Dental chair supporting device and dental chair

Abstract

The utility model discloses a dental chair supporting device and a dental chair, and relates to the field of medical instruments and equipment.The dental chair supporting device comprises a back cushion, the back cushion comprises a first cover body, a first support assembly and a first supporting plate, and the first cover body covers the outer side of the first support assembly and the outer side of the first supporting plate; the first supporting plate is rotationally connected with the first support assembly, and the rotating angle of the first supporting plate is adjustable. The headrest comprises a second cover body, a second support assembly and a second supporting plate, the second cover body covers the outer sides of the second support assembly and the second supporting plate, the second supporting plate is rotationally connected with the second support assembly, and the rotating angle of the second supporting plate is adjustable; the back cushion and the headrest are both suitable for being installed on the dental chair body. Therefore, the rotating angles of the first supporting plate and the second supporting plate are adjustable, the supporting positions of the back cushion and the headrest can be adjusted in a personalized mode according to the body type of a patient and treatment requirements, the adaptability of the back cushion and the headrest is good, the comfort of the patient can be remarkably improved, the situation that the posture of the patient is frequently adjusted due to discomfort in the treatment process is reduced, and the treatment effect is improved. And the treatment effect and the operation convenience of medical staff can be improved.

Description

Technical Field

[0001] This utility model relates to the field of medical devices, and in particular to a dental chair support device and a dental chair. Background Technology

[0002] Among related technologies, the lateral support function of dental chairs is relatively simple, which cannot provide sufficient comfort and adaptability. It cannot be personalized according to the patient's body shape and treatment needs, which not only affects the patient's comfort, but may also cause the patient to frequently adjust their posture due to discomfort during treatment, thereby affecting the treatment effect and the doctor's ease of operation. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, one objective of the present invention is to provide a dental chair support device that is highly comfortable and adaptable, significantly reduces patient discomfort, and improves treatment effectiveness and ease of operation for doctors.

[0004] This utility model further proposes a dental chair.

[0005] The dental chair support device according to this utility model includes: a backrest, the backrest comprising: a first cover, a first support assembly, and a first support plate, the first cover covering the outside of the first support assembly and the first support plate, the first support plate being rotatably connected to the first support assembly and the rotation angle of the first support plate being adjustable; and a headrest, the headrest comprising: a second cover, a second support assembly, and a second support plate, the second cover covering the outside of the second support assembly and the second support plate, the second support plate being rotatably connected to the second support assembly and the rotation angle of the second support plate being adjustable; both the backrest and the headrest are suitable for installation on the dental chair body.

[0006] According to the dental chair support device of this utility model, by making the rotation angle of the first support plate and the second support plate adjustable, the support position of the backrest and headrest can be adjusted according to the patient's body shape and treatment needs, so that the backrest and headrest are more adaptable, which can significantly improve the patient's comfort, reduce the situation where the patient frequently adjusts his posture due to discomfort during the treatment, and help improve the treatment effect and the convenience of operation for medical staff.

[0007] In some examples of this utility model, the pillow further includes: a first airbag and a first air pump, wherein the first airbag is connected to the first air pump and disposed between the first bracket assembly and the first support plate, and the first airbag is configured to adjust the rotation angle of the first support plate.

[0008] In some examples of this utility model, the first support assembly includes: a first base plate and a first support plate, the first support plate being connected to the first base plate, the first support plate being rotatably connected to the first base plate, the first base plate, the first support plate, and the first support plate together defining a first receiving space, and at least a portion of the first airbag being disposed in the first receiving space.

[0009] In some examples of this utility model, the pillow further includes a first multi-way valve, which is connected between the first airbag and the first air pump.

[0010] In some examples of this utility model, the second cover has a side support portion and a front support portion, wherein the height of the side support portion is greater than the height of the front support portion.

[0011] In some examples of this utility model, the headrest further includes: a second airbag and a second air pump, the second airbag being connected to the second air pump and disposed between the second bracket assembly and the second support plate, the second airbag being configured to adjust the rotation angle of the second support plate to adjust the height of the side support portion.

[0012] In some examples of this utility model, the second support assembly includes: a second base plate and a second support plate, the second support plate being connected to the second base plate, the second support plate being rotatably connected to the second base plate, the second base plate, the second support plate, and the second support plate together defining a second receiving space, and at least a portion of the second airbag being disposed in the second receiving space.

[0013] In some examples of this utility model, the headrest further includes: a guide post and a third airbag; the second support assembly further includes: a third base plate, the third base plate being disposed on the side of the second base plate away from the second support plate; the guide post being disposed on the third base plate and passing through the second base plate; the second base plate being movable along the axial direction of the guide post; the third airbag being connected to the second air pump and disposed between the third base plate and the second base plate; the third airbag being configured to adjust the distance between the second base plate and the third base plate to adjust the height of the positive support portion.

[0014] In some examples of this utility model, the dental chair support device further includes: a multi-way valve group, which is connected between the second air pump and the second airbag and the third airbag, and the multi-way valve group includes at least one second multi-way valve.

[0015] The dental chair according to this utility model includes the aforementioned dental chair support device and dental chair body. The backrest further includes: two first straps, one end of each of the two first straps being connected to the first cover, and the other end of each of the two first straps being detachably coupled; the headrest further includes: two second straps, one end of each of the two second straps being connected to the second cover, and the other end of each of the two second straps being detachably coupled.

[0016] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0018] Figure 1 This is a structural schematic diagram of the dental chair support device and dental chair according to an embodiment of the present invention;

[0019] Figure 2 This is a structural schematic diagram of the pillow according to an embodiment of the present utility model;

[0020] Figure 3 This is a cross-sectional view of the pillow according to an embodiment of the present utility model;

[0021] Figure 4 This is a cross-sectional view of the pillow according to an embodiment of the present utility model from another angle;

[0022] Figure 5 This is a schematic diagram of the headrest structure according to an embodiment of the present utility model;

[0023] Figure 6 This is a cross-sectional view of the headrest according to an embodiment of the present utility model;

[0024] Figure 7 This is a cross-sectional view of the headrest according to an embodiment of the present utility model from another angle;

[0025] Figure 8 This is a diagram illustrating the connection between the first air pump and the first airbag according to an embodiment of the present invention.

[0026] Figure 9 This is a diagram showing the architecture of the second air pump connected to the second airbag and the third airbag according to an embodiment of the present invention.

[0027] Figure label:

[0028] Dental chair support device 100; dental chair body 99; dental chair 98; patient 97;

[0029] 10. Backrest pillow; 11. First cover; 12. First support assembly; 121. First support plate; 122. Third support plate; 123. Fourth support plate; 124. First support plate; 13. First receiving space; 14. First air pump; 15. First airbag; 16. First multi-way valve; 17. First vent; 171. First strap; 18.

[0030] Headrest 20; Second cover 21; Side support 211; Front support 212; Second bracket assembly 22; Second base plate 221; Second support plate 222; Third base plate 224; Second support plate 23; Second receiving space 24; Second air pump 25; Second airbag 26; Third airbag 27; Second multi-way valve 28; Second vent 281; Third multi-way valve 29; First interface 291; Second interface 292; Third interface 293; Multi-way valve assembly 30; Second strap 31; Guide post 32; Guide hole 33. Detailed Implementation

[0031] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0032] The following is for reference. Figures 1-9 Describes a dental chair support device 100 according to an embodiment of the present invention.

[0033] like Figures 1-9 As shown, the dental chair support device 100 according to an embodiment of the present utility model includes: a backrest 10 and a headrest 20.

[0034] The backrest 10 includes: a first cover 11, a first support assembly 12, and a first support plate 13. The first cover 11 covers the outside of the first support assembly 12 and the first support plate 13. The first support plate 13 is rotatably connected to the first support assembly 12 and the rotation angle of the first support plate 13 is adjustable. The headrest 20 includes: a second cover 21, a second support assembly 22, and a second support plate 23. The second cover 21 covers the outside of the second support assembly 22 and the second support plate 23. The second support plate 23 is rotatably connected to the second support assembly 22 and the rotation angle of the second support plate 23 is adjustable. Both the backrest 10 and the headrest 20 are suitable for installation on the dental chair body 99.

[0035] The first cover 11 covers the outside of the first support assembly 12 and the first support plate 13. In other words, the first cover 11 can wrap the first support assembly 12 and the first support plate 13. As some embodiments of this application, the first cover 11 may contain a flexible material, which may be, but is not limited to, sponge, shaping cotton, etc. This can prevent the patient 97 from directly contacting the first support plate 13 and improve the patient 97's comfort.

[0036] The first support plate 13 is rotatably connected to the first bracket assembly 12. In some embodiments of this application, the first support plate 13 has a first pivot hole, and the first bracket assembly 12 has a first pivot shaft. The first pivot hole and the first pivot shaft cooperate to enable the first support plate 13 and the first bracket assembly 12 to be rotatably connected. In some embodiments of this application, the first support plate 13 and the first bracket assembly 12 are rotatably connected by a hinge.

[0037] The rotation angle of the first support plate 13 is adjustable. That is, the first support plate 13 is rotatably connected to the first bracket assembly 12, and the included angle between the first support plate 13 and the first bracket assembly 12 can be adjusted so that the first support plate 13 is in a suitable position angle.

[0038] The second cover 21 covers the outside of the second support assembly 22 and the second support plate 23. In other words, the second cover 21 can wrap the second support assembly 22 and the second support plate 23. As some embodiments of this application, the second cover 21 may contain a flexible material, which may be, but is not limited to, sponge, shaping cotton, etc. This can prevent the patient 97 from directly contacting the second support plate 23 and improve the patient 97's comfort.

[0039] The second support plate 23 is rotatably connected to the second bracket assembly 22. In some embodiments of this application, the second support plate 23 has a second pivot hole, and the second bracket assembly 22 has a second pivot shaft. The second pivot hole and the second pivot shaft cooperate to enable the second support plate 23 and the second bracket assembly 22 to be rotatably connected. In some embodiments of this application, the second support plate 23 and the second bracket assembly 22 are rotatably connected by a hinge.

[0040] The rotation angle of the second support plate 23 is adjustable. That is, the second support plate 23 is rotatably connected to the second bracket assembly 22, and the included angle between the second support plate 23 and the second bracket assembly 22 can be adjusted so that the second support plate 23 is in a suitable position angle.

[0041] Both the backrest 10 and the headrest 20 can be installed on the dental chair body 99. Furthermore, there can be multiple backrests 10. As some embodiments of this application, one headrest 20 and two backrests 10 are installed on the dental chair body 99. As some embodiments of this application, one headrest 20 and one backrest 10 are installed on the dental chair body 99.

[0042] It should be noted that by making the rotation angle of the first support plate 13 of the backrest 10 and the rotation angle of the second support plate 23 of the headrest 20 adjustable, the support angles of the headrest 20 and the backrest 10 can be flexibly adjusted. This allows the backrest 10 and the headrest 20 to be adjusted in a personalized manner according to the patient's body shape and treatment needs, without requiring the patient to actively adjust their posture. This provides the patient with long-term side-lying support, significantly reducing the patient's discomfort and minimizing the need for frequent posture adjustments due to discomfort during treatment, thus improving the comfort of the dental chair 98.

[0043] Therefore, by making the rotation angle of the first support plate 13 and the second support plate 23 adjustable, the support position of the backrest 10 and the headrest 20 can be adjusted in a personalized manner according to the body shape and treatment needs of the patient 97, so that the backrest 10 and the headrest 20 have better adaptability, which can significantly improve the comfort of the patient 97, reduce the frequent adjustment of posture by the patient 97 due to discomfort during the treatment process, and help improve the treatment effect and the convenience of operation for medical staff.

[0044] In some embodiments of this utility model, such as Figures 2-4 , Figure 8 As shown, the pillow 10 also includes a first airbag 16 and a first air pump 15. The first airbag 16 is connected to the first air pump 15 and is disposed between the first bracket assembly 12 and the first support plate 13. The first airbag 16 is configured to adjust the rotation angle of the first support plate 13.

[0045] In this embodiment, the first airbag 16 is connected to the first air pump 15. In some embodiments of this application, the first airbag 16 and the first air pump 15 are connected via a pipeline. The first airbag 16 is disposed between the first support assembly 12 and the first support plate 13. The first airbag 16 is configured to adjust the rotation angle of the second support plate 23. Specifically, the first air pump 15 can inflate the first airbag 16 to cause it to expand. Since the first airbag 16 is disposed between the first support assembly 12 and the first support plate 13, the expansion of the first airbag 16 can increase the angle between the first support assembly 12 and the first support plate 13. Furthermore, the first airbag 16 can deflate to cause it to shrink. Since the first airbag 16 is disposed between the first support assembly 12 and the first support plate 13, the shrinkage of the first airbag 16 can decrease the angle between the first support assembly 12 and the first support plate 13.

[0046] By connecting the first airbag 16 to the first air pump 15 and placing it between the first support assembly 12 and the first support plate 13, the angle between the first support assembly 12 and the first support plate 13 can be easily adjusted without manual adjustment. The support angle of the pillow 10 can be adjusted simply by controlling the first air pump 15. Furthermore, this arrangement can better adapt to the body shape and side-lying posture needs of different patients 97, which is conducive to improving the comfort of patients 97.

[0047] In some embodiments of this utility model, such as Figures 2-4 As shown, the first support assembly 12 includes a first base plate 121 and a first support plate 122. The first support plate 122 is connected to the first base plate 121, and the first support plate 13 is rotatably connected to the first base plate 121. The first base plate 121, the first support plate 122, and the first support plate 13 together define a first receiving space 14. At least a portion of the first airbag 16 is disposed in the first receiving space 14.

[0048] The first support plate 122 is connected to the first base plate 121. The connection between the first support plate 122 and the first base plate 121 can be, but is not limited to, welding, snap-fitting, etc. As some embodiments of this application, the first support plate 122 and the first base plate 121 are connected by welding.

[0049] The first support plate 13 is rotatably connected to the first base plate 121. In some embodiments of this application, the first support plate 13 has a first pivot hole, and the first base plate 121 of the first bracket assembly 12 has a first pivot shaft. The first pivot hole and the first pivot shaft cooperate to enable the first support plate 13 and the first base plate 121 to be rotatably connected. In some embodiments of this application, the first support plate 13 and the first base plate 121 are rotatably connected by a hinge.

[0050] The first base plate 121, the first support plate 122, and the first support plate 13 together define the first receiving space 14. At least a portion of the first airbag 16 is disposed in the first receiving space 14. As some embodiments of this application, a portion of the first airbag 16 is disposed in the first receiving space 14. As some embodiments of this application, the entire first airbag 16 is disposed in the first receiving space 14.

[0051] This configuration allows the first support assembly 12 to have a reasonable structure, provides an installation position for the first airbag 16, reduces the risk of displacement of the first airbag 16 during contraction and expansion, and helps to improve the reliability of the pillow 10.

[0052] As some embodiments of this application, the first support assembly 12 further includes a third support plate 123 and a fourth support plate 124. The third support plate 123 is connected to the first base plate 121 and is disposed on the side of the first support plate 122 near the first support plate 13. The fourth support plate 124 is connected between the first support plate 122 and the third support plate 123. The height of the third support plate 123 is lower than the height of the first support plate 122. The first support plate 13 is rotatably connected to the first base plate 121. The first support plate 122, the third support plate 123, the fourth support plate 124, and the first support plate 13 together define a first sub-storage space. At least a portion of the first airbag 16 is disposed in the first sub-storage space. It is understood that the first sub-storage space is located in the first receiving space 14. This arrangement can provide a more precise installation position for the first airbag 16 and can further reduce the risk of displacement during the contraction and expansion of the first airbag 16. In addition, this arrangement can reduce the volume of the first airbag 16, which is beneficial to reducing costs.

[0053] In some embodiments of this utility model, such as Figure 8 As shown, the dental chair support device 100 also includes a first multi-way valve 17, which is connected between the first airbag 16 and the first air pump 15.

[0054] As some embodiments of this application, the first multi-way valve 17 is configured as a shut-off valve. When it is necessary to increase the angle between the first support plate 13 and the first base plate 121, the first multi-way valve 17 can be opened, and the first air pump 15 can inflate the first airbag 16 to increase the angle between the first support plate 13 and the first base plate 121 (pushing the first support plate 13 outward). Then, the first air pump 15 can be closed, and the first multi-way valve 17 can be closed, so that the first airbag 16 is maintained at the required inflation level, so that the angle between the first support plate 13 and the first base plate 121 is increased. When the angle between plates 121 remains unchanged, and it is necessary to reduce the angle of the first support plate 13, the first multi-way valve 17 can be turned on, and the first air pump 15 can draw air from the first airbag 16 to cause the first airbag 16 to deflate. The deflation of the first airbag 16 can reduce the angle between the first support plate 13 and the first base plate 121 (the first support plate 13 is not supported by the first airbag 16). Then the first air pump 15 can be turned off, and the first multi-way valve 17 can be turned off to keep the first airbag 16 at the required inflation size so that the angle between the first support plate 13 and the first base plate 121 remains unchanged.

[0055] As some embodiments of this application, the first multi-way valve 17 is configured as a two-position two-way solenoid valve, and has a one-way conduction function and a first vent 171. When it is necessary to increase the angle between the first support plate 13 and the first base plate 121, the first multi-way valve 17 can be opened, and the first air pump 15 can inflate the first airbag 16 to make the first airbag 16 expand. The expansion of the first airbag 16 can increase the angle between the first support plate 13 and the first base plate 121 (pushing the first support plate 13 outward). Since the first multi-way valve 17 has a one-way conduction function, gas will not flow from the first airbag 16 to the first air pump 15. Then the first air pump 15 can be closed to maintain the first airbag 16 at the required inflation size, so that the first support plate 13 can be inflated to the required level. The angle between the support plate 13 and the first base plate 121 remains unchanged. When it is necessary to reduce the angle between the first support plate 13 and the first base plate 121, the first vent 171 of the first multi-way valve 17 can be opened to allow the gas in the first airbag 16 to flow out from the first vent 171 of the first multi-way valve 17, so that the first airbag 16 shrinks. The shrinking of the first airbag 16 can reduce the angle between the first support plate 13 and the first base plate 121 (the first support plate 13 is not supported by the first airbag 16). Then, the first multi-way valve 17 can be controlled to close the first vent 171, so that the first airbag 16 is maintained at the required inflation size, so that the angle between the first support plate 13 and the first base plate 121 remains unchanged.

[0056] By connecting the first multi-way valve 17 between the first airbag 16 and the first air pump 15, it is easier to control the angle between the first support plate 13 and the first base plate 121, which helps to improve the operational convenience of medical staff.

[0057] In some embodiments of this utility model, such as Figures 5-7 As shown, the second cover 21 has a side support 211 and a front support 212, and the height of the side support 211 is greater than the height of the front support 212.

[0058] Understandably, the second cover 21 needs to cover the headrest 20. When the patient 97 lies on their side, their head needs support from directly below and from the side. By having the second cover 21 have a side support part 211 and a front support part 212, and the height of the side support part 211 is greater than the height of the front support part 212, the second cover 21 can provide support for the head in two directions, significantly reducing the patient 97's discomfort and reducing the frequency of the patient 97 adjusting their posture due to discomfort during treatment.

[0059] In some embodiments of this utility model, such as Figures 5-7 , Figure 9As shown, the headrest 20 also includes a second airbag 26 and a second air pump 25. The second airbag 26 is connected to the second air pump 25 and is disposed between the second bracket assembly 22 and the second support plate 23. The second airbag 26 is configured to adjust the rotation angle of the second support plate 23 to adjust the height of the side support portion 211.

[0060] In this embodiment, the second airbag 26 is connected to the second air pump 25. In some embodiments of this application, the second airbag 26 and the second air pump 25 are connected via a pipeline. The second airbag 26 is disposed between the second support assembly 22 and the second support plate 23. The second airbag 26 is configured to adjust the rotation angle of the second support plate 23. Specifically, the second air pump 25 can inflate the second airbag 26 to cause it to expand. Since the second airbag 26 is disposed between the second support assembly 22 and the second support plate 23, its expansion increases the angle between the two components. Furthermore, the second airbag 26 can deflate to cause it to shrink. Since the second airbag 26 is disposed between the second support assembly 22 and the second support plate 23, its shrinkage decreases the angle between the two components, thereby adjusting the height of the side support portion 211.

[0061] By connecting the second airbag 26 to the second air pump 25 and placing it between the second support assembly 22 and the second support plate 23, the height between the second support assembly 22 and the second support plate 23 can be easily adjusted without manual adjustment. The height of the side support portion 211 of the headrest 20 can be adjusted simply by controlling the second air pump 25. Furthermore, this arrangement can better adapt to the body shape and lateral lying posture requirements of different patients 97, which is beneficial to improving the reliability of the dental chair support device 100.

[0062] In some embodiments of this utility model, such as Figures 5-7 As shown, the second support assembly 22 includes: a second base plate 221 and a second support plate 222, the second support plate 222 being connected to the second base plate 221, and a second support plate 23 being rotatably connected to the second base plate 221. The second base plate 221, the second support plate 222, and the second support plate 23 together define a second receiving space 24, and at least a portion of the second airbag 26 is disposed in the second receiving space 24.

[0063] The second base plate 221 and the second support plate 222 are connected. The connection method of the second base plate 221 and the second support plate 222 can be, but is not limited to, welding, snap-fitting, etc. As some embodiments of this application, the second base plate 221 and the second support plate 222 are connected by welding.

[0064] The second support plate 23 is rotatably connected to the second base plate 221. In some embodiments of this application, the second support plate 23 has a second pivot hole, and the second base plate 221 of the second bracket assembly 22 has a second pivot shaft. The second pivot hole and the second pivot shaft cooperate to enable the second support plate 23 and the second base plate 221 to be rotatably connected. In some embodiments of this application, the second support plate 23 and the second base plate 221 are rotatably connected by a hinge.

[0065] The second base plate 221, the second support plate 222, and the second support plate 23 together define the second receiving space 24. At least a portion of the second airbag 26 is disposed in the second receiving space 24. As some embodiments of this application, a portion of the second airbag 26 is disposed in the second receiving space 24. As some embodiments of this application, the entire second airbag 26 is disposed in the second receiving space 24.

[0066] This design allows the second support assembly 22 to have a reasonable structure, providing an installation position for the second airbag 26, reducing the risk of displacement of the second airbag 26 during contraction and expansion, and improving the reliability of the headrest 20.

[0067] In some embodiments of this utility model, such as Figures 5-7 As shown, the headrest 20 also includes a guide post 32 and a third airbag 27. The second support assembly 22 also includes a third base plate 224, which is located on the side of the second base plate 221 away from the second support plate 23. The guide post 32 is located on the third base plate 224 and passes through the second base plate 221. The second base plate 221 can move along the axial direction of the guide post 32. The third airbag 27 is connected to the second air pump 25 and is located between the third base plate 224 and the second base plate 221. The third airbag 27 is configured to adjust the distance between the second base plate 221 and the third base plate 224 to adjust the height of the positive support portion 212.

[0068] The third base plate 224 is located on the side of the second base plate 221 away from the second support plate 23; in other words, the third base plate 224 is located below the second base plate 221.

[0069] The third airbag 27 is connected to the second air pump 25. The guide post 32 is located on the third base plate 224 and passes through the second base plate 221. As some embodiments of this application, the second base plate 221 has a guide hole 33 that cooperates with the guide post 32. The guide post 32 can pass through the guide hole 33 so that the second base plate 221 can move along the axial direction of the guide post 32.

[0070] As some embodiments of this application, the third airbag 27 is connected to the second air pump 25 via a pipeline. The third airbag 27 is disposed between the third base plate 224 and the second base plate 221. The third airbag 27 is configured to adjust the distance between the second base plate 221 and the third base plate 224 to adjust the height of the positive support 212. Specifically, the second air pump 25 can inflate the third airbag 27 to make the third airbag 27 expand. Since the third airbag 27 is disposed between the third base plate 224 and the second base plate 221, the expansion of the third airbag 27 can increase the distance between the third base plate 224 and the second base plate 221 (the second base plate 221 moves away from the third base plate 224 along the axial direction of the guide post 32). Furthermore, the third airbag 27 can deflate to make the third airbag 27 collapse. Since the third airbag 27 is disposed between the third base plate 224 and the second base plate 221, the collapse of the third airbag 27 can decrease the distance between the third base plate 224 and the second base plate 221 (the second base plate 221 moves closer to the third base plate 224 along the axial direction of the guide post 32).

[0071] By connecting the third airbag 27 to the second air pump 25 and positioning it between the third base plate 224 and the second base plate 221, the distance between the second base plate 221 and the third base plate 224 can be easily adjusted to adjust the height of the positive support part 212. No manual adjustment is required; the height of the positive support part 212 of the headrest 20 can be adjusted simply by controlling the second air pump 25. Furthermore, this arrangement can better adapt to the body shape and lateral lying posture requirements of different patients 97, which is beneficial to improving the reliability of the dental chair support device 100.

[0072] In some embodiments of this utility model, such as Figure 9 As shown, the dental chair support device 100 also includes a multi-way valve assembly 30, which is connected between the second air pump 25 and the second airbag 26 and the third airbag 27. The multi-way valve assembly 30 includes at least one second multi-way valve 28.

[0073] In other words, the second air pump 25 is connected to the second airbag 26 via the multi-way valve assembly 30, and the second air pump 25 is also connected to the third airbag 27 via the multi-way valve assembly 30. The number of second multi-way valves 28 can be one or more.

[0074] As some embodiments of this application, the multi-way valve assembly 30 includes a second multi-way valve 28, which is configured as a three-way solenoid valve. The three ports of the three-way solenoid valve are respectively connected to the second air pump 25, the second airbag 26, and the third airbag 27. When it is necessary to adjust the height of the side support 211, in other words, when it is necessary to increase the angle between the second support plate 23 and the second base plate 221, the second multi-way valve 28 can be used to connect the second air pump 25 and the second airbag 26. The second air pump 25 can inflate the second airbag 26 to make the second airbag 26 expand. The expansion of the second airbag 26 can increase the angle between the second support plate 23 and the second base plate 221 (pushing the second support plate 23 outward). Then the second air pump 25 can be turned off, and the second multi-way valve 28 can be used to disconnect the second air pump 25 from the second airbag 26, so that the second airbag 26 is maintained at the required inflation size, so that the angle between the second support plate 23 and the second base plate 221 remains unchanged.

[0075] When it is necessary to reduce the angle between the second support plate 23 and the second base plate 221, the second multi-way valve 28 can be used to connect the second air pump 25 and the second airbag 26. The second air pump 25 can draw air from the second airbag 26 to cause the second airbag 26 to deflate. The deflation of the second airbag 26 can reduce the angle between the second support plate 23 and the second base plate 221 (the second support plate 23 is not supported by the second airbag 26). Then, the second multi-way valve 28 can be used to disconnect the second air pump 25 from the second airbag 26 to maintain the second airbag 26 at the required inflation size so that the angle between the first support plate 13 and the first base plate 121 remains unchanged.

[0076] When it is necessary to adjust the height of the support 212, in other words, when it is necessary to increase the distance between the second base plate 221 and the third base plate 224, the second multi-way valve 28 can be used to connect the second air pump 25 and the third airbag 27. The second air pump 25 can inflate the third airbag 27 to increase the distance between the second base plate 221 and the third base plate 224. Then the second air pump 25 can be turned off, and the second multi-way valve 28 can be used to disconnect the second air pump 25 from the third airbag 27, so that the third airbag 27 is maintained at the required inflation level, so that the distance between the second base plate 221 and the third base plate 224 remains unchanged.

[0077] When it is necessary to reduce the distance between the second base plate 221 and the third base plate 224, the second multi-way valve 28 can be used to connect the second air pump 25 and the third airbag 27. The second air pump 25 can draw air from the third airbag 27 to cause the third airbag 27 to deflate. The deflation of the third airbag 27 can reduce the distance between the second base plate 221 and the third base plate 224. Then, the second multi-way valve 28 can be used to disconnect the second air pump 25 from the third airbag 27 to maintain the third airbag 27 at the required inflation size so that the angle between the second base plate 221 and the third base plate 224 remains unchanged.

[0078] As some embodiments of this application, the multi-way valve assembly 30 includes two second multi-way valves 28 and one third multi-way valve 29. The third multi-way valve 29 is configured as a two-position three-way solenoid valve. The second multi-way valve 28 is configured as a two-position two-way solenoid valve and has a one-way conduction function and a second vent 281. The third multi-way valve 29 has a first interface 291, a second interface 292 and a third interface 293. The first interface 291 is connected to the second air pump 25, the second interface 292 is connected to one of the second multi-way valves 28, and the third interface 293 is connected to the other second multi-way valve 28. One of the second multi-way valves 28 is connected to the second airbag 26, and the other second multi-way valve 28 is connected to the third airbag 27.

[0079] When it is necessary to increase the angle between the second support plate 23 and the second base plate 221, the first interface 291, the second interface 292 and the second multi-way valve 28 connected to the second airbag 26 can be opened, and the second air pump 25 can inflate the second airbag 26 to make the second airbag 26 expand. The expansion of the second airbag 26 can increase the angle between the second support plate 23 and the second base plate 221 (pushing the second support plate 23 outward). Then the second air pump 25 can be turned off to disconnect the second air pump 25 from the second airbag 26, so that the second airbag 26 is maintained at the required inflation size, so that the angle between the second support plate 23 and the second base plate 221 remains unchanged.

[0080] When it is necessary to reduce the angle between the second support plate 23 and the second base plate 221, the second vent 281 of the second multi-way valve 28 connected to the second airbag 26 can be opened to release air, so that the second airbag 26 can shrink. The shrinkage of the second airbag 26 can reduce the angle between the second support plate 23 and the second base plate 221. Then the second vent 281 can be closed to keep the second airbag 26 at the required inflation size so that the angle between the second support plate 23 and the second base plate 221 remains unchanged.

[0081] When it is necessary to adjust the height of the support 212, in other words, when it is necessary to increase the distance between the second base plate 221 and the third base plate 224, the first interface 291, the third interface 293 and the second multi-way valve 28 connected to the third airbag 27 can be opened, and the second air pump 25 can inflate the third airbag 27 to make the third airbag 27 expand. The expansion of the third airbag 27 can increase the distance between the second base plate 221 and the third base plate 224. Then the second air pump 25 can be turned off to disconnect the second air pump 25 from the third airbag 27, so that the third airbag 27 is maintained at the required inflation size, so that the distance between the second base plate 221 and the third base plate 224 remains unchanged.

[0082] When it is necessary to reduce the distance between the second base plate 221 and the third base plate 224, the second vent 281 of the second multi-way valve 28 connected to the third airbag 27 can be opened to release air, so that the third airbag 27 deflates. The deflation of the third airbag 27 can reduce the distance between the second base plate 221 and the third base plate 224. Then the second vent 281 can be closed to keep the third airbag 27 at the required inflation size so that the distance between the second base plate 221 and the third base plate 224 remains unchanged.

[0083] This configuration facilitates the control of the connection and disconnection between the second airbag 26 and the second air pump 25, and between the third airbag 27 and the second air pump 25, thereby facilitating the adjustment of the height of the positive support part 212 and the side support part 211 of the headrest 20. This can significantly reduce the discomfort of the patient 97 and reduce the frequency of the patient 97 adjusting their posture due to discomfort during treatment, which is beneficial to improving the ease of operation for medical staff.

[0084] In some embodiments of this utility model, such as Figures 2-7 As shown, the pillow 10 also includes: two first straps 18, one end of each of the two first straps 18 is connected to the first cover 11, and the other end of each of the two first straps 18 is detachable; the headrest 20 also includes: two second straps 31, one end of each of the two second straps 31 is connected to the second cover 21, and the other end of each of the two second straps 31 is detachable.

[0085] The first strap 18 and the second strap 31 can be constructed as, but are not limited to, elastic bands, rubber bands, etc., so that the first strap 18 and the second strap 31 can be stretched.

[0086] As some embodiments of this application, one end of each of the two first straps 18 is sewn to the first cover 11, and the other end of each of the two first straps 18 is detachably connected by Velcro.

[0087] As some embodiments of this application, one end of each of the two first straps 18 is sewn to the first cover 11, and the other end of each of the two first straps 18 is detachably engaged by male and female buckles.

[0088] As some embodiments of this application, one end of each of the two second straps 31 is sewn to the second cover 21, and the other end of each of the two second straps 31 is detachably connected by Velcro.

[0089] As some embodiments of this application, one end of each of the two second straps 31 is sewn to the second cover 21, and the other end of each of the two second straps 31 is detachably engaged by male and female buckles.

[0090] This design facilitates the installation of the headrest 20 and backrest 10 onto the dental chair body 99, reduces the difficulty of installing the headrest 20 and backrest 10, and allows for flexible disassembly, which helps improve the reliability of the dental chair support device 100.

[0091] The dental chair 98 according to this utility model embodiment includes the dental chair support device 100 and the dental chair body 99 of the above embodiment. By making the rotation angle of the first support plate 13 and the second support plate 23 adjustable, the support position of the backrest 10 and the headrest 20 can be adjusted according to the body shape and treatment needs of the patient 97, so that the backrest 10 and the headrest 20 have better adaptability, which can significantly improve the comfort of the patient 97, reduce the situation where the patient 97 frequently adjusts his posture due to discomfort during the treatment, and help improve the treatment effect and the convenience of operation for medical staff.

[0092] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0093] In the description of this utility model, "first feature" and "second feature" may include one or more of the features.

[0094] In the description of this utility model, "multiple" means two or more.

[0095] In the description of this utility model, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or it may include the first and second features not being in direct contact but being in contact through another feature between them.

[0096] In the description of this utility model, the terms "above", "over" and "on top" for the first feature and the second feature include the first feature being directly above or diagonally above the second feature, or simply indicate that the first feature is at a higher horizontal level than the second feature.

[0097] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0098] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A dental chair support device, characterized in that, include: A backrest pillow, comprising: a first cover, a first support assembly, and a first support plate, wherein the first cover covers the outside of the first support assembly and the first support plate, and the first support plate is rotatably connected to the first support assembly and the rotation angle of the first support plate is adjustable; The headrest includes: a second cover, a second support assembly, and a second support plate. The second cover covers the outside of the second support assembly and the second support plate. The second support plate is rotatably connected to the second support assembly and the rotation angle of the second support plate is adjustable. Both the cushion and the headrest are suitable for installation on the dental chair body.

2. The dental chair support device according to claim 1, characterized in that, The pillow further includes a first airbag and a first air pump, wherein the first airbag is connected to the first air pump and disposed between the first bracket assembly and the first support plate, and the first airbag is configured to adjust the rotation angle of the first support plate.

3. The dental chair support device according to claim 2, characterized in that, The first support assembly includes a first base plate and a first support plate, the first support plate being connected to the first base plate, the first support plate being rotatably connected to the first base plate, the first base plate, the first support plate, and the first support plate together defining a first receiving space, and at least a portion of the first airbag being disposed in the first receiving space.

4. The dental chair support device according to claim 2, characterized in that, The pillow also includes a first multi-way valve, which is connected between the first airbag and the first air pump.

5. The dental chair support device according to claim 1, characterized in that, The second cover has a side support portion and a front support portion, wherein the height of the side support portion is greater than the height of the front support portion.

6. The dental chair support device according to claim 5, characterized in that, The headrest further includes a second airbag and a second air pump. The second airbag is connected to the second air pump and disposed between the second bracket assembly and the second support plate. The second airbag is configured to adjust the rotation angle of the second support plate to adjust the height of the side support portion.

7. The dental chair support device according to claim 6, characterized in that, The second support assembly includes: a second base plate and a second support plate, the second support plate being connected to the second base plate, the second support plate being rotatably connected to the second base plate, the second base plate, the second support plate, and the second support plate together defining a second receiving space, and at least a portion of the second airbag being disposed in the second receiving space.

8. The dental chair support device according to claim 7, characterized in that, The headrest further includes a guide post and a third airbag. The second support assembly further includes a third base plate, which is located on the side of the second base plate away from the second support plate. The guide post is located on the third base plate and passes through the second base plate. The second base plate is movable along the axial direction of the guide post. The third airbag is connected to the second air pump and is located between the third base plate and the second base plate. The third airbag is configured to adjust the distance between the second base plate and the third base plate to adjust the height of the positive support portion.

9. The dental chair support device according to claim 8, characterized in that, The headrest also includes a multi-way valve assembly connected between the second air pump and the second airbag and the third airbag, the multi-way valve assembly including at least one second multi-way valve.

10. A dental chair, characterized in that, The dental chair includes a dental chair support device and a dental chair body according to any one of claims 1-9. The headrest further includes: two first straps, one end of each of the two first straps being connected to the first cover, and the other end of each of the two first straps being detachably engaged; the headrest further includes: two second straps, one end of each of the two second straps being connected to the second cover, and the other end of each of the two second straps being detachably engaged.

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