CN216962419U - Improved tool for measuring collective near points - Google Patents
Improved tool for measuring collective near points Download PDFInfo
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- CN216962419U CN216962419U CN202122905135.0U CN202122905135U CN216962419U CN 216962419 U CN216962419 U CN 216962419U CN 202122905135 U CN202122905135 U CN 202122905135U CN 216962419 U CN216962419 U CN 216962419U
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Abstract
The utility model provides an improved tool for measuring a set near point, which comprises a near vision card, a transmission mechanism, a device base, a jaw support structure, a device fixing frame and a remote controller, wherein the jaw support structure is arranged on one side of the device fixing frame, the bottom of the device fixing frame is fixedly connected to the device base, the top of the device fixing frame is fixedly connected to the transmission mechanism, and the top of the transmission mechanism is also fixedly connected with the near vision card. The improved tool for measuring the set near point has the advantages of simple structure and reasonable design, and can reduce the influence of human factors in the measuring process to ensure that the measurement is more accurate. Specifically, the method comprises the following steps: the visual target is driven by the driving motor to move from far to near or from near to far according to 3-5 cm/s, so that errors caused by different speeds of manually moving the visual target are avoided, and the measurement is more accurate; the examined person can wear the full-correction frame mirror or the trial frame mirror, the visual field range is wide, and the shielding caused by the lung head of the comprehensive optometry instrument is eliminated; the conveyer belt is marked with scales which take 1 millimeter as a unit, so that the accurate distance can be conveniently measured.
Description
Technical Field
The utility model belongs to the field of visual inspection, and particularly relates to an improved tool for measuring a set near point.
Background
At present, three kinds of tools for measuring a set near point exist, one of the three kinds of tools is that the near rod of the comprehensive optometry instrument is used for measuring, the visual target rotates in an eyeball along with the moving of the visual target, the visual target is shielded inside a visual hole of the comprehensive optometry instrument, an inspector moves the visual target with a hand in the moving process, the moving speed of each inspector cannot be accurate and is 3-5 cm/s according to the measurement requirement, and an error exists. The other is that the adjustment sighting mark on the pen lamp or the pen point or the pen is used for measurement, and the moving speed of each inspector has errors in the moving process, so that the inspector cannot move close according to 3-5 cm/s accurately, and errors also occur in the final distance measurement. The third is by the regulation measuring tape of selling on the market at present, it can eliminate the sheltering from of synthesizing the optometry appearance, nevertheless still need the inspector to remove the sighting target with the hand at the measuring in-process, 3-5 centimetres per second that can't be accurate according to the measurement requirement to the handheld process hand that adjusts the measuring tape removes and also can cause the error.
SUMMERY OF THE UTILITY MODEL
In view of the above, the present invention is directed to an improved tool for measuring near points, so as to solve the deficiencies of the prior art.
In order to achieve the purpose, the technical scheme of the utility model is realized as follows:
the utility model provides a measure improvement instrument of close point of set, includes nearly usefulness vision card, transport mechanism, equipment base, jaw support structure, equipment mount and remote controller, equipment mount bottom fixed connection to equipment base has seted up jaw support structure in the dead ahead, 2 spouts have been seted up to equipment base bottom, and jaw support structure bottom both ends slide card respectively connects to 2 spouts in, equipment mount top fixed connection to transport mechanism, and transport mechanism top still fixed connection is close to with the vision card, transport mechanism signal connection to remote controller, remote controller signal connection to controller.
Further, transport mechanism includes conveyer belt, driving motor, driving gear and driven gear, and the conveyer belt is the loop configuration, and the conveyer belt bottom is fixed to equipment base top through the equipment mount, and the inside both ends of conveyer belt respectively with driving gear, driven gear meshing transmission, the center pin fixed connection of driving gear to driving motor's output shaft, driving motor's driver signal connection to control remote controller.
Furthermore, the conveyer belt is pasted with scale marks.
Further, the jaw holds in the palm structure jaw and holds in the palm body, 2 jaws and hold in the palm mount and 2 jaw support adjusting sleeve, the jaw holds in the palm body bottom both ends and is equipped with a jaw support adjusting sleeve top respectively, and the equal threaded connection jaw of every jaw support adjusting sleeve bottom holds in the palm the mount, and every jaw holds in the palm mount bottom sliding card to in the spout.
Furthermore, every jaw holds in the palm adjustment sleeve pipe top all with jaw holds in the palm body bottom activity cup joint.
Furthermore, every jaw holds in the palm the mount bottom and all overlaps and establishes a fixed gasket, sets up the mounting hole that is used for being connected with the equipment base on the fixed gasket.
Compared with the prior art, the improved tool for measuring the set near point has the following advantages:
(1) the improved tool for measuring the set near point has the advantages of simple structure and reasonable design, and can reduce the influence of human factors in the measuring process to ensure that the measurement is more accurate; the method is characterized by comprising the following three aspects: firstly, the visual target is driven by the driving motor to move from far to near or from near to far according to 3-5 cm/second, so that errors caused by different speeds of manually moving the visual target are avoided, and the measurement is more accurate; secondly, the examinee can wear a full-correction frame mirror or a trial frame, the visual field range is wide, and the shielding caused by the lung head of the comprehensive optometry instrument is eliminated; and the third point is that scales are marked on the conveying belt, and the scales take 1 millimeter as a unit, so that the accurate distance can be conveniently measured.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the utility model and, together with the description, serve to explain the utility model and not to limit the utility model. In the drawings:
FIG. 1 is a schematic diagram of an overall structure of an improved tool for measuring a set of near points according to an embodiment of the present invention;
FIG. 2 is a schematic view of an improved tool transport mechanism and apparatus mounting bracket for measuring a set proximity point according to an embodiment of the present invention;
FIG. 3 is a schematic view of a jaw rest structure of an improved tool for measuring a set of near points according to an embodiment of the present invention;
fig. 4 is a schematic view of a conventional near vision card for an improved tool for measuring a set of near points according to an embodiment of the present invention.
Description of reference numerals:
1. a near vision card; 2. a transport mechanism; 21. a conveyor belt; 22. a drive motor; 23. scale lines; 3. an equipment base; 31. a chute; 4. a jaw support structure; 41. a jaw support fixing frame; 411. fixing a gasket; 42. a jaw support adjusting sleeve; 43. a jaw support body; 5. equipment mount.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable 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 meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
As shown in fig. 1 to 3, the improved tool for measuring the near points of the set comprises a near vision card 1, a transmission mechanism 2, an equipment base 3, a jaw support structure 4, an equipment fixing frame 5 and a remote controller, wherein the bottom of the equipment fixing frame 5 is fixedly connected to the equipment base 3, the jaw support structure 4 is arranged right ahead, 2 sliding grooves 31 are arranged at the bottom of the equipment base 3, two ends of the bottom of the jaw support structure 4 are respectively connected into the 2 sliding grooves 31 in a sliding manner, the top of the equipment fixing frame 5 is fixedly connected to the transmission mechanism 2, the top of the transmission mechanism 2 is also fixedly connected to the near vision card 1, and the near vision card 1 is a near vision chart with a general international visual standard of "E". The transmission mechanism 2 is connected with a remote controller through signals, and the remote controller is connected with a controller through signals. The improved tool for measuring the set near points has a simple structure and a reasonable design, and can reduce the influence of human factors in the measuring process to ensure that the measurement is more accurate; the method is characterized by comprising the following three aspects: firstly, the visual target is driven by the driving motor to move from far to near or from near to far according to 3-5 cm/second, so that errors caused by different speeds of manually moving the visual target are avoided, and the measurement is more accurate; secondly, the examinee can wear a full-correction frame mirror or a trial frame, the visual field range is wide, and the shielding caused by the lung head of the comprehensive optometry instrument is eliminated; and the third point is that scales are marked on the conveying belt, and the scales take 1 millimeter as a unit, so that the accurate distance can be conveniently measured.
The conveyor belt 21 is further adhered with scale marks 23, and the scale marks 23 can help the examiner to adjust the position of the near vision card 1 on the conveyor belt 21. In the embodiment, the conveyor belt 21 moves at a constant speed of 3-5 cm/s from front to back or from back to front. The conveyor belt 21 may have graduation marks 23 in units of 1 mm.
Jaw holds in palm structure 4 and includes that the jaw holds in the palm body 43, 2 jaws hold in the palm mount 41 and 2 jaws hold in the palm adjusting cannula 42, jaw holds in the palm body 43 bottom both ends and is equipped with a jaw respectively and holds in the palm adjusting cannula 42 top, and the equal threaded connection jaw in every jaw holds in the palm adjusting cannula 42 bottom holds in the palm mount 41, and every jaw holds in the palm mount 41 bottom sliding card to connecting in the spout 31. The top of each jaw support adjusting sleeve 42 is movably sleeved with the bottom of the jaw support body 43. Every fixed gasket 411 is all established to jaw support mount 41 bottom cover, offers the mounting hole that is used for being connected with equipment base 3 on the fixed gasket 411. The jaw holds in the palm structure 4 both can adjust the height that the jaw held in the palm body 43, can also adjust the front and back position that the jaw held in the palm body 43, easy operation moreover, economical and practical easily promotes. When the jaw support structure 4 is actually used, the jaw support structure can be matched with the existing forehead support to correct the head posture of a patient so as to facilitate the subsequent vision test, in the embodiment, the top of each jaw support adjusting sleeve 42 is movably sleeved with the bottom of the jaw support body 43, because the height of the jaw support adjusting sleeve 42 can be adjusted by rotating with the jaw support fixing frame 41 when the height is adjusted, the top of each jaw support adjusting sleeve 42 is movably sleeved with the bottom of the jaw support body 43, so that the jaw support adjusting sleeve 42 is ensured to rotate when the height is adjusted, and the jaw support body 43 does not rotate,
when the front and rear positions of the jaw support body 43 are actually adjusted, the inspector unscrews the screws locked in the mounting holes on the two sides of the sliding groove 31 and the fixed gasket 411, so as to adjust the position of the jaw support body 43 on the equipment base 3, and after the adjustment is finished, the screws are screwed into the mounting holes of the fixed gasket 411.
The controller and the remote controller are both in the prior art, the controller can be a single chip microcomputer or a PLC, a first switch, a second switch, a third switch and a fourth switch are arranged on the remote controller, the first switch is used for controlling the driving motor 22 to start working, the second switch is used for controlling the driving motor 22 to stop working, and the third switch is used for controlling the output shaft of the driving motor 22 to rotate clockwise; the fourth switch is used for controlling the output shaft of the driving motor 22 to rotate anticlockwise.
Example 1
The lower jaw of the examinee is fixed on the jaw support body 43, the jaw support body 43 is adjusted up and down by the jaw support adjusting sleeve 42, and the front and rear positions of the jaw support body 43 are adjusted by sliding the jaw support fixing frame 41 forward and backward on the slide groove 31, so that the front surfaces of the eyes or the glasses of the examinee are flush with the conveyor belt 21. The near vision card 1 is placed at 40 cm (a retractable measuring scale may be installed at the front end of the conveyor belt 21 so that the distance from the 0 scale at the front end of the conveyor belt to the anterior vertex of the cornea or the anterior surface of the lens of the subject can be determined by the measuring scale), and the optotype of the line on the best vision is selected as the examination optotype. Then the examiner starts the controller, turns on the first switch and the fourth switch on the remote controller, the output shaft of the driving motor 22 rotates anticlockwise to drive the conveyor belt 21 to move from back to front, the conveyor belt 21 moves forward at a constant speed of 3-5 cm/s under the pushing of the driving motor 22, when the examinee reports that the visual targets on the near vision card 1 on the conveyor belt 21 are divided into two or one of the examinees rotates outwards, the examiner presses the second switch to control the driving motor 22 to stop moving, the numerical value a and the numerical value b of the measuring scale at the front end of the conveyor belt at the moment are read, and the sum of the numerical value a and the numerical value b is a measured numerical value. If the glasses are not worn, the breaking point is the measured value plus 1.5 cm; if the glasses are worn, the breaking point is the measured value +2.7 cm; finally, the inspector turns on a third switch on the remote controller, an output shaft of the driving motor 22 rotates clockwise to drive the conveyor belt 21 to move from front to back, the conveyor belt 21 retreats at a constant speed of 3-5 cm/s under the pushing of the driving motor 22, when the inspector reports that the visual marks on the near vision card 1 on the conveyor belt 21 are combined into one, the inspector presses the second switch to control the driving motor 22 to stop moving, the numerical value c on the conveyor belt and the numerical value d of a measuring scale at the front end of the conveyor belt at the moment are read, and the sum of the numerical value c and the numerical value d is a measured numerical value; if the glasses are not worn, the recovery point is the measurement value plus 1.5 cm; if the glasses are worn, the recovery point is +2.7 cm.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (6)
1. An improved tool for measuring a set of near points, characterized by: including nearly with vision card (1), transport mechanism (2), equipment base (3), jaw support structure (4), equipment mount (5) and remote controller, equipment mount (5) bottom fixed connection to equipment base (3), jaw support structure (4) have been seted up in the dead ahead, 2 spout (31) have been seted up to equipment base (3) bottom, and jaw support structure (4) bottom both ends slide card respectively connect to in 2 spout (31), equipment mount (5) top fixed connection to transport mechanism (2), and transport mechanism (2) top is still fixed connection and is close with vision card (1), transport mechanism (2) signal connection is to the remote controller, and remote controller signal connection is to the controller.
2. The improved tool for measuring a set of near points of claim 1, wherein: transport mechanism (2) are including conveyer belt (21), driving motor (22), driving gear and driven gear, and conveyer belt (21) are the loop configuration, and fixed to equipment base (3) top through equipment mount (5) in conveyer belt (21) bottom, the inside both ends of conveyer belt (21) respectively with driving gear, driven gear meshing transmission, the center pin fixed connection of driving gear to the output shaft of driving motor (22), the driver signal connection of driving motor (22) to control remote controller.
3. The improved tool for measuring a set of near points of claim 2, wherein: the conveyor belt (21) is also adhered with scale marks (23).
4. The improved tool for measuring a set of near points of claim 1, wherein: jaw holds in palm structure (4) and holds in the palm mount (41) and 2 jaw support adjusting sleeve (42) including the jaw, the jaw holds in the palm body (43) bottom both ends and is equipped with a jaw respectively and holds in the palm adjusting sleeve (42) top, and every jaw holds in the palm adjusting sleeve (42) bottom equal threaded connection jaw and holds in the palm mount (41), and every jaw holds in the palm mount (41) bottom slide joint to in spout (31).
5. The improved tool for measuring a set of near points of claim 4, wherein: the top of each jaw support adjusting sleeve (42) is movably sleeved with the bottom of the jaw support body (43).
6. The improved tool for measuring a set of near points of claim 4, wherein: every jaw holds in palm mount (41) bottom all overlaps and establishes a fixed shim (411), offers the mounting hole that is used for being connected with equipment base (3) on fixed shim (411).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122905135.0U CN216962419U (en) | 2021-11-24 | 2021-11-24 | Improved tool for measuring collective near points |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122905135.0U CN216962419U (en) | 2021-11-24 | 2021-11-24 | Improved tool for measuring collective near points |
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| CN216962419U true CN216962419U (en) | 2022-07-15 |
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| CN202122905135.0U Active CN216962419U (en) | 2021-11-24 | 2021-11-24 | Improved tool for measuring collective near points |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115546214A (en) * | 2022-12-01 | 2022-12-30 | 广州视景医疗软件有限公司 | Set near point measurement method and device based on neural network |
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2021
- 2021-11-24 CN CN202122905135.0U patent/CN216962419U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115546214A (en) * | 2022-12-01 | 2022-12-30 | 广州视景医疗软件有限公司 | Set near point measurement method and device based on neural network |
| CN115546214B (en) * | 2022-12-01 | 2023-03-28 | 广州视景医疗软件有限公司 | Set near point measurement method and device based on neural network |
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