Liftable visual chart

Abstract

The utility model discloses a liftable visual chart which comprises a reverse plate, one side of the reverse plate is rotatably connected with a fixed base, two ends of the fixed base are provided with fixing lugs, a sliding block is arranged in the fixed base, the side edge of the fixed base is provided with a locking pulley, two sides of the locking pulley are provided with sliding grooves, and the locking pulley is provided with a sliding groove. A stopping block is connected to the sliding groove in a sliding manner; the visual chart can be hidden behind the decorative picture through the reversing plate and the fixed base and displayed when vision detection is needed, the attractiveness in families is improved, the height of the visual chart can be adjusted through the sliding block, and the visual chart is suitable for family members of different heights and universal.

Description

TECHNICAL FIELD

[0001] The utility model relates to visual acuity chart technical field, concretely is a liftable visual acuity chart. BACKGROUND

[0002] Visual acuity chart is the chart for measuring visual acuity, and the existing visual acuity chart is pasted on the lamp, and generally visual acuity chart is used in spectacle shop or hospital, and for the household visual acuity chart, one is not high in aesthetic degree, two is that family members are different in height, and it is impossible to achieve that the personnel of different heights in family use. UTILITY MODEL CONTENT

[0003] The utility model discloses a liftable visual acuity chart to solve the problem in the background art.

[0004] In order to achieve the above object, the utility model provides the following technical scheme: a liftable visual acuity chart, including reverse board, one side rotation connection fixed base of reverse board, both ends of fixed base are equipped with fixed lug, the inside of fixed base is equipped with sliding block, and the side of fixed base is equipped with locking pulley, both sides of locking pulley are equipped with sliding groove, and the sliding block is connected on the sliding groove.

[0005] Preferably, the sliding block is of T-shaped structure, the two side surfaces of the sliding block are provided with racks, and the two ends of the racks are fixedly provided with limit blocks.

[0006] Preferably, the inside of the reverse board is provided with a visual acuity chart space and a decorative picture space, and the visual acuity chart space and the decorative picture space are provided with an LED lamp set module.

[0007] Preferably, the locking pulley is engagedly connected with the rack, and the reverse board is made of light-transmitting material.

[0008] Preferably, the rotating shaft of the reverse board is made of rubber material.

[0009] Compared with the prior art, the utility model has the beneficial effects that: the visual acuity chart can be hidden behind the decorative picture through the reverse board and the fixed base, and the visual acuity chart can be displayed when visual acuity detection is needed, thereby increasing the aesthetic degree in the family, and the height of the visual acuity chart can be adjusted through the sliding block, so that the visual acuity chart is suitable for family members of different heights and is universal. DRAWING

[0010] Figure 1 It is the whole structure schematic view of the utility model;

[0011] Figure 2 It is the structure enlarged view of A place of the utility model;

[0012] Figure 3 It is the structure schematic view of the sliding block of the utility model;

[0013] Figure 4 It is reverse plate structure schematic view of the utility model;

[0014] Figure 5 It is fixed base structure schematic view of the utility model.

[0015] In the figure: 1, reverse plate;11, visual acuity space;12, decorative picture space;2, fixed base;3, fixed lug;4, sliding block;5, locking pulley;6, sliding slot;7, blocking block;8, rack;9, limit block. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0017] Please refer to 1-5, an embodiment provided by the utility model: a liftable visual acuity chart, including reverse plate 1, one side of reverse plate 1 is rotatably connected with fixed base 2, both ends of fixed base 2 are equipped with fixed lug 3, the inside of fixed base 2 is equipped with sliding block 4, the side of fixed base 2 is equipped with locking pulley 5, both sides of locking pulley 5 are equipped with sliding slot 6, blocking block 7 is slidably connected on sliding slot 6, reverse plate 1 is fixed on the wall surface by fixed base 2, so that reverse plate 1 can be turned around fixed base 2, thereby realizing the hiding of visual acuity chart, achieving the effect of improving the appearance, meanwhile, the rolling of locking pulley 5 is blocked by blocking block 7, and the height of reverse plate 1 is fixed.

[0018] Sliding block 4 is T-shaped structure, both sides of sliding block 4 are equipped with rack 8, both ends of rack 8 are fixedly equipped with limit block 9, T-shaped structure can improve the stability of reverse plate 1, prevent reverse plate 1 from shaking, limit block 9 can effectively avoid the disengagement of rack 8 and locking pulley 5.

[0019] Reverse plate 1 is equipped with visual acuity space 11 and decorative picture space 12, LED lamp group module is equipped between visual acuity space 11 and decorative picture space 12, visual acuity chart is attached in visual acuity space 11, decorative picture is attached in decorative picture space 12, thereby achieving the effect of beauty, LED lamp group module can provide light source for visual acuity space 11 and decorative picture space 12, increase brightness.

[0020] Locking pulley 5 is engagedly connected with rack 8, reverse plate 1 is made of light-transmitting material, engagement connection is more firm and reliable, light-transmitting material can improve brightness, facilitate the appreciation of decorative picture and the detection of visual acuity.

[0021] The rotating shaft of the reversing plate 1 is made of rubber material, which realizes the mute effect and increases the friction during rotation.

[0022] Working principle: first, use the screw to fix the fixed base 2 on the wall, when not need to carry on the visual detection, rotates the reversing plate 1 around the fixed base 2, makes the decorative picture space 12 face the outside space, carries out the display, thereby improves the aesthetic degree, and the LED lamp group module can provide light, increases the brightness, when need to detect the visual acuity, can rotate the reversing plate 1 around the fixed base 2, makes the visual chart space 11 face the outside, utilizes the LED lamp group module to improve the brightness, when need to adjust the visual chart height, through the rotating locking pulley 5, adjusts the height of the reversing plate 1, reaches the suitable height, utilizes the blocking block 7 to fix the position of the locking pulley 5, thereby fixes the height of the reversing plate 1, realizes the adjustment of the height of the visual chart.

Claims

1. A portable, foldable, reversible chart comprising a chart (1) characterised in that: The reverse plate (1) is rotatably connected with a fixed base (2), both ends of the fixed base (2) are provided with fixed ears (3), the inside of the fixed base (2) is provided with a sliding block (4), the side edge of the fixed base (2) is provided with a locking pulley (5), both sides of the locking pulley (5) are provided with a sliding groove (6), and the sliding groove (6) is slidably connected with a blocking block (7).

2. A portable, foldable, adjustable height eye chart according to claim 1, wherein: The sliding block (4) is of T-shaped structure, both sides of the sliding block (4) are provided with a rack (8), and both ends of the rack (8) are fixedly provided with a limiting block (9).

3. A portable, foldable, adjustable height eye chart according to claim 1, wherein: The inside of the reverse plate (1) is provided with a visual acuity table space (11) and a decorative picture space (12), and the visual acuity table space (11) and the decorative picture space (12) are provided with an LED lamp group module.

4. A portable, foldable, adjustable height eye chart according to claim 1, wherein: The locking pulley (5) is engagedly connected with the rack (8), and the reverse plate (1) is made of light-transmitting material.

5. A portable, foldable, and adjustable vision chart according to claim 1, wherein: The rotating shaft of the reverse plate (1) is made of rubber material.

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