Dental seat capable of automatically replacing protective pad

Abstract

The utility model relates to the technical field of dental seats, in particular to a dental seat with a protective pad capable of being replaced automatically, which comprises a seat body and a headrest arranged on the seat body, an embedded storage groove is arranged on the headrest, and a discharging roller and a receiving roller are arranged in the storage groove. A driving mechanism used for being in transmission connection with the discharging roller and the collecting roller is arranged on one side of the headrest and comprises a first gear and two sets of second gears which are meshed with each other, and the discharging roller and the collecting roller are in transmission connection with the two sets of second gears respectively. Due to the automatic design, the replacement process of the protective pad can be completed in a short time, the diagnosis and treatment interval time is greatly shortened, the working efficiency can be effectively improved, and the diagnosis and treatment process is optimized; the protection pad is automatically rolled, manual contact with the protection pad can be effectively avoided, pollution caused by human factors is reduced, the probability of cross infection is effectively reduced, and health and safety of a patient are guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of dental chair technology, and in particular to a dental chair with an automatically replaceable protective pad. Background Technology

[0002] During dental treatment, the patient's head usually needs to come into contact with the headrest of the dental chair. To ensure patient hygiene and comfort and prevent cross-infection, disposable protective pads are usually placed on the headrests and replaced after each patient's use.

[0003] Currently, the replacement of protective pads mainly relies on manual operation by medical staff, which is not only inefficient, but may also increase the risk of cross-infection during the replacement process. Utility Model Content

[0004] The purpose of this invention is to provide a dental chair with an automatically replaceable protective pad, in order to solve the technical problems of low replacement efficiency and cross-infection risk of dental chair protective pads in the prior art.

[0005] To solve the above problems, the present invention provides a dental chair with an automatically replaceable protective pad, which adopts the following technical solution: it includes a chair body and a headrest set on the chair body. The headrest is provided with an embedded storage groove, and a feeding roller and a receiving roller are provided in the storage groove. A drive mechanism for drivingly connecting with the feeding roller and the receiving roller is provided on one side of the headrest. The drive mechanism includes a first gear and a second gear that mesh with each other. The second gear includes two sets. The feeding roller and the receiving roller are respectively drivenly connected to one set of the second gear.

[0006] Furthermore, the feeding roller and the receiving roller are arranged side by side, and the two sets of second gears are located on both sides of the first gear and are symmetrically distributed about the horizontal central axis of the first gear.

[0007] Furthermore, the second gear is linked to a drive shaft, and the end of the feeding roller and the receiving roller facing the drive shaft is provided with a first mounting groove, and the drive shaft and the first mounting groove can be detachably inserted and connected.

[0008] Furthermore, an elastic element is provided in the first mounting groove, and the elastic element abuts against the bottom of the first mounting groove and the side end face of the drive shaft.

[0009] Furthermore, the end of the feed roller and the take-up roller away from the drive shaft is provided with a limiting component. The limiting component includes a mounting shaft and a bearing. The bearing is sleeved on the outer wall of the mounting shaft. The end of the feed roller and the take-up roller away from the drive shaft is provided with a second mounting groove. The mounting shaft is inserted into the second mounting groove so that the feed roller and the take-up roller can be rotatably mounted on the headrest through the mounting shaft and the bearing.

[0010] Furthermore, a first magnet is provided at the bottom of the second mounting groove, and a second magnet that is magnetically attracted to the first magnet is provided on the side end face of the mounting shaft.

[0011] Furthermore, the outer wall of the mounting shaft is provided with a limiting groove, and an elastic limiting pin is provided in the limiting groove. The inner wall of the second mounting groove is provided with a groove that engages with the elastic limiting pin.

[0012] Furthermore, the cross-section of the groove is set as an arc-shaped structure, and the top end face of the elastic limiting pin is set as a hemispherical structure that matches the groove.

[0013] Furthermore, a fixing frame is provided inside the receiving trough, and the bearing is installed on the fixing frame. The fixing frame includes two sets, which are respectively fixed to the beginning and end of the feeding roller and the receiving roller.

[0014] The beneficial effects of the dental chair with an automatically replaceable protective pad provided by this utility model are:

[0015] 1. The automated design allows the replacement of the protective pad to be completed in a short time, greatly shortening the time between treatments, effectively improving work efficiency and optimizing the treatment process;

[0016] 2. The use of automation to roll up the protective pad effectively avoids manual contact with the pad, reduces contamination caused by human factors, effectively lowers the probability of cross-infection, and protects the health and safety of patients;

[0017] 3. The feeding roller and receiving roller are detachably plugged into the drive shaft. The mounting shaft and the second mounting groove are stably installed through a magnetic attraction structure and the cooperation of the elastic limit pin and the groove. This makes the installation and disassembly of components such as the feeding roller, receiving roller and mounting shaft more convenient, effectively reducing maintenance difficulty and cost, and thus effectively improving the stability and reliability of the dental chair. Attached Figure Description

[0018] The above and other objects, features, and advantages of exemplary embodiments of the present invention will become readily understood by reading the following detailed description with reference to the accompanying drawings. In the drawings, several embodiments of the present invention are shown by way of example and not limitation, and like or corresponding reference numerals denote like or corresponding parts, wherein:

[0019] Figure 1 This is a three-dimensional structural diagram of a dental chair with an automatically replaceable protective pad according to the present invention.

[0020] Figure 2 This is a partial cross-sectional view of a dental chair with an automatically replaceable protective pad according to the present invention.

[0021] Figure 3 for Figure 2 A magnified schematic diagram of the structure at point A in the middle.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1. Seat body; 2. Headrest; 21. Storage slot; 3. Feeding roller; 4. Receiving roller; 41. First mounting slot; 411. Elastic element; 42. Second mounting slot; 421. First magnet; 422. Groove; 5. Drive mechanism; 51. First gear; 511. Drive motor; 52. Second gear; 521. Transmission shaft; 6. Limiting assembly; 61. Mounting shaft; 611. Second magnet; 612. Limiting groove; 6121. Elastic limiting pin; 62. Bearing; 7. Fixing frame. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Those skilled in the art should understand that the embodiments described below are only some, not all, of the embodiments disclosed. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0025] The number of any elements in the accompanying drawings is for illustrative purposes only and not as a limitation, and any naming is for distinction only and has no limiting meaning.

[0026] The principles and spirit of this utility model will be explained in detail below with reference to several representative embodiments.

[0027] This utility model provides a dental chair with an automatically replaceable protective pad, such as Figures 1 to 3 As shown, the device includes a seat body 1 and a headrest 2 mounted on the seat body 1. The headrest 2 has an embedded storage groove 21, and a feeding roller 3 and a receiving roller 4 are installed in the storage groove 21. The embedded design of the storage groove 21 not only makes the whole device more concise and beautiful in appearance, but also effectively protects the internal components and avoids interference and damage from external factors.

[0028] In this embodiment, the protective pad can be made of various forms such as disposable paper, disposable non-woven fabric, and disposable plastic, such as pure wood pulp paper, coated paper, spunlace non-woven fabric, and polyethylene (PE) film. When in use, the protective pad covers the side of the headrest 2 away from the storage groove 21.

[0029] In this embodiment, the feeding roller 3 and the receiving roller 4 are arranged side by side, which makes the transmission path of the protective pad smoother and reduces the resistance during the transmission process.

[0030] In this embodiment, a drive mechanism 5 is provided on one side of the headrest 2 for transmission connection with the feeding roller 3 and the receiving roller 4. The drive mechanism 5 includes a first gear 51 and a second gear 52 that mesh with each other. The second gear 52 includes two sets, and the feeding roller 3 and the receiving roller 4 are respectively transmissionally connected to one set of the second gear 52. In this embodiment, the first gear 51 is linked to the drive motor 511. When the drive motor 511 is started, the first gear 51 acts as the driving gear, driving the two sets of second gears 52 to rotate synchronously, thereby driving the feeding roller 3 and the receiving roller 4 to work respectively.

[0031] In this embodiment, the two sets of second gears 52 are located on both sides of the first gear 51 and are symmetrically distributed about the horizontal central axis of the first gear 51, which ensures that the feeding roller 3 and the receiving roller 4 can rotate synchronously at the same speed and direction, thereby realizing the smooth replacement of the protective pad.

[0032] In this embodiment, the second gear 52 is linked to the drive shaft 521, which plays a crucial role in transmitting the power of the second gear 52 to the feeding roller 3 and the receiving roller 4. Both the feeding roller 3 and the receiving roller 4 have a first mounting groove 41 at the end facing the drive shaft 521. The drive shaft 521 is detachably inserted into the first mounting groove 41, making the installation and removal of the feeding roller 3 and the receiving roller 4 very convenient. Operators can easily remove the feeding roller 3 and the receiving roller 4 from the drive shaft 521 for protective pad replacement or equipment maintenance. During installation, simply align the drive shaft 521 with the first mounting groove 41 and insert it; the operation is simple and quick.

[0033] In this embodiment, an elastic element 411 is provided in the first mounting groove 41, and the elastic element 411 abuts against the bottom of the first mounting groove 41 and the side end face of the drive shaft 521. The presence of the elastic element 411 provides a certain elastic pressure between the drive shaft 521 and the feeding roller 3 and the receiving roller 4, making the connection between them tighter and facilitating disassembly and assembly. At the same time, when the drive shaft 521 rotates, the elastic element 411 can effectively reduce vibration and loosening during the transmission process, ensuring that power can be transmitted stably, thereby ensuring the normal operation of the feeding roller 3 and the receiving roller 4.

[0034] In this embodiment, a limiting component 6 is provided at the end of the feeding roller 3 and the receiving roller 4 away from the drive shaft 521. The limiting component 6 includes a mounting shaft 61 and a bearing 62. The bearing 62 is sleeved on the outer wall of the mounting shaft 61, so that the feeding roller 3 and the receiving roller 4 can rotate around the mounting shaft 61 as the axis.

[0035] In this embodiment, the end of the feeding roller 3 and the receiving roller 4 away from the drive shaft 521 is provided with a second mounting groove 42. The mounting shaft 61 is inserted into the second mounting groove 42 so that the feeding roller 3 and the receiving roller 4 can be rotatably mounted on the headrest 2 through the mounting shaft 61 and the bearing 62, ensuring that the feeding roller 3 and the receiving roller 4 remain stable during rotation and avoiding shaking or displacement.

[0036] To further improve the stability and convenience of installation, in this embodiment, a first magnet 421 is provided at the bottom of the second mounting groove 42, and a second magnet 611, which is magnetically attracted to the first magnet 421, is provided on the side end face of the mounting shaft 61. When the mounting shaft 61 is inserted into the second mounting groove 42, the first magnet 421 and the second magnet 611 attract each other, enabling the mounting shaft 61 to be quickly and accurately positioned and fixed in the second mounting groove 42. This magnetic attraction structure not only simplifies the installation process and reduces installation time, but also absorbs vibration to a certain extent, improving the stability of the entire device.

[0037] In this embodiment, a limiting groove 612 is provided on the outer wall of the mounting shaft 61, and an elastic limiting pin 6121 is provided in the limiting groove 612. The inner wall of the second mounting groove 42 is provided with a groove 422 that engages with the elastic limiting pin 6121. When the mounting shaft 61 is inserted into the second mounting groove 42, the elastic limiting pin 6121 will be compressed by the inner wall of the second mounting groove 42 and shrink. When the mounting shaft 61 continues to be inserted until the elastic limiting pin 6121 is in the corresponding position with the groove 422, the elastic limiting pin 6121 will pop out under its own elastic force and embed into the groove 422, thereby achieving further limiting of the mounting shaft 61. This effectively prevents the mounting shaft 61 from moving axially during rotation and ensures the stable rotation of the feeding roller 3 and the receiving roller 4.

[0038] In this embodiment, the cross-section of the groove 422 is set as an arc-shaped structure, and the top end face of the elastic limiting pin 6121 is set as a hemispherical structure that matches the groove 422. This makes the elastic limiting pin 6121 more smoothly inserted into and removed from the groove 422, reducing resistance during installation and disassembly. At the same time, the arc-shaped and hemispherical structures can disperse stress, reduce wear on components, and improve the service life of the equipment.

[0039] In this embodiment, a fixing frame 7 is provided inside the receiving groove 21, and a bearing 62 is mounted on the fixing frame 7. The fixing frame 7 includes two sets, which are respectively fixed to the beginning and end ends of the feeding roller 3 and the receiving roller 4. In this embodiment, the main function of the fixing frame 7 is to support and fix the feeding roller 3 and the receiving roller 4, ensuring their stability during rotation. By mounting the bearing 62 on the fixing frame 7, the feeding roller 3 and the receiving roller 4 can rotate smoothly via the bearing 62, ensuring the normal operation of the entire protective pad replacement device.

[0040] This invention provides a dental chair with an automatically replaceable protective pad. When the protective pad needs to be replaced, a drive motor 511 connected to a first gear 51 is activated. The drive motor 511 drives the first gear 51 to rotate, and the first gear 51, through gear meshing, drives two sets of second gears 52 to rotate synchronously. Since the second gears 52 are respectively connected to the feed roller 3 and the take-up roller 4, the feed roller 3 and the take-up roller 4 will start rotating synchronously. When the feed roller 3 rotates, the unused protective pad wrapped around it is gradually pulled out; when the take-up roller 4 rotates, the used protective pad is wound onto the take-up roller 4. With the continuous rotation of the feed roller 3 and the take-up roller 4, the protective pad completes the automatic replacement process, providing a clean and hygienic environment for the next patient.

[0041] Based on the above description in this specification, those skilled in the art will also understand that the following terms used, such as "upper," "lower," "front," "rear," "left," "right," "width," "horizontal," "top," "bottom," "inner," and "outer," are terms indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings of this specification. They are only for the purpose of facilitating the explanation of the present invention and simplifying the description, and do not explicitly or implicitly suggest that the device or element involved must have the specific orientation, or be constructed and operated in a specific orientation. Therefore, the above-mentioned orientation or positional relationship terms should not be understood or interpreted as limitations on the present invention.

[0042] In addition, in the description of this specification, "multiple" means at least two, such as two, three or more, etc., unless otherwise expressly and specifically defined.

Claims

1. A dental chair with an automatically replaceable protective pad, characterized in that, The device includes a seat body and a headrest mounted on the seat body. The headrest has an embedded storage groove, in which a feeding roller and a receiving roller are installed. A drive mechanism is provided on one side of the headrest for driving the feeding roller and the receiving roller. The drive mechanism includes a first gear and a second gear that mesh with each other. The second gear includes two sets, and the feeding roller and the receiving roller are each driven by one set of the second gear.

2. A dental chair with an automatically replaceable protective pad according to claim 1, characterized in that, The feeding roller and the receiving roller are arranged side by side, and the two sets of second gears are located on both sides of the first gear and are symmetrically distributed about the horizontal central axis of the first gear.

3. A dental chair with an automatically replaceable protective pad according to claim 1, characterized in that, The second gear is linked to the drive shaft. The feeding roller and the receiving roller are each provided with a first mounting groove at the end facing the drive shaft. The drive shaft and the first mounting groove can be detachably inserted and connected.

4. A dental chair with an automatically replaceable protective pad according to claim 3, characterized in that, An elastic element is provided in the first mounting groove, and the elastic element abuts against the bottom of the first mounting groove and the side end face of the drive shaft.

5. A dental chair with an automatically replaceable protective pad according to claim 3, characterized in that, Both the feeding roller and the receiving roller are provided with a limiting component at the end away from the drive shaft. The limiting component includes a mounting shaft and a bearing. The bearing is sleeved on the outer wall of the mounting shaft. Both the feeding roller and the receiving roller are provided with a second mounting groove at the end away from the drive shaft. The mounting shaft is inserted into the second mounting groove so that the feeding roller and the receiving roller can be rotatably mounted on the headrest through the mounting shaft and the bearing.

6. A dental chair with an automatically replaceable protective pad according to claim 5, characterized in that, The bottom of the second mounting groove is provided with a first magnet, and the side end face of the mounting shaft is provided with a second magnet that is magnetically attracted to the first magnet.

7. A dental chair with an automatically replaceable protective pad according to claim 5, characterized in that, The outer wall of the mounting shaft is provided with a limiting groove, and an elastic limiting pin is provided in the limiting groove. The inner wall of the second mounting groove is provided with a groove that fits into the elastic limiting pin.

8. A dental chair with an automatically replaceable protective pad according to claim 7, characterized in that, The cross-section of the groove is set as an arc-shaped structure, and the top end face of the elastic limiting pin is set as a hemispherical structure that matches the groove.

9. A dental chair with an automatically replaceable protective pad according to any one of claims 5 to 8, characterized in that, The receiving trough is equipped with a fixing frame, and the bearing is installed on the fixing frame. The fixing frame includes two sets, which are respectively fixed to the beginning and end of the feeding roller and the receiving roller.

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