CN220212889U

CN220212889U - Vision detection frame

Info

Publication number: CN220212889U
Application number: CN202321008786.2U
Authority: CN
Inventors: 王玉丽
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-04-28
Filing date: 2023-04-28
Publication date: 2023-12-22
Anticipated expiration: 2033-04-28

Abstract

The utility model discloses a vision testing frame, which belongs to the technical field of vision testing and comprises a lifting support rod, wherein a mounting frame is mounted at the upper end of the lifting support rod, a vision chart is mounted in the mounting frame, a connecting structure is mounted on the lifting support rod in an up-down sliding manner, the connecting structure consists of a mounting base rod and a U-shaped connecting plate, the U-shaped connecting plate is mounted on the outer wall of the mounting base rod, a cleaning structure is mounted at the rear end of the U-shaped connecting plate and at the front end of the mounting frame, the connecting structure is arranged on the lifting support rod, the cleaning structure is arranged on the connecting structure, the connecting structure moves up and down on the lifting support rod, at the moment, the connecting structure can drive the cleaning structure to move, a cleaning cotton pad on the cleaning structure can rub against the vision chart, and dust adhered on the vision chart can be erased by the cleaning cotton pad on the cleaning structure.

Description

Vision detection frame

Technical Field

The utility model relates to the technical field of vision testing, in particular to a vision testing frame.

Background

The visual chart is a chart for measuring vision. The visual chart is designed according to the principle of visual angle. The visual angle is the included angle formed by the light rays emitted by two points outside the eye and passing through the junction inside the eye (namely the allied angle formed when two points of an external object are injected into the eye to intersect). Normally, the human eye can distinguish that the minimum distance between two points forms the minimum viewing angle, i.e. a split viewing angle. The visual acuity test chart is designed to effectively detect the visual acuity by taking a viewing angle as a unit.

The utility model provides a visual testing stand of present application number CN202021989314.6, though it is through setting up motor, the screwed pipe, the screw post, the slide bar, the keysets, pivot and bearing, make it mutually support simultaneously, can carry out the free regulation to the height of frame and visual testing stand, thereby make the high measurement work that is applicable to the various different height personnel of visual testing stand, and then improved the practicality of visual testing stand, but its visual testing stand is because exposing in the air for a long time, thereby can adhere a large amount of dust easily on the visual testing stand, and the dust of adhesion can block user's sight, and then can reduce the accuracy of user's observation visual testing stand, so need regularly clean the visual testing stand, nevertheless owing to do not set up corresponding cleaning device on its visual testing stand, thereby make the cleanness of visual testing stand can only be carried out with the help of the foreign matter, like instrument such as using rag, the mode efficiency of this kind of clean visual testing stand is lower and the effect is poor, simultaneously make the practicality of visual testing stand also relatively poor, so a visual testing stand that has high-efficient clean structure is needed.

Disclosure of Invention

The utility model mainly aims to provide a vision testing frame which can effectively solve the problems in the background technology.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

the utility model provides a vision testing frame, includes the lift bracing piece, the installing frame is installed to the upper end of lift bracing piece, install the visual chart in the installing frame, slidable mounting has connection structure about the lift bracing piece, connection structure comprises installation basic pole and U-shaped connecting plate, U-shaped connecting plate installs on the outer wall of installation basic pole, clean structure is installed at the front end of installing frame to the rear end of U-shaped connecting plate, clean structure comprises mounting base plate and clean cotton pad, clean cotton pad installs the rear end at mounting base plate.

Preferably, a mounting bottom plate is arranged at the lower end of the lifting support rod, and the mounting bottom plate is fixedly connected with the lifting support rod.

Preferably, supporting legs are arranged on the outer wall of the mounting bottom plate, universal wheels are arranged at the lower ends of the supporting legs, and the supporting legs are fixedly connected with the mounting bottom plate and the universal wheels.

Preferably, the installation frame is fixedly installed at the upper end of the lifting support rod, and the installation frame is fixedly connected with the visual chart installed in the installation frame.

Preferably, the installation through hole has been seted up on the installation basic pole on the connection structure, the installation through hole link up the upper and lower both ends of installation basic pole, installation basic pole is through the installation through hole slidable mounting about on it on the lift bracing piece of seting up, installation basic pole and U-shaped connecting plate are fixed connection, just the U-shaped connecting plate is located the front side of lift bracing piece.

Preferably, the mounting substrate on the cleaning structure is fixedly connected with the cleaning cotton pad, and the mounting substrate is fixedly connected with the U-shaped connecting plate.

Compared with the prior art, the utility model has the following beneficial effects:

through set up connection structure on the lift bracing piece to and set up clean structure on connection structure, make it mutually support, reciprocate connection structure on the lift bracing piece, connection structure can drive clean structure and remove this moment, thereby along with clean structure's oscilaltion, clean cotton pad on the clean structure can produce the friction with the visual acuity test chart, and then clean cotton pad on the clean structure can erase the dust of adhesion on the visual acuity test chart, and final connection structure and clean structure's existence can make the clean efficiency of visual acuity test chart higher and the effect better, has also promoted the practicality of visual acuity test frame simultaneously.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic structural view of the connecting structure and the cleaning structure of the present utility model;

fig. 3 is an enlarged view of the utility model at a of fig. 2.

In the figure: 1. lifting the support rod; 2. a mounting frame; 3. a connection structure; 4. a cleaning structure; 5. a mounting base plate; 6. support legs; 7. a universal wheel; 8. an eye chart; 9. installing a base rod; 10. a U-shaped connecting plate; 11. mounting through holes; 12. a mounting substrate; 13. cleaning the cotton pad.

Detailed Description

The utility model is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the utility model easy to understand.

Referring to fig. 1, 2 and 3, an eyesight test stand comprises a lifting support rod 1, wherein a mounting bottom plate 5 is mounted at the lower end of the lifting support rod 1, the mounting bottom plate 5 is fixedly connected with the lifting support rod 1, supporting legs 6 are mounted on the outer wall of the mounting bottom plate 5, universal wheels 7 are mounted at the lower ends of the supporting legs 6, the supporting legs 6 are fixedly connected with the mounting bottom plate 5 and the universal wheels 7, a mounting frame 2 is mounted at the upper end of the lifting support rod 1, an eyesight test stand 8 is mounted in the mounting frame 2, the mounting frame 2 is fixedly connected with the eyesight test stand 8 mounted in the mounting frame, and a user can stand in front of the eyesight test stand 8 and keep a certain distance with the eyesight test stand 8 at the same time, so that the direction of an E-shaped character on the eyesight test stand 8 is observed, the eyesight test stand 8 is completed, the height of the eyesight test stand 8 can be adjusted through the lifting support rod 1 in the use process, the height of the eyesight test stand 8 is suitable for measuring work of various height personnel, and the universal wheels 7 can be moved through the test stand to adjust the eyesight test stand 8.

Referring to fig. 1, fig. 2, fig. 3, sliding mounting has connection structure 3 about lift bracing piece 1, connection structure 3 comprises installation basic pole 9 and U-shaped connecting plate 10, U-shaped connecting plate 10 installs on the outer wall of installation basic pole 9, install through-hole 11 on the installation basic pole 9 on the connection structure 3, install through-hole 11 and link up the upper and lower both ends of installation basic pole 9, installation basic pole 9 is through the installation through-hole 11 slidable mounting that sets up on it on lift bracing piece 1 from top to bottom, installation basic pole 9 is fixed connection with U-shaped connecting plate 10, and U-shaped connecting plate 10 is located the front side of lift bracing piece 1, the rear end of U-shaped connecting plate 10 just installs clean structure 4 at the front end of installing frame 2, clean structure 4 comprises installation base plate 12 and clean cotton pad 13, clean cotton pad 13 installs the rear end at installation base plate 12, install base plate 12 and clean cotton pad 13 on clean structure 4 and be fixed connection, and install connection structure 3 through the installation through-hole 11 that sets up on lift bracing piece 1, and set up clean structure 3 on connection structure 3, thereby clean structure 3 can be improved with the clean structure 3 and clean the visual test table 8 is carried out on the visual test table 3, and the visual test table 8 is clean with the clean structure is better, and the visual test table 8 can be carried out simultaneously with the clean structure is clean structure 8, and the visual test table is clean with the visual table 8.

It should be noted that, the utility model is a vision testing stand, in the use process, if the dust adhered on the vision chart 8 needs to be cleaned, the cleaning cotton pad 13 on the cleaning structure 4 can be used for cleaning the vision chart 8, the method is that the connecting structure 3 is firstly moved up and down on the lifting support rod 1, at the moment, the connecting structure 3 can drive the cleaning structure 4 to move, so that the cleaning cotton pad 13 on the cleaning structure 4 can rub with the vision chart 8 along with the up and down movement of the cleaning structure 4, the dust adhered on the vision chart 8 can be erased by the cleaning cotton pad 13 on the cleaning structure 4, the cleaning efficiency of the vision chart 8 is higher and the effect is better due to the existence of the connecting structure 3 and the cleaning structure 4, meanwhile, the practicability of the vision testing stand is also improved, and after the vision chart 8 is cleaned, the connecting structure 3 and the cleaning structure 4 are moved down and reset, so that the cleaning structure 4 can be moved to the lower part of the vision chart 8 finally.

The foregoing description is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, but although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the technical solutions described in the foregoing embodiments, or that equivalents may be substituted for part of the technical features thereof. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a vision testing stand, includes lift bracing piece (1), mounting frame (2) are installed to the upper end of lift bracing piece (1), install visual acuity chart (8), its characterized in that in mounting frame (2): the utility model discloses a cleaning device for a cotton pad, including lifting support rod (1), connection structure (3) is slidable mounting from top to bottom about lifting support rod (1), connection structure (3) comprises installation foundation bar (9) and U-shaped connecting plate (10), U-shaped connecting plate (10) are installed on the outer wall of installation foundation bar (9), clean structure (4) are installed at the front end of installing frame (2) and the rear end of U-shaped connecting plate (10), clean structure (4) comprise mounting base plate (12) and clean cotton pad (13), clean cotton pad (13) are installed at the rear end of mounting base plate (12).

2. A vision testing stand according to claim 1, characterized in that: the lower extreme of lift bracing piece (1) is installed mounting plate (5), mounting plate (5) are fixed connection with lift bracing piece (1).

3. A vision testing stand according to claim 2, wherein: support legs (6) are arranged on the outer wall of the mounting base plate (5), universal wheels (7) are arranged at the lower ends of the support legs (6), and the support legs (6) are fixedly connected with the mounting base plate (5) and the universal wheels (7).

4. A vision testing stand according to claim 3, characterized in that: the installation frame (2) is fixedly installed at the upper end of the lifting support rod (1), and the installation frame (2) is fixedly connected with the visual chart (8) installed in the installation frame.

5. A vision testing stand according to claim 4, wherein: the installation through-hole (11) has been seted up on installation basic pole (9) on connection structure (3), the upper and lower both ends of installation basic pole (9) are link up to installation through-hole (11), installation basic pole (9) are through installation through-hole (11) slidable mounting from top to bottom of seting up on it on lift bracing piece (1), installation basic pole (9) are fixed connection with U-shaped connecting plate (10), just U-shaped connecting plate (10) are located the front side of lift bracing piece (1).

6. A vision testing stand according to claim 5, wherein: the mounting substrate (12) and the cleaning cotton pad (13) on the cleaning structure (4) are fixedly connected, and the mounting substrate (12) and the U-shaped connecting plate (10) are fixedly connected.