Medical protection type visual chart lamp box

Abstract

The utility model relates to a medical protection type visual chart lamp box, which belongs to the field of medical visual chart lamp boxes and comprises a visual chart lamp box body, a fixed box arranged at the bottom of the visual chart lamp box body, a base fixedly connected to the bottom of the fixed box and a controller fixedly mounted on the front side of the fixed box. A cleaning mechanism used for cleaning the outer surface of the visual chart lamp box body is arranged outside the visual chart lamp box body, an adjusting mechanism extending to the outside of the fixing box is arranged inside the fixing box, and the cleaning mechanism comprises a mounting box fixedly connected to the top of the visual chart lamp box body; and a positive and negative rotation motor is fixedly mounted outside the mounting box. According to the medical protection type visual chart lamp box, the forward and reverse rotation motor is started to work through the controller to drive the threaded rod to rotate, so that the cleaning brush moves left and right, dust outside the visual chart lamp box body is conveniently scraped and cleaned, the cleaning time of a user on the visual chart lamp box body is shortened, and the advantage of convenient cleaning is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical visual chart light box technical field, concretely is a medical protective visual chart light box. BACKGROUND

[0002] Visual chart is a chart for measuring visual acuity. The visual chart used in China includes international standard visual chart, logarithmic visual chart and Landolt ring visual chart. According to the function, there are near visual chart and distance visual chart. The visual chart is made according to the principle of visual angle. The examination of visual acuity is generally divided into two categories of distance visual acuity and near visual acuity. The international standard visual chart is usually used for distance visual acuity. The chart is composed of "E" characters with different sizes and directions of opening. The measurement range is from 0.1 to 1.5. Each row has a label. The visual chart operation method line of the examinee should be parallel to the row of 1.0, and the distance from the visual chart is 5 meters.

[0003] A medical protective visual chart light box is needed in the visual acuity test process. The Chinese utility model patent with publication number CN221229308U discloses a visual chart light box for visual acuity test, which comprises an outer shell for overall structure protection, a visual chart plate for visual acuity measurement, and a back plate for connection and fixation. The front side of the back plate is detachably connected to the rear side of the outer shell. The visual chart plate is located on the front side of the outer shell. The visual chart plate is a transparent plastic plate. The front side of the outer shell is fixedly connected with a first limiting clamping plate for limiting the visual chart plate. The bottom of the visual chart plate is provided with a supporting rod for supporting the visual chart plate.

[0004] However, the visual chart light box for visual acuity test of the utility model is prone to dirt on the surface of the visual chart light box due to dust sticking, which needs to be cleaned regularly. In addition, the position of the visual chart light box is fixed, so the detector needs to adjust the height of the visual chart light box body to make the visual chart parallel to the patient's eyes according to the patient's height, which increases the complexity of the detection work and cannot meet the use requirement. Therefore, a medical protective visual chart light box is proposed to solve the above problems. UTILITY MODEL CONTENTS

[0005] In view of the deficiencies of the prior art, the utility model provides a medical protective visual chart light box, which has the advantages of easy cleaning and strong practicability. The problem of dirt on the surface of the visual chart light box due to dust sticking after long-term use of the existing visual chart light box for visual acuity test is solved. The visual chart light box needs to be cleaned regularly. In addition, the position of the visual chart light box is fixed, so the detector needs to adjust the height of the visual chart light box body to make the visual chart parallel to the patient's eyes according to the patient's height, which increases the complexity of the detection work and cannot meet the use requirement.

[0006] In order to achieve the above object, the utility model provides the following technical scheme: A medical protective visual chart light box, including visual chart light box body, the fixed box of visual chart light box body bottom setting, fixedly connected with the base of fixed box bottom and the controller of fixed installation in the fixed box front, the outside of visual chart light box body is provided with the cleaning mechanism for cleaning the external surface of visual chart light box body, the inside of fixed box is provided with the adjusting mechanism extending to its outside,

[0007] The cleaning mechanism includes a mounting box fixedly connected to the top of the visual chart light box body, a reversible motor fixedly installed on the outside of the mounting box, a threaded rod extending into the mounting box fixedly connected to the output shaft of the reversible motor, a threaded block threadedly connected to the outside of the threaded rod, a connecting plate extending to the outside of the mounting box fixedly connected to the outside of the threaded block, a fixed plate fixedly connected to the bottom of the connecting plate, and a cleaning brush fixedly connected to the side of the fixed plate close to the inside of the visual chart light box body.

[0008] The adjusting mechanism includes a telescopic cylinder fixedly installed on the inner bottom wall of the fixed box, a fixed seat extending to the outside of the fixed box fixedly connected to the output shaft of the telescopic cylinder, and the visual chart light box body fixedly connected to the end of the fixed seat away from the telescopic cylinder.

[0009] Further, the reversible motor is electrically connected to the controller, and the threaded rod is rotatably connected to the inside of the mounting box.

[0010] Further, a limiting block extending into the inside of the mounting box is fixedly connected to the top of the threaded block, a limiting groove adapted to the limiting block is formed in the inside of the mounting box, and the limiting block and the limiting groove are slidably connected.

[0011] Further, the mounting box is a hollow cuboid, and a sliding opening adapted to the connecting plate is formed in the inside of the mounting box.

[0012] Further, the fixed box is a hollow cuboid, and the outer diameter of the fixed seat is adapted to the inner diameter of the fixed box.

[0013] Further, the fixed seat is a solid cylinder, and a moving opening adapted to the fixed seat is formed in the inside of the fixed box.

[0014] Further, a sliding block extending into the inside of the fixed box is fixedly connected to the outside of the fixed seat, a sliding groove adapted to the sliding block is formed in the inside of the fixed box, and the sliding block and the sliding groove are slidably connected.

[0015] Compared with the prior art, the utility model provides a medical protective visual chart light box with the following beneficial effects:

[0016] 1. This medical protective eye chart light box starts the forward and reverse motors through the controller to drive the threaded rod to rotate, so that the threaded block drives the connecting plate, the fixed plate and the cleaning brush to move left and right, which is convenient for scraping and cleaning the dust on the outside of the eye chart light box body, effectively protecting the eye chart light box body from pollution, reducing the user's cleaning time on the eye chart light box body, and achieving the advantage of easy cleaning.

[0017] 2. The medical protective eye chart light box activates the telescopic cylinder through the controller, so that the telescopic cylinder drives the fixed seat to move up and down, thereby realizing the lifting and lowering adjustment of the eye chart light box body. By setting the slider and the slide groove, the stability of the eye chart light box body during use after lifting is improved, which makes it convenient for the tester to adjust the height of the eye chart light box body according to the patient's height for testing, achieving the advantage of strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Fig. 1 This is a sectional perspective view of the structure of the utility model;

[0019] Fig. 2 This is a sectional perspective view of the structure of the cleaning mechanism of the utility model;

[0020] Fig. 3 This is a three-dimensional diagram of the structure of the utility model.

[0021] In the figure: 1 eye chart light box body, 2 fixing box, 3 base, 4 controller, 5 cleaning mechanism, 51 installation box, 52 forward and reverse motor, 53 threaded rod, 54 threaded block, 55 connecting plate, 56 fixing plate, 57 cleaning brush, 6 adjustment mechanism, 61 telescopic cylinder, 62 fixing seat, 63 slider. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] See also Figs. 1 to 3In this embodiment, a medical protective eye chart light box includes an eye chart light box body 1, a fixed box 2 arranged at the bottom of the eye chart light box body 1, a base 3 fixedly connected to the bottom of the fixed box 2 and a controller 4 fixedly installed on the front of the fixed box 2. The outside of the eye chart light box body 1 is provided with a cleaning mechanism 5 for cleaning the outer surface of the eye chart light box body 1, and the interior of the fixed box 2 is provided with an adjustment mechanism 6 extending to the outside thereof. The cleaning mechanism 5 includes a mounting box 51 fixedly connected to the top of the eye chart light box body 1, a forward and reverse motor 52 is fixedly installed on the outside of the mounting box 51, and a threaded rod 53 extending to the inside of the mounting box 51 is fixedly connected to the output shaft of the forward and reverse motor 52. The threaded rod 53 is externally threadedly connected to a threaded block 54, and the outside of the threaded block 54 is fixedly connected to a connecting plate 55 extending to the outside of the mounting box 51. The bottom of the connecting plate 55 is fixedly connected to a fixing plate 56, and a cleaning brush 57 abutting against the eye chart light box body 1 is fixedly connected to the side of the fixing plate 56 close to the inside of the eye chart light box body 1.

[0024] The forward and reverse motor 52 is started by the controller 4 to drive the threaded rod 53 to rotate, so that the threaded block 54 drives the connecting plate 55, the fixing plate 56 and the cleaning brush 57 to move left and right, so as to facilitate scraping and cleaning the dust on the outside of the eye chart light box body 1, effectively protecting the eye chart light box body 1 from pollution, reducing the user's cleaning time for the eye chart light box body 1, and achieving the advantage of easy cleaning.

[0025] The forward and reverse motors 52 are electrically connected to the controller 4 , and the threaded rod 53 is rotatably connected to the interior of the installation box 51 .

[0026] Specifically, the top of the threaded block 54 is fixedly connected to a limit block extending into the interior of the installation box 51 , and a limit groove adapted to the limit block is provided inside the installation box 51 , and the limit block and the limit groove are slidably connected.

[0027] It should be noted that the installation box 51 is a hollow cuboid, and a sliding opening adapted to fit the connecting plate 55 is provided inside the installation box 51 .

[0028] In this embodiment, the adjustment mechanism 6 includes a telescopic cylinder 61 fixedly mounted on the inner bottom wall of the fixed box 2. The output shaft of the telescopic cylinder 61 is fixedly connected to a fixing base 62 extending outside the fixed box 2. The eye chart light box body 1 is fixedly connected to the end of the fixing base 62 away from the telescopic cylinder 61. The telescopic cylinder 61 is activated by the controller 4 to extend and retract, causing the telescopic cylinder 61 to move the fixing base 62 up and down, thereby achieving the lifting and lowering adjustment of the eye chart light box body 1.

[0029] The fixing box 2 is a hollow cuboid, and the outer diameter of the fixing seat 62 is adapted to the inner diameter of the fixing box 2 .

[0030] Specifically, the fixing seat 62 is a solid cylinder, and a movable opening adapted to the fixing seat 62 is provided inside the fixing box 2 .

[0031] It should be noted that the outside of the fixing seat 62 is fixedly connected to a slider 63 extending into the interior of the fixing box 2 , and a slide groove adapted to the slider 63 is provided inside the fixing box 2 , and the slider 63 is slidably connected to the slide groove.

[0032] The working principle of the above embodiment is:

[0033] During use, the forward and reverse motors 52 are started by the controller 4 to drive the threaded rod 53 to rotate, so that the threaded block 54 drives the connecting plate 55, the fixing plate 56 and the cleaning brush 57 to move left and right, so as to scrape and clean the dust on the outside of the eye chart light box body 1, thereby reducing the time for the user to clean the eye chart light box body 1. The telescopic cylinder 61 is started to extend and retract by the controller 4, so that the telescopic cylinder 61 drives the fixing seat 62 to move up and down, thereby realizing the lifting and lowering adjustment of the eye chart light box body 1, which is convenient for the tester to adjust the height of the eye chart light box body 1 according to the patient's height for testing.

[0034] The installation method, connection method or setting method disclosed in this embodiment are all common mechanical connection methods.

[0035] Any connection method can be implemented as long as it can achieve its beneficial effects. In addition,

[0036] All electrical components are electrically connected to the main controller and power supply. The main controller can control the computer and other devices.

[0037] Conventional known equipment, those skilled in the art can realize the control of electrical components through simple programming

[0038] The existing disclosed power connection technology is also common knowledge in this field, so the specific structure and working principle thereof will not be described in detail in this embodiment.

[0039] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0040] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A medical protective eye chart light box, characterized by: The invention comprises an eye chart light box body (1), a fixed box (2) arranged at the bottom of the eye chart light box body (1), a base (3) fixedly connected to the bottom of the fixed box (2), and a controller (4) fixedly installed on the front of the fixed box (2); a cleaning mechanism (5) for cleaning the outer surface of the eye chart light box body (1) is arranged on the outside of the eye chart light box body (1); and an adjustment mechanism (6) extending to the outside of the fixed box (2) is arranged on the inside of the fixed box (2); The cleaning mechanism (5) comprises a mounting box (51) fixedly connected to the top of the eye chart light box body (1); a forward and reverse motor (52) is fixedly installed on the outside of the mounting box (51); a threaded rod (53) extending to the inside of the mounting box (51) is fixedly connected to the output shaft of the forward and reverse motor (52); the threaded rod (53) is externally threadedly connected to a threaded block (54); the threaded block (54) is externally fixedly connected to a connecting plate (55) extending to the outside of the mounting box (51); the bottom of the connecting plate (55) is fixedly connected to a fixing plate (56); a cleaning brush (57) abutting against the eye chart light box body (1) is fixedly connected to a side of the fixing plate (56) close to the inside of the eye chart light box body (1); The adjustment mechanism (6) comprises a telescopic cylinder (61) fixedly mounted on the inner bottom wall of the fixed box (2); a fixing seat (62) extending to the outside of the fixed box (2) is fixedly connected to the output shaft of the telescopic cylinder (61); and the eye chart light box body (1) is fixedly connected to an end of the fixing seat (62) away from the telescopic cylinder (61).

2. The medical protective eye chart light box according to claim 1, characterized in that: The forward and reverse motor (52) is electrically connected to the controller (4), and the threaded rod (53) is rotatably connected to the interior of the installation box (51).

3. The medical protective eye chart light box according to claim 1, characterized in that: The top of the threaded block (54) is fixedly connected to a limit block extending into the interior of the installation box (51); a limit slot adapted to the limit block is provided inside the installation box (51); the limit block and the limit slot are slidably connected.

4. The medical protective eye chart light box according to claim 1, characterized in that: The installation box (51) is a hollow cuboid, and a sliding opening adapted to the connecting plate (55) is provided inside the installation box (51).

5. The medical protective eye chart light box according to claim 1, characterized in that: The fixed box (2) is a hollow cuboid, and the outer diameter of the fixed seat (62) is adapted to the inner diameter of the fixed box (2).

6. The medical protective eye chart light box according to claim 1, characterized in that: The fixing seat (62) is a solid cylinder, and a movable opening adapted to the fixing seat (62) is provided inside the fixing box (2).

7. The medical protective eye chart light box according to claim 1, characterized in that: The exterior of the fixing seat (62) is fixedly connected to a slider (63) extending into the interior of the fixing box (2); a slide groove adapted to the slider (63) is provided inside the fixing box (2); and the slider (63) is slidably connected to the slide groove.

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