CN213963897U

CN213963897U - Pupil distance adjusting mechanism for ophthalmic equipment and vision therapeutic instrument

Info

Publication number: CN213963897U
Application number: CN202022576342.1U
Authority: CN
Inventors: 张河宏; 张标伟
Original assignee: Shenzhen Shuoge Innovation Technology Co ltd
Current assignee: Shenzhen Shuoge Innovation Technology Co ltd
Priority date: 2020-11-09
Filing date: 2020-11-09
Publication date: 2021-08-17
Anticipated expiration: 2030-11-09

Abstract

The utility model discloses a pupil distance adjusting mechanism and an eyesight therapeutic instrument for an ophthalmological apparatus, wherein the pupil distance adjusting mechanism comprises a positive and negative screw rod, a first sliding piece, a second sliding piece, a first bolt and a second bolt, the positive and negative screw rod is provided with a first end and a second end, the first end is provided with a positive rotation thread groove, and the second end is provided with a negative rotation thread groove; the first sliding part is slidably sleeved outside the first end and is suitable for mounting a left eye part, and the second sliding part is slidably sleeved outside the second end and is suitable for mounting a right eye part; the first bolt is installed on the first sliding part and partially extends into the forward-rotation thread groove, and the second bolt is installed on the second sliding part and partially extends into the reverse-rotation thread groove. According to the utility model provides a pupil distance adjustment mechanism and vision therapeutic instrument for ophthalmic equipment, the interval adjustment precision is higher, and the structure is more reliable and more stable, in addition, simple structure, it is small.

Description

Pupil distance adjusting mechanism for ophthalmic equipment and vision therapeutic instrument

Technical Field

The utility model relates to the technical field of medical equipment, especially, relate to a interpupillary distance adjustment mechanism and vision therapeutic instrument for ophthalmic devices.

Background

Myopia, amblyopia, etc. are one of the most common diseases in ophthalmic diseases, and bring many adverse inconveniences to life, work and study of people, and the diseases such as myopia, amblyopia, etc. gradually appear younger, and teenagers and children also gradually become the group of the diseases.

The myopia and amblyopia treating equipment is one kind of ophthalmology equipment with laser light source to irradiate and stimulate retina to treat myopia and amblyopia. Since the interpupillary distance is different for different people, for example, the interpupillary distance of children is small, the interpupillary distance of adults is large, and the interpupillary distance of a person changes to adults with age. In order to adapt to different interpupillary distances of different age groups, an interpupillary distance adjusting mechanism is usually required to be designed in the myopia and amblyopia treatment equipment, and the distance between the left eye light source and the right eye light source is changed through the interpupillary distance adjusting mechanism.

In the related art, although the pupil distance adjusting mechanisms configured in the myopia and amblyopia treatment device, such as the gear up-and-down rotation adjusting structure, the gear-rack adjusting structure, the screw nut adjusting structure, and the like, can play a role in adjusting the distance between the light sources to a certain extent, the inventors found that these pupil distance adjusting mechanisms are all low in adjusting precision, large in structure volume, complex in structure, poor in stability, and not suitable for being applied to portable wearable products.

SUMMERY OF THE UTILITY MODEL

The present invention aims at solving at least one of the technical problems in the related art to a certain extent. Therefore, an object of the present invention is to provide a pupil distance adjusting mechanism for an ophthalmic apparatus.

Another object of the utility model is to provide an eyesight therapeutic apparatus.

To achieve the above object, according to the present invention, an interpupillary distance adjusting mechanism for an ophthalmic apparatus includes:

the screw rod comprises a positive screw rod and a negative screw rod, wherein the positive screw rod and the negative screw rod are provided with a first end and a second end, the first end is provided with a positive thread groove, and the second end is provided with a negative thread groove;

the first sliding part is slidably sleeved outside the first end and is suitable for mounting a left eye part, and the second sliding part is slidably sleeved outside the second end and is suitable for mounting a right eye part;

the first bolt is arranged on the first sliding part and partially extends into the forward-rotation thread groove, and the second bolt is arranged on the second sliding part and partially extends into the reverse-rotation thread groove;

when the positive and negative screw rods rotate, the first bolt slides along the positive rotation thread groove, and the second bolt slides along the negative rotation thread groove, so that the first sliding piece and the second sliding piece move oppositely or reversely.

In addition, according to the present invention, the pupil distance adjusting mechanism for an ophthalmic apparatus may further have the following additional technical features:

according to the utility model discloses an embodiment still includes the thumb wheel, the thumb wheel is established on the positive and negative screw rod to supply the user to operate and drive positive and negative screw rod is rotatory.

According to an embodiment of the present invention, the device further comprises a first fixing seat and a second fixing seat, the first fixing seat and the second fixing seat are oppositely disposed in a first direction, and the forward and backward screw rods extend along the first direction; the end part of the first end can be arranged on the first fixed seat in a pivoting mode, and the end part of the second end can be arranged on the second fixed seat in a pivoting mode.

According to an embodiment of the present invention, the device further comprises two guide rods, wherein the two guide rods are arranged between the first fixing seat and the second fixing seat, and are arranged oppositely and parallelly in a second direction, and the second direction is perpendicular to the first direction;

the positive and negative screw rods are positioned between the two guide rods, and the first sliding part and the second sliding part are in sliding fit with the two guide rods.

According to an embodiment of the invention, the toggle wheel is located between the first slider and the second slider.

According to an embodiment of the present invention, the first sliding member is provided with a first through hole and a first threaded hole, and the first threaded hole is perpendicular to and communicates with the first through hole; a second through hole and a second threaded hole are formed in the second sliding piece, and the second threaded hole is perpendicular to and communicated with the second through hole;

the first end passes through the first through hole, and the second end passes through the second through hole;

the first bolt and the second bolt are screws, the first bolt is in threaded fit with the first threaded hole and extends into the forward thread groove, and the second bolt is in threaded fit with the second threaded hole and extends into the reverse thread groove.

On the other hand, according to the utility model discloses eyesight therapeutic equipment includes:

a housing;

the pupil distance adjusting mechanism as described above, which is mounted in the housing;

the left eye light source barrel is used as the left eye component and installed on the first sliding part, and the right eye light source barrel is used as the right eye component and installed on the second sliding part.

According to an embodiment of the present invention, a first positioning member is disposed at the bottom of the left eye light source tube, a first positioning groove is disposed on the first sliding member, and the first positioning member is engaged with the first positioning groove; the bottom of the right eye light source barrel is provided with a second positioning piece, the second sliding piece is provided with a second positioning groove, and the second positioning piece is clamped with the second positioning groove.

According to an embodiment of the present invention, a clamping member is disposed in the housing, and a concave arc-shaped bayonet is disposed on the clamping member and has an arc-shaped clamping edge;

positive and negative screw rod card is established but in the bayonet socket pivot, be equipped with ring groove on the positive and negative screw rod, ring groove with the card is along the block, in order to restrict positive and negative screw rod axial degree of freedom.

According to an embodiment of the present invention, the number of the locking pieces and the annular groove is two;

the two annular clamping grooves are located between the first sliding piece and the second sliding piece, the two annular clamping grooves are correspondingly clamped with the clamping edges of the clamping and stopping pieces respectively, and the poking wheel is located between the two annular clamping grooves.

According to the embodiment of the utility model provides a pupil distance adjustment mechanism and vision therapy apparatus for ophthalmic equipment, utilize positive spiral thread and derotation screw thread on the positive and negative screw rod to cooperate with first bolt and second bolt respectively, when positive and negative screw rod is rotatory, first bolt slides along positive spiral thread groove, the second bolt slides along derotation thread groove, and because first bolt is established on first slider, the second bolt is established on the second slider, so, can drive first slider and second slider in opposite directions motion or reverse motion, this kind of structure, for gear up-and-down rotation regulation structure, gear rack adjusts the structure, screw-nut adjusts the structure, obviously, adjust the precision higher, and, the fit clearance is littleer, therefore, the structure is more reliable and more stable, furthermore, moreover, the steam generator is simple in structure, small in size, be particularly useful for using on the portable wearing formula product.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic structural view of an angle of view of a pupil distance adjusting mechanism for an ophthalmic apparatus according to an embodiment of the present invention;

fig. 2 is a schematic structural view of another view angle of the interpupillary distance adjusting mechanism for an ophthalmic apparatus according to an embodiment of the present invention;

FIG. 3 is an enlarged view of a portion of FIG. 2 at A;

fig. 4 is a sectional view of a pupil distance adjusting mechanism for an ophthalmic apparatus according to an embodiment of the present invention;

FIG. 5 is a schematic view of a visual angle of the vision therapeutic apparatus according to the embodiment of the present invention;

FIG. 6 is a schematic view of another perspective of the vision treatment apparatus according to the embodiment of the present invention;

FIG. 7 is a schematic view of the internal structure of the vision therapeutic apparatus according to the embodiment of the present invention;

FIG. 8 is an exploded view of FIG. 7;

fig. 9 is a partial enlarged view at B in fig. 8;

fig. 10 is a schematic structural view of a left eye light source tube and a right eye light source tube in the vision therapeutic apparatus of the present invention.

Reference numerals:

10. a positive and negative screw;

d10, first end;

d11, a second end;

101. a positive spiral thread groove;

102. a reverse-rotation thread groove;

103. an annular neck;

11. a first slider;

111. a first through hole;

112. a first threaded hole;

113. a first positioning groove;

12. a second slider;

13. a first latch;

14. a second bolt;

15. a first fixed seat;

16. a second fixed seat;

17. a poking wheel;

18. a guide bar;

20. a housing;

201. a fastener;

2011. a bayonet;

2012. clamping edges;

30. a left eye light source barrel;

301. a first positioning member;

31. a right eye light source barrel;

311. a second positioning member.

The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention, and all other embodiments obtained by those skilled in the art without creative efforts based on the embodiments of the present invention belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "circumferential", "radial", and the like, indicate the orientation or positional relationship indicated based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The pupil distance adjusting mechanism and the vision therapeutic apparatus for the ophthalmologic apparatus according to the embodiment of the present invention will be described in detail with reference to the accompanying drawings.

Referring to fig. 1 to 4, a pupil distance adjusting mechanism for an ophthalmic apparatus according to an embodiment of the present invention includes a positive and negative screw 10, a first slider 11, a second slider 12, a first plug 13, and a second plug 14.

Specifically, the positive and negative screw 10 has a first end D10 and a second end D11, the first end D10 is provided with a positive thread groove 101, and the second end D11 is provided with a negative thread groove 102, that is, opposite thread grooves are provided at two ends of the positive and negative screw 10.

The first sliding member 11 slidably fits over the first end D10 and is suitable for installing a left eye component, the second sliding member 12 slidably fits over the second end D11 and is suitable for installing a right eye component, wherein the left eye component and the right eye component are components of an ophthalmic apparatus, such as a left light source tube and a right light source tube of a vision therapeutic apparatus, the left eye component can slide with the first sliding member 11, and the right eye component can slide with the second sliding member 12.

The first bolt 13 is installed on the first sliding part 11 and partially extends into the forward thread groove 101, and the second bolt 14 is installed on the second sliding part 12 and partially extends into the reverse thread groove 102. When the forward and reverse screw rods 10 rotate, the first bolt 13 slides along the forward thread groove 101, and the second bolt 14 slides along the reverse thread groove 102, so that the first slide member 11 and the second slide member 12 move towards each other or in reverse.

That is, the first sliding member 11 is provided with a first latch 13, the second sliding member 12 is provided with a second latch 14, the first latch 13 is slidably engaged with the forward-rotation thread groove 101 of the first end D10 of the forward and reverse screw rod 10, and the second latch 14 is slidably engaged with the reverse-rotation thread groove 102 of the second end D11 of the forward and reverse screw rod 10. When the forward and reverse screw 10 rotates in one direction, the first pin 13 slides along the forward thread groove 101, the second pin 14 slides along the reverse thread groove 102, and the first pin 13 and the second pin 14 gradually approach to each other, so that the first slider 11 and the second slider 12 can be driven to move in opposite directions, that is, the distance between the left-eye component and the right-eye component can be reduced, when the forward and reverse screw 10 rotates in the other direction (opposite direction), the first pin 13 slides along the forward thread groove 101, the second pin 14 slides along the reverse thread groove 102, and the first pin 13 and the second pin 14 gradually move away, so that the first slider 11 and the second slider 12 can be driven to move in opposite directions, that is, the distance between the left-eye component and the right-eye component can be increased, and the distance between the left-eye component and the right-eye component can be adjusted, to adapt it to the interpupillary distance.

According to the pupil distance adjusting mechanism for the ophthalmic device provided by the embodiment of the utility model, the forward-rotation thread and the backward-rotation thread on the forward-reverse screw rod 10 are respectively matched with the first bolt 13 and the second bolt 14, when the forward-reverse screw rod 10 rotates, the first bolt 13 slides along the forward-rotation thread groove 101, the second bolt 14 slides along the reverse-rotation thread groove 102, and since the first pin 13 is provided on the first sliding member 11, the second pin 14 is provided on the second sliding member 12, therefore, the first slide member 11 and the second slide member 12 can be driven to move toward each other or in the opposite direction, compared with a gear up-and-down rotation adjusting structure, a gear rack adjusting structure and a lead screw nut adjusting structure, the structure has the advantages that the adjusting precision is obviously higher, and, the fit clearance is littleer, consequently, the structure is more reliable and more stable, in addition, simple structure, small is particularly useful for using on the portable wearing formula product.

Referring to fig. 1 to 2, in an embodiment of the present invention, the interpupillary distance adjusting mechanism further includes a toggle wheel 17, the toggle wheel 17 is disposed on the positive and negative screw rod 10 for a user to operate and drive the positive and negative screw rod 10 to rotate.

In use, a user can drive the forward and reverse screw rods 10 to rotate by rotating the toggle wheel 17, and then drive the first sliding part 11 and the second sliding part 12 to move relatively through the forward and reverse screw rods 10, so that the distance between the left eye part and the right eye part can be adjusted, and the adjustment operation of the user is facilitated.

In an embodiment of the present invention, the pupil distance adjusting mechanism further includes a first fixing seat 15 and a second fixing seat 16, the first fixing seat 15 and the second fixing seat 16 are oppositely disposed in a first direction, and the positive and negative screws 10 extend along the first direction; the end of the first end D10 is pivotally disposed on the first fixing base 15, and the end of the second end D11 is pivotally disposed on the second fixing base 16.

That is to say, the both ends of positive and negative screw rod 10 can be pivotally established respectively on first fixing base 15 and second fixing base 16, and for example the both ends of first fixing base 15 and second fixing base 16 are equipped with the through-hole respectively, and the diameter of through-hole and the diameter adaptation at positive and negative screw rod 10 both ends, the both ends of positive and negative screw rod 10 are worn to establish in the through-hole and rotatable. In a specific application, the first fixing seat 15 and the second fixing seat 16 may be mounted on a housing 20 of the ophthalmic apparatus, so as to realize the fixed mounting of the interpupillary distance adjusting mechanism, and thus, facilitate the mounting and fixing of the interpupillary distance adjusting mechanism.

Referring to fig. 1 to 2, in some embodiments of the present invention, the pupil distance adjusting mechanism further includes two guiding rods 18, two guiding rods 18 are disposed between the first fixing seat 15 and the second fixing seat 16, and two guiding rods 18 are disposed oppositely and in parallel in a second direction, which is perpendicular to the first direction. The forward and reverse screw rods are located between the two guide rods 18, and the first sliding part 11 and the second sliding part 12 are in sliding fit with the two guide rods 18.

In this embodiment, the guide rods 18 are respectively arranged on two sides of the positive and negative screw rod 10, and the first sliding part 11 and the second sliding part 12 are both in sliding fit with the two guide rods 18, so that when the first sliding part 11 and the second sliding part 12 slide, the first sliding part 11 and the second sliding part 12 can be ensured to stably and reliably slide along the axial direction of the positive and negative screw rod 10 by using the guiding function and the balancing function of the two guide rods 18, and further, the stable and reliable spacing adjustment is ensured.

Preferably, the dial wheel 17 is located between the first sliding member 11 and the second sliding member 12, so that the installation of the dial wheel 17 is convenient, and the dial wheel 17 is located between the first sliding member 11 and the second sliding member 12, so that the operation is also convenient.

Referring to fig. 4, in an embodiment of the present invention, a first through hole 111 and a first threaded hole 112 are formed on the first sliding member 11, and the first threaded hole 112 is perpendicular to and communicates with the first through hole 111; and a second through hole and a second threaded hole are formed in the second sliding part 12, and the second threaded hole is perpendicular to and communicated with the second through hole.

The first end D10 passes through the first through hole 111, and the second end D11 passes through the second through hole. The first bolt 13 and the second bolt 14 are screws, the first bolt 13 is in threaded fit with the first threaded hole 112 and extends into the forward threaded groove, and the second bolt 14 is in threaded fit with the second threaded hole and extends into the reverse threaded groove.

That is to say, in this embodiment, the first bolt 13 and the second bolt 14 both adopt screws, the first threaded hole 112 is arranged on the first sliding part 11, and the second threaded hole is arranged on the second sliding part 12, so that the first bolt 13 can be threadedly mounted in the first threaded hole 112, and the second bolt 14 can be threadedly mounted in the second threaded hole, which is very convenient to mount and also convenient to adjust, so as to ensure that the first bolt 13 is inserted into the forward threaded groove to realize sliding fit, and the second bolt 14 is inserted into the reverse threaded groove to realize sliding fit.

Referring to fig. 5 to 10, the vision treatment apparatus according to the embodiment of the present invention includes a housing 20, a pupil distance adjusting mechanism, a left eye light source cylinder 30 and a right eye light source cylinder 31.

Wherein the housing 20 may be configured as a box-like structure or the like which can be held or worn in front of the face of the user, the interpupillary distance adjusting mechanism being mounted in the housing 20; the left-eye light source barrel 30 is mounted as the left-eye component on the first slider 11, and the right-eye light source barrel 31 is mounted as the right-eye component on the second slider 12.

In use, a user can drive the forward and backward screw rod 10 to rotate by operating the dial wheel 17, when the forward and backward screw rod 10 rotates, the first bolt 13 slides along the forward thread groove 101, the second bolt 14 slides along the backward thread groove 102, the first sliding member 11 and the second sliding member 12 can move in opposite directions or in opposite directions, and the left eye light source barrel 30 mounted on the first sliding member 11 and the right eye light source barrel 31 mounted on the second sliding member 12 can synchronously move relative to each other to adjust the distance.

The vision therapeutic apparatus provided by the embodiment of the utility model is provided with the pupil distance adjusting mechanism, and utilizes the positive-rotation thread and the negative-rotation thread on the positive-negative screw rod 10 to be respectively matched with the first bolt 13 and the second bolt 14, when the forward-reverse screw rod 10 rotates, the first bolt 13 slides along the forward-rotation thread groove 101, the second bolt 14 slides along the reverse-rotation thread groove 102, and since the first pin 13 is provided on the first sliding member 11, the second pin 14 is provided on the second sliding member 12, therefore, the first slide member 11 and the second slide member 12 can be driven to move toward each other or in the opposite direction, compared with a gear up-and-down rotation adjusting structure, a gear rack adjusting structure and a lead screw nut adjusting structure, the structure has the advantages that the adjusting precision is obviously higher, and, the fit clearance is littleer, consequently, the structure is more reliable and more stable, in addition, simple structure, small is particularly useful for using on the portable wearing formula product.

Referring to fig. 4 and 10, in an embodiment of the present invention, a first positioning member 301 is disposed at the bottom of the left-eye light source cylinder 30, a first positioning groove 113 is disposed on the first sliding member 11, and the first positioning member 301 is engaged with the first positioning groove 113; the bottom of the right-eye light source barrel 31 is provided with a second positioning part 311, the second sliding part 12 is provided with a second positioning groove, and the second positioning part 311 is clamped with the second positioning groove.

When the light source barrel 30 for the left eye and the light source barrel 31 for the right eye are mounted, the first positioning piece 301 can be correspondingly inserted into the first positioning groove 113, and the second positioning piece 311 can be inserted into the second positioning groove, so that the light source barrel 30 for the left eye and the first sliding piece 11 can be mounted quickly, and the light source barrel 31 for the right eye and the second sliding piece 12 can be mounted conveniently. In addition, fasteners such as screws can be used for fixedly locking the left eye light source barrel 30 and the first sliding part 11 and fixedly locking the right eye light source barrel 31 and the second sliding part 12, so that the left eye light source barrel 30 and the first sliding part 11 are reliably connected, and the right eye light source barrel 31 and the second sliding part 12 are reliably connected.

Referring to fig. 8 to 9, in an embodiment of the present invention, a clamping unit 201 is disposed in the housing 20, a concave arc-shaped bayonet 2011 is disposed on the clamping unit 201, and the bayonet 2011 has an arc-shaped clamping edge 2012.

Positive and negative screw rod 10 card is established but just pivot in the bayonet 2011, be equipped with ring groove 103 on the positive and negative screw rod, ring groove 103 with 2012 blocks are followed to the card, in order to restrict positive and negative screw rod axial degree of freedom.

In this embodiment, on the one hand, bayonet 2011 plays the supporting role to positive and negative screw rod 10 on the stop 201, and on the other hand, ring groove 103 on the positive and negative screw rod and the card on the stop 201 along 2012 blocks, restrict the axial degree of freedom of positive and negative screw rod, so, can make positive and negative screw rod 10 installation reliable, the structure is more firm.

Advantageously, the number of the clamping parts 201 and the ring-shaped clamping grooves 103 is two, two of the ring-shaped clamping grooves 103 are located between the first sliding part 11 and the second sliding part 12, and the two ring-shaped clamping grooves 103 are correspondingly clamped with the clamping edges 2012 on the two clamping parts 201 respectively, and the toggle wheel 17 is located between the two ring-shaped clamping grooves 103, so that the positive and negative screw rod 10 is more stable and reliable.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

The above only be the preferred embodiment of the utility model discloses a not consequently restriction the utility model discloses a patent range, all are in the utility model discloses a conceive, utilize the equivalent structure transform of what the content was done in the description and the attached drawing, or direct/indirect application all is included in other relevant technical field the utility model discloses a patent protection within range.

Claims

1. The utility model provides a interpupillary distance adjustment mechanism for ophthalmic device which characterized in that includes:

2. The interpupillary distance adjusting mechanism for ophthalmic device of claim 1, further comprising a dial wheel, wherein said dial wheel is disposed on said positive and negative screws for user operation to drive said positive and negative screws to rotate.

3. The interpupillary distance adjusting mechanism for an ophthalmic apparatus according to claim 1, further comprising a first fixing base and a second fixing base, wherein the first fixing base and the second fixing base are oppositely disposed in a first direction, and the forward and backward screw rods extend in the first direction; the end part of the first end can be arranged on the first fixed seat in a pivoting mode, and the end part of the second end can be arranged on the second fixed seat in a pivoting mode.

4. The interpupillary distance adjustment mechanism for ophthalmic apparatus of claim 3, further comprising two guide rods, wherein the two guide rods are disposed between the first and second holders, and are disposed oppositely and in parallel in a second direction, the second direction being perpendicular to the first direction;

5. The interpupillary distance adjustment mechanism for an ophthalmic device of claim 2, wherein the dial wheel is located between the first and second slides.

6. The interpupillary distance adjusting mechanism for an ophthalmic apparatus as claimed in claim 1, wherein the first sliding member is provided with a first through hole and a first threaded hole, the first threaded hole being perpendicular to and communicating with the first through hole; a second through hole and a second threaded hole are formed in the second sliding piece, and the second threaded hole is perpendicular to and communicated with the second through hole;

7. A vision treatment apparatus, comprising:

a housing;

the interpupillary distance adjustment mechanism of claim 2 or 5, mounted within the housing;

8. The vision therapeutic apparatus of claim 7, wherein the bottom of the left eye light source cylinder is provided with a first positioning member, the first sliding member is provided with a first positioning groove, and the first positioning member is engaged with the first positioning groove; the bottom of the right eye light source barrel is provided with a second positioning piece, the second sliding piece is provided with a second positioning groove, and the second positioning piece is clamped with the second positioning groove.

9. A vision treatment apparatus according to claim 7, wherein a locking member is provided in said housing, said locking member having a concave arc-shaped notch with an arc-shaped edge;

10. A vision treatment apparatus as recited in claim 9, wherein there are two said detents and two said circumferential grooves;