CN211023903U

CN211023903U - Trial frame with function is clapped in reversal

Info

Publication number: CN211023903U
Application number: CN201920942983.9U
Authority: CN
Inventors: 张丙寅; 王海英; 王立书
Original assignee: Tianjin Vocational Institute
Current assignee: Tianjin Vocational Institute
Priority date: 2019-06-21
Filing date: 2019-06-21
Publication date: 2020-07-17
Anticipated expiration: 2029-06-21

Abstract

The utility model relates to a trial frame with function is clapped in reversal, design scientific and reasonable, simple structure are worn this trial frame by the inspector during use, and the block mechanism's axostylus axostyle is flicked to the knob, and through the atress transmission, drive tilting mechanism makes the upset lens take place to overturn. And according to using the inspection or training needs to remove the lens, upset lens and fixed lens utilize two spherical lens coaxial combination, the superimposed principle of degree: namely, after the two spherical lenses with different signs are coaxially combined, a new spherical lens is formed, and the refractive power of the new spherical lens is the algebraic sum of the refractive powers of the two spherical lenses. Realize the combination of reversal shooting and trial frame, the person of joining in marriage the glasses can accomplish the inspection and the training of reversal shooting in the trial, and function inspection or training are looked in better realization, and detect convenient accuracy, and the in-service use effect is good.

Description

Trial frame with function is clapped in reversal

Technical Field

The utility model belongs to eye sight light detection field relates to the reversal and claps and try the mirror holder use technique, especially a try the mirror holder with reversal bat function.

Background

The trial frame is a universal instrument for changing the lens degree used by a myopia person in glasses fitting, is used for helping the myopia person to determine the lenses which accord with the degree of the myopia person, and can help the myopia person to correct the vision so as to maintain the work of daily reading and the like.

The reverse rotation shooting is also called double-sided mirror, butterfly mirror/shooting and adjustable training mirror/shooting, and is composed of two pairs of positive and negative lenses with the same degree and a holding handle. The inverse beat is used to change the accommodative stimulus, the positive mirror reduces the accommodative stimulus, the negative mirror increases the accommodative stimulus, and the aggregate stimulus remains unchanged, so that the change in accommodative aggregate is accompanied by a fusional vergence change of equal magnitude but opposite direction. The eye health-care instrument is a modern eye health-care instrument, exercises of eye functions can be performed at any time and any place, the potential of eyes can be fully adjusted, the reading speed is increased, the visual definition is improved, the eyes are more comfortable, the eye adjusting speed can be effectively improved, the adjusting range is increased, and accordingly the eye adjusting lag and the adjusting function insufficiency are improved.

In the prior art, when the traditional reverse-rotation bat is used for visual function examination or training of a myopic corrector, glasses or eyes close to an examiner or a subject are needed to ensure the validity of the examination or training result. Because the distance between the reverse-rotation shooting and human eyes can not be effectively fixed in the using process, the effective degree of the lens can be influenced, the inspection result and the training effect can be influenced due to the fact that the imaging size of the human eyes is inaccurate, the inspection or training result is not accurate easily, the use is still inconvenient, and the time-wasting effect is good.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art's weak point, provide one kind and combined the reversal and clap and try the mirror holder function, and convenient to use, inspection or the accurate examination mirror holder that has the reversal and clap function of training result.

The utility model provides a its technical problem take following technical scheme to realize:

the utility model provides a try-on frame with function is clapped in reversal, includes mirror holder body and lens, the lens setting is in the mirror holder body on, be provided with the nose on the mirror holder body and hold in the palm, the lens includes fixed lens and upset lens, still includes upset moving mechanism and elasticity block mechanism, during the draw-in groove of cartridge on the mirror holder body can be dismantled to fixed lens, the upset lens passes through upset moving mechanism and sets up on the mirror holder body, the upset lens can overturn the lock on fixed lens, be provided with between two fixed lenses elasticity block mechanism.

And the turnover moving mechanism comprises a rotating shaft, a shaft sleeve and an arc-shaped groove, the rotating shaft is coaxially detachably inserted in the mirror bracket body, the shaft sleeve is sleeved on the rotating shaft in a sliding manner, the arc-shaped groove and the shaft sleeve are integrally installed, and the turnover lens is detachably installed in the arc-shaped groove.

And, both ends of the rotating shaft are fixed by limit buckles.

And, be provided with between two fixed lenses the block mechanism is moved in the bullet, should move block mechanism and include base, extrusion piece, axostylus axostyle and spring, the pedestal mounting is on the nose of mirror holder holds in the palm, and this nose holds in the palm to separable buckle structure, is provided with the standing groove on the base, is provided with between two standing grooves the extrusion piece, vertically is provided with the axostylus axostyle on the extrusion piece, axostylus axostyle and the fast threaded connection of extrusion, the spring setting in the both sides of extrusion piece, the both ends of arc wall can place in the standing groove, the expansion end and the arc wall contact of spring.

The utility model has the advantages that:

the utility model has the advantages of being scientific and reasonable in design, simple structure is worn this trial frame by the inspector during use, and the axostylus axostyle of block mechanism is flicked to the knob, through the atress transmission, and drive tilting mechanism makes the upset lens take place to overturn. And according to using the inspection or training needs to remove the lens, upset lens and fixed lens utilize and utilize two spherical lens coaxial union, the superimposed principle of degree: after two different sign spherical lens coaxial unite promptly, form a new spherical lens, its refracting power is two spherical lens refracting power algebraic sums, realizes the combination of reversal bat and trial frame, and the person of lens arrangement can accomplish the inspection and the training of reversal bat in the trial, and function inspection or training are looked in better realization, and detect convenient accuracy, and the in-service use effect is good.

Drawings

Fig. 1 is a front view of the present invention;

fig. 2 is an enlarged partial sectional view of a portion a in fig. 1.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments, which are illustrative, not restrictive, and the scope of the invention should not be limited thereto.

The utility model provides a try-on frame with function is clapped in reversal, as shown in fig. 1, includes mirror holder body 1 and lens, the lens setting is in the mirror holder body on, be provided with nose on the mirror holder body and hold in the palm 11, lie in at its innovation point:

1. the lens includes fixed lens 7 and upset lens 5, still includes upset moving mechanism and elasticity block mechanism, and the cartridge can be dismantled in the draw-in groove on the mirror holder body to fixed lens, and the upset lens passes through upset moving mechanism and sets up on the mirror holder body, the upset lens can overturn the lock on fixed lens, be provided with between two fixed lenses elasticity block mechanism.

2. The turnover moving mechanism comprises a rotating shaft 4, a shaft sleeve 2 and an arc-shaped groove 6, the rotating shaft is coaxially detachably inserted in the mirror bracket body, two ends of the rotating shaft are fixed through a limiting buckle 3, the shaft sleeve is slidably sleeved on the rotating shaft, the arc-shaped groove and the shaft sleeve are integrally installed, and the turnover lens is detachably installed in the arc-shaped groove.

3. As shown in fig. 2, the elastic clamping mechanism is arranged between two fixed lenses, the elastic clamping mechanism includes a bottom 9, an extrusion block 12, a shaft rod 10 and a spring 13, the base is mounted on a nose support of the mirror bracket, the nose support is of a separable buckle structure, a placement groove 8 is arranged on the base, the extrusion block is arranged between the two placement grooves, the shaft rod is longitudinally arranged on the extrusion block and is in threaded connection with the extrusion block, the spring is arranged on two sides of the extrusion block, two ends of the arc-shaped groove can be placed in the placement groove, and a movable end of the spring is in contact with the arc-shaped groove.

The utility model discloses a use method:

when the trial frame is worn by an inspector head, the knob springs the shaft rod of the clamping mechanism, the shaft rod is in threaded connection with the extrusion block, longitudinal pressure is applied to the extrusion block, the extrusion block is stressed and extruded to the springs on two sides, the springs generate elastic force to pop out the arc-shaped grooves on two sides out of the placing grooves, and the arc-shaped grooves are upwards overturned under the elastic force action of the springs in the shaft sleeve, so that the overturning of the overturning lenses is completed. Meanwhile, the two fixed lenses can be separated by utilizing the buckle structure of the nose support between the fixed lenses, and the two fixed lenses are moved and adjusted according to the measurement requirements.

The turning lens and the fixed lens utilize the principles of coaxial combination and power superposition of two spherical lens: namely, after the two spherical lenses with different signs are coaxially combined, a new spherical lens is formed, and the refractive power of the new spherical lens is the algebraic sum of the refractive powers of the two spherical lenses.

The fixed lens is set to be a positive lens (the fixed lens can be +1.00D, +1.50D, +2.00D … … according to the specification), the fixed lens can be overturned and overlapped to be a negative lens, and the overturned lens is the negative lens and has the refractive power 2 times of that of the positive lens (corresponding to-2.00D, -3.00D, -4.00D … …).

The combined function of reverse shooting and trial frame is realized by the structure and the principle, the visual function inspection or training and the function of lens fitting are better realized, the innovative overturning moving mechanism and the elastic clamping mechanism are utilized to realize accurate measurement, the use is convenient, the adjustment can be flexibly realized, and the measurement result is accurate.

Although the embodiments of the present invention and the accompanying drawings are disclosed for illustrative purposes, those skilled in the art will appreciate that: various substitutions, changes and modifications are possible without departing from the spirit and scope of the present invention and the appended claims, and therefore, the scope of the present invention is not limited to the disclosure of the embodiments and the accompanying drawings.

Claims

1. The utility model provides a try on mirror frame with function is clapped in reversal, includes mirror holder body and lens, the lens setting is in the mirror holder body on, be provided with the nose on the mirror holder body and hold in the palm its characterized in that: the lens includes fixed lens and upset lens, still includes upset moving mechanism and elasticity block mechanism, and fixed lens can dismantle the cartridge in the draw-in groove on the mirror holder body, and the upset lens passes through upset moving mechanism and sets up on the mirror holder body, the upset lens lock that can overturn on fixed lens, be provided with between two fixed lenses elasticity block mechanism.

2. The trial frame with the reverse shooting function according to claim 1, wherein: the turnover moving mechanism comprises a rotating shaft, a shaft sleeve and an arc-shaped groove, the rotating shaft is coaxially detachably inserted in the mirror bracket body, the shaft sleeve is slidably sleeved on the rotating shaft, the arc-shaped groove and the shaft sleeve are integrally installed, and the turnover lens is detachably installed in the arc-shaped groove.

3. The trial frame with the reverse photographing function according to claim 2, wherein: and two ends of the rotating shaft are fixed through limit buckles.

4. The trial frame with the reverse shooting function according to claim 1, wherein: the elastic clamping mechanism is arranged between the two fixed lenses and comprises a base, an extrusion block, a shaft rod and a spring, the base is installed on a nose support of the mirror bracket, the nose support is of a separable buckle structure, a placing groove is formed in the base, the extrusion block is arranged between the two placing grooves, the shaft rod is longitudinally arranged on the extrusion block and is in threaded connection with the extrusion block, the spring is arranged on two sides of the extrusion block, two ends of the arc-shaped groove can be placed in the placing groove, and the movable end of the spring is in contact with the arc-shaped groove.