Sight distance adjusting module of eye protection instrument

Abstract

The utility model relates to a sight distance adjusting module of an eye protection instrument. The sight distance adjusting module comprises a main shell, a panel, an auxiliary shell and two lenses, wherein the panel is fixed at an opening in the front side of the main shell; the auxiliary shell is movably arranged in an opening in the rear side of the main shell and has a front-back translation function; the adjusting unit is arranged among the main shell, the auxiliary shell and the panel; the adjusting unit comprises a driving shaft which is transversely and rotatably connected to the edge of the upper portion of the outer wall of the rear side of the panel, two first bevel gears which are concentrically fixed to the two ends of the driving shaft correspondingly, a first hand wheel which is concentrically fixed to the outer side of one of the first bevel gears, and two transmission assemblies which are arranged below the two ends of the driving shaft correspondingly and are arranged in a bilateral symmetry mode. According to the utility model, the use effect and the comfort level are obviously improved, and the use safety is effectively ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to eye protection instrument technical field especially relates to an eye protection instrument's sight distance adjustment module. BACKGROUND

[0002] Eye protection instrument is a kind of electronic equipment specially designed for protecting eyes, relieving eye fatigue and preventing eye diseases;It helps users relieve eye fatigue, improve eye blood circulation and prevent eye diseases through multiple functions;Some eye protection instruments are equipped with massage, hot compress, vibration and other functions, the purpose is to act on the acupoints around eyes to effectively relieve eye fatigue;Some eye protection instruments are through making eyes watch video images that can guide eyeball to move slightly, thereby stimulating eye nerves and promoting blood circulation to achieve the effect of relieving eye fatigue.

[0003] Those eye protection instruments that can play video images with the function of relieving eye fatigue must install electronic screen for displaying video images inside or directly fix mobile phone in detachable mode inside eye protection instrument, in addition, must be equipped with lenses for adjusting focal length;But at present on the market, the eye protection instruments of this type mostly cannot adjust the distance between video images and user's two eyes, and the interval between two lenses, and the difference exists in user's eyesight and the interpupillary distance between two eyes, which leads to that user's two eyes cannot clearly watch video images, and the use effect and comfort are poor;At the same time, watching video under unreasonable interpupillary distance may cause eyeball deviation, and use safety also has defects, which needs to be further improved. UTILITARY MODEL CONTENT

[0004] In view of the above-mentioned status of prior art, the technical problem to be solved by the utility model is to provide an eye protection instrument's sight distance adjustment module that can adjust the distance between user's two eyes and video images, and the interval between two lenses, thereby significantly improving use effect and comfort, and eliminating the possibility of eyeball deviation to effectively ensure use safety.

[0005] The utility model solves the technical scheme that the above-mentioned technical problem employs as follows: an eye protection instrument's sight distance adjustment module, including main casing, the panel of fixed in the front side opening of main casing, the inside of the rear side opening of main casing with the function of front and back translation of movablely being equipped with secondary casing, and two lenses that are symmetrically distributed in the inside of secondary casing, its characterized in that:

[0006] It further includes adjusting unit between main casing, secondary casing and panel;

[0007] The adjusting unit comprises a driving shaft connected to the upper edge of the rear outer wall of the panel transversely and rotatably, two first bevel gears fixed concentrically at the two ends of the driving shaft respectively, a first hand wheel fixed concentrically at the outer side of one of the first bevel gears, and two transmission assemblies respectively arranged below the two ends of the driving shaft and symmetrically arranged left and right.

[0008] The transmission assembly comprises a transmission shaft connected to the rear outer wall of the panel vertically and rotatably, a second bevel gear and a third bevel gear fixed concentrically at the upper and lower ends of the transmission shaft respectively, an internally threaded column sleeve fixed transversely at the front side of the auxiliary housing, an externally threaded column inserted into the internally threaded column sleeve concentrically, and a fourth bevel gear fixed concentrically at the front end of the externally threaded column and meshing with the third bevel gear.

[0009] The second bevel gears in the two transmission assemblies are meshed with the two first bevel gears respectively.

[0010] A cavity hole is formed in the top left or right corner of the main housing above the first hand wheel, and the upper part of the first hand wheel passes through the cavity hole and extends to the outside of the main housing.

[0011] Preferably, the adjusting unit further comprises two lens supports movably arranged in the auxiliary housing to have left-right translation functions, two lenses are fixed on the two lens supports respectively, the upper side of the lens support on the left side is formed with a first extension strip facing upward to the right, and correspondingly, the upper side of the lens support on the right side is formed with a second extension strip below the first extension strip facing upward to the left, the lower side of the first extension strip and the upper side of the second extension strip are both formed with a transmission tooth surface arranged transversely, and the two transmission tooth surfaces are arranged in parallel.

[0012] Preferably, the adjusting unit further comprises a rotating disc rotatably connected to the front side of the auxiliary housing and located in front of the first extension strip and the second extension strip, and the rear end center of the rotating disc is formed with a spur gear between the first extension strip and the second extension strip, and the two transmission tooth surfaces are meshed on the upper and lower sides of the spur gear respectively.

[0013] Preferably, the adjusting unit further comprises a second hand wheel fixed concentrically at the front end of the rotating disc, and a notch groove is formed in the upper edge of the rear opening of the main housing above the second hand wheel, and the upper part of the second hand wheel passes through the notch groove and extends to the outside of the main housing.

[0014] Preferably, the upper edge of the rear opening of the auxiliary housing is formed forwardly with an extension plate above the first extension strip, the end edge of the extension plate is formed with a limiting groove, and the adjusting unit further comprises a guide block movably connected in the limiting groove to have forward-backward translation function.

[0015] Preferably, the rear side edges of the guide block are formed with bent plates downward, correspondingly, the front side of the auxiliary housing is formed with a convex column between the first extension strip and the second extension strip, the straight gear and the second hand wheel are rotatably sleeved and connected outside the convex column, and the bent plates are fixed at the end of the convex column and located in front of the second hand wheel.

[0016] Preferably, the left and right side inner walls of the limiting groove are formed with a transversely arranged guide groove, correspondingly, the left and right side edges of the guide block are formed with a transversely arranged guide strip outward, and the two guide strips are respectively movably inserted into the two guide grooves.

[0017] Compared with the prior art, the utility model has the advantages that the utility model can adjust the distance between the two eyes of the user and the video image and the interval between the two lenses, so that the two eyes of the user with different vision and different pupil distances can clearly watch the video image, and the use effect and comfort are improved, and the possibility of eye deviation is eliminated, and the use safety is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0018] Fig. 1 It is a right front side exploded view of the utility model;

[0019] Fig. 2 It is a right front side exploded view of the lens support, the rotating disc, the second hand wheel and the guide block of the utility model;

[0020] Fig. 3 It is a right rear side view of the rotating disc of the utility model. DETAILED DESCRIPTION

[0021] Unless otherwise defined, technical terms or scientific terms used in the utility model shall be understood as the usual meaning understood by a person with ordinary skills in the art to which the utility model belongs. The "first", "second" and similar words used in the utility model do not represent any order, quantity or importance, but are only used to distinguish different components. "Include" or "contain" and similar words mean that the elements or objects before the words cover the elements or objects listed after the words and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connection, but can include electrical connection, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to represent relative positional relationship, and when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0022] In order to keep the following description of the embodiments of the utility model clear and brief, the utility model omits the detailed description of known functions and known components.

[0023] As Figs. 1-3 shown, a sight distance adjusting module of an eye protection instrument, comprising a main shell 1, a panel 3 fixed at the front opening of the main shell 1, a secondary shell 2 movably arranged inside the rear opening of the main shell 1 to have forward and backward translation functions, and two lens 4 arranged inside the secondary shell 2 and symmetrically distributed left and right.

[0024] Further comprising an adjusting unit 6 arranged between the main shell 1, the secondary shell 2 and the panel 3.

[0025] The adjusting unit 6 comprises a driving shaft 61 transversely and rotatably connected to the upper edge of the rear outer wall of the panel 3, two first bevel gears 62 concentrically fixed at the two ends of the driving shaft 61 respectively, a first hand wheel 69 concentrically fixed to the outer side of one of the first bevel gears 62, and two transmission assemblies arranged below the two ends of the driving shaft 61 and symmetrically arranged left and right respectively.

[0026] The transmission assembly comprises a transmission shaft 63 vertically and rotatably connected to the rear outer wall of the panel 3, a second bevel gear 64 and a third bevel gear 65 concentrically fixed at the upper and lower ends of the transmission shaft 63 respectively, an inner threaded column sleeve 66 fixed transversely at the front side of the secondary shell 2, an outer threaded column 67 concentrically inserted and screwed into the inner threaded column sleeve 66, and a fourth bevel gear 68 concentrically fixed to the front end of the outer threaded column 67 and meshed with the third bevel gear 65.

[0027] The second bevel gears 64 in the two transmission assemblies are meshed with the two first bevel gears 62 respectively.

[0028] A cavity hole 101 located above the first hand wheel 69 is formed at the top left or right corner of the main shell 1, and the upper part of the first hand wheel 69 passes through the cavity hole 101 and extends to the outside of the main shell 1.

[0029] The adjusting unit 6 further comprises two lens holders 613 movably arranged inside the secondary shell 2 to each have left and right translation functions, the two lens 4 are fixed on the two lens holders 613 respectively, the upper side of the left lens holder 613 forms a first extension strip 6131 upward to the right, correspondingly, the upper side of the right lens holder 613 forms a second extension strip 6132 downward to the left below the first extension strip 6131, the lower side of the first extension strip 6131 and the upper side of the second extension strip 6132 each form a transmission tooth surface 6133 transversely arranged, and the two transmission tooth surfaces 6133 are arranged parallel to each other.

[0030] The adjusting unit 6 further comprises a rotating disc 611 rotatably connected to the front side of the secondary shell 2 and located in front of the first extension strip 6131 and the second extension strip 6132, and the rear end of the rotating disc 611 is centrally outwardly formed with a spur gear 6111 located between the first extension strip 6131 and the second extension strip 6132, and two transmission tooth surfaces 6133 are respectively engaged on the upper and lower sides of the spur gear 6111.

[0031] The adjusting unit 6 further comprises a second hand wheel 610 concentrically fixed to the front end of the rotating disc 611, and the upper edge of the rear opening of the main shell 1 is provided with a notch groove 102 located above the second hand wheel 610, and the upper part of the second hand wheel 610 passes through the notch groove 102 and extends to the outside of the main shell 1.

[0032] The upper edge of the rear opening of the secondary shell 2 is forwardly formed with an extension plate 21 located above the first extension strip 6131, and the end edge of the extension plate 21 is provided with a limiting groove 22, and the adjusting unit 6 further comprises a guide block 612 movably connected in the limiting groove 22 to have a forward and backward translation function.

[0033] The rear side edge of the guide block 612 is downwardly formed with a bent plate 6121, and correspondingly, the front side of the secondary shell 2 is upwardly formed with a protruding column 23 located between the first extension strip 6131 and the second extension strip 6132, and the spur gear 6111 and the second hand wheel 610 are rotatably sleeved and connected outside the protruding column 23, and the bent plate 6121 is fixed to the end of the protruding column 23 and located in front of the second hand wheel 610.

[0034] The left and right side inner walls of the limiting groove 22 are each formed with a transversely arranged guide groove 23, and correspondingly, the left and right side edges of the guide block 612 are each outwardly formed with a transversely arranged guide strip 6122, and the two guide strips 6122 are movably inserted in the two guide grooves 23, respectively.

[0035] Working principle:

[0036] Since the upper part of the first hand wheel 69 passes through the cavity hole 101 and extends to the outside of the main shell 1, the upper part of the first hand wheel 69 is manually actuated to drive the first hand wheel 69 to rotate, thereby driving the two first bevel gears 62 to rotate in the same direction by means of the driving shaft 61, thereby driving the transmission shafts 63 in the two transmission assemblies to rotate in the same direction by means of the second bevel gears 64 in the two transmission assemblies, respectively, thereby driving the two outer threaded columns 67 to rotate in the same direction in the two inner threaded column sleeves 66 by means of the third bevel gears 65 and the fourth bevel gears 68 in the two transmission assemblies, respectively, thereby driving the two inner threaded column sleeves 66 to translate forward or backward according to the principle of screw connection, thereby driving the secondary shell 2 to translate forward or backward to produce relative movement with the main shell 1.

[0037] The sub-housing 2 is worn on the face of the user and kept still, and if the first hand wheel 69 is actuated, the main housing 1 is finally moved backward or forward or horizontally; then the mobile phone for playing the eye protection video is fixed in front of the main housing 1, and when the main housing 1 moves, the mobile phone moves synchronously, thereby changing the front-back distance between the mobile phone and the two lenses 4 arranged in the sub-housing 2, and the distance between the two eyes of the user and the two lenses 4 remains unchanged, so that the vision distance is adjusted to enable the two eyes of the user to clearly watch the eye protection video played in the mobile phone.

[0038] Since the interpupillary distance of each person is different, the left-right distance between the two lenses 4 also needs to be adjusted; when adjusting, since the upper part of the second hand wheel 610 passes through the gap slot 102 and extends to the outside of the main housing 1, the second hand wheel 610 can be actuated by hand to drive the rotating disc 611 to rotate, and then the first extension bar 6131 and the second extension bar 6132 are driven to move in opposite directions by the meshing relationship between the straight gear 6111 and the two transmission tooth surfaces 6133, thereby adjusting the distance between the two lens holders 613, and then adjusting the distance between the two lenses 4, so that the two lenses 4 are located in front of the two eyes of the user, respectively.

[0039] When the sub-housing 2 and the main housing 1 move relatively, since the guide block 612, the second hand wheel 610 and the rotating disc 611 are arranged on the sub-housing 2, the guide block 612, the second hand wheel 610 and the rotating disc 611 also move relatively with the main housing 1, but the guide block 612 moves forward and backward in the limiting slot 22 by the sliding connection relationship between the two guide bars 6122 and the two guide slots 23, and the upper part of the second hand wheel 610 moves forward and backward in the gap slot 102.

[0040] The utility model can adjust the distance between the two eyes of the user and the video image, and also can adjust the distance between the two lenses 4, thereby enabling the two eyes of the user with different visual acuity and interpupillary distance to clearly watch the video image, thereby significantly improving the use effect and comfort; at the same time, the possibility of eye deviation is eliminated to effectively ensure the use safety.

[0041] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the utility model, but not to limit them; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or equivalently replace some technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the utility model.

Claims

1. A sight distance adjusting module of an eye protection device, comprising a main housing, a panel fixed at a front opening of the main housing, a sub-housing movably arranged inside a rear opening of the main housing to have a front-rear translation function, and two lenses arranged inside the sub-housing and symmetrically distributed left and right, characterized in that: it further comprises an adjusting unit arranged between the main housing, the sub-housing and the panel; the adjusting unit comprises a driving shaft transversely and rotatably connected to an upper edge of a rear outer wall of the panel, two first bevel gears concentrically fixed at two ends of the driving shaft, a first hand wheel concentrically fixed outside one of the first bevel gears, and two transmission assemblies symmetrically arranged left and right and arranged below the two ends of the driving shaft; the transmission assembly comprises a transmission shaft vertically and rotatably connected to the rear outer wall of the panel, a second bevel gear and a third bevel gear concentrically fixed at the upper and lower ends of the transmission shaft, an internally threaded column fixed transversely at the front side of the sub-housing, an externally threaded column concentrically inserted into the internally threaded column, and a fourth bevel gear concentrically fixed at the front end of the externally threaded column and meshed with the third bevel gear; the second bevel gears of the two transmission assemblies are respectively meshed with the two first bevel gears; a cavity hole above the first hand wheel is formed at a left or right corner of the top of the main housing, and the upper part of the first hand wheel passes through the cavity hole and extends to the outside of the main housing. the adjusting unit further comprises two lens holders movably arranged inside the sub-housing to have a left-right translation function, and the two lenses are respectively fixed on the two lens holders; the upper side of the left lens holder is formed with a first extension strip pointing to the upper right, and correspondingly, the upper side of the right lens holder is formed with a second extension strip below the first extension strip pointing to the upper left; the lower side of the first extension strip and the upper side of the second extension strip are both formed with a transmission tooth surface transversely arranged; and the two transmission tooth surfaces are arranged in parallel. the adjusting unit further comprises a rotating disc rotatably connected to the front side of the sub-housing and located in front of the first extension strip and the second extension strip; the rear end center of the rotating disc is outwardly formed with a spur gear between the first extension strip and the second extension strip; and the two transmission tooth surfaces are respectively meshed on the upper and lower sides of the spur gear. the adjusting unit further comprises a second hand wheel concentrically fixed at the front end of the rotating disc; a notch groove above the second hand wheel is formed at the upper edge of the rear opening of the main housing; and the upper part of the second hand wheel passes through the notch groove and extends to the outside of the main housing. the upper edge of the rear opening of the sub-housing is forwardly formed with an extension plate above the first extension strip; the end edge of the extension plate is formed with a limiting groove; and the adjusting unit further comprises a guide block movably connected in the limiting groove to have a front-rear translation function. the rear edge of the guide block is downwardly formed with a bent plate; correspondingly, the front side of the sub-housing is forwardly formed with a convex column between the first extension strip and the second extension strip; the spur gear and the second hand wheel are rotatably sleeved on the outside of the convex column; and the bent plate is fixed at the end of the convex column and located in front of the second hand wheel.

2. The visual distance adjusting module of the eye protection device according to claim 1, wherein, ​ 3. The visual distance adjustment module of the eye protection device according to claim 2, wherein, ​ 4. The visual distance adjusting module of the eye protection device according to claim 3, wherein, ​ 5. The visual distance adjustment module of the eye protection device according to claim 4, wherein, ​ 6. The visual range adjustment module of the eye protection device according to claim 5, wherein, ​ 7. The visual distance adjustment module of the eye protection device according to claim 5, wherein, The left and right inner walls of the limiting groove are formed with a transversely arranged guide groove, and the left and right edges of the guide block are formed with a transversely arranged guide strip, and the two guide strips are respectively movably inserted into the two guide grooves.

Images