Key device and electronic equipment comprising it
Technical field
The present invention relates to a kind of key device and include its electronic equipment.
Background technique
Generally on the electronic equipments such as wrist-watch, bracelet, since inner space itself is smaller, key is substantially circle, interior
Portion's structure is in order to save space.The inside specific structure of key presses the button as shown in Figure 1, offer through-hole 11 ' on shell 1 '
Ontology 2 ', the socket cap 21 ' of keying body 2 ' will press the key device 10 ' on mainboard, to realize that the function of key is made
With.After unclamping keying body 2 ', under the active force of spring 4 ', keying body 2 ' is restored to original position, and retaining ring 5 ' is used to
The home position of control button ontology 2 ', sealing ring 3 ' ensure that keying body 2 ' during the motion, and water and moisture will not be into
Enter internal to shell 1 '.Due to needing the setting of sealing ring 3 ' on the inner peripheral surface of keying body 2 ' and the through-hole 11 ' of shell 1 '
Guarantee the sealing performance of electronic equipment, therefore relatively high to 11 ' requirement on machining accuracy of the through-hole of shell 1 '.Shell 1 ' is using normal
Rule metal and plastic cement can satisfy requirement on machining accuracy, since the machining accuracy of the through-hole 11 ' of shell 1 ' is high, ensure that and key
The motion profile of ontology 2 ', and the assembly precision between the inner wall and socket cap 21 ' of through-hole 11 ' can also by sealing ring 3 '
Reach the requirement of sealing.But when the material of shell 1 ' using ceramics, similar to ceramics or the processing for being limited to material itself
Technique and when being unable to reach high-precision special shell material, the shell 1 ' of low precision can not but reach wanting for sealing using the method
It asks.Meanwhile shell 1 ' and the motion profile of keying body 2 ' are limited, or even can not stablize the function of ensuring key.
Summary of the invention
The technical problem to be solved by the present invention is in order to overcome the material of existing shell using ceramics, be similar to ceramics or
When being limited to the processing technology of material itself and being unable to reach high-precision special shell material, it is unable to reach the requirement of sealing, even
The defect for ensuring the function of key can not be stablized, a kind of key device and the electronic equipment comprising it are provided.
The present invention is to solve above-mentioned technical problem by following technical proposals:
A kind of key device comprising shell and keying body have through-hole on the shell, it is characterized in that, it is described
Key device further includes sleeve, and the sleeve is located in the through-hole, and the outside wall surface of the sleeve is sealedly attached to the shell
Body, the keying body are slidedly arranged in the sleeve, and are mutually sealed between the keying body and the inner wall of the sleeve.
In the present solution, form using the above structure is effectively protected by being arranged sleeve between shell and keying body
The reliability of keying body function is demonstrate,proved, and the sealing performance of key device is effectively ensured.Meanwhile reducing key device in mould
The difficulty of factory's assembling, promotes yield.
Preferably, the keying body includes keypad and socket cap, the keypad is located at outside the shell, described to press
Guide groove is offered towards the side of the shell in keypad, one end of the socket cap is inserted into the guide groove and is connected to
The keypad, the other end of the socket cap pass through the through-hole and are slidedly arranged in the sleeve, described in the sleeve insertion
In guide groove and can in the guide groove Relative sliding.
In the present solution, form, guide groove have guide and limit effect, effectively prevent keying body using the above structure
Offset inconsistent phenomenon is generated during use, substantially increases the stability of key device.
Preferably, the sleeve includes the first cylinder and the second cylinder, second cylinder is inserted into the through-hole, institute
It states the first cylinder to be located at outside the shell, and first cylinder is connected to the end of second cylinder and along described second
The radial direction of body extends outwardly protrusion, and first cylinder is resisted against the outside wall surface of the shell.
In the present solution, form, the first cylinder play position-limiting action using the above structure, keying body is in the process pressed
In, the first cylinder will be resisted against shell and sleeve will not be moved along the direction close to key device, improve key dress
The stability set.
Preferably, the inner wall of second cylinder have along second cylinder radial direction extend internally protrusion
Lug boss, the key device further include spring, and the spring pocket is set to the socket cap, and the both ends of the spring are supported respectively
It is against the lug boss and the keypad.
In the present solution, form using the above structure, during pressing, spring will be compressed keying body, be made
It obtains spring abutment action power and applies the active force along the direction close to key device in lug boss and to sleeve, pass through the first cylinder
Limit will prevent the movement of sleeve;Keying body during release, spring by active force and lug boss and keypad,
Under the active force of spring, so that keying body moves and restores to original state along the direction far from key device.
Preferably, the socket cap passes through and is slidedly arranged on first cylinder and second cylinder, first cylinder
Be inserted into the guide groove and can in the guide groove Relative sliding.
Preferably, the key device further includes the first sealing ring, the first sealing ring pressure is set to the keying body
Between the sleeve.
In the present solution, form, the first sealing ring have the function of waterproof sealing, keying body and sleeve using the above structure
Between by the first sealing ring realize sealing.
Preferably, being connected between the sleeve and the shell by sealant;
And/or the inner wall of the through-hole offers the outwardly extending seal groove of radial direction along the through-hole, it is described
Key device further includes the second sealing ring, and second sealing ring is inserted into the seal groove, and the second sealing ring pressure is set
Between the sleeve and the shell.
In the present solution, form using the above structure, is fixed by dispensing again between the outside and shell of sleeve, assemble non-
It is often convenient, promote the yield of key device.
In addition, the second sealing ring has the function of waterproof sealing, sealing is realized by the second sealing ring between sleeve and shell,
Effectively strengthen the sealing effect between sleeve and shell.
Preferably, the material of the sleeve is plastics.
In the present solution, form using the above structure, has toughness with shell since plastics itself are opposite, even if shell
Precision be not it is very high, can also be installed in shell well using the toughness of plastic cement, ensure that the reliability of key device.
Preferably, the key device further includes retaining ring, the retaining ring is located in the shell, and the retaining ring is connected to
The keying body is simultaneously resisted against the sleeve.
A kind of electronic equipment, it is characterized in that comprising key device as described above.
In the present solution, form using the above structure, by being arranged sleeve between shell and keying body, and sleeve
It is mutually sealed with shell and keying body respectively, the reliability of keying body function is effectively ensured, and electronic equipment is effectively ensured
Sealing performance.
On the basis of common knowledge of the art, above-mentioned each optimum condition, can any combination to get each preferable reality of the present invention
Example.
The positive effect of the present invention is that:
Key device of the invention and the electronic equipment comprising it, by by sleeve setting shell and keying body it
Between, the reliability of keying body function is effectively ensured, and the sealing performance of key device is effectively ensured.
Detailed description of the invention
Fig. 1 is the schematic diagram of internal structure of the key of the prior art.
Fig. 2 is the schematic diagram of internal structure of the key device of the embodiment of the present invention.
The description of symbols of background technique:
Shell 1 '
Through-hole 11 '
Keying body 2 '
Socket cap 21 '
Sealing ring 3 '
Spring 4 '
Retaining ring 5 '
Key device 10 '
The description of symbols of specific embodiment:
Shell 1
Through-hole 11
Keying body 2
Keypad 21
Guide groove 211
Socket cap 22
Sleeve 3
First cylinder 31
Second cylinder 32
Lug boss 321
Spring 4
First sealing ring 5
Retaining ring 6
Key device 10
Specific embodiment
Illustrate below by the mode of embodiment and completely the present invention in conjunction with attached drawing to become apparent from, but therefore not incite somebody to action this
It invents among the scope of embodiments being limited in.
As shown in Fig. 2, the key device of the embodiment of the present invention includes shell 1, keying body 2 and sleeve 3, have on shell 1
There is through-hole 11, sleeve 3 is located in through-hole 11, and the outside wall surface of sleeve 3 is sealedly attached to shell 1, and keying body 2 is slidedly arranged on sleeve
In 3, and mutually sealed between keying body 2 and the inner wall of sleeve 3.By increase sleeve 3 and by sleeve 3 setting shell 1 with
Between keying body 2, and sleeve 3 is sealed with shell 1 and 2 phase of keying body respectively, and the reliable of 2 function of keying body is effectively ensured
Property, and the sealing performance of key device is effectively ensured.Wherein, it can first be fitted together between keying body 2 and sleeve 3
It is made into individual key mould group, whole key mould is assembled into shell 1 after producer will be assembled into supplied materials, reduces key device in mould factory
The difficulty of assembling promotes yield.
Keying body 2 includes keypad 21 and socket cap 22, and keypad 21 is located at outside shell 1, towards shell in keypad 21
The side of body 1 offers guide groove 211, and one end insertion guide groove 211 of socket cap 22 is interior and is connected to keypad 21, socket cap
22 other end is passed through and through-hole 11 and is slidedly arranged in sleeve 3, sleeve 3 be inserted into guide groove 211 and can in guide groove 211 phase
To sliding.Key device when in use, by apply active force on keypad 21 so that keying body 2 be moved to the left and by
Key device 10 on lower mainboard, so that key device works, after unclamping and no longer applying active force to keypad 21, key
Ontology 2 and key device 10 return back to original state.Keying body 2 is during use relative to sleeve 3 along the axis of sleeve 3
Mobile to direction, guide groove 211 has guide and limit effect, and sleeve 3 is inserted into guide groove 211 and the phase in guide groove 211
To sliding, effectively prevents keying body 2 and generate offset inconsistent phenomenon during use, substantially increase key device
Stability.
Sleeve 3 includes the first cylinder 31 and the second cylinder 32, and the second cylinder 32 is inserted into through-hole 11, the first cylinder 31
In outside shell 1, and the first cylinder 31 is connected to the end of the second cylinder 32 and extends outwardly along the radial direction of the second cylinder 32
Protrusion, the first cylinder 31 are resisted against the outside wall surface of shell 1.First cylinder 31 is identical as the internal diameter of the second cylinder 32, the first cylinder
31 outer diameter is greater than the outer diameter of the second cylinder 32, so that the first cylinder 31 is resisted against the outside wall surface of shell 1, the first cylinder 31 is played
Position-limiting action, during pressing, the first cylinder 31 will be resisted against shell 1 and make sleeve 3 will not be along leaning on keying body 2
The direction of nearly key device 10 is mobile, improves the stability of key device.
The inner wall of second cylinder 32 have along the second cylinder 32 radial direction extend internally protrusion lug boss 321,
Key device further includes spring 4, and spring 4 is sheathed on socket cap 22, and the both ends of spring 4 bear against in lug boss 321 and by
Keypad 21.During pressing, spring 4 will be compressed keying body 2, so that 4 abutment action power of spring is in lug boss 321
And the active force along the direction close to key device 10 is applied to sleeve 3, sleeve 3 will be prevented by the limit of the first cylinder 31
It is mobile;For keying body 2 during release, spring 4 is by active force and lug boss 321 and keypad 21, in the effect of spring 4
Under power, so that keying body 2 moves along the direction far from key device 10 and restores to original state.
Socket cap 22 passes through and is slidedly arranged on the first cylinder 31 and the second cylinder 32, and the first cylinder 31 is inserted into guide groove 211
And can in guide groove 211 Relative sliding.First cylinder 31 is identical with the internal diameter of the second cylinder 32, and socket cap 22 will be first
Sliding in cylinder 31 and the second cylinder 32, the first cylinder 31 have guide and limit effect with guide groove 211, pass through guide groove 211
Be sheathed on the first cylinder 31 and relative to the first cylinder 31 slide, guarantee keying body 2 along sleeve 3 move axially, improve by
The reliability of key apparatus.
The material that shell 1 uses can be non-plastic cement, the very gauge material such as ceramics of metal.By increasing sleeve 3, meet
The function of the keying body 2 of normal use, and ensure that the sealing performance of key device.The material of sleeve 3 can be modeling
Material has toughness with shell 1 since plastics itself are opposite, though the precision of shell 1 be not it is very high, also can using the toughness of plastic cement
It installs in shell 1 well, ensure that the reliability of key device.Meanwhile key device of the present invention has passed through test verifying,
As a result concept feasible is effective.
Key device further includes the first sealing ring 5, and the first sealing ring 5 pressure is set between keying body 2 and sleeve 3.First
Sealing ring 5 has the function of waterproof sealing, realizes sealing by the first sealing ring 5 between keying body 2 and sleeve 3.Wherein, first
Sealing ring 5 can ensure that the first sealing ring 5 will not generate shifting during use between spring 4 and lug boss 321
It moves and influences leakproofness.The quantity of first sealing ring 5 is not construed as limiting.
In the present embodiment, can be connected by sealant between sleeve 3 and shell 1.By sleeve 3 and keying body 2
It fits together, will integrally be inserted into shell 1 later, fixed again by dispensing between the outside and shell 1 of sleeve 3, assembled
It is very convenient, promote the yield of key device.
Certainly, in other embodiments, can also be sealed using sealing ring between sleeve 3 and shell 1.That is through-hole 11
Inner wall offers the outwardly extending seal groove of radial direction along through-hole 11, and key device further includes the second sealing ring, and second
Sealing ring is inserted into seal groove, and the second sealing ring pressure is set between sleeve 3 and shell 1.Second sealing ring has waterproof sealing
Function realizes sealing by the second sealing ring between sleeve 3 and shell 1, effectively strengthens the sealing between sleeve 3 and shell 1
Effect.
Key device further includes retaining ring 6, and retaining ring 6 is located in shell 1, and retaining ring 6 is connected to keying body 2 and is resisted against set
Cylinder 3.Retaining ring 6 has barrier effect, restores for control button device to original state.
The embodiment of the invention also discloses a kind of electronic equipment, which includes key device as described above.It is logical
It crosses and sleeve 3 is arranged between shell 1 and keying body 2, and sleeve 3 is sealed with shell 1 and 2 phase of keying body respectively, effectively
Guarantee the reliability of 2 function of keying body, and the sealing performance of electronic equipment is effectively ensured.
Although specific embodiments of the present invention have been described above, it will be appreciated by those of skill in the art that this is only
For example, protection scope of the present invention is to be defined by the appended claims.Those skilled in the art without departing substantially from
Under the premise of the principle and substance of the present invention, many changes and modifications may be made, but these change and
Modification each falls within protection scope of the present invention.