CN202616099U

CN202616099U - Button waterproof structure

Info

Publication number: CN202616099U
Application number: CN 201220293534
Authority: CN
Inventors: 周勇
Original assignee: Shanghai Simcom Wireless Solutions Co Ltd
Current assignee: Shanghai Simcom Wireless Solutions Co Ltd
Priority date: 2012-06-20
Filing date: 2012-06-20
Publication date: 2012-12-19
Anticipated expiration: 2022-06-20

Abstract

The utility model discloses a button waterproof structure which comprises a shell comprising a groove, a first through hole, an elastic structural part, a waterproof ring and a button body. The button body comprises a button cap, a button stand column fixed at the bottom of the button cap, and a bayonet part, wherein the button stand column penetrates through the elastic structural part, the waterproof ring and the first through hole in sequence. One part of the button cap is arranged inside the groove, and the other part of the button cap protrudes from the outer surface of the shell, and the waterproof ring is pressed at the bottom of the groove tightly. The bayonet part is arranged at one end of the button stand column in detachable mode, the end of the button stand column is far away from the button cap, and the portion of the bayonet part, protruded from the button stand column, is completely covered on the first through hole and attached to the inner face of the shell tightly to achieve the waterproof purpose. Compared with the prior art, the button waterproof structure is detachable, beautiful, capable of achieving convenience of button replacement, and low in cost.

Description

Key water-proof structure

Technical field

The utility model relates to a kind of electronic equipment, particularly a kind of key water-proof structure of electronic equipment.

Background technology

It all is to adopt double-shot moulding that button is followed the one-body molded purpose that reaches waterproof of plastic cement shell that a lot of waterproof constructions are arranged now.The dijection moulding mainly cooperates two molds to process bijective product through twice moulding sequentially with two material pipes of dijection make-up machine.At present, double-shot moulding has been widely applied to electronic product, electric tool, medical product, household electrical appliances, the plastic cement field that toy or the like is nearly all.Yet double-shot moulding has than limitations when appearance design.Secondly, this waterproof construction is not easy to the replacing of button.When producing slot between button self or button and the housing, need change button and housing simultaneously, could continue to keep water-proof function.Simultaneously, the double-color mold cost is also higher.

The utility model content

The technical problem that the utility model will solve be for overcome the prior art profile not attractive in appearance, change button inconvenience and the higher defective of cost, a kind of dismountable key water-proof structure is provided.

The utility model solves above-mentioned technical problem through following technical proposals:

A kind of key water-proof structure; It comprises a housing; Said housing comprises a groove and one first through hole that is communicated with said bottom portion of groove and shell inner surface; Its characteristics are, said key water-proof structure also comprise one have one second through hole elastic structure, have the water proof ring and a keying body of a third through-hole, said keying body comprises that a keycap, is fixed in the button column and bayonet socket parts of said keycap bottom.Wherein, said water proof ring is arranged at said bottom portion of groove, and said elastic structure is arranged on the said water proof ring.Said button column runs through said second through hole, third through-hole and first through hole in proper order, and the part of said keycap is arranged in the said groove, and another part protrudes in said housing outer surface.Said elastic structure is in preloading condition, and said water proof ring is pressed in said bottom portion of groove.Said bayonet socket parts are removable installed in the end away from said keycap of said button column, and its part that extends outward from said button column covers said first through hole fully, and is close to said shell inner surface.

Preferably, the size and the shape of said first through hole and third through-hole are identical.Can further improve the performance of waterproof like this.

Preferably, said bayonet socket parts comprise that one is arranged at bayonet slot and the bayonet socket pad corresponding with said bayonet slot on the said button column.Like this, just can carry out the dismounting of button, simplify the step of changing the button that damages as long as extract said bayonet socket pad.

Preferably, said elastic structure is processed by silica gel or rubber.

Preferably, said elastic structure comprises a spring and a pad, and wherein, said pad is arranged at said spring bottom.

The positive progressive effect of the utility model is:

Said key water-proof structure is dismountable, thereby housing can separate moulding with button, has reduced the difficulty of manufacturing process, has alleviated cost.In addition, when a button damages, need not change housing and all buttons, and only need change the water resistance that impaired button just can continue to keep complete machine.Dismountable key water-proof structure also makes button can be independent of the design of housing, when appearance design, obtains more the selection, increases aesthetic property.

Description of drawings

Fig. 1 is the vertical view of the utility model one embodiment.

Fig. 2 is the cutaway view of the utility model one embodiment.

Fig. 3 is the explosive view of the utility model one embodiment.

Embodiment

Provide the utility model preferred embodiment below in conjunction with accompanying drawing, to specify the technical scheme of the utility model.

In conjunction with referring to figs. 1 through Fig. 3, the key water-proof structure of the utility model comprises a housing 1, and it can be housing or other housings of handheld device.Housing 1 comprises an outer surface 11, a groove 12, a through hole 13 and an inner surface 14.Wherein, housing 1 can have a plurality of grooves and through hole, below is that example describes with a groove 12 and a through hole 13 only.

The key water-proof structure of present embodiment also comprise one have a through hole 33 elastic structure and have the water proof ring 4 of a through hole 41.It is the silica gel material making of 30 degree that water proof ring 4 can adopt hardness.In the present embodiment, said elastic structure is made up of a spring 31 and a pad 32.More even for the pressure that makes 31 pairs of water proof rings 4 of spring, the thickness of pad can be set to 0.2 millimeter.Though do not draw in the accompanying drawings, said elastic structure also can be to be processed by silica gel, rubber or other rubber-like material.Will be understood that; Identical with the combination role of present embodiment medi-spring 31 and pad 32 elastic structure that is made up of the rubber-like material is a spring 31 and the equivalent feature of the combination of pad 32, below describes with the example that is combined as of spring 31 and pad 32.

Said key water-proof structure also comprises a keying body 2, and it comprises that a keycap 21, is fixed in the button column 22 and bayonet socket parts of keycap 21 bottoms.In the present embodiment, said bayonet socket parts are made up of a bayonet slot 23 and a bayonet socket pad 24.Said bayonet socket parts can also be made up of other parts, like screw thread and nut etc.Will be understood that identical with bayonet socket pad 24 roles with bayonet slot in the present embodiment 23 bayonet socket parts that are made up of other parts are bayonet slot 23 and the equivalent feature of bayonet socket pad 24, below is that example describes with bayonet slot 23 with bayonet socket pad 24.

When the key water-proof structure of present embodiment was installed, water proof ring 4 was arranged at the bottom of groove 12, and pad 32 is arranged on the water proof ring 4, and spring 31 is arranged on the pad 32.Button column 22 orders run through through hole 33, through hole 41 and through hole 13.The part of keycap 21 is arranged in the groove 12, and another part protrudes in the outer surface 11 (with reference to Fig. 2) of housing 1.Bayonet slot 23 is arranged at the end of button column 22 away from keycap 21, and gives prominence to the inner surface 14 of housing 1 just.After bayonet socket pad 24 inserted bayonet slot 23, bayonet socket pad 24 can cover through hole 13 fully from the part that button column 22 extends outward, and is close to the inner surface 14 of housing 1.Through a suitable length being set for button column 22, the springs 31 in the groove 12 are in preloading condition, and are pressed in the bottom of groove 12 to water proof ring 4 through pad 32, thereby reach the purpose of waterproof.

In order to reach better waterproof effect, pre compressed magnitude that can spring 31 is set to 0.5 millimeter, and its maximum amount of contracting is set to 1.5 millimeters.When keying body 2 was pressed, spring 31 obtained said maximum compressibility.When keying body was not received external force, spring 31 still had 0.5 millimeter pre compressed magnitude, made water proof ring 4 be in compacted at any time and states groove 12 bottoms, thereby reached the waterproof purpose.In addition, can also adjust the button feel through the adjustment decrement.When elastic structure is processed by silica gel, rubber or other rubber-like material, the pre compressed magnitude and the maximum compressibility of said elastic structure also can be set, and adjust the button feel through the decrement of adjusting said elastic structure.

In order further to improve water resistance, can through hole 13 and the size of through hole 41 and shape be set to identically, and cross sectional shape and the through hole 13 of button column 22 and through hole 41 are fitted fully.

Though more than described the embodiment of the utility model, it will be understood by those of skill in the art that these only illustrate, the protection range of the utility model is limited appended claims.Those skilled in the art can make numerous variations or modification to these execution modes under the prerequisite of principle that does not deviate from the utility model and essence, but these changes and modification all fall into the protection range of the utility model.

Claims

1. key water-proof structure; It comprises a housing; Said housing comprises a groove and one first through hole that is communicated with said bottom portion of groove and shell inner surface; It is characterized in that, said key water-proof structure also comprise one have one second through hole elastic structure, have the water proof ring and a keying body of a third through-hole, said keying body comprises that a keycap, is fixed in the button column and bayonet socket parts of said keycap bottom;

Wherein, Said water proof ring is arranged at said bottom portion of groove, and said elastic structure is arranged on the said water proof ring, and said button column runs through said second through hole, third through-hole and first through hole in proper order; The part of said keycap is arranged in the said groove; Another part protrudes in said housing outer surface, and said elastic structure is in preloading condition, and said water proof ring is pressed in said bottom portion of groove;

Said bayonet socket parts are removable installed in the end away from said keycap of said button column, and its part that extends outward from said button column covers said first through hole fully, and is close to said shell inner surface.

2. key water-proof structure as claimed in claim 1 is characterized in that, the size and the shape of said first through hole and third through-hole are identical.

3. key water-proof structure as claimed in claim 1 is characterized in that, said bayonet socket parts comprise that one is arranged at bayonet slot and the bayonet socket pad corresponding with said bayonet slot on the said button column.

4. like each described key water-proof structure among the claim 1-3, it is characterized in that said elastic structure is processed by silica gel or rubber.

5. like each described key water-proof structure among the claim 1-3, it is characterized in that said elastic structure comprises a spring and a pad, wherein, said pad is arranged at said spring bottom.