Switchable teaching mode dental chair system

Abstract

The utility model relates to medical instrument technical field especially is involved in a kind of dental chair system of switchable teaching mode, including treatment chair and teaching module, treatment chair includes main body and treatment backrest, main body includes cushion part and backrest part, and treatment backrest is detachably connected with backrest part;Teaching module can be installed on the backrest part after treatment backrest is disassembled;Teaching module includes human model piece and teaching backrest, and teaching backrest is detachably connected with backrest part, and human model piece is installed in the side of teaching backrest back to backrest part;Backrest part is installed treatment backrest and forms treatment mode, so that patient can directly lie on treatment chair and is treated, and teaching module is formed teaching mode after treatment backrest is removed and installed on backrest part, the utility model can realize that dental chair system can switch between treatment mode and teaching mode, satisfy the treatment and teaching needs of hospital or clinic etc. Teaching scene, without extra establishment teaching classroom, it is convenient to use.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a dental chair system with switchable teaching modes. Background Technology

[0002] Dental teaching systems are widely used in teaching. A typical teaching system requires the purchase of a complete set, including human models and treatment instruments, which is then placed in a specific teaching classroom. When a simulated teaching session is needed, students go to the teaching classroom to perform the simulated operation, thus providing students with a near-realistic dental treatment experience. However, this method is not suitable for all teaching scenarios, and the purchase of a complete teaching system is also quite expensive. Especially for some hospital teaching settings, it is often not appropriate to set up a separate teaching system and classroom, thus resulting in limitations of existing teaching systems. Utility Model Content

[0003] In view of this, the purpose of this application is to provide a dental chair system with switchable teaching modes to solve the problems of existing dental teaching systems requiring complete configuration, being unsuitable for teaching scenarios such as hospitals, and being expensive to configure.

[0004] This utility model provides a dental chair system with switchable teaching modes, including: A treatment chair includes a main body and a treatment backrest. The main body includes a seat cushion and a backrest, and the treatment backrest is detachably connected to the backrest. The teaching module can be installed on the backrest after the treatment backrest is disassembled; the teaching module includes a human body model and a teaching backrest, the teaching backrest is detachably connected to the backrest, and the human body model is installed on the side of the teaching backrest facing away from the backrest; The treatment backrest is installed on the backrest to form a treatment mode, and the teaching module is installed on the backrest to form a teaching mode.

[0005] Preferably, one of the backrest and the teaching backrest has a protruding snap-fit ​​portion, and the other has a snap-fit ​​groove into which the snap-fit ​​portion extends.

[0006] Preferably, in the direction perpendicular to the direction in which the snap-fit ​​part extends into the snap-fit ​​groove, one side of the snap-fit ​​groove is formed as a large opening side and the other side is formed as a small opening side, the opening size of the large opening side is larger than the opening size of the small opening side; after the snap-fit ​​part extends into the snap-fit ​​groove from the large opening side, it moves to the small opening side for fixation. Preferably, the human body model includes a shoulder model and a head model disposed above the shoulder model, the shoulder model being mounted on the teaching backrest and the head model being mounted on the shoulder model. Preferably, the teaching module further includes: A rotating component is disposed between the shoulder model and the head model, enabling the head model to rotate relative to the shoulder model; A locking component, which cooperates with the rotating component, is used to lock the rotation of the head model. Preferably, the rotating assembly includes: A connector, one end of which is fixedly connected to the shoulder model; A rotating component is connected to the other end of the connecting component; A rotating base is fixedly connected to the head model. The rotating base has a receiving cavity inside. The rotating component is installed in the receiving cavity. The rotating component can adjust the angle between the connecting component and the rotating base by rotating in the receiving cavity.

[0007] Preferably, the locking component includes: A first clamping member is installed on the rotating seat, and one end of the first clamping member extends into the receiving cavity and contacts the rotating member; The second clamping member is installed on the side of the first clamping member that faces away from the rotating member; An elastic element is installed between the first clamping element and the second clamping element; A fixing seat is fixedly connected to the head model. An adjustment cavity is formed inside the fixing seat, and the end of the second clamping member facing away from the elastic member extends into the adjustment cavity. The movable member has one end formed as an abutment portion that extends into the adjustment cavity and contacts the second pressing member, and the other end formed as an adjustment portion disposed outside the fixed base; rotating the adjustment portion changes the contact position between the abutment portion and the second pressing member, so that the movable member drives the second pressing member to move toward or away from the elastic member, thereby adjusting the force of the first pressing member pressing against the rotating member.

[0008] Preferably, the teaching module further includes: The teaching headrest is positioned above the teaching backrest; The fasteners are fixedly connected to the teaching headrest and the head model, respectively.

[0009] Preferably, the teaching backrest and the shoulder model are integrally formed; Alternatively, the teaching backrest and the shoulder model may be made of plastic. Preferably, the teaching module further includes: The mounting component is fixed to the teaching backrest, and part of the mounting component extends into the shoulder model; the mounting component has a connecting hole for the rotating component to extend into. A locking element is connected to the portion of the rotating assembly that passes through the connecting hole.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model discloses a dental chair system with switchable teaching modes. The treatment chair includes a main body and a treatment backrest. The main body includes a seat cushion and a backrest, and the treatment backrest and the backrest are detachably connected. A teaching module can be installed on the backrest after the treatment backrest is removed. The teaching module includes a human model and a teaching backrest, which is detachably connected to the backrest. The human model is installed on the side of the teaching backrest facing away from the backrest. The treatment backrest is installed on the backrest to form a treatment mode, allowing patients to lie directly on the treatment chair for treatment. The treatment backrest is removed and the teaching module is installed on the backrest to form a teaching mode. This allows the dental chair system to switch between treatment mode and teaching mode, meeting the treatment and teaching needs of teaching scenarios such as hospitals or clinics, without the need to build additional teaching classrooms, making it convenient to use and cost-effective.

[0011] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0012] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0013] Figure 1 A schematic diagram of the structure of a dental chair system with switchable teaching modes provided for an embodiment of this utility model; Figure 2 A schematic diagram of the dental chair system with switchable teaching modes provided for an embodiment of this utility model from another perspective; Figure 3 A schematic diagram of the structure of the teaching module detached from the treatment chair in the switchable teaching mode dental chair system provided in the embodiments of this utility model; Figure 4 An exploded view of the teaching module in a dental chair system with switchable teaching modes provided for an embodiment of this utility model; Figure 5 A structural cross-sectional view of the rotating component and locking component in a dental chair system with switchable teaching modes provided for an embodiment of this utility model; Figure 6 A schematic diagram of the assembly structure of the shoulder model and rotating component in a dental chair system with switchable teaching modes provided in an embodiment of this utility model.

[0014] Icons: 10-Therapy Chair; 11-Seat Cushion; 12-Backrest; 121-Snap-fit ​​Part; 20-Teaching Module; 21-Human Model Part; 211-Shoulder Model; 212-Head Model; 2121-Insert Slot; 22-Teaching Backrest; 2210-Snap-fit ​​Slot; 2211-Large Opening Side; 2212-Small Opening Side; 220-Rotating Assembly; 221-Connector; 222-Rotating Component; 22 3-Rotating seat; 2231-Receiving cavity; 23-Locking assembly; 231-First clamping member; 232-Second clamping member; 233-Elastic member; 234-Fixed seat; 2341-Adjusting cavity; 235-Moving member; 2351-Abutting part; 2352-Adjusting part; 24-Teaching headrest; 241-Back shell; 25-Fixed member; 26-Mounting member; 261-Communication hole; 27-Locking member. Detailed Implementation

[0015] The following detailed embodiments are provided to help the reader gain a comprehensive understanding of the methods, apparatus, and / or systems described herein. However, various changes, modifications, and equivalents of the methods, apparatus, and / or systems described herein will be apparent after understanding the disclosure of this application. For example, the order of operations described herein is merely illustrative and is not limited to the order set forth herein; changes that will be apparent after understanding the disclosure of this application are possible, except for operations that must occur in a specific order. Furthermore, for clarity and brevity, descriptions of features known in the art may be omitted.

[0016] The features described herein may be implemented in different forms and should not be construed as being limited to the examples described herein. Rather, the examples described herein have been provided merely to illustrate some of the many feasible ways of implementing the methods, apparatus, and / or systems described herein that will be apparent upon understanding the disclosure of this application.

[0017] Throughout the specification, when an element (such as a layer, region, or substrate) is described as being "on" another element, "connected to" another element, "bonded to" another element, "on" another element, or "covering" another element, it may be directly "on" another element, "connected to" another element, "bonded to" another element, "on" another element, or "covering" another element, or there may be one or more other elements in between. In contrast, when an element is described as being "directly on" another element, "directly connected to" another element, "directly bonded to" another element, "directly on" another element, or "directly covering" another element, there may be no other elements in between.

[0018] As used herein, the term “and / or” includes any one of the relevant items listed and any combination of any two or more items.

[0019] Although terms such as “first,” “second,” and “third” may be used herein to describe individual components, assemblies, regions, layers, or parts, these components, assemblies, regions, layers, or parts are not limited by these terms. Rather, these terms are used only to distinguish one component, assembly, region, layer, or part from another. Therefore, without departing from the teachings of the examples described herein, the first component, assembly, region, layer, or part referred to as the second component, assembly, region, layer, or part may also be referred to as the second component, assembly, region, layer, or part.

[0020] For ease of description, spatial relation terms such as “above,” “upper,” “below,” and “lower” are used herein to describe the relationship between one element and another, as shown in the accompanying drawings. Such spatial relation terms are intended to include not only the orientation depicted in the drawings but also different orientations of the device during use or operation. For example, if the device in the drawings is flipped, an element described as being “above” or “upper” relative to another element will subsequently be “below” or “lower” relative to that other element. Therefore, the term “above” includes both “above” and “below” orientations depending on the spatial orientation of the device. The device may also be positioned in other ways (e.g., rotated 90 degrees or in other orientations), and the spatial relation terms used herein will be interpreted accordingly.

[0021] The terminology used herein is for the purpose of describing various examples only and is not intended to limit this disclosure. Unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. The terms “comprising,” “including,” and “having” enumerate the stated features, quantities, operations, components, elements, and / or combinations thereof, but do not exclude the presence or addition of one or more other features, quantities, operations, components, elements, and / or combinations thereof.

[0022] Variations in the shapes shown in the accompanying drawings may occur due to manufacturing techniques and / or tolerances. Therefore, the examples described herein are not limited to the specific shapes shown in the accompanying drawings, but include changes in shape that may occur during manufacturing.

[0023] The features of the examples described herein can be combined in various ways that will be apparent upon understanding the disclosure of this application. Furthermore, although the examples described herein have a wide variety of constructions, other constructions are possible, as will be apparent upon understanding the disclosure of this application.

[0024] According to the first aspect of this utility model, a dental chair system with switchable teaching modes is provided, which includes a treatment chair 10 and a teaching module 20.

[0025] The specific structure of the above-mentioned components of the dental chair system with switchable teaching modes according to this embodiment will be described below.

[0026] In this embodiment, as Figures 1 to 3 As shown, the treatment chair 10 includes a main body and a treatment backrest. The main body includes a seat cushion 11 and a backrest 12, and the treatment backrest is detachably connected to the backrest 12. The seat cushion 11 is used to support the patient's buttocks and / or legs, and the backrest 12 is used to support the patient's back. The seat cushion 11 and the backrest 12 are preferably rotatably connected, so that the angle between the seat cushion 11 and the backrest 12 can be adjusted for the patient to sit up or lie down.

[0027] like Figures 1 to 3 As shown, the teaching module 20 can be installed on the backrest 12 after the treatment backrest is removed. Specifically, the teaching module 20 includes a human model 21 and a teaching backrest 22. The teaching backrest 22 is detachably connected to the backrest 12. The human model 21 is installed on the side of the teaching backrest 22 facing away from the backrest 12 to simulate the posture of a patient sitting on the treatment chair 10. Installing the treatment backrest on the backrest 12 forms a treatment mode, allowing the patient to lie directly on the treatment chair 10 for treatment. Removing the treatment backrest and installing the teaching module 20 on the backrest 12 forms a teaching mode. This allows the dental chair system to switch between treatment and teaching modes, meeting the treatment and teaching needs of hospitals or clinics without requiring additional teaching classrooms, making it convenient to use. In addition, the number of treatment chairs 10 and teaching modules 20 can be configured according to needs. For example, the number of treatment chairs 10 and teaching modules 20 can be equal, or the number of treatment chairs 10 can be greater than the number of teaching modules 20, or the number of teaching modules 20 can be greater than the number of treatment chairs 10, thereby saving costs and meeting treatment and teaching needs.

[0028] In this embodiment, the dental chair system with switchable teaching modes also includes a tool tray, treatment instruments, oral lamps, etc., which are disposed on the side of the treatment chair 10 or on the treatment chair 10. The teaching mode and the treatment mode can share these devices such as the tool tray, treatment instruments, oral lamps, etc.

[0029] It should be noted that the structure of the treatment backrest is preferably the same as that of the teaching backrest 22, which facilitates the assembly and disassembly of the treatment backrest and the teaching backrest 22 from the backrest 12. Alternatively, the treatment backrest can also have other structures, as long as they can ensure that the patient's comfort is improved after the treatment backrest is installed.

[0030] In a preferred embodiment, such as Figure 3 and Figure 4 As shown, one of the backrest 12 and the teaching backrest 22 has a protruding snap-fit ​​portion 121, and the other of the backrest 12 and the teaching backrest 22 has a snap-fit ​​groove 2210 into which the snap-fit ​​portion 121 extends. For example, the backrest has a snap-fit ​​portion 121 protruding toward the teaching backrest 22, and the teaching backrest 22 has a recessed snap-fit ​​groove 2210. In this case, the treatment backrest also has a corresponding snap-fit ​​groove 2210. Alternatively, the teaching backrest 22 has a snap-fit ​​portion 121 protruding toward the teaching backrest 22, and the backrest has a recessed snap-fit ​​groove 2210. In this case, the treatment backrest also has a corresponding snap-fit ​​portion 121. In this way, the teaching backrest 22 and the backrest 12 are detachably connected by snap-fit, which is convenient to assemble and disassemble and is securely fixed.

[0031] Preferably, such as Figure 3 and Figure 4 As shown, multiple snap-fit ​​parts 121 are provided, and snap-fit ​​slots 2210 are provided one-to-one with snap-fit ​​parts 121, thereby improving the reliability and stability of the connection.

[0032] Furthermore, in this embodiment, as Figure 3 As shown, the snap-fit ​​portion 121 can be formed as a nail structure having a head and a rod; in the direction perpendicular to the snap-fit ​​portion 121 extending into the snap-fit ​​groove 2210, the head protrudes from the circumferential sidewall of the rod; along the direction of the snap-fit ​​portion 121 extending into the snap-fit ​​groove 2210, the head is located at the end of the rod facing the snap-fit ​​groove 2210. Figure 4 As shown, in the direction perpendicular to the insertion of the snap-fit ​​part 121 into the snap-fit ​​groove 2210, one side of the snap-fit ​​groove 2210 is formed as a large-mouth side 2211, and the other side is formed as a small-mouth side 2212. The opening size of the large-mouth side 2211 is larger than the opening size of the small-mouth side 2212. The snap-fit ​​groove 2210 can be formed into a gourd-shaped groove structure. After the snap-fit ​​part 121 extends from the large-mouth side 2211 into the snap-fit ​​groove 2210, it moves to the small-mouth side 2212 for fixation. It is easy to assemble and disassemble and the fixation is reliable. The large-mouth side 2211 allows the head to extend into the snap-fit ​​groove 2210, and the small-mouth side 2212 has a small opening size, so it can limit the head and prevent the snap-fit ​​part 121 from falling out of the snap-fit ​​groove 2210. Preferably, the small-mouth side 2212 is located above the large-mouth side 2211 to ensure a firm snap-fit.

[0033] In this embodiment, as Figures 1 to 4As shown, the human body model 21 includes a shoulder model 211 and a head model 212 disposed above the shoulder model 211. The shoulder model 211 is installed on the teaching backrest 22 to fix the human body model 21 to the teaching backrest 22. The shoulder model 211 can be installed on the teaching backrest 22 by means of nails, etc., or it can be fixedly connected by means of buckles, adhesives, etc., or the shoulder model 211 and the teaching backrest 22 can be integrally formed, as long as the shoulder model 211 is fixed relative to the teaching backrest 22. The head model 212 is installed on the shoulder model 211, and the head model 212 simulates the situation when the patient's mouth is open. In a preferred embodiment, the head model 212 and the shoulder model 211 are rotatably connected, which can simulate the posture of the patient's head at different angles. Specifically, as shown... Figure 2 and Figure 4 As shown, the teaching module 20 also includes a rotation component 220 and a locking component 23. The rotation component 220 is positioned between the shoulder model 211 and the head model 212, allowing the head model 212 to rotate relative to the shoulder model 211. The locking component 23 works in conjunction with the rotation component 220 to lock the rotation of the head model 212, thus ensuring the smooth progress of the teaching simulation. Furthermore, in this embodiment, as Figure 4 and Figure 5 As shown, the rotating assembly 220 includes a connector 221, a rotating member 222, and a rotating seat 223. The connector 221 forms a strip-shaped rod structure. One end of the connector 221 is fixedly connected to the shoulder model 211, and the other end of the connector 221 is connected to the rotating member 222. The rotating member 222 is preferably formed as a spherical structure to increase the rotation range. The rotating seat 223 is fixedly connected to the head model 212. The interior of the rotating seat 223 forms a receiving cavity 2231. The rotating member 222 is installed in the receiving cavity 2231 and rotates in the receiving cavity 2231. The connector 221 rotates together with the rotating member 222, thereby adjusting the angle between the connector 221 and the rotating seat 223, and thus adjusting the angle between the head model 212 and the shoulder model 211 to simulate the posture of the patient's head at different angles. After the angle adjustment is completed, the positional relationship between the rotating member 222 and the rotating seat 223 is locked by the locking assembly 23 to fix the head model.

[0034] Furthermore, in this embodiment, as Figure 4 and Figure 5As shown, the locking assembly 23 includes a first clamping member 231, a second clamping member 232, an elastic member 233, a fixed base 234, and a movable member 235. The elastic member 233 is a telescopic spring. The first clamping member 231 is formed as a block structure and is installed on the rotating base 223. One end of the first clamping member 231 extends into the receiving cavity 2231 and contacts the rotating member 222. The second clamping member 232 is formed as a block structure and is installed on the side of the first clamping member 231 facing away from the rotating member 222. The second clamping member 232 and the first clamping member 231 are spaced apart, so that the elastic member 233 is installed between the first clamping member 231 and the second clamping member 232. The fixed base 234 is fixedly connected to the head model 212. An adjustment cavity 2341 is formed inside the fixed base 234. The end of the second clamping member 232 facing away from the elastic member 233 extends into the adjustment cavity 2341, so that the movable member 235 can contact the second clamping member 232.

[0035] like Figure 5 As shown, one end of the movable member 235 is formed as an abutment portion 2351 that extends into the adjustment cavity 2341 and contacts the second clamping member 232. The abutment portion 2351 can be formed as a D-shaped shaft, an eccentric wheel, or a cam shape, so that the rotation axis of the abutment portion 2351 and the distance between the abutment portion 2351 and the contact position of the second clamping member 232 change during the rotation of the movable member 235. Figure 3 As shown, the other end of the movable member 235 is formed as an adjustment part 2352 disposed outside the fixed base 234. The adjustment part 2352 is formed as a rod-shaped structure and is preferably set at an angle to the rotation axis of the abutment part 2351 to form a handle structure for easy application of force. Rotating the adjustment part 2352 changes the contact position between the abutment part 2351 and the second pressing member 232, so that the movable member 235 drives the second pressing member 232 to move toward or away from the elastic member 233, so as to adjust the force of the first pressing member 231 pressing against the rotating member 222. Specifically, when the movable member 235 drives the second pressing member 232 to move toward the direction closer to the elastic member 233, the elastic member 233 is squeezed, and the force of the first pressing member 231 pressing against the rotating member 222 increases. This increases the friction between the rotating member 222 and the rotating seat 223, thereby achieving locking and preventing the rotating member 222 from rotating in the receiving cavity 2231. When the movable member 235 drives the second pressing member 232 to move away from the elastic member 233, the elastic member 233 resets, allowing the rotating member 222 to rotate in the receiving cavity 2231.

[0036] Furthermore, in this embodiment, such as Figures 1 to 4As shown, the teaching module 20 also includes a teaching headrest 24 positioned above the teaching backrest 22 and a fixing member 25 fixedly connected to the teaching headrest 24 and the head model 212 respectively, thus simulating a patient's head resting on the headrest. Specifically, the fixing member 25 is formed as a frame structure, and both the teaching headrest 24 and the head model 212 can be mounted on the fixing member 25 using nails. More specifically, as... Figure 4 As shown, the teaching pillow has a back cover 241 on the side facing away from the head model 212, and the fastener 25 can be installed on the back cover 241 using nails. An insertion slot 2121 is opened on the back of the head model 212, and the fastener 25 is inserted into the fastening slot and then fixed on the head model 212 by nails.

[0037] In an optional embodiment, the teaching backrest 22 and the shoulder model 211 are integrally molded, for example, made of plastic or foam material, to save assembly steps and improve assembly efficiency. Optionally, the teaching backrest 22 and the shoulder model 211 are plastic parts to reduce the weight of the teaching module 20, facilitate handling, and reduce manufacturing costs. Furthermore, in this embodiment, as Figure 4 and Figure 6 As shown, the teaching module 20 also includes a mounting component 26 and a locking component 27. The mounting component 26 is fixed to the teaching backrest 22, for example, by a nail structure. Part of the mounting component 26 extends into the shoulder model 211, thereby improving the structural strength of the teaching backrest 22 and the shoulder model 211, and thus improving the stability of the head model 212. Preferably, the mounting component 26 is formed as a metal part, thus providing reliable support for the teaching backrest 22 and the shoulder model 211. The mounting component 26 can be formed as a frame structure, and a connecting hole 261 for the rotating component 220 to extend into is provided on the mounting component 26. The connecting hole 261 is formed as a through hole structure. Preferably, the connecting hole 261 is provided on the part of the mounting component 26 that extends into the shoulder model 211. The locking component 27 is connected to the part of the rotating component 220 that passes through the connecting hole 261, thus fixing the rotating component 220 to the shoulder model 211.

[0038] Specifically, such as Figure 4 and Figure 6 As shown, the locking member 27 is assembled with the connecting member 221 as described above to fix the rotating component 220 and the shoulder model 211. The circumferential sidewall of the end of the connecting member 221 away from the rotating member 222 has a protruding limiting structure to abut against the surface of the mounting member 26 facing away from the locking member 27, so as to limit the length of the connecting member 221 extending out of the communicating hole 261, and to limit the connection member 221 and the mounting member 26 before the locking member 27 is assembled.

[0039] More specifically, the locking member 27 is formed as a nut structure, and the part of the rotating assembly 220 passing through the connecting hole 261 is formed with an external thread that engages with the locking member 27, thus achieving a locking and fixed connection.

[0040] According to this utility model, a dental chair system with switchable teaching modes includes a main body and a treatment backrest. The main body includes a seat cushion and a backrest, and the treatment backrest and the backrest are detachably connected. A teaching module can be installed on the backrest after the treatment backrest is removed. The teaching module includes a human model and a teaching backrest, which is detachably connected to the backrest. The human model is installed on the side of the teaching backrest facing away from the backrest. The treatment backrest is installed on the backrest to form a treatment mode, allowing the patient to lie directly on the treatment chair for treatment. The treatment backrest is removed and the teaching module is installed on the backrest to form a teaching mode. This allows the dental chair system to switch between treatment mode and teaching mode, meeting the treatment and teaching needs of teaching scenarios such as hospitals or clinics, without the need to build additional teaching classrooms, making it convenient to use and cost-effective.

[0041] Finally, it should be noted that the above-described embodiments are merely specific implementations of this application, used to illustrate the technical solutions of this application, and not to limit them. The protection scope of this application is not limited thereto. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that any person skilled in the art can still modify or easily conceive of changes to the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features, within the technical scope disclosed in this application. Such modifications, changes, 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 application, and should all be covered within the protection scope of this application. Therefore, the protection scope of this application should be determined by the protection scope of the claims.

Claims

1. A dental chair system with switchable teaching modes, characterized in that, include: A treatment chair includes a main body and a treatment backrest. The main body includes a seat cushion and a backrest, and the treatment backrest is detachably connected to the backrest. The teaching module can be installed on the backrest after the treatment backrest is disassembled; the teaching module includes a human body model and a teaching backrest, the teaching backrest is detachably connected to the backrest, and the human body model is installed on the side of the teaching backrest facing away from the backrest; The treatment backrest is installed on the backrest to form a treatment mode, and the teaching module is installed on the backrest to form a teaching mode.

2. The dental chair system with switchable teaching modes according to claim 1, characterized in that, One of the backrest and the teaching backrest has a protruding snap-fit ​​part, and the other has a snap-fit ​​groove into which the snap-fit ​​part extends.

3. The dental chair system with switchable teaching modes according to claim 2, characterized in that, In the direction perpendicular to the direction in which the snap-fit ​​part extends into the snap-fit ​​groove, one side of the snap-fit ​​groove is formed as a large opening side and the other side is formed as a small opening side. The opening size of the large opening side is larger than the opening size of the small opening side. After the snap-fit ​​part extends into the snap-fit ​​groove from the large opening side, it moves to the small opening side for fixation.

4. The dental chair system with switchable teaching modes according to claim 1, characterized in that, The human body model includes a shoulder model and a head model disposed above the shoulder model. The shoulder model is mounted on the teaching backrest, and the head model is mounted on the shoulder model.

5. The dental chair system with switchable teaching modes according to claim 4, characterized in that, The teaching module also includes: A rotating component is disposed between the shoulder model and the head model, enabling the head model to rotate relative to the shoulder model; A locking component, which cooperates with the rotating component, is used to lock the rotation of the head model.

6. The dental chair system with switchable teaching modes according to claim 5, characterized in that, The rotating assembly includes: A connector, one end of which is fixedly connected to the shoulder model; A rotating component is connected to the other end of the connecting component; A rotating base is fixedly connected to the head model. The rotating base has a receiving cavity inside. The rotating component is installed in the receiving cavity. The rotating component can adjust the angle between the connecting component and the rotating base by rotating in the receiving cavity.

7. The dental chair system with switchable teaching modes according to claim 6, characterized in that, The locking component includes: A first clamping member is installed on the rotating seat, and one end of the first clamping member extends into the receiving cavity and contacts the rotating member; The second clamping member is installed on the side of the first clamping member that faces away from the rotating member; An elastic element is installed between the first clamping element and the second clamping element; A fixing seat is fixedly connected to the head model. An adjustment cavity is formed inside the fixing seat, and the end of the second clamping member facing away from the elastic member extends into the adjustment cavity. The movable member has one end formed as an abutment portion that extends into the adjustment cavity and contacts the second pressing member, and the other end formed as an adjustment portion disposed outside the fixed base; rotating the adjustment portion changes the contact position between the abutment portion and the second pressing member, so that the movable member drives the second pressing member to move toward or away from the elastic member, thereby adjusting the force of the first pressing member pressing against the rotating member.

8. The dental chair system with switchable teaching modes according to claim 4, characterized in that, The teaching module also includes: The teaching headrest is positioned above the teaching backrest; The fasteners are fixedly connected to the teaching headrest and the head model, respectively.

9. The dental chair system with switchable teaching modes according to claim 5, characterized in that, The teaching backrest and the shoulder model are integrally molded; Alternatively, the teaching backrest and the shoulder model may be made of plastic.

10. The dental chair system with switchable teaching modes according to claim 9, characterized in that, The teaching module also includes: The mounting component is fixed to the teaching backrest, and part of the mounting component extends into the shoulder model; the mounting component has a connecting hole for the rotating component to extend into. A locking element is connected to the portion of the rotating assembly that passes through the connecting hole.

Images