Summary of the invention
The utility model provides that a kind of outward appearance is succinct, fail safe and comfortableness is good, soundproof effect is good, tonequality the is good adjustable headphone of earmuff distance, and the mechanism that has solved the problem of existing headphone lower tone, soundproof effect difference and will regulate the earmuff distance is arranged on outward appearance clumsiness, the poor stability that the earmuff outside caused, the problem that influences comfort.
Above technical problem solves by following technical proposal: the adjustable headphone of a kind of earmuff distance, comprise headband, be arranged on a pair of earmuff at two ends, the headband left and right sides, be arranged on the audio board of earmuff inside, be arranged on the loud speaker of earmuff inside and the lead that the electronic component in a pair of earmuff is electrically connected, described headband is the rubber-like clip, intert in described a pair of earmuff at the two ends, the left and right sides of described headband telescopically respectively, on the side faces at both ends of the left and right sides of described headband, be provided with if this buckling groove, described buckling groove distributes along the bearing of trend of described headband, in described earmuff, be provided with the clamping block that matches with described buckling groove, described clamping block is connected with described earmuff elasticity, is provided with the chute for described headband slip usefulness in described earmuff.The method of regulating the distance of earmuff is, realize by the degree of depth that changes headband two ends insertion earmuff, fixing being stuck in the buckling groove by clamping block between headband and the earmuff realized, owing to be connected for elasticity between clamping block and the earmuff, when making headband do Plug Action with respect to earmuff, energy slide relative between snap groove and the clamping block, but clamping block is attached on the buckling groove all the time, the mode of flexible clamping in use, can keep good clamping dynamics always, headband is designed to rubber-like and can binds round, can be clamped in user's head automatically, the design chute cooperates slide block to slide, and convenience and headband are difficult for rocking during slip.
As preferably, described clamping block is provided with elasticity and connects neck, described clamping block connects neck and the elasticity connection mutually of described earmuff by described elasticity, and described elasticity connects neck and described clamping block is structure as a whole, and described elasticity connects neck and is fixed on the described earmuff by screw.Directly design is connected neck and realizes that clamping block is connected with elasticity between the earmuff with elasticity that clamping block is structure as a whole, and simple in structure, parts are few, elasticity connects neck and is connected by screw with earmuff, when clamping block or the damage of elasticity connection neck, can change separately, maintenance cost is low.
Preferred as another, be provided with spacing hole in the described earmuff, be provided with the spring that clamping block is connected with earmuff elasticity between described spacing hole and the described clamping block, described spring one end is welded on the described clamping block, and the other end of described spring wears and is connected in the described spacing hole.Realize that by spring clamping block is connected with elasticity between the earmuff, good springiness, the elastic force controlled amount is good, and spring is welded on the clamping block, and connected mode is simply used, it is little to take up room, design spacing hole between spring and the earmuff and fix spring by this spacing hole, the spring difficult drop-off is convenient to clamping block is taken off in earmuff simultaneously, convenient for installation and maintenance, maintenance cost is low.
As preferably, described earmuff is provided with the jack that passes for described headband, be matched in clearance between described jack and the described headband, the distance of the outer face of the described jack of described clamping block distance is greater than the distance between two buckling grooves of head and the tail in described several buckling grooves.Be designed to matched in clearance between the jack on headband and the earmuff, laborsaving during adjustment, when using, children and women's user can not feel effort yet, hommization degree height, the distance of the outer face of the described jack of clamping block distance is greater than the distance between two buckling grooves of head and the tail in described several buckling grooves, in the use, earmuff is during apart from maximum, clamping block is connected in that buckling groove of least significant end, make the snap groove on the headband be positioned at earmuff inside all the time, when holding headband and on earmuff, plugging, the bad snap groove that touches of hand, comfortableness and fail safe are good.
As preferably, described earmuff comprises inside cover and outboard cover, described outboard cover is the spherical crown shape, described inside cover is circular tabular, described outboard cover and inside cover link together by self-tapping screw, be provided with annular blimp on the outer surface of described inside cover, described annular blimp circumferentially extends along the edge of described inside cover.When the outside is meant user mode, that side away from user's ear, otherwise then be inboard, so left earmuff is just opposite with the outside and the inboard of right earcup, earmuff is designed to cover to enclose by two form and connect by tapping screw, bonding strength is good, and convenient during the loading and unloading internal part, the inside cover of earmuff is designed to tabular, comfortableness is good when being attached on the auricle, outboard cover is designed to the spherical crown shape, and is both attractive in appearance, and anti-pressure ability is good simultaneously, earmuff is cracky not, long service life designs annular blimp, during user mode, blimp is fitted in the periphery of external auditory meatus outer end, play preventing that ambient sound from importing in the ear and the sound of earphone passes in the external environment condition, audibility is good, and is little to the noise pollution of environment.
As preferably, the side away from described inside cover of described annular blimp is an arcwall face, and described annular blimp comprises sponge inner core and cortex top layer.The sponge inner core is set, and not only soundproof effect is good, and can alleviate the long-time compressing fatigue of using ear, and comfortableness was good when the cortex top layer was attached to ear.
As preferably, described loud speaker comprises sound basin and vibrating diaphragm, and described sound basin is that Nd-Fe-B magnet steel is made, and described vibrating diaphragm is the PET transparent membrane, and the thickness of described vibrating diaphragm is 12 microns.It is strong and powerful that the loud speaker of this kind structure has low frequency, and intermediate frequency is accurate naturally, high frequency extend still can result of broadcast.
As preferably, described audio board is provided with volume switch, mains switch and USB interface, described volume switch and mains switch are installed on the rear side surface of described earmuff, described USB interface is installed on the downside surface of described earmuff, and described earmuff is provided with the USB interface lid that matches with described USB interface.When being meant user mode, rear side is positioned at that side at user rear; volume switch and mains switch are installed on the rear side surface of described earmuff; when the state of wearing is adjusted; be generally with thumb and carry out pull switch; and lift the rear that thumb behind the hand just is positioned at head; so switch designs is convenient when rear side is adjusted; design USB interface lid; can prevent that foreign matter from entering USB interface; USB interface there is defencive function; when USB interface is not used, do not have broken sensation simultaneously, can not influence overall profile shape attractive in appearance of earmuff appearance.
As preferably, described headband is a flat band of uniform size, and the mid portion of described headband is that camber line shape, two end portions are linear.The flat design, when being subjected to pushing unexpectedly, be difficult for head is caused damage, can alleviate the fatigue of long-time use to the head compressing, comfortableness is good, headband is designed to size evenly, the high conformity of headband each several part intensity, outward appearance simplicity generosity, mid portion are designed to camber line shape, two end portions is designed to linear, be complementary with the contour shape on the crown and the shape of face, head is stressed evenly, is difficult for producing fatigue, and two end portions is designed to linear also to be had, convenient when headband is extracted in earmuff or inserted, be easy to realize the fixing beneficial effect between headband and the earmuff.
As preferably, described lead passes in described headband, is provided with the torsion spring that described lead is shunk in the described earmuff.
As preferably, on the outer surface of described earmuff, be provided with elastic sealing ring, described headband passes described elastic sealing ring, and described elastic sealing ring and the sealing of described headband contact.Prevent that foreign matter from entering in the earmuff from the junction of headband and earmuff, sending out in the process that the tip entered, adjusted the earmuff position of user pullled hair in preventing to use, and fail safe is good.
The utlity model has following advantage, by design the adjusting that snap groove is realized the earmuff distance at earmuff indoor design clamping block with in the headband end, increased the external structure that does not influence earphone after the distance adjustment function, and can not produce in moving and pull phenomenon user's hair, so outward appearance is succinct, fail safe is good, comfortableness is good, further design sealing ring, fail safe is further promoted, design annular blimp, blimp is designed to have the structure of sponge inner core and cortex appearance, comfortableness is good when not only wearing, and soundproof effect is good, and the permanent magnet of loud speaker is made with Nd-Fe-B magnet steel, and vibrating diaphragm is made as the PET transparent membrane after 12 microns, tonequality is good, volume switch and mains switch are installed in the front side surface of earmuff, and be easy to use, connects lead the shrinking by torsion spring of electronic component in the earmuff of the left and right sides, in order clean and tidy, can keep good contractive effect for a long time.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further described.
Embodiment one, referring to Fig. 1, the adjustable headphone of a kind of earmuff distance, comprise headband 1, be arranged on a pair of earmuff 2 at two ends, the headband left and right sides, headband 1 is the rubber-like clip, headband 1 is a flat structure of uniform size, earmuff 2 comprises inside cover 21 and outboard cover 22, outboard cover 22 is the spherical crown shape, on that the outboard cover 22 that is positioned at the left side in a pair of earmuff 2 volume switch 23 is installed, mains switch 24 and USB interface 25, volume switch 23 and mains switch 24 are positioned on the rear side surface of earmuff 2, USB interface 25 is positioned on the downside surface of earmuff 2, be connected with the USB interface lid 26 that matches with USB interface 25 on outboard cover 22, inside cover 21 is circular tabular, is provided with annular blimp 27 on the outer surface of inside cover 21.
Referring to Fig. 2, annular blimp 27 circumferentially extends along the edge of inside cover 21, the side away from inside cover of annular blimp is an arcwall face, annular blimp 27 comprises sponge inner core 28 and cortex top layer 29, inside cover 21 is passed the mode and the outboard cover 22 of twisting on three self-tapping screw posts 36 that are connected on the outboard cover 22 behind the connecting hole on it by three self-tapping screws 31 and is linked together, intert in earmuff 2 end of headband 1, on outboard cover 22, be provided with chute 32 for headband 1 slip usefulness, during with respect to earmuff 2 stretchings or extruding headband 1, headband 1 slides in chute 32, make headband 1 be difficult for producing rocking of fore-and-aft direction, audio board 33 is installed in that of the left ear that is positioned at the user when being positioned at user mode in the earmuff 2, battery 34 is installed in that is positioned at user's auris dextra when being positioned at user mode in the earmuff 2, battery 34 is a charged lithium cells, earmuff 2 inside are equipped with loud speaker 35, loud speaker 35 comprises sound basin and vibrating diaphragm, the sound basin is that Nd-Fe-B magnet steel is made, loud speaker 35 is provided with an end of vibrating diaphragm towards inside cover 21, vibrating diaphragm is the PET transparent membrane, the thickness of vibrating diaphragm is 12 microns, lead (be positioned among the figure and draw) is to pass and the electronic component of left and right sides earmuff is electrically connected from headband 1, the mid portion of headband 1 is a camber line shape, two end portions is a linear, the mains switch 24 that is indicated among Fig. 1, volume switch 23 and USB interface 25 be with audio board 33 in electronic component be electrically connected.
Referring to Fig. 3, on the side of the end of headband 1, be provided with 10 buckling grooves 12, buckling groove 12 distributes along the bearing of trend of headband 1, inner surface in outboard cover 22 is provided with the clamping block 4 that matches with buckling groove 12, clamping block 4 is connected in the buckling groove 12, the cell wall shelves of chute 32 are on the trailing flank of headband 1, clamping block 4 is provided with elasticity and connects neck 41, elasticity connects neck 41 and is structure as a whole with clamping block 4, clamping block 4 connects neck 41 elasticity by elasticity and is connected on the inner surface of outboard cover 22, state elasticity connection neck 41 and be locked at by screw 42 on the inner surface of outboard cover 22, the inner surface of outboard cover 22 is provided with three self-tapping screw posts 36.
Because clamping block 4 is that elasticity is connected on the outboard cover 22,, earmuff 2 is stuck on the headband 1 securely so under the effect of chute 32 and clamping block 4, can make and wear 1 and insert earmuff 2 easily or in earmuff 2, extract.
Embodiment two, referring to Fig. 4, with the difference of embodiment one be, between jack of being opened on the outboard cover 22 of earmuff 44 that passes for headband 1 and headband 1 for being tightly connected, make foreign matters in jack 44, enter earmuff inside, clamping block 4 apart from the distance L 2 of the outer face of jack 44 greater than the distance L 1 between two of the head and the tail in the buckling groove 12, buckling groove 12 has only 9 altogether, the degree of depth of buckling groove 12 is less than the thickness of headband 1, make and on headband, formed the step 13 corresponding with buckling groove 12 quantity, when clamping block 4 is connected in the buckling groove 12 and be positioned at the top of step 13, clamping block 4 and chute 32(see Fig. 2 like this) clamp headband from four sides of headband 1, make headband 1 all around direction can not rock, make at headband 1 during with respect to earmuff 2 left Plug Actions, motion is steady, and the two connects reliable.
Embodiment three, referring to Fig. 5, with the difference of embodiment two be, on the outer surface of the outboard cover 22 of earmuff, be provided with elastic sealing ring 45, headband 1 passes in the middle of elastic sealing ring 45, and elastic sealing ring 45 contacts with headband 1 sealing, is structure as a whole between elastic sealing ring 45 and the outboard cover 22, be matched in clearance between headband 1 and the jack 44, so plug is easily laborsaving during headband 1.
Embodiment four, referring to Fig. 6, with the difference of embodiment three be, the outboard cover 22 of earmuff is provided with spacing hole 46, clamping block 4 is by spring 47 and outboard cover 22 elasticity connection mutually, one end of spring 47 is welded on the clamping block 4, the other end of spring 47 is located in the spacing hole 46, the end of spring 47 is connected on the diapire of spacing hole 46, lead 5 passes the back by being connected behind the torsion spring 6 on the audio board 33 from headband 1, torsion spring 6 is enclosed within on the fixed leg 48, and the A of lead 5 end is fixed on the headband 1, and the B of lead 5 end is fixed on the outboard cover 22.
Referring to Fig. 7, torsion spring 6 is made by hollow spring wire, one end of torsion spring 6 is connected with a reel 61, the other end of torsion spring 6 is fixed on the outboard cover 22, reel 61 and torsion spring 5 all are socketed on the fixed leg 48, lead 5 passes and is wrapped on the reel 61 in spring wire, because of the side a and b of lead 5 is separately fixed on headband 1 and the outboard cover 2, so when headband 1 becomes big with respect to the distance of earmuff, lead 5 can drive that reels 61 rotate and torsion spring 6 distortion are big with the change that adapts to distance, and when headband 1 diminished with respect to the distance of earmuff, torsion spring 6 can restore to the original state and also drive reel 61 counter-rotatings, lead 5 is rolled, to adapt to reducing of distance.