CN109580191B

CN109580191B - Computer keyboard testing device

Info

Publication number: CN109580191B
Application number: CN201811319388.6A
Authority: CN
Inventors: 赵志伟; 杨秀伟; 杨利; 田树华
Original assignee: Tangshan University
Current assignee: Jiangxi Huahong Electronics Co ltd
Priority date: 2018-11-07
Filing date: 2018-11-07
Publication date: 2020-06-30
Anticipated expiration: 2038-11-07
Also published as: CN109580191A

Abstract

A computer keyboard testing device comprises a cylinder, a cylindrical first cavity is arranged in the cylinder close to the upper end, vertical first through holes are symmetrically arranged on the left side and the right side of the bottom surface of the cylinder, the upper end of each first through hole is communicated with the corresponding first cavity, a cylindrical second cavity is arranged in the middle of the cylinder, two sides of each second cavity are communicated with the corresponding first through holes, a second through hole is arranged between the first cavity and the second cavity, a third through hole, a second through hole and the corresponding first cavity are arranged in the middle of the bottom surface of the cylinder, the third through hole and the second cavity are coaxial with the cylinder, a vertical double-output-shaft motor is fixedly installed in the second through hole, a first rotating shaft is fixedly installed at the upper end of an output shaft of the double-output-shaft motor, a second rotating shaft is fixedly installed at the lower end of the output shaft of the double-output-shaft motor, a cylindrical piston column is arranged in the first cavity in a matched mode, and the upper end of the first rotating shaft and the lower end of the second rotating shaft are all sleeved with a sleeve. The invention has simple structure, convenient use, low manufacturing cost and high use reliability.

Description

Computer keyboard testing device

Technical Field

The invention belongs to the technical field of computer keyboard testing, and particularly relates to a computer keyboard testing device.

Background

A good computer keyboard of a section needs to have longer life, a new keyboard product is developed and is needed to beat the test to the keyboard button, carry out incessant dozens of thousands of strikes to the button, button life tester on the current market is very expensive, and the structure is complicated, the routine maintenance overhauls the difficulty, need remove dust to the keyboard surface simultaneously, prevent that the dust from getting into the keyboard and influencing keyboard operation and test accuracy, current testing arrangement function is with high costs and the function singleness, be difficult to widely accepted, be difficult to realize the function of button test and automatic clearance and collection dust under simple structure's design.

Disclosure of Invention

The invention provides a computer keyboard testing device, which is used for solving the defects in the prior art.

The invention is realized by the following technical scheme:

a computer keyboard testing device comprises a cylinder, a cylindrical first cavity is arranged in the cylinder close to the upper end, vertical first through holes are symmetrically arranged on the left side and the right side of the bottom surface of the cylinder, the upper end of each first through hole is communicated with the corresponding first cavity, a cylindrical second cavity is arranged in the middle of the cylinder, two sides of each second cavity are communicated with the corresponding first through holes, a second through hole is arranged between the first cavity and the corresponding second cavity, a third through hole is arranged in the middle of the bottom surface of the cylinder, the second through hole, the first cavity, the third through hole and the second cavity are all coaxial with the cylinder, a vertical double-output-shaft motor is fixedly arranged in each second through hole, a first rotating shaft is fixedly arranged at the upper end of an output shaft of the double-output-shaft motor, a second rotating shaft is fixedly arranged at the lower end of the output shaft of the double-output-shaft motor, a cylindrical piston column is arranged in the first cavity in a, the upper end of the upper sleeve is fixedly connected with the lower end of the piston column, the side surface of the lower sleeve is in contact fit with the inner wall of a third through hole, annular grooves are formed in the inner wall of the sleeve, the grooves are wavy, transverse inserting rods are fixedly mounted on the side portions of the first rotating shaft and the second rotating shaft, the outer ends of the inserting rods are inserted into the corresponding grooves, a pressing block is fixedly mounted on the lower portion of the lower sleeve through a support and is positioned at the lower end of the third through hole, a vertical pipe is fixedly mounted on the position, which is positioned in the second cavity, of the first through hole, a plugging block is fixedly mounted in the vertical pipe close to the upper end, a tapered hole is formed in the top surface of the plugging block, the small-diameter end of the tapered hole is upward, a tapered plug is arranged in the tapered hole in a matched mode, a vertical rod is fixedly mounted at the lower end of the tapered plug, a guide sleeve, the lower end of the inclined plate faces the direction of the second cavity, the side surface of the vertical pipe is provided with a fourth through hole, the fourth through hole is arranged along the radial direction of the second cavity, a cross shaft is arranged in the fourth through hole, the inner end of the cross shaft can be in contact fit with the upper surface of the corresponding inclined plate, the outer end of the cross shaft is sleeved with a first spring, one end of the first spring is fixedly connected with the corresponding side part of the cross shaft, the other end of the first spring is fixedly connected with the outer end of the corresponding fourth through hole, the lower end of the vertical rod is sleeved with a second spring, the lower end of the second spring is fixedly connected with the corresponding side part of the vertical rod, the upper end of the second spring is fixedly connected with the lower end of the corresponding guide sleeve, an elliptical wheel is fixedly sleeved on the second rotating shaft and is positioned in the second cavity, the outer ring of the elliptical wheel is in contact fit with the inner end of the cross shaft, the outer end of the fifth through hole and the corresponding dust hold the inlet of the box and are communicated, a one-way air valve is installed in the fifth through hole, an air hole is formed in the top surface of the first cavity, a vertical guide groove is formed in the inner wall of the third through hole, a guide block is installed on the lateral portion of the sleeve at the lower portion and is inserted into the guide groove, the dust holds the lower end opening of the box, and the dust holds the filter screen which is close to the lower end and is fixedly installed in the box.

According to the computer keyboard testing device, the end part of the inserted rod, which is positioned in the groove, is sleeved with the roller through the bearing, and the roller is in contact fit with the inner wall of the groove.

In the computer keyboard testing device, the pressing block is made of an elastic material.

According to the computer keyboard testing device, the ball heads are arranged at the outer ends of the transverse shafts.

According to the computer keyboard testing device, the annular sealing ring is fixedly arranged in the second through hole, and the inner ring of the sealing ring is in contact fit with the side surface of the first rotating shaft.

According to the computer keyboard testing device, the plugs are fixedly mounted at the upper end and the lower end of the dust containing box, the jacks are formed in the positions, corresponding to the plugs, of the side surfaces of the cylinders, and the plugs can be matched with the corresponding jacks in an inserted mode.

According to the computer keyboard testing device, the annular pipe is fixedly installed at the lower end of the third through hole, the annular pipe and the third through hole are coaxially arranged, two sides of the annular pipe and the corresponding first through holes are fixedly connected and communicated through the connecting pipe, and a plurality of uniformly distributed inlet holes are formed in the bottom of the annular pipe.

The invention has the advantages that: when the invention is used, the piston column is positioned at the middle lower part in the first cavity at the initial state, the pressing block is positioned in the lower end of the third through hole, the position of the outer periphery of the elliptical wheel corresponding to the short shaft is contacted with the inner end of the cross shaft, the outer end of the cross shaft is not contacted with the corresponding inclined plate, the conical plug seals the corresponding conical hole under the action of the spring, when the press test of the keys of the computer keyboard is started, the double-output-shaft motor works, the second rotating shaft and the first rotating shaft rotate simultaneously, the second rotating shaft and the first rotating shaft respectively drive the corresponding inserted rods to rotate, the sleeve at the lower part moves downwards, the sleeve at the upper part moves upwards under the matching of the inserted rods and the corresponding grooves, the pressing block is pressed along with the downward movement of the sleeve at the lower part, the piston column moves upwards along with the sleeve at the upper part to reduce the space pressure at the lower part of the, the outer end of the cross shaft extends into the corresponding vertical pipe, when the piston column is close to the highest point, the outer end of the cross shaft is in contact with the upper surface of the corresponding inclined plate, along with the continuous movement of the cross shaft, the cross shaft can drive the vertical rod and the corresponding conical plug to move downwards through the corresponding inclined plate and the corresponding bracket, the conical plug moves downwards to open the corresponding conical hole, because the air pressure in the space at the lower part of the piston column in the first cavity is higher than the air pressure on the surface of the keyboard, at the moment when the conical plug opens the corresponding conical hole, the air around the keys of the keyboard and in the gaps quickly passes through the first through hole and the conical hole and is sucked into the first cavity, the dust on the surfaces of the keys of the keyboard and in the gaps is sucked into the first cavity along with the high-speed flowing air, along with the continuous rotation of the double-output shaft motor, the cross shaft moves towards the inner end direction, at the moment, the, all parts return to the initial state, the piston column moves downwards in the process of returning to the initial state, the air pressure in the lower space in the first cavity is increased, air containing dust is discharged into the corresponding dust containing box through the one-way air valve under the action of air pressure difference, the dust is left in the dust containing box under the action of the filter screen, the period of one-time key pressing test and dust collection is completed at the moment, the period can run uninterruptedly along with the continuous work of the double-output-shaft motor, and the dust can be automatically cleaned and collected while the key pressing test is realized through the design.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural view of the present invention; FIG. 2 is an enlarged view of a portion I of FIG. 1; fig. 3 is an enlarged view of the view from the direction a of fig. 1.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

A computer keyboard testing device comprises a cylinder 1, a cylindrical first cavity 2 is arranged in the cylinder 1 close to the upper end, vertical first through holes 3 are symmetrically arranged on the left side and the right side of the bottom surface of the cylinder 1, the upper end of each first through hole 3 is communicated with the corresponding first cavity 2, a cylindrical second cavity 4 is arranged in the middle of the cylinder 1, two sides of each second cavity 4 are communicated with the corresponding first through holes 3, a second through hole 5 is arranged between each first cavity 2 and the corresponding second cavity 4, a third through hole 6 is arranged in the middle of the bottom surface of the cylinder 1, the second through holes 5, the first cavities 2, the third through holes 6 and the second cavities 4 are coaxial with the cylinder 1, a vertical double-output-shaft motor 7 is fixedly arranged in each second through hole 5, a first rotating shaft 8 is fixedly arranged at the upper end of an output shaft of the double-output-shaft motor 7, a second rotating shaft 9 is fixedly arranged at the lower end of the output shaft of, a cylindrical piston column 10 is arranged in the first cavity 2 in a matching way, the upper end of the first rotating shaft 8 and the lower end of the second rotating shaft 9 are both sleeved with a sleeve 11, the upper end of the sleeve 11 at the upper part is fixedly connected with the lower end of the piston column 10, the side surface of the sleeve 11 at the lower part is in contact fit with the inner wall of the third through hole 6, the inner wall of the sleeve 11 is provided with an annular groove 12, the groove 12 is wave-shaped, the lateral parts of the first rotating shaft 8 and the second rotating shaft 9 are both fixedly provided with a transverse inserted rod 13, the outer end of the inserted rod 13 is inserted into the corresponding groove 12, the lower part of the sleeve 11 at the lower part is fixedly provided with a pressing block 14 through a bracket, the pressing block 14 is positioned at the lower end of the third through hole 6, the position of the second cavity 4 in the first through hole 3 is both fixedly provided with a vertical pipe 15, a block 16 is fixedly arranged at the upper end in, a conical plug 18 is arranged in the conical hole 17 in a matching manner, a vertical rod 19 is fixedly arranged at the lower end of the conical plug 18, a guide sleeve 20 is sleeved on the vertical rod 19, the side part of the guide sleeve 20 is fixedly connected with the inner wall of the corresponding vertical pipe 15 through a support, an inclined plate 21 is fixedly arranged at the lower end of the vertical rod 19 through a support, the lower end of the inclined plate 21 faces the direction of the second cavity 4, a fourth through hole 22 is formed in the side surface of the vertical pipe 15, the fourth through hole 22 is formed in the radial direction of the second cavity 4, a cross shaft 23 is arranged in the fourth through hole 22, the inner end of the cross shaft 23 can be in contact fit with the upper surface of the corresponding inclined plate 21, a first spring 24 is sleeved at the outer end of the cross shaft 23, one end of the first spring 24 is fixedly connected with the side part of the corresponding cross shaft 23, the other end of the first spring 24 is fixedly connected with the outer end of the corresponding, the upper end of second spring 25 and the lower extreme fixed connection of the guide sleeve 20 that corresponds, fixed suit elliptical wheel 26 is gone up in the second pivot 9, elliptical wheel 26 is located inside second cavity 4, elliptical wheel 26's outer lane and the inner contact cooperation of cross axle 23, the dust is installed respectively to the cylinder 1 left and right sides and is held case 27, first cavity 2 both sides are corresponded the dust and are held case 27 department and all set up fifth through-hole 28, the outer end of fifth through-hole 28 and the entry intercommunication that the corresponding dust held case 27, all install one-way pneumatic valve 29 in the fifth through-hole 28, wind hole 35 is seted up to first cavity 2 top surface, set up vertical guide way 39 on the third through-hole 6 inner wall, 11 lateral part installation guide block 40 of sleeve pipe of lower part, guide block 40 inserts in guide way 39, the dust holds case 27 lower extreme opening, the dust holds the case 27 in near lower extreme fixed mounting filter screen 41. When the invention is used, the piston column 10 is positioned at the middle lower part in the first cavity 2 in the initial state, the press block 14 is positioned in the lower end of the third through hole 6, the position of the outer periphery of the elliptical wheel 26 corresponding to the short shaft is contacted with the inner end of the transverse shaft 23, the outer end of the transverse shaft 23 is not contacted with the corresponding inclined plate 21, the conical plug 18 seals the corresponding conical hole 17 under the action of the spring, when the press test of the keys of the computer keyboard is started, the double-output shaft motor 7 works, the second rotary shaft 9 and the first rotary shaft 8 rotate simultaneously, the second rotary shaft 9 and the first rotary shaft 8 drive the corresponding inserted link 13 to rotate respectively, under the matching of the inserted link 13 and the corresponding groove 12, the lower sleeve 11 moves downwards, the upper sleeve 11 moves upwards, the press block 14 moves downwards along with the lower sleeve 11 to press the keys, the piston column 10 moves upwards along with the upper sleeve 11 to reduce the pressure in the space at the lower part of the piston column, meanwhile, the second rotating shaft 9 drives the elliptical wheel 26 to rotate, the outer end of the transverse shaft 23 extends into the corresponding vertical pipe 15 along with the rotation of the elliptical wheel 26, when the piston column 10 is close to the highest point, the outer end of the transverse shaft 23 is in contact with the upper surface of the corresponding inclined plate 21, along with the continuous movement of the transverse shaft 23, the transverse shaft 23 can drive the vertical rod 19 and the corresponding conical plug 18 to move downwards through the corresponding inclined plate 21 and the corresponding support, the conical plug 18 moves downwards to open the corresponding conical hole 17, because the air pressure in the space at the lower part of the piston column 10 in the first cavity 2 and the air pressure on the surface of the keyboard have higher air pressure difference, when the conical plug 18 opens the corresponding conical hole 17, the air around the keys of the keyboard and in the gaps quickly passes through the first through holes 3 and the conical holes 17 and then is sucked into the first cavity 2, and the dust on the surfaces of the keyboard and in the gaps can also be sucked into the first cavity 2 along with the air flowing at, as the double-output shaft motor 7 continues to rotate, the transverse shaft 23 moves towards the inner end direction thereof, at the same time, the conical plug 18 moves upwards rapidly and closes the corresponding conical hole 17, all the parts return to the initial state, in the process of returning to the initial state, the piston rod 10 moves down, the air pressure in the lower space in the first chamber 2 increases, under the action of the air pressure difference, the air containing dust is discharged into the corresponding dust containing box 27 through the one-way air valve 29, dust is left in the dust containing box 27 under the action of the filter screen 41, and at the moment, the period of one-time key pressing test and dust collection is completed, and along with the continuous work of the double-output-shaft motor 7, the cycle can run uninterruptedly, and the design can realize automatic cleaning and dust collection while the press test of the key is carried out.

Specifically, as shown in the drawings, the ends of the inserted rod 13 in the groove 12 are sleeved with rollers 30 through bearings, and the rollers 30 are in contact fit with the inner wall of the groove 12. Through the design, the abrasion between the inserted bar 13 and the corresponding groove 12 can be reduced, and the service life of the invention is prolonged.

Specifically, as shown in the figure, the pressing block 14 of the present embodiment is made of an elastic material. The pressing block 14 made of elastic material can avoid hard contact with the keyboard when pressed with the keyboard keys, thereby reducing the damage to the keyboard and improving the detection accuracy.

Further, as shown in the drawings, the ball 31 is mounted at the outer end of the transverse shaft 23. The cross shaft 23 is in contact fit with the corresponding inclined plate 21 through the ball head 21, sliding friction is changed into rolling friction, abrasion between the cross shaft 23 and the inclined plate 21 can be reduced, and the service life of the invention is prolonged.

Furthermore, as shown in the drawings, an annular seal ring 32 is fixedly installed in the second through hole 5 in the embodiment, and an inner ring of the seal ring 32 is in contact fit with a side surface of the first rotating shaft 8. The sealing ring 32 separates the first cavity 2 from the second through hole 5, thereby improving the sealing effect of the first cavity 2.

Furthermore, as shown in the figure, plugs 33 are fixedly installed at the upper end and the lower end of the dust containing box 27, jacks 34 are formed in the side surface of the cylinder 1 corresponding to the plugs 33, and the plugs 33 can be matched with the corresponding jacks 34 in an inserting manner. The plug 33 and the corresponding jack 34 are in plug-in fit to carry out plug-in connection between the dust containing box 27 and the cylinder 1, so that the dust containing box 27 can be conveniently installed and replaced.

Furthermore, as shown in the figure, the annular tube 36 is fixedly installed at the lower end of the third through hole 6 in the embodiment, the annular tube 36 and the third through hole 6 are coaxially arranged, both sides of the annular tube 36 and the corresponding first through holes 3 are fixedly connected and communicated through the connecting tube 37, and the bottom of the annular tube 36 is provided with a plurality of inlet holes 38 which are uniformly distributed. The design can uniformly suck dust around the keys, and the dust cleaning effect is improved.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. A computer keyboard testing device, comprising a cylinder (1), characterized in that: a cylindrical first cavity (2) is arranged in the cylinder (1) close to the upper end, vertical first through holes (3) are symmetrically arranged on the left side and the right side of the bottom surface of the cylinder (1), the upper ends of the first through holes (3) are communicated with the first cavity (2), a cylindrical second cavity (4) is arranged in the middle of the cylinder (1), two sides of the second cavity (4) are communicated with the corresponding first through holes (3), a second through hole (5) is arranged between the first cavity (2) and the second cavity (4), a third through hole (6) is arranged in the middle of the bottom surface of the cylinder (1), the second through hole (5), the first cavity (2), the third through hole (6) and the second cavity (4) are coaxial with the cylinder (1), a vertical double-output shaft motor (7) is fixedly arranged in the second through hole (5), and a first rotating shaft (8) is fixedly arranged at the upper end of the output shaft of the double-output shaft motor (7), a second rotating shaft (9) is fixedly installed at the lower end of an output shaft of a double-output-shaft motor (7), a cylindrical piston column (10) is arranged in a first cavity (2) in a matched mode, sleeves (11) are sleeved at the upper end of a first rotating shaft (8) and the lower end of the second rotating shaft (9), the upper end of the upper sleeve (11) is fixedly connected with the lower end of the piston column (10), the side face of the lower sleeve (11) is in contact fit with the inner wall of a third through hole (6), annular grooves (12) are formed in the inner wall of the sleeves (11), the grooves (12) are wavy, transverse inserting rods (13) are fixedly installed at the side portions of the first rotating shaft (8) and the second rotating shaft (9), the outer ends of the inserting rods (13) are inserted into the corresponding grooves (12), pressing blocks (14) are fixedly installed on the lower portion of the lower pressing sleeve (11) through a support, and the pressing blocks (14) are located at the lower, the position inside the first through hole (3) and located in the second cavity (4) is fixedly provided with a vertical pipe (15), a blocking block (16) is fixedly arranged in the vertical pipe (15) and close to the upper end, the top surface of the blocking block (16) is provided with a tapered hole (17), the small diameter end of the tapered hole (17) faces upwards, a tapered plug (18) is arranged in the tapered hole (17) in a matched manner, the lower end of the tapered plug (18) is fixedly provided with a vertical rod (19), the vertical rod (19) is sleeved with a guide sleeve (20), the side part of the guide sleeve (20) is fixedly connected with the inner wall of the corresponding vertical pipe (15) through a support, the lower end of the vertical rod (19) is fixedly provided with an inclined plate (21) through the support, the lower end of the inclined plate (21) faces the direction of the second cavity (4), the side surface of the vertical pipe (15) is provided with a fourth through hole (22), the fourth through hole (22), the inner end of the cross shaft (23) can be in contact fit with the upper surface of the corresponding inclined plate (21), the outer end of the cross shaft (23) is sleeved with a first spring (24), one end of the first spring (24) is fixedly connected with the side part of the corresponding cross shaft (23), the other end of the first spring (24) is fixedly connected with the outer end of the corresponding fourth through hole (22), the lower end of the vertical rod (19) is sleeved with a second spring (25), the lower end of the second spring (25) is fixedly connected with the side part of the corresponding vertical rod (19), the upper end of the second spring (25) is fixedly connected with the lower end of the corresponding guide sleeve (20), an elliptical wheel (26) is fixedly sleeved on the second rotating shaft (9), the elliptical wheel (26) is positioned inside the second cavity (4), the outer ring of the elliptical wheel (26) is in contact fit with the inner end of the cross shaft (23), dust containing boxes (27) are respectively installed on the left side and the right side of the cylinder (1), and the positions, corresponding to the dust containing boxes (27), on, the outer end of fifth through-hole (28) holds the entry intercommunication of case (27) with the dust that corresponds, all install one-way pneumatic valve (29) in fifth through-hole (28), wind hole (35) are seted up to first cavity (2) top surface, set up vertical guide way (39) on third through-hole (6) inner wall, sleeve pipe (11) lateral part installation guide block (40) of lower part, guide block (40) insert in guide way (39), the dust holds case (27) lower extreme opening, the dust holds and is close to lower extreme department fixed mounting filter screen (41) in case (27).

2. A computer keyboard testing device according to claim 1, wherein: the end part of the inserted bar (13) positioned in the groove (12) is sleeved with a roller (30) through a bearing, and the roller (30) is in contact fit with the inner wall of the groove (12).

3. A computer keyboard testing device according to claim 1, wherein: the pressing block (14) is made of elastic material.

4. A computer keyboard testing device according to claim 1, wherein: the outer ends of the transverse shafts (23) are all provided with ball heads (31).

5. A computer keyboard testing device according to claim 1, wherein: an annular sealing ring (32) is fixedly arranged in the second through hole (5), and the inner ring of the sealing ring (32) is in contact fit with the side surface of the first rotating shaft (8).

6. A computer keyboard testing device according to claim 1, wherein: dust hold case (27) both ends equal fixed mounting plug (33) about, jack (34) are all seted up to the position that cylinder (1) side corresponds plug (33), plug (33) can be with the jack (34) cooperation of pegging graft that corresponds.

7. A computer keyboard testing device according to claim 1, wherein: third through-hole (6) lower extreme fixed mounting ring pipe (36), ring pipe (36) and third through-hole (6) coaxial setting, all through connecting pipe (37) fixed connection and intercommunication between ring pipe (36) both sides and the first through-hole (3) that correspond, several evenly distributed's inlet hole (38) are seted up to ring pipe (36) bottom.