CN214382487U - Double-screen opening adjusting mechanism and vision training instrument - Google Patents
Double-screen opening adjusting mechanism and vision training instrument Download PDFInfo
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- CN214382487U CN214382487U CN202022808567.5U CN202022808567U CN214382487U CN 214382487 U CN214382487 U CN 214382487U CN 202022808567 U CN202022808567 U CN 202022808567U CN 214382487 U CN214382487 U CN 214382487U
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Abstract
The utility model provides a double-screen opening degree adjusting mechanism, which comprises a base, a central gear set, a first fixed gear, a second fixed gear and a transition gear set; the base is provided with a fixed shaft extending along the hinged shafts of the two shells, and the fixed shaft is rotationally connected with the first shell and is provided with a connecting plate; the central gear set is rotationally connected to the fixed shaft; the first fixed gear and the second fixed gear are both connected with the central gear set; the transition gear set is arranged on the connecting plate and is connected with the central gear set; the central gear set and the transition gear set are used for cooperatively transmitting torque between the first fixed gear and the second fixed gear, so that the first fixed gear and the second fixed gear simultaneously rotate around the central gear set in opposite directions. The utility model provides a two screen aperture adjustment mechanism, when adjusting screen aperture, two screens can swing in step, easy operation is convenient. The utility model also provides an eyesight training appearance that has adopted above-mentioned double screen aperture adjustment mechanism.
Description
Technical Field
The utility model belongs to the technical field of the eyesight training equipment, more specifically say, relate to a two screen aperture adjustment mechanism and eyesight training appearance.
Background
At present, as the use rate of teenagers and children for electronic products is higher and higher, more and more children with eyesight problems such as myopia, strabismus, amblyopia and the like are available, and the eyesight problems of the children are discovered and intervened early so as to perform eyesight recovery training in time. In order to make the training program present the natural depth of field effect, a vision training instrument has been developed that uses two screens arranged in an angle structure to synchronously display the training program, and for trainers with different widths of visual field, the angle of the two screens needs to be adjusted to a proper opening degree, a common screen opening degree adjustment method is to swing one of the screens or respectively swing the two screens for adjustment, and this adjustment method cannot ensure the angle change of the two screens to be consistent, so the visual angle difference between the two screens is easily observed by the trainers after the adjustment is completed, and the trainers need to readjust the training sitting posture or move the vision training instrument as a whole again to ensure that the two screens can be observed with the same visual angle for training, and the adjustment process of the opening degree (angle) of the screens is complex and the operation is very inconvenient.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a double screen aperture adjustment mechanism and visual training appearance aims at solving the problem that the contained angle adjustment degree of difficulty is big, the inconvenient operation of two screens of prior art's visual training appearance.
In order to achieve the above object, the utility model adopts the following technical scheme: the double-screen opening adjusting mechanism comprises a base, a central gear set, a first fixed gear, a second fixed gear and a transition gear set; the base is used for fixedly supporting the vision training instrument on the training table, and is provided with a fixed shaft extending along a hinged shaft of two shells of the vision training instrument, the fixed shaft is rotatably connected with the first shell, and the top end of the fixed shaft penetrates into the first shell and is provided with a connecting plate; the central gear set is arranged in the first shell and is rotationally connected to the fixed shaft; the first fixed gear is fixedly connected in the first shell and is connected with the central gear set; the second fixed gear is fixedly connected in a second shell of the vision training instrument and is connected with the central gear set; the transition gear group is arranged on the connecting plate and is connected with the central gear group; the central gear set and the transition gear set are used for cooperatively transmitting torque between the first fixed gear and the second fixed gear, so that the first fixed gear and the second fixed gear simultaneously rotate around the central gear set in opposite directions.
As another embodiment of the present application, a sun gear set includes a first sun gear and a second sun gear; the first central gear is rotatably sleeved on the fixed shaft, is meshed with the first fixed gear and is connected with the transition gear set; the second central gear is rotatably sleeved on the fixed shaft and is arranged at an interval from the top to the bottom with the first central gear, and the second central gear is meshed with the second fixed gear and is connected with the transition gear set.
As another embodiment of the present application, a transition gear set includes a first transition gear and a second transition gear; the first transition gear is rotationally connected to the connecting plate and meshed with the first central gear; the second transition gear is rotatably connected to the connecting plate, meshed with the first transition gear and also meshed with the second central gear.
As another embodiment of the present application, the second transition gear is a step gear, wherein first step gear teeth of the step gear are engaged with the first transition gear, and second step gear teeth of the step gear are engaged with the second sun gear.
As another embodiment of the present application, the first fixed gear is configured to be integrally formed with the first housing; the second fixed gear is used for being integrally formed with the second shell.
As another embodiment of the present application, a non-slip mat is disposed on the bottom surface of the base.
As another embodiment of the application, a clamping groove is formed in the base and used for being clamped on a positioning table on the training table.
The utility model provides a two screen aperture adjustment mechanism's beneficial effect lies in: compared with the prior art, the double-screen opening adjusting mechanism of the utility model can fixedly support the vision training instrument on the training desk through the base, because the fixed shaft extends along the axial direction of the articulated shaft of the first shell and the second shell, namely the fixed shaft is coaxial with the articulated shaft, both the first shell and the second shell can swing by taking the fixed shaft as the center, when two screens arranged on the two shells need to be opened or closed, only the first shell (or the second shell) needs to be moved backwards or forwards, so that the first fixed gear (or the second fixed gear) rotates around the central gear set, the second fixed gear (or the first fixed gear) is driven to reversely rotate around the central gear set through the torque transmission action of the central gear set and the transition gear set, thereby the second shell (or the first shell) can be driven to synchronously open or close, and the swinging angles of the first shell and the second shell can be consistent in the action process, the vision training instrument is not required to be moved integrally, the trainer is not required to adjust the training posture, the consistency of the included angle between the sight line and the two screens can be kept, the adjusting process is simple, and the operation is convenient.
The utility model also provides an eyesight training appearance, including mutual articulated first casing and second casing, locate first training subassembly on the first casing, locate the second training subassembly on the second casing to and above-mentioned double screen aperture adjustment mechanism.
As another embodiment of this application, the one end diapire that the articulated shaft was kept away from to first casing is equipped with first gyro wheel, and the one end diapire that the articulated shaft was kept away from to the second casing is equipped with the second gyro wheel.
The utility model provides an eyesight training appearance has adopted above-mentioned double screen aperture adjustment mechanism, has the same beneficial effect with above-mentioned double screen aperture adjustment mechanism, no longer gives unnecessary details here.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic perspective view of a double-screen opening degree adjusting mechanism provided in an embodiment of the present invention;
FIG. 2 is a view taken along the line A in FIG. 1;
fig. 3 is a schematic view of a three-dimensional structure of the vision training instrument provided by the embodiment of the present invention.
In the figure: 1. a base; 10. a fixed shaft; 11. a connecting plate; 12. a card slot; 13. a non-slip mat; 2. a central gear set; 21. a first sun gear; 22. a second sun gear; 3. a first fixed gear; 4. a second fixed gear; 5. a transition gear set; 51. a first transition gear; 52. a second transition gear; 521. first-stage gear teeth; 522. second step gear teeth; 6. a first housing; 60. a first roller; 7. a second housing; 70. a second roller; 8. and (4) hinging the shaft.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1 to fig. 3, a dual-panel opening adjusting mechanism according to the present invention will be described. The double-screen opening degree adjusting mechanism comprises a base 1, a central gear set 2, a first fixed gear 3, a second fixed gear 4 and a transition gear set 5; the base 1 is used for fixedly supporting the vision training instrument on a training table, and is provided with a fixed shaft 10 extending along a hinged shaft 8 of two shells of the vision training instrument, the fixed shaft 10 is rotatably connected with a first shell 6, and the top end of the fixed shaft penetrates into the first shell 6 and is provided with a connecting plate 11; the central gear set 2 is arranged in the first shell 6 and is rotatably connected to the fixed shaft 10; the first fixed gear 3 is fixedly connected in the first shell 6 and is connected with the central gear set 2; the second fixed gear 4 is fixedly connected in a second shell 7 of the vision training instrument and is connected with the central gear set 2; the transition gear set 5 is arranged on the connecting plate 11 and is connected with the central gear set 2; the central gear set 2 and the transition gear set 5 are used for cooperatively transmitting torque between the first fixed gear 3 and the second fixed gear 4, so that the first fixed gear 3 and the second fixed gear 4 simultaneously rotate reversely around the central gear set 2.
Firstly, it should be noted that two shells of the vision training instrument are respectively embedded with a screen, and the opening (included angle) of the two screens can be adjusted by adjusting the included angle of the first shell 6 and the second shell 7; base 1 can be with eyesight training appearance fixed stay at the training desktop, can adopt between base 1 and the training desktop gluing, arbitrary mode such as fastener connection is fixed, because fixed axle 10 extends along the axial of the articulated shaft 8 of two casings, it should be understood here that fixed axle 10 is coaxial with articulated shaft 8, consequently, when the contained angle of first casing 6 and second casing 7 was adjusted, first casing 6 and second casing 7 all carried out the pivoted along fixed axle 10 and articulated shaft 8.
The utility model provides a two screen aperture adjustment mechanism's working method does: when the opening degrees of the two screens need to be adjusted, the operation can be performed by swinging any one of the shells, and here, the first shell 6 is taken as an example for explaining schematically, when the opening degrees of the two screens need to be adjusted to be larger, by swinging the side of the first shell 6 far away from the hinge shaft 8 of the first shell in the direction far away from the trainer, because the first fixed gear 3 is fixedly connected to the first shell 6, the first fixed gear 3 can rotate around the central gear set 2 and drive the central gear set 2 to rotate on the fixed shaft 10, and finally the torque is transmitted to the second fixed gear 4 through the central gear set 2 by utilizing the torque transmission action of the central gear set 2 and the transition gear set 5, so that the second fixed gear 4 rotates around the central gear set 2 to drive the second shell 7 fixed with the second fixed gear 4 to swing, it should be understood that, besides the transition gear set 5 performs torque transmission, the more important function is to change the torque direction, so that the rotation directions of the second fixed gear 4 and the first fixed gear 3 around the central gear set 2 are opposite, the second shell 7 and the first shell 6 are synchronously swung and opened, and similarly, when the opening degrees of the two screens are required to be adjusted, the side, far away from the hinge shaft 8, of the first shell 6 is swung towards the direction close to the trainer; it should be further understood that if the second casing 7 is operated to perform the opening degree adjustment of the two screens, the same principle as that of operating the first casing 6 is applied, and therefore, the simultaneous opening or closing of the first casing 6 and the second casing 7 can also be achieved.
Compared with the prior art, the double-screen opening degree adjusting mechanism provided by the utility model can fixedly support the vision training instrument on the training desk through the base 1, because the fixed shaft 10 extends along the axial direction of the articulated shaft 8 of the first shell 6 and the second shell 7, namely the fixed shaft 10 is coaxial with the articulated shaft 8, both the first shell 6 and the second shell 7 can swing by taking the fixed shaft 10 as the center, when two screens arranged on the two shells need to be opened or closed, only the first shell 6 (or the second shell 7) needs to be moved backwards or forwards, so that the first fixed gear 3 (or the second fixed gear 4) rotates around the central gear set 2, and the second fixed gear 4 (or the first fixed gear 3) is driven to reversely rotate around the central gear set 2 through the torque transmission effect of the central gear set 2 and the transition gear set 5, thereby the second shell 7 (or the first shell 6) can be driven to be opened or closed, and can make first casing 6 and second casing 7 wobbling angle unanimous at the action in-process, need not whole visual training appearance that moves again, the training person also need not to adjust the training posture, can keep the contained angle uniformity between sight and two screens, and the adjustment process is simple, convenient operation.
As a specific embodiment of the dual-screen opening degree adjusting mechanism provided by the present invention, please refer to fig. 1 to 2, the central gear set 2 includes a first central gear 21 and a second central gear 22; wherein, the first central gear 21 is rotationally sleeved on the fixed shaft 10, meshed with the first fixed gear 3 and connected with the transition gear set 5; the second sun gear 22 is rotatably sleeved on the fixed shaft 10 and spaced from the first sun gear 21 up and down, and the second sun gear 22 is engaged with the second fixed gear 4 and connected with the transition gear set 5. The first central gear 21 and the second central gear 22 are connected to the fixed shaft 10 in a vertically spaced rotation mode, when the first shell 6 is swung, the first fixed gear 3 rotates around the first central gear 21 and drives the first central gear 21 to rotate, then the first central gear 21 drives the transition gear set 5 to rotate, the transition gear set 5 drives the second central gear 22 to rotate reversely relative to the first central gear 21, finally, torque is transmitted to the second fixed gear 4, the second fixed gear 4 is driven to rotate around the second central gear 22, synchronous swinging of the second shell 7 and the first shell 6 is achieved, the structure is compact, and transmission is stable.
In the present embodiment, referring to fig. 1 to 2, the transition gear set 5 includes a first transition gear 51 and a second transition gear 52; wherein, the first transition gear 51 is rotatably connected to the connecting plate 11 and meshed with the first sun gear 21; the second transition gear 52 is rotatably connected to the connecting plate 11, and is engaged with the first transition gear 51 and also engaged with the second sun gear 22. The first fixed gear 3 drives the first central gear 21 to rotate, the first central gear 21 drives the first transition gear 51 to rotate, so as to drive the second transition gear 52 to rotate, then the second transition gear 52 transmits torque to the second central gear 22, the torque sequentially generates three diversion processes on the first transition gear 51, the second transition gear 52 and the second central gear 22, so as to realize the reverse rotation of the second central gear 22 and the first central gear 21, and further drive the first fixed gear 3 and the second fixed gear 4 to reversely rotate by taking the fixed shaft 10 as the center, so as to realize the synchronous opening or closing action of the first shell 6 and the second shell 7, the transmission structure is stable and reliable, and the action consistency of the first shell 6 and the second shell 7 is good.
Specifically, referring to fig. 2, the second transition gear 52 is a stepped gear, wherein the first step gear 521 of the stepped gear is engaged with the first transition gear 51, and the second step gear 522 of the stepped gear is engaged with the second sun gear 22. Because the first central gear 21 and the second central gear 22 need to be coaxially sleeved on the fixed shaft 10 at an upper-lower interval, the first-stage gear teeth 521 can be meshed with the first transition gear 51 (flush with the first central gear 21) and the second-stage gear teeth 522 can be meshed with the second central gear 22 by adopting a step gear, so that torque transmission is realized, the structure is compact, and the transmission is stable.
As a specific implementation manner of the embodiment of the present invention, the first fixed gear 3 is used to be integrally formed with the first housing 6; the second fixed gear 4 is for integral molding with the second housing 7. It should be noted that the first housing 6 and the second housing 7 are generally formed by injection molding of a plastic material, and the first fixed gear 3 and the first housing 6 are integrally formed by injection molding, and the second housing 7 and the second fixed gear 4 are integrally formed by injection molding, so that the fixing reliability between the first fixed gear 3 and the first housing 6 and the fixing reliability between the second fixed gear 4 and the second housing 7 are ensured, and the processing technology is simple and the processing cost is low.
As a specific implementation manner of the embodiment of the present invention, please refer to fig. 3, a non-slip mat 13 is disposed on the bottom surface of the base 1. Because base 1 needs and training table fixed connection, consequently set up slipmat 13 in the bottom surface of base 1 to can improve the contact frictional force between base 1 and the training table, ensure that base 1 supports stably.
As a specific implementation manner of the embodiment of the present invention, please refer to fig. 2 and fig. 3, a clamping groove 12 is disposed on the base 1, and the clamping groove 12 is used for clamping and positioning a positioning table on a training table. Carry out the joint location through draw-in groove 12 and training desktop location platform to ensure that base 1 is reliable to the fixed stay position of visual training appearance, avoid base 1 dislocation and lead to visual training appearance unstability, thereby avoid influencing visual training.
The utility model also provides an eyesight training instrument. Referring to fig. 1 to 3, the vision training instrument includes a first casing 6 and a second casing 7 hinged to each other, a first training component disposed on the first casing 6, a second training component disposed on the second casing 7, and the above-mentioned double-screen opening degree adjusting mechanism.
The vision training instrument provided by the utility model adopts the double-screen opening degree adjusting mechanism, the vision training instrument can be fixedly supported on the training desk through the base 1, because the fixed shaft 10 extends along the axial direction of the articulated shaft 8 of the first shell 6 and the second shell 7, namely the fixed shaft 10 is coaxial with the articulated shaft 8, both the first shell 6 and the second shell 7 can swing by taking the fixed shaft 10 as the center, when two screens arranged on the two shells need to be opened or closed, only the first shell 6 (or the second shell 7) needs to be moved backwards or forwards, the first fixed gear 3 (or the second fixed gear 4) rotates around the central gear set 2, the second fixed gear 4 (or the first fixed gear 3) is driven to reversely rotate around the central gear set 2 through the torque transmission effect of the central gear set 2 and the transition gear set 5, thereby the second shell 7 (or the first shell 6) can be driven to synchronously opened or closed, and can make first casing 6 and second casing 7 wobbling angle unanimous at the action in-process, need not whole visual training appearance that moves again, the training person also need not to adjust the training posture, can keep the contained angle uniformity between sight and two screens, and the adjustment process is simple, convenient operation.
As a specific implementation manner of the vision training instrument provided by the present invention, please refer to fig. 3, the end bottom wall of the first casing 6 away from the hinge shaft 8 is provided with a first roller 60, and the end bottom wall of the second casing 7 away from the hinge shaft 8 is provided with a second roller 70. Through first gyro wheel 60, second gyro wheel 70 respectively with training table slide conflict, support first casing 6, second casing 7 keep away from its articulated shaft 8 one side to improve the support stability of visual training appearance, simultaneously, when the aperture of two screens of adjustment, first gyro wheel 60 and second gyro wheel 70 can roll on training table respectively, thereby improve the motion stationarity of first casing 6 and second casing 7 at the synchronous swing in-process.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (9)
1. Two screen opening adjustment mechanism, its characterized in that includes:
the base is used for fixedly supporting the vision training instrument on the training table, and is provided with a fixed shaft extending along a hinged shaft of two shells of the vision training instrument, the fixed shaft is rotatably connected with the first shell, and the top end of the fixed shaft penetrates into the first shell and is provided with a connecting plate;
the central gear set is arranged in the first shell and is rotationally connected to the fixed shaft;
the first fixed gear is fixedly connected in the first shell and is connected with the central gear set;
the second fixed gear is fixedly connected in a second shell of the vision training instrument and is connected with the central gear set;
the transition gear set is arranged on the connecting plate and is connected with the central gear set;
the central gear set and the transition gear set are used for cooperatively transmitting torque between the first fixed gear and the second fixed gear, so that the first fixed gear and the second fixed gear simultaneously rotate around the central gear set in opposite directions.
2. The dual panel opening degree adjustment mechanism according to claim 1, wherein the center gear group includes:
the first central gear is rotatably sleeved on the fixed shaft, is meshed with the first fixed gear and is connected with the transition gear set;
the second central gear is rotatably sleeved on the fixed shaft and is arranged at an interval from top to bottom with the first central gear, and the second central gear is meshed with the second fixed gear and is connected with the transition gear set.
3. The dual screen opening degree adjustment mechanism of claim 2, wherein the transition gear set comprises:
the first transition gear is rotationally connected to the connecting plate and meshed with the first central gear;
and the second transition gear is rotationally connected to the connecting plate, is meshed with the first transition gear and is also meshed with the second central gear.
4. The dual screen opening degree adjustment mechanism of claim 3, wherein the second transition gear is a step gear, wherein first step gear teeth of the step gear are engaged with the first transition gear, and second step gear teeth of the step gear are engaged with the second sun gear.
5. The double-screen opening degree adjusting mechanism according to claim 1, wherein the first fixed gear is formed integrally with the first housing; the second fixed gear is used for being integrally formed with the second shell.
6. The dual-screen opening degree adjusting mechanism according to claim 1, wherein a non-slip pad is provided on a bottom surface of the base.
7. The double-screen opening degree adjusting mechanism as claimed in claim 1, wherein a clamping groove is arranged on the base and used for being clamped on a positioning table on the training table.
8. A vision training instrument, comprising a first casing and a second casing hinged to each other, a first training component arranged on the first casing, a second training component arranged on the second casing, and a double-screen opening degree adjusting mechanism according to any one of claims 1 to 7.
9. The vision training apparatus of claim 8 wherein the first housing has a first roller on a bottom wall thereof remote from the hinge axis, and the second housing has a second roller on a bottom wall thereof remote from the hinge axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022808567.5U CN214382487U (en) | 2020-11-27 | 2020-11-27 | Double-screen opening adjusting mechanism and vision training instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022808567.5U CN214382487U (en) | 2020-11-27 | 2020-11-27 | Double-screen opening adjusting mechanism and vision training instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214382487U true CN214382487U (en) | 2021-10-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022808567.5U Active CN214382487U (en) | 2020-11-27 | 2020-11-27 | Double-screen opening adjusting mechanism and vision training instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214382487U (en) |
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2020
- 2020-11-27 CN CN202022808567.5U patent/CN214382487U/en active Active
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