CN217013992U - A runing rest for examining objective formula optometry appearance - Google Patents

Abstract

The utility model discloses a rotary bracket for detecting an objective optometry instrument, which comprises a base, wherein a second screw and a second guide rod are arranged on the base, an adjusting block is sleeved on the second screw and the second guide rod, a support rod is arranged on the adjusting block, the support rod is connected with an adjusting rod through a first screw, a moving plate is arranged on the adjusting rod, first guide rods are arranged on two sides of the adjusting rod, the moving plate is sleeved on the first guide rod, a bracket is arranged at the upper end of the adjusting rod, a first rotating shaft and a second rotating shaft are arranged on the bracket, a rotator is arranged on the first rotating shaft, a first gear is arranged on the rotator, a second gear is arranged on the second rotating shaft, an iron block is arranged at one end of the rotator in a matrix manner, an electric telescopic rod is arranged on the bracket, an electromagnet is arranged at the end part of the electric telescopic rod, a positioning plate is also arranged on the bracket, a laser emitter is arranged on the positioning plate, and laser receivers are also arranged on the rotator in a matrix manner in one-to-one correspondence with the iron blocks, the rotor is also provided with an installation groove. The device has the advantages of accurately and reliably adjusting and positioning the simulation eye.

Description

A runing rest for examining determine objective formula optometry appearance

Technical Field

The utility model relates to the technical field of machinery manufacturing and refractometer calibrating devices, in particular to a rotating bracket for calibrating an objective refractometer.

Background

At present, the optometry instrument is widely applied to hospitals and glasses shops, is common ophthalmological equipment and is indispensable to people in the process of glasses fittingThe optometry instrument of (1). In order to ensure that an optometry instrument can provide an accurate measurement result, the optometry instrument needs to be periodically calibrated. The optometry instrument belongs to a compulsory verification measuring instrument, and the verification period is 1 year. The calibration of the refractometer is typically done in the laboratory. The refractometer is divided into a subjective refractometer and an objective refractometer, wherein the objective refractometer is a common refractometer at present, and the subjective refractometer is rare. The spherical power of an objective refractometer (hereinafter referred to as refractometer) was measured using an objective standard simulated eye (hereinafter referred to as simulated eye) according to the regulation of JJG 892-2011. During inspection, the vertex power of the standard simulated eye is measured by using the refractometer, and the accuracy of the refractometer can be determined by comparing the measured value of the refractometer with the standard value of the simulated eye. The simulated eye has vertex powers of 0, +/-2.5, +/-5, +/-10, +/-20 m^-1The 11 simulated eyes and the objective simulated eye bracket need to use a tested optometry instrument in the verification process, and 11 simulated eyes with different vertex powers are respectively measured.

An objective simulated eye bracket in the prior art is shown in fig. 1, a tested simulated eye is placed in a clamping groove of the bracket during detection, then the bracket is fixed on a forehead support of an optometry instrument, and the simulated eye on the bracket is measured by using the optometry instrument. The support can be placed with 3 simulation eyes at most once, and after measurement is completed to a group of simulation eyes, the simulation eyes on the support need to be taken down and replaced by another 3 simulation eyes for measurement until the simulation eyes are all completed with measurement.

The prior art stents have the following disadvantages: 1. the simulation eye on the bracket needs to be frequently replaced in the verification process, a verification worker is positioned on the screen side of the optometry instrument during verification and sits on the screen side of the optometry instrument for measurement, and the bracket is positioned on one side of the back side of the screen of the optometry instrument, so that the verification worker needs to get up to wind the back side of the optometry instrument to complete the operation of replacing the simulation eye during replacement of the simulation eye, and the efficiency of verification is greatly influenced by frequent standing up to perform replacement operation; 2. the simulation eye is a glass lens and is very easy to damage, and the standard device is very easy to damage due to careless falling off in the frequent replacement process; 3. the existing bracket can not adjust the height and the transverse position and is difficult to realize high-precision matching and coaxial line with an optometry instrument, so the utility model aims to provide the bracket which does not need to replace a simulation eye, and a verification person can replace the simulation eye to be detected by rotating the bracket.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide a rotary support for detecting an objective optometry instrument, and aims to solve the problems that in the prior art, a simulation eye on the support needs to be frequently replaced in a detection process, and the positioning accuracy is poor.

In order to achieve the above object, according to one aspect of the present invention, there is provided a rotating bracket for calibrating an objective optometry instrument, comprising a base, wherein a second screw and a second guide rod are arranged on the base, an adjusting block is sleeved on the second screw and the second guide rod, a support rod is arranged on the adjusting block, the support rod is connected with an adjusting rod through the first screw, a moving plate is arranged on the adjusting rod, first guide rods are arranged on two sides of the adjusting rod, the moving plate is sleeved on the first guide rod, a bracket is arranged at the upper end of the adjusting rod, a first rotating shaft and a second rotating shaft are arranged on the bracket, a rotating body is arranged on the first rotating shaft, a first gear is arranged on the rotating body, a second gear is arranged on the second rotating shaft, the first gear is engaged with the second gear, an iron block is arranged at one end of the rotating body in a matrix form, and an electric telescopic rod is arranged on the bracket, the end part of the electric telescopic rod is provided with an electromagnet, the support is further provided with a positioning plate, the positioning plate is provided with a laser emitter, the rotor is further provided with a laser receiver in a matrix and iron block one-to-one correspondence mode, and the rotor is further provided with a mounting groove.

Preferably, the second screw rod is connected with a second motor, the second rotating shaft is connected with a first motor, and the first screw rod is provided with adjusting holes which are arranged in a matrix.

Preferably, still include the controller, the controller includes central processing unit, first motor control module, second motor control module, laser emitter control module, laser receiver control module, electronic expansion link control module, electromagnet control module link to each other with central processing unit respectively.

Preferably, the first motor control module is connected with the first motor, the second motor control module is connected with the second motor, the laser transmitter control module is connected with the laser transmitter, the laser receiver control module is connected with the laser receiver, the electric telescopic rod control module is connected with the electric telescopic rod, and the electromagnet control module is connected with the electromagnet.

Preferably, first pivot level sets up, and the rotor cover is established in first pivot, the rotor includes six sides at least, is equipped with two at least mounting grooves on every side, be equipped with the simulation eye in the mounting groove.

Preferably, the first rotating shaft and the second rotating shaft are matched with the support through rotating bearings, and the second screw is matched with the base through rotating bearings.

Preferably, the first screw is provided with external threads, the adjusting rod is provided with internal threads, and the first screw is matched with the adjusting rod through the external threads and the internal threads.

Preferably, the lower end of the first screw is rotatably connected with the support rod.

Preferably, the upper end of the first guide rod is provided with a limiting frame.

Preferably, the second gear diameter is smaller than the first gear diameter.

By applying the technical scheme of the utility model, the second motor drives the second screw rod to rotate, the second screw rod drives the adjusting block to move along the second guide rod, thereby realizing the adjustment of the transverse position of the simulation eye, realizing the adjustment of the lifting rod by inserting the inserted link into the adjusting hole and rotating the first screw rod, thereby realizing the adjustment of the longitudinal position of the simulated eye, driving the first rotating shaft to rotate through the first motor, driving the second gear with smaller diameter to rotate through the first rotating shaft, the second gear is meshed with the first gear, the second gear drives the first gear to rotate, wherein the diameter of the second gear is far smaller than that of the first gear, so that better adjusting precision can be ensured, the controllability is good, through setting up electric telescopic handle, laser emitter, laser receiver and electro-magnet and iron plate, realize the reliable location of rotor, and then guarantee the reliable change of simulation eye, guarantee the reliability of position. The device has the technical effects of accurately and reliably adjusting and positioning the simulation eye, improving the replacement efficiency and avoiding disassembling the simulation eye.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the utility model, and are incorporated in and constitute a part of this specification, illustrate embodiment(s) of the utility model and together with the description serve to explain the utility model and not to limit the utility model. In the drawings:

FIG. 1 shows a schematic of a prior art configuration of a rotating mount for use in authenticating an objective refractometer according to the present invention;

FIG. 2 is a schematic diagram of a rotating mount for use in authenticating objective refractometers according to the present invention;

FIG. 3 shows a side structural view of the rotating mount of FIG. 1 used to authenticate the objective refractometer;

FIG. 4 shows a front view of the rotating mount of FIG. 1 used to authenticate the objective refractometer;

FIG. 5 shows a left side view of the rotating mount of FIG. 1 used to calibrate the objective refractometer;

FIG. 6 shows a right side view of the rotating mount of FIG. 1 used to calibrate the objective refractometer;

FIG. 7 shows a top view of the rotating mount of FIG. 1 used to authenticate the objective refractometer.

Wherein the figures include the following reference numerals:

a first gear 1; a simulated eye 2; a positioning plate 3; an electric telescopic rod 4; a bracket 5; an adjusting rod 6; a limiting frame 7; a moving plate 8; a first guide bar 9; a support bar 10; an adjusting block 11; a second guide bar 12; a second screw 13; a second electric machine 14; an adjustment hole 15; a second rotating shaft 16; a second gear 17; a first motor 18; a mounting groove 19; a first screw 20; a laser transmitter 21; an iron block 22; a laser receiver 23; an electromagnet 24; a first rotating shaft 25; a rotor 26 is rotated.

Detailed Description

It should be noted that, in the present application, the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

As shown in fig. 1 to 7, an embodiment of the present invention provides a rotating bracket 5 for calibrating an objective optometry instrument, including a base, a second screw 13 and a second guide rod 12 are disposed on the base, an adjusting block 11 is sleeved on the second screw 13 and the second guide rod 12, a support rod 10 is disposed on the adjusting block 11, the support rod 10 is connected to an adjusting rod 6 through a first screw 20, a moving plate 8 is disposed on the adjusting rod 6, first guide rods 9 are disposed on both sides of the adjusting rod 6, the moving plate 8 is sleeved on the first guide rod 9, a bracket 5 is disposed on an upper end of the adjusting rod 6, a first rotating shaft 25 and a second rotating shaft 16 are disposed on the bracket 5, a rotor 26 is disposed on the first rotating shaft 25, a first gear 1 is disposed on the rotor 26, a second gear 17 is disposed on the second rotating shaft 16, the first gear 1 is engaged with the second gear 17, an iron block 22 is disposed at one end of the rotor 26 in a matrix form, an electric telescopic rod 4 is disposed on the bracket 5, the end part of the electric telescopic rod 4 is provided with an electromagnet 24, the support 5 is further provided with a positioning plate 3, the positioning plate 3 is provided with a laser emitter, the rotor 26 is further provided with laser receivers 23 corresponding to the iron blocks 22 in a matrix one-to-one manner, and the rotor 26 is further provided with mounting grooves 19.

In the base of the embodiment, a second screw 13 and a second guide rod 12 are arranged on the base. The second screw 13 is connected with the second motor 14, the second rotating shaft 16 is connected with the first motor 18, and the first screw 20 is provided with adjusting holes 15 arranged in a matrix. The base plays the effect of support, wherein second motor 14, second screw 13, second guide bar 12, regulating block 11 constitutes the lateral shifting structure, rotate clockwise and anticlockwise through controller control second motor 14, when second motor 14 rotates clockwise, drive second screw 13 and rotate clockwise, through screw-thread fit between second screw 13 and the regulating block 11, and then transmission motion, make the regulation remove towards keeping away from second motor 14 direction along the guide bar, when second motor 14 rotates anticlockwise, drive regulating block 11 and remove towards being close to second motor 14 direction, and then realize the accurate regulation of rotor 26 lateral position, realize the accurate regulation of simulation eye 2 lateral position.

In this embodiment, the second screw 13 and the second guiding rod 12 are sleeved with the adjusting block 11. The purpose of setting up of regulating block 11 is in order to realize driving rotor 26 along axis lateral shifting, and then drive simulation eye 2 lateral shifting, realizes the horizontal accurate regulation of simulation eye 2, and then realizes and refractometer coaxial line.

In this embodiment, the adjusting block 11 is provided with a support rod 10, and the support rod 10 is connected to the adjusting rod 6 through a first screw 20. The first screw 20 is provided with external threads, the adjusting rod 6 is provided with internal threads, and the first screw 20 is matched with the adjusting rod 6 through the external threads and the internal threads. The lower end of the first screw 20 is rotatably connected with the support rod 10. The supporting rod 10 is provided with a supporting body 26 and a simulation eye 2, wherein the supporting rod 10 is rotatably connected with the first screw rod 20 to realize the relative rotation between the supporting rod 10 and the first screw rod 20, so as to realize the lifting of the lifting rod on the first screw rod 20 and further realize the longitudinal adjustment of the rotating body 26 and the simulation eye 2.

In this embodiment, the adjusting rod 6 is provided with a moving plate 8, the two sides of the adjusting rod 6 are provided with first guide rods 9, and the moving plate 8 is sleeved on the first guide rods 9. The upper end of the first guide rod 9 is provided with a limiting frame 7. The moving plate 8 sets up the purpose and drives the lifter and reciprocate, and the setting purpose of first guide bar 9 guarantees that the moving plate 8 reciprocates along first guide bar 9 direction, guarantees the accuracy and the reliability of vertical direction regulation.

In this embodiment, a bracket 5 is disposed at an upper end of the adjusting rod 6, a first rotating shaft 25 and a second rotating shaft 16 are disposed on the bracket 5, and a rotating body 26 is disposed on the first rotating shaft 25. First pivot 25 level sets up, and rotor 26 cover is established on first pivot 25, and rotor 26 includes six sides at least, is equipped with two at least mounting grooves 19 on every side, is equipped with simulation eye 2 in the mounting groove 19. The first rotating shaft 25 and the second rotating shaft 16 are matched with the bracket 5 through rotating bearings, and the second screw 13 is matched with the base through rotating bearings. Support 5 sets up the purpose and is in order to support rotor 26, first pivot 25 set up the purpose and support first gear 1, and drive first gear 1 and rotate, second pivot 16 sets up the purpose and supports rotor 26, and drive rotor 26 and rotate, rotor 26 sets up the purpose and is convenient for simulate eye 2's quick replacement, six sides, every side sets up two simulation eyes 2, realize twelve simulation eye 2 settings, and then can realize in succession, quick simulation eye 2 changes, improve optometry appearance optometry efficiency.

In this embodiment, be equipped with first gear 1 on the rotor 26, be equipped with second gear 17 on the second pivot 16, first gear 1 and the meshing of second gear 17, through setting up first gear 1 and second gear 17, wherein the diameter of second gear 17 is less than first gear 1 diameter, make first gear 1 diameter far less than second gear 17 diameter, can obtain great moment, and then guarantee that rotor 26 rotates the controllability better, slew velocity is more controllable, the rotation precision is higher, first gear 1, when the motor shaft rotates the round, rotor 26 rotates less angle, guarantee to rotate and adjust high accuracy nature.

In this embodiment, rotor 26 one end is the matrix and is equipped with iron plate 22, be equipped with electric telescopic handle 4 on the support 5, 4 tip of electric telescopic handle are equipped with electro-magnet 24, still be equipped with locating plate 3 on the support 5, iron plate 22 sets up the purpose in order to cooperate with electro-magnet 24, realize the location, it is spacing, through the flexible of controller control electric telescopic handle 4, and then drive the contact of electro-magnet 24 and keep away from iron plate 22, cooperate electro-magnet 24 electrified and lose the electricity simultaneously, realize attracting and releasing with iron plate 22, and then realize spacing and release. And then guarantee the accurate reliable orientation optometry appearance of simulation eye 2, improve the position accuracy nature and the reliability that simulation eye 2 changed.

In this embodiment, the positioning plate 3 is provided with a laser emitter, the rotor 26 is further provided with laser receivers 23 corresponding to the iron blocks 22 in a matrix one-to-one manner, and the rotor 26 is further provided with mounting grooves 19. Laser emitter's setting realization and the cooperation of laser receiver 23, when changeing to corresponding position, the receiver gives the controller with laser signal transmission, 4 extensions of controller control electric telescopic handle, it is electrified to make electro-magnet 24 simultaneously, and then realize spacing, the location after the change of simulation eye 2, when needs change once more, 24 electricity consumptions of controller control electro-magnet, 4 shrink of simultaneous control electric telescopic handle and then realize the release to rotor 26, be convenient for carry out the change of next set of simulation eye 2.

In this embodiment, the electric telescopic rod further comprises a controller, the controller comprises a central processing unit, a first motor 18 control module, a second motor 14 control module, a laser emitter 21 control module, a laser receiver 23 control module, an electric telescopic rod 4 control module and an electromagnet 24 control module, and the first motor 18 control module, the second motor 14 control module, the laser emitter 21 control module, the laser receiver 23 control module, the electric telescopic rod 4 control module and the electromagnet 24 control module are respectively connected with the central processing unit. The control module of the first motor 18 is connected with the first motor 18, the control module of the second motor 14 is connected with the second motor 14, the control module of the laser emitter 21 is connected with the laser emitter 21, the control module of the laser receiver 23 is connected with the laser receiver 23, the control module of the electric telescopic rod 4 is connected with the electric telescopic rod 4, and the control module of the electromagnet 24 is connected with the electromagnet 24. The central processing unit controls the work of each module, the first motor 18 control module controls the rotation of the first motor 18, the second motor 14 control module controls the rotation of the second motor 14, the laser emitter 21 control module controls the emission of the laser emitter 21, the laser receiver 23 control module controls the laser receiving of the laser receiver 23, and transmits signals to the controller, the electromagnet 24 control module controls the electrification and the power loss of the electromagnet 24, and the electric telescopic rod 4 control module controls the extension and the contraction of the electric telescopic rod 4.

From the above description, it can be seen that the working principle of the present invention and the technical effects achieved by the above embodiments: the second motor 14 drives the second screw rod 13 to rotate, the second screw rod 13 drives the adjusting block 11 to move along the second guide rod 12, so as to realize the adjustment of the horizontal position of the simulation eye 2, the inserted rod is inserted into the adjusting hole 15 to rotate the first screw rod 20, so as to realize the lifting adjustment of the lifting rod, so as to realize the adjustment of the longitudinal position of the simulation eye 2, the first motor 18 drives the first rotating shaft 25 to rotate, the first rotating shaft 25 drives the second gear 17 with smaller diameter to rotate, the second gear 17 is meshed with the first gear 1, the second gear 17 drives the first gear 1 to rotate, wherein the diameter of the second gear 17 is far smaller than that of the first gear 1, so that the better adjusting precision and the controllability can be ensured, and the reliable positioning of the rotator 26 is realized by arranging the electric telescopic rod 4, the laser transmitter, the laser receiver 23, the electromagnet 24 and the iron block 22, so as to ensure the reliable replacement of the simulation eye 2, the reliability of the position is guaranteed. The rotary type rapid replacement of the simulation eye 2 is realized through the rotating body 26, and the technical effect of accurately and reliably adjusting and positioning the simulation eye 2 is achieved. The simulation eye 2 on the support 5 does not need to be frequently replaced in the verification process, a verification worker is positioned on the screen side of the optometry instrument during verification and sits on the optometry instrument for measurement, the support 5 is positioned on one side of the back of the screen of the optometry instrument, the controller can control automatic replacement, the verification worker can complete the operation of replacing the simulation eye without getting up to go round the back of the optometry instrument when replacing the simulation eye 2, and the verification efficiency is improved; the simulation eye 2 is a glass lens and is very easy to damage, so that the damage of the standard device caused by the fact that the simulation eye is very easy to drop carelessly in the frequent replacement process is avoided; can be adjusted in height and transverse position, and can be matched with an optometry instrument in high precision and coaxial.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made without departing from the spirit and principle of the present invention shall fall within the protection scope of the present invention.

Claims (10)

1. A rotating bracket for detecting an objective optometry instrument is characterized by comprising a base, wherein a second screw and a second guide rod are arranged on the base, adjusting blocks are sleeved on the second screw and the second guide rod, supporting rods are arranged on the adjusting blocks, the supporting rods are connected with adjusting rods through first screws, moving plates are arranged on the adjusting rods, first guide rods are arranged on two sides of each adjusting rod, the moving plates are sleeved on the first guide rods, a bracket is arranged at the upper ends of the adjusting rods, a first rotating shaft and a second rotating shaft are arranged on the bracket, a rotating body is arranged on the first rotating shaft, a first gear is arranged on the rotating body, a second gear is arranged on the second rotating shaft, the first gear is meshed with the second gear, an iron block is arranged at one end of the rotating body in a matrix manner, an electric telescopic rod is arranged on the bracket, and an electromagnet is arranged at the end part of the electric telescopic rod, still be equipped with the locating plate on the support, be equipped with laser emitter on the locating plate, the rotor still is the matrix and is equipped with laser receiver with the iron plate one-to-one, still be equipped with the mounting groove on the rotor.

2. The rotating mount for calibrating an objective refractometer according to claim 1, wherein said second screw is connected to a second motor, said second rotating shaft is connected to a first motor, and said first screw is provided with adjustment holes arranged in a matrix.

3. The rotating mount for calibrating an objective refractometer according to claim 1, further comprising a controller, wherein the controller comprises a central processing unit, a first motor control module, a second motor control module, a laser transmitter control module, a laser receiver control module, an electric telescopic rod control module and an electromagnet control module, and the first motor control module, the second motor control module, the laser transmitter control module, the laser receiver control module, the electric telescopic rod control module and the electromagnet control module are respectively connected to the central processing unit.

4. The rotating mount for calibrating an objective refractometer according to claim 3, wherein said first motor control module is connected to a first motor, said second motor control module is connected to a second motor, said laser transmitter control module is connected to a laser transmitter, said laser receiver control module is connected to a laser receiver, said electric telescopic rod control module is connected to an electric telescopic rod, and said electromagnet control module is connected to an electromagnet.

5. The rotating bracket for detecting an objective refractometer according to claim 1, wherein said first rotating shaft is horizontally disposed, said rotating body is sleeved on said first rotating shaft, said rotating body comprises at least six side surfaces, each side surface is provided with at least two mounting grooves, and said mounting grooves are provided with simulation eyes.

6. The rotating rack for calibrating an objective refractometer according to claim 1, wherein said first and second shafts are engaged with the rack by means of rotating bearings, and said second screw is engaged with the base by means of rotating bearings.

7. The rotating mount for calibrating an objective refractometer according to claim 1, wherein said first screw is externally threaded and said adjustment rod is internally threaded, said first screw and said adjustment rod being engaged by said external and internal threads.

8. The rotating mount for calibrating an objective refractometer according to claim 1, wherein the lower end of said first screw is rotatably connected to a support rod.

9. The rotating rack for verifying objective refractometer according to claim 1, wherein a limiting rack is provided at the upper end of the first guiding rod.

10. The rotating mount for authenticating an objective refractometer according to claim 1, wherein the second gear diameter is smaller than the first gear diameter.

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