CN201290665Y - Mobile liftable standard visual acuity chart - Google Patents

Abstract

The utility model relates to a movable standard test chart capable of being lifted. The test chart is characterized in that the test chart consists of a lifting test chart box, a sight target rotating mechanism, a lifting mechanism, a driving and reversing mechanism and a controller; a standard test chart is arranged on the front side of the lifting test chart box; the sight target rotating mechanism is arranged in the lifting test chart box; the lifting mechanism and the driving and reversing mechanism are arranged under the sight target rotating mechanism; the controller is connected with the lifting test chart box through a cable line; and a sight target main control circuit board and a relay circuit board are arranged in the controller. The utility model has movability, can conveniently detect the sight situations of a detector in different distance, also has the characteristic of multi-functions, i.e. is capable of carrying out regular far-distance sight examination, also short sight examination, and can record the detection time, and can reflect the sight situations of the detector from different views. By arranging the sight target on the sight target box, the sight situations of the detector can be really detected, and the detection accuracy is greatly enhanced.

Description

The liftable standard visual acuity chart of a kind of movable type

Technical field

This utility model belongs to a kind of vision checkout facility that is applicable to hospital and optician's shop, the liftable standard visual acuity chart of particularly a kind of movable type.

Background technology

At present, domestic hospital and optician's shop are to give a test of one's eyesight by visual acuity chart, traditional mode is that visual acuity chart is placed on the fixed position, according to measured and visual acuity chart distance detection eyesight status, the accuracy of this detection mode is relatively poor, because some because of remembeing the direction of sighting target, just can not reflect measured's true vision situation really.

Summary of the invention

This utility model has overcome the defective of above-mentioned existence, and purpose is for hospital and the true and reliable detection measured vision situation of optician's shop energy, provides a kind of movable type liftable standard visual acuity chart.

The portable liftable standard visual acuity chart content Description of this utility model:

The portable liftable standard visual acuity chart of this utility model, it is characterized in that: by: lifting visual acuity chart case, sighting target rotating mechanism, elevating mechanism, driving and reversing mechanism and controller are formed, the front of the lifting visual acuity chart case visual acuity chart that sets up standard, in lifting visual acuity chart case, the sighting target rotating mechanism is set, below the sighting target rotating mechanism elevating mechanism and driving and reversing mechanism, controller is connected with lifting visual acuity chart case by cable, and sighting target main control board and relay circuit plate are housed in controller; Connect and compose by sighting target rolling disc and motor in the sighting target rotating mechanism, elevating mechanism by: lifting motor connects and composes by screw mandrel, guide pillar and screw, be driving and reversing mechanism below the elevating mechanism, driving and reversing mechanism by: advance and retreat motor connect and compose by belt pulley, belt and wheel.

The portable liftable standard visual acuity chart of this utility model, has mobility, can detect the vision situation of measured when different distance easily, also have multi-functional characteristics, it can carry out conventional remote examination of visual acuity, can carry out examination of near vision again, can write down detection time simultaneously, can react detected person's vision situation from different perspectives, in addition by the rotation sighting target that is provided with on the sighting target case can more real detection measured the vision situation, improved the accuracy that detects greatly.

Description of drawings

Fig. 1 is portable liftable standard visual acuity chart structural representation

Fig. 2 is sighting target governor circuit figure

Fig. 3 is relay circuit figure

Among the figure: the 1st, lifting visual acuity chart case, the 2nd, display lamp, the 3rd, sighting target rolling disc, the 4th, motor, the 5th, lifting motor, the 6th, screw mandrel, the 7th, guide pillar, the 8th, screw, the 9th, advance and retreat motor, the 10th, belt pulley, the 11st, belt, the 12nd, wheel, the 13rd, standard visual acuity chart, the 14th, cable, the 15th, controller, the 16th, sighting target main control board, the 17th, relay circuit plate.

The specific embodiment

The portable liftable standard visual acuity chart of this utility model is achieved in that to do below in conjunction with accompanying drawing and specifies.See Fig. 1, portable liftable standard visual acuity chart by: lifting visual acuity chart case 1, sighting target rotating mechanism, elevating mechanism, driving and reversing mechanism and controller 15 are formed, the front of lifting visual acuity chart case 1 visual acuity chart 13 that sets up standard, in lifting visual acuity chart case 1, the sighting target rotating mechanism is set, below the sighting target rotating mechanism elevating mechanism and driving and reversing mechanism, controller 15 is connected with lifting visual acuity chart case 1 by cable 14, and sighting target main control board 16 and relay circuit plate 17 are housed in controller 15.

Connect and compose by sighting target rolling disc 3 and motor 4 in the sighting target rotating mechanism, control, motor 4 is rotated, drive sighting target rolling disc 3 and rotate by controller 15; Elevating mechanism by: lifting motor 5 connects and composes by screw mandrel 6, guide pillar 7 and screw 8, it below the elevating mechanism driving and reversing mechanism, driving and reversing mechanism by: advance and retreat motor 9 is by belt pulley 10, belt 11 and take turns 12 and connect and compose, control by controller 15, lifting motor 5 is rotated, drive screw mandrel 6 and screw 8, drive connected lifting visual acuity chart case 1 or liter or fall satisfied detection requirement by guide pillar 7.Control by controller 15, advance and retreat motor 9 is rotated, drive belt pulley 10 and belt 11 wheel 12 is rotated, drive lifting visual acuity chart case 1 and move forward and backward or advance or move back, satisfy and detect requirement.

Seeing Fig. 2, is the sighting target governor circuit figure in the sighting target main control board 16, among the figure: chip IC ₃3 feet connect power supply, chip IC ₃7 feet, 6 foot ground connection, chip IC ₃9 feet, 10 feet, 11 feet respectively with chip I N ₁21,22,23 feet link to each other chip IC ₃4 feet are sky feet, chip IC ₃2 feet and the LED that shows upper and lower, left and right _{9～ 12}The upper end link to each other chip IC ₃5 feet and charactron SMG ₅8 feet link to each other chip IC ₃1 foot and LED _1～8The upper end link to each other chip IC ₃12 feet and charactron SMG ₁8 feet link to each other chip IC ₃15 feet and charactron SMG ₂8 feet link to each other chip IC ₃14 feet and charactron SMG ₃8 feet link to each other chip IC ₃13 feet and charactron SMG ₄8 feet link to each other.

Chip I N ₂1 foot and resistance R ₅Left end link to each other chip I N ₂15 feet and resistance R ₄Left end link to each other resistance R ₄, R ₅Right-hand member link to each other with ground; Chip I N ₂8 feet link to each other with ground; Chip I N ₂14 feet and diode D ₈Negative terminal, diode D ₇Anode link to each other with motor 4 lines; Chip I N ₂13 feet and diode D ₆Negative terminal, diode D ₅Anode link to each other with motor 3 lines; Chip I N ₂3 feet and diode D ₄Negative terminal, diode D ₃Anode link to each other with motor 2 lines; Chip I N ₂2 feet and diode D ₂Negative terminal, diode D ₁Anode link to each other with motor 1 line; Chip I N ₂4 feet and diode D ₁, D ₃, D ₅, D ₇Negative terminal, with diode D ₉Negative terminal, with electrolysis condenser C ₅Anode and chip I N ₃1 foot link to each other; Chip I N ₂9 feet and electrolysis condenser C ₄Anode, electrolysis condenser C ₃Anode and chip I N ₃3 feet, with chip I N ₂6 feet, 11 feet, with chip I N ₁31 feet, 40 feet, with resistance R ₆1 foot, with resistance R ₂The upper end, with audion Q ₃Emitter stage links to each other; Chip I N ₂5 feet and chip I N ₁10 feet link to each other; Chip I N ₂7 feet and chip I N ₁11 feet link to each other; Chip I N ₂10 feet and chip I N ₁12 feet link to each other; Chip I N ₂12 feet and chip I N ₁13 feet link to each other; Chip I N ₃2 feet and electrolysis condenser C ₄, electrolysis condenser C ₅Negative terminal, with supply socket J ₅2 feet link to each other supply socket J with ground ₅1 foot and diode D ₉Anode link to each other; Electrolysis condenser C ₃Negative terminal and resistance R ₃Left end link to each other; Chip I N ₁14 feet are sky feet; Chip I N ₁15 feet and supply socket J ₆2 feet link to each other; Chip I N ₁16 feet and resistance R ₁Right-hand member link to each other resistance R ₁Left end and audion Q ₃Base stage links to each other, audion Q ₃Colelctor electrode link to each other 2 foot ground connection of buzzer with 1 foot of buzzer; Chip I N ₁17 feet and supply socket J ₃1 foot link to each other supply socket J ₃2 foot ground connection; Chip I N ₁18 feet and the lower end of crystal oscillator, capacitor C ₂Left end link to each other; Chip I N ₁19 feet and the upper end and the capacitor C of crystal oscillator ₁Left end link to each other; Chip I N ₁20 feet and capacitor C ₁, capacitor C ₂Right-hand member, with socket J ₁2 feet, 4 feet, 6 feet, 8 feet, 10 feet, 12 feet, 14 feet, 16 feet link to each other, with resistance R ₃The right-hand member ground connection that links to each other; Chip I N ₁The 24-30 foot be the sky foot; Chip I N ₁32 feet and charactron SM ₁-charactron SM ₅5 feet link to each other; Chip I N ₁35 feet and charactron SM ₁-charactron SM ₅1 foot links to each other; Chip I N ₁36 feet and charactron SM ₁-charactron SM ₅2 feet link to each other; Chip I N ₁37 feet and charactron SM ₁-charactron SM ₅4 feet link to each other; Chip I N ₁38 feet and LED ₂Negative terminal, with charactron SM ₁-charactron SM ₅6 feet link to each other; Chip I N ₁39 feet and LED ₁Negative terminal, with charactron SM ₁-charactron SM ₅7 feet link to each other; LED ₆Negative terminal and charactron SM ₁-charactron SM ₅9 feet link to each other; LED ₆Anode and LED ₁-LED ₈Anode link to each other, with chip IC ₃1 foot link to each other LED ₇Negative terminal and charactron SM ₁-charactron SM ₅10 feet link to each other; Socket J ₃1 foot, 2 feet link to each other with dry-reed tube switch; Socket J ₂1 foot link to each other with left end on the switch; Socket J ₂1 foot link to each other with left end on the switch; Socket J ₂3 feet link to each other with left end under the switch; Socket J ₂5 feet link to each other with the left end of switch; Socket J ₂7 feet link to each other with the right left end of switch; Socket J ₂9 feet link to each other with the left end of reset switch; Socket J ₂11 feet link to each other with the left end of permutator; Socket J ₂13 feet link to each other with the left end of time switch; Socket J ₂15 feet link to each other with the left end that time switch stops; Socket J ₂2 feet link to each other with right-hand member on the switch; Socket J ₂4 feet link to each other with right-hand member under the switch; Socket J ₂6 feet link to each other with the right-hand member on a switch left side; Socket J ₂8 feet link to each other with the right-hand member on the switch right side; Socket J ₂10 feet link to each other with the right-hand member of reset switch; Socket J ₂12 feet link to each other with the right-hand member of permutator; Socket J ₂14 feet link to each other with the right-hand member of time switch; Socket J ₂16 feet link to each other with the right-hand member that time switch stops.

Seeing Fig. 3, is the relay circuit figure in the relay circuit plate 17, among the figure: socket CZ ₂1 foot and relay J ₁The normal battle is connected; Socket CZ ₂2 feet and relay J ₂The normal battle is connected; Socket CZ ₂3 feet and relay J ₃The normal battle is connected; Socket CZ ₂4 feet and relay J ₄The normal battle is connected; Socket CZ ₂5 feet and relay J ₅The normal battle is connected; Socket CZ ₂6 feet and relay J ₆The normal battle is connected; Socket CZ ₂7 feet and relay J ₇The normal battle is connected; Socket CZ ₂8 feet and relay J ₈The normal battle is connected; Socket CZ ₂9 feet and relay J ₉The normal battle is connected;

Socket CZ ₁1 foot and relay J ₁The coil right-hand member is connected; Socket CZ ₁2 feet and relay J ₂The coil right-hand member is connected; Socket CZ ₁3 feet and relay J ₃The coil right-hand member is connected; Socket CZ ₁4 feet and relay J ₄The coil right-hand member is connected; Socket CZ ₁5 feet and relay J ₅The coil right-hand member is connected; Socket CZ ₁6 feet and relay J ₆The coil right-hand member is connected; Socket CZ ₁7 feet and relay J ₇The coil right-hand member is connected; Socket CZ ₁8 feet and relay J ₈The coil right-hand member is connected; Socket CZ ₁9 feet and relay J ₉The coil right-hand member is connected;

Socket JX ₁1 foot and diode D ₁Anode links to each other, diode D ₁Negative terminal and chip GN _D1 foot is connected; Socket JX ₁2 feet and chip GN _DGround connection is with capacitor C ₁Negative terminal links to each other; Chip GN _D3 feet and capacitor C ₁Anode links to each other, resistance R ₁Lower end and relay J ₁-relay J ₉The coil left end is connected; Resistance R ₁Upper end and relay J ₁-relay J ₉Normally closed point be connected.

Be provided with the rotation sighting target on the portable liftable standard visual acuity chart of this utility model, can any and erratic conversion sighting target, overcome the relatively poor defective of traditional visual acuity chart accuracy in detection, on master control borad, be provided with time, direction, meter speed, advance, retreat, zero clearing, Switching Power Supply, by timing, time and speed parameter, the response speed of understanding measured sighting target.Can also obtain the vision data of all many-sides from different angles, can further reflect measured's practical situation,, reach to correct the purpose that improves vision for the preparation glasses provide truthful data more reliably.

Claims (3)

1, the liftable standard visual acuity chart of a kind of movable type, it is characterized in that: by: lifting visual acuity chart case (1), sighting target rotating mechanism, elevating mechanism, driving and reversing mechanism and controller (15) are formed, the front of lifting visual acuity chart case (1) visual acuity chart (13) that sets up standard, in lifting visual acuity chart case (1), the sighting target rotating mechanism is set, below the sighting target rotating mechanism elevating mechanism and driving and reversing mechanism, controller (15) is connected with lifting visual acuity chart case (1) by cable (14), and sighting target main control board (16) and relay circuit plate (17) are housed in controller (15); Connect and compose by sighting target rolling disc (3) and motor (4) in the sighting target rotating mechanism, elevating mechanism by: lifting motor (5) connects and composes by screw mandrel (6), guide pillar (7) and screw (8), be driving and reversing mechanism below the elevating mechanism, driving and reversing mechanism by: advance and retreat motors (9) by belt pulley (10), belt (11) with take turns (12) and connect and compose.

2, the liftable standard visual acuity chart of movable type according to claim 1 is characterized in that: the sighting target governor circuit in the described sighting target main control board (16) is by chip IC ₃3 feet connect power supply, chip IC ₃7 feet, 6 foot ground connection, chip IC ₃9 feet, 10 feet, 11 feet respectively with chip I N ₁21,22,23 feet link to each other chip IC ₃4 feet are sky feet, chip IC ₃2 feet and the LED that shows upper and lower, left and right _{9～ 12}The upper end link to each other chip IC ₃5 feet and charactron SMG ₅8 feet link to each other chip IC ₃1 foot and LED _1～8The upper end link to each other chip IC ₃12 feet and charactron SMG ₁8 feet link to each other chip IC ₃15 feet and charactron SMG ₂8 feet link to each other chip IC ₃14 feet and charactron SMG ₃8 feet link to each other chip IC ₃13 feet and charactron SMG ₄8 feet link to each other;

Chip I N ₂1 foot and resistance R ₅Left end link to each other chip I N ₂15 feet and resistance R ₄Left end link to each other resistance R ₄, R ₅Right-hand member link to each other with ground; Chip I N ₂8 feet link to each other with ground; Chip I N ₂14 feet and diode D ₈Negative terminal, diode D ₇Anode link to each other with motor 4 lines; Chip I N ₂13 feet and diode D ₆Negative terminal, diode D ₅Anode link to each other with motor 3 lines; Chip I N ₂3 feet and diode D ₄Negative terminal, diode D ₃Anode link to each other with motor 2 lines; Chip I N ₂2 feet and diode D ₂Negative terminal, diode D ₁Anode link to each other with motor 1 line; Chip I N ₂4 feet and diode D ₁, D ₃, D ₅, D ₇Negative terminal, with diode D ₉Negative terminal, with electrolysis condenser C ₅Anode and chip I N ₃1 foot link to each other; Chip I N ₂9 feet and electrolysis condenser C ₄Anode, electrolysis condenser C ₃Anode and chip I N ₃3 feet, with chip I N ₂6 feet, 11 feet, with chip I N ₁31 feet, 40 feet, with resistance R ₆1 foot, with resistance R ₂The upper end, with audion Q ₃Emitter stage links to each other; Chip I N ₂5 feet and chip I N ₁10 feet link to each other; Chip I N ₂7 feet and chip I N ₁11 feet link to each other; Chip I N ₂10 feet and chip I N ₁12 feet link to each other; Chip I N ₂12 feet and chip I N ₁13 feet link to each other; Chip I N ₃2 feet and electrolysis condenser C ₄, electrolysis condenser C ₅Negative terminal, with supply socket J ₅2 feet link to each other supply socket J with ground ₅1 foot and diode D ₉Anode link to each other; Electrolysis condenser C ₃Negative terminal and resistance R ₃Left end link to each other; Chip I N ₁14 feet are sky feet; Chip I N ₁15 feet and supply socket J ₆2 feet link to each other; Chip I N ₁16 feet and resistance R ₁Right-hand member link to each other resistance R ₁Left end and audion Q ₃Base stage links to each other, audion Q ₃Colelctor electrode link to each other 2 foot ground connection of buzzer with 1 foot of buzzer; Chip I N ₁17 feet and supply socket J ₃1 foot link to each other supply socket J ₃2 foot ground connection; Chip I N ₁18 feet and the lower end of crystal oscillator, capacitor C ₂Left end link to each other; Chip I N ₁19 feet and the upper end and the capacitor C of crystal oscillator ₁Left end link to each other; Chip I N ₁20 feet and capacitor C ₁, capacitor C ₂Right-hand member, with socket J ₁2 feet, 4 feet, 6 feet, 8 feet, 10 feet, 12 feet, 14 feet, 16 feet link to each other, with resistance R ₃The right-hand member ground connection that links to each other; Chip I N ₁The 24-30 foot be the sky foot; Chip I N ₁32 feet and charactron SM ₁-charactron SM ₅5 feet link to each other; Chip I N ₁35 feet and charactron SM ₁-charactron SM ₅1 foot links to each other; Chip I N ₁36 feet and charactron SM ₁-charactron SM ₅2 feet link to each other; Chip I N ₁37 feet and charactron SM ₁-charactron SM ₅4 feet link to each other; Chip I N ₁38 feet and LED ₂Negative terminal, with charactron SM ₁-charactron SM ₅6 feet link to each other; Chip I N ₁39 feet and LED ₁Negative terminal, with charactron SM ₁-charactron SM ₅7 feet link to each other; LED ₆Negative terminal and charactron SM ₁-charactron SM ₅9 feet link to each other; LED ₆Anode and LED ₁-LED ₈Anode link to each other, with chip IC ₃1 foot link to each other LED ₇Negative terminal and charactron SM ₁-charactron SM ₅10 feet link to each other; Socket J ₃1 foot, 2 feet link to each other with dry-reed tube switch; Socket J ₂1 foot link to each other with left end on the switch; Socket J ₂1 foot link to each other with left end on the switch; Socket J ₂3 feet link to each other with left end under the switch; Socket J ₂5 feet link to each other with the left end of switch; Socket J ₂7 feet link to each other with the right left end of switch; Socket J ₂9 feet link to each other with the left end of reset switch; Socket J ₂11 feet link to each other with the left end of permutator; Socket J ₂13 feet link to each other with the left end of time switch; Socket J ₂15 feet link to each other with the left end that time switch stops; Socket J ₂2 feet link to each other with right-hand member on the switch; Socket J ₂4 feet link to each other with right-hand member under the switch; Socket J ₂6 feet link to each other with the right-hand member on a switch left side; Socket J ₂8 feet link to each other with the right-hand member on the switch right side; Socket J ₂10 feet link to each other with the right-hand member of reset switch; Socket J ₂12 feet link to each other with the right-hand member of permutator; Socket J ₂14 feet link to each other with the right-hand member of time switch; Socket J ₂16 feet link to each other with the right-hand member that time switch stops.

3, the liftable standard visual acuity chart of movable type according to claim 1 is characterized in that: the relay circuit in the described relay circuit plate (17) is by socket CZ ₂1 foot and relay J ₁The normal battle is connected; Socket CZ ₂2 feet and relay J ₂The normal battle is connected; Socket CZ ₂3 feet and relay J ₃The normal battle is connected; Socket CZ ₂4 feet and relay J ₄The normal battle is connected; Socket CZ ₂5 feet and relay J ₅The normal battle is connected; Socket CZ ₂6 feet and relay J ₆The normal battle is connected; Socket CZ ₂7 feet and relay J ₇The normal battle is connected; Socket CZ ₂8 feet and relay J ₈The normal battle is connected; Socket CZ ₂9 feet and relay J ₉The normal battle is connected;

Socket CZ ₁1 foot and relay J ₁The coil right-hand member is connected; Socket CZ ₁2 feet and relay J ₂The coil right-hand member is connected; Socket CZ ₁3 feet and relay J ₃The coil right-hand member is connected; Socket CZ ₁4 feet and relay J ₄The coil right-hand member is connected; Socket CZ ₁5 feet and relay J ₅The coil right-hand member is connected; Socket CZ ₁6 feet and relay J ₆The coil right-hand member is connected; Socket CZ ₁7 feet and relay J ₇The coil right-hand member is connected; Socket CZ ₁8 feet and relay J ₈The coil right-hand member is connected; Socket CZ ₁9 feet and relay J ₉The coil right-hand member is connected;

Socket JX ₁1 foot and diode D ₁Anode links to each other, diode D ₁Negative terminal and chip GN _D1 foot is connected; Socket JX ₁2 feet and chip GN _DGround connection is with capacitor C ₁Negative terminal links to each other; Chip GN _D3 feet and capacitor C ₁Anode links to each other, resistance R ₁Lower end and relay J ₁-relay J ₉The coil left end is connected; Resistance R ₁Upper end and relay J ₁-relay J ₉Normally closed point be connected.

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