A child height adjustment aid for a dental chair

Abstract

This utility model discloses a height-adjustable auxiliary device for dental chairs for children, including a dental chair support. A seat is fixedly installed on the top surface of the dental chair support. The top surface of the seat has a mounting hole, and a concave seat cushion is provided inside the mounting hole. An adjustment component connected to the concave seat cushion is provided inside the mounting hole. The adjustment component includes a fixed housing, rails, a slider, a connecting rod, a mounting base plate, a connecting block, a bidirectional ball screw, a drive motor, and a support plate. The fixed housing is fixedly installed inside the mounting hole on the top surface of the dental chair support by bolts. Two rails are fixedly installed on the bottom surface of the fixed housing. When in use, the concave seat cushion is stably raised and lowered by the adjustment component. Combined with an adjustable head fixation component and a flexible strap, it effectively reduces shaking during children's treatment and provides a stable operating environment for doctors.

Description

Technical Field

[0001] This utility model belongs to the field of medical device technology, specifically a height adjustment auxiliary device for children's dental chairs. Background Technology

[0002] A dental chair, also known as a dental treatment chair, is a specialized piece of equipment used by patients during oral treatment. It is a core medical device in dental clinics and hospital dentistry departments. It typically consists of a seat, backrest, headrest, armrests, and footrest, and integrates an electric or hydraulic drive system. This allows for functions such as chair height adjustment, backrest tilting, and headrest position adjustment to meet the dentist's needs when operating on different parts of the patient's mouth. Dental chairs are generally equipped with a lighting system, using cold light source shadowless lamps or LED lights to provide a clear field of vision. They also feature an instrument tray, a sip dispenser, and strong / weak suction devices to facilitate the dentist's access to dental tools, rinsing the mouth, and removing saliva and debris, ensuring both comfort and efficiency during treatment.

[0003] In clinical dental settings, there is a real need for adult and pediatric patients to share treatment equipment. Currently, dental chairs are divided into adult and pediatric chairs. However, pediatric chairs have a narrow functional range, serving only children. Frequently switching between chairs to simultaneously meet the needs of both adults and children would be time-consuming and cumbersome. Therefore, clinicians often use adult chairs directly for both types of patients. However, adult chairs are designed based on adult body size and positioning needs. When children use them, due to differences in body size and weight, they are prone to slipping while seated. Furthermore, while adult chairs can be adjusted in height as a whole, they cannot be adjusted specifically for the child's seat area. This results in insufficient comfort and stability for children during treatment, reducing treatment efficiency and the child's overall experience, failing to meet the growing needs of both doctors and patients. Utility Model Content

[0004] To overcome the shortcomings of the existing technology, the purpose of this utility model is to provide a height adjustment auxiliary device for children's dental chairs.

[0005] The technical solution adopted by this utility model is as follows: A child height adjustment auxiliary device for a dental chair includes a dental chair frame, a seat fixedly installed on the top surface of the dental chair frame, a mounting hole provided on the top surface of the seat, a concave seat cushion provided inside the mounting hole, and an adjustment component connected to the concave seat cushion provided inside the mounting hole; the adjustment component includes a fixed housing, a track, a slider, a connecting rod, a mounting base plate, a connecting block, a bidirectional ball screw, a drive motor, and a support plate. The fixed housing is fixedly installed inside the mounting hole on the top surface of the dental chair frame by bolts, and two... The system comprises two tracks, each with multiple sliders slidably connected to its top surface. Each slider has a connecting rod hinged to its top surface. A mounting base plate is hinged to the end of each connecting rod away from the slider. A connecting block is fixedly mounted on one side of each track. A bidirectional ball screw is threadedly connected to the middle of the connecting block. A drive motor is fixedly mounted on the inner wall of the fixed housing. The drive end of the drive motor is fixed to one end of the bidirectional ball screw. A support plate is fixedly mounted on the top surface of the mounting base plate. The bottom surface of the concave seat cushion contacts the top surface of the support plate. A positioning mounting assembly connected to the concave seat cushion is provided on the top surface of the mounting base plate.

[0006] In a preferred embodiment, the dental chair support has a backrest on its rear side, and a headrest assembly is provided on one side of the backrest. The headrest assembly includes a fixing seat, a bidirectional screw, a T-shaped slider, an L-shaped mounting rod, a connecting rod, and a head limit seat. The fixing seat is fixedly installed on the rear side of the backrest. The bidirectional screw is rotatably connected inside the fixing seat. Two T-shaped sliders are threadedly connected to the outer surface of the bidirectional screw. One end of the T-shaped slider extends to the outside of the fixing seat. An L-shaped mounting rod is fixedly installed on the top surface of the T-shaped slider. A connecting rod is hinged to the end of the L-shaped mounting rod away from the T-shaped slider. A head limit seat is fixedly installed at one end of the connecting rod.

[0007] In a preferred embodiment, the positioning and mounting assembly includes a positioning cylinder, a circular iron plate, positioning posts, and magnetic absorbing plates. Multiple positioning cylinders are fixedly mounted on the top surface of the mounting base near the corners. A circular iron plate is fixedly mounted on the inner bottom surface of the positioning cylinder. Multiple positioning posts corresponding to the positioning cylinders are fixedly mounted on the bottom surface of the concave seat cushion. The bottom end of each positioning post is inserted into the interior of the positioning cylinder. A magnetic absorbing plate is fixedly mounted on the bottom end of each positioning post, and the magnetic absorbing plate is attracted to the circular iron plate.

[0008] In a preferred embodiment, two flexible straps are fixedly installed on the front side of the chair back.

[0009] In a preferred embodiment, both the seat and the concave cushion are made of high-quality sponge combined with environmentally friendly leather material.

[0010] In a preferred embodiment, an arc-shaped protective pad is fixedly installed on one side of the head limiting seat.

[0011] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0012] In this invention, by adopting the aforementioned solution, the operator first starts the drive motor, which drives the bidirectional ball screw to rotate. The threaded engagement between the bidirectional ball screw and the connecting block causes the connecting block to move along the screw. Then, through the linkage between the slider on the track and the connecting support rod, the mounting base plate is raised and lowered. This allows for precise adjustment of the height of the concave seat cushion, making the child's position on the dental chair more suitable for the doctor's examination and operation. During the child's examination and treatment, when not in use, the concave seat cushion remains flush with the chair, and the flexible straps and head restraint can be stored without affecting adult use. When in use, the concave seat cushion is raised and lowered stably by the adjustment component, and together with the adjustable head fixing component and flexible straps, it effectively reduces the shaking during the child's examination and provides a stable operating environment for the doctor. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the right-side structure of this utility model;

[0015] Figure 3 This is a schematic diagram of the seat structure of this utility model;

[0016] Figure 4 This is a schematic diagram of the fixed housing structure of this utility model;

[0017] Figure 5 This is a schematic diagram of the support plate structure of this utility model;

[0018] Figure 6 This is a schematic diagram of the concave seat cushion of this utility model before installation.

[0019] The diagram shows the following markings: 1. Dental chair frame; 2. Seat; 3. Mounting hole; 4. Concave seat cushion; 5. Adjustment assembly; 501. Fixed housing; 502. Track; 503. Slider; 504. Connecting support rod; 505. Mounting base plate; 506. Connecting block; 507. Bidirectional ball screw; 508. Drive motor; 509. Support plate; 6. Backrest; 7. Headrest assembly; 701. Fixing seat; 702. Bidirectional screw; 703. T-shaped slider; 704. L-shaped mounting rod; 705. Connecting rod; 706. Headrest limit seat; 8. Flexible strap; 9. Arc-shaped pad; 10. Positioning and mounting assembly; 101. Positioning cylinder; 102. Circular iron plate; 103. Positioning post; 104. Magnetic suction plate. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below in conjunction with the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0021] A height-adjustable assistive device for children's dental chairs, reference Figures 1-6 As shown, the dental chair includes a dental chair support 1, with a seat 2 fixedly mounted on the top surface of the support 1. The top surface of the seat 2 has a mounting hole 3, and a concave cushion 4 is installed inside the mounting hole 3. Both the seat 2 and the concave cushion 4 are made of high-quality sponge combined with environmentally friendly leather. An adjustment component 5, connected to the concave cushion 4, is installed inside the mounting hole 3. The mounting hole 3 facilitates the subsequent installation of the concave cushion 4, and the height can be adjusted using the adjustment component 5, improving adaptability. The use of high-quality sponge and environmentally friendly leather in the seat 2 and concave cushion 4 ensures user comfort. The environmentally friendly leather is also easy to clean and wear-resistant, maintaining hygiene and a good appearance over a long period, which is beneficial for the hygiene management of the dental treatment environment.

[0022] Furthermore, the adjustment assembly 5 includes a fixed housing 501, a track 502, a slider 503, a connecting rod 504, a mounting base plate 505, a connecting block 506, a bidirectional ball screw 507, a drive motor 508, and a support plate 509. The fixed housing 501 is fixedly installed inside the mounting hole 3 on the top surface of the dental chair support 1 by bolts. The top of the fixed housing 501 is an open structure, which facilitates the installation of the fixed housing 501 on the dental chair support 1 by bolts. The installation method is simple and reliable, and facilitates later maintenance, disassembly and replacement. It can effectively ensure the overall stability of the adjustment assembly 5 and provide a foundation for the subsequent height adjustment function.

[0023] Furthermore, two tracks 502 are fixedly installed on the inner bottom surface of the fixed housing 501, and multiple sliders 503 are slidably connected to the top surface of each track 502. Connecting rods 504 are hinged to the top surface of each slider 503. A mounting base plate 505 is hinged to the end of the connecting rod 504 away from the slider 503. A connecting block 506 is fixedly installed on one side of the track 502, and a bidirectional ball screw 507 is threadedly connected to the middle of the connecting block 506. A drive motor 508 is fixedly installed on the inner wall of the fixed housing 501, and the drive end of the drive motor 508 is fixed to one end of the bidirectional ball screw 507. A support plate 509 is fixedly installed on the top surface of the mounting base plate 505. The bottom surface of the concave cushion 4 contacts the top surface of the support plate 509. A positioning mounting assembly 10 connected to the concave cushion 4 is provided on the top surface of the mounting base plate 505. A total of [number missing] sliders 503 are provided. There are four sliders 503, with two sliders forming two groups. Each group of two sliders 503 has a connecting block 506 mounted on one side. The bidirectional ball screw 507 has threaded sections with opposite directions at both ends, which drives the two connecting blocks 506 to move in corresponding directions. The other end of the bidirectional ball screw 507 is fixedly mounted in the middle of the bearing. Through the cooperation of the set track 502, sliders 503, and connecting support rod 504, and combined with the drive of the bidirectional ball screw 507 and the drive motor 508, the mounting base 505 can be raised and lowered precisely and stably, thereby driving the height adjustment of the concave seat cushion 4. This can meet the positioning needs of children of different heights when using adult dental chairs, making it more convenient for doctors to operate, improving the efficiency of diagnosis and treatment and the medical experience of children. At the same time, the overall structure is stable and can withstand the pressure when children use it, ensuring the long-term reliable operation of the device.

[0024] Furthermore, the positioning and mounting assembly 10 includes a positioning cylinder 101, a circular iron plate 102, positioning posts 103, and a magnetic suction plate 104. Multiple positioning cylinders 101 are fixedly mounted on the top surface of the mounting base plate 505 near its corners. A circular iron plate 102 is fixedly mounted on the inner bottom surface of the positioning cylinder 101. Multiple positioning posts 103 corresponding to the positioning cylinders 101 are fixedly mounted on the bottom surface of the concave seat cushion 4. The bottom ends of the positioning posts 103 are inserted into the interior of the positioning cylinders 101. A magnetic suction plate 104 is fixedly installed, which is attracted to the circular iron plate 102. Through the insertion and cooperation of the positioning cylinder 101 and the positioning post 103, combined with the attraction between the magnetic suction plate 104 and the circular iron plate 102, the concave seat cushion 4 can be quickly and firmly installed on the mounting base plate 505. The installation is convenient and the connection is firm. It is convenient for daily disassembly, cleaning and replacement of the concave seat cushion 4, and it can keep the position of the concave seat cushion 4 stable during use, so that it will not easily move and ensure the use effect.

[0025] Furthermore, a backrest 6 is provided on the rear side of the dental chair support 1, and a head fixation component 7 is provided on one side of the backrest 6. Two flexible straps 8 are fixedly installed on the front side of the backrest 6. The backrest 6 provides back support for adults and children, and the flexible straps 8 help to fix the child's body and prevent the child from moving around during treatment. Together with the head fixation component 7, the child is restrained and fixed from different parts of the body, improving the child's stability in the dental chair and facilitating the doctor's treatment. One side of the two flexible straps 8 is equipped with a Velcro barbed side, and the other side is equipped with a Velcro rough side, so that the two flexible straps 8 can be glued together to easily restrain the child. When the two flexible straps 8 are not in use, they can be glued to the Velcro on the rear side of the backrest 6, thus reducing the impact of the flexible straps 8 on adults using the dental chair.

[0026] Furthermore, the head fixing component 7 includes a fixing base 701, a bidirectional screw 702, a T-shaped slider 703, an L-shaped mounting rod 704, a connecting rod 705, and a head limiting seat 706. The fixing base 701 is fixedly installed on the rear side of the chair back 6. The bidirectional screw 702 is rotatably connected inside the fixing base 701. Two T-shaped sliders 703 are threadedly connected to the outer surface of the bidirectional screw 702. One end of the T-shaped slider 703 extends to the outside of the fixing base 701. Through the bidirectional screw 702, the two T-shaped sliders 703 can be driven to move in corresponding directions, providing a power basis for the adjustment of the head fixing component 7. This adjustment method is simple and efficient, and the distance between the two T-shaped sliders 703 can be flexibly adjusted according to the size of the child's head, preparing to adapt to different children's heads.

[0027] Furthermore, an L-shaped mounting rod 704 is fixedly installed on the top surface of the T-shaped slider 703. A connecting rod 705 is hinged to the end of the L-shaped mounting rod 704 away from the T-shaped slider 703. A head limit seat 706 is fixedly installed at one end of the connecting rod 705. An arc-shaped protective pad 9 is fixedly installed on one side of the head limit seat 706. Through the hinged design of the L-shaped mounting rod 704 and the connecting rod 705, the head limit seat 706 can be rotated and stored when not in use, making it convenient for subsequent personnel to use the dental chair. The arc-shaped protective pad 9 can increase the comfort of contact with the child's head. At the same time, the head limit seat 706 can effectively restrict the position of the child's head, prevent the head from moving during the treatment, ensure the doctor's field of vision and operation accuracy, and improve the safety and effectiveness of the treatment.

[0028] The implementation principle of this utility model of a child height adjustment auxiliary device for dental chair is as follows: The user first inserts the positioning post 103 at the bottom of the concave seat cushion 4 into the positioning cylinder 101 through the positioning and installation component 10. By using the adsorption effect of the magnetic piece 104 and the circular iron plate 102, the concave seat cushion 4 is quickly and securely installed in the mounting hole 3 of the seat 2, so that it forms a flat surface with the seat 2, making it convenient for the child to sit.

[0029] When the height of the concave seat cushion 4 needs to be adjusted, the drive motor 508 is activated to rotate the bidirectional ball screw 507. The threaded engagement between the bidirectional ball screw 507 and the connecting block 506 causes the connecting block 506 to move along the screw. This, in turn, through the linkage between the slider 503 on the track 502 and the connecting support rod 504, achieves the raising and lowering of the mounting base 505. This allows for precise adjustment of the height of the concave seat cushion 4, making the child's posture in the dental chair more suitable for the doctor's examination and treatment. During the child's examination and treatment, the flexible strap 8 on the front side of the backrest 6 can wrap around the child's body for initial restraint to prevent large-scale swaying. At the same time, rotating the double-sided head fixing component 7... The screw 702 drives the T-shaped slider 703 to move within the fixed seat 701. The L-shaped mounting rod 704 and connecting rod 705 adjust the position of the head limit seat 706, which, together with the arc-shaped protective pad 9, fits the child's head for stable fixation. When not in use, the concave seat 4 remains flush with the seat 2, and the flexible strap 8 and head limit seat 706 can be stored without affecting adult use. When in use, the concave seat 4 is stably raised and lowered by the adjusting component 5, and together with the adjustable head fixation component 7 and flexible strap 8, it effectively reduces shaking during the child's treatment, provides a stable operating environment for doctors, and significantly improves the efficiency and safety of diagnosis and treatment.

[0030] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A child height adjustment aid for a dental chair comprising a dental chair support (1) characterised in that: The dental chair support (1) has a seat (2) fixedly installed on its top surface. The top surface of the seat (2) has an installation hole (3). The installation hole (3) has a concave seat cushion (4) inside it. The installation hole (3) has an adjustment component (5) connected to the concave seat cushion (4) inside it. The adjustment assembly (5) includes a fixed housing (501), rails (502), sliders (503), connecting rods (504), mounting base plate (505), connecting block (506), bidirectional ball screw (507), drive motor (508), and support plate (509). The top surface of the dental chair bracket (1) is located inside the mounting hole (3) and the fixed housing (501) is fixedly installed by bolts. Two rails (502) are fixedly installed on the bottom surface of the fixed housing (501), and multiple sliders (503) are slidably connected to the top surfaces of the two rails (502). The connecting rods (504) are hinged to the top surfaces of the multiple sliders (503). A mounting base plate (505) is hinged to one end away from the slider (503). A connecting block (506) is fixedly installed on one side of the track (502). A bidirectional ball screw (507) is threadedly connected to the middle of the connecting block (506). A drive motor (508) is fixedly installed on the inner wall of the fixed housing (501). The drive end of the drive motor (508) is fixed to one end of the bidirectional ball screw (507). A support plate (509) is fixedly installed on the top surface of the mounting base plate (505). The bottom surface of the concave seat (4) is in contact with the top surface of the support plate (509). A positioning mounting component (10) connected to the concave seat (4) is provided on the top surface of the mounting base plate (505).

2. The child height adjustment auxiliary device for a dental chair as described in claim 1, characterized in that: The dental chair support (1) is provided with a backrest (6) on the rear side, and a head fixing component (7) is provided on one side of the backrest (6); The head fixing assembly (7) includes a fixing seat (701), a bidirectional screw (702), a T-shaped slider (703), an L-shaped mounting rod (704), a connecting rod (705), and a head limiting seat (706). The fixing seat (701) is fixedly installed on the rear side of the chair back (6). The bidirectional screw (702) is rotatably connected inside the fixing seat (701). Two T-shaped sliders (703) are threadedly connected to the outer surface of the bidirectional screw (702). One end of the T-shaped slider (703) extends to the outside of the fixing seat (701). The L-shaped mounting rod (704) is fixedly installed on the top surface of the T-shaped slider (703). The connecting rod (705) is hinged to the end of the L-shaped mounting rod (704) away from the T-shaped slider (703). The head limiting seat (706) is fixedly installed on one end of the connecting rod (705).

3. The height adjustment assistive device for a dental chair for children as described in claim 1, characterized in that: The positioning and mounting assembly (10) includes a positioning cylinder (101), a circular iron plate (102), a positioning post (103), and a magnetic absorbing piece (104). Multiple positioning cylinders (101) are fixedly installed on the top surface of the mounting base plate (505) near the corner. A circular iron plate (102) is fixedly installed on the bottom surface inside the positioning cylinder (101). Multiple positioning posts (103) corresponding to the positioning cylinders (101) are fixedly installed on the bottom surface of the concave seat cushion (4). The bottom end of the positioning post (103) is inserted into the inside of the positioning cylinder (101). A magnetic absorbing piece (104) is fixedly installed on the bottom end of the positioning post (103). The magnetic absorbing piece (104) is attracted to the circular iron plate (102).

4. The height adjustment assistive device for a dental chair for children as described in claim 2, characterized in that: Two flexible straps (8) are fixedly installed on the front side of the chair back (6).

5. The child height adjustment assistive device for a dental chair as described in claim 1, characterized in that: Both the seat (2) and the concave cushion (4) are made of high-quality sponge and environmentally friendly leather.

6. The child height adjustment auxiliary device for a dental chair as described in claim 2, characterized in that: An arc-shaped protective pad (9) is fixedly installed on one side of the head limiting seat (706).

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