CN203721573U - Computer key capable of preventing key sticking - Google Patents

Abstract

The utility model relates to a computer key capable of preventing key sticking. The computer key comprises a keycap cover and a keycap pedestal; a contact block is arranged at the inner side of the keycap cover; and the keycap pedestal supports the keycap cover and has a circuit hole. The contact block in a hollow shape can be accommodated into the circuit hole; a contact head is sleeved at the end portion and can pass through the circuit hole; and a contact element that can press the contact head is arranged at the inner wall of the contact block. A reset element enabling the contact block and the contact head to be reset is arranged between the contact block and the keycap pedestal. According to the scheme, the inside of the contact block is hollow and the contact head is sleeved at the end portion; the contact element arranged at the inner wall of the contact block is used for pressing the contact head and the reset element is used for resetting the contact block and the contact head instead of using the elasticity of the contact block itself to realize resetting. Even when the keycap cover is pressed or reset, the friction force between inner walls of a clamp hook and a buckle does not influence the resetting of the contact block and the contact head, thereby preventing the phenomenon of key sticking.

Description

A kind of Computer key of anti-card key

Technical field

The utility model relates to a kind of computer fittings, relates in particular to a kind of Computer key that can prevent card key.

Background technology

Nowadays, information flow is rapid, and computer is the indispensable instrument of every profession and trade, and the kind of computer and pattern are also along with its function grows with each passing day and makes rapid progress.And the computer of which kind of pattern no matter, the interface that its possess and user link up remains take keyboard as main, and button on keyboard can be pressed use conventionally repeatedly continually, and the durable degree of button and level of comfort are the targets of industry research always.

Existing " work " font button generally includes key cap cover, key cap base, and key cap cover inner side is provided with contact block, and through hole is set in key cap base, and contact block can pass through hole, makes contact block can touch the printed circuit on keyboard, thereby realizes input.Although this class press-key structure is simpler, but there will be in use card key phenomenon, because this class card key is to rely on the elasticity of contact block self to reset, and the button of " work " font is to be stuck on the buckle of key cap base by the snap fit on key cap cover to realize and supporting, when key cap cover depresses, snap fit and buckle disengaging, but snap fit still can be resisted against buckle inwall, between be formed with frictional force, affect contact block Rapid reset, thereby occur card key situation.

Utility model content

The utility model has overcome the deficiencies in the prior art, and a kind of simple in structure, Computer key that can prevent card key is provided.

For achieving the above object, the technical solution adopted in the utility model is: a kind of Computer key of anti-card key, comprise that inner side has the round-meshed key cap base of tool of key cap cover and the described key cap cover of support of contact block, described contact block can be placed in described circular hole, it is characterized in that: described contact block is hollow form, its end is socketed with contact, described contact can pass described circular hole, described contact block inwall is provided with the touch part that can press described contact, is provided with the return unit that contact block and contact are resetted between described contact block and described key cap base.

In preferred embodiment of the utility model, further comprise that described contact stretches into the end of described contact block inside and the end of described contact block is seam sealing.

In preferred embodiment of the utility model, further comprise that described return unit is back-moving spring, is equipped with described back-moving spring in described contact both sides between described contact block and described key cap base.

In preferred embodiment of the utility model, further comprise that described contact stretches into the edge of end of described contact block inside and the length that the distance of described contact block inwall is less than described touch part.

In preferred embodiment of the utility model, further comprise that the distance of described touch part and described contact block end is less than the deformation quantity in described back-moving spring maximum compression situation.

In preferred embodiment of the utility model, further comprise that described touch part made by rubber.

The utility model has solved the defect existing in background technology, the Computer key of anti-card key of the present utility model is by being arranged to hollow by contact block inside, at end cover contact head, utilize the touch part of contact block inwall setting to press contact, by return unit, contact block and contact are resetted, rather than rely on the elasticity of contact block self to reset, although key cap cover press with reseting procedure in, the frictional force that snap fit and buckle inwall exist also can not affect contact block and contact resets, thereby prevent the situation of card key.

Accompanying drawing explanation

Below in conjunction with drawings and Examples, the utility model is further illustrated.

Fig. 1 is the structural representation of preferred embodiment of the present utility model;

In figure: 10, key cap cover, 11, snap fit, 12, contact block, 13, touch part, 20, key cap base, 21, circular hole, 22, buckle, 30, contact, 40, back-moving spring.

Embodiment

In conjunction with the accompanying drawings and embodiments the utility model is described in further detail now, these accompanying drawings are the schematic diagram of simplification, basic structure of the present utility model is only described in a schematic way, so it only show the formation relevant with the utility model.

As shown in Figure 1, the utility model provides a kind of Computer key of anti-card key, comprise that inner side is provided with the key cap base with circular hole 21 20 of key cap cover 10 and the support key cap cover 10 of contact block 12, contact block 12 can be placed in circular hole 21, in the utility model, contact block 12 is hollow form, its end is socketed with contact 30, contact 30 can pass circular hole 21, at contact block 12 inwalls, be provided with the touch part 13 that can press contact 30, make contact 30 can touch the printed circuit on keyboard, thereby realize input, between contact block 12 and key cap base 20, be provided with the return unit that contact block 12 and contact 30 are resetted.Key cap cover 10 of the present utility model is stuck in by the snap fit 11 on key cap cover 10 on the buckle 22 of key cap base 20 and realizes and supporting.The utility model is by being arranged to hollow by contact block 12 inside, at end cover contact head 30, utilize the touch part 13 of contact block 12 inwall settings to press contact 30, by return unit, contact block 12 and contact 30 are resetted, rather than rely on the elasticity of contact block 12 self to reset, although key cap cover 10 press with reseting procedure in, the frictional force that snap fit 11 and buckle 22 inwalls exist can not affect contact block 12 yet and reset with contact 30, thereby prevents the situation of card key.

Further, contact 30 stretches into the end of contact block 12 inside and the end of contact block 12 is seam sealing, and the end of contact 30 can withstand the end of contact block 12, avoids return unit in the process that contact block 12 and contact 30 are resetted, and contact 30 departs from contact block 12.

In the utility model, return unit is back-moving spring 40, between contact block 12 ends and key cap base 20, in contact 30 both sides, be equipped with back-moving spring 40, user in use, even if be pressed into key cap cover 10 from side, because all there is back-moving spring 40 contact 30 both sides, can not realize input, thereby realize the reliability of button yet.

Further, contact 30 stretches into the edge of end of contact block 12 inside and the length that the distance of contact block 12 inwalls is less than touch part 13, to guarantee that touch part 13 can be pressed into contact 30, avoids occurring skidding, guarantees the sensitivity of button.

Preferably, touch part 13 is less than the deformation quantity in back-moving spring 40 maximum compression situations with the distance of contact block 12 ends, to guarantee that contact block 12 is when band moving contact 30 resets, contact 30 can with keyboard on printed circuit board depart from, complete input.

In the utility model, touch part 13 is made by rubber, and soft rubber touch part 13, when pressing contact 30, can not produce the sound, can not produce noise.

The Computer key of anti-card key of the present utility model is by being arranged to hollow by contact block inside, at end cover contact head, utilize the touch part of contact block inwall setting to press contact, by return unit, contact block and contact are resetted, rather than rely on the elasticity of contact block self to reset, although key cap cover press with reseting procedure in, the frictional force that snap fit and buckle inwall exist can not affect contact block and contact reset yet, thereby prevents the situation of card key.

Above foundation desirable embodiment of the present utility model is enlightenment, and by above-mentioned description, related personnel can, within not departing from the scope of this utility model technological thought, carry out various change and modification completely.The technical scope of this utility model is not limited to the content on specification, must determine technical scope according to claim scope.

Claims (6)

1. the Computer key of an anti-card key, comprise that inner side has the round-meshed key cap base of tool of key cap cover and the described key cap cover of support of contact block, described contact block can be placed in described circular hole, it is characterized in that: described contact block is hollow form, its end is socketed with contact, described contact can pass described circular hole, and described contact block inwall is provided with the touch part that can press described contact, is provided with the return unit that contact block and contact are resetted between described contact block and described key cap base.

2. the Computer key of anti-card key according to claim 1, is characterized in that: described contact stretches into the end of described contact block inside and the end of described contact block is seam sealing.

3. the Computer key of anti-card key according to claim 2, is characterized in that: described return unit is back-moving spring, between described contact block and described key cap base, in described contact both sides, is equipped with described back-moving spring.

4. the Computer key of anti-card key according to claim 3, is characterized in that: described contact stretches into the edge of end of described contact block inside and the length that the distance of described contact block inwall is less than described touch part.

5. the Computer key of anti-card key according to claim 4, is characterized in that: the distance of described touch part and described contact block end is less than the deformation quantity in described back-moving spring maximum compression situation.

6. the Computer key of anti-card key according to claim 5, is characterized in that: described touch part is made by rubber.