CN212140416U

CN212140416U - Novel visual detection lamp box

Info

Publication number: CN212140416U
Application number: CN202020216985.2U
Authority: CN
Inventors: 李艳; 谢圣超
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-02-26
Filing date: 2020-02-26
Publication date: 2020-12-15
Anticipated expiration: 2030-02-26

Abstract

The utility model relates to the field of vision detection equipment, in particular to a novel vision detection lamp box, a lamp box is fixedly installed in the box body, a plurality of groups of adjustable vision detection mechanisms are arranged on the lamp box in parallel from top to bottom, each group of adjustable vision detection mechanisms comprises two scroll shafts which are installed at the rear part of the lamp box in a left-right relative rotation manner, a transparent marking tape is connected between the two scroll shafts, a plurality of letters E are marked on the marking tape at uniform intervals in the transverse direction, one side of the marking tape is attached to the front side of a light-passing board, and two ends of the marking tape are respectively; the utility model discloses a rotate the knob and drive two spool syntropys and rotate, a spool release mark area, another spool rolling mark area to two spools drive the mark area and remove, thereby make the range order of a plurality of letters E that are located on the mark area of the front side of light-passing board change, thereby avoided the measurand to remember the range order of the different letter E of opening direction in advance, and lead to the eyesight detection data inaccurate.

Description

Novel visual detection lamp box

Technical Field

The utility model relates to an eyesight test equipment field, concretely relates to novel eyesight test lamp house.

Background

All need carry out visual acuity detection during the physical examination now, the eyesight lamp house is used for detecting eyesight very simple and convenient, but current visual chart generally all because of fixed unchangeable on the eyesight detects the lamp house, when needs detect eyesight, some people remember it very easily in advance for the eyesight data that are surveyed are inaccurate, so can not play the effect of detecting eyesight.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a novel visual detection lamp house is provided to visual detection data unsafe problem among the solution prior art.

In order to solve the technical problem, the technical scheme of the utility model is that: a novel vision detection lamp box comprises a box body, wherein a lamp box is fixedly arranged in the box body, a light-passing plate is fixedly arranged on the front side wall of the lamp box, a light source is fixedly arranged in the lamp box, a window is arranged at the position, corresponding to the position of the lamp box, of the front side wall of the box body, and a transparent glass plate is fixedly arranged in the window; a plurality of groups of adjustable vision detection mechanisms are arranged on the lamp box in parallel up and down, each group of adjustable vision detection mechanisms comprises two reels which are arranged behind the lamp box in a left-right relative rotation mode, the rotating axes of the reels extend vertically, and a transparent mark belt is connected between the two reels; a plurality of letters E are marked on the marking belt at uniform intervals in the transverse direction, and the opening directions of two adjacent letters E are different; one side of the mark belt is attached to the front side of the light-transmitting plate, two ends of the mark belt are respectively wound on the two reels, and the winding directions of the two ends of the mark belt and the corresponding reels are different; the box body is also provided with a linkage mechanism for driving the mark belt to move; and a height adjusting structure is arranged on the box body.

As a preferable technical solution, the letters E on the same mark band have the same size.

Preferably, the size of the letter E on the lower marker band is smaller than that of the letter E on the upper marker band.

As a preferred technical scheme, a plurality of groups of supporting mechanisms which correspond to the plurality of reels one to one are arranged on the rear side of the lamp box, each group of supporting mechanisms comprises two supporting plates which are vertically and relatively and fixedly installed on the rear side of the lamp box, and the reels are rotatably installed between the two corresponding supporting plates.

As a preferable technical scheme, the linkage mechanism comprises belt wheels which are coaxially and fixedly installed at the lower end of the reel, and a transmission belt is connected between the left belt wheel and the right belt wheel which are opposite; the upper end of one of the reels of each group of adjustable vision detection mechanisms is coaxially and fixedly provided with a first bevel gear, the side wall of the box body is rotatably provided with an adjusting shaft, and one end of the adjusting shaft is fixedly provided with a second bevel gear meshed with the first bevel gear.

As a further improvement, a knob positioned on the outer side of the box body is fixedly arranged on the adjusting shaft.

As a preferred technical scheme, the height adjusting mechanism comprises a base, a back plate is fixedly mounted on the base, a top plate is fixedly mounted at the upper end of the back plate, and the box body is movably arranged between the base and the top plate up and down; a vertically extending guide post is fixedly installed between the base and the top plate, and a guide hole matched with the guide post is formed in the rear side wall of the box body; the automatic feeding device is characterized in that a vertically extending screw rod is arranged between the base and the top plate, the screw rod is rotatably installed between the base and the top plate through a polished rod at the end part, the box body is in threaded connection with the screw rod, and a driving motor for driving the screw rod to rotate is arranged on the base.

Due to the adoption of the technical scheme, the novel vision detection lamp box comprises a box body, wherein the lamp box is fixedly installed in the box body, a plurality of groups of adjustable vision detection mechanisms are arranged on the lamp box in parallel up and down, each group of adjustable vision detection mechanisms comprises two reels which are installed at the rear part of the lamp box in a left-right relative rotation mode, a transparent marking tape is connected between the two reels, a plurality of letters E are marked on the marking tape at uniform intervals in the transverse direction, one side of the marking tape is attached to the front side of the light-transmitting plate, and two ends of the marking tape are wound on the two reels respectively; the utility model discloses a rotate the knob and drive two reels syntropy and rotate, a reel release mark area, another reel rolling mark area, thereby two reels drive the mark area and remove, thereby make the order of arranging of a plurality of letters E on the mark area of the front side that is located the light-passing board change, thereby avoided the person being measured to remember the order of arranging of letter E that the opening direction is different in advance, and lead to the inaccurate of visual acuity test data; the utility model discloses a driving motor drives lead screw corotation or reversal, drives the box and rises or descend when lead screw corotation or reversal to the measurand who matches different heights uses.

Drawings

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

Fig. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a cross-sectional view A-A of FIG. 1;

fig. 3 is a schematic sectional view of the back of the case according to the embodiment of the present invention.

In the figure: 1-a box body; 2-a lamp box; 3-light-transmitting plate; 4-a light source; 5-a window; 6-a transparent glass plate; 7-a reel; 8-a marker band; 9-a support plate; 10-a pulley; 11-a transmission belt; 12-a first bevel gear; 13-an adjustment shaft; 14-a second bevel gear; 15-a knob; 16-a base; 17-a back plate; 18-a top plate; 19-a guide post; 20-a pilot hole; 21-a screw rod; 22-driving the motor.

Detailed Description

As shown in fig. 1 to 3, a novel vision detection lamp box comprises a box body 1, a lamp box 2 is fixedly installed in the box body 1, a light-transmitting plate 3 is fixedly installed on the front side wall of the lamp box 2, a light source 4 is fixedly installed in the lamp box 2, a window 5 is arranged at a position of the front side wall of the box body 1 corresponding to the position of the lamp box 2, and a transparent glass plate 6 is fixedly installed in the window 5; a plurality of groups of adjustable vision detection mechanisms are arranged on the lamp box 2 in parallel up and down, each group of adjustable vision detection mechanisms comprises two reels 7 which are arranged behind the lamp box 2 in a left-right relative rotation mode, the rotating axes of the reels 7 extend vertically, and a transparent marking tape 8 is connected between the two reels 7; a plurality of letters E are marked on the marking tape 8 at uniform intervals in the transverse direction, and the opening directions of two adjacent letters E are different; one side of the mark belt 8 is attached to the front side of the light-transmitting plate 3, two ends of the mark belt 8 are respectively wound on the two reels 7, and the winding directions of the two ends of the mark belt 8 and the corresponding reels 7 are different; the box body 1 is also provided with a linkage mechanism for driving the mark belt 8 to move; and a height adjusting structure is arranged on the box body 1.

The letters E on the same one of the marker bands 8 are of the same size.

The letter E on the lower marking band 8 is smaller in size than the letter E on the upper marking band 8.

The rear side of lamp house 2 is equipped with the supporting mechanism of multiunit and a plurality of 7 one-to-one of spool, every group the supporting mechanism includes relative fixed mounting from top to bottom two backup pads 9 of the rear side of lamp house 2, spool 7 rotates to be installed corresponding two between the backup pad 9.

The linkage mechanism comprises belt wheels 10 which are coaxially and fixedly arranged at the lower end of the reel 7, and a transmission belt 11 is connected between the left belt wheel 10 and the right belt wheel 10 which are opposite; a first bevel gear 12 is coaxially and fixedly mounted at the upper end of one of the reels 7 of each group of adjustable vision detection mechanisms, an adjusting shaft 13 is rotatably mounted on the side wall of the box body 1, and a second bevel gear 14 meshed with the first bevel gear 12 is fixedly mounted at one end of the adjusting shaft 13.

And a knob 15 positioned on the outer side of the box body 1 is fixedly arranged on the adjusting shaft 13.

The height adjusting mechanism comprises a base 16, a back plate 17 is fixedly arranged on the base 16, a top plate 18 is fixedly arranged at the upper end of the back plate 17, and the box body 1 is movably arranged between the base 16 and the top plate 18 up and down; a vertically extending guide post 19 is fixedly installed between the base 16 and the top plate 18, and a guide hole 20 matched with the guide post 19 is formed in the rear side wall of the box body 1; a vertically extending screw rod 21 is arranged between the base 16 and the top plate 18, the screw rod 21 is rotatably installed between the base 16 and the top plate 18 through a polished rod at the end part, the box body 1 is in threaded connection with the screw rod 21, and a driving motor 22 for driving the screw rod 21 to rotate is arranged on the base 16.

The using method comprises the following steps: when the eye-protecting box is used, a tested person is positioned right in front of the box body 1, the light-transmitting plate 3 is illuminated through the light source 4, light emitted by the light-transmitting plate 3 penetrates through the mark belt 8, so that the letter E on the mark belt 8 is clear, and the tested person recognizes the orientation of the letter E, so that the purpose of detecting eyesight is achieved.

The adjusting shaft 13 is driven to rotate by rotating the knob 15, the reel 7 connected with the first bevel gear 12 is driven to rotate by the second bevel gear 14 when the adjusting shaft 13 rotates, the reel 7 connected with the first bevel gear 12 drives the other reel 7 which is positioned in the same group of adjustable vision detection mechanisms and is not connected with the first bevel gear 12 to rotate in the same direction through a belt wheel 10 and a transmission belt 11 which are positioned below the reel 7, when the two reels 7 positioned in the same group of adjustable vision detection mechanisms rotate in the same direction, one reel 7 releases the mark belt 8, the other reel 7 winds the mark belt 8, so that the two reels 7 drive the mark tape 8 to move, thereby changing the arrangement order of the plurality of letters E on the mark tape 8 positioned on the front side of the light-transmitting plate 3, therefore, the phenomenon that the vision detection data is inaccurate due to the fact that the testee memorizes the arrangement sequence of the letters E with different opening directions in advance is avoided.

The screw rod 21 is driven to rotate forwards or backwards through the driving motor 22, and the box body 1 is driven to ascend or descend when the screw rod 21 rotates forwards or backwards, so that the box body is matched with testees with different heights to use.

The basic principles, main features and advantages of the present invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a novel visual detection lamp house which characterized in that: the light box comprises a box body, wherein a light box is fixedly arranged in the box body, a light-passing plate is fixedly arranged on the front side wall of the light box, a light source is fixedly arranged in the light box, a window is arranged at the position, corresponding to the position of the light box, of the front side wall of the box body, and a transparent glass plate is fixedly arranged in the window; a plurality of groups of adjustable vision detection mechanisms are arranged on the lamp box in parallel up and down, each group of adjustable vision detection mechanisms comprises two reels which are arranged behind the lamp box in a left-right relative rotation mode, the rotating axes of the reels extend vertically, and a transparent mark belt is connected between the two reels; a plurality of letters E are marked on the marking belt at uniform intervals in the transverse direction, and the opening directions of two adjacent letters E are different; one side of the mark belt is attached to the front side of the light-transmitting plate, two ends of the mark belt are respectively wound on the two reels, and the winding directions of the two ends of the mark belt and the corresponding reels are different; the box body is also provided with a linkage mechanism for driving the mark belt to move; and a height adjusting structure is arranged on the box body.

2. The new vision test lamp box of claim 1, characterized in that: the letters E on the same one of the marker bands are the same size.

3. The new vision test lamp box of claim 2, characterized in that: the letter E on the lower marker band is smaller in size than the letter E on the upper marker band.

4. The new vision test lamp box of claim 1, characterized in that: the rear side of lamp house is equipped with multiunit and a plurality of the supporting mechanism of spool one-to-one, every group supporting mechanism includes relative fixed mounting from top to bottom two backup pads at the rear side of lamp house, the spool rotates to be installed corresponding two between the backup pad.

5. The new vision inspection light box of claim 4, characterized in that: the linkage mechanism comprises belt wheels which are coaxially and fixedly arranged at the lower end of the reel, and a transmission belt is connected between the left belt wheel and the right belt wheel which are opposite; the upper end of one of the reels of each group of adjustable vision detection mechanisms is coaxially and fixedly provided with a first bevel gear, the side wall of the box body is rotatably provided with an adjusting shaft, and one end of the adjusting shaft is fixedly provided with a second bevel gear meshed with the first bevel gear.

6. The new vision inspection light box of claim 5, characterized in that: and a knob positioned on the outer side of the box body is fixedly arranged on the adjusting shaft.

7. The new vision test lamp box of claim 1, characterized in that: the height adjusting mechanism comprises a base, a back plate is fixedly arranged on the base, a top plate is fixedly arranged at the upper end of the back plate, and the box body is movably arranged between the base and the top plate up and down; a vertically extending guide post is fixedly installed between the base and the top plate, and a guide hole matched with the guide post is formed in the rear side wall of the box body; the automatic feeding device is characterized in that a vertically extending screw rod is arranged between the base and the top plate, the screw rod is rotatably installed between the base and the top plate through a polished rod at the end part, the box body is in threaded connection with the screw rod, and a driving motor for driving the screw rod to rotate is arranged on the base.