A dental chair with an air-cushioned backrest

Abstract

This utility model relates to the field of dental treatment device technology, and provides a dental chair with an airbag backrest. The dental chair body includes a seat assembly, a backrest assembly, and a headrest assembly connected in sequence. The backrest assembly includes a backrest main body and an airbag section. The backrest main body is connected to both the seat assembly and the headrest assembly. The airbag section is mounted on the backrest main body and includes a lumbar airbag, a side back airbag, and a side waist airbag. Compared to existing technologies, the patch pressure sensor group detects the pressure on different parts of the patient's body when lying down. After receiving the signal from the patch pressure sensor group, the regulating valve changes its path, causing small airbags at different locations to ventilate and bulge. The bulging small airbags provide support for the patient's back, allowing for even pressure distribution. Simultaneously, a ventilation fan guides airflow through the airbag section, improving patient comfort.

Description

Technical Field

[0001] This utility model relates to the field of dental treatment instruments, and in particular to a dental chair with an airbag backrest. Background Technology

[0002] The dental chair is an essential component of dental treatment equipment. During treatment, patients lie down in the dental chair to facilitate the dentist's procedure. Since surgeries typically last from tens of minutes to several hours, patients need to lie stably in the dental chair for an extended period. However, conventional dental chair backrests can only improve patient comfort by conforming to the patient's back as closely as possible through their own curvature. Since different patients have varying body shapes, conventional backrests cannot fit all body types. Adjustments can be made using cushions or similar devices, but the adjustment effect of cushions is limited, and prolonged lying down can still cause discomfort. Therefore, there is a need for a self-adjusting chair back to alleviate the discomfort of prolonged lying down. Utility Model Content

[0003] The purpose of this invention is to provide a dental chair with an air-cushioned backrest, which aims to solve the problem that existing dental chairs are difficult to allow patients to lie comfortably for extended periods.

[0004] To achieve the above objectives, this utility model provides a dental chair with an airbag backrest, including a dental chair body. The dental chair body includes a seat assembly, a backrest assembly, and a headrest assembly connected in sequence. The backrest assembly includes a backrest body and an airbag portion installed on the backrest body. The backrest body is connected to the seat assembly and the headrest assembly respectively. The airbag portion is provided with a lumbar airbag, a side back airbag, and a side waist airbag. The lumbar airbag is located on the central axis of the airbag portion. The side back airbags are located on the left and right sides of the lumbar airbag near the headrest assembly. The side waist airbags are located on the left and right sides of the lumbar airbag near the backrest body. The airbag portion is also provided with a patch pressure sensor group.

[0005] The backrest assembly also includes an inflation device for inflating the lumbar airbag, the side back airbag (23) and the side waist airbag.

[0006] Furthermore, the seat assembly includes an adjustment frame, and the inflation device includes an adjustment valve, which is fixedly installed on the adjustment frame and is connected to the lumbar airbag, the side back airbag, and the side waist airbag respectively; the adjustment valve is connected to an external air source.

[0007] Furthermore, the backrest body is also equipped with a ventilation section, which includes an air guide and a ventilation fan. The air guide is installed in the backrest body, and the ventilation fan is installed in the air guide. The air guide is also equipped with filter cotton near the ventilation fan.

[0008] Furthermore, the lumbar airbag, the side back airbag, and the side waist airbag are all equipped with multiple sets of small airbags of different sizes, and each set of small airbags is connected to an adjustment valve.

[0009] Furthermore, the headrest assembly includes a connecting plate, a clamping plate, a knob, a cover, connecting posts, and a headrest body. The connecting plate is slidably connected to the backrest body. A set of connecting posts is fixedly installed on the connecting plate, and a set of connecting posts is fixedly installed on the headrest body. The clamping plate connects to two sets of connecting posts respectively. A knob is installed on the clamping plate to control the tension of the clamping plate. The cover is installed on the outside of the clamping plate.

[0010] Furthermore, the seat assembly also includes a base, a lifting mechanism, and a seat. The seat is connected to the backrest body via an arc-shaped plate, and the seat is connected to the lifting mechanism via the lifting mechanism. The adjustment frame is connected to the lifting mechanism. The seat is equipped with a cushion and armrests.

[0011] Furthermore, the airbag assembly includes a support layer, a cushioning and breathable layer, and an outer skin layer connected in sequence. The lumbar airbag, the side back airbag, and the side waist airbag are located between the cushioning and breathable layer and the outer skin layer, and the patch pressure sensor group is located on the outside of the outer skin layer.

[0012] Furthermore, the backrest body has curved side panels on both sides, which are bent towards the center.

[0013] The dental chair with an airbag backrest provided by this utility model, compared with the prior art, uses a patch pressure sensor group to detect the pressure on different parts of the patient when lying down. After receiving the signal from the patch pressure sensor group, the regulating valve starts to change the path, causing the small airbags at different positions to ventilate and bulge. The bulging small airbags provide support for the patient's back, so that the patient's back can be evenly stressed; at the same time, the ventilation fan guides the airflow in the airbag area, improving the patient's comfort. Attached Figure Description

[0014] Figure 1 This is a front view of the present invention;

[0015] Figure 2 This is an exploded view of the seat assembly in this utility model;

[0016] Figure 3 This is a perspective view of the backrest assembly in this utility model;

[0017] Figure 4 This is an exploded view of the backrest assembly in this utility model;

[0018] Figure 5 This is a three-dimensional view of the airbag section in this utility model;

[0019] Figure 6 This is a cross-sectional view of the airbag section in this utility model;

[0020] Figure 7 yes Figure 6 A magnified view of part A in the middle;

[0021] Figure 8 This is a perspective view of the headrest assembly in this utility model;

[0022] Figure 9 This is an exploded view of the headrest assembly in this utility model.

[0023] Explanation of reference numerals in the attached figures:

[0024] in;

[0025] 1. Seat assembly; 10. Adjustment frame; 11. Adjustment valve; 12. Base; 13. Lifting mechanism; 14. Seat section; 15. Seat cushion; 16. Armrest;

[0026] 2. Backrest assembly; 20. Backrest main body; 21. Airbag section; 210. Small airbag; 211. Support layer; 212. Breathable layer; 213. Outer skin layer; 22. Lumbar airbag; 23. Side back airbag; 24. Side waist airbag; 25. Patch pressure sensor group; 26. Side panel; 27. Air duct; 28. Ventilation fan; 29. ​​Filter cotton;

[0027] 3. Headrest assembly; 30. Connecting plate; 31. Headrest body; 32. Clamping plate; 33. Knob; 34. Connecting post; 35. Protective cover;

[0028] 4. Curved plate. Detailed Implementation

[0029] The present invention will be described in detail below with reference to specific embodiments.

[0030] In this utility model, unless otherwise explicitly specified and limited, when terms such as "set in," "connected," or "linked" appear, these terms should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or a connection through one or more intermediate media. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances. The directional terms appearing in this utility model are for the purpose of better describing the characteristics of the features and the relationships between them. It should be understood that when the placement direction of this utility model changes, the direction of the characteristics of the features and the relationships between them also changes accordingly. Therefore, directional terms do not constitute an absolute limitation on the characteristics of the features and the relationships between them in space, but only a relative limitation.

[0031] like Figures 1 to 9As shown, this utility model provides a dental chair with an airbag backrest, including a dental chair body. The dental chair body includes a seat assembly 1, a backrest assembly 2, and a headrest assembly 3 connected in sequence. The backrest assembly 2 includes a backrest body 20 and an airbag part 21 installed on the backrest body 20. The backrest body 20 is connected to the seat assembly 1 and the headrest assembly 3 respectively. The airbag part 21 is provided with a lumbar airbag 22, a side back airbag 23, and a side waist airbag 24. The lumbar airbag 22 is located on the central axis of the airbag part 21. The side back airbag 23 is located on the left and right sides of the lumbar airbag 22 near the headrest assembly 3. The side waist airbag 24 is located on the left and right sides of the lumbar airbag 22 near the backrest body 20. The airbag part 21 is also provided with a patch pressure sensor group 25.

[0032] The backrest assembly 2 also includes an inflation device for inflating the lumbar airbag 22, the side back airbag 23 and the side waist airbag 24.

[0033] In this embodiment, the seat assembly 1 includes an adjustment frame 10, and the inflation device includes an adjustment valve 11. The adjustment valve 11 is fixedly installed on the adjustment frame 10 and is connected to the lumbar airbag 22, the side back airbag 23 and the side waist airbag 24 respectively; the adjustment valve 11 is connected to an external air source.

[0034] With the above design, when the patient lies down on the dental chair, their back rests against the backrest body 20. Since the patient's back cannot fully fit against the backrest body 20, the pressure sensor group 25 on the airbag part 21 detects the pressure at different positions and transmits the pressure signal to the regulating valve 11. The regulating valve 11 adjusts the airflow delivered by the external air source to the lumbar airbag 22, the side back airbag 23, and the side waist airbag 24 according to the signal, so that the airbags at different positions protrude to different heights, thereby increasing the contact area between the patient's back and the backrest body 20. By distributing the pressure, the pressure on the patient's back is reduced, thereby improving the patient's comfort.

[0035] Since most instruments used in dental surgery require high-pressure airflow to drive them, dental clinics are usually equipped with external air sources such as air compressors. The regulating valve 11 is equipped with an air inlet pipe, which is connected to the external air source.

[0036] In this embodiment, the patch pressure sensor group 25 includes a plurality of closely connected small patch pressure sensors.

[0037] The lumbar airbag 22 corresponds to the patient's lumbar spine, the side back airbag 23 corresponds to the patient's scapula and ribs, and the side waist airbag 24 corresponds to the patient's waist on both sides. The external air source adjusts the height of the lumbar airbag 22, the side back airbag 23, and the side waist airbag 24 respectively through the regulating valve 11. By inflating the airbags in different parts, the height of the protrusions in different positions is made to be different, so that the surface of the backrest body 20 fits the patient's back better.

[0038] In this embodiment, the backrest body 20 is also provided with a ventilation section, which includes an air guide 27 and a ventilation fan 28. The air guide 27 is installed in the backrest body 20, and the ventilation fan 28 is installed in the air guide 27. The air guide 27 is also provided with a filter cotton 29 near the ventilation fan 28.

[0039] When a patient lies on the backrest for a long time, the non-breathable backrest body 20 will cause the patient's back to get hot and sweaty, and may even cause local itching. Through the above design, the ventilation part guides the outside airflow to the airbag part 21. When the patient lies flat on the backrest body 20, the ventilation fan 28 draws the outside airflow into the air guide 27, and then the air guide 27 guides the air to the airbag part 21. The flowing air carries away the heat from the patient's back, reduces the temperature of the patient's back, and improves the patient's comfort.

[0040] In this embodiment, the lumbar airbag 22, the side back airbag 23 and the side waist airbag 24 are each provided with multiple sets of small airbags 210 of different sizes, and each set of small airbags 210 is connected to the regulating valve 11.

[0041] Through the above design scheme, the small airbag 210 can make the lumbar airbag 22, the side back airbag 23 and the side waist airbag 24 protrude at different heights. The independently connected small airbag 210 can expand or contract independently under the drive of the regulating valve 11, so that the surface of the backrest body 20 fits the patient's back as closely as possible.

[0042] In this embodiment, the headrest assembly 3 includes a connecting plate 30, a clamping plate 32, a knob 33, a cover 35, a connecting post 34, and a headrest body 31. The connecting plate 30 is slidably connected to the backrest body 20. A set of connecting posts 34 are fixedly installed on the connecting plate 30 and the headrest body 31. The clamping plate 32 connects two sets of connecting posts 34 respectively. A knob 33 is installed on the clamping plate 32 to control the tension of the clamping plate 32. The cover 35 is installed on the outside of the clamping plate 32.

[0043] With the above design, when the user loosens the knob 33, the clamp 32 is in a relaxed state, the connecting posts 34 on both sides of the clamp 32 are loosened, and the headrest can be adjusted freely; when adjusted to a suitable position, the user tightens the knob 33, the clamp 32 gradually clamps, the connecting posts 34 on both sides are clamped, and the headrest no longer rotates, so as to prevent the headrest from sliding when the patient is lying down and affecting the patient's experience.

[0044] In this embodiment, the seat assembly 1 further includes a base 12, a lifting part 13 and a seat part 14. The seat part 14 is connected to the backrest body 20 through an arc plate 4. The seat part 14 is connected to the lifting part 13. The adjustment frame 10 is connected to the lifting part 13. A seat cushion 15 and an armrest 16 are provided on the seat part 14.

[0045] Since the base 12, the lifting part 13 and the seat part 14 are existing technologies and not improvements of this utility model, they are not described in detail in this embodiment.

[0046] In this embodiment, the airbag portion 21 includes a support layer 211, a buffer breathable layer 212 and an outer skin layer 213 connected in sequence. The lumbar airbag 22, the side back airbag 23 and the side waist airbag 24 are disposed between the buffer breathable layer 212 and the outer skin layer 213, and the patch pressure sensor group 25 is disposed on the outside of the outer skin layer 213.

[0047] With the above design, the support layer 211 is made of honeycomb fibers and the breathable layer 212 is made of dense sponge. The support layer 211 can provide support for the airbag part 21, and the breathable layer 212 can provide cushioning while allowing the airflow blown by the breathable fan 28 to pass through and reach the patient's back. In this embodiment, multiple breathable holes are evenly arranged on the outer skin layer 213 for ventilation.

[0048] In this embodiment, the backrest body 20 is provided with arc-shaped side plates 26 on both sides, and the side plates 26 on both sides are bent towards the center.

[0049] Through the above design scheme, the inclined and bent side plate 26 can make the patient as centered as possible, allowing the patient to align with different parts of the airbag 21 as much as possible, ensuring that the lumbar airbag 22, the lateral back airbag 23 and the lateral waist airbag 24 are accurately aligned with the corresponding parts of the patient's body.

[0050] The dental chair with an airbag backrest provided by this utility model, compared with the prior art, has a patch pressure sensor group 25 that detects the pressure on different parts of the patient when lying down. After receiving the signal from the patch pressure sensor group 25, the regulating valve 11 starts to change the path, so that the small airbags 210 at different positions start to ventilate and bulge. The bulging small airbags 210 provide support for the patient's back, so that the patient's back can be evenly stressed. At the same time, the ventilation fan 28 guides the airflow in the airbag part 21, improving the patient's comfort.

[0051] Where there is no conflict, the above embodiments and features can be combined with each other.

[0052] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the essence and scope of the technical solutions of this utility model.

Claims

1. A dental chair provided with an airbag backrest, comprising a dental chair main body, the dental chair main body comprising a seat assembly (1), a backrest assembly (2) and a headrest assembly (3) connected in sequence, characterized in that: The backrest assembly (2) includes a backrest body (20) and an airbag part (21) installed on the backrest body (20). The backrest body (20) is connected to the seat assembly (1) and the headrest assembly (3) respectively. The airbag part (21) is provided with a lumbar airbag (22), a side back airbag (23) and a side waist airbag (24). The lumbar airbag (22) is located on the central axis of the airbag part (21). The side back airbag (23) is located on the left and right sides of the lumbar airbag (22) near the headrest assembly (3). The side waist airbag (24) is located on the left and right sides of the lumbar airbag (22) near the backrest body (20). The airbag part (21) is also provided with a patch pressure sensor group (25). The backrest assembly (2) also includes an inflation device for inflating the lumbar airbag (22), the side back airbag (23), and the side waist airbag (24).

2. A dental chair provided with an air bag backrest according to claim 1, characterized in that: The seat assembly (1) includes an adjustment frame (10), and the inflation device includes an adjustment valve (11). The adjustment valve (11) is fixedly installed on the adjustment frame (10). The adjustment valve (11) is connected to the lumbar airbag (22), the side back airbag (23), and the side waist airbag (24) respectively. The adjustment valve (11) is connected to an external air source.

3. A dental chair with an air-cushioned backrest according to claim 1, characterized in that: The backrest body (20) is also provided with a ventilation section, which includes an air guide (27) and a ventilation fan (28). The air guide (27) is installed in the backrest body (20), and the ventilation fan (28) is installed in the air guide (27). The air guide (27) is also provided with a filter cotton (29) near the ventilation fan (28).

4. A dental chair provided with an air bag backrest according to claim 2, characterized in that: The lumbar airbag (22), the lateral back airbag (23) and the lateral waist airbag (24) are each equipped with multiple sets of small airbags (210) of different sizes, and each set of small airbags (210) is connected to the regulating valve (11).

5. The dental chair having an air bag backrest according to claim 1, wherein: The headrest assembly (3) includes a connecting plate (30), a clamping plate (32), a knob (33), a cover (35), a connecting post (34), and a headrest body (31). The connecting plate (30) is slidably connected to the backrest body (20). A set of connecting posts (34) is fixedly installed on the connecting plate (30) and a set of connecting posts (34) is fixedly installed on the headrest body (31). The clamping plate (32) is connected to two sets of connecting posts (34) respectively. A knob (33) is installed on the clamping plate (32). The knob (33) is used to control the tension of the clamping plate (32). The cover (35) is installed on the outside of the clamping plate (32).

6. A dental chair provided with an air bag backrest according to claim 2, characterized in that: The seat assembly (1) also includes a base (12), a lifting part (13) and a seat part (14). The seat part (14) is connected to the backrest body (20) via an arc plate (4). The seat part (14) is connected to the base (12) via the lifting part (13). The adjustment frame (10) is connected to the lifting part (13). A seat cushion (15) and an armrest (16) are provided on the seat part (14).

7. A dental chair provided with an air bag backrest according to claim 1, characterized in that: The airbag section (21) includes a support layer (211), a cushioning and breathable layer (212), and an outer skin layer (213) connected in sequence. The lumbar airbag (22), the side back airbag (23), and the side waist airbag (24) are disposed between the cushioning and breathable layer (212) and the outer skin layer (213). The patch pressure sensor group (25) is disposed on the outside of the outer skin layer (213).

8. A dental chair provided with an air bag backrest according to claim 1, characterized in that: The backrest body (20) has arc-shaped side panels (26) on both sides, and the side panels (26) on both sides are bent towards the center.

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