CN218996212U - Oral cavity model angle adjustment mechanism - Google Patents

Abstract

The utility model discloses an angle adjusting mechanism of an oral cavity model, which is characterized by comprising a maxilla, a mandible, a tongue body, a toggle mechanism and a rotation limiting mechanism, wherein the maxilla is rotationally connected with the mandible, one end of the tongue body is fixed in the mandible, the other end of the tongue body is a free end, the toggle mechanism and the rotation limiting mechanism are both arranged between the maxilla and the mandible, the maxilla consists of a left part and a right part which are symmetrical with each other, the toggle mechanism can enable the left part of the maxilla and/or the right part of the maxilla to rotate for a certain angle relative to the mandible, and the rotation limiting mechanism is used for limiting the rotation of the right part of the maxilla or the left part of the maxilla.

Description

Oral cavity model angle adjustment mechanism

Technical Field

The utility model belongs to an angle adjusting mechanism, and particularly relates to an angle adjusting mechanism of an oral cavity model.

Background

The oral cavity model is used for showing the oral cavity internal structure, is generally a maxilla model and a mandible model which are manufactured by simulating the complete opening or the complete closing state of the oral cavity, or is simply hinged with the maxilla model and the mandible model; the oral cavity model in the simple articulated state is locked after the upper jaw and the lower jaw are opened to a specified angle, unlocking and rotating are needed when the angles are adjusted to other angles, the angle adjustment is tedious and inconvenient, the visual display state can be realized only by rapidly completing the angle adjustment when the oral cavity model is used, the upper jaw of the oral cavity model is an integral body, and the angle between the upper jaw and the lower jaw of the oral cavity model can be integrally adjusted when the oral cavity model is adjusted;

when the oral cavity model is applied, the opening and closing angles of the upper and lower jawbones are required to be adjusted to show the position of the tongue in the oral cavity relative to the position of the upper jawbone, when the oral cavity is completely closed or completely opened, the difference of the tongue positions in the oral cavity can not be intuitively displayed, and the position of the tongue in the oral cavity can not be intuitively known when the oral cavity sounds.

Disclosure of Invention

The utility model aims at: the angle adjusting mechanism for the oral cavity model aims at solving the problems that in the prior art, the angle adjusting process between the upper jaw and the lower jaw of the oral cavity model is complicated, inconvenient and quick.

In order to achieve the above purpose, the present utility model adopts the following technical scheme: the utility model provides an oral cavity model angle adjustment mechanism, includes maxilla, mandible, tongue, toggle mechanism, rotation stop gear, the maxilla with rotate between the mandible and be connected, the one end of tongue is fixed the inside of mandible, the other end of tongue is the free end, toggle mechanism the rotation stop gear all sets up the maxilla with between the mandible, the maxilla comprises two parts about mutually symmetry, toggle mechanism can make maxilla left part and/or maxilla right part rotates certain angle for the mandible, rotation stop gear is used for restricting the rotation of maxilla right part or maxilla left part.

As a further description of the above technical solution: the fixed shaft is fixedly arranged on the mandible, a first rotating seat and a second rotating seat are arranged on the right part and the left part of the maxilla, and the first rotating seat and the second rotating seat are rotatably sleeved on the fixed shaft.

As a further description of the above technical solution: one end of the tongue body is fixed in the oral cavity of the mandible, the other end of the tongue body is a free end, and the tongue body is provided with a universal bamboo joint.

As a further description of the above technical solution: the toggle mechanism comprises a rotating sleeve, a deflector rod, two internal splines and two external spline sleeves, wherein the rotating sleeve, the two internal splines and the two external spline sleeves are coaxially sleeved on the fixed shaft, the two external spline sleeves are respectively and fixedly connected with the two ends of the rotating sleeve, one internal spline corresponds to the right part of the maxilla, the other internal spline corresponds to the left part of the maxilla, the first rotating seat is fixedly connected, the deflector rod is fixedly arranged on the rotating sleeve, the total length of the two external spline sleeves and the axis direction of the rotating sleeve is larger than the distance between the two internal splines, and the total length of the two external spline sleeves and the axis direction of the rotating sleeve is smaller than the sum of the distance between the two internal splines and the length of the axis of the internal spline.

As a further description of the above technical solution: the rotation limiting mechanism is provided with two groups, the two groups of rotation limiting mechanisms are respectively in one-to-one correspondence with the left part and the right part of the maxilla, the rotation limiting mechanism comprises a mounting ring, a guide rail ring, a limiting rod and an elastic sheet, the guide rail ring is coaxially sleeved on the fixed shaft, the guide rail ring is fixedly connected to the second rotating seat, the guide rail ring is far away from the side surface of the second rotating seat, a guide rail groove is formed in the side surface of the second rotating seat, the mounting ring is fixedly sleeved on the fixed shaft, a mounting hole is formed in the mounting ring, the mounting hole corresponds to the guide rail groove, the limiting rod is arranged in the mounting hole, the mounting hole is in a rectangular long groove shape, the elastic sheet is arranged at the bottom end of the limiting hole, one end of the mounting rod far away from the elastic sheet is always positioned in the guide rail groove, and the limiting rod moves along the guide rail groove and plays a limiting role, and the guide rail groove is at least divided into three parts.

As a further description of the above technical solution: the guide rail groove is a closed loop groove, the guide rail groove is divided into three parts, namely a first track groove, a second track groove and a third track groove, the first track groove, the second track groove and the third track groove are sequentially connected end to end, the groove depth of the head end of the first track groove, the second track groove and the head end of the third track groove is larger than the groove depth of the tail end of the third track groove, a step is formed at the joint of the tail end of the first track groove and the head end of the second track groove, a step is formed at the joint of the tail end of the second track groove and the head end of the third track groove, and a step is formed at the joint of the tail end of the third track groove and the head end of the first track groove.

In summary, due to the adoption of the technical scheme, the beneficial effects of the utility model are as follows:

(1) The oral cavity model angle adjusting mechanism is simple in structure and convenient to operate, can be operated by one hand quickly, and comprises two parts, and the adjusting mechanism can be used for respectively adjusting the left part of the maxilla and/or the right part of the maxilla, so that the position of the tongue relative to the maxilla in the oral cavity can be intuitively known.

(2) The difference of the opening and closing of the oral cavity maxilla and the mandible can be visually observed through the opening angle of the left part or the right part of the maxilla and the mandible, and the position relation between the tongue body and the oral cavity maxilla and the mandible under different pronunciations can be visually displayed, especially when the left part or the right part of the maxilla is in an opening state and the right part is in a closing state relative to the mandible.

(3) The toggle mechanism and the rotation limiting mechanism are simple in structure and convenient to operate, the rotation limiting mechanism is matched with a reset torsion spring between the left part or the right part of the maxilla and the fixed shaft, so that the limiting rod is clamped at a step formed by the head end of the second track groove and the tail end of the first track groove, and the opening and closing between the maxilla and the mandible can be completed only by unidirectional rotation of the toggle rod during operation.

Drawings

FIG. 1 is a schematic perspective view of the present utility model;

FIG. 2 is a schematic view of another perspective view of the present utility model;

FIG. 3 is a schematic view of the structure of the angle formed between the maxilla and mandible of the present utility model;

FIG. 4 is a schematic view showing a closed state between a left maxilla part and a mandible, wherein the right maxilla part and the mandible form an included angle;

FIG. 5 is a side view of a track ring of the present utility model;

fig. 6 is a cross-sectional view of the mounting ring of the present utility model along the axial direction.

Legend description: 1. left part of maxilla; 2. the right part of the maxilla; 3. mandible bone; 4. a tongue body; 5. a toggle mechanism; 51. rotating the sleeve; 52. a deflector rod; 53. an internal spline; 54. an external spline sleeve; 6. fixing the shaft; 7. a first rotating seat; 8. a second rotating seat; 9. a mounting ring; 10. a guide rail ring; 11. a limit rod; 12. a spring plate; 13. a mounting hole; 14. a first track groove; 15. a second track groove; 16. and a third track groove.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-6, the present utility model provides a technical solution for an oral cavity model angle adjusting mechanism:

the utility model provides an oral cavity model angle adjustment mechanism, including the maxilla, mandible 3, the tongue 4, stirring mechanism 5, rotate spacing mechanism, rotate between maxilla and the mandible 3 and be connected, the one end of tongue 4 is fixed in the oral cavity of mandible 3 inside, the other end of tongue 4 is the free end, be the universal bamboo joint in the tongue 4, the free end of tongue 4 can be adjusted wantonly in order to demonstrate the shape and the position of tongue 4 to different pronunciation, stirring mechanism 5, rotate spacing mechanism all sets up between maxilla and mandible 3, the maxilla comprises two parts about mutual symmetry, stirring mechanism 5 can make maxilla left part 1 and/or maxilla right part 2 rotate certain angle for mandible 3, rotate spacing mechanism is used for restricting the maxilla right part 2 of rotating certain angle for mandible 3 or is used for restricting the maxilla left part 1 of rotating certain angle for mandible 3.

The connection between the left and right maxilla portions 1 and 3 is identical, and the rotation connection and rotation limitation between the right maxilla portion 2 and the mandible 3 will be described in detail below with respect to the right maxilla portion 2.

The fixed shaft 6 is fixedly arranged on the mandible 3, the first rotating seat 7 and the second rotating seat 8 are arranged on the right maxilla part 2, the first rotating seat 7 and the second rotating seat 8 are rotatably sleeved on the fixed shaft 6, reset torsion springs are arranged between the first rotating seat 7, the second rotating seat 8 and the fixed shaft 6, the first rotating seat 7 is fixedly arranged at the middle position of the right maxilla part 2 corresponding to the fixed shaft 6, and the second rotating seat 8 is arranged at the end part of the right maxilla part 2 far away from the left maxilla part 1.

The toggle mechanism 5 is rotatably arranged on the fixed shaft 6, the toggle mechanism 5 is arranged between the two first rotating seats 7, the toggle mechanism 5 comprises a rotating sleeve 51, a toggle rod 52, two inner splines 53 and two outer spline sleeves 54, the rotating sleeve 51, the two inner splines 53 and the two outer spline sleeves 54 are coaxially sleeved on the fixed shaft 6, the two outer spline sleeves 54 are respectively and fixedly connected with two ends of the rotating sleeve 51, one inner spline 53 is fixedly connected with the first rotating seat 7 corresponding to the right maxilla part 2, the other inner spline 53 is fixedly connected with the first rotating seat 7 corresponding to the left maxilla part 1, the toggle rod 52 is fixedly arranged on the rotating sleeve 51, the toggle rod 52 is arranged along the radial direction of the rotating sleeve 51, the total length of the two outer spline sleeves 54 and the rotating sleeve 51 in the axial direction is larger than the distance between the two inner splines 53, and the total length of the two outer spline sleeves 54 and the rotating sleeve 51 in the axial direction is smaller than the sum of the distance between the two inner splines 53 and the axial length of the one inner spline 53.

In the initial state, the maxilla and the mandible 3 are mutually meshed, when the rotary sleeve 51 is positioned at the middle position of the axis of the fixed shaft 6, the rotary sleeve 51 is positioned at the first position, the two external spline sleeves 54 are in one-to-one correspondence with the two internal splines 53 and are in mutual plug-in fit with each other, and at the moment, the right part 2 and the left part of the maxilla are simultaneously rotated around the fixed shaft 6 on the mandible 3 by stirring the deflector rod 52; when the rotating sleeve 51 axially slides along the fixed shaft 6 until the external spline sleeve 54 is completely inserted and matched with the internal spline 53 corresponding to the right maxilla part 2 and the other external spline sleeve 54 is completely separated from the internal spline 53 corresponding to the left maxilla part 1, the rotating sleeve 51 is at the second position, and the right maxilla part 2 rotates around the fixed shaft 6 on the lower mandible 3 by stirring the deflector rod 52; when the rotating sleeve 51 axially slides along the fixed shaft 6 until the external spline sleeve 54 is completely inserted and matched with the internal spline 53 corresponding to the left maxilla part 1 and the other external spline sleeve 54 is completely separated from the internal spline 53 corresponding to the right maxilla part 2, the rotating sleeve 51 is at the third position, and the left maxilla part 1 rotates around the fixed shaft 6 on the lower mandible 3 by stirring the deflector rod 52;

the rotation limiting mechanisms are provided with two groups, the two groups of rotation limiting mechanisms are respectively in one-to-one correspondence with the left and right parts of the maxilla, and because the setting modes of the rotation limiting mechanisms are the same, the rotation limiting mechanisms corresponding to the right part 2 of the maxilla are only explained in terms of the position relationship and principle, the rotation limiting mechanisms comprise a mounting ring 9, a guide rail ring 10, a limiting rod 11 and an elastic sheet 12, the guide rail ring 10 is coaxially sleeved on a fixed shaft 6, the guide rail ring 10 is fixedly connected to a second rotating seat 8, the guide rail ring 10 is far away from the side surface of the second rotating seat 8 and provided with a guide rail groove, the mounting ring 9 is fixedly sleeved on the fixed shaft 6, the mounting ring 9 is provided with a mounting hole 13, the mounting hole 13 corresponds to the guide rail groove, the limiting rod 11 is arranged in the mounting hole 13, the mounting hole 13 is rectangular long-groove-shaped, the length direction of the mounting hole 13 is arranged along the radial direction of the mounting ring 9, the elastic sheet 12 is arranged at the bottom end of the limiting hole, the limiting rod 11 can slide back and forth along the length direction of the mounting ring 9, and one end of the mounting rod far away from the elastic sheet 12 is always located in the guide rail groove.

The guide rail groove is a closed loop groove as shown in fig. 5, in this embodiment, the guide rail groove is divided into three parts, namely, a first track groove 14, a second track groove 15 and a third track groove 16 (in other embodiments, the first track groove 14 can be expanded into a plurality of track grooves), the three track grooves are connected end to end in sequence, the groove depth of the head end of the first track groove 14, the second track groove 15 and the third track groove 16 is greater than the groove depth of the tail end of the first track groove 14, therefore, the tail end of the first track groove 14 and the head end of the second track groove 15 form a step, the tail end of the second track groove 15 and the head end of the third track groove 16 form a step with the head end of the first track groove 14, in the initial state, the upper jaw bone and the lower jaw 3 are mutually meshed, at this moment, the limit rod 11 is positioned at the head end of the first track groove 14, when the upper jaw rotates, the limit rod 11 moves relative to the guide rail ring 10, the tail end of the first track groove 14 moves to the head end of the first track groove 14, the tail end of the first track groove 14 forms a step with the head end of the third track groove 16, the tail end of the third track groove 16 forms a step with the head end of the first track groove 14, in the initial state, the upper jaw and the upper jaw 3 is not able to move until the limit rod 11 moves to the first track groove 11 and the first track groove is positioned between the first track groove and the first track groove 11 and the tail end is able to form a step, which is able to move;

the maxilla is continuously rotated, so that the limiting rod 11 continuously moves relative to the guide rail ring 10, the elastic sheet 12 is compressed again in the process that the limiting rod 11 moves from the head end of the second track groove 15 to the tail end of the second track groove 15 until the limiting rod 11 enters the head end of the third track groove 16 under the action of the elastic sheet 12, the maxilla is not continuously rotated, the maxilla is restored to the initial state under the action of the self weight of the maxilla and is engaged with the mandible 3, and the limiting rod 11 moves from the head end of the third track groove 16 to the tail end of the third track groove 16 and then enters the head end of the first track groove 14 after crossing a ladder.

Working principle: when the oral cavity model is applied, the upper jaw and the lower jaw 3 are restored to the initial state in the engaged state, the upper jaw left part 1 and/or the upper jaw right part 2 are/is driven to rotate through the rotation of the deflector rod 52 by sliding the rotating sleeve 51, the external spline sleeve 54 is matched with the internal spline 53 by sliding the rotating sleeve 51, the deflector rod 52 is driven by the rotating sleeve 51 to drive the upper jaw left part 1 and/or the upper jaw right part 2 to rotate, meanwhile, the limiting rod 11 moves relative to the track groove, when the limiting rod 11 moves from the head end of the first track groove 14 to the tail end of the first track groove 14, then the limiting rod 11 continues to move to the head end of the second track groove 15, when the limiting rod 11 crosses a step, the click sound is heard under the action of the elastic sheet 12, the deflector rod 52 is stopped, at this moment, an included angle is formed between the upper jaw left part 1 and/or the upper jaw right part 2 and the lower jaw 3, the state of the display tongue body 4 is conveniently displayed by adjusting the shape of the tongue body 4, after the completion, the deflector rod 52 continues to move across the tail end of the upper jaw left part 1 and the tail end or the upper jaw right part 2 and the second track groove 2, the self-weight of the upper jaw 16 is recovered, the upper jaw 16 is further increased, the included angle is further increased, and the upper jaw 3 is further buckled with the head end of the second track groove 16 is further, and the third track groove is opened, and the upper jaw is 16 is further buckled with the second track groove and the third track groove is opened, and the upper jaw is opened.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims (6)

1. The utility model provides an oral cavity model angle adjustment mechanism, its characterized in that includes maxilla, mandible (3), tongue (4), toggle mechanism (5), rotation stop gear, the maxilla with rotate between mandible (3) and be connected, the one end of tongue (4) is fixed the inside of mandible (3), the other end of tongue (4) is the free end, toggle mechanism (5) rotation stop gear all sets up maxilla with between mandible (3), the maxilla comprises two parts about mutually symmetry respectively, be maxilla left part (1), maxilla right part (2), toggle mechanism (5) can make maxilla left part (1) and/or maxilla right part (2) rotate certain angle for mandible (3), rotation stop gear is used for restricting rotation of maxilla right part (2) or maxilla left part (1).

2. The oral model angle adjustment mechanism of claim 1, wherein: fixed shaft (6) are arranged on lower jaw (3), first rotation seat (7) and second rotation seat (8) are arranged on right part (2) and left part of upper jaw, and first rotation seat (7) and second rotation seat (8) are rotatably sleeved on fixed shaft (6).

3. The oral model angle adjustment mechanism of claim 1, wherein: one end of the tongue body (4) is fixed in the oral cavity of the mandible (3), the other end of the tongue body (4) is a free end, and a universal bamboo joint is arranged in the tongue body (4).

4. The oral model angle adjustment mechanism of claim 2, wherein: the toggle mechanism (5) comprises a rotating sleeve (51), a toggle rod (52), two internal splines (53) and two external spline sleeves (54), wherein the rotating sleeve (51), the two internal splines (53) and the two external spline sleeves (54) are coaxially sleeved on a fixed shaft (6), the two external spline sleeves (54) are respectively and fixedly connected with two ends of the rotating sleeve (51), one internal spline (53) is fixedly connected with a first rotating seat (7) corresponding to a right maxilla part (2), the other internal spline (53) is fixedly connected with the first rotating seat (7) corresponding to a left maxilla part (1), the toggle rod (52) is fixedly arranged on the rotating sleeve (51), the total length of the two external spline sleeves (54) and the rotating sleeve (51) in the axial direction is larger than the distance between the two internal splines (53), and the two external spline sleeves (54) and the total length of the rotating sleeve (54) and the rotating sleeve (51) in the axial direction are smaller than the total length between the two internal splines (53) and the two axial directions.

5. The oral model angle adjustment mechanism according to claim 4, wherein: the utility model provides a rotating limiting mechanism is provided with two sets of, two sets of rotating limiting mechanism respectively with upper jaw left portion (1), right part one-to-one, rotating limiting mechanism includes collar (9), guide rail ring (10), gag lever post (11), shell fragment (12), guide rail ring (10) are established with the axle sleeve on dead axle (6), guide rail ring (10) fixed connection in on second rotation seat (8), guide rail ring (10) keep away from the guide rail groove has been seted up to the side of second rotation seat (8), the fixed cover of collar (9) is established on dead axle (6), install mounting hole (13) have been seted up on collar (9), mounting hole (13) with the guide rail groove corresponds, gag lever post (11) set up in mounting hole (13), mounting hole (13) are rectangle elongated slot form, shell fragment (12) set up the bottom of mounting hole (13), gag lever post (11) keep away from guide rail (12) are located along three guide rail grooves all the time, at least, limit lever post (11) play the effect is divided into three guide rail grooves.

6. The oral model angle adjustment mechanism according to claim 5, wherein: the guide rail groove is a closed loop groove, the guide rail groove is divided into three parts, namely a first track groove (14), a second track groove (15) and a third track groove (16), the first track groove (14), the second track groove (15) and the third track groove (16) are sequentially connected end to end, the groove depth of the head end of the first track groove (14), the second track groove (15) and the groove depth of the head end of the third track groove (16) are larger than the groove depth of the tail end of the third track groove, a step is formed at the joint of the tail end of the first track groove (14) and the head end of the second track groove (15), a step is formed at the joint of the tail end of the second track groove (15) and the head end of the third track groove (16), and a step is formed at the joint of the tail end of the third track groove (16) and the head end of the first track groove (14).

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