CN219016725U

CN219016725U - Myopia prevention reading instrument with double-linkage support arm mechanism

Info

Publication number: CN219016725U
Application number: CN202223133782.5U
Authority: CN
Inventors: 骆美霞; 匡进
Original assignee: Shenzhen Yanxingguang Technology Co ltd
Current assignee: Shenzhen Yanxingguang Technology Co ltd
Priority date: 2022-11-24
Filing date: 2022-11-24
Publication date: 2023-05-12
Anticipated expiration: 2032-11-24

Abstract

The utility model relates to an anti-myopia reading instrument with a double-linkage support arm mechanism, which comprises a reflector module for reflecting an object image of a reading material on a desktop into human eyes and a support arm mechanism for installing the reflector module; the support arm mechanism comprises a first support arm and a second support arm which are arranged side by side, wherein the two ends of the first support arm are respectively and rotatably connected with a connecting seat, and the two ends of the second support arm are respectively and rotatably connected with the two connecting seats; the support arm mechanism also comprises a gas spring which is rotationally connected with the two connecting seats, and the gas spring is not parallel to the first support arm or the second support arm; the reflector module can be dismantled and set up on one of them connecting seat, and this reader still includes the support base of dismantling the connection with another connecting seat, and when reading and using, can guarantee the follow-up nature of whole support arm mechanism through the gas spring, conveniently stay the reflector module in the position department that wants to stop, effectively avoided traditional support arm to lead to the not smooth shortcoming of adjustment because of the turning point rigidity is too big, also improved student's reading greatly and experienced.

Description

Myopia prevention reading instrument with double-linkage support arm mechanism

Technical Field

The utility model relates to the technical field of support frames, in particular to an anti-myopia reading instrument with a double-linkage support arm mechanism.

Background

In recent years, the myopia population of China is more and more, especially the myopia phenomenon of teenagers is common, and the diseases of the spine and the cervical vertebra caused by long-time low-head reading are more and more. The current myopia prevention method forces or reminds a reader to straighten the body posture through mechanical structure design or electronic equipment, so that eyes and books and the like keep a distance as far as possible, and the effects of preventing myopia and preventing cervical vertebra diseases are achieved.

At present, the position of the reflecting mirror at the free end of the supporting arm needs to be adjusted in the using process of the myopia-preventing reading instrument on the market, the state of adjustment is kept after the reflecting mirror is adjusted to a proper position, however, the supporting arms of some instruments are in a mode of connecting a plurality of single supporting arms through damping rotating shafts to keep the state, as disclosed in the prior application CN216210262U, CN216202723U of the applicant, in the practical process, the rigidity of the supporting structure joint formed by the supporting arms is relatively high, after the position of the reflecting mirror is adjusted in place, the reflecting mirror can rebound once the hand reflecting mirror is loosened, the position of the reflecting mirror is finally positioned beside the user adjusting position, a certain error always exists, excessive movement is needed in the process of moving the reflecting mirror to offset the rebound if the reflecting mirror is adjusted in place, and the problem can cause poor user experience.

Therefore, we specially propose an anti-myopia reading instrument with a double-linkage support arm mechanism to solve the problem that the children learn to have a bad sitting posture for a long time, which causes the bending and humpback, myopia and inconvenient adjustment of the reflecting position.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art and provide the myopia-preventing reading instrument with the double-linkage supporting arm mechanism, which can well solve the problems.

The technical scheme adopted by the utility model for solving the technical problems is as follows:

the myopia prevention reader comprises a reflector module for reflecting an object image of a reading object on a desktop into human eyes and a support arm mechanism for installing the reflector module; the support arm mechanism comprises a first support arm and a second support arm which are arranged side by side, wherein the two ends of the first support arm are respectively and rotatably connected with a connecting seat, and the two ends of the second support arm are respectively and rotatably connected with the two connecting seats; the support arm mechanism further comprises a gas spring rotationally connected with the two connecting seats, and the gas spring is not parallel to the first support arm or the second support arm; the reflector module is detachably arranged on one connecting seat, and the reader further comprises a support base detachably connected with the other connecting seat.

The utility model relates to an anti-myopia reader with a double-linkage support arm mechanism, wherein the reflector module comprises an objective lens for reflecting an object image of a read material and an eyepiece for reflecting a virtual image of the objective lens into human eyes; the eyepiece can be detachably arranged on one connecting seat far away from the supporting base, and the objective lens is detachably connected with the eyepiece through a connecting frame.

The utility model relates to an anti-myopia reading instrument with a double-linkage support arm mechanism, wherein two connecting frames are arranged at the left end and the right end of an objective lens respectively, and the objective lens is longitudinally and rotatably connected with the connecting frames.

The myopia prevention reading instrument with the double-linkage support arm mechanism is characterized in that the objective lens and the ocular lens are arranged in parallel front and back, and when the reading instrument is assembled in place, the ocular lens is higher than the objective lens.

The utility model discloses an anti-myopia reading instrument with a double-linkage support arm mechanism, wherein a parallelogram structure is formed by a first support arm, a second support arm and two connecting seats, the first support arm and the second support arm are both in rotary connection with the connecting seats through rotary shafts, two ends of a gas spring face to two opposite angles of the parallelogram respectively, and the gas spring is in rotary connection with the connecting seats through the rotary shafts adjacent to the gas spring.

The utility model relates to an anti-myopia reading instrument with a double-linkage support arm mechanism, wherein a movable groove for the gas spring to extend into is formed in a connecting seat, a rotating shaft penetrates through the movable groove, and the gas spring extends into the movable groove and is hinged with the rotating shaft.

The utility model discloses an anti-myopia reading instrument with a double-linkage support arm mechanism, wherein grooves are formed in the side walls of a first support arm and a second support arm, which face each other, the grooves penetrate through the two ends of the first support arm and the second support arm respectively, and when the anti-myopia reading instrument is assembled in place, the connecting seat and the gas spring are located in the grooves.

The myopia prevention reader with the double linkage support arm mechanism provided by the utility model, wherein the width of the groove on the first support arm is larger than that of the groove on the second support arm, and when the myopia prevention reader is assembled in place, part of the second support arm is positioned in the groove on the first support arm.

The utility model discloses an anti-myopia reading instrument with a double-linkage support arm mechanism, wherein a fixed seat is arranged on the back surface of an ocular, a connecting rod is connected to the fixed seat in a ball mode, a positioning groove for fixing the connecting rod is arranged on the connecting seat close to the ocular, a jack matched with a first anti-drop pin is arranged on the inner side wall of the positioning groove in a penetrating mode, and a stop position is arranged on the connecting rod corresponding to the first anti-drop pin.

The utility model relates to an anti-myopia reading instrument with a double-linkage supporting arm mechanism, wherein the supporting base comprises a lifting rod, a chassis arranged at the lower end of the lifting rod and a connecting arm detachably arranged at the upper end of the lifting rod; the connecting arm comprises a connecting body in an inclined state, and two mounting sections which are respectively positioned at the upper end and the lower end of the connecting body, wherein the two mounting sections are in a vertical state, the lifting rod is connected to the mounting section adjacent to the lifting rod, and the connecting seat adjacent to the connecting arm is connected to the mounting section at the upper end of the connecting arm.

The utility model has the beneficial effects that: the first support arm, the second support arm and the two connecting seats form a double-link structure, the whole structure can be more stable and firm through the design, the follow-up property of the first support arm and the second support arm can be ensured through the gas spring, the situation that the position of the reflector module is rebounded due to unsmooth adjustment caused by large rigidity of the turning point of the traditional support arm is effectively avoided, the use experience of a user is greatly improved, the visual distance between the user and a book can be prolonged through the matching of the objective lens and the ocular lens, the eyes are kept at a proper reading position, and the situations of bending over, humpback and myopia of the user caused by too short visual distance are avoided.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the present utility model will be further described with reference to the accompanying drawings and embodiments, in which the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained by those skilled in the art without inventive effort:

FIG. 1 is an assembly block diagram of an anti-myopia reading apparatus with a dual linkage support arm mechanism of the present utility model.

FIG. 2 is a block diagram of the connecting rod of the myopia preventing reader with the dual linkage support arm mechanism of the present utility model.

Fig. 3 is a bottom view of the exploded structure of fig. 1.

FIG. 4 is an exploded view of a first arm and a second arm of the myopia preventing reader with a dual linkage support arm mechanism of the present utility model.

FIG. 5 is a block diagram of the positioning slot of the myopia preventing reader with the dual linkage support arm mechanism of the present utility model.

Fig. 6 is a cross-sectional view of an anti-myopia reader with a dual linkage support arm mechanism according to the present utility model.

Fig. 7 is an enlarged view at a in fig. 6.

Fig. 8 is an enlarged view of a partial structure of fig. 6.

Fig. 9 is a schematic view of the optical path principle of the myopia prevention reader with the double linkage support arm mechanism of the present utility model.

Fig. 10 is a schematic structural view of the support base of the myopia prevention reading apparatus with the double-linkage support arm mechanism adopting a clamping structure to realize fixation.

Detailed Description

The terms "first," "second," "third," and "fourth" and the like in the description and in the claims and drawings are used for distinguishing between different objects and not necessarily for describing a particular sequential or chronological order. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those listed steps or elements but may include other steps or elements not listed or inherent to such process, method, article, or apparatus.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the utility model. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.

"plurality" means two or more. "and/or", describes an association relationship of an association object, and indicates that there may be three relationships, for example, a and/or B, and may indicate: a exists alone, A and B exist together, and B exists alone. The character "/" generally indicates that the context-dependent object is an "or" relationship.

Moreover, the terms "upper, lower, left, right, upper end, lower end, longitudinal" and the like that represent the orientation are all referred to with reference to the attitude position of the apparatus or device described in this scheme when in normal use.

In order to make the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the following description will be made in detail with reference to the technical solutions in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by a person skilled in the art without any inventive effort, are intended to be within the scope of the present utility model, based on the embodiments of the present utility model.

As shown in fig. 1-9, the myopia preventing reader with the dual-linkage support arm mechanism according to the preferred embodiment of the utility model comprises a reflector module 1 for reflecting an object image of a reading object 100 on a desktop into human eyes, and a support arm mechanism 2 for installing the reflector module 1; the support arm mechanism 2 comprises a first support arm 201 and a second support arm 202 which are arranged side by side up and down, specifically, when in use, the first support arm 201 and the second support arm 202 are in a supporting inclined state, two ends of the first support arm 201 are rotationally connected with the connecting seats 3, two ends of the second support arm 202 are rotationally connected with the two connecting seats 3 respectively, and specifically, the first support arm 201 and the second support arm 202 are longitudinally rotationally connected with the connecting seats 3; the support arm mechanism 2 further comprises a gas spring 4 rotationally connected with the two connecting seats 3, wherein the gas spring 4 is not parallel to the first support arm 201 or the second support arm 202, and specifically, the supporting force provided by the gas spring 4 can be adjusted within the range of 120N-150N; further, the mirror module 1 can be detachably arranged on the connecting seat 3 located at the upper end of the first support arm 201, the reader further comprises a supporting base 5 detachably connected with the other connecting seat 3 located at the lower end of the first support arm 201, and the supporting base is used for supporting the mirror module 1 on the ground or a tabletop, in practice, the supporting base can be a fixed implementation mode adopting a sucker, and can also be a clamping type implementation mode, as shown in fig. 10, and is used for clamping on the tabletop, a column body or the tabletop edge, and particularly adopts a common tabletop clamp structure, and can also be a placement type directly placed on the ground/tabletop, namely, the preferred implementation mode of the scheme, in the use process, a person moves the mirror module 1 by hands to enable the first support arm 2011 and the second support arm 2022 to synchronously act, further keeps the position of the first support arm 2011 and the second support arm 2022 fixed through a gas spring 4, further enables the whole structure to be more stable and firm, and the gas spring 4 can ensure that the first support arm 2011 and the second support arm 2022 stay at the position wanted by a user, and the disadvantage that the user experiences the large-sized support arm is avoided due to the fact that the user has high-speed and high-stability of the mirror module is used, and the user has the effect of the large-speed of the deflection of the mirror module.

Preferably, the mirror module 1 includes an objective lens 101 that reflects an object image of the reading material, and an eyepiece 102 that reflects a virtual image of the objective lens 101 into the human eye; the eyepiece 102 can be dismantled and set up on keeping away from the connecting seat 3 of supporting base 5, objective 101 passes through link 6 and eyepiece 102 can dismantle the connection, wherein, link 6 is rectangular and is equipped with two and locates the left and right sides both ends of objective 101 respectively, objective 101 and link 6 longitudinal rotation are connected, parallel arrangement around objective 101 and eyepiece 102, the corresponding link has jack-in groove 7 on the eyepiece, jack-in groove 7 slope setting and its front end are higher than the rear end, in order to guarantee that objective and eyepiece are connected stably, when assembling in place, eyepiece 102 is higher than objective 101, in order to supply the user to watch eyepiece 102 from the front upper side of objective 101, in-process objective 101 plays the books that prevent that the user from directly watching on the desktop, can lengthen the stadia of user and books through the cooperation of objective 101 and eyepiece 102, and then keep the eyes in a suitable reading position, the condition that the user caused the humpback and myopia because of the stadia is too short has been avoided.

Preferably, the first support arm 201, the second support arm 202 and the two connecting seats 3 form a parallelogram structure, specifically, the first support arm 201, the second support arm 202 and the two connecting seats 3 form four vertexes of the parallelogram, the first support arm 201 and the second support arm 202 are rotationally connected with the connecting seats 3 through the rotating shaft 8, the rotating shaft 8 forms the above-mentioned turning points, two ends of the air spring 4 face two opposite angles of the parallelogram respectively, so as to ensure that the adjustable stroke of the air spring 4 is maximum, two ends of the air spring 4 are rotationally connected with the two connecting seats 3 respectively through two rotating shafts 8 positioned on two opposite angles of the parallelogram, and when in use, the parallelogram structure formed by the first support arm 201 and the second support arm 202 and the two connecting seats 3 can ensure the longitudinal flexibility.

Preferably, the connecting seat 3 is provided with a movable groove 9 corresponding to the gas spring 4, the movable groove 9 is penetrated by the rotating shaft 8, the gas spring 4 stretches into the movable groove 9 and is hinged with the rotating shaft 8, the gas spring 4 is connected through the rotating shaft 8 on the connecting seat 3, the additional arrangement of the rotating shaft on the gas spring 4 can be avoided, the connecting structure is simplified, wherein the movable groove 9 is longitudinally arranged, so that the movable space is provided for the up-and-down swinging of the two ends of the gas spring 4 when the first support arm 201 and the second support arm 202 swing up and down.

Preferably, the side walls of the first support arm 201 and the second support arm 202 facing each other are respectively provided with a groove 10, the two grooves 10 respectively penetrate through two ends of the first support arm 201 and the second support arm 202, two ends of the bottom surface of the two grooves 10 are respectively provided with an opening 11 penetrating through the first support arm 201 and the second support arm 202, the opening 11 is used for avoiding the connecting seat 3 when the first support arm 201 and the second support arm 202 swing up and down, the swing amplitude of the first support arm 201 and the second support arm 202 is increased, the installation compactness of the whole structure is improved, when the assembly is carried out, the connecting seat 3 and the gas spring 4 are both positioned in the grooves 10, specifically, the width of the groove 10 on the first support arm 201 is larger than the width of the groove 10 on the second support arm 202, and when the assembly is carried out, the part of the second support arm 202 is positioned in the groove 10 on the first support arm 201, so that after the assembly, the part of the second support arm 202 and the gas spring 4 are covered and hidden, and the whole appearance is ensured to be neat.

Preferably, the back of eyepiece 102 is equipped with fixing base 12, the pivoted ball on fixing base 12 has connecting rod 13, be equipped with fixed connecting rod 13's constant head tank 14 on the connecting seat 3 that is close with eyepiece 102, wear to be equipped with jack 15 on the inside wall of constant head tank 14, be equipped with first anticreep round pin 16 on this connecting seat 3, be equipped with the backstop position on connecting rod 13 corresponding to first anticreep round pin 16, the backstop position is for supplying first anticreep round pin 16 male through-hole 17, during the assembly, connecting rod 13 inserts in the constant head tank 14, after connecting rod 13 inserts constant head tank 14, insert jack 15 and insert in this through-hole 17 with first anticreep round pin 16, and then alright fix first base on connecting seat 3, during the dismantlement, only need pull out first anticreep round pin 16 fast and can realize the separation.

Preferably, the supporting base 5 includes a lifting rod 51, a chassis 52 provided at a lower end of the lifting rod 51 to stabilize a center of gravity, and a connection arm 53 detachably provided at an upper end of the lifting rod 51; the connecting arm 53 includes a connecting body 531 in an inclined state, and two mounting sections 532 respectively located at the upper end and the lower end of the connecting body 531, the two mounting sections 532 are in a vertical state, the end faces of the two mounting sections 532 are horizontal planes, the lifting rod 51 is detachably connected to the end face of the mounting section 532 at the lower end of the connecting body 531 through the first connecting shaft 18, specifically, the lower end of the first connecting shaft 18 is coaxially inserted into the lifting rod 51, the upper end is in threaded connection with the connecting body 531, further, the connecting seat 3 adjacent to the connecting arm 53 is detachably connected to the end face of the mounting section 532 at the upper end of the connecting body 531 through the second connecting shaft 19, specifically, the lower end of the second connecting shaft 19 is in threaded connection with the mounting section 532 located at the upper end of the connecting body 531, the upper end is inserted into the lower surface of the connecting seat 3 adjacent to the second connecting shaft, further, in order to ensure the stability of connection, the second anti-disengaging pin 20 radially inserted into the first connecting shaft 18 is further provided on the side wall on the lifting rod 51, and the third anti-disengaging pin 21 inserted into the second connecting shaft 19 is transversely provided on the connecting seat 3 connected to the second connecting shaft 19.

It will be understood that modifications and variations will be apparent to those skilled in the art from the foregoing description, and it is intended that all such modifications and variations be included within the scope of the following claims.

Claims

1. An anti-myopia reader with a double-linkage support arm mechanism is characterized by comprising a reflector module for reflecting an object image of a reading object on a desktop into human eyes and a support arm mechanism for installing the reflector module; the support arm mechanism comprises a first support arm and a second support arm which are arranged side by side, wherein the two ends of the first support arm are respectively and rotatably connected with a connecting seat, and the two ends of the second support arm are respectively and rotatably connected with the two connecting seats; the support arm mechanism further comprises a gas spring rotationally connected with the two connecting seats, and the gas spring is not parallel to the first support arm or the second support arm; the reflector module is detachably arranged on one connecting seat, and the reader further comprises a support base detachably connected with the other connecting seat.

2. The myopia prevention reader with dual linkage support arm mechanism according to claim 1, wherein the mirror module comprises an objective lens that reflects an object image of the reading material and an eyepiece that reflects a virtual image of the objective lens into the human eye; the eyepiece can be detachably arranged on one connecting seat far away from the supporting base, and the objective lens is detachably connected with the eyepiece through a connecting frame.

3. The myopia prevention reading apparatus with double linkage support arm mechanisms according to claim 2, wherein the two connecting frames are respectively arranged at the left and right ends of the objective lens, and the objective lens is longitudinally and rotatably connected with the connecting frames.

4. A myopia prevention reader according to any of claims 2-3, wherein the objective lens is positioned in front of and behind the eyepiece in parallel, the eyepiece being higher than the objective lens when assembled in place.

5. The myopia prevention reader with double linkage support arm mechanisms according to claim 1, wherein the first support arm, the second support arm and the two connecting seats form a parallelogram structure, the first support arm and the second support arm are both rotatably connected with the connecting seats through rotating shafts, two ends of the gas spring face two opposite angles of the parallelogram respectively, and the gas spring is rotatably connected with the connecting seats through the rotating shafts adjacent to the gas spring.

6. The myopia prevention reading apparatus with double linkage support arm mechanisms according to claim 5, wherein the connecting seat is provided with a movable slot for the gas spring to extend into, the rotating shaft penetrates through the movable slot, and the gas spring extends into the movable slot and is hinged with the rotating shaft.

7. The myopia prevention reader with dual linkage support arm mechanism according to claim 1, wherein the side walls of the first and second support arms facing each other are each provided with a recess, the recesses respectively penetrating through the ends of the first and second support arms, and the connecting seat and the gas spring are both located in the recesses when assembled in place.

8. The myopia prevention apparatus according to claim 7, wherein the width of the recess in the first arm is greater than the width of the second arm, and wherein a portion of the second arm is positioned within the recess in the first arm when assembled in place.

9. The myopia prevention reading instrument with the double-linkage support arm mechanism according to claim 2, wherein a fixing seat is arranged on the back surface of the ocular, a connecting rod is connected to the fixing seat in a ball mode, a positioning groove for fixing the connecting rod is arranged on the connecting seat close to the ocular, a jack matched with a first anti-drop pin is arranged on the inner side wall of the positioning groove in a penetrating mode, and a stop position is arranged on the connecting rod corresponding to the first anti-drop pin.

10. The myopia prevention reader with double linkage support arm mechanism according to claim 1, wherein the support base comprises a lifting rod, a chassis arranged at the lower end of the lifting rod, and a connecting arm detachably arranged at the upper end of the lifting rod; the connecting arm comprises a connecting body in an inclined state, and two mounting sections which are respectively positioned at the upper end and the lower end of the connecting body, wherein the two mounting sections are in a vertical state, the lifting rod is connected to the mounting section adjacent to the lifting rod, and the connecting seat adjacent to the connecting arm is connected to the mounting section at the upper end of the connecting arm.