CN216702524U

CN216702524U - Ophthalmic easy to use visual chart

Info

Publication number: CN216702524U
Application number: CN202123112088.0U
Authority: CN
Inventors: 乔骏
Original assignee: Lanzhou Huaxia Ophthalmic Hospital Co ltd
Current assignee: Lanzhou Huaxia Ophthalmic Hospital Co ltd
Priority date: 2021-12-13
Filing date: 2021-12-13
Publication date: 2022-06-10
Anticipated expiration: 2031-12-13

Abstract

The utility model discloses an ophthalmological visual chart convenient to use, which comprises a box body, a storage box, a loop bar and a first connecting plate, wherein the back surface of the storage box is provided with a mounting box, the front surface of the box body is provided with a supporting bottom plate, and the outer wall of the box body is provided with an L-shaped fixed base. The visual chart box has the advantages that the visual chart box is provided with the storage box and the mounting box, the effect of convenient carrying and use of the visual chart is achieved, the handle is firstly rotated to drive the rotating rod to rotate, the visual chart body is drawn into the storage box through the rotation of the rotating rod, then the handle is pulled to move the storage box, the inserting block outside the storage box is separated from the inserting slot at the moment, the storage box is pulled out from the box body, the effect of convenient carrying and use of the visual chart is achieved, and the vision can be detected anytime and anywhere.

Description

Ophthalmic easy to use visual chart

Technical Field

The utility model relates to the technical field of vision detection tools, in particular to an eye chart convenient to use for ophthalmology.

Background

The visual chart is exactly the chart that is used for detecting eyesight to the preliminary condition of understanding visual function that can be simply rapid, traditional visual chart is general in the aspect of portable use effect, makes the service environment of visual chart receive the restraint, lacks the protection to the visual chart in addition, makes the visual chart receive the damage easily, the fine solution these problems of appearance of an ophthalmic visual chart convenient to use.

The existing visual chart has the following defects:

1. the reference document CN211066538U discloses a novel visual chart for ophthalmology, the right item of protection is' a novel visual chart for ophthalmology, the side surface of the visual chart is connected with a placing box for placing a shielding spoon, the lower end of the placing box is open, the upper end of the placing box is sealed, the upper end of the placing box is internally connected with a magnet C and a magnet B, a spring is connected between the magnet C and the magnet B in the placing box, one end of the spring is connected with the bottom in the placing box, the other end of the spring is connected with a connecting block, the connecting block is connected with the handle end of the shielding spoon, the upper end of the connecting block is provided with a magnet A, the magnet C and the magnet B are mutually attracted and connected, and when no external force exists, the connecting block is positioned in the placing box under the action of the spring; the length of the placing box is the same as that of the handle of the shielding spoon. The device is convenient to replace and has longer service life. However, the visual chart has a common effect in the aspect of convenient carrying and use, so that the use environment of the visual chart is restricted, and the vision can not be detected anytime and anywhere;

2. the existing visual chart lacks the protection to the visual chart, so that the visual chart is easily damaged, and the service life of the visual chart is shortened.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an eye chart convenient to use for ophthalmology, which solves the problems of common carrying and using effects and lack of protection on the eye chart in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: an eye chart convenient to use for ophthalmology comprises a box body, a storage box, a loop bar and a first connecting plate, wherein a mounting box is mounted on the back of the storage box;

the front surface of the box body is provided with a supporting bottom plate, and the outer wall of the box body is provided with an L-shaped fixed base;

the movable block is installed to the inner wall symmetric distribution of receiver, the inserted block is installed to the outer wall symmetric distribution of receiver, the rotary rod is installed to the inner wall of movable block, and the one end of rotary rod runs through the receiver, the one end of rotary rod and the outer wall connection of handle, the visual chart body is installed in the front of rotary rod.

Preferably, the rotation axis is installed to the top symmetric distribution of supporting baseplate, and the sleeve is installed to the outer wall symmetric distribution of rotation axis, and the protective cover is installed to telescopic positive symmetric distribution.

Preferably, the inner wall of the box body is provided with a slot, and one end of the slot is matched with the plug block.

Preferably, the threaded groove is installed to the inside roof of mounting box, and the threaded rod is installed to the inner wall of threaded groove, and the one end of threaded rod runs through the threaded groove, and the one end and the bottom of rotatory handle of threaded rod are connected.

Preferably, the inner wall of the loop bar is provided with a moving block, the inner wall of the moving block is connected with the outer wall of the threaded rod, and the outer wall of the loop bar is symmetrically provided with fixing pieces.

Preferably, a first connecting shaft is installed at the top of the first connecting plate, a movable connecting plate is installed on the outer wall of the first connecting shaft, one end of the movable connecting plate is connected with the outer wall of the second connecting shaft, and the second connecting plate is installed at the bottom of the second connecting shaft.

Preferably, electric push rod is installed to the outer wall of L shape unable adjustment base, and electric push rod's one end and the outer wall connection of pinion rack, and the gear is installed in the front of pinion rack, and gear and pinion rack mesh mutually.

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

1. the visual chart is characterized in that the installation box is provided with a fixing piece, the fixing piece is arranged on the installation box, the handle is rotated to drive the rotating rod to rotate, the visual chart body is drawn into the storage box through the rotation of the rotating rod, the handle is pulled to move the storage box, the inserting block outside the storage box is separated from the inserting groove at the moment, the storage box is pulled out from the interior of the box body, the rotating handle is rotated to drive the threaded rod to rotate in the threaded groove, the moving block moves downwards through the rotation of the threaded rod to drive the sleeve rod to move downwards, and the fixing piece is finally used for fixing, so that the visual chart is convenient to carry and use, and the vision can be detected anytime and anywhere.

2. The utility model achieves the protection effect on the visual chart by installing the gear, the toothed plate and the protective cover, firstly, the toothed plate is driven to move backwards after the electric push rod is electrified, meanwhile, the toothed plate drives the gear to rotate, the gear drives the second connecting plate to rotate, simultaneously drives the second connecting shaft to move, the second connecting shaft drives the movable connecting plate to move, the movable connecting plate drives the first connecting shaft to move, the first connecting shaft drives the first connecting plate to rotate, the first connecting plate and the second connecting plate simultaneously drive the rotating shaft to rotate, the rotating shaft drives the sleeve to rotate, and finally, the sleeve drives the protective cover to rotate until the protective cover is blocked on the front of the visual chart body, so that the protective effect on the visual chart is achieved, the visual chart cannot be damaged, and the service life of the visual chart is prolonged.

Drawings

FIG. 1 is a schematic view of the external structure of the present invention;

FIG. 2 is a schematic cross-sectional front view of the present invention;

FIG. 3 is a schematic view of a portion of the mounting box of the present invention;

fig. 4 is a schematic structural diagram of a part of the first connection, the second connection and the electric push rod of the utility model.

In the figure: 1. a case body; 101. inserting slots; 2. a storage box; 201. a movable block; 202. inserting a block; 203. rotating the rod; 204. a handle; 205. a visual chart body; 3. mounting a box; 301. a thread groove; 302. a threaded rod; 303. rotating the handle; 4. a loop bar; 401. a moving block; 402. a fixing member; 5. a support base plate; 501. a rotating shaft; 502. a sleeve; 503. a protective cover; 6. a first connecting plate; 601. a first connecting shaft; 602. a movable connecting plate; 603. a second connecting shaft; 604. a second connecting plate; 7. an L-shaped fixed base; 701. an electric push rod; 702. a toothed plate; 703. a gear.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1: referring to fig. 1, 2 and 3, a visual chart convenient for ophthalmology use comprises a box body 1, a receiving box 2, a loop bar 4 and a first connecting plate 6, wherein the back surface of the receiving box 2 is provided with a mounting box 3, the receiving box 2 provides a mounting position for the mounting box 3, the mounting box 3 protects, the front surface of the box body 1 is provided with a supporting bottom plate 5, the outer wall of the box body 1 is provided with an L-shaped fixed base 7, the box body 1 provides a mounting position for the supporting bottom plate 5, the supporting bottom plate 5 plays a supporting role, the L-shaped fixed base 7 plays a fixed connection role, the inner wall of the box body 1 is provided with a slot 101, one end of the slot 101 is matched with an insert 202, the box body 1 provides a mounting position for the slot 101, the slot 101 is matched with the insert 202 to play a fixed connection role, the top wall inside the mounting box 3 is provided with a thread groove 301, the inner wall of the thread groove 301 is provided with a threaded rod 302, and one end of the threaded rod 302 penetrates through the threaded groove 301, one end of the threaded rod 302 is connected with the bottom of the rotating handle 303, the moving block 401 is installed on the inner wall of the sleeve rod 4, the inner wall of the moving block 401 is connected with the outer wall of the threaded rod 302, the fixing pieces 402 are symmetrically distributed on the outer wall of the sleeve rod 4, the threaded rod 302 is driven to rotate inside the threaded groove 301 by rotating the rotating handle 303, meanwhile, the moving block 401 moves downwards by means of rotation of the threaded rod 302, the sleeve rod 4 is driven to move downwards, and finally the fixing pieces 402 are used for fixing.

Example 2: referring to fig. 2 and 3, the inner wall of the storage box 2 is symmetrically provided with movable blocks 201, the outer wall of the storage box 2 is symmetrically provided with insertion blocks 202, the inner wall of the movable blocks 201 is provided with a rotating rod 203, one end of the rotating rod 203 penetrates through the storage box 2, one end of the rotating rod 203 is connected with the outer wall of a handle 204, the front surface of the rotating rod 203 is provided with a visual chart body 205, firstly, the handle 204 is rotated to drive the rotating rod 203 to rotate, the visual chart body 205 is drawn into the storage box 2 by the rotation of the rotating rod 203, then, the handle 204 is pulled to move the storage box 2, at this time, the insertion block 202 outside the storage box 2 is separated from the slot 101 to pull the storage box 2 out from the inside of the box body 1, then, the rotating handle 303 is rotated to drive the threaded rod 302 to rotate in the threaded slot 301, meanwhile, the moving block 401 is moved downwards by the rotation of the threaded rod 302 to drive the sleeve rod 4 to move downwards, finally, the fixing piece 402 is used for fixing, so that the visual chart body 205 is convenient to carry and use.

Example 3: referring to fig. 1 and 4, a rotating shaft 501 is symmetrically arranged on the top of a supporting base plate 5, a sleeve 502 is symmetrically arranged on the outer wall of the rotating shaft 501, a protecting cover 503 is symmetrically arranged on the front surface of the sleeve 502, a first connecting shaft 601 is arranged on the top of a first connecting plate 6, a movable connecting plate 602 is arranged on the outer wall of the first connecting shaft 601, one end of the movable connecting plate 602 is connected with the outer wall of a second connecting shaft 603, a second connecting plate 604 is arranged on the bottom of the second connecting shaft 603, an electric push rod 701 is arranged on the outer wall of an L-shaped fixing base 7, one end of the electric push rod 701 is connected with the outer wall of a toothed plate 702, a gear 703 is arranged on the front surface of the toothed plate 702, the gear 703 is engaged with the toothed plate 702, the toothed plate 702 is driven to move backwards by the electric push rod 701, the toothed plate 702 drives the gear 703 to rotate, the gear 703 drives the second connecting plate 604 to rotate, meanwhile, the second connecting shaft 603 is driven to move, the second connecting shaft 603 is used for driving the movable connecting plate 602 to move, the movable connecting plate 602 drives the first connecting shaft 601 to move, the first connecting shaft 601 drives the first connecting plate 6 to rotate, the first connecting plate 6 and the second connecting plate 604 drive the rotating shaft 501 to rotate simultaneously, the rotating shaft 501 drives the sleeve 502 to rotate, and finally the sleeve 502 drives the protective cover 503 to rotate until the protective cover is blocked on the front side of the visual chart body 205, so that the visual chart body 205 is protected, the visual chart body 205 cannot be damaged, and the service life of the visual chart body 205 is prolonged.

The working principle is as follows: firstly, the handle 204 is rotated to drive the rotating rod 203 to rotate, the visual chart body 205 is drawn into the storage box 2 by utilizing the rotation of the rotating rod 203, then the handle 204 is pulled to move the storage box 2, at the moment, the insert block 202 outside the storage box 2 is separated from the slot 101 to pull the storage box 2 out of the interior of the box body 1, then the rotating handle 303 is rotated to drive the threaded rod 302 to rotate in the threaded groove 301, meanwhile, the moving block 401 utilizes the rotation of the threaded rod 302 to move downwards to drive the sleeve rod 4 to move downwards, and finally, the fixing piece 402 is utilized to fix, so that the portable use effect on the visual chart body 205 is achieved, firstly, the toothed plate 702 is driven to move backwards by the electric push rod 701 after being electrified, meanwhile, the toothed plate 702 drives the gear to rotate, the gear 703 then drives the second connecting plate 604 to rotate, simultaneously drives the second connecting shaft 603 to move, and utilizes the second connecting shaft 603 to drive the movable connecting plate 602 to move, the movable connecting plate 602 drives the first connecting shaft 601 to move, the first connecting shaft 601 drives the first connecting plate 6 to rotate, the first connecting plate 6 and the second connecting plate 604 drive the rotating shaft 501 to rotate simultaneously, the rotating shaft 501 drives the sleeve 502 to rotate, and finally the sleeve 502 drives the protective cover 503 to rotate until the protective cover is arranged on the front surface of the visual chart body 205, so that the visual chart body 205 is protected, the visual chart body 205 cannot be damaged, and the service life of the visual chart body 205 is prolonged.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides an ophthalmic for use eye chart convenient to use, includes box body (1), receiver (2), loop bar (4) and connecting plate (6), its characterized in that: the back surface of the storage box (2) is provided with a mounting box (3);

the front surface of the box body (1) is provided with a supporting bottom plate (5), and the outer wall of the box body (1) is provided with an L-shaped fixed base (7);

the inner wall symmetric distribution of receiver (2) installs movable block (201), the outer wall symmetric distribution of receiver (2) installs inserted block (202), rotary rod (203) are installed to the inner wall of movable block (201), and the one end of rotary rod (203) runs through receiver (2), the one end of rotary rod (203) and the outer wall connection of handle (204), visual chart body (205) are installed in the front of rotary rod (203).

2. An ophthalmic convenient to use eye chart according to claim 1, wherein: rotation axis (501) are installed in the top symmetric distribution of supporting baseplate (5), and sleeve (502) are installed in the outer wall symmetric distribution of rotation axis (501), and protective cover (503) are installed in the positive symmetric distribution of sleeve (502).

3. An ophthalmic convenient to use eye chart according to claim 1, wherein: a slot (101) is installed on the inner wall of the box body (1), and one end of the slot (101) is matched with the inserting block (202).

4. An ophthalmic convenient to use eye chart according to claim 1, wherein: thread groove (301) are installed to the inside roof of mounting box (3), and threaded rod (302) are installed to the inner wall of thread groove (301), and threaded groove (301) are run through to the one end of threaded rod (302), and the one end of threaded rod (302) is connected with the bottom of rotatory handle (303).

5. An ophthalmic convenient to use eye chart according to claim 1, wherein: the inner wall of the loop bar (4) is provided with a moving block (401), the inner wall of the moving block (401) is connected with the outer wall of the threaded rod (302), and the outer wall of the loop bar (4) is symmetrically provided with fixing pieces (402).

6. An ophthalmic convenient to use eye chart according to claim 1, wherein: a connecting shaft (601) is installed at the top of the connecting plate (6), a movable connecting plate (602) is installed on the outer wall of the connecting shaft (601), one end of the movable connecting plate (602) is connected with the outer wall of the second connecting shaft (603), and the bottom of the second connecting shaft (603) is provided with the second connecting plate (604).

7. An ophthalmic convenient to use eye chart according to claim 1, wherein: electric push rod (701) is installed to the outer wall of L shape unable adjustment base (7), and the one end of electric push rod (701) is connected with the outer wall of pinion rack (702), and gear (703) are installed to the front of pinion rack (702), and gear (703) and pinion rack (702) mesh mutually.