 5 , the present utility model also provides an embodiment of an intelligent device. The intelligent device includes the above-mentioned pneumatic lumbar support. For the specific structure and function of the above-mentioned pneumatic lumbar support, please refer to the above-mentioned embodiment, and details will not be repeated here. It can be understood that the above-mentioned intelligent device includes but is not limited to automotive seats, office chairs, massage chairs, wheelchairs, lumbar protectors, mattresses, back cushions, backpacks, etc.

[0051] The above are only the embodiments of the present utility model, and do not limit the patent scope of the present utility model accordingly. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present utility model, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present utility model.

Claims

1. A pneumatic lumbar support, characterized in that, Comprising: Comprising a controller, a gas source, a control valve group, a support airbag group and a detection component. The gas source is connected to the control valve group through corresponding pipelines. The detection component is arranged in at least two detection areas on the support surface of the support airbag group for detecting the pressure exerted by the human back or waist towards the support airbag group. The control valve group is connected to the support airbag group through corresponding pipelines. The controller is independently connected to the control valve group and the detection component respectively.

2. The pneumatic lumbar support according to claim 1, wherein: The detection component includes at least two detection airbags and at least two pressure sensors. The support airbag group includes at least three support airbags arranged in sequence along a first direction. The control valve group is connected to the at least three support airbags through corresponding pipelines. One detection airbag covers at least part of any two adjacent support airbags along the first direction. The detection airbag is in one-to-one correspondence and communication with the pressure sensor through a corresponding pipeline. The controller is independently connected to the pressure sensor.

3. The pneumatic lumbar support according to claim 2, wherein: The detection component includes a first detection airbag, a second detection airbag, a first pressure sensor and a second pressure sensor. The support airbag group includes a first support airbag, a second support airbag and a third support airbag arranged in sequence along the first direction. The control valve group is connected to the first support airbag, the second support airbag and the third support airbag through corresponding pipelines respectively. The first detection airbag covers at least part of the first support airbag and at least part of the second support airbag along the first direction. The second detection airbag covers at least part of the second support airbag and at least part of the third support airbag along the first direction. The first detection airbag is connected to the first pressure sensor through a corresponding pipeline. The second detection airbag is connected to the second pressure sensor through a corresponding pipeline.

4. The pneumatic lumbar support according to claim 2, wherein: Along the first direction, notches are provided on opposite sides of the support airbag. The notches of any two adjacent support airbags enclose a groove. The detection airbag covers at least part of the corresponding groove.

5. The pneumatic lumbar support according to claim 2, wherein: The detection component further includes at least one first pipeline and at least one switch valve. One end of a first pipeline is connected to a detection airbag, and the other end of the first pipeline is connected to a switch valve. A pressure sensor is arranged in the first pipeline. The controller is independently connected and controlled to the switch valve.

6. The pneumatic lumbar support according to any one of claims 2-5, wherein: The detection airbag includes a bag body and an elastic filler. The bag body covers part of the support airbag. The elastic filler is arranged inside the bag body. The bag body is used for filling gas.

7. The pneumatic lumbar support according to claim 6, wherein: The elastic filler is a sandwich mesh fabric.

8. The pneumatic lumbar support according to any one of claims 2-5, characterized in that the support airbag group further includes at least two second pipelines and at least two air pressure sensors. One end of a second pipeline is connected to one of the support airbags, the other end of the second pipeline is connected to the control valve group, and an air pressure sensor is arranged in one of the second pipelines. The air pressure sensor is used to detect the air pressure of the support airbag, and the controller is independently and controllably connected to the air pressure sensor.

9. An intelligent device, characterized in that, including the pneumatic lumbar support according to any one of claims 1-8.

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