CN209184775U - A kind of pivot structure and earphone - Google Patents

Abstract

A kind of pivot structure of the utility model and earphone, the second folding arm for including the first folding arm and being rotatably arranged on the first folding arm, second folding arm end is provided with axle bed, the rotating assembly that may make the second folding arm to stop at an arbitrary position is provided between first folding arm and axle bed, the rotating assembly includes wear plate and cushion compound, the axle bed at least side is provided with embedding slot, the wear plate and cushion compound are successively set in the embedding slot, the cushion compound and the embedding slot tight fit, flexible glue part two sides are born against on the wear plate and the first folding arm inner sidewall.Solving the problem of the pivot structure occupied space in the prior art for being parked in any position by the utility model, big structure is complicated.

Description

A kind of pivot structure and earphone

Technical field

The utility model relates to a kind of pivot structure and earphones.

Background technique

Tradition pivot structure in the prior art is to realize that shaft can stop at an arbitrary position in rotation, and usual structure is multiple It is miscellaneous, need by pivot design be a modular structure, inside connected and composed by multiple components such as shaft, spring, assembly when It is also required to occupy biggish space, structure limited for assembly space is not able to satisfy assembly demand.For example, wearing ear now The trend of machine development is plastic simplicity, frivolous, and traditional shaft scheme is unable to satisfy the need in the space of limitation, succinct moulding It asks.

Utility model content

The utility model provides a kind of pivot structure, solves the pivot structure in the prior art for being parked in any position and accounts for It is big with space, the problem of structure is complicated.

To achieve the purpose that solve above-mentioned technical problem, the pivot structure that the utility model is proposed uses following technical side Case is achieved:

The second folding arm that a kind of pivot structure includes the first folding arm and is rotatably arranged on the first folding arm, in the second folding Arm end is provided with axle bed, and the shaft group that may make the second folding arm to stop at an arbitrary position is provided between the first folding arm and axle bed Part, the rotating assembly include wear plate and cushion compound, and the axle bed at least side is provided with embedding slot, the wear plate and soft Film is successively set in the embedding slot, and the cushion compound and the embedding slot tight fit, flexible glue part two sides are supported respectively It leans against on the wear plate and the first folding arm inner sidewall.

The utility model further includes following additional technical feature:

It further, further include having connecting shaft, the connecting shaft is inserted after sequentially passing through the first folding arm, cushion compound, wear plate In second folding arm.

Further, the rotating assembly is provided in the two sides of the axle bed.

Further, cooperate between the wear plate and embedding slot for point contact.

Further, the embedding slot includes slot bottom and groove sidewall, is provided with raised points on the slot bottom.

Further, first is provided on the wear plate to pass through hole, be provided with second on the flexible glue part and pass through Hole.

Further, wear plate material is POM, cushion compound material TPU.

The utility model also proposes a kind of earphone, and the auricular concha at portion both ends is worn including the portion of wearing and being arranged in, further include on State pivot structure described in technical solution, the auricular concha/portion's of wearing connection of the first folding arm and earphone, the second folding arm correspondence and earphone The portion of wearing/auricular concha connection.

There are following advantages and good effect for the utility model:

The utility model proposes a kind of pivot structure, include the first folding arm and be rotatably arranged on the first folding arm second Folding arm is provided with axle bed in the second folding arm end, is provided between the first folding arm and axle bed and may make the stop of the second folding arm in office The rotating assembly of meaning position, the rotating assembly includes wear plate and cushion compound, and embedding slot is provided on the axle bed, described resistance to Grinding and cushion compound are successively set in the embedding slot, the cushion compound and the embedding slot tight fit, the flexible glue part two Side is born against on the wear plate and the first folding arm inner sidewall.Due in the utility model the second folding arm and cushion compound it Between be tight fit, can when rotate the second folding arm so that cushion compound along wear plate and the first folding arm sidewall friction rotation, pass through Cushion compound rotates so that the second folding arm correspondence can carry out the bending rotation of certain angle, while pass through two rubbing in face of cushion compound When wiping power effect may be implemented in stopping to the second folding arm rotary action power, it stop it can at an arbitrary position, entire pivot structure Simply, and rotating assembly is to embed to be assemblied in embedding slot, occupies little space, is applicable to small space pivot axis installation requirements.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model pivot structure；

Fig. 2 is the structural exploded view of the utility model pivot structure；

Fig. 3 is the full sectional view of the utility model pivot structure.

Specific embodiment

The technical solution of the utility model is described in further detail with reference to the accompanying drawings and detailed description, this Utility model proposes a kind of embodiment of pivot structure, includes the first folding arm 100 and rotation setting referring to Fig.1 shown in-Fig. 3 The second folding arm 200 on the first folding arm 100, the pivot structure in the present embodiment can be used in headphone, the first folding arm 100 The earphone wearing portion that wears can be connected, the second folding arm 200 can connect the auricular concha of headphone, be provided in 200 end of the second folding arm Axle bed 500, it is preferred that axle bed 500 and the second folding arm 200 are integrally formed, and are provided between the first folding arm 100 and axle bed 500 The second folding arm 200 may make to stop rotating assembly 300 at an arbitrary position.Specifically, the rotating assembly 300 in the present embodiment wraps Wear plate 310 and cushion compound 320 are included, embedding slot 210 is provided on the axle bed 500, axle bed 500 can be correspondingly arranged at Embedding slot 210 is set simultaneously on side side wall or two sides side wall, is not particularly limited herein, it is preferred that in institute in the present embodiment The two sides for stating axle bed 200 are provided with embedding slot 210, and rotating assembly 300 is assembled in two sides, same in rotation process to guarantee Step property and stationarity prevent from being only arranged at one end rotating assembly since unbalance stress causes rotating shaft is laborious inconvenient to ask Topic.

The wear plate 310 and cushion compound 320 are successively set in the embedding slot 210, after the assembly is completed, wear plate 310 two sides are contacted with cushion compound 320 and embedding slot 210 respectively, the cushion compound 320 and 210 tight fit of embedding slot, institute 320 two sides of flexible glue part are stated to bear against on 100 inner sidewall of the wear plate 310 and the first folding arm.

Between the first folding arm 100 and cushion compound 320, between wear plate 310 and cushion compound 320, wear plate 310 and be embedded in There are frictional force on contact side between slot 210, when not carrying out the rotation of the second folding arm 200, above-mentioned component two-by-two it Between be stiction, due to wear plate 310 be surface smooth abrasion-proof material, be in contact with it the friction of the object of cooperation between the two Factor its certainly less than the friction factor between the first folding arm 100 and cushion compound 320, the normal pressure for generating frictional force is by the One folding arm 100 is applied to the clamping force on cushion compound 320, and direction is the axis direction along embedding slot 210, and this normal pressure exists Between size and cushion compound between cushion compound 320 and the first folding arm 100 and wear plate 310, wear plate 310 and embedding slot 210 Size it is identical, since friction factor difference then makes frictional force between embedding slot 210,310 contact surface of wear plate, wear plate Frictional force between 310 and cushion compound is less than the frictional force between the first folding arm 100 and cushion compound 320.

Pivot structure in the present embodiment when in use, can be by applying force to the second folding arm 200, the second folding arm 200 rotary action power can be transmitted on the cushion compound 320 with its tight fit, and 320 both ends of cushion compound are born against in wear plate 310310 and first on folding arm 100, when rotatory force is larger, may make cushion compound 320 to overcome and the first folding arm 100 and wear plate Frictional force effect and the second folding arm 200 between 310 rotate together, simultaneously because 320 two sides of cushion compound are by frictional force Effect can be due to two frictional force in face of cushion compound 320, so that flexible glue when stopping applying active force to the second folding arm 200 Piece 320 and with its equal stop motion of the second folding arm of tight fit, and then stop the second folding arm 200 can at an arbitrary position, it is final real Existing second folding arm 200 with turning with stopping.Entire pivot structure in the utility model is simple and rotating assembly 300 is embedded assembly It in embedding slot 210, occupies little space, is applicable to small space pivot axis installation requirements.

When the rotatory force being applied on the second folding arm 200 is smaller, it may make cushion compound 320 that can not overcome and first Frictional force between folding arm 100, at this point, can then reverse cushion compound 320 when the second folding arm 200 of rotation, the side of cushion compound 320 has Frictional force effect can not rotate, and the other side relative wear piece 310 or embedding slot 210 under the drive of the second folding arm 200 rotate, that is, It can make if when frictional force between wear plate 310 and cushion compound 320 is greater than frictional force between wear plate 310 and embedding slot 210 Cushion compound 320 drives wear plate 310 to rotate relative to embedding slot 210, if frictional force is less than between wear plate 310 and cushion compound 320 320 relative wear piece 310 of cushion compound can be then made to rotate between wear plate 310 and embedding slot 210 when frictional force, by increasing by one 310 structure of wear plate can subtract so that making the other side of cushion compound that can overcome friction masterpiece sliding when rotating the second folding arm 200 It is required when carrying out rotation and adjusting less to be firmly convenient for adjusting, at the same time it can also mitigate the torsional capacity of cushion compound 320, improve flexible glue The service life of piece 320.

It further, further include having connecting shaft 400, the connecting shaft 400 sequentially passes through the first folding arm 100100, cushion compound 320, it is inserted into after wear plate 310310 in the axle bed 500, realizes the second folding arm 200 relative to the first folding arm 100100 Rotation.

Preferably, cooperate between the wear plate 310 and embedding slot 210 for point contact, it is preferred that the embedding slot 210 Including slot bottom and groove sidewall, the slot bottom is provided with raised points 211, the wear plate 310 passes through its side and the protrusion Point 211 is engaged, and raised points 211 can use circular protrusions point, triangular hill point or arc convex point, herein not Concrete restriction is done, raised points 211 can be uniformly arranged on slot bottom bottom surface, by the way of the cooperation of raised points 211, due to face-to-face The mode processing technology being engaged is difficult, and not can guarantee machine-shaping is to be engaged face-to-face, and point is used in the present embodiment Face contact fit system, facilitates technological forming to process.

Further, wear plate 310, cushion compound 320 are passed through for convenience of connecting shaft 400, be arranged on the wear plate 310 There is first to pass through hole 311, be provided with second across hole 321 on the flexible glue part 320.

Preferably, 310 material of wear plate is POM, 320 material TPU of cushion compound.

Also propose a kind of earphone in the present embodiment, the auricular concha at portion both ends worn including the portion of wearing and being arranged in, further include on State pivot structure described in technical solution, the auricular concha/portion's of wearing connection of the first folding arm and earphone, the second folding arm correspondence and earphone The portion of wearing/auricular concha connection.

Above embodiments are only to illustrate the technical solution of the utility model, rather than are limited；Although referring to before Embodiment is stated the utility model is described in detail, it for those of ordinary skill in the art, still can be right Technical solution documented by previous embodiment is modified or equivalent replacement of some of the technical features；And these Modifications or substitutions, the utility model technical solution claimed that it does not separate the essence of the corresponding technical solution spirit and Range.

Claims (8)

1. The second folding arm that 1. a kind of pivot structure includes the first folding arm and is rotatably arranged on the first folding arm, which is characterized in that Second folding arm end is provided with axle bed, is provided between the first folding arm and axle bed and the second folding arm may make to stop at an arbitrary position Rotating assembly, the rotating assembly includes wear plate and cushion compound, and the axle bed at least side is provided with embedding slot, described resistance to Grinding and cushion compound are successively set in the embedding slot, the cushion compound and the embedding slot tight fit, the flexible glue part two Side is born against on the wear plate and the first folding arm inner sidewall.
2. 2. pivot structure according to claim 1, which is characterized in that further include having connecting shaft, the connecting shaft is successively worn It is inserted into second folding arm after crossing the first folding arm, cushion compound, wear plate.
3. 3. pivot structure according to claim 1, which is characterized in that be provided with the shaft in the two sides of the axle bed Component.
4. 4. pivot structure according to claim 1, which is characterized in that match between the wear plate and embedding slot for point contact It closes.
5. 5. pivot structure according to claim 4, which is characterized in that the embedding slot includes slot bottom and groove sidewall, in institute It states slot bottom and is provided with raised points.
6. 6. pivot structure according to claim 1, which is characterized in that be provided on the wear plate first pass through hole, It is provided with second on the flexible glue part and passes through hole.
7. 7. pivot structure according to claim 1, which is characterized in that wear plate material is POM, cushion compound material TPU.
8. 8. a kind of earphone, the auricular concha at portion both ends is worn including the portion of wearing and being arranged in, which is characterized in that further include claim 1- The auricular concha of 7 described in any item pivot structures, the first folding arm and earphone/portion's of wearing connection, the corresponding head with earphone of the second folding arm The portion of wearing/auricular concha connection.