Multifunctional armrest of dental chair

By introducing a lifting and angle adjustment mechanism into the dental chair armrests, the problem of inflexible adjustment of existing dental chair armrests has been solved, enabling personalized adjustment of the armrests and convenient access to medical instruments, thereby improving patient comfort and medical efficiency.

CN224099635UActive Publication Date: 2026-04-10FOSHAN KEJU MEDICAL APP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
FOSHAN KEJU MEDICAL APP CO LTD
Filing Date
2025-05-27
Publication Date
2026-04-10

AI Technical Summary

Technical Problem

Existing dental chair armrests lack flexible and precise height and angle adjustment mechanisms, making it difficult to meet the individualized needs of various patients. This leads to arm discomfort during long treatment sessions, affecting comfort and treatment compliance.

Method used

A multifunctional armrest for a dental chair was designed, employing a lifting mechanism and an angle adjustment mechanism. The height and angle of the armrest are adjusted via threaded columns and hydraulic rods, and a storage mechanism is provided for easy access to miniature medical devices.

Benefits of technology

It enables flexible and precise height and angle adjustment of the handrails, improving patient comfort and treatment compliance, while optimizing the storage and retrieval process of medical devices and enhancing the efficiency of medical and nursing work.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a multifunctional armrest of a dental chair, which comprises a fixed column, the inside of the fixed column is slidably connected with a lifting mechanism, one side of the fixed column is fixedly connected with a fixed joint, and the surface of the fixed joint is rotatably connected with an angle adjusting mechanism. According to the multifunctional armrest of the dental chair, through the arrangement of the angle adjusting mechanism and the lifting mechanism, when the multifunctional armrest is used, a lifting column can be pulled to slide in a fixed column to a proper position according to user requirements, then the lifting column is fixed through a threaded column, and then a hydraulic rod on one side is started; the hydraulic rod stretches out and draws back and drives the fixing column on the tail end fixing connector to rotate on the left side bearing, so that the angle of the armrest body on the fixing column is adjusted, the effect of adjusting the height and the angle of the armrest body is achieved, the flexibility and the convenience of the device in the using process are improved, and the individual requirements of various patients are met.
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Description

TECHNICAL FIELD

[0001] The utility model relates to technical field of handrails, specifically relates to a multifunctional handrail of dental chair. BACKGROUND

[0002] The dental chair is usually used for patients to lie on, so that the teeth of the patient can be cleaned or examined, the existing dental chair has the problem that the patient needs to lie on the dental chair for a long time when using because the tooth cleaning time is long, and the existing dental chair handrail is too single in function and cannot bring more convenience to the patient, so that there are certain disadvantages when using.

[0003] The multifunctional handrail for dental chair disclosed in the announcement No. CN217186882U, although the multifunctional handrail for dental chair relates to the field of dental chair, aims at the problem that the patient needs to lie on the dental chair for a long time when using the existing dental chair because the tooth cleaning time is long, and the existing dental chair handrail is too single in function and cannot bring more convenience to the patient, and the multifunctional handrail for dental chair comprises a handrail body, two ends of the handrail body are symmetrically provided with mounting shafts for mounting the handrail body, one end of the handrail body is provided with movable blocks for placing arms at intervals, and one side of the movable block is provided with a sliding shaft.

[0004] The above-mentioned patent has two arm placing places inside the handrail, and the two arm placing places are provided with switches and reset buttons, so as to facilitate reminding the dentist, and the sliding shaft inside the device cooperates with the sliding groove to facilitate changing the position of the movable block, and then the placing position of the arm is adjusted. The device is not easy to adjust the height and angle of the handrail when using, the existing multifunctional handrail often lacks flexible and accurate height and angle adjusting mechanism, and it is difficult to meet the individual needs of various patients.

[0005] The utility model wants to solve the technical problem as follows: provide a higher practicality, and can pass through simple operation, structure is relatively simple one kind of dental chair's multifunctional handrail, solved above -mentioned background art proposed existing multifunctional handrail often lacks flexible and accurate height and angle adjusting mechanism, difficult to satisfy various patient's individualized demand problem.

[0006] The utility model discloses a purpose can be realized through the following technical schemes:

[0007] A kind of multifunctional handrail of dental chair, including fixed column, the inside sliding connection of the fixed column has lifting mechanism, one side of the fixed column is fixedly connected with fixed joint, the surface of the fixed joint is rotatably connected with angle adjusting mechanism, the top of the lifting mechanism is fixedly connected with handrail main body, the inside of the handrail main body is equipped with sliding slot, the inside of the sliding slot is slidably connected with receiving mechanism,

[0008] The lifting mechanism includes lifting column slidably connected in the fixed column, the surface of the lifting column and the fixed column is equipped with a plurality of screw holes, and the inside screw thread of one of the screw holes is connected with threaded column;

[0009] The angle adjusting mechanism includes hydraulic rod rotatably connected to the surface of the fixed joint, and the bottom of the hydraulic rod is rotatably connected with rotating joint.

[0010] The receiving mechanism includes collection drawer slidably connected in the inside of the sliding slot, the back of the collection drawer is fixedly connected with two support springs, the surface of the collection drawer is slidably connected with friction limiting block, and the bottom of the friction limiting block is rotatably connected with rotating shaft.

[0011] As a further scheme of the utility model: one side of the rotating shaft is fixedly connected with fixed block, and the fixed block is fixedly connected to the bottom of the handrail main body, and the fixed block is convenient for supporting the rotating shaft.

[0012] As a further scheme of the utility model: one side of the fixed column is fixedly connected with rotating column, and the distal end of the rotating column is rotatably connected with bearing, and the bearing is convenient for supporting the rotating column.

[0013] As a further scheme of the utility model: the back of the bearing is fixedly connected with connecting plate, and the connecting plate is fixedly connected to the bottom of the rotating joint, and the connecting plate is convenient for connecting external connecting structure.

[0014] As a further scheme of the utility model: the surface of the handrail main body is fixedly connected with placing block, and the surface of the placing block is mounted with PLC controller, and the PLC controller is convenient for controlling the hydraulic rod to start.

[0015] As a further scheme of the utility model: both sides of the collection drawer are fixedly connected with positioning blocks, the positioning blocks are slidably connected in the interiors of the sliding grooves, and the collection drawer is convenient for collecting small medical instruments.

[0016] As a further scheme of the utility model: four threaded holes are formed in the surface of the connecting plate, positioning bolts are in threaded connection in the interiors of the threaded holes, and the positioning bolts are convenient for fixedly connecting the connecting plate.

[0017] The utility model discloses beneficial effects are:

[0018] 1. Through the setting of angle adjusting mechanism and lifting mechanism, when using, according to user demand, lifting column can be pulled in the fixed column interior sliding, and it is slid to the appropriate position, then, the fixed column on the fixed joint on the tail end is rotated on the left side bearing by the extension of hydraulic rod and the driving, the handrail main body on the fixed column is angle adjusted, thereby reach the height and angle adjusting effect of handrail main body, improve the flexibility and convenience of device in the use process, satisfy the individualized demand of various patients.

[0019] 2. Through the setting of storage mechanism, when micro medical instrument is stored, the friction limiting block on one side of the rotating shaft is rotated, the friction limiting block is separated from the surface of the collection drawer, the collection drawer is ejected from the interior of the sliding groove under the reverse action force provided by the two supporting springs at the back, medical staff is convenient for taking micro medical instrument, thereby reach the optimization micro medical instrument storage and taking process, improve the medical work efficiency and the purpose of convenience. DRAWINGS

[0020] The utility model will be further described below in combination with the drawings.

[0021] Figure 1 It is the whole structure schematic diagram of the utility model;

[0022] Figure 2 It is the angle adjusting mechanism structure schematic diagram of the utility model;

[0023] Figure 3 It is the lifting mechanism structure schematic diagram of the utility model;

[0024] Figure 4 It is the storage mechanism structure schematic diagram of the utility model.

[0025] In the diagram: 1. Fixed column; 2. Lifting mechanism; 201. Lifting column; 202. Threaded column; 3. Fixed joint; 4. Angle adjustment mechanism; 401. Hydraulic rod; 402. Rotary joint; 5. Handrail body; 6. Storage mechanism; 601. Collection drawer; 602. Support spring; 603. Friction limit block; 604. Rotating shaft; 7. Fixed block; 8. Rotating column; 9. Bearing; 10. Connecting plate; 11. Placement block; 12. PLC controller; 13. Positioning block; 14. Positioning bolt. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0027] like Figures 1-4 As shown, a multifunctional armrest for a dental chair includes a fixed post 1. A lifting mechanism 2 is slidably connected inside the fixed post 1. A fixed connector 3 is fixedly connected to one side of the fixed post 1. An angle adjustment mechanism 4 is rotatably connected to the surface of the fixed connector 3. Through the angle adjustment mechanism 4 and the lifting mechanism 2, the height and angle of the armrest body 5 can be adjusted, improving the flexibility and convenience of the device during use and meeting the personalized needs of various patients. The top of the lifting mechanism 2 is fixedly connected to the armrest body 5. A sliding groove is provided inside the armrest body 5, and a storage mechanism 6 is slidably connected inside the groove. The storage mechanism 6 optimizes the storage and retrieval process of micro-medical devices, improving the efficiency and convenience of medical work.

[0028] The lifting mechanism 2 includes a lifting column 201 that is slidably connected inside the fixed column 1. Both the lifting column 201 and the fixed column 1 have several threaded holes on their surfaces, and a threaded column 202 is threadedly connected inside one of the threaded holes.

[0029] The angle adjustment mechanism 4 includes a hydraulic rod 401 rotatably connected to the surface of the fixed joint 3, and a rotating joint 402 rotatably connected to the bottom of the hydraulic rod 401.

[0030] The storage mechanism 6 includes a collection drawer 601 that is slidably connected to the inside of the slide. Two support springs 602 are fixedly connected to the back of the collection drawer 601. A friction limit block 603 is slidably connected to the surface of the collection drawer 601. A rotating shaft 604 is rotatably connected to the bottom of the friction limit block 603.

[0031] like Figure 1As shown, one side of the rotating shaft 604 is fixedly connected with a fixed block 7, the fixed block 7 is fixedly connected to the bottom of the handrail main body 5, and the fixed block 7 facilitates supporting the rotating shaft 604;

[0032] As shown in the figure, Figure 1 As shown, one side of the fixed column 1 is fixedly connected with a rotating column 8, the distal end of the rotating column 8 is rotatably connected with a bearing 9, and the bearing 9 facilitates supporting the rotating column 8;

[0033] As shown in the figure, Figure 1 As shown, the back of the bearing 9 is fixedly connected with a connecting plate 10, and the connecting plate 10 is fixedly connected to the bottom of the rotating joint 402, and the connecting plate 10 facilitates connecting an external connecting structure;

[0034] As shown in the figure, Figure 1 As shown, the surface of the handrail main body 5 is fixedly connected with a placing block 11, and the surface of the placing block 11 is mounted with a PLC controller 12, and the PLC controller 12 facilitates controlling the hydraulic rod 401 to start;

[0035] As shown in the figure, Figure 4 As shown, both sides of the collection drawer 601 are fixedly connected with positioning blocks 13, and the positioning blocks 13 are slidingly connected to the inside of the sliding groove, and the collection drawer 601 facilitates collecting small medical instruments;

[0036] As shown in the figure, Figure 1 As shown, the surface of the connecting plate 10 is provided with four threaded holes, and the inside of the threaded holes is threadedly connected with positioning bolts 14, and the positioning bolts 14 facilitate fixedly connecting the connecting plate 10.

[0037] The working principle of the utility model is: when using, according to user demand, the lifting column 201 can be pulled to slide in the fixed column 1, so that it is slid to a suitable position, then the threaded column 202 is used to fix it, then the hydraulic rod 401 on one side is started, the hydraulic rod 401 is retracted and expanded and drives the fixed column 1 on the fixed joint 3 at the distal end to rotate on the left bearing 9, so that the handrail main body 5 on the fixed column 1 is angle-adjusted;

[0038] When the micro medical instrument is stored, the friction limiting block 603 on one side of the rotating shaft 604 can be rotated, so that the friction limiting block 603 is separated from the surface of the collection drawer 601, the collection drawer 601 is pushed out from the inside of the sliding groove under the reverse force provided by the two supporting springs 602 at the back, and medical staff can conveniently take the micro medical instrument.

[0039] The above describes one embodiment of the utility model in detail, but the content described can only be the preferred embodiment of the utility model and cannot be considered as limiting the implementation range of the utility model. Any equivalent change and improvement within the application range of the utility model should still belong to the patent coverage range of the utility model.

Claims

1. A multifunctional armrest of a dental chair comprising a fixed column (1), characterized in that: The inside of the fixed column (1) is slidably connected with a lifting mechanism (2), one side of the fixed column (1) is fixedly connected with a fixed joint (3), the surface of the fixed joint (3) is rotatably connected with an angle adjusting mechanism (4), the top of the lifting mechanism (2) is fixedly connected with a handrail main body (5), the inside of the handrail main body (5) is provided with a sliding groove, the inside of the sliding groove is slidably connected with a storage mechanism (6), The lifting mechanism (2) comprises a lifting column (201) slidably connected in the fixed column (1), and a threaded hole is formed in the surface of the lifting column (201) and the fixed column (1), wherein the inside of one of the threaded holes is threadedly connected with a threaded column (202); The angle adjusting mechanism (4) comprises a hydraulic rod (401) rotatably connected to the surface of the fixed joint (3), and the bottom of the hydraulic rod (401) is rotatably connected with a rotating joint (402); The storage mechanism (6) comprises a collection drawer (601) slidably connected in the sliding groove, the back of the collection drawer (601) is fixedly connected with two supporting springs (602), the surface of the collection drawer (601) is slidably connected with a friction limiting block (603), and the bottom of the friction limiting block (603) is rotatably connected with a rotating shaft (604).

2. A multifunctional armrest of a dental chair according to claim 1, characterized in that One side of the rotating shaft (604) is fixedly connected with a fixed block (7), and the fixed block (7) is fixedly connected to the bottom of the handrail main body (5).

3. A multifunctional armrest of a dental chair according to claim 1, characterized in that One side of the fixed column (1) is fixedly connected with a rotating column (8), and the end of the rotating column (8) is rotatably connected with a bearing (9).

4. A multifunctional armrest for dental chairs according to claim 3, characterized in that The back of the bearing (9) is fixedly connected with a connecting plate (10), and the connecting plate (10) is fixedly connected to the bottom of the rotating joint (402).

5. A multifunctional armrest of a dental chair according to claim 1, characterized in that, The surface of the handrail main body (5) is fixedly connected with a placing block (11), and the surface of the placing block (11) is provided with a PLC controller (12).

6. A multifunctional armrest for dental chairs according to claim 1, characterized in that, Both sides of the collection drawer (601) are fixedly connected with positioning blocks (13), and the positioning blocks (13) are slidably connected in the sliding groove.

7. A multifunctional armrest for dental chairs according to claim 4, characterized in that, Four threaded holes are formed in the surface of the connecting plate (10), and the inside of the threaded holes is threadedly connected with positioning bolts (14).

Citation Information

Patent Citations

  • Multifunctional armrest for dental chair

    CN217186882U