Adjusting ruler measurer

Abstract

The utility model discloses an adjusting ruler measurer which comprises a base (1), a sighting mark clamp (2), a forehead support (3) and a lower jaw support (4), a first supporting rod (5) is detachably arranged at the first end of the top face of the base (1), the forehead support (3) is detachably arranged on the upper portion of the first supporting rod (5), and the lower jaw support (4) is detachably arranged on the lower portion of the first supporting rod (5). A movable sliding rod (6) is arranged on the top surface of the base (1), is detachably nested on the top surface of the base (1), and can slide in parallel between the first end and a second end opposite to the first end along the top surface of the base (1); a second supporting rod (7) is detachably arranged on the movable sliding rod (6), a sighting mark clamp (2) is detachably arranged on the upper portion of the second supporting rod (7), and the sighting mark clamp (2) is used for fixing a sighting mark clamp. The adjusting ruler measurer is provided with the forehead support and the lower jaw support, so that comfortable examination experience can be provided for a patient.

Description

Technical Field

[0001] The utility model relates to the field of eye vision detection, in particular to an adjustable ruler measuring device. Background Art

[0002] The adjustment ruler measuring device is a type of visual function testing device. The sight mark is a tool for measuring vision. The adjustment ruler measuring device is used to check the near point of accommodation, the amplitude of accommodation, the convergent near point, and the normal value corresponding to the actual age. The adjustment ruler measuring devices currently available on the market have relatively simple functions, and the sight marks are usually in areas such as optical shops and hospitals, and cannot be carried and used. At the same time, the existing adjustment ruler measuring devices do not have forehead supports or chin supports, and there is no comfortable and fixed inspection experience; when measuring, another person is required to hold the sight mark card together, and the operation cannot be completed by one person, which is very inconvenient. Furthermore, there is no fixing device between the existing sight mark card and the human face, and it is easy to shake during the measurement process, resulting in inaccurate measurement. Utility Model Content

[0003] In view of this, the utility model provides an adjustable ruler measuring device.

[0004] The adjustable ruler measuring device proposed by the present invention includes a base, a sight mark clip, a forehead rest and a chin rest, wherein: a first support rod is detachably provided at the first end of the top surface of the base, a forehead rest is detachably provided at the upper part of the first support rod, and a chin rest is detachably provided at the lower part of the first support rod; a movable sliding rod is provided on the top surface of the base, and the movable sliding rod is detachably nested in the top surface of the base, sliding parallel to the first end and the second end opposite to the first end along the top surface of the base; a second support rod is detachably provided on the movable sliding rod, and a sight mark clip is detachably provided on the upper part of the second support rod, and the sight mark clip is used to fix the sight mark card.

[0005] Optionally, a lighting board can be detachably provided on the upper portion of the second support rod, and the lighting board is provided above the sight mark clip.

[0006] Optionally, the first support rod is retractable and can be adjusted to a height of 20 cm to 45 cm.

[0007] Optionally, the retractable structure of the first support rod is a sleeve bolt structure, which is composed of two sleeves of different diameters. The thin sleeve is inserted into the thick sleeve, and after being aligned with the second bolt on the sleeve, it is tightened and fixed with the second bolt to adjust the height of the forehead support.

[0008] Optionally, the second support rod is retractable and can be adjusted to a height of 20 cm to 45 cm.

[0009] Optionally, the retractable structure of the second support rod is a sleeve bolt structure, which is composed of two sleeves of different diameters. The thin sleeve is inserted into the thick sleeve, and after being aligned with the first bolt on the sleeve, it is tightened and fixed with the first bolt to adjust the height of the sight mark clamp.

[0010] Optionally, the jaw support is connected to the first support rod via a third bolt; the height of the jaw support is adjusted by loosening or tightening the third bolt.

[0011] Optionally, the middle portion of the base is folded or unfolded via a connecting piece.

[0012] Optionally, a scale is set on the top surface of the base, ranging from 1 to 40 cm; and the bottom surface of the base is hollow.

[0013] Beneficial effects:

[0014] (1) The adjustable ruler measuring device provided by the utility model is provided with a forehead support and a mandibular support, which can provide patients with a comfortable and fixed examination experience.

[0015] (2) The sight card support rod, chin support rod and forehead support rod can all be adjusted in height, suitable for patients of various heights and face shapes.

[0016] (3) The sight card support rod, mandibular support rod and forehead support rod can be directly disassembled. The bottom surface of the base is hollowed out and the middle of the base can be folded in half for easy storage.

[0017] (4) The base, sight card, forehead support and mandibular support rod are relatively fixed, which avoids the problem of inaccurate inspection distance caused by the unstable distance between the base and the placement point of the subject's head or the unstable position of the sight card which is easy to move in the existing technology.

[0018] (5) A lighting board is installed above the sight card holder to avoid the problem of insufficient light in the inspection environment. The lighting board and the sight card move synchronously to provide constant lighting throughout the inspection. The lighting board is equipped with a button battery, which is small in size, light in weight and easy to replace. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] For the purpose of illustration and not limitation, the present invention will now be described according to its preferred embodiments, particularly with reference to the accompanying drawings, in which:

[0020] Figure 1 This is a structural diagram of an adjustable ruler measuring device in an embodiment of the present utility model;

[0021] Figure 2 This is a structural schematic diagram of the adjustable ruler measuring device in another embodiment of the present invention from another perspective;

[0022] Figure 3This is a structural diagram of the adjustable ruler measuring device in another embodiment of the present utility model from another perspective;

[0023] In the picture:

[0024] 1. Base; 2. Sight mark clip; 3. Forehead rest; 4. Mandibular rest; 5. First support rod; 6. Movable slide rod; 7. Second support rod; 8. Lighting board; 9. Connector; 10. First bolt; 11. Second bolt; 12. Third bolt. DETAILED DESCRIPTION

[0025] Figure 1 This is a schematic diagram of the structure of the adjustable ruler measuring device in the embodiment of the present utility model. Figure 1 As shown, the adjustable ruler measuring instrument includes a base 1, a sight mark clip 2, a forehead rest 3 and a chin rest 4, wherein: a first support rod 5 is detachably provided at the first end of the top surface of the base 1, the forehead rest 3 is detachably provided at the upper part of the first support rod 5, and the chin rest 4 is detachably provided at the lower part of the first support rod 5; a movable slide rod 6 is provided on the top surface of the base 1, and the movable slide rod 6 is detachably nested in the top surface of the base 1, and can slide parallel to the top surface of the base 1 between the first end and the second end opposite to the first end; a second support rod 7 is detachably provided on the movable slide rod 6, and a sight mark clip 2 is detachably provided on the upper part of the second support rod 7, and the sight mark clip 2 is used to fix the sight mark card.

[0026] Figure 2 This is a structural diagram of another perspective of the adjustable ruler measuring device in the embodiment of the present utility model. Figure 2 As shown, a lighting board 8 can be detachably provided on the upper portion of the second support rod 7 , and the lighting board 8 is provided above the sight mark clip 2 .

[0027] In some embodiments, the first support rod 5 is retractable and can be adjusted to a height of 20 cm to 45 cm.

[0028] In some embodiments, the retractable structure of the first support rod 5 is a sleeve bolt structure, which is composed of two sleeves of different diameters. The thin sleeve is inserted into the thick sleeve, and after being aligned with the second bolt 11 on the sleeve, it is tightened and fixed with the second bolt 11 to adjust the height of the forehead rest 3.

[0029] In other embodiments, the retractable structure of the first support rod 5 is telescopic, consisting of multiple sections of round tubes of different diameters, with thinner tubes nested in thicker tubes, the length of which is adjusted by sliding and fixed by a snap or locking mechanism.

[0030] In some embodiments, the jaw support 4 is connected to the first support rod 5 via a third bolt 12 ; the height of the jaw support 4 is adjusted by loosening or tightening the third bolt 12 .

[0031] In some embodiments, the second support rod 7 is also retractable and can be adjusted to a height of 20 cm to 45 cm.

[0032] In some embodiments, the retractable structure of the second support rod 7 is a sleeve bolt structure, which is composed of two sleeves of different diameters. The thin sleeve is inserted into the thick sleeve, and after being aligned with the first bolt 10 on the sleeve, it is tightened and fixed with the first bolt 10 to adjust the height of the sight mark clamp 2.

[0033] In other embodiments, the retractable structure of the second support rod 7 is telescopic, consisting of multiple sections of round tubes of different diameters, with thinner tubes nested in thicker tubes, the length of which is adjusted by sliding and fixed by a snap or locking mechanism.

[0034] Figure 3 This is a structural diagram of another perspective of the adjustable ruler measuring device in the embodiment of the present utility model. Figure 3 As shown, the base plate has a total length of 45 cm, a width of 25 cm, and a height of 2 cm. 2.5 cm of space is left at each of the first and second ends to accommodate the movable slide bar 6 and the first support bar 5. A scale is provided on the top surface of the base 1, ranging from 1 to 40 cm. The first end 0 of the top surface is located on the side of the chin support device, and the 20 cm scale is foldable. The bottom surface of the base 1 is hollowed out to store sight cards and other components when not in use.

[0035] In some embodiments, the movable slide bar is slightly wider than the base plate and can be directly inserted for use. When moving, it drives the entire sight mark card holder with a distance between 0 and 40 cm, which is convenient for adjusting parameter measurement. The sight mark card clamp is used to fix various sight mark cards used for measurement. If the sight mark card is made of metal, the sight mark card can be fixed by magnetic attraction, or it can be directly fixed with a clip. The size of the sight mark card clamp can be 20cm*12cm, which can be used to fix most sight mark cards on the market. For example, the sight mark card size of the Opt reversal camera is 21cm*14cm. The size of the lighting board is slightly longer than 12cm, with a card slot and magnetic attraction. It can be directly stuck on the top of the sight mark card clamp and move with the sight mark rod. The size is 12cm*5cm. The lighting board can replace the button battery and is easy to use.

[0036] The above specific embodiments do not limit the scope of protection of the present invention. Those skilled in the art will appreciate that various modifications, combinations, sub-combinations, and substitutions may occur depending on design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention are intended to be included within the scope of protection of the present invention.

Claims

1. An adjustable ruler measuring device, characterized in that: It comprises a base (1), a sight mark clip (2), a forehead support (3) and a mandibular support (4), wherein: A first support rod (5) is detachably provided on the first end of the top surface of the base (1), a forehead support (3) is detachably provided on the upper portion of the first support rod (5), and a mandibular support (4) is detachably provided on the lower portion of the first support rod (5); A movable slide bar (6) is provided on the top surface of the base (1), and the movable slide bar (6) is detachably nested on the top surface of the base (1) and slides parallel to the top surface of the base (1) between the first end and a second end opposite to the first end; A second support rod (7) is detachably provided on the movable slide rod (6), and a sight mark card holder (2) is detachably provided on the upper portion of the second support rod (7), and the sight mark card holder (2) is used for fixing the sight mark card.

2. The adjustable ruler measuring device according to claim 1, characterized in that: The upper portion of the second support rod (7) can also be provided with a detachable lighting panel (8), and the lighting panel (8) is provided above the sight mark clip (2).

3. The adjustable ruler measuring device according to claim 1, characterized in that: The first support rod (5) is retractable and can be adjusted to a height of 20 cm to 45 cm.

4. The adjustable ruler measuring device according to claim 3, characterized in that: The telescopic structure of the first support rod (5) is a sleeve bolt structure, which is composed of two sleeves of different diameters. The thin sleeve is inserted into the thick sleeve, and after being aligned with the second bolt (11) on the sleeve, it is fastened and fixed with the second bolt (11), thereby adjusting the height of the forehead support (3).

5. The adjustable ruler measuring device according to claim 1, characterized in that: The second support rod (7) is retractable and can be adjusted to a height of 20 cm to 45 cm.

6. The adjustable ruler measuring device according to claim 5, characterized in that: The telescopic structure of the second support rod (7) is a sleeve bolt structure, which is composed of two sleeves of different diameters. The thin sleeve is inserted into the thick sleeve, and after being aligned with the first bolt (10) on the sleeve, it is tightened and fixed with the first bolt (10), thereby adjusting the height of the sight mark clamp (2).

7. The adjustable ruler measuring device according to claim 1, characterized in that: The jaw support (4) is connected to the first support rod (5) via a third bolt (12); the height of the jaw support (4) is adjusted by loosening or tightening the third bolt (12).

8. The adjustable ruler measuring device according to claim 1, characterized in that: The middle part of the base (1) can be folded or unfolded via a connecting piece (9).

9. The adjustable ruler measuring device according to claim 1, characterized in that: The top surface of the base (1) is provided with a scale ranging from 1 to 40 cm; the bottom surface of the base (1) is hollowed out.

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