A simulation head mold

Abstract

The utility model discloses a simulation head mould. The simulation head mould includes: base, face, the cavity unit between the upper face and the lower jaw part, the face installation mechanism that sets up respectively in the upper face, the lower jaw part and the base between, the oral cavity unit installation mechanism that sets up between the base with the oral cavity unit, the face includes separable upper face and lower jaw part, and the face and lower jaw part cover the upper portion and lower portion mounting area of base respectively, the oral cavity unit installation mechanism is used for guiding the oral cavity unit along the predetermined path installation positioning. In the simulation head mould provided by the application, the upper face and the lower jaw part are detachably connected with the base through the face installation mechanism, and the oral cavity unit is detachably connected with the base through the oral cavity installation mechanism, so that the installation and replacement operation of the dental mould are convenient and the installation precision is not affected when the dental mould in the oral cavity unit is replaced without using screws or glue.

Description

Technical Field

[0001] This utility model relates to the field of head model technology, specifically a simulated head model. Background Technology

[0002] In the field of oral medicine education and practice, simulated dental head models are widely used as an important teaching aid in teaching oral treatment techniques, simulating surgical procedures, and training in the fabrication of dental prostheses. However, existing simulated dental head models have significant shortcomings in terms of the installation and replacement of dental models, limiting their flexibility and efficiency in professional training.

[0003] Traditional dental head molds typically rely on fixing methods such as screws or glue when installing dental molds. While screw fixing provides high stability, changing the mold requires loosening each screw individually with tools, a tedious and time-consuming process, especially inefficient when frequent changes are needed. Furthermore, repeated use of screws can cause thread wear, affecting the fixing effect and potentially reducing the overall lifespan of the dental head mold over time.

[0004] On the other hand, while adhesive bonding offers convenience in the initial installation stage, it can damage the head model or dental model when changing dental molds. Adhesive residue can also directly affect the installation accuracy of the new dental mold, reducing the subsequent user experience. This limits the application potential of simulated head models in diverse teaching scenarios. Utility Model Content

[0005] This application provides a simulated head model, solving the problems of inconvenience caused by screw fastening and the negative impact of glue residue on the installation accuracy of the new dental model, thus reducing the user experience, when installing and replacing dental models in oral units using the simulated head model mentioned above. The specific solution is as follows:

[0006] A simulated head model, the simulated head model comprising:

[0007] The base provides the supporting structure and installation interface;

[0008] A face, covering one side of the base, the face including a separable upper face and a lower jaw, the upper face and the lower jaw respectively covering the upper and lower mounting areas of the base;

[0009] The oral cavity unit is located between the upper face and the lower jaw.

[0010] A facial mounting mechanism is respectively disposed between the upper face, the lower jaw and the base, for realizing the detachable connection between the upper face and the lower jaw and the base;

[0011] A dental unit installation mechanism is disposed between the base and the dental unit. The dental unit installation mechanism connects the dental unit and the base respectively and is used to guide the dental unit to be installed and positioned along a predetermined path.

[0012] Preferably, the base includes a vertically arranged support rod;

[0013] A connecting seat is provided on the support rod;

[0014] The connecting seat has a U-shaped structure with the opening facing the face. The two side walls of the connecting seat are arranged vertically and are respectively sleeved on the outside of the support rod.

[0015] The facial mounting mechanism is located at the ends of the two side walls of the connector and between the upper face and the lower jaw.

[0016] Preferably, the facial mounting mechanism includes an upper connecting component for connecting the upper face to the upper sidewall of the connecting seat, a lower connecting component for connecting the lower jaw to the lower sidewall of the connecting seat, a first fixing component for fixing the upper face, and a second fixing component for fixing the lower jaw.

[0017] The two ends of the upper connecting component are respectively connected to the bottom of the upper part and the side opposite to the upper sidewall of the connecting seat;

[0018] The two ends of the lower connecting assembly are respectively connected to the bottom of the lower jaw and the side opposite to the lower sidewall of the connecting seat;

[0019] The first fixing component is located at the top of the upper sidewall of the connector;

[0020] The second fixing component is located at the bottom of the connection between the lower connecting component and the lower side wall of the connecting seat.

[0021] Preferably, the second fixing component includes a plug block disposed at the bottom of the lower jaw and a lower mounting portion disposed on the lower side wall of the connector facing the lower jaw.

[0022] One end of the plug-in block is connected to the lower jaw, and the other end of the plug-in block faces the lower mounting portion. When the lower jaw is close to the lower mounting portion, the plug-in block is positioned parallel to the lower mounting portion below it.

[0023] The lower mounting part is rotatably connected to the end of the lower side wall of the connector facing the lower jaw, and rotates up and down along the connection.

[0024] Preferably, the second fixing component includes a locking seat and a locking rod disposed at the bottom of the lower mounting portion, and a limiting groove disposed on the side of the plug block facing the vertical slide groove;

[0025] The lock seat is correspondingly provided with the plug-in block, and a slot matching the plug-in block is provided on the side facing the plug-in block. The lock seat is installed at the bottom of the lower mounting part, and a vertical sliding groove is provided inside the lock seat.

[0026] The slot is connected to the top of the vertical slide.

[0027] The vertical slide groove is provided corresponding to the limiting groove, and an installation cavity is provided in the vertical slide groove along the extending direction;

[0028] A spring and a collar are provided inside the mounting cavity;

[0029] One end of the locking rod is slidably connected in a vertical groove, and the other end of the locking rod extends out of the groove and is located on the bottom outer side of the lock seat;

[0030] The collar is fixed to one end of the locking rod that is inserted into the mounting cavity, and the spring is located below the collar and is sleeved on the outside of the locking rod;

[0031] The plug block is inserted into the slot, and one end of the locking rod, which is slidably connected in the vertical groove, is inserted into the limiting groove of the plug block to form a snap-fit ​​engagement, thereby fixing the lower jaw.

[0032] Preferably, the upper connecting component includes a limiting trigger block and a positioning latch block disposed on the upper surface facing the support rod, and an upper mounting part disposed on the upper side wall of the connecting seat facing the upper surface.

[0033] The upper mounting part has a horizontal cross structure. One end of the upper mounting part is connected to the end of the upper side wall of the connecting seat, and the other end of the upper mounting part faces the upper surface. A first sliding groove is provided at the end of the upper mounting part facing the upper surface.

[0034] The positioning latch block is correspondingly provided with the upper mounting part. The positioning latch block has a hollow U-shaped structure with the opening facing the upper part. The ends of the two side walls of the positioning latch block are respectively connected to the upper part.

[0035] The limiting trigger block is located between the two side walls of the positioning latch block. One end of the limiting trigger block is connected to the upper part, and the other end of the limiting trigger block faces the bottom edge of the positioning latch block and is spaced apart from the positioning latch block.

[0036] A limiting block adapted to the first slide groove is provided at the center of the top side of the positioning block facing away from the upper part;

[0037] One end of the limiting block is connected to the positioning latch block, and the other end of the limiting block is inserted into the first sliding groove and slidably connected to the first sliding groove.

[0038] Preferably, the first fixing component includes a limiting component disposed at the top of the end of the upper mounting part connected to the support rod, and a vertical slot disposed at the end of the limiting block that is inserted into the first slide groove.

[0039] The limiting assembly includes a pull rod and, from bottom to top, a baffle, a compression spring, and a limiting plate;

[0040] The limiting plate is parallel to and spaced apart from the upper connecting wall of the connecting seat, and the limiting plate is installed on the side of the support rod facing the upper part;

[0041] The compression spring and the baffle are located between the limiting plate and the connecting seat, the compression spring is located above the baffle, and the two ends of the compression spring are respectively connected to the limiting plate and the baffle;

[0042] One end of the pull rod passes through the limiting plate and the compression spring in sequence and is connected to the baffle. The other end of the pull rod is located above the limiting plate, and the pull rod is movably connected to the limiting plate. The compression spring compresses the baffle and drives the pull rod to move downward to fix the upper part.

[0043] Preferably, the oral cavity unit includes a separately disposed dental mold sleeve and a dental mold body;

[0044] The dental mold body is installed inside the dental mold sleeve.

[0045] Preferably, the oral unit mounting mechanism includes a guide groove and a sliding member that cooperate with each other;

[0046] The guide groove includes a first slide groove corresponding to the upper connecting component and a second slide groove corresponding to the lower connecting component;

[0047] The sliding element includes a first sliding element and a second sliding element at the top and bottom of the dental mold sleeve, which are respectively provided with the first sliding groove and the second sliding groove.

[0048] The first slider and the second slider are respectively installed at the top and bottom of the oral cavity unit. The first slider and the second slider are slidably connected to the first slide groove and the second slide groove respectively to achieve positioning of the top and bottom of the dental mold sleeve.

[0049] The beneficial effects of this application are as follows:

[0050] The simulated head model provided in this application divides the face into separate upper and lower jaw parts. The upper and lower jaw parts are detachably connected to the base via a face mounting mechanism. The oral cavity unit is detachably connected to the base via an oral cavity unit mounting mechanism. This allows for the installation and replacement of the dental model in the oral cavity unit without the use of screws or glue. This solves the problems in the prior art where screw fastening is inconvenient when installing and replacing the dental model in the oral cavity unit, and glue adhesion can affect the installation accuracy of the new dental model due to glue residue, thus reducing the subsequent user experience.

[0051] Specifically, in this application, the simulated head mold has its upper face and lower jaw fixed by a first fixing component and a second fixing component, respectively. The dental mold sleeve is slidably connected to the first and second sliding grooves on the upper and lower mounting parts by a first sliding member and a second sliding member, respectively. This allows for quick disassembly and installation of the upper face and lower jaw by simply operating the first and second fixing components when changing the dental mold. Then, the first and second sliding members slide out of the first and second sliding grooves, respectively, making it easy to remove and insert the dental mold sleeve and dental mold body. This greatly simplifies the replacement process and saves time and manpower. Attached Figure Description

[0052] Figure 1 This is a schematic diagram of the overall front axonometric view of this utility model;

[0053] Figure 2 This is a schematic diagram of the overall rear-view axis of this utility model;

[0054] Figure 3 This is a schematic diagram of the connection structure between the facial and oral cavity units of this utility model;

[0055] Figure 4 This is a schematic diagram of the upper part of the present invention;

[0056] Figure 5 This is a schematic diagram of the lower jaw of this utility model;

[0057] Figure 6 This is a schematic diagram of the second fixing component of this utility model;

[0058] Figure 7 This is a schematic diagram of the oral cavity unit structure of this utility model.

[0059] In the diagram: 1. Head mold unit; 11. Support rod; 12. Connecting seat; 13. Upper mounting part; 131. First slide groove; 14. Upper part; 141. Snap-fit ​​block; 142. Limit trigger block; 143. Limit block; 15. First fixing component; 16. Lower mounting part; 161. Second slide groove; 17. Lower jaw; 171. Insertion block; 18. Second fixing component; 181. Lock seat; 182. Locking rod; 183. Collar; 184. Spring; 2. Oral cavity unit; 21. Dental mold sleeve; 22. Dental mold body; 23. First sliding member; 24. Second sliding member; 25. Pull rod; 26. Limiting plate; 27. Compression spring; 28. Baffle; 29. ​​Limiting groove. Detailed Implementation

[0060] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0061] like Figure 1 and 2 The illustrated simulation head model includes:

[0062] The base provides the supporting structure and installation interface;

[0063] The face covers one side of the base, and the face includes a separable upper face 14 and a lower jaw 17, which respectively cover the upper and lower mounting areas of the base.

[0064] The oral cavity unit is located between the upper face 14 and the lower jaw 17;

[0065] A facial mounting mechanism is respectively disposed between the upper face 14, the lower jaw 17 and the base, for realizing the detachable connection between the upper face 14 and the lower jaw 17 and the base respectively;

[0066] A dental unit installation mechanism is disposed between the base and the dental unit. The dental unit installation mechanism connects the dental unit and the base respectively and is used to guide the dental unit to be installed and positioned along a predetermined path.

[0067] Furthermore, the base includes a vertically arranged support rod;

[0068] A connecting seat 12 is provided on the support rod 11;

[0069] The connecting seat 12 has a U-shaped structure with the opening facing the face. The two side walls of the connecting seat 12 are arranged vertically and are respectively sleeved on the outside of the support rod 11.

[0070] The facial mounting mechanism is located at the ends of the two side walls of the connecting seat 12 and between the upper face 14 and the lower jaw 17.

[0071] Furthermore, the facial mounting mechanism includes an upper connecting component that connects the upper face to the upper sidewall of the connecting seat, a lower connecting component that connects the lower jaw 17 to the lower sidewall of the connecting seat, a first fixing component 15 for fixing the upper face, and a second fixing component 18 for fixing the lower jaw.

[0072] The two ends of the upper connecting component are respectively connected to the bottom of the upper part and the side opposite to the upper sidewall of the connecting seat;

[0073] The two ends of the lower connecting assembly are respectively connected to the bottom of the lower jaw and the side opposite to the lower sidewall of the connecting seat;

[0074] The first fixing component 15 is located at the top of the upper side wall of the connecting seat;

[0075] The second fixing component 18 is located at the bottom of the connection between the lower connecting component and the lower side wall of the connecting seat.

[0076] Furthermore, such as Figure 2 , 3 and Figure 5 As shown, the second fixing component includes a plug block 171 disposed at the bottom of the lower jaw and a lower mounting portion 16 disposed on the lower side wall of the connector facing the lower jaw.

[0077] One end of the plug-in block 171 is connected to the lower jaw, and the other end of the plug-in block 171 faces the lower mounting portion 16. When the lower jaw is close to the lower mounting portion 16, the plug-in block 171 is parallel to the lower mounting portion 16 below.

[0078] The lower mounting part 16 is rotatably connected to the end of the lower side wall of the connector facing the jaw part 17, and rotates up and down along the connection.

[0079] Furthermore, such as Figure 6 As shown, the second fixing component 18 includes a locking seat 181 and a locking rod 182 disposed at the bottom of the lower mounting portion 16, and a limiting groove disposed on the side of the plug block 171 facing the vertical slide groove.

[0080] The lock seat 181 is correspondingly provided with the plug-in block 171, and a slot matching the plug-in block 171 is provided on the side facing the plug-in block 171. The lock seat 181 is installed at the bottom of the lower mounting part 16, and a vertical sliding groove is provided inside the lock seat 181.

[0081] The slot is connected to the top of the vertical slide.

[0082] The vertical slide groove is provided corresponding to the limiting groove, and an installation cavity is provided in the vertical slide groove along the extending direction;

[0083] A spring 184 and a collar 183 are provided inside the mounting cavity;

[0084] One end of the locking rod 182 is slidably connected in a vertical groove, and the other end of the locking rod 182 extends out of the groove and is located on the bottom outer side of the lock seat 181;

[0085] The collar 183 is fixed to one end of the locking rod that is inserted into the mounting cavity, and the spring 184 is located below the collar 183 and is sleeved on the outside of the locking rod 182.

[0086] The plug-in block 171 is inserted into the slot, and the locking rod 182 is slidably connected to one end in the vertical slide groove and inserted into the limiting groove of the plug-in block 171 to form a snap-fit ​​engagement, thereby fixing the lower jaw 17.

[0087] Furthermore, such as Figure 4 As shown, the upper connecting assembly includes a limiting trigger block 142 and a positioning latching block 141 disposed on the side of the upper part 14 facing the support rod, and an upper mounting part 13 disposed on the upper side wall of the connecting seat facing the upper part 14.

[0088] The upper mounting part 13 has a horizontal cross structure. One end of the upper mounting part 13 is connected to the end of the upper side wall of the connecting seat 12, and the other end of the upper mounting part 13 faces the upper part 14. A first sliding groove 131 is provided at the end of the upper mounting part 13 facing the upper part 14.

[0089] The positioning latch block 141 is correspondingly provided with the upper mounting part 13. The positioning latch block 141 has a hollow U-shaped structure with the opening facing the upper part 14. The ends of the two side walls of the positioning latch block 141 are respectively connected to the upper part 14.

[0090] The limiting trigger block 142 is located between the two side walls of the positioning latch block 141. One end of the limiting trigger block 142 is connected to the upper part 14, and the other end of the limiting trigger block 142 faces the bottom edge of the positioning latch block 141 and is spaced apart from the positioning latch block 141.

[0091] A limiting block 143 adapted to the first slide groove 131 is provided at the center of the top of the positioning latch block 141 on the side opposite to the upper part 14.

[0092] One end of the limiting block 143 is connected to the positioning latch block 141, and the other end of the limiting block 143 is inserted into the first sliding groove 131 and slidably connected to the first sliding groove 131.

[0093] Furthermore, the first fixing component includes a limiting component disposed at the top of the end of the upper mounting part 13 connected to the support rod, and a vertical slot disposed at the end of the limiting block 143 that is inserted into the first slide groove 131.

[0094] The limiting assembly includes a pull rod 25 and a baffle 28, a compression spring 27 and a limiting plate 26 arranged sequentially from bottom to top;

[0095] The limiting plate 26 is arranged parallel to and spaced apart from the upper connecting wall of the connecting seat, and the limiting plate 26 is installed on the side of the support rod 11 facing the upper part 14;

[0096] The compression spring 27 and the baffle 28 are located between the limiting plate and the connecting seat. The compression spring is located above the baffle 28. The two ends of the compression spring 27 are respectively connected to the limiting plate 26 and the baffle 28.

[0097] One end of the pull rod passes through the limiting plate and the compression spring in sequence and is connected to the baffle. The other end of the pull rod is located above the limiting plate, and the pull rod is movably connected to the limiting plate. The compression spring compresses the baffle and drives the pull rod to move downward to fix the upper part 14.

[0098] Furthermore, such as Figure 7 As shown, the oral cavity unit includes a separately disposed dental mold sleeve 21 and a dental mold body 22;

[0099] The dental mold body 22 is installed inside the dental mold sleeve 21.

[0100] Furthermore, the oral unit mounting mechanism includes a guide groove and a sliding component that cooperate with each other;

[0101] The guide groove includes a first slide groove 131 corresponding to the upper connecting component and a second slide groove 161 corresponding to the lower connecting component;

[0102] The sliding element includes a first sliding element 23 and a second sliding element 24 at the top and bottom of the dental mold sleeve 21, which are respectively provided with the first sliding groove 131 and the second sliding groove 161;

[0103] The first sliding member 23 and the second sliding member 24 are respectively installed at the top and bottom of the oral cavity unit. The first sliding member 23 and the second sliding member 24 are slidably connected to the first slide groove 131 and the second slide groove 161 respectively, so as to realize the positioning of the top and bottom of the dental mold sleeve 21 respectively.

[0104] It should be noted that:

[0105] In this application, the support rod 11 and the connecting seat 12 serve as the base for supporting and mounting the face. The face is provided on the side of the connecting seat 12 facing away from the support rod 11. The face includes an upper face 14, an oral cavity unit, and a lower jaw 17 arranged sequentially from top to bottom, which constitute the facial structure of the entire simulated head model. The upper face 14 has a curved panel structure similar to the human face from the forehead to above the lips. The lower jaw 17 has the shape of the chin. The oral cavity unit is in the same position as the human lips.

[0106] The specific connection relationship is as follows:

[0107] The upper part 14 is mounted on the upper mounting part 13 on the upper side wall of the connecting seat 12, and the first fixing component 15 is used to fix the position of the upper part 14;

[0108] The lower mounting part 16 is located below the upper mounting part 13 and is rotatably connected to the lower side wall of the connecting seat 12; the lower jaw part 17 is mounted on the lower mounting part 16, and the second fixing component 18 is used to fix the position of the lower jaw part 17.

[0109] The dental mold sleeve 21 is slidably connected to the first sliding groove 131 and the second sliding groove 161 on the upper mounting part 13 and the lower mounting part 16 respectively via the first sliding member 23 and the second sliding member 24. This allows the upper face 14 and the lower jaw 17 to be quickly disassembled and installed by simply operating the upper connecting component and the lower connecting component when changing the dental mold. This makes it easy to take out and put in the dental mold sleeve 21 and the dental mold body 22, greatly simplifying the replacement process and saving time and manpower.

[0110] In one embodiment of this application, the first slider 23 and the second slider 24 are block structures adapted to the first slide groove and the second slide groove, respectively.

[0111] During installation,

[0112] First, slide the first sliding member 23 and the second sliding member 24 at the top and bottom of the dental mold sleeve 21 into the first sliding groove 131 and the second sliding groove 161 respectively. Then, attach the snap-fit ​​block 141 on the inner side of the upper part 14 onto the upper mounting part 13, while ensuring that the position of the limiting block 143 corresponds to the position of the first fixing component 15. The first fixing component 15 fixes the position of the limiting block 143. At this time, the limiting trigger block 142 abuts against and fixes the first sliding member 23.

[0113] For the lower jaw 17, the specific operation is as follows: pull the locking rod 182 so that the locking rod 182 and the collar 183 slide downward in the locking seat 181, while the spring 184 is compressed. When the locking rod 182 moves to the appropriate position, insert the plug block 171 at the bottom of the lower jaw 17 into the locking seat 181 so that the limiting groove 29 corresponds to the vertical sliding groove, and place the lower jaw 17 in place. Then release the locking rod 182. Under the elastic force of the spring 184, the locking rod 182 returns to its original position and inserts into the limiting groove 29, so that it locks the plug block 171, thereby fixing the lower jaw 17 onto the lower mounting part 16. This completes the installation of the entire oral cavity unit 2 on the head mold unit 1.

[0114] When changing the dental mold, reverse the above steps and operate the first fixing component 15 and the second fixing component 18 to quickly remove the upper face 14 and the lower jaw 17, then remove the old dental mold sleeve 21 and the dental mold body 22, put in the new dental mold sleeve 21 and the dental mold body 22, and then reinstall the upper face 14 and the lower jaw 17.

Claims

1. A simulated head model, characterized in that, The simulated head model includes: The base provides the supporting structure and installation interface; The face covers one side of the base, and the face includes a separable upper face (14) and a lower jaw (17), which respectively cover the upper and lower mounting areas of the base. The oral cavity unit is located between the upper face (14) and the lower jaw (17); A facial mounting mechanism is respectively disposed between the upper face (14), the lower jaw (17) and the base, for realizing the detachable connection between the upper face (14) and the lower jaw (17) and the base respectively; A dental unit installation mechanism is disposed between the base and the dental unit. The dental unit installation mechanism connects the dental unit and the base respectively and is used to guide the dental unit to be installed and positioned along a predetermined path.

2. The simulated head model according to claim 1, characterized in that, The base includes a vertically arranged support rod (11); A connecting seat (12) is provided on the support rod (11); The connecting seat (12) has a U-shaped structure with the opening facing the face. The two side walls of the connecting seat (12) are arranged vertically and vertically, and are respectively sleeved on the outside of the support rod (11). The facial mounting mechanism is located between the ends of the two side walls of the connecting seat (12) and the upper face (14) and lower jaw (17).

3. The simulated head model according to claim 2, characterized in that, The facial mounting mechanism includes an upper connecting component that connects the upper face (14) to the upper sidewall of the connecting seat, a lower connecting component that connects the lower jaw (17) to the lower sidewall of the connecting seat, a first fixing component (15) for fixing the upper face (14), and a second fixing component (18) for fixing the lower jaw (17). The two ends of the upper connecting component are respectively connected to the bottom of the upper part (14) and the side opposite to the upper sidewall of the connecting seat (12); The two ends of the lower connecting assembly are respectively connected to the bottom of the lower jaw (17) and the side opposite to the lower sidewall of the connecting seat (12); The first fixing component (15) is located at the top of the upper sidewall of the connecting seat (12); The second fixing component (18) is located at the bottom of the connection between the lower connecting component and the lower side wall of the connecting seat (12).

4. A simulated head model according to claim 3, characterized in that, The second fixing component includes a plug block (171) disposed at the bottom of the lower jaw (17) and a lower mounting part (16) disposed on the side of the lower sidewall of the connector (12) facing the lower jaw. One end of the plug-in block (171) is connected to the lower jaw, and the other end of the plug-in block (171) faces the lower mounting part (16). When the lower jaw is close to the lower mounting part (16), the plug-in block (171) is located parallel to the lower mounting part (16) below. The lower mounting part (16) is rotatably connected to the end of the lower side wall of the connector facing the jaw part (17), and rotates up and down along the connection.

5. A simulated head model according to claim 4, characterized in that, The second fixing component (18) also includes a lock seat (181) and a lock bar (182) disposed at the bottom of the lower mounting portion (16). The lock seat (181) is correspondingly provided with the plug-in block (171), and a slot matching the plug-in block (171) is provided on the side facing the plug-in block (171). The lock seat (181) is installed at the bottom of the lower mounting part (16), and a vertical sliding groove is provided inside the lock seat (181). The plug block (171) is provided with a limiting groove on the side facing the vertical slide groove; The slot is connected to the top of the vertical slide. The vertical slide groove is provided corresponding to the limiting groove, and an installation cavity is provided in the vertical slide groove along the extending direction; A spring (184) and a collar (183) are provided inside the mounting cavity; One end of the locking rod (182) is slidably connected in the vertical slide groove, and the other end of the locking rod (182) extends out of the vertical slide groove and is located on the bottom outside of the lock seat (181); The collar (183) is fixed to one end of the locking rod (182) that is inserted into the mounting cavity, and the spring (184) is located below the collar (183) and is sleeved on the outside of the locking rod (182). The plug-in block (171) is inserted into the slot, and the locking rod (182) is slidably connected to one end in the vertical groove and inserted into the limiting groove of the plug-in block (171) to form a snap-fit ​​engagement, thereby fixing the lower jaw (17).

6. A simulated head model according to claim 4, characterized in that, The upper connecting assembly includes a limiting trigger block (142) and a positioning latch block (141) disposed on the side of the upper part (14) facing the support rod, and an upper mounting part (13) disposed on the upper side wall of the connecting seat facing the upper part (14). The upper mounting part (13) has a horizontal cross structure. One end of the upper mounting part (13) is connected to the end of the upper side wall of the connecting seat (12), and the other end of the upper mounting part (13) faces the upper part (14). A first groove (131) is provided at the end of the upper mounting part (13) facing the upper part (14). The positioning latch block (141) is correspondingly provided with the upper mounting part (13). The positioning latch block (141) has a hollow U-shaped structure with the opening facing the upper part (14). The ends of the two side walls of the positioning latch block (141) are respectively connected to the upper part (14). The limiting trigger block (142) is located between the two side walls of the positioning latch block (141). One end of the limiting trigger block (142) is connected to the upper part (14), and the other end of the limiting trigger block (142) faces the bottom edge of the positioning latch block (141) and is spaced apart from the positioning latch block (141). The positioning block (141) has a limiting block (143) adapted to the first slide groove (131) at the center of the side of the top facing away from the upper part (14). One end of the limiting block (143) is connected to the positioning latch block (141), and the other end of the limiting block (143) is inserted into the first slide groove (131) and slidably connected to the first slide groove (131).

7. A simulated head model according to claim 6, characterized in that, The first fixing component includes a limiting component disposed at the top of the end of the upper mounting part (13) connected to the support rod, and a vertical slot disposed at the end of the limiting block (143) inserted into the first slide groove (131). The limiting assembly includes a pull rod (25) and a baffle (28), a compression spring (27), and a limiting plate (26) arranged sequentially from bottom to top; The limiting plate (26) is parallel to and spaced apart from the upper side wall of the connecting seat, and the limiting plate (26) is installed on the side of the pull rod (25) facing the upper part (14); The compression spring (27) and the baffle (28) are located between the limiting plate (26) and the connecting seat. The compression spring (27) is located above the baffle (28). The two ends of the compression spring (27) are respectively connected to the limiting plate (26) and the baffle (28). One end of the pull rod (25) passes through the limiting plate (26) and is connected to the compression spring and the baffle (28) in sequence. The other end of the pull rod (25) is located above the limiting plate (26). The pull rod (25) is movably connected to the limiting plate (26). The compression spring (27) compresses the baffle (28) and drives the pull rod (25) to move downward to fix the upper part.

8. A simulated head model according to claim 3, characterized in that, The oral cavity unit includes a separately configured dental mold sleeve (21) and a dental mold body (22); The dental mold body (22) is installed inside the dental mold sleeve (21).

9. A simulated head model according to claim 8, characterized in that, The dental unit mounting mechanism includes a guide groove and a sliding component that cooperate with each other; The guide groove includes a first slide groove (131) corresponding to the upper connecting component and a second slide groove (161) corresponding to the lower connecting component. The sliding member includes a first sliding member (23) and a second sliding member (24) located at the top and bottom of the dental mold sleeve (21) and corresponding to the first sliding groove (131) and the second sliding groove (161). The first sliding member (23) and the second sliding member (24) are respectively installed on the top and bottom of the oral cavity unit. The first sliding member (23) and the second sliding member (24) are slidably connected to the first slide groove (131) and the second slide groove (161) respectively, so as to realize the positioning of the top and bottom of the dental mold sleeve (21).

Images