CN211534355U

CN211534355U - Multi-angle mouth mirror of medical department of stomatology

Info

Publication number: CN211534355U
Application number: CN201921599702.0U
Authority: CN
Inventors: 王珂
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-09-25
Filing date: 2019-09-25
Publication date: 2020-09-22
Anticipated expiration: 2029-09-25

Abstract

The utility model discloses a medical stomatological multi-angle mouth mirror, which comprises a first shell, a connecting sleeve, a second shell, a supporting rod, a lens and a lens shell, wherein both ends of the connecting sleeve are respectively connected with the first shell and the second shell through a first connecting piece, a regulating rod is sleeved in the second shell along the axial direction of the second shell, the left end of the second shell is fixed with the second connecting piece, one end of the regulating rod extends to the right end of the second shell and horizontally passes through the two connecting pieces and is connected with a regulating mechanism, the regulating mechanism comprises a pair of fixed blocks fixed on the second connecting piece, a rotating fixed piece is fixed between the two fixed blocks, the supporting rod is vertically fixed at the top end of the rotating fixed piece and the lens shell arranged at the upper end of the supporting rod, and the supporting rod is provided with a cleaning mechanism, the lifting strip plate is used for driving the lens to rotate along with the cleaning rod, and the fog or other stains on the lens are wiped off, so that the operation is simple.

Description

Multi-angle mouth mirror of medical department of stomatology

Technical Field

The utility model relates to the technical field of medical equipment, specifically be a medical department of stomatology multi-angle mouth mirror.

Background

The mouth mirror is one of the most common small-sized medical instruments in oral clinical diagnosis and treatment, and has the main functions of: pulling the patient's cheek and pushing the tongue to facilitate direct visualization of the lesion; the light rays are gathered, and the visibility of the examined part is increased; the parts which are difficult to look directly are observed by the mirror reflection light rays, such as the upper teeth and the inner part of the pulp cavity. However, the current oral mirror body commonly used in clinic is connected with the handle through a fixed angle, for example, the mirror body and the handle form an included angle of 150 degrees, or the mirror body and the handle are in the same plane, and have no self-contained light source, and all provide light through the reflection dental chair illuminating lamp. When the mouth mirror is used for observing parts which are difficult to look directly, such as the cheek and palate sides of the maxillary dental crowns, the near and far middle necks, the insides of the marrow cavities of the upper and lower jaw teeth and the like, the angle of the mouth mirror, the body position of a patient and the angle of a dental chair illuminating lamp are frequently required to be repeatedly adjusted, so that the observation and the operation of doctors are obviously influenced, the treatment time is prolonged, and the comfort level of the patient is reduced. Therefore, the fixed-angle mouth mirror cannot realize multi-angle observation and cannot be well adapted to various use scenes.

In addition, in the using process of the mouth mirror, the temperature difference exists between the mouth mirror and the oral cavity, so that the mirror surface is fogged, and the observation is influenced; when a high-speed turbine mobile phone is used for removing decayed tooth decayed matter, temporary sealing materials of cavities or preparing crowns and grinding away enamel and dentin, the decayed matter, the temporary sealing materials, the enamel or dentin crushed powder are adhered to the mirror surface of the mouth mirror along with water mist, and the observation and operation of a doctor are obviously influenced. At present, the problem of fogging of the mirror surface is solved, and when the mirror surface is cleaned, the mouth mirror needs to be taken out of the oral cavity of a patient and is wiped by using a sterile cotton ball. After the treatment in the mode, a doctor needs to adjust the angle of the mouth mirror again to observe or treat the affected area, and repeatedly 'take out the mouth mirror, wipe and put the mouth mirror into the oral cavity and adjust the angle', so that the treatment efficiency is reduced, and the treatment time and the discomfort of a patient are increased. And after simple wiping, the mirror surface is easy to be fogged again, and is also easy to be adhered with decayed matter, temporary sealing objects, enamel or dentin again, and a patent publication No. CN 105816145B discloses a multi-angle adjustable mouth mirror, which blows off the stains adhered on the surface of the mouth mirror by blowing air to the surface of the mouth mirror, and the effect of removing the stains of the mouth mirror is poor.

Therefore, a multi-angle mouth mirror for medical department of stomatology is urgently needed to solve the problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a medical department of stomatology multi-angle mouth mirror is in order to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a medical multi-angle mouth mirror for stomatology comprises a first shell, a connecting sleeve, a second shell, a supporting rod, lenses and a lens shell, wherein the first shell, the connecting sleeve and the second shell are of hollow structures, two ends of the connecting sleeve are respectively connected with the first shell and the second shell through a first connecting piece, the central axes of the first shell, the connecting sleeve and the second shell are located on the same straight line, an adjusting rod is sleeved in the second shell along the axial direction of the second shell, the cross section of the adjusting rod is of a rectangular structure, the left end of the second shell is fixedly provided with a second connecting piece which is of the same structure as the first connecting piece through a bearing, one end of the adjusting rod extends to the right end of the second shell and horizontally penetrates through the two connecting pieces to be connected with an adjusting mechanism, the other end of the adjusting rod sequentially penetrates through the right end of the second shell, the first connecting piece located at the right end, the upper side of one end, close to the first shell, of the adjusting rod is provided with a driven groove, a first driven rack is arranged in the driven groove along the length of the first driven groove, an adjusting ball is fixed above the adjusting rod in the connecting sleeve, the upper end face of the connecting sleeve is provided with a abdicating groove matched with the adjusting ball, the surface of the adjusting ball is annularly provided with an annular groove, a driving rack matched with the first driven rack is arranged in the annular groove, and the outer side wall of the bottom of the left end of the first shell is connected with the outer side wall of the bottom of the right end of the second shell through an arc-;

the adjusting mechanism comprises a pair of fixed blocks fixed on the two side walls of the connecting piece, a rotating fixing piece fixed between the two fixed blocks, a supporting rod vertically fixed at the top end of the rotating fixing piece and a lens shell arranged at the upper end of the supporting rod, the rotating fixing piece is of an inverted U-shaped structure, and a half gear is fixed in the rotating fixing piece through a connecting shaft, both ends of the connecting shaft horizontally penetrate through the two side walls of the rotating fixing piece fixedly connected with the connecting shaft and are fixed on the inner wall of the fixing block through a bearing, the half gear is matched with a driven rack phase arranged at the right upper end of the adjusting rod, the lens shell is of a hollow structure with a right opening, a rotating shaft is vertically fixed at the central position in the bottom of the lens shell through a bearing, a lens matched with the lens shell is fixed at the position, at the opening of the lens shell, of the right end of the rotating shaft, and the section of the lens shell is of a circular structure;

the support rod is of a hollow structure with an upward opening, a limit sliding groove is formed in the side wall, on the same side with the lens, above the support rod along the length direction of the support rod, a cleaning mechanism for cleaning the lens is arranged on the support rod and comprises a rubber rod which is embedded in the support rod and is in sliding connection with the inner wall of the support rod, a lifting mechanism for driving the rubber rod to lift, a rotating gear fixed on a rotating shaft, a cleaning rod and a lifting strip plate, the rubber rod is of an ┎ structure, the top end of the rubber rod vertically extends out of the limit sliding groove, the top end of the rubber rod is vertically fixed with the cleaning rod and the lifting strip plate respectively, the cleaning rod and the lifting strip plate are parallel to each other, the cleaning rod is positioned outside the support rod and is matched with the lens, the lifting strip plate is positioned in the support rod, and the side wall of the lens shell is provided with a limit hole matched with the lifting strip, one side of the upper end of the lifting long slat is provided with a rotary rack matched with the rotary gear;

elevating system is including establishing at casing one right-hand member and rather than integrated into one piece's reservoir, the hydraulic oil of storage in the reservoir, the piston rod of vertical fixing in piston upper end central point department of putting, the cover establishes the reset spring on the piston rod, fixes the press plate on the piston rod top and fixes the liquid reserve tank on two lateral walls of connecting piece, and the liquid reserve tank is located the below of adjusting the pole, reset spring's one end is fixed at the piston up end, and its other end is fixed on the reservoir inner wall, the reservoir bottom is connected with out the liquid pipeline, and goes out the liquid pipeline and from the right side to a left side and be connected with the liquid reserve tank bottom along the left end bottom of casing one to casing two and through hose one, the liquid reserve.

Preferably, the two first connecting pieces are arranged in bilateral symmetry with respect to the connecting sleeve, the cross section of each first connecting piece is of a convex structure, a bearing is sleeved at the connecting end of one first connecting piece and the first shell, the outer wall of the bearing is fixed on the inner wall of the first shell, a bearing is also sleeved at the connecting end of the other first connecting piece and the second shell, and the outer wall of the bearing is also fixed on the inner wall of the second shell.

Preferably, the height of the cleaning rod is greater than that of the lifting strip plate, the length of the cleaning rod is greater than the radius of the lens, and when the cleaning rod rises to be as high as the circle center of the lens, the rack on the lifting strip plate is meshed with the rotating gear.

Preferably, the axis of rotation is close to one pot head of lens casing and is equipped with the reset torsion spring, lens casing bottom inner wall is improved level and is fixed with two fixed bolsters about the longitudinal symmetry of reset torsion spring, and a torque arm of reset torsion spring pastes on the fixed bolster inside wall that is located its upper end, and another torque arm of reset torsion spring pastes on the fixed bolster lateral wall that is located its lower extreme.

Preferably, two guide rods are fixed to the upper end of the piston and are bilaterally symmetrical with respect to the piston rod, and the upper end of each guide rod is vertically fixed to the bottom end of the pressing plate.

Preferably, the surface of the cleaning rod is sleeved with a sponge layer.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) the utility model rotates around the central axis where the adjusting ball body is positioned by stirring, because the upper end surface of the right end of the adjusting rod is provided with the first driven rack which is matched with the driving rack arranged on the adjusting ball body, when the adjusting ball body rotates clockwise, the adjusting rod moves to the left end of the shell body two, and when the adjusting ball body rotates anticlockwise, the adjusting rod moves to one end where the shell body one is positioned, and when the adjusting rod moves leftwards and rightwards, because the adjusting rod is positioned at the left side of the connecting piece two and is connected with the adjusting mechanism, and the upper end surface of the left end of the adjusting rod is provided with the second driven rack which is matched with the half gear in the adjusting mechanism, therefore, when the adjusting rod moves leftwards and rightwards horizontally, the lens at the top end of the supporting rod fixed in the adjusting mechanism rotates leftwards and rightwards along with the half gear, adjust the angle that the spheroid comes indirect adjustment lens through rotating (can realize the quick adjustment of the partial contained angle of the mirror body part with handheld promptly), in addition, when using the hand to make the direction forward and backward rotation at adjusting the spheroid to its central axis place, make the connecting sleeve, connecting piece one, adjust the pole, connecting piece two and adjustment mechanism rotate together, thereby make the lens swing back and forth that sets up on adjustment mechanism (bracing piece rotates along with connecting piece two promptly), thereby conveniently adjust the angle of lens, realize the regulation of multi-angle to the lens through above-mentioned regulative mode, user's demand can be satisfied.

(2) In the utility model, the support rod is a hollow structure with an upward opening, a limit chute is arranged on the side wall above the support rod and at the same side with the lens along the length direction, a cleaning mechanism for cleaning the lens is arranged on the support rod, the cleaning mechanism comprises a rubber rod which is embedded in the support rod and is connected with the inner wall of the support rod in a sliding way, a lifting mechanism for driving the rubber rod to lift, a rotating gear fixed on a rotating shaft, a cleaning rod and a lifting strip plate, the rubber rod is in an '┎' structure, the top end of the rubber rod vertically extends out of the limit chute, the top end of the rubber rod is respectively vertically fixed with the cleaning rod and the lifting strip plate, the cleaning rod and the lifting strip plate are parallel to each other, the cleaning rod is positioned outside the support rod and is matched with the lens, the lifting strip plate is positioned in the support rod, and the side wall of the lens shell is provided with a limit hole matched with the lifting strip, when the rubber rod drives the cleaning rod to be equal to the center of a circle of the lens through the lifting mechanism, the lens starts to rotate as the rack on the lifting strip plate is meshed with the rotating gear, the lens always rubs with the sponge layer on the outer surface of the cleaning rod in the rotating process so as to wipe mist on the surface of the lens, when the rubber rod continues to drive the cleaning rod and the lifting strip plate to continue to ascend, the lifting strip plate continues to rotate the lens so as to enable the lens to rotate for at least one circle, when the lens rotates for one circle, the cleaning rod can directly wipe the whole surface of the lens so as to prevent medical staff from observing the general oral cavity due to the fact that the mist and other impurities are attached to the lens, the cleaning effect is good, after the lens is cleaned, the pressing plate is released, and the lifting strip plate is under the action of the reset torsion spring, the lens is lowered to the initial position, and the lens is rotated counterclockwise by the lifting strip plate in the lowering process, so that the cleaning rod is lowered together with the lens to clean the surface of the lens again, and in addition, the lens can wipe off the putrefaction, the temporary seal, the enamel or the dentin which are stuck on the lens.

(3) Elevating system establishes the reset spring on the piston rod including establishing at casing one right-hand member and rather than integrated into one piece's reservoir, the hydraulic oil of storage in the reservoir, piston, vertical piston rod of fixing piston upper end central point department of putting, cover, fixes the press plate on the piston rod top and fixes the liquid reserve tank on two lateral walls of connecting piece, and the liquid reserve tank is located the below of adjusting the pole, reset spring's one end is fixed at the piston up end, and its other end is fixed on the reservoir inner wall, the reservoir bottom is connected with out the liquid pipeline, and goes out the liquid pipeline from a right side to a left side and be connected bottom the liquid reserve tank along the left end bottom of casing one to casing two and through hose two, the liquid reserve tank top is passed through hose one and is connected with bracing piece inside bottom, when the lens just stretched into patient's oral cavity, because of the difference in lens surface, Temporarily seal the thing, enamel or dentin and influence medical personnel and observe, at this moment, only need press down the clamp plate with the hand and press down piston rod and guide bar simultaneously downwards, piston rod and guide bar promote the piston downwards, make the hydraulic oil of storage in the reservoir loop through out liquid pipeline and hose one and enter into the liquid reserve tank, enter into the inside bottom of bracing piece by hose two again, the liquid level through entering into the inside hydraulic oil of bracing piece rises and promotes the rubber pole that is located the bracing piece inside and rise, elevating system easy operation and the maintenance of being convenient for.

To sum up, the utility model discloses not only realize the function of the regulation of multi-angle to the lens, only need press the pressing plate to make hydraulic oil enter into the bracing piece in, make clean pole and lift rectangular board rise to it is rotatory to utilize lift rectangular board to drive the lens and paste clean pole, and wipe fog or other stains on the lens, easy operation.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the internal structure of the present invention;

FIG. 3 is a side view of the structure of FIG. 1;

FIG. 4 is a cross-sectional view of the structure at A-A in FIG. 3;

FIG. 5 is a schematic view of the structure at B-B in FIG. 3;

FIG. 6 is an enlarged view of a portion of the structure at A in FIG. 2;

FIG. 7 is an enlarged view of a portion of the structure at B in FIG. 2;

fig. 8 is an enlarged view of a portion of the structure at C in fig. 5.

In the figure: 1. a piston rod; 2. a pressing plate; 3. a first shell; 4. a first connecting piece; 5. a connecting sleeve; 51. a yielding groove; 6. adjusting the ball body; 61. an annular groove; 62. a drive rack; 7. a second shell; 8. a fixed block; 9. a support bar; 91. a limiting chute; 92. a cleaning rod; 93. lifting the strip plate; 94. a rubber rod; 95. hydraulic oil; 10. a limiting hole; 11. a lens housing; 111. a lens; 112. a rotating shaft; 113. a rotating gear; 114. a return torsion spring; 115. fixing a bracket; 12. adjusting a rod; 121. a driven groove; 122. a driven rack I; 123. a driven rack II; 13. a liquid storage tank; 131. a first hose; 132. a second hose; 14. a second connecting piece; 15. an arc-shaped fixing plate; 16. a liquid outlet pipeline; 17. rotating the fixing piece; 171. a half gear; 18. a piston; 19. a guide bar; 20. a liquid storage tank; 21. a return spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-8, the present invention provides an embodiment: a medical multi-angle mouth mirror for department of stomatology comprises a first shell 3, a connecting sleeve 5, a second shell 7, a supporting rod 9, a lens 111 and a lens shell 11, wherein the first shell 3, the connecting sleeve 5 and the second shell 7 are of hollow structures, two ends of the connecting sleeve 5 are respectively connected with the first shell 3 and the second shell 7 through a first connecting piece 4, central axes of the first shell 3, the connecting sleeve 5 and the second shell 7 are located on the same straight line, an adjusting rod 12 is sleeved in the second shell 7 along the axial direction of the second shell, the cross section of the adjusting rod 12 is of a rectangular structure, the adjusting rod 12 is prevented from rotating in the process of moving back and forth along the second shell 7, the adjusting rod 12 is limited, a second connecting piece 14 with the same structure as the first connecting piece 4 is fixed at the left end of the second shell 7 through a bearing, one end of the second connecting piece 14 is fixed on the inner wall of the second shell, one end of the adjusting rod 12 extends to the right end of the second shell 7 and horizontally penetrates through the second connecting piece 14 to be connected with an adjusting mechanism, the other end of the adjusting rod 12 sequentially penetrates through the right end of the second shell 7, the first connecting piece 4 positioned at the right end of the second shell 7, the connecting sleeve 5 and the first connecting piece 4 positioned at the left end of the first shell 3 and extends into the first shell 3, a driven groove 121 is formed in the upper side of one end, close to the first shell 3, of the adjusting rod 12, a first driven rack 122 is arranged in the driven groove 121 along the length thereof, an adjusting ball 6 is fixed above the adjusting rod 12 in the connecting sleeve 5, and the upper end surface of the connecting sleeve 5 is provided with a abdicating groove 51 matched with the adjusting ball body 6, the surface of the adjusting ball body 6 is annularly provided with an annular groove 61, a driving rack 62 matched with the driven rack I122 is arranged in the annular groove 61, and the outer side wall of the bottom of the left end of the first shell 3 is connected with the outer side wall of the bottom of the right end of the second shell 7 through an arc-shaped fixing plate 15;

the adjusting mechanism comprises a pair of fixed blocks 8 fixed on the two side walls of the connecting piece 14, a rotating fixing piece 17 fixed between the two fixed blocks 8, a support rod 9 vertically fixed on the top end of the rotating fixing piece 17 and a lens shell 11 arranged on the upper end of the support rod 9, the rotating fixing piece 17 is of an 'n' structure, and a half gear 171 is fixed in the rotating fixing piece 17 through a connecting shaft, the two ends of the connecting shaft horizontally penetrate through the two side walls of the rotating fixing piece 17 fixedly connected with the connecting shaft and are fixed on the inner wall of the fixed block 8 through bearings, the half gear 171 is matched with a driven rack two 123 arranged at the upper right end of the adjusting rod 12, the lens shell 11 is of a hollow structure with a rightward opening, a rotating shaft 112 is vertically fixed at the center position in the bottom of the lens shell 11 through a bearing, a lens 111 matched with the lens shell 11 is fixed at the, the cross section of the lens shell 11 is a circular structure;

the supporting rod 9 is of a hollow structure with an upward opening, a limit sliding groove 91 is formed in the side wall, on the same side as the lens 111, above the supporting rod 9 along the length direction of the supporting rod, a cleaning mechanism for cleaning the lens 111 is arranged on the supporting rod 9, the cleaning mechanism comprises a rubber rod 94 embedded in the supporting rod 9 and connected with the inner wall of the supporting rod 9 in a sliding manner, a lifting mechanism for driving the rubber rod 94 to lift, a rotating gear 113 fixed on a rotating shaft 112, a cleaning rod 92 and a lifting strip plate 93, the rubber rod 94 is of an '┎' structure, the top end of the rubber rod 94 vertically extends out of the limit sliding groove 91, the top end of the rubber rod 94 is vertically fixed with the cleaning rod 92 and the lifting strip plate 93 respectively, the cleaning rod 92 and the lifting strip plate 93 are parallel to each other, the cleaning rod 92 is positioned outside the supporting rod 9 and matched with the lens 111, the lifting strip plate 93 is positioned in, a position of the side wall of the lens shell 11, which is opposite to the top end of the support rod 9, is provided with a limit hole 10 matched with the lifting strip plate 93, and one side of the upper end of the lifting strip plate 93 is provided with a rotating rack matched with the rotating gear 113;

the lifting mechanism comprises a liquid storage tank 20 which is arranged at the right end of the first shell 3 and is integrally formed with the first shell, hydraulic oil 95 stored in the liquid storage tank 20, a piston 18, a piston rod 1 which is vertically fixed at the central position of the upper end of the piston 18, a return spring 21 which is sleeved on the piston rod 1, a pressing plate 2 which is fixed on the top end of the piston rod 1 and a liquid storage tank 13 which is fixed on the side wall of the second connecting piece 14, wherein the liquid storage tank 13 is positioned below the adjusting rod 12, one end of the return spring 21 is fixed on the upper end surface of the piston 18, the other end of the return spring is fixed on the inner wall of the liquid storage tank 20, the bottom end of the liquid storage tank 20 is connected with a liquid outlet pipeline 16, the liquid outlet pipeline 16 is connected with the bottom of the liquid storage tank 13 from right to left along the.

In this embodiment, the two first connecting members 4 are symmetrically arranged about the connecting sleeve 5, and each first connecting member 4 has a cross section in a shape like a Chinese character 'tu', a bearing is sleeved on a connecting end of one of the first connecting members 4 and the first housing 3, an outer wall of the bearing is fixed on an inner wall of the first housing 3, and a bearing is also sleeved on a connecting end of the other one of the first connecting members 4 and the second housing 7, and an outer wall of the bearing is also fixed on an inner wall of the second housing 7, so that when the adjusting ball 6 is rotated back and forth in a direction of a central axis thereof by hand, the connecting sleeve 5, the first connecting member 4, the adjusting rod 12, the second connecting member 14 and the adjusting mechanism rotate together, thereby the lens 111 arranged on the adjusting mechanism swings back and forth (i.e., the supporting rod 9 rotates together with the second connecting member 14), thereby.

In this embodiment, the height of the cleaning rod 92 is greater than the height of the lifting strip 93, the length of the cleaning rod 92 is greater than the radius of the lens 111, when the cleaning rod 92 rises to the same height as the center of the lens 111, the rack on the lifting strip 93 is engaged with the rotating gear 113, when the rubber rod 94 drives the cleaning rod 92 to the same height as the center of the lens 111, the lens 111 starts to rotate due to the engagement of the rack on the lifting strip 93 with the rotating gear 113, the lens 111 always rubs against the sponge layer on the outer surface of the cleaning rod 92 during the rotation process, so as to wipe the fog on the surface of the lens 111, when the rubber rod 94 continues to drive the cleaning rod 92 and the lifting strip 93 to continue to rise, the lifting strip 93 continues to rotate the lens 111, so as to rotate the lens 111 for at least one circle, when the lens 111 rotates for one circle, the cleaning rod 92 can clean the entire surface of the lens 111, prevent the mist from adhering to the lens 111 and affecting the examination of the oral cavity by the medical staff.

In this embodiment, a reset torsion spring 114 is sleeved on one end of the rotating shaft 112 close to the lens housing 11, two fixing brackets 115 which are vertically symmetrical with respect to the reset torsion spring 114 are horizontally fixed on the inner wall of the bottom of the lens housing 11, one torsion arm of the reset torsion spring 114 is attached to the inner side wall of the fixing bracket 115 at the upper end of the reset torsion spring 114, the other torsion arm of the reset torsion spring 114 is attached to the outer side wall of the fixing bracket 115 at the lower end of the reset torsion spring 114, when the lifting strip plate 93 rises to the highest point, the lifting strip plate 93 descends to the initial position under the action of the reset torsion spring 114, and the lifting strip plate 93 rotates the lens 111 counterclockwise in the descending process, so that the cleaning rod 92 descends together and cleans the surface of the lens 111 again.

In the embodiment, two guide rods 19 which are bilaterally symmetrical about the piston rod 1 are fixed at the upper end of the piston 18, and the upper end of each guide rod 19 is vertically fixed at the bottom end of the pressing plate 2, so that the force bearing areas of the pressing plate 2 and the piston 18 are increased, and the service lives of the two can be prolonged.

In this embodiment, the surface of the cleaning rod 92 is sleeved with a sponge layer, the disinfected sponge layer is sleeved at the upper end of the cleaning rod 92, when the lens 111 just enters the oral cavity in the using process, fog is generated on the surface of the lens 111 due to temperature difference, and the fog, the putrefaction, the temporary sealing object, the enamel or the dentin adhered to the lens 111 can be wiped off through the sponge layer sleeved on the cleaning rod 92, so that the medical personnel can conveniently check the oral cavity of the patient.

The working principle is as follows: when the adjusting mechanism is used, the first shell 3 is held by hand, the adjusting sphere 6 is stirred by hand to rotate around the central shaft, the first driven rack 122 is arranged on the upper end face of the right end of the adjusting rod 12, and the first driven rack 122 is matched with the driving rack 62 arranged on the adjusting sphere 6, so that the adjusting rod 12 moves towards the left end of the second shell 7 in the clockwise rotation process of the adjusting sphere 6, the adjusting rod 12 moves towards one end of the first shell 3 in the anticlockwise rotation process of the adjusting sphere 6, and in the left-right movement process of the adjusting rod 12, the adjusting mechanism is connected to the left side of the connecting piece two 14 because the adjusting rod 12 is positioned on the left side of the connecting piece two, the second driven rack 123 is arranged on the upper end face of the left end of the adjusting rod 12, and the second driven rack 123 is matched with the half gear 171 in the adjusting mechanism, therefore, in the horizontal left-right movement process of the adjusting rod 12, the lens 111 fixed at, therefore, the angle of the lens 111 is indirectly adjusted by rotating the adjusting ball 6 (i.e. the rapid adjustment of the included angle between the lens body and the hand-held part can be realized), in addition, when the adjusting ball 6 is rotated back and forth in the direction of the central axis thereof by hand, the connecting sleeve 5, the first connecting part 4, the adjusting rod 12, the second connecting part 14 and the adjusting mechanism are rotated together, so that the lens 111 arranged on the adjusting mechanism swings back and forth (i.e. the supporting rod 9 rotates along with the second connecting part 14), thereby the angle of the lens 111 is conveniently adjusted, the multi-angle adjustment of the lens 111 is realized by the adjusting mode, the requirement of a user can be met, when the lens 111 just extends into the oral cavity of a patient, fog is generated on the surface of the lens 111 due to the temperature difference, the observation of medical care personnel is influenced, at the moment, only the pressing plate 2 is, the piston rod 1 and the guide rod 19 push the piston 18 downwards, so that the hydraulic oil 95 stored in the liquid storage tank 20 sequentially enters the liquid storage tank 13 through the liquid outlet pipeline 16 and the first hose 131, then enters the bottom end inside the support rod 9 through the second hose 132, and pushes the rubber rod 94 positioned inside the support rod 9 to ascend through the rising of the liquid level of the hydraulic oil 95 entering the support rod 9, and the rubber rod 94 drives the cleaning rod 92 and the lifting strip plate 93 to vertically ascend in the ascending process, when the rubber rod 94 drives the cleaning rod 92 to be equal to the center of a circle of the lens 111, as the rack on the lifting strip plate 93 is meshed with the rotating gear 113, the lens 111 starts to rotate, the lens 111 always rubs with the sponge layer on the outer surface of the cleaning rod 92 in the rotating process so as to wipe the fog on the surface of the lens 111, when the rubber rod 94 continues to drive the cleaning rod 92 and the lifting strip plate 93 to continue to ascend, the lifting strip plate 93 continuously rotates the lens 111 to rotate the lens 111 for at least one circle, when the lens 111 rotates for one circle, the cleaning rod 92 can clean the whole surface of the lens 111 to prevent the medical staff from observing the general oral cavity due to the attachment of fog and other impurities on the lens 111, after the lens 111 is cleaned, the pressing plate 2 is loosened, the lifting strip plate 93 descends to the initial position under the action of the reset torsion spring 114, and the lifting strip plate 93 rotates the lens 111 counterclockwise in the descending process, so that the cleaning rod 92 descends together and the surface of the lens 111 is cleaned again.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a medical department of stomatology multi-angle mouth mirror, includes casing (3), connecting sleeve (5), casing two (7), bracing piece (9), lens (111) and lens casing (11), its characterized in that: the shell I (3), the connecting sleeve (5) and the shell II (7) are of hollow structures, the two ends of the connecting sleeve (5) are respectively connected with the shell I (3) and the shell II (7) through the connecting piece I (4), the central axes of the shell I (3), the connecting sleeve (5) and the shell II (7) are positioned on the same straight line, the shell II (7) is internally sleeved with an adjusting rod (12) along the axial direction of the shell I, the cross section of the adjusting rod (12) is of a rectangular structure, the left end of the shell II (7) is fixedly provided with a connecting piece II (14) which has the same structure as the connecting piece I (4) through a bearing, one end of the adjusting rod (12) extends to the right end of the shell II (7) and horizontally penetrates through the connecting piece II (14) to be externally connected with an adjusting mechanism, the other end of the adjusting rod (12) sequentially penetrates through the right end of the shell II (7), and the connecting piece I, a connecting sleeve (5) and a connecting piece I (4) positioned at the left end of the shell I (3) and extending into the shell I (3), a driven groove (121) is arranged on the upper side of one end of the adjusting rod (12) close to the first shell (3), a first driven rack (122) is arranged in the driven groove (121) along the length of the driven groove, an adjusting ball body (6) is fixed above the adjusting rod (12) in the connecting sleeve (5), and the upper end surface of the connecting sleeve (5) is provided with a yielding groove (51) matched with the adjusting ball body (6), the surface of the adjusting ball body (6) is annularly provided with an annular groove (61), a driving rack (62) matched with the driven rack I (122) is arranged in the annular groove (61), the outer side wall of the bottom of the left end of the first shell (3) is connected with the outer side wall of the bottom of the right end of the second shell (7) through an arc-shaped fixing plate (15);

the adjusting mechanism comprises a pair of fixed blocks (8) fixed on the side wall of the second connecting piece (14), a rotating fixing piece (17) fixed between the two fixed blocks (8), a vertical fixing piece (9) fixed on the top end of the rotating fixing piece (17) and a lens shell (11) arranged on the upper end of the supporting rod (9), the rotating fixing piece (17) is of an n-shaped structure, a half gear (171) is fixed in the rotating fixing piece (17) through a connecting shaft, two ends of the connecting shaft horizontally penetrate through two side walls of the rotating fixing piece (17) fixedly connected with the connecting shaft and are fixed on the inner wall of the fixed block (8) through a bearing, the half gear (171) is matched with a driven rack (123) arranged at the right upper end of the adjusting rod (12), the lens shell (11) is of a hollow structure with an opening towards the right, and a central position in the bottom of the lens shell (11), a lens (111) matched with the lens shell (11) is fixed at the position, located at the opening of the lens shell (11), of the right end of the rotating shaft (112), and the section of the lens shell (11) is of a circular structure;

the utility model discloses a pair of glasses, which is characterized in that the support rod (9) is of a hollow structure with an upward opening, a limit sliding groove (91) is formed in the side wall of the upper side of the support rod (9) and the side wall of the same side of the glasses (111) along the length direction of the support rod, a cleaning mechanism for cleaning the glasses (111) is arranged on the support rod (9), the cleaning mechanism comprises a rubber rod (94) which is embedded in the support rod (9) and is in sliding connection with the inner wall of the support rod (9), a lifting mechanism for driving the rubber rod (94) to lift, a rotating gear (113) fixed on a rotating shaft (112), a cleaning rod (92) and a lifting strip plate (93), the rubber rod (94) is of an '┎' structure, the top end of the rubber rod (94) vertically extends out of the limit sliding groove (91), the top end of the rubber rod (94) is vertically fixed with the cleaning rod (92) and the lifting strip plate (93) respectively, and, the cleaning rod (92) is positioned outside the supporting rod (9) and is matched with the lens (111), the lifting strip plate (93) is positioned in the supporting rod (9), a limiting hole (10) matched with the lifting strip plate (93) is formed in the position, right opposite to the top end of the supporting rod (9), of the side wall of the lens shell (11), and a rotating rack matched with the rotating gear (113) is arranged on one side of the upper end of the lifting strip plate (93);

the lifting mechanism comprises a liquid storage tank (20) which is arranged at the right end of the first shell (3) and is integrally formed with the first shell, hydraulic oil (95) stored in the liquid storage tank (20), a piston (18), a piston rod (1) which is vertically fixed at the central position of the upper end of the piston (18), a return spring (21) which is sleeved on the piston rod (1), a pressing plate (2) which is fixed on the top end of the piston rod (1) and a liquid storage tank (13) which is fixed on the side wall of the second connecting piece (14), wherein the liquid storage tank (13) is positioned below the adjusting rod (12), one end of the return spring (21) is fixed on the upper end surface of the piston (18), the other end of the return spring is fixed on the inner wall of the liquid storage tank (20), the bottom end of the liquid storage tank (20) is connected with a liquid outlet pipeline (16), and the liquid outlet pipeline (16) is connected with the bottom of the liquid storage, the top of the liquid storage tank (13) is connected with the bottom end inside the support rod (9) through a second hose (132).

2. The multi-angle stomatoscope of the medical department of stomatology as claimed in claim 1, wherein: two connecting piece (4) set up about connecting sleeve (5) bilateral symmetry, and every connecting piece (4) cross-section is "protruding" style of calligraphy structure, one of them connecting piece (4) and the link cover of casing (3) are equipped with the bearing, and this bearing outer wall is fixed on the inner wall of casing (3), another the link of connecting piece (4) and casing two (7) also is equipped with the bearing, and the outer wall of this bearing is also fixed on the inner wall of casing two (7).

3. The multi-angle stomatoscope of the medical department of stomatology as claimed in claim 1, wherein: the height of the cleaning rod (92) is greater than that of the lifting strip plate (93), the length of the cleaning rod (92) is greater than the radius of the lens (111), and when the cleaning rod (92) rises to be equal to the circle center of the lens (111) in height, the rack on the lifting strip plate (93) is meshed with the rotating gear (113).

4. The multi-angle stomatoscope of the medical department of stomatology as claimed in claim 1, wherein: one pot head that axis of rotation (112) is close to lens casing (11) is equipped with reset torsion spring (114), lens casing (11) bottom inner wall is improved level and is fixed with two fixed bolster (115) about reset torsion spring (114) longitudinal symmetry, and a torque arm of reset torsion spring (114) pastes on fixed bolster (115) inside wall that is located its upper end, and another torque arm of reset torsion spring (114) pastes on fixed bolster (115) lateral wall that is located its lower extreme.

5. The multi-angle stomatoscope of the medical department of stomatology as claimed in claim 1, wherein: two guide rods (19) which are bilaterally symmetrical about the piston rod (1) are fixed at the upper end of the piston (18), and the upper end of each guide rod (19) is vertically fixed at the bottom end of the pressing plate (2).

6. The multi-angle stomatoscope of the medical department of stomatology as claimed in claim 1, wherein: the surface of the cleaning rod (92) is sleeved with a sponge layer.