CN109512374A - A kind of mouth mirror of removable mirror surface mist - Google Patents
A kind of mouth mirror of removable mirror surface mist Download PDFInfo
- Publication number
- CN109512374A CN109512374A CN201910026739.2A CN201910026739A CN109512374A CN 109512374 A CN109512374 A CN 109512374A CN 201910026739 A CN201910026739 A CN 201910026739A CN 109512374 A CN109512374 A CN 109512374A
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- Prior art keywords
- mirror
- section
- mirror surface
- frame
- stretch section
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/24—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor for the mouth, i.e. stomatoscopes, e.g. with tongue depressors; Instruments for opening or keeping open the mouth
- A61B1/247—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor for the mouth, i.e. stomatoscopes, e.g. with tongue depressors; Instruments for opening or keeping open the mouth with means for viewing areas outside the direct line of sight, e.g. dentists' mirrors
- A61B1/253—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor for the mouth, i.e. stomatoscopes, e.g. with tongue depressors; Instruments for opening or keeping open the mouth with means for viewing areas outside the direct line of sight, e.g. dentists' mirrors with means for preventing fogging
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/12—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor with cooling or rinsing arrangements
Abstract
The present invention provides a kind of mouth mirrors of removable mirror surface mist, including scraping article, mirror bar and frame and mirror surface that mirror bar end is arranged in, mirror bar is the hollow structure with inner cavity, and push rod is provided in the inner cavity of mirror bar, and push rod includes positioned at the stretch section close to frame side end.The present invention provides scraping article the pressure for being bonded mirror surface by the elastic bending deflection of stretch section, and structure is simple, easy to operate, and it is good to scrape water scavenging effect.Stretch section is gradually thicker from front to back on thickness, it is front fine and rear thick, gap is provided between stretch section front end and the second hole section inner wall, the bending of stretch section can be made evenly dispersed everywhither, prevent curved stretch section from excessively scratching mirror surface close to mirror surface, the root bending amplitude that can prevent stretch section from exposing to mirror bar lumen portion again is excessive and fatigue occurs, extend the service life of stretch section and entire push rod or even mouth mirror, the region of the corresponding contact scraping article of frame inner sidewall is set as tilted structure, and scraping article can be effectively prevent to deviate from frame.
Description
Technical field
The present invention relates to oral cavity medical apparatus, especially a kind of mouth mirror of removable mirror surface mist.
Background technique
Mouth mirror is a kind of surgeon dentist commonly utensil, carries out auxiliary inspection for the intracavitary position that can not be looked at straight of counterpart
It looks into, when in use, mirror portion needs to be placed in oral cavity mouth mirror, and the hot gas of throat exhalation is easy to condense in mirror surface and form water
Mist influences to observe, in addition, operation of grinding one's teeth in sleep needs to spray cooling water during grinding one's teeth in sleep, cold in standby tooth, the treatment such as open marrow
But water can splash mouth mirror mirror surface and influence to observe；In addition, when being rinsed using physiological saline or other drugs to tooth, liquid
Body also can splash mouth mirror mirror surface and influence to observe.Such issues that encounter, doctor often remove mouth mirror from oral cavity, and wiping is gone
Except placing back in again after water mist, the interruption for the treatment of and/or inspection will lead in this way, it is very inconvenient.
Chinese patent 201720301728.7 discloses a kind of mouth mirror with defrosting function, but the program is mainly applicable in side
Shape and rectangle mouth mirror and and not applicable circular port mirror, since rectangular mouth mirror (pushs up or down lip aside with mouth mirror in pulling mouth corner
Two sides, to expose the art area visual field) when be easy to damage mucous membrane, be rarely employed during diagnosis and treatment in oral cavity, practicability is inadequate.In addition,
Drawstring, connecting rod in the program and return spring are arranged between the mirror surface back side and rear cover, for the wiping function for guaranteeing its scraper plate
Can, sliding slot is C-channel, and on the one hand structure is complicated, the integral thickness and volume of mouth mirror ontology is in a disguised form increased, so that mouth mirror exists
Placement location in oral cavity is limited.On the other hand, mouth mirror body part needs to be arranged to hollow structure, the mouth mirror of hollow structure
Ontology is difficult to guarantee specular strength relatively.Separately there is Chinese patent 201420297673.3 to disclose a kind of mouth with scraping function
Mirror checks that mirror is also rectangular hollow structure, and there are identical defects with patent 201720301728.7, and above-mentioned two special
In benefit, the element for connecting spring and wiper blade is drawstring, and since drawstring itself is flexible larger, drawstring itself cannot be to scraping
Water bar provides stable thrust, scrapes water and is required to complete by external force or spring with return-stroke, this will result in entirely
Mouth mirror is other than being arranged a return spring, it is also necessary to element (such as spring or other elastic force of an offer thrust in addition be arranged
Element), this will result in, and whole device component is more, and structure is complicated, and operation is also inconvenient.
Chinese patent 201420305965.7 discloses a kind of dedicated mouth mirror, and the mouth mirror in the program is for circle
Mouth mirror setting, and do not need for its mirror surface back side to be arranged to hollow structure in the program, in the program, it is provided with and turns on mirror holder
Axis is provided with the single side flexural spring being used to provide power in shaft, and the both ends of single side flexural spring respectively connect an arc
The mirror brush of shape, the other end of mirror brush are connected the upper end of towing plate around pulley by traction rope, set between pulley and towing plate
Guide plate is set, spring is set in the middle part of the lower end of towing plate.The driving of its whole device and reset system include two traction ropes, two
A pulley, a single side flexural spring, a shaft, a guide plate, a towing plate and a spring, component is more, structure
It is complicated.And in this scenario, mirror brush wipes water mist from the mode that two side of eyeglass swings back and forth to centre, water mist brushed to
Eyeglass center is easy to influence observation sight.
In conclusion needing a kind of features simple structure in the prior art and scraping the mouth mirror that water works well, to solve above-mentioned skill
Art problem.
Summary of the invention
It is an object of that present invention to provide a kind of mouth mirrors of removable mirror surface mist, are asked with solve to propose in background technique
Topic.
A kind of mouth mirror of removable mirror surface mist, including scraping article 1, mirror bar 2 and the frame 3 for being connected to mirror bar end, frame
It is inside provided with mirror surface 4, the mirror bar is the hollow structure with inner cavity, is provided with push rod 6 in the inner cavity of mirror bar, push rod includes position
It stretches out from mirror bar inner cavity close to one end of frame in one end of the stretch section 61 close to frame, stretch section and connects with the scraping article
It connects, the stretch section is the rigid rodlike element that can be resiliently deflected, so that stretch section can both be resiliently deflected and fit
The angle between mirror surface and mirror bar is answered, and scraping article can be pressed on mirror surface always and scraping article is made to keep the fit-state with mirror surface.
The push rod is connected with elastic element 7, and elastic element is to make push rod far from frame to the force direction of push rod
Direction, elastic element in the raw under, stretch section is retracted in mirror bar inner cavity, elastic force of the scraping article in elastic element
Retracted at the frame inner sidewall 31 at mirror surface apical position under effect (is described close to frame and mirror bar junction in the application
Mirror surface apical position is mirror surface bottom position with frame and mirror bar junction highest distance position)；When there is the side for making push rod close to frame
To external force overcome elastic element elastic force act on when, scraping article can slide into mirror surface bottom end along mirror surface top and finally be pushed out to mirror
At frame inner sidewall at the bottom position of face.
Further, the stretch section is in front fine and rear thick structure, i.e., along the direction of mirror bar to frame, the stretch section
Thickness or diameter dimension be gradually reduced, the region of the corresponding stretch section under natural conditions in the inner cavity is defined as the first hole section
51, the first hole section is straight hole, is matched at the aperture of the first hole section and stretch section most coarse position.
Preferably, the stretch section is in flat structure, i.e., the cross section of stretch section is rectangular cross section, the rectangular cross-sectional
The length direction in face is parallel with mirror surface, in order to match with the elastic bending direction of stretch section.
In the rectangular cross section of the stretch section, the size of length direction is 1.8~2.2mm, the size of the length direction
Greater than the thickness of stretch section, and along the direction of mirror bar to frame, the thickness of stretch section by 1.6~1.8mm gradually
It is decreased to 0.4~0.6mm.
The push rod includes interlude 62 and the pressing section for being located at interlude both ends and the stretch section 61, presses section
It is located remotely from one end of frame, stretch section is located at close to one end of frame, and the described pressing one end of section far from interlude is from mirror bar
Inner cavity is stretched out far from one end of frame pushes push rod so that external force contacts pressing, and the one end of stretch section far from interlude is out of mirror bar
Chamber is stretched out close to one end of frame and is connect with the scraping article.
It is provided with shoulder block 66 in the interlude or pressing section, the third hole for blocking shoulder block is provided in mirror bar inner cavity
Shoulder 57, when the shoulder block and third hole shoulder offset, the scraping article just slides onto mirror surface bottom end by mirror surface top or close to mirror
Face bottom end, so that anti-thrust stretch section excessively stretches out and overbending and/or damage mirror surface occurs.
The elastic element is the spring for being set in push rod interlude periphery, and the cross sectional dimensions of interlude is less than or equal to
Size at stretch section most coarse position, it is enough anti-for the ease of processing and guaranteeing in order to pass through the first hole section 51
Curved intensity, can by the cross-sectional profiles of interlude, be sized to as at stretch section most coarse position.The inner cavity is corresponding
The region of interlude under natural conditions is defined as the second hole section 52, the region definition of the corresponding pressing section under natural conditions in inner cavity
For third hole section, the second hole section both ends are respectively arranged with the first hole shoulder 53 and the second hole shoulder 54, on the push rod in interlude with
The intersection of pressing section is provided with protrusion 63, and protrusion is located in the second hole section and can be blocked by the second hole shoulder, the spring one end
The first hole shoulder is resisted, the other end resists the protrusion.
Further, the third hole section includes and connecting hole 55 that the second hole section is disposed adjacent and adjacent with connecting hole set
The intersection of connecting hole and pilot hole is arranged in the pilot hole 56 set, third hole shoulder 57, and the pressing section includes linkage section
64 are arranged with extended segment 65, the shoulder block 66 in linkage section and extended segment intersection, and linkage section diameter is matched with connecting hole aperture,
Extended segment diameter is matched with pilot hole aperture, and the length of the extended segment is greater than or equal to the length of pilot hole, the pilot hole
Length be less than or equal to the stretching stroke length of stretch section 61 it is described so that when the shoulder block and third hole shoulder offset
Scraping article just slides onto mirror surface bottom end by mirror surface top or close to mirror surface bottom end, so that anti-thrust stretch section excessively stretches out and occurs
Overbending and/or damage mirror surface.
Preferably, scraping article pushes against frame inner sidewall, stretch section and the scraping article length under the elastic force effect of elastic element
The intermediate position in direction connects, and the stretch section material is using the metal that can be resiliently deflected deformation, such as copper, iron, carbon steel, no
Become rusty steel or Nitinol, and the frame and mirror pole stock matter use plastics.
The corresponding region for contacting the scraping article of the frame inner sidewall 31 is set as tilted structure, the tilted structure
Specially frame inner sidewall is radially recessed close to the lower area of mirror surface, and frame inner sidewall upper portion fringe region is radially
Inwardly projecting, the frame and mirror surface are circle, and the scraping article is elastic rubber, so that scraping article is in mirror surface top and mirror
Face, the length of scraping article are greater than or equal to the diameter dimension of the frame inner sidewall recess.Frame side wall is arranged to tilting knot
Structure can play limit and guiding role to scraping article, prevent scraping article from deviating from frame.
The mirror bar is provided with resigning breach 21 at the position of connection frame, and resigning breach is used to provide one to stretch section
Card is caused due to bending with the stroke initial stage for preventing stretch section from stretching out mirror bar inner cavity at it because being difficult in the free end of measured length
Resistance.
The mirror rod outer surface is provided with the concave convex texture 22 for increasing friction and convenient for grasping, and the mirror bar is arranged to
To half-open split type structure, two are fixed by screws in together halfbody for front and back, and external screw thread is arranged in the tail end of mirror bar,
Rotation sets hollow nut 23 on external screw thread.
The present invention at least has the advantages that
Mouth mirror of the invention provides for being bonded mirror surface scraping article by the elastic bending deflection of the stretch section on push rod
Pressure, structure is simple, easy to operate, the middle position connection of stretch section and scraping article, and the mode for scraping water is from top the bottom of toward
End scrape water, due to mouth mirror be all in most cases when in use mirror bar in upper frame under so that mouth mirror scraping article of the invention
Scrape direction in most cases and can comply with the gravity of mirror surface mist or dirt, can guarantee good scrape water in this way
Scavenging effect improves mirror image effect, facilitates doctor's observation.
In the present invention, the stretch section for directly sweeping connection scraping article is flat structure, helps to make stretch section according to required
Direction be bent, that is, be bent upwards, and stretch section is gradually thicker from front to back on thickness, it is front fine and rear thick, before stretch section
It is provided with gap between end and the second hole section inner wall, the bending of stretch section can be made evenly dispersed everywhither, prevent curved elasticity
Section excessively scratch mirror surface close to mirror surface, and the root bending amplitude that can prevent stretch section from exposing to mirror bar lumen portion it is excessive and
Fatigue occurs, extends the service life of stretch section and entire push rod or even mouth mirror.
In the present invention, push rod and mirror bar inner cavity are respectively arranged with shoulder block and hole shoulder as position limiting structure, when shoulder block and the
When three hole shoulders offset, scraping article just slides onto mirror surface bottom end by mirror surface top, so that anti-thrust stretch section excessively stretches out and occurs
Overbending and/or damage mirror surface.
In the present invention, the region of the corresponding contact scraping article of frame inner sidewall is set as tilted structure, the corresponding region of scraping article
It is also provided with into identical tilted structure, scraping article can be effectively prevent to deviate from frame.
Other than objects, features and advantages described above, there are also other objects, features and advantages by the present invention.
Below with reference to figure, the present invention is described in further detail.
Detailed description of the invention
The attached drawing constituted part of this application is used to provide further understanding of the present invention, schematic reality of the invention
It applies example and its explanation is used to explain the present invention, do not constitute improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is (the scraping article position of external structure main view one of the mouth mirror of the removable mirror surface mist of the preferred embodiment of the present invention
In mirror surface top)；
Fig. 2 is the main view for showing the mouth mirror of the removable mirror surface mist of the preferred embodiment of the present invention of mirror bar internal structure
Figure two (scraping article is located at mirror surface top)；
Fig. 3 is the main view for showing the mouth mirror of the removable mirror surface mist of the preferred embodiment of the present invention of mirror bar internal structure
Figure three (scraping article is located at mirror surface bottom end)；
Fig. 4 is that (mirror bar does not show completely for the mouth mirror lateral sectional view of the removable mirror surface mist of the preferred embodiment of the present invention
Out).
In figure: 1- scraping article, 2- mirror bar, 21- resigning breach, 22- concave convex texture, the hollow nut of 23-, 3- frame, 31- frame
Inner sidewall, 4- mirror surface, the first hole section of 51-, the second hole section of 52-, the first hole 53- shoulder, the second hole 54- shoulder, 55- connecting hole, 56- are led
Xiang Kong, 57- third hole shoulder, 6- push rod, 61- stretch section, 62- interlude, the protrusion 63-, 64- linkage section, the extended segment 65-, 66- gear
Shoulder, 7- elastic element (spring).
Specific embodiment
The embodiment of the present invention is described in detail below in conjunction with attached drawing, but the present invention can be limited according to claim
Fixed and covering multitude of different ways is implemented.
A kind of mouth mirror of removable mirror surface mist referring to figs. 1 to 4, including scraping article 1, mirror bar 2 and it is connected to mirror bar end
The Circular mirror frame 3 at end is provided with circular mirror surface 4 in frame, and the mirror bar is the hollow stem with inner cavity, sets in the inner cavity of mirror bar
It is equipped with the push rod 6 being axially movable, the total length of push rod is greater than the length of inner cavity, and push rod includes being located at close to frame side end
Stretch section 61, the one end of stretch section far from push rod main part from mirror bar inner cavity close to frame one end stretch out and scraped with described
Item vertically connects, and the stretch section is the rigid rodlike element that can be resiliently deflected, so that elasticity can both occur for stretch section
It is bent and adapts to the angle between mirror surface and mirror bar, and scraping article can be pressed on mirror surface always and scraping article is made to keep the patch with mirror surface
Conjunction state.
The push rod is connected with elastic element 7, and elastic element is to make push rod far from frame to the force direction of push rod
Direction, under natural conditions, stretch section are retracted in mirror bar inner cavity, and the scraping article pushes against mirror surface under the elastic force effect of elastic element
Frame inner sidewall 31 at apical position；When the external force for having the direction for making push rod close to frame overcomes the elastic force of elastic element to act on
When, scraping article can slide into mirror surface bottom end along mirror surface top and finally push against the frame inner sidewall at mirror surface bottom position, slide
The water mist of mirror surface attachment or other dirts are scraped off in the process.
Referring to fig. 4, in the present embodiment, stretch section is in front fine and rear thick structure, i.e., described along the direction of mirror bar to frame
The thickness or diameter dimension of stretch section are gradually reduced, and the region of the corresponding stretch section under natural conditions in the inner cavity is defined as first
The region of hole section 51, the corresponding interlude under natural conditions in inner cavity is defined as the second hole section 52, and inner cavity corresponds under natural conditions
The region of pressing section is defined as third hole section.First hole section is straight hole, aperture and the phase at stretch section most coarse position of the first hole section
Matching.Stretch section is arranged to front fine and rear thick structure, its advantage is that: front end carefully makes stretch section front end and the first hole section inner wall
Between maintain gap, the bending of stretch section can be made evenly dispersed everywhither, on the one hand prevent curved stretch section excessively close to
Mirror surface and scratch mirror surface, on the other hand avoiding stretch section from exposing to the root of mirror bar lumen portion, (i.e. stretch section exposes to mirror bar
Lumen portion is close to one end of push rod main body) bending amplitude is excessive and generates fatigue.In addition, being resiliently deflected in stretch section
When, the moment of flexure that the root that stretch section exposes to mirror bar lumen portion is born is maximum, and structure front fine and rear thick in this way can guarantee
When scraping article is located at any position, the root position intensity that stretch section exposes to mirror bar lumen portion is most strong, the moment of flexure that can bear
Also maximum, scraping article can not only be provided so stable for being bonded the power of mirror surface, and but also can prevent stretch section from exposing in mirror bar
The root bending amplitude of cavity segment is excessive and fatigue occurs, and extends the service life of stretch section and entire push rod or even mouth mirror.
In the present embodiment, the stretch section is in flat structure, and the cross section of stretch section is rectangular cross section, and the rectangle is horizontal
The length direction in section is parallel with mirror surface, in order to match with the elastic bending direction of stretch section.Due to the bending side of stretch section
It is bent upwards to should be, and the intensity of the stretch section direction is less than the intensity of its rectangular cross section length direction, therefore also more
Easily it is bent upwards.
In the rectangular cross section of the stretch section of the present embodiment, the size of length direction is 2mm, and along mirror bar to frame
The thickness in direction, stretch section is gradually decrease to 0.5mm by 1.8mm.In the present embodiment, the diameter of circular mirror surface is 20mm,
The outer profile diameter of Circular mirror frame is 25mm, and mirror bar total length is 130mm.
In the present embodiment, the push rod includes interlude 62 and the pressing section and the elasticity for being located at interlude both ends
Section 61, pressing section are located remotely from one end of frame, and stretch section is located at close to one end of frame, and the pressing section is far from interlude
One end from third hole section far from frame one end stretch out for external force contact pressing push push rod, stretch section far from interlude one
It holds and stretches out from the first hole section 51 close to one end of frame and connect with the scraping article.
In the present embodiment, elastic element 7 is the spring for being set in push rod interlude periphery, the interlude of interlude it is transversal
Facial contour is sized to as at stretch section most coarse position, is the rectangle of long 2mm, width 1.8mm, in order to smoothly lead to
Cross the first hole section 51, the second hole section both ends are respectively arranged with the first hole shoulder 53 and the second hole shoulder 54, in interlude on the push rod
The intersection of pressing section is provided with protrusion 63, protrusion is located in the second hole section and can be blocked by the second hole shoulder, the spring one
End resists the first hole shoulder, and the other end resists the protrusion.
In the present embodiment, the third hole section includes the connecting hole 55 being disposed adjacent with the second hole section and adjacent with connecting hole
The intersection of the pilot hole 56 of setting, connecting hole and pilot hole be equipped with third hole shoulder 57, the pressing section include linkage section 64 and
Extended segment 65, linkage section and extended segment intersection are equipped with shoulder block 66, and linkage section diameter is matched with connecting hole aperture, extended segment diameter
It is matched with pilot hole aperture, the length of the extended segment is greater than or equal to the length of pilot hole, and the length of the pilot hole is equal to
The stretching stroke length of stretch section 61, so that the scraping article is just by mirror surface top when the shoulder block and third hole shoulder offset
End slides onto mirror surface bottom end, so that anti-thrust stretch section excessively stretches out and overbending and/or damage mirror surface occurs.
In the present embodiment, the stretch section material is using the stainless steel that can be resiliently deflected, the frame and mirror pole stock
Matter uses plastics.
Referring to fig. 4, in the present embodiment, the corresponding region for contacting the scraping article of the frame inner sidewall 31 is set as tilting
Structure, the tilted structure are specially that frame inner sidewall is radially recessed close to the lower area of mirror surface, on the inside of frame
Wall upper edge region projects radially inwards, and the scraping article is elastic rubber, and when not stressing, scraping article is vertical bar shape, scrapes
Item is located at mirror surface top and when mirror surface bottom end, flexible at the arc to match with frame inner sidewall, the length of scraping article be greater than or
Equal to the diameter dimension of the frame inner sidewall recess.Frame side wall, which is arranged to tilted structure, to be played limit to scraping article and lead
To effect, prevent scraping article from deviating from frame, in addition, scraping article can largely be hidden in frame inner sidewall not scraping water under natural conditions
Recess, on sight influence it is smaller.Referring to fig. 4, in the present embodiment, in order to ensure scraping article is deviate from from frame, scraping article corresponds to mirror
The region of frame inner sidewall is also provided with into and the matched tilted structure of frame inclined inside wall.
Referring to figs. 1 to 4, in the present embodiment, the mirror bar is provided with resigning breach 21 at the position of connection frame, allows
Position notch is used to provide the free end of certain length to stretch section, initial with the stroke for preventing stretch section from stretching out mirror bar inner cavity at it
Stage is bent because being difficult to due to causes card resistance.
Referring to Fig. 1, in the present embodiment, the mirror rod outer surface is provided with the asperities for increasing friction and convenient for grasping
Road 22, concave convex texture are distributed in middle part and the tail end (i.e. extended segment stretch out pilot hole one end) of mirror rod outer surface, with
In when finger needs to press push rod, mirror bar can provide enough frictional force and entire mouth mirror is made to keep balance.
Referring to Fig. 1, for the ease of push rod and spring to be fitted into inner cavity, in the present embodiment, it is right that mirror bar is arranged to front and back
Half-open split type structure, two are fixed by screws in together halfbody, and external screw thread, external screw thread is arranged in the tail end of mirror bar
Upper rotation sets hollow nut 23, and on the one hand hollow nut can play two to halfbody is auxiliarily fixed, on the other hand hollow nut
End face A can provide reversed supporting point when pressing extended segment, convenient for scrape water operation.
In use, extending to the part outside pilot hole along close to the direction of frame pressing extended segment with finger, overcome push rod
Spring force is to close to the movement of the direction of frame, and stretch section is stretched out and is resiliently deflected from the first hole section, and scraping article is in stretch section
Driving under be bonded mirror surface and from mirror surface top to mirror surface bottom end slide, until shoulder block offsets with third hole shoulder, scraping article is just arrived
Up to mirror surface bottom end (referring to Fig. 3), the finger for pressing extended segment is unclamped, push rod returns back to nature under the elastic force effect of spring
State, stretch section are withdrawn, and scraping article comes back to mirror surface top, are completed a wiper action and are resetted, and can be entered and be scraped water next time
Circulation, it is simple and convenient.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of mouth mirror of removable mirror surface mist, which is characterized in that including scraping article (1), mirror bar (2) and be connected to mirror bar end
Frame (3), be provided with mirror surface (4) in frame, be the mirror surface apical position close to frame and mirror bar junction, with frame and
Mirror bar junction highest distance position is mirror surface bottom position, and the mirror bar is the hollow structure with inner cavity, is set in the inner cavity of mirror bar
It is equipped with push rod (6), push rod includes positioned at the stretch section (61) close to frame, and one end of stretch section is from mirror bar inner cavity close to frame
One end is stretched out and is connect with the scraping article, and the stretch section is the rigid rodlike element that can be resiliently deflected, so that elastic
Duan Jike is resiliently deflected and adapts to the angle between mirror surface and mirror bar, and scraping article can be pressed on mirror surface always and make scraping article
Keep the fit-state with mirror surface；
The push rod is connected with elastic element (7), and elastic element is the side far from frame that makes push rod to the force direction of push rod
To, elastic element in the raw under, stretch section is retracted in mirror bar inner cavity, the scraping article elastic element elastic force make
It is retracted under at the frame inner sidewall at mirror surface apical position (31)；When there is the external force in the direction for making push rod close to frame to overcome bullet
When the elastic force effect of power element, scraping article can slide into mirror surface bottom end along mirror surface top and finally be pushed out at mirror surface bottom position
At frame inner sidewall.
2. a kind of mouth mirror of removable mirror surface mist according to claim 1, which is characterized in that the stretch section is in preceding thin
Thick structure afterwards, i.e., along the direction of mirror bar to frame, the thickness or diameter dimension of the stretch section are gradually reduced, the inner cavity
The region of corresponding stretch section under natural conditions is defined as the first hole section (51), and the first hole section is straight hole, the aperture of the first hole section
Match at stretch section most coarse position.
3. a kind of mouth mirror of removable mirror surface mist according to claim 2, which is characterized in that the stretch section is in flat
Structure, the i.e. cross section of stretch section be rectangular cross section, the length direction of the rectangular cross section is parallel with mirror surface, in order to
The elastic bending direction of stretch section matches；
In the rectangular cross section of the stretch section, the size of length direction is 1.8~2.2mm, and the size of the length direction is greater than
The thickness of stretch section, and along the direction of mirror bar to frame, the thickness of stretch section is gradually reduced by 1.6~1.8mm
To 0.4~0.6mm.
4. a kind of mouth mirror of removable mirror surface mist according to claim 3, which is characterized in that the push rod includes centre
Section (62) and pressing section and the stretch section (61) for being located at interlude both ends, pressing section are located remotely from one end of frame,
Stretch section is located at close to one end of frame, and the described pressing one end of section far from interlude is stretched from mirror bar inner cavity far from one end of frame
Push rod is pushed so that external force contacts pressing out, the one end of stretch section far from interlude is stretched out from mirror bar inner cavity close to one end of frame
And it is connect with the scraping article；
It is provided with shoulder block (66) in the interlude or pressing section, the third hole shoulder for blocking shoulder block is provided in mirror bar inner cavity
(57), when the shoulder block and third hole shoulder offset, the scraping article just slides onto mirror surface bottom end by mirror surface top or close to mirror
Face bottom end, so that anti-thrust stretch section excessively stretches out and overbending and/or damage mirror surface occurs.
5. a kind of mouth mirror of removable mirror surface mist according to claim 4, which is characterized in that the elastic element is set
It is located at the spring of push rod interlude periphery, the cross sectional dimensions of interlude is less than or equal to the size at stretch section most coarse position,
In order to pass through the first hole section (51), the region of the corresponding interlude under natural conditions in the inner cavity is defined as the second hole section
(52), the region of the corresponding pressing section under natural conditions in inner cavity is defined as third hole section, and the second hole section both ends are respectively arranged with the
One hole shoulder (53) and the second hole shoulder (54), the intersection on the push rod in interlude and pressing section is provided with protrusion (63), convex
Portion is located in the second hole section and can be blocked by the second hole shoulder, and the spring one end resists the first hole shoulder, and the other end resists described convex
Portion.
6. a kind of mouth mirror of removable mirror surface mist according to claim 5, which is characterized in that the third hole section includes
The connecting hole (55) being disposed adjacent with the second hole section and the pilot hole (56) being disposed adjacent with connecting hole, third hole shoulder (57)
The intersection of connecting hole and pilot hole is set, and the pressing section includes linkage section (64) and extended segment (65), the shoulder block
(66) it is arranged in linkage section and extended segment intersection, linkage section diameter is matched with connecting hole aperture, extended segment diameter and pilot hole
Aperture matching, the length of the extended segment are greater than or equal to the length of pilot hole, and the length of the pilot hole is less than or equal to bullet
The stretching stroke length of property section (61).
7. a kind of mouth mirror of removable mirror surface mist according to claim 1, which is characterized in that the mirror bar is in connection mirror
It is provided at the position of frame resigning breach (21), resigning breach is used to provide the free end of certain length to stretch section, to prevent
Stretch section causes card resistance due to being bent because being difficult to its stroke initial stage for stretching out mirror bar inner cavity.
8. a kind of mouth mirror of removable mirror surface mist according to claim 1, which is characterized in that the mirror rod outer surface is set
It is equipped with the concave convex texture (22) for increasing friction and convenient for grasping, the mirror bar is arranged to front and back to half-open split type knot
Structure, two are fixed by screws in together halfbody, and external screw thread is arranged in the tail end of mirror bar, and rotation sets hollow nut on external screw thread
(23)。
9. a kind of mouth mirror of removable mirror surface mist described according to claim 1~any one of 8, which is characterized in that institute
It states frame inner sidewall (31) corresponding region for contacting the scraping article and is set as tilted structure, the tilted structure is specially mirror
Frame inner sidewall is radially recessed close to the lower area of mirror surface, and frame inner sidewall upper portion fringe region is convex radially inward
Out.
10. a kind of mouth mirror of removable mirror surface mist according to claim 1, which is characterized in that scraping article is in elastic element
Elastic force effect lower push against frame inner sidewall, the intermediate position connection of stretch section and the scraping article length direction, the stretch section
Material using can be resiliently deflected the metal of deformation, specially copper, iron, carbon steel, stainless steel or Nitinol, the frame with
Mirror surface is circle, and the scraping article is elastic rubber, and the length of scraping article is greater than or equal to the frame inner sidewall recess
Diameter dimension.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910026739.2A CN109512374A (en) | 2019-01-11 | 2019-01-11 | A kind of mouth mirror of removable mirror surface mist |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910026739.2A CN109512374A (en) | 2019-01-11 | 2019-01-11 | A kind of mouth mirror of removable mirror surface mist |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109512374A true CN109512374A (en) | 2019-03-26 |
Family
ID=65798833
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910026739.2A Pending CN109512374A (en) | 2019-01-11 | 2019-01-11 | A kind of mouth mirror of removable mirror surface mist |
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| Country | Link |
|---|---|
| CN (1) | CN109512374A (en) |
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