Summary of the invention
The purpose of the present invention is to provide a kind of turnbutton adjusting mechanism, focal length adjustment device and helmets, it is intended to solve
Existing adjusting knob cannot be used for the problem in dynamic linkage structure, and barrel assembly position remains to focusing after adjusting and adjusted
Section, use are very convenient.
The invention is realized in this way a kind of turnbutton adjusting mechanism, the turnbutton adjusting mechanism includes mounting plate, rotation company
The knob on the mounting plate one side is connect, the arc chute concentric with the knob is equipped on the mounting plate;Pass through
Shaft is mounted on the arc chute and with the transmission gear of knob transmission connection and setting in the mounting plate
For tensing the flexible connector of the shaft between the shaft.
As an improvement being fixedly connected with the driving gear being coaxially arranged, the drive in the knob lateral position
Moving gear is engaged with the transmission gear.
As an improvement one end of the flexible connector is fixed in the shaft, the other end is fixed on the arc
On the mounting plate part of the middle part warp direction of shape sliding slot.
As an improvement the side edge in the arc chute is equipped with barricade, flexible ring is connected on the barricade
Set.
As an improvement between the inner sidewall of the barricade and the side of the arc chute, there are spacing;It is described soft
Property ring set includes main ring body and the side plate that is connected at the main ring body two sides, and two side plates are inserted into institute respectively
It states at the position between the inner sidewall of barricade and the side of the arc chute.
As an improvement corresponding be equipped with fixed column on the mounting plate side, the flexible connector is connected to
In the fixed column.
As an improvement the flexible connector is elastic webbing, card is respectively equipped in the fixed column, the shaft
Slot, the elastic webbing are looped around on two card slots.
As an improvement being equipped with escape groove on mounting plate part of the transmission gear far from the knob side.
As an improvement the mounting plate is in step-like, the knob and the driving gear, the arc chute,
The transmission gear is arranged on same step surface, and the escape groove is arranged on another step surface.
The invention is realized in this way a kind of focal length adjustment device, the focal length adjustment device includes barrel assembly, setting
Display component on front side of the barrel assembly is equipped between the barrel assembly and the display component and prolongs along the longitudinal direction
The threaded rod stretched, the threaded rod and the barrel assembly, which are able to carry out relative rotation and are driven with the display component, to be connected
It connects, focus adjustment gear is installed on the end that the threaded rod is located at the barrel assembly side;It further include the knob tune
Mechanism is saved, the transmission gear is engaged with the focus adjustment gear.
As an improvement the threaded rod between the barrel assembly and the display component is at least provided with two,
It is separately installed with the focus adjustment gear on the every threaded rod, is set between at least two focus adjustment gears
There is drive mechanism;The transmission gear of the turnbutton adjusting mechanism is engaged with focus adjustment gear described in one of them.
As an improvement the barrel assembly and the display component are arranged at intervals with two groups, mirror described in every group of correspondence
The turnbutton adjusting mechanism is respectively equipped at cartridge module and the display component.
As an improvement being respectively arranged with three spiral shells between barrel assembly and the display component described in every group
Rasp bar, three threaded rods are separately positioned at the top, lower part and outside portion of the barrel assembly;The knob adjusts machine
The transmission gear of structure is engaged with the focus adjustment gear of outside portion.
As an improvement the drive mechanism is tooth belt, in the focus adjustment gear on top and outside portion
The focus adjustment gear between, between the focus adjustment gear of lower part and the focus adjustment gear of outside portion point
Not She You belt steering structure, the belt steering structure includes the outside tumbler being arranged on the barrel assembly, inside
Tumbler, the outer side band body of the tooth belt is wound on the outside tumbler, inner band body is wound on the inside tumbler
On.
As an improvement between the focus adjustment gear of outer side and the focus adjustment gear on top,
The tooth belt is respectively equipped between the focus adjustment gear of outside portion and the focus adjustment gear of lower part;Outside
The focus adjustment gear in portion is stepped gear wheel, and two tooth belts are looped around the small outer diameter wheel body portion of the stepped gear wheel
On point.
As an improvement the barrel assembly includes cylinder, the installation that is arranged at the cylinder large port outer side edges
Plate corresponds on the mounting plate and is respectively equipped with mounting hole at the every threaded rod;The display component include adjusting bracket,
The display screen being mounted in the adjusting bracket corresponds in the adjusting bracket and is equipped with threaded hole at the threaded rod.
The invention is realized in this way a kind of helmet, the helmet includes shell, is fixed on the shell institute
The guide rod and the focal length adjustment device in region are surrounded, the barrel assembly is mounted on the guide rod and energy
It is slided along the guide rod, the mounting plate of the turnbutton adjusting mechanism is fixed on the housing.
By adopting the above-described technical solution, turnbutton adjusting mechanism of the invention includes mounting plate, is rotatably connected on installation
Knob on plate one side is equipped with the arc chute concentric with knob on a mounting board, is mounted on arc chute by shaft
And with the transmission gear of knob transmission connection and be arranged between mounting plate and shaft for tensing the elastic connection of shaft
Part;The display component that focal length adjustment device includes barrel assembly, is arranged on front side of barrel assembly, in barrel assembly and display component
Between be equipped with the threaded rod that extends along the longitudinal direction, threaded rod and barrel assembly are relatively rotated and are passed with display component
Dynamic connection, is equipped with focus adjustment gear on the end that threaded rod is located at barrel assembly side, further includes turnbutton adjusting mechanism,
Transmission gear is engaged with focus adjustment gear;Helmet include shell, the guide rod being fixed in the surrounded region of shell, with
And focal length adjustment device, barrel assembly are installed on the guide bar and can be slided along guide rod, the mounting plate of turnbutton adjusting mechanism
It fixes on the shell.
Arc chute is mounted on by shaft due to being equipped with the arc chute concentric with knob, transmission gear on a mounting board
On, flexible connector is equipped between mounting plate and shaft, no matter barrel assembly is mobile or separate to turnbutton adjusting mechanism
It is mobile, it is always maintained in the elastic force effect lower transmissioning gear of flexible connector with focus adjustment gear and engages and transmission gear
It is sequentially connected with knob, after the position of barrel assembly changes, still can be adjusted by turnbutton adjusting mechanism focusing;
The turnbutton adjusting mechanism, focal length adjustment device and helmet solve existing adjusting knob and cannot be used in dynamic linkage structure
The problem of, barrel assembly position remains to focusing after adjusting and is adjusted, and use is very convenient.
Detailed description of the invention
Fig. 1 is the schematic perspective view of the turnbutton adjusting mechanism of the embodiment of the present invention;
Fig. 2 is the schematic cross-sectional view of the turnbutton adjusting mechanism of the embodiment of the present invention;
Fig. 3 is the decomposition texture schematic diagram of the turnbutton adjusting mechanism of the embodiment of the present invention;
Fig. 4 is the schematic perspective view of the focal length adjustment device of the embodiment of the present invention;
Fig. 5 is the schematic view of the front view of the focal length adjustment device of the embodiment of the present invention;
Fig. 6 is the structural schematic diagram of the focal length adjustment device adjustment state of the embodiment of the present invention;
Wherein, 11, mounting plate, 111, arc chute, 112, escape groove, 113, fixed column, 12, knob, 121, sliding tooth
Wheel, 13, shaft, 14, transmission gear, 15, fixed ring, 16, flexible connector, 17, flexible ring set, 171, main ring body, 172, side
Plate, 18, flexible lining ring, 21, guide rod, 22a, barrel assembly, 22b, barrel assembly, 221, cylinder, 222, mounting plate, 223,
Outside tumbler, 224, inside tumbler, 23a, display component, 23b, display component, 31, transmission shaft, 32, thread bush, 33, spiral shell
Line portion, 34, interpupillary distance regulating wheel, 41, threaded rod, 42, focus adjustment gear, 43, tooth belt, 44, guide shaft.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
Fig. 1 to Fig. 6 is the structural schematic diagram for the turnbutton adjusting mechanism that the present invention applies example, wherein Fig. 1 shows of the invention real
The schematic perspective view for applying the turnbutton adjusting mechanism of example, Fig. 2 shows the section views of the turnbutton adjusting mechanism of the embodiment of the present invention
Structural schematic diagram, Fig. 3 show the decomposition texture schematic diagram of the turnbutton adjusting mechanism of the embodiment of the present invention, and Fig. 4 shows this hair
The schematic perspective view of the focal length adjustment device of bright embodiment, Fig. 5 show the focal length adjustment device of the embodiment of the present invention
Schematic view of the front view, Fig. 6 shows the structural schematic diagram of the focal length adjustment device adjustment state of the embodiment of the present invention, in order to just
Part related to the present invention is only gived in statement figure.
After definition helmet is close to the side of user's head, before the side far from user's head is.
By Fig. 1, Fig. 2 and Fig. 3 it is found that the turnbutton adjusting mechanism includes mounting plate 11, is rotatably connected on 11 side of mounting plate
Knob 12 on face is equipped with the arc chute 111 concentric with knob 12 on mounting plate 11;And arc is mounted on by shaft 13
The transmission gear 14 being sequentially connected on shape sliding slot 111 and with knob 12, is equipped between mounting plate 11 and shaft 13 for drawing
The flexible connector 16 of tight shaft 13.Specifically, one end of flexible connector 16 is fixed in shaft 13, the other end is fixed on
On 11 part of mounting plate of the center warp direction of arc chute 111, in general, flexible connector 16 is fixedly connected with mounting plate 11
Position side of the arc chute 111 far from knob 12 is set;The transmission connection of knob 12 and transmission gear 14 is by such as
What under type was realized, the driving gear 121 being coaxially arranged is fixedly connected in 12 lateral position of knob, the driving gear and biography
Moving gear 14 engages, and realizes the transmission connection of knob 12 and transmission gear 14;Certainly, since arc chute 111 and knob 12 are same
Heart setting, can also be arranged belt between shaft 13 and the rotating part of knob 12, be driven by belt, be also able to achieve
The transmission connection of knob 12 and transmission gear 14.
The installation and use of turnbutton adjusting mechanism are explained as follows in conjunction with fig. 4 to fig. 6:
Barrel assembly 22a is corresponded on the shell of helmet, a knob tune is installed in the side of barrel assembly 22b respectively
Mechanism is saved, mounting plate 11 is fixed on the shell of helmet, and makes the coke on transmission gear 14 and respective side barrel assembly
It is engaged away from adjustment gear 42, turning knob 12 simultaneously drives 42 turns of focus adjustment gear by driving gear 121, transmission gear 14
It is dynamic, realize focus adjustment;When interpupillary distance between barrel assembly 22a, barrel assembly 22b tunes up, barrel assembly 22a, barrel assembly
22b is moved outward, and focus adjustment gear 42 can generate extruding to transmission gear 14, due to being equipped on mounting plate 11 and knob
12 concentric arc chutes 111, focus adjustment gear 42 will push transmission gear 14, and arcuately sliding slot 111 is slided, transmission
Gear 14 can be engaged with driving gear 121 always during arcuately sliding slot 111 slides, due in 111 axis of arc chute
It is equipped with flexible connector 16 between 11 part of mounting plate in line direction and shaft 13, is passed under the elastic force effect of flexible connector 16
Moving gear 14 is always maintained at focus adjustment gear 42 and engages, and after the position of barrel assembly changes, still can pass through knob
Regulating mechanism focusing is adjusted;When interpupillary distance between barrel assembly 22a, barrel assembly 22b is turned down, barrel assembly 22a, mirror
Cartridge module 22b moves inward, and focus adjustment gear 42, which can follow, to be moved inward, and acts in the elastic force of flexible connector 16
Under, arcuately sliding slot 111 slides transmission gear 14, can make transmission gear 14 and focus adjustment gear 42, driving gear 121 1
Straight engagement;The turnbutton adjusting mechanism solves the problems, such as that existing adjusting knob cannot be used in dynamic linkage structure, barrel assembly
Position remains to focusing after adjusting and is adjusted, and use is very convenient.
In the present embodiment, escape groove 112 is equipped on 11 part of mounting plate of the transmission gear 14 far from 12 side of knob,
Due to being connected with threaded rod 41 on focus adjustment gear 42, when avoiding barrel assembly position change, 11 focusing tune of mounting plate
It saves the threaded rod 41 on gear 42 and is formed and hindered.
In the present embodiment, it is equipped with barricade in the side edge of arc chute 111, is connected on the surrounded region of barricade soft
Property ring set 17, convenient for shaft 13 arcuately sliding slot 111 slide.Specifically, the side of the inner sidewall of barricade and arc chute 111
Between there are spacing;Flexible ring set 17 includes main ring body 171 and the side plate being connected at 171 two sides of main ring body
172, both side plate 172 is inserted at the position between the inner sidewall of barricade and the side of arc chute 111 respectively.It can not only increase
With the contact area of shaft 13 axially at arc chute 111, keep the sliding of shaft 13 more steady;And in main ring body
Side plate 172 is respectively set at 171 two sides, shaft 13 can be made to be on the center line of arc chute 111 using its flexibility, protected
The accuracy of sliding is demonstrate,proved, guarantees that transmission gear 14 is engaged with driving gear 121.
It is equipped with fixed ring 15 in the end that shaft 13 passes through arc chute 111, is set between fixed ring 15 and shaft 13
Shaft 13 is mounted at arc chute 111 by flexible inner bushing ring 18, realization.Specifically, shaft 13 can be with transmission gear
14 are fixedly connected;Or shaft 13 is relatively rotatable to each other between transmission gear 14 and shaft 13 directly through transmission gear 14,
The end of shaft 13 is equipped with limiting section, prevents transmission gear 14 from falling off from shaft 13.
In the present embodiment, it is equipped on corresponding 11 side of mounting plate in end that shaft 13 passes through arc chute 111 solid
Fixed column 113, flexible connector 16 are connected in fixed column 113.Specifically, flexible connector 16 is elastic webbing, in fixed column
113, card slot is respectively equipped in shaft 13, elastic webbing is looped around on two card slots.Certainly, flexible connector 16 is also possible to spring.
In the present embodiment, for the ease of installation, mounting plate 11 is in step-like, knob 12 and driving gear 121, arc cunning
Slot 111, the transmission gear 14 being mounted on arc chute 111 are arranged on same step surface, and escape groove 112 is arranged at another
On terrace.
By Fig. 4, Fig. 5 and Fig. 6 it is found that further relating to a kind of focal length adjustment device in the present invention, which includes
Barrel assembly, the display component being arranged on front side of barrel assembly are equipped with along the longitudinal direction between barrel assembly and display component
The threaded rod 41 of extension, threaded rod 41 and barrel assembly are able to carry out relative rotation and are sequentially connected with display component, lead to
Often, threaded rod 41 is rectangular thread convenient for transmission, is equipped with focus adjustment on the end that threaded rod 41 is located at barrel assembly side
Gear 42;It further include above-mentioned turnbutton adjusting mechanism, the transmission gear 14 of the turnbutton adjusting mechanism is engaged with focus adjustment gear 42.
Specifically, the threaded rod 41 between barrel assembly and display component is at least provided with two, on every threaded rod 41 respectively
Focus adjustment gear 42 is installed, drive mechanism is equipped between at least two focus adjustment gears 42, turnbutton adjusting mechanism
Transmission gear 14 is engaged with one of focus adjustment gear 42.
The transmission gear 14 of turnbutton adjusting mechanism is engaged with focus adjustment gear 42, and turning knob 12 simultaneously passes through driving gear
121, transmission gear 14 drives the rotation of focus adjustment gear 42 and adjustment gear 42 is fixed together with threaded rod 41,
Turning knob 12 can drive threaded rod 41 to rotate, and be driven due to threaded rod 41 and barrel assembly rotation connection, with display component
Connection, when at least two threaded rods 41 between barrel assembly and display component rotate, display component generates threadingly bar 41
Sliding, realizes the adjusting of focal length;After interpupillary distance is adjusted, the position of barrel assembly changes, to the side close to turnbutton adjusting mechanism
To or far from turnbutton adjusting mechanism direction it is mobile, the distance between transmission gear 14 and focus adjustment gear 42 change
Become, due to being equipped with flexible connector 16 between 11 part of mounting plate of 111 axis direction of arc chute and shaft 13, in elasticity
The elastic force effect lower transmissioning gear 14 of connector 16 is remained with focus adjustment gear 42 to be engaged, after barrel assembly position is adjusted
It remains to focusing to be adjusted, solves the problems, such as that existing adjusting knob cannot be used in dynamic linkage structure, using unusual
It is convenient.
In the present embodiment, barrel assembly and display component are arranged at intervals with two groups, as shown in fig. 4 to fig. 6, lens barrel group
Part 22a and display component 23a, barrel assembly 22b and display component 23b are corresponded to and are distinguished at every group of barrel assembly and display component
Equipped with above-mentioned turnbutton adjusting mechanism, turnbutton adjusting mechanism is only shown in figure at side.
Specifically, three threaded rods 41, three screw threads are respectively arranged between barrel assembly and display component at every group
Bar 41 is separately positioned at the top, lower part and outside portion of barrel assembly, the transmission gear 14 of turnbutton adjusting mechanism and outside portion
Focus adjustment gear 42 engage.
In the present embodiment, drive mechanism is tooth belt 43, since three focus adjustment gears 42 are separately positioned on mirror
At the top of cartridge module, lower part and outside portion, it is therefore desirable in the focus adjustment gear 42 on top and the focus adjustment of outside portion
Belt steering knot is respectively set between gear 42, between the focus adjustment gear 42 of lower part and the focus adjustment gear 42 of outside portion
Structure, the belt steering structure include the outside tumbler 223 being arranged on barrel assembly, inside tumbler 224, tooth belt 43
Outer side band body on tumbler 223 on the outside, inner band body be wound on inside tumbler 224 on, specifically, outside tumbler
223 be arc panel, inside tumbler 224 is cylindrical body.Certainly, drive mechanism can also adjacent two focus adjustments gear 42 it
Between be equipped with multiple intermediate gears be driven.
In order to guarantee that three focus adjustment gears 42 can be rotated simultaneously, outer side focus adjustment gear 42 with
Distinguish between the focus adjustment gear 42 on top, between the focus adjustment gear 42 of outside portion and the focus adjustment gear 42 of lower part
Equipped with tooth belt 43;The focus adjustment gear 42 of outside portion is stepped gear wheel, and two tooth belts 43 are looped around stepped gear wheel
On small outer diameter wheel body portion, certainly, platform is also can be set into the focus adjustment gear 42 on top, the focus adjustment gear 42 of lower part
The form of rank gear.
In the present embodiment, barrel assembly 22a, barrel assembly 22b respectively include cylinder 221, are arranged in 221 big end of cylinder
Mounting plate 222 at mouthful outer side edges and the eyeglass being mounted at 221 portlet of cylinder, correspond to every spiral shell on mounting plate 222
Mounting hole is respectively equipped at rasp bar 41, outside tumbler 223, inside tumbler 224 are arranged on mounting plate 222, specifically,
Threaded rod 41 can be mounted on mounting hole by thin-wall bearing, axle sleeve etc., can be realized the phase of threaded rod 41 with barrel assembly
To rotation and do not move axially.Certainly, it is convenient for barrel assembly 22a, barrel assembly 22b along guide rod to mitigate weight
21 slidings, can be between the focus adjustment gear 42 on top and the focus adjustment gear 42 of outside portion, the focus adjustment of lower part
Notch is set on 222 part of mounting plate between gear 42 and the focus adjustment gear 42 of outside portion, makes the focus adjustment on top
The mounting portion of protrusion is formed at the corresponding threaded rod 41 of gear 42, at the corresponding threaded rod 41 of focus adjustment gear 42 of lower part.
Display component 23a, display component 23b respectively include adjusting bracket, is mounted in adjusting bracket display screen and
Lid sets outer cover on a display screen, corresponds in adjusting bracket and is respectively equipped with threaded hole at every threaded rod 41.
Further, display component 23a and barrel assembly 22a, display component 23b and barrel assembly 22b are sent out in order to prevent
Life collides and damages display component 23a, display component 23b, and flexible ring is equipped on side of the adjusting bracket close to barrel assembly,
Flexible ring is usually made of rubber, silica gel etc..
In the present embodiment, for the ease of barrel assembly 22a and display component 23a, barrel assembly 22b and display component
Relative movement between 23b is additionally provided with guide shaft 44 between barrel assembly 22a and display component 23a, which is fixed on mirror
The pilot hole in adjusting bracket on the mounting plate 222 of cartridge module and across display component, and can be limited by guide shaft 44
Determine the range of focus adjustment.Specifically, it is corresponded in adjusting bracket and is equipped with sliding sleeve at guide shaft 44.
In general, corresponding ipsilateral barrel assembly and display component are equipped with two guide shafts 44, it is separately positioned on outside portion screw thread
The two sides up and down of bar 41.
A kind of helmet is further related in the present invention, which includes shell, is fixed on the surrounded region of shell
Interior guide rod 21, barrel assembly 22a and barrel assembly 22b are mounted on guide rod 21 and can be sliding along guide rod 21 respectively
It is dynamic, it corresponds to be respectively equipped with above-mentioned turnbutton adjusting mechanism at barrel assembly 22a, the barrel assembly 22b of every side on the shell, the knob
The mounting plate 11 of regulating mechanism is fixed on the shell;The same side of barrel assembly 22a, barrel assembly 22b is arranged in guide rod 21
Place;Interpupillary adjustment mechanism is equipped between barrel assembly 22a and barrel assembly 22b, which includes being respectively set
Barrel assembly 22a, barrel assembly 22b far from 21 other side of guide rod and the transmission shaft 31 parallel with guide rod 21, point
The follower that is not arranged in two transmission shafts, 31 adjacent end and interpupillary distance for driving follower to rotate is engaged with two followers
Regulating wheel 34 is connected separately with the thread bush 32 covered in transmission shaft 31, in transmission shaft on barrel assembly 22a, barrel assembly 22b
Corresponding position is equipped with the threaded portion 33 that connect with 32 screw-driven of thread bush on 31, in general, interpupillary distance regulating wheel 34 pass through support plate or
Person's installation axle and shell are rotatablely connected.
Since two followers are separately mounted on the transmission shaft 31 of two sides, two can be driven by rotation interpupillary distance regulating wheel 34
Follower carries out reversed rotation, and is respectively equipped on barrel assembly 22a, barrel assembly 22b and passes with 31 screw thread of transmission shaft
The thread bush 32 of dynamic connection, can be made by the rotation of transmission shaft 31 barrel assembly 22a, barrel assembly 22b along guide rod 21 into
Row is opposite or is moved away from, and realizes the purpose for adjusting interpupillary distance.Interpupillary distance adjust after, barrel assembly 22a, barrel assembly 22b with it is right
Answer the distance between side cock regulating mechanism that will change, due at mounting plate 11 of 111 axis direction of arc chute
Divide and be equipped with flexible connector 16 between shaft 13, acts on lower transmissioning gear 14 and focus adjustment in the elastic force of flexible connector 16
Gear 42 remains engagement, and barrel assembly 22a, the position barrel assembly 22b remain to adjust by the knob of respective side after adjusting
Mechanism focusing is adjusted, and solves the problems, such as that existing adjusting knob cannot be used in dynamic linkage structure, using unusual
It is convenient.
Specifically, interpupillary distance regulating wheel 34 is crown gear, two followers are straight-tooth gear, certainly, interpupillary distance regulating wheel 34
It is also possible to bevel gear, corresponding two follower is also configured as bevel gear.
The foregoing is merely some embodiments of the present invention, are not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.