CN210872850U - Interpupillary distance adjustment mechanism and portable visual training appearance - Google Patents
Interpupillary distance adjustment mechanism and portable visual training appearance Download PDFInfo
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- CN210872850U CN210872850U CN201921358563.2U CN201921358563U CN210872850U CN 210872850 U CN210872850 U CN 210872850U CN 201921358563 U CN201921358563 U CN 201921358563U CN 210872850 U CN210872850 U CN 210872850U
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Abstract
The utility model provides a pupil distance adjusting mechanism and a portable vision training instrument, which comprises an adjusting hand wheel, wherein the middle part of the adjusting hand wheel is provided with a shaft, and one end of the shaft is provided with a gear; the rack mechanism comprises a first rack and a second rack which can be meshed with the gear for transmission, the first rack is fixedly connected with the first base, and the second rack is connected with the second base. The pupil distance adjusting mechanism is simplified, the space arranged in the shell is saved, and the vision training instrument has small volume and is convenient to carry; further, a portable vision training instrument is provided, so that the portable vision training instrument is small in size and convenient to carry, and a user can more conveniently realize myopia prevention and control by adopting a mode of irradiating eyeballs by a light source.
Description
Technical Field
The utility model relates to an instrument technical field for preventing and controlling myopia development, concretely relates to a interpupillary distance adjustment mechanism for adjusting distance between the shading body to and be applied to this interpupillary distance adjustment mechanism's visual training appearance.
Background
The incidence of myopia of teenagers is very high in China, and according to investigation, the incidence of myopia of teenagers 15 years old in China is 78.5%. Studies have shown that increasing the production of Dopamine (DA) in the retina can have a significant impact on slowing and inhibiting the progression of the eye toward myopia.
Dopamine is a neurotransmission substance used to help cells deliver pulsatile chemicals. A large body of data can be used to support that dopamine is one of the retinal neurotransmitters involved in the signaling cascade. Dopamine receptors D1-D5 are present on the retina. Dopamine will regulate the axial growth of the eyeball to the near-sighted direction or the far-sighted direction through controlling the refractive development of eyeball structures such as the development of scleral structures through the activation and mediation of dopamine receptors.
The applicant finds that the dopamine level of retina can be improved by increasing the light intensity through long-time research on the relationship between illumination and myopia development and academic tracking in the field of ophthalmic medical treatment, and the mechanism of the dopamine-increasing mechanism is that illumination passes through a retina light-feeding passage, so that no protuberant cells on the retina generate and release dopamine. In experimental study on guinea pigs, in a comparison experiment between a highlight group and a dim group, the dopamine content of the retina of the guinea pig in the highlight group is obviously increased, the axial direction of an eyeball is shortened, and the diopter of the retina is obviously more prone to hyperopia. However, continuous strong light irradiation does not further increase the dopamine content, and the diopter changes further. This indicates that dopamine production and release are not only related to the intensity of light.
According to the research of the applicant in recent years, the mechanism of the light stimulation of the retina to inhibit the development trend of myopia is that light with specific wavelength irradiates light-feeding bipolar cells on the retina to release glutamic acid substances to stimulate amacrine-free cells to release dopamine. The released dopamine will act on dopamine D1 and D2 receptors widely distributed on the retina, and dopamine D2 and D4 receptors distributed in the Retinal Pigment Epithelium (RPE). The dopamine acting on the receptors results in flattening of corneal curvature, deeper anterior, thinner lens, and proliferation of scleral chondrocytes, which results in the axial hyperopia of the eye, inhibiting myopia. Based on the above mechanism, the applicant found that factors such as the wavelength of light applied to the retina, the power of the light, the duration of interruption of the light and the spatial area of the light applied to the retina, rather than just the intensity of the light, all combine to affect dopamine production and release and myopia inhibition of the eye.
Ophthalmic therapeutic devices designed to treat myopia and amblyopia by irradiating the retina with light have existed for many years. For example, CN107260504A, entitled apparatus for treating amblyopia and/or myopia, discloses a device for treating myopia or amblyopia by illuminating the eye with light from an eyepiece using a light source. The prior art has the problems that the product is large in size and cannot be carried in a portable mode.
In order to solve the above problems, the applicant has further studied and found that the whole structure of the interpupillary distance adjusting mechanism needs to be simplified in order to reduce the size of the instrument, specifically, the interpupillary distance adjusting mechanism is connected to the light source module (the light source is generated to irradiate the eyeballs) and the light shielding tube, and the distances between the light source modules and between the light shielding tubes need to be adjusted by the interpupillary distance adjusting mechanism because the distances between the eyeballs of different people are different. In the conventional instrument, the problems of the volume and the internal arrangement space of the whole instrument are not considered. The design of the pupil distance adjusting mechanism is relatively extensive and is not simple enough. In the interpupillary distance adjustment mechanism for ophthalmology medical equipment disclosed in chinese utility model patent with publication number CN209075129U, two frame bodies, two hand wheels, a cantilever frame body and two adjusting hand wheels are included, and the above structure is obviously not simple enough and is not suitable for the demand of portable instrument.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a interpupillary distance adjustment mechanism and portable visual training appearance, its purpose provides the interpupillary distance adjustment mechanism that a structure retrencied more and installs in the middle of portable visual training appearance, and the visual training appearance volume of be reduces portable.
A pupil distance adjusting mechanism, which comprises,
the middle part of the adjusting hand wheel is provided with a shaft, and one end of the shaft is provided with a gear;
the rack mechanism comprises a first rack and a second rack which can be meshed with the gear for transmission, the first rack is fixedly connected with the first base, and the second rack is connected with the second base.
Furthermore, the first base further comprises a first sliding mechanism, and the first base can move along the first sliding mechanism.
Furthermore, the first sliding mechanism comprises a clamping groove fixedly connected with the first seat body and a guide rod, and the guide rod is connected with the clamping groove in an adaptive manner.
The utility model discloses a first pedestal and second pedestal are one and have the shell structure of cavity in, and first rack and second rack are connected with first pedestal and second pedestal respectively. The adjusting hand wheel rotates to drive the shaft and the gear to rotate, and the first rack and the second rack are respectively meshed with the gear in the upper direction and the lower direction of the gear, so that when the gear rotates, the first rack and the second rack move relatively close to or relatively separated from each other. Meanwhile, the first rack and the second rack drive the first seat body and the second seat body to move relatively close to or separate from each other respectively.
The first sliding mechanism is a mechanism for guiding and sliding the seat body, the utility model discloses in can be a mechanism that the direction of the clamping groove on the seat body and the guide bar is limited, its purpose is to make the first seat body move along the direction of the bar. The direction of the guide rod relative to the seat body is not limited, and the guide rod can be positioned at the lower position of the seat body or at other direction positions.
Furthermore, the second seat body further comprises a second sliding mechanism, and the second seat body can move along the second sliding mechanism.
Furthermore, the second sliding mechanism comprises a clamping groove fixedly connected with the second seat body and a guide rod, and the guide rod is connected with the clamping groove in an adaptive manner.
A portable vision training instrument comprises a portable vision training device,
a housing;
the pupil distance adjusting mechanism is arranged at one end inside the shell and comprises an adjusting hand wheel, a shaft penetrates through the middle part of the adjusting hand wheel, a gear is arranged at one end of the shaft, and the rack mechanism comprises a first rack and a second rack which can be meshed with the gear for transmission, wherein the first rack is fixedly connected with the first seat body, and the second rack is connected with the second seat body;
and the number of the first and second groups,
the light source device is arranged in the first seat body and the second seat body;
a tube body.
An eyesight training instrument using the pupil distance adjusting mechanism. The pupil distance adjusting mechanism is arranged at one end inside the shell. The light source device is arranged in the first seat body and the second seat body.
The light source device comprises a light source generator, and the light source generator is arranged on the circuit board;
the light source generator can penetrate through the through holes and partially protrude out of the plane, and the circuit board is arranged in the first seat body and the second seat body. The relative distance between the first seat body and the second seat body is adjusted by rotating the adjusting hand wheel, and then the relative distance between the two light beams sent by the light source generator is adjusted to meet the requirements of different pupillary distances of different users.
Furthermore, a clamping groove is formed in the first seat body and/or the second seat body, a guide rod is fixed inside the shell, and the clamping groove is connected with the guide rod in an adaptive mode.
Preferably, the casing in be provided with the fixing base, the fixing base set up porosely, adjusting hand wheel's axle run through in adjusting hand wheel's middle part and the hole of access fixing base, rotatory adjusting hand wheel the axle rotate thereupon and drive the gear rotate.
Preferably, the connection with the control terminal is through a wired or wireless mode.
Preferably, the laser generator is a laser copper cylinder.
The utility model has the advantages that the pupil distance adjusting mechanism is simplified, the space arranged in the shell is saved, and the visual training instrument has small volume and is convenient to carry; further, a portable vision training instrument is provided, so that the portable vision training instrument is small in size and convenient to carry, and a user can more conveniently realize myopia prevention and control by adopting a mode of irradiating eyeballs by a light source.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below.
Fig. 1 is a schematic structural diagram of a pupil distance adjusting mechanism of the present invention;
fig. 2 is a schematic structural diagram of a middle interpupillary distance adjusting mechanism of the present invention;
FIG. 3 is a schematic view of the portable vision training instrument of the present invention;
FIG. 4 is a schematic view of the portable vision training instrument of the present invention;
FIG. 5 is a schematic view of the internal structure of the portable vision training device of the present invention;
fig. 6 is a schematic structural diagram of the middle light source device of the present invention.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
The first embodiment is as follows: a pupil distance adjusting mechanism, which comprises,
the device comprises an adjusting hand wheel 1, wherein a shaft 2 is arranged in the middle of the adjusting hand wheel 1, and a gear 3 is arranged at one end of the shaft 2;
the rack mechanism 4 includes a first rack 41 and a second rack 42 capable of engaging with the gear, the first rack 41 is fixedly connected with the first seat 51, and the second rack 42 is connected with the second seat 52.
As can be seen from fig. 1 and 2, the structure and shape of the entire interpupillary distance adjusting mechanism. In the present embodiment, the first rack 41 and the second rack 42 are disposed above and below the gear 3 and engaged with the gear 3. The first rack 41 is fixed to the first seat 51, the second rack 42 is fixed to the second seat 52, and when the adjusting handwheel 1 is rotated to drive the shaft 2 to rotate, the gear 3 sleeved on the shaft 2 rotates along with the shaft, and the first rack 41 and the second rack 42 which are arranged above and below the gear 3 move relatively close to or separate from each other to drive the first seat 51 and the second seat 52 to move relatively close to or separate from each other.
As shown in fig. 1, in order to further control the movement guide of the first fastening structure 51, a first clamping groove 61 and a first guide rod 62 are fixedly disposed on the first fastening structure 51, and the first guide rod 62 is fittingly connected to the first clamping groove 61. The second clamping groove 71 is fixedly connected to the second seat 52, and the second guide rod 72 is connected to the second clamping groove 71 in a fitting manner.
In this embodiment, the first fastening structure 51 and the second fastening structure 52 are a housing structure having a cavity therein, and the first rack 41 and the second rack 42 are respectively connected to the first fastening structure 51 and the second fastening structure 52. The adjusting hand wheel 1 rotates to drive the shaft 2 and the gear 3 to rotate, and the first rack 41 and the second rack 42 are respectively meshed with the gear in the upper direction and the lower direction of the gear 3, so that when the gear 3 rotates, the first rack 41 and the second rack 42 move relatively close to each other or relatively separate from each other. Meanwhile, the first rack 41 and the second rack 42 respectively drive the first seat 51 and the second seat 52 to move relatively close to or relatively separate from each other. The first seat 51 and the second seat 52 in this embodiment can both house a light emitting device therein.
Example two: a portable vision training instrument, which applies the pupil distance adjusting mechanism of the first embodiment, the appearance of which is shown in figures 3 and 4, and also comprises,
a housing 8;
a pupil distance adjusting mechanism arranged at one end inside the shell 8, wherein the pupil distance adjusting mechanism 14 comprises (see the structure of figures 1 and 2),
the middle part of the adjusting hand wheel is provided with a shaft in a penetrating way, one end of the shaft is provided with a gear, and the rack mechanism comprises a first rack and a second rack which can be meshed with the gear for transmission, the first rack is fixedly connected with the first seat body, and the second rack is connected with the second seat body;
and the number of the first and second groups,
the light source device 9 is arranged in the first seat body and the second seat body;
the tube 10, the light generated by the light source device 9 will pass through from one end of the tube 10 to the other.
The pupil distance adjusting mechanism is arranged at one end inside the shell. The light source device is arranged in the first seat body and the second seat body.
As shown in fig. 6, the light source device 9 includes a laser generator 91 disposed on a circuit board 92; through holes are formed in a plane of the first seat body and a plane of the second seat body of the pupil distance adjusting mechanism, the light source generator 91 can penetrate through the through holes and partially protrudes out of the plane, and the circuit board 92 is arranged in the first seat body and the second seat body. The relative distance between the first seat body and the second seat body is adjusted by rotating the adjusting hand wheel, and then the relative distance between the two light beams sent by the light source generator is adjusted to meet the requirements of different pupillary distances of different users.
Furthermore, a clamping groove is formed in the first seat body and/or the second seat body, a guide rod is fixed inside the shell, and the clamping groove is connected with the guide rod in an adaptive mode. The guide rod is fixed inside the shell.
The casing in be provided with fixing base 11, the fixing base set up porosely, adjusting hand wheel's axle run through in adjusting hand wheel's middle part and the hole of access fixing base, rotatory adjusting hand wheel the axle rotate thereupon and drive gear revolve.
The embodiment further comprises a control circuit board 12, wherein the control circuit board 12 is fixed on the upper portion of the inner side of the casing 8 and is mainly used for controlling the opening and closing of the instrument and realizing the basic control function. A battery 13 is disposed in the middle of the housing 8 and externally connected to the USB port. The control circuit board 12 is connected with the control terminal in a wired or wireless manner.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A pupil distance adjusting mechanism, which is characterized by comprising,
the middle part of the adjusting hand wheel is provided with a shaft, and one end of the shaft is provided with a gear;
the rack mechanism comprises a first rack and a second rack which can be meshed with the gear for transmission, the first rack is fixedly connected with the first base, and the second rack is connected with the second base.
2. The interpupillary distance adjusting mechanism of claim 1, wherein said first holder further comprises a first sliding mechanism, said first holder being movable along said first sliding mechanism.
3. The interpupillary distance adjusting mechanism of claim 2, wherein said first sliding mechanism comprises a clamping groove fixedly connected to the first holder, and a guiding rod, said guiding rod being fittingly connected to the clamping groove.
4. The interpupillary distance adjusting mechanism of claim 2, wherein said second holder further comprises a second sliding mechanism, said second holder being movable along said second sliding mechanism.
5. The interpupillary distance adjusting mechanism of claim 4, wherein said second sliding mechanism comprises a clamping groove fixedly connected to the second base, and a guiding rod, said guiding rod being fittingly connected to the clamping groove.
6. A portable vision training instrument is characterized in that the instrument comprises,
a housing;
a pupil distance adjusting mechanism arranged at one end in the shell, the pupil distance adjusting mechanism comprises,
a shaft penetrates through the middle part of the adjusting hand wheel, a gear is arranged at one end of the shaft,
the rack mechanism comprises a first rack and a second rack which can be meshed with the gear for transmission, the first rack is fixedly connected with the first seat body, and the second rack is connected with the second seat body;
and the number of the first and second groups,
the light source device is arranged in the first seat body and the second seat body;
a tube body.
7. The portable vision training apparatus of claim 6, wherein the light source device comprises a light source generator, the light source generator being disposed on the circuit board;
the light source generator can penetrate through the through holes and partially protrude out of the plane, and the circuit board is arranged in the first seat body and the second seat body.
8. The portable vision training instrument of claim 7, wherein a clamping groove is formed on the first seat and/or the second seat, a guide rod is fixed inside the housing, and the clamping groove is connected with the guide rod in a matching manner.
9. A portable eyesight training instrument as claimed in any one of claims 6 to 8, wherein the housing is provided with a fixing base, the fixing base is provided with a hole, the shaft of the adjusting handwheel penetrates through the middle of the adjusting handwheel and is inserted into the hole of the fixing base, and the shaft of the adjusting handwheel is rotated to drive the gear to rotate.
10. The portable vision training apparatus of claim 9, wherein the portable vision training apparatus is connected with the control terminal in a wired or wireless manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201921358563.2U CN210872850U (en) | 2019-08-21 | 2019-08-21 | Interpupillary distance adjustment mechanism and portable visual training appearance |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921358563.2U CN210872850U (en) | 2019-08-21 | 2019-08-21 | Interpupillary distance adjustment mechanism and portable visual training appearance |
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| CN210872850U true CN210872850U (en) | 2020-06-30 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114099984A (en) * | 2021-11-29 | 2022-03-01 | 苏州宣嘉光电科技有限公司 | Vision training device and vision training instrument |
| CN114632268A (en) * | 2022-03-18 | 2022-06-17 | 温州眼视光国际创新中心 | Two-dimensional adjustable optical double-lens holder |
-
2019
- 2019-08-21 CN CN201921358563.2U patent/CN210872850U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114099984A (en) * | 2021-11-29 | 2022-03-01 | 苏州宣嘉光电科技有限公司 | Vision training device and vision training instrument |
| WO2023092753A1 (en) * | 2021-11-29 | 2023-06-01 | 苏州宣嘉光电科技有限公司 | Vision training apparatus and vision training instrument |
| CN114632268A (en) * | 2022-03-18 | 2022-06-17 | 温州眼视光国际创新中心 | Two-dimensional adjustable optical double-lens holder |
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