Pupil distance measuring device

Abstract

The utility model relates to the technical field of measuring equipment, in particular to an interpupillary distance measuring device, which comprises a measuring worktable, two groups of lifting cylinders are symmetrically arranged on two sides of the top of the measuring worktable, and a lower jaw bracket is further mounted on the top surface of the measuring worktable. Through the arrangement of the lifting air cylinder, the eyeshade can be adjusted in a lifting mode according to the head heights of different users, so that the eyeshade is suitable for people of different heights, and the universality and convenience of the device are improved; the lifting air cylinder can horizontally move on the top face of the measuring workbench, the transverse position of the eyeshade is adjusted according to the head position of a user, the measuring accuracy is improved, the lower jaw bracket is arranged, the lower jaw of the user can be supported in the measuring process, it is ensured that the head of the user is stable, and measuring errors caused by shaking of the head are prevented; through the combination of the cross rod and the eyeshade, the sight lines of two eyes are aligned with the center of the eyeshade, so that the accuracy of interpupillary distance measurement is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of measuring equipment, in particular to a pupil distance measuring device. Background Art

[0002] Pupillary distance measurement is a device used to measure the distance between the two pupils of the human eye. Pupillary distance measurement is a necessary process when fitting glasses or testing vision. If there is an error in the pupil distance measurement, it will lead to errors in the glasses, which will affect the person wearing the glasses. Glasses generally protect vision. If the pupil distance is not measured correctly, it may even deepen the damage to the eyes. The existing rapid pupil distance measurement device has a lot of shortcomings. For example, the existing rapid pupil distance measurement device has a complex structure and a high cost, which cannot meet people's needs. Since the existing rapid pupil distance measurement has serious errors in measurement, it cannot maintain a stable measurement during the measurement process, and it does not have an adjustment function, which reduces the practicality of the rapid pupil distance measurement device. Utility Model Content

[0003] The utility model aims to provide a pupil distance measuring device to solve the problems in the background art that the pupil distance rapid measurement has serious measurement errors, cannot maintain stable measurement during the measurement process, and has no adjustment function.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A pupil distance measuring device comprises a measuring workbench, two sets of lifting cylinders are symmetrically arranged on both sides of the top of the measuring workbench, and a jaw bracket is also installed on the top surface of the measuring workbench;

[0006] A movable slide groove is provided on the top surface of the measuring workbench;

[0007] A movable slide seat that is adapted to the cross-sectional size of the movable slide groove and slides with interference fit is installed at the bottom of the lifting cylinder. A cross bar is installed on the outer wall of the piston rod of each group of the lifting cylinders. The two groups of cross bars are located on a straight line at the same horizontal height. An eye mask is installed at one end of the cross bar away from the piston rod. An identification base plate that slides with the surface of the measuring workbench is vertically connected to the bottom outer wall of the lifting cylinder, and the center of the end of the identification base plate and the center of the eye mask are located on the same vertical plane.

[0008] Preferably, measurement scales are symmetrically arranged on both sides of the top surface of the measuring workbench.

[0009] Preferably, the center of the measurement scale is the 0 scale line, and it increases towards both sides.

[0010] Preferably, the cross-sections of the movable slide groove and the movable slide seat are both inverted T-shape.

[0011] Preferably, the top surface of the mandibular support is provided with an arc-shaped groove adapted to the mandibular of a human body, and a soft cushion is installed on the surface of the arc-shaped groove.

[0012] Preferably, the soft cushion is made of medical-grade latex or silicone material and has a thickness of 2-5 mm.

[0013] Preferably, the bottom of the mandible support is fitted with an interference fit with the top surface of the measuring workbench.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. In the present pupil distance measuring device, the eye mask can be raised and lowered according to the head height of different users through the setting of the lifting cylinder, so as to adapt to people of different heights, thereby increasing the versatility and convenience of the device; the lifting cylinder can be moved horizontally on the top surface of the measuring workbench through the cooperation of the moving slide and the moving slide seat, so that the lateral position of the eye mask can be adjusted according to the head position of the user, further improving the accuracy of the measurement; the setting of the chin support can support the user's chin during measurement, ensure the stability of the user's head, and prevent measurement errors caused by head shaking; the combination of the crossbar and the eye mask can fix the user's binocular sight lines, so that the binocular sight lines are aligned with the center of the eye mask, thereby ensuring the accuracy of the pupil distance measurement.

[0016] 2. In this pupil distance measuring device, measurement scales are symmetrically arranged on both sides of the top surface of the measuring workbench. The center of the measurement scale is the 0 scale line, and it increases towards both sides in sequence. The pupil distance of the person being measured can be obtained by reading the readings on the marking bottom plates on both sides and adding the two data.

[0017] 3. In the pupil distance measuring device, the top surface of the mandibular support is provided with an arc groove adapted to the human mandible, and a soft cushion is installed on the surface of the arc groove, which not only increases the comfort of the user, but also has certain antibacterial and anti-allergic functions. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, further detailed explanation is provided, but the accompanying drawings do not constitute a limitation to the present invention.

[0019] Figure 1 It is a structural schematic diagram of the utility model;

[0020] Figure 2 It is a schematic diagram of the top view structure of the utility model;

[0021] Figure 3 This is a schematic diagram of the main structure of the lifting cylinder of the utility model.

[0022] The meaning of the symbols in the figure:

[0023] 10. Measuring workbench; 11. Moving slide; 12. Measuring scale;

[0024] 20. Lifting cylinder; 21. Piston rod; 22. Crossbar; 23. Eye mask; 24. Identification base plate; 25. Moving slide;

[0025] 30. Chin support; 31. Soft cushion. DETAILED DESCRIPTION

[0026] The following will combine the embodiments of the utility model and the drawings of the specification to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] In the description of the present invention, it should be understood that the terms "center", "vertical", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0028] A pupil distance measuring device, such as Figure 1-Figure 3As shown, it includes a measuring workbench 10, two groups of lifting cylinders 20 are symmetrically arranged on both sides of the top of the measuring workbench 10, and a lower jaw bracket 30 is also installed on the top surface of the measuring workbench 10; a moving slide 11 is opened on the top surface of the measuring workbench 10; a moving slide seat 25 that is adapted to the cross-sectional size of the moving slide 11 and slides with interference fit is installed at the bottom of the lifting cylinder 20, a cross bar 22 is installed on the outer wall of the piston rod 21 of each group of lifting cylinders 20, and the two groups of cross bars 22 are located on a straight line at the same horizontal height, and an eye mask 23 is installed on one end of the cross bar 22 away from the piston rod 21, and an identification bottom plate 24 that slides with the surface of the measuring workbench 10 is vertically connected to the outer wall of the bottom of the lifting cylinder 20, and the end center of the identification bottom plate 24 and the center of the eye mask 23 are located on the same vertical plane. Through the arrangement of the lifting cylinder 20, the eye mask 23 can be raised and lowered according to the head height of different users, thereby adapting to people of different heights. The device has a plurality of groups, which increases the versatility and convenience of the device. The lifting cylinder 20 can move horizontally on the top surface of the measuring workbench 10 through the cooperation of the movable slide 11 and the movable slide seat 25. In this way, the lateral position of the eye mask 23 can be adjusted according to the user's head position, further improving the measurement accuracy. The setting of the chin support 30 can support the user's chin during measurement, ensure the stability of the user's head, and prevent measurement errors caused by head shaking. The combination of the cross bar 22 and the eye mask 23 can fix the user's binocular sight lines, so that the binocular sight lines are aligned with the center of the eye mask 23, thereby ensuring the accuracy of the pupil distance measurement. The setting of the marking base plate 24 not only enhances the connection stability between the lifting cylinder 20 and the measuring workbench 10, but also the center of its end and the center of the eye mask 23 are located on the same vertical plane, providing the user with a clear sight alignment mark, further simplifying the measurement process.

[0029] Furthermore, measurement scales 12 are symmetrically arranged on both sides of the top surface of the measuring workbench 10. The center of the measurement scale 12 is the 0 scale line, and it increases toward both sides successively. The readings on the marking base plates 24 on both sides can be read and the two data can be added together to obtain the pupil distance of the measured person.

[0030] It is worth noting that the cross-sections of the movable slide groove 11 and the movable slide seat 25 are both inverted T-shaped, which enhances the stability of the movable slide seat 25 in the movable slide groove 11, prevents measurement errors caused by shaking during use, and further improves the accuracy of measurement.

[0031] Specifically, the top surface of the mandibular support 30 is provided with an arc-shaped groove adapted to the human mandible, and a soft pad 31 is installed on the surface of the arc-shaped groove, which not only increases the comfort of the user, but also has certain antibacterial and anti-allergic functions. The soft pad 31 is made of medical-grade latex or silicone material and has a thickness of 2-5mm.

[0032] In addition, the bottom of the mandibular support 30 and the top surface of the measuring workbench 10 are in interference fit, which is convenient for installation or disassembly. The mandibular support 30 can be disassembled, cleaned or disinfected regularly.

[0033] The working principle of the pupil distance measuring device is as follows: when in use, the person being measured sits in front of the measuring device, places the head on the chin support 30, ensures that the head is stable and motionless, starts the lifting cylinder 20, and through the extension and retraction of the piston rod 21, the eye mask 23 is lifted and lowered to a position suitable for the eye height of the person being measured, the bottom of the lifting cylinder 20 is pushed, and pushed or pulled along the moving slide 11 to move the center of the eye mask 23 to the center of the pupil of the person being measured, and the distance between the ends of the two sets of marking base plates 24 is measured, which is the pupil distance.

[0034] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A pupil distance measuring device, comprising a measuring workbench (10), characterized in that: Two groups of lifting cylinders (20) are symmetrically arranged on both sides of the top of the measuring workbench (10), and a lower jaw bracket (30) is also installed on the top surface of the measuring workbench (10); The top surface of the measuring workbench (10) is provided with a movable slide groove (11); A movable slide seat (25) which is adapted to the cross-sectional size of the movable slide groove (11) and slides in an interference fit is installed at the bottom of the lifting cylinder (20); a cross bar (22) is installed on the outer wall of the piston rod (21) of each group of the lifting cylinders (20); two groups of the cross bars (22) are located on a straight line at the same horizontal height; an eye mask (23) is installed on one end of the cross bar (22) away from the piston rod (21); an identification base plate (24) which is slidably matched with the surface of the measuring workbench (10) is vertically connected to the outer wall of the bottom of the lifting cylinder (20); the center of the end of the identification base plate (24) and the center of the eye mask (23) are located on the same vertical plane.

2. The pupil distance measuring device according to claim 1, characterized in that: Measuring scales (12) are symmetrically arranged on both sides of the top surface of the measuring workbench (10).

3. The pupil distance measuring device according to claim 2, characterized in that: The center of the measuring scale (12) is the 0 scale line, and the scale increases towards both sides.

4. The pupil distance measuring device according to claim 1, characterized in that: The cross-sections of the movable slide groove (11) and the movable slide seat (25) are both inverted T-shaped.

5. The pupil distance measuring device according to claim 1, characterized in that: The top surface of the lower jaw support (30) is provided with an arc-shaped groove adapted to the lower jaw of a human body, and a soft pad (31) is installed on the surface of the arc-shaped groove.

6. The pupil distance measuring device according to claim 5, characterized in that: The soft pad (31) is made of medical-grade latex or silicone material and has a thickness of 2-5 mm.

7. The pupil distance measuring device according to claim 1, characterized in that: The bottom of the lower jaw support (30) and the top surface of the measuring workbench (10) are interference-fitted.

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