CN220473965U - Computer input device - Google Patents

Abstract

The utility model belongs to the technical field of computers, and particularly relates to a computer input device, which comprises a bottom shell, a top shell, a circuit board assembly and a plurality of groups of keys; the top shell is covered on the bottom shell and forms a mounting cavity, the circuit board assembly is arranged in the mounting cavity, a plurality of keys are arranged on the circuit board assembly, and each key extends out from the top side of the top shell; the device also comprises an elastic supporting piece and a fixed supporting piece; the elastic supporting piece is arranged in the mounting cavity, and one end of the elastic supporting piece is used for supporting the circuit board assembly, so that the elastic supporting piece forms upward elastic supporting force for the circuit board assembly; the fixed support piece is arranged in the mounting cavity, the fixed support piece is provided with a supporting surface for supporting the circuit board assembly, the fixed support piece is further provided with an operation part extending out of the mounting cavity, the operation part is slid or rotated, and the supporting surface is abutted to the bottom side of the circuit board assembly. The computer input device provided by the utility model has two different operation handfeel, and the experience of a user is improved.

Description

Computer input device

Technical Field

The present utility model relates to a computer input device, and particularly to a computer input device.

Background

Computers (computers) are a tool for life, work and entertainment at present; the computer is required to input the control information into the technical machine by an operator; the conveying device of the technical machine comprises a mouse, a keyboard and the like. The operator uses the conveyor very frequently for keyboards, so that the feel of using an input device like a keyboard is a consideration for the user. And the requirements for the keyboard are different under different use environments. For example, an input device such as a keyboard used in a general operation has a light touch feeling and a small resistance to key pressing, and is preferable to a user. While some game lovers, especially sports game lovers, generally use a keyboard, the force of pressing keys is relatively large, even the force can be operated in a violent manner, and the keys of the keyboard can be pressed for a long time; therefore, a common keyboard can cause certain fatigue after being pressed for a long time; the main board in the keyboard of many game players is provided with elastic floating, and the experience of use is improved through elastic buffering.

The chinese patent literature of publication No. CN219163234U discloses an intelligent positioning-free plate keyboard, including the keyboard upper cover, the keyboard lower cover, the mechanical axis, the PCBA board, the key cap, drain pan and receiving module, install on the cross axle center of mechanical axis of key cap, the mechanical axis is installed on the PCBA board, there is one deck PORON cotton at the mechanical axis all around, PORON cotton's one side and PCBA board laminating, be equipped with the high-elastic cotton pad of buffering between PCBA board's another side and the drain pan, the surface of keyboard upper cover is equipped with the receiver storehouse, place the receiver, high-elastic cotton pad comprises special high-elastic mute cotton, the composition of special high-elastic mute cotton is 100% polyester fiber, have good elastic fibrous structure, when the one end of mechanical axis produces the contact with the surface of high-elastic cotton pad, play the effect of absorbing mechanical axis impact force through high-elastic cotton pad, thereby reduce mechanical axis and high-elastic mute cotton collide the sound, play the effect of producing, adopt PORON cotton and high-elastic cotton to laminate the panel, reduce the dustproof effect that the PCBA board and the air that drops down to the PCBA, thereby the PCBA is played to the dust-proof effect to the PCBA.

In the technical scheme of the patent document, the PCBA board is supported by the high-elastic cotton pad, and the PCBA board plays a good role in buffering when a key is pressed. However, the keyboard in the technical scheme is only one mode with elastic support, and the use mode is single.

Disclosure of Invention

The utility model aims to provide a computer input device which can realize two modes of elastic support and hard support and increase the experience of a user.

In order to achieve the above objective, an embodiment of the present utility model provides a computer input device, including a bottom case, a top case, a circuit board assembly, and a plurality of sets of keys; the top shell is covered on the bottom shell and forms a mounting cavity, the circuit board assembly is arranged in the mounting cavity, a plurality of keys are arranged on the circuit board assembly, and each key extends out from the top side of the top shell; the device also comprises an elastic supporting piece and a fixed supporting piece; the elastic supporting piece is arranged in the mounting cavity, and one end of the elastic supporting piece is used for supporting the circuit board assembly, so that the elastic supporting piece forms upward elastic supporting force for the circuit board assembly; the fixed support piece is arranged in the mounting cavity, the fixed support piece is provided with a supporting surface for supporting the circuit board assembly, the fixed support piece is further provided with an operation part extending out of the mounting cavity, the operation part is slid or rotated, and the supporting surface is abutted to the bottom side of the circuit board assembly.

Further, the fixed support member is slidably disposed in the mounting cavity, and the support surface gradually supports the circuit board assembly when the fixed support member slides.

Further, the fixed supporting piece comprises two sliding strips which are oppositely arranged, a connecting piece is connected between the two sliding strips, a hook which extends downwards is arranged at the bottom side of each sliding strip, and a supporting surface is arranged on the hook; the circuit board assembly is provided with a clearance groove for avoiding the hook, so that the hook is positioned at the bottom side of the circuit board assembly.

Further, one side of the hook is also provided with a clamping groove, and the bottom surface of the clamping groove is connected with the supporting surface.

Further, the two sliding strips and the connecting piece enclose a square frame; the operating part is connected with the handle of the square frame body to push or pull the handle so as to slide the square frame body.

Further, the two opposite inner side walls of the top shell are provided with sliding grooves, and the sliding strips are arranged in the corresponding sliding grooves in a sliding manner.

Further, the fixed supporting piece is a frame body arranged in the bottom shell, the frame body is positioned at the bottom side of the circuit board assembly, two opposite sides of the frame body are provided with protruding parts extending upwards, and the top surfaces of the protruding parts form supporting surfaces;

the circuit board assembly is provided with a clearance gap corresponding to the bulge part, the upper end of the bulge part stretches into the clearance gap, or the bottom side of the circuit board assembly is provided with a downward extending extension part, and the extension part is positioned on the upper side of the bulge part;

the top surface of the protruding part is gradually abutted against the bottom side of the circuit board assembly or the bottom side of the extending part to enable the supporting surface to face upwards to support the circuit board assembly.

Further, the elastic support piece comprises a plurality of elastic rubber mats, the elastic rubber mats are arranged along the inner side edge of the bottom shell, and the top layer of each elastic rubber mat is used for being abutted with the circuit board assembly.

Further, the edge of drain pan is equipped with the chimb that upwards extends, and the chimb is equipped with a plurality of constant head tanks, and the elasticity cushion is located in the constant head tank.

Further, the elastic supporting piece is a plurality of elastic hanging pieces arranged at the bottom side of the top shell, the elastic hanging pieces comprise a connecting shaft, a compression spring and a connecting sleeve, the upper end of the connecting shaft is fixedly connected at the bottom side of the top shell, and the lower end of the connecting shaft is provided with a limiting part; the connecting sleeve and the compression spring are sequentially sleeved on the connecting shaft, the lower end of the compression spring is abutted on the limiting part and used for lifting the connecting sleeve upwards, and the circuit board assembly is fixedly connected with the connecting sleeve of each elastic suspension piece.

Further, the circuit board assembly comprises a carrier plate and a circuit board, and the circuit board is positioned at the bottom side of the carrier plate; the key comprises a key main body, a positioning shaft and an electric pin; the key main body is arranged on the carrier plate, and the positioning shaft and the electric pins are connected with the circuit board, so that the carrier plate, the circuit board and the keys form a whole; connecting parts are extended from two sides of the carrier plate and are used for being connected with the elastic supporting piece or/and the fixed supporting piece.

Further, the bottom side of the top shell is also provided with a plurality of guide shafts extending downwards, and the connecting part is provided with guide holes or guide grooves which are in sliding fit with the guide shafts.

The above technical solutions in the computer input device provided by the embodiments of the present utility model have at least the following technical effects:

the circuit board assembly in the computer input device adopts two different structural members of the elastic supporting member and the fixed supporting member to mutually and alternatively support the circuit board assembly, so that different using handfeel is realized, and the use of different scenes of a user is met. When the hard support mode is needed, an operator can rotate or push the fixed support piece through the operation part, so that the support surface of the fixed support piece extrudes and supports the circuit board assembly, the circuit board assembly is completely fixed and limited by the fixed support piece, and the elastic support piece does not contact with the circuit board assembly or plays a role in elastically supporting the circuit board assembly, so that the effect of hard support on the circuit board assembly is achieved, and the circuit board assembly is hard-supported when the key is pressed. When a user needs to switch the elastic support hand feeling mode, the fixed supporting piece is driven by the operation part, so that the supporting surface is completely separated from the circuit board assembly, and the circuit board assembly is completely elastically supported by the elastic piece, so that when the key is pressed, the circuit board assembly also sinks for a distance, and the elastic buffer hand feeling is realized. Therefore, the computer input device provided by the utility model has two different operation handfeel, and the experience of a user is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a block diagram of a computer input device according to an embodiment of the present utility model.

Fig. 2 is a longitudinal section view of a computer input device according to an embodiment of the present utility model.

Fig. 3 is a cross-sectional view of a computer input device according to an embodiment of the present utility model.

Fig. 4 is an enlarged view of a portion of fig. 3.

Fig. 5 is an exploded view of a computer input device according to an embodiment of the present utility model.

Fig. 6 is a structural diagram of a fixing support of a computer input device according to an embodiment of the present utility model.

Fig. 7 is a partial enlarged view of fig. 6.

Fig. 8 is a block diagram of a base portion of a computer input device according to an embodiment of the present utility model.

Fig. 9 is a partial enlarged view of fig. 8.

Fig. 10 is a block diagram of a top case portion of a computer input device according to an embodiment of the present utility model.

FIG. 11 is a top view of a computer input device according to an embodiment of the present utility model.

Fig. 12 is a cross-sectional view of another embodiment of a computer input device provided in an embodiment of the present utility model.

Fig. 13 is a partially enlarged view of 12.

Fig. 14 is a cross-sectional view of another embodiment of a fixed support of a computer input device according to an embodiment of the present utility model.

Fig. 15 is a partial enlarged view of fig. 14.

FIG. 16 is a cross-sectional view of yet another embodiment of a stationary support for a computer input device according to an embodiment of the present utility model.

Fig. 17 is a partial view of fig. 16.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and intended to illustrate embodiments of the utility model and should not be construed as limiting the utility model.

In the description of the embodiments of the present utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate description of the embodiments of the present utility model and simplify description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the embodiments of the present utility model, the meaning of "plurality" is two or more, unless explicitly defined otherwise.

In the embodiments of the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured" and the like are to be construed broadly and include, for example, either permanently connected, removably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the embodiments of the present utility model will be understood by those of ordinary skill in the art according to specific circumstances.

In an embodiment of the computer input device of the present utility model, please refer to fig. 1-11, the computer input device (keyboard) includes a bottom case 100, a top case 200, a circuit board assembly 300 and a plurality of sets of keys 400. Wherein, the top case 200 is covered on the bottom case 100 and forms a mounting cavity 101, and the circuit board assembly 300 is disposed in the mounting cavity 101; a plurality of keys 400 are provided on the circuit board assembly 300, and each key 400 protrudes from the top side of the top case 200.

The keyboard of the present embodiment further includes an elastic support 500 and a fixing support 600. The elastic support 500 is disposed in the mounting cavity 101, and one end of the elastic support 500 is used for supporting the circuit board assembly 300, so that the elastic support 500 forms an upward elastic supporting force on the circuit board assembly 300. When the key 400 is pressed by the operator using the keyboard input, the elastic support 500 has a certain buffering effect on the pressing force. Specifically, when the key 400 is pressed downward, the elastic supporting member 500 is elastically deformed downward, so that the circuit board assembly 300 is wholly sunk for a distance, and the buffering effect is achieved, so that the effect of elastic floating is achieved when the keyboard is operated, and the elastic hand feeling of operators is increased.

Referring to fig. 1 to 6, the fixed support 600 is disposed in the mounting cavity 101, and the fixed support 600 is provided with a supporting surface 601 for supporting the circuit board assembly 300, and the fixed support 600 is further provided with an operation portion 602 extending out of the mounting cavity 101, and by sliding or rotating the operation portion 602, the supporting surface 601 can be abutted against the bottom side of the circuit board assembly 300. When the operator does not need elastic support and instead uses hard support in use, the operation part 602 can be rotated or slid to enable the supporting surface 601 to move close to the circuit board assembly 300, so that the supporting surface 601 gradually plays a supporting role on the circuit board assembly 300 until the circuit board assembly 300 is completely supported, and at this time, the elastic support 500 does not interfere with the fixed support 600 to support the circuit board assembly 300. Therefore, the keyboard of the present embodiment can realize the hand feeling of elastic support and the hand feeling of hard support for the circuit board assembly 300, and meet the actual use requirements of operators.

Further, an embodiment in which the circuit board assembly 300 is supported by the fixing support 600 by rotating the operation part 602; specifically, the fixing support 600 is two rotating shafts rotatably connected in the bottom chassis 100, and the rotating shafts are provided with cam portions, and the supporting surface 601 is disposed on the cam portions, so that the cam portions gradually support the circuit board assembly 300 when the rotating shafts are rotated.

Further, referring to fig. 3 to 7, in the embodiment in which the fixing support 600 supports the circuit board assembly 300 by sliding the operation portion 602, the fixing support 600 is slidably disposed in the mounting cavity 101, and the support surface 601 gradually supports the circuit board assembly 300 when the fixing support 600 slides. The supporting surface 601 may be an arc surface or an inclined surface, so that the supporting surface 601 can gradually support the circuit board assembly 300.

Still further, referring to fig. 5 to 7, the fixing support 600 includes two opposite sliding strips 610, a connecting piece 620 is connected between the two sliding strips 610, a hook 611 extending downward is disposed at the bottom side of each sliding strip 610, and the supporting surface 601 is disposed on the hook 611. The circuit board assembly 300 is provided with a clearance groove 301 for avoiding the hook 611, so that the hook 611 can extend to the bottom side of the circuit board assembly 300. Therefore, when the two sliding bars 610 are pushed to slide, the hooks 611 move to the bottom side of the circuit board assembly 300, so that the hooks 611 lift the circuit board assembly 300, and a supporting effect is achieved on the circuit board assembly 300.

Further, a clamping groove 612 is further formed on one side of the hook 611, and the bottom surface of the clamping groove 612 is connected with the supporting surface 601. When the slide bar 610 is pushed to slide, the edge of the clearance groove 301 will be clamped into the clamping groove 612, so that the fixing support 600 plays a complete limiting role on the circuit board assembly 300, and the circuit board assembly 300 will not move up and down in the mounting cavity 101.

Further, referring to fig. 5 and 6, in order to enable the two sliding strips 610 to simultaneously and stably slide in the installation cavity 101, a square frame is enclosed by the two sliding strips 610 and the connecting piece; the operation part 602 is connected to a handle of the square frame, and pushes or pulls the handle to slide the square frame. Thus, the two sliding strips 610 slide synchronously, so that each supporting surface 601 on the sliding strip 610 supports the circuit board assembly 300 simultaneously.

Further, for sliding the square frame in the top case 200, sliding grooves 201 are provided on two opposite inner sidewalls of the top case 200, and referring to fig. 10 and 11, sliding strips 610 are slidably provided in the corresponding sliding grooves 201. Therefore, the sliding bar 610 can be supported and limited in a sliding manner through the sliding groove 201, so that the square frame body can slide in the top shell 200 more stably.

Further, referring to fig. 15 to 17, in another embodiment in which the fixing support 600 is slidably disposed in the mounting cavity 101, specifically, the fixing support 600 is a frame disposed in the bottom case 100, and the frame is located at the bottom side of the circuit board assembly 300, two opposite sides of the frame are provided with protruding portions 630 extending upward, and the top surfaces of the protruding portions 630 form the supporting surface 601. The fixing support 600 may be fixedly supported to the circuit board assembly 300 by pushing the fixing support 600 to slide within the mounting cavity 101.

Specifically, referring to fig. 16 and 17, in an embodiment in which the protruding portion 630 supports the circuit board assembly 300, the circuit board assembly 300 is provided with a clearance space 302 corresponding to the clearance corresponding protruding portion 630, and the clearance space 302 may be a cavity formed at the bottom of the circuit board assembly 300 or a through slot; while the fixing support 600 supports the circuit board assembly 300, the upper end of the protruding portion 630 protrudes into the clearance space 302. When the fixing support 600 is pushed to slide, the protruding portion 630 gradually moves from the avoidance space to the bottom side of the circuit board assembly 300, and the circuit board assembly 300 is fixedly supported.

In another embodiment of supporting the circuit board assembly 300 by the boss 630, referring to fig. 14 and 15, the bottom side of the circuit board assembly 300 is provided with a downward extending extension 303, and the extension 303 is located on the upper side of the boss 630. The top surface of the protruding portion 630 gradually abuts against the bottom side of the extending portion 303 to support the circuit board assembly 300 upwards by the supporting surface 601.

Further, referring to fig. 8 and 9, the elastic support 500 supports an embodiment of the elastic support of the circuit board assembly 300, and in particular, the elastic support 500 includes a plurality of elastic rubber pads disposed along the inner side edge of the bottom case 100, and a top layer of the elastic rubber pads is used to abut against the circuit board assembly 300. When the elastic support 500 supports the circuit board assembly 300, the top surface of each elastic rubber pad supports the circuit board assembly 300 to form an elastic support.

Further, referring to fig. 5 and 6, the edge of the bottom chassis 100 is provided with a convex edge 102 extending upward, the convex edge 102 is provided with a plurality of positioning grooves 103, and the elastic rubber pad is disposed in the positioning grooves 103, so that the positioning grooves 103 position the elastic rubber pad.

Further, referring to fig. 12 and 13, the elastic support 500 supports another embodiment of the elastic support of the circuit board assembly 300; specifically, the elastic support 500 is a multi-piece elastic suspension member provided at the bottom side of the top case 200, and the elastic suspension member includes a connection shaft 501, a compression spring 502, and a connection sleeve 503. The upper end of the connecting shaft 501 is fixedly connected to the bottom side of the top case 200, and the lower end of the connecting shaft 501 is provided with a limiting portion 504. The connecting sleeve 503 and the compression spring 502 are sequentially sleeved on the connecting shaft 501, and the lower end of the compression spring 502 is abutted on the limiting part 504, so as to lift the connecting sleeve 503 upwards, and the circuit board assembly 300 is fixedly connected with the connecting sleeve 503 of each elastic suspension member. In the present embodiment, when the elastic support 500 supports the circuit board assembly 300, the circuit board assembly 300 may be elastically supported by the compression springs 502. When the fixing support 600 is required to support the circuit board assembly 300, the fixing support 600 is used to completely limit the circuit board assembly 300 up and down, and the fixing support 600 may be provided with a clamping groove 612, and the clamping groove 612 limits the fixing support.

Further, referring to fig. 2, 5, 14, and 16, the circuit board assembly 300 includes a carrier 310 and a circuit board 320, and the circuit board 320 is located on the bottom side of the carrier 310. The key 400 includes a key body 410, a positioning shaft 420 and a pin 430. The key body 410 is fixed on the carrier 310, and the positioning shaft 420 and the pins 430 are connected to the circuit board 320, so that the carrier 310, the circuit board 320, and the key 400 are integrally formed. The connecting portions 311 extend from two sides of the carrier 310, and the connecting portions 311 are used for connecting with the elastic support 500 and/or the fixing support 600. Specifically, the empty-avoiding groove 301 is disposed on the connection portion 311, and the elastic support 500 is supported at the bottom side of the connection portion 311.

Further, referring to fig. 5 and 10, the bottom side of the top case 200 is further provided with a plurality of guide shafts 202 extending downward, and the connection portion 311 is provided with guide holes or guide grooves 312 slidably engaged with the guide shafts 202. The guide shaft 202 is slidably engaged with the guide groove 312, so that the circuit board assembly 300 can be guided vertically.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims (12)

1. A computer input device comprises a bottom shell, a top shell, a circuit board assembly and a plurality of groups of keys; the top shell is covered on the bottom shell and forms a mounting cavity, the circuit board assembly is arranged in the mounting cavity, a plurality of keys are arranged on the circuit board assembly, and each key extends out from the top side of the top shell; the device is characterized by also comprising an elastic supporting piece and a fixed supporting piece; the elastic supporting piece is arranged in the mounting cavity, and one end of the elastic supporting piece is used for supporting the circuit board assembly, so that the elastic supporting piece forms upward elastic supporting force for the circuit board assembly; the fixed support piece is arranged in the mounting cavity, the fixed support piece is provided with a supporting surface for supporting the circuit board assembly, the fixed support piece is further provided with an operation part extending out of the mounting cavity, the operation part is slid or rotated, and the supporting surface is abutted to the bottom side of the circuit board assembly.

2. The computer input device of claim 1, wherein: the fixed support member is slidably arranged in the mounting cavity, and the support surface gradually supports the circuit board assembly when the fixed support member slides.

3. The computer input device of claim 1, wherein: the fixed supporting piece comprises two sliding strips which are oppositely arranged, a connecting piece is connected between the two sliding strips, a hook which extends downwards is arranged at the bottom side of each sliding strip, and the supporting surface is arranged on the hook; the circuit board assembly is provided with an empty avoiding groove for avoiding the hook, so that the hook is positioned at the bottom side of the circuit board assembly.

4. A computer input device as claimed in claim 3, wherein: one side of the hook is also provided with a clamping groove, and the bottom surface of the clamping groove is connected with the supporting surface.

5. A computer input device as claimed in claim 3, wherein: the two sliding strips and the connecting piece enclose a square frame; the operating part is connected with the handle of the square frame body, and pushes or pulls the handle to enable the square frame body to slide.

6. A computer input device as claimed in any one of claims 3 to 5, wherein: the two opposite inner side walls of the top shell are provided with sliding grooves, and the sliding strips are arranged in the corresponding sliding grooves in a sliding mode.

7. The computer input device of claim 1, wherein: the fixed supporting piece is a frame body arranged in the bottom shell, the frame body is positioned at the bottom side of the circuit board assembly, two opposite sides of the frame body are provided with protruding parts extending upwards, and the top surfaces of the protruding parts form the supporting surface;

the circuit board assembly is provided with a clearance gap corresponding to the protruding part, the upper end of the protruding part extends into the clearance gap, or the bottom side of the circuit board assembly is provided with a downward extending extension part, and the extension part is positioned on the upper side of the protruding part;

and the fixed supporting piece is slid, and the top surface of the protruding part is gradually abutted against the bottom side of the circuit board assembly or the bottom side of the extending part, so that the supporting surface faces upwards to support the circuit board assembly.

8. The computer input device of any one of claims 1-5, 7, wherein: the elastic support piece comprises a plurality of elastic rubber mats, the elastic rubber mats are arranged along the inner side edge of the bottom shell, and the top layer of each elastic rubber mat is used for being abutted to the circuit board assembly.

9. The computer input device of claim 8, wherein: the edge of drain pan is equipped with the chimb that upwards extends, the chimb is equipped with a plurality of constant head tanks, elasticity cushion is located in the constant head tank.

10. The computer input device of any one of claims 1-5, 7, wherein: the elastic supporting pieces are a plurality of elastic hanging pieces arranged on the bottom side of the top shell, each elastic hanging piece comprises a connecting shaft, a compression spring and a connecting sleeve, the upper ends of the connecting shafts are fixedly connected to the bottom side of the top shell, and the lower ends of the connecting shafts are provided with limiting parts; the connecting sleeve and the compression spring are sequentially sleeved on the connecting shaft, the lower end of the compression spring is abutted to the limiting part and used for lifting the connecting sleeve upwards, and the circuit board assembly is fixedly connected with the connecting sleeve of each elastic suspension piece.

11. The computer input device of claim 1, wherein: the circuit board assembly comprises a carrier plate and a circuit board, and the circuit board is positioned at the bottom side of the carrier plate; the key comprises a key main body, a positioning shaft and an electric pin; the key main body is arranged on the carrier plate, and the positioning shaft and the electric pins are connected with the circuit board, so that the carrier plate, the circuit board and the keys form a whole; connecting parts are extended from two sides of the carrier plate and are used for being connected with the elastic supporting piece or/and the fixed supporting piece.

12. The computer input device of claim 11, wherein: the bottom side of top shell still is equipped with many downwardly extending guiding axle, be equipped with on the connecting portion with guiding axle sliding fit's guiding hole or guide slot.